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strongswan/src/pluto/fetch.c

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/* Dynamic fetching of X.509 CRLs
* Copyright (C) 2002 Stephane Laroche <stephane.laroche@colubris.com>
* Copyright (C) 2002-2004 Andreas Steffen, Zuercher Hochschule Winterthur
*
* This program is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License as published by the
* Free Software Foundation; either version 2 of the License, or (at your
* option) any later version. See <http://www.fsf.org/copyleft/gpl.txt>.
*
* This program is distributed in the hope that it will be useful, but
* WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
* or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
* for more details.
*
* RCSID $Id$
*/
#include <stdlib.h>
#include <errno.h>
#include <sys/time.h>
#include <time.h>
#include <string.h>
#ifdef THREADS
#include <pthread.h>
#endif
#ifdef LIBCURL
#include <curl/curl.h>
#endif
#include <freeswan.h>
#ifdef LIBLDAP
#ifndef LDAP_DEPRECATED
#define LDAP_DEPRECATED 1
#endif
#include <ldap.h>
#endif
#include "constants.h"
#include "defs.h"
#include "log.h"
#include "id.h"
#include "asn1.h"
#include "pem.h"
#include "x509.h"
#include "ca.h"
#include "whack.h"
#include "ocsp.h"
#include "crl.h"
#include "fetch.h"
fetch_req_t empty_fetch_req = {
NULL , /* next */
0 , /* installed */
0 , /* trials */
{ NULL, 0}, /* issuer */
{ NULL, 0}, /* authKeyID */
{ NULL, 0}, /* authKeySerialNumber */
NULL /* distributionPoints */
};
/* chained list of crl fetch requests */
static fetch_req_t *crl_fetch_reqs = NULL;
/* chained list of ocsp fetch requests */
static ocsp_location_t *ocsp_fetch_reqs = NULL;
#ifdef THREADS
static pthread_t thread;
static pthread_mutex_t certs_and_keys_mutex = PTHREAD_MUTEX_INITIALIZER;
static pthread_mutex_t authcert_list_mutex = PTHREAD_MUTEX_INITIALIZER;
static pthread_mutex_t crl_list_mutex = PTHREAD_MUTEX_INITIALIZER;
static pthread_mutex_t ocsp_cache_mutex = PTHREAD_MUTEX_INITIALIZER;
static pthread_mutex_t ca_info_list_mutex = PTHREAD_MUTEX_INITIALIZER;
static pthread_mutex_t crl_fetch_list_mutex = PTHREAD_MUTEX_INITIALIZER;
static pthread_mutex_t ocsp_fetch_list_mutex = PTHREAD_MUTEX_INITIALIZER;
static pthread_mutex_t fetch_wake_mutex = PTHREAD_MUTEX_INITIALIZER;
static pthread_cond_t fetch_wake_cond = PTHREAD_COND_INITIALIZER;
/*
* lock access to my certs and keys
*/
void
lock_certs_and_keys(const char *who)
{
pthread_mutex_lock(&certs_and_keys_mutex);
DBG(DBG_CONTROLMORE,
DBG_log("certs and keys locked by '%s'", who)
)
}
/*
* unlock access to my certs and keys
*/
void
unlock_certs_and_keys(const char *who)
{
DBG(DBG_CONTROLMORE,
DBG_log("certs and keys unlocked by '%s'", who)
)
pthread_mutex_unlock(&certs_and_keys_mutex);
}
/*
* lock access to the chained authcert list
*/
void
lock_authcert_list(const char *who)
{
pthread_mutex_lock(&authcert_list_mutex);
DBG(DBG_CONTROLMORE,
DBG_log("authcert list locked by '%s'", who)
)
}
/*
* unlock access to the chained authcert list
*/
void
unlock_authcert_list(const char *who)
{
DBG(DBG_CONTROLMORE,
