diff options
Diffstat (limited to 'lib/packet.c')
| -rw-r--r-- | lib/packet.c | 170 |
1 files changed, 121 insertions, 49 deletions
diff --git a/lib/packet.c b/lib/packet.c index 63e2b60..9a27e8c 100644 --- a/lib/packet.c +++ b/lib/packet.c @@ -8,6 +8,8 @@ #include <radsec/radsec.h> #include <radsec/radsec-impl.h> #if defined DEBUG +#include <netdb.h> +#include <sys/socket.h> #include "debug.h" #endif @@ -38,29 +40,31 @@ _packet_create (struct rs_connection *conn, struct rs_packet **pkt_out) 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)) - return -1; - pkt = *pkt_out; - pkt->rpkt->code = PW_AUTHENTICATION_REQUEST; + int err; - 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); - - 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_conn_err_push_fl (pkt->conn, RSE_EVENT, __FILE__, __LINE__, + "bufferevent_write: %s", evutil_gai_strerror(err)); } static void @@ -83,28 +87,13 @@ _event_cb (struct bufferevent *bev, short events, void *ctx) #if defined (DEBUG) fprintf (stderr, "%s: connected\n", __func__); #endif - rad_encode (pkt->rpkt, NULL, pkt->conn->active_peer->secret); - assert (pkt->rpkt); -#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); -} - static void _write_cb (struct bufferevent *bev, void *ctx) { @@ -136,13 +125,13 @@ _read_cb (struct bufferevent *bev, void *ctx) 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 (); /* TODO: Read and discard. */ + abort (); /* FIXME: Read and discard packet. */ pkt->rpkt->data = rs_malloc (pkt->conn->ctx, pkt->rpkt->data_len); if (!pkt->rpkt->data) { rs_conn_err_push_fl (pkt->conn, RSE_NOMEM, __FILE__, __LINE__, NULL); - abort (); /* FIXME: recovering takes reading of packet */ + abort (); /* FIXME: Read and discard packet. */ } memcpy (pkt->rpkt->data, pkt->hdr, RS_HEADER_LEN); bufferevent_setwatermark (pkt->conn->bev, EV_READ, @@ -158,9 +147,13 @@ _read_cb (struct bufferevent *bev, void *ctx) 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); @@ -179,6 +172,33 @@ _read_cb (struct bufferevent *bev, void *ctx) assert (!"short packet"); } +#if defined (DEBUG) +static void +_evlog_cb (int severity, const char *msg) +{ + const char *sevstr; + switch (severity) + { + case _EVENT_LOG_DEBUG: + 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); +} +#endif /* DEBUG */ + static int _init_evb (struct rs_connection *conn) { @@ -186,6 +206,7 @@ _init_evb (struct rs_connection *conn) { #if defined (DEBUG) event_enable_debug_mode (); + event_set_log_callback (_evlog_cb); #endif conn->evb = event_base_new (); if (!conn->evb) @@ -234,10 +255,14 @@ _init_bev (struct rs_connection *conn, struct rs_peer *peer) static void _do_connect (struct rs_peer *p) { - if (bufferevent_socket_connect (p->conn->bev, p->addr->ai_addr, - p->addr->ai_addrlen) < 0) + int err; + + err = bufferevent_socket_connect (p->conn->bev, p->addr->ai_addr, + p->addr->ai_addrlen); + if (err < 0) rs_conn_err_push_fl (p->conn, RSE_EVENT, __FILE__, __LINE__, - "bufferevent_socket_connect"); + "bufferevent_socket_connect: %s", + evutil_gai_strerror(err)); else p->is_connecting = 1; } @@ -259,7 +284,6 @@ _conn_open(struct rs_connection *conn, struct rs_packet *pkt) if (_init_bev (conn, p)) return -1; - bufferevent_setcb (conn->bev, _read_cb, _write_cb, _event_cb, pkt); if (!p->is_connected) if (!p->is_connecting) @@ -268,23 +292,64 @@ _conn_open(struct rs_connection *conn, struct rs_packet *pkt) 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_create_acc_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; + + if (_packet_create (conn, pkt_out)) + return -1; + pkt = *pkt_out; + pkt->rpkt->code = PW_AUTHENTICATION_REQUEST; + + 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); + + return RSE_OK; +} + int -rs_packet_send (struct rs_packet *pkt, void *data) +rs_packet_send (struct rs_packet *pkt, void *user_data) { struct rs_connection *conn; assert (pkt); - assert (pkt->conn); - assert (pkt->rpkt); conn = pkt->conn; - if (_conn_open (conn, pkt)) - return -1; + 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); + 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__); @@ -343,3 +408,10 @@ rs_packet_frpkt(struct rs_packet *pkt) assert (pkt); return pkt->rpkt; } + +void +rs_packet_destroy(struct rs_packet *pkt) +{ + rad_free (&pkt->rpkt); + rs_free (pkt->conn->ctx, pkt); +} |