Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1 | /* |
| 2 | * Linux INET6 implementation |
| 3 | * |
| 4 | * Authors: |
| 5 | * Pedro Roque <roque@di.fc.ul.pt> |
| 6 | * |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 7 | * This program is free software; you can redistribute it and/or |
| 8 | * modify it under the terms of the GNU General Public License |
| 9 | * as published by the Free Software Foundation; either version |
| 10 | * 2 of the License, or (at your option) any later version. |
| 11 | */ |
| 12 | |
| 13 | #ifndef _NET_IPV6_H |
| 14 | #define _NET_IPV6_H |
| 15 | |
| 16 | #include <linux/ipv6.h> |
| 17 | #include <linux/hardirq.h> |
Herbert Xu | 20283d8 | 2007-07-30 17:05:49 -0700 | [diff] [blame] | 18 | #include <net/if_inet6.h> |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 19 | #include <net/ndisc.h> |
| 20 | #include <net/flow.h> |
| 21 | #include <net/snmp.h> |
| 22 | |
| 23 | #define SIN6_LEN_RFC2133 24 |
| 24 | |
| 25 | #define IPV6_MAXPLEN 65535 |
| 26 | |
| 27 | /* |
| 28 | * NextHeader field of IPv6 header |
| 29 | */ |
| 30 | |
| 31 | #define NEXTHDR_HOP 0 /* Hop-by-hop option header. */ |
| 32 | #define NEXTHDR_TCP 6 /* TCP segment. */ |
| 33 | #define NEXTHDR_UDP 17 /* UDP message. */ |
| 34 | #define NEXTHDR_IPV6 41 /* IPv6 in IPv6 */ |
| 35 | #define NEXTHDR_ROUTING 43 /* Routing header. */ |
| 36 | #define NEXTHDR_FRAGMENT 44 /* Fragmentation/reassembly header. */ |
| 37 | #define NEXTHDR_ESP 50 /* Encapsulating security payload. */ |
| 38 | #define NEXTHDR_AUTH 51 /* Authentication header. */ |
| 39 | #define NEXTHDR_ICMP 58 /* ICMP for IPv6. */ |
| 40 | #define NEXTHDR_NONE 59 /* No next header */ |
| 41 | #define NEXTHDR_DEST 60 /* Destination options header. */ |
Masahide NAKAMURA | 2b74165 | 2006-08-23 20:34:26 -0700 | [diff] [blame] | 42 | #define NEXTHDR_MOBILITY 135 /* Mobility header. */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 43 | |
| 44 | #define NEXTHDR_MAX 255 |
| 45 | |
| 46 | |
| 47 | |
| 48 | #define IPV6_DEFAULT_HOPLIMIT 64 |
| 49 | #define IPV6_DEFAULT_MCASTHOPS 1 |
| 50 | |
| 51 | /* |
| 52 | * Addr type |
| 53 | * |
| 54 | * type - unicast | multicast |
| 55 | * scope - local | site | global |
| 56 | * v4 - compat |
| 57 | * v4mapped |
| 58 | * any |
| 59 | * loopback |
| 60 | */ |
| 61 | |
| 62 | #define IPV6_ADDR_ANY 0x0000U |
| 63 | |
| 64 | #define IPV6_ADDR_UNICAST 0x0001U |
| 65 | #define IPV6_ADDR_MULTICAST 0x0002U |
| 66 | |
| 67 | #define IPV6_ADDR_LOOPBACK 0x0010U |
| 68 | #define IPV6_ADDR_LINKLOCAL 0x0020U |
| 69 | #define IPV6_ADDR_SITELOCAL 0x0040U |
| 70 | |
| 71 | #define IPV6_ADDR_COMPATv4 0x0080U |
| 72 | |
| 73 | #define IPV6_ADDR_SCOPE_MASK 0x00f0U |
| 74 | |
| 75 | #define IPV6_ADDR_MAPPED 0x1000U |
| 76 | #define IPV6_ADDR_RESERVED 0x2000U /* reserved address space */ |
| 77 | |
| 78 | /* |
| 79 | * Addr scopes |
| 80 | */ |
| 81 | #ifdef __KERNEL__ |
| 82 | #define IPV6_ADDR_MC_SCOPE(a) \ |
| 83 | ((a)->s6_addr[1] & 0x0f) /* nonstandard */ |
| 84 | #define __IPV6_ADDR_SCOPE_INVALID -1 |
| 85 | #endif |
| 86 | #define IPV6_ADDR_SCOPE_NODELOCAL 0x01 |
| 87 | #define IPV6_ADDR_SCOPE_LINKLOCAL 0x02 |
| 88 | #define IPV6_ADDR_SCOPE_SITELOCAL 0x05 |
| 89 | #define IPV6_ADDR_SCOPE_ORGLOCAL 0x08 |
| 90 | #define IPV6_ADDR_SCOPE_GLOBAL 0x0e |
| 91 | |
| 92 | /* |
| 93 | * fragmentation header |
| 94 | */ |
| 95 | |
| 96 | struct frag_hdr { |
Al Viro | 44473a6 | 2006-11-08 00:21:46 -0800 | [diff] [blame] | 97 | __u8 nexthdr; |
| 98 | __u8 reserved; |
| 99 | __be16 frag_off; |
| 100 | __be32 identification; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 101 | }; |
| 102 | |
| 103 | #define IP6_MF 0x0001 |
| 104 | |
| 105 | #ifdef __KERNEL__ |
| 106 | |
| 107 | #include <net/sock.h> |
| 108 | |
| 109 | /* sysctls */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 110 | extern int sysctl_mld_max_msf; |
Pavel Emelyanov | 3d7cc2b | 2008-01-09 00:33:11 -0800 | [diff] [blame] | 111 | extern struct ctl_path net_ipv6_ctl_path[]; |
| 112 | |
Denis V. Lunev | 087fe24 | 2008-10-08 10:35:11 -0700 | [diff] [blame] | 113 | #define _DEVINC(net, statname, modifier, idev, field) \ |
David L Stevens | 14878f7 | 2007-09-16 16:52:35 -0700 | [diff] [blame] | 114 | ({ \ |
