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freebsd/sys/netinet/sctp_sysctl.c
Randall Stewart c54a18d26b - Adds support for the multi-asconf (From Kozuka-san) 
- Adds some prepwork (Not all yet) for vimage in particular
  support the delete the sctppcbinfo.xx structs. There is
  still a leak in here if it were to be called plus we stil
  need the regrouping (From Me and Michael Tuexen)
- Adds support for UDP tunneling. For BSD there is no
  socket yet setup so its disabled, but major argument
  changes are in here to emcompass the passing of the port
  number (zero when you don't have a udp tunnel, the default
  for BSD). Will add some hooks in UDP here shortly (discussed
  with Robert) that will allow easy tunneling. (Mainly from
  Peter Lei and Michael Tuexen with some BSD work from me :-D)
- Some ease for windows, evidently leave is reserved by their
  compile move label leave: -> out:

MFC after:	1 week
2008-05-20 13:47:46 +00:00

862 lines
34 KiB
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/*-
* Copyright (c) 2007, 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.
*/
#include <sys/cdefs.h>
__FBSDID("$FreeBSD$");
#include <netinet/sctp_os.h>
#include <netinet/sctp_constants.h>
#include <netinet/sctp_sysctl.h>
#include <netinet/sctp_pcb.h>
#include <netinet/sctputil.h>
#include <netinet/sctp_output.h>
/*
* sysctl tunable variables
*/
uint32_t sctp_sendspace = SCTPCTL_MAXDGRAM_DEFAULT;
uint32_t sctp_recvspace = SCTPCTL_RECVSPACE_DEFAULT;
uint32_t sctp_auto_asconf = SCTPCTL_AUTOASCONF_DEFAULT;
uint32_t sctp_multiple_asconfs = SCTPCTL_MULTIPLEASCONFS_DEFAULT;
uint32_t sctp_ecn_enable = SCTPCTL_ECN_ENABLE_DEFAULT;
uint32_t sctp_ecn_nonce = SCTPCTL_ECN_NONCE_DEFAULT;
uint32_t sctp_strict_sacks = SCTPCTL_STRICT_SACKS_DEFAULT;
uint32_t sctp_no_csum_on_loopback = SCTPCTL_LOOPBACK_NOCSUM_DEFAULT;
uint32_t sctp_strict_init = SCTPCTL_STRICT_INIT_DEFAULT;
uint32_t sctp_peer_chunk_oh = SCTPCTL_PEER_CHKOH_DEFAULT;
uint32_t sctp_max_burst_default = SCTPCTL_MAXBURST_DEFAULT;
uint32_t sctp_max_chunks_on_queue = SCTPCTL_MAXCHUNKS_DEFAULT;
uint32_t sctp_hashtblsize = SCTPCTL_TCBHASHSIZE_DEFAULT;
uint32_t sctp_pcbtblsize = SCTPCTL_PCBHASHSIZE_DEFAULT;
uint32_t sctp_min_split_point = SCTPCTL_MIN_SPLIT_POINT_DEFAULT;
uint32_t sctp_chunkscale = SCTPCTL_CHUNKSCALE_DEFAULT;
uint32_t sctp_delayed_sack_time_default = SCTPCTL_DELAYED_SACK_TIME_DEFAULT;
uint32_t sctp_sack_freq_default = SCTPCTL_SACK_FREQ_DEFAULT;
uint32_t sctp_system_free_resc_limit = SCTPCTL_SYS_RESOURCE_DEFAULT;
uint32_t sctp_asoc_free_resc_limit = SCTPCTL_ASOC_RESOURCE_DEFAULT;
uint32_t sctp_heartbeat_interval_default = SCTPCTL_HEARTBEAT_INTERVAL_DEFAULT;
uint32_t sctp_pmtu_raise_time_default = SCTPCTL_PMTU_RAISE_TIME_DEFAULT;
uint32_t sctp_shutdown_guard_time_default = SCTPCTL_SHUTDOWN_GUARD_TIME_DEFAULT;
uint32_t sctp_secret_lifetime_default = SCTPCTL_SECRET_LIFETIME_DEFAULT;
uint32_t sctp_rto_max_default = SCTPCTL_RTO_MAX_DEFAULT;
uint32_t sctp_rto_min_default = SCTPCTL_RTO_MIN_DEFAULT;
uint32_t sctp_rto_initial_default = SCTPCTL_RTO_INITIAL_DEFAULT;
uint32_t sctp_init_rto_max_default = SCTPCTL_INIT_RTO_MAX_DEFAULT;
uint32_t sctp_valid_cookie_life_default = SCTPCTL_VALID_COOKIE_LIFE_DEFAULT;
uint32_t sctp_init_rtx_max_default = SCTPCTL_INIT_RTX_MAX_DEFAULT;
uint32_t sctp_assoc_rtx_max_default = SCTPCTL_ASSOC_RTX_MAX_DEFAULT;
uint32_t sctp_path_rtx_max_default = SCTPCTL_PATH_RTX_MAX_DEFAULT;
uint32_t sctp_add_more_threshold = SCTPCTL_ADD_MORE_ON_OUTPUT_DEFAULT;
uint32_t sctp_nr_outgoing_streams_default = SCTPCTL_OUTGOING_STREAMS_DEFAULT;
uint32_t sctp_cmt_on_off = SCTPCTL_CMT_ON_OFF_DEFAULT;
uint32_t sctp_cmt_use_dac = SCTPCTL_CMT_USE_DAC_DEFAULT;
uint32_t sctp_cmt_pf = SCTPCTL_CMT_PF_DEFAULT;
uint32_t sctp_use_cwnd_based_maxburst = SCTPCTL_CWND_MAXBURST_DEFAULT;
uint32_t sctp_early_fr = SCTPCTL_EARLY_FAST_RETRAN_DEFAULT;
uint32_t sctp_early_fr_msec = SCTPCTL_EARLY_FAST_RETRAN_MSEC_DEFAULT;
