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718e3744 | 1 | /* Zebra common header. |
2 | Copyright (C) 1997, 1998, 1999, 2000, 2001, 2002 Kunihiro Ishiguro | |
3 | ||
4 | This file is part of GNU Zebra. | |
5 | ||
6 | GNU Zebra is free software; you can redistribute it and/or modify it | |
7 | under the terms of the GNU General Public License as published by the | |
8 | Free Software Foundation; either version 2, or (at your option) any | |
9 | later version. | |
10 | ||
11 | GNU Zebra is distributed in the hope that it will be useful, but | |
12 | WITHOUT ANY WARRANTY; without even the implied warranty of | |
13 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
14 | General Public License for more details. | |
15 | ||
16 | You should have received a copy of the GNU General Public License | |
17 | along with GNU Zebra; see the file COPYING. If not, write to the Free | |
18 | Software Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA | |
19 | 02111-1307, USA. */ | |
20 | ||
21 | #ifndef _ZEBRA_H | |
22 | #define _ZEBRA_H | |
23 | ||
24 | #ifdef HAVE_CONFIG_H | |
25 | #include "config.h" | |
26 | #endif /* HAVE_CONFIG_H */ | |
27 | ||
28 | #ifdef SUNOS_5 | |
29 | #define _XPG4_2 | |
30 | #define __EXTENSIONS__ | |
9bcdb638 | 31 | typedef unsigned int u_int32_t; |
32 | typedef unsigned short u_int16_t; | |
33 | typedef unsigned char u_int8_t; | |
718e3744 | 34 | #endif /* SUNOS_5 */ |
35 | ||
f0438521 | 36 | #ifndef HAVE_SOCKLEN_T |
37 | typedef int socklen_t; | |
38 | #endif /* HAVE_SOCKLEN_T */ | |
39 | ||
718e3744 | 40 | #include <unistd.h> |
41 | #include <stdio.h> | |
42 | #include <stdlib.h> | |
43 | #include <ctype.h> | |
44 | #include <errno.h> | |
45 | #include <fcntl.h> | |
46 | #include <signal.h> | |
47 | #include <string.h> | |
edd7c245 | 48 | #include <pwd.h> |
49 | #include <grp.h> | |
718e3744 | 50 | #ifdef HAVE_STROPTS_H |
51 | #include <stropts.h> | |
52 | #endif /* HAVE_STROPTS_H */ | |
53 | #include <sys/fcntl.h> | |
54 | #ifdef HAVE_SYS_SELECT_H | |
55 | #include <sys/select.h> | |
56 | #endif /* HAVE_SYS_SELECT_H */ | |
57 | #include <sys/stat.h> | |
58 | #include <sys/time.h> | |
59 | #include <sys/types.h> | |
60 | #include <sys/param.h> | |
61 | #ifdef HAVE_SYS_SYSCTL_H | |
62 | #include <sys/sysctl.h> | |
63 | #endif /* HAVE_SYS_SYSCTL_H */ | |
64 | #include <sys/ioctl.h> | |
65 | #ifdef HAVE_SYS_CONF_H | |
66 | #include <sys/conf.h> | |
67 | #endif /* HAVE_SYS_CONF_H */ | |
68 | #ifdef HAVE_SYS_KSYM_H | |
69 | #include <sys/ksym.h> | |
70 | #endif /* HAVE_SYS_KSYM_H */ | |
71 | #include <syslog.h> | |
72 | #include <time.h> | |
73 | #include <sys/uio.h> | |
