2 * Copyright (c) 2016 Cisco and/or its affiliates.
3 * Licensed under the Apache License, Version 2.0 (the "License");
4 * you may not use this file except in compliance with the License.
5 * You may obtain a copy of the License at:
7 * http://www.apache.org/licenses/LICENSE-2.0
9 * Unless required by applicable law or agreed to in writing, software
10 * distributed under the License is distributed on an "AS IS" BASIS,
11 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
12 * See the License for the specific language governing permissions and
13 * limitations under the License.
16 #include <vnet/vnet.h>
17 #include <vnet/lisp-cp/lisp_types.h>
19 #define IP_DF 0x4000 /* don't fragment */
22 pkt_push_ip (vlib_main_t * vm, vlib_buffer_t *b, ip_address_t *src,
23 ip_address_t *dst, u32 proto);
26 pkt_push_udp_and_ip (vlib_main_t * vm, vlib_buffer_t *b, u16 sp, u16 dp,
27 ip_address_t *sip, ip_address_t *dip);
30 pkt_push_ecm_hdr (vlib_buffer_t *b);
33 vlib_buffer_get_tail (vlib_buffer_t *b)
35 return b->data + b->current_data + b->current_length;
39 vlib_buffer_put_uninit (vlib_buffer_t *b, u8 size)
41 /* XXX should make sure there's enough space! */
42 void * p = vlib_buffer_get_tail (b);
43 b->current_length += size;
48 vlib_buffer_push_uninit (vlib_buffer_t *b, u8 size)
50 /* XXX should make sure there's enough space! */
51 ASSERT (b->current_data > size);
52 b->current_data -= size;
53 b->current_length += size;
55 return vlib_buffer_get_current(b);
59 vlib_buffer_make_headroom (vlib_buffer_t *b, u8 size)
61 /* XXX should make sure there's enough space! */
62 b->current_data += size;
63 return vlib_buffer_get_current (b);
67 vlib_buffer_pull (vlib_buffer_t * b, u8 size)
69 void * data = vlib_buffer_get_current (b);
70 vlib_buffer_advance (b, size);