uint32_t sctp_asconf_auth_nochk = SCTPCTL_ASCONF_AUTH_NOCHK_DEFAULT;
uint32_t sctp_auth_disable = SCTPCTL_AUTH_DISABLE_DEFAULT;
uint32_t sctp_nat_friendly = SCTPCTL_NAT_FRIENDLY_DEFAULT;
uint32_t sctp_L2_abc_variable = SCTPCTL_ABC_L_VAR_DEFAULT;
uint32_t sctp_mbuf_threshold_count = SCTPCTL_MAX_CHAINED_MBUFS_DEFAULT;
uint32_t sctp_do_drain = SCTPCTL_DO_SCTP_DRAIN_DEFAULT;
uint32_t sctp_hb_maxburst = SCTPCTL_HB_MAX_BURST_DEFAULT;
uint32_t sctp_abort_if_one_2_one_hits_limit = SCTPCTL_ABORT_AT_LIMIT_DEFAULT;
uint32_t sctp_strict_data_order = SCTPCTL_STRICT_DATA_ORDER_DEFAULT;
uint32_t sctp_min_residual = SCTPCTL_MIN_RESIDUAL_DEFAULT;
uint32_t sctp_max_retran_chunk = SCTPCTL_MAX_RETRAN_CHUNK_DEFAULT;
uint32_t sctp_logging_level = SCTPCTL_LOGGING_LEVEL_DEFAULT;
/* JRS - Variable for default congestion control module */
uint32_t sctp_default_cc_module = SCTPCTL_DEFAULT_CC_MODULE_DEFAULT;
uint32_t sctp_default_frag_interleave = SCTPCTL_DEFAULT_FRAG_INTERLEAVE_DEFAULT;
uint32_t sctp_mobility_base = SCTPCTL_MOBILITY_BASE_DEFAULT;
uint32_t sctp_mobility_fasthandoff = SCTPCTL_MOBILITY_FASTHANDOFF_DEFAULT;
#if defined(SCTP_LOCAL_TRACE_BUF)
struct sctp_log sctp_log;
#endif
uint32_t sctp_udp_tunneling_for_client_enable = SCTPCTL_UDP_TUNNELING_FOR_CLIENT_ENABLE_DEFAULT;
uint32_t sctp_udp_tunneling_port = SCTPCTL_UDP_TUNNELING_PORT_DEFAULT;
#ifdef SCTP_DEBUG
uint32_t sctp_debug_on = SCTPCTL_DEBUG_DEFAULT;
#endif
struct sctpstat sctpstat;
/* It returns an upper limit. No filtering is done here */
static unsigned int
number_of_addresses(struct sctp_inpcb *inp)
{
int cnt;
struct sctp_vrf *vrf;
struct sctp_ifn *sctp_ifn;
struct sctp_ifa *sctp_ifa;
struct sctp_laddr *laddr;
cnt = 0;
/* neither Mac OS X nor FreeBSD support mulitple routing functions */
if ((vrf = sctp_find_vrf(inp->def_vrf_id)) == NULL) {
return (0);
}
if (inp->sctp_flags & SCTP_PCB_FLAGS_BOUNDALL) {
LIST_FOREACH(sctp_ifn, &vrf->ifnlist, next_ifn) {
LIST_FOREACH(sctp_ifa, &sctp_ifn->ifalist, next_ifa) {
if ((sctp_ifa->address.sa.sa_family == AF_INET) ||
(sctp_ifa->address.sa.sa_family == AF_INET6)) {
cnt++;
}
}
}
} else {
LIST_FOREACH(laddr, &inp->sctp_addr_list, sctp_nxt_addr) {
if ((laddr->ifa->address.sa.sa_family == AF_INET) ||
(laddr->ifa->address.sa.sa_family == AF_INET6)) {
cnt++;
}
}
}
return (cnt);
}
static int
copy_out_local_addresses(struct sctp_inpcb *inp, struct sctp_tcb *stcb, struct sysctl_req *req)
{
struct sctp_ifn *sctp_ifn;
struct sctp_ifa *sctp_ifa;
int loopback_scope, ipv4_local_scope, local_scope, site_scope;
int ipv4_addr_legal, ipv6_addr_legal;
struct sctp_vrf *vrf;
struct xsctp_laddr xladdr;
struct sctp_laddr *laddr;
int error;
/* Turn on all the appropriate scope */
if (stcb) {
/* use association specific values */
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 {
/* use generic values for endpoints */
loopback_scope = 1;
ipv4_local_scope = 1;
local_scope = 1;
site_scope = 1;
}
/* use only address families of interest */
if (inp->sctp_flags & SCTP_PCB_FLAGS_BOUND_V6) {
ipv6_addr_legal = 1;
if (SCTP_IPV6_V6ONLY(inp)) {
ipv4_addr_legal = 0;
} else {
ipv4_addr_legal = 1;
}
} else {
ipv4_addr_legal = 1;
ipv6_addr_legal = 0;
}
error = 0;
/* neither Mac OS X nor FreeBSD support mulitple routing functions */
if ((vrf = sctp_find_vrf(inp->def_vrf_id)) == NULL) {
SCTP_INP_RUNLOCK(inp);
SCTP_INP_INFO_RUNLOCK();
return (-1);
}
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) {
/*
* ignore if blacklisted at
* association level
*/
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)
continue;
if ((ipv4_local_scope == 0) && (IN4_ISPRIVATE_ADDRESS(&sin->sin_addr)))
continue;
} 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))
continue;
if (IN6_IS_ADDR_LINKLOCAL(&sin6->sin6_addr)) {
if (local_scope == 0)
continue;
if (sin6->sin6_scope_id == 0) {
/*
* bad link
* local
* address
*/
if (sa6_recoverscope(sin6) != 0)
continue;
}
}
if ((site_scope == 0) && (IN6_IS_ADDR_SITELOCAL(&sin6->sin6_addr)))
continue;
} else {
