diff options
| -rwxr-xr-x | configure | 2 | ||||
| -rw-r--r-- | libavformat/Makefile | 1 | ||||
| -rw-r--r-- | libavformat/allformats.c | 1 | ||||
| -rw-r--r-- | libavformat/tls.c | 234 | ||||
| -rw-r--r-- | libavformat/version.h | 2 |
5 files changed, 239 insertions, 1 deletions
@@ -1483,6 +1483,8 @@ mmst_protocol_deps="network" rtmp_protocol_select="tcp_protocol" rtp_protocol_select="udp_protocol" tcp_protocol_deps="network" +tls_protocol_deps_any="openssl gnutls" +tls_protocol_select="tcp_protocol" udp_protocol_deps="network" # filters diff --git a/libavformat/Makefile b/libavformat/Makefile index e9bcd28a93..5da01aa60b 100644 --- a/libavformat/Makefile +++ b/libavformat/Makefile @@ -334,6 +334,7 @@ OBJS-$(CONFIG_RTMP_PROTOCOL) += $(RTMP-OBJS-yes) OBJS-$(CONFIG_RTP_PROTOCOL) += rtpproto.o OBJS-$(CONFIG_TCP_PROTOCOL) += tcp.o +OBJS-$(CONFIG_TLS_PROTOCOL) += tls.o OBJS-$(CONFIG_UDP_PROTOCOL) += udp.o EXAMPLES = metadata output diff --git a/libavformat/allformats.c b/libavformat/allformats.c index 8e89b2f4ff..d078a154dc 100644 --- a/libavformat/allformats.c +++ b/libavformat/allformats.c @@ -254,5 +254,6 @@ void av_register_all(void) #endif REGISTER_PROTOCOL (RTP, rtp); REGISTER_PROTOCOL (TCP, tcp); + REGISTER_PROTOCOL (TLS, tls); REGISTER_PROTOCOL (UDP, udp); } diff --git a/libavformat/tls.c b/libavformat/tls.c new file mode 100644 index 0000000000..85bf46f903 --- /dev/null +++ b/libavformat/tls.c @@ -0,0 +1,234 @@ +/* + * TLS/SSL Protocol + * Copyright (c) 2011 Martin Storsjo + * + * This file is part of Libav. + * + * Libav is free software; you can redistribute it and/or + * modify it under the terms of the GNU Lesser General Public + * License as published by the Free Software Foundation; either + * version 2.1 of the License, or (at your option) any later version. + * + * Libav 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 + * Lesser General Public License for more details. + * + * You should have received a copy of the GNU Lesser General Public + * License along with Libav; if not, write to the Free Software + * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA + */ + +#include "avformat.h" +#include "url.h" +#include "libavutil/avstring.h" +#if CONFIG_GNUTLS +#include <gnutls/gnutls.h> +#define TLS_read(c, buf, size) gnutls_record_recv(c->session, buf, size) +#define TLS_write(c, buf, size) gnutls_record_send(c->session, buf, size) +#define TLS_shutdown(c) gnutls_bye(c->session, GNUTLS_SHUT_RDWR) +#define TLS_free(c) do { \ + if (c->session) \ + gnutls_deinit(c->session); \ + if (c->cred) \ + gnutls_certificate_free_credentials(c->cred); \ + } while (0) +#elif CONFIG_OPENSSL +#include <openssl/bio.h> +#include <openssl/ssl.h> +#include <openssl/err.h> +#define TLS_read(c, buf, size) SSL_read(c->ssl, buf, size) +#define TLS_write(c, buf, size) SSL_write(c->ssl, buf, size) +#define TLS_shutdown(c) SSL_shutdown(c->ssl) +#define TLS_free(c) do { \ + if (c->ssl) \ + SSL_free(c->ssl); \ + if (c->ctx) \ + SSL_CTX_free(c->ctx); \ + } while (0) +#endif +#include "network.h" +#include "os_support.h" +#include "internal.h" +#if HAVE_POLL_H +#include <poll.h> +#endif + +typedef struct { + const AVClass *class; + URLContext *tcp; +#if CONFIG_GNUTLS + gnutls_session_t session; + gnutls_certificate_credentials_t cred; +#elif CONFIG_OPENSSL + SSL_CTX *ctx; + SSL *ssl; +#endif + int fd; +} TLSContext; + +static int do_tls_poll(URLContext *h, int ret) +{ + TLSContext *c = h->priv_data; + struct pollfd p = { c->fd, 0, 0 }; +#if CONFIG_GNUTLS + if (ret != GNUTLS_E_AGAIN && ret != GNUTLS_E_INTERRUPTED) { + av_log(NULL, AV_LOG_ERROR, "%s\n", gnutls_strerror(ret)); + return AVERROR(EIO); + } + if (gnutls_record_get_direction(c->session)) + p.events = POLLOUT; + else + p.events = POLLIN; +#elif CONFIG_OPENSSL + ret = SSL_get_error(c->ssl, ret); + if (ret == SSL_ERROR_WANT_READ) { + p.events = POLLIN; + } else if (ret == SSL_ERROR_WANT_WRITE) { + p.events = POLLOUT; + } else { + av_log(NULL, AV_LOG_ERROR, "%s\n", ERR_error_string(ret, NULL)); + return AVERROR(EIO); + } +#endif + if (h->flags & URL_FLAG_NONBLOCK) + return AVERROR(EAGAIN); + while (1) { + int n = poll(&p, 1, 100); + if (n > 0) + break; + if (url_interrupt_cb()) + return AVERROR(EINTR); + } + return 0; +} + +static int tls_open(URLContext *h, const char *uri, int flags) +{ + TLSContext *c = h->priv_data; + int ret; + int port; + char buf[200], host[200]; + int numerichost = 0; + struct addrinfo hints = { 0 }, *ai = NULL; + + ff_tls_init(); + + av_url_split(NULL, 0, NULL, 0, host, sizeof(host), &port, NULL, 0, uri); + ff_url_join(buf, sizeof(buf), "tcp", NULL, host, port, NULL); + + hints.ai_flags = AI_NUMERICHOST; + if (!getaddrinfo(host, NULL, &hints, &ai)) { + numerichost = 1; + freeaddrinfo(ai); + } + + ret = ffurl_open(&c->tcp, buf, AVIO_FLAG_READ_WRITE); + if (ret) + goto fail; + c->fd = ffurl_get_file_handle(c->tcp); + +#if CONFIG_GNUTLS + gnutls_init(&c->session, GNUTLS_CLIENT); + if (!numerichost) + gnutls_server_name_set(c->session, GNUTLS_NAME_DNS, host, strlen(host)); + gnutls_certificate_allocate_credentials(&c->cred); + gnutls_certificate_set_verify_flags(c->cred, 0); + gnutls_credentials_set(c->session, GNUTLS_CRD_CERTIFICATE, c->cred); + gnutls_transport_set_ptr(c->session, (gnutls_transport_ptr_t) + (intptr_t) c->fd); + gnutls_priority_set_direct(c->session, "NORMAL", NULL); + while (1) { + ret = gnutls_handshake(c->session); + if (ret == 0) + break; + if ((ret = do_tls_poll(h, ret)) < 0) + goto fail; + } +#elif CONFIG_OPENSSL + c->ctx = SSL_CTX_new(SSLv3_client_method()); + if (!c->ctx) { + av_log(NULL, AV_LOG_ERROR, "%s\n", ERR_error_string(ERR_get_error(), NULL)); + ret = AVERROR(EIO); + goto fail; + } + c->ssl = SSL_new(c->ctx); + if (!c->ssl) { + av_log(NULL, AV_LOG_ERROR, "%s\n", ERR_error_string(ERR_get_error(), NULL)); + ret = AVERROR(EIO); + goto fail; + } + SSL_set_fd(c->ssl, c->fd); + if (!numerichost) + SSL_set_tlsext_host_name(c->ssl, host); + while (1) { + ret = SSL_connect(c->ssl); + if (ret > 0) + break; + if (ret == 0) { + av_log(NULL, AV_LOG_ERROR, "Unable to negotiate TLS/SSL session\n"); + ret = AVERROR(EIO); + goto fail; + } + if ((ret = do_tls_poll(h, ret)) < 0) + goto fail; + } +#endif + return 0; +fail: + TLS_free(c); + if (c->tcp) + ffurl_close(c->tcp); + ff_tls_deinit(); + return ret; +} + +static int tls_read(URLContext *h, uint8_t *buf, int size) +{ + TLSContext *c = h->priv_data; + while (1) { + int ret = TLS_read(c, buf, size); + if (ret > 0) + return ret; + if (ret == 0) + return AVERROR(EIO); + if ((ret = do_tls_poll(h, ret)) < 0) + return ret; + } + return 0; +} + +static int tls_write(URLContext *h, const uint8_t *buf, int size) +{ + TLSContext *c = h->priv_data; + while (1) { + int ret = TLS_write(c, buf, size); + if (ret > 0) + return ret; + if (ret == 0) + return AVERROR(EIO); + if ((ret = do_tls_poll(h, ret)) < 0) + return ret; + } + return 0; +} + +static int tls_close(URLContext *h) +{ + TLSContext *c = h->priv_data; + TLS_shutdown(c); + TLS_free(c); + ffurl_close(c->tcp); + ff_tls_deinit(); + return 0; +} + +URLProtocol ff_tls_protocol = { + .name = "tls", + .url_open = tls_open, + .url_read = tls_read, + .url_write = tls_write, + .url_seek = NULL, + .url_close = tls_close, + .priv_data_size = sizeof(TLSContext), +}; diff --git a/libavformat/version.h b/libavformat/version.h index b0c1f9481e..2b1ef9530c 100644 --- a/libavformat/version.h +++ b/libavformat/version.h @@ -24,7 +24,7 @@ #include "libavutil/avutil.h" #define LIBAVFORMAT_VERSION_MAJOR 53 -#define LIBAVFORMAT_VERSION_MINOR 10 +#define LIBAVFORMAT_VERSION_MINOR 11 #define LIBAVFORMAT_VERSION_MICRO 0 #define LIBAVFORMAT_VERSION_INT AV_VERSION_INT(LIBAVFORMAT_VERSION_MAJOR, \ |