2 * Copyright (c) 2006-2007, by Cisco Systems, Inc. All rights reserved.
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30 #include <sys/cdefs.h>
31 __FBSDID("$FreeBSD$");
32 #ifndef __sctp_os_bsd_h__
33 #define __sctp_os_bsd_h__
37 #include "opt_ipsec.h"
38 #include "opt_compat.h"
39 #include "opt_inet6.h"
42 #include <sys/param.h>
43 #include <sys/systm.h>
44 #include <sys/malloc.h>
45 #include <sys/kernel.h>
46 #include <sys/sysctl.h>
48 #include <sys/protosw.h>
49 #include <sys/socket.h>
50 #include <sys/socketvar.h>
51 #include <sys/sysctl.h>
52 #include <sys/resourcevar.h>
54 #include <sys/kthread.h>
56 #include <sys/random.h>
57 #include <sys/limits.h>
58 #include <sys/queue.h>
59 #include <machine/cpu.h>
62 #include <net/if_types.h>
63 #include <net/if_var.h>
64 #include <net/route.h>
66 #include <netinet/in.h>
67 #include <netinet/in_systm.h>
68 #include <netinet/ip.h>
69 #include <netinet/in_pcb.h>
70 #include <netinet/in_var.h>
71 #include <netinet/ip_var.h>
72 #include <netinet/ip_icmp.h>
73 #include <netinet/icmp_var.h>
77 #include <netinet6/ipsec.h>
78 #include <netkey/key.h>
82 #include <sys/domain.h>
84 #include <netinet6/ipsec6.h>
86 #include <netinet/ip6.h>
87 #include <netinet6/ip6_var.h>
88 #include <netinet6/in6_pcb.h>
89 #include <netinet/icmp6.h>
90 #include <netinet6/ip6protosw.h>
91 #include <netinet6/nd6.h>
92 #include <netinet6/scope6_var.h>
96 #include <netinet/ip_options.h>
101 /* Declare all the malloc names for all the various mallocs */
102 MALLOC_DECLARE(SCTP_M_MAP);
103 MALLOC_DECLARE(SCTP_M_STRMI);
104 MALLOC_DECLARE(SCTP_M_STRMO);
105 MALLOC_DECLARE(SCTP_M_ASC_ADDR);
106 MALLOC_DECLARE(SCTP_M_ASC_IT);
107 MALLOC_DECLARE(SCTP_M_AUTH_CL);
108 MALLOC_DECLARE(SCTP_M_AUTH_KY);
109 MALLOC_DECLARE(SCTP_M_AUTH_HL);
110 MALLOC_DECLARE(SCTP_M_AUTH_IF);
111 MALLOC_DECLARE(SCTP_M_STRESET);
112 MALLOC_DECLARE(SCTP_M_CMSG);
113 MALLOC_DECLARE(SCTP_M_COPYAL);
114 MALLOC_DECLARE(SCTP_M_VRF);
115 MALLOC_DECLARE(SCTP_M_IFA);
116 MALLOC_DECLARE(SCTP_M_IFN);
117 MALLOC_DECLARE(SCTP_M_TIMW);
118 MALLOC_DECLARE(SCTP_M_MVRF);
119 MALLOC_DECLARE(SCTP_M_ITER);
120 MALLOC_DECLARE(SCTP_M_SOCKOPT);
125 #define USER_ADDR_NULL (NULL) /* FIX ME: temp */
126 #define SCTP_LIST_EMPTY(list) LIST_EMPTY(list)
128 #if defined(SCTP_DEBUG)
129 #define SCTPDBG(level, params...) \
132 if (sctp_debug_on & level ) { \
137 #define SCTPDBG_ADDR(level, addr) \
140 if (sctp_debug_on & level ) { \
141 sctp_print_address(addr); \
145 #define SCTPDBG_PKT(level, iph, sh) \
148 if (sctp_debug_on & level) { \
149 sctp_print_address_pkt(iph, sh); \
154 #define SCTPDBG(level, params...)
