1
/* Zebra common header.
2
Copyright (C) 1997, 1998, 1999, 2000, 2001, 2002 Kunihiro Ishiguro
4
This file is part of GNU Zebra.
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
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.
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
26
#endif /* HAVE_CONFIG_H */
30
#endif /* GNU_LINUX */
34
#define __EXTENSIONS__
35
typedef unsigned int u_int32_t;
36
typedef unsigned short u_int16_t;
37
typedef unsigned char u_int8_t;
40
#ifndef HAVE_SOCKLEN_T
41
typedef int socklen_t;
42
#endif /* HAVE_SOCKLEN_T */
56
#endif /* HAVE_STROPTS_H */
57
#include <sys/fcntl.h>
58
#ifdef HAVE_SYS_SELECT_H
59
#include <sys/select.h>
60
#endif /* HAVE_SYS_SELECT_H */
63
#include <sys/types.h>
64
#include <sys/param.h>
65
#ifdef HAVE_SYS_SYSCTL_H
66
#include <sys/sysctl.h>
67
#endif /* HAVE_SYS_SYSCTL_H */
68
#include <sys/ioctl.h>
69
#ifdef HAVE_SYS_CONF_H
71
#endif /* HAVE_SYS_CONF_H */
72
#ifdef HAVE_SYS_KSYM_H
74
#endif /* HAVE_SYS_KSYM_H */
78
#include <sys/utsname.h>
80
#include <sys/resource.h>
81
#endif /* HAVE_RUSAGE */
84
#endif /* HAVE_LIMITS_H */
86
/* machine dependent includes */
91
/* machine dependent includes */
92
#ifdef HAVE_LINUX_VERSION_H
93
#include <linux/version.h>
94
#endif /* HAVE_LINUX_VERSION_H */
96
#ifdef HAVE_ASM_TYPES_H
97
#include <asm/types.h>
98
#endif /* HAVE_ASM_TYPES_H */
100
/* misc include group */
102
#if !(defined(__STDC_VERSION__) && __STDC_VERSION__ >= 199901L)
103
/* Not C99; do we need to define va_copy? */
106
#define va_copy(DST,SRC) __va_copy(DST,SRC)
108
/* Now we are desperate; this should work on many typical platforms.
109
But this is slightly dangerous, because the standard does not require
110
va_copy to be a macro. */
111
#define va_copy(DST,SRC) memcpy(&(DST), &(SRC), sizeof(va_list))
112
#warning "Not C99 and no va_copy macro available, falling back to memcpy"
113
#endif /* __va_copy */
114
#endif /* !va_copy */
119
#include <sys/capability.h>
120
#include <sys/prctl.h>
121
#endif /* HAVE_LCAPS */
123
/* network include group */
125
#include <sys/socket.h>
127
#ifdef HAVE_SYS_SOCKIO_H
128
#include <sys/sockio.h>
129
#endif /* HAVE_SYS_SOCKIO_H */
131
#ifdef HAVE_NETINET_IN_H
132
#include <netinet/in.h>
133
#endif /* HAVE_NETINET_IN_H */
134
#include <netinet/in_systm.h>
135
#include <netinet/ip.h>
136
#include <netinet/tcp.h>
138
#ifdef HAVE_NET_NETOPT_H
139
#include <net/netopt.h>
140
#endif /* HAVE_NET_NETOPT_H */
144
#ifdef HAVE_NET_IF_DL_H
145
#include <net/if_dl.h>
146
#endif /* HAVE_NET_IF_DL_H */
148
#ifdef HAVE_NET_IF_VAR_H
149
#include <net/if_var.h>
150
#endif /* HAVE_NET_IF_VAR_H */
152
#ifdef HAVE_NET_ROUTE_H
153
#include <net/route.h>
154
#endif /* HAVE_NET_ROUTE_H */
157
#include <linux/netlink.h>
158
#include <linux/rtnetlink.h>
160
#define RT_TABLE_MAIN 0
161
#endif /* HAVE_NETLINK */
165
#endif /* HAVE_NETDB_H */
167
#include <arpa/inet.h>
169
#ifdef HAVE_INET_ND_H
171
#endif /* HAVE_INET_ND_H */
173
#ifdef HAVE_NETINET_IN_VAR_H
174
#include <netinet/in_var.h>
175
#endif /* HAVE_NETINET_IN_VAR_H */
177
#ifdef HAVE_NETINET6_IN6_VAR_H
178
#include <netinet6/in6_var.h>
179
#endif /* HAVE_NETINET6_IN6_VAR_H */
181
