ip6tables.c revision 1639fe86579f86f5f6a954a9b0adde2e16ad1980
143dee220252ef0b42c5f8a3bb1eca97f84f2565fArgyrios Kyrtzidis/* Code to take an ip6tables-style command line and do it. */ 243dee220252ef0b42c5f8a3bb1eca97f84f2565fArgyrios Kyrtzidis 343dee220252ef0b42c5f8a3bb1eca97f84f2565fArgyrios Kyrtzidis/* 443dee220252ef0b42c5f8a3bb1eca97f84f2565fArgyrios Kyrtzidis * Author: Paul.Russell@rustcorp.com.au and mneuling@radlogic.com.au 543dee220252ef0b42c5f8a3bb1eca97f84f2565fArgyrios Kyrtzidis * 643dee220252ef0b42c5f8a3bb1eca97f84f2565fArgyrios Kyrtzidis * (C) 2000-2002 by the netfilter coreteam <coreteam@netfilter.org>: 743dee220252ef0b42c5f8a3bb1eca97f84f2565fArgyrios Kyrtzidis * Paul 'Rusty' Russell <rusty@rustcorp.com.au> 843dee220252ef0b42c5f8a3bb1eca97f84f2565fArgyrios Kyrtzidis * Marc Boucher <marc+nf@mbsi.ca> 943dee220252ef0b42c5f8a3bb1eca97f84f2565fArgyrios Kyrtzidis * James Morris <jmorris@intercode.com.au> 1043dee220252ef0b42c5f8a3bb1eca97f84f2565fArgyrios Kyrtzidis * Harald Welte <laforge@gnumonks.org> 1143dee220252ef0b42c5f8a3bb1eca97f84f2565fArgyrios Kyrtzidis * Jozsef Kadlecsik <kadlec@blackhole.kfki.hu> 1243dee220252ef0b42c5f8a3bb1eca97f84f2565fArgyrios Kyrtzidis * 1343dee220252ef0b42c5f8a3bb1eca97f84f2565fArgyrios Kyrtzidis * This program is free software; you can redistribute it and/or modify 1443dee220252ef0b42c5f8a3bb1eca97f84f2565fArgyrios Kyrtzidis * it under the terms of the GNU General Public License as published by 1543dee220252ef0b42c5f8a3bb1eca97f84f2565fArgyrios Kyrtzidis * the Free Software Foundation; either version 2 of the License, or 1643dee220252ef0b42c5f8a3bb1eca97f84f2565fArgyrios Kyrtzidis * (at your option) any later version. 172e471a3e476396be1ddca4ab8b9df721bcfc9437Argyrios Kyrtzidis * 1843dee220252ef0b42c5f8a3bb1eca97f84f2565fArgyrios Kyrtzidis * This program is distributed in the hope that it will be useful, 199fb9474c5b267400d4abfbff63c8b39f378235d4Argyrios Kyrtzidis * but WITHOUT ANY WARRANTY; without even the implied warranty of 20769ce3e93ad35bd9ac28e4d8b8f035ae4fd9a5b5Argyrios Kyrtzidis * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 2135bdbf40624beba3fc00cb72ab444659939c1a6bTed Kremenek * GNU General Public License for more details. 229fb9474c5b267400d4abfbff63c8b39f378235d4Argyrios Kyrtzidis * 2343dee220252ef0b42c5f8a3bb1eca97f84f2565fArgyrios Kyrtzidis * You should have received a copy of the GNU General Public License 2443dee220252ef0b42c5f8a3bb1eca97f84f2565fArgyrios Kyrtzidis * along with this program; if not, write to the Free Software 259fb9474c5b267400d4abfbff63c8b39f378235d4Argyrios Kyrtzidis * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. 26769ce3e93ad35bd9ac28e4d8b8f035ae4fd9a5b5Argyrios Kyrtzidis */ 27e1bfb7ae0dd0762c88e1fd94746e973c37f2e04eArgyrios Kyrtzidis 2843dee220252ef0b42c5f8a3bb1eca97f84f2565fArgyrios Kyrtzidis#include <getopt.h> 2943dee220252ef0b42c5f8a3bb1eca97f84f2565fArgyrios Kyrtzidis#include <string.h> 30ca804539d908d3a0e8c72a0df5f1f571d29490bbTed Kremenek#include <netdb.h> 3143dee220252ef0b42c5f8a3bb1eca97f84f2565fArgyrios Kyrtzidis#include <errno.h> 329fb9474c5b267400d4abfbff63c8b39f378235d4Argyrios Kyrtzidis#include <stdio.h> 339fb9474c5b267400d4abfbff63c8b39f378235d4Argyrios Kyrtzidis#include <stdlib.h> 34769ce3e93ad35bd9ac28e4d8b8f035ae4fd9a5b5Argyrios Kyrtzidis#include <ctype.h> 35769ce3e93ad35bd9ac28e4d8b8f035ae4fd9a5b5Argyrios Kyrtzidis#include <stdarg.h> 36769ce3e93ad35bd9ac28e4d8b8f035ae4fd9a5b5Argyrios Kyrtzidis#include <stdbool.h> 37e1bfb7ae0dd0762c88e1fd94746e973c37f2e04eArgyrios Kyrtzidis#include <limits.h> 38769ce3e93ad35bd9ac28e4d8b8f035ae4fd9a5b5Argyrios Kyrtzidis#include <ip6tables.h> 3930726c6baee1417307236e854f1474fdb3cedb98Argyrios Kyrtzidis#include <xtables.h> 4018c66fdc3c4008d335885695fe36fb5353c5f672Ted Kremenek#include <arpa/inet.h> 41af5800a1e287990bb547e052f257adeeae5ab476Argyrios Kyrtzidis#include <unistd.h> 42cc05d511b26ac6dc80fcbcc78ac305d2755aa0b9Argyrios Kyrtzidis#include <fcntl.h> 43183ff98f425d470c2a0276880aaf43496c9dad14Argyrios Kyrtzidis#include <sys/types.h> 44183ff98f425d470c2a0276880aaf43496c9dad14Argyrios Kyrtzidis#include <sys/socket.h> 45769ce3e93ad35bd9ac28e4d8b8f035ae4fd9a5b5Argyrios Kyrtzidis#include "ip6tables-multi.h" 46e1bfb7ae0dd0762c88e1fd94746e973c37f2e04eArgyrios Kyrtzidis#include "xshared.h" 47e1bfb7ae0dd0762c88e1fd94746e973c37f2e04eArgyrios Kyrtzidis 48e1bfb7ae0dd0762c88e1fd94746e973c37f2e04eArgyrios Kyrtzidis#ifndef TRUE 49e1bfb7ae0dd0762c88e1fd94746e973c37f2e04eArgyrios Kyrtzidis#define TRUE 1 50e1bfb7ae0dd0762c88e1fd94746e973c37f2e04eArgyrios Kyrtzidis#endif 51e1bfb7ae0dd0762c88e1fd94746e973c37f2e04eArgyrios Kyrtzidis#ifndef FALSE 524d840e9ac4d8e9baa9459ca3dd7ab14ae884a80fArgyrios Kyrtzidis#define FALSE 0 534d840e9ac4d8e9baa9459ca3dd7ab14ae884a80fArgyrios Kyrtzidis#endif 5435bdbf40624beba3fc00cb72ab444659939c1a6bTed Kremenek 5535bdbf40624beba3fc00cb72ab444659939c1a6bTed Kremenek#define FMT_NUMERIC 0x0001 5635bdbf40624beba3fc00cb72ab444659939c1a6bTed Kremenek#define FMT_NOCOUNTS 0x0002 5735bdbf40624beba3fc00cb72ab444659939c1a6bTed Kremenek#define FMT_KILOMEGAGIGA 0x0004 5835bdbf40624beba3fc00cb72ab444659939c1a6bTed Kremenek#define FMT_OPTIONS 0x0008 59ca804539d908d3a0e8c72a0df5f1f571d29490bbTed Kremenek#define FMT_NOTABLE 0x0010 60ca804539d908d3a0e8c72a0df5f1f571d29490bbTed Kremenek#define FMT_NOTARGET 0x0020 6135bdbf40624beba3fc00cb72ab444659939c1a6bTed Kremenek#define FMT_VIA 0x0040 6235bdbf40624beba3fc00cb72ab444659939c1a6bTed Kremenek#define FMT_NONEWLINE 0x0080 6335bdbf40624beba3fc00cb72ab444659939c1a6bTed Kremenek#define FMT_LINENUMBERS 0x0100 6435bdbf40624beba3fc00cb72ab444659939c1a6bTed Kremenek 6535bdbf40624beba3fc00cb72ab444659939c1a6bTed Kremenek#define FMT_PRINT_RULE (FMT_NOCOUNTS | FMT_OPTIONS | FMT_VIA \ 664d840e9ac4d8e9baa9459ca3dd7ab14ae884a80fArgyrios Kyrtzidis | FMT_NUMERIC | FMT_NOTABLE) 674d840e9ac4d8e9baa9459ca3dd7ab14ae884a80fArgyrios Kyrtzidis#define FMT(tab,notab) ((format) & FMT_NOTABLE ? (notab) : (tab)) 684d840e9ac4d8e9baa9459ca3dd7ab14ae884a80fArgyrios Kyrtzidis 69769ce3e93ad35bd9ac28e4d8b8f035ae4fd9a5b5Argyrios Kyrtzidis 70769ce3e93ad35bd9ac28e4d8b8f035ae4fd9a5b5Argyrios Kyrtzidis#define CMD_NONE 0x0000U 71ca804539d908d3a0e8c72a0df5f1f571d29490bbTed Kremenek#define CMD_INSERT 0x0001U 72ca804539d908d3a0e8c72a0df5f1f571d29490bbTed Kremenek#define CMD_DELETE 0x0002U 734d840e9ac4d8e9baa9459ca3dd7ab14ae884a80fArgyrios Kyrtzidis#define CMD_DELETE_NUM 0x0004U 74769ce3e93ad35bd9ac28e4d8b8f035ae4fd9a5b5Argyrios Kyrtzidis#define CMD_REPLACE 0x0008U 75769ce3e93ad35bd9ac28e4d8b8f035ae4fd9a5b5Argyrios Kyrtzidis#define CMD_APPEND 0x0010U 764d840e9ac4d8e9baa9459ca3dd7ab14ae884a80fArgyrios Kyrtzidis#define CMD_LIST 0x0020U 774d840e9ac4d8e9baa9459ca3dd7ab14ae884a80fArgyrios Kyrtzidis#define CMD_FLUSH 0x0040U 784d840e9ac4d8e9baa9459ca3dd7ab14ae884a80fArgyrios Kyrtzidis#define CMD_ZERO 0x0080U 79769ce3e93ad35bd9ac28e4d8b8f035ae4fd9a5b5Argyrios Kyrtzidis#define CMD_NEW_CHAIN 0x0100U 80769ce3e93ad35bd9ac28e4d8b8f035ae4fd9a5b5Argyrios Kyrtzidis#define CMD_DELETE_CHAIN 0x0200U 81ca804539d908d3a0e8c72a0df5f1f571d29490bbTed Kremenek#define CMD_SET_POLICY 0x0400U 82ca804539d908d3a0e8c72a0df5f1f571d29490bbTed Kremenek#define CMD_RENAME_CHAIN 0x0800U 834d840e9ac4d8e9baa9459ca3dd7ab14ae884a80fArgyrios Kyrtzidis#define CMD_LIST_RULES 0x1000U 84769ce3e93ad35bd9ac28e4d8b8f035ae4fd9a5b5Argyrios Kyrtzidis#define CMD_ZERO_NUM 0x2000U 85769ce3e93ad35bd9ac28e4d8b8f035ae4fd9a5b5Argyrios Kyrtzidis#define CMD_CHECK 0x4000U 864d840e9ac4d8e9baa9459ca3dd7ab14ae884a80fArgyrios Kyrtzidis#define NUMBER_OF_CMD 16 874d840e9ac4d8e9baa9459ca3dd7ab14ae884a80fArgyrios Kyrtzidisstatic const char cmdflags[] = { 'I', 'D', 'D', 'R', 'A', 'L', 'F', 'Z', 884d840e9ac4d8e9baa9459ca3dd7ab14ae884a80fArgyrios Kyrtzidis 'Z', 'N', 'X', 'P', 'E', 'S', 'C' }; 89769ce3e93ad35bd9ac28e4d8b8f035ae4fd9a5b5Argyrios Kyrtzidis 90769ce3e93ad35bd9ac28e4d8b8f035ae4fd9a5b5Argyrios Kyrtzidis#define NUMBER_OF_OPT ARRAY_SIZE(optflags) 91ca804539d908d3a0e8c72a0df5f1f571d29490bbTed Kremenekstatic const char optflags[] 92ca804539d908d3a0e8c72a0df5f1f571d29490bbTed Kremenek= { 'n', 's', 'd', 'p', 'j', 'v', 'x', 'i', 'o', '0', 'c'}; 934d840e9ac4d8e9baa9459ca3dd7ab14ae884a80fArgyrios Kyrtzidis 94769ce3e93ad35bd9ac28e4d8b8f035ae4fd9a5b5Argyrios Kyrtzidisstatic struct option original_opts[] = { 95769ce3e93ad35bd9ac28e4d8b8f035ae4fd9a5b5Argyrios Kyrtzidis {.name = "append", .has_arg = 1, .val = 'A'}, 964d840e9ac4d8e9baa9459ca3dd7ab14ae884a80fArgyrios Kyrtzidis {.name = "delete", .has_arg = 1, .val = 'D'}, 974d840e9ac4d8e9baa9459ca3dd7ab14ae884a80fArgyrios Kyrtzidis {.name = "check" , .has_arg = 1, .val = 'C'}, 984d840e9ac4d8e9baa9459ca3dd7ab14ae884a80fArgyrios Kyrtzidis {.name = "insert", .has_arg = 1, .val = 'I'}, 99769ce3e93ad35bd9ac28e4d8b8f035ae4fd9a5b5Argyrios Kyrtzidis {.name = "replace", .has_arg = 1, .val = 'R'}, 100769ce3e93ad35bd9ac28e4d8b8f035ae4fd9a5b5Argyrios Kyrtzidis {.name = "list", .has_arg = 2, .val = 'L'}, 101ca804539d908d3a0e8c72a0df5f1f571d29490bbTed Kremenek {.name = "list-rules", .has_arg = 2, .val = 'S'}, 102ca804539d908d3a0e8c72a0df5f1f571d29490bbTed Kremenek {.name = "flush", .has_arg = 2, .val = 'F'}, 1034d840e9ac4d8e9baa9459ca3dd7ab14ae884a80fArgyrios Kyrtzidis {.name = "zero", .has_arg = 2, .val = 'Z'}, 104769ce3e93ad35bd9ac28e4d8b8f035ae4fd9a5b5Argyrios Kyrtzidis {.name = "new-chain", .has_arg = 1, .val = 'N'}, 10543dee220252ef0b42c5f8a3bb1eca97f84f2565fArgyrios Kyrtzidis {.name = "delete-chain", .has_arg = 2, .val = 'X'}, 10643dee220252ef0b42c5f8a3bb1eca97f84f2565fArgyrios Kyrtzidis {.name = "rename-chain", .has_arg = 1, .val = 'E'}, 1072e471a3e476396be1ddca4ab8b9df721bcfc9437Argyrios Kyrtzidis {.name = "policy", .has_arg = 1, .val = 'P'}, 1082e471a3e476396be1ddca4ab8b9df721bcfc9437Argyrios Kyrtzidis {.name = "source", .has_arg = 1, .val = 's'}, 10943dee220252ef0b42c5f8a3bb1eca97f84f2565fArgyrios Kyrtzidis {.name = "destination", .has_arg = 1, .val = 'd'}, 1102e471a3e476396be1ddca4ab8b9df721bcfc9437Argyrios Kyrtzidis {.name = "src", .has_arg = 1, .val = 's'}, /* synonym */ 1119fb9474c5b267400d4abfbff63c8b39f378235d4Argyrios Kyrtzidis {.name = "dst", .has_arg = 1, .val = 'd'}, /* synonym */ 1129fb9474c5b267400d4abfbff63c8b39f378235d4Argyrios Kyrtzidis {.name = "protocol", .has_arg = 1, .val = 'p'}, 113d655ab28fdf7c940d3f79f8f287954d7f76e0977Argyrios Kyrtzidis {.name = "in-interface", .has_arg = 1, .val = 'i'}, 114d655ab28fdf7c940d3f79f8f287954d7f76e0977Argyrios Kyrtzidis {.name = "jump", .has_arg = 1, .val = 'j'}, 115deb6447d0029bdb122397fafb5fa2a4e76f2e555Argyrios Kyrtzidis {.name = "table", .has_arg = 1, .val = 't'}, 116deb6447d0029bdb122397fafb5fa2a4e76f2e555Argyrios Kyrtzidis {.name = "match", .has_arg = 1, .val = 'm'}, 1172e471a3e476396be1ddca4ab8b9df721bcfc9437Argyrios Kyrtzidis {.name = "numeric", .has_arg = 0, .val = 'n'}, 1182e471a3e476396be1ddca4ab8b9df721bcfc9437Argyrios Kyrtzidis {.name = "out-interface", .has_arg = 1, .val = 'o'}, 119ca804539d908d3a0e8c72a0df5f1f571d29490bbTed Kremenek {.name = "verbose", .has_arg = 0, .val = 