xref: /freebsd/sys/netinet/sctp_os_bsd.h (revision dfb11ef895daed5363ff91b71173db2dc2fa3fab)
1f8829a4aSRandall Stewart /*-
2b1006367SRandall Stewart  * Copyright (c) 2006-2007, by Cisco Systems, Inc. All rights reserved.
3f8829a4aSRandall Stewart  *
4f8829a4aSRandall Stewart  * Redistribution and use in source and binary forms, with or without
5f8829a4aSRandall Stewart  * modification, are permitted provided that the following conditions are met:
6f8829a4aSRandall Stewart  *
7f8829a4aSRandall Stewart  * a) Redistributions of source code must retain the above copyright notice,
8f8829a4aSRandall Stewart  *   this list of conditions and the following disclaimer.
9f8829a4aSRandall Stewart  *
10f8829a4aSRandall Stewart  * b) Redistributions in binary form must reproduce the above copyright
11f8829a4aSRandall Stewart  *    notice, this list of conditions and the following disclaimer in
12f8829a4aSRandall Stewart  *   the documentation and/or other materials provided with the distribution.
13f8829a4aSRandall Stewart  *
14f8829a4aSRandall Stewart  * c) Neither the name of Cisco Systems, Inc. nor the names of its
15f8829a4aSRandall Stewart  *    contributors may be used to endorse or promote products derived
16f8829a4aSRandall Stewart  *    from this software without specific prior written permission.
17f8829a4aSRandall Stewart  *
18f8829a4aSRandall Stewart  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
19f8829a4aSRandall Stewart  * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
20f8829a4aSRandall Stewart  * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
21f8829a4aSRandall Stewart  * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
22f8829a4aSRandall Stewart  * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
23f8829a4aSRandall Stewart  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
24f8829a4aSRandall Stewart  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
25f8829a4aSRandall Stewart  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
26f8829a4aSRandall Stewart  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
27f8829a4aSRandall Stewart  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
28f8829a4aSRandall Stewart  * THE POSSIBILITY OF SUCH DAMAGE.
29f8829a4aSRandall Stewart  */
3073932c69SRandall Stewart #include <sys/cdefs.h>
31f8829a4aSRandall Stewart __FBSDID("$FreeBSD$");
32f8829a4aSRandall Stewart #ifndef __sctp_os_bsd_h__
33f8829a4aSRandall Stewart #define __sctp_os_bsd_h__
34f8829a4aSRandall Stewart /*
35f8829a4aSRandall Stewart  * includes
36f8829a4aSRandall Stewart  */
3793164cf9SRandall Stewart #include "opt_ipsec.h"
3893164cf9SRandall Stewart #include "opt_compat.h"
3993164cf9SRandall Stewart #include "opt_inet6.h"
4093164cf9SRandall Stewart #include "opt_inet.h"
4133553d6eSBjoern A. Zeeb #include "opt_route.h"
4293164cf9SRandall Stewart #include "opt_sctp.h"
43603724d3SBjoern A. Zeeb 
4493164cf9SRandall Stewart #include <sys/param.h>
4580fefe0aSRandall Stewart #include <sys/ktr.h>
4693164cf9SRandall Stewart #include <sys/systm.h>
4793164cf9SRandall Stewart #include <sys/malloc.h>
4893164cf9SRandall Stewart #include <sys/kernel.h>
4993164cf9SRandall Stewart #include <sys/sysctl.h>
5093164cf9SRandall Stewart #include <sys/mbuf.h>
5193164cf9SRandall Stewart #include <sys/protosw.h>
5293164cf9SRandall Stewart #include <sys/socket.h>
5393164cf9SRandall Stewart #include <sys/socketvar.h>
5418e198d3SRandall Stewart #include <sys/jail.h>
5593164cf9SRandall Stewart #include <sys/sysctl.h>
5693164cf9SRandall Stewart #include <sys/resourcevar.h>
5793164cf9SRandall Stewart #include <sys/uio.h>
58c99efcf6SRandall Stewart #include <sys/lock.h>
59c99efcf6SRandall Stewart #include <sys/rwlock.h>
6042551e99SRandall Stewart #include <sys/kthread.h>
6193164cf9SRandall Stewart #include <sys/priv.h>
62f8829a4aSRandall Stewart #include <sys/random.h>
6393164cf9SRandall Stewart #include <sys/limits.h>
6493164cf9SRandall Stewart #include <sys/queue.h>
65fc14de76SRandall Stewart #include <sys/vimage.h>
6693164cf9SRandall Stewart #include <machine/cpu.h>
6793164cf9SRandall Stewart 
6893164cf9SRandall Stewart #include <net/if.h>
6993164cf9SRandall Stewart #include <net/if_types.h>
7093164cf9SRandall Stewart #include <net/if_var.h>
