András Kis-Szabó | a420416 | 2002-04-24 09:35:01 +0000 | [diff] [blame] | 1 | /* Shared library add-on to ip6tables to add Routing header support. */ |
Jan Engelhardt | 32b8e61 | 2010-07-23 21:16:14 +0200 | [diff] [blame] | 2 | #include <stdbool.h> |
András Kis-Szabó | a420416 | 2002-04-24 09:35:01 +0000 | [diff] [blame] | 3 | #include <stdio.h> |
| 4 | #include <netdb.h> |
| 5 | #include <string.h> |
| 6 | #include <stdlib.h> |
| 7 | #include <getopt.h> |
| 8 | #include <errno.h> |
Jan Engelhardt | 5d9678a | 2008-11-20 10:15:35 +0100 | [diff] [blame] | 9 | #include <xtables.h> |
András Kis-Szabó | fce8699 | 2002-04-29 13:48:46 +0000 | [diff] [blame] | 10 | /*#include <linux/in6.h>*/ |
András Kis-Szabó | a420416 | 2002-04-24 09:35:01 +0000 | [diff] [blame] | 11 | #include <linux/netfilter_ipv6/ip6t_rt.h> |
András Kis-Szabó | fce8699 | 2002-04-29 13:48:46 +0000 | [diff] [blame] | 12 | #include <sys/types.h> |
| 13 | #include <sys/socket.h> |
| 14 | #include <arpa/inet.h> |
Jan Engelhardt | ddac6c5 | 2008-09-01 14:22:19 +0200 | [diff] [blame] | 15 | |
András Kis-Szabó | fce8699 | 2002-04-29 13:48:46 +0000 | [diff] [blame] | 16 | /*#define DEBUG 1*/ |
| 17 | |
Jan Engelhardt | 997045f | 2007-10-04 16:29:21 +0000 | [diff] [blame] | 18 | static void rt_help(void) |
András Kis-Szabó | a420416 | 2002-04-24 09:35:01 +0000 | [diff] [blame] | 19 | { |
| 20 | printf( |
Jan Engelhardt | 8b7c64d | 2008-04-15 11:48:25 +0200 | [diff] [blame] | 21 | "rt match options:\n" |
Jan Engelhardt | 9672792 | 2008-08-13 14:42:41 +0200 | [diff] [blame] | 22 | "[!] --rt-type type match the type\n" |
| 23 | "[!] --rt-segsleft num[:num] match the Segments Left field (range)\n" |
| 24 | "[!] --rt-len length total length of this header\n" |
Jan Engelhardt | 12a18d6 | 2011-02-18 01:45:05 +0100 | [diff] [blame] | 25 | " --rt-0-res check the reserved field too (type 0)\n" |
András Kis-Szabó | fce8699 | 2002-04-29 13:48:46 +0000 | [diff] [blame] | 26 | " --rt-0-addrs ADDR[,ADDR...] Type=0 addresses (list, max: %d)\n" |
| 27 | " --rt-0-not-strict List of Type=0 addresses not a strict list\n", |
Jan Engelhardt | 8b7c64d | 2008-04-15 11:48:25 +0200 | [diff] [blame] | 28 | IP6T_RT_HOPS); |
András Kis-Szabó | a420416 | 2002-04-24 09:35:01 +0000 | [diff] [blame] | 29 | } |
| 30 | |
Jan Engelhardt | 997045f | 2007-10-04 16:29:21 +0000 | [diff] [blame] | 31 | static const struct option rt_opts[] = { |
Jan Engelhardt | 32b8e61 | 2010-07-23 21:16:14 +0200 | [diff] [blame] | 32 | {.name = "rt-type", .has_arg = true, .val = '1'}, |
| 33 | {.name = "rt-segsleft", .has_arg = true, .val = '2'}, |
| 34 | {.name = "rt-len", .has_arg = true, .val = '3'}, |
