Jan Engelhardt | ce4b795 | 2011-05-07 14:39:08 +0200 | [diff] [blame] | 1 | #include <stdint.h> |
Joszef Kadlecsik | 9cb6615 | 2003-04-23 13:27:09 +0000 | [diff] [blame] | 2 | #include <stdio.h> |
Joszef Kadlecsik | 9cb6615 | 2003-04-23 13:27:09 +0000 | [diff] [blame] | 3 | #include <string.h> |
| 4 | #include <stdlib.h> |
Jan Engelhardt | fc11b0b | 2008-01-20 13:43:49 +0000 | [diff] [blame] | 5 | #include <xtables.h> |
| 6 | #include <linux/netfilter.h> |
| 7 | #include <linux/netfilter/xt_iprange.h> |
Jan Engelhardt | 350661a | 2010-01-31 22:42:52 +0100 | [diff] [blame] | 8 | |
| 9 | struct ipt_iprange { |
| 10 | /* Inclusive: network order. */ |
| 11 | __be32 min_ip, max_ip; |
| 12 | }; |
| 13 | |
| 14 | struct ipt_iprange_info { |
| 15 | struct ipt_iprange src; |
| 16 | struct ipt_iprange dst; |
| 17 | |
| 18 | /* Flags from above */ |
Jan Engelhardt | 7ac4052 | 2011-01-07 12:34:04 +0100 | [diff] [blame] | 19 | uint8_t flags; |
Jan Engelhardt | 350661a | 2010-01-31 22:42:52 +0100 | [diff] [blame] | 20 | }; |
Joszef Kadlecsik | 9cb6615 | 2003-04-23 13:27:09 +0000 | [diff] [blame] | 21 | |
Jan Engelhardt | fc11b0b | 2008-01-20 13:43:49 +0000 | [diff] [blame] | 22 | enum { |
Jan Engelhardt | ce4b795 | 2011-05-07 14:39:08 +0200 | [diff] [blame] | 23 | O_SRC_RANGE = 0, |
| 24 | O_DST_RANGE, |
Jan Engelhardt | fc11b0b | 2008-01-20 13:43:49 +0000 | [diff] [blame] | 25 | }; |
| 26 | |
Jan Engelhardt | 41daaa0 | 2008-01-20 13:42:43 +0000 | [diff] [blame] | 27 | static void iprange_mt_help(void) |
Joszef Kadlecsik | 9cb6615 | 2003-04-23 13:27:09 +0000 | [diff] [blame] | 28 | { |
| 29 | printf( |
Jan Engelhardt | 41daaa0 | 2008-01-20 13:42:43 +0000 | [diff] [blame] | 30 | "iprange match options:\n" |
Jan Engelhardt | a10a12a | 2009-09-18 09:59:26 +0200 | [diff] [blame] | 31 | "[!] --src-range ip[-ip] Match source IP in the specified range\n" |
| 32 | "[!] --dst-range ip[-ip] Match destination IP in the specified range\n"); |
Joszef Kadlecsik | 9cb6615 | 2003-04-23 13:27:09 +0000 | [diff] [blame] | 33 | } |
| 34 | |
Jan Engelhardt | ce4b795 | 2011-05-07 14:39:08 +0200 | [diff] [blame] | 35 | static const struct xt_option_entry iprange_mt_opts[] = { |
| 36 | {.name = "src-range", .id = O_SRC_RANGE, .type = XTTYPE_STRING, |
| 37 | .flags = XTOPT_INVERT}, |
| 38 | {.name = "dst-range", .id = O_DST_RANGE, .type = XTTYPE_STRING, |
| 39 | .flags = XTOPT_INVERT}, |
| 40 | XTOPT_TABLEEND, |
Joszef Kadlecsik | 9cb6615 | 2003-04-23 13:27:09 +0000 | [diff] [blame] | 41 | }; |
| 42 | |
Jan Engelhardt | 648a7ba | 2009-09-18 13:01:05 +0200 | [diff] [blame] | 43 | static void |
| 44 | iprange_parse_spec(const char *from, const char *to, union nf_inet_addr *range, |
| 45 | uint8_t family, const char *optname) |
Joszef Kadlecsik | 9cb6615 | 2003-04-23 13:27:09 +0000 | [diff] [blame] | 46 | { |
Jan Engelhardt | 7fa7329 | 2009-09-18 13:07:09 +0200 | [diff] [blame] | 47 | const char *spec[2] = {from, to}; |
