Jozsef Kadlecsik | 5d50e1d8 | 2013-04-08 22:50:55 +0200 | [diff] [blame] | 1 | /* Copyright (C) 2003-2013 Jozsef Kadlecsik <kadlec@blackhole.kfki.hu> |
Jozsef Kadlecsik | 5663bc3 | 2011-02-01 15:41:26 +0100 | [diff] [blame] | 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:ip,port,ip 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 | 5663bc3 | 2011-02-01 15:41:26 +0100 | [diff] [blame] | 15 | #include <linux/random.h> |
| 16 | #include <net/ip.h> |
| 17 | #include <net/ipv6.h> |
| 18 | #include <net/netlink.h> |
| 19 | #include <net/tcp.h> |
| 20 | |
| 21 | #include <linux/netfilter.h> |
| 22 | #include <linux/netfilter/ipset/pfxlen.h> |
| 23 | #include <linux/netfilter/ipset/ip_set.h> |
Jozsef Kadlecsik | 5663bc3 | 2011-02-01 15:41:26 +0100 | [diff] [blame] | 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 |
Jozsef Kadlecsik | 00d71b2 | 2013-04-08 23:11:02 +0200 | [diff] [blame^] | 28 | /* 1 SCTP and UDPLITE support added */ |
| 29 | #define REVISION_MAX 2 /* Counters support added */ |
Jozsef Kadlecsik | 10111a6 | 2012-09-21 21:59:32 +0200 | [diff] [blame] | 30 | |
Jozsef Kadlecsik | 5663bc3 | 2011-02-01 15:41:26 +0100 | [diff] [blame] | 31 | MODULE_LICENSE("GPL"); |
| 32 | MODULE_AUTHOR("Jozsef Kadlecsik <kadlec@blackhole.kfki.hu>"); |
Jozsef Kadlecsik | 10111a6 | 2012-09-21 21:59:32 +0200 | [diff] [blame] | 33 | IP_SET_MODULE_DESC("hash:ip,port,ip", REVISION_MIN, REVISION_MAX); |
Jozsef Kadlecsik | 5663bc3 | 2011-02-01 15:41:26 +0100 | [diff] [blame] | 34 | MODULE_ALIAS("ip_set_hash:ip,port,ip"); |
| 35 | |
| 36 | /* Type specific function prefix */ |
Jozsef Kadlecsik | 5d50e1d8 | 2013-04-08 22:50:55 +0200 | [diff] [blame] | 37 | #define HTYPE hash_ipportip |
Jozsef Kadlecsik | 5663bc3 | 2011-02-01 15:41:26 +0100 | [diff] [blame] | 38 | |
Jozsef Kadlecsik | 5d50e1d8 | 2013-04-08 22:50:55 +0200 | [diff] [blame] | 39 | /* IPv4 variants */ |
Jozsef Kadlecsik | 5663bc3 | 2011-02-01 15:41:26 +0100 | [diff] [blame] | 40 | |
Jozsef Kadlecsik | 5d50e1d8 | 2013-04-08 22:50:55 +0200 | [diff] [blame] | 41 | /* Member elements */ |
Jozsef Kadlecsik | 5663bc3 | 2011-02-01 15:41:26 +0100 | [diff] [blame] | 42 | struct hash_ipportip4_elem { |
| 43 | __be32 ip; |
| 44 | __be32 ip2; |
| 45 | __be16 port; |
| 46 | u8 proto; |
| 47 | u8 padding; |
| 48 | }; |
| 49 | |
Jozsef Kadlecsik | 5d50e1d8 | 2013-04-08 22:50:55 +0200 | [diff] [blame] | 50 | struct hash_ipportip4t_elem { |
Jozsef Kadlecsik | 5663bc3 | 2011-02-01 15:41:26 +0100 | [diff] [blame] | 51 | __be32 ip; |
| 52 | __be32 ip2; |
| 53 | __be16 port; |
| 54 | u8 proto; |
| 55 | u8 padding; |
| 56 | unsigned long timeout; |
| 57 | }; |
| 58 | |
Jozsef Kadlecsik | 00d71b2 | 2013-04-08 23:11:02 +0200 | [diff] [blame^] | 59 | struct hash_ipportip4c_elem { |
| 60 | __be32 ip; |
| 61 | __be32 ip2; |
| 62 | __be16 port; |
| 63 | u8 proto; |
| 64 | u8 padding; |
| 65 | struct ip_set_counter counter; |
| 66 | }; |
| 67 | |
| 68 | struct hash_ipportip4ct_elem { |
| 69 | __be32 ip; |
| 70 | __be32 ip2; |
| 71 | __be16 port; |
| 72 | u8 proto; |
| 73 | u8 padding; |
| 74 | struct ip_set_counter counter; |
| 75 | unsigned long timeout; |
| 76 | }; |
| 77 | |
Jozsef Kadlecsik | 5663bc3 | 2011-02-01 15:41:26 +0100 | [diff] [blame] | 78 | static inline bool |
| 79 | hash_ipportip4_data_equal(const struct hash_ipportip4_elem *ip1, |
