Commit Graph

720 Commits

Author SHA1 Message Date
Toomas Soome
4273aef54d libi386: remove BD_SUPPORT_FRAGS
BD_SUPPORT_FRAGS is preprocessor knob to allow partial reads in bioscd/biosdisk
level. However, we already have support for partial reads in bcache, and there
is no need to have duplication via preprocessor controls.

Note that bioscd/biosdisk interface is assumed to perform IO in 512B blocks,
so the only translation we have to do is 512 <-> native block size.

Differential Revision:	https://reviews.freebsd.org/D16600
2018-08-15 21:21:16 +00:00
Kyle Evans
99a9cf5164 pkgfs_init: Initialize pkg
new_package may not set *pp if it errors out, leaving pkg uninitialized.

Reported by:	GCC
2018-08-15 21:13:10 +00:00
Warner Losh
f835d609b7 stand: Use -Oz/-Os for all loader/stand builds.
While we're not super size constrained, the x86 BIOS /boot/loader has
to be less than about 520k-530k to be reliable. The LUA loader is at
this size today. -Oz saves 15-20% on the size, keeping us safely small
enough (comparable to where we were with the 4th loader). This will
also help with sjg's work on bringing in bearssl, though we may again
be looking for space in the LUA loader.

Size table for clang 6.0.0:
	default		-O1		-Os		-Oz
4th	442368		417792		389120		376832
lua	524288		479232		446464		430080

Tested by: kevans91@ (ubldr on armv7), dhw@ (loader on amdy64)
Differential Revision: https://reviews.freebsd.org/D16724
2018-08-15 20:31:11 +00:00
Edward Tomasz Napierala
8cba5da75e Improve formatting.
MFC after:	2 weeks
Sponsored by:	DARPA, AFRL
2018-08-15 11:39:13 +00:00
Edward Tomasz Napierala
5469cc0ee9 Add SECURITY section to loader(8).
Reviewed by:	bcr, jilles, imp (earlier version)
MFC after:	2 weeks
Sponsored by:	DARPA, AFRL
Differential Revision:	https://reviews.freebsd.org/D16700
2018-08-15 08:45:05 +00:00
Kyle Evans
e112e9d255 MFV r337586: lua: Update to 5.3.5
Bugfix release, nothing too major.

Tested with:	lualoader via userboot, lualoader live
Differential Revision:	https://reviews.freebsd.org/D16665
2018-08-14 18:58:01 +00:00
Warner Losh
eddbdee83d For our INT64 implementation, we can compare integers and numbers
directly because they are the same thing.

Reviewed by: kevans@
2018-08-14 18:45:25 +00:00
Warner Losh
9d45c24cc4 Create a loader for each interpreter for x86 BIOS and all EFI
Create loader_{4th,lua,simp}{,.efi}. All of these are installed by
default. Create LOADER_DEFAULT_INTERP to specify the default
interpreter when no other is specified. LOADER_INTERP is the current
interpreter language building. Turn building of lua on by default to
match 4th. simploader is a simplified loader build w/o any interpreter
language (but with a simple loader).  This is the historic behavir you
got with WITHOUT_FORTH. Make a hard link to the default loader. This
has to be a hard link rather than the more desirable soft link because
older zfsboot blocks don't support symlinks.

RelNotes: Yes
Differential Revision: https://reviews.freebsd.org/D16705
2018-08-14 18:44:41 +00:00
Edward Tomasz Napierala
335fe94f90 Add init_exec kenv(1) variable, to make init(8) execute a file
after opening the console, replacing init as PID 1.

From the user point of view, it makes it possible to run eg the
shell as PID 1, using 'set init_exec=/bin/sh' at the loader(8)
prompt.

Reviewed by:	kib
MFC after:	2 weeks
Relnotes:	yes
Sponsored by:	DARPA, AFRL
Differential Revision:	https://reviews.freebsd.org/D16625
2018-08-14 11:01:52 +00:00
Mark Johnston
40dfdf4382 Add microcode update configuration to the default loader.conf.
MFC after:	6 weeks
Sponsored by:	The FreeBSD Foundation
2018-08-13 17:14:06 +00:00
Kyle Evans
90486977de lualoader: Fix parsing of negative number loader.conf(5) variables
They would previously cause errors, as the regex for these did not tolerate
a leading negative sign, and the variable would simply not parse.
2018-08-13 14:49:07 +00:00
Edward Tomasz Napierala
684e907b17 Move around text in loader(8), in particular stuff related to ZFS,
to restore the usual section order.

MFC after:	2 weeks
Sponsored by:	DARPA, AFRL
2018-08-13 11:56:23 +00:00
Kyle Evans
456a4ad51e libi386: Fix typo in pxe.h
PR:		207337
Submitted by:	Tony Narlock <tony@git-pull.com>
MFC after:	1 week
2018-08-09 03:45:47 +00:00
Kyle Evans
77a52e3f15 libsa: exit on EOF in ngets
It was possible in some rare circumstances for ngets to behave terribly with
bhyveload and some form of redirecting user input over a pipe.

PR:		198706
Submitted by:	Ivan Krivonos <int0dster@gmail.com>
MFC after:	1 week
2018-08-09 02:55:48 +00:00
Kyle Evans
4e6c8e6d83 isoboot, gptboot: Fix WITHOUT_LOADER_GELI (gptboot) and isoboot in general
gptboot was broken when r316078 added the LOADER_GELI_SUPPORT #ifdef to
not pass geliargs via __exec.  KARGS_FLAGS_EXTARG must not be used if we're
not going to pass an additional argument to __exec.

PR:		228151
Submitted by:	guyyur@gmail.com
MFC after:	1 week
2018-08-09 02:06:25 +00:00
Edward Tomasz Napierala
fdfbf12784 Move description of init_shell, init_script, and init_chroot kenv
tunables from loader(8) to init(8), since it's init that actually
uses them.  Add .Xrs at their old place.

MFC after:	2 weeks
Sponsored by:	DARPA, AFRL
2018-08-07 19:23:03 +00:00
Toomas Soome
6938805f41 libsa: gzipfs.c converts pointers to integer types with different sign
Signed versus unsigned char.
2018-08-07 10:53:51 +00:00
Toomas Soome
513f7db592 libsa: dos_checksum() should take unsigned chars
Fix pointers to integers with different sign issue.
2018-08-07 10:48:36 +00:00
Toomas Soome
8750586c61 loader: bd_open() should cleanup from disk_open() error
Since bd_open() does early increment for reference counter and bcache
allocation, it also should undo those in case of the error.

