Commit Graph

2822 Commits

Author SHA1 Message Date
Maxim Sobolev
2651609fcb Allow rc.d script to provide "status" method, even if it does not
define procname or have a PID file. This might be useful for cases,
such as mounting local FS, when there is no running daemon
still some other persistent state in the system which status
can be checked.

It is still possible to have a status method before this by having
extra_commands="status", but it's not obvious and might give
an script writer some extra legwork to figure out how and why
the straight method is not working.

Reviewed by:	cy
MFC after:	1 week
Relnotes:	yes
Differential Revision:	https://reviews.freebsd.org/D31614
2021-08-20 09:43:46 -07:00
Scott Long
045001075e - Fix the growfs rc script to cope with diskid labels.
- Fix a warning in growfs. gpart commit is supposed to be called on disk
  device.
- Silence a gpart commit warning in growfs.

Submitted by: loos
Reviewed by: imp
Differential Revision: https://reviews.freebsd.org/D31587
Sponsored by: Rubicon Communications, LLC ("Netgate")
2021-08-17 21:50:18 +00:00
Konstantin Belousov
aa68b3bb2e rtld: constify most variables holding references to the environment values
Reviewed by:	markj
Sponsored by:	The FreeBSD Foundation
MFC after:	1 week
Differential revision:	https://reviews.freebsd.org/D31545
2021-08-17 15:06:08 +03:00
Konstantin Belousov
b4b2748891 rtld: provide private getenv(3)
Reviewed by:	arichardson, markj
Sponsored by:	The FreeBSD Foundation
MFC after:	1 week
Differential revision:	https://reviews.freebsd.org/D31545
2021-08-17 15:05:47 +03:00
Konstantin Belousov
bfd4c875a1 rtld: avoid use of of getenv(3) for evaluating rtld env vars (LD_XXX)
Scan through the set of environment variables during initialization and
store values in the corresponding ld_env_var_desc structure, in the
single pass at init time. This does not eliminate use of getenv(3) and
unsetenv(3) completely, but provides a foundation to do that as the next
step.

Also organize the scan in a way that makes it easier to support aliases
like LD_DEBUG vs. LD_64_DEBUG.

Suggested by:	arichardson
Reviewed by:	arichardson, markj
Sponsored by:	The FreeBSD Foundation
MFC after:	1 week
Differential revision:	https://reviews.freebsd.org/D31545
2021-08-17 15:05:47 +03:00
Konstantin Belousov
451dc2b7cc rtld: rework how environment variables are named
Instead of specifying the main name part of the environment variable as the
string literal, create array of the var names and access them by symbolic
index.  Convert main name parts into complete names by prefixing with
ABI-specific ld_env_vars.

This way the name is not repeated, and also it can carry additional
proporties explicitly.  For instance, cleanup of the environment for
the setuid image does not require retyping all names.

Reviewed by:	arichardson, markj
MFC after:	1 week
Sponsored by:	The FreeBSD Foundation
Differential revision:	https://reviews.freebsd.org/D31545
2021-08-17 15:05:46 +03:00
Dan Langille
35cf9fecbd Enable rc.d/jail within jails
Jails with jails is a supported. This change allows the script to run
upon startup with a jail. Without this, jails are not automatically
started within jails.
2021-08-17 09:07:53 +02:00
Fangrui Song
7da378f9de rtld: Switch to the standard symbol lookup behavior if LD_DYNAMIC_WEAK is set
The current lookup prefers a strong definition to a STB_WEAK definition
(similar to glibc pre-2.2 behavior) which does not conform to the ELF
specification.

The non-compliant behavior provoked https://reviews.llvm.org/D4418
which was intended to fix -shared-libasan but introduced
new problems (and caused some sanitizer tests (e.g.
test/asan/TestCases/interception_failure_test.cpp) to fail): sanitizer
interceptors are STB_GLOBAL instead of STB_WEAK, so defining a second
STB_GLOBAL interceptor can lead to a multiple definition linker error.
For example, in a -fsanitize={address,memory,...} build, libc functions
like malloc/free/strtol/... cannot be provided by user object files.

See
https://docs.freebsd.org/cgi/getmsg.cgi?fetch=16483939+0+archive/2014/freebsd-current/20140716.freebsd-current
for discussions.

This patch implements the ELF-compliant behavior when LD_DYNAMIC_WEAK is
set. STB_WEAK wrestling in symbol lookups in `Search the dynamic linker
itself` are untouched.

Reviewed by:	kib
MFC after:	1 week
Differential revision:	https://reviews.freebsd.org/D26352
2021-08-16 13:55:35 +03:00
Fangrui Song
8f63fa78e8 rtld: Remove calculate_tls_end
Variant I architectures use off and Variant II ones use size + off.
Define TLS_VARIANT_I/TLS_VARIANT_II symbols similarly to how libc
handles it.

Reviewed by:	kib
MFC after:	1 week
Differential revision:	https://reviews.freebsd.org/D31539
Differential revision:	https://reviews.freebsd.org/D31541
2021-08-16 13:55:35 +03:00
Fangrui Song
e6c7696203 rtld: Fix i386/amd64 TP offset when p_vaddr % p_align != 0
For a Variant II architecture, the TP offset of a TLS symbol is st_value -
tlsoffset + r_addend. tlsoffset is computed by either calculate_tls_offset
or calculate_first_tls_offset.

The return value of calculate_first_tls_offset is the smallest integer
satisfying res >= size and (-res) % p_align = p_vaddr % p_align
(= p_offset % p_align).  (The formula is a bit contrived. The basic idea
is to subtract the minimum integer from size + align - 1 so that the result
ihas the expected remainder.)

Reviewed by:	kib
MFC after:	1 week
Differential revision:	https://reviews.freebsd.org/D31538
Differential revision:	https://reviews.freebsd.org/D31541
2021-08-16 13:55:34 +03:00
Konstantin Belousov
c9f833abf1 rtld: Round down relro_size
lld rounds up p_memsz(PT_GNU_RELRO) to satisfy common-page-size. If the
page size is smaller than common-page-size, rounding up relro_size may
incorrectly make some RW pages read-only.

GNU ld, gold, and ld.lld ensures p_vaddr+p_memsz is a multiple of
common-page-size. While max-page-size >= system the page size,
common-page-size can be smaller than the system page size.

Submitted by:	MaskRay
MFC after:	1 week
Differential revision:	https://reviews.freebsd.org/D31498
2021-08-13 12:58:53 +03:00
Alex Richardson
7bc797e3f3 Add build system support for ASAN+UBSAN instrumentation
This adds two new options WITH_ASAN/WITH_UBSAN that can be set to
enable instrumentation of all binaries with AddressSanitizer and/or
UndefinedBehaviourSanitizer. This current patch is almost sufficient
to get a complete buildworld with sanitizer instrumentation but in
order to actually build and boot a system it depends on a few more
follow-up commits.

Reviewed By:	brooks, kib, markj
Differential Revision: https://reviews.freebsd.org/D31043
2021-08-02 14:33:24 +01:00
Eirik Øverby
33ff39796f Add zfskeys rc.d script for auto-loading encryption keys
ZFS in 13 supports encryption, but for the use case where keys are
available in plaintext on disk there is no mechanism for automatically
loading keys on startup.

This script will, by default, look for any dataset with encryption and
keylocation prefixed with file://. It will attempt to unlock, timing
out after 10 seconds for each dataset found.
User can optionally specify explicitly which datasets to attempt to
unlock.

Also supports (optionally by force) unmounting filesystems and unloading
associated keys.

Sponsored by:	Modirum
Differential Revision:	https://reviews.freebsd.org/D30015
2021-07-28 16:26:45 +00:00
Alan Somers
674400eb20 ftpd: delete dead code
Delete code killed by SVN r13139 in 1996.  Little chance that it would
still compile today.

PR:		257317
Reported by:	Alan Shearer <sakison@gmail.com>
MFC after:	2 weeks
Sponsored by:	Axcient
2021-07-27 12:18:08 -06:00
Mark Johnston
f238ebd142 rtld/arm64: Remove checks for undefined symbols when processing TPREL64
lld emits several GOT relocations referencing the null sumbol in libc.so
when compiled with -ftls-model=initial-exec.  This symbol is specified
to be undefined.

We generally do not handle dynamic TLS relocations against weak,
undefined symbols, so avoid printing a warning here.  This makes it
possible to compile libc.so using the initial-exec TLS model on arm64.

Reviewed by:	jrtc27, kib
MFC after:	2 weeks
Sponsored by:	The FreeBSD Foundation
Differential Revision:	https://reviews.freebsd.org/D31069
2021-07-15 22:41:10 -04:00
Warner Losh
5549c6a62f devmatch: don't announce autoloading so much
devmatch rc script would announce it was loading a module multiple
times. It used kldload -n so it really wasn't loading it that many
times, but the message is confusing. Use kldstat to see if we need to
load the module before saying we do. This fixes the vast majority of the
problems. It may be possible to race devmatch with a user invocation and
devd, though quite hard. In that case we'll announce things twice, but
still only load it once. No attempt is made to fix this.

PR:			232782
MFC After:		2 weeks
Sponsored by:		Netflix
2021-07-08 15:22:22 -06:00
Warner Losh
b29ebb9c65 devmatch: Be tolerant of .ko being present.
We document that we did not need .ko on the module names in
devmatch_blocklist, but we really needed them. Keep the documentation
the same, but strip the .ko when we need to use the names so you can
specify either.

PR:			256240
MFC After:		2 weeks
Sponsored by:		Netflix
2021-07-08 15:22:22 -06:00
Thomas Steen Rasmussen
28f47a199c pf: fallback if $pf_rules fails to load
Support loading a default pf ruleset in case of invalid pf.conf.

If no pf rules are loaded pf will pass/allow all traffic, assuming the
kernel is compiled without PF_DEFAULT_TO_DROP, as is the case in
GENERIC.

In other words: if there's a typo in the main pf_rules we would allow
all traffic. The new default rules minimise the impact of this.

If $pf_program (i.e. pfctl) fails to set $pf_fules and
$pf_fallback_rules_enable is YES we will load $pf_fallback_rules_file if
set, or $pf_fallback_rules.

$pf_fallback_rules can include multiple rules, for example to permit
traffic on a management interface.

$pf_fallback_rules_enable defaults to "NO", preserving historic behaviour.

man page changes by ceri@.

PR:		256410
Reviewed by:	donner, kp
Sponsored by:	semaphor.dk
Differential Revision:	https://reviews.freebsd.org/D30791
2021-07-08 14:22:04 +02:00
Helge Oldach
f68e3ea831 devmatch: defer until after kld
devmatch loads a number of things automatically. Allow the list of
things to load to happen first in case those drivers affect what would
be loaded. Normally, this will produce the same results, but there's
some special cases that may not when drivers are loaded that report
other drivers missing, like virtio_pci.

PR:		253287
Reviewed by:	imp
MFC After:	2 weeks
2021-07-07 14:48:40 -06:00
Alex Richardson
e34c713b0e rtld/tests: Avoid function name conflict with libc opendir()
This prevents these tests from being compiled with ASAN since the asan
interceptors also define opendir() but matching the libc function.

