[mirror_frr.git] / lib / zebra.h

/* Zebra common header.
   Copyright (C) 1997, 1998, 1999, 2000, 2001, 2002 Kunihiro Ishiguro

This file is part of GNU Zebra.

GNU Zebra is free software; you can redistribute it and/or modify it
under the terms of the GNU General Public License as published by the
Free Software Foundation; either version 2, or (at your option) any
later version.

GNU Zebra is distributed in the hope that it will be useful, but
WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
General Public License for more details.

You should have received a copy of the GNU General Public License
along with GNU Zebra; see the file COPYING.  If not, write to the Free
Software Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA
02111-1307, USA.  */

#ifndef _ZEBRA_H
#define _ZEBRA_H

#ifdef HAVE_CONFIG_H
#include "config.h"
#endif /* HAVE_CONFIG_H */

#ifdef SUNOS_5
#define _XPG4_2
#define __EXTENSIONS__
typedef unsigned int    u_int32_t;
typedef unsigned short  u_int16_t;
typedef unsigned char   u_int8_t;
#endif /* SUNOS_5 */

#ifndef HAVE_SOCKLEN_T
typedef int socklen_t;
#endif /* HAVE_SOCKLEN_T */

#include <unistd.h>
#include <stdio.h>
#include <stdlib.h>
#include <ctype.h>
#include <errno.h>
#include <fcntl.h>
#include <signal.h>
#include <string.h>
#include <pwd.h>
#include <grp.h>
#ifdef HAVE_STROPTS_H
#include <stropts.h>
#endif /* HAVE_STROPTS_H */
#include <sys/fcntl.h>
#ifdef HAVE_SYS_SELECT_H
#include <sys/select.h>
#endif /* HAVE_SYS_SELECT_H */
#include <sys/stat.h>
#include <sys/time.h>
#include <sys/types.h>
#include <sys/param.h>
#ifdef HAVE_SYS_SYSCTL_H
#include <sys/sysctl.h>
#endif /* HAVE_SYS_SYSCTL_H */
#include <sys/ioctl.h>
#ifdef HAVE_SYS_CONF_H
#include <sys/conf.h>
#endif /* HAVE_SYS_CONF_H */
#ifdef HAVE_SYS_KSYM_H
#include <sys/ksym.h>
#endif /* HAVE_SYS_KSYM_H */
#include <syslog.h>
#include <time.h>
#include <sys/uio.h>
#include <sys/utsname.h>
#ifdef HAVE_RUSAGE
#include <sys/resource.h>
#endif /* HAVE_RUSAGE */
#ifdef HAVE_LIMITS_H
#include <limits.h>
#endif /* HAVE_LIMITS_H */

/* machine dependent includes */
#ifdef SUNOS_5
#include <strings.h>
#endif /* SUNOS_5 */

/* machine dependent includes */
#ifdef HAVE_LINUX_VERSION_H
#include <linux/version.h>
#endif /* HAVE_LINUX_VERSION_H */

#ifdef HAVE_ASM_TYPES_H
#include <asm/types.h>
#endif /* HAVE_ASM_TYPES_H */

/* misc include group */
#include <stdarg.h>
#include <assert.h>

#ifdef HAVE_LCAPS
#include <sys/capability.h>
#include <sys/prctl.h>
#endif /* HAVE_LCAPS */

/* network include group */

#include <sys/socket.h>

#ifdef HAVE_SYS_SOCKIO_H
#include <sys/sockio.h>
#endif /* HAVE_SYS_SOCKIO_H */

#ifdef HAVE_NETINET_IN_H
#include <netinet/in.h>
#endif /* HAVE_NETINET_IN_H */
#include <netinet/in_systm.h>
#include <netinet/ip.h>
#include <netinet/tcp.h>

#ifdef HAVE_NET_NETOPT_H
#include <net/netopt.h>
#endif /* HAVE_NET_NETOPT_H */

#include <net/if.h>

#ifdef HAVE_NET_IF_DL_H
#include <net/if_dl.h>
#endif /* HAVE_NET_IF_DL_H */

#ifdef HAVE_NET_IF_VAR_H
#include <net/if_var.h>
#endif /* HAVE_NET_IF_VAR_H */

#ifdef HAVE_NET_ROUTE_H
#include <net/route.h>
#endif /* HAVE_NET_ROUTE_H */

#ifdef HAVE_NETLINK
#include <linux/netlink.h>
#include <linux/rtnetlink.h>
#else
#define RT_TABLE_MAIN		0
#endif /* HAVE_NETLINK */

