Add MFC/R2 support for chan_dahdi.

This commit introduces official support for R2 signaling in chan_dahdi.  The
modifications to chan_dahdi, and the supporting library, LibOpenR2, were both
written by Moises Silva.

Many users are using this code, or a variant of it, in Asterisk 1.2, 1.4 and 1.6
in Brazil, México and Argentina. An unknown number of users (but at least 1) 
are using it in each of the following countries: Colombia, Nepal, Thailand, 
Venezuela, Perú, and probably others.

To use this code, LibOpenR2 must be installed from http://www.libopenr2.org/.
Information about configuration can be found in configs/chan_dahdi.conf.sample.

The code committed is the most up to date version, which was being maintained
in svn/asterisk/team/moy/mfcr2/.

I would also like to include a Thank You to the many others that tested this
code beyond those listed in this commit message.  These are the names that I
could find in the mantis issue.

(closes issue #12509)
Reported by: moy
Patches:
      chan_zap-mfr2.patch uploaded by moy (license 222)
Tested by: moy, korihor, viniciusfontes, Skarmeth, loloski, asbestoshead, titogarrido, heliocoelhojr, konsultex, ncorrare, ecarruda, rtorresduque, PTorres, ychen

Review: http://reviewboard.digium.com/r/40/


git-svn-id: http://svn.digium.com/svn/asterisk/trunk@182355 f38db490-d61c-443f-a65b-d21fe96a405b

1 files changed, 312 insertions, 10 deletions

diff --git a/configure b/configure
index 323f98eb8..664a70c3d 100755
--- a/configure
+++ b/configure
@@ -1,5 +1,5 @@
 #! /bin/sh
-# From configure.ac Revision: 180944 .
+# From configure.ac Revision: 182170 .
 # Guess values for system-dependent variables and create Makefiles.
 # Generated by GNU Autoconf 2.61 for asterisk 1.6.
 #
@@ -879,6 +879,10 @@ SS7_LIB
 SS7_INCLUDE
 SS7_DIR
 PBX_SS7
+OPENR2_LIB
+OPENR2_INCLUDE
+OPENR2_DIR
+PBX_OPENR2
 PWLIB_LIB
 PWLIB_INCLUDE
 PWLIB_DIR
@@ -1659,6 +1663,7 @@ Optional Packages:
   --with-resample=PATH    use LIBRESAMPLE files in PATH
   --with-spandsp=PATH     use SPANDSP files in PATH
   --with-ss7=PATH         use ISDN SS7 files in PATH
+  --with-openr2=PATH      use MFR2 files in PATH
   --with-pwlib=PATH       use PWlib files in PATH
   --with-h323=PATH        use OpenH323 files in PATH
   --with-radius=PATH      use Radius Client files in PATH
@@ -9298,6 +9303,37 @@ fi
 
 
 
+    OPENR2_DESCRIP="MFR2"
+    OPENR2_OPTION="openr2"
+    PBX_OPENR2=0
+
+# Check whether --with-openr2 was given.
+if test "${with_openr2+set}" = set; then
+  withval=$with_openr2;
+	case ${withval} in
+	n|no)
+	USE_OPENR2=no
+	# -1 is a magic value used by menuselect to know that the package
+	# was disabled, other than 'not found'
+	PBX_OPENR2=-1
+	;;
+	y|ye|yes)
+	ac_mandatory_list="${ac_mandatory_list} OPENR2"
+	;;
+	*)
+	OPENR2_DIR="${withval}"
+	ac_mandatory_list="${ac_mandatory_list} OPENR2"
+	;;
+	esac
+
+fi
+
+
+
+
+
+
+
     PWLIB_DESCRIP="PWlib"
     PWLIB_OPTION="pwlib"
     PBX_PWLIB=0
@@ -43130,6 +43166,268 @@ _ACEOF
 fi
 