7193164cf9SRandall Stewart #include <net/route.h>
72385195c0SMarko Zec #include <net/vnet.h>
7393164cf9SRandall Stewart 
7493164cf9SRandall Stewart #include <netinet/in.h>
7593164cf9SRandall Stewart #include <netinet/in_systm.h>
7693164cf9SRandall Stewart #include <netinet/ip.h>
7793164cf9SRandall Stewart #include <netinet/in_pcb.h>
7893164cf9SRandall Stewart #include <netinet/in_var.h>
7993164cf9SRandall Stewart #include <netinet/ip_var.h>
8093164cf9SRandall Stewart #include <netinet/ip_icmp.h>
8193164cf9SRandall Stewart #include <netinet/icmp_var.h>
824b79449eSBjoern A. Zeeb #include <netinet/vinet.h>
8393164cf9SRandall Stewart 
84b2630c29SGeorge V. Neville-Neil #ifdef IPSEC
852cb64cb2SGeorge V. Neville-Neil #include <netipsec/ipsec.h>
862cb64cb2SGeorge V. Neville-Neil #include <netipsec/key.h>
8793164cf9SRandall Stewart #endif				/* IPSEC */
8893164cf9SRandall Stewart 
8993164cf9SRandall Stewart #ifdef INET6
9093164cf9SRandall Stewart #include <sys/domain.h>
91b2630c29SGeorge V. Neville-Neil #ifdef IPSEC
920d29af67SGeorge V. Neville-Neil #include <netipsec/ipsec6.h>
9393164cf9SRandall Stewart #endif
9493164cf9SRandall Stewart #include <netinet/ip6.h>
9593164cf9SRandall Stewart #include <netinet6/ip6_var.h>
9693164cf9SRandall Stewart #include <netinet6/in6_pcb.h>
9793164cf9SRandall Stewart #include <netinet/icmp6.h>
9893164cf9SRandall Stewart #include <netinet6/ip6protosw.h>
9993164cf9SRandall Stewart #include <netinet6/nd6.h>
10093164cf9SRandall Stewart #include <netinet6/scope6_var.h>
101385195c0SMarko Zec #include <netinet6/vinet6.h>
10293164cf9SRandall Stewart #endif				/* INET6 */
10393164cf9SRandall Stewart 
104f42a358aSRandall Stewart 
10593164cf9SRandall Stewart #include <netinet/ip_options.h>
10693164cf9SRandall Stewart 
10793164cf9SRandall Stewart #ifndef in6pcb
10893164cf9SRandall Stewart #define in6pcb		inpcb
10993164cf9SRandall Stewart #endif
110207304d4SRandall Stewart /* Declare all the malloc names for all the various mallocs */
111207304d4SRandall Stewart MALLOC_DECLARE(SCTP_M_MAP);
112207304d4SRandall Stewart MALLOC_DECLARE(SCTP_M_STRMI);
113207304d4SRandall Stewart MALLOC_DECLARE(SCTP_M_STRMO);
114207304d4SRandall Stewart MALLOC_DECLARE(SCTP_M_ASC_ADDR);
115207304d4SRandall Stewart MALLOC_DECLARE(SCTP_M_ASC_IT);
116207304d4SRandall Stewart MALLOC_DECLARE(SCTP_M_AUTH_CL);
117207304d4SRandall Stewart MALLOC_DECLARE(SCTP_M_AUTH_KY);
118207304d4SRandall Stewart MALLOC_DECLARE(SCTP_M_AUTH_HL);
119207304d4SRandall Stewart MALLOC_DECLARE(SCTP_M_AUTH_IF);
120207304d4SRandall Stewart MALLOC_DECLARE(SCTP_M_STRESET);
121207304d4SRandall Stewart MALLOC_DECLARE(SCTP_M_CMSG);
122207304d4SRandall Stewart MALLOC_DECLARE(SCTP_M_COPYAL);
123207304d4SRandall Stewart MALLOC_DECLARE(SCTP_M_VRF);
124207304d4SRandall Stewart MALLOC_DECLARE(SCTP_M_IFA);
125207304d4SRandall Stewart MALLOC_DECLARE(SCTP_M_IFN);
126207304d4SRandall Stewart MALLOC_DECLARE(SCTP_M_TIMW);
127207304d4SRandall Stewart MALLOC_DECLARE(SCTP_M_MVRF);
128207304d4SRandall Stewart MALLOC_DECLARE(SCTP_M_ITER);
129207304d4SRandall Stewart MALLOC_DECLARE(SCTP_M_SOCKOPT);
130f8829a4aSRandall Stewart 
131c4739e2fSRandall Stewart #if defined(SCTP_LOCAL_TRACE_BUF)
132c4739e2fSRandall Stewart 
133c4739e2fSRandall Stewart #define SCTP_GET_CYCLECOUNT get_cyclecount()
134c4739e2fSRandall Stewart #define SCTP_CTR6 sctp_log_trace
135c4739e2fSRandall Stewart 
136c4739e2fSRandall Stewart #else
137c4739e2fSRandall Stewart #define SCTP_CTR6 CTR6
138c4739e2fSRandall Stewart #endif
139c4739e2fSRandall Stewart 
140b3f1ea41SRandall Stewart #define SCTP_BASE_INFO(__m) system_base_info.sctppcbinfo.__m
141b3f1ea41SRandall Stewart #define SCTP_BASE_STATS system_base_info.sctpstat
142b3f1ea41SRandall Stewart #define SCTP_BASE_STAT(__m)     system_base_info.sctpstat.__m
143b3f1ea41SRandall Stewart #define SCTP_BASE_SYSCTL(__m) system_base_info.sctpsysctl.__m
144b3f1ea41SRandall Stewart #define SCTP_BASE_VAR(__m) system_base_info.__m
145c4739e2fSRandall Stewart 
146f8829a4aSRandall Stewart /*
147fc14de76SRandall Stewart  * Macros to expand out globals defined by various modules
148fc14de76SRandall Stewart  * to either a real global or a virtualized instance of one,
149603724d3SBjoern A. Zeeb  * depending on whether VIMAGE is defined.
