diff options
Diffstat (limited to 'src/network.h')
| -rw-r--r-- | src/network.h | 52 |
1 files changed, 52 insertions, 0 deletions
diff --git a/src/network.h b/src/network.h new file mode 100644 index 0000000..9d5c7de --- /dev/null +++ b/src/network.h @@ -0,0 +1,52 @@ +/* + * Copyright (c) 2016-2021, OARC, Inc. + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in + * the documentation and/or other materials provided with the + * distribution. + * + * 3. Neither the name of the copyright holder nor the names of its + * contributors may be used to endorse or promote products derived + * from this software without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS + * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT + * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS + * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE + * COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, + * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, + * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; + * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER + * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT + * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN + * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE + * POSSIBILITY OF SUCH DAMAGE. + */ + +#include "dnscap.h" + +#ifndef __dnscap_network_h +#define __dnscap_network_h + +tcpstate_ptr tcpstate_find(iaddr from, iaddr to, unsigned sport, unsigned dport, time_t t); +tcpstate_ptr tcpstate_new(iaddr from, iaddr to, unsigned sport, unsigned dport); +void dl_pkt(u_char* user, const struct pcap_pkthdr* hdr, const u_char* pkt, const char* name, const int dlt); +void discard(tcpstate_ptr tcpstate, const char* msg); +void network_pkt(const char* descr, my_bpftimeval ts, unsigned pf, const u_char* opkt, size_t olen); +uint16_t in_checksum(const u_char* ptr, size_t len); + +void layer_pkt(u_char* user, const pcap_thread_packet_t* packet, const u_char* payload, size_t length); +void network_pkt2(const char* descr, my_bpftimeval ts, const pcap_thread_packet_t* packet, const u_char* payload, size_t length); + +size_t calcdnslen(const u_char* dnspkt, size_t dnslen); + +#endif /* __dnscap_network_h */ |