#ifdef HAVE_NETDB_H
#include <netdb.h>
#endif /* HAVE_NETDB_H */

#include <arpa/inet.h>
#include <arpa/telnet.h>

#ifdef HAVE_INET_ND_H
#include <inet/nd.h>
#endif /* HAVE_INET_ND_H */

#ifdef HAVE_NETINET_IN_VAR_H
#include <netinet/in_var.h>
#endif /* HAVE_NETINET_IN_VAR_H */

#ifdef HAVE_NETINET6_IN6_VAR_H
#include <netinet6/in6_var.h>
#endif /* HAVE_NETINET6_IN6_VAR_H */

#ifdef HAVE_NETINET_IN6_VAR_H
#include <netinet/in6_var.h>
#endif /* HAVE_NETINET_IN6_VAR_H */

#ifdef HAVE_NETINET6_IN_H
#include <netinet6/in.h>
#endif /* HAVE_NETINET6_IN_H */


#ifdef HAVE_NETINET6_IP6_H
#include <netinet6/ip6.h>
#endif /* HAVE_NETINET6_IP6_H */

#ifdef HAVE_NETINET_ICMP6_H
#include <netinet/icmp6.h>
#endif /* HAVE_NETINET_ICMP6_H */

#ifdef HAVE_NETINET6_ND6_H
#include <netinet6/nd6.h>
#endif /* HAVE_NETINET6_ND6_H */

/* Some systems do not define UINT32_MAX */
#ifndef UINT32_MAX
#define UINT32_MAX 0xFFFFFFFFU
#endif /* UINT32_MAX */

#ifdef HAVE_LIBUTIL_H
#include <libutil.h>
#endif /* HAVE_LIBUTIL_H */

#ifdef HAVE_GLIBC_BACKTRACE
#include <execinfo.h>
#endif /* HAVE_GLIBC_BACKTRACE */

#ifdef BSDI_NRL

#ifdef HAVE_NETINET6_IN6_H
#include <netinet6/in6.h>
#endif /* HAVE_NETINET6_IN6_H */

#ifdef NRL
#include <netinet6/in6.h>
#endif /* NRL */

#define IN6_ARE_ADDR_EQUAL IN6_IS_ADDR_EQUAL

#endif /* BSDI_NRL */

/* 
 * RFC 2553-bis defines not available on some systems.
 */
#ifndef _CMSG_DATA_ALIGN
#define _CMSG_DATA_ALIGN(n)           (((n) + 3) & ~3)
#endif /* _CMSG_DATA_ALIGN */

#ifndef _CMSG_HDR_ALIGN
#define _CMSG_HDR_ALIGN(n)            (((n) + 3) & ~3)
#endif /* _CMSG_HDR_ALIGN */

#ifndef CMSG_SPACE
#define CMSG_SPACE(l)       (_CMSG_DATA_ALIGN(sizeof(struct cmsghdr)) + \
                              _CMSG_HDR_ALIGN(l))
#endif  /* CMSG_SPACE */


#ifndef CMSG_LEN
#define CMSG_LEN(l)         (_CMSG_DATA_ALIGN(sizeof(struct cmsghdr)) + (l))
#endif /* CMSG_LEN */

#if !(defined(__GNUC__) || defined(VTYSH_EXTRACT_PL)) 
#define __attribute__(x)
#endif  /* !__GNUC__ */

/*  The definition of struct in_pktinfo is missing in old version of
    GLIBC 2.1 (Redhat 6.1).  */
#if defined (GNU_LINUX) && ! defined (HAVE_INPKTINFO)
struct in_pktinfo
{
  int ipi_ifindex;
  struct in_addr ipi_spec_dst;
  struct in_addr ipi_addr;
};
#endif

/* 
 * OSPF Fragmentation / fragmented writes
 *
 * ospfd can support writing fragmented packets, for cases where
 * kernel will not fragment IP_HDRINCL and/or multicast destined
 * packets (ie TTBOMK all kernels, BSD, SunOS, Linux). However,
 * SunOS, probably BSD too, clobber the user supplied IP ID and IP
 * flags fields, hence user-space fragmentation will not work.
 * Only Linux is known to leave IP header unmolested.
 * Further, fragmentation really should be done the kernel, which already
 * supports it, and which avoids nasty IP ID state problems.
 *
 * Fragmentation of OSPF packets can be required on networks with router
 * with many many interfaces active in one area, or on networks with links
 * with low MTUs.
 */
#ifdef GNU_LINUX
#define WANT_OSPF_WRITE_FRAGMENT
#endif

