[settings] Explicitly separate the concept of a completed fetched setting
The fetch_setting() family of functions may currently modify the
definition of the specified setting (e.g. to add missing type
information). Clean up this interface by requiring callers to provide
an explicit buffer to contain the completed definition of the fetched
setting, if required.
Signed-off-by: Michael Brown <mcb30@ipxe.org>
[ipv6] Separate the concepts of prefix and address creation
Allow for IPv6 routing table entries to be created for an on-link
prefix where a local address has not yet been assigned to the network
device.
Signed-off-by: Michael Brown <mcb30@ipxe.org>
Commit 5e1fa5c ("[parseopt] Add parse_timeout()") introduced a
regression causing the shell banner timeout value (calculated in
milliseconds) to be treated as a timer tick count, resulting in a
timeout of approximately two minutes rather than the intended two
seconds.
Reported-by: Christian Hesse <list@eworm.de>
Signed-off-by: Michael Brown <mcb30@ipxe.org>
Parsing a timeout value (specified in milliseconds) into an internal
timeout value measured in timer ticks is a common operation. Provide
a parse_timeout() value to carry out this conversion automatically.
Signed-off-by: Michael Brown <mcb30@ipxe.org>
[pxe] Always retrieve cached DHCPACK and apply to relevant network device
When chainloading, always retrieve the cached DHCPACK packet from the
underlying PXE stack, and apply it as the original contents of the
"net<X>.dhcp" settings block. This allows cached DHCP settings to be
used for any chainloaded iPXE binary (not just undionly.kkpxe).
This change eliminates the undocumented "use-cached" setting. Issuing
the "dhcp" command will now always result in a fresh DHCP request.
Signed-off-by: Michael Brown <mcb30@ipxe.org>
Replace the existing partially-implemented IPv6 stack with a fresh
implementation.
This implementation is not yet complete. The IPv6 transmit and
receive datapaths are functional (including fragment reassembly and
parsing of arbitrary extension headers). NDP neighbour solicitations
and advertisements are supported. ICMPv6 echo is supported.
At present, only link-local addresses may be used, and there is no way
to specify an IPv6 address as part of a URI (either directly or via
a DNS lookup).
Signed-off-by: Michael Brown <mcb30@ipxe.org>
[lotest] Include sequence number within loopback test packets
Include a sequence number as the first four bytes of the loopback test
packet payload. When a content mismatch occurs, this gives some
information about the source of the mismatched packet.
Signed-off-by: Michael Brown <mcb30@ipxe.org>
[autoboot] Use next-server from filename's settings block
Locate the settings block containing the filename, and search only
that settings block for the next-server address. This avoids problems
caused by misconfigured DHCP servers which provide a next-server
address (often defaulting to the DHCP server's own IP address) even
when not providing a filename.
Originally-implemented-by: Alex Williamson <alex.williamson@redhat.com>
Signed-off-by: Michael Brown <mcb30@ipxe.org>
[ipoib] Expose Ethernet-compatible eIPoIB link-layer addresses and headers
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>
Simplify the process of booting by ensuring that old images are not
left registered after an unsuccessful autoboot attempt.
Signed-off-by: Michael Brown <mcb30@ipxe.org>
[crypto] Allow certificate chains to be long-lived data structures
At present, certificate chain validation is treated as an
instantaneous process that can be carried out using only data that is
already in memory. This model does not allow for validation to
include non-instantaneous steps, such as downloading a cross-signing
certificate, or determining certificate revocation status via OCSP.
Redesign the internal representation of certificate chains to allow
chains to outlive the scope of the original source of certificates
(such as a TLS Certificate record).
Allow for certificates to be cached, so that each certificate needs to
be validated only once.
Signed-off-by: Michael Brown <mcb30@ipxe.org>
[netdevice] Allow network device to update link state before checking
If the network interface has only just been opened (e.g. by the "dhcp"
command) then we should allow at least one opportunity for the card to
update the link state before testing it, to avoid false positives.
Signed-off-by: Michael Brown <mcb30@ipxe.org>
[image] Simplify image management commands and internal API
Remove the name, cmdline, and action parameters from imgdownload() and
imgdownload_string(). These functions now simply download and return
an image.
Add the function imgacquire(), which will interpret a "name or URI
string" parameter and return either an existing image or a newly
downloaded image.
Use imgacquire() to merge similar image-management commands that
currently differ only by whether they take the name of an existing
image or the URI of a new image to download. For example, "chain" and
"imgexec" can now be merged.
Extend imgstat and imgfree commands to take an optional list of
images.
Remove the arbitrary restriction on the length of image names.
Signed-off-by: Michael Brown <mcb30@ipxe.org>
Trusted images may always be executed. Untrusted images may be
executed only if the current image trust requirement allows untrusted
images.
Images can be marked as trusted using image_trust(), and marked as
untrusted using image_untrust().
The current image trust requirement can be changed using
image_set_trust(). It is possible to make the change permanent, in
which case any future attempts to change the image trust requirement
will fail.
Signed-off-by: Michael Brown <mcb30@ipxe.org>
It can sometimes be awkward to prevent additional packets from being
received during a loopback test. Allow such additional packets to be
present without terminating the test.
Signed-off-by: Michael Brown <mcb30@ipxe.org>
[image] Eliminate the register_and_xxx_image() functions
All users of imgdownload() require registration of the image, so make
registration an integral part of imgdownload() itself and simplify the
"action" parameter to be one of image_select(), image_exec() et al.
Signed-off-by: Michael Brown <mcb30@ipxe.org>
[netdevice] Allow link layer to report broadcast/multicast packets via pull()
Allow the link layer to directly report whether or not a packet is
multicast or broadcast at the time of calling pull(), rather than
relying on heuristics to determine this at a later stage.
Signed-off-by: Michael Brown <mcb30@ipxe.org>
Expose the multiple-SAN-drive capability of the iPXE core via the iPXE
command line by adding commands to hook and unhook additional drives.
Signed-off-by: Michael Brown <mcb30@ipxe.org>
Improve the appearance of the "config" user interface by ensuring that
settings appear in some kind of logical order.
Signed-off-by: Michael Brown <mcb30@ipxe.org>
[image] Move the register_and_{select|boot}_image() functions to imgmgmt.c
These functions are used only as the "action" parameters to
imgdownload() or imgfetch(), and so belong in imgmgmt.c rather than
image.c
Signed-off-by: Michael Brown <mcb30@ipxe.org>
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.
Signed-off-by: Michael Brown <mcb30@ipxe.org>
[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.
Signed-off-by: Michael Brown <mcb30@ipxe.org>
Michael Brown