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Commit 51e8b03f authored by Patrick Tjin's avatar Patrick Tjin
Browse files

fastboot: add flashing bootloader commands 



add the following commands:
    flashing unlock_bootloader
    flashing lock_bootloader
    flashing get_unlock_bootloader_nonce

Change-Id: Ia4f56ebdcb6785a5196cc669d68da1553ed53c58
Signed-off-by: default avatarPatrick Tjin <pattjin@google.com>
parent 8bc53c12

fastboot/fastboot.cpp

+44 −12
Original line number Diff line number Diff line
@@ -279,17 +279,22 @@ void usage(void) 
            "  flashall                                 flash boot, system, vendor and if found,\n"

            "                                           recovery\n"

            "  flash <partition> [ <filename> ]         write a file to a flash partition\n"

            "  flashing lock                            locks the device. Prevents flashing"

            "  flashing lock                            locks the device. Prevents flashing\n"

            "                                           partitions\n"

            "  flashing unlock                          unlocks the device. Allows user to"

            "                                           flash any partition except the ones"

            "  flashing unlock                          unlocks the device. Allows user to\n"

            "                                           flash any partition except the ones\n"

            "                                           that are related to bootloader\n"

            "  flashing lock_critical                   Prevents flashing bootloader related"

            "  flashing lock_critical                   Prevents flashing bootloader related\n"

            "                                           partitions\n"

            "  flashing unlock_critical                 Enables flashing bootloader related"

            "  flashing unlock_critical                 Enables flashing bootloader related\n"

            "                                           partitions\n"

            "  flashing get_unlock_ability              Queries bootloader to see if the"

            "  flashing get_unlock_ability              Queries bootloader to see if the\n"

            "                                           device is unlocked\n"

            "  flashing get_unlock_bootloader_nonce     Queries the bootloader to get the\n"

            "                                           unlock nonce\n"

            "  flashing unlock_bootloader <request>     Issue unlock bootloader using request\n"

            "  flashing lock_bootloader                 Locks the bootloader to prevent\n"

            "                                           bootloader version rollback\n"

            "  erase <partition>                        erase a flash partition\n"

            "  format[:[<fs type>][:[<size>]] <partition> format a flash partition.\n"

            "                                           Can override the fs type and/or\n"
@@ -831,6 +836,27 @@ void do_flashall(usb_handle *usb, int erase_first) 
#define skip(n) do { argc -= (n); argv += (n); } while (0)

#define require(n) do { if (argc < (n)) {usage(); exit(1);}} while (0)



int do_bypass_unlock_command(int argc, char **argv)

{

    unsigned sz;

    void *data;



    if (argc <= 2) return 0;

    skip(2);



    /*

     * Process unlock_bootloader, we have to load the message file

     * and send that to the remote device.

     */

    require(1);

    data = load_file(*argv, &sz);

    if (data == 0) die("could not load '%s': %s", *argv, strerror(errno));

    fb_queue_download("unlock_message", data, sz);

    fb_queue_command("flashing unlock_bootloader", "unlocking bootloader");

    skip(1);

    return 0;

}



int do_oem_command(int argc, char **argv)

{

    char command[256];
@@ -1230,12 +1256,18 @@ int main(int argc, char **argv) 
            wants_reboot = 1;

        } else if(!strcmp(*argv, "oem")) {

            argc = do_oem_command(argc, argv);

        } else if(!strcmp(*argv, "flashing") && argc == 2) {

            if(!strcmp(*(argv+1), "unlock") || !strcmp(*(argv+1), "lock")

               || !strcmp(*(argv+1), "unlock_critical")

               || !strcmp(*(argv+1), "lock_critical")

               || !strcmp(*(argv+1), "get_unlock_ability")) {

        } else if(!strcmp(*argv, "flashing")) {

            if (argc == 2 && (!strcmp(*(argv+1), "unlock") ||

                              !strcmp(*(argv+1), "lock") ||

                              !strcmp(*(argv+1), "unlock_critical") ||

                              !strcmp(*(argv+1), "lock_critical") ||

                              !strcmp(*(argv+1), "get_unlock_ability") ||

                              !strcmp(*(argv+1), "get_unlock_bootloader_nonce") ||

                              !strcmp(*(argv+1), "lock_bootloader"))) {

                argc = do_oem_command(argc, argv);

            } else

            if (argc == 3 && !strcmp(*(argv+1), "unlock_bootloader")) {

                argc = do_bypass_unlock_command(argc, argv);

            } else {

              usage();

              return 1;