#include "asterisk.h"
-ASTERISK_FILE_VERSION(__FILE__, "$Revision$")
+#include "asterisk/tcptls.h" /* for ast_tls_config, ast_tcptls_se... */
+#include "asterisk/iostream.h" /* for DO_SSL, ast_iostream_close, a... */
#ifdef HAVE_FCNTL_H
-#include <fcntl.h>
-#endif
-
-#include <sys/signal.h>
-
-#include "asterisk/compat.h"
-#include "asterisk/tcptls.h"
-#include "asterisk/http.h"
-#include "asterisk/utils.h"
-#include "asterisk/strings.h"
-#include "asterisk/options.h"
-#include "asterisk/manager.h"
-#include "asterisk/astobj2.h"
-
-/*! \brief
- * replacement read/write functions for SSL support.
- * We use wrappers rather than SSL_read/SSL_write directly so
- * we can put in some debugging.
- */
-
+#include <fcntl.h> /* for O_NONBLOCK */
+#endif /* HAVE_FCNTL_H */
+#include <netinet/in.h> /* for IPPROTO_TCP */
#ifdef DO_SSL
-static HOOK_T ssl_read(void *cookie, char *buf, LEN_T len)
-{
- int i = SSL_read(cookie, buf, len-1);
-#if 0
- if (i >= 0)
- buf[i] = '\0';
- ast_verb(0, "ssl read size %d returns %d <%s>\n", (int)len, i, buf);
-#endif
- return i;
-}
+#include <openssl/asn1.h> /* for ASN1_STRING_to_UTF8 */
+#include <openssl/crypto.h> /* for OPENSSL_free */
+#include <openssl/opensslconf.h> /* for OPENSSL_NO_SSL3_METHOD, OPENS... */
+#include <openssl/opensslv.h> /* for OPENSSL_VERSION_NUMBER */
+#include <openssl/safestack.h> /* for STACK_OF */
+#include <openssl/ssl.h> /* for SSL_CTX_free, SSL_get_error, ... */
+#include <openssl/x509.h> /* for X509_free, X509_NAME_ENTRY_ge... */
+#include <openssl/x509v3.h> /* for GENERAL_NAME, sk_GENERAL_NAME... */
+#ifndef OPENSSL_NO_DH
+#include <openssl/bio.h> /* for BIO_free, BIO_new_file */
+#include <openssl/dh.h> /* for DH_free */
+#include <openssl/pem.h> /* for PEM_read_bio_DHparams */
+#endif /* OPENSSL_NO_DH */
+#ifndef OPENSSL_NO_EC
+#include <openssl/ec.h> /* for EC_KEY_free, EC_KEY_new_by_cu... */
+#endif /* OPENSSL_NO_EC */
+#endif /* DO_SSL */
+#include <pthread.h> /* for pthread_cancel, pthread_join */
+#include <signal.h> /* for pthread_kill, SIGURG */
+#include <sys/socket.h> /* for setsockopt, shutdown, socket */
+#include <sys/stat.h> /* for stat */
+
+#include "asterisk/app.h" /* for ast_read_textfile */
+#include "asterisk/astobj2.h" /* for ao2_ref, ao2_t_ref, ao2_alloc */
+#include "asterisk/compat.h" /* for strcasecmp */
+#include "asterisk/config.h" /* for ast_parse_arg, ast_parse_flag... */
+#include "asterisk/io.h" /* for ast_sd_get_fd */
+#include "asterisk/lock.h" /* for AST_PTHREADT_NULL */
+#include "asterisk/logger.h" /* for ast_log, LOG_ERROR, ast_debug */
+#include "asterisk/netsock2.h" /* for ast_sockaddr_copy, ast_sockad... */
+#include "asterisk/pbx.h" /* for ast_thread_inhibit_escalations */
+#include "asterisk/utils.h" /* for ast_true, ast_free, ast_wait_... */
-static HOOK_T ssl_write(void *cookie, const char *buf, LEN_T len)
+static void session_instance_destructor(void *obj)
{
-#if 0
- char *s = alloca(len+1);
- strncpy(s, buf, len);
- s[len] = '\0';
- ast_verb(0, "ssl write size %d <%s>\n", (int)len, s);
-#endif
- return SSL_write(cookie, buf, len);
-}
+ struct ast_tcptls_session_instance *i = obj;
-static int ssl_close(void *cookie)
-{
- close(SSL_get_fd(cookie));
- SSL_shutdown(cookie);
- SSL_free(cookie);
- return 0;
+ if (i->stream) {
+ ast_iostream_close(i->stream);
+ i->stream = NULL;
+ }
+ ast_free(i->overflow_buf);
+ ao2_cleanup(i->private_data);
}
-#endif /* DO_SSL */
-HOOK_T ast_tcptls_server_read(struct ast_tcptls_session_instance *tcptls_session, void *buf, size_t count)
+#ifdef DO_SSL
+static int check_tcptls_cert_name(ASN1_STRING *cert_str, const char *hostname, const char *desc)
{
- if (tcptls_session->fd == -1) {
- ast_log(LOG_ERROR, "server_read called with an fd of -1\n");
- errno = EIO;
+ unsigned char *str;
+ int ret;
+
+ ret = ASN1_STRING_to_UTF8(&str, cert_str);
+ if (ret < 0 || !str) {
return -1;
}
-#ifdef DO_SSL
- if (tcptls_session->ssl)
- return ssl_read(tcptls_session->ssl, buf, count);
-#endif
- return read(tcptls_session->fd, buf, count);
-}
+ if (strlen((char *) str) != ret) {
+ ast_log(LOG_WARNING, "Invalid certificate %s length (contains NULL bytes?)\n", desc);
-HOOK_T ast_tcptls_server_write(struct ast_tcptls_session_instance *tcptls_session, const void *buf, size_t count)
-{
- if (tcptls_session->fd == -1) {
- ast_log(LOG_ERROR, "server_write called with an fd of -1\n");
- errno = EIO;
- return -1;
+ ret = -1;
+ } else if (!strcasecmp(hostname, (char *) str)) {
+ ret = 0;
+ } else {
+ ret = -1;
}
-#ifdef DO_SSL
- if (tcptls_session->ssl)
- return ssl_write(tcptls_session->ssl, buf, count);
-#endif
- return write(tcptls_session->fd, buf, count);
-}
+ ast_debug(3, "SSL %s compare s1='%s' s2='%s'\n", desc, hostname, str);
+ OPENSSL_free(str);
-static void session_instance_destructor(void *obj)
-{
- struct ast_tcptls_session_instance *i = obj;
- ast_mutex_destroy(&i->lock);
+ return ret;
}
+#endif
/*! \brief
* creates a FILE * from the fd passed by the accept thread.