/* 
 * IP_HDRINCL / struct ip byte order
 *
 * Linux: network byte order
 * *BSD: network, except for length and offset. (cf Stevens)
 * SunOS: nominally as per BSD. but bug: network order on LE.
 * OpenBSD: network byte order, apart from older versions which are as per 
 *          *BSD
 */
#if defined(__NetBSD__) || defined(__FreeBSD__) \
   || (defined(__OpenBSD__) && (OpenBSD < 200311)) \
   || (defined(SUNOS_5) && defined(WORDS_BIGENDIAN))
#define HAVE_IP_HDRINCL_BSD_ORDER
#endif

/* 
/* MAX / MIN are not commonly defined, but useful */
#ifndef MAX
#define MAX(a, b) ((a) > (b) ? (a) : (b))
#endif 
#ifndef MIN
#define MIN(a, b) ((a) < (b) ? (a) : (b))
#endif

/* For old definition. */
#ifndef IN6_ARE_ADDR_EQUAL
#define IN6_ARE_ADDR_EQUAL IN6_IS_ADDR_EQUAL
#endif /* IN6_ARE_ADDR_EQUAL */

/* Zebra message types. */
#define ZEBRA_INTERFACE_ADD                1
#define ZEBRA_INTERFACE_DELETE             2
#define ZEBRA_INTERFACE_ADDRESS_ADD        3
#define ZEBRA_INTERFACE_ADDRESS_DELETE     4
#define ZEBRA_INTERFACE_UP                 5
#define ZEBRA_INTERFACE_DOWN               6
#define ZEBRA_IPV4_ROUTE_ADD               7
#define ZEBRA_IPV4_ROUTE_DELETE            8
#define ZEBRA_IPV6_ROUTE_ADD               9
#define ZEBRA_IPV6_ROUTE_DELETE           10
#define ZEBRA_REDISTRIBUTE_ADD            11
#define ZEBRA_REDISTRIBUTE_DELETE         12
#define ZEBRA_REDISTRIBUTE_DEFAULT_ADD    13
#define ZEBRA_REDISTRIBUTE_DEFAULT_DELETE 14
#define ZEBRA_IPV4_NEXTHOP_LOOKUP         15
#define ZEBRA_IPV6_NEXTHOP_LOOKUP         16
#define ZEBRA_IPV4_IMPORT_LOOKUP          17
#define ZEBRA_IPV6_IMPORT_LOOKUP          18
#define ZEBRA_INTERFACE_RENAME            19
#define ZEBRA_MESSAGE_MAX                 20

/* Zebra route's types. */
#define ZEBRA_ROUTE_SYSTEM               0
#define ZEBRA_ROUTE_KERNEL               1
#define ZEBRA_ROUTE_CONNECT              2
#define ZEBRA_ROUTE_STATIC               3
#define ZEBRA_ROUTE_RIP                  4
#define ZEBRA_ROUTE_RIPNG                5
#define ZEBRA_ROUTE_OSPF                 6
#define ZEBRA_ROUTE_OSPF6                7
#define ZEBRA_ROUTE_ISIS                 8
#define ZEBRA_ROUTE_BGP                  9
#define ZEBRA_ROUTE_MAX                  10

/* Zebra's family types. */
#define ZEBRA_FAMILY_IPV4                1
#define ZEBRA_FAMILY_IPV6                2
#define ZEBRA_FAMILY_MAX                 3

/* Error codes of zebra. */
#define ZEBRA_ERR_RTEXIST               -1
#define ZEBRA_ERR_RTUNREACH             -2
#define ZEBRA_ERR_EPERM                 -3
#define ZEBRA_ERR_RTNOEXIST             -4

/* Zebra message flags */
#define ZEBRA_FLAG_INTERNAL           0x01
#define ZEBRA_FLAG_SELFROUTE          0x02
#define ZEBRA_FLAG_BLACKHOLE          0x04
#define ZEBRA_FLAG_IBGP               0x08
#define ZEBRA_FLAG_SELECTED           0x10
#define ZEBRA_FLAG_CHANGED            0x20
#define ZEBRA_FLAG_STATIC             0x40
#define ZEBRA_FLAG_REJECT             0x80

/* Zebra nexthop flags. */
#define ZEBRA_NEXTHOP_IFINDEX            1
#define ZEBRA_NEXTHOP_IFNAME             2
#define ZEBRA_NEXTHOP_IPV4               3
#define ZEBRA_NEXTHOP_IPV4_IFINDEX       4
#define ZEBRA_NEXTHOP_IPV4_IFNAME        5
#define ZEBRA_NEXTHOP_IPV6               6
#define ZEBRA_NEXTHOP_IPV6_IFINDEX       7
#define ZEBRA_NEXTHOP_IPV6_IFNAME        8
#define ZEBRA_NEXTHOP_BLACKHOLE          9

