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-rwxr-xr-xextensions/.owner-test62
-rw-r--r--extensions/libip6t_limit.c198
-rw-r--r--extensions/libip6t_mac.c145
-rw-r--r--extensions/libip6t_multiport.c263
-rw-r--r--extensions/libip6t_owner.c220
5 files changed, 828 insertions, 0 deletions
diff --git a/extensions/.owner-test6 b/extensions/.owner-test6
new file mode 100755
index 00000000..9d46e2b7
--- /dev/null
+++ b/extensions/.owner-test6
@@ -0,0 +1,2 @@
+#! /bin/sh
+[ -f $KERNEL_DIR/include/linux/netfilter_ipv6/ip6t_owner.h ] && echo owner limit mac multiport
diff --git a/extensions/libip6t_limit.c b/extensions/libip6t_limit.c
new file mode 100644
index 00000000..3b0318ba
--- /dev/null
+++ b/extensions/libip6t_limit.c
@@ -0,0 +1,198 @@
+/* Shared library add-on to iptables to add limit support.
+ *
+ * Jérôme de Vivie <devivie@info.enserb.u-bordeaux.fr>
+ * Hervé Eychenne <eychenne@info.enserb.u-bordeaux.fr>
+ */
+#include <stdio.h>
+#include <string.h>
+#include <stdlib.h>
+#include <getopt.h>
+#include <ip6tables.h>
+#include <stddef.h>
+#include <linux/netfilter_ipv6/ip6_tables.h>
+#include <linux/netfilter_ipv6/ip6t_limit.h>
+
+#define IP6T_LIMIT_AVG "3/hour"
+#define IP6T_LIMIT_BURST 5
+
+/* Function which prints out usage message. */
+static void
+help(void)
+{
+ printf(
+"limit v%s options:\n"
+"--limit avg max average match rate: default "IP6T_LIMIT_AVG"\n"
+" [Packets per second unless followed by \n"
+" /sec /minute /hour /day postfixes]\n"
+"--limit-burst number number to match in a burst, default %u\n"
+"\n", NETFILTER_VERSION, IP6T_LIMIT_BURST);
+}
+
+static struct option opts[] = {
+ { "limit", 1, 0, '%' },
+ { "limit-burst", 1, 0, '$' },
+ { 0 }
+};
+
+static
+int parse_rate(const char *rate, u_int32_t *val)
+{
+ const char *delim;
+ u_int32_t r;
+ u_int32_t mult = 1; /* Seconds by default. */
+
+ delim = strchr(rate, '/');
+ if (delim) {
+ if (strlen(delim+1) == 0)
+ return 0;
+
+ if (strncasecmp(delim+1, "second", strlen(delim+1)) == 0)
+ mult = 1;
+ else if (strncasecmp(delim+1, "minute", strlen(delim+1)) == 0)
+ mult = 60;
+ else if (strncasecmp(delim+1, "hour", strlen(delim+1)) == 0)
+ mult = 60*60;
+ else if (strncasecmp(delim+1, "day", strlen(delim+1)) == 0)
+ mult = 24*60*60;
+ else
+ return 0;
+ }
+ r = atoi(rate);
+ if (!r)
+ return 0;
+
+ /* This would get mapped to infinite (1/day is minimum they
+ can specify, so we're ok at that end). */
+ if (r / mult > IP6T_LIMIT_SCALE)
+ exit_error(PARAMETER_PROBLEM, "Rate too fast `%s'\n", rate);
+
+ *val = IP6T_LIMIT_SCALE * mult / r;
+ return 1;
+}
+
+/* Initialize the match. */
+static void
+init(struct ip6t_entry_match *m, unsigned int *nfcache)
+{
+ struct ip6t_rateinfo *r = (struct ip6t_rateinfo *)m->data;
+
+ parse_rate(IP6T_LIMIT_AVG, &r->avg);
+ r->burst = IP6T_LIMIT_BURST;
+
+ /* Can't cache this */
+ *nfcache |= NFC_UNKNOWN;