'v'}, 120ca804539d908d3a0e8c72a0df5f1f571d29490bbTed Kremenek {.name = "exact", .has_arg = 0, .val = 'x'}, 1214d840e9ac4d8e9baa9459ca3dd7ab14ae884a80fArgyrios Kyrtzidis {.name = "version", .has_arg = 0, .val = 'V'}, 1229fb9474c5b267400d4abfbff63c8b39f378235d4Argyrios Kyrtzidis {.name = "help", .has_arg = 2, .val = 'h'}, 1239fb9474c5b267400d4abfbff63c8b39f378235d4Argyrios Kyrtzidis {.name = "line-numbers", .has_arg = 0, .val = '0'}, 1249fb9474c5b267400d4abfbff63c8b39f378235d4Argyrios Kyrtzidis {.name = "modprobe", .has_arg = 1, .val = 'M'}, 1259fb9474c5b267400d4abfbff63c8b39f378235d4Argyrios Kyrtzidis {.name = "set-counters", .has_arg = 1, .val = 'c'}, 1269fb9474c5b267400d4abfbff63c8b39f378235d4Argyrios Kyrtzidis {.name = "goto", .has_arg = 1, .val = 'g'}, 1279fb9474c5b267400d4abfbff63c8b39f378235d4Argyrios Kyrtzidis {.name = "ipv4", .has_arg = 0, .val = '4'}, 1283fe71f445f76003649b5da24209e80225a7ee74fArgyrios Kyrtzidis {.name = "ipv6", .has_arg = 0, .val = '6'}, 1293fe71f445f76003649b5da24209e80225a7ee74fArgyrios Kyrtzidis {NULL}, 1309fb9474c5b267400d4abfbff63c8b39f378235d4Argyrios Kyrtzidis}; 1313fe71f445f76003649b5da24209e80225a7ee74fArgyrios Kyrtzidis 132deb6447d0029bdb122397fafb5fa2a4e76f2e555Argyrios Kyrtzidisvoid ip6tables_exit_error(enum xtables_exittype status, const char *msg, ...) __attribute__((noreturn, format(printf,2,3))); 1333fe71f445f76003649b5da24209e80225a7ee74fArgyrios Kyrtzidisstruct xtables_globals ip6tables_globals = { 1343fe71f445f76003649b5da24209e80225a7ee74fArgyrios Kyrtzidis .option_offset = 0, 1353fe71f445f76003649b5da24209e80225a7ee74fArgyrios Kyrtzidis .program_version = IPTABLES_VERSION, 1363fe71f445f76003649b5da24209e80225a7ee74fArgyrios Kyrtzidis .orig_opts = original_opts, 1379fb9474c5b267400d4abfbff63c8b39f378235d4Argyrios Kyrtzidis .exit_err = ip6tables_exit_error, 138769ce3e93ad35bd9ac28e4d8b8f035ae4fd9a5b5Argyrios Kyrtzidis}; 1399fb9474c5b267400d4abfbff63c8b39f378235d4Argyrios Kyrtzidis 1403fe71f445f76003649b5da24209e80225a7ee74fArgyrios Kyrtzidis/* Table of legal combinations of commands and options. If any of the 1413fe71f445f76003649b5da24209e80225a7ee74fArgyrios Kyrtzidis * given commands make an option legal, that option is legal (applies to 1429fb9474c5b267400d4abfbff63c8b39f378235d4Argyrios Kyrtzidis * CMD_LIST and CMD_ZERO only). 14343dee220252ef0b42c5f8a3bb1eca97f84f2565fArgyrios Kyrtzidis * Key: 1449fb9474c5b267400d4abfbff63c8b39f378235d4Argyrios Kyrtzidis * + compulsory 145769ce3e93ad35bd9ac28e4d8b8f035ae4fd9a5b5Argyrios Kyrtzidis * x illegal 1469fb9474c5b267400d4abfbff63c8b39f378235d4Argyrios Kyrtzidis * optional 1479fb9474c5b267400d4abfbff63c8b39f378235d4Argyrios Kyrtzidis */ 1489fb9474c5b267400d4abfbff63c8b39f378235d4Argyrios Kyrtzidis 1499fb9474c5b267400d4abfbff63c8b39f378235d4Argyrios Kyrtzidisstatic const char commands_v_options[NUMBER_OF_CMD][NUMBER_OF_OPT] = 1509fb9474c5b267400d4abfbff63c8b39f378235d4Argyrios Kyrtzidis/* Well, it's better than "Re: Linux vs FreeBSD" */ 1519fb9474c5b267400d4abfbff63c8b39f378235d4Argyrios Kyrtzidis{ 1529fb9474c5b267400d4abfbff63c8b39f378235d4Argyrios Kyrtzidis /* -n -s -d -p -j -v -x -i -o --line -c */ 1539fb9474c5b267400d4abfbff63c8b39f378235d4Argyrios Kyrtzidis/*INSERT*/ {'x',' ',' ',' ',' ',' ','x',' ',' ','x',' '}, 1549fb9474c5b267400d4abfbff63c8b39f378235d4Argyrios Kyrtzidis/*DELETE*/ {'x',' ',' ',' ',' ',' ','x',' ',' ','x','x'}, 1559fb9474c5b267400d4abfbff63c8b39f378235d4Argyrios Kyrtzidis/*DELETE_NUM*/{'x','x','x','x','x',' ','x','x','x','x','x'}, 1569fb9474c5b267400d4abfbff63c8b39f378235d4Argyrios Kyrtzidis/*REPLACE*/ {'x',' ',' ',' ',' ',' ','x',' ',' ','x',' '}, 157769ce3e93ad35bd9ac28e4d8b8f035ae4fd9a5b5Argyrios Kyrtzidis/*APPEND*/ {'x',' ',' ',' ',' ',' ','x',' ',' ','x',' '}, 158769ce3e93ad35bd9ac28e4d8b8f035ae4fd9a5b5Argyrios Kyrtzidis/*LIST*/ {' ','x','x','x','x',' ',' ','x','x',' ','x'}, 159769ce3e93ad35bd9ac28e4d8b8f035ae4fd9a5b5Argyrios Kyrtzidis/*FLUSH*/ {'x','x','x','x','x',' ','x','x','x','x','x'}, 160769ce3e93ad35bd9ac28e4d8b8f035ae4fd9a5b5Argyrios Kyrtzidis/*ZERO*/ {'x','x','x','x','x',' ','x','x','x','x','x'}, 161c41f3652f4e836cff988320bad2d6c5f416ebe1fAnna Zaks/*ZERO_NUM*/ {'x','x','x','x','x',' ','x','x','x','x','x'}, 162c41f3652f4e836cff988320bad2d6c5f416ebe1fAnna Zaks/*NEW_CHAIN*/ {'x','x','x','x','x',' ','x','x','x','x','x'}, 163c41f3652f4e836cff988320bad2d6c5f416ebe1fAnna Zaks/*DEL_CHAIN*/ {'x','x','x','x','x',' ','x','x','x','x','x'}, 164c41f3652f4e836cff988320bad2d6c5f416ebe1fAnna Zaks/*SET_POLICY*/{'x','x','x','x','x',' ','x','x','x','x',' '}, 165c41f3652f4e836cff988320bad2d6c5f416ebe1fAnna Zaks/*RENAME*/ {'x','x','x','x','x',' ','x','x','x','x','x'}, 166769ce3e93ad35bd9ac28e4d8b8f035ae4fd9a5b5Argyrios Kyrtzidis/*LIST_RULES*/{'x','x','x','x','x',' ','x','x','x','x','x'}, 167cd50e136ad7dc721822f5e6350769a37c216612dArgyrios Kyrtzidis/*CHECK*/ {'x',' ',' ',' ',' ',' ','x',' ',' ','x','x'}, 168769ce3e93ad35bd9ac28e4d8b8f035ae4fd9a5b5Argyrios Kyrtzidis}; 169769ce3e93ad35bd9ac28e4d8b8f035ae4fd9a5b5Argyrios Kyrtzidis 170769ce3e93ad35bd9ac28e4d8b8f035ae4fd9a5b5Argyrios Kyrtzidisstatic const unsigned int inverse_for_options[NUMBER_OF_OPT] = 171769ce3e93ad35bd9ac28e4d8b8f035ae4fd9a5b5Argyrios Kyrtzidis{ 172769ce3e93ad35bd9ac28e4d8b8f035ae4fd9a5b5Argyrios Kyrtzidis/* -n */ 0, 173769ce3e93ad35bd9ac28e4d8b8f035ae4fd9a5b5Argyrios Kyrtzidis/* -s */ IP6T_INV_SRCIP, 174c41f3652f4e836cff988320bad2d6c5f416ebe1fAnna Zaks/* -d */ IP6T_INV_DSTIP, 175c41f3652f4e836cff988320bad2d6c5f416ebe1fAnna Zaks/* -p */ IP6T_INV_PROTO, 176c41f3652f4e836cff988320bad2d6c5f416ebe1fAnna Zaks/* -j */ 0, 177c41f3652f4e836cff988320bad2d6c5f416ebe1fAnna Zaks/* -v */ 0, 178c41f3652f4e836cff988320bad2d6c5f416ebe1fAnna Zaks/* -x */ 0, 179769ce3e93ad35bd9ac28e4d8b8f035ae4fd9a5b5Argyrios Kyrtzidis/* -i */ IP6T_INV_VIA_IN, 180cd50e136ad7dc721822f5e6350769a37c216612dArgyrios Kyrtzidis/* -o */ IP6T_INV_VIA_OUT, 181769ce3e93ad35bd9ac28e4d8b8f035ae4fd9a5b5Argyrios Kyrtzidis/*--line*/ 0, 182769ce3e93ad35bd9ac28e4d8b8f035ae4fd9a5b5Argyrios Kyrtzidis/* -c */ 0, 183769ce3e93ad35bd9ac28e4d8b8f035ae4fd9a5b5Argyrios Kyrtzidis}; 184769ce3e93ad35bd9ac28e4d8b8f035ae4fd9a5b5Argyrios Kyrtzidis 185769ce3e93ad35bd9ac28e4d8b8f035ae4fd9a5b5Argyrios Kyrtzidis#define opts ip6tables_globals.opts 186769ce3e93ad35bd9ac28e4d8b8f035ae4fd9a5b5Argyrios Kyrtzidis#define prog_name ip6tables_globals.program_name 187769ce3e93ad35bd9ac28e4d8b8f035ae4fd9a5b5Argyrios Kyrtzidis#define prog_vers ip6tables_globals.program_version 188cd50e136ad7dc721822f5e6350769a37c216612dArgyrios Kyrtzidis/* A few hardcoded protocols for 'all' and in case the user has no 189769ce3e93ad35bd9ac28e4d8b8f035ae4fd9a5b5Argyrios Kyrtzidis /etc/protocols */ 190769ce3e93ad35bd9ac28e4d8b8f035ae4fd9a5b5Argyrios Kyrtzidisstruct pprot { 191769ce3e93ad35bd9ac28e4d8b8f035ae4fd9a5b5Argyrios Kyrtzidis const char *name; 192769ce3e93ad35bd9ac28e4d8b8f035ae4fd9a5b5Argyrios Kyrtzidis uint8_t num; 193cd50e136ad7dc721822f5e6350769a37c216612dArgyrios Kyrtzidis}; 194769ce3e93ad35bd9ac28e4d8b8f035ae4fd9a5b5Argyrios Kyrtzidis 195769ce3e93ad35bd9ac28e4d8b8f035ae4fd9a5b5Argyrios Kyrtzidisstatic void __attribute__((noreturn)) 196769ce3e93ad35bd9ac28e4d8b8f035ae4fd9a5b5Argyrios Kyrtzidisexit_tryhelp(int status) 197769ce3e93ad35bd9ac28e4d8b8f035ae4fd9a5b5Argyrios Kyrtzidis{ 198769ce3e93ad35bd9ac28e4d8b8f035ae4fd9a5b5Argyrios Kyrtzidis if (line != -1) 199769ce3e93ad35bd9ac28e4d8b8f035ae4fd9a5b5Argyrios Kyrtzidis fprintf(stderr, "Error occurred at line: %d\n", line); 200769ce3e93ad35bd9ac28e4d8b8f035ae4fd9a5b5Argyrios Kyrtzidis fprintf(stderr, "Try `%s -h' or '%s --help' for more information.\n", 201cd50e136ad7dc721822f5e6350769a37c216612dArgyrios Kyrtzidis prog_name, prog_name); 202769ce3e93ad35bd9ac28e4d8b8f035ae4fd9a5b5Argyrios Kyrtzidis xtables_free_opts(1); 203769ce3e93ad35bd9ac28e4d8b8f035ae4fd9a5b5Argyrios Kyrtzidis exit(status); 204769ce3e93ad35bd9ac28e4d8b8f035ae4fd9a5b5Argyrios Kyrtzidis} 205769ce3e93ad35bd9ac28e4d8b8f035ae4fd9a5b5Argyrios Kyrtzidis 206769ce3e93ad35bd9ac28e4d8b8f035ae4fd9a5b5Argyrios Kyrtzidisstatic void 207769ce3e93ad35bd9ac28e4d8b8f035ae4fd9a5b5Argyrios Kyrtzidisexit_printhelp(const struct xtables_rule_match *matches) 208769ce3e93ad35bd9ac28e4d8b8f035ae4fd9a5b5Argyrios Kyrtzidis{ 209cd50e136ad7dc721822f5e6350769a37c216612dArgyrios Kyrtzidis printf("%s v%s\n\n" 210cd50e136ad7dc721822f5e6350769a37c216612dArgyrios Kyrtzidis"Usage: %s -[ACD] chain rule-specification [options]\n" 211769ce3e93ad35bd9ac28e4d8b8f035ae4fd9a5b5Argyrios Kyrtzidis" %s -I chain [rulenum] rule-specification [options]\n" 212769ce3e93ad35bd9ac28e4d8b8f035ae4fd9a5b5Argyrios Kyrtzidis" %s -R chain rulenum rule-specification [options]\n" 213769ce3e93ad35bd9ac28e4d8b8f035ae4fd9a5b5Argyrios Kyrtzidis" %s -D chain rulenum [options]\n" 214769ce3e93ad35bd9ac28e4d8b8f035ae4fd9a5b5Argyrios Kyrtzidis" %s -[LS] [chain [rulenum]] [options]\n" 215cd50e136ad7dc721822f5e6350769a37c216612dArgyrios Kyrtzidis" %s -[FZ] [chain] [options]\n" 216769ce3e93ad35bd9ac28e4d8b8f035ae4fd9a5b5Argyrios Kyrtzidis" %s -[NX] chain\n" 217769ce3e93ad35bd9ac28e4d8b8f035ae4fd9a5b5Argyrios Kyrtzidis" %s -E old-chain-name new-chain-name\n" 218769ce3e93ad35bd9ac28e4d8b8f035ae4fd9a5b5Argyrios Kyrtzidis" %s -P chain target [options]\n" 219769ce3e93ad35bd9ac28e4d8b8f035ae4fd9a5b5Argyrios Kyrtzidis" %s -h (print this help information)\n\n", 220312dbec867f6b8d6b86fd562c53352cd4db27468Argyrios Kyrtzidis prog_name, prog_vers, prog_name, prog_name, 221312dbec867f6b8d6b86fd562c53352cd4db27468Argyrios Kyrtzidis prog_name, prog_name, prog_name, prog_name, 222312dbec867f6b8d6b86fd562c53352cd4db27468Argyrios Kyrtzidis prog_name, prog_name, prog_name, prog_name); 223312dbec867f6b8d6b86fd562c53352cd4db27468Argyrios Kyrtzidis 224312dbec867f6b8d6b86fd562c53352cd4db27468Argyrios Kyrtzidis printf( 225312dbec867f6b8d6b86fd562c53352cd4db27468Argyrios Kyrtzidis"Commands:\n" 22630726c6baee1417307236e854f1474fdb3cedb98Argyrios Kyrtzidis"Either long or short options are allowed.