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appneta / tcpreplay

Pcap editing and replay tools for *NIX and Windows - Users please download source from
http://tcpreplay.appneta.com/wiki/installation.html#downloads
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[Bug] Floating point exception - reported in Tcpreplay mailing list #667

Closed fklassen closed 2 years ago

fklassen commented 3 years ago

Floating point exception:

VirtualBox:~/$ cat /etc/os-release NAME="Ubuntu" VERSION="20.04.2 LTS (Focal Fossa)" ID=ubuntu ID_LIKE=debian PRETTY_NAME="Ubuntu 20.04.2 LTS" VERSION_ID="20.04" HOME_URL="https://www.ubuntu.com/" SUPPORT_URL="https://help.ubuntu.com/" BUG_REPORT_URL="https://bugs.launchpad.net/ubuntu/" PRIVACY_POLICY_URL="https://www.ubuntu.com/legal/terms-and-policies/privacy-policy" VERSION_CODENAME=focal UBUNTU_CODENAME=focal

To Reproduce

VirtualBox:~/$ sudo tcpreplay --version tcpreplay version: 4.3.2 (build git:v4.3.2) (debug) Copyright 2013-2018 by Fred Klassen - AppNeta Copyright 2000-2012 by Aaron Turner The entire Tcpreplay Suite is licensed under the GPLv3 Cache file supported: 04 Not compiled with libdnet. Compiled against libpcap: 1.9.1 64 bit packet counters: enabled Verbose printing via tcpdump: enabled Packet editing: disabled Fragroute engine: disabled Injection method: PF_PACKET send() Not compiled with netmap

VirtualBox:~/$ sudo tcpreplay -v -d 5 -i enp0s3 -pps=100 --loop 5000 webcaster_data.pcap DEBUG1 in sendpacket.c:sendpacket_open_pf() line 888: sendpacket: using PF_PACKET DEBUG5 in utils.c:_our_safe_malloc() line 60: Malloc'd 1248 bytes in sendpacket.c:sendpacket_open_pf() line 963 DEBUG5 in tcpdump.c:tcpdump_open() line 219: Opening tcpdump debug file: tcpdump.debug DEBUG2 in tcpdump.c:tcpdump_open() line 229: Prepping tcpdump options... DEBUG2 in tcpdump.c:tcpdump_fill_in_options() line 372: [child] Will execute: tcpdump -n -l -r - DEBUG5 in utils.c:_our_safe_malloc() line 60: Malloc'd 3 bytes in tcpdump.c:tcpdump_fill_in_options() line 380 DEBUG5 in utils.c:_our_safe_malloc() line 60: Malloc'd 3 bytes in tcpdump.c:tcpdump_fill_in_options() line 394 DEBUG5 in utils.c:_our_safe_malloc() line 60: Malloc'd 3 bytes in tcpdump.c:tcpdump_fill_in_options() line 394 DEBUG2 in tcpdump.c:tcpdump_open() line 232: Starting tcpdump... DEBUG2 in tcpdump.c:tcpdump_open() line 242: tcpdump pid: 20184 DEBUG2 in tcpdump.c:tcpdump_open() line 248: [parent] closing child read/write fd 8/7 DEBUG2 in send_packets.c:send_packets() line 539: packet 1 caplen 932 DEBUG4 in send_packets.c:send_packets() line 584: This packet time: 1618236067s 66264usec DEBUG2 in tcpdump.c:tcpdump_open() line 242: tcpdump pid: 0 DEBUG2 in tcpdump.c:tcpdump_open() line 270: [child] started the kid DEBUG2 in tcpdump.c:tcpdump_open() line 287: [child] closing in fds 8/7/6/9 DEBUG2 in tcpdump.c:tcpdump_open() line 295: [child] Exec'ing tcpdump... reading from file -, link-type LINUX_SLL (Linux cooked v1) DEBUG4 in tcpdump.c:tcpdump_print() line 188: read 83 byte from tcpdump 07:01:07.1618236067 IP 192.168.99.100.45827 > 192.168.99.101.3939: UDP, length 888 DEBUG2 in send_packets.c:send_packets() line 641: Sending packet #1 DEBUG2 in send_packets.c:send_packets() line 539: packet 2 caplen 932 DEBUG4 in send_packets.c:send_packets() line 584: This packet time: 1618236067s 76256usec Floating point exception

System (please complete the following information):

fklassen commented 2 years ago

This is most likely a duplicate of #679 which had an invalid calculation when using --pps with long-running executions. Fix available in 4.4.0.