 
+
+if test "x${PBX_OPENR2}" != "x1" -a "${USE_OPENR2}" != "no"; then
+   pbxlibdir=""
+   # if --with-OPENR2=DIR has been specified, use it.
+   if test "x${OPENR2_DIR}" != "x"; then
+      if test -d ${OPENR2_DIR}/lib; then
+      	 pbxlibdir="-L${OPENR2_DIR}/lib"
+      else
+      	 pbxlibdir="-L${OPENR2_DIR}"
+      fi
+   fi
+   pbxfuncname="openr2_chan_new"
+   if test "x${pbxfuncname}" = "x" ; then   # empty lib, assume only headers
+      AST_OPENR2_FOUND=yes
+   else
+      as_ac_Lib=`echo "ac_cv_lib_openr2_${pbxfuncname}" | $as_tr_sh`
+{ echo "$as_me:$LINENO: checking for ${pbxfuncname} in -lopenr2" >&5
+echo $ECHO_N "checking for ${pbxfuncname} in -lopenr2... $ECHO_C" >&6; }
+if { as_var=$as_ac_Lib; eval "test \"\${$as_var+set}\" = set"; }; then
+  echo $ECHO_N "(cached) $ECHO_C" >&6
+else
+  ac_check_lib_save_LIBS=$LIBS
+LIBS="-lopenr2 ${pbxlibdir}  $LIBS"
+cat >conftest.$ac_ext <<_ACEOF
+/* confdefs.h.  */
+_ACEOF
+cat confdefs.h >>conftest.$ac_ext
+cat >>conftest.$ac_ext <<_ACEOF
+/* end confdefs.h.  */
+
+/* Override any GCC internal prototype to avoid an error.
+   Use char because int might match the return type of a GCC
+   builtin and then its argument prototype would still apply.  */
+#ifdef __cplusplus
+extern "C"
+#endif
+char ${pbxfuncname} ();
+int
+main ()
+{
+return ${pbxfuncname} ();
+  ;
+  return 0;
+}
+_ACEOF
+rm -f conftest.$ac_objext conftest$ac_exeext
+if { (ac_try="$ac_link"
+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_link") 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 $ac_status); } && {
+	 test -z "$ac_c_werror_flag" ||
+	 test ! -s conftest.err
+       } && test -s conftest$ac_exeext &&
+       $as_test_x conftest$ac_exeext; then
+  eval "$as_ac_Lib=yes"
+else
+  echo "$as_me: failed program was:" >&5
+sed 's/^/| /' conftest.$ac_ext >&5
+
+	eval "$as_ac_Lib=no"
+fi
+
+rm -f core conftest.err conftest.$ac_objext conftest_ipa8_conftest.oo \
+      conftest$ac_exeext conftest.$ac_ext
+LIBS=$ac_check_lib_save_LIBS
+fi
+ac_res=`eval echo '${'$as_ac_Lib'}'`
+	       { echo "$as_me:$LINENO: result: $ac_res" >&5
+echo "${ECHO_T}$ac_res" >&6; }
+if test `eval echo '${'$as_ac_Lib'}'` = yes; then
+  AST_OPENR2_FOUND=yes
+else
+  AST_OPENR2_FOUND=no
+fi
+
+   fi
+
+   # now check for the header.
+   if test "${AST_OPENR2_FOUND}" = "yes"; then
+      OPENR2_LIB="${pbxlibdir} -lopenr2 "
+      # if --with-OPENR2=DIR has been specified, use it.
+      if test "x${OPENR2_DIR}" != "x"; then
+	 OPENR2_INCLUDE="-I${OPENR2_DIR}/include"
+      fi
+      OPENR2_INCLUDE="${OPENR2_INCLUDE} "
+      if test "xopenr2.h" = "x" ; then	# no header, assume found
+         OPENR2_HEADER_FOUND="1"
+      else				# check for the header
+         saved_cppflags="${CPPFLAGS}"
+         CPPFLAGS="${CPPFLAGS} ${OPENR2_INCLUDE}"
+	 if test "${ac_cv_header_openr2_h+set}" = set; then
+  { echo "$as_me:$LINENO: checking for openr2.h" >&5
+echo $ECHO_N "checking for openr2.h... $ECHO_C" >&6; }
+if test "${ac_cv_header_openr2_h+set}" = set; then
+  echo $ECHO_N "(cached) $ECHO_C" >&6
+fi
+{ echo "$as_me:$LINENO: result: $ac_cv_header_openr2_h" >&5
+echo "${ECHO_T}$ac_cv_header_openr2_h" >&6; }
+else
+  # Is the header compilable?
+{ echo "$as_me:$LINENO: checking openr2.h usability" >&5
+echo $ECHO_N "checking openr2.h usability... $ECHO_C" >&6; }
+cat >conftest.$ac_ext <<_ACEOF
+/* confdefs.h.  */
+_ACEOF
+cat confdefs.h >>conftest.$ac_ext
+cat >>conftest.$ac_ext <<_ACEOF
+/* end confdefs.h.  */
+$ac_includes_default
+#include <openr2.h>
+_ACEOF
+rm -f conftest.$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 $ac_status); } && {
+	 test -z "$ac_c_werror_flag" ||
+	 test ! -s conftest.err
+       } && test -s conftest.$ac_objext; then
+  ac_header_compiler=yes
+else
+  echo "$as_me: failed program was:" >&5
+sed 's/^/| /' conftest.$ac_ext >&5
+
+	ac_header_compiler=no
+fi
+
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+{ echo "$as_me:$LINENO: result: $ac_header_compiler" >&5
+echo "${ECHO_T}$ac_header_compiler" >&6; }
+
+# Is the header present?
+{ echo "$as_me:$LINENO: checking openr2.h presence" >&5
+echo $ECHO_N "checking openr2.h presence... $ECHO_C" >&6; }
+cat >conftest.$ac_ext <<_ACEOF
+/* confdefs.h.  */
+_ACEOF
+cat confdefs.h >>conftest.$ac_ext
+cat >>conftest.$ac_ext <<_ACEOF
+/* end confdefs.h.  */
+#include <openr2.h>
+_ACEOF
