[PATCH 08/10] nfs-utils: add IPv6 support to nfssvc_setfds

Jeff Layton
2009-06-03T19:52:50Z

Allow nfssvc_setfds to properly deal with AF_INET6.

IPv6 sockets for knfsd can't be allowed to accept IPv4 packets. Set the
correct option to prevent that from occurring on IPv6 sockets.

Signed-off-by: Jeff Layton <jlayton@redhat.com>
---
support/nfs/nfssvc.c | 14 ++++++++++++++
1 files changed, 14 insertions(+), 0 deletions(-)

diff --git a/support/nfs/nfssvc.c b/support/nfs/nfssvc.c
index 89fb5be..19f1a4c 100644
--- a/support/nfs/nfssvc.c
+++ b/support/nfs/nfssvc.c
@@ -76,6 +76,11 @@ nfssvc_setfds(const struct addrinfo *hints, const char *node, const char *port)
case AF_INET:
family = "inet";
break;
+#ifdef IPV6_SUPPORTED
+ case AF_INET6:
+ family = "inet6";
+ break;
+#endif /* IPV6_SUPPORTED */
default:
xlog(L_ERROR, "Unknown address family specified: %d\n",
hints->ai_family);
@@ -123,6 +128,15 @@ nfssvc_setfds(const struct addrinfo *hints, const char *node, const char *port)
rc = errno;
goto error;
}
+#ifdef IPV6_SUPPORTED
+ 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;
+ }
+#endif /* IPV6_SUPPORTED */
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 "
--
1.6.2.2