* This operation is potentially expensive (certificate verification),
* so we do it in the child thread context.
+*
+* \note must decrement ref count before returning NULL on error
*/
-static void *handle_tls_connection(void *data)
+static void *handle_tcptls_connection(void *data)
{
struct ast_tcptls_session_instance *tcptls_session = data;
#ifdef DO_SSL
- int (*ssl_setup)(SSL *) = (tcptls_session->client) ? SSL_connect : SSL_accept;
- int ret;
- char err[256];
+ SSL *ssl;
#endif
+ /* TCP/TLS connections are associated with external protocols, and
+ * should not be allowed to execute 'dangerous' functions. This may
+ * need to be pushed down into the individual protocol handlers, but
+ * this seems like a good general policy.
+ */
+ if (ast_thread_inhibit_escalations()) {
+ ast_log(LOG_ERROR, "Failed to inhibit privilege escalations; killing connection\n");
+ ast_tcptls_close_session_file(tcptls_session);
+ ao2_ref(tcptls_session, -1);
+ return NULL;
+ }
+
/*
- * open a FILE * as appropriate.
- */
- if (!tcptls_session->parent->tls_cfg)
- tcptls_session->f = fdopen(tcptls_session->fd, "w+");
+ * TCP/TLS connections are associated with external protocols which can
+ * be considered to be user interfaces (even for SIP messages), and
+ * will not handle channel media. This may need to be pushed down into
+ * the individual protocol handlers, but this seems like a good start.
+ */
+ if (ast_thread_user_interface_set(1)) {
+ ast_log(LOG_ERROR, "Failed to set user interface status; killing connection\n");
+ ast_tcptls_close_session_file(tcptls_session);
+ ao2_ref(tcptls_session, -1);
+ return NULL;
+ }
+
+ if (tcptls_session->parent->tls_cfg) {
#ifdef DO_SSL
- else if ( (tcptls_session->ssl = SSL_new(tcptls_session->parent->tls_cfg->ssl_ctx)) ) {
- SSL_set_fd(tcptls_session->ssl, tcptls_session->fd);
- if ((ret = ssl_setup(tcptls_session->ssl)) <= 0) {
- ast_verb(2, "Problem setting up ssl connection: %s\n", ERR_error_string(ERR_get_error(), err));
- } else {
-#if defined(HAVE_FUNOPEN) /* the BSD interface */
- tcptls_session->f = funopen(tcptls_session->ssl, ssl_read, ssl_write, NULL, ssl_close);
-
-#elif defined(HAVE_FOPENCOOKIE) /* the glibc/linux interface */
- static const cookie_io_functions_t cookie_funcs = {
- ssl_read, ssl_write, NULL, ssl_close
- };
- tcptls_session->f = fopencookie(tcptls_session->ssl, "w+", cookie_funcs);
-#else
- /* could add other methods here */
- ast_debug(2, "no tcptls_session->f methods attempted!");
-#endif
- if ((tcptls_session->client && !ast_test_flag(&tcptls_session->parent->tls_cfg->flags, AST_SSL_DONT_VERIFY_SERVER))
- || (!tcptls_session->client && ast_test_flag(&tcptls_session->parent->tls_cfg->flags, AST_SSL_VERIFY_CLIENT))) {
- X509 *peer;
- long res;
- peer = SSL_get_peer_certificate(tcptls_session->ssl);
- if (!peer)
- ast_log(LOG_WARNING, "No peer SSL certificate\n");
- res = SSL_get_verify_result(tcptls_session->ssl);
- if (res != X509_V_OK)
- ast_log(LOG_ERROR, "Certificate did not verify: %s\n", X509_verify_cert_error_string(res));
- if (!ast_test_flag(&tcptls_session->parent->tls_cfg->flags, AST_SSL_IGNORE_COMMON_NAME)) {
- ASN1_STRING *str;
- unsigned char *str2;
- X509_NAME *name = X509_get_subject_name(peer);
- int pos = -1;
- int found = 0;
-
- for (;;) {
- /* Walk the certificate to check all available "Common Name" */
- /* XXX Probably should do a gethostbyname on the hostname and compare that as well */
- pos = X509_NAME_get_index_by_NID(name, NID_commonName, pos);
- if (pos < 0)
- break;
- str = X509_NAME_ENTRY_get_data(X509_NAME_get_entry(name, pos));
- ASN1_STRING_to_UTF8(&str2, str);
- if (str2) {
- if (!strcasecmp(tcptls_session->parent->hostname, (char *) str2))
+ if (ast_iostream_start_tls(&tcptls_session->stream, tcptls_session->parent->tls_cfg->ssl_ctx, tcptls_session->client) < 0) {
+ ast_tcptls_close_session_file(tcptls_session);
+ ao2_ref(tcptls_session, -1);
+ return NULL;
+ }
+
+ ssl = ast_iostream_get_ssl(tcptls_session->stream);
+ if ((tcptls_session->client && !ast_test_flag(&tcptls_session->parent->tls_cfg->flags, AST_SSL_DONT_VERIFY_SERVER))
+ || (!tcptls_session->client && ast_test_flag(&tcptls_session->parent->tls_cfg->flags, AST_SSL_VERIFY_CLIENT))) {
+ X509 *peer;
+ long res;
+ peer = SSL_get_peer_certificate(ssl);
+ if (!peer) {
+ ast_log(LOG_ERROR, "No peer SSL certificate to verify\n");
+ ast_tcptls_close_session_file(tcptls_session);
+ ao2_ref(tcptls_session, -1);
+ return NULL;
+ }
+
+ res = SSL_get_verify_result(ssl);
+ if (res != X509_V_OK) {