| 35 | {.name = "rt-0-res", .has_arg = false, .val = '4'}, |
| 36 | {.name = "rt-0-addrs", .has_arg = true, .val = '5'}, |
| 37 | {.name = "rt-0-not-strict", .has_arg = false, .val = '6'}, |
| 38 | XT_GETOPT_TABLEEND, |
András Kis-Szabó | a420416 | 2002-04-24 09:35:01 +0000 | [diff] [blame] | 39 | }; |
| 40 | |
Jan Engelhardt | 7ac4052 | 2011-01-07 12:34:04 +0100 | [diff] [blame] | 41 | static uint32_t |
András Kis-Szabó | a420416 | 2002-04-24 09:35:01 +0000 | [diff] [blame] | 42 | parse_rt_num(const char *idstr, const char *typestr) |
| 43 | { |
| 44 | unsigned long int id; |
| 45 | char* ep; |
| 46 | |
| 47 | id = strtoul(idstr,&ep,0) ; |
| 48 | |
| 49 | if ( idstr == ep ) { |
Jan Engelhardt | 1829ed4 | 2009-02-21 03:29:44 +0100 | [diff] [blame] | 50 | xtables_error(PARAMETER_PROBLEM, |
András Kis-Szabó | a420416 | 2002-04-24 09:35:01 +0000 | [diff] [blame] | 51 | "RT no valid digits in %s `%s'", typestr, idstr); |
| 52 | } |
| 53 | if ( id == ULONG_MAX && errno == ERANGE ) { |
Jan Engelhardt | 1829ed4 | 2009-02-21 03:29:44 +0100 | [diff] [blame] | 54 | xtables_error(PARAMETER_PROBLEM, |
András Kis-Szabó | a420416 | 2002-04-24 09:35:01 +0000 | [diff] [blame] | 55 | "%s `%s' specified too big: would overflow", |
| 56 | typestr, idstr); |
| 57 | } |
| 58 | if ( *idstr != '\0' && *ep != '\0' ) { |
Jan Engelhardt | 1829ed4 | 2009-02-21 03:29:44 +0100 | [diff] [blame] | 59 | xtables_error(PARAMETER_PROBLEM, |
András Kis-Szabó | a420416 | 2002-04-24 09:35:01 +0000 | [diff] [blame] | 60 | "RT error parsing %s `%s'", typestr, idstr); |
| 61 | } |
Jan Engelhardt | 213e185 | 2009-01-27 17:24:34 +0100 | [diff] [blame] | 62 | return id; |
András Kis-Szabó | a420416 | 2002-04-24 09:35:01 +0000 | [diff] [blame] | 63 | } |
| 64 | |
| 65 | static void |
Jan Engelhardt | 7ac4052 | 2011-01-07 12:34:04 +0100 | [diff] [blame] | 66 | parse_rt_segsleft(const char *idstring, uint32_t *ids) |
András Kis-Szabó | a420416 | 2002-04-24 09:35:01 +0000 | [diff] [blame] | 67 | { |
| 68 | char *buffer; |
| 69 | char *cp; |
| 70 | |
| 71 | buffer = strdup(idstring); |
| 72 | if ((cp = strchr(buffer, ':')) == NULL) |
| 73 | ids[0] = ids[1] = parse_rt_num(buffer,"segsleft"); |
| 74 | else { |
| 75 | *cp = '\0'; |
| 76 | cp++; |
| 77 | |
| 78 | ids[0] = buffer[0] ? parse_rt_num(buffer,"segsleft") : 0; |
| 79 | ids[1] = cp[0] ? parse_rt_num(cp,"segsleft") : 0xFFFFFFFF; |
| 80 | } |
| 81 | free(buffer); |
| 82 | } |
| 83 | |
Jan Engelhardt | dd6e4b9 | 2011-05-07 00:05:24 +0200 | [diff] [blame] | 84 | static const char * |
András Kis-Szabó | fce8699 | 2002-04-29 13:48:46 +0000 | [diff] [blame] | 85 | addr_to_numeric(const struct in6_addr *addrp) |
