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      1 /*
      2  * Copyright (C) 2008 The Android Open Source Project
      3  * All rights reserved.
      4  *
      5  * Redistribution and use in source and binary forms, with or without
      6  * modification, are permitted provided that the following conditions
      7  * are met:
      8  *  * Redistributions of source code must retain the above copyright
      9  *    notice, this list of conditions and the following disclaimer.
     10  *  * Redistributions in binary form must reproduce the above copyright
     11  *    notice, this list of conditions and the following disclaimer in
     12  *    the documentation and/or other materials provided with the
     13  *    distribution.
     14  *
     15  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
     16  * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
     17  * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
     18  * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
     19  * COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
     20  * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
     21  * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
     22  * OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
     23  * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
     24  * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
     25  * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
     26  * SUCH DAMAGE.
     27  */
     28 
     29 #include <stdio.h>
     30 #include <stdlib.h>
     31 #include <stdarg.h>
     32 #include <string.h>
     33 #include <errno.h>
     34 #include <fcntl.h>
     35 #include <unistd.h>
     36 #include <limits.h>
     37 #include <ctype.h>
     38 
     39 #include <sys/time.h>
     40 #include <bootimg.h>
     41 #include <zipfile/zipfile.h>
     42 
     43 #include "fastboot.h"
     44 
     45 char cur_product[FB_RESPONSE_SZ + 1];
     46 
     47 void bootimg_set_cmdline(boot_img_hdr *h, const char *cmdline);
     48 
     49 boot_img_hdr *mkbootimg(void *kernel, unsigned kernel_size,
     50                         void *ramdisk, unsigned ramdisk_size,
     51                         void *second, unsigned second_size,
     52                         unsigned page_size, unsigned base,
     53                         unsigned *bootimg_size);
     54 
     55 static usb_handle *usb = 0;
     56 static const char *serial = 0;
     57 static const char *product = 0;
     58 static const char *cmdline = 0;
     59 static int wipe_data = 0;
     60 static unsigned short vendor_id = 0;
     61 
     62 static unsigned base_addr = 0x10000000;
     63 
     64 void die(const char *fmt, ...)
     65 {
     66     va_list ap;
     67     va_start(ap, fmt);
     68     fprintf(stderr,"error: ");
     69     vfprintf(stderr, fmt, ap);
     70     fprintf(stderr,"\n");
     71     va_end(ap);
     72     exit(1);
     73 }
     74 
     75 void get_my_path(char *path);
     76 
     77 char *find_item(const char *item, const char *product)
     78 {
     79     char *dir;
     80     char *fn;
     81     char path[PATH_MAX + 128];
     82 
     83     if(!strcmp(item,"boot")) {
     84         fn = "boot.img";
     85     } else if(!strcmp(item,"recovery")) {
     86         fn = "recovery.img";
     87     } else if(!strcmp(item,"system")) {
     88         fn = "system.img";
     89     } else if(!strcmp(item,"userdata")) {
     90         fn = "userdata.img";
     91     } else if(!strcmp(item,"info")) {
     92         fn = "android-info.txt";
     93     } else {
     94         fprintf(stderr,"unknown partition '%s'\n", item);
     95         return 0;
     96     }
     97 
     98     if(product) {
     99         get_my_path(path);
    100         sprintf(path + strlen(path),
    101                 "../../../target/product/%s/%s", product, fn);
    102         return strdup(path);
    103     }
    104 
    105     dir = getenv("ANDROID_PRODUCT_OUT");
    106     if((dir == 0) || (dir[0] == 0)) {
    107         die("neither -p product specified nor ANDROID_PRODUCT_OUT set");
    108         return 0;
    109     }
    110 
    111     sprintf(path, "%s/%s", dir, fn);
    112     return strdup(path);
    113 }
    114 
    115 #ifdef _WIN32
    116 void *load_file(const char *fn, unsigned *_sz);
    117 #else
    118 void *load_file(const char *fn, unsigned *_sz)
    119 {