DBG_log("authcert list unlocked by '%s'", who)
)
pthread_mutex_unlock(&authcert_list_mutex);
}
/*
* lock access to the chained crl list
*/
void
lock_crl_list(const char *who)
{
pthread_mutex_lock(&crl_list_mutex);
DBG(DBG_CONTROLMORE,
DBG_log("crl list locked by '%s'", who)
)
}
/*
* unlock access to the chained crl list
*/
void
unlock_crl_list(const char *who)
{
DBG(DBG_CONTROLMORE,
DBG_log("crl list unlocked by '%s'", who)
)
pthread_mutex_unlock(&crl_list_mutex);
}
/*
* lock access to the ocsp cache
*/
extern void
lock_ocsp_cache(const char *who)
{
pthread_mutex_lock(&ocsp_cache_mutex);
DBG(DBG_CONTROLMORE,
DBG_log("ocsp cache locked by '%s'", who)
)
}
/*
* unlock access to the ocsp cache
*/
extern void
unlock_ocsp_cache(const char *who)
{
DBG(DBG_CONTROLMORE,
DBG_log("ocsp cache unlocked by '%s'", who)
)
pthread_mutex_unlock(&ocsp_cache_mutex);
}
/*
* lock access to the ca info list
*/
extern void
lock_ca_info_list(const char *who)
{
pthread_mutex_lock(&ca_info_list_mutex);
DBG(DBG_CONTROLMORE,
DBG_log("ca info list locked by '%s'", who)
)
}
/*
* unlock access to the ca info list
*/
extern void
unlock_ca_info_list(const char *who)
{
DBG(DBG_CONTROLMORE,
DBG_log("ca info list unlocked by '%s'", who)
)
pthread_mutex_unlock(&ca_info_list_mutex);
}
/*
* lock access to the chained crl fetch request list
*/
static void
lock_crl_fetch_list(const char *who)
{
pthread_mutex_lock(&crl_fetch_list_mutex);
DBG(DBG_CONTROLMORE,
DBG_log("crl fetch request list locked by '%s'", who)
)
}
/*
* unlock access to the chained crl fetch request list
*/
static void
unlock_crl_fetch_list(const char *who)
{
DBG(DBG_CONTROLMORE,
DBG_log("crl fetch request list unlocked by '%s'", who)
)
pthread_mutex_unlock(&crl_fetch_list_mutex);
}
/*
* lock access to the chained ocsp fetch request list
*/
static void
lock_ocsp_fetch_list(const char *who)
{
pthread_mutex_lock(&ocsp_fetch_list_mutex);
DBG(DBG_CONTROLMORE,
DBG_log("ocsp fetch request list locked by '%s'", who)
)
}
/*
* unlock access to the chained ocsp fetch request list
*/
static void
unlock_ocsp_fetch_list(const char *who)
{
DBG(DBG_CONTROLMORE,
DBG_log("ocsp fetch request list unlocked by '%s'", who)
)
pthread_mutex_unlock(&ocsp_fetch_list_mutex);
}
/*
* wakes up the sleeping fetch thread
*/
void
wake_fetch_thread(const char *who)
{
if (crl_check_interval > 0)
{
DBG(DBG_CONTROLMORE,
DBG_log("fetch thread wake call by '%s'", who)
)
pthread_mutex_lock(&fetch_wake_mutex);
pthread_cond_signal(&fetch_wake_cond);
pthread_mutex_unlock(&fetch_wake_mutex);
}
}
#else /* !THREADS */
#define lock_crl_fetch_list(who) /* do nothing */
#define unlock_crl_fetch_list(who) /* do nothing */
#define lock_ocsp_fetch_list(who) /* do nothing */
#define unlock_ocsp_fetch_list(who) /* do nothing */
#endif /* !THREADS */
/*
* free the dynamic memory used to store fetch requests
*/
static void
free_fetch_request(fetch_req_t *req)
{
pfree(req->issuer.ptr);
pfreeany(req->authKeySerialNumber.ptr);
pfreeany(req->authKeyID.ptr);
free_generalNames(req->distributionPoints, TRUE);
pfree(req);
}
/* writes data into a dynamically resizeable chunk_t
