62c1ff9c48
shutdown which caused extra abort from peer. - RTT time calculation was not being done in express sack handling since it refered to an unused variable (rto_pending). Removed variable. - socket buffer high water access macro-ized.
293 lines
8.5 KiB
C
293 lines
8.5 KiB
C
/*-
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* Copyright (c) 2006-2007, Cisco Systems, Inc. All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions are met:
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*
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* a) Redistributions of source code must retain the above copyright notice,
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* this list of conditions and the following disclaimer.
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*
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* b) Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in
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* the documentation and/or other materials provided with the distribution.
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*
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* c) Neither the name of Cisco Systems, Inc. nor the names of its
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* contributors may be used to endorse or promote products derived
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* from this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
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* THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
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* LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
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* THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#include <sys/cdefs.h>
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__FBSDID("$FreeBSD$");
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#ifndef __sctp_os_bsd_h__
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#define __sctp_os_bsd_h__
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/*
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* includes
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*/
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#include "opt_ipsec.h"
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#include "opt_compat.h"
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#include "opt_inet6.h"
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#include "opt_inet.h"
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#include "opt_sctp.h"
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#include <sys/param.h>
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#include <sys/systm.h>
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#include <sys/malloc.h>
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#include <sys/kernel.h>
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#include <sys/sysctl.h>
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#include <sys/mbuf.h>
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#include <sys/protosw.h>
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#include <sys/socket.h>
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#include <sys/socketvar.h>
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#include <sys/sysctl.h>
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#include <sys/resourcevar.h>
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#include <sys/uio.h>
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#include <sys/kthread.h>
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#include <sys/priv.h>
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#include <sys/random.h>
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#include <sys/limits.h>
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#include <sys/queue.h>
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#include <machine/cpu.h>
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#include <net/if.h>
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#include <net/if_types.h>
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#include <net/if_var.h>
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#include <net/route.h>
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#include <netinet/in.h>
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#include <netinet/in_systm.h>
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#include <netinet/ip.h>
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#include <netinet/in_pcb.h>
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#include <netinet/in_var.h>
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#include <netinet/ip_var.h>
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#include <netinet/ip_icmp.h>
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#include <netinet/icmp_var.h>
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#ifdef IPSEC
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#include <netinet6/ipsec.h>
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#include <netkey/key.h>
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#endif /* IPSEC */
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#ifdef INET6
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#include <sys/domain.h>
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#ifdef IPSEC
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#include <netinet6/ipsec6.h>
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#endif
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#include <netinet/ip6.h>
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#include <netinet6/ip6_var.h>
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#include <netinet6/in6_pcb.h>
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#include <netinet/icmp6.h>
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#include <netinet6/ip6protosw.h>
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#include <netinet6/nd6.h>
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#include <netinet6/scope6_var.h>
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#endif /* INET6 */
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#include <netinet/ip_options.h>
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#ifndef in6pcb
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#define in6pcb inpcb
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#endif
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/*
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*
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*/
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#define USER_ADDR_NULL (NULL) /* FIX ME: temp */
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#define SCTP_LIST_EMPTY(list) LIST_EMPTY(list)
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/*
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* Local address and interface list handling
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*/
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#define SCTP_MAX_VRF_ID 0
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#define SCTP_SIZE_OF_VRF_HASH 3
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#define SCTP_IFNAMSIZ IFNAMSIZ
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#define SCTP_DEFAULT_VRFID 0
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#define SCTP_VRF_HASH_SIZE 16
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#define SCTP_IFN_IS_IFT_LOOP(ifn) ((ifn)->ifn_type == IFT_LOOP)
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/*
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* Access to IFN's to help with src-addr-selection
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*/
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/* This could return VOID if the index works but for BSD we provide both. */
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#define SCTP_GET_IFN_VOID_FROM_ROUTE(ro) (void *)ro->ro_rt->rt_ifp
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#define SCTP_GET_IF_INDEX_FROM_ROUTE(ro) ro->ro_rt->rt_ifp->if_index
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/*
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* general memory allocation
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*/
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#define SCTP_MALLOC(var, type, size, name) \
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do { \
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MALLOC(var, type, size, M_PCB, M_NOWAIT); \
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} while (0)
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#define SCTP_FREE(var) FREE(var, M_PCB)
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#define SCTP_MALLOC_SONAME(var, type, size) \
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do { \
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MALLOC(var, type, size, M_SONAME, M_WAITOK | M_ZERO); \
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} while (0)
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#define SCTP_FREE_SONAME(var) FREE(var, M_SONAME)
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#define SCTP_PROCESS_STRUCT struct proc *
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/*
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* zone allocation functions
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*/
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#include <vm/uma.h>
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/* SCTP_ZONE_INIT: initialize the zone */
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typedef struct uma_zone *sctp_zone_t;
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#define UMA_ZFLAG_FULL 0x0020
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#define SCTP_ZONE_INIT(zone, name, size, number) { \
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zone = uma_zcreate(name, size, NULL, NULL, NULL, NULL, UMA_ALIGN_PTR,\
