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-rw-r--r--cmd/efidebug.c191
1 files changed, 155 insertions, 36 deletions
diff --git a/cmd/efidebug.c b/cmd/efidebug.c
index 55c7abe3d0..80ddd598e0 100644
--- a/cmd/efidebug.c
+++ b/cmd/efidebug.c
@@ -9,6 +9,7 @@
#include <common.h>
#include <command.h>
#include <efi_dt_fixup.h>
+#include <efi_load_initrd.h>
#include <efi_loader.h>
#include <efi_rng.h>
#include <exports.h>
@@ -19,6 +20,7 @@
#include <part.h>
#include <search.h>
#include <linux/ctype.h>
+#include <linux/err.h>
#define BS systab.boottime
#define RT systab.runtime
@@ -799,6 +801,54 @@ static int do_efi_show_tables(struct cmd_tbl *cmdtp, int flag,
}
/**
+ * create_initrd_dp() - Create a special device for our Boot### option
+ *
+ * @dev: Device
+ * @part: Disk partition
+ * @file: Filename
+ * Return: Pointer to the device path or ERR_PTR
+ *
+ */
+static
+struct efi_device_path *create_initrd_dp(const char *dev, const char *part,
+ const char *file)
+
+{
+ struct efi_device_path *tmp_dp = NULL, *tmp_fp = NULL;
+ struct efi_device_path *initrd_dp = NULL;
+ efi_status_t ret;
+ const struct efi_initrd_dp id_dp = {
+ .vendor = {
+ {
+ DEVICE_PATH_TYPE_MEDIA_DEVICE,
+ DEVICE_PATH_SUB_TYPE_VENDOR_PATH,
+ sizeof(id_dp.vendor),
+ },
+ EFI_INITRD_MEDIA_GUID,
+ },
+ .end = {
+ DEVICE_PATH_TYPE_END,
+ DEVICE_PATH_SUB_TYPE_END,
+ sizeof(id_dp.end),
+ }
+ };
+
+ ret = efi_dp_from_name(dev, part, file, &tmp_dp, &tmp_fp);
+ if (ret != EFI_SUCCESS) {
+ printf("Cannot create device path for \"%s %s\"\n", part, file);
+ goto out;
+ }
+
+ initrd_dp = efi_dp_append((const struct efi_device_path *)&id_dp,
+ tmp_fp);
+
+out:
+ efi_free_pool(tmp_dp);
+ efi_free_pool(tmp_fp);
+ return initrd_dp;
+}
+
+/**
* do_efi_boot_add() - set UEFI load option
*
* @cmdtp: Command table
@@ -810,7 +860,9 @@ static int do_efi_show_tables(struct cmd_tbl *cmdtp, int flag,
*
* Implement efidebug "boot add" sub-command. Create or change UEFI load option.
*
- * efidebug boot add <id> <label> <interface> <devnum>[:<part>] <file> <options>
+ * efidebug boot add -b <id> <label> <interface> <devnum>[:<part>] <file>
+ * -i <file> <interface2> <devnum2>[:<part>] <initrd>
+ * -s '<options>'
*/
static int do_efi_boot_add(struct cmd_tbl *cmdtp, int flag,
int argc, char *const argv[])
@@ -823,55 +875,105 @@ static int do_efi_boot_add(struct cmd_tbl *cmdtp, int flag,
size_t label_len, label_len16;
u16 *label;
struct efi_device_path *device_path = NULL, *file_path = NULL;
+ struct efi_device_path *final_fp = NULL;
+ struct efi_device_path *initrd_dp = NULL;
struct efi_load_option lo;
void *data = NULL;
efi_uintn_t size;
+ efi_uintn_t fp_size = 0;
efi_status_t ret;
int r = CMD_RET_SUCCESS;
- if (argc < 6 || argc > 7)
- return CMD_RET_USAGE;
-
- id = (int)simple_strtoul(argv[1], &endp, 16);
- if (*endp != '\0' || id > 0xffff)
- return CMD_RET_USAGE;
-
- sprintf(var_name, "Boot%04X", id);
- p = var_name16;
- utf8_utf16_strncpy(&p, var_name, 9);
-
guid = efi_global_variable_guid;
/* attributes */
lo.attributes = LOAD_OPTION_ACTIVE; /* always ACTIVE */
+ lo.optional_data = NULL;
+ lo.label = NULL;
- /* label */
- label_len = strlen(argv[2]);
- label_len16 = utf8_utf16_strnlen(argv[2], label_len);
- label = malloc((label_len16 + 1) * sizeof(u16));
- if (!label)
- return CMD_RET_FAILURE;
- lo.label = label; /* label will be changed below */
- utf8_utf16_strncpy(&label, argv[2], label_len);
+ argc--;
+ argv++; /* 'add' */
+ for (; argc > 0; argc--, argv++) {
+ if (!strcmp(argv[0], "-b")) {
+ if (argc < 5 || lo.label) {
+ r = CMD_RET_USAGE;
+ goto out;
+ }
+ id = (int)simple_strtoul(argv[1], &endp, 16);
+ if (*endp != '\0' || id > 0xffff)
+ return CMD_RET_USAGE;
+
+ sprintf(var_name, "Boot%04X", id);
+ p = var_name16;
+ utf8_utf16_strncpy(&p, var_name, 9);
+
+ /* label */
+ label_len = strlen(argv[2]);
+ label_len16 = utf8_utf16_strnlen(argv[2], label_len);
+ label = malloc((label_len16 + 1) * sizeof(u16));
+ if (!label)
+ return CMD_RET_FAILURE;
