]> git.ipfire.org Git - thirdparty/bind9.git/commitdiff
look in windows registry for nameservers, domainname and search list
authorMark Andrews <marka@isc.org>
Fri, 9 Nov 2018 00:27:41 +0000 (11:27 +1100)
committerMark Andrews <marka@isc.org>
Fri, 9 Nov 2018 05:06:49 +0000 (16:06 +1100)
lib/irs/resconf.c
lib/irs/win32/libirs.vcxproj.filters.in
lib/irs/win32/libirs.vcxproj.in
lib/irs/win32/resconf.c [new file with mode: 0644]
util/copyrights

index fa91d444e35c2ad8bc677e583d269bd2f34b37a4..67179b11da8d3af030bd07e847fb57ce2978ad05 100644 (file)
@@ -126,6 +126,10 @@ resconf_parsesortlist(irs_resconf_t *conf,  FILE *fp);
 static isc_result_t
 resconf_parseoption(irs_resconf_t *ctx,  FILE *fp);
 
+#if HAVE_GET_WIN32_NAMESERVERS
+static isc_result_t get_win32_nameservers(irs_resconf_t *conf);
+#endif
+
 /*!
  * Eat characters from FP until EOL or EOF. Returns EOF or '\n'
  */
@@ -562,15 +566,6 @@ irs_resconf_load(isc_mem_t *mctx, const char *filename, irs_resconf_t **confp)
                goto error;
        }
 
-       /* If we don't find a nameserver fall back to localhost */
-       if (conf->numns == 0U) {
-               INSIST(ISC_LIST_EMPTY(conf->nameservers));
-
-               /* XXX: should we catch errors? */
-               (void)add_server(conf->mctx, "::1", &conf->nameservers);
-               (void)add_server(conf->mctx, "127.0.0.1", &conf->nameservers);
-       }
-
        /*
         * Construct unified search list from domain or configured
         * search list
@@ -585,6 +580,22 @@ irs_resconf_load(isc_mem_t *mctx, const char *filename, irs_resconf_t **confp)
                }
        }
 
+#if HAVE_GET_WIN32_NAMESERVERS
+       ret = get_win32_nameservers(conf);
+       if (ret != ISC_R_SUCCESS) {
+               goto error;
+       }
+#endif
+
+       /* If we don't find a nameserver fall back to localhost */
+       if (conf->numns == 0U) {
+               INSIST(ISC_LIST_EMPTY(conf->nameservers));
+
+               /* XXX: should we catch errors? */
+               (void)add_server(conf->mctx, "::1", &conf->nameservers);
+               (void)add_server(conf->mctx, "127.0.0.1", &conf->nameservers);
+       }
+
  error:
        conf->magic = IRS_RESCONF_MAGIC;
 
