xref: /xnu-10063.121.3/bsd/net/if_redirect.h (revision 2c2f96dc2b9a4408a43d3150ae9c105355ca3daa)
1 /*
2  * Copyright (c) 2022 Apple Computer, Inc. All rights reserved.
3  *
4  * @APPLE_OSREFERENCE_LICENSE_HEADER_START@
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6  * This file contains Original Code and/or Modifications of Original Code
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8  * Version 2.0 (the 'License'). You may not use this file except in
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15  * Please obtain a copy of the License at
16  * http://www.opensource.apple.com/apsl/ and read it before using this file.
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18  * The Original Code and all software distributed under the License are
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27  */
28 
29 #ifndef _NET_IF_REDIRECT_VAR_H_
30 #define _NET_IF_REDIRECT_VAR_H_     1
31 
32 #ifdef KERNEL_PRIVATE
33 __private_extern__ void if_redirect_init(void);
34 #endif /* KERNEL_PRIVATE */
35 
36 /* Arbitrary identifier for params type */
37 #define RD_CREATE_PARAMS_TYPE 0x2D27
38 
39 /*
40  * This lets us create an rd interface without auto-attaching fsw. Sometimes we
41  * need to be able to disable fsw auto-attachment, one example being skywalk
42  * unit tests (e.g. skt_xferrdudpping): rdar://109413097
43  */
44 #define RD_CREATE_PARAMS_TYPE_NOATTACH 0x2D28
45 
46 struct if_redirect_create_params {
47 	uint16_t ircp_type;
48 	uint16_t ircp_len;
49 	uint32_t ircp_ftype;
50 };
51 
52 /*
53  * SIOCSDRVSPEC
54  */
55 enum {
56 	RD_S_CMD_NONE              = 0,
57 	RD_S_CMD_SET_DELEGATE      = 1,
58 };
59 
60 struct if_redirect_request {
61 	uint64_t ifrr_reserved[4];
62 	union {
63 		char ifrru_buf[128];                /* stable size */
64 		char ifrru_delegate_name[IFNAMSIZ]; /* if name */
65 	} ifrr_u;
66 #define ifrr_delegate_name ifrr_u.ifrru_delegate_name
67 };
68 
69 #endif /* _NET_IF_REDIRECT_VAR_H_ */
70