+ lo.label = label; /* label will be changed below */
+ utf8_utf16_strncpy(&label, argv[2], label_len);
+
+ /* file path */
+ ret = efi_dp_from_name(argv[3], argv[4], argv[5],
+ &device_path, &file_path);
+ if (ret != EFI_SUCCESS) {
+ printf("Cannot create device path for \"%s %s\"\n",
+ argv[3], argv[4]);
+ r = CMD_RET_FAILURE;
+ goto out;
+ }
+ fp_size += efi_dp_size(file_path) +
+ sizeof(struct efi_device_path);
+ argc -= 5;
+ argv += 5;
+ } else if (!strcmp(argv[0], "-i")) {
+ if (argc < 3 || initrd_dp) {
+ r = CMD_RET_USAGE;
+ goto out;
+ }
- /* file path */
- ret = efi_dp_from_name(argv[3], argv[4], argv[5], &device_path,
- &file_path);
- if (ret != EFI_SUCCESS) {
- printf("Cannot create device path for \"%s %s\"\n",
- argv[3], argv[4]);
+ initrd_dp = create_initrd_dp(argv[1], argv[2], argv[3]);
+ if (!initrd_dp) {
+ printf("Cannot add an initrd\n");
+ r = CMD_RET_FAILURE;
+ goto out;
+ }
+ argc -= 3;
+ argv += 3;
+ fp_size += efi_dp_size(initrd_dp) +
+ sizeof(struct efi_device_path);
+ } else if (!strcmp(argv[0], "-s")) {
+ if (argc < 1 || lo.optional_data) {
+ r = CMD_RET_USAGE;
+ goto out;
+ }
+ lo.optional_data = (const u8 *)argv[1];
+ argc -= 1;
+ argv += 1;
+ } else {
+ r = CMD_RET_USAGE;
+ goto out;
+ }
+ }
+
+ if (!file_path) {
+ printf("Missing binary\n");
+ r = CMD_RET_USAGE;
+ goto out;
+ }
+
+ final_fp = efi_dp_concat(file_path, initrd_dp);
+ if (!final_fp) {
+ printf("Cannot create final device path\n");
r = CMD_RET_FAILURE;
goto out;
}
- lo.file_path = file_path;
- lo.file_path_length = efi_dp_size(file_path)
- + sizeof(struct efi_device_path); /* for END */
- /* optional data */
- if (argc == 6)
- lo.optional_data = NULL;
- else
- lo.optional_data = (const u8 *)argv[6];
+ lo.file_path = final_fp;
+ lo.file_path_length = fp_size;
size = efi_serialize_load_option(&lo, (u8 **)&data);
if (!size) {
@@ -888,8 +990,11 @@ static int do_efi_boot_add(struct cmd_tbl *cmdtp, int flag,
printf("Cannot set %ls\n", var_name16);
r = CMD_RET_FAILURE;
}
+
out:
free(data);
+ efi_free_pool(final_fp);
+ efi_free_pool(initrd_dp);
efi_free_pool(device_path);
efi_free_pool(file_path);
free(lo.label);
@@ -955,11 +1060,14 @@ static int do_efi_boot_rm(struct cmd_tbl *cmdtp, int flag,
*/
static void show_efi_boot_opt_data(u16 *varname16, void *data, size_t *size)
{
+ struct efi_device_path *initrd_path = NULL;
struct efi_load_option lo;
char *label, *p;
size_t label_len16, label_len;
u16 *dp_str;
efi_status_t ret;
+ efi_uintn_t initrd_dp_size;
+ const efi_guid_t lf2_initrd_guid = EFI_INITRD_MEDIA_GUID;
ret = efi_deserialize_load_option(&lo, data, size);
if (ret != EFI_SUCCESS) {
@@ -990,6 +1098,14 @@ static void show_efi_boot_opt_data(u16 *varname16, void *data, size_t *size)
printf(" file_path: %ls\n", dp_str);
efi_free_pool(dp_str);
+ initrd_path = efi_dp_from_lo(&lo, &initrd_dp_size, lf2_initrd_guid);
+ if (initrd_path) {
+ dp_str = efi_dp_str(initrd_path);
+ printf(" initrd_path: %ls\n", dp_str);
+ efi_free_pool(dp_str);
+ efi_free_pool(initrd_path);
+ }
+
printf(" data:\n");
print_hex_dump(" ", DUMP_PREFIX_OFFSET, 16, 1,
lo.optional_data, *size, true);
@@ -1559,7 +1675,10 @@ static int do_efidebug(struct cmd_tbl *cmdtp, int flag,
static char efidebug_help_text[] =
" - UEFI Shell-like interface to configure UEFI environment\n"
"\n"
- "efidebug boot add <bootid> <label> <interface> <devnum>[:<part>] <file path> [<load options>]\n"
+ "efidebug boot add "
+ "-b <bootid> <label> <interface> <devnum>[:<part>] <file path> "
+ "-i <interface> <devnum>[:<part>] <initrd file path> "
+ "-s '<optional data>'\n"
" - set UEFI BootXXXX variable\n"
" <load options> will be passed to UEFI application\n"
"efidebug boot rm <bootid#1> [<bootid#2> [<bootid#3> [...]]]\n"
@@ -1603,7 +1722,7 @@ static char efidebug_help_text[] =
#endif
U_BOOT_CMD(
- efidebug, 10, 0, do_efidebug,
+ efidebug, CONFIG_SYS_MAXARGS, 0, do_efidebug,
"Configure UEFI environment",
efidebug_help_text
);
generated by cgit v1.2.3 (git 2.39.0) at 2024-07-26 11:49:58 +0300