#include <stdlib.h>
#include <string.h>
+#include <errno.h>
+#include <sys/time.h>
#include <assert.h>
#include <freeradius/libradius.h>
#include <event2/event.h>
#endif
static int
+_loopbreak (struct rs_connection *conn)
+{
+ int err = event_base_loopbreak (conn->evb);
+ if (err < 0)
+ rs_err_conn_push_fl (conn, RSE_EVENT, __FILE__, __LINE__,
+ "event_base_loopbreak: %s",
+ evutil_gai_strerror (err));
+ return err;
+}
+
+static int
_do_send (struct rs_packet *pkt)
{
int err;
assert (pkt->rpkt);
assert (!pkt->original);
+ /* Add Message-Authenticator, RFC 2869. */
+ /* FIXME: Make Message-Authenticator optional? */
vp = paircreate (PW_MESSAGE_AUTHENTICATOR, PW_TYPE_OCTETS);
if (!vp)
- return rs_err_conn_push_fl (pkt->conn, RSE_NOMEM, __FILE__, __LINE__,
+ return rs_err_conn_push_fl (pkt->conn, RSE_FR, __FILE__, __LINE__,
"paircreate: %s", fr_strerror ());
pairadd (&pkt->rpkt->vps, vp);
if (err < 0)
return rs_err_conn_push_fl (pkt->conn, RSE_EVENT, __FILE__, __LINE__,
"bufferevent_write: %s",
- evutil_gai_strerror(err));
+ evutil_gai_strerror (err));
return RSE_OK;
}
static void
_on_connect (struct rs_connection *conn)
{
- conn->active_peer->is_connected = 1;
+ conn->is_connected = 1;
rs_debug (("%s: %p connected\n", __func__, conn->active_peer));
+ evtimer_del (conn->tev);
if (conn->callbacks.connected_cb)
conn->callbacks.connected_cb (conn->user_data);
}
static void
_on_disconnect (struct rs_connection *conn)
{
- conn->active_peer->is_connected = 0;
+ conn->is_connecting = 0;
+ conn->is_connected = 0;
rs_debug (("%s: %p disconnected\n", __func__, conn->active_peer));
if (conn->callbacks.disconnected_cb)
conn->callbacks.disconnected_cb (conn->user_data);
_event_cb (struct bufferevent *bev, short events, void *ctx)
{
struct rs_packet *pkt = (struct rs_packet *)ctx;
- struct rs_connection *conn;
- struct rs_peer *p;
- int sockerr;
+ struct rs_connection *conn = NULL;
+ struct rs_peer *p = NULL;
+ int sockerr = 0;
#if defined (RS_ENABLE_TLS)
- unsigned long tlserr;
+ unsigned long tlserr = 0;
#endif
assert (pkt);
conn = pkt->conn;
p = conn->active_peer;
- p->is_connecting = 0;
+ conn->is_connecting = 0;
if (events & BEV_EVENT_CONNECTED)
{
_on_connect (conn);
{
_on_disconnect (conn);
}
+ else if (events & BEV_EVENT_TIMEOUT)
+ {
+ rs_debug (("%s: %p times out on %s\n", __func__, p,
+ (events & BEV_EVENT_READING) ? "read" : "write"));
+ rs_err_conn_push_fl (pkt->conn, RSE_TIMEOUT_IO, __FILE__, __LINE__, NULL);
+ }
else if (events & BEV_EVENT_ERROR)
{
sockerr = evutil_socket_geterror (conn->active_peer->fd);
{
rs_err_conn_push_fl (pkt->conn, RSE_SOCKERR, __FILE__, __LINE__,
"%d: socket error %d (%s)",
- conn->active_peer->fd,
+ conn->fd,
sockerr,
evutil_socket_error_to_string (sockerr));
- rs_debug (("%s: socket error on fd %d: %d\n", __func__,
- conn->active_peer->fd,
+ rs_debug (("%s: socket error on fd %d: %s (%d)\n", __func__,
+ conn->fd,
+ evutil_socket_error_to_string (sockerr),
sockerr));
}
#if defined (RS_ENABLE_TLS)
rs_debug (("%s: openssl error: %s\n", __func__,
ERR_error_string (tlserr, NULL)));
rs_err_conn_push_fl (pkt->conn, RSE_SSLERR, __FILE__, __LINE__,
- "%d", tlserr);
+ ERR_error_string (tlserr, NULL));
}
}
#endif /* RS_ENABLE_TLS */
+ _loopbreak (conn);
}
+
+#if defined (DEBUG)
+ if (events & BEV_EVENT_ERROR && events != BEV_EVENT_ERROR)
+ rs_debug (("%s: BEV_EVENT_ERROR and more: 0x%x\n", __func__, events));
+#endif
}
static void
Inform upper layer about successful reception of valid RADIUS