155 #define SCTPDBG_ADDR(level, addr)
156 #define SCTPDBG_PKT(level, iph, sh)
158 #define SCTP_PRINTF(params...) printf(params)
161 * Local address and interface list handling
163 #define SCTP_MAX_VRF_ID 0
164 #define SCTP_SIZE_OF_VRF_HASH 3
165 #define SCTP_IFNAMSIZ IFNAMSIZ
166 #define SCTP_DEFAULT_VRFID 0
167 #define SCTP_VRF_ADDR_HASH_SIZE 16
168 #define SCTP_VRF_IFN_HASH_SIZE 3
169 #define SCTP_INIT_VRF_TABLEID(vrf)
171 #define SCTP_IFN_IS_IFT_LOOP(ifn) ((ifn)->ifn_type == IFT_LOOP)
174 * Access to IFN's to help with src-addr-selection
176 /* This could return VOID if the index works but for BSD we provide both. */
177 #define SCTP_GET_IFN_VOID_FROM_ROUTE(ro) (void *)ro->ro_rt->rt_ifp
178 #define SCTP_GET_IF_INDEX_FROM_ROUTE(ro) (ro)->ro_rt->rt_ifp->if_index
179 #define SCTP_ROUTE_HAS_VALID_IFN(ro) ((ro)->ro_rt && (ro)->ro_rt->rt_ifp)
182 * general memory allocation
184 #define SCTP_MALLOC(var, type, size, name) \
186 MALLOC(var, type, size, name, M_NOWAIT); \
189 #define SCTP_FREE(var, type) FREE(var, type)
191 #define SCTP_MALLOC_SONAME(var, type, size) \
193 MALLOC(var, type, size, M_SONAME, M_WAITOK | M_ZERO); \
196 #define SCTP_FREE_SONAME(var) FREE(var, M_SONAME)
198 #define SCTP_PROCESS_STRUCT struct proc *
201 * zone allocation functions
204 /* SCTP_ZONE_INIT: initialize the zone */
205 typedef struct uma_zone *sctp_zone_t;
207 #define UMA_ZFLAG_FULL 0x0020
208 #define SCTP_ZONE_INIT(zone, name, size, number) { \
209 zone = uma_zcreate(name, size, NULL, NULL, NULL, NULL, UMA_ALIGN_PTR,\
211 uma_zone_set_max(zone, number); \
214 /* SCTP_ZONE_GET: allocate element from the zone */
215 #define SCTP_ZONE_GET(zone, type) \
216 (type *)uma_zalloc(zone, M_NOWAIT);
218 /* SCTP_ZONE_FREE: free element from the zone */
219 #define SCTP_ZONE_FREE(zone, element) \
220 uma_zfree(zone, element);
221 #define SCTP_HASH_INIT(size, hashmark) hashinit_flags(size, M_PCB, hashmark, HASH_NOWAIT)
222 #define SCTP_HASH_FREE(table, hashmark) hashdestroy(table, M_PCB, hashmark)
224 #define SCTP_M_COPYM m_copym
229 #include <sys/callout.h>
230 typedef struct callout sctp_os_timer_t;
232 #define SCTP_OS_TIMER_INIT(tmr) callout_init(tmr, 1)
233 #define SCTP_OS_TIMER_START callout_reset
234 #define SCTP_OS_TIMER_STOP callout_stop
235 #define SCTP_OS_TIMER_STOP_DRAIN callout_drain