Also remove unused variables rdev, g_err.
2018-08-05 19:17:07 +00:00
Toomas Soome
d1e22b8f08 loader: 337353 did miss to rename 2 write instances
2 write instances got somehow missed.
2018-08-05 18:24:35 +00:00
Toomas Soome
7bb45e615a loader: cstyle cleanup for biosdisk.c
Also switch u_int to uint32_t. Also replace "write" by "dowrite".
No functional changes intended.
2018-08-05 18:19:40 +00:00
Kristof Provost
5abe8cb6de zfsboot: Fix startup crash
On a FreeNAS mini XL, with geli encrypted drives the loader crashed in
geli_read().

When we iterate over the list of disks and allocate the zfsdsk structures we
don’t zero out the gdev pointer. In one case that resulted in geli_read()
(called on the bogus pointer) dividing by zero.

Use calloc() to ensure the zfsdsk structure is always zeroed, so the pointer is
initialised to NULL. As a side benefit it gets rid of one #ifdef
LOADER_GELI_SUPPORT.
2018-08-05 11:15:28 +00:00
Toomas Soome
d11ef379f0 loader: biosdisk.c has leftover geli header.
A small cleanup, remove unneeded #include.
2018-08-04 20:04:40 +00:00
Xin LI
3848ff5cac In r337271, we limited the sector number to the lower of calculated
number and CHS based number.  However, on some systems, BIOS would
report 0 in CHS fields, making the system to think there is 0 sectors.

Add a check before comparing the calculated total with bd_sectors.

Reviewed by:	tsoome, cy
Differential Revision:	https://reviews.freebsd.org/D16577
2018-08-04 14:13:09 +00:00
Kyle Evans
37528fb4fb efi-autoresizecons: Don't fail the boot w/o GOP or UGA
efi-autoresizecons is currently executed for every boot. If it fails, we
risk failing the boot, and we really shouldn't do that unless we absolutely
must.

Not being able to locate GOP or UGA is not a significant enough failure to
kill the boot. We always have the option to fall back to resizing ConOut to
a higher text mode resolution (if available), so do that.

This was detected by Doug [1] while attempting a bhyve + UEFI + PXE boot.
This patch was effectively also submitted by Doug, but I expanded the
comment he had originally sent me a little bit to indicate why this is an OK
idea.

Reported by:	Doug Ambrisko <ambrisko@ambrisko.com> [1]
2018-08-04 06:40:18 +00:00
Cy Schubert
ca237cc5e1 Some drives report a geometry that is inconsisetent with the total
number of sectors reported through the BIOS. Cylinders * heads *
sectors may not necessarily be equal to the total number of sectors
reported through int13h function 48h.

An example of this is when a Mediasonic HD3-U2B PATA to USB enclosure
with a 80 GB disk is attached. Loader hangs at line 506 of
stand/i386/libi386/biosdisk.c while attempting to read sectors beyond
the end of the disk, sector 156906855. I discovered that the Mediasonic
enclosure was reporting the disk with 9767 cylinders, 255 heads, 63
sectors/track. That's 156906855 sectors. However camcontrol and
Windows 10 both report report the disk having 156301488 sectors, not
the calculated value. At line 280 biosdisk.c sets the sectors to the
higher of either bd->bd_sectors or the total calculated at line 276
(156906855) instead of the lower and correct value of 156301488 reported
by int 13h 48h.

This was tested on all three of my Mediasonic HD3-U2B PATA to USB
enclosures.

Instead of using the higher of bd_sectors (returned by int13h) or the
calculated value, this patch uses the lower and safer of the values.

Reviewed by:	tsoome@
Differential Revision:	https://reviews.freebsd.org/D16577
2018-08-03 19:11:00 +00:00
Toomas Soome
3768af833b loader.efi: clean up misleading noise from missing block devices
If there are no block devices, there is no need to printout
error (ENOENT).

In case of netboot, our image path has no block device, no need to make
noise about it.
2018-08-03 07:59:29 +00:00
Toomas Soome
bcc7f4c221 loader.efi: efipart_inithandles() failure should not prevent devsw initialization
The efipart_inithandles() can return error code when there are no block devices,
however, we still should walk and initialize devsw.
2018-08-02 12:43:40 +00:00
Toomas Soome
17e2c2661b libsa: dereferencing type-punned pointer in cd9660
The warning is given by gcc build, but it is good to fix anyhow.
use bcopy instead of direct assignment.
2018-08-02 06:22:10 +00:00
Kyle Evans
bba8f1fe0e ubldr: Bump heap size, 1MB -> 2MB
1MB was leaving very little margin in some of the worse-case scenarios with
lualoader. 2MB is still low enough that we shouldn't have any problems with
UBoot-supported boards.

MFC after: 1 week
2018-08-01 20:08:20 +00:00
Toomas Soome
8696ce6e29 libsa: assignment to char * from u_char *
Cast to char * instead of u_char *
2018-08-01 12:14:10 +00:00
Toomas Soome
d07ea92f55 libsa: bootp is using pointers with different sign
Just change bp_file to char and same for variable s.
2018-08-01 12:06:39 +00:00
Toomas Soome
eba1bc411b libsa: pointer differs in signedness
A small cleanup, fix the argument type and while there, replace (char *)0 with
NULL.
2018-08-01 11:40:52 +00:00
Kyle Evans
1ddc8a8e68 Follow up to r336919 and r336921: s/efi.rt_disabled/efi.rt.disabled/
The latter matches the rest of the tree better [0]. The UPDATING entry has
been updated to reflect this, and the new tunable is now documented in
loader(8) [1].

Reported by:	imp [0], Shawn Webb [1]
2018-07-30 18:13:20 +00:00
Warner Losh
e78f6dd79f Be more conservative about setting hw.uart.console
Note when we've found a 8250 PNP node. Only try to set hw.uart.console
if we see one (otherwise ignore serial hints). The 8250 is the only
one known to have I/O ports, so limit the guessing to when we've
positively seen one.  And limit this to x86 since that's the only
platform where we have I/O ports. Otherwise, we'd set the serial port
to something crazy for the platform and fall off the cliff early in
boot.

