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Diffstat (limited to 'net/ipv6/udp.c')
-rw-r--r--net/ipv6/udp.c28
1 files changed, 21 insertions, 7 deletions
diff --git a/net/ipv6/udp.c b/net/ipv6/udp.c
index 71e259e866a1..8b48512ebf6a 100644
--- a/net/ipv6/udp.c
+++ b/net/ipv6/udp.c
@@ -138,6 +138,7 @@ int udpv6_recvmsg(struct kiocb *iocb, struct sock *sk,
138 int peeked; 138 int peeked;
139 int err; 139 int err;
140 int is_udplite = IS_UDPLITE(sk); 140 int is_udplite = IS_UDPLITE(sk);
141 int is_udp4;
141 142
142 if (addr_len) 143 if (addr_len)
143 *addr_len=sizeof(struct sockaddr_in6); 144 *addr_len=sizeof(struct sockaddr_in6);
@@ -158,6 +159,8 @@ try_again:
158 else if (copied < ulen) 159 else if (copied < ulen)
159 msg->msg_flags |= MSG_TRUNC; 160 msg->msg_flags |= MSG_TRUNC;
160 161
162 is_udp4 = (skb->protocol == htons(ETH_P_IP));
163
161 /* 164 /*
162 * If checksum is needed at all, try to do it while copying the 165 * If checksum is needed at all, try to do it while copying the
163 * data. If the data is truncated, or if we only want a partial 166 * data. If the data is truncated, or if we only want a partial
@@ -180,9 +183,14 @@ try_again:
180 if (err) 183 if (err)
181 goto out_free; 184 goto out_free;
182 185
183 if (!peeked) 186 if (!peeked) {
184 UDP6_INC_STATS_USER(sock_net(sk), 187 if (is_udp4)
185 UDP_MIB_INDATAGRAMS, is_udplite); 188 UDP_INC_STATS_USER(sock_net(sk),
189 UDP_MIB_INDATAGRAMS, is_udplite);
190 else
191 UDP6_INC_STATS_USER(sock_net(sk),
192 UDP_MIB_INDATAGRAMS, is_udplite);
193 }
186 194
187 sock_recv_timestamp(msg, sk, skb); 195 sock_recv_timestamp(msg, sk, skb);
188 196
@@ -196,7 +204,7 @@ try_again:
196 sin6->sin6_flowinfo = 0; 204 sin6->sin6_flowinfo = 0;
197 sin6->sin6_scope_id = 0; 205 sin6->sin6_scope_id = 0;
198 206
199 if (skb->protocol == htons(ETH_P_IP)) 207 if (is_udp4)
200 ipv6_addr_set(&sin6->sin6_addr, 0, 0, 208 ipv6_addr_set(&sin6->sin6_addr, 0, 0,
201 htonl(0xffff), ip_hdr(skb)->saddr); 209 htonl(0xffff), ip_hdr(skb)->saddr);
202 else { 210 else {
@@ -207,7 +215,7 @@ try_again:
207 } 215 }
208 216
209 } 217 }
210 if (skb->protocol == htons(ETH_P_IP)) { 218 if (is_udp4) {
211 if (inet->cmsg_flags) 219 if (inet->cmsg_flags)
212 ip_cmsg_recv(msg, skb); 220 ip_cmsg_recv(msg, skb);
213 } else { 221 } else {
@@ -228,8 +236,14 @@ out:
228 236
229csum_copy_err: 237csum_copy_err:
230 lock_sock(sk); 238 lock_sock(sk);
231 if (!skb_kill_datagram(sk, skb, flags)) 239 if (!skb_kill_datagram(sk, skb, flags)) {
232 UDP6_INC_STATS_USER(sock_net(sk), UDP_MIB_INERRORS, is_udplite); 240 if (is_udp4)
241 UDP_INC_STATS_USER(sock_net(sk),
242 UDP_MIB_INERRORS, is_udplite);
243 else
244 UDP6_INC_STATS_USER(sock_net(sk),
245 UDP_MIB_INERRORS, is_udplite);
246 }
233 release_sock(sk); 247 release_sock(sk);
234 248
235 if (flags & MSG_DONTWAIT) 249 if (flags & MSG_DONTWAIT)