/*
- * $Id$
+ * Copyright (c) 1996-2017 by the citadel.org team
+ *
+ * This program is open source software. You can redistribute it and/or
+ * modify it under the terms of the GNU General Public License, version 3.
+ *
+ * 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.
*/
#include "sysdep.h"
SSL_CTX *ssl_ctx; /* SSL context */
pthread_mutex_t **SSLCritters; /* Things needing locking */
+char *ssl_cipher_list = DEFAULT_SSL_CIPHER_LIST;
pthread_key_t ThreadSSL; /* Per-thread SSL context */
+void ssl_lock(int mode, int n, const char *file, int line);
+
static unsigned long id_callback(void)
{
return (unsigned long) pthread_self();
*/
}
+
+void generate_key(char *keyfilename)
+{
+ int ret = 0;
+ RSA *rsa = NULL;
+ BIGNUM *bne = NULL;
+ int bits = 2048;
+ unsigned long e = RSA_F4;
+ FILE *fp;
+
+ if (access(keyfilename, R_OK) == 0) {
+ return;
+ }
+
+ syslog(LOG_INFO, "crypto: generating RSA key pair");
+
+ // generate rsa key
+ bne = BN_new();
+ ret = BN_set_word(bne,e);
+ if (ret != 1) {
+ goto free_all;
+ }
+
+ rsa = RSA_new();
+ ret = RSA_generate_key_ex(rsa, bits, bne, NULL);
+ if (ret != 1) {
+ goto free_all;
+ }
+
+ // write the key file
+ fp = fopen(keyfilename, "w");
+ if (fp != NULL) {
+ chmod(file_crpt_file_key, 0600);
+ if (PEM_write_RSAPrivateKey(fp, /* the file */
+ rsa, /* the key */
+ NULL, /* no enc */
+ NULL, /* no passphr */
+ 0, /* no passphr */
+ NULL, /* no callbk */
+ NULL /* no callbk */
+ ) != 1) {
+ syslog(LOG_ERR, "crypto: cannot write key: %s", ERR_reason_error_string(ERR_get_error()));
+ unlink(keyfilename);
+ }
+ fclose(fp);
+ }
+
+ // 4. free
+free_all:
+ RSA_free(rsa);
+ BN_free(bne);
+}
+
+
/*
* initialize ssl engine, load certs and initialize openssl internals
*/
void init_ssl(void)
{
- SSL_METHOD *ssl_method;
+ const SSL_METHOD *ssl_method;
RSA *rsa=NULL;
X509_REQ *req = NULL;
X509 *cer = NULL;
X509_NAME *name = NULL;
FILE *fp;
char buf[SIZ];
+ int rv = 0;
+#ifndef OPENSSL_NO_EGD
if (!access("/var/run/egd-pool", F_OK)) {
RAND_egd("/var/run/egd-pool");
}
+#endif
if (!RAND_status()) {
- lprintf(3, "PRNG not adequately seeded, won't do SSL/TLS\n");
+ syslog(LOG_WARNING, "PRNG not adequately seeded, won't do SSL/TLS\n");
return;
}
SSLCritters = malloc(CRYPTO_num_locks() * sizeof(pthread_mutex_t *));
if (!SSLCritters) {
- lprintf(1, "citserver: can't allocate memory!!\n");
+ syslog(LOG_ERR, "citserver: can't allocate memory!!\n");
/* Nothing's been initialized, just die */
ShutDownWebcit();
exit(WC_EXIT_SSL);
for (a = 0; a < CRYPTO_num_locks(); a++) {
SSLCritters[a] = malloc(sizeof(pthread_mutex_t));
if (!SSLCritters[a]) {
- lprintf(1,
+ syslog(LOG_ERR,
"citserver: can't allocate memory!!\n");
/** Nothing's been initialized, just die */
ShutDownWebcit();
SSL_load_error_strings();
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()));
+ syslog(LOG_WARNING, "SSL_CTX_new failed: %s\n", ERR_reason_error_string(ERR_get_error()));
+ return;
+ }
+
+ syslog(LOG_INFO, "Requesting cipher list: %s\n", ssl_cipher_list);
+ if (!(SSL_CTX_set_cipher_list(ssl_ctx, ssl_cipher_list))) {
+ syslog(LOG_WARNING, "SSL_CTX_set_cipher_list failed: %s\n", ERR_reason_error_string(ERR_get_error()));
return;
}
*/
if (!strcasecmp(ctdlhost, "uds")) {
