common/cmd_sandbox.c

   1 /*
   2  * Copyright (c) 2012, Google Inc.
   3  *
   4  * SPDX-License-Identifier:     GPL-2.0+
   5  */
   6
   7 #include <common.h>
   8 #include <fs.h>
   9 #include <part.h>
  10 #include <sandboxblockdev.h>
  11 #include <asm/errno.h>
  12
  13 static int do_sandbox_load(cmd_tbl_t *cmdtp, int flag, int argc,
  14                            char * const argv[])
  15 {
  16         return do_load(cmdtp, flag, argc, argv, FS_TYPE_SANDBOX);
  17 }
  18
  19 static int do_sandbox_ls(cmd_tbl_t *cmdtp, int flag, int argc,
  20                            char * const argv[])
  21 {
  22         return do_ls(cmdtp, flag, argc, argv, FS_TYPE_SANDBOX);
  23 }
  24
  25 static int do_sandbox_save(cmd_tbl_t *cmdtp, int flag, int argc,
  26                            char * const argv[])
  27 {
  28         return do_save(cmdtp, flag, argc, argv, FS_TYPE_SANDBOX);
  29 }
  30
  31 static int do_sandbox_bind(cmd_tbl_t *cmdtp, int flag, int argc,
  32                            char * const argv[])
  33 {
  34         if (argc < 2 || argc > 3)
  35                 return CMD_RET_USAGE;
  36         char *ep;
  37         char *dev_str = argv[1];
  38         char *file = argc >= 3 ? argv[2] : NULL;
  39         int dev = simple_strtoul(dev_str, &ep, 16);
  40         if (*ep) {
  41                 printf("** Bad device specification %s **\n", dev_str);
  42                 return CMD_RET_USAGE;
  43         }
  44         return host_dev_bind(dev, file);
  45 }
  46
  47 static int do_sandbox_info(cmd_tbl_t *cmdtp, int flag, int argc,
  48                            char * const argv[])
  49 {
  50         if (argc < 1 || argc > 2)
  51                 return CMD_RET_USAGE;
  52         int min_dev = 0;
  53         int max_dev = CONFIG_HOST_MAX_DEVICES - 1;
  54         if (argc >= 2) {
  55                 char *ep;
  56                 char *dev_str = argv[1];
  57                 int dev = simple_strtoul(dev_str, &ep, 16);
  58                 if (*ep) {
  59                         printf("** Bad device specification %s **\n", dev_str);
  60                         return CMD_RET_USAGE;
  61                 }
  62                 min_dev = dev;
  63                 max_dev = dev;
  64         }
  65         int dev;
  66         printf("%3s %12s %s\n", "dev", "blocks", "path");
  67         for (dev = min_dev; dev <= max_dev; dev++) {
  68                 block_dev_desc_t *blk_dev;
  69                 int ret;
  70
  71                 printf("%3d ", dev);
  72                 ret = host_get_dev_err(dev, &blk_dev);
  73                 if (ret) {
  74                         if (ret == -ENOENT)
  75                                 puts("Not bound to a backing file\n");
  76                         else if (ret == -ENODEV)
  77                                 puts("Invalid host device number\n");
  78
  79                         continue;
  80                 }
  81                 struct host_block_dev *host_dev = blk_dev->priv;
  82                 printf("%12lu %s\n", (unsigned long)blk_dev->lba,
  83                        host_dev->filename);
  84         }
  85         return 0;
  86 }
  87
  88 static cmd_tbl_t cmd_sandbox_sub[] = {
  89         U_BOOT_CMD_MKENT(load, 7, 0, do_sandbox_load, "", ""),
  90         U_BOOT_CMD_MKENT(ls, 3, 0, do_sandbox_ls, "", ""),
  91         U_BOOT_CMD_MKENT(save, 6, 0, do_sandbox_save, "", ""),
  92         U_BOOT_CMD_MKENT(bind, 3, 0, do_sandbox_bind, "", ""),
  93         U_BOOT_CMD_MKENT(info, 3, 0, do_sandbox_info, "", ""),
  94 };
  95
  96 static int do_sandbox(cmd_tbl_t *cmdtp, int flag, int argc,
  97                       char * const argv[])
  98 {
  99         cmd_tbl_t *c;
 100
 101         /* Skip past 'sandbox' */
 102         argc--;
 103         argv++;
 104
 105         c = find_cmd_tbl(argv[0], cmd_sandbox_sub,
 106                          ARRAY_SIZE(cmd_sandbox_sub));
 107
 108         if (c)
 109                 return c->cmd(cmdtp, flag, argc, argv);
 110         else
 111                 return CMD_RET_USAGE;
 112 }
 113
 114 U_BOOT_CMD(
 115         sb,     8,      1,      do_sandbox,
 116         "Miscellaneous sandbox commands",
 117         "load hostfs - <addr> <filename> [<bytes> <offset>]  - "
 118                 "load a file from host\n"
 119         "sb ls hostfs - <filename>                    - list files on host\n"
 120         "sb save hostfs - <addr> <filename> <bytes> [<offset>] - "
 121                 "save a file to host\n"
 122         "sb bind <dev> [<filename>] - bind \"host\" device to file\n"
 123         "sb info [<dev>]            - show device binding & info\n"
 124         "sb commands use the \"hostfs\" device. The \"host\" device is used\n"
 125         "with standard IO commands such as fatls or ext2load"
 126 );