[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__
#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>
#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 */

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

/* 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 */

#include <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 */

#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

/* BSD/OS 4.0 has lost belows defines, it should appear at
   /usr/include/sys/socket.h.  */
#define CMSG_ALIGN(n)           (((n) + 3) & ~3)
#define CMSG_SPACE(l)   (CMSG_ALIGN(sizeof(struct cmsghdr)) + CMSG_ALIGN(l))
#define CMSG_LEN(l)     (CMSG_ALIGN(sizeof(struct cmsghdr)) + (l))

#endif /* BSDI_NRL */

/*  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

/* 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_MESSAGE_MAX                 19

/* 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_BGP                  8
#define ZEBRA_ROUTE_MAX                  9

/* 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_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_char 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__
	31	#endif /* SUNOS_5 */
	32
f0438521	33	#ifndef HAVE_SOCKLEN_T
	34	typedef int socklen_t;
	35	#endif /* HAVE_SOCKLEN_T */
	36
718e3744	37	#include <unistd.h>
	38	#include <stdio.h>
	39	#include <stdlib.h>
	40	#include <ctype.h>
	41	#include <errno.h>
	42	#include <fcntl.h>
	43	#include <signal.h>
	44	#include <string.h>
	45	#ifdef HAVE_STROPTS_H
	46	#include <stropts.h>
	47	#endif /* HAVE_STROPTS_H */
	48	#include <sys/fcntl.h>
	49	#ifdef HAVE_SYS_SELECT_H
	50	#include <sys/select.h>
	51	#endif /* HAVE_SYS_SELECT_H */
	52	#include <sys/stat.h>
	53	#include <sys/time.h>
	54	#include <sys/types.h>
	55	#include <sys/param.h>
	56	#ifdef HAVE_SYS_SYSCTL_H
	57	#include <sys/sysctl.h>
	58	#endif /* HAVE_SYS_SYSCTL_H */
	59	#include <sys/ioctl.h>
	60	#ifdef HAVE_SYS_CONF_H
	61	#include <sys/conf.h>
	62	#endif /* HAVE_SYS_CONF_H */
	63	#ifdef HAVE_SYS_KSYM_H
	64	#include <sys/ksym.h>
	65	#endif /* HAVE_SYS_KSYM_H */
	66	#include <syslog.h>
	67	#include <time.h>
	68	#include <sys/uio.h>
	69	#include <sys/utsname.h>
	70	#ifdef HAVE_RUSAGE
	71	#include <sys/resource.h>
	72	#endif /* HAVE_RUSAGE */
	73
	74	/* machine dependent includes */
	75	#ifdef SUNOS_5
	76	#include <limits.h>
	77	#include <strings.h>
	78	#endif /* SUNOS_5 */
	79
	80	/* machine dependent includes */
	81	#ifdef HAVE_LINUX_VERSION_H
	82	#include <linux/version.h>
	83	#endif /* HAVE_LINUX_VERSION_H */
	84
ba965c6c	85	#ifdef HAVE_ASM_TYPES_H
	86	#include <asm/types.h>
	87	#endif /* HAVE_ASM_TYPES_H */