74 | #include <sys/utsname.h> | |
75 | #ifdef HAVE_RUSAGE | |
76 | #include <sys/resource.h> | |
77 | #endif /* HAVE_RUSAGE */ | |
a58c25b6 | 78 | #ifdef HAVE_LIMITS_H |
79 | #include <limits.h> | |
80 | #endif /* HAVE_LIMITS_H */ | |
718e3744 | 81 | |
82 | /* machine dependent includes */ | |
83 | #ifdef SUNOS_5 | |
718e3744 | 84 | #include <strings.h> |
85 | #endif /* SUNOS_5 */ | |
86 | ||
87 | /* machine dependent includes */ | |
88 | #ifdef HAVE_LINUX_VERSION_H | |
89 | #include <linux/version.h> | |
90 | #endif /* HAVE_LINUX_VERSION_H */ | |
91 | ||
ba965c6c | 92 | #ifdef HAVE_ASM_TYPES_H |
93 | #include <asm/types.h> | |
94 | #endif /* HAVE_ASM_TYPES_H */ | |
95 | ||
718e3744 | 96 | /* misc include group */ |
97 | #include <stdarg.h> | |
98 | #include <assert.h> | |
99 | ||
ba3a0bc5 | 100 | #ifdef HAVE_LCAPS |
101 | #include <sys/capability.h> | |
102 | #include <sys/prctl.h> | |
103 | #endif /* HAVE_LCAPS */ | |
104 | ||
718e3744 | 105 | /* network include group */ |
106 | ||
107 | #include <sys/socket.h> | |
108 | ||
109 | #ifdef HAVE_SYS_SOCKIO_H | |
110 | #include <sys/sockio.h> | |
111 | #endif /* HAVE_SYS_SOCKIO_H */ | |
112 | ||
113 | #ifdef HAVE_NETINET_IN_H | |
114 | #include <netinet/in.h> | |
115 | #endif /* HAVE_NETINET_IN_H */ | |
116 | #include <netinet/in_systm.h> | |
117 | #include <netinet/ip.h> | |
118 | #include <netinet/tcp.h> | |
119 | ||
120 | #ifdef HAVE_NET_NETOPT_H | |
121 | #include <net/netopt.h> | |
122 | #endif /* HAVE_NET_NETOPT_H */ | |
123 | ||
124 | #include <net/if.h> | |
125 | ||
126 | #ifdef HAVE_NET_IF_DL_H | |
127 | #include <net/if_dl.h> | |
128 | #endif /* HAVE_NET_IF_DL_H */ | |
129 | ||
130 | #ifdef HAVE_NET_IF_VAR_H | |
131 | #include <net/if_var.h> | |
132 | #endif /* HAVE_NET_IF_VAR_H */ | |
133 | ||
a58c25b6 | 134 | #ifdef HAVE_NET_ROUTE_H |
718e3744 | 135 | #include <net/route.h> |
a58c25b6 | 136 | #endif /* HAVE_NET_ROUTE_H */ |
718e3744 | 137 | |
138 | #ifdef HAVE_NETLINK | |
139 | #include <linux/netlink.h> | |
140 | #include <linux/rtnetlink.h> | |
141 | #else | |
142 | #define RT_TABLE_MAIN 0 | |
143 | #endif /* HAVE_NETLINK */ | |
144 | ||
145 | #ifdef HAVE_NETDB_H | |
146 | #include <netdb.h> | |
147 | #endif /* HAVE_NETDB_H */ | |
148 | ||
149 | #include <arpa/inet.h> | |
150 | #include <arpa/telnet.h> | |
151 | ||
152 | #ifdef HAVE_INET_ND_H | |
153 | #include <inet/nd.h> | |
154 | #endif /* HAVE_INET_ND_H */ | |
155 | ||
156 | #ifdef HAVE_NETINET_IN_VAR_H | |
157 | #include <netinet/in_var.h> | |
158 | #endif /* HAVE_NETINET_IN_VAR_H */ | |
159 | ||
726f9b2b | 160 | #ifdef HAVE_NETINET6_IN6_VAR_H |
161 | #include <netinet6/in6_var.h> | |