index eae47de95836e7e208da0ecd0ea39f5bfb9b0f09..0ffbc07357726ea53b797d4fc2d0d1229a3a753f 100644 (file)
@@ -39,7 +39,7 @@
     <ClCompile Include="..\getnameinfo.c">
       <Filter>Source Files</Filter>
     </ClCompile>
-    <ClCompile Include="..\resconf.c">
+    <ClCompile Include="resconf.c">
       <Filter>Source Files</Filter>
     </ClCompile>
   </ItemGroup>
@@ -66,4 +66,4 @@
       <Filter>Header Files</Filter>
     </ClInclude>
   </ItemGroup>
-</Project>
\ No newline at end of file
+</Project>
index 284a48a3d2bdf587aadacd5b916553945c31891b..57176f5accbb9035dd6897f2e6653fc53cc5312c 100644 (file)
@@ -67,7 +67,7 @@
       <SubSystem>Console</SubSystem>
       <GenerateDebugInformation>true</GenerateDebugInformation>
       <AdditionalLibraryDirectories>..\..\isc\win32\$(Configuration);..\..\dns\win32\$(Configuration);..\..\isccfg\win32\$(Configuration);%(AdditionalLibraryDirectories)</AdditionalLibraryDirectories>
-      <AdditionalDependencies>@OPENSSL_LIB@libisc.lib;libdns.lib;libisccfg.lib;ws2_32.lib;%(AdditionalDependencies)</AdditionalDependencies>
+      <AdditionalDependencies>@OPENSSL_LIB@libisc.lib;libdns.lib;libisccfg.lib;ws2_32.lib;iphlpapi.lib;%(AdditionalDependencies)</AdditionalDependencies>
       <ModuleDefinitionFile>.\libirs.def</ModuleDefinitionFile>
       <ImportLibrary>.\$(Configuration)\$(ProjectName).lib</ImportLibrary>
       <OutputFile>..\..\..\Build\$(Configuration)\$(TargetName)$(TargetExt)</OutputFile>
@@ -98,7 +98,7 @@
       <EnableCOMDATFolding>true</EnableCOMDATFolding>
       <OptimizeReferences>true</OptimizeReferences>
       <AdditionalLibraryDirectories>..\..\isc\win32\$(Configuration);..\..\dns\win32\$(Configuration);..\..\isccfg\win32\$(Configuration);%(AdditionalLibraryDirectories)</AdditionalLibraryDirectories>
-      <AdditionalDependencies>@OPENSSL_LIB@libisc.lib;libdns.lib;libisccfg.lib;ws2_32.lib;%(AdditionalDependencies)</AdditionalDependencies>
+      <AdditionalDependencies>@OPENSSL_LIB@libisc.lib;libdns.lib;libisccfg.lib;ws2_32.lib;iphlpapi.lib;%(AdditionalDependencies)</AdditionalDependencies>
       <ModuleDefinitionFile>.\libirs.def</ModuleDefinitionFile>
       <ImportLibrary>.\$(Configuration)\$(ProjectName).lib</ImportLibrary>
       <LinkTimeCodeGeneration>Default</LinkTimeCodeGeneration>
     <ClCompile Include="..\gai_strerror.c" />
     <ClCompile Include="..\getaddrinfo.c" />
     <ClCompile Include="..\getnameinfo.c" />
-    <ClCompile Include="..\resconf.c" />
     <ClCompile Include="DLLMain.c" />
+    <ClCompile Include="resconf.c" />
     <ClCompile Include="version.c" />
   </ItemGroup>
   <ItemGroup>
diff --git a/lib/irs/win32/resconf.c b/lib/irs/win32/resconf.c
new file mode 100644 (file)
index 0000000..45d3629
--- /dev/null
@@ -0,0 +1,131 @@
+/*
+ * Copyright (C) Internet Systems Consortium, Inc. ("ISC")
+ *
+ * This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/.
+ *
+ * See the COPYRIGHT file distributed with this work for additional
+ * information regarding copyright ownership.
+ */
+
+/*
+ * Note that on Win32 there is normally no resolv.conf since all information
+ * is stored in the registry. Therefore there is no ordering like the
+ * contents of resolv.conf. Since the "search" or "domain" keyword, on
+ * Win32 if a search list is found it is used, otherwise the domain name
+ * is used since they are mutually exclusive. The search list can be entered
+ * in the DNS tab of the "Advanced TCP/IP settings" window under the same place
+ * that you add your nameserver list.
+ */
+
+#define HAVE_GET_WIN32_NAMESERVERS 1
+
+#include "../resconf.c"
+
+#include <iphlpapi.h>
+
+#define TCPIP_SUBKEY   \
+       "SYSTEM\\CurrentControlSet\\Services\\Tcpip\\Parameters"
