diff options
author | AKASHI Takahiro | 2022-07-05 14:48:11 +0900 |
---|---|---|
committer | Heinrich Schuchardt | 2022-07-05 14:37:16 +0200 |
commit | b124efc09fc5f62cc2e17d956ba3c5c9168738e8 (patch) | |
tree | aa9fb9d50c9225efb6b9f12298a526f1f2dc4a3b /include/crypto | |
parent | 0cc846dafcf6f6270c6587d6fe79011834d6e49a (diff) |
lib: crypto: add mscode_parser
In MS authenticode, pkcs7 should have data in its contentInfo field.
This data is tagged with SpcIndirectData type and, for a signed PE image,
provides a image's message digest as SpcPeImageData.
This parser is used in image authentication to parse the field and
retrieve a message digest.
Imported from linux v5.19-rc, crypto/asymmetric_keys/mscode*.
Checkpatch.pl generates tones of warnings, but those are not fixed
for the sake of maintainability (importing from another source).
Signed-off-by: AKASHI Takahiro <takahiro.akashi@linaro.org>
Diffstat (limited to 'include/crypto')
-rw-r--r-- | include/crypto/mscode.h | 43 |
1 files changed, 43 insertions, 0 deletions
diff --git a/include/crypto/mscode.h b/include/crypto/mscode.h new file mode 100644 index 00000000000..551058b96e6 --- /dev/null +++ b/include/crypto/mscode.h @@ -0,0 +1,43 @@ +/* SPDX-License-Identifier: GPL-2.0-or-later */ +/* PE Binary parser bits + * + * Copyright (C) 2014 Red Hat, Inc. All Rights Reserved. + * Written by David Howells (dhowells@redhat.com) + */ + +#include <crypto/pkcs7.h> +#ifndef __UBOOT__ +#include <crypto/hash_info.h> +#endif + +struct pefile_context { +#ifndef __UBOOT__ + unsigned header_size; + unsigned image_checksum_offset; + unsigned cert_dirent_offset; + unsigned n_data_dirents; + unsigned n_sections; + unsigned certs_size; + unsigned sig_offset; + unsigned sig_len; + const struct section_header *secs; +#endif + + /* PKCS#7 MS Individual Code Signing content */ + const void *digest; /* Digest */ + unsigned digest_len; /* Digest length */ + const char *digest_algo; /* Digest algorithm */ +}; + +#ifndef __UBOOT__ +#define kenter(FMT, ...) \ + pr_devel("==> %s("FMT")\n", __func__, ##__VA_ARGS__) +#define kleave(FMT, ...) \ + pr_devel("<== %s()"FMT"\n", __func__, ##__VA_ARGS__) +#endif + +/* + * mscode_parser.c + */ +extern int mscode_parse(void *_ctx, const void *content_data, size_t data_len, + size_t asn1hdrlen); |