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tar nandroid and /data/media support.

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Change-Id: I9405e701887fc83c422c63c1dbf5ff087fff880d
This commit is contained in:
Koushik Dutta 2011-06-08 19:03:27 -07:00
parent c56768cfb1
commit 5082299146
14 changed files with 433 additions and 72 deletions
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5
Android.mk
View File

@ -26,7 +26,7 @@ LOCAL_MODULE := recovery
LOCAL_FORCE_STATIC_EXECUTABLE := true
RECOVERY_VERSION := ClockworkMod Recovery v3.2.0.1
RECOVERY_VERSION := ClockworkMod Recovery v3.2.0.2
LOCAL_CFLAGS += -DRECOVERY_VERSION="$(RECOVERY_VERSION)"
RECOVERY_API_VERSION := 2
LOCAL_CFLAGS += -DRECOVERY_API_VERSION=$(RECOVERY_API_VERSION)
@ -58,7 +58,7 @@ LOCAL_STATIC_LIBRARIES += libminzip libunz libmincrypt
LOCAL_STATIC_LIBRARIES += libedify libbusybox libclearsilverregex libmkyaffs2image libunyaffs liberase_image libdump_image libflash_image
LOCAL_STATIC_LIBRARIES += libflashutils libmtdutils libmmcutils libbmlutils
LOCAL_STATIC_LIBRARIES += libcrecovery libflashutils libmtdutils libmmcutils libbmlutils
ifeq ($(BOARD_USES_BML_OVER_MTD),true)
LOCAL_STATIC_LIBRARIES += libbml_over_mtd
@ -129,6 +129,7 @@ include $(BUILD_EXECUTABLE)
include $(commands_recovery_local_path)/bmlutils/Android.mk
include $(commands_recovery_local_path)/flashutils/Android.mk
include $(commands_recovery_local_path)/libcrecovery/Android.mk
include $(commands_recovery_local_path)/minui/Android.mk
include $(commands_recovery_local_path)/minzip/Android.mk
include $(commands_recovery_local_path)/mtdutils/Android.mk

6
extendedcommands.c
View File

@ -466,10 +466,16 @@ int format_unknown_device(const char *device, const char* path, const char *fs_t
}
static char tmp[PATH_MAX];
if (strcmp(path, "/data") == 0) {
sprintf(tmp, "cd /data ; for f in $(ls -a | grep -v ^media$); do rm -rf $f; done");
__system(tmp);
}
else {
sprintf(tmp, "rm -rf %s/*", path);
__system(tmp);
sprintf(tmp, "rm -rf %s/.*", path);
__system(tmp);
}
ensure_path_unmounted(path);
return 0;

2
flashutils/Android.mk
View File

@ -8,7 +8,7 @@ LOCAL_SRC_FILES := flashutils.c
LOCAL_MODULE := libflashutils
LOCAL_MODULE_TAGS := eng
LOCAL_C_INCLUDES += bootable/recovery
LOCAL_STATIC_LIBRARIES := libmmcutils libmtdutils libbmlutils
LOCAL_STATIC_LIBRARIES := libmmcutils libmtdutils libbmlutils libcrecovery
include $(BUILD_STATIC_LIBRARY)
include $(CLEAR_VARS)

41
flashutils/flashutils.c
View File

@ -29,47 +29,6 @@ char* get_default_filesystem()
return device_flash_type() == MMC ? "ext3" : "yaffs2";
}
// This was pulled from bionic: The default system command always looks
// for shell in /system/bin/sh. This is bad.
#define _PATH_BSHELL "/sbin/sh"
extern char **environ;
int
__system(const char *command)
{
pid_t pid;
sig_t intsave, quitsave;
sigset_t mask, omask;
int pstat;
char *argp[] = {"sh", "-c", NULL, NULL};
if (!command) /* just checking... */
return(1);
argp[2] = (char *)command;
sigemptyset(&mask);
sigaddset(&mask, SIGCHLD);
sigprocmask(SIG_BLOCK, &mask, &omask);
switch (pid = vfork()) {
case -1: /* error */
sigprocmask(SIG_SETMASK, &omask, NULL);
return(-1);
case 0: /* child */
sigprocmask(SIG_SETMASK, &omask, NULL);
execve(_PATH_BSHELL, argp, environ);
_exit(127);
}
intsave = (sig_t) bsd_signal(SIGINT, SIG_IGN);
quitsave = (sig_t) bsd_signal(SIGQUIT, SIG_IGN);
pid = waitpid(pid, (int *)&pstat, 0);
sigprocmask(SIG_SETMASK, &omask, NULL);
(void)bsd_signal(SIGINT, intsave);
(void)bsd_signal(SIGQUIT, quitsave);
return (pid == -1 ? -1 : pstat);
}
int get_flash_type(const char* partitionType) {
int type = UNSUPPORTED;
if (strcmp(partitionType, "mtd") == 0)

