X-Git-Url: http://git.rot13.org/?a=blobdiff_plain;f=include%2Fnet%2Fipv6.h;h=72bf47b2a4e0c9bfe34583980f429b1d691557c9;hb=1aedf2ccc60fade26c46fae12e28664d0da3f199;hp=65ec86678a08e34280fdd23e7e10f2c2cbb1494f;hpb=2fc2991175bf77395e6b15fe6b2304d3bf72da40;p=powerpc.git diff --git a/include/net/ipv6.h b/include/net/ipv6.h index 65ec86678a..72bf47b2a4 100644 --- a/include/net/ipv6.h +++ b/include/net/ipv6.h @@ -40,6 +40,7 @@ #define NEXTHDR_ICMP 58 /* ICMP for IPv6. */ #define NEXTHDR_NONE 59 /* No next header */ #define NEXTHDR_DEST 60 /* Destination options header. */ +#define NEXTHDR_MOBILITY 135 /* Mobility header. */ #define NEXTHDR_MAX 255 @@ -104,7 +105,6 @@ struct frag_hdr { #ifdef __KERNEL__ -#include #include /* sysctls */ @@ -230,13 +230,17 @@ extern int ip6_ra_control(struct sock *sk, int sel, void (*destructor)(struct sock *)); -extern int ipv6_parse_hopopts(struct sk_buff *skb, int); +extern int ipv6_parse_hopopts(struct sk_buff **skbp); extern struct ipv6_txoptions * ipv6_dup_options(struct sock *sk, struct ipv6_txoptions *opt); extern struct ipv6_txoptions * ipv6_renew_options(struct sock *sk, struct ipv6_txoptions *opt, int newtype, struct ipv6_opt_hdr __user *newopt, int newoptlen); +struct ipv6_txoptions *ipv6_fixup_options(struct ipv6_txoptions *opt_space, + struct ipv6_txoptions *opt); + +extern int ipv6_opt_accepted(struct sock *sk, struct sk_buff *skb); extern int ip6_frag_nqueues; extern atomic_t ip6_frag_mem; @@ -252,12 +256,25 @@ typedef int (*inet_getfrag_t) (const void *data, char *, unsigned int, unsigned int); - -extern int ipv6_addr_type(const struct in6_addr *addr); +extern int __ipv6_addr_type(const struct in6_addr *addr); +static inline int ipv6_addr_type(const struct in6_addr *addr) +{ + return __ipv6_addr_type(addr) & 0xffff; +} static inline int ipv6_addr_scope(const struct in6_addr *addr) { - return ipv6_addr_type(addr) & IPV6_ADDR_SCOPE_MASK; + return __ipv6_addr_type(addr) & IPV6_ADDR_SCOPE_MASK; +} + +static inline int __ipv6_addr_src_scope(int type) +{ + return (type == IPV6_ADDR_ANY ? __IPV6_ADDR_SCOPE_INVALID : (type >> 16)); +} + +static inline int ipv6_addr_src_scope(const struct in6_addr *addr) +{ + return __ipv6_addr_src_scope(__ipv6_addr_type(addr)); } static inline int ipv6_addr_cmp(const struct in6_addr *a1, const struct in6_addr *a2) @@ -265,6 +282,18 @@ static inline int ipv6_addr_cmp(const struct in6_addr *a1, const struct in6_addr return memcmp((const void *) a1, (const void *) a2, sizeof(struct in6_addr)); } +static inline int +ipv6_masked_addr_cmp(const struct in6_addr *a1, const struct in6_addr *m, + const struct in6_addr *a2) +{ + unsigned int i; + + for (i = 0; i < 4; i++) + if ((a1->s6_addr32[i] ^ a2->s6_addr32[i]) & m->s6_addr32[i]) + return 1; + return 0; +} + static inline void ipv6_addr_copy(struct in6_addr *a1, const struct in6_addr *a2) { memcpy((void *) a1, (const void *) a2, sizeof(struct in6_addr)); @@ -340,6 +369,54 @@ static inline int ipv6_addr_any(const struct in6_addr *a) a->s6_addr32[2] | a->s6_addr32[3] ) == 0); } +/* + * find the first different bit between two addresses + * length of address must be a multiple of 32bits + */ +static inline int __ipv6_addr_diff(const void *token1, const void *token2, int addrlen) +{ + const __u32 *a1 = token1, *a2 = token2; + int i; + + addrlen >>= 2; + + for (i = 0; i < addrlen; i++) { + __u32 xb = a1[i] ^ a2[i]; + if (xb) { + int j = 31; + + xb = ntohl(xb); + while ((xb & (1 << j)) == 0) + j--; + + return (i * 32 + 31 - j); + } + } + + /* + * we should *never* get to this point since that + * would mean the addrs are equal + * + * However, we do get to it 8) And exacly, when + * addresses are equal 8) + * + * ip route add 1111::/128 via ... + * ip route add 1111::/64 via ... + * and we are here. + * + * Ideally, this function should stop comparison + * at prefix length. It does not, but it is still OK, + * if returned value is greater than prefix length. + * --ANK (980803) + */ + return (addrlen << 5); +} + +static inline int ipv6_addr_diff(const struct in6_addr *a1, const struct in6_addr *a2) +{ + return __ipv6_addr_diff(a1, a2, sizeof(struct in6_addr)); +} + /* * Prototypes exported by ipv6 */ @@ -353,6 +430,8 @@ extern int ipv6_rcv(struct sk_buff *skb, struct packet_type *pt, struct net_device *orig_dev); +extern int ip6_rcv_finish(struct sk_buff *skb); + /* * upper-layer output functions */ @@ -390,6 +469,9 @@ extern void ip6_flush_pending_frames(struct sock *sk); extern int ip6_dst_lookup(struct sock *sk, struct dst_entry **dst, struct flowi *fl); +extern int ip6_sk_dst_lookup(struct sock *sk, + struct dst_entry **dst, + struct flowi *fl); /* * skb processing functions @@ -425,6 +507,8 @@ extern int ipv6_skip_exthdr(const struct sk_buff *, int start, extern int ipv6_ext_hdr(u8 nexthdr); +extern int ipv6_find_tlv(struct sk_buff *skb, int offset, int type); + extern struct ipv6_txoptions * ipv6_invert_rthdr(struct sock *sk, struct ipv6_rt_hdr *hdr); @@ -441,6 +525,16 @@ extern int ipv6_getsockopt(struct sock *sk, int level, int optname, char __user *optval, int __user *optlen); +extern int compat_ipv6_setsockopt(struct sock *sk, + int level, + int optname, + char __user *optval, + int optlen); +extern int compat_ipv6_getsockopt(struct sock *sk, + int level, + int optname, + char __user *optval, + int __user *optlen); extern void ipv6_packet_init(void); @@ -462,6 +556,9 @@ extern int inet6_getname(struct socket *sock, struct sockaddr *uaddr, extern int inet6_ioctl(struct socket *sock, unsigned int cmd, unsigned long arg); +extern int inet6_hash_connect(struct inet_timewait_death_row *death_row, + struct sock *sk); + /* * reassembly.c */ @@ -470,8 +567,11 @@ extern int sysctl_ip6frag_low_thresh; extern int sysctl_ip6frag_time; extern int sysctl_ip6frag_secret_interval; -extern struct proto_ops inet6_stream_ops; -extern struct proto_ops inet6_dgram_ops; +extern const struct proto_ops inet6_stream_ops; +extern const struct proto_ops inet6_dgram_ops; + +struct group_source_req; +struct group_filter; extern int ip6_mc_source(int add, int omode, struct sock *sk, struct group_source_req *pgsr);