sprintf(buf, "%s/keys/citadel.key", ctdlport);
- symlink(buf, CTDL_KEY_PATH);
+ rv = symlink(buf, CTDL_KEY_PATH);
+ if (!rv) syslog(LOG_DEBUG, "%s\n", strerror(errno));
sprintf(buf, "%s/keys/citadel.csr", ctdlport);
- symlink(buf, CTDL_CSR_PATH);
+ rv = symlink(buf, CTDL_CSR_PATH);
+ if (!rv) syslog(LOG_DEBUG, "%s\n", strerror(errno));
sprintf(buf, "%s/keys/citadel.cer", ctdlport);
- symlink(buf, CTDL_CER_PATH);
+ rv = symlink(buf, CTDL_CER_PATH);
+ if (!rv) syslog(LOG_DEBUG, "%s\n", strerror(errno));
}
/*
* 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");
- rsa = RSA_generate_key(1024, /* modulus size */
- 65537, /* exponent */
- NULL, /* no callback */
- NULL /* no callback */
- );
- if (rsa == NULL) {
- lprintf(3, "Key generation failed: %s\n", ERR_reason_error_string(ERR_get_error()));
- }
- if (rsa != NULL) {
- fp = fopen(CTDL_KEY_PATH, "w");
- if (fp != NULL) {
- chmod(CTDL_KEY_PATH, 0600);
- if (PEM_write_RSAPrivateKey(fp, /* the file */
- rsa, /* the key */
- NULL, /* no enc */
- NULL, /* no passphr */
- 0, /* no passphr */
- NULL, /* no callbk */
- NULL /* no callbk */
- ) != 1) {
- lprintf(3, "Cannot write key: %s\n",
- ERR_reason_error_string(ERR_get_error()));
- unlink(CTDL_KEY_PATH);
- }
- fclose(fp);
- }
- else {
- lprintf(3, "Cannot write key: %s\n", CTDL_KEY_PATH);
- ShutDownWebcit();
- exit(0);
- }
- RSA_free(rsa);
- }
- }
+ generate_key(CTDL_KEY_PATH);
/*
* If there is no certificate file on disk, we will be generating a self-signed certificate
* the CSR in this step so that the next step may commence.
*/
if ( (access(CTDL_CER_PATH, R_OK) != 0) && (access(CTDL_CSR_PATH, R_OK) != 0) ) {
- lprintf(5, "Generating a certificate signing request.\n");
+ syslog(LOG_INFO, "Generating a certificate signing request.\n");
/*
* Read our key from the file. No, we don't just keep this
if (pk=EVP_PKEY_new(), pk != NULL) {
EVP_PKEY_assign_RSA(pk, rsa);
if (req = X509_REQ_new(), req != NULL) {
-
+ const char *env;
/* Set the public key */
X509_REQ_set_pubkey(req, pk);
X509_REQ_set_version(req, 0L);
MBSTRING_ASC, "Mount Kisco", -1, -1, 0);
*/
+ env = getenv("O");
+ if (env == NULL)
+ env = "Organization name",
+
X509_NAME_add_entry_by_txt(
name, "O",
MBSTRING_ASC,
- (unsigned char*)"Organization name",
+ (unsigned char*)env,
-1, -1, 0
);
+ env = getenv("OU");
+ if (env == NULL)
+ env = "Citadel server";
+
X509_NAME_add_entry_by_txt(
name, "OU",
MBSTRING_ASC,
- (unsigned char*)"Citadel server1",
+ (unsigned char*)env,
-1, -1, 0
);
+ env = getenv("CN");
+ if (env == NULL)
+ env = "*";
+
X509_NAME_add_entry_by_txt(
name, "CN",
MBSTRING_ASC,
- (unsigned char*)"*", -1, -1, 0
+ (unsigned char*)env,
+ -1, -1, 0
);
X509_REQ_set_subject_name(req, name);
/* Sign the CSR */
if (!X509_REQ_sign(req, pk, EVP_md5())) {
- lprintf(3, "X509_REQ_sign(): error\n");
+ syslog(LOG_WARNING, "X509_REQ_sign(): error\n");
}
else {
/* Write it to disk. */
fclose(fp);
}
else {
- lprintf(3, "Cannot write key: %s\n", CTDL_CSR_PATH);
+ syslog(LOG_WARNING, "Cannot write key: %s\n", CTDL_CSR_PATH);
ShutDownWebcit();
exit(0);
}
}
else {
- lprintf(3, "Unable to read private key.\n");
+ syslog(LOG_WARNING, "Unable to read private key.\n");
}
}
* Generate a self-signed certificate if we don't have one.
