- 2.6.17 port work build breaks, but the patch set is relativly stable

[linux-flexiantxendom0-3.2.10.git] / net / ipv6 / ipv6_sockglue.c

diff --git a/net/ipv6/ipv6_sockglue.c b/net/ipv6/ipv6_sockglue.c
index f7142ba..4c20eeb 100644 (file)
--- a/net/ipv6/ipv6_sockglue.c
+++ b/net/ipv6/ipv6_sockglue.c
@@ -109,19 +109,13 @@ int ip6_ra_control(struct sock *sk, int sel, void (*destructor)(struct sock *))
        return 0;
 }
 
-int ipv6_setsockopt(struct sock *sk, int level, int optname,
+static int do_ipv6_setsockopt(struct sock *sk, int level, int optname,
                    char __user *optval, int optlen)
 {
        struct ipv6_pinfo *np = inet6_sk(sk);
        int val, valbool;
        int retv = -ENOPROTOOPT;
 
-       if (level == SOL_IP && sk->sk_type != SOCK_RAW)
-               return udp_prot.setsockopt(sk, level, optname, optval, optlen);
-
-       if(level!=SOL_IPV6)
-               goto out;
-
        if (optval == NULL)
                val=0;
        else if (get_user(val, (int __user *) optval))
@@ -613,17 +607,9 @@ done:
                retv = xfrm_user_policy(sk, optname, optval, optlen);
                break;
 
-#ifdef CONFIG_NETFILTER
-       default:
-               retv = nf_setsockopt(sk, PF_INET6, optname, optval, 
-                                           optlen);
-               break;
-#endif
-
        }
        release_sock(sk);
 
-out:
        return retv;
 
 e_inval:
@@ -631,6 +617,65 @@ e_inval:
        return -EINVAL;
 }
 
+int ipv6_setsockopt(struct sock *sk, int level, int optname,
+                   char __user *optval, int optlen)
+{
+       int err;
+
+       if (level == SOL_IP && sk->sk_type != SOCK_RAW)
+               return udp_prot.setsockopt(sk, level, optname, optval, optlen);
+
+       if (level != SOL_IPV6)
+               return -ENOPROTOOPT;
+
+       err = do_ipv6_setsockopt(sk, level, optname, optval, optlen);
+#ifdef CONFIG_NETFILTER
+       /* we need to exclude all possible ENOPROTOOPTs except default case */
+       if (err == -ENOPROTOOPT && optname != IPV6_IPSEC_POLICY &&
+                       optname != IPV6_XFRM_POLICY) {
+               lock_sock(sk);
+               err = nf_setsockopt(sk, PF_INET6, optname, optval,
+                               optlen);
+               release_sock(sk);
+       }
+#endif
+       return err;
+}
+
+
+#ifdef CONFIG_COMPAT
+int compat_ipv6_setsockopt(struct sock *sk, int level, int optname,
+                          char __user *optval, int optlen)
+{
+       int err;
+
+       if (level == SOL_IP && sk->sk_type != SOCK_RAW) {
+               if (udp_prot.compat_setsockopt != NULL)
+                       return udp_prot.compat_setsockopt(sk, level, optname,
+                                                         optval, optlen);
+               return udp_prot.setsockopt(sk, level, optname, optval, optlen);
+       }
+
+       if (level != SOL_IPV6)
+               return -ENOPROTOOPT;
+
+       err = do_ipv6_setsockopt(sk, level, optname, optval, optlen);
+#ifdef CONFIG_NETFILTER
+       /* we need to exclude all possible ENOPROTOOPTs except default case */
+       if (err == -ENOPROTOOPT && optname != IPV6_IPSEC_POLICY &&
+           optname != IPV6_XFRM_POLICY) {
+               lock_sock(sk);
+               err = compat_nf_setsockopt(sk, PF_INET6, optname,
+                                          optval, optlen);
+               release_sock(sk);
+       }
+#endif
+       return err;
+}
+
+EXPORT_SYMBOL(compat_ipv6_setsockopt);
+#endif
+
 static int ipv6_getsockopt_sticky(struct sock *sk, struct ipv6_opt_hdr *hdr,
                                  char __user *optval, int len)
 {
@@ -642,17 +687,13 @@ static int ipv6_getsockopt_sticky(struct sock *sk, struct ipv6_opt_hdr *hdr,
        return len;
 }
 
