+/* See the file COPYING for licensing information. */
+
#include <string.h>
#include <assert.h>
#include <freeradius/libradius.h>
#include <event2/event.h>
#include <event2/bufferevent.h>
-#include "libradsec.h"
-#include "libradsec-impl.h"
+#include <radsec/radsec.h>
+#include <radsec/radsec-impl.h>
#if defined DEBUG
+#include <netdb.h>
+#include <sys/socket.h>
#include "debug.h"
#endif
-int
-_packet_create (struct rs_connection *conn, struct rs_packet **pkt_out,
- int code)
+static int
+_packet_create (struct rs_connection *conn, struct rs_packet **pkt_out)
{
struct rs_packet *p;
RADIUS_PACKET *rpkt;
rpkt = rad_alloc (1);
if (!rpkt)
- return rs_conn_err_push (conn, RSE_NOMEM, __func__);
+ return rs_err_conn_push (conn, RSE_NOMEM, __func__);
rpkt->id = -1;
- rpkt->code = code;
p = (struct rs_packet *) malloc (sizeof (struct rs_packet));
if (!p)
{
rad_free (&rpkt);
- return rs_conn_err_push (conn, RSE_NOMEM, __func__);
+ return rs_err_conn_push (conn, RSE_NOMEM, __func__);
}
memset (p, 0, sizeof (struct rs_packet));
p->conn = conn;
return RSE_OK;
}
-int
-rs_packet_create_acc_request (struct rs_connection *conn,
- struct rs_packet **pkt_out,
- const char *user_name, const char *user_pw)
+static void
+_do_send (struct rs_packet *pkt)
{
- struct rs_packet *pkt;
- struct rs_attr *attr;
-
- if (_packet_create (conn, pkt_out, PW_AUTHENTICATION_REQUEST))
- return -1;
- pkt = *pkt_out;
-
- if (rs_attr_create (conn, &attr, "User-Name", user_name))
- return -1;
- rs_packet_add_attr (pkt, attr);
-
- if (rs_attr_create (conn, &attr, "User-Password", user_pw))
- return -1;
- /* FIXME: need this too? rad_pwencode(user_pw, &pwlen, SECRET, reqauth) */
- rs_packet_add_attr (pkt, attr);
+ int err;
- return RSE_OK;
+ rad_encode (pkt->rpkt, NULL, pkt->conn->active_peer->secret);
+ assert (pkt->rpkt);
+#if defined (DEBUG)
+ {
+ char host[80], serv[80];
+
+ getnameinfo (pkt->conn->active_peer->addr->ai_addr,
+ pkt->conn->active_peer->addr->ai_addrlen,
+ host, sizeof(host), serv, sizeof(serv),
+ 0 /* NI_NUMERICHOST|NI_NUMERICSERV*/);
+ fprintf (stderr, "%s: about to send this to %s:%s:\n", __func__, host,
+ serv);
+ rs_dump_packet (pkt);
+ }
+#endif
+ err = bufferevent_write (pkt->conn->bev, pkt->rpkt->data,
+ pkt->rpkt->data_len);
+ if (err < 0)
+ rs_err_conn_push_fl (pkt->conn, RSE_EVENT, __FILE__, __LINE__,
+ "bufferevent_write: %s", evutil_gai_strerror(err));
}
static void
#if defined (DEBUG)
fprintf (stderr, "%s: connected\n", __func__);
#endif
- rad_encode (pkt->rpkt, NULL, pkt->conn->active_peer->secret);
-#if defined (DEBUG)
- fprintf (stderr, "%s: about to send this to %s:\n", __func__, "<fixme>");
- rs_dump_packet (pkt);
-#endif
- if (bufferevent_write(bev, pkt->rpkt->data, pkt->rpkt->data_len))
- rs_conn_err_push_fl (pkt->conn, RSE_EVENT, __FILE__, __LINE__,
- "bufferevent_write");