Differential Revision:  https://reviews.freebsd.org/D16463
2018-07-28 19:44:20 +00:00
Warner Losh
08fa847abf Use % for printf, not a dollar sign 2018-07-27 22:35:07 +00:00
Warner Losh
0f0d65df7b Style nits noted by rpokala 2018-07-27 22:31:38 +00:00
Warner Losh
34b3f88f36 In the BootXXXX message, use the actual boot variable.
Fix stupid compile issue that crept in when I moved patches between trees.
2018-07-27 22:29:20 +00:00
Warner Losh
fb4c478715 Add some additional debug to loader.efi
Add some verbose debugging information to the loader's new
choices. I'll remove these / put them behind a DEBUG define at a later
time. This is to give additional information if there's any dangling
edge cases not contemplated by the code. r336789 had most of this
change, but had the wrong commit message. This refines it slightly.
2018-07-27 22:29:15 +00:00
Warner Losh
8c18b82b3d stand debug 2018-07-27 22:00:00 +00:00
Kyle Evans
be2050dab9 lualoader: "nextboot_file" should be spelled "nextboot_conf"
See: /boot/defaults/loader.conf

Reported by:	gtetlow (inadvertently)
2018-07-27 11:35:58 +00:00
Warner Losh
1e354803ee Ignore Device Paths in the Boot Info that don't have Media path
nodes. These show up in default entries on SuperMicro motherboards and
elsewhere. Before, we couldn't find a block device associated with the
device path and return BAD_CHOICE which was an instant
failure. However, a VendHw node isn't specifc, so when we don't find a
media path, return NOT_SPECIFIC so that the rest of the algorithms
work.

Sponsored by: Netflix.
2018-07-26 05:08:58 +00:00
Ruslan Bukin
8e8fbf193d Disable 'C'-compressed ISA extension.
It works excellent, but KDB disassembler and DTrace FBT provider for
RISC-V do lack support for it. They currently handle 4-byte instructions
only, while C-compressed ISA extension introduces 2-byte instructions
freely mixing them together.

So disable it for now.

Reviewed by:	markj@
Sponsored by:	DARPA, AFRL
Differential Revision:	https://reviews.freebsd.org/D16436
2018-07-25 16:07:35 +00:00
Warner Losh
b43c6042c3 Finalize the boot manager protocol support for next-stage boot
loading.

If we are booting in a conforming UEFI Boot Manager Environment, then
use the BootCurrent variable to find the BootXXXX we're using. Once we
find that, then if it contains more than one EFI_DEVICE_PATH in its
what to boot section, try to use the last one as the kernel to
load. This will also set the default root partition as well. If
there's only one path, or if there's an error along the way, assume
that nothing specific was specified and revert to the old
algorithm. If something was specified, but not found, then fail the
boot. Otherwise you that, specific thing. On FreeBSD, this can be set
using efibootmgr -l <loader> -k <kernel>. We try a few variations of
kernel to cope with the fact that UEFI comes from a DOS world where
paths might be upper case and/or contain back-slashes.

Note: In an ideal world, we'd work out where we are in chain loading
by looking at the passed-in image handle and doing name
matching. However, that's unreliable since at least boot1.efi booted
images don't have that, hence the assumption that loader.efi needs to
load the last thing on the list, if possible.

The reason we fail for something specific is so that we can fully
participate in the UEFI Boot Manager Protocol and fail over to the
next item in the list of BootOrder choices when something goes wrong
at this stage.

This implements was was talked about in freebsd-arch@ last year
https://docs.freebsd.org/cgi/getmsg.cgi?fetch=3576+0+archive/2017/freebsd-arch/20171022.freebsd-arch
and documented in full (after changed resulting from the discussion) in
https://docs.google.com/document/d/1aK9IqF-60JPEbUeSAUAkYjF2W_8EnmczFs6RqCT90Jg/edit#
although one or two minor details may have been modified in this
implementation to make it work, and the ZFS MEDIA PATH extension isn't
implemented. This does not yet move things to ESP:\efi\freebsd\loader.efi.

RelNotes: Yes
Sponsored by: Netflix
Differential Revision: https://reviews.freebsd.org/D16403
2018-07-23 20:36:59 +00:00
Warner Losh
00a47597a3 Implement efiblk_get_pdinfo_by_device_path
Lookup a block device by it's device path. We use a 'loose' lookup
whereby we scan forward to the first Media Path portion of the device
path, then look at all our handles for one whose first Media Path
matches. This will also work if the device path pointed to has a
following file path (or paths) as that's ignored. It assumes that
there's only one media path node that describes the entire device,
which is true as of the latest UEFI spec (2.7 Errata A) as far as I've
been able to determine.

Sponsored by: Netflix
2018-07-23 20:36:54 +00:00
Warner Losh
c6c2a73c0c Implement efi_devpath_length
Return the total length, in bytes, of the device path (including the
terminating node at the end).

Sponsored by: Netflix
2018-07-23 20:36:50 +00:00
Warner Losh
13850b362f Implement efi_devpath_match_node
Returns true if the first node pointed to by devpath1 is identical to
the first node pointed to by devpath2, with care taken to not read
past the end of the valid parts of either devpath1 or
devpath2. Otherwise, returns false.

Sponsored by: Netflix
2018-07-23 20:36:45 +00:00
Warner Losh
3ef81aa0f5 Store the number of handles we get back in efipart_nhandles rather
than the number of bytes. Don't divide by the element size every time
we have to iterate. Eliminate now-unused variables.

Sponsored by: Netflix
2018-07-23 20:36:41 +00:00
Warner Losh
ee4e1d5807 Implement efi_devpath_to_media_path
Takes a generic device path as its input. Scans through it to find the
first media_path node in it and returns a pointer to it. If none is
found, NULL is returned.

Sponsored by: Netflix
2018-07-23 20:36:25 +00:00
Warner Losh
afe7cf8749 Fix the attempt to see if we're overriding the console in the command
line args. I had thought console would be NULL, but it's efi. Set it
to efi (as a clue) before we initialize the console, then test it to
see if it changed on the command line to do the automatic
override. This gets my serial console back.
2018-07-23 06:38:48 +00:00
Warner Losh
3b74102205 Older zfs boot blocks don't support symlinks. install the link to
zfsloader as a hard link. While newer ones do, the whole point of the
link was to transition to the new world order smoothly. A hard link is
less flexible, but it works and will result in fewer bumps. Adjust
UPDATING entry to match.
2018-07-23 06:04:05 +00:00
Warner Losh
1f9bd5f67c Hoist EFI_TARGET and SOURCE_DATE_EPOCH up into efi/Makefile.inc 2018-07-20 05:18:03 +00:00
Warner Losh
fdcfd483e3 NM and OBJCOPY are already defined for all builds. There's no need to
conditionally define them here.
2018-07-20 05:17:56 +00:00
Warner Losh
1a14a0bfb7 Eliminate zfsloader man page.
Remove all cross references to zfsloader.8 and /boot/zfsloader.
Move ZFS specific info into loader.8.

