/* * Create the socket and set the tx/rx funcs */ int isis_sock_init (struct isis_circuit *circuit) { int retval = ISIS_OK; if (isisd_privs.change (ZPRIVS_RAISE)) zlog_err ("%s: could not raise privs, %s", __func__, safe_strerror (errno)); #ifdef GNU_LINUX retval = open_packet_socket (circuit); #else retval = open_bpf_dev (circuit); #endif if (retval != ISIS_OK) { zlog_warn ("%s: could not initialize the socket", __func__); goto end; } if (circuit->circ_type == CIRCUIT_T_BROADCAST) { circuit->tx = isis_send_pdu_bcast; circuit->rx = isis_recv_pdu_bcast; } else if (circuit->circ_type == CIRCUIT_T_P2P) { circuit->tx = isis_send_pdu_p2p; circuit->rx = isis_recv_pdu_p2p; } else { zlog_warn ("isis_sock_init(): unknown circuit type"); retval = ISIS_WARNING; goto end; } end: if (isisd_privs.change (ZPRIVS_LOWER)) zlog_err ("%s: could not lower privs, %s", __func__, safe_strerror (errno)); return retval; }
/* * Create the socket and set the tx/rx funcs */ int isis_sock_init (struct isis_circuit *circuit) { int retval = ISIS_OK; if (isisd_privs.change (ZPRIVS_RAISE)) zlog_err ("%s: could not raise privs, %s", __func__, safe_strerror (errno)); retval = open_packet_socket (circuit); if (retval != ISIS_OK) { zlog_warn ("%s: could not initialize the socket", __func__); goto end; } /* Assign Rx and Tx callbacks are based on real if type */ if (if_is_broadcast (circuit->interface)) { circuit->tx = isis_send_pdu_bcast; circuit->rx = isis_recv_pdu_bcast; } else if (if_is_pointopoint (circuit->interface)) { circuit->tx = isis_send_pdu_p2p; circuit->rx = isis_recv_pdu_p2p; } else { zlog_warn ("isis_sock_init(): unknown circuit type"); retval = ISIS_WARNING; goto end; } end: if (isisd_privs.change (ZPRIVS_LOWER)) zlog_err ("%s: could not lower privs, %s", __func__, safe_strerror (errno)); return retval; }