Date: Thu, 24 Oct 2019 11:33:25 +0000 From: bugzilla-noreply@freebsd.org To: bugs@FreeBSD.org Subject: [Bug 241462] netgraph/ng_tag: Variable length data can not be set for all length Message-ID: <bug-241462-227@https.bugs.freebsd.org/bugzilla/>
index | next in thread | raw e-mail
https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=241462 Bug ID: 241462 Summary: netgraph/ng_tag: Variable length data can not be set for all length Product: Base System Version: CURRENT Hardware: Any OS: Any Status: New Severity: Affects Some People Priority: --- Component: kern Assignee: bugs@FreeBSD.org Reporter: lutz@donnerhacke.de ng_tag does can operator on arbitary data of mbuf_tags. This only works for any data sets. + mkpeer . tag t t + msg t sethookin { thisHook="t" tag_len=4 tag_data=[1] } works. But the following does not: + msg t sethookin { thisHook="t" tag_len=1 tag_data=[1] } ngctl: send msg: Invalid argument Especially in the case of checking for mbuf_tag values, the length of checked data is important. The reason behind this behavior is, that the record size is padded to the next multiple of the alignment. Therefore it's sufficient to check for large enough data received. Patch is in review D22140 -- You are receiving this mail because: You are the assignee for the bug.help
Want to link to this message? Use this URL: <https://mail-archive.FreeBSD.org/cgi/mid.cgi?bug-241462-227>