236 #define SCTP_OS_TIMER_PENDING callout_pending
237 #define SCTP_OS_TIMER_ACTIVE callout_active
238 #define SCTP_OS_TIMER_DEACTIVATE callout_deactivate
240 #define sctp_get_tick_count() (ticks)
245 /* Mbuf manipulation and access macros */
246 #define SCTP_BUF_LEN(m) (m->m_len)
247 #define SCTP_BUF_NEXT(m) (m->m_next)
248 #define SCTP_BUF_NEXT_PKT(m) (m->m_nextpkt)
249 #define SCTP_BUF_RESV_UF(m, size) m->m_data += size
250 #define SCTP_BUF_AT(m, size) m->m_data + size
251 #define SCTP_BUF_IS_EXTENDED(m) (m->m_flags & M_EXT)
252 #define SCTP_BUF_EXTEND_SIZE(m) (m->m_ext.ext_size)
253 #define SCTP_BUF_TYPE(m) (m->m_type)
254 #define SCTP_BUF_RECVIF(m) (m->m_pkthdr.rcvif)
255 #define SCTP_BUF_PREPEND M_PREPEND
257 #define SCTP_ALIGN_TO_END(m, len) if(m->m_flags & M_PKTHDR) { \
259 } else if ((m->m_flags & M_EXT) == 0) { \
263 /* We make it so if you have up to 4 threads
264 * writting based on the default size of
265 * the packet log 65 k, that would be
266 * 4 16k packets before we would hit
269 #define SCTP_PKTLOG_WRITERS_NEED_LOCK 3
271 /*************************/
273 /*************************/
274 #define SCTP_GATHER_MTU_FROM_IFN_INFO(ifn, ifn_index, af) ((struct ifnet *)ifn)->if_mtu
275 #define SCTP_GATHER_MTU_FROM_ROUTE(sctp_ifa, sa, rt) ((rt != NULL) ? rt->rt_rmx.rmx_mtu : 0)
276 #define SCTP_GATHER_MTU_FROM_INTFC(sctp_ifn) ((sctp_ifn->ifn_p != NULL) ? ((struct ifnet *)(sctp_ifn->ifn_p))->if_mtu : 0)
277 #define SCTP_SET_MTU_OF_ROUTE(sa, rt, mtu) do { \
279 rt->rt_rmx.rmx_mtu = mtu; \
282 /* (de-)register interface event notifications */
283 #define SCTP_REGISTER_INTERFACE(ifhandle, af)
284 #define SCTP_DEREGISTER_INTERFACE(ifhandle, af)
286 /*************************/
287 /* These are for logging */
288 /*************************/
289 /* return the base ext data pointer */
290 #define SCTP_BUF_EXTEND_BASE(m) (m->m_ext.ext_buf)
291 /* return the refcnt of the data pointer */
292 #define SCTP_BUF_EXTEND_REFCNT(m) (*m->m_ext.ref_cnt)
293 /* return any buffer related flags, this is
294 * used beyond logging for apple only.
296 #define SCTP_BUF_GET_FLAGS(m) (m->m_flags)
298 /* For BSD this just accesses the M_PKTHDR length
299 * so it operates on an mbuf with hdr flag. Other
300 * O/S's may have seperate packet header and mbuf
301 * chain pointers.. thus the macro.
