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