xnu-2050.7.9.tar.gz

[apple/xnu.git] / bsd / net / iptap.h

diff --git a/bsd/net/iptap.h b/bsd/net/iptap.h
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+/*
+ * Copyright (c) 1999-2010 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@
+ */
+#ifndef IPTAP_H
+#define IPTAP_H
+
+#include <net/if.h>
+
+#define IPTAP_CONTROL_NAME "com.apple.net.iptap_control"
+
+#define IPTAP_BUFFERSZ (128 * 1024)
+#define IPTAP_VERSION_1                0x1
+
+enum {
+       IPTAP_OUTPUT_TAG        =       0x01,
+       IPTAP_INPUT_TAG         =       0x10,
+       IPTAP_UNKNOWN_TAG       =       0x11
+};
+
+#pragma pack(push)
+#pragma pack(1)
+
+typedef struct iptap_hdr_t {
+       uint32_t        hdr_length;
+       uint8_t         version;
+       uint32_t        length;
+       uint8_t         type;
+       uint16_t        unit;
+       uint8_t         io;
+       uint32_t        protocol_family;
+       uint32_t        frame_pre_length;
+       uint32_t        frame_pst_length;
+       char            if_name[IFNAMSIZ];
+} __attribute__ ((__packed__)) iptap_hdr_t;
+
+#pragma pack(pop)
+
+#ifdef KERNEL_PRIVATE
+
+extern void iptap_init(void);
+extern void iptap_ipf_input(struct ifnet *, protocol_family_t, struct mbuf *, char *);
+extern void iptap_ipf_output(struct ifnet *, protocol_family_t, struct mbuf *, u_int32_t, u_int32_t);
+#if 0
+extern void iptap_destroy(void);
+#endif
+
+#endif /* KERNEL_PRIVATE */
+#endif /* IPTAP_H */
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