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718e3744 | 1 | /* Zebra common header. |
896014f4 DL |
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 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 | |
19 | */ | |
718e3744 | 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 | ||
ef7eec74 QY |
28 | #include "compiler.h" |
29 | ||
718e3744 | 30 | #ifdef SUNOS_5 |
d7c0a89a QY |
31 | typedef unsigned int uint32_t; |
32 | typedef unsigned short uint16_t; | |
33 | typedef unsigned char uint8_t; | |
718e3744 | 34 | #endif /* SUNOS_5 */ |
35 | ||
36 | #include <unistd.h> | |
37 | #include <stdio.h> | |
38 | #include <stdlib.h> | |
c423d413 | 39 | #include <stddef.h> |
718e3744 | 40 | #include <ctype.h> |
41 | #include <errno.h> | |
42 | #include <fcntl.h> | |
43 | #include <signal.h> | |
44 | #include <string.h> | |
edd7c245 | 45 | #include <pwd.h> |
46 | #include <grp.h> | |
718e3744 | 47 | #ifdef HAVE_STROPTS_H |
48 | #include <stropts.h> | |
49 | #endif /* HAVE_STROPTS_H */ | |
718e3744 | 50 | #include <sys/select.h> |
718e3744 | 51 | #include <sys/stat.h> |
718e3744 | 52 | #include <sys/types.h> |
53 | #include <sys/param.h> | |
54 | #ifdef HAVE_SYS_SYSCTL_H | |
0dc0b708 AS |
55 | #ifdef GNU_LINUX |
56 | #include <linux/types.h> | |
57 | #endif | |
718e3744 | 58 | #include <sys/sysctl.h> |
59 | #endif /* HAVE_SYS_SYSCTL_H */ | |
60 | #include <sys/ioctl.h> | |
61 | #ifdef HAVE_SYS_CONF_H | |
62 | #include <sys/conf.h> | |
63 | #endif /* HAVE_SYS_CONF_H */ | |
64 | #ifdef HAVE_SYS_KSYM_H | |
65 | #include <sys/ksym.h> | |
66 | #endif /* HAVE_SYS_KSYM_H */ | |
67 | #include <syslog.h> | |
24f5e2fc DL |
68 | #include <sys/time.h> |
69 | #include <time.h> | |
718e3744 | 70 | #include <sys/uio.h> |
71 | #include <sys/utsname.h> | |
718e3744 | 72 | #include <sys/resource.h> |
a58c25b6 | 73 | #include <limits.h> |
35cfc90c | 74 | #include <inttypes.h> |
63a13864 | 75 | #include <stdbool.h> |
718e3744 | 76 | |
77 | /* machine dependent includes */ | |
78 | #ifdef SUNOS_5 | |
718e3744 | 79 | #include <strings.h> |
80 | #endif /* SUNOS_5 */ | |
81 | ||
82 | /* machine dependent includes */ | |
83 | #ifdef HAVE_LINUX_VERSION_H | |
84 | #include <linux/version.h> | |
85 | #endif /* HAVE_LINUX_VERSION_H */ | |
86 | ||
ba965c6c | 87 | #ifdef HAVE_ASM_TYPES_H |
88 | #include <asm/types.h> | |
89 | #endif /* HAVE_ASM_TYPES_H */ | |
90 | ||
718e3744 | 91 | /* misc include group */ |
92 | #include <stdarg.h> | |
4cf0d0df | 93 | #if !(defined(__STDC_VERSION__) && __STDC_VERSION__ >= 199901L) |
94 | /* Not C99; do we need to define va_copy? */ | |
e22f5516 | 95 | #ifndef va_copy |
96 | #ifdef __va_copy | |
