- Remove remaining #ifdef INET.
- Avoid holding locks so we don't need to do KM_NOSLEEP allocations.
- Use a rwlock to protect the accept filter list.
- Make it safe to unload accept filter modules.
- Minor KNF.
support for specifying an accept filter for a service (mostly as a usage
example, but it can be handy for other things). Manual pages to follow
in a day or so.
OK core@.
- Socket layer becomes MP safe.
- Unix protocols become MP safe.
- Allows protocol processing interrupts to safely block on locks.
- Fixes a number of race conditions.
With much feedback from matt@ and plunky@.
- Add a lot of missing selinit() and seldestroy() calls.
- Merge selwakeup() and selnotify() calls into a single selnotify().
- Add an additional 'events' argument to selnotify() call. It will
indicate which event (POLL_IN, POLL_OUT, etc) happen. If unknown,
zero may be used.
Note: please pass appropriate value of 'events' where possible.
Proposed on: <tech-kern>
can rely on all socket options being propagated from the listen socket as
the manual page says (and as everything but Linux has always done). FreeBSD 6
fixes this the same way, but this bug appears elsewhere and is...Old.
Brought up on tech-kern@ some ~2 months ago, didn't seem to be an
objection; brought up again recently and no objection either... this is
not too intrusive and I've been running with this for a while.
With sock_loan_thresh=4096, sb_lowat==sb_hiwat, and sowritable will never
be true (even if only a single byte is pending). Some programs (like screen)
expect select() to return that a socket is writable on a socket when there
is space to write to it. XXX: What is the right thing to do here?
chgsbsize() as mentioned in the PR can be called from an interrupt context
via tcp_close(). Avoid calling uid_find() in chgsbsize().
- Instead of storing so_uid in struct socketvar, store *so_uidinfo
- Add a simple lock to struct uidinfo.
for consistency with M_FREE() and m_freem(). Affected files:
sys/mbuf.h
kern/uipc_socket2.c
kern/uipc_mbuf.c
net/if_ethersubr.c
netatalk/ddp_input.c
nfs/nfs_socket.c
We do an MGETHDR)() for each mbuf "packet" of the input chain, to hold
the socket address prepended to that "packet". If those MGETHDR()s
ever failed, we would leak all the successfully-allocated mbuf
headers. Leak noted by Yamamoto-san (yamt@NetBSD.org); thanks for catching it!
Add socketbuf invariant-checking macros to sbappendaddrchain(), and
replace a stray bcopy() with memcpy(), also as suggested by Yamamoto-san.
Introduce new socket-layer function sbappendaddrchain() to
sys/kern/uipc_socket2.c: like sbappendaddr(), only takes a chain of
records and appends the entire chain in one pass. sbappendaddrchain()
also takes an `sbprio' argument, which indicates the caller requires
special `reliable' handling of the socket-buffer. `sbprio' is
described in sys/sys/socketvar.h, although (for now) the different
levels are not yet implemented.
Rework sys/netipsec/key.c PF_KEY DUMP responses to build a chain of
mbuf records, one record per dump response. Unicast the entire chain
to the requestor, with all-or-none semantics.
Changed files;
sys/socketvar.h kern/uipc_socket2.c netipsec/key.c
Reviewed by:
Jason Thorpe, Thor Lancelot Simon, post to tech-kern.
Todo: request pullup to 2.0 branch. Post-2.0, rework sysctl() API for
dumps to use new record-chain constructors. Actually implement
the distinct service levels in sbappendaddrchain() so we can use them
to make PF_KEY ACQUIRE messages more reliable.
and unkillable processes.
1. Introduce new SBSIZE resource limit from FreeBSD to limit socket buffer
size resource.
2. make sokvareserve interruptible, so processes ltsleeping on it can be
killed.
* introduce fsetown(), fgetown(), fownsignal() - this sets/retrieves/signals
the owner of descriptor, according to appropriate sematics
of TIOCSPGRP/FIOSETOWN/SIOCSPGRP/TIOCGPGRP/FIOGETOWN/SIOCGPGRP ioctl; use
these routines instead of custom code where appropriate
* make every place handling TIOCSPGRP/TIOCGPGRP handle also FIOSETOWN/FIOGETOWN
properly, and remove the translation of FIO[SG]OWN to TIOC[SG]PGRP
in sys_ioctl() & sys_fcntl()
* also remove the socket-specific hack in sys_ioctl()/sys_fcntl() and
pass the ioctls down to soo_ioctl() as any other ioctl
change discussed on tech-kern@