* needed for libcurl responses
*/
size_t
write_buffer(void *ptr, size_t size, size_t nmemb, void *data)
{
size_t realsize = size * nmemb;
chunk_t *mem = (chunk_t*)data;
mem->ptr = (u_char *)realloc(mem->ptr, mem->len + realsize);
if (mem->ptr) {
memcpy(&(mem->ptr[mem->len]), ptr, realsize);
mem->len += realsize;
}
return realsize;
}
#ifdef THREADS
/*
* fetches a binary blob from a url with libcurl
*/
static err_t
fetch_curl(char *url, chunk_t *blob)
{
#ifdef LIBCURL
char errorbuffer[CURL_ERROR_SIZE] = "";
chunk_t response = empty_chunk;
CURLcode res;
/* get it with libcurl */
CURL *curl = curl_easy_init();
if (curl != NULL)
{
DBG(DBG_CONTROL,
DBG_log("Trying cURL '%s'", url)
)
curl_easy_setopt(curl, CURLOPT_URL, url);
curl_easy_setopt(curl, CURLOPT_WRITEFUNCTION, write_buffer);
curl_easy_setopt(curl, CURLOPT_WRITEDATA, (void *)&response);
curl_easy_setopt(curl, CURLOPT_ERRORBUFFER, errorbuffer);
curl_easy_setopt(curl, CURLOPT_FAILONERROR, TRUE);
curl_easy_setopt(curl, CURLOPT_CONNECTTIMEOUT, FETCH_CMD_TIMEOUT);
res = curl_easy_perform(curl);
if (res == CURLE_OK)
{
blob->len = response.len;
blob->ptr = alloc_bytes(response.len, "curl blob");
memcpy(blob->ptr, response.ptr, response.len);
}
else
{
plog("fetching uri (%s) with libcurl failed: %s", url, errorbuffer);
}
curl_easy_cleanup(curl);
/* not using freeanychunk because of realloc (no leak detective) */
curl_free(response.ptr);
}
return strlen(errorbuffer) > 0 ? "libcurl error" : NULL;
#else /* !LIBCURL */
return "warning: not compiled with libcurl support";
#endif /* !LIBCURL */
}
#ifdef LIBLDAP
/*
* parses the result returned by an ldap query
*/
static err_t
parse_ldap_result(LDAP * ldap, LDAPMessage *result, chunk_t *blob)
{
err_t ugh = NULL;
LDAPMessage * entry = ldap_first_entry(ldap, result);
if (entry != NULL)
{
BerElement *ber = NULL;
char *attr;
attr = ldap_first_attribute(ldap, entry, &ber);
if (attr != NULL)
{
struct berval **values = ldap_get_values_len(ldap, entry, attr);
if (values != NULL)
{
if (values[0] != NULL)
{
blob->len = values[0]->bv_len;
blob->ptr = alloc_bytes(blob->len, "ldap blob");
memcpy(blob->ptr, values[0]->bv_val, blob->len);
if (values[1] != NULL)
{
plog("warning: more than one value was fetched from LDAP URL");
}
}
else
{
ugh = "no values in attribute";
}
ldap_value_free_len(values);
}
else
{
ugh = ldap_err2string(ldap_result2error(ldap, entry, 0));
}
ldap_memfree(attr);
}
else
{
ugh = ldap_err2string(ldap_result2error(ldap, entry, 0));
}
ber_free(ber, 0);
}
else
{
ugh = ldap_err2string(ldap_result2error(ldap, result, 0));
}
return ugh;
}
/*
* fetches a binary blob from an ldap url
*/
static err_t
fetch_ldap_url(char *url, chunk_t *blob)
{
LDAPURLDesc *lurl;
err_t ugh = NULL;
int rc;
DBG(DBG_CONTROL,
DBG_log("Trying LDAP URL '%s'", url)
)
rc = ldap_url_parse(url, &lurl);
if (rc == LDAP_SUCCESS)
{
LDAP *ldap = ldap_init(lurl->lud_host, lurl->lud_port);
if (ldap != NULL)
{
int ldap_version = LDAP_VERSION3;
struct timeval timeout;
timeout.tv_sec = FETCH_CMD_TIMEOUT;
timeout.tv_usec = 0;
ldap_set_option(ldap, LDAP_OPT_PROTOCOL_VERSION, &ldap_version);
