linux-kernel - [PATCH v5 1/2] certs: export load_certificate

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Message-Id: <20211124204714.82514-2-nayna@linux.ibm.com>
Date:   Wed, 24 Nov 2021 15:47:13 -0500
From:   Nayna Jain <nayna@...ux.ibm.com>
To:     linux-integrity@...r.kernel.org, keyrings@...r.kernel.org
Cc:     dhowells@...hat.com, zohar@...ux.ibm.com, jarkko@...nel.org,
        linux-security-module@...r.kernel.org,
        linux-kernel@...r.kernel.org,
        Dimitri John Ledkov <dimitri.ledkov@...onical.com>,
        Seth Forshee <seth@...shee.me>,
        Nayna Jain <nayna@...ux.ibm.com>,
        kernel test robot <lkp@...el.com>
Subject: [PATCH v5 1/2] certs: export load_certificate_list() to be used outside certs/

load_certificate_list() parses certificates embedded in the kernel
image to load them onto the keyring.

Commit "2565ca7f5ec1 (certs: Move load_system_certificate_list to a common
function)" made load_certificate_list() a common function in the certs/
directory. Now, export load_certificate_list() outside certs/ to be used
by other functions.

Reported-by: kernel test robot <lkp@...el.com> (auto build test ERROR)
Signed-off-by: Nayna Jain <nayna@...ux.ibm.com>
---
 certs/Makefile                | 5 +++--
 certs/blacklist.c             | 1 -
 certs/common.c                | 2 +-
 certs/common.h                | 9 ---------
 certs/system_keyring.c        | 1 -
 include/keys/system_keyring.h | 6 ++++++
 6 files changed, 10 insertions(+), 14 deletions(-)
 delete mode 100644 certs/common.h

diff --git a/certs/Makefile b/certs/Makefile
index 279433783b10..6f26c93ff56b 100644
--- a/certs/Makefile
+++ b/certs/Makefile
@@ -3,8 +3,9 @@
 # Makefile for the linux kernel signature checking certificates.
 #
 
-obj-$(CONFIG_SYSTEM_TRUSTED_KEYRING) += system_keyring.o system_certificates.o common.o
-obj-$(CONFIG_SYSTEM_BLACKLIST_KEYRING) += blacklist.o common.o
+obj-$(CONFIG_KEYS) += common.o
+obj-$(CONFIG_SYSTEM_TRUSTED_KEYRING) += system_keyring.o system_certificates.o
+obj-$(CONFIG_SYSTEM_BLACKLIST_KEYRING) += blacklist.o
 obj-$(CONFIG_SYSTEM_REVOCATION_LIST) += revocation_certificates.o
 ifneq ($(CONFIG_SYSTEM_BLACKLIST_HASH_LIST),"")
 obj-$(CONFIG_SYSTEM_BLACKLIST_KEYRING) += blacklist_hashes.o
diff --git a/certs/blacklist.c b/certs/blacklist.c
index c9a435b15af4..b95e9b19c42f 100644
--- a/certs/blacklist.c
+++ b/certs/blacklist.c
@@ -17,7 +17,6 @@
 #include <linux/uidgid.h>
 #include <keys/system_keyring.h>
 #include "blacklist.h"
-#include "common.h"
 
 static struct key *blacklist_keyring;
 
diff --git a/certs/common.c b/certs/common.c
index 16a220887a53..41f763415a00 100644
--- a/certs/common.c
+++ b/certs/common.c
@@ -2,7 +2,7 @@
 
 #include <linux/kernel.h>
 #include <linux/key.h>
-#include "common.h"
+#include <keys/system_keyring.h>
 
 int load_certificate_list(const u8 cert_list[],
 			  const unsigned long list_size,
diff --git a/certs/common.h b/certs/common.h
deleted file mode 100644
index abdb5795936b..000000000000
--- a/certs/common.h
+++ /dev/null
@@ -1,9 +0,0 @@
-/* SPDX-License-Identifier: GPL-2.0-or-later */
-
-#ifndef _CERT_COMMON_H
-#define _CERT_COMMON_H
-
-int load_certificate_list(const u8 cert_list[], const unsigned long list_size,
-			  const struct key *keyring);
-
-#endif
diff --git a/certs/system_keyring.c b/certs/system_keyring.c
index 692365dee2bd..d130d5a96e09 100644
--- a/certs/system_keyring.c
+++ b/certs/system_keyring.c
@@ -16,7 +16,6 @@
 #include <keys/asymmetric-type.h>
 #include <keys/system_keyring.h>
 #include <crypto/pkcs7.h>
-#include "common.h"
 
 static struct key *builtin_trusted_keys;
 #ifdef CONFIG_SECONDARY_TRUSTED_KEYRING
diff --git a/include/keys/system_keyring.h b/include/keys/system_keyring.h
index 6acd3cf13a18..d3f914d9a632 100644
--- a/include/keys/system_keyring.h
+++ b/include/keys/system_keyring.h
@@ -10,6 +10,12 @@
 
 #include <linux/key.h>
 
+#ifdef CONFIG_KEYS
+int load_certificate_list(const u8 cert_list[],
+			  const unsigned long list_size,
+			  const struct key *keyring);
+#endif
+
 #ifdef CONFIG_SYSTEM_TRUSTED_KEYRING
 
 extern int restrict_link_by_builtin_trusted(struct key *keyring,
-- 
2.27.0