bff64a4db3
- fixed a refcount bug in the new ifa structures. - use vrf's from default stcb or inp whenever possible. - Address limits raised to account for a full IP fragmented packet (1000 addresses). - flight size correcting updated to include one message only and to handle case where the peer does not cumack the next segment aka lists 1/1 in sack blocks.. - Various bad init/init-ack handling could cause a panic since we tried to unlock the destroyed mutex. Fixes so we properly exit when we need to destroy an assoc. (Found by Cisco DevTest team :D) - name rename in src-addr-selection from pass to sifa. - route structure typedef'd to allow different platforms and updated into sctp_os_bsd file. - Max retransmissions a chunk can be made added. Reviewed by: gnn
304 lines
8.8 KiB
C
304 lines
8.8 KiB
C
/*-
|
|
* Copyright (c) 2006-2007, 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("$FreeBSD$");
|
|
#ifndef __sctp_os_bsd_h__
|
|
#define __sctp_os_bsd_h__
|
|
/*
|
|
* includes
|
|
*/
|
|
#include "opt_ipsec.h"
|
|
#include "opt_compat.h"
|
|
#include "opt_inet6.h"
|
|
#include "opt_inet.h"
|
|
#include "opt_sctp.h"
|
|
#include <sys/param.h>
|
|
#include <sys/systm.h>
|
|
#include <sys/malloc.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/sysctl.h>
|
|
#include <sys/resourcevar.h>
|
|
#include <sys/uio.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 <netinet/in.h>
|
|
#include <netinet/in_systm.h>
|
|
#include <netinet/ip.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 IPSEC
|
|
#include <netinet6/ipsec.h>
|
|
#include <netkey/key.h>
|
|
#endif /* IPSEC */
|
|
|
|
#ifdef INET6
|
|
#include <sys/domain.h>
|
|
#ifdef IPSEC
|
|
#include <netinet6/ipsec6.h>
|
|
#endif
|
|
#include <netinet/ip6.h>
|
|
#include <netinet6/ip6_var.h>
|
|
#include <netinet6/in6_pcb.h>
|
|
#include <netinet/icmp6.h>
|
|
#include <netinet6/ip6protosw.h>
|
|
#include <netinet6/nd6.h>
|
|
#include <netinet6/scope6_var.h>
|
|
#endif /* INET6 */
|
|
|
|
|
|
#include <netinet/ip_options.h>
|
|
|
|
#ifndef in6pcb
|
|
#define in6pcb inpcb
|
|
#endif
|
|
|
|
|
|
|
|
/*
|
|
*
|
|
*/
|
|
#define USER_ADDR_NULL (NULL) /* FIX ME: temp */
|
|
#define SCTP_LIST_EMPTY(list) LIST_EMPTY(list)
|
|
|
|
/*
|
|
* 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_HASH_SIZE 16
|
|
|
|
|
|
#define SCTP_IFN_IS_IFT_LOOP(ifn) ((ifn)->ifn_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_rt->rt_ifp
|
|
#define SCTP_GET_IF_INDEX_FROM_ROUTE(ro) ro->ro_rt->rt_ifp->if_index
|
|
|
|
/*
|
|
* general memory allocation
|
|
*/
|
|
#define SCTP_MALLOC(var, type, size, name) \
|
|
do { \
|
|
MALLOC(var, type, size, M_PCB, M_NOWAIT); \
|
|
} while (0)
|
|
|
|
#define SCTP_FREE(var) FREE(var, M_PCB)
|
|
|
|
#define SCTP_MALLOC_SONAME(var, type, size) \
|
|
do { \
|
|
MALLOC(var, type, 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 UMA_ZFLAG_FULL 0x0020
|
|
#define SCTP_ZONE_INIT(zone, name, size, number) { \
|
|
zone = uma_zcreate(name, size, NULL, NULL, NULL, NULL, UMA_ALIGN_PTR,\
|
|
UMA_ZFLAG_FULL); \
|
|
uma_zone_set_max(zone, number); \
|
|
}
|
|
|
|
/* 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)
|
|
#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
|
|
|
|
/*
|
|
* 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_EXTEND_SIZE(m) (m->m_ext.ext_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) if(m->m_flags & M_PKTHDR) { \
|
|
MH_ALIGN(m, len); \
|
|
} else if ((m->m_flags & M_EXT) == 0) { \
|
|
M_ALIGN(m, len); \
|
|
}
|
|
|
|
/*************************/
|
|
/* 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.ref_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 seperate packet header and mbuf
|
|
* chain pointers.. thus the macro.
|
|
*/
|
|
#define SCTP_HEADER_TO_CHAIN(m) (m)
|
|
#define SCTP_HEADER_LEN(m) (m->m_pkthdr.len)
|
|
#define SCTP_GET_HEADER_FOR_OUTPUT(len) sctp_get_mbuf_for_msg(len, 1, M_DONTWAIT, 1, MT_DATA)
|
|
|
|
/* Attach the chain of data into the sendable packet. */
|
|
#define SCTP_ATTACH_CHAIN(pak, m, packet_length) do { \
|
|
pak->m_next = m; \
|
|
pak->m_pkthdr.len = packet_length; \
|
|
} while(0)
|
|
|
|
/* Other m_pkthdr type things */
|
|
#define SCTP_IS_IT_BROADCAST(dst, m) in_broadcast(dst, m->m_pkthdr.rcvif)
|
|
#define SCTP_IS_IT_LOOPBACK(m) ((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.
|
|
*/
|
|
#define SCTP_PAK_TO_BUF(i_pak) (i_pak)
|
|
|
|
/* Macro's for getting length from V6/V4 header */
|
|
#define SCTP_GET_IPV4_LENGTH(iph) (iph->ip_len)
|
|
#define SCTP_GET_IPV6_LENGTH(ip6) (ntohs(ip6->ip6_plen))
|
|
|
|
/* is the endpoint v6only? */
|
|
#define SCTP_IPV6_V6ONLY(inp) (((struct inpcb *)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)
|
|
/* reserve sb space for a socket */
|
|
#define SCTP_SORESERVE(so, send, recv) soreserve(so, send, recv)
|
|
/* 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) so->so_rcv.sb_hiwat
|
|
#define SCTP_SB_LIMIT_SND(so) so->so_snd.sb_hiwat
|
|
|
|
/*
|
|
* routes, output, etc.
|
|
*/
|
|
typedef struct route sctp_route_t;
|
|
|
|
|
|
/*
|
|
* SCTP AUTH
|
|
*/
|
|
#define HAVE_SHA2
|
|
|
|
#define SCTP_READ_RANDOM(buf, len) read_random(buf, len)
|
|
|
|
#ifdef USE_SCTP_SHA1
|
|
#include <netinet/sctp_sha1.h>
|
|
#else
|
|
#include <crypto/sha1.h>
|
|
/* map standard crypto API names */
|
|
#define SHA1_Init SHA1Init
|
|
#define SHA1_Update SHA1Update
|
|
#define SHA1_Final(x,y) SHA1Final((caddr_t)x, y)
|
|
#endif
|
|
|
|
#if defined(HAVE_SHA2)
|
|
#include <crypto/sha2/sha2.h>
|
|
#endif
|
|
|
|
#include <sys/md5.h>
|
|
/* map standard crypto API names */
|
|
#define MD5_Init MD5Init
|
|
#define MD5_Update MD5Update
|
|
#define MD5_Final MD5Final
|
|
|
|
#endif
|