From dd0761b4852d9946efa86c7403e45b937462503f Mon Sep 17 00:00:00 2001
From: Chuck Lever <chuck.lever@oracle.com>
Date: Tue, 14 Jul 2009 16:25:43 -0400
Subject: [PATCH] mount.nfs: Add more debugging output around nfs_getport()
So we can see how rpcbind queries are failing during mount processing,
add some debugging messages (enabled with "mount.nfs -v") around the
nfs_getport() calls.
Signed-off-by: Chuck Lever <chuck.lever@oracle.com>
Signed-off-by: Steve Dickson <steved@redhat.com>
---
utils/mount/network.c | 28 ++++++++++++++++++++++++----
1 file changed, 24 insertions(+), 4 deletions(-)
diff --git a/utils/mount/network.c b/utils/mount/network.c
index 3080378..9661995 100644
--- a/utils/mount/network.c
+++ b/utils/mount/network.c
@@ -509,6 +509,21 @@ static void nfs_pp_debug(const struct sockaddr *sap, const socklen_t salen,
port);
}
+static void nfs_pp_debug2(const char *str)
+{
+ if (!verbose)
+ return;
+
+ if (rpc_createerr.cf_error.re_status == RPC_CANTRECV ||
+ rpc_createerr.cf_error.re_status == RPC_CANTSEND)
+ nfs_error(_("%s: portmap query %s%s - %s"),
+ progname, str, clnt_spcreateerror(""),
+ strerror(rpc_createerr.cf_error.re_errno));
+ else
+ nfs_error(_("%s: portmap query %s%s"),
+ progname, str, clnt_spcreateerror(""));
+}
+
/*
* Use the portmapper to discover whether or not the service we want is
* available. The lists 'versions' and 'protos' define ordered sequences
@@ -540,6 +555,9 @@ static int nfs_probe_port(const struct sockaddr *sap, const socklen_t salen,
p_vers = vers ? &vers : versions;
for (;;) {
+ if (verbose)
+ printf(_("%s: prog %lu, trying vers=%lu, prot=%u\n"),
+ progname, prog, *p_vers, *p_prot);
p_port = nfs_getport(saddr, salen, prog, *p_vers, *p_prot);
if (p_port) {
if (!port || port == p_port) {
@@ -555,22 +573,24 @@ static int nfs_probe_port(const struct sockaddr *sap, const socklen_t salen,
rpc_createerr.cf_stat != RPC_TIMEDOUT &&
rpc_createerr.cf_stat != RPC_CANTRECV &&
rpc_createerr.cf_stat != RPC_PROGVERSMISMATCH)
- goto out_bad;
+ break;
if (!prot) {
- if (*++p_prot)
+ if (*++p_prot) {
+ nfs_pp_debug2("retrying");
continue;
+ }
p_prot = protos;
}
if (rpc_createerr.cf_stat == RPC_TIMEDOUT ||
rpc_createerr.cf_stat == RPC_CANTRECV)
- goto out_bad;
+ break;
if (vers || !*++p_vers)
break;
}
-out_bad:
+ nfs_pp_debug2("failed");
return 0;
out_ok:
--
2.39.5