4d907025d6
Commit 95fac6ab45 "sandbox: Use os functions to read host device tree"
removed the ability for get_device_and_partition() to handle the "host"
device type, and redirect accesses to it to the host filesystem. This
broke some unit tests that use this feature. So, revert that change. The
code added back by this patch is slightly different to pacify checkpatch.
However, we're then left with "host" being both:
- A pseudo device that accesses the hosts real filesystem.
- An emulated block device, which accesses "sectors" inside a file stored
on the host.
In order to resolve this discrepancy, rename the pseudo device from host
to hostfs, and adjust the unit-tests for this change.
The "help sb" output is modified to reflect this rename, and state where
the host and hostfs devices should be used.
Signed-off-by: Stephen Warren <swarren@nvidia.com>
Tested-by: Josh Wu <josh.wu@atmel.com>
Acked-by: Simon Glass <sjg@chromium.org>
Tested-by: Simon Glass <sjg@chromium.org>
127 lines
3.2 KiB
C
127 lines
3.2 KiB
C
/*
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* Copyright (c) 2012, Google Inc.
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*
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* SPDX-License-Identifier: GPL-2.0+
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*/
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#include <common.h>
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#include <fs.h>
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#include <part.h>
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#include <sandboxblockdev.h>
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#include <asm/errno.h>
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static int do_sandbox_load(cmd_tbl_t *cmdtp, int flag, int argc,
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char * const argv[])
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{
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return do_load(cmdtp, flag, argc, argv, FS_TYPE_SANDBOX);
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}
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static int do_sandbox_ls(cmd_tbl_t *cmdtp, int flag, int argc,
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char * const argv[])
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{
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return do_ls(cmdtp, flag, argc, argv, FS_TYPE_SANDBOX);
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}
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static int do_sandbox_save(cmd_tbl_t *cmdtp, int flag, int argc,
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char * const argv[])
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{
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return do_save(cmdtp, flag, argc, argv, FS_TYPE_SANDBOX);
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}
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static int do_sandbox_bind(cmd_tbl_t *cmdtp, int flag, int argc,
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char * const argv[])
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{
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if (argc < 2 || argc > 3)
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return CMD_RET_USAGE;
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char *ep;
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char *dev_str = argv[1];
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char *file = argc >= 3 ? argv[2] : NULL;
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int dev = simple_strtoul(dev_str, &ep, 16);
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if (*ep) {
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printf("** Bad device specification %s **\n", dev_str);
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return CMD_RET_USAGE;
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}
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return host_dev_bind(dev, file);
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}
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static int do_sandbox_info(cmd_tbl_t *cmdtp, int flag, int argc,
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char * const argv[])
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{
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if (argc < 1 || argc > 2)
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return CMD_RET_USAGE;
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int min_dev = 0;
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int max_dev = CONFIG_HOST_MAX_DEVICES - 1;
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if (argc >= 2) {
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char *ep;
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char *dev_str = argv[1];
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int dev = simple_strtoul(dev_str, &ep, 16);
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if (*ep) {
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printf("** Bad device specification %s **\n", dev_str);
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return CMD_RET_USAGE;
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}
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min_dev = dev;
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max_dev = dev;
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}
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int dev;
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printf("%3s %12s %s\n", "dev", "blocks", "path");
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for (dev = min_dev; dev <= max_dev; dev++) {
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block_dev_desc_t *blk_dev;
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int ret;
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printf("%3d ", dev);
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ret = host_get_dev_err(dev, &blk_dev);
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if (ret) {
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if (ret == -ENOENT)
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puts("Not bound to a backing file\n");
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else if (ret == -ENODEV)
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puts("Invalid host device number\n");
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continue;
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}
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struct host_block_dev *host_dev = blk_dev->priv;
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printf("%12lu %s\n", (unsigned long)blk_dev->lba,
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host_dev->filename);
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}
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return 0;
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}
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static cmd_tbl_t cmd_sandbox_sub[] = {
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U_BOOT_CMD_MKENT(load, 7, 0, do_sandbox_load, "", ""),
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U_BOOT_CMD_MKENT(ls, 3, 0, do_sandbox_ls, "", ""),
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U_BOOT_CMD_MKENT(save, 6, 0, do_sandbox_save, "", ""),
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U_BOOT_CMD_MKENT(bind, 3, 0, do_sandbox_bind, "", ""),
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U_BOOT_CMD_MKENT(info, 3, 0, do_sandbox_info, "", ""),
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};
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static int do_sandbox(cmd_tbl_t *cmdtp, int flag, int argc,
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char * const argv[])
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{
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cmd_tbl_t *c;
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/* Skip past 'sandbox' */
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argc--;
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argv++;
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c = find_cmd_tbl(argv[0], cmd_sandbox_sub,
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ARRAY_SIZE(cmd_sandbox_sub));
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if (c)
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return c->cmd(cmdtp, flag, argc, argv);
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else
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return CMD_RET_USAGE;
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}
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U_BOOT_CMD(
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sb, 8, 1, do_sandbox,
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"Miscellaneous sandbox commands",
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"load hostfs - <addr> <filename> [<bytes> <offset>] - "
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"load a file from host\n"
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"sb ls hostfs - <filename> - list files on host\n"
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"sb save hostfs - <filename> <addr> <bytes> [<offset>] - "
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"save a file to host\n"
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"sb bind <dev> [<filename>] - bind \"host\" device to file\n"
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"sb info [<dev>] - show device binding & info\n"
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"sb commands use the \"hostfs\" device. The \"host\" device is used\n"
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"with standard IO commands such as fatls or ext2load"
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);
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