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) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 7 | /* |
| 8 | * This structure contains configuration options per IPv6 link. |
| 9 | */ |
| 10 | struct ipv6_devconf { |
| 11 | __s32 forwarding; |
| 12 | __s32 hop_limit; |
| 13 | __s32 mtu6; |
| 14 | __s32 accept_ra; |
| 15 | __s32 accept_redirects; |
| 16 | __s32 autoconf; |
| 17 | __s32 dad_transmits; |
| 18 | __s32 rtr_solicits; |
| 19 | __s32 rtr_solicit_interval; |
| 20 | __s32 rtr_solicit_delay; |
| 21 | __s32 force_mld_version; |
| 22 | #ifdef CONFIG_IPV6_PRIVACY |
| 23 | __s32 use_tempaddr; |
| 24 | __s32 temp_valid_lft; |
| 25 | __s32 temp_prefered_lft; |
| 26 | __s32 regen_max_retry; |
| 27 | __s32 max_desync_factor; |
| 28 | #endif |
| 29 | __s32 max_addresses; |
YOSHIFUJI Hideaki | 65f5c7c | 2006-03-20 16:55:08 -0800 | [diff] [blame] | 30 | __s32 accept_ra_defrtr; |
YOSHIFUJI Hideaki | c4fd30e | 2006-03-20 16:55:26 -0800 | [diff] [blame] | 31 | __s32 accept_ra_pinfo; |
YOSHIFUJI Hideaki | 930d6ff | 2006-03-20 17:05:30 -0800 | [diff] [blame] | 32 | #ifdef CONFIG_IPV6_ROUTER_PREF |
| 33 | __s32 accept_ra_rtr_pref; |
YOSHIFUJI Hideaki | 52e1635 | 2006-03-20 17:05:47 -0800 | [diff] [blame] | 34 | __s32 rtr_probe_interval; |
YOSHIFUJI Hideaki | 09c884d | 2006-03-20 17:07:03 -0800 | [diff] [blame] | 35 | #ifdef CONFIG_IPV6_ROUTE_INFO |
| 36 | __s32 accept_ra_rt_info_max_plen; |
| 37 | #endif |
YOSHIFUJI Hideaki | 930d6ff | 2006-03-20 17:05:30 -0800 | [diff] [blame] | 38 | #endif |
YOSHIFUJI Hideaki | fbea49e | 2006-09-22 14:43:49 -0700 | [diff] [blame] | 39 | __s32 proxy_ndp; |
YOSHIFUJI Hideaki | 0bcbc92 | 2007-04-24 14:58:30 -0700 | [diff] [blame] | 40 | __s32 accept_source_route; |
Neil Horman | 95c385b | 2007-04-25 17:08:10 -0700 | [diff] [blame] | 41 | #ifdef CONFIG_IPV6_OPTIMISTIC_DAD |
| 42 | __s32 optimistic_dad; |
| 43 | #endif |
YOSHIFUJI Hideaki | 7bc570c | 2008-04-03 09:22:53 +0900 | [diff] [blame] | 44 | #ifdef CONFIG_IPV6_MROUTE |
| 45 | __s32 mc_forwarding; |
| 46 | #endif |
YOSHIFUJI Hideaki | 778d80b | 2008-06-28 14:17:11 +0900 | [diff] [blame] | 47 | __s32 disable_ipv6; |
YOSHIFUJI Hideaki | 1b34be7 | 2008-06-28 14:18:38 +0900 | [diff] [blame] | 48 | __s32 accept_dad; |
Octavian Purdila | f7734fd | 2009-10-02 11:39:15 +0000 | [diff] [blame] | 49 | __s32 force_tllao; |
Hannes Frederic Sowa | 5cb0443 | 2012-11-06 16:46:20 +0000 | [diff] [blame] | 50 | __s32 ndisc_notify; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 51 | void *sysctl; |
| 52 | }; |
Brian Haley | 56d417b | 2009-06-01 03:07:33 -0700 | [diff] [blame] | 53 | |
| 54 | struct ipv6_params { |
| 55 | __s32 disable_ipv6; |
| 56 | __s32 autoconf; |
| 57 | }; |
| 58 | extern struct ipv6_params ipv6_defaults; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 59 | #include <linux/icmpv6.h> |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 60 | #include <linux/tcp.h> |
| 61 | #include <linux/udp.h> |
| 62 | |
Arnaldo Carvalho de Melo | 14c8502 | 2005-12-27 02:43:12 -0200 | [diff] [blame] | 63 | #include <net/inet_sock.h> |
| 64 | |
