【笔记】android 系统常用user id列表
2024-05-17 01:58:48
android有些系统常用用户，例如root, system, shell, wifi,radio的用户ID都是在代码里提前定义好了。例如system的uid是1000
include/private/android_filesystem_config.h
/** Copyright (C) 2007 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.*/
/* This file is used to define the properties of the filesystem
** images generated by build tools (mkbootfs and mkyaffs2image) and
** by the device side of adb.
*/
#ifndef _ANDROID_FILESYSTEM_CONFIG_H_
#define _ANDROID_FILESYSTEM_CONFIG_H_
#include <sys/cdefs.h>
#include <sys/types.h>
#include <stdint.h>
#if defined(__ANDROID__)
#include <linux/capability.h>
#else
#include "android_filesystem_capability.h"
#endif
#define CAP_MASK_LONG(cap_name) (1ULL << (cap_name))
/* This is the master Users and Groups config for the platform.* DO NOT EVER RENUMBER*/
#define AID_ROOT 0 /* traditional unix root user */
#define AID_SYSTEM 1000 /* system server */
#define AID_RADIO 1001 /* telephony subsystem, RIL */
#define AID_BLUETOOTH 1002 /* bluetooth subsystem */
#define AID_GRAPHICS 1003 /* graphics devices */
#define AID_INPUT 1004 /* input devices */
#define AID_AUDIO 1005 /* audio devices */
#define AID_CAMERA 1006 /* camera devices */
#define AID_LOG 1007 /* log devices */
#define AID_COMPASS 1008 /* compass device */
#define AID_MOUNT 1009 /* mountd socket */
#define AID_WIFI 1010 /* wifi subsystem */
#define AID_ADB 1011 /* android debug bridge (adbd) */
#define AID_INSTALL 1012 /* group for installing packages */
#define AID_MEDIA 1013 /* mediaserver process */
#define AID_DHCP 1014 /* dhcp client */
#define AID_SDCARD_RW 1015 /* external storage write access */
#define AID_VPN 1016 /* vpn system */
#define AID_KEYSTORE 1017 /* keystore subsystem */
#define AID_USB 1018 /* USB devices */
#define AID_DRM 1019 /* DRM server */
#define AID_MDNSR 1020 /* MulticastDNSResponder (service discovery) */
#define AID_GPS 1021 /* GPS daemon */
#define AID_UNUSED1 1022 /* deprecated, DO NOT USE */
#define AID_MEDIA_RW 1023 /* internal media storage write access */
#define AID_MTP 1024 /* MTP USB driver access */
#define AID_UNUSED2 1025 /* deprecated, DO NOT USE */
#define AID_DRMRPC 1026 /* group for drm rpc */
#define AID_NFC 1027 /* nfc subsystem */
#define AID_SDCARD_R 1028 /* external storage read access */
#define AID_CLAT 1029 /* clat part of nat464 */
#define AID_LOOP_RADIO 1030 /* loop radio devices */
#define AID_MEDIA_DRM 1031 /* MediaDrm plugins */
#define AID_PACKAGE_INFO 1032 /* access to installed package details */
#define AID_SDCARD_PICS 1033 /* external storage photos access */
#define AID_SDCARD_AV 1034 /* external storage audio/video access */
#define AID_SDCARD_ALL 1035 /* access all users external storage */
#define AID_LOGD 1036 /* log daemon */
#define AID_SHARED_RELRO 1037 /* creator of shared GNU RELRO files */
#define AID_DBUS 1038 /* dbus-daemon IPC broker process */
#define AID_TLSDATE 1039 /* tlsdate unprivileged user */
#define AID_MEDIA_EX 1040 /* mediaextractor process */
#define AID_AUDIOSERVER 1041 /* audioserver process */
#define AID_METRICS_COLL 1042 /* metrics_collector process */
#define AID_METRICSD 1043 /* metricsd process */
#define AID_WEBSERV 1044 /* webservd process */
#define AID_DEBUGGERD 1045 /* debuggerd unprivileged user */
#define AID_MEDIA_CODEC 1046 /* mediacodec process */
#define AID_CAMERASERVER 1047 /* cameraserver process */
#define AID_FIREWALL 1048 /* firewalld process */
#define AID_TRUNKS 1049 /* trunksd process (TPM daemon) */
#define AID_NVRAM 1050 /* Access-controlled NVRAM */
#define AID_DNS 1051 /* DNS resolution daemon (system: netd) */
#define AID_DNS_TETHER 1052 /* DNS resolution daemon (tether: dnsmasq) */
/* Changes to this file must be made in AOSP, *not* in internal branches. */
#define AID_SHELL 2000 /* adb and debug shell user */
#define AID_CACHE 2001 /* cache access */
#define AID_DIAG 2002 /* access to diagnostic resources */
/* The range 2900-2999 is reserved for OEM, and must never be* used here */
#define AID_OEM_RESERVED_START 2900
#define AID_OEM_RESERVED_END 2999
/* The 3000 series are intended for use as supplemental group id's only.* They indicate special Android capabilities that the kernel is aware of. */
#define AID_NET_BT_ADMIN 3001 /* bluetooth: create any socket */
#define AID_NET_BT 3002 /* bluetooth: create sco, rfcomm or l2cap sockets */
#define AID_INET 3003 /* can create AF_INET and AF_INET6 sockets */
