![[BACK]](/cvsweb/icons/back.gif){kind=icon}
Return to ip_proxy.h CVS log ![[TXT]](/cvsweb/icons/text.gif){kind=icon}
![[DIR]](/cvsweb/icons/dir.gif){kind=icon}
Up to [Apple XNU] / XNU / bsd / netinet|
Return to ip_proxy.h CVS log | Up to [Apple XNU] / XNU / bsd / netinet |
1.1 root 1: /*
2: * Copyright (c) 2000 Apple Computer, Inc. All rights reserved.
3: *
4: * @APPLE_LICENSE_HEADER_START@
5: *
6: * The contents of this file constitute Original Code as defined in and
7: * are subject to the Apple Public Source License Version 1.1 (the
8: * "License"). You may not use this file except in compliance with the
9: * License. Please obtain a copy of the License at
10: * http://www.apple.com/publicsource and read it before using this file.
11: *
12: * This Original Code and all software distributed under the License are
13: * distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY KIND, EITHER
14: * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
15: * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
16: * FITNESS FOR A PARTICULAR PURPOSE OR NON-INFRINGEMENT. Please see the
17: * License for the specific language governing rights and limitations
18: * under the License.
19: *
20: * @APPLE_LICENSE_HEADER_END@
21: */
22: /*
23: * Copyright (C) 1997 by Darren Reed.
24: *
25: * Redistribution and use in source and binary forms are permitted
26: * provided that this notice is preserved and due credit is given
27: * to the original author and the contributors.
28: *
29: */
30:
31: #ifndef __IP_PROXY_H__
32: #define __IP_PROXY_H__
33:
34: #ifndef SOLARIS
35: #define SOLARIS (defined(sun) && (defined(__svr4__) || defined(__SVR4)))
36: #endif
37:
38: #ifndef APR_LABELLEN
39: #define APR_LABELLEN 16
40: #endif
41: #define AP_SESS_SIZE 53
42:
43: struct nat;
44: struct ipnat;
45:
46: typedef struct ap_tcp {
47: u_short apt_sport; /* source port */
48: u_short apt_dport; /* destination port */
49: short apt_sel; /* seqoff/after set selector */
50: short apt_seqoff[2]; /* sequence # difference */
51: tcp_seq apt_after[2]; /* don't change seq-off until after this */
52: u_char apt_state[2]; /* connection state */
53: } ap_tcp_t;
54:
55: typedef struct ap_udp {
56: u_short apu_sport; /* source port */
57: u_short apu_dport; /* destination port */
58: } ap_udp_t;
59:
60: typedef struct ap_session {
61: struct aproxy *aps_apr;
62: struct in_addr aps_src; /* source IP# */
63: struct in_addr aps_dst; /* destination IP# */
64: u_char aps_p; /* protocol */
65: union {
66: struct ap_tcp apu_tcp;
67: struct ap_udp apu_udp;
68: } aps_un;
69: u_int aps_flags;
70: QUAD_T aps_bytes; /* bytes sent */
71: QUAD_T aps_pkts; /* packets sent */
72: u_long aps_tout; /* time left before expiring */
73: void *aps_data; /* private data */
74: int aps_psiz; /* size of private data */
75: struct ap_session *aps_next;
76: } ap_session_t ;
77:
78: #define aps_sport aps_un.apu_tcp.apt_sport
79: #define aps_dport aps_un.apu_tcp.apt_dport
80: #define aps_sel aps_un.apu_tcp.apt_sel
81: #define aps_seqoff aps_un.apu_tcp.apt_seqoff
82: #define aps_after aps_un.apu_tcp.apt_after
83: #define aps_state aps_un.apu_tcp.apt_state
84:
85:
86: typedef struct aproxy {
87: char apr_label[APR_LABELLEN]; /* Proxy label # */
88: u_char apr_p; /* protocol */
89: int apr_ref; /* +1 per rule referencing it */
90: int apr_flags;
91: int (* apr_init) __P((fr_info_t *, ip_t *, tcphdr_t *,
92: ap_session_t *, struct nat *));
93: int (* apr_inpkt) __P((fr_info_t *, ip_t *, tcphdr_t *,
94: ap_session_t *, struct nat *));
95: int (* apr_outpkt) __P((fr_info_t *, ip_t *, tcphdr_t *,
96: ap_session_t *, struct nat *));
97: } aproxy_t;
98:
99: #define APR_DELETE 1
100:
101:
102: extern ap_session_t *ap_sess_tab[AP_SESS_SIZE];
103: extern aproxy_t ap_proxies[];
104:
105: extern int ap_ok __P((ip_t *, tcphdr_t *, struct ipnat *));
106: extern void ap_unload __P((void));
107: extern void ap_free __P((aproxy_t *));
108: extern void aps_free __P((ap_session_t *));
109: extern int ap_check __P((ip_t *, tcphdr_t *, fr_info_t *, struct nat *));
110: extern aproxy_t *ap_match __P((u_char, char *));
111: extern void ap_expire __P((void));
112:
113: #endif /* __IP_PROXY_H__ */
This archive runs on limited infrastructure. Preserving old code on modern bandwidth. Automated agents are requested to crawl responsibly.