Jozsef Kadlecsik | 21f4502 | 2011-02-01 15:53:55 +0100 | [diff] [blame] | 1 | /* Copyright (C) 2003-2011 Jozsef Kadlecsik <kadlec@blackhole.kfki.hu> |
| 2 | * |
| 3 | * This program is free software; you can redistribute it and/or modify |
| 4 | * it under the terms of the GNU General Public License version 2 as |
| 5 | * published by the Free Software Foundation. |
| 6 | */ |
| 7 | |
| 8 | /* Kernel module implementing an IP set type: the hash:net,port type */ |
| 9 | |
| 10 | #include <linux/jhash.h> |
| 11 | #include <linux/module.h> |
| 12 | #include <linux/ip.h> |
| 13 | #include <linux/skbuff.h> |
| 14 | #include <linux/errno.h> |
Jozsef Kadlecsik | 21f4502 | 2011-02-01 15:53:55 +0100 | [diff] [blame] | 15 | #include <linux/random.h> |
| 16 | #include <net/ip.h> |
| 17 | #include <net/ipv6.h> |
| 18 | #include <net/netlink.h> |
| 19 | |
| 20 | #include <linux/netfilter.h> |
| 21 | #include <linux/netfilter/ipset/pfxlen.h> |
| 22 | #include <linux/netfilter/ipset/ip_set.h> |
| 23 | #include <linux/netfilter/ipset/ip_set_timeout.h> |
| 24 | #include <linux/netfilter/ipset/ip_set_getport.h> |
| 25 | #include <linux/netfilter/ipset/ip_set_hash.h> |
| 26 | |
Jozsef Kadlecsik | 10111a6 | 2012-09-21 21:59:32 +0200 | [diff] [blame] | 27 | #define REVISION_MIN 0 |
| 28 | /* 1 SCTP and UDPLITE support added */ |
| 29 | /* 2 Range as input support for IPv4 added */ |
| 30 | #define REVISION_MAX 3 /* nomatch flag support added */ |
| 31 | |
Jozsef Kadlecsik | 21f4502 | 2011-02-01 15:53:55 +0100 | [diff] [blame] | 32 | MODULE_LICENSE("GPL"); |
| 33 | MODULE_AUTHOR("Jozsef Kadlecsik <kadlec@blackhole.kfki.hu>"); |
Jozsef Kadlecsik | 10111a6 | 2012-09-21 21:59:32 +0200 | [diff] [blame] | 34 | IP_SET_MODULE_DESC("hash:net,port", REVISION_MIN, REVISION_MAX); |
Jozsef Kadlecsik | 21f4502 | 2011-02-01 15:53:55 +0100 | [diff] [blame] | 35 | MODULE_ALIAS("ip_set_hash:net,port"); |
| 36 | |
| 37 | /* Type specific function prefix */ |
| 38 | #define TYPE hash_netport |
| 39 | |
| 40 | static bool |
| 41 | hash_netport_same_set(const struct ip_set *a, const struct ip_set *b); |
| 42 | |
| 43 | #define hash_netport4_same_set hash_netport_same_set |
| 44 | #define hash_netport6_same_set hash_netport_same_set |
| 45 | |
| 46 | /* The type variant functions: IPv4 */ |
| 47 | |
Jozsef Kadlecsik | 2a7cef2 | 2012-01-14 17:16:36 +0100 | [diff] [blame] | 48 | /* We squeeze the "nomatch" flag into cidr: we don't support cidr == 0 |
| 49 | * However this way we have to store internally cidr - 1, |
| 50 | * dancing back and forth. |
| 51 | */ |
| 52 | #define IP_SET_HASH_WITH_NETS_PACKED |
| 53 | |
Jozsef Kadlecsik | 21f4502 | 2011-02-01 15:53:55 +0100 | [diff] [blame] | 54 | /* Member elements without timeout */ |
| 55 | struct hash_netport4_elem { |
| 56 | __be32 ip; |
| 57 | __be16 port; |
| 58 | u8 proto; |
Jozsef Kadlecsik | 2a7cef2 | 2012-01-14 17:16:36 +0100 | [diff] [blame] | 59 | u8 cidr:7; |
| 60 | u8 nomatch:1; |
Jozsef Kadlecsik | 21f4502 | 2011-02-01 15:53:55 +0100 | [diff] [blame] | 61 | }; |
| 62 | |
| 63 | /* Member elements with timeout support */ |
| 64 | struct hash_netport4_telem { |
| 65 | __be32 ip; |
| 66 | __be16 port; |
| 67 | u8 proto; |
Jozsef Kadlecsik | 2a7cef2 | 2012-01-14 17:16:36 +0100 | [diff] [blame] | 68 | u8 cidr:7; |
| 69 | u8 nomatch:1; |
Jozsef Kadlecsik | 21f4502 | 2011-02-01 15:53:55 +0100 | [diff] [blame] | 70 | unsigned long timeout; |
| 71 | }; |
| 72 | |
| 73 | static inline bool |
| 74 | hash_netport4_data_equal(const struct hash_netport4_elem *ip1, |
Jozsef Kadlecsik | 89dc79b | 2011-07-21 12:06:18 +0200 | [diff] [blame] | 75 | const struct hash_netport4_elem *ip2, |
| 76 | u32 *multi) |
Jozsef Kadlecsik | 21f4502 | 2011-02-01 15:53:55 +0100 | [diff] [blame] | 77 | { |
| 78 | return ip1->ip == ip2->ip && |
| 79 | ip1->port == ip2->port && |
| 80 | ip1->proto == ip2->proto && |
| 81 | ip1->cidr == ip2->cidr; |
| 82 | } |
| 83 | |
| 84 | static inline bool |
| 85 | hash_netport4_data_isnull(const struct hash_netport4_elem *elem) |
| 86 | { |
| 87 | return elem->proto == 0; |
| 88 | } |
| 89 | |
| 90 | static inline void |
| 91 | hash_netport4_data_copy(struct hash_netport4_elem *dst, |
| 92 | const struct hash_netport4_elem *src) |
| 93 | { |
| 94 | dst->ip = src->ip; |
| 95 | dst->port = src->port; |
| 96 | dst->proto = src->proto; |
| 97 | dst->cidr = src->cidr; |
Jozsef Kadlecsik | 2a7cef2 | 2012-01-14 17:16:36 +0100 | [diff] [blame] | 98 | dst->nomatch = src->nomatch; |
| 99 | } |
| 100 | |
| 101 | static inline void |
| 102 | hash_netport4_data_flags(struct hash_netport4_elem *dst, u32 flags) |
| 103 | { |
