diff options
Diffstat (limited to 'src/plugins/dhcp/dhcp6_proxy_node.c')
| -rw-r--r-- | src/plugins/dhcp/dhcp6_proxy_node.c | 35 |
1 files changed, 28 insertions, 7 deletions
diff --git a/src/plugins/dhcp/dhcp6_proxy_node.c b/src/plugins/dhcp/dhcp6_proxy_node.c index 95e5c9272f5..3231f28b1fd 100644 --- a/src/plugins/dhcp/dhcp6_proxy_node.c +++ b/src/plugins/dhcp/dhcp6_proxy_node.c @@ -595,6 +595,8 @@ dhcpv6_proxy_to_client_input (vlib_main_t * vm, u32 sw_if_index = ~0; u32 original_sw_if_index = ~0; vnet_sw_interface_t *si0; + u32 inner_vlan = (u32) ~ 0; + u32 outer_vlan = (u32) ~ 0; u32 error0 = (u32) ~ 0; vnet_sw_interface_t *swif; dhcpv6_option_t *r0 = 0, *o; @@ -765,7 +767,19 @@ dhcpv6_proxy_to_client_input (vlib_main_t * vm, vlib_buffer_advance (b0, -(sizeof (ethernet_header_t))); si0 = vnet_get_sw_interface (vnm, original_sw_if_index); if (si0->type == VNET_SW_INTERFACE_TYPE_SUB) - vlib_buffer_advance (b0, -4 /* space for VLAN tag */ ); + { + if (si0->sub.eth.flags.one_tag == 1) + { + vlib_buffer_advance (b0, -4 /* space for 1 VLAN tag */ ); + outer_vlan = (si0->sub.eth.outer_vlan_id << 16) | 0x86dd; + } + else if (si0->sub.eth.flags.two_tags == 1) + { + vlib_buffer_advance (b0, -8 /* space for 2 VLAN tag */ ); + outer_vlan = (si0->sub.eth.outer_vlan_id << 16) | 0x8100; + inner_vlan = (si0->sub.eth.inner_vlan_id << 16) | 0x86dd; + } + } mac0 = vlib_buffer_get_current (b0); @@ -773,15 +787,22 @@ dhcpv6_proxy_to_client_input (vlib_main_t * vm, ei0 = pool_elt_at_index (em->interfaces, hi0->hw_instance); clib_memcpy (mac0->src_address, ei0->address, sizeof (ei0->address)); clib_memset (&mac0->dst_address, 0xff, sizeof (mac0->dst_address)); - mac0->type = (si0->type == VNET_SW_INTERFACE_TYPE_SUB) ? - clib_net_to_host_u16 (0x8100) : clib_net_to_host_u16 (0x86dd); - if (si0->type == VNET_SW_INTERFACE_TYPE_SUB) + if (si0->type == VNET_SW_INTERFACE_TYPE_SUB && outer_vlan != (u32) ~ 0) { + mac0->type = (si0->sub.eth.flags.dot1ad == 1) ? + clib_net_to_host_u16 (0x88a8) : clib_net_to_host_u16 (0x8100); u32 *vlan_tag = (u32 *) (mac0 + 1); - u32 tmp; - tmp = (si0->sub.id << 16) | 0x0800; - *vlan_tag = clib_host_to_net_u32 (tmp); + *vlan_tag = clib_host_to_net_u32 (outer_vlan); + if (inner_vlan != (u32) ~ 0) + { + u32 *inner_vlan_tag = (u32 *) (vlan_tag + 1); + *inner_vlan_tag = clib_host_to_net_u32 (inner_vlan); + } + } + else + { + mac0->type = clib_net_to_host_u16 (0x86dd); } /* $$$ consider adding a dynamic next to the graph node, for performance */ |