Lines Matching defs:*
0 #include <stdio.h>
2 #include <string.h>
3 #include <syslog.h>
4 #include <xtables.h>
5 #include <linux/netfilter_ipv6/ip6t_LOG.h>
7 #ifndef IP6T_LOG_UID /* Old kernel */
8 #define IP6T_LOG_UID 0x08
9 #undef IP6T_LOG_MASK
10 #define IP6T_LOG_MASK 0x0f
11 #endif
13 #define LOG_DEFAULT_LEVEL LOG_WARNING
15 enum {
16 O_LOG_LEVEL = 0,
17 O_LOG_PREFIX,
18 O_LOG_TCPSEQ,
19 O_LOG_TCPOPTS,
20 O_LOG_IPOPTS,
21 O_LOG_UID,
22 O_LOG_MAC,
25 static void LOG_help(void)
27 printf(
28 "LOG target options:\n"
29 " --log-level level Level of logging (numeric or see syslog.conf)\n"
30 " --log-prefix prefix Prefix log messages with this prefix.\n"
31 " --log-tcp-sequence Log TCP sequence numbers.\n"
32 " --log-tcp-options Log TCP options.\n"
33 " --log-ip-options Log IP options.\n"
34 " --log-uid Log UID owning the local socket.\n"
35 " --log-macdecode Decode MAC addresses and protocol.\n");
38 #define s struct ip6t_log_info
39 static const struct xt_option_entry LOG_opts[] = {
40 {.name = "log-level", .id = O_LOG_LEVEL, .type = XTTYPE_SYSLOGLEVEL,
41 .flags = XTOPT_PUT, XTOPT_POINTER(s, level)},
42 {.name = "log-prefix", .id = O_LOG_PREFIX, .type = XTTYPE_STRING,
43 .flags = XTOPT_PUT, XTOPT_POINTER(s, prefix), .min = 1},
44 {.name = "log-tcp-sequence", .id = O_LOG_TCPSEQ, .type = XTTYPE_NONE},
45 {.name = "log-tcp-options", .id = O_LOG_TCPOPTS, .type = XTTYPE_NONE},
46 {.name = "log-ip-options", .id = O_LOG_IPOPTS, .type = XTTYPE_NONE},
47 {.name = "log-uid", .id = O_LOG_UID, .type = XTTYPE_NONE},
48 {.name = "log-macdecode", .id = O_LOG_MAC, .type = XTTYPE_NONE},
49 XTOPT_TABLEEND,
51 #undef s
53 static void LOG_init(struct xt_entry_target *t)
55 struct ip6t_log_info *loginfo = (struct ip6t_log_info *)t->data;
57 loginfo->level = LOG_DEFAULT_LEVEL;
61 struct ip6t_log_names {
62 const char *name;
63 unsigned int level;
66 static const struct ip6t_log_names ip6t_log_names[]
67 = { { .name = "alert", .level = LOG_ALERT },
68 { .name = "crit", .level = LOG_CRIT },
69 { .name = "debug", .level = LOG_DEBUG },
70 { .name = "emerg", .level = LOG_EMERG },
71 { .name = "error", .level = LOG_ERR }, /* DEPRECATED */
72 { .name = "info", .level = LOG_INFO },
73 { .name = "notice", .level = LOG_NOTICE },
74 { .name = "panic", .level = LOG_EMERG }, /* DEPRECATED */
75 { .name = "warning", .level = LOG_WARNING }
78 static void LOG_parse(struct xt_option_call *cb)
80 struct ip6t_log_info *info = cb->data;
82 xtables_option_parse(cb);
83 switch (cb->entry->id) {
84 case O_LOG_PREFIX:
85 if (strchr(cb->arg, '\n') != NULL)
86 xtables_error(PARAMETER_PROBLEM,
87 "Newlines not allowed in --log-prefix");
88 break;
89 case O_LOG_TCPSEQ:
90 info->logflags |= IP6T_LOG_TCPSEQ;
91 break;
92 case O_LOG_TCPOPTS:
93 info->logflags |= IP6T_LOG_TCPOPT;
94 break;
95 case O_LOG_IPOPTS:
96 info->logflags |= IP6T_LOG_IPOPT;
97 break;
98 case O_LOG_UID:
99 info->logflags |= IP6T_LOG_UID;
100 break;
101 case O_LOG_MAC:
102 info->logflags |= IP6T_LOG_MACDECODE;
103 break;
107 static void LOG_print(const void *ip, const struct xt_entry_target *target,
108 int numeric)
110 const struct ip6t_log_info *loginfo
111 = (const struct ip6t_log_info *)target->data;
112 unsigned int i = 0;
114 printf(" LOG");
115 if (numeric)
116 printf(" flags %u level %u",
117 loginfo->logflags, loginfo->level);
118 else {
119 for (i = 0; i < ARRAY_SIZE(ip6t_log_names); ++i)
120 if (loginfo->level == ip6t_log_names[i].level) {
121 printf(" level %s", ip6t_log_names[i].name);
122 break;
124 if (i == ARRAY_SIZE(ip6t_log_names))
125 printf(" UNKNOWN level %u", loginfo->level);
126 if (loginfo->logflags & IP6T_LOG_TCPSEQ)
127 printf(" tcp-sequence");
128 if (loginfo->logflags & IP6T_LOG_TCPOPT)
129 printf(" tcp-options");
130 if (loginfo->logflags & IP6T_LOG_IPOPT)
131 printf(" ip-options");
132 if (loginfo->logflags & IP6T_LOG_UID)
133 printf(" uid");
134 if (loginfo->logflags & IP6T_LOG_MACDECODE)
135 printf(" macdecode");
136 if (loginfo->logflags & ~(IP6T_LOG_MASK))
137 printf(" unknown-flags");
140 if (strcmp(loginfo->prefix, "") != 0)
141 printf(" prefix \"%s\"", loginfo->prefix);
144 static void LOG_save(const void *ip, const struct xt_entry_target *target)
146 const struct ip6t_log_info *loginfo
147 = (const struct ip6t_log_info *)target->data;
149 if (strcmp(loginfo->prefix, "") != 0)
150 printf(" --log-prefix \"%s\"", loginfo->prefix);
152 if (loginfo->level != LOG_DEFAULT_LEVEL)
153 printf(" --log-level %d", loginfo->level);
155 if (loginfo->logflags & IP6T_LOG_TCPSEQ)
156 printf(" --log-tcp-sequence");
157 if (loginfo->logflags & IP6T_LOG_TCPOPT)
158 printf(" --log-tcp-options");
159 if (loginfo->logflags & IP6T_LOG_IPOPT)
160 printf(" --log-ip-options");
161 if (loginfo->logflags & IP6T_LOG_UID)
162 printf(" --log-uid");
163 if (loginfo->logflags & IP6T_LOG_MACDECODE)
164 printf(" --log-macdecode");
167 static struct xtables_target log_tg6_reg = {
168 .name = "LOG",
169 .version = XTABLES_VERSION,
170 .family = NFPROTO_IPV6,
171 .size = XT_ALIGN(sizeof(struct ip6t_log_info)),
172 .userspacesize = XT_ALIGN(sizeof(struct ip6t_log_info)),
173 .help = LOG_help,
174 .init = LOG_init,
175 .print = LOG_print,
176 .save = LOG_save,
177 .x6_parse = LOG_parse,
178 .x6_options = LOG_opts,
181 void _init(void)
183 xtables_register_target(&log_tg6_reg);