From bceabc95c1c85d793200446fa85f1ddc6313ea29 Mon Sep 17 00:00:00 2001 From: Sebastian Huber Date: Wed, 9 Oct 2013 22:42:09 +0200 Subject: Move files to match FreeBSD layout --- freebsd/sys/netinet/sctp_usrreq.c | 4918 +++++++++++++++++++++++++++++++++++++ 1 file changed, 4918 insertions(+) create mode 100644 freebsd/sys/netinet/sctp_usrreq.c (limited to 'freebsd/sys/netinet/sctp_usrreq.c') diff --git a/freebsd/sys/netinet/sctp_usrreq.c b/freebsd/sys/netinet/sctp_usrreq.c new file mode 100644 index 00000000..bb60795c --- /dev/null +++ b/freebsd/sys/netinet/sctp_usrreq.c @@ -0,0 +1,4918 @@ +#include + +/*- + * Copyright (c) 2001-2008, by Cisco Systems, Inc. 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. + */ + +/* $KAME: sctp_usrreq.c,v 1.48 2005/03/07 23:26:08 itojun Exp $ */ + +#include +__FBSDID("$FreeBSD$"); +#include +#include +#include +#include +#include +#if defined(INET6) +#endif +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include + + + + +void +sctp_init(void) +{ + u_long sb_max_adj; + + bzero(&SCTP_BASE_STATS, sizeof(struct sctpstat)); + + /* Initialize and modify the sysctled variables */ + sctp_init_sysctls(); + 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)); + /* + * 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); + + SCTP_BASE_VAR(first_time) = 0; + SCTP_BASE_VAR(sctp_pcb_initialized) = 0; + sctp_pcb_init(); +#if defined(SCTP_PACKET_LOGGING) + SCTP_BASE_VAR(packet_log_writers) = 0; + SCTP_BASE_VAR(packet_log_end) = 0; + bzero(&SCTP_BASE_VAR(packet_log_buffer), SCTP_PACKET_LOG_SIZE); +#endif + + +} + +void +sctp_finish(void) +{ + sctp_pcb_finish(); +} + + + +void +sctp_pathmtu_adjustment(struct sctp_inpcb *inp, + struct sctp_tcb *stcb, + struct sctp_nets *net, + 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; + 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); + } + if (chk->sent != SCTP_DATAGRAM_RESEND) { + sctp_ucount_incr(stcb->asoc.sent_queue_retran_cnt); + } + chk->sent = SCTP_DATAGRAM_RESEND; + 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, + (uintptr_t) chk->whoTo, + chk->rec.data.TSN_seq); + } + /* Clear any time so NO RTT is being done */ + chk->do_rtt = 0; + } + } +} + +static void +sctp_notify_mbuf(struct sctp_inpcb *inp, + struct sctp_tcb *stcb, + struct sctp_nets *net, + struct ip *ip, + struct sctphdr *sh) +{ + struct icmp *icmph; + int totsz, tmr_stopped = 0; + uint16_t nxtsz; + + /* protection */ + if ((inp == NULL) || (stcb == NULL) || (net == NULL) || + (ip == NULL) || (sh == NULL)) { + if (stcb != NULL) { + SCTP_TCB_UNLOCK(stcb); + } + return; + } + /* First job is to verify the vtag matches what I would send */ + if (ntohl(sh->v_tag) != (stcb->asoc.peer_vtag)) { + SCTP_TCB_UNLOCK(stcb); + return; + } + icmph = (struct icmp *)((caddr_t)ip - (sizeof(struct icmp) - + sizeof(struct ip))); + if (icmph->icmp_type != ICMP_UNREACH) { + /* We only care about unreachable */ + SCTP_TCB_UNLOCK(stcb); + return; + } + if (icmph->icmp_code != ICMP_UNREACH_NEEDFRAG) { + /* not a unreachable message due to frag. */ + SCTP_TCB_UNLOCK(stcb); + return; + } + totsz = ip->ip_len; + + nxtsz = ntohs(icmph->icmp_nextmtu); + if (nxtsz == 0) { + /* + * old type router that does not tell us what the next size + * mtu is. Rats we will have to guess (in a educated fashion + * of course) + */ + nxtsz = sctp_get_prev_mtu(totsz); + } + /* Stop any PMTU timer */ + if (SCTP_OS_TIMER_PENDING(&net->pmtu_timer.timer)) { + tmr_stopped = 1; + sctp_timer_stop(SCTP_TIMER_TYPE_PATHMTURAISE, inp, stcb, net, + SCTP_FROM_SCTP_USRREQ + SCTP_LOC_1); + } + /* Adjust destination size limit */ + if (net->mtu > nxtsz) { + net->mtu = nxtsz; + if (net->port) { + net->mtu -= sizeof(struct udphdr); + } + } + /* now what about the ep? */ + if (stcb->asoc.smallest_mtu > nxtsz) { + sctp_pathmtu_adjustment(inp, stcb, net, nxtsz); + } + if (tmr_stopped) + sctp_timer_start(SCTP_TIMER_TYPE_PATHMTURAISE, inp, stcb, net); + + SCTP_TCB_UNLOCK(stcb); +} + + +void +sctp_notify(struct sctp_inpcb *inp, + struct ip *ip, + struct sctphdr *sh, + struct sockaddr *to, + struct sctp_tcb *stcb, + struct sctp_nets *net) +{ +#if defined (__APPLE__) || defined(SCTP_SO_LOCK_TESTING) + struct socket *so; + +#endif + /* protection */ + int reason; + struct icmp *icmph; + + + if ((inp == NULL) || (stcb == NULL) || (net == NULL) || + (sh == NULL) || (to == NULL)) { + if (stcb) + SCTP_TCB_UNLOCK(stcb); + return; + } + /* First job is to verify the vtag matches what I would send */ + if (ntohl(sh->v_tag) != (stcb->asoc.peer_vtag)) { + SCTP_TCB_UNLOCK(stcb); + return; + } + icmph = (struct icmp *)((caddr_t)ip - (sizeof(struct icmp) - + sizeof(struct ip))); + if (icmph->icmp_type != ICMP_UNREACH) { + /* We only care about unreachable */ + SCTP_TCB_UNLOCK(stcb); + return; + } + if ((icmph->icmp_code == ICMP_UNREACH_NET) || + (icmph->icmp_code == ICMP_UNREACH_HOST) || + (icmph->icmp_code == ICMP_UNREACH_NET_UNKNOWN) || + (icmph->icmp_code == ICMP_UNREACH_HOST_UNKNOWN) || + (icmph->icmp_code == ICMP_UNREACH_ISOLATED) || + (icmph->icmp_code == ICMP_UNREACH_NET_PROHIB) || + (icmph->icmp_code == ICMP_UNREACH_HOST_PROHIB) || + (icmph->icmp_code == ICMP_UNREACH_FILTER_PROHIB)) { + + /* + * Hmm reachablity problems we must examine closely. If its + * not reachable, we may have lost a network. Or if there is + * NO protocol at the other end named SCTP. well we consider + * it a OOTB abort. + */ + if (net->dest_state & SCTP_ADDR_REACHABLE) { + /* Ok that destination is NOT reachable */ + SCTP_PRINTF("ICMP (thresh %d/%d) takes interface %p down\n", + net->error_count, + net->failure_threshold, + net); + + net->dest_state &= ~SCTP_ADDR_REACHABLE; + net->dest_state |= SCTP_ADDR_NOT_REACHABLE; + /* + * JRS 5/14/07 - If a destination is unreachable, + * the PF bit is turned off. This allows an + * unambiguous use of the PF bit for destinations + * that are reachable but potentially failed. If the + * destination is set to the unreachable state, also + * set the destination to the PF state. + */ + /* + * Add debug message here if destination is not in + * PF state. + */ + /* Stop any running T3 timers here? */ + if ((stcb->asoc.sctp_cmt_on_off == 1) && + (stcb->asoc.sctp_cmt_pf > 0)) { + net->dest_state &= ~SCTP_ADDR_PF; + SCTPDBG(SCTP_DEBUG_TIMER4, "Destination %p moved from PF to unreachable.\n", + net); + } + net->error_count = net->failure_threshold + 1; + sctp_ulp_notify(SCTP_NOTIFY_INTERFACE_DOWN, + stcb, SCTP_FAILED_THRESHOLD, + (void *)net, SCTP_SO_NOT_LOCKED); + } + SCTP_TCB_UNLOCK(stcb); + } else if ((icmph->icmp_code == ICMP_UNREACH_PROTOCOL) || + (icmph->icmp_code == ICMP_UNREACH_PORT)) { + /* + * Here the peer is either playing tricks on us, including + * an address that belongs to someone who does not support + * SCTP OR was a userland implementation that shutdown and + * now is dead. In either case treat it like a OOTB abort + * with no TCB + */ + reason = SCTP_PEER_FAULTY; + sctp_abort_notification(stcb, reason, SCTP_SO_NOT_LOCKED); +#if defined (__APPLE__) || defined(SCTP_SO_LOCK_TESTING) + 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(SCTP_SO_LOCK_TESTING) + 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 { + SCTP_TCB_UNLOCK(stcb); + } +} + +void +sctp_ctlinput(cmd, sa, vip) + int cmd; + struct sockaddr *sa; + void *vip; +{ + struct ip *ip = vip; + struct sctphdr *sh; + uint32_t vrf_id; + + /* FIX, for non-bsd is this right? */ + vrf_id = SCTP_DEFAULT_VRFID; + if (sa->sa_family != AF_INET || + ((struct sockaddr_in *)sa)->sin_addr.s_addr == INADDR_ANY) { + return; + } + if (PRC_IS_REDIRECT(cmd)) { + ip = 0; + } else if ((unsigned)cmd >= PRC_NCMDS || inetctlerrmap[cmd] == 0) { + return; + } + if (ip) { + struct sctp_inpcb *inp = NULL; + struct sctp_tcb *stcb = NULL; + struct sctp_nets *net = NULL; + struct sockaddr_in to, from; + + sh = (struct sctphdr *)((caddr_t)ip + (ip->ip_hl << 2)); + bzero(&to, sizeof(to)); + bzero(&from, sizeof(from)); + from.sin_family = to.sin_family = AF_INET; + from.sin_len = to.sin_len = sizeof(to); + from.sin_port = sh->src_port; + from.sin_addr = ip->ip_src; + to.sin_port = sh->dest_port; + to.sin_addr = ip->ip_dst; + + /* + * 'to' holds the dest of the packet that failed to be sent. + * 'from' holds our local endpoint address. Thus we reverse + * the to and the from in the lookup. + */ + stcb = sctp_findassociation_addr_sa((struct sockaddr *)&from, + (struct sockaddr *)&to, + &inp, &net, 1, vrf_id); + if (stcb != NULL && inp && (inp->sctp_socket != NULL)) { + if (cmd != PRC_MSGSIZE) { + sctp_notify(inp, ip, sh, + (struct sockaddr *)&to, stcb, + net); + } else { + /* handle possible ICMP size messages */ + sctp_notify_mbuf(inp, stcb, net, ip, sh); + } + } 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; +} + +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[0]), + sintosa(&addrs[1]), + &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, + 0, 0, sctp_getcred, "S,ucred", "Get the ucred of a SCTP connection"); + + +static void +sctp_abort(struct socket *so) +{ + struct sctp_inpcb *inp; + uint32_t flags; + + inp = (struct sctp_inpcb *)so->so_pcb; + if (inp == 0) { + return; + } +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); + + /* Now null out the reference, we are completely detached. */ + so->so_pcb = NULL; + SOCK_UNLOCK(so); + } else { + flags = inp->sctp_flags; + if ((flags & SCTP_PCB_FLAGS_SOCKET_GONE) == 0) { + goto