#ifndef INADDR_LOOPBACK
#define	INADDR_LOOPBACK	0x7f000001	/* Internet address 127.0.0.1.  */
#endif

/* Address family numbers from RFC1700. */
#define AFI_IP                    1
#define AFI_IP6                   2
#define AFI_MAX                   3

/* Subsequent Address Family Identifier. */
#define SAFI_UNICAST              1
#define SAFI_MULTICAST            2
#define SAFI_UNICAST_MULTICAST    3
#define SAFI_MPLS_VPN             4
#define SAFI_MAX                  5

/* Filter direction.  */
#define FILTER_IN                 0
#define FILTER_OUT                1
#define FILTER_MAX                2

/* Default Administrative Distance of each protocol. */
#define ZEBRA_KERNEL_DISTANCE_DEFAULT      0
#define ZEBRA_CONNECT_DISTANCE_DEFAULT     0
#define ZEBRA_STATIC_DISTANCE_DEFAULT      1
#define ZEBRA_RIP_DISTANCE_DEFAULT       120
#define ZEBRA_RIPNG_DISTANCE_DEFAULT     120
#define ZEBRA_OSPF_DISTANCE_DEFAULT      110
#define ZEBRA_OSPF6_DISTANCE_DEFAULT     110
#define ZEBRA_ISIS_DISTANCE_DEFAULT      115
#define ZEBRA_IBGP_DISTANCE_DEFAULT      200
#define ZEBRA_EBGP_DISTANCE_DEFAULT       20

/* Flag manipulation macros. */
#define CHECK_FLAG(V,F)      ((V) & (F))
#define SET_FLAG(V,F)        (V) = (V) | (F)
#define UNSET_FLAG(V,F)      (V) = (V) & ~(F)

/* AFI and SAFI type. */
typedef u_int16_t afi_t;
typedef u_int8_t safi_t;

/* Zebra types. */
typedef u_int16_t zebra_size_t;
typedef u_int8_t zebra_command_t;

/* FIFO -- first in first out structure and macros.  */
struct fifo
{
  struct fifo *next;
  struct fifo *prev;
};

#define FIFO_INIT(F)                                  \
  do {                                                \
    struct fifo *Xfifo = (struct fifo *)(F);          \
    Xfifo->next = Xfifo->prev = Xfifo;                \
  } while (0)

#define FIFO_ADD(F,N)                                 \
  do {                                                \
    struct fifo *Xfifo = (struct fifo *)(F);          \
    struct fifo *Xnode = (struct fifo *)(N);          \
    Xnode->next = Xfifo;                              \
    Xnode->prev = Xfifo->prev;                        \
    Xfifo->prev = Xfifo->prev->next = Xnode;          \
  } while (0)

#define FIFO_DEL(N)                                   \
  do {                                                \
    struct fifo *Xnode = (struct fifo *)(N);          \
    Xnode->prev->next = Xnode->next;                  \
    Xnode->next->prev = Xnode->prev;                  \
  } while (0)

#define FIFO_HEAD(F)                                  \
  ((((struct fifo *)(F))->next == (struct fifo *)(F)) \
  ? NULL : (F)->next)

#define FIFO_EMPTY(F)                                 \
  (((struct fifo *)(F))->next == (struct fifo *)(F))

#define FIFO_TOP(F)                                   \
  (FIFO_EMPTY(F) ? NULL : ((struct fifo *)(F))->next)

