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1 | /* Zebra common header. | |
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 | */ | |
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 | ||
28 | #include "compiler.h" | |
29 | ||
30 | #ifdef SUNOS_5 | |
31 | typedef unsigned int uint32_t; | |
32 | typedef unsigned short uint16_t; | |
33 | typedef unsigned char uint8_t; | |
34 | #endif /* SUNOS_5 */ | |
35 | ||
36 | #include <unistd.h> | |
37 | #include <stdio.h> | |
38 | #include <stdlib.h> | |
39 | #include <stddef.h> | |
40 | #include <ctype.h> | |
41 | #include <errno.h> | |
42 | #include <fcntl.h> | |
43 | #include <signal.h> | |
44 | #include <string.h> | |
45 | #include <pwd.h> | |
46 | #include <grp.h> | |
47 | #ifdef HAVE_STROPTS_H | |
48 | #include <stropts.h> | |
49 | #endif /* HAVE_STROPTS_H */ | |
50 | #include <sys/select.h> | |
51 | #include <sys/stat.h> | |
52 | #include <sys/types.h> | |
53 | #include <sys/param.h> | |
54 | #ifdef HAVE_SYS_SYSCTL_H | |
55 | #ifdef GNU_LINUX | |
56 | #include <linux/types.h> | |
57 | #endif | |
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> | |
68 | #include <sys/time.h> | |
69 | #include <time.h> | |
70 | #include <sys/uio.h> | |
71 | #include <sys/utsname.h> | |
72 | #include <sys/resource.h> | |
73 | #include <limits.h> | |
74 | #include <inttypes.h> | |
75 | #include <stdbool.h> | |
76 | ||
77 | /* machine dependent includes */ | |
78 | #ifdef SUNOS_5 | |
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 | ||
87 | #ifdef HAVE_ASM_TYPES_H | |
88 | #include <asm/types.h> | |
89 | #endif /* HAVE_ASM_TYPES_H */ | |
90 | ||
91 | /* misc include group */ | |
92 | #include <stdarg.h> | |
93 | #if !(defined(__STDC_VERSION__) && __STDC_VERSION__ >= 199901L) | |
94 | /* Not C99; do we need to define va_copy? */ | |
95 | #ifndef va_copy | |
96 | #ifdef __va_copy | |
97 | #define va_copy(DST,SRC) __va_copy(DST,SRC) | |
98 | #else | |
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 */ | |
106 | #endif /* !C99 */ | |
107 | ||
108 | ||
109 | #ifdef HAVE_LCAPS | |
110 | #include <sys/capability.h> | |
111 | #include <sys/prctl.h> | |
112 | #endif /* HAVE_LCAPS */ | |
113 | ||
114 | #ifdef HAVE_SOLARIS_CAPABILITIES | |
115 | #include <priv.h> | |
116 | #endif /* HAVE_SOLARIS_CAPABILITIES */ | |
117 | ||
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 | ||
126 | #ifdef __APPLE__ | |
127 | #define __APPLE_USE_RFC_3542 | |
128 | #endif | |
129 | ||
130 | #ifndef HAVE_LIBCRYPT | |
131 | #ifdef HAVE_LIBCRYPTO | |
132 | #include <openssl/des.h> | |
133 | # define crypt DES_crypt | |
134 | #endif | |
135 | #endif | |
136 | ||
137 | #include "openbsd-tree.h" | |
138 | ||
139 | #include <netinet/in.h> | |
140 | #include <netinet/in_systm.h> | |
141 | #include <netinet/ip.h> | |
142 | #include <netinet/tcp.h> | |
143 | ||
144 | #ifdef HAVE_NET_NETOPT_H | |
145 | #include <net/netopt.h> | |
146 | #endif /* HAVE_NET_NETOPT_H */ | |
147 | ||
