Root/package/base-files/files/sbin/sysupgrade

1#!/bin/sh
2. /etc/functions.sh
3
4# initialize defaults
5RAMFS_COPY_BIN="" # extra programs for temporary ramfs root
6RAMFS_COPY_DATA="" # extra data files
7export INTERACTIVE=0
8export VERBOSE=1
9export SAVE_CONFIG=1
10export DELAY=
11export CONF_IMAGE=
12# parse options
13while [ -n "$1" ]; do
14    case "$1" in
15        -i) export INTERACTIVE=1;;
16        -d) export DELAY="$2"; shift;;
17        -v) export VERBOSE="$(($VERBOSE + 1))";;
18        -q) export VERBOSE="$(($VERBOSE - 1))";;
19        -n) export SAVE_CONFIG=0;;
20        -f) export CONF_IMAGE="$2"; shift;;
21        -*)
22            echo "Invalid option: $1"
23            exit 1
24        ;;
25        *) break;;
26    esac
27    shift;
28done
29
30export CONFFILES=/tmp/sysupgrade.conffiles
31export CONF_TAR=/tmp/sysupgrade.tgz
32
33export ARGV="$*"
34export ARGC="$#"
35
36[ -z "$ARGV" ] && {
37    cat <<EOF
38Usage: $0 [options] <image file or URL>
39
40Options:
41    -d <delay> add a delay before rebooting
42    -f <config> restore configuration from .tar.gz (file or url)
43    -i interactive mode
44    -n do not save configuration over reflash
45    -q less verbose
46    -v more verbose
47
48EOF
49    exit 1
50}
51
52add_uci_conffiles() {
53    local file="$1"
54    find /etc/config /etc/passwd /etc/group /etc/dropbear \
55        /etc/firewall.user /etc/rc.local -type f > "$file"
56    return 0
57}
58
59# hooks
60sysupgrade_image_check="platform_check_image"
61sysupgrade_init_conffiles="add_uci_conffiles"
62
63include /lib/upgrade
64
65do_save_conffiles() {
66    [ -z "$(rootfs_type)" ] && {
67        echo "Cannot save config while running from ramdisk."
68        ask_bool 0 "Abort" && exit
69        return 0
70    }
71    run_hooks "$CONFFILES" $sysupgrade_init_conffiles
72    ask_bool 0 "Edit config file list" && vi "$CONFFILES"
73
74    v "Saving config files..."
75    [ "$VERBOSE" -gt 1 ] && TAR_V="v" || TAR_V=""
76    tar c${TAR_V}zf "$CONF_TAR" -T "$CONFFILES" 2>/dev/null
77}
78
79type platform_check_image >/dev/null 2>/dev/null || {
80    echo "Firmware upgrade is not implemented for this platform."
81    exit 1
82}
83
84for check in $sysupgrade_image_check; do
85    ( eval "$check \"\$ARGV\"" ) || {
86        echo "Image check '$check' failed."
87        exit 1
88    }
89done
90
91if [ -n "$CONF_IMAGE" ]; then
92    case "$(get_magic_word $CONF_IMAGE cat)" in
93        # .gz files
94        1f8b) ;;
95        *)
96            echo "Invalid config file. Please use only .tar.gz files"
97            exit 1
98        ;;
99    esac
100    get_image "$CONF_IMAGE" "cat" > "$CONF_TAR"
101    export SAVE_CONFIG=1
102elif ask_bool $SAVE_CONFIG "Keep config files over reflash"; then
103    do_save_conffiles
104    export SAVE_CONFIG=1
105else
106    export SAVE_CONFIG=0
107fi
108run_hooks "" $sysupgrade_pre_upgrade
109
110if [ -n "$(rootfs_type)" ]; then
111    v "Switching to ramdisk..."
112    run_ramfs '. /etc/functions.sh; include /lib/upgrade; do_upgrade'
113else
114    do_upgrade
115fi
116

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