| 115 | struct inet6_dev *_idev = (idev); \ |
| 116 | if (likely(_idev != NULL)) \ |
| 117 | SNMP_INC_STATS##modifier((_idev)->stats.statname, (field)); \ |
Denis V. Lunev | 9261e53 | 2008-10-08 10:36:03 -0700 | [diff] [blame] | 118 | SNMP_INC_STATS##modifier((net)->mib.statname##_statistics, (field));\ |
David L Stevens | 14878f7 | 2007-09-16 16:52:35 -0700 | [diff] [blame] | 119 | }) |
| 120 | |
Denis V. Lunev | 087fe24 | 2008-10-08 10:35:11 -0700 | [diff] [blame] | 121 | #define _DEVADD(net, statname, modifier, idev, field, val) \ |
Pavel Emelyanov | 8e7999c | 2007-10-15 02:40:06 -0700 | [diff] [blame] | 122 | ({ \ |
| 123 | struct inet6_dev *_idev = (idev); \ |
| 124 | if (likely(_idev != NULL)) \ |
| 125 | SNMP_ADD_STATS##modifier((_idev)->stats.statname, (field), (val)); \ |
Denis V. Lunev | 9261e53 | 2008-10-08 10:36:03 -0700 | [diff] [blame] | 126 | SNMP_ADD_STATS##modifier((net)->mib.statname##_statistics, (field), (val));\ |
Pavel Emelyanov | 8e7999c | 2007-10-15 02:40:06 -0700 | [diff] [blame] | 127 | }) |
| 128 | |
Neil Horman | edf391f | 2009-04-27 02:45:02 -0700 | [diff] [blame] | 129 | #define _DEVUPD(net, statname, modifier, idev, field, val) \ |
| 130 | ({ \ |
| 131 | struct inet6_dev *_idev = (idev); \ |
| 132 | if (likely(_idev != NULL)) \ |
| 133 | SNMP_UPD_PO_STATS##modifier((_idev)->stats.statname, field, (val)); \ |
| 134 | SNMP_UPD_PO_STATS##modifier((net)->mib.statname##_statistics, field, (val));\ |
| 135 | }) |
| 136 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 137 | /* MIBs */ |
David L Stevens | 14878f7 | 2007-09-16 16:52:35 -0700 | [diff] [blame] | 138 | |
Denis V. Lunev | 087fe24 | 2008-10-08 10:35:11 -0700 | [diff] [blame] | 139 | #define IP6_INC_STATS(net, idev,field) \ |
| 140 | _DEVINC(net, ipv6, , idev, field) |
| 141 | #define IP6_INC_STATS_BH(net, idev,field) \ |
| 142 | _DEVINC(net, ipv6, _BH, idev, field) |
Neil Horman | edf391f | 2009-04-27 02:45:02 -0700 | [diff] [blame] | 143 | #define IP6_ADD_STATS(net, idev,field,val) \ |
| 144 | _DEVADD(net, ipv6, , idev, field, val) |
Denis V. Lunev | 087fe24 | 2008-10-08 10:35:11 -0700 | [diff] [blame] | 145 | #define IP6_ADD_STATS_BH(net, idev,field,val) \ |
| 146 | _DEVADD(net, ipv6, _BH, idev, field, val) |
Neil Horman | edf391f | 2009-04-27 02:45:02 -0700 | [diff] [blame] | 147 | #define IP6_UPD_PO_STATS(net, idev,field,val) \ |
| 148 | _DEVUPD(net, ipv6, , idev, field, val) |
| 149 | #define IP6_UPD_PO_STATS_BH(net, idev,field,val) \ |
| 150 | _DEVUPD(net, ipv6, _BH, idev, field, val) |
Denis V. Lunev | 087fe24 | 2008-10-08 10:35:11 -0700 | [diff] [blame] | 151 | #define ICMP6_INC_STATS(net, idev, field) \ |
| 152 | _DEVINC(net, icmpv6, , idev, field) |
| 153 | #define ICMP6_INC_STATS_BH(net, idev, field) \ |
| 154 | _DEVINC(net, icmpv6, _BH, idev, field) |
David L Stevens | 14878f7 | 2007-09-16 16:52:35 -0700 | [diff] [blame] | 155 | |
Denis V. Lunev | 087fe24 | 2008-10-08 10:35:11 -0700 | [diff] [blame] | 156 | #define ICMP6MSGOUT_INC_STATS(net, idev, field) \ |
| 157 | _DEVINC(net, icmpv6msg, , idev, field +256) |
| 158 | #define ICMP6MSGOUT_INC_STATS_BH(net, idev, field) \ |
| 159 | _DEVINC(net, icmpv6msg, _BH, idev, field +256) |
| 160 | #define ICMP6MSGIN_INC_STATS_BH(net, idev, field) \ |
| 161 | _DEVINC(net, icmpv6msg, _BH, idev, field) |
David L Stevens | 14878f7 | 2007-09-16 16:52:35 -0700 | [diff] [blame] | 162 | |
Eric Dumazet | fd2c3ef | 2009-11-03 03:26:03 +0000 | [diff] [blame] | 163 | struct ip6_ra_chain { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 164 | struct ip6_ra_chain *next; |
| 165 | struct sock *sk; |
| 166 | int sel; |
| 167 | void (*destructor)(struct sock *); |
| 168 | }; |
| 169 | |
| 170 | extern struct ip6_ra_chain *ip6_ra_chain; |
| 171 | extern rwlock_t ip6_ra_lock; |
| 172 | |
| 173 | /* |
| 174 | This structure is prepared by protocol, when parsing |
| 175 | ancillary data and passed to IPv6. |
| 176 | */ |
| 177 | |
Eric Dumazet | fd2c3ef | 2009-11-03 03:26:03 +0000 | [diff] [blame] | 178 | struct ipv6_txoptions { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 179 | /* Length of this structure */ |
| 180 | int tot_len; |
| 181 | |
| 182 | /* length of extension headers */ |
| 183 | |
| 184 | __u16 opt_flen; /* after fragment hdr */ |
