1/*
2 * netlink-local.h		Local Netlink Interface
3 *
4 *	This library is free software; you can redistribute it and/or
5 *	modify it under the terms of the GNU Lesser General Public
6 *	License as published by the Free Software Foundation version 2.1
7 *	of the License.
8 *
9 * Copyright (c) 2003-2008 Thomas Graf <tgraf@suug.ch>
10 */
11
12#ifndef NETLINK_LOCAL_H_
13#define NETLINK_LOCAL_H_
14
15#include <stdio.h>
16#include <errno.h>
17#include <stdlib.h>
18#include <string.h>
19#include <unistd.h>
20#include <fcntl.h>
21#include <math.h>
22#include <time.h>
23#include <stdarg.h>
24#include <ctype.h>
25#include <sys/types.h>
26#include <sys/stat.h>
27#include <sys/socket.h>
28#include <inttypes.h>
29#include <assert.h>
30#include <limits.h>
31
32#include <arpa/inet.h>
33#include <netdb.h>
34
35#ifndef SOL_NETLINK
36#define SOL_NETLINK 270
37#endif
38
39#include <linux/types.h>
40
41/* local header copies */
42#include <linux/if.h>
43#include <linux/if_arp.h>
44#include <linux/if_ether.h>
45#include <linux/pkt_sched.h>
46#include <linux/pkt_cls.h>
47#include <linux/gen_stats.h>
48#include <linux/ip_mp_alg.h>
49
50#include <netlink/netlink.h>
51#include <netlink/handlers.h>
52#include <netlink/cache.h>
53#include <netlink/route/tc.h>
54#include <netlink/object-api.h>
55#include <netlink/cache-api.h>
56#include <netlink-types.h>
57
58struct trans_tbl {
59	int i;
60	const char *a;
61};
62
63#define __ADD(id, name) { .i = id, .a = #name },
64
65struct trans_list {
66	int i;
67	char *a;
68	struct nl_list_head list;
69};
70
71#define NL_DEBUG	1
72
73#define NL_DBG(LVL,FMT,ARG...) \
74	do {	\
75		if (LVL <= nl_debug) \
76			fprintf(stderr, "DBG<" #LVL ">: " FMT, ##ARG); \
77	} while (0)
78
79#define BUG()                            \
80	do {                                 \
81		fprintf(stderr, "BUG: %s:%d\n",  \
82			__FILE__, __LINE__);         \
83		assert(0);	\
84	} while (0)
85
86extern int __nl_read_num_str_file(const char *path,
87				  int (*cb)(long, const char *));
88
89extern int __trans_list_add(int, const char *, struct nl_list_head *);
90extern void __trans_list_clear(struct nl_list_head *);
91
92extern char *__type2str(int, char *, size_t, struct trans_tbl *, size_t);
93extern int __str2type(const char *, struct trans_tbl *, size_t);
94
95extern char *__list_type2str(int, char *, size_t, struct nl_list_head *);
96extern int __list_str2type(const char *, struct nl_list_head *);
97
98extern char *__flags2str(int, char *, size_t, struct trans_tbl *, size_t);
99extern int __str2flags(const char *, struct trans_tbl *, size_t);
100
101extern void dump_from_ops(struct nl_object *, struct nl_dump_params *);
102
103static inline struct nl_cache *dp_cache(struct nl_object *obj)
104{
105	if (obj->ce_cache == NULL)
106		return nl_cache_mngt_require(obj->ce_ops->oo_name);
107
108	return obj->ce_cache;
109}
110
111static inline int nl_cb_call(struct nl_cb *cb, int type, struct nl_msg *msg)
112{
113	return cb->cb_set[type](msg, cb->cb_args[type]);
114}
115
116#define ARRAY_SIZE(X) (sizeof(X) / sizeof((X)[0]))
117
118#define __init __attribute__ ((constructor))
119#define __exit __attribute__ ((destructor))
120#undef __deprecated
121#define __deprecated __attribute__ ((deprecated))
122
123#define min(x,y) ({ \
124	typeof(x) _x = (x);	\
125	typeof(y) _y = (y);	\
126	(void) (&_x == &_y);		\
127	_x < _y ? _x : _y; })
128
129#define max(x,y) ({ \
130	typeof(x) _x = (x);	\
131	typeof(y) _y = (y);	\
132	(void) (&_x == &_y);		\
133	_x > _y ? _x : _y; })
134
135#define min_t(type,x,y) \
136	({ type __x = (x); type __y = (y); __x < __y ? __x: __y; })
137#define max_t(type,x,y) \
138	({ type __x = (x); type __y = (y); __x > __y ? __x: __y; })
139
140extern int nl_cache_parse(struct nl_cache_ops *, struct sockaddr_nl *,
141			  struct nlmsghdr *, struct nl_parser_param *);
142
143
144static inline void rtnl_copy_ratespec(struct rtnl_ratespec *dst,
145				      struct tc_ratespec *src)
146{
147	dst->rs_cell_log = src->cell_log;
148	dst->rs_feature = src->feature;
149	dst->rs_addend = src->addend;
150	dst->rs_mpu = src->mpu;
151	dst->rs_rate = src->rate;
152}
153
154static inline void rtnl_rcopy_ratespec(struct tc_ratespec *dst,
155				       struct rtnl_ratespec *src)
156{
157	dst->cell_log = src->rs_cell_log;
158	dst->feature = src->rs_feature;
159	dst->addend = src->rs_addend;
160	dst->mpu = src->rs_mpu;
161	dst->rate = src->rs_rate;
162}
163
164static inline char *nl_cache_name(struct nl_cache *cache)
165{
166	return cache->c_ops ? cache->c_ops->co_name : "unknown";
167}
168
169#define GENL_FAMILY(id, name) \
170	{ \
171		{ id, NL_ACT_UNSPEC, name }, \
172		END_OF_MSGTYPES_LIST, \
173	}
174
175static inline int wait_for_ack(struct nl_sock *sk)
176{
177	if (sk->s_flags & NL_NO_AUTO_ACK)
178		return 0;
179	else
180		return nl_wait_for_ack(sk);
181}
182
183#endif
184