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* [block] Allow use of a non-default EFI SAN boot filenameMichael Brown2017-04-124-2/+11
| | | | | | | | | | | | | | | | | | | | | | | Some older operating systems (e.g. RHEL6) use a non-default filename on the root disk and rely on setting an EFI variable to point to the bootloader. This does not work when performing a SAN boot on a machine where the EFI variable is not present. Fix by allowing a non-default filename to be specified via the "sanboot --filename" option or the "san-filename" setting. For example: sanboot --filename \efi\redhat\grub.efi \ iscsi:192.168.0.1::::iqn.2010-04.org.ipxe.demo:rhel6 or option ipxe.san-filename code 188 = string; option ipxe.san-filename "\\efi\\redhat\\grub.efi"; option root-path "iscsi:192.168.0.1::::iqn.2010-04.org.ipxe.demo:rhel6"; Originally-implemented-by: Vishvananda Ishaya Abrams <vish.ishaya@oracle.com> Signed-off-by: Michael Brown <mcb30@ipxe.org>
* [efi] Add efi_sprintf() and efi_vsprintf()Michael Brown2017-04-121-0/+23
| | | | Signed-off-by: Michael Brown <mcb30@ipxe.org>
* [sfc] Add driver for Solarflare SFC8XXX adaptersMartin Habets2017-04-101-0/+2
| | | | | | Signed-off-by: Martin Habets <mhabets@solarflare.com> Modified-by: Michael Brown <mcb30@ipxe.org> Signed-off-by: Michael Brown <mcb30@ipxe.org>
* [libc] Add stdbool.h standard headerMichael Brown2017-04-102-1/+11
| | | | Signed-off-by: Michael Brown <mcb30@ipxe.org>
* [mucurses] Fix erroneous __nonnull attributeMichael Brown2017-03-291-1/+2
| | | | Signed-off-by: Michael Brown <mcb30@ipxe.org>
* [block] Describe all SAN devices via ACPI tablesMichael Brown2017-03-286-31/+131
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Describe all SAN devices via ACPI tables such as the iBFT. For tables that can describe only a single device (i.e. the aBFT and sBFT), one table is installed per device. For multi-device tables (i.e. the iBFT), all devices are described in a single table. An underlying SAN device connection may be closed at the time that we need to construct an ACPI table. We therefore introduce the concept of an "ACPI descriptor" which enables the SAN boot code to maintain an opaque pointer to the underlying object, and an "ACPI model" which can build tables from a list of such descriptors. This separates the lifecycles of ACPI descriptions from the lifecycles of the block device interfaces, and allows for construction of the ACPI tables even if the block device interface has been closed. For a multipath SAN device, iPXE will wait until sufficient information is available to describe all devices but will not wait for all paths to connect successfully. For example: with a multipath iSCSI boot iPXE will wait until at least one path has become available and name resolution has completed on all other paths. We do this since the iBFT has to include IP addresses rather than DNS names. We will commence booting without waiting for the inactive paths to either become available or close; this avoids unnecessary boot delays. Note that the Linux kernel will refuse to accept an iBFT with more than two NIC or target structures. We therefore describe only the NICs that are actually required in order to reach the described targets. Any iBFT with at most two targets is therefore guaranteed to describe at most two NICs. Signed-off-by: Michael Brown <mcb30@ipxe.org>
* [block] Allow SAN retry count to be reconfiguredMichael Brown2017-03-272-0/+9
| | | | | | | | | | | | Allow the SAN retry count to be configured via the ${san-retry} setting, defaulting to the current value of 10 retries if not specified. Note that setting a retry count of zero is inadvisable, since iSCSI targets in particular will often report spurious errors such as "power on occurred" for the first few commands. Signed-off-by: Michael Brown <mcb30@ipxe.org>
