1/*-
2 * Copyright (c) 2006-2007, by Cisco Systems, Inc. All rights reserved.
3 * Copyright (c) 2008-2012, by Randall Stewart. All rights reserved.
4 * Copyright (c) 2008-2012, by Michael Tuexen. All rights reserved.
5 *
6 * Redistribution and use in source and binary forms, with or without
7 * modification, are permitted provided that the following conditions are met:
8 *
9 * a) Redistributions of source code must retain the above copyright notice,
10 * this list of conditions and the following disclaimer.
11 *
12 * b) Redistributions in binary form must reproduce the above copyright
13 * notice, this list of conditions and the following disclaimer in
14 * the documentation and/or other materials provided with the distribution.
15 *
16 * c) Neither the name of Cisco Systems, Inc. nor the names of its
17 * contributors may be used to endorse or promote products derived
18 * from this software without specific prior written permission.
19 *
20 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
21 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
22 * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
23 * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
24 * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
25 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
26 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
27 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
28 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
29 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
30 * THE POSSIBILITY OF SUCH DAMAGE.
31 */
32
33#include <sys/cdefs.h>
| 1/*-
2 * Copyright (c) 2006-2007, by Cisco Systems, Inc. All rights reserved.
3 * Copyright (c) 2008-2012, by Randall Stewart. All rights reserved.
4 * Copyright (c) 2008-2012, by Michael Tuexen. All rights reserved.
5 *
6 * Redistribution and use in source and binary forms, with or without
7 * modification, are permitted provided that the following conditions are met:
8 *
9 * a) Redistributions of source code must retain the above copyright notice,
10 * this list of conditions and the following disclaimer.
11 *
12 * b) Redistributions in binary form must reproduce the above copyright
13 * notice, this list of conditions and the following disclaimer in
14 * the documentation and/or other materials provided with the distribution.
15 *
16 * c) Neither the name of Cisco Systems, Inc. nor the names of its
17 * contributors may be used to endorse or promote products derived
18 * from this software without specific prior written permission.
19 *
20 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
21 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
22 * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
23 * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
24 * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
25 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
26 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
27 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
28 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
29 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
30 * THE POSSIBILITY OF SUCH DAMAGE.
31 */
32
33#include <sys/cdefs.h>
|
34__FBSDID("$FreeBSD: head/sys/netinet/sctp_os_bsd.h 255160 2013-09-02 22:48:41Z tuexen $");
| 34__FBSDID("$FreeBSD: head/sys/netinet/sctp_os_bsd.h 262763 2014-03-05 01:17:47Z glebius $");
|
35
36#ifndef _NETINET_SCTP_OS_BSD_H_
37#define _NETINET_SCTP_OS_BSD_H_
38/*
39 * includes
40 */
41#include "opt_ipsec.h"
42#include "opt_compat.h"
43#include "opt_inet6.h"
44#include "opt_inet.h"
45#include "opt_sctp.h"
46
47#include <sys/param.h>
48#include <sys/ktr.h>
49#include <sys/systm.h>
50#include <sys/malloc.h>
51#include <sys/kernel.h>
52#include <sys/sysctl.h>
53#include <sys/mbuf.h>
54#include <sys/protosw.h>
55#include <sys/socket.h>
56#include <sys/socketvar.h>
57#include <sys/jail.h>
58#include <sys/sysctl.h>
59#include <sys/resourcevar.h>
60#include <sys/uio.h>
61#include <sys/lock.h>
62#include <sys/rwlock.h>
63#include <sys/kthread.h>
64#include <sys/priv.h>
65#include <sys/random.h>
66#include <sys/limits.h>
67#include <sys/queue.h>
68#include <machine/cpu.h>
69
70#include <net/if.h>
71#include <net/if_types.h>
72#include <net/if_var.h>
73#include <net/route.h>
74#include <net/vnet.h>
75
76#include <netinet/in.h>
77#include <netinet/in_systm.h>
78#include <netinet/ip.h>
79#include <netinet/in_pcb.h>
80#include <netinet/in_var.h>
81#include <netinet/ip_var.h>
82#include <netinet/ip_icmp.h>
83#include <netinet/icmp_var.h>
84
85#ifdef IPSEC
86#include <netipsec/ipsec.h>
87#include <netipsec/key.h>
88#endif /* IPSEC */
89
90#ifdef INET6
91#include <sys/domain.h>
92#ifdef IPSEC
93#include <netipsec/ipsec6.h>
94#endif
95#include <netinet/ip6.h>
96#include <netinet6/ip6_var.h>
97#include <netinet6/in6_pcb.h>
98#include <netinet/icmp6.h>
99#include <netinet6/ip6protosw.h>
100#include <netinet6/nd6.h>
101#include <netinet6/scope6_var.h>
102#endif /* INET6 */
103
104
105#include <netinet/ip_options.h>
106
107#include <crypto/sha1.h>
108#include <crypto/sha2/sha2.h>
109
110#ifndef in6pcb
111#define in6pcb inpcb
112#endif
113/* Declare all the malloc names for all the various mallocs */
114MALLOC_DECLARE(SCTP_M_MAP);
115MALLOC_DECLARE(SCTP_M_STRMI);
116MALLOC_DECLARE(SCTP_M_STRMO);
117MALLOC_DECLARE(SCTP_M_ASC_ADDR);
118MALLOC_DECLARE(SCTP_M_ASC_IT);
119MALLOC_DECLARE(SCTP_M_AUTH_CL);
120MALLOC_DECLARE(SCTP_M_AUTH_KY);
121MALLOC_DECLARE(SCTP_M_AUTH_HL);
122MALLOC_DECLARE(SCTP_M_AUTH_IF);
123MALLOC_DECLARE(SCTP_M_STRESET);
124MALLOC_DECLARE(SCTP_M_CMSG);
125MALLOC_DECLARE(SCTP_M_COPYAL);
126MALLOC_DECLARE(SCTP_M_VRF);
127MALLOC_DECLARE(SCTP_M_IFA);
128MALLOC_DECLARE(SCTP_M_IFN);
129MALLOC_DECLARE(SCTP_M_TIMW);
130MALLOC_DECLARE(SCTP_M_MVRF);
131MALLOC_DECLARE(SCTP_M_ITER);
132MALLOC_DECLARE(SCTP_M_SOCKOPT);
133MALLOC_DECLARE(SCTP_M_MCORE);
134
135#if defined(SCTP_LOCAL_TRACE_BUF)
136
137#define SCTP_GET_CYCLECOUNT get_cyclecount()
138#define SCTP_CTR6 sctp_log_trace
139
140#else
141#define SCTP_CTR6 CTR6
142#endif
143
144/*
145 * Macros to expand out globals defined by various modules
146 * to either a real global or a virtualized instance of one,
147 * depending on whether VIMAGE is defined.