Jozsef Kadlecsik | 89dc79b | 2011-07-21 12:06:18 +0200 | [diff] [blame] | 80 | const struct hash_ipportip4_elem *ip2, |
| 81 | u32 *multi) |
Jozsef Kadlecsik | 5663bc3 | 2011-02-01 15:41:26 +0100 | [diff] [blame] | 82 | { |
| 83 | return ip1->ip == ip2->ip && |
| 84 | ip1->ip2 == ip2->ip2 && |
| 85 | ip1->port == ip2->port && |
| 86 | ip1->proto == ip2->proto; |
| 87 | } |
| 88 | |
Jozsef Kadlecsik | 5663bc3 | 2011-02-01 15:41:26 +0100 | [diff] [blame] | 89 | static bool |
| 90 | hash_ipportip4_data_list(struct sk_buff *skb, |
| 91 | const struct hash_ipportip4_elem *data) |
| 92 | { |
David S. Miller | 7cf7899 | 2012-04-01 19:54:46 -0400 | [diff] [blame] | 93 | if (nla_put_ipaddr4(skb, IPSET_ATTR_IP, data->ip) || |
| 94 | nla_put_ipaddr4(skb, IPSET_ATTR_IP2, data->ip2) || |
| 95 | nla_put_net16(skb, IPSET_ATTR_PORT, data->port) || |
| 96 | nla_put_u8(skb, IPSET_ATTR_PROTO, data->proto)) |
| 97 | goto nla_put_failure; |
Jozsef Kadlecsik | 5663bc3 | 2011-02-01 15:41:26 +0100 | [diff] [blame] | 98 | return 0; |
| 99 | |
| 100 | nla_put_failure: |
| 101 | return 1; |
| 102 | } |
| 103 | |
Jozsef Kadlecsik | 3d14b17 | 2011-06-16 18:49:17 +0200 | [diff] [blame] | 104 | static inline void |
Jozsef Kadlecsik | 5d50e1d8 | 2013-04-08 22:50:55 +0200 | [diff] [blame] | 105 | hash_ipportip4_data_next(struct hash_ipportip4_elem *next, |
Jozsef Kadlecsik | 3d14b17 | 2011-06-16 18:49:17 +0200 | [diff] [blame] | 106 | const struct hash_ipportip4_elem *d) |
| 107 | { |
Jozsef Kadlecsik | 5d50e1d8 | 2013-04-08 22:50:55 +0200 | [diff] [blame] | 108 | next->ip = d->ip; |
| 109 | next->port = d->port; |
Jozsef Kadlecsik | 3d14b17 | 2011-06-16 18:49:17 +0200 | [diff] [blame] | 110 | } |
| 111 | |
Jozsef Kadlecsik | 5d50e1d8 | 2013-04-08 22:50:55 +0200 | [diff] [blame] | 112 | /* Common functions */ |
| 113 | #define MTYPE hash_ipportip4 |
| 114 | #define PF 4 |
| 115 | #define HOST_MASK 32 |
| 116 | #include "ip_set_hash_gen.h" |
| 117 | |
Jozsef Kadlecsik | 5663bc3 | 2011-02-01 15:41:26 +0100 | [diff] [blame] | 118 | static int |
| 119 | hash_ipportip4_kadt(struct ip_set *set, const struct sk_buff *skb, |
Jozsef Kadlecsik | b66554c | 2011-06-16 18:56:47 +0200 | [diff] [blame] | 120 | const struct xt_action_param *par, |
Jozsef Kadlecsik | 5d50e1d8 | 2013-04-08 22:50:55 +0200 | [diff] [blame] | 121 | enum ipset_adt adt, struct ip_set_adt_opt *opt) |
Jozsef Kadlecsik | 5663bc3 | 2011-02-01 15:41:26 +0100 | [diff] [blame] | 122 | { |
Jozsef Kadlecsik | 5d50e1d8 | 2013-04-08 22:50:55 +0200 | [diff] [blame] | 123 | const struct hash_ipportip *h = set->data; |
Jozsef Kadlecsik | 5663bc3 | 2011-02-01 15:41:26 +0100 | [diff] [blame] | 124 | ipset_adtfn adtfn = set->variant->adt[adt]; |
Jozsef Kadlecsik | 5d50e1d8 | 2013-04-08 22:50:55 +0200 | [diff] [blame] | 125 | struct hash_ipportip4_elem e = { }; |
| 126 | struct ip_set_ext ext = IP_SET_INIT_KEXT(skb, opt, h); |
Jozsef Kadlecsik | 5663bc3 | 2011-02-01 15:41:26 +0100 | [diff] [blame] | 127 | |
Jozsef Kadlecsik | ac8cc92 | 2011-06-16 18:42:40 +0200 | [diff] [blame] | 128 | if (!ip_set_get_ip4_port(skb, opt->flags & IPSET_DIM_TWO_SRC, |
Jozsef Kadlecsik | 5d50e1d8 | 2013-04-08 22:50:55 +0200 | [diff] [blame] | 129 | &e.port, &e.proto)) |
Jozsef Kadlecsik | 5663bc3 | 2011-02-01 15:41:26 +0100 | [diff] [blame] | 130 | return -EINVAL; |
| 131 | |
Jozsef Kadlecsik | 5d50e1d8 | 2013-04-08 22:50:55 +0200 | [diff] [blame] | 132 | ip4addrptr(skb, opt->flags & IPSET_DIM_ONE_SRC, &e.ip); |