| 185 | __u16 opt_nflen; /* before fragment hdr */ |
| 186 | |
| 187 | struct ipv6_opt_hdr *hopopt; |
| 188 | struct ipv6_opt_hdr *dst0opt; |
| 189 | struct ipv6_rt_hdr *srcrt; /* Routing Header */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 190 | struct ipv6_opt_hdr *dst1opt; |
| 191 | |
| 192 | /* Option buffer, as read by IPV6_PKTOPTIONS, starts here. */ |
| 193 | }; |
| 194 | |
Eric Dumazet | fd2c3ef | 2009-11-03 03:26:03 +0000 | [diff] [blame] | 195 | struct ip6_flowlabel { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 196 | struct ip6_flowlabel *next; |
Al Viro | 90bcaf7 | 2006-11-08 00:25:17 -0800 | [diff] [blame] | 197 | __be32 label; |
Eric Dumazet | db3459d | 2007-05-03 17:39:04 -0700 | [diff] [blame] | 198 | atomic_t users; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 199 | struct in6_addr dst; |
| 200 | struct ipv6_txoptions *opt; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 201 | unsigned long linger; |
| 202 | u8 share; |
| 203 | u32 owner; |
| 204 | unsigned long lastuse; |
| 205 | unsigned long expires; |
Benjamin Thery | 60e8fbc | 2008-03-26 16:53:08 -0700 | [diff] [blame] | 206 | struct net *fl_net; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 207 | }; |
| 208 | |
Harvey Harrison | f3a7c66 | 2009-02-14 22:58:35 -0800 | [diff] [blame] | 209 | #define IPV6_FLOWINFO_MASK cpu_to_be32(0x0FFFFFFF) |
| 210 | #define IPV6_FLOWLABEL_MASK cpu_to_be32(0x000FFFFF) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 211 | |
Eric Dumazet | fd2c3ef | 2009-11-03 03:26:03 +0000 | [diff] [blame] | 212 | struct ipv6_fl_socklist { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 213 | struct ipv6_fl_socklist *next; |
| 214 | struct ip6_flowlabel *fl; |
| 215 | }; |
| 216 | |
Al Viro | 90bcaf7 | 2006-11-08 00:25:17 -0800 | [diff] [blame] | 217 | extern struct ip6_flowlabel *fl6_sock_lookup(struct sock *sk, __be32 label); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 218 | extern struct ipv6_txoptions *fl6_merge_options(struct ipv6_txoptions * opt_space, |
| 219 | struct ip6_flowlabel * fl, |
| 220 | struct ipv6_txoptions * fopt); |
| 221 | extern void fl6_free_socklist(struct sock *sk); |
| 222 | extern int ipv6_flowlabel_opt(struct sock *sk, char __user *optval, int optlen); |
Daniel Lezcano | 0a3e78a | 2007-12-11 02:23:18 -0800 | [diff] [blame] | 223 | extern int ip6_flowlabel_init(void); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 224 | extern void ip6_flowlabel_cleanup(void); |
| 225 | |
| 226 | static inline void fl6_sock_release(struct ip6_flowlabel *fl) |
| 227 | { |
| 228 | if (fl) |
| 229 | atomic_dec(&fl->users); |
| 230 | } |
| 231 | |
Denis V. Lunev | 725a8ff | 2008-07-19 00:28:58 -0700 | [diff] [blame] | 232 | extern int ip6_ra_control(struct sock *sk, int sel); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 233 | |
Herbert Xu | e5bbef2 | 2007-10-15 12:50:28 -0700 | [diff] [blame] | 234 | extern int ipv6_parse_hopopts(struct sk_buff *skb); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 235 | |
| 236 | extern struct ipv6_txoptions * ipv6_dup_options(struct sock *sk, struct ipv6_txoptions *opt); |
YOSHIFUJI Hideaki | 333fad5 | 2005-09-08 09:59:17 +0900 | [diff] [blame] | 237 | extern struct ipv6_txoptions * ipv6_renew_options(struct sock *sk, struct ipv6_txoptions *opt, |
| 238 | int newtype, |
| 239 | struct ipv6_opt_hdr __user *newopt, |
| 240 | int newoptlen); |
YOSHIFUJI Hideaki | df9890c | 2005-11-20 12:23:18 +0900 | [diff] [blame] | 241 | struct ipv6_txoptions *ipv6_fixup_options(struct ipv6_txoptions *opt_space, |
| 242 | struct ipv6_txoptions *opt); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 243 | |
Arnaldo Carvalho de Melo | 399c07d | 2005-12-13 23:24:28 -0800 | [diff] [blame] | 244 | extern int ipv6_opt_accepted(struct sock *sk, struct sk_buff *skb); |
| 245 | |
Pavel Emelyanov | e5a2bb8 | 2008-01-22 06:06:23 -0800 | [diff] [blame] | 246 | int ip6_frag_nqueues(struct net *net); |
Pavel Emelyanov | 6ddc082 | 2008-01-22 06:07:25 -0800 | [diff] [blame] | 247 | int ip6_frag_mem(struct net *net); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 248 | |
Shan Wei | 7c070aa | 2010-01-20 10:42:41 +0100 | [diff] [blame^] | 249 | #define IPV6_FRAG_HIGH_THRESH 262144 /* == 256*1024 */ |
