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* [build] Exclude selected directories from Secure Boot buildsMichael Brown2017-09-182-15/+34
| | | | | | | | | | | | | | | | | | When submitting binaries for UEFI Secure Boot signing, certain known-dubious subsystems (such as 802.11 and NFS) must be excluded from the build. Mark the directories containing these subsystems as insecure, and allow the build target to include an explicit "security flag" (a literal "-sb" appended to the build platform) to exclude these source directories from the build process. For example: make bin-x86_64-efi-sb/ipxe.efi will build iPXE with all code from the 802.11 and NFS subsystems excluded from the build. Signed-off-by: Michael Brown <mcb30@ipxe.org>
* [efi] Continue to connect remaining handles after connection errorsMichael Brown2017-09-131-3/+5
| | | | | | | | | | | | Some UEFI BIOSes will deliberately break the implementation of ConnectController() to return errors for devices that have been "disabled" via the BIOS setup screen. (As an added bonus, such BIOSes may return garbage EFI_STATUS values such as 0xff.) Work around these broken UEFI BIOSes by ignoring failures and continuing to attempt to connect any remaining handles. Signed-off-by: Michael Brown <mcb30@ipxe.org>
* [exanic] Add PCI device ID for another X40 variantPeter von Konigsmark2017-09-071-0/+1
| | | | | Modified-by: Michael Brown <mcb30@ipxe.org> Signed-off-by: Michael Brown <mcb30@ipxe.org>
* [exanic] Power up optical PHYs (if present)Peter von Konigsmark2017-09-072-0/+7
| | | | | Modified-by: Michael Brown <mcb30@ipxe.org> Signed-off-by: Michael Brown <mcb30@ipxe.org>
* [dns] Ensure DNS names are NUL-terminated when used as diagnostic stringsMichael Brown2017-09-071-3/+9
| | | | Signed-off-by: Michael Brown <mcb30@ipxe.org>
* [efi] Match behaviour of SnpDxe for truncated received packetsMichael Brown2017-09-071-13/+9Star
| | | | | | | | | | | | | The UEFI specification does not state whether or not a return value of EFI_BUFFER_TOO_SMALL from the SNP Receive() method should follow the usual EFI API behaviour of allowing the caller to retry the request with an increased buffer size. Examination of the SnpDxe driver in EDK2 suggests that Receive() will just return the truncated packet (complete with any requested link-layer header fields), so match this behaviour. Signed-off-by: Michael Brown <mcb30@ipxe.org>
* [efi] Check buffer length for packets retrieved via our SNP protocolMichael Brown2017-09-071-3/+14
| | | | | | | | | | | | We do not currently check the length of the caller's buffer for received packets. This creates a potential buffer overrun when iPXE is being used via the SNP or UNDI protocols. Fix by checking the buffer length and correctly returning the required length and an EFI_BUFFER_TOO_SMALL error. Reported-by: Paul McMillan <paul.mcmillan@oracle.com> Signed-off-by: Michael Brown <mcb30@ipxe.org>
* [dns] Report current DNS query as job progress status messageMichael Brown2017-09-061-0/+18
| | | | Signed-off-by: Michael Brown <mcb30@ipxe.org>
* [resolv] Use pass-through interfaces for name resolution multiplexerMichael Brown2017-09-061-15/+24
| | | | Signed-off-by: Michael Brown <mcb30@ipxe.org>
* [netdevice] Add "hwaddr" settingMichael Brown2017-09-061-5/+30
| | | | | | | | Expose the underlying hardware address as a setting. For IPoIB devices, this provides scripts with access to the Infiniband GUID. Requested-by: Allen, Benjamin S. <bsallen@alcf.anl.gov> Signed-off-by: Michael Brown <mcb30@ipxe.org>
* [peerdist] Gather and report peer statistics during downloadMichael Brown2017-09-065-0/+114
| | | | | | | | | Record and report the number of peers (calculated as the maximum number of peers discovered for a block's segment at the time that the block download is complete), and the percentage of blocks retrieved from peers rather than from the origin server. Signed-off-by: Michael Brown <mcb30@ipxe.org>
* [monojob] Display job status message, if presentMichael Brown2017-09-061-9/+25
| | | | Signed-off-by: Michael Brown <mcb30@ipxe.org>
* [downloader] Allow underlying downloads to provide detailed job progressMichael Brown2017-09-061-2/+9
| | | | Signed-off-by: Michael Brown <mcb30@ipxe.org>
* [job] Allow jobs to report an arbitrary status messageMichael Brown2017-09-061-0/+2
| | | | Signed-off-by: Michael Brown <mcb30@ipxe.org>
* [monojob] Check for job progress only once per timer tickMichael Brown2017-09-061-13/+15