#endif /* _ZEBRA_H */
Commit	Line	Data
718e3744	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__
9bcdb638	31	typedef unsigned int u_int32_t;
	32	typedef unsigned short u_int16_t;
	33	typedef unsigned char u_int8_t;
718e3744	34	#endif /* SUNOS_5 */
718e3744	35
f0438521	36	#ifndef HAVE_SOCKLEN_T
	37	typedef int socklen_t;
	38	#endif /* HAVE_SOCKLEN_T */
	39
718e3744	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>
edd7c245	48	#include <pwd.h>
edd7c245	49	#include <grp.h>
718e3744	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/time.h>
	59	#include <sys/types.h>
	60	#include <sys/param.h>
	61	#ifdef HAVE_SYS_SYSCTL_H
	62	#include <sys/sysctl.h>
	63	#endif /* HAVE_SYS_SYSCTL_H */
	64	#include <sys/ioctl.h>
	65	#ifdef HAVE_SYS_CONF_H
	66	#include <sys/conf.h>
	67	#endif /* HAVE_SYS_CONF_H */
	68	#ifdef HAVE_SYS_KSYM_H
	69	#include <sys/ksym.h>
	70	#endif /* HAVE_SYS_KSYM_H */
	71	#include <syslog.h>
	72	#include <time.h>
	73	#include <sys/uio.h>
	74	#include <sys/utsname.h>
	75	#ifdef HAVE_RUSAGE
	76	#include <sys/resource.h>
	77	#endif /* HAVE_RUSAGE */
a58c25b6	78	#ifdef HAVE_LIMITS_H
	79	#include <limits.h>
	80	#endif /* HAVE_LIMITS_H */
718e3744	81
	82	/* machine dependent includes */
	83	#ifdef SUNOS_5
718e3744	84	#include <strings.h>
	85	#endif /* SUNOS_5 */
	86
	87	/* machine dependent includes */
	88	#ifdef HAVE_LINUX_VERSION_H
	89	#include <linux/version.h>
	90	#endif /* HAVE_LINUX_VERSION_H */
	91
ba965c6c	92	#ifdef HAVE_ASM_TYPES_H
	93	#include <asm/types.h>
	94	#endif /* HAVE_ASM_TYPES_H */
	95
718e3744	96	/* misc include group */
	97	#include <stdarg.h>
	98	#include <assert.h>
	99
ba3a0bc5	100	#ifdef HAVE_LCAPS
	101	#include <sys/capability.h>
	102	#include <sys/prctl.h>
	103	#endif /* HAVE_LCAPS */
	104
718e3744	105	/* network include group */
	106
	107	#include <sys/socket.h>
	108
	109	#ifdef HAVE_SYS_SOCKIO_H
	110	#include <sys/sockio.h>
	111	#endif /* HAVE_SYS_SOCKIO_H */
	112
	113	#ifdef HAVE_NETINET_IN_H
	114	#include <netinet/in.h>
	115	#endif /* HAVE_NETINET_IN_H */
	116	#include <netinet/in_systm.h>
	117	#include <netinet/ip.h>
	118	#include <netinet/tcp.h>
	119
	120	#ifdef HAVE_NET_NETOPT_H
	121	#include <net/netopt.h>
	122	#endif /* HAVE_NET_NETOPT_H */
	123
	124	#include <net/if.h>
	125
	126	#ifdef HAVE_NET_IF_DL_H
	127	#include <net/if_dl.h>
	128	#endif /* HAVE_NET_IF_DL_H */
	129
	130	#ifdef HAVE_NET_IF_VAR_H
	131	#include <net/if_var.h>
	132	#endif /* HAVE_NET_IF_VAR_H */
	133
a58c25b6	134	#ifdef HAVE_NET_ROUTE_H
718e3744	135	#include <net/route.h>
a58c25b6	136	#endif /* HAVE_NET_ROUTE_H */
718e3744	137
	138	#ifdef HAVE_NETLINK
	139	#include <linux/netlink.h>
	140	#include <linux/rtnetlink.h>
	141	#else
	142	#define RT_TABLE_MAIN 0
	143	#endif /* HAVE_NETLINK */
	144
	145	#ifdef HAVE_NETDB_H
	146	#include <netdb.h>
	147	#endif /* HAVE_NETDB_H */
	148
	149	#include <arpa/inet.h>
	150	#include <arpa/telnet.h>
	151
	152	#ifdef HAVE_INET_ND_H
	153	#include <inet/nd.h>
	154	#endif /* HAVE_INET_ND_H */
	155
	156	#ifdef HAVE_NETINET_IN_VAR_H
	157	#include <netinet/in_var.h>