4cf0d0df | 97 | #define va_copy(DST,SRC) __va_copy(DST,SRC) |
e22f5516 | 98 | #else |
d62a17ae | 99 | /* Now we are desperate; this should work on many typical platforms. |
e22f5516 | 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 */ | |
4cf0d0df | 106 | #endif /* !C99 */ |
db8eaac6 | 107 | |
718e3744 | 108 | |
ba3a0bc5 | 109 | #ifdef HAVE_LCAPS |
110 | #include <sys/capability.h> | |
111 | #include <sys/prctl.h> | |
112 | #endif /* HAVE_LCAPS */ | |
113 | ||
ceacedba | 114 | #ifdef HAVE_SOLARIS_CAPABILITIES |
115 | #include <priv.h> | |
116 | #endif /* HAVE_SOLARIS_CAPABILITIES */ | |
117 | ||
718e3744 | 118 | /* network include group */ |
119 | ||
120 | #include <sys/socket.h> | |
121 | ||
122 | #ifdef HAVE_SYS_SOCKIO_H | |
123 | #include <sys/sockio.h> | |
124 | #endif /* HAVE_SYS_SOCKIO_H */ | |
125 | ||
ea057677 HT |
126 | #ifdef __APPLE__ |
127 | #define __APPLE_USE_RFC_3542 | |
128 | #endif | |
129 | ||
f9e75524 | 130 | #ifndef HAVE_LIBCRYPT |
996c9314 LB |
131 | #ifdef HAVE_LIBCRYPTO |
132 | #include <openssl/des.h> | |
f9e75524 | 133 | # define crypt DES_crypt |
996c9314 | 134 | #endif |
f9e75524 JAG |
135 | #endif |
136 | ||
0513a271 MR |
137 | #ifdef CRYPTO_OPENSSL |
138 | #include <openssl/evp.h> | |
139 | #endif | |
140 | ||
8d8763f4 | 141 | #include "openbsd-tree.h" |
6021c8d3 | 142 | |
718e3744 | 143 | #include <netinet/in.h> |
718e3744 | 144 | #include <netinet/in_systm.h> |
145 | #include <netinet/ip.h> | |
146 | #include <netinet/tcp.h> | |
147 | ||
148 | #ifdef HAVE_NET_NETOPT_H | |
149 | #include <net/netopt.h> | |
150 | #endif /* HAVE_NET_NETOPT_H */ | |
151 | ||
152 | #include <net/if.h> | |
153 | ||
154 | #ifdef HAVE_NET_IF_DL_H | |
155 | #include <net/if_dl.h> | |
156 | #endif /* HAVE_NET_IF_DL_H */ | |
157 | ||
158 | #ifdef HAVE_NET_IF_VAR_H | |
159 | #include <net/if_var.h> | |
160 | #endif /* HAVE_NET_IF_VAR_H */ | |
161 | ||
162 | #include <net/route.h> | |
163 | ||
164 | #ifdef HAVE_NETLINK | |
165 | #include <linux/netlink.h> | |
166 | #include <linux/rtnetlink.h> | |
768a27ea | 167 | #include <linux/filter.h> |
718e3744 | 168 | #else |
169 | #define RT_TABLE_MAIN 0 | |
170 | #endif /* HAVE_NETLINK */ | |
171 | ||
718e3744 | 172 | #include <netdb.h> |
718e3744 | 173 | #include <arpa/inet.h> |
718e3744 | 174 | |
175 | #ifdef HAVE_INET_ND_H | |
176 | #include <inet/nd.h> | |
177 | #endif /* HAVE_INET_ND_H */ | |
178 | ||
179 | #ifdef HAVE_NETINET_IN_VAR_H | |
180 | #include <netinet/in_var.h> | |
181 | #endif /* HAVE_NETINET_IN_VAR_H */ | |
182 | ||
726f9b2b | 183 | #ifdef HAVE_NETINET6_IN6_VAR_H |
184 | #include <netinet6/in6_var.h> | |
185 | #endif /* HAVE_NETINET6_IN6_VAR_H */ | |