\n" 22730726c6baee1417307236e854f1474fdb3cedb98Argyrios Kyrtzidis" --append -A chain Append to chain\n" 22830726c6baee1417307236e854f1474fdb3cedb98Argyrios Kyrtzidis" --check -C chain Check for the existence of a rule\n" 22930726c6baee1417307236e854f1474fdb3cedb98Argyrios Kyrtzidis" --delete -D chain Delete matching rule from chain\n" 230af5800a1e287990bb547e052f257adeeae5ab476Argyrios Kyrtzidis" --delete -D chain rulenum\n" 231af5800a1e287990bb547e052f257adeeae5ab476Argyrios Kyrtzidis" Delete rule rulenum (1 = first) from chain\n" 232af5800a1e287990bb547e052f257adeeae5ab476Argyrios Kyrtzidis" --insert -I chain [rulenum]\n" 233cc05d511b26ac6dc80fcbcc78ac305d2755aa0b9Argyrios Kyrtzidis" Insert in chain as rulenum (default 1=first)\n" 234cc05d511b26ac6dc80fcbcc78ac305d2755aa0b9Argyrios Kyrtzidis" --replace -R chain rulenum\n" 235cc05d511b26ac6dc80fcbcc78ac305d2755aa0b9Argyrios Kyrtzidis" Replace rule rulenum (1 = first) in chain\n" 236cc05d511b26ac6dc80fcbcc78ac305d2755aa0b9Argyrios Kyrtzidis" --list -L [chain [rulenum]]\n" 237183ff98f425d470c2a0276880aaf43496c9dad14Argyrios Kyrtzidis" List the rules in a chain or all chains\n" 238c41f3652f4e836cff988320bad2d6c5f416ebe1fAnna Zaks" --list-rules -S [chain [rulenum]]\n" 239c41f3652f4e836cff988320bad2d6c5f416ebe1fAnna Zaks" Print the rules in a chain or all chains\n" 240c41f3652f4e836cff988320bad2d6c5f416ebe1fAnna Zaks" --flush -F [chain] Delete all rules in chain or all chains\n" 241c41f3652f4e836cff988320bad2d6c5f416ebe1fAnna Zaks" --zero -Z [chain [rulenum]]\n" 24218c66fdc3c4008d335885695fe36fb5353c5f672Ted Kremenek" Zero counters in chain or all chains\n" 243183ff98f425d470c2a0276880aaf43496c9dad14Argyrios Kyrtzidis" --new -N chain Create a new user-defined chain\n" 244183ff98f425d470c2a0276880aaf43496c9dad14Argyrios Kyrtzidis" --delete-chain\n" 245183ff98f425d470c2a0276880aaf43496c9dad14Argyrios Kyrtzidis" -X [chain] Delete a user-defined chain\n" 246c41f3652f4e836cff988320bad2d6c5f416ebe1fAnna Zaks" --policy -P chain target\n" 247c41f3652f4e836cff988320bad2d6c5f416ebe1fAnna Zaks" Change policy on chain to target\n" 248c41f3652f4e836cff988320bad2d6c5f416ebe1fAnna Zaks" --rename-chain\n" 249c41f3652f4e836cff988320bad2d6c5f416ebe1fAnna Zaks" -E old-chain new-chain\n" 250183ff98f425d470c2a0276880aaf43496c9dad14Argyrios Kyrtzidis" Change chain name, (moving any references)\n" 251183ff98f425d470c2a0276880aaf43496c9dad14Argyrios Kyrtzidis 252183ff98f425d470c2a0276880aaf43496c9dad14Argyrios Kyrtzidis"Options:\n" 253183ff98f425d470c2a0276880aaf43496c9dad14Argyrios Kyrtzidis" --ipv4 -4 Error (line is ignored by ip6tables-restore)\n" 254183ff98f425d470c2a0276880aaf43496c9dad14Argyrios Kyrtzidis" --ipv6 -6 Nothing (line is ignored by iptables-restore)\n" 255183ff98f425d470c2a0276880aaf43496c9dad14Argyrios Kyrtzidis"[!] --proto -p proto protocol: by number or name, eg. `tcp'\n" 25618c66fdc3c4008d335885695fe36fb5353c5f672Ted Kremenek"[!] --source -s address[/mask][,...]\n" 257183ff98f425d470c2a0276880aaf43496c9dad14Argyrios Kyrtzidis" source specification\n" 258183ff98f425d470c2a0276880aaf43496c9dad14Argyrios Kyrtzidis"[!] --destination -d address[/mask][,...]\n" 259537716ad8dd10f984b6cfe6985afade1185c5e3cJordy Rose" destination specification\n" 260537716ad8dd10f984b6cfe6985afade1185c5e3cJordy Rose"[!] --in-interface -i input name[+]\n" 261537716ad8dd10f984b6cfe6985afade1185c5e3cJordy Rose" network interface name ([+] for wildcard)\n" 262537716ad8dd10f984b6cfe6985afade1185c5e3cJordy Rose" --jump -j target\n" 263537716ad8dd10f984b6cfe6985afade1185c5e3cJordy Rose" target for rule (may load target extension)\n" 264537716ad8dd10f984b6cfe6985afade1185c5e3cJordy Rose#ifdef IP6T_F_GOTO 265537716ad8dd10f984b6cfe6985afade1185c5e3cJordy Rose" --goto -g chain\n" 266537716ad8dd10f984b6cfe6985afade1185c5e3cJordy Rose" jump to chain with no return\n" 26718c66fdc3c4008d335885695fe36fb5353c5f672Ted Kremenek#endif 26818c66fdc3c4008d335885695fe36fb5353c5f672Ted Kremenek" --match -m match\n" 26935bdbf40624beba3fc00cb72ab444659939c1a6bTed Kremenek" extended match (may load extension)\n" 270537716ad8dd10f984b6cfe6985afade1185c5e3cJordy Rose" --numeric -n numeric output of addresses and ports\n" 271537716ad8dd10f984b6cfe6985afade1185c5e3cJordy Rose"[!] --out-interface -o output name[+]\n" 272183ff98f425d470c2a0276880aaf43496c9dad14Argyrios Kyrtzidis" network interface name ([+] for wildcard)\n" 273312dbec867f6b8d6b86fd562c53352cd4db27468Argyrios Kyrtzidis" --table -t table table to manipulate (default: `filter')\n" 27418c66fdc3c4008d335885695fe36fb5353c5f672Ted Kremenek" --verbose -v verbose mode\n" 275312dbec867f6b8d6b86fd562c53352cd4db27468Argyrios Kyrtzidis" --line-numbers print line numbers when listing\n" 276312dbec867f6b8d6b86fd562c53352cd4db27468Argyrios Kyrtzidis" --exact -x expand numbers (display exact values)\n" 277e1bfb7ae0dd0762c88e1fd94746e973c37f2e04eArgyrios Kyrtzidis/*"[!] --fragment -f match second or further fragments only\n"*/ 278e1bfb7ae0dd0762c88e1fd94746e973c37f2e04eArgyrios Kyrtzidis" --modprobe=<command> try to insert modules using this command\n" 279e1bfb7ae0dd0762c88e1fd94746e973c37f2e04eArgyrios Kyrtzidis" --set-counters PKTS BYTES set the counter during insert/append\n" 280e1bfb7ae0dd0762c88e1fd94746e973c37f2e04eArgyrios Kyrtzidis"[!] --version -V print package version.\n"); 281e1bfb7ae0dd0762c88e1fd94746e973c37f2e04eArgyrios Kyrtzidis 2829be6e7ce5788e50c62d40c59b0bbc2ea423683f7Ted Kremenek print_extension_helps(xtables_targets, matches); 2839be6e7ce5788e50c62d40c59b0bbc2ea423683f7Ted Kremenek exit(0); 2849c378f705405d37f49795d5e915989de774fe11fTed Kremenek} 2859be6e7ce5788e50c62d40c59b0bbc2ea423683f7Ted Kremenek 2869be6e7ce5788e50c62d40c59b0bbc2ea423683f7Ted Kremenekvoid 287e1bfb7ae0dd0762c88e1fd94746e973c37f2e04eArgyrios Kyrtzidisip6tables_exit_error(enum xtables_exittype status, const char *msg, ...) 288dbd658e139b3e0bf084f75feaea8d844af9e319fJordy Rose{ 289dbd658e139b3e0bf084f75feaea8d844af9e319fJordy Rose va_list args; 290dbd658e139b3e0bf084f75feaea8d844af9e319fJordy Rose 291dbd658e139b3e0bf084f75feaea8d844af9e319fJordy Rose va_start(args, msg); 292dbd658e139b3e0bf084f75feaea8d844af9e319fJordy Rose fprintf(stderr, "%s v%s: ", prog_name, prog_vers); 293dbd658e139b3e0bf084f75feaea8d844af9e319fJordy Rose vfprintf(stderr, msg, args); 294dbd658e139b3e0bf084f75feaea8d844af9e319fJordy Rose va_end(args); 295dbd658e139b3e0bf084f75feaea8d844af9e319fJordy Rose fprintf(stderr, "\n"); 296dbd658e139b3e0bf084f75feaea8d844af9e319fJordy Rose if (status == PARAMETER_PROBLEM) 297dbd658e139b3e0bf084f75feaea8d844af9e319fJordy Rose exit_tryhelp(status); 298dbd658e139b3e0bf084f75feaea8d844af9e319fJordy Rose if (status == VERSION_PROBLEM) 299769ce3e93ad35bd9ac28e4d8b8f035ae4fd9a5b5Argyrios Kyrtzidis fprintf(stderr, 300769ce3e93ad35bd9ac28e4d8b8f035ae4fd9a5b5Argyrios Kyrtzidis "Perhaps ip6tables or your kernel needs to be upgraded.\n"); 3019fb9474c5b267400d4abfbff63c8b39f378235d4Argyrios Kyrtzidis /* On error paths, make sure that we don't leak memory */ 3029fb9474c5b267400d4abfbff63c8b39f378235d4Argyrios Kyrtzidis xtables_free_opts(1); 3039fb9474c5b267400d4abfbff63c8b39f378235d4Argyrios Kyrtzidis exit(status); 3049fb9474c5b267400d4abfbff63c8b39f378235d4Argyrios Kyrtzidis} 3059fb9474c5b267400d4abfbff63c8b39f378235d4Argyrios Kyrtzidis 3064d840e9ac4d8e9baa9459ca3dd7ab14ae884a80fArgyrios Kyrtzidisstatic void 307769ce3e93ad35bd9ac28e4d8b8f035ae4fd9a5b5Argyrios Kyrtzidisgeneric_opt_check(int command, int options) 308769ce3e93ad35bd9ac28e4d8b8f035ae4fd9a5b5Argyrios Kyrtzidis{ 3099fb9474c5b267400d4abfbff63c8b39f378235d4Argyrios Kyrtzidis int i, j, legal = 0; 310769ce3e93ad35bd9ac28e4d8b8f035ae4fd9a5b5Argyrios Kyrtzidis 3119fb9474c5b267400d4abfbff63c8b39f378235d4Argyrios Kyrtzidis /* Check that commands are valid with options. Complicated by the 312769ce3e93ad35bd9ac28e4d8b8f035ae4fd9a5b5Argyrios Kyrtzidis * fact that if an option is legal with *any* command given, it is 313769ce3e93ad35bd9ac28e4d8b8f035ae4fd9a5b5Argyrios Kyrtzidis * legal overall (ie. -z and -l). 314769ce3e93ad35bd9ac28e4d8b8f035ae4fd9a5b5Argyrios Kyrtzidis */ 315769ce3e93ad35bd9ac28e4d8b8f035ae4fd9a5b5Argyrios Kyrtzidis for (i = 0; i < NUMBER_OF_OPT; i++) { 316769ce3e93ad35bd9ac28e4d8b8f035ae4fd9a5b5Argyrios Kyrtzidis legal = 0; /* -1 => illegal, 1 => legal, 0 => undecided. */ 317769ce3e93ad35bd9ac28e4d8b8f035ae4fd9a5b5Argyrios Kyrtzidis 3184d840e9ac4d8e9baa9459ca3dd7ab14ae884a80fArgyrios Kyrtzidis for (j = 0; j < NUMBER_OF_CMD; j++) { 3194d840e9ac4d8e9baa9459ca3dd7ab14ae884a80fArgyrios Kyrtzidis if (!(command & (1<<j))) 3204d840e9ac4d8e9baa9459ca3dd7ab14ae884a80fArgyrios Kyrtzidis continue; 3214d840e9ac4d8e9baa9459ca3dd7ab14ae884a80fArgyrios Kyrtzidis 3224d840e9ac4d8e9baa9459ca3dd7ab14ae884a80fArgyrios Kyrtzidis if (!(options & (1<<i))) { 3234d840e9ac4d8e9baa9459ca3dd7ab14ae884a80fArgyrios Kyrtzidis if (commands_v_options[j][i] == '+') 324769ce3e93ad35bd9ac28e4d8b8f035ae4fd9a5b5Argyrios Kyrtzidis xtables_error(PARAMETER_PROBLEM, 3254d840e9ac4d8e9baa9459ca3dd7ab14ae884a80fArgyrios Kyrtzidis "You need to supply the `-%c' " 3264d840e9ac4d8e9baa9459ca3dd7ab14ae884a80fArgyrios Kyrtzidis "option for this command\n", 3274d840e9ac4d8e9baa9459ca3dd7ab14ae884a80fArgyrios Kyrtzidis optflags[i]); 3284d840e9ac4d8e9baa9459ca3dd7ab14ae884a80fArgyrios Kyrtzidis } else { 3294d840e9ac4d8e9baa9459ca3dd7ab14ae884a80fArgyrios Kyrtzidis if (commands_v_options[j][i] != 'x') 33030726c6baee1417307236e854f1474fdb3cedb98Argyrios Kyrtzidis legal = 1; 3314d840e9ac4d8e9baa9459ca3dd7ab14ae884a80fArgyrios Kyrtzidis else if (legal == 0) 3324d840e9ac4d8e9baa9459ca3dd7ab14ae884a80fArgyrios Kyrtzidis legal = -1; 3334d840e9ac4d8e9baa9459ca3dd7ab14ae884a80fArgyrios Kyrtzidis } 3344d840e9ac4d8e9baa9459ca3dd7ab14ae884a80fArgyrios Kyrtzidis } 3354d840e9ac4d8e9baa9459ca3dd7ab14ae884a80fArgyrios Kyrtzidis if (legal == -1) 336cc05d511b26ac6dc80fcbcc78ac305d2755aa0b9Argyrios Kyrtzidis xtables_error(PARAMETER_PROBLEM, 3374d840e9ac4d8e9baa9459ca3dd7ab14ae884a80fArgyrios Kyrtzidis "Illegal option `-%c' with this command\n", 3384d840e9ac4d8e9baa9459ca3dd7ab14ae884a80fArgyrios Kyrtzidis optflags[i]); 3394d840e9ac4d8e9baa9459ca3dd7ab14ae884a80fArgyrios Kyrtzidis } 3404d840e9ac4d8e9baa9459ca3dd7ab14ae884a80fArgyrios Kyrtzidis} 34118c66fdc3c4008d335885695fe36fb5353c5f672Ted Kremenek 3424d840e9ac4d8e9baa9459ca3dd7ab14ae884a80fArgyrios Kyrtzidisstatic char 34318c66fdc3c4008d335885695fe36fb5353c5f672Ted Kremenekopt2char(int option) 34435bdbf40624beba3fc00cb72ab444659939c1a6bTed Kremenek{ 345537716ad8dd10f984b6cfe6985afade1185c5e3cJordy Rose const char *ptr; 346537716ad8dd10f984b6cfe6985afade1185c5e3cJordy Rose for (ptr = optflags; option > 1; option >>= 1, ptr++); 3474d840e9ac4d8e9baa9459ca3dd7ab14ae884a80fArgyrios Kyrtzidis 3484d840e9ac4d8e9baa9459ca3dd7ab14ae884a80fArgyrios Kyrtzidis return *ptr; 34918c66fdc3c4008d335885695fe36fb5353c5f672Ted Kremenek} 3504d840e9ac4d8e9baa9459ca3dd7ab14ae884a80fArgyrios Kyrtzidis 35118c66fdc3c4008d335885695fe36fb5353c5f672Ted Kremenekstatic char 35218c66fdc3c4008d335885695fe36fb5353c5f672Ted Kremenekcmd2char(int option) 3534d840e9ac4d8e9baa9459ca3dd7ab14ae884a80fArgyrios Kyrtzidis{ 3544d840e9ac4d8e9baa9459ca3dd7ab14ae884a80fArgyrios Kyrtzidis const char *ptr; 3554d840e9ac4d8e9baa9459ca3dd7ab14ae884a80fArgyrios Kyrtzidis for (ptr = cmdflags; option > 1; option >>= 1, ptr++); 3564d840e9ac4d8e9baa9459ca3dd7ab14ae884a80fArgyrios Kyrtzidis 357769ce3e93ad35bd9ac28e4d8b8f035ae4fd9a5b5Argyrios Kyrtzidis return *ptr; 3589be6e7ce5788e50c62d40c59b0bbc2ea423683f7Ted Kremenek} 3599be6e7ce5788e50c62d40c59b0bbc2ea423683f7Ted Kremenek 3609be6e7ce5788e50c62d40c59b0bbc2ea423683f7Ted Kremenekstatic void 3619be6e7ce5788e50c62d40c59b0bbc2ea423683f7Ted Kremenekadd_command(unsigned int *cmd, const int newcmd, const int othercmds, 362769ce3e93ad35bd9ac28e4d8b8f035ae4fd9a5b5Argyrios Kyrtzidis int invert) 363769ce3e93ad35bd9ac28e4d8b8f035ae4fd9a5b5Argyrios Kyrtzidis{ 364769ce3e93ad35bd9ac28e4d8b8f035ae4fd9a5b5Argyrios Kyrtzidis if (invert) 365769ce3e93ad35bd9ac28e4d8b8f035ae4fd9a5b5Argyrios Kyrtzidis xtables_error(PARAMETER_PROBLEM, "unexpected '!' flag"); 366769ce3e93ad35bd9ac28e4d8b8f035ae4fd9a5b5Argyrios Kyrtzidis if (*cmd & (~othercmds)) 367769ce3e93ad35bd9ac28e4d8b8f035ae4fd9a5b5Argyrios Kyrtzidis xtables_error(PARAMETER_PROBLEM, "Cannot use -%c with -%c\n", 368769ce3e93ad35bd9ac28e4d8b8f035ae4fd9a5b5Argyrios Kyrtzidis cmd2char(newcmd), cmd2char(*cmd & (~othercmds))); 369769ce3e93ad35bd9ac28e4d8b8f035ae4fd9a5b5Argyrios Kyrtzidis *cmd |= newcmd; 370769ce3e93ad35bd9ac28e4d8b8f035ae4fd9a5b5Argyrios Kyrtzidis} 371769ce3e93ad35bd9ac28e4d8b8f035ae4fd9a5b5Argyrios Kyrtzidis 372769ce3e93ad35bd9ac28e4d8b8f035ae4fd9a5b5Argyrios Kyrtzidis/* 373312dbec867f6b8d6b86fd562c53352cd4db27468Argyrios Kyrtzidis * All functions starting with "parse" should succeed, otherwise 374312dbec867f6b8d6b86fd562c53352cd4db27468Argyrios Kyrtzidis * the program fails. 