auto import from //depot/cupcake/@135843

1 files changed, 0 insertions, 370 deletions

diff --git a/roots.c b/roots.c
deleted file mode 100644
index 6a6cf8a..0000000
--- a/roots.c
+++ /dev/null
@@ -1,370 +0,0 @@
-/*
- * 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.
- */
-
-#include <errno.h>
-#include <stdlib.h>
-#include <sys/mount.h>
-#include <sys/stat.h>
-#include <sys/types.h>
-#include <unistd.h>
-
-#include "mtdutils/mtdutils.h"
-#include "mtdutils/mounts.h"
-#include "minzip/Zip.h"
-#include "roots.h"
-#include "common.h"
-
-typedef struct {
-    const char *name;
-    const char *device;
-    const char *device2;  // If the first one doesn't work (may be NULL)
-    const char *partition_name;
-    const char *mount_point;
-    const char *filesystem;
-} RootInfo;
-
-/* Canonical pointers.
-xxx may just want to use enums
- */
-static const char g_mtd_device[] = "@\0g_mtd_device";
-static const char g_raw[] = "@\0g_raw";
-static const char g_package_file[] = "@\0g_package_file";
-
-static RootInfo g_roots[] = {
-    { "BOOT:", g_mtd_device, NULL, "boot", NULL, g_raw },
-    { "CACHE:", g_mtd_device, NULL, "cache", "/cache", "yaffs2" },
-    { "DATA:", g_mtd_device, NULL, "userdata", "/data", "yaffs2" },
-    { "MISC:", g_mtd_device, NULL, "misc", NULL, g_raw },
-    { "PACKAGE:", NULL, NULL, NULL, NULL, g_package_file },
-    { "RECOVERY:", g_mtd_device, NULL, "recovery", "/", g_raw },
-    { "SDCARD:", "/dev/block/mmcblk0p1", "/dev/block/mmcblk0", NULL, "/sdcard", "vfat" },
-    { "SYSTEM:", g_mtd_device, NULL, "system", "/system", "yaffs2" },
-    { "TMP:", NULL, NULL, NULL, "/tmp", NULL },
-};
-#define NUM_ROOTS (sizeof(g_roots) / sizeof(g_roots[0]))
-
-// TODO: for SDCARD:, try /dev/block/mmcblk0 if mmcblk0p1 fails
-
-static const RootInfo *
-get_root_info_for_path(const char *root_path)
-{
-    const char *c;
-
-    /* Find the first colon.
-     */
-    c = root_path;
-    while (*c != '\0' && *c != ':') {
-        c++;
-    }
-    if (*c == '\0') {
-        return NULL;
-    }
-    size_t len = c - root_path + 1;
-    size_t i;
-    for (i = 0; i < NUM_ROOTS; i++) {
-        RootInfo *info = &g_roots[i];
-        if (strncmp(info->name, root_path, len) == 0) {
-            return info;
-        }
-    }
-    return NULL;
-}
-
-static const ZipArchive *g_package = NULL;
-static char *g_package_path = NULL;
-
-int
-register_package_root(const ZipArchive *package, const char *package_path)
-{
-    if (package != NULL) {
-        package_path = strdup(package_path);
-        if (package_path == NULL) {
-            return -1;
-        }
-        g_package_path = (char *)package_path;
-    } else {
-        free(g_package_path);
-        g_package_path = NULL;
-    }
-    g_package = package;
-    return 0;
-}
-
-int
-is_package_root_path(const char *root_path)
-{
-    const RootInfo *info = get_root_info_for_path(root_path);
-    return info != NULL && info->filesystem == g_package_file;
-}
-
-const char *
-translate_package_root_path(const char *root_path,
-        char *out_buf, size_t out_buf_len, const ZipArchive **out_package)
-{
-    const RootInfo *info = get_root_info_for_path(root_path);
-    if (info == NULL || info->filesystem != g_package_file) {
-        return NULL;
-    }
-
-    /* Strip the package root off of the path.
