HackENS/liminix-fork
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238 commits

Author SHA1 Message Date
Daniel Barlow
99af416e14 use /bin/sh for init scripts 2023-04-19 21:41:05 +01:00
Daniel Barlow
5dd0c6e3c0 rewrite preinit as very small C program 
By using the kernel "nolibc" header to avoid requiring a C library, we
can bring the initramfs size to around 4k

This does involve a tiny bit of inline mips assembly which I'm not
sure about. gcc seems unwilling to generate the code to load $gp at
function entry of main(), so we do it by hand - but I'd rather find
out why gcc doesn't.
 2023-04-15 18:27:39 +01:00
Daniel Barlow
b1a89ae8c3 jffs2: squash uids, enable lzo compression 2023-04-15 17:23:58 +01:00
Daniel Barlow
1cc0b13b57 rewrite systemconfig in C and link statically 
systemconfig (a.k.a "activate") is run from the initramfs. Converting
it from a shell script to an executable means it doesn't depend on
there being a shell in the initramfs
 2023-04-15 17:21:27 +01:00
Brian McKenna
fb796e61e0 pseudofile: allow setting uid and gid of files 
Necessary for Dropbear to accept non-root authorized_keys files.
 2023-04-14 23:12:52 +01:00
Daniel Barlow
9f3c80e774 make initramfs busybox (very slightly) smaller 2023-04-11 23:08:02 +01:00
Daniel Barlow
2566dc564c remove need for symlinks in initramfs busybox 2023-04-10 22:57:50 +01:00
Daniel Barlow
0ad7b0e48b don't hardcode mtd0 initramfs->second stage 2023-04-10 22:57:50 +01:00
Daniel Barlow
0a2881914b set erase block size to something that works for jffs2 2023-04-10 22:57:50 +01:00
Daniel Barlow
4638092d3d build initramfs into kernel 
this doesn't matter for qemu, but there's no other way of
getting a hardware device to find it if the bootloader
won't co-operate
 2023-04-10 22:57:50 +01:00
Daniel Barlow
633a4f8003 move BLK_DEV_INITRD to base.nix 2023-04-10 22:57:50 +01:00
Daniel Barlow
42725f56f9 make jffs2 module provide o.rootfs, conditionally 
it's enabled if config.rootfsType == "jffs2"
 2023-04-10 20:01:58 +01:00
Daniel Barlow
63a89f7d0d add config.boot.initramfs.enable 2023-04-10 19:07:27 +01:00
Daniel Barlow
07eb3d66da remove unused combined-image output 2023-04-10 18:15:48 +01:00
Daniel Barlow
0687ae7f5c rename flashable->flashimage, o.squashfs to rootfs 
"rootfs" describes what it is for, "squashfs" merely says
how it's implemented

(also, rootfs-as-jffs2 will soon be added)
 2023-04-10 18:13:27 +01:00
Daniel Barlow
f5156425a2 correct jffs2 endian, remove unused bindings 2023-04-07 09:39:47 +01:00
Daniel Barlow
54a1ab3529 support jffs2, with initramfs 
the jffs2 filesystem contains only /nix/store and a script which is
run in early init (initramfs) and is responsible for recreating
"traditional" directories (/bin /etc/**/* /var &c) based on the
configuration.

this is tested only in qemu so far and could use some cleanup
 2023-04-04 23:35:49 +01:00
Daniel Barlow
25d9da967c remove support for sockets in pseudofiles 
(1) we can't make them on a real filesystem except by running
something that calls socket()
(2) whyever would we want to?
 2023-04-04 23:23:22 +01:00
Daniel Barlow
f5a7b78679 rename kexec-tools-static 
it doesn't build natively on x86-64 and I don't suppose we need it to
anyway
 2023-03-24 20:51:46 +00:00
Daniel Barlow
c831859513 add flashcp to allow flashing from a running system 2023-03-24 17:32:46 +00:00
Daniel Barlow
045f10e79b build kexec statically 2023-03-24 17:12:19 +00:00
Daniel Barlow
a5cfa37ed3 unify kernel command line handling 
We now use MIPS_CMDLINE_DTB_EXTEND for all boot varieties
(tftpboot, flash boot, kexec) with the addition of
MIPS_BOOTLOADER_CMDLINE_REQUIRE_COOKIE - local patch -
so that the bootloader args are ignored unless they
contain the string "liminix"
 2023-03-23 22:24:44 +00:00
Daniel Barlow
8250d592ba don't hardcode root device, too confusing when adding phram 2023-03-19 20:27:05 +00:00
Daniel Barlow
4b19568f1b add kexecboot 
This allows booting a new image from a running OS, creating a
phram mtd for the root squashfs