*/
if (access(CTDL_CER_PATH, R_OK) != 0) {
- lprintf(5, "Generating a self-signed certificate.\n");
+ syslog(LOG_INFO, "Generating a self-signed certificate.\n");
/* Same deal as before: always read the key from disk because
* it may or may not have just been generated.
if (cer = X509_new(), cer != NULL) {
ASN1_INTEGER_set(X509_get_serialNumber(cer), 0);
- X509_set_issuer_name(cer, req->req_info->subject);
- X509_set_subject_name(cer, req->req_info->subject);
+ X509_set_issuer_name(cer, X509_REQ_get_subject_name(req));
+ X509_set_subject_name(cer, X509_REQ_get_subject_name(req));
X509_gmtime_adj(X509_get_notBefore(cer), 0);
X509_gmtime_adj(X509_get_notAfter(cer),(long)60*60*24*SIGN_DAYS);
/* Sign the cert */
if (!X509_sign(cer, pk, EVP_md5())) {
- lprintf(3, "X509_sign(): error\n");
+ syslog(LOG_WARNING, "X509_sign(): error\n");
}
else {
/* Write it to disk. */
fclose(fp);
}
else {
- lprintf(3, "Cannot write key: %s\n", CTDL_CER_PATH);
+ syslog(LOG_WARNING, "Cannot write key: %s\n", CTDL_CER_PATH);
ShutDownWebcit();
exit(0);
}
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",
- ERR_reason_error_string(ERR_get_error()));
+ syslog(LOG_WARNING, "crypto: cannot install certificate: %s\n", ERR_reason_error_string(ERR_get_error()));
}
-
}
* starts SSL/TLS encryption for the current session.
*/
int starttls(int sock) {
- int retval, bits, alg_bits, r;
+ int retval, bits, alg_bits;/*r; */
SSL *newssl;
pthread_setspecific(ThreadSSL, NULL);
return(1);
}
if (!(newssl = SSL_new(ssl_ctx))) {
- lprintf(3, "SSL_new failed: %s\n", ERR_reason_error_string(ERR_get_error()));
+ syslog(LOG_WARNING, "SSL_new failed: %s\n", ERR_reason_error_string(ERR_get_error()));
return(2);
}
if (!(SSL_set_fd(newssl, sock))) {
- lprintf(3, "SSL_set_fd failed: %s\n", ERR_reason_error_string(ERR_get_error()));
+ syslog(LOG_WARNING, "SSL_set_fd failed: %s\n", ERR_reason_error_string(ERR_get_error()));
SSL_free(newssl);
return(3);
}
errval = SSL_get_error(newssl, retval);
ssl_error_reason = ERR_reason_error_string(ERR_get_error());
if (ssl_error_reason == NULL) {
- lprintf(3, "SSL_accept failed: errval=%i, retval=%i %s\n", errval, retval, strerror(errval));
+ syslog(LOG_WARNING, "SSL_accept failed: errval=%ld, retval=%d %s\n", errval, retval, strerror(errval));
}
else {
- lprintf(3, "SSL_accept failed: %s\n", ssl_error_reason);
+ syslog(LOG_WARNING, "SSL_accept failed: %s\n", ssl_error_reason);
}
sleeeeeeeeeep(1);
retval = SSL_accept(newssl);
errval = SSL_get_error(newssl, retval);
ssl_error_reason = ERR_reason_error_string(ERR_get_error());
if (ssl_error_reason == NULL) {
- lprintf(3, "SSL_accept failed: errval=%i, retval=%i (%s)\n", errval, retval, strerror(errval));