Sponsored by: Netflix
Differential Revision: https://reviews.freebsd.org/D16361
2018-07-20 05:17:49 +00:00
Warner Losh
060679ef9c Collapse zfsloader functionality back down into loader.
We no longer really need a separate zfsloader. It was useful when we
were first supporting ZFS and had limited ability to properly boot off
of ZFS without the special boot loader. Now that the boot loader has
matured, go the way loader.efi pioneered and just build one
binary. Change the name of the loader to load in the secondary boot
blocks to be just /boot/loader. Provide a symbolic link from zfsloader
to loader so people who have not upgraded their boot blocks are not
affected. This has the happy benefit of making coexistence easier as
well (fewer binaries in the matrix).

Discussed with: allanjude@, kevans@
RelNotes: Yes
Sponsored by: Netflix
Differential Revision: https://reviews.freebsd.org/D16361
2018-07-20 05:17:37 +00:00
Warner Losh
2168b18916 If the console is already set, don't override it.
If console=X is specified on the command line, it's effectively
overridden by the current code. It shouldn't do that.
2018-07-18 22:45:45 +00:00
Warner Losh
e39cc26762 If rootdev is set, use it as currdev.
Setting rootdev in the enviornment should specify things
completely. If it is set, then have it override everything else.

PR: 229770
Differential Review: https://reviews.freebsd.org/D16322
2018-07-18 22:45:26 +00:00
Warner Losh
5a399a1a39 Remove bogus attempt to simulate scrolling. It's not needed and messes
up serial output. Setting the cursor position after every character is
inefficient, and causes all lines to be over-printed in the serial
console for the boot loader. Allow the terminal to do the emulation.

This isn't completely perfect when the size of the terminal attached
to the serial port isn't the same as 80x25 to match the viedoe console
(or whatever the video console is). While imperfect still, these
changes make it much better.

This makes the serial port useful with UEFI.

Differential Revision: https://reviews.freebsd.org/D16309
2018-07-17 21:45:14 +00:00
Warner Losh
11df3a2881 More typos
Noticed by: ian@
2018-07-17 20:26:17 +00:00
Warner Losh
debf8b839b Fix typo in the command summary.
Of course, I can't get the command to work, but it's a start...
2018-07-17 20:11:52 +00:00
Li-Wen Hsu
ceab45b744 zfsboot: fix build with WITHOUT_LOADER_GELI
Reviewed by:	ian
Sponsored by:	The FreeBSD Foundation
Differential Revision:	https://reviews.freebsd.org/D16292
2018-07-16 19:21:50 +00:00
Warner Losh
d59db438cb Minor adjustments:
o Fix the parsing of the device path. a last minute change terminated
  it too soon.
o Kill setting LINES. We don't need to do it, and even if we did hard
  coding it to 24 is wrong.
o Now that the console is working again for the loader, adjust the
  printfs to be more in line with other platforms.
2018-07-14 06:43:37 +00:00
Warner Losh
a44c75739d Add reporting of whether or not a keyboard is detected. In addition,
note that r336270's commit message was slightly incorrect. It changed
the default setting of the console to honor the ConOut
variable. Overrides via the command line are still possible, and we
use the devices in ConOut to set the proper console. If, for example,
serial cosnole is specified, we'll set console to "efi" if ConOut has
a serial port list and to either "efi comconsole" or "comconsole efi"
if not depending on whether -D or -D -h was specified.

RelNotes: Yes
Sponsored by: Netflix
2018-07-14 01:46:19 +00:00
Warner Losh
3fecfbebe9 uefi stand: Guess the console better
For server machines, ComOut is set to the set of devices that the efi
console suppots. Parse it to see if we have serial, video or both.
Make that take precidence over the command line args. boot1.efi parses
them, but loader.efi doesn't. It's not clear where to read boot.conf
from, so we don't do that. The command line args can still be set via
efibootmgr, which is more inline with the UEFI boot manager to replace
that. These args are typically used only to set serial vs video and
the com speed line. We can infer that from ComOut, so do so.
Remember the com speed and hw.uart.console to match.

RelNotes: yes
Sponsored by: Netflix
Differential Revision: https://reviews.freebsd.org/D15917
2018-07-14 00:40:38 +00:00
Warner Losh
f9ac902319 Define ADR subtype of ACPI type for a device path. 2018-07-13 21:03:32 +00:00
Warner Losh
bb50079093 Catch up to the inflate renaming. 2018-07-13 20:08:18 +00:00
Ian Lepore
949662216a Fix glitched indentation (and rewrap as needed due to deeper indent).
No functional changes.

Reported by:	rpokala@
2018-07-13 18:58:37 +00:00
Warner Losh
47bec71dd0 Use if rather than case for a simple boolean. gcc thinks blks is
undefined sometimes with the case, but enc is always 0 or 1, so
and if / else is better anyway.
2018-07-13 18:19:33 +00:00
Ian Lepore
c1418270b2 Extend loader(8) geli support to all architectures and all disk-like devices.
This moves the bulk of the geli support from lib386/biosdisk.c into a new
geli/gelidev.c which implements a devsw-type device whose dv_strategy()
function handles geli decryption. Support for all arches comes from moving
the taste-and-attach code to the devopen() function in libsa.

After opening any DEVT_DISK device, devopen() calls the new function
geli_probe_and_attach(), which will "attach" the geli code to the open_file
struct by creating a geli_devdesc instance to replace the disk_devdesc
instance in the open_file. That routes all IO for the device through the
geli code.

A new public geli_add_key() function is added, to allow arch/vendor-specific
code to add keys obtained from custom hardware or other sources.

With these changes, geli support will be compiled into all variations of
loader(8) on all arches because the default is WITH_LOADER_GELI.

Relnotes:	yes
Sponsored by:	Microchip Technology Inc
Differential Revision:	https://reviews.freebsd.org/D15743
2018-07-13 17:50:25 +00:00
Warner Losh
25bc561e68 There's two files in the sys tree named inflate.c, in addition
to it being a common name elsewhere. Rename the old kzip one
to subr_inflate.c.

This actually fixes the build issues on sparc64 that my inclusion of
.PATH ${SYSDIR}/kern created in r336244, so also revert the broken
workaround I committed in r336249.

This slipped passed me because apparently, I never did a clean build.
2018-07-13 17:41:28 +00:00
Warner Losh
623810105e Fix sparc64 builds
gcc is complaining about struct infate being defined in a parameter
list. It's inclear how long this has been broken, but the fix is
simple enough.
2018-07-13 17:15:14 +00:00
Warner Losh
c96ac12e5c Transition to boot_env_to_howto and boot_howto_to_env in the boot
loader.

Sponsored by: Netflix
Differential Revision: https://reviews.freebsd.org/D16205
2018-07-13 16:43:29 +00:00
Warner Losh
4569e91328 Eliminate boot loader copies of boot arg parsing.
Eliminate 4 of the copies of the arg parsing in /boot/laoder
by using boot_parse_cmdline.

