* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301
* USA
*
- * $Id: commio.c 24808 2008-01-02 08:17:05Z androsyn $
*/
#include <libratbox_config.h>
static SSL_CTX *ssl_server_ctx;
static SSL_CTX *ssl_client_ctx;
+static int libratbox_index = -1;
-static unsigned long get_last_err(void)
+static unsigned long
+get_last_err(void)
{
unsigned long t_err, err = 0;
err = ERR_get_error();
if(err == 0)
return 0;
-
+
while((t_err = ERR_get_error()) > 0)
err = t_err;
}
void
-rb_ssl_shutdown(rb_fde_t * F)
+rb_ssl_shutdown(rb_fde_t *F)
{
int i;
if(F == NULL || F->ssl == NULL)
return;
SSL_set_shutdown((SSL *) F->ssl, SSL_RECEIVED_SHUTDOWN);
- for (i = 0; i < 4; i++)
+ for(i = 0; i < 4; i++)
{
if(SSL_shutdown((SSL *) F->ssl))
break;
SSL_free((SSL *) F->ssl);
}
+unsigned int
+rb_ssl_handshake_count(rb_fde_t *F)
+{
+ return F->handshake_count;
+}
+
+void
+rb_ssl_clear_handshake_count(rb_fde_t *F)
+{
+ F->handshake_count = 0;
+}
+
static void
-rb_ssl_timeout(rb_fde_t * fd, void *notused)
+rb_ssl_timeout(rb_fde_t *F, void *notused)
{
- rb_close(fd);
+ lrb_assert(F->accept != NULL);
+ F->accept->callback(F, RB_ERR_TIMEOUT, NULL, 0, F->accept->data);
}
static void
-rb_ssl_tryaccept(rb_fde_t * F, void *data)
+rb_ssl_info_callback(SSL * ssl, int where, int ret)
+{
+ if(where & SSL_CB_HANDSHAKE_START)
+ {
+ rb_fde_t *F = SSL_get_ex_data(ssl, libratbox_index);
+ if(F == NULL)
+ return;
+ F->handshake_count++;
+ }
+}
+
+static void
+rb_setup_ssl_cb(rb_fde_t *F)
+{
+ SSL_set_ex_data(F->ssl, libratbox_index, (char *)F);
+ SSL_set_info_callback((SSL *) F->ssl, (void (*)(const SSL *,int,int))rb_ssl_info_callback);
+}
+
+static void
+rb_ssl_tryaccept(rb_fde_t *F, void *data)
{
int ssl_err;
lrb_assert(F->accept != NULL);
- int flags = RB_SELECT_READ;
+ int flags;
+ struct acceptdata *ad;
if(!SSL_is_init_finished((SSL *) F->ssl))
{
{
switch (ssl_err = SSL_get_error((SSL *) F->ssl, ssl_err))
{
- case SSL_ERROR_SYSCALL:
- if(rb_ignore_errno(errno))
case SSL_ERROR_WANT_READ:
case SSL_ERROR_WANT_WRITE:
- {
- if(ssl_err == SSL_ERROR_WANT_WRITE)
- flags |= RB_SELECT_WRITE;
- F->ssl_errno = get_last_err();
- rb_setselect(F, flags,
- rb_ssl_tryaccept, NULL);
- return;
- }
+ if(ssl_err == SSL_ERROR_WANT_WRITE)
+ flags = RB_SELECT_WRITE;
+ else
+ flags = RB_SELECT_READ;
+ F->ssl_errno = get_last_err();
+ rb_setselect(F, flags, rb_ssl_tryaccept, NULL);
+ break;
+ case SSL_ERROR_SYSCALL:
+ F->accept->callback(F, RB_ERROR, NULL, 0, F->accept->data);
+ break;
default:
F->ssl_errno = get_last_err();
F->accept->callback(F, RB_ERROR_SSL, NULL, 0, F->accept->data);
}
rb_settimeout(F, 0, NULL, NULL);
rb_setselect(F, RB_SELECT_READ | RB_SELECT_WRITE, NULL, NULL);
-
- F->accept->callback(F, RB_OK, (struct sockaddr *) &F->accept->S, F->accept->addrlen,
- F->accept->data);
- rb_free(F->accept);
+
+ ad = F->accept;
F->accept = NULL;
+ ad->callback(F, RB_OK, (struct sockaddr *)&ad->S, ad->addrlen, ad->data);
+ rb_free(ad);
}
-void
-rb_ssl_start_accepted(rb_fde_t * new_F, ACCB * cb, void *data, int timeout)
+
+static void
+rb_ssl_accept_common(rb_fde_t *new_F)
