--- /dev/null
+/* Copyright 2004 Jozsef Kadlecsik (kadlec@blackhole.kfki.hu)
+ *
+ * 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 <errno.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <unistd.h>
+#include <time.h>
+#include <sys/socket.h>
+#include <sys/types.h>
+#include <netinet/in.h>
+#include <arpa/inet.h>
+#include <asm/bitops.h>
+#include <asm/types.h>
+
+#include <linux/netfilter_ipv4/ip_set_ipporthash.h>
+#include <linux/netfilter_ipv4/ip_set_jhash.h>
+
+#include "ipset.h"
+
+#define OPT_CREATE_HASHSIZE 0x01U
+#define OPT_CREATE_PROBES 0x02U
+#define OPT_CREATE_RESIZE 0x04U
+#define OPT_CREATE_NETWORK 0x08U
+#define OPT_CREATE_FROM 0x10U
+#define OPT_CREATE_TO 0x20U
+
+/* Initialize the create. */
+void create_init(void *data)
+{
+ struct ip_set_req_ipporthash_create *mydata =
+ (struct ip_set_req_ipporthash_create *) data;
+
+ DP("create INIT");
+
+ /* Default create parameters */
+ mydata->hashsize = 1024;
+ mydata->probes = 8;
+ mydata->resize = 50;
+}
+
+/* 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_ipporthash_create *mydata =
+ (struct ip_set_req_ipporthash_create *) data;
+ ip_set_ip_t value;
+
+ DP("create_parse");
+
+ switch (c) {
+ case '1':
+
+ if (string_to_number(optarg, 1, UINT_MAX - 1, &mydata->hashsize))
+ exit_error(PARAMETER_PROBLEM, "Invalid hashsize `%s' specified", optarg);
+
+ *flags |= OPT_CREATE_HASHSIZE;
+
+ DP("--hashsize %u", mydata->hashsize);
+
+ break;
+
+ case '2':
+
+ if (string_to_number(optarg, 1, 65535, &value))
+ exit_error(PARAMETER_PROBLEM, "Invalid probes `%s' specified", optarg);
+
+ mydata->probes = value;
+ *flags |= OPT_CREATE_PROBES;
+
+ DP("--probes %u", mydata->probes);
+
+ break;
+
+ case '3':
+
+ if (string_to_number(optarg, 0, 65535, &value))
+ exit_error(PARAMETER_PROBLEM, "Invalid resize `%s' specified", optarg);
+
+ mydata->resize = value;
+ *flags |= OPT_CREATE_RESIZE;
+
+ DP("--resize %u", mydata->resize);
+
+ break;
+
+ case '4':
+ parse_ip(optarg, &mydata->from);
+
+ *flags |= OPT_CREATE_FROM;
+
+ DP("--from %x (%s)", mydata->from,
+ ip_tostring_numeric(mydata->from));
+
+ break;
+
+ case '5':
+ parse_ip(optarg, &mydata->to);
+
+ *flags |= OPT_CREATE_TO;
+
+ DP("--to %x (%s)", mydata->to,
+ ip_tostring_numeric(mydata->to));
+
+ break;
+
+ case '6':
+ parse_ipandmask(optarg, &mydata->from, &mydata->to);
+
+ /* Make to the last of from + mask */
+ if (mydata->to)
+ mydata->to = mydata->from | ~(mydata->to);
+ else {
+ mydata->from = 0x00000000;
+ mydata->to = 0xFFFFFFFF;
+ }
+ *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;
+
+ default:
+ return 0;
+ }
+
+ return 1;
+}
+
+/* Final check; exit if not ok. */
+void create_final(void *data, unsigned int flags)
+{
+ struct ip_set_req_ipporthash_create *mydata =
+ (struct ip_set_req_ipporthash_create *) data;
+
+#ifdef IPSET_DEBUG
+ DP("hashsize %u probes %u resize %u",
+ mydata->hashsize, mydata->probes, mydata->resize);
+#endif
+
+ 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 if (flags & (OPT_CREATE_FROM | OPT_CREATE_TO)) {
+ /* --from --to */
+ if (!(flags & OPT_CREATE_FROM) || !(flags & OPT_CREATE_TO))
+ exit_error(PARAMETER_PROBLEM,
+ "Need to specify both --from and --to\n");
+ } else {
+ exit_error(PARAMETER_PROBLEM,
+ "Need to specify --from and --to, or --network\n");
+
+ }
+
+ DP("from : %x to: %x diff: %x",
+ mydata->from, mydata->to,
+ mydata->to - mydata->from);
+
+ if (mydata->from > mydata->to)
+ exit_error(PARAMETER_PROBLEM,
+ "From can't be higher than to.\n");
+
+ if (mydata->to - mydata->from > MAX_RANGE)
+ exit_error(PARAMETER_PROBLEM,
+ "Range to large. Max is %d IPs in range\n",
+ MAX_RANGE+1);
+}
+
+/* Create commandline options */
+static struct option create_opts[] = {
+ {"hashsize", 1, 0, '1'},
+ {"probes", 1, 0, '2'},
+ {"resize", 1, 0, '3'},
+ {"from", 1, 0, '4'},
+ {"to", 1, 0, '5'},
+ {"network", 1, 0, '6'},
+ {0}
+};
+
+/* Add, del, test parser */
+ip_set_ip_t adt_parser(unsigned cmd, const char *optarg, void *data)
+{
+ struct ip_set_req_ipporthash *mydata =
+ (struct ip_set_req_ipporthash *) data;
+ char *saved = ipset_strdup(optarg);