| 104 | dst->nomatch = !!(flags & IPSET_FLAG_NOMATCH); |
| 105 | } |
| 106 | |
Jozsef Kadlecsik | 3e0304a | 2012-09-21 22:02:36 +0200 | [diff] [blame] | 107 | static inline int |
Jozsef Kadlecsik | 2a7cef2 | 2012-01-14 17:16:36 +0100 | [diff] [blame] | 108 | hash_netport4_data_match(const struct hash_netport4_elem *elem) |
| 109 | { |
Jozsef Kadlecsik | 3e0304a | 2012-09-21 22:02:36 +0200 | [diff] [blame] | 110 | return elem->nomatch ? -ENOTEMPTY : 1; |
Jozsef Kadlecsik | 21f4502 | 2011-02-01 15:53:55 +0100 | [diff] [blame] | 111 | } |
| 112 | |
| 113 | static inline void |
| 114 | hash_netport4_data_netmask(struct hash_netport4_elem *elem, u8 cidr) |
| 115 | { |
| 116 | elem->ip &= ip_set_netmask(cidr); |
Jozsef Kadlecsik | 2a7cef2 | 2012-01-14 17:16:36 +0100 | [diff] [blame] | 117 | elem->cidr = cidr - 1; |
Jozsef Kadlecsik | 21f4502 | 2011-02-01 15:53:55 +0100 | [diff] [blame] | 118 | } |
| 119 | |
| 120 | static inline void |
| 121 | hash_netport4_data_zero_out(struct hash_netport4_elem *elem) |
| 122 | { |
| 123 | elem->proto = 0; |
| 124 | } |
| 125 | |
| 126 | static bool |
| 127 | hash_netport4_data_list(struct sk_buff *skb, |
| 128 | const struct hash_netport4_elem *data) |
| 129 | { |
Jozsef Kadlecsik | 2a7cef2 | 2012-01-14 17:16:36 +0100 | [diff] [blame] | 130 | u32 flags = data->nomatch ? IPSET_FLAG_NOMATCH : 0; |
| 131 | |
David S. Miller | 7cf7899 | 2012-04-01 19:54:46 -0400 | [diff] [blame] | 132 | if (nla_put_ipaddr4(skb, IPSET_ATTR_IP, data->ip) || |
| 133 | nla_put_net16(skb, IPSET_ATTR_PORT, data->port) || |
| 134 | nla_put_u8(skb, IPSET_ATTR_CIDR, data->cidr + 1) || |
| 135 | nla_put_u8(skb, IPSET_ATTR_PROTO, data->proto) || |
| 136 | (flags && |
| 137 | nla_put_net32(skb, IPSET_ATTR_CADT_FLAGS, htonl(flags)))) |
| 138 | goto nla_put_failure; |
Jozsef Kadlecsik | 21f4502 | 2011-02-01 15:53:55 +0100 | [diff] [blame] | 139 | return 0; |
| 140 | |
| 141 | nla_put_failure: |
| 142 | return 1; |
| 143 | } |
| 144 | |
| 145 | static bool |
| 146 | hash_netport4_data_tlist(struct sk_buff *skb, |
| 147 | const struct hash_netport4_elem *data) |
| 148 | { |
| 149 | const struct hash_netport4_telem *tdata = |
| 150 | (const struct hash_netport4_telem *)data; |
Jozsef Kadlecsik | 2a7cef2 | 2012-01-14 17:16:36 +0100 | [diff] [blame] | 151 | u32 flags = data->nomatch ? IPSET_FLAG_NOMATCH : 0; |
Jozsef Kadlecsik | 21f4502 | 2011-02-01 15:53:55 +0100 | [diff] [blame] | 152 | |
David S. Miller | 7cf7899 | 2012-04-01 19:54:46 -0400 | [diff] [blame] | 153 | if (nla_put_ipaddr4(skb, IPSET_ATTR_IP, tdata->ip) || |
| 154 | nla_put_net16(skb, IPSET_ATTR_PORT, tdata->port) || |
| 155 | nla_put_u8(skb, IPSET_ATTR_CIDR, data->cidr + 1) || |
| 156 | nla_put_u8(skb, IPSET_ATTR_PROTO, data->proto) || |
| 157 | nla_put_net32(skb, IPSET_ATTR_TIMEOUT, |
| 158 | htonl(ip_set_timeout_get(tdata->timeout))) || |
| 159 | (flags && |
| 160 | nla_put_net32(skb, IPSET_ATTR_CADT_FLAGS, htonl(flags)))) |
| 161 | goto nla_put_failure; |
Jozsef Kadlecsik | 21f4502 | 2011-02-01 15:53:55 +0100 | [diff] [blame] | 162 | return 0; |
| 163 | |
| 164 | nla_put_failure: |
| 165 | return 1; |
| 166 | } |
| 167 | |
| 168 | #define IP_SET_HASH_WITH_PROTO |
| 169 | #define IP_SET_HASH_WITH_NETS |
| 170 | |
| 171 | #define PF 4 |
| 172 | #define HOST_MASK 32 |
| 173 | #include <linux/netfilter/ipset/ip_set_ahash.h> |
| 174 | |
Jozsef Kadlecsik | 3d14b17 | 2011-06-16 18:49:17 +0200 | [diff] [blame] | 175 | static inline void |
| 176 | hash_netport4_data_next(struct ip_set_hash *h, |
| 177 | const struct hash_netport4_elem *d) |
| 178 | { |
Jozsef Kadlecsik | 6e27c9b | 2012-09-21 21:44:58 +0200 | [diff] [blame] | 179 | h->next.ip = d->ip; |
| 180 | h->next.port = d->port; |
Jozsef Kadlecsik | 3d14b17 | 2011-06-16 18:49:17 +0200 | [diff] [blame] | 181 | } |
| 182 | |
Jozsef Kadlecsik | 21f4502 | 2011-02-01 15:53:55 +0100 | [diff] [blame] | 183 | static int |
| 184 | hash_netport4_kadt(struct ip_set *set, const struct sk_buff *skb, |
Jozsef Kadlecsik | b66554c | 2011-06-16 18:56:47 +0200 | [diff] [blame] | 185 | const struct xt_action_param *par, |
Jozsef Kadlecsik | ac8cc92 | 2011-06-16 18:42:40 +0200 | [diff] [blame] | 186 | enum ipset_adt adt, const struct ip_set_adt_opt *opt) |
Jozsef Kadlecsik | 21f4502 | 2011-02-01 15:53:55 +0100 | [diff] [blame] | 187 | { |
| 188 | const struct ip_set_hash *h = set->data; |
| 189 | ipset_adtfn adtfn = set->variant->adt[adt]; |
| 190 | struct hash_netport4_elem data = { |
Jozsef Kadlecsik | 2a7cef2 | 2012-01-14 17:16:36 +0100 | [diff] [blame] | 191 | .cidr = h->nets[0].cidr ? h->nets[0].cidr - 1 : HOST_MASK - 1 |
