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 | 35b8dcf | 2013-04-30 23:02:43 +0200 | [diff] [blame] | 27 | #define IPSET_TYPE_REV_MIN 0 |
| 28 | /* 1 SCTP and UDPLITE support added */ |
Oliver Smith | fda75c6 | 2013-09-22 20:56:31 +0200 | [diff] [blame] | 29 | /* 2 Counters support added */ |
Josh Hunt | 07cf8f5 | 2014-02-28 22:14:57 -0500 | [diff] [blame] | 30 | /* 3 Comments support added */ |
Anton Danilov | af33141 | 2014-08-28 10:11:29 +0400 | [diff] [blame] | 31 | /* 4 Forceadd support added */ |
| 32 | #define IPSET_TYPE_REV_MAX 5 /* skbinfo support added */ |
Jozsef Kadlecsik | 10111a6 | 2012-09-21 21:59:32 +0200 | [diff] [blame] | 33 | |
Jozsef Kadlecsik | 5663bc3 | 2011-02-01 15:41:26 +0100 | [diff] [blame] | 34 | MODULE_LICENSE("GPL"); |
| 35 | MODULE_AUTHOR("Jozsef Kadlecsik <kadlec@blackhole.kfki.hu>"); |
Jozsef Kadlecsik | 35b8dcf | 2013-04-30 23:02:43 +0200 | [diff] [blame] | 36 | IP_SET_MODULE_DESC("hash:ip,port,ip", IPSET_TYPE_REV_MIN, IPSET_TYPE_REV_MAX); |
Jozsef Kadlecsik | 5663bc3 | 2011-02-01 15:41:26 +0100 | [diff] [blame] | 37 | MODULE_ALIAS("ip_set_hash:ip,port,ip"); |
| 38 | |
| 39 | /* Type specific function prefix */ |
Jozsef Kadlecsik | 5d50e1d8 | 2013-04-08 22:50:55 +0200 | [diff] [blame] | 40 | #define HTYPE hash_ipportip |
Jozsef Kadlecsik | 5663bc3 | 2011-02-01 15:41:26 +0100 | [diff] [blame] | 41 | |
Jozsef Kadlecsik | 03c8b23 | 2013-09-07 00:43:52 +0200 | [diff] [blame] | 42 | /* IPv4 variant */ |
Jozsef Kadlecsik | 5663bc3 | 2011-02-01 15:41:26 +0100 | [diff] [blame] | 43 | |
Jozsef Kadlecsik | 5d50e1d8 | 2013-04-08 22:50:55 +0200 | [diff] [blame] | 44 | /* Member elements */ |
Jozsef Kadlecsik | 5663bc3 | 2011-02-01 15:41:26 +0100 | [diff] [blame] | 45 | struct hash_ipportip4_elem { |
| 46 | __be32 ip; |
| 47 | __be32 ip2; |
| 48 | __be16 port; |
| 49 | u8 proto; |
| 50 | u8 padding; |
| 51 | }; |
| 52 | |
Jozsef Kadlecsik | 5663bc3 | 2011-02-01 15:41:26 +0100 | [diff] [blame] | 53 | static inline bool |
| 54 | hash_ipportip4_data_equal(const struct hash_ipportip4_elem *ip1, |
Jozsef Kadlecsik | 89dc79b | 2011-07-21 12:06:18 +0200 | [diff] [blame] | 55 | const struct hash_ipportip4_elem *ip2, |
| 56 | u32 *multi) |
Jozsef Kadlecsik | 5663bc3 | 2011-02-01 15:41:26 +0100 | [diff] [blame] | 57 | { |
| 58 | return ip1->ip == ip2->ip && |
| 59 | ip1->ip2 == ip2->ip2 && |
| 60 | ip1->port == ip2->port && |
| 61 | ip1->proto == ip2->proto; |
| 62 | } |
| 63 | |
Jozsef Kadlecsik | 5663bc3 | 2011-02-01 15:41:26 +0100 | [diff] [blame] | 64 | static bool |
| 65 | hash_ipportip4_data_list(struct sk_buff *skb, |
| 66 | const struct hash_ipportip4_elem *data) |
| 67 | { |
David S. Miller | 7cf7899 | 2012-04-01 19:54:46 -0400 | [diff] [blame] | 68 | if (nla_put_ipaddr4(skb, IPSET_ATTR_IP, data->ip) || |
| 69 | nla_put_ipaddr4(skb, IPSET_ATTR_IP2, data->ip2) || |
| 70 | nla_put_net16(skb, IPSET_ATTR_PORT, data->port) || |
| 71 | nla_put_u8(skb, IPSET_ATTR_PROTO, data->proto)) |
| 72 | goto nla_put_failure; |
Sergey Popovich | 728a7e6 | 2015-05-02 19:28:15 +0200 | [diff] [blame] | 73 | return false; |
Jozsef Kadlecsik | 5663bc3 | 2011-02-01 15:41:26 +0100 | [diff] [blame] | 74 | |
| 75 | nla_put_failure: |