continue;
}
break;
#endif
default:
continue;
}
memset((void *)&xladdr, 0, sizeof(struct xsctp_laddr));
memcpy((void *)&xladdr.address, (const void *)&sctp_ifa->address, sizeof(union sctp_sockstore));
SCTP_INP_RUNLOCK(inp);
SCTP_INP_INFO_RUNLOCK();
error = SYSCTL_OUT(req, &xladdr, sizeof(struct xsctp_laddr));
if (error) {
return (error);
} else {
SCTP_INP_INFO_RLOCK();
SCTP_INP_RLOCK(inp);
}
}
}
} else {
LIST_FOREACH(laddr, &inp->sctp_addr_list, sctp_nxt_addr) {
/* ignore if blacklisted at association level */
if (stcb && sctp_is_addr_restricted(stcb, laddr->ifa))
continue;
memset((void *)&xladdr, 0, sizeof(struct xsctp_laddr));
memcpy((void *)&xladdr.address, (const void *)&laddr->ifa->address, sizeof(union sctp_sockstore));
xladdr.start_time.tv_sec = (uint32_t) laddr->start_time.tv_sec;
xladdr.start_time.tv_usec = (uint32_t) laddr->start_time.tv_usec;
SCTP_INP_RUNLOCK(inp);
SCTP_INP_INFO_RUNLOCK();
error = SYSCTL_OUT(req, &xladdr, sizeof(struct xsctp_laddr));
if (error) {
return (error);
} else {
SCTP_INP_INFO_RLOCK();
SCTP_INP_RLOCK(inp);
}
}
}
memset((void *)&xladdr, 0, sizeof(struct xsctp_laddr));
xladdr.last = 1;
SCTP_INP_RUNLOCK(inp);
SCTP_INP_INFO_RUNLOCK();
error = SYSCTL_OUT(req, &xladdr, sizeof(struct xsctp_laddr));
if (error) {
return (error);
} else {
SCTP_INP_INFO_RLOCK();
SCTP_INP_RLOCK(inp);
return (0);
}
}
/*
* sysctl functions
*/
static int
sctp_assoclist(SYSCTL_HANDLER_ARGS)
{
unsigned int number_of_endpoints;
unsigned int number_of_local_addresses;
unsigned int number_of_associations;
unsigned int number_of_remote_addresses;
unsigned int n;
int error;
struct sctp_inpcb *inp;
struct sctp_tcb *stcb;
struct sctp_nets *net;
struct xsctp_inpcb xinpcb;
struct xsctp_tcb xstcb;
struct xsctp_raddr xraddr;
number_of_endpoints = 0;
number_of_local_addresses = 0;
number_of_associations = 0;
number_of_remote_addresses = 0;
SCTP_INP_INFO_RLOCK();
if (req->oldptr == USER_ADDR_NULL) {
LIST_FOREACH(inp, &sctppcbinfo.listhead, sctp_list) {
SCTP_INP_RLOCK(inp);
number_of_endpoints++;
number_of_local_addresses += number_of_addresses(inp);
LIST_FOREACH(stcb, &inp->sctp_asoc_list, sctp_tcblist) {
number_of_associations++;
number_of_local_addresses += number_of_addresses(inp);
TAILQ_FOREACH(net, &stcb->asoc.nets, sctp_next) {
number_of_remote_addresses++;
}
}
SCTP_INP_RUNLOCK(inp);
}
SCTP_INP_INFO_RUNLOCK();
n = (number_of_endpoints + 1) * sizeof(struct xsctp_inpcb) +
(number_of_local_addresses + number_of_endpoints + number_of_associations) * sizeof(struct xsctp_laddr) +
(number_of_associations + number_of_endpoints) * sizeof(struct xsctp_tcb) +
(number_of_remote_addresses + number_of_associations) * sizeof(struct xsctp_raddr);
/* request some more memory than needed */
req->oldidx = (n + n / 8);
return 0;
}
if (req->newptr != USER_ADDR_NULL) {
SCTP_INP_INFO_RUNLOCK();
SCTP_LTRACE_ERR_RET(NULL, NULL, NULL, SCTP_FROM_SCTP_SYSCTL, EPERM);
return EPERM;
}
LIST_FOREACH(inp, &sctppcbinfo.listhead, sctp_list) {
SCTP_INP_RLOCK(inp);
xinpcb.last = 0;
xinpcb.local_port = ntohs(inp->sctp_lport);
xinpcb.flags = inp->sctp_flags;
xinpcb.features = inp->sctp_features;
xinpcb.total_sends = inp->total_sends;
xinpcb.total_recvs = inp->total_recvs;
xinpcb.total_nospaces = inp->total_nospaces;
xinpcb.fragmentation_point = inp->sctp_frag_point;
if ((inp->sctp_flags & SCTP_PCB_FLAGS_SOCKET_ALLGONE) ||
(inp->sctp_flags & SCTP_PCB_FLAGS_SOCKET_GONE)) {
xinpcb.qlen = 0;
xinpcb.maxqlen = 0;
} else {
xinpcb.qlen = inp->sctp_socket->so_qlen;
xinpcb.maxqlen = inp->sctp_socket->so_qlimit;
}
SCTP_INP_INCR_REF(inp);
SCTP_INP_RUNLOCK(inp);
SCTP_INP_INFO_RUNLOCK();
error = SYSCTL_OUT(req, &xinpcb, sizeof(struct xsctp_inpcb));
if (error) {
SCTP_INP_DECR_REF(inp);
return error;
}
SCTP_INP_INFO_RLOCK();
SCTP_INP_RLOCK(inp);
error = copy_out_local_addresses(inp, NULL, req);
if (error) {
SCTP_INP_DECR_REF(inp);
return error;
}
LIST_FOREACH(stcb, &inp->sctp_asoc_list, sctp_tcblist) {
SCTP_TCB_LOCK(stcb);