* enable CONFIG_KEXEC
* add modules/kexecboot
* patch kexec-tools to add --map-file option for the squashfs
* patch kernel kexec code to call new kernel with DTB
 2023-03-19 20:25:43 +00:00
Daniel Barlow
b85492c744 when flashing, only need to erase the space we're writing 2023-03-18 14:50:09 +00:00
Daniel Barlow
3c6ec354ce move root's home directory to /home/root 
/ is a bad choice of home directory

/home/root instead of /root is to make it easier to write
ssh keys to the right place
 2023-03-18 14:46:50 +00:00
Daniel Barlow
e78d5212e6 move tftp config to base module 
we need it for flashing from u-boot even when tftp booting
is not enabled
 2023-03-18 14:45:51 +00:00
Daniel Barlow
ce05f4e44c extract phram.mtd ramdisk support from tftpboot module 
also rename tftproot output to tftpboot for consistency
 2023-03-18 14:30:10 +00:00
Daniel Barlow
3efa9e0af2 restore missing applets 2023-03-10 23:14:13 +00:00
Daniel Barlow
f2d1789ad7 add openssh authorized_keys 2023-03-10 23:13:32 +00:00
Daniel Barlow
225fc6fe51 configurable busybox 
allows modules to add to the busybox applets and change config
 2023-03-10 18:40:45 +00:00
Daniel Barlow
43f1fb230b remove unrecoginsed earlyprintk param from kernel commandline 2023-03-10 00:50:28 +00:00
Daniel Barlow
d83bcc643e add wifi firmware, move things around in ram 
* at the base address we were using, the filesystem was getting
corrupted presumably because the kernel unpacked into it

* leave a little more space between compressed kernel and
squashfs. this is probably ineffective but also harmless
 2023-03-10 00:48:47 +00:00
Daniel Barlow
91c0147919 set hostname before dhcp client runs 2023-03-08 22:11:59 +00:00
Daniel Barlow
f36d8ef1d0 make mt300a flash-ready 2023-03-08 20:35:41 +00:00
Daniel Barlow
bfbbe00d58 describe role of flash config 2023-03-07 22:36:48 +00:00
Daniel Barlow
fec77a44b5 DRY loopback interface, it's the same everywhere 2023-03-07 22:36:48 +00:00
Daniel Barlow
e8d5e4c788 move regulatory.db to wlan module 2023-03-07 21:32:21 +00:00
Daniel Barlow
08bed15cf8 ssh service 
- dropbear
- generate host keys on first use
- mount /dev/pts

It's not ideal having the host key disappear when the device is
reboot, but without persistent storage the alternative is generating
it at build time. Deferring this problem to another time
 2023-03-04 12:10:06 +00:00
Daniel Barlow
a3cdc32142 define structured options for config.users 2023-03-04 00:24:48 +00:00
Daniel Barlow
e0ea576674 rename "device" config tree as "hardware" 
we are also using "device" for "network device" (as in eth0,
wlan0 etc) so this makes it a bit less confusing perhaps
 2023-03-03 22:52:33 +00:00
Daniel Barlow
263882cbe4 move dts config option from boot to device 2023-03-03 22:43:44 +00:00
Daniel Barlow
bbd699d7b1 add module for device-specific config 
in principle this module declares the config that's defined in
devices/foo/default.nix
 2023-03-03 20:04:39 +00:00
Daniel Barlow
0cd1bd99e1 declare device.flash options in base.nix 
because they're specified in devices/*/default.nix
 2023-03-02 23:28:39 +00:00
Daniel Barlow
6d191b73ae add outputs.flashable - flashable firmware.bin 2023-03-02 23:01:26 +00:00
Daniel Barlow
0cab6e9fba rename phram -> tftpboot and flash.scr to boot.scr 2023-03-02 15:11:12 +00:00
Daniel Barlow
adc198b3af WIP push to see what passes 2023-03-01 22:24:58 +00:00
Daniel Barlow
41ff5a1fe6 move FW_LOADER* config to modules/base 2023-03-01 18:16:01 +00:00
Daniel Barlow
59ce03630a consistent ownership/permissions for /run/service-state/** 2023-02-25 22:53:06 +00:00
Daniel Barlow
690cedf00d better type for config.groups 
instead of an attrset of anything, specify the expected
structure of each value
 2023-02-25 20:33:18 +00:00
Daniel Barlow
751920c8fc qemu: switch to building wireless as kernel modules 
This is a hefty change

