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code.illumos.org / illumos-gate / bd670b35a010421b6e1a5536c34453a827007c81 / . / usr / src / uts / common / inet / sctp / sctp_opt_data.c
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/*
* CDDL HEADER START
*
* The contents of this file are subject to the terms of the
* Common Development and Distribution License (the "License").
* You may not use this file except in compliance with the License.
*
* You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
* or http://www.opensolaris.org/os/licensing.
* See the License for the specific language governing permissions
* and limitations under the License.
*
* When distributing Covered Code, include this CDDL HEADER in each
* file and include the License file at usr/src/OPENSOLARIS.LICENSE.
* If applicable, add the following below this CDDL HEADER, with the
* fields enclosed by brackets "[]" replaced with your own identifying
* information: Portions Copyright [yyyy] [name of copyright owner]
*
* CDDL HEADER END
*/
/*
* Copyright 2009 Sun Microsystems, Inc. All rights reserved.
* Use is subject to license terms.
*/
#include <sys/types.h>
#include <sys/stream.h>
#define _SUN_TPI_VERSION 2
#include <sys/tihdr.h>
#include <sys/socket.h>
#include <sys/xti_inet.h>
#include <sys/systm.h>
#include <sys/ddi.h>
#include <sys/sunddi.h>
#include <sys/kmem.h>
#include <sys/strsubr.h>
#include <sys/strsun.h>
#include <sys/policy.h>
#include <inet/common.h>
#include <netinet/ip6.h>
#include <inet/ip.h>
#include <inet/ip_ire.h>
#include <inet/ip_if.h>
#include <inet/proto_set.h>
#include <inet/ipclassifier.h>
#include <inet/ipsec_impl.h>
#include <netinet/in.h>
#include <netinet/ip.h>
#include <netinet/tcp.h>
#include <inet/common.h>
#include <inet/ip.h>
#include <inet/ip6.h>
#include <inet/sctp_itf.h>
#include "sctp_impl.h"
#include "sctp_asconf.h"
#include "sctp_addr.h"
static int sctp_getpeeraddrs(sctp_t *, void *, int *);
static int
sctp_get_status(sctp_t *sctp, void *ptr)
{
struct sctp_status *sstat = ptr;
sctp_faddr_t *fp;
struct sockaddr_in *sin;
struct sockaddr_in6 *sin6;
struct sctp_paddrinfo *sp;
mblk_t *meta, *mp;
int i;
conn_t *connp = sctp->sctp_connp;
sstat->sstat_state = sctp->sctp_state;
sstat->sstat_rwnd = sctp->sctp_frwnd;
sp = &sstat->sstat_primary;
if (!sctp->sctp_primary) {
bzero(sp, sizeof (*sp));
goto noprim;
}
fp = sctp->sctp_primary;
if (fp->isv4) {
sin = (struct sockaddr_in *)&sp->spinfo_address;
sin->sin_family = AF_INET;
sin->sin_port = connp->conn_fport;
IN6_V4MAPPED_TO_INADDR(&fp->faddr, &sin->sin_addr);
sp->spinfo_mtu = sctp->sctp_hdr_len;
} else {
sin6 = (struct sockaddr_in6 *)&sp->spinfo_address;
sin6->sin6_family = AF_INET6;
sin6->sin6_port = connp->conn_fport;
sin6->sin6_addr = fp->faddr;
sp->spinfo_mtu = sctp->sctp_hdr6_len;
}
sp->spinfo_state = fp->state == SCTP_FADDRS_ALIVE ? SCTP_ACTIVE :
SCTP_INACTIVE;
sp->spinfo_cwnd = fp->cwnd;
sp->spinfo_srtt = fp->srtt;
sp->spinfo_rto = fp->rto;
sp->spinfo_mtu += fp->sfa_pmss;
noprim:
sstat->sstat_unackdata = 0;
sstat->sstat_penddata = 0;
sstat->sstat_instrms = sctp->sctp_num_istr;
sstat->sstat_outstrms = sctp->sctp_num_ostr;
sstat->sstat_fragmentation_point = sctp->sctp_mss -
sizeof (sctp_data_hdr_t);
/* count unack'd */
for (meta = sctp->sctp_xmit_head; meta; meta = meta->b_next) {
for (mp = meta->b_cont; mp; mp = mp->b_next) {
if (!SCTP_CHUNK_ISSENT(mp)) {
break;
}
if (!SCTP_CHUNK_ISACKED(mp)) {
sstat->sstat_unackdata++;
}
}
}
/*
* Count penddata chunks. We can only count chunks in SCTP (not
* data already delivered to socket layer).
*/
if (sctp->sctp_instr != NULL) {
for (i = 0; i < sctp->sctp_num_istr; i++) {
for (meta = sctp->sctp_instr[i].istr_reass;
meta != NULL; meta = meta->b_next) {
for (mp = meta->b_cont; mp; mp = mp->b_cont) {
if (DB_TYPE(mp) != M_CTL) {
sstat->sstat_penddata++;
}
}
}
}
}
/* Un-Ordered Frag list */
for (meta = sctp->sctp_uo_frags; meta != NULL; meta = meta->b_next)
sstat->sstat_penddata++;
return (sizeof (*sstat));
}
/*
* SCTP_GET_PEER_ADDR_INFO
*/
static int
sctp_get_paddrinfo(sctp_t *sctp, void *ptr, socklen_t *optlen)
{
struct sctp_paddrinfo *infop = ptr;
struct sockaddr_in *sin4;
struct sockaddr_in6 *sin6;
in6_addr_t faddr;
sctp_faddr_t *fp;
switch (infop->spinfo_address.ss_family) {
case AF_INET:
sin4 = (struct sockaddr_in *)&infop->spinfo_address;
IN6_INADDR_TO_V4MAPPED(&sin4->sin_addr, &faddr);
break;
case AF_INET6:
sin6 = (struct sockaddr_in6 *)&infop->spinfo_address;
faddr = sin6->sin6_addr;
break;
default:
return (EAFNOSUPPORT);
}
if ((fp = sctp_lookup_faddr(sctp, &faddr)) == NULL)
return (EINVAL);
infop->spinfo_state = (fp->state == SCTP_FADDRS_ALIVE) ? SCTP_ACTIVE :
SCTP_INACTIVE;
infop->spinfo_cwnd = fp->cwnd;
infop->spinfo_srtt = TICK_TO_MSEC(fp->srtt);
infop->spinfo_rto = TICK_TO_MSEC(fp->rto);
infop->spinfo_mtu = fp->sfa_pmss;
*optlen = sizeof (struct sctp_paddrinfo);
return (0);
}
/*
* SCTP_RTOINFO
*/
static int
sctp_get_rtoinfo(sctp_t *sctp, void *ptr)
{
struct sctp_rtoinfo *srto = ptr;
srto->srto_initial = TICK_TO_MSEC(sctp->sctp_rto_initial);
srto->srto_max = TICK_TO_MSEC(sctp->sctp_rto_max);
srto->srto_min = TICK_TO_MSEC(sctp->sctp_rto_min);
return (sizeof (*srto));
}
static int
sctp_set_rtoinfo(sctp_t *sctp, const void *invalp)
{
const struct sctp_rtoinfo *srto;
boolean_t ispriv;
sctp_stack_t *sctps = sctp->sctp_sctps;
conn_t *connp = sctp->sctp_connp;
srto = invalp;
ispriv = secpolicy_ip_config(connp->conn_cred, B_TRUE) == 0;
/*
* Bounds checking. Priviledged user can set the RTO initial
* outside the ndd boundary.