Arnaldo Carvalho de Melo | 0660e03 | 2007-04-25 17:54:47 -0700 | [diff] [blame] | 65 | static inline struct ipv6hdr *ipv6_hdr(const struct sk_buff *skb) |
| 66 | { |
| 67 | return (struct ipv6hdr *)skb_network_header(skb); |
| 68 | } |
| 69 | |
Joseph Gasparakis | 6a674e9 | 2012-12-07 14:14:14 +0000 | [diff] [blame] | 70 | static inline struct ipv6hdr *inner_ipv6_hdr(const struct sk_buff *skb) |
| 71 | { |
| 72 | return (struct ipv6hdr *)skb_inner_network_header(skb); |
| 73 | } |
| 74 | |
Arnaldo Carvalho de Melo | 39b8916 | 2007-04-10 21:06:25 -0700 | [diff] [blame] | 75 | static inline struct ipv6hdr *ipipv6_hdr(const struct sk_buff *skb) |
| 76 | { |
Arnaldo Carvalho de Melo | 9c70220 | 2007-04-25 18:04:18 -0700 | [diff] [blame] | 77 | return (struct ipv6hdr *)skb_transport_header(skb); |
Arnaldo Carvalho de Melo | 39b8916 | 2007-04-10 21:06:25 -0700 | [diff] [blame] | 78 | } |
| 79 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 80 | /* |
| 81 | This structure contains results of exthdrs parsing |
| 82 | as offsets from skb->nh. |
| 83 | */ |
| 84 | |
| 85 | struct inet6_skb_parm { |
| 86 | int iif; |
YOSHIFUJI Hideaki / 吉藤英明 | dd3332b | 2013-01-13 05:02:45 +0000 | [diff] [blame] | 87 | __be16 ra; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 88 | __u16 hop; |
| 89 | __u16 dst0; |
| 90 | __u16 srcrt; |
| 91 | __u16 dst1; |
YOSHIFUJI Hideaki | 333fad5 | 2005-09-08 09:59:17 +0900 | [diff] [blame] | 92 | __u16 lastopt; |
David S. Miller | e7c3815 | 2010-07-19 22:01:26 -0700 | [diff] [blame] | 93 | __u16 nhoff; |
Patrick McHardy | 3e3850e | 2006-01-06 23:04:54 -0800 | [diff] [blame] | 94 | __u16 flags; |
Masahide NAKAMURA | 59fbb3a6 | 2007-06-26 23:56:32 -0700 | [diff] [blame] | 95 | #if defined(CONFIG_IPV6_MIP6) || defined(CONFIG_IPV6_MIP6_MODULE) |
David S. Miller | 8dd7368 | 2006-08-23 19:25:55 -0700 | [diff] [blame] | 96 | __u16 dsthao; |
| 97 | #endif |
Patrick McHardy | 4cdd3408 | 2012-08-26 19:13:58 +0200 | [diff] [blame] | 98 | __u16 frag_max_size; |
Patrick McHardy | 3e3850e | 2006-01-06 23:04:54 -0800 | [diff] [blame] | 99 | |
| 100 | #define IP6SKB_XFRM_TRANSFORMED 1 |
YOSHIFUJI Hideaki | 7bc570c | 2008-04-03 09:22:53 +0900 | [diff] [blame] | 101 | #define IP6SKB_FORWARDED 2 |
Jan Engelhardt | 9c6eb28 | 2010-04-13 15:32:16 +0200 | [diff] [blame] | 102 | #define IP6SKB_REROUTED 4 |
YOSHIFUJI Hideaki / 吉藤英明 | dd3332b | 2013-01-13 05:02:45 +0000 | [diff] [blame] | 103 | #define IP6SKB_ROUTERALERT 8 |
Hannes Frederic Sowa | f46078c | 2013-08-16 13:30:07 +0200 | [diff] [blame] | 104 | #define IP6SKB_FRAGMENTED 16 |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 105 | }; |
| 106 | |
| 107 | #define IP6CB(skb) ((struct inet6_skb_parm*)((skb)->cb)) |
Brian Haley | 4b340ae | 2010-04-23 11:26:09 +0000 | [diff] [blame] | 108 | #define IP6CBMTU(skb) ((struct ip6_mtuinfo *)((skb)->cb)) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 109 | |
Arnaldo Carvalho de Melo | 505cbfc | 2005-08-12 09:19:38 -0300 | [diff] [blame] | 110 | static inline int inet6_iif(const struct sk_buff *skb) |
| 111 | { |