Reviewed By:	oshogbo, kib, markj
Differential Revision: https://reviews.freebsd.org/D31038
2021-07-06 10:51:57 +01:00
Mariusz Zaborski
6ba108e52d rc.subr: use _pidcmd to determine pid for protect
This is a more reliable method that accounts for existing pidfiles,
procname and interpreter settings.

Current method of obtaining the pid for oomprotect="YES"|"ALL" processes
in certain cases fails to find a unique pid.

One such case are rc.d scripts defining command as:
command="daemon"

which results in all processes started via daemon being selected and
passed to protect(1) which fails and prints usage:

$ /etc/rc.d/exampled restart
Stopping exampled.
Starting exampled.
usage: protect [-i] command
   protect [-cdi] -g pgrp | -p pid

Running the same with -x reveals what happens:

+ pid='3051 4268 4390 4421 4427 4470 4588 4733 4740 4870 4949 4954 4979
5835 5866 55487 55583 56525 57643 57789 57882 58072 58167 99419'
+ /usr/bin/protect -p 3051 4268 4390 4421 4427 4470 4588 4733 4740 4870
4949 4954 4979 5835 5866 55487 55583 56525 57643 57789 57882 58072 58167
99419
usage: protect [-i] command
   protect [-cdi] -g pgrp | -p pid

We have a more reliable way of obtaining pid already defined in rc.subr
and available when protect(1) needs it. We can simply `eval $_pidcmd`
which also invokes `check_process` but properly accounts for existing
pidfile, procname and interpreter settings.

With the change the pidfile is properly obtained.

Submitted by:	Adam Wolk <a.wolk at fudosecurity.com>
Sponsored by:	Fudo Security
Differential Revision:	https://reviews.freebsd.org/D30367
2021-06-24 20:14:31 +02:00
Alex Richardson
e3be51b2bc rtld-elf: Check the return value of obj_enforce_relro()
The mprotect() call was failing on CheriBSD when changing rtld's relro
page permissions due to missing CHERI capability permissions on the
mprotect() argument but did not report an error since the return value
was being ignored. It should never fail on any supported FreeBSD
architecture, but checking the return value seems like a good
sanity check to me.

Reviewed By:	kib, imp
MFC after:	1 week
Differential Revision: https://reviews.freebsd.org/D30820
2021-06-22 09:10:48 +01:00
Emmanuel Vadot
081fb64492 pkgbase: Create a FreeBSD-nfs package
And move all the nfs related commands there.

Reviewed by:	emaste
Differential Revision:	https://reviews.freebsd.org/D30754
Sponsored by:	Diablotin Systems
2021-06-19 17:49:50 +02:00
Ceri Davies
c43b0081fa devmatch: improve naming of devmatch config variable
Accept the old rc.conf variable if the new one is not present for
compatability.

Approved by:	imp
Differential Revision:	https://reviews.freebsd.org/D30806
2021-06-18 13:17:30 +01:00
Andriy Gapon
20eb6bd8c5 rc.d: liberate powerd from ACPI dependency
For instance, many non-ACPI ARM systems have CPU power / frequency
levels.

Discussed with:	manu
MFC after:	1 week
2021-06-09 12:40:53 +03:00
Konstantin Belousov
e3149e0a02 rtld: Rename -t option to -u (ignore LD_ vars)
Requested by:	arichardson
Sponsored by:	The FreeBSD Foundation
MFC after:	3 days
2021-06-03 01:55:08 +03:00
Ceri Davies
33764e3fd0 libexec/getty/ttys.5: document correct "dialup" flag.
This manpage has incorrectly documented the "dialup"
keyword as "dialin" since it was first added.  Correct that.

Approved by:	blackend (mentor)
MFC after:	12 days
2021-06-01 17:05:16 +01:00
Konstantin Belousov
d81f999ac2 rtld direct exec: add option to ignore LD_ variables
Sponsored by:	The FreeBSD Foundation
MFC after:	1 week
2021-05-29 17:59:09 +03:00
Eugene Grosbein
3bca93e042 rc.d/random: add support for zero harvest_mask
Replace the check for zero harvest_mask with new check for empty string.
This allows one to specify harvest_mask="0" that disables harversting
entropy from all but "pure" sources. Exact bit values for "pure" sources
differ for stable/12 and later branches, so it is handy to use zero.
The check for zero pre-dates introduction of "pure" non-maskable sources
Use empty string to disable altering sysctl kern.random.harvest.mask.

Note that notion of "pure" random sources is not documented in user level
manual pages yet. Still, it helps to extend battery life for hardware
with embedded "Intel Secure Key RNG" by disabling all other sources.

Note that no defaults changed and default behaviour is not affected.

Reported by:	Dmitry Luhtionov
2021-05-26 18:30:24 +07:00
Eugene Grosbein
20eb969793 rc.d: connect sysctl_lastload
Add recently added sysctl_lastload.
2021-05-20 11:51:31 +07:00
Eugene Grosbein
f4b38c360e rc.d: unbreak sysctl lastload
/etc/rc.d/securelevel is supposed to run /etc/rc.d/sysctl lastload
late at boot time to apply /etc/sysctl.conf settings that fail
to apply early. However, this does not work in default configuration
because of kern_securelevel_enable="NO" by default.

Add new script /etc/rc.d/sysctl lastload that starts unconditionally.

Reported by:	Marek Zarychta
MFC after:	1 month
2021-05-19 20:02:31 +07:00
Eugene Grosbein
f5b5de1a32 ipfw: reload sysctl.conf variables if needed
Currently ipfw has multiple components that are not parts
of GENERIC kernel like dummynet etc. They can bring in important
sysctls if enabled with rc.conf(5) and loaded with ipfw startup script
by means of "required_modules" after initial consult
with /etc/sysctl.conf at boot time. Here is an example of one
increasing limit for dummynet hold queues that defaults to 100:

net.inet.ip.dummynet.pipe_slot_limit=1000

This makes it possible to use ipfw/dummynet rules such as:

ipfw pipe 1 config bw 50Mbit/s queue 1000

Such rule is rejected unless above sysctl is applied.
Another example is a group of net.inet.ip.alias.* sysctls
created after libalias.ko loaded as dependency of ipfw_nat.

This is not a problem if corresponding code compiled in custom kernel
so sysctls exist when sysctl.conf is read early or kernel modules
loaded with a loader. This change makes it work also for GENERIC
and modules loaded by means of rc.conf(5) settings.

MFC after:	1 month
2021-05-18 04:03:15 +07:00
Ceri Davies
1760799b4c Remove references to timed(8)
There are still references to timed(8) and timedc(8) in the base system,
which were removed in 2018.

PR: 255425
Reported by:	Ceri Davies <ceri at submonkey dot net>
Reviewed by:	ygy, gbe
MFC after:	1 week
Differential Revision:	https://reviews.freebsd.org/D30232
2021-05-13 09:53:08 +02:00
Konstantin Belousov
529ab5a759 rtld: initialize default dlerror_seen_val as true
There should be no error after startup.

PR:	255698
Reported by:	Eugene M. Kim <astralblue@gmail.com>
Sponsored by:	The FreeBSD Foundation
MFC after:	1 week
2021-05-13 02:31:29 +03:00
Andrew Fengler
30659d1dcb Add support for adding default routes for other FIBs
Make rc.d/routing read defaultrouter_fibN and ipv6_defaultrouter_fibN, and
set it as the default gateway for FIB N, where N is from 1 to (net.fibs - 1)
This allows adding gateways for multiple FIBs in the same format as the main
gateway. (FIB 0)

Reviewed by:	olivier, rgrimes, bcr (man page)
Sponsored by:	ScaleEngine Inc.
Differential Revision:	https://reviews.freebsd.org/D22706
2021-05-12 01:59:10 +00:00
Konstantin Belousov
630caa95d4 rtld: preserve the 'seen' state of the dlerror message in errmsg_save()
rtld preserves its current error message around calls to user init/fini
lists, to not override original error with potential secondary errors
caused by user code recursing into rtld.  After 4d9128da54,
the preservation of the string itself is not enough, the 'seen'
indicator must be preserved as well.  Otherwise, since new code does not
clear string (it cannot), call to _rtld_error() from errmsg_restore()
revived whatever message was consumed last.

Change errmsg_save() to return structure recording both 'seen' indicator
and the message, if any.

PR:	255698
Reported by:	Eugene M. Kim <astralblue@gmail.com>
Sponsored by:	The FreeBSD Foundation
MFC after:	3 days
2021-05-11 02:47:00 +03:00
Xin LI
8725f0b9db Revert "getty: push assignment to inner block."
This reverts commit c7b8bc367f.

Pointed out by:	trasz
2021-05-09 09:05:52 -07:00
Xin LI
c7b8bc367f getty: push assignment to inner block.
No functional change.

MFC after:	2 weeks
2021-05-08 21:53:58 -07:00
Xin LI
5927c1bb31 getty: const'ify search pointer.
No functional change.

MFC after:	2 weeks
2021-05-08 21:53:29 -07:00
Warner Losh
d00aff6278 provide easy way to disable kld_list loading
set kld_disbale=y or any value in the boot loader and that will
disable loading of the kld_list.

Differential Revision: https://reviews.freebsd.org/D26939
2021-05-05 15:19:41 -06:00
Lutz Donnerhacke
5c4fe2ac81 service/ipfw: Silence warning on restart
Once the ipfw0 interface has been created, ifconfig(8) create will
throw a warning: ifconfig: create: bad value' when trying to create it
again.

PR:		241013
Submitted by:	Jose Luis Duran
Approved by:	kp
MFC after:	2 weeks
Differential Revision: https://reviews.freebsd.org/D30083
2021-05-03 12:27:20 +02:00
Edward Tomasz Napierala
cd17774d30 rc: remove the 'addswap' script.
It's been unused since 268a55bc98.

Sponsored By:	EPSRC
Differential Revision:	https://reviews.freebsd.org/D29749
2021-04-26 10:22:47 +01:00
Edward Tomasz Napierala
b68e656922 rc: improve dependencies for growfs
Previously it depended on sysctl, which itself has no dependencies,
so rcorder(8) had a bit too much flexibility when choosing when to run
it.  Make sure it runs just between 'fsck' and 'root'.

Reviewed By:	jmg, imp
Sponsored By:	EPSRC
Differential Revision:	https://reviews.freebsd.org/D29748
2021-04-25 13:41:44 +01:00
Edward Tomasz Napierala
45aec46246 rc: make the 'linux' script explicitly load filesystem modules
This removes a minor annoyance with Linux jails, where you often
want linux_mounts_enable="NO", yet you want those filesystems
available for mounting in jails; normally mount(8) would result
in kernel automatically loading the KLD, but this doesn't work
inside jails or chroots.

PR:		242955
Sponsored By:	EPSRC
Differential Revision:	https://reviews.freebsd.org/D29725
2021-04-21 12:54:37 +01:00
Edward Tomasz Napierala
034669e856 rc: replace NETWORK with NETWORKING
This improves consistency; the NETWORKING script provides both,
so there should be no functional change.

Differential Revision:	https://reviews.freebsd.org/D29587
2021-04-12 15:28:48 +01:00
Edward Tomasz Napierala
82431b7506 rc: remove the 'archdep' script
It was unused since 405c3050f1, which removed iBCS support.

