485 lines
15 KiB
C
485 lines
15 KiB
C
/*-
|
|
* SPDX-License-Identifier: BSD-3-Clause
|
|
*
|
|
* Copyright (c) 2006-2007, by Cisco Systems, Inc. All rights reserved.
|
|
* Copyright (c) 2008-2012, by Randall Stewart. All rights reserved.
|
|
* Copyright (c) 2008-2012, by Michael Tuexen. All rights reserved.
|
|
*
|
|
* Redistribution and use in source and binary forms, with or without
|
|
* modification, are permitted provided that the following conditions are met:
|
|
*
|
|
* a) Redistributions of source code must retain the above copyright notice,
|
|
* this list of conditions and the following disclaimer.
|
|
*
|
|
* b) Redistributions in binary form must reproduce the above copyright
|
|
* notice, this list of conditions and the following disclaimer in
|
|
* the documentation and/or other materials provided with the distribution.
|
|
*
|
|
* c) Neither the name of Cisco Systems, Inc. nor the names of its
|
|
* contributors may be used to endorse or promote products derived
|
|
* from this software without specific prior written permission.
|
|
*
|
|
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
|
|
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
|
|
* THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
|
|
* ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
|
|
* LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
|
|
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
|
|
* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
|
|
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
|
|
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
|
|
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
|
|
* THE POSSIBILITY OF SUCH DAMAGE.
|
|
*/
|
|
|
|
#include <sys/cdefs.h>
|
|
__FBSDID("$FreeBSD$");
|
|
|
|
#ifndef _NETINET_SCTP_OS_BSD_H_
|
|
#define _NETINET_SCTP_OS_BSD_H_
|
|
/*
|
|
* includes
|
|
*/
|
|
#include "opt_inet6.h"
|
|
#include "opt_inet.h"
|
|
#include "opt_sctp.h"
|
|
|
|
#include <sys/param.h>
|
|
#include <sys/domain.h>
|
|
#include <sys/eventhandler.h>
|
|
#include <sys/ktr.h>
|
|
#include <sys/systm.h>
|
|
#include <sys/malloc.h>
|
|
#include <sys/module.h>
|
|
#include <sys/kernel.h>
|
|
#include <sys/sysctl.h>
|
|
#include <sys/mbuf.h>
|
|
#include <sys/protosw.h>
|
|
#include <sys/socket.h>
|
|
#include <sys/socketvar.h>
|
|
#include <sys/jail.h>
|
|
#include <sys/sysctl.h>
|
|
#include <sys/resourcevar.h>
|
|
#include <sys/uio.h>
|
|
#include <sys/lock.h>
|
|
#include <sys/rwlock.h>
|
|
#include <sys/kthread.h>
|
|
#include <sys/priv.h>
|
|
#include <sys/random.h>
|
|
#include <sys/limits.h>
|
|
#include <sys/queue.h>
|
|
#include <machine/cpu.h>
|
|
|
|
#include <net/if.h>
|
|
#include <net/if_types.h>
|
|
#include <net/if_var.h>
|
|
#include <net/route.h>
|
|
#include <net/route/nhop.h>
|
