The UEFI spec allow a packed array of UEFI device paths in the FilePathList[] of an EFI_LOAD_OPTION. The first file path must describe the loaded image but the rest are OS specific.
Previous patches parse the device path and try to use the second member of the array as an initrd. So let's modify efidebug slightly and install the second file described in the command line as the initrd device path.
Signed-off-by: Ilias Apalodimas ilias.apalodimas@linaro.org --- cmd/efidebug.c | 193 ++++++++++++++---- doc/board/emulation/qemu_capsule_update.rst | 4 +- doc/uefi/uefi.rst | 2 +- .../test_efi_capsule/test_capsule_firmware.py | 6 +- test/py/tests/test_efi_secboot/test_signed.py | 16 +- .../test_efi_secboot/test_signed_intca.py | 8 +- .../tests/test_efi_secboot/test_unsigned.py | 8 +- 7 files changed, 179 insertions(+), 58 deletions(-)
diff --git a/cmd/efidebug.c b/cmd/efidebug.c index bbbcb0a54643..9a1c471a3eaa 100644 --- a/cmd/efidebug.c +++ b/cmd/efidebug.c @@ -9,6 +9,8 @@ #include <common.h> #include <command.h> #include <efi_dt_fixup.h> +#include <efi_helper.h> +#include <efi_load_initrd.h> #include <efi_loader.h> #include <efi_rng.h> #include <exports.h> @@ -19,6 +21,7 @@ #include <part.h> #include <search.h> #include <linux/ctype.h> +#include <linux/err.h>
#define BS systab.boottime #define RT systab.runtime @@ -794,6 +797,65 @@ static int do_efi_show_tables(struct cmd_tbl *cmdtp, int flag, return CMD_RET_SUCCESS; }
+/** + * add_initrd_instance() - Append a device path to load_options pointing to an + * inirtd + * + * @argc: Number of arguments + * @argv: Argument array + * @file_path Existing device path, the new instance will be appended + * Return: Pointer to the device path or ERR_PTR + * + */ +static +struct efi_device_path *add_initrd_instance(const char *dev, const char *part, + const char *file, + const struct efi_device_path *fp, + efi_uintn_t *fp_size) +{ + struct efi_device_path *tmp_dp = NULL, *tmp_fp = NULL; + struct efi_device_path *final_fp = NULL, *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_instance((const struct efi_device_path *)&id_dp, + tmp_fp); + if (!initrd_dp) { + printf("Cannot append media vendor device path path\n"); + goto out; + } + final_fp = efi_dp_concat(fp, initrd_dp); + *fp_size = efi_dp_size(fp) + efi_dp_size(initrd_dp) + + (2 * sizeof(struct efi_device_path)); + +out: + efi_free_pool(initrd_dp); + efi_free_pool(tmp_dp); + efi_free_pool(tmp_fp); + return final_fp ? final_fp : ERR_PTR(-EINVAL); +} + /** * do_efi_boot_add() - set UEFI load option * @@ -806,7 +868,9 @@ 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[]) @@ -819,55 +883,98 @@ 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_load_option lo; void *data = NULL; efi_uintn_t size; + efi_uintn_t fp_size; 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); + int i;
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); + /* search for -b first since the rest of the arguments depends on that */ + for (i = 0; i < argc; i++) { + if (!strcmp(argv[i], "-b")) { + if (argc < i + 5 || lo.label) { + r = CMD_RET_USAGE; + goto out; + } + id = (int)simple_strtoul(argv[i + 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[i + 2]); + label_len16 = utf8_utf16_strnlen(argv[i + 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[i + 2], label_len); + + /* file path */ + ret = efi_dp_from_name(argv[i + 3], argv[i + 4], + argv[i + 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; + break; + } + fp_size = efi_dp_size(file_path) + + sizeof(struct efi_device_path); + } + }
