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Commit 03744464 authored by Andres Morales's avatar Andres Morales
Browse files

Revert "Erase PST partition if its marked to be erased." 

This now gets done at the framework level.
Doing it here breaks the signature on the partition.

This reverts commit ee193879.

Bug: 19967123
Change-Id: I447b926b733ca145f11a916d9569ce39889db627
parent 65ae9e1e

recovery.cpp

+0 −2
Original line number Diff line number Diff line
@@ -693,7 +693,6 @@ static void wipe_data(int confirm, Device* device) { 
    device->WipeData();

    erase_volume("/data");

    erase_volume("/cache");

    erase_persistent_partition();

    ui->Print("Data wipe complete.\n");

}
@@ -1100,7 +1099,6 @@ main(int argc, char **argv) { 
        if (device->WipeData()) status = INSTALL_ERROR;

        if (erase_volume("/data")) status = INSTALL_ERROR;

        if (wipe_cache && erase_volume("/cache")) status = INSTALL_ERROR;

        if (erase_persistent_partition() == -1 ) status = INSTALL_ERROR;

        if (status != INSTALL_SUCCESS) ui->Print("Data wipe failed.\n");

    } else if (wipe_cache) {

        if (wipe_cache && erase_volume("/cache")) status = INSTALL_ERROR;

roots.cpp

+0 −37
Original line number Diff line number Diff line
@@ -39,8 +39,6 @@ static struct fstab *fstab = NULL; 


extern struct selabel_handle *sehandle;



static const char* PERSISTENT_PATH = "/persistent";



void load_volume_table()

{

    int i;
@@ -266,41 +264,6 @@ int format_volume(const char* volume) { 
    return -1;

}



int erase_persistent_partition() {

    Volume *v = volume_for_path(PERSISTENT_PATH);

    if (v == NULL) {

        // most devices won't have /persistent, so this is not an error.

        return 0;

    }



    int fd = open(v->blk_device, O_RDWR);

    uint64_t size = get_file_size(fd);

    if (size == 0) {

        LOGE("failed to stat size of /persistent\n");

        close(fd);

        return -1;

    }



    char oem_unlock_enabled;

    lseek(fd, size - 1, SEEK_SET);

    read(fd, &oem_unlock_enabled, 1);



    if (oem_unlock_enabled) {

        if (wipe_block_device(fd, size)) {

           LOGE("error wiping /persistent: %s\n", strerror(errno));

           close(fd);

           return -1;

        }



        lseek(fd, size - 1, SEEK_SET);

        write(fd, &oem_unlock_enabled, 1);

    }



    close(fd);



    return (int) oem_unlock_enabled;

}



int setup_install_mounts() {

    if (fstab == NULL) {

        LOGE("can't set up install mounts: no fstab loaded\n");

roots.h

+0 −5
Original line number Diff line number Diff line
@@ -46,11 +46,6 @@ int format_volume(const char* volume); 
// mounted (/tmp and /cache) are mounted.  Returns 0 on success.

int setup_install_mounts();



// Conditionally wipes the /persistent partition if it's marked

// to wipe. Returns -1 on failure, 1 if the partition was wiped

// and 0 if the partition was not wiped.

int erase_persistent_partition();



#ifdef __cplusplus

}

#endif