Annotation of embedaddon/quagga/lib/zebra.h, revision 1.1
1.1 ! misho 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
! 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
! 19: 02111-1307, USA. */
! 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: #ifdef SUNOS_5
! 29: #define _XPG4_2
! 30: #define __EXTENSIONS__
! 31: typedef unsigned int u_int32_t;
! 32: typedef unsigned short u_int16_t;
! 33: typedef unsigned char u_int8_t;
! 34: #endif /* SUNOS_5 */
! 35:
! 36: #ifndef HAVE_SOCKLEN_T
! 37: typedef int socklen_t;
! 38: #endif /* HAVE_SOCKLEN_T */
! 39:
! 40: #include <unistd.h>
! 41: #include <stdio.h>
! 42: #include <stdlib.h>
! 43: #include <ctype.h>
! 44: #include <errno.h>
! 45: #include <fcntl.h>
! 46: #include <signal.h>
! 47: #include <string.h>
! 48: #include <pwd.h>
! 49: #include <grp.h>
! 50: #ifdef HAVE_STROPTS_H
! 51: #include <stropts.h>
! 52: #endif /* HAVE_STROPTS_H */
! 53: #include <sys/fcntl.h>
! 54: #ifdef HAVE_SYS_SELECT_H
! 55: #include <sys/select.h>
! 56: #endif /* HAVE_SYS_SELECT_H */
! 57: #include <sys/stat.h>
! 58: #include <sys/types.h>
! 59: #include <sys/param.h>
! 60: #ifdef HAVE_SYS_SYSCTL_H
! 61: #ifdef GNU_LINUX
! 62: #include <linux/types.h>
! 63: #endif
! 64: #include <sys/sysctl.h>
! 65: #endif /* HAVE_SYS_SYSCTL_H */
! 66: #include <sys/ioctl.h>
! 67: #ifdef HAVE_SYS_CONF_H
! 68: #include <sys/conf.h>
! 69: #endif /* HAVE_SYS_CONF_H */
! 70: #ifdef HAVE_SYS_KSYM_H
! 71: #include <sys/ksym.h>
! 72: #endif /* HAVE_SYS_KSYM_H */
! 73: #include <syslog.h>
! 74: #ifdef TIME_WITH_SYS_TIME
! 75: # include <sys/time.h>
! 76: # include <time.h>
! 77: #else
! 78: # ifdef HAVE_SYS_TIME_H
! 79: # include <sys/time.h>
! 80: # else
! 81: # include <time.h>
! 82: # endif
! 83: #endif /* TIME_WITH_SYS_TIME */
! 84: #include <sys/uio.h>
! 85: #include <sys/utsname.h>
! 86: #ifdef HAVE_RUSAGE
! 87: #include <sys/resource.h>
! 88: #endif /* HAVE_RUSAGE */
! 89: #ifdef HAVE_LIMITS_H
! 90: #include <limits.h>
! 91: #endif /* HAVE_LIMITS_H */
! 92: #ifdef HAVE_INTTYPES_H
! 93: #include <inttypes.h>
! 94: #endif /* HAVE_INTTYPES_H */
! 95:
! 96: /* machine dependent includes */
! 97: #ifdef SUNOS_5
! 98: #include <strings.h>
! 99: #endif /* SUNOS_5 */
! 100:
! 101: /* machine dependent includes */
! 102: #ifdef HAVE_LINUX_VERSION_H
! 103: #include <linux/version.h>
! 104: #endif /* HAVE_LINUX_VERSION_H */
! 105:
! 106: #ifdef HAVE_ASM_TYPES_H
! 107: #include <asm/types.h>
! 108: #endif /* HAVE_ASM_TYPES_H */
! 109:
! 110: /* misc include group */
! 111: #include <stdarg.h>
! 112: #if !(defined(__STDC_VERSION__) && __STDC_VERSION__ >= 199901L)
! 113: /* Not C99; do we need to define va_copy? */
! 114: #ifndef va_copy