Sponsored by: Netflix
Differential Revision: https://reviews.freebsd.org/D16205
2018-07-13 16:43:23 +00:00
Warner Losh
52379d36a9 Create helper functions for parsing boot args.
boot_parse_arg		to parse a single arg
boot_parse_cmdline	to parse a command line string
boot_parse_args		to parse all the args in a vector
boot_howto_to_env	Convert howto bits to env vars
boot_env_to_howto	Return howto mask mased on what's set in the environment.

All these routines return an int that's the bitmask of the args
translated to RB_* flags. As a special case, the 'S' flag sets the
comconsole_speed env var. Any arg that looks like a=b will set the env
key 'a' to value 'b'. If =b is omitted, 'a' is set to '1'.  This
should help us reduce the number of redundant copies of these routines
in the tree.  It should also give a more uniform experience between
platforms.

Also, invent a new flag RB_PROBE that's set when 'P' is parsed.  On
x86 + BIOS, this means 'probe for the keyboard, and if it's not there
set both RB_MULTIPLE and RB_SERIAL (which means show the output on
both video and serial consoles, but make serial primary).  Others it
may be some similar concept of probing, but it's loader dependent
what, exactly, it means.

These routines are suitable for /boot/loader and/or the kernel,
though they may not be suitable for the tightly hand-rolled-for-space
environments like boot2.

Sponsored by: Netflix
Differential Revision: https://reviews.freebsd.org/D16205
2018-07-13 16:43:05 +00:00
Warner Losh
007b82d7ab Stop using ../zfs/libzfs.h but instead use libzfs.h.
While ../zfs/libzfs.h mostly works, there are a few situations where
it does not. Eliminate the problem by using plain libzfs.h, like we do
for ufs support. This fixes the weird cases, and is easier to
understand. It also follows the general style convetion of avoiding
../ in #includes.
2018-07-08 07:42:58 +00:00
Warner Losh
b8902de147 Move ZFS files into libsa
Move the libzfs stuff into libsa. There's no need for it to be a
separate library. The separate library adds to the issues of build
ordering that we see from time to time. Move the filesystem support
into libsa, like all the other filesystem support rather than making
zfs the odd-duck out.

Discussed with: allanjude@
2018-07-08 07:42:49 +00:00
Emmanuel Vadot
7fcce9c487 loader: fdt: Try to load every possible DTB from u-boot
U-Boot setup a few variables :

 - fdt_addr which is the board static dtb (most of the time loaded before
   u-boot or coming from some hardware like a ROM)
 - fdt_addr_r which is a location in RAM that holds the DTB loaded by
   u-boot or before u-boot

In the case of u-boot + rpi firmware the DTB is loaded in RAM but the location
still end up in the fdt_addr variable and the fdt_addr_r variable exist.

Change the behavior so we test that a DTB exists for every possible variable :

 - fdt_addr_r is checked first as if u-boot needed to modify it the
   correct DTB will live there.
 - fdt_addr is checked second as if we run on a hardware with DTB in ROM
   it means that we what/need to run that
 - fdtaddr looks like a FreeBSD-ism but since I'm not sure leave it.

Reviewed by:	gonzo
Differential Revision:	https://reviews.freebsd.org/D16101
2018-07-04 07:37:45 +00:00
Allan Jude
436dbc4262 stand/common/disk.c: dev->d_offset still needs to be set to 0
With r335868, I thought this was no longer necessary. I was wrong.

Reported by:	ian
Sponsored by:	Klara Systems
2018-07-03 05:53:27 +00:00
Alexander Motin
5e2169bda1 Cut currdev dev and path fields for ZFS on the last colon.
Previously the code cut those fields on second colon, that prevented
boot from boot environments with colon in their names.  This change
moves the limitation from dev field to path, which is empty by default.

Reviewed by:	allanjude, tsoome
MFC after:	2 weeks
Sponsored by:	iXsystems, Inc.
Differential Revision:	https://reviews.freebsd.org/D16068
2018-07-02 20:56:17 +00:00
Emmanuel Vadot
f127d86390 stand: uboot: Do not panic if we can't find a boot device
It is really anoying to panic when there is no boot device as you
cannot see the availables ones.
2018-07-02 18:23:43 +00:00
Allan Jude
32c52b4847 stand/common/disk.c: Read partition table relative to the start of the disk
If a disk is of an oddball size, like the 200mb + 512b used in rootgen.sh,
when disk_open() is called on a GELI encrypted partition, attempts to read
the partition table fail, as they pass through the decryption process which
turns the already plaintext data into jibberish.

When reading the partition table, always pass a slice and partition setting
of -1, and an offset of 0. Setting the slice to -1 prevents a false
positive when checking the slice against the cache of GELI encrypted
slices.

Reviewed by:	imp, ian
Sponsored by:	Klara Systems
Differential Revision:	https://reviews.freebsd.org/D15847
2018-07-02 18:19:08 +00:00
Warner Losh
b77bd037a1 Revert preference to be an int.
While in base we use it as a boolean (of the wrong spelling), there's
at least one out of tree user that needs it to be int since priorirty
is a small int, not a 0/1. In deference to the time it's wasted me and
my team, push this up into FreeBSD for whatever short life boot1 may
have in the tree.
2018-06-28 19:42:10 +00:00
Bryan Drewery
96a0acc4ce Don't use CCACHE for linking.
MFC after:	2 weeks
Sponsored by:	Dell EMC
2018-06-27 19:29:15 +00:00
Devin Teske
5cc9fabecf check-password.4th(8): Fix manual [in]accuracy
SVN r280384 updated the maximum password length from 16 bytes to 255. The
manual was not updated to reflect this. Found while working on kern/207069.

MFC after:	3 days
X-MFC-to:	stable/11 stable/10
Sponsored by:	Smule, Inc.
2018-06-24 19:29:29 +00:00
Allan Jude
ec82884e87 Revert r335276
This was causing issues for people booting.
I will likely bring this back as an optional feature, similar to
boot0sio, like gptboot-serial or something.

