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Diffstat (limited to 'extensions/libipt_ULOG.c')
-rw-r--r--extensions/libipt_ULOG.c150
1 files changed, 40 insertions, 110 deletions
diff --git a/extensions/libipt_ULOG.c b/extensions/libipt_ULOG.c
index 4d009b7..fafb220 100644
--- a/extensions/libipt_ULOG.c
+++ b/extensions/libipt_ULOG.c
@@ -10,27 +10,17 @@
* libipt_ULOG.c,v 1.7 2001/01/30 11:55:02 laforge Exp
*/
#include <stdio.h>
-#include <netdb.h>
#include <string.h>
-#include <stdlib.h>
-#include <syslog.h>
-#include <getopt.h>
#include <xtables.h>
/* For 64bit kernel / 32bit userspace */
#include <linux/netfilter_ipv4/ipt_ULOG.h>
-
-static void print_groups(unsigned int gmask)
-{
- int b;
- unsigned int test;
-
- for (b = 31; b >= 0; b--) {
- test = (1 << b);
- if (gmask & test)
- printf("%d ", b + 1);
- }
-}
+enum {
+ O_ULOG_NLGROUP = 0,
+ O_ULOG_PREFIX,
+ O_ULOG_CPRANGE,
+ O_ULOG_QTHR,
+};
static void ULOG_help(void)
{
@@ -41,12 +31,16 @@ static void ULOG_help(void)
" --ulog-prefix prefix Prefix log messages with this prefix.\n");
}
-static const struct option ULOG_opts[] = {
- {"ulog-nlgroup", 1, NULL, '!'},
- {"ulog-prefix", 1, NULL, '#'},
- {"ulog-cprange", 1, NULL, 'A'},
- {"ulog-qthreshold", 1, NULL, 'B'},
- { .name = NULL }
+static const struct xt_option_entry ULOG_opts[] = {
+ {.name = "ulog-nlgroup", .id = O_ULOG_NLGROUP, .type = XTTYPE_UINT8,
+ .min = 1, .max = 32},
+ {.name = "ulog-prefix", .id = O_ULOG_PREFIX, .type = XTTYPE_STRING,
+ .flags = XTOPT_PUT, XTOPT_POINTER(struct ipt_ulog_info, prefix),
+ .min = 1},
+ {.name = "ulog-cprange", .id = O_ULOG_CPRANGE, .type = XTTYPE_UINT64},
+ {.name = "ulog-qthreshold", .id = O_ULOG_QTHR, .type = XTTYPE_UINT64,
+ .min = 1, .max = ULOG_MAX_QLEN},
+ XTOPT_TABLEEND,
};
static void ULOG_init(struct xt_entry_target *t)
@@ -58,89 +52,27 @@ static void ULOG_init(struct xt_entry_target *t)
}
-#define IPT_LOG_OPT_NLGROUP 0x01
-#define IPT_LOG_OPT_PREFIX 0x02
-#define IPT_LOG_OPT_CPRANGE 0x04
-#define IPT_LOG_OPT_QTHRESHOLD 0x08
-
-static int ULOG_parse(int c, char **argv, int invert, unsigned int *flags,
- const void *entry, struct xt_entry_target **target)
+static void ULOG_parse(struct xt_option_call *cb)
{
- struct ipt_ulog_info *loginfo =
- (struct ipt_ulog_info *) (*target)->data;
- int group_d;
+ struct ipt_ulog_info *loginfo = cb->data;
- switch (c) {
- case '!':
- if (*flags & IPT_LOG_OPT_NLGROUP)
- xtables_error(PARAMETER_PROBLEM,
- "Can't specify --ulog-nlgroup twice");
-
- if (xtables_check_inverse(optarg, &invert, NULL, 0, argv))
- xtables_error(PARAMETER_PROBLEM,
- "Unexpected `!' after --ulog-nlgroup");
- group_d = atoi(optarg);
- if (group_d > 32 || group_d < 1)
- xtables_error(PARAMETER_PROBLEM,
- "--ulog-nlgroup has to be between 1 and 32");
-
- loginfo->nl_group = (1 << (group_d - 1));
-
- *flags |= IPT_LOG_OPT_NLGROUP;
+ xtables_option_parse(cb);
+ switch (cb->entry->id) {
+ case O_ULOG_NLGROUP:
+ loginfo->nl_group = 1 << (cb->val.u8 - 1);
break;
-
- case '#':
- if (*flags & IPT_LOG_OPT_PREFIX)
- xtables_error(PARAMETER_PROBLEM,
- "Can't specify --ulog-prefix twice");
-
- if (xtables_check_inverse(optarg, &invert, NULL, 0, argv))
- xtables_error(PARAMETER_PROBLEM,
- "Unexpected `!' after --ulog-prefix");
-
- if (strlen(optarg) > sizeof(loginfo->prefix) - 1)
- xtables_error(PARAMETER_PROBLEM,
- "Maximum prefix length %u for --ulog-prefix",
- (unsigned int)sizeof(loginfo->prefix) - 1);
