Two orthogonal goals:
- try to make README look a little nicer on phabricator by using
Remarkup syntax for commands (using `` instead of using a closing ')
- try to make README look a little nicer on github.
- Don't encourage `make world` when the handbook specifies otherwise
- Change language around documentation to be a bit clearer
MFC After: 2 weeks
The parser considered 'trap exit INT' to reset the default for both EXIT and
INT. This beahvior is not POSIX compliant. This was avoided if a value was
specified for 'exit', but then disallows exiting with the signal received. A
possible workaround is using ' exit'.
However POSIX does allow this type of behavior if the parameters are all
integers. Fix the handling for this and clarify its support in the manpage
since it is specifically allowed by POSIX.
Differential Revision: https://reviews.freebsd.org/D2325
Reviewed by: jilles
MFC after: 2 weeks
pwrite(2) syscalls are wrapped to provide compatibility with pre-7.x
kernels which required padding before the off_t parameter. The
fcntl(2) contains compatibility code to handle kernels before the
struct flock was changed during the 8.x CURRENT development. The
shims were reasonable to allow easier revert to the older kernel at
that time.
Now, two or three major releases later, shims do not serve any
purpose. Such old kernels cannot handle current libc, so revert the
compatibility code.
Make padded syscalls support conditional under the COMPAT6 config
option. For COMPAT32, the syscalls were under COMPAT6 already.
Remove WITHOUT_SYSCALL_COMPAT build option, which only purpose was to
(partially) disable the removed shims.
Reviewed by: jhb, imp (previous versions)
Discussed with: peter
Sponsored by: The FreeBSD Foundation
MFC after: 1 week
This supports e500v1, e500v2, and e500mc. Tested only on e500v2, but the
performance counters are identical across all, with e500mc having some
additional events.
Relnotes: Yes
waitid() function is required to be cancellable by the standard. The
wait6() and ppoll() follow the other syscalls in their groups.
Reviewed by: jhb, jilles (previous versions)
Sponsored by: The FreeBSD Foundation
MFC after: 1 week
shows no difference with the code removed.
On both amd64 and i386, assert that a released pmap is not active.
Proposed and reviewed by: alc
Discussed with: Svatopluk Kraus <onwahe@gmail.com>, peter
Sponsored by: The FreeBSD Foundation
MFC after: 2 weeks
The format of these pages is somewhat experimental, so they may be subject
to further tweaking.
Differential Revision: https://reviews.freebsd.org/D2170
Reviewed by: bcr, rpaulo
MFC after: 2 weeks
On trackpads that had support for both, we were sending two button
events when the trackpad was pressed.
Tested by: Jakob Alvermark <jakob at alvermark.net>
MFC after: 1 week
They were added for compatibility with the sched provider in Solaris and
illumos, but our sched provider is already incompatible since it uses native
types, so there isn't much point in keeping them around.
Differential Revision: https://reviews.freebsd.org/D2167
Reviewed by: rpaulo
Add examples demonstrating how one can list available providers and the
DTrace probes provided by a provider.
Differential Revision: https://reviews.freebsd.org/D2166
Reviewed by: rpaulo
MFC after: 2 weeks
GEOM does not support scatter/gather lists in its I/Os. Such requests
are cut in pieces by physio(), that may be problematic, if those pieces
are not multiple of provider's sector size. If such case is detected,
move the data through temporary sequential buffer.
MFC after: 2 weeks
on the initial allocation, but seltdinit() assumes that td_sel is NULL
or a valid pointer. Note that thread_fini()/seltdfini() also relies
on this, but correctly resets td_sel to NULL.
Submitted by: luke.tw@gmail.com
PR: 199518
MFC after: 1 week
additional arguments - buffer and size of this buffer.
ipsec_address() is used to convert sockaddr structure to presentation
format. The IPv6 part of this function returns pointer to the on-stack
buffer and at the moment when it will be used by caller, it becames
invalid. IPv4 version uses 4 static buffers and returns pointer to
new buffer each time when it called. But anyway it is still possible
to get corrupted data when several threads will use this function.
ipsec_logsastr() is used to format string about SA entry. It also
uses static buffer and has the same problem with concurrent threads.
To fix these problems add the buffer pointer and size of this
buffer to arguments. Now each caller will pass buffer and its size
to these functions. Also convert all places where these functions
are used (except disabled code).