Sergey Popovich | 728a7e6 | 2015-05-02 19:28:15 +0200 | [diff] [blame] | 76 | return true; |
Jozsef Kadlecsik | 5663bc3 | 2011-02-01 15:41:26 +0100 | [diff] [blame] | 77 | } |
| 78 | |
Jozsef Kadlecsik | 3d14b17 | 2011-06-16 18:49:17 +0200 | [diff] [blame] | 79 | static inline void |
Jozsef Kadlecsik | 5d50e1d8 | 2013-04-08 22:50:55 +0200 | [diff] [blame] | 80 | hash_ipportip4_data_next(struct hash_ipportip4_elem *next, |
Jozsef Kadlecsik | 3d14b17 | 2011-06-16 18:49:17 +0200 | [diff] [blame] | 81 | const struct hash_ipportip4_elem *d) |
| 82 | { |
Jozsef Kadlecsik | 5d50e1d8 | 2013-04-08 22:50:55 +0200 | [diff] [blame] | 83 | next->ip = d->ip; |
| 84 | next->port = d->port; |
Jozsef Kadlecsik | 3d14b17 | 2011-06-16 18:49:17 +0200 | [diff] [blame] | 85 | } |
| 86 | |
Jozsef Kadlecsik | 5d50e1d8 | 2013-04-08 22:50:55 +0200 | [diff] [blame] | 87 | /* Common functions */ |
| 88 | #define MTYPE hash_ipportip4 |
Jozsef Kadlecsik | 5d50e1d8 | 2013-04-08 22:50:55 +0200 | [diff] [blame] | 89 | #define HOST_MASK 32 |
| 90 | #include "ip_set_hash_gen.h" |
| 91 | |
Jozsef Kadlecsik | 5663bc3 | 2011-02-01 15:41:26 +0100 | [diff] [blame] | 92 | static int |
| 93 | hash_ipportip4_kadt(struct ip_set *set, const struct sk_buff *skb, |
Jozsef Kadlecsik | b66554c | 2011-06-16 18:56:47 +0200 | [diff] [blame] | 94 | const struct xt_action_param *par, |
Jozsef Kadlecsik | 5d50e1d8 | 2013-04-08 22:50:55 +0200 | [diff] [blame] | 95 | enum ipset_adt adt, struct ip_set_adt_opt *opt) |
Jozsef Kadlecsik | 5663bc3 | 2011-02-01 15:41:26 +0100 | [diff] [blame] | 96 | { |
Jozsef Kadlecsik | 5663bc3 | 2011-02-01 15:41:26 +0100 | [diff] [blame] | 97 | ipset_adtfn adtfn = set->variant->adt[adt]; |
Mark Rustad | 94729f8 | 2014-08-05 04:56:21 -0700 | [diff] [blame] | 98 | struct hash_ipportip4_elem e = { .ip = 0 }; |
Jozsef Kadlecsik | ca134ce | 2013-09-07 00:10:07 +0200 | [diff] [blame] | 99 | struct ip_set_ext ext = IP_SET_INIT_KEXT(skb, opt, set); |
Jozsef Kadlecsik | 5663bc3 | 2011-02-01 15:41:26 +0100 | [diff] [blame] | 100 | |
Jozsef Kadlecsik | ac8cc92 | 2011-06-16 18:42:40 +0200 | [diff] [blame] | 101 | 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] | 102 | &e.port, &e.proto)) |
Jozsef Kadlecsik | 5663bc3 | 2011-02-01 15:41:26 +0100 | [diff] [blame] | 103 | return -EINVAL; |
| 104 | |
Jozsef Kadlecsik | 5d50e1d8 | 2013-04-08 22:50:55 +0200 | [diff] [blame] | 105 | ip4addrptr(skb, opt->flags & IPSET_DIM_ONE_SRC, &e.ip); |
| 106 | ip4addrptr(skb, opt->flags & IPSET_DIM_THREE_SRC, &e.ip2); |
| 107 | return adtfn(set, &e, &ext, &opt->ext, opt->cmdflags); |
Jozsef Kadlecsik | 5663bc3 | 2011-02-01 15:41:26 +0100 | [diff] [blame] | 108 | } |
| 109 | |
| 110 | static int |
| 111 | hash_ipportip4_uadt(struct ip_set *set, struct nlattr *tb[], |
Jozsef Kadlecsik | 3d14b17 | 2011-06-16 18:49:17 +0200 | [diff] [blame] | 112 | enum ipset_adt adt, u32 *lineno, u32 flags, bool retried) |
Jozsef Kadlecsik | 5663bc3 | 2011-02-01 15:41:26 +0100 | [diff] [blame] | 113 | { |
Jozsef Kadlecsik | 5d50e1d8 | 2013-04-08 22:50:55 +0200 | [diff] [blame] | 114 | const struct hash_ipportip *h = set->data; |
Jozsef Kadlecsik | 5663bc3 | 2011-02-01 15:41:26 +0100 | [diff] [blame] | 115 | ipset_adtfn adtfn = set->variant->adt[adt]; |
