Merge pull request #4088 from opensourcerouting/bump-libyang-requirement-vers

build, lib: bump libyang requirement version to >= 0.16.105 (-r3)

configure.ac

@@ -139,13 +139,6 @@ AC_ARG_WITH([yangmodelsdir], [AS_HELP_STRING([--with-yangmodelsdir=DIR], [yang m
 ])
 AC_SUBST([yangmodelsdir])
 
-AC_ARG_WITH([libyang_pluginsdir], [AS_HELP_STRING([--with-libyang-pluginsdir=DIR], [yangmodule plugins directory (${libdir}/frr/libyang_plugins)])], [
-	libyang_pluginsdir="$withval"
-], [
-   libyang_pluginsdir="\${libdir}/frr/libyang_plugins"
-])
-AC_SUBST([libyang_pluginsdir])
-
 AC_ARG_ENABLE(tcmalloc,
 	AS_HELP_STRING([--enable-tcmalloc], [Turn on tcmalloc]),
 [case "${enableval}" in
@@ -1608,8 +1601,8 @@ AC_SUBST([SNMP_CFLAGS])
 dnl ---------------
 dnl libyang
 dnl ---------------
-PKG_CHECK_MODULES([LIBYANG], [libyang >= 0.16.7], , [
+PKG_CHECK_MODULES([LIBYANG], [libyang >= 0.16.105], , [
-  AC_MSG_ERROR([libyang (>= 0.16.7) was not found on your system.])
+  AC_MSG_ERROR([libyang (>= 0.16.105) was not found on your system.])
 ])
 ac_cflags_save="$CFLAGS"
 CFLAGS="$CFLAGS $LIBYANG_CFLAGS"
@@ -2166,24 +2159,20 @@ CFG_SBIN="$sbindir"
 CFG_STATE="$frr_statedir"
 CFG_MODULE="$moduledir"
 CFG_YANGMODELS="$yangmodelsdir"
-CFG_LIBYANG_PLUGINS="$libyang_pluginsdir"
 for I in 1 2 3 4 5 6 7 8 9 10; do
 	eval CFG_SYSCONF="\"$CFG_SYSCONF\""
 	eval CFG_SBIN="\"$CFG_SBIN\""
 	eval CFG_STATE="\"$CFG_STATE\""
 	eval CFG_MODULE="\"$CFG_MODULE\""
 	eval CFG_YANGMODELS="\"$CFG_YANGMODELS\""
-	eval CFG_LIBYANG_PLUGINS="\"$CFG_LIBYANG_PLUGINS\""
 done
 AC_SUBST([CFG_SYSCONF])
 AC_SUBST([CFG_SBIN])
 AC_SUBST([CFG_STATE])
 AC_SUBST([CFG_MODULE])
 AC_SUBST([CFG_YANGMODELS])
-AC_SUBST([CFG_LIBYANG_PLUGINS])
 AC_DEFINE_UNQUOTED([MODULE_PATH], ["$CFG_MODULE"], [path to modules])
 AC_DEFINE_UNQUOTED([YANG_MODELS_PATH], ["$CFG_YANGMODELS"], [path to YANG data models])
-AC_DEFINE_UNQUOTED([LIBYANG_PLUGINS_PATH], ["$CFG_LIBYANG_PLUGINS"], [path to libyang plugins])
 AC_DEFINE_UNQUOTED([WATCHFRR_SH_PATH], ["${CFG_SBIN%/}/watchfrr.sh"], [path to watchfrr.sh])
 
 dnl various features

doc/developer/building-libyang.rst

@@ -10,7 +10,7 @@ The FRR project builds binary ``libyang`` packages, which we offer for download
 
 .. warning::
 
-   ``libyang`` version 0.16.74 or newer is required to build FRR.
+   ``libyang`` version 0.16.105 or newer is required to build FRR.
 
 .. note::
 

doc/user/installation.rst

@@ -331,22 +331,6 @@ options to the configuration script.
    Look for YANG modules in `dir` [`prefix`/share/yang]. Note that the FRR
    YANG modules will be installed here.
 
-.. option:: --with-libyang-pluginsdir <dir>
-
-   Look for libyang plugins in `dir` [`prefix`/lib/frr/libyang_plugins].
-   Note that the FRR libyang plugins will be installed here.
-
-   This option is meaningless with libyang 0.16.74 or newer and will be
-   removed once support for older libyang versions is dropped.
-
-When it's desired to run FRR without installing it in the system, it's possible
-to configure it as follows to look for YANG modules and libyang plugins in the
-compile directory:
-.. code-block:: shell
-
-   ./configure --with-libyang-pluginsdir="`pwd`/yang/libyang_plugins/.libs" \
-               --with-yangmodelsdir="`pwd`/yang"
-
 Python dependency, documentation and tests
 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 

lib/northbound.c

@@ -1386,19 +1386,12 @@ int nb_oper_data_iterate(const char *xpath, struct yang_translator *translator,
 	 */
 	ly_errno = 0;
 	dnode = lyd_new_path(NULL, ly_native_ctx, xpath, NULL, 0,
-			     LYD_PATH_OPT_UPDATE);
+			     LYD_PATH_OPT_UPDATE | LYD_PATH_OPT_NOPARENTRET);
-	if (!dnode && ly_errno) {
+	if (!dnode) {
 		flog_warn(EC_LIB_LIBYANG, "%s: lyd_new_path() failed",
 			  __func__);
 		return NB_ERR;
 	}
-	/*
-	 * We can remove the following two lines once we depend on
-	 * libyang-v0.16-r2, which has the LYD_PATH_OPT_NOPARENTRET flag for
-	 * lyd_new_path().
-	 */
-	dnode = yang_dnode_get(dnode, xpath);
-	assert(dnode);
 
 	/*
 	 * Create a linked list to sort the data nodes starting from the root.