186 | ||
718e3744 | 187 | #ifdef HAVE_NETINET_IN6_VAR_H |
188 | #include <netinet/in6_var.h> | |
189 | #endif /* HAVE_NETINET_IN6_VAR_H */ | |
190 | ||
191 | #ifdef HAVE_NETINET6_IN_H | |
192 | #include <netinet6/in.h> | |
193 | #endif /* HAVE_NETINET6_IN_H */ | |
194 | ||
195 | ||
196 | #ifdef HAVE_NETINET6_IP6_H | |
197 | #include <netinet6/ip6.h> | |
198 | #endif /* HAVE_NETINET6_IP6_H */ | |
199 | ||
718e3744 | 200 | #include <netinet/icmp6.h> |
718e3744 | 201 | |
202 | #ifdef HAVE_NETINET6_ND6_H | |
203 | #include <netinet6/nd6.h> | |
204 | #endif /* HAVE_NETINET6_ND6_H */ | |
205 | ||
35cfc90c PJ |
206 | /* Some systems do not define UINT32_MAX, etc.. from inttypes.h |
207 | * e.g. this makes life easier for FBSD 4.11 users. | |
208 | */ | |
35cfc90c PJ |
209 | #ifndef INT16_MAX |
210 | #define INT16_MAX (32767) | |
211 | #endif | |
212 | #ifndef INT32_MAX | |
213 | #define INT32_MAX (2147483647) | |
214 | #endif | |
35cfc90c PJ |
215 | #ifndef UINT16_MAX |
216 | #define UINT16_MAX (65535U) | |
217 | #endif | |
3b424979 | 218 | #ifndef UINT32_MAX |
35cfc90c PJ |
219 | #define UINT32_MAX (4294967295U) |
220 | #endif | |
3b424979 | 221 | |
fb2d1502 | 222 | #ifdef HAVE_GLIBC_BACKTRACE |
223 | #include <execinfo.h> | |
224 | #endif /* HAVE_GLIBC_BACKTRACE */ | |
225 | ||
db8eaac6 | 226 | /* Local includes: */ |
d62a17ae | 227 | #if !(defined(__GNUC__) || defined(VTYSH_EXTRACT_PL)) |
db8eaac6 | 228 | #define __attribute__(x) |
d62a17ae | 229 | #endif /* !__GNUC__ || VTYSH_EXTRACT_PL */ |
db8eaac6 | 230 | |
231 | #include "zassert.h" | |
232 | ||
343cd13e RW |
233 | /* |
234 | * Add explicit static cast only when using a C++ compiler. | |
235 | */ | |
236 | #ifdef __cplusplus | |
237 | #define static_cast(l, r) static_cast<decltype(l)>((r)) | |
238 | #else | |
239 | #define static_cast(l, r) (r) | |
240 | #endif | |
241 | ||
c5d9d3bb | 242 | #ifndef HAVE_STRLCAT |
c9a164df DS |
243 | size_t strlcat(char *__restrict dest, |
244 | const char *__restrict src, size_t destsize); | |
c5d9d3bb DL |
245 | #endif |
246 | #ifndef HAVE_STRLCPY | |
c9a164df DS |
247 | size_t strlcpy(char *__restrict dest, |
248 | const char *__restrict src, size_t destsize); | |
c5d9d3bb | 249 | #endif |
db8eaac6 | 250 | |
d62a17ae | 251 | /* |
69e1325f | 252 | * RFC 3542 defines several macros for using struct cmsghdr. |
253 | * Here, we define those that are not present | |
254 | */ | |
255 | ||
256 | /* | |
257 | * Internal defines, for use only in this file. | |
258 | * These are likely wrong on other than ILP32 machines, so warn. | |
02ff83c5 | 259 | */ |
260 | #ifndef _CMSG_DATA_ALIGN | |
