[Xen-devel] [PATCH v4 13/14] vTPM/TPM2: Unind group keys and sectors data on disk

[Quan Xu <quan.xu@xxxxxxxxx>]

Signed-off-by: Quan Xu <quan.xu@xxxxxxxxx>
---
 stubdom/vtpmmgr/disk_read.c | 17 +++++++++++++++--
 1 file changed, 15 insertions(+), 2 deletions(-)

diff --git a/stubdom/vtpmmgr/disk_read.c b/stubdom/vtpmmgr/disk_read.c
index 33aacdd..e9dc20f 100644
--- a/stubdom/vtpmmgr/disk_read.c
+++ b/stubdom/vtpmmgr/disk_read.c
@@ -67,6 +67,7 @@ static int find_group_key(struct mem_group *dst,
                const struct mem_tpm_mgr *parent)
 {
        int i, rc, rv = 1;
+    unsigned int olen;
        struct hash160 buf;
        struct disk_group_sealed_data sealed;
 
@@ -88,7 +89,13 @@ static int find_group_key(struct mem_group *dst,
                TPM_pcr_digest(&buf, cfg->pcr_selection);
                if (memcmp(&buf, &cfg->digest_release, 20))
                        continue;
-               rc = TPM_disk_unseal(&sealed, sizeof(sealed), cfg);
+
+        /*TPM 2.0 unbind | TPM 1.x unseal*/
+        if (hw_is_tpm2())
+            rc = TPM2_disk_unbind(&sealed, &olen, cfg);
+        else
+            rc = TPM_disk_unseal(&sealed, sizeof(sealed), cfg);
+
                if (rc)
                        continue;
                if (memcmp(&sealed.magic, DISK_GROUP_BOUND_MAGIC, 4))
@@ -112,9 +119,15 @@ static int find_group_key(struct mem_group *dst,
 static int parse_root_key(struct mem_tpm_mgr *dst, struct disk_seal_entry *src)
 {
        int rc;
+    unsigned int olen;
        struct disk_root_sealed_data sealed;
 
-       rc = TPM_disk_unseal(&sealed, sizeof(sealed), src);
+    /*TPM 2.0 unbind | TPM 1.x unseal*/
+    if (hw_is_tpm2())
+        rc = TPM2_disk_unbind(&sealed, &olen, src);
+    else
+        rc = TPM_disk_unseal(&sealed, sizeof(sealed), src);
+
        if (rc)
                return rc;
 
-- 
1.8.3.2


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