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100 Commits

Author SHA1 Message Date
Daniel Barlow b6e72504d6 ipv6 default route 
needs to specify the ppp0 *peer* address not the local address
 2023-06-30 10:17:33 +01:00
Daniel Barlow 447f068569 partly support getting IPv6 addresses 
- gets interface id from ppp
- runs odhcpc to get RA and prefix delegation
- doesn't do anything useful with the data yet
 2023-05-24 23:01:50 +01:00
Daniel Barlow bc27f121d9 /etc/ashrc for interactive non-login shells 2023-05-21 17:08:32 +01:00
Daniel Barlow a48d51ffdc keep dropbear host keys in /persist if it exists 2023-05-21 12:01:42 +01:00
Daniel Barlow 68ab6faeb3 write etc/nix-store-paths in systemConfiguration 2023-05-19 23:57:50 +01:00
Daniel Barlow b0a0fdcfcc add "standard" module, which includes flashimage kexec & jffs2 
most systems need most of these, so it makes writing the docs a
lot easier
 2023-05-17 15:38:22 +01:00
Daniel Barlow 67768004ee erase full flash, it seems to help with jffs2 2023-04-26 22:19:01 +01:00
Daniel Barlow 26c6eac937 delete config boot.tftp.enable as it doesn't enable anything 2023-04-26 22:18:23 +01:00
Daniel Barlow 4cfaed7303 specify root device as /dev/mtdblockn 
the (openwrt?) magic that autodetects it based on mtd labels
won't work with a two-stage boot
 2023-04-26 22:16:15 +01:00
Daniel Barlow 6d6dbe1cbb tftpboot: allow padding image with freeSpaceBytes 
this is useful for writable filesystems so that there's more than
an erase block of space to write into
 2023-04-26 22:15:19 +01:00
Daniel Barlow 2f3b108ef1 tftpboot: set phram erase block size to match hardware 
this is needed for tftp boot with a jffs2 filesystem
 2023-04-23 21:24:37 +01:00
Daniel Barlow 2c4f8b823e remove jffs2boot target 
It's not needed now initramfs is compiled into the kernel.
 2023-04-23 20:56:20 +01:00
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