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-rw-r--r--src/vnet/interface.c42
1 files changed, 41 insertions, 1 deletions
diff --git a/src/vnet/interface.c b/src/vnet/interface.c
index 44ea52a870d..e79722d0461 100644
--- a/src/vnet/interface.c
+++ b/src/vnet/interface.c
@@ -1610,20 +1610,58 @@ vnet_hw_interface_change_mac_address (vnet_main_t * vnm, u32 hw_if_index,
(vnm, hw_if_index, mac_address);
}
+static int
+vnet_sw_interface_check_table_same (u32 unnumbered_sw_if_index,
+ u32 ip_sw_if_index)
+{
+ vec_validate (ip4_main.fib_index_by_sw_if_index, unnumbered_sw_if_index);
+ vec_validate (ip4_main.mfib_index_by_sw_if_index, unnumbered_sw_if_index);
+ vec_validate (ip6_main.fib_index_by_sw_if_index, unnumbered_sw_if_index);
+ vec_validate (ip6_main.mfib_index_by_sw_if_index, unnumbered_sw_if_index);
+
+ vec_validate (ip4_main.fib_index_by_sw_if_index, ip_sw_if_index);
+ vec_validate (ip4_main.mfib_index_by_sw_if_index, ip_sw_if_index);
+ vec_validate (ip6_main.fib_index_by_sw_if_index, ip_sw_if_index);
+ vec_validate (ip6_main.mfib_index_by_sw_if_index, ip_sw_if_index);
+
+ if (ip4_main.fib_index_by_sw_if_index[unnumbered_sw_if_index] !=
+ ip4_main.fib_index_by_sw_if_index[ip_sw_if_index])
+ return VNET_API_ERROR_UNEXPECTED_INTF_STATE;
+
+ if (ip4_main.mfib_index_by_sw_if_index[unnumbered_sw_if_index] !=
+ ip4_main.mfib_index_by_sw_if_index[ip_sw_if_index])
+ return VNET_API_ERROR_UNEXPECTED_INTF_STATE;
+
+ if (ip6_main.fib_index_by_sw_if_index[unnumbered_sw_if_index] !=
+ ip6_main.fib_index_by_sw_if_index[ip_sw_if_index])
+ return VNET_API_ERROR_UNEXPECTED_INTF_STATE;
+
+ if (ip6_main.mfib_index_by_sw_if_index[unnumbered_sw_if_index] !=
+ ip6_main.mfib_index_by_sw_if_index[ip_sw_if_index])
+ return VNET_API_ERROR_UNEXPECTED_INTF_STATE;
+
+ return 0;
+}
+
/* update the unnumbered state of an interface*/
-void
+int
vnet_sw_interface_update_unnumbered (u32 unnumbered_sw_if_index,
u32 ip_sw_if_index, u8 enable)
{
vnet_main_t *vnm = vnet_get_main ();
vnet_sw_interface_t *si;
u32 was_unnum;
+ int rv = 0;
si = vnet_get_sw_interface (vnm, unnumbered_sw_if_index);
was_unnum = (si->flags & VNET_SW_INTERFACE_FLAG_UNNUMBERED);
if (enable)
{
+ rv = vnet_sw_interface_check_table_same (unnumbered_sw_if_index,
+ ip_sw_if_index);
+ if (rv != 0)
+ return rv;
si->flags |= VNET_SW_INTERFACE_FLAG_UNNUMBERED;
si->unnumbered_sw_if_index = ip_sw_if_index;
@@ -1660,6 +1698,8 @@ vnet_sw_interface_update_unnumbered (u32 unnumbered_sw_if_index,
ip4_sw_interface_enable_disable (unnumbered_sw_if_index, enable);
ip6_sw_interface_enable_disable (unnumbered_sw_if_index, enable);
}
+
+ return 0;
}
vnet_l3_packet_type_t