atomic_add_int(&stcb->asoc.refcnt, 1);
SCTP_TCB_UNLOCK(stcb);
xstcb.last = 0;
xstcb.local_port = ntohs(inp->sctp_lport);
xstcb.remote_port = ntohs(stcb->rport);
if (stcb->asoc.primary_destination != NULL)
xstcb.primary_addr = stcb->asoc.primary_destination->ro._l_addr;
xstcb.heartbeat_interval = stcb->asoc.heart_beat_delay;
xstcb.state = SCTP_GET_STATE(&stcb->asoc); /* FIXME */
xstcb.in_streams = stcb->asoc.streamincnt;
xstcb.out_streams = stcb->asoc.streamoutcnt;
xstcb.max_nr_retrans = stcb->asoc.overall_error_count;
xstcb.primary_process = 0; /* not really supported
* yet */
xstcb.T1_expireries = stcb->asoc.timoinit + stcb->asoc.timocookie;
xstcb.T2_expireries = stcb->asoc.timoshutdown + stcb->asoc.timoshutdownack;
xstcb.retransmitted_tsns = stcb->asoc.marked_retrans;
xstcb.start_time.tv_sec = (uint32_t) stcb->asoc.start_time.tv_sec;
xstcb.start_time.tv_usec = (uint32_t) stcb->asoc.start_time.tv_usec;
xstcb.discontinuity_time.tv_sec = (uint32_t) stcb->asoc.discontinuity_time.tv_sec;
xstcb.discontinuity_time.tv_usec = (uint32_t) stcb->asoc.discontinuity_time.tv_usec;
xstcb.total_sends = stcb->total_sends;
xstcb.total_recvs = stcb->total_recvs;
xstcb.local_tag = stcb->asoc.my_vtag;
xstcb.remote_tag = stcb->asoc.peer_vtag;
xstcb.initial_tsn = stcb->asoc.init_seq_number;
xstcb.highest_tsn = stcb->asoc.sending_seq - 1;
xstcb.cumulative_tsn = stcb->asoc.last_acked_seq;
xstcb.cumulative_tsn_ack = stcb->asoc.cumulative_tsn;
xstcb.mtu = stcb->asoc.smallest_mtu;
xstcb.refcnt = stcb->asoc.refcnt;
SCTP_INP_RUNLOCK(inp);
SCTP_INP_INFO_RUNLOCK();
error = SYSCTL_OUT(req, &xstcb, sizeof(struct xsctp_tcb));
if (error) {
SCTP_INP_DECR_REF(inp);
atomic_subtract_int(&stcb->asoc.refcnt, 1);
return error;
}
SCTP_INP_INFO_RLOCK();
SCTP_INP_RLOCK(inp);
error = copy_out_local_addresses(inp, stcb, req);
if (error) {
SCTP_INP_DECR_REF(inp);
atomic_subtract_int(&stcb->asoc.refcnt, 1);
return error;
}
TAILQ_FOREACH(net, &stcb->asoc.nets, sctp_next) {
xraddr.last = 0;
xraddr.address = net->ro._l_addr;
xraddr.active = ((net->dest_state & SCTP_ADDR_REACHABLE) == SCTP_ADDR_REACHABLE);
xraddr.confirmed = ((net->dest_state & SCTP_ADDR_UNCONFIRMED) == 0);
xraddr.heartbeat_enabled = ((net->dest_state & SCTP_ADDR_NOHB) == 0);
xraddr.rto = net->RTO;
xraddr.max_path_rtx = net->failure_threshold;
xraddr.rtx = net->marked_retrans;
xraddr.error_counter = net->error_count;
xraddr.cwnd = net->cwnd;
xraddr.flight_size = net->flight_size;
xraddr.mtu = net->mtu;
xraddr.start_time.tv_sec = (uint32_t) net->start_time.tv_sec;
xraddr.start_time.tv_usec = (uint32_t) net->start_time.tv_usec;
SCTP_INP_RUNLOCK(inp);
SCTP_INP_INFO_RUNLOCK();
error = SYSCTL_OUT(req, &xraddr, sizeof(struct xsctp_raddr));
if (error) {
SCTP_INP_DECR_REF(inp);
atomic_subtract_int(&stcb->asoc.refcnt, 1);
return error;
}
SCTP_INP_INFO_RLOCK();
SCTP_INP_RLOCK(inp);
}
atomic_subtract_int(&stcb->asoc.refcnt, 1);
memset((void *)&xraddr, 0, sizeof(struct xsctp_raddr));
xraddr.last = 1;
SCTP_INP_RUNLOCK(inp);
SCTP_INP_INFO_RUNLOCK();
error = SYSCTL_OUT(req, &xraddr, sizeof(struct xsctp_raddr));
if (error) {
SCTP_INP_DECR_REF(inp);
return error;
}
SCTP_INP_INFO_RLOCK();
SCTP_INP_RLOCK(inp);
}
SCTP_INP_DECR_REF(inp);
SCTP_INP_RUNLOCK(inp);
SCTP_INP_INFO_RUNLOCK();
memset((void *)&xstcb, 0, sizeof(struct xsctp_tcb));
xstcb.last = 1;
error = SYSCTL_OUT(req, &xstcb, sizeof(struct xsctp_tcb));
if (error) {
return error;
}
SCTP_INP_INFO_RLOCK();
}
SCTP_INP_INFO_RUNLOCK();
memset((void *)&xinpcb, 0, sizeof(struct xsctp_inpcb));
xinpcb.last = 1;
error = SYSCTL_OUT(req, &xinpcb, sizeof(struct xsctp_inpcb));
return error;
}
#define RANGECHK(var, min, max) \
if ((var) < (min)) { (var) = (min); } \
else if ((var) > (max)) { (var) = (max); }
static int
sysctl_sctp_udp_tunneling_check(SYSCTL_HANDLER_ARGS)
{
int error;
uint32_t old_sctp_udp_tunneling_port;
old_sctp_udp_tunneling_port = sctp_udp_tunneling_port;
error = sysctl_handle_int(oidp, oidp->oid_arg1, oidp->oid_arg2, req);
