1 | /* |
2 | * Copyright (c) 2000-2004 Apple Computer, Inc. All rights reserved. |
3 | * |
4 | * @APPLE_OSREFERENCE_LICENSE_HEADER_START@ |
5 | * |
6 | * This file contains Original Code and/or Modifications of Original Code |
7 | * as defined in and that are subject to the Apple Public Source License |
8 | * Version 2.0 (the 'License'). You may not use this file except in |
9 | * compliance with the License. The rights granted to you under the License |
10 | * may not be used to create, or enable the creation or redistribution of, |
11 | * unlawful or unlicensed copies of an Apple operating system, or to |
12 | * circumvent, violate, or enable the circumvention or violation of, any |
13 | * terms of an Apple operating system software license agreement. |
14 | * |
15 | * Please obtain a copy of the License at |
16 | * http://www.opensource.apple.com/apsl/ and read it before using this file. |
17 | * |
18 | * The Original Code and all software distributed under the License are |
19 | * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER |
20 | * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES, |
21 | * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY, |
22 | * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT. |
23 | * Please see the License for the specific language governing rights and |
24 | * limitations under the License. |
25 | * |
26 | * @APPLE_OSREFERENCE_LICENSE_HEADER_END@ |
27 | */ |
28 | /*! |
29 | * @header init.h |
30 | * This header defines an API to register a function that will be called when |
31 | * the network stack is being initialized. This gives a kernel extensions an |
32 | * opportunity to install filters before sockets are created and network |
33 | * operations occur. |
34 | */ |
35 | #ifndef _NET_INIT_H_ |
36 | #define _NET_INIT_H_ |
37 | #include <sys/kernel_types.h> |
38 | |
39 | /*! |
40 | * @typedef net_init_func_ptr |
41 | * @discussion net_init_func_ptr will be called once the networking stack |
42 | * initialized and before network operations occur. |
43 | */ |
44 | typedef void (*net_init_func_ptr)(void); |
45 | |
46 | /*! |
47 | * @function net_init_add |
48 | * @discussion Add a function to be called during network initialization. Your |
49 | * kext must not unload until the function you register is called if |
50 | * net_init_add returns success. |
51 | * @param init_func A pointer to a function to be called when the stack is |
52 | * initialized. |
53 | * @result EINVAL - the init_func value was NULL. |
54 | * EALREADY - the network has already been initialized |
55 | * ENOMEM - there was not enough memory to perform this operation |
56 | * 0 - success |
57 | */ |
58 | errno_t net_init_add(net_init_func_ptr init_func); |
59 | |
60 | #ifdef BSD_KERNEL_PRIVATE |
61 | /* net_init_run is called from bsd_init */ |
62 | extern void net_init_run(void); |
63 | #endif /* BSD_KERNEL_PRIVATE */ |
64 | |
65 | #endif /* _NET_INIT_H_ */ |
66 | |