| 133 | ip4addrptr(skb, opt->flags & IPSET_DIM_THREE_SRC, &e.ip2); |
| 134 | return adtfn(set, &e, &ext, &opt->ext, opt->cmdflags); |
Jozsef Kadlecsik | 5663bc3 | 2011-02-01 15:41:26 +0100 | [diff] [blame] | 135 | } |
| 136 | |
| 137 | static int |
| 138 | hash_ipportip4_uadt(struct ip_set *set, struct nlattr *tb[], |
Jozsef Kadlecsik | 3d14b17 | 2011-06-16 18:49:17 +0200 | [diff] [blame] | 139 | enum ipset_adt adt, u32 *lineno, u32 flags, bool retried) |
Jozsef Kadlecsik | 5663bc3 | 2011-02-01 15:41:26 +0100 | [diff] [blame] | 140 | { |
Jozsef Kadlecsik | 5d50e1d8 | 2013-04-08 22:50:55 +0200 | [diff] [blame] | 141 | const struct hash_ipportip *h = set->data; |
Jozsef Kadlecsik | 5663bc3 | 2011-02-01 15:41:26 +0100 | [diff] [blame] | 142 | ipset_adtfn adtfn = set->variant->adt[adt]; |
Jozsef Kadlecsik | 5d50e1d8 | 2013-04-08 22:50:55 +0200 | [diff] [blame] | 143 | struct hash_ipportip4_elem e = { }; |
| 144 | struct ip_set_ext ext = IP_SET_INIT_UEXT(h); |
Jozsef Kadlecsik | 4fe198e | 2012-11-19 06:42:21 +0000 | [diff] [blame] | 145 | u32 ip, ip_to, p = 0, port, port_to; |
Jozsef Kadlecsik | 5e0c1eb | 2011-03-20 15:33:26 +0100 | [diff] [blame] | 146 | bool with_ports = false; |
Jozsef Kadlecsik | 5663bc3 | 2011-02-01 15:41:26 +0100 | [diff] [blame] | 147 | int ret; |
| 148 | |
| 149 | if (unlikely(!tb[IPSET_ATTR_IP] || !tb[IPSET_ATTR_IP2] || |
| 150 | !ip_set_attr_netorder(tb, IPSET_ATTR_PORT) || |
| 151 | !ip_set_optattr_netorder(tb, IPSET_ATTR_PORT_TO) || |
Jozsef Kadlecsik | 00d71b2 | 2013-04-08 23:11:02 +0200 | [diff] [blame^] | 152 | !ip_set_optattr_netorder(tb, IPSET_ATTR_TIMEOUT) || |
| 153 | !ip_set_optattr_netorder(tb, IPSET_ATTR_PACKETS) || |
| 154 | !ip_set_optattr_netorder(tb, IPSET_ATTR_BYTES))) |
Jozsef Kadlecsik | 5663bc3 | 2011-02-01 15:41:26 +0100 | [diff] [blame] | 155 | return -IPSET_ERR_PROTOCOL; |
| 156 | |
| 157 | if (tb[IPSET_ATTR_LINENO]) |
| 158 | *lineno = nla_get_u32(tb[IPSET_ATTR_LINENO]); |
| 159 | |
Jozsef Kadlecsik | 5d50e1d8 | 2013-04-08 22:50:55 +0200 | [diff] [blame] | 160 | ret = ip_set_get_ipaddr4(tb[IPSET_ATTR_IP], &e.ip) || |
| 161 | ip_set_get_extensions(set, tb, &ext); |
Jozsef Kadlecsik | 5663bc3 | 2011-02-01 15:41:26 +0100 | [diff] [blame] | 162 | if (ret) |
| 163 | return ret; |
| 164 | |
Jozsef Kadlecsik | 5d50e1d8 | 2013-04-08 22:50:55 +0200 | [diff] [blame] | 165 | ret = ip_set_get_ipaddr4(tb[IPSET_ATTR_IP2], &e.ip2); |
Jozsef Kadlecsik | 5663bc3 | 2011-02-01 15:41:26 +0100 | [diff] [blame] | 166 | if (ret) |
| 167 | return ret; |
| 168 | |
| 169 | if (tb[IPSET_ATTR_PORT]) |
Jozsef Kadlecsik | 5d50e1d8 | 2013-04-08 22:50:55 +0200 | [diff] [blame] | 170 | e.port = nla_get_be16(tb[IPSET_ATTR_PORT]); |
Jozsef Kadlecsik | 5663bc3 | 2011-02-01 15:41:26 +0100 | [diff] [blame] | 171 | else |
| 172 | return -IPSET_ERR_PROTOCOL; |
| 173 | |
| 174 | if (tb[IPSET_ATTR_PROTO]) { |
Jozsef Kadlecsik | 5d50e1d8 | 2013-04-08 22:50:55 +0200 | [diff] [blame] | 175 | e.proto = nla_get_u8(tb[IPSET_ATTR_PROTO]); |
| 176 | with_ports = ip_set_proto_with_ports(e.proto); |
Jozsef Kadlecsik | 5663bc3 | 2011-02-01 15:41:26 +0100 | [diff] [blame] | 177 | |
Jozsef Kadlecsik | 5d50e1d8 | 2013-04-08 22:50:55 +0200 | [diff] [blame] | 178 | if (e.proto == 0) |
Jozsef Kadlecsik | 5663bc3 | 2011-02-01 15:41:26 +0100 | [diff] [blame] | 179 | return -IPSET_ERR_INVALID_PROTO; |