*/
if (srto->srto_initial != 0 &&
(!ispriv && (srto->srto_initial < sctps->sctps_rto_initialg_low ||
srto->srto_initial > sctps->sctps_rto_initialg_high))) {
return (EINVAL);
}
if (srto->srto_max != 0 &&
(!ispriv && (srto->srto_max < sctps->sctps_rto_maxg_low ||
srto->srto_max > sctps->sctps_rto_maxg_high))) {
return (EINVAL);
}
if (srto->srto_min != 0 &&
(!ispriv && (srto->srto_min < sctps->sctps_rto_ming_low ||
srto->srto_min > sctps->sctps_rto_ming_high))) {
return (EINVAL);
}
if (srto->srto_initial != 0) {
sctp->sctp_rto_initial = MSEC_TO_TICK(srto->srto_initial);
}
if (srto->srto_max != 0) {
sctp->sctp_rto_max = MSEC_TO_TICK(srto->srto_max);
}
if (srto->srto_min != 0) {
sctp->sctp_rto_min = MSEC_TO_TICK(srto->srto_min);
}
return (0);
}
/*
* SCTP_ASSOCINFO
*/
static int
sctp_get_assocparams(sctp_t *sctp, void *ptr)
{
struct sctp_assocparams *sap = ptr;
sctp_faddr_t *fp;
uint16_t i;
sap->sasoc_asocmaxrxt = sctp->sctp_pa_max_rxt;
/*
* Count the number of peer addresses
*/
for (i = 0, fp = sctp->sctp_faddrs; fp != NULL; fp = fp->next) {
i++;
}
sap->sasoc_number_peer_destinations = i;
sap->sasoc_peer_rwnd = sctp->sctp_frwnd;
sap->sasoc_local_rwnd = sctp->sctp_rwnd;
sap->sasoc_cookie_life = TICK_TO_MSEC(sctp->sctp_cookie_lifetime);
return (sizeof (*sap));
}
static int
sctp_set_assocparams(sctp_t *sctp, const void *invalp)
{
const struct sctp_assocparams *sap = invalp;
uint32_t sum = 0;
sctp_faddr_t *fp;
sctp_stack_t *sctps = sctp->sctp_sctps;
if (sap->sasoc_asocmaxrxt) {
if (sctp->sctp_faddrs) {
/*
* Bounds check: as per rfc2960, assoc max retr cannot
* exceed the sum of all individual path max retr's.
*/
for (fp = sctp->sctp_faddrs; fp; fp = fp->next) {
sum += fp->max_retr;
}
if (sap->sasoc_asocmaxrxt > sum) {
return (EINVAL);
}
}
if (sap->sasoc_asocmaxrxt < sctps->sctps_pa_max_retr_low ||
sap->sasoc_asocmaxrxt > sctps->sctps_pa_max_retr_high) {
/*
* Out of bounds.
*/
return (EINVAL);
}
}
if (sap->sasoc_cookie_life != 0 &&
(sap->sasoc_cookie_life < sctps->sctps_cookie_life_low ||
sap->sasoc_cookie_life > sctps->sctps_cookie_life_high)) {
return (EINVAL);
}
if (sap->sasoc_asocmaxrxt > 0) {
sctp->sctp_pa_max_rxt = sap->sasoc_asocmaxrxt;
}
if (sap->sasoc_cookie_life > 0) {
sctp->sctp_cookie_lifetime = MSEC_TO_TICK(
sap->sasoc_cookie_life);
}
return (0);
}
/*
* SCTP_INITMSG
*/
static int
sctp_get_initmsg(sctp_t *sctp, void *ptr)
{
struct sctp_initmsg *si = ptr;
si->sinit_num_ostreams = sctp->sctp_num_ostr;
si->sinit_max_instreams = sctp->sctp_num_istr;
si->sinit_max_attempts = sctp->sctp_max_init_rxt;
si->sinit_max_init_timeo = TICK_TO_MSEC(sctp->sctp_init_rto_max);
return (sizeof (*si));
}
static int
sctp_set_initmsg(sctp_t *sctp, const void *invalp, uint_t inlen)
{
const struct sctp_initmsg *si = invalp;
sctp_stack_t *sctps = sctp->sctp_sctps;
conn_t *connp = sctp->sctp_connp;
if (sctp->sctp_state > SCTPS_LISTEN) {
return (EINVAL);
}
if (inlen < sizeof (*si)) {
return (EINVAL);
}
if (si->sinit_num_ostreams != 0 &&
(si->sinit_num_ostreams < sctps->sctps_initial_out_streams_low ||
si->sinit_num_ostreams >
sctps->sctps_initial_out_streams_high)) {
/*
* Out of bounds.
*/
return (EINVAL);
}
if (si->sinit_max_instreams != 0 &&
(si->sinit_max_instreams < sctps->sctps_max_in_streams_low ||
si->sinit_max_instreams > sctps->sctps_max_in_streams_high)) {
return (EINVAL);
}
if (si->sinit_max_attempts != 0 &&
(si->sinit_max_attempts < sctps->sctps_max_init_retr_low ||
si->sinit_max_attempts > sctps->sctps_max_init_retr_high)) {
return (EINVAL);
}
if (si->sinit_max_init_timeo != 0 &&
(secpolicy_ip_config(connp->conn_cred, B_TRUE) != 0 &&
(si->sinit_max_init_timeo < sctps->sctps_rto_maxg_low ||
si->sinit_max_init_timeo > sctps->sctps_rto_maxg_high))) {
return (EINVAL);
}
if (si->sinit_num_ostreams != 0)
sctp->sctp_num_ostr = si->sinit_num_ostreams;
if (si->sinit_max_instreams != 0)
sctp->sctp_num_istr = si->sinit_max_instreams;
if (si->sinit_max_attempts != 0)
sctp->sctp_max_init_rxt = si->sinit_max_attempts;
if (si->sinit_max_init_timeo != 0) {
sctp->sctp_init_rto_max =
MSEC_TO_TICK(si->sinit_max_init_timeo);
}
return (0);
}
/*
* SCTP_PEER_ADDR_PARAMS
*/
static int
sctp_find_peer_fp(sctp_t *sctp, const struct sockaddr_storage *ss,
sctp_faddr_t **fpp)
{
struct sockaddr_in *sin;
struct sockaddr_in6 *sin6;
in6_addr_t addr;
if (ss->ss_family == AF_INET) {
sin = (struct sockaddr_in *)ss;
IN6_IPADDR_TO_V4MAPPED(sin->sin_addr.s_addr, &addr);
} else if (ss->ss_family == AF_INET6) {
sin6 = (struct sockaddr_in6 *)ss;