PR:		221526
Reported by:	O. Hartmann <ohartmann@walstatt.org>, Thomas Laus <lausts@acm.org>
2018-06-20 00:14:54 +00:00
Kyle Evans
80eb81f6f0 lualoader: Correct kernel_options handling
`kernel_options` were being passed as flags to load, rather than to the
kernel being loaded. This is the kernel_options counterpart to r335009.
2018-06-19 15:05:31 +00:00
Warner Losh
52666d3675 Remove stray debugging line.
Noticed by: ian@
2018-06-18 19:53:11 +00:00
Warner Losh
62bd02cee5 stand: move libgeliboot into libsa.
Reduce by 1 the number of crazy libraries we need in stand by moving
geli into libsa (where architecturally it belonged all along). This
just moves things around without any code changes.
2018-06-18 16:24:42 +00:00
Allan Jude
d48c0a685d stand/common/disk.c: Update debug printf
This was missed in r330809 because it is compiled out by default

Sponsored by:	Klara Systems
2018-06-17 19:31:35 +00:00
Allan Jude
6fee3bb8e1 gptboot, zfsboot, gptzfsboot: Enable the video and serial consoles early
Normally the serial console is not enabled until /boot.config is read and
we know how the serial console should be configured.  Initialize the
consoles early in 'dual' mode (serial & keyboard) with a default serial
rate of 115200. Then serial is re-initialized once the disk is decrypted
and the /boot.config file can be read.

This allows the GELIBoot passphrase to be provided via the serial console.

PR:		221526
Requested by:	many
Reviewed by:	imp
Sponsored by:	Klara Systems
Differential Revision:	https://reviews.freebsd.org/D15862
2018-06-17 03:18:56 +00:00
Warner Losh
02cff72a7b Many netboot scenarios don't have /boot/defaults/loader.conf. As
a fallback, also check /boot/kernel/kernel existing as well, since
that's the fallback behavior of the loader.
2018-06-17 01:26:57 +00:00
Allan Jude
71f0c895c1 Avoid reading past the end of the disk in zfsboot.c and biosdisk.c
The GELI boot code rounds reads up to 4k, since the encrypted sectors are
4k, and must be decrypted as a unit. With oddball sized disks (almost
always virtual), this can lead to reading past the end of the disk.

Reviewed by:	imp, tsoome
Sponsored by:	Klara Systems
Differential Revision:	https://reviews.freebsd.org/D15844
2018-06-16 15:16:02 +00:00
Allan Jude
f567034d1b biosdisk.c: fix type in debug printf
Sponsored by:	Klara Systems
2018-06-16 06:23:07 +00:00
Allan Jude
23e7fe13ee biosdisk.c: add missing \n to error message
Sponsored by:	Klara Systems
2018-06-16 05:58:33 +00:00
Allan Jude
bdeee1b234 biosdisk.c remove redundant variable
`rdev` and `disk` serve the same purpose, read the partition table without
the `d_offset` or `d_slice` set, so the read is relative to the start of
the disk. Reuse the already initialized `disk` instead of making another
copy later.

Sponsored by:	Klara Systems
2018-06-16 04:50:40 +00:00
Allan Jude
86981e426d Correct logic error in biosdisk.c:bd_realstrategy()
The wrong condition is used when evaluating the return of disk_ioctl()
This results in reaching the 'We should not get here' branch in most casts

Reviewed by:	imp
Sponsored by:	Klara Systems
Differential Revision:	https://reviews.freebsd.org/D15839
2018-06-16 02:50:29 +00:00
Warner Losh
ab80f5423d There's no need to walk through the tables looking for the smbios
table if we're just going to ignore it on arm, so expand, slightly,
the reach of the ifdef. Move the buffer to the inner block so we
don't have a separate #ifdef far away from these lines.

The issue on arm is that smbios_detect does unaligned accesses, which
in the u-boot implementing EFI context causes a crash.
2018-06-15 19:07:37 +00:00
Warner Losh
e8282eabad Move arg parsing into its own routine for possible later reuse. 2018-06-15 19:07:31 +00:00
Warner Losh
c2bac3e1ba Provide a more direct interface to tell ZFS what the preferred handle
is. We tell the ZFS code now, and it checks rather than having a
callback to do the checks.

This will allow us to have a more graceful fallback code. In the
future, it's anticipated that we may fallback to a more global search
(or implement a command to do so) when reqeusted by the user, or we
detect a violation of the UEFI Boot Manager protocol severe enough to
warrant this backstop. For now, it just allows us to get rid of img as
a global.

Sponsored by: Netflix
2018-06-15 19:07:26 +00:00
Warner Losh
c0626257af Migrate has_keyboard to bool. 2018-06-15 19:07:06 +00:00
Toomas Soome
3557869e5f libsa: open() should use NULL instead of typecasted 0 2018-06-14 16:11:50 +00:00
Toomas Soome
7f56394a3c libsa: remobe unneeded check before free()
free() is checking for NULL, remove duplicate check.
2018-06-14 09:10:34 +00:00
Toomas Soome
7416e819ad libsa: f_rabuf could be NULL
It is possible that we will not get RA buffer from open(), therefore
we must validate RA.
2018-06-14 09:06:53 +00:00
Toomas Soome
f03b083204 libsa: cstyle cleanup for open/close/read/write sources 2018-06-14 08:58:10 +00:00
Warner Losh
5f88ee4479 bootprog_info is generated in vers.c. Move it's definition to
bootstrap.h and remove all the redundant copies.

Sponsored by: Netflix
2018-06-14 06:41:33 +00:00
Warner Losh
f80aa8cf2d Use bool for vargood, since it's a boolean.
Sponsored by: Netflix
2018-06-14 06:41:22 +00:00
Warner Losh
937a79c149 Remove redundant defs.mk includes. They aren't needed. 2018-06-14 06:14:48 +00:00
Warner Losh
46c0e42b6e Initialize variables we later free so they aren't used
uninitialized in the error path.
Remove unused variables.

Sponsored by: Netflix
2018-06-13 17:42:55 +00:00
Warner Losh
6d423eb2cb Remove unused variables.
Sponsored by: Netflix
2018-06-13 17:42:50 +00:00
Warner Losh
caa999479f Remove fail: label. It's unused.
Sponsored by: Netflix
2018-06-13 17:28:06 +00:00
Kyle Evans
35beb9285b lualoader: Match Forth module-loading behavior w.r.t flags
Also as documented in loader.conf(5), ${module}_flags are actually flags to
be passed to the module, not to `load` as was done thus far.
2018-06-12 18:42:41 +00:00
Kyle Evans
5d2791646b lualoader: More black-on-white fixes
To recap the problem: with a black-on-white xterm, the menu draws terribly.
Ideally, we would try our best for a white-on-black context for the menu
since graphics and whatnot might not be tested for other setups and there's
no reasonable way to sample the terminal at this point for the used color
scheme.

This commit attempts to address that further in two ways:
- Instead of issuing CSI bg/fg resets (CSI 39m and CSI 49m respectively for
  "default"), issue CSI bg/fg escape sequences for our expected color scheme
- Reset to *our* default color scheme before we even attempt to load the
  local module, so that we personally don't have any earlier text with the
  console default color scheme.