Mark Rustad | 94729f8 | 2014-08-05 04:56:21 -0700 | [diff] [blame] | 116 | struct hash_ipportip4_elem e = { .ip = 0 }; |
Jozsef Kadlecsik | ca134ce | 2013-09-07 00:10:07 +0200 | [diff] [blame] | 117 | struct ip_set_ext ext = IP_SET_INIT_UEXT(set); |
Jozsef Kadlecsik | 20b2fab | 2013-05-01 18:47:32 +0200 | [diff] [blame] | 118 | u32 ip, ip_to = 0, p = 0, port, port_to; |
Jozsef Kadlecsik | 5e0c1eb | 2011-03-20 15:33:26 +0100 | [diff] [blame] | 119 | bool with_ports = false; |
Jozsef Kadlecsik | 5663bc3 | 2011-02-01 15:41:26 +0100 | [diff] [blame] | 120 | int ret; |
| 121 | |
Sergey Popovich | a212e08 | 2015-06-12 21:26:43 +0200 | [diff] [blame] | 122 | if (tb[IPSET_ATTR_LINENO]) |
| 123 | *lineno = nla_get_u32(tb[IPSET_ATTR_LINENO]); |
| 124 | |
Jozsef Kadlecsik | 5663bc3 | 2011-02-01 15:41:26 +0100 | [diff] [blame] | 125 | if (unlikely(!tb[IPSET_ATTR_IP] || !tb[IPSET_ATTR_IP2] || |
| 126 | !ip_set_attr_netorder(tb, IPSET_ATTR_PORT) || |
Sergey Popovich | 7dd37bc | 2015-06-12 21:14:09 +0200 | [diff] [blame] | 127 | !ip_set_optattr_netorder(tb, IPSET_ATTR_PORT_TO))) |
Jozsef Kadlecsik | 5663bc3 | 2011-02-01 15:41:26 +0100 | [diff] [blame] | 128 | return -IPSET_ERR_PROTOCOL; |
| 129 | |
Sergey Popovich | 8e55d2e | 2015-05-02 19:28:07 +0200 | [diff] [blame] | 130 | ret = ip_set_get_ipaddr4(tb[IPSET_ATTR_IP], &e.ip); |
| 131 | if (ret) |
| 132 | return ret; |
| 133 | |
| 134 | ret = ip_set_get_extensions(set, tb, &ext); |
Jozsef Kadlecsik | 5663bc3 | 2011-02-01 15:41:26 +0100 | [diff] [blame] | 135 | if (ret) |
| 136 | return ret; |
| 137 | |
Jozsef Kadlecsik | 5d50e1d8 | 2013-04-08 22:50:55 +0200 | [diff] [blame] | 138 | ret = ip_set_get_ipaddr4(tb[IPSET_ATTR_IP2], &e.ip2); |
Jozsef Kadlecsik | 5663bc3 | 2011-02-01 15:41:26 +0100 | [diff] [blame] | 139 | if (ret) |
| 140 | return ret; |
| 141 | |
Sergey Popovich | d25472e | 2015-05-02 19:28:10 +0200 | [diff] [blame] | 142 | e.port = nla_get_be16(tb[IPSET_ATTR_PORT]); |
Jozsef Kadlecsik | 5663bc3 | 2011-02-01 15:41:26 +0100 | [diff] [blame] | 143 | |
| 144 | if (tb[IPSET_ATTR_PROTO]) { |
Jozsef Kadlecsik | 5d50e1d8 | 2013-04-08 22:50:55 +0200 | [diff] [blame] | 145 | e.proto = nla_get_u8(tb[IPSET_ATTR_PROTO]); |
| 146 | with_ports = ip_set_proto_with_ports(e.proto); |
Jozsef Kadlecsik | 5663bc3 | 2011-02-01 15:41:26 +0100 | [diff] [blame] | 147 | |
Jozsef Kadlecsik | 5d50e1d8 | 2013-04-08 22:50:55 +0200 | [diff] [blame] | 148 | if (e.proto == 0) |
Jozsef Kadlecsik | 5663bc3 | 2011-02-01 15:41:26 +0100 | [diff] [blame] | 149 | return -IPSET_ERR_INVALID_PROTO; |
| 150 | } else |
| 151 | return -IPSET_ERR_MISSING_PROTO; |
| 152 | |
Jozsef Kadlecsik | 5d50e1d8 | 2013-04-08 22:50:55 +0200 | [diff] [blame] | 153 | if (!(with_ports || e.proto == IPPROTO_ICMP)) |
| 154 | e.port = 0; |
Jozsef Kadlecsik | 5663bc3 | 2011-02-01 15:41:26 +0100 | [diff] [blame] | 155 | |
| 156 | if (adt == IPSET_TEST || |
Jozsef Kadlecsik | 5663bc3 | 2011-02-01 15:41:26 +0100 | [diff] [blame] | 157 | !(tb[IPSET_ATTR_IP_TO] || tb[IPSET_ATTR_CIDR] || |
| 158 | tb[IPSET_ATTR_PORT_TO])) { |
Jozsef Kadlecsik | 5d50e1d8 | 2013-04-08 22:50:55 +0200 | [diff] [blame] | 159 | ret = adtfn(set, &e, &ext, &ext, flags); |
