diff options
Diffstat (limited to 'lib/efi_loader/efi_variable.c')
| -rw-r--r-- | lib/efi_loader/efi_variable.c | 19 |
1 files changed, 10 insertions, 9 deletions
diff --git a/lib/efi_loader/efi_variable.c b/lib/efi_loader/efi_variable.c index c316bdfec0..fe2f264591 100644 --- a/lib/efi_loader/efi_variable.c +++ b/lib/efi_loader/efi_variable.c @@ -1,8 +1,8 @@ // SPDX-License-Identifier: GPL-2.0+ /* - * EFI utils + * UEFI runtime variable services * - * Copyright (c) 2017 Rob Clark + * Copyright (c) 2017 Rob Clark */ #include <common.h> @@ -273,7 +273,8 @@ static efi_status_t parse_uboot_variable(char *variable, u32 *attributes) { char *guid, *name, *end, c; - unsigned long name_len; + size_t name_len; + efi_uintn_t old_variable_name_size; u16 *p; guid = strchr(variable, '_'); @@ -289,17 +290,17 @@ static efi_status_t parse_uboot_variable(char *variable, return EFI_INVALID_PARAMETER; name_len = end - name; - if (*variable_name_size < (name_len + 1)) { - *variable_name_size = name_len + 1; + old_variable_name_size = *variable_name_size; + *variable_name_size = sizeof(u16) * (name_len + 1); + if (old_variable_name_size < *variable_name_size) return EFI_BUFFER_TOO_SMALL; - } + end++; /* point to value */ /* variable name */ p = variable_name; utf8_utf16_strncpy(&p, name, name_len); variable_name[name_len] = 0; - *variable_name_size = name_len + 1; /* guid */ c = *(name - 1); @@ -329,7 +330,7 @@ static efi_status_t parse_uboot_variable(char *variable, */ efi_status_t EFIAPI efi_get_next_variable_name(efi_uintn_t *variable_name_size, u16 *variable_name, - const efi_guid_t *vendor) + efi_guid_t *vendor) { char *native_name, *variable; ssize_t name_len, list_len; @@ -597,7 +598,7 @@ efi_get_variable_runtime(u16 *variable_name, const efi_guid_t *vendor, */ static efi_status_t __efi_runtime EFIAPI efi_get_next_variable_name_runtime(efi_uintn_t *variable_name_size, - u16 *variable_name, const efi_guid_t *vendor) + u16 *variable_name, efi_guid_t *vendor) { return EFI_UNSUPPORTED; } |