| 86 | { |
| 87 | static char buf[50+1]; |
Jan Engelhardt | dd6e4b9 | 2011-05-07 00:05:24 +0200 | [diff] [blame] | 88 | return inet_ntop(AF_INET6, addrp, buf, sizeof(buf)); |
András Kis-Szabó | fce8699 | 2002-04-29 13:48:46 +0000 | [diff] [blame] | 89 | } |
| 90 | |
| 91 | static struct in6_addr * |
| 92 | numeric_to_addr(const char *num) |
| 93 | { |
| 94 | static struct in6_addr ap; |
| 95 | int err; |
| 96 | |
| 97 | if ((err=inet_pton(AF_INET6, num, &ap)) == 1) |
| 98 | return ≈ |
| 99 | #ifdef DEBUG |
| 100 | fprintf(stderr, "\nnumeric2addr: %d\n", err); |
| 101 | #endif |
Jan Engelhardt | 1829ed4 | 2009-02-21 03:29:44 +0100 | [diff] [blame] | 102 | xtables_error(PARAMETER_PROBLEM, "bad address: %s", num); |
András Kis-Szabó | fce8699 | 2002-04-29 13:48:46 +0000 | [diff] [blame] | 103 | |
| 104 | return (struct in6_addr *)NULL; |
| 105 | } |
| 106 | |
| 107 | |
| 108 | static int |
| 109 | parse_addresses(const char *addrstr, struct in6_addr *addrp) |
| 110 | { |
| 111 | char *buffer, *cp, *next; |
| 112 | unsigned int i; |
| 113 | |
| 114 | buffer = strdup(addrstr); |
Jan Engelhardt | 1829ed4 | 2009-02-21 03:29:44 +0100 | [diff] [blame] | 115 | if (!buffer) xtables_error(OTHER_PROBLEM, "strdup failed"); |
András Kis-Szabó | fce8699 | 2002-04-29 13:48:46 +0000 | [diff] [blame] | 116 | |
| 117 | for (cp=buffer, i=0; cp && i<IP6T_RT_HOPS; cp=next,i++) |
| 118 | { |
| 119 | next=strchr(cp, ','); |
| 120 | if (next) *next++='\0'; |
| 121 | memcpy(&(addrp[i]), numeric_to_addr(cp), sizeof(struct in6_addr)); |
| 122 | #if DEBUG |
| 123 | printf("addr str: %s\n", cp); |
| 124 | printf("addr ip6: %s\n", addr_to_numeric((numeric_to_addr(cp)))); |
| 125 | printf("addr [%d]: %s\n", i, addr_to_numeric(&(addrp[i]))); |
| 126 | #endif |
| 127 | } |
Jan Engelhardt | 1829ed4 | 2009-02-21 03:29:44 +0100 | [diff] [blame] | 128 | if (cp) xtables_error(PARAMETER_PROBLEM, "too many addresses specified"); |
András Kis-Szabó | fce8699 | 2002-04-29 13:48:46 +0000 | [diff] [blame] | 129 | |
| 130 | free(buffer); |
| 131 | |
| 132 | #if DEBUG |
| 133 | printf("addr nr: %d\n", i); |
| 134 | #endif |
| 135 | |
| 136 | return i; |
| 137 | } |
| 138 | |
Jan Engelhardt | 997045f | 2007-10-04 16:29:21 +0000 | [diff] [blame] | 139 | static void rt_init(struct xt_entry_match *m) |
András Kis-Szabó | a420416 | 2002-04-24 09:35:01 +0000 | [diff] [blame] | 140 | { |
| 141 | struct ip6t_rt *rtinfo = (struct ip6t_rt *)m->data; |
| 142 | |
András Kis-Szabó | a420416 | 2002-04-24 09:35:01 +0000 | [diff] [blame] | 143 | rtinfo->segsleft[1] = 0xFFFFFFFF; |
András Kis-Szabó | a420416 | 2002-04-24 09:35:01 +0000 | [diff] [blame] | 144 | } |