This also moves the 'linux' rc script slightly earlier, which
might help in some setups.  The original version of this patch
moved it even more, before 'mountcritlocal', which would fixe
mount(8) errors due to missing /dev/shm in setups with entries
for /path/to/chroot/dev/shm without the "late" flag; however,
in the end 'kldxref' turned out to depend on 'mountcritlocal'
anyway.

Reported By:	pstef
Reviewed By:	dchagin
Sponsored By:	EPSRC
Differential Revision:	https://reviews.freebsd.org/D29590
2021-04-12 15:18:17 +01:00
Edward Tomasz Napierala
93457c4ec9 rc: kldxref needs mountcritlocal, not root
As pointed out by tijl@, kldxref(8) is in /usr/sbin, thus requires
/usr to be mounted.

Fixes:		44f3b1aa98
Sponsored By:	EPSRC
2021-04-11 15:19:33 +01:00
Konstantin Belousov
9b33518ada rtld_lock.h: add some comments about versioning of struct RtldLockInfo
Sponsored by:	The FreeBSD Foundation
MFC after:	6 days
2021-04-11 11:16:13 +03:00
Konstantin Belousov
4d9128da54 rtld: make dlerror() thread-local
PR:	95339
Discussed with:	arichardson
Sponsored by:	The FreeBSD Foundation
MFC after:	1 week
Differential revision:	https://reviews.freebsd.org/D29633
2021-04-10 17:33:34 +03:00
Konstantin Belousov
08bfbd4359 rtld: workaround for broken ABI
Right now, libthr does not initialize RtldLockInfo.rtli_version when calling
_rtld_thread_init(), which makes versioning the interface troublesome.

Add a workaround: if the calling object of _rtld_thread_init() exports
the "_pli_rtli_version" symbol, then consider rtli_version initialized.
Otherwise, forcibly set it to RTLI_VERSION_ONE, currently defined as
RTLI_VERSION.

Export "_pli_rtli_version" from libthr and properly initialize rtli_version.

Sponsored by:	The FreeBSD Foundation
MFC after:	1 week
Differential revision:	https://reviews.freebsd.org/D29633
2021-04-10 17:33:33 +03:00
Konstantin Belousov
4d7f08c84b rtld: unstaticise lockinfo and obj_from_addr()
Sponsored by:	The FreeBSD Foundation
MFC after:	1 week
Differential revision:	https://reviews.freebsd.org/D29633
2021-04-10 17:33:33 +03:00
Kristof Provost
95be9288f0 (t)ftp-proxy: use libpfctl
Reviewed by:	glebius
MFC after:	4 weeks
Sponsored by:	Rubicon Communications, LLC ("Netgate")
Differential Revision:	https://reviews.freebsd.org/D29641
2021-04-10 11:16:02 +02:00
Edward Tomasz Napierala
44f3b1aa98 rc: kldxref only needs to depend on rootfs, not FILESYSTEMS
This makes it run a bit earlier in the startup, which will
be useful for the linux rc script later on.

Reviewed By:	imp (earlier version)
Sponsored By:	EPSRC
Differential Revision:	https://reviews.freebsd.org/D29589
2021-04-10 09:31:12 +01:00
Konstantin Belousov
e8b9c508b7 rtld: use _get_tp() in __tls_get_addr()
This eliminates some non-trivial amount of code duplication, where done.
Only x86 and mips are handled right now.

Tested by:      bdragon (powerpc), mhorne (riscv)
Sponsored by:	The FreeBSD Foundation
MFC after:	1 week
Differential revision:	https://reviews.freebsd.org/D29623
2021-04-09 23:46:24 +03:00
Konstantin Belousov
7cb32a0d03 rtld: avoid recursing on rtld_bind_lock for write
This fixes a regression in d36d681615, where the call to
__tls_get_address() was performed under rtld_bind_lock write-locked.
Instead use tls_get_addr_slow() directly, with locked = true.

Reported by:	jkim, many others
Tested by:	jkim, bdragon (powerpc), mhorne (riscv)
Sponsored by:	The FreeBSD Foundation
MFC after:	1 week
Differential revision:	https://reviews.freebsd.org/D29623
2021-04-09 23:46:24 +03:00
Konstantin Belousov
8950804842 rtld: allow to use tls_get_addr_slow() from context where rtld_bind_lock is locked
Explicit locked parameter is added

Sponsored by:	The FreeBSD Foundation
MFC after:	1 week
Differential revision:	https://reviews.freebsd.org/D29623
2021-04-09 23:46:24 +03:00
Konstantin Belousov
85d846b369 rtld: style tls_get_addr_slow
Sponsored by:	The FreeBSD Foundation
MFC after:	1 week
Differential revision:	https://reviews.freebsd.org/D29623
2021-04-09 23:46:24 +03:00
Konstantin Belousov
99c2ce7ef1 rtld: define TLS_DTV_OFFSET on all architectures
Sponsored by:	The FreeBSD Foundation
MFC after:	1 week
Differential revision:	https://reviews.freebsd.org/D29623
2021-04-09 23:46:24 +03:00
Konstantin Belousov
34ca6025dd rtld_lock.h: Expand scope for IN_RTLD to avoid some conflicts with libc
Sponsored by:	The FreeBSD Foundation
MFC after:	1 week
Differential revision:	https://reviews.freebsd.org/D29623
2021-04-09 23:46:23 +03:00
Konstantin Belousov
f61ecf60cf rtld/x86/reloc.c: style
Sponsored by:	The FreeBSD Foundation
MFC after:	1 week
Differential revision:	https://reviews.freebsd.org/D29623
2021-04-09 23:46:23 +03:00
Konstantin Belousov
38e0610df7 rtld_lock.h: remove tautological extern's
Sponsored by:	The FreeBSD Foundation
MFC after:	1 week
Differential revision:	https://reviews.freebsd.org/D29623
2021-04-09 23:46:23 +03:00
Andrew Turner
4d9488674f Remove the last users of ARM_TP_ADDRESS
This was only needed on 32-bit arm prior to ARMv6. As we only support
ARMv6 or later remove it.

Reviewed by:	mannu
Sponsored by:	Innovate UK
Differential Revision:	https://reviews.freebsd.org/D29624
2021-04-08 07:52:54 +00:00
Konstantin Belousov
d36d681615 rtld dl_iterate_phdr(): dlpi_tls_data is wrong
dl_iterate_phdr() dlpi_tls_data should provide the TLS module segment
address, and not the TLS init segment address as it does now.

Reported by:	emacsray@gmail.com
PR:	254774
Sponsored by:	The FreeBSD Foundation
MFC after:	1 week
2021-04-06 03:23:08 +03:00
Chuck Tuffli
f30f11f878 wait for device mounts in zpool and dumpon
If the root file system is composed from multiple devices, wait for
devices to be ready before running zpool and dumpon rc scripts.

An example of this is if the bulk of the root file system exists on a
fast device (e.g. NVMe) but the /var directory comes from a ZFS dataset
on a slower device (e.g. SATA). In this case, it is possible that the
zpool import may run before the slower device has finished being probed,
leaving the system in an intermediate state.

Fix is to add root_hold_wait to the zpool and dumpon (which has a
similar issue) rc scripts.

PR:		242189
Reported by:	osidorkin@gmail.com
Reviewed by:	allanjude
MFC after:	1 month
Differential Revision:	https://reviews.freebsd.org/D29101
2021-04-05 09:25:04 -07:00
Edward Tomasz Napierala
015351de04 rc: make ctld depend on NETWORKING
This fixes a problem where ctld(8) would refuse to start on boot
with a specific IP address to listen on configured in ctl.conf(5).
It also fixes a problem where ctld(8) would fail to start with
some network interfaces which require a sysctl.conf(5) tweak
to configure them, eg to switch them from InfiniBand to IP mode.

PR:		232397
Reported By:	Mahmoud Al-Qudsi <mqudsi at neosmart.net>
Submitted By:	Jeremy Faulkner <gldisater at gmail.com>
Reviewed By:	mav
Differential Revision:	https://reviews.freebsd.org/D29578
2021-04-05 16:40:54 +01:00
Mariusz Zaborski
e086aff91c rtld: fix the man page
In f90218886f in man page I used LD_PRELOAD_PATH_FDS instead of
LD_PRELOAD_FDS.

Reported by:	rpokala
2021-03-25 00:51:44 +01:00
Mariusz Zaborski
f90218886f rtld: introduce PRELOAD_FDS
The new PRELOAD_FDS variable accepts a list of file descriptors
that should be loaded into the process.

This may be used to optimize a loading process - in the case when
we already have a file descriptor to the library; we don't have
to look into multiple PATH to find it.

It may also be used in capability mode to load a single additional
library without the need to open a directory that contains it.

The last use of this functionality t may be a race-free method
of loading libraries.

Reviewed by:	kib, markj
Differential Revision:	https://reviews.freebsd.org/D29334
2021-03-24 23:40:48 +01:00
Mariusz Zaborski
852a88a1d9 rtld: style nits
No functional change intended.

Requested by:	kib
2021-03-24 23:40:48 +01:00
Edward Tomasz Napierala
e026f4243c Fix the 'linux' rc script on aarch64.
Previously it would try to load linux.ko instead of linux64.ko
and fail.  While here, don't try to match 'linuxaout'; even if
implemented, it's the same module as `linuxelf`.

Reviewed By:	emaste
Sponsored By:	EPSRC
Differential Revision:	https://reviews.freebsd.org/D29288
2021-03-18 20:30:21 +00:00
Dag-Erling Smørgrav
409388cfac Fix post-start check when unbound.conf has moved.
Reported by:	phk@
MFC after:	1 week
2021-03-10 15:53:25 +00:00
Baptiste Daroussin
f61831d2e8 Revert "rc: implement parallel boot"
This is not ready yet for prime time

This reverts commit 763db58932.
This reverts commit f1ab799927.
This reverts commit 6e822e9957.
This reverts commit 77e1ccbee3.
2021-03-09 14:26:07 +01:00
Rick Macklem
09673fc0f3 mountd(8): generate a syslog message when the "V4:" line is missing
Daniel reported that NFSv4 mounts were not working despite having
set "nfsv4_server_enable=YES" in /etc/rc.conf.  Mountd was logging a
message that there was no /etc/exports file.
He noted that creating a /etc/exports file with a "V4:" line in it
was needed make NFSv4 mounts work.
At least one "V4:" line in one of the exports(5) file(s) is needed to
make NFSv4 mounts work. This patch fixes mountd.c so that it logs a
message indicting that there is no "V4:" line in any exports(5)
file when NFSv4 mounts are enabled.
To avoid this message being generated erroneously, /etc/rc.d/mountd
is updated to make sure vfs.nfsd.server_max_nfsvers is properly set
before mountd(8) is started.

Reported by:	debdrup
PR:	253901
MFC after:	2 weeks
2021-03-08 16:08:02 -08:00
Ed Maste
7f72497ef7 libc: Use musl's optimized strchr and strchrnul
Parentheses added to HASZERO macro to avoid a GCC warning, and formatted
with clang-format as we have adopted these and don't consider them
'contrib' code.