148 */
149/* then define the macro(s) that hook into the vimage macros */
150#define MODULE_GLOBAL(__SYMBOL) V_##__SYMBOL
151
152#define V_system_base_info VNET(system_base_info)
153#define SCTP_BASE_INFO(__m) V_system_base_info.sctppcbinfo.__m
154#define SCTP_BASE_STATS V_system_base_info.sctpstat
155#define SCTP_BASE_STATS_SYSCTL VNET_NAME(system_base_info.sctpstat)
156#define SCTP_BASE_STAT(__m) V_system_base_info.sctpstat.__m
157#define SCTP_BASE_SYSCTL(__m) VNET_NAME(system_base_info.sctpsysctl.__m)
158#define SCTP_BASE_VAR(__m) V_system_base_info.__m
159
160/*
161 *
162 */
163#define USER_ADDR_NULL (NULL) /* FIX ME: temp */
164
165#define SCTP_PRINTF(params...) printf(params)
166#if defined(SCTP_DEBUG)
167#define SCTPDBG(level, params...) \
168{ \
169 do { \
170 if (SCTP_BASE_SYSCTL(sctp_debug_on) & level ) { \
171 SCTP_PRINTF(params); \
172 } \
173 } while (0); \
174}
175#define SCTPDBG_ADDR(level, addr) \
176{ \
177 do { \
178 if (SCTP_BASE_SYSCTL(sctp_debug_on) & level ) { \
179 sctp_print_address(addr); \
180 } \
181 } while (0); \
182}
183#else
184#define SCTPDBG(level, params...)
185#define SCTPDBG_ADDR(level, addr)
186#endif
187
188#ifdef SCTP_LTRACE_CHUNKS
189#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)
190#else
191#define SCTP_LTRACE_CHK(a, b, c, d)
192#endif
193
194#ifdef SCTP_LTRACE_ERRORS
195#define SCTP_LTRACE_ERR_RET_PKT(m, inp, stcb, net, file, err) \
196 if (SCTP_BASE_SYSCTL(sctp_logging_level) & SCTP_LTRACE_ERROR_ENABLE) \
197 SCTP_PRINTF("mbuf:%p inp:%p stcb:%p net:%p file:%x line:%d error:%d\n", \
198 m, inp, stcb, net, file, __LINE__, err);
199#define SCTP_LTRACE_ERR_RET(inp, stcb, net, file, err) \
200 if (SCTP_BASE_SYSCTL(sctp_logging_level) & SCTP_LTRACE_ERROR_ENABLE) \
201 SCTP_PRINTF("inp:%p stcb:%p net:%p file:%x line:%d error:%d\n", \
202 inp, stcb, net, file, __LINE__, err);
203#else
204#define SCTP_LTRACE_ERR_RET_PKT(m, inp, stcb, net, file, err)
205#define SCTP_LTRACE_ERR_RET(inp, stcb, net, file, err)
206#endif
207
208
209/*
210 * Local address and interface list handling
211 */
212#define SCTP_MAX_VRF_ID 0
213#define SCTP_SIZE_OF_VRF_HASH 3
214#define SCTP_IFNAMSIZ IFNAMSIZ
215#define SCTP_DEFAULT_VRFID 0
216#define SCTP_VRF_ADDR_HASH_SIZE 16
217#define SCTP_VRF_IFN_HASH_SIZE 3
218#define SCTP_INIT_VRF_TABLEID(vrf)
219
220#define SCTP_IFN_IS_IFT_LOOP(ifn) ((ifn)->ifn_type == IFT_LOOP)
221#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)
222
223/*
224 * Access to IFN's to help with src-addr-selection
225 */
226/* This could return VOID if the index works but for BSD we provide both. */
227#define SCTP_GET_IFN_VOID_FROM_ROUTE(ro) (void *)ro->ro_rt->rt_ifp
228#define SCTP_GET_IF_INDEX_FROM_ROUTE(ro) (ro)->ro_rt->rt_ifp->if_index
229#define SCTP_ROUTE_HAS_VALID_IFN(ro) ((ro)->ro_rt && (ro)->ro_rt->rt_ifp)
230
231/*
232 * general memory allocation
233 */
234#define SCTP_MALLOC(var, type, size, name) \
235 do { \
236 var = (type)malloc(size, name, M_NOWAIT); \
237 } while (0)
238
239#define SCTP_FREE(var, type) free(var, type)
240
241#define SCTP_MALLOC_SONAME(var, type, size) \
242 do { \
243 var = (type)malloc(size, M_SONAME, M_WAITOK | M_ZERO); \
244 } while (0)
245
246#define SCTP_FREE_SONAME(var) free(var, M_SONAME)
247
248#define SCTP_PROCESS_STRUCT struct proc *