| 145 | |
Jan Engelhardt | 997045f | 2007-10-04 16:29:21 +0000 | [diff] [blame] | 146 | static int rt_parse(int c, char **argv, int invert, unsigned int *flags, |
| 147 | const void *entry, struct xt_entry_match **match) |
András Kis-Szabó | a420416 | 2002-04-24 09:35:01 +0000 | [diff] [blame] | 148 | { |
| 149 | struct ip6t_rt *rtinfo = (struct ip6t_rt *)(*match)->data; |
| 150 | |
| 151 | switch (c) { |
| 152 | case '1': |
| 153 | if (*flags & IP6T_RT_TYP) |
Jan Engelhardt | 1829ed4 | 2009-02-21 03:29:44 +0100 | [diff] [blame] | 154 | xtables_error(PARAMETER_PROBLEM, |
András Kis-Szabó | a420416 | 2002-04-24 09:35:01 +0000 | [diff] [blame] | 155 | "Only one `--rt-type' allowed"); |
Jan Engelhardt | bf97128 | 2009-11-03 19:55:11 +0100 | [diff] [blame] | 156 | xtables_check_inverse(optarg, &invert, &optind, 0, argv); |
Jan Engelhardt | bbe8386 | 2009-10-24 00:45:33 +0200 | [diff] [blame] | 157 | rtinfo->rt_type = parse_rt_num(optarg, "type"); |
András Kis-Szabó | a420416 | 2002-04-24 09:35:01 +0000 | [diff] [blame] | 158 | if (invert) |
| 159 | rtinfo->invflags |= IP6T_RT_INV_TYP; |
| 160 | rtinfo->flags |= IP6T_RT_TYP; |
| 161 | *flags |= IP6T_RT_TYP; |
| 162 | break; |
| 163 | case '2': |
| 164 | if (*flags & IP6T_RT_SGS) |
Jan Engelhardt | 1829ed4 | 2009-02-21 03:29:44 +0100 | [diff] [blame] | 165 | xtables_error(PARAMETER_PROBLEM, |
András Kis-Szabó | a420416 | 2002-04-24 09:35:01 +0000 | [diff] [blame] | 166 | "Only one `--rt-segsleft' allowed"); |
Jan Engelhardt | bf97128 | 2009-11-03 19:55:11 +0100 | [diff] [blame] | 167 | xtables_check_inverse(optarg, &invert, &optind, 0, argv); |
Jan Engelhardt | bbe8386 | 2009-10-24 00:45:33 +0200 | [diff] [blame] | 168 | parse_rt_segsleft(optarg, rtinfo->segsleft); |
András Kis-Szabó | a420416 | 2002-04-24 09:35:01 +0000 | [diff] [blame] | 169 | if (invert) |
| 170 | rtinfo->invflags |= IP6T_RT_INV_SGS; |
| 171 | rtinfo->flags |= IP6T_RT_SGS; |
| 172 | *flags |= IP6T_RT_SGS; |
| 173 | break; |
| 174 | case '3': |
| 175 | if (*flags & IP6T_RT_LEN) |
Jan Engelhardt | 1829ed4 | 2009-02-21 03:29:44 +0100 | [diff] [blame] | 176 | xtables_error(PARAMETER_PROBLEM, |
András Kis-Szabó | a420416 | 2002-04-24 09:35:01 +0000 | [diff] [blame] | 177 | "Only one `--rt-len' allowed"); |
Jan Engelhardt | bf97128 | 2009-11-03 19:55:11 +0100 | [diff] [blame] | 178 | xtables_check_inverse(optarg, &invert, &optind, 0, argv); |
Jan Engelhardt | bbe8386 | 2009-10-24 00:45:33 +0200 | [diff] [blame] | 179 | rtinfo->hdrlen = parse_rt_num(optarg, "length"); |
András Kis-Szabó | a420416 | 2002-04-24 09:35:01 +0000 | [diff] [blame] | 180 | if (invert) |
| 181 | rtinfo->invflags |= IP6T_RT_INV_LEN; |
