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authorMi Jinlong <mijinlong@cn.fujitsu.com>2011-08-30 17:18:41 +0800
committerJ. Bruce Fields <bfields@redhat.com>2011-09-14 08:21:48 -0400
commit849a1cf13d4394d398d91752166e92e9ecd64f8d (patch)
tree475c08721cb327b924035144f771dd2d85eda0cd /net/sunrpc
parent11fcee0293a6d9f0973e04f8b3fb6cd15a55bcce (diff)
downloadlwn-849a1cf13d4394d398d91752166e92e9ecd64f8d.tar.gz
lwn-849a1cf13d4394d398d91752166e92e9ecd64f8d.zip
SUNRPC: Replace svc_addr_u by sockaddr_storage
For IPv6 local address, lockd can not callback to client for missing scope id when binding address at inet6_bind: 324 if (addr_type & IPV6_ADDR_LINKLOCAL) { 325 if (addr_len >= sizeof(struct sockaddr_in6) && 326 addr->sin6_scope_id) { 327 /* Override any existing binding, if another one 328 * is supplied by user. 329 */ 330 sk->sk_bound_dev_if = addr->sin6_scope_id; 331 } 332 333 /* Binding to link-local address requires an interface */ 334 if (!sk->sk_bound_dev_if) { 335 err = -EINVAL; 336 goto out_unlock; 337 } Replacing svc_addr_u by sockaddr_storage, let rqstp->rq_daddr contains more info besides address. Reviewed-by: Jeff Layton <jlayton@redhat.com> Reviewed-by: Chuck Lever <chuck.lever@oracle.com> Signed-off-by: Mi Jinlong <mijinlong@cn.fujitsu.com> Signed-off-by: J. Bruce Fields <bfields@redhat.com>
Diffstat (limited to 'net/sunrpc')
-rw-r--r--net/sunrpc/svc_xprt.c13
-rw-r--r--net/sunrpc/svcsock.c23
2 files changed, 19 insertions, 17 deletions
diff --git a/net/sunrpc/svc_xprt.c b/net/sunrpc/svc_xprt.c
index bd31208bbb61..d86bb673e1f6 100644
--- a/net/sunrpc/svc_xprt.c
+++ b/net/sunrpc/svc_xprt.c
@@ -254,8 +254,6 @@ EXPORT_SYMBOL_GPL(svc_create_xprt);
*/
void svc_xprt_copy_addrs(struct svc_rqst *rqstp, struct svc_xprt *xprt)
{
- struct sockaddr *sin;
-
memcpy(&rqstp->rq_addr, &xprt->xpt_remote, xprt->xpt_remotelen);
rqstp->rq_addrlen = xprt->xpt_remotelen;
@@ -263,15 +261,8 @@ void svc_xprt_copy_addrs(struct svc_rqst *rqstp, struct svc_xprt *xprt)
* Destination address in request is needed for binding the
* source address in RPC replies/callbacks later.
*/
- sin = (struct sockaddr *)&xprt->xpt_local;
- switch (sin->sa_family) {
- case AF_INET:
- rqstp->rq_daddr.addr = ((struct sockaddr_in *)sin)->sin_addr;
- break;
- case AF_INET6:
- rqstp->rq_daddr.addr6 = ((struct sockaddr_in6 *)sin)->sin6_addr;
- break;
- }
+ memcpy(&rqstp->rq_daddr, &xprt->xpt_local, xprt->xpt_locallen);
+ rqstp->rq_daddrlen = xprt->xpt_locallen;
}
EXPORT_SYMBOL_GPL(svc_xprt_copy_addrs);
diff --git a/net/sunrpc/svcsock.c b/net/sunrpc/svcsock.c
index 767d494de7a2..dfd686eb0b7f 100644
--- a/net/sunrpc/svcsock.c
+++ b/net/sunrpc/svcsock.c
@@ -143,19 +143,20 @@ static void svc_set_cmsg_data(struct svc_rqst *rqstp, struct cmsghdr *cmh)
cmh->cmsg_level = SOL_IP;
cmh->cmsg_type = IP_PKTINFO;
pki->ipi_ifindex = 0;
- pki->ipi_spec_dst.s_addr = rqstp->rq_daddr.addr.s_addr;
+ pki->ipi_spec_dst.s_addr =
+ svc_daddr_in(rqstp)->sin_addr.s_addr;
cmh->cmsg_len = CMSG_LEN(sizeof(*pki));
}
break;
case AF_INET6: {
struct in6_pktinfo *pki = CMSG_DATA(cmh);
+ struct sockaddr_in6 *daddr = svc_daddr_in6(rqstp);
cmh->cmsg_level = SOL_IPV6;
cmh->cmsg_type = IPV6_PKTINFO;
- pki->ipi6_ifindex = 0;
- ipv6_addr_copy(&pki->ipi6_addr,
- &rqstp->rq_daddr.addr6);
+ pki->ipi6_ifindex = daddr->sin6_scope_id;
+ ipv6_addr_copy(&pki->ipi6_addr, &daddr->sin6_addr);
cmh->cmsg_len = CMSG_LEN(sizeof(*pki));
}
break;
@@ -498,9 +499,13 @@ static int svc_udp_get_dest_address4(struct svc_rqst *rqstp,
struct cmsghdr *cmh)
{
struct in_pktinfo *pki = CMSG_DATA(cmh);
+ struct sockaddr_in *daddr = svc_daddr_in(rqstp);
+
if (cmh->cmsg_type != IP_PKTINFO)
return 0;
- rqstp->rq_daddr.addr.s_addr = pki->ipi_spec_dst.s_addr;
+
+ daddr->sin_family = AF_INET;
+ daddr->sin_addr.s_addr = pki->ipi_spec_dst.s_addr;
return 1;
}
@@ -511,9 +516,14 @@ static int svc_udp_get_dest_address6(struct svc_rqst *rqstp,
struct cmsghdr *cmh)
{
struct in6_pktinfo *pki = CMSG_DATA(cmh);
+ struct sockaddr_in6 *daddr = svc_daddr_in6(rqstp);
+
if (cmh->cmsg_type != IPV6_PKTINFO)
return 0;
- ipv6_addr_copy(&rqstp->rq_daddr.addr6, &pki->ipi6_addr);
+
+ daddr->sin6_family = AF_INET6;
+ ipv6_addr_copy(&daddr->sin6_addr, &pki->ipi6_addr);
+ daddr->sin6_scope_id = pki->ipi6_ifindex;
return 1;
}
@@ -614,6 +624,7 @@ static int svc_udp_recvfrom(struct svc_rqst *rqstp)
skb_free_datagram_locked(svsk->sk_sk, skb);
return 0;
}
+ rqstp->rq_daddrlen = svc_addr_len(svc_daddr(rqstp));
if (skb_is_nonlinear(skb)) {
/* we have to copy */