249
250/*
251 * zone allocation functions
252 */
253#include <vm/uma.h>
254
255/* SCTP_ZONE_INIT: initialize the zone */
256typedef struct uma_zone *sctp_zone_t;
257
258#define SCTP_ZONE_INIT(zone, name, size, number) { \
259 zone = uma_zcreate(name, size, NULL, NULL, NULL, NULL, UMA_ALIGN_PTR,\
260 0); \
261 uma_zone_set_max(zone, number); \
262}
263
264#define SCTP_ZONE_DESTROY(zone) uma_zdestroy(zone)
265
266/* SCTP_ZONE_GET: allocate element from the zone */
267#define SCTP_ZONE_GET(zone, type) \
268 (type *)uma_zalloc(zone, M_NOWAIT);
269
270/* SCTP_ZONE_FREE: free element from the zone */
271#define SCTP_ZONE_FREE(zone, element) \
272 uma_zfree(zone, element);
273
274#define SCTP_HASH_INIT(size, hashmark) hashinit_flags(size, M_PCB, hashmark, HASH_NOWAIT)
275#define SCTP_HASH_FREE(table, hashmark) hashdestroy(table, M_PCB, hashmark)
276
277#define SCTP_M_COPYM m_copym
278
279/*
280 * timers
281 */
282#include <sys/callout.h>
283typedef struct callout sctp_os_timer_t;
284
285
286#define SCTP_OS_TIMER_INIT(tmr) callout_init(tmr, 1)
287#define SCTP_OS_TIMER_START callout_reset
288#define SCTP_OS_TIMER_STOP callout_stop
289#define SCTP_OS_TIMER_STOP_DRAIN callout_drain
290#define SCTP_OS_TIMER_PENDING callout_pending
291#define SCTP_OS_TIMER_ACTIVE callout_active
292#define SCTP_OS_TIMER_DEACTIVATE callout_deactivate
293
294#define sctp_get_tick_count() (ticks)
295
296#define SCTP_UNUSED __attribute__((unused))
297
298/*
299 * Functions
300 */
301/* Mbuf manipulation and access macros */
302#define SCTP_BUF_LEN(m) (m->m_len)
303#define SCTP_BUF_NEXT(m) (m->m_next)
304#define SCTP_BUF_NEXT_PKT(m) (m->m_nextpkt)
305#define SCTP_BUF_RESV_UF(m, size) m->m_data += size
306#define SCTP_BUF_AT(m, size) m->m_data + size
307#define SCTP_BUF_IS_EXTENDED(m) (m->m_flags & M_EXT)
308#define SCTP_BUF_EXTEND_SIZE(m) (m->m_ext.ext_size)
309#define SCTP_BUF_TYPE(m) (m->m_type)
310#define SCTP_BUF_RECVIF(m) (m->m_pkthdr.rcvif)
311#define SCTP_BUF_PREPEND M_PREPEND
312
313#define SCTP_ALIGN_TO_END(m, len) if(m->m_flags & M_PKTHDR) { \
314 MH_ALIGN(m, len); \
315 } else if ((m->m_flags & M_EXT) == 0) { \
316 M_ALIGN(m, len); \
317 }
318
319/* We make it so if you have up to 4 threads
320 * writing based on the default size of
321 * the packet log 65 k, that would be
322 * 4 16k packets before we would hit
323 * a problem.
324 */
325#define SCTP_PKTLOG_WRITERS_NEED_LOCK 3
326
327/*************************/
328/* MTU */
329/*************************/
330#define SCTP_GATHER_MTU_FROM_IFN_INFO(ifn, ifn_index, af) ((struct ifnet *)ifn)->if_mtu
| 35
36#ifndef _NETINET_SCTP_OS_BSD_H_
37#define _NETINET_SCTP_OS_BSD_H_
38/*
39 * includes
40 */
41#include "opt_ipsec.h"
42#include "opt_compat.h"
43#include "opt_inet6.h"
44#include "opt_inet.h"
45#include "opt_sctp.h"
46
47#include <sys/param.h>
48#include <sys/ktr.h>
49#include <sys/systm.h>
50#include <sys/malloc.h>
51#include <sys/kernel.h>
52#include <sys/sysctl.h>
53#include <sys/mbuf.h>
54#include <sys/protosw.h>
55#include <sys/socket.h>
56#include <sys/socketvar.h>
57#include <sys/jail.h>
58#include <sys/sysctl.h>
59#include <sys/resourcevar.h>
60#include <sys/uio.h>
61#include <sys/lock.h>
62#include <sys/rwlock.h>
63#include <sys/kthread.h>
64#include <sys/priv.h>