ldap_set_option(ldap, LDAP_OPT_NETWORK_TIMEOUT, &timeout);
rc = ldap_simple_bind_s(ldap, NULL, NULL);
if (rc == LDAP_SUCCESS)
{
LDAPMessage *result;
timeout.tv_sec = FETCH_CMD_TIMEOUT;
timeout.tv_usec = 0;
rc = ldap_search_st(ldap, lurl->lud_dn
, lurl->lud_scope
, lurl->lud_filter
, lurl->lud_attrs
, 0, &timeout, &result);
if (rc == LDAP_SUCCESS)
{
ugh = parse_ldap_result(ldap, result, blob);
ldap_msgfree(result);
}
else
{
ugh = ldap_err2string(rc);
}
}
else
{
ugh = ldap_err2string(rc);
}
ldap_unbind_s(ldap);
}
else
{
ugh = "ldap init";
}
ldap_free_urldesc(lurl);
}
else
{
ugh = ldap_err2string(rc);
}
return ugh;
}
#else /* !LIBLDAP */
static err_t
fetch_ldap_url(char *url, chunk_t *blob)
{
return "LDAP URL fetching not activated in pluto source code";
}
#endif /* !LIBLDAP */
/*
* fetch an ASN.1 blob coded in PEM or DER format from a URL
*/
static err_t
fetch_asn1_blob(char *url, chunk_t *blob)
{
err_t ugh = NULL;
if (strlen(url) >= 4 && strncasecmp(url, "ldap", 4) == 0)
{
ugh = fetch_ldap_url(url, blob);
}
else
{
ugh = fetch_curl(url, blob);
}
if (ugh != NULL)
return ugh;
if (is_asn1(*blob))
{
DBG(DBG_PARSING,
DBG_log(" fetched blob coded in DER format")
)
}
else
{
bool pgp = FALSE;
ugh = pemtobin(blob, NULL, "", &pgp);
if (ugh == NULL)
{
if (is_asn1(*blob))
{
DBG(DBG_PARSING,
DBG_log(" fetched blob coded in PEM format")
)
}
else
{
ugh = "blob coded in unknown format";
pfree(blob->ptr);
}
}
else
{
pfree(blob->ptr);
}
}
return ugh;
}
/*
* complete a distributionPoint URI with ca information
*/
static char*
complete_uri(chunk_t distPoint, const char *ldaphost)
{
char *uri;
char *ptr = distPoint.ptr;
size_t len = distPoint.len;
char *symbol = memchr(ptr, ':', len);
if (symbol != NULL)
{
size_t type_len = symbol - ptr;
if (type_len >= 4 && strncasecmp(ptr, "ldap", 4) == 0)
{
ptr = symbol + 1;
len -= (type_len + 1);
if (len > 2 && *ptr++ == '/' && *ptr++ == '/')
{
len -= 2;
symbol = memchr(ptr, '/', len);
if (symbol != NULL && symbol - ptr == 0 && ldaphost != NULL)
{
uri = alloc_bytes(distPoint.len+strlen(ldaphost)+1, "uri");
/* insert the ldaphost into the uri */
sprintf(uri, "%.*s%s%.*s"
, (int)(distPoint.len - len), distPoint.ptr
, ldaphost
, (int)len, symbol);
return uri;
}
}
}
}
/* default action: copy distributionPoint without change */
uri = alloc_bytes(distPoint.len+1, "uri");
sprintf(uri, "%.*s", (int)distPoint.len, distPoint.ptr);
return uri;
}
/*
* try to fetch the crls defined by the fetch requests
*/
static void
fetch_crls(bool cache_crls)
{
fetch_req_t *req;
fetch_req_t **reqp;
lock_crl_fetch_list("fetch_crls");
req = crl_fetch_reqs;
reqp = &crl_fetch_reqs;
while (req != NULL)
{
bool valid_crl = FALSE;
chunk_t blob = empty_chunk;
generalName_t *gn = req->distributionPoints;
const char *ldaphost;
ca_info_t *ca;
lock_ca_info_list("fetch_crls");
ca = get_ca_info(req->issuer, req->authKeySerialNumber, req->authKeyID);
ldaphost = (ca == NULL)? NULL : ca->ldaphost;
while (gn != NULL)
{
char *uri = complete_uri(gn->name, ldaphost);
err_t ugh = fetch_asn1_blob(uri, &blob);
pfree(uri);
if (ugh != NULL)
{
plog("fetch failed: %s", ugh);
