From: Kevin P. Fleming <kpfleming@digium.com>
Date: Fri, 13 Oct 2006 15:47:42 +0000 (+0000)
Subject: Merged revisions 45027 via svnmerge from
X-Git-Tag: 1.6.0-beta1~3^2~4424
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=0638096e5caaaaa55639581e2f6af6a58bed7002;p=thirdparty%2Fasterisk.git

Merged revisions 45027 via svnmerge from
https://origsvn.digium.com/svn/asterisk/branches/1.4

........
r45027 | kpfleming | 2006-10-13 10:41:14 -0500 (Fri, 13 Oct 2006) | 2 lines

use a configure script test for PMTU discovery control instead of just assuming it's available on Linux

........


git-svn-id: https://origsvn.digium.com/svn/asterisk/trunk@45029 65c4cc65-6c06-0410-ace0-fbb531ad65f3
---

diff --git a/configure b/configure
index dd84a65ed3..689d5b0f04 100755
--- a/configure
+++ b/configure
@@ -14415,6 +14415,93 @@ cat >>confdefs.h <<\_ACEOF
 _ACEOF
 
 
+else
+  echo "$as_me: failed program was:" >&5
+sed 's/^/| /' conftest.$ac_ext >&5
+
+	       { echo "$as_me:$LINENO: result: no" >&5
+echo "${ECHO_T}no" >&6; }
+
+fi
+
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+	CPPFLAGS="${saved_cppflags}"
+    fi
+
+
+
+    if test "x${PBX_IP_MTU_DISCOVER}" != "x1" -a "${USE_IP_MTU_DISCOVER}" != "no"; then
+	{ echo "$as_me:$LINENO: checking for IP_MTU_DISCOVER in netinet/in.h" >&5
+echo $ECHO_N "checking for IP_MTU_DISCOVER in netinet/in.h... $ECHO_C" >&6; }
+	saved_cppflags="${CPPFLAGS}"
+	if test "x${IP_MTU_DISCOVER_DIR}" != "x"; then
+	    IP_MTU_DISCOVER_INCLUDE= "-I${IP_MTU_DISCOVER_DIR}/include"
+	fi
+	CPPFLAGS="${CPPFLAGS} ${IP_MTU_DISCOVER_INCLUDE}"
+
+	cat >conftest.$ac_ext <<_ACEOF
+ /* confdefs.h.  */
+_ACEOF
+cat confdefs.h >>conftest.$ac_ext
+cat >>conftest.$ac_ext <<_ACEOF
+/* end confdefs.h.  */
+#include <netinet/in.h>
+int
+main ()
+{
+int foo = IP_MTU_DISCOVER;
+  ;
+  return 0;
+}
+_ACEOF
+rm -f conftest.$ac_objext
+if { (ac_try="$ac_compile"
+case "(($ac_try" in
+  *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
+  *) ac_try_echo=$ac_try;;
+esac
+eval "echo \"\$as_me:$LINENO: $ac_try_echo\"") >&5
+  (eval "$ac_compile") 2>conftest.er1
+  ac_status=$?
+  grep -v '^ *+' conftest.er1 >conftest.err
+  rm -f conftest.er1
+  cat conftest.err >&5
+  echo "$as_me:$LINENO: \$? = $ac_status" >&5
+  (exit $ac_status); } &&
+	 { ac_try='test -z "$ac_c_werror_flag" || test ! -s conftest.err'
+  { (case "(($ac_try" in
+  *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
+  *) ac_try_echo=$ac_try;;
+esac
+eval "echo \"\$as_me:$LINENO: $ac_try_echo\"") >&5
+  (eval "$ac_try") 2>&5
+  ac_status=$?
+  echo "$as_me:$LINENO: \$? = $ac_status" >&5
+  (exit $ac_status); }; } &&
+	 { ac_try='test -s conftest.$ac_objext'
+  { (case "(($ac_try" in
+  *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
+  *) ac_try_echo=$ac_try;;
+esac
+eval "echo \"\$as_me:$LINENO: $ac_try_echo\"") >&5
+  (eval "$ac_try") 2>&5
+  ac_status=$?
+  echo "$as_me:$LINENO: \$? = $ac_status" >&5
+  (exit $ac_status); }; }; then
+     { echo "$as_me:$LINENO: result: yes" >&5
+echo "${ECHO_T}yes" >&6; }
+		PBX_IP_MTU_DISCOVER=1
+
+cat >>confdefs.h <<\_ACEOF
+#define HAVE_IP_MTU_DISCOVER 1
+_ACEOF
+
+
+cat >>confdefs.h <<\_ACEOF
+#define HAVE_IP_MTU_DISCOVER_VERSION
+_ACEOF
+
+
 else
   echo "$as_me: failed program was:" >&5
 sed 's/^/| /' conftest.$ac_ext >&5
diff --git a/configure.ac b/configure.ac
index bd4982b265..80ac4e90b5 100644
--- a/configure.ac
+++ b/configure.ac
@@ -299,6 +299,8 @@ AC_LINK_IFELSE(
 
 AST_C_DEFINE_CHECK([RTLD_NOLOAD], [RTLD_NOLOAD], [dlfcn.h])
 
+AST_C_DEFINE_CHECK([IP_MTU_DISCOVER], [IP_MTU_DISCOVER], [netinet/in.h])
+
 AC_CHECK_HEADER([libkern/OSAtomic.h],
                 [AC_DEFINE_UNQUOTED([HAVE_OSX_ATOMICS], 1, [Define to 1 if OSX atomic operations are supported.])])
 
diff --git a/include/asterisk/autoconfig.h.in b/include/asterisk/autoconfig.h.in
index 0e84394b9f..bb691133da 100644
--- a/include/asterisk/autoconfig.h.in
+++ b/include/asterisk/autoconfig.h.in
@@ -169,6 +169,12 @@
 /* Define to 1 if you have the <inttypes.h> header file. */
 #undef HAVE_INTTYPES_H
 
+/* Define if your system has the IP_MTU_DISCOVER headers. */
+#undef HAVE_IP_MTU_DISCOVER
+
+/* Define IP_MTU_DISCOVER headers version */
+#undef HAVE_IP_MTU_DISCOVER_VERSION
+
 /* Define to 1 if you have the `isascii' function. */
 #undef HAVE_ISASCII
 
diff --git a/main/utils.c b/main/utils.c
index 9ff2fd48ac..ceb049f3a5 100644
--- a/main/utils.c
+++ b/main/utils.c
@@ -987,10 +987,10 @@ int ast_dynamic_str_thread_build_va(struct ast_dynamic_str **buf, size_t max_len
 
 void ast_enable_packet_fragmentation(int sock)
 {
-#ifdef __linux__
+#if defined(HAVE_IP_MTU_DISCOVER)
 	int val = IP_PMTUDISC_DONT;
 	
 	if (setsockopt(sock, IPPROTO_IP, IP_MTU_DISCOVER, &val, sizeof(val)))
 		ast_log(LOG_WARNING, "Unable to disable PMTU discovery. Large UDP packets may fail to be delivered when sent from this socket.\n");
-#endif
+#endif /* HAVE_IP_MTU_DISCOVER */
 }