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git.proxmox.com Git - mirror_frr.git/blob - lib/zebra.h
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 along
17 * with this program; see the file COPYING; if not, write to the Free Software
18 * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
26 #endif /* HAVE_CONFIG_H */
43 #endif /* HAVE_STROPTS_H */
44 #include <sys/select.h>
46 #include <sys/types.h>
47 #include <sys/param.h>
48 #ifdef HAVE_SYS_SYSCTL_H
50 #include <linux/types.h>
52 #include <sys/sysctl.h>
54 #endif /* HAVE_SYS_SYSCTL_H */
55 #include <sys/ioctl.h>
56 #ifdef HAVE_SYS_CONF_H
58 #endif /* HAVE_SYS_CONF_H */
59 #ifdef HAVE_SYS_KSYM_H
61 #endif /* HAVE_SYS_KSYM_H */
66 #include <sys/utsname.h>
67 #include <sys/resource.h>
72 /* machine dependent includes */
73 #ifdef HAVE_LINUX_VERSION_H
74 #include <linux/version.h>
75 #endif /* HAVE_LINUX_VERSION_H */
77 #ifdef HAVE_ASM_TYPES_H
78 #include <asm/types.h>
79 #endif /* HAVE_ASM_TYPES_H */
81 /* misc include group */
83 #if !(defined(__STDC_VERSION__) && __STDC_VERSION__ >= 199901L)
84 /* Not C99; do we need to define va_copy? */
87 #define va_copy(DST,SRC) __va_copy(DST,SRC)
89 /* Now we are desperate; this should work on many typical platforms.
90 But this is slightly dangerous, because the standard does not require
91 va_copy to be a macro. */
92 #define va_copy(DST,SRC) memcpy(&(DST), &(SRC), sizeof(va_list))
93 #warning "Not C99 and no va_copy macro available, falling back to memcpy"
94 #endif /* __va_copy */
100 #include <sys/capability.h>
101 #include <sys/prctl.h>
102 #endif /* HAVE_LCAPS */
104 /* network include group */
106 #include <sys/socket.h>
108 #ifdef HAVE_SYS_SOCKIO_H
109 #include <sys/sockio.h>
110 #endif /* HAVE_SYS_SOCKIO_H */
113 #define __APPLE_USE_RFC_3542
116 #ifndef HAVE_LIBCRYPT
117 #ifdef HAVE_LIBCRYPTO
118 #include <openssl/des.h>
119 # define crypt DES_crypt
123 #ifdef CRYPTO_OPENSSL
124 #include <openssl/evp.h>
125 #include <openssl/hmac.h>
128 #include "openbsd-tree.h"
130 #include <netinet/in.h>
131 #include <netinet/in_systm.h>
132 #include <netinet/ip.h>
133 #include <netinet/tcp.h>
135 #ifdef HAVE_NET_NETOPT_H
136 #include <net/netopt.h>
137 #endif /* HAVE_NET_NETOPT_H */
141 #ifdef HAVE_NET_IF_DL_H
142 #include <net/if_dl.h>
143 #endif /* HAVE_NET_IF_DL_H */
145 #ifdef HAVE_NET_IF_VAR_H
146 #include <net/if_var.h>
147 #endif /* HAVE_NET_IF_VAR_H */
149 #include <net/route.h>
152 #include <linux/netlink.h>
153 #include <linux/rtnetlink.h>
154 #include <linux/filter.h>
156 #define RT_TABLE_MAIN 0
157 #endif /* HAVE_NETLINK */
160 #include <arpa/inet.h>
162 #ifdef HAVE_INET_ND_H
164 #endif /* HAVE_INET_ND_H */
166 #ifdef HAVE_NETINET_IN_VAR_H
167 #include <netinet/in_var.h>
168 #endif /* HAVE_NETINET_IN_VAR_H */
170 #ifdef HAVE_NETINET6_IN6_VAR_H
171 #include <netinet6/in6_var.h>
172 #endif /* HAVE_NETINET6_IN6_VAR_H */
174 #ifdef HAVE_NETINET_IN6_VAR_H
175 #include <netinet/in6_var.h>
176 #endif /* HAVE_NETINET_IN6_VAR_H */
178 #ifdef HAVE_NETINET6_IN_H
179 #include <netinet6/in.h>
180 #endif /* HAVE_NETINET6_IN_H */
183 #ifdef HAVE_NETINET6_IP6_H
184 #include <netinet6/ip6.h>
185 #endif /* HAVE_NETINET6_IP6_H */
187 #include <netinet/icmp6.h>
189 #ifdef HAVE_NETINET6_ND6_H
190 #include <netinet6/nd6.h>
191 #endif /* HAVE_NETINET6_ND6_H */
193 /* Some systems do not define UINT32_MAX, etc.. from inttypes.h
194 * e.g. this makes life easier for FBSD 4.11 users.