* [time] Add sleep_fixed() function to sleep without checking for Ctrl-CMichael Brown2017-03-271-0/+1
| | | | Signed-off-by: Michael Brown <mcb30@ipxe.org>
* [block] Add basic multipath supportMichael Brown2017-03-262-12/+37
| | | | | | | | | | | Add basic support for multipath block devices. The "sanboot" and "sanhook" commands now accept a list of SAN URIs. We open all URIs concurrently. The first connection to become available for issuing block device commands is marked as the active path and used for all subsequent commands; all other connections are then closed. Whenever the active path fails, we reopen all URIs and repeat the process. Signed-off-by: Michael Brown <mcb30@ipxe.org>
* [block] Add dummy SAN deviceMichael Brown2017-03-263-0/+20
| | | | | | | | | Add a dummy SAN device which allows the "sanhook" command to be tested even when no SAN booting capability is present on the platform. This allows substantial portions of the SAN boot code to be run in Linux under Valgrind. Signed-off-by: Michael Brown <mcb30@ipxe.org>
* [iobuf] Increase minimum I/O buffer size to 128 bytesMichael Brown2017-03-231-1/+1
| | | | | | | | | | | | | | | The eIPoIB translation layer needs to translate outbound ARP packets from Ethernet to IPoIB. A 64-byte buffer (starting with the Ethernet header) does not provide enough tailroom to expand to hold the two 20-byte IPoIB MAC addresses. The result is that an UNDI API user will be unable to send ARP packets. We could potentially shuffle the packet contents to reuse the space occupied by the stripped Ethernet link-layer header, but this would add complexity. Instead, fix by increasing the minimum allocation size to 128 bytes. Signed-off-by: Michael Brown <mcb30@ipxe.org>
* [malloc] Track maximum heap usageMichael Brown2017-03-221-0/+2
| | | | | | | Track the current and maximum heap usage, and display the maximum during shutdown when DEBUG=malloc is enabled. Signed-off-by: Michael Brown <mcb30@ipxe.org>
* [infiniband] Return status code from ib_create_mi()Michael Brown2017-03-221-2/+3
| | | | Signed-off-by: Michael Brown <mcb30@ipxe.org>
* [infiniband] Return status code from ib_create_cq() and ib_create_qp()Michael Brown2017-03-221-8/+10
| | | | | | | | | | | | Any underlying errors arising during ib_create_cq() or ib_create_qp() are lost since the functions simply return NULL on error. This makes debugging harder, since a debug-enabled build is required to discover the root cause of the error. Fix by returning a status code from these functions, thereby allowing any underlying errors to be propagated. Signed-off-by: Michael Brown <mcb30@ipxe.org>
* [build] Avoid confusing sparse in single-argument DBG() macrosMichael Brown2017-03-221-2/+2
| | | | | | | | | | | | | For visual consistency with surrounding lines, the definitions of DBG_MORE(), DBG_PAUSE(), etc include an unnecessary ##__VA_ARGS__ argument which is always elided. This confuses sparse, which complains about DBG_MORE_IF() being called with more than one argument. Work around this problem by adding an unused variable argument list to the single-argument macros DBG_MORE_IF() and DBG_PAUSE_IF(). Signed-off-by: Michael Brown <mcb30@ipxe.org>
* [dhcp] Allow vendor class to be changed in DHCP requestsMichael Brown2017-03-201-0/+2
| | | | | | | Allow the DHCPv4 vendor class to be specified via the "vendor-class" setting. Signed-off-by: Michael Brown <mcb30@ipxe.org>
* [efi] Add EFI_ACPI_TABLE_PROTOCOL header and GUID definitionMichael Brown2017-03-102-0/+130
| | | | Signed-off-by: Michael Brown <mcb30@ipxe.org>
* [efi] Update to current EDK2 headersMichael Brown2017-03-1014-44/+1233
| | | | Signed-off-by: Michael Brown <mcb30@ipxe.org>
* [build] Provide common ARRAY_SIZE() definitionMichael Brown2017-03-101-0/+7