| 250 | #define IPV6_FRAG_LOW_THRESH 196608 /* == 192*1024 */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 251 | #define IPV6_FRAG_TIMEOUT (60*HZ) /* 60 seconds */ |
| 252 | |
YOSHIFUJI Hideaki | b1cacb6 | 2005-11-08 09:38:12 -0800 | [diff] [blame] | 253 | extern int __ipv6_addr_type(const struct in6_addr *addr); |
| 254 | static inline int ipv6_addr_type(const struct in6_addr *addr) |
| 255 | { |
| 256 | return __ipv6_addr_type(addr) & 0xffff; |
| 257 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 258 | |
| 259 | static inline int ipv6_addr_scope(const struct in6_addr *addr) |
| 260 | { |
YOSHIFUJI Hideaki | b1cacb6 | 2005-11-08 09:38:12 -0800 | [diff] [blame] | 261 | return __ipv6_addr_type(addr) & IPV6_ADDR_SCOPE_MASK; |
| 262 | } |
| 263 | |
| 264 | static inline int __ipv6_addr_src_scope(int type) |
| 265 | { |
| 266 | return (type == IPV6_ADDR_ANY ? __IPV6_ADDR_SCOPE_INVALID : (type >> 16)); |
| 267 | } |
| 268 | |
| 269 | static inline int ipv6_addr_src_scope(const struct in6_addr *addr) |
| 270 | { |
| 271 | return __ipv6_addr_src_scope(__ipv6_addr_type(addr)); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 272 | } |
| 273 | |
| 274 | static inline int ipv6_addr_cmp(const struct in6_addr *a1, const struct in6_addr *a2) |
| 275 | { |
Eric Dumazet | db3459d | 2007-05-03 17:39:04 -0700 | [diff] [blame] | 276 | return memcmp(a1, a2, sizeof(struct in6_addr)); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 277 | } |
| 278 | |
Patrick McHardy | f2ffd9e | 2006-03-20 18:03:16 -0800 | [diff] [blame] | 279 | static inline int |
| 280 | ipv6_masked_addr_cmp(const struct in6_addr *a1, const struct in6_addr *m, |
| 281 | const struct in6_addr *a2) |
| 282 | { |
YOSHIFUJI Hideaki | fed85383 | 2008-04-11 20:17:55 +0900 | [diff] [blame] | 283 | return (!!(((a1->s6_addr32[0] ^ a2->s6_addr32[0]) & m->s6_addr32[0]) | |
| 284 | ((a1->s6_addr32[1] ^ a2->s6_addr32[1]) & m->s6_addr32[1]) | |
| 285 | ((a1->s6_addr32[2] ^ a2->s6_addr32[2]) & m->s6_addr32[2]) | |
| 286 | ((a1->s6_addr32[3] ^ a2->s6_addr32[3]) & m->s6_addr32[3]))); |
Patrick McHardy | f2ffd9e | 2006-03-20 18:03:16 -0800 | [diff] [blame] | 287 | } |
| 288 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 289 | static inline void ipv6_addr_copy(struct in6_addr *a1, const struct in6_addr *a2) |
| 290 | { |
Eric Dumazet | db3459d | 2007-05-03 17:39:04 -0700 | [diff] [blame] | 291 | memcpy(a1, a2, sizeof(struct in6_addr)); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 292 | } |
| 293 | |
| 294 | static inline void ipv6_addr_prefix(struct in6_addr *pfx, |
| 295 | const struct in6_addr *addr, |
| 296 | int plen) |
| 297 | { |
| 298 | /* caller must guarantee 0 <= plen <= 128 */ |
| 299 | int o = plen >> 3, |
| 300 | b = plen & 0x7; |
| 301 | |
Eric Dumazet | db3459d | 2007-05-03 17:39:04 -0700 | [diff] [blame] | 302 | memset(pfx->s6_addr, 0, sizeof(pfx->s6_addr)); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 303 | memcpy(pfx->s6_addr, addr, o); |
Eric Dumazet | db3459d | 2007-05-03 17:39:04 -0700 | [diff] [blame] | 304 | if (b != 0) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 305 | pfx->s6_addr[o] = addr->s6_addr[o] & (0xff00 >> b); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 306 | } |
| 307 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 308 | static inline void ipv6_addr_set(struct in6_addr *addr, |
Al Viro | 48818f8 | 2006-09-27 18:44:54 -0700 | [diff] [blame] | 309 | __be32 w1, __be32 w2, |
| 310 | __be32 w3, __be32 w4) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 311 | { |
| 312 | addr->s6_addr32[0] = w1; |
| 313 | addr->s6_addr32[1] = w2; |
| 314 | addr->s6_addr32[2] = w3; |
| 315 | addr->s6_addr32[3] = w4; |
| 316 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 317 | |
| 318 | static inline int ipv6_addr_equal(const struct in6_addr *a1, |
| 319 | const struct in6_addr *a2) |
| 320 | { |
YOSHIFUJI Hideaki | fed85383 | 2008-04-11 20:17:55 +0900 | [diff] [blame] | 321 | return (((a1->s6_addr32[0] ^ a2->s6_addr32[0]) | |
| 322 | (a1->s6_addr32[1] ^ a2->s6_addr32[1]) | |
| 323 | (a1->s6_addr32[2] ^ a2->s6_addr32[2]) | |
| 324 | (a1->s6_addr32[3] ^ a2->s6_addr32[3])) == 0); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 325 | } |
| 326 | |