    120     char *data;
    121     int sz;
    122     int fd;
    123 
    124     data = 0;
    125     fd = open(fn, O_RDONLY);
    126     if(fd < 0) return 0;
    127 
    128     sz = lseek(fd, 0, SEEK_END);
    129     if(sz < 0) goto oops;
    130 
    131     if(lseek(fd, 0, SEEK_SET) != 0) goto oops;
    132 
    133     data = (char*) malloc(sz);
    134     if(data == 0) goto oops;
    135 
    136     if(read(fd, data, sz) != sz) goto oops;
    137     close(fd);
    138 
    139     if(_sz) *_sz = sz;
    140     return data;
    141 
    142 oops:
    143     close(fd);
    144     if(data != 0) free(data);
    145     return 0;
    146 }
    147 #endif
    148 
    149 int match_fastboot(usb_ifc_info *info)
    150 {
    151     if(!(vendor_id && (info->dev_vendor == vendor_id)) &&
    152        (info->dev_vendor != 0x18d1) &&  // Google
    153        (info->dev_vendor != 0x0451) &&
    154        (info->dev_vendor != 0x0502) &&
    155        (info->dev_vendor != 0x0fce) &&  // Sony Ericsson
    156        (info->dev_vendor != 0x05c6) &&  // Qualcomm
    157        (info->dev_vendor != 0x22b8) &&  // Motorola
    158        (info->dev_vendor != 0x0955) &&  // Nvidia
    159        (info->dev_vendor != 0x413c) &&  // DELL
    160        (info->dev_vendor != 0x0bb4))    // HTC
    161             return -1;
    162     if(info->ifc_class != 0xff) return -1;
    163     if(info->ifc_subclass != 0x42) return -1;
    164     if(info->ifc_protocol != 0x03) return -1;
    165     // require matching serial number if a serial number is specified
    166     // at the command line with the -s option.
    167     if (serial && strcmp(serial, info->serial_number) != 0) return -1;
    168     return 0;
    169 }
    170 
    171 int list_devices_callback(usb_ifc_info *info)
    172 {
    173     if (match_fastboot(info) == 0) {
    174         char* serial = info->serial_number;
    175         if (!info->writable) {
    176             serial = "no permissions"; // like "adb devices"
    177         }
    178         if (!serial[0]) {
    179             serial = "????????????";
    180         }
    181         // output compatible with "adb devices"
    182         printf("%s\tfastboot\n", serial);
    183     }
    184 
    185     return -1;
    186 }
    187 
    188 usb_handle *open_device(void)
    189 {
    190     static usb_handle *usb = 0;
    191     int announce = 1;
    192 
    193     if(usb) return usb;
    194 
    195     for(;;) {
    196         usb = usb_open(match_fastboot);
    197         if(usb) return usb;
    198         if(announce) {
    199             announce = 0;
    200             fprintf(stderr,"< waiting for device >\n");
    201         }
    202         sleep(1);
    203     }
    204 }
    205 
    206 void list_devices(void) {
    207     // We don't actually open a USB device here,
    208     // just getting our callback called so we can
    209     // list all the connected devices.
    210     usb_open(list_devices_callback);
    211 }
    212 
    213 void usage(void)
    214 {
    215     fprintf(stderr,
    216 /*           1234567890123456789012345678901234567890123456789012345678901234567890123456 */
    217             "usage: fastboot [ <option> ] <command>\n"
    218             "\n"
    219             "commands:\n"
    220             "  update <filename>                        reflash device from update.zip\n"
    221             "  flashall                                 flash boot + recovery + system\n"
    222             "  flash <partition> [ <filename> ]         write a file to a flash partition\n"
    223             "  erase <partition>                        erase a flash partition\n"
    224             "  getvar <variable>                        display a bootloader variable\n"
    225             "  boot <kernel> [ <ramdisk> ]              download and boot kernel\n"
    226             "  flash:raw boot <kernel> [ <ramdisk> ]    create bootimage and flash it\n"
    227             "  devices                                  list all connected devices\n"
    228             "  continue                                 continue with autoboot\n"
    229             "  reboot                                   reboot device normally\n"
    230             "  reboot-bootloader                        reboot device into bootloader\n"
    231             "  help                                     show this help message\n"
