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/*-
* SPDX-License-Identifier: BSD-3-Clause
*
* Copyright (c) 2001-2008, by Cisco Systems, Inc. All rights reserved.
* Copyright (c) 2008-2012, by Randall Stewart. All rights reserved.
* Copyright (c) 2008-2012, by Michael Tuexen. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are met:
*
* a) Redistributions of source code must retain the above copyright notice,
* this list of conditions and the following disclaimer.
*
* b) Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in
* the documentation and/or other materials provided with the distribution.
*
* c) Neither the name of Cisco Systems, Inc. nor the names of its
* contributors may be used to endorse or promote products derived
* from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
* THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
* LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
* THE POSSIBILITY OF SUCH DAMAGE.
*/
#if defined(__FreeBSD__) && !defined(__Userspace__)
#include <sys/cdefs.h>
__FBSDID("$FreeBSD: head/sys/netinet/sctp_usrreq.c 366750 2020-10-16 10:44:48Z tuexen $");
#endif
#include <netinet/sctp_os.h>
#if defined(__FreeBSD__) && !defined(__Userspace__)
#include <sys/proc.h>
#endif
#include <netinet/sctp_pcb.h>
#include <netinet/sctp_header.h>
#include <netinet/sctp_var.h>
#ifdef INET6
#include <netinet6/sctp6_var.h>
#endif
#include <netinet/sctp_sysctl.h>
#include <netinet/sctp_output.h>
#include <netinet/sctp_uio.h>
#include <netinet/sctp_asconf.h>
#include <netinet/sctputil.h>
#include <netinet/sctp_indata.h>
#include <netinet/sctp_timer.h>
#include <netinet/sctp_auth.h>
#include <netinet/sctp_bsd_addr.h>
#if defined(__Userspace__)
#include <netinet/sctp_callout.h>
#else
#include <netinet/udp.h>
#endif
#if defined(__FreeBSD__) && !defined(__Userspace__)
#include <sys/eventhandler.h>
#endif
#if defined(HAVE_SCTP_PEELOFF_SOCKOPT)
#include <netinet/sctp_peeloff.h>
#endif /* HAVE_SCTP_PEELOFF_SOCKOPT */
extern const struct sctp_cc_functions sctp_cc_functions[];
extern const struct sctp_ss_functions sctp_ss_functions[];
void
#if defined(__Userspace__)
sctp_init(uint16_t port,
int (*conn_output)(void *addr, void *buffer, size_t length, uint8_t tos, uint8_t set_df),
void (*debug_printf)(const char *format, ...), int start_threads)
#elif defined(__APPLE__) && (!defined(APPLE_LEOPARD) && !defined(APPLE_SNOWLEOPARD) &&!defined(APPLE_LION) && !defined(APPLE_MOUNTAINLION))
sctp_init(struct protosw *pp SCTP_UNUSED, struct domain *dp SCTP_UNUSED)
#else
sctp_init(void)
#endif
{
#if !defined(__Userspace__)
u_long sb_max_adj;
#else
init_random();
#endif
/* Initialize and modify the sysctled variables */
sctp_init_sysctls();
#if defined(__Userspace__)
SCTP_BASE_SYSCTL(sctp_udp_tunneling_port) = port;
#else
#if defined(__APPLE__) && !defined(__Userspace__)
sb_max_adj = (u_long)((u_quad_t) (sb_max) * MCLBYTES / (MSIZE + MCLBYTES));
SCTP_BASE_SYSCTL(sctp_sendspace) = sb_max_adj;
#else
if ((nmbclusters / 8) > SCTP_ASOC_MAX_CHUNKS_ON_QUEUE)
SCTP_BASE_SYSCTL(sctp_max_chunks_on_queue) = (nmbclusters / 8);
/*
* Allow a user to take no more than 1/2 the number of clusters or
* the SB_MAX, whichever is smaller, for the send window.
*/
sb_max_adj = (u_long)((u_quad_t) (SB_MAX) * MCLBYTES / (MSIZE + MCLBYTES));
SCTP_BASE_SYSCTL(sctp_sendspace) = min(sb_max_adj,
(((uint32_t)nmbclusters / 2) * SCTP_DEFAULT_MAXSEGMENT));
#endif
/*
* Now for the recv window, should we take the same amount? or
* should I do 1/2 the SB_MAX instead in the SB_MAX min above. For
* now I will just copy.
*/
SCTP_BASE_SYSCTL(sctp_recvspace) = SCTP_BASE_SYSCTL(sctp_sendspace);
#endif
SCTP_BASE_VAR(first_time) = 0;
SCTP_BASE_VAR(sctp_pcb_initialized) = 0;
#if defined(__Userspace__)
#if !defined(_WIN32)
#if defined(INET) || defined(INET6)
SCTP_BASE_VAR(userspace_route) = -1;
#endif
#endif
#ifdef INET
SCTP_BASE_VAR(userspace_rawsctp) = -1;
SCTP_BASE_VAR(userspace_udpsctp) = -1;
#endif
#ifdef INET6
SCTP_BASE_VAR(userspace_rawsctp6) = -1;
SCTP_BASE_VAR(userspace_udpsctp6) = -1;
#endif
SCTP_BASE_VAR(timer_thread_should_exit) = 0;
SCTP_BASE_VAR(conn_output) = conn_output;
SCTP_BASE_VAR(debug_printf) = debug_printf;
SCTP_BASE_VAR(crc32c_offloaded) = 0;
SCTP_BASE_VAR(iterator_thread_started) = 0;
SCTP_BASE_VAR(timer_thread_started) = 0;
#endif
#if defined(__Userspace__)
sctp_pcb_init(start_threads);
if (start_threads) {
sctp_start_timer_thread();
}
#else
sctp_pcb_init();
#endif
#if defined(SCTP_PACKET_LOGGING)
SCTP_BASE_VAR(packet_log_writers) = 0;
SCTP_BASE_VAR(packet_log_end) = 0;
memset(&SCTP_BASE_VAR(packet_log_buffer), 0, SCTP_PACKET_LOG_SIZE);
#endif
#if defined(__APPLE__) && !defined(__Userspace__)
SCTP_BASE_VAR(sctp_main_timer_ticks) = 0;
sctp_start_main_timer();
timeout(sctp_delayed_startup, NULL, 1);
#endif
#if defined(__FreeBSD__) && !defined(__Userspace__)
SCTP_BASE_VAR(eh_tag) = EVENTHANDLER_REGISTER(rt_addrmsg,
sctp_addr_change_event_handler, NULL, EVENTHANDLER_PRI_FIRST);
#endif
}
#if defined(__FreeBSD__) && !defined(__Userspace__)
#ifdef VIMAGE
static void
sctp_finish(void *unused __unused)
{
EVENTHANDLER_DEREGISTER(rt_addrmsg, SCTP_BASE_VAR(eh_tag));
sctp_pcb_finish();
}
VNET_SYSUNINIT(sctp, SI_SUB_PROTO_DOMAIN, SI_ORDER_FOURTH, sctp_finish, NULL);
#endif
#else
void
sctp_finish(void)
{
#if defined(__APPLE__) && !defined(__Userspace__)
untimeout(sctp_delayed_startup, NULL);
sctp_over_udp_stop();
sctp_address_monitor_stop();
sctp_stop_main_timer();
#endif
#if defined(__Userspace__)
#if defined(INET) || defined(INET6)
recv_thread_destroy();
#endif
sctp_stop_timer_thread();
#endif
sctp_pcb_finish();
#if defined(_WIN32) && !defined(__Userspace__)
sctp_finish_sysctls();
#endif
#if defined(__Userspace__)
finish_random();
#endif
}
#endif
void
sctp_pathmtu_adjustment(struct sctp_tcb *stcb, uint16_t nxtsz)
{
struct sctp_tmit_chunk *chk;
uint16_t overhead;
/* Adjust that too */
stcb->asoc.smallest_mtu = nxtsz;
/* now off to subtract IP_DF flag if needed */
overhead = IP_HDR_SIZE + sizeof(struct sctphdr);
if (sctp_auth_is_required_chunk(SCTP_DATA, stcb->asoc.peer_auth_chunks)) {
overhead += sctp_get_auth_chunk_len(stcb->asoc.peer_hmac_id);
}
TAILQ_FOREACH(chk, &stcb->asoc.send_queue, sctp_next) {
if ((chk->send_size + overhead) > nxtsz) {
chk->flags |= CHUNK_FLAGS_FRAGMENT_OK;
}
}
TAILQ_FOREACH(chk, &stcb->asoc.sent_queue, sctp_next) {
if ((chk->send_size + overhead) > nxtsz) {
/*
* For this guy we also mark for immediate resend
* since we sent to big of chunk
*/
chk->flags |= CHUNK_FLAGS_FRAGMENT_OK;
if (chk->sent < SCTP_DATAGRAM_RESEND) {
sctp_flight_size_decrease(chk);
sctp_total_flight_decrease(stcb, chk);
chk->sent = SCTP_DATAGRAM_RESEND;
sctp_ucount_incr(stcb->asoc.sent_queue_retran_cnt);
chk->rec.data.doing_fast_retransmit = 0;
if (SCTP_BASE_SYSCTL(sctp_logging_level) & SCTP_FLIGHT_LOGGING_ENABLE) {
sctp_misc_ints(SCTP_FLIGHT_LOG_DOWN_PMTU,
chk->whoTo->flight_size,
chk->book_size,
(uint32_t)(uintptr_t)chk->whoTo,
chk->rec.data.tsn);
}
/* Clear any time so NO RTT is being done */
if (chk->do_rtt == 1) {
chk->do_rtt = 0;
chk->whoTo->rto_needed = 1;
}
}
}
}
}
#ifdef INET
#if !defined(__Userspace__)
void
sctp_notify(struct sctp_inpcb *inp,
struct sctp_tcb *stcb,
struct sctp_nets *net,
uint8_t icmp_type,
uint8_t icmp_code,
uint16_t ip_len,
uint32_t next_mtu)
{
#if defined(__APPLE__) && !defined(__Userspace__)
struct socket *so;
#endif
int timer_stopped;
if (icmp_type != ICMP_UNREACH) {
/* We only care about unreachable */
SCTP_TCB_UNLOCK(stcb);
return;
}
if ((icmp_code == ICMP_UNREACH_NET) ||
(icmp_code == ICMP_UNREACH_HOST) ||
(icmp_code == ICMP_UNREACH_NET_UNKNOWN) ||
(icmp_code == ICMP_UNREACH_HOST_UNKNOWN) ||
(icmp_code == ICMP_UNREACH_ISOLATED) ||
(icmp_code == ICMP_UNREACH_NET_PROHIB) ||
(icmp_code == ICMP_UNREACH_HOST_PROHIB) ||
#if defined(__NetBSD__)
(icmp_code == ICMP_UNREACH_ADMIN_PROHIBIT)) {
#else
(icmp_code == ICMP_UNREACH_FILTER_PROHIB)) {
#endif
/* Mark the net unreachable. */
if (net->dest_state & SCTP_ADDR_REACHABLE) {
/* OK, that destination is NOT reachable. */
net->dest_state &= ~SCTP_ADDR_REACHABLE;
net->dest_state &= ~SCTP_ADDR_PF;
sctp_ulp_notify(SCTP_NOTIFY_INTERFACE_DOWN,
stcb, 0,
(void *)net, SCTP_SO_NOT_LOCKED);
}
SCTP_TCB_UNLOCK(stcb);
} else if ((icmp_code == ICMP_UNREACH_PROTOCOL) ||
(icmp_code == ICMP_UNREACH_PORT)) {
/* Treat it like an ABORT. */
sctp_abort_notification(stcb, 1, 0, NULL, SCTP_SO_NOT_LOCKED);
#if defined(__APPLE__) && !defined(__Userspace__)
so = SCTP_INP_SO(inp);
atomic_add_int(&stcb->asoc.refcnt, 1);
SCTP_TCB_UNLOCK(stcb);
SCTP_SOCKET_LOCK(so, 1);
SCTP_TCB_LOCK(stcb);
atomic_subtract_int(&stcb->asoc.refcnt, 1);
#endif
(void)sctp_free_assoc(inp, stcb, SCTP_NORMAL_PROC,
SCTP_FROM_SCTP_USRREQ + SCTP_LOC_2);
#if defined(__APPLE__) && !defined(__Userspace__)
SCTP_SOCKET_UNLOCK(so, 1);
/* SCTP_TCB_UNLOCK(stcb); MT: I think this is not needed.*/
#endif
/* no need to unlock here, since the TCB is gone */
} else if (icmp_code == ICMP_UNREACH_NEEDFRAG) {
if (net->dest_state & SCTP_ADDR_NO_PMTUD) {
SCTP_TCB_UNLOCK(stcb);
return;
}
/* Find the next (smaller) MTU */
if (next_mtu == 0) {
/*
* Old type router that does not tell us what the next
* MTU is.
* Rats we will have to guess (in a educated fashion
* of course).
*/
next_mtu = sctp_get_prev_mtu(ip_len);
}
/* Stop the PMTU timer. */
if (SCTP_OS_TIMER_PENDING(&net->pmtu_timer.timer)) {
timer_stopped = 1;
sctp_timer_stop(SCTP_TIMER_TYPE_PATHMTURAISE, inp, stcb, net,
SCTP_FROM_SCTP_USRREQ + SCTP_LOC_1);
} else {
timer_stopped = 0;
}
/* Update the path MTU. */
if (net->port) {
next_mtu -= sizeof(struct udphdr);
}
if (net->mtu > next_mtu) {
net->mtu = next_mtu;
#if defined(__FreeBSD__) && !defined(__Userspace__)
if (net->port) {
sctp_hc_set_mtu(&net->ro._l_addr, inp->fibnum, next_mtu + sizeof(struct udphdr));
} else {
sctp_hc_set_mtu(&net->ro._l_addr, inp->fibnum, next_mtu);
}
#endif
}
/* Update the association MTU */
if (stcb->asoc.smallest_mtu > next_mtu) {
sctp_pathmtu_adjustment(stcb, next_mtu);
}
/* Finally, start the PMTU timer if it was running before. */
if (timer_stopped) {
sctp_timer_start(SCTP_TIMER_TYPE_PATHMTURAISE, inp, stcb, net);
}
SCTP_TCB_UNLOCK(stcb);
} else {
SCTP_TCB_UNLOCK(stcb);
}
}
#endif
#if !defined(__Userspace__)
void
#if defined(__APPLE__) && !defined(APPLE_LEOPARD) && !defined(APPLE_SNOWLEOPARD) && !defined(APPLE_LION) && !defined(APPLE_MOUNTAINLION) && !defined(APPLE_ELCAPITAN)
sctp_ctlinput(int cmd, struct sockaddr *sa, void *vip, struct ifnet *ifp SCTP_UNUSED)
#else
sctp_ctlinput(int cmd, struct sockaddr *sa, void *vip)
#endif
{
#if defined(__FreeBSD__) && !defined(__Userspace__)
struct ip *outer_ip;
#endif
struct ip *inner_ip;
struct sctphdr *sh;
struct icmp *icmp;
struct sctp_inpcb *inp;
struct sctp_tcb *stcb;
struct sctp_nets *net;
#if defined(__FreeBSD__) && !defined(__Userspace__)
struct sctp_init_chunk *ch;
#endif
struct sockaddr_in src, dst;
if (sa->sa_family != AF_INET ||
((struct sockaddr_in *)sa)->sin_addr.s_addr == INADDR_ANY) {
return;
}
if (PRC_IS_REDIRECT(cmd)) {
vip = NULL;
} else if ((unsigned)cmd >= PRC_NCMDS || inetctlerrmap[cmd] == 0) {
return;
}
if (vip != NULL) {
inner_ip = (struct ip *)vip;
icmp = (struct icmp *)((caddr_t)inner_ip -
(sizeof(struct icmp) - sizeof(struct ip)));
#if defined(__FreeBSD__) && !defined(__Userspace__)
outer_ip = (struct ip *)((caddr_t)icmp - sizeof(struct ip));
#endif
sh = (struct sctphdr *)((caddr_t)inner_ip + (inner_ip->ip_hl << 2));
memset(&src, 0, sizeof(struct sockaddr_in));
src.sin_family = AF_INET;
#ifdef HAVE_SIN_LEN
src.sin_len = sizeof(struct sockaddr_in);
#endif
src.sin_port = sh->src_port;
src.sin_addr = inner_ip->ip_src;
memset(&dst, 0, sizeof(struct sockaddr_in));
dst.sin_family = AF_INET;
#ifdef HAVE_SIN_LEN
dst.sin_len = sizeof(struct sockaddr_in);
#endif
dst.sin_port = sh->dest_port;
dst.sin_addr = inner_ip->ip_dst;
/*
* 'dst' holds the dest of the packet that failed to be sent.
* 'src' holds our local endpoint address. Thus we reverse
* the dst and the src in the lookup.
*/
inp = NULL;
net = NULL;
stcb = sctp_findassociation_addr_sa((struct sockaddr *)&dst,
(struct sockaddr *)&src,
&inp, &net, 1,
SCTP_DEFAULT_VRFID);
if ((stcb != NULL) &&
(net != NULL) &&
(inp != NULL)) {
/* Check the verification tag */
if (ntohl(sh->v_tag) != 0) {
/*
* This must be the verification tag used for
* sending out packets. We don't consider
* packets reflecting the verification tag.
*/
if (ntohl(sh->v_tag) != stcb->asoc.peer_vtag) {
SCTP_TCB_UNLOCK(stcb);
return;
}
} else {
#if defined(__FreeBSD__) && !defined(__Userspace__)
if (ntohs(outer_ip->ip_len) >=
sizeof(struct ip) +
8 + (inner_ip->ip_hl << 2) + 20) {
/*
* In this case we can check if we
* got an INIT chunk and if the
* initiate tag matches.
*/
ch = (struct sctp_init_chunk *)(sh + 1);
if ((ch->ch.chunk_type != SCTP_INITIATION) ||
(ntohl(ch->init.initiate_tag) != stcb->asoc.my_vtag)) {
SCTP_TCB_UNLOCK(stcb);
return;
}
} else {
SCTP_TCB_UNLOCK(stcb);
return;
}
#else
SCTP_TCB_UNLOCK(stcb);
return;
#endif
}
sctp_notify(inp, stcb, net,
icmp->icmp_type,
icmp->icmp_code,
#if defined(__FreeBSD__) && !defined(__Userspace__)
ntohs(inner_ip->ip_len),
#else
inner_ip->ip_len,
#endif
(uint32_t)ntohs(icmp->icmp_nextmtu));
#if defined(__Userspace__)
if (!(stcb->sctp_ep->sctp_flags & SCTP_PCB_FLAGS_SOCKET_GONE) &&
(stcb->sctp_socket != NULL)) {
struct socket *upcall_socket;
upcall_socket = stcb->sctp_socket;
SOCK_LOCK(upcall_socket);
soref(upcall_socket);
SOCK_UNLOCK(upcall_socket);
if ((upcall_socket->so_upcall != NULL) &&
(upcall_socket->so_error != 0)) {
(*upcall_socket->so_upcall)(upcall_socket, upcall_socket->so_upcallarg, M_NOWAIT);
}
ACCEPT_LOCK();
SOCK_LOCK(upcall_socket);
sorele(upcall_socket);
}
#endif
} else {
if ((stcb == NULL) && (inp != NULL)) {
/* reduce ref-count */
SCTP_INP_WLOCK(inp);
SCTP_INP_DECR_REF(inp);
SCTP_INP_WUNLOCK(inp);
}
if (stcb) {
SCTP_TCB_UNLOCK(stcb);
}
}
}
return;
}
#endif
#endif
#if defined(__FreeBSD__) && !defined(__Userspace__)
static int
sctp_getcred(SYSCTL_HANDLER_ARGS)
{
struct xucred xuc;
struct sockaddr_in addrs[2];
struct sctp_inpcb *inp;
struct sctp_nets *net;
struct sctp_tcb *stcb;
int error;
uint32_t vrf_id;
/* FIX, for non-bsd is this right? */
vrf_id = SCTP_DEFAULT_VRFID;
error = priv_check(req->td, PRIV_NETINET_GETCRED);
if (error)
return (error);
error = SYSCTL_IN(req, addrs, sizeof(addrs));
if (error)
return (error);
stcb = sctp_findassociation_addr_sa(sintosa(&addrs[1]),
sintosa(&addrs[0]),
&inp, &net, 1, vrf_id);
if (stcb == NULL || inp == NULL || inp->sctp_socket == NULL) {
if ((inp != NULL) && (stcb == NULL)) {
/* reduce ref-count */
SCTP_INP_WLOCK(inp);
SCTP_INP_DECR_REF(inp);
goto cred_can_cont;
}
SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOENT);
error = ENOENT;
goto out;
}
SCTP_TCB_UNLOCK(stcb);
/* We use the write lock here, only
* since in the error leg we need it.
* If we used RLOCK, then we would have
* to wlock/decr/unlock/rlock. Which
* in theory could create a hole. Better
* to use higher wlock.
*/
SCTP_INP_WLOCK(inp);
cred_can_cont:
error = cr_canseesocket(req->td->td_ucred, inp->sctp_socket);
if (error) {
SCTP_INP_WUNLOCK(inp);
goto out;
}
cru2x(inp->sctp_socket->so_cred, &xuc);
SCTP_INP_WUNLOCK(inp);
error = SYSCTL_OUT(req, &xuc, sizeof(struct xucred));
out:
return (error);
}
SYSCTL_PROC(_net_inet_sctp, OID_AUTO, getcred,
CTLTYPE_OPAQUE | CTLFLAG_RW | CTLFLAG_NEEDGIANT,
0, 0, sctp_getcred, "S,ucred",
"Get the ucred of a SCTP connection");
#endif
#ifdef INET
#if defined(_WIN32) || defined(__Userspace__)
int
#elif defined(__FreeBSD__)
static void
#else
static int
#endif
sctp_abort(struct socket *so)
{
#if defined(__FreeBSD__) && !defined(__Userspace__)
struct epoch_tracker et;
#endif
struct sctp_inpcb *inp;
uint32_t flags;
inp = (struct sctp_inpcb *)so->so_pcb;
if (inp == NULL) {
#if defined(__FreeBSD__) && !defined(__Userspace__)
return;
#else
SCTP_LTRACE_ERR_RET(NULL, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
return (EINVAL);
#endif
}
#if defined(__FreeBSD__) && !defined(__Userspace__)
NET_EPOCH_ENTER(et);
#endif
sctp_must_try_again:
flags = inp->sctp_flags;
#ifdef SCTP_LOG_CLOSING
sctp_log_closing(inp, NULL, 17);
#endif
if (((flags & SCTP_PCB_FLAGS_SOCKET_GONE) == 0) &&
(atomic_cmpset_int(&inp->sctp_flags, flags, (flags | SCTP_PCB_FLAGS_SOCKET_GONE | SCTP_PCB_FLAGS_CLOSE_IP)))) {
#ifdef SCTP_LOG_CLOSING
sctp_log_closing(inp, NULL, 16);
#endif
sctp_inpcb_free(inp, SCTP_FREE_SHOULD_USE_ABORT,
SCTP_CALLED_AFTER_CMPSET_OFCLOSE);
SOCK_LOCK(so);
SCTP_SB_CLEAR(so->so_snd);
/* same for the rcv ones, they are only
* here for the accounting/select.
*/
SCTP_SB_CLEAR(so->so_rcv);
#if defined(__APPLE__) && !defined(__Userspace__)
so->so_usecount--;
#else
/* Now null out the reference, we are completely detached. */
so->so_pcb = NULL;
#endif
SOCK_UNLOCK(so);
} else {
flags = inp->sctp_flags;
if ((flags & SCTP_PCB_FLAGS_SOCKET_GONE) == 0) {
goto sctp_must_try_again;
}
}
#if defined(__FreeBSD__) && !defined(__Userspace__)
NET_EPOCH_EXIT(et);
return;
#else
return (0);
#endif
}
#if defined(__Userspace__)
int
#else
static int
#endif
#if defined(__Userspace__)
sctp_attach(struct socket *so, int proto SCTP_UNUSED, uint32_t vrf_id)
#elif defined(__FreeBSD__)
sctp_attach(struct socket *so, int proto SCTP_UNUSED, struct thread *p SCTP_UNUSED)
#elif defined(_WIN32)
sctp_attach(struct socket *so, int proto SCTP_UNUSED, PKTHREAD p SCTP_UNUSED)
#else
sctp_attach(struct socket *so, int proto SCTP_UNUSED, struct proc *p SCTP_UNUSED)
#endif
{
struct sctp_inpcb *inp;
struct inpcb *ip_inp;
int error;
#if !defined(__Userspace__)
uint32_t vrf_id = SCTP_DEFAULT_VRFID;
#endif
inp = (struct sctp_inpcb *)so->so_pcb;
if (inp != NULL) {
SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
return (EINVAL);
}
if (so->so_snd.sb_hiwat == 0 || so->so_rcv.sb_hiwat == 0) {
error = SCTP_SORESERVE(so, SCTP_BASE_SYSCTL(sctp_sendspace), SCTP_BASE_SYSCTL(sctp_recvspace));
if (error) {
return (error);
}
}
error = sctp_inpcb_alloc(so, vrf_id);
if (error) {
return (error);
}
inp = (struct sctp_inpcb *)so->so_pcb;
SCTP_INP_WLOCK(inp);
inp->sctp_flags &= ~SCTP_PCB_FLAGS_BOUND_V6; /* I'm not v6! */
ip_inp = &inp->ip_inp.inp;
ip_inp->inp_vflag |= INP_IPV4;
ip_inp->inp_ip_ttl = MODULE_GLOBAL(ip_defttl);
SCTP_INP_WUNLOCK(inp);
return (0);
}
#if defined(__Userspace__)
int
sctp_bind(struct socket *so, struct sockaddr *addr) {
void *p = NULL;
#elif defined(__FreeBSD__)
static int
sctp_bind(struct socket *so, struct sockaddr *addr, struct thread *p)
{
#elif defined(__APPLE__)
static int
sctp_bind(struct socket *so, struct sockaddr *addr, struct proc *p) {
#elif defined(_WIN32)
static int
sctp_bind(struct socket *so, struct sockaddr *addr, PKTHREAD p) {
#else
static int
sctp_bind(struct socket *so, struct mbuf *nam, struct proc *p)
{
struct sockaddr *addr = nam ? mtod(nam, struct sockaddr *): NULL;
#endif
struct sctp_inpcb *inp;
inp = (struct sctp_inpcb *)so->so_pcb;
if (inp == NULL) {
SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
return (EINVAL);
}
if (addr != NULL) {
#ifdef HAVE_SA_LEN
if ((addr->sa_family != AF_INET) ||
(addr->sa_len != sizeof(struct sockaddr_in))) {
#else
if (addr->sa_family != AF_INET) {
#endif
SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
return (EINVAL);
}
}
return (sctp_inpcb_bind(so, addr, NULL, p));
}
#endif
#if defined(__Userspace__)
int
sctpconn_attach(struct socket *so, int proto SCTP_UNUSED, uint32_t vrf_id)
{
struct sctp_inpcb *inp;
struct inpcb *ip_inp;
int error;
inp = (struct sctp_inpcb *)so->so_pcb;
if (inp != NULL) {
SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
return (EINVAL);
}
if (so->so_snd.sb_hiwat == 0 || so->so_rcv.sb_hiwat == 0) {
error = SCTP_SORESERVE(so, SCTP_BASE_SYSCTL(sctp_sendspace), SCTP_BASE_SYSCTL(sctp_recvspace));
if (error) {
return (error);
}
}
error = sctp_inpcb_alloc(so, vrf_id);
if (error) {
return (error);
}
inp = (struct sctp_inpcb *)so->so_pcb;
SCTP_INP_WLOCK(inp);
inp->sctp_flags &= ~SCTP_PCB_FLAGS_BOUND_V6;
inp->sctp_flags |= SCTP_PCB_FLAGS_BOUND_CONN;
ip_inp = &inp->ip_inp.inp;
ip_inp->inp_vflag |= INP_CONN;
ip_inp->inp_ip_ttl = MODULE_GLOBAL(ip_defttl);
SCTP_INP_WUNLOCK(inp);
return (0);
}
int
sctpconn_bind(struct socket *so, struct sockaddr *addr)
{
struct sctp_inpcb *inp;
inp = (struct sctp_inpcb *)so->so_pcb;
if (inp == NULL) {
SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
return (EINVAL);
}
if (addr != NULL) {
#ifdef HAVE_SA_LEN
if ((addr->sa_family != AF_CONN) ||
(addr->sa_len != sizeof(struct sockaddr_conn))) {
#else
if (addr->sa_family != AF_CONN) {
#endif
SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
return (EINVAL);
}
}
return (sctp_inpcb_bind(so, addr, NULL, NULL));
}
#endif
#if defined(__FreeBSD__) || defined(_WIN32) || defined(__Userspace__)
void
sctp_close(struct socket *so)
{
#if defined(__FreeBSD__) && !defined(__Userspace__)
struct epoch_tracker et;
#endif
struct sctp_inpcb *inp;
uint32_t flags;
inp = (struct sctp_inpcb *)so->so_pcb;
if (inp == NULL)
return;
/* Inform all the lower layer assoc that we
* are done.
*/
#if defined(__FreeBSD__) && !defined(__Userspace__)
NET_EPOCH_ENTER(et);
#endif
sctp_must_try_again:
flags = inp->sctp_flags;
#ifdef SCTP_LOG_CLOSING
sctp_log_closing(inp, NULL, 17);
#endif
if (((flags & SCTP_PCB_FLAGS_SOCKET_GONE) == 0) &&
(atomic_cmpset_int(&inp->sctp_flags, flags, (flags | SCTP_PCB_FLAGS_SOCKET_GONE | SCTP_PCB_FLAGS_CLOSE_IP)))) {
#if defined(__Userspace__)
if (((so->so_options & SCTP_SO_LINGER) && (so->so_linger == 0)) ||
(so->so_rcv.sb_cc > 0)) {
#else
if (((so->so_options & SO_LINGER) && (so->so_linger == 0)) ||
(so->so_rcv.sb_cc > 0)) {
#endif
#ifdef SCTP_LOG_CLOSING
sctp_log_closing(inp, NULL, 13);
#endif
sctp_inpcb_free(inp, SCTP_FREE_SHOULD_USE_ABORT,
SCTP_CALLED_AFTER_CMPSET_OFCLOSE);
} else {
#ifdef SCTP_LOG_CLOSING
sctp_log_closing(inp, NULL, 14);
#endif
sctp_inpcb_free(inp, SCTP_FREE_SHOULD_USE_GRACEFUL_CLOSE,
SCTP_CALLED_AFTER_CMPSET_OFCLOSE);
}
/* The socket is now detached, no matter what
* the state of the SCTP association.
*/
SOCK_LOCK(so);
SCTP_SB_CLEAR(so->so_snd);
/* same for the rcv ones, they are only
* here for the accounting/select.
*/
SCTP_SB_CLEAR(so->so_rcv);
#if !(defined(__APPLE__) && !defined(__Userspace__))
/* Now null out the reference, we are completely detached. */
so->so_pcb = NULL;
#endif
SOCK_UNLOCK(so);
} else {
flags = inp->sctp_flags;
if ((flags & SCTP_PCB_FLAGS_SOCKET_GONE) == 0) {
goto sctp_must_try_again;
}
}
#if defined(__FreeBSD__) && !defined(__Userspace__)
NET_EPOCH_EXIT(et);
#endif
return;
}
#else
int
sctp_detach(struct socket *so)
{
struct sctp_inpcb *inp;
uint32_t flags;
inp = (struct sctp_inpcb *)so->so_pcb;
if (inp == NULL) {
#if defined(__FreeBSD__) && !defined(__Userspace__)
return;
#else
SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
return (EINVAL);
#endif
}
sctp_must_try_again:
flags = inp->sctp_flags;
#ifdef SCTP_LOG_CLOSING
sctp_log_closing(inp, NULL, 17);
#endif
if (((flags & SCTP_PCB_FLAGS_SOCKET_GONE) == 0) &&
(atomic_cmpset_int(&inp->sctp_flags, flags, (flags | SCTP_PCB_FLAGS_SOCKET_GONE | SCTP_PCB_FLAGS_CLOSE_IP)))) {
#if defined(__Userspace__)
if (((so->so_options & SCTP_SO_LINGER) && (so->so_linger == 0)) ||
(so->so_rcv.sb_cc > 0)) {
#else
if (((so->so_options & SO_LINGER) && (so->so_linger == 0)) ||
(so->so_rcv.sb_cc > 0)) {
#endif
#ifdef SCTP_LOG_CLOSING
sctp_log_closing(inp, NULL, 13);
#endif
sctp_inpcb_free(inp, SCTP_FREE_SHOULD_USE_ABORT,
SCTP_CALLED_AFTER_CMPSET_OFCLOSE);
} else {
#ifdef SCTP_LOG_CLOSING
sctp_log_closing(inp, NULL, 13);
#endif
sctp_inpcb_free(inp, SCTP_FREE_SHOULD_USE_GRACEFUL_CLOSE,
SCTP_CALLED_AFTER_CMPSET_OFCLOSE);
}
/* The socket is now detached, no matter what
* the state of the SCTP association.
*/
SCTP_SB_CLEAR(so->so_snd);
/* same for the rcv ones, they are only
* here for the accounting/select.
*/
SCTP_SB_CLEAR(so->so_rcv);
#if !(defined(__APPLE__) && !defined(__Userspace__))
/* Now disconnect */
so->so_pcb = NULL;
#endif
} else {
flags = inp->sctp_flags;
if ((flags & SCTP_PCB_FLAGS_SOCKET_GONE) == 0) {
goto sctp_must_try_again;
}
}
#if defined(__FreeBSD__) && !defined(__Userspace__)
return;
#else
return (0);
#endif
}
#endif
#if defined(__Userspace__)
/* __Userspace__ is not calling sctp_sendm */
#endif
#if !(defined(_WIN32) && !defined(__Userspace__))
int
#if defined(__FreeBSD__) && !defined(__Userspace__)
sctp_sendm(struct socket *so, int flags, struct mbuf *m, struct sockaddr *addr,
struct mbuf *control, struct thread *p);
#else
sctp_sendm(struct socket *so, int flags, struct mbuf *m, struct sockaddr *addr,
struct mbuf *control, struct proc *p);
#endif
int
#if defined(__FreeBSD__) && !defined(__Userspace__)
sctp_sendm(struct socket *so, int flags, struct mbuf *m, struct sockaddr *addr,
struct mbuf *control, struct thread *p)
{
#else
sctp_sendm(struct socket *so, int flags, struct mbuf *m, struct sockaddr *addr,
struct mbuf *control, struct proc *p)
{
#endif
struct sctp_inpcb *inp;
int error;
inp = (struct sctp_inpcb *)so->so_pcb;
if (inp == NULL) {
if (control) {
sctp_m_freem(control);
control = NULL;
}
SCTP_LTRACE_ERR_RET_PKT(m, inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
sctp_m_freem(m);
return (EINVAL);
}
/* Got to have an to address if we are NOT a connected socket */
if ((addr == NULL) &&
((inp->sctp_flags & SCTP_PCB_FLAGS_CONNECTED) ||
(inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE))) {
goto connected_type;
} else if (addr == NULL) {
SCTP_LTRACE_ERR_RET_PKT(m, inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EDESTADDRREQ);
error = EDESTADDRREQ;
sctp_m_freem(m);
if (control) {
sctp_m_freem(control);
control = NULL;
}
return (error);
}
#ifdef INET6
if (addr->sa_family != AF_INET) {
/* must be a v4 address! */
SCTP_LTRACE_ERR_RET_PKT(m, inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EDESTADDRREQ);
sctp_m_freem(m);
if (control) {
sctp_m_freem(control);
control = NULL;
}
error = EDESTADDRREQ;
return (error);
}
#endif /* INET6 */
connected_type:
/* now what about control */
if (control) {
if (inp->control) {
sctp_m_freem(inp->control);
inp->control = NULL;
}
inp->control = control;
}
/* Place the data */
if (inp->pkt) {
SCTP_BUF_NEXT(inp->pkt_last) = m;
inp->pkt_last = m;
} else {
inp->pkt_last = inp->pkt = m;
}
if (
#if (defined(__FreeBSD__) || defined(__APPLE__)) && !defined(__Userspace__)
/* FreeBSD uses a flag passed */
((flags & PRUS_MORETOCOME) == 0)
#else
1 /* Open BSD does not have any "more to come"
* indication */
#endif
) {
/*
* note with the current version this code will only be used
* by OpenBSD-- NetBSD, FreeBSD, and MacOS have methods for
* re-defining sosend to use the sctp_sosend. One can
* optionally switch back to this code (by changing back the
* definitions) but this is not advisable. This code is used
* by FreeBSD when sending a file with sendfile() though.
