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/*
* 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.
*/
/*
* This file is consumed by build/tools/fs_config and is used
* for generating various files. Anything #define AID_<name>
* becomes the mapping for getpwnam/getpwuid, etc. The <name>
* field is lowercased.
* For example:
* #define AID_FOO_BAR 6666 becomes a friendly name of "foo_bar"
*
* The above holds true with the exception of:
* mediacodec
* mediaex
* mediadrm
* Whose friendly names do not match the #define statements.
*
* Additionally, AID_OEM_RESERVED_START and AID_OEM_RESERVED_END
* can be used to define reserved OEM ranges used for sanity checks
* during the build process. The rules are, they must end with START/END
* The proper convention is incrementing a number like so:
* AID_OEM_RESERVED_START
* AID_OEM_RESERVED_1_START
* AID_OEM_RESERVED_2_START
* ...
* The same applies to the END.
* They are not required to be in order, but must not overlap each other and
* must define a START and END'ing range. START must be smaller than END.
*/
#ifndef _ANDROID_FILESYSTEM_CONFIG_H_
#define _ANDROID_FILESYSTEM_CONFIG_H_
#include <string.h>
#include <sys/stat.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) */
#define AID_WEBVIEW_ZYGOTE 1053 /* WebView zygote process */
#define AID_VEHICLE_NETWORK 1054 /* Vehicle network service */
#define AID_MEDIA_AUDIO 1055 /* GID for audio files on internal media storage */
#define AID_MEDIA_VIDEO 1056 /* GID for video files on internal media storage */
#define AID_MEDIA_IMAGE 1057 /* GID for image files on internal media storage */
#define AID_TOMBSTONED 1058 /* tombstoned user */
/* Changes to this file must be made in AOSP, *not* in internal branches. */
#define AID_THEMEMAN 1300 /* theme manager */
#define AID_AUDIT 1301 /* audit daemon */
#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
#if !defined(QCOM_LEGACY_UIDS)
#define AID_QCOM_DIAG 2950 /* access to QTI diagnostic resources */
#define AID_RFS 2951 /* Remote Filesystem for peripheral processors */
#define AID_RFS_SHARED 2952 /* Shared files for Remote Filesystem for peripheral processors */
#endif
#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 */
#if defined(QCOM_LEGACY_UIDS)
#define AID_QCOM_ONCRPC 3011 /* can read/write /dev/oncrpc files */
#define AID_QCOM_DIAG 3012 /* can read/write /dev/diag */
#else
#define AID_SENSORS 3011 /* access to /dev/socket/sensor_ctl_socket & QCCI/QCSI */
#define AID_IMS 3012 /* can read/write /dev/socket/imsrtp */
#define AID_RFS_OLD 3013 /* DEPRECATED OLD ID FOR RFS, DO NOT USE */
#define AID_RFS_SHARED_OLD 3014 /* DEPRECATED OLD ID FOR RFS-SHARED */
#endif
/* 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
#if defined(MOTOROLA_UIDS)
#define AID_MOT_OSH 5000 /* OSH */
#define AID_MOT_ACCY 9000 /* access to accessory */
#define AID_MOT_PWRIC 9001 /* power IC */
#define AID_MOT_USB 9002 /* mot usb */
#define AID_MOT_DRM 9003 /* can access DRM resource. */
#define AID_MOT_TCMD 9004 /* mot_tcmd */
#define AID_MOT_SEC_RTC 9005 /* mot cpcap rtc */
#define AID_MOT_TOMBSTONE 9006
#define AID_MOT_TPAPI 9007 /* mot_tpapi */
#define AID_MOT_SECCLKD 9008 /* mot_secclkd */
#define AID_MOT_WHISPER 9009 /* Whisper Protocol access */
#define AID_MOT_CAIF 9010 /* can create CAIF sockets */
#define AID_MOT_DLNA 9011 /* DLNA native */
#endif // MOTOROLA_UIDS
#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 /* TODO: switch users over to AID_APP_START */
#define AID_APP_START 10000 /* first app user */
#define AID_APP_END 19999 /* last app user */
#define AID_CACHE_GID_START 20000 /* start of gids for apps to mark cached data */
#define AID_CACHE_GID_END 29999 /* end of gids for apps to mark cached data */
#define AID_SHARED_GID_START 50000 /* start of gids for apps in each user to share */
#define AID_SHARED_GID_END 59999 /* end of gids for apps in each user to share */
#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 /* TODO: switch users over to AID_USER_OFFSET */
#define AID_USER_OFFSET 100000 /* offset for uid ranges for each user */
/*
* android_ids has moved to pwd/grp functionality.