150fc14de76SRandall Stewart  */
151fc14de76SRandall Stewart /* first define modules that supply us information */
152fc14de76SRandall Stewart #define MOD_NET net
153fc14de76SRandall Stewart #define MOD_INET inet
154fc14de76SRandall Stewart #define MOD_INET6 inet6
155fc14de76SRandall Stewart #define MOD_IPSEC ipsec
156fc14de76SRandall Stewart 
157fc14de76SRandall Stewart /* then define the macro(s) that hook into the vimage macros */
158603724d3SBjoern A. Zeeb #define MODULE_GLOBAL(__MODULE, __SYMBOL) V_ ## __SYMBOL
159a99b6783SRandall Stewart 
160fc14de76SRandall Stewart /*
161f8829a4aSRandall Stewart  *
162f8829a4aSRandall Stewart  */
163a5d547adSRandall Stewart #define USER_ADDR_NULL	(NULL)	/* FIX ME: temp */
164f42a358aSRandall Stewart #define SCTP_LIST_EMPTY(list)	LIST_EMPTY(list)
165a5d547adSRandall Stewart 
16617205eccSRandall Stewart #if defined(SCTP_DEBUG)
16717205eccSRandall Stewart #define SCTPDBG(level, params...)					\
16817205eccSRandall Stewart {									\
16917205eccSRandall Stewart     do {								\
170b3f1ea41SRandall Stewart 	if (SCTP_BASE_SYSCTL(sctp_debug_on) & level ) {			\
17117205eccSRandall Stewart 	    printf(params);						\
17217205eccSRandall Stewart 	}								\
17317205eccSRandall Stewart     } while (0);							\
17417205eccSRandall Stewart }
17517205eccSRandall Stewart #define SCTPDBG_ADDR(level, addr)					\
17617205eccSRandall Stewart {									\
17717205eccSRandall Stewart     do {								\
178b3f1ea41SRandall Stewart 	if (SCTP_BASE_SYSCTL(sctp_debug_on) & level ) {			\
17917205eccSRandall Stewart 	    sctp_print_address(addr);					\
18017205eccSRandall Stewart 	}								\
18117205eccSRandall Stewart     } while (0);							\
18217205eccSRandall Stewart }
183ad81507eSRandall Stewart #define SCTPDBG_PKT(level, iph, sh)					\
184ad81507eSRandall Stewart {									\
185ad81507eSRandall Stewart     do {								\
186b3f1ea41SRandall Stewart 	    if (SCTP_BASE_SYSCTL(sctp_debug_on) & level) {		\
187ad81507eSRandall Stewart 		    sctp_print_address_pkt(iph, sh);			\
188ad81507eSRandall Stewart 	    }								\
189ad81507eSRandall Stewart     } while (0);							\
190ad81507eSRandall Stewart }
19117205eccSRandall Stewart #else
19217205eccSRandall Stewart #define SCTPDBG(level, params...)
19317205eccSRandall Stewart #define SCTPDBG_ADDR(level, addr)
194ad81507eSRandall Stewart #define SCTPDBG_PKT(level, iph, sh)
19517205eccSRandall Stewart #endif
196ad81507eSRandall Stewart #define SCTP_PRINTF(params...)	printf(params)
19717205eccSRandall Stewart 
19880fefe0aSRandall Stewart #ifdef SCTP_LTRACE_CHUNKS
199dfb11ef8SRandall Stewart #define SCTP_LTRACE_CHK(a, b, c, d) if(SCTP_BASE_SYSCTL(sctp_logging_level) & SCTP_LTRACE_CHUNK_ENABLE) SCTP_CTR6(KTR_SUBSYS, "SCTP:%d[%d]:%x-%x-%x-%x", SCTP_LOG_CHUNK_PROC, 0, a, b, c, d)
20080fefe0aSRandall Stewart #else
20180fefe0aSRandall Stewart #define SCTP_LTRACE_CHK(a, b, c, d)
20280fefe0aSRandall Stewart #endif
20380fefe0aSRandall Stewart 
20480fefe0aSRandall Stewart #ifdef SCTP_LTRACE_ERRORS
2059b023217SRandall Stewart #define SCTP_LTRACE_ERR_RET_PKT(m, inp, stcb, net, file, err) if(SCTP_BASE_SYSCTL(sctp_logging_level) & SCTP_LTRACE_ERROR_ENABLE) \
206c4739e2fSRandall Stewart                                                          printf("mbuf:%p inp:%p stcb:%p net:%p file:%x line:%d error:%d\n", \
207c4739e2fSRandall Stewart 								     m, inp, stcb, net, file, __LINE__, err);
2089b023217SRandall Stewart #define SCTP_LTRACE_ERR_RET(inp, stcb, net, file, err) if(SCTP_BASE_SYSCTL(sctp_logging_level) & SCTP_LTRACE_ERROR_ENABLE) \
209c4739e2fSRandall Stewart                                                           printf("inp:%p stcb:%p net:%p file:%x line:%d error:%d\n", \