+ syslog(LOG_WARNING, "SSL_accept failed: errval=%ld, retval=%d (%s)\n", errval, retval, strerror(errval));
}
else {
- lprintf(3, "SSL_accept failed: %s\n", ssl_error_reason);
+ syslog(LOG_WARNING, "SSL_accept failed: %s\n", ssl_error_reason);
}
SSL_free(newssl);
newssl = NULL;
return(4);
}
else {
- lprintf(15, "SSL_accept success\n");
+ syslog(LOG_INFO, "SSL_accept success\n");
}
- r = BIO_set_close(newssl->rbio, BIO_NOCLOSE);
+ /*r = */BIO_set_close(SSL_get_rbio(newssl), BIO_NOCLOSE);
bits = SSL_CIPHER_get_bits(SSL_get_current_cipher(newssl), &alg_bits);
- lprintf(15, "SSL/TLS using %s on %s (%d of %d bits)\n",
+ syslog(LOG_INFO, "SSL/TLS using %s on %s (%d of %d bits)\n",
SSL_CIPHER_get_name(SSL_get_current_cipher(newssl)),
SSL_CIPHER_get_version(SSL_get_current_cipher(newssl)),
bits, alg_bits);
pthread_setspecific(ThreadSSL, newssl);
- lprintf(15, "SSL started\n");
+ syslog(LOG_INFO, "SSL started\n");
return(0);
}
*/
void endtls(void)
{
- SSL_CTX *ctx = NULL;
+ /*SSL_CTX *ctx;*/
if (THREADSSL == NULL) return;
- lprintf(15, "Ending SSL/TLS\n");
+ syslog(LOG_INFO, "Ending SSL/TLS\n");
SSL_shutdown(THREADSSL);
- ctx = SSL_get_SSL_CTX(THREADSSL);
+ /*ctx = */SSL_get_SSL_CTX(THREADSSL);
/* I don't think this is needed, and it crashes the server anyway
*
* if (ctx != NULL) {
- * lprintf(9, "Freeing CTX at %x\n", (int)ctx );
+ * syslog(LOG_DEBUG, "Freeing CTX at %x\n", (int)ctx );
* SSL_CTX_free(ctx);
* }
*/
/*
* Send binary data to the client encrypted.
*/
-void client_write_ssl(const StrBuf *Buf)
+int client_write_ssl(const StrBuf *Buf)
{
const char *buf;
int retval;
long nbytes;
char junk[1];
- if (THREADSSL == NULL) return;
+ if (THREADSSL == NULL) return -1;
nbytes = nremain = StrLength(Buf);
buf = ChrPtr(Buf);
while (nremain > 0) {
if (SSL_want_write(THREADSSL)) {
if ((SSL_read(THREADSSL, junk, 0)) < 1) {
- lprintf(9, "SSL_read in client_write: %s\n",
+ syslog(LOG_WARNING, "SSL_read in client_write: %s\n",
ERR_reason_error_string(ERR_get_error()));
}
}
sleeeeeeeeeep(1);
continue;
}
- lprintf(9, "SSL_write got error %ld, ret %d\n", errval, retval);
+ syslog(LOG_WARNING, "SSL_write got error %ld, ret %d\n", errval, retval);
if (retval == -1) {
- lprintf(9, "errno is %d\n", errno);
+ syslog(LOG_WARNING, "errno is %d\n", errno);
}
endtls();
- return;
+ return -1;
}
nremain -= retval;
}
+ return 0;
}
while (1) {
if (SSL_want_read(pssl)) {
if ((SSL_write(pssl, junk, 0)) < 1) {
- lprintf(9, "SSL_write in client_read\n");
+ syslog(LOG_WARNING, "SSL_write in client_read\n");
}
}
rlen = SSL_read(pssl, sbuf, sizeof(sbuf));
sleeeeeeeeeep(1);
continue;
}
- lprintf(9, "SSL_read got error %ld\n", errval);
+ syslog(LOG_WARNING, "SSL_read got error %ld\n", errval);
endtls();
return (-1);
}
projects / citadel.git / blobdiff