efi_loader: signature: export efi_hash_regions()

This function is used to calculate a message digest as part of
authentication process in a later patch.

Signed-off-by: AKASHI Takahiro <takahiro.akashi@linaro.org>

diff --git a/include/efi_loader.h b/include/efi_loader.h
index c1e00eb..11930fb 100644 (file)
--- a/include/efi_loader.h
+++ b/include/efi_loader.h
@@ -931,6 +931,8 @@ struct efi_signature_store {
 struct x509_certificate;
 struct pkcs7_message;
 
+bool efi_hash_regions(struct image_region *regs, int count,
+                     void **hash, const char *hash_algo, int *len);
 bool efi_signature_lookup_digest(struct efi_image_regions *regs,
                                 struct efi_signature_store *db,
                                 bool dbx);

diff --git a/lib/efi_loader/efi_signature.c b/lib/efi_loader/efi_signature.c
index ddac751..742d891 100644 (file)
--- a/lib/efi_loader/efi_signature.c
+++ b/lib/efi_loader/efi_signature.c
@@ -125,8 +125,8 @@ struct pkcs7_message *efi_parse_pkcs7_header(const void *buf,
  *
  * Return:     true on success, false on error
  */
-static bool efi_hash_regions(struct image_region *regs, int count,
-                            void **hash, const char *hash_algo, int *len)
+bool efi_hash_regions(struct image_region *regs, int count,
+                     void **hash, const char *hash_algo, int *len)
 {
        int ret, hash_len;