[SSSD] [PATCH] LDAP: Do not print verbose DEBUG messages from providers that don't set UUID

Sumit Bose sbose at redhat.com
Thu Jun 4 07:07:28 UTC 2015


On Wed, Jun 03, 2015 at 06:29:01PM +0200, Lukas Slebodnik wrote:
> On (03/06/15 18:21), Jakub Hrozek wrote:
> >On Wed, Jun 03, 2015 at 06:13:04PM +0200, Lukas Slebodnik wrote:
> >> On (03/06/15 17:58), Jakub Hrozek wrote:
> >> >I think ENOENT in this case is better because the caller might (and
> >> >does) special-case the value to handle "no UUID" case separately.
> >> 
> >> >From 762d47583e799bb956564ead9418a64a8dd494e1 Mon Sep 17 00:00:00 2001
> >> >From: Jakub Hrozek <jhrozek at redhat.com>
> >> >Date: Wed, 3 Jun 2015 17:57:29 +0200
> >> >Subject: [PATCH] LDAP: Do not print verbose DEBUG messages from providers that
> >>                   ^^^^
> >>                  changes are in sydb and not in LDAP
> >> > don't set UUID
> >> >
> >> >https://fedorahosted.org/sssd/ticket/2666
> >> >---
> >> > src/db/sysdb_ops.c | 7 ++++++-
> >> > 1 file changed, 6 insertions(+), 1 deletion(-)
> >> >
> >> >diff --git a/src/db/sysdb_ops.c b/src/db/sysdb_ops.c
> >> >index 9afb0d7d74cdbc91570f4fe6485790d2a4eeb4be..d34583787f1fce9bd07e272ae7549b8bd4f0b7dd 100644
> >> >--- a/src/db/sysdb_ops.c
> >> >+++ b/src/db/sysdb_ops.c
> >> >@@ -3795,7 +3795,12 @@ errno_t sysdb_handle_original_uuid(const char *orig_name,
> >> >     struct ldb_message_element *el;
> >> >     char guid_str_buf[GUID_STR_BUF_SIZE];
> >> > 
> >> >-    if (orig_name == NULL || src_attrs == NULL || src_name == NULL
> >> >+    if (orig_name == NULL) {
> >> >+        /* This provider doesn't handle UUIDs */
> >> >+        return ENOENT;
> >> >+    }
> >> >+
> >> >+    if (src_attrs == NULL || src_name == NULL
> >> >             || dest_attrs == NULL || dest_name == NULL) {
> >> >         return EINVAL;
> >> >     }
> >> 
> >> sh$ ./test_sysdb_utils
> >> [==========] Running 1 test(s).
> >> [ RUN      ] test_sysdb_handle_original_uuid
> >> 0x2 != 0x16
> >> ../sssd/src/tests/cmocka/test_sysdb_utils.c:48: error: Failure!
> >> 
> >> [  FAILED  ] test_sysdb_handle_original_uuid
> >> [==========] 1 test(s) run.
> >> [  PASSED  ] 0 test(s).
> >> [  FAILED  ] 1 test(s), listed below:
> >> [  FAILED  ] test_sysdb_handle_original_uuid
> >> 
> >>  1 FAILED TEST(S)
> >> 
> >
> >Let's try it again.
> 
> >From 9c69b6f3069ab5728de8f0956a4f7d1cc0afba3b Mon Sep 17 00:00:00 2001
> >From: Jakub Hrozek <jhrozek at redhat.com>
> >Date: Wed, 3 Jun 2015 17:57:29 +0200
> >Subject: [PATCH] LDAP: Do not print verbose DEBUG messages from providers that
> > don't set UUID
> >
> >https://fedorahosted.org/sssd/ticket/2666
> >---
> > src/db/sysdb_ops.c                  |  7 ++++++-
> > src/tests/cmocka/test_sysdb_utils.c | 10 +++++++++-
> > 2 files changed, 15 insertions(+), 2 deletions(-)
> >
> >diff --git a/src/db/sysdb_ops.c b/src/db/sysdb_ops.c
> >index 9afb0d7d74cdbc91570f4fe6485790d2a4eeb4be..d34583787f1fce9bd07e272ae7549b8bd4f0b7dd 100644
> >--- a/src/db/sysdb_ops.c
> >+++ b/src/db/sysdb_ops.c
> >@@ -3795,7 +3795,12 @@ errno_t sysdb_handle_original_uuid(const char *orig_name,
> >     struct ldb_message_element *el;