210c4739e2fSRandall Stewart 								     inp, stcb, net, file, __LINE__, err);
21180fefe0aSRandall Stewart #else
212c4739e2fSRandall Stewart #define SCTP_LTRACE_ERR_RET_PKT(m, inp, stcb, net, file, err)
213c4739e2fSRandall Stewart #define SCTP_LTRACE_ERR_RET(inp, stcb, net, file, err)
21480fefe0aSRandall Stewart #endif
21580fefe0aSRandall Stewart 
216c4739e2fSRandall Stewart 
217f8829a4aSRandall Stewart /*
21842551e99SRandall Stewart  * Local address and interface list handling
21942551e99SRandall Stewart  */
22042551e99SRandall Stewart #define SCTP_MAX_VRF_ID		0
22142551e99SRandall Stewart #define SCTP_SIZE_OF_VRF_HASH	3
22242551e99SRandall Stewart #define SCTP_IFNAMSIZ		IFNAMSIZ
22342551e99SRandall Stewart #define SCTP_DEFAULT_VRFID	0
22417205eccSRandall Stewart #define SCTP_VRF_ADDR_HASH_SIZE	16
22517205eccSRandall Stewart #define SCTP_VRF_IFN_HASH_SIZE	3
226f4c93d24SRandall Stewart #define	SCTP_INIT_VRF_TABLEID(vrf)
22742551e99SRandall Stewart 
22842551e99SRandall Stewart #define SCTP_IFN_IS_IFT_LOOP(ifn) ((ifn)->ifn_type == IFT_LOOP)
229c54a18d2SRandall Stewart #define SCTP_ROUTE_IS_REAL_LOOP(ro) ((ro)->ro_rt && (ro)->ro_rt->rt_ifa && (ro)->ro_rt->rt_ifa->ifa_ifp && (ro)->ro_rt->rt_ifa->ifa_ifp->if_type == IFT_LOOP)
23042551e99SRandall Stewart 
23142551e99SRandall Stewart /*
23242551e99SRandall Stewart  * Access to IFN's to help with src-addr-selection
23342551e99SRandall Stewart  */
23442551e99SRandall Stewart /* This could return VOID if the index works but for BSD we provide both. */
23542551e99SRandall Stewart #define SCTP_GET_IFN_VOID_FROM_ROUTE(ro) (void *)ro->ro_rt->rt_ifp
23617205eccSRandall Stewart #define SCTP_GET_IF_INDEX_FROM_ROUTE(ro) (ro)->ro_rt->rt_ifp->if_index
23717205eccSRandall Stewart #define SCTP_ROUTE_HAS_VALID_IFN(ro) ((ro)->ro_rt && (ro)->ro_rt->rt_ifp)
23842551e99SRandall Stewart 
23942551e99SRandall Stewart /*
240f8829a4aSRandall Stewart  * general memory allocation
241f8829a4aSRandall Stewart  */
242f8829a4aSRandall Stewart #define SCTP_MALLOC(var, type, size, name) \
243f8829a4aSRandall Stewart     do { \
2441ede983cSDag-Erling Smørgrav 	var = (type)malloc(size, name, M_NOWAIT); \
245f8829a4aSRandall Stewart     } while (0)
246f8829a4aSRandall Stewart 
2471ede983cSDag-Erling Smørgrav #define SCTP_FREE(var, type)	free(var, type)
248f8829a4aSRandall Stewart 
249f8829a4aSRandall Stewart #define SCTP_MALLOC_SONAME(var, type, size) \
250f8829a4aSRandall Stewart     do { \
2511ede983cSDag-Erling Smørgrav 	var = (type)malloc(size, M_SONAME, M_WAITOK | M_ZERO); \
252f8829a4aSRandall Stewart     } while (0)
253f8829a4aSRandall Stewart 
2541ede983cSDag-Erling Smørgrav #define SCTP_FREE_SONAME(var)	free(var, M_SONAME)
255f8829a4aSRandall Stewart 
25642551e99SRandall Stewart #define SCTP_PROCESS_STRUCT struct proc *
25742551e99SRandall Stewart 
258f8829a4aSRandall Stewart /*
259f8829a4aSRandall Stewart  * zone allocation functions
260f8829a4aSRandall Stewart  */
261f8829a4aSRandall Stewart #include <vm/uma.h>
262c54a18d2SRandall Stewart 
263f8829a4aSRandall Stewart /* SCTP_ZONE_INIT: initialize the zone */
264f8829a4aSRandall Stewart typedef struct uma_zone *sctp_zone_t;
265f8829a4aSRandall Stewart 
266f8829a4aSRandall Stewart #define UMA_ZFLAG_FULL	0x0020
267f8829a4aSRandall Stewart #define SCTP_ZONE_INIT(zone, name, size, number) { \
268f8829a4aSRandall Stewart 	zone = uma_zcreate(name, size, NULL, NULL, NULL, NULL, UMA_ALIGN_PTR,\
269f8829a4aSRandall Stewart 		UMA_ZFLAG_FULL); \
270f8829a4aSRandall Stewart 	uma_zone_set_max(zone, number); \
271f8829a4aSRandall Stewart }
272f8829a4aSRandall Stewart 