+ ast_log(LOG_ERROR, "Certificate did not verify: %s\n", X509_verify_cert_error_string(res));
+ X509_free(peer);
+ ast_tcptls_close_session_file(tcptls_session);
+ ao2_ref(tcptls_session, -1);
+ return NULL;
+ }
+ if (!ast_test_flag(&tcptls_session->parent->tls_cfg->flags, AST_SSL_IGNORE_COMMON_NAME)) {
+ ASN1_STRING *str;
+ X509_NAME *name = X509_get_subject_name(peer);
+ STACK_OF(GENERAL_NAME) *alt_names;
+ int pos = -1;
+ int found = 0;
+
+ for (;;) {
+ /* Walk the certificate to check all available "Common Name" */
+ /* XXX Probably should do a gethostbyname on the hostname and compare that as well */
+ pos = X509_NAME_get_index_by_NID(name, NID_commonName, pos);
+ if (pos < 0) {
+ break;
+ }
+ str = X509_NAME_ENTRY_get_data(X509_NAME_get_entry(name, pos));
+ if (!check_tcptls_cert_name(str, tcptls_session->parent->hostname, "common name")) {
+ found = 1;
+ break;
+ }
+ }
+
+ if (!found) {
+ alt_names = X509_get_ext_d2i(peer, NID_subject_alt_name, NULL, NULL);
+ if (alt_names != NULL) {
+ int alt_names_count = sk_GENERAL_NAME_num(alt_names);
+
+ for (pos = 0; pos < alt_names_count; pos++) {
+ const GENERAL_NAME *alt_name = sk_GENERAL_NAME_value(alt_names, pos);
+
+ if (alt_name->type != GEN_DNS) {
+ continue;
+ }
+
+ if (!check_tcptls_cert_name(alt_name->d.dNSName, tcptls_session->parent->hostname, "alt name")) {
found = 1;
- ast_debug(3, "SSL Common Name compare s1='%s' s2='%s'\n", tcptls_session->parent->hostname, str2);
- OPENSSL_free(str2);
+ break;
+ }
}
- if (found)
- break;
- }
- if (!found) {
- ast_log(LOG_ERROR, "Certificate common name did not match (%s)\n", tcptls_session->parent->hostname);
- if (peer)
- X509_free(peer);
- fclose(tcptls_session->f);
- return NULL;
+
+ sk_GENERAL_NAME_pop_free(alt_names, GENERAL_NAME_free);
}
}
- if (peer)
+
+ if (!found) {
+ ast_log(LOG_ERROR, "Certificate common name did not match (%s)\n", tcptls_session->parent->hostname);
X509_free(peer);
+ ast_tcptls_close_session_file(tcptls_session);
+ ao2_ref(tcptls_session, -1);
+ return NULL;
+ }
}
+ X509_free(peer);
}
- if (!tcptls_session->f) /* no success opening descriptor stacking */
- SSL_free(tcptls_session->ssl);
- }
-#endif /* DO_SSL */
-
- if (!tcptls_session->f) {
- close(tcptls_session->fd);
- ast_log(LOG_WARNING, "FILE * open failed!\n");
+#else
+ ast_log(LOG_ERROR, "Attempted a TLS connection without OpenSSL support. This will not work!\n");
+ ast_tcptls_close_session_file(tcptls_session);
ao2_ref(tcptls_session, -1);
return NULL;
+#endif /* DO_SSL */
}
- if (tcptls_session && tcptls_session->parent->worker_fn)
+ if (tcptls_session->parent->worker_fn) {
return tcptls_session->parent->worker_fn(tcptls_session);
- else
+ } else {
return tcptls_session;
+ }
}
void *ast_tcptls_server_root(void *data)
{
struct ast_tcptls_session_args *desc = data;
int fd;
- struct sockaddr_in sin;
- socklen_t sinlen;
+ struct ast_sockaddr addr;
struct ast_tcptls_session_instance *tcptls_session;
pthread_t launched;
-
+
for (;;) {
- int i, flags;
+ int i;
- if (desc->periodic_fn)
+ if (desc->periodic_fn) {
desc->periodic_fn(desc);
+ }
i = ast_wait_for_input(desc->accept_fd, desc->poll_timeout);
- if (i <= 0)
+ if (i <= 0) {
+ /* Prevent tight loop from hogging CPU */
+ usleep(1);
continue;
- sinlen = sizeof(sin);
- fd = accept(desc->accept_fd, (struct sockaddr *) &sin, &sinlen);
+ }
+ fd = ast_accept(desc->accept_fd, &addr);
if (fd < 0) {
- if ((errno != EAGAIN) && (errno != EINTR))
- ast_log(LOG_WARNING, "Accept failed: %s\n", strerror(errno));
+ if (errno != EAGAIN
+ && errno != EWOULDBLOCK
+ && errno != EINTR
+ && errno != ECONNABORTED) {
+ ast_log(LOG_ERROR, "TCP/TLS accept failed: %s\n", strerror(errno));
+ if (errno != EMFILE) {
+ break;
+ }
+ }
+ /* Prevent tight loop from hogging CPU */
+ usleep(1);
continue;
}
tcptls_session = ao2_alloc(sizeof(*tcptls_session), session_instance_destructor);
if (!tcptls_session) {
- ast_log(LOG_WARNING, "No memory for new session: %s\n", strerror(errno));
close(fd);
continue;
}
- ast_mutex_init(&tcptls_session->lock);
+ tcptls_session->overflow_buf = ast_str_create(128);
+ if (!tcptls_session->overflow_buf) {
+ ao2_ref(tcptls_session, -1);
+ close(fd);
+ continue;
+ }
+ ast_fd_clear_flags(fd, O_NONBLOCK);
+
+ tcptls_session->stream = ast_iostream_from_fd(&fd);
+ if (!tcptls_session->stream) {
+ ao2_ref(tcptls_session, -1);
+ close(fd);
+ continue;
+ }
- flags = fcntl(fd, F_GETFL);
- fcntl(fd, F_SETFL, flags & ~O_NONBLOCK);
- tcptls_session->fd = fd;
tcptls_session->parent = desc;
- memcpy(&tcptls_session->remote_address, &sin, sizeof(tcptls_session->remote_address));
