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| author |   angelos <angelos@openbsd.org> | 2001-06-25 06:40:52 +0000 |
|---|---|---|
| committer | angelos <angelos@openbsd.org> | 2001-06-25 06:40:52 +0000 |
| commit | 146823c2466611de65e372a8399bc73a1bf91b29 (patch) | |
| tree | fc3a855509a10da75dc8a5744451391a5e44e090 | |
| parent | Better wording. (diff) | |
| download | wireguard-openbsd-146823c2466611de65e372a8399bc73a1bf91b29.tar.xz wireguard-openbsd-146823c2466611de65e372a8399bc73a1bf91b29.zip | |
Mention M_COPY_HDR/M_COPY_PKTHDR vs. M_DUP_HDR/M_DUP_PKTHDR wrt. tags
| -rw-r--r-- | share/man/man9/mbuf_tags.9 | 18 |
1 files changed, 16 insertions, 2 deletions
diff --git a/share/man/man9/mbuf_tags.9 b/share/man/man9/mbuf_tags.9 index 84e090b42a5..5fd09d3ef16 100644 --- a/share/man/man9/mbuf_tags.9 +++ b/share/man/man9/mbuf_tags.9 @@ -1,4 +1,4 @@ -.\" $OpenBSD: mbuf_tags.9,v 1.4 2001/06/25 06:37:04 angelos Exp $ +.\" $OpenBSD: mbuf_tags.9,v 1.5 2001/06/25 06:40:52 angelos Exp $ .\" .\" The author of this man page is Angelos D. Keromytis (angelos@cis.upenn.edu) .\" @@ -243,7 +243,21 @@ returns the tag following .Va tag in packet .Va mbuf . -.Sh CODE REFERENCS +.Pp +The +.Fn M_COPY_PKTHDR +and +.Fn M_COPY_HDR +macros defined in +.Pa sys/sys/mbuf.h +move the tags from the old to the new mbuf. +The +.Fn M_DUP_PKTHDR +and +.Fn M_DUP_HDR +create a new copy of the tag chain for the new mbuf. +.Pp +.Sh CODE REFERENCES The tag-manipulating code is contained in the file .Pa sys/kern/uipc_mbuf2.c . .Sh SEE ALSO |