+ _do_send (pkt);
/* Packet will be freed in write callback. */
}
else if (events & BEV_EVENT_ERROR)
- rs_conn_err_push_fl (pkt->conn, RSE_CONNERR, __FILE__, __LINE__, NULL);
-}
-
-void
-rs_packet_destroy(struct rs_packet *pkt)
-{
- rad_free (&pkt->rpkt);
- rs_free (pkt->conn->ctx, pkt);
+ rs_err_conn_push_fl (pkt->conn, RSE_CONNERR, __FILE__, __LINE__, NULL);
}
static void
rs_packet_destroy (pkt);
}
+static void
+_read_cb (struct bufferevent *bev, void *ctx)
+{
+ struct rs_packet *pkt = (struct rs_packet *) ctx;
+ size_t n;
+
+ assert (pkt);
+ assert (pkt->conn);
+ if (!pkt->hdr_read_flag)
+ {
+ n = bufferevent_read (pkt->conn->bev, pkt->hdr, RS_HEADER_LEN);
+ if (n == RS_HEADER_LEN)
+ {
+ pkt->hdr_read_flag = 1;
+ pkt->rpkt->data_len = (pkt->hdr[2] << 8) + pkt->hdr[3];
+ if (pkt->rpkt->data_len < 20 /* || len > 4096 */)
+ abort (); /* FIXME: Read and discard packet. */
+ pkt->rpkt->data = rs_malloc (pkt->conn->ctx, pkt->rpkt->data_len);
+ if (!pkt->rpkt->data)
+ {
+ rs_err_conn_push_fl (pkt->conn, RSE_NOMEM, __FILE__, __LINE__,
+ NULL);
+ abort (); /* FIXME: Read and discard packet. */
+ }
+ memcpy (pkt->rpkt->data, pkt->hdr, RS_HEADER_LEN);
+ bufferevent_setwatermark (pkt->conn->bev, EV_READ,
+ pkt->rpkt->data_len - RS_HEADER_LEN, 0);
+#if defined (DEBUG)
+ fprintf (stderr, "%s: packet header read, total pkt len=%d\n",
+ __func__, pkt->rpkt->data_len);
+#endif
+ }
+ else if (n < 0)
+ return; /* Buffer frozen. */
+ else
+ assert (!"short header");
+ }
+
+#if defined (DEBUG)
+ printf ("%s: trying to read %d octets of packet data\n", __func__, pkt->rpkt->data_len - RS_HEADER_LEN);
+#endif
+ n = bufferevent_read (pkt->conn->bev, pkt->rpkt->data + RS_HEADER_LEN, pkt->rpkt->data_len - RS_HEADER_LEN);
+#if defined (DEBUG)
+ printf ("%s: read %d octets of packet data\n", __func__, n);
+#endif
+ if (n == pkt->rpkt->data_len - RS_HEADER_LEN)
+ {
+ bufferevent_disable (pkt->conn->bev, EV_READ);
+ pkt->hdr_read_flag = 0;
+ memset (pkt->hdr, 0, sizeof(*pkt->hdr));
+#if defined (DEBUG)
+ fprintf (stderr, "%s: complete packet read\n", __func__);
+#endif
+ rad_decode (pkt->rpkt, NULL, pkt->conn->active_peer->secret);
+ if (event_base_loopbreak (pkt->conn->evb) < 0)
+ abort (); /* FIXME */
+ }
+ else if (n < 0)
+ return; /* Buffer frozen. */
+ else
+ assert (!"short packet");
+}
+
+static void
+_evlog_cb (int severity, const char *msg)
+{
+ const char *sevstr;
+ switch (severity)
+ {
+ case _EVENT_LOG_DEBUG:
+#if !defined (DEBUG_LEVENT)
+ return;
+#endif
+ sevstr = "debug";
+ break;
+ case _EVENT_LOG_MSG:
+ sevstr = "msg";
+ break;
+ case _EVENT_LOG_WARN:
+ sevstr = "warn";
+ break;
+ case _EVENT_LOG_ERR:
+ sevstr = "err";
+ break;
+ default:
+ sevstr = "???";
+ break;
+ }
+ fprintf (stderr, "libevent: [%s] %s\n", sevstr, msg);
+}
+
static int
_init_evb (struct rs_connection *conn)
{
#if defined (DEBUG)