if (error == 0) {
RANGECHK(sctp_udp_tunneling_port, SCTPCTL_UDP_TUNNELING_PORT_MIN, SCTPCTL_UDP_TUNNELING_PORT_MAX);
if (old_sctp_udp_tunneling_port) {
sctp_over_udp_stop();
}
if (sctp_udp_tunneling_port) {
if (sctp_over_udp_start()) {
sctp_udp_tunneling_port = 0;
}
}
}
return (error);
}
static int
sysctl_sctp_check(SYSCTL_HANDLER_ARGS)
{
int error;
error = sysctl_handle_int(oidp, oidp->oid_arg1, oidp->oid_arg2, req);
if (error == 0) {
RANGECHK(sctp_sendspace, SCTPCTL_MAXDGRAM_MIN, SCTPCTL_MAXDGRAM_MAX);
RANGECHK(sctp_recvspace, SCTPCTL_RECVSPACE_MIN, SCTPCTL_RECVSPACE_MAX);
#if defined(__FreeBSD__) || defined(SCTP_APPLE_AUTO_ASCONF)
RANGECHK(sctp_auto_asconf, SCTPCTL_AUTOASCONF_MIN, SCTPCTL_AUTOASCONF_MAX);
#endif
RANGECHK(sctp_ecn_enable, SCTPCTL_ECN_ENABLE_MIN, SCTPCTL_ECN_ENABLE_MAX);
RANGECHK(sctp_ecn_nonce, SCTPCTL_ECN_NONCE_MIN, SCTPCTL_ECN_NONCE_MAX);
RANGECHK(sctp_strict_sacks, SCTPCTL_STRICT_SACKS_MIN, SCTPCTL_STRICT_SACKS_MAX);
RANGECHK(sctp_no_csum_on_loopback, SCTPCTL_LOOPBACK_NOCSUM_MIN, SCTPCTL_LOOPBACK_NOCSUM_MAX);
RANGECHK(sctp_strict_init, SCTPCTL_STRICT_INIT_MIN, SCTPCTL_STRICT_INIT_MAX);
RANGECHK(sctp_peer_chunk_oh, SCTPCTL_PEER_CHKOH_MIN, SCTPCTL_PEER_CHKOH_MAX);
RANGECHK(sctp_max_burst_default, SCTPCTL_MAXBURST_MIN, SCTPCTL_MAXBURST_MAX);
RANGECHK(sctp_max_chunks_on_queue, SCTPCTL_MAXCHUNKS_MIN, SCTPCTL_MAXCHUNKS_MAX);
RANGECHK(sctp_hashtblsize, SCTPCTL_TCBHASHSIZE_MIN, SCTPCTL_TCBHASHSIZE_MAX);
RANGECHK(sctp_pcbtblsize, SCTPCTL_PCBHASHSIZE_MIN, SCTPCTL_PCBHASHSIZE_MAX);
RANGECHK(sctp_min_split_point, SCTPCTL_MIN_SPLIT_POINT_MIN, SCTPCTL_MIN_SPLIT_POINT_MAX);
RANGECHK(sctp_chunkscale, SCTPCTL_CHUNKSCALE_MIN, SCTPCTL_CHUNKSCALE_MAX);
RANGECHK(sctp_delayed_sack_time_default, SCTPCTL_DELAYED_SACK_TIME_MIN, SCTPCTL_DELAYED_SACK_TIME_MAX);
RANGECHK(sctp_sack_freq_default, SCTPCTL_SACK_FREQ_MIN, SCTPCTL_SACK_FREQ_MAX);
RANGECHK(sctp_system_free_resc_limit, SCTPCTL_SYS_RESOURCE_MIN, SCTPCTL_SYS_RESOURCE_MAX);
RANGECHK(sctp_asoc_free_resc_limit, SCTPCTL_ASOC_RESOURCE_MIN, SCTPCTL_ASOC_RESOURCE_MAX);
RANGECHK(sctp_heartbeat_interval_default, SCTPCTL_HEARTBEAT_INTERVAL_MIN, SCTPCTL_HEARTBEAT_INTERVAL_MAX);
RANGECHK(sctp_pmtu_raise_time_default, SCTPCTL_PMTU_RAISE_TIME_MIN, SCTPCTL_PMTU_RAISE_TIME_MAX);
RANGECHK(sctp_shutdown_guard_time_default, SCTPCTL_SHUTDOWN_GUARD_TIME_MIN, SCTPCTL_SHUTDOWN_GUARD_TIME_MAX);
RANGECHK(sctp_secret_lifetime_default, SCTPCTL_SECRET_LIFETIME_MIN, SCTPCTL_SECRET_LIFETIME_MAX);
RANGECHK(sctp_rto_max_default, SCTPCTL_RTO_MAX_MIN, SCTPCTL_RTO_MAX_MAX);
RANGECHK(sctp_rto_min_default, SCTPCTL_RTO_MIN_MIN, SCTPCTL_RTO_MIN_MAX);
RANGECHK(sctp_rto_initial_default, SCTPCTL_RTO_INITIAL_MIN, SCTPCTL_RTO_INITIAL_MAX);
RANGECHK(sctp_init_rto_max_default, SCTPCTL_INIT_RTO_MAX_MIN, SCTPCTL_INIT_RTO_MAX_MAX);
RANGECHK(sctp_valid_cookie_life_default, SCTPCTL_VALID_COOKIE_LIFE_MIN, SCTPCTL_VALID_COOKIE_LIFE_MAX);
RANGECHK(sctp_init_rtx_max_default, SCTPCTL_INIT_RTX_MAX_MIN, SCTPCTL_INIT_RTX_MAX_MAX);
RANGECHK(sctp_assoc_rtx_max_default, SCTPCTL_ASSOC_RTX_MAX_MIN, SCTPCTL_ASSOC_RTX_MAX_MAX);
RANGECHK(sctp_path_rtx_max_default, SCTPCTL_PATH_RTX_MAX_MIN, SCTPCTL_PATH_RTX_MAX_MAX);
RANGECHK(sctp_add_more_threshold, SCTPCTL_ADD_MORE_ON_OUTPUT_MIN, SCTPCTL_ADD_MORE_ON_OUTPUT_MAX);
RANGECHK(sctp_nr_outgoing_streams_default, SCTPCTL_OUTGOING_STREAMS_MIN, SCTPCTL_OUTGOING_STREAMS_MAX);
RANGECHK(sctp_cmt_on_off, SCTPCTL_CMT_ON_OFF_MIN, SCTPCTL_CMT_ON_OFF_MAX);
RANGECHK(sctp_cmt_use_dac, SCTPCTL_CMT_USE_DAC_MIN, SCTPCTL_CMT_USE_DAC_MAX);
RANGECHK(sctp_cmt_pf, SCTPCTL_CMT_PF_MIN, SCTPCTL_CMT_PF_MAX);
RANGECHK(sctp_use_cwnd_based_maxburst, SCTPCTL_CWND_MAXBURST_MIN, SCTPCTL_CWND_MAXBURST_MAX);
RANGECHK(sctp_early_fr, SCTPCTL_EARLY_FAST_RETRAN_MIN, SCTPCTL_EARLY_FAST_RETRAN_MAX);
RANGECHK(sctp_early_fr_msec, SCTPCTL_EARLY_FAST_RETRAN_MSEC_MIN, SCTPCTL_EARLY_FAST_RETRAN_MSEC_MAX);
RANGECHK(sctp_asconf_auth_nochk, SCTPCTL_ASCONF_AUTH_NOCHK_MIN, SCTPCTL_ASCONF_AUTH_NOCHK_MAX);
