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7480de4305
freebsd/sys/netinet/sctp_os_bsd.h
Randall Stewart bff64a4db3 - fixed several places where we did not release INP locks. 
- 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
2007-04-03 11:15:32 +00:00

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/*-
* 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
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