Wireshark mailing list archives
Re: How Wireshark supports monitor mode for WLAN 802.11 adapter in Windows?
From: Guy Harris <guy () alum mit edu>
Date: Fri, 1 Jan 2016 11:51:17 -0800
On Jan 1, 2016, at 6:11 AM, Yang Luo <hsluoyb () gmail com> wrote:
So I think a suitable modification would be adding check_function_exists( "pcap_create" HAVE_PCAP_CREATE ) to Win32 too, as below: if( WIN32 ) # # This is always the case with WinPcap. # check_function_exists( "pcap_create" HAVE_PCAP_CREATE ) <----------------- add this set(CAN_SET_CAPTURE_BUFFER_SIZE TRUE) else() check_function_exists( "pcap_create" HAVE_PCAP_CREATE ) if ( HAVE_PCAP_CREATE ) # # For libpcap, we can set the buffer size if we have pcap_create(). # set( CAN_SET_CAPTURE_BUFFER_SIZE TRUE ) endif() endif()
No, just move check_function_exists( "pcap_create" HAVE_PCAP_CREATE ) above the if (WIN32) - and combine the two tests: check_function_exists( "pcap_create" HAVE_PCAP_CREATE ) if( HAVE_PCAP_CREATE OR WIN32 ) # # If we have pcap_create(), we have pcap_set_buffer_size(), and # can set the capture buffer size. # # Otherwise, if this is Windows, we have pcap_setbuff(), and can # set the capture buffer size. # set( CAN_SET_CAPTURE_BUFFER_SIZE TRUE ) endif()
As WinPcap always has pcap_create function,
Versions of prior to 4.1 WinPcap don't have it, so if somebody has an earlier version's developer kit installed, that test won't find pcap_create().
In Wireshark the monitor UI elements like buttons will always show up. I think this is inevitable as this is a compile-time option instead of a run-time option.
Well, we *could*, on Windows, have the code check, at run time, whether we have pcap_create() or not, allowing code built with a newer version of WinPcap to work with older versions. That would make dumpcap more complicated, though. ___________________________________________________________________________ Sent via: Wireshark-dev mailing list <wireshark-dev () wireshark org> Archives: https://www.wireshark.org/lists/wireshark-dev Unsubscribe: https://wireshark.org/mailman/options/wireshark-dev mailto:wireshark-dev-request () wireshark org?subject=unsubscribe
Current thread:
- Re: How Wireshark supports monitor mode for WLAN 802.11 adapter in Windows? Yang Luo (Jan 01)
- Re: How Wireshark supports monitor mode for WLAN 802.11 adapter in Windows? Guy Harris (Jan 01)