4 #include <linux/config.h>
6 #include <asm/byteorder.h>
8 /* The latest drafts declared increase in minimal mtu up to 1280. */
10 #define IPV6_MIN_MTU 1280
14 * source interface/address selection, source routing, etc...
15 * *under construction*
20 struct in6_addr ipi6_addr;
26 struct in6_addr ifr6_addr;
31 #define IPV6_SRCRT_STRICT 0x01 /* this hop must be a neighbor */
32 #define IPV6_SRCRT_TYPE_0 0 /* IPv6 type 0 Routing Header */
45 * variable length field
54 * TLV encoded option data follows.
58 #define ipv6_destopt_hdr ipv6_opt_hdr
59 #define ipv6_hopopt_hdr ipv6_opt_hdr
62 #define ipv6_optlen(p) (((p)->hdrlen+1) << 3)
66 * routing header type 0 (used in cmsghdr struct)
70 struct ipv6_rt_hdr rt_hdr;
71 __u32 bitmap; /* strict/loose bit map */
72 struct in6_addr addr[0];
74 #define rt0_type rt_hdr.type
77 struct ipv6_auth_hdr {
79 __u8 hdrlen; /* This one is measured in 32 bit units! */
82 __u32 seq_no; /* Sequence number */
83 __u8 auth_data[0]; /* Length variable but >=4. Mind the 64 bit alignment! */
88 __u32 seq_no; /* Sequence number */
89 __u8 enc_data[0]; /* Length variable but >=8. Mind the 64 bit alignment! */
92 struct ipv6_comp_hdr {
101 * BEWARE, it is incorrect. The first 4 bits of flow_lbl
102 * are glued to priority now, forming "class".
106 #if defined(__LITTLE_ENDIAN_BITFIELD)
109 #elif defined(__BIG_ENDIAN_BITFIELD)
113 #error "Please fix <asm/byteorder.h>"
121 struct in6_addr saddr;
122 struct in6_addr daddr;
126 * This structure contains configuration options per IPv6 link.
128 struct ipv6_devconf {
133 __s32 accept_redirects;
137 __s32 rtr_solicit_interval;
138 __s32 rtr_solicit_delay;
139 __s32 force_mld_version;
140 #ifdef CONFIG_IPV6_PRIVACY
142 __s32 temp_valid_lft;
143 __s32 temp_prefered_lft;
144 __s32 regen_max_retry;
145 __s32 max_desync_factor;
151 /* index values for the variables in ipv6_devconf */
153 DEVCONF_FORWARDING = 0,
157 DEVCONF_ACCEPT_REDIRECTS,
159 DEVCONF_DAD_TRANSMITS,
160 DEVCONF_RTR_SOLICITS,
161 DEVCONF_RTR_SOLICIT_INTERVAL,
162 DEVCONF_RTR_SOLICIT_DELAY,
163 DEVCONF_USE_TEMPADDR,
164 DEVCONF_TEMP_VALID_LFT,
165 DEVCONF_TEMP_PREFERED_LFT,
166 DEVCONF_REGEN_MAX_RETRY,
167 DEVCONF_MAX_DESYNC_FACTOR,
168 DEVCONF_MAX_ADDRESSES,
169 DEVCONF_FORCE_MLD_VERSION,
174 #include <linux/in6.h> /* struct sockaddr_in6 */
175 #include <linux/icmpv6.h>
176 #include <net/if_inet6.h> /* struct ipv6_mc_socklist */
177 #include <linux/tcp.h>
178 #include <linux/udp.h>
181 This structure contains results of exthdrs parsing
182 as offsets from skb->nh.
185 struct inet6_skb_parm
195 #define IP6CB(skb) ((struct inet6_skb_parm*)((skb)->cb))
198 struct in6_addr saddr;
199 struct in6_addr rcv_saddr;
200 struct in6_addr daddr;
201 struct in6_addr *daddr_cache;
209 /* pktoption flags */
229 struct ipv6_mc_socklist *ipv6_mc_list;
230 struct ipv6_ac_socklist *ipv6_ac_list;
231 struct ipv6_fl_socklist *ipv6_fl_list;
234 struct ipv6_txoptions *opt;
235 struct sk_buff *pktoptions;
237 struct ipv6_txoptions *opt;
244 __u32 checksum; /* perform checksum */
245 __u32 offset; /* checksum offset */
247 struct icmp6_filter filter;
250 /* WARNING: don't change the layout of the members in {raw,udp,tcp}6_sock! */
253 struct ipv6_pinfo *pinet6;
254 struct inet_opt inet;
255 struct raw6_opt raw6;
256 struct ipv6_pinfo inet6;
261 struct ipv6_pinfo *pinet6;
262 struct inet_opt inet;
264 struct ipv6_pinfo inet6;
269 struct ipv6_pinfo *pinet6;
270 struct inet_opt inet;
272 struct ipv6_pinfo inet6;
275 static inline struct ipv6_pinfo * inet6_sk(const struct sock *__sk)
277 return ((struct raw6_sock *)__sk)->pinet6;
280 static inline struct raw6_opt * raw6_sk(const struct sock *__sk)
282 return &((struct raw6_sock *)__sk)->raw6;
285 #if defined(CONFIG_IPV6) || defined(CONFIG_IPV6_MODULE)
286 #define __ipv6_only_sock(sk) (inet6_sk(sk)->ipv6only)
287 #define ipv6_only_sock(sk) ((sk)->sk_family == PF_INET6 && __ipv6_only_sock(sk))
289 #define __ipv6_only_sock(sk) 0
290 #define ipv6_only_sock(sk) 0