}
else
{
chunk_t crl_uri;
clonetochunk(crl_uri, gn->name.ptr, gn->name.len, "crl uri");
if (insert_crl(blob, crl_uri, cache_crls))
{
DBG(DBG_CONTROL,
DBG_log("we have a valid crl")
)
valid_crl = TRUE;
break;
}
}
gn = gn->next;
}
unlock_ca_info_list("fetch_crls");
if (valid_crl)
{
/* delete fetch request */
fetch_req_t *req_free = req;
req = req->next;
*reqp = req;
free_fetch_request(req_free);
}
else
{
/* try again next time */
req->trials++;
reqp = &req->next;
req = req->next;
}
}
unlock_crl_fetch_list("fetch_crls");
}
static void
fetch_ocsp_status(ocsp_location_t* location)
{
#ifdef LIBCURL
chunk_t request;
chunk_t response = empty_chunk;
CURL* curl;
CURLcode res;
request = build_ocsp_request(location);
DBG(DBG_CONTROL,
DBG_log("sending ocsp request to location '%.*s'"
, (int)location->uri.len, location->uri.ptr)
)
DBG(DBG_RAW,
DBG_dump_chunk("OCSP request", request)
)
/* send via http post using libcurl */
curl = curl_easy_init();
if (curl != NULL)
{
char errorbuffer[CURL_ERROR_SIZE];
struct curl_slist *headers = NULL;
char* uri = alloc_bytes(location->uri.len+1, "ocsp uri");
/* we need a null terminated string for curl */
memcpy(uri, location->uri.ptr, location->uri.len);
*(uri + location->uri.len) = '\0';
/* set content type header */
headers = curl_slist_append(headers, "Content-Type: application/ocsp-request");
curl_easy_setopt(curl, CURLOPT_HTTPHEADER, headers);
curl_easy_setopt(curl, CURLOPT_URL, uri);
curl_easy_setopt(curl, CURLOPT_WRITEFUNCTION, write_buffer);
curl_easy_setopt(curl, CURLOPT_WRITEDATA, (void *)&response);
curl_easy_setopt(curl, CURLOPT_POSTFIELDS, (void*)request.ptr);
curl_easy_setopt(curl, CURLOPT_POSTFIELDSIZE, request.len);
curl_easy_setopt(curl, CURLOPT_ERRORBUFFER, errorbuffer);
curl_easy_setopt(curl, CURLOPT_FAILONERROR, TRUE);
curl_easy_setopt(curl, CURLOPT_CONNECTTIMEOUT, FETCH_CMD_TIMEOUT);
res = curl_easy_perform(curl);
if (res == CURLE_OK)
{
DBG(DBG_CONTROL,
DBG_log("received ocsp response")
)
DBG(DBG_RAW,
DBG_dump_chunk("OCSP response:\n", response)
)
parse_ocsp(location, response);
}
else
{
plog("failed to fetch ocsp status from '%s': %s", uri, errorbuffer);
}
curl_slist_free_all(headers);
curl_easy_cleanup(curl);
pfree(uri);
/* not using freeanychunk because of realloc (no leak detective) */
curl_free(response.ptr);
}
freeanychunk(location->nonce);
freeanychunk(request);
/* increment the trial counter of the unresolved fetch requests */
{
ocsp_certinfo_t *certinfo = location->certinfo;
while (certinfo != NULL)
{
certinfo->trials++;
certinfo = certinfo->next;
}
}
return;
#else /* !LIBCURL */
plog("ocsp error: pluto wasn't compiled with libcurl support");
#endif /* !LIBCURL */
}
/*
* try to fetch the necessary ocsp information
*/
static void
fetch_ocsp(void)
{
ocsp_location_t *location;
lock_ocsp_fetch_list("fetch_ocsp");
location = ocsp_fetch_reqs;
/* fetch the ocps status for all locations */
while (location != NULL)
{
if (location->certinfo != NULL)
fetch_ocsp_status(location);
location = location->next;
}
unlock_ocsp_fetch_list("fetch_ocsp");
}
static void*
fetch_thread(void *arg)