Jan Engelhardt | a10a12a | 2009-09-18 09:59:26 +0200 | [diff] [blame] | 48 | struct in6_addr *ia6; |
| 49 | struct in_addr *ia4; |
Jan Engelhardt | 7fa7329 | 2009-09-18 13:07:09 +0200 | [diff] [blame] | 50 | unsigned int i; |
Joszef Kadlecsik | 9cb6615 | 2003-04-23 13:27:09 +0000 | [diff] [blame] | 51 | |
Jan Engelhardt | a10a12a | 2009-09-18 09:59:26 +0200 | [diff] [blame] | 52 | memset(range, 0, sizeof(union nf_inet_addr) * 2); |
Jan Engelhardt | 41daaa0 | 2008-01-20 13:42:43 +0000 | [diff] [blame] | 53 | |
Jan Engelhardt | a10a12a | 2009-09-18 09:59:26 +0200 | [diff] [blame] | 54 | if (family == NFPROTO_IPV6) { |
Jan Engelhardt | 7fa7329 | 2009-09-18 13:07:09 +0200 | [diff] [blame] | 55 | for (i = 0; i < ARRAY_SIZE(spec); ++i) { |
| 56 | ia6 = xtables_numeric_to_ip6addr(spec[i]); |
| 57 | if (ia6 == NULL) |
| 58 | xtables_param_act(XTF_BAD_VALUE, "iprange", |
| 59 | optname, spec[i]); |
| 60 | range[i].in6 = *ia6; |
| 61 | } |
Jan Engelhardt | 41daaa0 | 2008-01-20 13:42:43 +0000 | [diff] [blame] | 62 | } else { |
Jan Engelhardt | 7fa7329 | 2009-09-18 13:07:09 +0200 | [diff] [blame] | 63 | for (i = 0; i < ARRAY_SIZE(spec); ++i) { |
| 64 | ia4 = xtables_numeric_to_ipaddr(spec[i]); |
| 65 | if (ia4 == NULL) |
| 66 | xtables_param_act(XTF_BAD_VALUE, "iprange", |
| 67 | optname, spec[i]); |
| 68 | range[i].in = *ia4; |
| 69 | } |
Jan Engelhardt | 41daaa0 | 2008-01-20 13:42:43 +0000 | [diff] [blame] | 70 | } |
Joszef Kadlecsik | 9cb6615 | 2003-04-23 13:27:09 +0000 | [diff] [blame] | 71 | } |
| 72 | |
Jan Engelhardt | ce4b795 | 2011-05-07 14:39:08 +0200 | [diff] [blame] | 73 | static void iprange_parse_range(const char *oarg, union nf_inet_addr *range, |
Jan Engelhardt | 7ac4052 | 2011-01-07 12:34:04 +0100 | [diff] [blame] | 74 | uint8_t family, const char *optname) |
Jan Engelhardt | 648a7ba | 2009-09-18 13:01:05 +0200 | [diff] [blame] | 75 | { |
Jan Engelhardt | ce4b795 | 2011-05-07 14:39:08 +0200 | [diff] [blame] | 76 | char *arg = strdup(oarg); |
Jan Engelhardt | 648a7ba | 2009-09-18 13:01:05 +0200 | [diff] [blame] | 77 | char *dash; |
| 78 | |
Jan Engelhardt | ce4b795 | 2011-05-07 14:39:08 +0200 | [diff] [blame] | 79 | if (arg == NULL) |
| 80 | xtables_error(RESOURCE_PROBLEM, "strdup"); |
Jan Engelhardt | 648a7ba | 2009-09-18 13:01:05 +0200 | [diff] [blame] | 81 | dash = strchr(arg, '-'); |
| 82 | if (dash == NULL) { |
| 83 | iprange_parse_spec(arg, arg, range, family, optname); |
Jan Engelhardt | ce4b795 | 2011-05-07 14:39:08 +0200 | [diff] [blame] | 84 | free(arg); |
Jan Engelhardt | 648a7ba | 2009-09-18 13:01:05 +0200 | [diff] [blame] | 85 | return; |
| 86 | } |
| 87 | |
| 88 | *dash = '\0'; |
| 89 | iprange_parse_spec(arg, dash + 1, range, family, optname); |
| 90 | if (memcmp(&range[0], &range[1], sizeof(*range)) > 0) |
| 91 | fprintf(stderr, "xt_iprange: range %s-%s is reversed and " |
| 92 | "will never match\n", arg, dash + 1); |