| | | | | | | Several files define the ARRAY_SIZE() macro as used in Linux. Provide a common definition for this in include/compiler.h. Signed-off-by: Michael Brown <mcb30@ipxe.org>
* [block] Centralise "san-drive" settingMichael Brown2017-03-073-21/+1Star
| | | | | | | | | | | | The concept of the SAN drive number is meaningful only in a BIOS environment, where it represents the INT13 drive number (0x80 for the first hard disk). We retain this concept in a UEFI environment to allow for a simple way for iPXE commands to refer to SAN drives. Centralise the concept of the default drive number, since it is shared between all supported environments. Signed-off-by: Michael Brown <mcb30@ipxe.org>
* [block] Centralise SAN device abstractionMichael Brown2017-03-072-1/+124
| | | | | | | Create a central SAN device abstraction to be shared between BIOS and UEFI. Signed-off-by: Michael Brown <mcb30@ipxe.org>
* [block] Remove spurious commentsMichael Brown2017-03-071-7/+0Star
| | | | Signed-off-by: Michael Brown <mcb30@ipxe.org>
* [interface] Provide the ability to shut down multiple interfacesMichael Brown2017-02-021-0/+5
| | | | | | | | | | | | | | | Shutting down (and optionally restarting) multiple interfaces is fraught with problems if there are loops in the interface connectivity (e.g. the HTTP content-decoded and transfer-decoded interfaces, which will generally loop back to each other). Various workarounds currently exist across the codebase, generally involving preceding calls to intf_nullify() to avoid problems due to known loops. Provide intfs_shutdown() and intfs_restart() to allow all of an object's interfaces to be shut down (or restarted) in a single call, without having to worry about potential external loops. Signed-off-by: Michael Brown <mcb30@ipxe.org>
* [time] Allow timer to be selected at runtimeMichael Brown2017-01-264-115/+53Star
| | | | | | | | | | | | | | | | | | | | | | Allow the active timer (providing udelay() and currticks()) to be selected at runtime based on probing during the INIT_EARLY stage of initialisation. TICKS_PER_SEC is now a fixed compile-time constant for all builds, and is independent of the underlying clock tick rate. We choose the value 1024 to allow multiplications and divisions on seconds to be converted to bit shifts. TICKS_PER_MS is defined as 1, allowing multiplications and divisions on milliseconds to be omitted entirely. The 2% inaccuracy in this definition is negligible when using the standard BIOS timer (running at around 18.2Hz). TIMER_RDTSC now checks for a constant TSC before claiming to be a usable timer. (This timer can be tested in KVM via the command-line option "-cpu host,+invtsc".) Signed-off-by: Michael Brown <mcb30@ipxe.org>
* [netdevice] Limit MTU by hardware maximum frame lengthMichael Brown2017-01-251-1/+8
| | | | | | | | | | | | | | | | Separate out the concept of "hardware maximum supported frame length" and "configured link MTU", and limit the latter according to the former. In networks where the DHCP-supplied link MTU is inconsistent with the hardware or driver capabilities (e.g. a network using jumbo frames), this will result in iPXE advertising a TCP MSS consistent with a size that can actually be received. Note that the term "MTU" is typically used to refer to the maximum length excluding the link-layer headers; we adopt this usage. Signed-off-by: Michael Brown <mcb30@ipxe.org>
* [netdevice] Allow MTU to be changed at runtimeMichael Brown2017-01-231-0/+3
| | | | | | | | | | | | Provide a settings applicator to modify netdev->max_pkt_len in response to changes to the "mtu" setting (DHCP option 26). Note that as with MAC address changes, drivers are permitted to completely ignore any changes in the MTU value. The net result will be that iPXE effectively uses the smaller of either the hardware default MTU or the software configured MTU. Signed-off-by: Michael Brown <mcb30@ipxe.org>
