- if (vlib_buffer_length_in_chain (vm, p0) >
- adj0[0].rewrite_header.max_l3_packet_bytes)
- {
- error0 = IP4_ERROR_MTU_EXCEEDED;
- next0 = IP4_REWRITE_NEXT_ICMP_ERROR;
- icmp4_error_set_vnet_buffer
- (p0, ICMP4_destination_unreachable,
- ICMP4_destination_unreachable_fragmentation_needed_and_dont_fragment_set,
- 0);
- }
- if (vlib_buffer_length_in_chain (vm, p1) >
- adj1[0].rewrite_header.max_l3_packet_bytes)
- {
- error1 = IP4_ERROR_MTU_EXCEEDED;
- next1 = IP4_REWRITE_NEXT_ICMP_ERROR;
- icmp4_error_set_vnet_buffer
- (p1, ICMP4_destination_unreachable,
- ICMP4_destination_unreachable_fragmentation_needed_and_dont_fragment_set,
- 0);
- }
+ ip4_mtu_check (p0, clib_net_to_host_u16 (ip0->length),
+ adj0[0].rewrite_header.max_l3_packet_bytes,
+ ip0->flags_and_fragment_offset &
+ clib_host_to_net_u16 (IP4_HEADER_FLAG_DONT_FRAGMENT),
+ &next0, &error0);
+ ip4_mtu_check (p1, clib_net_to_host_u16 (ip1->length),
+ adj1[0].rewrite_header.max_l3_packet_bytes,
+ ip1->flags_and_fragment_offset &
+ clib_host_to_net_u16 (IP4_HEADER_FLAG_DONT_FRAGMENT),
+ &next1, &error1);