-     */
-    size_t root_len = strlen(info->name);
-    root_path += root_len;
-    size_t root_path_len = strlen(root_path);
-
-    if (out_buf_len < root_path_len + 1) {
-        return NULL;
-    }
-    strcpy(out_buf, root_path);
-    *out_package = g_package;
-    return out_buf;
-}
-
-/* Takes a string like "SYSTEM:lib" and turns it into a string
- * like "/system/lib".  The translated path is put in out_buf,
- * and out_buf is returned if the translation succeeded.
- */
-const char *
-translate_root_path(const char *root_path, char *out_buf, size_t out_buf_len)
-{
-    if (out_buf_len < 1) {
-        return NULL;
-    }
-
-    const RootInfo *info = get_root_info_for_path(root_path);
-    if (info == NULL || info->mount_point == NULL) {
-        return NULL;
-    }
-
-    /* Find the relative part of the non-root part of the path.
-     */
-    root_path += strlen(info->name);  // strip off the "root:"
-    while (*root_path != '\0' && *root_path == '/') {
-        root_path++;
-    }
-
-    size_t mp_len = strlen(info->mount_point);
-    size_t rp_len = strlen(root_path);
-    if (mp_len + 1 + rp_len + 1 > out_buf_len) {
-        return NULL;
-    }
-
-    /* Glue the mount point to the relative part of the path.
-     */
-    memcpy(out_buf, info->mount_point, mp_len);
-    if (out_buf[mp_len - 1] != '/') out_buf[mp_len++] = '/';
-
-    memcpy(out_buf + mp_len, root_path, rp_len);
-    out_buf[mp_len + rp_len] = '\0';
-
-    return out_buf;
-}
-
-static int
-internal_root_mounted(const RootInfo *info)
-{
-    if (info->mount_point == NULL) {
-        return -1;
-    }
-//xxx if TMP: (or similar) just say "yes"
-
-    /* See if this root is already mounted.
-     */
-    int ret = scan_mounted_volumes();
-    if (ret < 0) {
-        return ret;
-    }
-    const MountedVolume *volume;
-    volume = find_mounted_volume_by_mount_point(info->mount_point);
-    if (volume != NULL) {
-        /* It's already mounted.
-         */
-        return 0;
-    }
-    return -1;
-}
-
-int
-is_root_path_mounted(const char *root_path)
-{
-    const RootInfo *info = get_root_info_for_path(root_path);
-    if (info == NULL) {
-        return -1;
-    }
-    return internal_root_mounted(info) >= 0;
-}
-
-int
-ensure_root_path_mounted(const char *root_path)
-{
-    const RootInfo *info = get_root_info_for_path(root_path);
-    if (info == NULL) {
-        return -1;
-    }
-
-    int ret = internal_root_mounted(info);
-    if (ret >= 0) {
-        /* It's already mounted.
-         */
-        return 0;
-    }
-
-    /* It's not mounted.
-     */
-    if (info->device == g_mtd_device) {
-        if (info->partition_name == NULL) {
-            return -1;
-        }
-//TODO: make the mtd stuff scan once when it needs to
-        mtd_scan_partitions();
-        const MtdPartition *partition;
-        partition = mtd_find_partition_by_name(info->partition_name);
-        if (partition == NULL) {
-            return -1;
-        }
-        return mtd_mount_partition(partition, info->mount_point,
-                info->filesystem, 0);
-    }
-
-    if (info->device == NULL || info->mount_point == NULL ||
-        info->filesystem == NULL ||
-        info->filesystem == g_raw ||
-        info->filesystem == g_package_file) {
-        return -1;
-    }
-
-    mkdir(info->mount_point, 0755);  // in case it doesn't already exist
-    if (mount(info->device, info->mount_point, info->filesystem,
-            MS_NOATIME | MS_NODEV | MS_NODIRATIME, "")) {
-        if (info->device2 == NULL) {
-            LOGE("Can't mount %s\n(%s)\n", info->device, strerror(errno));
-            return -1;
-        } else if (mount(info->device2, info->mount_point, info->filesystem,
-                MS_NOATIME | MS_NODEV | MS_NODIRATIME, "")) {
-            LOGE("Can't mount %s (or %s)\n(%s)\n",
-                    info->device, info->device2, strerror(errno));
-            return -1;
-        }
-    }
-    return 0;
-}
-
-int
-ensure_root_path_unmounted(const char *root_path)
-{
-    const RootInfo *info = get_root_info_for_path(root_path);
-    if (info == NULL) {
-        return -1;
-    }
-    if (info->mount_point == NULL) {
-        /* This root can't be mounted, so by definition it isn't.
