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00012 #ifndef NETLINK_ATTR_H_
00013 #define NETLINK_ATTR_H_
00014
00015 #include <netlink/netlink.h>
00016 #include <netlink/object.h>
00017 #include <netlink/addr.h>
00018 #include <netlink/data.h>
00019
00020 #ifdef __cplusplus
00021 extern "C" {
00022 #endif
00023
00024 struct nl_msg;
00025
00026
00027
00028
00029
00030
00031
00032
00033
00034
00035 enum {
00036 NLA_UNSPEC,
00037 NLA_U8,
00038 NLA_U16,
00039 NLA_U32,
00040 NLA_U64,
00041 NLA_STRING,
00042 NLA_FLAG,
00043 NLA_MSECS,
00044 NLA_NESTED,
00045 __NLA_TYPE_MAX,
00046 };
00047
00048
00049
00050
00051
00052 #define NLA_TYPE_MAX (__NLA_TYPE_MAX - 1)
00053
00054
00055
00056
00057
00058
00059
00060
00061
00062
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00064
00065
00066
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00071
00072
00073 struct nla_policy {
00074
00075 uint16_t type;
00076
00077
00078 uint16_t minlen;
00079
00080
00081 uint16_t maxlen;
00082 };
00083
00084
00085 extern int nla_attr_size(int payload);
00086 extern int nla_total_size(int payload);
00087 extern int nla_padlen(int payload);
00088
00089
00090 extern int nla_type(const struct nlattr *);
00091 extern void * nla_data(const struct nlattr *);
00092 extern int nla_len(const struct nlattr *);
00093
00094
00095 extern int nla_ok(const struct nlattr *, int);
00096 extern struct nlattr * nla_next(const struct nlattr *, int *);
00097 extern int nla_parse(struct nlattr **, int, struct nlattr *,
00098 int, struct nla_policy *);
00099 extern int nla_parse_nested(struct nlattr **, int, struct nlattr *,
00100 struct nla_policy *);
00101 extern int nla_validate(struct nlattr *, int, int,
00102 struct nla_policy *);
00103 extern struct nlattr * nla_find(struct nlattr *, int, int);
00104
00105
00106 extern int nla_memcpy(void *, struct nlattr *, int);
00107 extern size_t nla_strlcpy(char *, const struct nlattr *, size_t);
00108 extern int nla_memcmp(const struct nlattr *, const void *, size_t);
00109 extern int nla_strcmp(const struct nlattr *, const char *);
00110
00111
00112 extern struct nlattr * nla_reserve(struct nl_msg *, int, int);
00113 extern int nla_put(struct nl_msg *, int, int, const void *);
00114 extern int nla_put_nested(struct nl_msg *, int, struct nl_msg *);
00115 extern int nla_put_u8(struct nl_msg *, int, uint8_t);
00116 extern int nla_put_u16(struct nl_msg *, int, uint16_t);
00117 extern int nla_put_u32(struct nl_msg *, int, uint32_t);
00118 extern int nla_put_u64(struct nl_msg *, int, uint64_t);
00119 extern int nla_put_string(struct nl_msg *, int, const char *);
00120 extern int nla_put_flag(struct nl_msg *, int);
00121 extern int nla_put_msecs(struct nl_msg *, int, unsigned long);
00122 extern int nla_put_data(struct nl_msg *, int, struct nl_data *);
00123 extern int nla_put_addr(struct nl_msg *, int, struct nl_addr *);
00124
00125
00126 extern struct nlattr * nla_nest_start(struct nl_msg *, int);
00127 extern int nla_nest_end(struct nl_msg *, struct nlattr *);
00128
00129
00130 extern uint8_t nla_get_u8(struct nlattr *);
00131 extern uint16_t nla_get_u16(struct nlattr *);
00132 extern uint32_t nla_get_u32(struct nlattr *);
00133 extern uint64_t nla_get_u64(struct nlattr *);
00134 extern char * nla_get_string(struct nlattr *);
00135 extern int nla_get_flag(struct nlattr *);
00136 extern unsigned long nla_get_msecs(struct nlattr *);
00137 extern struct nl_data * nla_get_data(struct nlattr *);
00138 extern struct nl_addr * nla_get_addr(struct nlattr *, int);
00139
00140
00141
00142
00143
00144
00145
00146
00147
00148
00149
00150
00151
00152
00153
00154
00155
00156
00157 #define NLA_PUT(n, attrtype, attrlen, data) \
00158 do { \
00159 if (nla_put(n, attrtype, attrlen, data) < 0) \
00160 goto nla_put_failure; \
00161 } while(0)
00162
00163
00164
00165
00166
00167
00168
00169
00170
00171 #define NLA_PUT_TYPE(n, type, attrtype, value) \
00172 do { \
00173 type __tmp = value; \
00174 NLA_PUT(n, attrtype, sizeof(type), &__tmp); \
00175 } while(0)
00176
00177
00178
00179
00180
00181
00182
00183 #define NLA_PUT_U8(n, attrtype, value) \
00184 NLA_PUT_TYPE(n, uint8_t, attrtype, value)
00185
00186
00187
00188
00189
00190
00191
00192 #define NLA_PUT_U16(n, attrtype, value) \
00193 NLA_PUT_TYPE(n, uint16_t, attrtype, value)
00194
00195
00196
00197
00198
00199
00200
00201 #define NLA_PUT_U32(n, attrtype, value) \
00202 NLA_PUT_TYPE(n, uint32_t, attrtype, value)
00203
00204
00205
00206
00207
00208
00209
00210 #define NLA_PUT_U64(n, attrtype, value) \
00211 NLA_PUT_TYPE(n, uint64_t, attrtype, value)
00212
00213
00214
00215
00216
00217
00218
00219 #define NLA_PUT_STRING(n, attrtype, value) \
00220 NLA_PUT(n, attrtype, strlen(value) + 1, value)
00221
00222
00223
00224
00225
00226
00227 #define NLA_PUT_FLAG(n, attrtype) \
00228 NLA_PUT(n, attrtype, 0, NULL)
00229
00230
00231
00232
00233
00234
00235
00236 #define NLA_PUT_MSECS(n, attrtype, msecs) \
00237 NLA_PUT_U64(n, attrtype, msecs)
00238
00239
00240
00241
00242
00243
00244
00245 #define NLA_PUT_ADDR(n, attrtype, addr) \
00246 NLA_PUT(n, attrtype, nl_addr_get_len(addr), \
00247 nl_addr_get_binary_addr(addr))
00248
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00263
00264 #define nla_for_each_attr(pos, head, len, rem) \
00265 for (pos = head, rem = len; \
00266 nla_ok(pos, rem); \
00267 pos = nla_next(pos, &(rem)))
00268
00269
00270
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00272
00273
00274
00275
00276 #define nla_for_each_nested(pos, nla, rem) \
00277 for (pos = nla_data(nla), rem = nla_len(nla); \
00278 nla_ok(pos, rem); \
00279 pos = nla_next(pos, &(rem)))
00280
00281
00282
00283 #ifdef __cplusplus
00284 }
00285 #endif
00286
00287 #endif