{
int ssl_err;
-
- new_F->type |= RB_FD_SSL;
- new_F->ssl = SSL_new(ssl_server_ctx);
- new_F->accept = rb_malloc(sizeof(struct acceptdata));
-
- new_F->accept->callback = cb;
- new_F->accept->data = data;
- rb_settimeout(new_F, timeout, rb_ssl_timeout, NULL);
-
- new_F->accept->addrlen = 0;
- SSL_set_fd((SSL *) new_F->ssl, rb_get_fd(new_F));
if((ssl_err = SSL_accept((SSL *) new_F->ssl)) <= 0)
{
switch (ssl_err = SSL_get_error((SSL *) new_F->ssl, ssl_err))
}
}
+void
+rb_ssl_start_accepted(rb_fde_t *new_F, ACCB * cb, void *data, int timeout)
+{
+ new_F->type |= RB_FD_SSL;
+ new_F->ssl = SSL_new(ssl_server_ctx);
+ new_F->accept = rb_malloc(sizeof(struct acceptdata));
+
+ new_F->accept->callback = cb;
+ new_F->accept->data = data;
+ rb_settimeout(new_F, timeout, rb_ssl_timeout, NULL);
+
+ new_F->accept->addrlen = 0;
+ SSL_set_fd((SSL *) new_F->ssl, rb_get_fd(new_F));
+ rb_setup_ssl_cb(new_F);
+ rb_ssl_accept_common(new_F);
+}
+
void
-rb_ssl_accept_setup(rb_fde_t * F, int new_fd, struct sockaddr *st, int addrlen)
+rb_ssl_accept_setup(rb_fde_t *F, rb_fde_t *new_F, struct sockaddr *st, int addrlen)
{
- rb_fde_t *new_F;
- int ssl_err;
-
- new_F = rb_find_fd(new_fd);
new_F->type |= RB_FD_SSL;
new_F->ssl = SSL_new(ssl_server_ctx);
new_F->accept = rb_malloc(sizeof(struct acceptdata));
memcpy(&new_F->accept->S, st, addrlen);
new_F->accept->addrlen = addrlen;
- SSL_set_fd((SSL *) new_F->ssl, new_fd);
- if((ssl_err = SSL_accept((SSL *) new_F->ssl)) <= 0)
- {
- switch (ssl_err = SSL_get_error((SSL *) new_F->ssl, ssl_err))
- {
- case SSL_ERROR_SYSCALL:
- if(rb_ignore_errno(errno))
- case SSL_ERROR_WANT_READ:
- case SSL_ERROR_WANT_WRITE:
- {
- F->ssl_errno = get_last_err();
- rb_setselect(new_F, RB_SELECT_READ | RB_SELECT_WRITE,
- rb_ssl_tryaccept, NULL);
- return;
- }
- default:
- F->ssl_errno = get_last_err();
- F->accept->callback(F, RB_ERROR_SSL, NULL, 0, F->accept->data);
- return;
- }
- }
- else
- {
- rb_ssl_tryaccept(new_F, NULL);
- }
+ SSL_set_fd((SSL *) new_F->ssl, rb_get_fd(new_F));
+ rb_setup_ssl_cb(new_F);
+ rb_ssl_accept_common(new_F);
}
static ssize_t
-rb_ssl_read_or_write(int r_or_w, rb_fde_t * F, void *rbuf, const void *wbuf, size_t count)
+rb_ssl_read_or_write(int r_or_w, rb_fde_t *F, void *rbuf, const void *wbuf, size_t count)
{
ssize_t ret;
unsigned long err;
SSL *ssl = F->ssl;
if(r_or_w == 0)
- ret = (ssize_t)SSL_read(ssl, rbuf, (int) count);
+ ret = (ssize_t) SSL_read(ssl, rbuf, (int)count);
else
- ret = (ssize_t)SSL_write(ssl, wbuf, (int) count);
+ ret = (ssize_t) SSL_write(ssl, wbuf, (int)count);
if(ret < 0)
{
}
ssize_t
-rb_ssl_read(rb_fde_t * F, void *buf, size_t count)
+rb_ssl_read(rb_fde_t *F, void *buf, size_t count)
{
return rb_ssl_read_or_write(0, F, buf, NULL, count);
}
ssize_t
-rb_ssl_write(rb_fde_t * F, const void *buf, size_t count)
+rb_ssl_write(rb_fde_t *F, const void *buf, size_t count)
{
return rb_ssl_read_or_write(1, F, NULL, buf, count);
}
+static int
+verify_accept_all_cb(int preverify_ok, X509_STORE_CTX *x509_ctx)
+{
+ return 1;
+}
+
+static const char *
+get_ssl_error(unsigned long err)