! 115: #ifdef __va_copy
! 116: #define va_copy(DST,SRC) __va_copy(DST,SRC)
! 117: #else
! 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 */
! 125: #endif /* !C99 */
! 126:
! 127:
! 128: #ifdef HAVE_LCAPS
! 129: #include <sys/capability.h>
! 130: #include <sys/prctl.h>
! 131: #endif /* HAVE_LCAPS */
! 132:
! 133: #ifdef HAVE_SOLARIS_CAPABILITIES
! 134: #include <priv.h>
! 135: #endif /* HAVE_SOLARIS_CAPABILITIES */
! 136:
! 137: /* network include group */
! 138:
! 139: #include <sys/socket.h>
! 140:
! 141: #ifdef HAVE_SYS_SOCKIO_H
! 142: #include <sys/sockio.h>
! 143: #endif /* HAVE_SYS_SOCKIO_H */
! 144:
! 145: #ifdef HAVE_NETINET_IN_H
! 146: #include <netinet/in.h>
! 147: #endif /* HAVE_NETINET_IN_H */
! 148: #include <netinet/in_systm.h>
! 149: #include <netinet/ip.h>
! 150: #include <netinet/tcp.h>
! 151:
! 152: #ifdef HAVE_NET_NETOPT_H
! 153: #include <net/netopt.h>
! 154: #endif /* HAVE_NET_NETOPT_H */
! 155:
! 156: #include <net/if.h>
! 157:
! 158: #ifdef HAVE_NET_IF_DL_H
! 159: #include <net/if_dl.h>
! 160: #endif /* HAVE_NET_IF_DL_H */
! 161:
! 162: #ifdef HAVE_NET_IF_VAR_H
! 163: #include <net/if_var.h>
! 164: #endif /* HAVE_NET_IF_VAR_H */
! 165:
! 166: #ifdef HAVE_NET_ROUTE_H
! 167: #include <net/route.h>
! 168: #endif /* HAVE_NET_ROUTE_H */
! 169:
! 170: #ifdef HAVE_NETLINK
! 171: #include <linux/netlink.h>
! 172: #include <linux/rtnetlink.h>
! 173: #include <linux/filter.h>
! 174: #include <stddef.h>
! 175: #else
! 176: #define RT_TABLE_MAIN 0
! 177: #endif /* HAVE_NETLINK */
! 178:
! 179: #ifdef HAVE_NETDB_H
! 180: #include <netdb.h>
! 181: #endif /* HAVE_NETDB_H */
! 182:
! 183: #include <arpa/inet.h>
! 184:
! 185: #ifdef HAVE_INET_ND_H
! 186: #include <inet/nd.h>
! 187: #endif /* HAVE_INET_ND_H */
! 188:
! 189: #ifdef HAVE_NETINET_IN_VAR_H
! 190: #include <netinet/in_var.h>
! 191: #endif /* HAVE_NETINET_IN_VAR_H */
! 192:
! 193: #ifdef HAVE_NETINET6_IN6_VAR_H
! 194: #include <netinet6/in6_var.h>
! 195: #endif /* HAVE_NETINET6_IN6_VAR_H */
! 196:
! 197: #ifdef HAVE_NETINET_IN6_VAR_H
! 198: #include <netinet/in6_var.h>
! 199: #endif /* HAVE_NETINET_IN6_VAR_H */
! 200:
! 201: #ifdef HAVE_NETINET6_IN_H
! 202: #include <netinet6/in.h>
! 203: #endif /* HAVE_NETINET6_IN_H */
! 204:
! 205:
! 206: #ifdef HAVE_NETINET6_IP6_H
! 207: #include <netinet6/ip6.h>
! 208: #endif /* HAVE_NETINET6_IP6_H */
! 209:
! 210: #ifdef HAVE_NETINET_ICMP6_H
! 211: #include <netinet/icmp6.h>
! 212: #endif /* HAVE_NETINET_ICMP6_H */
! 213:
! 214: #ifdef HAVE_NETINET6_ND6_H
! 215: #include <netinet6/nd6.h>
! 216: #endif /* HAVE_NETINET6_ND6_H */
! 217:
! 218: /* Some systems do not define UINT32_MAX, etc.. from inttypes.h
! 219: * e.g. this makes life easier for FBSD 4.11 users.
