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* qemu: add easy git harnessJason A. Donenfeld2018-08-061-1/+8
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* qemu: update musl and kernelJason A. Donenfeld2018-07-241-2/+2
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* qemu: show log if process crashesJason A. Donenfeld2018-07-241-10/+16
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* qemu: decide debug kernel based on KERNEL_VERSIONJason A. Donenfeld2018-07-061-8/+8
| | | | | | | If KERNEL_VERSION ends in -debug, then automatically set DEBUG_KERNEL If DEBUG_KERNEL is set, now the debug kernel will be built in a separate directory from the normal kernel, so that it's easy to toggle back and forth.
* qemu: bump default kernel versionJason A. Donenfeld2018-07-061-1/+1
| | | | | This fixes DEBUG_KERNEL=yes due to dd275caf4a0d9b219fffe49288b6cc33cd564312 being backported to 4.17.4.
* qemu: bump default kernelJason A. Donenfeld2018-06-171-1/+1
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* qemu: bump default versionJason A. Donenfeld2018-05-311-1/+1
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* qemu: bump default kernel for gcc 8.1Jason A. Donenfeld2018-05-221-1/+1
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* qemu: retry on 404 in wget for kernel.org raceJason A. Donenfeld2018-04-231-3/+1
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* send: account for route-based MTUJason A. Donenfeld2018-04-151-0/+3
| | | | | | | | | | It might be that a particular route has a different MTU than the interface, via `ip route add ... dev wg0 mtu 1281`, for example. In this case, it's important that we don't accidently pad beyond the end of the MTU. We accomplish that in this patch by carrying forward the MTU from the dst if it exists. We also add a unit test for this issue. Reported-by: Roman Mamedov <rm.wg@romanrm.net>
* qemu: bump default versionJason A. Donenfeld2018-04-151-1/+1
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* qemu: more granular memleak detectionJason A. Donenfeld2018-02-121-2/+15
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* qemu: add support for powerpcJason A. Donenfeld2018-02-072-2/+21
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* qemu: update base versionsJason A. Donenfeld2018-02-021-2/+2
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* curve25519: replace fiat64 with faster hacl64Jason A. Donenfeld2018-02-011-1/+1
| | | | | This reverts commit da4ff396cc5d5e0ff21f9ecbc2f951c048c63fff and adds some optimizations to hacl64.
* curve25519: replace hacl64 with fiat64Jason A. Donenfeld2018-02-011-1/+1
| | | | | | | | | | For now, it's faster: hacl64: 109782 cycles per call fiat64: 108984 cycles per call It's quite possible this commit will be reverted with nice changes from INRIA, though.
* qemu: disable AVX-512 in userlandJason A. Donenfeld2018-01-231-0/+2
| | | | | | | We're trying to test kernel code, so the userland tools we use for doing that testing don't really matter to us. We turn off AVX512, because WireGuard supports kernels that do not support AVX512 userlands. It's easier to just blanket-disable it all, since it doesn't matter anyway.
* qemu: disable PIE for compilationJason A. Donenfeld2018-01-231-1/+3
| | | | | | Some old kernels never backported this fix to the build system, and it's required if we want to build those old kernels with PIE-by-default compilers.
