android系统UID定义
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源码目录：system\core\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 <string.h> #include <sys/stat.h> #include <sys/types.h> /* 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_AVAILABLE 1020 /* available for use */ #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_NFC 1025 /* nfc subsystem */ #define AID_DRMRPC 1026 /* group for drm rpc */ #define AID_SHELL 2000 /* adb and debug shell user */ #define AID_CACHE 2001 /* cache access */ #define AID_DIAG 2002 /* access to diagnostic resources */ /* 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_MISC 9998 /* access to misc storage */ #define AID_NOBODY 9999 #define AID_APP 10000 /* first app user */ #if !defined(EXCLUDE_FS_CONFIG_STRUCTURES) 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, }, { "dhcp", AID_DHCP, }, { "adb", AID_ADB, }, { "install", AID_INSTALL, }, { "media", AID_MEDIA, }, { "drm", AID_DRM, }, { "available", AID_AVAILABLE, }, { "nfc", AID_NFC, }, { "drmrpc", AID_DRMRPC, }, { "shell", AID_SHELL, }, { "cache", AID_CACHE, }, { "diag", AID_DIAG, }, { "net_bt_admin", AID_NET_BT_ADMIN, }, { "net_bt", AID_NET_BT, }, { "sdcard_rw", AID_SDCARD_RW, }, { "media_rw", AID_MEDIA_RW, }, { "vpn", AID_VPN, }, { "keystore", AID_KEYSTORE, }, { "usb", AID_USB, }, { "mtp", AID_MTP, }, { "gps", AID_GPS, }, { "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, }, { "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; 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 struct fs_path_config android_dirs[] = { { 00770, AID_SYSTEM, AID_CACHE, "cache" }, { 00771, AID_SYSTEM, AID_SYSTEM, "data/app" }, { 00771, AID_SYSTEM, AID_SYSTEM, "data/app-private" }, { 00771, AID_SYSTEM, AID_SYSTEM, "data/dalvik-cache" }, { 00771, AID_SYSTEM, AID_SYSTEM, "data/data" }, { 00771, AID_SHELL, AID_SHELL, "data/local/tmp" }, { 00771, AID_SHELL, AID_SHELL, "data/local" }, { 01771, AID_SYSTEM, AID_MISC, "data/misc" }, { 00770, AID_DHCP, AID_DHCP, "data/misc/dhcp" }, { 00775, AID_MEDIA_RW, AID_MEDIA_RW, "data/media" }, { 00775, AID_MEDIA_RW, AID_MEDIA_RW, "data/media/Music" }, { 00771, AID_SYSTEM, AID_SYSTEM, "data" }, { 00750, AID_ROOT, AID_SHELL, "sbin" }, { 00755, AID_ROOT, AID_SHELL, "system/bin" }, { 00755, AID_ROOT, AID_SHELL, "system/vendor" }, { 00755, AID_ROOT, AID_SHELL, "system/xbin" }, { 00755, AID_ROOT, AID_ROOT, "system/etc/ppp" }, { 00777, AID_ROOT, AID_ROOT, "sdcard" }, { 00755, AID_ROOT, AID_ROOT, 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 struct fs_path_config android_files[] = { { 00440, AID_ROOT, AID_SHELL, "system/etc/init.goldfish.rc" }, { 00550, AID_ROOT, AID_SHELL, "system/etc/init.goldfish.sh" }, { 00440, AID_ROOT, AID_SHELL, "system/etc/init.trout.rc" }, { 00550, AID_ROOT, AID_SHELL, "system/etc/init.ril" }, { 00550, AID_ROOT, AID_SHELL, "system/etc/init.testmenu" }, { 00550, AID_DHCP, AID_SHELL, "system/etc/dhcpcd/dhcpcd-run-hooks" }, { 00440, AID_BLUETOOTH, AID_BLUETOOTH, "system/etc/dbus.conf" }, { 00440, AID_BLUETOOTH, AID_BLUETOOTH, "system/etc/bluetooth/main.conf" }, { 00440, AID_BLUETOOTH, AID_BLUETOOTH, "system/etc/bluetooth/input.conf" }, { 00440, AID_BLUETOOTH, AID_BLUETOOTH, "system/etc/bluetooth/audio.conf" }, { 00440, AID_BLUETOOTH, AID_BLUETOOTH, "system/etc/bluetooth/network.conf" }, { 00444, AID_NET_BT, AID_NET_BT, "system/etc/bluetooth/blacklist.conf" }, { 00640, AID_SYSTEM, AID_SYSTEM, "system/etc/bluetooth/auto_pairing.conf" }, { 00444, AID_RADIO, AID_AUDIO, "system/etc/AudioPara4.csv" }, { 00555, AID_ROOT, AID_ROOT, "system/etc/ppp/*" }, { 00555, AID_ROOT, AID_ROOT, "system/etc/rc.*" }, { 00644, AID_SYSTEM, AID_SYSTEM, "data/app/*" }, { 00644, AID_MEDIA_RW, AID_MEDIA_RW, "data/media/*" }, { 00644, AID_SYSTEM, AID_SYSTEM, "data/app-private/*" }, { 00644, AID_APP, AID_APP, "data/data/*" }, /* the following two files are INTENTIONALLY set-gid and not set-uid. * Do not change. */ { 02755, AID_ROOT, AID_NET_RAW, "system/bin/ping" }, { 02750, AID_ROOT, AID_INET, "system/bin/netcfg" }, /* the following five files are INTENTIONALLY set-uid, but they * are NOT included on user builds. */ { 06755, AID_ROOT, AID_ROOT, "system/xbin/su" }, { 06755, AID_ROOT, AID_ROOT, "system/xbin/librank" }, { 06755, AID_ROOT, AID_ROOT, "system/xbin/procrank" }, { 06755, AID_ROOT, AID_ROOT, "system/xbin/procmem" }, { 06755, AID_ROOT, AID_ROOT, "system/xbin/tcpdump" }, { 04770, AID_ROOT, AID_RADIO, "system/bin/pppd-ril" }, /* the following file is INTENTIONALLY set-uid, and IS included * in user builds. */ { 06750, AID_ROOT, AID_SHELL, "system/bin/run-as" }, { 00755, AID_ROOT, AID_SHELL, "system/bin/*" }, { 00755, AID_ROOT, AID_ROOT, "system/lib/valgrind/*" }, { 00755, AID_ROOT, AID_SHELL, "system/xbin/*" }, { 00755, AID_ROOT, AID_SHELL, "system/vendor/bin/*" }, { 00750, AID_ROOT, AID_SHELL, "sbin/*" }, { 00755, AID_ROOT, AID_ROOT, "bin/*" }, { 00750, AID_ROOT, AID_SHELL, "init*" }, { 00750, AID_ROOT, AID_SHELL, "charger*" }, { 00644, AID_ROOT, AID_ROOT, 0 }, }; static inline void fs_config(const char *path, int dir, unsigned *uid, unsigned *gid, unsigned *mode) { struct fs_path_config *pc; int plen; 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; #if 0 fprintf(stderr,"< '%s' '%s' %d %d %o >\n", path, pc->prefix ? pc->prefix : "", *uid, *gid, *mode); #endif } #endif #endif 0 0
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