addr = sin6->sin6_addr;
} else if (ss->ss_family) {
return (EAFNOSUPPORT);
}
if (!ss->ss_family ||
SCTP_IS_ADDR_UNSPEC(IN6_IS_ADDR_V4MAPPED(&addr), addr)) {
*fpp = NULL;
} else {
*fpp = sctp_lookup_faddr(sctp, &addr);
if (*fpp == NULL) {
return (EINVAL);
}
}
return (0);
}
static int
sctp_get_peer_addr_params(sctp_t *sctp, void *ptr)
{
struct sctp_paddrparams *spp = ptr;
sctp_faddr_t *fp;
int retval;
retval = sctp_find_peer_fp(sctp, &spp->spp_address, &fp);
if (retval) {
return (retval);
}
if (fp) {
spp->spp_hbinterval = TICK_TO_MSEC(fp->hb_interval);
spp->spp_pathmaxrxt = fp->max_retr;
} else {
spp->spp_hbinterval = TICK_TO_MSEC(sctp->sctp_hb_interval);
spp->spp_pathmaxrxt = sctp->sctp_pp_max_rxt;
}
return (sizeof (*spp));
}
static int
sctp_set_peer_addr_params(sctp_t *sctp, const void *invalp)
{
const struct sctp_paddrparams *spp = invalp;
sctp_faddr_t *fp, *fp2;
int retval;
uint32_t sum = 0;
int64_t now;
sctp_stack_t *sctps = sctp->sctp_sctps;
retval = sctp_find_peer_fp(sctp, &spp->spp_address, &fp);
if (retval != 0) {
return (retval);
}
if (spp->spp_hbinterval && spp->spp_hbinterval != UINT32_MAX &&
(spp->spp_hbinterval < sctps->sctps_heartbeat_interval_low ||
spp->spp_hbinterval > sctps->sctps_heartbeat_interval_high)) {
return (EINVAL);
}
if (spp->spp_pathmaxrxt &&
(spp->spp_pathmaxrxt < sctps->sctps_pp_max_retr_low ||
spp->spp_pathmaxrxt > sctps->sctps_pp_max_retr_high)) {
return (EINVAL);
}
if (spp->spp_pathmaxrxt && sctp->sctp_faddrs) {
for (fp2 = sctp->sctp_faddrs; fp2; fp2 = fp2->next) {
if (!fp || fp2 == fp) {
sum += spp->spp_pathmaxrxt;
} else {
sum += fp2->max_retr;
}
}
if (sctp->sctp_pa_max_rxt > sum) {
return (EINVAL);
}
}
now = lbolt64;
if (fp != NULL) {
if (spp->spp_hbinterval == UINT32_MAX) {
/*
* Send heartbeat immediatelly, don't modify the
* current setting.
*/
sctp_send_heartbeat(sctp, fp);
} else {
fp->hb_interval = MSEC_TO_TICK(spp->spp_hbinterval);
fp->hb_expiry = now + SET_HB_INTVL(fp);
/*
* Restart the heartbeat timer using the new intrvl.
* We need to call sctp_heartbeat_timer() to set
* the earliest heartbeat expiry time.
*/
sctp_heartbeat_timer(sctp);
}
if (spp->spp_pathmaxrxt) {
fp->max_retr = spp->spp_pathmaxrxt;
}
} else {
for (fp2 = sctp->sctp_faddrs; fp2 != NULL; fp2 = fp2->next) {
if (spp->spp_hbinterval == UINT32_MAX) {
/*
* Send heartbeat immediatelly, don't modify
* the current setting.
*/
sctp_send_heartbeat(sctp, fp2);
} else {
fp2->hb_interval = MSEC_TO_TICK(
spp->spp_hbinterval);
fp2->hb_expiry = now + SET_HB_INTVL(fp2);
}
if (spp->spp_pathmaxrxt) {
fp2->max_retr = spp->spp_pathmaxrxt;
}
}
if (spp->spp_hbinterval != UINT32_MAX) {
sctp->sctp_hb_interval = MSEC_TO_TICK(
spp->spp_hbinterval);
/* Restart the heartbeat timer using the new intrvl. */
sctp_timer(sctp, sctp->sctp_heartbeat_mp,
sctp->sctp_hb_interval);
}
if (spp->spp_pathmaxrxt) {
sctp->sctp_pp_max_rxt = spp->spp_pathmaxrxt;
}
}
return (0);
}
/*
* SCTP_DEFAULT_SEND_PARAM
*/
static int
sctp_get_def_send_params(sctp_t *sctp, void *ptr)
{
struct sctp_sndrcvinfo *sinfo = ptr;
sinfo->sinfo_stream = sctp->sctp_def_stream;
sinfo->sinfo_ssn = 0;
sinfo->sinfo_flags = sctp->sctp_def_flags;
sinfo->sinfo_ppid = sctp->sctp_def_ppid;
sinfo->sinfo_context = sctp->sctp_def_context;
sinfo->sinfo_timetolive = sctp->sctp_def_timetolive;
sinfo->sinfo_tsn = 0;
sinfo->sinfo_cumtsn = 0;
return (sizeof (*sinfo));
}
static int
sctp_set_def_send_params(sctp_t *sctp, const void *invalp)
{
const struct sctp_sndrcvinfo *sinfo = invalp;
if (sinfo->sinfo_stream >= sctp->sctp_num_ostr) {
return (EINVAL);
}
sctp->sctp_def_stream = sinfo->sinfo_stream;
sctp->sctp_def_flags = sinfo->sinfo_flags;
sctp->sctp_def_ppid = sinfo->sinfo_ppid;
sctp->sctp_def_context = sinfo->sinfo_context;
sctp->sctp_def_timetolive = sinfo->sinfo_timetolive;
return (0);
}
static int
sctp_set_prim(sctp_t *sctp, const void *invalp)
{
const struct sctp_setpeerprim *pp = invalp;
int retval;
sctp_faddr_t *fp;
retval = sctp_find_peer_fp(sctp, &pp->sspp_addr, &fp);
if (retval)
return (retval);
if (fp == NULL)
return (EINVAL);
if (fp == sctp->sctp_primary)
return (0);
sctp->sctp_primary = fp;
/* Only switch current if fp is alive */
if (fp->state != SCTP_FADDRS_ALIVE || fp == sctp->sctp_current) {
return (0);
}
sctp_set_faddr_current(sctp, fp);
return (0);
}
/*
* Table of all known options handled on a SCTP protocol stack.
*
* Note: This table contains options processed by both SCTP and IP levels
* and is the superset of options that can be performed on a SCTP and IP
* stack.