+}
+
+/* FIXME: handle overflow:
+ if (r->avg*r->burst/r->burst != r->avg)
+ exit_error(PARAMETER_PROBLEM,
+ "Sorry: burst too large for that avg rate.\n");
+*/
+
+/* Function which parses command options; returns true if it
+ ate an option */
+static int
+parse(int c, char **argv, int invert, unsigned int *flags,
+ const struct ip6t_entry *entry,
+ unsigned int *nfcache,
+ struct ip6t_entry_match **match)
+{
+ struct ip6t_rateinfo *r = (struct ip6t_rateinfo *)(*match)->data;
+ int num;
+
+ switch(c) {
+ case '%':
+ if (check_inverse(optarg, &invert))
+ exit_error(PARAMETER_PROBLEM,
+ "Unexpected `!' after --limit");
+ if (!parse_rate(optarg, &r->avg))
+ exit_error(PARAMETER_PROBLEM,
+ "bad rate `%s'", optarg);
+ break;
+
+ case '$':
+ if (check_inverse(optarg, &invert))
+ exit_error(PARAMETER_PROBLEM,
+ "Unexpected `!' after --limit-burst");
+
+ num = string_to_number(optarg, 0, 10000);
+ if (num <= 0)
+ exit_error(PARAMETER_PROBLEM,
+ "bad --limit-burst `%s'", optarg);
+ r->burst = num;
+ break;
+
+ default:
+ return 0;
+ }
+
+ return 1;
+}
+
+/* Final check; nothing. */
+static void final_check(unsigned int flags)
+{
+}
+
+static struct rates
+{
+ const char *name;
+ u_int32_t mult;
+} rates[] = { { "day", IP6T_LIMIT_SCALE*24*60*60 },
+ { "hour", IP6T_LIMIT_SCALE*60*60 },
+ { "min", IP6T_LIMIT_SCALE*60 },
+ { "sec", IP6T_LIMIT_SCALE } };
+
+static void print_rate(u_int32_t period)
+{
+ unsigned int i;
+
+ for (i = 1; i < sizeof(rates)/sizeof(struct rates); i++) {
+ if (period > rates[i].mult
+ || rates[i].mult % period != 0)
+ break;
+ }
+
+ printf("%u/%s ", rates[i-1].mult / period, rates[i-1].name);
+}
+
+/* Prints out the matchinfo. */
+static void
+print(const struct ip6t_ip6 *ip,
+ const struct ip6t_entry_match *match,
+ int numeric)
+{
+ struct ip6t_rateinfo *r = (struct ip6t_rateinfo *)match->data;
+ printf("limit: avg "); print_rate(r->avg);
+ printf("burst %u ", r->burst);
+}
+
+/* FIXME: Make minimalist: only print rate if not default --RR */
+static void save(const struct ip6t_ip6 *ip, const struct ip6t_entry_match *match)
+{
+ struct ip6t_rateinfo *r = (struct ip6t_rateinfo *)match->data;
+
+ printf("--limit "); print_rate(r->avg);
+ if (r->burst != IP6T_LIMIT_BURST)
+ printf("--limit-burst %u ", r->burst);
+}
+
+struct ip6tables_match limit
+= { NULL,
+ "limit",
+ NETFILTER_VERSION,
+ IP6T_ALIGN(sizeof(struct ip6t_rateinfo)),
+ offsetof(struct ip6t_rateinfo, prev),
+ &help,
+ &init,
+ &parse,
+ &final_check,
+ &print,
+ &save,
+ opts
+};
+
+void _init(void)
+{
+ register_match6(&limit);
+}
diff --git a/extensions/libip6t_mac.c b/extensions/libip6t_mac.c
new file mode 100644
index 00000000..283c486c
--- /dev/null
+++ b/extensions/libip6t_mac.c
@@ -0,0 +1,145 @@
+/* Shared library add-on to iptables to add MAC address support. */
+#include <stdio.h>
+#include <netdb.h>
+#include <string.h>
