[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>
[malloc] Allow Valgrind to be used when all assertions are enabled
The free-memory-block traversal code triggers multiple warnings from
Valgrind when assertions are enabled, since the list consistency
checks performed by list_check() end up accessing areas that have been
marked as inaccessible.
Fix by ensuring that any memory areas that will be accessed by
list_check() are marked as defined when necessary.
Signed-off-by: Michael Brown <mcb30@ipxe.org>
[realtek] Support RTL8139 cards within generic Realtek driver
RTL8139C+ cards use essentially the same datapath as RTL8169, which is
zerocopy and 64-bit capable. Older RTL8139 cards use a single receive
ring buffer rather than a descriptor ring, but still share substantial
amounts of functionality with RTL8169.
Include support for RTL8139 cards within the generic Realtek driver,
since there is no way to differentiate between RTL8139 and RTL8139C+
cards based on the PCI IDs alone.
Many thanks to all the people who worked on the rtl8139 driver over
the years.
Signed-off-by: Michael Brown <mcb30@ipxe.org>
[crypto] Do not allow build-time cryptography settings to be overridden
If a root certificate has been explicitly specified at build time
using TRUST=/path/to/cert then do not allow this to be overridden even
from a trustworthy settings source (such as VMware GuestInfo).
Similarly, if a client certificate (and private key) has been
explicitly specified at build time, then do not allow it to be
overridden at runtime.
Signed-off-by: Michael Brown <mcb30@ipxe.org>
[build] Use $(xxx_DEPS) for additional dependency information
Some objects (embedded.o, rootcert.o, and clientcert.o) define
additional dependencies on external files, using syntax such as:
$(BIN)/clientcert.o : $(CERT_LIST)
This dependency can be missed when using debug builds. For example,
if DEBUG=clientcert is used, then the relevant object is
$(BIN)/clientcert.dbg1.o rather than $(BIN)/clientcert.o.
Fix by adding dependencies to $(clientcert_DEPS) instead:
clientcert_DEPS += $(CERT_LIST)
Signed-off-by: Michael Brown <mcb30@ipxe.org>
[util] Remove obsolete Makefile rule for util/prototester.c
util/prototester.c was removed in commit a6d1815 ("Obsolete for some
time now") back in 2006.
Signed-off-by: Marin Hannache <mareo@mareo.fr>
Signed-off-by: Michael Brown <mcb30@ipxe.org>
The WinCE, a.out and FreeBSD loaders are designed to be #included by
core/loader.c, which no longer exists. These old loaders are not
usable anymore and cause compilation failures when enabled in
config/general.h.
Signed-off-by: Marin Hannache <mareo@mareo.fr>
Signed-off-by: Michael Brown <mcb30@ipxe.org>
[http] Avoid using stack-allocated memory in http_step()
http_step() allocates a potentially large block of storage (since the
URI can be arbitrarily long), and can be invoked as part of an already
deep call stack via xfer_window_changed().
Signed-off-by: Michael Brown <mcb30@ipxe.org>
[xfer] Avoid using stack-allocated memory in xfer_printf()
xfer_printf() occasionally has to deal with strings that are
potentially long, such as HTTP URIs with multiple query parameters.
Allocating these on the stack can lead to stack overruns and memory
corruption.
Fix by using vasprintf() instead of a stack allocation.
Signed-off-by: Michael Brown <mcb30@ipxe.org>
The link state is currently set at probe time, and updated only when
the device is polled. This results in the user seeing a misleading
stale "Link: down" message, if autonegotiation did not complete within
the short timespan of the probe routine.
Fix by updating the link state when the device is opened, so that the
message that ends up being displayed to the user reflects the real
link state at device open time.
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>
There is no explicit SNP API call to determine link state; the SNP
interface user may check the MediaPresent field within the mode data
at any time.
Update the MediaPresent field whenever the link state changes.
Reported-by: Michael R Turner <mikeyt@us.ibm.com>
Signed-off-by: Michael Brown <mcb30@ipxe.org>
[crypto] Allow trusted root certificate to be changed without a rebuild
Changing the trusted root certificate currently requires a rebuild of
the iPXE binary, which may be inconvenient or impractical.