#ifdef HAVE_NETINET_IN6_VAR_H
182
#include <netinet/in6_var.h>
183
#endif /* HAVE_NETINET_IN6_VAR_H */
185
#ifdef HAVE_NETINET6_IN_H
186
#include <netinet6/in.h>
187
#endif /* HAVE_NETINET6_IN_H */
190
#ifdef HAVE_NETINET6_IP6_H
191
#include <netinet6/ip6.h>
192
#endif /* HAVE_NETINET6_IP6_H */
194
#ifdef HAVE_NETINET_ICMP6_H
195
#include <netinet/icmp6.h>
196
#endif /* HAVE_NETINET_ICMP6_H */
198
#ifdef HAVE_NETINET6_ND6_H
199
#include <netinet6/nd6.h>
200
#endif /* HAVE_NETINET6_ND6_H */
202
/* Some systems do not define UINT32_MAX */
204
#define UINT32_MAX 0xFFFFFFFFU
205
#endif /* UINT32_MAX */
207
#ifdef HAVE_LIBUTIL_H
209
#endif /* HAVE_LIBUTIL_H */
211
#ifdef HAVE_GLIBC_BACKTRACE
212
#include <execinfo.h>
213
#endif /* HAVE_GLIBC_BACKTRACE */
217
#ifdef HAVE_NETINET6_IN6_H
218
#include <netinet6/in6.h>
219
#endif /* HAVE_NETINET6_IN6_H */
222
#include <netinet6/in6.h>
225
#define IN6_ARE_ADDR_EQUAL IN6_IS_ADDR_EQUAL
227
#endif /* BSDI_NRL */
229
/* Local includes: */
230
#if !(defined(__GNUC__) || defined(VTYSH_EXTRACT_PL))
231
#define __attribute__(x)
232
#endif /* !__GNUC__ || VTYSH_EXTRACT_PL */
238
#ifdef HAVE_BROKEN_CMSG_FIRSTHDR
239
/* This bug is present in Solaris 8 and pre-patch Solaris 9 <sys/socket.h>;
240
please refer to http://bugzilla.quagga.net/show_bug.cgi?id=142 */
242
/* Check that msg_controllen is large enough. */
243
#define ZCMSG_FIRSTHDR(mhdr) \
244
(((size_t)((mhdr)->msg_controllen) >= sizeof(struct cmsghdr)) ? \
245
CMSG_FIRSTHDR(mhdr) : (struct cmsghdr *)NULL)
247
#warning "CMSG_FIRSTHDR is broken on this platform, using a workaround"
249
#else /* HAVE_BROKEN_CMSG_FIRSTHDR */
250
#define ZCMSG_FIRSTHDR(M) CMSG_FIRSTHDR(M)
251
#endif /* HAVE_BROKEN_CMSG_FIRSTHDR */
256
* RFC 3542 defines several macros for using struct cmsghdr.
257
* Here, we define those that are not present
261
* Internal defines, for use only in this file.
262
* These are likely wrong on other than ILP32 machines, so warn.
264
#ifndef _CMSG_DATA_ALIGN
265
#define _CMSG_DATA_ALIGN(n) (((n) + 3) & ~3)
266
#endif /* _CMSG_DATA_ALIGN */
268
#ifndef _CMSG_HDR_ALIGN
269
#define _CMSG_HDR_ALIGN(n) (((n) + 3) & ~3)
270
#endif /* _CMSG_HDR_ALIGN */
273
* CMSG_SPACE and CMSG_LEN are required in RFC3542, but were new in that
277
#define CMSG_SPACE(l) (_CMSG_DATA_ALIGN(sizeof(struct cmsghdr)) + \
279
#warning "assuming 4-byte alignment for CMSG_SPACE"
280
#endif /* CMSG_SPACE */
284
#define CMSG_LEN(l) (_CMSG_DATA_ALIGN(sizeof(struct cmsghdr)) + (l))
285
#warning "assuming 4-byte alignment for CMSG_LEN"
286
#endif /* CMSG_LEN */
289
/* The definition of struct in_pktinfo is missing in old version of
290
GLIBC 2.1 (Redhat 6.1). */
291
#if defined (GNU_LINUX) && ! defined (HAVE_INPKTINFO)
295
struct in_addr ipi_spec_dst;
296
struct in_addr ipi_addr;
301
* OSPF Fragmentation / fragmented writes
303
* ospfd can support writing fragmented packets, for cases where
304
* kernel will not fragment IP_HDRINCL and/or multicast destined
305
* packets (ie TTBOMK all kernels, BSD, SunOS, Linux). However,
306
* SunOS, probably BSD too, clobber the user supplied IP ID and IP
307
* flags fields, hence user-space fragmentation will not work.
