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Author SHA1 Message Date
Michael Stapelberg
057fc9dcb0 add /update/features handler for feature negotiation 
related to https://github.com/gokrazy/gokrazy/issues/52
 2020-04-07 09:52:12 +02:00
Michael Stapelberg
ffc8928d2e update to new rootdev API 
related to https://github.com/gokrazy/gokrazy/issues/52
 2020-04-07 09:00:10 +02:00
Michael Stapelberg
6beb2e16aa implement remote syslog as a platform feature 
To configure, run the following command in an interactive shell (e.g. via
breakglass, or when mounting the permanent partition of the SD card on the
host):

  mkdir /perm/remote_syslog
  echo 10.0.0.76:514 > /perm/remote_syslog/target

I recommend using a (static) IP address for increased reliability, so that
remote syslog works even when DNS does not.

fixes #50
 2019-12-10 22:15:42 +01:00
Michael Stapelberg
25d06ba514 gofmt GENERATED_bundled.go 2019-11-09 09:59:25 +01:00
Michael Stapelberg
09fbdb123e bundle bootstrap, bootstrap-table and jquery assets 
This way, the UI works even when the user is offline, which is handy for
router7.
 2019-11-09 09:37:23 +01:00
Michael Stapelberg
520b8ca41d dhcp: use SetReadDeadline, not SetDeadline 
related to https://github.com/mdlayher/raw/issues/42
 2019-03-21 09:16:44 +01:00
Michael Stapelberg
d5bd78d555 travis: test with go1.12 
github.com/mdlayher/raw requires go1.12.
 2019-03-04 17:47:55 +01:00
Michael Stapelberg
107f6fe098 start /perm/sh if it exists upon any byte on the serial console 
This allows debugging when the network is down.
 2019-02-19 07:46:07 +01:00
Michael Stapelberg
4af394b99e README: use sdx to prevent mistakes 2019-02-07 14:39:40 +01:00
Michael Stapelberg
7fe27df5ed listeners: support github.com/gokrazy/gdns, export IsInPrivateNet 2019-01-16 21:01:01 +01:00
Michael Stapelberg
856c5b62d4 dhcp: request domain name, too 2019-01-01 17:17:02 +01:00
Michael Stapelberg
25dc781a8e Set Access-Control-Allow-Origin header to load external CSS 
With Chrome 70, I didn’t get the bootstrap CSS files anymore.
 2018-12-26 16:15:14 +01:00
Michael Stapelberg
2216841c80 travis: update to more recent Go version 2018-11-21 08:49:51 +01:00
Michael Stapelberg
3af32e1d14 dhcp: resolve a few TODOs in comments 2018-11-21 08:46:16 +01:00
Michael Stapelberg
14287515bc dhcp: switch to github.com/rtr7/dhcp4 
All existing DHCPv4 packages I looked at were unappealing for one reason or
another, so we’re now using a little helper to glue github.com/google/gopacket
and github.com/mdlayher/raw together, which suffices for our use-case and gives
us more control.
 2018-11-21 08:43:49 +01:00
Michael Stapelberg
a6ce446055 format GENERATED_bundled.go with newer gofmt 2018-11-01 18:44:10 +01:00
Michael Stapelberg
63803ab95e update listeners when netlink reports an address change 
related to issue #21
 2018-11-01 18:41:57 +01:00
Michael Stapelberg
5fb3d517ed listeners: improve logging 2018-11-01 18:41:55 +01:00
Michael Stapelberg
99287f68e3 update rootRe for running in user-mode linux 2018-11-01 17:54:23 +01:00
Michael Stapelberg
389a515555 README: update to reflect quickstart 
https://gokrazy.org/quickstart.html
 2018-11-01 17:07:53 +01:00
Tobias Klauser
b6086c6f88 reboot: use KexecFileLoad and KEXEC_* from golang.org/x/sys/unix (#42) 
The KexecFileLoad syscall wrapper and the KEXEC_* constants were added
to golang.org/x/sys/unix. Use them instead of open-coding them.
 2018-10-05 18:05:53 +02:00
Michael Stapelberg
1c16b3b4eb serve favicon.ico 2018-07-15 18:32:46 +02:00
Michael Stapelberg
504f06b15f issue template: add missing * 2018-07-15 17:24:03 +02:00
Michael Stapelberg
6ac0eb2ced add issue template asking for the hardware target 2018-07-15 17:23:07 +02:00
Michael Stapelberg
fc8dd9e2f2 reboot: use cmdline from boot/cmdline.txt 
For bootonly updates, switching to the inactive root partition is incorrect.
 2018-07-15 10:40:19 +02:00
Michael Stapelberg
9770d4408f move root device finding function to internal/rootdev 2018-07-14 23:37:12 +02:00
Michael Stapelberg
d8206c507c /update/mbr: strip p suffix from mmcblk0p 2018-07-13 23:53:46 +02:00
Michael Stapelberg
835dae6a18 add randomd (carries entropy across restarts) 2018-07-13 23:44:47 +02:00
Michael Stapelberg
24c8ad07b5 streamRequestTo: call f.Sync() 
When calling reboot shortly after /update/*, the kernel should flush its cache,
but if you’re not calling reboot, it would be good to persist the data on disk
nevertheless.
 2018-07-13 23:16:26 +02:00
Michael Stapelberg
0f8d40d7f6 add /update/mbr 2018-07-12 09:27:32 +02:00
Michael Stapelberg
c74265523b implement XSRF/CSRF protection for /stop and /restart 
While stopping/restarting processes seems like a nuisance at best, it’s good
style to prevent these attacks.

