AS_HELP_STRING([--enable-systemd], [enable Systemd support]))
AC_ARG_ENABLE(poll,
AS_HELP_STRING([--enable-poll], [enable usage of Poll instead of select]))
+AC_ARG_ENABLE(mpls,
+ AS_HELP_STRING([--enable-mpls], [enable MPLS support - requires compatible kernel]))
AC_ARG_ENABLE(werror,
AS_HELP_STRING([--enable-werror], [enable -Werror (recommended for developers only)]))
AC_ARG_ENABLE(cumulus,
AC_DEFINE(HAVE_POLL,,Compile systemd support in)
fi
+dnl ----------
+dnl MPLS check
+dnl ----------
+MPLS_METHOD=""
+AC_MSG_CHECKING(whether this OS has MPLS stack)
+if test "x${enable_mpls}" = "xyes"; then
+ case "$host" in
+ *-linux*)
+ AC_DEFINE(HAVE_MPLS,,Enable MPLS)
+ MPLS_METHOD="zebra_mpls_netlink.o"
+ AC_MSG_RESULT(Linux MPLS)
+ ;;
+ *)
+ AC_MSG_RESULT(Unsupported kernel)
+ MPLS_METHOD="zebra_mpls_null.o"
+ ;;
+ esac
+else
+ AC_MSG_RESULT(disabled)
+ MPLS_METHOD="zebra_mpls_null.o"
+fi
+AC_SUBST(MPLS_METHOD)
+
if test "${enable_cumulus}" = "yes" ; then
AC_DEFINE(HAVE_CUMULUS,,Compile Special Cumulus Code in)
fi
rtread_method = @RTREAD_METHOD@
kernel_method = @KERNEL_METHOD@
ioctl_method = @IOCTL_METHOD@
+mpls_method = @MPLS_METHOD@
otherobj = $(ioctl_method) $(ipforward) $(if_method) \
- $(rt_method) $(rtread_method) $(kernel_method)
+ $(rt_method) $(rtread_method) $(kernel_method) $(mpls_method)
if HAVE_NETLINK
othersrc = zebra_fpm_netlink.c
zebra_vty.c zebra_ptm.c zebra_routemap.c zebra_ns.c zebra_vrf.c \
kernel_null.c redistribute_null.c ioctl_null.c misc_null.c zebra_rnh_null.c \
zebra_ptm_null.c rtadv_null.c if_null.c zserv_null.c zebra_static.c \
- zebra_memory.c zebra_mpls_null.c
+ zebra_memory.c zebra_mpls.c zebra_mpls_null.c
noinst_HEADERS = \
zebra_memory.h \
#include "zebra/connected.h"
#include "zebra/rt_netlink.h"
#include "zebra/rib.h"
-#include "zebra/zebra_mpls.h"
int kernel_add_ipv4 (struct prefix *a, struct rib *b) { return 0; }
int kernel_update_ipv4 (struct prefix *a, struct rib *b) { return 0; }
void kernel_init (struct zebra_ns *zns) { return; }
void kernel_terminate (struct zebra_ns *zns) { return; }
void route_read (struct zebra_ns *zns) { return; }
-
-int kernel_add_lsp (zebra_lsp_t *l) { return 0; }
-
-int kernel_del_lsp (zebra_lsp_t *l) { return 0; }
-
-int kernel_upd_lsp (zebra_lsp_t *l) { return 0; }
/*
* MPLS label forwarding table change via netlink interface.
*/
-static int
+int
netlink_mpls_multipath (int cmd, zebra_lsp_t *lsp)
{
mpls_lse_t lse;
/*
* Handle failure in LSP install, clear flags for NHLFE.
*/
-static inline void
+void
clear_nhlfe_installed (zebra_lsp_t *lsp)
{
zebra_nhlfe_t *nhlfe;
}
}
-/*
- * Install Label Forwarding entry into the kernel.