* If you need to add one, the structure is now
* auto-generated based on the AID_ constraints
* documented at the top of this header file.
* Also see build/tools/fs_config for more details.
*/
#if !defined(EXCLUDE_FS_CONFIG_STRUCTURES)
struct fs_path_config {
unsigned mode;
unsigned uid;
unsigned gid;
uint64_t capabilities;
const char *prefix;
};
/* Rules for directories.
** These rules are applied based on "first match", so they
** should start with the most specific path and work their
** way up to the root.
*/
static const struct fs_path_config android_dirs[] = {
/* SuperSU ramdisk special directories */
{ 00000, AID_ROOT, AID_ROOT, 0, ".subackup" },
{ 00000, AID_ROOT, AID_ROOT, 0, ".sufrp" },
{ 00000, AID_ROOT, AID_ROOT, 0, "boot/.sufrp" },
{ 00771, AID_SYSTEM, AID_SYSTEM, 0, "boot/bt_firmware" },
{ 00500, AID_ROOT, AID_ROOT, 0, "boot/config" },
{ 00771, AID_SYSTEM, AID_SYSTEM, 0, "boot/data" },
{ 00755, AID_ROOT, AID_SYSTEM, 0, "boot/mnt" },
{ 00750, AID_ROOT, AID_SHELL, 0, "boot/sbin" },
{ 00751, AID_ROOT, AID_SDCARD_R, 0, "boot/storage" },
{ 00755, AID_ROOT, AID_SHELL, 0, "boot/vendor" },
{ 00755, AID_ROOT, AID_ROOT, 0, "boot" },
{ 00770, AID_SYSTEM, AID_CACHE, 0, "cache" },
{ 00500, AID_ROOT, AID_ROOT, 0, "config" },
{ 00771, AID_SYSTEM, AID_SYSTEM, 0, "data/app" },
{ 00771, AID_SYSTEM, AID_SYSTEM, 0, "data/app-private" },
{ 00771, AID_SYSTEM, AID_SYSTEM, 0, "data/app-ephemeral" },
{ 00771, AID_ROOT, AID_ROOT, 0, "data/dalvik-cache" },
{ 00771, AID_SYSTEM, AID_SYSTEM, 0, "data/data" },
{ 00771, AID_SHELL, AID_SHELL, 0, "data/local/tmp" },
{ 00771, AID_SHELL, AID_SHELL, 0, "data/local" },
{ 01771, AID_SYSTEM, AID_MISC, 0, "data/misc" },
{ 00770, AID_DHCP, AID_DHCP, 0, "data/misc/dhcp" },
{ 00771, AID_SHARED_RELRO, AID_SHARED_RELRO, 0, "data/misc/shared_relro" },
{ 00775, AID_MEDIA_RW, AID_MEDIA_RW, 0, "data/media" },
{ 00775, AID_MEDIA_RW, AID_MEDIA_RW, 0, "data/media/Music" },
{ 00750, AID_ROOT, AID_SHELL, 0, "data/nativetest" },
{ 00750, AID_ROOT, AID_SHELL, 0, "data/nativetest64" },
{ 00775, AID_ROOT, AID_ROOT, 0, "data/preloads" },
{ 00771, AID_SYSTEM, AID_SYSTEM, 0, "data" },
{ 00755, AID_ROOT, AID_SYSTEM, 0, "mnt" },
{ 00755, AID_ROOT, AID_ROOT, 0, "root" },
{ 00750, AID_ROOT, AID_SHELL, 0, "sbin" },
{ 00751, AID_ROOT, AID_SDCARD_R, 0, "storage" },
{ 00755, AID_ROOT, AID_ROOT, 0, "system/addon.d" },
{ 00755, AID_ROOT, AID_SHELL, 0, "system/bin" },
{ 00755, AID_ROOT, AID_SHELL, 0, "system/vendor" },
{ 00755, AID_ROOT, AID_SHELL, 0, "system/xbin" },
{ 00755, AID_ROOT, AID_ROOT, 0, "system/etc/ppp" },
{ 00755, AID_ROOT, AID_SHELL, 0, "system/etc" },
{ 00755, AID_ROOT, AID_SHELL, 0, "vendor" },
{ 00777, AID_ROOT, AID_ROOT, 0, "sdcard" },
{ 00755, AID_ROOT, AID_ROOT, 0, 0 },
};
/* Rules for files.
