Return the corrent number of entries found to the autofs client (related: #928447)

0008-autofs-fix-invalid-header-number-of-entries-in-packe.patch

@@ -0,0 +1,53 @@
+From cd2327153a9ac55f3cf470c294691506096bd1eb Mon Sep 17 00:00:00 2001
+From: =?UTF-8?q?Pavel=20B=C5=99ezina?= <pbrezina@redhat.com>
+Date: Wed, 27 Feb 2013 12:12:19 +0100
+Subject: [PATCH] autofs: fix invalid header 'number of entries' in packet
+
+https://fedorahosted.org/sssd/ticket/1739
+
+Pointer to packet body may change while filling packet with autofs
+mount points. As a consequence, we sometimes wrote the number of
+entries into invalid body and we recieved an arbitrary number
+on the client side.
+
+If the number was 0, there were some skipped entries. If the number
+was greater than 0, everything worked correctly, because we iterate
+through the cached entries until we reach packet length - we don't
+compare to the number.
+---
+ src/responder/autofs/autofssrv_cmd.c | 6 +++++-
+ 1 file changed, 5 insertions(+), 1 deletion(-)
+
+diff --git a/src/responder/autofs/autofssrv_cmd.c b/src/responder/autofs/autofssrv_cmd.c
+index 550c981a73e40804701268d0b34f8d7198f3ecc6..491afbb1de057dae996cfc7d084cdaed0220b8e3 100644
+--- a/src/responder/autofs/autofssrv_cmd.c
++++ b/src/responder/autofs/autofssrv_cmd.c
+@@ -1085,13 +1085,13 @@ getautomntent_process(struct autofs_cmd_ctx *cmdctx,
+         goto done;
+     }
+ 
++    /* allocate memory for number of entries in the packet */
+     ret = sss_packet_grow(client->creq->out, sizeof(uint32_t));
+     if (ret != EOK) {
+         DEBUG(SSSDBG_OP_FAILURE, ("Cannot grow packet\n"));
+         goto done;
+     }
+ 
+-    sss_packet_get_body(client->creq->out, &body, &blen);
+     rp = sizeof(uint32_t);  /* We'll write the number of entries here */
+ 
+     left = map->entry_count - cursor;
+@@ -1111,6 +1111,10 @@ getautomntent_process(struct autofs_cmd_ctx *cmdctx,
+         nentries++;
+     }
+ 
++    /* packet grows in fill_autofs_entry, body pointer may change,
++     * thus we have to obtain it here */
++    sss_packet_get_body(client->creq->out, &body, &blen);
++
+     rp = 0;
+     SAFEALIGN_SET_UINT32(&body[rp], nentries, &rp);
+ 
+-- 
+1.8.1.4
+

sssd.spec

@@ -16,7 +16,7 @@
 
 Name: sssd
 Version: 1.9.4
-Release: 1%{?dist}
+Release: 2%{?dist}
 Group: Applications/System
 Summary: System Security Services Daemon
 License: GPLv3+
@@ -32,6 +32,7 @@ Patch0004:  0004-Add-unit-tests-for-simple-access-test-by-groups.patch
 Patch0005:  0005-Do-not-compile-main-in-DP-if-UNIT_TESTING-is-defined.patch
 Patch0006:  0006-Provide-a-be_get_account_info_send-function.patch
 Patch0007:  0007-Resolve-GIDs-in-the-simple-access-provider.patch
+Patch0008:  0008-autofs-fix-invalid-header-number-of-entries-in-packe.patch
 
 ### Dependencies ###
 
@@ -529,6 +530,9 @@ fi
 %postun -n libsss_sudo -p /sbin/ldconfig
 
 %changelog
+* Thu Mar 28 2013 Jakub Hrozek <jhrozek@redhat.com> - 1.9.4-2
+- autofs: return the correct number of maps to the client
+
 * Mon Mar 25 2013 Jakub Hrozek <jhrozek@redhat.com> - 1.9.4-1
 - New upstream release 1.9.4
 - https://fedorahosted.org/sssd/wiki/Releases/Notes-1.9.4