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 PHC | |
Open Source and information security mailing list archives
| ||
|
Date: Wed, 23 May 2007 10:33:16 +0000 From: "Thomas B. Rücker" <dm8tbr@...npma.org> To: Herbert Xu <herbert@...dor.apana.org.au> CC: shemminger@...ux-foundation.org, pg@...ureware.at, netdev@...r.kernel.org Subject: Re: UDP checksum broken since 2.6.18? Herbert Xu wrote: > "Thomas B. R??cker" <dm8tbr@...npma.org> wrote: > >> Stephen Hemminger wrote: >> >>> The packet passed to packet capture programs may not have a valid checksum >>> if you have checksum offload configured on the device. What kind of hardware >>> do you have on sender and receiver? >>> >> The c-snippet uses 127.x.x.x --> loopback >> > > We never compute the complete checksum for loopback so that explains > the bogus checksum. > Does this also explain why wireshark thinks the checksum is right when tested on <=2.6.17? Cheers Thomas - 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
Powered by blists - more mailing lists