148 | #include <net/if.h> | |
149 | ||
150 | #ifdef HAVE_NET_IF_DL_H | |
151 | #include <net/if_dl.h> | |
152 | #endif /* HAVE_NET_IF_DL_H */ | |
153 | ||
154 | #ifdef HAVE_NET_IF_VAR_H | |
155 | #include <net/if_var.h> | |
156 | #endif /* HAVE_NET_IF_VAR_H */ | |
157 | ||
158 | #include <net/route.h> | |
159 | ||
160 | #ifdef HAVE_NETLINK | |
161 | #include <linux/netlink.h> | |
162 | #include <linux/rtnetlink.h> | |
163 | #include <linux/filter.h> | |
164 | #else | |
165 | #define RT_TABLE_MAIN 0 | |
166 | #endif /* HAVE_NETLINK */ | |
167 | ||
168 | #include <netdb.h> | |
169 | #include <arpa/inet.h> | |
170 | ||
171 | #ifdef HAVE_INET_ND_H | |
172 | #include <inet/nd.h> | |
173 | #endif /* HAVE_INET_ND_H */ | |
174 | ||
175 | #ifdef HAVE_NETINET_IN_VAR_H | |
176 | #include <netinet/in_var.h> | |
177 | #endif /* HAVE_NETINET_IN_VAR_H */ | |
178 | ||
179 | #ifdef HAVE_NETINET6_IN6_VAR_H | |
180 | #include <netinet6/in6_var.h> | |
181 | #endif /* HAVE_NETINET6_IN6_VAR_H */ | |
182 | ||
183 | #ifdef HAVE_NETINET_IN6_VAR_H | |
184 | #include <netinet/in6_var.h> | |
185 | #endif /* HAVE_NETINET_IN6_VAR_H */ | |
186 | ||
187 | #ifdef HAVE_NETINET6_IN_H | |
188 | #include <netinet6/in.h> | |
189 | #endif /* HAVE_NETINET6_IN_H */ | |
190 | ||
191 | ||
192 | #ifdef HAVE_NETINET6_IP6_H | |
193 | #include <netinet6/ip6.h> | |
194 | #endif /* HAVE_NETINET6_IP6_H */ | |
195 | ||
196 | #include <netinet/icmp6.h> | |
197 | ||
198 | #ifdef HAVE_NETINET6_ND6_H | |
199 | #include <netinet6/nd6.h> | |
200 | #endif /* HAVE_NETINET6_ND6_H */ | |
201 | ||
202 | /* Some systems do not define UINT32_MAX, etc.. from inttypes.h | |
203 | * e.g. this makes life easier for FBSD 4.11 users. | |
204 | */ | |
205 | #ifndef INT8_MAX | |
206 | #define INT8_MAX (127) | |
207 | #endif | |
208 | #ifndef INT16_MAX | |
209 | #define INT16_MAX (32767) | |
210 | #endif | |
211 | #ifndef INT32_MAX | |
212 | #define INT32_MAX (2147483647) | |
213 | #endif | |
214 | #ifndef UINT8_MAX | |
215 | #define UINT8_MAX (255U) | |
216 | #endif | |
217 | #ifndef UINT16_MAX | |
218 | #define UINT16_MAX (65535U) | |
219 | #endif | |
220 | #ifndef UINT32_MAX | |
221 | #define UINT32_MAX (4294967295U) | |
222 | #endif | |
223 | ||
224 | #ifdef HAVE_GLIBC_BACKTRACE | |
225 | #include <execinfo.h> | |
226 | #endif /* HAVE_GLIBC_BACKTRACE */ | |
227 | ||
228 | /* Local includes: */ | |
229 | #if !(defined(__GNUC__) || defined(VTYSH_EXTRACT_PL)) | |
230 | #define __attribute__(x) | |
231 | #endif /* !__GNUC__ || VTYSH_EXTRACT_PL */ | |
232 | ||
233 | #include "zassert.h" | |
234 | ||
235 | #ifndef HAVE_STRLCAT | |
236 | size_t strlcat(char *__restrict dest, | |
237 | const char *__restrict src, size_t destsize); | |
238 | #endif | |
239 | #ifndef HAVE_STRLCPY | |
240 | size_t strlcpy(char *__restrict dest, | |
241 | const char *__restrict src, size_t destsize); | |
242 | #endif | |
243 | ||
244 | /* GCC have printf type attribute check. */ | |
245 | #ifdef __GNUC__ | |