162 | #endif /* HAVE_NETINET6_IN6_VAR_H */ | |
163 | ||
718e3744 | 164 | #ifdef HAVE_NETINET_IN6_VAR_H |
165 | #include <netinet/in6_var.h> | |
166 | #endif /* HAVE_NETINET_IN6_VAR_H */ | |
167 | ||
168 | #ifdef HAVE_NETINET6_IN_H | |
169 | #include <netinet6/in.h> | |
170 | #endif /* HAVE_NETINET6_IN_H */ | |
171 | ||
172 | ||
173 | #ifdef HAVE_NETINET6_IP6_H | |
174 | #include <netinet6/ip6.h> | |
175 | #endif /* HAVE_NETINET6_IP6_H */ | |
176 | ||
177 | #ifdef HAVE_NETINET_ICMP6_H | |
178 | #include <netinet/icmp6.h> | |
179 | #endif /* HAVE_NETINET_ICMP6_H */ | |
180 | ||
181 | #ifdef HAVE_NETINET6_ND6_H | |
182 | #include <netinet6/nd6.h> | |
183 | #endif /* HAVE_NETINET6_ND6_H */ | |
184 | ||
3b424979 | 185 | /* Some systems do not define UINT32_MAX */ |
186 | #ifndef UINT32_MAX | |
187 | #define UINT32_MAX 0xFFFFFFFFU | |
188 | #endif /* UINT32_MAX */ | |
189 | ||
718e3744 | 190 | #ifdef HAVE_LIBUTIL_H |
191 | #include <libutil.h> | |
192 | #endif /* HAVE_LIBUTIL_H */ | |
193 | ||
fb2d1502 | 194 | #ifdef HAVE_GLIBC_BACKTRACE |
195 | #include <execinfo.h> | |
196 | #endif /* HAVE_GLIBC_BACKTRACE */ | |
197 | ||
718e3744 | 198 | #ifdef BSDI_NRL |
199 | ||
200 | #ifdef HAVE_NETINET6_IN6_H | |
201 | #include <netinet6/in6.h> | |
202 | #endif /* HAVE_NETINET6_IN6_H */ | |
203 | ||
204 | #ifdef NRL | |
205 | #include <netinet6/in6.h> | |
206 | #endif /* NRL */ | |
207 | ||
208 | #define IN6_ARE_ADDR_EQUAL IN6_IS_ADDR_EQUAL | |
209 | ||
718e3744 | 210 | #endif /* BSDI_NRL */ |
211 | ||
02ff83c5 | 212 | /* |
213 | * RFC 2553-bis defines not available on some systems. | |
214 | */ | |
215 | #ifndef _CMSG_DATA_ALIGN | |
216 | #define _CMSG_DATA_ALIGN(n) (((n) + 3) & ~3) | |
217 | #endif /* _CMSG_DATA_ALIGN */ | |
218 | ||
219 | #ifndef _CMSG_HDR_ALIGN | |
220 | #define _CMSG_HDR_ALIGN(n) (((n) + 3) & ~3) | |
221 | #endif /* _CMSG_HDR_ALIGN */ | |
222 | ||
223 | #ifndef CMSG_SPACE | |
224 | #define CMSG_SPACE(l) (_CMSG_DATA_ALIGN(sizeof(struct cmsghdr)) + \ | |
225 | _CMSG_HDR_ALIGN(l)) | |
226 | #endif /* CMSG_SPACE */ | |
227 | ||
228 | ||
229 | #ifndef CMSG_LEN | |
230 | #define CMSG_LEN(l) (_CMSG_DATA_ALIGN(sizeof(struct cmsghdr)) + (l)) | |
231 | #endif /* CMSG_LEN */ | |
232 | ||
138ce75f | 233 | #if !(defined(__GNUC__) || defined(VTYSH_EXTRACT_PL)) |
51a8798e | 234 | #define __attribute__(x) |
235 | #endif /* !__GNUC__ */ | |
236 | ||
718e3744 | 237 | /* The definition of struct in_pktinfo is missing in old version of |
238 | GLIBC 2.1 (Redhat 6.1). */ | |
239 | #if defined (GNU_LINUX) && ! defined (HAVE_INPKTINFO) | |
240 | struct in_pktinfo | |
241 | { | |
242 | int ipi_ifindex; | |