+if { (ac_try="$ac_cpp conftest.$ac_ext"
+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_cpp conftest.$ac_ext") 2>conftest.er1
+  ac_status=$?
+  grep -v '^ *+' conftest.er1 >conftest.err
+  rm -f conftest.er1
+  cat conftest.err >&5
+  echo "$as_me:$LINENO: \$? = $ac_status" >&5
+  (exit $ac_status); } >/dev/null && {
+	 test -z "$ac_c_preproc_warn_flag$ac_c_werror_flag" ||
+	 test ! -s conftest.err
+       }; then
+  ac_header_preproc=yes
+else
+  echo "$as_me: failed program was:" >&5
+sed 's/^/| /' conftest.$ac_ext >&5
+
+  ac_header_preproc=no
+fi
+
+rm -f conftest.err conftest.$ac_ext
+{ echo "$as_me:$LINENO: result: $ac_header_preproc" >&5
+echo "${ECHO_T}$ac_header_preproc" >&6; }
+
+# So?  What about this header?
+case $ac_header_compiler:$ac_header_preproc:$ac_c_preproc_warn_flag in
+  yes:no: )
+    { echo "$as_me:$LINENO: WARNING: openr2.h: accepted by the compiler, rejected by the preprocessor!" >&5
+echo "$as_me: WARNING: openr2.h: accepted by the compiler, rejected by the preprocessor!" >&2;}
+    { echo "$as_me:$LINENO: WARNING: openr2.h: proceeding with the compiler's result" >&5
+echo "$as_me: WARNING: openr2.h: proceeding with the compiler's result" >&2;}
+    ac_header_preproc=yes
+    ;;
+  no:yes:* )
+    { echo "$as_me:$LINENO: WARNING: openr2.h: present but cannot be compiled" >&5
+echo "$as_me: WARNING: openr2.h: present but cannot be compiled" >&2;}
+    { echo "$as_me:$LINENO: WARNING: openr2.h:     check for missing prerequisite headers?" >&5
+echo "$as_me: WARNING: openr2.h:     check for missing prerequisite headers?" >&2;}
+    { echo "$as_me:$LINENO: WARNING: openr2.h: see the Autoconf documentation" >&5
+echo "$as_me: WARNING: openr2.h: see the Autoconf documentation" >&2;}
+    { echo "$as_me:$LINENO: WARNING: openr2.h:     section \"Present But Cannot Be Compiled\"" >&5
+echo "$as_me: WARNING: openr2.h:     section \"Present But Cannot Be Compiled\"" >&2;}
+    { echo "$as_me:$LINENO: WARNING: openr2.h: proceeding with the preprocessor's result" >&5
+echo "$as_me: WARNING: openr2.h: proceeding with the preprocessor's result" >&2;}
+    { echo "$as_me:$LINENO: WARNING: openr2.h: in the future, the compiler will take precedence" >&5
+echo "$as_me: WARNING: openr2.h: in the future, the compiler will take precedence" >&2;}
+    ( cat <<\_ASBOX
+## ------------------------------- ##
+## Report this to www.asterisk.org ##
+## ------------------------------- ##
+_ASBOX
+     ) | sed "s/^/$as_me: WARNING:     /" >&2
+    ;;
+esac
+{ echo "$as_me:$LINENO: checking for openr2.h" >&5
+echo $ECHO_N "checking for openr2.h... $ECHO_C" >&6; }
+if test "${ac_cv_header_openr2_h+set}" = set; then
+  echo $ECHO_N "(cached) $ECHO_C" >&6
+else
+  ac_cv_header_openr2_h=$ac_header_preproc
+fi
+{ echo "$as_me:$LINENO: result: $ac_cv_header_openr2_h" >&5
+echo "${ECHO_T}$ac_cv_header_openr2_h" >&6; }
+
+fi
+if test $ac_cv_header_openr2_h = yes; then
+  OPENR2_HEADER_FOUND=1
+else
+  OPENR2_HEADER_FOUND=0
+fi
+
+
+         CPPFLAGS="${saved_cppflags}"
+      fi
+      if test "x${OPENR2_HEADER_FOUND}" = "x0" ; then
+         OPENR2_LIB=""
+         OPENR2_INCLUDE=""
+      else
+         if test "x${pbxfuncname}" = "x" ; then		# only checking headers -> no library
+	    OPENR2_LIB=""
+	 fi
+         PBX_OPENR2=1
+         # XXX don't know how to evaluate the description (third argument) in AC_DEFINE_UNQUOTED
+
+cat >>confdefs.h <<_ACEOF
+#define HAVE_OPENR2 1
+_ACEOF
+
+
+cat >>confdefs.h <<_ACEOF
+#define HAVE_OPENR2_VERSION
+_ACEOF
+
+      fi
+   fi
+fi
+
+
 if test "${USE_PWLIB}" != "no"; then
 	if test -n "${PWLIB_DIR}"; then
 		PWLIBDIR="${PWLIB_DIR}"
@@ -54018,6 +54316,10 @@ SS7_LIB!$SS7_LIB$ac_delim
 SS7_INCLUDE!$SS7_INCLUDE$ac_delim
 SS7_DIR!$SS7_DIR$ac_delim
 PBX_SS7!$PBX_SS7$ac_delim
+OPENR2_LIB!$OPENR2_LIB$ac_delim
+OPENR2_INCLUDE!$OPENR2_INCLUDE$ac_delim
+OPENR2_DIR!$OPENR2_DIR$ac_delim
+PBX_OPENR2!$PBX_OPENR2$ac_delim
 PWLIB_LIB!$PWLIB_LIB$ac_delim
 PWLIB_INCLUDE!$PWLIB_INCLUDE$ac_delim
 PWLIB_DIR!$PWLIB_DIR$ac_delim
@@ -54045,10 +54347,6 @@ PBX_OPENAIS!$PBX_OPENAIS$ac_delim
 SPEEX_LIB!$SPEEX_LIB$ac_delim
 SPEEX_INCLUDE!$SPEEX_INCLUDE$ac_delim
 SPEEX_DIR!$SPEEX_DIR$ac_delim
-PBX_SPEEX!$PBX_SPEEX$ac_delim
-SPEEX_PREPROCESS_LIB!$SPEEX_PREPROCESS_LIB$ac_delim
-SPEEX_PREPROCESS_INCLUDE!$SPEEX_PREPROCESS_INCLUDE$ac_delim
-SPEEX_PREPROCESS_DIR!$SPEEX_PREPROCESS_DIR$ac_delim
 _ACEOF
 