| | | | | | | | Checking for job progress is essentially a user interface activity, and can safely be performed only once per timer tick (as is already done with checking for keypresses). Signed-off-by: Michael Brown <mcb30@ipxe.org>
* [netdevice] Cancel all pending transmissions on any transmit errorMichael Brown2017-09-051-3/+16
| | | | | | | | | | | | | | | | | | | | | Some external code (such as the UEFI UNDI driver for the Realtek USB NIC on a Microsoft Surface Book) will block during transmission attempts and can take several seconds to report a transmit error. If there is a large queue of pending transmissions, then the accumulated time from a series of such failures can easily exceed the EFI watchdog timeout, resulting in what appears to be a system lockup followed by a reboot. Work around this problem by immediately cancelling any pending transmissions as soon as any transmit error occurs. The only expected transmit error under normal operation is ENOBUFS arising when the hardware transmit queue is full. By definition, this can happen only for drivers that do not utilise deferred transmissions, and so this new behaviour will not affect these drivers. Signed-off-by: Michael Brown <mcb30@ipxe.org>
* [efi] Raise TPL when calling UNDI entry pointMichael Brown2017-09-051-0/+8
| | | | | | | | | The SnpDxe driver raises the task priority level to TPL_CALLBACK when calling the UNDI entry point. This does not appear to be a documented requirement, but we should probably match the behaviour of SnpDxe to minimise surprises to third party code. Signed-off-by: Michael Brown <mcb30@ipxe.org>
* [linux] Impose receive quota on tap driverMichael Brown2017-09-041-1/+4
| | | | | | | | | | The tap driver can retrieve a potentially unlimited number of packets in a single poll. This can lead to heap exhaustion under heavy load. Fix by imposing an artificial receive quota (as already used in other drivers without natural receive limits). Signed-off-by: Michael Brown <mcb30@ipxe.org>
* [malloc] Avoid false positive warnings from valgrindMichael Brown2017-09-041-1/+8
| | | | | | | | | | | | | | Calling discard_cache() is likely to result in a call to free_memblock(), which will call valgrind_make_blocks_noaccess() before returning. This causes valgrind to report an invalid read on the next iteration through the loop in alloc_memblock(). Fix by explicitly calling valgrind_make_blocks_defined() after discard_cache() returns. Also call valgrind_make_blocks_noaccess() before calling discard_cache(), to guard against free list corruption while executing cache discarders. Signed-off-by: Michael Brown <mcb30@ipxe.org>
* [romprefix] Avoid unaligned accesses within ROM headersMichael Brown2017-08-302-0/+4
| | | | | | | | | Ensure that all headers (PCI, UNDI, PnP, iPXE) are aligned to at least four bytes, so that all accesses to header fields will be correctly aligned even when reading directly from the expansion ROM BAR. Reported-by: Peter von Konigsmark <peter@exablaze.com> Signed-off-by: Michael Brown <mcb30@ipxe.org>
* [intel] Add various PCI device IDsRichard Moore2017-08-221-0/+4
| | | | Signed-off-by: Michael Brown <mcb30@ipxe.org>
* [shell] Enable "shell" command even when BANNER_TIMEOUT is zeroMichael Brown2017-08-012-0/+4
| | | | | | | | | | | Setting BANNER_TIMEOUT to zero removes the only symbol reference to shell.o, causing the "shell" command to become unavailable. Add SHELL_CMD in config/general.h (enabled by default) which will explicitly drag in shell.o regardless of the value of BANNER_TIMEOUT. Reported-by: Julian Brost <julian@0x4a42.net> Signed-off-by: Michael Brown <mcb30@ipxe.org>
* [hyperv] Do not steal ownership from the Gen 2 UEFI firmwareMichael Brown2017-07-282-0/+35
| | | | | | | | | | | | | | | | | | | | | | | | | | We must not steal ownership from the Gen 2 UEFI firmware, since doing so will cause an immediate system crash (most likely in the form of a reboot). This problem was masked before commit a0f6e75 ("[hyperv] Do not fail if guest OS ID MSR is already set"), since prior to that commit we would always fail if we found any non-zero guest OS identity. We now accept a non-zero previous guest OS identity in order to allow for situations such as chainloading from iPXE to another iPXE, and as a prerequisite for commit b91cc98 ("[hyperv] Cope with Windows Server 2016 enlightenments"). A proper fix would be to reverse engineer the UEFI protocols exposed within the Hyper-V Gen 2 firmware and use these to bind to the VMBus device representing the network connection, (with the native Hyper-V driver moved to become a BIOS-only feature). As an interim solution, fail to initialise the native Hyper-V driver if we detect the guest OS identity known to be used by the Gen 2 UEFI firmware. This will cause the standard all-drivers build (ipxe.efi) to fall back to using the SNP driver. Signed-off-by: Michael Brown <mcb30@ipxe.org>
