netdev - [PATCH 2.6.18 1/2] LARTC: trace control for netem: userspace

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [day] [month] [year] [list]

Date:	Fri, 15 Dec 2006 11:39:27 +0100
From:	Rainer Baumann <baumann@....ee.ethz.ch>
To:	Stephen Hemminger <shemminger@...l.org>, netdev@...R.KERNEL.ORG,
	netem@...l.org
Subject: [PATCH 2.6.18 1/2] LARTC: trace control for netem: userspace

Trace Control for Netem: Emulate network properties such as long range dependency and self-similarity of cross-traffic.

user space (iproute2):
The directory tc/netem was split in two parts, one containing the original distribution tables and the other the tools to generate trace files as well as the program responsible for reading the delay values from the trace file and sending them to the kernel (called flowseed).

If the trace option is set, netem initializes the kernel and starts the flowseedprocess. The flowseedprocess does not
send data to the kernel until the registration is completed. The data is sent to the kernel module via configfs. For each qdisc applied, a new directory (in /config/tcn/) is created. The write returns when the kernel needs new data, or when the corresponding qdisc was deleted. In the first case new data is sent and in the latter case the flowseedprocess terminates himself.

Signed-off-by: Rainer Baumann <baumann@....ee.ethz.ch>

---

Patch for iproute2-2.6.16-060323: http://tcn.hypert.net/tcn_iproute2.patch

-
To unsubscribe from this list: send the line "unsubscribe netdev" in
the body of a message to majordomo@...r.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html