* add support for kernel backports project
* build wireless stack/drivers as modules from a backported kernel
* create a service to load/unload the modules
 2023-02-22 18:41:41 +00:00
Daniel Barlow
e89fcfbf09 collect "device" options into an attrset 2023-02-22 18:31:46 +00:00
Daniel Barlow
4faf529dc3 define kernel MODULE_SIG everywhere 2023-02-22 18:20:56 +00:00
Daniel Barlow
817c3793d4 move dts config from kernel to boot 
The kernel does not need to know about the DTS. I am prepared
to be very slightly injured on this hill.
 2023-02-18 15:13:19 +00:00
Daniel Barlow
e84833e52f WIP create VM for pppoe and tftpd 2023-02-15 22:06:28 +00:00
Daniel Barlow
dd8c8edd9c rewrite phram boot to use correct sizes and offsets 2023-02-15 22:06:28 +00:00
Daniel Barlow
1a08aaad01 move outputs into a module 2023-02-10 23:10:44 +00:00
Daniel Barlow
0a06319d0c make loadAddress and entryPoint device configuration 
... already having second thoughts about loadAddress
 2023-02-10 18:20:01 +00:00
Daniel Barlow
8cead61740 convert devices from overlay to module 
this makes it possible for devices to stash things in
`config` (e.g. pathname to DTS) that can later be overwritten
(even by the end user)
 2023-02-10 17:54:33 +00:00
Daniel Barlow
eaf90df56c per-device dts 2023-02-06 23:19:35 +00:00
Daniel Barlow
76243d306c remove checkedConfig, check all the config 2022-10-19 22:09:38 +01:00
Daniel Barlow
0a46ba7fc3 move some wifi-related comments into wlan module 2022-10-19 17:36:31 +01:00
Daniel Barlow
3ef30056c4 trim down the qemu kernel config 
just retain the options we need to pass the tests
 2022-10-18 22:28:07 +01:00
Daniel Barlow
c6ed5d6f2d add ipv4/v6 to base kernel config 2022-10-18 18:56:29 +01:00
Daniel Barlow
026932a745 add unix-domain socket support 
this is a curious config option to default to "n", I think
 2022-10-18 15:48:37 +01:00
Daniel Barlow
7d1c85f680 kernel: enlarge offset to rootfs, disable sysfs devlink 
the ag71xx driver doesn't probe with fw_devlink enabled
 2022-10-15 16:11:40 +01:00
Daniel Barlow
70fa328574 support out-of-tree module builds in vmlinux derivation 
run "make modules_prepare" to create scripts/modules.lds
 2022-10-09 09:55:30 +01:00
Daniel Barlow
fe7080e75c kconfig reqd for tmpfs mount, getty baud rate to = gl-ar750 u-boot 2022-10-07 23:26:24 +01:00
Daniel Barlow
5feda1a1e6 add 'phram' param for tftp boot without flashing 2022-10-07 00:24:35 +01:00
Daniel Barlow
58c287ef6a add config option for kernel commmand line 2022-10-07 00:21:04 +01:00
Daniel Barlow
2f3072d7d5 enable /proc/config.gz 
previous attempt hadn't noticed that it has a missing dependency
 2022-10-05 21:50:10 +01:00
Daniel Barlow
f9626d00f4 generate probably-non-functional firmware image for gl-ar750 2022-10-03 22:28:15 +01:00
Daniel Barlow
0ed97a5232 support /proc/config.gz 2022-10-02 10:04:36 +01:00
Daniel Barlow
1aa9f8d61f add s6 package for logfile timestamp decoder s6-tai64nlocal 2022-10-02 10:04:35 +01:00
Daniel Barlow
6f23a45696 configuration for users and groups 2022-09-28 21:31:15 +01:00
Daniel Barlow
5d10a9e760 rename config.environment as config.filesystem 2022-09-27 16:48:17 +01:00
Daniel Barlow
696bbe6521 rename systemPackages as defaultProfile.packages 
it doesn't work the same way as in nixos, so don't name it the same way
 2022-09-27 16:47:42 +01:00
Daniel Barlow
e40a91fca0 move all remaining pseudofiles to base module 2022-09-27 14:06:07 +01:00
Daniel Barlow
797aa30c47 make s6-init-files into a module 2022-09-27 10:19:44 +01:00
Daniel Barlow
85f7f7293d add bin/init to s6-rc module 
... which suggests it could be better named; init is from
s6-linux-init not s6-rc
 2022-09-26 21:11:07 +01:00
Daniel Barlow
4c89e9aee6 add passwd and group in environment.etc 2022-09-26 21:02:10 +01:00
Daniel Barlow
a427b9da5e move s6-rc db creation to a module 2022-09-26 20:59:56 +01:00
Daniel Barlow
bd6cbd373f add config environment.etc which gets converted to pseudofiles 2022-09-26 20:46:28 +01:00
Daniel Barlow
09a9dba963 export "dir" and "symlink" from pseudofiles package 2022-09-26 18:27:43 +01:00
Daniel Barlow
f0024dcac5 check type of kernel config attrsets 2022-09-26 12:11:26 +01:00
Daniel Barlow
9902d4052b add a type definiton for s6-rc modules 2022-09-26 11:46:09 +01:00
Daniel Barlow
0c25983c0b fix kconfig override 
the default kconfig should be in a config stanza, not in the
default attr of the options stanza, otherwise it gets overridden
completely instead of merged
 2022-09-25 13:17:21 +01:00
Daniel Barlow
c6e56b1637 merge-modules accepts >1 module 2022-09-25 11:52:02 +01:00