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       1                 :            : /*
       2                 :            :  * Copyright (c) 2009, 2010, 2011, 2012, 2013, 2014 Nicira, Inc.
       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 <config.h>
      18                 :            : #undef NDEBUG
      19                 :            : #include "flow.h"
      20                 :            : #include <assert.h>
      21                 :            : #include <errno.h>
      22                 :            : #include <stdlib.h>
      23                 :            : #include <string.h>
      24                 :            : #include "classifier.h"
      25                 :            : #include "openflow/openflow.h"
      26                 :            : #include "openvswitch/ofp-print.h"
      27                 :            : #include "openvswitch/ofp-util.h"
      28                 :            : #include "openvswitch/ofpbuf.h"
      29                 :            : #include "openvswitch/vlog.h"
      30                 :            : #include "ovstest.h"
      31                 :            : #include "dp-packet.h"
      32                 :            : #include "pcap-file.h"
      33                 :            : #include "timeval.h"
      34                 :            : #include "util.h"
      35                 :            : 
      36                 :            : static void
      37                 :          1 : test_flows_main(int argc OVS_UNUSED, char *argv[] OVS_UNUSED)
      38                 :            : {
      39                 :            :     struct ofp10_match expected_match;
      40                 :            :     FILE *flows, *pcap;
      41                 :            :     int retval;
      42                 :          1 :     int n = 0, errors = 0;
      43                 :            : 
      44                 :          1 :     set_program_name(argv[0]);
      45                 :            : 
      46                 :          1 :     flows = fopen(argv[1], "rb");
      47         [ -  + ]:          1 :     if (!flows) {
      48                 :          0 :         ovs_fatal(errno, "failed to open %s", argv[1]);
      49                 :            :     }
      50                 :          1 :     pcap = fopen(argv[2], "rb");
      51         [ -  + ]:          1 :     if (!pcap) {
      52                 :          0 :         ovs_fatal(errno, "failed to open %s", argv[2]);
      53                 :            :     }
      54                 :            : 
      55                 :          1 :     retval = ovs_pcap_read_header(pcap);
      56         [ -  + ]:          1 :     if (retval) {
      57                 :          0 :         ovs_fatal(retval > 0 ? retval : 0, "reading pcap header failed");
      58                 :            :     }
      59                 :            : 
      60         [ +  + ]:        248 :     while (fread(&expected_match, sizeof expected_match, 1, flows)) {
      61                 :            :         struct dp_packet *packet;
      62                 :            :         struct ofp10_match extracted_match;
      63                 :            :         struct match match;
      64                 :            :         struct flow flow;
      65                 :        247 :         n++;
      66                 :            : 
      67                 :        247 :         retval = ovs_pcap_read(pcap, &packet, NULL);
      68         [ -  + ]:        247 :         if (retval == EOF) {
      69                 :          0 :             ovs_fatal(0, "unexpected end of file reading pcap file");
      70         [ -  + ]:        247 :         } else if (retval) {
      71                 :          0 :             ovs_fatal(retval, "error reading pcap file");
      72                 :            :         }
      73                 :            : 
      74                 :        247 :         flow_extract(packet, &flow);
      75                 :        247 :         flow.in_port.ofp_port = u16_to_ofp(1);
      76                 :            : 
      77                 :        247 :         match_wc_init(&match, &flow);
      78                 :        247 :         ofputil_match_to_ofp10_match(&match, &extracted_match);
      79                 :            : 
      80         [ -  + ]:        247 :         if (memcmp(&expected_match, &extracted_match, sizeof expected_match)) {
      81                 :          0 :             char *exp_s = ofp10_match_to_string(&expected_match, 2);
      82                 :          0 :             char *got_s = ofp10_match_to_string(&extracted_match, 2);
      83                 :          0 :             errors++;
      84                 :          0 :             printf("mismatch on packet #%d (1-based).\n", n);
      85                 :          0 :             printf("Packet:\n");
      86                 :          0 :             ofp_print_packet(stdout, dp_packet_data(packet), dp_packet_size(packet));
      87                 :          0 :             ovs_hex_dump(stdout, dp_packet_data(packet), dp_packet_size(packet), 0, true);
      88                 :          0 :             match_print(&match);
      89                 :          0 :             printf("Expected flow:\n%s\n", exp_s);
      90                 :          0 :             printf("Actually extracted flow:\n%s\n", got_s);
      91                 :          0 :             ovs_hex_dump(stdout, &expected_match, sizeof expected_match, 0, false);
      92                 :          0 :             ovs_hex_dump(stdout, &extracted_match, sizeof extracted_match, 0, false);
      93                 :          0 :             printf("\n");
      94                 :          0 :             free(exp_s);
      95                 :          0 :             free(got_s);
      96                 :            :         }
      97                 :            : 
      98                 :        247 :         dp_packet_delete(packet);
      99                 :            :     }
     100                 :          1 :     printf("checked %d packets, %d errors\n", n, errors);
     101                 :          1 :     exit(errors != 0);
     102                 :            : }
     103                 :            : 
     104                 :       1175 : OVSTEST_REGISTER("test-flows", test_flows_main);