+ ast_sockaddr_copy(&tcptls_session->remote_address, &addr);
tcptls_session->client = 0;
-
- if (ast_pthread_create_detached_background(&launched, NULL, handle_tls_connection, tcptls_session)) {
- ast_log(LOG_WARNING, "Unable to launch helper thread: %s\n", strerror(errno));
- close(tcptls_session->fd);
+
+ /* This thread is now the only place that controls the single ref to tcptls_session */
+ if (ast_pthread_create_detached_background(&launched, NULL, handle_tcptls_connection, tcptls_session)) {
+ ast_log(LOG_ERROR, "TCP/TLS unable to launch helper thread: %s\n",
+ strerror(errno));
ao2_ref(tcptls_session, -1);
}
}
+
+ ast_log(LOG_ERROR, "TCP/TLS listener thread ended abnormally\n");
+
+ /* Close the listener socket so Asterisk doesn't appear dead. */
+ fd = desc->accept_fd;
+ desc->accept_fd = -1;
+ if (0 <= fd) {
+ close(fd);
+ }
return NULL;
}
+#ifdef DO_SSL
+static void __ssl_setup_certs(struct ast_tls_config *cfg, const size_t cert_file_len, const char *key_type_extension, const char *key_type)
+{
+ char *cert_file = ast_strdupa(cfg->certfile);
+
+ memcpy(cert_file + cert_file_len - 8, key_type_extension, 5);
+ if (access(cert_file, F_OK) == 0) {
+ if (SSL_CTX_use_certificate_chain_file(cfg->ssl_ctx, cert_file) == 0) {
+ ast_log(LOG_WARNING, "TLS/SSL error loading public %s key (certificate) from <%s>.\n", key_type, cert_file);
+ } else if (SSL_CTX_use_PrivateKey_file(cfg->ssl_ctx, cert_file, SSL_FILETYPE_PEM) == 0) {
+ ast_log(LOG_WARNING, "TLS/SSL error loading private %s key from <%s>.\n", key_type, cert_file);
+ } else if (SSL_CTX_check_private_key(cfg->ssl_ctx) == 0) {
+ ast_log(LOG_WARNING, "TLS/SSL error matching private %s key and certificate in <%s>.\n", key_type, cert_file);
+ }
+ }
+}
+#endif
+
static int __ssl_setup(struct ast_tls_config *cfg, int client)
{
#ifndef DO_SSL
- cfg->enabled = 0;
+ if (cfg->enabled) {
+ ast_log(LOG_NOTICE, "Configured without OpenSSL Development Headers");
+ cfg->enabled = 0;
+ }
return 0;
#else
- if (!cfg->enabled)
+ int disable_ssl = 0;
+ long ssl_opts = 0;
+
+ if (!cfg->enabled) {
return 0;
+ }
- SSL_load_error_strings();
- SSLeay_add_ssl_algorithms();
+ /* Get rid of an old SSL_CTX since we're about to
+ * allocate a new one
+ */
+ if (cfg->ssl_ctx) {
+ SSL_CTX_free(cfg->ssl_ctx);
+ cfg->ssl_ctx = NULL;
+ }
- if (!(cfg->ssl_ctx = SSL_CTX_new( client ? SSLv23_client_method() : SSLv23_server_method() ))) {
+ if (client) {
+#if !defined(OPENSSL_NO_SSL2) && (OPENSSL_VERSION_NUMBER < 0x10100000L)
+ if (ast_test_flag(&cfg->flags, AST_SSL_SSLV2_CLIENT)) {
+ ast_log(LOG_WARNING, "Usage of SSLv2 is discouraged due to known vulnerabilities. Please use 'tlsv1' or leave the TLS method unspecified!\n");
+ cfg->ssl_ctx = SSL_CTX_new(SSLv2_client_method());
+ } else
+#endif
+#if !defined(OPENSSL_NO_SSL3_METHOD) && !(defined(OPENSSL_API_COMPAT) && (OPENSSL_API_COMPAT >= 0x10100000L))
+ if (ast_test_flag(&cfg->flags, AST_SSL_SSLV3_CLIENT)) {
+ ast_log(LOG_WARNING, "Usage of SSLv3 is discouraged due to known vulnerabilities. Please use 'tlsv1' or leave the TLS method unspecified!\n");
+ cfg->ssl_ctx = SSL_CTX_new(SSLv3_client_method());
+ } else
+#endif
+#if OPENSSL_VERSION_NUMBER >= 0x10100000L
+ cfg->ssl_ctx = SSL_CTX_new(TLS_client_method());
+#else
+ if (ast_test_flag(&cfg->flags, AST_SSL_TLSV1_CLIENT)) {
+ cfg->ssl_ctx = SSL_CTX_new(TLSv1_client_method());
+ } else {
+ disable_ssl = 1;
+ cfg->ssl_ctx = SSL_CTX_new(SSLv23_client_method());
+ }
+#endif
+ } else {
+ disable_ssl = 1;
+ cfg->ssl_ctx = SSL_CTX_new(SSLv23_server_method());
+ }
+
+ if (!cfg->ssl_ctx) {
ast_debug(1, "Sorry, SSL_CTX_new call returned null...\n");
cfg->enabled = 0;
return 0;
}
+
+ /* Due to the POODLE vulnerability, completely disable
+ * SSLv2 and SSLv3 if we are not explicitly told to use
+ * them. SSLv23_*_method supports TLSv1+.
+ */
+ if (disable_ssl) {
+ ssl_opts |= SSL_OP_NO_SSLv2 | SSL_OP_NO_SSLv3;
+ }
+
+ if (ast_test_flag(&cfg->flags, AST_SSL_SERVER_CIPHER_ORDER)) {
+ ssl_opts |= SSL_OP_CIPHER_SERVER_PREFERENCE;
+ }
+
+ if (ast_test_flag(&cfg->flags, AST_SSL_DISABLE_TLSV1)) {
+ ssl_opts |= SSL_OP_NO_TLSv1;
+ }
+#if defined(SSL_OP_NO_TLSv1_1) && defined(SSL_OP_NO_TLSv1_2)
+ if (ast_test_flag(&cfg->flags, AST_SSL_DISABLE_TLSV11)) {
+ ssl_opts |= SSL_OP_NO_TLSv1_1;
+ }
+ if (ast_test_flag(&cfg->flags, AST_SSL_DISABLE_TLSV12)) {
+ ssl_opts |= SSL_OP_NO_TLSv1_2;
+ }
+#else
+ ast_log(LOG_WARNING, "Your version of OpenSSL leaves you potentially vulnerable "
+ "to the SSL BEAST attack. Please upgrade to OpenSSL 1.0.1 or later\n");