-int ipv6_getsockopt(struct sock *sk, int level, int optname,
+static int do_ipv6_getsockopt(struct sock *sk, int level, int optname,
                    char __user *optval, int __user *optlen)
 {
        struct ipv6_pinfo *np = inet6_sk(sk);
        int len;
        int val;
 
-       if (level == SOL_IP && sk->sk_type != SOCK_RAW)
-               return udp_prot.getsockopt(sk, level, optname, optval, optlen);
-       if(level!=SOL_IPV6)
-               return -ENOPROTOOPT;
        if (get_user(len, optlen))
                return -EFAULT;
        switch (optname) {
@@ -842,17 +883,7 @@ int ipv6_getsockopt(struct sock *sk, int level, int optname,
                break;
 
        default:
-#ifdef CONFIG_NETFILTER
-               lock_sock(sk);
-               val = nf_getsockopt(sk, PF_INET6, optname, optval, 
-                                   &len);
-               release_sock(sk);
-               if (val >= 0)
-                       val = put_user(len, optlen);
-               return val;
-#else
                return -EINVAL;
-#endif
        }
        len = min_t(unsigned int, sizeof(int), len);
        if(put_user(len, optlen))
@@ -862,6 +893,78 @@ int ipv6_getsockopt(struct sock *sk, int level, int optname,
        return 0;
 }
 
+int ipv6_getsockopt(struct sock *sk, int level, int optname,
+                   char __user *optval, int __user *optlen)
+{
+       int err;
+
+       if (level == SOL_IP && sk->sk_type != SOCK_RAW)
+               return udp_prot.getsockopt(sk, level, optname, optval, optlen);
+
+       if(level != SOL_IPV6)
+               return -ENOPROTOOPT;
+
+       err = do_ipv6_getsockopt(sk, level, optname, optval, optlen);
+#ifdef CONFIG_NETFILTER
+       /* we need to exclude all possible EINVALs except default case */
+       if (err == -EINVAL && optname != IPV6_ADDRFORM &&
+                       optname != MCAST_MSFILTER) {
+               int len;
+
+               if (get_user(len, optlen))
+                       return -EFAULT;
+
+               lock_sock(sk);
+               err = nf_getsockopt(sk, PF_INET6, optname, optval,
+                               &len);
+               release_sock(sk);
+               if (err >= 0)
+                       err = put_user(len, optlen);
+       }
+#endif
+       return err;
+}
+
+#ifdef CONFIG_COMPAT
+int compat_ipv6_getsockopt(struct sock *sk, int level, int optname,
+                          char __user *optval, int __user *optlen)
+{
+       int err;
+
+       if (level == SOL_IP && sk->sk_type != SOCK_RAW) {
+               if (udp_prot.compat_getsockopt != NULL)
+                       return udp_prot.compat_getsockopt(sk, level, optname,
+                                                         optval, optlen);
+               return udp_prot.getsockopt(sk, level, optname, optval, optlen);
+       }
+
+       if (level != SOL_IPV6)
+               return -ENOPROTOOPT;
+
+       err = do_ipv6_getsockopt(sk, level, optname, optval, optlen);
+#ifdef CONFIG_NETFILTER
+       /* we need to exclude all possible EINVALs except default case */
+       if (err == -EINVAL && optname != IPV6_ADDRFORM &&
+                       optname != MCAST_MSFILTER) {
+               int len;
+
+               if (get_user(len, optlen))
+                       return -EFAULT;
+
+               lock_sock(sk);
+               err = compat_nf_getsockopt(sk, PF_INET6,
+                                          optname, optval, &len);
+               release_sock(sk);
+               if (err >= 0)
+                       err = put_user(len, optlen);
+       }
+#endif
+       return err;
+}
+
+EXPORT_SYMBOL(compat_ipv6_getsockopt);
+#endif
+
 void __init ipv6_packet_init(void)
 {
        dev_add_pack(&ipv6_packet_type);