Jozsef Kadlecsik | 5663bc3 | 2011-02-01 15:41:26 +0100 | [diff] [blame] | 160 | return ip_set_eexist(ret, flags) ? 0 : ret; |
| 161 | } |
| 162 | |
Jozsef Kadlecsik | 5d50e1d8 | 2013-04-08 22:50:55 +0200 | [diff] [blame] | 163 | ip_to = ip = ntohl(e.ip); |
Jozsef Kadlecsik | 5663bc3 | 2011-02-01 15:41:26 +0100 | [diff] [blame] | 164 | if (tb[IPSET_ATTR_IP_TO]) { |
| 165 | ret = ip_set_get_hostipaddr4(tb[IPSET_ATTR_IP_TO], &ip_to); |
| 166 | if (ret) |
| 167 | return ret; |
| 168 | if (ip > ip_to) |
| 169 | swap(ip, ip_to); |
| 170 | } else if (tb[IPSET_ATTR_CIDR]) { |
| 171 | u8 cidr = nla_get_u8(tb[IPSET_ATTR_CIDR]); |
| 172 | |
Sergey Popovich | cabfd13 | 2015-05-02 19:28:11 +0200 | [diff] [blame] | 173 | if (!cidr || cidr > HOST_MASK) |
Jozsef Kadlecsik | 5663bc3 | 2011-02-01 15:41:26 +0100 | [diff] [blame] | 174 | return -IPSET_ERR_INVALID_CIDR; |
Jozsef Kadlecsik | e6146e8 | 2011-06-16 18:55:58 +0200 | [diff] [blame] | 175 | ip_set_mask_from_to(ip, ip_to, cidr); |
Jozsef Kadlecsik | 4fe198e | 2012-11-19 06:42:21 +0000 | [diff] [blame] | 176 | } |
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 | port_to = port = ntohs(e.port); |
Jozsef Kadlecsik | 5e0c1eb | 2011-03-20 15:33:26 +0100 | [diff] [blame] | 179 | if (with_ports && tb[IPSET_ATTR_PORT_TO]) { |
Jozsef Kadlecsik | 5663bc3 | 2011-02-01 15:41:26 +0100 | [diff] [blame] | 180 | port_to = ip_set_get_h16(tb[IPSET_ATTR_PORT_TO]); |
| 181 | if (port > port_to) |
| 182 | swap(port, port_to); |
Jozsef Kadlecsik | 5e0c1eb | 2011-03-20 15:33:26 +0100 | [diff] [blame] | 183 | } |
Jozsef Kadlecsik | 5663bc3 | 2011-02-01 15:41:26 +0100 | [diff] [blame] | 184 | |
Jozsef Kadlecsik | 3d14b17 | 2011-06-16 18:49:17 +0200 | [diff] [blame] | 185 | if (retried) |
Jozsef Kadlecsik | 6e27c9b | 2012-09-21 21:44:58 +0200 | [diff] [blame] | 186 | ip = ntohl(h->next.ip); |
Jozsef Kadlecsik | 3d14b17 | 2011-06-16 18:49:17 +0200 | [diff] [blame] | 187 | for (; !before(ip_to, ip); ip++) { |
Jozsef Kadlecsik | 6e27c9b | 2012-09-21 21:44:58 +0200 | [diff] [blame] | 188 | p = retried && ip == ntohl(h->next.ip) ? ntohs(h->next.port) |
| 189 | : port; |
Jozsef Kadlecsik | 3d14b17 | 2011-06-16 18:49:17 +0200 | [diff] [blame] | 190 | for (; p <= port_to; p++) { |
Jozsef Kadlecsik | 5d50e1d8 | 2013-04-08 22:50:55 +0200 | [diff] [blame] | 191 | e.ip = htonl(ip); |
| 192 | e.port = htons(p); |
| 193 | ret = adtfn(set, &e, &ext, &ext, flags); |
Jozsef Kadlecsik | 5663bc3 | 2011-02-01 15:41:26 +0100 | [diff] [blame] | 194 | |
| 195 | if (ret && !ip_set_eexist(ret, flags)) |
| 196 | return ret; |
| 197 | else |
| 198 | ret = 0; |
| 199 | } |
Jozsef Kadlecsik | 3d14b17 | 2011-06-16 18:49:17 +0200 | [diff] [blame] | 200 | } |
Jozsef Kadlecsik | 5663bc3 | 2011-02-01 15:41:26 +0100 | [diff] [blame] | 201 | return ret; |
| 202 | } |
| 203 | |
Jozsef Kadlecsik | 03c8b23 | 2013-09-07 00:43:52 +0200 | [diff] [blame] | 204 | /* IPv6 variant */ |
Jozsef Kadlecsik | 5663bc3 | 2011-02-01 15:41:26 +0100 | [diff] [blame] | 205 | |
| 206 | struct hash_ipportip6_elem { |
| 207 | union nf_inet_addr ip; |
| 208 | union nf_inet_addr ip2; |
| 209 | __be16 port; |
| 210 | u8 proto; |
| 211 | u8 padding; |
| 212 | }; |
| 213 | |
Jozsef Kadlecsik | 5d50e1d8 | 2013-04-08 22:50:55 +0200 | [diff] [blame] | 214 | /* Common functions */ |