event_enable_debug_mode ();
#endif
+ event_set_log_callback (_evlog_cb);
conn->evb = event_base_new ();
if (!conn->evb)
- return rs_conn_err_push_fl (conn, RSE_EVENT, __FILE__, __LINE__,
+ return rs_err_conn_push_fl (conn, RSE_EVENT, __FILE__, __LINE__,
"event_base_new");
}
return RSE_OK;
static int
_init_socket (struct rs_connection *conn, struct rs_peer *p)
{
- if (p->s < 0)
+ if (p->fd != -1)
+ return RSE_OK;
+
+ assert (p->addr);
+ p->fd = socket (p->addr->ai_family, p->addr->ai_socktype,
+ p->addr->ai_protocol);
+ if (p->fd < 0)
+ return rs_err_conn_push_fl (conn, RSE_SOME_ERROR, __FILE__, __LINE__,
+ strerror (errno));
+ if (evutil_make_socket_nonblocking (p->fd) < 0)
{
- assert (p->addr);
- p->s = socket (p->addr->ai_family, p->addr->ai_socktype,
- p->addr->ai_protocol);
- if (p->s < 0)
- return rs_conn_err_push_fl (conn, RSE_SOME_ERROR, __FILE__, __LINE__,
- strerror (errno));
+ evutil_closesocket (p->fd);
+ return rs_err_conn_push_fl (conn, RSE_SOME_ERROR, __FILE__, __LINE__,
+ strerror (errno));
}
return RSE_OK;
}
}
static int
-_init_bev (struct rs_connection *conn, struct rs_peer *peer,
- struct rs_packet *pkt)
+_init_bev (struct rs_connection *conn, struct rs_peer *peer)
{
if (!conn->bev)
{
- conn->bev = bufferevent_socket_new (conn->evb, peer->s, 0);
+ conn->bev = bufferevent_socket_new (conn->evb, peer->fd, 0);
if (!conn->bev)
- return rs_conn_err_push_fl (conn, RSE_EVENT, __FILE__, __LINE__,
+ return rs_err_conn_push_fl (conn, RSE_EVENT, __FILE__, __LINE__,
"bufferevent_socket_new");
- bufferevent_setcb (conn->bev, NULL, _write_cb, _event_cb, pkt);
}
return RSE_OK;
}
static void
_do_connect (struct rs_peer *p)
{
- if (bufferevent_socket_connect (p->conn->bev, p->addr->ai_addr,
- p->addr->ai_addrlen) < 0)
- rs_conn_err_push_fl (p->conn, RSE_EVENT, __FILE__, __LINE__,
- "bufferevent_socket_connect");
+ int err;
+
+ err = bufferevent_socket_connect (p->conn->bev, p->addr->ai_addr,
+ p->addr->ai_addrlen);
+ if (err < 0)
+ rs_err_conn_push_fl (p->conn, RSE_EVENT, __FILE__, __LINE__,
+ "bufferevent_socket_connect: %s",
+ evutil_gai_strerror(err));
else
p->is_connecting = 1;
}
p = _pick_peer (conn);
if (!p)
- return rs_conn_err_push_fl (conn, RSE_NOPEER, __FILE__, __LINE__, NULL);
+ return rs_err_conn_push_fl (conn, RSE_NOPEER, __FILE__, __LINE__, NULL);
if (_init_socket (conn, p))
return -1;
- if (_init_bev (conn, p, pkt))
+ if (_init_bev (conn, p))
return -1;
if (!p->is_connected)
return RSE_OK;
}
+static int
+_conn_is_open_p (struct rs_connection *conn)
+{
+ return conn->active_peer && conn->active_peer->is_connected;
+}
+
+/* Public functions. */
int
-rs_packet_send (struct rs_connection *conn, struct rs_packet *pkt, void *data)
+rs_packet_create_acc_request (struct rs_connection *conn,
+ struct rs_packet **pkt_out,
+ const char *user_name, const char *user_pw)