| 182 | rtinfo->flags |= IP6T_RT_LEN; |
| 183 | *flags |= IP6T_RT_LEN; |
| 184 | break; |
| 185 | case '4': |
| 186 | if (*flags & IP6T_RT_RES) |
Jan Engelhardt | 1829ed4 | 2009-02-21 03:29:44 +0100 | [diff] [blame] | 187 | xtables_error(PARAMETER_PROBLEM, |
András Kis-Szabó | a420416 | 2002-04-24 09:35:01 +0000 | [diff] [blame] | 188 | "Only one `--rt-0-res' allowed"); |
| 189 | if ( !(*flags & IP6T_RT_TYP) || (rtinfo->rt_type != 0) || (rtinfo->invflags & IP6T_RT_INV_TYP) ) |
Jan Engelhardt | 1829ed4 | 2009-02-21 03:29:44 +0100 | [diff] [blame] | 190 | xtables_error(PARAMETER_PROBLEM, |
András Kis-Szabó | a420416 | 2002-04-24 09:35:01 +0000 | [diff] [blame] | 191 | "`--rt-type 0' required before `--rt-0-res'"); |
| 192 | rtinfo->flags |= IP6T_RT_RES; |
| 193 | *flags |= IP6T_RT_RES; |
| 194 | break; |
| 195 | case '5': |
| 196 | if (*flags & IP6T_RT_FST) |
Jan Engelhardt | 1829ed4 | 2009-02-21 03:29:44 +0100 | [diff] [blame] | 197 | xtables_error(PARAMETER_PROBLEM, |
András Kis-Szabó | a420416 | 2002-04-24 09:35:01 +0000 | [diff] [blame] | 198 | "Only one `--rt-0-addrs' allowed"); |
| 199 | if ( !(*flags & IP6T_RT_TYP) || (rtinfo->rt_type != 0) || (rtinfo->invflags & IP6T_RT_INV_TYP) ) |
Jan Engelhardt | 1829ed4 | 2009-02-21 03:29:44 +0100 | [diff] [blame] | 200 | xtables_error(PARAMETER_PROBLEM, |
András Kis-Szabó | fce8699 | 2002-04-29 13:48:46 +0000 | [diff] [blame] | 201 | "`--rt-type 0' required before `--rt-0-addrs'"); |
Jan Engelhardt | bf97128 | 2009-11-03 19:55:11 +0100 | [diff] [blame] | 202 | xtables_check_inverse(optarg, &invert, &optind, 0, argv); |
András Kis-Szabó | fce8699 | 2002-04-29 13:48:46 +0000 | [diff] [blame] | 203 | if (invert) |
Jan Engelhardt | 1829ed4 | 2009-02-21 03:29:44 +0100 | [diff] [blame] | 204 | xtables_error(PARAMETER_PROBLEM, |
András Kis-Szabó | fce8699 | 2002-04-29 13:48:46 +0000 | [diff] [blame] | 205 | " '!' not allowed with `--rt-0-addrs'"); |
Jan Engelhardt | bbe8386 | 2009-10-24 00:45:33 +0200 | [diff] [blame] | 206 | rtinfo->addrnr = parse_addresses(optarg, rtinfo->addrs); |
András Kis-Szabó | a420416 | 2002-04-24 09:35:01 +0000 | [diff] [blame] | 207 | rtinfo->flags |= IP6T_RT_FST; |
| 208 | *flags |= IP6T_RT_FST; |
| 209 | break; |
András Kis-Szabó | fce8699 | 2002-04-29 13:48:46 +0000 | [diff] [blame] | 210 | case '6': |
| 211 | if (*flags & IP6T_RT_FST_NSTRICT) |
Jan Engelhardt | 1829ed4 | 2009-02-21 03:29:44 +0100 | [diff] [blame] | 212 | xtables_error(PARAMETER_PROBLEM, |
András Kis-Szabó | fce8699 | 2002-04-29 13:48:46 +0000 | [diff] [blame] | 213 | "Only one `--rt-0-not-strict' allowed"); |
| 214 | if ( !(*flags & IP6T_RT_FST) ) |