And now ipsec_address() uses inet_ntop() function from libkern.
PR: 185996
Differential Revision: https://reviews.freebsd.org/D2321
Reviewed by: gnn
Sponsored by: Yandex LLC
ipsec6_common_input_cb() uses partial copy of ip6_input() to parse
headers. But this isn't correct, when we use tunnel mode IPSec.
When we stripped outer IPv6 header from the decrypted packet, it
can become IPv4 packet and should be handled by ip_input. Also when
we use tunnel mode IPSec with IPv6 traffic, we should pass decrypted
packet with inner IPv6 header to ip6_input, it will correctly handle
it and also can decide to forward it.
The "skip" variable points to offset where payload starts. In tunnel
mode we reset it to zero after stripping the outer header. So, when
it is zero, we should requeue mbuf via netisr.
Differential Revision: https://reviews.freebsd.org/D2306
Reviewed by: adrian, gnn
Sponsored by: Yandex LLC
* in ipsec_encap() embed scope zone ids into link-local addresses
in the new IPv6 header, this helps ip6_output() disambiguate the
scope;
* teach key_ismyaddr6() use in6_localip(). in6_localip() is less
strict than key_sockaddrcmp(). It doesn't compare all fileds of
struct sockaddr_in6, but it is faster and it should be safe,
because all SA's data was checked for correctness. Also, since
IPv6 link-local addresses in the &V_in6_ifaddrhead are stored in
kernel-internal form, we need to embed scope zone id from SA into
the address before calling in6_localip.
* in ipsec_common_input() take scope zone id embedded in the address
and use it to initialize sin6_scope_id, then use this sockaddr
structure to lookup SA, because we keep addresses in the SADB without
embedded scope zone id.
Differential Revision: https://reviews.freebsd.org/D2304
Reviewed by: gnn
Sponsored by: Yandex LLC
The only thing is used from this code is ipip_output() function, that does
IPIP encapsulation. Other parts of XF_IP4 code were removed in r275133.
Also it isn't possible to configure the use of XF_IP4, nor from userland
via setkey(8), nor from the kernel.
Simplify the ipip_output() function and rename it to ipsec_encap().
* move IP_DF handling from ipsec4_process_packet() into ipsec_encap();
* since ipsec_encap() called from ipsec[64]_process_packet(), it
is safe to assume that mbuf is contiguous at least to IP header
for used IP version. Remove all unneeded m_pullup(), m_copydata
and related checks.
* use V_ip_defttl and V_ip6_defhlim for outer headers;
* use V_ip4_ipsec_ecn and V_ip6_ipsec_ecn for outer headers;
* move all diagnostic messages to the ipsec_encap() callers;
* simplify handling of ipsec_encap() results: if it returns non zero
value, print diagnostic message and free mbuf.
* some style(9) fixes.
Differential Revision: https://reviews.freebsd.org/D2303
Reviewed by: glebius
Sponsored by: Yandex LLC
sysctl_debug_hashstat_nchash() and sysctl_debug_hashstat_rawnchash().
These changes are in preparation for allowing changes in the size
of the vnode hash tables driven by increases and decreases in the
maximum number of vnodes in the system.
Reviewed by: kib@
Phabric: D2265
This avoids the need to build a target-specific crunchide for cross-
uilds.
Differential Revision: https://reviews.freebsd.org/D2314
Sponsored by: The FreeBSD Foundation
Each TX queue can hold one packet (yes, if_emac can send only two(!)
packets at a time).
Even with this change the very limited FIFO buffer (3 KiB for TX and 13 KiB
for RX) fill up too quick to sustain higher throughput.
For the TCP case it turns out that TX isn't the limiting factor, but the RX
side is (the FIFO fill up and starts to discard packets, so the sender has
to slow down).
The htree directory index is a highly desirable feature for research
purposes and was meant to improve performance in our ext2/3 driver.
Unfortunately our implementation has two problems:
- It never really delivered any performance improvement.
- It appears to corrupt the filesystem in undetermined circumstances.
Strictly speaking dir_index is not required for read/write support in
ext2/3 and our limited ext4 support still works fine without it.
Regain stability in the ext2 driver by removing it. We may need it back
(fixed) if we want to support encrypted ext4 support but thanks to the
wonders of version control we can always revert this change and bring it
back.
PR: 191895
PR: 198731
PR: 199309
MFC after: 5 days
