Give tap devices a meaningful name, and avoid segmentation faults when
attempting to retrieve ${net0/bustype} by assigning a new bus type for
tap devices.
Signed-off-by: Michael Brown <mcb30@ipxe.org>
Allow for configurable provision of built-in settings by placing them
in a linker table rather than an array.
Signed-off-by: Michael Brown <mcb30@ipxe.org>
HTTP POST requires the ability to associate a parameter list with a
URI. There is no standardised syntax for this. Use a non-standard
URI syntax to incorporate the specification of a parameter list within
a URI:
URI = [ absoluteURI | relativeURI ]
[ "#" fragment ] [ "##params" [ "=" paramsName ] ]
e.g.
http://boot.ipxe.org/demo/boot.php##paramshttp://boot.ipxe.org/demo/boot.php##params=mylist
Signed-off-by: Michael Brown <mcb30@ipxe.org>
Allow memory map entries to be read using the syntax
${memmap/<region>.<properties>.<scale>}
where <region> is the index of the memory region, <properties> is a
bitmask where bit 0 represents the start address and bit 1 represents
the length (allowing the end address to be encoded by having both bits
0 and 1 set), and <scale> is the number of bits by which to shift the
result.
This allows for several values of interest to be encoded. For
example:
${memmap/<region>.1.0:hexraw} # 64-bit start address of <region>
${memmap/<region>.2.0:hexraw} # 64-bit length of <region>, in bytes
${memmap/<region>.3.0:hexraw} # 64-bit end address of <region>
${memmap/<region>.2.10:int32} # Length of <region>, in kB
${memmap/<region>.2.20:int32} # Length of <region>, in MB
The numeric encoding is slightly more sophisticated than described
here, allowing a single encoding to cover multiple regions. (See the
source code for details.) The primary use case for this feature is to
provide the total system memory size (in MB) via the "memsize"
predefined setting.
Signed-off-by: Michael Brown <mcb30@ipxe.org>
Our use of --gc-sections causes the linker to discard the symbols
defined by FILE_LICENCE(), meaning that the resulting licence
determination is incomplete.
We must use the KEEP() directive in the linker script to force the
linker to not discard the licence symbols. Using KEEP(*(COMMON))
would be undesirable, since there are some symbols in COMMON which we
may wish to discard.
Fix by placing symbols defined by PROVIDE_SYMBOL() (which is used by
FILE_LICENCE()) into a special ".provided" section, which we then mark
with KEEP(). All such symbols are zero-length, so there is no cost in
terms of the final binary size.
Since the symbols are no longer in COMMON, the linker will reject
symbols with the same name coming from multiple objects. We therefore
append the object name to the licence symbol, to ensure that it is
unique.
Reported-by: Marin Hannache <git@mareo.fr>
Signed-off-by: Michael Brown <mcb30@ipxe.org>
Signed-off-by: Adrian Jamróz <adrian.jamroz@gmail.com>
Modified-by: Thomas Miletich <thomas.miletich@gmail.com>
Signed-off-by: Thomas Miletich <thomas.miletich@gmail.com>
Signed-off-by: Michael Brown <mcb30@ipxe.org>
Replace the old via-rhine driver with a new version using the iPXE
API.
Includes fixes by Thomas Miletich for:
- MMIO access
- Link detection
- RX completion in RX overflow case
- Reset and EEPROM reloading
- CRC stripping
- Missing cpu_to_le32() calls
- Missing memory barriers
Signed-off-by: Adrian Jamróz <adrian.jamroz@gmail.com>
Modified-by: Thomas Miletich <thomas.miletich@gmail.com>
Tested-by: Thomas Miletich <thomas.miletich@gmail.com>
Tested-by: Robin Smidsrød <robin@smidsrod.no>
Modified-by: Michael Brown <mcb30@ipxe.org>
Tested-by: Michael Brown <mcb30@ipxe.org>
Signed-off-by: Michael Brown <mcb30@ipxe.org>
Add a facility for settings blocks to act as symbolic links to other
settings blocks, and reimplement the "netX" virtual settings block
using this facility.
The primary advantage of this approach is that unscoped settings such
as ${mac} and ${filename} will now reflect the settings obtained from
the most recently opened network device: in most cases, this will mean
the settings obtained from the most recent DHCP attempt. This should
improve conformance to the principle of least astonishment.