{
struct timespec wait_interval;
DBG(DBG_CONTROL,
DBG_log("fetch thread started")
)
pthread_mutex_lock(&fetch_wake_mutex);
while(1)
{
int status;
wait_interval.tv_nsec = 0;
wait_interval.tv_sec = time(NULL) + crl_check_interval;
DBG(DBG_CONTROL,
DBG_log("next regular crl check in %ld seconds", crl_check_interval)
)
status = pthread_cond_timedwait(&fetch_wake_cond, &fetch_wake_mutex
, &wait_interval);
if (status == ETIMEDOUT)
{
DBG(DBG_CONTROL,
DBG_log(" ");
DBG_log("*time to check crls and the ocsp cache")
)
check_ocsp();
check_crls();
}
else
{
DBG(DBG_CONTROL,
DBG_log("fetch thread was woken up")
)
}
fetch_ocsp();
fetch_crls(cache_crls);
}
}
#endif /* THREADS*/
/*
* initializes curl and starts the fetching thread
*/
void
init_fetch(void)
{
#if defined(LIBCURL) || defined (THREADS)
int status;
#endif
#ifdef LIBCURL
/* init curl */
status = curl_global_init(CURL_GLOBAL_NOTHING);
if (status != CURLE_OK)
{
plog("libcurl could not be initialized, status = %d", status);
}
#endif /* LIBCURL */
if (crl_check_interval > 0)
{
#ifdef THREADS
status = pthread_create( &thread, NULL, fetch_thread, NULL);
if (status != 0)
{
plog("fetching thread could not be started, status = %d", status);
}
#else /* !THREADS */
plog("warning: not compiled with pthread support");
#endif /* !THREADS */
}
}
void
free_crl_fetch(void)
{
lock_crl_fetch_list("free_crl_fetch");
while (crl_fetch_reqs != NULL)
{
fetch_req_t *req = crl_fetch_reqs;
crl_fetch_reqs = req->next;
free_fetch_request(req);
}
unlock_crl_fetch_list("free_crl_fetch");
#ifdef LIBCURL
if (crl_check_interval > 0)
{
/* cleanup curl */
curl_global_cleanup();
}
#endif /* LIBCURL */
}
/*
* free the chained list of ocsp requests
*/
void
free_ocsp_fetch(void)
{
lock_ocsp_fetch_list("free_ocsp_fetch");
free_ocsp_locations(&ocsp_fetch_reqs);
unlock_ocsp_fetch_list("free_ocsp_fetch");
}
/*
* add additional distribution points
*/
void
add_distribution_points(const generalName_t *newPoints ,generalName_t **distributionPoints)
{
while (newPoints != NULL)
{
/* skip empty distribution point */
if (newPoints->name.len > 0)
{
bool add = TRUE;
generalName_t *gn = *distributionPoints;
while (gn != NULL)
{
if (gn->kind == newPoints->kind
&& gn->name.len == newPoints->name.len
&& memeq(gn->name.ptr, newPoints->name.ptr, gn->name.len))
{
/* skip if the distribution point is already present */
add = FALSE;
break;
}
gn = gn->next;
}
if (add)
{
/* clone additional distribution point */
gn = clone_thing(*newPoints, "generalName");
clonetochunk(gn->name, newPoints->name.ptr, newPoints->name.len
, "crl uri");
/* insert additional CRL distribution point */
gn->next = *distributionPoints;
*distributionPoints = gn;
}
}
newPoints = newPoints->next;
}
}
fetch_req_t*
build_crl_fetch_request(chunk_t issuer, chunk_t authKeySerialNumber
, chunk_t authKeyID, const generalName_t *gn)
{
fetch_req_t *req = alloc_thing(fetch_req_t, "fetch request");
*req = empty_fetch_req;
/* note current time */
req->installed = time(NULL);
/* clone fields */
clonetochunk(req->issuer, issuer.ptr, issuer.len, "issuer");
if (authKeySerialNumber.ptr != NULL)
