Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1 | #ifndef _IPV6_H |
| 2 | #define _IPV6_H |
| 3 | |
David Howells | 607ca46 | 2012-10-13 10:46:48 +0100 | [diff] [blame] | 4 | #include <uapi/linux/ipv6.h> |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 5 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 6 | #define ipv6_optlen(p) (((p)->hdrlen+1) << 3) |
Paul Durrant | 1431fb3 | 2013-12-03 17:39:29 +0000 | [diff] [blame] | 7 | #define ipv6_authlen(p) (((p)->hdrlen+2) << 2) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 8 | /* |
| 9 | * This structure contains configuration options per IPv6 link. |
| 10 | */ |
| 11 | struct ipv6_devconf { |
| 12 | __s32 forwarding; |
| 13 | __s32 hop_limit; |
| 14 | __s32 mtu6; |
| 15 | __s32 accept_ra; |
| 16 | __s32 accept_redirects; |
| 17 | __s32 autoconf; |
| 18 | __s32 dad_transmits; |
| 19 | __s32 rtr_solicits; |
| 20 | __s32 rtr_solicit_interval; |
Maciej Żenczykowski | bd11f07 | 2016-09-27 23:57:58 -0700 | [diff] [blame] | 21 | __s32 rtr_solicit_max_interval; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 22 | __s32 rtr_solicit_delay; |
| 23 | __s32 force_mld_version; |
Hannes Frederic Sowa | fc4eba5 | 2013-08-14 01:03:46 +0200 | [diff] [blame] | 24 | __s32 mldv1_unsolicited_report_interval; |
| 25 | __s32 mldv2_unsolicited_report_interval; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 26 | __s32 use_tempaddr; |
| 27 | __s32 temp_valid_lft; |
| 28 | __s32 temp_prefered_lft; |
| 29 | __s32 regen_max_retry; |
| 30 | __s32 max_desync_factor; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 31 | __s32 max_addresses; |
YOSHIFUJI Hideaki | 65f5c7c | 2006-03-20 16:55:08 -0800 | [diff] [blame] | 32 | __s32 accept_ra_defrtr; |
Hangbin Liu | 8013d1d | 2015-07-30 14:28:42 +0800 | [diff] [blame] | 33 | __s32 accept_ra_min_hop_limit; |
YOSHIFUJI Hideaki | c4fd30e | 2006-03-20 16:55:26 -0800 | [diff] [blame] | 34 | __s32 accept_ra_pinfo; |
Andy Gospodarek | 35103d1 | 2015-08-13 10:39:01 -0400 | [diff] [blame] | 35 | __s32 ignore_routes_with_linkdown; |
YOSHIFUJI Hideaki | 930d6ff | 2006-03-20 17:05:30 -0800 | [diff] [blame] | 36 | #ifdef CONFIG_IPV6_ROUTER_PREF |
| 37 | __s32 accept_ra_rtr_pref; |
YOSHIFUJI Hideaki | 52e1635 | 2006-03-20 17:05:47 -0800 | [diff] [blame] | 38 | __s32 rtr_probe_interval; |
YOSHIFUJI Hideaki | 09c884d | 2006-03-20 17:07:03 -0800 | [diff] [blame] | 39 | #ifdef CONFIG_IPV6_ROUTE_INFO |
| 40 | __s32 accept_ra_rt_info_max_plen; |
| 41 | #endif |
YOSHIFUJI Hideaki | 930d6ff | 2006-03-20 17:05:30 -0800 | [diff] [blame] | 42 | #endif |
Lorenzo Colitti | 9fcb87d | 2014-03-26 19:35:41 +0900 | [diff] [blame] | 43 | __s32 accept_ra_rt_table; |
YOSHIFUJI Hideaki | fbea49e | 2006-09-22 14:43:49 -0700 | [diff] [blame] | 44 | __s32 proxy_ndp; |
YOSHIFUJI Hideaki | 0bcbc92 | 2007-04-24 14:58:30 -0700 | [diff] [blame] | 45 | __s32 accept_source_route; |
