/* * Copyright (c) 2009 Apple Inc. All rights reserved. * * @APPLE_OSREFERENCE_LICENSE_HEADER_START@ * * This file contains Original Code and/or Modifications of Original Code * as defined in and that are subject to the Apple Public Source License * Version 2.0 (the 'License'). You may not use this file except in * compliance with the License. The rights granted to you under the License * may not be used to create, or enable the creation or redistribution of, * unlawful or unlicensed copies of an Apple operating system, or to * circumvent, violate, or enable the circumvention or violation of, any * terms of an Apple operating system software license agreement. * * Please obtain a copy of the License at * http://www.opensource.apple.com/apsl/ and read it before using this file. * * The Original Code and all software distributed under the License are * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES, * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY, * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT. * Please see the License for the specific language governing rights and * limitations under the License. * * @APPLE_OSREFERENCE_LICENSE_HEADER_END@ */ /* * Copyright (c) 1999 Apple Computer, Inc. * * Data Link Inteface Layer * Author: Ted Walker */ #ifndef DLIL_H #define DLIL_H #ifdef KERNEL #include <sys/kernel_types.h> #include <net/kpi_interface.h> enum { BPF_TAP_DISABLE, BPF_TAP_INPUT, BPF_TAP_OUTPUT, BPF_TAP_INPUT_OUTPUT }; /* Ethernet specific types */ #define DLIL_DESC_ETYPE2 4 #define DLIL_DESC_SAP 5 #define DLIL_DESC_SNAP 6 /* * DLIL_DESC_ETYPE2 - native_type must point to 2 byte ethernet raw protocol, * variants.native_type_length must be set to 2 * DLIL_DESC_SAP - native_type must point to 3 byte SAP protocol * variants.native_type_length must be set to 3 * DLIL_DESC_SNAP - native_type must point to 5 byte SNAP protocol * variants.native_type_length must be set to 5 * * All protocols must be in Network byte order. * * Future interface families may define more protocol types they know about. * The type implies the offset and context of the protocol data at native_type. * The length of the protocol data specified at native_type must be set in * variants.native_type_length. */ #ifdef KERNEL_PRIVATE #include <net/if.h> #include <net/if_var.h> #include <sys/kern_event.h> #include <kern/thread.h> #include <kern/locks.h> #if __STDC__ struct ifnet; struct mbuf; struct ether_header; struct sockaddr_dl; #endif #ifdef BSD_KERNEL_PRIVATE struct ifnet_stat_increment_param; struct iff_filter; struct dlil_threading_info { mbuf_t mbuf_head; /* start of mbuf list from if */ mbuf_t mbuf_tail; u_int32_t mbuf_count; boolean_t net_affinity; /* affinity set is available */ u_int32_t input_waiting; /* DLIL condition of thread */ struct thread *input_thread; /* thread data for this input */ struct thread *workloop_thread; /* current workloop thread */ u_int32_t tag; /* current affinity tag */ lck_mtx_t *input_lck; lck_grp_t *lck_grp; /* lock group (for lock stats) */ char input_name[32]; #if IFNET_INPUT_SANITY_CHK u_int32_t input_wake_cnt; /* number of times the thread was awaken with packets to process */ u_long input_mbuf_cnt; /* total number of mbuf packets processed by this thread */ #endif }; /* The following are shared with kpi_protocol.c so that it may wakeup the input thread to run through packets queued for protocol input. */ #define DLIL_INPUT_RUNNING 0x80000000 #define DLIL_INPUT_WAITING 0x40000000 #define DLIL_PROTO_REGISTER 0x20000000 #define DLIL_PROTO_WAITING 0x10000000 #define DLIL_INPUT_TERMINATE 0x08000000 void dlil_init(void); errno_t dlil_set_bpf_tap(ifnet_t ifp, bpf_tap_mode mode, bpf_packet_func callback); /* * Send arp internal bypasses the check for * IPv4LL. */ errno_t dlil_send_arp_internal( ifnet_t ifp, u_int16_t arpop, const struct sockaddr_dl* sender_hw, const struct sockaddr* sender_proto, const struct sockaddr_dl* target_hw, const struct sockaddr* target_proto); int dlil_output( ifnet_t ifp, protocol_family_t proto_family, mbuf_t packetlist, void *route, const struct sockaddr *dest, int raw); errno_t dlil_resolve_multi( struct ifnet *ifp, const struct sockaddr *proto_addr, struct sockaddr *ll_addr, size_t ll_len); errno_t dlil_send_arp( ifnet_t ifp, u_int16_t arpop, const struct sockaddr_dl* sender_hw, const struct sockaddr* sender_proto, const struct sockaddr_dl* target_hw, const struct sockaddr* target_proto); int dlil_attach_filter(ifnet_t ifp, const struct iff_filter *if_filter, interface_filter_t *filter_ref); void dlil_detach_filter(interface_filter_t filter); int dlil_detach_protocol(ifnet_t ifp, u_int32_t protocol); extern void dlil_proto_unplumb_all(ifnet_t); #endif /* BSD_KERNEL_PRIVATE */ void dlil_post_msg(struct ifnet *ifp,u_int32_t event_subclass, u_int32_t event_code, struct net_event_data *event_data, u_int32_t event_data_len); /* * dlil_if_acquire is obsolete. Use ifnet_allocate. */ int dlil_if_acquire(u_int32_t family, const void *uniqueid, size_t uniqueid_len, struct ifnet **ifp); /* * dlil_if_release is obsolete. The equivalent is called automatically when * an interface is detached. */ void dlil_if_release(struct ifnet *ifp); #if IFNET_ROUTE_REFCNT extern u_int32_t ifnet_aggressive_drainers; #endif /* IFNET_ROUTE_REFCNT */ #endif /* KERNEL_PRIVATE */ #endif /* KERNEL */ #endif /* DLIL_H */