diff options
| -rw-r--r-- | share/man/man9/mbuf_tags.9 | 9 |
1 files changed, 6 insertions, 3 deletions
diff --git a/share/man/man9/mbuf_tags.9 b/share/man/man9/mbuf_tags.9 index 82e0d8b..b83627a 100644 --- a/share/man/man9/mbuf_tags.9 +++ b/share/man/man9/mbuf_tags.9 @@ -20,7 +20,7 @@ .\" .\" $FreeBSD$ .\" -.Dd May 20, 2004 +.Dd Nov 18, 2004 .Dt MBUF_TAGS 9 .Os .Sh NAME @@ -66,7 +66,7 @@ Tags are maintained in chains off of the .Xr mbuf 9 header, and maintained using a series of API calls to allocate, search, and delete tags. -Tags are identified using an ID and cookie that uniquely identifier a class +Tags are identified using an ID and cookie that uniquely identify a class of data tagged onto the packet, and may contain an arbitrary amount of additional storage. Typical uses of mbuf tags include the storage of VLAN tags as described in @@ -79,7 +79,10 @@ and packet filter tags used by .Xr pf 4 . .Pp Tags will be maintained across a variety of operations, including the copying -of packet headers using facilities such as M_COPY_PKTHDR and M_MOVE_PKTHDR. +of packet headers using facilities such as +.Fn M_COPY_PKTHDR +and +.Fn M_MOVE_PKTHDR . Any tags associated with an mbuf header will be automatically freed when the mbuf is freed, although some subsystems will wish to delete the tags prior to that time. |