65#include <sys/random.h>
66#include <sys/limits.h>
67#include <sys/queue.h>
68#include <machine/cpu.h>
69
70#include <net/if.h>
71#include <net/if_types.h>
72#include <net/if_var.h>
73#include <net/route.h>
74#include <net/vnet.h>
75
76#include <netinet/in.h>
77#include <netinet/in_systm.h>
78#include <netinet/ip.h>
79#include <netinet/in_pcb.h>
80#include <netinet/in_var.h>
81#include <netinet/ip_var.h>
82#include <netinet/ip_icmp.h>
83#include <netinet/icmp_var.h>
84
85#ifdef IPSEC
86#include <netipsec/ipsec.h>
87#include <netipsec/key.h>
88#endif /* IPSEC */
89
90#ifdef INET6
91#include <sys/domain.h>
92#ifdef IPSEC
93#include <netipsec/ipsec6.h>
94#endif
95#include <netinet/ip6.h>
96#include <netinet6/ip6_var.h>
97#include <netinet6/in6_pcb.h>
98#include <netinet/icmp6.h>
99#include <netinet6/ip6protosw.h>
100#include <netinet6/nd6.h>
101#include <netinet6/scope6_var.h>
102#endif /* INET6 */
103
104
105#include <netinet/ip_options.h>
106
107#include <crypto/sha1.h>
108#include <crypto/sha2/sha2.h>
109
110#ifndef in6pcb
111#define in6pcb inpcb
112#endif
113/* Declare all the malloc names for all the various mallocs */
114MALLOC_DECLARE(SCTP_M_MAP);
115MALLOC_DECLARE(SCTP_M_STRMI);
116MALLOC_DECLARE(SCTP_M_STRMO);
117MALLOC_DECLARE(SCTP_M_ASC_ADDR);
118MALLOC_DECLARE(SCTP_M_ASC_IT);
119MALLOC_DECLARE(SCTP_M_AUTH_CL);
120MALLOC_DECLARE(SCTP_M_AUTH_KY);
121MALLOC_DECLARE(SCTP_M_AUTH_HL);
122MALLOC_DECLARE(SCTP_M_AUTH_IF);
123MALLOC_DECLARE(SCTP_M_STRESET);
124MALLOC_DECLARE(SCTP_M_CMSG);
125MALLOC_DECLARE(SCTP_M_COPYAL);
126MALLOC_DECLARE(SCTP_M_VRF);
127MALLOC_DECLARE(SCTP_M_IFA);
128MALLOC_DECLARE(SCTP_M_IFN);
129MALLOC_DECLARE(SCTP_M_TIMW);
130MALLOC_DECLARE(SCTP_M_MVRF);
131MALLOC_DECLARE(SCTP_M_ITER);
132MALLOC_DECLARE(SCTP_M_SOCKOPT);
133MALLOC_DECLARE(SCTP_M_MCORE);
134
135#if defined(SCTP_LOCAL_TRACE_BUF)
136
137#define SCTP_GET_CYCLECOUNT get_cyclecount()
138#define SCTP_CTR6 sctp_log_trace
139
140#else
141#define SCTP_CTR6 CTR6
142#endif
143
144/*
145 * Macros to expand out globals defined by various modules
146 * to either a real global or a virtualized instance of one,
147 * depending on whether VIMAGE is defined.
148 */
149/* then define the macro(s) that hook into the vimage macros */
150#define MODULE_GLOBAL(__SYMBOL) V_##__SYMBOL
151
152#define V_system_base_info VNET(system_base_info)
153#define SCTP_BASE_INFO(__m) V_system_base_info.sctppcbinfo.__m
154#define SCTP_BASE_STATS V_system_base_info.sctpstat
155#define SCTP_BASE_STATS_SYSCTL VNET_NAME(system_base_info.sctpstat)
156#define SCTP_BASE_STAT(__m) V_system_base_info.sctpstat.__m
157#define SCTP_BASE_SYSCTL(__m) VNET_NAME(system_base_info.sctpsysctl.__m)
158#define SCTP_BASE_VAR(__m) V_system_base_info.__m
159
160/*
161 *
162 */
163#define USER_ADDR_NULL (NULL) /* FIX ME: temp */
164
165#define SCTP_PRINTF(params...) printf(params)
166#if defined(SCTP_DEBUG)
167#define SCTPDBG(level, params...) \
168{ \
169 do { \
170 if (SCTP_BASE_SYSCTL(sctp_debug_on) & level ) { \
171 SCTP_PRINTF(params); \
172 } \
173 } while (0); \
174}
175#define SCTPDBG_ADDR(level, addr) \
176{ \
177 do { \
178 if (SCTP_BASE_SYSCTL(sctp_debug_on) & level ) { \
179 sctp_print_address(addr); \
180 } \
181 } while (0); \
182}
183#else
184#define SCTPDBG(level, params...)