2
flashutils/flashutils.h
View File

@ -15,8 +15,6 @@ int get_partition_device(const char *partition, char *device);
int is_mtd_device();
char* get_default_filesystem();
int __system(const char *command);
extern int cmd_mtd_restore_raw_partition(const char *partition, const char *filename);
extern int cmd_mtd_backup_raw_partition(const char *partition, const char *filename);
extern int cmd_mtd_erase_raw_partition(const char *partition);

13
libcrecovery/Android.mk Normal file
View File

@ -0,0 +1,13 @@
LOCAL_PATH := $(call my-dir)
ifneq ($(TARGET_SIMULATOR),true)
ifeq ($(TARGET_ARCH),arm)
include $(CLEAR_VARS)
LOCAL_SRC_FILES := system.c popen.c
LOCAL_MODULE := libcrecovery
LOCAL_MODULE_TAGS := eng
include $(BUILD_STATIC_LIBRARY)
endif
endif

8
libcrecovery/common.h Normal file
View File

@ -0,0 +1,8 @@
#ifndef LIBCRECOVERY_COMMON_H
#define LIBCRECOVERY_COMMON_H
int __system(const char *command);
FILE * __popen(const char *program, const char *type);
int __pclose(FILE *iop);
#endif

2
libcrecovery/defines.h Normal file
View File

@ -0,0 +1,2 @@
#undef _PATH_BSHELL
#define _PATH_BSHELL "/sbin/sh"

169
libcrecovery/popen.c Normal file
View File

@ -0,0 +1,169 @@
/* $OpenBSD: popen.c,v 1.17 2005/08/08 08:05:34 espie Exp $ */
/*
* Copyright (c) 1988, 1993
* The Regents of the University of California. All rights reserved.
*
* This code is derived from software written by Ken Arnold and
* published in UNIX Review, Vol. 6, No. 8.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. Neither the name of the University nor the names of its contributors
* may be used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*/
#include <sys/param.h>
#include <sys/wait.h>
#include <signal.h>
#include <errno.h>
#include <unistd.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <paths.h>
#include "defines.h"
static struct pid {
struct pid *next;
FILE *fp;
pid_t pid;
} *pidlist;
FILE *
__popen(const char *program, const char *type)
{
struct pid * volatile cur;
FILE *iop;
int pdes[2];
pid_t pid;
if ((*type != 'r' && *type != 'w') || type[1] != '\0') {
errno = EINVAL;
return (NULL);
}
if ((cur = malloc(sizeof(struct pid))) == NULL)
return (NULL);
if (pipe(pdes) < 0) {
free(cur);
return (NULL);
}
switch (pid = vfork()) {
case -1: /* Error. */
(void)close(pdes[0]);
(void)close(pdes[1]);
free(cur);
return (NULL);
/* NOTREACHED */
case 0: /* Child. */
{
struct pid *pcur;
/*
* because vfork() instead of fork(), must leak FILE *,
* but luckily we are terminally headed for an execl()
*/
for (pcur = pidlist; pcur; pcur = pcur->next)
close(fileno(pcur->fp));
if (*type == 'r') {
int tpdes1 = pdes[1];
(void) close(pdes[0]);
/*
* We must NOT modify pdes, due to the
* semantics of vfork.
*/
if (tpdes1 != STDOUT_FILENO) {
(void)dup2(tpdes1, STDOUT_FILENO);
(void)close(tpdes1);
tpdes1 = STDOUT_FILENO;
}
} else {
(void)close(pdes[1]);
if (pdes[0] != STDIN_FILENO) {
(void)dup2(pdes[0], STDIN_FILENO);
(void)close(pdes[0]);
}
}
execl(_PATH_BSHELL, "sh", "-c", program, (char *)NULL);
_exit(127);
/* NOTREACHED */
}
}
/* Parent; assume fdopen can't fail. */
if (*type == 'r') {
iop = fdopen(pdes[0], type);
(void)close(pdes[1]);
} else {
iop = fdopen(pdes[1], type);
(void)close(pdes[0]);
}
/* Link into list of file descriptors. */
cur->fp = iop;
cur->pid = pid;
cur->next = pidlist;
pidlist = cur;
return (iop);
}
/*
* pclose --
* Pclose returns -1 if stream is not associated with a `popened' command,
* if already `pclosed', or waitpid returns an error.
*/
int
__pclose(FILE *iop)
{
struct pid *cur, *last;
int pstat;
pid_t pid;
/* Find the appropriate file pointer. */
for (last = NULL, cur = pidlist; cur; last = cur, cur = cur->next)
if (cur->fp == iop)
break;
if (cur == NULL)
return (-1);
(void)fclose(iop);
do {
pid = waitpid(cur->pid, &pstat, 0);
} while (pid == -1 && errno == EINTR);
/* Remove the entry from the linked list. */
if (last == NULL)
pidlist = cur->next;
else
last->next = cur->next;
free(cur);
return (pid == -1 ? -1 : pstat);
}