37530726c6baee1417307236e854f1474fdb3cedb98Argyrios Kyrtzidis * Most routines return pointers to static data that may change 37630726c6baee1417307236e854f1474fdb3cedb98Argyrios Kyrtzidis * between calls to the same or other routines with a few exceptions: 377af5800a1e287990bb547e052f257adeeae5ab476Argyrios Kyrtzidis * "host_to_addr", "parse_hostnetwork", and "parse_hostnetworkmask" 378af5800a1e287990bb547e052f257adeeae5ab476Argyrios Kyrtzidis * return global static data. 379cc05d511b26ac6dc80fcbcc78ac305d2755aa0b9Argyrios Kyrtzidis*/ 380cc05d511b26ac6dc80fcbcc78ac305d2755aa0b9Argyrios Kyrtzidis 381183ff98f425d470c2a0276880aaf43496c9dad14Argyrios Kyrtzidis/* These are invalid numbers as upper layer protocol */ 382183ff98f425d470c2a0276880aaf43496c9dad14Argyrios Kyrtzidisstatic int is_exthdr(uint16_t proto) 383183ff98f425d470c2a0276880aaf43496c9dad14Argyrios Kyrtzidis{ 384183ff98f425d470c2a0276880aaf43496c9dad14Argyrios Kyrtzidis return (proto == IPPROTO_ROUTING || 385183ff98f425d470c2a0276880aaf43496c9dad14Argyrios Kyrtzidis proto == IPPROTO_FRAGMENT || 386183ff98f425d470c2a0276880aaf43496c9dad14Argyrios Kyrtzidis proto == IPPROTO_AH || 387183ff98f425d470c2a0276880aaf43496c9dad14Argyrios Kyrtzidis proto == IPPROTO_DSTOPTS); 388312dbec867f6b8d6b86fd562c53352cd4db27468Argyrios Kyrtzidis} 389312dbec867f6b8d6b86fd562c53352cd4db27468Argyrios Kyrtzidis 390e1bfb7ae0dd0762c88e1fd94746e973c37f2e04eArgyrios Kyrtzidis/* Can't be zero. */ 391e1bfb7ae0dd0762c88e1fd94746e973c37f2e04eArgyrios Kyrtzidisstatic int 3929be6e7ce5788e50c62d40c59b0bbc2ea423683f7Ted Kremenekparse_rulenumber(const char *rule) 3939be6e7ce5788e50c62d40c59b0bbc2ea423683f7Ted Kremenek{ 394769ce3e93ad35bd9ac28e4d8b8f035ae4fd9a5b5Argyrios Kyrtzidis unsigned int rulenum; 395deb6447d0029bdb122397fafb5fa2a4e76f2e555Argyrios Kyrtzidis 396deb6447d0029bdb122397fafb5fa2a4e76f2e555Argyrios Kyrtzidis if (!xtables_strtoui(rule, NULL, &rulenum, 1, INT_MAX)) 397deb6447d0029bdb122397fafb5fa2a4e76f2e555Argyrios Kyrtzidis xtables_error(PARAMETER_PROBLEM, 398deb6447d0029bdb122397fafb5fa2a4e76f2e555Argyrios Kyrtzidis "Invalid rule number `%s'", rule); 3994d840e9ac4d8e9baa9459ca3dd7ab14ae884a80fArgyrios Kyrtzidis 400deb6447d0029bdb122397fafb5fa2a4e76f2e555Argyrios Kyrtzidis return rulenum; 401deb6447d0029bdb122397fafb5fa2a4e76f2e555Argyrios Kyrtzidis} 402deb6447d0029bdb122397fafb5fa2a4e76f2e555Argyrios Kyrtzidis 403deb6447d0029bdb122397fafb5fa2a4e76f2e555Argyrios Kyrtzidisstatic const char * 404deb6447d0029bdb122397fafb5fa2a4e76f2e555Argyrios Kyrtzidisparse_target(const char *targetname) 405deb6447d0029bdb122397fafb5fa2a4e76f2e555Argyrios Kyrtzidis{ 406deb6447d0029bdb122397fafb5fa2a4e76f2e555Argyrios Kyrtzidis const char *ptr; 407deb6447d0029bdb122397fafb5fa2a4e76f2e555Argyrios Kyrtzidis 408deb6447d0029bdb122397fafb5fa2a4e76f2e555Argyrios Kyrtzidis if (strlen(targetname) < 1) 409deb6447d0029bdb122397fafb5fa2a4e76f2e555Argyrios Kyrtzidis xtables_error(PARAMETER_PROBLEM, 410deb6447d0029bdb122397fafb5fa2a4e76f2e555Argyrios Kyrtzidis "Invalid target name (too short)"); 411deb6447d0029bdb122397fafb5fa2a4e76f2e555Argyrios Kyrtzidis 412deb6447d0029bdb122397fafb5fa2a4e76f2e555Argyrios Kyrtzidis if (strlen(targetname) >= XT_EXTENSION_MAXNAMELEN) 413deb6447d0029bdb122397fafb5fa2a4e76f2e555Argyrios Kyrtzidis xtables_error(PARAMETER_PROBLEM, 414deb6447d0029bdb122397fafb5fa2a4e76f2e555Argyrios Kyrtzidis "Invalid target name `%s' (%u chars max)", 415deb6447d0029bdb122397fafb5fa2a4e76f2e555Argyrios Kyrtzidis targetname, XT_EXTENSION_MAXNAMELEN - 1); 416deb6447d0029bdb122397fafb5fa2a4e76f2e555Argyrios Kyrtzidis 417deb6447d0029bdb122397fafb5fa2a4e76f2e555Argyrios Kyrtzidis for (ptr = targetname; *ptr; ptr++) 418deb6447d0029bdb122397fafb5fa2a4e76f2e555Argyrios Kyrtzidis if (isspace(*ptr)) 419deb6447d0029bdb122397fafb5fa2a4e76f2e555Argyrios Kyrtzidis xtables_error(PARAMETER_PROBLEM, 420deb6447d0029bdb122397fafb5fa2a4e76f2e555Argyrios Kyrtzidis "Invalid target name `%s'", targetname); 421deb6447d0029bdb122397fafb5fa2a4e76f2e555Argyrios Kyrtzidis return targetname; 422deb6447d0029bdb122397fafb5fa2a4e76f2e555Argyrios Kyrtzidis} 423deb6447d0029bdb122397fafb5fa2a4e76f2e555Argyrios Kyrtzidis 424769ce3e93ad35bd9ac28e4d8b8f035ae4fd9a5b5Argyrios Kyrtzidisstatic void 425769ce3e93ad35bd9ac28e4d8b8f035ae4fd9a5b5Argyrios Kyrtzidisset_option(unsigned int *options, unsigned int option, uint8_t *invflg, 42643dee220252ef0b42c5f8a3bb1eca97f84f2565fArgyrios Kyrtzidis int invert) 42743dee220252ef0b42c5f8a3bb1eca97f84f2565fArgyrios Kyrtzidis{ 4289fb9474c5b267400d4abfbff63c8b39f378235d4Argyrios Kyrtzidis if (*options & option) 4299fb9474c5b267400d4abfbff63c8b39f378235d4Argyrios Kyrtzidis xtables_error(PARAMETER_PROBLEM, "multiple -%c flags not allowed", 4309fb9474c5b267400d4abfbff63c8b39f378235d4Argyrios Kyrtzidis opt2char(option)); 431deb6447d0029bdb122397fafb5fa2a4e76f2e555Argyrios Kyrtzidis *options |= option; 432deb6447d0029bdb122397fafb5fa2a4e76f2e555Argyrios Kyrtzidis 4333fe71f445f76003649b5da24209e80225a7ee74fArgyrios Kyrtzidis if (invert) { 4343fe71f445f76003649b5da24209e80225a7ee74fArgyrios Kyrtzidis unsigned int i; 4353fe71f445f76003649b5da24209e80225a7ee74fArgyrios Kyrtzidis for (i = 0; 1 << i != option; i++); 436769ce3e93ad35bd9ac28e4d8b8f035ae4fd9a5b5Argyrios Kyrtzidis 437769ce3e93ad35bd9ac28e4d8b8f035ae4fd9a5b5Argyrios Kyrtzidis if (!inverse_for_options[i]) 4389fb9474c5b267400d4abfbff63c8b39f378235d4Argyrios Kyrtzidis xtables_error(PARAMETER_PROBLEM, 4399fb9474c5b267400d4abfbff63c8b39f378235d4Argyrios Kyrtzidis "cannot have ! before -%c", 4409fb9474c5b267400d4abfbff63c8b39f378235d4Argyrios Kyrtzidis opt2char(option)); 4419fb9474c5b267400d4abfbff63c8b39f378235d4Argyrios Kyrtzidis *invflg |= inverse_for_options[i]; 4429fb9474c5b267400d4abfbff63c8b39f378235d4Argyrios Kyrtzidis } 4439fb9474c5b267400d4abfbff63c8b39f378235d4Argyrios Kyrtzidis} 444769ce3e93ad35bd9ac28e4d8b8f035ae4fd9a5b5Argyrios Kyrtzidis 4459fb9474c5b267400d4abfbff63c8b39f378235d4Argyrios Kyrtzidisstatic void 446686775deca8b8685eb90801495880e3abdd844c2Chris Lattnerprint_num(uint64_t number, unsigned int format) 4479fb9474c5b267400d4abfbff63c8b39f378235d4Argyrios Kyrtzidis{ 4489fb9474c5b267400d4abfbff63c8b39f378235d4Argyrios Kyrtzidis if (format & FMT_KILOMEGAGIGA) { 449769ce3e93ad35bd9ac28e4d8b8f035ae4fd9a5b5Argyrios Kyrtzidis if (number > 99999) { 450769ce3e93ad35bd9ac28e4d8b8f035ae4fd9a5b5Argyrios Kyrtzidis number = (number + 500) / 1000; 451769ce3e93ad35bd9ac28e4d8b8f035ae4fd9a5b5Argyrios Kyrtzidis if (number > 9999) { 452769ce3e93ad35bd9ac28e4d8b8f035ae4fd9a5b5Argyrios Kyrtzidis number = (number + 500) / 1000; 453769ce3e93ad35bd9ac28e4d8b8f035ae4fd9a5b5Argyrios Kyrtzidis if (number > 9999) { 454769ce3e93ad35bd9ac28e4d8b8f035ae4fd9a5b5Argyrios Kyrtzidis number = (number + 500) / 1000; 455769ce3e93ad35bd9ac28e4d8b8f035ae4fd9a5b5Argyrios Kyrtzidis if (number > 9999) { 456769ce3e93ad35bd9ac28e4d8b8f035ae4fd9a5b5Argyrios Kyrtzidis number = (number + 500) / 1000; 457769ce3e93ad35bd9ac28e4d8b8f035ae4fd9a5b5Argyrios Kyrtzidis printf(FMT("%4lluT ","%lluT "), (unsigned long long)number); 458769ce3e93ad35bd9ac28e4d8b8f035ae4fd9a5b5Argyrios Kyrtzidis } 459769ce3e93ad35bd9ac28e4d8b8f035ae4fd9a5b5Argyrios Kyrtzidis else printf(FMT("%4lluG ","%lluG "), (unsigned long long)number); 460769ce3e93ad35bd9ac28e4d8b8f035ae4fd9a5b5Argyrios Kyrtzidis } 461769ce3e93ad35bd9ac28e4d8b8f035ae4fd9a5b5Argyrios Kyrtzidis else printf(FMT("%4lluM ","%lluM "), (unsigned long long)number); 462769ce3e93ad35bd9ac28e4d8b8f035ae4fd9a5b5Argyrios Kyrtzidis } else 463769ce3e93ad35bd9ac28e4d8b8f035ae4fd9a5b5Argyrios Kyrtzidis printf(FMT("%4lluK ","%lluK "), (unsigned long long)number); 464769ce3e93ad35bd9ac28e4d8b8f035ae4fd9a5b5Argyrios Kyrtzidis } else 465769ce3e93ad35bd9ac28e4d8b8f035ae4fd9a5b5Argyrios Kyrtzidis printf(FMT("%5llu ","%llu "), (unsigned long long)number); 466fc26107870e0e450d863541179234bf9063a4da7Argyrios Kyrtzidis } else 467769ce3e93ad35bd9ac28e4d8b8f035ae4fd9a5b5Argyrios Kyrtzidis printf(FMT("%8llu ","%llu "), (unsigned long long)number); 468769ce3e93ad35bd9ac28e4d8b8f035ae4fd9a5b5Argyrios Kyrtzidis} 469769ce3e93ad35bd9ac28e4d8b8f035ae4fd9a5b5Argyrios Kyrtzidis 470769ce3e93ad35bd9ac28e4d8b8f035ae4fd9a5b5Argyrios Kyrtzidis 471769ce3e93ad35bd9ac28e4d8b8f035ae4fd9a5b5Argyrios Kyrtzidisstatic void 472769ce3e93ad35bd9ac28e4d8b8f035ae4fd9a5b5Argyrios Kyrtzidisprint_header(unsigned int format, const char *chain, struct xtc_handle *handle) 473769ce3e93ad35bd9ac28e4d8b8f035ae4fd9a5b5Argyrios Kyrtzidis{ 474769ce3e93ad35bd9ac28e4d8b8f035ae4fd9a5b5Argyrios Kyrtzidis struct ip6t_counters counters; 475769ce3e93ad35bd9ac28e4d8b8f035ae4fd9a5b5Argyrios Kyrtzidis const char *pol = ip6tc_get_policy(chain, &counters, handle); 476769ce3e93ad35bd9ac28e4d8b8f035ae4fd9a5b5Argyrios Kyrtzidis printf("Chain %s", chain); 477769ce3e93ad35bd9ac28e4d8b8f035ae4fd9a5b5Argyrios Kyrtzidis if (pol) { 478769ce3e93ad35bd9ac28e4d8b8f035ae4fd9a5b5Argyrios Kyrtzidis printf(" (policy %s", pol); 479769ce3e93ad35bd9ac28e4d8b8f035ae4fd9a5b5Argyrios Kyrtzidis if (!(format & FMT_NOCOUNTS)) { 480686775deca8b8685eb90801495880e3abdd844c2Chris Lattner fputc(' ', stdout); 481769ce3e93ad35bd9ac28e4d8b8f035ae4fd9a5b5Argyrios Kyrtzidis print_num(counters.pcnt, (format|FMT_NOTABLE)); 482769ce3e93ad35bd9ac28e4d8b8f035ae4fd9a5b5Argyrios Kyrtzidis fputs("packets, ", stdout); 483769ce3e93ad35bd9ac28e4d8b8f035ae4fd9a5b5Argyrios Kyrtzidis print_num(counters.bcnt, (format|FMT_NOTABLE)); 484769ce3e93ad35bd9ac28e4d8b8f035ae4fd9a5b5Argyrios Kyrtzidis fputs("bytes", stdout); 485769ce3e93ad35bd9ac28e4d8b8f035ae4fd9a5b5Argyrios Kyrtzidis } 486769ce3e93ad35bd9ac28e4d8b8f035ae4fd9a5b5Argyrios Kyrtzidis printf(")\n"); 487769ce3e93ad35bd9ac28e4d8b8f035ae4fd9a5b5Argyrios Kyrtzidis } else { 488769ce3e93ad35bd9ac28e4d8b8f035ae4fd9a5b5Argyrios Kyrtzidis unsigned int refs; 489769ce3e93ad35bd9ac28e4d8b8f035ae4fd9a5b5Argyrios Kyrtzidis if (!ip6tc_get_references(&refs, chain, handle)) 490769ce3e93ad35bd9ac28e4d8b8f035ae4fd9a5b5Argyrios Kyrtzidis printf(" (ERROR obtaining refs)\n"); 49130726c6baee1417307236e854f1474fdb3cedb98Argyrios Kyrtzidis else 492312dbec867f6b8d6b86fd562c53352cd4db27468Argyrios Kyrtzidis printf(" (%u references)\n", refs); 493312dbec867f6b8d6b86fd562c53352cd4db27468Argyrios Kyrtzidis } 49430726c6baee1417307236e854f1474fdb3cedb98Argyrios Kyrtzidis 495e1bfb7ae0dd0762c88e1fd94746e973c37f2e04eArgyrios Kyrtzidis if (format & FMT_LINENUMBERS) 496af5800a1e287990bb547e052f257adeeae5ab476Argyrios Kyrtzidis printf(FMT("%-4s ", "%s "), "num"); 497af5800a1e287990bb547e052f257adeeae5ab476Argyrios Kyrtzidis if (!