2 * lib/netfilter/log_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
12 * Copyright (c) 2008 Patrick McHardy <kaber@trash.net>
15 #include <netlink-local.h>
16 #include <netlink/netfilter/nfnl.h>
17 #include <netlink/netfilter/log.h>
20 #define LOG_ATTR_GROUP (1UL << 0)
21 #define LOG_ATTR_COPY_MODE (1UL << 1)
22 #define LOG_ATTR_COPY_RANGE (1UL << 3)
23 #define LOG_ATTR_FLUSH_TIMEOUT (1UL << 4)
24 #define LOG_ATTR_ALLOC_SIZE (1UL << 5)
25 #define LOG_ATTR_QUEUE_THRESHOLD (1UL << 6)
29 static void nfnl_log_dump(struct nl_object *a, struct nl_dump_params *p)
31 struct nfnl_log *log = (struct nfnl_log *) a;
36 if (log->ce_mask & LOG_ATTR_GROUP)
37 nl_dump(p, "group=%u ", log->log_group);
39 if (log->ce_mask & LOG_ATTR_COPY_MODE)
40 nl_dump(p, "copy_mode=%s ",
41 nfnl_log_copy_mode2str(log->log_copy_mode,
44 if (log->ce_mask & LOG_ATTR_COPY_RANGE)
45 nl_dump(p, "copy_range=%u ", log->log_copy_range);
47 if (log->ce_mask & LOG_ATTR_FLUSH_TIMEOUT)
48 nl_dump(p, "flush_timeout=%u ", log->log_flush_timeout);
50 if (log->ce_mask & LOG_ATTR_ALLOC_SIZE)
51 nl_dump(p, "alloc_size=%u ", log->log_alloc_size);
53 if (log->ce_mask & LOG_ATTR_QUEUE_THRESHOLD)
54 nl_dump(p, "queue_threshold=%u ", log->log_queue_threshold);
59 static struct trans_tbl copy_modes[] = {
60 __ADD(NFNL_LOG_COPY_NONE, none)
61 __ADD(NFNL_LOG_COPY_META, meta)
62 __ADD(NFNL_LOG_COPY_PACKET, packet)
65 char *nfnl_log_copy_mode2str(enum nfnl_log_copy_mode copy_mode, char *buf,
68 return __type2str(copy_mode, buf, len, copy_modes,
69 ARRAY_SIZE(copy_modes));
72 enum nfnl_log_copy_mode nfnl_log_str2copy_mode(const char *name)
74 return __str2type(name, copy_modes, ARRAY_SIZE(copy_modes));
78 * @name Allocation/Freeing
82 struct nfnl_log *nfnl_log_alloc(void)
84 return (struct nfnl_log *) nl_object_alloc(&log_obj_ops);
87 void nfnl_log_get(struct nfnl_log *log)
89 nl_object_get((struct nl_object *) log);
92 void nfnl_log_put(struct nfnl_log *log)
94 nl_object_put((struct nl_object *) log);
104 void nfnl_log_set_group(struct nfnl_log *log, uint16_t group)
106 log->log_group = group;
107 log->ce_mask |= LOG_ATTR_GROUP;
110 int nfnl_log_test_group(const struct nfnl_log *log)
112 return !!(log->ce_mask & LOG_ATTR_GROUP);
115 uint16_t nfnl_log_get_group(const struct nfnl_log *log)
117 return log->log_group;
120 void nfnl_log_set_copy_mode(struct nfnl_log *log, enum nfnl_log_copy_mode mode)
122 log->log_copy_mode = mode;
123 log->ce_mask |= LOG_ATTR_COPY_MODE;
126 int nfnl_log_test_copy_mode(const struct nfnl_log *log)
128 return !!(log->ce_mask & LOG_ATTR_COPY_MODE);
131 enum nfnl_log_copy_mode nfnl_log_get_copy_mode(const struct nfnl_log *log)
133 return log->log_copy_mode;
136 void nfnl_log_set_copy_range(struct nfnl_log *log, uint32_t copy_range)
138 log->log_copy_range = copy_range;
139 log->ce_mask |= LOG_ATTR_COPY_RANGE;
142 int nfnl_log_test_copy_range(const struct nfnl_log *log)
144 return !!(log->ce_mask & LOG_ATTR_COPY_RANGE);
147 uint32_t nfnl_log_get_copy_range(const struct nfnl_log *log)
149 return log->log_copy_range;
152 void nfnl_log_set_flush_timeout(struct nfnl_log *log, uint32_t timeout)
154 log->log_flush_timeout = timeout;
155 log->ce_mask |= LOG_ATTR_FLUSH_TIMEOUT;
158 int nfnl_log_test_flush_timeout(const struct nfnl_log *log)
160 return !!(log->ce_mask & LOG_ATTR_FLUSH_TIMEOUT);
163 uint32_t nfnl_log_get_flush_timeout(const struct nfnl_log *log)
165 return log->log_flush_timeout;
168 void nfnl_log_set_alloc_size(struct nfnl_log *log, uint32_t alloc_size)
170 log->log_alloc_size = alloc_size;
171 log->ce_mask |= LOG_ATTR_ALLOC_SIZE;
174 int nfnl_log_test_alloc_size(const struct nfnl_log *log)
176 return !!(log->ce_mask & LOG_ATTR_ALLOC_SIZE);
179 uint32_t nfnl_log_get_alloc_size(const struct nfnl_log *log)
181 return log->log_alloc_size;
184 void nfnl_log_set_queue_threshold(struct nfnl_log *log, uint32_t threshold)
186 log->log_queue_threshold = threshold;
187 log->ce_mask |= LOG_ATTR_QUEUE_THRESHOLD;
190 int nfnl_log_test_queue_threshold(const struct nfnl_log *log)
192 return !!(log->ce_mask & LOG_ATTR_QUEUE_THRESHOLD);
195 uint32_t nfnl_log_get_queue_threshold(const struct nfnl_log *log)
197 return log->log_queue_threshold;
200 /* We don't actually use the flags for anything yet since the
201 * nfnetlog_log interface truly sucks - it only contains the
202 * flag value, but not mask, so we would have to make assumptions
203 * about the supported flags.