> >     char guid_str_buf[GUID_STR_BUF_SIZE];
> > 
> >-    if (orig_name == NULL || src_attrs == NULL || src_name == NULL
> >+    if (orig_name == NULL) {
> >+        /* This provider doesn't handle UUIDs */
> >+        return ENOENT;
> >+    }
> >+
> >+    if (src_attrs == NULL || src_name == NULL
> >             || dest_attrs == NULL || dest_name == NULL) {
> >         return EINVAL;
> >     }
> >diff --git a/src/tests/cmocka/test_sysdb_utils.c b/src/tests/cmocka/test_sysdb_utils.c
> >index 1e9baa88cd82e7631a1de3db7f567f1f050ca67b..b791f14b7fdfdd4e55343fc1c03a7fd55d8ed101 100644
> >--- a/src/tests/cmocka/test_sysdb_utils.c
> >+++ b/src/tests/cmocka/test_sysdb_utils.c
> >@@ -45,7 +45,7 @@ static void test_sysdb_handle_original_uuid(void **state)
> >     struct ldb_val guid_val = {bin_guid, 16};
> > 
> >     ret = sysdb_handle_original_uuid(NULL, NULL, NULL, NULL, NULL);
> >-    assert_int_equal(ret, EINVAL);
> >+    assert_int_equal(ret, ENOENT);
> > 
> >     src_attrs = sysdb_new_attrs(NULL);
> >     assert_non_null(src_attrs);
> >@@ -63,6 +63,14 @@ static void test_sysdb_handle_original_uuid(void **state)
> >     ret = sysdb_attrs_add_string(src_attrs, "UUID", IPA_UUID);
> >     assert_int_equal(ret, EOK);
> > 
> >+    ret = sysdb_handle_original_uuid(NULL, src_attrs, "GUID",
> >+                                     dest_attrs, "def");
> >+    assert_int_equal(ret, ENOENT);
> >+
> >+    ret = sysdb_handle_original_uuid("objectGUID", NULL, "GUID",
> >+                                     dest_attrs, "def");
> >+    assert_int_equal(ret, EINVAL);
> >+
> >     ret = sysdb_handle_original_uuid("objectGUID", src_attrs, "GUID",
> >                                      dest_attrs, "def");
> >     assert_int_equal(ret, EOK);
> 
> Patch works as expected.
> 
> I have a slightly related question (maybe for Sumit, because he wrote patch)
> Why do we print message if ENOENT is returned?
> 
>     ret = sysdb_handle_original_uuid(
>                                    opts->group_map[SDAP_AT_GROUP_UUID].def_name,
>                                    attrs,
>                                    opts->group_map[SDAP_AT_GROUP_UUID].sys_name,
>                                    group_attrs, SYSDB_UUID);
>     if (ret != EOK) {
>         DEBUG((ret == ENOENT) ? SSSDBG_TRACE_ALL : SSSDBG_MINOR_FAILURE,
>               "Failed to retrieve UUID [%d][%s].\n", ret, sss_strerror(ret));
>     }
> 
> 
> Would it be better to have next version?
>     if (ret != EOK && ret != ENOENT) {
>         DEBUG(SSSDBG_MINOR_FAILURE,
>               "Failed to retrieve UUID [%d][%s].\n", ret, sss_strerror(ret));
>     }
> 
> because if the provider does not handle UUIDs
> then we needn't print message at all.

The intention was mainly to help debugging issues where e.g. the LDAP
provider was used against AD (for whatever reasons) and a wrong
attribute name for the UUID was used. But since afaik the UUID is not
used in the context at all, i.e. it is only saved to the cache, I don't
mind if you prefer to change it.

bye,
Sumit


> 
> LS
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