	88
718e3744	89	/* misc include group */
	90	#include <stdarg.h>
	91	#include <assert.h>
	92
	93	/* network include group */
	94
	95	#include <sys/socket.h>
	96
	97	#ifdef HAVE_SYS_SOCKIO_H
	98	#include <sys/sockio.h>
	99	#endif /* HAVE_SYS_SOCKIO_H */
	100
	101	#ifdef HAVE_NETINET_IN_H
	102	#include <netinet/in.h>
	103	#endif /* HAVE_NETINET_IN_H */
	104	#include <netinet/in_systm.h>
	105	#include <netinet/ip.h>
	106	#include <netinet/tcp.h>
	107
	108	#ifdef HAVE_NET_NETOPT_H
	109	#include <net/netopt.h>
	110	#endif /* HAVE_NET_NETOPT_H */
	111
	112	#include <net/if.h>
	113
	114	#ifdef HAVE_NET_IF_DL_H
	115	#include <net/if_dl.h>
	116	#endif /* HAVE_NET_IF_DL_H */
	117
	118	#ifdef HAVE_NET_IF_VAR_H
	119	#include <net/if_var.h>
	120	#endif /* HAVE_NET_IF_VAR_H */
	121
	122	#include <net/route.h>
	123
	124	#ifdef HAVE_NETLINK
	125	#include <linux/netlink.h>
	126	#include <linux/rtnetlink.h>
	127	#else
	128	#define RT_TABLE_MAIN 0
	129	#endif /* HAVE_NETLINK */
	130
	131	#ifdef HAVE_NETDB_H
	132	#include <netdb.h>
	133	#endif /* HAVE_NETDB_H */
	134
	135	#include <arpa/inet.h>
	136	#include <arpa/telnet.h>
	137
	138	#ifdef HAVE_INET_ND_H
	139	#include <inet/nd.h>
	140	#endif /* HAVE_INET_ND_H */
	141
	142	#ifdef HAVE_NETINET_IN_VAR_H
	143	#include <netinet/in_var.h>
	144	#endif /* HAVE_NETINET_IN_VAR_H */
	145
726f9b2b	146	#ifdef HAVE_NETINET6_IN6_VAR_H
	147	#include <netinet6/in6_var.h>
	148	#endif /* HAVE_NETINET6_IN6_VAR_H */
	149
718e3744	150	#ifdef HAVE_NETINET_IN6_VAR_H
	151	#include <netinet/in6_var.h>
	152	#endif /* HAVE_NETINET_IN6_VAR_H */
	153
	154	#ifdef HAVE_NETINET6_IN_H
	155	#include <netinet6/in.h>
	156	#endif /* HAVE_NETINET6_IN_H */
	157
	158
	159	#ifdef HAVE_NETINET6_IP6_H
	160	#include <netinet6/ip6.h>
	161	#endif /* HAVE_NETINET6_IP6_H */
	162
	163	#ifdef HAVE_NETINET_ICMP6_H
	164	#include <netinet/icmp6.h>
	165	#endif /* HAVE_NETINET_ICMP6_H */
	166
	167	#ifdef HAVE_NETINET6_ND6_H
	168	#include <netinet6/nd6.h>
	169	#endif /* HAVE_NETINET6_ND6_H */
	170
	171	#ifdef HAVE_LIBUTIL_H
	172	#include <libutil.h>
	173	#endif /* HAVE_LIBUTIL_H */
	174
fb2d1502	175	#ifdef HAVE_GLIBC_BACKTRACE
	176	#include <execinfo.h>
	177	#endif /* HAVE_GLIBC_BACKTRACE */
	178
718e3744	179	#ifdef BSDI_NRL
	180
	181	#ifdef HAVE_NETINET6_IN6_H
	182	#include <netinet6/in6.h>
	183	#endif /* HAVE_NETINET6_IN6_H */
	184
	185	#ifdef NRL
	186	#include <netinet6/in6.h>
	187	#endif /* NRL */
	188
	189	#define IN6_ARE_ADDR_EQUAL IN6_IS_ADDR_EQUAL
	190
	191	/* BSD/OS 4.0 has lost belows defines, it should appear at
	192	/usr/include/sys/socket.h. */
	193	#define CMSG_ALIGN(n) (((n) + 3) & ~3)