This commit the Double-Submit Cookie protection, which seems appropriate for our
architecture and demands. See also:
https://www.owasp.org/index.php/Cross-Site_Request_Forgery_(CSRF)_Prevention_Cheat_Sheet#Double_Submit_Cookie
 2018-06-25 18:38:08 +02:00
Michael Stapelberg
7dc7a36757 supervise: refactor to use one HTTP handler 2018-06-25 18:27:23 +02:00
Michael Stapelberg
9a14ab0d8d dhcp: add note to prevent future mistakes 2018-06-22 09:02:53 +02:00
Michael Stapelberg
4a126f13af init+dhcp changes for Squashfs root file systems 
We can do away with a bunch of hacks now, but we’ll keep them around for a
little while to make updates easier (i.e. to boot with old and new gokr-packer
versions, just in case people don’t update both at the same time).
 2018-06-21 23:21:51 +02:00
Michael Stapelberg
d1d355d840 listeners: treat interfacees named uplink* as public 2018-06-18 09:52:48 +02:00
Michael Stapelberg
59b99bc704 remove hard-coded mmcblk0 from all places 2018-06-17 09:31:14 +02:00
Michael Stapelberg
4f0e427025 reboot: use kexec where possible 
This doesn’t work on the Raspberry Pi yet (due to missing kexec_file_load), but
I tested it in qemu.
 2018-06-17 09:29:29 +02:00
Michael Stapelberg
91da7026f8 reboot: send SIGTERM to processes, wait for 1s 
This way, programs can flush state to permanent storage if they need to.
 2018-06-17 08:53:19 +02:00
Michael Stapelberg
6c059494af ntp: set real-time clock (hwclock) if present 2018-06-13 23:51:31 +02:00
Michael Stapelberg
238bbfa55e init: update listeners when pressing <ENTER> on the serial console 
This is useful when the network doesn’t come up correctly: you can connect a
network cable between your computer and the gokrazy machine, press <ENTER> on
the serial console and connect to gokrazy via its IPv6 link-local address (to
find the address, use ping6 ff02::1%eth0).
 2018-06-12 22:22:47 +02:00
Michael Stapelberg
34f12d9ada update: find root device instead of hard-coding /dev/mmcblk0p* 
This should allow using gokrazy from a USB drive.
 2018-06-12 22:19:13 +02:00
Michael Stapelberg
9063e4526a add hostname to title 
This makes it easier to deal with multiple tabs on multiple devices :)
 2018-05-17 09:11:44 +02:00
Michael Stapelberg
6063608b2b update: introduce a /bootonly handler for bakery 
Regular updates hit /boot, /root, then /switch.

bakery only updates /boot, so we need to take care of persisting the active root
partition across /boot updates.
 2018-05-17 09:08:25 +02:00
Tobias Klauser
50b9390a43 dhcp: simplify Utsname conversion (#36) 
Utsname from golang.org/x/sys/unix contains byte array members instead of
int8/uint8. This allows to simplify the NULL byte indexing in
addHostname.
 2018-03-29 12:09:08 +02:00
Michael Stapelberg
5760e0f265 use GOKRAZY_UPDATE envvar to avoid exposing passwords in argv 
fixes #38
 2018-03-29 11:59:54 +02:00
Michael Stapelberg
a470a80ae1 README: expand on the “changing init behavior” example 
fixes #39
 2018-03-29 11:50:30 +02:00
Michael Stapelberg
b5d7cb2fcf add PublicInterfaceAddrs and display them on the status page 2018-03-20 19:34:36 +01:00
Tobias Klauser
ffa8ce0e42 use WDIOC_KEEPALIVE from golang.org/x/sys/unix (#35) 
...now that it was added there.
 2017-10-28 12:55:27 +02:00
Michael Stapelberg
2e60d5b8c8 ping hardware watchdog every 1s 
In case gokrazy gets stuck for whichever reason, the hardware watchdog will
reset the Raspberry Pi 3.
 2017-10-21 20:05:26 +02:00
Michael Stapelberg
32e8b6dd34 dhcp: persist domain name to resolv.conf if specified 2017-09-19 14:48:36 +02:00