Allow the list of trusted root certificate fingerprints to be
overridden using the "trust" setting, but only at the point of iPXE
initialisation. This prevents untrusted sources of settings
(e.g. DHCP) from subverting the chain of trust, while allowing
trustworthy sources to change the trusted root certificate without
requiring a rebuild.
The basic idea is that if you are able to manipulate a trustworthy
source of settings (e.g. VMware GuestInfo or non-volatile stored
options), then you would be able to replace the iPXE binary anyway,
and so no security is lost by allowing such sources to override the
list of trusted root certificates.
Signed-off-by: Michael Brown <mcb30@ipxe.org>
Solaris assumes that there is enough space above the Multiboot modules
to use as a decompression and scratch area. This assumption is
invalid when using iPXE, which places the Multiboot modules near the
top of (32-bit) memory.
Fix by copying the modules to an area of memory immediately following
the loaded kernel.
Debugged-by: Michael Brown <mcb30@ipxe.org>
Debugged-by: Scott McWhirter <scottm@joyent.com>
Tested-by: Robin Smidsrød <robin@smidsrod.no>
Signed-off-by: Michael Brown <mcb30@ipxe.org>
iPXE provides no support for manually configuring the link speed.
Provide a generic routine which should be able to reset any MII/GMII
PHY and enable autonegotiation.
Prototyped-by: Thomas Miletich <thomas.miletich@gmail.com>
Signed-off-by: Michael Brown <mcb30@ipxe.org>
[util] Add utility to generate list of supported network cards
niclist.pl recursively scans specified source folders and builds a
list of supported NICs by looking for ISA_ROM and PCI_ROM lines and
outputs the list in text, CSV, JSON, HTML or DokuWiki format. Sorting
and column selection is possible.
The pci-utils pci.ids file is fetched from SourceForge once a day to
also output the "official" vendor/device names associated with the PCI
device.
Signed-off-by: Robin Smidsrød <robin@smidsrod.no>
Signed-off-by: Michael Brown <mcb30@ipxe.org>
[vmware] Allow settings to be specified in the VMware .vmx file
Allow iPXE settings to be specified in the .vmx file via the VMware
GuestInfo mechanism. For example:
guestinfo.ipxe.filename = "http://boot.ipxe.org/demo/boot.php"
guestinfo.ipxe.dns = "192.168.0.1"
guestinfo.ipxe.net0.ip = "192.168.0.15"
guestinfo.ipxe.net0.netmask = "255.255.255.0"
guestinfo.ipxe.net0.gateway = "192.168.0.1"
Signed-off-by: Michael Brown <mcb30@ipxe.org>
Allow TFTP to be configured out by moving the next-server setting
definition (which is used by autoboot.c) from tftp.c to settings.c.
Signed-off-by: Michael Brown <mcb30@ipxe.org>
[settings] Split fetching and storing out of setting type handlers
Refactor setting type handlers to parse and format values, rather than
storing and fetching formatted values.
Signed-off-by: Michael Brown <mcb30@ipxe.org>
[multiboot] Include full image URI in command line
Solaris kernels seem to rely on having the full kernel path present in
the multiboot command line; if only the kernel name is present then
the boot fails with the error message
krtld: failed to open 'unix'
Debugged-by: Michael Brown <mcb30@ipxe.org>
Debugged-by: Scott McWhirter <scottm@joyent.com>
Signed-off-by: Michael Brown <mcb30@ipxe.org>
DOWNLOAD_PROTO_TFTM is now useless as tftm support has been merged
into tftp.c. DOWNLOAD_PROTO_TFTP should be used instead.
Signed-off-by: Michael Brown <mcb30@ipxe.org>
Add support for 82579-based chips such as those found on Sandy Bridge
motherboards. Based on d3738bb820 in
Linux.
Signed-off-by: Daniel Hokka Zakrisson <daniel@hozac.com>
Signed-off-by: Michael Brown <mcb30@ipxe.org>
[tls] Fix wrong memset in function tls_clear_cipher
sizeof(cipherspec) is obviously wrong in this context, because it will
only zero the first 4 or 8 bytes (cipherspec is a pointer).
This problem was reported by cppcheck.
Signed-off-by: Stefan Weil <sw@weilnetz.de>
Signed-off-by: Michael Brown <mcb30@ipxe.org>
Michael Brown