Al Viro | 48818f8 | 2006-09-27 18:44:54 -0700 | [diff] [blame] | 327 | static inline int __ipv6_prefix_equal(const __be32 *a1, const __be32 *a2, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 328 | unsigned int prefixlen) |
| 329 | { |
| 330 | unsigned pdw, pbi; |
| 331 | |
| 332 | /* check complete u32 in prefix */ |
| 333 | pdw = prefixlen >> 5; |
| 334 | if (pdw && memcmp(a1, a2, pdw << 2)) |
| 335 | return 0; |
| 336 | |
| 337 | /* check incomplete u32 in prefix */ |
| 338 | pbi = prefixlen & 0x1f; |
| 339 | if (pbi && ((a1[pdw] ^ a2[pdw]) & htonl((0xffffffff) << (32 - pbi)))) |
| 340 | return 0; |
| 341 | |
| 342 | return 1; |
| 343 | } |
| 344 | |
| 345 | static inline int ipv6_prefix_equal(const struct in6_addr *a1, |
| 346 | const struct in6_addr *a2, |
| 347 | unsigned int prefixlen) |
| 348 | { |
| 349 | return __ipv6_prefix_equal(a1->s6_addr32, a2->s6_addr32, |
| 350 | prefixlen); |
| 351 | } |
| 352 | |
Pavel Emelyanov | 2588fe1 | 2007-10-17 19:44:34 -0700 | [diff] [blame] | 353 | struct inet_frag_queue; |
Pavel Emelyanov | 2588fe1 | 2007-10-17 19:44:34 -0700 | [diff] [blame] | 354 | |
Patrick McHardy | 0b5ccb2 | 2009-12-15 16:59:18 +0100 | [diff] [blame] | 355 | enum ip6_defrag_users { |
| 356 | IP6_DEFRAG_LOCAL_DELIVER, |
| 357 | IP6_DEFRAG_CONNTRACK_IN, |
| 358 | IP6_DEFRAG_CONNTRACK_OUT, |
Patrick McHardy | 8fa9ff6 | 2009-12-15 16:59:59 +0100 | [diff] [blame] | 359 | IP6_DEFRAG_CONNTRACK_BRIDGE_IN, |
Patrick McHardy | 0b5ccb2 | 2009-12-15 16:59:18 +0100 | [diff] [blame] | 360 | }; |
| 361 | |
Pavel Emelyanov | c6fda28 | 2007-10-17 19:46:47 -0700 | [diff] [blame] | 362 | struct ip6_create_arg { |
| 363 | __be32 id; |
Patrick McHardy | 0b5ccb2 | 2009-12-15 16:59:18 +0100 | [diff] [blame] | 364 | u32 user; |
Pavel Emelyanov | c6fda28 | 2007-10-17 19:46:47 -0700 | [diff] [blame] | 365 | struct in6_addr *src; |
| 366 | struct in6_addr *dst; |
| 367 | }; |
| 368 | |
| 369 | void ip6_frag_init(struct inet_frag_queue *q, void *a); |
Pavel Emelyanov | abd6523 | 2007-10-17 19:47:21 -0700 | [diff] [blame] | 370 | int ip6_frag_match(struct inet_frag_queue *q, void *a); |
Pavel Emelyanov | c6fda28 | 2007-10-17 19:46:47 -0700 | [diff] [blame] | 371 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 372 | static inline int ipv6_addr_any(const struct in6_addr *a) |
| 373 | { |
| 374 | return ((a->s6_addr32[0] | a->s6_addr32[1] | |
| 375 | a->s6_addr32[2] | a->s6_addr32[3] ) == 0); |
| 376 | } |
| 377 | |
YOSHIFUJI Hideaki | f630e43 | 2008-06-19 16:33:57 -0700 | [diff] [blame] | 378 | static inline int ipv6_addr_loopback(const struct in6_addr *a) |
| 379 | { |
| 380 | return ((a->s6_addr32[0] | a->s6_addr32[1] | |
| 381 | a->s6_addr32[2] | (a->s6_addr32[3] ^ htonl(1))) == 0); |
| 382 | } |
| 383 | |
Brian Haley | e773e4f | 2007-08-24 23:16:08 -0700 | [diff] [blame] | 384 | static inline int ipv6_addr_v4mapped(const struct in6_addr *a) |
| 385 | { |
YOSHIFUJI Hideaki | fed85383 | 2008-04-11 20:17:55 +0900 | [diff] [blame] | 386 | return ((a->s6_addr32[0] | a->s6_addr32[1] | |
| 387 | (a->s6_addr32[2] ^ htonl(0x0000ffff))) == 0); |
Brian Haley | e773e4f | 2007-08-24 23:16:08 -0700 | [diff] [blame] | 388 | } |
| 389 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 390 | /* |
Juha-Matti Tapio | 99cd07a | 2008-02-28 20:55:46 -0800 | [diff] [blame] | 391 | * Check for a RFC 4843 ORCHID address |
| 392 | * (Overlay Routable Cryptographic Hash Identifiers) |
| 393 | */ |
| 394 | static inline int ipv6_addr_orchid(const struct in6_addr *a) |
| 395 | { |
| 396 | return ((a->s6_addr32[0] & htonl(0xfffffff0)) |
| 397 | == htonl(0x20010010)); |
| 398 | } |
| 399 | |
Aurélien Charbon | f15364b | 2008-01-18 15:50:56 +0100 | [diff] [blame] | 400 | static inline void ipv6_addr_set_v4mapped(const __be32 addr, |
| 401 | struct in6_addr *v4mapped) |
| 402 | { |
| 403 | ipv6_addr_set(v4mapped, |
| 404 | 0, 0, |
| 405 | htonl(0x0000FFFF), |
| 406 | addr); |
| 407 | } |
| 408 | |
Juha-Matti Tapio | 99cd07a | 2008-02-28 20:55:46 -0800 | [diff] [blame] | 409 | /* |
YOSHIFUJI Hideaki | 971f359 | 2005-11-08 09:37:56 -0800 | [diff] [blame] | 410 | * find the first different bit between two addresses |
| 411 | * length of address must be a multiple of 32bits |
| 412 | */ |
