--- /dev/null
+/* Copyright 2000, 2001, 2002 Joakim Axelsson (gozem@linux.nu)
+ * Patrick Schaaf (bof@bof.de)
+ * Martin Josefsson (gandalf@wlug.westbo.se)
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+ */
+
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <sys/socket.h>
+#include <netinet/in.h>
+#include <arpa/inet.h>
+#include <asm/bitops.h>
+#include <linux/if_ether.h>
+
+#include <linux/netfilter_ipv4/ip_set_macipmap.h>
+#include "ipset.h"
+
+#define BUFLEN 30;
+
+#define OPT_CREATE_FROM 0x01U
+#define OPT_CREATE_TO 0x02U
+#define OPT_CREATE_NETWORK 0x04U
+#define OPT_CREATE_MATCHUNSET 0x08U
+
+#define OPT_ADDDEL_IP 0x01U
+#define OPT_ADDDEL_MAC 0x02U
+
+/* Initialize the create. */
+void create_init(void *data)
+{
+ DP("create INIT");
+ /* Nothing */
+}
+
+/* Function which parses command options; returns true if it ate an option */
+int create_parse(int c, char *argv[], void *data, unsigned *flags)
+{
+ struct ip_set_req_macipmap_create *mydata =
+ (struct ip_set_req_macipmap_create *) data;
+
+ DP("create_parse");
+
+ switch (c) {
+ case '1':
+ parse_ip(optarg, &mydata->from);
+
+ *flags |= OPT_CREATE_FROM;
+
+ DP("--from %x (%s)", mydata->from,
+ ip_tostring_numeric(mydata->from));
+
+ break;
+
+ case '2':
+ parse_ip(optarg, &mydata->to);
+
+ *flags |= OPT_CREATE_TO;
+
+ DP("--to %x (%s)", mydata->to,
+ ip_tostring_numeric(mydata->to));
+
+ break;
+
+ case '3':
+ parse_ipandmask(optarg, &mydata->from, &mydata->to);
+
+ /* Make to the last of from + mask */
+ mydata->to = mydata->from | (~mydata->to);
+
+ *flags |= OPT_CREATE_NETWORK;
+
+ DP("--network from %x (%s)",
+ mydata->from, ip_tostring_numeric(mydata->from));
+ DP("--network to %x (%s)",
+ mydata->to, ip_tostring_numeric(mydata->to));
+
+ break;
+
+ case '4':
+ mydata->flags |= IPSET_MACIP_MATCHUNSET;
+
+ *flags |= OPT_CREATE_MATCHUNSET;
+
+ DP("--matchunset");
+
+ break;
+
+ default:
+ return 0;
+ }
+
+ return 1;
+}
+
+/* Final check; exit if not ok. */
+void create_final(void *data, unsigned int flags)
+{
+ struct ip_set_req_macipmap_create *mydata =
+ (struct ip_set_req_macipmap_create *) data;
+
+ if (flags == 0)
+ exit_error(PARAMETER_PROBLEM,
+ "Need to specify --from and --to, or --network\n");
+
+ if (flags & OPT_CREATE_NETWORK) {
+ /* --network */
+ if ((flags & OPT_CREATE_FROM) || (flags & OPT_CREATE_TO))
+ exit_error(PARAMETER_PROBLEM,
+ "Can't specify --from or --to with --network\n");
+ } else {
+ /* --from --to */
+ if ((flags & OPT_CREATE_FROM) == 0
+ || (flags & OPT_CREATE_TO) == 0)
+ exit_error(PARAMETER_PROBLEM,
+ "Need to specify both --from and --to\n");
+ }
+
+
+ DP("from : %x to: %x diff: %d match unset: %d", mydata->from,
+ mydata->to, mydata->to - mydata->from,
+ flags & OPT_CREATE_MATCHUNSET);
+
+ if (mydata->from > mydata->to)
+ exit_error(PARAMETER_PROBLEM,
+ "From can't be lower than to.\n");
+
+ if (mydata->to - mydata->from > MAX_RANGE)
+ exit_error(PARAMETER_PROBLEM,
+ "Range too large. Max is %d IPs in range\n",
+ MAX_RANGE+1);
+}
+
+/* Create commandline options */
+static struct option create_opts[] = {
+ {"from", 1, 0, '1'},
+ {"to", 1, 0, '2'},
+ {"network", 1, 0, '3'},
+ {"matchunset", 0, 0, '4'},
+ {0}
+};
+
+static void parse_mac(const char *mac, unsigned char *ethernet)
+{
+ 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)
+ ethernet[i] = number;
+ else
+ exit_error(PARAMETER_PROBLEM,
+ "Bad mac address `%s'", mac);
+ }
+}
+
+/* Add, del, test parser */
+ip_set_ip_t adt_parser(unsigned cmd, const char *optarg, void *data)
+{
+ struct ip_set_req_macipmap *mydata =
+ (struct ip_set_req_macipmap *) data;
+ char *saved = ipset_strdup(optarg);
+ char *ptr, *tmp = saved;
+
+ DP("macipmap: %p %p", optarg, data);
+
+ ptr = strsep(&tmp, "%");
+ parse_ip(ptr, &mydata->ip);
+
+ if (tmp)
