When a pipe or queue has the "noerror" attribute, do not report
drops to the caller (ip_output() and friends).
(2 lines to implement it, 2 lines to document it.)
This will let you simulate losses on the sender side as if they
happened in the middle of the network, i.e. with no explicit feedback
to the sender.
manpage and ipfw2.c changes to follow shortly, together with other
ipfw2 changes.
Requested by: silby
MFC after: 3 days
satisfy consumers of ip_var.h that need a complete definition of
struct ipq and don't include mac.h.
Obtained from: TrustedBSD Project
Sponsored by: DARPA, NAI Labs
type of the 'flags' argument m_getcl() was using anyway; m_extadd()
needed to be changed to accept an int instead of a short for 'flags.'
This makes things more consistent and also gives us more bits to
use for m_flags in the future (we have almost run out).
Requested by: sam (Sam Leffler)
elimiates the driver lockup problem reported by many.
Concepts used were taken from Via's if_fet driver. Verification
and implementation were done by Thomas Nystrom.
Submitted by: Thomas Nystrom <thn@saeab.se>
MFC after: 3 days
during a label change resulting in an mmap removal. This is "fail stop"
behavior, which is preferred, although it offers slightly less
transparency.
Obtained from: TrustedBSD Project
Sponsored by: DARPA, NAI Labs
(Most of the places where mac.h was recursively included from another
kernel header file. net/netinet to follow.)
Obtained from: TrustedBSD Project
Sponsored by: DARPA, NAI Labs
Suggested by: bde
us to reduce namespace pollution by doing a nested include of _label.h
rather than mac.h. mac.h contains lots of baggage, whereas _label.h
contains much less. A follow-up sweep to change nested inclusion will
follow. The problem regarding exporting 'struct label' to userland
due to excessive exporting of kernel structures to userland still
needs to be resolved.
Obtained from: TrustedBSD Project
Sponsored by: DARPA, NAI Labs
Suggested by: bde
parts rather than use vop_{read,write}_args. Access to these
functions will ultimately not be available through the
"vop_{read,write}+IO_EXT" API but this functionality is retained
for debugging purposes for now.
Sponsored by: DARPA & NAI Labs.
to do this made the following script hang:
#!/bin/sh
set -ex
extattrctl start /tmp
extattrctl initattr 64 /tmp/EA00
extattrctl enable /tmp user ea00 /tmp/EA00
extattrctl showattr /tmp/EA00
if the filesystem backing /tmp did not support EAs.
The real solution is probably to have the extattrctl syscall do the
unlocking rather than depend on the filesystem to do it. Considering
that extattrctl is going to be made obsolete anyway, this has dogwash
priority.
Sponsored by: DARPA & NAI Labs.
UFS only thing, and FFS should in principle not know if it is enabled
or not.
This commit cleans ffs_vnops.c for such knowledge, but not ffs_vfsops.c
Sponsored by: DARPA and NAI Labs.
these in the main filesystems. This does not change the resulting code
but makes the source a little bit more grepable.
Sponsored by: DARPA and NAI Labs.
there is a global lock over the undo structures because of the way
they are managed.
Switch to using SLIST instead of rolling our own linked list.
Fix several races where a permission check was done before a
copyin/copyout, if the copy happened to fault it may have been
possible to race for access to a semaphore set that one shouldn't
have access to.
Requested by: rwatson
Tested by: NetBSD regression suite.
entire subsystem, we could move to per-message queue locks, however
the messages themselves seem to come from a global pool and to avoid
over-locking this code (locking individual queues, then the global
pool) I've opted to just do it this way.
Requested by: rwatson
Tested by: NetBSD's regression suite.
as part of the TrustedBSD MAC framework. Instrument the creation
and destruction of pipes, as well as relevant operations, with
necessary calls to the MAC framework. Note that the locking
here is probably not quite right yet, but fixes will be forthcoming.
Obtained from: TrustedBSD Project
Sponsored by: DARPA, NAI Labs
