1 /* Copyright 2011 NORDUnet A/S. All rights reserved.
2 See the file COPYING for licensing information. */
4 #if defined HAVE_CONFIG_H
9 #include <event2/event.h>
10 #include <event2/bufferevent.h>
11 #if defined (RS_ENABLE_TLS)
12 #include <event2/bufferevent_ssl.h>
13 #include <openssl/err.h>
15 #include <radsec/radsec.h>
16 #include <radsec/radsec-impl.h>
19 #if defined (RS_ENABLE_TLS)
27 _evlog_cb (int severity, const char *msg)
32 case _EVENT_LOG_DEBUG:
33 #if !defined (DEBUG_LEVENT)
51 fprintf (stderr, "libevent: [%s] %s\n", sevstr, msg); /* FIXME: stderr? */
55 event_init_socket (struct rs_connection *conn, struct rs_peer *p)
61 conn->fd = socket (p->addr->ai_family, p->addr->ai_socktype,
62 p->addr->ai_protocol);
64 return rs_err_conn_push_fl (conn, RSE_SOCKERR, __FILE__, __LINE__,
66 errno, strerror (errno));
67 if (evutil_make_socket_nonblocking (conn->fd) < 0)
69 evutil_closesocket (conn->fd);
71 return rs_err_conn_push_fl (conn, RSE_SOCKERR, __FILE__, __LINE__,
72 "evutil_make_socket_nonblocking: %d (%s)",
73 errno, strerror (errno));
79 event_init_bufferevent (struct rs_connection *conn, struct rs_peer *peer)
84 if (conn->realm->type == RS_CONN_TYPE_TCP)
86 conn->bev = bufferevent_socket_new (conn->evb, conn->fd, 0);
88 return rs_err_conn_push_fl (conn, RSE_EVENT, __FILE__, __LINE__,
89 "bufferevent_socket_new");
91 #if defined (RS_ENABLE_TLS)
92 else if (conn->realm->type == RS_CONN_TYPE_TLS)
94 if (rs_tls_init (conn))
96 /* Would be convenient to pass BEV_OPT_CLOSE_ON_FREE but things
97 seem to break when be_openssl_ctrl() (in libevent) calls
98 SSL_set_bio() after BIO_new_socket() with flag=1. */
100 bufferevent_openssl_socket_new (conn->evb, conn->fd, conn->tls_ssl,
101 BUFFEREVENT_SSL_CONNECTING, 0);
103 return rs_err_conn_push_fl (conn, RSE_EVENT, __FILE__, __LINE__,
104 "bufferevent_openssl_socket_new");
106 #endif /* RS_ENABLE_TLS */
109 return rs_err_conn_push_fl (conn, RSE_INTERNAL, __FILE__, __LINE__,
110 "%s: unknown connection type: %d", __func__,
118 event_do_connect (struct rs_connection *conn)
124 assert (conn->active_peer);
125 p = conn->active_peer;
129 char host[80], serv[80];
131 getnameinfo (p->addr->ai_addr,
133 host, sizeof(host), serv, sizeof(serv),
134 0 /* NI_NUMERICHOST|NI_NUMERICSERV*/);
135 rs_debug (("%s: connecting to %s:%s\n", __func__, host, serv));
139 if (p->conn->bev) /* TCP */
141 tcp_set_connect_timeout (conn);
142 err = bufferevent_socket_connect (p->conn->bev, p->addr->ai_addr,
143 p->addr->ai_addrlen);
145 rs_err_conn_push_fl (p->conn, RSE_EVENT, __FILE__, __LINE__,
146 "bufferevent_socket_connect: %s",
147 evutil_gai_strerror (err));
149 p->conn->is_connecting = 1;
153 err = connect (p->conn->fd, p->addr->ai_addr, p->addr->ai_addrlen);
156 sockerr = evutil_socket_geterror (p->conn->fd);
157 rs_debug (("%s: %d: connect: %d (%s)\n", __func__, p->conn->fd,
158 sockerr, evutil_socket_error_to_string (sockerr)));
159 rs_err_conn_push_fl (p->conn, RSE_SOCKERR, __FILE__, __LINE__,
160 "%d: connect: %d (%s)", p->conn->fd, sockerr,
161 evutil_socket_error_to_string (sockerr));
167 event_loopbreak (struct rs_connection *conn)
169 int err = event_base_loopbreak (conn->evb);
171 rs_err_conn_push_fl (conn, RSE_EVENT, __FILE__, __LINE__,
172 "event_base_loopbreak: %s",
173 evutil_gai_strerror (err));
179 event_on_disconnect (struct rs_connection *conn)
181 conn->is_connecting = 0;
182 conn->is_connected = 0;
183 rs_debug (("%s: %p disconnected\n", __func__, conn->active_peer));
184 if (conn->callbacks.disconnected_cb)
185 conn->callbacks.disconnected_cb (conn->user_data);
189 event_on_connect (struct rs_connection *conn, struct rs_packet *pkt)
191 assert (!conn->is_connecting);
192 conn->is_connected = 1;
193 rs_debug (("%s: %p connected\n", __func__, conn->active_peer));
195 evtimer_del (conn->tev);
196 if (conn->callbacks.connected_cb)
197 conn->callbacks.connected_cb (conn->user_data);
199 packet_do_send (pkt);
203 event_init_eventbase (struct rs_connection *conn)
209 event_enable_debug_mode ();
211 event_set_log_callback (_evlog_cb);
212 conn->evb = event_base_new ();
214 return rs_err_conn_push_fl (conn, RSE_EVENT, __FILE__, __LINE__,