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 #define __EXTENSIONS__
31 typedef unsigned int u_int32_t
;
32 typedef unsigned short u_int16_t
;
33 typedef unsigned char u_int8_t
;
36 #ifndef HAVE_SOCKLEN_T
37 typedef int socklen_t
;
38 #endif /* HAVE_SOCKLEN_T */
53 #endif /* HAVE_STROPTS_H */
54 #ifdef HAVE_SYS_SELECT_H
55 #include <sys/select.h>
56 #endif /* HAVE_SYS_SELECT_H */
58 #include <sys/types.h>
59 #include <sys/param.h>
60 #ifdef HAVE_SYS_SYSCTL_H
62 #include <linux/types.h>
64 #include <sys/sysctl.h>
65 #endif /* HAVE_SYS_SYSCTL_H */
66 #include <sys/ioctl.h>
67 #ifdef HAVE_SYS_CONF_H
69 #endif /* HAVE_SYS_CONF_H */
70 #ifdef HAVE_SYS_KSYM_H
72 #endif /* HAVE_SYS_KSYM_H */
74 #ifdef TIME_WITH_SYS_TIME
75 # include <sys/time.h>
78 # ifdef HAVE_SYS_TIME_H
79 # include <sys/time.h>
83 #endif /* TIME_WITH_SYS_TIME */
85 #include <sys/utsname.h>
87 #include <sys/resource.h>
88 #endif /* HAVE_RUSAGE */
91 #endif /* HAVE_LIMITS_H */
92 #ifdef HAVE_INTTYPES_H
94 #endif /* HAVE_INTTYPES_H */
96 /* machine dependent includes */
101 /* machine dependent includes */
102 #ifdef HAVE_LINUX_VERSION_H
103 #include <linux/version.h>
104 #endif /* HAVE_LINUX_VERSION_H */
106 #ifdef HAVE_ASM_TYPES_H
107 #include <asm/types.h>
108 #endif /* HAVE_ASM_TYPES_H */
110 /* misc include group */
112 #if !(defined(__STDC_VERSION__) && __STDC_VERSION__ >= 199901L)
113 /* Not C99; do we need to define va_copy? */
116 #define va_copy(DST,SRC) __va_copy(DST,SRC)
118 /* Now we are desperate; this should work on many typical platforms.
119 But this is slightly dangerous, because the standard does not require
120 va_copy to be a macro. */
121 #define va_copy(DST,SRC) memcpy(&(DST), &(SRC), sizeof(va_list))
122 #warning "Not C99 and no va_copy macro available, falling back to memcpy"
123 #endif /* __va_copy */
124 #endif /* !va_copy */
129 #include <sys/capability.h>
130 #include <sys/prctl.h>
131 #endif /* HAVE_LCAPS */
133 #ifdef HAVE_SOLARIS_CAPABILITIES
135 #endif /* HAVE_SOLARIS_CAPABILITIES */
137 /* network include group */
139 #include <sys/socket.h>
141 #ifdef HAVE_SYS_SOCKIO_H
142 #include <sys/sockio.h>
143 #endif /* HAVE_SYS_SOCKIO_H */
146 #define __APPLE_USE_RFC_3542
149 #ifdef HAVE_NETINET_IN_H
150 #include <netinet/in.h>
151 #endif /* HAVE_NETINET_IN_H */
152 #include <netinet/in_systm.h>
153 #include <netinet/ip.h>
154 #include <netinet/tcp.h>
156 #ifdef HAVE_NET_NETOPT_H
157 #include <net/netopt.h>
158 #endif /* HAVE_NET_NETOPT_H */
162 #ifdef HAVE_NET_IF_DL_H
163 #include <net/if_dl.h>
164 #endif /* HAVE_NET_IF_DL_H */
166 #ifdef HAVE_NET_IF_VAR_H
167 #include <net/if_var.h>
168 #endif /* HAVE_NET_IF_VAR_H */