246 | #define PRINTF_ATTRIBUTE(a,b) __attribute__ ((__format__ (__printf__, a, b))) | |
247 | #else | |
248 | #define PRINTF_ATTRIBUTE(a,b) | |
249 | #endif /* __GNUC__ */ | |
250 | ||
251 | /* | |
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. | |
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 | ||
268 | /* | |
269 | * CMSG_SPACE and CMSG_LEN are required in RFC3542, but were new in that | |
270 | * version. | |
271 | */ | |
272 | #ifndef CMSG_SPACE | |
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 */ | |
277 | ||
278 | ||
279 | #ifndef CMSG_LEN | |
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 */ | |
283 | ||
284 | ||
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) | |
288 | struct in_pktinfo { | |
289 | int ipi_ifindex; | |
290 | struct in_addr ipi_spec_dst; | |
291 | struct in_addr ipi_addr; | |
292 | }; | |
293 | #endif | |
294 | ||
295 | /* | |
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. | |
301 | * OpenBSD: network byte order, apart from older versions which are as per | |
302 | * *BSD | |
303 | */ | |
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 | |
310 | #endif | |
311 | ||
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 | |
323 | #else /* !WORDS_BIGENDIAN */ | |
324 | #define BYTE_ORDER LITTLE_ENDIAN | |
325 | #endif /* WORDS_BIGENDIAN */ | |
326 | ||
327 | #endif /* ndef BYTE_ORDER */ | |
328 | ||
329 | /* MAX / MIN are not commonly defined, but useful */ | |
330 | /* note: glibc sys/param.h has #define MIN(a,b) (((a)<(b))?(a):(b)) */ | |
331 | #ifdef MAX | |
332 | #undef MAX | |
333 | #endif | |
334 | #define MAX(a, b) \ | |
335 | ({ \ | |
336 | typeof(a) _max_a = (a); \ | |
337 | typeof(b) _max_b = (b); \ | |
338 | _max_a > _max_b ? _max_a : _max_b; \ | |
339 | }) | |
340 | #ifdef MIN | |
341 | #undef MIN | |
342 | #endif | |
343 | #define MIN(a, b) \ | |
344 | ({ \ | |
345 | typeof(a) _min_a = (a); \ | |
346 | typeof(b) _min_b = (b); \ | |
347 | _min_a < _min_b ? _min_a : _min_b; \ | |
348 | }) | |
349 | ||
350 | #ifndef offsetof | |
351 | #ifdef __compiler_offsetof | |
352 | #define offsetof(TYPE,MEMBER) __compiler_offsetof(TYPE,MEMBER) | |
353 | #else | |
354 | #define offsetof(TYPE, MEMBER) ((size_t) &((TYPE *)0)->MEMBER) | |
355 | #endif | |
356 | #endif | |
357 | ||
358 | #ifndef container_of | |
359 | #define container_of(ptr, type, member) \ | |
360 | ({ \ | |
361 | const typeof(((type *)0)->member) *__mptr = (ptr); \ | |
362 | (type *)((char *)__mptr - offsetof(type, member)); \ | |
363 | }) | |
364 | #endif | |
365 | ||
366 | #define ZEBRA_NUM_OF(x) (sizeof (x) / sizeof (x[0])) | |
367 | ||
368 | /* For old definition. */ | |
369 | #ifndef IN6_ARE_ADDR_EQUAL | |
370 | #define IN6_ARE_ADDR_EQUAL IN6_IS_ADDR_EQUAL | |
371 | #endif /* IN6_ARE_ADDR_EQUAL */ | |
372 | ||
373 | /* default zebra TCP port for zclient */ | |
374 | #define ZEBRA_PORT 2600 | |
375 | ||
376 | /* Marker value used in new Zserv, in the byte location corresponding | |