|
#include <net/vnet.h>
|
|
|
|
#include <netinet/in.h>
|
|
#include <netinet/in_systm.h>
|
|
#include <netinet/ip.h>
|
|
#include <netinet/in_fib.h>
|
|
#include <netinet/in_pcb.h>
|
|
#include <netinet/in_var.h>
|
|
#include <netinet/ip_var.h>
|
|
#include <netinet/ip_icmp.h>
|
|
#include <netinet/icmp_var.h>
|
|
|
|
#ifdef INET6
|
|
#include <netinet/ip6.h>
|
|
#include <netinet6/in6_fib.h>
|
|
#include <netinet6/ip6_var.h>
|
|
#include <netinet6/in6_pcb.h>
|
|
#include <netinet6/ip6protosw.h>
|
|
#include <netinet6/nd6.h>
|
|
#include <netinet6/scope6_var.h>
|
|
#endif /* INET6 */
|
|
|
|
#include <netinet/ip_options.h>
|
|
|
|
#include <crypto/sha1.h>
|
|
#include <crypto/sha2/sha256.h>
|
|
|
|
/* Declare all the malloc names for all the various mallocs */
|
|
MALLOC_DECLARE(SCTP_M_MAP);
|
|
MALLOC_DECLARE(SCTP_M_STRMI);
|
|
MALLOC_DECLARE(SCTP_M_STRMO);
|
|
MALLOC_DECLARE(SCTP_M_ASC_ADDR);
|
|
MALLOC_DECLARE(SCTP_M_ASC_IT);
|
|
MALLOC_DECLARE(SCTP_M_AUTH_CL);
|
|
MALLOC_DECLARE(SCTP_M_AUTH_KY);
|
|
MALLOC_DECLARE(SCTP_M_AUTH_HL);
|
|
MALLOC_DECLARE(SCTP_M_AUTH_IF);
|
|
MALLOC_DECLARE(SCTP_M_STRESET);
|
|
MALLOC_DECLARE(SCTP_M_CMSG);
|
|
MALLOC_DECLARE(SCTP_M_COPYAL);
|
|
MALLOC_DECLARE(SCTP_M_VRF);
|
|
MALLOC_DECLARE(SCTP_M_IFA);
|
|
MALLOC_DECLARE(SCTP_M_IFN);
|
|
MALLOC_DECLARE(SCTP_M_TIMW);
|
|
MALLOC_DECLARE(SCTP_M_MVRF);
|
|
MALLOC_DECLARE(SCTP_M_ITER);
|
|
MALLOC_DECLARE(SCTP_M_SOCKOPT);
|
|
MALLOC_DECLARE(SCTP_M_MCORE);
|
|
|
|
#if defined(SCTP_LOCAL_TRACE_BUF)
|
|
|
|
#define SCTP_GET_CYCLECOUNT get_cyclecount()
|
|
#define SCTP_CTR6 sctp_log_trace
|
|
|
|
#else
|
|
#define SCTP_CTR6 CTR6
|
|
#endif
|
|
|
|
/*
|
|
* Macros to expand out globals defined by various modules
|
|
* to either a real global or a virtualized instance of one,
|
|
* depending on whether VIMAGE is defined.
|
|
*/
|
|
/* then define the macro(s) that hook into the vimage macros */
|
|
#define MODULE_GLOBAL(__SYMBOL) V_##__SYMBOL
|
|
|
|
#define V_system_base_info VNET(system_base_info)
|
|
#define SCTP_BASE_INFO(__m) V_system_base_info.sctppcbinfo.__m
|
|
#define SCTP_BASE_STATS V_system_base_info.sctpstat
|
|
#define SCTP_BASE_STAT(__m) V_system_base_info.sctpstat.__m
|
|
#define SCTP_BASE_SYSCTL(__m) V_system_base_info.sctpsysctl.__m
|
|
#define SCTP_BASE_VAR(__m) V_system_base_info.__m
|
|
|
|
#define SCTP_PRINTF(params...) printf(params)
|
|
#if defined(SCTP_DEBUG)
|
|
#define SCTPDBG(level, params...) \
|
|
{ \
|
|
do { \
|
|
if (SCTP_BASE_SYSCTL(sctp_debug_on) & level ) { \
|
|
SCTP_PRINTF(params); \
|
|
} \
|
|
} while (0); \
|
|
}
|
|
#define SCTPDBG_ADDR(level, addr) \
|
|
{ \
|
|
do { \
|
|
if (SCTP_BASE_SYSCTL(sctp_debug_on) & level ) { \
|
|
sctp_print_address(addr); \
|
|
} \
|
|
} while (0); \
|
|
}
|
|
#else
|
|
#define SCTPDBG(level, params...)