| 112 | return IP6CB(skb)->iif; |
| 113 | } |
| 114 | |
Arnaldo Carvalho de Melo | ca304b6 | 2005-12-13 23:15:40 -0800 | [diff] [blame] | 115 | struct inet6_request_sock { |
Arnaldo Carvalho de Melo | 2e6599c | 2005-06-18 22:46:52 -0700 | [diff] [blame] | 116 | struct in6_addr loc_addr; |
| 117 | struct in6_addr rmt_addr; |
| 118 | struct sk_buff *pktopts; |
| 119 | int iif; |
| 120 | }; |
| 121 | |
Arnaldo Carvalho de Melo | ca304b6 | 2005-12-13 23:15:40 -0800 | [diff] [blame] | 122 | struct tcp6_request_sock { |
| 123 | struct tcp_request_sock tcp6rsk_tcp; |
| 124 | struct inet6_request_sock tcp6rsk_inet6; |
| 125 | }; |
Arnaldo Carvalho de Melo | 2e6599c | 2005-06-18 22:46:52 -0700 | [diff] [blame] | 126 | |
Herbert Xu | 20283d8 | 2007-07-30 17:05:49 -0700 | [diff] [blame] | 127 | struct ipv6_mc_socklist; |
| 128 | struct ipv6_ac_socklist; |
| 129 | struct ipv6_fl_socklist; |
| 130 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 131 | /** |
| 132 | * struct ipv6_pinfo - ipv6 private area |
| 133 | * |
| 134 | * In the struct sock hierarchy (tcp6_sock, upd6_sock, etc) |
| 135 | * this _must_ be the last member, so that inet6_sk_generic |
| 136 | * is able to calculate its offset from the base struct sock |
| 137 | * by using the struct proto->slab_obj_size member. -acme |
| 138 | */ |
| 139 | struct ipv6_pinfo { |
| 140 | struct in6_addr saddr; |
| 141 | struct in6_addr rcv_saddr; |
| 142 | struct in6_addr daddr; |
Yang Hongyang | b24a251 | 2008-12-16 02:06:23 -0800 | [diff] [blame] | 143 | struct in6_pktinfo sticky_pktinfo; |
Eric Dumazet | d3818c9 | 2012-07-17 21:38:04 +0000 | [diff] [blame] | 144 | const struct in6_addr *daddr_cache; |
YOSHIFUJI Hideaki | 8e1ef0a | 2006-08-29 17:15:09 -0700 | [diff] [blame] | 145 | #ifdef CONFIG_IPV6_SUBTREES |
Eric Dumazet | d3818c9 | 2012-07-17 21:38:04 +0000 | [diff] [blame] | 146 | const struct in6_addr *saddr_cache; |
YOSHIFUJI Hideaki | 8e1ef0a | 2006-08-29 17:15:09 -0700 | [diff] [blame] | 147 | #endif |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 148 | |
Al Viro | 90bcaf7 | 2006-11-08 00:25:17 -0800 | [diff] [blame] | 149 | __be32 flow_label; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 150 | __u32 frag_size; |
YOSHIFUJI Hideaki | 1d5d236 | 2008-03-10 10:56:55 -0400 | [diff] [blame] | 151 | |
| 152 | /* |
| 153 | * Packed in 16bits. |
| 154 | * Omit one shift by by putting the signed field at MSB. |
| 155 | */ |
| 156 | #if defined(__BIG_ENDIAN_BITFIELD) |
| 157 | __s16 hop_limit:9; |
| 158 | __u16 __unused_1:7; |
| 159 | #else |
| 160 | __u16 __unused_1:7; |
| 161 | __s16 hop_limit:9; |
| 162 | #endif |
| 163 | |
| 164 | #if defined(__BIG_ENDIAN_BITFIELD) |
| 165 | /* Packed in 16bits. */ |
| 166 | __s16 mcast_hops:9; |
| 167 | __u16 __unused_2:6, |
| 168 | mc_loop:1; |
| 169 | #else |
| 170 | __u16 mc_loop:1, |
| 171 | __unused_2:6; |
| 172 | __s16 mcast_hops:9; |
| 173 | #endif |
Erich E. Hoover | c4062df | 2012-02-08 09:11:08 +0000 | [diff] [blame] | 174 | int ucast_oif; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 175 | int mcast_oif; |
| 176 | |
