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Add communication support for xt_qtaguid(network traffic accounting) kernel module.

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Change-Id: Ie0fb5b593987c53ee6f906fe6e0caab5a581d5a1
This commit is contained in:
Ashish Sharma 2011-07-07 18:16:01 -07:00
parent 6b06f9f48d
commit 8626cce5f3
3 changed files with 82 additions and 1 deletions
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36
include/cutils/qtaguid.h Normal file
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@ -0,0 +1,36 @@
/*
* Copyright (C) 2011 The Android Open Source Project
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
#ifndef __CUTILS_QTAGUID_H
#define __CUTILS_QTAGUID_H
#include <stdint.h>
#include <sys/types.h>
#ifdef __cplusplus
extern "C" {
#endif
/*
* Set tags (and owning UIDs) for network sockets.
*/
extern int set_qtaguid(int sockfd, int tag, uid_t uid);
#ifdef __cplusplus
}
#endif
#endif /* __CUTILS_QTAG_UID_H */

3
libcutils/Android.mk
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@ -48,7 +48,8 @@ commonSources := \
threads.c \
sched_policy.c \
iosched_policy.c \
str_parms.c
str_parms.c \
qtaguid.c
commonHostSources := \
ashmem-host.c

44
libcutils/qtaguid.c Normal file
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/* libcutils/qtaguid.c
**
** Copyright 2011, The Android Open Source Project
**
** Licensed under the Apache License, Version 2.0 (the "License");
** you may not use this file except in compliance with the License.
** You may obtain a copy of the License at
**
** http://www.apache.org/licenses/LICENSE-2.0
**
** Unless required by applicable law or agreed to in writing, software
** distributed under the License is distributed on an "AS IS" BASIS,
** WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
** See the License for the specific language governing permissions and
** limitations under the License.
*/
#define LOG_TAG "qtaguid"
#include <cutils/qtaguid.h>
#include <cutils/log.h>
#include <fcntl.h>
#include <stdio.h>
#include <string.h>
#include <unistd.h>
extern int set_qtaguid(int sockfd, int tag, uid_t uid) {
char lineBuf[128];
int fd, cnt = 0;
uint64_t kTag = (uint64_t)tag << 32;
snprintf(lineBuf, sizeof(lineBuf), "t %d %llu %d", sockfd, kTag, uid);
LOGV("Tagging Socket with command %s\n", lineBuf);
/* TODO: Enable after the kernel module is fixed.
fd = open("/proc/net/xt_qtaguid/ctrl", O_WRONLY);
if (fd < 0) {
return -1;
}
cnt = write(fd, lineBuf, strlen(lineBuf));
close(fd);
*/
return (cnt>0?0:-1);
}