+#include <stdlib.h>
+#include <getopt.h>
+#if defined(__GLIBC__) && __GLIBC__ == 2
+#include <net/ethernet.h>
+#else
+#include <linux/if_ether.h>
+#endif
+#include <ip6tables.h>
+#include <linux/netfilter_ipv6/ip6t_mac.h>
+
+/* Function which prints out usage message. */
+static void
+help(void)
+{
+ printf(
+"MAC v%s options:\n"
+" --mac-source [!] XX:XX:XX:XX:XX:XX\n"
+" Match source MAC address\n"
+"\n", NETFILTER_VERSION);
+}
+
+static struct option opts[] = {
+ { "mac-source", 1, 0, '1' },
+ {0}
+};
+
+/* Initialize the match. */
+static void
+init(struct ip6t_entry_match *m, unsigned int *nfcache)
+{
+ /* Can't cache this */
+ *nfcache |= NFC_UNKNOWN;
+}
+
+static void
+parse_mac(const char *mac, struct ip6t_mac_info *info)
+{
+ unsigned int i = 0;
+
+ if (strlen(mac) != ETH_ALEN*3-1)
+ exit_error(PARAMETER_PROBLEM, "Bad mac address `%s'", mac);
+
+ for (i = 0; i < ETH_ALEN; i++) {
+ long number;
+ char *end;
+
+ number = strtol(mac + i*3, &end, 16);
+
+ if (end == mac + i*3 + 2
+ && number >= 0
+ && number <= 255)
+ info->srcaddr[i] = number;
+ else
+ exit_error(PARAMETER_PROBLEM,
+ "Bad mac address `%s'", mac);
+ }
+}
+
+/* Function which parses command options; returns true if it
+ ate an option */
+static int
+parse(int c, char **argv, int invert, unsigned int *flags,
+ const struct ip6t_entry *entry,
+ unsigned int *nfcache,
+ struct ip6t_entry_match **match)
+{
+ struct ip6t_mac_info *macinfo = (struct ip6t_mac_info *)(*match)->data;
+
+ switch (c) {
+ case '1':
+ if (check_inverse(optarg, &invert))
+ optind++;
+ parse_mac(argv[optind-1], macinfo);
+ if (invert)
+ macinfo->invert = 1;
+ *flags = 1;
+ break;
+
+ default:
+ return 0;
+ }
+
+ return 1;
+}
+
+static void print_mac(unsigned char macaddress[ETH_ALEN], int invert)
+{
+ unsigned int i;
+
+ printf("%s%02X", invert ? "!" : "", macaddress[0]);
+ for (i = 1; i < ETH_ALEN; i++)
+ printf(":%02X", macaddress[i]);
+ printf(" ");
+}
+
+/* Final check; must have specified --mac. */
+static void final_check(unsigned int flags)
+{
+ if (!flags)
+ exit_error(PARAMETER_PROBLEM,
+ "You must specify `--mac-source'");
+}
+
+/* Prints out the matchinfo. */
+static void
+print(const struct ip6t_ip6 *ip,
+ const struct ip6t_entry_match *match,
+ int numeric)
+{
+ printf("MAC ");
+ print_mac(((struct ip6t_mac_info *)match->data)->srcaddr,
+ ((struct ip6t_mac_info *)match->data)->invert);
+}
+
+/* Saves the union ip6t_matchinfo in parsable form to stdout. */
+static void save(const struct ip6t_ip6 *ip, const struct ip6t_entry_match *match)
+{
+ printf("--mac ");
+ print_mac(((struct ip6t_mac_info *)match->data)->srcaddr,
+ ((struct ip6t_mac_info *)match->data)->invert);
+}
+
+struct ip6tables_match mac
+= { NULL,
+ "mac",
+ NETFILTER_VERSION,
+ IP6T_ALIGN(sizeof(struct ip6t_mac_info)),
+ IP6T_ALIGN(sizeof(struct ip6t_mac_info)),
+ &help,