| 177 | /* pktoption flags */ |
| 178 | union { |
| 179 | struct { |
YOSHIFUJI Hideaki | 4c75209 | 2007-05-23 13:28:48 +0900 | [diff] [blame] | 180 | __u16 srcrt:1, |
| 181 | osrcrt:1, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 182 | rxinfo:1, |
YOSHIFUJI Hideaki | 333fad5 | 2005-09-08 09:59:17 +0900 | [diff] [blame] | 183 | rxoinfo:1, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 184 | rxhlim:1, |
YOSHIFUJI Hideaki | 333fad5 | 2005-09-08 09:59:17 +0900 | [diff] [blame] | 185 | rxohlim:1, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 186 | hopopts:1, |
YOSHIFUJI Hideaki | 333fad5 | 2005-09-08 09:59:17 +0900 | [diff] [blame] | 187 | ohopopts:1, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 188 | dstopts:1, |
YOSHIFUJI Hideaki | 333fad5 | 2005-09-08 09:59:17 +0900 | [diff] [blame] | 189 | odstopts:1, |
YOSHIFUJI Hideaki | 41a1f8e | 2005-09-08 10:19:03 +0900 | [diff] [blame] | 190 | rxflow:1, |
Brian Haley | 793b147 | 2010-04-23 11:26:07 +0000 | [diff] [blame] | 191 | rxtclass:1, |
Balazs Scheidler | 6c46862 | 2010-10-21 16:08:28 +0200 | [diff] [blame] | 192 | rxpmtu:1, |
| 193 | rxorigdstaddr:1; |
| 194 | /* 2 bits hole */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 195 | } bits; |
YOSHIFUJI Hideaki | 333fad5 | 2005-09-08 09:59:17 +0900 | [diff] [blame] | 196 | __u16 all; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 197 | } rxopt; |
| 198 | |
| 199 | /* sockopt flags */ |
Brian Haley | 793b147 | 2010-04-23 11:26:07 +0000 | [diff] [blame] | 200 | __u16 recverr:1, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 201 | sndflow:1, |
| 202 | pmtudisc:2, |
YOSHIFUJI Hideaki | 7cbca67 | 2008-03-25 09:37:42 +0900 | [diff] [blame] | 203 | ipv6only:1, |
Brian Haley | 793b147 | 2010-04-23 11:26:07 +0000 | [diff] [blame] | 204 | srcprefs:3, /* 001: prefer temporary address |
YOSHIFUJI Hideaki | 7cbca67 | 2008-03-25 09:37:42 +0900 | [diff] [blame] | 205 | * 010: prefer public address |
| 206 | * 100: prefer care-of address |
| 207 | */ |
Brian Haley | 793b147 | 2010-04-23 11:26:07 +0000 | [diff] [blame] | 208 | dontfrag:1; |
Stephen Hemminger | e802af9 | 2010-04-22 15:24:53 -0700 | [diff] [blame] | 209 | __u8 min_hopcount; |
YOSHIFUJI Hideaki | 41a1f8e | 2005-09-08 10:19:03 +0900 | [diff] [blame] | 210 | __u8 tclass; |
Jiri Benc | 4c507d2 | 2012-02-09 09:35:49 +0000 | [diff] [blame] | 211 | __u8 rcv_tclass; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 212 | |
| 213 | __u32 dst_cookie; |
Eric Dumazet | 5d299f3 | 2012-08-06 05:09:33 +0000 | [diff] [blame] | 214 | __u32 rx_dst_cookie; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 215 | |
Eric Dumazet | 456b61b | 2010-11-23 13:12:15 +0000 | [diff] [blame] | 216 | struct ipv6_mc_socklist __rcu *ipv6_mc_list; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 217 | struct ipv6_ac_socklist *ipv6_ac_list; |
YOSHIFUJI Hideaki / 吉藤英明 | 1836768 | 2013-01-30 09:27:52 +0000 | [diff] [blame] | 218 | struct ipv6_fl_socklist __rcu *ipv6_fl_list; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 219 | |
| 220 | struct ipv6_txoptions *opt; |