Ben Greear | d933319 | 2014-06-25 14:44:53 -0700 | [diff] [blame] | 46 | __s32 accept_ra_from_local; |
Neil Horman | 95c385b | 2007-04-25 17:08:10 -0700 | [diff] [blame] | 47 | #ifdef CONFIG_IPV6_OPTIMISTIC_DAD |
| 48 | __s32 optimistic_dad; |
Erik Kline | 7fd2561 | 2014-10-28 18:11:14 +0900 | [diff] [blame] | 49 | __s32 use_optimistic; |
Neil Horman | 95c385b | 2007-04-25 17:08:10 -0700 | [diff] [blame] | 50 | #endif |
YOSHIFUJI Hideaki | 7bc570c | 2008-04-03 09:22:53 +0900 | [diff] [blame] | 51 | #ifdef CONFIG_IPV6_MROUTE |
| 52 | __s32 mc_forwarding; |
| 53 | #endif |
YOSHIFUJI Hideaki | 778d80b | 2008-06-28 14:17:11 +0900 | [diff] [blame] | 54 | __s32 disable_ipv6; |
Johannes Berg | abbc304 | 2016-02-04 13:31:19 +0100 | [diff] [blame] | 55 | __s32 drop_unicast_in_l2_multicast; |
YOSHIFUJI Hideaki | 1b34be7 | 2008-06-28 14:18:38 +0900 | [diff] [blame] | 56 | __s32 accept_dad; |
Octavian Purdila | f7734fd | 2009-10-02 11:39:15 +0000 | [diff] [blame] | 57 | __s32 force_tllao; |
Hannes Frederic Sowa | 5cb0443 | 2012-11-06 16:46:20 +0000 | [diff] [blame] | 58 | __s32 ndisc_notify; |
Hannes Frederic Sowa | b800c3b | 2013-08-27 01:36:51 +0200 | [diff] [blame] | 59 | __s32 suppress_frag_ndisc; |
Harout Hedeshian | c2943f1 | 2015-01-20 10:06:05 -0700 | [diff] [blame] | 60 | __s32 accept_ra_mtu; |
Johannes Berg | 7a02bf8 | 2016-02-04 13:31:20 +0100 | [diff] [blame] | 61 | __s32 drop_unsolicited_na; |
Hannes Frederic Sowa | 3d1bec9 | 2015-03-23 23:36:00 +0100 | [diff] [blame] | 62 | struct ipv6_stable_secret { |
| 63 | bool initialized; |
| 64 | struct in6_addr secret; |
| 65 | } stable_secret; |
Erik Kline | 3985e8a | 2015-07-22 16:38:25 +0900 | [diff] [blame] | 66 | __s32 use_oif_addrs_only; |
David Ahern | f1705ec | 2016-02-24 09:25:37 -0800 | [diff] [blame] | 67 | __s32 keep_addr_on_down; |
Konstantin Khlebnikov | 607ea7c | 2016-04-18 14:41:10 +0300 | [diff] [blame] | 68 | |
| 69 | struct ctl_table_header *sysctl_header; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 70 | }; |
Brian Haley | 56d417b | 2009-06-01 03:07:33 -0700 | [diff] [blame] | 71 | |
| 72 | struct ipv6_params { |
| 73 | __s32 disable_ipv6; |
| 74 | __s32 autoconf; |
| 75 | }; |
| 76 | extern struct ipv6_params ipv6_defaults; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 77 | #include <linux/icmpv6.h> |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 78 | #include <linux/tcp.h> |
| 79 | #include <linux/udp.h> |
| 80 | |
Arnaldo Carvalho de Melo | 14c8502 | 2005-12-27 02:43:12 -0200 | [diff] [blame] | 81 | #include <net/inet_sock.h> |
| 82 | |
Arnaldo Carvalho de Melo | 0660e03 | 2007-04-25 17:54:47 -0700 | [diff] [blame] | 83 | static inline struct ipv6hdr *ipv6_hdr(const struct sk_buff *skb) |
| 84 | { |
| 85 | return (struct ipv6hdr *)skb_network_header(skb); |
| 86 | } |
| 87 | |
