From d32c0f9afe437afc93062722c927b259acf36e0f Mon Sep 17 00:00:00 2001
From: Daniel P. Berrangé <berrange@redhat.com>
Date: Apr 27 2018 15:26:56 +0000
Subject: Revert "util: virlog: Introduce wildcard to log filters"


This reverts commit 8daa593b0741452a78daea76075254ae7d3c6ab6.

There are two undesirable aspects to the impl

  - Only a bare wildcard is permitted
  - The wildcard match is not performed in the order listed

Reviewed-by: John Ferlan <jferlan@redhat.com>
Signed-off-by: Daniel P. Berrangé <berrange@redhat.com>

---

diff --git a/src/remote/libvirtd.conf b/src/remote/libvirtd.conf
index 7d823cf..9c0080d 100644
--- a/src/remote/libvirtd.conf
+++ b/src/remote/libvirtd.conf
@@ -368,9 +368,7 @@
 # Multiple filters can be defined in a single @filters, they just need to be
 # separated by spaces. Note that libvirt performs "first" match, i.e. if
 # there are concurrent filters, the first one that matches will be applied,
-# given the order in log_filters with the exception of a wildcard filter, since
-# that's only taken into account if no other filter has matched, so
-# "4:* 1:util.pci" and "1:util.pci 4:*" are equivalent definitions.
+# given the order in log_filters.
 #
 # e.g. to only get warning or errors from the remote layer and only errors
 # from the event layer:
diff --git a/src/util/virlog.c b/src/util/virlog.c
index 81a9dc4..5810643 100644
--- a/src/util/virlog.c
+++ b/src/util/virlog.c
@@ -497,38 +497,6 @@ virLogHostnameString(char **rawmsg,
     return 0;
 }
 
-/* virLogFiltersFind:
- * @filters: haystack
- * @nfilters: haystack size
- * @key1: primary string 'needle'
- * @key2: secondary integer 'needle'
- *
- * Performs "first match" search on the input set of filters, using @key1
- * (string) and  @key2 (integer) as primary and secondary keys respectively.
- * Secondary key is only considered if primary key wasn't provided.
- *
- * Returns a pointer to the matched object or NULL if no match was found.
- */
-static virLogFilterPtr
-virLogFiltersFind(virLogFilterPtr *filters,
-                  size_t nfilters,
-                  const char *key1,
-                  unsigned int key2)
-{
-    size_t i;
-
-    if (!key1 && key2 == 0)
-        return NULL;
-
-    for (i = 0; i < nfilters; i++) {
-        if ((key1 && STREQ(key1, filters[i]->match)) ||
-            filters[i]->flags == key2)
-            return filters[i];
-    }
-
-    return NULL;
-}
-
 
 static void
 virLogSourceUpdate(virLogSourcePtr source)
@@ -1441,8 +1409,7 @@ virLogFilterNew(const char *match,
     virLogFilterPtr ret = NULL;
     char *mdup = NULL;
 
-    virCheckFlags(VIR_LOG_STACK_TRACE |
-                  VIR_LOG_WILDCARD, NULL);
+    virCheckFlags(VIR_LOG_STACK_TRACE, NULL);
 
     if (priority < VIR_LOG_DEBUG || priority > VIR_LOG_ERROR) {
         virReportError(VIR_ERR_INVALID_ARG, _("Invalid log priority %d"),
@@ -1561,8 +1528,6 @@ virLogDefineOutputs(virLogOutputPtr *outputs, size_t noutputs)
 int
 virLogDefineFilters(virLogFilterPtr *filters, size_t nfilters)
 {
-    virLogFilterPtr rc;
-
     if (virLogInitialize() < 0)
         return -1;
 
@@ -1570,10 +1535,6 @@ virLogDefineFilters(virLogFilterPtr *filters, size_t nfilters)
     virLogResetFilters();
     virLogFilters = filters;
     virLogNbFilters = nfilters;
-
-    /* if there's a wildcard filter, update default priority */
-    if ((rc = virLogFiltersFind(filters, nfilters, NULL, VIR_LOG_WILDCARD)))
-        virLogDefaultPriority = rc->priority;
     virLogUnlock();
 
     return 0;
@@ -1749,9 +1710,6 @@ virLogParseFilter(const char *src)
         match++;
     }
 
-    if (STREQ(match, "*"))
-        flags |= VIR_LOG_WILDCARD;
-
     /* match string cannot comprise just from a single '+' */
     if (!*match) {
         virReportError(VIR_ERR_INVALID_ARG,
diff --git a/src/util/virlog.h b/src/util/virlog.h
index 07b91f0..8973f83 100644
--- a/src/util/virlog.h
+++ b/src/util/virlog.h
@@ -174,7 +174,6 @@ typedef void (*virLogCloseFunc) (void *data);
 
 typedef enum {
     VIR_LOG_STACK_TRACE = (1 << 0),
-    VIR_LOG_WILDCARD = (1 << 1)
 } virLogFlags;
 
 int virLogGetNbFilters(void);