*/
#if defined(__FreeBSD__) && !defined(__Userspace__)
struct epoch_tracker et;
#endif
int ret;
#if defined(__FreeBSD__) && !defined(__Userspace__)
NET_EPOCH_ENTER(et);
#endif
ret = sctp_output(inp, inp->pkt, addr, inp->control, p, flags);
#if defined(__FreeBSD__) && !defined(__Userspace__)
NET_EPOCH_EXIT(et);
#endif
inp->pkt = NULL;
inp->control = NULL;
return (ret);
} else {
return (0);
}
}
#endif
int
sctp_disconnect(struct socket *so)
{
struct sctp_inpcb *inp;
inp = (struct sctp_inpcb *)so->so_pcb;
if (inp == NULL) {
SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOTCONN);
return (ENOTCONN);
}
SCTP_INP_RLOCK(inp);
if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
(inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL)) {
if (LIST_EMPTY(&inp->sctp_asoc_list)) {
/* No connection */
SCTP_INP_RUNLOCK(inp);
return (0);
} else {
#if defined(__FreeBSD__) && !defined(__Userspace__)
struct epoch_tracker et;
#endif
struct sctp_association *asoc;
struct sctp_tcb *stcb;
stcb = LIST_FIRST(&inp->sctp_asoc_list);
if (stcb == NULL) {
SCTP_INP_RUNLOCK(inp);
SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
return (EINVAL);
}
SCTP_TCB_LOCK(stcb);
asoc = &stcb->asoc;
if (stcb->asoc.state & SCTP_STATE_ABOUT_TO_BE_FREED) {
/* We are about to be freed, out of here */
SCTP_TCB_UNLOCK(stcb);
SCTP_INP_RUNLOCK(inp);
return (0);
}
#if defined(__FreeBSD__) && !defined(__Userspace__)
NET_EPOCH_ENTER(et);
#endif
#if defined(__Userspace__)
if (((so->so_options & SCTP_SO_LINGER) &&
(so->so_linger == 0)) ||
(so->so_rcv.sb_cc > 0)) {
#else
if (((so->so_options & SO_LINGER) &&
(so->so_linger == 0)) ||
(so->so_rcv.sb_cc > 0)) {
#endif
if (SCTP_GET_STATE(stcb) != SCTP_STATE_COOKIE_WAIT) {
/* Left with Data unread */
struct mbuf *op_err;
op_err = sctp_generate_cause(SCTP_CAUSE_USER_INITIATED_ABT, "");
sctp_send_abort_tcb(stcb, op_err, SCTP_SO_LOCKED);
SCTP_STAT_INCR_COUNTER32(sctps_aborted);
}
SCTP_INP_RUNLOCK(inp);
if ((SCTP_GET_STATE(stcb) == SCTP_STATE_OPEN) ||
(SCTP_GET_STATE(stcb) == SCTP_STATE_SHUTDOWN_RECEIVED)) {
SCTP_STAT_DECR_GAUGE32(sctps_currestab);
}
(void)sctp_free_assoc(inp, stcb, SCTP_NORMAL_PROC,
SCTP_FROM_SCTP_USRREQ + SCTP_LOC_3);
/* No unlock tcb assoc is gone */
#if defined(__FreeBSD__) && !defined(__Userspace__)
NET_EPOCH_EXIT(et);
#endif
return (0);
}
if (TAILQ_EMPTY(&asoc->send_queue) &&
TAILQ_EMPTY(&asoc->sent_queue) &&
(asoc->stream_queue_cnt == 0)) {
/* there is nothing queued to send, so done */
if ((*asoc->ss_functions.sctp_ss_is_user_msgs_incomplete)(stcb, asoc)) {
goto abort_anyway;
}
if ((SCTP_GET_STATE(stcb) != SCTP_STATE_SHUTDOWN_SENT) &&
(SCTP_GET_STATE(stcb) != SCTP_STATE_SHUTDOWN_ACK_SENT)) {
/* only send SHUTDOWN 1st time thru */
struct sctp_nets *netp;
if ((SCTP_GET_STATE(stcb) == SCTP_STATE_OPEN) ||
(SCTP_GET_STATE(stcb) == SCTP_STATE_SHUTDOWN_RECEIVED)) {
SCTP_STAT_DECR_GAUGE32(sctps_currestab);
}
SCTP_SET_STATE(stcb, SCTP_STATE_SHUTDOWN_SENT);
sctp_stop_timers_for_shutdown(stcb);
if (stcb->asoc.alternate) {
netp = stcb->asoc.alternate;
} else {
netp = stcb->asoc.primary_destination;
}
sctp_send_shutdown(stcb,netp);
sctp_timer_start(SCTP_TIMER_TYPE_SHUTDOWN,
stcb->sctp_ep, stcb, netp);
sctp_timer_start(SCTP_TIMER_TYPE_SHUTDOWNGUARD,
stcb->sctp_ep, stcb, NULL);
sctp_chunk_output(stcb->sctp_ep, stcb, SCTP_OUTPUT_FROM_T3, SCTP_SO_LOCKED);
}
} else {
/*
* we still got (or just got) data to send,
* so set SHUTDOWN_PENDING
*/
/*
* XXX sockets draft says that SCTP_EOF
* should be sent with no data. currently,
* we will allow user data to be sent first
* and move to SHUTDOWN-PENDING
*/
SCTP_ADD_SUBSTATE(stcb, SCTP_STATE_SHUTDOWN_PENDING);
sctp_timer_start(SCTP_TIMER_TYPE_SHUTDOWNGUARD, stcb->sctp_ep, stcb, NULL);
if ((*asoc->ss_functions.sctp_ss_is_user_msgs_incomplete)(stcb, asoc)) {
SCTP_ADD_SUBSTATE(stcb, SCTP_STATE_PARTIAL_MSG_LEFT);
}
if (TAILQ_EMPTY(&asoc->send_queue) &&
TAILQ_EMPTY(&asoc->sent_queue) &&
(asoc->state & SCTP_STATE_PARTIAL_MSG_LEFT)) {
struct mbuf *op_err;
abort_anyway:
op_err = sctp_generate_cause(SCTP_CAUSE_USER_INITIATED_ABT, "");
stcb->sctp_ep->last_abort_code = SCTP_FROM_SCTP_USRREQ + SCTP_LOC_4;
sctp_send_abort_tcb(stcb, op_err, SCTP_SO_LOCKED);
SCTP_STAT_INCR_COUNTER32(sctps_aborted);
if ((SCTP_GET_STATE(stcb) == SCTP_STATE_OPEN) ||
(SCTP_GET_STATE(stcb) == SCTP_STATE_SHUTDOWN_RECEIVED)) {
SCTP_STAT_DECR_GAUGE32(sctps_currestab);
}
SCTP_INP_RUNLOCK(inp);
(void)sctp_free_assoc(inp, stcb, SCTP_NORMAL_PROC,
SCTP_FROM_SCTP_USRREQ + SCTP_LOC_5);
#if defined(__FreeBSD__) && !defined(__Userspace__)
NET_EPOCH_EXIT(et);
#endif
return (0);
} else {
sctp_chunk_output(inp, stcb, SCTP_OUTPUT_FROM_CLOSING, SCTP_SO_LOCKED);
}
}
soisdisconnecting(so);
#if defined(__FreeBSD__) && !defined(__Userspace__)
NET_EPOCH_EXIT(et);
#endif
SCTP_TCB_UNLOCK(stcb);
SCTP_INP_RUNLOCK(inp);
return (0);
}
/* not reached */
} else {
/* UDP model does not support this */
SCTP_INP_RUNLOCK(inp);
SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EOPNOTSUPP);
return (EOPNOTSUPP);
}
}
#if defined(__FreeBSD__) || defined(_WIN32) || defined(__Userspace__)
int
sctp_flush(struct socket *so, int how)
{
/*
* We will just clear out the values and let
* subsequent close clear out the data, if any.
* Note if the user did a shutdown(SHUT_RD) they
* will not be able to read the data, the socket
* will block that from happening.
*/
struct sctp_inpcb *inp;
inp = (struct sctp_inpcb *)so->so_pcb;
if (inp == NULL) {
SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
return (EINVAL);
}
SCTP_INP_RLOCK(inp);
/* For the 1 to many model this does nothing */
if (inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) {
SCTP_INP_RUNLOCK(inp);
return (0);
}
SCTP_INP_RUNLOCK(inp);
if ((how == PRU_FLUSH_RD) || (how == PRU_FLUSH_RDWR)) {
/* First make sure the sb will be happy, we don't
* use these except maybe the count
*/
SCTP_INP_WLOCK(inp);
SCTP_INP_READ_LOCK(inp);
inp->sctp_flags |= SCTP_PCB_FLAGS_SOCKET_CANT_READ;
SCTP_INP_READ_UNLOCK(inp);
SCTP_INP_WUNLOCK(inp);
so->so_rcv.sb_cc = 0;
so->so_rcv.sb_mbcnt = 0;
so->so_rcv.sb_mb = NULL;
}
if ((how == PRU_FLUSH_WR) || (how == PRU_FLUSH_RDWR)) {
/* First make sure the sb will be happy, we don't
* use these except maybe the count
*/
so->so_snd.sb_cc = 0;
so->so_snd.sb_mbcnt = 0;
so->so_snd.sb_mb = NULL;
}
return (0);
}
#endif
int
sctp_shutdown(struct socket *so)
{
struct sctp_inpcb *inp;
inp = (struct sctp_inpcb *)so->so_pcb;
if (inp == NULL) {
SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
return (EINVAL);
}
SCTP_INP_RLOCK(inp);
/* For UDP model this is a invalid call */
if (!((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
(inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL))) {
/* Restore the flags that the soshutdown took away. */
#if (defined(__FreeBSD__) || defined(_WIN32)) && !defined(__Userspace__)
SOCKBUF_LOCK(&so->so_rcv);
so->so_rcv.sb_state &= ~SBS_CANTRCVMORE;
SOCKBUF_UNLOCK(&so->so_rcv);
#else
SOCK_LOCK(so);
so->so_state &= ~SS_CANTRCVMORE;
SOCK_UNLOCK(so);
#endif
/* This proc will wakeup for read and do nothing (I hope) */
SCTP_INP_RUNLOCK(inp);
SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EOPNOTSUPP);
return (EOPNOTSUPP);
} else {
/*
* Ok, if we reach here its the TCP model and it is either
* a SHUT_WR or SHUT_RDWR.
* This means we put the shutdown flag against it.
*/
#if defined(__FreeBSD__) && !defined(__Userspace__)
struct epoch_tracker et;
#endif
struct sctp_tcb *stcb;
struct sctp_association *asoc;
struct sctp_nets *netp;
if ((so->so_state &
(SS_ISCONNECTED|SS_ISCONNECTING|SS_ISDISCONNECTING)) == 0) {
SCTP_INP_RUNLOCK(inp);
return (ENOTCONN);
}
socantsendmore(so);
stcb = LIST_FIRST(&inp->sctp_asoc_list);
if (stcb == NULL) {
/*
* Ok, we hit the case that the shutdown call was
* made after an abort or something. Nothing to do
* now.
*/
SCTP_INP_RUNLOCK(inp);
return (0);
}
SCTP_TCB_LOCK(stcb);
asoc = &stcb->asoc;
if (asoc->state & SCTP_STATE_ABOUT_TO_BE_FREED) {
SCTP_TCB_UNLOCK(stcb);
SCTP_INP_RUNLOCK(inp);
return (0);
}
if ((SCTP_GET_STATE(stcb) != SCTP_STATE_COOKIE_WAIT) &&
(SCTP_GET_STATE(stcb) != SCTP_STATE_COOKIE_ECHOED) &&
(SCTP_GET_STATE(stcb) != SCTP_STATE_OPEN)) {
/* If we are not in or before ESTABLISHED, there is
* no protocol action required.
*/
SCTP_TCB_UNLOCK(stcb);
SCTP_INP_RUNLOCK(inp);
return (0);
}
#if defined(__FreeBSD__) && !defined(__Userspace__)
NET_EPOCH_ENTER(et);
#endif
if (stcb->asoc.alternate) {
netp = stcb->asoc.alternate;
} else {
netp = stcb->asoc.primary_destination;
}
if ((SCTP_GET_STATE(stcb) == SCTP_STATE_OPEN) &&
TAILQ_EMPTY(&asoc->send_queue) &&
TAILQ_EMPTY(&asoc->sent_queue) &&
(asoc->stream_queue_cnt == 0)) {
if ((*asoc->ss_functions.sctp_ss_is_user_msgs_incomplete)(stcb, asoc)) {
goto abort_anyway;
}
/* there is nothing queued to send, so I'm done... */
SCTP_STAT_DECR_GAUGE32(sctps_currestab);
SCTP_SET_STATE(stcb, SCTP_STATE_SHUTDOWN_SENT);
sctp_stop_timers_for_shutdown(stcb);
sctp_send_shutdown(stcb, netp);
sctp_timer_start(SCTP_TIMER_TYPE_SHUTDOWN,
stcb->sctp_ep, stcb, netp);
} else {
/*
* We still got (or just got) data to send, so set
* SHUTDOWN_PENDING.
*/
SCTP_ADD_SUBSTATE(stcb, SCTP_STATE_SHUTDOWN_PENDING);
if ((*asoc->ss_functions.sctp_ss_is_user_msgs_incomplete)(stcb, asoc)) {
SCTP_ADD_SUBSTATE(stcb, SCTP_STATE_PARTIAL_MSG_LEFT);
}
if (TAILQ_EMPTY(&asoc->send_queue) &&
TAILQ_EMPTY(&asoc->sent_queue) &&
(asoc->state & SCTP_STATE_PARTIAL_MSG_LEFT)) {
struct mbuf *op_err;
abort_anyway:
op_err = sctp_generate_cause(SCTP_CAUSE_USER_INITIATED_ABT, "");
stcb->sctp_ep->last_abort_code = SCTP_FROM_SCTP_USRREQ + SCTP_LOC_6;
SCTP_INP_RUNLOCK(inp);
sctp_abort_an_association(stcb->sctp_ep, stcb,
op_err, SCTP_SO_LOCKED);
#if defined(__FreeBSD__) && !defined(__Userspace__)
NET_EPOCH_EXIT(et);
#endif
return (0);
}
}
sctp_timer_start(SCTP_TIMER_TYPE_SHUTDOWNGUARD, stcb->sctp_ep, stcb, NULL);
/* XXX: Why do this in the case where we have still data queued? */
sctp_chunk_output(inp, stcb, SCTP_OUTPUT_FROM_CLOSING, SCTP_SO_LOCKED);
SCTP_TCB_UNLOCK(stcb);
SCTP_INP_RUNLOCK(inp);
#if defined(__FreeBSD__) && !defined(__Userspace__)
NET_EPOCH_EXIT(et);
#endif
return (0);
}
}
/*
* copies a "user" presentable address and removes embedded scope, etc.
* returns 0 on success, 1 on error
*/
static uint32_t
sctp_fill_user_address(struct sockaddr *dst, struct sockaddr *src)
{
#ifdef INET6
#if defined(SCTP_EMBEDDED_V6_SCOPE)
struct sockaddr_in6 lsa6;
src = (struct sockaddr *)sctp_recover_scope((struct sockaddr_in6 *)src,
&lsa6);
#endif
#endif
#ifdef HAVE_SA_LEN
memcpy(dst, src, src->sa_len);
#else
switch (src->sa_family) {
#ifdef INET
case AF_INET:
memcpy(dst, src, sizeof(struct sockaddr_in));
break;
#endif
#ifdef INET6
case AF_INET6:
memcpy(dst, src, sizeof(struct sockaddr_in6));
break;
#endif
#if defined(__Userspace__)
case AF_CONN:
memcpy(dst, src, sizeof(struct sockaddr_conn));
break;
#endif
default:
/* TSNH */
break;
}
#endif
return (0);
}
static size_t
sctp_fill_up_addresses_vrf(struct sctp_inpcb *inp,
struct sctp_tcb *stcb,
size_t limit,
struct sockaddr *addr,
uint32_t vrf_id)
{
struct sctp_ifn *sctp_ifn;
struct sctp_ifa *sctp_ifa;
size_t actual;
int loopback_scope;
#if defined(INET)
int ipv4_local_scope, ipv4_addr_legal;
#endif
#if defined(INET6)
int local_scope, site_scope, ipv6_addr_legal;
#endif
#if defined(__Userspace__)
int conn_addr_legal;
#endif
struct sctp_vrf *vrf;
SCTP_IPI_ADDR_LOCK_ASSERT();
actual = 0;
if (limit == 0)
return (actual);
if (stcb) {
/* Turn on all the appropriate scope */
loopback_scope = stcb->asoc.scope.loopback_scope;
#if defined(INET)
ipv4_local_scope = stcb->asoc.scope.ipv4_local_scope;
ipv4_addr_legal = stcb->asoc.scope.ipv4_addr_legal;
#endif
#if defined(INET6)
local_scope = stcb->asoc.scope.local_scope;
site_scope = stcb->asoc.scope.site_scope;
ipv6_addr_legal = stcb->asoc.scope.ipv6_addr_legal;
#endif
#if defined(__Userspace__)
conn_addr_legal = stcb->asoc.scope.conn_addr_legal;
#endif
} else {
/* Use generic values for endpoints. */
loopback_scope = 1;
#if defined(INET)
ipv4_local_scope = 1;
#endif
#if defined(INET6)
local_scope = 1;
site_scope = 1;
#endif
if (inp->sctp_flags & SCTP_PCB_FLAGS_BOUND_V6) {
#if defined(INET6)
ipv6_addr_legal = 1;
#endif
#if defined(INET)
if (SCTP_IPV6_V6ONLY(inp)) {
ipv4_addr_legal = 0;
} else {
ipv4_addr_legal = 1;
}
#endif
#if defined(__Userspace__)
conn_addr_legal = 0;
#endif
} else {
#if defined(INET6)
ipv6_addr_legal = 0;
#endif
#if defined(__Userspace__)
if (inp->sctp_flags & SCTP_PCB_FLAGS_BOUND_CONN) {
conn_addr_legal = 1;
#if defined(INET)
ipv4_addr_legal = 0;
#endif
} else {
conn_addr_legal = 0;
#if defined(INET)
ipv4_addr_legal = 1;
#endif
}
#else
#if defined(INET)
ipv4_addr_legal = 1;
#endif
#endif
}
}
vrf = sctp_find_vrf(vrf_id);
if (vrf == NULL) {
return (0);
}
if (inp->sctp_flags & SCTP_PCB_FLAGS_BOUNDALL) {
LIST_FOREACH(sctp_ifn, &vrf->ifnlist, next_ifn) {
if ((loopback_scope == 0) &&
SCTP_IFN_IS_IFT_LOOP(sctp_ifn)) {
/* Skip loopback if loopback_scope not set */
continue;
}
LIST_FOREACH(sctp_ifa, &sctp_ifn->ifalist, next_ifa) {
if (stcb) {
/*
* For the BOUND-ALL case, the list
* associated with a TCB is Always
* considered a reverse list.. i.e.
* it lists addresses that are NOT
* part of the association. If this
* is one of those we must skip it.
*/
if (sctp_is_addr_restricted(stcb,
sctp_ifa)) {
continue;
}
}
switch (sctp_ifa->address.sa.sa_family) {
#ifdef INET
case AF_INET:
if (ipv4_addr_legal) {
struct sockaddr_in *sin;
sin = &sctp_ifa->address.sin;
if (sin->sin_addr.s_addr == 0) {
/*
* we skip unspecifed
* addresses
*/
continue;
}
#if defined(__FreeBSD__) && !defined(__Userspace__)
if (prison_check_ip4(inp->ip_inp.inp.inp_cred,
&sin->sin_addr) != 0) {
continue;
}
#endif
if ((ipv4_local_scope == 0) &&
(IN4_ISPRIVATE_ADDRESS(&sin->sin_addr))) {
continue;
}
#ifdef INET6
if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_NEEDS_MAPPED_V4)) {
if (actual + sizeof(struct sockaddr_in6) > limit) {
return (actual);
}
in6_sin_2_v4mapsin6(sin, (struct sockaddr_in6 *)addr);
((struct sockaddr_in6 *)addr)->sin6_port = inp->sctp_lport;
addr = (struct sockaddr *)((caddr_t)addr + sizeof(struct sockaddr_in6));
actual += sizeof(struct sockaddr_in6);
} else {
#endif
if (actual + sizeof(struct sockaddr_in) > limit) {
return (actual);
}
memcpy(addr, sin, sizeof(struct sockaddr_in));
((struct sockaddr_in *)addr)->sin_port = inp->sctp_lport;
addr = (struct sockaddr *)((caddr_t)addr + sizeof(struct sockaddr_in));
actual += sizeof(struct sockaddr_in);
#ifdef INET6
}
#endif
} else {
continue;
}
break;
#endif
#ifdef INET6
case AF_INET6:
if (ipv6_addr_legal) {
struct sockaddr_in6 *sin6;
#if defined(SCTP_EMBEDDED_V6_SCOPE) && !defined(SCTP_KAME)
struct sockaddr_in6 lsa6;
#endif
sin6 = &sctp_ifa->address.sin6;
if (IN6_IS_ADDR_UNSPECIFIED(&sin6->sin6_addr)) {
/*
* we skip unspecifed
* addresses
*/
continue;
}
#if defined(__FreeBSD__) && !defined(__Userspace__)
if (prison_check_ip6(inp->ip_inp.inp.inp_cred,
&sin6->sin6_addr) != 0) {
continue;
}
#endif
if (IN6_IS_ADDR_LINKLOCAL(&sin6->sin6_addr)) {
if (local_scope == 0)
continue;
#if defined(SCTP_EMBEDDED_V6_SCOPE)
if (sin6->sin6_scope_id == 0) {
#ifdef SCTP_KAME
if (sa6_recoverscope(sin6) != 0)
/*
* bad link
* local
* address
*/
continue;
#else
lsa6 = *sin6;
if (in6_recoverscope(&lsa6,
&lsa6.sin6_addr,
NULL))
/*
* bad link
* local
* address
*/
continue;
sin6 = &lsa6;
#endif /* SCTP_KAME */
}
#endif /* SCTP_EMBEDDED_V6_SCOPE */
}
if ((site_scope == 0) &&
(IN6_IS_ADDR_SITELOCAL(&sin6->sin6_addr))) {
continue;
}
if (actual + sizeof(struct sockaddr_in6) > limit) {
return (actual);
}
memcpy(addr, sin6, sizeof(struct sockaddr_in6));
((struct sockaddr_in6 *)addr)->sin6_port = inp->sctp_lport;
addr = (struct sockaddr *)((caddr_t)addr + sizeof(struct sockaddr_in6));
actual += sizeof(struct sockaddr_in6);
} else {
continue;
}
break;
#endif
#if defined(__Userspace__)
case AF_CONN:
if (conn_addr_legal) {
if (actual + sizeof(struct sockaddr_conn) > limit) {
return (actual);
}
memcpy(addr, &sctp_ifa->address.sconn, sizeof(struct sockaddr_conn));
((struct sockaddr_conn *)addr)->sconn_port = inp->sctp_lport;
addr = (struct sockaddr *)((caddr_t)addr + sizeof(struct sockaddr_conn));
actual += sizeof(struct sockaddr_conn);
} else {
continue;
}
#endif
default:
/* TSNH */
break;
}
}
}
} else {
struct sctp_laddr *laddr;
size_t sa_len;
LIST_FOREACH(laddr, &inp->sctp_addr_list, sctp_nxt_addr) {
if (stcb) {
if (sctp_is_addr_restricted(stcb, laddr->ifa)) {
continue;
}
}
#ifdef HAVE_SA_LEN
sa_len = laddr->ifa->address.sa.sa_len;
#else
switch (laddr->ifa->address.sa.sa_family) {
#ifdef INET
case AF_INET:
sa_len = sizeof(struct sockaddr_in);
break;
#endif
#ifdef INET6
case AF_INET6:
sa_len = sizeof(struct sockaddr_in6);
break;
#endif
#if defined(__Userspace__)
case AF_CONN:
sa_len = sizeof(struct sockaddr_conn);
break;
#endif
default:
/* TSNH */
sa_len = 0;
break;
}
#endif
if (actual + sa_len > limit) {
return (actual);
}
if (sctp_fill_user_address(addr, &laddr->ifa->address.sa))
continue;
switch (laddr->ifa->address.sa.sa_family) {
#ifdef INET
case AF_INET:
((struct sockaddr_in *)addr)->sin_port = inp->sctp_lport;
break;
#endif
#ifdef INET6
case AF_INET6:
((struct sockaddr_in6 *)addr)->sin6_port = inp->sctp_lport;
break;
#endif
#if defined(__Userspace__)
case AF_CONN:
((struct sockaddr_conn *)addr)->sconn_port = inp->sctp_lport;
break;
#endif
default:
/* TSNH */
break;
}
addr = (struct sockaddr *)((caddr_t)addr + sa_len);
actual += sa_len;
}
}
return (actual);
}
static size_t
sctp_fill_up_addresses(struct sctp_inpcb *inp,
struct sctp_tcb *stcb,
size_t limit,
struct sockaddr *addr)
{
size_t size = 0;
#ifdef SCTP_MVRF
uint32_t id;
#endif
SCTP_IPI_ADDR_RLOCK();
#ifdef SCTP_MVRF
/*
* FIX ME: ?? this WILL report duplicate addresses if they appear
* in more than one VRF.
*/
/* fill up addresses for all VRFs on the endpoint */
for (id = 0; (id < inp->num_vrfs) && (size < limit); id++) {
size += sctp_fill_up_addresses_vrf(inp, stcb, limit, addr,
inp->m_vrf_ids[id]);
addr = (struct sockaddr *)((caddr_t)addr + size);
}
#else
/* fill up addresses for the endpoint's default vrf */
size = sctp_fill_up_addresses_vrf(inp, stcb, limit, addr,
inp->def_vrf_id);
#endif
SCTP_IPI_ADDR_RUNLOCK();
return (size);
}
static int
sctp_count_max_addresses_vrf(struct sctp_inpcb *inp, uint32_t vrf_id)
{
int cnt = 0;
struct sctp_vrf *vrf = NULL;
/*
* In both sub-set bound an bound_all cases we return the MAXIMUM
* number of addresses that you COULD get. In reality the sub-set
* bound may have an exclusion list for a given TCB OR in the
* bound-all case a TCB may NOT include the loopback or other
* addresses as well.
*/
SCTP_IPI_ADDR_LOCK_ASSERT();
vrf = sctp_find_vrf(vrf_id);
if (vrf == NULL) {
return (0);
}
if (inp->sctp_flags & SCTP_PCB_FLAGS_BOUNDALL) {
struct sctp_ifn *sctp_ifn;
struct sctp_ifa *sctp_ifa;
LIST_FOREACH(sctp_ifn, &vrf->ifnlist, next_ifn) {
LIST_FOREACH(sctp_ifa, &sctp_ifn->ifalist, next_ifa) {
/* Count them if they are the right type */
switch (sctp_ifa->address.sa.sa_family) {
#ifdef INET
case AF_INET:
#ifdef INET6
if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_NEEDS_MAPPED_V4))
cnt += sizeof(struct sockaddr_in6);
else
cnt += sizeof(struct sockaddr_in);
#else
cnt += sizeof(struct sockaddr_in);
#endif
break;
#endif
#ifdef INET6
case AF_INET6:
cnt += sizeof(struct sockaddr_in6);
break;
#endif
#if defined(__Userspace__)
case AF_CONN:
cnt += sizeof(struct sockaddr_conn);
break;
#endif
default:
break;
}
}
}
} else {
struct sctp_laddr *laddr;
LIST_FOREACH(laddr, &inp->sctp_addr_list, sctp_nxt_addr) {
switch (laddr->ifa->address.sa.sa_family) {
#ifdef INET
case AF_INET:
#ifdef INET6
if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_NEEDS_MAPPED_V4))
cnt += sizeof(struct sockaddr_in6);
else
cnt += sizeof(struct sockaddr_in);
#else
cnt += sizeof(struct sockaddr_in);
#endif
break;
#endif
#ifdef INET6
case AF_INET6:
cnt += sizeof(struct sockaddr_in6);
break;
#endif
#if defined(__Userspace__)
case AF_CONN:
cnt += sizeof(struct sockaddr_conn);
break;
#endif
default:
break;
}
}
}
return (cnt);
}
static int
sctp_count_max_addresses(struct sctp_inpcb *inp)
{
int cnt = 0;
#ifdef SCTP_MVRF
int id;
#endif
SCTP_IPI_ADDR_RLOCK();
#ifdef SCTP_MVRF
/*
* FIX ME: ?? this WILL count duplicate addresses if they appear
* in more than one VRF.