Jan Engelhardt | ce4b795 | 2011-05-07 14:39:08 +0200 | [diff] [blame] | 93 | free(arg); |
Jan Engelhardt | 648a7ba | 2009-09-18 13:01:05 +0200 | [diff] [blame] | 94 | } |
| 95 | |
Jan Engelhardt | ce4b795 | 2011-05-07 14:39:08 +0200 | [diff] [blame] | 96 | static void iprange_parse(struct xt_option_call *cb) |
Joszef Kadlecsik | 9cb6615 | 2003-04-23 13:27:09 +0000 | [diff] [blame] | 97 | { |
Jan Engelhardt | ce4b795 | 2011-05-07 14:39:08 +0200 | [diff] [blame] | 98 | struct ipt_iprange_info *info = cb->data; |
Jan Engelhardt | a10a12a | 2009-09-18 09:59:26 +0200 | [diff] [blame] | 99 | union nf_inet_addr range[2]; |
Joszef Kadlecsik | 9cb6615 | 2003-04-23 13:27:09 +0000 | [diff] [blame] | 100 | |
Jan Engelhardt | ce4b795 | 2011-05-07 14:39:08 +0200 | [diff] [blame] | 101 | xtables_option_parse(cb); |
| 102 | switch (cb->entry->id) { |
| 103 | case O_SRC_RANGE: |
Joszef Kadlecsik | 9cb6615 | 2003-04-23 13:27:09 +0000 | [diff] [blame] | 104 | info->flags |= IPRANGE_SRC; |
Jan Engelhardt | ce4b795 | 2011-05-07 14:39:08 +0200 | [diff] [blame] | 105 | if (cb->invert) |
Joszef Kadlecsik | 9cb6615 | 2003-04-23 13:27:09 +0000 | [diff] [blame] | 106 | info->flags |= IPRANGE_SRC_INV; |
Jan Engelhardt | ce4b795 | 2011-05-07 14:39:08 +0200 | [diff] [blame] | 107 | iprange_parse_range(cb->arg, range, NFPROTO_IPV4, "--src-range"); |
Vincent Bernat | ada4ff6 | 2010-04-21 14:48:26 +0200 | [diff] [blame] | 108 | info->src.min_ip = range[0].ip; |
| 109 | info->src.max_ip = range[1].ip; |
Joszef Kadlecsik | 9cb6615 | 2003-04-23 13:27:09 +0000 | [diff] [blame] | 110 | break; |
Jan Engelhardt | ce4b795 | 2011-05-07 14:39:08 +0200 | [diff] [blame] | 111 | case O_DST_RANGE: |
Joszef Kadlecsik | 9cb6615 | 2003-04-23 13:27:09 +0000 | [diff] [blame] | 112 | info->flags |= IPRANGE_DST; |
Jan Engelhardt | ce4b795 | 2011-05-07 14:39:08 +0200 | [diff] [blame] | 113 | if (cb->invert) |
Joszef Kadlecsik | 9cb6615 | 2003-04-23 13:27:09 +0000 | [diff] [blame] | 114 | info->flags |= IPRANGE_DST_INV; |
Jan Engelhardt | ce4b795 | 2011-05-07 14:39:08 +0200 | [diff] [blame] | 115 | iprange_parse_range(cb->arg, range, NFPROTO_IPV4, "--dst-range"); |
Vincent Bernat | ada4ff6 | 2010-04-21 14:48:26 +0200 | [diff] [blame] | 116 | info->dst.min_ip = range[0].ip; |
| 117 | info->dst.max_ip = range[1].ip; |
Joszef Kadlecsik | 9cb6615 | 2003-04-23 13:27:09 +0000 | [diff] [blame] | 118 | break; |
Joszef Kadlecsik | 9cb6615 | 2003-04-23 13:27:09 +0000 | [diff] [blame] | 119 | } |
Joszef Kadlecsik | 9cb6615 | 2003-04-23 13:27:09 +0000 | [diff] [blame] | 120 | } |
| 121 | |
Jan Engelhardt | ce4b795 | 2011-05-07 14:39:08 +0200 | [diff] [blame] | 122 | static void iprange_mt_parse(struct xt_option_call *cb, uint8_t nfproto) |
Jan Engelhardt | fc11b0b | 2008-01-20 13:43:49 +0000 | [diff] [blame] | 123 | { |
Jan Engelhardt | ce4b795 | 2011-05-07 14:39:08 +0200 | [diff] [blame] | 124 | struct xt_iprange_mtinfo *info = cb->data; |
Jan Engelhardt | fc11b0b | 2008-01-20 13:43:49 +0000 | [diff] [blame] | 125 | |
