some trick is necessary to prevent further BSD geoms from attaching to
that. Our old trick was to make sure we don't attach to a geom from
the "BSD" class, but this doesn't work if an intermediary geom obscures
this fact. Instead, calculate the MD5 checksum of the label we target
and ask if anybody below us loves that label. If they do we don't.
Coded by: gordon.
Make sure sector zero is protected if it contains metadata.
Lower WARNS for gbde to 3 on non-i386 archs. rijndael-fst is evil
but appearntly does the right thing and passes the test-vectors.
MFC Candidate.
for request sizes larger than the sectorsize or for multi-key setups.
See warning mailed to current@ for details of recovery.
Found by: Marcus Reid <marcus@blazingdot.com>
This mostly consists of functionality to serialize accesses to
the two ATA channels (which can also be used to "fix" certain
PCI based controllers).
Add support for Acard controllers.
Enable the ATA driver in PC98 GENERIC, and add device hints.
Update man page with latest support.
The PC98 core team has kindly provided me with a PC98
machine that made this all possible, thanks to all that
contributed to that effort, without that this would
probably newer have been possible..
Approved by: re@
are the output of AES/128/CBC or ARC4RANDOM. Encrypt the random data with which
we wipe when we get a BIO_DELETE to make such an algorithm useful.
Sponsored by: DARPA & NAI Labs
Approved by: re (blanket)
Replace ARC4 with SHA2-512.
Change lock-structure encoding to use random ordering rather for obscurity.
Encrypt lock-structure with AES/256 instead of AES/128.
Change kkey derivation to be MD5 hash based.
Watch for malloc(M_NOWAIT) failures and ditch our cache when they happen.
Remove clause 3 of the license with NAI Labs consent.
Many thanks to "Lucky Green" <shamrock@cypherpunks.to> and "David
Wagner" <daw@cs.berkeley.edu>, for code reading, inputs and
suggestions.
This code has still not been stared at for 10 years by a gang of
hard-core cryptographers. Discretion advised.
NB: These changes result in the on-disk format changing: dump/restore needed.
Sponsored by: DARPA & NAI Labs.
skip those. This handles the Protective MBR (PMBR) which consists
of a single partition of type 0xEE that covers the whole disk and
as such protects the GPT partitioning. We allow other partitions to
be present besides partitions of type 0xEE and as such interpret
partition type 0xEE as a "hands-off" partition only.
While here, fix g_mbrext_dumpconf to test if indent is NULL and
dump the data in a form that libdisk can grok. Change the logic
in g_mbr_dumpconf to match that of g_mbrext_dumpconf. This does
not change the output, but prevents a NULL-pointer dereference
when indent == NULL && pp == NULL.
expected under -current. This is a problem for GEOM because the up/down
threads cannot sleep waiting for memory to become free. The reason they
cannot sleep is that paging things out to disk may be the only way we can
clear up some RAM. Nice catch-22 there.
Implement a rudimentary ENOMEM recovery strategy: If an I/O request
fails with an error code of ENOMEM, schedule it for a retry, and
tell the down-thread to sleep hz/10 to get other parts of the system
a chance to free up some memory, in particular the up-path in GEOM.
All caches should probably start to monitor malloc(9) failures using the new
malloc_last_fail() function, and release when it indicates congestion.
Sponsored by: DARPA & NAI Labs.