*/
/* count addresses for all VRFs on the endpoint */
for (id = 0; id < inp->num_vrfs; id++) {
cnt += sctp_count_max_addresses_vrf(inp, inp->m_vrf_ids[id]);
}
#else
/* count addresses for the endpoint's default VRF */
cnt = sctp_count_max_addresses_vrf(inp, inp->def_vrf_id);
#endif
SCTP_IPI_ADDR_RUNLOCK();
return (cnt);
}
static int
sctp_do_connect_x(struct socket *so, struct sctp_inpcb *inp, void *optval,
size_t optsize, void *p, int delay)
{
int error;
int creat_lock_on = 0;
struct sctp_tcb *stcb = NULL;
struct sockaddr *sa;
unsigned int num_v6 = 0, num_v4 = 0, *totaddrp, totaddr;
uint32_t vrf_id;
sctp_assoc_t *a_id;
SCTPDBG(SCTP_DEBUG_PCB1, "Connectx called\n");
if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) &&
(inp->sctp_flags & SCTP_PCB_FLAGS_CONNECTED)) {
/* We are already connected AND the TCP model */
SCTP_LTRACE_ERR_RET(inp, stcb, NULL, SCTP_FROM_SCTP_USRREQ, EADDRINUSE);
return (EADDRINUSE);
}
if ((inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) &&
(sctp_is_feature_off(inp, SCTP_PCB_FLAGS_PORTREUSE))) {
SCTP_LTRACE_ERR_RET(inp, stcb, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
return (EINVAL);
}
if (inp->sctp_flags & SCTP_PCB_FLAGS_CONNECTED) {
SCTP_INP_RLOCK(inp);
stcb = LIST_FIRST(&inp->sctp_asoc_list);
SCTP_INP_RUNLOCK(inp);
}
if (stcb) {
SCTP_LTRACE_ERR_RET(inp, stcb, NULL, SCTP_FROM_SCTP_USRREQ, EALREADY);
return (EALREADY);
}
SCTP_INP_INCR_REF(inp);
SCTP_ASOC_CREATE_LOCK(inp);
creat_lock_on = 1;
if ((inp->sctp_flags & SCTP_PCB_FLAGS_SOCKET_ALLGONE) ||
(inp->sctp_flags & SCTP_PCB_FLAGS_SOCKET_GONE)) {
SCTP_LTRACE_ERR_RET(inp, stcb, NULL, SCTP_FROM_SCTP_USRREQ, EFAULT);
error = EFAULT;
goto out_now;
}
totaddrp = (unsigned int *)optval;
totaddr = *totaddrp;
sa = (struct sockaddr *)(totaddrp + 1);
error = sctp_connectx_helper_find(inp, sa, totaddr, &num_v4, &num_v6, (unsigned int)(optsize - sizeof(int)));
if (error != 0) {
/* Already have or am bring up an association */
SCTP_ASOC_CREATE_UNLOCK(inp);
creat_lock_on = 0;
SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
goto out_now;
}
#ifdef INET6
if (((inp->sctp_flags & SCTP_PCB_FLAGS_BOUND_V6) == 0) &&
(num_v6 > 0)) {
error = EINVAL;
goto out_now;
}
if ((inp->sctp_flags & SCTP_PCB_FLAGS_BOUND_V6) &&
(num_v4 > 0)) {
if (SCTP_IPV6_V6ONLY(inp)) {
/*
* if IPV6_V6ONLY flag, ignore connections destined
* to a v4 addr or v4-mapped addr
*/
SCTP_LTRACE_ERR_RET(inp, stcb, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
error = EINVAL;
goto out_now;
}
}
#endif /* INET6 */
if ((inp->sctp_flags & SCTP_PCB_FLAGS_UNBOUND) ==
SCTP_PCB_FLAGS_UNBOUND) {
/* Bind a ephemeral port */
error = sctp_inpcb_bind(so, NULL, NULL, p);
if (error) {
goto out_now;
}
}
/* FIX ME: do we want to pass in a vrf on the connect call? */
vrf_id = inp->def_vrf_id;
/* We are GOOD to go */
stcb = sctp_aloc_assoc(inp, sa, &error, 0, vrf_id,
inp->sctp_ep.pre_open_stream_count,
inp->sctp_ep.port,
#if defined(__FreeBSD__) && !defined(__Userspace__)
(struct thread *)p,
#elif defined(_WIN32) && !defined(__Userspace__)
(PKTHREAD)p,
#else
(struct proc *)p,
#endif
SCTP_INITIALIZE_AUTH_PARAMS);
if (stcb == NULL) {
/* Gak! no memory */
goto out_now;
}
if (stcb->sctp_ep->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) {
stcb->sctp_ep->sctp_flags |= SCTP_PCB_FLAGS_CONNECTED;
/* Set the connected flag so we can queue data */
soisconnecting(so);
}
SCTP_SET_STATE(stcb, SCTP_STATE_COOKIE_WAIT);
/* move to second address */
switch (sa->sa_family) {
#ifdef INET
case AF_INET:
sa = (struct sockaddr *)((caddr_t)sa + sizeof(struct sockaddr_in));
break;
#endif
#ifdef INET6
case AF_INET6:
sa = (struct sockaddr *)((caddr_t)sa + sizeof(struct sockaddr_in6));
break;
#endif
default:
break;
}
error = 0;
sctp_connectx_helper_add(stcb, sa, (totaddr-1), &error);
/* Fill in the return id */
if (error) {
goto out_now;
}
a_id = (sctp_assoc_t *)optval;
*a_id = sctp_get_associd(stcb);
if (delay) {
/* doing delayed connection */
stcb->asoc.delayed_connection = 1;
sctp_timer_start(SCTP_TIMER_TYPE_INIT, inp, stcb, stcb->asoc.primary_destination);
} else {
(void)SCTP_GETTIME_TIMEVAL(&stcb->asoc.time_entered);
sctp_send_initiate(inp, stcb, SCTP_SO_LOCKED);
}
SCTP_TCB_UNLOCK(stcb);
out_now:
if (creat_lock_on) {
SCTP_ASOC_CREATE_UNLOCK(inp);
}
SCTP_INP_DECR_REF(inp);
return (error);
}
#define SCTP_FIND_STCB(inp, stcb, assoc_id) { \
if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||\
(inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL)) { \
SCTP_INP_RLOCK(inp); \
stcb = LIST_FIRST(&inp->sctp_asoc_list); \
if (stcb) { \
SCTP_TCB_LOCK(stcb); \
} \
SCTP_INP_RUNLOCK(inp); \
} else if (assoc_id > SCTP_ALL_ASSOC) { \
stcb = sctp_findassociation_ep_asocid(inp, assoc_id, 1); \
if (stcb == NULL) { \
SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOENT); \
error = ENOENT; \
break; \
} \
} else { \
stcb = NULL; \
} \
}
#define SCTP_CHECK_AND_CAST(destp, srcp, type, size) {\
if (size < sizeof(type)) { \
SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL); \
error = EINVAL; \
break; \
} else { \
destp = (type *)srcp; \
} \
}
#if defined(__Userspace__)
int
#else
static int
#endif
sctp_getopt(struct socket *so, int optname, void *optval, size_t *optsize,
void *p) {
struct sctp_inpcb *inp = NULL;
int error, val = 0;
struct sctp_tcb *stcb = NULL;
if (optval == NULL) {
SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
return (EINVAL);
}
inp = (struct sctp_inpcb *)so->so_pcb;
if (inp == NULL) {
SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
return EINVAL;
}
error = 0;
switch (optname) {
case SCTP_NODELAY:
case SCTP_AUTOCLOSE:
case SCTP_EXPLICIT_EOR:
case SCTP_AUTO_ASCONF:
case SCTP_DISABLE_FRAGMENTS:
case SCTP_I_WANT_MAPPED_V4_ADDR:
case SCTP_USE_EXT_RCVINFO:
SCTP_INP_RLOCK(inp);
switch (optname) {
case SCTP_DISABLE_FRAGMENTS:
val = sctp_is_feature_on(inp, SCTP_PCB_FLAGS_NO_FRAGMENT);
break;
case SCTP_I_WANT_MAPPED_V4_ADDR:
val = sctp_is_feature_on(inp, SCTP_PCB_FLAGS_NEEDS_MAPPED_V4);
break;
case SCTP_AUTO_ASCONF:
if (inp->sctp_flags & SCTP_PCB_FLAGS_BOUNDALL) {
/* only valid for bound all sockets */
val = sctp_is_feature_on(inp, SCTP_PCB_FLAGS_AUTO_ASCONF);
} else {
SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
error = EINVAL;
goto flags_out;
}
break;
case SCTP_EXPLICIT_EOR:
val = sctp_is_feature_on(inp, SCTP_PCB_FLAGS_EXPLICIT_EOR);
break;
case SCTP_NODELAY:
val = sctp_is_feature_on(inp, SCTP_PCB_FLAGS_NODELAY);
break;
case SCTP_USE_EXT_RCVINFO:
val = sctp_is_feature_on(inp, SCTP_PCB_FLAGS_EXT_RCVINFO);
break;
case SCTP_AUTOCLOSE:
if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_AUTOCLOSE))
val = sctp_ticks_to_secs(inp->sctp_ep.auto_close_time);
else
val = 0;
break;
default:
SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOPROTOOPT);
error = ENOPROTOOPT;
} /* end switch (sopt->sopt_name) */
if (*optsize < sizeof(val)) {
SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
error = EINVAL;
}
flags_out:
SCTP_INP_RUNLOCK(inp);
if (error == 0) {
/* return the option value */
*(int *)optval = val;
*optsize = sizeof(val);
}
break;
case SCTP_GET_PACKET_LOG:
{
#ifdef SCTP_PACKET_LOGGING
uint8_t *target;
int ret;
SCTP_CHECK_AND_CAST(target, optval, uint8_t, *optsize);
ret = sctp_copy_out_packet_log(target , (int)*optsize);
*optsize = ret;
#else
SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EOPNOTSUPP);
error = EOPNOTSUPP;
#endif
break;
}
case SCTP_REUSE_PORT:
{
uint32_t *value;
if ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE)) {
/* Can't do this for a 1-m socket */
error = EINVAL;
break;
}
SCTP_CHECK_AND_CAST(value, optval, uint32_t, *optsize);
*value = sctp_is_feature_on(inp, SCTP_PCB_FLAGS_PORTREUSE);
*optsize = sizeof(uint32_t);
break;
}
case SCTP_PARTIAL_DELIVERY_POINT:
{
uint32_t *value;
SCTP_CHECK_AND_CAST(value, optval, uint32_t, *optsize);
*value = inp->partial_delivery_point;
*optsize = sizeof(uint32_t);
break;
}
case SCTP_FRAGMENT_INTERLEAVE:
{
uint32_t *value;
SCTP_CHECK_AND_CAST(value, optval, uint32_t, *optsize);
if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_FRAG_INTERLEAVE)) {
if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_INTERLEAVE_STRMS)) {
*value = SCTP_FRAG_LEVEL_2;
} else {
*value = SCTP_FRAG_LEVEL_1;
}
} else {
*value = SCTP_FRAG_LEVEL_0;
}
*optsize = sizeof(uint32_t);
break;
}
case SCTP_INTERLEAVING_SUPPORTED:
{
struct sctp_assoc_value *av;
SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, *optsize);
SCTP_FIND_STCB(inp, stcb, av->assoc_id);
if (stcb) {
av->assoc_value = stcb->asoc.idata_supported;
SCTP_TCB_UNLOCK(stcb);
} else {
if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
(inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
(av->assoc_id == SCTP_FUTURE_ASSOC))) {
SCTP_INP_RLOCK(inp);
if (inp->idata_supported) {
av->assoc_value = 1;
} else {
av->assoc_value = 0;
}
SCTP_INP_RUNLOCK(inp);
} else {
SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
error = EINVAL;
}
}
if (error == 0) {
*optsize = sizeof(struct sctp_assoc_value);
}
break;
}
case SCTP_CMT_ON_OFF:
{
struct sctp_assoc_value *av;
SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, *optsize);
SCTP_FIND_STCB(inp, stcb, av->assoc_id);
if (stcb) {
av->assoc_value = stcb->asoc.sctp_cmt_on_off;
SCTP_TCB_UNLOCK(stcb);
} else {
if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
(inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
(av->assoc_id == SCTP_FUTURE_ASSOC))) {
SCTP_INP_RLOCK(inp);
av->assoc_value = inp->sctp_cmt_on_off;
SCTP_INP_RUNLOCK(inp);
} else {
SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
error = EINVAL;
}
}
if (error == 0) {
*optsize = sizeof(struct sctp_assoc_value);
}
break;
}
case SCTP_PLUGGABLE_CC:
{
struct sctp_assoc_value *av;
SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, *optsize);
SCTP_FIND_STCB(inp, stcb, av->assoc_id);
if (stcb) {
av->assoc_value = stcb->asoc.congestion_control_module;
SCTP_TCB_UNLOCK(stcb);
} else {
if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
(inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
(av->assoc_id == SCTP_FUTURE_ASSOC))) {
SCTP_INP_RLOCK(inp);
av->assoc_value = inp->sctp_ep.sctp_default_cc_module;
SCTP_INP_RUNLOCK(inp);
} else {
SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
error = EINVAL;
}
}
if (error == 0) {
*optsize = sizeof(struct sctp_assoc_value);
}
break;
}
case SCTP_CC_OPTION:
{
struct sctp_cc_option *cc_opt;
SCTP_CHECK_AND_CAST(cc_opt, optval, struct sctp_cc_option, *optsize);
SCTP_FIND_STCB(inp, stcb, cc_opt->aid_value.assoc_id);
if (stcb == NULL) {
error = EINVAL;
} else {
if (stcb->asoc.cc_functions.sctp_cwnd_socket_option == NULL) {
error = ENOTSUP;
} else {
error = (*stcb->asoc.cc_functions.sctp_cwnd_socket_option)(stcb, 0, cc_opt);
*optsize = sizeof(struct sctp_cc_option);
}
SCTP_TCB_UNLOCK(stcb);
}
break;
}
case SCTP_PLUGGABLE_SS:
{
struct sctp_assoc_value *av;
SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, *optsize);
SCTP_FIND_STCB(inp, stcb, av->assoc_id);
if (stcb) {
av->assoc_value = stcb->asoc.stream_scheduling_module;
SCTP_TCB_UNLOCK(stcb);
} else {
if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
(inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
(av->assoc_id == SCTP_FUTURE_ASSOC))) {
SCTP_INP_RLOCK(inp);
av->assoc_value = inp->sctp_ep.sctp_default_ss_module;
SCTP_INP_RUNLOCK(inp);
} else {
SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
error = EINVAL;
}
}
if (error == 0) {
*optsize = sizeof(struct sctp_assoc_value);
}
break;
}
case SCTP_SS_VALUE:
{
struct sctp_stream_value *av;
SCTP_CHECK_AND_CAST(av, optval, struct sctp_stream_value, *optsize);
SCTP_FIND_STCB(inp, stcb, av->assoc_id);
if (stcb) {
if ((av->stream_id >= stcb->asoc.streamoutcnt) ||
(stcb->asoc.ss_functions.sctp_ss_get_value(stcb, &stcb->asoc, &stcb->asoc.strmout[av->stream_id],
&av->stream_value) < 0)) {
SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
error = EINVAL;
} else {
*optsize = sizeof(struct sctp_stream_value);
}
SCTP_TCB_UNLOCK(stcb);
} else {
/* Can't get stream value without association */
SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
error = EINVAL;
}
break;
}
case SCTP_GET_ADDR_LEN:
{
struct sctp_assoc_value *av;
SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, *optsize);
error = EINVAL;
#ifdef INET
if (av->assoc_value == AF_INET) {
av->assoc_value = sizeof(struct sockaddr_in);
error = 0;
}
#endif
#ifdef INET6
if (av->assoc_value == AF_INET6) {
av->assoc_value = sizeof(struct sockaddr_in6);
error = 0;
}
#endif
#if defined(__Userspace__)
if (av->assoc_value == AF_CONN) {
av->assoc_value = sizeof(struct sockaddr_conn);
error = 0;
}
#endif
if (error) {
SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
} else {
*optsize = sizeof(struct sctp_assoc_value);
}
break;
}
case SCTP_GET_ASSOC_NUMBER:
{
uint32_t *value, cnt;
SCTP_CHECK_AND_CAST(value, optval, uint32_t, *optsize);
SCTP_INP_RLOCK(inp);
if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
(inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL)) {
/* Can't do this for a 1-1 socket */
error = EINVAL;
SCTP_INP_RUNLOCK(inp);
break;
}
cnt = 0;
LIST_FOREACH(stcb, &inp->sctp_asoc_list, sctp_tcblist) {
cnt++;
}
SCTP_INP_RUNLOCK(inp);
*value = cnt;
*optsize = sizeof(uint32_t);
break;
}
case SCTP_GET_ASSOC_ID_LIST:
{
struct sctp_assoc_ids *ids;
uint32_t at;
size_t limit;
SCTP_CHECK_AND_CAST(ids, optval, struct sctp_assoc_ids, *optsize);
SCTP_INP_RLOCK(inp);
if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
(inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL)) {
/* Can't do this for a 1-1 socket */
error = EINVAL;
SCTP_INP_RUNLOCK(inp);
break;
}
at = 0;
limit = (*optsize - sizeof(uint32_t)) / sizeof(sctp_assoc_t);
LIST_FOREACH(stcb, &inp->sctp_asoc_list, sctp_tcblist) {
if (at < limit) {
ids->gaids_assoc_id[at++] = sctp_get_associd(stcb);
if (at == 0) {
error = EINVAL;
SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
break;
}
} else {
error = EINVAL;
SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
break;
}
}
SCTP_INP_RUNLOCK(inp);
if (error == 0) {
ids->gaids_number_of_ids = at;
*optsize = ((at * sizeof(sctp_assoc_t)) + sizeof(uint32_t));
}
break;
}
case SCTP_CONTEXT:
{
struct sctp_assoc_value *av;
SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, *optsize);
SCTP_FIND_STCB(inp, stcb, av->assoc_id);
if (stcb) {
av->assoc_value = stcb->asoc.context;
SCTP_TCB_UNLOCK(stcb);
} else {
if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
(inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
(av->assoc_id == SCTP_FUTURE_ASSOC))) {
SCTP_INP_RLOCK(inp);
av->assoc_value = inp->sctp_context;
SCTP_INP_RUNLOCK(inp);
} else {
SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
error = EINVAL;
}
}
if (error == 0) {
*optsize = sizeof(struct sctp_assoc_value);
}
break;
}
case SCTP_VRF_ID:
{
uint32_t *default_vrfid;
SCTP_CHECK_AND_CAST(default_vrfid, optval, uint32_t, *optsize);
*default_vrfid = inp->def_vrf_id;
*optsize = sizeof(uint32_t);
break;
}
case SCTP_GET_ASOC_VRF:
{
struct sctp_assoc_value *id;
SCTP_CHECK_AND_CAST(id, optval, struct sctp_assoc_value, *optsize);
SCTP_FIND_STCB(inp, stcb, id->assoc_id);
if (stcb == NULL) {
error = EINVAL;
SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
} else {
id->assoc_value = stcb->asoc.vrf_id;
SCTP_TCB_UNLOCK(stcb);
*optsize = sizeof(struct sctp_assoc_value);
}
break;
}
case SCTP_GET_VRF_IDS:
{
#ifdef SCTP_MVRF
int siz_needed;
uint32_t *vrf_ids;
SCTP_CHECK_AND_CAST(vrf_ids, optval, uint32_t, *optsize);
siz_needed = inp->num_vrfs * sizeof(uint32_t);
if (*optsize < siz_needed) {
error = EINVAL;
SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
} else {
memcpy(vrf_ids, inp->m_vrf_ids, siz_needed);
*optsize = siz_needed;
}
#else
SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EOPNOTSUPP);
error = EOPNOTSUPP;
#endif
break;
}
case SCTP_GET_NONCE_VALUES:
{
struct sctp_get_nonce_values *gnv;
SCTP_CHECK_AND_CAST(gnv, optval, struct sctp_get_nonce_values, *optsize);
SCTP_FIND_STCB(inp, stcb, gnv->gn_assoc_id);
if (stcb) {
gnv->gn_peers_tag = stcb->asoc.peer_vtag;
gnv->gn_local_tag = stcb->asoc.my_vtag;
SCTP_TCB_UNLOCK(stcb);
*optsize = sizeof(struct sctp_get_nonce_values);
} else {
SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOTCONN);
error = ENOTCONN;
}
break;
}
case SCTP_DELAYED_SACK:
{
struct sctp_sack_info *sack;
SCTP_CHECK_AND_CAST(sack, optval, struct sctp_sack_info, *optsize);
SCTP_FIND_STCB(inp, stcb, sack->sack_assoc_id);
if (stcb) {
sack->sack_delay = stcb->asoc.delayed_ack;
sack->sack_freq = stcb->asoc.sack_freq;
SCTP_TCB_UNLOCK(stcb);
} else {
if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
(inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
(sack->sack_assoc_id == SCTP_FUTURE_ASSOC))) {
SCTP_INP_RLOCK(inp);
sack->sack_delay = sctp_ticks_to_msecs(inp->sctp_ep.sctp_timeoutticks[SCTP_TIMER_RECV]);
sack->sack_freq = inp->sctp_ep.sctp_sack_freq;
SCTP_INP_RUNLOCK(inp);
} else {
SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
error = EINVAL;
}
}
if (error == 0) {
*optsize = sizeof(struct sctp_sack_info);
}
break;
}
case SCTP_GET_SNDBUF_USE:
{
struct sctp_sockstat *ss;
SCTP_CHECK_AND_CAST(ss, optval, struct sctp_sockstat, *optsize);
SCTP_FIND_STCB(inp, stcb, ss->ss_assoc_id);
if (stcb) {
ss->ss_total_sndbuf = stcb->asoc.total_output_queue_size;
ss->ss_total_recv_buf = (stcb->asoc.size_on_reasm_queue +
stcb->asoc.size_on_all_streams);
SCTP_TCB_UNLOCK(stcb);
*optsize = sizeof(struct sctp_sockstat);
} else {
SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOTCONN);
error = ENOTCONN;
}
break;
}
case SCTP_MAX_BURST:
{
struct sctp_assoc_value *av;
SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, *optsize);
SCTP_FIND_STCB(inp, stcb, av->assoc_id);
if (stcb) {
av->assoc_value = stcb->asoc.max_burst;
SCTP_TCB_UNLOCK(stcb);
} else {
if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
(inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
(av->assoc_id == SCTP_FUTURE_ASSOC))) {
SCTP_INP_RLOCK(inp);
av->assoc_value = inp->sctp_ep.max_burst;
SCTP_INP_RUNLOCK(inp);
} else {
SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
error = EINVAL;
}
}
if (error == 0) {
*optsize = sizeof(struct sctp_assoc_value);
}
break;
}
case SCTP_MAXSEG:
{
struct sctp_assoc_value *av;
int ovh;
SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, *optsize);
SCTP_FIND_STCB(inp, stcb, av->assoc_id);
if (stcb) {
av->assoc_value = sctp_get_frag_point(stcb, &stcb->asoc);
SCTP_TCB_UNLOCK(stcb);
} else {
if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
(inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
(av->assoc_id == SCTP_FUTURE_ASSOC))) {
SCTP_INP_RLOCK(inp);
if (inp->sctp_flags & SCTP_PCB_FLAGS_BOUND_V6) {
ovh = SCTP_MED_OVERHEAD;
} else {
ovh = SCTP_MED_V4_OVERHEAD;
}
if (inp->sctp_frag_point >= SCTP_DEFAULT_MAXSEGMENT)
av->assoc_value = 0;
else
av->assoc_value = inp->sctp_frag_point - ovh;
SCTP_INP_RUNLOCK(inp);
} else {
SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
error = EINVAL;
}
}
if (error == 0) {
*optsize = sizeof(struct sctp_assoc_value);
}
break;
}
case SCTP_GET_STAT_LOG:
error = sctp_fill_stat_log(optval, optsize);
break;
case SCTP_EVENTS:
{
struct sctp_event_subscribe *events;
SCTP_CHECK_AND_CAST(events, optval, struct sctp_event_subscribe, *optsize);
memset(events, 0, sizeof(struct sctp_event_subscribe));
SCTP_INP_RLOCK(inp);
if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_RECVDATAIOEVNT))
events->sctp_data_io_event = 1;
if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_RECVASSOCEVNT))
events->sctp_association_event = 1;
if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_RECVPADDREVNT))
events->sctp_address_event = 1;
if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_RECVSENDFAILEVNT))
events->sctp_send_failure_event = 1;
if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_RECVPEERERR))
events->sctp_peer_error_event = 1;
if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_RECVSHUTDOWNEVNT))
events->sctp_shutdown_event = 1;
if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_PDAPIEVNT))
events->sctp_partial_delivery_event = 1;
if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_ADAPTATIONEVNT))
events->sctp_adaptation_layer_event = 1;
if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_AUTHEVNT))
events->sctp_authentication_event = 1;
if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_DRYEVNT))
events->sctp_sender_dry_event = 1;
if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_STREAM_RESETEVNT))
events->sctp_stream_reset_event = 1;
SCTP_INP_RUNLOCK(inp);
*optsize = sizeof(struct sctp_event_subscribe);
break;
}
case SCTP_ADAPTATION_LAYER:
{
uint32_t *value;
SCTP_CHECK_AND_CAST(value, optval, uint32_t, *optsize);
SCTP_INP_RLOCK(inp);
*value = inp->sctp_ep.adaptation_layer_indicator;
SCTP_INP_RUNLOCK(inp);
*optsize = sizeof(uint32_t);
break;
}
case SCTP_SET_INITIAL_DBG_SEQ:
{
uint32_t *value;
SCTP_CHECK_AND_CAST(value, optval, uint32_t, *optsize);
SCTP_INP_RLOCK(inp);
*value = inp->sctp_ep.initial_sequence_debug;
SCTP_INP_RUNLOCK(inp);
*optsize = sizeof(uint32_t);
break;
}
case SCTP_GET_LOCAL_ADDR_SIZE:
{
uint32_t *value;
SCTP_CHECK_AND_CAST(value, optval, uint32_t, *optsize);
SCTP_INP_RLOCK(inp);
*value = sctp_count_max_addresses(inp);
SCTP_INP_RUNLOCK(inp);
*optsize = sizeof(uint32_t);
break;
}
case SCTP_GET_REMOTE_ADDR_SIZE:
{
uint32_t *value;
size_t size;
struct sctp_nets *net;
SCTP_CHECK_AND_CAST(value, optval, uint32_t, *optsize);
/* FIXME MT: change to sctp_assoc_value? */
SCTP_FIND_STCB(inp, stcb, (sctp_assoc_t) *value);
if (stcb) {
size = 0;
/* Count the sizes */
TAILQ_FOREACH(net, &stcb->asoc.nets, sctp_next) {
switch (net->ro._l_addr.sa.sa_family) {
#ifdef INET
case AF_INET:
#ifdef INET6
if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_NEEDS_MAPPED_V4)) {
size += sizeof(struct sockaddr_in6);
} else {
size += sizeof(struct sockaddr_in);
}
#else
size += sizeof(struct sockaddr_in);
#endif
break;
#endif
#ifdef INET6
case AF_INET6:
size += sizeof(struct sockaddr_in6);
break;
#endif
#if defined(__Userspace__)
case AF_CONN:
size += sizeof(struct sockaddr_conn);
break;
#endif
default:
break;
}
}
SCTP_TCB_UNLOCK(stcb);
*value = (uint32_t) size;
*optsize = sizeof(uint32_t);
} else {
SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOTCONN);
error = ENOTCONN;
}
break;
}
case SCTP_GET_PEER_ADDRESSES:
/*
* Get the address information, an array is passed in to
* fill up we pack it.
*/
{
size_t cpsz, left;
struct sockaddr *addr;
struct sctp_nets *net;
struct sctp_getaddresses *saddr;
SCTP_CHECK_AND_CAST(saddr, optval, struct sctp_getaddresses, *optsize);
SCTP_FIND_STCB(inp, stcb, saddr->sget_assoc_id);
if (stcb) {
left = *optsize - offsetof(struct sctp_getaddresses, addr);
*optsize = offsetof(struct sctp_getaddresses, addr);
addr = &saddr->addr[0].sa;
TAILQ_FOREACH(net, &stcb->asoc.nets, sctp_next) {
switch (net->ro._l_addr.sa.sa_family) {
#ifdef INET
case AF_INET:
#ifdef INET6
if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_NEEDS_MAPPED_V4)) {
cpsz = sizeof(struct sockaddr_in6);
} else {
cpsz = sizeof(struct sockaddr_in);
}
#else
cpsz = sizeof(struct sockaddr_in);
#endif
break;
#endif
#ifdef INET6
case AF_INET6:
cpsz = sizeof(struct sockaddr_in6);
break;
#endif
#if defined(__Userspace__)
case AF_CONN:
cpsz = sizeof(struct sockaddr_conn);
break;
#endif
default:
cpsz = 0;
break;
}
if (cpsz == 0) {
break;
}
if (left < cpsz) {
/* not enough room. */
break;
}
#if defined(INET) && defined(INET6)
if ((sctp_is_feature_on(inp, SCTP_PCB_FLAGS_NEEDS_MAPPED_V4)) &&
(net->ro._l_addr.sa.sa_family == AF_INET)) {
/* Must map the address */
in6_sin_2_v4mapsin6(&net->ro._l_addr.sin,
(struct sockaddr_in6 *)addr);
} else {
memcpy(addr, &net->ro._l_addr, cpsz);
}
#else
memcpy(addr, &net->ro._l_addr, cpsz);
#endif
((struct sockaddr_in *)addr)->sin_port = stcb->rport;
addr = (struct sockaddr *)((caddr_t)addr + cpsz);
left -= cpsz;
*optsize += cpsz;
}
SCTP_TCB_UNLOCK(stcb);
} else {
SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOENT);
error = ENOENT;
}
break;
}
case SCTP_GET_LOCAL_ADDRESSES:
{
size_t limit, actual;
struct sctp_getaddresses *saddr;
SCTP_CHECK_AND_CAST(saddr, optval, struct sctp_getaddresses, *optsize);
SCTP_FIND_STCB(inp, stcb, saddr->sget_assoc_id);
limit = *optsize - offsetof(struct sctp_getaddresses, addr);
actual = sctp_fill_up_addresses(inp, stcb, limit, &saddr->addr[0].sa);
if (stcb) {
SCTP_TCB_UNLOCK(stcb);
}
*optsize = offsetof(struct sctp_getaddresses, addr) + actual;
break;
}
case SCTP_PEER_ADDR_PARAMS:
{
struct sctp_paddrparams *paddrp;
struct sctp_nets *net;
struct sockaddr *addr;
#if defined(INET) && defined(INET6)
struct sockaddr_in sin_store;
#endif
SCTP_CHECK_AND_CAST(paddrp, optval, struct sctp_paddrparams, *optsize);
SCTP_FIND_STCB(inp, stcb, paddrp->spp_assoc_id);
#if defined(INET) && defined(INET6)
if (paddrp->spp_address.ss_family == AF_INET6) {
struct sockaddr_in6 *sin6;
sin6 = (struct sockaddr_in6 *)&paddrp->spp_address;
if (IN6_IS_ADDR_V4MAPPED(&sin6->sin6_addr)) {
in6_sin6_2_sin(&sin_store, sin6);
addr = (struct sockaddr *)&sin_store;
} else {
addr = (struct sockaddr *)&paddrp->spp_address;
}
} else {
addr = (struct sockaddr *)&paddrp->spp_address;
}
#else
addr = (struct sockaddr *)&paddrp->spp_address;
#endif
if (stcb != NULL) {
net = sctp_findnet(stcb, addr);
} else {
/* We increment here since sctp_findassociation_ep_addr() wil
* do a decrement if it finds the stcb as long as the locked
* tcb (last argument) is NOT a TCB.. aka NULL.
*/
net = NULL;
SCTP_INP_INCR_REF(inp);
stcb = sctp_findassociation_ep_addr(&inp, addr, &net, NULL, NULL);
if (stcb == NULL) {
SCTP_INP_DECR_REF(inp);
}
}
if ((stcb != NULL) && (net == NULL)) {
#ifdef INET
if (addr->sa_family == AF_INET) {
struct sockaddr_in *sin;
sin = (struct sockaddr_in *)addr;
if (sin->sin_addr.s_addr != INADDR_ANY) {
error = EINVAL;
SCTP_TCB_UNLOCK(stcb);
SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
break;
}
} else
#endif
#ifdef INET6
if (addr->sa_family == AF_INET6) {
struct sockaddr_in6 *sin6;
sin6 = (struct sockaddr_in6 *)addr;
if (!IN6_IS_ADDR_UNSPECIFIED(&sin6->sin6_addr)) {
error = EINVAL;
SCTP_TCB_UNLOCK(stcb);
SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
break;
}
} else
#endif
#if defined(__Userspace__)
if (addr->sa_family == AF_CONN) {
struct sockaddr_conn *sconn;
sconn = (struct sockaddr_conn *)addr;
if (sconn->sconn_addr != NULL) {
error = EINVAL;
SCTP_TCB_UNLOCK(stcb);
SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
break;
}
} else
#endif
{
error = EAFNOSUPPORT;
SCTP_TCB_UNLOCK(stcb);
SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
break;
}
}
if (stcb != NULL) {
/* Applies to the specific association */
paddrp->spp_flags = 0;
if (net != NULL) {
paddrp->spp_hbinterval = net->heart_beat_delay;
paddrp->spp_pathmaxrxt = net->failure_threshold;
paddrp->spp_pathmtu = net->mtu;
switch (net->ro._l_addr.sa.sa_family) {
#ifdef INET
case AF_INET:
paddrp->spp_pathmtu -= SCTP_MIN_V4_OVERHEAD;
break;
#endif
#ifdef INET6
case AF_INET6:
paddrp->spp_pathmtu -= SCTP_MIN_OVERHEAD;
break;
#endif
#if defined(__Userspace__)
case AF_CONN:
paddrp->spp_pathmtu -= sizeof(struct sctphdr);
break;
#endif
default:
break;
}
/* get flags for HB */
if (net->dest_state & SCTP_ADDR_NOHB) {
paddrp->spp_flags |= SPP_HB_DISABLE;
} else {
paddrp->spp_flags |= SPP_HB_ENABLE;
}
/* get flags for PMTU */
if (net->dest_state & SCTP_ADDR_NO_PMTUD) {
paddrp->spp_flags |= SPP_PMTUD_DISABLE;
} else {
paddrp->spp_flags |= SPP_PMTUD_ENABLE;
}
if (net->dscp & 0x01) {
paddrp->spp_dscp = net->dscp & 0xfc;
paddrp->spp_flags |= SPP_DSCP;
}
#ifdef INET6
if ((net->ro._l_addr.sa.sa_family == AF_INET6) &&
(net->flowlabel & 0x80000000)) {
paddrp->spp_ipv6_flowlabel = net->flowlabel & 0x000fffff;
paddrp->spp_flags |= SPP_IPV6_FLOWLABEL;
}
#endif
} else {
/*
* No destination so return default
* value
*/
paddrp->spp_pathmaxrxt = stcb->asoc.def_net_failure;
paddrp->spp_pathmtu = stcb->asoc.default_mtu;
if (stcb->asoc.default_dscp & 0x01) {
paddrp->spp_dscp = stcb->asoc.default_dscp & 0xfc;
paddrp->spp_flags |= SPP_DSCP;
}
#ifdef INET6
if (stcb->asoc.default_flowlabel & 0x80000000) {
paddrp->spp_ipv6_flowlabel = stcb->asoc.default_flowlabel & 0x000fffff;
paddrp->spp_flags |= SPP_IPV6_FLOWLABEL;
}
#endif
/* default settings should be these */
if (sctp_stcb_is_feature_on(inp, stcb, SCTP_PCB_FLAGS_DONOT_HEARTBEAT)) {
paddrp->spp_flags |= SPP_HB_DISABLE;
} else {
paddrp->spp_flags |= SPP_HB_ENABLE;
}
if (sctp_stcb_is_feature_on(inp, stcb, SCTP_PCB_FLAGS_DO_NOT_PMTUD)) {
paddrp->spp_flags |= SPP_PMTUD_DISABLE;
} else {
paddrp->spp_flags |= SPP_PMTUD_ENABLE;
}
paddrp->spp_hbinterval = stcb->asoc.heart_beat_delay;
}
paddrp->spp_assoc_id = sctp_get_associd(stcb);
SCTP_TCB_UNLOCK(stcb);
} else {
if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
(inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
(paddrp->spp_assoc_id == SCTP_FUTURE_ASSOC))) {
/* Use endpoint defaults */
SCTP_INP_RLOCK(inp);
paddrp->spp_pathmaxrxt = inp->sctp_ep.def_net_failure;
paddrp->spp_hbinterval = sctp_ticks_to_msecs(inp->sctp_ep.sctp_timeoutticks[SCTP_TIMER_HEARTBEAT]);
paddrp->spp_assoc_id = SCTP_FUTURE_ASSOC;
/* get inp's default */
if (inp->sctp_ep.default_dscp & 0x01) {
paddrp->spp_dscp = inp->sctp_ep.default_dscp & 0xfc;
paddrp->spp_flags |= SPP_DSCP;
}
#ifdef INET6
if ((inp->sctp_flags & SCTP_PCB_FLAGS_BOUND_V6) &&
(inp->sctp_ep.default_flowlabel & 0x80000000)) {
paddrp->spp_ipv6_flowlabel = inp->sctp_ep.default_flowlabel & 0x000fffff;
paddrp->spp_flags |= SPP_IPV6_FLOWLABEL;
}
#endif
paddrp->spp_pathmtu = inp->sctp_ep.default_mtu;
if (sctp_is_feature_off(inp, SCTP_PCB_FLAGS_DONOT_HEARTBEAT)) {
paddrp->spp_flags |= SPP_HB_ENABLE;
} else {
paddrp->spp_flags |= SPP_HB_DISABLE;
}
if (sctp_is_feature_off(inp, SCTP_PCB_FLAGS_DO_NOT_PMTUD)) {
paddrp->spp_flags |= SPP_PMTUD_ENABLE;
} else {
paddrp->spp_flags |= SPP_PMTUD_DISABLE;
}
SCTP_INP_RUNLOCK(inp);
} else {
SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
error = EINVAL;
}
}
if (error == 0) {
*optsize = sizeof(struct sctp_paddrparams);
}
break;
}
case SCTP_GET_PEER_ADDR_INFO:
{
struct sctp_paddrinfo *paddri;
struct sctp_nets *net;
struct sockaddr *addr;
#if defined(INET) && defined(INET6)
struct sockaddr_in sin_store;
#endif
SCTP_CHECK_AND_CAST(paddri, optval, struct sctp_paddrinfo, *optsize);
SCTP_FIND_STCB(inp, stcb, paddri->spinfo_assoc_id);
#if defined(INET) && defined(INET6)
if (paddri->spinfo_address.ss_family == AF_INET6) {
struct sockaddr_in6 *sin6;
sin6 = (struct sockaddr_in6 *)&paddri->spinfo_address;
if (IN6_IS_ADDR_V4MAPPED(&sin6->sin6_addr)) {
in6_sin6_2_sin(&sin_store, sin6);
addr = (struct sockaddr *)&sin_store;
} else {
addr = (struct sockaddr *)&paddri->spinfo_address;
}
} else {
addr = (struct sockaddr *)&paddri->spinfo_address;
}
#else
addr = (struct sockaddr *)&paddri->spinfo_address;
#endif
if (stcb != NULL) {
net = sctp_findnet(stcb, addr);
} else {
/* We increment here since sctp_findassociation_ep_addr() wil
* do a decrement if it finds the stcb as long as the locked
* tcb (last argument) is NOT a TCB.. aka NULL.
*/
net = NULL;
SCTP_INP_INCR_REF(inp);
stcb = sctp_findassociation_ep_addr(&inp, addr, &net, NULL, NULL);
if (stcb == NULL) {
SCTP_INP_DECR_REF(inp);
}
}
if ((stcb != NULL) && (net != NULL)) {
if (net->dest_state & SCTP_ADDR_UNCONFIRMED) {
/* It's unconfirmed */
paddri->spinfo_state = SCTP_UNCONFIRMED;
} else if (net->dest_state & SCTP_ADDR_REACHABLE) {
/* It's active */
paddri->spinfo_state = SCTP_ACTIVE;
} else {
/* It's inactive */
paddri->spinfo_state = SCTP_INACTIVE;
}
paddri->spinfo_cwnd = net->cwnd;
paddri->spinfo_srtt = net->lastsa >> SCTP_RTT_SHIFT;
paddri->spinfo_rto = net->RTO;
paddri->spinfo_assoc_id = sctp_get_associd(stcb);
paddri->spinfo_mtu = net->mtu;
switch (addr->sa_family) {
#if defined(INET)
case AF_INET:
paddri->spinfo_mtu -= SCTP_MIN_V4_OVERHEAD;
break;
#endif
#if defined(INET6)
case AF_INET6:
paddri->spinfo_mtu -= SCTP_MIN_OVERHEAD;
break;
#endif
#if defined(__Userspace__)
case AF_CONN:
paddri->spinfo_mtu -= sizeof(struct sctphdr);
break;
#endif
default:
break;
}
SCTP_TCB_UNLOCK(stcb);
*optsize = sizeof(struct sctp_paddrinfo);
} else {
if (stcb != NULL) {
SCTP_TCB_UNLOCK(stcb);
}
SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOENT);
error = ENOENT;
}
break;
}
case SCTP_PCB_STATUS:
{
struct sctp_pcbinfo *spcb;
SCTP_CHECK_AND_CAST(spcb, optval, struct sctp_pcbinfo, *optsize);
sctp_fill_pcbinfo(spcb);
*optsize = sizeof(struct sctp_pcbinfo);
break;
}
case SCTP_STATUS:
{
struct sctp_nets *net;
struct sctp_status *sstat;
SCTP_CHECK_AND_CAST(sstat, optval, struct sctp_status, *optsize);
SCTP_FIND_STCB(inp, stcb, sstat->sstat_assoc_id);
if (stcb == NULL) {
SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
error = EINVAL;
break;
}
sstat->sstat_state = sctp_map_assoc_state(stcb->asoc.state);
sstat->sstat_assoc_id = sctp_get_associd(stcb);
sstat->sstat_rwnd = stcb->asoc.peers_rwnd;
sstat->sstat_unackdata = stcb->asoc.sent_queue_cnt;
/*
* We can't include chunks that have been passed to
* the socket layer. Only things in queue.
*/
sstat->sstat_penddata = (stcb->asoc.cnt_on_reasm_queue +
stcb->asoc.cnt_on_all_streams);
sstat->sstat_instrms = stcb->asoc.streamincnt;
sstat->sstat_outstrms = stcb->asoc.streamoutcnt;
sstat->sstat_fragmentation_point = sctp_get_frag_point(stcb, &stcb->asoc);
net = stcb->asoc.primary_destination;
if (net != NULL) {
#ifdef HAVE_SA_LEN
memcpy(&sstat->sstat_primary.spinfo_address,
&net->ro._l_addr,
((struct sockaddr *)(&net->ro._l_addr))->sa_len);
#else
switch (stcb->asoc.primary_destination->ro._l_addr.sa.sa_family) {
#if defined(INET)
case AF_INET:
memcpy(&sstat->sstat_primary.spinfo_address,
&net->ro._l_addr,
sizeof(struct sockaddr_in));
break;
#endif
#if defined(INET6)
case AF_INET6:
memcpy(&sstat->sstat_primary.spinfo_address,
&net->ro._l_addr,
sizeof(struct sockaddr_in6));
break;
#endif
#if defined(__Userspace__)
case AF_CONN:
memcpy(&sstat->sstat_primary.spinfo_address,
&net->ro._l_addr,
sizeof(struct sockaddr_conn));
break;
#endif
default:
break;
}
#endif
((struct sockaddr_in *)&sstat->sstat_primary.spinfo_address)->sin_port = stcb->rport;
/*
* Again the user can get info from sctp_constants.h
* for what the state of the network is.