377 | * the command value in the old zserv header. To allow old and new | |
378 | * Zserv headers to be distinguished from each other. | |
379 | */ | |
380 | #define ZEBRA_HEADER_MARKER 254 | |
381 | ||
382 | /* | |
383 | * The compiler.h header is used for anyone using the CPP_NOTICE | |
384 | * since this is universally needed, let's add it to zebra.h | |
385 | */ | |
386 | #include "compiler.h" | |
387 | ||
388 | /* Zebra route's types are defined in route_types.h */ | |
389 | #include "route_types.h" | |
390 | ||
391 | /* Note: whenever a new route-type or zserv-command is added the | |
392 | * corresponding {command,route}_types[] table in lib/log.c MUST be | |
393 | * updated! */ | |
394 | ||
395 | /* Map a route type to a string. For example, ZEBRA_ROUTE_RIPNG -> "ripng". */ | |
396 | extern const char *zebra_route_string(unsigned int route_type); | |
397 | /* Map a route type to a char. For example, ZEBRA_ROUTE_RIPNG -> 'R'. */ | |
398 | extern char zebra_route_char(unsigned int route_type); | |
399 | /* Map a zserv command type to the same string, | |
400 | * e.g. ZEBRA_INTERFACE_ADD -> "ZEBRA_INTERFACE_ADD" */ | |
401 | /* Map a protocol name to its number. e.g. ZEBRA_ROUTE_BGP->9*/ | |
402 | extern int proto_name2num(const char *s); | |
403 | /* Map redistribute X argument to protocol number. | |
404 | * unlike proto_name2num, this accepts shorthands and takes | |
405 | * an AFI value to restrict input */ | |
406 | extern int proto_redistnum(int afi, const char *s); | |
407 | ||
408 | extern const char *zserv_command_string(unsigned int command); | |
409 | ||
410 | #define strmatch(a,b) (!strcmp((a), (b))) | |
411 | ||
412 | /* Zebra message flags */ | |
413 | ||
414 | /* | |
415 | * Cause Zebra to consider this routes nexthops recursively | |
416 | */ | |
417 | #define ZEBRA_FLAG_ALLOW_RECURSION 0x01 | |
418 | /* | |
419 | * This is a route that is read in on startup that was left around | |
420 | * from a previous run of FRR | |
421 | */ | |
422 | #define ZEBRA_FLAG_SELFROUTE 0x02 | |
423 | /* | |
424 | * This flag is used to tell Zebra that the BGP route being passed | |
425 | * down is a IBGP route | |
426 | */ | |
427 | #define ZEBRA_FLAG_IBGP 0x04 | |
428 | /* | |
429 | * This is a route that has been selected for FIB installation. | |
430 | * This flag is set in zebra and can be passed up to routing daemons | |
431 | */ | |
432 | #define ZEBRA_FLAG_SELECTED 0x08 | |
433 | /* | |
434 | * This is a route that we are telling Zebra that this route *must* | |
435 | * win and will be installed even over ZEBRA_FLAG_SELECTED | |
436 | */ | |
437 | #define ZEBRA_FLAG_FIB_OVERRIDE 0x10 | |
438 | /* | |
439 | * This flag tells Zebra that the route is a EVPN route and should | |
440 | * be treated specially | |
441 | */ | |
442 | #define ZEBRA_FLAG_EVPN_ROUTE 0x20 | |
443 | /* | |
444 | * This flag tells Zebra that it should treat the distance passed | |
445 | * down as an additional discriminator for route selection of the | |