+#endif
+
+ SSL_CTX_set_options(cfg->ssl_ctx, ssl_opts);
+
+ SSL_CTX_set_verify(cfg->ssl_ctx,
+ ast_test_flag(&cfg->flags, AST_SSL_VERIFY_CLIENT) ? SSL_VERIFY_PEER | SSL_VERIFY_FAIL_IF_NO_PEER_CERT : SSL_VERIFY_NONE,
+ NULL);
+
if (!ast_strlen_zero(cfg->certfile)) {
- if (SSL_CTX_use_certificate_file(cfg->ssl_ctx, cfg->certfile, SSL_FILETYPE_PEM) == 0 ||
- SSL_CTX_use_PrivateKey_file(cfg->ssl_ctx, cfg->certfile, SSL_FILETYPE_PEM) == 0 ||
- SSL_CTX_check_private_key(cfg->ssl_ctx) == 0 ) {
+ char *tmpprivate = ast_strlen_zero(cfg->pvtfile) ? cfg->certfile : cfg->pvtfile;
+ if (SSL_CTX_use_certificate_chain_file(cfg->ssl_ctx, cfg->certfile) == 0) {
if (!client) {
/* Clients don't need a certificate, but if its setup we can use it */
- ast_verb(0, "SSL cert error <%s>", cfg->certfile);
- sleep(2);
+ ast_log(LOG_ERROR, "TLS/SSL error loading cert file. <%s>\n", cfg->certfile);
+ cfg->enabled = 0;
+ SSL_CTX_free(cfg->ssl_ctx);
+ cfg->ssl_ctx = NULL;
+ return 0;
+ }
+ }
+ if ((SSL_CTX_use_PrivateKey_file(cfg->ssl_ctx, tmpprivate, SSL_FILETYPE_PEM) == 0) || (SSL_CTX_check_private_key(cfg->ssl_ctx) == 0 )) {
+ if (!client) {
+ /* Clients don't need a private key, but if its setup we can use it */
+ ast_log(LOG_ERROR, "TLS/SSL error loading private key file. <%s>\n", tmpprivate);
cfg->enabled = 0;
+ SSL_CTX_free(cfg->ssl_ctx);
+ cfg->ssl_ctx = NULL;
return 0;
}
}
+ if (!client) {
+ size_t certfile_len = strlen(cfg->certfile);
+
+ /* expects a file name which contains _rsa. like asterisk_rsa.pem
+ * ignores any 3-character file-extension like .pem, .cer, .crt
+ */
+ if (certfile_len >= 8 && !strncmp(cfg->certfile + certfile_len - 8, "_rsa.", 5)) {
+ __ssl_setup_certs(cfg, certfile_len, "_ecc.", "ECC");
+ __ssl_setup_certs(cfg, certfile_len, "_dsa.", "DSA");
+ }
+ }
}
if (!ast_strlen_zero(cfg->cipher)) {
if (SSL_CTX_set_cipher_list(cfg->ssl_ctx, cfg->cipher) == 0 ) {
if (!client) {
- ast_verb(0, "SSL cipher error <%s>", cfg->cipher);
- sleep(2);
+ ast_log(LOG_ERROR, "TLS/SSL cipher error <%s>\n", cfg->cipher);
cfg->enabled = 0;
+ SSL_CTX_free(cfg->ssl_ctx);
+ cfg->ssl_ctx = NULL;
return 0;
}
}
}
if (!ast_strlen_zero(cfg->cafile) || !ast_strlen_zero(cfg->capath)) {
- if (SSL_CTX_load_verify_locations(cfg->ssl_ctx, S_OR(cfg->cafile, NULL), S_OR(cfg->capath,NULL)) == 0)
- ast_verb(0, "SSL CA file(%s)/path(%s) error\n", cfg->cafile, cfg->capath);
+ if (SSL_CTX_load_verify_locations(cfg->ssl_ctx, S_OR(cfg->cafile, NULL), S_OR(cfg->capath,NULL)) == 0) {
+ ast_log(LOG_ERROR, "TLS/SSL CA file(%s)/path(%s) error\n", cfg->cafile, cfg->capath);
+ }
+ }
+
+#ifndef OPENSSL_NO_DH
+ if (!ast_strlen_zero(cfg->pvtfile)) {
+ BIO *bio = BIO_new_file(cfg->pvtfile, "r");
+ if (bio != NULL) {
+ DH *dh = PEM_read_bio_DHparams(bio, NULL, NULL, NULL);
+ if (dh != NULL) {
+ if (SSL_CTX_set_tmp_dh(cfg->ssl_ctx, dh)) {
+ long options = SSL_OP_CIPHER_SERVER_PREFERENCE | SSL_OP_SINGLE_DH_USE | SSL_OP_SINGLE_ECDH_USE;
+ options = SSL_CTX_set_options(cfg->ssl_ctx, options);
+ ast_verb(2, "TLS/SSL DH initialized, PFS cipher-suites enabled\n");
+ }
+ DH_free(dh);
+ }
+ BIO_free(bio);
+ }
+ }
+#endif
+
+ #ifndef SSL_CTRL_SET_ECDH_AUTO
+ #define SSL_CTRL_SET_ECDH_AUTO 94
+ #endif
+ /* SSL_CTX_set_ecdh_auto(cfg->ssl_ctx, on); requires OpenSSL 1.0.2 which wraps: */
+ if (SSL_CTX_ctrl(cfg->ssl_ctx, SSL_CTRL_SET_ECDH_AUTO, 1, NULL)) {
+ ast_verb(2, "TLS/SSL ECDH initialized (automatic), faster PFS ciphers enabled\n");
+#if !defined(OPENSSL_NO_ECDH) && (OPENSSL_VERSION_NUMBER >= 0x10000000L) && (OPENSSL_VERSION_NUMBER < 0x10100000L)
+ } else {
+ /* enables AES-128 ciphers, to get AES-256 use NID_secp384r1 */
+ EC_KEY *ecdh = EC_KEY_new_by_curve_name(NID_X9_62_prime256v1);
+ if (ecdh != NULL) {
+ if (SSL_CTX_set_tmp_ecdh(cfg->ssl_ctx, ecdh)) {
+ ast_verb(2, "TLS/SSL ECDH initialized (secp256r1), faster PFS cipher-suites enabled\n");
+ }
+ EC_KEY_free(ecdh);
+ }
+#endif
}
- ast_verb(0, "SSL certificate ok\n");
+ ast_verb(2, "TLS/SSL certificate ok\n"); /* We should log which one that is ok. This message doesn't really make sense in production use */
return 1;
#endif
}
return __ssl_setup(cfg, 0);
}
-/*! \brief A generic client routine for a TCP client
- * and starts a thread for handling accept()
- */
-struct ast_tcptls_session_instance *ast_tcptls_client_start(struct ast_tcptls_session_args *desc)
+void ast_ssl_teardown(struct ast_tls_config *cfg)
{
- int flags;
- int x = 1;
+#ifdef DO_SSL
+ if (cfg && cfg->ssl_ctx) {
+ SSL_CTX_free(cfg->ssl_ctx);
+ cfg->ssl_ctx = NULL;
+ }
+#endif