Jan Engelhardt | ce4b795 | 2011-05-07 14:39:08 +0200 | [diff] [blame] | 126 | xtables_option_parse(cb); |
| 127 | switch (cb->entry->id) { |
| 128 | case O_SRC_RANGE: |
| 129 | iprange_parse_range(cb->arg, &info->src_min, nfproto, |
Jan Engelhardt | a10a12a | 2009-09-18 09:59:26 +0200 | [diff] [blame] | 130 | "--src-range"); |
Jan Engelhardt | 6a0cd58 | 2008-06-13 17:59:29 +0200 | [diff] [blame] | 131 | info->flags |= IPRANGE_SRC; |
Jan Engelhardt | ce4b795 | 2011-05-07 14:39:08 +0200 | [diff] [blame] | 132 | if (cb->invert) |
Jan Engelhardt | 6a0cd58 | 2008-06-13 17:59:29 +0200 | [diff] [blame] | 133 | info->flags |= IPRANGE_SRC_INV; |
Jan Engelhardt | ce4b795 | 2011-05-07 14:39:08 +0200 | [diff] [blame] | 134 | break; |
| 135 | case O_DST_RANGE: |
| 136 | iprange_parse_range(cb->arg, &info->dst_min, nfproto, |
Jan Engelhardt | a10a12a | 2009-09-18 09:59:26 +0200 | [diff] [blame] | 137 | "--dst-range"); |
Jan Engelhardt | 6a0cd58 | 2008-06-13 17:59:29 +0200 | [diff] [blame] | 138 | info->flags |= IPRANGE_DST; |
Jan Engelhardt | ce4b795 | 2011-05-07 14:39:08 +0200 | [diff] [blame] | 139 | if (cb->invert) |
Jan Engelhardt | 6a0cd58 | 2008-06-13 17:59:29 +0200 | [diff] [blame] | 140 | info->flags |= IPRANGE_DST_INV; |
Jan Engelhardt | ce4b795 | 2011-05-07 14:39:08 +0200 | [diff] [blame] | 141 | break; |
Jan Engelhardt | fc11b0b | 2008-01-20 13:43:49 +0000 | [diff] [blame] | 142 | } |
Jan Engelhardt | fc11b0b | 2008-01-20 13:43:49 +0000 | [diff] [blame] | 143 | } |
| 144 | |
Jan Engelhardt | ce4b795 | 2011-05-07 14:39:08 +0200 | [diff] [blame] | 145 | static void iprange_mt4_parse(struct xt_option_call *cb) |
Jan Engelhardt | fc11b0b | 2008-01-20 13:43:49 +0000 | [diff] [blame] | 146 | { |
Jan Engelhardt | ce4b795 | 2011-05-07 14:39:08 +0200 | [diff] [blame] | 147 | iprange_mt_parse(cb, NFPROTO_IPV4); |
Jan Engelhardt | fc11b0b | 2008-01-20 13:43:49 +0000 | [diff] [blame] | 148 | } |
| 149 | |
Jan Engelhardt | ce4b795 | 2011-05-07 14:39:08 +0200 | [diff] [blame] | 150 | static void iprange_mt6_parse(struct xt_option_call *cb) |
Joszef Kadlecsik | 9cb6615 | 2003-04-23 13:27:09 +0000 | [diff] [blame] | 151 | { |
Jan Engelhardt | ce4b795 | 2011-05-07 14:39:08 +0200 | [diff] [blame] | 152 | iprange_mt_parse(cb, NFPROTO_IPV6); |
| 153 | } |
| 154 | |
| 155 | static void iprange_mt_check(struct xt_fcheck_call *cb) |
| 156 | { |
| 157 | if (cb->xflags == 0) |
Jan Engelhardt | 1829ed4 | 2009-02-21 03:29:44 +0100 | [diff] [blame] | 158 | xtables_error(PARAMETER_PROBLEM, |
Joszef Kadlecsik | 9cb6615 | 2003-04-23 13:27:09 +0000 | [diff] [blame] | 159 | "iprange match: You must specify `--src-range' or `--dst-range'"); |
| 160 | } |
| 161 | |
| 162 | static void |
| 163 | print_iprange(const struct ipt_iprange *range) |
| 164 | { |
| 165 | const unsigned char *byte_min, *byte_max; |
| 166 | |
Jan Engelhardt | 41daaa0 | 2008-01-20 13:42:43 +0000 | [diff] [blame] | 167 | byte_min = (const unsigned char *)&range->min_ip; |