446 | * route entry. This mainly is used for backup static routes. | |
447 | */ | |
448 | #define ZEBRA_FLAG_RR_USE_DISTANCE 0x40 | |
449 | /* | |
450 | * This flag tells Zebra that the passed down route is ONLINK and the | |
451 | * kernel install flag for it should be turned on | |
452 | */ | |
453 | #define ZEBRA_FLAG_ONLINK 0x80 | |
454 | ||
455 | #ifndef INADDR_LOOPBACK | |
456 | #define INADDR_LOOPBACK 0x7f000001 /* Internet address 127.0.0.1. */ | |
457 | #endif | |
458 | ||
459 | /* Address family numbers from RFC1700. */ | |
460 | typedef enum { AFI_IP = 1, AFI_IP6 = 2, AFI_L2VPN = 3, AFI_MAX = 4 } afi_t; | |
461 | ||
462 | /* Subsequent Address Family Identifier. */ | |
463 | typedef enum { | |
464 | SAFI_UNICAST = 1, | |
465 | SAFI_MULTICAST = 2, | |
466 | SAFI_MPLS_VPN = 3, | |
467 | SAFI_ENCAP = 4, | |
468 | SAFI_EVPN = 5, | |
469 | SAFI_LABELED_UNICAST = 6, | |
470 | SAFI_FLOWSPEC = 7, | |
471 | SAFI_MAX = 8 | |
472 | } safi_t; | |
473 | ||
474 | /* | |
475 | * The above AFI and SAFI definitions are for internal use. The protocol | |
476 | * definitions (IANA values) as for example used in BGP protocol packets | |
477 | * are defined below and these will get mapped to/from the internal values | |
478 | * in the appropriate places. | |
479 | * The rationale is that the protocol (IANA) values may be sparse and are | |
480 | * not optimal for use in data-structure sizing. | |
481 | * Note: Only useful (i.e., supported) values are defined below. | |
482 | */ | |
483 | typedef enum { | |
484 | IANA_AFI_RESERVED = 0, | |
485 | IANA_AFI_IPV4 = 1, | |
486 | IANA_AFI_IPV6 = 2, | |
487 | IANA_AFI_L2VPN = 25, | |
488 | IANA_AFI_IPMR = 128, | |
489 | IANA_AFI_IP6MR = 129 | |
490 | } iana_afi_t; | |
491 | ||
492 | typedef enum { | |
493 | IANA_SAFI_RESERVED = 0, | |
494 | IANA_SAFI_UNICAST = 1, | |
495 | IANA_SAFI_MULTICAST = 2, | |
496 | IANA_SAFI_LABELED_UNICAST = 4, | |
497 | IANA_SAFI_ENCAP = 7, | |
498 | IANA_SAFI_EVPN = 70, | |
499 | IANA_SAFI_MPLS_VPN = 128, | |
500 | IANA_SAFI_FLOWSPEC = 133 | |
501 | } iana_safi_t; | |
502 | ||
503 | /* Default Administrative Distance of each protocol. */ | |
504 | #define ZEBRA_KERNEL_DISTANCE_DEFAULT 0 | |
505 | #define ZEBRA_CONNECT_DISTANCE_DEFAULT 0 | |
506 | #define ZEBRA_STATIC_DISTANCE_DEFAULT 1 | |
507 | #define ZEBRA_RIP_DISTANCE_DEFAULT 120 | |
508 | #define ZEBRA_RIPNG_DISTANCE_DEFAULT 120 | |
509 | #define ZEBRA_OSPF_DISTANCE_DEFAULT 110 | |
510 | #define ZEBRA_OSPF6_DISTANCE_DEFAULT 110 | |
511 | #define ZEBRA_ISIS_DISTANCE_DEFAULT 115 | |
512 | #define ZEBRA_IBGP_DISTANCE_DEFAULT 200 | |
513 | #define ZEBRA_EBGP_DISTANCE_DEFAULT 20 | |
514 | #define ZEBRA_TABLE_DISTANCE_DEFAULT 15 | |
515 | ||
516 | /* Flag manipulation macros. */ | |
517 | #define CHECK_FLAG(V,F) ((V) & (F)) | |
518 | #define SET_FLAG(V,F) (V) |= (F) | |
519 | #define UNSET_FLAG(V,F) (V) &= ~(F) | |
520 | #define RESET_FLAG(V) (V) = 0 | |