- /* 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]); + if (!file_path) { + printf("You need to specify an image before an initrd.\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]; + /* add now add initrd and extra data */ + for (i = 0; i < argc; i++) { + if (!strcmp(argv[i], "-i")) { + if (argc < i + 3 || final_fp) { + r = CMD_RET_USAGE; + goto out; + } + + final_fp = add_initrd_instance(argv[i + 1], argv[i + 2], + argv[i + 3], file_path, + &fp_size); + if (IS_ERR(final_fp)) { + r = CMD_RET_FAILURE; + goto out; + } + + /* add_initrd_instance allocates a new device path */ + efi_free_pool(file_path); + file_path = final_fp; + } else if (!strcmp(argv[i], "-s")) { + if (argc < i + 1 || lo.optional_data) { + r = CMD_RET_USAGE; + goto out; + } + lo.optional_data = (const u8 *)argv[i + 1]; + } + } + + lo.file_path = file_path; + lo.file_path_length = fp_size;
size = efi_serialize_load_option(&lo, (u8 **)&data); if (!size) { @@ -951,11 +1058,14 @@ 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) { @@ -986,6 +1096,14 @@ 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); @@ -1555,7 +1673,10 @@ 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" @@ -1599,7 +1720,7 @@ 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 ); diff --git a/doc/board/emulation/qemu_capsule_update.rst b/doc/board/emulation/qemu_capsule_update.rst index 9fec75f8f1c9..33ce4bcd32ea 100644 --- a/doc/board/emulation/qemu_capsule_update.rst +++ b/doc/board/emulation/qemu_capsule_update.rst @@ -60,7 +60,7 @@ to be pointing to the EFI System Partition which contains the capsule file. The BootNext, BootXXXX and OsIndications variables can be set using the following commands::
- => efidebug boot add 0 Boot0000 virtio 0:1 <capsule_file_name> + => efidebug boot add -b 0 Boot0000 virtio 0:1 <capsule_file_name> => efidebug boot next 0 => setenv -e -nv -bs -rt -v OsIndications =0x04 => saveenv @@ -198,7 +198,7 @@ command line:: 3. Set the following environment and UEFI boot variables
=> setenv -e -nv -bs -rt -v OsIndications =0x04 - => efidebug boot add 0 Boot0000 virtio 0:1 <capsule_file_name> + => efidebug boot add -b 0 Boot0000 virtio 0:1 <capsule_file_name> => efidebug boot next 0 => saveenv
diff --git a/doc/uefi/uefi.rst b/doc/uefi/uefi.rst index 5a67737c1579..b3494c22e073 100644 --- a/doc/uefi/uefi.rst +++ b/doc/uefi/uefi.rst @@ -178,7 +178,7 @@ Now in U-Boot install the keys on your board::
Set up boot parameters on your board::
- efidebug boot add 1 HELLO mmc 0:1 /helloworld.efi.signed "" + efidebug boot add -b 1 HELLO mmc 0:1 /helloworld.efi.signed ""
Now your board can run the signed image via the boot manager (see below). You can also try this sequence by running Pytest, test_efi_secboot, diff --git a/test/py/tests/test_efi_capsule/test_capsule_firmware.py b/test/py/tests/test_efi_capsule/test_capsule_firmware.py index f006fa95d650..e8b0a1575453 100644 --- a/test/py/tests/test_efi_capsule/test_capsule_firmware.py +++ b/test/py/tests/test_efi_capsule/test_capsule_firmware.py @@ -39,7 +39,7 @@ class TestEfiCapsuleFirmwareFit(object): with u_boot_console.log.section('Test Case 1-a, before reboot'): output = u_boot_console.run_command_list([ 'host bind 0 %s' % disk_img, - 'efidebug boot add 1 TEST host 0:1 /helloworld.efi ""', + 'efidebug boot add -b 1 TEST host 0:1 /helloworld.efi ""', 'efidebug boot order 1', 'env set -e OsIndications', 'env set dfu_alt_info "sf 0:0=u-boot-bin raw 0x100000 0x50000;u-boot-env raw 0x150000 0x200000"', @@ -114,7 +114,7 @@ class TestEfiCapsuleFirmwareFit(object): with u_boot_console.log.section('Test Case 2-a, before reboot'): output = u_boot_console.run_command_list([ 'host bind 0 %s' % disk_img, - 'efidebug boot add 1 TEST host 0:1 /helloworld.efi ""', + 'efidebug boot add -b 1 TEST host 0:1 /helloworld.efi ""', 'efidebug boot order 1', 'env set -e -nv -bs -rt OsIndications =0x0000000000000004', 'env set dfu_alt_info "sf 0:0=u-boot-bin raw 0x100000 0x50000;u-boot-env raw 0x150000 0x200000"', @@ -188,7 +188,7 @@ class TestEfiCapsuleFirmwareFit(object): with