| 168 | byte_max = (const unsigned char *)&range->max_ip; |
Jan Engelhardt | 7386635 | 2010-12-18 02:04:59 +0100 | [diff] [blame] | 169 | printf(" %u.%u.%u.%u-%u.%u.%u.%u", |
Joszef Kadlecsik | 9cb6615 | 2003-04-23 13:27:09 +0000 | [diff] [blame] | 170 | byte_min[0], byte_min[1], byte_min[2], byte_min[3], |
| 171 | byte_max[0], byte_max[1], byte_max[2], byte_max[3]); |
| 172 | } |
| 173 | |
Jan Engelhardt | 59d1640 | 2007-10-04 16:28:39 +0000 | [diff] [blame] | 174 | static void iprange_print(const void *ip, const struct xt_entry_match *match, |
| 175 | int numeric) |
Joszef Kadlecsik | 9cb6615 | 2003-04-23 13:27:09 +0000 | [diff] [blame] | 176 | { |
Jan Engelhardt | 41daaa0 | 2008-01-20 13:42:43 +0000 | [diff] [blame] | 177 | const struct ipt_iprange_info *info = (const void *)match->data; |
Joszef Kadlecsik | 9cb6615 | 2003-04-23 13:27:09 +0000 | [diff] [blame] | 178 | |
| 179 | if (info->flags & IPRANGE_SRC) { |
Jan Engelhardt | 7386635 | 2010-12-18 02:04:59 +0100 | [diff] [blame] | 180 | printf(" source IP range"); |
Joszef Kadlecsik | 9cb6615 | 2003-04-23 13:27:09 +0000 | [diff] [blame] | 181 | if (info->flags & IPRANGE_SRC_INV) |
Jan Engelhardt | 7386635 | 2010-12-18 02:04:59 +0100 | [diff] [blame] | 182 | printf(" !"); |
Joszef Kadlecsik | 9cb6615 | 2003-04-23 13:27:09 +0000 | [diff] [blame] | 183 | print_iprange(&info->src); |
| 184 | } |
| 185 | if (info->flags & IPRANGE_DST) { |
Jan Engelhardt | 7386635 | 2010-12-18 02:04:59 +0100 | [diff] [blame] | 186 | printf(" destination IP range"); |
Joszef Kadlecsik | 9cb6615 | 2003-04-23 13:27:09 +0000 | [diff] [blame] | 187 | if (info->flags & IPRANGE_DST_INV) |
Jan Engelhardt | 7386635 | 2010-12-18 02:04:59 +0100 | [diff] [blame] | 188 | printf(" !"); |
Joszef Kadlecsik | 9cb6615 | 2003-04-23 13:27:09 +0000 | [diff] [blame] | 189 | print_iprange(&info->dst); |
| 190 | } |
| 191 | } |
| 192 | |
Jan Engelhardt | fc11b0b | 2008-01-20 13:43:49 +0000 | [diff] [blame] | 193 | static void |
| 194 | iprange_mt4_print(const void *ip, const struct xt_entry_match *match, |
| 195 | int numeric) |
| 196 | { |
| 197 | const struct xt_iprange_mtinfo *info = (const void *)match->data; |
| 198 | |
| 199 | if (info->flags & IPRANGE_SRC) { |
Jan Engelhardt | 7386635 | 2010-12-18 02:04:59 +0100 | [diff] [blame] | 200 | printf(" source IP range"); |
Jan Engelhardt | fc11b0b | 2008-01-20 13:43:49 +0000 | [diff] [blame] | 201 | if (info->flags & IPRANGE_SRC_INV) |
Jan Engelhardt | 7386635 | 2010-12-18 02:04:59 +0100 | [diff] [blame] | 202 | printf(" !"); |
Jan Engelhardt | fc11b0b | 2008-01-20 13:43:49 +0000 | [diff] [blame] | 203 | /* |
| 204 | * ipaddr_to_numeric() uses a static buffer, so cannot |
| 205 | * combine the printf() calls. |
| 206 | */ |
Jan Engelhardt | 7386635 | 2010-12-18 02:04:59 +0100 | [diff] [blame] | 207 | printf(" %s", xtables_ipaddr_to_numeric(&info->src_min.in)); |
