https://bugs.wireshark.org/bugzilla/show_bug.cgi?id=5691
Summary: dumpcap ring buffer file size limitation
Product: Wireshark
Version: unspecified
Platform: All
OS/Version: Windows 7
Status: NEW
Severity: Major
Priority: Low
Component: Extras
AssignedTo: wireshark-bugs@xxxxxxxxxxxxx
ReportedBy: canney@xxxxxxxxxxxxxx
Build Information:
Compiled (32-bit) with GLib 2.22.4, with WinPcap (version unknown), with libz
1.2.3, without POSIX capabilities, without libpcre, with SMI 0.4.8, with c-ares
1.7.1, with Lua 5.1, without Python, with GnuTLS 2.8.5, with Gcrypt 1.4.5, with
MIT Kerberos, with GeoIP.
Running on 32-bit Windows 7, build 7600, with WinPcap version 4.1.2 (packet.dll
version 4.1.0.2001), based on libpcap version 1.0 branch 1_0_rel0b (20091008).
Built using Microsoft Visual C++ 9.0 build 30729
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dumpcap has a ring buffer file size limitation of 2GB. I would love to see
this increased to something much larger (50-100GB)
$ grep autostop_filesize capture_opts.h
gboolean has_autostop_filesize; /*< TRUE if maximum capture file size
gint32 autostop_filesize; /*< Maximum capture file size */
$
Since it is a signed 32 bit integer, it will only go up to 2^31 (2GB).
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