SPF: additional debug

[users/heiko/exim.git] / src / src / lookups / spf.c

diff --git a/src/src/lookups/spf.c b/src/src/lookups/spf.c
index 2ca4bbab4b5bdb5484d779505e8c7a7c3941801b..c84b6bbceef3bffb8c1cb4fd8f2f0d038c9e2832 100644 (file)
--- a/src/src/lookups/spf.c
+++ b/src/src/lookups/spf.c
@@ -1,79 +1,141 @@
-/* $Cambridge: exim/src/src/lookups/spf.c,v 1.3 2009/11/11 14:43:28 nm4 Exp $ */
-

 /*************************************************
 *     Exim - an Internet mail transport agent    *
 *************************************************/
 
 /*************************************************
 *     Exim - an Internet mail transport agent    *
 *************************************************/
 

-/*
- * Exim - SPF lookup module using libspf2
- * ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
- *
- * Copyright (c) 2005 Chris Webb, Arachsys Internet Services Ltd
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License
- * as published by the Free Software Foundation; either version 2
- * of the License, or (at your option) any later version.
- *
- */
+/* Exim - SPF lookup module using libspf2
+   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+
+Copyright (c) 2005 Chris Webb, Arachsys Internet Services Ltd
+
+This program is free software; you can redistribute it and/or
+modify it under the terms of the GNU General Public License
+as published by the Free Software Foundation; either version 2
+of the License, or (at your option) any later version.
+
+Copyright (c) The Exim Maintainers 2020
+*/

 
 #include "../exim.h"
 
 
 #include "../exim.h"
 

-#ifndef EXPERIMENTAL_SPF
-static void dummy(int x) { dummy(x-1); }
+#ifndef SUPPORT_SPF
+static void dummy(int x);
+static void dummy2(int x) { dummy(x-1); }
+static void dummy(int x) { dummy2(x-1); }

 #else
 
 #include "lf_functions.h"
 #else
 
 #include "lf_functions.h"

-#ifndef HAVE_NS_TYPE
-#define HAVE_NS_TYPE
+#if !defined(HAVE_NS_TYPE) && defined(NS_INADDRSZ)
+# define HAVE_NS_TYPE

 #endif
 #include <spf2/spf.h>
 #include <spf2/spf_dns_resolv.h>
 #include <spf2/spf_dns_cache.h>
 
 #endif
 #include <spf2/spf.h>
 #include <spf2/spf_dns_resolv.h>
 #include <spf2/spf_dns_cache.h>
 

-static void *spf_open(uschar *filename, uschar **errmsg) {
-  SPF_server_t *spf_server = NULL;
-  spf_server = SPF_server_new(SPF_DNS_CACHE, 0);
-  if (spf_server == NULL) {
-    *errmsg = US"SPF_server_new() failed";
-    return NULL;
+extern SPF_dns_server_t * SPF_dns_exim_new(int);
+
+
+static void *
+spf_open(uschar *filename, uschar **errmsg)
+{
+SPF_dns_server_t * dc;
+SPF_server_t *spf_server = NULL;
+int debug = 0;
+
+DEBUG(D_lookup) debug = 1;
+
+if ((dc = SPF_dns_exim_new(debug)))
+  if ((dc = SPF_dns_cache_new(dc, NULL, debug, 8)))
+    spf_server = SPF_server_new_dns(dc, debug);
+
+if (!spf_server)
+  {
+  *errmsg = US"SPF_dns_exim_nnew() failed";
+  return NULL;

   }
   }

-  return (void *) spf_server;
+return (void *) spf_server;

 }
 
 }
 

-static void spf_close(void *handle) {
-  SPF_server_t *spf_server = handle;
-  if (spf_server) SPF_server_free(spf_server);
+
+static void
+spf_close(void *handle)
+{
+SPF_server_t *spf_server = handle;
+if (spf_server) SPF_server_free(spf_server);

 }
 
 }
 

-static int spf_find(void *handle, uschar *filename, uschar *keystring, int key_len,
-             uschar **result, uschar **errmsg, BOOL *do_cache) {
-  SPF_server_t *spf_server = handle;
-  SPF_request_t *spf_request = NULL;
-  SPF_response_t *spf_response = NULL;
+static int
+spf_find(void *handle, uschar *filename, const uschar *keystring, int key_len,
+             uschar **result, uschar **errmsg, uint *do_cache)
+{
+SPF_server_t *spf_server = handle;
+SPF_request_t *spf_request;
+SPF_response_t *spf_response = NULL;