+ &init,
+ &parse,
+ &final_check,
+ &print,
+ &save,
+ opts
+};
+
+void _init(void)
+{
+ register_match6(&mac);
+}
diff --git a/extensions/libip6t_multiport.c b/extensions/libip6t_multiport.c
new file mode 100644
index 00000000..0fcefde1
--- /dev/null
+++ b/extensions/libip6t_multiport.c
@@ -0,0 +1,263 @@
+/* Shared library add-on to iptables to add multiple TCP port support. */
+#include <stdio.h>
+#include <netdb.h>
+#include <string.h>
+#include <stdlib.h>
+#include <getopt.h>
+#include <ip6tables.h>
+#include <linux/netfilter_ipv6/ip6t_multiport.h>
+
+/* Function which prints out usage message. */
+static void
+help(void)
+{
+ printf(
+"multiport v%s options:\n"
+" --source-ports port[,port,port...]\n"
+" --sports ...\n"
+" match source port(s)\n"
+" --destination-ports port[,port,port...]\n"
+" --dports ...\n"
+" match destination port(s)\n"
+" --ports port[,port,port]\n"
+" match both source and destination port(s)\n",
+NETFILTER_VERSION);
+}
+
+static struct option opts[] = {
+ { "source-ports", 1, 0, '1' },
+ { "sports", 1, 0, '1' }, /* synonym */
+ { "destination-ports", 1, 0, '2' },
+ { "dports", 1, 0, '2' }, /* synonym */
+ { "ports", 1, 0, '3' },
+ {0}
+};
+
+static int
+service_to_port(const char *name, const char *proto)
+{
+ struct servent *service;
+
+ if ((service = getservbyname(name, proto)) != NULL)
+ return ntohs((unsigned short) service->s_port);
+
+ return -1;
+}
+
+static u_int16_t
+parse_port(const char *port, const char *proto)
+{
+ int portnum;
+ if ((portnum = string_to_number(port, 0, 65535)) != -1 ||
+ (portnum = service_to_port(port, proto)) != -1)
+ return (u_int16_t)portnum;
+
+ exit_error(PARAMETER_PROBLEM,
+ "invalid port/service `%s' specified", port);
+}
+
+static unsigned int
+parse_multi_ports(const char *portstring, u_int16_t *ports, const char *proto)
+{
+ char *buffer, *cp, *next;
+ unsigned int i;
+
+ buffer = strdup(portstring);
+ if (!buffer) exit_error(OTHER_PROBLEM, "strdup failed");
+
+ for (cp=buffer, i=0; cp && i<IP6T_MULTI_PORTS; cp=next,i++)
+ {
+ next=strchr(cp, ',');
+ if (next) *next++='\0';
+ ports[i] = parse_port(cp, proto);
+ }
+ if (cp) exit_error(PARAMETER_PROBLEM, "too many ports specified");
+ free(buffer);
+ return i;
+}
+
+/* Initialize the match. */
+static void
+init(struct ip6t_entry_match *m, unsigned int *nfcache)
+{
+}
+
+static const char *
+check_proto(const struct ip6t_entry *entry)
+{
+ if (entry->ipv6.proto == IPPROTO_TCP)
+ return "tcp";
+ else if (entry->ipv6.proto == IPPROTO_UDP)
+ return "udp";
+ else if (!entry->ipv6.proto)
+ exit_error(PARAMETER_PROBLEM,
+ "multiport needs `-p tcp' or `-p udp'");
+ else
+ exit_error(PARAMETER_PROBLEM,
+ "multiport only works with TCP or UDP");
+}
+
+/* Function which parses command options; returns true if it
+ ate an option */
+static int
+parse(int c, char **argv, int invert, unsigned int *flags,