+ parse_mac(tmp, mydata->ethernet);
+ else
+ memset(mydata->ethernet, 0, ETH_ALEN);
+
+ free(saved);
+ return 1;
+}
+
+/*
+ * Print and save
+ */
+
+void initheader(struct set *set, const void *data)
+{
+ struct ip_set_req_macipmap_create *header =
+ (struct ip_set_req_macipmap_create *) data;
+ struct ip_set_macipmap *map =
+ (struct ip_set_macipmap *) set->settype->header;
+
+ memset(map, 0, sizeof(struct ip_set_macipmap));
+ map->first_ip = header->from;
+ map->last_ip = header->to;
+ map->flags = header->flags;
+}
+
+void printheader(struct set *set, unsigned options)
+{
+ struct ip_set_macipmap *mysetdata =
+ (struct ip_set_macipmap *) set->settype->header;
+
+ printf(" from: %s", ip_tostring(mysetdata->first_ip, options));
+ printf(" to: %s", ip_tostring(mysetdata->last_ip, options));
+
+ if (mysetdata->flags & IPSET_MACIP_MATCHUNSET)
+ printf(" matchunset");
+ printf("\n");
+}
+
+static void print_mac(unsigned char macaddress[ETH_ALEN])
+{
+ unsigned int i;
+
+ printf("%02X", macaddress[0]);
+ for (i = 1; i < ETH_ALEN; i++)
+ printf(":%02X", macaddress[i]);
+}
+
+void printips_sorted(struct set *set, void *data, size_t len, unsigned options)
+{
+ struct ip_set_macipmap *mysetdata =
+ (struct ip_set_macipmap *) set->settype->header;
+ struct ip_set_macip *table =
+ (struct ip_set_macip *) data;
+ u_int32_t addr = mysetdata->first_ip;
+
+ while (addr <= mysetdata->last_ip) {
+ if (test_bit(IPSET_MACIP_ISSET,
+ (void *)&table[addr - mysetdata->first_ip].flags)) {
+ printf("%s%%", ip_tostring(addr, options));
+ print_mac(table[addr - mysetdata->first_ip].
+ ethernet);
+ printf("\n");
+ }
+ addr++;
+ }
+}
+
+void saveheader(struct set *set, unsigned options)
+{
+ struct ip_set_macipmap *mysetdata =
+ (struct ip_set_macipmap *) set->settype->header;
+
+ printf("-N %s %s --from %s",
+ set->name, set->settype->typename,
+ ip_tostring(mysetdata->first_ip, options));
+ printf(" --to %s", ip_tostring(mysetdata->last_ip, options));
+
+ if (mysetdata->flags & IPSET_MACIP_MATCHUNSET)
+ printf(" --matchunset");
+ printf("\n");
+}
+
+void saveips(struct set *set, void *data, size_t len, unsigned options)
+{
+ struct ip_set_macipmap *mysetdata =
+ (struct ip_set_macipmap *) set->settype->header;
+ struct ip_set_macip *table =
+ (struct ip_set_macip *) data;
+ u_int32_t addr = mysetdata->first_ip;
+
+ while (addr <= mysetdata->last_ip) {
+ if (test_bit(IPSET_MACIP_ISSET,
+ (void *)&table[addr - mysetdata->first_ip].flags)) {
+ printf("-A %s %s%%",
+ set->name, ip_tostring(addr, options));
+ print_mac(table[addr - mysetdata->first_ip].
+ ethernet);
+ printf("\n");
+ }
+ addr++;
+ }
+}
+
+void usage(void)
+{
+ printf
+ ("-N set macipmap --from IP --to IP [--matchunset]\n"
+ "-N set macipmap --network IP/mask [--matchunset]\n"
+ "-A set IP%%MAC\n"
+ "-D set IP[%%MAC]\n"
+ "-T set IP[%%MAC]\n");
+}
+
+static struct settype settype_macipmap = {
+ .typename = SETTYPE_NAME,
+ .protocol_version = IP_SET_PROTOCOL_VERSION,
+
+ /* Create */
+ .create_size = sizeof(struct ip_set_req_macipmap_create),
+ .create_init = &create_init,
+ .create_parse = &create_parse,
+ .create_final = &create_final,
+ .create_opts = create_opts,
+
+ /* Add/del/test */
+ .adt_size = sizeof(struct ip_set_req_macipmap),
+ .adt_parser = &adt_parser,
+
+ /* Printing */
+ .header_size = sizeof(struct ip_set_macipmap),
+ .initheader = &initheader,
+ .printheader = &printheader,
+ .printips = &printips_sorted, /* We only have sorted version */
+ .printips_sorted = &printips_sorted,
+ .saveheader = &saveheader,
+ .saveips = &saveips,
+
+ /* Bindings */
+ .bindip_tostring = &binding_ip_tostring,
+ .bindip_parse = &parse_ip,
+
+ .usage = &usage,
+};
+
+void _init(void)
+{
+ settype_register(&settype_macipmap);
+
+}
git://git.onelab.eu / iptables.git / blobdiff