/*
- * Copyright (c) 2000 Apple Computer, Inc. All rights reserved.
+ * Copyright (c) 1999-2010 Apple Inc. All rights reserved.
*
- * @APPLE_LICENSE_HEADER_START@
+ * @APPLE_OSREFERENCE_LICENSE_HEADER_START@
*
- * The contents of this file constitute Original Code as defined in and
- * are subject to the Apple Public Source License Version 1.1 (the
- * "License"). You may not use this file except in compliance with the
- * License. Please obtain a copy of the License at
- * http://www.apple.com/publicsource and read it before using this file.
+ * 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.
*
- * This Original Code and all software distributed under the License are
- * distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY KIND, EITHER
+ * 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 OR NON-INFRINGEMENT. Please see the
- * License for the specific language governing rights and limitations
- * under the License.
+ * 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_LICENSE_HEADER_END@
- */
-/*
- * Copyright (c) 1999 Apple Computer, Inc.
- *
- * Data Link Inteface Layer
- * Author: Ted Walker
+ * @APPLE_OSREFERENCE_LICENSE_HEADER_END@
*/
-
-
#ifndef DLIL_H
#define DLIL_H
+#ifdef KERNEL
-#if __STDC__
-
-struct ifnet;
-struct mbuf;
-struct ether_header;
-
-#endif
-
-
-
-#define DLIL_LAST_FILTER -1
-#define DLIL_NULL_FILTER -2
-
-#define DLIL_WAIT_FOR_FREE -2
-
-#define DLIL_BLUEBOX 1
-
-
-
-#include <net/if.h>
-#include <net/if_var.h>
-#include <sys/kern_event.h>
+#include <sys/kernel_types.h>
+#include <net/kpi_interface.h>
enum {
BPF_TAP_DISABLE,
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.
+ */
-struct dl_tag_attr_str {
- u_long dl_tag;
- short if_flags;
- short if_unit;
- u_long if_family;
- u_long protocol_family;
-};
-
-
-struct dlil_pr_flt_str {
- caddr_t cookie;
-
- int (*filter_dl_input)(caddr_t cookie,
- struct mbuf **m,
- char **frame_header,
- struct ifnet **ifp);
-
-
- int (*filter_dl_output)(caddr_t cookie,
- struct mbuf **m,
- struct ifnet **ifp,
- struct sockaddr **dest,
- char *dest_linkaddr,
- char *frame_type);
-
- int (*filter_dl_event)(caddr_t cookie,
- struct kern_event_msg *event_msg);
-
- int (*filter_dl_ioctl)(caddr_t cookie,
- struct ifnet *ifp,
- u_long ioctl_cmd,
- caddr_t ioctl_arg);
-
- int (*filter_detach)(caddr_t cookie);
-};
-
-struct dlil_if_flt_str {
- caddr_t cookie;
- int (*filter_if_input)(caddr_t cookie,
- struct ifnet **ifnet_ptr,
- struct mbuf **mbuf_ptr,
- char **frame_ptr);
-
- int (*filter_if_event)(caddr_t cookie,
- struct ifnet **ifnet_ptr,
- struct kern_event_msg **event_msg_ptr);
-
- int (*filter_if_output)(caddr_t cookie,
- struct ifnet **ifnet_ptr,
- struct mbuf **mbuf_ptr);
-
-
- int (*filter_if_ioctl)(caddr_t cookie,
- struct ifnet *ifnet_ptr,
- u_long ioctl_code_ptr,
- caddr_t ioctl_arg_ptr);
-
- int (*filter_if_free)(caddr_t cookie,
- struct ifnet *ifnet_ptr);
-
- int (*filter_detach)(caddr_t cookie);
-};
-
-
-#define DLIL_PR_FILTER 1
-#define DLIL_IF_FILTER 2
-
-
-
-typedef int (*dl_input_func)(struct mbuf *m, char *frame_header,