+ const struct ip6t_entry *entry,
+ unsigned int *nfcache,
+ struct ip6t_entry_match **match)
+{
+ const char *proto;
+ struct ip6t_multiport *multiinfo
+ = (struct ip6t_multiport *)(*match)->data;
+
+ switch (c) {
+ case '1':
+ proto = check_proto(entry);
+ multiinfo->count = parse_multi_ports(argv[optind-1],
+ multiinfo->ports, proto);
+ multiinfo->flags = IP6T_MULTIPORT_SOURCE;
+ *nfcache |= NFC_IP6_SRC_PT;
+ break;
+
+ case '2':
+ proto = check_proto(entry);
+ multiinfo->count = parse_multi_ports(argv[optind-1],
+ multiinfo->ports, proto);
+ multiinfo->flags = IP6T_MULTIPORT_DESTINATION;
+ *nfcache |= NFC_IP6_DST_PT;
+ break;
+
+ case '3':
+ proto = check_proto(entry);
+ multiinfo->count = parse_multi_ports(argv[optind-1],
+ multiinfo->ports, proto);
+ multiinfo->flags = IP6T_MULTIPORT_EITHER;
+ *nfcache |= NFC_IP6_SRC_PT | NFC_IP6_DST_PT;
+ break;
+
+ default:
+ return 0;
+ }
+
+ if (*flags)
+ exit_error(PARAMETER_PROBLEM,
+ "multiport can only have one option");
+ *flags = 1;
+ return 1;
+}
+
+/* Final check; must specify something. */
+static void
+final_check(unsigned int flags)
+{
+ if (!flags)
+ exit_error(PARAMETER_PROBLEM, "multiport expection an option");
+}
+
+static char *
+port_to_service(int port, u_int8_t proto)
+{
+ struct servent *service;
+
+ if ((service = getservbyport(htons(port),
+ proto == IPPROTO_TCP ? "tcp" : "udp")))
+ return service->s_name;
+
+ return NULL;
+}
+
+static void
+print_port(u_int16_t port, u_int8_t protocol, int numeric)
+{
+ char *service;
+
+ if (numeric || (service = port_to_service(port, protocol)) == NULL)
+ printf("%u", port);
+ else
+ printf("%s", service);
+}
+
+/* Prints out the matchinfo. */
+static void
+print(const struct ip6t_ip6 *ip,
+ const struct ip6t_entry_match *match,
+ int numeric)
+{
+ const struct ip6t_multiport *multiinfo
+ = (const struct ip6t_multiport *)match->data;
+ unsigned int i;
+
+ printf("multiport ");
+
+ switch (multiinfo->flags) {
+ case IP6T_MULTIPORT_SOURCE:
+ printf("sports ");
+ break;
+
+ case IP6T_MULTIPORT_DESTINATION:
+ printf("dports ");
+ break;
+
+ case IP6T_MULTIPORT_EITHER:
+ printf("ports ");
+ break;
+
+ default:
+ printf("ERROR ");
+ break;
+ }
+
+ for (i=0; i < multiinfo->count; i++) {
+ printf("%s", i ? "," : "");
+ print_port(multiinfo->ports[i], ip->proto, numeric);
+ }
+ printf(" ");
+}
+
+/* Saves the union ip6t_matchinfo in parsable form to stdout. */
+static void save(const struct ip6t_ip6 *ip, const struct ip6t_entry_match *match)
+{
+ const struct ip6t_multiport *multiinfo
+ = (const struct ip6t_multiport *)match->data;
+ unsigned int i;
+
+ switch (multiinfo->flags) {
+ case IP6T_MULTIPORT_SOURCE:
+ printf("--sports ");
+ break;
+
+ case IP6T_MULTIPORT_DESTINATION:
+ printf("--dports ");
+ break;
+
+ case IP6T_MULTIPORT_EITHER:
+ printf("--ports ");
+ break;
+ }
+
+ for (i=0; i < multiinfo->count; i++) {