{
clonetochunk(req->authKeySerialNumber, authKeySerialNumber.ptr
, authKeySerialNumber.len, "authKeySerialNumber");
}
if (authKeyID.ptr != NULL)
{
clonetochunk(req->authKeyID, authKeyID.ptr, authKeyID.len, "authKeyID");
}
/* copy distribution points */
add_distribution_points(gn, &req->distributionPoints);
return req;
}
/*
* add a crl fetch request to the chained list
*/
void
add_crl_fetch_request(fetch_req_t *req)
{
fetch_req_t *r;
lock_crl_fetch_list("add_crl_fetch_request");
r = crl_fetch_reqs;
while (r != NULL)
{
if ((req->authKeyID.ptr != NULL)? same_keyid(req->authKeyID, r->authKeyID)
: (same_dn(req->issuer, r->issuer)
&& same_serial(req->authKeySerialNumber, r->authKeySerialNumber)))
{
/* there is already a fetch request */
DBG(DBG_CONTROL,
DBG_log("crl fetch request already exists")
)
/* there might be new distribution points */
add_distribution_points(req->distributionPoints, &r->distributionPoints);
unlock_crl_fetch_list("add_crl_fetch_request");
free_fetch_request(req);
return;
}
r = r->next;
}
/* insert new fetch request at the head of the queue */
req->next = crl_fetch_reqs;
crl_fetch_reqs = req;
DBG(DBG_CONTROL,
DBG_log("crl fetch request added")
)
unlock_crl_fetch_list("add_crl_fetch_request");
}
/*
* add an ocsp fetch request to the chained list
*/
void
add_ocsp_fetch_request(ocsp_location_t *location, chunk_t serialNumber)
{
ocsp_certinfo_t certinfo;
certinfo.serialNumber = serialNumber;
lock_ocsp_fetch_list("add_ocsp_fetch_request");
add_certinfo(location, &certinfo, &ocsp_fetch_reqs, TRUE);
unlock_ocsp_fetch_list("add_ocsp_fetch_request");
}
/*
* list all distribution points
*/
void
list_distribution_points(const generalName_t *gn)
{
bool first_gn = TRUE;
while (gn != NULL)
{
whack_log(RC_COMMENT, " %s '%.*s'", (first_gn)? "distPts: "
:" ", (int)gn->name.len, gn->name.ptr);
first_gn = FALSE;
gn = gn->next;
}
}
/*
* list all fetch requests in the chained list
*/
void
list_crl_fetch_requests(bool utc)
{
fetch_req_t *req;
lock_crl_fetch_list("list_crl_fetch_requests");
req = crl_fetch_reqs;
if (req != NULL)
{
whack_log(RC_COMMENT, " ");
whack_log(RC_COMMENT, "List of CRL fetch requests:");
whack_log(RC_COMMENT, " ");
}
while (req != NULL)
{
u_char buf[BUF_LEN];
whack_log(RC_COMMENT, "%s, trials: %d"
, timetoa(&req->installed, utc), req->trials);
dntoa(buf, BUF_LEN, req->issuer);
whack_log(RC_COMMENT, " issuer: '%s'", buf);
if (req->authKeyID.ptr != NULL)
{
datatot(req->authKeyID.ptr, req->authKeyID.len, ':'
, buf, BUF_LEN);
whack_log(RC_COMMENT, " authkey: %s", buf);
}
if (req->authKeySerialNumber.ptr != NULL)
{
datatot(req->authKeySerialNumber.ptr, req->authKeySerialNumber.len, ':'
, buf, BUF_LEN);
whack_log(RC_COMMENT, " aserial: %s", buf);
}
list_distribution_points(req->distributionPoints);
req = req->next;
}
unlock_crl_fetch_list("list_crl_fetch_requests");
}
void
list_ocsp_fetch_requests(bool utc)
{
lock_ocsp_fetch_list("list_ocsp_fetch_requests");
list_ocsp_locations(ocsp_fetch_reqs, TRUE, utc, FALSE);
unlock_ocsp_fetch_list("list_ocsp_fetch_requests");
}
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