+
+isc_result_t
+get_win32_searchlist(irs_resconf_t *conf) {
+       isc_result_t result = ISC_R_SUCCESS;
+       HKEY hKey;
+       BOOL keyFound = TRUE;
+       char searchlist[MAX_PATH];
+       DWORD searchlen = MAX_PATH;
+       LSTATUS status;
+       char *cp;
+
+       REQUIRE(conf != NULL);
+
+       memset(searchlist, 0, MAX_PATH);
+       status = RegOpenKeyEx(HKEY_LOCAL_MACHINE, TCPIP_SUBKEY, 0, KEY_READ,
+                             &hKey);
+       if (status != ERROR_SUCCESS) {
+               return (ISC_R_SUCCESS);
+       }
+
+       status = RegQueryValueEx(hKey, "SearchList", NULL, NULL,
+                                (LPBYTE)searchlist, &searchlen);
+       RegCloseKey(hKey);
+       if (status != ERROR_SUCCESS) {
+               return (ISC_R_SUCCESS);
+       }
+
+       cp = strtok((char *)searchlist, ", \0");
+       while (cp != NULL) {
+               result = add_search(conf, cp);
+               if (result != ISC_R_SUCCESS) {
+                       break;
+               }
+               cp = strtok(NULL, ", \0");
+       }
+       return (result);
+}
+
+isc_result_t
+get_win32_nameservers(irs_resconf_t *conf) {
+       isc_result_t result;
+       FIXED_INFO *FixedInfo;
+       ULONG BufLen = sizeof(FIXED_INFO);
+       DWORD dwRetVal;
+       IP_ADDR_STRING *pIPAddr;
+
+       REQUIRE(conf != NULL);
+
+       FixedInfo = (FIXED_INFO *) GlobalAlloc(GPTR, BufLen);
+       if (FixedInfo == NULL) {
+               return (ISC_R_NOMEMORY);
+       }
+       dwRetVal = GetNetworkParams(FixedInfo, &BufLen);
+       if (dwRetVal == ERROR_BUFFER_OVERFLOW) {
+               GlobalFree(FixedInfo);
+               FixedInfo = GlobalAlloc(GPTR, BufLen);
+               if (FixedInfo == NULL) {
+                       return (ISC_R_NOMEMORY);
+               }
+               dwRetVal = GetNetworkParams(FixedInfo, &BufLen);
+       }
+       if (dwRetVal != ERROR_SUCCESS) {
+               GlobalFree(FixedInfo);
+               return (ISC_R_FAILURE);
+       }
+
+       result = get_win32_searchlist(conf);
+       if (result != ISC_R_SUCCESS) {
+               goto cleanup;
+       }
+
+       if (ISC_LIST_EMPTY(conf->searchlist) &&
+           strlen(FixedInfo->DomainName) > 0)
+       {
+               result = add_search(conf, FixedInfo->DomainName);
+               if (result != ISC_R_SUCCESS) {
+                       goto cleanup;
+               }
+       }
+
+       /* Get the list of nameservers */
+       pIPAddr = &FixedInfo->DnsServerList;
+       while (pIPAddr) {
+               if (conf->numns >= RESCONFMAXNAMESERVERS) {
+                       break;
+               }
+
+               result = add_server(conf->mctx, pIPAddr->IpAddress.String,
+                                   &conf->nameservers);
+               if (result != ISC_R_SUCCESS) {
+                       break;
+               }
+               conf->numns++;
+               pIPAddr = pIPAddr->Next;
+       }
+
+ cleanup:
+       if (FixedInfo != NULL) {
+               GlobalFree(FixedInfo);
+       }
+       return (result);
+}
index 81be8677246a61503258dbdd1ed9ee49b33d0cd9..17df487657e919d028e48a5918a280e6e85817f6 100644 (file)
 ./lib/irs/win32/libirs.vcxproj.filters.in      X       2014,2015,2016,2018
 ./lib/irs/win32/libirs.vcxproj.in              X       2014,2015,2016,2017,2018
 ./lib/irs/win32/libirs.vcxproj.user            X       2014,2018
+./lib/irs/win32/resconf.c                      C       2018
 ./lib/irs/win32/version.c                      C       2014,2016,2018
 ./lib/isc/Atffile                              X       2011,2018
 ./lib/isc/Kyuafile                             X       2017,2018