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-rw-r--r--src/ipset_bitmap_port.c272
1 files changed, 272 insertions, 0 deletions
diff --git a/src/ipset_bitmap_port.c b/src/ipset_bitmap_port.c
new file mode 100644
index 0000000..a1065ae
--- /dev/null
+++ b/src/ipset_bitmap_port.c
@@ -0,0 +1,272 @@
+/* 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 <stdio.h> /* *printf */
+#include <string.h> /* mem* */
+
+#include "ipset.h"
+
+#include <linux/netfilter_ipv4/ip_set_portmap.h>
+
+#define BUFLEN 30;
+
+#define OPT_CREATE_FROM 0x01U
+#define OPT_CREATE_TO 0x02U
+
+#define OPT_ADDDEL_PORT 0x01U
+
+/* Initialize the create. */
+static void
+portmap_create_init(void *data UNUSED)
+{
+ DP("create INIT");
+ /* Nothing */
+}
+
+/* Function which parses command options; returns true if it ate an option */
+static int
+portmap_create_parse(int c, char *argv[] UNUSED, void *data, unsigned *flags)
+{
+ struct ip_set_req_portmap_create *mydata = data;
+
+ DP("create_parse");
+
+ switch (c) {
+ case '1':
+ parse_port(optarg, &mydata->from);
+
+ *flags |= OPT_CREATE_FROM;
+
+ DP("--from %x (%s)", mydata->from,
+ port_tostring(mydata->from, 0));
+
+ break;
+
+ case '2':
+ parse_port(optarg, &mydata->to);
+
+ *flags |= OPT_CREATE_TO;
+
+ DP("--to %x (%s)", mydata->to,
+ port_tostring(mydata->to, 0));
+
+ break;
+
+ default:
+ return 0;
+ }
+
+ return 1;
+}
+
+/* Final check; exit if not ok. */
+static void
+portmap_create_final(void *data, unsigned int flags)
+{
+ struct ip_set_req_portmap_create *mydata = data;
+
+ if (flags == 0) {
+ exit_error(PARAMETER_PROBLEM,
+ "Need to specify --from and --to\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", mydata->from, mydata->to,
+ mydata->to - mydata->from);
+
+ 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 ports in range\n",
+ MAX_RANGE+1);
+}
+
+/* Create commandline options */
+static const struct option create_opts[] = {
+ {.name = "from", .has_arg = required_argument, .val = '1'},
+ {.name = "to", .has_arg = required_argument, .val = '2'},
+ {NULL},
+};
+
+/* Add, del, test parser */
+static ip_set_ip_t
+portmap_adt_parser(int cmd UNUSED, const char *arg, void *data)
+{
+ struct ip_set_req_portmap *mydata = data;
+
+ parse_port(arg, &mydata->ip);
+ DP("%s", port_tostring(mydata->ip, 0));
+
+ return 1;
+}
+
+/*
+ * Print and save
+ */
+
+static void
+portmap_initheader(struct set *set, const void *data)
+{
+ const struct ip_set_req_portmap_create *header = data;
+ struct ip_set_portmap *map = set->settype->header;
+
+ memset(map, 0, sizeof(struct ip_set_portmap));
+ map->first_ip = header->from;
+ map->last_ip = header->to;
+}
+
+static void
+portmap_printheader(struct set *set, unsigned options)
+{
+ struct ip_set_portmap *mysetdata = set->settype->header;
+
+ printf(" from: %s", port_tostring(mysetdata->first_ip, options));
+ printf(" to: %s\n", port_tostring(mysetdata->last_ip, options));
+}
+
+static inline void
+__portmap_printips_sorted(struct set *set, void *data,
+ u_int32_t len UNUSED, unsigned options)
+{
+ struct ip_set_portmap *mysetdata = set->settype->header;
+ ip_set_ip_t addr = mysetdata->first_ip;
+
+ DP("%u -- %u", mysetdata->first_ip, mysetdata->last_ip);
+ while (addr <= mysetdata->last_ip) {
+ if (test_bit(addr - mysetdata->first_ip, data))
+ printf("%s\n", port_tostring(addr, options));
+ addr++;
+ }
+}
+
+static void
+portmap_printips_sorted(struct set *set, void *data,
+ u_int32_t len, unsigned options,
+ char dont_align)
+{
+ ip_set_ip_t *ip;
+ size_t offset = 0;
+
+ if (dont_align)
+ return __portmap_printips_sorted(set, data, len, options);
+
+ while (offset < len) {
+ ip = data + offset;
+ printf("%s\n", port_tostring(*ip, options));
+ offset += IPSET_ALIGN(sizeof(ip_set_ip_t));
+ }
+}
+
+static void
+portmap_saveheader(struct set *set, unsigned options)
+{
+ struct ip_set_portmap *mysetdata = set->settype->header;
+
+ printf("-N %s %s --from %s",
+ set->name,
+ set->settype->typename,
+ port_tostring(mysetdata->first_ip, options));
+ printf(" --to %s\n",
+ port_tostring(mysetdata->last_ip, options));
+}
+
+static inline void
+__portmap_saveips(struct set *set, void *data,
+ u_int32_t len UNUSED, unsigned options)
+{
+ struct ip_set_portmap *mysetdata = set->settype->header;
+ ip_set_ip_t addr = mysetdata->first_ip;
+
+ while (addr <= mysetdata->last_ip) {
+ DP("addr: %lu, last_ip %lu", (long unsigned)addr, (long unsigned)mysetdata->last_ip);
+ if (test_bit(addr - mysetdata->first_ip, data))
+ printf("-A %s %s\n",
+ set->name,
+ port_tostring(addr, options));
+ addr++;
+ }
+}
+
+static void
+portmap_saveips(struct set *set, void *data,
+ u_int32_t len, unsigned options,
+ char dont_align)
+{
+ ip_set_ip_t *ip;
+ size_t offset = 0;
+
+ if (dont_align)
+ return __portmap_saveips(set, data, len, options);
+
+ while (offset < len) {
+ ip = data + offset;
+ printf("-A %s %s\n", set->name, port_tostring(*ip, options));
+ offset += IPSET_ALIGN(sizeof(ip_set_ip_t));
+ }
+}
+
+static void
+portmap_usage(void)
+{
+ printf
+ ("-N set portmap --from PORT --to PORT\n"
+ "-A set PORT\n"
+ "-D set PORT\n"
+ "-T set PORT\n");
+}
+
+static struct settype settype_portmap = {
+ .typename = SETTYPE_NAME,
+ .protocol_version = IP_SET_PROTOCOL_VERSION,
+
+ /* Create */
+ .create_size = sizeof(struct ip_set_req_portmap_create),
+ .create_init = portmap_create_init,
+ .create_parse = portmap_create_parse,
+ .create_final = portmap_create_final,
+ .create_opts = create_opts,
+
+ /* Add/del/test */
+ .adt_size = sizeof(struct ip_set_req_portmap),
+ .adt_parser = portmap_adt_parser,
+
+ /* Printing */
+ .header_size = sizeof(struct ip_set_portmap),
+ .initheader = portmap_initheader,
+ .printheader = portmap_printheader,
+ .printips = portmap_printips_sorted,
+ .printips_sorted = portmap_printips_sorted,
+ .saveheader = portmap_saveheader,
+ .saveips = portmap_saveips,
+
+ .usage = portmap_usage,
+};
+
+CONSTRUCTOR(portmap)
+{
+ settype_register(&settype_portmap);
+
+}