diff options
Diffstat (limited to 'src/ipset_bitmap_port.c')
| -rw-r--r-- | src/ipset_bitmap_port.c | 350 |
1 files changed, 82 insertions, 268 deletions
diff --git a/src/ipset_bitmap_port.c b/src/ipset_bitmap_port.c index a1065ae..11566ce 100644 --- a/src/ipset_bitmap_port.c +++ b/src/ipset_bitmap_port.c @@ -1,272 +1,86 @@ -/* Copyright 2004 Jozsef Kadlecsik (kadlec@blackhole.kfki.hu) +/* Copyright 2007-2010 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 + * it under the terms of the GNU General Public License version 2 as + * published by the Free Software Foundation. */ - - -#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}, +#include <libipset/data.h> /* IPSET_OPT_* */ +#include <libipset/parse.h> /* parser functions */ +#include <libipset/print.h> /* printing functions */ +#include <libipset/types.h> /* prototypes */ + +/* Parse commandline arguments */ +static const struct ipset_arg bitmap_port_create_args[] = { + { .name = { "range", "--range", NULL }, + .has_arg = IPSET_MANDATORY_ARG, .opt = IPSET_OPT_PORT, + .parse = ipset_parse_port, .print = ipset_print_port, + }, + { .name = { "timeout", "--timeout", NULL }, + .has_arg = IPSET_MANDATORY_ARG, .opt = IPSET_OPT_TIMEOUT, + .parse = ipset_parse_uint32, .print = ipset_print_number, + }, + /* Backward compatibility */ + { .name = { "--from", NULL }, + .has_arg = IPSET_MANDATORY_ARG, .opt = IPSET_OPT_PORT, + .parse = ipset_parse_single_port, + }, + { .name = { "--to", NULL }, + .has_arg = IPSET_MANDATORY_ARG, .opt = IPSET_OPT_PORT_TO, + .parse = ipset_parse_single_port, + }, + { }, +}; + +static const struct ipset_arg bitmap_port_add_args[] = { + { .name = { "timeout", "--timeout", NULL }, + .has_arg = IPSET_MANDATORY_ARG, .opt = IPSET_OPT_TIMEOUT, + .parse = ipset_parse_uint32, .print = ipset_print_number, + }, + { }, +}; + +static const char bitmap_port_usage[] = +"create SETNAME bitmap:port range FROM-TO\n" +" [timeout VALUE]\n" +"add SETNAME PORT|FROM-TO [timeout VALUE]\n" +"del SETNAME PORT|FROM-TO\n" +"test SETNAME PORT\n"; + +struct ipset_type ipset_bitmap_port0 = { + .name = "bitmap:port", + .alias = "portmap", + .revision = 0, + .family = AF_UNSPEC, + .dimension = IPSET_DIM_ONE, + .elem = { + [IPSET_DIM_ONE] = { + .parse = ipset_parse_port, + .print = ipset_print_port, + .opt = IPSET_OPT_PORT + }, + }, + .args = { + [IPSET_CREATE] = bitmap_port_create_args, + [IPSET_ADD] = bitmap_port_add_args, + }, + .mandatory = { + [IPSET_CREATE] = IPSET_FLAG(IPSET_OPT_PORT) + | IPSET_FLAG(IPSET_OPT_PORT_TO), + [IPSET_ADD] = IPSET_FLAG(IPSET_OPT_PORT), + [IPSET_DEL] = IPSET_FLAG(IPSET_OPT_PORT), + [IPSET_TEST] = IPSET_FLAG(IPSET_OPT_PORT), + }, + .full = { + [IPSET_CREATE] = IPSET_FLAG(IPSET_OPT_PORT) + | IPSET_FLAG(IPSET_OPT_PORT_TO) + | IPSET_FLAG(IPSET_OPT_TIMEOUT), + [IPSET_ADD] = IPSET_FLAG(IPSET_OPT_PORT) + | IPSET_FLAG(IPSET_OPT_PORT_TO) + | IPSET_FLAG(IPSET_OPT_TIMEOUT), + [IPSET_DEL] = IPSET_FLAG(IPSET_OPT_PORT) + | IPSET_FLAG(IPSET_OPT_PORT_TO), + [IPSET_TEST] = IPSET_FLAG(IPSET_OPT_PORT), + }, + + .usage = bitmap_port_usage, }; - -/* 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); - -} |