    232             "\n"
    233             "options:\n"
    234             "  -w                                       erase userdata and cache\n"
    235             "  -s <serial number>                       specify device serial number\n"
    236             "  -p <product>                             specify product name\n"
    237             "  -c <cmdline>                             override kernel commandline\n"
    238             "  -i <vendor id>                           specify a custom USB vendor id\n"
    239             "  -b <base_addr>                           specify a custom kernel base address\n"
    240             "  -n <page size>                           specify the nand page size. default: 2048\n"
    241         );
    242 }
    243 
    244 void *load_bootable_image(unsigned page_size, const char *kernel, const char *ramdisk,
    245                           unsigned *sz, const char *cmdline)
    246 {
    247     void *kdata = 0, *rdata = 0;
    248     unsigned ksize = 0, rsize = 0;
    249     void *bdata;
    250     unsigned bsize;
    251 
    252     if(kernel == 0) {
    253         fprintf(stderr, "no image specified\n");
    254         return 0;
    255     }
    256 
    257     kdata = load_file(kernel, &ksize);
    258     if(kdata == 0) {
    259         fprintf(stderr, "cannot load '%s'\n", kernel);
    260         return 0;
    261     }
    262 
    263         /* is this actually a boot image? */
    264     if(!memcmp(kdata, BOOT_MAGIC, BOOT_MAGIC_SIZE)) {
    265         if(cmdline) bootimg_set_cmdline((boot_img_hdr*) kdata, cmdline);
    266 
    267         if(ramdisk) {
    268             fprintf(stderr, "cannot boot a boot.img *and* ramdisk\n");
    269             return 0;
    270         }
    271 
    272         *sz = ksize;
    273         return kdata;
    274     }
    275 
    276     if(ramdisk) {
    277         rdata = load_file(ramdisk, &rsize);
    278         if(rdata == 0) {
    279             fprintf(stderr,"cannot load '%s'\n", ramdisk);
    280             return  0;
    281         }
    282     }
    283 
    284     fprintf(stderr,"creating boot image...\n");
    285     bdata = mkbootimg(kdata, ksize, rdata, rsize, 0, 0, page_size, base_addr, &bsize);
    286     if(bdata == 0) {
    287         fprintf(stderr,"failed to create boot.img\n");
    288         return 0;
    289     }
    290     if(cmdline) bootimg_set_cmdline((boot_img_hdr*) bdata, cmdline);
    291     fprintf(stderr,"creating boot image - %d bytes\n", bsize);
    292     *sz = bsize;
    293 
    294     return bdata;
    295 }
    296 
    297 void *unzip_file(zipfile_t zip, const char *name, unsigned *sz)
    298 {
    299     void *data;
    300     zipentry_t entry;
    301     unsigned datasz;
    302 
    303     entry = lookup_zipentry(zip, name);
    304     if (entry == NULL) {
    305         fprintf(stderr, "archive does not contain '%s'\n", name);
    306         return 0;
    307     }
    308 
    309     *sz = get_zipentry_size(entry);
    310 
    311     datasz = *sz * 1.001;
    312     data = malloc(datasz);
    313 
    314     if(data == 0) {
    315         fprintf(stderr, "failed to allocate %d bytes\n", *sz);
    316         return 0;
    317     }
    318 
    319     if (decompress_zipentry(entry, data, datasz)) {
    320         fprintf(stderr, "failed to unzip '%s' from archive\n", name);
    321         free(data);
    322         return 0;
    323     }
    324 
    325     return data;
    326 }
    327 
    328 static char *strip(char *s)
    329 {
    330     int n;
    331     while(*s && isspace(*s)) s++;
    332     n = strlen(s);
    333     while(n-- > 0) {
    334         if(!isspace(s[n])) break;
    335         s[n] = 0;
    336     }
    337     return s;
    338 }
    339 
    340 #define MAX_OPTIONS 32
    341 static int setup_requirement_line(char *name)
    342 {
    343     char *val[MAX_OPTIONS];
    344     const char **out;
    345     char *prod = NULL;
    346     unsigned n, count;
    347     char *x;
    348     int invert = 0;
    349 
    350     if (!strncmp(name, "reject ", 7)) {
    351         name += 7;
    352         invert = 1;
    353     } else if (!strncmp(name, "require ", 8)) {
    354         name += 8;
    355         invert = 0;
    356     } else if (!strncmp(name, "require-for-product:", 20)) {
    357         // Get the product and point name past it