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UMA_ZFLAG_FULL); \
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uma_zone_set_max(zone, number); \
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}
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/* SCTP_ZONE_GET: allocate element from the zone */
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#define SCTP_ZONE_GET(zone, type) \
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(type *)uma_zalloc(zone, M_NOWAIT);
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/* SCTP_ZONE_FREE: free element from the zone */
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#define SCTP_ZONE_FREE(zone, element) \
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uma_zfree(zone, element);
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#define SCTP_HASH_INIT(size, hashmark) hashinit_flags(size, M_PCB, hashmark, HASH_NOWAIT)
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#define SCTP_HASH_FREE(table, hashmark) hashdestroy(table, M_PCB, hashmark)
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#define SCTP_M_COPYM m_copym
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/*
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* timers
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*/
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#include <sys/callout.h>
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typedef struct callout sctp_os_timer_t;
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#define SCTP_OS_TIMER_INIT(tmr) callout_init(tmr, 1)
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#define SCTP_OS_TIMER_START callout_reset
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#define SCTP_OS_TIMER_STOP callout_stop
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#define SCTP_OS_TIMER_STOP_DRAIN callout_drain
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#define SCTP_OS_TIMER_PENDING callout_pending
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#define SCTP_OS_TIMER_ACTIVE callout_active
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#define SCTP_OS_TIMER_DEACTIVATE callout_deactivate
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/*
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* Functions
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*/
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/* Mbuf manipulation and access macros */
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#define SCTP_BUF_LEN(m) (m->m_len)
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#define SCTP_BUF_NEXT(m) (m->m_next)
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#define SCTP_BUF_NEXT_PKT(m) (m->m_nextpkt)
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#define SCTP_BUF_RESV_UF(m, size) m->m_data += size
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#define SCTP_BUF_AT(m, size) m->m_data + size
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#define SCTP_BUF_IS_EXTENDED(m) (m->m_flags & M_EXT)
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#define SCTP_BUF_EXTEND_SIZE(m) (m->m_ext.ext_size)
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#define SCTP_BUF_TYPE(m) (m->m_type)
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#define SCTP_BUF_RECVIF(m) (m->m_pkthdr.rcvif)
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#define SCTP_BUF_PREPEND M_PREPEND
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/*************************/
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/* These are for logging */
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/*************************/
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/* return the base ext data pointer */
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#define SCTP_BUF_EXTEND_BASE(m) (m->m_ext.ext_buf)
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/* return the refcnt of the data pointer */
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#define SCTP_BUF_EXTEND_REFCNT(m) (*m->m_ext.ref_cnt)
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/* return any buffer related flags, this is
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* used beyond logging for apple only.
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*/
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#define SCTP_BUF_GET_FLAGS(m) (m->m_flags)
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/* For BSD this just accesses the M_PKTHDR length
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* so it operates on an mbuf with hdr flag. Other
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* O/S's may have seperate packet header and mbuf
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* chain pointers.. thus the macro.
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*/
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#define SCTP_HEADER_TO_CHAIN(m) (m)
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#define SCTP_HEADER_LEN(m) (m->m_pkthdr.len)
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#define SCTP_GET_HEADER_FOR_OUTPUT(len) sctp_get_mbuf_for_msg(len, 1, M_DONTWAIT, 1, MT_DATA)
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/* Attach the chain of data into the sendable packet. */
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#define SCTP_ATTACH_CHAIN(pak, m, packet_length) do { \
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pak->m_next = m; \
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pak->m_pkthdr.len = packet_length; \
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} while(0)
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/* Other m_pkthdr type things */
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#define SCTP_IS_IT_BROADCAST(dst, m) in_broadcast(dst, m->m_pkthdr.rcvif)
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#define SCTP_IS_IT_LOOPBACK(m) ((m->m_pkthdr.rcvif == NULL) ||(m->m_pkthdr.rcvif->if_type == IFT_LOOP))
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/* This converts any input packet header
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* into the chain of data holders, for BSD
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* its a NOP.
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*/
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#define SCTP_PAK_TO_BUF(i_pak) (i_pak)
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/* Macro's for getting length from V6/V4 header */
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#define SCTP_GET_IPV4_LENGTH(iph) (iph->ip_len)
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#define SCTP_GET_IPV6_LENGTH(ip6) (ntohs(ip6->ip6_plen))
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/* is the endpoint v6only? */
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#define SCTP_IPV6_V6ONLY(inp) (((struct inpcb *)inp)->inp_flags & IN6P_IPV6_V6ONLY)
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/* is the socket non-blocking? */
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#define SCTP_SO_IS_NBIO(so) ((so)->so_state & SS_NBIO)
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#define SCTP_SET_SO_NBIO(so) ((so)->so_state |= SS_NBIO)
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#define SCTP_CLEAR_SO_NBIO(so) ((so)->so_state &= ~SS_NBIO)
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/* get the socket type */
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#define SCTP_SO_TYPE(so) ((so)->so_type)
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/* reserve sb space for a socket */
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#define SCTP_SORESERVE(so, send, recv) soreserve(so, send, recv)
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/* clear the socket buffer state */
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#define SCTP_SB_CLEAR(sb) \
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(sb).sb_cc = 0; \
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(sb).sb_mb = NULL; \
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(sb).sb_mbcnt = 0;
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#define SCTP_SB_LIMIT_RCV(so) so->so_rcv.sb_hiwat
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#define SCTP_SB_LIMIT_SND(so) so->so_snd.sb_hiwat
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/*
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* SCTP AUTH
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*/
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#define HAVE_SHA2
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#define SCTP_READ_RANDOM(buf, len) read_random(buf, len)
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#ifdef USE_SCTP_SHA1
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#include <netinet/sctp_sha1.h>
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#else
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#include <crypto/sha1.h>
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/* map standard crypto API names */
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#define SHA1_Init SHA1Init
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#define SHA1_Update SHA1Update
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#define SHA1_Final(x,y) SHA1Final((caddr_t)x, y)
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#endif
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#if defined(HAVE_SHA2)
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#include <crypto/sha2/sha2.h>
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#endif
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#include <sys/md5.h>
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/* map standard crypto API names */
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#define MD5_Init MD5Init
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#define MD5_Update MD5Update
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#define MD5_Final MD5Final
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#endif
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