+ char *ptr, *tmp = saved;
+
+ DP("ipporthash: %p %p", optarg, data);
+
+ ptr = strsep(&tmp, "%");
+ parse_ip(ptr, &mydata->ip);
+
+ if (tmp)
+ parse_port(tmp, &mydata->port);
+ else
+ exit_error(PARAMETER_PROBLEM,
+ "IP address and port must be specified: ip%%port");
+ free(saved);
+ return 1;
+};
+
+/*
+ * Print and save
+ */
+
+void initheader(struct set *set, const void *data)
+{
+ struct ip_set_req_ipporthash_create *header =
+ (struct ip_set_req_ipporthash_create *) data;
+ struct ip_set_ipporthash *map =
+ (struct ip_set_ipporthash *) set->settype->header;
+
+ memset(map, 0, sizeof(struct ip_set_ipporthash));
+ map->hashsize = header->hashsize;
+ map->probes = header->probes;
+ map->resize = header->resize;
+ map->first_ip = header->from;
+ map->last_ip = header->to;
+}
+
+void printheader(struct set *set, unsigned options)
+{
+ struct ip_set_ipporthash *mysetdata =
+ (struct ip_set_ipporthash *) set->settype->header;
+
+ printf(" from: %s", ip_tostring(mysetdata->first_ip, options));
+ printf(" to: %s", ip_tostring(mysetdata->last_ip, options));
+ printf(" hashsize: %u", mysetdata->hashsize);
+ printf(" probes: %u", mysetdata->probes);
+ printf(" resize: %u\n", mysetdata->resize);
+}
+
+void printips(struct set *set, void *data, size_t len, unsigned options)
+{
+ struct ip_set_ipporthash *mysetdata =
+ (struct ip_set_ipporthash *) set->settype->header;
+ size_t offset = 0;
+ ip_set_ip_t *ipptr, ip;
+ uint16_t port;
+
+ while (offset < len) {
+ ipptr = data + offset;
+ if (*ipptr) {
+ ip = (*ipptr>>16) + mysetdata->first_ip;
+ port = (uint16_t) *ipptr;
+ printf("%s%%%s\n",
+ ip_tostring(ip, options),
+ port_tostring(port, options));
+ }
+ offset += sizeof(ip_set_ip_t);
+ }
+}
+
+void saveheader(struct set *set, unsigned options)
+{
+ struct ip_set_ipporthash *mysetdata =
+ (struct ip_set_ipporthash *) 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));
+ printf(" --hashsize %u --probes %u --resize %u\n",
+ mysetdata->hashsize, mysetdata->probes, mysetdata->resize);
+}
+
+/* Print save for an IP */
+void saveips(struct set *set, void *data, size_t len, unsigned options)
+{
+ struct ip_set_ipporthash *mysetdata =
+ (struct ip_set_ipporthash *) set->settype->header;
+ size_t offset = 0;
+ ip_set_ip_t *ipptr, ip;
+ uint16_t port;
+
+ while (offset < len) {
+ ipptr = data + offset;
+ if (*ipptr) {
+ ip = (*ipptr>>16) + mysetdata->first_ip;
+ port = (uint16_t) *ipptr;
+ printf("-A %s %s%%%s\n", set->name,
+ ip_tostring(ip, options),
+ port_tostring(port, options));
+ }
+ offset += sizeof(ip_set_ip_t);
+ }
+}
+
+static char buffer[22];
+
+static char * unpack_ipport_tostring(struct set *set, ip_set_ip_t bip, unsigned options)
+{
+ struct ip_set_ipporthash *mysetdata =
+ (struct ip_set_ipporthash *) set->settype->header;
+ ip_set_ip_t ip, port;
+
+ ip = (bip>>16) + mysetdata->first_ip;
+ port = (uint16_t) bip;
+ sprintf(buffer, "%s%%%s",
+ ip_tostring(ip, options), port_tostring(port, options));
+
+ return buffer;
+}
+
+void usage(void)
+{
+ printf
+ ("-N set ipporthash --from IP --to IP\n"
+ " [--hashsize hashsize] [--probes probes ] [--resize resize]\n"
+ "-N set ipporthash --network IP/mask\n"
+ " [--hashsize hashsize] [--probes probes ] [--resize resize]\n"
+ "-A set IP%%port\n"
+ "-D set IP%%port\n"
+ "-T set IP%%port\n");
+}
+
+static struct settype settype_ipporthash = {
+ .typename = SETTYPE_NAME,
+ .protocol_version = IP_SET_PROTOCOL_VERSION,
+
+ /* Create */
+ .create_size = sizeof(struct ip_set_req_ipporthash_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_ipporthash),
+ .adt_parser = &adt_parser,
+
+ /* Printing */
+ .header_size = sizeof(struct ip_set_ipporthash),
+ .initheader = &initheader,
+ .printheader = &printheader,
+ .printips = &printips, /* We only have the unsorted version */
+ .printips_sorted = &printips,
+ .saveheader = &saveheader,
+ .saveips = &saveips,
+
+ /* Bindings */
+ .bindip_tostring = &unpack_ipport_tostring,
+ .bindip_parse = &parse_ip,
+
+ .usage = &usage,
+};
+
+void _init(void)
+{
+ settype_register(&settype_ipporthash);
+
+}
git://git.onelab.eu / iptables.git / blobdiff