| 221 | struct sk_buff *pktoptions; |
Brian Haley | 4b340ae | 2010-04-23 11:26:09 +0000 | [diff] [blame] | 222 | struct sk_buff *rxpmtu; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 223 | struct { |
| 224 | struct ipv6_txoptions *opt; |
YOSHIFUJI Hideaki | 4725474 | 2008-03-10 04:41:33 -0400 | [diff] [blame] | 225 | u8 hop_limit; |
| 226 | u8 tclass; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 227 | } cork; |
| 228 | }; |
| 229 | |
| 230 | /* WARNING: don't change the layout of the members in {raw,udp,tcp}6_sock! */ |
| 231 | struct raw6_sock { |
| 232 | /* inet_sock has to be the first member of raw6_sock */ |
| 233 | struct inet_sock inet; |
| 234 | __u32 checksum; /* perform checksum */ |
| 235 | __u32 offset; /* checksum offset */ |
| 236 | struct icmp6_filter filter; |
Patrick McHardy | d1db275 | 2010-05-11 14:40:55 +0200 | [diff] [blame] | 237 | __u32 ip6mr_table; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 238 | /* ipv6_pinfo has to be the last member of raw6_sock, see inet6_sk_generic */ |
| 239 | struct ipv6_pinfo inet6; |
| 240 | }; |
| 241 | |
| 242 | struct udp6_sock { |
| 243 | struct udp_sock udp; |
| 244 | /* ipv6_pinfo has to be the last member of udp6_sock, see inet6_sk_generic */ |
| 245 | struct ipv6_pinfo inet6; |
| 246 | }; |
| 247 | |
| 248 | struct tcp6_sock { |
| 249 | struct tcp_sock tcp; |
| 250 | /* ipv6_pinfo has to be the last member of tcp6_sock, see inet6_sk_generic */ |
| 251 | struct ipv6_pinfo inet6; |
| 252 | }; |
| 253 | |
Arnaldo Carvalho de Melo | b9750ce | 2005-12-13 23:22:54 -0800 | [diff] [blame] | 254 | extern int inet6_sk_rebuild_header(struct sock *sk); |
| 255 | |
David S. Miller | 48ee356 | 2012-07-11 02:39:24 -0700 | [diff] [blame] | 256 | struct inet6_timewait_sock { |
| 257 | struct in6_addr tw_v6_daddr; |
| 258 | struct in6_addr tw_v6_rcv_saddr; |
| 259 | }; |
| 260 | |
| 261 | struct tcp6_timewait_sock { |
| 262 | struct tcp_timewait_sock tcp6tw_tcp; |
| 263 | struct inet6_timewait_sock tcp6tw_inet6; |
| 264 | }; |
| 265 | |
| 266 | static inline struct inet6_timewait_sock *inet6_twsk(const struct sock *sk) |
| 267 | { |
| 268 | return (struct inet6_timewait_sock *)(((u8 *)sk) + |
| 269 | inet_twsk(sk)->tw_ipv6_offset); |
| 270 | } |
| 271 | |
Eric Dumazet | dfd56b8 | 2011-12-10 09:48:31 +0000 | [diff] [blame] | 272 | #if IS_ENABLED(CONFIG_IPV6) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 273 | static inline struct ipv6_pinfo * inet6_sk(const struct sock *__sk) |
| 274 | { |
| 275 | return inet_sk(__sk)->pinet6; |
| 276 | } |
| 277 | |
Arnaldo Carvalho de Melo | ca304b6 | 2005-12-13 23:15:40 -0800 | [diff] [blame] | 278 | static inline struct inet6_request_sock * |
| 279 | inet6_rsk(const struct request_sock *rsk) |
| 280 | { |
| 281 | return (struct inet6_request_sock *)(((u8 *)rsk) + |
| 282 | inet_rsk(rsk)->inet6_rsk_offset); |
| 283 | } |
| 284 | |
| 285 | static inline u32 inet6_rsk_offset(struct request_sock *rsk) |
| 286 | { |
| 287 | return rsk->rsk_ops->obj_size - sizeof(struct inet6_request_sock); |
| 288 | } |
| 289 | |
