Merge "adb: support /oem partition" (e4681f22) · Commits · e / os / android_system_core

adb/commandline.cpp

+42 −25

Original line number	Diff line number	Diff line
		@@ -43,7 +43,8 @@
		static int do_cmd(transport_type ttype, const char* serial, const char *cmd, ...);

		int find_sync_dirs(const char *srcarg,
		char android_srcdir_out, char data_srcdir_out, char **vendor_srcdir_out);
		char system_srcdir_out, char data_srcdir_out, char **vendor_srcdir_out,
		char **oem_srcdir_out);
		int install_app(transport_type transport, const char* serial, int argc,
		const char** argv);
		int install_multiple_app(transport_type transport, const char* serial, int argc,
		@@ -206,7 +207,7 @@ void help()
		" adb get-serialno - prints: <serial-number>\n"
		" adb get-devpath - prints: <device-path>\n"
		" adb status-window - continuously print device status for a specified device\n"
		" adb remount - remounts the /system and /vendor (if present) partitions on the device read-write\n"
		" adb remount - remounts the /system, /vendor (if present) and /oem (if present) partitions on the device read-write\n"
		" adb reboot [bootloader\|recovery] - reboots the device, optionally into the bootloader or recovery program\n"
		" adb reboot-bootloader - reboots the device into the bootloader\n"
		" adb root - restarts the adbd daemon with root permissions\n"
		@@ -222,9 +223,9 @@ void help()
		"adb sync notes: adb sync [ <directory> ]\n"
		" <localdir> can be interpreted in several ways:\n"
		"\n"
		" - If <directory> is not specified, /system, /vendor (if present), and /data partitions will be updated.\n"
		" - If <directory> is not specified, /system, /vendor (if present), /oem (if present) and /data partitions will be updated.\n"
		"\n"
		" - If it is \"system\", \"vendor\" or \"data\", only the corresponding partition\n"
		" - If it is \"system\", \"vendor\", \"oem\" or \"data\", only the corresponding partition\n"
		" is updated.\n"
		"\n"
		"environmental variables:\n"
		@@ -1633,7 +1634,8 @@ int adb_commandline(int argc, const char **argv)
		}
		else if (!strcmp(argv[0], "sync")) {
		const char* srcarg;
		char android_srcpath, data_srcpath, *vendor_srcpath;
		char system_srcpath, data_srcpath, vendor_srcpath, oem_srcpath;

		int listonly = 0;

		int ret;
		@@ -1653,18 +1655,22 @@ int adb_commandline(int argc, const char **argv)
		} else {
		return usage();
		}
		ret = find_sync_dirs(srcarg, &android_srcpath, &data_srcpath, &vendor_srcpath);
		ret = find_sync_dirs(srcarg, &system_srcpath, &data_srcpath, &vendor_srcpath,
		&oem_srcpath);
		if (ret != 0) return usage();

		if (android_srcpath != NULL)
		ret = do_sync_sync(android_srcpath, "/system", listonly);
		if (system_srcpath != NULL)
		ret = do_sync_sync(system_srcpath, "/system", listonly);
		if (ret == 0 && vendor_srcpath != NULL)
		ret = do_sync_sync(vendor_srcpath, "/vendor", listonly);
		if(ret == 0 && oem_srcpath != NULL)
		ret = do_sync_sync(oem_srcpath, "/oem", listonly);
		if (ret == 0 && data_srcpath != NULL)
		ret = do_sync_sync(data_srcpath, "/data", listonly);

		free(android_srcpath);
		free(system_srcpath);
		free(vendor_srcpath);
		free(oem_srcpath);
		free(data_srcpath);
		return ret;
		}
		@@ -1770,49 +1776,60 @@ static int do_cmd(transport_type ttype, const char* serial, const char *cmd, ...
		}

		int find_sync_dirs(const char *srcarg,
		char android_srcdir_out, char data_srcdir_out, char **vendor_srcdir_out)
		char system_srcdir_out, char data_srcdir_out, char **vendor_srcdir_out,
		char **oem_srcdir_out)
		{
		char android_srcdir = NULL, data_srcdir = NULL, *vendor_srcdir = NULL;
		char system_srcdir = NULL, data_srcdir = NULL, vendor_srcdir = NULL, oem_srcdir = NULL;
		struct stat st;

