Proxmox-Port/swtpm
1
0
Fork 0
mirror of https://github.com/stefanberger/swtpm.git synced 2026-01-09 05:44:10 +00:00
Code Issues Actions Packages Projects Releases Wiki Activity

swtpm_cert: factor out encode_asn1 function

Browse Source 
Move common code into encode_asn1 function.

Signed-off-by: Stefan Berger <stefanb@linux.vnet.ibm.com>
This commit is contained in:
Stefan Berger 2018-04-16 15:16:17 -04:00
parent 8740ec5765
commit c8c2ff3eaa
1 changed files with 30 additions and 34 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

64
src/swtpm_cert/ek-cert.c
View File

@ -242,6 +242,34 @@ cleanup:
return err;
}
static int
encode_asn1(gnutls_datum_t *asn1, ASN1_TYPE at)
{
int err;
/* determine needed size of byte array */
asn1->size = 0;
err = asn1_der_coding(at, "", NULL, (int *)&asn1->size, NULL);
if (err != ASN1_MEM_ERROR) {
fprintf(stderr, "1. asn1_der_coding error: %d\n", err);
return err;
}
asn1->data = gnutls_malloc(asn1->size + 16);
if (!asn1->data) {
fprintf(stderr, "2. Could not allocate memory\n");
return ASN1_MEM_ERROR;
}
err = asn1_der_coding(at, "", asn1->data, (int *)&asn1->size, NULL);
if (err != ASN1_SUCCESS) {
fprintf(stderr, "3. asn1_der_coding error: %d\n", err);
gnutls_free(asn1->data);
asn1->data = NULL;
}
return err;
}
static int
create_tpm_manufacturer_info(const char *manufacturer,
const char *tpm_model,
@ -320,24 +348,8 @@ create_tpm_manufacturer_info(const char *manufacturer,
fprintf(stderr, "6. asn1_write_value error: %d\n", err);
goto cleanup;
}
/* determine needed size of byte array */
asn1->size = 0;
err = asn1_der_coding(at, "", NULL, (int *)&asn1->size, NULL);
if (err != ASN1_MEM_ERROR) {
fprintf(stderr, "1. asn1_der_coding error: %d\n", err);
goto cleanup;
}
//fprintf(stderr, "size=%d\n", asn1->size);
asn1->data = gnutls_malloc(asn1->size + 16);
err = asn1_der_coding(at, "", asn1->data, (int *)&asn1->size, NULL);
if (err != ASN1_SUCCESS) {
fprintf(stderr, "2. asn1_der_coding error: %d\n", err);
gnutls_free(asn1->data);
asn1->data = NULL;
goto cleanup;
}
err = encode_asn1(asn1, at);
#if 0
fprintf(stderr, "size=%d\n", asn1->size);
@ -437,23 +449,7 @@ create_platf_manufacturer_info(const char *manufacturer,
goto cleanup;
}
/* determine needed size of byte array */
asn1->size = 0;
err = asn1_der_coding(at, "", NULL, (int *)&asn1->size, NULL);
if (err != ASN1_MEM_ERROR) {
fprintf(stderr, "b1. asn1_der_coding error: %d\n", err);
goto cleanup;
}
//fprintf(stderr, "size=%d\n", asn1->size);
asn1->data = gnutls_malloc(asn1->size + 16);
err = asn1_der_coding(at, "", asn1->data, (int *)&asn1->size, NULL);
if (err != ASN1_SUCCESS) {
fprintf(stderr, "b2. asn1_der_coding error: %d\n", err);
gnutls_free(asn1->data);
asn1->data = NULL;
goto cleanup;
}
err = encode_asn1(asn1, at);
#if 0
fprintf(stderr, "size=%d\n", asn1->size);