! 220: */
! 221: #ifndef INT8_MAX
! 222: #define INT8_MAX (127)
! 223: #endif
! 224: #ifndef INT16_MAX
! 225: #define INT16_MAX (32767)
! 226: #endif
! 227: #ifndef INT32_MAX
! 228: #define INT32_MAX (2147483647)
! 229: #endif
! 230: #ifndef UINT8_MAX
! 231: #define UINT8_MAX (255U)
! 232: #endif
! 233: #ifndef UINT16_MAX
! 234: #define UINT16_MAX (65535U)
! 235: #endif
! 236: #ifndef UINT32_MAX
! 237: #define UINT32_MAX (4294967295U)
! 238: #endif
! 239:
! 240: #ifdef HAVE_GLIBC_BACKTRACE
! 241: #include <execinfo.h>
! 242: #endif /* HAVE_GLIBC_BACKTRACE */
! 243:
! 244: #ifdef BSDI_NRL
! 245:
! 246: #ifdef HAVE_NETINET6_IN6_H
! 247: #include <netinet6/in6.h>
! 248: #endif /* HAVE_NETINET6_IN6_H */
! 249:
! 250: #ifdef NRL
! 251: #include <netinet6/in6.h>
! 252: #endif /* NRL */
! 253:
! 254: #define IN6_ARE_ADDR_EQUAL IN6_IS_ADDR_EQUAL
! 255:
! 256: #endif /* BSDI_NRL */
! 257:
! 258: /* Local includes: */
! 259: #if !(defined(__GNUC__) || defined(VTYSH_EXTRACT_PL))
! 260: #define __attribute__(x)
! 261: #endif /* !__GNUC__ || VTYSH_EXTRACT_PL */
! 262:
! 263: #include "zassert.h"
! 264: #include "str.h"
! 265:
! 266:
! 267: #ifdef HAVE_BROKEN_CMSG_FIRSTHDR
! 268: /* This bug is present in Solaris 8 and pre-patch Solaris 9 <sys/socket.h>;
! 269: please refer to http://bugzilla.quagga.net/show_bug.cgi?id=142 */
! 270:
! 271: /* Check that msg_controllen is large enough. */
! 272: #define ZCMSG_FIRSTHDR(mhdr) \
! 273: (((size_t)((mhdr)->msg_controllen) >= sizeof(struct cmsghdr)) ? \
! 274: CMSG_FIRSTHDR(mhdr) : (struct cmsghdr *)NULL)
! 275:
! 276: #warning "CMSG_FIRSTHDR is broken on this platform, using a workaround"
! 277:
! 278: #else /* HAVE_BROKEN_CMSG_FIRSTHDR */
! 279: #define ZCMSG_FIRSTHDR(M) CMSG_FIRSTHDR(M)
! 280: #endif /* HAVE_BROKEN_CMSG_FIRSTHDR */
! 281:
! 282:
! 283:
! 284: /*
! 285: * RFC 3542 defines several macros for using struct cmsghdr.
! 286: * Here, we define those that are not present
! 287: */
! 288:
! 289: /*
! 290: * Internal defines, for use only in this file.
! 291: * These are likely wrong on other than ILP32 machines, so warn.
! 292: */
! 293: #ifndef _CMSG_DATA_ALIGN
! 294: #define _CMSG_DATA_ALIGN(n) (((n) + 3) & ~3)
! 295: #endif /* _CMSG_DATA_ALIGN */
! 296:
! 297: #ifndef _CMSG_HDR_ALIGN
! 298: #define _CMSG_HDR_ALIGN(n) (((n) + 3) & ~3)
! 299: #endif /* _CMSG_HDR_ALIGN */
! 300:
! 301: /*
! 302: * CMSG_SPACE and CMSG_LEN are required in RFC3542, but were new in that
! 303: * version.
! 304: */
! 305: #ifndef CMSG_SPACE
! 306: #define CMSG_SPACE(l) (_CMSG_DATA_ALIGN(sizeof(struct cmsghdr)) + \
! 307: _CMSG_HDR_ALIGN(l))
! 308: #warning "assuming 4-byte alignment for CMSG_SPACE"
! 309: #endif /* CMSG_SPACE */
! 310:
! 311:
! 312: #ifndef CMSG_LEN
! 313: #define CMSG_LEN(l) (_CMSG_DATA_ALIGN(sizeof(struct cmsghdr)) + (l))
! 314: #warning "assuming 4-byte alignment for CMSG_LEN"
! 315: #endif /* CMSG_LEN */
! 316:
! 317:
! 318: /* The definition of struct in_pktinfo is missing in old version of
! 319: GLIBC 2.1 (Redhat 6.1). */
! 320: #if defined (GNU_LINUX) && ! defined (HAVE_STRUCT_IN_PKTINFO)
! 321: struct in_pktinfo
! 322: {
! 323: int ipi_ifindex;
! 324: struct in_addr ipi_spec_dst;
! 325: struct in_addr ipi_addr;
! 326: };
! 327: #endif
! 328:
! 329: /*
! 330: * OSPF Fragmentation / fragmented writes
! 331: *
! 332: * ospfd can support writing fragmented packets, for cases where
! 333: * kernel will not fragment IP_HDRINCL and/or multicast destined
! 334: * packets (ie TTBOMK all kernels, BSD, SunOS, Linux). However,
! 335: * SunOS, probably BSD too, clobber the user supplied IP ID and IP
! 336: * flags fields, hence user-space fragmentation will not work.