*/
if (net->dest_state & SCTP_ADDR_UNCONFIRMED) {
/* It's unconfirmed */
sstat->sstat_primary.spinfo_state = SCTP_UNCONFIRMED;
} else if (net->dest_state & SCTP_ADDR_REACHABLE) {
/* It's active */
sstat->sstat_primary.spinfo_state = SCTP_ACTIVE;
} else {
/* It's inactive */
sstat->sstat_primary.spinfo_state = SCTP_INACTIVE;
}
sstat->sstat_primary.spinfo_cwnd = net->cwnd;
sstat->sstat_primary.spinfo_srtt = net->lastsa >> SCTP_RTT_SHIFT;
sstat->sstat_primary.spinfo_rto = net->RTO;
sstat->sstat_primary.spinfo_mtu = net->mtu;
switch (stcb->asoc.primary_destination->ro._l_addr.sa.sa_family) {
#if defined(INET)
case AF_INET:
sstat->sstat_primary.spinfo_mtu -= SCTP_MIN_V4_OVERHEAD;
break;
#endif
#if defined(INET6)
case AF_INET6:
sstat->sstat_primary.spinfo_mtu -= SCTP_MIN_OVERHEAD;
break;
#endif
#if defined(__Userspace__)
case AF_CONN:
sstat->sstat_primary.spinfo_mtu -= sizeof(struct sctphdr);
break;
#endif
default:
break;
}
} else {
memset(&sstat->sstat_primary, 0, sizeof(struct sctp_paddrinfo));
}
sstat->sstat_primary.spinfo_assoc_id = sctp_get_associd(stcb);
SCTP_TCB_UNLOCK(stcb);
*optsize = sizeof(struct sctp_status);
break;
}
case SCTP_RTOINFO:
{
struct sctp_rtoinfo *srto;
SCTP_CHECK_AND_CAST(srto, optval, struct sctp_rtoinfo, *optsize);
SCTP_FIND_STCB(inp, stcb, srto->srto_assoc_id);
if (stcb) {
srto->srto_initial = stcb->asoc.initial_rto;
srto->srto_max = stcb->asoc.maxrto;
srto->srto_min = stcb->asoc.minrto;
SCTP_TCB_UNLOCK(stcb);
} else {
if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
(inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
(srto->srto_assoc_id == SCTP_FUTURE_ASSOC))) {
SCTP_INP_RLOCK(inp);
srto->srto_initial = inp->sctp_ep.initial_rto;
srto->srto_max = inp->sctp_ep.sctp_maxrto;
srto->srto_min = inp->sctp_ep.sctp_minrto;
SCTP_INP_RUNLOCK(inp);
} else {
SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
error = EINVAL;
}
}
if (error == 0) {
*optsize = sizeof(struct sctp_rtoinfo);
}
break;
}
case SCTP_TIMEOUTS:
{
struct sctp_timeouts *stimo;
SCTP_CHECK_AND_CAST(stimo, optval, struct sctp_timeouts, *optsize);
SCTP_FIND_STCB(inp, stcb, stimo->stimo_assoc_id);
if (stcb) {
stimo->stimo_init= stcb->asoc.timoinit;
stimo->stimo_data= stcb->asoc.timodata;
stimo->stimo_sack= stcb->asoc.timosack;
stimo->stimo_shutdown= stcb->asoc.timoshutdown;
stimo->stimo_heartbeat= stcb->asoc.timoheartbeat;
stimo->stimo_cookie= stcb->asoc.timocookie;
stimo->stimo_shutdownack= stcb->asoc.timoshutdownack;
SCTP_TCB_UNLOCK(stcb);
*optsize = sizeof(struct sctp_timeouts);
} else {
SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
error = EINVAL;
}
break;
}
case SCTP_ASSOCINFO:
{
struct sctp_assocparams *sasoc;
SCTP_CHECK_AND_CAST(sasoc, optval, struct sctp_assocparams, *optsize);
SCTP_FIND_STCB(inp, stcb, sasoc->sasoc_assoc_id);
if (stcb) {
sasoc->sasoc_cookie_life = sctp_ticks_to_msecs(stcb->asoc.cookie_life);
sasoc->sasoc_asocmaxrxt = stcb->asoc.max_send_times;
sasoc->sasoc_number_peer_destinations = stcb->asoc.numnets;
sasoc->sasoc_peer_rwnd = stcb->asoc.peers_rwnd;
sasoc->sasoc_local_rwnd = stcb->asoc.my_rwnd;
SCTP_TCB_UNLOCK(stcb);
} else {
if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
(inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
(sasoc->sasoc_assoc_id == SCTP_FUTURE_ASSOC))) {
SCTP_INP_RLOCK(inp);
sasoc->sasoc_cookie_life = sctp_ticks_to_msecs(inp->sctp_ep.def_cookie_life);
sasoc->sasoc_asocmaxrxt = inp->sctp_ep.max_send_times;
sasoc->sasoc_number_peer_destinations = 0;
sasoc->sasoc_peer_rwnd = 0;
sasoc->sasoc_local_rwnd = sbspace(&inp->sctp_socket->so_rcv);
SCTP_INP_RUNLOCK(inp);
} else {
SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
error = EINVAL;
}
}
if (error == 0) {
*optsize = sizeof(struct sctp_assocparams);
}
break;
}
case SCTP_DEFAULT_SEND_PARAM:
{
struct sctp_sndrcvinfo *s_info;
SCTP_CHECK_AND_CAST(s_info, optval, struct sctp_sndrcvinfo, *optsize);
SCTP_FIND_STCB(inp, stcb, s_info->sinfo_assoc_id);
if (stcb) {
memcpy(s_info, &stcb->asoc.def_send, sizeof(stcb->asoc.def_send));
SCTP_TCB_UNLOCK(stcb);
} else {
if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
(inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
(s_info->sinfo_assoc_id == SCTP_FUTURE_ASSOC))) {
SCTP_INP_RLOCK(inp);
memcpy(s_info, &inp->def_send, sizeof(inp->def_send));
SCTP_INP_RUNLOCK(inp);
} else {
SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
error = EINVAL;
}
}
if (error == 0) {
*optsize = sizeof(struct sctp_sndrcvinfo);
}
break;
}
case SCTP_INITMSG:
{
struct sctp_initmsg *sinit;
SCTP_CHECK_AND_CAST(sinit, optval, struct sctp_initmsg, *optsize);
SCTP_INP_RLOCK(inp);
sinit->sinit_num_ostreams = inp->sctp_ep.pre_open_stream_count;
sinit->sinit_max_instreams = inp->sctp_ep.max_open_streams_intome;
sinit->sinit_max_attempts = inp->sctp_ep.max_init_times;
sinit->sinit_max_init_timeo = inp->sctp_ep.initial_init_rto_max;
SCTP_INP_RUNLOCK(inp);
*optsize = sizeof(struct sctp_initmsg);
break;
}
case SCTP_PRIMARY_ADDR:
/* we allow a "get" operation on this */
{
struct sctp_setprim *ssp;
SCTP_CHECK_AND_CAST(ssp, optval, struct sctp_setprim, *optsize);
SCTP_FIND_STCB(inp, stcb, ssp->ssp_assoc_id);
if (stcb) {
union sctp_sockstore *addr;
addr = &stcb->asoc.primary_destination->ro._l_addr;
switch (addr->sa.sa_family) {
#ifdef INET
case AF_INET:
#ifdef INET6
if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_NEEDS_MAPPED_V4)) {
in6_sin_2_v4mapsin6(&addr->sin,
(struct sockaddr_in6 *)&ssp->ssp_addr);
} else {
memcpy(&ssp->ssp_addr, &addr->sin, sizeof(struct sockaddr_in));
}
#else
memcpy(&ssp->ssp_addr, &addr->sin, sizeof(struct sockaddr_in));
#endif
break;
#endif
#ifdef INET6
case AF_INET6:
memcpy(&ssp->ssp_addr, &addr->sin6, sizeof(struct sockaddr_in6));
break;
#endif
#if defined(__Userspace__)
case AF_CONN:
memcpy(&ssp->ssp_addr, &addr->sconn, sizeof(struct sockaddr_conn));
break;
#endif
default:
break;
}
SCTP_TCB_UNLOCK(stcb);
*optsize = sizeof(struct sctp_setprim);
} else {
SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
error = EINVAL;
}
break;
}
case SCTP_HMAC_IDENT:
{
struct sctp_hmacalgo *shmac;
sctp_hmaclist_t *hmaclist;
uint32_t size;
int i;
SCTP_CHECK_AND_CAST(shmac, optval, struct sctp_hmacalgo, *optsize);
SCTP_INP_RLOCK(inp);
hmaclist = inp->sctp_ep.local_hmacs;
if (hmaclist == NULL) {
/* no HMACs to return */
*optsize = sizeof(*shmac);
SCTP_INP_RUNLOCK(inp);
break;
}
/* is there room for all of the hmac ids? */
size = sizeof(*shmac) + (hmaclist->num_algo *
sizeof(shmac->shmac_idents[0]));
if ((size_t)(*optsize) < size) {
SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
error = EINVAL;
SCTP_INP_RUNLOCK(inp);
break;
}
/* copy in the list */
shmac->shmac_number_of_idents = hmaclist->num_algo;
for (i = 0; i < hmaclist->num_algo; i++) {
shmac->shmac_idents[i] = hmaclist->hmac[i];
}
SCTP_INP_RUNLOCK(inp);
*optsize = size;
break;
}
case SCTP_AUTH_ACTIVE_KEY:
{
struct sctp_authkeyid *scact;
SCTP_CHECK_AND_CAST(scact, optval, struct sctp_authkeyid, *optsize);
SCTP_FIND_STCB(inp, stcb, scact->scact_assoc_id);
if (stcb) {
/* get the active key on the assoc */
scact->scact_keynumber = stcb->asoc.authinfo.active_keyid;
SCTP_TCB_UNLOCK(stcb);
} else {
if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
(inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
(scact->scact_assoc_id == SCTP_FUTURE_ASSOC))) {
/* get the endpoint active key */
SCTP_INP_RLOCK(inp);
scact->scact_keynumber = inp->sctp_ep.default_keyid;
SCTP_INP_RUNLOCK(inp);
} else {
SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
error = EINVAL;
}
}
if (error == 0) {
*optsize = sizeof(struct sctp_authkeyid);
}
break;
}
case SCTP_LOCAL_AUTH_CHUNKS:
{
struct sctp_authchunks *sac;
sctp_auth_chklist_t *chklist = NULL;
size_t size = 0;
SCTP_CHECK_AND_CAST(sac, optval, struct sctp_authchunks, *optsize);
SCTP_FIND_STCB(inp, stcb, sac->gauth_assoc_id);
if (stcb) {
/* get off the assoc */
chklist = stcb->asoc.local_auth_chunks;
/* is there enough space? */
size = sctp_auth_get_chklist_size(chklist);
if (*optsize < (sizeof(struct sctp_authchunks) + size)) {
error = EINVAL;
SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
} else {
/* copy in the chunks */
(void)sctp_serialize_auth_chunks(chklist, sac->gauth_chunks);
sac->gauth_number_of_chunks = (uint32_t)size;
*optsize = sizeof(struct sctp_authchunks) + size;
}
SCTP_TCB_UNLOCK(stcb);
} else {
if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
(inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
(sac->gauth_assoc_id == SCTP_FUTURE_ASSOC))) {
/* get off the endpoint */
SCTP_INP_RLOCK(inp);
chklist = inp->sctp_ep.local_auth_chunks;
/* is there enough space? */
size = sctp_auth_get_chklist_size(chklist);
if (*optsize < (sizeof(struct sctp_authchunks) + size)) {
error = EINVAL;
SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
} else {
/* copy in the chunks */
(void)sctp_serialize_auth_chunks(chklist, sac->gauth_chunks);
sac->gauth_number_of_chunks = (uint32_t)size;
*optsize = sizeof(struct sctp_authchunks) + size;
}
SCTP_INP_RUNLOCK(inp);
} else {
SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
error = EINVAL;
}
}
break;
}
case SCTP_PEER_AUTH_CHUNKS:
{
struct sctp_authchunks *sac;
sctp_auth_chklist_t *chklist = NULL;
size_t size = 0;
SCTP_CHECK_AND_CAST(sac, optval, struct sctp_authchunks, *optsize);
SCTP_FIND_STCB(inp, stcb, sac->gauth_assoc_id);
if (stcb) {
/* get off the assoc */
chklist = stcb->asoc.peer_auth_chunks;
/* is there enough space? */
size = sctp_auth_get_chklist_size(chklist);
if (*optsize < (sizeof(struct sctp_authchunks) + size)) {
error = EINVAL;
SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
} else {
/* copy in the chunks */
(void)sctp_serialize_auth_chunks(chklist, sac->gauth_chunks);
sac->gauth_number_of_chunks = (uint32_t)size;
*optsize = sizeof(struct sctp_authchunks) + size;
}
SCTP_TCB_UNLOCK(stcb);
} else {
SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOENT);
error = ENOENT;
}
break;
}
#if defined(HAVE_SCTP_PEELOFF_SOCKOPT)
case SCTP_PEELOFF:
{
struct sctp_peeloff_opt *peeloff;
SCTP_CHECK_AND_CAST(peeloff, optval, struct sctp_peeloff_opt, *optsize);
/* do the peeloff */
error = sctp_peeloff_option(p, peeloff);
if (error == 0) {
*optsize = sizeof(struct sctp_peeloff_opt);
}
}
break;
#endif /* HAVE_SCTP_PEELOFF_SOCKOPT */
case SCTP_EVENT:
{
struct sctp_event *event;
uint32_t event_type;
SCTP_CHECK_AND_CAST(event, optval, struct sctp_event, *optsize);
SCTP_FIND_STCB(inp, stcb, event->se_assoc_id);
switch (event->se_type) {
case SCTP_ASSOC_CHANGE:
event_type = SCTP_PCB_FLAGS_RECVASSOCEVNT;
break;
case SCTP_PEER_ADDR_CHANGE:
event_type = SCTP_PCB_FLAGS_RECVPADDREVNT;
break;
case SCTP_REMOTE_ERROR:
event_type = SCTP_PCB_FLAGS_RECVPEERERR;
break;
case SCTP_SEND_FAILED:
event_type = SCTP_PCB_FLAGS_RECVSENDFAILEVNT;
break;
case SCTP_SHUTDOWN_EVENT:
event_type = SCTP_PCB_FLAGS_RECVSHUTDOWNEVNT;
break;
case SCTP_ADAPTATION_INDICATION:
event_type = SCTP_PCB_FLAGS_ADAPTATIONEVNT;
break;
case SCTP_PARTIAL_DELIVERY_EVENT:
event_type = SCTP_PCB_FLAGS_PDAPIEVNT;
break;
case SCTP_AUTHENTICATION_EVENT:
event_type = SCTP_PCB_FLAGS_AUTHEVNT;
break;
case SCTP_STREAM_RESET_EVENT:
event_type = SCTP_PCB_FLAGS_STREAM_RESETEVNT;
break;
case SCTP_SENDER_DRY_EVENT:
event_type = SCTP_PCB_FLAGS_DRYEVNT;
break;
case SCTP_NOTIFICATIONS_STOPPED_EVENT:
event_type = 0;
SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOTSUP);
error = ENOTSUP;
break;
case SCTP_ASSOC_RESET_EVENT:
event_type = SCTP_PCB_FLAGS_ASSOC_RESETEVNT;
break;
case SCTP_STREAM_CHANGE_EVENT:
event_type = SCTP_PCB_FLAGS_STREAM_CHANGEEVNT;
break;
case SCTP_SEND_FAILED_EVENT:
event_type = SCTP_PCB_FLAGS_RECVNSENDFAILEVNT;
break;
default:
event_type = 0;
SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
error = EINVAL;
break;
}
if (event_type > 0) {
if (stcb) {
event->se_on = sctp_stcb_is_feature_on(inp, stcb, event_type);
} else {
if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
(inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
(event->se_assoc_id == SCTP_FUTURE_ASSOC))) {
SCTP_INP_RLOCK(inp);
event->se_on = sctp_is_feature_on(inp, event_type);
SCTP_INP_RUNLOCK(inp);
} else {
SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
error = EINVAL;
}
}
}
if (stcb != NULL) {
SCTP_TCB_UNLOCK(stcb);
}
if (error == 0) {
*optsize = sizeof(struct sctp_event);
}
break;
}
case SCTP_RECVRCVINFO:
if (*optsize < sizeof(int)) {
SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
error = EINVAL;
} else {
SCTP_INP_RLOCK(inp);
*(int *)optval = sctp_is_feature_on(inp, SCTP_PCB_FLAGS_RECVRCVINFO);
SCTP_INP_RUNLOCK(inp);
*optsize = sizeof(int);
}
break;
case SCTP_RECVNXTINFO:
if (*optsize < sizeof(int)) {
SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
error = EINVAL;
} else {
SCTP_INP_RLOCK(inp);
*(int *)optval = sctp_is_feature_on(inp, SCTP_PCB_FLAGS_RECVNXTINFO);
SCTP_INP_RUNLOCK(inp);
*optsize = sizeof(int);
}
break;
case SCTP_DEFAULT_SNDINFO:
{
struct sctp_sndinfo *info;
SCTP_CHECK_AND_CAST(info, optval, struct sctp_sndinfo, *optsize);
SCTP_FIND_STCB(inp, stcb, info->snd_assoc_id);
if (stcb) {
info->snd_sid = stcb->asoc.def_send.sinfo_stream;
info->snd_flags = stcb->asoc.def_send.sinfo_flags;
info->snd_flags &= 0xfff0;
info->snd_ppid = stcb->asoc.def_send.sinfo_ppid;
info->snd_context = stcb->asoc.def_send.sinfo_context;
SCTP_TCB_UNLOCK(stcb);
} else {
if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
(inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
(info->snd_assoc_id == SCTP_FUTURE_ASSOC))) {
SCTP_INP_RLOCK(inp);
info->snd_sid = inp->def_send.sinfo_stream;
info->snd_flags = inp->def_send.sinfo_flags;
info->snd_flags &= 0xfff0;
info->snd_ppid = inp->def_send.sinfo_ppid;
info->snd_context = inp->def_send.sinfo_context;
SCTP_INP_RUNLOCK(inp);
} else {
SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
error = EINVAL;
}
}
if (error == 0) {
*optsize = sizeof(struct sctp_sndinfo);
}
break;
}
case SCTP_DEFAULT_PRINFO:
{
struct sctp_default_prinfo *info;
SCTP_CHECK_AND_CAST(info, optval, struct sctp_default_prinfo, *optsize);
SCTP_FIND_STCB(inp, stcb, info->pr_assoc_id);
if (stcb) {
info->pr_policy = PR_SCTP_POLICY(stcb->asoc.def_send.sinfo_flags);
info->pr_value = stcb->asoc.def_send.sinfo_timetolive;
SCTP_TCB_UNLOCK(stcb);
} else {
if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
(inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
(info->pr_assoc_id == SCTP_FUTURE_ASSOC))) {
SCTP_INP_RLOCK(inp);
info->pr_policy = PR_SCTP_POLICY(inp->def_send.sinfo_flags);
info->pr_value = inp->def_send.sinfo_timetolive;
SCTP_INP_RUNLOCK(inp);
} else {
SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
error = EINVAL;
}
}
if (error == 0) {
*optsize = sizeof(struct sctp_default_prinfo);
}
break;
}
case SCTP_PEER_ADDR_THLDS:
{
struct sctp_paddrthlds *thlds;
struct sctp_nets *net;
struct sockaddr *addr;
#if defined(INET) && defined(INET6)
struct sockaddr_in sin_store;
#endif
SCTP_CHECK_AND_CAST(thlds, optval, struct sctp_paddrthlds, *optsize);
SCTP_FIND_STCB(inp, stcb, thlds->spt_assoc_id);
#if defined(INET) && defined(INET6)
if (thlds->spt_address.ss_family == AF_INET6) {
struct sockaddr_in6 *sin6;
sin6 = (struct sockaddr_in6 *)&thlds->spt_address;
if (IN6_IS_ADDR_V4MAPPED(&sin6->sin6_addr)) {
in6_sin6_2_sin(&sin_store, sin6);
addr = (struct sockaddr *)&sin_store;
} else {
addr = (struct sockaddr *)&thlds->spt_address;
}
} else {
addr = (struct sockaddr *)&thlds->spt_address;
}
#else
addr = (struct sockaddr *)&thlds->spt_address;
#endif
if (stcb != NULL) {
net = sctp_findnet(stcb, addr);
} else {
/* We increment here since sctp_findassociation_ep_addr() wil
* do a decrement if it finds the stcb as long as the locked
* tcb (last argument) is NOT a TCB.. aka NULL.
*/
net = NULL;
SCTP_INP_INCR_REF(inp);
stcb = sctp_findassociation_ep_addr(&inp, addr, &net, NULL, NULL);
if (stcb == NULL) {
SCTP_INP_DECR_REF(inp);
}
}
if ((stcb != NULL) && (net == NULL)) {
#ifdef INET
if (addr->sa_family == AF_INET) {
struct sockaddr_in *sin;
sin = (struct sockaddr_in *)addr;
if (sin->sin_addr.s_addr != INADDR_ANY) {
error = EINVAL;
SCTP_TCB_UNLOCK(stcb);
SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
break;
}
} else
#endif
#ifdef INET6
if (addr->sa_family == AF_INET6) {
struct sockaddr_in6 *sin6;
sin6 = (struct sockaddr_in6 *)addr;
if (!IN6_IS_ADDR_UNSPECIFIED(&sin6->sin6_addr)) {
error = EINVAL;
SCTP_TCB_UNLOCK(stcb);
SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
break;
}
} else
#endif
#if defined(__Userspace__)
if (addr->sa_family == AF_CONN) {
struct sockaddr_conn *sconn;
sconn = (struct sockaddr_conn *)addr;
if (sconn->sconn_addr != NULL) {
error = EINVAL;
SCTP_TCB_UNLOCK(stcb);
SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
break;
}
} else
#endif
{
error = EAFNOSUPPORT;
SCTP_TCB_UNLOCK(stcb);
SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
break;
}
}
if (stcb != NULL) {
if (net != NULL) {
thlds->spt_pathmaxrxt = net->failure_threshold;
thlds->spt_pathpfthld = net->pf_threshold;
thlds->spt_pathcpthld = 0xffff;
} else {
thlds->spt_pathmaxrxt = stcb->asoc.def_net_failure;
thlds->spt_pathpfthld = stcb->asoc.def_net_pf_threshold;
thlds->spt_pathcpthld = 0xffff;
}
thlds->spt_assoc_id = sctp_get_associd(stcb);
SCTP_TCB_UNLOCK(stcb);
} else {
if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
(inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
(thlds->spt_assoc_id == SCTP_FUTURE_ASSOC))) {
/* Use endpoint defaults */
SCTP_INP_RLOCK(inp);
thlds->spt_pathmaxrxt = inp->sctp_ep.def_net_failure;
thlds->spt_pathpfthld = inp->sctp_ep.def_net_pf_threshold;
thlds->spt_pathcpthld = 0xffff;
SCTP_INP_RUNLOCK(inp);
} else {
SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
error = EINVAL;
}
}
if (error == 0) {
*optsize = sizeof(struct sctp_paddrthlds);
}
break;
}
case SCTP_REMOTE_UDP_ENCAPS_PORT:
{
struct sctp_udpencaps *encaps;
struct sctp_nets *net;
struct sockaddr *addr;
#if defined(INET) && defined(INET6)
struct sockaddr_in sin_store;
#endif
SCTP_CHECK_AND_CAST(encaps, optval, struct sctp_udpencaps, *optsize);
SCTP_FIND_STCB(inp, stcb, encaps->sue_assoc_id);
#if defined(INET) && defined(INET6)
if (encaps->sue_address.ss_family == AF_INET6) {
struct sockaddr_in6 *sin6;
sin6 = (struct sockaddr_in6 *)&encaps->sue_address;
if (IN6_IS_ADDR_V4MAPPED(&sin6->sin6_addr)) {
in6_sin6_2_sin(&sin_store, sin6);
addr = (struct sockaddr *)&sin_store;
} else {
addr = (struct sockaddr *)&encaps->sue_address;
}
} else {
addr = (struct sockaddr *)&encaps->sue_address;
}
#else
addr = (struct sockaddr *)&encaps->sue_address;
#endif
if (stcb) {
net = sctp_findnet(stcb, addr);
} else {
/* We increment here since sctp_findassociation_ep_addr() wil
* do a decrement if it finds the stcb as long as the locked
* tcb (last argument) is NOT a TCB.. aka NULL.
*/
net = NULL;
SCTP_INP_INCR_REF(inp);
stcb = sctp_findassociation_ep_addr(&inp, addr, &net, NULL, NULL);
if (stcb == NULL) {
SCTP_INP_DECR_REF(inp);
}
}
if ((stcb != NULL) && (net == NULL)) {
#ifdef INET
if (addr->sa_family == AF_INET) {
struct sockaddr_in *sin;
sin = (struct sockaddr_in *)addr;
if (sin->sin_addr.s_addr != INADDR_ANY) {
error = EINVAL;
SCTP_TCB_UNLOCK(stcb);
SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
break;
}
} else
#endif
#ifdef INET6
if (addr->sa_family == AF_INET6) {
struct sockaddr_in6 *sin6;
sin6 = (struct sockaddr_in6 *)addr;
if (!IN6_IS_ADDR_UNSPECIFIED(&sin6->sin6_addr)) {
error = EINVAL;
SCTP_TCB_UNLOCK(stcb);
SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
break;
}
} else
#endif
#if defined(__Userspace__)
if (addr->sa_family == AF_CONN) {
struct sockaddr_conn *sconn;
sconn = (struct sockaddr_conn *)addr;
if (sconn->sconn_addr != NULL) {
error = EINVAL;
SCTP_TCB_UNLOCK(stcb);
SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
break;
}
} else
#endif
{
error = EAFNOSUPPORT;
SCTP_TCB_UNLOCK(stcb);
SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
break;
}
}
if (stcb != NULL) {
if (net) {
encaps->sue_port = net->port;
} else {
encaps->sue_port = stcb->asoc.port;
}
SCTP_TCB_UNLOCK(stcb);
} else {
if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
(inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
(encaps->sue_assoc_id == SCTP_FUTURE_ASSOC))) {
SCTP_INP_RLOCK(inp);
encaps->sue_port = inp->sctp_ep.port;
SCTP_INP_RUNLOCK(inp);
} else {
SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
error = EINVAL;
}
}
if (error == 0) {
*optsize = sizeof(struct sctp_udpencaps);
}
break;
}
case SCTP_ECN_SUPPORTED:
{
struct sctp_assoc_value *av;
SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, *optsize);
SCTP_FIND_STCB(inp, stcb, av->assoc_id);
if (stcb) {
av->assoc_value = stcb->asoc.ecn_supported;
SCTP_TCB_UNLOCK(stcb);
} else {
if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
(inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
(av->assoc_id == SCTP_FUTURE_ASSOC))) {
SCTP_INP_RLOCK(inp);
av->assoc_value = inp->ecn_supported;
SCTP_INP_RUNLOCK(inp);
} else {
SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
error = EINVAL;
}
}
if (error == 0) {
*optsize = sizeof(struct sctp_assoc_value);
}
break;
}
case SCTP_PR_SUPPORTED:
{
struct sctp_assoc_value *av;
SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, *optsize);
SCTP_FIND_STCB(inp, stcb, av->assoc_id);
if (stcb) {
av->assoc_value = stcb->asoc.prsctp_supported;
SCTP_TCB_UNLOCK(stcb);
} else {
if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
(inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
(av->assoc_id == SCTP_FUTURE_ASSOC))) {
SCTP_INP_RLOCK(inp);
av->assoc_value = inp->prsctp_supported;
SCTP_INP_RUNLOCK(inp);
} else {
SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
error = EINVAL;
}
}
if (error == 0) {
*optsize = sizeof(struct sctp_assoc_value);
}
break;
}
case SCTP_AUTH_SUPPORTED:
{
struct sctp_assoc_value *av;
SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, *optsize);
SCTP_FIND_STCB(inp, stcb, av->assoc_id);
if (stcb) {
av->assoc_value = stcb->asoc.auth_supported;
SCTP_TCB_UNLOCK(stcb);
} else {
if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
(inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
(av->assoc_id == SCTP_FUTURE_ASSOC))) {
SCTP_INP_RLOCK(inp);
av->assoc_value = inp->auth_supported;
SCTP_INP_RUNLOCK(inp);
} else {
SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
error = EINVAL;
}
}
if (error == 0) {
*optsize = sizeof(struct sctp_assoc_value);
}
break;
}
case SCTP_ASCONF_SUPPORTED:
{
struct sctp_assoc_value *av;
SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, *optsize);
SCTP_FIND_STCB(inp, stcb, av->assoc_id);
if (stcb) {
av->assoc_value = stcb->asoc.asconf_supported;
SCTP_TCB_UNLOCK(stcb);
} else {
if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
(inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
(av->assoc_id == SCTP_FUTURE_ASSOC))) {
SCTP_INP_RLOCK(inp);
av->assoc_value = inp->asconf_supported;
SCTP_INP_RUNLOCK(inp);
} else {
SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
error = EINVAL;
}
}
if (error == 0) {
*optsize = sizeof(struct sctp_assoc_value);
}
break;
}
case SCTP_RECONFIG_SUPPORTED:
{
struct sctp_assoc_value *av;
SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, *optsize);
SCTP_FIND_STCB(inp, stcb, av->assoc_id);
if (stcb) {
av->assoc_value = stcb->asoc.reconfig_supported;
SCTP_TCB_UNLOCK(stcb);
} else {
if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
(inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
(av->assoc_id == SCTP_FUTURE_ASSOC))) {
SCTP_INP_RLOCK(inp);
av->assoc_value = inp->reconfig_supported;
SCTP_INP_RUNLOCK(inp);
} else {
SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
error = EINVAL;
}
}
if (error == 0) {
*optsize = sizeof(struct sctp_assoc_value);
}
break;
}
case SCTP_NRSACK_SUPPORTED:
{
struct sctp_assoc_value *av;
SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, *optsize);
SCTP_FIND_STCB(inp, stcb, av->assoc_id);
if (stcb) {
av->assoc_value = stcb->asoc.nrsack_supported;
SCTP_TCB_UNLOCK(stcb);
} else {
if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
(inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
(av->assoc_id == SCTP_FUTURE_ASSOC))) {
SCTP_INP_RLOCK(inp);
av->assoc_value = inp->nrsack_supported;
SCTP_INP_RUNLOCK(inp);
} else {
SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
error = EINVAL;
}
}
if (error == 0) {
*optsize = sizeof(struct sctp_assoc_value);
}
break;
}
case SCTP_PKTDROP_SUPPORTED:
{
struct sctp_assoc_value *av;
SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, *optsize);
SCTP_FIND_STCB(inp, stcb, av->assoc_id);
if (stcb) {
av->assoc_value = stcb->asoc.pktdrop_supported;
SCTP_TCB_UNLOCK(stcb);
} else {
if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
(inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
(av->assoc_id == SCTP_FUTURE_ASSOC))) {
SCTP_INP_RLOCK(inp);
av->assoc_value = inp->pktdrop_supported;
SCTP_INP_RUNLOCK(inp);
} else {
SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
error = EINVAL;
}
}
if (error == 0) {
*optsize = sizeof(struct sctp_assoc_value);
}
break;
}
case SCTP_ENABLE_STREAM_RESET:
{
struct sctp_assoc_value *av;
SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, *optsize);
SCTP_FIND_STCB(inp, stcb, av->assoc_id);
if (stcb) {
av->assoc_value = (uint32_t)stcb->asoc.local_strreset_support;
SCTP_TCB_UNLOCK(stcb);
} else {
if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
(inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
(av->assoc_id == SCTP_FUTURE_ASSOC))) {
SCTP_INP_RLOCK(inp);
av->assoc_value = (uint32_t)inp->local_strreset_support;
SCTP_INP_RUNLOCK(inp);
} else {
SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
error = EINVAL;
}
}
if (error == 0) {
*optsize = sizeof(struct sctp_assoc_value);
}
break;
}
case SCTP_PR_STREAM_STATUS:
{
struct sctp_prstatus *sprstat;
uint16_t sid;
uint16_t policy;
SCTP_CHECK_AND_CAST(sprstat, optval, struct sctp_prstatus, *optsize);
SCTP_FIND_STCB(inp, stcb, sprstat->sprstat_assoc_id);
sid = sprstat->sprstat_sid;
policy = sprstat->sprstat_policy;
#if defined(SCTP_DETAILED_STR_STATS)
if ((stcb != NULL) &&
(sid < stcb->asoc.streamoutcnt) &&
(policy != SCTP_PR_SCTP_NONE) &&
((policy <= SCTP_PR_SCTP_MAX) ||
(policy == SCTP_PR_SCTP_ALL))) {
if (policy == SCTP_PR_SCTP_ALL) {
sprstat->sprstat_abandoned_unsent = stcb->asoc.strmout[sid].abandoned_unsent[0];
sprstat->sprstat_abandoned_sent = stcb->asoc.strmout[sid].abandoned_sent[0];
} else {
sprstat->sprstat_abandoned_unsent = stcb->asoc.strmout[sid].abandoned_unsent[policy];
sprstat->sprstat_abandoned_sent = stcb->asoc.strmout[sid].abandoned_sent[policy];
}
#else
if ((stcb != NULL) &&
(sid < stcb->asoc.streamoutcnt) &&
(policy == SCTP_PR_SCTP_ALL)) {
sprstat->sprstat_abandoned_unsent = stcb->asoc.strmout[sid].abandoned_unsent[0];
sprstat->sprstat_abandoned_sent = stcb->asoc.strmout[sid].abandoned_sent[0];
#endif
} else {
SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
error = EINVAL;
}
if (stcb != NULL) {
SCTP_TCB_UNLOCK(stcb);
}
if (error == 0) {
*optsize = sizeof(struct sctp_prstatus);
}
break;
}
case SCTP_PR_ASSOC_STATUS:
{
struct sctp_prstatus *sprstat;
uint16_t policy;
SCTP_CHECK_AND_CAST(sprstat, optval, struct sctp_prstatus, *optsize);
SCTP_FIND_STCB(inp, stcb, sprstat->sprstat_assoc_id);
policy = sprstat->sprstat_policy;
if ((stcb != NULL) &&
(policy != SCTP_PR_SCTP_NONE) &&
((policy <= SCTP_PR_SCTP_MAX) ||
(policy == SCTP_PR_SCTP_ALL))) {
if (policy == SCTP_PR_SCTP_ALL) {
sprstat->sprstat_abandoned_unsent = stcb->asoc.abandoned_unsent[0];
sprstat->sprstat_abandoned_sent = stcb->asoc.abandoned_sent[0];
} else {
sprstat->sprstat_abandoned_unsent = stcb->asoc.abandoned_unsent[policy];
sprstat->sprstat_abandoned_sent = stcb->asoc.abandoned_sent[policy];
}
} else {
SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
error = EINVAL;
}
if (stcb != NULL) {
SCTP_TCB_UNLOCK(stcb);
}
if (error == 0) {
*optsize = sizeof(struct sctp_prstatus);
}
break;
}
case SCTP_MAX_CWND:
{
struct sctp_assoc_value *av;
SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, *optsize);
SCTP_FIND_STCB(inp, stcb, av->assoc_id);
if (stcb) {
av->assoc_value = stcb->asoc.max_cwnd;
SCTP_TCB_UNLOCK(stcb);
} else {
if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
(inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
(av->assoc_id == SCTP_FUTURE_ASSOC))) {
SCTP_INP_RLOCK(inp);
av->assoc_value = inp->max_cwnd;
SCTP_INP_RUNLOCK(inp);
} else {
SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
error = EINVAL;
}
}
if (error == 0) {
*optsize = sizeof(struct sctp_assoc_value);
}
break;
}
default:
SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOPROTOOPT);
error = ENOPROTOOPT;
break;
} /* end switch (sopt->sopt_name) */
if (error) {
*optsize = 0;
}
return (error);
}
#if defined(__Userspace__)
int
#else
static int
#endif
sctp_setopt(struct socket *so, int optname, void *optval, size_t optsize,
void *p)
{
int error, set_opt;
uint32_t *mopt;
struct sctp_tcb *stcb = NULL;
struct sctp_inpcb *inp = NULL;
uint32_t vrf_id;
if (optval == NULL) {
SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
return (EINVAL);
}
inp = (struct sctp_inpcb *)so->so_pcb;
if (inp == NULL) {
SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
return (EINVAL);
}
vrf_id = inp->def_vrf_id;
error = 0;
switch (optname) {
case SCTP_NODELAY:
case SCTP_AUTOCLOSE:
case SCTP_AUTO_ASCONF:
case SCTP_EXPLICIT_EOR:
case SCTP_DISABLE_FRAGMENTS:
case SCTP_USE_EXT_RCVINFO:
case SCTP_I_WANT_MAPPED_V4_ADDR:
/* copy in the option value */
SCTP_CHECK_AND_CAST(mopt, optval, uint32_t, optsize);
set_opt = 0;
if (error)
break;
switch (optname) {
case SCTP_DISABLE_FRAGMENTS:
set_opt = SCTP_PCB_FLAGS_NO_FRAGMENT;
break;
case SCTP_AUTO_ASCONF:
/*
* NOTE: we don't really support this flag
*/
if (inp->sctp_flags & SCTP_PCB_FLAGS_BOUNDALL) {
/* only valid for bound all sockets */
if ((SCTP_BASE_SYSCTL(sctp_auto_asconf) == 0) &&
(*mopt != 0)) {
/* forbidden by admin */
SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EPERM);
return (EPERM);
}
set_opt = SCTP_PCB_FLAGS_AUTO_ASCONF;
} else {
SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
return (EINVAL);
}
break;
case SCTP_EXPLICIT_EOR:
set_opt = SCTP_PCB_FLAGS_EXPLICIT_EOR;
break;
case SCTP_USE_EXT_RCVINFO:
set_opt = SCTP_PCB_FLAGS_EXT_RCVINFO;
break;
case SCTP_I_WANT_MAPPED_V4_ADDR:
if (inp->sctp_flags & SCTP_PCB_FLAGS_BOUND_V6) {
set_opt = SCTP_PCB_FLAGS_NEEDS_MAPPED_V4;
} else {
SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
return (EINVAL);
}
break;
case SCTP_NODELAY:
set_opt = SCTP_PCB_FLAGS_NODELAY;
break;
case SCTP_AUTOCLOSE:
if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
(inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL)) {
SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
return (EINVAL);
}
set_opt = SCTP_PCB_FLAGS_AUTOCLOSE;
/*
* The value is in ticks. Note this does not effect
* old associations, only new ones.
