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* setupapi: safer aliasing of slice typesJason A. Donenfeld2019-05-035-23/+40
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* wintun: work around GetInterface staleness bugJason A. Donenfeld2019-05-032-18/+30
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* wintun: don't retry when not creatingJason A. Donenfeld2019-05-022-9/+26
| | | | | | The only time we're trying to counteract the race condition is when we're creating a driver. When we're simply looking up all drivers, it doesn't make sense to retry.
* wintun: try harder to open registry keyJason A. Donenfeld2019-04-291-2/+2
| | | | | This sucks. Can we please find a deterministic way of doing this instead?
* tun: freebsd: work around numerous kernel panics on shutdownJason A. Donenfeld2019-04-231-23/+82
| | | | | | | | | There are numerous race conditions. But even this will crash it: while true; do ifconfig tun0 create; ifconfig tun0 destroy; done It seems like LLv6 is related, which we're not using anyway, so explicitly disable it on the interface.
* setupapi: Fix struct size mismatchesSimon Rozman2019-04-194-8/+27
| | | | Signed-off-by: Simon Rozman <simon@rozman.si>
* setupapi: actually fix padding by rounding up to sizeof(void*)Jason A. Donenfeld2019-04-191-1/+1
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* tun: darwin: write routeSocket variable in helperJason A. Donenfeld2019-04-191-2/+4
| | | | Otherwise the race detector "complains".
* setupapi: Revise DrvInfoDetailData struct size calculationSimon Rozman2019-04-182-3/+7
| | | | | | | Go adds trailing padding to DrvInfoDetailData struct in GOARCH=386 which confuses SetupAPI expecting exactly sizeof(SP_DRVINFO_DETAIL_DATA). Signed-off-by: Simon Rozman <simon@rozman.si>
* windows: use proper constants from updated x/sysJason A. Donenfeld2019-04-133-16/+16
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* tun: windows: Adopt new error codes returned by WintunSimon Rozman2019-04-111-3/+2
| | | | Signed-off-by: Simon Rozman <simon@rozman.si>
* tun: windows: do not sleep after OPERATION_ABORTED on writeSimon Rozman2019-04-111-2/+1
| | | | Signed-off-by: Simon Rozman <simon@rozman.si>
* tun: windows: do not sleep after OPERATION_ABORTEDJason A. Donenfeld2019-04-091-2/+1
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* tun: windows: Retry R/W on ERROR_OPERATION_ABORTEDSimon Rozman2019-04-041-18/+44
| | | | Signed-off-by: Simon Rozman <simon@rozman.si>
* tun: windows: Attempt to reopen handle on all errorsSimon Rozman2019-04-031-15/+9
| | | | Signed-off-by: Simon Rozman <simon@rozman.si>
* wintun: rename device using undocumented API that netsh.exe usesJason A. Donenfeld2019-04-012-1/+41
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* wintun: add more retry loopsJason A. Donenfeld2019-04-013-30/+56
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* tun: windows: cancel ongoing reads on closing and delete after closeJason A. Donenfeld2019-03-261-4/+11
| | | | | This reverts commit 52ec440d7977fad966002c3710ed9df957943407 and adds some spice.
* wintun: query for NetCfgInstanceId several timesJason A. Donenfeld2019-03-221-5/+16
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* tun: windows: delete interface before deleting file handlesJason A. Donenfeld2019-03-221-9/+4
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* tun: windows: Make adapter rename asynchronousSimon Rozman2019-03-222-60/+13
| | | | Signed-off-by: Simon Rozman <simon@rozman.si>
* tun: windows: Adapter devices renamed to WINTUN<LUID Index>Simon Rozman2019-03-224-52/+63
| | | | Signed-off-by: Simon Rozman <simon@rozman.si>
* tun: windows: Increase unavailable adapter timeout to 30secSimon Rozman2019-03-221-1/+1
| | | | | | 5 seconds was too short when debugging. Signed-off-by: Simon Rozman <simon@rozman.si>
* tun: windows: Make writing persistent tooSimon Rozman2019-03-221-15/+17
| | | | Signed-off-by: Simon Rozman <simon@rozman.si>
* tun: windows: Fix paused adapter testSimon Rozman2019-03-221-1/+1
| | | | Signed-off-by: Simon Rozman <simon@rozman.si>
* tun: windows: just open two file handlesJason A. Donenfeld2019-03-213-162/+83
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* receive: implement flush semanticsJason A. Donenfeld2019-03-217-5/+28
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* tun: windows: add dummy overlapped events backJason A. Donenfeld2019-03-211-2/+21
| | | | These seem basically wrong to me, but we get crashes without them.