- struct ifnet *ifp, u_long dl_tag, int sync_ok);
-typedef int (*dl_pre_output_func)(struct ifnet *ifp,
- struct mbuf **m,
- struct sockaddr *dest,
- caddr_t route_entry,
- char *frame_type,
- char *dst_addr,
- u_long dl_tag);
-
-typedef int (*dl_event_func)(struct kern_event_msg *event,
- u_long dl_tag);
-
-typedef int (*dl_offer_func)(struct mbuf *m, char *frame_header);
-typedef int (*dl_ioctl_func)(u_long dl_tag,
- struct ifnet *ifp,
- u_long ioctl_cmd,
- caddr_t ioctl_arg);
-
-
-
-struct dlil_filterq_entry {
- TAILQ_ENTRY(dlil_filterq_entry) que;
- u_long filter_id;
- int type;
- union {
- struct dlil_if_flt_str if_filter;
- struct dlil_pr_flt_str pr_filter;
- } variants;
-};
-
-
-TAILQ_HEAD(dlil_filterq_head, dlil_filterq_entry);
-
-
-struct if_proto {
- TAILQ_ENTRY(if_proto) next;
- u_long dl_tag;
- struct dlil_filterq_head pr_flt_head;
- struct ifnet *ifp;
- dl_input_func dl_input;
- dl_pre_output_func dl_pre_output;
- dl_event_func dl_event;
- dl_offer_func dl_offer;
- dl_ioctl_func dl_ioctl;
- u_long protocol_family;
-
-};
-
-TAILQ_HEAD(dlil_proto_head, if_proto);
-
-struct dlil_tag_list_entry {
- TAILQ_ENTRY(dlil_tag_list_entry) next;
- struct ifnet *ifp;
- u_long dl_tag;
-};
-
-
-#define DLIL_DESC_RAW 1
-#define DLIL_DESC_802_2 2
-#define DLIL_DESC_802_2_SNAP 3
-
-struct dlil_demux_desc {
- TAILQ_ENTRY(dlil_demux_desc) next;
- int type;
-
- u_char *native_type;
- union {
- struct {
- u_long proto_id_length; /* IN LONGWORDS!!! */
- u_char *proto_id;
- u_char *proto_id_mask;
-
- } bitmask;
+#ifdef KERNEL_PRIVATE
- struct {
- u_char dsap;
- u_char ssap;
- u_char control_code;
- u_char pad;
- } desc_802_2;
+#include <net/if.h>
+#include <net/if_var.h>
+#include <sys/kern_event.h>
+#include <kern/thread.h>
+#include <kern/locks.h>
- struct {
- u_char dsap;
- u_char ssap;
- u_char control_code;
- u_char org[3];
- u_short protocol_type;
- } desc_802_2_SNAP;
- } variants;
-};
+#if __STDC__
-TAILQ_HEAD(ddesc_head_str, dlil_demux_desc);
+struct ifnet;
+struct mbuf;
+struct ether_header;
+struct sockaddr_dl;
+#endif
-struct dlil_proto_reg_str {
- struct ddesc_head_str demux_desc_head;
- u_long interface_family;
- u_long protocol_family;
- short unit_number;
- int default_proto; /* 0 or 1 */
- dl_input_func input;
- dl_pre_output_func pre_output;
- dl_event_func event;
- dl_offer_func offer;
- dl_ioctl_func ioctl;
+struct iff_filter;
+
+#define DLIL_THREADNAME_LEN 32
+
+struct dlil_threading_info {
+ decl_lck_mtx_data(, input_lck);
+ lck_grp_t *lck_grp; /* lock group (for lock stats) */
+ 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 */
+ char input_name[DLIL_THREADNAME_LEN];
+#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
-int dlil_attach_interface_filter(struct ifnet *ifnet_ptr,
- struct dlil_if_flt_str *interface_filter,
- u_long *filter_id,
- int insertion_point);
-
-int
-dlil_input(struct ifnet *ifp, struct mbuf *m_head, struct mbuf *m_tail);
-
-int
-dlil_output(u_long dl_tag,
- struct mbuf *m,
- caddr_t route,
- struct sockaddr *dest,
- int raw);
-
-
-int
-dlil_ioctl(u_long proto_family,
- struct ifnet *ifp,