303 #define SCTP_HEADER_TO_CHAIN(m) (m)
304 #define SCTP_DETACH_HEADER_FROM_CHAIN(m)
305 #define SCTP_HEADER_LEN(m) (m->m_pkthdr.len)
306 #define SCTP_GET_HEADER_FOR_OUTPUT(o_pak) 0
307 #define SCTP_RELEASE_HEADER(m)
308 #define SCTP_RELEASE_PKT(m) sctp_m_freem(m)
311 SCTP_GET_PKT_VRFID(void *m, uint32_t vrf_id)
313 vrf_id = SCTP_DEFAULT_VRFID;
317 /* Attach the chain of data into the sendable packet. */
318 #define SCTP_ATTACH_CHAIN(pak, m, packet_length) do { \
320 pak->m_pkthdr.len = packet_length; \
323 /* Other m_pkthdr type things */
324 #define SCTP_IS_IT_BROADCAST(dst, m) ((m->m_flags & M_PKTHDR) ? in_broadcast(dst, m->m_pkthdr.rcvif) : 0)
325 #define SCTP_IS_IT_LOOPBACK(m) ((m->m_flags & M_PKTHDR) && ((m->m_pkthdr.rcvif == NULL) || (m->m_pkthdr.rcvif->if_type == IFT_LOOP)))
328 /* This converts any input packet header
329 * into the chain of data holders, for BSD
333 /* Macro's for getting length from V6/V4 header */
334 #define SCTP_GET_IPV4_LENGTH(iph) (iph->ip_len)
335 #define SCTP_GET_IPV6_LENGTH(ip6) (ntohs(ip6->ip6_plen))
337 /* get the v6 hop limit */
338 #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)));
340 /* is the endpoint v6only? */
341 #define SCTP_IPV6_V6ONLY(inp) (((struct inpcb *)inp)->inp_flags & IN6P_IPV6_V6ONLY)
342 /* is the socket non-blocking? */
343 #define SCTP_SO_IS_NBIO(so) ((so)->so_state & SS_NBIO)
344 #define SCTP_SET_SO_NBIO(so) ((so)->so_state |= SS_NBIO)
345 #define SCTP_CLEAR_SO_NBIO(so) ((so)->so_state &= ~SS_NBIO)
346 /* get the socket type */
347 #define SCTP_SO_TYPE(so) ((so)->so_type)
348 /* reserve sb space for a socket */
349 #define SCTP_SORESERVE(so, send, recv) soreserve(so, send, recv)
350 /* wakeup a socket */
351 #define SCTP_SOWAKEUP(so) wakeup(&(so)->so_timeo)
352 /* clear the socket buffer state */
353 #define SCTP_SB_CLEAR(sb) \
358 #define SCTP_SB_LIMIT_RCV(so) so->so_rcv.sb_hiwat
359 #define SCTP_SB_LIMIT_SND(so) so->so_snd.sb_hiwat
362 * routes, output, etc.
364 typedef struct route sctp_route_t;
365 typedef struct rtentry sctp_rtentry_t;
367 #define SCTP_RTALLOC(ro, vrf_id) rtalloc_ign((struct route *)ro, 0UL)
369 /* Future zero copy wakeup/send function */
370 #define SCTP_ZERO_COPY_EVENT(inp, so)
371 /* This is re-pulse ourselves for sendbuf */
372 #define SCTP_ZERO_COPY_SENDQ_EVENT(inp, so)
377 #define SCTP_IP_OUTPUT(result, o_pak, ro, stcb, vrf_id) \
380 if (stcb && stcb->sctp_ep && stcb->sctp_ep->sctp_socket) { \
381 o_flgs = IP_RAWOUTPUT | (stcb->sctp_ep->sctp_socket->so_options & SO_DONTROUTE); \
383 o_flgs = IP_RAWOUTPUT; \
385 result = ip_output(o_pak, NULL, ro, o_flgs, 0, NULL); \
388 #define SCTP_IP6_OUTPUT(result, o_pak, ro, ifp, stcb, vrf_id) \
390 if (stcb && stcb->sctp_ep) \
391 result = ip6_output(o_pak, \
392 ((struct in6pcb *)(stcb->sctp_ep))->in6p_outputopts, \
393 (ro), 0, 0, ifp, NULL); \
395 result = ip6_output(o_pak, NULL, (ro), 0, 0, ifp, NULL); \
399 sctp_get_mbuf_for_msg(unsigned int space_needed,
400 int want_header, int how, int allonebuf, int type);
408 #define SCTP_READ_RANDOM(buf, len) read_random(buf, len)
411 #include <netinet/sctp_sha1.h>
413 #include <crypto/sha1.h>
414 /* map standard crypto API names */
415 #define SHA1_Init SHA1Init
416 #define SHA1_Update SHA1Update
417 #define SHA1_Final(x,y) SHA1Final((caddr_t)x, y)
420 #if defined(HAVE_SHA2)
421 #include <crypto/sha2/sha2.h>
425 /* map standard crypto API names */
426 #define MD5_Init MD5Init
427 #define MD5_Update MD5Update
428 #define MD5_Final MD5Final