| 180 | } else |
| 181 | return -IPSET_ERR_MISSING_PROTO; |
| 182 | |
Jozsef Kadlecsik | 5d50e1d8 | 2013-04-08 22:50:55 +0200 | [diff] [blame] | 183 | if (!(with_ports || e.proto == IPPROTO_ICMP)) |
| 184 | e.port = 0; |
Jozsef Kadlecsik | 5663bc3 | 2011-02-01 15:41:26 +0100 | [diff] [blame] | 185 | |
| 186 | if (adt == IPSET_TEST || |
Jozsef Kadlecsik | 5663bc3 | 2011-02-01 15:41:26 +0100 | [diff] [blame] | 187 | !(tb[IPSET_ATTR_IP_TO] || tb[IPSET_ATTR_CIDR] || |
| 188 | tb[IPSET_ATTR_PORT_TO])) { |
Jozsef Kadlecsik | 5d50e1d8 | 2013-04-08 22:50:55 +0200 | [diff] [blame] | 189 | ret = adtfn(set, &e, &ext, &ext, flags); |
Jozsef Kadlecsik | 5663bc3 | 2011-02-01 15:41:26 +0100 | [diff] [blame] | 190 | return ip_set_eexist(ret, flags) ? 0 : ret; |
| 191 | } |
| 192 | |
Jozsef Kadlecsik | 5d50e1d8 | 2013-04-08 22:50:55 +0200 | [diff] [blame] | 193 | ip_to = ip = ntohl(e.ip); |
Jozsef Kadlecsik | 5663bc3 | 2011-02-01 15:41:26 +0100 | [diff] [blame] | 194 | if (tb[IPSET_ATTR_IP_TO]) { |
| 195 | ret = ip_set_get_hostipaddr4(tb[IPSET_ATTR_IP_TO], &ip_to); |
| 196 | if (ret) |
| 197 | return ret; |
| 198 | if (ip > ip_to) |
| 199 | swap(ip, ip_to); |
| 200 | } else if (tb[IPSET_ATTR_CIDR]) { |
| 201 | u8 cidr = nla_get_u8(tb[IPSET_ATTR_CIDR]); |
| 202 | |
Jozsef Kadlecsik | b9fed74 | 2012-09-04 17:45:59 +0200 | [diff] [blame] | 203 | if (!cidr || cidr > 32) |
Jozsef Kadlecsik | 5663bc3 | 2011-02-01 15:41:26 +0100 | [diff] [blame] | 204 | return -IPSET_ERR_INVALID_CIDR; |
Jozsef Kadlecsik | e6146e8 | 2011-06-16 18:55:58 +0200 | [diff] [blame] | 205 | ip_set_mask_from_to(ip, ip_to, cidr); |
Jozsef Kadlecsik | 4fe198e | 2012-11-19 06:42:21 +0000 | [diff] [blame] | 206 | } |
Jozsef Kadlecsik | 5663bc3 | 2011-02-01 15:41:26 +0100 | [diff] [blame] | 207 | |
Jozsef Kadlecsik | 5d50e1d8 | 2013-04-08 22:50:55 +0200 | [diff] [blame] | 208 | port_to = port = ntohs(e.port); |
Jozsef Kadlecsik | 5e0c1eb | 2011-03-20 15:33:26 +0100 | [diff] [blame] | 209 | if (with_ports && tb[IPSET_ATTR_PORT_TO]) { |
Jozsef Kadlecsik | 5663bc3 | 2011-02-01 15:41:26 +0100 | [diff] [blame] | 210 | port_to = ip_set_get_h16(tb[IPSET_ATTR_PORT_TO]); |
| 211 | if (port > port_to) |
| 212 | swap(port, port_to); |
Jozsef Kadlecsik | 5e0c1eb | 2011-03-20 15:33:26 +0100 | [diff] [blame] | 213 | } |
Jozsef Kadlecsik | 5663bc3 | 2011-02-01 15:41:26 +0100 | [diff] [blame] | 214 | |
Jozsef Kadlecsik | 3d14b17 | 2011-06-16 18:49:17 +0200 | [diff] [blame] | 215 | if (retried) |
Jozsef Kadlecsik | 6e27c9b | 2012-09-21 21:44:58 +0200 | [diff] [blame] | 216 | ip = ntohl(h->next.ip); |
Jozsef Kadlecsik | 3d14b17 | 2011-06-16 18:49:17 +0200 | [diff] [blame] | 217 | for (; !before(ip_to, ip); ip++) { |
Jozsef Kadlecsik | 6e27c9b | 2012-09-21 21:44:58 +0200 | [diff] [blame] | 218 | p = retried && ip == ntohl(h->next.ip) ? ntohs(h->next.port) |
| 219 | : port; |
Jozsef Kadlecsik | 3d14b17 | 2011-06-16 18:49:17 +0200 | [diff] [blame] | 220 | for (; p <= port_to; p++) { |
Jozsef Kadlecsik | 5d50e1d8 | 2013-04-08 22:50:55 +0200 | [diff] [blame] | 221 | e.ip = htonl(ip); |
| 222 | e.port = htons(p); |
| 223 | ret = adtfn(set, &e, &ext, &ext, flags); |
Jozsef Kadlecsik | 5663bc3 | 2011-02-01 15:41:26 +0100 | [diff] [blame] | 224 | |
| 225 | if (ret && !ip_set_eexist(ret, flags)) |
| 226 | return ret; |
| 227 | else |
| 228 | ret = 0; |