261 | #define _CMSG_DATA_ALIGN(n) (((n) + 3) & ~3) | |
262 | #endif /* _CMSG_DATA_ALIGN */ | |
263 | ||
264 | #ifndef _CMSG_HDR_ALIGN | |
265 | #define _CMSG_HDR_ALIGN(n) (((n) + 3) & ~3) | |
266 | #endif /* _CMSG_HDR_ALIGN */ | |
267 | ||
69e1325f | 268 | /* |
269 | * CMSG_SPACE and CMSG_LEN are required in RFC3542, but were new in that | |
270 | * version. | |
271 | */ | |
02ff83c5 | 272 | #ifndef CMSG_SPACE |
d62a17ae | 273 | #define CMSG_SPACE(l) \ |
274 | (_CMSG_DATA_ALIGN(sizeof(struct cmsghdr)) + _CMSG_HDR_ALIGN(l)) | |
69e1325f | 275 | #warning "assuming 4-byte alignment for CMSG_SPACE" |
d62a17ae | 276 | #endif /* CMSG_SPACE */ |
02ff83c5 | 277 | |
278 | ||
279 | #ifndef CMSG_LEN | |
280 | #define CMSG_LEN(l) (_CMSG_DATA_ALIGN(sizeof(struct cmsghdr)) + (l)) | |
69e1325f | 281 | #warning "assuming 4-byte alignment for CMSG_LEN" |
02ff83c5 | 282 | #endif /* CMSG_LEN */ |
283 | ||
69e1325f | 284 | |
718e3744 | 285 | /* The definition of struct in_pktinfo is missing in old version of |
286 | GLIBC 2.1 (Redhat 6.1). */ | |
d62a17ae | 287 | #if defined(GNU_LINUX) && !defined(HAVE_STRUCT_IN_PKTINFO) |
288 | struct in_pktinfo { | |
289 | int ipi_ifindex; | |
290 | struct in_addr ipi_spec_dst; | |
291 | struct in_addr ipi_addr; | |
718e3744 | 292 | }; |
293 | #endif | |
294 | ||
d62a17ae | 295 | /* |
9172ee0e | 296 | * IP_HDRINCL / struct ip byte order |
297 | * | |
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. | |
d62a17ae | 301 | * OpenBSD: network byte order, apart from older versions which are as per |
9172ee0e | 302 | * *BSD |
303 | */ | |
d62a17ae | 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)) | |
9172ee0e | 309 | #define HAVE_IP_HDRINCL_BSD_ORDER |
310 | #endif | |
311 | ||
34204aac | 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. | |
315 | */ | |
316 | #ifndef BYTE_ORDER | |
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) */ | |
320 | ||
321 | #if defined(WORDS_BIGENDIAN) | |
322 | #define BYTE_ORDER BIG_ENDIAN | |
d62a17ae | 323 | #else /* !WORDS_BIGENDIAN */ |
34204aac | 324 | #define BYTE_ORDER LITTLE_ENDIAN |
325 | #endif /* WORDS_BIGENDIAN */ | |
326 | ||
327 | #endif /* ndef BYTE_ORDER */ | |
328 | ||
718e3744 | 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 */ | |
333 | ||
8cc4198f | 334 | /* default zebra TCP port for zclient */ |
335 | #define ZEBRA_PORT 2600 | |
336 | ||
728806e6 DS |
337 | /* |
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 | |
340 | */ | |
341 | #include "compiler.h" | |
342 | ||
e0ca5fde DL |
343 | /* Zebra route's types are defined in route_types.h */ |
344 | #include "route_types.h" | |
718e3744 | 345 | |
bf31fc81 DL |
