include/private/android_filesystem_config.h - third_party/android/platform/system/core - Git at Google

 /*
  * 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_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_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 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, },
     { "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, },
     { "vpn",       AID_VPN, },
     { "keystore",  AID_KEYSTORE, },
     { "inet",      AID_INET, },
     { "net_raw",   AID_NET_RAW, },
     { "net_admin", AID_NET_ADMIN, },
     { "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" },
     { 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/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/bluez/hcid.conf" },
     { 00440, AID_BLUETOOTH, AID_BLUETOOTH, "system/etc/bluez/input.conf" },
     { 00440, AID_BLUETOOTH, AID_BLUETOOTH, "system/etc/bluez/audio.conf" },
     { 00440, AID_RADIO,     AID_AUDIO,     "system/etc/AudioPara4.csv" },
     { 00555, AID_ROOT,      AID_ROOT,      "system/etc/ppp/*" },
     { 00644, AID_SYSTEM,    AID_SYSTEM,    "data/app/*" },
     { 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" },
     { 02755, AID_ROOT,      AID_INET,      "system/bin/netcfg" },
     	/* the following four 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" },
     { 00755, AID_ROOT,      AID_SHELL,     "system/bin/*" },
     { 00755, AID_ROOT,      AID_SHELL,     "system/xbin/*" },
     { 00750, AID_ROOT,      AID_SHELL,     "sbin/*" },
     { 00755, AID_ROOT,      AID_ROOT,      "bin/*" },
     { 00750, AID_ROOT,      AID_SHELL,     "init*" },
     { 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
	/*
	* 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_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_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 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, },
	{ "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, },
	{ "vpn", AID_VPN, },
	{ "keystore", AID_KEYSTORE, },
	{ "inet", AID_INET, },
	{ "net_raw", AID_NET_RAW, },
	{ "net_admin", AID_NET_ADMIN, },
	{ "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" },
	{ 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/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/bluez/hcid.conf" },
	{ 00440, AID_BLUETOOTH, AID_BLUETOOTH, "system/etc/bluez/input.conf" },
	{ 00440, AID_BLUETOOTH, AID_BLUETOOTH, "system/etc/bluez/audio.conf" },
	{ 00440, AID_RADIO, AID_AUDIO, "system/etc/AudioPara4.csv" },
	{ 00555, AID_ROOT, AID_ROOT, "system/etc/ppp/*" },
	{ 00644, AID_SYSTEM, AID_SYSTEM, "data/app/*" },
	{ 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" },
	{ 02755, AID_ROOT, AID_INET, "system/bin/netcfg" },
	/* the following four 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" },
	{ 00755, AID_ROOT, AID_SHELL, "system/bin/*" },
	{ 00755, AID_ROOT, AID_SHELL, "system/xbin/*" },
	{ 00750, AID_ROOT, AID_SHELL, "sbin/*" },
	{ 00755, AID_ROOT, AID_ROOT, "bin/*" },
	{ 00750, AID_ROOT, AID_SHELL, "init*" },
	{ 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