185#define SCTPDBG_ADDR(level, addr)
186#endif
187
188#ifdef SCTP_LTRACE_CHUNKS
189#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)
190#else
191#define SCTP_LTRACE_CHK(a, b, c, d)
192#endif
193
194#ifdef SCTP_LTRACE_ERRORS
195#define SCTP_LTRACE_ERR_RET_PKT(m, inp, stcb, net, file, err) \
196 if (SCTP_BASE_SYSCTL(sctp_logging_level) & SCTP_LTRACE_ERROR_ENABLE) \
197 SCTP_PRINTF("mbuf:%p inp:%p stcb:%p net:%p file:%x line:%d error:%d\n", \
198 m, inp, stcb, net, file, __LINE__, err);
199#define SCTP_LTRACE_ERR_RET(inp, stcb, net, file, err) \
200 if (SCTP_BASE_SYSCTL(sctp_logging_level) & SCTP_LTRACE_ERROR_ENABLE) \
201 SCTP_PRINTF("inp:%p stcb:%p net:%p file:%x line:%d error:%d\n", \
202 inp, stcb, net, file, __LINE__, err);
203#else
204#define SCTP_LTRACE_ERR_RET_PKT(m, inp, stcb, net, file, err)
205#define SCTP_LTRACE_ERR_RET(inp, stcb, net, file, err)
206#endif
207
208
209/*
210 * Local address and interface list handling
211 */
212#define SCTP_MAX_VRF_ID 0
213#define SCTP_SIZE_OF_VRF_HASH 3
214#define SCTP_IFNAMSIZ IFNAMSIZ
215#define SCTP_DEFAULT_VRFID 0
216#define SCTP_VRF_ADDR_HASH_SIZE 16
217#define SCTP_VRF_IFN_HASH_SIZE 3
218#define SCTP_INIT_VRF_TABLEID(vrf)
219
220#define SCTP_IFN_IS_IFT_LOOP(ifn) ((ifn)->ifn_type == IFT_LOOP)
221#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)
222
223/*
224 * Access to IFN's to help with src-addr-selection
225 */
226/* This could return VOID if the index works but for BSD we provide both. */
227#define SCTP_GET_IFN_VOID_FROM_ROUTE(ro) (void *)ro->ro_rt->rt_ifp
228#define SCTP_GET_IF_INDEX_FROM_ROUTE(ro) (ro)->ro_rt->rt_ifp->if_index
229#define SCTP_ROUTE_HAS_VALID_IFN(ro) ((ro)->ro_rt && (ro)->ro_rt->rt_ifp)
230
231/*
232 * general memory allocation
233 */
234#define SCTP_MALLOC(var, type, size, name) \
235 do { \
236 var = (type)malloc(size, name, M_NOWAIT); \
237 } while (0)
238
239#define SCTP_FREE(var, type) free(var, type)
240
241#define SCTP_MALLOC_SONAME(var, type, size) \
242 do { \
243 var = (type)malloc(size, M_SONAME, M_WAITOK | M_ZERO); \
244 } while (0)
245
246#define SCTP_FREE_SONAME(var) free(var, M_SONAME)
247
248#define SCTP_PROCESS_STRUCT struct proc *
249
250/*
251 * zone allocation functions
252 */
253#include <vm/uma.h>
254
255/* SCTP_ZONE_INIT: initialize the zone */
256typedef struct uma_zone *sctp_zone_t;
257
258#define SCTP_ZONE_INIT(zone, name, size, number) { \
259 zone = uma_zcreate(name, size, NULL, NULL, NULL, NULL, UMA_ALIGN_PTR,\
260 0); \
261 uma_zone_set_max(zone, number); \
262}
263
264#define SCTP_ZONE_DESTROY(zone) uma_zdestroy(zone)
265
266/* SCTP_ZONE_GET: allocate element from the zone */
267#define SCTP_ZONE_GET(zone, type) \
268 (type *)uma_zalloc(zone, M_NOWAIT);
269
270/* SCTP_ZONE_FREE: free element from the zone */
271#define SCTP_ZONE_FREE(zone, element) \
272 uma_zfree(zone, element);
273
274#define SCTP_HASH_INIT(size, hashmark) hashinit_flags(size, M_PCB, hashmark, HASH_NOWAIT)
275#define SCTP_HASH_FREE(table, hashmark) hashdestroy(table, M_PCB, hashmark)
276
277#define SCTP_M_COPYM m_copym
278
279/*
280 * timers
281 */
282#include <sys/callout.h>
283typedef struct callout sctp_os_timer_t;
284
285
286#define SCTP_OS_TIMER_INIT(tmr) callout_init(tmr, 1)
287#define SCTP_OS_TIMER_START callout_reset
288#define SCTP_OS_TIMER_STOP callout_stop
289#define SCTP_OS_TIMER_STOP_DRAIN callout_drain
290#define SCTP_OS_TIMER_PENDING callout_pending
291#define SCTP_OS_TIMER_ACTIVE callout_active
292#define SCTP_OS_TIMER_DEACTIVATE callout_deactivate
293
294#define sctp_get_tick_count() (ticks)
295
296#define SCTP_UNUSED __attribute__((unused))
297
298/*
299 * Functions
300 */
301/* Mbuf manipulation and access macros */
302#define SCTP_BUF_LEN(m) (m->m_len)
303#define SCTP_BUF_NEXT(m) (m->m_next)
304#define SCTP_BUF_NEXT_PKT(m) (m->m_nextpkt)
305#define SCTP_BUF_RESV_UF(m, size) m->m_data += size
306#define SCTP_BUF_AT(m, size) m->m_data + size
307#define SCTP_BUF_IS_EXTENDED(m) (m->m_flags & M_EXT)
308#define SCTP_BUF_EXTEND_SIZE(m) (m->m_ext.ext_size)
309#define SCTP_BUF_TYPE(m) (m->m_type)
310#define SCTP_BUF_RECVIF(m) (m->m_pkthdr.rcvif)
311#define SCTP_BUF_PREPEND M_PREPEND
312
313#define SCTP_ALIGN_TO_END(m, len) if(m->m_flags & M_PKTHDR) { \
314 MH_ALIGN(m, len); \
315 } else if ((m->m_flags & M_EXT) == 0) { \
316 M_ALIGN(m, len); \
317 }
318
319/* We make it so if you have up to 4 threads
320 * writing based on the default size of
321 * the packet log 65 k, that would be
322 * 4 16k packets before we would hit
323 * a problem.