message by invoking conn->callbacks.recevied_cb(), if !NULL. */
static void
-_read_cb (struct bufferevent *bev, void *ctx)
+_read_cb (struct bufferevent *bev, void *user_data)
{
- struct rs_packet *pkt = (struct rs_packet *) ctx;
+ struct rs_packet *pkt = (struct rs_packet *) user_data;
assert (pkt);
assert (pkt->conn);
assert (pkt->rpkt);
- pkt->rpkt->sockfd = pkt->conn->active_peer->fd;
+ pkt->rpkt->sockfd = pkt->conn->fd;
pkt->rpkt->vps = NULL;
if (!pkt->hdr_read_flag)
static int
_init_evb (struct rs_connection *conn)
{
- if (!conn->evb)
- {
+ if (conn->evb)
+ return RSE_OK;
+
#if defined (DEBUG)
- event_enable_debug_mode ();
+ event_enable_debug_mode ();
#endif
- event_set_log_callback (_evlog_cb);
- conn->evb = event_base_new ();
- if (!conn->evb)
- return rs_err_conn_push_fl (conn, RSE_EVENT, __FILE__, __LINE__,
- "event_base_new");
- }
+ event_set_log_callback (_evlog_cb);
+ conn->evb = event_base_new ();
+ if (!conn->evb)
+ 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->fd != -1)
+ if (conn->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)
+ conn->fd = socket (p->addr->ai_family, p->addr->ai_socktype,
+ p->addr->ai_protocol);
+ if (conn->fd < 0)
+ return rs_err_conn_push_fl (conn, RSE_SOCKERR, __FILE__, __LINE__,
+ "socket: %d (%s)",
+ errno, strerror (errno));
+ if (evutil_make_socket_nonblocking (conn->fd) < 0)
{
- evutil_closesocket (p->fd);
- return rs_err_conn_push_fl (conn, RSE_SOME_ERROR, __FILE__, __LINE__,
- strerror (errno));
+ evutil_closesocket (conn->fd);
+ conn->fd = -1;
+ return rs_err_conn_push_fl (conn, RSE_SOCKERR, __FILE__, __LINE__,
+ "evutil_make_socket_nonblocking: %d (%s)",
+ errno, strerror (errno));
}
return RSE_OK;
}
static struct rs_peer *
_pick_peer (struct rs_connection *conn)
{
+ assert (conn);
+
+ if (conn->active_peer)
+ conn->active_peer = conn->active_peer->next; /* Next. */
if (!conn->active_peer)
- conn->active_peer = conn->peers;
+ conn->active_peer = conn->peers; /* From the top. */
+
return conn->active_peer;
}
+static void
+_conn_timeout_cb (int fd, short event, void *data)
+{
+ struct rs_connection *conn;
+
+ assert (data);
+ conn = (struct rs_connection *) data;
+
+ if (event & EV_TIMEOUT)
+ {
+ rs_debug (("%s: connection timeout on %p (fd %d) connecting to %p\n",
+ __func__, conn, conn->fd, conn->active_peer));
+ conn->is_connecting = 0;
+ rs_err_conn_push_fl (conn, RSE_TIMEOUT_IO, __FILE__, __LINE__, NULL);
+ _loopbreak (conn);
+ }
+}
+static int
+_set_timeout (struct rs_connection *conn)
+{
+ struct timeval tv;
+
+ if (!conn->tev)
+ conn->tev = evtimer_new (conn->evb, _conn_timeout_cb, conn);
+ if (!conn->tev)
+ return rs_err_conn_push_fl (conn, RSE_EVENT, __FILE__, __LINE__,
+ "evtimer_new");
+ tv.tv_sec = conn->realm->timeout;
+ tv.tv_usec = 0;
+ evtimer_add (conn->tev, &tv);
+
+ return RSE_OK;
+}
+
static int
_init_bev (struct rs_connection *conn, struct rs_peer *peer)
{
if (conn->bev)
return RSE_OK;
- switch (conn->type)
+ switch (conn->realm->type)
{
case RS_CONN_TYPE_UDP:
+ /* Fall through. */
+ /* NOTE: We know this is wrong for several reasons, most notably
+ because libevent doesn't work as expected with UDP. The
+ timeout handling is wrong too. */
case RS_CONN_TYPE_TCP:
- conn->bev = bufferevent_socket_new (conn->evb, peer->fd, 0);
+ conn->bev = bufferevent_socket_new (conn->evb, conn->fd, 0);
if (!conn->bev)
return rs_err_conn_push_fl (conn, RSE_EVENT, __FILE__, __LINE__,
"bufferevent_socket_new");
break;
+
