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290 lines
6.9 KiB
290 lines
6.9 KiB
/*
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* netlink-private/netlink.h Local Netlink Interface
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation version 2.1
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* of the License.
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*
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* Copyright (c) 2003-2013 Thomas Graf <tgraf@suug.ch>
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*/
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#ifndef NETLINK_LOCAL_H_
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#define NETLINK_LOCAL_H_
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#include <stdio.h>
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#include <errno.h>
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#include <stdlib.h>
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#include <string.h>
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#include <unistd.h>
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#include <fcntl.h>
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#include <time.h>
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#include <stdarg.h>
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#include <ctype.h>
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#include <sys/types.h>
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#include <sys/stat.h>
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#include <sys/socket.h>
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#include <inttypes.h>
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#include <assert.h>
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#include <limits.h>
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#include <search.h>
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#include <arpa/inet.h>
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#include <netdb.h>
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#include <defs.h>
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#ifndef SOL_NETLINK
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#define SOL_NETLINK 270
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#endif
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#include <linux/types.h>
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/* local header copies */
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#include <linux/if.h>
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#include <linux/if_arp.h>
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#include <linux/if_ether.h>
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#include <linux/ethtool.h>
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#include <linux/pkt_sched.h>
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#include <linux/pkt_cls.h>
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#include <linux/gen_stats.h>
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#include <linux/atm.h>
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#include <linux/ip.h>
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#include <linux/ipv6.h>
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#include <linux/snmp.h>
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#include <linux/xfrm.h>
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#ifndef DISABLE_PTHREADS
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#include <pthread.h>
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#endif
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#include <netlink/netlink.h>
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#include <netlink/handlers.h>
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#include <netlink/cache.h>
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#include <netlink/route/tc.h>
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#include <netlink-private/object-api.h>
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#include <netlink-private/cache-api.h>
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#include <netlink-private/types.h>
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#define NSEC_PER_SEC 1000000000L
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struct trans_tbl {
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uint64_t i;
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const char *a;
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};
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#define __ADD(id, name) { .i = id, .a = #name }
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struct trans_list {
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int i;
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char *a;
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struct nl_list_head list;
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};
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#ifdef NL_DEBUG
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#define NL_DBG(LVL,FMT,ARG...) \
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do { \
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if (LVL <= nl_debug) { \
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int _errsv = errno; \
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fprintf(stderr, \
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"DBG<" #LVL ">%20s:%-4u %s: " FMT, \
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__FILE__, __LINE__, \
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__func__, ##ARG); \
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errno = _errsv; \
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} \
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} while (0)
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#else /* NL_DEBUG */
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#define NL_DBG(LVL,FMT,ARG...) do { } while(0)
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#endif /* NL_DEBUG */
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#define BUG() \
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do { \
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fprintf(stderr, "BUG at file position %s:%d:%s\n", \
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__FILE__, __LINE__, __func__); \
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assert(0); \
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} while (0)
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#define BUG_ON(condition) \
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do { \
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if (condition) \
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BUG(); \
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} while (0)
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#define APPBUG(msg) \
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do { \
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fprintf(stderr, "APPLICATION BUG: %s:%d:%s: %s\n", \
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__FILE__, __LINE__, __func__, msg); \
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assert(0); \
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} while(0)
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extern int __nl_read_num_str_file(const char *path,
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int (*cb)(long, const char *));
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extern int __trans_list_add(int, const char *, struct nl_list_head *);
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extern void __trans_list_clear(struct nl_list_head *);
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extern char *__type2str(int, char *, size_t, const struct trans_tbl *, size_t);
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extern int __str2type(const char *, const struct trans_tbl *, size_t);
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extern char *__list_type2str(int, char *, size_t, struct nl_list_head *);
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extern int __list_str2type(const char *, struct nl_list_head *);
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extern char *__flags2str(int, char *, size_t, const struct trans_tbl *, size_t);
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extern int __str2flags(const char *, const struct trans_tbl *, size_t);
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extern void dump_from_ops(struct nl_object *, struct nl_dump_params *);
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extern struct rtnl_link *link_lookup(struct nl_cache *cache, int ifindex);
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static inline int nl_cb_call(struct nl_cb *cb, enum nl_cb_type type, struct nl_msg *msg)
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{
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int ret;
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cb->cb_active = type;
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ret = cb->cb_set[type](msg, cb->cb_args[type]);
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cb->cb_active = __NL_CB_TYPE_MAX;
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return ret;
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}
