1 /*-
2  * Copyright (c) 1999-2002, 2009, 2019 Robert N. M. Watson
4  * Copyright (c) 2001-2004 Networks Associates Technology, Inc.
9  * This software was developed by Robert Watson and Ilmar Habibulin for the
12  * This software was enhanced by SPARTA ISSO under SPAWAR contract
13  * N66001-04-C-6019 ("SEFOS").
15  * This software was developed for the FreeBSD Project in part by Network
17  * Associates, Inc. under DARPA/SPAWAR contract N66001-01-C-8035 ("CBOSS"),
20  * This software was developed at the University of Cambridge Computer
32  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
41  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
76  * our own global mutex for struct ifnet.  Non-ideal, but should help in the
124 		d->bd_label = mac_bpfdesc_label_alloc();  in mac_bpfdesc_init()
126 		d->bd_label = NULL;  in mac_bpfdesc_init()
204 	if (d->bd_label != NULL) {  in mac_bpfdesc_destroy()
205 		mac_bpfdesc_label_free(d->bd_label);  in mac_bpfdesc_destroy()
206 		d->bd_label = NULL;  in mac_bpfdesc_destroy()
303 	int locked;  in mac_ifnet_create()  local
308 	MAC_IFNET_LOCK(ifp, locked);  in mac_ifnet_create()
310 	MAC_IFNET_UNLOCK(ifp, locked);  in mac_ifnet_create()
317 	MAC_POLICY_PERFORM_NOSLEEP(bpfdesc_create, cred, d, d->bd_label);  in mac_bpfdesc_create()
333 	MAC_POLICY_PERFORM_NOSLEEP(bpfdesc_create_mbuf, d, d->bd_label, m,  in mac_bpfdesc_create_mbuf()
341 	int locked;  in mac_ifnet_create_mbuf_impl()  local
345 	MAC_IFNET_LOCK(ifp, locked);  in mac_ifnet_create_mbuf_impl()
348 	MAC_IFNET_UNLOCK(ifp, locked);  in mac_ifnet_create_mbuf_impl()
357 	int error, locked;  in mac_bpfdesc_check_receive()  local
365 	MAC_IFNET_LOCK(ifp, locked);  in mac_bpfdesc_check_receive()
366 	MAC_POLICY_CHECK_NOSLEEP(bpfdesc_check_receive, d, d->bd_label, ifp,  in mac_bpfdesc_check_receive()
369 	MAC_IFNET_UNLOCK(ifp, locked);  in mac_bpfdesc_check_receive()
381 	int error, locked;  in mac_ifnet_check_transmit_impl()  local
387 	MAC_IFNET_LOCK(ifp, locked);  in mac_ifnet_check_transmit_impl()
391 	MAC_IFNET_UNLOCK(ifp, locked);  in mac_ifnet_check_transmit_impl()
403 	int error, locked;  in mac_ifnet_ioctl_get()  local
425 	MAC_IFNET_LOCK(ifp, locked);  in mac_ifnet_ioctl_get()
427 	MAC_IFNET_UNLOCK(ifp, locked);  in mac_ifnet_ioctl_get()
446 	int error, locked;  in mac_ifnet_ioctl_set()  local
485 	MAC_IFNET_LOCK(ifp, locked);  in mac_ifnet_ioctl_set()
489 		MAC_IFNET_UNLOCK(ifp, locked);  in mac_ifnet_ioctl_set()
496 	MAC_IFNET_UNLOCK(ifp, locked);  in mac_ifnet_ioctl_set()