2 * lib/netfilter/log_msg_obj.c Netfilter Log Object
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
9 * Copyright (c) 2003-2008 Thomas Graf <tgraf@suug.ch>
10 * Copyright (c) 2007 Philip Craig <philipc@snapgear.com>
11 * Copyright (c) 2007 Secure Computing Corporation
14 #include <netlink-local.h>
15 #include <netlink/netfilter/nfnl.h>
16 #include <netlink/netfilter/netfilter.h>
17 #include <netlink/netfilter/log_msg.h>
20 #define LOG_MSG_ATTR_FAMILY (1UL << 0)
21 #define LOG_MSG_ATTR_HWPROTO (1UL << 1)
22 #define LOG_MSG_ATTR_HOOK (1UL << 2)
23 #define LOG_MSG_ATTR_MARK (1UL << 3)
24 #define LOG_MSG_ATTR_TIMESTAMP (1UL << 4)
25 #define LOG_MSG_ATTR_INDEV (1UL << 5)
26 #define LOG_MSG_ATTR_OUTDEV (1UL << 6)
27 #define LOG_MSG_ATTR_PHYSINDEV (1UL << 7)
28 #define LOG_MSG_ATTR_PHYSOUTDEV (1UL << 8)
29 #define LOG_MSG_ATTR_HWADDR (1UL << 9)
30 #define LOG_MSG_ATTR_PAYLOAD (1UL << 10)
31 #define LOG_MSG_ATTR_PREFIX (1UL << 11)
32 #define LOG_MSG_ATTR_UID (1UL << 12)
33 #define LOG_MSG_ATTR_GID (1UL << 13)
34 #define LOG_MSG_ATTR_SEQ (1UL << 14)
35 #define LOG_MSG_ATTR_SEQ_GLOBAL (1UL << 15)
38 static void log_msg_free_data(struct nl_object *c)
40 struct nfnl_log_msg *msg = (struct nfnl_log_msg *) c;
45 free(msg->log_msg_payload);
46 free(msg->log_msg_prefix);
49 static int log_msg_clone(struct nl_object *_dst, struct nl_object *_src)
51 struct nfnl_log_msg *dst = (struct nfnl_log_msg *) _dst;
52 struct nfnl_log_msg *src = (struct nfnl_log_msg *) _src;
55 if (src->log_msg_payload) {
56 err = nfnl_log_msg_set_payload(dst, src->log_msg_payload,
57 src->log_msg_payload_len);
62 if (src->log_msg_prefix) {
63 err = nfnl_log_msg_set_prefix(dst, src->log_msg_prefix);
73 static void log_msg_dump(struct nl_object *a, struct nl_dump_params *p)
75 struct nfnl_log_msg *msg = (struct nfnl_log_msg *) a;
76 struct nl_cache *link_cache;
79 link_cache = nl_cache_mngt_require("route/link");
83 if (msg->ce_mask & LOG_MSG_ATTR_PREFIX)
84 nl_dump(p, "%s", msg->log_msg_prefix);
86 if (msg->ce_mask & LOG_MSG_ATTR_INDEV) {
89 rtnl_link_i2name(link_cache,
93 nl_dump(p, "IN=%d ", msg->log_msg_indev);
96 if (msg->ce_mask & LOG_MSG_ATTR_PHYSINDEV) {
98 nl_dump(p, "PHYSIN=%s ",
99 rtnl_link_i2name(link_cache,
100 msg->log_msg_physindev,
103 nl_dump(p, "IN=%d ", msg->log_msg_physindev);
106 if (msg->ce_mask & LOG_MSG_ATTR_OUTDEV) {
108 nl_dump(p, "OUT=%s ",
109 rtnl_link_i2name(link_cache,
113 nl_dump(p, "OUT=%d ", msg->log_msg_outdev);
116 if (msg->ce_mask & LOG_MSG_ATTR_PHYSOUTDEV) {