76
libcrecovery/system.c Normal file
View File

@ -0,0 +1,76 @@
/* $OpenBSD: system.c,v 1.8 2005/08/08 08:05:37 espie Exp $ */
/*
* Copyright (c) 1988 The Regents of the University of California.
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. Neither the name of the University nor the names of its contributors
* may be used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*/
#include <sys/types.h>
#include <signal.h>
#include <stdlib.h>
#include <unistd.h>
#include <paths.h>
#include <sys/wait.h>
#include "defines.h"
extern char **environ;
int
__system(const char *command)
{
pid_t pid;
sig_t intsave, quitsave;
sigset_t mask, omask;
int pstat;
char *argp[] = {"sh", "-c", NULL, NULL};
if (!command) /* just checking... */
return(1);
argp[2] = (char *)command;
sigemptyset(&mask);
sigaddset(&mask, SIGCHLD);
sigprocmask(SIG_BLOCK, &mask, &omask);
switch (pid = vfork()) {
case -1: /* error */
sigprocmask(SIG_SETMASK, &omask, NULL);
return(-1);
case 0: /* child */
sigprocmask(SIG_SETMASK, &omask, NULL);
execve(_PATH_BSHELL, argp, environ);
_exit(127);
}
intsave = (sig_t) bsd_signal(SIGINT, SIG_IGN);
quitsave = (sig_t) bsd_signal(SIGQUIT, SIG_IGN);
pid = waitpid(pid, (int *)&pstat, 0);
sigprocmask(SIG_SETMASK, &omask, NULL);
(void)bsd_signal(SIGINT, intsave);
(void)bsd_signal(SIGQUIT, quitsave);
return (pid == -1 ? -1 : pstat);
}

7
mounts.c
View File

@ -23,13 +23,6 @@
#include "mounts.h"
struct MountedVolume {
const char *device;
const char *mount_point;
const char *filesystem;
const char *flags;
};
typedef struct {
MountedVolume *volumes;
int volumes_allocd;

7
mounts.h
View File

@ -17,7 +17,12 @@
#ifndef MTDUTILS_MOUNTS_H_
#define MTDUTILS_MOUNTS_H_
typedef struct MountedVolume MountedVolume;
typedef struct {
const char *device;
const char *mount_point;
const char *filesystem;
const char *flags;
} MountedVolume;
int scan_mounted_volumes(void);

