Function pfi_initialize_vnet

freebsd/netpfil/pf/pf_if.c:114–160

    MTX_DEF);

void
pfi_initialize_vnet(void)
{
	struct pfi_list kifs = LIST_HEAD_INITIALIZER();
	struct epoch_tracker et;
	struct pfi_kkif *kif;
	struct ifg_group *ifg;
	struct ifnet *ifp;
	int nkifs;

	V_pfi_buffer_max = 64;
	V_pfi_buffer = malloc(V_pfi_buffer_max * sizeof(*V_pfi_buffer),
	    PFI_MTYPE, M_WAITOK);

	nkifs = 1;	/* one for V_pfi_all */
	IFNET_RLOCK();
	CK_STAILQ_FOREACH(ifg, &V_ifg_head, ifg_next)
		nkifs++;
	CK_STAILQ_FOREACH(ifp, &V_ifnet, if_link)
		nkifs++;

	for (int n = 0; n < nkifs; n++) {
		kif = pf_kkif_create(M_WAITOK);
		LIST_INSERT_HEAD(&kifs, kif, pfik_list);
	}

	NET_EPOCH_ENTER(et);
	PF_RULES_WLOCK();
	kif = LIST_FIRST(&kifs);
	LIST_REMOVE(kif, pfik_list);
	V_pfi_all = pfi_kkif_attach(kif, IFG_ALL);
	CK_STAILQ_FOREACH(ifg, &V_ifg_head, ifg_next) {
		kif = LIST_FIRST(&kifs);
		LIST_REMOVE(kif, pfik_list);
		pfi_attach_ifgroup(ifg, kif);
	}
	CK_STAILQ_FOREACH(ifp, &V_ifnet, if_link) {
		kif = LIST_FIRST(&kifs);
		LIST_REMOVE(kif, pfik_list);
		pfi_attach_ifnet(ifp, kif);
	}
	PF_RULES_WUNLOCK();
	NET_EPOCH_EXIT(et);
	IFNET_RUNLOCK();

	MPASS(LIST_EMPTY(&kifs));
}

void
pfi_initialize(void)