the reference counter of the corresponding struct dquot will overflow.
Change the type of the reference counter from u_int16_t to u_int32_t and
add an assertion to check for overflow.
Observed and tested by Edgar Fuß.
Welcome to 4.99.21 (struct dquot and therefore struct inode changed layout)
in kern_prot.c in order to simplify the code paths.
NB: the grouplist is not longer sorted - I don't think anything relies
on this (any more) and nfs will use truncated lists where the order of the
entries is important.
Move the external defns for public functios in kern_prot.c into a new
header sys/prot.h (from sys/ucred.h which contains a compat defn that
is exposed to userspace).
Exposed that the kauth code holds groups in an array, but removes some
of the knowledge of the maximum number of groups.
Allows the syscall code to copyin/out directly to/from the cred structure,
this save a lot of faffing about with malloc/free even when compat code
has to use 16bit groups.
MRU to the link's MTU and initiate an MRU negotiation with the peer.
This is useful when the PPP session is bridged from Ethernet to ATM
by an ADSL modem (such as the Linksys AM200). Unless we negotiate the
lower MRU, the peer is unaware that 1500-byte packets will not make
it umolested across the link (the Linksys AM200 silently truncates them
to 1498 bytes, creating a nice PMTU blackhole).
Note that the PPP RFC says peers MUST accept 1500 byte packets,
regardless of the negotiated MRU, so most ISPs which use PPPoA will
probably still send 1500-byte packets. However, I persuaded my ISP
(Andrews and Arnold) to modify their software to generate an ICMP error
"fragment needed" for packets with IP.DF set which are larger than the
negotiated MRU. They will still forward non-IP.DF packets, with the
associated truncation, but at least my PMTU troubles have gone.
64bit targets. Only the 0xb8-0xbf instructions (move immediate to register)
have a 64bit immediate constant.
Correct the disassembly of movq %eax to/from an immediate address - 64bit addr.
Add cmovxx instructions.
Now stands a chance of not getting all misaligned on normal C code.
Add a few others, but there are a lot missing, but probably mainly SIMD ones.
This file system is based on librefuse and puffs.
The icfs(8) utility can be used to mount an existing directory on a
new mount point. icfs makes use of the virtdir(3) virtual directory
routines. Underneath those virtual directories, the individual
directory entries will be displayed as an exact mirror of the original
directory, except that any capital letters in the original entry's
name will be substituted with an entry name consisting entirely of
lower-case letters.
This is an unusual example of a refuse-based file system which provides
lesser functionality than the file system it sits on.
This prevents a possible prefetch past the end of the source buffer.
Note that the semantics of the pld instruction mean that it is unlikely
that this would have caused any problems except in very specific
circumstances in some types of device drivers.
go through VFS_ROOT() and allow to fetch it without locking it.
This allows us to call the cache flush operations also for the root
vnode and most notably fixes e.g. a "No such file or directory"
for a psshfs root directory ls -l when a file was locally deleted
and remotely re-created.
Also fix some sloppy programming in root node fetch (mostly cosmetic).
* During initialization, use the right port index when setting up the
physical pointers for a port. Fixes issue with non-contigous ports.
Reviewed by Manuel.
hannken