diff options
Diffstat (limited to 'ipset_setlist.c')
| -rw-r--r-- | ipset_setlist.c | 219 |
1 files changed, 219 insertions, 0 deletions
diff --git a/ipset_setlist.c b/ipset_setlist.c new file mode 100644 index 0000000..b82cd6c --- /dev/null +++ b/ipset_setlist.c @@ -0,0 +1,219 @@ +/* Copyright 2008 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> +#include <stdlib.h> +#include <string.h> +#include <sys/socket.h> +#include <netinet/in.h> +#include <arpa/inet.h> + +#include <linux/netfilter_ipv4/ip_set_setlist.h> +#include "ipset.h" + +/* Initialize the create. */ +static void +create_init(void *data) +{ + struct ip_set_req_setlist_create *mydata = data; + + mydata->size = 8; +} + +/* Function which parses command options; returns true if it ate an option */ +static int +create_parse(int c, char *argv[], void *data, unsigned *flags) +{ + struct ip_set_req_setlist_create *mydata = data; + unsigned int size; + + switch (c) { + case '1': + if (string_to_number(optarg, 1, 255, &size)) + exit_error(PARAMETER_PROBLEM, + "Invalid size '%s specified: must be " + "between 1-255", optarg); + mydata->size = size; + break; + default: + return 0; + } + return 1; +} + +/* Final check; exit if not ok. */ +static void +create_final(void *data, unsigned int flags) +{ +} + +/* Create commandline options */ +static const struct option create_opts[] = { + {.name = "size", .has_arg = required_argument, .val = '1'}, + {NULL}, +}; + +static void check_setname(const char *name) +{ + if (strlen(name) > IP_SET_MAXNAMELEN - 1) + exit_error(PARAMETER_PROBLEM, + "Setname %s is longer than %d characters.", + name, IP_SET_MAXNAMELEN - 1); +} + +/* Add, del, test parser */ +static ip_set_ip_t +adt_parser(unsigned cmd, const char *optarg, void *data) +{ + struct ip_set_req_setlist *mydata = data; + char *saved = ipset_strdup(optarg); + char *ptr, *tmp = saved; + + DP("setlist: %p %p", optarg, data); + + ptr = strsep(&tmp, ","); + check_setname(ptr); + strcpy(mydata->name, ptr); + + if (!tmp) { + mydata->before = 0; + mydata->ref[0] = '\0'; + return 1; + } + + ptr = strsep(&tmp, ","); + + if (tmp == NULL || !(strcmp(ptr, "before") == 0 || strcmp(ptr, "after") == 0)) + exit_error(PARAMETER_PROBLEM, + "Syntax error, you must specify elements as setname,[before|after],setname"); + + check_setname(tmp); + strcpy(mydata->ref, tmp); + mydata->before = !strcmp(ptr, "before"); + + free(saved); + + return 1; +} + +/* + * Print and save + */ + +static void +initheader(struct set *set, const void *data) +{ + const struct ip_set_req_setlist_create *header = data; + struct ip_set_setlist *map = set->settype->header; + + memset(map, 0, sizeof(struct ip_set_setlist)); + map->size = header->size; +} + +static void +printheader(struct set *set, unsigned options) +{ + struct ip_set_setlist *mysetdata = set->settype->header; + + printf(" size: %u\n", mysetdata->size); +} + +static void +printips_sorted(struct set *set, void *data, size_t len, unsigned options) +{ + struct ip_set_setlist *mysetdata = set->settype->header; + int i; + ip_set_id_t id; + struct set *elem; + + for (i = 0; i < mysetdata->size; i++ ) { + id = *((ip_set_id_t *)data + i); + if (id == IP_SET_INVALID_ID) + return; + elem = set_find_byid(id); + printf("%s\n", elem->name); + } +} + +static void +saveheader(struct set *set, unsigned options) +{ + struct ip_set_setlist *mysetdata = set->settype->header; + + printf("-N %s %s --size %u\n", + set->name, set->settype->typename, + mysetdata->size); +} + +static void +saveips(struct set *set, void *data, size_t len, unsigned options) +{ + struct ip_set_setlist *mysetdata = set->settype->header; + int i; + ip_set_id_t id; + struct set *elem; + + for (i = 0; i < mysetdata->size; i++ ) { + id = *((ip_set_id_t *)data + i); + if (id == IP_SET_INVALID_ID) + return; + elem = set_find_byid(id); + printf("-A %s %s\n", set->name, elem->name); + } +} + +static void usage(void) +{ + printf + ("-N set setlist --size size\n" + "-A set setname[,before|after,setname]\n" + "-D set setname\n" + "-T set setname\n"); +} + +static struct settype settype_setlist = { + .typename = SETTYPE_NAME, + .protocol_version = IP_SET_PROTOCOL_VERSION, + + /* Create */ + .create_size = sizeof(struct ip_set_req_setlist_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_setlist), + .adt_parser = &adt_parser, + + /* Printing */ + .header_size = sizeof(struct ip_set_setlist), + .initheader = &initheader, + .printheader = &printheader, + .printips = &printips_sorted, /* We only have sorted version */ + .printips_sorted = &printips_sorted, + .saveheader = &saveheader, + .saveips = &saveips, + + .usage = &usage, +}; + +void _init(void) +{ + settype_register(&settype_setlist); + +} |