* tun: windows: use new constants in sysJason A. Donenfeld2019-03-201-1/+1
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* wintun: Use native Win32 API for I/OSimon Rozman2019-03-215-38/+173
| | | | Signed-off-by: Simon Rozman <simon@rozman.si>
* tun: windows: wintun does iocpJason A. Donenfeld2019-03-182-142/+49
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* tun: windows: temporary hack for forcing MTUJason A. Donenfeld2019-03-131-1/+8
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* wintun: Poll more oftenJason A. Donenfeld2019-03-101-1/+1
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* wintun: Make errors more descriptiveSimon Rozman2019-03-081-15/+20
| | | | Signed-off-by: Simon Rozman <simon@rozman.si>
* wintun: Return correct reboot-req flag on CreateInterface() error tooSimon Rozman2019-03-081-1/+1
| | | | Signed-off-by: Simon Rozman <simon@rozman.si>
* wintun: Fix double-quoted strings escaping on outputSimon Rozman2019-03-082-4/+4
| | | | Signed-off-by: Simon Rozman <simon@rozman.si>
* wintun: Introduce SetupAPI enumerator and machineName constsSimon Rozman2019-03-081-4/+7
| | | | Signed-off-by: Simon Rozman <simon@rozman.si>
* wintun: CleanupSimon Rozman2019-03-071-1/+1
| | | | Signed-off-by: Simon Rozman <simon@rozman.si>
* wintun: Refactor network registry key name generationSimon Rozman2019-03-071-22/+18
| | | | Signed-off-by: Simon Rozman <simon@rozman.si>
* wintun: Revise interface creation waitSimon Rozman2019-03-073-59/+106
| | | | | | | | | | | | | | | | | | | | DIF_INSTALLDEVICE returns almost immediately, while the device installation continues in the background. It might take a while, before all registry keys and values are populated. Previously, wireguard-go waited for HKLM\SYSTEM\CurrentControlSet\ Control\Class\{4D36E972-E325-11CE-BFC1-08002BE10318}\<id> registry key only. Followed by a SetInterfaceName() method of Wintun struct which tried to access HKLM\SYSTEM\CurrentControlSet\Control\Network\ {4D36E972-E325-11CE-BFC1-08002BE10318}\<id>\Connection registry key might not be available yet. This commit loops until both registry keys are available before returning from CreateInterface() function. Signed-off-by: Simon Rozman <simon@rozman.si>
* tun: linux: work out netpoll trickJason A. Donenfeld2019-03-071-54/+46
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* wintun: Resolve some of golint warningsSimon Rozman2019-03-044-17/+33
| | | | Signed-off-by: Simon Rozman <simon@rozman.si>
* Elaborate the failing step when forwarding errors on returnSimon Rozman2019-03-041-3/+3
| | | | Signed-off-by: Simon Rozman <simon@rozman.si>
* Simplify reading NetCfgInstanceId from registrySimon Rozman2019-03-041-8/+2
| | | | | | | | As querying non-existing registry value and reading non-existing registry string value both return ERROR_FILE_NOT_FOUND, we can use later only. Signed-off-by: Simon Rozman <simon@rozman.si>
* Unify interface-specific network registry key openSimon Rozman2019-03-041-10/+19
| | | | Signed-off-by: Simon Rozman <simon@rozman.si>
* tun: import mobile particularitiesJason A. Donenfeld2019-03-042-5/+29
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* global: begin modularizationJason A. Donenfeld2019-03-032-1/+93
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* tun: windows: expose GUIDJason A. Donenfeld2019-03-011-0/+4
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* tun: allow special methods in NativeTunJason A. Donenfeld2019-03-016-65/+65
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* tun: linux: netpoll is broken for tun's epollJason A. Donenfeld2019-02-271-27/+48
| | | | | | So this mostly reverts the switch to Sysconn for Linux. Issue: https://github.com/golang/go/issues/30426