43     struct ia_tunneling_hal *thdl;  in ia_start_tunneling()  local
47     thdl = (struct ia_tunneling_hal *)malloc(sizeof(struct ia_tunneling_hal));  in ia_start_tunneling()
48     if (thdl == NULL) {  in ia_start_tunneling()
54     thdl->tunnel_dev = open(TUNNELING_DEVICE, O_RDONLY);  in ia_start_tunneling()
55     if (-1 == thdl->tunnel_dev) {  in ia_start_tunneling()
58         free(thdl);  in ia_start_tunneling()
62     return thdl;  in ia_start_tunneling()
65 int ia_stop_tunneling(struct ia_tunneling_hal *thdl)  in ia_stop_tunneling()  argument
69     if (thdl) {  in ia_stop_tunneling()
70         close(thdl->tunnel_dev);  in ia_stop_tunneling()
71         thdl->tunnel_dev = 0;  in ia_stop_tunneling()
72         free(thdl);  in ia_stop_tunneling()
78 int ia_enable_tunneling_source(struct ia_tunneling_hal *thdl,  in ia_enable_tunneling_source()  argument
87     if (thdl == NULL) {  in ia_enable_tunneling_source()
96     err = ioctl(thdl->tunnel_dev, TUNNEL_SETUP, &tm);  in ia_enable_tunneling_source()
105 int ia_disable_tunneling_source(struct ia_tunneling_hal *thdl,  in ia_disable_tunneling_source()  argument
114     if (thdl == NULL) {  in ia_disable_tunneling_source()
123     err = ioctl(thdl->tunnel_dev, TUNNEL_TERMINATE, &tm);  in ia_disable_tunneling_source()
133 int ia_read_tunnel_data(struct ia_tunneling_hal *thdl,  in ia_read_tunnel_data()  argument
144     if (thdl == NULL) {  in ia_read_tunnel_data()
149     read_bytes = read(thdl->tunnel_dev, buf, buf_sz);  in ia_read_tunnel_data()
158 int ia_set_tunnel_out_buf_threshold(struct ia_tunneling_hal *thdl,  in ia_set_tunnel_out_buf_threshold()  argument
165     if (thdl == NULL) {  in ia_set_tunnel_out_buf_threshold()
171     err = ioctl(thdl->tunnel_dev, TUNNEL_SET_EVENT_THRESHOLD,  in ia_set_tunnel_out_buf_threshold()