Joseph Gasparakis | 6a674e9 | 2012-12-07 14:14:14 +0000 | [diff] [blame] | 88 | static inline struct ipv6hdr *inner_ipv6_hdr(const struct sk_buff *skb) |
| 89 | { |
| 90 | return (struct ipv6hdr *)skb_inner_network_header(skb); |
| 91 | } |
| 92 | |
Arnaldo Carvalho de Melo | 39b8916 | 2007-04-10 21:06:25 -0700 | [diff] [blame] | 93 | static inline struct ipv6hdr *ipipv6_hdr(const struct sk_buff *skb) |
| 94 | { |
Arnaldo Carvalho de Melo | 9c70220 | 2007-04-25 18:04:18 -0700 | [diff] [blame] | 95 | return (struct ipv6hdr *)skb_transport_header(skb); |
Arnaldo Carvalho de Melo | 39b8916 | 2007-04-10 21:06:25 -0700 | [diff] [blame] | 96 | } |
| 97 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 98 | /* |
| 99 | This structure contains results of exthdrs parsing |
| 100 | as offsets from skb->nh. |
| 101 | */ |
| 102 | |
| 103 | struct inet6_skb_parm { |
| 104 | int iif; |
YOSHIFUJI Hideaki / 吉藤英明 | dd3332b | 2013-01-13 05:02:45 +0000 | [diff] [blame] | 105 | __be16 ra; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 106 | __u16 dst0; |
| 107 | __u16 srcrt; |
| 108 | __u16 dst1; |
YOSHIFUJI Hideaki | 333fad5 | 2005-09-08 09:59:17 +0900 | [diff] [blame] | 109 | __u16 lastopt; |
David S. Miller | e7c3815 | 2010-07-19 22:01:26 -0700 | [diff] [blame] | 110 | __u16 nhoff; |
Patrick McHardy | 3e3850e | 2006-01-06 23:04:54 -0800 | [diff] [blame] | 111 | __u16 flags; |
Masahide NAKAMURA | 59fbb3a6 | 2007-06-26 23:56:32 -0700 | [diff] [blame] | 112 | #if defined(CONFIG_IPV6_MIP6) || defined(CONFIG_IPV6_MIP6_MODULE) |
David S. Miller | 8dd7368 | 2006-08-23 19:25:55 -0700 | [diff] [blame] | 113 | __u16 dsthao; |
| 114 | #endif |
Patrick McHardy | 4cdd3408 | 2012-08-26 19:13:58 +0200 | [diff] [blame] | 115 | __u16 frag_max_size; |
Patrick McHardy | 3e3850e | 2006-01-06 23:04:54 -0800 | [diff] [blame] | 116 | |
| 117 | #define IP6SKB_XFRM_TRANSFORMED 1 |
YOSHIFUJI Hideaki | 7bc570c | 2008-04-03 09:22:53 +0900 | [diff] [blame] | 118 | #define IP6SKB_FORWARDED 2 |
Jan Engelhardt | 9c6eb28 | 2010-04-13 15:32:16 +0200 | [diff] [blame] | 119 | #define IP6SKB_REROUTED 4 |
YOSHIFUJI Hideaki / 吉藤英明 | dd3332b | 2013-01-13 05:02:45 +0000 | [diff] [blame] | 120 | #define IP6SKB_ROUTERALERT 8 |
Hannes Frederic Sowa | f46078c | 2013-08-16 13:30:07 +0200 | [diff] [blame] | 121 | #define IP6SKB_FRAGMENTED 16 |
Florian Westphal | 8b58a39 | 2015-07-08 23:32:12 +0200 | [diff] [blame] | 122 | #define IP6SKB_HOPBYHOP 32 |
David Ahern | 74b2058 | 2016-05-10 11:19:50 -0700 | [diff] [blame] | 123 | #define IP6SKB_L3SLAVE 64 |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 124 | }; |
| 125 | |
David Ahern | 74b2058 | 2016-05-10 11:19:50 -0700 | [diff] [blame] | 126 | #if defined(CONFIG_NET_L3_MASTER_DEV) |
David Ahern | a04a480 | 2016-10-16 20:02:52 -0700 | [diff] [blame] | 127 | static inline bool ipv6_l3mdev_skb(__u16 flags) |