| 413 | static inline int __ipv6_addr_diff(const void *token1, const void *token2, int addrlen) |
| 414 | { |
Al Viro | ef296f5 | 2006-11-14 20:56:33 -0800 | [diff] [blame] | 415 | const __be32 *a1 = token1, *a2 = token2; |
YOSHIFUJI Hideaki | 971f359 | 2005-11-08 09:37:56 -0800 | [diff] [blame] | 416 | int i; |
| 417 | |
| 418 | addrlen >>= 2; |
| 419 | |
| 420 | for (i = 0; i < addrlen; i++) { |
Al Viro | ef296f5 | 2006-11-14 20:56:33 -0800 | [diff] [blame] | 421 | __be32 xb = a1[i] ^ a2[i]; |
| 422 | if (xb) |
| 423 | return i * 32 + 32 - fls(ntohl(xb)); |
YOSHIFUJI Hideaki | 971f359 | 2005-11-08 09:37:56 -0800 | [diff] [blame] | 424 | } |
| 425 | |
| 426 | /* |
| 427 | * we should *never* get to this point since that |
| 428 | * would mean the addrs are equal |
| 429 | * |
| 430 | * However, we do get to it 8) And exacly, when |
| 431 | * addresses are equal 8) |
| 432 | * |
| 433 | * ip route add 1111::/128 via ... |
| 434 | * ip route add 1111::/64 via ... |
| 435 | * and we are here. |
| 436 | * |
| 437 | * Ideally, this function should stop comparison |
| 438 | * at prefix length. It does not, but it is still OK, |
| 439 | * if returned value is greater than prefix length. |
| 440 | * --ANK (980803) |
| 441 | */ |
| 442 | return (addrlen << 5); |
| 443 | } |
| 444 | |
| 445 | static inline int ipv6_addr_diff(const struct in6_addr *a1, const struct in6_addr *a2) |
| 446 | { |
| 447 | return __ipv6_addr_diff(a1, a2, sizeof(struct in6_addr)); |
| 448 | } |
| 449 | |
Sridhar Samudrala | 7ea2f2c | 2009-07-09 08:10:01 +0000 | [diff] [blame] | 450 | static __inline__ void ipv6_select_ident(struct frag_hdr *fhdr) |
| 451 | { |
| 452 | static u32 ipv6_fragmentation_id = 1; |
| 453 | static DEFINE_SPINLOCK(ip6_id_lock); |
| 454 | |
| 455 | spin_lock_bh(&ip6_id_lock); |
| 456 | fhdr->identification = htonl(ipv6_fragmentation_id); |
| 457 | if (++ipv6_fragmentation_id == 0) |
| 458 | ipv6_fragmentation_id = 1; |
| 459 | spin_unlock_bh(&ip6_id_lock); |
| 460 | } |
| 461 | |
YOSHIFUJI Hideaki | 971f359 | 2005-11-08 09:37:56 -0800 | [diff] [blame] | 462 | /* |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 463 | * Prototypes exported by ipv6 |
| 464 | */ |
| 465 | |
| 466 | /* |
| 467 | * rcv function (called from netdevice level) |
| 468 | */ |
| 469 | |
| 470 | extern int ipv6_rcv(struct sk_buff *skb, |
| 471 | struct net_device *dev, |
David S. Miller | f2ccd8f | 2005-08-09 19:34:12 -0700 | [diff] [blame] | 472 | struct packet_type *pt, |
| 473 | struct net_device *orig_dev); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 474 | |
Patrick McHardy | b05e106 | 2006-01-06 23:03:34 -0800 | [diff] [blame] | 475 | extern int ip6_rcv_finish(struct sk_buff *skb); |
| 476 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 477 | /* |
| 478 | * upper-layer output functions |
| 479 | */ |
| 480 | extern int ip6_xmit(struct sock *sk, |
| 481 | struct sk_buff *skb, |
| 482 | struct flowi *fl, |
| 483 | struct ipv6_txoptions *opt, |
| 484 | int ipfragok); |
| 485 | |
| 486 | extern int ip6_nd_hdr(struct sock *sk, |
| 487 | struct sk_buff *skb, |
| 488 | struct net_device *dev, |
YOSHIFUJI Hideaki | 9acd9f3 | 2008-04-10 15:42:10 +0900 | [diff] [blame] | 489 | const struct in6_addr *saddr, |
| 490 | const struct in6_addr *daddr, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 491 | int proto, int len); |
| 492 | |
| 493 | extern int ip6_find_1stfragopt(struct sk_buff *skb, u8 **nexthdr); |
| 494 | |
| 495 | extern int ip6_append_data(struct sock *sk, |
| 496 | int getfrag(void *from, char *to, int offset, int len, int odd, struct sk_buff *skb), |
| 497 | void *from, |
| 498 | int length, |
| 499 | int transhdrlen, |
| 500 | int hlimit, |
YOSHIFUJI Hideaki | 41a1f8e | 2005-09-08 10:19:03 +0900 | [diff] [blame] | 501 | int tclass, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 502 | struct ipv6_txoptions *opt, |
| 503 | struct flowi *fl, |
| 504 | struct rt6_info *rt, |
| 505 | unsigned int flags); |
| 506 | |
| 507 | extern int ip6_push_pending_frames(struct sock *sk); |
| 508 | |
| 509 | extern void ip6_flush_pending_frames(struct sock *sk); |
| 510 | |
| 511 | extern int ip6_dst_lookup(struct sock *sk, |
| 512 | struct dst_entry **dst, |
| 513 | struct flowi *fl); |