		if(srcarg == NULL) {
		android_srcdir = product_file("system");
		system_srcdir = product_file("system");
		data_srcdir = product_file("data");
		vendor_srcdir = product_file("vendor");
		/* Check if vendor partition exists */
		oem_srcdir = product_file("oem");
		// Check if vendor partition exists.
		if (lstat(vendor_srcdir, &st) \|\| !S_ISDIR(st.st_mode))
		vendor_srcdir = NULL;
		// Check if oem partition exists.
		if (lstat(oem_srcdir, &st) \|\| !S_ISDIR(st.st_mode))
		oem_srcdir = NULL;
		} else {
		/* srcarg may be "data", "system" or NULL.
		* if srcarg is NULL, then both data and system are synced
		*/
		// srcarg may be "data", "system", "vendor", "oem" or NULL.
		// If srcarg is NULL, then all partitions are synced.
		if(strcmp(srcarg, "system") == 0) {
		android_srcdir = product_file("system");
		system_srcdir = product_file("system");
		} else if(strcmp(srcarg, "data") == 0) {
		data_srcdir = product_file("data");
		} else if(strcmp(srcarg, "vendor") == 0) {
		vendor_srcdir = product_file("vendor");
		} else if(strcmp(srcarg, "oem") == 0) {
		oem_srcdir = product_file("oem");
		} else {
		/* It's not "system", "vendor", or "data".
		*/
		// It's not "system", "data", "vendor", or "oem".
		return 1;
		}
		}

		if(android_srcdir_out != NULL)
		*android_srcdir_out = android_srcdir;
		if(system_srcdir_out != NULL)
		*system_srcdir_out = system_srcdir;
		else
		free(android_srcdir);
		free(system_srcdir);

		if(vendor_srcdir_out != NULL)
		*vendor_srcdir_out = vendor_srcdir;
		else
		free(vendor_srcdir);

		if(oem_srcdir_out != NULL)
		*oem_srcdir_out = oem_srcdir;
		else
		free(oem_srcdir);

		if(data_srcdir_out != NULL)
		*data_srcdir_out = data_srcdir;
		else
		free(data_srcdir);

		return 0;
		}

adb/file_sync_service.cpp

+7 −11

Original line number	Diff line number	Diff line
		@@ -33,15 +33,11 @@
		#include "file_sync_service.h"
		#include "private/android_filesystem_config.h"

		/* TODO: use fs_config to configure permissions on /data */
		static bool is_on_system(const char *name) {
		const char *SYSTEM = "/system/";
		return (strncmp(SYSTEM, name, strlen(SYSTEM)) == 0);
		}

		static bool is_on_vendor(const char *name) {
		const char *VENDOR = "/vendor/";
		return (strncmp(VENDOR, name, strlen(VENDOR)) == 0);
		static bool should_use_fs_config(const char* path) {
		// TODO: use fs_config to configure permissions on /data.
		return strncmp("/system/", path, strlen("/system/")) == 0 \|\|
		strncmp("/vendor/", path, strlen("/vendor/")) == 0 \|\|
		strncmp("/oem/", path, strlen("/oem/")) == 0;
		}

		static int mkdirs(char *name)
		@@ -59,7 +55,7 @@ static int mkdirs(char *name)
		x = adb_dirstart(x);
		if(x == 0) return 0;
		*x = 0;
		if (is_on_system(name) \|\| is_on_vendor(name)) {
		if (should_use_fs_config(name)) {
		fs_config(name, 1, &uid, &gid, &mode, &cap);
		}
		ret = adb_mkdir(name, mode);
		@@ -368,7 +364,7 @@ static int do_send(int s, char path, char buffer)
		if(*tmp == '/') {
		tmp++;
		}
		if (is_on_system(path) \|\| is_on_vendor(path)) {
		if (should_use_fs_config(path)) {
		fs_config(tmp, 0, &uid, &gid, &mode, &cap);
		}
		return handle_send_file(s, path, uid, gid, mode, buffer, do_unlink);

adb/remount_service.cpp

+45 −64

Original line number	Diff line number	Diff line
		@@ -23,6 +23,8 @@
		#include <sys/mount.h>
		#include <unistd.h>

		#include <string>

		#include "sysdeps.h"

		#define TRACE_TAG TRACE_ADB
		@@ -32,10 +34,10 @@

		static int system_ro = 1;
		static int vendor_ro = 1;
		static int oem_ro = 1;

