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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 */
31 typedef unsigned int uint32_t;
32 typedef unsigned short uint16_t;
33 typedef unsigned char uint8_t;
49 #endif /* HAVE_STROPTS_H */
50 #include <sys/select.h>
52 #include <sys/types.h>
53 #include <sys/param.h>
54 #ifdef HAVE_SYS_SYSCTL_H
56 #include <linux/types.h>
58 #include <sys/sysctl.h>
59 #endif /* HAVE_SYS_SYSCTL_H */
60 #include <sys/ioctl.h>
61 #ifdef HAVE_SYS_CONF_H
63 #endif /* HAVE_SYS_CONF_H */
64 #ifdef HAVE_SYS_KSYM_H
66 #endif /* HAVE_SYS_KSYM_H */
71 #include <sys/utsname.h>
72 #include <sys/resource.h>
77 /* machine dependent includes */
82 /* machine dependent includes */
83 #ifdef HAVE_LINUX_VERSION_H
84 #include <linux/version.h>
85 #endif /* HAVE_LINUX_VERSION_H */
87 #ifdef HAVE_ASM_TYPES_H
88 #include <asm/types.h>
89 #endif /* HAVE_ASM_TYPES_H */
91 /* misc include group */
93 #if !(defined(__STDC_VERSION__) && __STDC_VERSION__ >= 199901L)
94 /* Not C99; do we need to define va_copy? */
97 #define va_copy(DST,SRC) __va_copy(DST,SRC)
99 /* Now we are desperate; this should work on many typical platforms.
100 But this is slightly dangerous, because the standard does not require
101 va_copy to be a macro. */
102 #define va_copy(DST,SRC) memcpy(&(DST), &(SRC), sizeof(va_list))
103 #warning "Not C99 and no va_copy macro available, falling back to memcpy"
104 #endif /* __va_copy */
105 #endif /* !va_copy */
110 #include <sys/capability.h>
111 #include <sys/prctl.h>
112 #endif /* HAVE_LCAPS */
114 #ifdef HAVE_SOLARIS_CAPABILITIES
116 #endif /* HAVE_SOLARIS_CAPABILITIES */
118 /* network include group */
120 #include <sys/socket.h>
122 #ifdef HAVE_SYS_SOCKIO_H
123 #include <sys/sockio.h>
124 #endif /* HAVE_SYS_SOCKIO_H */
127 #define __APPLE_USE_RFC_3542
130 #ifndef HAVE_LIBCRYPT
131 #ifdef HAVE_LIBCRYPTO
132 #include <openssl/des.h>
133 # define crypt DES_crypt
137 #ifdef CRYPTO_OPENSSL
138 #include <openssl/evp.h>
141 #include "openbsd-tree.h"
143 #include <netinet/in.h>
144 #include <netinet/in_systm.h>
145 #include <netinet/ip.h>
146 #include <netinet/tcp.h>
148 #ifdef HAVE_NET_NETOPT_H
149 #include <net/netopt.h>
150 #endif /* HAVE_NET_NETOPT_H */
154 #ifdef HAVE_NET_IF_DL_H
155 #include <net/if_dl.h>
156 #endif /* HAVE_NET_IF_DL_H */
158 #ifdef HAVE_NET_IF_VAR_H
159 #include <net/if_var.h>
160 #endif /* HAVE_NET_IF_VAR_H */
162 #include <net/route.h>
165 #include <linux/netlink.h>
166 #include <linux/rtnetlink.h>
167 #include <linux/filter.h>
169 #define RT_TABLE_MAIN 0
170 #endif /* HAVE_NETLINK */
173 #include <arpa/inet.h>
175 #ifdef HAVE_INET_ND_H
177 #endif /* HAVE_INET_ND_H */
179 #ifdef HAVE_NETINET_IN_VAR_H
180 #include <netinet/in_var.h>
181 #endif /* HAVE_NETINET_IN_VAR_H */
183 #ifdef HAVE_NETINET6_IN6_VAR_H
184 #include <netinet6/in6_var.h>
185 #endif /* HAVE_NETINET6_IN6_VAR_H */
187 #ifdef HAVE_NETINET_IN6_VAR_H
188 #include <netinet/in6_var.h>
189 #endif /* HAVE_NETINET_IN6_VAR_H */
191 #ifdef HAVE_NETINET6_IN_H
192 #include <netinet6/in.h>
193 #endif /* HAVE_NETINET6_IN_H */
196 #ifdef HAVE_NETINET6_IP6_H
197 #include <netinet6/ip6.h>
198 #endif /* HAVE_NETINET6_IP6_H */
200 #include <netinet/icmp6.h>
202 #ifdef HAVE_NETINET6_ND6_H
203 #include <netinet6/nd6.h>
204 #endif /* HAVE_NETINET6_ND6_H */
206 /* Some systems do not define UINT32_MAX, etc.. from inttypes.h
207 * e.g. this makes life easier for FBSD 4.11 users.