Reported by:	emaste (again)
2018-06-12 03:44:34 +00:00
Kyle Evans
e21e1dbe0c lualoader: Allow brand-*.lua for adding new brands
dteske@, I believe, had originally pointed out that lualoader failed to
allow logo-*.lua for new logos to be added. When correcting this mistake, I
failed to do the same for brands.

Correct the sub-mistake: creating new brands is almost identical to creating
new logos, except one must use `drawer.addBrand` and 'graphic' is the only
valid key for a branddef at the moment.

While here, I've added `drawer.default_brand` to be set to name of brand to
be used (e.g. 'fbsd', project default).

Eventually this whole goolash will be documented.

Reported by:	kmoore, iXsystems
2018-06-11 01:32:18 +00:00
Kyle Evans
deb8c8f55c lualoader: Support variable substitution in env var settings
We support both of the following cases of substitution:

bar="y"
foo="${bar}"
foo="$bar"

The latter substitution syntax is, of course, not recommended- all
punctuation must be considered potential variable names, and we do not go
through the effort of searching the different combinations of, for instance,
"$x.y.z" to determine if the variable is $x, $x.y, or $x.y.z.

This is not officially documented as supported, but it has worked in
forthloader for what is most likely a long time as `evaluate` is used to
process the right hand side of the assignment.
2018-06-10 02:36:38 +00:00
Kyle Evans
4072dcb3c7 lualoader: Process loader_conf_files properly
loader.conf(5) documents loader_conf_files to mean "additional configuration
files to be processed right after the present file." However, lualoader
ignored loader_conf_files after processing /boot/defaults/loader.conf.

Rewrite these bits to process loader_conf_files after each loaded file.
2018-06-10 01:38:52 +00:00
Kyle Evans
d4f745563d lualoader: Add cli.lua(8) to the tree
Reviewed by:	rpokala
Differential Revision:	https://reviews.freebsd.org/D14818
2018-06-09 19:51:09 +00:00
Kyle Evans
3db6d179e8 stand: One more trivial consolidation (setting environment from howto) 2018-06-09 15:52:29 +00:00
Kyle Evans
28ee318d9c stand: Fix build after r334882
Not sure how this was not caught in Universe.
2018-06-09 15:28:37 +00:00
Kyle Evans
593e2c6ece stand: Consolidate checking for boot flags driven by environment vars
e.g. boot_mute, boot_single, boot_verbose, and friends; we checked for these
in multiple places, consolidate into common/ and allow a setting of "NO" for
any of these to turn them off. This allows systems with multiple
loader.conf(5) or loader.conf(5) overlay systems to easily turn off
variables in later processed files by setting it to NO.

Reported by:	Nick Wolff @ iXsystems
Reviewed by:	imp
2018-06-09 15:10:39 +00:00
Kyle Evans
7150314eae lualoader: Add hook.lua(8) to tree
Reviewed by:	rpokala (w/ "All Rights Reserved" previously added)
Differential Revision:	https://reviews.freebsd.org/D14815
2018-06-09 14:26:30 +00:00
Kyle Evans
f6b2a4291b libsa(3): Correct statement about FS Write-support, name change
- jhb implemented UFS write support a little over 16 years ago.
- Update the library name while we're here.

Reviewed by:	jhb, rpokala
Differential Revision:	https://reviews.freebsd.org/D14476
2018-06-09 14:24:16 +00:00
Simon J. Gerraty
5ad42d0f47 Add st_mtime, st_ino and st_dev for ufs_stat
Differential Revision:	D15064
2018-06-09 02:41:51 +00:00
Kyle Evans
7aba5b2f6a lualoader: Add a loaded hook for others to execute upon config load
This will not be executed on reload, though later work could allow for that.
It's intended/expected that later work won't generally need to happen on
every config load, just once (for, e.g., menu initialization) or just when
config is reloaded but not upon the initial load.
2018-06-06 18:28:17 +00:00
Ian Lepore
9f6fd8397c Remove comments and assertions that are no longer valid after r330809.
r330809 replaced duplication of devdesc struct fields with an embedded copy
of the devdesc struct, to avoid fragility.  That means all the scattered
comments indicating that structs must match are no longer valid.  Likewise
asserts that attempted to mitigate some of the old fragility.

Reviewed by:	imp@
2018-06-05 22:13:45 +00:00
Ian Lepore
3e9c7874ce Make the v*printf() functions in libsa return int instead of void.
This makes them compatible with the C standard signatures, avoiding
spurious mismatch errors in the places where the oddball requirements
of standalone code end up putting two declarations of the same function
in play.
2018-06-05 17:18:10 +00:00
Ian Lepore
1851d70d31 Add vsnprintf() to libsa. Alpha-sort the printf prototypes in stand.h.
I'm not sure why the v*printf() functions in libsa return void instead of
int, but this maintains that convention for the new function.
2018-06-05 14:47:13 +00:00
Dimitry Andric
073193ed51 Fix build of stand with base gcc
* Make autoboot() a static function in stand/common/boot.c, so it does
  not shadow local variables in gptboot.c and zfsboot.c.
* Remove -Winline from the Makefiles for gptboot, gptzfsboot and
  zfsboot, as gcc will always fail to inline some functions, and there
  is nothing we can do about it.
* For gcc <= 4.2.1, silence -Wuninitialized for isoboot, as it produces
  a false positive warning.
* Remove deprecated and unnecessary -mcpu=i386 flag from stand/defs.mk,
  as there is already a -march=i386 flag further in the file.

Reviewed by:	imp
MFC after:	3 days
Differential Revision: https://reviews.freebsd.org/D15628
2018-05-31 14:38:13 +00:00
Warner Losh
3dfe152d8d Pass a struct devdesc to the format commands. Use proper type rather
than doing weird type-punning that happened to work because the size
was right. We copied a zfs devdesc into a disk_devdesc and then after
passing through a NULL pointer reinterpreted it as a
zfs_devdesc. Instead, pass the base devdesc around and 'upcase' when
we know the types are right.

This has the happy side effect of fixing a gcc warning about bad
type punning.

Differential Revision: https://reviews.freebsd.org/D15629
2018-05-31 02:54:11 +00:00
Warner Losh
9958932695 Teach ufs_module.c about bsd labels and probe 'a' partition.
If the check for a UFS partition at offset 0 on the disk fails, check
to see if there's a BSD disklabel at block 1 (standard) or at offset
512 (install images assume 512 sector size). If found, probe for UFS
on the 'a' partition.

This fixes UEFI booting images from a BSD labeled MBR slice when the
'a' partiton isn't at offset 0. This is a stop-gap fix since we plan
on removing boot1.efi in FreeBSD 12. We can't easily do that for 11.2,
however, hence the short MFC window.

