-/* $Id$ */
+/*
+ * $Id$
+ *
+ * Provides HTTPS, when the OpenSSL library is available.
+ */
#ifdef HAVE_OPENSSL
-
#include <stdlib.h>
#include <unistd.h>
#include <string.h>
#define CTDL_CER_PATH CTDL_CRYPTO_DIR "/citadel.cer"
#define SIGN_DAYS 365
-
-/* Shared Diffie-Hellman parameters */
-#define DH_P "1A74527AEE4EE2568E85D4FB2E65E18C9394B9C80C42507D7A6A0DBE9A9A54B05A9A96800C34C7AA5297095B69C88901EEFD127F969DCA26A54C0E0B5C5473EBAEB00957D2633ECAE3835775425DE66C0DE6D024DBB17445E06E6B0C78415E589B8814F08531D02FD43778451E7685541079CFFB79EF0D26EFEEBBB69D1E80383"
-#define DH_G "2"
-#define DH_L 1024
-
SSL_CTX *ssl_ctx; /* SSL context */
pthread_mutex_t **SSLCritters; /* Things needing locking */
void init_ssl(void)
{
SSL_METHOD *ssl_method;
- DH *dh;
RSA *rsa=NULL;
X509_REQ *req = NULL;
X509 *cer = NULL;
EVP_PKEY *req_pkey = NULL;
X509_NAME *name = NULL;
FILE *fp;
+ char buf[SIZ];
if (!access("/var/run/egd-pool", F_OK))
RAND_egd("/var/run/egd-pool");
* Initialize SSL transport layer
*/
SSL_library_init();
- OpenSSL_add_all_algorithms();
SSL_load_error_strings();
- ssl_method = SSLv2_server_method();
+ ssl_method = SSLv23_server_method();
if (!(ssl_ctx = SSL_CTX_new(ssl_method))) {
lprintf(3, "SSL_CTX_new failed: %s\n",
ERR_reason_error_string(ERR_get_error()));
CRYPTO_set_locking_callback(ssl_lock);
CRYPTO_set_id_callback(id_callback);
- /* Load DH parameters into the context */
- dh = DH_new();
- if (!dh) {
- lprintf(3, "init_ssl() can't allocate a DH object: %s\n",
- ERR_reason_error_string(ERR_get_error()));
- SSL_CTX_free(ssl_ctx);
- ssl_ctx = NULL;
- return;
- }
- if (!(BN_hex2bn(&(dh->p), DH_P))) {
- lprintf(3, "init_ssl() can't assign DH_P: %s\n",
- ERR_reason_error_string(ERR_get_error()));
- SSL_CTX_free(ssl_ctx);
- ssl_ctx = NULL;
- return;
- }
- if (!(BN_hex2bn(&(dh->g), DH_G))) {
- lprintf(3, "init_ssl() can't assign DH_G: %s\n",
- ERR_reason_error_string(ERR_get_error()));
- SSL_CTX_free(ssl_ctx);
- ssl_ctx = NULL;
- return;
- }
- dh->length = DH_L;
- SSL_CTX_set_tmp_dh(ssl_ctx, dh);
- DH_free(dh);
-
/* Get our certificates in order.
* First, create the key/cert directory if it's not there already...
*/
mkdir(CTDL_CRYPTO_DIR, 0700);
/*
- * Generate a key pair if we don't have one.
+ * Before attempting to generate keys/certificates, first try
+ * link to them from the Citadel server if it's on the same host.
+ * We ignore any error return because it either meant that there
+ * was nothing in Citadel to link from (in which case we just
+ * generate new files) or the target files already exist (which
+ * is not fatal either).
+ */
+ if (!strcasecmp(ctdlhost, "uds")) {
+ sprintf(buf, "%s/keys/citadel.key", ctdlport);
+ symlink(buf, CTDL_KEY_PATH);
+ sprintf(buf, "%s/keys/citadel.csr", ctdlport);
+ symlink(buf, CTDL_CSR_PATH);
+ sprintf(buf, "%s/keys/citadel.cer", ctdlport);
+ symlink(buf, CTDL_CER_PATH);
+ }
+
+ /*
+ * If we still don't have a private key, generate one.
*/
if (access(CTDL_KEY_PATH, R_OK) != 0) {
lprintf(5, "Generating RSA key pair.\n");
}
}
-
/*
* Now try to bind to the key and certificate.
+ * Note that we use SSL_CTX_use_certificate_chain_file() which allows
+ * the certificate file to contain intermediate certificates.
*/
- SSL_CTX_use_certificate_file(ssl_ctx, CTDL_CER_PATH, SSL_FILETYPE_PEM);
+ SSL_CTX_use_certificate_chain_file(ssl_ctx, CTDL_CER_PATH);
SSL_CTX_use_PrivateKey_file(ssl_ctx, CTDL_KEY_PATH, SSL_FILETYPE_PEM);
if ( !SSL_CTX_check_private_key(ssl_ctx) ) {
lprintf(3, "Cannot install certificate: %s\n",
if (retval == -1)
lprintf(9, "errno is %d\n", errno);
endtls();
- client_write(&buf[nbytes - nremain], nremain);
return;
}
nremain -= retval;
}
lprintf(9, "SSL_read got error %ld\n", errval);
endtls();
- return (client_read_to
- (WC->http_sock, &buf[len], bytes - len, timeout));
+ return (0);
}
len += rlen;
}