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#define ARRAY_SIZE(X) (sizeof(X) / sizeof((X)[0]))
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/* This is also defined in stddef.h */
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#ifndef offsetof
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#define offsetof(TYPE, MEMBER) ((size_t) &((TYPE *)0)->MEMBER)
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#endif
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#define __init __attribute__ ((constructor))
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#define __exit __attribute__ ((destructor))
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#undef __deprecated
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#define __deprecated __attribute__ ((deprecated))
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#define min(x,y) ({ \
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__typeof__(x) _x = (x); \
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__typeof__(y) _y = (y); \
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(void) (&_x == &_y); \
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_x < _y ? _x : _y; })
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#define max(x,y) ({ \
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__typeof__(x) _x = (x); \
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__typeof__(y) _y = (y); \
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(void) (&_x == &_y); \
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_x > _y ? _x : _y; })
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#define min_t(type,x,y) \
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({ type __x = (x); type __y = (y); __x < __y ? __x: __y; })
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#define max_t(type,x,y) \
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({ type __x = (x); type __y = (y); __x > __y ? __x: __y; })
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extern int nl_cache_parse(struct nl_cache_ops *, struct sockaddr_nl *,
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struct nlmsghdr *, struct nl_parser_param *);
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static inline void rtnl_copy_ratespec(struct rtnl_ratespec *dst,
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struct tc_ratespec *src)
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{
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dst->rs_cell_log = src->cell_log;
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dst->rs_overhead = src->overhead;
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dst->rs_cell_align = src->cell_align;
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dst->rs_mpu = src->mpu;
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dst->rs_rate64 = src->rate;
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}
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static inline void rtnl_rcopy_ratespec(struct tc_ratespec *dst,
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struct rtnl_ratespec *src)
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{
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dst->cell_log = src->rs_cell_log;
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dst->overhead = src->rs_overhead;
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dst->cell_align = src->rs_cell_align;
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dst->mpu = src->rs_mpu;
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dst->rate = src->rs_rate64 > 0xFFFFFFFFull ? 0xFFFFFFFFull : (uint32_t) src->rs_rate64;
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}
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static inline const char *nl_cache_name(struct nl_cache *cache)
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{
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return cache->c_ops ? cache->c_ops->co_name : "unknown";
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}
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#define GENL_FAMILY(id, name) \
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{ \
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{ id, NL_ACT_UNSPEC, name }, \
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END_OF_MSGTYPES_LIST, \
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}
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static inline int wait_for_ack(struct nl_sock *sk)
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{
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if (sk->s_flags & NL_NO_AUTO_ACK)
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return 0;
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else
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return nl_wait_for_ack(sk);
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}
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static inline int build_sysconf_path(char **strp, const char *filename)
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{
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char *sysconfdir;
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sysconfdir = getenv("NLSYSCONFDIR");
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if (!sysconfdir)
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sysconfdir = SYSCONFDIR;
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return asprintf(strp, "%s/%s", sysconfdir, filename);
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}
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#ifndef DISABLE_PTHREADS
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#define NL_LOCK(NAME) pthread_mutex_t (NAME) = PTHREAD_MUTEX_INITIALIZER
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#define NL_RW_LOCK(NAME) pthread_rwlock_t (NAME) = PTHREAD_RWLOCK_INITIALIZER
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static inline void nl_lock(pthread_mutex_t *lock)
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{
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pthread_mutex_lock(lock);
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}
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static inline void nl_unlock(pthread_mutex_t *lock)
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{
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pthread_mutex_unlock(lock);
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}
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static inline void nl_read_lock(pthread_rwlock_t *lock)
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{
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pthread_rwlock_rdlock(lock);
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}
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static inline void nl_read_unlock(pthread_rwlock_t *lock)
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{
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pthread_rwlock_unlock(lock);
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}
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static inline void nl_write_lock(pthread_rwlock_t *lock)
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{
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pthread_rwlock_wrlock(lock);
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}
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static inline void nl_write_unlock(pthread_rwlock_t *lock)
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{
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pthread_rwlock_unlock(lock);
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}
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#else
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#define NL_LOCK(NAME) int __unused_lock_ ##NAME __attribute__((unused))
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#define NL_RW_LOCK(NAME) int __unused_lock_ ##NAME __attribute__((unused))
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#define nl_lock(LOCK) do { } while(0)
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#define nl_unlock(LOCK) do { } while(0)
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#define nl_read_lock(LOCK) do { } while(0)
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#define nl_read_unlock(LOCK) do { } while(0)
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#define nl_write_lock(LOCK) do { } while(0)
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#define nl_write_unlock(LOCK) do { } while(0)
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#endif
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static inline int rtnl_tc_calc_txtime64(int bufsize, uint64_t rate)
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{
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return ((double) bufsize / (double) rate) * 1000000.0;
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}
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static inline int rtnl_tc_calc_bufsize64(int txtime, uint64_t rate)
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{
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return ((double) txtime * (double) rate) / 1000000.0;
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}
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#endif
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