LXR uboot/cmd/sysboot.c

   1// SPDX-License-Identifier: GPL-2.0+
   2
   3#include <common.h>
   4#include <command.h>
   5#include <env.h>
   6#include <fs.h>
   7#include "pxe_utils.h"
   8
   9static char *fs_argv[5];
  10
  11static int do_get_ext2(struct cmd_tbl *cmdtp, const char *file_path,
  12                       char *file_addr)
  13{
  14#ifdef CONFIG_CMD_EXT2
  15        fs_argv[0] = "ext2load";
  16        fs_argv[3] = file_addr;
  17        fs_argv[4] = (void *)file_path;
  18
  19        if (!do_ext2load(cmdtp, 0, 5, fs_argv))
  20                return 1;
  21#endif
  22        return -ENOENT;
  23}
  24
  25static int do_get_fat(struct cmd_tbl *cmdtp, const char *file_path,
  26                      char *file_addr)
  27{
  28#ifdef CONFIG_CMD_FAT
  29        fs_argv[0] = "fatload";
  30        fs_argv[3] = file_addr;
  31        fs_argv[4] = (void *)file_path;
  32
  33        if (!do_fat_fsload(cmdtp, 0, 5, fs_argv))
  34                return 1;
  35#endif
  36        return -ENOENT;
  37}
  38
  39static int do_get_any(struct cmd_tbl *cmdtp, const char *file_path,
  40                      char *file_addr)
  41{
  42#ifdef CONFIG_CMD_FS_GENERIC
  43        fs_argv[0] = "load";
  44        fs_argv[3] = file_addr;
  45        fs_argv[4] = (void *)file_path;
  46
  47        if (!do_load(cmdtp, 0, 5, fs_argv, FS_TYPE_ANY))
  48                return 1;
  49#endif
  50        return -ENOENT;
  51}
  52
  53/*
  54 * Boots a system using a local disk syslinux/extlinux file
  55 *
  56 * Returns 0 on success, 1 on error.
  57 */
  58static int do_sysboot(struct cmd_tbl *cmdtp, int flag, int argc,
  59                      char *const argv[])
  60{
  61        unsigned long pxefile_addr_r;
  62        struct pxe_menu *cfg;
  63        char *pxefile_addr_str;
  64        char *filename;
  65        int prompt = 0;
  66
  67        is_pxe = false;
  68
  69        if (argc > 1 && strstr(argv[1], "-p")) {
  70                prompt = 1;
  71                argc--;
  72                argv++;
  73        }
  74
  75        if (argc < 4)
  76                return cmd_usage(cmdtp);
  77
  78        if (argc < 5) {
  79                pxefile_addr_str = from_env("pxefile_addr_r");
  80                if (!pxefile_addr_str)
  81                        return 1;
  82        } else {
  83                pxefile_addr_str = argv[4];
  84        }
  85
  86        if (argc < 6) {
  87                filename = env_get("bootfile");
  88        } else {
  89                filename = argv[5];
  90                env_set("bootfile", filename);
  91        }
  92
  93        if (strstr(argv[3], "ext2")) {
  94                do_getfile = do_get_ext2;
  95        } else if (strstr(argv[3], "fat")) {
  96                do_getfile = do_get_fat;
  97        } else if (strstr(argv[3], "any")) {
  98                do_getfile = do_get_any;
  99        } else {
 100                printf("Invalid filesystem: %s\n", argv[3]);
 101                return 1;
 102        }
 103        fs_argv[1] = argv[1];
 104        fs_argv[2] = argv[2];
 105
 106        if (strict_strtoul(pxefile_addr_str, 16, &pxefile_addr_r) < 0) {
 107                printf("Invalid pxefile address: %s\n", pxefile_addr_str);
 108                return 1;
 109        }
 110
 111        if (get_pxe_file(cmdtp, filename, pxefile_addr_r) < 0) {
 112                printf("Error reading config file\n");
 113                return 1;
 114        }
 115
 116        cfg = parse_pxefile(cmdtp, pxefile_addr_r);
 117
 118        if (!cfg) {
 119                printf("Error parsing config file\n");
 120                return 1;
 121        }
 122
 123        if (prompt)
 124                cfg->prompt = 1;
 125
 126        handle_pxe_menu(cmdtp, cfg);
 127
 128        destroy_pxe_menu(cfg);
 129
 130        return 0;
 131}
 132
 133U_BOOT_CMD(sysboot, 7, 1, do_sysboot,
 134           "command to get and boot from syslinux files",
 135           "[-p] <interface> <dev[:part]> <ext2|fat|any> [addr] [filename]\n"
 136           "    - load and parse syslinux menu file 'filename' from ext2, fat\n"
 137           "      or any filesystem on 'dev' on 'interface' to address 'addr'"
 138);
 139