   if test `sed -n "s/.*$ac_delim\$/X/p" conf$$subs.sed | grep -c X` = 97; then
@@ -54090,6 +54388,10 @@ _ACEOF
 ac_delim='%!_!# '
 for ac_last_try in false false false false false :; do
   cat >conf$$subs.sed <<_ACEOF
+PBX_SPEEX!$PBX_SPEEX$ac_delim
+SPEEX_PREPROCESS_LIB!$SPEEX_PREPROCESS_LIB$ac_delim
+SPEEX_PREPROCESS_INCLUDE!$SPEEX_PREPROCESS_INCLUDE$ac_delim
+SPEEX_PREPROCESS_DIR!$SPEEX_PREPROCESS_DIR$ac_delim
 PBX_SPEEX_PREPROCESS!$PBX_SPEEX_PREPROCESS$ac_delim
 SPEEXDSP_LIB!$SPEEXDSP_LIB$ac_delim
 SPEEXDSP_INCLUDE!$SPEEXDSP_INCLUDE$ac_delim
@@ -54183,10 +54485,6 @@ PWLIB_INCDIR!$PWLIB_INCDIR$ac_delim
 PWLIB_LIBDIR!$PWLIB_LIBDIR$ac_delim
 PWLIB_PLATFORM!$PWLIB_PLATFORM$ac_delim
 OPENH323DIR!$OPENH323DIR$ac_delim
-OPENH323_INCDIR!$OPENH323_INCDIR$ac_delim
-OPENH323_LIBDIR!$OPENH323_LIBDIR$ac_delim
-OPENH323_SUFFIX!$OPENH323_SUFFIX$ac_delim
-OPENH323_BUILD!$OPENH323_BUILD$ac_delim
 _ACEOF
 