	158	#endif /* HAVE_NETINET_IN_VAR_H */
	159
726f9b2b	160	#ifdef HAVE_NETINET6_IN6_VAR_H
	161	#include <netinet6/in6_var.h>
	162	#endif /* HAVE_NETINET6_IN6_VAR_H */
	163
718e3744	164	#ifdef HAVE_NETINET_IN6_VAR_H
	165	#include <netinet/in6_var.h>
	166	#endif /* HAVE_NETINET_IN6_VAR_H */
	167
	168	#ifdef HAVE_NETINET6_IN_H
	169	#include <netinet6/in.h>
	170	#endif /* HAVE_NETINET6_IN_H */
	171
	172
	173	#ifdef HAVE_NETINET6_IP6_H
	174	#include <netinet6/ip6.h>
	175	#endif /* HAVE_NETINET6_IP6_H */
	176
	177	#ifdef HAVE_NETINET_ICMP6_H
	178	#include <netinet/icmp6.h>
	179	#endif /* HAVE_NETINET_ICMP6_H */
	180
	181	#ifdef HAVE_NETINET6_ND6_H
	182	#include <netinet6/nd6.h>
	183	#endif /* HAVE_NETINET6_ND6_H */
	184
3b424979	185	/* Some systems do not define UINT32_MAX */
	186	#ifndef UINT32_MAX
	187	#define UINT32_MAX 0xFFFFFFFFU
	188	#endif /* UINT32_MAX */
	189
718e3744	190	#ifdef HAVE_LIBUTIL_H
	191	#include <libutil.h>
	192	#endif /* HAVE_LIBUTIL_H */
	193
fb2d1502	194	#ifdef HAVE_GLIBC_BACKTRACE
	195	#include <execinfo.h>
	196	#endif /* HAVE_GLIBC_BACKTRACE */
	197
718e3744	198	#ifdef BSDI_NRL
	199
	200	#ifdef HAVE_NETINET6_IN6_H
	201	#include <netinet6/in6.h>
	202	#endif /* HAVE_NETINET6_IN6_H */
	203
	204	#ifdef NRL
	205	#include <netinet6/in6.h>
	206	#endif /* NRL */
	207
	208	#define IN6_ARE_ADDR_EQUAL IN6_IS_ADDR_EQUAL
	209
718e3744	210	#endif /* BSDI_NRL */
718e3744	211
02ff83c5	212	/*
	213	* RFC 2553-bis defines not available on some systems.
	214	*/
	215	#ifndef _CMSG_DATA_ALIGN
	216	#define _CMSG_DATA_ALIGN(n) (((n) + 3) & ~3)
	217	#endif /* _CMSG_DATA_ALIGN */
	218
	219	#ifndef _CMSG_HDR_ALIGN
	220	#define _CMSG_HDR_ALIGN(n) (((n) + 3) & ~3)
	221	#endif /* _CMSG_HDR_ALIGN */
	222
	223	#ifndef CMSG_SPACE
	224	#define CMSG_SPACE(l) (_CMSG_DATA_ALIGN(sizeof(struct cmsghdr)) + \
	225	_CMSG_HDR_ALIGN(l))
	226	#endif /* CMSG_SPACE */
	227
	228
	229	#ifndef CMSG_LEN
	230	#define CMSG_LEN(l) (_CMSG_DATA_ALIGN(sizeof(struct cmsghdr)) + (l))
	231	#endif /* CMSG_LEN */
	232
138ce75f	233	#if !(defined(__GNUC__) \|\| defined(VTYSH_EXTRACT_PL))
51a8798e	234	#define __attribute__(x)
	235	#endif /* !__GNUC__ */
	236
718e3744	237	/* The definition of struct in_pktinfo is missing in old version of
	238	GLIBC 2.1 (Redhat 6.1). */
	239	#if defined (GNU_LINUX) && ! defined (HAVE_INPKTINFO)
	240	struct in_pktinfo
	241	{
	242	int ipi_ifindex;
	243	struct in_addr ipi_spec_dst;
	244	struct in_addr ipi_addr;
	245	};
	246	#endif
	247
9172ee0e	248	/*
	249	* OSPF Fragmentation / fragmented writes
	250	*
	251	* ospfd can support writing fragmented packets, for cases where
	252	* kernel will not fragment IP_HDRINCL and/or multicast destined
	253	* packets (ie TTBOMK all kernels, BSD, SunOS, Linux). However,
	254	* SunOS, probably BSD too, clobber the user supplied IP ID and IP
	255	* flags fields, hence user-space fragmentation will not work.
	256	* Only Linux is known to leave IP header unmolested.
	257	* Further, fragmentation really should be done the kernel, which already
	258	* supports it, and which avoids nasty IP ID state problems.