** These rules are applied based on "first match", so they
** should start with the most specific path and work their
** way up to the root. Prefixes ending in * denotes wildcard
** and will allow partial matches.
*/
static const struct fs_path_config android_files[] = {
/* Motorola ramdisk special files */
{ 00755, AID_ROOT, AID_ROOT, 0, "init.class_main.sh" },
{ 00400, AID_ROOT, AID_ROOT, 0, "module_hashes" },
{ 00750, AID_ROOT, AID_ROOT, 0, "xbin/qe" },
/* SuperSU ramdisk special files */
{ 00640, AID_ROOT, AID_ROOT, 0, ".subackup/0001_fstab.*" },
{ 00750, AID_ROOT, AID_ROOT, 0, ".subackup/0001_init*" },
{ 00750, AID_ROOT, AID_ROOT, 0, ".subackup/0002_init*" },
{ 00750, AID_ROOT, AID_ROOT, 0, ".subackup/0003_init*" },
{ 00755, AID_ROOT, AID_ROOT, 0, ".sufrp/frp_install" },
{ 00700, AID_ROOT, AID_ROOT, 0, "sbin/launch_daemonsu.sh" },
{ 00750, AID_ROOT, AID_ROOT, 0, "init.environ.rc" },
{ 00750, AID_ROOT, AID_ROOT, 0, "init.rc" },
{ 00750, AID_ROOT, AID_ROOT, 0, "init.supersu.rc" },
{ 00755, AID_ROOT, AID_ROOT, 0, "boot/.sufrp/frp_install" },
{ 00700, AID_ROOT, AID_ROOT, 0, "boot/sbin/launch_daemonsu.sh" },
{ 00750, AID_ROOT, AID_SHELL, 0, "boot/sbin/*" },
{ 00640, AID_ROOT, AID_SHELL, 0, "boot/fstab.*" },
{ 00750, AID_ROOT, AID_ROOT, 0, "boot/init.environ.rc" },
{ 00750, AID_ROOT, AID_ROOT, 0, "boot/init.rc" },
{ 00750, AID_ROOT, AID_ROOT, 0, "boot/init.supersu.rc" },
{ 00750, AID_ROOT, AID_SHELL, 0, "boot/init*" },
{ 00440, AID_ROOT, AID_SHELL, 0, "system/etc/init.goldfish.rc" },
{ 00550, AID_ROOT, AID_SHELL, 0, "system/etc/init.goldfish.sh" },
{ 00550, AID_ROOT, AID_SHELL, 0, "system/etc/init.ril" },
{ 00550, AID_DHCP, AID_SHELL, 0, "system/etc/dhcpcd/dhcpcd-run-hooks" },
{ 00555, AID_ROOT, AID_ROOT, 0, "system/etc/ppp/*" },
{ 00555, AID_ROOT, AID_ROOT, 0, "system/etc/rc.*" },
{ 00440, AID_ROOT, AID_ROOT, 0, "system/etc/recovery.img" },
{ 00755, AID_ROOT, AID_ROOT, 0, "system/addon.d/*" },
{ 00644, AID_SYSTEM, AID_SYSTEM, 0, "data/app/*" },
{ 00644, AID_MEDIA_RW, AID_MEDIA_RW, 0, "data/media/*" },
{ 00644, AID_SYSTEM, AID_SYSTEM, 0, "data/app-private/*" },
{ 00644, AID_SYSTEM, AID_SYSTEM, 0, "data/app-ephemeral/*" },
{ 00644, AID_APP, AID_APP, 0, "data/data/*" },
{ 00640, AID_ROOT, AID_SHELL, 0, "data/nativetest/tests.txt" },
{ 00640, AID_ROOT, AID_SHELL, 0, "data/nativetest64/tests.txt" },
{ 00750, AID_ROOT, AID_SHELL, 0, "data/nativetest/*" },
{ 00750, AID_ROOT, AID_SHELL, 0, "data/nativetest64/*" },
/* CM's daemonized su doesn't need the setuid bit */
{ 00755, AID_ROOT, AID_SHELL, 0, "system/xbin/su" },
/* the following files are INTENTIONALLY set-uid, but they
* are NOT included on user builds. */
{ 06755, AID_ROOT, AID_ROOT, 0, "system/xbin/procmem" },
/* the following files have enhanced capabilities and ARE included in user builds. */
{ 00550, AID_LOGD, AID_LOGD, CAP_MASK_LONG(CAP_SYSLOG) |
CAP_MASK_LONG(CAP_AUDIT_CONTROL) |
CAP_MASK_LONG(CAP_SETGID),
"system/bin/logd" },
{ 00750, AID_ROOT, AID_SHELL, CAP_MASK_LONG(CAP_SETUID) |
CAP_MASK_LONG(CAP_SETGID),
"system/bin/run-as" },
{ 00700, AID_SYSTEM, AID_SHELL, CAP_MASK_LONG(CAP_BLOCK_SUSPEND),