118 nl_dump(p, "PHYSOUT=%s ",
119 rtnl_link_i2name(link_cache,
120 msg->log_msg_physoutdev,
123 nl_dump(p, "PHYSOUT=%d ", msg->log_msg_physoutdev);
126 if (msg->ce_mask & LOG_MSG_ATTR_HWADDR) {
130 for (i = 0; i < msg->log_msg_hwaddr_len; i++)
131 nl_dump(p, "%c%02x", i?':':'=', msg->log_msg_hwaddr[i]);
135 /* FIXME: parse the payload to get iptables LOG compatible format */
137 if (msg->ce_mask & LOG_MSG_ATTR_FAMILY)
138 nl_dump(p, "FAMILY=%s ",
139 nl_af2str(msg->log_msg_family, buf, sizeof(buf)));
141 if (msg->ce_mask & LOG_MSG_ATTR_HWPROTO)
142 nl_dump(p, "HWPROTO=%s ",
143 nl_ether_proto2str(ntohs(msg->log_msg_hwproto),
146 if (msg->ce_mask & LOG_MSG_ATTR_HOOK)
147 nl_dump(p, "HOOK=%s ",
148 nfnl_inet_hook2str(msg->log_msg_hook,
151 if (msg->ce_mask & LOG_MSG_ATTR_MARK)
152 nl_dump(p, "MARK=%u ", msg->log_msg_mark);
154 if (msg->ce_mask & LOG_MSG_ATTR_PAYLOAD)
155 nl_dump(p, "PAYLOADLEN=%d ", msg->log_msg_payload_len);
157 if (msg->ce_mask & LOG_MSG_ATTR_UID)
158 nl_dump(p, "UID=%u ", msg->log_msg_uid);
160 if (msg->ce_mask & LOG_MSG_ATTR_GID)
161 nl_dump(p, "GID=%u ", msg->log_msg_gid);
163 if (msg->ce_mask & LOG_MSG_ATTR_SEQ)
164 nl_dump(p, "SEQ=%d ", msg->log_msg_seq);
166 if (msg->ce_mask & LOG_MSG_ATTR_SEQ_GLOBAL)
167 nl_dump(p, "SEQGLOBAL=%d ", msg->log_msg_seq_global);
173 * @name Allocation/Freeing
177 struct nfnl_log_msg *nfnl_log_msg_alloc(void)
179 return (struct nfnl_log_msg *) nl_object_alloc(&log_msg_obj_ops);
182 void nfnl_log_msg_get(struct nfnl_log_msg *msg)
184 nl_object_get((struct nl_object *) msg);
187 void nfnl_log_msg_put(struct nfnl_log_msg *msg)
189 nl_object_put((struct nl_object *) msg);
199 void nfnl_log_msg_set_family(struct nfnl_log_msg *msg, uint8_t family)
201 msg->log_msg_family = family;
202 msg->ce_mask |= LOG_MSG_ATTR_FAMILY;
205 uint8_t nfnl_log_msg_get_family(const struct nfnl_log_msg *msg)
207 if (msg->ce_mask & LOG_MSG_ATTR_FAMILY)
208 return msg->log_msg_family;
213 void nfnl_log_msg_set_hwproto(struct nfnl_log_msg *msg, uint16_t hwproto)
215 msg->log_msg_hwproto = hwproto;
216 msg->ce_mask |= LOG_MSG_ATTR_HWPROTO;
219 int nfnl_log_msg_test_hwproto(const struct nfnl_log_msg *msg)
221 return !!(msg->ce_mask & LOG_MSG_ATTR_HWPROTO);
224 uint16_t nfnl_log_msg_get_hwproto(const struct nfnl_log_msg *msg)
226 return msg->log_msg_hwproto;
229 void nfnl_log_msg_set_hook(struct nfnl_log_msg *msg, uint8_t hook)
231 msg->log_msg_hook = hook;
232 msg->ce_mask |= LOG_MSG_ATTR_HOOK;
235 int nfnl_log_msg_test_hook(const struct nfnl_log_msg *msg)
