139bc87fda
access plus timers. This makes the code more portable and able to change out the mbuf or timer system used more easily ;-) b) removal of all use of pkt-hdr's until only the places we need them (before ip_output routines). c) remove a bunch of code not needed due to <b> aka worrying about pkthdr's :-) d) There was one last reorder problem it looks where if a restart occur's and we release and relock (at the point where we setup our alias vtag) we would end up possibly getting the wrong TSN in place. The code that fixed the TSN's just needed to be shifted around BEFORE the release of the lock.. also code that set the state (since this also could contribute). Approved by: gnn
158 lines
5.2 KiB
C
158 lines
5.2 KiB
C
/*-
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* Copyright (c) 2006, 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 <sys/random.h>
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/*
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*
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*/
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typedef struct mbuf *sctp_mbuf_t;
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#define USER_ADDR_NULL (NULL) /* FIX ME: temp */
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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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/*
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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) \
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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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/*
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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_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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#define SCTP_READ_RANDOM(buf, len) read_random(buf, len)
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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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#endif
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