(format & FMT_NOCOUNTS)) { 498cc05d511b26ac6dc80fcbcc78ac305d2755aa0b9Argyrios Kyrtzidis if (format & FMT_KILOMEGAGIGA) { 499cc05d511b26ac6dc80fcbcc78ac305d2755aa0b9Argyrios Kyrtzidis printf(FMT("%5s ","%s "), "pkts"); 500183ff98f425d470c2a0276880aaf43496c9dad14Argyrios Kyrtzidis printf(FMT("%5s ","%s "), "bytes"); 501183ff98f425d470c2a0276880aaf43496c9dad14Argyrios Kyrtzidis } else { 502183ff98f425d470c2a0276880aaf43496c9dad14Argyrios Kyrtzidis printf(FMT("%8s ","%s "), "pkts"); 503183ff98f425d470c2a0276880aaf43496c9dad14Argyrios Kyrtzidis printf(FMT("%10s ","%s "), "bytes"); 504183ff98f425d470c2a0276880aaf43496c9dad14Argyrios Kyrtzidis } 505183ff98f425d470c2a0276880aaf43496c9dad14Argyrios Kyrtzidis } 506183ff98f425d470c2a0276880aaf43496c9dad14Argyrios Kyrtzidis if (!(format & FMT_NOTARGET)) 507183ff98f425d470c2a0276880aaf43496c9dad14Argyrios Kyrtzidis printf(FMT("%-9s ","%s "), "target"); 508183ff98f425d470c2a0276880aaf43496c9dad14Argyrios Kyrtzidis fputs(" prot ", stdout); 509183ff98f425d470c2a0276880aaf43496c9dad14Argyrios Kyrtzidis if (format & FMT_OPTIONS) 510312dbec867f6b8d6b86fd562c53352cd4db27468Argyrios Kyrtzidis fputs("opt", stdout); 511312dbec867f6b8d6b86fd562c53352cd4db27468Argyrios Kyrtzidis if (format & FMT_VIA) { 512e1bfb7ae0dd0762c88e1fd94746e973c37f2e04eArgyrios Kyrtzidis printf(FMT(" %-6s ","%s "), "in"); 513deb6447d0029bdb122397fafb5fa2a4e76f2e555Argyrios Kyrtzidis printf(FMT("%-6s ","%s "), "out"); 5149be6e7ce5788e50c62d40c59b0bbc2ea423683f7Ted Kremenek } 5159be6e7ce5788e50c62d40c59b0bbc2ea423683f7Ted Kremenek printf(FMT(" %-19s ","%s "), "source"); 516deb6447d0029bdb122397fafb5fa2a4e76f2e555Argyrios Kyrtzidis printf(FMT(" %-19s "," %s "), "destination"); 517686775deca8b8685eb90801495880e3abdd844c2Chris Lattner printf("\n"); 518deb6447d0029bdb122397fafb5fa2a4e76f2e555Argyrios Kyrtzidis} 519deb6447d0029bdb122397fafb5fa2a4e76f2e555Argyrios Kyrtzidis 520deb6447d0029bdb122397fafb5fa2a4e76f2e555Argyrios Kyrtzidis 521deb6447d0029bdb122397fafb5fa2a4e76f2e555Argyrios Kyrtzidisstatic int 522deb6447d0029bdb122397fafb5fa2a4e76f2e555Argyrios Kyrtzidisprint_match(const struct ip6t_entry_match *m, 523deb6447d0029bdb122397fafb5fa2a4e76f2e555Argyrios Kyrtzidis const struct ip6t_ip6 *ip, 52443dee220252ef0b42c5f8a3bb1eca97f84f2565fArgyrios Kyrtzidis int numeric) 52543dee220252ef0b42c5f8a3bb1eca97f84f2565fArgyrios Kyrtzidis{ 52643dee220252ef0b42c5f8a3bb1eca97f84f2565fArgyrios Kyrtzidis const struct xtables_match *match = 52743dee220252ef0b42c5f8a3bb1eca97f84f2565fArgyrios Kyrtzidis xtables_find_match(m->u.user.name, XTF_TRY_LOAD, NULL); 52843dee220252ef0b42c5f8a3bb1eca97f84f2565fArgyrios Kyrtzidis 52943dee220252ef0b42c5f8a3bb1eca97f84f2565fArgyrios Kyrtzidis if (match) { 530769ce3e93ad35bd9ac28e4d8b8f035ae4fd9a5b5Argyrios Kyrtzidis if (match->print) 531769ce3e93ad35bd9ac28e4d8b8f035ae4fd9a5b5Argyrios Kyrtzidis match->print(ip, m, numeric); 532769ce3e93ad35bd9ac28e4d8b8f035ae4fd9a5b5Argyrios Kyrtzidis else 533769ce3e93ad35bd9ac28e4d8b8f035ae4fd9a5b5Argyrios Kyrtzidis printf("%s ", match->name); 534769ce3e93ad35bd9ac28e4d8b8f035ae4fd9a5b5Argyrios Kyrtzidis } else { 535769ce3e93ad35bd9ac28e4d8b8f035ae4fd9a5b5Argyrios Kyrtzidis if (m->u.user.name[0]) 536769ce3e93ad35bd9ac28e4d8b8f035ae4fd9a5b5Argyrios Kyrtzidis printf("UNKNOWN match `%s' ", m->u.user.name); 537769ce3e93ad35bd9ac28e4d8b8f035ae4fd9a5b5Argyrios Kyrtzidis } 538769ce3e93ad35bd9ac28e4d8b8f035ae4fd9a5b5Argyrios Kyrtzidis /* Don't stop iterating. */ 539769ce3e93ad35bd9ac28e4d8b8f035ae4fd9a5b5Argyrios Kyrtzidis return 0; 540769ce3e93ad35bd9ac28e4d8b8f035ae4fd9a5b5Argyrios Kyrtzidis} 541769ce3e93ad35bd9ac28e4d8b8f035ae4fd9a5b5Argyrios Kyrtzidis 542769ce3e93ad35bd9ac28e4d8b8f035ae4fd9a5b5Argyrios Kyrtzidis/* e is called `fw' here for historical reasons */ 543769ce3e93ad35bd9ac28e4d8b8f035ae4fd9a5b5Argyrios Kyrtzidisstatic void 544769ce3e93ad35bd9ac28e4d8b8f035ae4fd9a5b5Argyrios Kyrtzidisprint_firewall(const struct ip6t_entry *fw, 545769ce3e93ad35bd9ac28e4d8b8f035ae4fd9a5b5Argyrios Kyrtzidis const char *targname, 546769ce3e93ad35bd9ac28e4d8b8f035ae4fd9a5b5Argyrios Kyrtzidis unsigned int num, 547769ce3e93ad35bd9ac28e4d8b8f035ae4fd9a5b5Argyrios Kyrtzidis unsigned int format, 548769ce3e93ad35bd9ac28e4d8b8f035ae4fd9a5b5Argyrios Kyrtzidis struct xtc_handle *const handle) 549769ce3e93ad35bd9ac28e4d8b8f035ae4fd9a5b5Argyrios Kyrtzidis{ 550769ce3e93ad35bd9ac28e4d8b8f035ae4fd9a5b5Argyrios Kyrtzidis const struct xtables_target *target = NULL; 551769ce3e93ad35bd9ac28e4d8b8f035ae4fd9a5b5Argyrios Kyrtzidis const struct ip6t_entry_target *t; 552769ce3e93ad35bd9ac28e4d8b8f035ae4fd9a5b5Argyrios Kyrtzidis char buf[BUFSIZ]; 553769ce3e93ad35bd9ac28e4d8b8f035ae4fd9a5b5Argyrios Kyrtzidis 554769ce3e93ad35bd9ac28e4d8b8f035ae4fd9a5b5Argyrios Kyrtzidis if (!ip6tc_is_chain(targname, handle)) 555769ce3e93ad35bd9ac28e4d8b8f035ae4fd9a5b5Argyrios Kyrtzidis target = xtables_find_target(targname, XTF_TRY_LOAD); 55643dee220252ef0b42c5f8a3bb1eca97f84f2565fArgyrios Kyrtzidis else 557 target = xtables_find_target(IP6T_STANDARD_TARGET, 558 XTF_LOAD_MUST_SUCCEED); 559 560 t = ip6t_get_target((struct ip6t_entry *)fw); 561 562 if (format & FMT_LINENUMBERS) 563 printf(FMT("%-4u ", "%u "), num); 564 565 if (!(format & FMT_NOCOUNTS)) { 566 print_num(fw->counters.pcnt, format); 567 print_num(fw->counters.bcnt, format); 568 } 569 570 if (!(format & FMT_NOTARGET)) 571 printf(FMT("%-9s ", "%s "), targname); 572 573 fputc(fw->ipv6.invflags & IP6T_INV_PROTO ? '!' : ' ', stdout); 574 { 575 const char *pname = proto_to_name(fw->ipv6.proto, format&FMT_NUMERIC); 576 if (pname) 577 printf(FMT("%-5s", "%s "), pname); 578 else 579 printf(FMT("%-5hu", "%hu "), fw->ipv6.proto); 580 } 581 582 if (format & FMT_OPTIONS) { 583 if (format & FMT_NOTABLE) 584 fputs("opt ", stdout); 585 fputc(' ', stdout); /* Invert flag of FRAG */ 586 fputc(' ', stdout); /* -f */ 587 fputc(' ', stdout); 588 } 589 590 if (format & FMT_VIA) { 591 char iface[IFNAMSIZ+2]; 592 593 if (fw->ipv6.invflags & IP6T_INV_VIA_IN) { 594 iface[0] = '!'; 595 iface[1] = '\0'; 596 } 597 else iface[0] = '\0'; 598 599 if (fw->ipv6.iniface[0] != '\0') { 600 strcat(iface, fw->ipv6.iniface); 601 } 602 else if (format & FMT_NUMERIC) strcat(iface, "*"); 603 else strcat(iface, "any"); 604 printf(FMT(" %-6s ","in %s "), iface); 605 606 if (fw->ipv6.invflags & IP6T_INV_VIA_OUT) { 607 iface[0] = '!'; 608 iface[1] = '\0'; 609 } 610 else iface[0] = '\0'; 611 612 if (fw->ipv6.outiface[0] != '\0') { 613 strcat(iface, fw->ipv6.outiface); 614 } 615 else if (format & FMT_NUMERIC) strcat(iface, "*"); 616 else strcat(iface, "any"); 617 printf(FMT("%-6s ","out %s "), iface); 618 } 619 620 fputc(fw->ipv6.invflags & IP6T_INV_SRCIP ? '!' : ' ', stdout); 621 if (!memcmp(&fw->ipv6.smsk, &in6addr_any, sizeof in6addr_any) 622 && !(format & FMT_NUMERIC)) 623 printf(FMT("%-19s ","%s "), "anywhere"); 624 else { 625 if (format & FMT_NUMERIC) 626 strcpy(buf, xtables_ip6addr_to_numeric(&fw->ipv6.src)); 627 else 628 strcpy(buf, xtables_ip6addr_to_anyname(&fw->ipv6.src)); 629 strcat(buf, xtables_ip6mask_to_numeric(&fw->ipv6.smsk)); 630 printf(FMT("%-19s ","%s "), buf); 631 } 632 633 fputc(fw->ipv6.invflags & IP6T_INV_DSTIP ? '!' : ' ', stdout); 634 if (!memcmp(&fw->ipv6.dmsk, &in6addr_any, sizeof in6addr_any) 635 && !(format & FMT_NUMERIC)) 636 printf(FMT("%-19s ","-> %s"), "anywhere"); 637 else { 638 if (format & FMT_NUMERIC) 639 strcpy(buf, xtables_ip6addr_to_numeric(&fw->ipv6.dst)); 640 else 641 strcpy(buf, xtables_ip6addr_to_anyname(&fw->ipv6.dst)); 642 strcat(buf, xtables_ip6mask_to_numeric(&fw->ipv6.dmsk)); 643 printf(FMT("%-19s ","-> %s"), buf); 644 } 645 646 if (format & FMT_NOTABLE) 647 fputs(" ", stdout); 648 649#ifdef IP6T_F_GOTO 650 if(fw->ipv6.flags & IP6T_F_GOTO) 651 printf("[goto] "); 652#endif 653 654 IP6T_MATCH_ITERATE(fw, print_match, &fw->ipv6, format & FMT_NUMERIC); 655 656 if (target) { 657 if (target->print) 658 /* Print the target information. */ 659 target->print(&fw->ipv6, t, format & FMT_NUMERIC); 660 } else if (t->u.target_size != sizeof(*t)) 661 printf("[%u bytes of unknown target data] ", 662 (unsigned int)(t->u.target_size - sizeof(*t))); 663 664 if (!(format & FMT_NONEWLINE)) 665 fputc('\n', stdout); 666} 667 668static void 669print_firewall_line(const struct ip6t_entry *fw, 670 struct xtc_handle *const h) 671{ 672 struct ip6t_entry_target *t; 673 674 t = ip6t_get_target((struct ip6t_entry *)fw); 675 print_firewall(fw, t->u.user.name, 0, FMT_PRINT_RULE, h); 676} 677 678static int 679append_entry(const xt_chainlabel chain, 680 struct ip6t_entry *fw, 681 unsigned int nsaddrs, 682 const struct in6_addr saddrs[], 683 const struct in6_addr smasks[], 684 unsigned int ndaddrs, 685 const struct in6_addr daddrs[], 686 const struct in6_addr dmasks[], 687 int verbose, 688 struct xtc_handle *handle) 689{ 690 unsigned int i, j; 691 int ret = 1; 692 693 for (i = 0; i < nsaddrs; i++) { 694 fw->ipv6.src = saddrs[i]; 695 fw->ipv6.smsk = smasks[i]; 696 for (j = 0; j < ndaddrs; j++) { 697 fw->ipv6.dst = daddrs[j]; 698 fw->ipv6.dmsk = dmasks[j]; 699 if (verbose) 700 print_firewall_line(fw, handle); 701 ret &= ip6tc_append_entry(chain, fw, handle); 702 } 703 } 704 705 return ret; 706} 707 708static int 709replace_entry(const xt_chainlabel chain, 710 struct ip6t_entry *fw, 711 unsigned int rulenum, 712 const struct in6_addr *saddr, const struct in6_addr *smask, 713 const struct in6_addr *daddr, const struct in6_addr *dmask, 714 int verbose, 715 struct xtc_handle *handle) 716{ 717 fw->ipv6.src = *saddr; 718 fw->ipv6.dst = *daddr; 719 fw->ipv6.smsk = *smask; 720 fw->ipv6.dmsk = *dmask; 721 722 if (verbose) 723 print_firewall_line(fw, handle); 724 return ip6tc_replace_entry(chain, fw, rulenum, handle); 725} 726 727static int 728insert_entry(const xt_chainlabel chain, 729 struct ip6t_entry *fw, 730 unsigned int rulenum, 731 unsigned int nsaddrs, 732 const struct in6_addr saddrs[], 733 const struct in6_addr smasks[], 734 unsigned int ndaddrs, 735 const struct in6_addr daddrs[], 736 const struct in6_addr dmasks[], 737 int verbose, 738 struct xtc_handle *handle) 739{ 740 unsigned int i, j; 741 int ret = 1; 742 743 for (i = 0; i < nsaddrs; i++) { 744 fw->ipv6.src = saddrs[i]; 745 fw->ipv6.smsk = smasks[i]; 746 for (j = 0; j < ndaddrs; j++) { 747 fw->ipv6.dst = daddrs[j]; 748 fw->ipv6.dmsk = dmasks[j]; 749 if (verbose) 750 print_firewall_line(fw, handle); 751 ret &= ip6tc_insert_entry(chain, fw, rulenum, handle); 752 } 753 } 754 755 return ret; 756} 757 758static unsigned char * 759make_delete_mask(const struct xtables_rule_match *matches, 760 const struct xtables_target *target) 761{ 762 /* Establish mask for comparison */ 763 unsigned int size; 764 const struct xtables_rule_match *matchp; 765 