RANGECHK(sctp_auth_disable, SCTPCTL_AUTH_DISABLE_MIN, SCTPCTL_AUTH_DISABLE_MAX);
RANGECHK(sctp_nat_friendly, SCTPCTL_NAT_FRIENDLY_MIN, SCTPCTL_NAT_FRIENDLY_MAX);
RANGECHK(sctp_L2_abc_variable, SCTPCTL_ABC_L_VAR_MIN, SCTPCTL_ABC_L_VAR_MAX);
RANGECHK(sctp_mbuf_threshold_count, SCTPCTL_MAX_CHAINED_MBUFS_MIN, SCTPCTL_MAX_CHAINED_MBUFS_MAX);
RANGECHK(sctp_do_drain, SCTPCTL_DO_SCTP_DRAIN_MIN, SCTPCTL_DO_SCTP_DRAIN_MAX);
RANGECHK(sctp_hb_maxburst, SCTPCTL_HB_MAX_BURST_MIN, SCTPCTL_HB_MAX_BURST_MAX);
RANGECHK(sctp_abort_if_one_2_one_hits_limit, SCTPCTL_ABORT_AT_LIMIT_MIN, SCTPCTL_ABORT_AT_LIMIT_MAX);
RANGECHK(sctp_strict_data_order, SCTPCTL_STRICT_DATA_ORDER_MIN, SCTPCTL_STRICT_DATA_ORDER_MAX);
RANGECHK(sctp_min_residual, SCTPCTL_MIN_RESIDUAL_MIN, SCTPCTL_MIN_RESIDUAL_MAX);
RANGECHK(sctp_max_retran_chunk, SCTPCTL_MAX_RETRAN_CHUNK_MIN, SCTPCTL_MAX_RETRAN_CHUNK_MAX);
RANGECHK(sctp_logging_level, SCTPCTL_LOGGING_LEVEL_MIN, SCTPCTL_LOGGING_LEVEL_MAX);
RANGECHK(sctp_default_cc_module, SCTPCTL_DEFAULT_CC_MODULE_MIN, SCTPCTL_DEFAULT_CC_MODULE_MAX);
RANGECHK(sctp_default_frag_interleave, SCTPCTL_DEFAULT_FRAG_INTERLEAVE_MIN, SCTPCTL_DEFAULT_FRAG_INTERLEAVE_MAX);
#if defined(__FreeBSD__) || defined(SCTP_APPLE_MOBILITY_BASE)
RANGECHK(sctp_mobility_base, SCTPCTL_MOBILITY_BASE_MIN, SCTPCTL_MOBILITY_BASE_MAX);
#endif
#if defined(__FreeBSD__) || defined(SCTP_APPLE_MOBILITY_FASTHANDOFF)
RANGECHK(sctp_mobility_fasthandoff, SCTPCTL_MOBILITY_FASTHANDOFF_MIN, SCTPCTL_MOBILITY_FASTHANDOFF_MAX);
#endif
RANGECHK(sctp_udp_tunneling_for_client_enable, SCTPCTL_UDP_TUNNELING_FOR_CLIENT_ENABLE_MIN, SCTPCTL_UDP_TUNNELING_FOR_CLIENT_ENABLE_MAX);
#ifdef SCTP_DEBUG
RANGECHK(sctp_debug_on, SCTPCTL_DEBUG_MIN, SCTPCTL_DEBUG_MAX);
#endif
}
return (error);
}
/*
* sysctl definitions
*/
SYSCTL_PROC(_net_inet_sctp, OID_AUTO, sendspace, CTLTYPE_INT | CTLFLAG_RW,
&sctp_sendspace, 0, sysctl_sctp_check, "IU",
SCTPCTL_MAXDGRAM_DESC);
SYSCTL_PROC(_net_inet_sctp, OID_AUTO, recvspace, CTLTYPE_INT | CTLFLAG_RW,
&sctp_recvspace, 0, sysctl_sctp_check, "IU",
SCTPCTL_RECVSPACE_DESC);
#if defined(__FreeBSD__) || defined(SCTP_APPLE_AUTO_ASCONF)
SYSCTL_PROC(_net_inet_sctp, OID_AUTO, auto_asconf, CTLTYPE_INT | CTLFLAG_RW,
&sctp_auto_asconf, 0, sysctl_sctp_check, "IU",
SCTPCTL_AUTOASCONF_DESC);
#endif
SYSCTL_PROC(_net_inet_sctp, OID_AUTO, ecn_enable, CTLTYPE_INT | CTLFLAG_RW,
&sctp_ecn_enable, 0, sysctl_sctp_check, "IU",
SCTPCTL_ECN_ENABLE_DESC);
SYSCTL_PROC(_net_inet_sctp, OID_AUTO, ecn_nonce, CTLTYPE_INT | CTLFLAG_RW,
&sctp_ecn_nonce, 0, sysctl_sctp_check, "IU",
SCTPCTL_ECN_NONCE_DESC);
SYSCTL_PROC(_net_inet_sctp, OID_AUTO, strict_sacks, CTLTYPE_INT | CTLFLAG_RW,
&sctp_strict_sacks, 0, sysctl_sctp_check, "IU",
SCTPCTL_STRICT_SACKS_DESC);
SYSCTL_PROC(_net_inet_sctp, OID_AUTO, loopback_nocsum, CTLTYPE_INT | CTLFLAG_RW,
&sctp_no_csum_on_loopback, 0, sysctl_sctp_check, "IU",
SCTPCTL_LOOPBACK_NOCSUM_DESC);
SYSCTL_PROC(_net_inet_sctp, OID_AUTO, strict_init, CTLTYPE_INT | CTLFLAG_RW,
&sctp_strict_init, 0, sysctl_sctp_check, "IU",
SCTPCTL_STRICT_INIT_DESC);
SYSCTL_PROC(_net_inet_sctp, OID_AUTO, peer_chkoh, CTLTYPE_INT | CTLFLAG_RW,
&sctp_peer_chunk_oh, 0, sysctl_sctp_check, "IU",
SCTPCTL_PEER_CHKOH_DESC);
SYSCTL_PROC(_net_inet_sctp, OID_AUTO, maxburst, CTLTYPE_INT | CTLFLAG_RW,
&sctp_max_burst_default, 0, sysctl_sctp_check, "IU",
SCTPCTL_MAXBURST_DESC);
SYSCTL_PROC(_net_inet_sctp, OID_AUTO, maxchunks, CTLTYPE_INT | CTLFLAG_RW,
&sctp_max_chunks_on_queue, 0, sysctl_sctp_check, "IU",
SCTPCTL_MAXCHUNKS_DESC);
SYSCTL_PROC(_net_inet_sctp, OID_AUTO, tcbhashsize, CTLTYPE_INT | CTLFLAG_RW,
&sctp_hashtblsize, 0, sysctl_sctp_check, "IU",
SCTPCTL_TCBHASHSIZE_DESC);
SYSCTL_PROC(_net_inet_sctp, OID_AUTO, pcbhashsize, CTLTYPE_INT | CTLFLAG_RW,
&sctp_pcbtblsize, 0, sysctl_sctp_check, "IU",
SCTPCTL_PCBHASHSIZE_DESC);
SYSCTL_PROC(_net_inet_sctp, OID_AUTO, min_split_point, CTLTYPE_INT | CTLFLAG_RW,
&sctp_min_split_point, 0, sysctl_sctp_check, "IU",