Tested by: emaste@
MFC After: 3 days
Sponsored by: Netflix
Differential Revision: https://reviews.freebsd.org/D15598
2018-05-29 03:58:29 +00:00
Marius Strobl
dd5dbb3199 - Unbreak booting sparc64 kernels after the metadata unification in
r329190; sparc64 kernels are always 64-bit but with that revision
  in place, the loader was treating them as 32-bit ones.
- In order to reduce the likelihood of this kind of breakage in the
  future, #ifdef out md_load() on sparc64 and make md_load_dual() -
  which is currently local to metadata.c anyway - static.
- Make md_getboothowto() - also local to metadata.c - static.
- Get rid of the unused DTB pointer on sparc64.
2018-05-21 01:20:19 +00:00
Ed Maste
408c1ff8f4 Clarify that boot_mute / boot -m mutes kernel console only
Perhaps RB_MUTE could mute user startup (rc) output as well, but right
now it mutes only kernel console output, so make the documentation match
reality.

PR:		228193
Sponsored by:	The FreeBSD Foundation
2018-05-16 02:15:18 +00:00
Warner Losh
09001b5c78 Revert r333365
Even though we don't use it, it appears something else requires it to
be != 0 to work. This breaks tftp boot in loader.efi, so revert until
that can be sorted out.
2018-05-10 20:27:12 +00:00
Mariusz Zaborski
31f7586d73 Introduce the 'n' flag for the geli attach command.
If the 'n' flag is provided the provided key number will be used to
decrypt device. This can be used combined with dryrun to verify if the key
is set correctly. This can be also used to determine which key slot we want to
change on already attached device.

Reviewed by:	allanjude
Differential Revision:	https://reviews.freebsd.org/D15309
2018-05-09 20:53:38 +00:00
Kyle Evans
4b3c64f722 Remove "All Rights Reserved" on files that I hold sole copyright on
See r333391 for more detail; in summary: it holds no weight and may be
removed.
2018-05-09 16:44:19 +00:00
Warner Losh
a1947307e7 We don't use f_devdata, so don't set it. Should that need to change
later, we can. This leaves ZFS as the only irregular f_devdata
user in the tree.
2018-05-08 16:16:56 +00:00
Warner Losh
e4eef18848 Use M. Warner Losh everywhere on my copyrights.
Remove 'All Rights Reserved' where I can.
2018-05-01 16:29:22 +00:00
Warner Losh
ad7d33c45b No need to make objects here. 2018-04-27 22:15:18 +00:00
Kyle Evans
fb205d37d7 forthloader: Remove "EFI boot environment message"
Contrary to what the message says, this is not only executed in an EFI
context- it provides functions for use in an EFI environment. I don't think
there's much reason to broadcast this fact when we haven't in the past, so
just remove it.

Reported by:	emaste (a while ago), cperciva
2018-04-25 02:42:57 +00:00
Ed Maste
b25a46f7f7 Add support for linker-type-specific flags
r332090 added a LINKER_TYPE test to add the --no-rosegment flag when
linking the i386 loader components with lld.  Instead, introduce a
general mechanism for setting LDFLAGS for a specific linker type,
and use it for --no-rosegment.

Sponsored by:	The FreeBSD Foundation
Differential Revision:	https://reviews.freebsd.org/D14998
2018-04-19 20:58:09 +00:00
Kyle Evans
807dbf2b94 efi loader: Address two nits with recent graphics changes
- We should be setting a known graphics mode on conout, but we aren't.
- We shouldn't be setting gop mode if we didn't find a good resolution to
  set, but we were. This made efi_max_resolution=1x1 effectively worthless,
  since it would always set gop mode 0 if nothing else.
2018-04-19 03:31:41 +00:00
Kyle Evans
87c0258beb Regenerate FAT templates after r332561 2018-04-16 15:13:18 +00:00
Toomas Soome
b67d407ac7 loader: cstyle cleanup of command.c
just clean it up. no functional changes intended.

Reviewed by:	imp
Differential Revision:	https://reviews.freebsd.org/D15087
2018-04-16 14:10:19 +00:00
Kyle Evans
db911ed570 Rename volume label for ESP
Harry Schmalzbauer reports that some firmware, in his experience, trips
over the ESP we install due to the volume label. It has been theorized that
this is due to some confusion with the label and the path on the ESP to
boot1.efi.

Regardless, Harry found that renaming the label seems to fix it.

PR:		214282
MFC after:	3 days
2018-04-16 13:18:18 +00:00
Toomas Soome
6d68f8acf4 loader: make sure we do not return garbage from help_getnext
Since we do free subtopic and desc in help_getnext(), we need to set them also
NULL, so we make sure we dont get double free().

Approved by:	bapt
Differential Revision:	https://reviews.freebsd.org/D15082
2018-04-16 12:46:14 +00:00
Toomas Soome
746dddb134 loader: command_errmsg should be const
Use const char * for command_errmsg.
2018-04-16 08:41:44 +00:00
Toomas Soome
faa5306390 loader: make sure we use snprintf() in commands.c
Safeguard against memory corruptions.
2018-04-16 08:15:50 +00:00
Toomas Soome
5276f60430 loader: provide values in help_getnext()
With r328289 we attempt to make sure we free the resources allocated in
help_getnext(), however, it is possible that we get no resources allocated
and help_getnext() will return early.

Make sure we have pointers set to NULL early in help_getnext().

Reported by:	Andy Fiddaman
2018-04-16 07:26:23 +00:00
Brooks Davis
3a4fc8a8a1 Remove support for the Arcnet protocol.
While Arcnet has some continued deployment in industrial controls, the
lack of drivers for any of the PCI, USB, or PCIe NICs on the market
suggests such users aren't running FreeBSD.

Evidence in the PR database suggests that the cm(4) driver (our sole
Arcnet NIC) was broken in 5.0 and has not worked since.

PR:		182297
Reviewed by:	jhibbits, vangyzen
Relnotes:	yes
Sponsored by:	DARPA, AFRL
Differential Revision:	https://reviews.freebsd.org/D15057
2018-04-13 21:18:04 +00:00
Warner Losh
fa9dc8d3ed Refactor currdev setting
Refactor the currdev setting to find the device we booted from. Limit
searching when we don't already have a reasonable currdev from that to
the same device only. Search a little harder for ZFS volumes as that's
needed for loader.efi to live on an ESP.

Sponsored by: Netflix
Differential Review: https://reviews.freebsd.org/D13784
2018-04-11 19:46:24 +00:00
Warner Losh
7afc7a8717 Revert r332275, r332272, r332270
There's problems with them. The order of efi stuff isn't quite right,
and there's various problems. Revert until thos problems can be fixed.

Reviewed by: kevans@
2018-04-11 18:02:13 +00:00