Jan Engelhardt | 1829ed4 | 2009-02-21 03:29:44 +0100 | [diff] [blame] | 215 | xtables_error(PARAMETER_PROBLEM, |
András Kis-Szabó | fce8699 | 2002-04-29 13:48:46 +0000 | [diff] [blame] | 216 | "`--rt-0-addr ...' required before `--rt-0-not-strict'"); |
| 217 | rtinfo->flags |= IP6T_RT_FST_NSTRICT; |
| 218 | *flags |= IP6T_RT_FST_NSTRICT; |
| 219 | break; |
András Kis-Szabó | a420416 | 2002-04-24 09:35:01 +0000 | [diff] [blame] | 220 | } |
| 221 | |
| 222 | return 1; |
| 223 | } |
| 224 | |
András Kis-Szabó | a420416 | 2002-04-24 09:35:01 +0000 | [diff] [blame] | 225 | static void |
Jan Engelhardt | 7ac4052 | 2011-01-07 12:34:04 +0100 | [diff] [blame] | 226 | print_nums(const char *name, uint32_t min, uint32_t max, |
András Kis-Szabó | a420416 | 2002-04-24 09:35:01 +0000 | [diff] [blame] | 227 | int invert) |
| 228 | { |
| 229 | const char *inv = invert ? "!" : ""; |
| 230 | |
| 231 | if (min != 0 || max != 0xFFFFFFFF || invert) { |
Jan Engelhardt | 7386635 | 2010-12-18 02:04:59 +0100 | [diff] [blame] | 232 | printf(" %s", name); |
András Kis-Szabó | a420416 | 2002-04-24 09:35:01 +0000 | [diff] [blame] | 233 | if (min == max) { |
| 234 | printf(":%s", inv); |
| 235 | printf("%u", min); |
| 236 | } else { |
| 237 | printf("s:%s", inv); |
| 238 | printf("%u",min); |
| 239 | printf(":"); |
| 240 | printf("%u",max); |
| 241 | } |
András Kis-Szabó | a420416 | 2002-04-24 09:35:01 +0000 | [diff] [blame] | 242 | } |
| 243 | } |
| 244 | |
András Kis-Szabó | fce8699 | 2002-04-29 13:48:46 +0000 | [diff] [blame] | 245 | static void |
Jan Engelhardt | 7a236f4 | 2008-03-03 12:30:41 +0100 | [diff] [blame] | 246 | print_addresses(unsigned int addrnr, struct in6_addr *addrp) |
András Kis-Szabó | fce8699 | 2002-04-29 13:48:46 +0000 | [diff] [blame] | 247 | { |
| 248 | unsigned int i; |
| 249 | |
| 250 | for(i=0; i<addrnr; i++){ |
Jan Engelhardt | 7386635 | 2010-12-18 02:04:59 +0100 | [diff] [blame] | 251 | printf("%c%s", (i==0)?' ':',', addr_to_numeric(&(addrp[i]))); |
András Kis-Szabó | fce8699 | 2002-04-29 13:48:46 +0000 | [diff] [blame] | 252 | } |
| 253 | } |
| 254 | |
Jan Engelhardt | 997045f | 2007-10-04 16:29:21 +0000 | [diff] [blame] | 255 | static void rt_print(const void *ip, const struct xt_entry_match *match, |
| 256 | int numeric) |
András Kis-Szabó | a420416 | 2002-04-24 09:35:01 +0000 | [diff] [blame] | 257 | { |
| 258 | const struct ip6t_rt *rtinfo = (struct ip6t_rt *)match->data; |
| 259 | |
Jan Engelhardt | 7386635 | 2010-12-18 02:04:59 +0100 | [diff] [blame] | 260 | printf(" rt"); |
András Kis-Szabó | a420416 | 2002-04-24 09:35:01 +0000 | [diff] [blame] | 261 | if (rtinfo->flags & IP6T_RT_TYP) |