170 #ifdef HAVE_NET_ROUTE_H
171 #include <net/route.h>
172 #endif /* HAVE_NET_ROUTE_H */
175 #include <linux/netlink.h>
176 #include <linux/rtnetlink.h>
177 #include <linux/filter.h>
179 #define RT_TABLE_MAIN 0
180 #endif /* HAVE_NETLINK */
184 #endif /* HAVE_NETDB_H */
186 #include <arpa/inet.h>
188 #ifdef HAVE_INET_ND_H
190 #endif /* HAVE_INET_ND_H */
192 #ifdef HAVE_NETINET_IN_VAR_H
193 #include <netinet/in_var.h>
194 #endif /* HAVE_NETINET_IN_VAR_H */
196 #ifdef HAVE_NETINET6_IN6_VAR_H
197 #include <netinet6/in6_var.h>
198 #endif /* HAVE_NETINET6_IN6_VAR_H */
200 #ifdef HAVE_NETINET_IN6_VAR_H
201 #include <netinet/in6_var.h>
202 #endif /* HAVE_NETINET_IN6_VAR_H */
204 #ifdef HAVE_NETINET6_IN_H
205 #include <netinet6/in.h>
206 #endif /* HAVE_NETINET6_IN_H */
209 #ifdef HAVE_NETINET6_IP6_H
210 #include <netinet6/ip6.h>
211 #endif /* HAVE_NETINET6_IP6_H */
213 #ifdef HAVE_NETINET_ICMP6_H
214 #include <netinet/icmp6.h>
215 #endif /* HAVE_NETINET_ICMP6_H */
217 #ifdef HAVE_NETINET6_ND6_H
218 #include <netinet6/nd6.h>
219 #endif /* HAVE_NETINET6_ND6_H */
221 /* Some systems do not define UINT32_MAX, etc.. from inttypes.h
222 * e.g. this makes life easier for FBSD 4.11 users.
225 #define INT8_MAX (127)
228 #define INT16_MAX (32767)
231 #define INT32_MAX (2147483647)
234 #define UINT8_MAX (255U)
237 #define UINT16_MAX (65535U)
240 #define UINT32_MAX (4294967295U)
243 #ifdef HAVE_GLIBC_BACKTRACE
244 #include <execinfo.h>
245 #endif /* HAVE_GLIBC_BACKTRACE */
249 #ifdef HAVE_NETINET6_IN6_H
250 #include <netinet6/in6.h>
251 #endif /* HAVE_NETINET6_IN6_H */
254 #include <netinet6/in6.h>
257 #define IN6_ARE_ADDR_EQUAL IN6_IS_ADDR_EQUAL
259 #endif /* BSDI_NRL */
261 /* Local includes: */
262 #if !(defined(__GNUC__) || defined(VTYSH_EXTRACT_PL))
263 #define __attribute__(x)
264 #endif /* !__GNUC__ || VTYSH_EXTRACT_PL */
270 #ifdef HAVE_BROKEN_CMSG_FIRSTHDR
271 /* This bug is present in Solaris 8 and pre-patch Solaris 9 <sys/socket.h>;
272 please refer to http://bugzilla.quagga.net/show_bug.cgi?id=142 */
274 /* Check that msg_controllen is large enough. */
275 #define ZCMSG_FIRSTHDR(mhdr) \
276 (((size_t)((mhdr)->msg_controllen) >= sizeof(struct cmsghdr)) ? \
277 CMSG_FIRSTHDR(mhdr) : (struct cmsghdr *)NULL)
279 #warning "CMSG_FIRSTHDR is broken on this platform, using a workaround"
281 #else /* HAVE_BROKEN_CMSG_FIRSTHDR */
282 #define ZCMSG_FIRSTHDR(M) CMSG_FIRSTHDR(M)
283 #endif /* HAVE_BROKEN_CMSG_FIRSTHDR */
288 * RFC 3542 defines several macros for using struct cmsghdr.
289 * Here, we define those that are not present
293 * Internal defines, for use only in this file.
294 * These are likely wrong on other than ILP32 machines, so warn.