David Ahern | 74b2058 | 2016-05-10 11:19:50 -0700 | [diff] [blame] | 128 | { |
| 129 | return flags & IP6SKB_L3SLAVE; |
| 130 | } |
| 131 | #else |
David Ahern | a04a480 | 2016-10-16 20:02:52 -0700 | [diff] [blame] | 132 | static inline bool ipv6_l3mdev_skb(__u16 flags) |
David Ahern | 74b2058 | 2016-05-10 11:19:50 -0700 | [diff] [blame] | 133 | { |
| 134 | return false; |
| 135 | } |
| 136 | #endif |
| 137 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 138 | #define IP6CB(skb) ((struct inet6_skb_parm*)((skb)->cb)) |
Brian Haley | 4b340ae | 2010-04-23 11:26:09 +0000 | [diff] [blame] | 139 | #define IP6CBMTU(skb) ((struct ip6_mtuinfo *)((skb)->cb)) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 140 | |
Arnaldo Carvalho de Melo | 505cbfc | 2005-08-12 09:19:38 -0300 | [diff] [blame] | 141 | static inline int inet6_iif(const struct sk_buff *skb) |
| 142 | { |
David Ahern | a04a480 | 2016-10-16 20:02:52 -0700 | [diff] [blame] | 143 | bool l3_slave = ipv6_l3mdev_skb(IP6CB(skb)->flags); |
David Ahern | 74b2058 | 2016-05-10 11:19:50 -0700 | [diff] [blame] | 144 | |
| 145 | return l3_slave ? skb->skb_iif : IP6CB(skb)->iif; |
Arnaldo Carvalho de Melo | 505cbfc | 2005-08-12 09:19:38 -0300 | [diff] [blame] | 146 | } |
| 147 | |
David Ahern | a04a480 | 2016-10-16 20:02:52 -0700 | [diff] [blame] | 148 | /* can not be used in TCP layer after tcp_v6_fill_cb */ |
| 149 | static inline bool inet6_exact_dif_match(struct net *net, struct sk_buff *skb) |
| 150 | { |
| 151 | #if defined(CONFIG_NET_L3_MASTER_DEV) |
| 152 | if (!net->ipv4.sysctl_tcp_l3mdev_accept && |
David Ahern | da96786 | 2016-11-02 12:08:25 -0700 | [diff] [blame] | 153 | skb && ipv6_l3mdev_skb(IP6CB(skb)->flags)) |
David Ahern | a04a480 | 2016-10-16 20:02:52 -0700 | [diff] [blame] | 154 | return true; |
| 155 | #endif |
| 156 | return false; |
| 157 | } |
| 158 | |
Arnaldo Carvalho de Melo | ca304b6 | 2005-12-13 23:15:40 -0800 | [diff] [blame] | 159 | struct tcp6_request_sock { |
| 160 | struct tcp_request_sock tcp6rsk_tcp; |
Arnaldo Carvalho de Melo | ca304b6 | 2005-12-13 23:15:40 -0800 | [diff] [blame] | 161 | }; |
Arnaldo Carvalho de Melo | 2e6599c | 2005-06-18 22:46:52 -0700 | [diff] [blame] | 162 | |
Herbert Xu | 20283d8 | 2007-07-30 17:05:49 -0700 | [diff] [blame] | 163 | struct ipv6_mc_socklist; |
| 164 | struct ipv6_ac_socklist; |
| 165 | struct ipv6_fl_socklist; |
| 166 | |
Vlad Yasevich | 366e41d | 2015-01-31 10:40:13 -0500 | [diff] [blame] | 167 | struct inet6_cork { |
| 168 | struct ipv6_txoptions *opt; |
| 169 | u8 hop_limit; |
| 170 | u8 tclass; |
| 171 | }; |
| 172 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 173 | /** |
| 174 | * struct ipv6_pinfo - ipv6 private area |
| 175 | * |
| 176 | * In the struct sock hierarchy (tcp6_sock, upd6_sock, etc) |
| 177 | * this _must_ be the last member, so that inet6_sk_generic |
