Commit | Line | Data |
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92f1b170 TK |
1 | /************************************************* |
2 | * Exim - an Internet mail transport agent * | |
3 | *************************************************/ | |
4 | ||
5 | /* | |
6 | * Exim - SPF lookup module using libspf2 | |
7 | * ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ | |
8 | * | |
9 | * Copyright (c) 2005 Chris Webb, Arachsys Internet Services Ltd | |
10 | * | |
11 | * This program is free software; you can redistribute it and/or | |
12 | * modify it under the terms of the GNU General Public License | |
13 | * as published by the Free Software Foundation; either version 2 | |
14 | * of the License, or (at your option) any later version. | |
15 | * | |
80fea873 | 16 | * Copyright (c) The Exim Maintainers 2016 |
92f1b170 TK |
17 | */ |
18 | ||
19 | #include "../exim.h" | |
20 | ||
21 | #ifndef EXPERIMENTAL_SPF | |
e1d15f5e JH |
22 | static void dummy(int x); |
23 | static void dummy2(int x) { dummy(x-1); } | |
24 | static void dummy(int x) { dummy2(x-1); } | |
92f1b170 TK |
25 | #else |
26 | ||
27 | #include "lf_functions.h" | |
56dda33c TK |
28 | #ifndef HAVE_NS_TYPE |
29 | #define HAVE_NS_TYPE | |
30 | #endif | |
92f1b170 TK |
31 | #include <spf2/spf.h> |
32 | #include <spf2/spf_dns_resolv.h> | |
33 | #include <spf2/spf_dns_cache.h> | |
34 | ||
14b3c5bc JH |
35 | static void * |
36 | spf_open(uschar *filename, uschar **errmsg) | |
37 | { | |
92f1b170 TK |
38 | SPF_server_t *spf_server = NULL; |
39 | spf_server = SPF_server_new(SPF_DNS_CACHE, 0); | |
40 | if (spf_server == NULL) { | |
41 | *errmsg = US"SPF_server_new() failed"; | |
42 | return NULL; | |
43 | } | |
44 | return (void *) spf_server; | |
45 | } | |
46 | ||
14b3c5bc JH |
47 | static void |
48 | spf_close(void *handle) | |
49 | { | |
92f1b170 TK |
50 | SPF_server_t *spf_server = handle; |
51 | if (spf_server) SPF_server_free(spf_server); | |
52 | } | |
53 | ||
14b3c5bc | 54 | static int |
eac732ad | 55 | spf_find(void *handle, uschar *filename, const uschar *keystring, int key_len, |
14b3c5bc JH |
56 | uschar **result, uschar **errmsg, uint *do_cache) |
57 | { | |
92f1b170 TK |
58 | SPF_server_t *spf_server = handle; |
59 | SPF_request_t *spf_request = NULL; | |
60 | SPF_response_t *spf_response = NULL; | |
61 | ||
62 | spf_request = SPF_request_new(spf_server); | |
63 | if (spf_request == NULL) { | |
64 | *errmsg = US"SPF_request_new() failed"; | |
65 | return FAIL; | |
66 | } | |
67 | ||
ab75a2db | 68 | if (SPF_request_set_ipv4_str(spf_request, CS filename)) { |
92f1b170 TK |
69 | *errmsg = string_sprintf("invalid IP address '%s'", filename); |
70 | return FAIL; | |
71 | } | |
ab75a2db | 72 | if (SPF_request_set_env_from(spf_request, CS keystring)) { |
92f1b170 TK |
73 | *errmsg = string_sprintf("invalid envelope from address '%s'", keystring); |
74 | return FAIL; | |
75 | } | |
76 | ||
77 | SPF_request_query_mailfrom(spf_request, &spf_response); | |
78 | *result = string_copy(US SPF_strresult(SPF_response_result(spf_response))); | |
79 | SPF_response_free(spf_response); | |
80 | SPF_request_free(spf_request); | |
81 | return OK; | |
82 | } | |
83 | ||
6545de78 PP |
84 | |
85 | /************************************************* | |
86 | * Version reporting entry point * | |
87 | *************************************************/ | |
88 | ||
89 | /* See local README for interface description. */ | |
90 | ||
91 | #include "../version.h" | |
92 | ||
93 | void | |
94 | spf_version_report(FILE *f) | |
95 | { | |
96 | #ifdef DYNLOOKUP | |
97 | fprintf(f, "Library version: SPF: Exim version %s\n", EXIM_VERSION_STR); | |
98 | #endif | |
99 | } | |
100 | ||
101 | ||
e6d225ae DW |
102 | static lookup_info _lookup_info = { |
103 | US"spf", /* lookup name */ | |
104 | 0, /* not absfile, not query style */ | |
105 | spf_open, /* open function */ | |
106 | NULL, /* no check function */ | |
107 | spf_find, /* find function */ | |
108 | spf_close, /* close function */ | |
109 | NULL, /* no tidy function */ | |
6545de78 PP |
110 | NULL, /* no quoting function */ |
111 | spf_version_report /* version reporting */ | |
e6d225ae DW |
112 | }; |
113 | ||
114 | #ifdef DYNLOOKUP | |
115 | #define spf_lookup_module_info _lookup_module_info | |
116 | #endif | |
117 | ||
118 | static lookup_info *_lookup_list[] = { &_lookup_info }; | |
119 | lookup_module_info spf_lookup_module_info = { LOOKUP_MODULE_INFO_MAGIC, _lookup_list, 1 }; | |
120 | ||
92f1b170 | 121 | #endif /* EXPERIMENTAL_SPF */ |