Merge branch 'upstream' of git://ftp.linux-mips.org/pub/scm/upstream-linus

[linux-drm-fsl-dcu.git] / net / ipv6 / ipv6_sockglue.c

diff --git a/net/ipv6/ipv6_sockglue.c b/net/ipv6/ipv6_sockglue.c
index a5eaaf693abf7dad7c3e320f775bafa0f4be631b..3f1e779ea5c52151e748a807dcb141ecbea0786f 100644 (file)
--- a/net/ipv6/ipv6_sockglue.c
+++ b/net/ipv6/ipv6_sockglue.c
@@ -1,9 +1,9 @@
 /*
  *     IPv6 BSD socket options interface
- *     Linux INET6 implementation 
+ *     Linux INET6 implementation
  *
  *     Authors:
- *     Pedro Roque             <roque@di.fc.ul.pt>     
+ *     Pedro Roque             <roque@di.fc.ul.pt>
  *
  *     Based on linux/net/ipv4/ip_sockglue.c
  *
@@ -51,6 +51,7 @@
 #include <net/inet_common.h>
 #include <net/tcp.h>
 #include <net/udp.h>
+#include <net/udplite.h>
 #include <net/xfrm.h>
 
 #include <asm/uaccess.h>
@@ -123,6 +124,9 @@ static struct sk_buff *ipv6_gso_segment(struct sk_buff *skb, int features)
        struct ipv6hdr *ipv6h;
        struct inet6_protocol *ops;
 
+       if (!(features & NETIF_F_HW_CSUM))
+               features &= ~NETIF_F_SG;
+
        if (unlikely(skb_shinfo(skb)->gso_type &
                     ~(SKB_GSO_UDP |
                       SKB_GSO_DODGY |
@@ -160,7 +164,7 @@ out:
 }
 
 static struct packet_type ipv6_packet_type = {
-       .type = __constant_htons(ETH_P_IPV6), 
+       .type = __constant_htons(ETH_P_IPV6),
        .func = ipv6_rcv,
        .gso_send_check = ipv6_gso_send_check,
        .gso_segment = ipv6_gso_segment,
@@ -236,6 +240,7 @@ static int do_ipv6_setsockopt(struct sock *sk, int level, int optname,
                        struct sk_buff *pktopt;
 
                        if (sk->sk_protocol != IPPROTO_UDP &&
+                           sk->sk_protocol != IPPROTO_UDPLITE &&
                            sk->sk_protocol != IPPROTO_TCP)
                                break;
 
@@ -273,11 +278,15 @@ static int do_ipv6_setsockopt(struct sock *sk, int level, int optname,
                                sk->sk_family = PF_INET;
                                tcp_sync_mss(sk, icsk->icsk_pmtu_cookie);
                        } else {
+                               struct proto *prot = &udp_prot;
+
+                               if (sk->sk_protocol == IPPROTO_UDPLITE)
+                                       prot = &udplite_prot;
                                local_bh_disable();
                                sock_prot_dec_use(sk->sk_prot);
-                               sock_prot_inc_use(&udp_prot);
+                               sock_prot_inc_use(prot);
                                local_bh_enable();
-                               sk->sk_prot = &udp_prot;
+                               sk->sk_prot = prot;
                                sk->sk_socket->ops = &inet_dgram_ops;
                                sk->sk_family = PF_INET;
                        }
@@ -311,7 +320,7 @@ static int do_ipv6_setsockopt(struct sock *sk, int level, int optname,
                np->rxopt.bits.rxinfo = valbool;
                retv = 0;
                break;
-               
+
        case IPV6_2292PKTINFO:
                np->rxopt.bits.rxoinfo = valbool;
                retv = 0;
@@ -367,7 +376,7 @@ static int do_ipv6_setsockopt(struct sock *sk, int level, int optname,
                np->tclass = val;
                retv = 0;
                break;
-               
+
        case IPV6_RECVTCLASS:
                np->rxopt.bits.rxtclass = valbool;
                retv = 0;
@@ -407,8 +416,16 @@ static int do_ipv6_setsockopt(struct sock *sk, int level, int optname,
                /* routing header option needs extra check */
                if (optname == IPV6_RTHDR && opt->srcrt) {
                        struct ipv6_rt_hdr *rthdr = opt->srcrt;
-                       if (rthdr->type)
+                       switch (rthdr->type) {
+                       case IPV6_SRCRT_TYPE_0:
+#ifdef CONFIG_IPV6_MIP6
+                       case IPV6_SRCRT_TYPE_2:
+#endif
+                               break;
+                       default:
                                goto sticky_done;
+                       }
+
                        if ((rthdr->hdrlen & 1) ||
                            (rthdr->hdrlen >> 1) != rthdr->segments_left)
                                goto sticky_done;
@@ -802,6 +819,7 @@ static int do_ipv6_getsockopt(struct sock *sk, int level, int optname,
        switch (optname) {
        case IPV6_ADDRFORM:
                if (sk->sk_protocol != IPPROTO_UDP &&
+                   sk->sk_protocol != IPPROTO_UDPLITE &&
                    sk->sk_protocol != IPPROTO_TCP)
                        return -EINVAL;
                if (sk->sk_state != TCP_ESTABLISHED)
@@ -875,7 +893,7 @@ static int do_ipv6_getsockopt(struct sock *sk, int level, int optname,
        case IPV6_MTU:
        {
                struct dst_entry *dst;
-               val = 0;        
+               val = 0;
                lock_sock(sk);
                dst = sk_dst_get(sk);
                if (dst) {
@@ -960,12 +978,27 @@ static int do_ipv6_getsockopt(struct sock *sk, int level, int optname,
                break;
 
        case IPV6_UNICAST_HOPS:
-               val = np->hop_limit;
-               break;
-
        case IPV6_MULTICAST_HOPS:
-               val = np->mcast_hops;
+       {
+               struct dst_entry *dst;
+
+               if (optname == IPV6_UNICAST_HOPS)
+                       val = np->hop_limit;
+               else
+                       val = np->mcast_hops;
+
+               dst = sk_dst_get(sk);
+               if (dst) {
+                       if (val < 0)
+                               val = dst_metric(dst, RTAX_HOPLIMIT);
+                       if (val < 0)
+                               val = ipv6_get_hoplimit(dst->dev);
+                       dst_release(dst);
+               }
+               if (val < 0)
+                       val = ipv6_devconf.hop_limit;
                break;
+       }
 
        case IPV6_MULTICAST_LOOP:
                val = np->mc_loop;