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      1 /*
      2  * Copyright (C) 2014 The Android Open Source Project
      3  *
      4  * Licensed under the Apache License, Version 2.0 (the "License");
      5  * you may not use this file except in compliance with the License.
      6  * You may obtain a copy of the License at
      7  *
      8  *      http://www.apache.org/licenses/LICENSE-2.0
      9  *
     10  * Unless required by applicable law or agreed to in writing, software
     11  * distributed under the License is distributed on an "AS IS" BASIS,
     12  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
     13  * See the License for the specific language governing permissions and
     14  * limitations under the License.
     15  */
     16 
     17 #ifndef _LOGD_LOG_WHITE_BLACK_LIST_H__
     18 #define _LOGD_LOG_WHITE_BLACK_LIST_H__
     19 
     20 #include <sys/types.h>
     21 
     22 #include <string.h>
     23 #include <list>
     24 
     25 #include "LogBufferElement.h"
     26 
     27 // White and Blacklist
     28 
     29 class Prune {
     30     friend class PruneList;
     31 
     32     const uid_t mUid;
     33     const pid_t mPid;
     34     int cmp(uid_t uid, pid_t pid) const;
     35 
     36    public:
     37     static const uid_t uid_all = (uid_t)-1;
     38     static const pid_t pid_all = (pid_t)-1;
     39 
     40     Prune(uid_t uid, pid_t pid);
     41 
     42     uid_t getUid() const {
     43         return mUid;
     44     }
     45     pid_t getPid() const {
     46         return mPid;
     47     }
     48 
     49     int cmp(LogBufferElement* e) const {
     50         return cmp(e->getUid(), e->getPid());
     51     }
     52 
     53     std::string format();
     54 };
     55 
     56 typedef std::list<Prune> PruneCollection;
     57 
     58 class PruneList {
     59     PruneCollection mNaughty;
     60     PruneCollection mNice;
     61     bool mWorstUidEnabled;
     62     bool mWorstPidOfSystemEnabled;
     63 
     64    public:
     65     PruneList();
     66     ~PruneList();
     67 
     68     int init(const char* str);
     69 
     70     bool naughty(LogBufferElement* element);
     71     bool naughty(void) {
     72         return !mNaughty.empty();
     73     }
     74     bool nice(LogBufferElement* element);
     75     bool nice(void) {
     76         return !mNice.empty();
     77     }
     78     bool worstUidEnabled() const {
     79         return mWorstUidEnabled;
     80     }
     81     bool worstPidOfSystemEnabled() const {
     82         return mWorstPidOfSystemEnabled;
     83     }
     84 
     85     std::string format();
     86 };
     87 
     88 #endif  // _LOGD_LOG_WHITE_BLACK_LIST_H__
     89