static inline ssize_t tls_pull(gnutls_transport_ptr ptr, void *buf, size_t size) { struct gnutella_socket *s = ptr; ssize_t ret; int saved_errno; socket_check(s); g_assert(is_valid_fd(s->file_desc)); ret = s_read(s->file_desc, buf, size); saved_errno = errno; tls_signal_pending(s); if ((ssize_t) -1 == ret) { tls_set_errno(s, saved_errno); if (!is_temporary_error(saved_errno)) { socket_connection_reset(s); } } else if (0 == ret) { socket_eof(s); } tls_transport_debug("tls_pull", s, size, ret); errno = saved_errno; return ret; }
static inline ssize_t tls_push(gnutls_transport_ptr ptr, const void *buf, size_t size) { struct gnutella_socket *s = ptr; ssize_t ret; int saved_errno; socket_check(s); g_assert(is_valid_fd(s->file_desc)); ret = s_write(s->file_desc, buf, size); saved_errno = errno; tls_signal_pending(s); if ((ssize_t) -1 == ret) { tls_set_errno(s, saved_errno); if (ECONNRESET == saved_errno || EPIPE == saved_errno) { socket_connection_reset(s); } } tls_transport_debug("tls_push", s, size, ret); errno = saved_errno; return ret; }
void read_incoming_link (struct context *c) { /* * Set up for recvfrom call to read datagram * sent to our TCP/UDP port. */ int status; /*ASSERT (!c->c2.to_tun.len);*/ perf_push (PERF_READ_IN_LINK); c->c2.buf = c->c2.buffers->read_link_buf; ASSERT (buf_init (&c->c2.buf, FRAME_HEADROOM_ADJ (&c->c2.frame, FRAME_HEADROOM_MARKER_READ_LINK))); status = link_socket_read (c->c2.link_socket, &c->c2.buf, MAX_RW_SIZE_LINK (&c->c2.frame), &c->c2.from); if (socket_connection_reset (c->c2.link_socket, status)) { #if PORT_SHARE if (port_share && socket_foreign_protocol_detected (c->c2.link_socket)) { const struct buffer *fbuf = socket_foreign_protocol_head (c->c2.link_socket); const int sd = socket_foreign_protocol_sd (c->c2.link_socket); port_share_redirect (port_share, fbuf, sd); register_signal (c, SIGTERM, "port-share-redirect"); } else #endif { /* received a disconnect from a connection-oriented protocol */ if (c->options.inetd) { register_signal (c, SIGTERM, "connection-reset-inetd"); msg (D_STREAM_ERRORS, "Connection reset, inetd/xinetd exit [%d]", status); } else { #ifdef ENABLE_OCC if (event_timeout_defined(&c->c2.explicit_exit_notification_interval)) { msg (D_STREAM_ERRORS, "Connection reset during exit notification period, ignoring [%d]", status); openvpn_sleep(1); } else #endif { register_signal (c, SIGUSR1, "connection-reset"); /* SOFT-SIGUSR1 -- TCP connection reset */ msg (D_STREAM_ERRORS, "Connection reset, restarting [%d]", status); } } } perf_pop (); return; } /* check recvfrom status */ check_status (status, "read", c->c2.link_socket, NULL); #ifdef ENABLE_SOCKS /* Remove socks header if applicable */ socks_postprocess_incoming_link (c); #endif perf_pop (); }