    358         prod = name + 20;
    359         name = strchr(name, ' ');
    360         if (!name) return -1;
    361         *name = 0;
    362         name += 1;
    363         invert = 0;
    364     }
    365 
    366     x = strchr(name, '=');
    367     if (x == 0) return 0;
    368     *x = 0;
    369     val[0] = x + 1;
    370 
    371     for(count = 1; count < MAX_OPTIONS; count++) {
    372         x = strchr(val[count - 1],'|');
    373         if (x == 0) break;
    374         *x = 0;
    375         val[count] = x + 1;
    376     }
    377 
    378     name = strip(name);
    379     for(n = 0; n < count; n++) val[n] = strip(val[n]);
    380 
    381     name = strip(name);
    382     if (name == 0) return -1;
    383 
    384         /* work around an unfortunate name mismatch */
    385     if (!strcmp(name,"board")) name = "product";
    386 
    387     out = malloc(sizeof(char*) * count);
    388     if (out == 0) return -1;
    389 
    390     for(n = 0; n < count; n++) {
    391         out[n] = strdup(strip(val[n]));
    392         if (out[n] == 0) return -1;
    393     }
    394 
    395     fb_queue_require(prod, name, invert, n, out);
    396     return 0;
    397 }
    398 
    399 static void setup_requirements(char *data, unsigned sz)
    400 {
    401     char *s;
    402 
    403     s = data;
    404     while (sz-- > 0) {
    405         if(*s == '\n') {
    406             *s++ = 0;
    407             if (setup_requirement_line(data)) {
    408                 die("out of memory");
    409             }
    410             data = s;
    411         } else {
    412             s++;
    413         }
    414     }
    415 }
    416 
    417 void queue_info_dump(void)
    418 {
    419     fb_queue_notice("--------------------------------------------");
    420     fb_queue_display("version-bootloader", "Bootloader Version...");
    421     fb_queue_display("version-baseband",   "Baseband Version.....");
    422     fb_queue_display("serialno",           "Serial Number........");
    423     fb_queue_notice("--------------------------------------------");
    424 }
    425 
    426 void do_update_signature(zipfile_t zip, char *fn)
    427 {
    428     void *data;
    429     unsigned sz;
    430     data = unzip_file(zip, fn, &sz);
    431     if (data == 0) return;
    432     fb_queue_download("signature", data, sz);
    433     fb_queue_command("signature", "installing signature");
    434 }
    435 
    436 void do_update(char *fn)
    437 {
    438     void *zdata;
    439     unsigned zsize;
    440     void *data;
    441     unsigned sz;
    442     zipfile_t zip;
    443 
    444     queue_info_dump();
    445 
    446     fb_queue_query_save("product", cur_product, sizeof(cur_product));
    447 
    448     zdata = load_file(fn, &zsize);
    449     if (zdata == 0) die("failed to load '%s'", fn);
    450 
    451     zip = init_zipfile(zdata, zsize);
    452     if(zip == 0) die("failed to access zipdata in '%s'");
    453 
    454     data = unzip_file(zip, "android-info.txt", &sz);
    455     if (data == 0) {
    456         char *tmp;
    457             /* fallback for older zipfiles */
    458         data = unzip_file(zip, "android-product.txt", &sz);
    459         if ((data == 0) || (sz < 1)) {
    460             die("update package has no android-info.txt or android-product.txt");
    461         }
    462         tmp = malloc(sz + 128);
    463         if (tmp == 0) die("out of memory");
    464         sprintf(tmp,"board=%sversion-baseband=0.66.04.19\n",(char*)data);
    465         data = tmp;
    466         sz = strlen(tmp);
    467     }
    468 
    469     setup_requirements(data, sz);
    470 
    471     data = unzip_file(zip, "boot.img", &sz);
    472     if (data == 0) die("update package missing boot.img");
    473     do_update_signature(zip, "boot.sig");
    474     fb_queue_flash("boot", data, sz);
    475 
    476     data = unzip_file(zip, "recovery.img", &sz);
    477     if (data != 0) {
    478         do_update_signature(zip, "recovery.sig");
    479         fb_queue_flash("recovery", data, sz);
    480     }
    481 
    482     data = unzip_file(zip, "system.img", &sz);
    483     if (data == 0) die("update package missing system.img");
    484     do_update_signature(zip, "system.sig");
    485     fb_queue_flash("system", data, sz);
    486 }
    487 
