/* * CDDL HEADER START * * The contents of this file are subject to the terms of the * Common Development and Distribution License (the "License"). * You may not use this file except in compliance with the License. * * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE * or http://www.opensolaris.org/os/licensing. * See the License for the specific language governing permissions * and limitations under the License. * * When distributing Covered Code, include this CDDL HEADER in each * file and include the License file at usr/src/OPENSOLARIS.LICENSE. * If applicable, add the following below this CDDL HEADER, with the * fields enclosed by brackets "[]" replaced with your own identifying * information: Portions Copyright [yyyy] [name of copyright owner] * * CDDL HEADER END */ /* * Copyright 2010 Sun Microsystems, Inc. All rights reserved. * Use is subject to license terms. */ #include <sys/types.h> #include <sys/stream.h> #include <net/bpf.h> #include <net/bpfdesc.h> /* * This file provides the link to the functions required from the mac * module. It is currently in bpf, rather than mac (like ipnet_bpf) * because of the mac/dls split. The bpf driver needs to know when * interfaces appear and disappear and the best place for that is in * dls. Unfortunately all of the other functions used here are found * in the mac module, making it seem ill suited to being at home in * dls. Similarly it has even less purpose being in mac as it is * today. */ static int mac_bpf_open(const char *, uintptr_t *, zoneid_t); static void mac_bpf_close(uintptr_t); static const char *mac_bpf_name(uintptr_t); static int mac_bpf_type(uintptr_t); static void mac_bpf_sdu_get(uintptr_t, uint_t *); static int mac_bpf_tx(uintptr_t, mblk_t *); static uintptr_t mac_bpf_promisc_add(uintptr_t, int, void *, uintptr_t *, int); static void mac_bpf_promisc_remove(uintptr_t); static int mac_bpf_client_open(uintptr_t, uintptr_t *); static void mac_bpf_client_close(uintptr_t); static const char *mac_bpf_client_name(uintptr_t); static int mac_bpf_getdlt(uintptr_t, uint_t *); static int mac_bpf_getlinkid(const char *, datalink_id_t *, zoneid_t); static int mac_bpf_getzone(uintptr_t, zoneid_t *); bpf_provider_t bpf_mac = { BPR_MAC, mac_bpf_open, mac_bpf_close, mac_bpf_name, mac_bpf_type, mac_bpf_sdu_get, mac_bpf_tx, mac_bpf_promisc_add, mac_bpf_promisc_remove, mac_bpf_getlinkid, mac_bpf_client_close, mac_bpf_client_name, mac_bpf_client_open, mac_bpf_getzone, mac_bpf_getdlt }; /*ARGSUSED*/ static int mac_bpf_open(const char *name, uintptr_t *mhandlep, zoneid_t zoneid) { return (mac_open_by_linkname(name, (mac_handle_t *)mhandlep)); } static void mac_bpf_close(uintptr_t mhandle) { mac_close((mac_handle_t)mhandle); } static const char * mac_bpf_name(uintptr_t mhandle) { return (mac_name((mac_handle_t)mhandle)); } static int mac_bpf_type(uintptr_t mhandle) { return (mac_nativetype((mac_handle_t)mhandle)); } static void mac_bpf_sdu_get(uintptr_t mhandle, uint_t *mtup) { mac_sdu_get((mac_handle_t)mhandle, NULL, mtup); } static int mac_bpf_tx(uintptr_t chandle, mblk_t *pkt) { /* * If the mac layer cannot deliver a packet as requested by BPF then * simply have the mac layer drop it. BPF isn't interested in doing * any amount of retry - that's left to the application. */ return (mac_tx((mac_client_handle_t)chandle, pkt, 0, MAC_DROP_ON_NO_DESC, NULL)); } static uintptr_t mac_bpf_promisc_add(uintptr_t chandle, int how, void *arg, uintptr_t *promisc, int flags) { return (mac_promisc_add((mac_client_handle_t)chandle, how, bpf_mtap, arg, (mac_promisc_handle_t *)promisc, flags)); } static void mac_bpf_promisc_remove(uintptr_t phandle) { mac_promisc_remove((mac_promisc_handle_t)phandle); } static int mac_bpf_client_open(uintptr_t mhandle, uintptr_t *chandlep) { return (mac_client_open((mac_handle_t)mhandle, (mac_client_handle_t *)chandlep, NULL, MAC_OPEN_FLAGS_USE_DATALINK_NAME)); } static void mac_bpf_client_close(uintptr_t chandle) { mac_client_close((mac_client_handle_t)chandle, 0); } static const char * mac_bpf_client_name(uintptr_t chandle) { return (mac_client_name((mac_client_handle_t)chandle)); } /*ARGSUSED*/ static int mac_bpf_getlinkid(const char *name, datalink_id_t *idp, zoneid_t zoneid) { int error; /* * If at first we don't succeed, try again, just in case it is in * hiding. The first call requires the datalink management daemon * (the authorative source of information about name to id mapping) * to be present and answering upcalls, the seond does not. */ error = dls_mgmt_get_linkid(name, idp); if (error != 0) error = dls_devnet_macname2linkid(name, idp); return (error); } static int mac_bpf_getzone(uintptr_t handle, zoneid_t *zip) { mac_perim_handle_t mph; int error; mac_perim_enter_by_mh((mac_handle_t)handle, &mph); error = dls_link_getzid(mac_name((mac_handle_t)handle), zip); mac_perim_exit(mph); return (error); } static int mac_bpf_getdlt(uintptr_t handle, uint_t *dltp) { *dltp = mac_nativetype((mac_handle_t)handle); return (0); }