#if defined (RS_ENABLE_TLS)
case RS_CONN_TYPE_TLS:
if (rs_tls_init (conn))
seem to break when be_openssl_ctrl() (in libevent) calls
SSL_set_bio() after BIO_new_socket() with flag=1. */
conn->bev =
- bufferevent_openssl_socket_new (conn->evb, peer->fd, conn->tls_ssl,
+ bufferevent_openssl_socket_new (conn->evb, conn->fd, conn->tls_ssl,
BUFFEREVENT_SSL_CONNECTING, 0);
if (!conn->bev)
return rs_err_conn_push_fl (conn, RSE_EVENT, __FILE__, __LINE__,
"bufferevent_openssl_socket_new");
-
break;
+
case RS_CONN_TYPE_DTLS:
- return rs_err_conn_push_fl (conn, RSE_NOSYS, __FILE__, __LINE__,
- "%s: NYI", __func__);
+ return rs_err_conn_push_fl (conn, RSE_NOSYS, __FILE__, __LINE__, NULL);
#endif /* RS_ENABLE_TLS */
+
default:
return rs_err_conn_push_fl (conn, RSE_INTERNAL, __FILE__, __LINE__,
"%s: unknown connection type: %d", __func__,
- conn->type);
+ conn->realm->type);
}
return RSE_OK;
}
static void
-_do_connect (struct rs_peer *p)
+_do_connect (struct rs_connection *conn)
{
+ struct rs_peer *p;
int err;
+ assert (conn);
+ assert (conn->active_peer);
+ p = conn->active_peer;
+
+#if defined (DEBUG)
+ {
+ char host[80], serv[80];
+
+ getnameinfo (p->addr->ai_addr,
+ p->addr->ai_addrlen,
+ host, sizeof(host), serv, sizeof(serv),
+ 0 /* NI_NUMERICHOST|NI_NUMERICSERV*/);
+ rs_debug (("%s: connecting to %s:%s\n", __func__, host, serv));
+ }
+#endif
+
+ _set_timeout (conn);
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));
+ evutil_gai_strerror (err));
else
- p->is_connecting = 1;
+ p->conn->is_connecting = 1;
}
static int
_conn_open(struct rs_connection *conn, struct rs_packet *pkt)
{
- struct rs_peer *p;
-
if (_init_evb (conn))
return -1;
- p = _pick_peer (conn);
- if (!p)
+ if (!conn->active_peer)
+ _pick_peer (conn);
+ if (!conn->active_peer)
return rs_err_conn_push_fl (conn, RSE_NOPEER, __FILE__, __LINE__, NULL);
- if (_init_socket (conn, p))
+ if (_init_socket (conn, conn->active_peer))
return -1;
- if (_init_bev (conn, p))
+ if (_init_bev (conn, conn->active_peer))
return -1;
- if (!p->is_connected)
- if (!p->is_connecting)
- _do_connect (p);
+ if (!conn->is_connected)
+ if (!conn->is_connecting)
+ _do_connect (conn);
return RSE_OK;
}
static int
_conn_is_open_p (struct rs_connection *conn)
{
- return conn->active_peer && conn->active_peer->is_connected;
+ return conn->active_peer && conn->is_connected;
}
/* Public functions. */
}
int
-rs_packet_create_auth_request (struct rs_connection *conn,
- struct rs_packet **pkt_out,
- const char *user_name, const char *user_pw)
+rs_packet_create_authn_request (struct rs_connection *conn,
+ struct rs_packet **pkt_out,
+ const char *user_name, const char *user_pw)
{
struct rs_packet *pkt;
struct rs_attr *attr;
static void
_wcb (void *user_data)
{
- struct rs_connection *conn = (struct rs_connection *) user_data;
- int err;
-
- assert (conn);
-
- /* When we're running the event loop for the user, we must break
- it in order to give the control back to the user. */
- err = event_base_loopbreak (conn->evb);
- if (err < 0)
- rs_err_conn_push_fl (conn, RSE_EVENT, __FILE__, __LINE__,
- "event_base_loopbreak: %s",
- evutil_gai_strerror(err));
+ struct rs_packet *pkt = (struct rs_packet *) user_data;
+ assert (pkt);
+ pkt->written_flag = 1;
+ bufferevent_disable (pkt->conn->bev, EV_WRITE|EV_READ);
}
int
rs_packet_send (struct rs_packet *pkt, void *user_data)
{
struct rs_connection *conn = NULL;
- int err = RSE_OK;
+ int err = 0;
assert (pkt);
assert (pkt->conn);
assert (conn->evb);
