Gone are the old kern_sysctl(), cpu_sysctl(), hw_sysctl(),
vfs_sysctl(), etc, routines, along with sysctl_int() et al. Now all
nodes are registered with the tree, and nodes can be added (or
removed) easily, and I/O to and from the tree is handled generically.
Since the nodes are registered with the tree, the mapping from name to
number (and back again) can now be discovered, instead of having to be
hard coded. Adding new nodes to the tree is likewise much simpler --
the new infrastructure handles almost all the work for simple types,
and just about anything else can be done with a small helper function.
All existing nodes are where they were before (numerically speaking),
so all existing consumers of sysctl information should notice no
difference.
PS - I'm sorry, but there's a distinct lack of documentation at the
moment. I'm working on sysctl(3/8/9) right now, and I promise to
watch out for buses.
- use hash for SPI-based SAD entry lookup (should be faster, i hope)
- cleanup keydb.c and key.c. key.c is responsible for refcounting secasvar,
keydb.c is responsible for alloc/free.
be inserted into ktrace records. The general change has been to replace
"struct proc *" with "struct lwp *" in various function prototypes, pass
the lwp through and use l_proc to get the process pointer when needed.
Bump the kernel rev up to 1.6V
malloc types into a structure, a pointer to which is passed around,
instead of an int constant. Allow the limit to be adjusted when the
malloc type is defined, or with a function call, as suggested by
Jonathan Stone.
particular problem on hosts with only wireless interfaces that are
definitely not safe to use as entropy sources.
Add arc4randbytes() which hands out bytes from the same source used
by arc4random(). This is intended to be a _temporary_ interface
until we can design and implement a better general PRNG interface
that is decoupled from the entropy-pool implementation.
Modify key_randomfill() (used only for initialization vectors on
SA creation and via key_sa_stir_iv(), which does not "stir",
despite its name) to use arc4randbytes() instead of pulling bits
directly from the entropy pool. It is my hope that this change
will pose minimal integration problems for the KAME folks as the
random-pool interface is *already* different between each BSD
variant; this just simplifies the NetBSD case and solves a
fairly serious problem.
Note that it is generally considered acceptable cryptographic
practice to use a fast stream cipher to generate IVs for encryption
with stronger block ciphers. For example, the use of "non-Approved"
PRNGs to generate IVs for "Approved" block ciphers is explicitly
sanctioned by FIPS 140-2.
Make sure that each va_start has one and only one matching va_end,
especially in error cases.
If the va_list is used multiple times, do multiple va_starts/va_ends.
If a function gets va_list as argument, don't let it use va_end (since
it's the callers responsibility).
Improved by comments from enami and christos -- thanks!
Heimdal/krb4/KAME changes already fed back, rest to follow.
Inspired by, but not not based on, OpenBSD.
blank. In this case, we delete all non-LARVAL SAs that match the
src/dst/protocol. This is particularly useful in IKE INITIAL-CONTACT
processing. Idea from Bill Sommerfeld <sommerfeld@east.sun.com>, who
implemented it in post-Solaris8.
if there's no rnd(4), random(9) will be used with one-time warning printf(9).
XXX not sure how good rnd_extract_data(RND_EXTRACT_ANY) is, under entropy-
starvation situation
support ipcomp ACQUIRE messages (again).
it violates RFC2367 slightly. RFC2367 does not suport ipcomp at all
so we have no choice.
(KAME 1.151 -> 1.152)
do not leave dangling pointer after KFREE(). caused kernel panic with
certain PF_KEY message (error case) - only root can open PF_KEY socket
so it is not security issue.
(KAME 1.152 -> 1.153)
cbc-over-mbuf functions in sys/crypto.
the change should make it much easier to switch crypto function to
machine-dependent ones (like assembly code under sys/arch/i386/crypto?).
also it should be much easier to import AES algorithms.
XXX: it looks that past blowfish-cbc code was buggy. i ran some test pattern,
and new blowfish-cbc code looks more correct. there's no interoperability
between the old code (before the commit) and the new code (after the commit).
XXX: need serious interop tests before move it into 1.5 branch
itojun