	194	#define CMSG_SPACE(l) (CMSG_ALIGN(sizeof(struct cmsghdr)) + CMSG_ALIGN(l))
	195	#define CMSG_LEN(l) (CMSG_ALIGN(sizeof(struct cmsghdr)) + (l))
	196
	197	#endif /* BSDI_NRL */
	198
	199	/* The definition of struct in_pktinfo is missing in old version of
	200	GLIBC 2.1 (Redhat 6.1). */
	201	#if defined (GNU_LINUX) && ! defined (HAVE_INPKTINFO)
	202	struct in_pktinfo
	203	{
	204	int ipi_ifindex;
	205	struct in_addr ipi_spec_dst;
	206	struct in_addr ipi_addr;
	207	};
	208	#endif
	209
	210	/* For old definition. */
	211	#ifndef IN6_ARE_ADDR_EQUAL
	212	#define IN6_ARE_ADDR_EQUAL IN6_IS_ADDR_EQUAL
	213	#endif /* IN6_ARE_ADDR_EQUAL */
	214
	215	/* Zebra message types. */
	216	#define ZEBRA_INTERFACE_ADD 1
	217	#define ZEBRA_INTERFACE_DELETE 2
	218	#define ZEBRA_INTERFACE_ADDRESS_ADD 3
	219	#define ZEBRA_INTERFACE_ADDRESS_DELETE 4
	220	#define ZEBRA_INTERFACE_UP 5
	221	#define ZEBRA_INTERFACE_DOWN 6
	222	#define ZEBRA_IPV4_ROUTE_ADD 7
	223	#define ZEBRA_IPV4_ROUTE_DELETE 8
	224	#define ZEBRA_IPV6_ROUTE_ADD 9
	225	#define ZEBRA_IPV6_ROUTE_DELETE 10
	226	#define ZEBRA_REDISTRIBUTE_ADD 11
	227	#define ZEBRA_REDISTRIBUTE_DELETE 12
	228	#define ZEBRA_REDISTRIBUTE_DEFAULT_ADD 13
	229	#define ZEBRA_REDISTRIBUTE_DEFAULT_DELETE 14
	230	#define ZEBRA_IPV4_NEXTHOP_LOOKUP 15
	231	#define ZEBRA_IPV6_NEXTHOP_LOOKUP 16
	232	#define ZEBRA_IPV4_IMPORT_LOOKUP 17
	233	#define ZEBRA_IPV6_IMPORT_LOOKUP 18
	234	#define ZEBRA_MESSAGE_MAX 19
	235
	236	/* Zebra route's types. */
	237	#define ZEBRA_ROUTE_SYSTEM 0
	238	#define ZEBRA_ROUTE_KERNEL 1
	239	#define ZEBRA_ROUTE_CONNECT 2
	240	#define ZEBRA_ROUTE_STATIC 3
	241	#define ZEBRA_ROUTE_RIP 4
	242	#define ZEBRA_ROUTE_RIPNG 5
243	#define ZEBRA_ROUTE_OSPF 6
244	#define ZEBRA_ROUTE_OSPF6 7
245	#define ZEBRA_ROUTE_BGP 8
246	#define ZEBRA_ROUTE_MAX 9
247
248	/* Zebra's family types. */
249	#define ZEBRA_FAMILY_IPV4 1
250	#define ZEBRA_FAMILY_IPV6 2
251	#define ZEBRA_FAMILY_MAX 3
252
253	/* Error codes of zebra. */
254	#define ZEBRA_ERR_RTEXIST -1
255	#define ZEBRA_ERR_RTUNREACH -2
256	#define ZEBRA_ERR_EPERM -3
257	#define ZEBRA_ERR_RTNOEXIST -4
258
259	/* Zebra message flags */
260	#define ZEBRA_FLAG_INTERNAL 0x01
261	#define ZEBRA_FLAG_SELFROUTE 0x02
262	#define ZEBRA_FLAG_BLACKHOLE 0x04
263	#define ZEBRA_FLAG_IBGP 0x08
264	#define ZEBRA_FLAG_SELECTED 0x10
265	#define ZEBRA_FLAG_CHANGED 0x20
266	#define ZEBRA_FLAG_STATIC 0x40
81dfcaa2	267	#define ZEBRA_FLAG_REJECT 0x80
718e3744	268
	269	/* Zebra nexthop flags. */
	270	#define ZEBRA_NEXTHOP_IFINDEX 1
	271	#define ZEBRA_NEXTHOP_IFNAME 2
	272	#define ZEBRA_NEXTHOP_IPV4 3
	273	#define ZEBRA_NEXTHOP_IPV4_IFINDEX 4
	274	#define ZEBRA_NEXTHOP_IPV4_IFNAME 5