Jozsef Kadlecsik | 9b03a5e | 2011-06-16 18:58:20 +0200 | [diff] [blame] | 192 | }; |
Jozsef Kadlecsik | 21f4502 | 2011-02-01 15:53:55 +0100 | [diff] [blame] | 193 | |
Jozsef Kadlecsik | 21f4502 | 2011-02-01 15:53:55 +0100 | [diff] [blame] | 194 | if (adt == IPSET_TEST) |
Jozsef Kadlecsik | 2a7cef2 | 2012-01-14 17:16:36 +0100 | [diff] [blame] | 195 | data.cidr = HOST_MASK - 1; |
Jozsef Kadlecsik | 21f4502 | 2011-02-01 15:53:55 +0100 | [diff] [blame] | 196 | |
Jozsef Kadlecsik | ac8cc92 | 2011-06-16 18:42:40 +0200 | [diff] [blame] | 197 | if (!ip_set_get_ip4_port(skb, opt->flags & IPSET_DIM_TWO_SRC, |
Jozsef Kadlecsik | 21f4502 | 2011-02-01 15:53:55 +0100 | [diff] [blame] | 198 | &data.port, &data.proto)) |
| 199 | return -EINVAL; |
| 200 | |
Jozsef Kadlecsik | ac8cc92 | 2011-06-16 18:42:40 +0200 | [diff] [blame] | 201 | ip4addrptr(skb, opt->flags & IPSET_DIM_ONE_SRC, &data.ip); |
Jozsef Kadlecsik | 2a7cef2 | 2012-01-14 17:16:36 +0100 | [diff] [blame] | 202 | data.ip &= ip_set_netmask(data.cidr + 1); |
Jozsef Kadlecsik | 21f4502 | 2011-02-01 15:53:55 +0100 | [diff] [blame] | 203 | |
Jozsef Kadlecsik | ac8cc92 | 2011-06-16 18:42:40 +0200 | [diff] [blame] | 204 | return adtfn(set, &data, opt_timeout(opt, h), opt->cmdflags); |
Jozsef Kadlecsik | 21f4502 | 2011-02-01 15:53:55 +0100 | [diff] [blame] | 205 | } |
| 206 | |
| 207 | static int |
| 208 | hash_netport4_uadt(struct ip_set *set, struct nlattr *tb[], |
Jozsef Kadlecsik | 3d14b17 | 2011-06-16 18:49:17 +0200 | [diff] [blame] | 209 | enum ipset_adt adt, u32 *lineno, u32 flags, bool retried) |
Jozsef Kadlecsik | 21f4502 | 2011-02-01 15:53:55 +0100 | [diff] [blame] | 210 | { |
| 211 | const struct ip_set_hash *h = set->data; |
| 212 | ipset_adtfn adtfn = set->variant->adt[adt]; |
Jozsef Kadlecsik | 2a7cef2 | 2012-01-14 17:16:36 +0100 | [diff] [blame] | 213 | struct hash_netport4_elem data = { .cidr = HOST_MASK - 1 }; |
Jozsef Kadlecsik | d0d9e0a | 2011-06-16 18:52:41 +0200 | [diff] [blame] | 214 | u32 port, port_to, p = 0, ip = 0, ip_to, last; |
Jozsef Kadlecsik | 21f4502 | 2011-02-01 15:53:55 +0100 | [diff] [blame] | 215 | u32 timeout = h->timeout; |
Jozsef Kadlecsik | 5e0c1eb | 2011-03-20 15:33:26 +0100 | [diff] [blame] | 216 | bool with_ports = false; |
Jozsef Kadlecsik | 2a7cef2 | 2012-01-14 17:16:36 +0100 | [diff] [blame] | 217 | u8 cidr; |
Jozsef Kadlecsik | 21f4502 | 2011-02-01 15:53:55 +0100 | [diff] [blame] | 218 | int ret; |
| 219 | |
| 220 | if (unlikely(!tb[IPSET_ATTR_IP] || |
| 221 | !ip_set_attr_netorder(tb, IPSET_ATTR_PORT) || |
| 222 | !ip_set_optattr_netorder(tb, IPSET_ATTR_PORT_TO) || |
Jozsef Kadlecsik | 2a7cef2 | 2012-01-14 17:16:36 +0100 | [diff] [blame] | 223 | !ip_set_optattr_netorder(tb, IPSET_ATTR_TIMEOUT) || |
| 224 | !ip_set_optattr_netorder(tb, IPSET_ATTR_CADT_FLAGS))) |
Jozsef Kadlecsik | 21f4502 | 2011-02-01 15:53:55 +0100 | [diff] [blame] | 225 | return -IPSET_ERR_PROTOCOL; |
| 226 | |
| 227 | if (tb[IPSET_ATTR_LINENO]) |
| 228 | *lineno = nla_get_u32(tb[IPSET_ATTR_LINENO]); |
| 229 | |
Jozsef Kadlecsik | d0d9e0a | 2011-06-16 18:52:41 +0200 | [diff] [blame] | 230 | ret = ip_set_get_hostipaddr4(tb[IPSET_ATTR_IP], &ip); |
Jozsef Kadlecsik | 21f4502 | 2011-02-01 15:53:55 +0100 | [diff] [blame] | 231 | if (ret) |
| 232 | return ret; |
| 233 | |
Jozsef Kadlecsik | d0d9e0a | 2011-06-16 18:52:41 +0200 | [diff] [blame] | 234 | if (tb[IPSET_ATTR_CIDR]) { |
Jozsef Kadlecsik | 2a7cef2 | 2012-01-14 17:16:36 +0100 | [diff] [blame] | 235 | cidr = nla_get_u8(tb[IPSET_ATTR_CIDR]); |
| 236 | if (!cidr || cidr > HOST_MASK) |
Jozsef Kadlecsik | 15b4d93 | 2011-06-16 19:01:26 +0200 | [diff] [blame] | 237 | return -IPSET_ERR_INVALID_CIDR; |
Jozsef Kadlecsik | 2a7cef2 | 2012-01-14 17:16:36 +0100 | [diff] [blame] | 238 | data.cidr = cidr - 1; |
Jozsef Kadlecsik | d0d9e0a | 2011-06-16 18:52:41 +0200 | [diff] [blame] | 239 | } |
Jozsef Kadlecsik | 21f4502 | 2011-02-01 15:53:55 +0100 | [diff] [blame] | 240 | |
| 241 | if (tb[IPSET_ATTR_PORT]) |
| 242 | data.port = nla_get_be16(tb[IPSET_ATTR_PORT]); |
| 243 | else |
| 244 | return -IPSET_ERR_PROTOCOL; |
| 245 | |
| 246 | if (tb[IPSET_ATTR_PROTO]) { |
| 247 | data.proto = nla_get_u8(tb[IPSET_ATTR_PROTO]); |
Jozsef Kadlecsik | 5e0c1eb | 2011-03-20 15:33:26 +0100 | [diff] [blame] | 248 | with_ports = ip_set_proto_with_ports(data.proto); |
Jozsef Kadlecsik | 21f4502 | 2011-02-01 15:53:55 +0100 | [diff] [blame] | 249 | |
| 250 | if (data.proto == 0) |
| 251 | return -IPSET_ERR_INVALID_PROTO; |
| 252 | } else |
| 253 | return -IPSET_ERR_MISSING_PROTO; |
| 254 | |
Jozsef Kadlecsik | 5e0c1eb | 2011-03-20 15:33:26 +0100 | [diff] [blame] | 255 | if (!(with_ports || data.proto == IPPROTO_ICMP)) |