| 290 | static inline struct request_sock *inet6_reqsk_alloc(struct request_sock_ops *ops) |
| 291 | { |
| 292 | struct request_sock *req = reqsk_alloc(ops); |
| 293 | |
Arnaldo Carvalho de Melo | ce4a7d0 | 2008-06-10 12:39:35 -0700 | [diff] [blame] | 294 | if (req != NULL) { |
Arnaldo Carvalho de Melo | ca304b6 | 2005-12-13 23:15:40 -0800 | [diff] [blame] | 295 | inet_rsk(req)->inet6_rsk_offset = inet6_rsk_offset(req); |
Arnaldo Carvalho de Melo | ce4a7d0 | 2008-06-10 12:39:35 -0700 | [diff] [blame] | 296 | inet6_rsk(req)->pktopts = NULL; |
| 297 | } |
Arnaldo Carvalho de Melo | ca304b6 | 2005-12-13 23:15:40 -0800 | [diff] [blame] | 298 | |
| 299 | return req; |
| 300 | } |
| 301 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 302 | static inline struct raw6_sock *raw6_sk(const struct sock *sk) |
| 303 | { |
| 304 | return (struct raw6_sock *)sk; |
| 305 | } |
| 306 | |
| 307 | static inline void inet_sk_copy_descendant(struct sock *sk_to, |
| 308 | const struct sock *sk_from) |
| 309 | { |
| 310 | int ancestor_size = sizeof(struct inet_sock); |
| 311 | |
| 312 | if (sk_from->sk_family == PF_INET6) |
| 313 | ancestor_size += sizeof(struct ipv6_pinfo); |
| 314 | |
| 315 | __inet_sk_copy_descendant(sk_to, sk_from, ancestor_size); |
| 316 | } |
| 317 | |
| 318 | #define __ipv6_only_sock(sk) (inet6_sk(sk)->ipv6only) |
| 319 | #define ipv6_only_sock(sk) ((sk)->sk_family == PF_INET6 && __ipv6_only_sock(sk)) |
Arnaldo Carvalho de Melo | 8feaf0c0 | 2005-08-09 20:09:30 -0700 | [diff] [blame] | 320 | |
Arnaldo Carvalho de Melo | 0fa1a53 | 2005-12-13 23:23:09 -0800 | [diff] [blame] | 321 | static inline u16 inet6_tw_offset(const struct proto *prot) |
Arnaldo Carvalho de Melo | 8feaf0c0 | 2005-08-09 20:09:30 -0700 | [diff] [blame] | 322 | { |
Arnaldo Carvalho de Melo | 6d6ee43 | 2005-12-13 23:25:19 -0800 | [diff] [blame] | 323 | return prot->twsk_prot->twsk_obj_size - |
| 324 | sizeof(struct inet6_timewait_sock); |
Arnaldo Carvalho de Melo | 8feaf0c0 | 2005-08-09 20:09:30 -0700 | [diff] [blame] | 325 | } |
| 326 | |
Arnaldo Carvalho de Melo | 0fa1a53 | 2005-12-13 23:23:09 -0800 | [diff] [blame] | 327 | static inline 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 | { |
| 329 | return likely(sk->sk_state != TCP_TIME_WAIT) ? |
Arnaldo Carvalho de Melo | 0fa1a53 | 2005-12-13 23:23:09 -0800 | [diff] [blame] | 330 | &inet6_sk(sk)->rcv_saddr : &inet6_twsk(sk)->tw_v6_rcv_saddr; |
Arnaldo Carvalho de Melo | 8feaf0c0 | 2005-08-09 20:09:30 -0700 | [diff] [blame] | 331 | } |
| 332 | |
Arnaldo Carvalho de Melo | 0fa1a53 | 2005-12-13 23:23:09 -0800 | [diff] [blame] | 333 | static inline struct in6_addr *inet6_rcv_saddr(const struct sock *sk) |
Arnaldo Carvalho de Melo | 8feaf0c0 | 2005-08-09 20:09:30 -0700 | [diff] [blame] | 334 | { |
Arnaldo Carvalho de Melo | 0fa1a53 | 2005-12-13 23:23:09 -0800 | [diff] [blame] | 335 | return sk->sk_family == AF_INET6 ? __inet6_rcv_saddr(sk) : NULL; |
Arnaldo Carvalho de Melo | 8feaf0c0 | 2005-08-09 20:09:30 -0700 | [diff] [blame] | 336 | } |
| 337 | |