205 void nfnl_log_set_flags(struct nfnl_log *log, unsigned int flags)
207 log->log_flags |= flags;
208 log->log_flag_mask |= flags;
211 void nfnl_log_unset_flags(struct nfnl_log *log, unsigned int flags)
213 log->log_flags &= ~flags;
214 log->log_flag_mask |= flags;
217 static struct trans_tbl log_flags[] = {
218 __ADD(NFNL_LOG_FLAG_SEQ, seq)
219 __ADD(NFNL_LOG_FLAG_SEQ_GLOBAL, seq_global)
222 char *nfnl_log_flags2str(unsigned int flags, char *buf, size_t len)
224 return __flags2str(flags, buf, len, log_flags, ARRAY_SIZE(log_flags));
227 unsigned int nfnl_log_str2flags(const char *name)
229 return __str2flags(name, log_flags, ARRAY_SIZE(log_flags));
232 static int nfnl_log_compare(struct nl_object *_a, struct nl_object *_b,
233 uint32_t attrs, int flags)
235 struct nfnl_log *a = (struct nfnl_log *) _a;
236 struct nfnl_log *b = (struct nfnl_log *) _b;
239 #define NFNL_LOG_DIFF(ATTR, EXPR) \
240 ATTR_DIFF(attrs, LOG_ATTR_##ATTR, a, b, EXPR)
241 #define NFNL_LOG_DIFF_VAL(ATTR, FIELD) \
242 NFNL_LOG_DIFF(ATTR, a->FIELD != b->FIELD)
244 diff |= NFNL_LOG_DIFF_VAL(GROUP, log_group);
245 diff |= NFNL_LOG_DIFF_VAL(COPY_MODE, log_copy_mode);
246 diff |= NFNL_LOG_DIFF_VAL(COPY_RANGE, log_copy_range);
247 diff |= NFNL_LOG_DIFF_VAL(FLUSH_TIMEOUT, log_flush_timeout);
248 diff |= NFNL_LOG_DIFF_VAL(ALLOC_SIZE, log_alloc_size);
249 diff |= NFNL_LOG_DIFF_VAL(QUEUE_THRESHOLD, log_queue_threshold);
252 #undef NFNL_LOG_DIFF_VAL
257 static struct trans_tbl nfnl_log_attrs[] = {
258 __ADD(LOG_ATTR_GROUP, group)
259 __ADD(LOG_ATTR_COPY_MODE, copy_mode)
260 __ADD(LOG_ATTR_COPY_RANGE, copy_range)
261 __ADD(LOG_ATTR_FLUSH_TIMEOUT, flush_timeout)
262 __ADD(LOG_ATTR_ALLOC_SIZE, alloc_size)
263 __ADD(LOG_ATTR_QUEUE_THRESHOLD, queue_threshold)
266 static char *nfnl_log_attrs2str(int attrs, char *buf, size_t len)
268 return __flags2str(attrs, buf, len, nfnl_log_attrs,
269 ARRAY_SIZE(nfnl_log_attrs));
274 struct nl_object_ops log_obj_ops = {
275 .oo_name = "netfilter/log",
276 .oo_size = sizeof(struct nfnl_log),
278 [NL_DUMP_LINE] = nfnl_log_dump,
279 [NL_DUMP_DETAILS] = nfnl_log_dump,
280 [NL_DUMP_STATS] = nfnl_log_dump,
282 .oo_compare = nfnl_log_compare,
283 .oo_attrs2str = nfnl_log_attrs2str,
284 .oo_id_attrs = LOG_ATTR_GROUP,