systemd/0619-tpm2-allow-tpm2_make_e...

45 lines
1.6 KiB
Diff

From 424f1346bb66fe7aeb252cd6d3cfc660120e9279 Mon Sep 17 00:00:00 2001
From: Dan Streetman <ddstreet@ieee.org>
Date: Fri, 30 Jun 2023 12:57:23 -0400
Subject: [PATCH] tpm2: allow tpm2_make_encryption_session() without bind key
Allow providing no bind key, and use ESYS_TR_NONE instead.
(cherry picked from commit 73592a7cca194a375d78e15df9e33c2d40f2ea74)
Related: RHEL-16182
---
src/shared/tpm2-util.c | 5 +++--
1 file changed, 3 insertions(+), 2 deletions(-)
diff --git a/src/shared/tpm2-util.c b/src/shared/tpm2-util.c
index e743dad392..5a5f4db45e 100644
--- a/src/shared/tpm2-util.c
+++ b/src/shared/tpm2-util.c
@@ -2793,6 +2793,7 @@ static int tpm2_make_encryption_session(
int r;
assert(c);
+ assert(primary);
assert(ret_session);
log_debug("Starting HMAC encryption session.");
@@ -2808,7 +2809,7 @@ static int tpm2_make_encryption_session(
rc = sym_Esys_StartAuthSession(
c->esys_context,
primary->esys_handle,
- bind_key->esys_handle,
+ bind_key ? bind_key->esys_handle : ESYS_TR_NONE,
ESYS_TR_NONE,
ESYS_TR_NONE,
ESYS_TR_NONE,
@@ -3962,7 +3963,7 @@ int tpm2_seal(Tpm2Context *c,
}
_cleanup_(tpm2_handle_freep) Tpm2Handle *encryption_session = NULL;
- r = tpm2_make_encryption_session(c, primary_handle, &TPM2_HANDLE_NONE, &encryption_session);
+ r = tpm2_make_encryption_session(c, primary_handle, /* bind_key= */ NULL, &encryption_session);
if (r < 0)
return r;