use radcli as the radius library if found

configure.ac

@@ -188,6 +188,9 @@ AC_ARG_WITH(radius,
 radius_enabled=no
 
 if test "$test_for_radius" = yes;then
+	PKG_CHECK_MODULES([RADCLI], [radcli >= 1.2.0], radius_enabled=radcli, radius_enabled=no)
+
+	if test "$radius_enabled" = no;then
 		LIBS="$oldlibs -lfreeradius-client"
 		AC_MSG_CHECKING([for freeradius client library])
 		AC_LINK_IFELSE([AC_LANG_PROGRAM([
@@ -197,18 +200,24 @@ AC_LINK_IFELSE([AC_LANG_PROGRAM([
 #endif
 		   rc_read_config(0);])],
 		  [AC_MSG_RESULT(yes)
-		   AC_SUBST([FREERADIUS_CLIENT_LIBS], [-lfreeradius-client])
-		   AC_SUBST([FREERADIUS_CLIENT_CFLAGS], [])
-		   radius_enabled=yes
-		   AC_DEFINE([HAVE_RADIUS], 1, [Enable the Radius library])],
+		   AC_SUBST([RADCLI_LIBS], [-lfreeradius-client])
+		   AC_SUBST([RADCLI_CFLAGS], [])
+		   radius_enabled=freeradius-client
+		   AC_DEFINE([LEGACY_RADIUS], 1, [Enable the legacy library support])],
 		  [AC_MSG_RESULT(no)
    	           AC_MSG_WARN([[
 *** 
-*** freeradius-client 1.1.7 or later was not found. Radius support will be disabled.
+*** radcli 1.2.0 or later was not found. Radius support will be disabled.
+*** See https://github.com/nmav/radcli
 *** ]])])
 		LIBS="$oldlibs"
 	fi
 
+	if test "$radius_enabled" != no;then
+		AC_DEFINE([HAVE_RADIUS], 1, [Enable the Radius library])
+	fi
+fi
+
 gl_INIT
 
 AC_LIB_HAVE_LINKFLAGS(crypt,, [#define _XOPEN_SOURCE

doc/README.radius

@@ -1,49 +1,58 @@
-============================================
 Using Radius with ocserv
-============================================
+========================
 
-For radius support the freeradius-client library is required. The
-minimum requirement is version 1.1.7 as released at:
-https://github.com/FreeRADIUS/freeradius-client
+For radius support the radcli library is required. The
+minimum requirement is version 1.2.0 as released at:
+https://github.com/nmav/radcli
 
-Freeradius-client uses a configuration file to setup the
+radcli uses a configuration file to setup the
 server configuration. That is typically found at:
-/etc/radiusclient/radiusclient.conf
-and is best to copy the default installed by freeradius-client
-as radiusclient-ocserv.conf and edit it accordingly.
+/etc/radcl/radiusclient.conf
+and is best to copy the default installed as radiusclient-ocserv.conf
+and edit it accordingly.
 
 The important options for ocserv usage are the following:
-dictionary 	/etc/radiusclient/dictionary
-servers         /etc/radiusclient/servers
+```
+dictionary 	/etc/radcli/dictionary
+servers         /etc/radcli/servers
+```
 
 The dictionary should contain at least the attributes shown below,
 and the servers file should contain the radius server to use.
 
-============================================
+
 Ocserv configuration
-============================================
+====================
 
 For authentication the following line should be enabled.
-#auth = "radius[/path/to/radiusclient.conf,groupconfig]"
+```
+auth = "radius[config=/etc/radiusclient/radiusclient.conf,groupconfig=true]"
+```
 
 Check the ocserv manpage for the meaning of the various options
 such as groupconfig.
 
-To enable accounting, set the following option to the time (in
+To enable accounting, use
+```
+acct = "radius[config=/etc/radiusclient/radiusclient.conf]"
+```
+
+and modify the following option to the time (in
 seconds), that accounting information should be reported.
-#stats-report-time = 360
+```
+stats-report-time = 360
+```
 
 That value will be overriden by Acct-Interim-Interval if sent
 by the server.
 
-============================================
+
 Dictionary
-============================================
+==========
 
-#
-# Ocserv supports the following radious attributes.
-#
+Ocserv supports the following radious attributes.
 
+```
 #	Standard attributes
 ATTRIBUTE	User-Name		1	string
 ATTRIBUTE	Password		2	string
@@ -108,6 +117,4 @@ ATTRIBUTE	Route-IPv6-Information	170	ipv6prefix
 #	Experimental Non Protocol Attributes used by Cistron-Radiusd
 #
 ATTRIBUTE	Group-Name		1030	string
-
-
-
+```

src/Makefile.am

@@ -6,7 +6,7 @@ AM_CPPFLAGS = -I$(srcdir)/../gl/ -I$(builddir)/../gl/ \
 	$(LIBPROTOBUF_C_CFLAGS) $(LIBLZ4_CFLAGS) \
 	$(LIBNL3_CFLAGS) $(LIBREADLINE_CFLAGS) \
 	$(LIBTALLOC_CFLAGS) $(LIBDBUS_CFLAGS) \
-	$(LIBKRB5_CFLAGS) $(LIBTASN1_CFLAGS)
+	$(LIBKRB5_CFLAGS) $(LIBTASN1_CFLAGS) $(RADCLI_CFLAGS)
 
 BUILT_SOURCES = ocpasswd-args.c ocpasswd-args.h \
 	ocserv-args.c ocserv-args.h ipc.pb-c.c ipc.pb-c.h \
@@ -101,7 +101,7 @@ ocserv_LDADD = ../gl/libgnu.a $(NEEDED_LIBOPTS) libcmd-ocserv.a
 ocserv_LDADD += $(LIBGNUTLS_LIBS) $(PAM_LIBS) $(LIBUTIL) \
 	$(LIBSECCOMP) $(LIBWRAP) $(LIBCRYPT) $(NEEDED_HTTP_PARSER_LIBS) \
 	$(LIBPROTOBUF_C_LIBS) $(LIBSYSTEMD) $(LIBTALLOC_LIBS) \
-	$(FREERADIUS_CLIENT_LIBS) $(LIBLZ4_LIBS) $(LIBKRB5_LIBS) \
+	$(RADCLI_LIBS) $(LIBLZ4_LIBS) $(LIBKRB5_LIBS) \
 	$(LIBTASN1_LIBS)
 
 

src/acct/radius.c

@@ -31,7 +31,12 @@
 
 #ifdef HAVE_RADIUS
 
+#ifdef LEGACY_RADIUS
 # include <freeradius-client.h>
+#else
+# include <radcli.h>
+#endif
+
 #include <sec-mod-acct.h>
 #include "auth/radius.h"
 #include "acct/radius.h"
@@ -163,7 +168,7 @@ static void append_acct_standard(rc_handle *rh, const common_auth_info_st *ai, V
 		}
 	}
 
-#if 0 /* bug in freeradius-client */
+#ifndef LEGACY_RADIUS /* bug in freeradius-client */
 	if (ai->ipv6[0] != 0) {
 		struct in6_addr in;
 		if (inet_pton(AF_INET6, ai->ipv6, &in) == 1) {

src/auth/radius.c

@@ -32,7 +32,12 @@
 #ifdef HAVE_RADIUS
 
 #include "cfg.h"
+
+#ifdef LEGACY_RADIUS
 # include <freeradius-client.h>
+#else
+# include <radcli.h>
+#endif
 
 #define RAD_GROUP_NAME 1030
 #define RAD_IPV4_DNS1 ((311<<16)|(28))