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Diffstat (limited to 'net/ipv4/udp.c')
-rw-r--r--net/ipv4/udp.c41
1 files changed, 18 insertions, 23 deletions
diff --git a/net/ipv4/udp.c b/net/ipv4/udp.c
index 5d075b5f70fc..d6f5feeb3eaf 100644
--- a/net/ipv4/udp.c
+++ b/net/ipv4/udp.c
@@ -77,6 +77,8 @@
* 2 of the License, or (at your option) any later version.
*/
+#define pr_fmt(fmt) "UDP: " fmt
+
#include <asm/system.h>
#include <asm/uaccess.h>
#include <asm/ioctls.h>
@@ -917,7 +919,8 @@ int udp_sendmsg(struct kiocb *iocb, struct sock *sk, struct msghdr *msg,
if (!saddr)
saddr = inet->mc_addr;
connected = 0;
- }
+ } else if (!ipc.oif)
+ ipc.oif = inet->uc_index;
if (connected)
rt = (struct rtable *)sk_dst_check(sk, 0);
@@ -974,7 +977,7 @@ back_from_confirm:
/* ... which is an evident application bug. --ANK */
release_sock(sk);
- LIMIT_NETDEBUG(KERN_DEBUG "udp cork app bug 2\n");
+ LIMIT_NETDEBUG(KERN_DEBUG pr_fmt("cork app bug 2\n"));
err = -EINVAL;
goto out;
}
@@ -1053,7 +1056,7 @@ int udp_sendpage(struct sock *sk, struct page *page, int offset,
if (unlikely(!up->pending)) {
release_sock(sk);
- LIMIT_NETDEBUG(KERN_DEBUG "udp cork app bug 3\n");
+ LIMIT_NETDEBUG(KERN_DEBUG pr_fmt("udp cork app bug 3\n"));
return -EINVAL;
}
@@ -1166,7 +1169,7 @@ int udp_recvmsg(struct kiocb *iocb, struct sock *sk, struct msghdr *msg,
struct sockaddr_in *sin = (struct sockaddr_in *)msg->msg_name;
struct sk_buff *skb;
unsigned int ulen, copied;
- int peeked;
+ int peeked, off = 0;
int err;
int is_udplite = IS_UDPLITE(sk);
bool slow;
@@ -1182,7 +1185,7 @@ int udp_recvmsg(struct kiocb *iocb, struct sock *sk, struct msghdr *msg,
try_again:
skb = __skb_recv_datagram(sk, flags | (noblock ? MSG_DONTWAIT : 0),
- &peeked, &err);
+ &peeked, &off, &err);
if (!skb)
goto out;
@@ -1446,9 +1449,8 @@ int udp_queue_rcv_skb(struct sock *sk, struct sk_buff *skb)
* provided by the application."
*/
if (up->pcrlen == 0) { /* full coverage was set */
- LIMIT_NETDEBUG(KERN_WARNING "UDPLITE: partial coverage "
- "%d while full coverage %d requested\n",
- UDP_SKB_CB(skb)->cscov, skb->len);
+ LIMIT_NETDEBUG(KERN_WARNING "UDPLite: partial coverage %d while full coverage %d requested\n",
+ UDP_SKB_CB(skb)->cscov, skb->len);
goto drop;
}
/* The next case involves violating the min. coverage requested
@@ -1458,9 +1460,8 @@ int udp_queue_rcv_skb(struct sock *sk, struct sk_buff *skb)
* Therefore the above ...()->partial_cov statement is essential.
*/
if (UDP_SKB_CB(skb)->cscov < up->pcrlen) {
- LIMIT_NETDEBUG(KERN_WARNING
- "UDPLITE: coverage %d too small, need min %d\n",
- UDP_SKB_CB(skb)->cscov, up->pcrlen);
+ LIMIT_NETDEBUG(KERN_WARNING "UDPLite: coverage %d too small, need min %d\n",
+ UDP_SKB_CB(skb)->cscov, up->pcrlen);
goto drop;
}
}
@@ -1688,13 +1689,10 @@ int __udp4_lib_rcv(struct sk_buff *skb, struct udp_table *udptable,
short_packet:
LIMIT_NETDEBUG(KERN_DEBUG "UDP%s: short packet: From %pI4:%u %d/%d to %pI4:%u\n",
- proto == IPPROTO_UDPLITE ? "-Lite" : "",
- &saddr,
- ntohs(uh->source),
- ulen,
- skb->len,
- &daddr,
- ntohs(uh->dest));
+ proto == IPPROTO_UDPLITE ? "Lite" : "",
+ &saddr, ntohs(uh->source),
+ ulen, skb->len,
+ &daddr, ntohs(uh->dest));
goto drop;
csum_error:
@@ -1703,11 +1701,8 @@ csum_error:
* the network is concerned, anyway) as per 4.1.3.4 (MUST).
*/
LIMIT_NETDEBUG(KERN_DEBUG "UDP%s: bad checksum. From %pI4:%u to %pI4:%u ulen %d\n",
- proto == IPPROTO_UDPLITE ? "-Lite" : "",
- &saddr,
- ntohs(uh->source),
- &daddr,
- ntohs(uh->dest),
+ proto == IPPROTO_UDPLITE ? "Lite" : "",
+ &saddr, ntohs(uh->source), &daddr, ntohs(uh->dest),
ulen);
drop:
UDP_INC_STATS_BH(net, UDP_MIB_INERRORS, proto == IPPROTO_UDPLITE);