243 | struct in_addr ipi_spec_dst; | |
244 | struct in_addr ipi_addr; | |
245 | }; | |
246 | #endif | |
247 | ||
9172ee0e | 248 | /* |
249 | * OSPF Fragmentation / fragmented writes | |
250 | * | |
251 | * ospfd can support writing fragmented packets, for cases where | |
252 | * kernel will not fragment IP_HDRINCL and/or multicast destined | |
253 | * packets (ie TTBOMK all kernels, BSD, SunOS, Linux). However, | |
254 | * SunOS, probably BSD too, clobber the user supplied IP ID and IP | |
255 | * flags fields, hence user-space fragmentation will not work. | |
256 | * Only Linux is known to leave IP header unmolested. | |
257 | * Further, fragmentation really should be done the kernel, which already | |
258 | * supports it, and which avoids nasty IP ID state problems. | |
259 | * | |
260 | * Fragmentation of OSPF packets can be required on networks with router | |
261 | * with many many interfaces active in one area, or on networks with links | |
262 | * with low MTUs. | |
263 | */ | |
264 | #ifdef GNU_LINUX | |
265 | #define WANT_OSPF_WRITE_FRAGMENT | |
266 | #endif | |
267 | ||
268 | /* | |
269 | * IP_HDRINCL / struct ip byte order | |
270 | * | |
271 | * Linux: network byte order | |
272 | * *BSD: network, except for length and offset. (cf Stevens) | |
273 | * SunOS: nominally as per BSD. but bug: network order on LE. | |
274 | * OpenBSD: network byte order, apart from older versions which are as per | |
275 | * *BSD | |
276 | */ | |
277 | #if defined(__NetBSD__) || defined(__FreeBSD__) \ | |
278 | || (defined(__OpenBSD__) && (OpenBSD < 200311)) \ | |
279 | || (defined(SUNOS_5) && defined(WORDS_BIGENDIAN)) | |
280 | #define HAVE_IP_HDRINCL_BSD_ORDER | |
281 | #endif | |
282 | ||
efba6ce9 | 283 | /* MAX / MIN are not commonly defined, but useful */ |
284 | #ifndef MAX | |
285 | #define MAX(a, b) ((a) > (b) ? (a) : (b)) | |
286 | #endif | |
287 | #ifndef MIN | |
288 | #define MIN(a, b) ((a) < (b) ? (a) : (b)) | |
289 | #endif | |
290 | ||
718e3744 | 291 | /* For old definition. */ |
292 | #ifndef IN6_ARE_ADDR_EQUAL | |
293 | #define IN6_ARE_ADDR_EQUAL IN6_IS_ADDR_EQUAL | |
294 | #endif /* IN6_ARE_ADDR_EQUAL */ | |
295 | ||
296 | /* Zebra message types. */ | |
297 | #define ZEBRA_INTERFACE_ADD 1 | |
298 | #define ZEBRA_INTERFACE_DELETE 2 | |
299 | #define ZEBRA_INTERFACE_ADDRESS_ADD 3 | |
300 | #define ZEBRA_INTERFACE_ADDRESS_DELETE 4 | |
301 | #define ZEBRA_INTERFACE_UP 5 | |
302 | #define ZEBRA_INTERFACE_DOWN 6 | |
303 | #define ZEBRA_IPV4_ROUTE_ADD 7 | |
304 | #define ZEBRA_IPV4_ROUTE_DELETE 8 | |
305 | #define ZEBRA_IPV6_ROUTE_ADD 9 | |
306 | #define ZEBRA_IPV6_ROUTE_DELETE 10 | |
307 | #define ZEBRA_REDISTRIBUTE_ADD 11 | |