+}
+
+struct ast_tcptls_session_instance *ast_tcptls_client_start(struct ast_tcptls_session_instance *tcptls_session)
+{
+ struct ast_tcptls_session_args *desc;
+
+ if (!(desc = tcptls_session->parent)) {
+ goto client_start_error;
+ }
+
+ if (ast_connect(desc->accept_fd, &desc->remote_address)) {
+ ast_log(LOG_ERROR, "Unable to connect %s to %s: %s\n",
+ desc->name,
+ ast_sockaddr_stringify(&desc->remote_address),
+ strerror(errno));
+ goto client_start_error;
+ }
+
+ ast_fd_clear_flags(desc->accept_fd, O_NONBLOCK);
+
+ if (desc->tls_cfg) {
+ desc->tls_cfg->enabled = 1;
+ __ssl_setup(desc->tls_cfg, 1);
+ }
+
+ return handle_tcptls_connection(tcptls_session);
+
+client_start_error:
+ if (desc) {
+ close(desc->accept_fd);
+ desc->accept_fd = -1;
+ }
+ ao2_ref(tcptls_session, -1);
+ return NULL;
+
+}
+
+struct ast_tcptls_session_instance *ast_tcptls_client_create(struct ast_tcptls_session_args *desc)
+{
+ int fd, x = 1;
struct ast_tcptls_session_instance *tcptls_session = NULL;
/* Do nothing if nothing has changed */
- if (!memcmp(&desc->old_address, &desc->remote_address, sizeof(desc->old_address))) {
+ if (!ast_sockaddr_cmp(&desc->old_address, &desc->remote_address)) {
ast_debug(1, "Nothing changed in %s\n", desc->name);
return NULL;
}
- desc->old_address = desc->remote_address;
+ /* If we return early, there is no connection */
+ ast_sockaddr_setnull(&desc->old_address);
- if (desc->accept_fd != -1)
+ if (desc->accept_fd != -1) {
close(desc->accept_fd);
+ }
- desc->accept_fd = socket(AF_INET, SOCK_STREAM, IPPROTO_TCP);
+ fd = desc->accept_fd = socket(ast_sockaddr_is_ipv6(&desc->remote_address) ?
+ AF_INET6 : AF_INET, SOCK_STREAM, IPPROTO_TCP);
if (desc->accept_fd < 0) {
- ast_log(LOG_WARNING, "Unable to allocate socket for %s: %s\n",
+ ast_log(LOG_ERROR, "Unable to allocate socket for %s: %s\n",
desc->name, strerror(errno));
return NULL;
}
/* if a local address was specified, bind to it so the connection will
originate from the desired address */
- if (desc->local_address.sin_family != 0) {
+ if (!ast_sockaddr_isnull(&desc->local_address) &&
+ !ast_sockaddr_is_any(&desc->local_address)) {
setsockopt(desc->accept_fd, SOL_SOCKET, SO_REUSEADDR, &x, sizeof(x));
- if (bind(desc->accept_fd, (struct sockaddr *) &desc->local_address, sizeof(desc->local_address))) {
- ast_log(LOG_ERROR, "Unable to bind %s to %s:%d: %s\n",
- desc->name,
- ast_inet_ntoa(desc->local_address.sin_addr), ntohs(desc->local_address.sin_port),
+ if (ast_bind(desc->accept_fd, &desc->local_address)) {
+ ast_log(LOG_ERROR, "Unable to bind %s to %s: %s\n",
+ desc->name,
+ ast_sockaddr_stringify(&desc->local_address),
strerror(errno));
goto error;
}
}
- if (connect(desc->accept_fd, (const struct sockaddr *) &desc->remote_address, sizeof(desc->remote_address))) {
- ast_log(LOG_ERROR, "Unable to connect %s to %s:%d: %s\n",
- desc->name,
- ast_inet_ntoa(desc->remote_address.sin_addr), ntohs(desc->remote_address.sin_port),
- strerror(errno));
+ tcptls_session = ao2_alloc(sizeof(*tcptls_session), session_instance_destructor);
+ if (!tcptls_session) {
goto error;
}
- if (!(tcptls_session = ao2_alloc(sizeof(*tcptls_session), session_instance_destructor)))
+ tcptls_session->overflow_buf = ast_str_create(128);
+ if (!tcptls_session->overflow_buf) {
goto error;
-
- ast_mutex_init(&tcptls_session->lock);
-
- flags = fcntl(desc->accept_fd, F_GETFL);
- fcntl(desc->accept_fd, F_SETFL, flags & ~O_NONBLOCK);
-
- tcptls_session->fd = desc->accept_fd;
- tcptls_session->parent = desc;
- tcptls_session->parent->worker_fn = NULL;
- memcpy(&tcptls_session->remote_address, &desc->remote_address, sizeof(tcptls_session->remote_address));
-
+ }
tcptls_session->client = 1;
-
- if (desc->tls_cfg) {
- desc->tls_cfg->enabled = 1;
- __ssl_setup(desc->tls_cfg, 1);
+ tcptls_session->stream = ast_iostream_from_fd(&fd);
+ if (!tcptls_session->stream) {
+ goto error;
}
- ao2_ref(tcptls_session, +1);
- if (!handle_tls_connection(tcptls_session))
- goto error;
+ tcptls_session->parent = desc;
+ tcptls_session->parent->worker_fn = NULL;
+ ast_sockaddr_copy(&tcptls_session->remote_address,
+ &desc->remote_address);
+ /* Set current info */
+ ast_sockaddr_copy(&desc->old_address, &desc->remote_address);
return tcptls_session;
error:
close(desc->accept_fd);
desc->accept_fd = -1;
- if (tcptls_session)
- ao2_ref(tcptls_session, -1);
+ ao2_cleanup(tcptls_session);
return NULL;
}
-/*! \brief
- * This is a generic (re)start routine for a TCP server,
- * which does the socket/bind/listen and starts a thread for handling
- * accept().
