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Diffstat (limited to 'net/ipv6/datagram.c')
-rw-r--r--net/ipv6/datagram.c31
1 files changed, 24 insertions, 7 deletions
diff --git a/net/ipv6/datagram.c b/net/ipv6/datagram.c
index 2cdc38338be3..100c589a2a6c 100644
--- a/net/ipv6/datagram.c
+++ b/net/ipv6/datagram.c
@@ -325,6 +325,16 @@ void ipv6_local_rxpmtu(struct sock *sk, struct flowi6 *fl6, u32 mtu)
kfree_skb(skb);
}
+static void ip6_datagram_prepare_pktinfo_errqueue(struct sk_buff *skb)
+{
+ int ifindex = skb->dev ? skb->dev->ifindex : -1;
+
+ if (skb->protocol == htons(ETH_P_IPV6))
+ IP6CB(skb)->iif = ifindex;
+ else
+ PKTINFO_SKB_CB(skb)->ipi_ifindex = ifindex;
+}
+
/*
* Handle MSG_ERRQUEUE
*/
@@ -351,7 +361,7 @@ int ipv6_recv_error(struct sock *sk, struct msghdr *msg, int len, int *addr_len)
msg->msg_flags |= MSG_TRUNC;
copied = len;
}
- err = skb_copy_datagram_iovec(skb, 0, msg->msg_iov, copied);
+ err = skb_copy_datagram_msg(skb, 0, msg, copied);
if (err)
goto out_free_skb;
@@ -388,8 +398,12 @@ int ipv6_recv_error(struct sock *sk, struct msghdr *msg, int len, int *addr_len)
sin->sin6_family = AF_INET6;
sin->sin6_flowinfo = 0;
sin->sin6_port = 0;
- if (np->rxopt.all)
+ if (np->rxopt.all) {
+ if (serr->ee.ee_origin != SO_EE_ORIGIN_ICMP &&
+ serr->ee.ee_origin != SO_EE_ORIGIN_ICMP6)
+ ip6_datagram_prepare_pktinfo_errqueue(skb);
ip6_datagram_recv_common_ctl(sk, msg, skb);
+ }
if (skb->protocol == htons(ETH_P_IPV6)) {
sin->sin6_addr = ipv6_hdr(skb)->saddr;
if (np->rxopt.all)
@@ -445,7 +459,7 @@ int ipv6_recv_rxpmtu(struct sock *sk, struct msghdr *msg, int len,
msg->msg_flags |= MSG_TRUNC;
copied = len;
}
- err = skb_copy_datagram_iovec(skb, 0, msg->msg_iov, copied);
+ err = skb_copy_datagram_msg(skb, 0, msg, copied);
if (err)
goto out_free_skb;
@@ -491,7 +505,10 @@ void ip6_datagram_recv_common_ctl(struct sock *sk, struct msghdr *msg,
ipv6_addr_set_v4mapped(ip_hdr(skb)->daddr,
&src_info.ipi6_addr);
}
- put_cmsg(msg, SOL_IPV6, IPV6_PKTINFO, sizeof(src_info), &src_info);
+
+ if (src_info.ipi6_ifindex >= 0)
+ put_cmsg(msg, SOL_IPV6, IPV6_PKTINFO,
+ sizeof(src_info), &src_info);
}
}
@@ -640,7 +657,7 @@ int ip6_datagram_send_ctl(struct net *net, struct sock *sk,
int len;
int err = 0;
- for (cmsg = CMSG_FIRSTHDR(msg); cmsg; cmsg = CMSG_NXTHDR(msg, cmsg)) {
+ for_each_cmsghdr(cmsg, msg) {
int addr_type;
if (!CMSG_OK(msg, cmsg)) {
@@ -893,8 +910,8 @@ int ip6_datagram_send_ctl(struct net *net, struct sock *sk,
break;
}
default:
- LIMIT_NETDEBUG(KERN_DEBUG "invalid cmsg type: %d\n",
- cmsg->cmsg_type);
+ net_dbg_ratelimited("invalid cmsg type: %d\n",
+ cmsg->cmsg_type);
err = -EINVAL;
goto exit_f;
}