wibble
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Daniel Barlow
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214
THOUGHTS.txt
214
THOUGHTS.txt
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@ -771,3 +771,217 @@ we have a firewall nft script but we're not running it on boot
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we have forwarding but no dns, maybe because we haven't told
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we have forwarding but no dns, maybe because we haven't told
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dnsmasq about any upstream servers
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dnsmasq about any upstream servers
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Sun Feb 26 21:08:47 GMT 2023
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to add firmware we need to put files in /lib/firmware, which means
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a module
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i guess we should do that in the device module
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we can create the firmware files as packages
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for the cal data we would like to get it from the device MTD "art"
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partition at
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boot time.
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f
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====from openwrt
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case "$FIRMWARE" in
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"ath10k/cal-pci-0000:00:00.0.bin")
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case $board in
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allnet,all-wap02860ac|\
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araknis,an-500-ap-i-ac|\
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araknis,an-700-ap-i-ac|\
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engenius,eap1200h|\
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engenius,enstationac-v1|\
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glinet,gl-x750|\
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watchguard,ap300)
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caldata_extract "art" 0x5000 0x844
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ath10k_patch_mac $(macaddr_add $(mtd_get_mac_binary art 0x0) 2)
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caldata_extract part offset count
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caldata_dd $mtd /lib/firmware/$FIRMWARE $count $offset || \
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caldata_die "failed to extract calibration data from $mtd"
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dd if=$source of=$target iflag=skip_bytes,fullblock bs=$count skip=$offset count=1 2>/dev/null
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=======
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part=$(basename $(dirname $(grep -l art /sys/class/mtd/*/name)))
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dd if=/dev/$part \
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of=/run/cal-pci-0000:00:00.0.bin iflag=skip_bytes,fullblock \
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bs=0x844 skip=0x5000 count=1
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Mon Feb 27 22:46:37 GMT 2023
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Found and fixed a bunchg of things that were stopping ath10k from
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working. The remaining problem is (I think) that insmod is not
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synchronous, so "ip link set up dev wlan1" doesn't work immediately
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after the module is inserted. Maybe we need another netlink thing
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to wait until the interface is present.
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Wed Mar 1 18:26:44 GMT 2023
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ath10k works, but the wlan module loading stuff is quite kludgey
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I wonder if wlan0, wlan1, eth0, eth1 etc should be defined per-device
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- how does the aplication config know which devices exist? If we
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decide to switch to some form of persistent device naming, the names
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will differ from one device to the next. Perhaps the device should
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also provide standard names where possible?
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services.network.links = {
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lan = interface { ... };
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wan = interface { ... };
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wlan_24 = interface { ... };
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wlan_5 = interface { ... };
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}
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Thu Mar 2 22:45:11 GMT 2023
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We have a flashable image!
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Now we can use the gl-ar750 for internet access in the shed, we can
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apppropriate the other device that's in there and try Liminix on it
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Fri Mar 3 23:08:58 GMT 2023
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If we're going to unplug serial console from the gl-ar750 maybe we
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should install an ssh server first.
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0) set a root password
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1) allow setting a root password from configuration.nix
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(means defining config.users properly)
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2) allow authorizedKeys per user
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3) dropbear service
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4) see if the wired lan works! :-)
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Sat Mar 4 12:31:07 GMT 2023
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To improve logging, each service should have its own s6-log service
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which prefixes the service name onto the log line and then sends to
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stdout
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https://skarnet.org/software/s6/servicedir.html
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https://skarnet.org/software/s6/s6-log.html
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As far as I can tell, the `log` directory inside the service
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directory should itself be a service directory for the s6-log
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process that does this
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.... hahaha no that doesn't work
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s6-rc, for some reason, ignores the `log` directory and requires
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that loggers be done with consumer-for and producer-for instead
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Sat Mar 4 23:27:00 GMT 2023
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notes for this week's news update
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* ath10k kernel support and and firmware
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- 5GHz wifi works
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- need to retrieve the firmware from a special - partition on the
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device itself, so we do that using a service that - the wlan
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interface depends on
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* replace waitup with more generally useful ifwait
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to make the ath10k load at boot, we need to insert the module and then
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wait for it to do something or other in the background before we can
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configure the interface. so we need something like waitup but
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for presence not operational state
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it turns out that a program that just waits for a particular interface
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state and then exits is quite simple to add into run scripts and
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we don't need all that notification-fd stuff anyway
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* move FW_LOADER* config to modules/base
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* rejig config a bit.
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- device hardware characteristics are now under
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the `hardware` key and include the available network interfaces.
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- options for users and groups are now defined a bit more
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specifically than "attrset", making it possible to e.g. set a
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root password
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- dts is moved from `boot` to `hardware`
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* now producing flashable images, so you can generate a liminix config
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and write it to the device instead of having to boot using TFTP and
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a serial console every time
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* ssh support
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* prefix logs with the service name
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Sun Mar 5 22:51:21 GMT 2023
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Added swconfig: it was a straight copy from nixwrt and hasn't changed
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upstream since. But don't need it, because the lan port works fine
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without it (I assume both lan ports and the cpu are all connected
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untagged)
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Mon Mar 6 09:42:33 GMT 2023
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echo 17 >/sys/class/gpio/export
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echo out >/sys/class/gpio/gpio17/direction
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why are our images getting big
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- lua links ncurses
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- hostapd links openssl and sqlite
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- nftables needs
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- iptables?
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- jansson? what is that?
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- libedit/readline
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- ifwait needs bash
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File: result/squashfs
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Size: 10371072 Blocks: 20256 IO Block: 4096 regular file
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with smaller nftables: 9617408 Blocks: 18784
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hostapd wqithout sqlite 9003008 Blocks: 17584
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without bash: 8622080 Blocks: 16840 IO Block: 4096 regular file
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without lua readline: bigger?! 8769536 Blocks: 17128 IO Block: 4096 regular file
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Mon Mar 6 20:57:49 GMT 2023
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[ 0.539992] mtk_soc_eth 10100000.ethernet: mdio-bus disabled
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[ 10.493918] platform regulatory.0: Direct firmware load for regulatory.db fail
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ed with error -2
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[ 10.502828] cfg80211: failed to load regulatory.db
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Check in morning, but whichever port the ethernet cable is plugged into,
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is considered by the kernel as port 0 - which I think we should treat as
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WAN
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VLAN 1:
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vid: 1
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ports: 1 2 3 4 5 6t
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VLAN 2:
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vid: 2
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ports: 0 6t
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ip link add link eth0 name lan type vlan id 1
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ip link add link eth0 name wan type vlan id 2
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figure out how to add these to gl-mt300a device config
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then extedner.nix can add a bridge
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