308 | #define ZEBRA_REDISTRIBUTE_DELETE 12 | |
309 | #define ZEBRA_REDISTRIBUTE_DEFAULT_ADD 13 | |
310 | #define ZEBRA_REDISTRIBUTE_DEFAULT_DELETE 14 | |
311 | #define ZEBRA_IPV4_NEXTHOP_LOOKUP 15 | |
312 | #define ZEBRA_IPV6_NEXTHOP_LOOKUP 16 | |
313 | #define ZEBRA_IPV4_IMPORT_LOOKUP 17 | |
314 | #define ZEBRA_IPV6_IMPORT_LOOKUP 18 | |
efba6ce9 | 315 | #define ZEBRA_INTERFACE_RENAME 19 |
18a6dce6 | 316 | #define ZEBRA_ROUTER_ID_ADD 20 |
317 | #define ZEBRA_ROUTER_ID_DELETE 21 | |
318 | #define ZEBRA_ROUTER_ID_UPDATE 22 | |
319 | #define ZEBRA_MESSAGE_MAX 23 | |
718e3744 | 320 | |
321 | /* Zebra route's types. */ | |
322 | #define ZEBRA_ROUTE_SYSTEM 0 | |
323 | #define ZEBRA_ROUTE_KERNEL 1 | |
324 | #define ZEBRA_ROUTE_CONNECT 2 | |
325 | #define ZEBRA_ROUTE_STATIC 3 | |
326 | #define ZEBRA_ROUTE_RIP 4 | |
327 | #define ZEBRA_ROUTE_RIPNG 5 | |
328 | #define ZEBRA_ROUTE_OSPF 6 | |
329 | #define ZEBRA_ROUTE_OSPF6 7 | |
9e867fe6 | 330 | #define ZEBRA_ROUTE_ISIS 8 |
331 | #define ZEBRA_ROUTE_BGP 9 | |
332 | #define ZEBRA_ROUTE_MAX 10 | |
718e3744 | 333 | |
334 | /* Zebra's family types. */ | |
335 | #define ZEBRA_FAMILY_IPV4 1 | |
336 | #define ZEBRA_FAMILY_IPV6 2 | |
337 | #define ZEBRA_FAMILY_MAX 3 | |
338 | ||
339 | /* Error codes of zebra. */ | |
340 | #define ZEBRA_ERR_RTEXIST -1 | |
341 | #define ZEBRA_ERR_RTUNREACH -2 | |
342 | #define ZEBRA_ERR_EPERM -3 | |
343 | #define ZEBRA_ERR_RTNOEXIST -4 | |
344 | ||
345 | /* Zebra message flags */ | |
346 | #define ZEBRA_FLAG_INTERNAL 0x01 | |
347 | #define ZEBRA_FLAG_SELFROUTE 0x02 | |
348 | #define ZEBRA_FLAG_BLACKHOLE 0x04 | |
349 | #define ZEBRA_FLAG_IBGP 0x08 | |
350 | #define ZEBRA_FLAG_SELECTED 0x10 | |
351 | #define ZEBRA_FLAG_CHANGED 0x20 | |
352 | #define ZEBRA_FLAG_STATIC 0x40 | |
81dfcaa2 | 353 | #define ZEBRA_FLAG_REJECT 0x80 |
718e3744 | 354 | |
355 | /* Zebra nexthop flags. */ | |
356 | #define ZEBRA_NEXTHOP_IFINDEX 1 | |
357 | #define ZEBRA_NEXTHOP_IFNAME 2 | |
358 | #define ZEBRA_NEXTHOP_IPV4 3 | |
359 | #define ZEBRA_NEXTHOP_IPV4_IFINDEX 4 | |
360 | #define ZEBRA_NEXTHOP_IPV4_IFNAME 5 | |
361 | #define ZEBRA_NEXTHOP_IPV6 6 | |
362 | #define ZEBRA_NEXTHOP_IPV6_IFINDEX 7 | |
363 | #define ZEBRA_NEXTHOP_IPV6_IFNAME 8 | |
595db7f1 | 364 | #define ZEBRA_NEXTHOP_BLACKHOLE 9 |
718e3744 | 365 | |
366 | #ifndef INADDR_LOOPBACK | |
367 | #define INADDR_LOOPBACK 0x7f000001 /* Internet address 127.0.0.1. */ | |
368 | #endif | |
369 | ||
370 | /* Address family numbers from RFC1700. */ | |
371 | #define AFI_IP 1 | |
372 | #define AFI_IP6 2 | |
373 | #define AFI_MAX 3 | |
374 | ||
375 | /* Subsequent Address Family Identifier. */ | |
