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1 office 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 #ifndef _GNU_SOURCE
15 #define _GNU_SOURCE
16 #endif
17  
18 #include <stdio.h>
19 #include <errno.h>
20 #include <stdlib.h>
21 #include <string.h>
22 #include <unistd.h>
23 #include <fcntl.h>
24 #include <math.h>
25 #include <time.h>
26 #include <stdarg.h>
27 #include <ctype.h>
28 #include <sys/types.h>
29 #include <sys/socket.h>
30 #include <inttypes.h>
31 #include <assert.h>
32 #include <limits.h>
33  
34 #include <arpa/inet.h>
35 #include <netdb.h>
36  
37 #ifndef SOL_NETLINK
38 #define SOL_NETLINK 270
39 #endif
40  
41 #include <linux/types.h>
42  
43 /* local header copies */
44 #include <linux/if.h>
45 #include <linux/if_arp.h>
46 #include <linux/if_ether.h>
47 #include <linux/pkt_sched.h>
48 #include <linux/pkt_cls.h>
49 #include <linux/gen_stats.h>
50  
51 #include <netlink/netlink.h>
52 #include <netlink/handlers.h>
53 #include <netlink/cache.h>
54 #include <netlink/object-api.h>
55 #include <netlink/cache-api.h>
56 #include <netlink-types.h>
57  
58 struct trans_tbl {
59 int i;
60 const char *a;
61 };
62  
63 #define __ADD(id, name) { .i = id, .a = #name },
64  
65 struct 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 {} while (0)
75  
76 #define BUG() \
77 do { \
78 fprintf(stderr, "BUG: %s:%d\n", \
79 __FILE__, __LINE__); \
80 assert(0); \
81 } while (0)
82  
83 extern int __nl_read_num_str_file(const char *path,
84 int (*cb)(long, const char *));
85  
86 extern int __trans_list_add(int, const char *, struct nl_list_head *);
87 extern void __trans_list_clear(struct nl_list_head *);
88  
89 extern char *__type2str(int, char *, size_t, struct trans_tbl *, size_t);
90 extern int __str2type(const char *, struct trans_tbl *, size_t);
91  
92 extern char *__list_type2str(int, char *, size_t, struct nl_list_head *);
93 extern int __list_str2type(const char *, struct nl_list_head *);
94  
95 extern char *__flags2str(int, char *, size_t, struct trans_tbl *, size_t);
96 extern int __str2flags(const char *, struct trans_tbl *, size_t);
97  
98 extern void dump_from_ops(struct nl_object *, struct nl_dump_params *);
99  
100 #ifdef disabled
101 static inline struct nl_cache *dp_cache(struct nl_object *obj)
102 {
103 if (obj->ce_cache == NULL)
104 return nl_cache_mngt_require(obj->ce_ops->oo_name);
105  
106 return obj->ce_cache;
107 }
108 #endif
109  
110 static inline int nl_cb_call(struct nl_cb *cb, int type, struct nl_msg *msg)
111 {
112 return cb->cb_set[type](msg, cb->cb_args[type]);
113 }
114  
115 #define ARRAY_SIZE(X) (sizeof(X) / sizeof((X)[0]))
116 #ifndef offsetof
117 #define offsetof(TYPE, MEMBER) ((size_t) &((TYPE *)0)->MEMBER)
118 #endif
119  
120 #define __init __attribute__ ((constructor))
121 #define __exit __attribute__ ((destructor))
122 #undef __deprecated
123 #define __deprecated __attribute__ ((deprecated))
124  
125 #define min(x,y) ({ \
126 typeof(x) _x = (x); \
127 typeof(y) _y = (y); \
128 (void) (&_x == &_y); \
129 _x < _y ? _x : _y; })
130  
131 #define max(x,y) ({ \
132 typeof(x) _x = (x); \
133 typeof(y) _y = (y); \
134 (void) (&_x == &_y); \
135 _x > _y ? _x : _y; })
136  
137 extern int nl_cache_parse(struct nl_cache_ops *, struct sockaddr_nl *,
138 struct nlmsghdr *, struct nl_parser_param *);
139  
140  
141 static inline char *nl_cache_name(struct nl_cache *cache)
142 {
143 return cache->c_ops ? cache->c_ops->co_name : "unknown";
144 }
145  
146 #define GENL_FAMILY(id, name) \
147 { \
148 { id, NL_ACT_UNSPEC, name }, \
149 END_OF_MSGTYPES_LIST, \
150 }
151  
152 static inline int wait_for_ack(struct nl_sock *sk)
153 {
154 if (sk->s_flags & NL_NO_AUTO_ACK)
155 return 0;
156 else
157 return nl_wait_for_ack(sk);
158 }
159  
160 #endif