Michael Brown [Mon, 7 Mar 2011 22:02:07 +0000 (22:02 +0000)]
[prefix] Allow iPXE's own command line to be executed as a script
Some prefixes (e.g. .lkrn) allow a command line to be passed in to
iPXE. At present, this command line is ignored.
If a command line is provided, treat it as an embedded script (without
an explicit "#!ipxe" magic marker). This allows for patterns of
invocation such as
title iPXE
kernel /boot/ipxe.lkrn dhcp && \
sanboot iscsi:10.0.4.1::::iqn.2010-04.org.ipxe.dolphin:storage
Here GRUB is instructed to load ipxe.lkrn with an embedded script
equivalent to
Michael Brown [Mon, 7 Mar 2011 18:32:30 +0000 (18:32 +0000)]
[script] Add "prompt" command
The "prompt" command exposes the prompt() function, allowing a script
to prompt the user for a keypress and take action depending on the
result. For example
#!ipxe
prompt -k 0x197e -t 2000 Press F12 to boot from network... || exit
autoboot
Michael Brown [Mon, 7 Mar 2011 19:17:51 +0000 (19:17 +0000)]
[bios] Recognise scancodes for F5-F12 inclusive
The function keys F5-F12 all conform to the same ANSI pattern as the
other "special" keys that we currently recognise. Add these key
definitions, and shrink the representation of the ANSI sequences in
bios_console.c to compensate.
Michael Brown [Mon, 7 Mar 2011 00:37:50 +0000 (00:37 +0000)]
[image] Simplify image management
Refactor the {load,exec} image operations as {probe,exec}. This makes
the probe mechanism cleaner, eliminates some forward declarations,
avoids holding magic state in image->priv, eliminates the possibility
of screwing up between the "load" and "exec" stages, and makes the
documentation simpler since the concept of "loading" (as distinct from
"executing") no longer needs to be explained.
Michael Brown [Fri, 4 Mar 2011 19:17:53 +0000 (19:17 +0000)]
[spi] Reset device on each access
When chainloading rtl8139.pxe from an old Etherboot rtl8139.zrom, iPXE
can end up misreading the first word of the MAC address from the
EEPROM as being all zeroes. This is presumably because Etherboot has
left the serial EEPROM in an unexpected state.
Fix by using the chip select line to reset the SPI device before we
start accessing it.
Reported-by: Mandar U Jog <mandarjog@gmail.com> Tested-by: Mandar U Jog <mandarjog@gmail.com> Signed-off-by: Michael Brown <mcb30@ipxe.org>
Michael Brown [Fri, 4 Mar 2011 12:14:51 +0000 (12:14 +0000)]
[parseopt] Refer to online documentation for command help
The online documentation (e.g. http://ipxe.org/cmd/ifopen), though not
yet complete, is far more comprehensive than could be provided within
the iPXE binary. Save around 200 bytes (compressed) by removing the
command descriptions from the interactive help, and instead referring
users directly to the web page describing the relevant command.
Michael Brown [Thu, 3 Mar 2011 22:08:50 +0000 (22:08 +0000)]
[iscsi] Change default initiator IQN
The default initiator IQN is "iqn.2000-09.org.etherboot:UNKNOWN".
This is problematic for two reasons:
a) the etherboot.org domain (and hence the associated IQN namespace)
is not under the control of the iPXE project, and
b) some targets (correctly) refuse to allow concurrent connections
from different initiators using the same initiator IQN.
Solve both problems by changing the default initiator IQN to be
iqn.2010-04.org.ipxe:<hostname> if a hostname is set, or
iqn.2010-04.org.ipxe:<uuid> if no hostname is set.
Explicit initiator IQNs set via DHCP option 203 are not affected by
this change.
Unfortunately, this change is likely to break some existing
configurations, where ACL rules have been put in place referring to
the old default initiator IQN. Users may need to update ACLs, or
force the use of the old IQN using an iPXE script line such as
set initiator-iqn iqn.2000-09.org.etherboot:UNKNOWN
Michael Brown [Thu, 3 Mar 2011 19:59:31 +0000 (19:59 +0000)]
[settings] Make fetch_string_setting_copy() easier to use
Most callers of functions in the fetch_setting() family treat any
errors as meaning "non-existent setting". In the case of
fetch_string_setting_copy(), an existent setting can still result in
an error due to memory allocation failure.
Allow the caller to distinguish between a non-existent setting and an
error in allocating memory for the copy, by returning success (and a
NULL buffer pointer) for a non-existent setting.