296 #ifndef _CMSG_DATA_ALIGN
297 #define _CMSG_DATA_ALIGN(n) (((n) + 3) & ~3)
298 #endif /* _CMSG_DATA_ALIGN */
300 #ifndef _CMSG_HDR_ALIGN
301 #define _CMSG_HDR_ALIGN(n) (((n) + 3) & ~3)
302 #endif /* _CMSG_HDR_ALIGN */
305 * CMSG_SPACE and CMSG_LEN are required in RFC3542, but were new in that
309 #define CMSG_SPACE(l) (_CMSG_DATA_ALIGN(sizeof(struct cmsghdr)) + \
311 #warning "assuming 4-byte alignment for CMSG_SPACE"
312 #endif /* CMSG_SPACE */
316 #define CMSG_LEN(l) (_CMSG_DATA_ALIGN(sizeof(struct cmsghdr)) + (l))
317 #warning "assuming 4-byte alignment for CMSG_LEN"
318 #endif /* CMSG_LEN */
321 /* The definition of struct in_pktinfo is missing in old version of
322 GLIBC 2.1 (Redhat 6.1). */
323 #if defined (GNU_LINUX) && ! defined (HAVE_STRUCT_IN_PKTINFO)
327 struct in_addr ipi_spec_dst
;
328 struct in_addr ipi_addr
;
333 * OSPF Fragmentation / fragmented writes
335 * ospfd can support writing fragmented packets, for cases where
336 * kernel will not fragment IP_HDRINCL and/or multicast destined
337 * packets (ie TTBOMK all kernels, BSD, SunOS, Linux). However,
338 * SunOS, probably BSD too, clobber the user supplied IP ID and IP
339 * flags fields, hence user-space fragmentation will not work.
340 * Only Linux is known to leave IP header unmolested.
341 * Further, fragmentation really should be done the kernel, which already
342 * supports it, and which avoids nasty IP ID state problems.
344 * Fragmentation of OSPF packets can be required on networks with router
345 * with many many interfaces active in one area, or on networks with links
349 #define WANT_OSPF_WRITE_FRAGMENT
353 * IP_HDRINCL / struct ip byte order
355 * Linux: network byte order
356 * *BSD: network, except for length and offset. (cf Stevens)
357 * SunOS: nominally as per BSD. but bug: network order on LE.
358 * OpenBSD: network byte order, apart from older versions which are as per
361 #if defined(__NetBSD__) || defined(__FreeBSD__) \
362 || (defined(__OpenBSD__) && (OpenBSD < 200311)) \
363 || (defined(__APPLE__)) \
364 || (defined(SUNOS_5) && defined(WORDS_BIGENDIAN))
365 #define HAVE_IP_HDRINCL_BSD_ORDER
368 /* Define BYTE_ORDER, if not defined. Useful for compiler conditional
369 * code, rather than preprocessor conditional.
370 * Not all the world has this BSD define.
373 #define BIG_ENDIAN 4321 /* least-significant byte first (vax, pc) */
374 #define LITTLE_ENDIAN 1234 /* most-significant byte first (IBM, net) */
375 #define PDP_ENDIAN 3412 /* LSB first in word, MSW first in long (pdp) */
377 #if defined(WORDS_BIGENDIAN)
378 #define BYTE_ORDER BIG_ENDIAN
379 #else /* !WORDS_BIGENDIAN */
380 #define BYTE_ORDER LITTLE_ENDIAN
381 #endif /* WORDS_BIGENDIAN */
383 #endif /* ndef BYTE_ORDER */
385 /* MAX / MIN are not commonly defined, but useful */
387 #define MAX(a, b) ((a) > (b) ? (a) : (b))
390 #define MIN(a, b) ((a) < (b) ? (a) : (b))
393 #define ZEBRA_NUM_OF(x) (sizeof (x) / sizeof (x[0]))
395 /* For old definition. */
396 #ifndef IN6_ARE_ADDR_EQUAL
397 #define IN6_ARE_ADDR_EQUAL IN6_IS_ADDR_EQUAL
