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Migrated scepclient to new modular PKCS# API

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This commit is contained in:
Martin Willi
2012-12-19 10:32:08 +01:00
parent 6d21c61a09
commit 74cc41c704
3 changed files with 172 additions and 95 deletions
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src/scepclient/scepclient.c
+69 -20
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@@ -40,6 +40,7 @@
#include <credentials/certificates/certificate.h>
#include <credentials/certificates/x509.h>
#include <credentials/certificates/pkcs10.h>
#include <credentials/sets/mem_cred.h>
#include <plugins/plugin.h>
#include "scep.h"
@@ -140,6 +141,8 @@ certificate_t *x509_ca_enc = NULL;
certificate_t *x509_ca_sig = NULL;
certificate_t *pkcs10_req = NULL;
mem_cred_t *creds = NULL;
/* logging */
static bool log_to_stderr = TRUE;
static bool log_to_syslog = TRUE;
@@ -255,6 +258,12 @@ static void exit_scepclient(err_t message, ...)
{
int status = 0;
if (creds)
{
lib->credmgr->remove_set(lib->credmgr, &creds->set);
creds->destroy(creds);
}
DESTROY_IF(subject);
DESTROY_IF(private_key);
DESTROY_IF(public_key);
@@ -926,6 +935,7 @@ int main(int argc, char **argv)
if (request_ca_certificate)
{
char ca_path[PATH_MAX];
container_t *container;
pkcs7_t *pkcs7;
if (!scep_http_request(scep_url, chunk_create(ca_name, strlen(ca_name)),
@@ -936,10 +946,13 @@ int main(int argc, char **argv)
join_paths(ca_path, sizeof(ca_path), CA_CERT_PATH, file_out_ca_cert);
pkcs7 = pkcs7_create_from_chunk(scep_response, 0);
if (!pkcs7 || !pkcs7->parse_signedData(pkcs7, NULL))
pkcs7 = lib->creds->create(lib->creds, CRED_CONTAINER, CONTAINER_PKCS7,
BUILD_BLOB_ASN1_DER, scep_response, BUILD_END);
if (!pkcs7)
{ /* no PKCS#7 encoded CA+RA certificates, assume simple CA cert */
DESTROY_IF(pkcs7);
DBG1(DBG_APP, "unable to parse PKCS#7, assuming plain CA cert");
if (!chunk_write(scep_response, ca_path, "ca cert", 0022, force))
{
exit_scepclient("could not write ca cert file '%s'", ca_path);
@@ -952,7 +965,7 @@ int main(int argc, char **argv)
int ra_certs = 0, ca_certs = 0;
int ra_index = 1, ca_index = 1;
enumerator = pkcs7->create_certificate_enumerator(pkcs7);
enumerator = pkcs7->create_cert_enumerator(pkcs7);
while (enumerator->enumerate(enumerator, &cert))
{
x509_t *x509 = (x509_t*)cert;
@@ -967,7 +980,7 @@ int main(int argc, char **argv)
}
enumerator->destroy(enumerator);
enumerator = pkcs7->create_certificate_enumerator(pkcs7);
enumerator = pkcs7->create_cert_enumerator(pkcs7);
while (enumerator->enumerate(enumerator, &cert))
{
x509_t *x509 = (x509_t*)cert;
@@ -1004,11 +1017,15 @@ int main(int argc, char **argv)
chunk_free(&encoding);
}
enumerator->destroy(enumerator);
pkcs7->destroy(pkcs7);
container = &pkcs7->container;
container->destroy(container);
}
exit_scepclient(NULL); /* no further output required */
}
creds = mem_cred_create();
lib->credmgr->add_set(lib->credmgr, &creds->set);
/*
* input of PKCS#1 file
*/
@@ -1031,6 +1048,7 @@ int main(int argc, char **argv)
{
exit_scepclient("no RSA private key available");
}
creds->add_key(creds, private_key->get_ref(private_key));
public_key = private_key->get_public_key(private_key);
/* check for minimum key length */
@@ -1181,6 +1199,7 @@ int main(int argc, char **argv)
exit_scepclient("generating certificate failed");
}
}