unsigned char *mask, *mptr; 766 767 size = sizeof(struct ip6t_entry); 768 for (matchp = matches; matchp; matchp = matchp->next) 769 size += XT_ALIGN(sizeof(struct ip6t_entry_match)) + matchp->match->size; 770 771 mask = xtables_calloc(1, size 772 + XT_ALIGN(sizeof(struct ip6t_entry_target)) 773 + target->size); 774 775 memset(mask, 0xFF, sizeof(struct ip6t_entry)); 776 mptr = mask + sizeof(struct ip6t_entry); 777 778 for (matchp = matches; matchp; matchp = matchp->next) { 779 memset(mptr, 0xFF, 780 XT_ALIGN(sizeof(struct ip6t_entry_match)) 781 + matchp->match->userspacesize); 782 mptr += XT_ALIGN(sizeof(struct ip6t_entry_match)) + matchp->match->size; 783 } 784 785 memset(mptr, 0xFF, 786 XT_ALIGN(sizeof(struct ip6t_entry_target)) 787 + target->userspacesize); 788 789 return mask; 790} 791 792static int 793delete_entry(const xt_chainlabel chain, 794 struct ip6t_entry *fw, 795 unsigned int nsaddrs, 796 const struct in6_addr saddrs[], 797 const struct in6_addr smasks[], 798 unsigned int ndaddrs, 799 const struct in6_addr daddrs[], 800 const struct in6_addr dmasks[], 801 int verbose, 802 struct xtc_handle *handle, 803 struct xtables_rule_match *matches, 804 const struct xtables_target *target) 805{ 806 unsigned int i, j; 807 int ret = 1; 808 unsigned char *mask; 809 810 mask = make_delete_mask(matches, target); 811 for (i = 0; i < nsaddrs; i++) { 812 fw->ipv6.src = saddrs[i]; 813 fw->ipv6.smsk = smasks[i]; 814 for (j = 0; j < ndaddrs; j++) { 815 fw->ipv6.dst = daddrs[j]; 816 fw->ipv6.dmsk = dmasks[j]; 817 if (verbose) 818 print_firewall_line(fw, handle); 819 ret &= ip6tc_delete_entry(chain, fw, mask, handle); 820 } 821 } 822 free(mask); 823 824 return ret; 825} 826 827static int 828check_entry(const xt_chainlabel chain, struct ip6t_entry *fw, 829 unsigned int nsaddrs, const struct in6_addr *saddrs, 830 const struct in6_addr *smasks, unsigned int ndaddrs, 831 const struct in6_addr *daddrs, const struct in6_addr *dmasks, 832 bool verbose, struct xtc_handle *handle, 833 struct xtables_rule_match *matches, 834 const struct xtables_target *target) 835{ 836 unsigned int i, j; 837 int ret = 1; 838 unsigned char *mask; 839 840 mask = make_delete_mask(matches, target); 841 for (i = 0; i < nsaddrs; i++) { 842 fw->ipv6.src = saddrs[i]; 843 fw->ipv6.smsk = smasks[i]; 844 for (j = 0; j < ndaddrs; j++) { 845 fw->ipv6.dst = daddrs[j]; 846 fw->ipv6.dmsk = dmasks[j]; 847 if (verbose) 848 print_firewall_line(fw, handle); 849 ret &= ip6tc_check_entry(chain, fw, mask, handle); 850 } 851 } 852 853 free(mask); 854 return ret; 855} 856 857int 858for_each_chain6(int (*fn)(const xt_chainlabel, int, struct xtc_handle *), 859 int verbose, int builtinstoo, struct xtc_handle *handle) 860{ 861 int ret = 1; 862 const char *chain; 863 char *chains; 864 unsigned int i, chaincount = 0; 865 866 chain = ip6tc_first_chain(handle); 867 while (chain) { 868 chaincount++; 869 chain = ip6tc_next_chain(handle); 870 } 871 872 chains = xtables_malloc(sizeof(xt_chainlabel) * chaincount); 873 i = 0; 874 chain = ip6tc_first_chain(handle); 875 while (chain) { 876 strcpy(chains + i*sizeof(xt_chainlabel), chain); 877 i++; 878 chain = ip6tc_next_chain(handle); 879 } 880 881 for (i = 0; i < chaincount; i++) { 882 if (!builtinstoo 883 && ip6tc_builtin(chains + i*sizeof(xt_chainlabel), 884 handle) == 1) 885 continue; 886 ret &= fn(chains + i*sizeof(xt_chainlabel), verbose, handle); 887 } 888 889 free(chains); 890 return ret; 891} 892 893int 894flush_entries6(const xt_chainlabel chain, int verbose, 895 struct xtc_handle *handle) 896{ 897 if (!chain) 898 return for_each_chain6(flush_entries6, verbose, 1, handle); 899 900 if (verbose) 901 fprintf(stdout, "Flushing chain `%s'\n", chain); 902 return ip6tc_flush_entries(chain, handle); 903} 904 905static int 906zero_entries(const xt_chainlabel chain, int verbose, 907 struct xtc_handle *handle) 908{ 909 if (!chain) 910 return for_each_chain6(zero_entries, verbose, 1, handle); 911 912 if (verbose) 913 fprintf(stdout, "Zeroing chain `%s'\n", chain); 914 return ip6tc_zero_entries(chain, handle); 915} 916 917int 918delete_chain6(const xt_chainlabel chain, int verbose, 919 struct xtc_handle *handle) 920{ 921 if (!chain) 922 return for_each_chain6(delete_chain6, verbose, 0, handle); 923 924 if (verbose) 925 fprintf(stdout, "Deleting chain `%s'\n", chain); 926 return ip6tc_delete_chain(chain, handle); 927} 928 929static int 930list_entries(const xt_chainlabel chain, int rulenum, int verbose, int numeric, 931 int expanded, int linenumbers, struct xtc_handle *handle) 932{ 933 int found = 0; 934 unsigned int format; 935 const char *this; 936 937 format = FMT_OPTIONS; 938 if (!verbose) 939 format |= FMT_NOCOUNTS; 940 else 941 format |= FMT_VIA; 942 943 if (numeric) 944 format |= FMT_NUMERIC; 945 946 if (!expanded) 947 format |= FMT_KILOMEGAGIGA; 948 949 if (linenumbers) 950 format |= FMT_LINENUMBERS; 951 952 for (this = ip6tc_first_chain(handle); 953 this; 954 this = ip6tc_next_chain(handle)) { 955 const struct ip6t_entry *i; 956 unsigned int num; 957 958 if (chain && strcmp(chain, this) != 0) 959 continue; 960 961 if (found) printf("\n"); 962 963 if (!rulenum) 964 print_header(format, this, handle); 965 i = ip6tc_first_rule(this, handle); 966 967 num = 0; 968 while (i) { 969 num++; 970 if (!rulenum || num == rulenum) 971 print_firewall(i, 972 ip6tc_get_target(i, handle), 973 num, 974 format, 975 handle); 976 i = ip6tc_next_rule(i, handle); 977 } 978 found = 1; 979 } 980 981 errno = ENOENT; 982 return found; 983} 984 985/* This assumes that mask is contiguous, and byte-bounded. */ 986static void 987print_iface(char letter, const char *iface, const unsigned char *mask, 988 int invert) 989{ 990 unsigned int i; 991 992 if (mask[0] == 0) 993 return; 994 995 printf("%s -%c ", invert ? " !" : "", letter); 996 997 for (i = 0; i < IFNAMSIZ; i++) { 998 if (mask[i] != 0) { 999 if (iface[i] != '\0') 1000 printf("%c", iface[i]); 1001 } else { 1002 /* we can access iface[i-1] here, because 1003 * a few lines above we make sure that mask[0] != 0 */ 1004 if (iface[i-1] != '\0') 1005 printf("+"); 1006 break; 1007 } 1008 } 1009} 1010 1011/* The ip6tables looks up the /etc/protocols. */ 1012static void print_proto(uint16_t proto, int invert) 1013{ 1014 if (proto) { 1015 unsigned int i; 1016 const char *invertstr = invert ? " !" : ""; 1017 1018 const struct protoent *pent = getprotobynumber(proto); 1019 if (pent) { 1020 printf("%s -p %s", 1021 invertstr, pent->p_name); 1022 return; 1023 } 1024 1025 for (i = 0; xtables_chain_protos[i].name != NULL; ++i) 1026 if (xtables_chain_protos[i].num == proto) { 1027 printf("%s -p %s", 1028 invertstr, xtables_chain_protos[i].name); 1029 return; 1030 } 1031 1032 printf("%s -p %u", invertstr, proto); 1033 } 1034} 1035 1036static int print_match_save(const struct ip6t_entry_match *e, 1037 const struct ip6t_ip6 *ip) 1038{ 1039 const struct xtables_match *match = 1040 xtables_find_match(e->u.user.name, XTF_TRY_LOAD, NULL); 1041 1042 if (match) { 1043 printf(" -m %s", e->u.user.name); 1044 1045 /* some matches don't provide a save function */ 1046 if (match->save) 1047 match->save(ip, e); 1048 } else { 1049 if (e->u.match_size) { 1050 fprintf(stderr, 1051 "Can't find library for match `%s'\n", 1052 e->u.user.name); 1053 exit(1); 1054 } 1055 } 1056 return 0; 1057} 1058 1059/* print a given ip including mask if neccessary */ 1060static void print_ip(const char *prefix, const struct in6_addr *ip, 1061 const struct in6_addr *mask, int invert) 1062{ 1063 char buf[51]; 1064 int l = ipv6_prefix_length(mask); 1065 1066 if (l == 0 && !invert) 1067 return; 1068 1069 printf("%s %s %s", 1070 invert ? " !" : "", 1071 prefix, 1072 inet_ntop(AF_INET6, ip, buf, sizeof buf)); 1073 1074 if (l == -1) 1075 printf("/%s", inet_ntop(AF_INET6, mask, buf, sizeof buf)); 1076 else 1077 printf("/%d", l); 1078} 1079 1080/* We want this to be readable, so only print out neccessary fields. 1081 * Because that's the kind of world I want to live in. */ 1082void print_rule6(const struct ip6t_entry *e, 1083 struct xtc_handle *h, const char *chain, int counters) 1084{ 1085 const struct ip6t_entry_target *t; 1086 const char *target_name; 1087 1088 /* print counters for iptables-save */ 1089 if (counters > 0) 1090 printf("[%llu:%llu] ", (unsigned long long)e->counters.pcnt, (unsigned long long)e->counters.bcnt); 1091 1092 /* print chain name */ 1093 printf("-A %s", chain); 1094 1095 /* Print IP part. */ 1096 print_ip("-s", &(e->ipv6.src), &(e->ipv6.smsk), 1097 e->ipv6.invflags & IP6T_INV_SRCIP); 1098 1099 print_ip("-d", &(e->ipv6.dst), &(e->ipv6.dmsk), 1100 e->ipv6.invflags & IP6T_INV_DSTIP); 1101 1102 print_iface('i', e->ipv6.iniface, e->ipv6.iniface_mask, 1103 e->ipv6.invflags & IP6T_INV_VIA_IN); 1104 1105 print_iface('o', e->ipv6.outiface, e->ipv6.outiface_mask, 1106 e->ipv6.invflags & IP6T_INV_VIA_OUT); 1107 1108 print_proto(e->ipv6.proto, e->ipv6.invflags & IP6T_INV_PROTO); 1109 1110#if 0 1111 /* not definied in ipv6 1112 * FIXME: linux/netfilter_ipv6/ip6_tables: IP6T_INV_FRAG why definied? */ 1113 if (e->ipv6.flags & IPT_F_FRAG) 1114 printf("%s -f", 1115 e->ipv6.invflags & IP6T_INV_FRAG ? " !" : ""); 1116#endif 1117 1118 if (e->ipv6.flags & IP6T_F_TOS) 1119 printf("%s -? %d", 1120 e->ipv6.invflags & IP6T_INV_TOS ? " !" : "", 1121 e->ipv6.tos); 1122 1123 /* Print matchinfo part */ 1124 if (e->target_offset) { 1125 IP6T_MATCH_ITERATE(e, print_match_save, &e->ipv6); 1126 } 1127 1128 /* print counters for iptables -R */ 1129 if (counters < 0) 1130 printf(" -c %llu %llu", (unsigned long long)e->counters.pcnt, (unsigned long long)e->counters.bcnt); 1131 1132 /* Print target name */ 1133 target_name = ip6tc_get_target(e, h); 1134 if (target_name && (*target_name != '\0')) 1135#ifdef IP6T_F_GOTO 1136 printf(" -%c %s", e->ipv6.flags & IP6T_F_GOTO ? 