*/
opdes_t sctp_opt_arr[] = {
{ SO_LINGER, SOL_SOCKET, OA_RW, OA_RW, OP_NP, 0,
sizeof (struct linger), 0 },
{ SO_DEBUG, SOL_SOCKET, OA_RW, OA_RW, OP_NP, 0, sizeof (int), 0 },
{ SO_KEEPALIVE, SOL_SOCKET, OA_RW, OA_RW, OP_NP, 0, sizeof (int), 0 },
{ SO_DONTROUTE, SOL_SOCKET, OA_RW, OA_RW, OP_NP, 0, sizeof (int), 0 },
{ SO_USELOOPBACK, SOL_SOCKET, OA_RW, OA_RW, OP_NP, 0, sizeof (int), 0
},
{ SO_BROADCAST, SOL_SOCKET, OA_RW, OA_RW, OP_NP, 0, sizeof (int), 0 },
{ SO_REUSEADDR, SOL_SOCKET, OA_RW, OA_RW, OP_NP, 0, sizeof (int), 0 },
{ SO_OOBINLINE, SOL_SOCKET, OA_RW, OA_RW, OP_NP, 0, sizeof (int), 0 },
{ SO_TYPE, SOL_SOCKET, OA_R, OA_R, OP_NP, 0, sizeof (int), 0 },
{ SO_SNDBUF, SOL_SOCKET, OA_RW, OA_RW, OP_NP, 0, sizeof (int), 0 },
{ SO_RCVBUF, SOL_SOCKET, OA_RW, OA_RW, OP_NP, 0, sizeof (int), 0 },
{ SO_DGRAM_ERRIND, SOL_SOCKET, OA_RW, OA_RW, OP_NP, 0, sizeof (int), 0
},
{ SO_SND_COPYAVOID, SOL_SOCKET, OA_RW, OA_RW, OP_NP, 0, sizeof (int), 0 },
{ SO_ANON_MLP, SOL_SOCKET, OA_RW, OA_RW, OP_NP, 0, sizeof (int),
0 },
{ SO_MAC_EXEMPT, SOL_SOCKET, OA_RW, OA_RW, OP_NP, 0, sizeof (int),
0 },
{ SO_ALLZONES, SOL_SOCKET, OA_R, OA_RW, OP_CONFIG, 0, sizeof (int),
0 },
{ SO_EXCLBIND, SOL_SOCKET, OA_RW, OA_RW, OP_NP, 0, sizeof (int), 0 },
{ SO_DOMAIN, SOL_SOCKET, OA_R, OA_R, OP_NP, 0, sizeof (int), 0 },
{ SO_PROTOTYPE, SOL_SOCKET, OA_R, OA_R, OP_NP, 0, sizeof (int), 0 },
{ SCTP_ADAPTATION_LAYER, IPPROTO_SCTP, OA_RW, OA_RW, OP_NP, 0,
sizeof (struct sctp_setadaptation), 0 },
{ SCTP_ADD_ADDR, IPPROTO_SCTP, OA_RW, OA_RW, OP_NP, OP_VARLEN,
sizeof (int), 0 },
{ SCTP_ASSOCINFO, IPPROTO_SCTP, OA_RW, OA_RW, OP_NP, 0,
sizeof (struct sctp_assocparams), 0 },
{ SCTP_AUTOCLOSE, IPPROTO_SCTP, OA_RW, OA_RW, OP_NP, 0, sizeof (int), 0 },
{ SCTP_DEFAULT_SEND_PARAM, IPPROTO_SCTP, OA_RW, OA_RW, OP_NP, 0,
sizeof (struct sctp_sndrcvinfo), 0 },
{ SCTP_DISABLE_FRAGMENTS, IPPROTO_SCTP, OA_RW, OA_RW, OP_NP, 0,
sizeof (int), 0 },
{ SCTP_EVENTS, IPPROTO_SCTP, OA_RW, OA_RW, OP_NP, 0,
sizeof (struct sctp_event_subscribe), 0 },
{ SCTP_GET_LADDRS, IPPROTO_SCTP, OA_R, OA_R, OP_NP, OP_VARLEN,
sizeof (int), 0 },
{ SCTP_GET_NLADDRS, IPPROTO_SCTP, OA_R, OA_R, OP_NP, 0, sizeof (int), 0 },
{ SCTP_GET_NPADDRS, IPPROTO_SCTP, OA_R, OA_R, OP_NP, 0, sizeof (int), 0 },
{ SCTP_GET_PADDRS, IPPROTO_SCTP, OA_R, OA_R, OP_NP, OP_VARLEN,
sizeof (int), 0 },
{ SCTP_GET_PEER_ADDR_INFO, IPPROTO_SCTP, OA_R, OA_R, OP_NP, 0,
sizeof (struct sctp_paddrinfo), 0 },
{ SCTP_INITMSG, IPPROTO_SCTP, OA_RW, OA_RW, OP_NP, 0,
sizeof (struct sctp_initmsg), 0 },
{ SCTP_I_WANT_MAPPED_V4_ADDR, IPPROTO_SCTP, OA_RW, OA_RW, OP_NP, 0,
sizeof (int), 0 },
{ SCTP_MAXSEG, IPPROTO_SCTP, OA_RW, OA_RW, OP_NP, 0, sizeof (int), 0 },
{ SCTP_NODELAY, IPPROTO_SCTP, OA_RW, OA_RW, OP_NP, 0, sizeof (int), 0 },
{ SCTP_PEER_ADDR_PARAMS, IPPROTO_SCTP, OA_RW, OA_RW, OP_NP, 0,
sizeof (struct sctp_paddrparams), 0 },
{ SCTP_PRIMARY_ADDR, IPPROTO_SCTP, OA_W, OA_W, OP_NP, 0,
sizeof (struct sctp_setpeerprim), 0 },
{ SCTP_PRSCTP, IPPROTO_SCTP, OA_RW, OA_RW, OP_NP, 0, sizeof (int), 0 },
{ SCTP_GET_ASSOC_STATS, IPPROTO_SCTP, OA_R, OA_R, OP_NP, 0,
sizeof (sctp_assoc_stats_t), 0 },
{ SCTP_REM_ADDR, IPPROTO_SCTP, OA_RW, OA_RW, OP_NP, OP_VARLEN,
sizeof (int), 0 },
{ SCTP_RTOINFO, IPPROTO_SCTP, OA_RW, OA_RW, OP_NP, 0,
sizeof (struct sctp_rtoinfo), 0 },
{ SCTP_SET_PEER_PRIMARY_ADDR, IPPROTO_SCTP, OA_W, OA_W, OP_NP, 0,
sizeof (struct sctp_setprim), 0 },
{ SCTP_STATUS, IPPROTO_SCTP, OA_R, OA_R, OP_NP, 0,
sizeof (struct sctp_status), 0 },
{ SCTP_UC_SWAP, IPPROTO_SCTP, OA_W, OA_W, OP_NP, 0,
sizeof (struct sctp_uc_swap), 0 },
{ IP_OPTIONS, IPPROTO_IP, OA_RW, OA_RW, OP_NP,
(OP_VARLEN|OP_NODEFAULT),
40, -1 /* not initialized */ },
{ T_IP_OPTIONS, IPPROTO_IP, OA_RW, OA_RW, OP_NP,
(OP_VARLEN|OP_NODEFAULT),
40, -1 /* not initialized */ },