Obtained from:	musl (snapshot at commit 4d0a82170a25)
Reviewed by:	kib (libc integration), mjg (both earlier)
MFC after:	1 month
Sponsored by:	The FreeBSD Foundation
Differential Revision:	https://reviews.freebsd.org/D17630
2021-03-01 21:09:59 -05:00
Cy Schubert
763db58932 rc: save and restore $IFS
Fix another bug in 77e1ccbee3. $IFS
should be fully restored for its other users.

PR:		249192
Reported by:	jkim
MFC after:	3 weeks
X-MFC with:	77e1ccbee3
2021-02-25 22:03:38 -08:00
Cy Schubert
f1ab799927 rc: fix rc script parsing
77e1ccbee3 introduced a bug whereby
rc scripts in etc/rc.d and $local_startup failed to parse output
from called commands because IFS was set to " " instead of the
default " \t\n". This caused parsing of output that contains any
whitespace character, such as tabs and newlines, not matching just a
space to fail.

PR:		249192
MFC after:	3 weeks
X-MFC with:	77e1ccbee3
2021-02-25 11:47:56 -08:00
Cy Schubert
6e822e9957 rc: fix parse of $local_startup
77e1ccbee3 introduced parallel execution
of rc. It separated groups with line feeds (\n) and elements within
groups using spaces. This is a natural separation due to rcorder
using spaces and lines to separate elements within groups with groups
of services separated by line feeds.

77e1ccbee3 parses the output from rcorder
by setting $IFS. However it failed to reset $IFS to default ' \t\n'
prior to calling find_local_scripts_new(), causing find_local_scripts_new()
to fail parsing $local_startup for site-specific local rc scripts, i.e.
${LOCALBASE}/etc/rc.d. This caused daemons from ports and packages such
as postfix, dovecot, nut, and others in ${LOCALBASE} not to be started.

PR:		249192
MFC after:	3 week
X-MFC with:	77e1ccbee3
2021-02-23 21:12:49 -08:00
Chris Rees
d27999e513 Create dhclient pid directory if it doesn't exist
- Upgrading from older FreeBSD versions can result in errors

 - /var/run can be a tmpfs, and this should be handled correctly

Approved by:		markj
Differential Revision:	https://reviews.freebsd.org/D28843
MFC after:		2 weeks
2021-02-23 13:19:44 +00:00
Rick Parrish
77e1ccbee3 rc: implement parallel boot
take advantage of the rcorder -p argument to implement parallel
booting in rc.

According to the author non scientific tests:
on a Core 2 Duo with spinning disk:

| Services enabled | before | after | saving |
| 0                | 8s     | 8s    | 0      |
| 1                | 13s    | 13s   | 0      |
| 2                | 17s    | 13s   | 5      |
| 3                | 23s    | 13s   | 10     |
| 4                | 28s    | 13s   | 15     |
| 5                | 33s    | 13s   | 20     |

PR:		249192
MFC after:	3 weeks
2021-02-23 11:16:53 +01:00
Cy Schubert
e2ad10e847 Remove the redundant ipfilter IPv6 rc rules load.
As of ipfilter 5.1.2 the IPv4 and IPv6 rules tables have been merged.
The ipf(8) -6 option has been a NOP since then. Currently the additional
ipf -6 load statement in rc.d/ipfilter simply added the second ipfilter
rules file to the table already populated by the previous ipf command.
Plenty of time has passed since ipfilter 5.1.2 was imported. It is time to
remove the option from rc.conf and the rc script.

Differential Revision:	https://reviews.freebsd.org/D28615
2021-02-22 11:20:18 -08:00
Rick Macklem
2f48313ab2 nfs-over-tls: add rc scripts for rpc.tlsclntd and rpc.tlsservd
Add rc.d scripts that control the recently committed rpc.tlsclntd(8)
and rpc.tlsservd(8) daemons.

Reviewed by:	gbe
MFC after:	2 weeks
Differential Revision:	https://reviews.freebsd.org/D28432
2021-02-18 14:38:01 -08:00
Edward Tomasz Napierala
07cac176fb Don't check compat.linux.emul_path before loading linux(4)
Fix e40787f900 to make libexec/rc/rc.d/linux retrieve the sysctl
after loading the kernel module which provides it, not before.

Reported By:	jkim
Sponsored By:	The FreeBSD Foundation
2021-02-08 22:00:25 +00:00
Edward Tomasz Napierala
e40787f900 Use compat.linux.emul_path instead of hardcoded path in /etc/rc.d/linux
In /etc/rc.d/linux the mounting paths of procfs, sysfs and devfs
are hardcoded to "/compat/linux".  Switching to the content of
compat.linux.emul_path sysctl would allow to switch linuxulator
to different place.

Submitted by:	freebsdnewbie_freenet.de
Sponsored by:	The FreeBSD Foundation
Differential Revision: https://reviews.freebsd.org/D27807
2021-02-02 14:40:58 +00:00
David Chisnall
43d44842ae rtld: Fix null-pointer dereference
When a library is opened via fdlopen, it has a null pointer for its path
and so _rtld_bind can crash as a result of passing the null pointer to
basename() (which passes it to strrchr(), which doesn't do a null check).

PR:	253081
Submitted by:	theraven
MFC after:	1 week
Differential Revision:	https://reviews.freebsd.org/D28442
2021-02-02 16:14:16 +02:00
Kyle Evans
e25ee296c9 stand: lua: enhance lfs.dir() to speed up kernels_autodetect
This eliminates a lot of stat() calls that happen when lualoader renders the
menu with the default settings, and greatly speeds up rendering on my
laptop.

ftype is nil if loader/loader.efi hasn't been updated yet, falling back to
lfs.attributes() to test.

This is technically incompatible with lfs, but not in a particularly
terrible way.

Reviewed-by:	cem
MFC-after:	4 days
Differential Revision:	https://reviews.freebsd.org/D27542
2021-01-29 12:47:29 -06:00
Alex Richardson
bcc5b24456 rc.d/auditd: set pidfile
auditd creates a pidfile so we should use it for status checks.
This also seems to speed up the frequent onestatus checks used in
tests/sys/audit.

Reviewed By:	asomers
Differential Revision: https://reviews.freebsd.org/D28389
2021-01-28 17:24:24 +00:00
Stefan Eßer
24f44a445c Remove dependency on files in /usr/bin
In order to reduce the pre-requisites of this file, implement the
pattern matching and creation of a temporary test directory without
use of grep respectively mktemp.

The new version makes it possible to provide a writable /tmp in any
case and independently of other local or remote file systems (except /
and /dev) being mounted.

The use of "dd if=/dev/random" has the same dependency on /dev/random
being operational as the previous version that used "mktemp". If this
is found to be an issue on platforms that do not have gathered
sufficient entropy at the time when this scriot is run, I suggest to
replace the "dd" command with "ps lauxww" to get a somewhat random
test directory name.

Approved by:	rgrimes, glebius, cy
MFC after:	4 weeks
Differential Revision:	https://reviews.freebsd.org/D28209
2021-01-19 12:56:23 +01:00
Marius Strobl
33b486472e bluetooth: remove support for bt3c(4)
The latter has been removed in 23e124c78b.
2021-01-16 23:53:13 +01:00
Gleb Smirnoff
4f48fd7c56 Add 'tmp' to the list of FILESYSTEMS dependencies. Some scripts that
depend on FILESYSTEMS run mktemp(1).  For systems that have read-only
root this is broken until memory disk based /tmp is instantiated.  At
least 'os-release' and 'motd' are subject to this problem.

Reviewed by:		ngie
Differential Revision:	https://reviews.freebsd.org/D28097
2021-01-15 12:44:06 -08:00
Gleb Smirnoff
7e4eca7136 Revert 97ec6eba65. There shouldn't be a dependency of 'tmp' on
remote filesystems.  Discussed this with Brooks and he can't find
evidence that provoked the change in 2005.  If anything gets broken
I will fix it in a different way, not via rc sequence change.

Discussed with:		brooks
Reviewed by:		ngie
Differential Revision:	https://reviews.freebsd.org/D28097
2021-01-15 12:44:06 -08:00
Gleb Smirnoff
425f68e6ce Follow-up on 51da4b19be. When booting a system with WITHOUT_IPFILTER
the following warning printed at boot time:

  rcorder: requirement `ipfs' in file `/etc/rc.d/netif' has no providers.

Close that using BEFORE rather than REQUIRE for writing down
dependencies of optional components.
2021-01-11 12:36:54 -08:00
Gleb Smirnoff
2903606b60 Add missing rcvar name for os-release. 2021-01-11 08:36:37 -08:00
Ed Maste
10cc3e39d6 Retire obsolete a.out rtld
This was disconnected from the build in 2001 in commit 66422f5b7a
with a comment that it was long overdue even then.

Sponsored by:	The FreeBSD Foundation
2021-01-07 18:50:01 -05:00
Ed Maste
613a08cfa2 rtld: map without PROT_EXEC for relocation
This makes text segment relocation work under W^X.

Submitted by:	Greg V <greg@unrelenting.technology> (original version)
Reviewed by:	kib
MFC after:	2 weeks
Differential Revision:	https://reviews.freebsd.org/D27953
2021-01-05 10:57:14 -05:00
Emmanuel Vadot
e3ff9a1f2e pkgbase: Put the last rc files in the rc package
Reviewed by:	bapt
Differential Revision:	https://reviews.freebsd.org/D27718
2021-01-04 16:21:13 +01:00
Emmanuel Vadot
066a8c691e pkgbase: Install atf and kyua in the tests package
While here make sure that all tests dirs are taggued correctly.

Reviewed by:	bapt, emaste
Differential Revision:	https://reviews.freebsd.org/D27714
2021-01-04 16:20:47 +01:00
Konstantin Belousov
741d78126b rtld: call close(2) after errno is saved
to prevent obliteration of error value from the original syscall.
Also improve error message for short read.

Submitted by:	Konrad Sewiłło-Jopek
MFC after:	1 week
Differential Revision:	https://reviews.freebsd.org/D27864
2021-01-02 04:43:32 +02:00
Ryan Libby
63f93c7e11 rtld-elf: link libcompiler_rt on all architectures
Statically link rtld-elf with libcompiler_rt on all architectures so
that we don't need to try to pick and choose the bits we need from it
for each architecture (we now leave that to the linker).  Compilers may
emit calls to support functions in this library, but because of the use
of the linker flag -nostdlib for rtld's special needs, the library is
not linked as normal.

Previously we had two different solutions.  On some architectures, we
were able to extract reimplementations of the necessary builtin
functions from our special build of libc.  On ARM, we just linked
libcompiler_rt.

This is motivated by the same issue as D26199 and D27665, but should be
a simpler solution that will apply to all architectures.

Reviewed by:	arichardson, kib
Sponsored by:	Dell EMC Isilon
Differential Revision:	https://reviews.freebsd.org/D27736
2020-12-28 00:44:25 -08:00
Ryan Libby
85b8932d0a Revert "rtld-elf: link udivmoddi4 from compiler_rt"
This reverts commit bce2cff0bc.