Jozsef Kadlecsik | 21f4502 | 2011-02-01 15:53:55 +0100 | [diff] [blame] | 256 | data.port = 0; |
Jozsef Kadlecsik | 21f4502 | 2011-02-01 15:53:55 +0100 | [diff] [blame] | 257 | |
| 258 | if (tb[IPSET_ATTR_TIMEOUT]) { |
| 259 | if (!with_timeout(h->timeout)) |
| 260 | return -IPSET_ERR_TIMEOUT; |
| 261 | timeout = ip_set_timeout_uget(tb[IPSET_ATTR_TIMEOUT]); |
| 262 | } |
| 263 | |
Jozsef Kadlecsik | d0d9e0a | 2011-06-16 18:52:41 +0200 | [diff] [blame] | 264 | with_ports = with_ports && tb[IPSET_ATTR_PORT_TO]; |
Jozsef Kadlecsik | 2a7cef2 | 2012-01-14 17:16:36 +0100 | [diff] [blame] | 265 | |
| 266 | if (tb[IPSET_ATTR_CADT_FLAGS] && adt == IPSET_ADD) { |
| 267 | u32 cadt_flags = ip_set_get_h32(tb[IPSET_ATTR_CADT_FLAGS]); |
| 268 | if (cadt_flags & IPSET_FLAG_NOMATCH) |
| 269 | flags |= (cadt_flags << 16); |
| 270 | } |
| 271 | |
Jozsef Kadlecsik | d0d9e0a | 2011-06-16 18:52:41 +0200 | [diff] [blame] | 272 | if (adt == IPSET_TEST || !(with_ports || tb[IPSET_ATTR_IP_TO])) { |
Jozsef Kadlecsik | 2a7cef2 | 2012-01-14 17:16:36 +0100 | [diff] [blame] | 273 | data.ip = htonl(ip & ip_set_hostmask(data.cidr + 1)); |
Jozsef Kadlecsik | 5416219 | 2011-06-16 18:40:55 +0200 | [diff] [blame] | 274 | ret = adtfn(set, &data, timeout, flags); |
Jozsef Kadlecsik | 21f4502 | 2011-02-01 15:53:55 +0100 | [diff] [blame] | 275 | return ip_set_eexist(ret, flags) ? 0 : ret; |
| 276 | } |
| 277 | |
Jozsef Kadlecsik | d0d9e0a | 2011-06-16 18:52:41 +0200 | [diff] [blame] | 278 | port = port_to = ntohs(data.port); |
| 279 | if (tb[IPSET_ATTR_PORT_TO]) { |
| 280 | port_to = ip_set_get_h16(tb[IPSET_ATTR_PORT_TO]); |
| 281 | if (port_to < port) |
| 282 | swap(port, port_to); |
| 283 | } |
| 284 | if (tb[IPSET_ATTR_IP_TO]) { |
| 285 | ret = ip_set_get_hostipaddr4(tb[IPSET_ATTR_IP_TO], &ip_to); |
| 286 | if (ret) |
| 287 | return ret; |
| 288 | if (ip_to < ip) |
| 289 | swap(ip, ip_to); |
| 290 | if (ip + UINT_MAX == ip_to) |
| 291 | return -IPSET_ERR_HASH_RANGE; |
| 292 | } else { |
Jozsef Kadlecsik | 2a7cef2 | 2012-01-14 17:16:36 +0100 | [diff] [blame] | 293 | ip_set_mask_from_to(ip, ip_to, data.cidr + 1); |
Jozsef Kadlecsik | d0d9e0a | 2011-06-16 18:52:41 +0200 | [diff] [blame] | 294 | } |
Jozsef Kadlecsik | 21f4502 | 2011-02-01 15:53:55 +0100 | [diff] [blame] | 295 | |
Jozsef Kadlecsik | 3d14b17 | 2011-06-16 18:49:17 +0200 | [diff] [blame] | 296 | if (retried) |
Jozsef Kadlecsik | 6e27c9b | 2012-09-21 21:44:58 +0200 | [diff] [blame] | 297 | ip = ntohl(h->next.ip); |
Jozsef Kadlecsik | d0d9e0a | 2011-06-16 18:52:41 +0200 | [diff] [blame] | 298 | while (!after(ip, ip_to)) { |
| 299 | data.ip = htonl(ip); |
Jozsef Kadlecsik | 2a7cef2 | 2012-01-14 17:16:36 +0100 | [diff] [blame] | 300 | last = ip_set_range_to_cidr(ip, ip_to, &cidr); |
| 301 | data.cidr = cidr - 1; |
Jozsef Kadlecsik | 6e27c9b | 2012-09-21 21:44:58 +0200 | [diff] [blame] | 302 | p = retried && ip == ntohl(h->next.ip) ? ntohs(h->next.port) |
| 303 | : port; |
Jozsef Kadlecsik | d0d9e0a | 2011-06-16 18:52:41 +0200 | [diff] [blame] | 304 | for (; p <= port_to; p++) { |
| 305 | data.port = htons(p); |
| 306 | ret = adtfn(set, &data, timeout, flags); |
Jozsef Kadlecsik | 21f4502 | 2011-02-01 15:53:55 +0100 | [diff] [blame] | 307 | |
Jozsef Kadlecsik | d0d9e0a | 2011-06-16 18:52:41 +0200 | [diff] [blame] | 308 | if (ret && !ip_set_eexist(ret, flags)) |
| 309 | return ret; |
| 310 | else |
| 311 | ret = 0; |
| 312 | } |
| 313 | ip = last + 1; |
Jozsef Kadlecsik | 21f4502 | 2011-02-01 15:53:55 +0100 | [diff] [blame] | 314 | } |
| 315 | return ret; |
| 316 | } |
| 317 | |
| 318 | static bool |
| 319 | hash_netport_same_set(const struct ip_set *a, const struct ip_set *b) |
| 320 | { |
| 321 | const struct ip_set_hash *x = a->data; |
| 322 | const struct ip_set_hash *y = b->data; |
| 323 | |
| 324 | /* Resizing changes htable_bits, so we ignore it */ |
| 325 | return x->maxelem == y->maxelem && |
| 326 | x->timeout == y->timeout; |
| 327 | } |
| 328 | |
| 329 | /* The type variant functions: IPv6 */ |
| 330 | |
| 331 | struct hash_netport6_elem { |
| 332 | union nf_inet_addr ip; |
| 333 | __be16 port; |
| 334 | u8 proto; |
Jozsef Kadlecsik | 2a7cef2 | 2012-01-14 17:16:36 +0100 | [diff] [blame] | 335 | u8 cidr:7; |
| 336 | u8 nomatch:1; |
Jozsef Kadlecsik | 21f4502 | 2011-02-01 15:53:55 +0100 | [diff] [blame] | 337 | }; |
| 338 | |
| 339 | struct hash_netport6_telem { |
| 340 | union nf_inet_addr ip; |
| 341 | __be16 port; |
| 342 | u8 proto; |
Jozsef Kadlecsik | 2a7cef2 | 2012-01-14 17:16:36 +0100 | [diff] [blame] | 343 | u8 cidr:7; |
| 344 | u8 nomatch:1; |