- */
-int
-kernel_add_lsp (zebra_lsp_t *lsp)
-{
- int ret;
-
- if (!lsp || !lsp->best_nhlfe) // unexpected
- return -1;
-
- UNSET_FLAG (lsp->flags, LSP_FLAG_CHANGED);
- ret = netlink_mpls_multipath (RTM_NEWROUTE, lsp);
- if (!ret)
- SET_FLAG (lsp->flags, LSP_FLAG_INSTALLED);
- else
- clear_nhlfe_installed (lsp);
-
- return ret;
-}
-
-/*
- * Update Label Forwarding entry in the kernel. This means that the Label
- * forwarding entry is already installed and needs an update - either a new
- * path is to be added, an installed path has changed (e.g., outgoing label)
- * or an installed path (but not all paths) has to be removed.
- * TODO: Performs a DEL followed by ADD now, need to change to REPLACE. Note
- * that REPLACE was originally implemented for IPv4 nexthops but removed as
- * it was not functioning when moving from swap to PHP as that was signaled
- * through the metric field (before kernel-MPLS). This shouldn't be an issue
- * any longer, so REPLACE can be reintroduced.
- */
-int
-kernel_upd_lsp (zebra_lsp_t *lsp)
-{
- int ret;
-
- if (!lsp || !lsp->best_nhlfe) // unexpected
- return -1;
-
- UNSET_FLAG (lsp->flags, LSP_FLAG_CHANGED);
-
- /* First issue a DEL and clear the installed flag. */
- netlink_mpls_multipath (RTM_DELROUTE, lsp);
- UNSET_FLAG (lsp->flags, LSP_FLAG_INSTALLED);
-
- /* Then issue an ADD. */
- ret = netlink_mpls_multipath (RTM_NEWROUTE, lsp);
- if (!ret)
- SET_FLAG (lsp->flags, LSP_FLAG_INSTALLED);
- else
- clear_nhlfe_installed (lsp);
-
- return ret;
-}
-
-/*
- * Delete Label Forwarding entry from the kernel.
- */
-int
-kernel_del_lsp (zebra_lsp_t *lsp)
-{
- if (!lsp) // unexpected
- return -1;
-
- if (CHECK_FLAG (lsp->flags, LSP_FLAG_INSTALLED))
- {
- netlink_mpls_multipath (RTM_DELROUTE, lsp);
- UNSET_FLAG (lsp->flags, LSP_FLAG_INSTALLED);
- }
-
- return 0;
-}
-
extern struct thread_master *master;
/* Kernel route reflection. */
#ifdef HAVE_NETLINK
+#include "zebra/zebra_mpls.h"
+
#define NL_PKT_BUF_SIZE 8192
#define NL_DEFAULT_ROUTE_METRIC 20
extern const char *
nl_rtproto_to_str (u_char rtproto);
+extern void
+clear_nhlfe_installed (zebra_lsp_t *lsp);
+extern int
+netlink_mpls_multipath (int cmd, zebra_lsp_t *lsp);
+
extern int interface_lookup_netlink (struct zebra_ns *zns);
extern int netlink_route_read (struct zebra_ns *zns);
--- /dev/null
+#include <zebra.h>
+#include "zebra/rt.h"
+#include "zebra/rt_netlink.h"
+#include "zebra/zebra_mpls.h"
+
+/*
+ * Install Label Forwarding entry into the kernel.
+ */
+int
+kernel_add_lsp (zebra_lsp_t *lsp)
+{
+ int ret;
+
+ if (!lsp || !lsp->best_nhlfe) // unexpected
+ return -1;
+
+ UNSET_FLAG (lsp->flags, LSP_FLAG_CHANGED);
+ ret = netlink_mpls_multipath (RTM_NEWROUTE, lsp);
+ if (!ret)
+ SET_FLAG (lsp->flags, LSP_FLAG_INSTALLED);
+ else
+ clear_nhlfe_installed (lsp);
+
+ return ret;
+}
+
+/*
+ * Update Label Forwarding entry in the kernel. This means that the Label
+ * forwarding entry is already installed and needs an update - either a new
+ * path is to be added, an installed path has changed (e.g., outgoing label)
+ * or an installed path (but not all paths) has to be removed.