Revert D27665 in favor of a more general fix coming in D27736.
2020-12-28 00:44:25 -08:00
Marius Strobl
b58c853edf rtld-elf(1): remove obsolete pre_init() hook
It's no longer used since 600ee699ed
and r358358 respectively.
2020-12-25 19:47:46 +01:00
Ryan Libby
bce2cff0bc rtld-elf: link udivmoddi4 from compiler_rt
This fixes the gcc9 build of rtld-elf32 on amd64, which needed an
implementation of udivmoddi4.

rtld-elf uses certain functions normally found in libc, and so it
includes certain files from libc in its own build.  It has two
mechanisms to include files from libc: one that rebuilds source files in
the rtld-elf environment, and one that extracts object files from a
purpose-built no-SSP PIC archive.

In addition to libc functions, rtld-elf may need to link functions
normally found in libcompiler_rt (formerly libgcc).  Now, add an ability
to rebuild libcompiler_rt source files in the rtld-elf environment.  We
don't yet have a need for an object file extraction mechanism.

libcompiler_rt could also supply udivdi3 and umoddi3, but leave them
alone for now.

Reviewed by:	arichardson, kib
Sponsored by:	Dell EMC Isilon
Differential Revision:	https://reviews.freebsd.org/D27665
2020-12-19 08:38:31 +00:00
Ryan Libby
198a0e58ec rtld-libc: fix incremental build
ar cr is an update of an archive, not a creation of a new one.  During
incremental builds (e.g. with meta mode) the archive was not getting
cleaned, and so could retain now-deleted objects from previous builds.
Now, delete the archive before creating/updating it.

Reviewed by:	arichardson, bdrewery, kib
Sponsored by:	Dell EMC Isilon
Differential Revision:	https://reviews.freebsd.org/D27663
2020-12-19 08:38:27 +00:00
Mark Johnston
5120612664 Fix the ipfw service status output when ipfw.ko isn't loaded
Reported by:	lme
Reviewed by:	lme
MFC after:	1 week
Differential Revision:	https://reviews.freebsd.org/D27657
2020-12-18 16:02:28 +00:00
Rick Macklem
31b29217ab Make mountcritremote dependent upon nfscbd.
Although it is not often needed, the nfscbd(8) should be running when
NFSv4 mounts are done if callback functionality is required.
Callback functionality is required for the NFSv4 server to issue
delegations or pNFS layouts.

This patch adds nfscbd to the mountcritremote's REQUIRED line
to ensure it is started before NFS mounts specified in /etc/fstab
are done.

Reviewed by:	0mp
Differential Revision:	https://reviews.freebsd.org/D27506
2020-12-17 00:20:57 +00:00
Michael Tuexen
1d0272a600 When receiving a file having a length, which is a mulitple of the blocksize,
close the file once it is received.

Reported by:	Timo Voelker
MFC after:	1 week
2020-12-15 09:43:18 +00:00
Michael Tuexen
3696db923f Improve the counting of blocks used to transfer a file from the
server to the client in case of not using an OACK: Don't miss
the first block in case of it is not also the last one.

MFC after:		1 week
2020-12-14 22:13:58 +00:00
Michael Tuexen
1f67c37c1f Fix the TFTP client when performing a RRQ for files smaller than 512 bytes
and the server not sending an OACK:
* Close the file.
* Report the correct the number of received blocks.

MFC after:		1 week
2020-12-10 19:36:33 +00:00
Michael Tuexen
a1c4a3eaf1 When dropping packets (RRQ or WRQ) for debugging, report the send
operation as successful. Reporting a failure stops the transfer
instead of using timeouts.

MFC after:		1 week
2020-12-06 18:43:12 +00:00
Conrad Meyer
78599c32ef Add CFI start/end proc directives to arm64, i386, and ppc
Follow-up to r353959 and r368070: do the same for other architectures.

arm32 already seems to use its own .fnstart/.fnend directives, which
appear to be ARM-specific variants of the same thing.  Likewise, MIPS
uses .frame directives.

Reviewed by:	arichardson
Differential Revision:	https://reviews.freebsd.org/D27387
2020-12-05 00:33:28 +00:00
Cy Schubert
353ce81687 Revert r366857.
r366857 created a number of problems, tearing down interfaces too
early in shutdown. This resulted in:

- hung ssh sessions when shutting down or rebooting remotely using
  shutdown (I've used exec shutdown, for years, as apposed to simply
  shutdown).

- NFS mounted filesystems "disappear" prior to unmount.

- dhclient attached to a VLAN on an interface who's parent interface
  has already shut down prints errors.

The path forward is to teach lagg(4) and vlan(4) about WOL.

PR:		251531, 251540
PR:		158734, 109980 are broken again
Reported by:	jhb, emaste, jtl, Helge Oldach<freebsd_oldach.net>
		Martin Birgmeier <d8zNeCFG_aon.at>
MFC after:      Immediately
Discussion at:	https://reviews.freebsd.org/D27459
2020-12-04 19:31:16 +00:00
Konstantin Belousov
71df6a153f rtld: bump r_debug.r_version to 1 from current 0.
Add r_ldbase.

Requested and reviewed by:	emaste
Sponsored by:	The FreeBSD Foundation
MFC after:	1 week
Differential revision:	https://reviews.freebsd.org/D27429
2020-12-01 22:28:01 +00:00
Bjoern A. Zeeb
dd4d5a5ffb IPv6: set ifdisabled in the kernel rather than in rc
Enable ND6_IFF_IFDISABLED when the interface is created in the
kernel before return to user space.

This avoids a race when an interface is create by a program which
also calls ifconfig IF inet6 -ifdisabled and races with the
devd -> /etc/pccard_ether -> .. netif start IF -> ifdisabled
calls (the devd/rc framework disabling IPv6 again after the program
had enabled it already).

In case the global net.inet6.ip6.accept_rtadv was turned on,
we also default to enabling IPv6 on the interfaces, rather than
disabling them.

PR:		248172
Reported by:	Gert Doering (gert greenie.muc.de)
Reviewed by:	glebius (, phk)
MFC after:	2 weeks
Differential Revision:	https://reviews.freebsd.org/D27324
2020-11-25 20:58:01 +00:00
Mateusz Piotrowski
e5912dcf20 Revert r367291 (KEYWORD: shutdown for rc.d/zfs)
The problem is that zfs is asked to stop too early in the shutdown
sequence. Other services, such as syslog may still be running and have some
files open (e.g., under /var/log). This of course causes the messages like:

  cannot unmount '/var/run': umount failed
  cannot unmount '/var/log': umount failed
  cannot unmount '/var': umount failed
  cannot unmount '/usr/home': umount failed
  cannot unmount '/usr': umount failed
  cannot unmount '/': umount failed

For now, let's remove the shutdown KEYWORD from the zfs service, as people are
reporting problems in their setups:
https://lists.freebsd.org/pipermail/freebsd-current/2020-November/077559.html

In the future, we may think of stopping zfs on shutdown after all the other
services and just before init(8) exits. Another interesting option might be to
a new rcorder(8) KEYWORD like "shutdownjail", but this idea would need to be
discussed a bit.

Reported by:	Johan Hendriks <joh.hendriks gmail.com>
Reported by:	Yasuhiro KIMURA <yasu utahime.org>
Reported by:	Tomoaki AOKI <junchoon dec.sakura.ne.jp>
Approved by:	kevans (src)
MFC:		3 days
Differential Revision:	https://reviews.freebsd.org/D27263
2020-11-20 14:37:07 +00:00
Rick Macklem
01b139f212 Fix startup of gssd when /usr is a separately mounted local file system.
meowthink@gmail.com reported that the gssd daemon was not
starting, because /etc/rc.d/gssd was executed before his local
/usr file system was mounted.
He fixed the problem by adding mountcritlocal to the REQUIRED
line.

This fix seems safe and works for a separately mounted /usr file
system on a local disk.
The case of a separately mounted remote /usr file system (such as
NFS) is still broken, but there is no obvious solution for that.
Adding mountcritremote would fix the problem, but it would
cause a POLA violation, because all kerberized NFS mounts
in /etc/fstab would need the "late" option specified to work.

Submitted by:	meowthink@gmail.com
Reported by:	meowthink@gmail.com
Reviewed by:	0mp
MFC after:	2 weeks
Relnotes:	yes
Differential Revision:	https://reviews.freebsd.org/D27203
2020-11-14 01:49:49 +00:00
Rick Macklem
4389a56610 Add support for the new mountd -R option.
r376026 added a new "-R" option to mountd, which tells it to
not support the Mount protocol (not used by NFSv4) and not
register with rpcbind.
Rpcbind is considered a security issue by some sites now.

This patch adds a new yes/no variable called nfsv4_server_only.
When that is set, make vfs.nfsd.server_min_vers=4 and set "=R"
for mountd.
Setting vfs.nfsd.server_min_vers=4 tells nfsd to not register with rpcbind.
While here, add a check for "load_kld nfsd" failing to nfsd.

Reviewed by:	0mp
MFC after:	2 weeks
Differential Revision:	https://reviews.freebsd.org/D26938
2020-11-06 16:33:42 +00:00
Stefan Eßer
08867050c9 Replace literal uses of /usr/local with a variable
The variable defaults to "/usr/local", unless sysctl returns some other
value for "user.localbase".

The value of user.localbase defaults to _PATH_LOCALBASE as defined in
paths.h and thus this commit has no immediate effect.

The purpose of this change is to make /etc/defaults/rc.conf automatically
use the value of _PATH_LOCALBASE when not set to the default value.

Reviewed by:	imp, scottl
MFC after:	1 month
Differential Revision:	https://reviews.freebsd.org/D27014
2020-11-03 12:29:10 +00:00
Mateusz Piotrowski
0cadbd6cd2 rc.d/zfs: Add shutdown to KEYWORDS
The problem is that Without walling /etc/rc.d/zfs on shutdown, resources
associated with ZFS mounts are not freed and the jails will remain in dying
state. In addition, the dataset is now in a dangling state, as the jail it
is attached to is dying.

A known workaround for jails was to add the following lines
to /etc/jail.conf, to make sure that "service zfs stop" is run
when the jail is stopped:

    exec.stop = "/bin/sh /etc/rc.shutdown";
    exec.stop += "/usr/sbin/service zfs stop || /usr/bin/true";

While the workaround seems to be okay-ish for the jail situation, it is
still unclean. However, for physical hosts this may wreak havoc with the
pool if shared spares are used, as "zfs unshare" is never invoked on
shutdown.

PR:		147444
Submitted by:	Markus Stoff <markus__stoffdv_at>
Reported by:	Mykah <mburkhardt__exavault_com>
Reviewed by:	cy
Approved by:	cy (src)
MFC after:	1 week
Relnotes:	yes
Differential Revision:	https://reviews.freebsd.org/D27039
2020-11-03 10:02:52 +00:00
Ed Maste
98b04ac359 rc.d/syscons: remove spaces before tab 2020-10-25 18:27:21 +00:00
Cy Schubert
bd0e0447cb Destroy cloned interfaces at netif stop, netif restart and shutdown.
This is especially important during shutdown because a child interface
of lagg with WOL enabled will not enable WOL at interface shutdown and
thus no WOL to wake up the device (and machine).