- */
void ast_tcptls_server_start(struct ast_tcptls_session_args *desc)
{
- int flags;
int x = 1;
-
+ int tls_changed = 0;
+ int sd_socket;
+
+ if (desc->tls_cfg) {
+ char hash[41];
+ char *str = NULL;
+ struct stat st;
+
+ /* Store the hashes of the TLS certificate etc. */
+ if (stat(desc->tls_cfg->certfile, &st) || NULL == (str = ast_read_textfile(desc->tls_cfg->certfile))) {
+ memset(hash, 0, 41);
+ } else {
+ ast_sha1_hash(hash, str);
+ }
+ ast_free(str);
+ str = NULL;
+ memcpy(desc->tls_cfg->certhash, hash, 41);
+ if (stat(desc->tls_cfg->pvtfile, &st) || NULL == (str = ast_read_textfile(desc->tls_cfg->pvtfile))) {
+ memset(hash, 0, 41);
+ } else {
+ ast_sha1_hash(hash, str);
+ }
+ ast_free(str);
+ str = NULL;
+ memcpy(desc->tls_cfg->pvthash, hash, 41);
+ if (stat(desc->tls_cfg->cafile, &st) || NULL == (str = ast_read_textfile(desc->tls_cfg->cafile))) {
+ memset(hash, 0, 41);
+ } else {
+ ast_sha1_hash(hash, str);
+ }
+ ast_free(str);
+ str = NULL;
+ memcpy(desc->tls_cfg->cahash, hash, 41);
+
+ /* Check whether TLS configuration has changed */
+ if (!desc->old_tls_cfg) { /* No previous configuration */
+ tls_changed = 1;
+ desc->old_tls_cfg = ast_calloc(1, sizeof(*desc->old_tls_cfg));
+ } else if (memcmp(desc->tls_cfg->certhash, desc->old_tls_cfg->certhash, 41)) {
+ tls_changed = 1;
+ } else if (memcmp(desc->tls_cfg->pvthash, desc->old_tls_cfg->pvthash, 41)) {
+ tls_changed = 1;
+ } else if (strcmp(desc->tls_cfg->cipher, desc->old_tls_cfg->cipher)) {
+ tls_changed = 1;
+ } else if (memcmp(desc->tls_cfg->cahash, desc->old_tls_cfg->cahash, 41)) {
+ tls_changed = 1;
+ } else if (strcmp(desc->tls_cfg->capath, desc->old_tls_cfg->capath)) {
+ tls_changed = 1;
+ } else if (memcmp(&desc->tls_cfg->flags, &desc->old_tls_cfg->flags, sizeof(desc->tls_cfg->flags))) {
+ tls_changed = 1;
+ }
+
+ if (tls_changed) {
+ ast_debug(1, "Changed parameters for %s found\n", desc->name);
+ }
+ }
+
/* Do nothing if nothing has changed */
- if (!memcmp(&desc->old_address, &desc->local_address, sizeof(desc->old_address))) {
+ if (!tls_changed && !ast_sockaddr_cmp(&desc->old_address, &desc->local_address)) {
ast_debug(1, "Nothing changed in %s\n", desc->name);
return;
}
-
- desc->old_address = desc->local_address;
-
+
+ /* If we return early, there is no one listening */
+ ast_sockaddr_setnull(&desc->old_address);
+
/* Shutdown a running server if there is one */
if (desc->master != AST_PTHREADT_NULL) {
pthread_cancel(desc->master);
pthread_kill(desc->master, SIGURG);
pthread_join(desc->master, NULL);
}
-
- if (desc->accept_fd != -1)
+
+ sd_socket = ast_sd_get_fd(SOCK_STREAM, &desc->local_address);
+
+ if (sd_socket != -1) {
+ if (desc->accept_fd != sd_socket) {
+ if (desc->accept_fd != -1) {
+ close(desc->accept_fd);
+ }
+ desc->accept_fd = sd_socket;
+ }
+
+ goto systemd_socket_activation;
+ }
+
+ if (desc->accept_fd != -1) {
close(desc->accept_fd);
+ }
/* If there's no new server, stop here */
- if (desc->local_address.sin_family == 0) {
+ if (ast_sockaddr_isnull(&desc->local_address)) {
ast_debug(2, "Server disabled: %s\n", desc->name);
return;
}
- desc->accept_fd = socket(AF_INET, SOCK_STREAM, 0);
+ desc->accept_fd = socket(ast_sockaddr_is_ipv6(&desc->local_address) ?
+ AF_INET6 : AF_INET, SOCK_STREAM, 0);
if (desc->accept_fd < 0) {
ast_log(LOG_ERROR, "Unable to allocate socket for %s: %s\n", desc->name, strerror(errno));
return;
}
-
+
setsockopt(desc->accept_fd, SOL_SOCKET, SO_REUSEADDR, &x, sizeof(x));
- if (bind(desc->accept_fd, (struct sockaddr *) &desc->local_address, sizeof(desc->local_address))) {
- ast_log(LOG_ERROR, "Unable to bind %s to %s:%d: %s\n",
+ if (ast_bind(desc->accept_fd, &desc->local_address)) {
+ ast_log(LOG_ERROR, "Unable to bind %s to %s: %s\n",
desc->name,
- ast_inet_ntoa(desc->local_address.sin_addr), ntohs(desc->local_address.sin_port),
+ ast_sockaddr_stringify(&desc->local_address),
strerror(errno));
goto error;
}
ast_log(LOG_ERROR, "Unable to listen for %s!\n", desc->name);
goto error;
}
- flags = fcntl(desc->accept_fd, F_GETFL);
- fcntl(desc->accept_fd, F_SETFL, flags | O_NONBLOCK);
+
+systemd_socket_activation:
+ ast_fd_set_flags(desc->accept_fd, O_NONBLOCK);
if (ast_pthread_create_background(&desc->master, NULL, desc->accept_fn, desc)) {
- ast_log(LOG_ERROR, "Unable to launch thread for %s on %s:%d: %s\n",
+ ast_log(LOG_ERROR, "Unable to launch thread for %s on %s: %s\n",
desc->name,
- ast_inet_ntoa(desc->local_address.sin_addr), ntohs(desc->local_address.sin_port),
+ ast_sockaddr_stringify(&desc->local_address),
strerror(errno));
goto error;
}
+
+ /* Set current info */
+ ast_sockaddr_copy(&desc->old_address, &desc->local_address);
+ if (desc->old_tls_cfg) {
+ ast_free(desc->old_tls_cfg->certfile);
+ ast_free(desc->old_tls_cfg->pvtfile);