| 229 | } |
Jozsef Kadlecsik | 3d14b17 | 2011-06-16 18:49:17 +0200 | [diff] [blame] | 230 | } |
Jozsef Kadlecsik | 5663bc3 | 2011-02-01 15:41:26 +0100 | [diff] [blame] | 231 | return ret; |
| 232 | } |
| 233 | |
Jozsef Kadlecsik | 5d50e1d8 | 2013-04-08 22:50:55 +0200 | [diff] [blame] | 234 | /* IPv6 variants */ |
Jozsef Kadlecsik | 5663bc3 | 2011-02-01 15:41:26 +0100 | [diff] [blame] | 235 | |
| 236 | struct hash_ipportip6_elem { |
| 237 | union nf_inet_addr ip; |
| 238 | union nf_inet_addr ip2; |
| 239 | __be16 port; |
| 240 | u8 proto; |
| 241 | u8 padding; |
| 242 | }; |
| 243 | |
Jozsef Kadlecsik | 5d50e1d8 | 2013-04-08 22:50:55 +0200 | [diff] [blame] | 244 | struct hash_ipportip6t_elem { |
Jozsef Kadlecsik | 5663bc3 | 2011-02-01 15:41:26 +0100 | [diff] [blame] | 245 | union nf_inet_addr ip; |
| 246 | union nf_inet_addr ip2; |
| 247 | __be16 port; |
| 248 | u8 proto; |
| 249 | u8 padding; |
| 250 | unsigned long timeout; |
| 251 | }; |
| 252 | |
Jozsef Kadlecsik | 00d71b2 | 2013-04-08 23:11:02 +0200 | [diff] [blame^] | 253 | struct hash_ipportip6c_elem { |
| 254 | union nf_inet_addr ip; |
| 255 | union nf_inet_addr ip2; |
| 256 | __be16 port; |
| 257 | u8 proto; |
| 258 | u8 padding; |
| 259 | struct ip_set_counter counter; |
| 260 | }; |
| 261 | |
| 262 | struct hash_ipportip6ct_elem { |
| 263 | union nf_inet_addr ip; |
| 264 | union nf_inet_addr ip2; |
| 265 | __be16 port; |
| 266 | u8 proto; |
| 267 | u8 padding; |
| 268 | struct ip_set_counter counter; |
| 269 | unsigned long timeout; |
| 270 | }; |
| 271 | |
Jozsef Kadlecsik | 5d50e1d8 | 2013-04-08 22:50:55 +0200 | [diff] [blame] | 272 | /* Common functions */ |
| 273 | |
Jozsef Kadlecsik | 5663bc3 | 2011-02-01 15:41:26 +0100 | [diff] [blame] | 274 | static inline bool |
| 275 | hash_ipportip6_data_equal(const struct hash_ipportip6_elem *ip1, |
Jozsef Kadlecsik | 89dc79b | 2011-07-21 12:06:18 +0200 | [diff] [blame] | 276 | const struct hash_ipportip6_elem *ip2, |
| 277 | u32 *multi) |
Jozsef Kadlecsik | 5663bc3 | 2011-02-01 15:41:26 +0100 | [diff] [blame] | 278 | { |
YOSHIFUJI Hideaki / 吉藤英明 | 29e3b16 | 2013-01-29 12:49:03 +0000 | [diff] [blame] | 279 | return ipv6_addr_equal(&ip1->ip.in6, &ip2->ip.in6) && |
| 280 | ipv6_addr_equal(&ip1->ip2.in6, &ip2->ip2.in6) && |
Jozsef Kadlecsik | 5663bc3 | 2011-02-01 15:41:26 +0100 | [diff] [blame] | 281 | ip1->port == ip2->port && |
| 282 | ip1->proto == ip2->proto; |
| 283 | } |
| 284 | |
Jozsef Kadlecsik | 5663bc3 | 2011-02-01 15:41:26 +0100 | [diff] [blame] | 285 | static bool |
| 286 | hash_ipportip6_data_list(struct sk_buff *skb, |
| 287 | const struct hash_ipportip6_elem *data) |
| 288 | { |
David S. Miller | 7cf7899 | 2012-04-01 19:54:46 -0400 | [diff] [blame] | 289 | if (nla_put_ipaddr6(skb, IPSET_ATTR_IP, &data->ip.in6) || |
| 290 | nla_put_ipaddr6(skb, IPSET_ATTR_IP2, &data->ip2.in6) || |
| 291 | nla_put_net16(skb, IPSET_ATTR_PORT, data->port) || |
| 292 | nla_put_u8(skb, IPSET_ATTR_PROTO, data->proto)) |
| 293 | goto nla_put_failure; |
Jozsef Kadlecsik | 5663bc3 | 2011-02-01 15:41:26 +0100 | [diff] [blame] | 294 | return 0; |
| 295 | |
| 296 | nla_put_failure: |
| 297 | return 1; |
| 298 | } |
| 299 | |
Jozsef Kadlecsik | 5d50e1d8 | 2013-04-08 22:50:55 +0200 | [diff] [blame] | 300 | static inline void |
| 301 | hash_ipportip6_data_next(struct hash_ipportip4_elem *next, |