*/
inp->sctp_ep.auto_close_time = sctp_secs_to_ticks(*mopt);
break;
}
SCTP_INP_WLOCK(inp);
if (*mopt != 0) {
sctp_feature_on(inp, set_opt);
} else {
sctp_feature_off(inp, set_opt);
}
SCTP_INP_WUNLOCK(inp);
break;
case SCTP_REUSE_PORT:
{
SCTP_CHECK_AND_CAST(mopt, optval, uint32_t, optsize);
if ((inp->sctp_flags & SCTP_PCB_FLAGS_UNBOUND) == 0) {
/* Can't set it after we are bound */
error = EINVAL;
break;
}
if ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE)) {
/* Can't do this for a 1-m socket */
error = EINVAL;
break;
}
if (optval)
sctp_feature_on(inp, SCTP_PCB_FLAGS_PORTREUSE);
else
sctp_feature_off(inp, SCTP_PCB_FLAGS_PORTREUSE);
break;
}
case SCTP_PARTIAL_DELIVERY_POINT:
{
uint32_t *value;
SCTP_CHECK_AND_CAST(value, optval, uint32_t, optsize);
if (*value > SCTP_SB_LIMIT_RCV(so)) {
SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
error = EINVAL;
break;
}
inp->partial_delivery_point = *value;
break;
}
case SCTP_FRAGMENT_INTERLEAVE:
/* not yet until we re-write sctp_recvmsg() */
{
uint32_t *level;
SCTP_CHECK_AND_CAST(level, optval, uint32_t, optsize);
if (*level == SCTP_FRAG_LEVEL_2) {
sctp_feature_on(inp, SCTP_PCB_FLAGS_FRAG_INTERLEAVE);
sctp_feature_on(inp, SCTP_PCB_FLAGS_INTERLEAVE_STRMS);
} else if (*level == SCTP_FRAG_LEVEL_1) {
sctp_feature_on(inp, SCTP_PCB_FLAGS_FRAG_INTERLEAVE);
sctp_feature_off(inp, SCTP_PCB_FLAGS_INTERLEAVE_STRMS);
} else if (*level == SCTP_FRAG_LEVEL_0) {
sctp_feature_off(inp, SCTP_PCB_FLAGS_FRAG_INTERLEAVE);
sctp_feature_off(inp, SCTP_PCB_FLAGS_INTERLEAVE_STRMS);
} else {
SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
error = EINVAL;
}
break;
}
case SCTP_INTERLEAVING_SUPPORTED:
{
struct sctp_assoc_value *av;
SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, optsize);
SCTP_FIND_STCB(inp, stcb, av->assoc_id);
if (stcb) {
SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
error = EINVAL;
SCTP_TCB_UNLOCK(stcb);
} else {
if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
(inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
(av->assoc_id == SCTP_FUTURE_ASSOC))) {
SCTP_INP_WLOCK(inp);
if (av->assoc_value == 0) {
inp->idata_supported = 0;
} else {
if ((sctp_is_feature_on(inp, SCTP_PCB_FLAGS_FRAG_INTERLEAVE)) &&
(sctp_is_feature_on(inp, SCTP_PCB_FLAGS_INTERLEAVE_STRMS))) {
inp->idata_supported = 1;
} else {
/* Must have Frag interleave and stream interleave on */
SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
error = EINVAL;
}
}
SCTP_INP_WUNLOCK(inp);
} else {
SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
error = EINVAL;
}
}
break;
}
case SCTP_CMT_ON_OFF:
if (SCTP_BASE_SYSCTL(sctp_cmt_on_off)) {
struct sctp_assoc_value *av;
SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, optsize);
if (av->assoc_value > SCTP_CMT_MAX) {
SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
error = EINVAL;
break;
}
SCTP_FIND_STCB(inp, stcb, av->assoc_id);
if (stcb) {
stcb->asoc.sctp_cmt_on_off = av->assoc_value;
SCTP_TCB_UNLOCK(stcb);
} else {
if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
(inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
((av->assoc_id == SCTP_FUTURE_ASSOC) ||
(av->assoc_id == SCTP_ALL_ASSOC)))) {
SCTP_INP_WLOCK(inp);
inp->sctp_cmt_on_off = av->assoc_value;
SCTP_INP_WUNLOCK(inp);
}
if ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
((av->assoc_id == SCTP_CURRENT_ASSOC) ||
(av->assoc_id == SCTP_ALL_ASSOC))) {
SCTP_INP_RLOCK(inp);
LIST_FOREACH(stcb, &inp->sctp_asoc_list, sctp_tcblist) {
SCTP_TCB_LOCK(stcb);
stcb->asoc.sctp_cmt_on_off = av->assoc_value;
SCTP_TCB_UNLOCK(stcb);
}
SCTP_INP_RUNLOCK(inp);
}
}
} else {
SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOPROTOOPT);
error = ENOPROTOOPT;
}
break;
case SCTP_PLUGGABLE_CC:
{
struct sctp_assoc_value *av;
struct sctp_nets *net;
SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, optsize);
if ((av->assoc_value != SCTP_CC_RFC2581) &&
(av->assoc_value != SCTP_CC_HSTCP) &&
(av->assoc_value != SCTP_CC_HTCP) &&
(av->assoc_value != SCTP_CC_RTCC)) {
SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
error = EINVAL;
break;
}
SCTP_FIND_STCB(inp, stcb, av->assoc_id);
if (stcb) {
stcb->asoc.cc_functions = sctp_cc_functions[av->assoc_value];
stcb->asoc.congestion_control_module = av->assoc_value;
if (stcb->asoc.cc_functions.sctp_set_initial_cc_param != NULL) {
TAILQ_FOREACH(net, &stcb->asoc.nets, sctp_next) {
stcb->asoc.cc_functions.sctp_set_initial_cc_param(stcb, net);
}
}
SCTP_TCB_UNLOCK(stcb);
} else {
if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
(inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
((av->assoc_id == SCTP_FUTURE_ASSOC) ||
(av->assoc_id == SCTP_ALL_ASSOC)))) {
SCTP_INP_WLOCK(inp);
inp->sctp_ep.sctp_default_cc_module = av->assoc_value;
SCTP_INP_WUNLOCK(inp);
}
if ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
((av->assoc_id == SCTP_CURRENT_ASSOC) ||
(av->assoc_id == SCTP_ALL_ASSOC))) {
SCTP_INP_RLOCK(inp);
LIST_FOREACH(stcb, &inp->sctp_asoc_list, sctp_tcblist) {
SCTP_TCB_LOCK(stcb);
stcb->asoc.cc_functions = sctp_cc_functions[av->assoc_value];
stcb->asoc.congestion_control_module = av->assoc_value;
if (stcb->asoc.cc_functions.sctp_set_initial_cc_param != NULL) {
TAILQ_FOREACH(net, &stcb->asoc.nets, sctp_next) {
stcb->asoc.cc_functions.sctp_set_initial_cc_param(stcb, net);
}
}
SCTP_TCB_UNLOCK(stcb);
}
SCTP_INP_RUNLOCK(inp);
}
}
break;
}
case SCTP_CC_OPTION:
{
struct sctp_cc_option *cc_opt;
SCTP_CHECK_AND_CAST(cc_opt, optval, struct sctp_cc_option, optsize);
SCTP_FIND_STCB(inp, stcb, cc_opt->aid_value.assoc_id);
if (stcb == NULL) {
if ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
(cc_opt->aid_value.assoc_id == SCTP_CURRENT_ASSOC)) {
SCTP_INP_RLOCK(inp);
LIST_FOREACH(stcb, &inp->sctp_asoc_list, sctp_tcblist) {
SCTP_TCB_LOCK(stcb);
if (stcb->asoc.cc_functions.sctp_cwnd_socket_option) {
(*stcb->asoc.cc_functions.sctp_cwnd_socket_option)(stcb, 1, cc_opt);
}
SCTP_TCB_UNLOCK(stcb);
}
SCTP_INP_RUNLOCK(inp);
} else {
error = EINVAL;
}
} else {
if (stcb->asoc.cc_functions.sctp_cwnd_socket_option == NULL) {
error = ENOTSUP;
} else {
error = (*stcb->asoc.cc_functions.sctp_cwnd_socket_option)(stcb, 1,
cc_opt);
}
SCTP_TCB_UNLOCK(stcb);
}
break;
}
case SCTP_PLUGGABLE_SS:
{
struct sctp_assoc_value *av;
SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, optsize);
if ((av->assoc_value != SCTP_SS_DEFAULT) &&
(av->assoc_value != SCTP_SS_ROUND_ROBIN) &&
(av->assoc_value != SCTP_SS_ROUND_ROBIN_PACKET) &&
(av->assoc_value != SCTP_SS_PRIORITY) &&
(av->assoc_value != SCTP_SS_FAIR_BANDWITH) &&
(av->assoc_value != SCTP_SS_FIRST_COME)) {
SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
error = EINVAL;
break;
}
SCTP_FIND_STCB(inp, stcb, av->assoc_id);
if (stcb) {
SCTP_TCB_SEND_LOCK(stcb);
stcb->asoc.ss_functions.sctp_ss_clear(stcb, &stcb->asoc, 1, 1);
stcb->asoc.ss_functions = sctp_ss_functions[av->assoc_value];
stcb->asoc.stream_scheduling_module = av->assoc_value;
stcb->asoc.ss_functions.sctp_ss_init(stcb, &stcb->asoc, 1);
SCTP_TCB_SEND_UNLOCK(stcb);
SCTP_TCB_UNLOCK(stcb);
} else {
if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
(inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
((av->assoc_id == SCTP_FUTURE_ASSOC) ||
(av->assoc_id == SCTP_ALL_ASSOC)))) {
SCTP_INP_WLOCK(inp);
inp->sctp_ep.sctp_default_ss_module = av->assoc_value;
SCTP_INP_WUNLOCK(inp);
}
if ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
((av->assoc_id == SCTP_CURRENT_ASSOC) ||
(av->assoc_id == SCTP_ALL_ASSOC))) {
SCTP_INP_RLOCK(inp);
LIST_FOREACH(stcb, &inp->sctp_asoc_list, sctp_tcblist) {
SCTP_TCB_LOCK(stcb);
SCTP_TCB_SEND_LOCK(stcb);
stcb->asoc.ss_functions.sctp_ss_clear(stcb, &stcb->asoc, 1, 1);
stcb->asoc.ss_functions = sctp_ss_functions[av->assoc_value];
stcb->asoc.stream_scheduling_module = av->assoc_value;
stcb->asoc.ss_functions.sctp_ss_init(stcb, &stcb->asoc, 1);
SCTP_TCB_SEND_UNLOCK(stcb);
SCTP_TCB_UNLOCK(stcb);
}
SCTP_INP_RUNLOCK(inp);
}
}
break;
}
case SCTP_SS_VALUE:
{
struct sctp_stream_value *av;
SCTP_CHECK_AND_CAST(av, optval, struct sctp_stream_value, optsize);
SCTP_FIND_STCB(inp, stcb, av->assoc_id);
if (stcb) {
if ((av->stream_id >= stcb->asoc.streamoutcnt) ||
(stcb->asoc.ss_functions.sctp_ss_set_value(stcb, &stcb->asoc, &stcb->asoc.strmout[av->stream_id],
av->stream_value) < 0)) {
SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
error = EINVAL;
}
SCTP_TCB_UNLOCK(stcb);
} else {
if ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
(av->assoc_id == SCTP_CURRENT_ASSOC)) {
SCTP_INP_RLOCK(inp);
LIST_FOREACH(stcb, &inp->sctp_asoc_list, sctp_tcblist) {
SCTP_TCB_LOCK(stcb);
if (av->stream_id < stcb->asoc.streamoutcnt) {
stcb->asoc.ss_functions.sctp_ss_set_value(stcb,
&stcb->asoc,
&stcb->asoc.strmout[av->stream_id],
av->stream_value);
}
SCTP_TCB_UNLOCK(stcb);
}
SCTP_INP_RUNLOCK(inp);
} else {
/* Can't set stream value without association */
SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
error = EINVAL;
}
}
break;
}
case SCTP_CLR_STAT_LOG:
SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EOPNOTSUPP);
error = EOPNOTSUPP;
break;
case SCTP_CONTEXT:
{
struct sctp_assoc_value *av;
SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, optsize);
SCTP_FIND_STCB(inp, stcb, av->assoc_id);
if (stcb) {
stcb->asoc.context = av->assoc_value;
SCTP_TCB_UNLOCK(stcb);
} else {
if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
(inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
((av->assoc_id == SCTP_FUTURE_ASSOC) ||
(av->assoc_id == SCTP_ALL_ASSOC)))) {
SCTP_INP_WLOCK(inp);
inp->sctp_context = av->assoc_value;
SCTP_INP_WUNLOCK(inp);
}
if ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
((av->assoc_id == SCTP_CURRENT_ASSOC) ||
(av->assoc_id == SCTP_ALL_ASSOC))) {
SCTP_INP_RLOCK(inp);
LIST_FOREACH(stcb, &inp->sctp_asoc_list, sctp_tcblist) {
SCTP_TCB_LOCK(stcb);
stcb->asoc.context = av->assoc_value;
SCTP_TCB_UNLOCK(stcb);
}
SCTP_INP_RUNLOCK(inp);
}
}
break;
}
case SCTP_VRF_ID:
{
uint32_t *default_vrfid;
#ifdef SCTP_MVRF
int i;
#endif
SCTP_CHECK_AND_CAST(default_vrfid, optval, uint32_t, optsize);
if (*default_vrfid > SCTP_MAX_VRF_ID) {
SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
error = EINVAL;
break;
}
#ifdef SCTP_MVRF
for (i = 0; i < inp->num_vrfs; i++) {
/* The VRF must be in the VRF list */
if (*default_vrfid == inp->m_vrf_ids[i]) {
SCTP_INP_WLOCK(inp);
inp->def_vrf_id = *default_vrfid;
SCTP_INP_WUNLOCK(inp);
goto sctp_done;
}
}
SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
error = EINVAL;
#else
inp->def_vrf_id = *default_vrfid;
#endif
#ifdef SCTP_MVRF
sctp_done:
#endif
break;
}
case SCTP_DEL_VRF_ID:
{
#ifdef SCTP_MVRF
uint32_t *del_vrfid;
int i, fnd = 0;
SCTP_CHECK_AND_CAST(del_vrfid, optval, uint32_t, optsize);
if (*del_vrfid > SCTP_MAX_VRF_ID) {
SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
error = EINVAL;
break;
}
if (inp->num_vrfs == 1) {
/* Can't delete last one */
SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
error = EINVAL;
break;
}
if ((inp->sctp_flags & SCTP_PCB_FLAGS_UNBOUND) == 0) {
/* Can't add more once you are bound */
SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
error = EINVAL;
break;
}
SCTP_INP_WLOCK(inp);
for (i = 0; i < inp->num_vrfs; i++) {
if (*del_vrfid == inp->m_vrf_ids[i]) {
fnd = 1;
break;
}
}
if (!fnd) {
SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
error = EINVAL;
break;
}
if (i != (inp->num_vrfs - 1)) {
/* Take bottom one and move to this slot */
inp->m_vrf_ids[i] = inp->m_vrf_ids[(inp->num_vrfs-1)];
}
if (*del_vrfid == inp->def_vrf_id) {
/* Take the first one as the new default */
inp->def_vrf_id = inp->m_vrf_ids[0];
}
/* Drop the number by one killing last one */
inp->num_vrfs--;
#else
SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EOPNOTSUPP);
error = EOPNOTSUPP;
#endif
break;
}
case SCTP_ADD_VRF_ID:
{
#ifdef SCTP_MVRF
uint32_t *add_vrfid;
int i;
SCTP_CHECK_AND_CAST(add_vrfid, optval, uint32_t, optsize);
if (*add_vrfid > SCTP_MAX_VRF_ID) {
SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
error = EINVAL;
break;
}
if ((inp->sctp_flags & SCTP_PCB_FLAGS_UNBOUND) == 0) {
/* Can't add more once you are bound */
SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
error = EINVAL;
break;
}
SCTP_INP_WLOCK(inp);
/* Verify its not already here */
for (i = 0; i < inp->num_vrfs; i++) {
if (*add_vrfid == inp->m_vrf_ids[i]) {
SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EALREADY);
error = EALREADY;
SCTP_INP_WUNLOCK(inp);
break;
}
}
if ((inp->num_vrfs + 1) > inp->vrf_size) {
/* need to grow array */
uint32_t *tarray;
SCTP_MALLOC(tarray, uint32_t *,
(sizeof(uint32_t) * (inp->vrf_size + SCTP_DEFAULT_VRF_SIZE)),
SCTP_M_MVRF);
if (tarray == NULL) {
SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOMEM);
error = ENOMEM;
SCTP_INP_WUNLOCK(inp);
break;
}
memcpy(tarray, inp->m_vrf_ids, (sizeof(uint32_t) * inp->vrf_size));
SCTP_FREE(inp->m_vrf_ids, SCTP_M_MVRF);
inp->m_vrf_ids = tarray;
inp->vrf_size += SCTP_DEFAULT_VRF_SIZE;
}
inp->m_vrf_ids[inp->num_vrfs] = *add_vrfid;
inp->num_vrfs++;
SCTP_INP_WUNLOCK(inp);
#else
SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EOPNOTSUPP);
error = EOPNOTSUPP;
#endif
break;
}
case SCTP_DELAYED_SACK:
{
struct sctp_sack_info *sack;
SCTP_CHECK_AND_CAST(sack, optval, struct sctp_sack_info, optsize);
SCTP_FIND_STCB(inp, stcb, sack->sack_assoc_id);
if (sack->sack_delay) {
if (sack->sack_delay > SCTP_MAX_SACK_DELAY) {
error = EINVAL;
if (stcb != NULL) {
SCTP_TCB_UNLOCK(stcb);
}
break;
}
}
if (stcb) {
if (sack->sack_delay) {
stcb->asoc.delayed_ack = sack->sack_delay;
}
if (sack->sack_freq) {
stcb->asoc.sack_freq = sack->sack_freq;
}
SCTP_TCB_UNLOCK(stcb);
} else {
if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
(inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
((sack->sack_assoc_id == SCTP_FUTURE_ASSOC) ||
(sack->sack_assoc_id == SCTP_ALL_ASSOC)))) {
SCTP_INP_WLOCK(inp);
if (sack->sack_delay) {
inp->sctp_ep.sctp_timeoutticks[SCTP_TIMER_RECV] = sctp_msecs_to_ticks(sack->sack_delay);
}
if (sack->sack_freq) {
inp->sctp_ep.sctp_sack_freq = sack->sack_freq;
}
SCTP_INP_WUNLOCK(inp);
}
if ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
((sack->sack_assoc_id == SCTP_CURRENT_ASSOC) ||
(sack->sack_assoc_id == SCTP_ALL_ASSOC))) {
SCTP_INP_RLOCK(inp);
LIST_FOREACH(stcb, &inp->sctp_asoc_list, sctp_tcblist) {
SCTP_TCB_LOCK(stcb);
if (sack->sack_delay) {
stcb->asoc.delayed_ack = sack->sack_delay;
}
if (sack->sack_freq) {
stcb->asoc.sack_freq = sack->sack_freq;
}
SCTP_TCB_UNLOCK(stcb);
}
SCTP_INP_RUNLOCK(inp);
}
}
break;
}
case SCTP_AUTH_CHUNK:
{
struct sctp_authchunk *sauth;
SCTP_CHECK_AND_CAST(sauth, optval, struct sctp_authchunk, optsize);
SCTP_INP_WLOCK(inp);
if (sctp_auth_add_chunk(sauth->sauth_chunk, inp->sctp_ep.local_auth_chunks)) {
SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
error = EINVAL;
} else {
inp->auth_supported = 1;
}
SCTP_INP_WUNLOCK(inp);
break;
}
case SCTP_AUTH_KEY:
{
struct sctp_authkey *sca;
struct sctp_keyhead *shared_keys;
sctp_sharedkey_t *shared_key;
sctp_key_t *key = NULL;
size_t size;
SCTP_CHECK_AND_CAST(sca, optval, struct sctp_authkey, optsize);
if (sca->sca_keylength == 0) {
size = optsize - sizeof(struct sctp_authkey);
} else {
if (sca->sca_keylength + sizeof(struct sctp_authkey) <= optsize) {
size = sca->sca_keylength;
} else {
SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
error = EINVAL;
break;
}
}
SCTP_FIND_STCB(inp, stcb, sca->sca_assoc_id);
if (stcb) {
shared_keys = &stcb->asoc.shared_keys;
/* clear the cached keys for this key id */
sctp_clear_cachedkeys(stcb, sca->sca_keynumber);
/*
* create the new shared key and
* insert/replace it
*/
if (size > 0) {
key = sctp_set_key(sca->sca_key, (uint32_t) size);
if (key == NULL) {
SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOMEM);
error = ENOMEM;
SCTP_TCB_UNLOCK(stcb);
break;
}
}
shared_key = sctp_alloc_sharedkey();
if (shared_key == NULL) {
sctp_free_key(key);
SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOMEM);
error = ENOMEM;
SCTP_TCB_UNLOCK(stcb);
break;
}
shared_key->key = key;
shared_key->keyid = sca->sca_keynumber;
error = sctp_insert_sharedkey(shared_keys, shared_key);
SCTP_TCB_UNLOCK(stcb);
} else {
if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
(inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
((sca->sca_assoc_id == SCTP_FUTURE_ASSOC) ||
(sca->sca_assoc_id == SCTP_ALL_ASSOC)))) {
SCTP_INP_WLOCK(inp);
shared_keys = &inp->sctp_ep.shared_keys;
/*
* clear the cached keys on all assocs for
* this key id
*/
sctp_clear_cachedkeys_ep(inp, sca->sca_keynumber);
/*
* create the new shared key and
* insert/replace it
*/
if (size > 0) {
key = sctp_set_key(sca->sca_key, (uint32_t) size);
if (key == NULL) {
SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOMEM);
error = ENOMEM;
SCTP_INP_WUNLOCK(inp);
break;
}
}
shared_key = sctp_alloc_sharedkey();
if (shared_key == NULL) {
sctp_free_key(key);
SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOMEM);
error = ENOMEM;
SCTP_INP_WUNLOCK(inp);
break;
}
shared_key->key = key;
shared_key->keyid = sca->sca_keynumber;
error = sctp_insert_sharedkey(shared_keys, shared_key);
SCTP_INP_WUNLOCK(inp);
}
if ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
((sca->sca_assoc_id == SCTP_CURRENT_ASSOC) ||
(sca->sca_assoc_id == SCTP_ALL_ASSOC))) {
SCTP_INP_RLOCK(inp);
LIST_FOREACH(stcb, &inp->sctp_asoc_list, sctp_tcblist) {
SCTP_TCB_LOCK(stcb);
shared_keys = &stcb->asoc.shared_keys;
/* clear the cached keys for this key id */
sctp_clear_cachedkeys(stcb, sca->sca_keynumber);
/*
* create the new shared key and
* insert/replace it
*/
if (size > 0) {
key = sctp_set_key(sca->sca_key, (uint32_t) size);
if (key == NULL) {
SCTP_TCB_UNLOCK(stcb);
continue;
}
}
shared_key = sctp_alloc_sharedkey();
if (shared_key == NULL) {
sctp_free_key(key);
SCTP_TCB_UNLOCK(stcb);
continue;
}
shared_key->key = key;
shared_key->keyid = sca->sca_keynumber;
error = sctp_insert_sharedkey(shared_keys, shared_key);
SCTP_TCB_UNLOCK(stcb);
}
SCTP_INP_RUNLOCK(inp);
}
}
break;
}
case SCTP_HMAC_IDENT:
{
struct sctp_hmacalgo *shmac;
sctp_hmaclist_t *hmaclist;
uint16_t hmacid;
uint32_t i;
SCTP_CHECK_AND_CAST(shmac, optval, struct sctp_hmacalgo, optsize);
if ((optsize < sizeof(struct sctp_hmacalgo) + shmac->shmac_number_of_idents * sizeof(uint16_t)) ||
(shmac->shmac_number_of_idents > 0xffff)) {
SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
error = EINVAL;
break;
}
hmaclist = sctp_alloc_hmaclist((uint16_t)shmac->shmac_number_of_idents);
if (hmaclist == NULL) {
SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOMEM);
error = ENOMEM;
break;
}
for (i = 0; i < shmac->shmac_number_of_idents; i++) {
hmacid = shmac->shmac_idents[i];
if (sctp_auth_add_hmacid(hmaclist, hmacid)) {
/* invalid HMACs were found */;
SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
error = EINVAL;
sctp_free_hmaclist(hmaclist);
goto sctp_set_hmac_done;
}
}
for (i = 0; i < hmaclist->num_algo; i++) {
if (hmaclist->hmac[i] == SCTP_AUTH_HMAC_ID_SHA1) {
/* already in list */
break;
}
}
if (i == hmaclist->num_algo) {
/* not found in list */
sctp_free_hmaclist(hmaclist);
SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
error = EINVAL;
break;
}
/* set it on the endpoint */
SCTP_INP_WLOCK(inp);
if (inp->sctp_ep.local_hmacs)
sctp_free_hmaclist(inp->sctp_ep.local_hmacs);
inp->sctp_ep.local_hmacs = hmaclist;
SCTP_INP_WUNLOCK(inp);
sctp_set_hmac_done:
break;
}
case SCTP_AUTH_ACTIVE_KEY:
{
struct sctp_authkeyid *scact;
SCTP_CHECK_AND_CAST(scact, optval, struct sctp_authkeyid, optsize);
SCTP_FIND_STCB(inp, stcb, scact->scact_assoc_id);
/* set the active key on the right place */
if (stcb) {
/* set the active key on the assoc */
if (sctp_auth_setactivekey(stcb,
scact->scact_keynumber)) {
SCTP_LTRACE_ERR_RET(inp, NULL, NULL,
SCTP_FROM_SCTP_USRREQ,
EINVAL);
error = EINVAL;
}
SCTP_TCB_UNLOCK(stcb);
} else {
if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
(inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
((scact->scact_assoc_id == SCTP_FUTURE_ASSOC) ||
(scact->scact_assoc_id == SCTP_ALL_ASSOC)))) {
SCTP_INP_WLOCK(inp);
if (sctp_auth_setactivekey_ep(inp, scact->scact_keynumber)) {
SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
error = EINVAL;
}
SCTP_INP_WUNLOCK(inp);
}
if ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
((scact->scact_assoc_id == SCTP_CURRENT_ASSOC) ||
(scact->scact_assoc_id == SCTP_ALL_ASSOC))) {
SCTP_INP_RLOCK(inp);
LIST_FOREACH(stcb, &inp->sctp_asoc_list, sctp_tcblist) {
SCTP_TCB_LOCK(stcb);
sctp_auth_setactivekey(stcb, scact->scact_keynumber);
SCTP_TCB_UNLOCK(stcb);
}
SCTP_INP_RUNLOCK(inp);
}
}
break;
}
case SCTP_AUTH_DELETE_KEY:
{
struct sctp_authkeyid *scdel;
SCTP_CHECK_AND_CAST(scdel, optval, struct sctp_authkeyid, optsize);
SCTP_FIND_STCB(inp, stcb, scdel->scact_assoc_id);
/* delete the key from the right place */
if (stcb) {
if (sctp_delete_sharedkey(stcb, scdel->scact_keynumber)) {
SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
error = EINVAL;
}
SCTP_TCB_UNLOCK(stcb);
} else {
if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
(inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
((scdel->scact_assoc_id == SCTP_FUTURE_ASSOC) ||
(scdel->scact_assoc_id == SCTP_ALL_ASSOC)))) {
SCTP_INP_WLOCK(inp);
if (sctp_delete_sharedkey_ep(inp, scdel->scact_keynumber)) {
SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
error = EINVAL;
}
SCTP_INP_WUNLOCK(inp);
}
if ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
((scdel->scact_assoc_id == SCTP_CURRENT_ASSOC) ||
(scdel->scact_assoc_id == SCTP_ALL_ASSOC))) {
SCTP_INP_RLOCK(inp);
LIST_FOREACH(stcb, &inp->sctp_asoc_list, sctp_tcblist) {
SCTP_TCB_LOCK(stcb);
sctp_delete_sharedkey(stcb, scdel->scact_keynumber);
SCTP_TCB_UNLOCK(stcb);
}
SCTP_INP_RUNLOCK(inp);
}
}
break;
}
case SCTP_AUTH_DEACTIVATE_KEY:
{
struct sctp_authkeyid *keyid;
SCTP_CHECK_AND_CAST(keyid, optval, struct sctp_authkeyid, optsize);
SCTP_FIND_STCB(inp, stcb, keyid->scact_assoc_id);
/* deactivate the key from the right place */
if (stcb) {
if (sctp_deact_sharedkey(stcb, keyid->scact_keynumber)) {
SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
error = EINVAL;
}
SCTP_TCB_UNLOCK(stcb);
} else {
if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
(inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
((keyid->scact_assoc_id == SCTP_FUTURE_ASSOC) ||
(keyid->scact_assoc_id == SCTP_ALL_ASSOC)))) {
SCTP_INP_WLOCK(inp);
if (sctp_deact_sharedkey_ep(inp, keyid->scact_keynumber)) {
SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
error = EINVAL;
}
SCTP_INP_WUNLOCK(inp);
}
if ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
((keyid->scact_assoc_id == SCTP_CURRENT_ASSOC) ||
(keyid->scact_assoc_id == SCTP_ALL_ASSOC))) {
SCTP_INP_RLOCK(inp);
LIST_FOREACH(stcb, &inp->sctp_asoc_list, sctp_tcblist) {
SCTP_TCB_LOCK(stcb);
sctp_deact_sharedkey(stcb, keyid->scact_keynumber);
SCTP_TCB_UNLOCK(stcb);
}
SCTP_INP_RUNLOCK(inp);
}
}
break;
}
case SCTP_ENABLE_STREAM_RESET:
{
struct sctp_assoc_value *av;
SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, optsize);
if (av->assoc_value & (~SCTP_ENABLE_VALUE_MASK)) {
SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
error = EINVAL;
break;
}
SCTP_FIND_STCB(inp, stcb, av->assoc_id);
if (stcb) {
stcb->asoc.local_strreset_support = (uint8_t)av->assoc_value;
SCTP_TCB_UNLOCK(stcb);
} else {
if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
(inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
((av->assoc_id == SCTP_FUTURE_ASSOC) ||
(av->assoc_id == SCTP_ALL_ASSOC)))) {
SCTP_INP_WLOCK(inp);
inp->local_strreset_support = (uint8_t)av->assoc_value;
SCTP_INP_WUNLOCK(inp);
}
if ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
((av->assoc_id == SCTP_CURRENT_ASSOC) ||
(av->assoc_id == SCTP_ALL_ASSOC))) {
SCTP_INP_RLOCK(inp);
LIST_FOREACH(stcb, &inp->sctp_asoc_list, sctp_tcblist) {
SCTP_TCB_LOCK(stcb);
stcb->asoc.local_strreset_support = (uint8_t)av->assoc_value;
SCTP_TCB_UNLOCK(stcb);
}
SCTP_INP_RUNLOCK(inp);
}
}
break;
}
case SCTP_RESET_STREAMS:
{
struct sctp_reset_streams *strrst;
int i, send_out = 0;
int send_in = 0;
SCTP_CHECK_AND_CAST(strrst, optval, struct sctp_reset_streams, optsize);
SCTP_FIND_STCB(inp, stcb, strrst->srs_assoc_id);
if (stcb == NULL) {
SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOENT);
error = ENOENT;
break;
}
if (stcb->asoc.reconfig_supported == 0) {
/*
* Peer does not support the chunk type.
*/
SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EOPNOTSUPP);
error = EOPNOTSUPP;
SCTP_TCB_UNLOCK(stcb);
break;
}
if (SCTP_GET_STATE(stcb) != SCTP_STATE_OPEN) {
SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
error = EINVAL;
SCTP_TCB_UNLOCK(stcb);
break;
}
if (sizeof(struct sctp_reset_streams) +
strrst->srs_number_streams * sizeof(uint16_t) > optsize) {
error = EINVAL;
SCTP_TCB_UNLOCK(stcb);
break;
}
if (strrst->srs_flags & SCTP_STREAM_RESET_INCOMING) {
send_in = 1;
if (stcb->asoc.stream_reset_outstanding) {
SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EALREADY);
error = EALREADY;
SCTP_TCB_UNLOCK(stcb);
break;
}
}
if (strrst->srs_flags & SCTP_STREAM_RESET_OUTGOING) {
send_out = 1;
}
if ((strrst->srs_number_streams > SCTP_MAX_STREAMS_AT_ONCE_RESET) && send_in) {
SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOMEM);
error = ENOMEM;
SCTP_TCB_UNLOCK(stcb);
break;
}
if ((send_in == 0) && (send_out == 0)) {
SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
error = EINVAL;
SCTP_TCB_UNLOCK(stcb);
break;
}
for (i = 0; i < strrst->srs_number_streams; i++) {
if ((send_in) &&
(strrst->srs_stream_list[i] >= stcb->asoc.streamincnt)) {
SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
error = EINVAL;
break;
}
if ((send_out) &&
(strrst->srs_stream_list[i] >= stcb->asoc.streamoutcnt)) {
SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
error = EINVAL;
break;
}
}
if (error) {
SCTP_TCB_UNLOCK(stcb);
break;
}
if (send_out) {
int cnt;
uint16_t strm;
if (strrst->srs_number_streams) {
for (i = 0, cnt = 0; i < strrst->srs_number_streams; i++) {
strm = strrst->srs_stream_list[i];
if (stcb->asoc.strmout[strm].state == SCTP_STREAM_OPEN) {
stcb->asoc.strmout[strm].state = SCTP_STREAM_RESET_PENDING;
cnt++;
}
}
} else {
/* Its all */
for (i = 0, cnt = 0; i < stcb->asoc.streamoutcnt; i++) {
if (stcb->asoc.strmout[i].state == SCTP_STREAM_OPEN) {
stcb->asoc.strmout[i].state = SCTP_STREAM_RESET_PENDING;
cnt++;
}
}
}
}
if (send_in) {
error = sctp_send_str_reset_req(stcb, strrst->srs_number_streams,
strrst->srs_stream_list,
send_in, 0, 0, 0, 0, 0);
} else {
error = sctp_send_stream_reset_out_if_possible(stcb, SCTP_SO_LOCKED);
}
if (error == 0) {
sctp_chunk_output(inp, stcb, SCTP_OUTPUT_FROM_STRRST_REQ, SCTP_SO_LOCKED);
} else {
/*
* For outgoing streams don't report any problems in
* sending the request to the application.
* XXX: Double check resetting incoming streams.
*/
error = 0;
}
SCTP_TCB_UNLOCK(stcb);
break;
}
case SCTP_ADD_STREAMS:
{
struct sctp_add_streams *stradd;
uint8_t addstream = 0;
uint16_t add_o_strmcnt = 0;
uint16_t add_i_strmcnt = 0;
SCTP_CHECK_AND_CAST(stradd, optval, struct sctp_add_streams, optsize);
SCTP_FIND_STCB(inp, stcb, stradd->sas_assoc_id);
if (stcb == NULL) {
SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOENT);
error = ENOENT;
break;
}
if (stcb->asoc.reconfig_supported == 0) {
/*
* Peer does not support the chunk type.
*/
SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EOPNOTSUPP);
error = EOPNOTSUPP;
SCTP_TCB_UNLOCK(stcb);
break;
}
if (SCTP_GET_STATE(stcb) != SCTP_STATE_OPEN) {
SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
error = EINVAL;
SCTP_TCB_UNLOCK(stcb);
break;
}
if (stcb->asoc.stream_reset_outstanding) {
SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EALREADY);
error = EALREADY;
SCTP_TCB_UNLOCK(stcb);
break;
}
if ((stradd->sas_outstrms == 0) &&
(stradd->sas_instrms == 0)) {
error = EINVAL;
goto skip_stuff;
}
if (stradd->sas_outstrms) {
addstream = 1;
/* We allocate here */
add_o_strmcnt = stradd->sas_outstrms;
if ((((int)add_o_strmcnt) + ((int)stcb->asoc.streamoutcnt)) > 0x0000ffff) {
/* You can't have more than 64k */
error = EINVAL;
goto skip_stuff;
}
}
if (stradd->sas_instrms) {
int cnt;
addstream |= 2;
/* We allocate inside sctp_send_str_reset_req() */
add_i_strmcnt = stradd->sas_instrms;
cnt = add_i_strmcnt;
cnt += stcb->asoc.streamincnt;
if (cnt > 0x0000ffff) {
/* You can't have more than 64k */
error = EINVAL;
goto skip_stuff;
}
if (cnt > (int)stcb->asoc.max_inbound_streams) {
/* More than you are allowed */
error = EINVAL;
goto skip_stuff;
}
}
error = sctp_send_str_reset_req(stcb, 0, NULL, 0, 0, addstream, add_o_strmcnt, add_i_strmcnt, 0);
sctp_chunk_output(inp, stcb, SCTP_OUTPUT_FROM_STRRST_REQ, SCTP_SO_LOCKED);
skip_stuff:
SCTP_TCB_UNLOCK(stcb);
break;
}
case SCTP_RESET_ASSOC:
{
int i;
uint32_t *value;
SCTP_CHECK_AND_CAST(value, optval, uint32_t, optsize);
SCTP_FIND_STCB(inp, stcb, (sctp_assoc_t) *value);
if (stcb == NULL) {
SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOENT);
error = ENOENT;
break;
}
if (stcb->asoc.reconfig_supported == 0) {
/*
* Peer does not support the chunk type.
*/
SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EOPNOTSUPP);
error = EOPNOTSUPP;
SCTP_TCB_UNLOCK(stcb);
break;
}
if (SCTP_GET_STATE(stcb) != SCTP_STATE_OPEN) {
SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
error = EINVAL;
SCTP_TCB_UNLOCK(stcb);
break;
}
if (stcb->asoc.stream_reset_outstanding) {
SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EALREADY);
error = EALREADY;
SCTP_TCB_UNLOCK(stcb);
break;
}
/* Is there any data pending in the send or sent queues? */
if (!TAILQ_EMPTY(&stcb->asoc.send_queue) ||
!TAILQ_EMPTY(&stcb->asoc.sent_queue)) {
busy_out:
error = EBUSY;
SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
SCTP_TCB_UNLOCK(stcb);
break;
}
/* Do any streams have data queued? */
for (i = 0; i < stcb->asoc.streamoutcnt; i++) {
if (!TAILQ_EMPTY(&stcb->asoc.strmout[i].outqueue)) {
goto busy_out;
}
}
error = sctp_send_str_reset_req(stcb, 0, NULL, 0, 1, 0, 0, 0, 0);
sctp_chunk_output(inp, stcb, SCTP_OUTPUT_FROM_STRRST_REQ, SCTP_SO_LOCKED);
SCTP_TCB_UNLOCK(stcb);
break;
}
case SCTP_CONNECT_X:
if (optsize < (sizeof(int) + sizeof(struct sockaddr_in))) {
SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
error = EINVAL;
break;
}
error = sctp_do_connect_x(so, inp, optval, optsize, p, 0);
break;
case SCTP_CONNECT_X_DELAYED:
if (optsize < (sizeof(int) + sizeof(struct sockaddr_in))) {
SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
error = EINVAL;
break;
}
error = sctp_do_connect_x(so, inp, optval, optsize, p, 1);
break;
case SCTP_CONNECT_X_COMPLETE:
{
struct sockaddr *sa;
/* FIXME MT: check correct? */
SCTP_CHECK_AND_CAST(sa, optval, struct sockaddr, optsize);
/* find tcb */
if (inp->sctp_flags & SCTP_PCB_FLAGS_CONNECTED) {
SCTP_INP_RLOCK(inp);
stcb = LIST_FIRST(&inp->sctp_asoc_list);
if (stcb) {
SCTP_TCB_LOCK(stcb);
}
SCTP_INP_RUNLOCK(inp);
} else {
/* We increment here since sctp_findassociation_ep_addr() wil
* do a decrement if it finds the stcb as long as the locked
* tcb (last argument) is NOT a TCB.. aka NULL.