237 return !!(msg->ce_mask & LOG_MSG_ATTR_HOOK);
240 uint8_t nfnl_log_msg_get_hook(const struct nfnl_log_msg *msg)
242 return msg->log_msg_hook;
245 void nfnl_log_msg_set_mark(struct nfnl_log_msg *msg, uint32_t mark)
247 msg->log_msg_mark = mark;
248 msg->ce_mask |= LOG_MSG_ATTR_MARK;
251 int nfnl_log_msg_test_mark(const struct nfnl_log_msg *msg)
253 return !!(msg->ce_mask & LOG_MSG_ATTR_MARK);
256 uint32_t nfnl_log_msg_get_mark(const struct nfnl_log_msg *msg)
258 return msg->log_msg_mark;
261 void nfnl_log_msg_set_timestamp(struct nfnl_log_msg *msg, struct timeval *tv)
263 msg->log_msg_timestamp.tv_sec = tv->tv_sec;
264 msg->log_msg_timestamp.tv_usec = tv->tv_usec;
265 msg->ce_mask |= LOG_MSG_ATTR_TIMESTAMP;
268 const struct timeval *nfnl_log_msg_get_timestamp(const struct nfnl_log_msg *msg)
270 if (!(msg->ce_mask & LOG_MSG_ATTR_TIMESTAMP))
272 return &msg->log_msg_timestamp;
275 void nfnl_log_msg_set_indev(struct nfnl_log_msg *msg, uint32_t indev)
277 msg->log_msg_indev = indev;
278 msg->ce_mask |= LOG_MSG_ATTR_INDEV;
281 uint32_t nfnl_log_msg_get_indev(const struct nfnl_log_msg *msg)
283 return msg->log_msg_indev;
286 void nfnl_log_msg_set_outdev(struct nfnl_log_msg *msg, uint32_t outdev)
288 msg->log_msg_outdev = outdev;
289 msg->ce_mask |= LOG_MSG_ATTR_OUTDEV;
292 uint32_t nfnl_log_msg_get_outdev(const struct nfnl_log_msg *msg)
294 return msg->log_msg_outdev;
297 void nfnl_log_msg_set_physindev(struct nfnl_log_msg *msg, uint32_t physindev)
299 msg->log_msg_physindev = physindev;
300 msg->ce_mask |= LOG_MSG_ATTR_PHYSINDEV;
303 uint32_t nfnl_log_msg_get_physindev(const struct nfnl_log_msg *msg)
305 return msg->log_msg_physindev;
308 void nfnl_log_msg_set_physoutdev(struct nfnl_log_msg *msg, uint32_t physoutdev)
310 msg->log_msg_physoutdev = physoutdev;
311 msg->ce_mask |= LOG_MSG_ATTR_PHYSOUTDEV;
314 uint32_t nfnl_log_msg_get_physoutdev(const struct nfnl_log_msg *msg)
316 return msg->log_msg_physoutdev;
319 void nfnl_log_msg_set_hwaddr(struct nfnl_log_msg *msg, uint8_t *hwaddr, int len)
321 if (len > sizeof(msg->log_msg_hwaddr))
322 len = sizeof(msg->log_msg_hwaddr);
323 msg->log_msg_hwaddr_len = len;
324 memcpy(msg->log_msg_hwaddr, hwaddr, len);
325 msg->ce_mask |= LOG_MSG_ATTR_HWADDR;
328 const uint8_t *nfnl_log_msg_get_hwaddr(const struct nfnl_log_msg *msg, int *len)
330 if (!(msg->ce_mask & LOG_MSG_ATTR_HWADDR)) {
335 *len = msg->log_msg_hwaddr_len;
336 return msg->log_msg_hwaddr;
339 int nfnl_log_msg_set_payload(struct nfnl_log_msg *msg, uint8_t *payload, int len)
