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| author | Heinrich Schuchardt <xypron.glpk@gmx.de> | 2020-08-23 10:49:46 +0200 |
|---|---|---|
| committer | Heinrich Schuchardt <xypron.glpk@gmx.de> | 2020-08-24 16:37:53 +0200 |
| commit | 5cad4a30932a31f1646510d35af7e9e36f71708a (patch) | |
| tree | 6f1fdb4a9cbb0dfd88065fe672dfaace03119ab4 /include/efi_loader.h | |
| parent | ed0b10722c880d82e5da2a357122f5ae0e53d4db (diff) | |
| download | u-boot-5cad4a30932a31f1646510d35af7e9e36f71708a.tar.gz | |
efi_loader: efi_dp_check_length()
We need to check that device paths provided via UEFI variables are not
malformed.
Provide function efi_dp_check_length() to check if a device path has an
end node within a given number of bytes.
Signed-off-by: Heinrich Schuchardt <xypron.glpk@gmx.de>
Diffstat (limited to 'include/efi_loader.h')
| -rw-r--r-- | include/efi_loader.h | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/include/efi_loader.h b/include/efi_loader.h index 50a17a33ca..0baa1d2324 100644 --- a/include/efi_loader.h +++ b/include/efi_loader.h @@ -631,6 +631,8 @@ efi_status_t efi_dp_from_name(const char *dev, const char *devnr, const char *path, struct efi_device_path **device, struct efi_device_path **file); +ssize_t efi_dp_check_length(const struct efi_device_path *dp, + const size_t maxlen); #define EFI_DP_TYPE(_dp, _type, _subtype) \ (((_dp)->type == DEVICE_PATH_TYPE_##_type) && \ |