NRSACK extension. The default will still be off, since it
it not an RFC (yet).
Changing the sysctl name will be in a separate commit.
MFC after: 1 week
option for controlling ECN on future associations and get the
status on current associations.
A simialar pattern will be used for controlling SCTP extensions in
upcoming commits.
compressed tarball, aka package. The file system assumes that the
files are layed-out in the same order as needed to allow for the
package to be streamed. As such, it does not read an entire package
into memory first.
Some properties of the file system:
o Files that start with '+' are silently skipped. These are found
in FreeBSD package files.
o Files smaller than or equal to 4KB will be cached in memory and
as such allow for some flexibility in accessing files out of
order.
o Files with the .tgz suffix are assumed to be (sub-)packages and
signal the end for a directory scan.
Obtained from: Juniper Networks, Inc.
to counteract the default behaviour of always trying each and every
file system until one succeeds, or the open fails. The problem with the
loader is that we've implemented features based on this behavior. The
handling of compressed files is a good example of this. However, it is
in general highly undesirable to not have a one-time probe (or taste
in the geom lingo), followed by something similar to a mount whenever
we (first) read from a device. Everytime we go to the same device, we
can reasonably assume it (still) has the same file system. For file
systems that need to do far more that a trivial read of a super block,
not having something similar to a mount operation is disastrous from
a performance (and thus usability) perspective.
But, again, since we've implemented features based on this stateless
approach, things can get complicated quickly if and when we want to
change this. And yet, we sometimes do need stateful behaviour.
For this reason, this change simply introduces exclusive_file_system.
When set to the fsops of the file system to use, the open call will
only try this file system. Setting it to NULL restores the default
behaviour. It's a low-cost (low-brow?) approach to provide enough
control without re-implementing the guts of the loader.
A good example of when this is useful is when we're trying to load
files out of a container (say, a software packaga) that itself lives
on a file system or is fetched over the network. While opening the
container can be done in the normal stateless manner, once it is
opened, subsequent opens should only consider the container.
Obtained from: Juniper Networks, Inc.
requires the return value of telldir() to equal the value passed to
seekdir(). The current seekdir code with SINGLEUSE enabled breaks
this case as each call to telldir() allocates a new cookie. Instead,
remove the SINGLEUSE code and change telldir() to look for an existing
cookie for the directory's current location rather than always creating
a new cookie.
CR: https://phabric.freebsd.org/D490
PR: 121656
Reviewed by: jilles
MFC after: 1 week
header with archive_crypto_private.h, and its ARCHIVE_HASH_xxx macros
were renamed to ARCHIVE_CRYPTO_xxx.
Rename these macros in lib/libarchive/config_freebsd.h, to re-enable the
hashes for libarchive again. This affects the mtree format writer, and
the xar format reader and writer modules.
This also requires changes in the library order for statically linking
rescue, otherwise ld would complain about redefined symbols. Thanks to
jkim for pointing out the solution.
Reviewed by: kientzle
MFC after: 1 week
Replace fprintf_l with fputs when output is unformatted.
Use locale_t in _conv() since it was using sprintf (now sprintf_l)
Use locale_t on _yconv() sinci it calls _conv()
Obtained from: Apple Inc. (Libc 997.90.3)
CR: D482
Reviewed by: theraven
MFC after: 1 week
after an intervening call to rewinddir() is undefined, so reclaim any
pending telldir() cookies in the directory when rewinddir() is called.
CR: D459
Reviewed by: jilles
MFC after: 1 week
true on amd64 I'm not quite positive this is the "correct" solution for
this but it does seem to compile and shut up the spew of warnings when
compiling libstand for userboot.
Add two _Static_asserts() so that in the future somebody will get a compile
failure if an architecture develops that violates the assumptions of this
code. (strongly suggested by jmg)
Change commetns to indicate int types instead of long. (noted by ian in
phabric review)
Phabric: https://phabric.freebsd.org/D443
The faulting instruction needs to be restarted when the exception handler
is done handling the fault. bhyve now does this correctly by setting
'vmexit[vcpu].inst_length' to zero so the %rip is not advanced.