{ IP_TOS, IPPROTO_IP, OA_RW, OA_RW, OP_NP, 0, sizeof (int), 0 },
{ T_IP_TOS, IPPROTO_IP, OA_RW, OA_RW, OP_NP, 0, sizeof (int), 0 },
{ IP_TTL, IPPROTO_IP, OA_RW, OA_RW, OP_NP, OP_DEF_FN,
sizeof (int), -1 /* not initialized */ },
{ IP_SEC_OPT, IPPROTO_IP, OA_RW, OA_RW, OP_NP, OP_NODEFAULT,
sizeof (ipsec_req_t), -1 /* not initialized */ },
{ IP_BOUND_IF, IPPROTO_IP, OA_RW, OA_RW, OP_NP, 0,
sizeof (int), 0 /* no ifindex */ },
{ IP_UNSPEC_SRC, IPPROTO_IP, OA_R, OA_RW, OP_RAW, 0,
sizeof (int), 0 },
{ IPV6_UNICAST_HOPS, IPPROTO_IPV6, OA_RW, OA_RW, OP_NP, OP_DEF_FN,
sizeof (int), -1 /* not initialized */ },
{ IPV6_BOUND_IF, IPPROTO_IPV6, OA_RW, OA_RW, OP_NP, 0,
sizeof (int), 0 /* no ifindex */ },
{ IP_DONTFRAG, IPPROTO_IP, OA_RW, OA_RW, OP_NP, 0, sizeof (int), 0 },
{ IP_NEXTHOP, IPPROTO_IP, OA_R, OA_RW, OP_CONFIG, 0,
sizeof (in_addr_t), -1 /* not initialized */ },
{ IPV6_UNSPEC_SRC, IPPROTO_IPV6, OA_R, OA_RW, OP_RAW, 0,
sizeof (int), 0 },
{ IPV6_PKTINFO, IPPROTO_IPV6, OA_RW, OA_RW, OP_NP,
(OP_NODEFAULT|OP_VARLEN),
sizeof (struct in6_pktinfo), -1 /* not initialized */ },
{ IPV6_NEXTHOP, IPPROTO_IPV6, OA_RW, OA_RW, OP_NP,
OP_NODEFAULT,
sizeof (sin6_t), -1 /* not initialized */ },
{ IPV6_HOPOPTS, IPPROTO_IPV6, OA_RW, OA_RW, OP_NP,
(OP_VARLEN|OP_NODEFAULT), 255*8,
-1 /* not initialized */ },
{ IPV6_DSTOPTS, IPPROTO_IPV6, OA_RW, OA_RW, OP_NP,
(OP_VARLEN|OP_NODEFAULT), 255*8,
-1 /* not initialized */ },
{ IPV6_RTHDRDSTOPTS, IPPROTO_IPV6, OA_RW, OA_RW, OP_NP,
(OP_VARLEN|OP_NODEFAULT), 255*8,
-1 /* not initialized */ },
{ IPV6_RTHDR, IPPROTO_IPV6, OA_RW, OA_RW, OP_NP,
(OP_VARLEN|OP_NODEFAULT), 255*8,
-1 /* not initialized */ },
{ IPV6_TCLASS, IPPROTO_IPV6, OA_RW, OA_RW, OP_NP,
OP_NODEFAULT,
sizeof (int), -1 /* not initialized */ },
{ IPV6_PATHMTU, IPPROTO_IPV6, OA_RW, OA_RW, OP_NP,
OP_NODEFAULT,
sizeof (struct ip6_mtuinfo), -1 /* not initialized */ },
{ IPV6_DONTFRAG, IPPROTO_IPV6, OA_RW, OA_RW, OP_NP, 0,
sizeof (int), 0 },
{ IPV6_USE_MIN_MTU, IPPROTO_IPV6, OA_RW, OA_RW, OP_NP, 0,
sizeof (int), 0 },
{ IPV6_V6ONLY, IPPROTO_IPV6, OA_RW, OA_RW, OP_NP, 0,
sizeof (int), 0 },
/* Enable receipt of ancillary data */
{ IPV6_RECVPKTINFO, IPPROTO_IPV6, OA_RW, OA_RW, OP_NP, 0,
sizeof (int), 0 },
{ IPV6_RECVHOPLIMIT, IPPROTO_IPV6, OA_RW, OA_RW, OP_NP, 0,
sizeof (int), 0 },
{ IPV6_RECVTCLASS, IPPROTO_IPV6, OA_RW, OA_RW, OP_NP, 0,
sizeof (int), 0 },
{ IPV6_RECVHOPOPTS, IPPROTO_IPV6, OA_RW, OA_RW, OP_NP, 0,
sizeof (int), 0 },
{ _OLD_IPV6_RECVDSTOPTS, IPPROTO_IPV6, OA_RW, OA_RW, OP_NP, 0,
sizeof (int), 0 },
{ IPV6_RECVDSTOPTS, IPPROTO_IPV6, OA_RW, OA_RW, OP_NP, 0,
sizeof (int), 0 },
{ IPV6_RECVRTHDR, IPPROTO_IPV6, OA_RW, OA_RW, OP_NP, 0,
sizeof (int), 0 },
{ IPV6_RECVRTHDRDSTOPTS, IPPROTO_IPV6, OA_RW, OA_RW, OP_NP, 0,
sizeof (int), 0 },
{ IPV6_RECVTCLASS, IPPROTO_IPV6, OA_RW, OA_RW, OP_NP, 0,
sizeof (int), 0 },
{ IPV6_SEC_OPT, IPPROTO_IPV6, OA_RW, OA_RW, OP_NP, OP_NODEFAULT,
sizeof (ipsec_req_t), -1 /* not initialized */ },
{ IPV6_SRC_PREFERENCES, IPPROTO_IPV6, OA_RW, OA_RW, OP_NP, 0,
sizeof (uint32_t), IPV6_PREFER_SRC_DEFAULT },
};
uint_t sctp_opt_arr_size = A_CNT(sctp_opt_arr);
/* Handy on off switch for socket option processing. */
#define ONOFF(x) ((x) == 0 ? 0 : 1)
/*
* SCTP routine to get the values of options.
*/
int
sctp_get_opt(sctp_t *sctp, int level, int name, void *ptr, socklen_t *optlen)
{
int *i1 = (int *)ptr;
int retval = 0;
int buflen = *optlen;
conn_t *connp = sctp->sctp_connp;
conn_opt_arg_t coas;
coas.coa_connp = connp;
coas.coa_ixa = connp->conn_ixa;
coas.coa_ipp = &connp->conn_xmit_ipp;
/* In most cases, the return buffer is just an int */
*optlen = sizeof (int32_t);
RUN_SCTP(sctp);
if (connp->conn_state_flags & CONN_CLOSING) {
WAKE_SCTP(sctp);
return (EINVAL);
}
/*
* Check that the level and name are supported by SCTP, and that
* the length and credentials are ok.