273c54a18d2SRandall Stewart #define SCTP_ZONE_DESTROY(zone) uma_zdestroy(zone)
274c54a18d2SRandall Stewart 
275f8829a4aSRandall Stewart /* SCTP_ZONE_GET: allocate element from the zone */
276f42a358aSRandall Stewart #define SCTP_ZONE_GET(zone, type) \
277f42a358aSRandall Stewart 	(type *)uma_zalloc(zone, M_NOWAIT);
278f8829a4aSRandall Stewart 
279f8829a4aSRandall Stewart /* SCTP_ZONE_FREE: free element from the zone */
280f8829a4aSRandall Stewart #define SCTP_ZONE_FREE(zone, element) \
281f8829a4aSRandall Stewart 	uma_zfree(zone, element);
282c54a18d2SRandall Stewart 
28344b7479bSRandall Stewart #define SCTP_HASH_INIT(size, hashmark) hashinit_flags(size, M_PCB, hashmark, HASH_NOWAIT)
28444b7479bSRandall Stewart #define SCTP_HASH_FREE(table, hashmark) hashdestroy(table, M_PCB, hashmark)
28544b7479bSRandall Stewart 
28644b7479bSRandall Stewart #define SCTP_M_COPYM	m_copym
287f8829a4aSRandall Stewart 
288f8829a4aSRandall Stewart /*
289139bc87fSRandall Stewart  * timers
290139bc87fSRandall Stewart  */
291139bc87fSRandall Stewart #include <sys/callout.h>
292139bc87fSRandall Stewart typedef struct callout sctp_os_timer_t;
293139bc87fSRandall Stewart 
294c54a18d2SRandall Stewart 
295139bc87fSRandall Stewart #define SCTP_OS_TIMER_INIT(tmr)	callout_init(tmr, 1)
296139bc87fSRandall Stewart #define SCTP_OS_TIMER_START	callout_reset
297139bc87fSRandall Stewart #define SCTP_OS_TIMER_STOP	callout_stop
29844b7479bSRandall Stewart #define SCTP_OS_TIMER_STOP_DRAIN callout_drain
299139bc87fSRandall Stewart #define SCTP_OS_TIMER_PENDING	callout_pending
300139bc87fSRandall Stewart #define SCTP_OS_TIMER_ACTIVE	callout_active
301139bc87fSRandall Stewart #define SCTP_OS_TIMER_DEACTIVATE callout_deactivate
302139bc87fSRandall Stewart 
303207304d4SRandall Stewart #define sctp_get_tick_count() (ticks)
304207304d4SRandall Stewart 
305ceaad40aSRandall Stewart #define SCTP_UNUSED __attribute__((unused))
30635918f85SRandall Stewart 
307139bc87fSRandall Stewart /*
308f8829a4aSRandall Stewart  * Functions
309f8829a4aSRandall Stewart  */
310139bc87fSRandall Stewart /* Mbuf manipulation and access macros  */
311139bc87fSRandall Stewart #define SCTP_BUF_LEN(m) (m->m_len)
312139bc87fSRandall Stewart #define SCTP_BUF_NEXT(m) (m->m_next)
313139bc87fSRandall Stewart #define SCTP_BUF_NEXT_PKT(m) (m->m_nextpkt)
314139bc87fSRandall Stewart #define SCTP_BUF_RESV_UF(m, size) m->m_data += size
315139bc87fSRandall Stewart #define SCTP_BUF_AT(m, size) m->m_data + size
316139bc87fSRandall Stewart #define SCTP_BUF_IS_EXTENDED(m) (m->m_flags & M_EXT)
317139bc87fSRandall Stewart #define SCTP_BUF_EXTEND_SIZE(m) (m->m_ext.ext_size)
318139bc87fSRandall Stewart #define SCTP_BUF_TYPE(m) (m->m_type)
319139bc87fSRandall Stewart #define SCTP_BUF_RECVIF(m) (m->m_pkthdr.rcvif)
320139bc87fSRandall Stewart #define SCTP_BUF_PREPEND	M_PREPEND
3215e54f665SRandall Stewart 
3225e54f665SRandall Stewart #define SCTP_ALIGN_TO_END(m, len) if(m->m_flags & M_PKTHDR) { \
3235e54f665SRandall Stewart                                      MH_ALIGN(m, len); \
3245e54f665SRandall Stewart                                   } else if ((m->m_flags & M_EXT) == 0) { \
3255e54f665SRandall Stewart                                      M_ALIGN(m, len); \
3265e54f665SRandall Stewart                                   }
3270696e120SRandall Stewart 
3280696e120SRandall Stewart /* We make it so if you have up to 4 threads
3290696e120SRandall Stewart  * writting based on the default size of
3300696e120SRandall Stewart  * the packet log 65 k, that would be
3310696e120SRandall Stewart  * 4 16k packets before we would hit
3320696e120SRandall Stewart  * a problem.
