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document TUNSIFINFO, TUNGIFINFO, TUNSIFPID, TUNSIFHEAD, TUNGIFHEAD

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This commit is contained in:
Assar Westerlund 2000-12-13 13:40:42 +00:00
parent 2603f917b7
commit 9a6f618efe
Notes: svn2git 2020-12-20 02:59:44 +00:00 
svn path=/head/; revision=69980
1 changed files with 27 additions and 2 deletions
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29
share/man/man4/tun.4
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@ -141,6 +141,19 @@ code.
The argument should be a pointer to an
.Va int ;
this stores the internal debugging variable's value into it.
.It Dv TUNSIFINFO
The argument should be a pointer to an
.Va struct tuninfo
and allows setting the MTU, the type, and the baudrate of the tunnel
device.
The
.Va struct tuninfo
is declared in
.Aq Pa net/if_tun.h .
.It Dv TUNGIFINFO
The argument should be a pointer to an
.Va struct tuninfo ,
where the current MTU, type, and baudrate will be stored.
.It Dv TUNSIFMODE
The argument should be a pointer to an
.Va int ;
@ -163,6 +176,20 @@ a non-zero value turns on
.Dq link-layer
mode, causing packets read from the tunnel device to be prepended with
network destination address.
.It Dv TUNSIFPID
Will set the pid owning the tunnel device to the current process's pid.
.It Dv TUNSIFHEAD
The argument should be a pointer to an
.Va int ;
a non-zero value turns off
.Dq link-layer
mode, and enables multi-af mode, where every packet is preceded with a
four byte address family.
.It Dv TUNGIFHEAD
The argument should be a pointer to an
.Va int ;
this stores one if the device is in multi-af mode, and zero otherwise
in it.
.It Dv FIONBIO
Turn non-blocking I/O for reads off or on, according as the argument
.Va int Ns 's
@ -213,8 +240,6 @@ them pile up.
.Sh SEE ALSO
.Xr inet 4 ,
.Xr intro 4
.Sh BUGS
Currently is IP-only.
.Sh AUTHORS
This man page has been obtained from
.Bx Net .