81a2f8d34b
The only difference between the three helpers is the filesystem type. Factor this out and call the filesystem functions directly, instead of through the command-line interpreter. This allows the file size to be obtained directly, instead of via an environment variable. We cannot do the same thing with PXE's tftpboot since there is no API at present to obtain information about the file that was read. So there is no point in changing pxe_getfile_func to use a ulong for the address, for example. This is as far as the refactoring can go for the present. Signed-off-by: Simon Glass <sjg@chromium.org> Reviewed-by: Artem Lapkin <email2tema@gmail.com> Tested-by: Artem Lapkin <email2tema@gmail.com> Reviewed-by: Ramon Fried <rfried.dev@gmail.com>
129 lines
2.9 KiB
C
129 lines
2.9 KiB
C
// SPDX-License-Identifier: GPL-2.0+
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#include <common.h>
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#include <command.h>
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#include <env.h>
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#include <fs.h>
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#include <pxe_utils.h>
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/**
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* struct sysboot_info - useful information for sysboot helpers
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*
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* @fstype: Filesystem type (FS_TYPE_...)
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* @ifname: Interface name (e.g. "ide", "scsi")
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* @dev_part_str is in the format:
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* <dev>.<hw_part>:<part> where <dev> is the device number,
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* <hw_part> is the optional hardware partition number and
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* <part> is the partition number
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*/
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struct sysboot_info {
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int fstype;
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const char *ifname;
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const char *dev_part_str;
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};
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static int sysboot_read_file(struct pxe_context *ctx, const char *file_path,
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char *file_addr, ulong *sizep)
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{
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struct sysboot_info *info = ctx->userdata;
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loff_t len_read;
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ulong addr;
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int ret;
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addr = simple_strtoul(file_addr, NULL, 16);
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ret = fs_set_blk_dev(info->ifname, info->dev_part_str, info->fstype);
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if (ret)
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return ret;
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ret = fs_read(file_path, addr, 0, 0, &len_read);
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if (ret)
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return ret;
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*sizep = len_read;
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return 0;
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}
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/*
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* Boots a system using a local disk syslinux/extlinux file
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*
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* Returns 0 on success, 1 on error.
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*/
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static int do_sysboot(struct cmd_tbl *cmdtp, int flag, int argc,
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char *const argv[])
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{
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unsigned long pxefile_addr_r;
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struct pxe_context ctx;
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char *pxefile_addr_str;
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struct sysboot_info info;
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char *filename;
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int prompt = 0;
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int ret;
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if (argc > 1 && strstr(argv[1], "-p")) {
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prompt = 1;
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argc--;
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argv++;
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}
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if (argc < 4)
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return cmd_usage(cmdtp);
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if (argc < 5) {
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pxefile_addr_str = from_env("pxefile_addr_r");
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if (!pxefile_addr_str)
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return 1;
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} else {
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pxefile_addr_str = argv[4];
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}
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if (argc < 6) {
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filename = env_get("bootfile");
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} else {
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filename = argv[5];
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env_set("bootfile", filename);
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}
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if (strstr(argv[3], "ext2")) {
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info.fstype = FS_TYPE_EXT;
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} else if (strstr(argv[3], "fat")) {
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info.fstype = FS_TYPE_FAT;
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} else if (strstr(argv[3], "any")) {
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info.fstype = FS_TYPE_ANY;
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} else {
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printf("Invalid filesystem: %s\n", argv[3]);
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return 1;
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}
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info.ifname = argv[1];
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info.dev_part_str = argv[2];
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if (strict_strtoul(pxefile_addr_str, 16, &pxefile_addr_r) < 0) {
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printf("Invalid pxefile address: %s\n", pxefile_addr_str);
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return 1;
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}
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if (pxe_setup_ctx(&ctx, cmdtp, sysboot_read_file, &info, true,
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filename)) {
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printf("Out of memory\n");
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return CMD_RET_FAILURE;
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}
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if (get_pxe_file(&ctx, filename, pxefile_addr_r) < 0) {
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printf("Error reading config file\n");
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pxe_destroy_ctx(&ctx);
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return 1;
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}
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ret = pxe_process(&ctx, pxefile_addr_r, prompt);
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pxe_destroy_ctx(&ctx);
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if (ret)
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return CMD_RET_FAILURE;
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return 0;
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}
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U_BOOT_CMD(sysboot, 7, 1, do_sysboot,
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"command to get and boot from syslinux files",
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"[-p] <interface> <dev[:part]> <ext2|fat|any> [addr] [filename]\n"
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" - load and parse syslinux menu file 'filename' from ext2, fat\n"
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" or any filesystem on 'dev' on 'interface' to address 'addr'"
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);
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