nfsd4: shutdown callbacks on expiry

[safe/jmp/linux-2.6] / net / sctp / bind_addr.c

diff --git a/net/sctp/bind_addr.c b/net/sctp/bind_addr.c
index f62bc24..bef1337 100644 (file)
--- a/net/sctp/bind_addr.c
+++ b/net/sctp/bind_addr.c
@@ -186,7 +186,6 @@ int sctp_add_bind_addr(struct sctp_bind_addr *bp, union sctp_addr *new,
        addr->valid = 1;
 
        INIT_LIST_HEAD(&addr->list);
-       INIT_RCU_HEAD(&addr->rcu);
 
        /* We always hold a socket lock when calling this function,
         * and that acts as a writer synchronizing lock.
@@ -457,7 +456,7 @@ static int sctp_copy_one_addr(struct sctp_bind_addr *dest,
 {
        int error = 0;
 
-       if (sctp_is_any(addr)) {
+       if (sctp_is_any(NULL, addr)) {
                error = sctp_copy_local_addr_list(dest, scope, gfp, flags);
        } else if (sctp_in_scope(addr, scope)) {
                /* Now that the address is in scope, check to see if
@@ -477,11 +476,21 @@ static int sctp_copy_one_addr(struct sctp_bind_addr *dest,
 }
 
 /* Is this a wildcard address?  */
-int sctp_is_any(const union sctp_addr *addr)
+int sctp_is_any(struct sock *sk, const union sctp_addr *addr)
 {
-       struct sctp_af *af = sctp_get_af_specific(addr->sa.sa_family);
+       unsigned short fam = 0;
+       struct sctp_af *af;
+
+       /* Try to get the right address family */
+       if (addr->sa.sa_family != AF_UNSPEC)
+               fam = addr->sa.sa_family;
+       else if (sk)
+               fam = sk->sk_family;
+
+       af = sctp_get_af_specific(fam);
        if (!af)
                return 0;
+
        return af->is_any(addr);
 }
 
@@ -500,9 +509,28 @@ int sctp_in_scope(const union sctp_addr *addr, sctp_scope_t scope)
         * of requested destination address, sender and receiver
         * SHOULD include all of its addresses with level greater
         * than or equal to L.
+        *
+        * Address scoping can be selectively controlled via sysctl
+        * option
         */
-       if (addr_scope <= scope)
+       switch (sctp_scope_policy) {
+       case SCTP_SCOPE_POLICY_DISABLE:
                return 1;
+       case SCTP_SCOPE_POLICY_ENABLE:
+               if (addr_scope <= scope)
+                       return 1;
+               break;
+       case SCTP_SCOPE_POLICY_PRIVATE:
+               if (addr_scope <= scope || SCTP_SCOPE_PRIVATE == addr_scope)
+                       return 1;
+               break;
+       case SCTP_SCOPE_POLICY_LINK:
+               if (addr_scope <= scope || SCTP_SCOPE_LINK == addr_scope)
+                       return 1;
+               break;
+       default:
+               break;
+       }
 
        return 0;
 }