{
- assert (conn);
- assert (pkt->rpkt);
- if (_conn_open (conn, pkt))
+ struct rs_packet *pkt;
+ struct rs_attr *attr;
+
+ if (_packet_create (conn, pkt_out))
return -1;
+ pkt = *pkt_out;
+ pkt->rpkt->code = PW_AUTHENTICATION_REQUEST;
+
+ if (user_name)
+ {
+ if (rs_attr_create (conn, &attr, "User-Name", user_name))
+ return -1;
+ rs_packet_add_attr (pkt, attr);
+ }
+
+ if (user_pw)
+ {
+ if (rs_attr_create (conn, &attr, "User-Password", user_pw))
+ return -1;
+ /* FIXME: need this too? rad_pwencode(user_pw, &pwlen, SECRET, reqauth) */
+ rs_packet_add_attr (pkt, attr);
+ }
+
+ return RSE_OK;
+}
+
+int
+rs_packet_send (struct rs_packet *pkt, void *user_data)
+{
+ struct rs_connection *conn;
+ assert (pkt);
+ conn = pkt->conn;
+
+ if (_conn_is_open_p (conn))
+ _do_send (pkt);
+ else
+ if (_conn_open (conn, pkt))
+ return -1;
+
assert (conn->evb);
assert (conn->bev);
assert (conn->active_peer);
- assert (conn->active_peer->s >= 0);
- event_base_dispatch (conn->evb);
+ assert (conn->active_peer->fd >= 0);
+
+ if (conn->callbacks.connected_cb || conn->callbacks.disconnected_cb
+ || conn->callbacks.received_cb || conn->callbacks.sent_cb)
+ ; /* FIXME: install event callbacks, other than below */
+ else
+ {
+ bufferevent_setcb (conn->bev, _read_cb, _write_cb, _event_cb, pkt);
+ event_base_dispatch (conn->evb);
+ }
+
#if defined (DEBUG)
fprintf (stderr, "%s: event loop done\n", __func__);
assert (event_base_got_break(conn->evb));
return RSE_OK;
}
-int rs_packet_receive(struct rs_connection *conn, struct rs_packet **pkt)
+int
+rs_conn_receive_packet (struct rs_connection *conn, struct rs_packet **pkt_out)
{
- //struct bufferevent *bev;
+ struct rs_packet *pkt;
- //skalleper;
- //bufferevent_enable(bev, EV_READ);
- return 0; /* FIXME */
-}
+ assert (conn);
+
+ if (_packet_create (conn, pkt_out))
+ return -1;
+ pkt = *pkt_out;
+ pkt->conn = conn;
+
+ if (_conn_open (conn, pkt))
+ return -1;
+ assert (conn->evb);
+ assert (conn->bev);
+ assert (conn->active_peer);
+ assert (conn->active_peer->fd >= 0);
+
+ bufferevent_setwatermark (conn->bev, EV_READ, RS_HEADER_LEN, 0);
+ bufferevent_enable (conn->bev, EV_READ);
+ event_base_dispatch (conn->evb);
+#if defined (DEBUG)
+ fprintf (stderr, "%s: event loop done", __func__);
+ if (event_base_got_break(conn->evb))
+ {
+ fprintf (stderr, ", got this:\n");
+ rs_dump_packet (pkt);
+ }
+ else
+ fprintf (stderr, ", no reply\n");
+#endif
+ return RSE_OK;
+}
void
rs_packet_add_attr(struct rs_packet *pkt, struct rs_attr *attr)
attr->pkt = pkt;
}
+struct radius_packet *
+rs_packet_frpkt(struct rs_packet *pkt)
+{
+ assert (pkt);
+ return pkt->rpkt;
+}
+
+void
+rs_packet_destroy(struct rs_packet *pkt)
+{
+ if (pkt)
+ {
+ // TODO: free all attributes
+ rad_free (&pkt->rpkt);
+ rs_free (pkt->conn->ctx, pkt);
+ }
+}
projects / radsecproxy.git / blobdiff