   if test `sed -n "s/.*$ac_delim\$/X/p" conf$$subs.sed | grep -c X` = 97; then
@@ -54228,6 +54526,10 @@ _ACEOF
 ac_delim='%!_!# '
 for ac_last_try in false false false false false :; do
   cat >conf$$subs.sed <<_ACEOF
+OPENH323_INCDIR!$OPENH323_INCDIR$ac_delim
+OPENH323_LIBDIR!$OPENH323_LIBDIR$ac_delim
+OPENH323_SUFFIX!$OPENH323_SUFFIX$ac_delim
+OPENH323_BUILD!$OPENH323_BUILD$ac_delim
 PBX_AIS!$PBX_AIS$ac_delim
 AIS_INCLUDE!$AIS_INCLUDE$ac_delim
 AIS_LIB!$AIS_LIB$ac_delim
@@ -54245,7 +54547,7 @@ PBX_GENERIC_ODBC!$PBX_GENERIC_ODBC$ac_delim
 LTLIBOBJS!$LTLIBOBJS$ac_delim
 _ACEOF
 
-  if test `sed -n "s/.*$ac_delim\$/X/p" conf$$subs.sed | grep -c X` = 15; then
+  if test `sed -n "s/.*$ac_delim\$/X/p" conf$$subs.sed | grep -c X` = 19; then
     break
   elif $ac_last_try; then
     { { echo "$as_me:$LINENO: error: could not make $CONFIG_STATUS" >&5