isisd: implement 'max-area-addresses-mismatch' notification

[mirror_frr.git] / zebra / zebra_mpls_netlink.c

diff --git a/zebra/zebra_mpls_netlink.c b/zebra/zebra_mpls_netlink.c
index d0c4acb3709a6f2b5822878ff78dbc7847aed795..c4ab316d0b9ce388655c2642b9937a1a0531f8bf 100644 (file)
--- a/zebra/zebra_mpls_netlink.c
+++ b/zebra/zebra_mpls_netlink.c
@@ -19,6 +19,9 @@
  */
 
 #include <zebra.h>
+
+#ifdef HAVE_NETLINK
+
 #include "zebra/rt.h"
 #include "zebra/rt_netlink.h"
 #include "zebra/zebra_mpls.h"
@@ -26,22 +29,22 @@
 /*
  * Install Label Forwarding entry into the kernel.
  */
-int
-kernel_add_lsp (zebra_lsp_t *lsp)
+enum zebra_dplane_result kernel_add_lsp(zebra_lsp_t *lsp)
 {
-  int ret;
+       int ret;
 
-  if (!lsp || !lsp->best_nhlfe) // unexpected
-    return -1;
+       if (!lsp || !lsp->best_nhlfe) { // unexpected
+               kernel_lsp_pass_fail(lsp, ZEBRA_DPLANE_INSTALL_FAILURE);
+               return ZEBRA_DPLANE_REQUEST_FAILURE;
+       }
 
-  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);
+       ret = netlink_mpls_multipath(RTM_NEWROUTE, lsp);
 
-  return ret;
+       kernel_lsp_pass_fail(lsp,
+                            (!ret) ? ZEBRA_DPLANE_INSTALL_SUCCESS
+                                   : ZEBRA_DPLANE_INSTALL_FAILURE);
+
+       return ZEBRA_DPLANE_REQUEST_SUCCESS;
 }
 
 /*
@@ -55,58 +58,61 @@ kernel_add_lsp (zebra_lsp_t *lsp)
  * 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)
+enum zebra_dplane_result kernel_upd_lsp(zebra_lsp_t *lsp)
 {
-  int ret;
-
-  if (!lsp || !lsp->best_nhlfe) // unexpected
-    return -1;
+       int ret;
 
-  UNSET_FLAG (lsp->flags, LSP_FLAG_CHANGED);
+       if (!lsp || !lsp->best_nhlfe) { // unexpected
+               kernel_lsp_pass_fail(lsp, ZEBRA_DPLANE_INSTALL_FAILURE);
+               return ZEBRA_DPLANE_REQUEST_FAILURE;
+       }
 
-  /* First issue a DEL and clear the installed flag. */
-  netlink_mpls_multipath (RTM_DELROUTE, lsp);
-  UNSET_FLAG (lsp->flags, LSP_FLAG_INSTALLED);
+       ret = netlink_mpls_multipath(RTM_NEWROUTE, lsp);
 
-  /* 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);
+       kernel_lsp_pass_fail(lsp,
+                            (!ret) ? ZEBRA_DPLANE_INSTALL_SUCCESS
+                                   : ZEBRA_DPLANE_INSTALL_FAILURE);
 
-  return ret;
+       return ZEBRA_DPLANE_REQUEST_SUCCESS;
 }
 
 /*
  * Delete Label Forwarding entry from the kernel.
  */
-int
-kernel_del_lsp (zebra_lsp_t *lsp)
+enum zebra_dplane_result kernel_del_lsp(zebra_lsp_t *lsp)
 {
-  if (!lsp) // unexpected
-    return -1;
+       int ret;
 
-  if (CHECK_FLAG (lsp->flags, LSP_FLAG_INSTALLED))
-    {
-      netlink_mpls_multipath (RTM_DELROUTE, lsp);
-      UNSET_FLAG (lsp->flags, LSP_FLAG_INSTALLED);
-    }
+       if (!lsp) { // unexpected
+               kernel_lsp_pass_fail(lsp, ZEBRA_DPLANE_DELETE_FAILURE);
+               return ZEBRA_DPLANE_REQUEST_FAILURE;
+       }
 
-  return 0;
+       if (!CHECK_FLAG(lsp->flags, LSP_FLAG_INSTALLED)) {
+               kernel_lsp_pass_fail(lsp, ZEBRA_DPLANE_DELETE_FAILURE);
+               return ZEBRA_DPLANE_REQUEST_FAILURE;
+       }
+
+       ret = netlink_mpls_multipath(RTM_DELROUTE, lsp);
+
+       kernel_lsp_pass_fail(lsp,
+                            (!ret) ? ZEBRA_DPLANE_DELETE_SUCCESS
+                                   : ZEBRA_DPLANE_DELETE_FAILURE);
+
+       return ZEBRA_DPLANE_REQUEST_SUCCESS;
 }
 
-int
-mpls_kernel_init (void)
+int mpls_kernel_init(void)
 {
-  struct stat st;
+       struct stat st;
 
-  /*
-   * Check if the MPLS module is loaded in the kernel.
-   */
-  if (stat ("/proc/sys/net/mpls", &st) != 0)
-    return -1;
+       /*
+        * Check if the MPLS module is loaded in the kernel.
+        */
+       if (stat("/proc/sys/net/mpls", &st) != 0)
+               return -1;
 
-  return 0;
+       return 0;
 };
+
+#endif /* HAVE_NETLINK */