| 208 | printf("-%s", xtables_ipaddr_to_numeric(&info->src_max.in)); |
Jan Engelhardt | fc11b0b | 2008-01-20 13:43:49 +0000 | [diff] [blame] | 209 | } |
| 210 | if (info->flags & IPRANGE_DST) { |
Jan Engelhardt | 7386635 | 2010-12-18 02:04:59 +0100 | [diff] [blame] | 211 | printf(" destination IP range"); |
Jan Engelhardt | fc11b0b | 2008-01-20 13:43:49 +0000 | [diff] [blame] | 212 | if (info->flags & IPRANGE_DST_INV) |
Jan Engelhardt | 7386635 | 2010-12-18 02:04:59 +0100 | [diff] [blame] | 213 | printf(" !"); |
| 214 | printf(" %s", xtables_ipaddr_to_numeric(&info->dst_min.in)); |
| 215 | printf("-%s", xtables_ipaddr_to_numeric(&info->dst_max.in)); |
Jan Engelhardt | fc11b0b | 2008-01-20 13:43:49 +0000 | [diff] [blame] | 216 | } |
| 217 | } |
| 218 | |
| 219 | static void |
| 220 | iprange_mt6_print(const void *ip, const struct xt_entry_match *match, |
| 221 | int numeric) |
| 222 | { |
| 223 | const struct xt_iprange_mtinfo *info = (const void *)match->data; |
| 224 | |
| 225 | if (info->flags & IPRANGE_SRC) { |
Jan Engelhardt | 7386635 | 2010-12-18 02:04:59 +0100 | [diff] [blame] | 226 | printf(" source IP range"); |
Jan Engelhardt | fc11b0b | 2008-01-20 13:43:49 +0000 | [diff] [blame] | 227 | if (info->flags & IPRANGE_SRC_INV) |
Jan Engelhardt | 7386635 | 2010-12-18 02:04:59 +0100 | [diff] [blame] | 228 | printf(" !"); |
Jan Engelhardt | fc11b0b | 2008-01-20 13:43:49 +0000 | [diff] [blame] | 229 | /* |
| 230 | * ipaddr_to_numeric() uses a static buffer, so cannot |
| 231 | * combine the printf() calls. |
| 232 | */ |
Jan Engelhardt | 7386635 | 2010-12-18 02:04:59 +0100 | [diff] [blame] | 233 | printf(" %s", xtables_ip6addr_to_numeric(&info->src_min.in6)); |
| 234 | printf("-%s", xtables_ip6addr_to_numeric(&info->src_max.in6)); |
Jan Engelhardt | fc11b0b | 2008-01-20 13:43:49 +0000 | [diff] [blame] | 235 | } |
| 236 | if (info->flags & IPRANGE_DST) { |
Jan Engelhardt | 7386635 | 2010-12-18 02:04:59 +0100 | [diff] [blame] | 237 | printf(" destination IP range"); |
Jan Engelhardt | fc11b0b | 2008-01-20 13:43:49 +0000 | [diff] [blame] | 238 | if (info->flags & IPRANGE_DST_INV) |
Jan Engelhardt | 7386635 | 2010-12-18 02:04:59 +0100 | [diff] [blame] | 239 | printf(" !"); |
| 240 | printf(" %s", xtables_ip6addr_to_numeric(&info->dst_min.in6)); |
| 241 | printf("-%s", xtables_ip6addr_to_numeric(&info->dst_max.in6)); |
Jan Engelhardt | fc11b0b | 2008-01-20 13:43:49 +0000 | [diff] [blame] | 242 | } |
| 243 | } |
| 244 | |
Jan Engelhardt | 59d1640 | 2007-10-04 16:28:39 +0000 | [diff] [blame] | 245 | static void iprange_save(const void *ip, const struct xt_entry_match *match) |
Joszef Kadlecsik | 9cb6615 | 2003-04-23 13:27:09 +0000 | [diff] [blame] | 246 | { |
Jan Engelhardt | 41daaa0 | 2008-01-20 13:42:43 +0000 | [diff] [blame] | 247 | const struct ipt_iprange_info *info = (const void *)match->data; |
Joszef Kadlecsik | 9cb6615 | 2003-04-23 13:27:09 +0000 | [diff] [blame] | 248 | |