* [af_packet] Add new AF_PACKET driver for LinuxDavid Decotigny2017-01-222-0/+8
| | | | | | | | | | | | This code largely inspired by tap.c. Allows for testing iPXE on real NICs from within Linux. For example: make bin-x86_64-linux/af_packet.linux valgrind ./bin-x86_64-linux/af_packet.linux --net af_packet,if=eth3 Tested as x86_64 and i386 binary. Signed-off-by: Michael Brown <mcb30@ipxe.org>
* [build] Return const char * from uuid_ntoa()David Decotigny2017-01-221-1/+1
| | | | Signed-off-by: Michael Brown <mcb30@ipxe.org>
* [virtio] Remove queue size limit in legacy virtioLadi Prosek2017-01-222-4/+4
| | | | | | | | | | | | | | | | Virtio 0.9 implementation was limited to the maximum virtqueue size of MAX_QUEUE_NUM and the virtio-net driver would fail to initialize on hosts exceeding this limit. This commit lifts the restriction by allocating the queue memory based on the actual queue size instead of using a fixed maximum. Note that virtio 1.0 still uses the MAX_QUEUE_NUM constant to cap the size (unfortunately this functionality is not available in virtio 0.9). Signed-off-by: Ladi Prosek <lprosek@redhat.com> Acked-by: Michael S. Tsirkin <mst@redhat.com> Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com> Signed-off-by: Michael Brown <mcb30@ipxe.org>
* [virtio] Cap queue size to MAX_QUEUE_NUMLadi Prosek2017-01-221-3/+3
| | | | | | | | | | | | | | | vpm_find_vqs incorrectly accepted the host provided queue size with no regard to iPXE's internal limitations. Virtio 1.0 makes it possible for the driver to override the queue size to reduce memory requirements and iPXE is a great use case for this feature. Also removing the extra vq->vring.num assignment which is already handled in vring_init. Signed-off-by: Ladi Prosek <lprosek@redhat.com> Acked-by: Michael S. Tsirkin <mst@redhat.com> Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com> Signed-off-by: Michael Brown <mcb30@ipxe.org>
* [efi] Work around temporal anomaly encountered during ExitBootServices()Michael Brown2016-12-071-0/+1
| | | | | | | | | | | | | | | | | | | | | | | | EFI provides no clean way for device drivers to shut down in preparation for handover to a booted operating system. The platform firmware simply doesn't bother to call the drivers' Stop() methods. Instead, drivers must register an EVT_SIGNAL_EXIT_BOOT_SERVICES event to be signalled when ExitBootServices() is called, and clean up without any reference to the EFI driver model. Unfortunately, all timers silently stop working when ExitBootServices() is called. Even more unfortunately, and for no discernible reason, this happens before any EVT_SIGNAL_EXIT_BOOT_SERVICES events are signalled. The net effect of this entertaining design choice is that any timeout loops on the shutdown path (e.g. for gracefully closing outstanding TCP connections) may wait indefinitely. There is no way to report failure from currticks(), since the API lazily assumes that the host system continues to travel through time in the usual direction. Work around EFI's violation of this assumption by falling back to a simple free-running monotonic counter. Debugged-by: Maor Dickman <maord@mellanox.com> Signed-off-by: Michael Brown <mcb30@ipxe.org>
* [efi] Add basic EFI SAN booting capabilityMichael Brown2016-11-173-0/+29
| | | | Signed-off-by: Michael Brown <mcb30@ipxe.org>
* [interface] Provide intf_reinit() to reinitialise nullified interfacesMichael Brown2016-11-161-0/+18
| | | | | | | Provide an abstraction intf_reinit() to restore the descriptor of a previously nullified interface. Signed-off-by: Michael Brown <mcb30@ipxe.org>
* [efi] Add EFI_BLOCK_IO2_PROTOCOL header and GUID definitionMichael Brown2016-10-172-0/+209
| | | | Signed-off-by: Michael Brown <mcb30@ipxe.org>