*/
SCTP_INP_INCR_REF(inp);
stcb = sctp_findassociation_ep_addr(&inp, sa, NULL, NULL, NULL);
if (stcb == NULL) {
SCTP_INP_DECR_REF(inp);
}
}
if (stcb == NULL) {
SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOENT);
error = ENOENT;
break;
}
if (stcb->asoc.delayed_connection == 1) {
stcb->asoc.delayed_connection = 0;
(void)SCTP_GETTIME_TIMEVAL(&stcb->asoc.time_entered);
sctp_timer_stop(SCTP_TIMER_TYPE_INIT, inp, stcb,
stcb->asoc.primary_destination,
SCTP_FROM_SCTP_USRREQ + SCTP_LOC_8);
sctp_send_initiate(inp, stcb, SCTP_SO_LOCKED);
} else {
/*
* already expired or did not use delayed
* connectx
*/
SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EALREADY);
error = EALREADY;
}
SCTP_TCB_UNLOCK(stcb);
break;
}
case SCTP_MAX_BURST:
{
struct sctp_assoc_value *av;
SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, optsize);
SCTP_FIND_STCB(inp, stcb, av->assoc_id);
if (stcb) {
stcb->asoc.max_burst = av->assoc_value;
SCTP_TCB_UNLOCK(stcb);
} else {
if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
(inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
((av->assoc_id == SCTP_FUTURE_ASSOC) ||
(av->assoc_id == SCTP_ALL_ASSOC)))) {
SCTP_INP_WLOCK(inp);
inp->sctp_ep.max_burst = av->assoc_value;
SCTP_INP_WUNLOCK(inp);
}
if ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
((av->assoc_id == SCTP_CURRENT_ASSOC) ||
(av->assoc_id == SCTP_ALL_ASSOC))) {
SCTP_INP_RLOCK(inp);
LIST_FOREACH(stcb, &inp->sctp_asoc_list, sctp_tcblist) {
SCTP_TCB_LOCK(stcb);
stcb->asoc.max_burst = av->assoc_value;
SCTP_TCB_UNLOCK(stcb);
}
SCTP_INP_RUNLOCK(inp);
}
}
break;
}
case SCTP_MAXSEG:
{
struct sctp_assoc_value *av;
int ovh;
SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, optsize);
SCTP_FIND_STCB(inp, stcb, av->assoc_id);
if (inp->sctp_flags & SCTP_PCB_FLAGS_BOUND_V6) {
ovh = SCTP_MED_OVERHEAD;
} else {
ovh = SCTP_MED_V4_OVERHEAD;
}
if (stcb) {
if (av->assoc_value) {
stcb->asoc.sctp_frag_point = (av->assoc_value + ovh);
} else {
stcb->asoc.sctp_frag_point = SCTP_DEFAULT_MAXSEGMENT;
}
SCTP_TCB_UNLOCK(stcb);
} else {
if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
(inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
(av->assoc_id == SCTP_FUTURE_ASSOC))) {
SCTP_INP_WLOCK(inp);
/* FIXME MT: I think this is not in tune with the API ID */
if (av->assoc_value) {
inp->sctp_frag_point = (av->assoc_value + ovh);
} else {
inp->sctp_frag_point = SCTP_DEFAULT_MAXSEGMENT;
}
SCTP_INP_WUNLOCK(inp);
} else {
SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
error = EINVAL;
}
}
break;
}
case SCTP_EVENTS:
{
struct sctp_event_subscribe *events;
SCTP_CHECK_AND_CAST(events, optval, struct sctp_event_subscribe, optsize);
SCTP_INP_WLOCK(inp);
if (events->sctp_data_io_event) {
sctp_feature_on(inp, SCTP_PCB_FLAGS_RECVDATAIOEVNT);
} else {
sctp_feature_off(inp, SCTP_PCB_FLAGS_RECVDATAIOEVNT);
}
if (events->sctp_association_event) {
sctp_feature_on(inp, SCTP_PCB_FLAGS_RECVASSOCEVNT);
} else {
sctp_feature_off(inp, SCTP_PCB_FLAGS_RECVASSOCEVNT);
}
if (events->sctp_address_event) {
sctp_feature_on(inp, SCTP_PCB_FLAGS_RECVPADDREVNT);
} else {
sctp_feature_off(inp, SCTP_PCB_FLAGS_RECVPADDREVNT);
}
if (events->sctp_send_failure_event) {
sctp_feature_on(inp, SCTP_PCB_FLAGS_RECVSENDFAILEVNT);
} else {
sctp_feature_off(inp, SCTP_PCB_FLAGS_RECVSENDFAILEVNT);
}
if (events->sctp_peer_error_event) {
sctp_feature_on(inp, SCTP_PCB_FLAGS_RECVPEERERR);
} else {
sctp_feature_off(inp, SCTP_PCB_FLAGS_RECVPEERERR);
}
if (events->sctp_shutdown_event) {
sctp_feature_on(inp, SCTP_PCB_FLAGS_RECVSHUTDOWNEVNT);
} else {
sctp_feature_off(inp, SCTP_PCB_FLAGS_RECVSHUTDOWNEVNT);
}
if (events->sctp_partial_delivery_event) {
sctp_feature_on(inp, SCTP_PCB_FLAGS_PDAPIEVNT);
} else {
sctp_feature_off(inp, SCTP_PCB_FLAGS_PDAPIEVNT);
}
if (events->sctp_adaptation_layer_event) {
sctp_feature_on(inp, SCTP_PCB_FLAGS_ADAPTATIONEVNT);
} else {
sctp_feature_off(inp, SCTP_PCB_FLAGS_ADAPTATIONEVNT);
}
if (events->sctp_authentication_event) {
sctp_feature_on(inp, SCTP_PCB_FLAGS_AUTHEVNT);
} else {
sctp_feature_off(inp, SCTP_PCB_FLAGS_AUTHEVNT);
}
if (events->sctp_sender_dry_event) {
sctp_feature_on(inp, SCTP_PCB_FLAGS_DRYEVNT);
} else {
sctp_feature_off(inp, SCTP_PCB_FLAGS_DRYEVNT);
}
if (events->sctp_stream_reset_event) {
sctp_feature_on(inp, SCTP_PCB_FLAGS_STREAM_RESETEVNT);
} else {
sctp_feature_off(inp, SCTP_PCB_FLAGS_STREAM_RESETEVNT);
}
SCTP_INP_WUNLOCK(inp);
SCTP_INP_RLOCK(inp);
LIST_FOREACH(stcb, &inp->sctp_asoc_list, sctp_tcblist) {
SCTP_TCB_LOCK(stcb);
if (events->sctp_association_event) {
sctp_stcb_feature_on(inp, stcb, SCTP_PCB_FLAGS_RECVASSOCEVNT);
} else {
sctp_stcb_feature_off(inp, stcb, SCTP_PCB_FLAGS_RECVASSOCEVNT);
}
if (events->sctp_address_event) {
sctp_stcb_feature_on(inp, stcb, SCTP_PCB_FLAGS_RECVPADDREVNT);
} else {
sctp_stcb_feature_off(inp, stcb, SCTP_PCB_FLAGS_RECVPADDREVNT);
}
if (events->sctp_send_failure_event) {
sctp_stcb_feature_on(inp, stcb, SCTP_PCB_FLAGS_RECVSENDFAILEVNT);
} else {
sctp_stcb_feature_off(inp, stcb, SCTP_PCB_FLAGS_RECVSENDFAILEVNT);
}
if (events->sctp_peer_error_event) {
sctp_stcb_feature_on(inp, stcb, SCTP_PCB_FLAGS_RECVPEERERR);
} else {
sctp_stcb_feature_off(inp, stcb, SCTP_PCB_FLAGS_RECVPEERERR);
}
if (events->sctp_shutdown_event) {
sctp_stcb_feature_on(inp, stcb, SCTP_PCB_FLAGS_RECVSHUTDOWNEVNT);
} else {
sctp_stcb_feature_off(inp, stcb, SCTP_PCB_FLAGS_RECVSHUTDOWNEVNT);
}
if (events->sctp_partial_delivery_event) {
sctp_stcb_feature_on(inp, stcb, SCTP_PCB_FLAGS_PDAPIEVNT);
} else {
sctp_stcb_feature_off(inp, stcb, SCTP_PCB_FLAGS_PDAPIEVNT);
}
if (events->sctp_adaptation_layer_event) {
sctp_stcb_feature_on(inp, stcb, SCTP_PCB_FLAGS_ADAPTATIONEVNT);
} else {
sctp_stcb_feature_off(inp, stcb, SCTP_PCB_FLAGS_ADAPTATIONEVNT);
}
if (events->sctp_authentication_event) {
sctp_stcb_feature_on(inp, stcb, SCTP_PCB_FLAGS_AUTHEVNT);
} else {
sctp_stcb_feature_off(inp, stcb, SCTP_PCB_FLAGS_AUTHEVNT);
}
if (events->sctp_sender_dry_event) {
sctp_stcb_feature_on(inp, stcb, SCTP_PCB_FLAGS_DRYEVNT);
} else {
sctp_stcb_feature_off(inp, stcb, SCTP_PCB_FLAGS_DRYEVNT);
}
if (events->sctp_stream_reset_event) {
sctp_stcb_feature_on(inp, stcb, SCTP_PCB_FLAGS_STREAM_RESETEVNT);
} else {
sctp_stcb_feature_off(inp, stcb, SCTP_PCB_FLAGS_STREAM_RESETEVNT);
}
SCTP_TCB_UNLOCK(stcb);
}
/* Send up the sender dry event only for 1-to-1 style sockets. */
if (events->sctp_sender_dry_event) {
if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
(inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL)) {
stcb = LIST_FIRST(&inp->sctp_asoc_list);
if (stcb) {
SCTP_TCB_LOCK(stcb);
if (TAILQ_EMPTY(&stcb->asoc.send_queue) &&
TAILQ_EMPTY(&stcb->asoc.sent_queue) &&
(stcb->asoc.stream_queue_cnt == 0)) {
sctp_ulp_notify(SCTP_NOTIFY_SENDER_DRY, stcb, 0, NULL, SCTP_SO_LOCKED);
}
SCTP_TCB_UNLOCK(stcb);
}
}
}
SCTP_INP_RUNLOCK(inp);
break;
}
case SCTP_ADAPTATION_LAYER:
{
struct sctp_setadaptation *adap_bits;
SCTP_CHECK_AND_CAST(adap_bits, optval, struct sctp_setadaptation, optsize);
SCTP_INP_WLOCK(inp);
inp->sctp_ep.adaptation_layer_indicator = adap_bits->ssb_adaptation_ind;
inp->sctp_ep.adaptation_layer_indicator_provided = 1;
SCTP_INP_WUNLOCK(inp);
break;
}
#ifdef SCTP_DEBUG
case SCTP_SET_INITIAL_DBG_SEQ:
{
uint32_t *vvv;
SCTP_CHECK_AND_CAST(vvv, optval, uint32_t, optsize);
SCTP_INP_WLOCK(inp);
inp->sctp_ep.initial_sequence_debug = *vvv;
SCTP_INP_WUNLOCK(inp);
break;
}
#endif
case SCTP_DEFAULT_SEND_PARAM:
{
struct sctp_sndrcvinfo *s_info;
SCTP_CHECK_AND_CAST(s_info, optval, struct sctp_sndrcvinfo, optsize);
SCTP_FIND_STCB(inp, stcb, s_info->sinfo_assoc_id);
if (stcb) {
if (s_info->sinfo_stream < stcb->asoc.streamoutcnt) {
memcpy(&stcb->asoc.def_send, s_info, min(optsize, sizeof(stcb->asoc.def_send)));
} else {
SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
error = EINVAL;
}
SCTP_TCB_UNLOCK(stcb);
} else {
if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
(inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
((s_info->sinfo_assoc_id == SCTP_FUTURE_ASSOC) ||
(s_info->sinfo_assoc_id == SCTP_ALL_ASSOC)))) {
SCTP_INP_WLOCK(inp);
memcpy(&inp->def_send, s_info, min(optsize, sizeof(inp->def_send)));
SCTP_INP_WUNLOCK(inp);
}
if ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
((s_info->sinfo_assoc_id == SCTP_CURRENT_ASSOC) ||
(s_info->sinfo_assoc_id == SCTP_ALL_ASSOC))) {
SCTP_INP_RLOCK(inp);
LIST_FOREACH(stcb, &inp->sctp_asoc_list, sctp_tcblist) {
SCTP_TCB_LOCK(stcb);
if (s_info->sinfo_stream < stcb->asoc.streamoutcnt) {
memcpy(&stcb->asoc.def_send, s_info, min(optsize, sizeof(stcb->asoc.def_send)));
}
SCTP_TCB_UNLOCK(stcb);
}
SCTP_INP_RUNLOCK(inp);
}
}
break;
}
case SCTP_PEER_ADDR_PARAMS:
{
struct sctp_paddrparams *paddrp;
struct sctp_nets *net;
struct sockaddr *addr;
#if defined(INET) && defined(INET6)
struct sockaddr_in sin_store;
#endif
SCTP_CHECK_AND_CAST(paddrp, optval, struct sctp_paddrparams, optsize);
SCTP_FIND_STCB(inp, stcb, paddrp->spp_assoc_id);
#if defined(INET) && defined(INET6)
if (paddrp->spp_address.ss_family == AF_INET6) {
struct sockaddr_in6 *sin6;
sin6 = (struct sockaddr_in6 *)&paddrp->spp_address;
if (IN6_IS_ADDR_V4MAPPED(&sin6->sin6_addr)) {
in6_sin6_2_sin(&sin_store, sin6);
addr = (struct sockaddr *)&sin_store;
} else {
addr = (struct sockaddr *)&paddrp->spp_address;
}
} else {
addr = (struct sockaddr *)&paddrp->spp_address;
}
#else
addr = (struct sockaddr *)&paddrp->spp_address;
#endif
if (stcb != NULL) {
net = sctp_findnet(stcb, addr);
} else {
/* We increment here since sctp_findassociation_ep_addr() wil
* do a decrement if it finds the stcb as long as the locked
* tcb (last argument) is NOT a TCB.. aka NULL.
*/
net = NULL;
SCTP_INP_INCR_REF(inp);
stcb = sctp_findassociation_ep_addr(&inp, addr,
&net, NULL, NULL);
if (stcb == NULL) {
SCTP_INP_DECR_REF(inp);
}
}
if ((stcb != NULL) && (net == NULL)) {
#ifdef INET
if (addr->sa_family == AF_INET) {
struct sockaddr_in *sin;
sin = (struct sockaddr_in *)addr;
if (sin->sin_addr.s_addr != INADDR_ANY) {
SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
SCTP_TCB_UNLOCK(stcb);
error = EINVAL;
break;
}
} else
#endif
#ifdef INET6
if (addr->sa_family == AF_INET6) {
struct sockaddr_in6 *sin6;
sin6 = (struct sockaddr_in6 *)addr;
if (!IN6_IS_ADDR_UNSPECIFIED(&sin6->sin6_addr)) {
SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
SCTP_TCB_UNLOCK(stcb);
error = EINVAL;
break;
}
} else
#endif
#if defined(__Userspace__)
if (addr->sa_family == AF_CONN) {
struct sockaddr_conn *sconn;
sconn = (struct sockaddr_conn *)addr;
if (sconn->sconn_addr != NULL) {
SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
SCTP_TCB_UNLOCK(stcb);
error = EINVAL;
break;
}
} else
#endif
{
error = EAFNOSUPPORT;
SCTP_TCB_UNLOCK(stcb);
SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
break;
}
}
/* sanity checks */
if ((paddrp->spp_flags & SPP_HB_ENABLE) && (paddrp->spp_flags & SPP_HB_DISABLE)) {
if (stcb)
SCTP_TCB_UNLOCK(stcb);
SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
return (EINVAL);
}
if ((paddrp->spp_flags & SPP_PMTUD_ENABLE) && (paddrp->spp_flags & SPP_PMTUD_DISABLE)) {
if (stcb)
SCTP_TCB_UNLOCK(stcb);
SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
return (EINVAL);
}
if ((paddrp->spp_flags & SPP_PMTUD_DISABLE) &&
((paddrp->spp_pathmtu < SCTP_SMALLEST_PMTU) ||
(paddrp->spp_pathmtu > SCTP_LARGEST_PMTU))) {
if (stcb)
SCTP_TCB_UNLOCK(stcb);
SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
return (EINVAL);
}
if (stcb != NULL) {
/************************TCB SPECIFIC SET ******************/
if (net != NULL) {
/************************NET SPECIFIC SET ******************/
if (paddrp->spp_flags & SPP_HB_DISABLE) {
if (!(net->dest_state & SCTP_ADDR_UNCONFIRMED) &&
!(net->dest_state & SCTP_ADDR_NOHB)) {
sctp_timer_stop(SCTP_TIMER_TYPE_HEARTBEAT, inp, stcb, net,
SCTP_FROM_SCTP_USRREQ + SCTP_LOC_9);
}
net->dest_state |= SCTP_ADDR_NOHB;
}
if (paddrp->spp_flags & SPP_HB_ENABLE) {
if (paddrp->spp_hbinterval) {
net->heart_beat_delay = paddrp->spp_hbinterval;
} else if (paddrp->spp_flags & SPP_HB_TIME_IS_ZERO) {
net->heart_beat_delay = 0;
}
sctp_timer_stop(SCTP_TIMER_TYPE_HEARTBEAT, inp, stcb, net,
SCTP_FROM_SCTP_USRREQ + SCTP_LOC_10);
sctp_timer_start(SCTP_TIMER_TYPE_HEARTBEAT, inp, stcb, net);
net->dest_state &= ~SCTP_ADDR_NOHB;
}
if (paddrp->spp_flags & SPP_HB_DEMAND) {
if (SCTP_GET_STATE(stcb) == SCTP_STATE_OPEN) {
sctp_send_hb(stcb, net, SCTP_SO_LOCKED);
sctp_chunk_output(inp, stcb, SCTP_OUTPUT_FROM_SOCKOPT, SCTP_SO_LOCKED);
sctp_timer_start(SCTP_TIMER_TYPE_HEARTBEAT, inp, stcb, net);
}
}
if (paddrp->spp_flags & SPP_PMTUD_DISABLE) {
if (SCTP_OS_TIMER_PENDING(&net->pmtu_timer.timer)) {
sctp_timer_stop(SCTP_TIMER_TYPE_PATHMTURAISE, inp, stcb, net,
SCTP_FROM_SCTP_USRREQ + SCTP_LOC_11);
}
net->dest_state |= SCTP_ADDR_NO_PMTUD;
net->mtu = paddrp->spp_pathmtu;
switch (net->ro._l_addr.sa.sa_family) {
#ifdef INET
case AF_INET:
net->mtu += SCTP_MIN_V4_OVERHEAD;
break;
#endif
#ifdef INET6
case AF_INET6:
net->mtu += SCTP_MIN_OVERHEAD;
break;
#endif
#if defined(__Userspace__)
case AF_CONN:
net->mtu += sizeof(struct sctphdr);
break;
#endif
default:
break;
}
if (net->mtu < stcb->asoc.smallest_mtu) {
sctp_pathmtu_adjustment(stcb, net->mtu);
}
}
if (paddrp->spp_flags & SPP_PMTUD_ENABLE) {
if (!SCTP_OS_TIMER_PENDING(&net->pmtu_timer.timer)) {
sctp_timer_start(SCTP_TIMER_TYPE_PATHMTURAISE, inp, stcb, net);
}
net->dest_state &= ~SCTP_ADDR_NO_PMTUD;
}
if (paddrp->spp_pathmaxrxt) {
if (net->dest_state & SCTP_ADDR_PF) {
if (net->error_count > paddrp->spp_pathmaxrxt) {
net->dest_state &= ~SCTP_ADDR_PF;
}
} else {
if ((net->error_count <= paddrp->spp_pathmaxrxt) &&
(net->error_count > net->pf_threshold)) {
net->dest_state |= SCTP_ADDR_PF;
sctp_send_hb(stcb, net, SCTP_SO_LOCKED);
sctp_timer_stop(SCTP_TIMER_TYPE_HEARTBEAT,
stcb->sctp_ep, stcb, net,
SCTP_FROM_SCTP_USRREQ + SCTP_LOC_12);
sctp_timer_start(SCTP_TIMER_TYPE_HEARTBEAT, stcb->sctp_ep, stcb, net);
}
}
if (net->dest_state & SCTP_ADDR_REACHABLE) {
if (net->error_count > paddrp->spp_pathmaxrxt) {
net->dest_state &= ~SCTP_ADDR_REACHABLE;
sctp_ulp_notify(SCTP_NOTIFY_INTERFACE_DOWN, stcb, 0, net, SCTP_SO_LOCKED);
}
} else {
if (net->error_count <= paddrp->spp_pathmaxrxt) {
net->dest_state |= SCTP_ADDR_REACHABLE;
sctp_ulp_notify(SCTP_NOTIFY_INTERFACE_UP, stcb, 0, net, SCTP_SO_LOCKED);
}
}
net->failure_threshold = paddrp->spp_pathmaxrxt;
}
if (paddrp->spp_flags & SPP_DSCP) {
net->dscp = paddrp->spp_dscp & 0xfc;
net->dscp |= 0x01;
}
#ifdef INET6
if (paddrp->spp_flags & SPP_IPV6_FLOWLABEL) {
if (net->ro._l_addr.sa.sa_family == AF_INET6) {
net->flowlabel = paddrp->spp_ipv6_flowlabel & 0x000fffff;
net->flowlabel |= 0x80000000;
}
}
#endif
} else {
/************************ASSOC ONLY -- NO NET SPECIFIC SET ******************/
if (paddrp->spp_pathmaxrxt != 0) {
stcb->asoc.def_net_failure = paddrp->spp_pathmaxrxt;
TAILQ_FOREACH(net, &stcb->asoc.nets, sctp_next) {
if (net->dest_state & SCTP_ADDR_PF) {
if (net->error_count > paddrp->spp_pathmaxrxt) {
net->dest_state &= ~SCTP_ADDR_PF;
}
} else {
if ((net->error_count <= paddrp->spp_pathmaxrxt) &&
(net->error_count > net->pf_threshold)) {
net->dest_state |= SCTP_ADDR_PF;
sctp_send_hb(stcb, net, SCTP_SO_LOCKED);
sctp_timer_stop(SCTP_TIMER_TYPE_HEARTBEAT,
stcb->sctp_ep, stcb, net,
SCTP_FROM_SCTP_USRREQ + SCTP_LOC_13);
sctp_timer_start(SCTP_TIMER_TYPE_HEARTBEAT, stcb->sctp_ep, stcb, net);
}
}
if (net->dest_state & SCTP_ADDR_REACHABLE) {
if (net->error_count > paddrp->spp_pathmaxrxt) {
net->dest_state &= ~SCTP_ADDR_REACHABLE;
sctp_ulp_notify(SCTP_NOTIFY_INTERFACE_DOWN, stcb, 0, net, SCTP_SO_LOCKED);
}
} else {
if (net->error_count <= paddrp->spp_pathmaxrxt) {
net->dest_state |= SCTP_ADDR_REACHABLE;
sctp_ulp_notify(SCTP_NOTIFY_INTERFACE_UP, stcb, 0, net, SCTP_SO_LOCKED);
}
}
net->failure_threshold = paddrp->spp_pathmaxrxt;
}
}
if (paddrp->spp_flags & SPP_HB_ENABLE) {
if (paddrp->spp_hbinterval != 0) {
stcb->asoc.heart_beat_delay = paddrp->spp_hbinterval;
} else if (paddrp->spp_flags & SPP_HB_TIME_IS_ZERO) {
stcb->asoc.heart_beat_delay = 0;
}
/* Turn back on the timer */
TAILQ_FOREACH(net, &stcb->asoc.nets, sctp_next) {
if (paddrp->spp_hbinterval != 0) {
net->heart_beat_delay = paddrp->spp_hbinterval;
} else if (paddrp->spp_flags & SPP_HB_TIME_IS_ZERO) {
net->heart_beat_delay = 0;
}
if (net->dest_state & SCTP_ADDR_NOHB) {
net->dest_state &= ~SCTP_ADDR_NOHB;
}
sctp_timer_stop(SCTP_TIMER_TYPE_HEARTBEAT, inp, stcb, net,
SCTP_FROM_SCTP_USRREQ + SCTP_LOC_14);
sctp_timer_start(SCTP_TIMER_TYPE_HEARTBEAT, inp, stcb, net);
}
sctp_stcb_feature_off(inp, stcb, SCTP_PCB_FLAGS_DONOT_HEARTBEAT);
}
if (paddrp->spp_flags & SPP_HB_DISABLE) {
TAILQ_FOREACH(net, &stcb->asoc.nets, sctp_next) {
if (!(net->dest_state & SCTP_ADDR_NOHB)) {
net->dest_state |= SCTP_ADDR_NOHB;
if (!(net->dest_state & SCTP_ADDR_UNCONFIRMED)) {
sctp_timer_stop(SCTP_TIMER_TYPE_HEARTBEAT,
inp, stcb, net,
SCTP_FROM_SCTP_USRREQ + SCTP_LOC_15);
}
}
}
sctp_stcb_feature_on(inp, stcb, SCTP_PCB_FLAGS_DONOT_HEARTBEAT);
}
if (paddrp->spp_flags & SPP_PMTUD_DISABLE) {
TAILQ_FOREACH(net, &stcb->asoc.nets, sctp_next) {
if (SCTP_OS_TIMER_PENDING(&net->pmtu_timer.timer)) {
sctp_timer_stop(SCTP_TIMER_TYPE_PATHMTURAISE, inp, stcb, net,
SCTP_FROM_SCTP_USRREQ + SCTP_LOC_16);
}
net->dest_state |= SCTP_ADDR_NO_PMTUD;
net->mtu = paddrp->spp_pathmtu;
switch (net->ro._l_addr.sa.sa_family) {
#ifdef INET
case AF_INET:
net->mtu += SCTP_MIN_V4_OVERHEAD;
break;
#endif
#ifdef INET6
case AF_INET6:
net->mtu += SCTP_MIN_OVERHEAD;
break;
#endif
#if defined(__Userspace__)
case AF_CONN:
net->mtu += sizeof(struct sctphdr);
break;
#endif
default:
break;
}
if (net->mtu < stcb->asoc.smallest_mtu) {
sctp_pathmtu_adjustment(stcb, net->mtu);
}
}
stcb->asoc.default_mtu = paddrp->spp_pathmtu;
sctp_stcb_feature_on(inp, stcb, SCTP_PCB_FLAGS_DO_NOT_PMTUD);
}
if (paddrp->spp_flags & SPP_PMTUD_ENABLE) {
TAILQ_FOREACH(net, &stcb->asoc.nets, sctp_next) {
if (!SCTP_OS_TIMER_PENDING(&net->pmtu_timer.timer)) {
sctp_timer_start(SCTP_TIMER_TYPE_PATHMTURAISE, inp, stcb, net);
}
net->dest_state &= ~SCTP_ADDR_NO_PMTUD;
}
stcb->asoc.default_mtu = 0;
sctp_stcb_feature_off(inp, stcb, SCTP_PCB_FLAGS_DO_NOT_PMTUD);
}
if (paddrp->spp_flags & SPP_DSCP) {
TAILQ_FOREACH(net, &stcb->asoc.nets, sctp_next) {
net->dscp = paddrp->spp_dscp & 0xfc;
net->dscp |= 0x01;
}
stcb->asoc.default_dscp = paddrp->spp_dscp & 0xfc;
stcb->asoc.default_dscp |= 0x01;
}
#ifdef INET6
if (paddrp->spp_flags & SPP_IPV6_FLOWLABEL) {
TAILQ_FOREACH(net, &stcb->asoc.nets, sctp_next) {
if (net->ro._l_addr.sa.sa_family == AF_INET6) {
net->flowlabel = paddrp->spp_ipv6_flowlabel & 0x000fffff;
net->flowlabel |= 0x80000000;
}
}
stcb->asoc.default_flowlabel = paddrp->spp_ipv6_flowlabel & 0x000fffff;
stcb->asoc.default_flowlabel |= 0x80000000;
}
#endif
}
SCTP_TCB_UNLOCK(stcb);
} else {
/************************NO TCB, SET TO default stuff ******************/
if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
(inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
(paddrp->spp_assoc_id == SCTP_FUTURE_ASSOC))) {
SCTP_INP_WLOCK(inp);
/*
* For the TOS/FLOWLABEL stuff you set it
* with the options on the socket
*/
if (paddrp->spp_pathmaxrxt != 0) {
inp->sctp_ep.def_net_failure = paddrp->spp_pathmaxrxt;
}
if (paddrp->spp_flags & SPP_HB_TIME_IS_ZERO)
inp->sctp_ep.sctp_timeoutticks[SCTP_TIMER_HEARTBEAT] = 0;
else if (paddrp->spp_hbinterval != 0) {
if (paddrp->spp_hbinterval > SCTP_MAX_HB_INTERVAL)
paddrp->spp_hbinterval= SCTP_MAX_HB_INTERVAL;
inp->sctp_ep.sctp_timeoutticks[SCTP_TIMER_HEARTBEAT] = sctp_msecs_to_ticks(paddrp->spp_hbinterval);
}
if (paddrp->spp_flags & SPP_HB_ENABLE) {
if (paddrp->spp_flags & SPP_HB_TIME_IS_ZERO) {
inp->sctp_ep.sctp_timeoutticks[SCTP_TIMER_HEARTBEAT] = 0;
} else if (paddrp->spp_hbinterval) {
inp->sctp_ep.sctp_timeoutticks[SCTP_TIMER_HEARTBEAT] = sctp_msecs_to_ticks(paddrp->spp_hbinterval);
}
sctp_feature_off(inp, SCTP_PCB_FLAGS_DONOT_HEARTBEAT);
} else if (paddrp->spp_flags & SPP_HB_DISABLE) {
sctp_feature_on(inp, SCTP_PCB_FLAGS_DONOT_HEARTBEAT);
}
if (paddrp->spp_flags & SPP_PMTUD_ENABLE) {
inp->sctp_ep.default_mtu = 0;
sctp_feature_off(inp, SCTP_PCB_FLAGS_DO_NOT_PMTUD);
} else if (paddrp->spp_flags & SPP_PMTUD_DISABLE) {
inp->sctp_ep.default_mtu = paddrp->spp_pathmtu;
sctp_feature_on(inp, SCTP_PCB_FLAGS_DO_NOT_PMTUD);
}
if (paddrp->spp_flags & SPP_DSCP) {
inp->sctp_ep.default_dscp = paddrp->spp_dscp & 0xfc;
inp->sctp_ep.default_dscp |= 0x01;
}
#ifdef INET6
if (paddrp->spp_flags & SPP_IPV6_FLOWLABEL) {
if (inp->sctp_flags & SCTP_PCB_FLAGS_BOUND_V6) {
inp->sctp_ep.default_flowlabel = paddrp->spp_ipv6_flowlabel & 0x000fffff;
inp->sctp_ep.default_flowlabel |= 0x80000000;
}
}
#endif
SCTP_INP_WUNLOCK(inp);
} else {
SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
error = EINVAL;
}
}
break;
}
case SCTP_RTOINFO:
{
struct sctp_rtoinfo *srto;
uint32_t new_init, new_min, new_max;
SCTP_CHECK_AND_CAST(srto, optval, struct sctp_rtoinfo, optsize);
SCTP_FIND_STCB(inp, stcb, srto->srto_assoc_id);
if (stcb) {
if (srto->srto_initial)
new_init = srto->srto_initial;
else
new_init = stcb->asoc.initial_rto;
if (srto->srto_max)
new_max = srto->srto_max;
else
new_max = stcb->asoc.maxrto;
if (srto->srto_min)
new_min = srto->srto_min;
else
new_min = stcb->asoc.minrto;
if ((new_min <= new_init) && (new_init <= new_max)) {
stcb->asoc.initial_rto = new_init;
stcb->asoc.maxrto = new_max;
stcb->asoc.minrto = new_min;
} else {
SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
error = EINVAL;
}
SCTP_TCB_UNLOCK(stcb);
} else {
if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
(inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
(srto->srto_assoc_id == SCTP_FUTURE_ASSOC))) {
SCTP_INP_WLOCK(inp);
if (srto->srto_initial)
new_init = srto->srto_initial;
else
new_init = inp->sctp_ep.initial_rto;
if (srto->srto_max)
new_max = srto->srto_max;
else
new_max = inp->sctp_ep.sctp_maxrto;
if (srto->srto_min)
new_min = srto->srto_min;
else
new_min = inp->sctp_ep.sctp_minrto;
if ((new_min <= new_init) && (new_init <= new_max)) {
inp->sctp_ep.initial_rto = new_init;
inp->sctp_ep.sctp_maxrto = new_max;
inp->sctp_ep.sctp_minrto = new_min;
} else {
SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
error = EINVAL;
}
SCTP_INP_WUNLOCK(inp);
} else {
SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
error = EINVAL;
}
}
break;
}
case SCTP_ASSOCINFO:
{
struct sctp_assocparams *sasoc;
SCTP_CHECK_AND_CAST(sasoc, optval, struct sctp_assocparams, optsize);
SCTP_FIND_STCB(inp, stcb, sasoc->sasoc_assoc_id);
if (sasoc->sasoc_cookie_life > 0) {
/* boundary check the cookie life */
if (sasoc->sasoc_cookie_life < SCTP_MIN_COOKIE_LIFE) {
sasoc->sasoc_cookie_life = SCTP_MIN_COOKIE_LIFE;
}
if (sasoc->sasoc_cookie_life > SCTP_MAX_COOKIE_LIFE) {
sasoc->sasoc_cookie_life = SCTP_MAX_COOKIE_LIFE;
}
}
if (stcb) {
if (sasoc->sasoc_asocmaxrxt > 0) {
stcb->asoc.max_send_times = sasoc->sasoc_asocmaxrxt;
}
if (sasoc->sasoc_cookie_life > 0) {
stcb->asoc.cookie_life = sctp_msecs_to_ticks(sasoc->sasoc_cookie_life);
}
SCTP_TCB_UNLOCK(stcb);
} else {
if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
(inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
(sasoc->sasoc_assoc_id == SCTP_FUTURE_ASSOC))) {
SCTP_INP_WLOCK(inp);
if (sasoc->sasoc_asocmaxrxt > 0) {
inp->sctp_ep.max_send_times = sasoc->sasoc_asocmaxrxt;
}
if (sasoc->sasoc_cookie_life > 0) {
inp->sctp_ep.def_cookie_life = sctp_msecs_to_ticks(sasoc->sasoc_cookie_life);
}
SCTP_INP_WUNLOCK(inp);
} else {
SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
error = EINVAL;
}
}
break;
}
case SCTP_INITMSG:
{
struct sctp_initmsg *sinit;
SCTP_CHECK_AND_CAST(sinit, optval, struct sctp_initmsg, optsize);
SCTP_INP_WLOCK(inp);
if (sinit->sinit_num_ostreams)
inp->sctp_ep.pre_open_stream_count = sinit->sinit_num_ostreams;
if (sinit->sinit_max_instreams)
inp->sctp_ep.max_open_streams_intome = sinit->sinit_max_instreams;
if (sinit->sinit_max_attempts)
inp->sctp_ep.max_init_times = sinit->sinit_max_attempts;
if (sinit->sinit_max_init_timeo)
inp->sctp_ep.initial_init_rto_max = sinit->sinit_max_init_timeo;
SCTP_INP_WUNLOCK(inp);
break;
}
case SCTP_PRIMARY_ADDR:
{
struct sctp_setprim *spa;
struct sctp_nets *net;
struct sockaddr *addr;
#if defined(INET) && defined(INET6)
struct sockaddr_in sin_store;
#endif
SCTP_CHECK_AND_CAST(spa, optval, struct sctp_setprim, optsize);
SCTP_FIND_STCB(inp, stcb, spa->ssp_assoc_id);
#if defined(INET) && defined(INET6)
if (spa->ssp_addr.ss_family == AF_INET6) {
struct sockaddr_in6 *sin6;
sin6 = (struct sockaddr_in6 *)&spa->ssp_addr;
if (IN6_IS_ADDR_V4MAPPED(&sin6->sin6_addr)) {
in6_sin6_2_sin(&sin_store, sin6);
addr = (struct sockaddr *)&sin_store;
} else {
addr = (struct sockaddr *)&spa->ssp_addr;
}
} else {
addr = (struct sockaddr *)&spa->ssp_addr;
}
#else
addr = (struct sockaddr *)&spa->ssp_addr;
#endif
if (stcb != NULL) {
net = sctp_findnet(stcb, addr);
} else {
/* We increment here since sctp_findassociation_ep_addr() wil
* do a decrement if it finds the stcb as long as the locked
* tcb (last argument) is NOT a TCB.. aka NULL.