* tools: share curve25519 implementations with kernelJason A. Donenfeld2018-01-231-2/+2
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* global: year bumpJason A. Donenfeld2018-01-032-2/+2
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* global: add SPDX tags to all filesGreg Kroah-Hartman2017-12-092-1/+8
| | | | | | | | | | | | | It's good to have SPDX identifiers in all files as the Linux kernel developers are working to add these identifiers to all files. Update all files with the correct SPDX license identifier based on the license text of the project or based on the license in the file itself. The SPDX identifier is a legally binding shorthand, which can be used instead of the full boiler plate text. Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Modified-by: Jason A. Donenfeld <Jason@zx2c4.com>
* qemu: take shared lock for untarringJason A. Donenfeld2017-11-271-18/+10
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* qemu: use netfilter.org https siteJason A. Donenfeld2017-11-251-2/+2
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* poly1305: import MIPS64 primitive from OpenSSLJason A. Donenfeld2017-11-223-6/+8
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* compat: new kernels have netlink fixesJason A. Donenfeld2017-11-221-1/+1
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* qemu: use unprefixed strip when not cross-compilingJason A. Donenfeld2017-11-171-1/+2
| | | | | | | Fedora/Redhat doesn't ship with a prefixed strip, and we don't need to use it anyway when we're not cross compiling, so don't. Reported-by: Samuel Neves <sneves@dei.uc.pt>
* qemu: update kernelJason A. Donenfeld2017-11-141-1/+1
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* qemu: bump kernel versionJason A. Donenfeld2017-11-101-1/+1
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* qemu: more debuggingJason A. Donenfeld2017-11-103-1/+15
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* qemu: check for memory leaksJason A. Donenfeld2017-11-103-6/+28
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* qemu: test using four coresJason A. Donenfeld2017-10-311-1/+1
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* qemu: work around ccache bugsJason A. Donenfeld2017-10-311-1/+1
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* qemu: allow for cross compilationJason A. Donenfeld2017-10-3111-94/+240
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* qemu: put hvc directive into configurationJason A. Donenfeld2017-10-172-2/+3
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* qemu: newer packagesJason A. Donenfeld2017-10-171-37/+50
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* qemu: always create directory before untarringJason A. Donenfeld2017-10-171-1/+9
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* qemu: phase out bitbangingJason A. Donenfeld2017-10-173-28/+5
| | | | | | | Although I was secretly proud of having figured out these unholy hacks, it turns out -no-reboot lets us do things in a platform-independent way. Suggested-by: Jann Horn <jann@thejh.net>
* qemu: open /dev/console if we're started earlyJason A. Donenfeld2017-10-171-3/+19
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* qemu: simplify shutdownJason A. Donenfeld2017-10-171-4/+2
| | | | | Now that we have the watchdog, killing the watchdog process is another way of shutting down.
* qemu: add more debugging options to main makefileJason A. Donenfeld2017-10-172-13/+11
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* qemu: work on ubuntu toolchainJason A. Donenfeld2017-10-171-1/+1
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* qemu: add build-only targetJason A. Donenfeld2017-10-171-0/+3
| | | | Useful for IDEs
* qemu: bump stable kernelJason A. Donenfeld2017-10-091-1/+1
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* global: satisfy bitshift pedantryJason A. Donenfeld2017-10-031-1/+1
| | | | Suggested-by: Sultan Alsawaf <sultanxda@gmail.com>
* qemu: add watchdog for not hanging on oopsJason A. Donenfeld2017-10-023-1/+24
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* netlink: switch from ioctl to netlink for configurationJason A. Donenfeld2017-10-021-4/+4
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* queue: entirely rework parallel systemJason A. Donenfeld2017-09-181-1/+0
| | | | | | | | | | This removes our dependency on padata and moves to a different mode of multiprocessing that is more efficient. This began as Samuel Holland's GSoC project and was gradually reworked/redesigned/rebased into this present commit, which is a combination of his initial contribution and my subsequent rewriting and redesigning.
* qemu: enable debug info for debug qemuJason A. Donenfeld2017-09-161-0/+2
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* socket: improve reply-to-src algorithmJason A. Donenfeld2017-08-231-0/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | We store the destination IP of incoming packets as the source IP of outgoing packets. When we send outgoing packets, we then ask the routing table for which interface to use and which source address, given our inputs of the destination address and a suggested source address. This all is good and fine, since it means we'll successfully reply using the correct source address, correlating with the destination address for incoming packets. However, what happens when default routes change? Or when interface IP addresses change? Prior to this commit, after getting the response from the routing table of the source address, destination address, and interface, we would then make sure that the source address actually belonged to the outbound interface. If it didn't, we'd reset our source address to zero and re-ask the routing table, in which case the routing table would then give us the default IP address for sending that packet. This worked mostly fine for most purposes, but there was a problem: what if WireGuard legitimately accepted an inbound packet on a default interface using an IP of another interface? In this case, falling back to asking for the default source IP was not a good strategy, since it'd nearly always mean we'd fail to reply using the right source. So, this commit changes the algorithm slightly. Rather than falling back to using the default IP if the preferred source IP doesn't belong to the outbound interface, we have two checks: we make sure that the source IP address belongs to _some_ interface on the system, no matter which one (so long as it's within the network namespace), and we check whether or not the interface of an incoming packet matches the returned interface for the outbound traffic. If both these conditions are true, then we proceed with using this source IP address. If not, we fall back to the default IP address.
* qemu: warn on all unseeded random usage when in debug modeJason A. Donenfeld2017-07-201-0/+1
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