|
|
#define SCTPDBG_ADDR(level, addr)
|
|
#endif
|
|
|
|
#ifdef SCTP_LTRACE_CHUNKS
|
|
#define SCTP_LTRACE_CHK(a, b, c, d) if(SCTP_BASE_SYSCTL(sctp_logging_level) & SCTP_LTRACE_CHUNK_ENABLE) SCTP_CTR6(KTR_SUBSYS, "SCTP:%d[%d]:%x-%x-%x-%x", SCTP_LOG_CHUNK_PROC, 0, a, b, c, d)
|
|
#else
|
|
#define SCTP_LTRACE_CHK(a, b, c, d)
|
|
#endif
|
|
|
|
#ifdef SCTP_LTRACE_ERRORS
|
|
#define SCTP_LTRACE_ERR_RET_PKT(m, inp, stcb, net, file, err) \
|
|
if (SCTP_BASE_SYSCTL(sctp_logging_level) & SCTP_LTRACE_ERROR_ENABLE) \
|
|
SCTP_PRINTF("mbuf:%p inp:%p stcb:%p net:%p file:%x line:%d error:%d\n", \
|
|
m, inp, stcb, net, file, __LINE__, err);
|
|
#define SCTP_LTRACE_ERR_RET(inp, stcb, net, file, err) \
|
|
if (SCTP_BASE_SYSCTL(sctp_logging_level) & SCTP_LTRACE_ERROR_ENABLE) \
|
|
SCTP_PRINTF("inp:%p stcb:%p net:%p file:%x line:%d error:%d\n", \
|
|
inp, stcb, net, file, __LINE__, err);
|
|
#else
|
|
#define SCTP_LTRACE_ERR_RET_PKT(m, inp, stcb, net, file, err)
|
|
#define SCTP_LTRACE_ERR_RET(inp, stcb, net, file, err)
|
|
#endif
|
|
|
|
/*
|
|
* Local address and interface list handling
|
|
*/
|
|
#define SCTP_MAX_VRF_ID 0
|
|
#define SCTP_SIZE_OF_VRF_HASH 3
|
|
#define SCTP_IFNAMSIZ IFNAMSIZ
|
|
#define SCTP_DEFAULT_VRFID 0
|
|
#define SCTP_VRF_ADDR_HASH_SIZE 16
|
|
#define SCTP_VRF_IFN_HASH_SIZE 3
|
|
#define SCTP_INIT_VRF_TABLEID(vrf)
|
|
|
|
#define SCTP_IFN_IS_IFT_LOOP(ifn) ((ifn)->ifn_type == IFT_LOOP)
|
|
#define SCTP_ROUTE_IS_REAL_LOOP(ro) ((ro)->ro_nh && (ro)->ro_nh->nh_ifa && (ro)->ro_nh->nh_ifa->ifa_ifp && (ro)->ro_nh->nh_ifa->ifa_ifp->if_type == IFT_LOOP)
|
|
|
|
/*
|
|
* Access to IFN's to help with src-addr-selection
|
|
*/
|
|
/* This could return VOID if the index works but for BSD we provide both. */
|
|
#define SCTP_GET_IFN_VOID_FROM_ROUTE(ro) (void *)ro->ro_nh->nh_ifp
|
|
#define SCTP_GET_IF_INDEX_FROM_ROUTE(ro) (ro)->ro_nh->nh_ifp->if_index
|
|
#define SCTP_ROUTE_HAS_VALID_IFN(ro) ((ro)->ro_nh && (ro)->ro_nh->nh_ifp)
|
|
|
|
/*
|
|
* general memory allocation
|
|
*/
|
|
#define SCTP_MALLOC(var, type, size, name) \
|
|
do { \
|
|
var = (type)malloc(size, name, M_NOWAIT); \
|
|
} while (0)
|
|
|
|
#define SCTP_FREE(var, type) free(var, type)
|
|
|
|
#define SCTP_MALLOC_SONAME(var, type, size) \
|
|
do { \
|
|
var = (type)malloc(size, M_SONAME, M_WAITOK | M_ZERO); \
|
|
} while (0)
|
|
|
|
#define SCTP_FREE_SONAME(var) free(var, M_SONAME)
|
|
|
|
#define SCTP_PROCESS_STRUCT struct proc *
|
|
|
|
/*
|
|
* zone allocation functions
|
|
*/
|
|
#include <vm/uma.h>
|
|
|
|
/* SCTP_ZONE_INIT: initialize the zone */
|
|
typedef struct uma_zone *sctp_zone_t;
|
|
#define SCTP_ZONE_INIT(zone, name, size, number) { \
|
|
zone = uma_zcreate(name, size, NULL, NULL, NULL, NULL, UMA_ALIGN_PTR,\
|
|
0); \
|
|
uma_zone_set_max(zone, number); \
|
|
}
|
|
|
|
#define SCTP_ZONE_DESTROY(zone) uma_zdestroy(zone)
|
|
|
|
/* SCTP_ZONE_GET: allocate element from the zone */
|
|
#define SCTP_ZONE_GET(zone, type) \
|
|
(type *)uma_zalloc(zone, M_NOWAIT);
|
|
|
|
/* SCTP_ZONE_FREE: free element from the zone */
|
|
#define SCTP_ZONE_FREE(zone, element) \
|
|
uma_zfree(zone, element);
|
|
|
|
#define SCTP_HASH_INIT(size, hashmark) hashinit_flags(size, M_PCB, hashmark, HASH_NOWAIT)
|
|
#define SCTP_HASH_FREE(table, hashmark) hashdestroy(table, M_PCB, hashmark)
|
|
|
|
#define SCTP_M_COPYM m_copym
|
|
|
|
/*
|
|
* timers
|
|
*/
|
|
#include <sys/callout.h>
|
|
typedef struct callout sctp_os_timer_t;
|
|
|
|
#define SCTP_OS_TIMER_INIT(tmr) callout_init(tmr, 1)
|
|
/*
|
|
* NOTE: The next two shouldn't be called directly outside of sctp_timer_start()
|
|
* and sctp_timer_stop(), since they don't handle incrementing/decrementing
|
|
* relevant reference counts.