assert (conn->bev);
assert (conn->active_peer);
- assert (conn->active_peer->fd >= 0);
+ assert (conn->fd >= 0);
conn->user_data = user_data;
bufferevent_setcb (conn->bev, NULL, _write_cb, _event_cb, pkt);
+ bufferevent_enable (conn->bev, EV_WRITE);
/* Do dispatch, unless the user wants to do it herself. */
if (!conn->user_dispatch_flag)
{
conn->callbacks.sent_cb = _wcb;
- conn->user_data = conn;
+ conn->user_data = pkt;
rs_debug (("%s: entering event loop\n", __func__));
err = event_base_dispatch (conn->evb);
if (err < 0)
return rs_err_conn_push_fl (pkt->conn, RSE_EVENT, __FILE__, __LINE__,
"event_base_dispatch: %s",
- evutil_gai_strerror(err));
+ evutil_gai_strerror (err));
rs_debug (("%s: event loop done\n", __func__));
conn->callbacks.sent_cb = NULL;
conn->user_data = NULL;
- if (!event_base_got_break (conn->evb))
+ if (!pkt->written_flag)
return -1;
}
static void
_rcb (struct rs_packet *packet, void *user_data)
{
- int err = 0;
-
- /* When we're running the event loop for the user, we must break it
- in order to give the control back to the user. */
- err = event_base_loopbreak (packet->conn->evb);
- if (err < 0)
- rs_err_conn_push_fl (packet->conn, RSE_EVENT, __FILE__, __LINE__,
- "event_base_loopbreak: %s",
- evutil_gai_strerror(err));
+ struct rs_packet *pkt = (struct rs_packet *) user_data;
+ assert (pkt);
+ pkt->valid_flag = 1;
+ bufferevent_disable (pkt->conn->bev, EV_WRITE|EV_READ);
}
/* Special function used in libradsec blocking dispatching mode,
struct rs_packet *request,
struct rs_packet **pkt_out)
{
- int err = RSE_OK;
+ int err = 0;
struct rs_packet *pkt = NULL;
assert (conn);
+ assert (conn->realm);
assert (!conn->user_dispatch_flag); /* Dispatching mode only. */
if (rs_packet_create (conn, pkt_out))
pkt->conn = conn;
pkt->original = request;
- if (_conn_open (conn, pkt))
- return -1;
assert (conn->evb);
assert (conn->bev);
assert (conn->active_peer);
- assert (conn->active_peer->fd >= 0);
+ assert (conn->fd >= 0);
- /* Install read and event callbacks with libevent. */
bufferevent_setwatermark (conn->bev, EV_READ, RS_HEADER_LEN, 0);
- bufferevent_enable (conn->bev, EV_READ);
bufferevent_setcb (conn->bev, _read_cb, NULL, _event_cb, pkt);
-
- /* Install read callback with ourselves, for signaling successful
- reception of message. */
+ bufferevent_enable (conn->bev, EV_READ);
conn->callbacks.received_cb = _rcb;
+ conn->user_data = pkt;
/* Dispatch. */
rs_debug (("%s: entering event loop\n", __func__));
err = event_base_dispatch (conn->evb);
+ conn->callbacks.received_cb = NULL;
if (err < 0)
return rs_err_conn_push_fl (pkt->conn, RSE_EVENT, __FILE__, __LINE__,
"event_base_dispatch: %s",
- evutil_gai_strerror(err));
+ evutil_gai_strerror (err));
rs_debug (("%s: event loop done\n", __func__));
- conn->callbacks.received_cb = NULL;
- if (!event_base_got_break (conn->evb))
+
+ if (!pkt->valid_flag)
return -1;
#if defined (DEBUG)
- rs_dump_packet (pkt);
+ rs_dump_packet (pkt);
#endif
pkt->original = NULL; /* FIXME: Why? */
}
void
-rs_packet_add_attr(struct rs_packet *pkt, struct rs_attr *attr)
+rs_packet_add_attr (struct rs_packet *pkt, struct rs_attr *attr)
{
pairadd (&pkt->rpkt->vps, attr->vp);
attr->pkt = pkt;
}
struct radius_packet *
-rs_packet_frpkt(struct rs_packet *pkt)
+rs_packet_frpkt (struct rs_packet *pkt)
{
assert (pkt);
return pkt->rpkt;
}
void
-rs_packet_destroy(struct rs_packet *pkt)
+rs_packet_destroy (struct rs_packet *pkt)
{
if (pkt)
{
projects / radsecproxy.git / blobdiff