svn commit: r352567 - head/usr.bin/quota

[Hiroki Sato]

Author: hrs
Date: Sat Sep 21 00:17:40 2019
New Revision: 352567
URL: https://svnweb.freebsd.org/changeset/base/352567

Log:
  Add a workaround for servers which respond RPC_PROGNOTREGISTERED
  to a clnt_create() call even when it is actually a program
  version mismatch.
  
  Normally the server is supposed to return RPC_PROGVERSMISMATCH
  when it supports the specified program but not support
  the specified version.  Some filers return RPC_PROGNOTREGISTERED
  to RQUOTA v2 calls and FreeBSD does not retry with the old
  v1 calls.  This change fixes this failure scenario.
  
  Submitted by:	Jian-Bo Liao
  PR:		236179

Modified:
  head/usr.bin/quota/quota.c

Modified: head/usr.bin/quota/quota.c
==============================================================================
--- head/usr.bin/quota/quota.c	Fri Sep 20 22:07:59 2019	(r352566)
+++ head/usr.bin/quota/quota.c	Sat Sep 21 00:17:40 2019	(r352567)
@@ -606,7 +606,7 @@ getnfsquota(struct statfs *fst, struct quotause *qup, 
 	call_stat = callaurpc(host, RQUOTAPROG, EXT_RQUOTAVERS,
 			      RQUOTAPROC_GETQUOTA, (xdrproc_t)xdr_ext_getquota_args, (char *)&gq_args,
 			      (xdrproc_t)xdr_getquota_rslt, (char *)&gq_rslt);
-	if (call_stat == RPC_PROGVERSMISMATCH) {
+	if (call_stat == RPC_PROGVERSMISMATCH || call_stat == RPC_PROGNOTREGISTERED) {
 		if (quotatype == USRQUOTA) {
 			old_gq_args.gqa_pathp = cp + 1;
 			old_gq_args.gqa_uid = id;