Jozsef Kadlecsik | 21f4502 | 2011-02-01 15:53:55 +0100 | [diff] [blame] | 345 | unsigned long timeout; |
| 346 | }; |
| 347 | |
| 348 | static inline bool |
| 349 | hash_netport6_data_equal(const struct hash_netport6_elem *ip1, |
Jozsef Kadlecsik | 89dc79b | 2011-07-21 12:06:18 +0200 | [diff] [blame] | 350 | const struct hash_netport6_elem *ip2, |
| 351 | u32 *multi) |
Jozsef Kadlecsik | 21f4502 | 2011-02-01 15:53:55 +0100 | [diff] [blame] | 352 | { |
| 353 | return ipv6_addr_cmp(&ip1->ip.in6, &ip2->ip.in6) == 0 && |
| 354 | ip1->port == ip2->port && |
| 355 | ip1->proto == ip2->proto && |
| 356 | ip1->cidr == ip2->cidr; |
| 357 | } |
| 358 | |
| 359 | static inline bool |
| 360 | hash_netport6_data_isnull(const struct hash_netport6_elem *elem) |
| 361 | { |
| 362 | return elem->proto == 0; |
| 363 | } |
| 364 | |
| 365 | static inline void |
| 366 | hash_netport6_data_copy(struct hash_netport6_elem *dst, |
| 367 | const struct hash_netport6_elem *src) |
| 368 | { |
| 369 | memcpy(dst, src, sizeof(*dst)); |
| 370 | } |
| 371 | |
| 372 | static inline void |
Jozsef Kadlecsik | 2a7cef2 | 2012-01-14 17:16:36 +0100 | [diff] [blame] | 373 | hash_netport6_data_flags(struct hash_netport6_elem *dst, u32 flags) |
| 374 | { |
| 375 | dst->nomatch = !!(flags & IPSET_FLAG_NOMATCH); |
| 376 | } |
| 377 | |
Jozsef Kadlecsik | 3e0304a | 2012-09-21 22:02:36 +0200 | [diff] [blame] | 378 | static inline int |
Jozsef Kadlecsik | 2a7cef2 | 2012-01-14 17:16:36 +0100 | [diff] [blame] | 379 | hash_netport6_data_match(const struct hash_netport6_elem *elem) |
| 380 | { |
Jozsef Kadlecsik | 3e0304a | 2012-09-21 22:02:36 +0200 | [diff] [blame] | 381 | return elem->nomatch ? -ENOTEMPTY : 1; |
Jozsef Kadlecsik | 2a7cef2 | 2012-01-14 17:16:36 +0100 | [diff] [blame] | 382 | } |
| 383 | |
| 384 | static inline void |
Jozsef Kadlecsik | 21f4502 | 2011-02-01 15:53:55 +0100 | [diff] [blame] | 385 | hash_netport6_data_zero_out(struct hash_netport6_elem *elem) |
| 386 | { |
| 387 | elem->proto = 0; |
| 388 | } |
| 389 | |
| 390 | static inline void |
| 391 | ip6_netmask(union nf_inet_addr *ip, u8 prefix) |
| 392 | { |
| 393 | ip->ip6[0] &= ip_set_netmask6(prefix)[0]; |
| 394 | ip->ip6[1] &= ip_set_netmask6(prefix)[1]; |
| 395 | ip->ip6[2] &= ip_set_netmask6(prefix)[2]; |
| 396 | ip->ip6[3] &= ip_set_netmask6(prefix)[3]; |
| 397 | } |
| 398 | |
| 399 | static inline void |
| 400 | hash_netport6_data_netmask(struct hash_netport6_elem *elem, u8 cidr) |
| 401 | { |
| 402 | ip6_netmask(&elem->ip, cidr); |
Jozsef Kadlecsik | 2a7cef2 | 2012-01-14 17:16:36 +0100 | [diff] [blame] | 403 | elem->cidr = cidr - 1; |
Jozsef Kadlecsik | 21f4502 | 2011-02-01 15:53:55 +0100 | [diff] [blame] | 404 | } |
| 405 | |
| 406 | static bool |
| 407 | hash_netport6_data_list(struct sk_buff *skb, |
| 408 | const struct hash_netport6_elem *data) |
| 409 | { |
Jozsef Kadlecsik | 2a7cef2 | 2012-01-14 17:16:36 +0100 | [diff] [blame] | 410 | u32 flags = data->nomatch ? IPSET_FLAG_NOMATCH : 0; |
| 411 | |
David S. Miller | 7cf7899 | 2012-04-01 19:54:46 -0400 | [diff] [blame] | 412 | if (nla_put_ipaddr6(skb, IPSET_ATTR_IP, &data->ip.in6) || |
| 413 | nla_put_net16(skb, IPSET_ATTR_PORT, data->port) || |
| 414 | nla_put_u8(skb, IPSET_ATTR_CIDR, data->cidr + 1) || |
| 415 | nla_put_u8(skb, IPSET_ATTR_PROTO, data->proto) || |
| 416 | (flags && |
| 417 | nla_put_net32(skb, IPSET_ATTR_CADT_FLAGS, htonl(flags)))) |
| 418 | goto nla_put_failure; |
Jozsef Kadlecsik | 21f4502 | 2011-02-01 15:53:55 +0100 | [diff] [blame] | 419 | return 0; |
| 420 | |
| 421 | nla_put_failure: |
| 422 | return 1; |
| 423 | } |
| 424 | |
| 425 | static bool |
| 426 | hash_netport6_data_tlist(struct sk_buff *skb, |
| 427 | const struct hash_netport6_elem *data) |
| 428 | { |
| 429 | const struct hash_netport6_telem *e = |
| 430 | (const struct hash_netport6_telem *)data; |
Jozsef Kadlecsik | 2a7cef2 | 2012-01-14 17:16:36 +0100 | [diff] [blame] | 431 | u32 flags = data->nomatch ? IPSET_FLAG_NOMATCH : 0; |
Jozsef Kadlecsik | 21f4502 | 2011-02-01 15:53:55 +0100 | [diff] [blame] | 432 | |
David S. Miller | 7cf7899 | 2012-04-01 19:54:46 -0400 | [diff] [blame] | 433 | if (nla_put_ipaddr6(skb, IPSET_ATTR_IP, &e->ip.in6) || |
| 434 | nla_put_net16(skb, IPSET_ATTR_PORT, data->port) || |
| 435 | nla_put_u8(skb, IPSET_ATTR_CIDR, data->cidr + 1) || |
| 436 | nla_put_u8(skb, IPSET_ATTR_PROTO, data->proto) || |
| 437 | nla_put_net32(skb, IPSET_ATTR_TIMEOUT, |
| 438 | htonl(ip_set_timeout_get(e->timeout))) || |
| 439 | (flags && |
| 440 | nla_put_net32(skb, IPSET_ATTR_CADT_FLAGS, htonl(flags)))) |
| 441 | goto nla_put_failure; |
Jozsef Kadlecsik | 21f4502 | 2011-02-01 15:53:55 +0100 | [diff] [blame] | 442 | return 0; |