| 215 | |
Jozsef Kadlecsik | 5663bc3 | 2011-02-01 15:41:26 +0100 | [diff] [blame] | 216 | static inline bool |
| 217 | hash_ipportip6_data_equal(const struct hash_ipportip6_elem *ip1, |
Jozsef Kadlecsik | 89dc79b | 2011-07-21 12:06:18 +0200 | [diff] [blame] | 218 | const struct hash_ipportip6_elem *ip2, |
| 219 | u32 *multi) |
Jozsef Kadlecsik | 5663bc3 | 2011-02-01 15:41:26 +0100 | [diff] [blame] | 220 | { |
YOSHIFUJI Hideaki / 吉藤英明 | 29e3b16 | 2013-01-29 12:49:03 +0000 | [diff] [blame] | 221 | return ipv6_addr_equal(&ip1->ip.in6, &ip2->ip.in6) && |
| 222 | ipv6_addr_equal(&ip1->ip2.in6, &ip2->ip2.in6) && |
Jozsef Kadlecsik | 5663bc3 | 2011-02-01 15:41:26 +0100 | [diff] [blame] | 223 | ip1->port == ip2->port && |
| 224 | ip1->proto == ip2->proto; |
| 225 | } |
| 226 | |
Jozsef Kadlecsik | 5663bc3 | 2011-02-01 15:41:26 +0100 | [diff] [blame] | 227 | static bool |
| 228 | hash_ipportip6_data_list(struct sk_buff *skb, |
| 229 | const struct hash_ipportip6_elem *data) |
| 230 | { |
David S. Miller | 7cf7899 | 2012-04-01 19:54:46 -0400 | [diff] [blame] | 231 | if (nla_put_ipaddr6(skb, IPSET_ATTR_IP, &data->ip.in6) || |
| 232 | nla_put_ipaddr6(skb, IPSET_ATTR_IP2, &data->ip2.in6) || |
| 233 | nla_put_net16(skb, IPSET_ATTR_PORT, data->port) || |
| 234 | nla_put_u8(skb, IPSET_ATTR_PROTO, data->proto)) |
| 235 | goto nla_put_failure; |
Sergey Popovich | 728a7e6 | 2015-05-02 19:28:15 +0200 | [diff] [blame] | 236 | return false; |
Jozsef Kadlecsik | 5663bc3 | 2011-02-01 15:41:26 +0100 | [diff] [blame] | 237 | |
| 238 | nla_put_failure: |
Sergey Popovich | 728a7e6 | 2015-05-02 19:28:15 +0200 | [diff] [blame] | 239 | return true; |
Jozsef Kadlecsik | 5663bc3 | 2011-02-01 15:41:26 +0100 | [diff] [blame] | 240 | } |
| 241 | |
Jozsef Kadlecsik | 5d50e1d8 | 2013-04-08 22:50:55 +0200 | [diff] [blame] | 242 | static inline void |
| 243 | hash_ipportip6_data_next(struct hash_ipportip4_elem *next, |
| 244 | const struct hash_ipportip6_elem *d) |
Jozsef Kadlecsik | 5663bc3 | 2011-02-01 15:41:26 +0100 | [diff] [blame] | 245 | { |
Jozsef Kadlecsik | 5d50e1d8 | 2013-04-08 22:50:55 +0200 | [diff] [blame] | 246 | next->port = d->port; |
Jozsef Kadlecsik | 5663bc3 | 2011-02-01 15:41:26 +0100 | [diff] [blame] | 247 | } |
| 248 | |
Jozsef Kadlecsik | 5d50e1d8 | 2013-04-08 22:50:55 +0200 | [diff] [blame] | 249 | #undef MTYPE |
Jozsef Kadlecsik | 5663bc3 | 2011-02-01 15:41:26 +0100 | [diff] [blame] | 250 | #undef HOST_MASK |
| 251 | |
Jozsef Kadlecsik | 5d50e1d8 | 2013-04-08 22:50:55 +0200 | [diff] [blame] | 252 | #define MTYPE hash_ipportip6 |
Jozsef Kadlecsik | 5663bc3 | 2011-02-01 15:41:26 +0100 | [diff] [blame] | 253 | #define HOST_MASK 128 |
Jozsef Kadlecsik | 5d50e1d8 | 2013-04-08 22:50:55 +0200 | [diff] [blame] | 254 | #define IP_SET_EMIT_CREATE |
| 255 | #include "ip_set_hash_gen.h" |
Jozsef Kadlecsik | 3d14b17 | 2011-06-16 18:49:17 +0200 | [diff] [blame] | 256 | |
Jozsef Kadlecsik | 5663bc3 | 2011-02-01 15:41:26 +0100 | [diff] [blame] | 257 | static int |
| 258 | hash_ipportip6_kadt(struct ip_set *set, const struct sk_buff *skb, |
Jozsef Kadlecsik | b66554c | 2011-06-16 18:56:47 +0200 | [diff] [blame] | 259 | const struct xt_action_param *par, |