* [efi] Update to current EDK2 headersMichael Brown2016-10-1615-46/+401
| | | | Signed-off-by: Michael Brown <mcb30@ipxe.org>
* [efi] Mark AppleNetBoot.h as a native iPXE headerMichael Brown2016-10-161-3/+3
| | | | | | | | | AppleNetBoot.h is not taken from the EDK2 codebase and so cannot be imported using include/ipxe/efi/import.pl. Mark as a native iPXE header (by changing the include guard) to avoid breaking the import process. Signed-off-by: Michael Brown <mcb30@ipxe.org>
* [cmdline] Add certificate management commandsMichael Brown2016-08-311-0/+1
| | | | Signed-off-by: Michael Brown <mcb30@ipxe.org>
* [crypto] Add certstat() to display basic certificate informationMichael Brown2016-08-311-0/+16
| | | | Signed-off-by: Michael Brown <mcb30@ipxe.org>
* [crypto] Allow certificates to be marked as having been added explicitlyMichael Brown2016-08-311-0/+4
| | | | | | | | Allow certificates to be marked as having been added explicitly at run time. Such certificates will not be discarded via the certificate store cache discarder. Signed-off-by: Michael Brown <mcb30@ipxe.org>
* [crypto] Expose certstore_del() to explicitly remove stored certificatesMichael Brown2016-08-311-0/+1
| | | | Signed-off-by: Michael Brown <mcb30@ipxe.org>
* [list] Add list_next_entry() and list_prev_entry()Michael Brown2016-08-311-0/+28
| | | | Signed-off-by: Michael Brown <mcb30@ipxe.org>
* [crypto] Generalise X.509 "valid" field to a "flags" fieldMichael Brown2016-08-251-3/+18
| | | | Signed-off-by: Michael Brown <mcb30@ipxe.org>
* [crypto] Add image_x509() to extract X.509 certificates from imageMichael Brown2016-08-251-0/+4
| | | | Signed-off-by: Michael Brown <mcb30@ipxe.org>
* [pixbuf] Enable PNG format by defaultMichael Brown2016-07-291-0/+1
| | | | | | | Enable IMAGE_PNG (but not IMAGE_PNM) by default, and drag in the relevant objects only when image_pixbuf() is present in the binary. Signed-off-by: Michael Brown <mcb30@ipxe.org>
* [crypto] Add PEM image formatMichael Brown2016-07-292-0/+23
| | | | | | | | | | | Add PEM-encoded ASN.1 as an image format. We accept as PEM any image containing a line starting with a "-----BEGIN" boundary marker. We allow for PEM files containing multiple ASN.1 objects, such as a certificate chain produced by concatenating individual certificate files. Signed-off-by: Michael Brown <mcb30@ipxe.org>
* [crypto] Add DER image formatMichael Brown2016-07-292-0/+17
| | | | | | | | Add DER-encoded ASN.1 as an image format. There is no fixed signature for DER files. We treat an image as DER if it comprises a single valid SEQUENCE object covering the entire length of the image. Signed-off-by: Michael Brown <mcb30@ipxe.org>
* [image] Add image_asn1() to extract ASN.1 objects from imageMichael Brown2016-07-291-0/+16
| | | | Signed-off-by: Michael Brown <mcb30@ipxe.org>
* [crypto] Allow for parsing of partial ASN.1 cursorsMichael Brown2016-07-281-0/+2
| | | | | | | | | Allow code to create a partial ASN.1 cursor containing only the type and length bytes, so that asn1_start() may be used to determine the length of a large ASN.1 blob without first allocating memory to hold the entire blob. Signed-off-by: Michael Brown <mcb30@ipxe.org>
* [crypto] Remove obsolete extern declaration for asn1_invalidate_cursor()Michael Brown2016-07-281-1/+0Star
| | | | Signed-off-by: Michael Brown <mcb30@ipxe.org>
* [hyperv] Use instance UUID in device nameMichael Brown2016-07-261-1/+1
| | | | | | | | | | The Windows drivers for VMBus devices are enumerated using the instance UUID rather than the channel number. Include the instance UUID within the iPXE device name to allow an iPXE network device to be more easily associated with the corresponding Windows network device when debugging. Signed-off-by: Michael Brown <mcb30@ipxe.org>
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