| 249 | if (info->flags & IPRANGE_SRC) { |
| 250 | if (info->flags & IPRANGE_SRC_INV) |
Jan Engelhardt | 7386635 | 2010-12-18 02:04:59 +0100 | [diff] [blame] | 251 | printf(" !"); |
| 252 | printf(" --src-range"); |
Joszef Kadlecsik | 9cb6615 | 2003-04-23 13:27:09 +0000 | [diff] [blame] | 253 | print_iprange(&info->src); |
Joszef Kadlecsik | 9cb6615 | 2003-04-23 13:27:09 +0000 | [diff] [blame] | 254 | } |
| 255 | if (info->flags & IPRANGE_DST) { |
| 256 | if (info->flags & IPRANGE_DST_INV) |
Jan Engelhardt | 7386635 | 2010-12-18 02:04:59 +0100 | [diff] [blame] | 257 | printf(" !"); |
| 258 | printf(" --dst-range"); |
Joszef Kadlecsik | 9cb6615 | 2003-04-23 13:27:09 +0000 | [diff] [blame] | 259 | print_iprange(&info->dst); |
| 260 | } |
| 261 | } |
| 262 | |
Jan Engelhardt | fc11b0b | 2008-01-20 13:43:49 +0000 | [diff] [blame] | 263 | static void iprange_mt4_save(const void *ip, const struct xt_entry_match *match) |
| 264 | { |
| 265 | const struct xt_iprange_mtinfo *info = (const void *)match->data; |
| 266 | |
| 267 | if (info->flags & IPRANGE_SRC) { |
| 268 | if (info->flags & IPRANGE_SRC_INV) |
Jan Engelhardt | 7386635 | 2010-12-18 02:04:59 +0100 | [diff] [blame] | 269 | printf(" !"); |
| 270 | printf(" --src-range %s", xtables_ipaddr_to_numeric(&info->src_min.in)); |
| 271 | printf("-%s", xtables_ipaddr_to_numeric(&info->src_max.in)); |
Jan Engelhardt | fc11b0b | 2008-01-20 13:43:49 +0000 | [diff] [blame] | 272 | } |
| 273 | if (info->flags & IPRANGE_DST) { |
| 274 | if (info->flags & IPRANGE_DST_INV) |
Jan Engelhardt | 7386635 | 2010-12-18 02:04:59 +0100 | [diff] [blame] | 275 | printf(" !"); |
| 276 | printf(" --dst-range %s", xtables_ipaddr_to_numeric(&info->dst_min.in)); |
| 277 | printf("-%s", xtables_ipaddr_to_numeric(&info->dst_max.in)); |
Jan Engelhardt | fc11b0b | 2008-01-20 13:43:49 +0000 | [diff] [blame] | 278 | } |
| 279 | } |
| 280 | |
| 281 | static void iprange_mt6_save(const void *ip, const struct xt_entry_match *match) |
| 282 | { |
| 283 | const struct xt_iprange_mtinfo *info = (const void *)match->data; |
| 284 | |
| 285 | if (info->flags & IPRANGE_SRC) { |
| 286 | if (info->flags & IPRANGE_SRC_INV) |
Jan Engelhardt | 7386635 | 2010-12-18 02:04:59 +0100 | [diff] [blame] | 287 | printf(" !"); |
| 288 | printf(" --src-range %s", xtables_ip6addr_to_numeric(&info->src_min.in6)); |
| 289 | printf("-%s", xtables_ip6addr_to_numeric(&info->src_max.in6)); |
Jan Engelhardt | fc11b0b | 2008-01-20 13:43:49 +0000 | [diff] [blame] | 290 | } |
| 291 | if (info->flags & IPRANGE_DST) { |
| 292 | if (info->flags & IPRANGE_DST_INV) |
Jan Engelhardt | 7386635 | 2010-12-18 02:04:59 +0100 | [diff] [blame] | 293 | printf(" !"); |
| 294 | printf(" --dst-range %s", xtables_ip6addr_to_numeric(&info->dst_min.in6)); |
| 295 | printf("-%s", xtables_ip6addr_to_numeric(&info->dst_max.in6)); |
Jan Engelhardt | fc11b0b | 2008-01-20 13:43:49 +0000 | [diff] [blame] | 296 | } |
| 297 | } |
| 298 | |