| 443 | |
| 444 | nla_put_failure: |
| 445 | return 1; |
| 446 | } |
| 447 | |
| 448 | #undef PF |
| 449 | #undef HOST_MASK |
| 450 | |
| 451 | #define PF 6 |
| 452 | #define HOST_MASK 128 |
| 453 | #include <linux/netfilter/ipset/ip_set_ahash.h> |
| 454 | |
Jozsef Kadlecsik | 3d14b17 | 2011-06-16 18:49:17 +0200 | [diff] [blame] | 455 | static inline void |
| 456 | hash_netport6_data_next(struct ip_set_hash *h, |
| 457 | const struct hash_netport6_elem *d) |
| 458 | { |
Jozsef Kadlecsik | 6e27c9b | 2012-09-21 21:44:58 +0200 | [diff] [blame] | 459 | h->next.port = d->port; |
Jozsef Kadlecsik | 3d14b17 | 2011-06-16 18:49:17 +0200 | [diff] [blame] | 460 | } |
| 461 | |
Jozsef Kadlecsik | 21f4502 | 2011-02-01 15:53:55 +0100 | [diff] [blame] | 462 | static int |
| 463 | hash_netport6_kadt(struct ip_set *set, const struct sk_buff *skb, |
Jozsef Kadlecsik | b66554c | 2011-06-16 18:56:47 +0200 | [diff] [blame] | 464 | const struct xt_action_param *par, |
Jozsef Kadlecsik | ac8cc92 | 2011-06-16 18:42:40 +0200 | [diff] [blame] | 465 | enum ipset_adt adt, const struct ip_set_adt_opt *opt) |
Jozsef Kadlecsik | 21f4502 | 2011-02-01 15:53:55 +0100 | [diff] [blame] | 466 | { |
| 467 | const struct ip_set_hash *h = set->data; |
| 468 | ipset_adtfn adtfn = set->variant->adt[adt]; |
| 469 | struct hash_netport6_elem data = { |
Jozsef Kadlecsik | 2a7cef2 | 2012-01-14 17:16:36 +0100 | [diff] [blame] | 470 | .cidr = h->nets[0].cidr ? h->nets[0].cidr - 1 : HOST_MASK - 1, |
Jozsef Kadlecsik | 9b03a5e | 2011-06-16 18:58:20 +0200 | [diff] [blame] | 471 | }; |
Jozsef Kadlecsik | 21f4502 | 2011-02-01 15:53:55 +0100 | [diff] [blame] | 472 | |
Jozsef Kadlecsik | 21f4502 | 2011-02-01 15:53:55 +0100 | [diff] [blame] | 473 | if (adt == IPSET_TEST) |
Jozsef Kadlecsik | 2a7cef2 | 2012-01-14 17:16:36 +0100 | [diff] [blame] | 474 | data.cidr = HOST_MASK - 1; |
Jozsef Kadlecsik | 21f4502 | 2011-02-01 15:53:55 +0100 | [diff] [blame] | 475 | |
Jozsef Kadlecsik | ac8cc92 | 2011-06-16 18:42:40 +0200 | [diff] [blame] | 476 | if (!ip_set_get_ip6_port(skb, opt->flags & IPSET_DIM_TWO_SRC, |
Jozsef Kadlecsik | 21f4502 | 2011-02-01 15:53:55 +0100 | [diff] [blame] | 477 | &data.port, &data.proto)) |
| 478 | return -EINVAL; |
| 479 | |
Jozsef Kadlecsik | ac8cc92 | 2011-06-16 18:42:40 +0200 | [diff] [blame] | 480 | ip6addrptr(skb, opt->flags & IPSET_DIM_ONE_SRC, &data.ip.in6); |
Jozsef Kadlecsik | 2a7cef2 | 2012-01-14 17:16:36 +0100 | [diff] [blame] | 481 | ip6_netmask(&data.ip, data.cidr + 1); |
Jozsef Kadlecsik | 21f4502 | 2011-02-01 15:53:55 +0100 | [diff] [blame] | 482 | |
Jozsef Kadlecsik | ac8cc92 | 2011-06-16 18:42:40 +0200 | [diff] [blame] | 483 | return adtfn(set, &data, opt_timeout(opt, h), opt->cmdflags); |
Jozsef Kadlecsik | 21f4502 | 2011-02-01 15:53:55 +0100 | [diff] [blame] | 484 | } |
| 485 | |
| 486 | static int |
| 487 | hash_netport6_uadt(struct ip_set *set, struct nlattr *tb[], |
Jozsef Kadlecsik | 3d14b17 | 2011-06-16 18:49:17 +0200 | [diff] [blame] | 488 | enum ipset_adt adt, u32 *lineno, u32 flags, bool retried) |
Jozsef Kadlecsik | 21f4502 | 2011-02-01 15:53:55 +0100 | [diff] [blame] | 489 | { |
| 490 | const struct ip_set_hash *h = set->data; |
| 491 | ipset_adtfn adtfn = set->variant->adt[adt]; |
Jozsef Kadlecsik | 2a7cef2 | 2012-01-14 17:16:36 +0100 | [diff] [blame] | 492 | struct hash_netport6_elem data = { .cidr = HOST_MASK - 1 }; |
Jozsef Kadlecsik | 21f4502 | 2011-02-01 15:53:55 +0100 | [diff] [blame] | 493 | u32 port, port_to; |
| 494 | u32 timeout = h->timeout; |
Jozsef Kadlecsik | 5e0c1eb | 2011-03-20 15:33:26 +0100 | [diff] [blame] | 495 | bool with_ports = false; |
Jozsef Kadlecsik | 2a7cef2 | 2012-01-14 17:16:36 +0100 | [diff] [blame] | 496 | u8 cidr; |
Jozsef Kadlecsik | 21f4502 | 2011-02-01 15:53:55 +0100 | [diff] [blame] | 497 | int ret; |
| 498 | |
| 499 | if (unlikely(!tb[IPSET_ATTR_IP] || |
| 500 | !ip_set_attr_netorder(tb, IPSET_ATTR_PORT) || |
| 501 | !ip_set_optattr_netorder(tb, IPSET_ATTR_PORT_TO) || |
Jozsef Kadlecsik | 2a7cef2 | 2012-01-14 17:16:36 +0100 | [diff] [blame] | 502 | !ip_set_optattr_netorder(tb, IPSET_ATTR_TIMEOUT) || |
| 503 | !ip_set_optattr_netorder(tb, IPSET_ATTR_CADT_FLAGS))) |
Jozsef Kadlecsik | 21f4502 | 2011-02-01 15:53:55 +0100 | [diff] [blame] | 504 | return -IPSET_ERR_PROTOCOL; |
Jozsef Kadlecsik | d0d9e0a | 2011-06-16 18:52:41 +0200 | [diff] [blame] | 505 | if (unlikely(tb[IPSET_ATTR_IP_TO])) |
| 506 | return -IPSET_ERR_HASH_RANGE_UNSUPPORTED; |
Jozsef Kadlecsik | 21f4502 | 2011-02-01 15:53:55 +0100 | [diff] [blame] | 507 | |
| 508 | if (tb[IPSET_ATTR_LINENO]) |
