Hi Stephen, Is this tcpprobe intended for 2.4 kernel? This is what I get against a 2.6.8-24 kernel: /home/ssuciu/tcpprobe/tcpprobe.c: In function `jtcp_sendmsg': /home/ssuciu/tcpprobe/tcpprobe.c:81: warning: initialization from incompatible pointer type /home/ssuciu/tcpprobe/tcpprobe.c:83: error: structure has no member named `snd_nxt' /home/ssuciu/tcpprobe/tcpprobe.c:83: error: structure has no member named `snd_una' /home/ssuciu/tcpprobe/tcpprobe.c:84: error: structure has no member named `snd_cwnd' /home/ssuciu/tcpprobe/tcpprobe.c:84: warning: passing arg 1 of `tcp_current_ssthresh' from incompatible pointer type /home/ssuciu/tcpprobe/tcpprobe.c:85: error: structure has no member named `snd_wnd' /home/ssuciu/tcpprobe/tcpprobe.c: In function `jtcp_recvmsg': /home/ssuciu/tcpprobe/tcpprobe.c:100: warning: initialization from incompatible pointer type /home/ssuciu/tcpprobe/tcpprobe.c:104: error: structure has no member named `rcv_nxt' /home/ssuciu/tcpprobe/tcpprobe.c:104: warning: passing arg 1 of `tcp_receive_window' from incompatible pointer type make[2]: *** [/home/ssuciu/tcpprobe/tcpprobe.o] Error 1 make[1]: *** [_module_/home/ssuciu/tcpprobe] Error 2 make[1]: Leaving directory `/usr/src/linux-2.6.8-24' Cheers, Sorin --- Stephen Hemminger <shemminger@xxxxxxxx> wrote: > On Mon, 02 May 2005 19:22:17 +0200 > Antonio Pinizzotto <antonio.pinizzotto@xxxxxxxxxx> > wrote: > > > > > Hi everybody. > > Do you know about any way to read the TCP cwnd > value (congestion window) > > on Linux? > > > > I have read that on Linux it is not possible to > enable a socket option > > (to read to cwnd using the program trpt). > > > > Any way to read the cwnd would be good for me. > > > > thanks > > > > Antonio > > I whipped together a hack using kprobe's to get > graphs for TCP testing. > You can download it from > http://developer.osdl.org/shemminger/prototypes/tcpprobe.tar.gz > _______________________________________________ > LARTC mailing list > LARTC@xxxxxxxxxxxxxxx > http://mailman.ds9a.nl/cgi-bin/mailman/listinfo/lartc > _______________________________________________ LARTC mailing list LARTC@xxxxxxxxxxxxxxx http://mailman.ds9a.nl/cgi-bin/mailman/listinfo/lartc
