From a401b650100ef6cb9927cef0631a57cfe944f2d2 Mon Sep 17 00:00:00 2001 From: Theodore Ts'o Date: Thu, 26 Jun 2025 09:53:41 -0400 Subject: [PATCH] Bludgen e2fsdroid so it can build on a Debian system Add a Makefile for contrib/android and adjust some include paths to work on a Linux build. (Hopefully it won't break an AOSP build, but we need check on that.) Requires the installation of the following Debian packages (and their dependencies): libselinux1-dev android-liblog-dev android-libcutils-dev In addition, due to what is arguably a bug in android-libcutils-dev, we need to install the following symlink (on the amd64 platform): % sudo ln -s android/libcutils.so /usr/lib/x86_64-linux-gnu Another nasty thing is that I needed to copy private header files from the libcutils source package, because they aren't exported by android-libcutils-dev. (After all, why should they --- they are marked as "private".) There is a question of whether e2fsdroid is depending on private header files is a good thing (do they change in different versions of Android/AOSP? Inquiring minds want to know :-) Perhaps AOSP should be exporting these as an official interface as part of libcutils or some other AOSP repo? Signed-off-by: Theodore Ts'o --- configure | 2 +- configure.ac | 2 +- contrib/android/Makefile.in | 63 ++++++ contrib/android/base_fs.h | 1 - contrib/android/basefs_allocator.c | 1 - contrib/android/e2fsdroid.c | 2 +- lib/private/android_filesystem_config.h | 245 ++++++++++++++++++++++++ lib/private/android_projectid_config.h | 61 ++++++ lib/private/canned_fs_config.h | 28 +++ lib/private/fs_config.h | 59 ++++++ 10 files changed, 459 insertions(+), 5 deletions(-) create mode 100644 contrib/android/Makefile.in create mode 100644 lib/private/android_filesystem_config.h create mode 100644 lib/private/android_projectid_config.h create mode 100644 lib/private/canned_fs_config.h create mode 100644 lib/private/fs_config.h diff --git a/configure b/configure index 6518f3643..7b3f997d6 100755 --- a/configure +++ b/configure @@ -16329,7 +16329,7 @@ for i in MCONFIG Makefile \ misc/Makefile ext2ed/Makefile e2fsck/Makefile \ debugfs/Makefile tests/Makefile tests/progs/Makefile \ tests/fuzz/Makefile resize/Makefile doc/Makefile \ - po/Makefile.in scrub/Makefile; do + po/Makefile.in scrub/Makefile contrib/android/Makefile; do if test -d `dirname ${srcdir}/$i` ; then outlist="$outlist $i" fi diff --git a/configure.ac b/configure.ac index 7c20035c0..e34194cd9 100644 --- a/configure.ac +++ b/configure.ac @@ -2022,7 +2022,7 @@ for i in MCONFIG Makefile \ misc/Makefile ext2ed/Makefile e2fsck/Makefile \ debugfs/Makefile tests/Makefile tests/progs/Makefile \ tests/fuzz/Makefile resize/Makefile doc/Makefile \ - po/Makefile.in scrub/Makefile; do + po/Makefile.in scrub/Makefile contrib/android/Makefile; do if test -d `dirname ${srcdir}/$i` ; then outlist="$outlist $i" fi diff --git a/contrib/android/Makefile.in b/contrib/android/Makefile.in new file mode 100644 index 000000000..508c0425d --- /dev/null +++ b/contrib/android/Makefile.in @@ -0,0 +1,63 @@ +# +# Standard e2fsprogs prologue.... +# + +srcdir = @srcdir@ +top_srcdir = @top_srcdir@ +VPATH = @srcdir@ +top_builddir = ../.. +my_dir = contrib/android +INSTALL = @INSTALL@ +MKDIR_P = @MKDIR_P@ + +@MCONFIG@ + +PROGS= e2fsdroid + +OBJS= e2fsdroid.o \ + block_range.o \ + fsmap.o \ + block_list.o \ + base_fs.o \ + perms.o \ + basefs_allocator.o \ + create_inode.o \ + create_inode_libarchive.o + +SRCS= e2fsdroid.c \ + block_range.c \ + fsmap.c \ + block_list.c \ + base_fs.c \ + perms.c \ + basefs_allocator.c \ + $(srcdir)/../../misc/create_inode.c \ + $(srcdir)/../../misc/create_inode_libarchive.c + +LIBS= $(LIBE2P) $(LIBEXT2FS) $(LIBCOM_ERR) $(LIBSUPPORT) -lselinux -lcutils +DEPLIBS= $(LIBE2P) $(LIBEXT2FS) $(DEPLIBCOM_ERR) $(DEPLIBSUPPORT) + +.c.o: + $(E) " CC $<" + $(Q) $(CC) -c $(ALL_CFLAGS) $< -o $@ + $(Q) $(CHECK_CMD) $(ALL_CFLAGS) $< + $(Q) $(CPPCHECK_CMD) $(CPPFLAGS) $< + +all:: $(PROGS) + +clean:: + $(RM) -f $(PROGS) $(OBJS) + +e2fsdroid: $(OBJS) $(DEPLIBS) + $(E) " LD $@" + $(Q) $(CC) $(ALL_LDFLAGS) -o e2fsdroid $(OBJS) $(LIBS) + +create_inode.o: $(srcdir)/../../misc/create_inode.c + $(E) " CC $@" + $(Q) $(CC) -c $(ALL_CFLAGS) -I$(srcdir) \ + $(srcdir)/../../misc/create_inode.c -o $@ + +create_inode_libarchive.o: $(srcdir)/../../misc/create_inode_libarchive.c + $(E) " CC $@" + $(Q) $(CC) -c $(ALL_CFLAGS) -I$(srcdir) \ + $(srcdir)/../../misc/create_inode_libarchive.c -o $@ diff --git a/contrib/android/base_fs.h b/contrib/android/base_fs.h index f53f1ed88..0429f79de 100644 --- a/contrib/android/base_fs.h +++ b/contrib/android/base_fs.h @@ -2,7 +2,6 @@ # define BASE_FS_H # include "fsmap.h" -# include "hashmap.h" # include "block_range.h" struct basefs_entry { diff --git a/contrib/android/basefs_allocator.c b/contrib/android/basefs_allocator.c index 4f9f5c158..96817bc61 100644 --- a/contrib/android/basefs_allocator.c +++ b/contrib/android/basefs_allocator.c @@ -3,7 +3,6 @@ #include #include "basefs_allocator.h" #include "block_range.h" -#include "hashmap.h" #include "base_fs.h" struct base_fs_allocator { diff --git a/contrib/android/e2fsdroid.c b/contrib/android/e2fsdroid.c index 82bd3408e..4830cbdc8 100644 --- a/contrib/android/e2fsdroid.c +++ b/contrib/android/e2fsdroid.c @@ -11,7 +11,7 @@ #include "base_fs.h" #include "block_list.h" #include "basefs_allocator.h" -#include "create_inode.h" +#include "../misc/create_inode.h" #ifndef UID_GID_MAP_MAX_EXTENTS /* diff --git a/lib/private/android_filesystem_config.h b/lib/private/android_filesystem_config.h new file mode 100644 index 000000000..2aaafbe24 --- /dev/null +++ b/lib/private/android_filesystem_config.h @@ -0,0 +1,245 @@ +/* + * 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 consumed by build/tools/fs_config and is used + * for generating various files. Anything #define AID_ + * becomes the mapping for getpwnam/getpwuid, etc. The + * 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. + * + * This file must only be used for platform (Google managed, and submitted through AOSP), AIDs. 3rd + * party AIDs must be added via config.fs, which will place them in the corresponding partition's + * passwd and group files. There are ranges in this file reserved for AIDs for each 3rd party + * partition, from which the system reads passwd and group files. + */ + +#pragma once + +/* This is the main Users and Groups config for the platform. + * DO NOT EVER RENUMBER + */ + +#define AID_ROOT 0 /* traditional unix root user */ + +/* The following are for tests like LTP and should only be used for testing. */ +#define AID_DAEMON 1 /* Traditional unix daemon owner. */ +#define AID_BIN 2 /* Traditional unix binaries owner. */ +#define AID_SYS 3 /* A group with the same gid on Linux/macOS/Android. */ + +#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 */ +#define AID_MEDIA_OBB 1059 /* GID for OBB files on internal media storage */ +#define AID_ESE 1060 /* embedded secure element (eSE) subsystem */ +#define AID_OTA_UPDATE 1061 /* resource tracking UID for OTA updates */ +#define AID_AUTOMOTIVE_EVS 1062 /* Automotive rear and surround view system */ +#define AID_LOWPAN 1063 /* LoWPAN subsystem */ +#define AID_HSM 1064 /* hardware security module subsystem */ +#define AID_RESERVED_DISK 1065 /* GID that has access to reserved disk space */ +#define AID_STATSD 1066 /* statsd daemon */ +#define AID_INCIDENTD 1067 /* incidentd daemon */ +#define AID_SECURE_ELEMENT 1068 /* secure element subsystem */ +#define AID_LMKD 1069 /* low memory killer daemon */ +#define AID_LLKD 1070 /* live lock daemon */ +#define AID_IORAPD 1071 /* input/output readahead and pin daemon */ +#define AID_GPU_SERVICE 1072 /* GPU service daemon */ +#define AID_NETWORK_STACK 1073 /* network stack service */ +#define AID_GSID 1074 /* GSI service daemon */ +#define AID_FSVERITY_CERT 1075 /* fs-verity key ownership in keystore */ +#define AID_CREDSTORE 1076 /* identity credential manager service */ +#define AID_EXTERNAL_STORAGE 1077 /* Full external storage access including USB OTG volumes */ +#define AID_EXT_DATA_RW 1078 /* GID for app-private data directories on external storage */ +#define AID_EXT_OBB_RW 1079 /* GID for OBB directories on external storage */ +#define AID_CONTEXT_HUB 1080 /* GID for access to the Context Hub */ +#define AID_VIRTUALIZATIONSERVICE 1081 /* VirtualizationService daemon */ +#define AID_ARTD 1082 /* ART Service daemon */ +#define AID_UWB 1083 /* UWB subsystem */ +#define AID_THREAD_NETWORK 1084 /* Thread Network subsystem */ +#define AID_DICED 1085 /* Android's DICE daemon */ +#define AID_DMESGD 1086 /* dmesg parsing daemon for kernel report collection */ +#define AID_JC_WEAVER 1087 /* Javacard Weaver HAL - to manage omapi ARA rules */ +#define AID_JC_STRONGBOX 1088 /* Javacard Strongbox HAL - to manage omapi ARA rules */ +#define AID_JC_IDENTITYCRED 1089 /* Javacard Identity Cred HAL - to manage omapi ARA rules */ +#define AID_SDK_SANDBOX 1090 /* SDK sandbox virtual UID */ +#define AID_SECURITY_LOG_WRITER 1091 /* write to security log */ +#define AID_PRNG_SEEDER 1092 /* PRNG seeder daemon */ +#define AID_UPROBESTATS 1093 /* uid for uprobestats */ +#define AID_CROS_EC 1094 /* uid for accessing ChromeOS EC (cros_ec) */ +#define AID_MMD 1095 /* uid for memory management daemon */ +// Additions to this file must be made in AOSP, *not* in internal branches. +// You will also need to update expect_ids() in bionic/tests/grp_pwd_test.cpp. + +#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 the vendor partition */ +/* Note that the two 'OEM' ranges pre-dated the vendor partition, so they take the legacy 'OEM' + * name. Additionally, they pre-dated passwd/group files, so there are users and groups named oem_# + * created automatically for all values in these ranges. If there is a user/group in a passwd/group + * file corresponding to this range, both the oem_# and user/group names will resolve to the same + * value. */ +#define AID_OEM_RESERVED_START 2900 +#define AID_OEM_RESERVED_END 2999 + +/* The 3000 series are intended for use as supplemental group ids 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_READPROC 3009 /* Allow /proc read access */ +#define AID_WAKELOCK 3010 /* Allow system wakelock read/write access */ +#define AID_UHID 3011 /* Allow read/write to /dev/uhid node */ +#define AID_READTRACEFS 3012 /* Allow tracefs read */ +#define AID_VIRTUALMACHINE 3013 /* Allows VMs to tune for performance*/ +// Additions to this file must be made in AOSP, *not* in internal branches. +// You will also need to update expect_ids() in bionic/tests/grp_pwd_test.cpp. + +/* The range 5000-5999 is also reserved for vendor partition. */ +#define AID_OEM_RESERVED_2_START 5000 +#define AID_OEM_RESERVED_2_END 5999 + +/* The range 6000-6499 is reserved for the system partition. */ +#define AID_SYSTEM_RESERVED_START 6000 +#define AID_SYSTEM_RESERVED_END 6499 + +/* The range 6500-6999 is reserved for the odm partition. */ +#define AID_ODM_RESERVED_START 6500 +#define AID_ODM_RESERVED_END 6999 + +/* The range 7000-7499 is reserved for the product partition. */ +#define AID_PRODUCT_RESERVED_START 7000 +#define AID_PRODUCT_RESERVED_END 7499 + +/* The range 7500-7999 is reserved for the system_ext partition. */ +#define AID_SYSTEM_EXT_RESERVED_START 7500 +#define AID_SYSTEM_EXT_RESERVED_END 7999 + +#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_EXT_GID_START 30000 /* start of gids for apps to mark external data */ +#define AID_EXT_GID_END 39999 /* end of gids for apps to mark external data */ + +#define AID_EXT_CACHE_GID_START 40000 /* start of gids for apps to mark external cached data */ +#define AID_EXT_CACHE_GID_END 49999 /* end of gids for apps to mark external 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 */ + +/* + * This is a magic number in the kernel and not something that was picked + * arbitrarily. This value is returned whenever a uid that has no mapping in the + * user namespace is returned to userspace: + * https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/tree/include/linux/highuid.h?h=v4.4#n40 + */ +#define AID_OVERFLOWUID 65534 /* unmapped user in the user namespace */ + +/* use the ranges below to determine whether a process is sdk sandbox */ +#define AID_SDK_SANDBOX_PROCESS_START 20000 /* start of uids allocated to sdk sandbox processes */ +#define AID_SDK_SANDBOX_PROCESS_END 29999 /* end of uids allocated to sdk sandbox processes */ + +/* use the