346 | #define strmatch(a,b) (!strcmp((a), (b))) |
347 | ||
718e3744 | 348 | #ifndef INADDR_LOOPBACK |
349 | #define INADDR_LOOPBACK 0x7f000001 /* Internet address 127.0.0.1. */ | |
350 | #endif | |
351 | ||
352 | /* Address family numbers from RFC1700. */ | |
b26f891d SW |
353 | typedef enum { |
354 | AFI_UNSPEC = 0, | |
355 | AFI_IP = 1, | |
356 | AFI_IP6 = 2, | |
357 | AFI_L2VPN = 3, | |
358 | AFI_MAX = 4 | |
359 | } afi_t; | |
718e3744 | 360 | |
361 | /* Subsequent Address Family Identifier. */ | |
5c525538 RW |
362 | typedef enum { |
363 | SAFI_UNICAST = 1, | |
364 | SAFI_MULTICAST = 2, | |
365 | SAFI_MPLS_VPN = 3, | |
366 | SAFI_ENCAP = 4, | |
367 | SAFI_EVPN = 5, | |
368 | SAFI_LABELED_UNICAST = 6, | |
b98f7728 PG |
369 | SAFI_FLOWSPEC = 7, |
370 | SAFI_MAX = 8 | |
5c525538 | 371 | } safi_t; |
718e3744 | 372 | |
718e3744 | 373 | /* Default Administrative Distance of each protocol. */ |
374 | #define ZEBRA_KERNEL_DISTANCE_DEFAULT 0 | |
375 | #define ZEBRA_CONNECT_DISTANCE_DEFAULT 0 | |
376 | #define ZEBRA_STATIC_DISTANCE_DEFAULT 1 | |
377 | #define ZEBRA_RIP_DISTANCE_DEFAULT 120 | |
378 | #define ZEBRA_RIPNG_DISTANCE_DEFAULT 120 | |
379 | #define ZEBRA_OSPF_DISTANCE_DEFAULT 110 | |
380 | #define ZEBRA_OSPF6_DISTANCE_DEFAULT 110 | |
9e867fe6 | 381 | #define ZEBRA_ISIS_DISTANCE_DEFAULT 115 |
718e3744 | 382 | #define ZEBRA_IBGP_DISTANCE_DEFAULT 200 |
383 | #define ZEBRA_EBGP_DISTANCE_DEFAULT 20 | |
7ab5795a | 384 | #define ZEBRA_TABLE_DISTANCE_DEFAULT 15 |
718e3744 | 385 | |
386 | /* Flag manipulation macros. */ | |
387 | #define CHECK_FLAG(V,F) ((V) & (F)) | |
548e6f7d | 388 | #define SET_FLAG(V,F) (V) |= (F) |
389 | #define UNSET_FLAG(V,F) (V) &= ~(F) | |
fb018d25 | 390 | #define RESET_FLAG(V) (V) = 0 |
9fb964de | 391 | #define COND_FLAG(V, F, C) ((C) ? (SET_FLAG(V, F)) : (UNSET_FLAG(V, F))) |
718e3744 | 392 | |
f765d422 QY |
393 | /* Atomic flag manipulation macros. */ |
394 | #define CHECK_FLAG_ATOMIC(PV, F) \ | |
395 | ((atomic_load_explicit(PV, memory_order_seq_cst)) & (F)) | |
396 | #define SET_FLAG_ATOMIC(PV, F) \ | |
397 | ((atomic_fetch_or_explicit(PV, (F), memory_order_seq_cst))) | |
398 | #define UNSET_FLAG_ATOMIC(PV, F) \ | |
399 | ((atomic_fetch_and_explicit(PV, ~(F), memory_order_seq_cst))) | |
400 | #define RESET_FLAG_ATOMIC(PV) \ | |
401 | ((atomic_store_explicit(PV, 0, memory_order_seq_cst))) | |
402 | ||
b72ede27 | 403 | /* VRF ID type. */ |
a9ff90c4 | 404 | typedef uint32_t vrf_id_t; |
b72ede27 | 405 | |
dc9ffce8 CF |
406 | typedef uint32_t route_tag_t; |
407 | #define ROUTE_TAG_MAX UINT32_MAX | |
408 | #define ROUTE_TAG_PRI PRIu32 | |
409 | ||
718e3744 | 410 | #endif /* _ZEBRA_H */ |