|
|
*/
|
|
#define SCTP_OS_TIMER_START callout_reset
|
|
#define SCTP_OS_TIMER_STOP callout_stop
|
|
#define SCTP_OS_TIMER_STOP_DRAIN callout_drain
|
|
#define SCTP_OS_TIMER_PENDING callout_pending
|
|
#define SCTP_OS_TIMER_ACTIVE callout_active
|
|
#define SCTP_OS_TIMER_DEACTIVATE callout_deactivate
|
|
|
|
#define sctp_get_tick_count() (ticks)
|
|
|
|
#define SCTP_UNUSED __attribute__((unused))
|
|
|
|
/*
|
|
* Functions
|
|
*/
|
|
/* Mbuf manipulation and access macros */
|
|
#define SCTP_BUF_LEN(m) (m->m_len)
|
|
#define SCTP_BUF_NEXT(m) (m->m_next)
|
|
#define SCTP_BUF_NEXT_PKT(m) (m->m_nextpkt)
|
|
#define SCTP_BUF_RESV_UF(m, size) m->m_data += size
|
|
#define SCTP_BUF_AT(m, size) m->m_data + size
|
|
#define SCTP_BUF_IS_EXTENDED(m) (m->m_flags & M_EXT)
|
|
#define SCTP_BUF_SIZE M_SIZE
|
|
#define SCTP_BUF_TYPE(m) (m->m_type)
|
|
#define SCTP_BUF_RECVIF(m) (m->m_pkthdr.rcvif)
|
|
#define SCTP_BUF_PREPEND M_PREPEND
|
|
|
|
#define SCTP_ALIGN_TO_END(m, len) M_ALIGN(m, len)
|
|
|
|
#define SCTP_SNPRINTF(...) snprintf(__VA_ARGS__)
|
|
|
|
/* We make it so if you have up to 4 threads
|
|
* writing based on the default size of
|
|
* the packet log 65 k, that would be
|
|
* 4 16k packets before we would hit
|
|
* a problem.
|
|
*/
|
|
#define SCTP_PKTLOG_WRITERS_NEED_LOCK 3
|
|
|
|
/*************************/
|
|
/* MTU */
|
|
/*************************/
|
|
#define SCTP_GATHER_MTU_FROM_IFN_INFO(ifn, ifn_index, af) ((struct ifnet *)ifn)->if_mtu
|
|
#define SCTP_GATHER_MTU_FROM_ROUTE(sctp_ifa, sa, nh) ((uint32_t)((nh != NULL) ? nh->nh_mtu : 0))
|
|
#define SCTP_GATHER_MTU_FROM_INTFC(sctp_ifn) ((sctp_ifn->ifn_p != NULL) ? ((struct ifnet *)(sctp_ifn->ifn_p))->if_mtu : 0)
|
|
|
|
/*************************/
|
|
/* These are for logging */
|
|
/*************************/
|
|
/* return the base ext data pointer */
|
|
#define SCTP_BUF_EXTEND_BASE(m) (m->m_ext.ext_buf)
|
|
/* return the refcnt of the data pointer */
|
|
#define SCTP_BUF_EXTEND_REFCNT(m) (*m->m_ext.ext_cnt)
|
|
/* return any buffer related flags, this is
|
|
* used beyond logging for apple only.
