1 /* 2 * Copyright (C) 2017 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 __CUTILS_QTAGUID_H 18 #define __CUTILS_QTAGUID_H 19 20 #include <sys/types.h> 21 22 #ifdef __cplusplus 23 extern "C" { 24 #endif 25 26 /* 27 * Set tags (and owning UIDs) for network sockets. 28 */ 29 extern int qtaguid_tagSocket(int sockfd, int tag, uid_t uid); 30 31 /* 32 * Untag a network socket before closing. 33 */ 34 extern int qtaguid_untagSocket(int sockfd); 35 36 /* 37 * For the given uid, switch counter sets. 38 * The kernel only keeps a limited number of sets. 39 * 2 for now. 40 */ 41 extern int qtaguid_setCounterSet(int counterSetNum, uid_t uid); 42 43 /* 44 * Delete all tag info that relates to the given tag an uid. 45 * If the tag is 0, then ALL info about the uid is freed. 46 * The delete data also affects active tagged sockets, which are 47 * then untagged. 48 * The calling process can only operate on its own tags. 49 * Unless it is part of the happy AID_NET_BW_ACCT group. 50 * In which case it can clobber everything. 51 */ 52 extern int qtaguid_deleteTagData(int tag, uid_t uid); 53 54 /* 55 * Enable/disable qtaguid functionnality at a lower level. 56 * When pacified, the kernel will accept commands but do nothing. 57 */ 58 extern int qtaguid_setPacifier(int on); 59 60 #ifdef __cplusplus 61 } 62 #endif 63 64 #endif /* __CUTILS_QTAG_UID_H */ 65