Remove dummy TUNSIFMODE ioctl(2) call from pppac(4) and npppd(8). Since
OpenBSD 6.7 npppd(8) can't work over tun(4).

ok yasuoka@

Remove PIPEX{S,G}MODE ioctl(2) commands. This time they are pretty dummy
and were kept only for backward compatibility reasons.

ok mpi@ yasuoka@

Pass the pppx_hdr when sending packets through the pppx device and use the
ppp_id in the pppx_hdr to find the associated ppp when receiving the packets
from the device.

Simplify and lock down priv_open():
* kill the 'mode' argument
* fail if passed any flags other than O_ACCMODE OR O_NONBLOCK
* paranoia: mask O_CREAT when calling open() with only two arguments
* instead of using ioctl(FIONBIO) after the fact, pass O_NONBLOCK to
priv_open()

"good start" deraadt@
ok yasuoka@

Remove old route to the tunnel interface when the interface's address is
changed.

From Yuuichi Someya at IIJ.

move to <limits.h> universe
ok yasuoka

Remove unnecessary netinet/in_systm.h include.

ok millert@

Pipex did panic when the 0 length mppe is given by ioctl. Return
EINVAL instead of panic. Also npppd called ioctl with the invalid
argument because of the bugs introduced by the config parser change
commit. Fixed those bugs and make sure not to use 0 length keys for
MPPE.

reported by csszep at gmail and giovanni
ok giovanni

New configuration syntax for npppd(8). `npppd.conf' will be based on
parse.y and `npppd-users' will be based on getcap(3). Add man pages.

feedback from giovanni

Fix comments and styles. Delete unused variables and labels.
No binary changes.

ok mcbride henning

add support for pppx interfaces instead of tun interfaces.

pppx mode will create a pppx interface for each ppp session in the kernel,
and will rely on the kernel to handle the routing rather than doing it
itself. as a bonus it will configure the interfaces description with the
username of the person connecting (which makes systat if pretty).

ok claudio@ yasuoka@ as part of a larger diff
from jonathan matthew
weve been running all this in production for a month now..

add $OpenBSD$ and remove trailing space. no functional change.

fix mistakes that have been created by my porting to OpenBSD.
- delete a change only for debug
- add missing 'else'

Translate Japanese comments or labels into English. Translation was
done by IIJ people (MATSUI Yoshihiro, SAITOH Masanobu, Tomoyuki Sahara),
yuo@ and myself.

This diff also includes
- delete part of useless comments, correct spelling.
- add man page of npppdctl.

There is no functional change.

Initial import npppd(8). npppd is a new PPP daemon that handles many
ppp sessions as a server. It supports L2TP, PPTP and PPPoE as
tunneling.

ok mcbride@ dlg@ deraadt@ reyk@.

Remove PIPEX{S,G}MODE ioctl(2) commands. This time they are pretty dummy
and were kept only for backward compatibility reasons.

ok mpi@ yasuoka@

Pass the pppx_hdr when sending packets through the pppx device and use the
ppp_id in the pppx_hdr to find the associated ppp when receiving the packets
from the device.

Simplify and lock down priv_open():
* kill the 'mode' argument
* fail if passed any flags other than O_ACCMODE OR O_NONBLOCK
* paranoia: mask O_CREAT when calling open() with only two arguments
* instead of using ioctl(FIONBIO) after the fact, pass O_NONBLOCK to
priv_open()

"good start" deraadt@
ok yasuoka@

Remove old route to the tunnel interface when the interface's address is
changed.

From Yuuichi Someya at IIJ.

move to <limits.h> universe
ok yasuoka

Remove unnecessary netinet/in_systm.h include.

ok millert@

Pipex did panic when the 0 length mppe is given by ioctl. Return
EINVAL instead of panic. Also npppd called ioctl with the invalid
argument because of the bugs introduced by the config parser change
commit. Fixed those bugs and make sure not to use 0 length keys for
MPPE.

reported by csszep at gmail and giovanni
ok giovanni

New configuration syntax for npppd(8). `npppd.conf' will be based on
parse.y and `npppd-users' will be based on getcap(3). Add man pages.

feedback from giovanni

Fix comments and styles. Delete unused variables and labels.
No binary changes.

ok mcbride henning

add support for pppx interfaces instead of tun interfaces.

pppx mode will create a pppx interface for each ppp session in the kernel,
and will rely on the kernel to handle the routing rather than doing it
itself. as a bonus it will configure the interfaces description with the
username of the person connecting (which makes systat if pretty).

ok claudio@ yasuoka@ as part of a larger diff
from jonathan matthew
weve been running all this in production for a month now..

add $OpenBSD$ and remove trailing space. no functional change.

fix mistakes that have been created by my porting to OpenBSD.
- delete a change only for debug
- add missing 'else'

Translate Japanese comments or labels into English. Translation was
done by IIJ people (MATSUI Yoshihiro, SAITOH Masanobu, Tomoyuki Sahara),
yuo@ and myself.

This diff also includes
- delete part of useless comments, correct spelling.
- add man page of npppdctl.

There is no functional change.

Initial import npppd(8). npppd is a new PPP daemon that handles many
ppp sessions as a server. It supports L2TP, PPTP and PPPoE as
tunneling.

ok mcbride@ dlg@ deraadt@ reyk@.

Pass the pppx_hdr when sending packets through the pppx device and use the
ppp_id in the pppx_hdr to find the associated ppp when receiving the packets
from the device.

Simplify and lock down priv_open():
* kill the 'mode' argument
* fail if passed any flags other than O_ACCMODE OR O_NONBLOCK
* paranoia: mask O_CREAT when calling open() with only two arguments
* instead of using ioctl(FIONBIO) after the fact, pass O_NONBLOCK to
priv_open()

"good start" deraadt@
ok yasuoka@

Remove old route to the tunnel interface when the interface's address is
changed.

From Yuuichi Someya at IIJ.

move to <limits.h> universe
ok yasuoka

Remove unnecessary netinet/in_systm.h include.

ok millert@

Pipex did panic when the 0 length mppe is given by ioctl. Return
EINVAL instead of panic. Also npppd called ioctl with the invalid
argument because of the bugs introduced by the config parser change
commit. Fixed those bugs and make sure not to use 0 length keys for
MPPE.

reported by csszep at gmail and giovanni
ok giovanni

New configuration syntax for npppd(8). `npppd.conf' will be based on
parse.y and `npppd-users' will be based on getcap(3). Add man pages.

feedback from giovanni

Fix comments and styles. Delete unused variables and labels.
No binary changes.

ok mcbride henning

add support for pppx interfaces instead of tun interfaces.

pppx mode will create a pppx interface for each ppp session in the kernel,
and will rely on the kernel to handle the routing rather than doing it
itself. as a bonus it will configure the interfaces description with the
username of the person connecting (which makes systat if pretty).

ok claudio@ yasuoka@ as part of a larger diff
from jonathan matthew
weve been running all this in production for a month now..

add $OpenBSD$ and remove trailing space. no functional change.

fix mistakes that have been created by my porting to OpenBSD.
- delete a change only for debug
- add missing 'else'

Translate Japanese comments or labels into English. Translation was
done by IIJ people (MATSUI Yoshihiro, SAITOH Masanobu, Tomoyuki Sahara),
yuo@ and myself.

This diff also includes
- delete part of useless comments, correct spelling.
- add man page of npppdctl.

There is no functional change.

Initial import npppd(8). npppd is a new PPP daemon that handles many
ppp sessions as a server. It supports L2TP, PPTP and PPPoE as
tunneling.

ok mcbride@ dlg@ deraadt@ reyk@.