ranges below to determine whether a process is isolated */ +#define AID_ISOLATED_START 90000 /* 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. + */ diff --git a/lib/private/android_projectid_config.h b/lib/private/android_projectid_config.h new file mode 100644 index 000000000..56a39a625 --- /dev/null +++ b/lib/private/android_projectid_config.h @@ -0,0 +1,61 @@ +/* + * Copyright (C) 2020 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. + */ + +#pragma once + +/* + * This file describes the project ID values we use for filesystem quota + * tracking. It is used on devices that don't have the sdcardfs kernel module, + * which requires us to use filesystem project IDs for efficient quota + * calculation. + * + * These values are typically set on files and directories using extended + * attributes; see vold for examples. + */ + +/* Default project ID for files on external storage. */ +#define PROJECT_ID_EXT_DEFAULT 1000 +/* Project ID for audio files on external storage. */ +#define PROJECT_ID_EXT_MEDIA_AUDIO 1001 +/* Project ID for video files on external storage. */ +#define PROJECT_ID_EXT_MEDIA_VIDEO 1002 +/* Project ID for image files on external storage. */ +#define PROJECT_ID_EXT_MEDIA_IMAGE 1003 + +/* Start of project IDs for apps to mark external app data. */ +#define PROJECT_ID_EXT_DATA_START 20000 +/* End of project IDs for apps to mark external app data. */ +#define PROJECT_ID_EXT_DATA_END 29999 + +/* Start of project IDs for apps to mark external cached data. */ +#define PROJECT_ID_EXT_CACHE_START 30000 +/* End of project IDs for apps to mark external cached data. */ +#define PROJECT_ID_EXT_CACHE_END 39999 + +/* Start of project IDs for apps to mark external OBB data. */ +#define PROJECT_ID_EXT_OBB_START 40000 +/* End of project IDs for apps to mark external OBB data. */ +#define PROJECT_ID_EXT_OBB_END 49999 + +/* Start of project IDs for apps to mark internal app data. */ +#define PROJECT_ID_APP_START 50000 +/* End of project IDs for apps to mark internal app data. */ +#define PROJECT_ID_APP_END 59999 + +/* Start of project IDs for apps to mark internal app cache data. */ +#define PROJECT_ID_APP_CACHE_START 60000 +/* End of project IDs for apps to mark internal app cache data. */ +#define PROJECT_ID_APP_CACHE_END 69999 diff --git a/lib/private/canned_fs_config.h b/lib/private/canned_fs_config.h new file mode 100644 index 000000000..ad4de4ce6 --- /dev/null +++ b/lib/private/canned_fs_config.h @@ -0,0 +1,28 @@ +/* + * Copyright (C) 2014 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. + */ + +#pragma once + +#include +#include + +__BEGIN_DECLS + +int load_canned_fs_config(const char* fn); +void canned_fs_config(const char* path, int dir, const char* target_out_path, unsigned* uid, + unsigned* gid, unsigned* mode, uint64_t* capabilities); + +__END_DECLS diff --git a/lib/private/fs_config.h b/lib/private/fs_config.h new file mode 100644 index 000000000..9a727bc58 --- /dev/null +++ b/lib/private/fs_config.h @@ -0,0 +1,59 @@ +/* + * 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. +*/ + +#pragma once + +#include +#include +#include +#include +#include + +#include + +/* Rules for directories and files has moved to system/code/libcutils/fs_config.c */ + +__BEGIN_DECLS + +/* This API is deprecated. New users should call get_fs_config. */ +void fs_config(const char* path, int dir, const char* target_out_path, unsigned* uid, unsigned* gid, + unsigned* mode, uint64_t* capabilities); + +struct fs_config { + uid_t uid; + gid_t gid; + mode_t mode; + uint64_t capabilities; +}; + +/* + * If a file system configuration was found for the specified path, store it to *conf. + * Returns whether a file system configuration was found. + * + * dir: Whether path refers to a directory. + * target_out_path: Path to the base directory to read the file system configuration from, or a null + * pointer to use the root directory as the base. Host code should pass $ANDROID_PRODUCT_OUT or + * equivalent, and device code should pass a null pointer. + */ +bool get_fs_config(const char* path, bool dir, const char* target_out_path, + struct fs_config* conf); + +__END_DECLS -- 2.47.2