sctp_must_try_again; + } + } + return; +} + +static int +sctp_attach(struct socket *so, int proto, struct thread *p) +{ + struct sctp_inpcb *inp; + struct inpcb *ip_inp; + int error; + uint32_t vrf_id = SCTP_DEFAULT_VRFID; + +#ifdef IPSEC + uint32_t flags; + +#endif + + inp = (struct sctp_inpcb *)so->so_pcb; + if (inp != 0) { + 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); +#ifdef IPSEC + error = ipsec_init_policy(so, &ip_inp->inp_sp); +#ifdef SCTP_LOG_CLOSING + sctp_log_closing(inp, NULL, 17); +#endif + if (error != 0) { +try_again: + flags = inp->sctp_flags; + 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, 15); +#endif + SCTP_INP_WUNLOCK(inp); + sctp_inpcb_free(inp, SCTP_FREE_SHOULD_USE_ABORT, + SCTP_CALLED_AFTER_CMPSET_OFCLOSE); + } else { + flags = inp->sctp_flags; + if ((flags & SCTP_PCB_FLAGS_SOCKET_GONE) == 0) { + goto try_again; + } else { + SCTP_INP_WUNLOCK(inp); + } + } + return error; + } +#endif /* IPSEC */ + SCTP_INP_WUNLOCK(inp); + return 0; +} + +static int +sctp_bind(struct socket *so, struct sockaddr *addr, struct thread *p) +{ + struct sctp_inpcb *inp = NULL; + int error; + +#ifdef INET6 + if (addr && addr->sa_family != AF_INET) { + /* must be a v4 address! */ + SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL); + return EINVAL; + } +#endif /* INET6 */ + if (addr && (addr->sa_len != sizeof(struct sockaddr_in))) { + SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL); + return EINVAL; + } + inp = (struct sctp_inpcb *)so->so_pcb; + if (inp == 0) { + SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL); + return EINVAL; + } + error = sctp_inpcb_bind(so, addr, NULL, p); + return error; +} + +void +sctp_close(struct socket *so) +{ + struct sctp_inpcb *inp; + uint32_t flags; + + inp = (struct sctp_inpcb *)so->so_pcb; + if (inp == 0) + return; + + /* + * Inform all the lower layer assoc that we are done. + */ +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 (((so->so_options & SO_LINGER) && (so->so_linger == 0)) || + (so->so_rcv.sb_cc > 0)) { +#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); + + /* Now null out the reference, we are completely detached. */ + so->so_pcb = NULL; + SOCK_UNLOCK(so); + } else { + flags = inp->sctp_flags; + if ((flags & SCTP_PCB_FLAGS_SOCKET_GONE) == 0) { + goto sctp_must_try_again; + } + } + return; +} + + +int +sctp_sendm(struct socket *so, int flags, struct mbuf *m, struct sockaddr *addr, + struct mbuf *control, struct thread *p); + + +int +sctp_sendm(struct socket *so, int flags, struct mbuf *m, struct sockaddr *addr, + struct mbuf *control, struct thread *p) +{ + struct sctp_inpcb *inp; + int error; + + inp = (struct sctp_inpcb *)so->so_pcb; + if (inp == 0) { + 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 EDESTADDRREQ; + } +#endif /* INET6 */ +connected_type: + /* now what about control */ + if (control) { + if (inp->control) { + SCTP_PRINTF("huh? control set?\n"); + 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 ( + /* FreeBSD uses a flag passed */ + ((flags & PRUS_MORETOCOME) == 0) + ) { + /* + * 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. + */ + int ret; + + ret = sctp_output(inp, inp->pkt, addr, inp->control, p, flags); + inp->pkt = NULL; + inp->control = NULL; + return (ret); + } else { + return (0); + } +} + +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 { + 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 (((so->so_options & SO_LINGER) && + (so->so_linger == 0)) || + (so->so_rcv.sb_cc > 0)) { + if (SCTP_GET_STATE(asoc) != + SCTP_STATE_COOKIE_WAIT) { + /* Left with Data unread */ + struct mbuf *err; + + err = sctp_get_mbuf_for_msg(sizeof(struct sctp_paramhdr), 0, M_DONTWAIT, 1, MT_DATA); + if (err) { + /* + * Fill in the user + * initiated abort + */ + struct sctp_paramhdr *ph; + + ph = mtod(err, struct sctp_paramhdr *); + SCTP_BUF_LEN(err) = sizeof(struct sctp_paramhdr); + ph->param_type = htons(SCTP_CAUSE_USER_INITIATED_ABT); + ph->param_length = htons(SCTP_BUF_LEN(err)); + } +#if defined(SCTP_PANIC_ON_ABORT) + panic("disconnect does an abort"); +#endif + sctp_send_abort_tcb(stcb, err, SCTP_SO_LOCKED); + SCTP_STAT_INCR_COUNTER32(sctps_aborted); + } + SCTP_INP_RUNLOCK(inp); + if ((SCTP_GET_STATE(&stcb->asoc) == SCTP_STATE_OPEN) || + (SCTP_GET_STATE(&stcb->asoc) == 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 */ + 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->locked_on_sending) { + goto abort_anyway; + } + if ((SCTP_GET_STATE(asoc) != SCTP_STATE_SHUTDOWN_SENT) && + (SCTP_GET_STATE(asoc) != SCTP_STATE_SHUTDOWN_ACK_SENT)) { + /* only send SHUTDOWN 1st time thru */ + sctp_stop_timers_for_shutdown(stcb); + sctp_send_shutdown(stcb, + stcb->asoc.primary_destination); + sctp_chunk_output(stcb->sctp_ep, stcb, SCTP_OUTPUT_FROM_T3, SCTP_SO_LOCKED); + if ((SCTP_GET_STATE(asoc) == SCTP_STATE_OPEN) || + (SCTP_GET_STATE(asoc) == SCTP_STATE_SHUTDOWN_RECEIVED)) { + SCTP_STAT_DECR_GAUGE32(sctps_currestab); + } + SCTP_SET_STATE(asoc, SCTP_STATE_SHUTDOWN_SENT); + SCTP_CLEAR_SUBSTATE(asoc, SCTP_STATE_SHUTDOWN_PENDING); + sctp_timer_start(SCTP_TIMER_TYPE_SHUTDOWN, + stcb->sctp_ep, stcb, + asoc->primary_destination); + sctp_timer_start(SCTP_TIMER_TYPE_SHUTDOWNGUARD, + stcb->sctp_ep, stcb, + asoc->primary_destination); + } + } 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 + */ + asoc->state |= SCTP_STATE_SHUTDOWN_PENDING; + sctp_timer_start(SCTP_TIMER_TYPE_SHUTDOWNGUARD, stcb->sctp_ep, stcb, + asoc->primary_destination); + if (asoc->locked_on_sending) { + /* Locked to send out the data */ + struct sctp_stream_queue_pending *sp; + + sp = TAILQ_LAST(&asoc->locked_on_sending->outqueue, sctp_streamhead); + if (sp == NULL) { + SCTP_PRINTF("Error, sp is NULL, locked on sending is non-null strm:%d\n", + asoc->locked_on_sending->stream_no); + } else { + if ((sp->length == 0) && (sp->msg_is_complete == 0)) + asoc->state |= 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_get_mbuf_for_msg((sizeof(struct sctp_paramhdr) + sizeof(uint32_t)), + 0, M_DONTWAIT, 1, MT_DATA); + if (op_err) { + /* + * Fill in the user + * initiated abort + */ + struct sctp_paramhdr *ph; + uint32_t *ippp; + + SCTP_BUF_LEN(op_err) = + (sizeof(struct sctp_paramhdr) + sizeof(uint32_t)); + ph = mtod(op_err, + struct sctp_paramhdr *); + ph->param_type = htons( + SCTP_CAUSE_USER_INITIATED_ABT); + ph->param_length = htons(SCTP_BUF_LEN(op_err)); + ippp = (uint32_t *) (ph + 1); + *ippp = htonl(SCTP_FROM_SCTP_USRREQ + SCTP_LOC_4); + } +#if defined(SCTP_PANIC_ON_ABORT) + panic("disconnect does an abort"); +#endif + + 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->asoc) == SCTP_STATE_OPEN) || + (SCTP_GET_STATE(&stcb->asoc) == 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); + return (0); + } else { + sctp_chunk_output(inp, stcb, SCTP_OUTPUT_FROM_CLOSING, SCTP_SO_LOCKED); + } + } + soisdisconnecting(so); + 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; + } +} + +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); +} + +int +sctp_shutdown(struct socket *so) +{ + struct sctp_inpcb *inp; + + inp = (struct sctp_inpcb *)so->so_pcb; + if (inp == 0) { + 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_UDPTYPE) { + /* Restore the flags that the soshutdown took away. */ + SOCKBUF_LOCK(&so->so_rcv); + so->so_rcv.sb_state &= ~SBS_CANTRCVMORE; + SOCKBUF_UNLOCK(&so->so_rcv); + /* 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); + } + /* + * 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. + */ + { + struct sctp_tcb *stcb; + struct sctp_association *asoc; + + 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 (TAILQ_EMPTY(&asoc->send_queue) && + TAILQ_EMPTY(&asoc->sent_queue) && + (asoc->stream_queue_cnt == 0)) { + if (asoc->locked_on_sending) { + goto abort_anyway; + } + /* there is nothing queued to send, so I'm done... */ + if (SCTP_GET_STATE(asoc) != SCTP_STATE_SHUTDOWN_SENT) { + /* only send SHUTDOWN the first time through */ + sctp_stop_timers_for_shutdown(stcb); + sctp_send_shutdown(stcb, + stcb->asoc.primary_destination); + sctp_chunk_output(stcb->sctp_ep, stcb, SCTP_OUTPUT_FROM_T3, SCTP_SO_LOCKED); + if ((SCTP_GET_STATE(asoc) == SCTP_STATE_OPEN) || + (SCTP_GET_STATE(asoc) == SCTP_STATE_SHUTDOWN_RECEIVED)) { + SCTP_STAT_DECR_GAUGE32(sctps_currestab); + } + SCTP_SET_STATE(asoc, SCTP_STATE_SHUTDOWN_SENT); + SCTP_CLEAR_SUBSTATE(asoc, SCTP_STATE_SHUTDOWN_PENDING); + sctp_timer_start(SCTP_TIMER_TYPE_SHUTDOWN, + stcb->sctp_ep, stcb, + asoc->primary_destination); + sctp_timer_start(SCTP_TIMER_TYPE_SHUTDOWNGUARD, + stcb->sctp_ep, stcb, + asoc->primary_destination); + } + } else { + /* + * we still got (or just got) data to send, so set + * SHUTDOWN_PENDING + */ + asoc->state |= SCTP_STATE_SHUTDOWN_PENDING; + sctp_timer_start(SCTP_TIMER_TYPE_SHUTDOWNGUARD, stcb->sctp_ep, stcb, + asoc->primary_destination); + + if (asoc->locked_on_sending) { + /* Locked to send out the data */ + struct sctp_stream_queue_pending *sp; + + sp = TAILQ_LAST(&asoc->locked_on_sending->outqueue, sctp_streamhead); + if (sp == NULL) { + SCTP_PRINTF("Error, sp is NULL, locked on sending is non-null strm:%d\n", + asoc->locked_on_sending->stream_no); + } else { + if ((sp->length == 0) && (sp->msg_is_complete == 0)) { + asoc->state |= 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_get_mbuf_for_msg((sizeof(struct sctp_paramhdr) + sizeof(uint32_t)), + 0, M_DONTWAIT, 1, MT_DATA); + if (op_err) { + /* Fill in the user initiated abort */ + struct sctp_paramhdr *ph; + uint32_t *ippp; + + SCTP_BUF_LEN(op_err) = + sizeof(struct sctp_paramhdr) + sizeof(uint32_t); + ph = mtod(op_err, + struct sctp_paramhdr *); + ph->param_type = htons( + SCTP_CAUSE_USER_INITIATED_ABT); + ph->param_length = htons(SCTP_BUF_LEN(op_err)); + ippp = (uint32_t *) (ph + 1); + *ippp = htonl(SCTP_FROM_SCTP_USRREQ + SCTP_LOC_6); + } +#if defined(SCTP_PANIC_ON_ABORT) + panic("shutdown does an abort"); +#endif + stcb->sctp_ep->last_abort_code = SCTP_FROM_SCTP_USRREQ + SCTP_LOC_6; + sctp_abort_an_association(stcb->sctp_ep, stcb, + SCTP_RESPONSE_TO_USER_REQ, + op_err, SCTP_SO_LOCKED); + goto skip_unlock; + } else { + sctp_chunk_output(inp, stcb, SCTP_OUTPUT_FROM_CLOSING, SCTP_SO_LOCKED); + } + } + SCTP_TCB_UNLOCK(stcb); + } +skip_unlock: + SCTP_INP_RUNLOCK(inp); + 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_storage *ss, struct sockaddr *sa) +{ +#ifdef INET6 + struct sockaddr_in6 lsa6; + + sa = (struct sockaddr *)sctp_recover_scope((struct sockaddr_in6 *)sa, + &lsa6); +#endif + memcpy(ss, sa, sa->sa_len); + return (0); +} + + + +/* + * NOTE: assumes addr lock is held + */ +static size_t +sctp_fill_up_addresses_vrf(struct sctp_inpcb *inp, + struct sctp_tcb *stcb, + size_t limit, + struct sockaddr_storage *sas, + uint32_t vrf_id) +{ + struct sctp_ifn *sctp_ifn; + struct sctp_ifa *sctp_ifa; + int loopback_scope, ipv4_local_scope, local_scope, site_scope; + size_t actual; + int ipv4_addr_legal, ipv6_addr_legal; + struct sctp_vrf *vrf; + + actual = 0; + if (limit <= 0) + return (actual); + + if (stcb) { + /* Turn on all the appropriate scope */ + loopback_scope = stcb->asoc.loopback_scope; + ipv4_local_scope = stcb->asoc.ipv4_local_scope; + local_scope = stcb->asoc.local_scope; + site_scope = stcb->asoc.site_scope; + } else { + /* Turn on ALL scope, since we look at the EP */ + loopback_scope = ipv4_local_scope = local_scope = + site_scope = 1; + } + ipv4_addr_legal = ipv6_addr_legal = 0; + if (inp->sctp_flags & SCTP_PCB_FLAGS_BOUND_V6) { + ipv6_addr_legal = 1; + if (SCTP_IPV6_V6ONLY(inp) == 0) { + ipv4_addr_legal = 1; + } + } else { + ipv4_addr_legal = 1; + } + 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) { + case AF_INET: + if (ipv4_addr_legal) { + struct sockaddr_in *sin; + + sin = (struct sockaddr_in *)&sctp_ifa->address.sa; + if (sin->sin_addr.s_addr == 0) { + /* + * we skip + * unspecifed + * addresses + */ + continue; + } + 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)) { + in6_sin_2_v4mapsin6(sin, (struct sockaddr_in6 *)sas); + ((struct sockaddr_in6 *)sas)->sin6_port = inp->sctp_lport; + sas = (struct sockaddr_storage *)((caddr_t)sas + sizeof(struct sockaddr_in6)); + actual += sizeof(struct sockaddr_in6); + } else { +#endif + memcpy(sas, sin, sizeof(*sin)); + ((struct sockaddr_in *)sas)->sin_port = inp->sctp_lport; + sas = (struct sockaddr_storage *)((caddr_t)sas + sizeof(*sin)); + actual += sizeof(*sin); +#ifdef INET6 + } +#endif + if (actual >= limit) { + return (actual); + } + } else { + continue; + } + break; +#ifdef INET6 + case AF_INET6: + if (ipv6_addr_legal) { + struct sockaddr_in6 *sin6; + + sin6 = (struct sockaddr_in6 *)&sctp_ifa->address.sa; + if (IN6_IS_ADDR_UNSPECIFIED(&sin6->sin6_addr)) { + /* + * we skip + * unspecifed + * addresses + */ + continue; + } + if (IN6_IS_ADDR_LINKLOCAL(&sin6->sin6_addr)) { + if (local_scope == 0) + continue; + if (sin6->sin6_scope_id == 0) { + if (sa6_recoverscope(sin6) != 0) + /* + * + * bad + * + * li + * nk + * + * loc + * al + * + * add + * re + * ss + * */ + continue; + } + } + if ((site_scope == 0) && + (IN6_IS_ADDR_SITELOCAL(&sin6->sin6_addr))) { + continue; + } + memcpy(sas, sin6, sizeof(*sin6)); + ((struct sockaddr_in6 *)sas)->sin6_port = inp->sctp_lport; + sas = (struct sockaddr_storage *)((caddr_t)sas + sizeof(*sin6)); + actual += sizeof(*sin6); + if (actual >= limit) { + return (actual); + } + } else { + continue; + } + break; +#endif + default: + /* TSNH */ + break; + } + } + } + } else { + struct sctp_laddr *laddr; + + LIST_FOREACH(laddr, &inp->sctp_addr_list, sctp_nxt_addr) { + if (stcb) { + if (sctp_is_addr_restricted(stcb, laddr->ifa)) { + continue; + } + } + if (sctp_fill_user_address(sas, &laddr->ifa->address.sa)) + continue; + + ((struct sockaddr_in6 *)sas)->sin6_port = inp->sctp_lport; + sas = (struct sockaddr_storage *)((caddr_t)sas + + laddr->ifa->address.sa.sa_len); + actual += laddr->ifa->address.sa.sa_len; + if (actual >= limit) { + return (actual); + } + } + } + return (actual); +} + +static size_t +sctp_fill_up_addresses(struct sctp_inpcb *inp, + struct sctp_tcb *stcb, + size_t limit, + struct sockaddr_storage *sas) +{ + size_t size = 0; + + SCTP_IPI_ADDR_RLOCK(); + /* fill up addresses for the endpoint's default vrf */ + size = sctp_fill_up_addresses_vrf(inp, stcb, limit, sas, + inp->def_vrf_id); + SCTP_IPI_ADDR_RUNLOCK(); + return (size); +} + +/* + * NOTE: assumes addr lock is held + */ +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. + */ + 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 */ + if (sctp_ifa->address.sa.sa_family == AF_INET) { + if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_NEEDS_MAPPED_V4)) + cnt += sizeof(struct sockaddr_in6); + else + cnt += sizeof(struct sockaddr_in); + + } else if (sctp_ifa->address.sa.sa_family == AF_INET6) + cnt += sizeof(struct sockaddr_in6); + } + } + } else { + struct sctp_laddr *laddr; + + LIST_FOREACH(laddr, &inp->sctp_addr_list, sctp_nxt_addr) { + if (laddr->ifa->address.sa.sa_family == AF_INET) { + if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_NEEDS_MAPPED_V4)) + cnt += sizeof(struct sockaddr_in6); + else + cnt += sizeof(struct sockaddr_in); + + } else if (laddr->ifa->address.sa.sa_family == AF_INET6) + cnt += sizeof(struct sockaddr_in6); + } + } + return (cnt); +} + +static int +sctp_count_max_addresses(struct sctp_inpcb *inp) +{ + int cnt = 0; + + SCTP_IPI_ADDR_RLOCK(); + /* count addresses for the endpoint's default VRF */ + cnt = sctp_count_max_addresses_vrf(inp, inp->def_vrf_id); + 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 = 0; + int creat_lock_on = 0; + struct sctp_tcb *stcb = NULL; + struct sockaddr *sa; + int num_v6 = 0, num_v4 = 0, *totaddrp, totaddr; + int added = 0; + uint32_t vrf_id; + int bad_addresses = 0; + 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 = (int *)optval; + totaddr = *totaddrp; + sa = (struct sockaddr *)(totaddrp + 1); + stcb = sctp_connectx_helper_find(inp, sa, &totaddr, &num_v4, &num_v6, &error, (optsize - sizeof(int)), &bad_addresses); + if ((stcb != NULL) || bad_addresses) { + /* Already have or am bring up an association */ + SCTP_ASOC_CREATE_UNLOCK(inp); + creat_lock_on = 0; + if (stcb) + SCTP_TCB_UNLOCK(stcb); + if (bad_addresses == 0) { + SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EALREADY); + error = EALREADY; + } + 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)) { + struct in6pcb *inp6; + + inp6 = (struct in6pcb *)inp; + if (SCTP_IPV6_V6ONLY(inp6)) { + /* + * 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, + (struct thread *)p + ); + if (stcb == NULL) { + /* Gak! no memory */ + goto out_now; + } + SCTP_SET_STATE(&stcb->asoc, SCTP_STATE_COOKIE_WAIT); + /* move to second address */ + if (sa->sa_family == AF_INET) + sa = (struct sockaddr *)((caddr_t)sa + sizeof(struct sockaddr_in)); + else + sa = (struct sockaddr *)((caddr_t)sa + sizeof(struct sockaddr_in6)); + + error = 0; + added = sctp_connectx_helper_add(stcb, sa, (totaddr - 1), &error); + /* Fill in the return id */ + if (error) { + (void)sctp_free_assoc(inp, stcb, SCTP_PCBFREE_FORCE, SCTP_FROM_SCTP_USRREQ + SCTP_LOC_6); + goto out_now; + } + a_id = (sctp_assoc_t *) optval; + *a_id = sctp_get_associd(stcb); + + /* initialize authentication parameters for the assoc */ + sctp_initialize_auth_params(inp, 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); + 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); + } +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 != 0) { \ + 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; \ + } \ + } + +static int +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 == 0) { + 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 = TICKS_TO_SEC(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 (optname != SCTP_AUTOCLOSE) { + /* make it an "on/off" value */ + val = (val != 0); + } + 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_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 { + SCTP_INP_RLOCK(inp); + av->assoc_value = inp->sctp_cmt_on_off; + SCTP_INP_RUNLOCK(inp); + } + *optsize = sizeof(*av); + } + break; + /* JRS - Get socket option for pluggable congestion control */ + 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 { + av->assoc_value = inp->sctp_ep.sctp_default_cc_module; + } + *optsize = sizeof(*av); + } + 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 (error) { + SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error); + } + *optsize = sizeof(*av); + } + break; + case SCTP_GET_ASSOC_NUMBER: + { + uint32_t *value, cnt; + + SCTP_CHECK_AND_CAST(value, optval, uint32_t, *optsize); + cnt = 0; + SCTP_INP_RLOCK(inp); + 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; + unsigned int at, limit; + + SCTP_CHECK_AND_CAST(ids, optval, struct sctp_assoc_ids, *optsize); + at = 0; + limit = (*optsize - sizeof(uint32_t)) / sizeof(sctp_assoc_t); + SCTP_INP_RLOCK(inp); + LIST_FOREACH(stcb, &inp->sctp_asoc_list, sctp_tcblist) { + if (at < limit) { + ids->gaids_assoc_id[at++] = sctp_get_associd(stcb); + } else { + error = EINVAL; + SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error); + break; + } + } + SCTP_INP_RUNLOCK(inp); + 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 { + SCTP_INP_RLOCK(inp); + av->assoc_value = inp->sctp_context; + SCTP_INP_RUNLOCK(inp); + } + *optsize = sizeof(*av); + } + 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; + 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); + break; + } + id->assoc_value = stcb->asoc.vrf_id; + break; + } + case SCTP_GET_VRF_IDS: + { + SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EOPNOTSUPP); + error = EOPNOTSUPP; + 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); + } else { + SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOTCONN); + error = ENOTCONN; + } + *optsize = sizeof(*gnv); + } + 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 { + SCTP_INP_RLOCK(inp); + sack->sack_delay = TICKS_TO_MSEC(inp->sctp_ep.sctp_timeoutticks[SCTP_TIMER_RECV]); + sack->sack_freq = inp->sctp_ep.sctp_sack_freq; + SCTP_INP_RUNLOCK(inp); + } + *optsize = sizeof(*sack); + } + 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); + } else { + SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOTCONN); + error = ENOTCONN; + } + *optsize = sizeof(struct sctp_sockstat); + } + break; + case SCTP_MAX_BURST: + { + uint8_t *value; + + SCTP_CHECK_AND_CAST(value, optval, uint8_t, *optsize); + + SCTP_INP_RLOCK(inp); + *value = inp->sctp_ep.max_burst; + SCTP_INP_RUNLOCK(inp); + *optsize = sizeof(uint8_t); + } + 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 { + 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); + } + *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(*events)); + 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) { + if ((sctp_is_feature_on(inp, SCTP_PCB_FLAGS_NEEDS_MAPPED_V4)) || + (((struct sockaddr *)&net->ro._l_addr)->sa_family == AF_INET6)) { + size += sizeof(struct sockaddr_in6); + } else if (((struct sockaddr *)&net->ro._l_addr)->sa_family == AF_INET) { + size += sizeof(struct sockaddr_in); + } else { + /* huh */ + break; + } + } + SCTP_TCB_UNLOCK(stcb); + *value = (uint32_t) size; + } else { + SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOTCONN); + error = ENOTCONN; + } + *optsize = sizeof(uint32_t); + } + 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_storage *sas; + 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) - sizeof(struct sctp_getaddresses); + *optsize = sizeof(struct sctp_getaddresses); + sas = (struct sockaddr_storage *)&saddr->addr[0]; + + TAILQ_FOREACH(net, &stcb->asoc.nets, sctp_next) { + if ((sctp_is_feature_on(inp, SCTP_PCB_FLAGS_NEEDS_MAPPED_V4)) || + (((struct sockaddr *)&net->ro._l_addr)->sa_family == AF_INET6)) { + cpsz = sizeof(struct sockaddr_in6); + } else if (((struct sockaddr *)&net->ro._l_addr)->sa_family == AF_INET) { + cpsz = sizeof(struct sockaddr_in); + } else { + /* huh */ + break; + } + if (left < cpsz) { + /* not enough room. */ + break; + } +#ifdef INET6 + if ((sctp_is_feature_on(inp, SCTP_PCB_FLAGS_NEEDS_MAPPED_V4)) && + (((struct sockaddr *)&net->ro._l_addr)->sa_family == AF_INET)) { + /* Must map the address */ + in6_sin_2_v4mapsin6((struct sockaddr_in *)&net->ro._l_addr, + (struct sockaddr_in6 *)sas); + } else { +#endif + memcpy(sas, &net->ro._l_addr, cpsz); +#ifdef INET6 + } +#endif + ((struct sockaddr_in *)sas)->sin_port = stcb->rport; + + sas = (struct sockaddr_storage *)((caddr_t)sas + 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 sockaddr_storage *sas; + struct sctp_getaddresses *saddr; + + SCTP_CHECK_AND_CAST(saddr, optval, struct sctp_getaddresses, *optsize); + SCTP_FIND_STCB(inp, stcb, saddr->sget_assoc_id); + + sas = (struct sockaddr_storage *)&saddr->addr[0]; + limit = *optsize - sizeof(sctp_assoc_t); + actual = sctp_fill_up_addresses(inp, stcb, limit, sas); + if (stcb) { + SCTP_TCB_UNLOCK(stcb); + } + *optsize = sizeof(struct sockaddr_storage) + actual; + } + break; + case SCTP_PEER_ADDR_PARAMS: + { + struct sctp_paddrparams *paddrp; + struct sctp_nets *net; + + SCTP_CHECK_AND_CAST(paddrp, optval, struct sctp_paddrparams, *optsize); + SCTP_FIND_STCB(inp, stcb, paddrp->spp_assoc_id); + + net = NULL; + if (stcb) { + net = sctp_findnet(stcb, (struct sockaddr *)&paddrp->spp_address); + } 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, (struct sockaddr *)&paddrp->spp_address, &net, NULL, NULL); + if (stcb == NULL) { + SCTP_INP_DECR_REF(inp); + } + } + if (stcb && (net == NULL)) { + struct sockaddr *sa; + + sa = (struct sockaddr *)&paddrp->spp_address; + if (sa->sa_family == AF_INET) { + struct sockaddr_in *sin; + + sin = (struct sockaddr_in *)sa; + if (sin->sin_addr.s_addr) { + error = EINVAL; + SCTP_TCB_UNLOCK(stcb); + SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error); + break; + } + } else if (sa->sa_family == AF_INET6) { + struct sockaddr_in6 *sin6; + + sin6 = (struct sockaddr_in6 *)sa; + 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 { + error = EAFNOSUPPORT; + SCTP_TCB_UNLOCK(stcb); + SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error); + break; + } + } + if (stcb) { + /* Applys to the specific association */ + paddrp->spp_flags = 0; + if (net) { + int ovh; + + if (inp->sctp_flags & SCTP_PCB_FLAGS_BOUND_V6) { + ovh = SCTP_MED_OVERHEAD; + } else { + ovh = SCTP_MED_V4_OVERHEAD; + } + + + paddrp->spp_pathmaxrxt = net->failure_threshold; + paddrp->spp_pathmtu = net->mtu - ovh; + /* 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 (SCTP_OS_TIMER_PENDING(&net->pmtu_timer.timer)) { + paddrp->spp_flags |= SPP_PMTUD_ENABLE; + } else { + paddrp->spp_flags |= SPP_PMTUD_DISABLE; + } +#ifdef INET + if (net->ro._l_addr.sin.sin_family == AF_INET) { + paddrp->spp_ipv4_tos = net->tos_flowlabel & 0x000000fc; + paddrp->spp_flags |= SPP_IPV4_TOS; + } +#endif +#ifdef INET6 + if (net->ro._l_addr.sin6.sin6_family == AF_INET6) { + paddrp->spp_ipv6_flowlabel = net->tos_flowlabel; + paddrp->spp_flags |= SPP_IPV6_FLOWLABEL; + } +#endif + } else { + /* + * No destination so return default + * value + */ + int cnt = 0; + + paddrp->spp_pathmaxrxt = stcb->asoc.def_net_failure; + paddrp->spp_pathmtu = sctp_get_frag_point(stcb, &stcb->asoc); +#ifdef INET + paddrp->spp_ipv4_tos = stcb->asoc.default_tos & 0x000000fc; + paddrp->spp_flags |= SPP_IPV4_TOS; +#endif +#ifdef INET6 + paddrp->spp_ipv6_flowlabel = stcb->asoc.default_flowlabel; + paddrp->spp_flags |= SPP_IPV6_FLOWLABEL; +#endif + /* default settings should be these */ + if (stcb->asoc.hb_is_disabled == 0) { + paddrp->spp_flags |= SPP_HB_ENABLE; + } else { + paddrp->spp_flags |= SPP_HB_DISABLE; + } + TAILQ_FOREACH(net, &stcb->asoc.nets, sctp_next) { + if (SCTP_OS_TIMER_PENDING(&net->pmtu_timer.timer)) { + cnt++; + } + } + if (cnt) { + 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 { + /* Use endpoint defaults */ + SCTP_INP_RLOCK(inp); + paddrp->spp_pathmaxrxt = inp->sctp_ep.def_net_failure; + paddrp->spp_hbinterval = TICKS_TO_MSEC(inp->sctp_ep.sctp_timeoutticks[SCTP_TIMER_HEARTBEAT]); + paddrp->spp_assoc_id = (sctp_assoc_t) 0; + /* get inp's default */ +#ifdef INET + paddrp->spp_ipv4_tos = inp->ip_inp.inp.inp_ip_tos; + paddrp->spp_flags |= SPP_IPV4_TOS; +#endif +#ifdef INET6 + if (inp->sctp_flags & SCTP_PCB_FLAGS_BOUND_V6) { + paddrp->spp_ipv6_flowlabel = ((struct in6pcb *)inp)->in6p_flowinfo; + paddrp->spp_flags |= SPP_IPV6_FLOWLABEL; + } +#endif + /* can't return this */ + paddrp->spp_pathmtu = 0; + + /* default behavior, no stcb */ + paddrp->spp_flags = SPP_PMTUD_ENABLE; + + if (sctp_is_feature_off(inp, SCTP_PCB_FLAGS_DONOT_HEARTBEAT)) { + paddrp->spp_flags |= SPP_HB_ENABLE; + } else { + paddrp->spp_flags |= SPP_HB_DISABLE; + } + SCTP_INP_RUNLOCK(inp); + } + *optsize = sizeof(struct sctp_paddrparams); + } + break; + case SCTP_GET_PEER_ADDR_INFO: + { + struct sctp_paddrinfo *paddri; + struct sctp_nets *net; + + SCTP_CHECK_AND_CAST(paddri, optval, struct sctp_paddrinfo, *optsize); + SCTP_FIND_STCB(inp, stcb, paddri->spinfo_assoc_id); + + net = NULL; + if (stcb) { + net = sctp_findnet(stcb, (struct sockaddr *)&paddri->spinfo_address); + } 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, (struct sockaddr *)&paddri->spinfo_address, &net, NULL, NULL); + if (stcb == NULL) { + SCTP_INP_DECR_REF(inp); + } + } + + if ((stcb) && (net)) { + paddri->spinfo_state = net->dest_state & (SCTP_REACHABLE_MASK | SCTP_ADDR_NOHB); + paddri->spinfo_cwnd = net->cwnd; + paddri->spinfo_srtt = ((net->lastsa >> 2) + net->lastsv) >> 1; + paddri->spinfo_rto = net->RTO; + paddri->spinfo_assoc_id = sctp_get_associd(stcb); + SCTP_TCB_UNLOCK(stcb); + } else { + if (stcb) { + SCTP_TCB_UNLOCK(stcb); + } + SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOENT); + error = ENOENT; + } + *optsize = sizeof(struct sctp_paddrinfo); + } + 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, error); + error = EINVAL; + break; + } + /* + * I think passing the state is fine since + * sctp_constants.h will be available to the user + * land. + */ + sstat->sstat_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); + memcpy(&sstat->sstat_primary.spinfo_address, + &stcb->asoc.primary_destination->ro._l_addr, + ((struct sockaddr *)(&stcb->asoc.primary_destination->ro._l_addr))->sa_len); + net = stcb->asoc.primary_destination; + ((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. + */ + sstat->sstat_primary.spinfo_state = net->dest_state & SCTP_REACHABLE_MASK; + sstat->sstat_primary.spinfo_cwnd = net->cwnd; + sstat->sstat_primary.spinfo_srtt = net->lastsa; + sstat->sstat_primary.spinfo_rto = net->RTO; + sstat->sstat_primary.spinfo_mtu = net->mtu; + sstat->sstat_primary.spinfo_assoc_id = sctp_get_associd(stcb); + SCTP_TCB_UNLOCK(stcb); + *optsize = sizeof(*sstat); + } + 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 { + 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); + } + *optsize = sizeof(*srto); + } + 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); + } else { + SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error); + error = EINVAL; + } + *optsize = sizeof(*stimo); + } + break; + case SCTP_ASSOCINFO: + { + struct sctp_assocparams *sasoc; + uint32_t oldval; + + SCTP_CHECK_AND_CAST(sasoc, optval, struct sctp_assocparams, *optsize); + SCTP_FIND_STCB(inp, stcb, sasoc->sasoc_assoc_id); + + if (stcb) { + oldval = sasoc->sasoc_cookie_life; + sasoc->sasoc_cookie_life = TICKS_TO_MSEC(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 { + SCTP_INP_RLOCK(inp); + sasoc->sasoc_cookie_life = TICKS_TO_MSEC(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); + } + *optsize = sizeof(*sasoc); + } + 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 { + SCTP_INP_RLOCK(inp); + memcpy(s_info, &inp->def_send, sizeof(inp->def_send)); + SCTP_INP_RUNLOCK(inp); + } + *optsize = sizeof(*s_info); + } + 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(*sinit); + } + 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) { + /* simply copy out the sockaddr_storage... */ + int len; + + len = *optsize; + if (len > stcb->asoc.primary_destination->ro._l_addr.sa.sa_len) + len = stcb->asoc.primary_destination->ro._l_addr.sa.sa_len; + + memcpy(&ssp->ssp_addr, + &stcb->asoc.primary_destination->ro._l_addr, + len); + SCTP_TCB_UNLOCK(stcb); + } else { + SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error); + error = EINVAL; + } + *optsize = sizeof(*ssp); + } + 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, error); + 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 { + /* get the endpoint active key */ + SCTP_INP_RLOCK(inp); + scact->scact_keynumber = inp->sctp_ep.default_keyid; + SCTP_INP_RUNLOCK(inp); + } + *optsize = sizeof(*scact); + 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); + } + SCTP_TCB_UNLOCK(stcb); + } else { + /* 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); + } + SCTP_INP_RUNLOCK(inp); + } + *optsize = sizeof(struct sctp_authchunks) + size; + 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); + } + SCTP_TCB_UNLOCK(stcb); + } else { + SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOENT); + error = ENOENT; + } + *optsize = sizeof(struct sctp_authchunks) + size; + break; + } + + + default: + SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOPROTOOPT); + error = ENOPROTOOPT; + *optsize = 0; + break; + } /* end switch (sopt->sopt_name) */ + return (error); +} + +static int +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_PRINTF("optval is NULL\n"); + SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL); + return (EINVAL); + } + inp = (struct sctp_inpcb *)so->so_pcb; + if (inp == 0) { + SCTP_PRINTF("inp is NULL?\n"); + 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 */ + 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 = SEC_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_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); + SCTP_FIND_STCB(inp, stcb, av->assoc_id); + if (stcb) { + if (av->assoc_value != 0) + stcb->asoc.sctp_cmt_on_off = 1; + else + stcb->asoc.sctp_cmt_on_off = 0; + SCTP_TCB_UNLOCK(stcb); + } else { + SCTP_INP_WLOCK(inp); + if (av->assoc_value != 0) + inp->sctp_cmt_on_off = 1; + else + inp->sctp_cmt_on_off = 0; + SCTP_INP_WUNLOCK(inp); + } + } else { + SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOPROTOOPT); + error = ENOPROTOOPT; + } + break; + /* JRS - Set socket option for pluggable congestion control */ + 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) { + switch (av->assoc_value) { + /* + * JRS - Standard TCP congestion + * control + */ + case SCTP_CC_RFC2581: + { + stcb->asoc.congestion_control_module = SCTP_CC_RFC2581; + stcb->asoc.cc_functions.sctp_set_initial_cc_param = &sctp_set_initial_cc_param; + stcb->asoc.cc_functions.sctp_cwnd_update_after_sack = &sctp_cwnd_update_after_sack; + stcb->asoc.cc_functions.sctp_cwnd_update_after_fr = &sctp_cwnd_update_after_fr; + stcb->asoc.cc_functions.sctp_cwnd_update_after_timeout = &sctp_cwnd_update_after_timeout; + stcb->asoc.cc_functions.sctp_cwnd_update_after_ecn_echo = &sctp_cwnd_update_after_ecn_echo; + stcb->asoc.cc_functions.sctp_cwnd_update_after_packet_dropped = &sctp_cwnd_update_after_packet_dropped; + stcb->asoc.cc_functions.sctp_cwnd_update_after_output = &sctp_cwnd_update_after_output; + stcb->asoc.cc_functions.sctp_cwnd_update_after_fr_timer = &sctp_cwnd_update_after_fr_timer; + SCTP_TCB_UNLOCK(stcb); + break; + } + /* + * JRS - High Speed TCP congestion + * control (Floyd) + */ + case SCTP_CC_HSTCP: + { + stcb->asoc.congestion_control_module = SCTP_CC_HSTCP; + stcb->asoc.cc_functions.sctp_set_initial_cc_param = &sctp_set_initial_cc_param; + stcb->asoc.cc_functions.sctp_cwnd_update_after_sack = &sctp_hs_cwnd_update_after_sack; + stcb->asoc.cc_functions.sctp_cwnd_update_after_fr = &sctp_hs_cwnd_update_after_fr; + stcb->asoc.cc_functions.sctp_cwnd_update_after_timeout = &sctp_cwnd_update_after_timeout; + stcb->asoc.cc_functions.sctp_cwnd_update_after_ecn_echo = &sctp_cwnd_update_after_ecn_echo; + stcb->asoc.cc_functions.sctp_cwnd_update_after_packet_dropped = &sctp_cwnd_update_after_packet_dropped; + stcb->asoc.cc_functions.sctp_cwnd_update_after_output = &sctp_cwnd_update_after_output; + stcb->asoc.cc_functions.sctp_cwnd_update_after_fr_timer = &sctp_cwnd_update_after_fr_timer; + SCTP_TCB_UNLOCK(stcb); + break; + } + /* JRS - HTCP congestion control */ + case SCTP_CC_HTCP: + { + stcb->asoc.congestion_control_module = SCTP_CC_HTCP; + stcb->asoc.cc_functions.sctp_set_initial_cc_param = &sctp_htcp_set_initial_cc_param; + stcb->asoc.cc_functions.sctp_cwnd_update_after_sack = &sctp_htcp_cwnd_update_after_sack; + stcb->asoc.cc_functions.sctp_cwnd_update_after_fr = &sctp_htcp_cwnd_update_after_fr; + stcb->asoc.cc_functions.sctp_cwnd_update_after_timeout = &sctp_htcp_cwnd_update_after_timeout; + stcb->asoc.cc_functions.sctp_cwnd_update_after_ecn_echo = &sctp_htcp_cwnd_update_after_ecn_echo; + stcb->asoc.cc_functions.sctp_cwnd_update_after_packet_dropped = &sctp_cwnd_update_after_packet_dropped; + stcb->asoc.cc_functions.sctp_cwnd_update_after_output = &sctp_cwnd_update_after_output; + stcb->asoc.cc_functions.sctp_cwnd_update_after_fr_timer = &sctp_htcp_cwnd_update_after_fr_timer; + SCTP_TCB_UNLOCK(stcb); + break; + } + /* + * JRS - All other values are + * invalid + */ + default: + { + SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL); + error = EINVAL; + SCTP_TCB_UNLOCK(stcb); + break; + } + } + } else { + switch (av->assoc_value) { + case SCTP_CC_RFC2581: + case SCTP_CC_HSTCP: + case SCTP_CC_HTCP: + inp->sctp_ep.sctp_default_cc_module = av->assoc_value; + break; + default: + SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL); + error = EINVAL; + break; + }; + } + } + 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 { + SCTP_INP_WLOCK(inp); + inp->sctp_context = av->assoc_value; + SCTP_INP_WUNLOCK(inp); + } + } + break; + case SCTP_VRF_ID: + { + uint32_t *default_vrfid; + + 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; + } + inp->def_vrf_id = *default_vrfid; + break; + } + case SCTP_DEL_VRF_ID: + { + SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EOPNOTSUPP); + error = EOPNOTSUPP; + break; + } + case SCTP_ADD_VRF_ID: + { + SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EOPNOTSUPP); + error = EOPNOTSUPP; + 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) + sack->sack_delay = SCTP_MAX_SACK_DELAY; + } + if (stcb) { + if (sack->sack_delay) { + if (MSEC_TO_TICKS(sack->sack_delay) < 1) { + sack->sack_delay = TICKS_TO_MSEC(1); + } + stcb->asoc.delayed_ack = sack->sack_delay; + } + if (sack->sack_freq) { + stcb->asoc.sack_freq = sack->sack_freq; + } + SCTP_TCB_UNLOCK(stcb); + } else { + SCTP_INP_WLOCK(inp); + if (sack->sack_delay) { + if (MSEC_TO_TICKS(sack->sack_delay) < 1) { + sack->sack_delay = TICKS_TO_MSEC(1); + } + inp->sctp_ep.sctp_timeoutticks[SCTP_TIMER_RECV] = MSEC_TO_TICKS(sack->sack_delay); + } + if (sack->sack_freq) { + inp->sctp_ep.sctp_sack_freq = sack->sack_freq; + } + SCTP_INP_WUNLOCK(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; + } + 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); + SCTP_FIND_STCB(inp, stcb, sca->sca_assoc_id); + size = optsize - sizeof(*sca); + + if (stcb) { + /* set it on the assoc */ + 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 { + /* set it on the endpoint */ + 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); + } + break; + } + case SCTP_HMAC_IDENT: + { + struct sctp_hmacalgo *shmac; + sctp_hmaclist_t *hmaclist; + uint16_t hmacid; + uint32_t i; + + size_t found; + + SCTP_CHECK_AND_CAST(shmac, optval, struct sctp_hmacalgo, optsize); + if (optsize < sizeof(struct sctp_hmacalgo) + shmac->shmac_number_of_idents * sizeof(uint16_t)) { + SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL); + error = EINVAL; + break; + } + hmaclist = sctp_alloc_hmaclist(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; + } + } + found = 0; + for (i = 0; i < hmaclist->num_algo; i++) { + if (hmaclist->hmac[i] == SCTP_AUTH_HMAC_ID_SHA1) { + /* already in list */ + found = 1; + } + } + if (!found) { + 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 { + /* set the active key on the endpoint */ + 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); + } + 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 { + 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); + } + 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 { + 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); + } + break; + } + + case SCTP_RESET_STREAMS: + { + struct sctp_stream_reset *strrst; + uint8_t send_in = 0, send_tsn = 0, send_out = 0, + addstream = 0; + uint16_t addstrmcnt = 0; + int i; + + SCTP_CHECK_AND_CAST(strrst, optval, struct sctp_stream_reset, optsize); + SCTP_FIND_STCB(inp, stcb, strrst->strrst_assoc_id); + + if (stcb == NULL) { + SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOENT); + error = ENOENT; + break; + } + if (stcb->asoc.peer_supports_strreset == 0) { + /* + * Peer does not support it, we return + * protocol not supported since this is true + * for this feature and this peer, not the + * socket request in general. + */ + SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EPROTONOSUPPORT); + error = EPROTONOSUPPORT; + 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 (strrst->strrst_flags == SCTP_RESET_LOCAL_RECV) { + send_in = 1; + } else if (strrst->strrst_flags == SCTP_RESET_LOCAL_SEND) { + send_out = 1; + } else if (strrst->strrst_flags == SCTP_RESET_BOTH) { + send_in = 1; + send_out = 1; + } else if (strrst->strrst_flags == SCTP_RESET_TSN) { + send_tsn = 1; + } else if (strrst->strrst_flags == SCTP_RESET_ADD_STREAMS) { + if (send_tsn || + send_in || + send_out) { + /* We can't do that and add streams */ + error = EINVAL; + goto skip_stuff; + } + if (stcb->asoc.stream_reset_outstanding) { + error = EBUSY; + goto skip_stuff; + } + addstream = 1; + /* We allocate here */ + addstrmcnt = strrst->strrst_num_streams; + if ((int)(addstrmcnt + stcb->asoc.streamoutcnt) > 0xffff) { + /* You can't have more than 64k */ + error = EINVAL; + goto skip_stuff; + } + if ((stcb->asoc.strm_realoutsize - stcb->asoc.streamoutcnt) < addstrmcnt) { + /* Need to allocate more */ + struct sctp_stream_out *oldstream; + struct sctp_stream_queue_pending *sp; + int removed; + + oldstream = stcb->asoc.strmout; + /* get some more */ + SCTP_MALLOC(stcb->asoc.strmout, struct sctp_stream_out *, + ((stcb->asoc.streamoutcnt + addstrmcnt) * sizeof(struct sctp_stream_out)), + SCTP_M_STRMO); + if (stcb->asoc.strmout == NULL) { + stcb->asoc.strmout = oldstream; + error = ENOMEM; + goto skip_stuff; + } + /* + * Ok now we proceed with copying + * the old out stuff and + * initializing the new stuff. + */ + SCTP_TCB_SEND_LOCK(stcb); + for (i = 0; i < stcb->asoc.streamoutcnt; i++) { + TAILQ_INIT(&stcb->asoc.strmout[i].outqueue); + stcb->asoc.strmout[i].next_sequence_sent = oldstream[i].next_sequence_sent; + stcb->asoc.strmout[i].last_msg_incomplete = oldstream[i].last_msg_incomplete; + stcb->asoc.strmout[i].stream_no = i; + if (oldstream[i].next_spoke.tqe_next) { + sctp_remove_from_wheel(stcb, &stcb->asoc, &oldstream[i], 1); + stcb->asoc.strmout[i].next_spoke.tqe_next = NULL; + stcb->asoc.strmout[i].next_spoke.tqe_prev = NULL; + removed = 1; + } else { + /* not on out wheel */ + stcb->asoc.strmout[i].next_spoke.tqe_next = NULL; + stcb->asoc.strmout[i].next_spoke.tqe_prev = NULL; + removed = 0; + } + /* + * now anything on those + * queues? + */ + while (TAILQ_EMPTY(&oldstream[i].outqueue) == 0) { + sp = TAILQ_FIRST(&oldstream[i].outqueue); + TAILQ_REMOVE(&oldstream[i].outqueue, sp, next); + TAILQ_INSERT_TAIL(&stcb->asoc.strmout[i].outqueue, sp, next); + } + /* Did we disrupt the wheel? */ + if (removed) { + sctp_insert_on_wheel(stcb, + &stcb->asoc, + &stcb->asoc.strmout[i], + 1); + } + /* + * Now move assoc pointers + * too + */ + if (stcb->asoc.last_out_stream == &oldstream[i]) { + stcb->asoc.last_out_stream = &stcb->asoc.strmout[i]; + } + if (stcb->asoc.locked_on_sending == &oldstream[i]) { + stcb->asoc.locked_on_sending = &stcb->asoc.strmout[i]; + } + } + /* now the new streams */ + for (i = stcb->asoc.streamoutcnt; i < (stcb->asoc.streamoutcnt + addstrmcnt); i++) { + stcb->asoc.strmout[i].next_sequence_sent = 0x0; + TAILQ_INIT(&stcb->asoc.strmout[i].outqueue); + stcb->asoc.strmout[i].stream_no = i; + stcb->asoc.strmout[i].last_msg_incomplete = 0; + stcb->asoc.strmout[i].next_spoke.tqe_next = NULL; + stcb->asoc.strmout[i].next_spoke.tqe_prev = NULL; + } + stcb->asoc.strm_realoutsize = stcb->asoc.streamoutcnt + addstrmcnt; + SCTP_FREE(oldstream, SCTP_M_STRMO); + } + SCTP_TCB_SEND_UNLOCK(stcb); + goto skip_stuff; + } else { + SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL); + error = EINVAL; + SCTP_TCB_UNLOCK(stcb); + break; + } + for (i = 0; i < strrst->strrst_num_streams; i++) { + if ((send_in) && + + (strrst->strrst_list[i] > stcb->asoc.streamincnt)) { + SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL); + error = EINVAL; + goto get_out; + } + if ((send_out) && + (strrst->strrst_list[i] > stcb->asoc.streamoutcnt)) { + SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL); + error = EINVAL; + goto get_out; + } + } + skip_stuff: + if (error) { + get_out: + SCTP_TCB_UNLOCK(stcb); + break; + } + error = sctp_send_str_reset_req(stcb, strrst->strrst_num_streams, + strrst->strrst_list, + send_out, (stcb->asoc.str_reset_seq_in - 3), + send_in, send_tsn, addstream, addstrmcnt); + + 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; + struct sctp_nets *net; + + /* 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); + net = sctp_findnet(stcb, sa); + } + 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, &net, 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_9); + 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: + { + uint8_t *burst; + + SCTP_CHECK_AND_CAST(burst, optval, uint8_t, optsize); + + SCTP_INP_WLOCK(inp); + if (*burst) { + inp->sctp_ep.max_burst = *burst; + } + SCTP_INP_WUNLOCK(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 { + 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); + } + } + 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); + 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 (stcb && + 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); + } + if (stcb) { + SCTP_TCB_UNLOCK(stcb); + } + } + } 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); + } + 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; + 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 { + SCTP_INP_WLOCK(inp); + memcpy(&inp->def_send, s_info, min(optsize, sizeof(inp->def_send))); + SCTP_INP_WUNLOCK(inp); + } + } + break; + case SCTP_PEER_ADDR_PARAMS: + /* Applys to the specific association */ + { + struct sctp_paddrparams *paddrp; + struct sctp_nets *net; + + SCTP_CHECK_AND_CAST(paddrp, optval, struct sctp_paddrparams, optsize); + SCTP_FIND_STCB(inp, stcb, paddrp->spp_assoc_id); + net = NULL; + if (stcb) { + net = sctp_findnet(stcb, (struct sockaddr *)&paddrp->spp_address); + } 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, + (struct sockaddr *)&paddrp->spp_address, + &net, NULL, NULL); + if (stcb == NULL) { + SCTP_INP_DECR_REF(inp); + } + } + if (stcb && (net == NULL)) { + struct sockaddr *sa; + + sa = (struct sockaddr *)&paddrp->spp_address; + if (sa->sa_family == AF_INET) { + struct sockaddr_in *sin; + + sin = (struct sockaddr_in *)sa; + if (sin->sin_addr.s_addr) { + SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL); + SCTP_TCB_UNLOCK(stcb); + error = EINVAL; + break; + } + } else if (sa->sa_family == AF_INET6) { + struct sockaddr_in6 *sin6; + + sin6 = (struct sockaddr_in6 *)sa; + 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 { + 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 (stcb) { + /************************TCB SPECIFIC SET ******************/ + /* + * do we change the timer for HB, we run + * only one? + */ + int ovh = 0; + + if (stcb->sctp_ep->sctp_flags & SCTP_PCB_FLAGS_BOUND_V6) { + ovh = SCTP_MED_OVERHEAD; + } else { + ovh = SCTP_MED_V4_OVERHEAD; + } + + if (paddrp->spp_hbinterval) + stcb->asoc.heart_beat_delay = paddrp->spp_hbinterval; + else if (paddrp->spp_flags & SPP_HB_TIME_IS_ZERO) + stcb->asoc.heart_beat_delay = 0; + + /* network sets ? */ + if (net) { + /************************NET SPECIFIC SET ******************/ + if (paddrp->spp_flags & SPP_HB_DEMAND) { + /* on demand HB */ + if (sctp_send_hb(stcb, 1, net) < 0) { + /* asoc destroyed */ + SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL); + error = EINVAL; + break; + } + } + if (paddrp->spp_flags & SPP_HB_DISABLE) { + net->dest_state |= SCTP_ADDR_NOHB; + } + if (paddrp->spp_flags & SPP_HB_ENABLE) { + net->dest_state &= ~SCTP_ADDR_NOHB; + } + if ((paddrp->spp_flags & SPP_PMTUD_DISABLE) && (paddrp->spp_pathmtu >= SCTP_SMALLEST_PMTU)) { + 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_10); + } + if (paddrp->spp_pathmtu > SCTP_DEFAULT_MINSEGMENT) { + net->mtu = paddrp->spp_pathmtu + ovh; + if (net->mtu < stcb->asoc.smallest_mtu) { + sctp_pathmtu_adjustment(inp, stcb, net, 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); + } + } + if (paddrp->spp_pathmaxrxt) + net->failure_threshold = paddrp->spp_pathmaxrxt; +#ifdef INET + if (paddrp->spp_flags & SPP_IPV4_TOS) { + if (net->ro._l_addr.sin.sin_family == AF_INET) { + net->tos_flowlabel = paddrp->spp_ipv4_tos & 0x000000fc; + } + } +#endif +#ifdef INET6 + if (paddrp->spp_flags & SPP_IPV6_FLOWLABEL) { + if (net->ro._l_addr.sin6.sin6_family == AF_INET6) { + net->tos_flowlabel = paddrp->spp_ipv6_flowlabel; + } + } +#endif + } else { + /************************ASSOC ONLY -- NO NET SPECIFIC SET ******************/ + if (paddrp->spp_pathmaxrxt) + stcb->asoc.def_net_failure = paddrp->spp_pathmaxrxt; + + if (paddrp->spp_flags & SPP_HB_ENABLE) { + /* Turn back on the timer */ + stcb->asoc.hb_is_disabled = 0; + sctp_timer_start(SCTP_TIMER_TYPE_HEARTBEAT, inp, stcb, net); + } + if ((paddrp->spp_flags & SPP_PMTUD_DISABLE) && (paddrp->spp_pathmtu >= SCTP_SMALLEST_PMTU)) { + 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_10); + } + if (paddrp->spp_pathmtu > SCTP_DEFAULT_MINSEGMENT) { + net->mtu = paddrp->spp_pathmtu + ovh; + if (net->mtu < stcb->asoc.smallest_mtu) { + sctp_pathmtu_adjustment(inp, stcb, net, net->mtu); + } + } + } + } + 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); + } + } + } + if (paddrp->spp_flags & SPP_HB_DISABLE) { + int cnt_of_unconf = 0; + struct sctp_nets *lnet; + + stcb->asoc.hb_is_disabled = 1; + TAILQ_FOREACH(lnet, &stcb->asoc.nets, sctp_next) { + if (lnet->dest_state & SCTP_ADDR_UNCONFIRMED) { + cnt_of_unconf++; + } + } + /* + * stop the timer ONLY if we + * have no unconfirmed + * addresses + */ + if (cnt_of_unconf == 0) { + TAILQ_FOREACH(net, &stcb->asoc.nets, sctp_next) { + sctp_timer_stop(SCTP_TIMER_TYPE_HEARTBEAT, inp, stcb, net, + SCTP_FROM_SCTP_USRREQ + SCTP_LOC_11); + } + } + } + if (paddrp->spp_flags & SPP_HB_ENABLE) { + /* start up the timer. */ + TAILQ_FOREACH(net, &stcb->asoc.nets, sctp_next) { + sctp_timer_start(SCTP_TIMER_TYPE_HEARTBEAT, inp, stcb, net); + } + } +#ifdef INET + if (paddrp->spp_flags & SPP_IPV4_TOS) + stcb->asoc.default_tos = paddrp->spp_ipv4_tos & 0x000000fc; +#endif +#ifdef INET6 + if (paddrp->spp_flags & SPP_IPV6_FLOWLABEL) + stcb->asoc.default_flowlabel = paddrp->spp_ipv6_flowlabel; +#endif + + } + SCTP_TCB_UNLOCK(stcb); + } else { + /************************NO TCB, SET TO default stuff ******************/ + SCTP_INP_WLOCK(inp); + /* + * For the TOS/FLOWLABEL stuff you set it + * with the options on the socket + */ + if (paddrp->spp_pathmaxrxt) { + 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) { + if (paddrp->spp_hbinterval > SCTP_MAX_HB_INTERVAL) + paddrp->spp_hbinterval = SCTP_MAX_HB_INTERVAL; + inp->sctp_ep.sctp_timeoutticks[SCTP_TIMER_HEARTBEAT] = MSEC_TO_TICKS(paddrp->spp_hbinterval); + } + if (paddrp->spp_flags & SPP_HB_ENABLE) { + 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); + } + SCTP_INP_WUNLOCK(inp); + } + } + 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 { + 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); + } + } + 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) { + /* boundary check the cookie life */ + if (sasoc->sasoc_cookie_life < 1000) + sasoc->sasoc_cookie_life = 1000; + if (sasoc->sasoc_cookie_life > SCTP_MAX_COOKIE_LIFE) { + sasoc->sasoc_cookie_life = SCTP_MAX_COOKIE_LIFE; + } + } + if (stcb) { + if (sasoc->sasoc_asocmaxrxt) + stcb->asoc.max_send_times = sasoc->sasoc_asocmaxrxt; + sasoc->sasoc_number_peer_destinations = stcb->asoc.numnets; + sasoc->sasoc_peer_rwnd = 0; + sasoc->sasoc_local_rwnd = 0; + if (sasoc->sasoc_cookie_life) { + stcb->asoc.cookie_life = MSEC_TO_TICKS(sasoc->sasoc_cookie_life); + } + SCTP_TCB_UNLOCK(stcb); + } else { + SCTP_INP_WLOCK(inp); + if (sasoc->sasoc_asocmaxrxt) + inp->sctp_ep.max_send_times = sasoc->sasoc_asocmaxrxt; + sasoc->sasoc_number_peer_destinations = 0; + sasoc->sasoc_peer_rwnd = 0; + sasoc->sasoc_local_rwnd = 0; + if (sasoc->sasoc_cookie_life) { + inp->sctp_ep.def_cookie_life = MSEC_TO_TICKS(sasoc->sasoc_cookie_life); + } + SCTP_INP_WUNLOCK(inp); + } + } + 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, *lnet; + + SCTP_CHECK_AND_CAST(spa, optval, struct sctp_setprim, optsize); + SCTP_FIND_STCB(inp, stcb, spa->ssp_assoc_id); + + net = NULL; + if (stcb) { + net = sctp_findnet(stcb, (struct sockaddr *)&spa->ssp_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. + */ + SCTP_INP_INCR_REF(inp); + stcb = sctp_findassociation_ep_addr(&inp, + (struct sockaddr *)&spa->ssp_addr, + &net, NULL, NULL); + if (stcb == NULL) { + SCTP_INP_DECR_REF(inp); + } + } + + if ((stcb) && (net)) { + if ((net != stcb->asoc.primary_destination) && + (!(net->dest_state & SCTP_ADDR_UNCONFIRMED))) { + /* Ok we need to set it */ + lnet = stcb->asoc.primary_destination; + if (sctp_set_primary_addr(stcb, (struct sockaddr *)NULL, net) == 0) { + if (net->dest_state & SCTP_ADDR_SWITCH_PRIMARY) { + net->dest_state |= SCTP_ADDR_DOUBLE_SWITCH; + } + net->dest_state |= SCTP_ADDR_SWITCH_PRIMARY; + } + } + } else { + SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL); + error = EINVAL; + } + if (stcb) { + SCTP_TCB_UNLOCK(stcb); + } + } + break; + case SCTP_SET_DYNAMIC_PRIMARY: + { + union sctp_sockstore *ss; + + error = priv_check(curthread, + PRIV_NETINET_RESERVEDPORT); + if (error) + break; + + SCTP_CHECK_AND_CAST(ss, optval, union sctp_sockstore, optsize); + /* SUPER USER CHECK? */ + error = sctp_dynamic_set_primary(&ss->sa, vrf_id); + } + break; + case SCTP_SET_PEER_PRIMARY_ADDR: + { + struct sctp_setpeerprim *sspp; + + 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; + + ifa = sctp_find_ifa_by_addr((struct sockaddr *)&sspp->sspp_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", + __FUNCTION__); + 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 (sctp_set_primary_ip_address_sa(stcb, + (struct sockaddr *)&sspp->sspp_addr) != 0) { + SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL); + error = EINVAL; + } + 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 sctp_getaddresses *addrs; + size_t sz; + struct thread *td; + + td = (struct thread *)p; + SCTP_CHECK_AND_CAST(addrs, optval, struct sctp_getaddresses, + optsize); + if (addrs->addr->sa_family == AF_INET) { + sz = sizeof(struct sctp_getaddresses) - sizeof(struct sockaddr) + sizeof(struct sockaddr_in); + if (optsize < sz) { + SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL); + error = EINVAL; + break; + } + if (td != NULL && (error = prison_local_ip4(td->td_ucred, &(((struct sockaddr_in *)(addrs->addr))->sin_addr)))) { + SCTP_LTRACE_ERR_RET(inp, stcb, NULL, SCTP_FROM_SCTP_USRREQ, error); + break; + } +#ifdef INET6 + } else if (addrs->addr->sa_family == AF_INET6) { + sz = sizeof(struct sctp_getaddresses) - sizeof(struct sockaddr) + sizeof(struct sockaddr_in6); + if (optsize < sz) { + SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL); + error = EINVAL; + break; + } + if (td != NULL && (error = prison_local_ip6(td->td_ucred, &(((struct sockaddr_in6 *)(addrs->addr))->sin6_addr), + (SCTP_IPV6_V6ONLY(inp) != 0))) != 0) { + SCTP_LTRACE_ERR_RET(inp, stcb, NULL, SCTP_FROM_SCTP_USRREQ, error); + break; + } +#endif + } else { + error = EAFNOSUPPORT; + break; + } + sctp_bindx_add_address(so, inp, addrs->addr, + addrs->sget_assoc_id, vrf_id, + &error, p); + } + break; + case SCTP_BINDX_REM_ADDR: + { + struct sctp_getaddresses *addrs; + size_t sz; + struct thread *td; + + td = (struct thread *)p; + + SCTP_CHECK_AND_CAST(addrs, optval, struct sctp_getaddresses, optsize); + if (addrs->addr->sa_family == AF_INET) { + sz = sizeof(struct sctp_getaddresses) - sizeof(struct sockaddr) + sizeof(struct sockaddr_in); + if (optsize < sz) { + SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL); + error = EINVAL; + break; + } + if (td != NULL && (error = prison_local_ip4(td->td_ucred, &(((struct sockaddr_in *)(addrs->addr))->sin_addr)))) { + SCTP_LTRACE_ERR_RET(inp, stcb, NULL, SCTP_FROM_SCTP_USRREQ, error); + break; + } +#ifdef INET6 + } else if (addrs->addr->sa_family == AF_INET6) { + sz = sizeof(struct sctp_getaddresses) - sizeof(struct sockaddr) + sizeof(struct sockaddr_in6); + if (optsize < sz) { + SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL); + error = EINVAL; + break; + } + if (td != NULL && (error = prison_local_ip6(td->td_ucred, &(((struct sockaddr_in6 *)(addrs->addr))->sin6_addr), + (SCTP_IPV6_V6ONLY(inp) != 0))) != 0) { + SCTP_LTRACE_ERR_RET(inp, stcb, NULL, SCTP_FROM_SCTP_USRREQ, error); + break; + } +#endif + } else { + error = EAFNOSUPPORT; + break; + } + sctp_bindx_delete_address(so, inp, addrs->addr, + addrs->sget_assoc_id, vrf_id, + &error); + } + break; + default: + SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOPROTOOPT); + error = ENOPROTOOPT; + break; + } /* end switch (opt) */ + return (error); +} + +int +sctp_ctloutput(struct socket *so, struct sockopt *sopt) +{ + void *optval = NULL; + size_t optsize = 0; + struct sctp_inpcb *inp; + void *p; + int error = 0; + + inp = (struct sctp_inpcb *)so->so_pcb; + if (inp == 0) { + /* 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 (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); + else +#endif /* INET6 */ + error = ip_ctloutput(so, sopt); + return (error); + } + optsize = sopt->sopt_valsize; + if (optsize) { + SCTP_MALLOC(optval, void *, optsize, SCTP_M_SOCKOPT); + if (optval == NULL) { + SCTP_LTRACE_ERR_RET(inp, 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; + } + } + p = (void *)sopt->sopt_td; + if (sopt->sopt_dir == SOPT_SET) { + error = sctp_setopt(so, sopt->sopt_name, optval, optsize, p); + } else if (sopt->sopt_dir == SOPT_GET) { + error = sctp_getopt(so, sopt->sopt_name, optval, &optsize, p); + } else { + SCTP_LTRACE_ERR_RET(inp, 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); +} + + +static int +sctp_connect(struct socket *so, struct sockaddr *addr, struct thread *p) +{ + 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 == 0) { + /* 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; + } +#ifdef INET6 + if (addr->sa_family == AF_INET6) { + struct sockaddr_in6 *sin6p; + + if (addr->sa_len != sizeof(struct sockaddr_in6)) { + SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL); + return (EINVAL); + } + sin6p = (struct sockaddr_in6 *)addr; + if (p != NULL && (error = prison_remote_ip6(p->td_ucred, &sin6p->sin6_addr)) != 0) { + SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error); + return (error); + } + } else +#endif + if (addr->sa_family == AF_INET) { + struct sockaddr_in *sinp; + + if (addr->sa_len != sizeof(struct sockaddr_in)) { + SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL); + return (EINVAL); + } + sinp = (struct sockaddr_in *)addr; + if (p != NULL && (error = prison_remote_ip4(p->td_ucred, &sinp->sin_addr)) != 0) { + SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error); + return (error); + } + } else { + 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 /* 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; + } + } + /* 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; + /* We are GOOD to go */ + stcb = sctp_aloc_assoc(inp, addr, &error, 0, vrf_id, p); + 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 */ + SOCKBUF_LOCK(&so->so_rcv); + so->so_rcv.sb_state &= ~SBS_CANTRCVMORE; + SOCKBUF_UNLOCK(&so->so_rcv); + SOCKBUF_LOCK(&so->so_snd); + so->so_snd.sb_state &= ~SBS_CANTSENDMORE; + SOCKBUF_UNLOCK(&so->so_snd); + SOCK_LOCK(so); + so->so_state &= ~SS_ISDISCONNECTING; + SOCK_UNLOCK(so); + soisconnecting(so); + } + SCTP_SET_STATE(&stcb->asoc, SCTP_STATE_COOKIE_WAIT); + (void)SCTP_GETTIME_TIMEVAL(&stcb->asoc.time_entered); + + /* initialize authentication parameters for the assoc */ + sctp_initialize_auth_params(inp, stcb); + + 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; +} + +int +sctp_listen(struct socket *so, int backlog, struct thread *p) +{ + /* + * 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 == 0) { + /* 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, *sp; + + sp = &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)); + sp->sin.sin_port = inp->sctp_lport; + tinp = sctp_pcb_findep(&sp->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) && + (tinp->sctp_socket->so_qlimit)) { + /* + * 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)); + store.sin.sin_port = inp->sctp_lport; +#ifdef INET6 + if (inp->sctp_flags & SCTP_PCB_FLAGS_BOUND_V6) { + store.sa.sa_family = AF_INET6; + store.sa.sa_len = sizeof(struct sockaddr_in6); + } +#endif + if ((inp->sctp_flags & SCTP_PCB_FLAGS_BOUND_V6) == 0) { + store.sa.sa_family = AF_INET; + store.sa.sa_len = sizeof(struct sockaddr_in); + } + tinp = sctp_pcb_findep(&sp->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) && + (tinp->sctp_socket->so_qlimit)) { + /* + * we have a listener already and its not + * this inp. + */ + SCTP_INP_DECR_REF(tinp); + return (EADDRINUSE); + } else if (tinp) { + SCTP_INP_DECR_REF(inp); + } + } + } + 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 + SOCK_LOCK(so); + error = solisten_proto_check(so); + if (error) { + SOCK_UNLOCK(so); + SCTP_INP_RUNLOCK(inp); + return (error); + } + 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)) { + goto in_use; + } + } + if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) && + (inp->sctp_flags & SCTP_PCB_FLAGS_CONNECTED)) { + /* We are already connected AND the TCP model */ +in_use: + SCTP_INP_RUNLOCK(inp); + SOCK_UNLOCK(so); + 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. */ + SOCK_UNLOCK(so); + if ((error = sctp_inpcb_bind(so, NULL, NULL, p))) { + /* bind error, probably perm */ + return (error); + } + SOCK_LOCK(so); + } + /* It appears for 7.0 and on, we must always call this. */ + solisten_proto(so, backlog); + if (inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) { + /* remove the ACCEPTCONN flag for one-to-many sockets */ + so->so_options &= ~SO_ACCEPTCONN; + } + if (backlog == 0) { + /* turning off listen */ + so->so_options &= ~SO_ACCEPTCONN; + } + SOCK_UNLOCK(so); + 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 + int error; + +#endif + inp = (struct sctp_inpcb *)so->so_pcb; + + if (inp == 0) { + SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL); + return (ECONNRESET); + } + SCTP_INP_RLOCK(inp); + if (inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) { + SCTP_INP_RUNLOCK(inp); + SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EOPNOTSUPP); + return (EOPNOTSUPP); + } + if (so->so_state & SS_ISDISCONNECTED) { + SCTP_INP_RUNLOCK(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_RUNLOCK(inp); + SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL); + return (ECONNRESET); + } + SCTP_TCB_LOCK(stcb); + SCTP_INP_RUNLOCK(inp); + store = stcb->asoc.primary_destination->ro._l_addr; + stcb->asoc.state &= ~SCTP_STATE_IN_ACCEPT_QUEUE; + SCTP_TCB_UNLOCK(stcb); + switch (store.sa.sa_family) { + 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; + sin->sin_len = sizeof(*sin); + sin->sin_port = ((struct sockaddr_in *)&store)->sin_port; + sin->sin_addr = ((struct sockaddr_in *)&store)->sin_addr; + *addr = (struct sockaddr *)sin; + break; + } +#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; + sin6->sin6_len = sizeof(*sin6); + sin6->sin6_port = ((struct sockaddr_in6 *)&store)->sin6_port; + + sin6->sin6_addr = ((struct sockaddr_in6 *)&store)->sin6_addr; + if ((error = sa6_recoverscope(sin6)) != 0) { + SCTP_FREE_SONAME(sin6); + return (error); + } + *addr = (struct sockaddr *)sin6; + break; + } +#endif + default: + /* TSNH */ + break; + } + /* Wake any delayed sleep action */ + if (inp->sctp_flags & SCTP_PCB_FLAGS_DONT_WAKE) { + SCTP_INP_WLOCK(inp); + inp->sctp_flags &= ~SCTP_PCB_FLAGS_DONT_WAKE; + if (inp->sctp_flags & SCTP_PCB_FLAGS_WAKEOUTPUT) { + inp->sctp_flags &= ~SCTP_PCB_FLAGS_WAKEOUTPUT; + SCTP_INP_WUNLOCK(inp); + SOCKBUF_LOCK(&inp->sctp_socket->so_snd); + if (sowriteable(inp->sctp_socket)) { + sowwakeup_locked(inp->sctp_socket); + } else { + SOCKBUF_UNLOCK(&inp->sctp_socket->so_snd); + } + SCTP_INP_WLOCK(inp); + } + if (inp->sctp_flags & SCTP_PCB_FLAGS_WAKEINPUT) { + inp->sctp_flags &= ~SCTP_PCB_FLAGS_WAKEINPUT; + SCTP_INP_WUNLOCK(inp); + SOCKBUF_LOCK(&inp->sctp_socket->so_rcv); + if (soreadable(inp->sctp_socket)) { + sctp_defered_wakeup_cnt++; + sorwakeup_locked(inp->sctp_socket); + } else { + SOCKBUF_UNLOCK(&inp->sctp_socket->so_rcv); + } + SCTP_INP_WLOCK(inp); + } + SCTP_INP_WUNLOCK(inp); + } + if (stcb->asoc.state & SCTP_STATE_ABOUT_TO_BE_FREED) { + SCTP_TCB_LOCK(stcb); + sctp_free_assoc(inp, stcb, SCTP_NORMAL_PROC, SCTP_FROM_SCTP_USRREQ + SCTP_LOC_7); + } + return (0); +} + +int +sctp_ingetaddr(struct socket *so, struct sockaddr **addr) +{ + struct sockaddr_in *sin; + uint32_t vrf_id; + struct sctp_inpcb *inp; + struct sctp_ifa *sctp_ifa; + + /* + * Do the malloc first in case it blocks. + */ + SCTP_MALLOC_SONAME(sin, struct sockaddr_in *, sizeof *sin); + if (sin == NULL) + return (ENOMEM); + sin->sin_family = AF_INET; + sin->sin_len = sizeof(*sin); + inp = (struct sctp_inpcb *)so->so_pcb; + if (!inp) { + SCTP_FREE_SONAME(sin); + 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 = (struct sockaddr_in *)&laddr->ifa->address.sa; + sin->sin_addr = sin_a->sin_addr; + fnd = 1; + break; + } + } + if (!fnd) { + SCTP_FREE_SONAME(sin); + SCTP_INP_RUNLOCK(inp); + SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOENT); + return ENOENT; + } + } + SCTP_INP_RUNLOCK(inp); + (*addr) = (struct sockaddr *)sin; + return (0); +} + +int +sctp_peeraddr(struct socket *so, struct sockaddr **addr) +{ + struct sockaddr_in *sin = (struct sockaddr_in *)*addr; + 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. */ + 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 */ + SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOTCONN); + return (ENOTCONN); + } + SCTP_MALLOC_SONAME(sin, struct sockaddr_in *, sizeof *sin); + if (sin == NULL) + return (ENOMEM); + sin->sin_family = AF_INET; + sin->sin_len = sizeof(*sin); + + /* We must recapture incase we blocked */ + inp = (struct sctp_inpcb *)so->so_pcb; + if (!inp) { + SCTP_FREE_SONAME(sin); + SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL); + return ECONNRESET; + } + SCTP_INP_RLOCK(inp); + stcb = LIST_FIRST(&inp->sctp_asoc_list); + if (stcb) { + SCTP_TCB_LOCK(stcb); + } + SCTP_INP_RUNLOCK(inp); + if (stcb == NULL) { + SCTP_FREE_SONAME(sin); + 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 */ + SCTP_FREE_SONAME(sin); + SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOENT); + return ENOENT; + } + (*addr) = (struct sockaddr *)sin; + return (0); +} + +struct pr_usrreqs sctp_usrreqs = { + .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 +}; -- cgit v1.2.3