SCTPCTL_MIN_SPLIT_POINT_DESC);
SYSCTL_PROC(_net_inet_sctp, OID_AUTO, chunkscale, CTLTYPE_INT | CTLFLAG_RW,
&sctp_chunkscale, 0, sysctl_sctp_check, "IU",
SCTPCTL_CHUNKSCALE_DESC);
SYSCTL_PROC(_net_inet_sctp, OID_AUTO, delayed_sack_time, CTLTYPE_INT | CTLFLAG_RW,
&sctp_delayed_sack_time_default, 0, sysctl_sctp_check, "IU",
SCTPCTL_DELAYED_SACK_TIME_DESC);
SYSCTL_PROC(_net_inet_sctp, OID_AUTO, sack_freq, CTLTYPE_INT | CTLFLAG_RW,
&sctp_sack_freq_default, 0, sysctl_sctp_check, "IU",
SCTPCTL_SACK_FREQ_DESC);
SYSCTL_PROC(_net_inet_sctp, OID_AUTO, sys_resource, CTLTYPE_INT | CTLFLAG_RW,
&sctp_system_free_resc_limit, 0, sysctl_sctp_check, "IU",
SCTPCTL_SYS_RESOURCE_DESC);
SYSCTL_PROC(_net_inet_sctp, OID_AUTO, asoc_resource, CTLTYPE_INT | CTLFLAG_RW,
&sctp_asoc_free_resc_limit, 0, sysctl_sctp_check, "IU",
SCTPCTL_ASOC_RESOURCE_DESC);
SYSCTL_PROC(_net_inet_sctp, OID_AUTO, heartbeat_interval, CTLTYPE_INT | CTLFLAG_RW,
&sctp_heartbeat_interval_default, 0, sysctl_sctp_check, "IU",
SCTPCTL_HEARTBEAT_INTERVAL_DESC);
SYSCTL_PROC(_net_inet_sctp, OID_AUTO, pmtu_raise_time, CTLTYPE_INT | CTLFLAG_RW,
&sctp_pmtu_raise_time_default, 0, sysctl_sctp_check, "IU",
SCTPCTL_PMTU_RAISE_TIME_DESC);
SYSCTL_PROC(_net_inet_sctp, OID_AUTO, shutdown_guard_time, CTLTYPE_INT | CTLFLAG_RW,
&sctp_shutdown_guard_time_default, 0, sysctl_sctp_check, "IU",
SCTPCTL_SHUTDOWN_GUARD_TIME_DESC);
SYSCTL_PROC(_net_inet_sctp, OID_AUTO, secret_lifetime, CTLTYPE_INT | CTLFLAG_RW,
&sctp_secret_lifetime_default, 0, sysctl_sctp_check, "IU",
SCTPCTL_SECRET_LIFETIME_DESC);
SYSCTL_PROC(_net_inet_sctp, OID_AUTO, rto_max, CTLTYPE_INT | CTLFLAG_RW,
&sctp_rto_max_default, 0, sysctl_sctp_check, "IU",
SCTPCTL_RTO_MAX_DESC);
SYSCTL_PROC(_net_inet_sctp, OID_AUTO, rto_min, CTLTYPE_INT | CTLFLAG_RW,
&sctp_rto_min_default, 0, sysctl_sctp_check, "IU",
SCTPCTL_RTO_MIN_DESC);
SYSCTL_PROC(_net_inet_sctp, OID_AUTO, rto_initial, CTLTYPE_INT | CTLFLAG_RW,
&sctp_rto_initial_default, 0, sysctl_sctp_check, "IU",
SCTPCTL_RTO_INITIAL_DESC);
SYSCTL_PROC(_net_inet_sctp, OID_AUTO, init_rto_max, CTLTYPE_INT | CTLFLAG_RW,
&sctp_init_rto_max_default, 0, sysctl_sctp_check, "IU",
SCTPCTL_INIT_RTO_MAX_DESC);
SYSCTL_PROC(_net_inet_sctp, OID_AUTO, valid_cookie_life, CTLTYPE_INT | CTLFLAG_RW,
&sctp_valid_cookie_life_default, 0, sysctl_sctp_check, "IU",
SCTPCTL_VALID_COOKIE_LIFE_DESC);
SYSCTL_PROC(_net_inet_sctp, OID_AUTO, init_rtx_max, CTLTYPE_INT | CTLFLAG_RW,
&sctp_init_rtx_max_default, 0, sysctl_sctp_check, "IU",
SCTPCTL_INIT_RTX_MAX_DESC);
SYSCTL_PROC(_net_inet_sctp, OID_AUTO, assoc_rtx_max, CTLTYPE_INT | CTLFLAG_RW,
&sctp_assoc_rtx_max_default, 0, sysctl_sctp_check, "IU",
SCTPCTL_ASSOC_RTX_MAX_DESC);
SYSCTL_PROC(_net_inet_sctp, OID_AUTO, path_rtx_max, CTLTYPE_INT | CTLFLAG_RW,
&sctp_path_rtx_max_default, 0, sysctl_sctp_check, "IU",
SCTPCTL_PATH_RTX_MAX_DESC);
SYSCTL_PROC(_net_inet_sctp, OID_AUTO, add_more_on_output, CTLTYPE_INT | CTLFLAG_RW,
&sctp_add_more_threshold, 0, sysctl_sctp_check, "IU",
SCTPCTL_ADD_MORE_ON_OUTPUT_DESC);
SYSCTL_PROC(_net_inet_sctp, OID_AUTO, outgoing_streams, CTLTYPE_INT | CTLFLAG_RW,
&sctp_nr_outgoing_streams_default, 0, sysctl_sctp_check, "IU",
SCTPCTL_OUTGOING_STREAMS_DESC);
SYSCTL_PROC(_net_inet_sctp, OID_AUTO, cmt_on_off, CTLTYPE_INT | CTLFLAG_RW,
&sctp_cmt_on_off, 0, sysctl_sctp_check, "IU",
SCTPCTL_CMT_ON_OFF_DESC);
SYSCTL_PROC(_net_inet_sctp, OID_AUTO, cmt_use_dac, CTLTYPE_INT | CTLFLAG_RW,
&sctp_cmt_use_dac, 0, sysctl_sctp_check, "IU",
SCTPCTL_CMT_USE_DAC_DESC);
SYSCTL_PROC(_net_inet_sctp, OID_AUTO, cmt_pf, CTLTYPE_INT | CTLFLAG_RW,
&sctp_cmt_pf, 0, sysctl_sctp_check, "IU",
SCTPCTL_CMT_PF_DESC);
SYSCTL_PROC(_net_inet_sctp, OID_AUTO, cwnd_maxburst, CTLTYPE_INT | CTLFLAG_RW,
&sctp_use_cwnd_based_maxburst, 0, sysctl_sctp_check, "IU",
SCTPCTL_CWND_MAXBURST_DESC);
SYSCTL_PROC(_net_inet_sctp, OID_AUTO, early_fast_retran, CTLTYPE_INT | CTLFLAG_RW,
&sctp_early_fr, 0, sysctl_sctp_check, "IU",
SCTPCTL_EARLY_FAST_RETRAN_DESC);