creds->add_cert(creds, TRUE, x509_signer->get_ref(x509_signer));
/*
* output of self-signed X.509 certificate file
@@ -1281,7 +1300,9 @@ int main(int argc, char **argv)
enumerator_t *enumerator;
char path[PATH_MAX];
time_t poll_start = 0;
pkcs7_t *data = NULL;
pkcs7_t *p7;
container_t *container = NULL;
chunk_t chunk;
scep_attributes_t attrs = empty_scep_attributes;
join_paths(path, sizeof(path), CA_CERT_PATH, file_in_cacert_sig);
@@ -1293,13 +1314,14 @@ int main(int argc, char **argv)
exit_scepclient("could not load signature cacert file '%s'", path);
}
creds->add_cert(creds, TRUE, x509_ca_sig->get_ref(x509_ca_sig));
if (!scep_http_request(scep_url, pkcs7, SCEP_PKI_OPERATION,
http_get_request, &scep_response))
{
exit_scepclient("did not receive a valid scep response");
}
ugh = scep_parse_response(scep_response, transID, &data, &attrs,
x509_ca_sig);
ugh = scep_parse_response(scep_response, transID, &container, &attrs);
if (ugh != NULL)
{
exit_scepclient(ugh);
@@ -1328,7 +1350,7 @@ int main(int argc, char **argv)
DBG2(DBG_APP, "going to sleep for %d seconds", poll_interval);
sleep(poll_interval);
free(scep_response.ptr);
data->destroy(data);
container->destroy(container);
DBG2(DBG_APP, "fingerprint: %.*s",
(int)fingerprint.len, fingerprint.ptr);
@@ -1349,8 +1371,7 @@ int main(int argc, char **argv)
{
exit_scepclient("did not receive a valid scep response");
}
ugh = scep_parse_response(scep_response, transID, &data, &attrs,
x509_ca_sig);
ugh = scep_parse_response(scep_response, transID, &container, &attrs);
if (ugh != NULL)
{
exit_scepclient(ugh);
@@ -1359,25 +1380,53 @@ int main(int argc, char **argv)
if (attrs.pkiStatus != SCEP_SUCCESS)
{
data->destroy(data);
container->destroy(container);
exit_scepclient("reply status is not 'SUCCESS'");
}
if (!data->parse_envelopedData(data, serialNumber, private_key))
if (!container->get_data(container, &chunk))
{
container->destroy(container);
exit_scepclient("extracting signed-data failed");
}
container->destroy(container);
/* decrypt enveloped-data container */
container = lib->creds->create(lib->creds,
CRED_CONTAINER, CONTAINER_PKCS7,
BUILD_BLOB_ASN1_DER, chunk,
BUILD_END);
free(chunk.ptr);
if (!container)
{
data->destroy(data);
exit_scepclient("could not decrypt envelopedData");
}
if (!data->parse_signedData(data, NULL))
if (!container->get_data(container, &chunk))
{
data->destroy(data);
exit_scepclient("error parsing the scep response");
container->destroy(container);
exit_scepclient("extracting signed-data failed");
}
container->destroy(container);
/* parse signed-data container */
container = lib->creds->create(lib->creds,
CRED_CONTAINER, CONTAINER_PKCS7,
BUILD_BLOB_ASN1_DER, chunk,
BUILD_END);
free(chunk.ptr);
if (!container)
{
exit_scepclient("could not parse singed-data");
}
/* no need to verify the signed-data container, the signature does NOT
* cover the contained certificates */
/* store the end entity certificate */
join_paths(path, sizeof(path), HOST_CERT_PATH, file_out_cert);
enumerator = data->create_certificate_enumerator(data);
p7 = (pkcs7_t*)container;
enumerator = p7->create_cert_enumerator(p7);
while (enumerator->enumerate(enumerator, &cert))
{
x509_t *x509 = (x509_t*)cert;
@@ -1398,7 +1447,7 @@ int main(int argc, char **argv)
}
}
enumerator->destroy(enumerator);
data->destroy(data);
container->destroy(container);
filetype_out &= ~CERT; /* delete CERT flag */
}