341 free(msg->log_msg_payload);
342 msg->log_msg_payload = malloc(len);
343 if (!msg->log_msg_payload)
346 memcpy(msg->log_msg_payload, payload, len);
347 msg->log_msg_payload_len = len;
348 msg->ce_mask |= LOG_MSG_ATTR_PAYLOAD;
352 const void *nfnl_log_msg_get_payload(const struct nfnl_log_msg *msg, int *len)
354 if (!(msg->ce_mask & LOG_MSG_ATTR_PAYLOAD)) {
359 *len = msg->log_msg_payload_len;
360 return msg->log_msg_payload;
363 int nfnl_log_msg_set_prefix(struct nfnl_log_msg *msg, void *prefix)
365 free(msg->log_msg_prefix);
366 msg->log_msg_prefix = strdup(prefix);
367 if (!msg->log_msg_prefix)
370 msg->ce_mask |= LOG_MSG_ATTR_PREFIX;
374 const char *nfnl_log_msg_get_prefix(const struct nfnl_log_msg *msg)
376 return msg->log_msg_prefix;
379 void nfnl_log_msg_set_uid(struct nfnl_log_msg *msg, uint32_t uid)
381 msg->log_msg_uid = uid;
382 msg->ce_mask |= LOG_MSG_ATTR_UID;
385 int nfnl_log_msg_test_uid(const struct nfnl_log_msg *msg)
387 return !!(msg->ce_mask & LOG_MSG_ATTR_UID);
390 uint32_t nfnl_log_msg_get_uid(const struct nfnl_log_msg *msg)
392 return msg->log_msg_uid;
395 void nfnl_log_msg_set_gid(struct nfnl_log_msg *msg, uint32_t gid)
397 msg->log_msg_gid = gid;
398 msg->ce_mask |= LOG_MSG_ATTR_GID;
401 int nfnl_log_msg_test_gid(const struct nfnl_log_msg *msg)
403 return !!(msg->ce_mask & LOG_MSG_ATTR_GID);
406 uint32_t nfnl_log_msg_get_gid(const struct nfnl_log_msg *msg)
408 return msg->log_msg_gid;
412 void nfnl_log_msg_set_seq(struct nfnl_log_msg *msg, uint32_t seq)
414 msg->log_msg_seq = seq;
415 msg->ce_mask |= LOG_MSG_ATTR_SEQ;
418 int nfnl_log_msg_test_seq(const struct nfnl_log_msg *msg)
420 return !!(msg->ce_mask & LOG_MSG_ATTR_SEQ);
423 uint32_t nfnl_log_msg_get_seq(const struct nfnl_log_msg *msg)
425 return msg->log_msg_seq;
428 void nfnl_log_msg_set_seq_global(struct nfnl_log_msg *msg, uint32_t seq_global)
430 msg->log_msg_seq_global = seq_global;
431 msg->ce_mask |= LOG_MSG_ATTR_SEQ_GLOBAL;
434 int nfnl_log_msg_test_seq_global(const struct nfnl_log_msg *msg)
436 return !!(msg->ce_mask & LOG_MSG_ATTR_SEQ_GLOBAL);
439 uint32_t nfnl_log_msg_get_seq_global(const struct nfnl_log_msg *msg)
441 return msg->log_msg_seq_global;
446 struct nl_object_ops log_msg_obj_ops = {
447 .oo_name = "netfilter/log_msg",
448 .oo_size = sizeof(struct nfnl_log_msg),
449 .oo_free_data = log_msg_free_data,
450 .oo_clone = log_msg_clone,
452 [NL_DUMP_LINE] = log_msg_dump,
453 [NL_DUMP_DETAILS] = log_msg_dump,
454 [NL_DUMP_STATS] = log_msg_dump,