1 | /* |
2 | * Copyright (c) 1999-2013 Apple 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 | /* |
30 | * Support for socket filter kernel extensions |
31 | */ |
32 | |
33 | #ifndef NET_KEXT_NET_H |
34 | #define NET_KEXT_NET_H |
35 | |
36 | #include <sys/appleapiopts.h> |
37 | |
38 | #include <sys/queue.h> |
39 | #include <sys/cdefs.h> |
40 | #include <sys/types.h> |
41 | |
42 | #ifdef BSD_KERNEL_PRIVATE |
43 | /* |
44 | * Internal implementation bits |
45 | */ |
46 | #include <sys/kpi_socketfilter.h> |
47 | |
48 | struct socket; |
49 | struct sockopt; |
50 | struct inpcb; |
51 | |
52 | /* Private, internal implementation functions */ |
53 | extern int sflt_permission_check(struct inpcb *inp); |
54 | extern void sflt_initsock(struct socket *so); |
55 | extern void sflt_termsock(struct socket *so); |
56 | extern errno_t sflt_attach_internal(struct socket *so, sflt_handle handle); |
57 | extern void sflt_notify(struct socket *so, sflt_event_t event, void *param); |
58 | extern int sflt_ioctl(struct socket *so, u_long cmd, caddr_t data); |
59 | extern int sflt_bind(struct socket *so, const struct sockaddr *nam); |
60 | extern int sflt_listen(struct socket *so); |
61 | extern int sflt_accept(struct socket *head, struct socket *so, |
62 | const struct sockaddr *local, |
63 | const struct sockaddr *remote); |
64 | extern int sflt_getsockname(struct socket *so, struct sockaddr **local); |
65 | extern int sflt_getpeername(struct socket *so, struct sockaddr **remote); |
66 | extern int sflt_connectin(struct socket *head, |
67 | const struct sockaddr *remote); |
68 | extern int sflt_connectout(struct socket *so, const struct sockaddr *nam); |
69 | extern int sflt_setsockopt(struct socket *so, struct sockopt *sopt); |
70 | extern int sflt_getsockopt(struct socket *so, struct sockopt *sopt); |
71 | extern int sflt_data_out(struct socket *so, const struct sockaddr *to, |
72 | mbuf_t *data, mbuf_t *control, sflt_data_flag_t flags); |
73 | extern int sflt_data_in(struct socket *so, const struct sockaddr *from, |
74 | mbuf_t *data, mbuf_t *control, sflt_data_flag_t flags); |
75 | |
76 | #endif /* BSD_KERNEL_PRIVATE */ |
77 | |
78 | #define NFF_BEFORE 0x01 |
79 | #define NFF_AFTER 0x02 |
80 | |
81 | #define NKE_OK 0 |
82 | #define NKE_REMOVE (-1) |
83 | |
84 | /* |
85 | * Interface structure for inserting an installed socket NKE into an |
86 | * existing socket. |
87 | * 'handle' is the NKE to be inserted, 'where' is an insertion point, |
88 | * and flags dictate the position of the to-be-inserted NKE relative to |
89 | * the 'where' NKE. If the latter is NULL, the flags indicate "first" |
90 | * or "last" |
91 | */ |
92 | #pragma pack(4) |
93 | |
94 | struct so_nke { |
95 | unsigned int nke_handle; |
96 | unsigned int nke_where; |
97 | int nke_flags; /* NFF_BEFORE, NFF_AFTER: net/kext_net.h */ |
98 | u_int32_t reserved[4]; /* for future use */ |
99 | }; |
100 | |
101 | #pragma pack() |
102 | #endif /* NET_KEXT_NET_H */ |
103 | |