3330696e120SRandall Stewart  */
3340696e120SRandall Stewart #define SCTP_PKTLOG_WRITERS_NEED_LOCK 3
3350696e120SRandall Stewart 
33617205eccSRandall Stewart /*************************/
33717205eccSRandall Stewart /*      MTU              */
33817205eccSRandall Stewart /*************************/
339ad21a364SRandall Stewart #define SCTP_GATHER_MTU_FROM_IFN_INFO(ifn, ifn_index, af) ((struct ifnet *)ifn)->if_mtu
34017205eccSRandall Stewart #define SCTP_GATHER_MTU_FROM_ROUTE(sctp_ifa, sa, rt) ((rt != NULL) ? rt->rt_rmx.rmx_mtu : 0)
34117205eccSRandall Stewart #define SCTP_GATHER_MTU_FROM_INTFC(sctp_ifn) ((sctp_ifn->ifn_p != NULL) ? ((struct ifnet *)(sctp_ifn->ifn_p))->if_mtu : 0)
34217205eccSRandall Stewart #define SCTP_SET_MTU_OF_ROUTE(sa, rt, mtu) do { \
34317205eccSRandall Stewart                                               if (rt != NULL) \
34417205eccSRandall Stewart                                                  rt->rt_rmx.rmx_mtu = mtu; \
34517205eccSRandall Stewart                                            } while(0)
34617205eccSRandall Stewart 
34717205eccSRandall Stewart /* (de-)register interface event notifications */
348ad21a364SRandall Stewart #define SCTP_REGISTER_INTERFACE(ifhandle, af)
349ad21a364SRandall Stewart #define SCTP_DEREGISTER_INTERFACE(ifhandle, af)
3505e54f665SRandall Stewart 
35118e198d3SRandall Stewart 
352139bc87fSRandall Stewart /*************************/
353139bc87fSRandall Stewart /* These are for logging */
354139bc87fSRandall Stewart /*************************/
355139bc87fSRandall Stewart /* return the base ext data pointer */
356139bc87fSRandall Stewart #define SCTP_BUF_EXTEND_BASE(m) (m->m_ext.ext_buf)
357139bc87fSRandall Stewart  /* return the refcnt of the data pointer */
358139bc87fSRandall Stewart #define SCTP_BUF_EXTEND_REFCNT(m) (*m->m_ext.ref_cnt)
359139bc87fSRandall Stewart /* return any buffer related flags, this is
360139bc87fSRandall Stewart  * used beyond logging for apple only.
361139bc87fSRandall Stewart  */
362139bc87fSRandall Stewart #define SCTP_BUF_GET_FLAGS(m) (m->m_flags)
363139bc87fSRandall Stewart 
364139bc87fSRandall Stewart /* For BSD this just accesses the M_PKTHDR length
365139bc87fSRandall Stewart  * so it operates on an mbuf with hdr flag. Other
366139bc87fSRandall Stewart  * O/S's may have seperate packet header and mbuf
367139bc87fSRandall Stewart  * chain pointers.. thus the macro.
368139bc87fSRandall Stewart  */
369139bc87fSRandall Stewart #define SCTP_HEADER_TO_CHAIN(m) (m)
37017205eccSRandall Stewart #define SCTP_DETACH_HEADER_FROM_CHAIN(m)
371139bc87fSRandall Stewart #define SCTP_HEADER_LEN(m) (m->m_pkthdr.len)
37217205eccSRandall Stewart #define SCTP_GET_HEADER_FOR_OUTPUT(o_pak) 0
37317205eccSRandall Stewart #define SCTP_RELEASE_HEADER(m)
37417205eccSRandall Stewart #define SCTP_RELEASE_PKT(m)	sctp_m_freem(m)
375b3f1ea41SRandall Stewart #define SCTP_ENABLE_UDP_CSUM(m) do { \
376b3f1ea41SRandall Stewart 					m->m_pkthdr.csum_flags = CSUM_UDP; \
377b3f1ea41SRandall Stewart 					m->m_pkthdr.csum_data = offsetof(struct udphdr, uh_sum); \
378b3f1ea41SRandall Stewart 				} while (0)
37917205eccSRandall Stewart 
38072fb6fdbSRandall Stewart #define SCTP_GET_PKT_VRFID(m, vrf_id)  ((vrf_id = SCTP_DEFAULT_VRFID) != SCTP_DEFAULT_VRFID)
38172fb6fdbSRandall Stewart 
38272fb6fdbSRandall Stewart 
383139bc87fSRandall Stewart 
384139bc87fSRandall Stewart /* Attach the chain of data into the sendable packet. */
385139bc87fSRandall Stewart #define SCTP_ATTACH_CHAIN(pak, m, packet_length) do { \
38617205eccSRandall Stewart                                                  pak = m; \
387139bc87fSRandall Stewart                                                  pak->m_pkthdr.len = packet_length; \
388139bc87fSRandall Stewart                          } while(0)
389139bc87fSRandall Stewart 
390139bc87fSRandall Stewart /* Other m_pkthdr type things */
391207304d4SRandall Stewart #define SCTP_IS_IT_BROADCAST(dst, m) ((m->m_flags & M_PKTHDR) ? in_broadcast(dst, m->m_pkthdr.rcvif) : 0)
392207304d4SRandall Stewart #define SCTP_IS_IT_LOOPBACK(m) ((m->m_flags & M_PKTHDR) && ((m->m_pkthdr.rcvif == NULL) || (m->m_pkthdr.rcvif->if_type == IFT_LOOP)))
393139bc87fSRandall Stewart 
394139bc87fSRandall Stewart 
395139bc87fSRandall Stewart /* This converts any input packet header
396139bc87fSRandall Stewart  * into the chain of data holders, for BSD
397139bc87fSRandall Stewart  * its a NOP.