376 | #define SAFI_UNICAST 1 | |
377 | #define SAFI_MULTICAST 2 | |
378 | #define SAFI_UNICAST_MULTICAST 3 | |
379 | #define SAFI_MPLS_VPN 4 | |
380 | #define SAFI_MAX 5 | |
381 | ||
382 | /* Filter direction. */ | |
383 | #define FILTER_IN 0 | |
384 | #define FILTER_OUT 1 | |
385 | #define FILTER_MAX 2 | |
386 | ||
387 | /* Default Administrative Distance of each protocol. */ | |
388 | #define ZEBRA_KERNEL_DISTANCE_DEFAULT 0 | |
389 | #define ZEBRA_CONNECT_DISTANCE_DEFAULT 0 | |
390 | #define ZEBRA_STATIC_DISTANCE_DEFAULT 1 | |
391 | #define ZEBRA_RIP_DISTANCE_DEFAULT 120 | |
392 | #define ZEBRA_RIPNG_DISTANCE_DEFAULT 120 | |
393 | #define ZEBRA_OSPF_DISTANCE_DEFAULT 110 | |
394 | #define ZEBRA_OSPF6_DISTANCE_DEFAULT 110 | |
9e867fe6 | 395 | #define ZEBRA_ISIS_DISTANCE_DEFAULT 115 |
718e3744 | 396 | #define ZEBRA_IBGP_DISTANCE_DEFAULT 200 |
397 | #define ZEBRA_EBGP_DISTANCE_DEFAULT 20 | |
398 | ||
399 | /* Flag manipulation macros. */ | |
400 | #define CHECK_FLAG(V,F) ((V) & (F)) | |
401 | #define SET_FLAG(V,F) (V) = (V) | (F) | |
402 | #define UNSET_FLAG(V,F) (V) = (V) & ~(F) | |
403 | ||
404 | /* AFI and SAFI type. */ | |
405 | typedef u_int16_t afi_t; | |
5228ad27 | 406 | typedef u_int8_t safi_t; |
718e3744 | 407 | |
408 | /* Zebra types. */ | |
409 | typedef u_int16_t zebra_size_t; | |
410 | typedef u_int8_t zebra_command_t; | |
411 | ||
f0438521 | 412 | /* FIFO -- first in first out structure and macros. */ |
413 | struct fifo | |
414 | { | |
415 | struct fifo *next; | |
416 | struct fifo *prev; | |
417 | }; | |
418 | ||
419 | #define FIFO_INIT(F) \ | |
420 | do { \ | |
421 | struct fifo *Xfifo = (struct fifo *)(F); \ | |
422 | Xfifo->next = Xfifo->prev = Xfifo; \ | |
423 | } while (0) | |
424 | ||
425 | #define FIFO_ADD(F,N) \ | |
426 | do { \ | |
427 | struct fifo *Xfifo = (struct fifo *)(F); \ | |
428 | struct fifo *Xnode = (struct fifo *)(N); \ | |
429 | Xnode->next = Xfifo; \ | |
430 | Xnode->prev = Xfifo->prev; \ | |
431 | Xfifo->prev = Xfifo->prev->next = Xnode; \ | |
432 | } while (0) | |
433 | ||
434 | #define FIFO_DEL(N) \ | |
435 | do { \ | |
436 | struct fifo *Xnode = (struct fifo *)(N); \ | |
437 | Xnode->prev->next = Xnode->next; \ | |
438 | Xnode->next->prev = Xnode->prev; \ | |
439 | } while (0) | |
440 | ||
441 | #define FIFO_HEAD(F) \ | |
442 | ((((struct fifo *)(F))->next == (struct fifo *)(F)) \ | |
443 | ? NULL : (F)->next) | |
444 | ||
445 | #define FIFO_EMPTY(F) \ | |
446 | (((struct fifo *)(F))->next == (struct fifo *)(F)) | |
447 | ||
448 | #define FIFO_TOP(F) \ | |
449 | (FIFO_EMPTY(F) ? NULL : ((struct fifo *)(F))->next) | |
450 | ||
718e3744 | 451 | #endif /* _ZEBRA_H */ |