+ printf("%s", i ? "," : "");
+ print_port(multiinfo->ports[i], ip->proto, 0);
+ }
+ printf(" ");
+}
+
+struct ip6tables_match multiport
+= { NULL,
+ "multiport",
+ NETFILTER_VERSION,
+ IP6T_ALIGN(sizeof(struct ip6t_multiport)),
+ IP6T_ALIGN(sizeof(struct ip6t_multiport)),
+ &help,
+ &init,
+ &parse,
+ &final_check,
+ &print,
+ &save,
+ opts
+};
+
+void
+_init(void)
+{
+ register_match6(&multiport);
+}
diff --git a/extensions/libip6t_owner.c b/extensions/libip6t_owner.c
new file mode 100644
index 00000000..7648d657
--- /dev/null
+++ b/extensions/libip6t_owner.c
@@ -0,0 +1,220 @@
+/* Shared library add-on to iptables to add OWNER matching support. */
+#include <stdio.h>
+#include <netdb.h>
+#include <string.h>
+#include <stdlib.h>
+#include <getopt.h>
+#include <pwd.h>
+#include <grp.h>
+
+#include <ip6tables.h>
+#include <linux/netfilter_ipv6/ip6t_owner.h>
+
+/* Function which prints out usage message. */
+static void
+help(void)
+{
+ printf(
+"OWNER match v%s options:\n"
+"[!] --uid-owner userid Match local uid\n"
+"[!] --gid-owner groupid Match local gid\n"
+"[!] --pid-owner processid Match local pid\n"
+"[!] --sid-owner sessionid Match local sid\n"
+"\n",
+NETFILTER_VERSION);
+}
+
+static struct option opts[] = {
+ { "uid-owner", 1, 0, '1' },
+ { "gid-owner", 1, 0, '2' },
+ { "pid-owner", 1, 0, '3' },
+ { "sid-owner", 1, 0, '4' },
+ {0}
+};
+
+/* Initialize the match. */
+static void
+init(struct ip6t_entry_match *m, unsigned int *nfcache)
+{
+ /* Can't cache this. */
+ *nfcache |= NFC_UNKNOWN;
+}
+
+/* Function which parses command options; returns true if it
+ ate an option */
+static int
+parse(int c, char **argv, int invert, unsigned int *flags,
+ const struct ip6t_entry *entry,
+ unsigned int *nfcache,
+ struct ip6t_entry_match **match)
+{
+ struct ip6t_owner_info *ownerinfo = (struct ip6t_owner_info *)(*match)->data;
+
+ switch (c) {
+ char *end;
+ struct passwd *pwd;
+ struct group *grp;
+ case '1':
+ if (check_inverse(optarg, &invert))
+ optind++;
+
+ if ((pwd = getpwnam(optarg)))
+ ownerinfo->uid = pwd->pw_uid;
+ else {
+ ownerinfo->uid = strtoul(optarg, &end, 0);
+ if (*end != '\0' || end == optarg)
+ exit_error(PARAMETER_PROBLEM, "Bad OWNER UID value `%s'", optarg);
+ }
+ if (invert)
+ ownerinfo->invert |= IP6T_OWNER_UID;
+ ownerinfo->match |= IP6T_OWNER_UID;
+ *flags = 1;
+ break;
+
+ case '2':
+ if (check_inverse(optarg, &invert))
+ optind++;
+ if ((grp = getgrnam(optarg)))
+ ownerinfo->gid = grp->gr_gid;
+ else {
+ ownerinfo->gid = strtoul(optarg, &end, 0);
+ if (*end != '\0' || end == optarg)
+ exit_error(PARAMETER_PROBLEM, "Bad OWNER GID value `%s'", optarg);
+ }
+ if (invert)
+ ownerinfo->invert |= IP6T_OWNER_GID;
+ ownerinfo->match |= IP6T_OWNER_GID;
+ *flags = 1;
+ break;
+
+ case '3':
+ if (check_inverse(optarg, &invert))
+ optind++;
+ ownerinfo->pid = strtoul(optarg, &end, 0);
