On Thu, 03 Feb 2005 00:42:52 +0800 "sanjeev ravindran" <sanjeev_ravindran@xxxxxxxxxxxxx> wrote: > Hi , > > I'm trying to call the tc_qdisc_modify function of tc in iproute2/tc. I could compile it with my stub program and got the executable. However, when i try to create an htb qdisc i get the following error : Unknown qdisc "htb", hence option "default" is unparsable > > However, if i use the tc tool, it works fine.. When I tried to understand the problem, it appeared to be failing of dlopen to load the module.. But when i use tc tool, it loads this module.. Tc command is hard to understand because it supports using dynamic libraries to add new queue disciplines. To find a queue discipline it first looks for q_XXX.so then opens it's own text with dlopen() and finds the necessary table hooks. This kind of dynamic binding is uncommon in C code, but allows for extensibility. Normally tc has most queue discipline support (ie q_htb) linked into the command directly, but you could build q_htb.so standalone as well. _______________________________________________ LARTC mailing list / LARTC@xxxxxxxxxxxxxxx http://mailman.ds9a.nl/mailman/listinfo/lartc HOWTO: http://lartc.org/
