*/
#include "avformat.h"
+#include "internal.h"
+#include "network.h"
+#include "os_support.h"
#include "url.h"
+#include "tls.h"
#include "libavutil/avstring.h"
#include "libavutil/opt.h"
#include "libavutil/parseutils.h"
-#if CONFIG_GNUTLS
-#include <gnutls/gnutls.h>
-#include <gnutls/x509.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 TLSContext {
- 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;
- char *ca_file;
- int verify;
- char *cert_file;
- char *key_file;
- int listen;
-} TLSContext;
-
-#define OFFSET(x) offsetof(TLSContext, x)
-#define D AV_OPT_FLAG_DECODING_PARAM
-#define E AV_OPT_FLAG_ENCODING_PARAM
-static const AVOption options[] = {
- {"ca_file", "Certificate Authority database file", OFFSET(ca_file), AV_OPT_TYPE_STRING, .flags = D|E },
- {"tls_verify", "Verify the peer certificate", OFFSET(verify), AV_OPT_TYPE_INT, { .i64 = 0 }, 0, 1, .flags = D|E },
- {"cert_file", "Certificate file", OFFSET(cert_file), AV_OPT_TYPE_STRING, .flags = D|E },
- {"key_file", "Private key file", OFFSET(key_file), AV_OPT_TYPE_STRING, .flags = D|E },
- {"listen", "Listen for incoming connections", OFFSET(listen), AV_OPT_TYPE_INT, { .i64 = 0 }, 0, 1, .flags = D|E },
- { NULL }
-};
-static const AVClass tls_class = {
- .class_name = "tls",
- .item_name = av_default_item_name,
- .option = options,
- .version = LIBAVUTIL_VERSION_INT,
-};
-
-static int do_tls_poll(URLContext *h, int ret)
+int ff_tls_open_underlying(TLSShared *c, URLContext *parent, const char *uri, AVDictionary **options)
{
- TLSContext *c = h->priv_data;
- struct pollfd p = { c->fd, 0, 0 };
-#if CONFIG_GNUTLS
- switch (ret) {
- case GNUTLS_E_AGAIN:
- case GNUTLS_E_INTERRUPTED:
- break;
- case GNUTLS_E_WARNING_ALERT_RECEIVED:
- av_log(h, AV_LOG_WARNING, "%s\n", gnutls_strerror(ret));
- break;
- default:
- av_log(h, 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(h, AV_LOG_ERROR, "%s\n", ERR_error_string(ERR_get_error(), NULL));
- return AVERROR(EIO);
- }
-#endif
- if (h->flags & AVIO_FLAG_NONBLOCK)
- return AVERROR(EAGAIN);
- while (1) {
- int n = poll(&p, 1, 100);
- if (n > 0)
- break;
- if (ff_check_interrupt(&h->interrupt_callback))
- 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;
const char *p;
- char buf[200], host[200], opts[50] = "";
- int numerichost = 0;
+ char buf[200], opts[50] = "";
struct addrinfo hints = { 0 }, *ai = NULL;
const char *proxy_path;
int use_proxy;
- ff_tls_init();
-
if (c->listen)
snprintf(opts, sizeof(opts), "?listen=1");
- av_url_split(NULL, 0, NULL, 0, host, sizeof(host), &port, NULL, 0, uri);
+ av_url_split(NULL, 0, NULL, 0, c->host, sizeof(c->host), &port, NULL, 0, uri);
p = strchr(uri, '?');
c->listen = 1;
}
- ff_url_join(buf, sizeof(buf), "tcp", NULL, host, port, "%s", p);
+ ff_url_join(buf, sizeof(buf), "tcp", NULL, c->host, port, "%s", p);
hints.ai_flags = AI_NUMERICHOST;
- if (!getaddrinfo(host, NULL, &hints, &ai)) {
- numerichost = 1;
+ if (!getaddrinfo(c->host, NULL, &hints, &ai)) {
+ c->numerichost = 1;
freeaddrinfo(ai);
}
proxy_path = getenv("http_proxy");
- use_proxy = !ff_http_match_no_proxy(getenv("no_proxy"), host) &&
+ use_proxy = !ff_http_match_no_proxy(getenv("no_proxy"), c->host) &&
proxy_path && av_strstart(proxy_path, "http://", NULL);
if (use_proxy) {
av_url_split(NULL, 0, proxy_auth, sizeof(proxy_auth),
proxy_host, sizeof(proxy_host), &proxy_port, NULL, 0,
proxy_path);
- ff_url_join(dest, sizeof(dest), NULL, NULL, host, port, NULL);
+ ff_url_join(dest, sizeof(dest), NULL, NULL, c->host, port, NULL);
ff_url_join(buf, sizeof(buf), "httpproxy", proxy_auth, proxy_host,
proxy_port, "/%s", dest);
}
- ret = ffurl_open(&c->tcp, buf, AVIO_FLAG_READ_WRITE,
- &h->interrupt_callback, NULL);
- if (ret)
- goto fail;
- c->fd = ffurl_get_file_handle(c->tcp);
-
-#if CONFIG_GNUTLS
- gnutls_init(&c->session, c->listen ? GNUTLS_SERVER : GNUTLS_CLIENT);
- if (!c->listen && !numerichost)
- gnutls_server_name_set(c->session, GNUTLS_NAME_DNS, host, strlen(host));
- gnutls_certificate_allocate_credentials(&c->cred);
- if (c->ca_file)
- gnutls_certificate_set_x509_trust_file(c->cred, c->ca_file, GNUTLS_X509_FMT_PEM);
-#if GNUTLS_VERSION_MAJOR >= 3
- else
- gnutls_certificate_set_x509_system_trust(c->cred);
-#endif
- gnutls_certificate_set_verify_flags(c->cred, c->verify ?