! 337: * Only Linux is known to leave IP header unmolested.
! 338: * Further, fragmentation really should be done the kernel, which already
! 339: * supports it, and which avoids nasty IP ID state problems.
! 340: *
! 341: * Fragmentation of OSPF packets can be required on networks with router
! 342: * with many many interfaces active in one area, or on networks with links
! 343: * with low MTUs.
! 344: */
! 345: #ifdef GNU_LINUX
! 346: #define WANT_OSPF_WRITE_FRAGMENT
! 347: #endif
! 348:
! 349: /*
! 350: * IP_HDRINCL / struct ip byte order
! 351: *
! 352: * Linux: network byte order
! 353: * *BSD: network, except for length and offset. (cf Stevens)
! 354: * SunOS: nominally as per BSD. but bug: network order on LE.
! 355: * OpenBSD: network byte order, apart from older versions which are as per
! 356: * *BSD
! 357: */
! 358: #if defined(__NetBSD__) || defined(__FreeBSD__) \
! 359: || (defined(__OpenBSD__) && (OpenBSD < 200311)) \
! 360: || (defined(SUNOS_5) && defined(WORDS_BIGENDIAN))
! 361: #define HAVE_IP_HDRINCL_BSD_ORDER
! 362: #endif
! 363:
! 364: /* Define BYTE_ORDER, if not defined. Useful for compiler conditional
! 365: * code, rather than preprocessor conditional.
! 366: * Not all the world has this BSD define.
! 367: */
! 368: #ifndef BYTE_ORDER
! 369: #define BIG_ENDIAN 4321 /* least-significant byte first (vax, pc) */
! 370: #define LITTLE_ENDIAN 1234 /* most-significant byte first (IBM, net) */
! 371: #define PDP_ENDIAN 3412 /* LSB first in word, MSW first in long (pdp) */
! 372:
! 373: #if defined(WORDS_BIGENDIAN)
! 374: #define BYTE_ORDER BIG_ENDIAN
! 375: #else /* !WORDS_BIGENDIAN */
! 376: #define BYTE_ORDER LITTLE_ENDIAN
! 377: #endif /* WORDS_BIGENDIAN */
! 378:
! 379: #endif /* ndef BYTE_ORDER */
! 380:
! 381: /* MAX / MIN are not commonly defined, but useful */
! 382: #ifndef MAX
! 383: #define MAX(a, b) ((a) > (b) ? (a) : (b))
! 384: #endif
! 385: #ifndef MIN
! 386: #define MIN(a, b) ((a) < (b) ? (a) : (b))
! 387: #endif
! 388:
! 389: /* For old definition. */
! 390: #ifndef IN6_ARE_ADDR_EQUAL
! 391: #define IN6_ARE_ADDR_EQUAL IN6_IS_ADDR_EQUAL
! 392: #endif /* IN6_ARE_ADDR_EQUAL */
! 393:
! 394: /* default zebra TCP port for zclient */
! 395: #define ZEBRA_PORT 2600
! 396:
! 397: /* Zebra message types. */
! 398: #define ZEBRA_INTERFACE_ADD 1
! 399: #define ZEBRA_INTERFACE_DELETE 2
! 400: #define ZEBRA_INTERFACE_ADDRESS_ADD 3
! 401: #define ZEBRA_INTERFACE_ADDRESS_DELETE 4
! 402: #define ZEBRA_INTERFACE_UP 5
! 403: #define ZEBRA_INTERFACE_DOWN 6
! 404: #define ZEBRA_IPV4_ROUTE_ADD 7
! 405: #define ZEBRA_IPV4_ROUTE_DELETE 8
! 406: #define ZEBRA_IPV6_ROUTE_ADD 9
! 407: #define ZEBRA_IPV6_ROUTE_DELETE 10
! 408: #define ZEBRA_REDISTRIBUTE_ADD 11
! 409: #define ZEBRA_REDISTRIBUTE_DELETE 12
! 410: #define ZEBRA_REDISTRIBUTE_DEFAULT_ADD 13
! 411: #define ZEBRA_REDISTRIBUTE_DEFAULT_DELETE 14
! 412: #define ZEBRA_IPV4_NEXTHOP_LOOKUP 15
! 413: #define ZEBRA_IPV6_NEXTHOP_LOOKUP 16
! 414: #define ZEBRA_IPV4_IMPORT_LOOKUP 17
! 415: #define ZEBRA_IPV6_IMPORT_LOOKUP 18
! 416: #define ZEBRA_INTERFACE_RENAME 19
! 417: #define ZEBRA_ROUTER_ID_ADD 20
! 418: #define ZEBRA_ROUTER_ID_DELETE 21
! 419: #define ZEBRA_ROUTER_ID_UPDATE 22
! 420: #define ZEBRA_MESSAGE_MAX 23
! 421:
! 422: /* Marker value used in new Zserv, in the byte location corresponding
! 423: * the command value in the old zserv header. To allow old and new
! 424: * Zserv headers to be distinguished from each other.