521 | #define COND_FLAG(V, F, C) ((C) ? (SET_FLAG(V, F)) : (UNSET_FLAG(V, F))) | |
522 | ||
523 | /* Atomic flag manipulation macros. */ | |
524 | #define CHECK_FLAG_ATOMIC(PV, F) \ | |
525 | ((atomic_load_explicit(PV, memory_order_seq_cst)) & (F)) | |
526 | #define SET_FLAG_ATOMIC(PV, F) \ | |
527 | ((atomic_fetch_or_explicit(PV, (F), memory_order_seq_cst))) | |
528 | #define UNSET_FLAG_ATOMIC(PV, F) \ | |
529 | ((atomic_fetch_and_explicit(PV, ~(F), memory_order_seq_cst))) | |
530 | #define RESET_FLAG_ATOMIC(PV) \ | |
531 | ((atomic_store_explicit(PV, 0, memory_order_seq_cst))) | |
532 | ||
533 | /* Zebra types. Used in Zserv message header. */ | |
534 | typedef uint16_t zebra_size_t; | |
535 | typedef uint16_t zebra_command_t; | |
536 | ||
537 | /* VRF ID type. */ | |
538 | typedef uint32_t vrf_id_t; | |
539 | ||
540 | typedef uint32_t route_tag_t; | |
541 | #define ROUTE_TAG_MAX UINT32_MAX | |
542 | #define ROUTE_TAG_PRI PRIu32 | |
543 | ||
544 | static inline afi_t afi_iana2int(iana_afi_t afi) | |
545 | { | |
546 | switch (afi) { | |
547 | case IANA_AFI_IPV4: | |
548 | return AFI_IP; | |
549 | case IANA_AFI_IPV6: | |
550 | return AFI_IP6; | |
551 | case IANA_AFI_L2VPN: | |
552 | return AFI_L2VPN; | |
553 | default: | |
554 | return AFI_MAX; | |
555 | } | |
556 | } | |
557 | ||
558 | static inline iana_afi_t afi_int2iana(afi_t afi) | |
559 | { | |
560 | switch (afi) { | |
561 | case AFI_IP: | |
562 | return IANA_AFI_IPV4; | |
563 | case AFI_IP6: | |
564 | return IANA_AFI_IPV6; | |
565 | case AFI_L2VPN: | |
566 | return IANA_AFI_L2VPN; | |
567 | default: | |
568 | return IANA_AFI_RESERVED; | |
569 | } | |
570 | } | |
571 | ||
572 | static inline safi_t safi_iana2int(iana_safi_t safi) | |
573 | { | |
574 | switch (safi) { | |
575 | case IANA_SAFI_UNICAST: | |
576 | return SAFI_UNICAST; | |
577 | case IANA_SAFI_MULTICAST: | |
578 | return SAFI_MULTICAST; | |
579 | case IANA_SAFI_MPLS_VPN: | |
580 | return SAFI_MPLS_VPN; | |
581 | case IANA_SAFI_ENCAP: | |
582 | return SAFI_ENCAP; | |
583 | case IANA_SAFI_EVPN: | |
584 | return SAFI_EVPN; | |
585 | case IANA_SAFI_LABELED_UNICAST: | |
586 | return SAFI_LABELED_UNICAST; | |
587 | case IANA_SAFI_FLOWSPEC: | |
588 | return SAFI_FLOWSPEC; | |
589 | default: | |
590 | return SAFI_MAX; | |
591 | } | |
592 | } | |
593 | ||
594 | static inline iana_safi_t safi_int2iana(safi_t safi) | |
595 | { | |
596 | switch (safi) { | |
597 | case SAFI_UNICAST: | |
598 | return IANA_SAFI_UNICAST; | |
599 | case SAFI_MULTICAST: | |
600 | return IANA_SAFI_MULTICAST; | |
601 | case SAFI_MPLS_VPN: | |
602 | return IANA_SAFI_MPLS_VPN; | |
603 | case SAFI_ENCAP: | |
604 | return IANA_SAFI_ENCAP; | |
605 | case SAFI_EVPN: | |
606 | return IANA_SAFI_EVPN; | |
607 | case SAFI_LABELED_UNICAST: | |
608 | return IANA_SAFI_LABELED_UNICAST; | |
609 | case SAFI_FLOWSPEC: | |
610 | return IANA_SAFI_FLOWSPEC; | |
611 | default: | |
612 | return IANA_SAFI_RESERVED; | |
613 | } | |
614 | } | |
615 | ||
616 | #endif /* _ZEBRA_H */ |