	259	*
	260	* Fragmentation of OSPF packets can be required on networks with router
	261	* with many many interfaces active in one area, or on networks with links
	262	* with low MTUs.
	263	*/
	264	#ifdef GNU_LINUX
	265	#define WANT_OSPF_WRITE_FRAGMENT
	266	#endif
	267
	268	/*
	269	* IP_HDRINCL / struct ip byte order
	270	*
	271	* Linux: network byte order
	272	* *BSD: network, except for length and offset. (cf Stevens)
	273	* SunOS: nominally as per BSD. but bug: network order on LE.
	274	* OpenBSD: network byte order, apart from older versions which are as per
	275	* *BSD
	276	*/
	277	#if defined(__NetBSD__) \|\| defined(__FreeBSD__) \
	278	\|\| (defined(__OpenBSD__) && (OpenBSD < 200311)) \
	279	\|\| (defined(SUNOS_5) && defined(WORDS_BIGENDIAN))
	280	#define HAVE_IP_HDRINCL_BSD_ORDER
	281	#endif
	282
	283	/*
efba6ce9	284	/* MAX / MIN are not commonly defined, but useful */
	285	#ifndef MAX
	286	#define MAX(a, b) ((a) > (b) ? (a) : (b))
	287	#endif
	288	#ifndef MIN
	289	#define MIN(a, b) ((a) < (b) ? (a) : (b))
	290	#endif
	291
718e3744	292	/* For old definition. */
	293	#ifndef IN6_ARE_ADDR_EQUAL
	294	#define IN6_ARE_ADDR_EQUAL IN6_IS_ADDR_EQUAL
	295	#endif /* IN6_ARE_ADDR_EQUAL */
	296
	297	/* Zebra message types. */
	298	#define ZEBRA_INTERFACE_ADD 1
	299	#define ZEBRA_INTERFACE_DELETE 2
	300	#define ZEBRA_INTERFACE_ADDRESS_ADD 3
	301	#define ZEBRA_INTERFACE_ADDRESS_DELETE 4
	302	#define ZEBRA_INTERFACE_UP 5
	303	#define ZEBRA_INTERFACE_DOWN 6
	304	#define ZEBRA_IPV4_ROUTE_ADD 7
	305	#define ZEBRA_IPV4_ROUTE_DELETE 8
	306	#define ZEBRA_IPV6_ROUTE_ADD 9
	307	#define ZEBRA_IPV6_ROUTE_DELETE 10
	308	#define ZEBRA_REDISTRIBUTE_ADD 11
	309	#define ZEBRA_REDISTRIBUTE_DELETE 12
	310	#define ZEBRA_REDISTRIBUTE_DEFAULT_ADD 13
	311	#define ZEBRA_REDISTRIBUTE_DEFAULT_DELETE 14
	312	#define ZEBRA_IPV4_NEXTHOP_LOOKUP 15
	313	#define ZEBRA_IPV6_NEXTHOP_LOOKUP 16
	314	#define ZEBRA_IPV4_IMPORT_LOOKUP 17
	315	#define ZEBRA_IPV6_IMPORT_LOOKUP 18
efba6ce9	316	#define ZEBRA_INTERFACE_RENAME 19
efba6ce9	317	#define ZEBRA_MESSAGE_MAX 20
718e3744	318
	319	/* Zebra route's types. */
	320	#define ZEBRA_ROUTE_SYSTEM 0
	321	#define ZEBRA_ROUTE_KERNEL 1
	322	#define ZEBRA_ROUTE_CONNECT 2
	323	#define ZEBRA_ROUTE_STATIC 3
	324	#define ZEBRA_ROUTE_RIP 4
	325	#define ZEBRA_ROUTE_RIPNG 5
	326	#define ZEBRA_ROUTE_OSPF 6
	327	#define ZEBRA_ROUTE_OSPF6 7
9e867fe6	328	#define ZEBRA_ROUTE_ISIS 8
	329	#define ZEBRA_ROUTE_BGP 9
	330	#define ZEBRA_ROUTE_MAX 10
718e3744	331
	332	/* Zebra's family types. */
	333	#define ZEBRA_FAMILY_IPV4 1
	334	#define ZEBRA_FAMILY_IPV6 2
	335	#define ZEBRA_FAMILY_MAX 3
	336
	337	/* Error codes of zebra. */
	338	#define ZEBRA_ERR_RTEXIST -1
	339	#define ZEBRA_ERR_RTUNREACH -2
	340	#define ZEBRA_ERR_EPERM -3
	341	#define ZEBRA_ERR_RTNOEXIST -4
	342
	343	/* Zebra message flags */
	344	#define ZEBRA_FLAG_INTERNAL 0x01
	345	#define ZEBRA_FLAG_SELFROUTE 0x02
	346	#define ZEBRA_FLAG_BLACKHOLE 0x04
	347	#define ZEBRA_FLAG_IBGP 0x08
	348	#define ZEBRA_FLAG_SELECTED 0x10
	349	#define ZEBRA_FLAG_CHANGED 0x20