Jan Engelhardt | f2a7752 | 2009-06-25 20:12:12 +0200 | [diff] [blame] | 299 | static struct xtables_match iprange_mt_reg[] = { |
| 300 | { |
| 301 | .version = XTABLES_VERSION, |
| 302 | .name = "iprange", |
| 303 | .revision = 0, |
| 304 | .family = NFPROTO_IPV4, |
| 305 | .size = XT_ALIGN(sizeof(struct ipt_iprange_info)), |
| 306 | .userspacesize = XT_ALIGN(sizeof(struct ipt_iprange_info)), |
| 307 | .help = iprange_mt_help, |
Jan Engelhardt | ce4b795 | 2011-05-07 14:39:08 +0200 | [diff] [blame] | 308 | .x6_parse = iprange_parse, |
| 309 | .x6_fcheck = iprange_mt_check, |
Jan Engelhardt | f2a7752 | 2009-06-25 20:12:12 +0200 | [diff] [blame] | 310 | .print = iprange_print, |
| 311 | .save = iprange_save, |
Jan Engelhardt | ce4b795 | 2011-05-07 14:39:08 +0200 | [diff] [blame] | 312 | .x6_options = iprange_mt_opts, |
Jan Engelhardt | f2a7752 | 2009-06-25 20:12:12 +0200 | [diff] [blame] | 313 | }, |
| 314 | { |
| 315 | .version = XTABLES_VERSION, |
| 316 | .name = "iprange", |
| 317 | .revision = 1, |
| 318 | .family = NFPROTO_IPV4, |
| 319 | .size = XT_ALIGN(sizeof(struct xt_iprange_mtinfo)), |
| 320 | .userspacesize = XT_ALIGN(sizeof(struct xt_iprange_mtinfo)), |
| 321 | .help = iprange_mt_help, |
Jan Engelhardt | ce4b795 | 2011-05-07 14:39:08 +0200 | [diff] [blame] | 322 | .x6_parse = iprange_mt4_parse, |
| 323 | .x6_fcheck = iprange_mt_check, |
Jan Engelhardt | f2a7752 | 2009-06-25 20:12:12 +0200 | [diff] [blame] | 324 | .print = iprange_mt4_print, |
| 325 | .save = iprange_mt4_save, |
Jan Engelhardt | ce4b795 | 2011-05-07 14:39:08 +0200 | [diff] [blame] | 326 | .x6_options = iprange_mt_opts, |
Jan Engelhardt | f2a7752 | 2009-06-25 20:12:12 +0200 | [diff] [blame] | 327 | }, |
| 328 | { |
| 329 | .version = XTABLES_VERSION, |
| 330 | .name = "iprange", |
| 331 | .revision = 1, |
| 332 | .family = NFPROTO_IPV6, |
| 333 | .size = XT_ALIGN(sizeof(struct xt_iprange_mtinfo)), |
| 334 | .userspacesize = XT_ALIGN(sizeof(struct xt_iprange_mtinfo)), |
| 335 | .help = iprange_mt_help, |
Jan Engelhardt | ce4b795 | 2011-05-07 14:39:08 +0200 | [diff] [blame] | 336 | .x6_parse = iprange_mt6_parse, |
| 337 | .x6_fcheck = iprange_mt_check, |
Jan Engelhardt | f2a7752 | 2009-06-25 20:12:12 +0200 | [diff] [blame] | 338 | .print = iprange_mt6_print, |
| 339 | .save = iprange_mt6_save, |
Jan Engelhardt | ce4b795 | 2011-05-07 14:39:08 +0200 | [diff] [blame] | 340 | .x6_options = iprange_mt_opts, |
Jan Engelhardt | f2a7752 | 2009-06-25 20:12:12 +0200 | [diff] [blame] | 341 | }, |
Jan Engelhardt | fc11b0b | 2008-01-20 13:43:49 +0000 | [diff] [blame] | 342 | }; |
| 343 | |
Joszef Kadlecsik | 9cb6615 | 2003-04-23 13:27:09 +0000 | [diff] [blame] | 344 | void _init(void) |
| 345 | { |
Jan Engelhardt | f2a7752 | 2009-06-25 20:12:12 +0200 | [diff] [blame] | 346 | xtables_register_matches(iprange_mt_reg, ARRAY_SIZE(iprange_mt_reg)); |
Joszef Kadlecsik | 9cb6615 | 2003-04-23 13:27:09 +0000 | [diff] [blame] | 347 | } |