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>
diff --git a/net/sunrpc/svcsock.c b/net/sunrpc/svcsock.c
index 767d494..dfd686e 100644
--- a/net/sunrpc/svcsock.c
+++ b/net/sunrpc/svcsock.c
@@ -143,19 +143,20 @@
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 @@
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 @@
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 @@
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 */