commit 083b037c0740ca00f72429e4457bfdd4b4d4dfa7
author Mark Salyzyn <salyzyn@google.com> Fri Dec 04 10:59:45 2015 -0800
committer Mark Salyzyn <salyzyn@google.com> Tue Dec 08 16:46:29 2015 -0800
tree 6748f9f8bcaebd495df77604dfeba68e0b65b5be
parent cb3e6ef15459388fc8fee2b4a3157ff0eac0714a

logd: liblog: logcat: Add LOG_ID_SECURITY

- Largish commit, buffer and access controls done together
- Add LOG_ID_SECURITY binary content log
- Add "default" meta buffer
- allow LOG_ID_SECURITY only from AID_SYSTEM and AID_ROOT UID & GID
- Use __android_log_security() to gate logging
- Add __android_log_security_bwrite() native access to security
  logging.
- Add liblog.__security_buffer end-to-end gTest

Bug: 26029733
Change-Id: Ibcf5b4660c17c1aa6902c0d93f8ffd29c93d9a93

logd/LogStatistics.cpp

diff --git a/logd/LogStatistics.cpp b/logd/LogStatistics.cpp
index 416edd8..bf0e30b 100644
--- a/logd/LogStatistics.cpp
+++ b/logd/LogStatistics.cpp
@@ -85,7 +85,11 @@
 
     uint32_t tag = element->getTag();
     if (tag) {
-        tagTable.add(tag, element);
+        if (log_id == LOG_ID_SECURITY) {
+            securityTagTable.add(tag, element);
+        } else {
+            tagTable.add(tag, element);
+        }
     }
 }
 
@@ -113,7 +117,11 @@
 
     uint32_t tag = element->getTag();
     if (tag) {
-        tagTable.subtract(tag, element);
+        if (log_id == LOG_ID_SECURITY) {
+            securityTagTable.subtract(tag, element);
+        } else {
+            tagTable.subtract(tag, element);
+        }
     }
 }
 
@@ -468,6 +476,11 @@
         output += tagTable.format(*this, uid, name, LOG_ID_EVENTS);
     }
 
+    if (enable && (logMask & (1 << LOG_ID_SECURITY))) {
+        name = "Chattiest security log buffer TAGs:";
+        output += securityTagTable.format(*this, uid, name, LOG_ID_SECURITY);
+    }
+
     return output;
 }