#define AID_NET_RAW 3004 /* can create raw INET sockets */
#define AID_NET_ADMIN 3005 /* can configure interfaces and routing tables. */
#define AID_NET_BW_STATS 3006 /* read bandwidth statistics */
#define AID_NET_BW_ACCT 3007 /* change bandwidth statistics accounting */
#define AID_NET_BT_STACK 3008 /* bluetooth: access config files */
#define AID_READPROC 3009 /* Allow /proc read access */
#define AID_WAKELOCK 3010 /* Allow system wakelock read/write access */
/* The range 5000-5999 is also reserved for OEM, and must never be used here. */
#define AID_OEM_RESERVED_2_START 5000
#define AID_OEM_RESERVED_2_END 5999
#define AID_EVERYBODY 9997 /* shared between all apps in the same profile */
#define AID_MISC 9998 /* access to misc storage */
#define AID_NOBODY 9999
#define AID_APP 10000 /* first app user */
#define AID_ISOLATED_START 99000 /* start of uids for fully isolated sandboxed processes */
#define AID_ISOLATED_END 99999 /* end of uids for fully isolated sandboxed processes */
#define AID_USER 100000 /* offset for uid ranges for each user */
#define AID_SHARED_GID_START 50000 /* start of gids for apps in each user to share */
#define AID_SHARED_GID_END 59999 /* start of gids for apps in each user to share */
#if !defined(EXCLUDE_FS_CONFIG_STRUCTURES)
/** Used in:* bionic/libc/bionic/stubs.cpp* external/libselinux/src/android.c* system/core/logd/LogStatistics.cpp* system/core/init/ueventd.cpp* system/core/init/util.cpp*/
struct android_id_info {const char *name;unsigned aid;
};
static const struct android_id_info android_ids[] = {{ "root", AID_ROOT, },{ "system", AID_SYSTEM, },{ "radio", AID_RADIO, },{ "bluetooth", AID_BLUETOOTH, },{ "graphics", AID_GRAPHICS, },{ "input", AID_INPUT, },{ "audio", AID_AUDIO, },{ "camera", AID_CAMERA, },{ "log", AID_LOG, },{ "compass", AID_COMPASS, },{ "mount", AID_MOUNT, },{ "wifi", AID_WIFI, },{ "adb", AID_ADB, },{ "install", AID_INSTALL, },{ "media", AID_MEDIA, },{ "dhcp", AID_DHCP, },{ "sdcard_rw", AID_SDCARD_RW, },{ "vpn", AID_VPN, },{ "keystore", AID_KEYSTORE, },{ "usb", AID_USB, },{ "drm", AID_DRM, },{ "mdnsr", AID_MDNSR, },{ "gps", AID_GPS, },// AID_UNUSED1{ "media_rw", AID_MEDIA_RW, },{ "mtp", AID_MTP, },// AID_UNUSED2{ "drmrpc", AID_DRMRPC, },{ "nfc", AID_NFC, },{ "sdcard_r", AID_SDCARD_R, },{ "clat", AID_CLAT, },{ "loop_radio", AID_LOOP_RADIO, },{ "mediadrm", AID_MEDIA_DRM, },{ "package_info", AID_PACKAGE_INFO, },{ "sdcard_pics", AID_SDCARD_PICS, },{ "sdcard_av", AID_SDCARD_AV, },{ "sdcard_all", AID_SDCARD_ALL, },{ "logd", AID_LOGD, },{ "shared_relro", AID_SHARED_RELRO, },{ "dbus", AID_DBUS, },{ "tlsdate", AID_TLSDATE, },{ "mediaex", AID_MEDIA_EX, },{ "audioserver", AID_AUDIOSERVER, },{ "metrics_coll", AID_METRICS_COLL },{ "metricsd", AID_METRICSD },{ "webserv", AID_WEBSERV },{ "debuggerd", AID_DEBUGGERD, },{ "mediacodec", AID_MEDIA_CODEC, },{ "cameraserver", AID_CAMERASERVER, },{ "firewall", AID_FIREWALL, },{ "trunks", AID_TRUNKS, },{ "nvram", AID_NVRAM, },{ "dns", AID_DNS, },{ "dns_tether", AID_DNS_TETHER, },{ "shell", AID_SHELL, },{ "cache", AID_CACHE, },{ "diag", AID_DIAG, },{ "net_bt_admin", AID_NET_BT_ADMIN, },{ "net_bt", AID_NET_BT, },{ "inet", AID_INET, },{ "net_raw", AID_NET_RAW, },{ "net_admin", AID_NET_ADMIN, },{ "net_bw_stats", AID_NET_BW_STATS, },{ "net_bw_acct", AID_NET_BW_ACCT, },{ "net_bt_stack", AID_NET_BT_STACK, },{ "readproc", AID_READPROC, },{ "wakelock", AID_WAKELOCK, },{ "everybody", AID_EVERYBODY, },{ "misc", AID_MISC, },{ "nobody", AID_NOBODY, },
};
#define android_id_count \(sizeof(android_ids) / sizeof(android_ids[0]))
struct fs_path_config {unsigned mode;unsigned uid;unsigned gid;uint64_t capabilities;const char *prefix;
};
/* Rules for directories and files has moved to system/code/libcutils/fs_config.c */
__BEGIN_DECLS
/** Used in:* build/tools/fs_config/fs_config.c* build/tools/fs_get_stats/fs_get_stats.c* system/extras/ext4_utils/make_ext4fs_main.c* external/squashfs-tools/squashfs-tools/android.c* system/core/cpio/mkbootfs.c* system/core/adb/file_sync_service.cpp* system/extras/ext4_utils/canned_fs_config.c*/
void fs_config(const char *path, int dir, const char *target_out_path,unsigned *uid, unsigned *gid, unsigned *mode, uint64_t *capabilities);
ssize_t fs_config_generate(char *buffer, size_t length, const struct fs_path_config *pc);
__END_DECLS
#endif
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