324 */
325#define SCTP_PKTLOG_WRITERS_NEED_LOCK 3
326
327/*************************/
328/* MTU */
329/*************************/
330#define SCTP_GATHER_MTU_FROM_IFN_INFO(ifn, ifn_index, af) ((struct ifnet *)ifn)->if_mtu
|
331#define SCTP_GATHER_MTU_FROM_ROUTE(sctp_ifa, sa, rt) ((rt != NULL) ? rt->rt_rmx.rmx_mtu : 0)
| 331#define SCTP_GATHER_MTU_FROM_ROUTE(sctp_ifa, sa, rt) ((rt != NULL) ? rt->rt_mtu : 0)
|
332#define SCTP_GATHER_MTU_FROM_INTFC(sctp_ifn) ((sctp_ifn->ifn_p != NULL) ? ((struct ifnet *)(sctp_ifn->ifn_p))->if_mtu : 0)
333#define SCTP_SET_MTU_OF_ROUTE(sa, rt, mtu) do { \
334 if (rt != NULL) \
| 332#define SCTP_GATHER_MTU_FROM_INTFC(sctp_ifn) ((sctp_ifn->ifn_p != NULL) ? ((struct ifnet *)(sctp_ifn->ifn_p))->if_mtu : 0)
333#define SCTP_SET_MTU_OF_ROUTE(sa, rt, mtu) do { \
334 if (rt != NULL) \
|
335 rt->rt_rmx.rmx_mtu = mtu; \
| 335 rt->rt_mtu = mtu; \
|
336 } while(0)
337
338/* (de-)register interface event notifications */
339#define SCTP_REGISTER_INTERFACE(ifhandle, af)
340#define SCTP_DEREGISTER_INTERFACE(ifhandle, af)
341
342
343/*************************/
344/* These are for logging */
345/*************************/
346/* return the base ext data pointer */
347#define SCTP_BUF_EXTEND_BASE(m) (m->m_ext.ext_buf)
348 /* return the refcnt of the data pointer */
349#define SCTP_BUF_EXTEND_REFCNT(m) (*m->m_ext.ref_cnt)
350/* return any buffer related flags, this is
351 * used beyond logging for apple only.
352 */
353#define SCTP_BUF_GET_FLAGS(m) (m->m_flags)
354
355/* For BSD this just accesses the M_PKTHDR length
356 * so it operates on an mbuf with hdr flag. Other
357 * O/S's may have separate packet header and mbuf
358 * chain pointers.. thus the macro.
359 */
360#define SCTP_HEADER_TO_CHAIN(m) (m)
361#define SCTP_DETACH_HEADER_FROM_CHAIN(m)
362#define SCTP_HEADER_LEN(m) ((m)->m_pkthdr.len)
363#define SCTP_GET_HEADER_FOR_OUTPUT(o_pak) 0
364#define SCTP_RELEASE_HEADER(m)
365#define SCTP_RELEASE_PKT(m) sctp_m_freem(m)
366#define SCTP_ENABLE_UDP_CSUM(m) do { \
367 m->m_pkthdr.csum_flags = CSUM_UDP; \
368 m->m_pkthdr.csum_data = offsetof(struct udphdr, uh_sum); \
369 } while (0)
370
371#define SCTP_GET_PKT_VRFID(m, vrf_id) ((vrf_id = SCTP_DEFAULT_VRFID) != SCTP_DEFAULT_VRFID)
372
373
374
375/* Attach the chain of data into the sendable packet. */
376#define SCTP_ATTACH_CHAIN(pak, m, packet_length) do { \
377 pak = m; \
378 pak->m_pkthdr.len = packet_length; \
379 } while(0)
380
381/* Other m_pkthdr type things */
382#define SCTP_IS_IT_BROADCAST(dst, m) ((m->m_flags & M_PKTHDR) ? in_broadcast(dst, m->m_pkthdr.rcvif) : 0)
383#define SCTP_IS_IT_LOOPBACK(m) ((m->m_flags & M_PKTHDR) && ((m->m_pkthdr.rcvif == NULL) || (m->m_pkthdr.rcvif->if_type == IFT_LOOP)))
384
385
386/* This converts any input packet header
387 * into the chain of data holders, for BSD
388 * its a NOP.
389 */
390
391/* get the v6 hop limit */
392#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)));
393
394/* is the endpoint v6only? */
395#define SCTP_IPV6_V6ONLY(inp) (((struct inpcb *)inp)->inp_flags & IN6P_IPV6_V6ONLY)
396/* is the socket non-blocking? */
397#define SCTP_SO_IS_NBIO(so) ((so)->so_state & SS_NBIO)
398#define SCTP_SET_SO_NBIO(so) ((so)->so_state |= SS_NBIO)
399#define SCTP_CLEAR_SO_NBIO(so) ((so)->so_state &= ~SS_NBIO)
400/* get the socket type */
401#define SCTP_SO_TYPE(so) ((so)->so_type)
402/* reserve sb space for a socket */
403#define SCTP_SORESERVE(so, send, recv) soreserve(so, send, recv)
404/* wakeup a socket */
405#define SCTP_SOWAKEUP(so) wakeup(&(so)->so_timeo)
406/* clear the socket buffer state */
407#define SCTP_SB_CLEAR(sb) \
408 (sb).sb_cc = 0; \
409 (sb).sb_mb = NULL; \
410 (sb).sb_mbcnt = 0;
411
412#define SCTP_SB_LIMIT_RCV(so) so->so_rcv.sb_hiwat
413#define SCTP_SB_LIMIT_SND(so) so->so_snd.sb_hiwat
414
415/*
416 * routes, output, etc.
417 */
418typedef struct route sctp_route_t;
419typedef struct rtentry sctp_rtentry_t;
420
421/*
422 * XXX multi-FIB support was backed out in r179783 and it seems clear that the
423 * VRF support as currently in FreeBSD is not ready to support multi-FIB.
424 * It might be best to implement multi-FIB support for both v4 and v6 indepedent
425 * of VRFs and leave those to a real MPLS stack.
426 */
427#define SCTP_RTALLOC(ro, vrf_id) rtalloc_ign((struct route *)ro, 0UL)
428
429/* Future zero copy wakeup/send function */
430#define SCTP_ZERO_COPY_EVENT(inp, so)
431/* This is re-pulse ourselves for sendbuf */
432#define SCTP_ZERO_COPY_SENDQ_EVENT(inp, so)
433
434/*
435 * SCTP protocol specific mbuf flags.