u_boot_console.log.section('Test Case 3-a, before reboot'): output = u_boot_console.run_command_list([ 'host bind 0 %s' % disk_img, - 'efidebug boot add 1 TEST host 0:1 /helloworld.efi ""', + 'efidebug boot add -b 1 TEST host 0:1 /helloworld.efi ""', 'efidebug boot order 1', 'env set -e -nv -bs -rt OsIndications =0x0000000000000004', 'env set dfu_alt_info "sf 0:0=u-boot-bin raw 0x100000 0x50000;u-boot-env raw 0x150000 0x200000"', diff --git a/test/py/tests/test_efi_secboot/test_signed.py b/test/py/tests/test_efi_secboot/test_signed.py index 863685e215b7..75f5ea772300 100644 --- a/test/py/tests/test_efi_secboot/test_signed.py +++ b/test/py/tests/test_efi_secboot/test_signed.py @@ -28,7 +28,7 @@ class TestEfiSignedImage(object): # Test Case 1a, run signed image if no PK output = u_boot_console.run_command_list([ 'host bind 0 %s' % disk_img, - 'efidebug boot add 1 HELLO1 host 0:1 /helloworld.efi.signed ""', + 'efidebug boot add -b 1 HELLO1 host 0:1 /helloworld.efi.signed ""', 'efidebug boot next 1', 'bootefi bootmgr']) assert 'Hello, world!' in ''.join(output) @@ -36,7 +36,7 @@ class TestEfiSignedImage(object): with u_boot_console.log.section('Test Case 1b'): # Test Case 1b, run unsigned image if no PK output = u_boot_console.run_command_list([ - 'efidebug boot add 2 HELLO2 host 0:1 /helloworld.efi ""', + 'efidebug boot add -b 2 HELLO2 host 0:1 /helloworld.efi ""', 'efidebug boot next 2', 'bootefi bootmgr']) assert 'Hello, world!' in ''.join(output) @@ -58,13 +58,13 @@ class TestEfiSignedImage(object): 'setenv -e -nv -bs -rt -at -i 4000000:$filesize PK']) assert 'Failed to set EFI variable' not in ''.join(output) output = u_boot_console.run_command_list([ - 'efidebug boot add 1 HELLO1 host 0:1 /helloworld.efi.signed ""', + 'efidebug boot add -b 1 HELLO1 host 0:1 /helloworld.efi.signed ""', 'efidebug boot next 1', 'efidebug test bootmgr']) assert(''HELLO1' failed' in ''.join(output)) assert('efi_start_image() returned: 26' in ''.join(output)) output = u_boot_console.run_command_list([ - 'efidebug boot add 2 HELLO2 host 0:1 /helloworld.efi ""', + 'efidebug boot add -b 2 HELLO2 host 0:1 /helloworld.efi ""', 'efidebug boot next 2', 'efidebug test bootmgr']) assert ''HELLO2' failed' in ''.join(output) @@ -104,7 +104,7 @@ class TestEfiSignedImage(object): 'setenv -e -nv -bs -rt -at -i 4000000:$filesize PK']) assert 'Failed to set EFI variable' not in ''.join(output) output = u_boot_console.run_command_list([ - 'efidebug boot add 1 HELLO host 0:1 /helloworld.efi.signed ""', + 'efidebug boot add -b 1 HELLO host 0:1 /helloworld.efi.signed ""', 'efidebug boot next 1', 'efidebug test bootmgr']) assert ''HELLO' failed' in ''.join(output) @@ -142,7 +142,7 @@ class TestEfiSignedImage(object): 'setenv -e -nv -bs -rt -at -i 4000000:$filesize PK']) assert 'Failed to set EFI variable' not in ''.join(output) output = u_boot_console.run_command_list([ - 'efidebug boot add 1 HELLO host 0:1 /helloworld.efi.signed ""', + 'efidebug boot add -b 1 HELLO host 0:1 /helloworld.efi.signed ""', 'efidebug boot next 1', 'efidebug test bootmgr']) assert ''HELLO' failed' in ''.join(output) @@ -169,7 +169,7 @@ class TestEfiSignedImage(object): 'setenv -e -nv -bs -rt -at -i 4000000:$filesize PK']) assert 'Failed to set EFI variable' not in ''.join(output) output = u_boot_console.run_command_list([ - 'efidebug boot add 1 HELLO host 0:1 /helloworld.efi.signed_2sigs ""', + 'efidebug boot add -b 1 HELLO host 0:1 /helloworld.efi.signed_2sigs ""', 'efidebug boot next 1', 'efidebug test bootmgr']) assert 'Hello, world!' in ''.join(output) @@ -227,7 +227,7 @@ class TestEfiSignedImage(object): 'setenv -e -nv -bs -rt -at -i 4000000:$filesize PK']) assert 'Failed to set EFI variable' not in ''.join(output) output = u_boot_console.run_command_list([ - 'efidebug boot add 1 HELLO host 0:1 /helloworld.efi.signed ""', + 'efidebug boot add -b 1 HELLO host 0:1 /helloworld.efi.signed ""', 'efidebug boot next 1', 'bootefi bootmgr']) assert 'Hello, world!' in ''.join(output) diff --git a/test/py/tests/test_efi_secboot/test_signed_intca.py b/test/py/tests/test_efi_secboot/test_signed_intca.py index 70d6be00e8a8..0849572a5143 100644 --- a/test/py/tests/test_efi_secboot/test_signed_intca.py +++ b/test/py/tests/test_efi_secboot/test_signed_intca.py @@ -39,7 +39,7 @@ class TestEfiSignedImageIntca(object): assert 'Failed to set EFI variable' not in ''.join(output)