Jan Engelhardt | 7386635 | 2010-12-18 02:04:59 +0100 | [diff] [blame] | 262 | printf(" type:%s%d", rtinfo->invflags & IP6T_RT_INV_TYP ? "!" : "", |
András Kis-Szabó | a420416 | 2002-04-24 09:35:01 +0000 | [diff] [blame] | 263 | rtinfo->rt_type); |
| 264 | print_nums("segsleft", rtinfo->segsleft[0], rtinfo->segsleft[1], |
| 265 | rtinfo->invflags & IP6T_RT_INV_SGS); |
| 266 | if (rtinfo->flags & IP6T_RT_LEN) { |
Jan Engelhardt | 7386635 | 2010-12-18 02:04:59 +0100 | [diff] [blame] | 267 | printf(" length"); |
András Kis-Szabó | a420416 | 2002-04-24 09:35:01 +0000 | [diff] [blame] | 268 | printf(":%s", rtinfo->invflags & IP6T_RT_INV_LEN ? "!" : ""); |
| 269 | printf("%u", rtinfo->hdrlen); |
András Kis-Szabó | a420416 | 2002-04-24 09:35:01 +0000 | [diff] [blame] | 270 | } |
Jan Engelhardt | 7386635 | 2010-12-18 02:04:59 +0100 | [diff] [blame] | 271 | if (rtinfo->flags & IP6T_RT_RES) printf(" reserved"); |
| 272 | if (rtinfo->flags & IP6T_RT_FST) printf(" 0-addrs"); |
Fabrice MARIE | ae31bb6 | 2002-06-14 07:38:16 +0000 | [diff] [blame] | 273 | print_addresses(rtinfo->addrnr, (struct in6_addr *)rtinfo->addrs); |
Jan Engelhardt | 7386635 | 2010-12-18 02:04:59 +0100 | [diff] [blame] | 274 | if (rtinfo->flags & IP6T_RT_FST_NSTRICT) printf(" 0-not-strict"); |
András Kis-Szabó | a420416 | 2002-04-24 09:35:01 +0000 | [diff] [blame] | 275 | if (rtinfo->invflags & ~IP6T_RT_INV_MASK) |
Jan Engelhardt | 7386635 | 2010-12-18 02:04:59 +0100 | [diff] [blame] | 276 | printf(" Unknown invflags: 0x%X", |
András Kis-Szabó | a420416 | 2002-04-24 09:35:01 +0000 | [diff] [blame] | 277 | rtinfo->invflags & ~IP6T_RT_INV_MASK); |
| 278 | } |
| 279 | |
Jan Engelhardt | 997045f | 2007-10-04 16:29:21 +0000 | [diff] [blame] | 280 | static void rt_save(const void *ip, const struct xt_entry_match *match) |
András Kis-Szabó | a420416 | 2002-04-24 09:35:01 +0000 | [diff] [blame] | 281 | { |
| 282 | const struct ip6t_rt *rtinfo = (struct ip6t_rt *)match->data; |
| 283 | |
| 284 | if (rtinfo->flags & IP6T_RT_TYP) { |
Jan Engelhardt | 7386635 | 2010-12-18 02:04:59 +0100 | [diff] [blame] | 285 | printf("%s --rt-type %u", |
| 286 | (rtinfo->invflags & IP6T_RT_INV_TYP) ? " !" : "", |
András Kis-Szabó | a420416 | 2002-04-24 09:35:01 +0000 | [diff] [blame] | 287 | rtinfo->rt_type); |
| 288 | } |
| 289 | |
| 290 | if (!(rtinfo->segsleft[0] == 0 |
| 291 | && rtinfo->segsleft[1] == 0xFFFFFFFF)) { |
Jan Engelhardt | 7386635 | 2010-12-18 02:04:59 +0100 | [diff] [blame] | 292 | printf("%s --rt-segsleft ", |
| 293 | (rtinfo->invflags & IP6T_RT_INV_SGS) ? " !" : ""); |
András Kis-Szabó | a420416 | 2002-04-24 09:35:01 +0000 | [diff] [blame] | 294 | if (rtinfo->segsleft[0] |