* [acpi] Fix spurious uninitialised-variable warning on some gcc versionsMichael Brown2017-07-281-1/+1
| | | | | Reported-by: Christian Nilsson <nikize@gmail.com> Signed-off-by: Michael Brown <mcb30@ipxe.org>
* [acpi] Compute and check checksum for ACPI tablesLaurent Gourvénec2017-07-281-6/+37
| | | | | Modified-by: Michael Brown <mcb30@ipxe.org> Signed-off-by: Michael Brown <mcb30@ipxe.org>
* [build] Fix ARM32 EFI builds with current EDK2 headersMichael Brown2017-07-281-0/+4
| | | | | | | | | | | | EDK2 commit 6440385 ("MdePkg/Include: Add enumeration size checks to Base.h") enforced the UEFI specification mandate that enums should always be 32 bits. This revealed a latent bug in iPXE, which does not build with -fno-short-enums. Fix by adding -fno-short-enums to CFLAGS for ARM32 EFI builds. Reported-by: Benjamin S. Allen <bsallen@alcf.anl.gov> Signed-off-by: Michael Brown <mcb30@ipxe.org>
* [build] Fix use of inline assembly on GCC 4.8 ARM64 buildsMichael Brown2017-07-281-2/+2
| | | | | | | | | | | | | | | | The inline assembly used in include/errno.h to generate the einfo blocks requires the ability to generate an immediate constant with no immediate-value prefix (such as the dollar sign for x86 assembly). We currently achieve this via the undocumented "%c0" form of operand. This causes an "invalid operand prefix" error on GCC 4.8 for ARM64 builds. Fix by switching to the equally undocumented "%a0" form of operand, which appears to work correctly on all tested versions of GCC. Reported-by: Benjamin S. Allen <bsallen@alcf.anl.gov> Signed-off-by: Michael Brown <mcb30@ipxe.org>
* [build] Conditionalise use of -mabi=lp64 for ARM64 buildsMichael Brown2017-07-281-1/+12
| | | | | | | | The -mabi option was added in GCC 4.9. Test for the existence of this option to allow for building with earlier versions of GCC. Reported-by: Benjamin S. Allen <bsallen@alcf.anl.gov> Signed-off-by: Michael Brown <mcb30@ipxe.org>
* [efi] Enumerate PCI BARs in same order as SnpDxeMichael Brown2017-07-211-2/+2
| | | | | | | | | | | | | | | | | | | The UEFI specification has an implicit and demonstrably incorrect requirement (in the Mem_IO() calling convention) that any UNDI network device has at most one memory BAR and one I/O BAR. Some UEFI platforms have been observed to report the existence of non-existent additional I/O BARs, causing iPXE to select the wrong BAR. This problem does not affect the SnpDxe driver, since that driver will always choose the lowest numbered existent BAR of each type. Adjust iPXE's behaviour to match that of SnpDxe, i.e. to always select the lowest numbered BAR(s). Debugged-by: Andreas Hammarskjöld <junior@2PintSoftware.com> Debugged-by: Adklei <adklei@realtek.com> Signed-off-by: Michael Brown <mcb30@ipxe.org>
* [lan78xx] Add driver for Microchip LAN78xx USB Ethernet NICsMichael Brown2017-07-103-0/+495
| | | | | Originally-implemented-by: Ravi Hegde <ravi.hegde@microchip.com> Signed-off-by: Michael Brown <mcb30@ipxe.org>
* [smsc75xx] Expose functionality shared with LAN78xx devicesMichael Brown2017-07-102-6/+13
| | | | | | | | The LAN78xx datapath is essentially identical to that of the SMSC75xx. Expose the transmit, poll, and bulk IN endpoint operations to allow for reuse by the LAN78xx driver. Signed-off-by: Michael Brown <mcb30@ipxe.org>
* [smscusb] Allow for alternative PHY register layoutsMichael Brown2017-07-106-24/+49
| | | | | | | The LAN78xx PHY interrupt source and mask registers do not match those used by the SMSC75xx and SMSC95xx. Signed-off-by: Michael Brown <mcb30@ipxe.org>
* [smscusb] Move non-inline register access functions to smscusb.cMichael Brown2017-07-102-49/+61
| | | | Signed-off-by: Michael Brown <mcb30@ipxe.org>
* [virtio] Support VIRTIO_NET_F_IOMMU_PLATFORMJason Wang2017-07-102-1/+3
| | | | | | | | | Since we don't enable IOMMU at all, we can then simply enable the IOMMU support by claiming the support of VIRITO_F_IOMMU_PLATFORM. This fixes booting failure when iommu_platform is set from qemu cli. Signed-off-by: Jason Wang <jasowang@redhat.com> Signed-off-by: Michael Brown <mcb30@ipxe.org>