-
- if (strlen(optarg) == 0)
- xtables_error(PARAMETER_PROBLEM,
- "No prefix specified for --ulog-prefix");
-
- if (strlen(optarg) != strlen(strtok(optarg, "\n")))
+ case O_ULOG_PREFIX:
+ if (strchr(cb->arg, '\n') != NULL)
xtables_error(PARAMETER_PROBLEM,
"Newlines not allowed in --ulog-prefix");
-
- strcpy(loginfo->prefix, optarg);
- *flags |= IPT_LOG_OPT_PREFIX;
break;
- case 'A':
- if (*flags & IPT_LOG_OPT_CPRANGE)
- xtables_error(PARAMETER_PROBLEM,
- "Can't specify --ulog-cprange twice");
- if (atoi(optarg) < 0)
- xtables_error(PARAMETER_PROBLEM,
- "Negative copy range?");
- loginfo->copy_range = atoi(optarg);
- *flags |= IPT_LOG_OPT_CPRANGE;
+ case O_ULOG_CPRANGE:
+ loginfo->copy_range = cb->val.u64;
break;
- case 'B':
- if (*flags & IPT_LOG_OPT_QTHRESHOLD)
- xtables_error(PARAMETER_PROBLEM,
- "Can't specify --ulog-qthreshold twice");
- if (atoi(optarg) < 1)
- xtables_error(PARAMETER_PROBLEM,
- "Negative or zero queue threshold ?");
- if (atoi(optarg) > ULOG_MAX_QLEN)
- xtables_error(PARAMETER_PROBLEM,
- "Maximum queue length exceeded");
- loginfo->qthreshold = atoi(optarg);
- *flags |= IPT_LOG_OPT_QTHRESHOLD;
+ case O_ULOG_QTHR:
+ loginfo->qthreshold = cb->val.u64;
break;
- default:
- return 0;
}
- return 1;
}
static void ULOG_save(const void *ip, const struct xt_entry_target *target)
@@ -149,19 +81,17 @@ static void ULOG_save(const void *ip, const struct xt_entry_target *target)
= (const struct ipt_ulog_info *) target->data;
if (strcmp(loginfo->prefix, "") != 0) {
- fputs("--ulog-prefix ", stdout);
+ fputs(" --ulog-prefix", stdout);
xtables_save_string(loginfo->prefix);
}
- if (loginfo->nl_group != ULOG_DEFAULT_NLGROUP) {
- printf("--ulog-nlgroup ");
- print_groups(loginfo->nl_group);
- }
+ if (loginfo->nl_group != ULOG_DEFAULT_NLGROUP)
+ printf(" --ulog-nlgroup %d", ffs(loginfo->nl_group));
if (loginfo->copy_range)
- printf("--ulog-cprange %u ", (unsigned int)loginfo->copy_range);
+ printf(" --ulog-cprange %u", (unsigned int)loginfo->copy_range);
if (loginfo->qthreshold != ULOG_DEFAULT_QTHRESHOLD)
- printf("--ulog-qthreshold %u ", (unsigned int)loginfo->qthreshold);
+ printf(" --ulog-qthreshold %u", (unsigned int)loginfo->qthreshold);
}
static void ULOG_print(const void *ip, const struct xt_entry_target *target,
@@ -170,12 +100,12 @@ static void ULOG_print(const void *ip, const struct xt_entry_target *target,
const struct ipt_ulog_info *loginfo
= (const struct ipt_ulog_info *) target->data;
- printf("ULOG ");
- printf("copy_range %u nlgroup ", (unsigned int)loginfo->copy_range);
- print_groups(loginfo->nl_group);
+ printf(" ULOG ");
+ printf("copy_range %u nlgroup %d", (unsigned int)loginfo->copy_range,
+ ffs(loginfo->nl_group));
if (strcmp(loginfo->prefix, "") != 0)
- printf("prefix `%s' ", loginfo->prefix);
- printf("queue_threshold %u ", (unsigned int)loginfo->qthreshold);
+ printf(" prefix \"%s\"", loginfo->prefix);
+ printf(" queue_threshold %u", (unsigned int)loginfo->qthreshold);
}
static struct xtables_target ulog_tg_reg = {
@@ -186,10 +116,10 @@ static struct xtables_target ulog_tg_reg = {
.userspacesize = XT_ALIGN(sizeof(struct ipt_ulog_info)),
.help = ULOG_help,
.init = ULOG_init,
- .parse = ULOG_parse,
.print = ULOG_print,
.save = ULOG_save,
- .extra_opts = ULOG_opts,
+ .x6_parse = ULOG_parse,
+ .x6_options = ULOG_opts,
};
void _init(void)
generated by cgit v1.2.3 (git 2.25.1) at 2024-11-22 12:59:28 +0000