output = u_boot_console.run_command_list([ - 'efidebug boot add 1 HELLO_a host 0:1 /helloworld.efi.signed_a ""', + 'efidebug boot add -b 1 HELLO_a host 0:1 /helloworld.efi.signed_a ""', 'efidebug boot next 1', 'efidebug test bootmgr']) assert ''HELLO_a' failed' in ''.join(output) @@ -48,7 +48,7 @@ class TestEfiSignedImageIntca(object): with u_boot_console.log.section('Test Case 1b'): # Test Case 1b, signed and authenticated by root CA output = u_boot_console.run_command_list([ - 'efidebug boot add 2 HELLO_ab host 0:1 /helloworld.efi.signed_ab ""', + 'efidebug boot add -b 2 HELLO_ab host 0:1 /helloworld.efi.signed_ab ""', 'efidebug boot next 2', 'bootefi bootmgr']) assert 'Hello, world!' in ''.join(output) @@ -70,7 +70,7 @@ class TestEfiSignedImageIntca(object): assert 'Failed to set EFI variable' not in ''.join(output)
output = u_boot_console.run_command_list([ - 'efidebug boot add 1 HELLO_abc host 0:1 /helloworld.efi.signed_abc ""', + 'efidebug boot add -b 1 HELLO_abc host 0:1 /helloworld.efi.signed_abc ""', 'efidebug boot next 1', 'efidebug test bootmgr']) assert ''HELLO_abc' failed' in ''.join(output) @@ -116,7 +116,7 @@ class TestEfiSignedImageIntca(object): assert 'Failed to set EFI variable' not in ''.join(output)
output = u_boot_console.run_command_list([ - 'efidebug boot add 1 HELLO_abc host 0:1 /helloworld.efi.signed_abc ""', + 'efidebug boot add -b 1 HELLO_abc host 0:1 /helloworld.efi.signed_abc ""', 'efidebug boot next 1', 'efidebug test bootmgr']) assert 'Hello, world!' in ''.join(output) diff --git a/test/py/tests/test_efi_secboot/test_unsigned.py b/test/py/tests/test_efi_secboot/test_unsigned.py index 56f56e19eb84..8e026f7566ad 100644 --- a/test/py/tests/test_efi_secboot/test_unsigned.py +++ b/test/py/tests/test_efi_secboot/test_unsigned.py @@ -35,7 +35,7 @@ class TestEfiUnsignedImage(object): assert 'Failed to set EFI variable' not in ''.join(output)
output = u_boot_console.run_command_list([ - 'efidebug boot add 1 HELLO host 0:1 /helloworld.efi ""', + 'efidebug boot add -b 1 HELLO host 0:1 /helloworld.efi ""', 'efidebug boot next 1', 'bootefi bootmgr']) assert ''HELLO' failed' in ''.join(output) @@ -64,7 +64,7 @@ class TestEfiUnsignedImage(object): assert 'Failed to set EFI variable' not in ''.join(output)
output = u_boot_console.run_command_list([ - 'efidebug boot add 1 HELLO host 0:1 /helloworld.efi ""', + 'efidebug boot add -b 1 HELLO host 0:1 /helloworld.efi ""', 'efidebug boot next 1', 'bootefi bootmgr']) assert 'Hello, world!' in ''.join(output) @@ -88,7 +88,7 @@ class TestEfiUnsignedImage(object): assert 'Failed to set EFI variable' not in ''.join(output)
output = u_boot_console.run_command_list([ - 'efidebug boot add 1 HELLO host 0:1 /helloworld.efi ""', + 'efidebug boot add -b 1 HELLO host 0:1 /helloworld.efi ""', 'efidebug boot next 1', 'bootefi bootmgr']) assert ''HELLO' failed' in ''.join(output) @@ -106,7 +106,7 @@ class TestEfiUnsignedImage(object): assert 'Failed to set EFI variable' not in ''.join(output)
output = u_boot_console.run_command_list([ - 'efidebug boot add 1 HELLO host 0:1 /helloworld.efi ""', + 'efidebug boot add -b 1 HELLO host 0:1 /helloworld.efi ""', 'efidebug boot next 1', 'bootefi bootmgr']) assert ''HELLO' failed' in ''.join(output)