TIME STAMP WIRESHARK PCAP SOFTWARE
TIME STAMP WIRESHARK PCAP CODE

I didn't try to catch how this is currently handled by Scapy. Because the two time scales are different, it is difficult to reference specific events in the log file with the packet details in the capture file(s). CDRouter uses the time of day (in hh:mm:ss format) for all time stamps. Profishark: end of options ( 0x00 0x00 0x00 0x00) is left - if_tsresol is strippedīlock -> Link type / snap length (don't know if you'd like to interpret link type)Īdditionally, I'd like to mention that multiple interfaces with different if_tsresol can exist in a single PcapNG file. By default, Wireshark displays all time stamps in absolute time (seconds) since the beginning of the capture. Wireshark: if_name option is corrupted - not catched, if_tsresol option follows later - interpreted block does not contain the first 8 octets (block type and block total length) and the last 4 octets (block total length)Īfterwards, options get set as options = block. In Wireshark, if I choose one of the 'Seconds since' time formats, the time displayed looks reasonable.

TIME STAMP WIRESHARK PCAP SOFTWARE

For display purposes, packet capture software such as Wireshark automatically converts these timestamps into the local time of the machine used to examine the.

The data passed as parameter block to function read_block_idb does not contain the complete IDB as shown above. The time stamp is a 64-but unsigned binary number taken from the z/architecture TOD clock (sometimes called the STCK time). pcap file in GMT/UTC format, which can easily be verified by examining the value of thiszone in the global header.

TIME STAMP WIRESHARK PCAP CODE

09 00 01 00 (Option Code = if_tsresol / Option Length = 1)Ġ9 00 00 00 (if_tsresol = 9, padded to 32 bits)Īs we can see, option if_tsresol is set by ProfiShark.

Time stamp wireshark pcap