| 178 | * is able to calculate its offset from the base struct sock |
| 179 | * by using the struct proto->slab_obj_size member. -acme |
| 180 | */ |
| 181 | struct ipv6_pinfo { |
| 182 | struct in6_addr saddr; |
Yang Hongyang | b24a251 | 2008-12-16 02:06:23 -0800 | [diff] [blame] | 183 | struct in6_pktinfo sticky_pktinfo; |
Eric Dumazet | d3818c9 | 2012-07-17 21:38:04 +0000 | [diff] [blame] | 184 | const struct in6_addr *daddr_cache; |
YOSHIFUJI Hideaki | 8e1ef0a | 2006-08-29 17:15:09 -0700 | [diff] [blame] | 185 | #ifdef CONFIG_IPV6_SUBTREES |
Eric Dumazet | d3818c9 | 2012-07-17 21:38:04 +0000 | [diff] [blame] | 186 | const struct in6_addr *saddr_cache; |
YOSHIFUJI Hideaki | 8e1ef0a | 2006-08-29 17:15:09 -0700 | [diff] [blame] | 187 | #endif |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 188 | |
Al Viro | 90bcaf7 | 2006-11-08 00:25:17 -0800 | [diff] [blame] | 189 | __be32 flow_label; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 190 | __u32 frag_size; |
YOSHIFUJI Hideaki | 1d5d236 | 2008-03-10 10:56:55 -0400 | [diff] [blame] | 191 | |
| 192 | /* |
| 193 | * Packed in 16bits. |
| 194 | * Omit one shift by by putting the signed field at MSB. |
| 195 | */ |
| 196 | #if defined(__BIG_ENDIAN_BITFIELD) |
| 197 | __s16 hop_limit:9; |
| 198 | __u16 __unused_1:7; |
| 199 | #else |
| 200 | __u16 __unused_1:7; |
| 201 | __s16 hop_limit:9; |
| 202 | #endif |
| 203 | |
| 204 | #if defined(__BIG_ENDIAN_BITFIELD) |
| 205 | /* Packed in 16bits. */ |
| 206 | __s16 mcast_hops:9; |
| 207 | __u16 __unused_2:6, |
| 208 | mc_loop:1; |
| 209 | #else |
| 210 | __u16 mc_loop:1, |
| 211 | __unused_2:6; |
| 212 | __s16 mcast_hops:9; |
| 213 | #endif |
Erich E. Hoover | c4062df | 2012-02-08 09:11:08 +0000 | [diff] [blame] | 214 | int ucast_oif; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 215 | int mcast_oif; |
| 216 | |
| 217 | /* pktoption flags */ |
| 218 | union { |
| 219 | struct { |
YOSHIFUJI Hideaki | 4c75209 | 2007-05-23 13:28:48 +0900 | [diff] [blame] | 220 | __u16 srcrt:1, |
| 221 | osrcrt:1, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 222 | rxinfo:1, |
YOSHIFUJI Hideaki | 333fad5 | 2005-09-08 09:59:17 +0900 | [diff] [blame] | 223 | rxoinfo:1, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 224 | rxhlim:1, |
YOSHIFUJI Hideaki | 333fad5 | 2005-09-08 09:59:17 +0900 | [diff] [blame] | 225 | rxohlim:1, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 226 | hopopts:1, |
YOSHIFUJI Hideaki | 333fad5 | 2005-09-08 09:59:17 +0900 | [diff] [blame] | 227 | ohopopts:1, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 228 | dstopts:1, |
YOSHIFUJI Hideaki | 333fad5 | 2005-09-08 09:59:17 +0900 | [diff] [blame] | 229 | odstopts:1, |
YOSHIFUJI Hideaki | 41a1f8e | 2005-09-08 10:19:03 +0900 | [diff] [blame] | 230 | rxflow:1, |
Brian Haley | 793b147 | 2010-04-23 11:26:07 +0000 | [diff] [blame] | 231 | rxtclass:1, |
