Author: hrs
Date: Sat Sep 21 14:03:41 2019
New Revision: 352575
URL: https://svnweb.freebsd.org/changeset/base/352575

Log:
  MFC r352567:
  
  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:
  stable/12/usr.bin/quota/quota.c
Directory Properties:
  stable/12/   (props changed)

Modified: stable/12/usr.bin/quota/quota.c
==============================================================================
--- stable/12/usr.bin/quota/quota.c     Sat Sep 21 13:34:06 2019        
(r352574)
+++ stable/12/usr.bin/quota/quota.c     Sat Sep 21 14:03:41 2019        
(r352575)
@@ -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;
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