398 #endif /* IN6_ARE_ADDR_EQUAL */
400 /* default zebra TCP port for zclient */
401 #define ZEBRA_PORT 2600
403 /* Zebra message types. */
404 #define ZEBRA_INTERFACE_ADD 1
405 #define ZEBRA_INTERFACE_DELETE 2
406 #define ZEBRA_INTERFACE_ADDRESS_ADD 3
407 #define ZEBRA_INTERFACE_ADDRESS_DELETE 4
408 #define ZEBRA_INTERFACE_UP 5
409 #define ZEBRA_INTERFACE_DOWN 6
410 #define ZEBRA_IPV4_ROUTE_ADD 7
411 #define ZEBRA_IPV4_ROUTE_DELETE 8
412 #define ZEBRA_IPV6_ROUTE_ADD 9
413 #define ZEBRA_IPV6_ROUTE_DELETE 10
414 #define ZEBRA_REDISTRIBUTE_ADD 11
415 #define ZEBRA_REDISTRIBUTE_DELETE 12
416 #define ZEBRA_REDISTRIBUTE_DEFAULT_ADD 13
417 #define ZEBRA_REDISTRIBUTE_DEFAULT_DELETE 14
418 #define ZEBRA_IPV4_NEXTHOP_LOOKUP 15
419 #define ZEBRA_IPV6_NEXTHOP_LOOKUP 16
420 #define ZEBRA_IPV4_IMPORT_LOOKUP 17
421 #define ZEBRA_IPV6_IMPORT_LOOKUP 18
422 #define ZEBRA_INTERFACE_RENAME 19
423 #define ZEBRA_ROUTER_ID_ADD 20
424 #define ZEBRA_ROUTER_ID_DELETE 21
425 #define ZEBRA_ROUTER_ID_UPDATE 22
426 #define ZEBRA_HELLO 23
427 #define ZEBRA_NEXTHOP_REGISTER 24
428 #define ZEBRA_NEXTHOP_UNREGISTER 25
429 #define ZEBRA_NEXTHOP_UPDATE 26
430 #define ZEBRA_INTERFACE_NBR_ADDRESS_ADD 27
431 #define ZEBRA_INTERFACE_NBR_ADDRESS_DELETE 28
432 #define ZEBRA_INTERFACE_BFD_DEST_UPDATE 29
433 #define ZEBRA_IMPORT_ROUTE_REGISTER 30
434 #define ZEBRA_IMPORT_ROUTE_UNREGISTER 31
435 #define ZEBRA_IMPORT_CHECK_UPDATE 32
436 #define ZEBRA_IPV4_ROUTE_IPV6_NEXTHOP_ADD 33
437 #define ZEBRA_BFD_DEST_REGISTER 34
438 #define ZEBRA_BFD_DEST_DEREGISTER 35
439 #define ZEBRA_BFD_DEST_UPDATE 36
440 #define ZEBRA_BFD_DEST_REPLAY 37
441 #define ZEBRA_REDISTRIBUTE_IPV4_ADD 38
442 #define ZEBRA_REDISTRIBUTE_IPV4_DEL 39
443 #define ZEBRA_REDISTRIBUTE_IPV6_ADD 40
444 #define ZEBRA_REDISTRIBUTE_IPV6_DEL 41
445 #define ZEBRA_VRF_UNREGISTER 42
446 #define ZEBRA_VRF_ADD 43
447 #define ZEBRA_VRF_DELETE 44
448 #define ZEBRA_INTERFACE_VRF_UPDATE 45
449 #define ZEBRA_MESSAGE_MAX 46
451 /* Marker value used in new Zserv, in the byte location corresponding
452 * the command value in the old zserv header. To allow old and new
453 * Zserv headers to be distinguished from each other.
455 #define ZEBRA_HEADER_MARKER 255
457 /* Zebra route's types are defined in route_types.h */
458 #include "route_types.h"
460 /* Note: whenever a new route-type or zserv-command is added the
461 * corresponding {command,route}_types[] table in lib/log.c MUST be
464 /* Map a route type to a string. For example, ZEBRA_ROUTE_RIPNG -> "ripng". */
465 extern const char *zebra_route_string(unsigned int route_type
);
466 /* Map a route type to a char. For example, ZEBRA_ROUTE_RIPNG -> 'R'. */
467 extern char zebra_route_char(unsigned int route_type
);
468 /* Map a zserv command type to the same string,
469 * e.g. ZEBRA_INTERFACE_ADD -> "ZEBRA_INTERFACE_ADD" */
470 /* Map a protocol name to its number. e.g. ZEBRA_ROUTE_BGP->9*/
471 extern int proto_name2num(const char *s
);
472 /* Map redistribute X argument to protocol number.