+ ast_free(desc->old_tls_cfg->cipher);
+ ast_free(desc->old_tls_cfg->cafile);
+ ast_free(desc->old_tls_cfg->capath);
+ desc->old_tls_cfg->certfile = ast_strdup(desc->tls_cfg->certfile);
+ desc->old_tls_cfg->pvtfile = ast_strdup(desc->tls_cfg->pvtfile);
+ desc->old_tls_cfg->cipher = ast_strdup(desc->tls_cfg->cipher);
+ desc->old_tls_cfg->cafile = ast_strdup(desc->tls_cfg->cafile);
+ desc->old_tls_cfg->capath = ast_strdup(desc->tls_cfg->capath);
+ memcpy(desc->old_tls_cfg->certhash, desc->tls_cfg->certhash, 41);
+ memcpy(desc->old_tls_cfg->pvthash, desc->tls_cfg->pvthash, 41);
+ memcpy(desc->old_tls_cfg->cahash, desc->tls_cfg->cahash, 41);
+ memcpy(&desc->old_tls_cfg->flags, &desc->tls_cfg->flags, sizeof(desc->old_tls_cfg->flags));
+ }
+
return;
error:
desc->accept_fd = -1;
}
-/*! \brief Shutdown a running server if there is one */
+void ast_tcptls_close_session_file(struct ast_tcptls_session_instance *tcptls_session)
+{
+ if (tcptls_session->stream) {
+ ast_iostream_close(tcptls_session->stream);
+ tcptls_session->stream = NULL;
+ } else {
+ ast_debug(1, "ast_tcptls_close_session_file invoked on session instance without file or file descriptor\n");
+ }
+}
+
void ast_tcptls_server_stop(struct ast_tcptls_session_args *desc)
{
if (desc->master != AST_PTHREADT_NULL) {
pthread_cancel(desc->master);
pthread_kill(desc->master, SIGURG);
pthread_join(desc->master, NULL);
+ desc->master = AST_PTHREADT_NULL;
}
- if (desc->accept_fd != -1)
+ if (desc->accept_fd != -1) {
close(desc->accept_fd);
+ }
desc->accept_fd = -1;
+
+ if (desc->old_tls_cfg) {
+ ast_free(desc->old_tls_cfg->certfile);
+ ast_free(desc->old_tls_cfg->pvtfile);
+ ast_free(desc->old_tls_cfg->cipher);
+ ast_free(desc->old_tls_cfg->cafile);
+ ast_free(desc->old_tls_cfg->capath);
+ ast_free(desc->old_tls_cfg);
+ desc->old_tls_cfg = NULL;
+ }
+
ast_debug(2, "Stopped server :: %s\n", desc->name);
}
+
+int ast_tls_read_conf(struct ast_tls_config *tls_cfg, struct ast_tcptls_session_args *tls_desc, const char *varname, const char *value)
+{
+ if (!strcasecmp(varname, "tlsenable") || !strcasecmp(varname, "sslenable")) {
+ tls_cfg->enabled = ast_true(value) ? 1 : 0;
+ } else if (!strcasecmp(varname, "tlscertfile") || !strcasecmp(varname, "sslcert") || !strcasecmp(varname, "tlscert")) {
+ ast_free(tls_cfg->certfile);
+ tls_cfg->certfile = ast_strdup(value);
+ } else if (!strcasecmp(varname, "tlsprivatekey") || !strcasecmp(varname, "sslprivatekey")) {
+ ast_free(tls_cfg->pvtfile);
+ tls_cfg->pvtfile = ast_strdup(value);
+ } else if (!strcasecmp(varname, "tlscipher") || !strcasecmp(varname, "sslcipher")) {
+ ast_free(tls_cfg->cipher);
+ tls_cfg->cipher = ast_strdup(value);
+ } else if (!strcasecmp(varname, "tlscafile")) {
+ ast_free(tls_cfg->cafile);
+ tls_cfg->cafile = ast_strdup(value);
+ } else if (!strcasecmp(varname, "tlscapath") || !strcasecmp(varname, "tlscadir")) {
+ ast_free(tls_cfg->capath);
+ tls_cfg->capath = ast_strdup(value);
+ } else if (!strcasecmp(varname, "tlsverifyclient")) {
+ ast_set2_flag(&tls_cfg->flags, ast_true(value), AST_SSL_VERIFY_CLIENT);
+ } else if (!strcasecmp(varname, "tlsdontverifyserver")) {
+ ast_set2_flag(&tls_cfg->flags, ast_true(value), AST_SSL_DONT_VERIFY_SERVER);
+ } else if (!strcasecmp(varname, "tlsbindaddr") || !strcasecmp(varname, "sslbindaddr")) {
+ if (ast_parse_arg(value, PARSE_ADDR, &tls_desc->local_address))
+ ast_log(LOG_ERROR, "Invalid %s '%s'\n", varname, value);
+ } else if (!strcasecmp(varname, "tlsclientmethod") || !strcasecmp(varname, "sslclientmethod")) {
+ if (!strcasecmp(value, "tlsv1")) {
+ ast_set_flag(&tls_cfg->flags, AST_SSL_TLSV1_CLIENT);
+ ast_clear_flag(&tls_cfg->flags, AST_SSL_SSLV3_CLIENT);
+ ast_clear_flag(&tls_cfg->flags, AST_SSL_SSLV2_CLIENT);
+ } else if (!strcasecmp(value, "sslv3")) {
+ ast_set_flag(&tls_cfg->flags, AST_SSL_SSLV3_CLIENT);
+ ast_clear_flag(&tls_cfg->flags, AST_SSL_SSLV2_CLIENT);
+ ast_clear_flag(&tls_cfg->flags, AST_SSL_TLSV1_CLIENT);
+ } else if (!strcasecmp(value, "sslv2")) {
+ ast_set_flag(&tls_cfg->flags, AST_SSL_SSLV2_CLIENT);
+ ast_clear_flag(&tls_cfg->flags, AST_SSL_TLSV1_CLIENT);
+ ast_clear_flag(&tls_cfg->flags, AST_SSL_SSLV3_CLIENT);
+ }
+ } else if (!strcasecmp(varname, "tlsservercipherorder")) {
+ ast_set2_flag(&tls_cfg->flags, ast_true(value), AST_SSL_SERVER_CIPHER_ORDER);
+ } else if (!strcasecmp(varname, "tlsdisablev1")) {
+ ast_set2_flag(&tls_cfg->flags, ast_true(value), AST_SSL_DISABLE_TLSV1);
+ } else if (!strcasecmp(varname, "tlsdisablev11")) {
+ ast_set2_flag(&tls_cfg->flags, ast_true(value), AST_SSL_DISABLE_TLSV11);
+ } else if (!strcasecmp(varname, "tlsdisablev12")) {
+ ast_set2_flag(&tls_cfg->flags, ast_true(value), AST_SSL_DISABLE_TLSV12);
+ } else {
+ return -1;
+ }
+
+ return 0;
+}
projects / asterisk/asterisk.git / blobdiff