Signed-off-by: Michael Brown <mcb30@ipxe.org>
Allow values to be read from PCI configuration space using the syntax
${pci/<busdevfn>.<offset>.<length>}
where <busdevfn> is the bus:dev.fn address of the PCI device
(expressed as a single integer, as returned by ${net0/busloc}),
<offset> is the offset within PCI configuration space, and <length> is
the length within PCI configuration space.
Values are returned in reverse byte order, since PCI configuration
space is little-endian by definition.
Signed-off-by: Michael Brown <mcb30@ipxe.org>
Allow network device's "busloc" setting to be formatted as a PCI
bus:dev.fn address using e.g. ${net0/busloc:busdevfn}.
Signed-off-by: Michael Brown <mcb30@ipxe.org>
Provide a generic hex_decode() routine which can be shared between the
Base16 code and the "hex" and "hexhyp" settings parsers.
Signed-off-by: Michael Brown <mcb30@ipxe.org>
RFC2560 mandates that a valid OCSP response will contain exactly one
relevant certificate. However, some OCSP responders include
extraneous certificates. iPXE currently assumes that the first
certificate in the OCSP response is the relevant certificate; OCSP
checks will therefore fail if the responder includes the extraneous
certificates before the relevant certificate.
Fix by using the responder ID to identify the relevant certificate.
Reported-by: Christian Stroehmeier <stroemi@mail.uni-paderborn.de>
Signed-off-by: Michael Brown <mcb30@ipxe.org>
Extend the syntax for numerical SMBIOS settings from
smbios/<type>.<offset>.<length>
to
smbios/[<instance>.]<type>.<offset>.<length>
Where SMBIOS provides multiple structures with the same <type>, this
extended syntax allows for access to structures other than the first.
If <instance> is omitted then it will default to zero, giving access
to the first instance (and so matching existing behaviour).
The 16-bit SMBIOS handle (which is an alternative way to disambiguate
multiple instances of the same type of structure) can be accessed, if
required, using
smbios/<instance>.<type>.2.2:uint16
Signed-off-by: Michael Brown <mcb30@ipxe.org>
Create an explicit concept of "settings scope" and eliminate the magic
values used for numerical setting tags.
Signed-off-by: Michael Brown <mcb30@ipxe.org>
Devices with small transmit descriptor rings may temporarily run out
of space. Provide netdev_tx_defer() to allow drivers to defer packets
for retransmission as soon as a descriptor becomes available.
Signed-off-by: Michael Brown <mcb30@ipxe.org>
sparse does not understand -fshort-wchar. Default to using uint16_t
as a wchar_t if not explicitly specified by the compiler, to avoid
large numbers of spurious warnings from sparse.
Signed-off-by: Michael Brown <mcb30@ipxe.org>
sparse does not define __WCHAR_TYPE__ or __WINT_TYPE__. We already
define __WCHAR_TYPE__ if the compiler does not do so; do the same for
__WINT_TYPE__.
Signed-off-by: Michael Brown <mcb30@ipxe.org>
Exploit the redefinition of iPXE error codes to include a "platform
error code" to allow for meaningful conversion of EFI_STATUS values to
iPXE errors and vice versa.
Signed-off-by: Michael Brown <mcb30@ipxe.org>
The low 8 bits of an iPXE error code are currently defined as the
closest equivalent PXE error code. Generalise this scheme to
platforms other than PC-BIOS by extending this definition to "closest
equivalent platform error code". This allows for the possibility of
returning meaningful errors via EFI APIs.
Signed-off-by: Michael Brown <mcb30@ipxe.org>
Abstract out the ability to reboot the system to a separate reboot()
function (with platform-specific implementations), add an EFI
implementation, and make the existing "reboot" command available under
EFI.
Signed-off-by: Michael Brown <mcb30@ipxe.org>
When iPXE is used as a UEFI driver, the UEFI PXE base code currently
provides the TCP/IP stack, network protocols, and user interface.
This represents a substantial downgrade from the standard BIOS iPXE
user experience.
Fix by installing our own EFI_LOAD_FILE_PROTOCOL implementation which
initiates the standard iPXE boot procedure. This upgrades the UEFI
iPXE user experience to match the standard BIOS iPXE user experience.
Signed-off-by: Michael Brown <mcb30@ipxe.org>
Expose iPXE's images as a UEFI file system, allowing the booted image
to access all images downloaded by iPXE.