* [smscusb] Add ability to read MAC address from OTPMichael Brown2017-07-072-1/+251
| | | | Signed-off-by: Michael Brown <mcb30@ipxe.org>
* [smsc75xx] Use common SMSC USB device functionalityMichael Brown2017-07-072-721/+127Star
| | | | Signed-off-by: Michael Brown <mcb30@ipxe.org>
* [smsc95xx] Use common SMSC USB device functionalityMichael Brown2017-07-072-778/+141Star
| | | | Signed-off-by: Michael Brown <mcb30@ipxe.org>
* [smscusb] Abstract out common SMSC USB device functionalityMichael Brown2017-07-073-0/+826
| | | | | | | | | The smsc75xx and smsc95xx drivers include a substantial amount of identical functionality, varying only in the base address of register sets. Abstract out this common functionality to allow code to be shared between the drivers. Signed-off-by: Michael Brown <mcb30@ipxe.org>
* [intel] Add support for I219-V in 7th Gen Intel NUCJerone Young2017-07-051-0/+1
| | | | Signed-off-by: Michael Brown <mcb30@ipxe.org>
* [tls] Support RFC5746 secure renegotiationMichael Brown2017-07-042-19/+203
| | | | | | | Support renegotiation with servers supporting RFC5746. This allows for the use of per-directory client certificates. Signed-off-by: Michael Brown <mcb30@ipxe.org>
* [mucurses] Avoid potential division by zeroMichael Brown2017-07-041-2/+1Star
| | | | Signed-off-by: Michael Brown <mcb30@ipxe.org>
* [usb] Use non-zero language ID to retrieve stringsMichael Brown2017-07-032-1/+42
| | | | | | | | | | | | We currently use a zero language ID to retrieve strings such as the ECM/NCM MAC address. This works on most hardware devices, but is known to fail on some software emulated CDC-NCM devices. Fix by using the first supported language ID, falling back to English (0x0409) if any error occurs when fetching the list of supported languages. This matches the behaviour of the Linux kernel. Signed-off-by: Michael Brown <mcb30@ipxe.org>
* [exanic] Add driver for Exablaze ExaNIC cardsMichael Brown2017-06-243-0/+1169
| | | | Signed-off-by: Michael Brown <mcb30@ipxe.org>
* [crypto] Expose pem_asn1() for use with non-image dataMichael Brown2017-06-202-42/+81
| | | | Signed-off-by: Michael Brown <mcb30@ipxe.org>
* [crypto] Provide asn1_built() to construct a cursor from a builderMichael Brown2017-06-201-0/+24
| | | | | | | | | | | | | Our ASN.1 parsing code uses a struct asn1_cursor, while the object construction code uses a struct asn1_builder. These structures are identical apart from the const modifier applied to the data pointer in struct asn1_cursor. Provide asn1_built() to safely typecast a struct asn1_builder to a struct asn1_cursor, allowing constructed objects to be passed to functions expecting a struct asn1_cursor. Signed-off-by: Michael Brown <mcb30@ipxe.org>
* [crypto] Expose asn1_grow()Michael Brown2017-06-202-1/+2
| | | | Signed-off-by: Michael Brown <mcb30@ipxe.org>
* [crypto] Expose RSA_CTX_SIZE constantMichael Brown2017-06-202-1/+4
| | | | Signed-off-by: Michael Brown <mcb30@ipxe.org>
* [cpuid] Allow input %ecx value to be specifiedMichael Brown2017-06-166-45/+57
| | | | | | | | | | | | | | | | | | | | For some CPUID leaves (e.g. %eax=0x00000004), the result depends on the input value of %ecx. Allow this subfunction number to be specified as a parameter to the cpuid() wrapper. The subfunction number is exposed via the ${cpuid/...} settings mechanism using the syntax ${cpuid/<subfunction>.0x40.<register>.<function>} e.g. ${cpuid/0.0x40.0.0x0000000b} ${cpuid/1.0x40.0.0x0000000b} to retrieve the CPU topology information. Signed-off-by: Michael Brown <mcb30@ipxe.org>
* [ecm] Display invalid MAC address strings in debug messagesMichael Brown2017-06-141-1/+6
| | | | Signed-off-by: Michael Brown <mcb30@ipxe.org>
* [build] Use -no-pie on newer versions of gccMichael Brown2017-06-141-3/+8
| | | | | | | | | | | | | Some distributions patch gcc to generate position independent executables by default. We currently include a workaround to check for this and to add -fno-PIE -nopie to CFLAGS if required. Newer patched versions of gcc require -fno-PIE -no-pie instead. Check for both variants. Reported-by: Nathan Rennie-Waldock <nathan.renniewaldock@gmail.com> Originally-fixed-by: Markos Chandras <mchandras@suse.de> Signed-off-by: Michael Brown <mcb30@ipxe.org>
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