summaryrefslogtreecommitdiff
path: root/package/base-files/files/sbin/sysupgrade
blob: 1210e6e509fdf6d64c05da030b2b5c7b303fb996 (plain)
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
120
121
122
123
124
125
126
127
128
129
130
131
132
133
#!/bin/sh
. /etc/functions.sh

# initialize defaults
RAMFS_COPY_BIN=""	# extra programs for temporary ramfs root
RAMFS_COPY_DATA=""	# extra data files
export INTERACTIVE=0
export VERBOSE=1
export SAVE_CONFIG=1
export SAVE_OVERLAY=0
export DELAY=
export CONF_IMAGE=

# parse options
while [ -n "$1" ]; do 
	case "$1" in
		-i) export INTERACTIVE=1;;
		-d) export DELAY="$2"; shift;;
		-v) export VERBOSE="$(($VERBOSE + 1))";;
		-q) export VERBOSE="$(($VERBOSE - 1))";;
		-n) export SAVE_CONFIG=0;;
		-c) export SAVE_OVERLAY=1;;
		-f) export CONF_IMAGE="$2"; shift;;
		-*)
			echo "Invalid option: $1"
			exit 1
		;;
		*) break;;
	esac
	shift;
done

export CONFFILES=/tmp/sysupgrade.conffiles
export CONF_TAR=/tmp/sysupgrade.tgz

export ARGV="$*"
export ARGC="$#"

[ -z "$ARGV" ] && {
	cat <<EOF
Usage: $0 [options] <image file or URL>

Options:
	-d <delay>   add a delay before rebooting
	-f <config>  restore configuration from .tar.gz (file or url)
	-i           interactive mode
	-c           attempt to preserve all changed files in /etc/
	-n           do not save configuration over reflash
	-q           less verbose
	-v           more verbose

EOF
	exit 1
}

add_uci_conffiles() {
	local file="$1"
	( find /etc/config /etc/passwd /etc/group /etc/dropbear \
		/etc/firewall.user /etc/rc.local -type f;
	  opkg list-changed-conffiles ) | sort -u > "$file"
	return 0
}

add_overlayfiles() {
	local file="$1"
	find /overlay/etc/ -type f | sed \
		-e 's,^/overlay/,/,' \
		-e '\,/META_[a-zA-Z0-9]*$,d' \
		-e '\,/functions.sh$,d' \
		-e '\,/[^/]*-opkg$,d' \
	> "$file"
	return 0
}

# hooks
sysupgrade_image_check="platform_check_image"
[ $SAVE_OVERLAY = 0 -o ! -d /overlay/etc ] && \
	sysupgrade_init_conffiles="add_uci_conffiles" || \
	sysupgrade_init_conffiles="add_overlayfiles"

include /lib/upgrade

do_save_conffiles() {
	[ -z "$(rootfs_type)" ] && {
		echo "Cannot save config while running from ramdisk."
		ask_bool 0 "Abort" && exit
		return 0
	}
	run_hooks "$CONFFILES" $sysupgrade_init_conffiles
	ask_bool 0 "Edit config file list" && vi "$CONFFILES"

	v "Saving config files..."
	[ "$VERBOSE" -gt 1 ] && TAR_V="v" || TAR_V=""
	tar c${TAR_V}zf "$CONF_TAR" -T "$CONFFILES" 2>/dev/null
}

type platform_check_image >/dev/null 2>/dev/null || {
	echo "Firmware upgrade is not implemented for this platform."
	exit 1
}

for check in $sysupgrade_image_check; do
	( eval "$check \"\$ARGV\"" ) || {
		echo "Image check '$check' failed."
		exit 1
	}
done

if [ -n "$CONF_IMAGE" ]; then
	case "$(get_magic_word $CONF_IMAGE cat)" in
		# .gz files
		1f8b) ;;
		*)
			echo "Invalid config file. Please use only .tar.gz files"
			exit 1
		;;
	esac
	get_image "$CONF_IMAGE" "cat" > "$CONF_TAR"
	export SAVE_CONFIG=1
elif ask_bool $SAVE_CONFIG "Keep config files over reflash"; then
	do_save_conffiles
	export SAVE_CONFIG=1
else
	export SAVE_CONFIG=0
fi
run_hooks "" $sysupgrade_pre_upgrade

if [ -n "$(rootfs_type)" ]; then
	v "Switching to ramdisk..."
	run_ramfs '. /etc/functions.sh; include /lib/upgrade; do_upgrade'
else
	do_upgrade
fi