PR:		158734, 109980
Reported by:	Antonio Huete Jimenez <tuxillo at quantumachine.net>
		Marat N.Afanasyev <marat at zealot.ksu.ru>
reviewed by:	kp
MFC after:	1 week
Differential Revision:	https://reviews.freebsd.org/D26797
2020-10-19 20:37:38 +00:00
Gordon Bergling
812b09037d Fix a few mandoc issues
- whitespace at end of input line
- skipping paragraph macro: Pp at the end of Sh
- new sentence, new line
- consider using OS macro: Fx
- AUTHORS section without An macro
- skipping paragraph macro: Pp before Ss
2020-10-09 15:14:19 +00:00
Pawel Biernacki
9ef9175912 [pf] /etc/rc.d/pf should REQUIRE routing
When a system with pf_enable="YES" in /etc/rc.conf uses hostnames in
/etc/pf.conf, these hostnames cannot be resolved via external nameservers
because the default route is not yet set. This results in an empty
(all open) ruleset.

Since r195026 already put netif back to REQUIRE, this change does not affect
the issue that the firewall should rather have been setup before any
network traffic can occur.

PR:		211928
Submitted by:	Robert Schulze
Reported by:	Robert Schulze
Tested by:	Mateusz Kwiatkowski
No objections from:	kp
MFC after:	3 days
2020-10-08 11:45:10 +00:00
Kyle Evans
7cc42f6d25 Do a sweep and remove most WARNS=6 settings
Repeating the default WARNS here makes it slightly more difficult to
experiment with default WARNS changes, e.g. if we did something absolutely
bananas and introduced a WARNS=7 and wanted to try lifting the default to
that.

Drop most of them; there is one in the blake2 kernel module, but I suspect
it should be dropped -- the default WARNS in the rest of the build doesn't
currently apply to kernel modules, and I haven't put too much thought into
whether it makes sense to make it so.
2020-10-01 01:10:51 +00:00
Brandon Bergren
24faccc241 [PowerPC64LE] Use a shared LIBC_ARCH for powerpc64le.
Given that we have converted to ELFv2 for BE already, endianness is the only
difference between the two ARCHs.

As such, there is no need to differentiate LIBC_ARCH between the two.

Combining them like this lets us avoid needing to have two copies of several
bits for no good reason.

Sponsored by:	Tag1 Consulting, Inc.
2020-09-23 00:21:51 +00:00
Mark Johnston
3c0c1e01c9 ftpd: Add missing braces around a statfd check
This was harmless but looked incorrect.  No functional change intended.

MFC after:	1 week
Sponsored by:	The FreeBSD Foundation
2020-09-22 15:54:18 +00:00
Mark Johnston
0aabff2880 tftpd: Check for errors from chdir()
MFC after:	1 week
Sponsored by:	The FreeBSD Foundation
2020-09-22 15:54:05 +00:00
Toomas Soome
e307eb94ae loader: zfs should support bootonce an nextboot
bootonce feature is temporary, one time boot, activated by
"bectl activate -t BE", "bectl activate -T BE" will reset the bootonce flag.

By default, the bootonce setting is reset on attempt to boot and the next
boot will use previously active BE.

By setting zfs_bootonce_activate="YES" in rc.conf, the bootonce BE will
be set permanently active.

bootonce dataset name is recorded in boot pool labels, bootenv area.

in case of nextboot, the nextboot_enable boolean variable is recorded in
freebsd:nvstore nvlist, also stored in boot pool label bootenv area.
On boot, the loader will process /boot/nextboot.conf if nextboot_enable
is "YES", and will set nextboot_enable to "NO", preventing /boot/nextboot.conf
processing on next boot.

bootonce and nextboot features are usable in both UEFI and BIOS boot.

To use bootonce/nextboot features, the boot loader needs to be updated on disk;
if loader.efi is stored on ESP, then ESP needs to be updated and
for BIOS boot, stage2 (zfsboot or gptzfsboot) needs to be updated
(gpart or other tools).

At this time, only lua loader is updated.

Sponsored by:	Netflix, Klara Inc.
Differential Revision:	https://reviews.freebsd.org/D25512
2020-09-21 09:01:10 +00:00
Mark Johnston
2ac431003b ftpd: Exit during authentication if an error occurs after chroot().
admbug:		969
Security:	CVE-2020-7468
2020-09-15 20:54:18 +00:00
Kyle Evans
ecebb3cc1d Only set WARNS if not defined
This would allow interested parties to do experimental runs with an
environment set appropriately to raise all the warnings throughout the
build; e.g. env WARNS=6 NO_WERROR=yes buildworld.

Not currently touching the numerous instances in ^/tools.

MFC after:	1 week
2020-09-11 13:28:37 +00:00
Kyle Evans
6703731d6e phttpget: move out of portsnap
Currently, WITHOUT_PORTSNAP forces WITHOUT_FREEBSD_UPDATE because the
latter relies on phttpget, which lives inside the portsnap build bits.

Remove the dependency between these two options by moving phttpget out into
^/libexec and building/installing it if either WITH_PORTSNAP or
WITH_FREEBSD_UPDATE.

Future work could remove the conditional if it's decided that users will use
it independently of either the current in-base consumers.

Reported by:	swills
Reviewed by:	jilles, emaste
MFC after:	3 days
Differential Revision:	https://reviews.freebsd.org/D26255
2020-09-09 00:39:47 +00:00
Konstantin Belousov
1db23efb83 rtld: pass argc/argv/env to dso inits.
This is consistent with how array inits are called, and also makes us
more compatible with glibc environment.

Requested by:	Alex S <iwtcex@gmail.com>
PR:	249162
Reviewed by:	dim, emaste
Sponsored by:	The FreeBSD Foundation
MFC after:	1 week
Differential revision:	https://reviews.freebsd.org/D26351
2020-09-07 21:32:27 +00:00
Konstantin Belousov
12cb97fb37 Undo 'fix off by one' part of r365360.
Noted by:	emaste
Sponsored by:	The FreeBSD Foundation
MFC after:	6 days
2020-09-05 22:48:27 +00:00
Konstantin Belousov
500433057e rtld: do not refuse to relocate objects without dynamic symtabs.
Such objects can still have valid relocations not requiring symbolic
references.

PR:	249121
Reported by:	wsh@riski.sh
Sponsored by:	The FreeBSD Foundation
MFC after:	1 week
2020-09-05 22:44:38 +00:00
Konstantin Belousov
2b49b95cfa rtld: do not process absent dynamic.
If object has no dynamic phdr, do not try to dereference NULL.  This
means that we cannot process any relocation, and that there cannot be
symbols defined, but it is up to static linker to produce meaningful
objects.

PR:	249121
Reported by:	wsh@riski.sh
Sponsored by:	The FreeBSD Foundation
MFC after:	1 week
2020-09-05 22:41:31 +00:00
Konstantin Belousov
5d6d106cf6 rtld: Handle ELF dso with program headers outside the first page.
Reported by:	Alex Arslan <alex.arslan@julialang.org>
PR:	229708
Reviewed by:	dim (previous version), emaste
Sponsored by:	The FreeBSD Foundation
Differential revision:	https://reviews.freebsd.org/D26323
2020-09-05 10:16:24 +00:00
Xin LI
90802d88a5 Declare dependency relationship once instead of twice for zpool
and zvol.
2020-09-05 00:45:46 +00:00
Xin LI
0cd669785d Make zpool on GELI work again.
After OpenZFS import, zpool auto import behavior was moved to an
explicit "zpool import -a", and the zpool rc.d script was added
as a prerequisite of zvol.

However, in r299839, zvol was added as a prerequisite of dumpon,
making it to start very early and before all 'disks' providers.
At this time, dumping on a zvol is not supported, so remove this
requirement and make zpool depend on disks to allow zpool on
full disk encryption work.

Reviewed by:		allanjude
Differential Revision:	https://reviews.freebsd.org/D26333
2020-09-04 23:36:43 +00:00
Brooks Davis
29e1fceb73 Maintain a stack alignment of 16-bytes.
This violated the RISC-V 64-bit ABI.  On CheriBSD this manifested as
a trap when attempting to store 16-byte aligned types while zeroing
the stack.

Reported by:	CHERI, jrtc27
Reviewed by:	mhorne, br
Obtained from:	CheriBSD
Sponsored by:	DARPA
Differential Revision:	https://reviews.freebsd.org/D26327
2020-09-04 21:46:10 +00:00
Cy Schubert
a784185078 /etc/zfs/zpool.cache is the preferred (and new) location of zpool.cache.
Check for it first. Only use /boot/zfs/zpool.cache if the /etc/zfs
version is not found and good.

Reported by:	avg
Suggested by:	avg, kevans
2020-08-27 14:33:46 +00:00
Cy Schubert
f1602aff80 To avoid breakage for those who build/install without ZFS only
rely on rc.d/zpool's BEFORE specification.

Reported by:	rpokala
2020-08-26 20:30:00 +00:00
Cy Schubert
74e2b24f2c As of r364746 (OpenZFS import) existing ZPOOLs are not imported
prior to zvol and mountcritlocal resulting in ZVOLs (swap and
virtual machine UFS filesystems) being unavailable, leading to
boot failures.

We move the zpool import from zfs to a new zpool script, with the
-N option to avoid mounting datasets while making the ZPOOL's
datasets available for "legacy" mount (mountpoint=legacy) and ZVOLs
available for subsequent use for swap (in the zvol rc sript) or
for UFS or other filesystems in fstab(5), mounted by mountcritlocal.

Reviewed by:		freqlabs (previous version)
Differential Revision:	https://reviews.freebsd.org/D26185
2020-08-26 13:13:57 +00:00
Matt Macy
9e5787d228 Merge OpenZFS support in to HEAD.
The primary benefit is maintaining a completely shared
code base with the community allowing FreeBSD to receive
new features sooner and with less effort.

I would advise against doing 'zpool upgrade'
or creating indispensable pools using new
features until this change has had a month+
to soak.

Work on merging FreeBSD support in to what was
at the time "ZFS on Linux" began in August 2018.
I first publicly proposed transitioning FreeBSD
to (new) OpenZFS on December 18th, 2018. FreeBSD
support in OpenZFS was finally completed in December
2019. A CFT for downstreaming OpenZFS support in
to FreeBSD was first issued on July 8th. All issues
that were reported have been addressed or, for
a couple of less critical matters there are
pull requests in progress with OpenZFS. iXsystems
has tested and dogfooded extensively internally.
The TrueNAS 12 release is based on OpenZFS with
some additional features that have not yet made
it upstream.

Improvements include:
  project quotas, encrypted datasets,
  allocation classes, vectorized raidz,
  vectorized checksums, various command line
  improvements, zstd compression.

Thanks to those who have helped along the way:
Ryan Moeller, Allan Jude, Zack Welch, and many
others.

Sponsored by:	iXsystems, Inc.
Differential Revision:	https://reviews.freebsd.org/D25872
2020-08-25 02:21:27 +00:00
Xin LI
941791759c Don't explicitly specify c99 or gnu99 as the default is now gnu99.
MFC after:	2 weeks
2020-08-17 05:57:02 +00:00
Kyle Evans
967fbfd9e2 Properly disable LUA_USE_DLOPEN for bootstrap flua
flua does have some specific bits that will include luaconf.h, but the
definition of LUA_USE_DLOPEN for those won't matter. This belongs in liblua
instead.

To expand on my previous commit, which was a little sparse with details,
it's not really safe to allow LUA_USE_DLOPEN with host lib paths being used.
The host system could have an entirely different lua version and this could
cause us to crash and burn.