Michael Brown [Thu, 3 Mar 2011 17:13:44 +0000 (17:13 +0000)]
[settings] Avoid fetch_string_setting_copy() leaving an uninitialised pointer
For consistency with other functions in the fetch_setting() family,
ensure that fetch_string_setting_copy() always initialises the pointer
to the fetched setting even if fetching fails.
Michael Brown [Wed, 23 Feb 2011 17:52:13 +0000 (17:52 +0000)]
[bofm] Allow garbage collection of BOFM code in non-BOFM builds
Most builds will not have BOFM enabled. In these builds, allow all
BOFM code (including BOFM-only code within the individual drivers) to
be garbage-collected at link time in order to save space in the final
binary.
Michael Brown [Thu, 10 Feb 2011 21:34:34 +0000 (21:34 +0000)]
[bofm] Add offline BOFM test facility
Testing BOFM involves gaining access to an IBM blade chassis, which is
often not practical. Provide a facility for testing BOFM
functionality outside of a real IBM blade context.
Michael Brown [Wed, 2 Mar 2011 19:57:01 +0000 (19:57 +0000)]
[autoboot] Allow a SAN boot as a fallback if a filename boot returns
Currently, if both a filename and root-path are present, iPXE will
hook the SAN device but will only attempt to boot from the filename.
Change this behaviour so that both are attempted. Users who want to
avoid booting from the SAN as a fallback can do so via the existing
"skip-san-boot" setting.
This allows for seamless deployment to a SAN target using Windows
Deployment Services (and similar products). A user simply has to
define the root-path option in DHCP and then use WDS to deploy the
system. No further configuration should be required.
Michael Brown [Wed, 2 Mar 2011 19:39:39 +0000 (19:39 +0000)]
[autoboot] Tidy up output following NBP execution
If the NBP returns, then always print a trailing newline, since some
NBPs (e.g. wdsnbp.com) leave the cursor in a random position halfway
across the screen.
Michael Brown [Wed, 2 Mar 2011 19:29:24 +0000 (19:29 +0000)]
[image] Allow download job to complete before acting upon image
Allow the monojob controlling the download to complete before calling
register_image() and friends. This allows the trailing "ok" from
monojob.c to be printed before the image starts executing (and
possibly printing output of its own).
Michael Brown [Wed, 2 Mar 2011 15:33:39 +0000 (15:33 +0000)]
[int13] Automatically reopen underlying block device as needed
We currently use INT 13,00 as an opportunity to reopen the underlying
block device, which works well for callers such as DOS that will use
INT 13,00 in response to any disk errors. However, some callers (such
as Windows Server 2008) do not attempt to reset the disk, and so any
failures become effectively permanent.
Fix this by automatically reopening the underlying block device
whenever we might want to access it.
This makes direct installation of Windows to an iSCSI target much more
reliable.
Michael Brown [Tue, 1 Mar 2011 16:03:44 +0000 (16:03 +0000)]
[prefix] Set the "size" bit in the GDT entry for the flat data segment
The "size" bit (aka the D/B) bit should (as far as I can tell) be
irrelevant for accesses to a non-code, non-stack, expand-upwards
segment. However, VirtualBox fails on some accesses via this segment
if this bit is not set.
This change allows iPXE to boot under VirtualBox without having to
disable VT-x/AMD-V support.
Michael Brown [Fri, 25 Feb 2011 17:46:56 +0000 (17:46 +0000)]
[linux] Remove Linux-specific code from default (non-Linux) build
Building the Linux-specific code (tap.o et al) requires external
headers that have proven to be extremely variable across systems,
causing frequent build failures.
Until this situation is rectified, remove the Linux-specific code from
the default (non-Linux build).
Michael Brown [Fri, 25 Feb 2011 11:10:36 +0000 (11:10 +0000)]
[iscsi] Clarify support for NOP-In
After a more accurate reading of RFC 3720, it becomes clear how NOPs
are supposed to work. The current implementation (which just ignores
NOP-Ins) is sufficient to cope with NOP-Ins sent to update CmdSN, but
will need to be extended before it can cope with NOP-Ins sent as iSCSI
keepalives.
Michael Brown [Thu, 24 Feb 2011 13:22:20 +0000 (13:22 +0000)]
[iscsi] Accept NOP-In PDUs sent by the target
Some iSCSI targets (observed with a Synology DS207+ NAS) send
unsolicited NOP-Ins to the initiator. RFC 3720 is remarkably unclear
and possibly self-contradictory on how NOPs are supposed to work, but
it seems as though we can legitimately just ignore any unsolicited
NOP-In PDU.