"system/bin/inputflinger" },
/* Support FIFO scheduling mode in SurfaceFlinger. */
{ 00755, AID_SYSTEM, AID_GRAPHICS, CAP_MASK_LONG(CAP_SYS_NICE),
"system/bin/surfaceflinger" },
/* Support hostapd administering a network interface. */
{ 00755, AID_WIFI, AID_WIFI, CAP_MASK_LONG(CAP_NET_ADMIN) |
CAP_MASK_LONG(CAP_NET_RAW),
"system/bin/hostapd" },
/* Support wifi_hal_legacy administering a network interface. */
{ 00755, AID_WIFI, AID_WIFI, CAP_MASK_LONG(CAP_NET_ADMIN) |
CAP_MASK_LONG(CAP_NET_RAW),
"system/bin/hw/android.hardware.wifi@1.0-service" },
/* A non-privileged zygote that spawns isolated processes for web rendering. */
{ 0750, AID_ROOT, AID_ROOT, CAP_MASK_LONG(CAP_SETUID) |
CAP_MASK_LONG(CAP_SETGID) |
CAP_MASK_LONG(CAP_SETPCAP),
"system/bin/webview_zygote32" },
{ 0750, AID_ROOT, AID_ROOT, CAP_MASK_LONG(CAP_SETUID) |
CAP_MASK_LONG(CAP_SETGID) |
CAP_MASK_LONG(CAP_SETPCAP),
"system/bin/webview_zygote64" },
{ 00755, AID_ROOT, AID_SHELL, 0, "system/bin/crash_dump32" },
{ 00755, AID_ROOT, AID_SHELL, 0, "system/bin/crash_dump64" },
{ 00755, AID_ROOT, AID_SHELL, 0, "system/bin/debuggerd" },
{ 00750, AID_ROOT, AID_ROOT, 0, "system/bin/uncrypt" },
{ 00750, AID_ROOT, AID_ROOT, 0, "system/bin/install-recovery.sh" },
{ 00755, AID_ROOT, AID_SHELL, 0, "system/bin/*" },
{ 00755, AID_ROOT, AID_SHELL, 0, "system/etc/init.d/*" },
{ 00755, AID_ROOT, AID_ROOT, 0, "system/lib/valgrind/*" },
{ 00755, AID_ROOT, AID_ROOT, 0, "system/lib64/valgrind/*" },
{ 00755, AID_ROOT, AID_SHELL, 0, "system/xbin/*" },
{ 00755, AID_ROOT, AID_SHELL, 0, "system/vendor/bin/*" },
{ 00755, AID_ROOT, AID_SHELL, 0, "system/vendor/xbin/*" },
{ 00755, AID_ROOT, AID_SHELL, 0, "vendor/bin/*" },
{ 00755, AID_ROOT, AID_SHELL, 0, "vendor/xbin/*" },
{ 00750, AID_ROOT, AID_SHELL, 0, "sbin/*" },
{ 00755, AID_ROOT, AID_ROOT, 0, "bin/*" },
{ 00750, AID_ROOT, AID_SHELL, 0, "init*" },
{ 00750, AID_ROOT, AID_SHELL, 0, "charger*" },
{ 00750, AID_ROOT, AID_SHELL, 0, "sbin/fs_mgr" },
{ 00640, AID_ROOT, AID_SHELL, 0, "fstab.*" },
{ 00644, AID_ROOT, AID_ROOT, 0, 0 },
};
static inline void fs_config(const char *path, int dir, const char *target_out_path,
unsigned *uid, unsigned *gid, unsigned *mode, uint64_t *capabilities)
{
const struct fs_path_config *pc;
int plen;
if (path[0] == '/') {
path++;
}
pc = dir ? android_dirs : android_files;
plen = strlen(path);
for(; pc->prefix; pc++){
int len = strlen(pc->prefix);
if (dir) {
if(plen < len) continue;
if(!strncmp(pc->prefix, path, len)) break;
continue;
}
/* If name ends in * then allow partial matches. */
if (pc->prefix[len -1] == '*') {
if(!strncmp(pc->prefix, path, len - 1)) break;
} else if (plen == len){
if(!strncmp(pc->prefix, path, len)) break;
}
}
*uid = pc->uid;
*gid = pc->gid;
*mode = (*mode & (~07777)) | pc->mode;
*capabilities = pc->capabilities;
#if 0
fprintf(stderr,"< '%s' '%s' %d %d %o >\n",
path, pc->prefix ? pc->prefix : "", *uid, *gid, *mode);
#endif
}
ssize_t fs_config_generate(char *buffer, size_t length, const struct fs_path_config *pc);
#endif
#endif
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