Jozsef Kadlecsik | 5d50e1d8 | 2013-04-08 22:50:55 +0200 | [diff] [blame] | 260 | enum ipset_adt adt, struct ip_set_adt_opt *opt) |
Jozsef Kadlecsik | 5663bc3 | 2011-02-01 15:41:26 +0100 | [diff] [blame] | 261 | { |
Jozsef Kadlecsik | 5663bc3 | 2011-02-01 15:41:26 +0100 | [diff] [blame] | 262 | ipset_adtfn adtfn = set->variant->adt[adt]; |
Mark Rustad | 94729f8 | 2014-08-05 04:56:21 -0700 | [diff] [blame] | 263 | struct hash_ipportip6_elem e = { .ip = { .all = { 0 } } }; |
Jozsef Kadlecsik | ca134ce | 2013-09-07 00:10:07 +0200 | [diff] [blame] | 264 | struct ip_set_ext ext = IP_SET_INIT_KEXT(skb, opt, set); |
Jozsef Kadlecsik | 5663bc3 | 2011-02-01 15:41:26 +0100 | [diff] [blame] | 265 | |
Jozsef Kadlecsik | ac8cc92 | 2011-06-16 18:42:40 +0200 | [diff] [blame] | 266 | 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] | 267 | &e.port, &e.proto)) |
Jozsef Kadlecsik | 5663bc3 | 2011-02-01 15:41:26 +0100 | [diff] [blame] | 268 | return -EINVAL; |
| 269 | |
Jozsef Kadlecsik | 5d50e1d8 | 2013-04-08 22:50:55 +0200 | [diff] [blame] | 270 | ip6addrptr(skb, opt->flags & IPSET_DIM_ONE_SRC, &e.ip.in6); |
| 271 | ip6addrptr(skb, opt->flags & IPSET_DIM_THREE_SRC, &e.ip2.in6); |
| 272 | return adtfn(set, &e, &ext, &opt->ext, opt->cmdflags); |
Jozsef Kadlecsik | 5663bc3 | 2011-02-01 15:41:26 +0100 | [diff] [blame] | 273 | } |
| 274 | |
| 275 | static int |
| 276 | hash_ipportip6_uadt(struct ip_set *set, struct nlattr *tb[], |
Jozsef Kadlecsik | 3d14b17 | 2011-06-16 18:49:17 +0200 | [diff] [blame] | 277 | enum ipset_adt adt, u32 *lineno, u32 flags, bool retried) |
Jozsef Kadlecsik | 5663bc3 | 2011-02-01 15:41:26 +0100 | [diff] [blame] | 278 | { |
Jozsef Kadlecsik | 5d50e1d8 | 2013-04-08 22:50:55 +0200 | [diff] [blame] | 279 | const struct hash_ipportip *h = set->data; |
Jozsef Kadlecsik | 5663bc3 | 2011-02-01 15:41:26 +0100 | [diff] [blame] | 280 | ipset_adtfn adtfn = set->variant->adt[adt]; |
Mark Rustad | 94729f8 | 2014-08-05 04:56:21 -0700 | [diff] [blame] | 281 | struct hash_ipportip6_elem e = { .ip = { .all = { 0 } } }; |
Jozsef Kadlecsik | ca134ce | 2013-09-07 00:10:07 +0200 | [diff] [blame] | 282 | struct ip_set_ext ext = IP_SET_INIT_UEXT(set); |
Jozsef Kadlecsik | 5663bc3 | 2011-02-01 15:41:26 +0100 | [diff] [blame] | 283 | u32 port, port_to; |
Jozsef Kadlecsik | 5e0c1eb | 2011-03-20 15:33:26 +0100 | [diff] [blame] | 284 | bool with_ports = false; |
Jozsef Kadlecsik | 5663bc3 | 2011-02-01 15:41:26 +0100 | [diff] [blame] | 285 | int ret; |
| 286 | |
Sergey Popovich | a212e08 | 2015-06-12 21:26:43 +0200 | [diff] [blame] | 287 | if (tb[IPSET_ATTR_LINENO]) |
| 288 | *lineno = nla_get_u32(tb[IPSET_ATTR_LINENO]); |
| 289 | |
Jozsef Kadlecsik | 5663bc3 | 2011-02-01 15:41:26 +0100 | [diff] [blame] | 290 | if (unlikely(!tb[IPSET_ATTR_IP] || !tb[IPSET_ATTR_IP2] || |
| 291 | !ip_set_attr_netorder(tb, IPSET_ATTR_PORT) || |
Sergey Popovich | 2c227f2 | 2015-06-12 21:23:31 +0200 | [diff] [blame] | 292 | !ip_set_optattr_netorder(tb, IPSET_ATTR_PORT_TO))) |
Jozsef Kadlecsik | 5663bc3 | 2011-02-01 15:41:26 +0100 | [diff] [blame] | 293 | return -IPSET_ERR_PROTOCOL; |
Sergey Popovich | 2c227f2 | 2015-06-12 21:23:31 +0200 | [diff] [blame] | 294 | if (unlikely(tb[IPSET_ATTR_IP_TO])) |