| 509 | *lineno = nla_get_u32(tb[IPSET_ATTR_LINENO]); |
| 510 | |
| 511 | ret = ip_set_get_ipaddr6(tb[IPSET_ATTR_IP], &data.ip); |
| 512 | if (ret) |
| 513 | return ret; |
| 514 | |
Jozsef Kadlecsik | 2a7cef2 | 2012-01-14 17:16:36 +0100 | [diff] [blame] | 515 | if (tb[IPSET_ATTR_CIDR]) { |
| 516 | cidr = nla_get_u8(tb[IPSET_ATTR_CIDR]); |
| 517 | if (!cidr || cidr > HOST_MASK) |
| 518 | return -IPSET_ERR_INVALID_CIDR; |
| 519 | data.cidr = cidr - 1; |
| 520 | } |
| 521 | ip6_netmask(&data.ip, data.cidr + 1); |
Jozsef Kadlecsik | 21f4502 | 2011-02-01 15:53:55 +0100 | [diff] [blame] | 522 | |
| 523 | if (tb[IPSET_ATTR_PORT]) |
| 524 | data.port = nla_get_be16(tb[IPSET_ATTR_PORT]); |
| 525 | else |
| 526 | return -IPSET_ERR_PROTOCOL; |
| 527 | |
| 528 | if (tb[IPSET_ATTR_PROTO]) { |
| 529 | data.proto = nla_get_u8(tb[IPSET_ATTR_PROTO]); |
Jozsef Kadlecsik | 5e0c1eb | 2011-03-20 15:33:26 +0100 | [diff] [blame] | 530 | with_ports = ip_set_proto_with_ports(data.proto); |
Jozsef Kadlecsik | 21f4502 | 2011-02-01 15:53:55 +0100 | [diff] [blame] | 531 | |
| 532 | if (data.proto == 0) |
| 533 | return -IPSET_ERR_INVALID_PROTO; |
| 534 | } else |
| 535 | return -IPSET_ERR_MISSING_PROTO; |
| 536 | |
Jozsef Kadlecsik | 5e0c1eb | 2011-03-20 15:33:26 +0100 | [diff] [blame] | 537 | if (!(with_ports || data.proto == IPPROTO_ICMPV6)) |
Jozsef Kadlecsik | 21f4502 | 2011-02-01 15:53:55 +0100 | [diff] [blame] | 538 | data.port = 0; |
Jozsef Kadlecsik | 21f4502 | 2011-02-01 15:53:55 +0100 | [diff] [blame] | 539 | |
| 540 | if (tb[IPSET_ATTR_TIMEOUT]) { |
| 541 | if (!with_timeout(h->timeout)) |
| 542 | return -IPSET_ERR_TIMEOUT; |
| 543 | timeout = ip_set_timeout_uget(tb[IPSET_ATTR_TIMEOUT]); |
| 544 | } |
| 545 | |
Jozsef Kadlecsik | 2a7cef2 | 2012-01-14 17:16:36 +0100 | [diff] [blame] | 546 | if (tb[IPSET_ATTR_CADT_FLAGS] && adt == IPSET_ADD) { |
| 547 | u32 cadt_flags = ip_set_get_h32(tb[IPSET_ATTR_CADT_FLAGS]); |
| 548 | if (cadt_flags & IPSET_FLAG_NOMATCH) |
| 549 | flags |= (cadt_flags << 16); |
| 550 | } |
| 551 | |
Jozsef Kadlecsik | 5e0c1eb | 2011-03-20 15:33:26 +0100 | [diff] [blame] | 552 | if (adt == IPSET_TEST || !with_ports || !tb[IPSET_ATTR_PORT_TO]) { |
Jozsef Kadlecsik | 5416219 | 2011-06-16 18:40:55 +0200 | [diff] [blame] | 553 | ret = adtfn(set, &data, timeout, flags); |
Jozsef Kadlecsik | 21f4502 | 2011-02-01 15:53:55 +0100 | [diff] [blame] | 554 | return ip_set_eexist(ret, flags) ? 0 : ret; |
| 555 | } |
| 556 | |
| 557 | port = ntohs(data.port); |
| 558 | port_to = ip_set_get_h16(tb[IPSET_ATTR_PORT_TO]); |
| 559 | if (port > port_to) |
| 560 | swap(port, port_to); |
| 561 | |
Jozsef Kadlecsik | 3d14b17 | 2011-06-16 18:49:17 +0200 | [diff] [blame] | 562 | if (retried) |
Jozsef Kadlecsik | 6e27c9b | 2012-09-21 21:44:58 +0200 | [diff] [blame] | 563 | port = ntohs(h->next.port); |
Jozsef Kadlecsik | 21f4502 | 2011-02-01 15:53:55 +0100 | [diff] [blame] | 564 | for (; port <= port_to; port++) { |
| 565 | data.port = htons(port); |
Jozsef Kadlecsik | 5416219 | 2011-06-16 18:40:55 +0200 | [diff] [blame] | 566 | ret = adtfn(set, &data, timeout, flags); |
Jozsef Kadlecsik | 21f4502 | 2011-02-01 15:53:55 +0100 | [diff] [blame] | 567 | |
| 568 | if (ret && !ip_set_eexist(ret, flags)) |
| 569 | return ret; |
| 570 | else |
| 571 | ret = 0; |
| 572 | } |
| 573 | return ret; |
| 574 | } |
| 575 | |
| 576 | /* Create hash:ip type of sets */ |
| 577 | |
| 578 | static int |
| 579 | hash_netport_create(struct ip_set *set, struct nlattr *tb[], u32 flags) |
| 580 | { |
| 581 | struct ip_set_hash *h; |
| 582 | u32 hashsize = IPSET_DEFAULT_HASHSIZE, maxelem = IPSET_DEFAULT_MAXELEM; |
| 583 | u8 hbits; |
Jozsef Kadlecsik | 26a5d3c | 2012-05-14 01:47:01 +0000 | [diff] [blame] | 584 | size_t hsize; |
Jozsef Kadlecsik | 21f4502 | 2011-02-01 15:53:55 +0100 | [diff] [blame] | 585 | |
Jan Engelhardt | c15f1c8 | 2012-02-14 00:24:10 +0100 | [diff] [blame] | 586 | if (!(set->family == NFPROTO_IPV4 || set->family == NFPROTO_IPV6)) |
Jozsef Kadlecsik | 21f4502 | 2011-02-01 15:53:55 +0100 | [diff] [blame] | 587 | return -IPSET_ERR_INVALID_FAMILY; |
| 588 | |
| 589 | if (unlikely(!ip_set_optattr_netorder(tb, IPSET_ATTR_HASHSIZE) || |
| 590 | !ip_set_optattr_netorder(tb, IPSET_ATTR_MAXELEM) || |
| 591 | !ip_set_optattr_netorder(tb, IPSET_ATTR_TIMEOUT))) |
| 592 | return -IPSET_ERR_PROTOCOL; |
| 593 | |
| 594 | if (tb[IPSET_ATTR_HASHSIZE]) { |
| 595 | hashsize = ip_set_get_h32(tb[IPSET_ATTR_HASHSIZE]); |
| 596 | if (hashsize < IPSET_MIMINAL_HASHSIZE) |
| 597 | hashsize = IPSET_MIMINAL_HASHSIZE; |
| 598 | } |
| 599 | |
| 600 | if (tb[IPSET_ATTR_MAXELEM]) |
| 601 | maxelem = ip_set_get_h32(tb[IPSET_ATTR_MAXELEM]); |
