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caching of ocsp responses (experimental), no crl caching yet

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This commit is contained in:
Martin Willi
2008-03-26 15:21:50 +00:00
parent 391abda082
commit 7b88a983d8
12 changed files with 205 additions and 287 deletions
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src/libstrongswan/plugins/x509/x509_ocsp_response.c
+29 -29
View File
@@ -31,6 +31,11 @@
#include <credentials/certificates/x509.h>
#include <credentials/certificates/crl.h>
/**
* how long do we use an OCSP response without a nextUpdate
*/
#define OCSP_DEFAULT_LIFETIME 30
typedef struct private_x509_ocsp_response_t private_x509_ocsp_response_t;
/**
@@ -58,10 +63,7 @@ struct private_x509_ocsp_response_t {
int signatureAlgorithm;
/**
* signature enumerator = this->responses->create_enumerator(this->responses);
while (enumerator->enumerate(enumerator, &response))
{
value
* signature
*/
chunk_t signature;
@@ -75,6 +77,11 @@ struct private_x509_ocsp_response_t {
*/
time_t producedAt;
/**
* latest nextUpdate in this OCSP response
*/
time_t usableUntil;
/**
* list of included certificates
*/
@@ -382,8 +389,9 @@ static bool parse_singleResponse(private_x509_ocsp_response_t *this,
response->status = VALIDATION_FAILED;
response->revocationTime = 0;
response->revocationReason = CRL_UNSPECIFIED;
response->thisUpdate = 0;
response->nextUpdate = 0;
response->thisUpdate = UNDEFINED_TIME;
/* if nextUpdate is missing, we give it a short lifetime */
response->nextUpdate = this->producedAt + OCSP_DEFAULT_LIFETIME;
asn1_init(&ctx, blob, level0, FALSE, FALSE);
while (objectID < SINGLE_RESPONSE_ROOF)
@@ -423,17 +431,25 @@ static bool parse_singleResponse(private_x509_ocsp_response_t *this,
}
break;
case SINGLE_RESPONSE_CERT_STATUS_UNKNOWN:
response->status = VALIDATION_UNKNOWN;
response->status = VALIDATION_FAILED;
break;
case SINGLE_RESPONSE_THIS_UPDATE:
response->thisUpdate = asn1totime(&object, ASN1_GENERALIZEDTIME);
break;
case SINGLE_RESPONSE_NEXT_UPDATE:
response->nextUpdate = asn1totime(&object, ASN1_GENERALIZEDTIME);
if (response->nextUpdate > this->usableUntil)
{
this->usableUntil = response->nextUpdate;
}
break;
}
objectID++;
}
if (this->usableUntil == UNDEFINED_TIME)
{
this->usableUntil = this->producedAt + OCSP_DEFAULT_LIFETIME;
}
this->responses->insert_last(this->responses, response);
return TRUE;
}
@@ -643,8 +659,7 @@ static id_match_t has_issuer(private_x509_ocsp_response_t *this,
/**
* Implementation of certificate_t.issued_by
*/
static bool issued_by(private_x509_ocsp_response_t *this, certificate_t *issuer,
bool sigcheck)
static bool issued_by(private_x509_ocsp_response_t *this, certificate_t *issuer)
{
public_key_t *key;
signature_scheme_t scheme;
@@ -685,10 +700,6 @@ static bool issued_by(private_x509_ocsp_response_t *this, certificate_t *issuer,
{
return FALSE;
}
if (!sigcheck)
{
return TRUE;
}
/* TODO: generic OID to scheme mapper? */
switch (this->signatureAlgorithm)
{
@@ -734,19 +745,7 @@ static public_key_t* get_public_key(private_x509_ocsp_response_t *this)
static bool get_validity(private_x509_ocsp_response_t *this, time_t *when,
time_t *not_before, time_t *not_after)
{
enumerator_t *enumerator;
single_response_t *response;
time_t thisUpdate = this->producedAt;
time_t nextUpdate = 0;
time_t t;
enumerator = this->responses->create_enumerator(this->responses);
if (enumerator->enumerate(enumerator, &response))
{
thisUpdate = response->thisUpdate;
nextUpdate = response->nextUpdate;
}
enumerator->destroy(enumerator);
if (when == NULL)
{
@@ -758,13 +757,13 @@ static bool get_validity(private_x509_ocsp_response_t *this, time_t *when,
}
if (not_before)
{
*not_before = thisUpdate;
*not_before = this->producedAt;
}
if (not_after)
{
*not_after = nextUpdate;
*not_after = this->usableUntil;
}
return (t < nextUpdate);
return (t < this->usableUntil);
}
/**
@@ -853,7 +852,7 @@ static x509_ocsp_response_t *load(chunk_t data)
this->public.interface.certificate.get_issuer = (identification_t* (*)(certificate_t *this))get_issuer;
this->public.interface.certificate.has_subject = (id_match_t(*)(certificate_t*, identification_t *subject))has_issuer;
this->public.interface.certificate.has_issuer = (id_match_t(*)(certificate_t*, identification_t *issuer))has_issuer;
this->public.interface.certificate.issued_by = (bool (*)(certificate_t *this, certificate_t *issuer,bool))issued_by;
this->public.interface.certificate.issued_by = (bool (*)(certificate_t *this, certificate_t *issuer))issued_by;
this->public.interface.certificate.get_public_key = (public_key_t* (*)(certificate_t *this))get_public_key;
this->public.interface.certificate.get_validity = (bool(*)(certificate_t*, time_t *when, time_t *, time_t*))get_validity;
this->public.interface.certificate.is_newer = (bool (*)(certificate_t*,certificate_t*))is_newer;
@@ -869,6 +868,7 @@ static x509_ocsp_response_t *load(chunk_t data)
this->tbsResponseData = chunk_empty;
this->responderId = NULL;
this->producedAt = UNDEFINED_TIME;
this->usableUntil = UNDEFINED_TIME;
this->responses = linked_list_create();
this->nonce = chunk_empty;
this->signatureAlgorithm = OID_UNKNOWN;