308
* Only Linux is known to leave IP header unmolested.
309
* Further, fragmentation really should be done the kernel, which already
310
* supports it, and which avoids nasty IP ID state problems.
312
* Fragmentation of OSPF packets can be required on networks with router
313
* with many many interfaces active in one area, or on networks with links
317
#define WANT_OSPF_WRITE_FRAGMENT
321
* IP_HDRINCL / struct ip byte order
323
* Linux: network byte order
324
* *BSD: network, except for length and offset. (cf Stevens)
325
* SunOS: nominally as per BSD. but bug: network order on LE.
326
* OpenBSD: network byte order, apart from older versions which are as per
329
#if defined(__NetBSD__) || defined(__FreeBSD__) \
330
|| (defined(__OpenBSD__) && (OpenBSD < 200311)) \
331
|| (defined(SUNOS_5) && defined(WORDS_BIGENDIAN))
332
#define HAVE_IP_HDRINCL_BSD_ORDER
335
/* MAX / MIN are not commonly defined, but useful */
337
#define MAX(a, b) ((a) > (b) ? (a) : (b))
340
#define MIN(a, b) ((a) < (b) ? (a) : (b))
343
/* For old definition. */
344
#ifndef IN6_ARE_ADDR_EQUAL
345
#define IN6_ARE_ADDR_EQUAL IN6_IS_ADDR_EQUAL
346
#endif /* IN6_ARE_ADDR_EQUAL */
348
/* Zebra message types. */
349
#define ZEBRA_INTERFACE_ADD 1
350
#define ZEBRA_INTERFACE_DELETE 2
351
#define ZEBRA_INTERFACE_ADDRESS_ADD 3
352
#define ZEBRA_INTERFACE_ADDRESS_DELETE 4
353
#define ZEBRA_INTERFACE_UP 5
354
#define ZEBRA_INTERFACE_DOWN 6
355
#define ZEBRA_IPV4_ROUTE_ADD 7
356
#define ZEBRA_IPV4_ROUTE_DELETE 8
357
#define ZEBRA_IPV6_ROUTE_ADD 9
358
#define ZEBRA_IPV6_ROUTE_DELETE 10
359
#define ZEBRA_REDISTRIBUTE_ADD 11
360
#define ZEBRA_REDISTRIBUTE_DELETE 12
361
#define ZEBRA_REDISTRIBUTE_DEFAULT_ADD 13
362
#define ZEBRA_REDISTRIBUTE_DEFAULT_DELETE 14
363
#define ZEBRA_IPV4_NEXTHOP_LOOKUP 15
364
#define ZEBRA_IPV6_NEXTHOP_LOOKUP 16
365
#define ZEBRA_IPV4_IMPORT_LOOKUP 17
366
#define ZEBRA_IPV6_IMPORT_LOOKUP 18
367
#define ZEBRA_INTERFACE_RENAME 19
368
#define ZEBRA_ROUTER_ID_ADD 20
369
#define ZEBRA_ROUTER_ID_DELETE 21
370
#define ZEBRA_ROUTER_ID_UPDATE 22
371
#define ZEBRA_MESSAGE_MAX 23
373
/* Zebra route's types. */
374
#define ZEBRA_ROUTE_SYSTEM 0
375
#define ZEBRA_ROUTE_KERNEL 1
376
#define ZEBRA_ROUTE_CONNECT 2
377
#define ZEBRA_ROUTE_STATIC 3
378
#define ZEBRA_ROUTE_RIP 4
379
#define ZEBRA_ROUTE_RIPNG 5
380
#define ZEBRA_ROUTE_OSPF 6
381
#define ZEBRA_ROUTE_OSPF6 7
382
#define ZEBRA_ROUTE_ISIS 8
383
#define ZEBRA_ROUTE_BGP 9
384
#define ZEBRA_ROUTE_HSLS 10
385
#define ZEBRA_ROUTE_MAX 11
387
/* Zebra's family types. */
388
#define ZEBRA_FAMILY_IPV4 1
389
#define ZEBRA_FAMILY_IPV6 2
390
#define ZEBRA_FAMILY_MAX 3
392
/* Error codes of zebra. */
393
#define ZEBRA_ERR_RTEXIST -1
394
#define ZEBRA_ERR_RTUNREACH -2
395
#define ZEBRA_ERR_EPERM -3
