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// SPDX-License-Identifier: GPL-2.0-or-later
/* Zebra common header.
* Copyright (C) 1997, 1998, 1999, 2000, 2001, 2002 Kunihiro Ishiguro
*/
#ifndef _ZEBRA_H
#define _ZEBRA_H
#ifdef HAVE_CONFIG_H
#include "config.h"
#endif /* HAVE_CONFIG_H */
#include "compiler.h"
#include <unistd.h>
#include <stdio.h>
#include <stdlib.h>
#include <stddef.h>
#include <ctype.h>
#include <sys/types.h>
#include <sys/param.h>
#include <sys/time.h>
#include <time.h>
#include <inttypes.h>
#ifdef HAVE_SYS_ENDIAN_H
#include <sys/endian.h>
#endif
#include <endian.h>
/* misc include group */
#include <stdarg.h>
/* network include group */
#include <sys/socket.h>
#include "openbsd-tree.h"
#include <netinet/in.h>
#include <netinet/ip.h>
#include <netinet/tcp.h>
#include <net/if.h>
#ifndef HAVE_NETLINK
#define RT_TABLE_MAIN 0
#define RT_TABLE_LOCAL RT_TABLE_MAIN
#endif /* HAVE_NETLINK */
#include <netdb.h>
#include <arpa/inet.h>
#ifdef HAVE_NETINET_IN_VAR_H
#include <netinet/in_var.h>
#endif /* HAVE_NETINET_IN_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_NETINET6_ND6_H
#include <netinet6/nd6.h>
#endif /* HAVE_NETINET6_ND6_H */
/* Local includes: */
#if !defined(__GNUC__)
#define __attribute__(x)
#endif /* !__GNUC__ */
#include <assert.h>
/*
* Add explicit static cast only when using a C++ compiler.
*/
#ifdef __cplusplus
#define static_cast(l, r) static_cast<decltype(l)>((r))
#else
#define static_cast(l, r) (r)
#endif
#ifdef __cplusplus
extern "C" {
#endif
/*
* RFC 3542 defines several macros for using struct cmsghdr.
* Here, we define those that are not present
*/
/*
* Internal defines, for use only in this file.
* These are likely wrong on other than ILP32 machines, so warn.
*/
#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 */
/*
* CMSG_SPACE and CMSG_LEN are required in RFC3542, but were new in that
* version.
*/
#ifndef CMSG_SPACE
#define CMSG_SPACE(l) \
(_CMSG_DATA_ALIGN(sizeof(struct cmsghdr)) + _CMSG_HDR_ALIGN(l))
#warning "assuming 4-byte alignment for CMSG_SPACE"
#endif /* CMSG_SPACE */
#ifndef CMSG_LEN
#define CMSG_LEN(l) (_CMSG_DATA_ALIGN(sizeof(struct cmsghdr)) + (l))
#warning "assuming 4-byte alignment for CMSG_LEN"
#endif /* CMSG_LEN */
/*
* 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__) && (__FreeBSD_version < 1100030)) || \
(defined(__OpenBSD__) && (OpenBSD < 200311))
#define HAVE_IP_HDRINCL_BSD_ORDER
#endif
/* autoconf macros for this are deprecated, just find endian.h */
#ifndef BYTE_ORDER
#error please locate an endian.h file appropriate to your platform
#endif
/* For old definition. */
#ifndef IN6_ARE_ADDR_EQUAL
#define IN6_ARE_ADDR_EQUAL IN6_IS_ADDR_EQUAL
#endif /* IN6_ARE_ADDR_EQUAL */
/* Zebra route's types are defined in route_types.h */
#include "lib/route_types.h"
#define strmatch(a,b) (!strcmp((a), (b)))
#if BYTE_ORDER == LITTLE_ENDIAN
#define htonll(x) (((uint64_t)htonl((x)&0xFFFFFFFF) << 32) | htonl((x) >> 32))
#define ntohll(x) (((uint64_t)ntohl((x)&0xFFFFFFFF) << 32) | ntohl((x) >> 32))
#else
#define htonll(x) (x)
#define ntohll(x) (x)
#endif
#ifndef INADDR_LOOPBACK
#define INADDR_LOOPBACK 0x7f000001 /* Internet address 127.0.0.1. */
#endif
/* Address family numbers from RFC1700. */
typedef enum {
AFI_UNSPEC = 0,
AFI_IP = 1,
AFI_IP6 = 2,
AFI_L2VPN = 3,
AFI_MAX = 4
} afi_t;
#define IS_VALID_AFI(a) ((a) > AFI_UNSPEC && (a) < AFI_MAX)
/* Subsequent Address Family Identifier. */
typedef enum {
SAFI_UNSPEC = 0,
SAFI_UNICAST = 1,
SAFI_MULTICAST = 2,
SAFI_MPLS_VPN = 3,
SAFI_ENCAP = 4,
SAFI_EVPN = 5,
SAFI_LABELED_UNICAST = 6,
SAFI_FLOWSPEC = 7,
SAFI_MAX = 8
} safi_t;
#define FOREACH_AFI_SAFI(afi, safi) \
for (afi = AFI_IP; afi < AFI_MAX; afi++) \
for (safi = SAFI_UNICAST; safi < SAFI_MAX; safi++)
#define FOREACH_AFI_SAFI_NSF(afi, safi) \
for (afi = AFI_IP; afi < AFI_MAX; afi++) \
for (safi = SAFI_UNICAST; safi <= SAFI_MPLS_VPN; safi++)
/* Flag manipulation macros. */
#define CHECK_FLAG(V,F) ((V) & (F))
#define SET_FLAG(V,F) (V) |= (F)
#define UNSET_FLAG(V,F) (V) &= ~(F)
#define RESET_FLAG(V) (V) = 0
#define COND_FLAG(V, F, C) ((C) ? (SET_FLAG(V, F)) : (UNSET_FLAG(V, F)))
/* Atomic flag manipulation macros. */
#define CHECK_FLAG_ATOMIC(PV, F) \
((atomic_load_explicit(PV, memory_order_seq_cst)) & (F))
#define SET_FLAG_ATOMIC(PV, F) \
((atomic_fetch_or_explicit(PV, (F), memory_order_seq_cst)))
#define UNSET_FLAG_ATOMIC(PV, F) \
((atomic_fetch_and_explicit(PV, ~(F), memory_order_seq_cst)))
#define RESET_FLAG_ATOMIC(PV) \
((atomic_store_explicit(PV, 0, memory_order_seq_cst)))
/* VRF ID type. */
typedef uint32_t vrf_id_t;
typedef uint32_t route_tag_t;
#define ROUTE_TAG_MAX UINT32_MAX
#define ROUTE_TAG_PRI PRIu32
#ifdef __cplusplus
}
#endif
#endif /* _ZEBRA_H */
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