Reported-by: Marc Lecuyer <marc@maxiscreen.com> Originally-implemented-by: Thomas Miletich <thomas.miletich@gmail.com> Signed-off-by: Michael Brown <mcb30@ipxe.org>
Michael Brown [Wed, 23 Feb 2011 21:12:56 +0000 (21:12 +0000)]
[build] Use unique entry symbols for each prefix
Some binutils versions will drag in an object to satisfy the entry
symbol; some won't. Try to cope with this exciting variety of
behaviour by ensuring that all entry symbols are unique.
Remove the explicit inclusion of the prefix object on the linker
command line, since the entry symbol now provides all the information
needed to identify the prefix.
Michael Brown [Wed, 23 Feb 2011 20:20:55 +0000 (20:20 +0000)]
[build] Ensure an entry point symbol exists in all builds
Commit 623469d ("[build] Eliminate unused sections at link-time")
introduced a regression in several build formats, in which the prefix
would end up being garbage-collected out of existence. Fix by
ensuring that an entry symbol exists in each possible prefix, and is
required by the linker script.
Michael Brown [Tue, 22 Feb 2011 17:11:37 +0000 (17:11 +0000)]
[efi] Provide space for storing the EFI driver name
Commit d7736fb ("[efi] Allow EFI to control PCI bus enumeration")
introduced a bug in which the EFI driver name became an
(uninitialised) pointer rather than an array.
Michael Brown [Thu, 17 Feb 2011 00:27:51 +0000 (00:27 +0000)]
[efi] Allow EFI to control PCI bus enumeration
EFI performs its own PCI bus enumeration. Respect this, and start
controlling devices only when instructed to do so by EFI.
As a side benefit, we should now correctly create multiple SNP
instances for multi-port devices.
This should also fix the problem of failing to enumerate devices
because the PCI bridges have not yet been enabled at the time the iPXE
driver is loaded.
Michael Brown [Thu, 10 Feb 2011 13:43:58 +0000 (13:43 +0000)]
[pci] Modularise PCI device support
Some operating environments require (or at least prefer) that we do
not perform our own PCI bus scan, but deal only with specified
devices. Modularise the PCI core to allow for this.
Michael Brown [Wed, 16 Feb 2011 18:38:26 +0000 (18:38 +0000)]
[hermon] Add missing __attribute__ (( packed ))
On 64-bit builds, MLX_DECLARE_STRUCT() produces a structure that is
always a multiple of 64 bits long, causing the HCR structure to be
over-length by one dword. This in turn causes hermon_cmd() to write
beyond the end of the HCR, which causes commands to fail.
Reported-by: Itay Gazit <itayg@mellanox.co.il> Signed-off-by: Michael Brown <mcb30@ipxe.org>
Eduardo Habkost [Wed, 16 Feb 2011 18:41:24 +0000 (16:41 -0200)]
[pcbios] Merge adjacent memory regions of same type
Some BIOSes can report multiple memory regions which may be adjacent
and the same type. Since only the first region is used in the
mboot.c32 layer it's possible to run out of memory when loading all of
the boot modules. One may get around this problem by having iPXE
merge these memory regions internally.
This also fixes a bug where some 3c905C variants would return bogus
EEPROM values because of a too short delay after the network reset.
Signed-off-by: Thomas Miletich <thomas.miletich@gmail.com> Reported-by: Peter Huewe <peterhuewe@gmx.de> Tested-by: Peter Huewe <peterhuewe@gmx.de> Signed-off-by: Michael Brown <mcb30@ipxe.org>
Thomas Miletich [Tue, 1 Feb 2011 22:10:17 +0000 (23:10 +0100)]
[3c90x] More fine-grained debugging levels
DBG is reserved for errors and important warnings only.
DBG2 for additional information, e.g. "received packet".
DBGP is used to print the name of every function as it is called.
Signed-off-by: Thomas Miletich<thomas.miletich@gmail.com> Signed-off-by: Michael Brown <mcb30@ipxe.org>
Michael Brown [Thu, 27 Jan 2011 18:48:47 +0000 (18:48 +0000)]
[autoboot] Connect SAN disk during a filename boot, if applicable
For performing installations direct to a SAN target, it can be very
useful to hook a SAN disk and then proceed to perform a filename boot.