398139bc87fSRandall Stewart  */
399139bc87fSRandall Stewart 
400139bc87fSRandall Stewart /* Macro's for getting length from V6/V4 header */
401139bc87fSRandall Stewart #define SCTP_GET_IPV4_LENGTH(iph) (iph->ip_len)
402139bc87fSRandall Stewart #define SCTP_GET_IPV6_LENGTH(ip6) (ntohs(ip6->ip6_plen))
403f8829a4aSRandall Stewart 
40417205eccSRandall Stewart /* get the v6 hop limit */
40517205eccSRandall Stewart #define SCTP_GET_HLIM(inp, ro)	in6_selecthlim((struct in6pcb *)&inp->ip_inp.inp, (ro ? (ro->ro_rt ? (ro->ro_rt->rt_ifp) : (NULL)) : (NULL)));
40617205eccSRandall Stewart 
40744b7479bSRandall Stewart /* is the endpoint v6only? */
40844b7479bSRandall Stewart #define SCTP_IPV6_V6ONLY(inp)	(((struct inpcb *)inp)->inp_flags & IN6P_IPV6_V6ONLY)
40942551e99SRandall Stewart /* is the socket non-blocking? */
41042551e99SRandall Stewart #define SCTP_SO_IS_NBIO(so)	((so)->so_state & SS_NBIO)
41142551e99SRandall Stewart #define SCTP_SET_SO_NBIO(so)	((so)->so_state |= SS_NBIO)
41242551e99SRandall Stewart #define SCTP_CLEAR_SO_NBIO(so)	((so)->so_state &= ~SS_NBIO)
41342551e99SRandall Stewart /* get the socket type */
41442551e99SRandall Stewart #define SCTP_SO_TYPE(so)	((so)->so_type)
415132dea7dSRandall Stewart /* reserve sb space for a socket */
416132dea7dSRandall Stewart #define SCTP_SORESERVE(so, send, recv)	soreserve(so, send, recv)
41717205eccSRandall Stewart /* wakeup a socket */
41817205eccSRandall Stewart #define SCTP_SOWAKEUP(so)	wakeup(&(so)->so_timeo)
419132dea7dSRandall Stewart /* clear the socket buffer state */
420132dea7dSRandall Stewart #define SCTP_SB_CLEAR(sb)	\
421132dea7dSRandall Stewart 	(sb).sb_cc = 0;		\
422132dea7dSRandall Stewart 	(sb).sb_mb = NULL;	\
423132dea7dSRandall Stewart 	(sb).sb_mbcnt = 0;
42444b7479bSRandall Stewart 
42562c1ff9cSRandall Stewart #define SCTP_SB_LIMIT_RCV(so) so->so_rcv.sb_hiwat
42662c1ff9cSRandall Stewart #define SCTP_SB_LIMIT_SND(so) so->so_snd.sb_hiwat
42762c1ff9cSRandall Stewart 
428f42a358aSRandall Stewart /*
429bff64a4dSRandall Stewart  * routes, output, etc.