*/
retval = proto_opt_check(level, name, buflen, NULL, sctp_opt_arr,
sctp_opt_arr_size, B_FALSE, B_TRUE, connp->conn_cred);
if (retval != 0) {
WAKE_SCTP(sctp);
if (retval < 0) {
retval = proto_tlitosyserr(-retval);
}
return (retval);
}
switch (level) {
case IPPROTO_SCTP:
switch (name) {
case SCTP_RTOINFO:
*optlen = sctp_get_rtoinfo(sctp, ptr);
break;
case SCTP_ASSOCINFO:
*optlen = sctp_get_assocparams(sctp, ptr);
break;
case SCTP_INITMSG:
*optlen = sctp_get_initmsg(sctp, ptr);
break;
case SCTP_NODELAY:
*i1 = sctp->sctp_ndelay;
break;
case SCTP_AUTOCLOSE:
*i1 = TICK_TO_SEC(sctp->sctp_autoclose);
break;
case SCTP_ADAPTATION_LAYER:
((struct sctp_setadaptation *)ptr)->ssb_adaptation_ind =
sctp->sctp_tx_adaptation_code;
break;
case SCTP_PEER_ADDR_PARAMS:
*optlen = sctp_get_peer_addr_params(sctp, ptr);
break;
case SCTP_DEFAULT_SEND_PARAM:
*optlen = sctp_get_def_send_params(sctp, ptr);
break;
case SCTP_EVENTS: {
struct sctp_event_subscribe *ev;
ev = (struct sctp_event_subscribe *)ptr;
ev->sctp_data_io_event =
ONOFF(sctp->sctp_recvsndrcvinfo);
ev->sctp_association_event =
ONOFF(sctp->sctp_recvassocevnt);
ev->sctp_address_event =
ONOFF(sctp->sctp_recvpathevnt);
ev->sctp_send_failure_event =
ONOFF(sctp->sctp_recvsendfailevnt);
ev->sctp_peer_error_event =
ONOFF(sctp->sctp_recvpeererr);
ev->sctp_shutdown_event =
ONOFF(sctp->sctp_recvshutdownevnt);
ev->sctp_partial_delivery_event =
ONOFF(sctp->sctp_recvpdevnt);
ev->sctp_adaptation_layer_event =
ONOFF(sctp->sctp_recvalevnt);
*optlen = sizeof (struct sctp_event_subscribe);
break;
}
case SCTP_STATUS:
*optlen = sctp_get_status(sctp, ptr);
break;
case SCTP_GET_PEER_ADDR_INFO:
retval = sctp_get_paddrinfo(sctp, ptr, optlen);
break;
case SCTP_GET_NLADDRS:
*(int32_t *)ptr = sctp->sctp_nsaddrs;
break;
case SCTP_GET_LADDRS: {
int addr_cnt;
int addr_size;
if (connp->conn_family == AF_INET)
addr_size = sizeof (struct sockaddr_in);
else
addr_size = sizeof (struct sockaddr_in6);
addr_cnt = buflen / addr_size;
retval = sctp_getmyaddrs(sctp, ptr, &addr_cnt);
if (retval == 0)
*optlen = addr_cnt * addr_size;
break;
}
case SCTP_GET_NPADDRS: {
int i;
sctp_faddr_t *fp;
for (i = 0, fp = sctp->sctp_faddrs; fp != NULL;
i++, fp = fp->next)
;
*(int32_t *)ptr = i;
break;
}
case SCTP_GET_PADDRS: {
int addr_cnt;
int addr_size;
if (connp->conn_family == AF_INET)
addr_size = sizeof (struct sockaddr_in);
else
addr_size = sizeof (struct sockaddr_in6);
addr_cnt = buflen / addr_size;
retval = sctp_getpeeraddrs(sctp, ptr, &addr_cnt);
if (retval == 0)
*optlen = addr_cnt * addr_size;
break;
}
case SCTP_PRSCTP:
*i1 = sctp->sctp_prsctp_aware ? 1 : 0;
break;
case SCTP_GET_ASSOC_STATS: {
sctp_assoc_stats_t *sas;
sas = (sctp_assoc_stats_t *)ptr;
/*
* Copy the current stats to the stats struct.
* For stats which can be reset by snmp users
* add the cumulative and current stats for
* the raw totals to output to the user.
*/
sas->sas_gapcnt = sctp->sctp_gapcnt;
sas->sas_outseqtsns = sctp->sctp_outseqtsns;
sas->sas_osacks = sctp->sctp_osacks;
sas->sas_isacks = sctp->sctp_isacks;
sas->sas_idupchunks = sctp->sctp_idupchunks;
sas->sas_rtxchunks = sctp->sctp_rxtchunks +
sctp->sctp_cum_rxtchunks;
sas->sas_octrlchunks = sctp->sctp_obchunks +
sctp->sctp_cum_obchunks;
sas->sas_ictrlchunks = sctp->sctp_ibchunks +
sctp->sctp_cum_ibchunks;
sas->sas_oodchunks = sctp->sctp_odchunks +
sctp->sctp_cum_odchunks;
sas->sas_iodchunks = sctp->sctp_idchunks +
sctp->sctp_cum_idchunks;
sas->sas_ouodchunks = sctp->sctp_oudchunks +
sctp->sctp_cum_oudchunks;
sas->sas_iuodchunks = sctp->sctp_iudchunks +
sctp->sctp_cum_iudchunks;
/*
* Copy out the maximum observed RTO since the
* time this data was last requested
*/
if (sctp->sctp_maxrto == 0) {
/* unchanged during obervation period */
sas->sas_maxrto = sctp->sctp_prev_maxrto;
} else {
/* record new period maximum */
sas->sas_maxrto = sctp->sctp_maxrto;
}
/* Record the value sent to the user this period */
sctp->sctp_prev_maxrto = sas->sas_maxrto;
/* Mark beginning of a new observation period */
sctp->sctp_maxrto = 0;
*optlen = sizeof (sctp_assoc_stats_t);
break;
}
case SCTP_I_WANT_MAPPED_V4_ADDR:
case SCTP_MAXSEG:
case SCTP_DISABLE_FRAGMENTS:
default:
/* Not yet supported. */
retval = ENOPROTOOPT;
break;
}
WAKE_SCTP(sctp);
return (retval);
case IPPROTO_IP:
if (connp->conn_family != AF_INET) {
retval = EINVAL;
break;
}
switch (name) {
case IP_OPTIONS:
case T_IP_OPTIONS: {
/*
* This is compatible with BSD in that in only return
* the reverse source route with the final destination
* as the last entry. The first 4 bytes of the option
* will contain the final destination. Allocate a
* buffer large enough to hold all the options, we
* add IP_ADDR_LEN to SCTP_MAX_IP_OPTIONS_LENGTH since
* ip_opt_get_user() adds the final destination
* at the start.
*/
int opt_len;
uchar_t obuf[SCTP_MAX_IP_OPTIONS_LENGTH + IP_ADDR_LEN];
opt_len = ip_opt_get_user(connp, obuf);
ASSERT(opt_len <= sizeof (obuf));
if (buflen < opt_len) {
/* Silently truncate */
opt_len = buflen;
}
*optlen = opt_len;
bcopy(obuf, ptr, opt_len);
WAKE_SCTP(sctp);
return (0);
}
default:
break;
}
break;
}
mutex_enter(&connp->conn_lock);
retval = conn_opt_get(&coas, level, name, ptr);
mutex_exit(&connp->conn_lock);
WAKE_SCTP(sctp);
if (retval == -1)
return (EINVAL);
*optlen = retval;
return (0);
}
int
sctp_set_opt(sctp_t *sctp, int level, int name, const void *invalp,
socklen_t inlen)
{
int *i1 = (int *)invalp;
boolean_t onoff;
int retval = 0, addrcnt;
conn_t *connp = sctp->sctp_connp;
sctp_stack_t *sctps = sctp->sctp_sctps;
conn_opt_arg_t coas;
coas.coa_connp = connp;
coas.coa_ixa = connp->conn_ixa;
coas.coa_ipp = &connp->conn_xmit_ipp;
coas.coa_ancillary = B_FALSE;
coas.coa_changed = 0;
/* In all cases, the size of the option must be bigger than int */
if (inlen >= sizeof (int32_t)) {
onoff = ONOFF(*i1);
}
retval = 0;
RUN_SCTP(sctp);
if (connp->conn_state_flags & CONN_CLOSING) {
WAKE_SCTP(sctp);
return (EINVAL);
}
/*
* Check that the level and name are supported by SCTP, and that
* the length an credentials are ok.