*/
net = NULL;
SCTP_INP_INCR_REF(inp);
stcb = sctp_findassociation_ep_addr(&inp, addr,
&net, NULL, NULL);
if (stcb == NULL) {
SCTP_INP_DECR_REF(inp);
}
}
if ((stcb != NULL) && (net != NULL)) {
if (net != stcb->asoc.primary_destination) {
if (!(net->dest_state & SCTP_ADDR_UNCONFIRMED)) {
/* Ok we need to set it */
if (sctp_set_primary_addr(stcb, (struct sockaddr *)NULL, net) == 0) {
if ((stcb->asoc.alternate) &&
(!(net->dest_state & SCTP_ADDR_PF)) &&
(net->dest_state & SCTP_ADDR_REACHABLE)) {
sctp_free_remote_addr(stcb->asoc.alternate);
stcb->asoc.alternate = NULL;
}
} else {
SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
error = EINVAL;
}
} else {
SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
error = EINVAL;
}
}
} else {
SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
error = EINVAL;
}
if (stcb != NULL) {
SCTP_TCB_UNLOCK(stcb);
}
break;
}
case SCTP_SET_DYNAMIC_PRIMARY:
{
union sctp_sockstore *ss;
#ifdef SCTP_MVRF
int i, fnd = 0;
#endif
#if !defined(_WIN32) && !defined(__Userspace__)
#if defined(__APPLE__)
struct proc *proc;
#endif
#if defined(__FreeBSD__)
error = priv_check(curthread,
PRIV_NETINET_RESERVEDPORT);
#elif defined(__APPLE__)
proc = (struct proc *)p;
if (p) {
error = suser(proc->p_ucred, &proc->p_acflag);
} else {
break;
}
#else
error = suser(p, 0);
#endif
if (error)
break;
#endif
SCTP_CHECK_AND_CAST(ss, optval, union sctp_sockstore, optsize);
/* SUPER USER CHECK? */
#ifdef SCTP_MVRF
for (i = 0; i < inp->num_vrfs; i++) {
if (vrf_id == inp->m_vrf_ids[i]) {
fnd = 1;
break;
}
}
if (!fnd) {
SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
error = EINVAL;
break;
}
#endif
error = sctp_dynamic_set_primary(&ss->sa, vrf_id);
break;
}
case SCTP_SET_PEER_PRIMARY_ADDR:
{
struct sctp_setpeerprim *sspp;
struct sockaddr *addr;
#if defined(INET) && defined(INET6)
struct sockaddr_in sin_store;
#endif
SCTP_CHECK_AND_CAST(sspp, optval, struct sctp_setpeerprim, optsize);
SCTP_FIND_STCB(inp, stcb, sspp->sspp_assoc_id);
if (stcb != NULL) {
struct sctp_ifa *ifa;
#if defined(INET) && defined(INET6)
if (sspp->sspp_addr.ss_family == AF_INET6) {
struct sockaddr_in6 *sin6;
sin6 = (struct sockaddr_in6 *)&sspp->sspp_addr;
if (IN6_IS_ADDR_V4MAPPED(&sin6->sin6_addr)) {
in6_sin6_2_sin(&sin_store, sin6);
addr = (struct sockaddr *)&sin_store;
} else {
addr = (struct sockaddr *)&sspp->sspp_addr;
}
} else {
addr = (struct sockaddr *)&sspp->sspp_addr;
}
#else
addr = (struct sockaddr *)&sspp->sspp_addr;
#endif
ifa = sctp_find_ifa_by_addr(addr, stcb->asoc.vrf_id, SCTP_ADDR_NOT_LOCKED);
if (ifa == NULL) {
SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
error = EINVAL;
goto out_of_it;
}
if ((inp->sctp_flags & SCTP_PCB_FLAGS_BOUNDALL) == 0) {
/* Must validate the ifa found is in our ep */
struct sctp_laddr *laddr;
int found = 0;
LIST_FOREACH(laddr, &inp->sctp_addr_list, sctp_nxt_addr) {
if (laddr->ifa == NULL) {
SCTPDBG(SCTP_DEBUG_OUTPUT1, "%s: NULL ifa\n",
__func__);
continue;
}
if ((sctp_is_addr_restricted(stcb, laddr->ifa)) &&
(!sctp_is_addr_pending(stcb, laddr->ifa))) {
continue;
}
if (laddr->ifa == ifa) {
found = 1;
break;
}
}
if (!found) {
SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
error = EINVAL;
goto out_of_it;
}
#if defined(__FreeBSD__) && !defined(__Userspace__)
} else {
switch (addr->sa_family) {
#ifdef INET
case AF_INET:
{
struct sockaddr_in *sin;
sin = (struct sockaddr_in *)addr;
if (prison_check_ip4(inp->ip_inp.inp.inp_cred,
&sin->sin_addr) != 0) {
SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
error = EINVAL;
goto out_of_it;
}
break;
}
#endif
#ifdef INET6
case AF_INET6:
{
struct sockaddr_in6 *sin6;
sin6 = (struct sockaddr_in6 *)addr;
if (prison_check_ip6(inp->ip_inp.inp.inp_cred,
&sin6->sin6_addr) != 0) {
SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
error = EINVAL;
goto out_of_it;
}
break;
}
#endif
default:
SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
error = EINVAL;
goto out_of_it;
}
#endif
}
if (sctp_set_primary_ip_address_sa(stcb, addr) != 0) {
SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
error = EINVAL;
}
sctp_chunk_output(inp, stcb, SCTP_OUTPUT_FROM_SOCKOPT, SCTP_SO_LOCKED);
out_of_it:
SCTP_TCB_UNLOCK(stcb);
} else {
SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
error = EINVAL;
}
break;
}
case SCTP_BINDX_ADD_ADDR:
{
struct sockaddr *sa;
#if defined(__FreeBSD__) && !defined(__Userspace__)
struct thread *td;
td = (struct thread *)p;
#endif
SCTP_CHECK_AND_CAST(sa, optval, struct sockaddr, optsize);
#ifdef INET
if (sa->sa_family == AF_INET) {
if (optsize < sizeof(struct sockaddr_in)) {
SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
error = EINVAL;
break;
}
#if defined(__FreeBSD__) && !defined(__Userspace__)
if (td != NULL &&
(error = prison_local_ip4(td->td_ucred, &(((struct sockaddr_in *)sa)->sin_addr)))) {
SCTP_LTRACE_ERR_RET(inp, stcb, NULL, SCTP_FROM_SCTP_USRREQ, error);
break;
}
#endif
} else
#endif
#ifdef INET6
if (sa->sa_family == AF_INET6) {
if (optsize < sizeof(struct sockaddr_in6)) {
SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
error = EINVAL;
break;
}
#if defined(__FreeBSD__) && !defined(__Userspace__)
if (td != NULL &&
(error = prison_local_ip6(td->td_ucred,
&(((struct sockaddr_in6 *)sa)->sin6_addr),
(SCTP_IPV6_V6ONLY(inp) != 0))) != 0) {
SCTP_LTRACE_ERR_RET(inp, stcb, NULL, SCTP_FROM_SCTP_USRREQ, error);
break;
}
#endif
} else
#endif
{
error = EAFNOSUPPORT;
break;
}
sctp_bindx_add_address(so, inp, sa, vrf_id, &error, p);
break;
}
case SCTP_BINDX_REM_ADDR:
{
struct sockaddr *sa;
#if defined(__FreeBSD__) && !defined(__Userspace__)
struct thread *td;
td = (struct thread *)p;
#endif
SCTP_CHECK_AND_CAST(sa, optval, struct sockaddr, optsize);
#ifdef INET
if (sa->sa_family == AF_INET) {
if (optsize < sizeof(struct sockaddr_in)) {
SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
error = EINVAL;
break;
}
#if defined(__FreeBSD__) && !defined(__Userspace__)
if (td != NULL &&
(error = prison_local_ip4(td->td_ucred, &(((struct sockaddr_in *)sa)->sin_addr)))) {
SCTP_LTRACE_ERR_RET(inp, stcb, NULL, SCTP_FROM_SCTP_USRREQ, error);
break;
}
#endif
} else
#endif
#ifdef INET6
if (sa->sa_family == AF_INET6) {
if (optsize < sizeof(struct sockaddr_in6)) {
SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
error = EINVAL;
break;
}
#if defined(__FreeBSD__) && !defined(__Userspace__)
if (td != NULL &&
(error = prison_local_ip6(td->td_ucred,
&(((struct sockaddr_in6 *)sa)->sin6_addr),
(SCTP_IPV6_V6ONLY(inp) != 0))) != 0) {
SCTP_LTRACE_ERR_RET(inp, stcb, NULL, SCTP_FROM_SCTP_USRREQ, error);
break;
}
#endif
} else
#endif
{
error = EAFNOSUPPORT;
break;
}
sctp_bindx_delete_address(inp, sa, vrf_id, &error);
break;
}
#if defined(__APPLE__) && !defined(__Userspace__)
case SCTP_LISTEN_FIX:
/* only applies to one-to-many sockets */
if (inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) {
/* make sure the ACCEPTCONN flag is OFF */
so->so_options &= ~SO_ACCEPTCONN;
} else {
/* otherwise, not allowed */
SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
error = EINVAL;
}
break;
#endif
case SCTP_EVENT:
{
struct sctp_event *event;
uint32_t event_type;
SCTP_CHECK_AND_CAST(event, optval, struct sctp_event, optsize);
SCTP_FIND_STCB(inp, stcb, event->se_assoc_id);
switch (event->se_type) {
case SCTP_ASSOC_CHANGE:
event_type = SCTP_PCB_FLAGS_RECVASSOCEVNT;
break;
case SCTP_PEER_ADDR_CHANGE:
event_type = SCTP_PCB_FLAGS_RECVPADDREVNT;
break;
case SCTP_REMOTE_ERROR:
event_type = SCTP_PCB_FLAGS_RECVPEERERR;
break;
case SCTP_SEND_FAILED:
event_type = SCTP_PCB_FLAGS_RECVSENDFAILEVNT;
break;
case SCTP_SHUTDOWN_EVENT:
event_type = SCTP_PCB_FLAGS_RECVSHUTDOWNEVNT;
break;
case SCTP_ADAPTATION_INDICATION:
event_type = SCTP_PCB_FLAGS_ADAPTATIONEVNT;
break;
case SCTP_PARTIAL_DELIVERY_EVENT:
event_type = SCTP_PCB_FLAGS_PDAPIEVNT;
break;
case SCTP_AUTHENTICATION_EVENT:
event_type = SCTP_PCB_FLAGS_AUTHEVNT;
break;
case SCTP_STREAM_RESET_EVENT:
event_type = SCTP_PCB_FLAGS_STREAM_RESETEVNT;
break;
case SCTP_SENDER_DRY_EVENT:
event_type = SCTP_PCB_FLAGS_DRYEVNT;
break;
case SCTP_NOTIFICATIONS_STOPPED_EVENT:
event_type = 0;
SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOTSUP);
error = ENOTSUP;
break;
case SCTP_ASSOC_RESET_EVENT:
event_type = SCTP_PCB_FLAGS_ASSOC_RESETEVNT;
break;
case SCTP_STREAM_CHANGE_EVENT:
event_type = SCTP_PCB_FLAGS_STREAM_CHANGEEVNT;
break;
case SCTP_SEND_FAILED_EVENT:
event_type = SCTP_PCB_FLAGS_RECVNSENDFAILEVNT;
break;
default:
event_type = 0;
SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
error = EINVAL;
break;
}
if (event_type > 0) {
if (stcb) {
if (event->se_on) {
sctp_stcb_feature_on(inp, stcb, event_type);
if (event_type == SCTP_PCB_FLAGS_DRYEVNT) {
if (TAILQ_EMPTY(&stcb->asoc.send_queue) &&
TAILQ_EMPTY(&stcb->asoc.sent_queue) &&
(stcb->asoc.stream_queue_cnt == 0)) {
sctp_ulp_notify(SCTP_NOTIFY_SENDER_DRY, stcb, 0, NULL, SCTP_SO_LOCKED);
}
}
} else {
sctp_stcb_feature_off(inp, stcb, event_type);
}
SCTP_TCB_UNLOCK(stcb);
} else {
/*
* We don't want to send up a storm of events,
* so return an error for sender dry events
*/
if ((event_type == SCTP_PCB_FLAGS_DRYEVNT) &&
(inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
((event->se_assoc_id == SCTP_ALL_ASSOC) ||
(event->se_assoc_id == SCTP_CURRENT_ASSOC))) {
SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOTSUP);
error = ENOTSUP;
break;
}
if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
(inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
((event->se_assoc_id == SCTP_FUTURE_ASSOC) ||
(event->se_assoc_id == SCTP_ALL_ASSOC)))) {
SCTP_INP_WLOCK(inp);
if (event->se_on) {
sctp_feature_on(inp, event_type);
} else {
sctp_feature_off(inp, event_type);
}
SCTP_INP_WUNLOCK(inp);
}
if ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
((event->se_assoc_id == SCTP_CURRENT_ASSOC) ||
(event->se_assoc_id == SCTP_ALL_ASSOC))) {
SCTP_INP_RLOCK(inp);
LIST_FOREACH(stcb, &inp->sctp_asoc_list, sctp_tcblist) {
SCTP_TCB_LOCK(stcb);
if (event->se_on) {
sctp_stcb_feature_on(inp, stcb, event_type);
} else {
sctp_stcb_feature_off(inp, stcb, event_type);
}
SCTP_TCB_UNLOCK(stcb);
}
SCTP_INP_RUNLOCK(inp);
}
}
} else {
if (stcb) {
SCTP_TCB_UNLOCK(stcb);
}
}
break;
}
case SCTP_RECVRCVINFO:
{
int *onoff;
SCTP_CHECK_AND_CAST(onoff, optval, int, optsize);
SCTP_INP_WLOCK(inp);
if (*onoff != 0) {
sctp_feature_on(inp, SCTP_PCB_FLAGS_RECVRCVINFO);
} else {
sctp_feature_off(inp, SCTP_PCB_FLAGS_RECVRCVINFO);
}
SCTP_INP_WUNLOCK(inp);
break;
}
case SCTP_RECVNXTINFO:
{
int *onoff;
SCTP_CHECK_AND_CAST(onoff, optval, int, optsize);
SCTP_INP_WLOCK(inp);
if (*onoff != 0) {
sctp_feature_on(inp, SCTP_PCB_FLAGS_RECVNXTINFO);
} else {
sctp_feature_off(inp, SCTP_PCB_FLAGS_RECVNXTINFO);
}
SCTP_INP_WUNLOCK(inp);
break;
}
case SCTP_DEFAULT_SNDINFO:
{
struct sctp_sndinfo *info;
uint16_t policy;
SCTP_CHECK_AND_CAST(info, optval, struct sctp_sndinfo, optsize);
SCTP_FIND_STCB(inp, stcb, info->snd_assoc_id);
if (stcb) {
if (info->snd_sid < stcb->asoc.streamoutcnt) {
stcb->asoc.def_send.sinfo_stream = info->snd_sid;
policy = PR_SCTP_POLICY(stcb->asoc.def_send.sinfo_flags);
stcb->asoc.def_send.sinfo_flags = info->snd_flags;
stcb->asoc.def_send.sinfo_flags |= policy;
stcb->asoc.def_send.sinfo_ppid = info->snd_ppid;
stcb->asoc.def_send.sinfo_context = info->snd_context;
} else {
SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
error = EINVAL;
}
SCTP_TCB_UNLOCK(stcb);
} else {
if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
(inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
((info->snd_assoc_id == SCTP_FUTURE_ASSOC) ||
(info->snd_assoc_id == SCTP_ALL_ASSOC)))) {
SCTP_INP_WLOCK(inp);
inp->def_send.sinfo_stream = info->snd_sid;
policy = PR_SCTP_POLICY(inp->def_send.sinfo_flags);
inp->def_send.sinfo_flags = info->snd_flags;
inp->def_send.sinfo_flags |= policy;
inp->def_send.sinfo_ppid = info->snd_ppid;
inp->def_send.sinfo_context = info->snd_context;
SCTP_INP_WUNLOCK(inp);
}
if ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
((info->snd_assoc_id == SCTP_CURRENT_ASSOC) ||
(info->snd_assoc_id == SCTP_ALL_ASSOC))) {
SCTP_INP_RLOCK(inp);
LIST_FOREACH(stcb, &inp->sctp_asoc_list, sctp_tcblist) {
SCTP_TCB_LOCK(stcb);
if (info->snd_sid < stcb->asoc.streamoutcnt) {
stcb->asoc.def_send.sinfo_stream = info->snd_sid;
policy = PR_SCTP_POLICY(stcb->asoc.def_send.sinfo_flags);
stcb->asoc.def_send.sinfo_flags = info->snd_flags;
stcb->asoc.def_send.sinfo_flags |= policy;
stcb->asoc.def_send.sinfo_ppid = info->snd_ppid;
stcb->asoc.def_send.sinfo_context = info->snd_context;
}
SCTP_TCB_UNLOCK(stcb);
}
SCTP_INP_RUNLOCK(inp);
}
}
break;
}
case SCTP_DEFAULT_PRINFO:
{
struct sctp_default_prinfo *info;
SCTP_CHECK_AND_CAST(info, optval, struct sctp_default_prinfo, optsize);
SCTP_FIND_STCB(inp, stcb, info->pr_assoc_id);
if (info->pr_policy > SCTP_PR_SCTP_MAX) {
if (stcb) {
SCTP_TCB_UNLOCK(stcb);
}
SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
error = EINVAL;
break;
}
if (stcb) {
stcb->asoc.def_send.sinfo_flags &= 0xfff0;
stcb->asoc.def_send.sinfo_flags |= info->pr_policy;
stcb->asoc.def_send.sinfo_timetolive = info->pr_value;
SCTP_TCB_UNLOCK(stcb);
} else {
if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
(inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
((info->pr_assoc_id == SCTP_FUTURE_ASSOC) ||
(info->pr_assoc_id == SCTP_ALL_ASSOC)))) {
SCTP_INP_WLOCK(inp);
inp->def_send.sinfo_flags &= 0xfff0;
inp->def_send.sinfo_flags |= info->pr_policy;
inp->def_send.sinfo_timetolive = info->pr_value;
SCTP_INP_WUNLOCK(inp);
}
if ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
((info->pr_assoc_id == SCTP_CURRENT_ASSOC) ||
(info->pr_assoc_id == SCTP_ALL_ASSOC))) {
SCTP_INP_RLOCK(inp);
LIST_FOREACH(stcb, &inp->sctp_asoc_list, sctp_tcblist) {
SCTP_TCB_LOCK(stcb);
stcb->asoc.def_send.sinfo_flags &= 0xfff0;
stcb->asoc.def_send.sinfo_flags |= info->pr_policy;
stcb->asoc.def_send.sinfo_timetolive = info->pr_value;
SCTP_TCB_UNLOCK(stcb);
}
SCTP_INP_RUNLOCK(inp);
}
}
break;
}
case SCTP_PEER_ADDR_THLDS:
/* Applies to the specific association */
{
struct sctp_paddrthlds *thlds;
struct sctp_nets *net;
struct sockaddr *addr;
#if defined(INET) && defined(INET6)
struct sockaddr_in sin_store;
#endif
SCTP_CHECK_AND_CAST(thlds, optval, struct sctp_paddrthlds, optsize);
SCTP_FIND_STCB(inp, stcb, thlds->spt_assoc_id);
#if defined(INET) && defined(INET6)
if (thlds->spt_address.ss_family == AF_INET6) {
struct sockaddr_in6 *sin6;
sin6 = (struct sockaddr_in6 *)&thlds->spt_address;
if (IN6_IS_ADDR_V4MAPPED(&sin6->sin6_addr)) {
in6_sin6_2_sin(&sin_store, sin6);
addr = (struct sockaddr *)&sin_store;
} else {
addr = (struct sockaddr *)&thlds->spt_address;
}
} else {
addr = (struct sockaddr *)&thlds->spt_address;
}
#else
addr = (struct sockaddr *)&thlds->spt_address;
#endif
if (stcb != NULL) {
net = sctp_findnet(stcb, addr);
} else {
/* We increment here since sctp_findassociation_ep_addr() wil
* do a decrement if it finds the stcb as long as the locked
* tcb (last argument) is NOT a TCB.. aka NULL.
*/
net = NULL;
SCTP_INP_INCR_REF(inp);
stcb = sctp_findassociation_ep_addr(&inp, addr,
&net, NULL, NULL);
if (stcb == NULL) {
SCTP_INP_DECR_REF(inp);
}
}
if ((stcb != NULL) && (net == NULL)) {
#ifdef INET
if (addr->sa_family == AF_INET) {
struct sockaddr_in *sin;
sin = (struct sockaddr_in *)addr;
if (sin->sin_addr.s_addr != INADDR_ANY) {
SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
SCTP_TCB_UNLOCK(stcb);
error = EINVAL;
break;
}
} else
#endif
#ifdef INET6
if (addr->sa_family == AF_INET6) {
struct sockaddr_in6 *sin6;
sin6 = (struct sockaddr_in6 *)addr;
if (!IN6_IS_ADDR_UNSPECIFIED(&sin6->sin6_addr)) {
SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
SCTP_TCB_UNLOCK(stcb);
error = EINVAL;
break;
}
} else
#endif
#if defined(__Userspace__)
if (addr->sa_family == AF_CONN) {
struct sockaddr_conn *sconn;
sconn = (struct sockaddr_conn *)addr;
if (sconn->sconn_addr != NULL) {
SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
SCTP_TCB_UNLOCK(stcb);
error = EINVAL;
break;
}
} else
#endif
{
error = EAFNOSUPPORT;
SCTP_TCB_UNLOCK(stcb);
SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
break;
}
}
if (thlds->spt_pathcpthld != 0xffff) {
if (stcb != NULL) {
SCTP_TCB_UNLOCK(stcb);
}
error = EINVAL;
SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
break;
}
if (stcb != NULL) {
if (net != NULL) {
net->failure_threshold = thlds->spt_pathmaxrxt;
net->pf_threshold = thlds->spt_pathpfthld;
if (net->dest_state & SCTP_ADDR_PF) {
if ((net->error_count > net->failure_threshold) ||
(net->error_count <= net->pf_threshold)) {
net->dest_state &= ~SCTP_ADDR_PF;
}
} else {
if ((net->error_count > net->pf_threshold) &&
(net->error_count <= net->failure_threshold)) {
net->dest_state |= SCTP_ADDR_PF;
sctp_send_hb(stcb, net, SCTP_SO_LOCKED);
sctp_timer_stop(SCTP_TIMER_TYPE_HEARTBEAT,
stcb->sctp_ep, stcb, net,
SCTP_FROM_SCTP_USRREQ + SCTP_LOC_17);
sctp_timer_start(SCTP_TIMER_TYPE_HEARTBEAT, stcb->sctp_ep, stcb, net);
}
}
if (net->dest_state & SCTP_ADDR_REACHABLE) {
if (net->error_count > net->failure_threshold) {
net->dest_state &= ~SCTP_ADDR_REACHABLE;
sctp_ulp_notify(SCTP_NOTIFY_INTERFACE_DOWN, stcb, 0, net, SCTP_SO_LOCKED);
}
} else {
if (net->error_count <= net->failure_threshold) {
net->dest_state |= SCTP_ADDR_REACHABLE;
sctp_ulp_notify(SCTP_NOTIFY_INTERFACE_UP, stcb, 0, net, SCTP_SO_LOCKED);
}
}
} else {
TAILQ_FOREACH(net, &stcb->asoc.nets, sctp_next) {
net->failure_threshold = thlds->spt_pathmaxrxt;
net->pf_threshold = thlds->spt_pathpfthld;
if (net->dest_state & SCTP_ADDR_PF) {
if ((net->error_count > net->failure_threshold) ||
(net->error_count <= net->pf_threshold)) {
net->dest_state &= ~SCTP_ADDR_PF;
}
} else {
if ((net->error_count > net->pf_threshold) &&
(net->error_count <= net->failure_threshold)) {
net->dest_state |= SCTP_ADDR_PF;
sctp_send_hb(stcb, net, SCTP_SO_LOCKED);
sctp_timer_stop(SCTP_TIMER_TYPE_HEARTBEAT,
stcb->sctp_ep, stcb, net,
SCTP_FROM_SCTP_USRREQ + SCTP_LOC_18);
sctp_timer_start(SCTP_TIMER_TYPE_HEARTBEAT, stcb->sctp_ep, stcb, net);
}
}
if (net->dest_state & SCTP_ADDR_REACHABLE) {
if (net->error_count > net->failure_threshold) {
net->dest_state &= ~SCTP_ADDR_REACHABLE;
sctp_ulp_notify(SCTP_NOTIFY_INTERFACE_DOWN, stcb, 0, net, SCTP_SO_LOCKED);
}
} else {
if (net->error_count <= net->failure_threshold) {
net->dest_state |= SCTP_ADDR_REACHABLE;
sctp_ulp_notify(SCTP_NOTIFY_INTERFACE_UP, stcb, 0, net, SCTP_SO_LOCKED);
}
}
}
stcb->asoc.def_net_failure = thlds->spt_pathmaxrxt;
stcb->asoc.def_net_pf_threshold = thlds->spt_pathpfthld;
}
SCTP_TCB_UNLOCK(stcb);
} else {
if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
(inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
(thlds->spt_assoc_id == SCTP_FUTURE_ASSOC))) {
SCTP_INP_WLOCK(inp);
inp->sctp_ep.def_net_failure = thlds->spt_pathmaxrxt;
inp->sctp_ep.def_net_pf_threshold = thlds->spt_pathpfthld;
SCTP_INP_WUNLOCK(inp);
} else {
SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
error = EINVAL;
}
}
break;
}
case SCTP_REMOTE_UDP_ENCAPS_PORT:
{
struct sctp_udpencaps *encaps;
struct sctp_nets *net;
struct sockaddr *addr;
#if defined(INET) && defined(INET6)
struct sockaddr_in sin_store;
#endif
SCTP_CHECK_AND_CAST(encaps, optval, struct sctp_udpencaps, optsize);
SCTP_FIND_STCB(inp, stcb, encaps->sue_assoc_id);
#if defined(INET) && defined(INET6)
if (encaps->sue_address.ss_family == AF_INET6) {
struct sockaddr_in6 *sin6;
sin6 = (struct sockaddr_in6 *)&encaps->sue_address;
if (IN6_IS_ADDR_V4MAPPED(&sin6->sin6_addr)) {
in6_sin6_2_sin(&sin_store, sin6);
addr = (struct sockaddr *)&sin_store;
} else {
addr = (struct sockaddr *)&encaps->sue_address;
}
} else {
addr = (struct sockaddr *)&encaps->sue_address;
}
#else
addr = (struct sockaddr *)&encaps->sue_address;
#endif
if (stcb != NULL) {
net = sctp_findnet(stcb, addr);
} else {
/* We increment here since sctp_findassociation_ep_addr() wil
* do a decrement if it finds the stcb as long as the locked
* tcb (last argument) is NOT a TCB.. aka NULL.
*/
net = NULL;
SCTP_INP_INCR_REF(inp);
stcb = sctp_findassociation_ep_addr(&inp, addr, &net, NULL, NULL);
if (stcb == NULL) {
SCTP_INP_DECR_REF(inp);
}
}
if ((stcb != NULL) && (net == NULL)) {
#ifdef INET
if (addr->sa_family == AF_INET) {
struct sockaddr_in *sin;
sin = (struct sockaddr_in *)addr;
if (sin->sin_addr.s_addr != INADDR_ANY) {
SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
SCTP_TCB_UNLOCK(stcb);
error = EINVAL;
break;
}
} else
#endif
#ifdef INET6
if (addr->sa_family == AF_INET6) {
struct sockaddr_in6 *sin6;
sin6 = (struct sockaddr_in6 *)addr;
if (!IN6_IS_ADDR_UNSPECIFIED(&sin6->sin6_addr)) {
SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
SCTP_TCB_UNLOCK(stcb);
error = EINVAL;
break;
}
} else
#endif
#if defined(__Userspace__)
if (addr->sa_family == AF_CONN) {
struct sockaddr_conn *sconn;
sconn = (struct sockaddr_conn *)addr;
if (sconn->sconn_addr != NULL) {
SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
SCTP_TCB_UNLOCK(stcb);
error = EINVAL;
break;
}
} else
#endif
{
error = EAFNOSUPPORT;
SCTP_TCB_UNLOCK(stcb);
SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
break;
}
}
if (stcb != NULL) {
if (net != NULL) {
net->port = encaps->sue_port;
} else {
stcb->asoc.port = encaps->sue_port;
}
SCTP_TCB_UNLOCK(stcb);
} else {
if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
(inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
(encaps->sue_assoc_id == SCTP_FUTURE_ASSOC))) {
SCTP_INP_WLOCK(inp);
inp->sctp_ep.port = encaps->sue_port;
SCTP_INP_WUNLOCK(inp);
} else {
SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
error = EINVAL;
}
}
break;
}
case SCTP_ECN_SUPPORTED:
{
struct sctp_assoc_value *av;
SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, optsize);
SCTP_FIND_STCB(inp, stcb, av->assoc_id);
if (stcb) {
SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
error = EINVAL;
SCTP_TCB_UNLOCK(stcb);
} else {
if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
(inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
(av->assoc_id == SCTP_FUTURE_ASSOC))) {
SCTP_INP_WLOCK(inp);
if (av->assoc_value == 0) {
inp->ecn_supported = 0;
} else {
inp->ecn_supported = 1;
}
SCTP_INP_WUNLOCK(inp);
} else {
SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
error = EINVAL;
}
}
break;
}
case SCTP_PR_SUPPORTED:
{
struct sctp_assoc_value *av;
SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, optsize);
SCTP_FIND_STCB(inp, stcb, av->assoc_id);
if (stcb) {
SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
error = EINVAL;
SCTP_TCB_UNLOCK(stcb);
} else {
if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
(inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
(av->assoc_id == SCTP_FUTURE_ASSOC))) {
SCTP_INP_WLOCK(inp);
if (av->assoc_value == 0) {
inp->prsctp_supported = 0;
} else {
inp->prsctp_supported = 1;
}
SCTP_INP_WUNLOCK(inp);
} else {
SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
error = EINVAL;
}
}
break;
}
case SCTP_AUTH_SUPPORTED:
{
struct sctp_assoc_value *av;
SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, optsize);
SCTP_FIND_STCB(inp, stcb, av->assoc_id);
if (stcb) {
SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
error = EINVAL;
SCTP_TCB_UNLOCK(stcb);
} else {
if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
(inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
(av->assoc_id == SCTP_FUTURE_ASSOC))) {
if ((av->assoc_value == 0) &&
(inp->asconf_supported == 1)) {
/* AUTH is required for ASCONF */
SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
error = EINVAL;
} else {
SCTP_INP_WLOCK(inp);
if (av->assoc_value == 0) {
inp->auth_supported = 0;
} else {
inp->auth_supported = 1;
}
SCTP_INP_WUNLOCK(inp);
}
} else {
SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
error = EINVAL;
}
}
break;
}
case SCTP_ASCONF_SUPPORTED:
{
struct sctp_assoc_value *av;
SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, optsize);
SCTP_FIND_STCB(inp, stcb, av->assoc_id);
if (stcb) {
SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
error = EINVAL;
SCTP_TCB_UNLOCK(stcb);
} else {
if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
(inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
(av->assoc_id == SCTP_FUTURE_ASSOC))) {
if ((av->assoc_value != 0) &&
(inp->auth_supported == 0)) {
/* AUTH is required for ASCONF */
SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
error = EINVAL;
} else {
SCTP_INP_WLOCK(inp);
if (av->assoc_value == 0) {
inp->asconf_supported = 0;
sctp_auth_delete_chunk(SCTP_ASCONF,
inp->sctp_ep.local_auth_chunks);
sctp_auth_delete_chunk(SCTP_ASCONF_ACK,
inp->sctp_ep.local_auth_chunks);
} else {
inp->asconf_supported = 1;
sctp_auth_add_chunk(SCTP_ASCONF,
inp->sctp_ep.local_auth_chunks);
sctp_auth_add_chunk(SCTP_ASCONF_ACK,
inp->sctp_ep.local_auth_chunks);
}
SCTP_INP_WUNLOCK(inp);
}
} else {
SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
error = EINVAL;
}
}
break;
}
case SCTP_RECONFIG_SUPPORTED:
{
struct sctp_assoc_value *av;
SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, optsize);
SCTP_FIND_STCB(inp, stcb, av->assoc_id);
if (stcb) {
SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
error = EINVAL;
SCTP_TCB_UNLOCK(stcb);
} else {
if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
(inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
(av->assoc_id == SCTP_FUTURE_ASSOC))) {
SCTP_INP_WLOCK(inp);
if (av->assoc_value == 0) {
inp->reconfig_supported = 0;
} else {
inp->reconfig_supported = 1;
}
SCTP_INP_WUNLOCK(inp);
} else {
SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
error = EINVAL;
}
}
break;
}
case SCTP_NRSACK_SUPPORTED:
{
struct sctp_assoc_value *av;
SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, optsize);
SCTP_FIND_STCB(inp, stcb, av->assoc_id);
if (stcb) {
SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
error = EINVAL;
SCTP_TCB_UNLOCK(stcb);
} else {
if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
(inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
(av->assoc_id == SCTP_FUTURE_ASSOC))) {
SCTP_INP_WLOCK(inp);
if (av->assoc_value == 0) {
inp->nrsack_supported = 0;
} else {
inp->nrsack_supported = 1;
}
SCTP_INP_WUNLOCK(inp);
} else {
SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
error = EINVAL;
}
}
break;
}
case SCTP_PKTDROP_SUPPORTED:
{
struct sctp_assoc_value *av;
SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, optsize);
SCTP_FIND_STCB(inp, stcb, av->assoc_id);
if (stcb) {
SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
error = EINVAL;
SCTP_TCB_UNLOCK(stcb);
} else {
if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
(inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
(av->assoc_id == SCTP_FUTURE_ASSOC))) {
SCTP_INP_WLOCK(inp);
if (av->assoc_value == 0) {
inp->pktdrop_supported = 0;
} else {
inp->pktdrop_supported = 1;
}
SCTP_INP_WUNLOCK(inp);
} else {
SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
error = EINVAL;
}
}
break;
}
case SCTP_MAX_CWND:
{
struct sctp_assoc_value *av;
struct sctp_nets *net;
SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, optsize);
SCTP_FIND_STCB(inp, stcb, av->assoc_id);
if (stcb) {
stcb->asoc.max_cwnd = av->assoc_value;
if (stcb->asoc.max_cwnd > 0) {
TAILQ_FOREACH(net, &stcb->asoc.nets, sctp_next) {
if ((net->cwnd > stcb->asoc.max_cwnd) &&
(net->cwnd > (net->mtu - sizeof(struct sctphdr)))) {
net->cwnd = stcb->asoc.max_cwnd;
if (net->cwnd < (net->mtu - sizeof(struct sctphdr))) {
net->cwnd = net->mtu - sizeof(struct sctphdr);
}
}
}
}
SCTP_TCB_UNLOCK(stcb);
} else {
if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
(inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
(av->assoc_id == SCTP_FUTURE_ASSOC))) {
SCTP_INP_WLOCK(inp);
inp->max_cwnd = av->assoc_value;
SCTP_INP_WUNLOCK(inp);
} else {
SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
error = EINVAL;
}
}
break;
}
default:
SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOPROTOOPT);
error = ENOPROTOOPT;
break;
} /* end switch (opt) */
return (error);
}
#if !defined(__Userspace__)
int
sctp_ctloutput(struct socket *so, struct sockopt *sopt)
{
#if defined(__FreeBSD__)
struct epoch_tracker et;
struct sctp_inpcb *inp;
#endif
void *optval = NULL;
void *p;
size_t optsize = 0;
int error = 0;
#if defined(__FreeBSD__)
if ((sopt->sopt_level == SOL_SOCKET) &&
(sopt->sopt_name == SO_SETFIB)) {
inp = (struct sctp_inpcb *)so->so_pcb;
if (inp == NULL) {
SCTP_LTRACE_ERR_RET(so->so_pcb, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOBUFS);
return (EINVAL);
}
SCTP_INP_WLOCK(inp);
inp->fibnum = so->so_fibnum;
SCTP_INP_WUNLOCK(inp);
return (0);
}
#endif
if (sopt->sopt_level != IPPROTO_SCTP) {
/* wrong proto level... send back up to IP */
#ifdef INET6
if (INP_CHECK_SOCKAF(so, AF_INET6))
error = ip6_ctloutput(so, sopt);
#endif /* INET6 */
#if defined(INET) && defined(INET6)
else
#endif
#ifdef INET
error = ip_ctloutput(so, sopt);
#endif
return (error);
}
optsize = sopt->sopt_valsize;
if (optsize > SCTP_SOCKET_OPTION_LIMIT) {
SCTP_LTRACE_ERR_RET(so->so_pcb, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOBUFS);
return (ENOBUFS);
}
if (optsize) {
SCTP_MALLOC(optval, void *, optsize, SCTP_M_SOCKOPT);
if (optval == NULL) {
SCTP_LTRACE_ERR_RET(so->so_pcb, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOBUFS);
return (ENOBUFS);
}
error = sooptcopyin(sopt, optval, optsize, optsize);
if (error) {
SCTP_FREE(optval, SCTP_M_SOCKOPT);
goto out;
}
}
#if defined(__FreeBSD__) || defined(_WIN32)
p = (void *)sopt->sopt_td;
#else
p = (void *)sopt->sopt_p;
#endif
if (sopt->sopt_dir == SOPT_SET) {
#if defined(__FreeBSD__)
NET_EPOCH_ENTER(et);
#endif
error = sctp_setopt(so, sopt->sopt_name, optval, optsize, p);
#if defined(__FreeBSD__)
NET_EPOCH_EXIT(et);
#endif
} else if (sopt->sopt_dir == SOPT_GET) {
error = sctp_getopt(so, sopt->sopt_name, optval, &optsize, p);
} else {
SCTP_LTRACE_ERR_RET(so->so_pcb, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
error = EINVAL;
}
if ((error == 0) && (optval != NULL)) {
error = sooptcopyout(sopt, optval, optsize);
SCTP_FREE(optval, SCTP_M_SOCKOPT);
} else if (optval != NULL) {
SCTP_FREE(optval, SCTP_M_SOCKOPT);
}
out:
return (error);
}
#endif
#ifdef INET
#if defined(__Userspace__)
int
sctp_connect(struct socket *so, struct sockaddr *addr)
{
void *p = NULL;
#elif defined(__FreeBSD__)
static int
sctp_connect(struct socket *so, struct sockaddr *addr, struct thread *p)
{
#elif defined(__APPLE__)
static int
sctp_connect(struct socket *so, struct sockaddr *addr, struct proc *p)
{
#elif defined(_WIN32)
static int
sctp_connect(struct socket *so, struct sockaddr *addr, PKTHREAD p)
{
#else
static int
sctp_connect(struct socket *so, struct mbuf *nam, struct proc *p)
{
struct sockaddr *addr = mtod(nam, struct sockaddr *);
#endif
#if defined(__FreeBSD__) && !defined(__Userspace__)
struct epoch_tracker et;
#endif
#ifdef SCTP_MVRF
int i, fnd = 0;
#endif
int error = 0;
int create_lock_on = 0;
uint32_t vrf_id;
struct sctp_inpcb *inp;
struct sctp_tcb *stcb = NULL;
inp = (struct sctp_inpcb *)so->so_pcb;
if (inp == NULL) {
/* I made the same as TCP since we are not setup? */
SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
return (ECONNRESET);
}
if (addr == NULL) {
SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
return EINVAL;
}
#if defined(__Userspace__)
/* TODO __Userspace__ falls into this code for IPv6 stuff at the moment... */
#endif
#if !defined(_WIN32) && !defined(__linux__) && !defined(__EMSCRIPTEN__)
switch (addr->sa_family) {
#ifdef INET6
case AF_INET6:
{
#if defined(__FreeBSD__) && !defined(__Userspace__)
struct sockaddr_in6 *sin6;
#endif
if (addr->sa_len != sizeof(struct sockaddr_in6)) {
SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
return (EINVAL);
}
#if defined(__FreeBSD__) && !defined(__Userspace__)
sin6 = (struct sockaddr_in6 *)addr;
if (p != NULL && (error = prison_remote_ip6(p->td_ucred, &sin6->sin6_addr)) != 0) {
SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
return (error);
}
#endif
break;
}
#endif
#ifdef INET
case AF_INET:
{
#if defined(__FreeBSD__) && !defined(__Userspace__)
struct sockaddr_in *sin;
#endif
#if !defined(_WIN32)
if (addr->sa_len != sizeof(struct sockaddr_in)) {
SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
return (EINVAL);
}
#endif
#if defined(__FreeBSD__) && !defined(__Userspace__)
sin = (struct sockaddr_in *)addr;
if (p != NULL && (error = prison_remote_ip4(p->td_ucred, &sin->sin_addr)) != 0) {
SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
return (error);
}
#endif
break;
}
#endif
default:
SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EAFNOSUPPORT);
return (EAFNOSUPPORT);
}
#endif
SCTP_INP_INCR_REF(inp);
SCTP_ASOC_CREATE_LOCK(inp);
create_lock_on = 1;
#if defined(__FreeBSD__) && !defined(__Userspace__)
NET_EPOCH_ENTER(et);
#endif
if ((inp->sctp_flags & SCTP_PCB_FLAGS_SOCKET_ALLGONE) ||
(inp->sctp_flags & SCTP_PCB_FLAGS_SOCKET_GONE)) {
/* Should I really unlock ? */
SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EFAULT);
error = EFAULT;
goto out_now;
}
#ifdef INET6
if (((inp->sctp_flags & SCTP_PCB_FLAGS_BOUND_V6) == 0) &&
(addr->sa_family == AF_INET6)) {
SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
error = EINVAL;
goto out_now;
}
#endif
#if defined(__Userspace__)
if ((inp->sctp_flags & SCTP_PCB_FLAGS_BOUND_CONN) &&
(addr->sa_family != AF_CONN)) {
SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
error = EINVAL;
goto out_now;
}
#endif
if ((inp->sctp_flags & SCTP_PCB_FLAGS_UNBOUND) ==
SCTP_PCB_FLAGS_UNBOUND) {
/* Bind a ephemeral port */
error = sctp_inpcb_bind(so, NULL, NULL, p);
if (error) {
goto out_now;
}
}
/* Now do we connect? */
if ((inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) &&
(sctp_is_feature_off(inp, SCTP_PCB_FLAGS_PORTREUSE))) {
SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
error = EINVAL;
goto out_now;
}
if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) &&
(inp->sctp_flags & SCTP_PCB_FLAGS_CONNECTED)) {
/* We are already connected AND the TCP model */
SCTP_LTRACE_ERR_RET(inp, stcb, NULL, SCTP_FROM_SCTP_USRREQ, EADDRINUSE);
error = EADDRINUSE;
goto out_now;
}
if (inp->sctp_flags & SCTP_PCB_FLAGS_CONNECTED) {
SCTP_INP_RLOCK(inp);
stcb = LIST_FIRST(&inp->sctp_asoc_list);
SCTP_INP_RUNLOCK(inp);
} else {
/* We increment here since sctp_findassociation_ep_addr() will
* do a decrement if it finds the stcb as long as the locked
* tcb (last argument) is NOT a TCB.. aka NULL.
