112 lines
4.5 KiB
Diff
112 lines
4.5 KiB
Diff
From d77514273aa88f67b85c398a222ab2195c42f5fd Mon Sep 17 00:00:00 2001
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From: Ken Goldman <kgold@linux.ibm.com>
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Date: Tue, 31 Aug 2021 13:45:21 -0400
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Subject: [PATCH 4/7] utils: Clean up certifyx509 memory allocation
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Make TPM_ADDTOCERT input const. Annotate malloc and free calls. Free
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TPM_PARTIAL_CERT. Use TPM_ADDTOCERT_free. Remove unused
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x509IssuerName and x509SubjectName and their frees. Free
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TPM_PARTIAL_CERT issuer and subject because createX509Name() mallocs.
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Signed-off-by: Ken Goldman <kgold@linux.ibm.com>
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---
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utils/certifyx509.c | 26 +++++++++++++++++---------
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1 file changed, 17 insertions(+), 9 deletions(-)
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diff --git a/utils/certifyx509.c b/utils/certifyx509.c
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index 5602f62..8ac5abd 100644
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--- a/utils/certifyx509.c
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+++ b/utils/certifyx509.c
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@@ -147,7 +147,7 @@ TPM_RC createPartialCertificate(TPM_PARTIAL_CERT *certificate,
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TPM_RC reformCertificate(X509 *x509Certificate,
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TPMI_ALG_HASH halg,
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TPMI_ALG_SIG_SCHEME scheme,
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- TPM_ADDTOCERT *addToCert,
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+ const TPM_ADDTOCERT *addToCert,
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TPMT_SIGNATURE *tSignature);
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TPM_RC addSignatureRsa(X509 *x509Certificate,
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TPMI_ALG_HASH halg,
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@@ -618,7 +618,7 @@ int main(int argc, char *argv[])
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if (rc == 0) {
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if (verbose) X509_print_fp(stdout, x509Certificate); /* for debug */
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rc = convertX509ToDer(&x509DerLength,
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- &x509Der, /* freed @2 */
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+ &x509Der, /* freed @4 */
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x509Certificate);
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}
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if ((rc == 0) && (outCertificateFilename != NULL)) {
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@@ -628,8 +628,13 @@ int main(int argc, char *argv[])
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if (x509Certificate != NULL) {
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X509_free(x509Certificate); /* @1 */
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}
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- free(x509Der); /* @2 */
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- OPENSSL_free(addToCert); /* @3 */
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+ if (partialCertificate != NULL) {
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+ TPM_PARTIAL_CERT_free(partialCertificate); /* @2 */
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+ }
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+ if (addToCert != NULL) {
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+ TPM_ADDTOCERT_free(addToCert); /* @3 */
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+ }
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+ free(x509Der); /* @4 */
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return rc;
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}
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@@ -683,8 +688,6 @@ TPM_RC createPartialCertificate(TPM_PARTIAL_CERT *partialCertificate, /* input /
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int irc;
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ASN1_TIME *arc; /* return code */
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- X509_NAME *x509IssuerName = NULL; /* composite issuer name, key/value pairs */
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- X509_NAME *x509SubjectName = NULL;/* composite subject name, key/value pairs */
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size_t issuerEntriesSize = sizeof(issuerEntries)/sizeof(char *);
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size_t subjectEntriesSize = sizeof(subjectEntries)/sizeof(char *);
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uint8_t *tmpPartialDer = NULL; /* for the i2d */
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@@ -693,6 +696,9 @@ TPM_RC createPartialCertificate(TPM_PARTIAL_CERT *partialCertificate, /* input /
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if (rc == 0) {
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if (verbose) printf("createPartialCertificate: Adding issuer, size %lu\n",
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(unsigned long)issuerEntriesSize);
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+ /* _new allocates the member. free it because createX509Name() allocates a new structure */
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+ X509_NAME_free(partialCertificate->issuer);
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+ partialCertificate->issuer = NULL;
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rc = createX509Name(&partialCertificate->issuer, /* freed @1 */
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issuerEntriesSize,
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issuerEntries);
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@@ -746,6 +752,8 @@ TPM_RC createPartialCertificate(TPM_PARTIAL_CERT *partialCertificate, /* input /
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if (!subeqiss) {
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if (verbose) printf("createPartialCertificate: Adding subject, size %lu\n",
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(unsigned long)subjectEntriesSize);
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+ X509_NAME_free(partialCertificate->subject);
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+ partialCertificate->subject = NULL;
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rc = createX509Name(&partialCertificate->subject, /* freed @2 */
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subjectEntriesSize,
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subjectEntries);
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@@ -754,6 +762,8 @@ TPM_RC createPartialCertificate(TPM_PARTIAL_CERT *partialCertificate, /* input /
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else {
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if (verbose) printf("createPartialCertificate: Adding subject (issuer), size %lu\n",
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(unsigned long)issuerEntriesSize);
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+ X509_NAME_free(partialCertificate->subject);
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+ partialCertificate->subject = NULL;
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rc = createX509Name(&partialCertificate->subject, /* freed @2 */
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issuerEntriesSize,
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issuerEntries);
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@@ -806,8 +816,6 @@ TPM_RC createPartialCertificate(TPM_PARTIAL_CERT *partialCertificate, /* input /
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if (verbose) X509_print_fp(stdout, x509Certificate);
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}
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#endif
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- X509_NAME_free(x509IssuerName); /* @1 */
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- X509_NAME_free(x509SubjectName); /* @2 */
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OPENSSL_free(tmpPartialDer); /* @3 */
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return rc;
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}
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@@ -956,7 +964,7 @@ TPM_RC addPartialCertExtensionTpmaOid(TPM_PARTIAL_CERT *partialCertificate,
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TPM_RC reformCertificate(X509 *x509Certificate,
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TPMI_ALG_HASH halg,
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TPMI_ALG_SIG_SCHEME scheme,
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- TPM_ADDTOCERT *addToCert,
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+ const TPM_ADDTOCERT *addToCert,
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TPMT_SIGNATURE *tSignature)
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{
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TPM_RC rc = 0;
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--
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2.34.1
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