If we want to revive this later, we need to make sure to define c module
paths inside OBJDIR that are compiled against whatever version we've
bootstrapped.

Pointy hat:	kevans
2020-08-14 02:40:17 +00:00
Kyle Evans
c2a2b4f3cf flua: don't allow dlopen, et al., for bootstrap flua
There are some logistics issues that need to be sorted out here before we
can actually allow this to work.
2020-08-14 02:22:19 +00:00
Ed Maste
3bd8419597 flua: support "require" for binary objects in the base system
Export symbols from flua, and enable dlopen.

Sponsored by:	The FreeBSD Foundation
Differential Revision:	https://reviews.freebsd.org/D26059
2020-08-13 23:13:05 +00:00
Cy Schubert
51da4b19be When booting a system with WITHOUT_IPFILTER the following errors
are encountered at boot time:

rcorder: requirement `ipfs' in file `/etc/rc.d/netif' has no providers.
rcorder: requirement `ipfilter' in file `/etc/rc.d/netif' has no
providers.
rcorder: requirement `ipfilter' in file `/etc/rc.d/netwait' has no
providers.
rcorder: requirement `ipfilter' in file `/etc/rc.d/net_watchdog' has no
providers.
rcorder: requirement `ipfilter' in file `/etc/rc.d/securelevel' has no
providers.

Listing its own requrements in BEFORE rather than use REQUIRE of
non-optional scripts resolves this issue.

The issue was discovered and patched by glebius at Netflix.

Submitted by:	glebius
Reported by:	glebius
MFC after:	1 week
2020-08-11 23:36:38 +00:00
Cy Schubert
795be686d8 Load ipfilter, ipnat, and ippool rules, and start ipmon in a vnet jail.
PR:		248109
Reported by:	joeb1@a1poweruser.com
MFC after:	2 weeks
2020-07-23 17:39:45 +00:00
Mark Johnston
7df88b9ddd rc.firewall: Merge two identical conditions into one.
No functional change intended.

PR:		247949
Submitted by:	Jose Luis Duran <jlduran@gmail.com>
MFC after:	1 week
2020-07-23 15:03:28 +00:00
Warner Losh
49d941eee0 getty appears to date from 3rd edition research unix. That's the oldest man page
on TUHS and its 'unix 1972' restoration effort has assembler sources that look
like simpler version of what's in the 5th edition.
2020-07-22 00:44:47 +00:00
Simon J. Gerraty
f2be828f97 Revert that! 2020-07-19 23:56:19 +00:00
Simon J. Gerraty
e17f5b1d30 Oops missed Makefile.config 2020-07-19 23:54:00 +00:00
John Baldwin
e9751a84dd Include FreeBSD ABI tag note in the ELF runtime loader.
Reviewed by:	kib
Sponsored by:	DARPA
Differential Revision:	https://reviews.freebsd.org/D25306
2020-07-16 22:01:01 +00:00
Allan Jude
fb6b5cd016 Remove excess spaces from rc.d scripts
The space between words is already being echoed by the space between quoted strings:

    % echo 'foo' 'bar'
    foo bar

    % echo 'foo' ' baz'
    foo  baz

Found in `ipfw` and `mountlate` messages.

PR:		247948
Submitted by:	Jose Luis Duran <jlduran@gmail.com>
MFC after:	2 weeks
Sponsored by:	Klara Inc.
2020-07-13 13:44:54 +00:00
Allan Jude
463b8ebdcb Add cross references betwen ttys(5) and related drivers
nmdm(4), ucom(4), and uart(4)

PR:		247638
Submitted by:	Pau Amma <pauamma@gundo.com>
Reported by:	0mp
MFC after:	4 weeks
Sponsored by:	Klara Inc.
Event:		July 2020 Bugathon
2020-07-11 20:56:57 +00:00
Leandro Lupori
a5467d6ca2 Handle non-PLT GNU IFUNC relocations in rtld
In the last IFUNC related changes to rtld, the code that handled non-PLT
GNU IFUNC relocations ended up getting lost. This could leave some
relocations unhandled, causing crashes or misbehavior. This change restores
the handling of these relocations, but now together with the other IFUNC
relocations, allowing resolvers to reference external symbols.

Reviewed by:	kib
MFC after:	2 weeks
Sponsored by:	Eldorado Research Institute (eldorado.org.br)
Differential Revision:	https://reviews.freebsd.org/D25550
2020-07-06 11:57:59 +00:00
Edward Tomasz Napierala
6ef8f9d28a Make the linux rc script use linrdlnk by default.
This fixes Linux gettyname(3), with caveats (see PR).

PR:		kern/240767
MFC after:	2 weeks
Sponsored by:	The FreeBSD Foundation
Differential Revision:	https://reviews.freebsd.org/D25558
2020-07-04 18:01:29 +00:00
Jung-uk Kim
d836a9dbe3 Fix build with recent byacc. 2020-06-24 02:08:08 +00:00
Mateusz Piotrowski
e1cd6f7986 Remove ldconfig_paths_aout from rc.conf after r362543
Approved by:	imp
Differential Revision:	https://reviews.freebsd.org/D25415
2020-06-23 18:35:00 +00:00
Ed Maste
aa5e1b42e6 ldconfig: remove i386 aout invocation
aout support in ldconfig hasn't been required since FreeBSD 2.x.

Anyone still using FreeBSD 2 shared libraries can use a FreeBSD 2
ldconfig to generate aout ldconfig hints.

Reviewed by:	dim, kib
Sponsored by:	The FreeBSD Foundation
Differential Revision:	https://reviews.freebsd.org/D24883
2020-06-23 15:36:05 +00:00
Eugene Grosbein
064dde3efe network.subr: unobsolete gif_interfaces
There are cases when gif_interfaces cannot be replaced
with cloned_interfaces, such as tunnels with external IPv6 addresses
and internal IPv4 or vice versa. Such configuration requires
extra invocation of ifconfig(8) and supported with gif_interfaces only.

MFC after:	1 week
2020-06-22 17:25:21 +00:00
Ryan Moeller
94a8266684 flua: add ucl library
libucl comes with a Lua library binding.  Build it into flua.

This lets us parse/generate config files in the various formats supported by
libucl with flua.  For example, the following script will detect the format of
an object written to stdin as one of UCL config, JSON, or YAML and write it to
stdout as pretty-printed JSON:

local ucl = require('ucl')
local parser = ucl.parser()
parser:parse_string(io.read('*a'))
local obj = parser:get_object()
print(ucl.to_format(obj, 'json'))

Reviewed by:	kevans, pstef
Approved by:	mmacy (mentor)
Relnotes:	yes
Differential Revision:	https://reviews.freebsd.org/D25009
2020-06-22 03:14:43 +00:00
Konstantin Belousov
7e400f1ade rtld: Apply relro to itself.
Reviewed by:	emaste
Sponsored by:	The FreeBSD Foundation
MFC after:	1 week
Differential revision:	https://reviews.freebsd.org/D25319
2020-06-18 23:07:58 +00:00
Konstantin Belousov
e0b322ae78 rtld: Parse own phdr and notes.
Reviewed by:	emaste
Sponsored by:	The FreeBSD Foundation
MFC after:	1 week
Differential revision:	https://reviews.freebsd.org/D25319
2020-06-18 23:06:05 +00:00
Konstantin Belousov
512baba6a5 rtld: Allow to load ET_DYN && DF_1_PIE when tracing.
This makes old ldd to still work on newer tagged PIE binaries.

Also move debug line for hashes before both decisions to not load are
done, so that the end of digest_dynamic() processing and reason to not
load or load is seen in debug trace.

Noted by:	jhb
Sponsored by:	The FreeBSD Foundation
MFC after:	1 week
2020-06-16 21:29:02 +00:00
Konstantin Belousov
53b1c32035 rtld: Add debug line for dlopen_object().
Sponsored by:	The FreeBSD Foundation
MFC after:	1 week
2020-06-16 21:25:58 +00:00
Konstantin Belousov
de34401534 Systematically pass RTLD_LO_TRACE to load_needed_objects().
Which makes all calls to load_object() to observe the flag, except the
calls for preloaded DSOs.

Sponsored by:	The FreeBSD Foundation
MFC after:	1 week
2020-06-16 21:23:39 +00:00
Konstantin Belousov
510b525fa5 rtld: set osrel when in the direct exec mode.
Rtld itself is a shared object which does not have vendor note, so
after the direct exec of ld-elf.so.1 process has p_osrel set to zero.
This affects the ABI of syscalls.

Set osrel to the __FreeBSD_version value at compile time right after
rtld identified direct exec mode.  Then, switch to the osrel read from
the binary note or zero if no note, right before starting calling
ifunc resolvers, which is the first byte of the user code.

Sponsored by:	The FreeBSD Foundation
MFC after:	1 week
2020-06-12 22:10:03 +00:00
Konstantin Belousov
daf5a897b9 Uppercase 'dso' to indicate that it is abbreviation.
Suggested by:	arichardson
Sponsored by:	The FreeBSD Foundation
MFC after:	1 week
2020-06-02 17:33:10 +00:00
Konstantin Belousov
c1a813209c Do not allow to load ET_DYN object with DF_1_PIE flag set.
Linkers are supposed to mark PIE binaries with DF_1_PIE, such binary
cannot be correctly and usefully loaded neither by dlopen(3) nor as a
dependency of other object.  For instance, we cannot do anything
useful with COPY relocations, among other things.

Glibc already added similar restriction.

Requested and reviewed by:	emaste
Sponsored by:	The FreeBSD Foundation
MFC after:	1 week
Differential revision:	https://reviews.freebsd.org/D25086
2020-06-02 16:20:58 +00:00
Konstantin Belousov
e82d19822e rtld: Add -b option to allow to specify image name different from arg0.
Sponsored by:	The FreeBSD Foundation
MFC after:	1 week
2020-05-31 22:37:33 +00:00
Konstantin Belousov
72bef4d8c6 rtld: Fix indent in print_usage().
Sponsored by:	The FreeBSD Foundation
MFC after:	1 week
2020-05-31 21:56:07 +00:00
Konstantin Belousov
c8dd6c0599 rtld: Add -v switch to print some useful information about the rtld binary.
Sponsored by:	The FreeBSD Foundation
MFC after:	1 week
2020-05-31 21:53:15 +00:00
Konstantin Belousov
f393ade7c8 rtld: Add -p switch to direct exec mode summary line.
Sponsored by:	The FreeBSD Foundation
MFC after:	1 week
2020-05-31 21:34:21 +00:00
Konstantin Belousov
d89d55087f Add version indicators to rtld.
It is wrong to relate on __FreeBSD_version, either from
include/param.h, kernel, or libc, to check for rtld features.
Rtld might be from newer world than the running userspace.

Add special private symbols exported by rtld itself, to indicate the
changes in runtime behavior, and features that cannot be otherwise
detected or deduced at runtime.

Note that the symbols are not exported from libc, so they intentionally
cannot be linked against, and exported from the private namespace from rtld.
Consumers are required to use dlsym(3).  For instance, for
_rtld_version_laddr_offset, user should do
	ptr = dlsym(RTLD_DEFAULT, "_rtld_version_laddr_offset")
or even
	ptr = dlvsym(RTLD_DEFAULT,  "_rtld_version_laddr_offset",
	    "FBSDprivate_1.0");
Non-null ptr means that the change is present.