*/
SCTP_INP_INCR_REF(inp);
stcb = sctp_findassociation_ep_addr(&inp, addr, NULL, NULL, NULL);
if (stcb == NULL) {
SCTP_INP_DECR_REF(inp);
} else {
SCTP_TCB_UNLOCK(stcb);
}
}
if (stcb != NULL) {
/* Already have or am bring up an association */
SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EALREADY);
error = EALREADY;
goto out_now;
}
vrf_id = inp->def_vrf_id;
#ifdef SCTP_MVRF
for (i = 0; i < inp->num_vrfs; i++) {
if (vrf_id == inp->m_vrf_ids[i]) {
fnd = 1;
break;
}
}
if (!fnd) {
SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
error = EINVAL;
goto out_now;
}
#endif
/* We are GOOD to go */
stcb = sctp_aloc_assoc(inp, addr, &error, 0, vrf_id,
inp->sctp_ep.pre_open_stream_count,
inp->sctp_ep.port, p,
SCTP_INITIALIZE_AUTH_PARAMS);
if (stcb == NULL) {
/* Gak! no memory */
goto out_now;
}
if (stcb->sctp_ep->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) {
stcb->sctp_ep->sctp_flags |= SCTP_PCB_FLAGS_CONNECTED;
/* Set the connected flag so we can queue data */
soisconnecting(so);
}
SCTP_SET_STATE(stcb, SCTP_STATE_COOKIE_WAIT);
(void)SCTP_GETTIME_TIMEVAL(&stcb->asoc.time_entered);
sctp_send_initiate(inp, stcb, SCTP_SO_LOCKED);
SCTP_TCB_UNLOCK(stcb);
out_now:
#if defined(__FreeBSD__) && !defined(__Userspace__)
NET_EPOCH_EXIT(et);
#endif
if (create_lock_on) {
SCTP_ASOC_CREATE_UNLOCK(inp);
}
SCTP_INP_DECR_REF(inp);
return (error);
}
#endif
#if defined(__Userspace__)
int
sctpconn_connect(struct socket *so, struct sockaddr *addr)
{
#ifdef SCTP_MVRF
int i, fnd = 0;
#endif
void *p = NULL;
int error = 0;
int create_lock_on = 0;
uint32_t vrf_id;
struct sctp_inpcb *inp;
struct sctp_tcb *stcb = NULL;
inp = (struct sctp_inpcb *)so->so_pcb;
if (inp == NULL) {
/* I made the same as TCP since we are not setup? */
SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
return (ECONNRESET);
}
if (addr == NULL) {
SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
return EINVAL;
}
switch (addr->sa_family) {
#ifdef INET
case AF_INET:
#ifdef HAVE_SA_LEN
if (addr->sa_len != sizeof(struct sockaddr_in)) {
SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
return (EINVAL);
}
#endif
break;
#endif
#ifdef INET6
case AF_INET6:
#ifdef HAVE_SA_LEN
if (addr->sa_len != sizeof(struct sockaddr_in6)) {
SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
return (EINVAL);
}
#endif
break;
#endif
case AF_CONN:
#ifdef HAVE_SA_LEN
if (addr->sa_len != sizeof(struct sockaddr_conn)) {
SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
return (EINVAL);
}
#endif
break;
default:
SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EAFNOSUPPORT);
return (EAFNOSUPPORT);
}
SCTP_INP_INCR_REF(inp);
SCTP_ASOC_CREATE_LOCK(inp);
create_lock_on = 1;
if ((inp->sctp_flags & SCTP_PCB_FLAGS_SOCKET_ALLGONE) ||
(inp->sctp_flags & SCTP_PCB_FLAGS_SOCKET_GONE)) {
/* Should I really unlock ? */
SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EFAULT);
error = EFAULT;
goto out_now;
}
#ifdef INET6
if (((inp->sctp_flags & SCTP_PCB_FLAGS_BOUND_V6) == 0) &&
(addr->sa_family == AF_INET6)) {
SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
error = EINVAL;
goto out_now;
}
#endif
if ((inp->sctp_flags & SCTP_PCB_FLAGS_UNBOUND) == SCTP_PCB_FLAGS_UNBOUND) {
/* Bind a ephemeral port */
error = sctp_inpcb_bind(so, NULL, NULL, p);
if (error) {
goto out_now;
}
}
/* Now do we connect? */
if ((inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) &&
(sctp_is_feature_off(inp, SCTP_PCB_FLAGS_PORTREUSE))) {
SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
error = EINVAL;
goto out_now;
}
if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) &&
(inp->sctp_flags & SCTP_PCB_FLAGS_CONNECTED)) {
/* We are already connected AND the TCP model */
SCTP_LTRACE_ERR_RET(inp, stcb, NULL, SCTP_FROM_SCTP_USRREQ, EADDRINUSE);
error = EADDRINUSE;
goto out_now;
}
if (inp->sctp_flags & SCTP_PCB_FLAGS_CONNECTED) {
SCTP_INP_RLOCK(inp);
stcb = LIST_FIRST(&inp->sctp_asoc_list);
SCTP_INP_RUNLOCK(inp);
} else {
/* We increment here since sctp_findassociation_ep_addr() will
* do a decrement if it finds the stcb as long as the locked
* tcb (last argument) is NOT a TCB.. aka NULL.
*/
SCTP_INP_INCR_REF(inp);
stcb = sctp_findassociation_ep_addr(&inp, addr, NULL, NULL, NULL);
if (stcb == NULL) {
SCTP_INP_DECR_REF(inp);
} else {
SCTP_TCB_UNLOCK(stcb);
}
}
if (stcb != NULL) {
/* Already have or am bring up an association */
SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EALREADY);
error = EALREADY;
goto out_now;
}
vrf_id = inp->def_vrf_id;
#ifdef SCTP_MVRF
for (i = 0; i < inp->num_vrfs; i++) {
if (vrf_id == inp->m_vrf_ids[i]) {
fnd = 1;
break;
}
}
if (!fnd) {
SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
error = EINVAL;
goto out_now;
}
#endif
/* We are GOOD to go */
stcb = sctp_aloc_assoc(inp, addr, &error, 0, vrf_id,
inp->sctp_ep.pre_open_stream_count,
inp->sctp_ep.port, p,
SCTP_INITIALIZE_AUTH_PARAMS);
if (stcb == NULL) {
/* Gak! no memory */
goto out_now;
}
if (stcb->sctp_ep->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) {
stcb->sctp_ep->sctp_flags |= SCTP_PCB_FLAGS_CONNECTED;
/* Set the connected flag so we can queue data */
soisconnecting(so);
}
SCTP_SET_STATE(stcb, SCTP_STATE_COOKIE_WAIT);
(void)SCTP_GETTIME_TIMEVAL(&stcb->asoc.time_entered);
sctp_send_initiate(inp, stcb, SCTP_SO_LOCKED);
SCTP_TCB_UNLOCK(stcb);
out_now:
if (create_lock_on) {
SCTP_ASOC_CREATE_UNLOCK(inp);
}
SCTP_INP_DECR_REF(inp);
return (error);
}
#endif
int
#if defined(__Userspace__)
sctp_listen(struct socket *so, int backlog, struct proc *p)
#elif defined(__FreeBSD__)
sctp_listen(struct socket *so, int backlog, struct thread *p)
#elif defined(_WIN32)
sctp_listen(struct socket *so, int backlog, PKTHREAD p)
#else
sctp_listen(struct socket *so, struct proc *p)
#endif
{
/*
* Note this module depends on the protocol processing being called
* AFTER any socket level flags and backlog are applied to the
* socket. The traditional way that the socket flags are applied is
* AFTER protocol processing. We have made a change to the
* sys/kern/uipc_socket.c module to reverse this but this MUST be in
* place if the socket API for SCTP is to work properly.
*/
int error = 0;
struct sctp_inpcb *inp;
inp = (struct sctp_inpcb *)so->so_pcb;
if (inp == NULL) {
/* I made the same as TCP since we are not setup? */
SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
return (ECONNRESET);
}
if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_PORTREUSE)) {
/* See if we have a listener */
struct sctp_inpcb *tinp;
union sctp_sockstore store;
if ((inp->sctp_flags & SCTP_PCB_FLAGS_BOUNDALL) == 0) {
/* not bound all */
struct sctp_laddr *laddr;
LIST_FOREACH(laddr, &inp->sctp_addr_list, sctp_nxt_addr) {
memcpy(&store, &laddr->ifa->address, sizeof(store));
switch (store.sa.sa_family) {
#ifdef INET
case AF_INET:
store.sin.sin_port = inp->sctp_lport;
break;
#endif
#ifdef INET6
case AF_INET6:
store.sin6.sin6_port = inp->sctp_lport;
break;
#endif
#if defined(__Userspace__)
case AF_CONN:
store.sconn.sconn_port = inp->sctp_lport;
break;
#endif
default:
break;
}
tinp = sctp_pcb_findep(&store.sa, 0, 0, inp->def_vrf_id);
if (tinp && (tinp != inp) &&
((tinp->sctp_flags & SCTP_PCB_FLAGS_SOCKET_ALLGONE) == 0) &&
((tinp->sctp_flags & SCTP_PCB_FLAGS_SOCKET_GONE) == 0) &&
(SCTP_IS_LISTENING(tinp))) {
/* we have a listener already and its not this inp. */
SCTP_INP_DECR_REF(tinp);
return (EADDRINUSE);
} else if (tinp) {
SCTP_INP_DECR_REF(tinp);
}
}
} else {
/* Setup a local addr bound all */
memset(&store, 0, sizeof(store));
#ifdef INET6
if (inp->sctp_flags & SCTP_PCB_FLAGS_BOUND_V6) {
store.sa.sa_family = AF_INET6;
#ifdef HAVE_SA_LEN
store.sa.sa_len = sizeof(struct sockaddr_in6);
#endif
}
#endif
#if defined(__Userspace__)
if (inp->sctp_flags & SCTP_PCB_FLAGS_BOUND_CONN) {
store.sa.sa_family = AF_CONN;
#ifdef HAVE_SA_LEN
store.sa.sa_len = sizeof(struct sockaddr_conn);
#endif
}
#endif
#ifdef INET
#if defined(__Userspace__)
if (((inp->sctp_flags & SCTP_PCB_FLAGS_BOUND_V6) == 0) &&
((inp->sctp_flags & SCTP_PCB_FLAGS_BOUND_CONN) == 0)) {
#else
if ((inp->sctp_flags & SCTP_PCB_FLAGS_BOUND_V6) == 0) {
#endif
store.sa.sa_family = AF_INET;
#ifdef HAVE_SA_LEN
store.sa.sa_len = sizeof(struct sockaddr_in);
#endif
}
#endif
switch (store.sa.sa_family) {
#ifdef INET
case AF_INET:
store.sin.sin_port = inp->sctp_lport;
break;
#endif
#ifdef INET6
case AF_INET6:
store.sin6.sin6_port = inp->sctp_lport;
break;
#endif
#if defined(__Userspace__)
case AF_CONN:
store.sconn.sconn_port = inp->sctp_lport;
break;
#endif
default:
break;
}
tinp = sctp_pcb_findep(&store.sa, 0, 0, inp->def_vrf_id);
if (tinp && (tinp != inp) &&
((tinp->sctp_flags & SCTP_PCB_FLAGS_SOCKET_ALLGONE) == 0) &&
((tinp->sctp_flags & SCTP_PCB_FLAGS_SOCKET_GONE) == 0) &&
(SCTP_IS_LISTENING(tinp))) {
/* we have a listener already and its not this inp. */
SCTP_INP_DECR_REF(tinp);
return (EADDRINUSE);
} else if (tinp) {
SCTP_INP_DECR_REF(tinp);
}
}
}
SCTP_INP_RLOCK(inp);
#ifdef SCTP_LOCK_LOGGING
if (SCTP_BASE_SYSCTL(sctp_logging_level) & SCTP_LOCK_LOGGING_ENABLE) {
sctp_log_lock(inp, (struct sctp_tcb *)NULL, SCTP_LOG_LOCK_SOCK);
}
#endif
#if defined(__FreeBSD__) || defined(__Userspace__)
SOCK_LOCK(so);
error = solisten_proto_check(so);
SOCK_UNLOCK(so);
if (error) {
SCTP_INP_RUNLOCK(inp);
return (error);
}
#endif
if ((sctp_is_feature_on(inp, SCTP_PCB_FLAGS_PORTREUSE)) &&
(inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL)) {
/* The unlucky case
* - We are in the tcp pool with this guy.
* - Someone else is in the main inp slot.
* - We must move this guy (the listener) to the main slot
* - We must then move the guy that was listener to the TCP Pool.
*/
if (sctp_swap_inpcb_for_listen(inp)) {
SCTP_INP_RUNLOCK(inp);
SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EADDRINUSE);
return (EADDRINUSE);
}
}
if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) &&
(inp->sctp_flags & SCTP_PCB_FLAGS_CONNECTED)) {
/* We are already connected AND the TCP model */
SCTP_INP_RUNLOCK(inp);
SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EADDRINUSE);
return (EADDRINUSE);
}
SCTP_INP_RUNLOCK(inp);
if (inp->sctp_flags & SCTP_PCB_FLAGS_UNBOUND) {
/* We must do a bind. */
if ((error = sctp_inpcb_bind(so, NULL, NULL, p))) {
/* bind error, probably perm */
return (error);
}
}
SCTP_INP_WLOCK(inp);
#if defined(__FreeBSD__) && !defined(__Userspace__)
if ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) == 0) {
SOCK_LOCK(so);
solisten_proto(so, backlog);
SOCK_UNLOCK(so);
}
#elif defined(_WIN32) || defined(__Userspace__)
SOCK_LOCK(so);
solisten_proto(so, backlog);
#endif
#if !(defined(__FreeBSD__) && !defined(__Userspace__))
if (inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) {
/* remove the ACCEPTCONN flag for one-to-many sockets */
#if defined(__Userspace__)
so->so_options &= ~SCTP_SO_ACCEPTCONN;
#else
so->so_options &= ~SO_ACCEPTCONN;
#endif
}
SOCK_UNLOCK(so);
#endif
#if defined(__FreeBSD__) || defined(_WIN32) || defined(__Userspace__)
if (backlog > 0) {
inp->sctp_flags |= SCTP_PCB_FLAGS_ACCEPTING;
} else {
inp->sctp_flags &= ~SCTP_PCB_FLAGS_ACCEPTING;
}
#else
inp->sctp_flags |= SCTP_PCB_FLAGS_ACCEPTING;
#endif
SCTP_INP_WUNLOCK(inp);
return (error);
}
static int sctp_defered_wakeup_cnt = 0;
int
sctp_accept(struct socket *so, struct sockaddr **addr)
{
struct sctp_tcb *stcb;
struct sctp_inpcb *inp;
union sctp_sockstore store;
#ifdef INET6
#if defined(SCTP_KAME) && defined(SCTP_EMBEDDED_V6_SCOPE)
int error;
#endif
#endif
inp = (struct sctp_inpcb *)so->so_pcb;
if (inp == NULL) {
SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
return (ECONNRESET);
}
SCTP_INP_WLOCK(inp);
if (inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) {
SCTP_INP_WUNLOCK(inp);
SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EOPNOTSUPP);
return (EOPNOTSUPP);
}
if (so->so_state & SS_ISDISCONNECTED) {
SCTP_INP_WUNLOCK(inp);
SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ECONNABORTED);
return (ECONNABORTED);
}
stcb = LIST_FIRST(&inp->sctp_asoc_list);
if (stcb == NULL) {
SCTP_INP_WUNLOCK(inp);
SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
return (ECONNRESET);
}
SCTP_TCB_LOCK(stcb);
store = stcb->asoc.primary_destination->ro._l_addr;
SCTP_CLEAR_SUBSTATE(stcb, SCTP_STATE_IN_ACCEPT_QUEUE);
/* Wake any delayed sleep action */
if (inp->sctp_flags & SCTP_PCB_FLAGS_DONT_WAKE) {
inp->sctp_flags &= ~SCTP_PCB_FLAGS_DONT_WAKE;
if (inp->sctp_flags & SCTP_PCB_FLAGS_WAKEOUTPUT) {
inp->sctp_flags &= ~SCTP_PCB_FLAGS_WAKEOUTPUT;
SOCKBUF_LOCK(&inp->sctp_socket->so_snd);
if (sowriteable(inp->sctp_socket)) {
#if defined(__Userspace__)
/*__Userspace__ calling sowwakup_locked because of SOCKBUF_LOCK above. */
#endif
#if defined(__FreeBSD__) || defined(_WIN32) || defined(__Userspace__)
sowwakeup_locked(inp->sctp_socket);
#else
#if defined(__APPLE__)
/* socket is locked */
#endif
sowwakeup(inp->sctp_socket);
#endif
} else {
SOCKBUF_UNLOCK(&inp->sctp_socket->so_snd);
}
}
if (inp->sctp_flags & SCTP_PCB_FLAGS_WAKEINPUT) {
inp->sctp_flags &= ~SCTP_PCB_FLAGS_WAKEINPUT;
SOCKBUF_LOCK(&inp->sctp_socket->so_rcv);
if (soreadable(inp->sctp_socket)) {
sctp_defered_wakeup_cnt++;
#if defined(__Userspace__)
/*__Userspace__ calling sorwakup_locked because of SOCKBUF_LOCK above */
#endif
#if defined(__FreeBSD__) || defined(_WIN32) || defined(__Userspace__)
sorwakeup_locked(inp->sctp_socket);
#else
#if defined(__APPLE__)
/* socket is locked */
#endif
sorwakeup(inp->sctp_socket);
#endif
} else {
SOCKBUF_UNLOCK(&inp->sctp_socket->so_rcv);
}
}
}
SCTP_INP_WUNLOCK(inp);
if (stcb->asoc.state & SCTP_STATE_ABOUT_TO_BE_FREED) {
sctp_free_assoc(inp, stcb, SCTP_NORMAL_PROC,
SCTP_FROM_SCTP_USRREQ + SCTP_LOC_19);
} else {
SCTP_TCB_UNLOCK(stcb);
}
switch (store.sa.sa_family) {
#ifdef INET
case AF_INET:
{
struct sockaddr_in *sin;
SCTP_MALLOC_SONAME(sin, struct sockaddr_in *, sizeof *sin);
if (sin == NULL)
return (ENOMEM);
sin->sin_family = AF_INET;
#ifdef HAVE_SIN_LEN
sin->sin_len = sizeof(*sin);
#endif
sin->sin_port = store.sin.sin_port;
sin->sin_addr = store.sin.sin_addr;
*addr = (struct sockaddr *)sin;
break;
}
#endif
#ifdef INET6
case AF_INET6:
{
struct sockaddr_in6 *sin6;
SCTP_MALLOC_SONAME(sin6, struct sockaddr_in6 *, sizeof *sin6);
if (sin6 == NULL)
return (ENOMEM);
sin6->sin6_family = AF_INET6;
#ifdef HAVE_SIN6_LEN
sin6->sin6_len = sizeof(*sin6);
#endif
sin6->sin6_port = store.sin6.sin6_port;
sin6->sin6_addr = store.sin6.sin6_addr;
#if defined(SCTP_EMBEDDED_V6_SCOPE)
#ifdef SCTP_KAME
if ((error = sa6_recoverscope(sin6)) != 0) {
SCTP_FREE_SONAME(sin6);
return (error);
}
#else
if (IN6_IS_SCOPE_LINKLOCAL(&sin6->sin6_addr))
/*
* sin6->sin6_scope_id =
* ntohs(sin6->sin6_addr.s6_addr16[1]);
*/
in6_recoverscope(sin6, &sin6->sin6_addr, NULL); /* skip ifp check */
else
sin6->sin6_scope_id = 0; /* XXX */
#endif /* SCTP_KAME */
#endif /* SCTP_EMBEDDED_V6_SCOPE */
*addr = (struct sockaddr *)sin6;
break;
}
#endif
#if defined(__Userspace__)
case AF_CONN:
{
struct sockaddr_conn *sconn;
SCTP_MALLOC_SONAME(sconn, struct sockaddr_conn *, sizeof(struct sockaddr_conn));
if (sconn == NULL) {
return (ENOMEM);
}
sconn->sconn_family = AF_CONN;
#ifdef HAVE_SCONN_LEN
sconn->sconn_len = sizeof(struct sockaddr_conn);
#endif
sconn->sconn_port = store.sconn.sconn_port;
sconn->sconn_addr = store.sconn.sconn_addr;
*addr = (struct sockaddr *)sconn;
break;
}
#endif
default:
/* TSNH */
break;
}
return (0);
}
#ifdef INET
int
#if !defined(__Userspace__)
sctp_ingetaddr(struct socket *so, struct sockaddr **addr)
{
struct sockaddr_in *sin;
#else
sctp_ingetaddr(struct socket *so, struct mbuf *nam)
{
struct sockaddr_in *sin = mtod(nam, struct sockaddr_in *);
#endif
uint32_t vrf_id;
struct sctp_inpcb *inp;
struct sctp_ifa *sctp_ifa;
/*
* Do the malloc first in case it blocks.
*/
#if !defined(__Userspace__)
SCTP_MALLOC_SONAME(sin, struct sockaddr_in *, sizeof *sin);
if (sin == NULL)
return (ENOMEM);
#else
SCTP_BUF_LEN(nam) = sizeof(*sin);
memset(sin, 0, sizeof(*sin));
#endif
sin->sin_family = AF_INET;
#ifdef HAVE_SIN_LEN
sin->sin_len = sizeof(*sin);
#endif
inp = (struct sctp_inpcb *)so->so_pcb;
if (!inp) {
#if !defined(__Userspace__)
SCTP_FREE_SONAME(sin);
#endif
SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
return (ECONNRESET);
}
SCTP_INP_RLOCK(inp);
sin->sin_port = inp->sctp_lport;
if (inp->sctp_flags & SCTP_PCB_FLAGS_BOUNDALL) {
if (inp->sctp_flags & SCTP_PCB_FLAGS_CONNECTED) {
struct sctp_tcb *stcb;
struct sockaddr_in *sin_a;
struct sctp_nets *net;
int fnd;
stcb = LIST_FIRST(&inp->sctp_asoc_list);
if (stcb == NULL) {
goto notConn;
}
fnd = 0;
sin_a = NULL;
SCTP_TCB_LOCK(stcb);
TAILQ_FOREACH(net, &stcb->asoc.nets, sctp_next) {
sin_a = (struct sockaddr_in *)&net->ro._l_addr;
if (sin_a == NULL)
/* this will make coverity happy */
continue;
if (sin_a->sin_family == AF_INET) {
fnd = 1;
break;
}
}
if ((!fnd) || (sin_a == NULL)) {
/* punt */
SCTP_TCB_UNLOCK(stcb);
goto notConn;
}
vrf_id = inp->def_vrf_id;
sctp_ifa = sctp_source_address_selection(inp,
stcb,
(sctp_route_t *)&net->ro,
net, 0, vrf_id);
if (sctp_ifa) {
sin->sin_addr = sctp_ifa->address.sin.sin_addr;
sctp_free_ifa(sctp_ifa);
}
SCTP_TCB_UNLOCK(stcb);
} else {
/* For the bound all case you get back 0 */
notConn:
sin->sin_addr.s_addr = 0;
}
} else {
/* Take the first IPv4 address in the list */
struct sctp_laddr *laddr;
int fnd = 0;
LIST_FOREACH(laddr, &inp->sctp_addr_list, sctp_nxt_addr) {
if (laddr->ifa->address.sa.sa_family == AF_INET) {
struct sockaddr_in *sin_a;
sin_a = &laddr->ifa->address.sin;
sin->sin_addr = sin_a->sin_addr;
fnd = 1;
break;
}
}
if (!fnd) {
#if !defined(__Userspace__)
SCTP_FREE_SONAME(sin);
#endif
SCTP_INP_RUNLOCK(inp);
SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOENT);
return (ENOENT);
}
}
SCTP_INP_RUNLOCK(inp);
#if !defined(__Userspace__)
(*addr) = (struct sockaddr *)sin;
#endif
return (0);
}
int
#if !defined(__Userspace__)
sctp_peeraddr(struct socket *so, struct sockaddr **addr)
{
struct sockaddr_in *sin;
#else
sctp_peeraddr(struct socket *so, struct mbuf *nam)
{
struct sockaddr_in *sin = mtod(nam, struct sockaddr_in *);
#endif
int fnd;
struct sockaddr_in *sin_a;
struct sctp_inpcb *inp;
struct sctp_tcb *stcb;
struct sctp_nets *net;
/* Do the malloc first in case it blocks. */
#if !defined(__Userspace__)
SCTP_MALLOC_SONAME(sin, struct sockaddr_in *, sizeof *sin);
if (sin == NULL)
return (ENOMEM);
#else
SCTP_BUF_LEN(nam) = sizeof(*sin);
memset(sin, 0, sizeof(*sin));
#endif
sin->sin_family = AF_INET;
#ifdef HAVE_SIN_LEN
sin->sin_len = sizeof(*sin);
#endif
inp = (struct sctp_inpcb *)so->so_pcb;
if ((inp == NULL) ||
((inp->sctp_flags & SCTP_PCB_FLAGS_CONNECTED) == 0)) {
/* UDP type and listeners will drop out here */
#if !defined(__Userspace__)
SCTP_FREE_SONAME(sin);
#endif
SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOTCONN);
return (ENOTCONN);
}
SCTP_INP_RLOCK(inp);
stcb = LIST_FIRST(&inp->sctp_asoc_list);
if (stcb) {
SCTP_TCB_LOCK(stcb);
}
SCTP_INP_RUNLOCK(inp);
if (stcb == NULL) {
#if !defined(__Userspace__)
SCTP_FREE_SONAME(sin);
#endif
SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
return (ECONNRESET);
}
fnd = 0;
TAILQ_FOREACH(net, &stcb->asoc.nets, sctp_next) {
sin_a = (struct sockaddr_in *)&net->ro._l_addr;
if (sin_a->sin_family == AF_INET) {
fnd = 1;
sin->sin_port = stcb->rport;
sin->sin_addr = sin_a->sin_addr;
break;
}
}
SCTP_TCB_UNLOCK(stcb);
if (!fnd) {
/* No IPv4 address */
#if !defined(__Userspace__)
SCTP_FREE_SONAME(sin);
#endif
SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOENT);
return (ENOENT);
}
#if !defined(__Userspace__)
(*addr) = (struct sockaddr *)sin;
#endif
return (0);
}
#if !defined(__Userspace__)
struct pr_usrreqs sctp_usrreqs = {
#if defined(__FreeBSD__)
.pru_abort = sctp_abort,
.pru_accept = sctp_accept,
.pru_attach = sctp_attach,
.pru_bind = sctp_bind,
.pru_connect = sctp_connect,
.pru_control = in_control,
.pru_close = sctp_close,
.pru_detach = sctp_close,
.pru_sopoll = sopoll_generic,
.pru_flush = sctp_flush,
.pru_disconnect = sctp_disconnect,
.pru_listen = sctp_listen,
.pru_peeraddr = sctp_peeraddr,
.pru_send = sctp_sendm,
.pru_shutdown = sctp_shutdown,
.pru_sockaddr = sctp_ingetaddr,
.pru_sosend = sctp_sosend,
.pru_soreceive = sctp_soreceive
#elif defined(__APPLE__)
.pru_abort = sctp_abort,
.pru_accept = sctp_accept,
.pru_attach = sctp_attach,
.pru_bind = sctp_bind,
.pru_connect = sctp_connect,
.pru_connect2 = pru_connect2_notsupp,
.pru_control = in_control,
.pru_detach = sctp_detach,
.pru_disconnect = sctp_disconnect,
.pru_listen = sctp_listen,
.pru_peeraddr = sctp_peeraddr,
.pru_rcvd = NULL,
.pru_rcvoob = pru_rcvoob_notsupp,
.pru_send = sctp_sendm,
.pru_sense = pru_sense_null,
.pru_shutdown = sctp_shutdown,
.pru_sockaddr = sctp_ingetaddr,
.pru_sosend = sctp_sosend,
.pru_soreceive = sctp_soreceive,
.pru_sopoll = sopoll
#elif defined(_WIN32) && !defined(__Userspace__)
sctp_abort,
sctp_accept,
sctp_attach,
sctp_bind,
sctp_connect,
pru_connect2_notsupp,
NULL,
NULL,
sctp_disconnect,
sctp_listen,
sctp_peeraddr,
NULL,
pru_rcvoob_notsupp,
NULL,
pru_sense_null,
sctp_shutdown,
sctp_flush,
sctp_ingetaddr,
sctp_sosend,
sctp_soreceive,
sopoll_generic,
NULL,
sctp_close
#endif
};
#elif !defined(__Userspace__)
int
sctp_usrreq(so, req, m, nam, control)
struct socket *so;
int req;
struct mbuf *m, *nam, *control;
{
struct proc *p = curproc;
int error;
int family;
struct sctp_inpcb *inp = (struct sctp_inpcb *)so->so_pcb;
error = 0;
family = so->so_proto->pr_domain->dom_family;
if (req == PRU_CONTROL) {
switch (family) {
case PF_INET:
error = in_control(so, (long)m, (caddr_t)nam,
(struct ifnet *)control);
break;
#ifdef INET6
case PF_INET6:
error = in6_control(so, (long)m, (caddr_t)nam,
(struct ifnet *)control, p);
break;
#endif
default:
SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EAFNOSUPPORT);
error = EAFNOSUPPORT;
}
return (error);
}
switch (req) {
case PRU_ATTACH:
error = sctp_attach(so, family, p);
break;
case PRU_DETACH:
error = sctp_detach(so);
break;
case PRU_BIND:
if (nam == NULL) {
SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
return (EINVAL);
}
error = sctp_bind(so, nam, p);
break;
case PRU_LISTEN:
error = sctp_listen(so, p);
break;
case PRU_CONNECT:
if (nam == NULL) {
SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
return (EINVAL);
}
error = sctp_connect(so, nam, p);
break;
case PRU_DISCONNECT:
error = sctp_disconnect(so);
break;
case PRU_ACCEPT:
if (nam == NULL) {
SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
return (EINVAL);
}
error = sctp_accept(so, nam);
break;
case PRU_SHUTDOWN:
error = sctp_shutdown(so);
break;
case PRU_RCVD:
/*
* For Open and Net BSD, this is real ugly. The mbuf *nam
* that is passed (by soreceive()) is the int flags c ast as
* a (mbuf *) yuck!
*/
break;
case PRU_SEND:
/* Flags are ignored */
{
struct sockaddr *addr;
if (nam == NULL)
addr = NULL;
else
addr = mtod(nam, struct sockaddr *);
error = sctp_sendm(so, 0, m, addr, control, p);
}
break;
case PRU_ABORT:
error = sctp_abort(so);
break;
case PRU_SENSE:
error = 0;
break;
case PRU_RCVOOB:
SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EAFNOSUPPORT);
error = EAFNOSUPPORT;
break;
case PRU_SENDOOB:
SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EAFNOSUPPORT);
error = EAFNOSUPPORT;
break;
case PRU_PEERADDR:
error = sctp_peeraddr(so, nam);
break;
case PRU_SOCKADDR:
error = sctp_ingetaddr(so, nam);
break;
case PRU_SLOWTIMO:
error = 0;
break;
default:
break;
}
return (error);
}
#endif
#endif
#if defined(__Userspace__)
int
register_recv_cb(struct socket *so,
int (*receive_cb)(struct socket *sock, union sctp_sockstore addr, void *data,
size_t datalen, struct sctp_rcvinfo, int flags, void *ulp_info))
{
struct sctp_inpcb *inp;
inp = (struct sctp_inpcb *) so->so_pcb;
if (inp == NULL) {
return (0);
}
SCTP_INP_WLOCK(inp);
inp->recv_callback = receive_cb;
SCTP_INP_WUNLOCK(inp);
return (1);
}
int
register_send_cb(struct socket *so, uint32_t sb_threshold, int (*send_cb)(struct socket *sock, uint32_t sb_free, void *ulp_info))
{
struct sctp_inpcb *inp;
inp = (struct sctp_inpcb *) so->so_pcb;
if (inp == NULL) {
return (0);
}
SCTP_INP_WLOCK(inp);
inp->send_callback = send_cb;
inp->send_sb_threshold = sb_threshold;
SCTP_INP_WUNLOCK(inp);
/* FIXME change to current amount free. This will be the full buffer
* the first time this is registered but it could be only a portion
* of the send buffer if this is called a second time e.g. if the
* threshold changes.
*/
return (1);
}
int
register_ulp_info (struct socket *so, void *ulp_info)
{
struct sctp_inpcb *inp;
inp = (struct sctp_inpcb *) so->so_pcb;
if (inp == NULL) {
return (0);
}
SCTP_INP_WLOCK(inp);
inp->ulp_info = ulp_info;
SCTP_INP_WUNLOCK(inp);
return (1);
}
int
retrieve_ulp_info (struct socket *so, void **pulp_info)
{
struct sctp_inpcb *inp;
if (pulp_info == NULL) {
return (0);
}
inp = (struct sctp_inpcb *) so->so_pcb;
if (inp == NULL) {
return (0);
}
SCTP_INP_RLOCK(inp);
*pulp_info = inp->ulp_info;
SCTP_INP_RUNLOCK(inp);
return (1);
}
#endif
Server : Apache/2.4.41 (Ubuntu)