	275	#define ZEBRA_NEXTHOP_IPV6 6
	276	#define ZEBRA_NEXTHOP_IPV6_IFINDEX 7
	277	#define ZEBRA_NEXTHOP_IPV6_IFNAME 8
595db7f1	278	#define ZEBRA_NEXTHOP_BLACKHOLE 9
718e3744	279
	280	#ifndef INADDR_LOOPBACK
	281	#define INADDR_LOOPBACK 0x7f000001 /* Internet address 127.0.0.1. */
	282	#endif
	283
	284	/* Address family numbers from RFC1700. */
	285	#define AFI_IP 1
	286	#define AFI_IP6 2
	287	#define AFI_MAX 3
	288
	289	/* Subsequent Address Family Identifier. */
	290	#define SAFI_UNICAST 1
	291	#define SAFI_MULTICAST 2
	292	#define SAFI_UNICAST_MULTICAST 3
	293	#define SAFI_MPLS_VPN 4
	294	#define SAFI_MAX 5
	295
	296	/* Filter direction. */
	297	#define FILTER_IN 0
	298	#define FILTER_OUT 1
	299	#define FILTER_MAX 2
	300
	301	/* Default Administrative Distance of each protocol. */
	302	#define ZEBRA_KERNEL_DISTANCE_DEFAULT 0
	303	#define ZEBRA_CONNECT_DISTANCE_DEFAULT 0
	304	#define ZEBRA_STATIC_DISTANCE_DEFAULT 1
	305	#define ZEBRA_RIP_DISTANCE_DEFAULT 120
	306	#define ZEBRA_RIPNG_DISTANCE_DEFAULT 120
	307	#define ZEBRA_OSPF_DISTANCE_DEFAULT 110
	308	#define ZEBRA_OSPF6_DISTANCE_DEFAULT 110
	309	#define ZEBRA_IBGP_DISTANCE_DEFAULT 200
	310	#define ZEBRA_EBGP_DISTANCE_DEFAULT 20
	311
	312	/* Flag manipulation macros. */
	313	#define CHECK_FLAG(V,F) ((V) & (F))
	314	#define SET_FLAG(V,F) (V) = (V) \| (F)
	315	#define UNSET_FLAG(V,F) (V) = (V) & ~(F)
	316
	317	/* AFI and SAFI type. */
	318	typedef u_int16_t afi_t;
	319	typedef u_char safi_t;
	320
	321	/* Zebra types. */
	322	typedef u_int16_t zebra_size_t;
	323	typedef u_int8_t zebra_command_t;
	324
f0438521	325	/* FIFO -- first in first out structure and macros. */
	326	struct fifo
	327	{
	328	struct fifo *next;
	329	struct fifo *prev;
	330	};
	331
	332	#define FIFO_INIT(F) \
	333	do { \
	334	struct fifo Xfifo = (struct fifo )(F); \
	335	Xfifo->next = Xfifo->prev = Xfifo; \
	336	} while (0)
	337
	338	#define FIFO_ADD(F,N) \
	339	do { \
	340	struct fifo Xfifo = (struct fifo )(F); \
	341	struct fifo Xnode = (struct fifo )(N); \
	342	Xnode->next = Xfifo; \
	343	Xnode->prev = Xfifo->prev; \
	344	Xfifo->prev = Xfifo->prev->next = Xnode; \
	345	} while (0)
	346
	347	#define FIFO_DEL(N) \
	348	do { \
	349	struct fifo Xnode = (struct fifo )(N); \
	350	Xnode->prev->next = Xnode->next; \
	351	Xnode->next->prev = Xnode->prev; \
	352	} while (0)
	353
	354	#define FIFO_HEAD(F) \
	355	((((struct fifo )(F))->next == (struct fifo )(F)) \
	356	? NULL : (F)->next)
	357
	358	#define FIFO_EMPTY(F) \
	359	(((struct fifo )(F))->next == (struct fifo )(F))
	360
	361	#define FIFO_TOP(F) \
	362	(FIFO_EMPTY(F) ? NULL : ((struct fifo *)(F))->next)
	363
718e3744	364	#endif /* _ZEBRA_H */