- u_long ioctl_code,
- caddr_t ioctl_arg);
-
-int
-dlil_attach_protocol(struct dlil_proto_reg_str *proto,
- u_long *dl_tag);
-
-int
-dlil_detach_protocol(u_long dl_tag);
-
-int
-dlil_if_attach(struct ifnet *ifp);
-
-int
-dlil_attach_protocol_filter(u_long dl_tag,
- struct dlil_pr_flt_str *proto_filter,
- u_long *filter_id,
- int insertion_point);
-int
-dlil_detach_filter(u_long filter_id);
+extern void dlil_init(void);
-struct dlil_ifmod_reg_str {
- int (*add_if)(struct ifnet *ifp);
- int (*del_if)(struct ifnet *ifp);
- int (*add_proto)(struct ddesc_head_str *demux_desc_head,
- struct if_proto *proto, u_long dl_tag);
- int (*del_proto)(struct if_proto *proto, u_long dl_tag);
- int (*ifmod_ioctl)(struct ifnet *ifp, u_long ioctl_cmd, caddr_t data);
- int (*shutdown)();
-};
+extern errno_t dlil_set_bpf_tap(ifnet_t, bpf_tap_mode, bpf_packet_func);
+/*
+ * Send arp internal bypasses the check for IPv4LL.
+ */
+extern errno_t dlil_send_arp_internal(ifnet_t, u_int16_t,
+ const struct sockaddr_dl *, const struct sockaddr *,
+ const struct sockaddr_dl *, const struct sockaddr *);
-int dlil_reg_if_modules(u_long interface_family,
- struct dlil_ifmod_reg_str *ifmod_reg);
+extern int dlil_output(ifnet_t, protocol_family_t, mbuf_t, void *,
+ const struct sockaddr *, int);
-int
-dlil_inject_if_input(struct mbuf *m, char *frame_header, u_long from_id);
+extern void dlil_input_packet_list(struct ifnet *, struct mbuf *);
-int
-dlil_inject_pr_input(struct mbuf *m, char *frame_header, u_long from_id);
+extern errno_t dlil_resolve_multi(struct ifnet *,
+ const struct sockaddr *, struct sockaddr *, size_t);
-int
-dlil_inject_pr_output(struct mbuf *m,
- struct sockaddr *dest,
- int raw,
- char *frame_type,
- char *dst_linkaddr,
- u_long from_id);
+extern errno_t dlil_send_arp(ifnet_t, u_int16_t, const struct sockaddr_dl *,
+ const struct sockaddr *, const struct sockaddr_dl *,
+ const struct sockaddr *);
-int
-dlil_inject_if_output(struct mbuf *m, u_long from_id);
+extern int dlil_attach_filter(ifnet_t, const struct iff_filter *,
+ interface_filter_t *);
+extern void dlil_detach_filter(interface_filter_t);
-int
-dlil_find_dltag(u_long if_family, short unit, u_long proto_family, u_long *dl_tag);
+extern void dlil_proto_unplumb_all(ifnet_t);
+extern void dlil_post_msg(struct ifnet *, u_int32_t, u_int32_t,
+ struct net_event_data *, u_int32_t);
-int
-dlil_event(struct ifnet *ifp, struct kern_event_msg *event);
+/*
+ * dlil_if_acquire is obsolete. Use ifnet_allocate.
+ */
+extern int dlil_if_acquire(u_int32_t, const void *, size_t, struct ifnet **);
+/*
+ * dlil_if_release is obsolete. The equivalent is called automatically when
+ * an interface is detached.
+ */
+extern void dlil_if_release(struct ifnet *ifp);
-int dlil_dereg_if_modules(u_long interface_family);
+extern u_int32_t ifnet_aggressive_drainers;
-int
-dlil_if_detach(struct ifnet *ifp);
+extern errno_t dlil_if_ref(struct ifnet *);
+extern errno_t dlil_if_free(struct ifnet *);
+#endif /* KERNEL_PRIVATE */
+#endif /* KERNEL */
#endif /* DLIL_H */
projects / apple / xnu.git / blobdiff