*/
retval = proto_opt_check(level, name, inlen, NULL, sctp_opt_arr,
sctp_opt_arr_size, B_TRUE, B_FALSE, connp->conn_cred);
if (retval != 0) {
if (retval < 0) {
retval = proto_tlitosyserr(-retval);
}
goto done;
}
/* Note: both SCTP and TCP interpret l_linger as being in seconds */
switch (level) {
case SOL_SOCKET:
switch (name) {
case SO_SNDBUF:
if (*i1 > sctps->sctps_max_buf) {
retval = ENOBUFS;
goto done;
}
if (*i1 < 0) {
retval = EINVAL;
goto done;
}
connp->conn_sndbuf = *i1;
if (sctps->sctps_snd_lowat_fraction != 0) {
connp->conn_sndlowat = connp->conn_sndbuf /
sctps->sctps_snd_lowat_fraction;
}
goto done;
case SO_RCVBUF:
if (*i1 > sctps->sctps_max_buf) {
retval = ENOBUFS;
goto done;
}
/* Silently ignore zero */
if (*i1 != 0) {
struct sock_proto_props sopp;
/*
* Insist on a receive window that is at least
* sctp_recv_hiwat_minmss * MSS (default 4*MSS)
* to avoid funny interactions of Nagle
* algorithm, SWS avoidance and delayed
* acknowledgement.
*/
*i1 = MAX(*i1,
sctps->sctps_recv_hiwat_minmss *
sctp->sctp_mss);
/*
* Note that sctp_rwnd is modified by the
* protocol and here we just whack it.
*/
connp->conn_rcvbuf = sctp->sctp_rwnd = *i1;
sctp->sctp_irwnd = sctp->sctp_rwnd;
sctp->sctp_pd_point = sctp->sctp_rwnd;
sopp.sopp_flags = SOCKOPT_RCVHIWAT;
sopp.sopp_rxhiwat = connp->conn_rcvbuf;
sctp->sctp_ulp_prop(sctp->sctp_ulpd, &sopp);
}
/*
* XXX should we return the rwnd here
* and sctp_opt_get ?
*/
goto done;
case SO_ALLZONES:
if (sctp->sctp_state >= SCTPS_BOUND) {
retval = EINVAL;
goto done;
}
break;
case SO_MAC_EXEMPT:
if (sctp->sctp_state >= SCTPS_BOUND) {
retval = EINVAL;
goto done;
}
break;
}
break;
case IPPROTO_SCTP:
switch (name) {
case SCTP_RTOINFO:
retval = sctp_set_rtoinfo(sctp, invalp);
break;
case SCTP_ASSOCINFO:
retval = sctp_set_assocparams(sctp, invalp);
break;
case SCTP_INITMSG:
retval = sctp_set_initmsg(sctp, invalp, inlen);
break;
case SCTP_NODELAY:
sctp->sctp_ndelay = ONOFF(*i1);
break;
case SCTP_AUTOCLOSE:
if (SEC_TO_TICK(*i1) < 0) {
retval = EINVAL;
break;
}
/* Convert the number of seconds to ticks. */
sctp->sctp_autoclose = SEC_TO_TICK(*i1);
sctp_heartbeat_timer(sctp);
break;
case SCTP_SET_PEER_PRIMARY_ADDR:
retval = sctp_set_peerprim(sctp, invalp);
break;
case SCTP_PRIMARY_ADDR:
retval = sctp_set_prim(sctp, invalp);
break;
case SCTP_ADAPTATION_LAYER: {
struct sctp_setadaptation *ssb;
ssb = (struct sctp_setadaptation *)invalp;
sctp->sctp_send_adaptation = 1;
sctp->sctp_tx_adaptation_code = ssb->ssb_adaptation_ind;
break;
}
case SCTP_PEER_ADDR_PARAMS:
retval = sctp_set_peer_addr_params(sctp, invalp);
break;
case SCTP_DEFAULT_SEND_PARAM:
retval = sctp_set_def_send_params(sctp, invalp);
break;
case SCTP_EVENTS: {
struct sctp_event_subscribe *ev;
ev = (struct sctp_event_subscribe *)invalp;
sctp->sctp_recvsndrcvinfo =
ONOFF(ev->sctp_data_io_event);
sctp->sctp_recvassocevnt =
ONOFF(ev->sctp_association_event);
sctp->sctp_recvpathevnt =
ONOFF(ev->sctp_address_event);
sctp->sctp_recvsendfailevnt =
ONOFF(ev->sctp_send_failure_event);
sctp->sctp_recvpeererr =
ONOFF(ev->sctp_peer_error_event);
sctp->sctp_recvshutdownevnt =
ONOFF(ev->sctp_shutdown_event);
sctp->sctp_recvpdevnt =
ONOFF(ev->sctp_partial_delivery_event);
sctp->sctp_recvalevnt =
ONOFF(ev->sctp_adaptation_layer_event);
break;
}
case SCTP_ADD_ADDR:
case SCTP_REM_ADDR:
/*
* The sctp_t has to be bound first before
* the address list can be changed.
*/
if (sctp->sctp_state < SCTPS_BOUND) {
retval = EINVAL;
break;
}
if (connp->conn_family == AF_INET) {
addrcnt = inlen / sizeof (struct sockaddr_in);
} else {
ASSERT(connp->conn_family == AF_INET6);
addrcnt = inlen / sizeof (struct sockaddr_in6);
}
if (name == SCTP_ADD_ADDR) {
retval = sctp_bind_add(sctp, invalp, addrcnt,
B_TRUE, connp->conn_lport);
} else {
retval = sctp_bind_del(sctp, invalp, addrcnt,
B_TRUE);
}
break;
case SCTP_UC_SWAP: {
struct sctp_uc_swap *us;
/*
* Change handle & upcalls.
*/
us = (struct sctp_uc_swap *)invalp;
sctp->sctp_ulpd = us->sus_handle;
sctp->sctp_upcalls = us->sus_upcalls;
break;
}
case SCTP_PRSCTP:
sctp->sctp_prsctp_aware = onoff;
break;
case SCTP_I_WANT_MAPPED_V4_ADDR:
case SCTP_MAXSEG:
case SCTP_DISABLE_FRAGMENTS:
/* Not yet supported. */
retval = ENOPROTOOPT;
break;
}
goto done;
case IPPROTO_IP:
if (connp->conn_family != AF_INET) {
retval = ENOPROTOOPT;
goto done;
}
switch (name) {
case IP_SEC_OPT:
/*
* We should not allow policy setting after
* we start listening for connections.
*/
if (sctp->sctp_state >= SCTPS_LISTEN) {
retval = EINVAL;
goto done;
}
break;
}
break;
case IPPROTO_IPV6:
if (connp->conn_family != AF_INET6) {
retval = EINVAL;
goto done;
}
switch (name) {
case IPV6_RECVPKTINFO:
/* Send it with the next msg */
sctp->sctp_recvifindex = 0;
break;
case IPV6_RECVTCLASS:
/* Force it to be sent up with the next msg */
sctp->sctp_recvtclass = 0xffffffffU;
break;
case IPV6_RECVHOPLIMIT:
/* Force it to be sent up with the next msg */
sctp->sctp_recvhops = 0xffffffffU;
break;
case IPV6_SEC_OPT:
/*
* We should not allow policy setting after
* we start listening for connections.