197 #define INT16_MAX (32767)
200 #define INT32_MAX (2147483647)
203 #define UINT16_MAX (65535U)
206 #define UINT32_MAX (4294967295U)
209 #ifdef HAVE_GLIBC_BACKTRACE
210 #include <execinfo.h>
211 #endif /* HAVE_GLIBC_BACKTRACE */
213 /* Local includes: */
214 #if !(defined(__GNUC__) || defined(VTYSH_EXTRACT_PL))
215 #define __attribute__(x)
216 #endif /* !__GNUC__ || VTYSH_EXTRACT_PL */
221 * Add explicit static cast only when using a C++ compiler.
224 #define static_cast(l, r) static_cast<decltype(l)>((r))
226 #define static_cast(l, r) (r)
230 size_t strlcat(char *__restrict dest
,
231 const char *__restrict src
, size_t destsize
);
234 size_t strlcpy(char *__restrict dest
,
235 const char *__restrict src
, size_t destsize
);
239 * RFC 3542 defines several macros for using struct cmsghdr.
240 * Here, we define those that are not present
244 * Internal defines, for use only in this file.
245 * These are likely wrong on other than ILP32 machines, so warn.
247 #ifndef _CMSG_DATA_ALIGN
248 #define _CMSG_DATA_ALIGN(n) (((n) + 3) & ~3)
249 #endif /* _CMSG_DATA_ALIGN */
251 #ifndef _CMSG_HDR_ALIGN
252 #define _CMSG_HDR_ALIGN(n) (((n) + 3) & ~3)
253 #endif /* _CMSG_HDR_ALIGN */
256 * CMSG_SPACE and CMSG_LEN are required in RFC3542, but were new in that
260 #define CMSG_SPACE(l) \
261 (_CMSG_DATA_ALIGN(sizeof(struct cmsghdr)) + _CMSG_HDR_ALIGN(l))
262 #warning "assuming 4-byte alignment for CMSG_SPACE"
263 #endif /* CMSG_SPACE */
267 #define CMSG_LEN(l) (_CMSG_DATA_ALIGN(sizeof(struct cmsghdr)) + (l))
268 #warning "assuming 4-byte alignment for CMSG_LEN"
269 #endif /* CMSG_LEN */
272 /* The definition of struct in_pktinfo is missing in old version of
273 GLIBC 2.1 (Redhat 6.1). */
274 #if defined(GNU_LINUX) && !defined(HAVE_STRUCT_IN_PKTINFO)
277 struct in_addr ipi_spec_dst
;
278 struct in_addr ipi_addr
;
283 * IP_HDRINCL / struct ip byte order
285 * Linux: network byte order
286 * *BSD: network, except for length and offset. (cf Stevens)
287 * SunOS: nominally as per BSD. but bug: network order on LE.
288 * OpenBSD: network byte order, apart from older versions which are as per
291 #if defined(__NetBSD__) \
292 || (defined(__FreeBSD__) && (__FreeBSD_version < 1100030)) \
293 || (defined(__OpenBSD__) && (OpenBSD < 200311)) \
294 || (defined(__APPLE__))
295 #define HAVE_IP_HDRINCL_BSD_ORDER
298 /* Define BYTE_ORDER, if not defined. Useful for compiler conditional
299 * code, rather than preprocessor conditional.
300 * Not all the world has this BSD define.
