[Bug 35852] SO_PRIORITY does not set TOS field in IP header
From: <hidden>
Date: 2015-05-05 19:24:28
https://bugzilla.kernel.org/show_bug.cgi?id=35852 Michael Kerrisk [off-list ref] changed: What |Removed |Added ---------------------------------------------------------------------------- Status|NEW |RESOLVED CC| |mtk.manpages-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org Resolution|--- |CODE_FIX
--- Comment #2 from Michael Kerrisk <mtk.manpages-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org> ---(In reply to advaitdixit from comment #0)
The socket man page says that setsockopt with level=SOL_SOCKET and optname=SO_PRIORITY sets the TOS field in IP header: http://www.kernel.org/doc/man-pages/online/pages/man7/socket.7.html However, my experiments and other web search results suggest that the socket man page is wrong. SO_PRIORITY does not seem to set the TOS field in the IP header.
A quick scan of the kernel source also finds nothing to suggest that SO_PRIORITY sets the TOS field in the IP header. Various URLs question this text in teh man page http://mailman.isi.edu/pipermail/ns-developers/2012-September/010638.html https://athena.ecs.csus.edu/~bransone/pub/misc/netfilter_notes/qos https://ocrete.ca/2009/07/24/when-a-man-page-lies/ http://lkml.iu.edu/hypermail/linux/net/0512.3/0008.html So, I'll remove this text from socket(7) (and also similar text in ip(7)), and close this bug. Thanks. -- You are receiving this mail because: You are watching the assignee of the bug. -- To unsubscribe from this list: send the line "unsubscribe linux-man" in the body of a message to majordomo-u79uwXL29TY76Z2rM5mHXA@public.gmane.org More majordomo info at http://vger.kernel.org/majordomo-info.html