473 * unlike proto_name2num, this accepts shorthands and takes
474 * an AFI value to restrict input */
475 extern int proto_redistnum(int afi
, const char *s
);
477 extern const char *zserv_command_string (unsigned int command
);
479 /* Zebra's family types. */
480 #define ZEBRA_FAMILY_IPV4 1
481 #define ZEBRA_FAMILY_IPV6 2
482 #define ZEBRA_FAMILY_MAX 3
484 /* Error codes of zebra. */
485 #define ZEBRA_ERR_NOERROR 0
486 #define ZEBRA_ERR_RTEXIST -1
487 #define ZEBRA_ERR_RTUNREACH -2
488 #define ZEBRA_ERR_EPERM -3
489 #define ZEBRA_ERR_RTNOEXIST -4
490 #define ZEBRA_ERR_KERNEL -5
492 /* Zebra message flags */
493 #define ZEBRA_FLAG_INTERNAL 0x01
494 #define ZEBRA_FLAG_SELFROUTE 0x02
495 #define ZEBRA_FLAG_BLACKHOLE 0x04
496 #define ZEBRA_FLAG_IBGP 0x08
497 #define ZEBRA_FLAG_SELECTED 0x10
498 #define ZEBRA_FLAG_CHANGED 0x20
499 #define ZEBRA_FLAG_STATIC 0x40
500 #define ZEBRA_FLAG_REJECT 0x80
501 #define ZEBRA_FLAG_SCOPE_LINK 0x100
503 /* Zebra nexthop flags. */
504 #define ZEBRA_NEXTHOP_IFINDEX 1
505 #define ZEBRA_NEXTHOP_IPV4 2
506 #define ZEBRA_NEXTHOP_IPV4_IFINDEX 3
507 #define ZEBRA_NEXTHOP_IPV6 4
508 #define ZEBRA_NEXTHOP_IPV6_IFINDEX 5
509 #define ZEBRA_NEXTHOP_BLACKHOLE 6
510 #define ZEBRA_NEXTHOP_IPV4_ONLINK 7
512 #ifndef INADDR_LOOPBACK
513 #define INADDR_LOOPBACK 0x7f000001 /* Internet address 127.0.0.1. */
516 /* Address family numbers from RFC1700. */
521 /* Subsequent Address Family Identifier. */
522 #define SAFI_UNICAST 1
523 #define SAFI_MULTICAST 2
524 #define SAFI_RESERVED_3 3
525 #define SAFI_MPLS_VPN 4
528 /* Filter direction. */
533 /* Default Administrative Distance of each protocol. */
534 #define ZEBRA_KERNEL_DISTANCE_DEFAULT 0
535 #define ZEBRA_CONNECT_DISTANCE_DEFAULT 0
536 #define ZEBRA_STATIC_DISTANCE_DEFAULT 1
537 #define ZEBRA_RIP_DISTANCE_DEFAULT 120
538 #define ZEBRA_RIPNG_DISTANCE_DEFAULT 120
539 #define ZEBRA_OSPF_DISTANCE_DEFAULT 110
540 #define ZEBRA_OSPF6_DISTANCE_DEFAULT 110
541 #define ZEBRA_ISIS_DISTANCE_DEFAULT 115
542 #define ZEBRA_IBGP_DISTANCE_DEFAULT 200
543 #define ZEBRA_EBGP_DISTANCE_DEFAULT 20
544 #define ZEBRA_TABLE_DISTANCE_DEFAULT 150
546 /* Flag manipulation macros. */
547 #define CHECK_FLAG(V,F) ((V) & (F))
548 #define SET_FLAG(V,F) (V) |= (F)
549 #define UNSET_FLAG(V,F) (V) &= ~(F)
550 #define RESET_FLAG(V) (V) = 0
552 /* AFI and SAFI type. */
553 typedef u_int16_t afi_t
;
554 typedef u_int8_t safi_t
;
556 /* Zebra types. Used in Zserv message header. */
557 typedef u_int16_t zebra_size_t
;
558 typedef u_int16_t zebra_command_t
;
561 typedef u_int16_t vrf_id_t
;
563 /* FIFO -- first in first out structure and macros. */
570 #define FIFO_INIT(F) \
572 struct fifo *Xfifo = (struct fifo *)(F); \
573 Xfifo->next = Xfifo->prev = Xfifo; \
576 #define FIFO_ADD(F,N) \
578 struct fifo *Xfifo = (struct fifo *)(F); \
579 struct fifo *Xnode = (struct fifo *)(N); \
580 Xnode->next = Xfifo; \
581 Xnode->prev = Xfifo->prev; \
582 Xfifo->prev = Xfifo->prev->next = Xnode; \
585 #define FIFO_DEL(N) \
587 struct fifo *Xnode = (struct fifo *)(N); \
588 Xnode->prev->next = Xnode->next; \
589 Xnode->next->prev = Xnode->prev; \
592 #define FIFO_HEAD(F) \
593 ((((struct fifo *)(F))->next == (struct fifo *)(F)) \
596 #define FIFO_EMPTY(F) \
597 (((struct fifo *)(F))->next == (struct fifo *)(F))
599 #define FIFO_TOP(F) \
600 (FIFO_EMPTY(F) ? NULL : ((struct fifo *)(F))->next)
602 #endif /* _ZEBRA_H */