140
nandroid.c
View File

@ -37,10 +37,11 @@
#include "extendedcommands.h"
#include "nandroid.h"
#include "mounts.h"
#include "flashutils/flashutils.h"
#include <libgen.h>
void nandroid_generate_timestamp_path(const char* backup_path)
{
time_t t = time(NULL);
@ -57,25 +58,31 @@ void nandroid_generate_timestamp_path(const char* backup_path)
}
}
int print_and_error(const char* message) {
static int print_and_error(const char* message) {
ui_print("%s", message);
return 1;
}
int yaffs_files_total = 0;
int yaffs_files_count = 0;
void yaffs_callback(const char* filename)
static int yaffs_files_total = 0;
static int yaffs_files_count = 0;
static void yaffs_callback(const char* filename)
{
char* justfile = basename(filename);
if (strlen(justfile) < 30)
ui_print("%s", justfile);
if (filename == NULL)
return;
const char* justfile = basename(filename);
char tmp[PATH_MAX];
strcpy(tmp, justfile);
if (tmp[strlen(tmp) - 1] == '\n')
tmp[strlen(tmp) - 1] = NULL;
if (strlen(tmp) < 30)
ui_print("%s", tmp);
yaffs_files_count++;
if (yaffs_files_total != 0)
ui_set_progress((float)yaffs_files_count / (float)yaffs_files_total);
ui_reset_text_col();
}
void compute_directory_stats(const char* directory)
static void compute_directory_stats(const char* directory)
{
char tmp[PATH_MAX];
sprintf(tmp, "find %s | wc -l > /tmp/dircount", directory);
@ -90,12 +97,62 @@ void compute_directory_stats(const char* directory)
ui_show_progress(1, 0);
}
typedef void (*file_event_callback)(const char* filename);
typedef int (*nandroid_backup_handler)(const char* backup_path, const char* backup_file_image, const file_event_callback callback);
static int mkyaffs2image_wrapper(const char* backup_path, const char* backup_file_image, const file_event_callback callback) {
return mkyaffs2image(backup_path, backup_file_image, 0, callback);
}
static int tar_compress_wrapper(const char* backup_path, const char* backup_file_image, const file_event_callback callback) {
char tmp[PATH_MAX];
if (strcmp(backup_path, "/data") == 0 && volume_for_path("/sdcard") == NULL)
sprintf(tmp, "cd $(dirname %s) ; tar cvf %s --exclude 'media' $(basename %s) ; exit $?", backup_path, backup_file_image, backup_path);
else
sprintf(tmp, "cd $(dirname %s) ; tar cvf %s $(basename %s) ; exit $?", backup_path, backup_file_image, backup_path);
FILE *fp = __popen(tmp, "r");
if (fp == NULL) {
ui_print("Unable to execute tar.\n");
return -1;
}
while (fgets(tmp, PATH_MAX, fp) != NULL) {
tmp[PATH_MAX - 1] = NULL;
if (NULL != callback)
yaffs_callback(tmp);
}
return __pclose(fp);
}
static nandroid_backup_handler get_backup_handler(const char *backup_path) {
Volume *v = volume_for_path(backup_path);
if (v == NULL) {
ui_print("Unable to find volume.\n");
return NULL;
}
scan_mounted_volumes();
MountedVolume *mv = find_mounted_volume_by_mount_point(v->mount_point);
if (mv == NULL) {
ui_print("Unable to find mounted volume: %s\n", v->mount_point);
return NULL;
}
if (strcmp("yaffs2", mv->filesystem) == 0) {
return mkyaffs2image_wrapper;
}
return tar_compress_wrapper;
}
int nandroid_backup_partition_extended(const char* backup_path, const char* mount_point, int umount_when_finished) {
int ret = 0;
char* name = basename(mount_point);
struct stat file_info;
mkyaffs2image_callback callback = NULL;
file_event_callback callback = NULL;
if (0 != stat("/sdcard/clockworkmod/.hidenandroidprogress", &file_info)) {
callback = yaffs_callback;
}
@ -108,12 +165,17 @@ int nandroid_backup_partition_extended(const char* backup_path, const char* moun
compute_directory_stats(mount_point);
char tmp[PATH_MAX];
sprintf(tmp, "%s/%s.img", backup_path, name);
ret = mkyaffs2image(mount_point, tmp, 0, callback);
nandroid_backup_handler backup_handler = get_backup_handler(mount_point);
if (backup_handler == NULL) {
