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/* 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
/* 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 */
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