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- ZONE get now also take a type cast so it does the cast like mtod does. - New macro SCTP_LIST_EMPTY, which in bsd is just LIST_EMPTY - Removal of const in some of the static hmac functions (not needed) - Store length changes to allow for new fields in auth - Auth code updated to current draft (this should be the RFC version we think). - use uint8_t instead of u_char in LOOPBACK address comparison - Some u_int32_t converted to uint32_t (in crc code) - A bug was found in the mib counts for ordered/unordered count, this was fixed (was referencing a freed mbuf). - SCTP_ASOCLOG_OF_TSNS added (code will probably disappear after my testing completes. It allows us to keep a small log on each assoc of the last 40 TSN's in/out and stream assignment. It is NOT in options and so is only good for private builds. - Some CMT changes in prep for Jana fixing his problem with reneging when CMT is enabled (Concurrent Multipath Transfer = CMT). - Some missing mib stats added. - Correction to number of open assoc's count in mib - Correction to os_bsd.h to get right sha2 macros - Add of special AUTH_04 flags so you can compile the code with the old format (in case the peer does not yet support the latest auth code). - Nonce sum was incorrectly being set in when ecn_nonce was NOT on. - LOR in listen with implicit bind found and fixed. - Moved away from using mbuf's for socket options to using just data pointers. The mbufs were used to harmonize NetBSD code since both Net and Open used this method. We have decided to move away from that and more conform to FreeBSD style (which makes more sense). - Very very nasty bug found in some of my "debug" code. The cookie_how collision case tracking had an endless loop in it if you got a second retransmission of a cookie collision case. This would lock up a CPU .. ugly.. - auth function goes to using size_t instead of int which conforms to socketapi better - Found the nasty bug that happens after 9 days of testing.. you get the data chunk, deliver it and due to the reference to a ch-> that every now and then has been deleted (depending on the postion in the mbuf) you have an invalid ch->ch.flags.. and thus you don't advance the stream sequence number.. so you block the stream permanently. The fix is to make local variables of these guys and set them up before you have any chance of trimming the mbuf. - style fix in sctp_util.h, not sure how this got bad maybe in the last patch? (aka it may not be in the real source). - Found interesting bug when using the extended snd/rcv info where we would get an error on receiving with this. Thats because it was NOT padded to the same size as the snd_rcv info. We increase (add the pad) so the two structs are the same size in sctp_uio.h - In sctp_usrreq.c one of the most common things we did for socket options was to cast the pointer and validate the size. This as been macro-ized to help make the code more readable. - in sctputil.c two things, the socketapi class found a missing flag type (the next msg is a notification) and a missing scope recovery was also fixed. Reviewed by: gnn
257 lines
7.3 KiB
C
257 lines
7.3 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/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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* 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, 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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/*
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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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