/* * pcap2cinit.c: convert pcap input to a u8 ** initializer * * Copyright (c) 2018 Cisco and/or its affiliates. * Licensed under the Apache License, Version 2.0 (the "License"); * you may not use this file except in compliance with the License. * You may obtain a copy of the License at: * * http://www.apache.org/licenses/LICENSE-2.0 * * Unless required by applicable law or agreed to in writing, software * distributed under the License is distributed on an "AS IS" BASIS, * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. * See the License for the specific language governing permissions and * limitations under the License. */ /** * @file * @brief Functions to convert PCAP file format to a u8 ** initializer * */ #include <vppinfra/pcap.h> #include <vnet/ethernet/packet.h> #include <stdio.h> pcap_main_t pcap_main; /** * @brief Conversion of PCAP file to u8 ** initializer stanzas * * @param *pm - pcap_main_t * @param *ofp - FILE * * @return rc - int * */ int pcap2cinit (pcap_main_t * pm, FILE * ofp) { int i, j; u8 *pkt; for (i = 0; i < vec_len (pm->packets_read); i++) { pkt = (u8 *) pm->packets_read[i]; fformat (ofp, "static u8 __pcap_pkt%d [] = {\n ", i); for (j = 0; j < vec_len (pkt); j++) { if (((j + 1) % 8) == 0) fformat (ofp, "0x%02x,\n ", pkt[j]); else fformat (ofp, "0x%02x, ", pkt[j]); } fformat (ofp, "\n};\n"); } fformat (ofp, "static u8 *__pcap_pkts [] = {\n"); for (i = 0; i < vec_len (pm->packets_read); i++) fformat (ofp, " __pcap_pkt%d, \n", i); fformat (ofp, "};\n"); return 0; } /** * @brief pcap2pg. * usage: pcap2pg -i <input-file> [-o <output-file>] */ int main (int argc, char **argv) { unformat_input_t input; pcap_main_t *pm = &pcap_main; u8 *input_file = 0, *output_file = 0; FILE *ofp; clib_error_t *error; unformat_init_command_line (&input, argv); while (unformat_check_input (&input) != UNFORMAT_END_OF_INPUT) { if (unformat (&input, "-i %s", &input_file) || unformat (&input, "input %s", &input_file)) ; else if (unformat (&input, "-o %s", &output_file) || unformat (&input, "output %s", &output_file)) ; else { usage: fformat (stderr, "usage: pcap2pg -i <input-file> [-o <output-file>]\n"); exit (1); } } if (input_file == 0) goto usage; pm->file_name = (char *) input_file; error = pcap_read (pm); if (error) { clib_error_report (error); exit (1); } if (output_file) { ofp = fopen ((char *) output_file, "w+"); if (ofp == NULL) { clib_unix_warning ("Couldn't create '%s'", output_file); exit (1); } } else { ofp = stdout; } pcap2cinit (pm, ofp); fclose (ofp); exit (0); } /* * fd.io coding-style-patch-verification: ON * * Local Variables: * eval: (c-set-style "gnu") * End: */