Balazs Scheidler | 6c46862 | 2010-10-21 16:08:28 +0200 | [diff] [blame] | 232 | rxpmtu:1, |
| 233 | rxorigdstaddr:1; |
| 234 | /* 2 bits hole */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 235 | } bits; |
YOSHIFUJI Hideaki | 333fad5 | 2005-09-08 09:59:17 +0900 | [diff] [blame] | 236 | __u16 all; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 237 | } rxopt; |
| 238 | |
| 239 | /* sockopt flags */ |
Brian Haley | 793b147 | 2010-04-23 11:26:07 +0000 | [diff] [blame] | 240 | __u16 recverr:1, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 241 | sndflow:1, |
Florent Fourcot | df3687f | 2014-01-17 17:15:03 +0100 | [diff] [blame] | 242 | repflow:1, |
Hannes Frederic Sowa | 93b36cf | 2013-12-15 03:41:14 +0100 | [diff] [blame] | 243 | pmtudisc:3, |
Eric Dumazet | 9fe516b | 2014-06-27 08:36:16 -0700 | [diff] [blame] | 244 | padding:1, /* 1 bit hole */ |
Brian Haley | 793b147 | 2010-04-23 11:26:07 +0000 | [diff] [blame] | 245 | srcprefs:3, /* 001: prefer temporary address |
YOSHIFUJI Hideaki | 7cbca67 | 2008-03-25 09:37:42 +0900 | [diff] [blame] | 246 | * 010: prefer public address |
| 247 | * 100: prefer care-of address |
| 248 | */ |
Tom Herbert | cb1ce2e | 2014-07-01 21:33:10 -0700 | [diff] [blame] | 249 | dontfrag:1, |
| 250 | autoflowlabel:1; |
Stephen Hemminger | e802af9 | 2010-04-22 15:24:53 -0700 | [diff] [blame] | 251 | __u8 min_hopcount; |
YOSHIFUJI Hideaki | 41a1f8e | 2005-09-08 10:19:03 +0900 | [diff] [blame] | 252 | __u8 tclass; |
Florent Fourcot | 1397ed3 | 2013-12-08 15:46:57 +0100 | [diff] [blame] | 253 | __be32 rcv_flowinfo; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 254 | |
| 255 | __u32 dst_cookie; |
Eric Dumazet | 5d299f3 | 2012-08-06 05:09:33 +0000 | [diff] [blame] | 256 | __u32 rx_dst_cookie; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 257 | |
Eric Dumazet | 456b61b | 2010-11-23 13:12:15 +0000 | [diff] [blame] | 258 | struct ipv6_mc_socklist __rcu *ipv6_mc_list; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 259 | struct ipv6_ac_socklist *ipv6_ac_list; |
YOSHIFUJI Hideaki / 吉藤英明 | 1836768 | 2013-01-30 09:27:52 +0000 | [diff] [blame] | 260 | struct ipv6_fl_socklist __rcu *ipv6_fl_list; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 261 | |
Eric Dumazet | 45f6fad | 2015-11-29 19:37:57 -0800 | [diff] [blame] | 262 | struct ipv6_txoptions __rcu *opt; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 263 | struct sk_buff *pktoptions; |
Brian Haley | 4b340ae | 2010-04-23 11:26:09 +0000 | [diff] [blame] | 264 | struct sk_buff *rxpmtu; |
Vlad Yasevich | 366e41d | 2015-01-31 10:40:13 -0500 | [diff] [blame] | 265 | struct inet6_cork cork; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 266 | }; |
| 267 | |
| 268 | /* WARNING: don't change the layout of the members in {raw,udp,tcp}6_sock! */ |
| 269 | struct raw6_sock { |
