1 /* $NetBSD: input_transp.c,v 1.1.1.1 2009/06/23 10:08:46 tron Exp $ */
2
3 /*++
4 /* NAME
5 /* input_transp 3
6 /* SUMMARY
7 /* receive transparency control
8 /* SYNOPSIS
9 /* #include <input_transp.h>
10 /*
11 /* int input_transp_mask(param_name, pattern)
12 /* const char *param_name;
13 /* const char *pattern;
14 /*
15 /* int input_transp_cleanup(cleanup_flags, transp_mask)
16 /* int cleanup_flags;
17 /* int transp_mask;
18 /* DESCRIPTION
19 /* This module controls how much processing happens before mail is
20 /* written to the Postfix queue. Each transparency option is either
21 /* implemented by a client of the cleanup service, or is passed
22 /* along in a client request to the cleanup service. This eliminates
23 /* the need to configure multiple cleanup service instances.
24 /*
25 /* input_transp_mask() takes a comma-separated list of names and
26 /* computes the corresponding mask. The following names are
27 /* recognized in \fBpattern\fR, with the corresponding bit mask
28 /* given in parentheses:
29 /* .IP "no_unknown_recipient_checks (INPUT_TRANSP_UNKNOWN_RCPT)"
30 /* Do not try to reject unknown recipients.
31 /* .IP "no_address_mappings (INPUT_TRANSP_ADDRESS_MAPPING)"
32 /* Disable canonical address mapping, virtual alias map expansion,
33 /* address masquerading, and automatic BCC recipients.
34 /* .IP "no_header_body_checks (INPUT_TRANSP_HEADER_BODY)"
35 /* Disable header/body_checks.
36 /* .IP "no_milters (INPUT_TRANSP_MILTER)"
37 /* Disable Milter applications.
38 /*
39 /* input_transp_cleanup() takes a bunch of cleanup processing
40 /* flags and updates them according to the settings in the
41 /* specified input transparency mask.
42 /* DIAGNOSTICS
43 /* Panic: inappropriate use.
44 /* LICENSE
45 /* .ad
46 /* .fi
47 /* The Secure Mailer license must be distributed with this software.
48 /* AUTHOR(S)
49 /* Wietse Venema
50 /* IBM T.J. Watson Research
51 /* P.O. Box 704
52 /* Yorktown Heights, NY 10598, USA
53 /*--*/
54
55 /* System library. */
56
57 #include <sys_defs.h>
58
59 /* Utility library. */
60
61 #include <name_mask.h>
62 #include <msg.h>
63
64 /* Global library. */
65
66 #include <mail_params.h>
67 #include <cleanup_user.h>
68 #include <input_transp.h>
69
70 /* input_transp_mask - compute mail receive transparency mask */
71
input_transp_mask(const char * param_name,const char * pattern)72 int input_transp_mask(const char *param_name, const char *pattern)
73 {
74 static const NAME_MASK table[] = {
75 "no_unknown_recipient_checks", INPUT_TRANSP_UNKNOWN_RCPT,
76 "no_address_mappings", INPUT_TRANSP_ADDRESS_MAPPING,
77 "no_header_body_checks", INPUT_TRANSP_HEADER_BODY,
78 "no_milters", INPUT_TRANSP_MILTER,
79 0,
80 };
81
82 return (name_mask(param_name, table, pattern));
83 }
84
85 /* input_transp_cleanup - adjust cleanup options */
86
input_transp_cleanup(int cleanup_flags,int transp_mask)87 int input_transp_cleanup(int cleanup_flags, int transp_mask)
88 {
89 const char *myname = "input_transp_cleanup";
90
91 if (msg_verbose)
92 msg_info("before %s: cleanup flags = %s",
93 myname, cleanup_strflags(cleanup_flags));
94 if (transp_mask & INPUT_TRANSP_ADDRESS_MAPPING)
95 cleanup_flags &= ~(CLEANUP_FLAG_BCC_OK | CLEANUP_FLAG_MAP_OK);
96 if (transp_mask & INPUT_TRANSP_HEADER_BODY)
97 cleanup_flags &= ~CLEANUP_FLAG_FILTER;
98 if (transp_mask & INPUT_TRANSP_MILTER)
99 cleanup_flags &= ~CLEANUP_FLAG_MILTER;
100 if (msg_verbose)
101 msg_info("after %s: cleanup flags = %s",
102 myname, cleanup_strflags(cleanup_flags));
103 return (cleanup_flags);
104 }
105