IPv6 sockets for knfsd can't be allowed to accept IPv4 packets. Set the
correct option to prevent it.
Signed-off-by: Jeff Layton <jlayton@xxxxxxxxxx>
---
support/nfs/nfssvc.c | 7 +++++++
1 files changed, 7 insertions(+), 0 deletions(-)
diff --git a/support/nfs/nfssvc.c b/support/nfs/nfssvc.c
index e7f3262..1bb64f0 100644
--- a/support/nfs/nfssvc.c
+++ b/support/nfs/nfssvc.c
@@ -123,6 +123,13 @@ nfssvc_setfds(const struct addrinfo *hints, const char *node, const char *port)
rc = errno;
goto error;
}
+ if (addr->ai_family == AF_INET6 &&
+ setsockopt(sockfd, IPPROTO_IPV6, IPV6_V6ONLY, &on, sizeof(on))) {
+ xlog(L_ERROR, "unable to set IPV6_V6ONLY: "
+ "errno %d (%s)\n", errno, strerror(errno));
+ rc = -errno;
+ goto error;
+ }
if (addr->ai_protocol == IPPROTO_TCP &&
setsockopt(sockfd, SOL_SOCKET, SO_REUSEADDR, &on, sizeof(on))) {
xlog(L_ERROR, "unable to set SO_REUSEADDR on %s "
--
1.6.0.6
--
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