| 270 | /* inet_sock has to be the first member of raw6_sock */ |
| 271 | struct inet_sock inet; |
| 272 | __u32 checksum; /* perform checksum */ |
| 273 | __u32 offset; /* checksum offset */ |
| 274 | struct icmp6_filter filter; |
Patrick McHardy | d1db275 | 2010-05-11 14:40:55 +0200 | [diff] [blame] | 275 | __u32 ip6mr_table; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 276 | /* ipv6_pinfo has to be the last member of raw6_sock, see inet6_sk_generic */ |
| 277 | struct ipv6_pinfo inet6; |
| 278 | }; |
| 279 | |
| 280 | struct udp6_sock { |
| 281 | struct udp_sock udp; |
| 282 | /* ipv6_pinfo has to be the last member of udp6_sock, see inet6_sk_generic */ |
| 283 | struct ipv6_pinfo inet6; |
| 284 | }; |
| 285 | |
| 286 | struct tcp6_sock { |
| 287 | struct tcp_sock tcp; |
| 288 | /* ipv6_pinfo has to be the last member of tcp6_sock, see inet6_sk_generic */ |
| 289 | struct ipv6_pinfo inet6; |
| 290 | }; |
| 291 | |
Arnaldo Carvalho de Melo | b9750ce | 2005-12-13 23:22:54 -0800 | [diff] [blame] | 292 | extern int inet6_sk_rebuild_header(struct sock *sk); |
| 293 | |
David S. Miller | 48ee356 | 2012-07-11 02:39:24 -0700 | [diff] [blame] | 294 | struct tcp6_timewait_sock { |
| 295 | struct tcp_timewait_sock tcp6tw_tcp; |
David S. Miller | 48ee356 | 2012-07-11 02:39:24 -0700 | [diff] [blame] | 296 | }; |
| 297 | |
Eric Dumazet | dfd56b8 | 2011-12-10 09:48:31 +0000 | [diff] [blame] | 298 | #if IS_ENABLED(CONFIG_IPV6) |
David Ahern | e434863 | 2016-06-09 10:21:00 -0700 | [diff] [blame] | 299 | bool ipv6_mod_enabled(void); |
| 300 | |
Eric Dumazet | e7eadb4 | 2015-10-04 21:08:09 -0700 | [diff] [blame] | 301 | static inline struct ipv6_pinfo *inet6_sk(const struct sock *__sk) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 302 | { |
Eric Dumazet | e7eadb4 | 2015-10-04 21:08:09 -0700 | [diff] [blame] | 303 | return sk_fullsock(__sk) ? inet_sk(__sk)->pinet6 : NULL; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 304 | } |
| 305 | |
| 306 | static inline struct raw6_sock *raw6_sk(const struct sock *sk) |
| 307 | { |
| 308 | return (struct raw6_sock *)sk; |
| 309 | } |
| 310 | |
| 311 | static inline void inet_sk_copy_descendant(struct sock *sk_to, |
| 312 | const struct sock *sk_from) |
| 313 | { |
| 314 | int ancestor_size = sizeof(struct inet_sock); |
| 315 | |
| 316 | if (sk_from->sk_family == PF_INET6) |
| 317 | ancestor_size += sizeof(struct ipv6_pinfo); |
| 318 | |
| 319 | __inet_sk_copy_descendant(sk_to, sk_from, ancestor_size); |
| 320 | } |
| 321 | |
Eric Dumazet | 9fe516b | 2014-06-27 08:36:16 -0700 | [diff] [blame] | 322 | #define __ipv6_only_sock(sk) (sk->sk_ipv6only) |
| 323 | #define ipv6_only_sock(sk) (__ipv6_only_sock(sk)) |
Hannes Frederic Sowa | 4b261c7 | 2014-01-20 03:43:08 +0100 | [diff] [blame] | 324 | #define ipv6_sk_rxinfo(sk) ((sk)->sk_family == PF_INET6 && \ |