| 295 | return -IPSET_ERR_HASH_RANGE_UNSUPPORTED; |
| 296 | if (unlikely(tb[IPSET_ATTR_CIDR])) { |
| 297 | u8 cidr = nla_get_u8(tb[IPSET_ATTR_CIDR]); |
| 298 | |
| 299 | if (cidr != HOST_MASK) |
| 300 | return -IPSET_ERR_INVALID_CIDR; |
| 301 | } |
Jozsef Kadlecsik | 5663bc3 | 2011-02-01 15:41:26 +0100 | [diff] [blame] | 302 | |
Sergey Popovich | 8e55d2e | 2015-05-02 19:28:07 +0200 | [diff] [blame] | 303 | ret = ip_set_get_ipaddr6(tb[IPSET_ATTR_IP], &e.ip); |
| 304 | if (ret) |
| 305 | return ret; |
| 306 | |
| 307 | ret = ip_set_get_extensions(set, tb, &ext); |
Jozsef Kadlecsik | 5663bc3 | 2011-02-01 15:41:26 +0100 | [diff] [blame] | 308 | if (ret) |
| 309 | return ret; |
| 310 | |
Jozsef Kadlecsik | 5d50e1d8 | 2013-04-08 22:50:55 +0200 | [diff] [blame] | 311 | ret = ip_set_get_ipaddr6(tb[IPSET_ATTR_IP2], &e.ip2); |
Jozsef Kadlecsik | 5663bc3 | 2011-02-01 15:41:26 +0100 | [diff] [blame] | 312 | if (ret) |
| 313 | return ret; |
| 314 | |
Sergey Popovich | d25472e | 2015-05-02 19:28:10 +0200 | [diff] [blame] | 315 | e.port = nla_get_be16(tb[IPSET_ATTR_PORT]); |
Jozsef Kadlecsik | 5663bc3 | 2011-02-01 15:41:26 +0100 | [diff] [blame] | 316 | |
| 317 | if (tb[IPSET_ATTR_PROTO]) { |
Jozsef Kadlecsik | 5d50e1d8 | 2013-04-08 22:50:55 +0200 | [diff] [blame] | 318 | e.proto = nla_get_u8(tb[IPSET_ATTR_PROTO]); |
| 319 | with_ports = ip_set_proto_with_ports(e.proto); |
Jozsef Kadlecsik | 5663bc3 | 2011-02-01 15:41:26 +0100 | [diff] [blame] | 320 | |
Jozsef Kadlecsik | 5d50e1d8 | 2013-04-08 22:50:55 +0200 | [diff] [blame] | 321 | if (e.proto == 0) |
Jozsef Kadlecsik | 5663bc3 | 2011-02-01 15:41:26 +0100 | [diff] [blame] | 322 | return -IPSET_ERR_INVALID_PROTO; |
| 323 | } else |
| 324 | return -IPSET_ERR_MISSING_PROTO; |
| 325 | |
Jozsef Kadlecsik | 5d50e1d8 | 2013-04-08 22:50:55 +0200 | [diff] [blame] | 326 | if (!(with_ports || e.proto == IPPROTO_ICMPV6)) |
| 327 | e.port = 0; |
Jozsef Kadlecsik | 5663bc3 | 2011-02-01 15:41:26 +0100 | [diff] [blame] | 328 | |
Jozsef Kadlecsik | 5e0c1eb | 2011-03-20 15:33:26 +0100 | [diff] [blame] | 329 | if (adt == IPSET_TEST || !with_ports || !tb[IPSET_ATTR_PORT_TO]) { |
Jozsef Kadlecsik | 5d50e1d8 | 2013-04-08 22:50:55 +0200 | [diff] [blame] | 330 | ret = adtfn(set, &e, &ext, &ext, flags); |
Jozsef Kadlecsik | 5663bc3 | 2011-02-01 15:41:26 +0100 | [diff] [blame] | 331 | return ip_set_eexist(ret, flags) ? 0 : ret; |
| 332 | } |
| 333 | |
Jozsef Kadlecsik | 5d50e1d8 | 2013-04-08 22:50:55 +0200 | [diff] [blame] | 334 | port = ntohs(e.port); |
Jozsef Kadlecsik | 5663bc3 | 2011-02-01 15:41:26 +0100 | [diff] [blame] | 335 | port_to = ip_set_get_h16(tb[IPSET_ATTR_PORT_TO]); |
| 336 | if (port > port_to) |
| 337 | swap(port, port_to); |
| 338 | |
Jozsef Kadlecsik | 3d14b17 | 2011-06-16 18:49:17 +0200 | [diff] [blame] | 339 | if (retried) |
Jozsef Kadlecsik | 6e27c9b | 2012-09-21 21:44:58 +0200 | [diff] [blame] | 340 | port = ntohs(h->next.port); |
Jozsef Kadlecsik | 5663bc3 | 2011-02-01 15:41:26 +0100 | [diff] [blame] | 341 | for (; port <= port_to; port++) { |
Jozsef Kadlecsik | 5d50e1d8 | 2013-04-08 22:50:55 +0200 | [diff] [blame] | 342 | e.port = htons(port); |
| 343 | ret = adtfn(set, &e, &ext, &ext, flags); |