A minor complication is that the fault injection APIs are used by instruction
emulation code that is shared by vmm.ko and bhyve. Thus the argument that
refers to 'struct vm *' in kernel or 'struct vmctx *' in userspace needs to
be loosely typed as a 'void *'.
-fix a condition so that fparseln() doesn't report spurious empty lines
eg after 2 comment lines, or on EOF after a single comment line
-no escape character means no escaped characters
modify the previous fix so that no pointless realloc()s are done in
the case of multiple empty continuation lines, and comment the code
to make the logics obvious
fparseln is now part of libc in NetBSD so this changes the previous
revision numbering.
Obtained from: NetBSD (CVS Rev. 1.6-1.7)
MFC after: 2 weeks
For consistency with r268985 for fputs.c, assign iov_len
first, avoiding the cast to uio_resid (int in stdio)
from degrading the value.
We currently don't support lengths higher than INT_MAX so
this change is little more than cosmetic.
MFC after: 3 days
Check for __SAPP flag before calling sflush. This avoids
performance degradation compared to the previous approach.
Submitted by: ache
MFC after: 2 weeks
The hcreate(3) implementation and related functions we inherited
from NetBSD used to free() the key value, something that is not
supported by the standard implementation.
This would cause a segmentation fault when attempting to run
the examples from the opengroup and linux manpages. NetBSD
has added non-standard calls to provide the previous
behaviour but hdestroy is not very commonly used so at this
time it seems excessive to bring those to FreeBSD.
Bump the __FreeBSD_version as this is an ABI change.
Reference:
http://bugs.dragonflybsd.org/issues/1398
MFC after: 2 weeks
While testing this I found a conformance issue in hdestroy()
that will be fixed in a subsequent commit.
Obtained from: NetBSD (hcreate.c, CVS Rev. 1.7)
Use EBADF instead of EINVAL when working around incorrect O_ACCMODE.
Phabric: D442
Obtained from: Apple Inc. (Libc 997.90.3)
Reviewed by: jilles
MFC after: 1 week
This has small changes to what Apple uses for compliance
with SUSv3. The changes cause no secondary effects in the
gnulib tests (we pass them).
Obtained from: Apple Inc. (Libc 997.90.3 with changes)
Reviewed by: bde
Phabric: D440
handling. For statically linked apps this uses the __exidx_start/end
symbols set up by the linker. For dynamically linked apps it finds the
shared object that contains the given address and returns the location and
size of the exidx section in that shared object.
The dl_unwind_find_exidx() name is used by other BSD projects and Android,
and is mentioned in clang 3.5 comments as "the BSD interface" for finding
exidx data. GCC (in libgcc_s) expects the exact same API and functionality
to be provided by a function named __gnu_Unwind_Find_exidx(), so we provide
that with an alias ("strong reference").
Reviewed by: kib@
MFC after: 1 week
A nested exception condition arises when a second exception is triggered while
delivering the first exception. Most nested exceptions can be handled serially
but some are converted into a double fault. If an exception is generated during
delivery of a double fault then the virtual machine shuts down as a result of
a triple fault.
vm_exit_intinfo() is used to record that a VM-exit happened while an event was
being delivered through the IDT. If an exception is triggered while handling
the VM-exit it will be treated like a nested exception.
vm_entry_intinfo() is used by processor-specific code to get the event to be
injected into the guest on the next VM-entry. This function is responsible for
deciding the disposition of nested exceptions.
iterating over the (possibly empty) list of members. Otherwise, we
get a false negative when the target group has no members listed in
/etc/group. This went mostly unnoticed because root is explicitly
listed as a member of wheel, so the bug is never triggered in the most
common use case, which is su(8).
PR: 109416
MFC after: 1 week
configuration lexer and parser during buildworld. Instead of being
included in the source as it is in the upstream distribution, the code is
now always generated (in ${.OBJDIR}) at build time.
PR: 190739
MFC after: 1 week
Define the precision macros as bits sets to conform with XNU equivalent.
Test fflags passed for EVFILT_TIMER and return EINVAL in case an invalid flag
is passed.
Phabric: https://phabric.freebsd.org/D421
Reviewed by: kib