303 #define BIG_ENDIAN 4321 /* least-significant byte first (vax, pc) */
304 #define LITTLE_ENDIAN 1234 /* most-significant byte first (IBM, net) */
305 #define PDP_ENDIAN 3412 /* LSB first in word, MSW first in long (pdp) */
307 #if defined(WORDS_BIGENDIAN)
308 #define BYTE_ORDER BIG_ENDIAN
309 #else /* !WORDS_BIGENDIAN */
310 #define BYTE_ORDER LITTLE_ENDIAN
311 #endif /* WORDS_BIGENDIAN */
313 #endif /* ndef BYTE_ORDER */
315 /* For old definition. */
316 #ifndef IN6_ARE_ADDR_EQUAL
317 #define IN6_ARE_ADDR_EQUAL IN6_IS_ADDR_EQUAL
318 #endif /* IN6_ARE_ADDR_EQUAL */
320 /* default zebra TCP port for zclient */
321 #define ZEBRA_PORT 2600
324 * The compiler.h header is used for anyone using the CPP_NOTICE
325 * since this is universally needed, let's add it to zebra.h
327 #include "compiler.h"
329 /* Zebra route's types are defined in route_types.h */
330 #include "route_types.h"
332 #define strmatch(a,b) (!strcmp((a), (b)))
334 #ifndef INADDR_LOOPBACK
335 #define INADDR_LOOPBACK 0x7f000001 /* Internet address 127.0.0.1. */
338 /* Address family numbers from RFC1700. */
347 #define IS_VALID_AFI(a) ((a) > AFI_UNSPEC && (a) < AFI_MAX)
349 /* Subsequent Address Family Identifier. */
357 SAFI_LABELED_UNICAST
= 6,
362 #define FOREACH_AFI_SAFI(afi, safi) \
363 for (afi = AFI_IP; afi < AFI_MAX; afi++) \
364 for (safi = SAFI_UNICAST; safi < SAFI_MAX; safi++)
366 /* Default Administrative Distance of each protocol. */
367 #define ZEBRA_KERNEL_DISTANCE_DEFAULT 0
368 #define ZEBRA_CONNECT_DISTANCE_DEFAULT 0
369 #define ZEBRA_STATIC_DISTANCE_DEFAULT 1
370 #define ZEBRA_RIP_DISTANCE_DEFAULT 120
371 #define ZEBRA_RIPNG_DISTANCE_DEFAULT 120
372 #define ZEBRA_OSPF_DISTANCE_DEFAULT 110
373 #define ZEBRA_OSPF6_DISTANCE_DEFAULT 110
374 #define ZEBRA_ISIS_DISTANCE_DEFAULT 115
375 #define ZEBRA_IBGP_DISTANCE_DEFAULT 200
376 #define ZEBRA_EBGP_DISTANCE_DEFAULT 20
377 #define ZEBRA_TABLE_DISTANCE_DEFAULT 15
379 /* Flag manipulation macros. */
380 #define CHECK_FLAG(V,F) ((V) & (F))
381 #define SET_FLAG(V,F) (V) |= (F)
382 #define UNSET_FLAG(V,F) (V) &= ~(F)
383 #define RESET_FLAG(V) (V) = 0
384 #define COND_FLAG(V, F, C) ((C) ? (SET_FLAG(V, F)) : (UNSET_FLAG(V, F)))
386 /* Atomic flag manipulation macros. */
387 #define CHECK_FLAG_ATOMIC(PV, F) \
388 ((atomic_load_explicit(PV, memory_order_seq_cst)) & (F))
389 #define SET_FLAG_ATOMIC(PV, F) \
390 ((atomic_fetch_or_explicit(PV, (F), memory_order_seq_cst)))
391 #define UNSET_FLAG_ATOMIC(PV, F) \
392 ((atomic_fetch_and_explicit(PV, ~(F), memory_order_seq_cst)))
393 #define RESET_FLAG_ATOMIC(PV) \
394 ((atomic_store_explicit(PV, 0, memory_order_seq_cst)))
397 typedef uint32_t vrf_id_t
;
399 typedef uint32_t route_tag_t
;
400 #define ROUTE_TAG_MAX UINT32_MAX
401 #define ROUTE_TAG_PRI PRIu32
403 #endif /* _ZEBRA_H */