| 295 | != rtinfo->segsleft[1]) |
Jan Engelhardt | 7386635 | 2010-12-18 02:04:59 +0100 | [diff] [blame] | 296 | printf("%u:%u", |
András Kis-Szabó | a420416 | 2002-04-24 09:35:01 +0000 | [diff] [blame] | 297 | rtinfo->segsleft[0], |
| 298 | rtinfo->segsleft[1]); |
| 299 | else |
Jan Engelhardt | 7386635 | 2010-12-18 02:04:59 +0100 | [diff] [blame] | 300 | printf("%u", |
András Kis-Szabó | a420416 | 2002-04-24 09:35:01 +0000 | [diff] [blame] | 301 | rtinfo->segsleft[0]); |
| 302 | } |
| 303 | |
| 304 | if (rtinfo->flags & IP6T_RT_LEN) { |
Jan Engelhardt | 7386635 | 2010-12-18 02:04:59 +0100 | [diff] [blame] | 305 | printf("%s --rt-len %u", |
| 306 | (rtinfo->invflags & IP6T_RT_INV_LEN) ? " !" : "", |
András Kis-Szabó | a420416 | 2002-04-24 09:35:01 +0000 | [diff] [blame] | 307 | rtinfo->hdrlen); |
| 308 | } |
| 309 | |
Jan Engelhardt | 7386635 | 2010-12-18 02:04:59 +0100 | [diff] [blame] | 310 | if (rtinfo->flags & IP6T_RT_RES) printf(" --rt-0-res"); |
| 311 | if (rtinfo->flags & IP6T_RT_FST) printf(" --rt-0-addrs"); |
Fabrice MARIE | ae31bb6 | 2002-06-14 07:38:16 +0000 | [diff] [blame] | 312 | print_addresses(rtinfo->addrnr, (struct in6_addr *)rtinfo->addrs); |
Jan Engelhardt | 7386635 | 2010-12-18 02:04:59 +0100 | [diff] [blame] | 313 | if (rtinfo->flags & IP6T_RT_FST_NSTRICT) printf(" --rt-0-not-strict"); |
András Kis-Szabó | a420416 | 2002-04-24 09:35:01 +0000 | [diff] [blame] | 314 | |
| 315 | } |
| 316 | |
Jan Engelhardt | 8b7c64d | 2008-04-15 11:48:25 +0200 | [diff] [blame] | 317 | static struct xtables_match rt_mt6_reg = { |
Harald Welte | 02aa733 | 2005-02-01 15:38:20 +0000 | [diff] [blame] | 318 | .name = "rt", |
Jan Engelhardt | 8b7c64d | 2008-04-15 11:48:25 +0200 | [diff] [blame] | 319 | .version = XTABLES_VERSION, |
Jan Engelhardt | 03d9948 | 2008-11-18 12:27:54 +0100 | [diff] [blame] | 320 | .family = NFPROTO_IPV6, |
Jan Engelhardt | 8b7c64d | 2008-04-15 11:48:25 +0200 | [diff] [blame] | 321 | .size = XT_ALIGN(sizeof(struct ip6t_rt)), |
| 322 | .userspacesize = XT_ALIGN(sizeof(struct ip6t_rt)), |
Jan Engelhardt | 997045f | 2007-10-04 16:29:21 +0000 | [diff] [blame] | 323 | .help = rt_help, |
| 324 | .init = rt_init, |
| 325 | .parse = rt_parse, |
| 326 | .print = rt_print, |
| 327 | .save = rt_save, |
| 328 | .extra_opts = rt_opts, |
András Kis-Szabó | a420416 | 2002-04-24 09:35:01 +0000 | [diff] [blame] | 329 | }; |
| 330 | |
| 331 | void |
| 332 | _init(void) |
| 333 | { |
Jan Engelhardt | 8b7c64d | 2008-04-15 11:48:25 +0200 | [diff] [blame] | 334 | xtables_register_match(&rt_mt6_reg); |
András Kis-Szabó | a420416 | 2002-04-24 09:35:01 +0000 | [diff] [blame] | 335 | } |