Linux-Integrity Archive on lore.kernel.org
 help / color / Atom feed
From: dbaryshkov@gmail.com
To: linux-integrity@vger.kernel.org
Cc: Dmitry Baryshkov <dbaryshkov@gmail.com>
Subject: [PATCH] evmctl: support verification of portable EVM signatures
Date: Thu, 26 Mar 2020 19:27:23 +0300
Message-ID: <20200326162723.3716670-1-dbaryshkov@gmail.com> (raw)

From: Dmitry Baryshkov <dbaryshkov@gmail.com>

EVM signature code checked explicitly checked for signature type to be
EVM_IMA_XATTR_DIGSIG (0x03). Allow it to be either EVM_IMA_XATTR_DIGSIG
or EVM_XATTR_PORTABLE_DIGSIG.

Signed-off-by: Dmitry Baryshkov <dbaryshkov@gmail.com>
---
 src/evmctl.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/evmctl.c b/src/evmctl.c
index b02be8b1507a..b3f6f65523ef 100644
--- a/src/evmctl.c
+++ b/src/evmctl.c
@@ -824,7 +824,7 @@ static int verify_evm(const char *file)
 		return len;
 	}
 
-	if (sig[0] != 0x03) {
+	if (sig[0] != EVM_IMA_XATTR_DIGSIG || sig[0] != EVM_XATTR_PORTABLE_DIGSIG) {
 		log_err("%s has no signature\n", xattr_evm);
 		return -1;
 	}
-- 
2.25.1


                 reply index

Thread overview: [no followups] expand[flat|nested]  mbox.gz  Atom feed

Reply instructions:

You may reply publicly to this message via plain-text email
using any one of the following methods:

* Save the following mbox file, import it into your mail client,
  and reply-to-all from there: mbox

  Avoid top-posting and favor interleaved quoting:
  https://en.wikipedia.org/wiki/Posting_style#Interleaved_style

* Reply using the --to, --cc, and --in-reply-to
  switches of git-send-email(1):

  git send-email \
    --in-reply-to=20200326162723.3716670-1-dbaryshkov@gmail.com \
    --to=dbaryshkov@gmail.com \
    --cc=linux-integrity@vger.kernel.org \
    /path/to/YOUR_REPLY

  https://kernel.org/pub/software/scm/git/docs/git-send-email.html

* If your mail client supports setting the In-Reply-To header
  via mailto: links, try the mailto: link

Linux-Integrity Archive on lore.kernel.org

Archives are clonable:
	git clone --mirror https://lore.kernel.org/linux-integrity/0 linux-integrity/git/0.git

	# If you have public-inbox 1.1+ installed, you may
	# initialize and index your mirror using the following commands:
	public-inbox-init -V2 linux-integrity linux-integrity/ https://lore.kernel.org/linux-integrity \
		linux-integrity@vger.kernel.org
	public-inbox-index linux-integrity

Example config snippet for mirrors

Newsgroup available over NNTP:
	nntp://nntp.lore.kernel.org/org.kernel.vger.linux-integrity


AGPL code for this site: git clone https://public-inbox.org/public-inbox.git