blob: 33862b0965cc20658434290ae45ffc4927ecdc4b (
plain) (
blame)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
|
{ config, lib, pkgs, ... }:
with lib;
let
cfg = config.boot.initrd.network;
udhcpcScript = pkgs.writeScript "udhcp-script"
''
#! /bin/sh
if [ "$1" = bound ]; then
ip address add "$ip/$mask" dev "$interface"
if [ -n "$router" ]; then
ip route add default via "$router" dev "$interface"
fi
if [ -n "$dns" ]; then
rm -f /etc/resolv.conf
for i in $dns; do
echo "nameserver $dns" >> /etc/resolv.conf
done
fi
fi
'';
udhcpcArgs = toString cfg.udhcpc.extraArgs;
in
{
options = {
boot.initrd.network.enable = mkOption {
type = types.bool;
default = false;
description = ''
Add network connectivity support to initrd. The network may be
configured using the <literal>ip</literal> kernel parameter,
as described in <link
xlink:href="https://www.kernel.org/doc/Documentation/filesystems/nfs/nfsroot.txt">the
kernel documentation</link>. Otherwise, if
<option>networking.useDHCP</option> is enabled, an IP address
is acquired using DHCP.
You should add the module(s) required for your network card to
boot.initrd.availableKernelModules. lspci -v -s <ethernet controller>
will tell you which.
'';
};
boot.initrd.network.udhcpc.extraArgs = mkOption {
default = [];
type = types.listOf types.str;
description = ''
Additional command-line arguments passed verbatim to udhcpc if
<option>boot.initrd.network.enable</option> and <option>networking.useDHCP</option>
are enabled.
'';
};
boot.initrd.network.postCommands = mkOption {
default = "";
type = types.lines;
description = ''
Shell commands to be executed after stage 1 of the
boot has initialised the network.
'';
};
};
config = mkIf cfg.enable {
boot.initrd.kernelModules = [ "af_packet" ];
boot.initrd.extraUtilsCommands = ''
copy_bin_and_libs ${pkgs.mkinitcpio-nfs-utils}/bin/ipconfig
'';
boot.initrd.preLVMCommands = mkBefore (
# Search for interface definitions in command line.
''
for o in $(cat /proc/cmdline); do
case $o in
ip=*)
ipconfig $o && hasNetwork=1
;;
esac
done
''
# Otherwise, use DHCP.
+ optionalString config.networking.useDHCP ''
if [ -z "$hasNetwork" ]; then
# Bring up all interfaces.
for iface in $(cd /sys/class/net && ls); do
echo "bringing up network interface $iface..."
ip link set "$iface" up
done
# Acquire a DHCP lease.
echo "acquiring IP address via DHCP..."
udhcpc --quit --now --script ${udhcpcScript} ${udhcpcArgs} && hasNetwork=1
fi
''
+ ''
if [ -n "$hasNetwork" ]; then
echo "networking is up!"
${cfg.postCommands}
fi
'');
};
}
|