| 302 | const struct hash_ipportip6_elem *d) |
Jozsef Kadlecsik | 5663bc3 | 2011-02-01 15:41:26 +0100 | [diff] [blame] | 303 | { |
Jozsef Kadlecsik | 5d50e1d8 | 2013-04-08 22:50:55 +0200 | [diff] [blame] | 304 | next->port = d->port; |
Jozsef Kadlecsik | 5663bc3 | 2011-02-01 15:41:26 +0100 | [diff] [blame] | 305 | } |
| 306 | |
Jozsef Kadlecsik | 5d50e1d8 | 2013-04-08 22:50:55 +0200 | [diff] [blame] | 307 | #undef MTYPE |
Jozsef Kadlecsik | 5663bc3 | 2011-02-01 15:41:26 +0100 | [diff] [blame] | 308 | #undef PF |
| 309 | #undef HOST_MASK |
| 310 | |
Jozsef Kadlecsik | 5d50e1d8 | 2013-04-08 22:50:55 +0200 | [diff] [blame] | 311 | #define MTYPE hash_ipportip6 |
Jozsef Kadlecsik | 5663bc3 | 2011-02-01 15:41:26 +0100 | [diff] [blame] | 312 | #define PF 6 |
| 313 | #define HOST_MASK 128 |
Jozsef Kadlecsik | 5d50e1d8 | 2013-04-08 22:50:55 +0200 | [diff] [blame] | 314 | #define IP_SET_EMIT_CREATE |
| 315 | #include "ip_set_hash_gen.h" |
Jozsef Kadlecsik | 3d14b17 | 2011-06-16 18:49:17 +0200 | [diff] [blame] | 316 | |
Jozsef Kadlecsik | 5663bc3 | 2011-02-01 15:41:26 +0100 | [diff] [blame] | 317 | static int |
| 318 | hash_ipportip6_kadt(struct ip_set *set, const struct sk_buff *skb, |
Jozsef Kadlecsik | b66554c | 2011-06-16 18:56:47 +0200 | [diff] [blame] | 319 | const struct xt_action_param *par, |
Jozsef Kadlecsik | 5d50e1d8 | 2013-04-08 22:50:55 +0200 | [diff] [blame] | 320 | enum ipset_adt adt, struct ip_set_adt_opt *opt) |
Jozsef Kadlecsik | 5663bc3 | 2011-02-01 15:41:26 +0100 | [diff] [blame] | 321 | { |
Jozsef Kadlecsik | 5d50e1d8 | 2013-04-08 22:50:55 +0200 | [diff] [blame] | 322 | const struct hash_ipportip *h = set->data; |
Jozsef Kadlecsik | 5663bc3 | 2011-02-01 15:41:26 +0100 | [diff] [blame] | 323 | ipset_adtfn adtfn = set->variant->adt[adt]; |
Jozsef Kadlecsik | 5d50e1d8 | 2013-04-08 22:50:55 +0200 | [diff] [blame] | 324 | struct hash_ipportip6_elem e = { }; |
| 325 | struct ip_set_ext ext = IP_SET_INIT_KEXT(skb, opt, h); |
Jozsef Kadlecsik | 5663bc3 | 2011-02-01 15:41:26 +0100 | [diff] [blame] | 326 | |
Jozsef Kadlecsik | ac8cc92 | 2011-06-16 18:42:40 +0200 | [diff] [blame] | 327 | if (!ip_set_get_ip6_port(skb, opt->flags & IPSET_DIM_TWO_SRC, |
Jozsef Kadlecsik | 5d50e1d8 | 2013-04-08 22:50:55 +0200 | [diff] [blame] | 328 | &e.port, &e.proto)) |
Jozsef Kadlecsik | 5663bc3 | 2011-02-01 15:41:26 +0100 | [diff] [blame] | 329 | return -EINVAL; |
| 330 | |
Jozsef Kadlecsik | 5d50e1d8 | 2013-04-08 22:50:55 +0200 | [diff] [blame] | 331 | ip6addrptr(skb, opt->flags & IPSET_DIM_ONE_SRC, &e.ip.in6); |
| 332 | ip6addrptr(skb, opt->flags & IPSET_DIM_THREE_SRC, &e.ip2.in6); |
| 333 | return adtfn(set, &e, &ext, &opt->ext, opt->cmdflags); |
Jozsef Kadlecsik | 5663bc3 | 2011-02-01 15:41:26 +0100 | [diff] [blame] | 334 | } |
| 335 | |
| 336 | static int |
| 337 | hash_ipportip6_uadt(struct ip_set *set, struct nlattr *tb[], |
Jozsef Kadlecsik | 3d14b17 | 2011-06-16 18:49:17 +0200 | [diff] [blame] | 338 | enum ipset_adt adt, u32 *lineno, u32 flags, bool retried) |
Jozsef Kadlecsik | 5663bc3 | 2011-02-01 15:41:26 +0100 | [diff] [blame] | 339 | { |
Jozsef Kadlecsik | 5d50e1d8 | 2013-04-08 22:50:55 +0200 | [diff] [blame] | 340 | const struct hash_ipportip *h = set->data; |
Jozsef Kadlecsik | 5663bc3 | 2011-02-01 15:41:26 +0100 | [diff] [blame] | 341 | ipset_adtfn adtfn = set->variant->adt[adt]; |
