mirror of
https://gitlab.freedesktop.org/NetworkManager/NetworkManager.git
synced 2025-12-24 02:00:09 +01:00
66 lines
1.6 KiB
Text
66 lines
1.6 KiB
Text
|
AC_DEFUN([NM_LIBNL_CHECK], [
|
||
|
|
AC_MSG_CHECKING([for libnl address caching bug])
|
||
|
|
save_CFLAGS="$CFLAGS"
|
||
|
|
save_LDFLAGS="$LDFLAGS"
|
||
|
|
CFLAGS="$CFLAGS $LIBNL_CFLAGS"
|
||
|
|
LDFLAGS="$LDFLAGS $LIBNL_LIBS"
|
||
|
|
AC_RUN_IFELSE([
|
||
|
|
#include <stdio.h>
|
||
|
|
#include <netlink/route/addr.h>
|
||
|
|
#include <netlink/object-api.h>
|
||
|
|
|
||
|
|
int
|
||
|
|
main (int argc, char **argv)
|
||
|
|
{
|
||
|
|
struct nl_handle *nlh;
|
||
|
|
struct nl_cache *cache;
|
||
|
|
struct nl_object *obj;
|
||
|
|
|
||
|
|
nlh = nl_handle_alloc ();
|
||
|
|
if (nl_connect (nlh, NETLINK_ROUTE) < 0) {
|
||
|
|
fprintf (stderr, "couldn't connect to netlink: %s", nl_geterror ());
|
||
|
|
return 3;
|
||
|
|
}
|
||
|
|
|
||
|
|
cache = rtnl_addr_alloc_cache (nlh);
|
||
|
|
if (!cache || nl_cache_nitems (cache) == 0) {
|
||
|
|
fprintf (stderr, "couldn't fill address cache: %s", nl_geterror ());
|
||
|
|
return 3;
|
||
|
|
}
|
||
|
|
|
||
|
|
obj = nl_cache_get_first (cache);
|
||
|
|
if (nl_object_identical (obj, obj))
|
||
|
|
return 0;
|
||
|
|
|
||
|
|
nl_cache_get_ops (cache)->co_obj_ops->oo_id_attrs &= ~0x80;
|
||
|
|
if (nl_object_identical (obj, obj))
|
||
|
|
return 1;
|
||
|
|
else
|
||
|
|
return 2;
|
||
|
|
}
|
||
|
|
], libnl_bug=$?, libnl_bug=$?, libnl_bug=cross)
|
||
|
|
|
||
|
|
CFLAGS="$save_CFLAGS"
|
||
|
|
LDFLAGS="$save_LDFLAGS"
|
||
|
|
|
||
|
|
case $libnl_bug in
|
||
|
|
0) AC_MSG_RESULT([no])
|
||
|
|
;;
|
||
|
|
|
||
|
|
1) AC_MSG_RESULT([yes, using workaround])
|
||
|
|
AC_DEFINE(LIBNL_NEEDS_ADDR_CACHING_WORKAROUND, 1, [Define this to hack around buggy libnl rtnl_addr caching])
|
||
|
|
;;
|
||
|
|
|
||
|
|
2) AC_MSG_RESULT([yes, and workaround doesn't work])
|
||
|
|
AC_MSG_ERROR([Installed libnl has broken address caching; please patch or upgrade])
|
||
|
|
;;
|
||
|
|
|
||
|
|
cross) AC_MSG_RESULT([cross-compiling... assuming it works!])
|
||
|
|
;;
|
||
|
|
|
||
|
|
*) AC_MSG_RESULT([?])
|
||
|
|
AC_MSG_ERROR([libnl test program failed])
|
||
|
|
;;
|
||
|
|
esac
|
||
|
|
])
|