210 #define INT16_MAX (32767)
213 #define INT32_MAX (2147483647)
216 #define UINT16_MAX (65535U)
219 #define UINT32_MAX (4294967295U)
222 #ifdef HAVE_GLIBC_BACKTRACE
223 #include <execinfo.h>
224 #endif /* HAVE_GLIBC_BACKTRACE */
226 /* Local includes: */
227 #if !(defined(__GNUC__) || defined(VTYSH_EXTRACT_PL))
228 #define __attribute__(x)
229 #endif /* !__GNUC__ || VTYSH_EXTRACT_PL */
234 * Add explicit static cast only when using a C++ compiler.
237 #define static_cast(l, r) static_cast<decltype(l)>((r))
239 #define static_cast(l, r) (r)
243 size_t strlcat(char *__restrict dest
,
244 const char *__restrict src
, size_t destsize
);
247 size_t strlcpy(char *__restrict dest
,
248 const char *__restrict src
, size_t destsize
);
252 * RFC 3542 defines several macros for using struct cmsghdr.
253 * Here, we define those that are not present
257 * Internal defines, for use only in this file.
258 * These are likely wrong on other than ILP32 machines, so warn.
260 #ifndef _CMSG_DATA_ALIGN
261 #define _CMSG_DATA_ALIGN(n) (((n) + 3) & ~3)
262 #endif /* _CMSG_DATA_ALIGN */
264 #ifndef _CMSG_HDR_ALIGN
265 #define _CMSG_HDR_ALIGN(n) (((n) + 3) & ~3)
266 #endif /* _CMSG_HDR_ALIGN */
269 * CMSG_SPACE and CMSG_LEN are required in RFC3542, but were new in that
273 #define CMSG_SPACE(l) \
274 (_CMSG_DATA_ALIGN(sizeof(struct cmsghdr)) + _CMSG_HDR_ALIGN(l))
275 #warning "assuming 4-byte alignment for CMSG_SPACE"
276 #endif /* CMSG_SPACE */
280 #define CMSG_LEN(l) (_CMSG_DATA_ALIGN(sizeof(struct cmsghdr)) + (l))
281 #warning "assuming 4-byte alignment for CMSG_LEN"
282 #endif /* CMSG_LEN */
285 /* The definition of struct in_pktinfo is missing in old version of
286 GLIBC 2.1 (Redhat 6.1). */
287 #if defined(GNU_LINUX) && !defined(HAVE_STRUCT_IN_PKTINFO)
290 struct in_addr ipi_spec_dst
;
291 struct in_addr ipi_addr
;
296 * IP_HDRINCL / struct ip byte order
298 * Linux: network byte order
299 * *BSD: network, except for length and offset. (cf Stevens)
300 * SunOS: nominally as per BSD. but bug: network order on LE.
301 * OpenBSD: network byte order, apart from older versions which are as per
304 #if defined(__NetBSD__) \
305 || (defined(__FreeBSD__) && (__FreeBSD_version < 1100030)) \
306 || (defined(__OpenBSD__) && (OpenBSD < 200311)) \
307 || (defined(__APPLE__)) \
308 || (defined(SUNOS_5) && defined(WORDS_BIGENDIAN))
309 #define HAVE_IP_HDRINCL_BSD_ORDER
312 /* Define BYTE_ORDER, if not defined. Useful for compiler conditional
313 * code, rather than preprocessor conditional.
