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1 /*
2  * Copyright 2023, The Android Open Source Project
3  *
4  * Licensed under the Apache License, Version 2.0 (the "License");
5  * you may not use this file except in compliance with the License.
6  * You may obtain a copy of the License at
7  *
8  * http://www.apache.org/licenses/LICENSE-2.0
9  *
10  * Unless required by applicable law or agreed to in writing, software
11  * distributed under the License is distributed on an "AS IS" BASIS,
12  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13  * See the License for the specific language governing permissions and
14  * limitations under the License.
15  */
16 
17 #include <string.h>
18 
19 #include "apf_interpreter.h"
20 #include "test_buf_allocator.h"
21 
22 uint8_t apf_test_buffer[sizeof(apf_test_buffer)];
23 uint32_t apf_test_tx_packet_len;
24 uint8_t apf_test_tx_dscp;
25 
26 /**
27  * Test implementation of apf_allocate_buffer()
28  *
29  * Clean up the apf_test_buffer and return the pointer to beginning of the buffer region.
30  */
apf_allocate_buffer(void * ctx,uint32_t size)31 uint8_t* apf_allocate_buffer(__attribute__ ((unused)) void* ctx, uint32_t size) {
32   if (size > sizeof(apf_test_buffer)) {
33     return NULL;
34   }
35   return apf_test_buffer;
36 }
37 
38 /**
39  * Test implementation of apf_transmit_buffer()
40  *
41  * Copy the content of allocated buffer to the apf_test_tx_packet region.
42  */
apf_transmit_buffer(void * ctx,uint8_t * ptr,uint32_t len,uint8_t dscp)43 int apf_transmit_buffer(__attribute__((unused)) void* ctx, uint8_t* ptr,
44                         uint32_t len, uint8_t dscp) {
45   if (len && len < ETH_HLEN) return -1;
46   if (ptr != apf_test_buffer) return -1;
47   apf_test_tx_packet_len = len;
48   apf_test_tx_dscp = dscp;
49   return 0;
50 }
51