! 425: */
! 426: #define ZEBRA_HEADER_MARKER 255
! 427:
! 428: /* Zebra route's types. */
! 429: #define ZEBRA_ROUTE_SYSTEM 0
! 430: #define ZEBRA_ROUTE_KERNEL 1
! 431: #define ZEBRA_ROUTE_CONNECT 2
! 432: #define ZEBRA_ROUTE_STATIC 3
! 433: #define ZEBRA_ROUTE_RIP 4
! 434: #define ZEBRA_ROUTE_RIPNG 5
! 435: #define ZEBRA_ROUTE_OSPF 6
! 436: #define ZEBRA_ROUTE_OSPF6 7
! 437: #define ZEBRA_ROUTE_ISIS 8
! 438: #define ZEBRA_ROUTE_BGP 9
! 439: #define ZEBRA_ROUTE_HSLS 10
! 440: #define ZEBRA_ROUTE_MAX 11
! 441:
! 442: /* Note: whenever a new route-type or zserv-command is added the
! 443: * corresponding {command,route}_types[] table in lib/log.c MUST be
! 444: * updated! */
! 445:
! 446: /* Map a route type to a string. For example, ZEBRA_ROUTE_RIPNG -> "ripng". */
! 447: extern const char *zebra_route_string(unsigned int route_type);
! 448: /* Map a route type to a char. For example, ZEBRA_ROUTE_RIPNG -> 'R'. */
! 449: extern char zebra_route_char(unsigned int route_type);
! 450: /* Map a zserv command type to the same string,
! 451: * e.g. ZEBRA_INTERFACE_ADD -> "ZEBRA_INTERFACE_ADD" */
! 452: /* Map a protocol name to its number. e.g. ZEBRA_ROUTE_BGP->9*/
! 453: extern int proto_name2num(const char *s);
! 454:
! 455: extern const char *zserv_command_string (unsigned int command);
! 456:
! 457: /* Zebra's family types. */
! 458: #define ZEBRA_FAMILY_IPV4 1
! 459: #define ZEBRA_FAMILY_IPV6 2
! 460: #define ZEBRA_FAMILY_MAX 3
! 461:
! 462: /* Error codes of zebra. */
! 463: #define ZEBRA_ERR_NOERROR 0
! 464: #define ZEBRA_ERR_RTEXIST -1
! 465: #define ZEBRA_ERR_RTUNREACH -2
! 466: #define ZEBRA_ERR_EPERM -3
! 467: #define ZEBRA_ERR_RTNOEXIST -4
! 468: #define ZEBRA_ERR_KERNEL -5
! 469:
! 470: /* Zebra message flags */
! 471: #define ZEBRA_FLAG_INTERNAL 0x01
! 472: #define ZEBRA_FLAG_SELFROUTE 0x02
! 473: #define ZEBRA_FLAG_BLACKHOLE 0x04
! 474: #define ZEBRA_FLAG_IBGP 0x08
! 475: #define ZEBRA_FLAG_SELECTED 0x10
! 476: #define ZEBRA_FLAG_CHANGED 0x20
! 477: #define ZEBRA_FLAG_STATIC 0x40
! 478: #define ZEBRA_FLAG_REJECT 0x80
! 479:
! 480: /* Zebra nexthop flags. */
! 481: #define ZEBRA_NEXTHOP_IFINDEX 1
! 482: #define ZEBRA_NEXTHOP_IFNAME 2
! 483: #define ZEBRA_NEXTHOP_IPV4 3
! 484: #define ZEBRA_NEXTHOP_IPV4_IFINDEX 4
! 485: #define ZEBRA_NEXTHOP_IPV4_IFNAME 5
! 486: #define ZEBRA_NEXTHOP_IPV6 6
! 487: #define ZEBRA_NEXTHOP_IPV6_IFINDEX 7
! 488: #define ZEBRA_NEXTHOP_IPV6_IFNAME 8
! 489: #define ZEBRA_NEXTHOP_BLACKHOLE 9
! 490:
! 491: #ifndef INADDR_LOOPBACK
! 492: #define INADDR_LOOPBACK 0x7f000001 /* Internet address 127.0.0.1. */
! 493: #endif
! 494:
! 495: /* Address family numbers from RFC1700. */
! 496: #define AFI_IP 1
! 497: #define AFI_IP6 2
! 498: #define AFI_MAX 3
! 499:
! 500: /* Subsequent Address Family Identifier. */
! 501: #define SAFI_UNICAST 1
! 502: #define SAFI_MULTICAST 2
! 503: #define SAFI_UNICAST_MULTICAST 3
! 504: #define SAFI_MPLS_VPN 4
! 505: #define SAFI_MAX 5
! 506:
! 507: /* Filter direction. */
! 508: #define FILTER_IN 0
! 509: #define FILTER_OUT 1
! 510: #define FILTER_MAX 2
! 511:
! 512: /* Default Administrative Distance of each protocol. */
! 513: #define ZEBRA_KERNEL_DISTANCE_DEFAULT 0
! 514: #define ZEBRA_CONNECT_DISTANCE_DEFAULT 0
! 515: #define ZEBRA_STATIC_DISTANCE_DEFAULT 1
! 516: #define ZEBRA_RIP_DISTANCE_DEFAULT 120
! 517: #define ZEBRA_RIPNG_DISTANCE_DEFAULT 120
! 518: #define ZEBRA_OSPF_DISTANCE_DEFAULT 110
! 519: #define ZEBRA_OSPF6_DISTANCE_DEFAULT 110
! 520: #define ZEBRA_ISIS_DISTANCE_DEFAULT 115
! 521: #define ZEBRA_IBGP_DISTANCE_DEFAULT 200
! 522: #define ZEBRA_EBGP_DISTANCE_DEFAULT 20
! 523:
! 524: /* Flag manipulation macros. */
! 525: #define CHECK_FLAG(V,F) ((V) & (F))
! 526: #define SET_FLAG(V,F) (V) |= (F)
! 527: #define UNSET_FLAG(V,F) (V) &= ~(F)
! 528:
! 529: /* AFI and SAFI type. */
! 530: typedef u_int16_t afi_t;
! 531: typedef u_int8_t safi_t;
! 532:
! 533: /* Zebra types. Used in Zserv message header. */
! 534: typedef u_int16_t zebra_size_t;
! 535: typedef u_int16_t zebra_command_t;
! 536:
! 537: /* FIFO -- first in first out structure and macros. */
! 538: struct fifo
! 539: {
! 540: struct fifo *next;
! 541: struct fifo *prev;
! 542: };
! 543:
! 544: #define FIFO_INIT(F) \
! 545: do { \
! 546: struct fifo *Xfifo = (struct fifo *)(F); \
! 547: Xfifo->next = Xfifo->prev = Xfifo; \
! 548: } while (0)
! 549:
! 550: #define FIFO_ADD(F,N) \
! 551: do { \
! 552: struct fifo *Xfifo = (struct fifo *)(F); \
! 553: struct fifo *Xnode = (struct fifo *)(N); \
! 554: Xnode->next = Xfifo; \
! 555: Xnode->prev = Xfifo->prev; \
! 556: Xfifo->prev = Xfifo->prev->next = Xnode; \
! 557: } while (0)
! 558:
! 559: #define FIFO_DEL(N) \
! 560: do { \
! 561: struct fifo *Xnode = (struct fifo *)(N); \
! 562: Xnode->prev->next = Xnode->next; \
! 563: Xnode->next->prev = Xnode->prev; \
! 564: } while (0)
! 565:
! 566: #define FIFO_HEAD(F) \
! 567: ((((struct fifo *)(F))->next == (struct fifo *)(F)) \
! 568: ? NULL : (F)->next)
! 569:
! 570: #define FIFO_EMPTY(F) \
! 571: (((struct fifo *)(F))->next == (struct fifo *)(F))
! 572:
! 573: #define FIFO_TOP(F) \
! 574: (FIFO_EMPTY(F) ? NULL : ((struct fifo *)(F))->next)
! 575:
! 576: #endif /* _ZEBRA_H */
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