+ * TODO: Performs a DEL followed by ADD now, need to change to REPLACE. Note
+ * that REPLACE was originally implemented for IPv4 nexthops but removed as
+ * it was not functioning when moving from swap to PHP as that was signaled
+ * through the metric field (before kernel-MPLS). This shouldn't be an issue
+ * any longer, so REPLACE can be reintroduced.
+ */
+int
+kernel_upd_lsp (zebra_lsp_t *lsp)
+{
+ int ret;
+
+ if (!lsp || !lsp->best_nhlfe) // unexpected
+ return -1;
+
+ UNSET_FLAG (lsp->flags, LSP_FLAG_CHANGED);
+
+ /* First issue a DEL and clear the installed flag. */
+ netlink_mpls_multipath (RTM_DELROUTE, lsp);
+ UNSET_FLAG (lsp->flags, LSP_FLAG_INSTALLED);
+
+ /* Then issue an ADD. */
+ ret = netlink_mpls_multipath (RTM_NEWROUTE, lsp);
+ if (!ret)
+ SET_FLAG (lsp->flags, LSP_FLAG_INSTALLED);
+ else
+ clear_nhlfe_installed (lsp);
+
+ return ret;
+}
+
+/*
+ * Delete Label Forwarding entry from the kernel.
+ */
+int
+kernel_del_lsp (zebra_lsp_t *lsp)
+{
+ if (!lsp) // unexpected
+ return -1;
+
+ if (CHECK_FLAG (lsp->flags, LSP_FLAG_INSTALLED))
+ {
+ netlink_mpls_multipath (RTM_DELROUTE, lsp);
+ UNSET_FLAG (lsp->flags, LSP_FLAG_INSTALLED);
+ }
+
+ return 0;
+}
#include <zebra.h>
-#include "nexthop.h"
-#include "zebra/rib.h"
-#include "zebra/zserv.h"
+#include "zebra/rt.h"
#include "zebra/zebra_mpls.h"
-int
-mpls_str2label (const char *label_str, u_int8_t *num_labels,
- mpls_label_t *labels)
-{
- return 0;
-}
-
-char *
-mpls_label2str (u_int8_t num_labels, mpls_label_t *labels,
- char *buf, int len)
-{
- return NULL;
-}
-
-int
-zebra_mpls_lsp_label_consistent (struct zebra_vrf *zvrf, mpls_label_t in_label,
- mpls_label_t out_label, enum nexthop_types_t gtype,
- union g_addr *gate, char *ifname, ifindex_t ifindex)
-{
- return 1;
-}
-
-int
-zebra_mpls_static_lsp_add (struct zebra_vrf *zvrf, mpls_label_t in_label,
- mpls_label_t out_label, enum nexthop_types_t gtype,
- union g_addr *gate, char *ifname, ifindex_t ifindex)
-{
- return 0;
-}
-
-int
-zebra_mpls_static_lsp_del (struct zebra_vrf *zvrf, mpls_label_t in_label,
- enum nexthop_types_t gtype, union g_addr *gate,
- char *ifname, ifindex_t ifindex)
-{
- return 0;
-}
-
-void
-zebra_mpls_lsp_schedule (struct zebra_vrf *zvrf)
-{
-}
-
-void
-zebra_mpls_print_lsp (struct vty *vty, struct zebra_vrf *zvrf, mpls_label_t label,
- u_char use_json)
-{
-}
-
-void
-zebra_mpls_print_lsp_table (struct vty *vty, struct zebra_vrf *zvrf,
- u_char use_json)
-{
-}
-
-int
-zebra_mpls_write_lsp_config (struct vty *vty, struct zebra_vrf *zvrf)
-{
- return 0;
-}
-
-void
-zebra_mpls_close_tables (struct zebra_vrf *zvrf)
-{
-}
-
-void
-zebra_mpls_init_tables (struct zebra_vrf *zvrf)
-{
-}
-
-void
-zebra_mpls_init (void)
-{
-}
+int kernel_add_lsp (zebra_lsp_t *lsp) { return 0; }
+int kernel_upd_lsp (zebra_lsp_t *lsp) { return 0; }
+int kernel_del_lsp (zebra_lsp_t *lsp) { return 0; }
projects / matthieu / frr.git / commitdiff