Also add _rtld_version__FreeBSD_version indicator to report the
headers version used at time of the rtld build.

Reviewed by:	jhb
Sponsored by:	The FreeBSD Foundation
MFC after:	1 week
Differential revision:	https://reviews.freebsd.org/D24982
2020-05-26 19:22:46 +00:00
Konstantin Belousov
c8ad15b6ff Implement Solaris-like link_map l_refname member.
The implementation is based on the public documentation, in particular
dlinfo(3) from Solaris.

Sponsored by:	The FreeBSD Foundation
MFC after:	1 week
2020-05-22 17:52:09 +00:00
Konstantin Belousov
24ea64ded2 Convert linkmap_add() and linkmap_delete() to style(8).
Sponsored by:	The FreeBSD Foundation
MFC after:	1 week
2020-05-22 17:23:09 +00:00
Konstantin Belousov
d0ca9a7fe4 Restore the binary compatibility for link_map l_addr.
Keep link_map l_addr binary layout compatible, rename l_addr to l_base
where rtld returns map base.  Provide relocbase in newly added l_addr.

This effectively reverts the patch to the initial version of D24918.

Reported by: antoine (portmgr)
Reviewed by:	jhb, markj
Tested by:	markj
Sponsored by:	The FreeBSD Foundation
MFC after:	1 week
Differential revision:	https://reviews.freebsd.org/D24946
2020-05-21 22:24:23 +00:00
Konstantin Belousov
2c6d9dc0bb Change the samantic of struct link_map l_addr member.
It previously returned the object map base address, while all other
ELF operating systems return load offset, i.e. the difference between
map base and the link base.

Explain the meaning of the field in the man page.

Stop filling the mips-only l_offs member, which is apparently unused.

PR:	246561
Requested by:	Damjan Jovanovic <damjan.jov@gmail.com>
Reviewed by:	emaste, jhb, cem (previous version)
Sponsored by:	The FreeBSD Foundation
MFC after:	1 week
Differential revision:	https://reviews.freebsd.org/D24918
2020-05-20 22:08:26 +00:00
Colin Percival
3cc620328f Move the devmatch rc.d script before netif in the boot process.
Prior to this change, using lagg to aggregate wired and wireless networks
was broken in the (relatively common) case where wifi drivers + firmware
are loaded by devmatch, since the interface didn't exist at the time when
the lagg interface was being created.

Suggested by:	imp
MFC after:	3 days
2020-05-16 18:37:48 +00:00
Konstantin Belousov
1659238a0c Implement RTLD_DEEPBIND.
PR:	246462
Tested by:	Martin Birgmeier <d8zNeCFG@aon.at>
Sponsored by:	The FreeBSD Foundation
MFC after:	1 week
Differential revision:	https://reviews.freebsd.org/D24841
2020-05-15 11:58:01 +00:00
Eric van Gyzen
fac6dee9eb Remove tests for obsolete compilers in the build system
Assume gcc is at least 6.4, the oldest xtoolchain in the ports tree.
Assume clang is at least 6, which was in 11.2-RELEASE.  Drop conditions
for older compilers.

Reviewed by:	imp (earlier version), emaste, jhb
MFC after:	2 weeks
Sponsored by:	Dell EMC Isilon
Differential Revision:	https://reviews.freebsd.org/D24802
2020-05-12 15:22:40 +00:00
Michal Meloun
5a77ce24b6 Move ARM specific flags to arm/Makefile.inc
Requested by:	kib
MFC with:	r360463
2020-04-29 16:05:50 +00:00
Michal Meloun
7838a78269 Don't allow to use FPU inside of rtld library.
Clang10 may use FPU instructions for optimizing operations with
memory blocks. But we don't want to do lengthy save/restore of all
FPU registers across each rtld_start() call.

MFC after:	3 week
2020-04-29 14:06:42 +00:00
Konstantin Belousov
62af2dc3fb rtld: ignore static TLS segments when tracing.
For PIE binaries, ldd(1) performs dlopen(RTLD_TRACE) on the binary.
It is legal for binary to use initial exec TLS mode, but when such
binary (actually dso) is dlopened, we might not have enough free space
in the finalized static TLS segment.  Make ldd operational by skipping
TLS space allocation, we are not going to execute any code from the
dso anyway.

Reported by:	tobik
PR:	245677
Sponsored by:	The FreeBSD Foundation
MFC after:	1 week
2020-04-22 18:39:45 +00:00
John Baldwin
0c0119856b Abort transfer if fseeko() fails.
CID:		1420215
Reviewed by:	asomers
MFC after:	1 week
Sponsored by:	DARPA
Differential Revision:	https://reviews.freebsd.org/D24454
2020-04-21 17:32:57 +00:00
Cy Schubert
12de77b3db Due to popular demand, revert r360102.
Reported by:	many
2020-04-19 21:38:03 +00:00
Cy Schubert
4574585e8f Conditionally install Kerberos rc files based on MK_KERBEROS_SCRIPTS
instead of MK_KERBEROS. The reason for this change is some users
prefer to build FreeBSD WITHOUT_KERBEROS, wanting to retain the
Kerberos rc scripts to start/stop MIT Kerberos or Heimdal from ports.

PR:		197337
Reported by:	Adam McDougall <ebay at looksharp.net>
Reviewed by:	imp
Differential Revision:	https://reviews.freebsd.org/D24252
2020-04-19 17:01:21 +00:00
Konstantin Belousov
e5c3405ce8 Align initial-exec TLS segments to the p_vaddr % align.
This is continuation of D21163/r359634, which handled the alignment
for global mode.

Non-x86 arches are not handled, maintainers are welcomed.

Tested by:	emaste
Sponsored by:	The FreeBSD Foundation
MFC after:	2 weeks
Differential revision:	https://reviews.freebsd.org/D24366
2020-04-19 09:28:59 +00:00
Mateusz Piotrowski
3e58608634 sshd: Warn about missing ssh-keygen only when necessary
The sshd service is using ssh-keygen to generate missing SSH keys.
If ssh-keygen is missing, it prints the following message:

> /etc/rc.d/sshd: WARNING: /usr/bin/ssh-keygen does not exist.

It makes sense when the key is not generated yet and
cannot be created because ssh-keygen is missing.

The problem is that even if the key is present on the host,
the sshd service would still warn about missing ssh-keygen
(even though it does not need it).

Reviewed by:	emaste
Approved by:	emaste (src)
MFC after:	2 weeks
Differential Revision:	https://reviews.freebsd.org/D23911
2020-04-15 14:07:33 +00:00
Kyle Evans
3a166b3323 yp*: fix -fno-common build
This is mostly two problems spread out far and wide:
- ypldap_process should be declared properly
- debug is defined differently in many programs

For the latter, just extern it and define it everywhere that actually needs
it. This mostly works out nicely for ^/libexec/ypxfr, which can remove the
assignment at the beginning of main in favor of defining it properly.

-fno-common will become the default in GCC10/LLVM11.

MFC after:	3 days
2020-04-06 23:16:05 +00:00
Konstantin Belousov
2f06c66ad5 Make p_vaddr % p_align == p_offset % p_align for (some) TLS segments.
See https://sourceware.org/bugzilla/show_bug.cgi?id=24606 for the test case.
See https://reviews.llvm.org/D64930 for the background and more discussion.

Also this fixes another bug in malloc_aligned() where total size of
the allocated memory might be not enough to fit the aligned requested
block after the initial pointer is incremented by the pointer size.

Reviewed by:	bdragon
Tested by:	antoine (exp-run PR 244866), bdragon, emaste
Sponsored by:	The FreeBSD Foundation
MFC after:	2 weeks
Differential revision:	https://reviews.freebsd.org/D21163
2020-04-04 22:37:50 +00:00
Kyle Evans
28d832f993 flua: follow-up to r359453, don't bother with libedit in bootstrap
The bootstrap flua should not be used for REPL-like activities; exclude it
to save the dependency on libedit and not waste time with it.

X-MFC-With:	r359453
2020-03-30 20:01:44 +00:00
Kyle Evans
b4a19ee242 flua: enable readline bits, courtesy of libedit
This is a nicer experience when attempting to run ad-hoc lua bits in the
flua REPL.

PR:		245121
MFC after:	1 week
2020-03-30 18:43:05 +00:00
Baptiste Daroussin
fdf46c24f0 Revert r359294 per manu's request
It breaks etcupdate

Reported by:	cy
2020-03-25 08:35:55 +00:00
Emmanuel Vadot
77f0f1df8b pkgbase: Stop threating rc files as config files
rc scripts arent configuration files so use FILES instead of CONFS.
While here put rc scripts into related package (sendmail in the FreeBSD-sendmail
package, wpa_supplicant in the FreeBSD-wpa etc ...)

Reviewed by:	bapt, emaste
Differential Revision:	https://reviews.freebsd.org/D24177
2020-03-25 01:36:23 +00:00
Alexander V. Chernikov
7119cdc225 Make ICMP redirect processing depend on routing daemon.
Submitted by:	 lutz at donnerhacke.de
Reviewed by:	melifaro,rgrimes
Differential Revision:	https://reviews.freebsd.org/D23329
2020-03-23 15:27:10 +00:00
Leandro Lupori
e9f87d29a8 Add fsck_flags config option
On UFS with SU+J, sometimes fsck's default recovery from journal marks the
filesystem as clean but some errors remain.

With SU only, default fsck in preen mode sometimes thinks all errors have
been fixed but some still remain.

To address the issues above, this change adds a new config option:
fsck_flags.  By default it's set to -p, but the user may change it to -y
or -f -y, for instance, to force a full fsck after a system crash.

Submitted by:	jhibbits@ (original version)
Reviewed by:	mckusick
Differential Revision:	https://reviews.freebsd.org/D24087
2020-03-18 13:09:47 +00:00
Hiroki Sato
d80eccfc98 Remove /etc/host.conf, which was automatically generated from
nsswitch.conf for backward compatibility.  This file was used
over 19 years ago, before introducing nsdispatch() in the
name-service lookup APIs.

MFC after:	3 days
2020-03-18 08:17:24 +00:00
Brooks Davis
564b9ff2a7 Add an internal liblua and use it in flua.
The new liblua will be used in a forthcoming import of kyua.

Reviewed by:	kevans
Obtained from:	CheriBSD
Sponsored by:	DARPA
Differential Revision:	https://reviews.freebsd.org/D24090
2020-03-17 17:28:12 +00:00
Ed Maste
405e3338ac flua: implement chmod
Lua does not provide a native way to change the permission of a file.

Submitted by:	Yang Wang <2333@outlook.jp>
Reviewed by:	kevans
Sponsored by:	The FreeBSD Foundation
Differential Revision:	https://reviews.freebsd.org/D24036
2020-03-13 15:40:35 +00:00
Ed Maste
13f7dbe822 retire amd(8)
autofs was introduced with FreeBSD 10.1 and is the supported method for
automounting filesystems.  As of r296194 the amd man page claimed that it
is deprecated.  Remove it from base now; the sysutils/am-utils port is
still available if necessary.

Discussed with:	cy
Relnotes:	Yes
Sponsored by:	The FreeBSD Foundation
2020-03-09 20:46:43 +00:00