-         */
-        return 0;
-    }
-//xxx if TMP: (or similar) just return error
-
-    /* See if this root is already mounted.
-     */
-    int ret = scan_mounted_volumes();
-    if (ret < 0) {
-        return ret;
-    }
-    const MountedVolume *volume;
-    volume = find_mounted_volume_by_mount_point(info->mount_point);
-    if (volume == NULL) {
-        /* It's not mounted.
-         */
-        return 0;
-    }
-
-    return unmount_mounted_volume(volume);
-}
-
-const MtdPartition *
-get_root_mtd_partition(const char *root_path)
-{
-    const RootInfo *info = get_root_info_for_path(root_path);
-    if (info == NULL || info->device != g_mtd_device ||
-            info->partition_name == NULL)
-    {
-        return NULL;
-    }
-    mtd_scan_partitions();
-    return mtd_find_partition_by_name(info->partition_name);
-}
-
-int
-format_root_device(const char *root)
-{
-    /* Be a little safer here; require that "root" is just
-     * a device with no relative path after it.
-     */
-    const char *c = root;
-    while (*c != '\0' && *c != ':') {
-        c++;
-    }
-    if (c[0] != ':' || c[1] != '\0') {
-        LOGW("format_root_device: bad root name \"%s\"\n", root);
-        return -1;
-    }
-
-    const RootInfo *info = get_root_info_for_path(root);
-    if (info == NULL || info->device == NULL) {
-        LOGW("format_root_device: can't resolve \"%s\"\n", root);
-        return -1;
-    }
-    if (info->mount_point != NULL) {
-        /* Don't try to format a mounted device.
-         */
-        int ret = ensure_root_path_unmounted(root);
-        if (ret < 0) {
-            LOGW("format_root_device: can't unmount \"%s\"\n", root);
-            return ret;
-        }
-    }
-
-    /* Format the device.
-     */
-    if (info->device == g_mtd_device) {
-        mtd_scan_partitions();
-        const MtdPartition *partition;
-        partition = mtd_find_partition_by_name(info->partition_name);
-        if (partition == NULL) {
-            LOGW("format_root_device: can't find mtd partition \"%s\"\n",
-                    info->partition_name);
-            return -1;
-        }
-        if (info->filesystem == g_raw || !strcmp(info->filesystem, "yaffs2")) {
-            MtdWriteContext *write = mtd_write_partition(partition);
-            if (write == NULL) {
-                LOGW("format_root_device: can't open \"%s\"\n", root);
-                return -1;
-            } else if (mtd_erase_blocks(write, -1) == (off_t) -1) {
-                LOGW("format_root_device: can't erase \"%s\"\n", root);
-                mtd_write_close(write);
-                return -1;
-            } else if (mtd_write_close(write)) {
-                LOGW("format_root_device: can't close \"%s\"\n", root);
-                return -1;
-            } else {
-                return 0;
-            }
-        }
-    }
-//TODO: handle other device types (sdcard, etc.)
-    LOGW("format_root_device: can't handle non-mtd device \"%s\"\n", root);
-    return -1;
-}