|
|
*/
|
|
#define SCTP_BUF_GET_FLAGS(m) (m->m_flags)
|
|
|
|
/* For BSD this just accesses the M_PKTHDR length
|
|
* so it operates on an mbuf with hdr flag. Other
|
|
* O/S's may have separate packet header and mbuf
|
|
* chain pointers.. thus the macro.
|
|
*/
|
|
#define SCTP_HEADER_TO_CHAIN(m) (m)
|
|
#define SCTP_DETACH_HEADER_FROM_CHAIN(m)
|
|
#define SCTP_HEADER_LEN(m) ((m)->m_pkthdr.len)
|
|
#define SCTP_GET_HEADER_FOR_OUTPUT(o_pak) 0
|
|
#define SCTP_RELEASE_HEADER(m)
|
|
#define SCTP_RELEASE_PKT(m) sctp_m_freem(m)
|
|
#define SCTP_ENABLE_UDP_CSUM(m) do { \
|
|
m->m_pkthdr.csum_flags = CSUM_UDP; \
|
|
m->m_pkthdr.csum_data = offsetof(struct udphdr, uh_sum); \
|
|
} while (0)
|
|
|
|
#define SCTP_GET_PKT_VRFID(m, vrf_id) ((vrf_id = SCTP_DEFAULT_VRFID) != SCTP_DEFAULT_VRFID)
|
|
|
|
/* Attach the chain of data into the sendable packet. */
|
|
#define SCTP_ATTACH_CHAIN(pak, m, packet_length) do { \
|
|
pak = m; \
|
|
pak->m_pkthdr.len = packet_length; \
|
|
} while(0)
|
|
|
|
/* Other m_pkthdr type things */
|
|
#define SCTP_IS_IT_BROADCAST(dst, m) ((m->m_flags & M_PKTHDR) ? in_broadcast(dst, m->m_pkthdr.rcvif) : 0)
|
|
#define SCTP_IS_IT_LOOPBACK(m) ((m->m_flags & M_PKTHDR) && ((m->m_pkthdr.rcvif == NULL) || (m->m_pkthdr.rcvif->if_type == IFT_LOOP)))
|
|
|
|
/* This converts any input packet header
|
|
* into the chain of data holders, for BSD
|
|
* its a NOP.
|
|
*/
|
|
|
|
/* get the v6 hop limit */
|
|
#define SCTP_GET_HLIM(inp, ro) in6_selecthlim(&inp->ip_inp.inp, (ro ? (ro->ro_nh ? (ro->ro_nh->nh_ifp) : (NULL)) : (NULL)));
|
|
|
|
/* is the endpoint v6only? */
|
|
#define SCTP_IPV6_V6ONLY(sctp_inpcb) ((sctp_inpcb)->ip_inp.inp.inp_flags & IN6P_IPV6_V6ONLY)
|
|
/* is the socket non-blocking? */
|
|
#define SCTP_SO_IS_NBIO(so) ((so)->so_state & SS_NBIO)
|
|
#define SCTP_SET_SO_NBIO(so) ((so)->so_state |= SS_NBIO)
|
|
#define SCTP_CLEAR_SO_NBIO(so) ((so)->so_state &= ~SS_NBIO)
|
|
/* get the socket type */
|
|
#define SCTP_SO_TYPE(so) ((so)->so_type)
|
|
/* Use a macro for renaming sb_cc to sb_acc.
|
|
* Initially sb_ccc was used, but this broke select() when used
|
|
* with SCTP sockets.
|
|
*/
|
|
#define sb_cc sb_acc
|
|
/* reserve sb space for a socket */
|
|
#define SCTP_SORESERVE(so, send, recv) soreserve(so, send, recv)
|
|
/* wakeup a socket */
|
|
#define SCTP_SOWAKEUP(so) wakeup(&(so)->so_timeo)
|
|
/* clear the socket buffer state */
|
|
#define SCTP_SB_CLEAR(sb) \
|
|
(sb).sb_cc = 0; \
|
|
(sb).sb_mb = NULL; \
|
|
(sb).sb_mbcnt = 0;
|
|
|
|
#define SCTP_SB_LIMIT_RCV(so) (SOLISTENING(so) ? so->sol_sbrcv_hiwat : so->so_rcv.sb_hiwat)
|
|
#define SCTP_SB_LIMIT_SND(so) (SOLISTENING(so) ? so->sol_sbsnd_hiwat : so->so_snd.sb_hiwat)
|
|
|
|
/*
|
|
* routes, output, etc.