436 */
437#define M_NOTIFICATION M_PROTO1 /* SCTP notification */
438
439/*
440 * IP output routines
441 */
442#define SCTP_IP_OUTPUT(result, o_pak, ro, stcb, vrf_id) \
443{ \
444 int o_flgs = IP_RAWOUTPUT; \
445 struct sctp_tcb *local_stcb = stcb; \
446 if (local_stcb && \
447 local_stcb->sctp_ep && \
448 local_stcb->sctp_ep->sctp_socket) \
449 o_flgs |= local_stcb->sctp_ep->sctp_socket->so_options & SO_DONTROUTE; \
450 m_clrprotoflags(o_pak); \
451 result = ip_output(o_pak, NULL, ro, o_flgs, 0, NULL); \
452}
453
454#define SCTP_IP6_OUTPUT(result, o_pak, ro, ifp, stcb, vrf_id) \
455{ \
456 struct sctp_tcb *local_stcb = stcb; \
457 m_clrprotoflags(o_pak); \
458 if (local_stcb && local_stcb->sctp_ep) \
459 result = ip6_output(o_pak, \
460 ((struct in6pcb *)(local_stcb->sctp_ep))->in6p_outputopts, \
461 (ro), 0, 0, ifp, NULL); \
462 else \
463 result = ip6_output(o_pak, NULL, (ro), 0, 0, ifp, NULL); \
464}
465
466struct mbuf *
467sctp_get_mbuf_for_msg(unsigned int space_needed,
468 int want_header, int how, int allonebuf, int type);
469
470
471/*
472 * SCTP AUTH
473 */
474#define SCTP_READ_RANDOM(buf, len) read_random(buf, len)
475
476/* map standard crypto API names */
477#define SCTP_SHA1_CTX SHA1_CTX
478#define SCTP_SHA1_INIT SHA1Init
479#define SCTP_SHA1_UPDATE SHA1Update
480#define SCTP_SHA1_FINAL(x,y) SHA1Final((caddr_t)x, y)
481
482#define SCTP_SHA256_CTX SHA256_CTX
483#define SCTP_SHA256_INIT SHA256_Init
484#define SCTP_SHA256_UPDATE SHA256_Update
485#define SCTP_SHA256_FINAL(x,y) SHA256_Final((caddr_t)x, y)
486
487#endif
488
489#define SCTP_DECREMENT_AND_CHECK_REFCOUNT(addr) (atomic_fetchadd_int(addr, -1) == 1)
490#if defined(INVARIANTS)
491#define SCTP_SAVE_ATOMIC_DECREMENT(addr, val) \
492{ \
493 int32_t oldval; \
494 oldval = atomic_fetchadd_int(addr, -val); \
495 if (oldval < val) { \
496 panic("Counter goes negative"); \
497 } \
498}
499#else
500#define SCTP_SAVE_ATOMIC_DECREMENT(addr, val) \
501{ \
502 int32_t oldval; \
503 oldval = atomic_fetchadd_int(addr, -val); \
504 if (oldval < val) { \
505 *addr = 0; \
506 } \
507}
508#endif
| 336 } while(0)
337
338/* (de-)register interface event notifications */
339#define SCTP_REGISTER_INTERFACE(ifhandle, af)
340#define SCTP_DEREGISTER_INTERFACE(ifhandle, af)
341
342
343/*************************/
344/* These are for logging */
345/*************************/
346/* return the base ext data pointer */
347#define SCTP_BUF_EXTEND_BASE(m) (m->m_ext.ext_buf)
348 /* return the refcnt of the data pointer */
349#define SCTP_BUF_EXTEND_REFCNT(m) (*m->m_ext.ref_cnt)
350/* return any buffer related flags, this is
351 * used beyond logging for apple only.
352 */
353#define SCTP_BUF_GET_FLAGS(m) (m->m_flags)
354
355/* For BSD this just accesses the M_PKTHDR length
356 * so it operates on an mbuf with hdr flag. Other
357 * O/S's may have separate packet header and mbuf
358 * chain pointers.. thus the macro.
359 */
360#define SCTP_HEADER_TO_CHAIN(m) (m)
361#define SCTP_DETACH_HEADER_FROM_CHAIN(m)
362#define SCTP_HEADER_LEN(m) ((m)->m_pkthdr.len)
363#define SCTP_GET_HEADER_FOR_OUTPUT(o_pak) 0
364#define SCTP_RELEASE_HEADER(m)
365#define SCTP_RELEASE_PKT(m) sctp_m_freem(m)
366#define SCTP_ENABLE_UDP_CSUM(m) do { \
367 m->m_pkthdr.csum_flags = CSUM_UDP; \
368 m->m_pkthdr.csum_data = offsetof(struct udphdr, uh_sum); \
369 } while (0)
370
371#define SCTP_GET_PKT_VRFID(m, vrf_id) ((vrf_id = SCTP_DEFAULT_VRFID) != SCTP_DEFAULT_VRFID)
372
373
374
375/* Attach the chain of data into the sendable packet. */
376#define SCTP_ATTACH_CHAIN(pak, m, packet_length) do { \
377 pak = m; \
378 pak->m_pkthdr.len = packet_length; \
379 } while(0)
380
381/* Other m_pkthdr type things */
382#define SCTP_IS_IT_BROADCAST(dst, m) ((m->m_flags & M_PKTHDR) ? in_broadcast(dst, m->m_pkthdr.rcvif) : 0)
383#define SCTP_IS_IT_LOOPBACK(m) ((m->m_flags & M_PKTHDR) && ((m->m_pkthdr.rcvif == NULL) || (m->m_pkthdr.rcvif->if_type == IFT_LOOP)))
384
385
386/* This converts any input packet header
387 * into the chain of data holders, for BSD
388 * its a NOP.
