bsd/net/if_utun.c

32 Application of kernel control for interface creation
36 This kernel control will register an interface for every client that connects.
71 static errno_t	utun_output(ifnet_t interface, mbuf_t data);
72 static errno_t	utun_demux(ifnet_t interface, mbuf_t data, char *frame_header,
74 static errno_t	utun_framer(ifnet_t	interface, mbuf_t *packet,
82 static errno_t	utun_add_proto(ifnet_t interface, protocol_family_t protocol,
85 static errno_t	utun_del_proto(ifnet_t interface, protocol_family_t protocol);
86 static errno_t	utun_ioctl(ifnet_t interface, u_long cmd, void *data);
87 static void		utun_detached(ifnet_t interface);
90 static errno_t	utun_attach_proto(ifnet_t interface, protocol_family_t proto);
91 static errno_t	utun_proto_input(ifnet_t interface, protocol_family_t protocol,
93 static errno_t utun_proto_pre_output(ifnet_t interface, protocol_family_t protocol,
134 	/* Find a unique value for our interface family */
194 	/* kernel control allocates, interface frees */
205 	printf("utun_ctl_connect: creating interface utun%d\n", pcb->utun_unit - 1);
207 	/* Create the interface */
234 	/* The interface must generate its own IPv6 LinkLocal address,
235 	 * if possible following the recommendation of RFC2472 to the 64bit interface ID
239 	/* Reset the stats in case as the interface may have been recycled */
243 	/* Attach the interface */
264 	ifnet_t				interface,
276 				 ifnet_name(interface), ifnet_unit(interface));
285 				 ifnet_name(interface), ifnet_unit(interface));
295 	ifnet_t				interface,
308 				 ifnet_name(interface), ifnet_unit(interface));
325 				 ifnet_name(interface), ifnet_unit(interface));
344 	ifnet_t				interface,
369 	result = utun_detach_ip(interface, protocol, pf_socket);
384 	result = ifnet_get_address_list_family(interface, &addresses, protocol);
387 			ifnet_name(interface), ifnet_unit(interface),
393 		utun_remove_address(interface, protocol, addresses[i], pf_socket);
401 	result = utun_detach_ip(interface, protocol, pf_socket);
430 	 * We want to do everything in our power to ensure that the interface
433 	 * release the interface.
597 			   ifnet_t	interface,
600 	struct utun_pcb	*pcb = ifnet_softc(interface);
628 			ifnet_stat_increment_out(interface, 0, 0, 1);
632 				ifnet_stat_increment_out(interface, 1, length, 0);
644 	__unused ifnet_t	interface,
663 		   __unused ifnet_t				interface,
678 		ifnet_stat_increment_out(interface, 0, 0, 1);
696 	__unused ifnet_t						interface,
715 	__unused ifnet_t 			interface,
723 	ifnet_t		interface,
731 			ifnet_set_mtu(interface, ((struct ifreq*)data)->ifr_mtu);
747 	ifnet_t	interface)
749 	struct utun_pcb	*pcb = ifnet_softc(interface);
760 	__unused ifnet_t	interface,
777 	__unused ifnet_t	interface,
792 	ifnet_t				interface,
802 	result = ifnet_attach_protocol(interface, protocol, &proto);