| 325 | inet6_sk(sk)->rxopt.bits.rxinfo) |
Arnaldo Carvalho de Melo | 8feaf0c0 | 2005-08-09 20:09:30 -0700 | [diff] [blame] | 326 | |
Eric Dumazet | efe4208 | 2013-10-03 15:42:29 -0700 | [diff] [blame] | 327 | static inline const struct in6_addr *inet6_rcv_saddr(const struct sock *sk) |
Arnaldo Carvalho de Melo | 8feaf0c0 | 2005-08-09 20:09:30 -0700 | [diff] [blame] | 328 | { |
Eric Dumazet | efe4208 | 2013-10-03 15:42:29 -0700 | [diff] [blame] | 329 | if (sk->sk_family == AF_INET6) |
| 330 | return &sk->sk_v6_rcv_saddr; |
| 331 | return NULL; |
Arnaldo Carvalho de Melo | 8feaf0c0 | 2005-08-09 20:09:30 -0700 | [diff] [blame] | 332 | } |
| 333 | |
Arnaldo Carvalho de Melo | 463c84b | 2005-08-09 20:10:42 -0700 | [diff] [blame] | 334 | static inline int inet_v6_ipv6only(const struct sock *sk) |
Arnaldo Carvalho de Melo | 8feaf0c0 | 2005-08-09 20:09:30 -0700 | [diff] [blame] | 335 | { |
Eric Dumazet | 9fe516b | 2014-06-27 08:36:16 -0700 | [diff] [blame] | 336 | /* ipv6only field is at same position for timewait and other sockets */ |
| 337 | return ipv6_only_sock(sk); |
Arnaldo Carvalho de Melo | 8feaf0c0 | 2005-08-09 20:09:30 -0700 | [diff] [blame] | 338 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 339 | #else |
| 340 | #define __ipv6_only_sock(sk) 0 |
| 341 | #define ipv6_only_sock(sk) 0 |
Hannes Frederic Sowa | 4b261c7 | 2014-01-20 03:43:08 +0100 | [diff] [blame] | 342 | #define ipv6_sk_rxinfo(sk) 0 |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 343 | |
David Ahern | e434863 | 2016-06-09 10:21:00 -0700 | [diff] [blame] | 344 | static inline bool ipv6_mod_enabled(void) |
| 345 | { |
| 346 | return false; |
| 347 | } |
| 348 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 349 | static inline struct ipv6_pinfo * inet6_sk(const struct sock *__sk) |
| 350 | { |
| 351 | return NULL; |
| 352 | } |
| 353 | |
Arnaldo Carvalho de Melo | ca304b6 | 2005-12-13 23:15:40 -0800 | [diff] [blame] | 354 | static inline struct inet6_request_sock * |
| 355 | inet6_rsk(const struct request_sock *rsk) |
| 356 | { |
| 357 | return NULL; |
| 358 | } |
| 359 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 360 | static inline struct raw6_sock *raw6_sk(const struct sock *sk) |
| 361 | { |
| 362 | return NULL; |
| 363 | } |
| 364 | |
Arnaldo Carvalho de Melo | 0fa1a53 | 2005-12-13 23:23:09 -0800 | [diff] [blame] | 365 | #define inet6_rcv_saddr(__sk) NULL |
Arnaldo Carvalho de Melo | 8feaf0c0 | 2005-08-09 20:09:30 -0700 | [diff] [blame] | 366 | #define tcp_twsk_ipv6only(__sk) 0 |
Arnaldo Carvalho de Melo | 463c84b | 2005-08-09 20:10:42 -0700 | [diff] [blame] | 367 | #define inet_v6_ipv6only(__sk) 0 |
Eric Dumazet | dfd56b8 | 2011-12-10 09:48:31 +0000 | [diff] [blame] | 368 | #endif /* IS_ENABLED(CONFIG_IPV6) */ |
Arnaldo Carvalho de Melo | 8feaf0c0 | 2005-08-09 20:09:30 -0700 | [diff] [blame] | 369 | #endif /* _IPV6_H */ |