+{
+ static char buf[512];
+
+ ERR_error_string_n(err, buf, sizeof buf);
+ return buf;
+}
+
int
rb_init_ssl(void)
{
int ret = 1;
+ char libratbox_data[] = "libratbox data";
SSL_load_error_strings();
SSL_library_init();
+ libratbox_index = SSL_get_ex_new_index(0, libratbox_data, NULL, NULL, NULL);
ssl_server_ctx = SSL_CTX_new(SSLv23_server_method());
if(ssl_server_ctx == NULL)
{
rb_lib_log("rb_init_openssl: Unable to initialize OpenSSL server context: %s",
- ERR_error_string(ERR_get_error(), NULL));
+ get_ssl_error(ERR_get_error()));
ret = 0;
}
/* Disable SSLv2, make the client use our settings */
SSL_CTX_set_options(ssl_server_ctx, SSL_OP_NO_SSLv2 | SSL_OP_CIPHER_SERVER_PREFERENCE);
-
+ SSL_CTX_set_verify(ssl_server_ctx, SSL_VERIFY_PEER | SSL_VERIFY_CLIENT_ONCE, verify_accept_all_cb);
+
ssl_client_ctx = SSL_CTX_new(TLSv1_client_method());
if(ssl_client_ctx == NULL)
{
rb_lib_log("rb_init_openssl: Unable to initialize OpenSSL client context: %s",
- ERR_error_string(ERR_get_error(), NULL));
+ get_ssl_error(ERR_get_error()));
ret = 0;
}
return ret;
int
rb_setup_ssl_server(const char *cert, const char *keyfile, const char *dhfile)
{
- FILE *param;
DH *dh;
unsigned long err;
if(cert == NULL)
rb_lib_log("rb_setup_ssl_server: No certificate file");
return 0;
}
- if(!SSL_CTX_use_certificate_file(ssl_server_ctx, cert, SSL_FILETYPE_PEM))
+ if(!SSL_CTX_use_certificate_chain_file(ssl_server_ctx, cert))
{
err = ERR_get_error();
rb_lib_log("rb_setup_ssl_server: Error loading certificate file [%s]: %s", cert,
- ERR_error_string(err, NULL));
+ get_ssl_error(err));
return 0;
}
{
err = ERR_get_error();
rb_lib_log("rb_setup_ssl_server: Error loading keyfile [%s]: %s", keyfile,
- ERR_error_string(err, NULL));
+ get_ssl_error(err));
return 0;
}
if(dhfile != NULL)
{
/* DH parameters aren't necessary, but they are nice..if they didn't pass one..that is their problem */
- param = fopen(dhfile, "r");
- if(param != NULL)
+ BIO *bio = BIO_new_file(dhfile, "r");
+ if(bio != NULL)
{
- dh = PEM_read_DHparams(param, NULL, NULL, NULL);
+ dh = PEM_read_bio_DHparams(bio, NULL, NULL, NULL);
if(dh == NULL)
{
err = ERR_get_error();
rb_lib_log
("rb_setup_ssl_server: Error loading DH params file [%s]: %s",
- param, ERR_error_string(err, NULL));
- fclose(param);
+ dhfile, get_ssl_error(err));
+ BIO_free(bio);
return 0;
}
+ BIO_free(bio);
SSL_CTX_set_tmp_dh(ssl_server_ctx, dh);
- fclose(param);
+ }
+ else
+ {
+ err = ERR_get_error();
+ rb_lib_log("rb_setup_ssl_server: Error loading DH params file [%s]: %s",
+ dhfile, get_ssl_error(err));
}
}
return 1;
}
int
-rb_ssl_listen(rb_fde_t * F, int backlog)
+rb_ssl_listen(rb_fde_t *F, int backlog)
{
F->type = RB_FD_SOCKET | RB_FD_LISTEN | RB_FD_SSL;
return listen(F->fd, backlog);
};
static void
-rb_ssl_connect_realcb(rb_fde_t * F, int status, struct ssl_connect *sconn)
+rb_ssl_connect_realcb(rb_fde_t *F, int status, struct ssl_connect *sconn)
{
F->connect->callback = sconn->callback;
F->connect->data = sconn->data;
}
static void
-rb_ssl_tryconn_timeout_cb(rb_fde_t * F, void *data)