396
#define ZEBRA_ERR_RTNOEXIST -4
398
/* Zebra message flags */
399
#define ZEBRA_FLAG_INTERNAL 0x01
400
#define ZEBRA_FLAG_SELFROUTE 0x02
401
#define ZEBRA_FLAG_BLACKHOLE 0x04
402
#define ZEBRA_FLAG_IBGP 0x08
403
#define ZEBRA_FLAG_SELECTED 0x10
404
#define ZEBRA_FLAG_CHANGED 0x20
405
#define ZEBRA_FLAG_STATIC 0x40
406
#define ZEBRA_FLAG_REJECT 0x80
408
/* Zebra nexthop flags. */
409
#define ZEBRA_NEXTHOP_IFINDEX 1
410
#define ZEBRA_NEXTHOP_IFNAME 2
411
#define ZEBRA_NEXTHOP_IPV4 3
412
#define ZEBRA_NEXTHOP_IPV4_IFINDEX 4
413
#define ZEBRA_NEXTHOP_IPV4_IFNAME 5
414
#define ZEBRA_NEXTHOP_IPV6 6
415
#define ZEBRA_NEXTHOP_IPV6_IFINDEX 7
416
#define ZEBRA_NEXTHOP_IPV6_IFNAME 8
417
#define ZEBRA_NEXTHOP_BLACKHOLE 9
419
#ifndef INADDR_LOOPBACK
420
#define INADDR_LOOPBACK 0x7f000001 /* Internet address 127.0.0.1. */
423
/* Address family numbers from RFC1700. */
428
/* Subsequent Address Family Identifier. */
429
#define SAFI_UNICAST 1
430
#define SAFI_MULTICAST 2
431
#define SAFI_UNICAST_MULTICAST 3
432
#define SAFI_MPLS_VPN 4
435
/* Filter direction. */
440
/* Default Administrative Distance of each protocol. */
441
#define ZEBRA_KERNEL_DISTANCE_DEFAULT 0
442
#define ZEBRA_CONNECT_DISTANCE_DEFAULT 0
443
#define ZEBRA_STATIC_DISTANCE_DEFAULT 1
444
#define ZEBRA_RIP_DISTANCE_DEFAULT 120
445
#define ZEBRA_RIPNG_DISTANCE_DEFAULT 120
446
#define ZEBRA_OSPF_DISTANCE_DEFAULT 110
447
#define ZEBRA_OSPF6_DISTANCE_DEFAULT 110
448
#define ZEBRA_ISIS_DISTANCE_DEFAULT 115
449
#define ZEBRA_IBGP_DISTANCE_DEFAULT 200
450
#define ZEBRA_EBGP_DISTANCE_DEFAULT 20
452
/* Flag manipulation macros. */
453
#define CHECK_FLAG(V,F) ((V) & (F))
454
#define SET_FLAG(V,F) (V) |= (F)
455
#define UNSET_FLAG(V,F) (V) &= ~(F)
457
/* AFI and SAFI type. */
458
typedef u_int16_t afi_t;
459
typedef u_int8_t safi_t;
462
typedef u_int16_t zebra_size_t;
463
typedef u_int8_t zebra_command_t;
465
/* FIFO -- first in first out structure and macros. */
472
#define FIFO_INIT(F) \
474
struct fifo *Xfifo = (struct fifo *)(F); \
475
Xfifo->next = Xfifo->prev = Xfifo; \
478
#define FIFO_ADD(F,N) \
480
struct fifo *Xfifo = (struct fifo *)(F); \
481
struct fifo *Xnode = (struct fifo *)(N); \
482
Xnode->next = Xfifo; \
483
Xnode->prev = Xfifo->prev; \
484
Xfifo->prev = Xfifo->prev->next = Xnode; \
487
#define FIFO_DEL(N) \
489
struct fifo *Xnode = (struct fifo *)(N); \
490
Xnode->prev->next = Xnode->next; \
491
Xnode->next->prev = Xnode->prev; \
494
#define FIFO_HEAD(F) \
495
((((struct fifo *)(F))->next == (struct fifo *)(F)) \
498
#define FIFO_EMPTY(F) \
499
(((struct fifo *)(F))->next == (struct fifo *)(F))
501
#define FIFO_TOP(F) \
502
(FIFO_EMPTY(F) ? NULL : ((struct fifo *)(F))->next)
504
#endif /* _ZEBRA_H */
added
removed
lib/zebra.h