*/
if (sctp->sctp_state >= SCTPS_LISTEN) {
retval = EINVAL;
goto done;
}
break;
case IPV6_V6ONLY:
/*
* After the bound state, setting the v6only option
* is too late.
*/
if (sctp->sctp_state >= SCTPS_BOUND) {
retval = EINVAL;
goto done;
}
break;
}
break;
}
retval = conn_opt_set(&coas, level, name, inlen, (uchar_t *)invalp,
B_FALSE, connp->conn_cred);
if (retval != 0)
goto done;
if (coas.coa_changed & COA_ROUTE_CHANGED) {
sctp_faddr_t *fp;
/*
* We recache the information which might pick a different
* source and redo IPsec as a result.
*/
for (fp = sctp->sctp_faddrs; fp != NULL; fp = fp->next)
sctp_get_dest(sctp, fp);
}
if (coas.coa_changed & COA_HEADER_CHANGED) {
retval = sctp_build_hdrs(sctp, KM_NOSLEEP);
if (retval != 0)
goto done;
}
if (coas.coa_changed & COA_WROFF_CHANGED) {
connp->conn_wroff = connp->conn_ht_iphc_allocated +
sctps->sctps_wroff_xtra;
if (sctp->sctp_current != NULL) {
/*
* Could be setting options before setting up
* connection.
*/
sctp_set_ulp_prop(sctp);
}
}
done:
WAKE_SCTP(sctp);
return (retval);
}
/*
* SCTP exported kernel interface for geting the first source address of
* a sctp_t. The parameter addr is assumed to have enough space to hold
* one socket address.
*/
int
sctp_getsockname(sctp_t *sctp, struct sockaddr *addr, socklen_t *addrlen)
{
int err = 0;
int addrcnt = 1;
sin_t *sin4;
sin6_t *sin6;
conn_t *connp = sctp->sctp_connp;
ASSERT(sctp != NULL);
RUN_SCTP(sctp);
addr->sa_family = connp->conn_family;
switch (connp->conn_family) {
case AF_INET:
sin4 = (sin_t *)addr;
if ((sctp->sctp_state <= SCTPS_LISTEN) &&
sctp->sctp_bound_to_all) {
sin4->sin_addr.s_addr = INADDR_ANY;
sin4->sin_port = connp->conn_lport;
} else {
err = sctp_getmyaddrs(sctp, sin4, &addrcnt);
if (err != 0) {
*addrlen = 0;
break;
}
}
*addrlen = sizeof (struct sockaddr_in);
break;
case AF_INET6:
sin6 = (sin6_t *)addr;
if ((sctp->sctp_state <= SCTPS_LISTEN) &&
sctp->sctp_bound_to_all) {
bzero(&sin6->sin6_addr, sizeof (sin6->sin6_addr));
sin6->sin6_port = connp->conn_lport;
} else {
err = sctp_getmyaddrs(sctp, sin6, &addrcnt);
if (err != 0) {
*addrlen = 0;
break;
}
}
*addrlen = sizeof (struct sockaddr_in6);
/* Note that flowinfo is only returned for getpeername */
break;
}
WAKE_SCTP(sctp);
return (err);
}
/*
* SCTP exported kernel interface for geting the primary peer address of
* a sctp_t. The parameter addr is assumed to have enough space to hold
* one socket address.
*/
int
sctp_getpeername(sctp_t *sctp, struct sockaddr *addr, socklen_t *addrlen)
{
int err = 0;
int addrcnt = 1;
sin6_t *sin6;
conn_t *connp = sctp->sctp_connp;
ASSERT(sctp != NULL);
RUN_SCTP(sctp);
addr->sa_family = connp->conn_family;
switch (connp->conn_family) {
case AF_INET:
err = sctp_getpeeraddrs(sctp, addr, &addrcnt);
if (err != 0) {
*addrlen = 0;
break;
}
*addrlen = sizeof (struct sockaddr_in);
break;
case AF_INET6:
sin6 = (sin6_t *)addr;
err = sctp_getpeeraddrs(sctp, sin6, &addrcnt);
if (err != 0) {
*addrlen = 0;
break;
}
*addrlen = sizeof (struct sockaddr_in6);
break;
}
WAKE_SCTP(sctp);
return (err);
}
/*
* Return a list of IP addresses of the peer endpoint of this sctp_t.
* The parameter paddrs is supposed to be either (struct sockaddr_in *) or
* (struct sockaddr_in6 *) depending on the address family of the sctp_t.
*/
int
sctp_getpeeraddrs(sctp_t *sctp, void *paddrs, int *addrcnt)
{
int family;
struct sockaddr_in *sin4;
struct sockaddr_in6 *sin6;
int max;
int cnt;
sctp_faddr_t *fp = sctp->sctp_faddrs;
in6_addr_t addr;
conn_t *connp = sctp->sctp_connp;
ASSERT(sctp != NULL);
if (sctp->sctp_faddrs == NULL)
return (ENOTCONN);
family = connp->conn_family;
max = *addrcnt;
/* If we want only one, give the primary */
if (max == 1) {
addr = sctp->sctp_primary->faddr;
switch (family) {
case AF_INET:
sin4 = paddrs;
IN6_V4MAPPED_TO_INADDR(&addr, &sin4->sin_addr);
sin4->sin_port = connp->conn_fport;
sin4->sin_family = AF_INET;
break;
case AF_INET6:
sin6 = paddrs;
sin6->sin6_addr = addr;
sin6->sin6_port = connp->conn_fport;
sin6->sin6_family = AF_INET6;
sin6->sin6_flowinfo = connp->conn_flowinfo;
if (IN6_IS_ADDR_LINKSCOPE(&addr) &&
sctp->sctp_primary != NULL &&
(sctp->sctp_primary->ixa->ixa_flags &
IXAF_SCOPEID_SET)) {
sin6->sin6_scope_id =
sctp->sctp_primary->ixa->ixa_scopeid;
} else {
sin6->sin6_scope_id = 0;
}
sin6->__sin6_src_id = 0;
break;
}
return (0);
}
for (cnt = 0; cnt < max && fp != NULL; cnt++, fp = fp->next) {
addr = fp->faddr;
switch (family) {
case AF_INET:
ASSERT(IN6_IS_ADDR_V4MAPPED(&addr));
sin4 = (struct sockaddr_in *)paddrs + cnt;
IN6_V4MAPPED_TO_INADDR(&addr, &sin4->sin_addr);
sin4->sin_port = connp->conn_fport;
sin4->sin_family = AF_INET;
break;
case AF_INET6:
sin6 = (struct sockaddr_in6 *)paddrs + cnt;
sin6->sin6_addr = addr;
sin6->sin6_port = connp->conn_fport;
sin6->sin6_family = AF_INET6;
sin6->sin6_flowinfo = connp->conn_flowinfo;
if (IN6_IS_ADDR_LINKSCOPE(&addr) &&
(fp->ixa->ixa_flags & IXAF_SCOPEID_SET))
sin6->sin6_scope_id = fp->ixa->ixa_scopeid;
else
sin6->sin6_scope_id = 0;
sin6->__sin6_src_id = 0;
break;
}
}
*addrcnt = cnt;
return (0);
}