+rb_ssl_tryconn_timeout_cb(rb_fde_t *F, void *data)
{
rb_ssl_connect_realcb(F, RB_ERR_TIMEOUT, data);
}
static void
-rb_ssl_tryconn_cb(rb_fde_t * F, void *data)
+rb_ssl_tryconn_cb(rb_fde_t *F, void *data)
{
struct ssl_connect *sconn = data;
int ssl_err;
}
static void
-rb_ssl_tryconn(rb_fde_t * F, int status, void *data)
+rb_ssl_tryconn(rb_fde_t *F, int status, void *data)
{
struct ssl_connect *sconn = data;
int ssl_err;
F->type |= RB_FD_SSL;
F->ssl = SSL_new(ssl_client_ctx);
SSL_set_fd((SSL *) F->ssl, F->fd);
-
+ rb_setup_ssl_cb(F);
rb_settimeout(F, sconn->timeout, rb_ssl_tryconn_timeout_cb, sconn);
if((ssl_err = SSL_connect((SSL *) F->ssl)) <= 0)
{
}
void
-rb_connect_tcp_ssl(rb_fde_t * F, struct sockaddr *dest,
+rb_connect_tcp_ssl(rb_fde_t *F, struct sockaddr *dest,
struct sockaddr *clocal, int socklen, CNCB * callback, void *data, int timeout)
{
struct ssl_connect *sconn;
}
void
-rb_ssl_start_connected(rb_fde_t * F, CNCB * callback, void *data, int timeout)
+rb_ssl_start_connected(rb_fde_t *F, CNCB * callback, void *data, int timeout)
{
struct ssl_connect *sconn;
int ssl_err;
F->connect->data = data;
F->type |= RB_FD_SSL;
F->ssl = SSL_new(ssl_client_ctx);
-
+
SSL_set_fd((SSL *) F->ssl, F->fd);
+ rb_setup_ssl_cb(F);
rb_settimeout(F, sconn->timeout, rb_ssl_tryconn_timeout_cb, sconn);
if((ssl_err = SSL_connect((SSL *) F->ssl)) <= 0)
{
{
if(seed_type == RB_PRNG_DEFAULT)
{
-#ifdef WIN32
+#ifdef _WIN32
RAND_screen();
#endif
return RAND_status();
if(RAND_load_file(path, -1) == -1)
return -1;
break;
-#ifdef WIN32
+#ifdef _WIN32
case RB_PRNGWIN32:
RAND_screen();
break;
int
rb_get_random(void *buf, size_t length)
{
- if(RAND_status())
+ int ret;
+
+ if((ret = RAND_bytes(buf, length)) == 0)
{
- if(RAND_bytes(buf, length) > 0)
- return 1;
+ /* remove the error from the queue */
+ ERR_get_error();
}
- else
- {
- if(RAND_pseudo_bytes(buf, length) >= 0)
- return 1;
- }
- return 0;
+ return ret;
}
+int
+rb_get_pseudo_random(void *buf, size_t length)
+{
+ int ret;
+ ret = RAND_pseudo_bytes(buf, length);
+ if(ret < 0)
+ return 0;
+ return 1;
+}
const char *
-rb_get_ssl_strerror(rb_fde_t * F)
+rb_get_ssl_strerror(rb_fde_t *F)
{
- return ERR_error_string(F->ssl_errno, NULL);
+ return get_ssl_error(F->ssl_errno);
+}
+
+int
+rb_get_ssl_certfp(rb_fde_t *F, uint8_t certfp[RB_SSL_CERTFP_LEN])
+{
+ X509 *cert;
+ int res;
+
+ if (F->ssl == NULL)
+ return 0;
+
+ cert = SSL_get_peer_certificate((SSL *) F->ssl);
+ if(cert != NULL)
+ {
+ res = SSL_get_verify_result((SSL *) F->ssl);
+ if(res == X509_V_OK ||
+ res == X509_V_ERR_SELF_SIGNED_CERT_IN_CHAIN ||
+ res == X509_V_ERR_UNABLE_TO_VERIFY_LEAF_SIGNATURE ||
+ res == X509_V_ERR_DEPTH_ZERO_SELF_SIGNED_CERT)
+ {
+ memcpy(certfp, cert->sha1_hash, RB_SSL_CERTFP_LEN);
+ return 1;
+ }
+ X509_free(cert);
+ }
+
+ return 0;
}
int
return 1;
}
+void
+rb_get_ssl_info(char *buf, size_t len)
+{
+ rb_snprintf(buf, len, "Using SSL: %s compiled: 0x%lx, library 0x%lx",
+ SSLeay_version(SSLEAY_VERSION), OPENSSL_VERSION_NUMBER, SSLeay());
+}
+
+
#endif /* HAVE_OPESSL */
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