Jozsef Kadlecsik | 5d50e1d8 | 2013-04-08 22:50:55 +0200 | [diff] [blame] | 342 | struct hash_ipportip6_elem e = { }; |
| 343 | struct ip_set_ext ext = IP_SET_INIT_UEXT(h); |
Jozsef Kadlecsik | 5663bc3 | 2011-02-01 15:41:26 +0100 | [diff] [blame] | 344 | u32 port, port_to; |
Jozsef Kadlecsik | 5e0c1eb | 2011-03-20 15:33:26 +0100 | [diff] [blame] | 345 | bool with_ports = false; |
Jozsef Kadlecsik | 5663bc3 | 2011-02-01 15:41:26 +0100 | [diff] [blame] | 346 | int ret; |
| 347 | |
| 348 | if (unlikely(!tb[IPSET_ATTR_IP] || !tb[IPSET_ATTR_IP2] || |
| 349 | !ip_set_attr_netorder(tb, IPSET_ATTR_PORT) || |
| 350 | !ip_set_optattr_netorder(tb, IPSET_ATTR_PORT_TO) || |
| 351 | !ip_set_optattr_netorder(tb, IPSET_ATTR_TIMEOUT) || |
Jozsef Kadlecsik | 00d71b2 | 2013-04-08 23:11:02 +0200 | [diff] [blame^] | 352 | !ip_set_optattr_netorder(tb, IPSET_ATTR_PACKETS) || |
| 353 | !ip_set_optattr_netorder(tb, IPSET_ATTR_BYTES) || |
Jozsef Kadlecsik | 5663bc3 | 2011-02-01 15:41:26 +0100 | [diff] [blame] | 354 | tb[IPSET_ATTR_IP_TO] || |
| 355 | tb[IPSET_ATTR_CIDR])) |
| 356 | return -IPSET_ERR_PROTOCOL; |
| 357 | |
| 358 | if (tb[IPSET_ATTR_LINENO]) |
| 359 | *lineno = nla_get_u32(tb[IPSET_ATTR_LINENO]); |
| 360 | |
Jozsef Kadlecsik | 5d50e1d8 | 2013-04-08 22:50:55 +0200 | [diff] [blame] | 361 | ret = ip_set_get_ipaddr6(tb[IPSET_ATTR_IP], &e.ip) || |
| 362 | ip_set_get_extensions(set, tb, &ext); |
Jozsef Kadlecsik | 5663bc3 | 2011-02-01 15:41:26 +0100 | [diff] [blame] | 363 | if (ret) |
| 364 | return ret; |
| 365 | |
Jozsef Kadlecsik | 5d50e1d8 | 2013-04-08 22:50:55 +0200 | [diff] [blame] | 366 | ret = ip_set_get_ipaddr6(tb[IPSET_ATTR_IP2], &e.ip2); |
Jozsef Kadlecsik | 5663bc3 | 2011-02-01 15:41:26 +0100 | [diff] [blame] | 367 | if (ret) |
| 368 | return ret; |
| 369 | |
| 370 | if (tb[IPSET_ATTR_PORT]) |
Jozsef Kadlecsik | 5d50e1d8 | 2013-04-08 22:50:55 +0200 | [diff] [blame] | 371 | e.port = nla_get_be16(tb[IPSET_ATTR_PORT]); |
Jozsef Kadlecsik | 5663bc3 | 2011-02-01 15:41:26 +0100 | [diff] [blame] | 372 | else |
| 373 | return -IPSET_ERR_PROTOCOL; |
| 374 | |
| 375 | if (tb[IPSET_ATTR_PROTO]) { |
Jozsef Kadlecsik | 5d50e1d8 | 2013-04-08 22:50:55 +0200 | [diff] [blame] | 376 | e.proto = nla_get_u8(tb[IPSET_ATTR_PROTO]); |
| 377 | with_ports = ip_set_proto_with_ports(e.proto); |
Jozsef Kadlecsik | 5663bc3 | 2011-02-01 15:41:26 +0100 | [diff] [blame] | 378 | |
Jozsef Kadlecsik | 5d50e1d8 | 2013-04-08 22:50:55 +0200 | [diff] [blame] | 379 | if (e.proto == 0) |
Jozsef Kadlecsik | 5663bc3 | 2011-02-01 15:41:26 +0100 | [diff] [blame] | 380 | return -IPSET_ERR_INVALID_PROTO; |
| 381 | } else |
| 382 | return -IPSET_ERR_MISSING_PROTO; |
| 383 | |
Jozsef Kadlecsik | 5d50e1d8 | 2013-04-08 22:50:55 +0200 | [diff] [blame] | 384 | if (!(with_ports || e.proto == IPPROTO_ICMPV6)) |
| 385 | e.port = 0; |
Jozsef Kadlecsik | 5663bc3 | 2011-02-01 15:41:26 +0100 | [diff] [blame] | 386 | |
Jozsef Kadlecsik | 5e0c1eb | 2011-03-20 15:33:26 +0100 | [diff] [blame] | 387 | if (adt == IPSET_TEST || !with_ports || !tb[IPSET_ATTR_PORT_TO]) { |
Jozsef Kadlecsik | 5d50e1d8 | 2013-04-08 22:50:55 +0200 | [diff] [blame] | 388 | ret = adtfn(set, &e, &ext, &ext, flags); |
Jozsef Kadlecsik | 5663bc3 | 2011-02-01 15:41:26 +0100 | [diff] [blame] | 389 | return ip_set_eexist(ret, flags) ? 0 : ret; |
| 390 | } |
| 391 | |
Jozsef Kadlecsik | 5d50e1d8 | 2013-04-08 22:50:55 +0200 | [diff] [blame] | 392 | port = ntohs(e.port); |
