Delete legacy library libqtaguid
The library has been replaced by BPF solution. No any valid user is
using this.
Bug: N/A
Test: m
Change-Id: If14ff29859b06feb5cd7d4ebed9f83ab146ea9e4
diff --git a/libqtaguid/Android.bp b/libqtaguid/Android.bp
deleted file mode 100644
index 64db095..0000000
--- a/libqtaguid/Android.bp
+++ /dev/null
@@ -1,60 +0,0 @@
-//
-// Copyright (C) 2017 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.
-//
-
-package {
- default_applicable_licenses: ["Android-Apache-2.0"],
-}
-
-cc_library_headers {
- name: "libqtaguid_headers",
- vendor_available: false,
- host_supported: false,
- export_include_dirs: ["include"],
- target: {
- linux_bionic: {
- enabled: true,
- },
- },
-}
-
-cc_library {
- name: "libqtaguid",
- vendor_available: false,
- host_supported: false,
- target: {
- android: {
- srcs: [
- "qtaguid.c",
- ],
- sanitize: {
- misc_undefined: ["integer"],
- },
- },
- },
-
- shared_libs: ["liblog"],
- header_libs: [
- "libqtaguid_headers",
- ],
- export_header_lib_headers: ["libqtaguid_headers"],
- local_include_dirs: ["include"],
-
- cflags: [
- "-Werror",
- "-Wall",
- "-Wextra",
- ],
-}
diff --git a/libqtaguid/include/qtaguid/qtaguid.h b/libqtaguid/include/qtaguid/qtaguid.h
deleted file mode 100644
index 72285e5..0000000
--- a/libqtaguid/include/qtaguid/qtaguid.h
+++ /dev/null
@@ -1,62 +0,0 @@
-/*
- * 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 __LEGACY_QTAGUID_H
-#define __LEGACY_QTAGUID_H
-
-#include <stdint.h>
-#include <sys/types.h>
-#include <unistd.h>
-
-#ifdef __cplusplus
-extern "C" {
-#endif
-
-/*
- * Set tags (and owning UIDs) for network sockets. The socket must be untagged
- * by calling qtaguid_untagSocket() before closing it, otherwise the qtaguid
- * module will keep a reference to it even after close.
- */
-extern int legacy_tagSocket(int sockfd, int tag, uid_t uid);
-
-/*
- * Untag a network socket before closing.
- */
-extern int legacy_untagSocket(int sockfd);
-
-/*
- * For the given uid, switch counter sets.
- * The kernel only keeps a limited number of sets.
- * 2 for now.
- */
-extern int legacy_setCounterSet(int counterSetNum, uid_t uid);
-
-/*
- * Delete all tag info that relates to the given tag an uid.
- * If the tag is 0, then ALL info about the uid is freeded.
- * The delete data also affects active tagged socketd, which are
- * then untagged.
- * The calling process can only operate on its own tags.
- * Unless it is part of the happy AID_NET_BW_ACCT group.
- * In which case it can clobber everything.
- */
-extern int legacy_deleteTagData(int tag, uid_t uid);
-
-#ifdef __cplusplus
-}
-#endif
-
-#endif /* __LEGACY_QTAGUID_H */
diff --git a/libqtaguid/qtaguid.c b/libqtaguid/qtaguid.c
deleted file mode 100644
index cd38bad..0000000
--- a/libqtaguid/qtaguid.c
+++ /dev/null
@@ -1,143 +0,0 @@
-/*
-** 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_NDEBUG 0
-
-#define LOG_TAG "qtaguid"
-
-#include <errno.h>
-#include <fcntl.h>
-#include <inttypes.h>
-#include <pthread.h>
-#include <stdio.h>
-#include <string.h>
-#include <unistd.h>
-
-#include <log/log.h>
-#include <qtaguid/qtaguid.h>
-
-static const char* CTRL_PROCPATH = "/proc/net/xt_qtaguid/ctrl";
-static const int CTRL_MAX_INPUT_LEN = 128;
-
-/*
- * One per proccess.
- * Once the device is open, this process will have its socket tags tracked.