| 602 | |
| 603 | h = kzalloc(sizeof(*h) |
| 604 | + sizeof(struct ip_set_hash_nets) |
Jan Engelhardt | c15f1c8 | 2012-02-14 00:24:10 +0100 | [diff] [blame] | 605 | * (set->family == NFPROTO_IPV4 ? 32 : 128), GFP_KERNEL); |
Jozsef Kadlecsik | 21f4502 | 2011-02-01 15:53:55 +0100 | [diff] [blame] | 606 | if (!h) |
| 607 | return -ENOMEM; |
| 608 | |
| 609 | h->maxelem = maxelem; |
| 610 | get_random_bytes(&h->initval, sizeof(h->initval)); |
| 611 | h->timeout = IPSET_NO_TIMEOUT; |
| 612 | |
| 613 | hbits = htable_bits(hashsize); |
Jozsef Kadlecsik | 26a5d3c | 2012-05-14 01:47:01 +0000 | [diff] [blame] | 614 | hsize = htable_size(hbits); |
| 615 | if (hsize == 0) { |
| 616 | kfree(h); |
| 617 | return -ENOMEM; |
| 618 | } |
| 619 | h->table = ip_set_alloc(hsize); |
Jozsef Kadlecsik | 21f4502 | 2011-02-01 15:53:55 +0100 | [diff] [blame] | 620 | if (!h->table) { |
| 621 | kfree(h); |
| 622 | return -ENOMEM; |
| 623 | } |
| 624 | h->table->htable_bits = hbits; |
| 625 | |
| 626 | set->data = h; |
| 627 | |
| 628 | if (tb[IPSET_ATTR_TIMEOUT]) { |
| 629 | h->timeout = ip_set_timeout_uget(tb[IPSET_ATTR_TIMEOUT]); |
| 630 | |
Jan Engelhardt | c15f1c8 | 2012-02-14 00:24:10 +0100 | [diff] [blame] | 631 | set->variant = set->family == NFPROTO_IPV4 |
Jozsef Kadlecsik | 21f4502 | 2011-02-01 15:53:55 +0100 | [diff] [blame] | 632 | ? &hash_netport4_tvariant : &hash_netport6_tvariant; |
| 633 | |
Jan Engelhardt | c15f1c8 | 2012-02-14 00:24:10 +0100 | [diff] [blame] | 634 | if (set->family == NFPROTO_IPV4) |
Jozsef Kadlecsik | 21f4502 | 2011-02-01 15:53:55 +0100 | [diff] [blame] | 635 | hash_netport4_gc_init(set); |
| 636 | else |
| 637 | hash_netport6_gc_init(set); |
| 638 | } else { |
Jan Engelhardt | c15f1c8 | 2012-02-14 00:24:10 +0100 | [diff] [blame] | 639 | set->variant = set->family == NFPROTO_IPV4 |
Jozsef Kadlecsik | 21f4502 | 2011-02-01 15:53:55 +0100 | [diff] [blame] | 640 | ? &hash_netport4_variant : &hash_netport6_variant; |
| 641 | } |
| 642 | |
| 643 | pr_debug("create %s hashsize %u (%u) maxelem %u: %p(%p)\n", |
| 644 | set->name, jhash_size(h->table->htable_bits), |
| 645 | h->table->htable_bits, h->maxelem, set->data, h->table); |
| 646 | |
| 647 | return 0; |
| 648 | } |
| 649 | |
| 650 | static struct ip_set_type hash_netport_type __read_mostly = { |
| 651 | .name = "hash:net,port", |
| 652 | .protocol = IPSET_PROTOCOL, |
Jozsef Kadlecsik | 3e0304a | 2012-09-21 22:02:36 +0200 | [diff] [blame] | 653 | .features = IPSET_TYPE_IP | IPSET_TYPE_PORT | IPSET_TYPE_NOMATCH, |
Jozsef Kadlecsik | 21f4502 | 2011-02-01 15:53:55 +0100 | [diff] [blame] | 654 | .dimension = IPSET_DIM_TWO, |
Jan Engelhardt | c15f1c8 | 2012-02-14 00:24:10 +0100 | [diff] [blame] | 655 | .family = NFPROTO_UNSPEC, |
Jozsef Kadlecsik | 10111a6 | 2012-09-21 21:59:32 +0200 | [diff] [blame] | 656 | .revision_min = REVISION_MIN, |
| 657 | .revision_max = REVISION_MAX, |
Jozsef Kadlecsik | 21f4502 | 2011-02-01 15:53:55 +0100 | [diff] [blame] | 658 | .create = hash_netport_create, |
| 659 | .create_policy = { |
| 660 | [IPSET_ATTR_HASHSIZE] = { .type = NLA_U32 }, |
| 661 | [IPSET_ATTR_MAXELEM] = { .type = NLA_U32 }, |
| 662 | [IPSET_ATTR_PROBES] = { .type = NLA_U8 }, |
| 663 | [IPSET_ATTR_RESIZE] = { .type = NLA_U8 }, |
| 664 | [IPSET_ATTR_PROTO] = { .type = NLA_U8 }, |
| 665 | [IPSET_ATTR_TIMEOUT] = { .type = NLA_U32 }, |
| 666 | }, |
| 667 | .adt_policy = { |
| 668 | [IPSET_ATTR_IP] = { .type = NLA_NESTED }, |
Jozsef Kadlecsik | d0d9e0a | 2011-06-16 18:52:41 +0200 | [diff] [blame] | 669 | [IPSET_ATTR_IP_TO] = { .type = NLA_NESTED }, |
Jozsef Kadlecsik | 21f4502 | 2011-02-01 15:53:55 +0100 | [diff] [blame] | 670 | [IPSET_ATTR_PORT] = { .type = NLA_U16 }, |
| 671 | [IPSET_ATTR_PORT_TO] = { .type = NLA_U16 }, |
| 672 | [IPSET_ATTR_PROTO] = { .type = NLA_U8 }, |
| 673 | [IPSET_ATTR_CIDR] = { .type = NLA_U8 }, |
| 674 | [IPSET_ATTR_TIMEOUT] = { .type = NLA_U32 }, |
| 675 | [IPSET_ATTR_LINENO] = { .type = NLA_U32 }, |
Jozsef Kadlecsik | 2a7cef2 | 2012-01-14 17:16:36 +0100 | [diff] [blame] | 676 | [IPSET_ATTR_CADT_FLAGS] = { .type = NLA_U32 }, |
Jozsef Kadlecsik | 21f4502 | 2011-02-01 15:53:55 +0100 | [diff] [blame] | 677 | }, |
| 678 | .me = THIS_MODULE, |
| 679 | }; |
| 680 | |
| 681 | static int __init |
| 682 | hash_netport_init(void) |
| 683 | { |
| 684 | return ip_set_type_register(&hash_netport_type); |
| 685 | } |
| 686 | |
| 687 | static void __exit |
| 688 | hash_netport_fini(void) |
| 689 | { |
| 690 | ip_set_type_unregister(&hash_netport_type); |
| 691 | } |
| 692 | |
| 693 | module_init(hash_netport_init); |
| 694 | module_exit(hash_netport_fini); |