This functionality is complementary to the custom iPXE download
protocol. The iPXE download protocol allows a booted image to utilise
iPXE to download arbitrary URIs, but requires the booted image to
specifically support the custom iPXE download protocol. The new
functionality limits the booted image to accessing only files that
were already downloaded by iPXE (e.g. as part of a script), but can
work with any generic UEFI image (e.g. the UEFI shell). Both
protocols are provided simultaneously, and are attached to the SNP
device handle.
Signed-off-by: Michael Brown <mcb30@ipxe.org>
The PXE TFTP API allows the caller to request a particular TFTP block
size. Since mid-2008, iPXE has appended a "?blksize=xxx" parameter to
the TFTP URI constructed internally; nothing has ever parsed this
parameter. Nobody seems to have cared that this parameter has been
ignored for almost five years.
Fix by using xfer_window(), which provides a fairly natural way to
convey the block size information from the PXE TFTP API to the TFTP
protocol layer.
Signed-off-by: Michael Brown <mcb30@ipxe.org>
The iBFT has a VLAN field that should be filled in. Add the
vlan_tag() function to extract the VLAN tag of a network device.
Since VLAN support is optional, define a weak function that returns 0
when iPXE is built without VLAN support.
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
Modified-by: Michael Brown <mcb30@ipxe.org>
Signed-off-by: Michael Brown <mcb30@ipxe.org>
Allow non-data records to be split across multiple received I/O
buffers, to accommodate large certificate chains.
Reported-by: Nicola Volpini <Nicola.Volpini@kambi.com>
Tested-by: Nicola Volpini <Nicola.Volpini@kambi.com>
Signed-off-by: Michael Brown <mcb30@ipxe.org>
serial_console_init() would enable serial console support without
knowing if the serial driver succeeded or not. As a result, the
serial console would interfere with a normal keyboard on a system
lacking serial support.
Reported-by: Jan ONDREJ (SAL) <ondrejj(at)salstar.sk>
Signed-off-by: Shao Miller <sha0.miller@gmail.com>
Signed-off-by: Michael Brown <mcb30@ipxe.org>
TLS servers are not obliged to implement the RFC3546 maximum fragment
length extension, and many common servers (including OpenSSL, as used
in Apache's mod_ssl) do not do so. iPXE may therefore have to cope
with TLS records of up to 16kB. Allocations for 16kB have a
non-negligible chance of failing, causing the TLS connection to abort.
Fix by maintaining the received record as a linked list of I/O
buffers, rather than a single contiguous buffer. To reduce memory
pressure, we also decrypt in situ, and deliver the decrypted data via
xfer_deliver_iob() rather than xfer_deliver_raw().
Signed-off-by: Michael Brown <mcb30@ipxe.org>
When fetching a named setting using a name that does not explicitly
specify a type, default to using the type stored when the setting was
created, rather than always defaulting to "string". This allows the
behaviour of user-defined settings to match the behaviour of
predefined settings (which have a sensible default type).
For example:
set server:ipv4 192.168.0.1
echo ${server}
will now print "192.168.0.1", rather than trying to print out the raw
IPv4 address bytes as a string.
The downside of this change is that existing tricks for printing
special characters within scripts may require (backwards-compatible)
modification. For example, the "clear screen" sequence:
set esc:hex 1b
set cls ${esc}[2J
echo ${cls}
will now have to become
set esc:hex 1b
set cls ${esc:string}[2J # Must now explicitly specify ":string"
echo ${cls}
Signed-off-by: Michael Brown <mcb30@ipxe.org>
Almost all clients of the raw-packet interfaces (UNDI and SNP) can
handle only Ethernet link layers. Expose an Ethernet-compatible link
layer to local clients, while remaining compatible with IPoIB on the
wire. This requires manipulation of ARP (but not DHCP) packets within
the IPoIB driver.
This is ugly, but it's the only viable way to allow IPoIB devices to
be driven via the raw-packet interfaces.
Signed-off-by: Michael Brown <mcb30@ipxe.org>
Allow for allocation of memory blocks having a specified offset from a
specified physical alignment, such as being 12 bytes before a 2kB
boundary.
Signed-off-by: Michael Brown <mcb30@ipxe.org>
The script include/ipxe/efi/import.pl relies on a particular format
for the #include guard in order to detect EFI headers that are not
imported.
Signed-off-by: Michael Brown <mcb30@ipxe.org>
A window size of 256kB should be sufficient to allow for
full-bandwidth transfers over a Gigabit LAN, and for acceptable
transfer speeds over other typical links.
Signed-off-by: Michael Brown <mcb30@ipxe.org>