    488 void do_send_signature(char *fn)
    489 {
    490     void *data;
    491     unsigned sz;
    492     char *xtn;
    493 
    494     xtn = strrchr(fn, '.');
    495     if (!xtn) return;
    496     if (strcmp(xtn, ".img")) return;
    497 
    498     strcpy(xtn,".sig");
    499     data = load_file(fn, &sz);
    500     strcpy(xtn,".img");
    501     if (data == 0) return;
    502     fb_queue_download("signature", data, sz);
    503     fb_queue_command("signature", "installing signature");
    504 }
    505 
    506 void do_flashall(void)
    507 {
    508     char *fname;
    509     void *data;
    510     unsigned sz;
    511 
    512     queue_info_dump();
    513 
    514     fb_queue_query_save("product", cur_product, sizeof(cur_product));
    515 
    516     fname = find_item("info", product);
    517     if (fname == 0) die("cannot find android-info.txt");
    518     data = load_file(fname, &sz);
    519     if (data == 0) die("could not load android-info.txt");
    520     setup_requirements(data, sz);
    521 
    522     fname = find_item("boot", product);
    523     data = load_file(fname, &sz);
    524     if (data == 0) die("could not load boot.img");
    525     do_send_signature(fname);
    526     fb_queue_flash("boot", data, sz);
    527 
    528     fname = find_item("recovery", product);
    529     data = load_file(fname, &sz);
    530     if (data != 0) {
    531         do_send_signature(fname);
    532         fb_queue_flash("recovery", data, sz);
    533     }
    534 
    535     fname = find_item("system", product);
    536     data = load_file(fname, &sz);
    537     if (data == 0) die("could not load system.img");
    538     do_send_signature(fname);
    539     fb_queue_flash("system", data, sz);
    540 }
    541 
    542 #define skip(n) do { argc -= (n); argv += (n); } while (0)
    543 #define require(n) do { if (argc < (n)) {usage(); exit(1);}} while (0)
    544 
    545 int do_oem_command(int argc, char **argv)
    546 {
    547     int i;
    548     char command[256];
    549     if (argc <= 1) return 0;
    550 
    551     command[0] = 0;
    552     while(1) {
    553         strcat(command,*argv);
    554         skip(1);
    555         if(argc == 0) break;
    556         strcat(command," ");
    557     }
    558 
    559     fb_queue_command(command,"");
    560     return 0;
    561 }
    562 
    563 int main(int argc, char **argv)
    564 {
    565     int wants_wipe = 0;
    566     int wants_reboot = 0;
    567     int wants_reboot_bootloader = 0;
    568     void *data;
    569     unsigned sz;
    570     unsigned page_size = 2048;
    571     int status;
    572 
    573     skip(1);
    574     if (argc == 0) {
    575         usage();
    576         return 1;
    577     }
    578 
    579     if (!strcmp(*argv, "devices")) {
    580         list_devices();
    581         return 0;
    582     }
    583 
    584     if (!strcmp(*argv, "help")) {
    585         usage();
    586         return 0;
    587     }
    588 
    589 
    590     serial = getenv("ANDROID_SERIAL");
    591 
    592     while (argc > 0) {
    593         if(!strcmp(*argv, "-w")) {
    594             wants_wipe = 1;
    595             skip(1);
    596         } else if(!strcmp(*argv, "-b")) {
    597             require(2);
    598             base_addr = strtoul(argv[1], 0, 16);
    599             skip(2);
    600         } else if(!strcmp(*argv, "-n")) {
    601             require(2);
    602             page_size = (unsigned)strtoul(argv[1], NULL, 0);
    603             if (!page_size) die("invalid page size");
    604             skip(2);
    605         } else if(!strcmp(*argv, "-s")) {
    606             require(2);
    607             serial = argv[1];
    608             skip(2);
    609         } else if(!strcmp(*argv, "-p")) {
    610             require(2);
    611             product = argv[1];
    612             skip(2);
    613         } else if(!strcmp(*argv, "-c")) {
    614             require(2);
    615             cmdline = argv[1];
    616             skip(2);
    617         } else if(!strcmp(*argv, "-i")) {
    618             char *endptr = NULL;
    619             unsigned long val;
    620 
    621             require(2);
    622             val = strtoul(argv[1], &endptr, 0);
    623             if (!endptr || *endptr != '\0' || (val & ~0xffff))
    624                 die("invalid vendor id '%s'", argv[1]);
