diff options
| -rw-r--r-- | Makefile.am | 2 | ||||
| -rw-r--r-- | extensions/ebt_AUDIT.c | 110 | ||||
| -rw-r--r-- | include/linux/netfilter/xt_AUDIT.h | 30 |
3 files changed, 141 insertions, 1 deletions
diff --git a/Makefile.am b/Makefile.am index 53fcbad..904de12 100644 --- a/Makefile.am +++ b/Makefile.am @@ -40,7 +40,7 @@ libebtc_la_SOURCES = \ extensions/ebt_mark_m.c extensions/ebt_nat.c extensions/ebt_nflog.c \ extensions/ebt_pkttype.c extensions/ebt_redirect.c \ extensions/ebt_standard.c extensions/ebt_stp.c extensions/ebt_string.c \ - extensions/ebt_ulog.c extensions/ebt_vlan.c \ + extensions/ebt_ulog.c extensions/ebt_vlan.c extensions/ebt_AUDIT.c \ extensions/ebtable_broute.c extensions/ebtable_filter.c \ extensions/ebtable_nat.c # Make sure ebtables.c can be built twice diff --git a/extensions/ebt_AUDIT.c b/extensions/ebt_AUDIT.c new file mode 100644 index 0000000..c9befcc --- /dev/null +++ b/extensions/ebt_AUDIT.c @@ -0,0 +1,110 @@ + +#include <stdio.h> +#include <stdlib.h> +#include <string.h> +#include <getopt.h> +#include "../include/ebtables_u.h" +#include <linux/netfilter/xt_AUDIT.h> + +#define AUDIT_TYPE '1' +static struct option opts[] = +{ + { "audit-type" , required_argument, 0, AUDIT_TYPE }, + { 0 } +}; + +static void print_help() +{ + printf( + "AUDIT target options:\n" + " --audit-type TYPE : Set action type to record.\n"); +} + +static void init(struct ebt_entry_target *target) +{ + struct xt_AUDIT_info *info = (struct xt_AUDIT_info *) target->data; + + info->type = 0; +} + +static int parse(int c, char **argv, int argc, + const struct ebt_u_entry *entry, unsigned int *flags, + struct ebt_entry_target **target) +{ + struct xt_AUDIT_info *info = (struct xt_AUDIT_info *) (*target)->data; + + switch (c) { + case AUDIT_TYPE: + ebt_check_option2(flags, AUDIT_TYPE); + + if (!strcasecmp(optarg, "accept")) + info->type = XT_AUDIT_TYPE_ACCEPT; + else if (!strcasecmp(optarg, "drop")) + info->type = XT_AUDIT_TYPE_DROP; + else if (!strcasecmp(optarg, "reject")) + info->type = XT_AUDIT_TYPE_REJECT; + else + ebt_print_error2("Bad action type value `%s'", optarg); + + break; + default: + return 0; + } + return 1; +} + +static void final_check(const struct ebt_u_entry *entry, + const struct ebt_entry_target *target, const char *name, + unsigned int hookmask, unsigned int time) +{ +} + +static void print(const struct ebt_u_entry *entry, + const struct ebt_entry_target *target) +{ + const struct xt_AUDIT_info *info = + (const struct xt_AUDIT_info *) target->data; + + printf("--audit-type "); + + switch(info->type) { + case XT_AUDIT_TYPE_ACCEPT: + printf("accept"); + break; + case XT_AUDIT_TYPE_DROP: + printf("drop"); + break; + case XT_AUDIT_TYPE_REJECT: + printf("reject"); + break; + } +} + +static int compare(const struct ebt_entry_target *t1, + const struct ebt_entry_target *t2) +{ + const struct xt_AUDIT_info *info1 = + (const struct xt_AUDIT_info *) t1->data; + const struct xt_AUDIT_info *info2 = + (const struct xt_AUDIT_info *) t2->data; + + return info1->type == info2->type; +} + +static struct ebt_u_target AUDIT_target = +{ + .name = "AUDIT", + .size = sizeof(struct xt_AUDIT_info), + .help = print_help, + .init = init, + .parse = parse, + .final_check = final_check, + .print = print, + .compare = compare, + .extra_ops = opts, +}; + +static void _INIT(void) +{ + ebt_register_target(&AUDIT_target); +} diff --git a/include/linux/netfilter/xt_AUDIT.h b/include/linux/netfilter/xt_AUDIT.h new file mode 100644 index 0000000..44111b2 --- /dev/null +++ b/include/linux/netfilter/xt_AUDIT.h @@ -0,0 +1,30 @@ +/* + * Header file for iptables xt_AUDIT target + * + * (C) 2010-2011 Thomas Graf <tgraf@redhat.com> + * (C) 2010-2011 Red Hat, Inc. + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 as + * published by the Free Software Foundation. + */ + +#ifndef _XT_AUDIT_TARGET_H +#define _XT_AUDIT_TARGET_H + +#include <linux/types.h> + +enum { + XT_AUDIT_TYPE_ACCEPT = 0, + XT_AUDIT_TYPE_DROP, + XT_AUDIT_TYPE_REJECT, + __XT_AUDIT_TYPE_MAX, +}; + +#define XT_AUDIT_TYPE_MAX (__XT_AUDIT_TYPE_MAX - 1) + +struct xt_AUDIT_info { + __u8 type; /* XT_AUDIT_TYPE_* */ +}; + +#endif /* _XT_AUDIT_TARGET_H */ |