| | 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 | |
| | 41 | #ifdef BSD_KERNEL_PRIVATE |
| | 42 | /* |
| | 43 | * Internal implementation bits |
| | 44 | */ |
| | 45 | #include <sys/kpi_socketfilter.h> |
| | 46 | |
| | 47 | struct socket; |
| | 48 | struct sockopt; |
| | 49 | |
| | 50 | /* Private, internal implementation functions */ |
| | 51 | extern void sflt_init(void); |
| | 52 | extern void sflt_initsock(struct socket *so); |
| | 53 | extern void sflt_termsock(struct socket *so); |
| | 54 | extern errno_t sflt_attach_internal(struct socket *so, sflt_handle handle); |
| | 55 | extern void sflt_notify(struct socket *so, sflt_event_t event, void *param); |
| | 56 | extern int sflt_ioctl(struct socket *so, u_long cmd, caddr_t data); |
| | 57 | extern int sflt_bind(struct socket *so, const struct sockaddr *nam); |
| | 58 | extern int sflt_listen(struct socket *so); |
| | 59 | extern int sflt_accept(struct socket *head, struct socket *so, |
| | 60 | const struct sockaddr *local, |
| | 61 | const struct sockaddr *remote); |
| | 62 | extern int sflt_getsockname(struct socket *so, struct sockaddr **local); |
| | 63 | extern int sflt_getpeername(struct socket *so, struct sockaddr **remote); |
| | 64 | extern int sflt_connectin(struct socket *head, |
| | 65 | const struct sockaddr *remote); |
| | 66 | extern int sflt_connectout(struct socket *so, const struct sockaddr *nam); |
| | 67 | extern int sflt_connectxout(struct socket *so, |
| | 68 | struct sockaddr_list **nam_sl); |
| | 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 */ |
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