		/* Returns the device used to mount a directory in /proc/mounts */
		static char find_mount(const char dir)
		{
		static std::string find_mount(const char *dir) {
		FILE* fp;
		struct mntent* mentry;
		char* device = NULL;
		@@ -45,7 +47,7 @@ static char find_mount(const char dir)
		}
		while ((mentry = getmntent(fp)) != NULL) {
		if (strcmp(dir, mentry->mnt_dir) == 0) {
		device = strdup(mentry->mnt_fsname);
		device = mentry->mnt_fsname;
		break;
		}
		}
		@@ -53,64 +55,53 @@ static char find_mount(const char dir)
		return device;
		}

		static int hasVendorPartition()
		{
		struct stat info;
		if (!lstat("/vendor", &info))
		if ((info.st_mode & S_IFMT) == S_IFDIR)
		return true;
		return false;
		static bool has_partition(const char* path) {
		struct stat sb;
		return (lstat(path, &sb) == 0 && S_ISDIR(sb.st_mode));
		}

		int make_block_device_writable(const char* dev)
		{
		int fd = -1;
		int OFF = 0;
		int rc = -1;

		if (!dev)
		goto errout;

		fd = unix_open(dev, O_RDONLY \| O_CLOEXEC);
		if (fd < 0)
		goto errout;

		if (ioctl(fd, BLKROSET, &OFF)) {
		goto errout;
		int make_block_device_writable(const std::string& dev) {
		int fd = unix_open(dev.c_str(), O_RDONLY \| O_CLOEXEC);
		if (fd == -1) {
		return -1;
		}

		rc = 0;

		errout:
		if (fd >= 0) {
		adb_close(fd);
		}
		return rc;
		int result = -1;
		int OFF = 0;
		if (!ioctl(fd, BLKROSET, &OFF)) {
		result = 0;
		}
		adb_close(fd);

		/* Init mounts /system as read only, remount to enable writes. */
		static int remount(const char* dir, int* dir_ro)
		{
		char *dev = 0;
		int rc = -1;

		dev = find_mount(dir);
		return result;
		}

		if (!dev \|\| make_block_device_writable(dev)) {
		goto errout;
		// Init mounts /system as read only, remount to enable writes.
		static int remount(const char* dir, int* dir_ro) {
		std::string dev(find_mount(dir));
		if (dev.empty() \|\| make_block_device_writable(dev)) {
		return -1;
		}

		rc = mount(dev, dir, "none", MS_REMOUNT, NULL);
		int rc = mount(dev.c_str(), dir, "none", MS_REMOUNT, NULL);
		*dir_ro = rc;

		errout:
		free(dev);
		return rc;
		}

		void remount_service(int fd, void *cookie)
		{
		char buffer[200];
		static bool remount_partition(int fd, const char* partition, int* ro) {
		if (!has_partition(partition)) {
		return true;
		}
		if (remount(partition, ro)) {
		char buf[200];
		snprintf(buf, sizeof(buf), "remount of %s failed: %s\n", partition, strerror(errno));
		WriteStringFully(fd, buf);
		return false;
		}
		return true;
		}

		void remount_service(int fd, void* cookie) {
		char prop_buf[PROPERTY_VALUE_MAX];

		if (getuid() != 0) {
		@@ -133,6 +124,7 @@ void remount_service(int fd, void *cookie)
		if (system_verified \|\| vendor_verified) {
		// Allow remount but warn of likely bad effects
		bool both = system_verified && vendor_verified;
		char buffer[200];
		snprintf(buffer, sizeof(buffer),
		"dm_verity is enabled on the %s%s%s partition%s.\n",
		system_verified ? "system" : "",
		@@ -147,23 +139,12 @@ void remount_service(int fd, void *cookie)
		WriteStringFully(fd, buffer);
		}

		if (remount("/system", &system_ro)) {
		snprintf(buffer, sizeof(buffer), "remount of system failed: %s\n",strerror(errno));
		WriteStringFully(fd, buffer);
		}

		if (hasVendorPartition()) {
		if (remount("/vendor", &vendor_ro)) {
		snprintf(buffer, sizeof(buffer), "remount of vendor failed: %s\n",strerror(errno));
		WriteStringFully(fd, buffer);
		}
		}
		bool success = true;
		success &= remount_partition(fd, "/system", &system_ro);
		success &= remount_partition(fd, "/vendor", &vendor_ro);
		success &= remount_partition(fd, "/oem", &oem_ro);

		if (!system_ro && (!vendor_ro \|\| !hasVendorPartition()))
		WriteStringFully(fd, "remount succeeded\n");
		else {
		WriteStringFully(fd, "remount failed\n");
		}
		WriteStringFully(fd, success ? "remount succeeded\n" : "remount failed\n");

		adb_close(fd);
		}