- * And on exit or untimely death, all socket tags will be removed.
- * A process can only open /dev/xt_qtaguid once.
- * It should not close it unless it is really done with all the socket tags.
- * Failure to open it will be visible when socket tagging will be attempted.
- */
-static int resTrackFd = -1;
-pthread_once_t resTrackInitDone = PTHREAD_ONCE_INIT;
-
-/* Only call once per process. */
-void legacy_resTrack(void) {
- resTrackFd = TEMP_FAILURE_RETRY(open("/dev/xt_qtaguid", O_RDONLY | O_CLOEXEC));
-}
-
-/*
- * Returns:
- * 0 on success.
- * -errno on failure.
- */
-static int write_ctrl(const char* cmd) {
- int fd, res, savedErrno;
-
- ALOGV("write_ctrl(%s)", cmd);
-
- fd = TEMP_FAILURE_RETRY(open(CTRL_PROCPATH, O_WRONLY | O_CLOEXEC));
- if (fd < 0) {
- return -errno;
- }
-
- res = TEMP_FAILURE_RETRY(write(fd, cmd, strlen(cmd)));
- if (res < 0) {
- savedErrno = errno;
- } else {
- savedErrno = 0;
- }
- if (res < 0) {
- // ALOGV is enough because all the callers also log failures
- ALOGV("Failed write_ctrl(%s) res=%d errno=%d", cmd, res, savedErrno);
- }
- close(fd);
- return -savedErrno;
-}
-
-int legacy_tagSocket(int sockfd, int tag, uid_t uid) {
- char lineBuf[CTRL_MAX_INPUT_LEN];
- int res;
- uint64_t kTag = ((uint64_t)tag << 32);
-
- pthread_once(&resTrackInitDone, legacy_resTrack);
-
- snprintf(lineBuf, sizeof(lineBuf), "t %d %" PRIu64 " %d", sockfd, kTag, uid);
-
- ALOGV("Tagging socket %d with tag %" PRIx64 "{%u,0} for uid %d", sockfd, kTag, tag, uid);
-
- res = write_ctrl(lineBuf);
- if (res < 0) {
- ALOGI("Tagging socket %d with tag %" PRIx64 "(%d) for uid %d failed errno=%d", sockfd, kTag,
- tag, uid, res);
- }
-
- return res;
-}
-
-int legacy_untagSocket(int sockfd) {
- char lineBuf[CTRL_MAX_INPUT_LEN];
- int res;
-
- ALOGV("Untagging socket %d", sockfd);
-
- snprintf(lineBuf, sizeof(lineBuf), "u %d", sockfd);
- res = write_ctrl(lineBuf);
- if (res < 0) {
- ALOGI("Untagging socket %d failed errno=%d", sockfd, res);
- }
-
- return res;
-}
-
-int legacy_setCounterSet(int counterSetNum, uid_t uid) {
- char lineBuf[CTRL_MAX_INPUT_LEN];
- int res;
-
- ALOGV("Setting counters to set %d for uid %d", counterSetNum, uid);
-
- snprintf(lineBuf, sizeof(lineBuf), "s %d %d", counterSetNum, uid);
- res = write_ctrl(lineBuf);
- return res;
-}
-
-int legacy_deleteTagData(int tag, uid_t uid) {
- char lineBuf[CTRL_MAX_INPUT_LEN];
- int cnt = 0, res = 0;
- uint64_t kTag = (uint64_t)tag << 32;
-
- ALOGV("Deleting tag data with tag %" PRIx64 "{%d,0} for uid %d", kTag, tag, uid);
-
- pthread_once(&resTrackInitDone, legacy_resTrack);
-
- snprintf(lineBuf, sizeof(lineBuf), "d %" PRIu64 " %d", kTag, uid);
- res = write_ctrl(lineBuf);
- if (res < 0) {
- ALOGI("Deleting tag data with tag %" PRIx64 "/%d for uid %d failed with cnt=%d errno=%d",
- kTag, tag, uid, cnt, errno);
- }
-
- return res;
-}