David S. Miller | 14e50e5 | 2007-05-24 18:17:54 -0700 | [diff] [blame] | 514 | extern int ip6_dst_blackhole(struct sock *sk, |
| 515 | struct dst_entry **dst, |
| 516 | struct flowi *fl); |
Herbert Xu | 497c615 | 2006-07-30 20:19:33 -0700 | [diff] [blame] | 517 | extern int ip6_sk_dst_lookup(struct sock *sk, |
| 518 | struct dst_entry **dst, |
| 519 | struct flowi *fl); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 520 | |
| 521 | /* |
| 522 | * skb processing functions |
| 523 | */ |
| 524 | |
| 525 | extern int ip6_output(struct sk_buff *skb); |
| 526 | extern int ip6_forward(struct sk_buff *skb); |
| 527 | extern int ip6_input(struct sk_buff *skb); |
| 528 | extern int ip6_mc_input(struct sk_buff *skb); |
| 529 | |
Herbert Xu | ef76bc2 | 2008-01-11 19:15:08 -0800 | [diff] [blame] | 530 | extern int __ip6_local_out(struct sk_buff *skb); |
| 531 | extern int ip6_local_out(struct sk_buff *skb); |
| 532 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 533 | /* |
| 534 | * Extension header (options) processing |
| 535 | */ |
| 536 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 537 | extern void ipv6_push_nfrag_opts(struct sk_buff *skb, |
| 538 | struct ipv6_txoptions *opt, |
| 539 | u8 *proto, |
| 540 | struct in6_addr **daddr_p); |
| 541 | extern void ipv6_push_frag_opts(struct sk_buff *skb, |
| 542 | struct ipv6_txoptions *opt, |
| 543 | u8 *proto); |
| 544 | |
| 545 | extern int ipv6_skip_exthdr(const struct sk_buff *, int start, |
Herbert Xu | 0d3d077 | 2005-04-24 20:16:19 -0700 | [diff] [blame] | 546 | u8 *nexthdrp); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 547 | |
| 548 | extern int ipv6_ext_hdr(u8 nexthdr); |
| 549 | |
Masahide NAKAMURA | c61a404 | 2006-08-23 19:18:35 -0700 | [diff] [blame] | 550 | extern int ipv6_find_tlv(struct sk_buff *skb, int offset, int type); |
| 551 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 552 | /* |
| 553 | * socket options (ipv6_sockglue.c) |
| 554 | */ |
| 555 | |
| 556 | extern int ipv6_setsockopt(struct sock *sk, int level, |
| 557 | int optname, |
| 558 | char __user *optval, |
David S. Miller | b705884 | 2009-09-30 16:12:20 -0700 | [diff] [blame] | 559 | unsigned int optlen); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 560 | extern int ipv6_getsockopt(struct sock *sk, int level, |
| 561 | int optname, |
| 562 | char __user *optval, |
| 563 | int __user *optlen); |
Dmitry Mishin | 3fdadf7 | 2006-03-20 22:45:21 -0800 | [diff] [blame] | 564 | extern int compat_ipv6_setsockopt(struct sock *sk, |
| 565 | int level, |
| 566 | int optname, |
| 567 | char __user *optval, |
David S. Miller | b705884 | 2009-09-30 16:12:20 -0700 | [diff] [blame] | 568 | unsigned int optlen); |
Dmitry Mishin | 3fdadf7 | 2006-03-20 22:45:21 -0800 | [diff] [blame] | 569 | extern int compat_ipv6_getsockopt(struct sock *sk, |
| 570 | int level, |
| 571 | int optname, |
| 572 | char __user *optval, |
| 573 | int __user *optlen); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 574 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 575 | extern int ip6_datagram_connect(struct sock *sk, |
| 576 | struct sockaddr *addr, int addr_len); |
| 577 | |
| 578 | extern int ipv6_recv_error(struct sock *sk, struct msghdr *msg, int len); |
Al Viro | e69a4adc | 2006-11-14 20:56:00 -0800 | [diff] [blame] | 579 | extern void ipv6_icmp_error(struct sock *sk, struct sk_buff *skb, int err, __be16 port, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 580 | u32 info, u8 *payload); |
| 581 | extern void ipv6_local_error(struct sock *sk, int err, struct flowi *fl, u32 info); |
| 582 | |
| 583 | extern int inet6_release(struct socket *sock); |
| 584 | extern int inet6_bind(struct socket *sock, struct sockaddr *uaddr, |
| 585 | int addr_len); |
| 586 | extern int inet6_getname(struct socket *sock, struct sockaddr *uaddr, |
| 587 | int *uaddr_len, int peer); |
| 588 | extern int inet6_ioctl(struct socket *sock, unsigned int cmd, |
| 589 | unsigned long arg); |
| 590 | |
Arnaldo Carvalho de Melo | d8313f5 | 2005-12-13 23:25:44 -0800 | [diff] [blame] | 591 | extern int inet6_hash_connect(struct inet_timewait_death_row *death_row, |
| 592 | struct sock *sk); |
| 593 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 594 | /* |
| 595 | * reassembly.c |
| 596 | */ |