ui_print("Error finding an appropriate backup handler.\n");
return -2;
}
ret = backup_handler(mount_point, tmp, callback);
if (umount_when_finished) {
ensure_path_unmounted(mount_point);
}
if (0 != ret) {
ui_print("Error while making a yaffs2 image of %s!\n", mount_point);
ui_print("Error while making a backup image of %s!\n", mount_point);
return ret;
}
return 0;
@ -245,6 +307,51 @@ static void ensure_directory(const char* dir) {
__system(tmp);
}
typedef int (*nandroid_restore_handler)(const char* backup_file_image, const char* backup_path, file_event_callback callback);
static int unyaffs_wrapper(const char* backup_file_image, const char* backup_path, file_event_callback callback) {
return unyaffs(backup_file_image, backup_path, callback);
}
static int tar_extract_wrapper(const char* backup_file_image, const char* backup_path, file_event_callback callback) {
char tmp[PATH_MAX];
sprintf(tmp, "cd $(dirname %s) ; tar xvf %s ; exit $?", backup_path, backup_file_image);
char path[PATH_MAX];
FILE *fp = __popen(tmp, "r");
if (fp == NULL) {
ui_print("Unable to execute tar.\n");
return -1;
}
while (fgets(path, PATH_MAX, fp) != NULL) {
if (NULL != callback)
callback(path);
}
return __pclose(fp);
}
static nandroid_restore_handler get_restore_handler(const char *backup_path) {
Volume *v = volume_for_path(backup_path);
if (v == NULL) {
ui_print("Unable to find volume.\n");
return NULL;
}
scan_mounted_volumes();
MountedVolume *mv = find_mounted_volume_by_mount_point(v->mount_point);
if (mv == NULL) {
ui_print("Unable to find mounted volume: %s\n", v->mount_point);
return NULL;
}
if (strcmp("yaffs2", mv->filesystem) == 0) {
return unyaffs_wrapper;
}
return tar_extract_wrapper;
}
int nandroid_restore_partition_extended(const char* backup_path, const char* mount_point, int umount_when_finished) {
int ret = 0;
char* name = basename(mount_point);
@ -259,7 +366,7 @@ int nandroid_restore_partition_extended(const char* backup_path, const char* mou
ensure_directory(mount_point);
unyaffs_callback callback = NULL;
file_event_callback callback = NULL;
if (0 != stat("/sdcard/clockworkmod/.hidenandroidprogress", &file_info)) {
callback = yaffs_callback;
}
@ -281,7 +388,12 @@ int nandroid_restore_partition_extended(const char* backup_path, const char* mou
return ret;
}
if (0 != (ret = unyaffs(tmp, mount_point, callback))) {
nandroid_restore_handler restore_handler = get_restore_handler(mount_point);
if (restore_handler == NULL) {
ui_print("Error finding an appropriate restore handler.\n");
return -2;
}
if (0 != (ret = restore_handler(tmp, mount_point, callback))) {
ui_print("Error while restoring %s!\n", mount_point);
return ret;
}

19
roots.c
View File

@ -167,6 +167,16 @@ int try_mount(const char* device, const char* mount_point, const char* fs_type,
int ensure_path_mounted(const char* path) {
Volume* v = volume_for_path(path);
if (v == NULL) {
// no /sdcard? let's assume /data/media
if (strstr(path, "/sdcard") == path) {
LOGW("using /data/media, no /sdcard found.\n");
int ret;
if (0 != (ret = ensure_path_mounted("/data")))
return ret;
rmdir("/sdcard");
symlink("/data/media", "/sdcard");
return 0;
}
LOGE("unknown volume for path [%s]\n", path);
return -1;
}
@ -227,8 +237,17 @@ int ensure_path_mounted(const char* path) {
}
int ensure_path_unmounted(const char* path) {
// if we are using /data/media, do not ever unmount volumes /data or /sdcard
if (volume_for_path("/sdcard") == NULL && (strstr(path, "/sdcard") == path || strstr(path, "/data") == path)) {
return 0;
}
Volume* v = volume_for_path(path);
if (v == NULL) {
// no /sdcard? let's assume /data/media
if (strstr(path, "/sdcard") == path) {
return ensure_path_unmounted("/data");
}
LOGE("unknown volume for path [%s]\n", path);
return -1;
}