430bff64a4dSRandall Stewart  */
431bff64a4dSRandall Stewart typedef struct route sctp_route_t;
43217205eccSRandall Stewart typedef struct rtentry sctp_rtentry_t;
433bff64a4dSRandall Stewart 
434b3f1ea41SRandall Stewart #define SCTP_RTALLOC(ro, vrf_id) rtalloc_ign((struct route *)ro, 0UL)
43517205eccSRandall Stewart 
43617205eccSRandall Stewart /* Future zero copy wakeup/send  function */
43717205eccSRandall Stewart #define SCTP_ZERO_COPY_EVENT(inp, so)
438ad21a364SRandall Stewart /* This is re-pulse ourselves for sendbuf */
439ad21a364SRandall Stewart #define SCTP_ZERO_COPY_SENDQ_EVENT(inp, so)
44017205eccSRandall Stewart 
44117205eccSRandall Stewart /*
44217205eccSRandall Stewart  * IP output routines
44317205eccSRandall Stewart  */
444ad21a364SRandall Stewart #define SCTP_IP_OUTPUT(result, o_pak, ro, stcb, vrf_id) \
44517205eccSRandall Stewart { \
44617205eccSRandall Stewart 	int o_flgs = 0; \
44717205eccSRandall Stewart 	if (stcb && stcb->sctp_ep && stcb->sctp_ep->sctp_socket) { \
44817205eccSRandall Stewart 		o_flgs = IP_RAWOUTPUT | (stcb->sctp_ep->sctp_socket->so_options & SO_DONTROUTE); \
44917205eccSRandall Stewart 	} else { \
45017205eccSRandall Stewart 		o_flgs = IP_RAWOUTPUT; \
45117205eccSRandall Stewart 	} \
45217205eccSRandall Stewart 	result = ip_output(o_pak, NULL, ro, o_flgs, 0, NULL); \
45317205eccSRandall Stewart }
45417205eccSRandall Stewart 
455ad21a364SRandall Stewart #define SCTP_IP6_OUTPUT(result, o_pak, ro, ifp, stcb, vrf_id) \
45617205eccSRandall Stewart { \
45717205eccSRandall Stewart  	if (stcb && stcb->sctp_ep) \
45817205eccSRandall Stewart 		result = ip6_output(o_pak, \
45917205eccSRandall Stewart 				    ((struct in6pcb *)(stcb->sctp_ep))->in6p_outputopts, \
46017205eccSRandall Stewart 				    (ro), 0, 0, ifp, NULL); \
46117205eccSRandall Stewart 	else \
46217205eccSRandall Stewart 		result = ip6_output(o_pak, NULL, (ro), 0, 0, ifp, NULL); \
46317205eccSRandall Stewart }
464bff64a4dSRandall Stewart 
465d06c82f1SRandall Stewart struct mbuf *
466d06c82f1SRandall Stewart sctp_get_mbuf_for_msg(unsigned int space_needed,
467d06c82f1SRandall Stewart     int want_header, int how, int allonebuf, int type);
468d06c82f1SRandall Stewart 
469d06c82f1SRandall Stewart 
470bff64a4dSRandall Stewart /*
471f42a358aSRandall Stewart  * SCTP AUTH
472f42a358aSRandall Stewart  */
473f42a358aSRandall Stewart #define HAVE_SHA2
474f42a358aSRandall Stewart 
475f42a358aSRandall Stewart #define SCTP_READ_RANDOM(buf, len)	read_random(buf, len)
476f42a358aSRandall Stewart 
477f42a358aSRandall Stewart #ifdef USE_SCTP_SHA1
478f42a358aSRandall Stewart #include <netinet/sctp_sha1.h>
479f42a358aSRandall Stewart #else
480f42a358aSRandall Stewart #include <crypto/sha1.h>
481f42a358aSRandall Stewart /* map standard crypto API names */
482f42a358aSRandall Stewart #define SHA1_Init	SHA1Init
483f42a358aSRandall Stewart #define SHA1_Update	SHA1Update
484f42a358aSRandall Stewart #define SHA1_Final(x,y)	SHA1Final((caddr_t)x, y)
485f42a358aSRandall Stewart #endif
486f42a358aSRandall Stewart 
487f42a358aSRandall Stewart #if defined(HAVE_SHA2)
488f42a358aSRandall Stewart #include <crypto/sha2/sha2.h>
489f42a358aSRandall Stewart #endif
490f42a358aSRandall Stewart 
491f42a358aSRandall Stewart #include <sys/md5.h>
492f42a358aSRandall Stewart /* map standard crypto API names */
493f42a358aSRandall Stewart #define MD5_Init	MD5Init
494f42a358aSRandall Stewart #define MD5_Update	MD5Update
495f42a358aSRandall Stewart #define MD5_Final	MD5Final
496f42a358aSRandall Stewart 
497f8829a4aSRandall Stewart #endif
498830d754dSRandall Stewart 
499830d754dSRandall Stewart #define SCTP_DECREMENT_AND_CHECK_REFCOUNT(addr) (atomic_fetchadd_int(addr, -1) == 1)
500830d754dSRandall Stewart #if defined(INVARIANTS)
501830d754dSRandall Stewart #define SCTP_SAVE_ATOMIC_DECREMENT(addr, val) \
502830d754dSRandall Stewart { \
503830d754dSRandall Stewart 	int32_t oldval; \
504830d754dSRandall Stewart 	oldval = atomic_fetchadd_int(addr, -val); \
505830d754dSRandall Stewart 	if (oldval < val) { \
506830d754dSRandall Stewart 		panic("Counter goes negative"); \
507830d754dSRandall Stewart 	} \
508830d754dSRandall Stewart }
509830d754dSRandall Stewart #else
510830d754dSRandall Stewart #define SCTP_SAVE_ATOMIC_DECREMENT(addr, val) \
511830d754dSRandall Stewart { \
512830d754dSRandall Stewart 	int32_t oldval; \
513830d754dSRandall Stewart 	oldval = atomic_fetchadd_int(addr, -val); \
514830d754dSRandall Stewart 	if (oldval < val) { \
515830d754dSRandall Stewart 		*addr = 0; \
516830d754dSRandall Stewart 	} \
517830d754dSRandall Stewart }
518830d754dSRandall Stewart #endif
519