Eric Dumazet | 90ddc4f | 2005-12-22 12:49:22 -0800 | [diff] [blame] | 597 | extern const struct proto_ops inet6_stream_ops; |
| 598 | extern const struct proto_ops inet6_dgram_ops; |
Arnaldo Carvalho de Melo | 2038073 | 2005-08-16 02:18:02 -0300 | [diff] [blame] | 599 | |
Arnaldo Carvalho de Melo | 14c8502 | 2005-12-27 02:43:12 -0200 | [diff] [blame] | 600 | struct group_source_req; |
| 601 | struct group_filter; |
| 602 | |
Arnaldo Carvalho de Melo | 2038073 | 2005-08-16 02:18:02 -0300 | [diff] [blame] | 603 | extern int ip6_mc_source(int add, int omode, struct sock *sk, |
| 604 | struct group_source_req *pgsr); |
| 605 | extern int ip6_mc_msfilter(struct sock *sk, struct group_filter *gsf); |
| 606 | extern int ip6_mc_msfget(struct sock *sk, struct group_filter *gsf, |
| 607 | struct group_filter __user *optval, |
| 608 | int __user *optlen); |
Ilpo Järvinen | 93c8b90 | 2008-10-01 02:48:31 -0700 | [diff] [blame] | 609 | extern unsigned int inet6_hash_frag(__be32 id, const struct in6_addr *saddr, |
| 610 | const struct in6_addr *daddr, u32 rnd); |
Arnaldo Carvalho de Melo | 2038073 | 2005-08-16 02:18:02 -0300 | [diff] [blame] | 611 | |
| 612 | #ifdef CONFIG_PROC_FS |
Daniel Lezcano | 6ab57e7 | 2008-03-26 16:52:32 -0700 | [diff] [blame] | 613 | extern int ac6_proc_init(struct net *net); |
| 614 | extern void ac6_proc_exit(struct net *net); |
Arnaldo Carvalho de Melo | 2038073 | 2005-08-16 02:18:02 -0300 | [diff] [blame] | 615 | extern int raw6_proc_init(void); |
| 616 | extern void raw6_proc_exit(void); |
Daniel Lezcano | 6f8b13b | 2008-03-21 04:14:45 -0700 | [diff] [blame] | 617 | extern int tcp6_proc_init(struct net *net); |
| 618 | extern void tcp6_proc_exit(struct net *net); |
Daniel Lezcano | 0c96d8c | 2008-03-21 04:14:17 -0700 | [diff] [blame] | 619 | extern int udp6_proc_init(struct net *net); |
| 620 | extern void udp6_proc_exit(struct net *net); |
Gerrit Renker | ba4e58e | 2006-11-27 11:10:57 -0800 | [diff] [blame] | 621 | extern int udplite6_proc_init(void); |
| 622 | extern void udplite6_proc_exit(void); |
Arnaldo Carvalho de Melo | 2038073 | 2005-08-16 02:18:02 -0300 | [diff] [blame] | 623 | extern int ipv6_misc_proc_init(void); |
| 624 | extern void ipv6_misc_proc_exit(void); |
Herbert Xu | 7f7d9a6 | 2007-04-24 21:54:09 -0700 | [diff] [blame] | 625 | extern int snmp6_register_dev(struct inet6_dev *idev); |
| 626 | extern int snmp6_unregister_dev(struct inet6_dev *idev); |
Arnaldo Carvalho de Melo | 2038073 | 2005-08-16 02:18:02 -0300 | [diff] [blame] | 627 | |
Herbert Xu | 7f7d9a6 | 2007-04-24 21:54:09 -0700 | [diff] [blame] | 628 | #else |
Daniel Lezcano | 6ab57e7 | 2008-03-26 16:52:32 -0700 | [diff] [blame] | 629 | static inline int ac6_proc_init(struct net *net) { return 0; } |
| 630 | static inline void ac6_proc_exit(struct net *net) { } |
| 631 | static inline int snmp6_register_dev(struct inet6_dev *idev) { return 0; } |
| 632 | static inline int snmp6_unregister_dev(struct inet6_dev *idev) { return 0; } |
Arnaldo Carvalho de Melo | 2038073 | 2005-08-16 02:18:02 -0300 | [diff] [blame] | 633 | #endif |
| 634 | |
| 635 | #ifdef CONFIG_SYSCTL |
Daniel Lezcano | 760f2d0 | 2008-01-10 02:53:43 -0800 | [diff] [blame] | 636 | extern ctl_table ipv6_route_table_template[]; |
| 637 | extern ctl_table ipv6_icmp_table_template[]; |
Arnaldo Carvalho de Melo | 2038073 | 2005-08-16 02:18:02 -0300 | [diff] [blame] | 638 | |
Daniel Lezcano | 6de1a91 | 2008-02-05 02:57:59 -0800 | [diff] [blame] | 639 | extern struct ctl_table *ipv6_icmp_sysctl_init(struct net *net); |
| 640 | extern struct ctl_table *ipv6_route_sysctl_init(struct net *net); |
Daniel Lezcano | 291480c | 2008-01-10 02:47:55 -0800 | [diff] [blame] | 641 | extern int ipv6_sysctl_register(void); |
Arnaldo Carvalho de Melo | 2038073 | 2005-08-16 02:18:02 -0300 | [diff] [blame] | 642 | extern void ipv6_sysctl_unregister(void); |
Al Viro | eeb61f7 | 2008-07-27 08:59:33 +0100 | [diff] [blame] | 643 | extern int ipv6_static_sysctl_register(void); |
| 644 | extern void ipv6_static_sysctl_unregister(void); |
Arnaldo Carvalho de Melo | 2038073 | 2005-08-16 02:18:02 -0300 | [diff] [blame] | 645 | #endif |
| 646 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 647 | #endif /* __KERNEL__ */ |
| 648 | #endif /* _NET_IPV6_H */ |