    625             vendor_id = (unsigned short)val;
    626             skip(2);
    627         } else if(!strcmp(*argv, "getvar")) {
    628             require(2);
    629             fb_queue_display(argv[1], argv[1]);
    630             skip(2);
    631         } else if(!strcmp(*argv, "erase")) {
    632             require(2);
    633             fb_queue_erase(argv[1]);
    634             skip(2);
    635         } else if(!strcmp(*argv, "signature")) {
    636             require(2);
    637             data = load_file(argv[1], &sz);
    638             if (data == 0) die("could not load '%s'", argv[1]);
    639             if (sz != 256) die("signature must be 256 bytes");
    640             fb_queue_download("signature", data, sz);
    641             fb_queue_command("signature", "installing signature");
    642             skip(2);
    643         } else if(!strcmp(*argv, "reboot")) {
    644             wants_reboot = 1;
    645             skip(1);
    646         } else if(!strcmp(*argv, "reboot-bootloader")) {
    647             wants_reboot_bootloader = 1;
    648             skip(1);
    649         } else if (!strcmp(*argv, "continue")) {
    650             fb_queue_command("continue", "resuming boot");
    651             skip(1);
    652         } else if(!strcmp(*argv, "boot")) {
    653             char *kname = 0;
    654             char *rname = 0;
    655             skip(1);
    656             if (argc > 0) {
    657                 kname = argv[0];
    658                 skip(1);
    659             }
    660             if (argc > 0) {
    661                 rname = argv[0];
    662                 skip(1);
    663             }
    664             data = load_bootable_image(page_size, kname, rname, &sz, cmdline);
    665             if (data == 0) return 1;
    666             fb_queue_download("boot.img", data, sz);
    667             fb_queue_command("boot", "booting");
    668         } else if(!strcmp(*argv, "flash")) {
    669             char *pname = argv[1];
    670             char *fname = 0;
    671             require(2);
    672             if (argc > 2) {
    673                 fname = argv[2];
    674                 skip(3);
    675             } else {
    676                 fname = find_item(pname, product);
    677                 skip(2);
    678             }
    679             if (fname == 0) die("cannot determine image filename for '%s'", pname);
    680             data = load_file(fname, &sz);
    681             if (data == 0) die("cannot load '%s'\n", fname);
    682             fb_queue_flash(pname, data, sz);
    683         } else if(!strcmp(*argv, "flash:raw")) {
    684             char *pname = argv[1];
    685             char *kname = argv[2];
    686             char *rname = 0;
    687             require(3);
    688             if(argc > 3) {
    689                 rname = argv[3];
    690                 skip(4);
    691             } else {
    692                 skip(3);
    693             }
    694             data = load_bootable_image(page_size, kname, rname, &sz, cmdline);
    695             if (data == 0) die("cannot load bootable image");
    696             fb_queue_flash(pname, data, sz);
    697         } else if(!strcmp(*argv, "flashall")) {
    698             skip(1);
    699             do_flashall();
    700             wants_reboot = 1;
    701         } else if(!strcmp(*argv, "update")) {
    702             if (argc > 1) {
    703                 do_update(argv[1]);
    704                 skip(2);
    705             } else {
    706                 do_update("update.zip");
    707                 skip(1);
    708             }
    709             wants_reboot = 1;
    710         } else if(!strcmp(*argv, "oem")) {
    711             argc = do_oem_command(argc, argv);
    712         } else {
    713             usage();
    714             return 1;
    715         }
    716     }
    717 
    718     if (wants_wipe) {
    719         fb_queue_erase("userdata");
    720         fb_queue_erase("cache");
    721     }
    722     if (wants_reboot) {
    723         fb_queue_reboot();
    724     } else if (wants_reboot_bootloader) {
    725         fb_queue_command("reboot-bootloader", "rebooting into bootloader");
    726     }
    727 
    728     usb = open_device();
    729 
    730     status = fb_execute_queue(usb);
    731     return (status) ? 1 : 0;
    732 }
    733