	350	#define ZEBRA_FLAG_STATIC 0x40
81dfcaa2	351	#define ZEBRA_FLAG_REJECT 0x80
718e3744	352
	353	/* Zebra nexthop flags. */
	354	#define ZEBRA_NEXTHOP_IFINDEX 1
	355	#define ZEBRA_NEXTHOP_IFNAME 2
	356	#define ZEBRA_NEXTHOP_IPV4 3
	357	#define ZEBRA_NEXTHOP_IPV4_IFINDEX 4
	358	#define ZEBRA_NEXTHOP_IPV4_IFNAME 5
	359	#define ZEBRA_NEXTHOP_IPV6 6
	360	#define ZEBRA_NEXTHOP_IPV6_IFINDEX 7
	361	#define ZEBRA_NEXTHOP_IPV6_IFNAME 8
595db7f1	362	#define ZEBRA_NEXTHOP_BLACKHOLE 9
718e3744	363
	364	#ifndef INADDR_LOOPBACK
	365	#define INADDR_LOOPBACK 0x7f000001 /* Internet address 127.0.0.1. */
	366	#endif
	367
	368	/* Address family numbers from RFC1700. */
	369	#define AFI_IP 1
	370	#define AFI_IP6 2
	371	#define AFI_MAX 3
	372
	373	/* Subsequent Address Family Identifier. */
	374	#define SAFI_UNICAST 1
	375	#define SAFI_MULTICAST 2
	376	#define SAFI_UNICAST_MULTICAST 3
	377	#define SAFI_MPLS_VPN 4
	378	#define SAFI_MAX 5
	379
	380	/* Filter direction. */
	381	#define FILTER_IN 0
	382	#define FILTER_OUT 1
	383	#define FILTER_MAX 2
	384
	385	/* Default Administrative Distance of each protocol. */
	386	#define ZEBRA_KERNEL_DISTANCE_DEFAULT 0
	387	#define ZEBRA_CONNECT_DISTANCE_DEFAULT 0
	388	#define ZEBRA_STATIC_DISTANCE_DEFAULT 1
	389	#define ZEBRA_RIP_DISTANCE_DEFAULT 120
	390	#define ZEBRA_RIPNG_DISTANCE_DEFAULT 120
	391	#define ZEBRA_OSPF_DISTANCE_DEFAULT 110
	392	#define ZEBRA_OSPF6_DISTANCE_DEFAULT 110
9e867fe6	393	#define ZEBRA_ISIS_DISTANCE_DEFAULT 115
718e3744	394	#define ZEBRA_IBGP_DISTANCE_DEFAULT 200
	395	#define ZEBRA_EBGP_DISTANCE_DEFAULT 20
	396
	397	/* Flag manipulation macros. */
	398	#define CHECK_FLAG(V,F) ((V) & (F))
	399	#define SET_FLAG(V,F) (V) = (V) \| (F)
	400	#define UNSET_FLAG(V,F) (V) = (V) & ~(F)
	401
	402	/* AFI and SAFI type. */
	403	typedef u_int16_t afi_t;
5228ad27	404	typedef u_int8_t safi_t;
718e3744	405
	406	/* Zebra types. */
	407	typedef u_int16_t zebra_size_t;
	408	typedef u_int8_t zebra_command_t;
	409
f0438521	410	/* FIFO -- first in first out structure and macros. */
	411	struct fifo
	412	{
	413	struct fifo *next;
	414	struct fifo *prev;
	415	};
	416
	417	#define FIFO_INIT(F) \
	418	do { \
	419	struct fifo Xfifo = (struct fifo )(F); \
	420	Xfifo->next = Xfifo->prev = Xfifo; \
	421	} while (0)
	422
	423	#define FIFO_ADD(F,N) \
	424	do { \
	425	struct fifo Xfifo = (struct fifo )(F); \
	426	struct fifo Xnode = (struct fifo )(N); \
	427	Xnode->next = Xfifo; \
	428	Xnode->prev = Xfifo->prev; \
	429	Xfifo->prev = Xfifo->prev->next = Xnode; \
	430	} while (0)
	431
	432	#define FIFO_DEL(N) \
	433	do { \
	434	struct fifo Xnode = (struct fifo )(N); \
	435	Xnode->prev->next = Xnode->next; \
	436	Xnode->next->prev = Xnode->prev; \
	437	} while (0)
	438
	439	#define FIFO_HEAD(F) \
	440	((((struct fifo )(F))->next == (struct fifo )(F)) \
	441	? NULL : (F)->next)
	442
	443	#define FIFO_EMPTY(F) \
	444	(((struct fifo )(F))->next == (struct fifo )(F))
	445
	446	#define FIFO_TOP(F) \
	447	(FIFO_EMPTY(F) ? NULL : ((struct fifo *)(F))->next)
	448
718e3744	449	#endif /* _ZEBRA_H */