For example, the user may wish to hook the (empty) SAN installation
disk and then boot into the OS installer via TFTP. This provides an
alternative mechanism to using "keep-san" and relying on the BIOS to
fall through to boot from the installation media, which is unreliable
on many BIOSes.
When a root-path is specified in addition to a boot filename, attempt
to hook the root-path as a SAN disk before booting from the specified
filename. Since the root-path may be used for non-SAN purposes
(e.g. an NFS root mount point), ignore the root-path if it contains a
URI scheme that we do not support.
Originally-implemented-by: Jarrod Johnson <jarrod.b.johnson@gmail.com> Signed-off-by: Michael Brown <mcb30@ipxe.org>
Michael Brown [Thu, 27 Jan 2011 20:35:48 +0000 (20:35 +0000)]
[init] Remove concept of "shutdown exit flags"
Remove the concept of shutdown exit flags, and replace it with a
counter used to keep track of exposed interfaces that require devices
to remain active.
Flat real mode will have been set up as a side-effect of the
protected-mode call invoked during install_block() for .text16.early;
there is no need to do so explicitly.
Michael Brown [Wed, 26 Jan 2011 23:04:43 +0000 (23:04 +0000)]
[prefix] Use 16-bit protected mode for access to high memory
Flat real mode works perfectly on real hardware, but seems to cause
problems for some hypervisors. Revert to using 16-bit protected mode
(and returning to real mode with 4GB limits, so as not to break PMM
BIOSes).
Allow the code specific to the .mrom format to continue to assume that
flat real mode works, since this format is specific to real hardware.
Michael Brown [Tue, 11 Jan 2011 01:37:27 +0000 (01:37 +0000)]
[pci] Allow pci_vpd_init() return status to be ignored
Most xxx_init() functions are void functions with no failure cases.
Allow pci_vpd_init() to be used in the same way. (Subsequent calls to
pci_vpd_read() etc. will fail if pci_vpd_init() fails.)
Michael Brown [Tue, 30 Nov 2010 01:10:38 +0000 (01:10 +0000)]
[nvo] Remove the non-volatile options fragment list
Since its implementation several years ago, no driver has used a
fragment list containing more than a single fragment. Simplify the
NVO core and the drivers that use it by removing the whole concept of
the fragment list, and using a simple (address,length) pair instead.
Michael Brown [Mon, 10 Jan 2011 23:58:11 +0000 (23:58 +0000)]
[dhcp] Allow use of custom reallocation functions for DHCP option blocks
Allow functions other than realloc() to be used to reallocate DHCP
option block data, and specify the reallocation function at the time
of calling dhcpopt_init().
Michael Brown [Tue, 30 Nov 2010 00:22:49 +0000 (00:22 +0000)]
[dhcp] Remove redundant length fields in struct dhcp_packet
The max_len field is never used, and the len field is used only by
dhcp_tx(). Remove these two fields, and perform the necessary trivial
calculation in dhcp_tx() instead.
Michael Brown [Wed, 15 Dec 2010 18:29:20 +0000 (18:29 +0000)]
[dhcp] Use Ethernet-compatible chaddr, if possible
For IPoIB, we currently use the hardware address (i.e. the eight-byte
GUID) as the DHCP chaddr. This works, but some PXE servers (notably
Altiris RDP) refuse to respond if the chaddr field is anything other
than six bytes in length.
We already have the notion of an Ethernet-compatible link-layer
address, which is used in the iBFT (the design of which similarly
fails to account for non-Ethernet link layers). Use this as the first
preferred alternative to the actual link-layer address when
constructing the DHCP chaddr field.
Michael Brown [Wed, 15 Dec 2010 15:25:08 +0000 (15:25 +0000)]
[pxe] Improve pxe_udp debug messages
The PXE debugging messages have remained pretty much unaltered since
Etherboot 5.4, and are now difficult to read in comparison to most of
the rest of iPXE.
Bring the pxe_udp debug messages up to normal iPXE standards.
Michael Brown [Sat, 4 Dec 2010 02:55:11 +0000 (02:55 +0000)]
[fnrec] Enhance function recording
Enhance the information collected by the function recorder to include
the call site and entry/exit counts. This allows fnrec.pl to produce
a call tree such as:
Note that inlined functions are reported, confusingly, as extra calls
to the *containing* function. Minimise this confusion by adding the
attribute "no_instrument_function" to all functions declared as
inline. (Static functions that have been inlined autonomously by gcc
will still be problematic, but these are far fewer in number.)
projects / thirdparty / ipxe.git / log
