Merge mulgrave-w:git/linux-2.6

[powerpc.git] / include / net / ipv6.h

diff --git a/include/net/ipv6.h b/include/net/ipv6.h
index 65ec866..72bf47b 100644 (file)
--- 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 <linux/config.h>
 #include <net/sock.h>
 
 /* 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);