Function pfi_kkif_attach

freebsd/netpfil/pf/pf_if.c:298–327

}

struct pfi_kkif *
pfi_kkif_attach(struct pfi_kkif *kif, const char *kif_name)
{
	struct pfi_kkif *kif1;

	PF_RULES_WASSERT();
	KASSERT(kif != NULL, ("%s: null kif", __func__));

	kif1 = pfi_kkif_find(kif_name);
	if (kif1 != NULL) {
		pf_kkif_free(kif);
		return (kif1);
	}

	pf_kkif_zero(kif);
	strlcpy(kif->pfik_name, kif_name, sizeof(kif->pfik_name));
	/*
	 * It seems that the value of time_second is in unintialzied state
	 * when pf sets interface statistics clear time in boot phase if pf
	 * was statically linked to kernel. Instead of setting the bogus
	 * time value have pfi_get_ifaces handle this case. In
	 * pfi_get_ifaces it uses time_second if it sees the time is 0.
	 */
	kif->pfik_tzero = time_second > 1 ? time_second : 0;
	TAILQ_INIT(&kif->pfik_dynaddrs);

	RB_INSERT(pfi_ifhead, &V_pfi_ifs, kif);

	return (kif);
}

void
pfi_kkif_ref(struct pfi_kkif *kif)