|
|
*/
|
|
typedef struct route sctp_route_t;
|
|
|
|
#define SCTP_RTALLOC(ro, vrf_id, fibnum) \
|
|
{ \
|
|
if ((ro)->ro_nh == NULL) { \
|
|
(ro)->ro_nh = rib_lookup(fibnum, &(ro)->ro_dst, NHR_REF, 0); \
|
|
} \
|
|
}
|
|
|
|
/*
|
|
* SCTP protocol specific mbuf flags.
|
|
*/
|
|
#define M_NOTIFICATION M_PROTO1 /* SCTP notification */
|
|
|
|
/*
|
|
* IP output routines
|
|
*/
|
|
#define SCTP_IP_OUTPUT(result, o_pak, ro, stcb, vrf_id) \
|
|
{ \
|
|
int o_flgs = IP_RAWOUTPUT; \
|
|
struct sctp_tcb *local_stcb = stcb; \
|
|
if (local_stcb && \
|
|
local_stcb->sctp_ep && \
|
|
local_stcb->sctp_ep->sctp_socket) \
|
|
o_flgs |= local_stcb->sctp_ep->sctp_socket->so_options & SO_DONTROUTE; \
|
|
m_clrprotoflags(o_pak); \
|
|
result = ip_output(o_pak, NULL, ro, o_flgs, 0, NULL); \
|
|
}
|
|
|
|
#define SCTP_IP6_OUTPUT(result, o_pak, ro, ifp, stcb, vrf_id) \
|
|
{ \
|
|
struct sctp_tcb *local_stcb = stcb; \
|
|
m_clrprotoflags(o_pak); \
|
|
if (local_stcb && local_stcb->sctp_ep) \
|
|
result = ip6_output(o_pak, \
|
|
((struct inpcb *)(local_stcb->sctp_ep))->in6p_outputopts, \
|
|
(ro), 0, 0, ifp, NULL); \
|
|
else \
|
|
result = ip6_output(o_pak, NULL, (ro), 0, 0, ifp, NULL); \
|
|
}
|
|
|
|
struct mbuf *
|
|
sctp_get_mbuf_for_msg(unsigned int space_needed,
|
|
int want_header, int how, int allonebuf, int type);
|
|
|
|
/*
|
|
* SCTP AUTH
|
|
*/
|
|
#define SCTP_READ_RANDOM(buf, len) arc4rand(buf, len, 0)
|
|
|
|
/* map standard crypto API names */
|
|
#define SCTP_SHA1_CTX SHA1_CTX
|
|
#define SCTP_SHA1_INIT SHA1Init
|
|
#define SCTP_SHA1_UPDATE SHA1Update
|
|
#define SCTP_SHA1_FINAL(x,y) SHA1Final((caddr_t)x, y)
|
|
|
|
#define SCTP_SHA256_CTX SHA256_CTX
|
|
#define SCTP_SHA256_INIT SHA256_Init
|
|
#define SCTP_SHA256_UPDATE SHA256_Update
|
|
#define SCTP_SHA256_FINAL(x,y) SHA256_Final((caddr_t)x, y)
|
|
|
|
#define SCTP_DECREMENT_AND_CHECK_REFCOUNT(addr) (atomic_fetchadd_int(addr, -1) == 1)
|
|
#if defined(INVARIANTS)
|
|
#define SCTP_SAVE_ATOMIC_DECREMENT(addr, val) \
|
|
{ \
|
|
int32_t oldval; \
|
|
oldval = atomic_fetchadd_int(addr, -val); \
|
|
if (oldval < val) { \
|
|
panic("Counter goes negative"); \
|
|
} \
|
|
}
|
|
#else
|
|
#define SCTP_SAVE_ATOMIC_DECREMENT(addr, val) \
|
|
{ \
|
|
int32_t oldval; \
|
|
oldval = atomic_fetchadd_int(addr, -val); \
|
|
if (oldval < val) { \
|
|
*addr = 0; \
|
|
} \
|
|
}
|
|
#endif
|
|
|
|
#define SCTP_IS_LISTENING(inp) ((inp->sctp_flags & SCTP_PCB_FLAGS_ACCEPTING) != 0)
|
|
|
|
int sctp_syscalls_init(void);
|
|
int sctp_syscalls_uninit(void);
|
|
|
|
#endif
|