Jozsef Kadlecsik | 5663bc3 | 2011-02-01 15:41:26 +0100 | [diff] [blame] | 393 | port_to = ip_set_get_h16(tb[IPSET_ATTR_PORT_TO]); |
| 394 | if (port > port_to) |
| 395 | swap(port, port_to); |
| 396 | |
Jozsef Kadlecsik | 3d14b17 | 2011-06-16 18:49:17 +0200 | [diff] [blame] | 397 | if (retried) |
Jozsef Kadlecsik | 6e27c9b | 2012-09-21 21:44:58 +0200 | [diff] [blame] | 398 | port = ntohs(h->next.port); |
Jozsef Kadlecsik | 5663bc3 | 2011-02-01 15:41:26 +0100 | [diff] [blame] | 399 | for (; port <= port_to; port++) { |
Jozsef Kadlecsik | 5d50e1d8 | 2013-04-08 22:50:55 +0200 | [diff] [blame] | 400 | e.port = htons(port); |
| 401 | ret = adtfn(set, &e, &ext, &ext, flags); |
Jozsef Kadlecsik | 5663bc3 | 2011-02-01 15:41:26 +0100 | [diff] [blame] | 402 | |
| 403 | if (ret && !ip_set_eexist(ret, flags)) |
| 404 | return ret; |
| 405 | else |
| 406 | ret = 0; |
| 407 | } |
| 408 | return ret; |
| 409 | } |
| 410 | |
Jozsef Kadlecsik | 5663bc3 | 2011-02-01 15:41:26 +0100 | [diff] [blame] | 411 | static struct ip_set_type hash_ipportip_type __read_mostly = { |
| 412 | .name = "hash:ip,port,ip", |
| 413 | .protocol = IPSET_PROTOCOL, |
| 414 | .features = IPSET_TYPE_IP | IPSET_TYPE_PORT | IPSET_TYPE_IP2, |
| 415 | .dimension = IPSET_DIM_THREE, |
Jan Engelhardt | c15f1c8 | 2012-02-14 00:24:10 +0100 | [diff] [blame] | 416 | .family = NFPROTO_UNSPEC, |
Jozsef Kadlecsik | 10111a6 | 2012-09-21 21:59:32 +0200 | [diff] [blame] | 417 | .revision_min = REVISION_MIN, |
| 418 | .revision_max = REVISION_MAX, |
Jozsef Kadlecsik | 5663bc3 | 2011-02-01 15:41:26 +0100 | [diff] [blame] | 419 | .create = hash_ipportip_create, |
| 420 | .create_policy = { |
| 421 | [IPSET_ATTR_HASHSIZE] = { .type = NLA_U32 }, |
| 422 | [IPSET_ATTR_MAXELEM] = { .type = NLA_U32 }, |
| 423 | [IPSET_ATTR_PROBES] = { .type = NLA_U8 }, |
| 424 | [IPSET_ATTR_RESIZE] = { .type = NLA_U8 }, |
| 425 | [IPSET_ATTR_TIMEOUT] = { .type = NLA_U32 }, |
Jozsef Kadlecsik | 00d71b2 | 2013-04-08 23:11:02 +0200 | [diff] [blame^] | 426 | [IPSET_ATTR_CADT_FLAGS] = { .type = NLA_U32 }, |
Jozsef Kadlecsik | 5663bc3 | 2011-02-01 15:41:26 +0100 | [diff] [blame] | 427 | }, |
| 428 | .adt_policy = { |
| 429 | [IPSET_ATTR_IP] = { .type = NLA_NESTED }, |
| 430 | [IPSET_ATTR_IP_TO] = { .type = NLA_NESTED }, |
| 431 | [IPSET_ATTR_IP2] = { .type = NLA_NESTED }, |
| 432 | [IPSET_ATTR_PORT] = { .type = NLA_U16 }, |
| 433 | [IPSET_ATTR_PORT_TO] = { .type = NLA_U16 }, |
| 434 | [IPSET_ATTR_CIDR] = { .type = NLA_U8 }, |
| 435 | [IPSET_ATTR_PROTO] = { .type = NLA_U8 }, |
| 436 | [IPSET_ATTR_TIMEOUT] = { .type = NLA_U32 }, |
| 437 | [IPSET_ATTR_LINENO] = { .type = NLA_U32 }, |
Jozsef Kadlecsik | 00d71b2 | 2013-04-08 23:11:02 +0200 | [diff] [blame^] | 438 | [IPSET_ATTR_BYTES] = { .type = NLA_U64 }, |
| 439 | [IPSET_ATTR_PACKETS] = { .type = NLA_U64 }, |
Jozsef Kadlecsik | 5663bc3 | 2011-02-01 15:41:26 +0100 | [diff] [blame] | 440 | }, |
| 441 | .me = THIS_MODULE, |
| 442 | }; |
| 443 | |
| 444 | static int __init |
| 445 | hash_ipportip_init(void) |
| 446 | { |
| 447 | return ip_set_type_register(&hash_ipportip_type); |
| 448 | } |
| 449 | |
| 450 | static void __exit |
| 451 | hash_ipportip_fini(void) |
| 452 | { |
| 453 | ip_set_type_unregister(&hash_ipportip_type); |
| 454 | } |
| 455 | |
| 456 | module_init(hash_ipportip_init); |
| 457 | module_exit(hash_ipportip_fini); |