SYSCTL_PROC(_net_inet_sctp, OID_AUTO, early_fast_retran_msec, CTLTYPE_INT | CTLFLAG_RW,
&sctp_early_fr_msec, 0, sysctl_sctp_check, "IU",
SCTPCTL_EARLY_FAST_RETRAN_MSEC_DESC);
SYSCTL_PROC(_net_inet_sctp, OID_AUTO, asconf_auth_nochk, CTLTYPE_INT | CTLFLAG_RW,
&sctp_asconf_auth_nochk, 0, sysctl_sctp_check, "IU",
SCTPCTL_ASCONF_AUTH_NOCHK_DESC);
SYSCTL_PROC(_net_inet_sctp, OID_AUTO, auth_disable, CTLTYPE_INT | CTLFLAG_RW,
&sctp_auth_disable, 0, sysctl_sctp_check, "IU",
SCTPCTL_AUTH_DISABLE_DESC);
SYSCTL_PROC(_net_inet_sctp, OID_AUTO, nat_friendly, CTLTYPE_INT | CTLFLAG_RW,
&sctp_nat_friendly, 0, sysctl_sctp_check, "IU",
SCTPCTL_NAT_FRIENDLY_DESC);
SYSCTL_PROC(_net_inet_sctp, OID_AUTO, abc_l_var, CTLTYPE_INT | CTLFLAG_RW,
&sctp_L2_abc_variable, 0, sysctl_sctp_check, "IU",
SCTPCTL_ABC_L_VAR_DESC);
SYSCTL_PROC(_net_inet_sctp, OID_AUTO, max_chained_mbufs, CTLTYPE_INT | CTLFLAG_RW,
&sctp_mbuf_threshold_count, 0, sysctl_sctp_check, "IU",
SCTPCTL_MAX_CHAINED_MBUFS_DESC);
SYSCTL_PROC(_net_inet_sctp, OID_AUTO, do_sctp_drain, CTLTYPE_INT | CTLFLAG_RW,
&sctp_do_drain, 0, sysctl_sctp_check, "IU",
SCTPCTL_DO_SCTP_DRAIN_DESC);
SYSCTL_PROC(_net_inet_sctp, OID_AUTO, hb_max_burst, CTLTYPE_INT | CTLFLAG_RW,
&sctp_hb_maxburst, 0, sysctl_sctp_check, "IU",
SCTPCTL_HB_MAX_BURST_DESC);
SYSCTL_PROC(_net_inet_sctp, OID_AUTO, abort_at_limit, CTLTYPE_INT | CTLFLAG_RW,
&sctp_abort_if_one_2_one_hits_limit, 0, sysctl_sctp_check, "IU",
SCTPCTL_ABORT_AT_LIMIT_DESC);
SYSCTL_PROC(_net_inet_sctp, OID_AUTO, strict_data_order, CTLTYPE_INT | CTLFLAG_RW,
&sctp_strict_data_order, 0, sysctl_sctp_check, "IU",
SCTPCTL_STRICT_DATA_ORDER_DESC);
SYSCTL_PROC(_net_inet_sctp, OID_AUTO, min_residual, CTLTYPE_INT | CTLFLAG_RW,
&sctp_min_residual, 0, sysctl_sctp_check, "IU",
SCTPCTL_MIN_RESIDUAL_DESC);
SYSCTL_PROC(_net_inet_sctp, OID_AUTO, max_retran_chunk, CTLTYPE_INT | CTLFLAG_RW,
&sctp_max_retran_chunk, 0, sysctl_sctp_check, "IU",
SCTPCTL_MAX_RETRAN_CHUNK_DESC);
SYSCTL_PROC(_net_inet_sctp, OID_AUTO, log_level, CTLTYPE_INT | CTLFLAG_RW,
&sctp_logging_level, 0, sysctl_sctp_check, "IU",
SCTPCTL_LOGGING_LEVEL_DESC);
SYSCTL_PROC(_net_inet_sctp, OID_AUTO, default_cc_module, CTLTYPE_INT | CTLFLAG_RW,
&sctp_default_cc_module, 0, sysctl_sctp_check, "IU",
SCTPCTL_DEFAULT_CC_MODULE_DESC);
SYSCTL_PROC(_net_inet_sctp, OID_AUTO, default_frag_interleave, CTLTYPE_INT | CTLFLAG_RW,
&sctp_default_frag_interleave, 0, sysctl_sctp_check, "IU",
SCTPCTL_DEFAULT_FRAG_INTERLEAVE_DESC);
#if defined(__FreeBSD__) || defined(SCTP_APPLE_MOBILITY_BASE)
SYSCTL_PROC(_net_inet_sctp, OID_AUTO, mobility_base, CTLTYPE_INT | CTLFLAG_RW,
&sctp_mobility_base, 0, sysctl_sctp_check, "IU",
SCTPCTL_MOBILITY_BASE_DESC);
#endif
#if defined(__FreeBSD__) || defined(SCTP_APPLE_MOBILITY_FASTHANDOFF)
SYSCTL_PROC(_net_inet_sctp, OID_AUTO, mobility_fasthandoff, CTLTYPE_INT | CTLFLAG_RW,
&sctp_mobility_fasthandoff, 0, sysctl_sctp_check, "IU",
SCTPCTL_MOBILITY_FASTHANDOFF_DESC);
#endif
#if defined(SCTP_LOCAL_TRACE_BUF)
SYSCTL_STRUCT(_net_inet_sctp, OID_AUTO, log, CTLFLAG_RD,
&sctp_log, sctp_log,
"SCTP logging (struct sctp_log)");
#endif
SYSCTL_PROC(_net_inet_sctp, OID_AUTO, udp_tunneling_for_client_enable, CTLTYPE_INT | CTLFLAG_RW,
&sctp_udp_tunneling_for_client_enable, 0, sysctl_sctp_check, "IU",
SCTPCTL_UDP_TUNNELING_FOR_CLIENT_ENABLE_DESC);
SYSCTL_PROC(_net_inet_sctp, OID_AUTO, udp_tunneling_port, CTLTYPE_INT | CTLFLAG_RW,
&sctp_udp_tunneling_port, 0, sysctl_sctp_udp_tunneling_check, "IU",
SCTPCTL_UDP_TUNNELING_PORT_DESC);
#ifdef SCTP_DEBUG
SYSCTL_PROC(_net_inet_sctp, OID_AUTO, debug, CTLTYPE_INT | CTLFLAG_RW,
&sctp_debug_on, 0, sysctl_sctp_check, "IU",
SCTPCTL_DEBUG_DESC);
#endif /* SCTP_DEBUG */
SYSCTL_STRUCT(_net_inet_sctp, OID_AUTO, stats, CTLFLAG_RW,
&sctpstat, sctpstat,
"SCTP statistics (struct sctp_stat)");
SYSCTL_PROC(_net_inet_sctp, OID_AUTO, assoclist, CTLFLAG_RD,
0, 0, sctp_assoclist,
"S,xassoc", "List of active SCTP associations");
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