+ if (*end != '\0' || end == optarg)
+ exit_error(PARAMETER_PROBLEM, "Bad OWNER PID value `%s'", optarg);
+ if (invert)
+ ownerinfo->invert |= IP6T_OWNER_PID;
+ ownerinfo->match |= IP6T_OWNER_PID;
+ *flags = 1;
+ break;
+
+ case '4':
+ if (check_inverse(optarg, &invert))
+ optind++;
+ ownerinfo->sid = strtoul(optarg, &end, 0);
+ if (*end != '\0' || end == optarg)
+ exit_error(PARAMETER_PROBLEM, "Bad OWNER SID value `%s'", optarg);
+ if (invert)
+ ownerinfo->invert |= IP6T_OWNER_SID;
+ ownerinfo->match |= IP6T_OWNER_SID;
+ *flags = 1;
+ break;
+
+ default:
+ return 0;
+ }
+ return 1;
+}
+
+static void
+print_item(struct ip6t_owner_info *info, u_int8_t flag, int numeric, char *label)
+{
+ if(info->match & flag) {
+
+ printf(label);
+
+ if (info->invert & flag)
+ fputc('!', stdout);
+
+ switch(info->match & flag) {
+ case IP6T_OWNER_UID:
+ if(!numeric) {
+ struct passwd *pwd = getpwuid(info->uid);
+
+ if(pwd && pwd->pw_name) {
+ printf("%s ", pwd->pw_name);
+ break;
+ }
+ /* FALLTHROUGH */
+ }
+ printf("%u ", info->uid);
+ break;
+ case IP6T_OWNER_GID:
+ if(!numeric) {
+ struct group *grp = getgrgid(info->gid);
+
+ if(grp && grp->gr_name) {
+ printf("%s ", grp->gr_name);
+ break;
+ }
+ /* FALLTHROUGH */
+ }
+ printf("%u ", info->gid);
+ break;
+ case IP6T_OWNER_PID:
+ printf("%u ", info->pid);
+ break;
+ case IP6T_OWNER_SID:
+ printf("%u ", info->sid);
+ break;
+ default:
+ break;
+ }
+ }
+}
+
+/* Final check; must have specified --own. */
+static void
+final_check(unsigned int flags)
+{
+ if (!flags)
+ exit_error(PARAMETER_PROBLEM,
+ "OWNER match: You must specify one or more options");
+}
+
+/* Prints out the matchinfo. */
+static void
+print(const struct ip6t_ip6 *ip,
+ const struct ip6t_entry_match *match,
+ int numeric)
+{
+ struct ip6t_owner_info *info = (struct ip6t_owner_info *)match->data;
+
+ print_item(info, IP6T_OWNER_UID, numeric, "OWNER UID match ");
+ print_item(info, IP6T_OWNER_GID, numeric, "OWNER GID match ");
+ print_item(info, IP6T_OWNER_PID, numeric, "OWNER PID match ");
+ print_item(info, IP6T_OWNER_SID, numeric, "OWNER SID match ");
+}
+
+/* Saves the union ip6t_matchinfo in parsable form to stdout. */
+static void
+save(const struct ip6t_ip6 *ip, const struct ip6t_entry_match *match)
+{
+ struct ip6t_owner_info *info = (struct ip6t_owner_info *)match->data;
+
+ print_item(info, IP6T_OWNER_UID, 0, "--uid-owner ");
+ print_item(info, IP6T_OWNER_GID, 0, "--gid-owner ");
+ print_item(info, IP6T_OWNER_PID, 0, "--pid-owner ");
+ print_item(info, IP6T_OWNER_SID, 0, "--sid-owner ");
+}
+
+struct ip6tables_match owner
+= { NULL,
+ "owner",
+ NETFILTER_VERSION,
+ IP6T_ALIGN(sizeof(struct ip6t_owner_info)),
+ IP6T_ALIGN(sizeof(struct ip6t_owner_info)),
+ &help,
+ &init,
+ &parse,
+ &final_check,
+ &print,
+ &save,
+ opts
+};
+
+void _init(void)
+{
+ register_match6(&owner);
+}