- GNUTLS_VERIFY_ALLOW_X509_V1_CA_CRT : 0);
- if (c->cert_file && c->key_file) {
- ret = gnutls_certificate_set_x509_key_file(c->cred,
- c->cert_file, c->key_file,
- GNUTLS_X509_FMT_PEM);
- if (ret < 0) {
- av_log(h, AV_LOG_ERROR,
- "Unable to set cert/key files %s and %s: %s\n",
- c->cert_file, c->key_file, gnutls_strerror(ret));
- ret = AVERROR(EIO);
- goto fail;
- }
- }
- 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;
- }
- if (c->verify) {
- unsigned int status, cert_list_size;
- gnutls_x509_crt_t cert;
- const gnutls_datum_t *cert_list;
- if ((ret = gnutls_certificate_verify_peers2(c->session, &status)) < 0) {
- av_log(h, AV_LOG_ERROR, "Unable to verify peer certificate: %s\n",
- gnutls_strerror(ret));
- ret = AVERROR(EIO);
- goto fail;
- }
- if (status & GNUTLS_CERT_INVALID) {
- av_log(h, AV_LOG_ERROR, "Peer certificate failed verification\n");
- ret = AVERROR(EIO);
- goto fail;
- }
- if (gnutls_certificate_type_get(c->session) != GNUTLS_CRT_X509) {
- av_log(h, AV_LOG_ERROR, "Unsupported certificate type\n");
- ret = AVERROR(EIO);
- goto fail;
- }
- gnutls_x509_crt_init(&cert);
- cert_list = gnutls_certificate_get_peers(c->session, &cert_list_size);
- gnutls_x509_crt_import(cert, cert_list, GNUTLS_X509_FMT_DER);
- ret = gnutls_x509_crt_check_hostname(cert, host);
- gnutls_x509_crt_deinit(cert);
- if (!ret) {
- av_log(h, AV_LOG_ERROR,
- "The certificate's owner does not match hostname %s\n", host);
- ret = AVERROR(EIO);
- goto fail;
- }
- }
-#elif CONFIG_OPENSSL
- c->ctx = SSL_CTX_new(c->listen ? TLSv1_server_method() : TLSv1_client_method());
- if (!c->ctx) {
- av_log(h, AV_LOG_ERROR, "%s\n", ERR_error_string(ERR_get_error(), NULL));
- ret = AVERROR(EIO);
- goto fail;
- }
- if (c->ca_file)
- SSL_CTX_load_verify_locations(c->ctx, c->ca_file, NULL);
- if (c->cert_file && !SSL_CTX_use_certificate_chain_file(c->ctx, c->cert_file)) {
- av_log(h, AV_LOG_ERROR, "Unable to load cert file %s: %s\n",
- c->cert_file, ERR_error_string(ERR_get_error(), NULL));
- ret = AVERROR(EIO);
- goto fail;
- }
- if (c->key_file && !SSL_CTX_use_PrivateKey_file(c->ctx, c->key_file, SSL_FILETYPE_PEM)) {
- av_log(h, AV_LOG_ERROR, "Unable to load key file %s: %s\n",
- c->key_file, ERR_error_string(ERR_get_error(), NULL));
- ret = AVERROR(EIO);
- goto fail;
- }
- // Note, this doesn't check that the peer certificate actually matches
- // the requested hostname.
- if (c->verify)
- SSL_CTX_set_verify(c->ctx, SSL_VERIFY_PEER, NULL);
- c->ssl = SSL_new(c->ctx);
- if (!c->ssl) {
- av_log(h, 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 (!c->listen && !numerichost)
- SSL_set_tlsext_host_name(c->ssl, host);
- while (1) {
- ret = c->listen ? SSL_accept(c->ssl) : SSL_connect(c->ssl);
- if (ret > 0)
- break;
- if (ret == 0) {
- av_log(h, 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_EOF;
- 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_EOF;
- if ((ret = do_tls_poll(h, ret)) < 0)
- return ret;
- }
- return 0;
+ return ffurl_open(&c->tcp, buf, AVIO_FLAG_READ_WRITE,
+ &parent->interrupt_callback, options, parent->protocols, parent);
}
-
-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_close = tls_close,
- .priv_data_size = sizeof(TLSContext),
- .flags = URL_PROTOCOL_FLAG_NETWORK,
- .priv_data_class = &tls_class,
-};
projects / ffmpeg / blobdiff