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 #include <radsec/radsec.h>
12 #include <radsec/radsec-impl.h>
21 /* RFC 5080 2.2.1. Retransmission Behavior */
28 _conn_open (struct rs_connection *conn, struct rs_packet *pkt)
30 if (event_init_eventbase (conn))
33 if (!conn->active_peer)
34 peer_pick_peer (conn);
35 if (!conn->active_peer)
36 return rs_err_conn_push_fl (conn, RSE_NOPEER, __FILE__, __LINE__, NULL);
38 if (event_init_socket (conn, conn->active_peer))
41 if (conn->realm->type == RS_CONN_TYPE_TCP
42 || conn->realm->type == RS_CONN_TYPE_TLS)
44 if (event_init_bufferevent (conn, conn->active_peer))
49 if (udp_init (conn, pkt))
53 if (!conn->is_connected)
54 if (!conn->is_connecting)
55 event_do_connect (conn);
61 _conn_is_open_p (struct rs_connection *conn)
63 return conn->active_peer && conn->is_connected;
66 /* User callback used when we're dispatching for user. */
68 _wcb (void *user_data)
70 struct rs_packet *pkt = (struct rs_packet *) user_data;
72 pkt->flags |= rs_packet_sent_flag;
74 bufferevent_disable (pkt->conn->bev, EV_WRITE|EV_READ);
76 event_del (pkt->conn->wev);
80 rs_packet_send (struct rs_packet *pkt, void *user_data)
82 struct rs_connection *conn = NULL;
89 if (_conn_is_open_p (conn))
92 if (_conn_open (conn, pkt))
96 assert (conn->active_peer);
97 assert (conn->fd >= 0);
99 conn->user_data = user_data;
101 if (conn->bev) /* TCP */
103 bufferevent_setcb (conn->bev, NULL, tcp_write_cb, tcp_event_cb, pkt);
104 bufferevent_enable (conn->bev, EV_WRITE);
108 err = event_add (conn->wev, NULL);
110 return rs_err_conn_push_fl (conn, RSE_EVENT, __FILE__, __LINE__,
112 evutil_gai_strerror (err));
115 /* Do dispatch, unless the user wants to do it herself. */
116 if (!conn_user_dispatch_p (conn))
118 conn->callbacks.sent_cb = _wcb;
119 conn->user_data = pkt;
120 rs_debug (("%s: entering event loop\n", __func__));
121 err = event_base_dispatch (conn->evb);
123 return rs_err_conn_push_fl (conn, RSE_EVENT, __FILE__, __LINE__,
124 "event_base_dispatch: %s",
125 evutil_gai_strerror (err));
126 rs_debug (("%s: event loop done\n", __func__));
127 conn->callbacks.sent_cb = NULL;
128 conn->user_data = NULL;
130 if ((pkt->flags & rs_packet_sent_flag) == 0)