'g' : 'j', target_name); 1137#else 1138 printf(" -j %s", target_name); 1139#endif 1140 1141 /* Print targinfo part */ 1142 t = ip6t_get_target((struct ip6t_entry *)e); 1143 if (t->u.user.name[0]) { 1144 struct xtables_target *target = 1145 xtables_find_target(t->u.user.name, XTF_TRY_LOAD); 1146 1147 if (!target) { 1148 fprintf(stderr, "Can't find library for target `%s'\n", 1149 t->u.user.name); 1150 exit(1); 1151 } 1152 1153 if (target->save) 1154 target->save(&e->ipv6, t); 1155 else { 1156 /* If the target size is greater than ip6t_entry_target 1157 * there is something to be saved, we just don't know 1158 * how to print it */ 1159 if (t->u.target_size != 1160 sizeof(struct ip6t_entry_target)) { 1161 fprintf(stderr, "Target `%s' is missing " 1162 "save function\n", 1163 t->u.user.name); 1164 exit(1); 1165 } 1166 } 1167 } 1168 printf("\n"); 1169} 1170 1171static int 1172list_rules(const xt_chainlabel chain, int rulenum, int counters, 1173 struct xtc_handle *handle) 1174{ 1175 const char *this = NULL; 1176 int found = 0; 1177 1178 if (counters) 1179 counters = -1; /* iptables -c format */ 1180 1181 /* Dump out chain names first, 1182 * thereby preventing dependency conflicts */ 1183 if (!rulenum) for (this = ip6tc_first_chain(handle); 1184 this; 1185 this = ip6tc_next_chain(handle)) { 1186 if (chain && strcmp(this, chain) != 0) 1187 continue; 1188 1189 if (ip6tc_builtin(this, handle)) { 1190 struct ip6t_counters count; 1191 printf("-P %s %s", this, ip6tc_get_policy(this, &count, handle)); 1192 if (counters) 1193 printf(" -c %llu %llu", (unsigned long long)count.pcnt, (unsigned long long)count.bcnt); 1194 printf("\n"); 1195 } else { 1196 printf("-N %s\n", this); 1197 } 1198 } 1199 1200 for (this = ip6tc_first_chain(handle); 1201 this; 1202 this = ip6tc_next_chain(handle)) { 1203 const struct ip6t_entry *e; 1204 int num = 0; 1205 1206 if (chain && strcmp(this, chain) != 0) 1207 continue; 1208 1209 /* Dump out rules */ 1210 e = ip6tc_first_rule(this, handle); 1211 while(e) { 1212 num++; 1213 if (!rulenum || num == rulenum) 1214 print_rule6(e, handle, this, counters); 1215 e = ip6tc_next_rule(e, handle); 1216 } 1217 found = 1; 1218 } 1219 1220 errno = ENOENT; 1221 return found; 1222} 1223 1224static struct ip6t_entry * 1225generate_entry(const struct ip6t_entry *fw, 1226 struct xtables_rule_match *matches, 1227 struct ip6t_entry_target *target) 1228{ 1229 unsigned int size; 1230 struct xtables_rule_match *matchp; 1231 struct ip6t_entry *e; 1232 1233 size = sizeof(struct ip6t_entry); 1234 for (matchp = matches; matchp; matchp = matchp->next) 1235 size += matchp->match->m->u.match_size; 1236 1237 e = xtables_malloc(size + target->u.target_size); 1238 *e = *fw; 1239 e->target_offset = size; 1240 e->next_offset = size + target->u.target_size; 1241 1242 size = 0; 1243 for (matchp = matches; matchp; matchp = matchp->next) { 1244 memcpy(e->elems + size, matchp->match->m, matchp->match->m->u.match_size); 1245 size += matchp->match->m->u.match_size; 1246 } 1247 memcpy(e->elems + size, target, target->u.target_size); 1248 1249 return e; 1250} 1251 1252static void clear_rule_matches(struct xtables_rule_match **matches) 1253{ 1254 struct xtables_rule_match *matchp, *tmp; 1255 1256 for (matchp = *matches; matchp;) { 1257 tmp = matchp->next; 1258 if (matchp->match->m) { 1259 free(matchp->match->m); 1260 matchp->match->m = NULL; 1261 } 1262 if (matchp->match == matchp->match->next) { 1263 free(matchp->match); 1264 matchp->match = NULL; 1265 } 1266 free(matchp); 1267 matchp = tmp; 1268 } 1269 1270 *matches = NULL; 1271} 1272 1273static void command_jump(struct iptables_command_state *cs) 1274{ 1275 size_t size; 1276 1277 set_option(&cs->options, OPT_JUMP, &cs->fw6.ipv6.invflags, cs->invert); 1278 cs->jumpto = parse_target(optarg); 1279 /* TRY_LOAD (may be chain name) */ 1280 cs->target = xtables_find_target(cs->jumpto, XTF_TRY_LOAD); 1281 1282 if (cs->target == NULL) 1283 return; 1284 1285 size = XT_ALIGN(sizeof(struct ip6t_entry_target)) + cs->target->size; 1286 1287 cs->target->t = xtables_calloc(1, size); 1288 cs->target->t->u.target_size = size; 1289 strcpy(cs->target->t->u.user.name, cs->jumpto); 1290 cs->target->t->u.user.revision = cs->target->revision; 1291 xs_init_target(cs->target); 1292 if (cs->target->x6_options != NULL) 1293 opts = xtables_options_xfrm(ip6tables_globals.orig_opts, opts, 1294 cs->target->x6_options, 1295 &cs->target->option_offset); 1296 else 1297 opts = xtables_merge_options(ip6tables_globals.orig_opts, opts, 1298 cs->target->extra_opts, 1299 &cs->target->option_offset); 1300 if (opts == NULL) 1301 xtables_error(OTHER_PROBLEM, "can't alloc memory!"); 1302} 1303 1304static void command_match(struct iptables_command_state *cs) 1305{ 1306 struct xtables_match *m; 1307 size_t size; 1308 1309 if (cs->invert) 1310 xtables_error(PARAMETER_PROBLEM, 1311 "unexpected ! flag before --match"); 1312 1313 m = xtables_find_match(optarg, XTF_LOAD_MUST_SUCCEED, &cs->matches); 1314 size = XT_ALIGN(sizeof(struct ip6t_entry_match)) + m->size; 1315 m->m = xtables_calloc(1, size); 1316 m->m->u.match_size = size; 1317 strcpy(m->m->u.user.name, m->name); 1318 m->m->u.user.revision = m->revision; 1319 xs_init_match(m); 1320 if (m == m->next) 1321 return; 1322 /* Merge options for non-cloned matches */ 1323 if (m->x6_options != NULL) 1324 opts = xtables_options_xfrm(ip6tables_globals.orig_opts, opts, 1325 m->x6_options, &m->option_offset); 1326 else if (m->extra_opts != NULL) 1327 opts = xtables_merge_options(ip6tables_globals.orig_opts, opts, 1328 m->extra_opts, &m->option_offset); 1329} 1330 1331int do_command6(int argc, char *argv[], char **table, struct xtc_handle **handle) 1332{ 1333 struct iptables_command_state cs; 1334 struct ip6t_entry *e = NULL; 1335 unsigned int nsaddrs = 0, ndaddrs = 0; 1336 struct in6_addr *saddrs = NULL, *daddrs = NULL; 1337 struct in6_addr *smasks = NULL, *dmasks = NULL; 1338 1339 int verbose = 0; 1340 const char *chain = NULL; 1341 const char *shostnetworkmask = NULL, *dhostnetworkmask = NULL; 1342 const char *policy = NULL, *newname = NULL; 1343 unsigned int rulenum = 0, command = 0; 1344 const char *pcnt = NULL, *bcnt = NULL; 1345 int ret = 1; 1346 struct xtables_match *m; 1347 struct xtables_rule_match *matchp; 1348 struct xtables_target *t; 1349 unsigned long long cnt; 1350 1351 memset(&cs, 0, sizeof(cs)); 1352 cs.jumpto = ""; 1353 cs.argv = argv; 1354 1355 /* re-set optind to 0 in case do_command6 gets called 1356 * a second time */ 1357 optind = 0; 1358 1359 /* clear mflags in case do_command6 gets called a second time 1360 * (we clear the global list of all matches for security)*/ 1361 for (m = xtables_matches; m; m = m->next) 1362 m->mflags = 0; 1363 1364 for (t = xtables_targets; t; t = t->next) { 1365 t->tflags = 0; 1366 t->used = 0; 1367 } 1368 1369 /* Suppress error messages: we may add new options if we 1370 demand-load a protocol. */ 1371 opterr = 0; 1372 1373 opts = xt_params->orig_opts; 1374 while ((cs.c = getopt_long(argc, argv, 1375 "-:A:C:D:R:I:L::S::M:F::Z::N:X::E:P:Vh::o:p:s:d:j:i:bvnt:m:xc:g:46", 1376 opts, NULL)) != -1) { 1377 switch (cs.c) { 1378 /* 1379 * Command selection 1380 */ 1381 case 'A': 1382 add_command(&command, CMD_APPEND, CMD_NONE, 1383 cs.invert); 1384 chain = optarg; 1385 break; 1386 1387 case 'C': 1388 add_command(&command, CMD_CHECK, CMD_NONE, 1389 cs.invert); 1390 chain = optarg; 1391 break; 1392 1393 case 'D': 1394 add_command(&command, CMD_DELETE, CMD_NONE, 1395 cs.invert); 1396 chain = optarg; 1397 if (optind < argc && argv[optind][0] != '-' 1398 && argv[optind][0] != '!') { 1399 rulenum = parse_rulenumber(argv[optind++]); 1400 command = CMD_DELETE_NUM; 1401 } 1402 break; 1403 1404 case 'R': 1405 add_command(&command, CMD_REPLACE, CMD_NONE, 1406 cs.invert); 1407 chain = optarg; 1408 if (optind < argc && argv[optind][0] != '-' 1409 && argv[optind][0] != '!') 1410 rulenum = parse_rulenumber(argv[optind++]); 1411 else 1412 xtables_error(PARAMETER_PROBLEM, 1413 "-%c requires a rule number", 1414 cmd2char(CMD_REPLACE)); 1415 break; 1416 1417 case 'I': 1418 add_command(&command, CMD_INSERT, CMD_NONE, 1419 cs.invert); 1420 chain = optarg; 1421 if (optind < argc && argv[optind][0] != '-' 1422 && argv[optind][0] != '!') 1423 rulenum = parse_rulenumber(argv[optind++]); 1424 else rulenum = 1; 1425 break; 1426 1427 case 'L': 1428 add_command(&command, CMD_LIST, 1429 CMD_ZERO | CMD_ZERO_NUM, cs.invert); 1430 if (optarg) chain = optarg; 1431 else if (optind < argc && argv[optind][0] != '-' 1432 && argv[optind][0] != '!') 1433 chain = argv[optind++]; 1434 if (optind < argc && argv[optind][0] != '-' 1435 && argv[optind][0] != '!') 1436 rulenum = parse_rulenumber(argv[optind++]); 1437 break; 1438 1439 case 'S': 1440 add_command(&command, CMD_LIST_RULES, 1441 CMD_ZERO | CMD_ZERO_NUM, cs.invert); 1442 if (optarg) chain = optarg; 1443 else if (optind < argc && argv[optind][0] != '-' 1444 && argv[optind][0] != '!') 1445 chain = argv[optind++]; 1446 if (optind < argc && argv[optind][0] != '-' 1447 && argv[optind][0] != '!') 1448 rulenum = parse_rulenumber(argv[optind++]); 1449 break; 1450 1451 case 'F': 1452 add_command(&command, CMD_FLUSH, CMD_NONE, 1453 cs.invert); 1454 if (optarg) chain = optarg; 1455 else if (optind < argc && argv[optind][0] != '-' 1456 && argv[optind][0] != '!') 1457 chain = argv[optind++]; 1458 break; 1459 1460 case 'Z': 1461 add_command(&command, CMD_ZERO, CMD_LIST|CMD_LIST_RULES, 1462 cs.invert); 1463 if (optarg) chain = optarg; 1464 else if (optind < argc && argv[optind][0] != '-' 1465 && argv[optind][0] != '!') 1466 chain = argv[optind++]; 1467 if (optind < argc && argv[optind][0] != '-' 1468 && argv[optind][0] != '!') { 1469 rulenum = parse_rulenumber(argv[optind++]); 1470 command = CMD_ZERO_NUM; 1471 } 1472 break; 1473 1474 case 'N': 1475 if (optarg && (*optarg == '-' || *optarg == '!')) 1476 xtables_error(PARAMETER_PROBLEM, 1477 "chain name not allowed to start " 1478 "with `%c'\n", *optarg); 1479 if (xtables_find_target(optarg, XTF_TRY_LOAD)) 1480 xtables_error(PARAMETER_PROBLEM, 1481 "chain name may not clash " 1482 "with target name\n"); 1483 add_command(&command, CMD_NEW_CHAIN, CMD_NONE, 1484 cs.invert); 1485 chain = optarg; 1486 break; 1487 1488 case 'X': 1489 add_command(&command, CMD_DELETE_CHAIN, CMD_NONE, 1490 cs.invert); 1491 if (optarg) chain = optarg; 1492 else if (optind < argc && argv[optind][0] != '-' 1493 && argv[optind][0] != '!') 1494 chain = argv[optind++]; 1495 break; 1496 1497 case 'E': 1498 add_command(&command, CMD_RENAME_CHAIN, CMD_NONE, 1499 cs.invert); 1500 chain = optarg; 1501 if (optind < argc && argv[optind][0] != '-' 1502 && argv[optind][0] != '!') 1503 newname = argv[optind++]; 1504 else 1505 xtables_error(PARAMETER_PROBLEM, 1506 "-%c requires old-chain-name and " 1507 "new-chain-name", 1508 cmd2char(CMD_RENAME_CHAIN)); 1509 break; 1510 1511 case 'P': 1512 add_command(&command, CMD_SET_POLICY, CMD_NONE, 1513 cs.invert); 1514 chain = optarg; 1515 if (optind < argc && argv[optind][0] != '-' 1516 && argv[optind][0] != '!') 1517 policy = argv[optind++]; 1518 else 1519 xtables_error(PARAMETER_PROBLEM, 1520 "-%c requires a chain and a policy", 1521 cmd2char(CMD_SET_POLICY)); 1522 break; 1523 1524 case 'h': 1525 if (!optarg) 1526 optarg = argv[optind]; 1527 1528 /* ip6tables -p icmp -h */ 1529 if (!cs.matches && cs.protocol) 1530 xtables_find_match(cs.protocol, XTF_TRY_LOAD, 1531 &cs.matches); 1532 1533 exit_printhelp(cs.matches); 1534 1535 /* 1536 * Option selection 1537 */ 1538 case 'p': 1539 set_option(&cs.options, OPT_PROTOCOL, &cs.fw6.ipv6.invflags, 1540 cs.invert); 1541 1542 /* Canonicalize into lower case */ 1543 for (cs.protocol = optarg; *cs.protocol; cs.protocol++) 1544 *cs.protocol = tolower(*cs.protocol); 1545 1546 cs.protocol = optarg; 1547 cs.fw6.ipv6.proto = xtables_parse_protocol(cs.protocol); 1548 cs.fw6.ipv6.flags |= IP6T_F_PROTO; 1549 1550 if (cs.fw6.ipv6.proto == 0 1551 && (cs.fw6.ipv6.invflags & IP6T_INV_PROTO)) 1552 xtables_error(PARAMETER_PROBLEM, 1553 "rule would never match protocol"); 1554 1555 if (is_exthdr(cs.fw6.ipv6.proto) 1556 && (cs.fw6.ipv6.invflags & IP6T_INV_PROTO) == 0) 1557 fprintf(stderr, 1558 "Warning: never matched protocol: %s. " 1559 "use extension match instead.