 
 

-  spf_request = SPF_request_new(spf_server);
-  if (spf_request == NULL) {
-    *errmsg = US"SPF_request_new() failed";
-    return FAIL;
+if (!(spf_request = SPF_request_new(spf_server)))
+  {
+  *errmsg = US"SPF_request_new() failed";
+  return FAIL;

   }
 
   }
 

-  if (SPF_request_set_ipv4_str(spf_request, CS filename)) {
-    *errmsg = string_sprintf("invalid IP address '%s'", filename);
+#if HAVE_IPV6
+switch (string_is_ip_address(filename, NULL))
+#else
+switch (4)
+#endif
+  {
+  case 4:
+    if (!SPF_request_set_ipv4_str(spf_request, CS filename))
+      break;
+    *errmsg = string_sprintf("invalid IPv4 address '%s'", filename);

     return FAIL;
     return FAIL;

-  }
-  if (SPF_request_set_env_from(spf_request, CS keystring)) {
-    *errmsg = string_sprintf("invalid envelope from address '%s'", keystring);
+#if HAVE_IPV6
+
+  case 6:
+    if (!SPF_request_set_ipv6_str(spf_request, CS filename))
+      break;
+    *errmsg = string_sprintf("invalid IPv6 address '%s'", filename);

     return FAIL;
     return FAIL;

+
+  default:
+    *errmsg = string_sprintf("invalid IP address '%s'", filename);
+    return FAIL;
+#endif

   }
 
   }
 

-  SPF_request_query_mailfrom(spf_request, &spf_response);
-  *result = string_copy(US SPF_strresult(SPF_response_result(spf_response)));
-  SPF_response_free(spf_response);
-  SPF_request_free(spf_request);
-  return OK;
+if (SPF_request_set_env_from(spf_request, CS keystring))
+    {
+  *errmsg = string_sprintf("invalid envelope from address '%s'", keystring);
+  return FAIL;

 }
 
 }
 

+SPF_request_query_mailfrom(spf_request, &spf_response);
+*result = string_copy(US SPF_strresult(SPF_response_result(spf_response)));
+
+DEBUG(D_lookup) spf_response_debug(spf_response);
+
+SPF_response_free(spf_response);
+SPF_request_free(spf_request);
+return OK;
+}
+
+
+/*************************************************
+*         Version reporting entry point          *
+*************************************************/
+
+/* See local README for interface description. */
+
+#include "../version.h"
+
+void
+spf_version_report(FILE *f)
+{
+#ifdef DYNLOOKUP
+fprintf(f, "Library version: SPF: Exim version %s\n", EXIM_VERSION_STR);
+#endif
+}
+
+

 static lookup_info _lookup_info = {
   US"spf",                       /* lookup name */
   0,                             /* not absfile, not query style */
 static lookup_info _lookup_info = {
   US"spf",                       /* lookup name */
   0,                             /* not absfile, not query style */


@@ -82,7 +144,8 @@ static lookup_info _lookup_info = {
   spf_find,                      /* find function */
   spf_close,                     /* close function */
   NULL,                          /* no tidy function */
   spf_find,                      /* find function */
   spf_close,                     /* close function */
   NULL,                          /* no tidy function */

-  NULL                           /* no quoting function */
+  NULL,                          /* no quoting function */
+  spf_version_report             /* version reporting */

 };
 
 #ifdef DYNLOOKUP
 };
 
 #ifdef DYNLOOKUP


@@ -92,4 +155,4 @@ static lookup_info _lookup_info = {
 static lookup_info *_lookup_list[] = { &_lookup_info };
 lookup_module_info spf_lookup_module_info = { LOOKUP_MODULE_INFO_MAGIC, _lookup_list, 1 };
 
 static lookup_info *_lookup_list[] = { &_lookup_info };
 lookup_module_info spf_lookup_module_info = { LOOKUP_MODULE_INFO_MAGIC, _lookup_list, 1 };
 

-#endif /* EXPERIMENTAL_SPF */
+#endif /* SUPPORT_SPF */