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 <radsec/radsec.h>
11 #include <radsec/radsec-impl.h>
17 /* Callback for conn->wev and conn->rev. FIXME: Rename. */
19 _evcb (evutil_socket_t fd, short what, void *user_data)
21 //rs_debug (("%s: fd=%d what=0x%x\n", __func__, fd, what));
22 if (what & EV_TIMEOUT)
24 struct rs_connection *conn = (struct rs_connection *) user_data;
26 conn->is_connecting = 0;
27 rs_debug (("%s: UDP timeout NYI", __func__));
29 else if (what & EV_READ)
31 struct rs_connection *conn = (struct rs_connection *) user_data;
33 /* read a single UDP packet and stick it in a new struct
36 rs_debug (("%s: UDP read NYI", __func__));
38 else if (what & EV_WRITE)
40 struct rs_packet *pkt = (struct rs_packet *) user_data;
42 /* Socket ready for writing, possibly as a result of a
43 successful connect. */
44 if (!pkt->conn->is_connected)
45 event_on_connect (pkt->conn, pkt);
46 if (pkt->conn->out_queue)
48 /* Send one packet, the first. */
50 struct rs_packet *p = pkt->conn->out_queue;
53 assert (p->rpkt->data);
54 r = compat_send (fd, p->rpkt->data, p->rpkt->data_len, 0);
57 int sockerr = evutil_socket_geterror (p->conn->fd);
58 if (sockerr != EAGAIN)
59 rs_err_conn_push_fl (p->conn, RSE_SOCKERR, __FILE__, __LINE__,
60 "%d: send: %d (%s)", fd, sockerr,
61 evutil_socket_error_to_string (sockerr));
62 return; /* Don't unlink packet. */
64 pkt->conn->out_queue = p->next;
70 udp_init (struct rs_connection *conn, struct rs_packet *pkt)
74 conn->rev = event_new (conn->evb, conn->fd, EV_READ|EV_PERSIST, _evcb, conn);
75 conn->wev = event_new (conn->evb, conn->fd, EV_WRITE|EV_PERSIST, _evcb, pkt);
76 if (!conn->rev || !conn->wev)
79 event_free (conn->rev);
80 /* ENOMEM _or_ EINVAL but EINVAL only if we use EV_SIGNAL, at
81 least for now (libevent-2.0.5). */
82 return rs_err_conn_push_fl (conn, RSE_NOMEM, __FILE__, __LINE__, NULL);