\n", 1560 cs.protocol); 1561 break; 1562 1563 case 's': 1564 set_option(&cs.options, OPT_SOURCE, &cs.fw6.ipv6.invflags, 1565 cs.invert); 1566 shostnetworkmask = optarg; 1567 break; 1568 1569 case 'd': 1570 set_option(&cs.options, OPT_DESTINATION, &cs.fw6.ipv6.invflags, 1571 cs.invert); 1572 dhostnetworkmask = optarg; 1573 break; 1574 1575#ifdef IP6T_F_GOTO 1576 case 'g': 1577 set_option(&cs.options, OPT_JUMP, &cs.fw6.ipv6.invflags, 1578 cs.invert); 1579 cs.fw6.ipv6.flags |= IP6T_F_GOTO; 1580 cs.jumpto = parse_target(optarg); 1581 break; 1582#endif 1583 1584 case 'j': 1585 command_jump(&cs); 1586 break; 1587 1588 1589 case 'i': 1590 if (*optarg == '\0') 1591 xtables_error(PARAMETER_PROBLEM, 1592 "Empty interface is likely to be " 1593 "undesired"); 1594 set_option(&cs.options, OPT_VIANAMEIN, &cs.fw6.ipv6.invflags, 1595 cs.invert); 1596 xtables_parse_interface(optarg, 1597 cs.fw6.ipv6.iniface, 1598 cs.fw6.ipv6.iniface_mask); 1599 break; 1600 1601 case 'o': 1602 if (*optarg == '\0') 1603 xtables_error(PARAMETER_PROBLEM, 1604 "Empty interface is likely to be " 1605 "undesired"); 1606 set_option(&cs.options, OPT_VIANAMEOUT, &cs.fw6.ipv6.invflags, 1607 cs.invert); 1608 xtables_parse_interface(optarg, 1609 cs.fw6.ipv6.outiface, 1610 cs.fw6.ipv6.outiface_mask); 1611 break; 1612 1613 case 'v': 1614 if (!verbose) 1615 set_option(&cs.options, OPT_VERBOSE, 1616 &cs.fw6.ipv6.invflags, cs.invert); 1617 verbose++; 1618 break; 1619 1620 case 'm': 1621 command_match(&cs); 1622 break; 1623 1624 case 'n': 1625 set_option(&cs.options, OPT_NUMERIC, &cs.fw6.ipv6.invflags, 1626 cs.invert); 1627 break; 1628 1629 case 't': 1630 if (cs.invert) 1631 xtables_error(PARAMETER_PROBLEM, 1632 "unexpected ! flag before --table"); 1633 *table = optarg; 1634 break; 1635 1636 case 'x': 1637 set_option(&cs.options, OPT_EXPANDED, &cs.fw6.ipv6.invflags, 1638 cs.invert); 1639 break; 1640 1641 case 'V': 1642 if (cs.invert) 1643 printf("Not %s ;-)\n", prog_vers); 1644 else 1645 printf("%s v%s\n", 1646 prog_name, prog_vers); 1647 exit(0); 1648 1649 case '0': 1650 set_option(&cs.options, OPT_LINENUMBERS, &cs.fw6.ipv6.invflags, 1651 cs.invert); 1652 break; 1653 1654 case 'M': 1655 xtables_modprobe_program = optarg; 1656 break; 1657 1658 case 'c': 1659 1660 set_option(&cs.options, OPT_COUNTERS, &cs.fw6.ipv6.invflags, 1661 cs.invert); 1662 pcnt = optarg; 1663 bcnt = strchr(pcnt + 1, ','); 1664 if (bcnt) 1665 bcnt++; 1666 if (!bcnt && optind < argc && argv[optind][0] != '-' 1667 && argv[optind][0] != '!') 1668 bcnt = argv[optind++]; 1669 if (!bcnt) 1670 xtables_error(PARAMETER_PROBLEM, 1671 "-%c requires packet and byte counter", 1672 opt2char(OPT_COUNTERS)); 1673 1674 if (sscanf(pcnt, "%llu", &cnt) != 1) 1675 xtables_error(PARAMETER_PROBLEM, 1676 "-%c packet counter not numeric", 1677 opt2char(OPT_COUNTERS)); 1678 cs.fw6.counters.pcnt = cnt; 1679 1680 if (sscanf(bcnt, "%llu", &cnt) != 1) 1681 xtables_error(PARAMETER_PROBLEM, 1682 "-%c byte counter not numeric", 1683 opt2char(OPT_COUNTERS)); 1684 cs.fw6.counters.bcnt = cnt; 1685 break; 1686 1687 case '4': 1688 /* This is not the IPv4 iptables */ 1689 if (line != -1) 1690 return 1; /* success: line ignored */ 1691 fprintf(stderr, "This is the IPv6 version of ip6tables.\n"); 1692 exit_tryhelp(2); 1693 1694 case '6': 1695 /* This is indeed the IPv6 ip6tables */ 1696 break; 1697 1698 case 1: /* non option */ 1699 if (optarg[0] == '!' && optarg[1] == '\0') { 1700 if (cs.invert) 1701 xtables_error(PARAMETER_PROBLEM, 1702 "multiple consecutive ! not" 1703 " allowed"); 1704 cs.invert = TRUE; 1705 optarg[0] = '\0'; 1706 continue; 1707 } 1708 fprintf(stderr, "Bad argument `%s'\n", optarg); 1709 exit_tryhelp(2); 1710 1711 default: 1712 if (command_default(&cs, &ip6tables_globals) == 1) 1713 /* 1714 * If new options were loaded, we must retry 1715 * getopt immediately and not allow 1716 * cs.invert=FALSE to be executed. 1717 */ 1718 continue; 1719 break; 1720 } 1721 cs.invert = FALSE; 1722 } 1723 1724 for (matchp = cs.matches; matchp; matchp = matchp->next) 1725 xtables_option_mfcall(matchp->match); 1726 if (cs.target != NULL) 1727 xtables_option_tfcall(cs.target); 1728 1729 /* Fix me: must put inverse options checking here --MN */ 1730 1731 if (optind < argc) 1732 xtables_error(PARAMETER_PROBLEM, 1733 "unknown arguments found on commandline"); 1734 if (!command) 1735 xtables_error(PARAMETER_PROBLEM, "no command specified"); 1736 if (cs.invert) 1737 xtables_error(PARAMETER_PROBLEM, 1738 "nothing appropriate following !"); 1739 1740 if (command & (CMD_REPLACE | CMD_INSERT | CMD_DELETE | CMD_APPEND | CMD_CHECK)) { 1741 if (!(cs.options & OPT_DESTINATION)) 1742 dhostnetworkmask = "::0/0"; 1743 if (!(cs.options & OPT_SOURCE)) 1744 shostnetworkmask = "::0/0"; 1745 } 1746 1747 if (shostnetworkmask) 1748 xtables_ip6parse_multiple(shostnetworkmask, &saddrs, 1749 &smasks, &nsaddrs); 1750 1751 if (dhostnetworkmask) 1752 xtables_ip6parse_multiple(dhostnetworkmask, &daddrs, 1753 &dmasks, &ndaddrs); 1754 1755 if ((nsaddrs > 1 || ndaddrs > 1) && 1756 (cs.fw6.ipv6.invflags & (IP6T_INV_SRCIP | IP6T_INV_DSTIP))) 1757 xtables_error(PARAMETER_PROBLEM, "! not allowed with multiple" 1758 " source or destination IP addresses"); 1759 1760 if (command == CMD_REPLACE && (nsaddrs != 1 || ndaddrs != 1)) 1761 xtables_error(PARAMETER_PROBLEM, "Replacement rule does not " 1762 "specify a unique address"); 1763 1764 generic_opt_check(command, cs.options); 1765 1766 if (chain != NULL && strlen(chain) >= XT_EXTENSION_MAXNAMELEN) 1767 xtables_error(PARAMETER_PROBLEM, 1768 "chain name `%s' too long (must be under %u chars)", 1769 chain, XT_EXTENSION_MAXNAMELEN); 1770 1771 /* only allocate handle if we weren't called with a handle */ 1772 if (!*handle) 1773 *handle = ip6tc_init(*table); 1774 1775 /* try to insmod the module if iptc_init failed */ 1776 if (!*handle && xtables_load_ko(xtables_modprobe_program, false) != -1) 1777 *handle = ip6tc_init(*table); 1778 1779 if (!*handle) 1780 xtables_error(VERSION_PROBLEM, 1781 "can't initialize ip6tables table `%s': %s", 1782 *table, ip6tc_strerror(errno)); 1783 1784 if (command == CMD_APPEND 1785 || command == CMD_DELETE 1786 || command == CMD_CHECK 1787 || command == CMD_INSERT 1788 || command == CMD_REPLACE) { 1789 if (strcmp(chain, "PREROUTING") == 0 1790 || strcmp(chain, "INPUT") == 0) { 1791 /* -o not valid with incoming packets. */ 1792 if (cs.options & OPT_VIANAMEOUT) 1793 xtables_error(PARAMETER_PROBLEM, 1794 "Can't use -%c with %s\n", 1795 opt2char(OPT_VIANAMEOUT), 1796 chain); 1797 } 1798 1799 if (strcmp(chain, "POSTROUTING") == 0 1800 || strcmp(chain, "OUTPUT") == 0) { 1801 /* -i not valid with outgoing packets */ 1802 if (cs.options & OPT_VIANAMEIN) 1803 xtables_error(PARAMETER_PROBLEM, 1804 "Can't use -%c with %s\n", 1805 opt2char(OPT_VIANAMEIN), 1806 chain); 1807 } 1808 1809 if (cs.target && ip6tc_is_chain(cs.jumpto, *handle)) { 1810 fprintf(stderr, 1811 "Warning: using chain %s, not extension\n", 1812 cs.jumpto); 1813 1814 if (cs.target->t) 1815 free(cs.target->t); 1816 1817 cs.target = NULL; 1818 } 1819 1820 /* If they didn't specify a target, or it's a chain 1821 name, use standard. */ 1822 if (!cs.target 1823 && (strlen(cs.jumpto) == 0 1824 || ip6tc_is_chain(cs.jumpto, *handle))) { 1825 size_t size; 1826 1827 cs.target = xtables_find_target(IP6T_STANDARD_TARGET, 1828 XTF_LOAD_MUST_SUCCEED); 1829 1830 size = sizeof(struct ip6t_entry_target) 1831 + cs.target->size; 1832 cs.target->t = xtables_calloc(1, size); 1833 cs.target->t->u.target_size = size; 1834 strcpy(cs.target->t->u.user.name, cs.jumpto); 1835 xs_init_target(cs.target); 1836 } 1837 1838 if (!cs.target) { 1839 /* it is no chain, and we can't load a plugin. 1840 * We cannot know if the plugin is corrupt, non 1841 * existant OR if the user just misspelled a 1842 * chain. */ 1843#ifdef IP6T_F_GOTO 1844 if (cs.fw6.ipv6.flags & IP6T_F_GOTO) 1845 xtables_error(PARAMETER_PROBLEM, 1846 "goto '%s' is not a chain\n", 1847 cs.jumpto); 1848#endif 1849 xtables_find_target(cs.jumpto, XTF_LOAD_MUST_SUCCEED); 1850 } else { 1851 e = generate_entry(&cs.fw6, cs.matches, cs.target->t); 1852 free(cs.target->t); 1853 } 1854 } 1855 1856 switch (command) { 1857 case CMD_APPEND: 1858 ret = append_entry(chain, e, 1859 nsaddrs, saddrs, smasks, 1860 ndaddrs, daddrs, dmasks, 1861 cs.options&OPT_VERBOSE, 1862 *handle); 1863 break; 1864 case CMD_DELETE: 1865 ret = delete_entry(chain, e, 1866 nsaddrs, saddrs, smasks, 1867 ndaddrs, daddrs, dmasks, 1868 cs.options&OPT_VERBOSE, 1869 *handle, cs.matches, cs.target); 1870 break; 1871 case CMD_DELETE_NUM: 1872 ret = ip6tc_delete_num_entry(chain, rulenum - 1, *handle); 1873 break; 1874 case CMD_CHECK: 1875 ret = check_entry(chain, e, 1876 nsaddrs, saddrs, smasks, 1877 ndaddrs, daddrs, dmasks, 1878 cs.options&OPT_VERBOSE, 1879 *handle, cs.matches, cs.target); 1880 break; 1881 case CMD_REPLACE: 1882 ret = replace_entry(chain, e, rulenum - 1, 1883 saddrs, smasks, daddrs, dmasks, 1884 cs.options&OPT_VERBOSE, *handle); 1885 break; 1886 case CMD_INSERT: 1887 ret = insert_entry(chain, e, rulenum - 1, 1888 nsaddrs, saddrs, smasks, 1889 ndaddrs, daddrs, dmasks, 1890 cs.options&OPT_VERBOSE, 1891 *handle); 1892 break; 1893 case CMD_FLUSH: 1894 ret = flush_entries6(chain, cs.options&OPT_VERBOSE, *handle); 1895 break; 1896 case CMD_ZERO: 1897 ret = zero_entries(chain, cs.options&OPT_VERBOSE, *handle); 1898 break; 1899 case CMD_ZERO_NUM: 1900 ret = ip6tc_zero_counter(chain, rulenum, *handle); 1901 break; 1902 case CMD_LIST: 1903 case CMD_LIST|CMD_ZERO: 1904 case CMD_LIST|CMD_ZERO_NUM: 1905 ret = list_entries(chain, 1906 rulenum, 1907 cs.options&OPT_VERBOSE, 1908 cs.options&OPT_NUMERIC, 1909 cs.options&OPT_EXPANDED, 1910 cs.options&OPT_LINENUMBERS, 1911 *handle); 1912 if (ret && (command & CMD_ZERO)) 1913 ret = zero_entries(chain, 1914 cs.options&OPT_VERBOSE, *handle); 1915 if (ret && (command & CMD_ZERO_NUM)) 1916 ret = ip6tc_zero_counter(chain, rulenum, *handle); 1917 break; 1918 case CMD_LIST_RULES: 1919 case CMD_LIST_RULES|CMD_ZERO: 1920 case CMD_LIST_RULES|CMD_ZERO_NUM: 1921 ret = list_rules(chain, 1922 rulenum, 1923 cs.options&OPT_VERBOSE, 1924 *handle); 1925 if (ret && (command & CMD_ZERO)) 1926 ret = zero_entries(chain, 1927 cs.options&OPT_VERBOSE, *handle); 1928 if (ret && (command & CMD_ZERO_NUM)) 1929 ret = ip6tc_zero_counter(chain, rulenum, *handle); 1930 break; 1931 case CMD_NEW_CHAIN: 1932 ret = ip6tc_create_chain(chain, *handle); 1933 break; 1934 case CMD_DELETE_CHAIN: 1935 ret = delete_chain6(chain, cs.options&OPT_VERBOSE, *handle); 1936 break; 1937 case CMD_RENAME_CHAIN: 1938 ret = ip6tc_rename_chain(chain, newname, *handle); 1939 break; 1940 case CMD_SET_POLICY: 1941 ret = ip6tc_set_policy(chain, policy, cs.options&OPT_COUNTERS ? &cs.fw6.counters : NULL, *handle); 1942 break; 1943 default: 1944 /* We should never reach this... */ 1945 exit_tryhelp(2); 1946 } 1947 1948 if (verbose > 1) 1949 dump_entries6(*handle); 1950 1951 clear_rule_matches(&cs.matches); 1952 1953 if (e != NULL) { 1954 free(e); 1955 e = NULL; 1956 } 1957 1958 free(saddrs); 1959 free(smasks); 1960 free(daddrs); 1961 free(dmasks); 1962 xtables_free_opts(1); 1963 1964 return ret; 1965} 1966