The patch below changes autofs to prefer TCP instead of UDP when requesting a
list of exports from the NFS server. This behavior bring autofs inline with how
showmount and kshowmount issue mountd EXPORT requests. It also solves a
possible problem where the export list could be larger than the size of the UDP
packet.
diff --git a/lib/rpc_subs.c b/lib/rpc_subs.c
index cafc775..0ecf447 100644
--- a/lib/rpc_subs.c
+++ b/lib/rpc_subs.c
@@ -938,16 +938,16 @@ exports rpc_get_exports(const char *host, long seconds,
long micros, unsigned in
parms.pm_vers = info.version;
parms.pm_port = 0;
- /* Try UDP first */
- info.proto = getprotobyname("udp");
+ /* Try TCP first */
+ info.proto = getprotobyname("tcp");
if (!info.proto)
- goto try_tcp;
+ goto try_udp;
parms.pm_prot = info.proto->p_proto;
info.port = rpc_portmap_getport(&info, &parms);
if (!info.port)
- goto try_tcp;
+ goto try_udp;
memset(&exportlist, '\0', sizeof(exportlist));
@@ -955,8 +955,8 @@ exports rpc_get_exports(const char *host, long seconds,
long micros, unsigned in
if (status)
return exportlist;
-try_tcp:
- info.proto = getprotobyname("tcp");
+try_udp:
+ info.proto = getprotobyname("udp");
if (!info.proto)
return NULL;
--
Scott Russell <scott.russ...@netapp.com>
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