Arnaldo Carvalho de Melo | 463c84b | 2005-08-09 20:10:42 -0700 | [diff] [blame] | 338 | static inline int inet_v6_ipv6only(const struct sock *sk) |
Arnaldo Carvalho de Melo | 8feaf0c0 | 2005-08-09 20:09:30 -0700 | [diff] [blame] | 339 | { |
| 340 | return likely(sk->sk_state != TCP_TIME_WAIT) ? |
Arnaldo Carvalho de Melo | 3f421ba | 2005-08-09 20:11:08 -0700 | [diff] [blame] | 341 | ipv6_only_sock(sk) : inet_twsk(sk)->tw_ipv6only; |
Arnaldo Carvalho de Melo | 8feaf0c0 | 2005-08-09 20:09:30 -0700 | [diff] [blame] | 342 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 343 | #else |
| 344 | #define __ipv6_only_sock(sk) 0 |
| 345 | #define ipv6_only_sock(sk) 0 |
| 346 | |
| 347 | static inline struct ipv6_pinfo * inet6_sk(const struct sock *__sk) |
| 348 | { |
| 349 | return NULL; |
| 350 | } |
| 351 | |
Arnaldo Carvalho de Melo | ca304b6 | 2005-12-13 23:15:40 -0800 | [diff] [blame] | 352 | static inline struct inet6_request_sock * |
| 353 | inet6_rsk(const struct request_sock *rsk) |
| 354 | { |
| 355 | return NULL; |
| 356 | } |
| 357 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 358 | static inline struct raw6_sock *raw6_sk(const struct sock *sk) |
| 359 | { |
| 360 | return NULL; |
| 361 | } |
| 362 | |
Arnaldo Carvalho de Melo | 0fa1a53 | 2005-12-13 23:23:09 -0800 | [diff] [blame] | 363 | #define __inet6_rcv_saddr(__sk) NULL |
| 364 | #define inet6_rcv_saddr(__sk) NULL |
Arnaldo Carvalho de Melo | 8feaf0c0 | 2005-08-09 20:09:30 -0700 | [diff] [blame] | 365 | #define tcp_twsk_ipv6only(__sk) 0 |
Arnaldo Carvalho de Melo | 463c84b | 2005-08-09 20:10:42 -0700 | [diff] [blame] | 366 | #define inet_v6_ipv6only(__sk) 0 |
Eric Dumazet | dfd56b8 | 2011-12-10 09:48:31 +0000 | [diff] [blame] | 367 | #endif /* IS_ENABLED(CONFIG_IPV6) */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 368 | |
Eric Dumazet | ce43b03 | 2012-11-30 09:49:27 +0000 | [diff] [blame] | 369 | #define INET6_MATCH(__sk, __net, __saddr, __daddr, __ports, __dif) \ |
| 370 | ((inet_sk(__sk)->inet_portpair == (__ports)) && \ |
| 371 | ((__sk)->sk_family == AF_INET6) && \ |
| 372 | ipv6_addr_equal(&inet6_sk(__sk)->daddr, (__saddr)) && \ |
| 373 | ipv6_addr_equal(&inet6_sk(__sk)->rcv_saddr, (__daddr)) && \ |
| 374 | (!(__sk)->sk_bound_dev_if || \ |
| 375 | ((__sk)->sk_bound_dev_if == (__dif))) && \ |
| 376 | net_eq(sock_net(__sk), (__net))) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 377 | |
Eric Dumazet | ce43b03 | 2012-11-30 09:49:27 +0000 | [diff] [blame] | 378 | #define INET6_TW_MATCH(__sk, __net, __saddr, __daddr, __ports, __dif) \ |
| 379 | ((inet_twsk(__sk)->tw_portpair == (__ports)) && \ |
| 380 | ((__sk)->sk_family == AF_INET6) && \ |
| 381 | ipv6_addr_equal(&inet6_twsk(__sk)->tw_v6_daddr, (__saddr)) && \ |
| 382 | ipv6_addr_equal(&inet6_twsk(__sk)->tw_v6_rcv_saddr, (__daddr)) && \ |
| 383 | (!(__sk)->sk_bound_dev_if || \ |
| 384 | ((__sk)->sk_bound_dev_if == (__dif))) && \ |
| 385 | net_eq(sock_net(__sk), (__net))) |
Pavel Emelyanov | 535174e | 2008-01-31 05:03:27 -0800 | [diff] [blame] | 386 | |
Arnaldo Carvalho de Melo | 8feaf0c0 | 2005-08-09 20:09:30 -0700 | [diff] [blame] | 387 | #endif /* _IPV6_H */ |