389 */
390
391/* get the v6 hop limit */
392#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)));
393
394/* is the endpoint v6only? */
395#define SCTP_IPV6_V6ONLY(inp) (((struct inpcb *)inp)->inp_flags & IN6P_IPV6_V6ONLY)
396/* is the socket non-blocking? */
397#define SCTP_SO_IS_NBIO(so) ((so)->so_state & SS_NBIO)
398#define SCTP_SET_SO_NBIO(so) ((so)->so_state |= SS_NBIO)
399#define SCTP_CLEAR_SO_NBIO(so) ((so)->so_state &= ~SS_NBIO)
400/* get the socket type */
401#define SCTP_SO_TYPE(so) ((so)->so_type)
402/* reserve sb space for a socket */
403#define SCTP_SORESERVE(so, send, recv) soreserve(so, send, recv)
404/* wakeup a socket */
405#define SCTP_SOWAKEUP(so) wakeup(&(so)->so_timeo)
406/* clear the socket buffer state */
407#define SCTP_SB_CLEAR(sb) \
408 (sb).sb_cc = 0; \
409 (sb).sb_mb = NULL; \
410 (sb).sb_mbcnt = 0;
411
412#define SCTP_SB_LIMIT_RCV(so) so->so_rcv.sb_hiwat
413#define SCTP_SB_LIMIT_SND(so) so->so_snd.sb_hiwat
414
415/*
416 * routes, output, etc.
417 */
418typedef struct route sctp_route_t;
419typedef struct rtentry sctp_rtentry_t;
420
421/*
422 * XXX multi-FIB support was backed out in r179783 and it seems clear that the
423 * VRF support as currently in FreeBSD is not ready to support multi-FIB.
424 * It might be best to implement multi-FIB support for both v4 and v6 indepedent
425 * of VRFs and leave those to a real MPLS stack.
426 */
427#define SCTP_RTALLOC(ro, vrf_id) rtalloc_ign((struct route *)ro, 0UL)
428
429/* Future zero copy wakeup/send function */
430#define SCTP_ZERO_COPY_EVENT(inp, so)
431/* This is re-pulse ourselves for sendbuf */
432#define SCTP_ZERO_COPY_SENDQ_EVENT(inp, so)
433
434/*
435 * SCTP protocol specific mbuf flags.
436 */
437#define M_NOTIFICATION M_PROTO1 /* SCTP notification */
438
439/*
440 * IP output routines
441 */
442#define SCTP_IP_OUTPUT(result, o_pak, ro, stcb, vrf_id) \
443{ \
444 int o_flgs = IP_RAWOUTPUT; \
445 struct sctp_tcb *local_stcb = stcb; \
446 if (local_stcb && \
447 local_stcb->sctp_ep && \
448 local_stcb->sctp_ep->sctp_socket) \
449 o_flgs |= local_stcb->sctp_ep->sctp_socket->so_options & SO_DONTROUTE; \
450 m_clrprotoflags(o_pak); \
451 result = ip_output(o_pak, NULL, ro, o_flgs, 0, NULL); \
452}
453
454#define SCTP_IP6_OUTPUT(result, o_pak, ro, ifp, stcb, vrf_id) \
455{ \
456 struct sctp_tcb *local_stcb = stcb; \
457 m_clrprotoflags(o_pak); \
458 if (local_stcb && local_stcb->sctp_ep) \
459 result = ip6_output(o_pak, \
460 ((struct in6pcb *)(local_stcb->sctp_ep))->in6p_outputopts, \
461 (ro), 0, 0, ifp, NULL); \
462 else \
463 result = ip6_output(o_pak, NULL, (ro), 0, 0, ifp, NULL); \
464}
465
466struct mbuf *
467sctp_get_mbuf_for_msg(unsigned int space_needed,
468 int want_header, int how, int allonebuf, int type);
469
470
471/*
472 * SCTP AUTH
473 */
474#define SCTP_READ_RANDOM(buf, len) read_random(buf, len)
475
476/* map standard crypto API names */
477#define SCTP_SHA1_CTX SHA1_CTX
478#define SCTP_SHA1_INIT SHA1Init
479#define SCTP_SHA1_UPDATE SHA1Update
480#define SCTP_SHA1_FINAL(x,y) SHA1Final((caddr_t)x, y)
481
482#define SCTP_SHA256_CTX SHA256_CTX
483#define SCTP_SHA256_INIT SHA256_Init
484#define SCTP_SHA256_UPDATE SHA256_Update
485#define SCTP_SHA256_FINAL(x,y) SHA256_Final((caddr_t)x, y)
486
487#endif
488
489#define SCTP_DECREMENT_AND_CHECK_REFCOUNT(addr) (atomic_fetchadd_int(addr, -1) == 1)
490#if defined(INVARIANTS)
491#define SCTP_SAVE_ATOMIC_DECREMENT(addr, val) \
492{ \
493 int32_t oldval; \
494 oldval = atomic_fetchadd_int(addr, -val); \
495 if (oldval < val) { \
496 panic("Counter goes negative"); \
497 } \
498}
499#else
500#define SCTP_SAVE_ATOMIC_DECREMENT(addr, val) \
501{ \
502 int32_t oldval; \
503 oldval = atomic_fetchadd_int(addr, -val); \
504 if (oldval < val) { \
505 *addr = 0; \
506 } \
507}
508#endif
|