Jozsef Kadlecsik | 5663bc3 | 2011-02-01 15:41:26 +0100 | [diff] [blame] | 344 | |
| 345 | if (ret && !ip_set_eexist(ret, flags)) |
| 346 | return ret; |
| 347 | else |
| 348 | ret = 0; |
| 349 | } |
| 350 | return ret; |
| 351 | } |
| 352 | |
Jozsef Kadlecsik | 5663bc3 | 2011-02-01 15:41:26 +0100 | [diff] [blame] | 353 | static struct ip_set_type hash_ipportip_type __read_mostly = { |
| 354 | .name = "hash:ip,port,ip", |
| 355 | .protocol = IPSET_PROTOCOL, |
| 356 | .features = IPSET_TYPE_IP | IPSET_TYPE_PORT | IPSET_TYPE_IP2, |
| 357 | .dimension = IPSET_DIM_THREE, |
Jan Engelhardt | c15f1c8 | 2012-02-14 00:24:10 +0100 | [diff] [blame] | 358 | .family = NFPROTO_UNSPEC, |
Jozsef Kadlecsik | 35b8dcf | 2013-04-30 23:02:43 +0200 | [diff] [blame] | 359 | .revision_min = IPSET_TYPE_REV_MIN, |
| 360 | .revision_max = IPSET_TYPE_REV_MAX, |
Jozsef Kadlecsik | 5663bc3 | 2011-02-01 15:41:26 +0100 | [diff] [blame] | 361 | .create = hash_ipportip_create, |
| 362 | .create_policy = { |
| 363 | [IPSET_ATTR_HASHSIZE] = { .type = NLA_U32 }, |
| 364 | [IPSET_ATTR_MAXELEM] = { .type = NLA_U32 }, |
| 365 | [IPSET_ATTR_PROBES] = { .type = NLA_U8 }, |
| 366 | [IPSET_ATTR_RESIZE] = { .type = NLA_U8 }, |
| 367 | [IPSET_ATTR_TIMEOUT] = { .type = NLA_U32 }, |
Jozsef Kadlecsik | 00d71b2 | 2013-04-08 23:11:02 +0200 | [diff] [blame] | 368 | [IPSET_ATTR_CADT_FLAGS] = { .type = NLA_U32 }, |
Jozsef Kadlecsik | 5663bc3 | 2011-02-01 15:41:26 +0100 | [diff] [blame] | 369 | }, |
| 370 | .adt_policy = { |
| 371 | [IPSET_ATTR_IP] = { .type = NLA_NESTED }, |
| 372 | [IPSET_ATTR_IP_TO] = { .type = NLA_NESTED }, |
| 373 | [IPSET_ATTR_IP2] = { .type = NLA_NESTED }, |
| 374 | [IPSET_ATTR_PORT] = { .type = NLA_U16 }, |
| 375 | [IPSET_ATTR_PORT_TO] = { .type = NLA_U16 }, |
| 376 | [IPSET_ATTR_CIDR] = { .type = NLA_U8 }, |
| 377 | [IPSET_ATTR_PROTO] = { .type = NLA_U8 }, |
| 378 | [IPSET_ATTR_TIMEOUT] = { .type = NLA_U32 }, |
| 379 | [IPSET_ATTR_LINENO] = { .type = NLA_U32 }, |
Jozsef Kadlecsik | 00d71b2 | 2013-04-08 23:11:02 +0200 | [diff] [blame] | 380 | [IPSET_ATTR_BYTES] = { .type = NLA_U64 }, |
| 381 | [IPSET_ATTR_PACKETS] = { .type = NLA_U64 }, |
Sergey Popovich | 0372618 | 2015-05-02 19:28:16 +0200 | [diff] [blame] | 382 | [IPSET_ATTR_COMMENT] = { .type = NLA_NUL_STRING, |
| 383 | .len = IPSET_MAX_COMMENT_SIZE }, |
Anton Danilov | af33141 | 2014-08-28 10:11:29 +0400 | [diff] [blame] | 384 | [IPSET_ATTR_SKBMARK] = { .type = NLA_U64 }, |
| 385 | [IPSET_ATTR_SKBPRIO] = { .type = NLA_U32 }, |
| 386 | [IPSET_ATTR_SKBQUEUE] = { .type = NLA_U16 }, |
Jozsef Kadlecsik | 5663bc3 | 2011-02-01 15:41:26 +0100 | [diff] [blame] | 387 | }, |
| 388 | .me = THIS_MODULE, |
| 389 | }; |
| 390 | |
| 391 | static int __init |
| 392 | hash_ipportip_init(void) |
| 393 | { |
| 394 | return ip_set_type_register(&hash_ipportip_type); |
| 395 | } |
| 396 | |
| 397 | static void __exit |
| 398 | hash_ipportip_fini(void) |
| 399 | { |
Jozsef Kadlecsik | 18f84d4 | 2015-06-13 17:29:56 +0200 | [diff] [blame^] | 400 | rcu_barrier(); |
Jozsef Kadlecsik | 5663bc3 | 2011-02-01 15:41:26 +0100 | [diff] [blame] | 401 | ip_set_type_unregister(&hash_ipportip_type); |
| 402 | } |
| 403 | |
| 404 | module_init(hash_ipportip_init); |
| 405 | module_exit(hash_ipportip_fini); |