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cmd: env: add "-at" option to "env set -e" command

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With "-at" option, EFI_VARIABLE_TIME_BASED_AUTHENTICATED_WRITE_ACCESS
will be passed to SetVariable() to authenticate the variable.

Signed-off-by: AKASHI Takahiro <takahiro.akashi@linaro.org>
This commit is contained in:
AKASHI Takahiro 2020-04-14 11:51:47 +09:00 committed by Heinrich Schuchardt
parent f757d04598
commit e50e2878b2
2 changed files with 7 additions and 3 deletions
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5
cmd/nvedit.c
View file

@ -1417,7 +1417,7 @@ static char env_help_text[] =
#endif
#endif
#if defined(CONFIG_CMD_NVEDIT_EFI)
"env set -e [-nv][-bs][-rt][-a][-i addr,size][-v] name [arg ...]\n"
"env set -e [-nv][-bs][-rt][-at][-a][-i addr,size][-v] name [arg ...]\n"
" - set UEFI variable; unset if '-i' or 'arg' not specified\n"
#endif
"env set [-f] name [arg ...]\n";
@ -1479,13 +1479,14 @@ U_BOOT_CMD_COMPLETE(
setenv, CONFIG_SYS_MAXARGS, 0, do_env_set,
"set environment variables",
#if defined(CONFIG_CMD_NVEDIT_EFI)
"-e [-guid guid][-nv][-bs][-rt][-a][-v]\n"
"-e [-guid guid][-nv][-bs][-rt][-at][-a][-v]\n"
" [-i addr,size name], or [name [value ...]]\n"
" - set UEFI variable 'name' to 'value' ...'\n"
" \"-guid\": set vendor guid\n"
" \"-nv\": set non-volatile attribute\n"
" \"-bs\": set boot-service attribute\n"
" \"-rt\": set runtime attribute\n"
" \"-at\": set time-based authentication attribute\n"
" \"-a\": append-write\n"
" \"-i addr,size\": use <addr,size> as variable's value\n"
" \"-v\": verbose message\n"

5
cmd/nvedit_efi.c
View file

@ -458,7 +458,7 @@ out:
* Return: CMD_RET_SUCCESS on success, or CMD_RET_RET_FAILURE
*
* This function is for "env set -e" or "setenv -e" command:
* => env set -e [-guid guid][-nv][-bs][-rt][-a][-v]
* => env set -e [-guid guid][-nv][-bs][-rt][-at][-a][-v]
* [-i address,size] var, or
* var [value ...]
* Encode values specified and set given UEFI variable.
@ -517,6 +517,9 @@ int do_env_set_efi(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
attributes |= EFI_VARIABLE_RUNTIME_ACCESS;
} else if (!strcmp(argv[0], "-nv")) {
attributes |= EFI_VARIABLE_NON_VOLATILE;
} else if (!strcmp(argv[0], "-at")) {
attributes |=
EFI_VARIABLE_TIME_BASED_AUTHENTICATED_WRITE_ACCESS;
} else if (!strcmp(argv[0], "-a")) {
attributes |= EFI_VARIABLE_APPEND_WRITE;
} else if (!strcmp(argv[0], "-i")) {