314 * Not all the world has this BSD define.
317 #define BIG_ENDIAN 4321 /* least-significant byte first (vax, pc) */
318 #define LITTLE_ENDIAN 1234 /* most-significant byte first (IBM, net) */
319 #define PDP_ENDIAN 3412 /* LSB first in word, MSW first in long (pdp) */
321 #if defined(WORDS_BIGENDIAN)
322 #define BYTE_ORDER BIG_ENDIAN
323 #else /* !WORDS_BIGENDIAN */
324 #define BYTE_ORDER LITTLE_ENDIAN
325 #endif /* WORDS_BIGENDIAN */
327 #endif /* ndef BYTE_ORDER */
329 /* For old definition. */
330 #ifndef IN6_ARE_ADDR_EQUAL
331 #define IN6_ARE_ADDR_EQUAL IN6_IS_ADDR_EQUAL
332 #endif /* IN6_ARE_ADDR_EQUAL */
334 /* default zebra TCP port for zclient */
335 #define ZEBRA_PORT 2600
338 * The compiler.h header is used for anyone using the CPP_NOTICE
339 * since this is universally needed, let's add it to zebra.h
341 #include "compiler.h"
343 /* Zebra route's types are defined in route_types.h */
344 #include "route_types.h"
346 #define strmatch(a,b) (!strcmp((a), (b)))
348 #ifndef INADDR_LOOPBACK
349 #define INADDR_LOOPBACK 0x7f000001 /* Internet address 127.0.0.1. */
352 /* Address family numbers from RFC1700. */
361 /* Subsequent Address Family Identifier. */
369 SAFI_LABELED_UNICAST
= 6,
374 /* Default Administrative Distance of each protocol. */
375 #define ZEBRA_KERNEL_DISTANCE_DEFAULT 0
376 #define ZEBRA_CONNECT_DISTANCE_DEFAULT 0
377 #define ZEBRA_STATIC_DISTANCE_DEFAULT 1
378 #define ZEBRA_RIP_DISTANCE_DEFAULT 120
379 #define ZEBRA_RIPNG_DISTANCE_DEFAULT 120
380 #define ZEBRA_OSPF_DISTANCE_DEFAULT 110
381 #define ZEBRA_OSPF6_DISTANCE_DEFAULT 110
382 #define ZEBRA_ISIS_DISTANCE_DEFAULT 115
383 #define ZEBRA_IBGP_DISTANCE_DEFAULT 200
384 #define ZEBRA_EBGP_DISTANCE_DEFAULT 20
385 #define ZEBRA_TABLE_DISTANCE_DEFAULT 15
387 /* Flag manipulation macros. */
388 #define CHECK_FLAG(V,F) ((V) & (F))
389 #define SET_FLAG(V,F) (V) |= (F)
390 #define UNSET_FLAG(V,F) (V) &= ~(F)
391 #define RESET_FLAG(V) (V) = 0
392 #define COND_FLAG(V, F, C) ((C) ? (SET_FLAG(V, F)) : (UNSET_FLAG(V, F)))
394 /* Atomic flag manipulation macros. */
395 #define CHECK_FLAG_ATOMIC(PV, F) \
396 ((atomic_load_explicit(PV, memory_order_seq_cst)) & (F))
397 #define SET_FLAG_ATOMIC(PV, F) \
398 ((atomic_fetch_or_explicit(PV, (F), memory_order_seq_cst)))
399 #define UNSET_FLAG_ATOMIC(PV, F) \
400 ((atomic_fetch_and_explicit(PV, ~(F), memory_order_seq_cst)))
401 #define RESET_FLAG_ATOMIC(PV) \
402 ((atomic_store_explicit(PV, 0, memory_order_seq_cst)))
405 typedef uint32_t vrf_id_t
;
407 typedef uint32_t route_tag_t
;
408 #define ROUTE_TAG_MAX UINT32_MAX
409 #define ROUTE_TAG_PRI PRIu32
411 #endif /* _ZEBRA_H */