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
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
|
-- Copyright 2008 Steven Barth <steven@midlink.org>
-- Copyright 2008 Jo-Philipp Wich <xm@leipzig.freifunk.net>
-- Licensed to the public under the Apache License 2.0.
module("luci.controller.mini.system", package.seeall)
function index()
entry({"mini", "system"}, alias("mini", "system", "index"), _("System"), 40).index = true
entry({"mini", "system", "index"}, cbi("mini/system", {autoapply=true}), _("General"), 1)
entry({"mini", "system", "passwd"}, form("mini/passwd"), _("Admin Password"), 10)
entry({"mini", "system", "backup"}, call("action_backup"), _("Backup / Restore"), 80)
entry({"mini", "system", "upgrade"}, call("action_upgrade"), _("Flash Firmware"), 90)
entry({"mini", "system", "reboot"}, call("action_reboot"), _("Reboot"), 100)
end
function action_backup()
local reset_avail = os.execute([[grep '"rootfs_data"' /proc/mtd >/dev/null 2>&1]]) == 0
local restore_cmd = "gunzip | tar -xC/ >/dev/null 2>&1"
local backup_cmd = "tar -c %s | gzip 2>/dev/null"
local restore_fpi
luci.http.setfilehandler(
function(meta, chunk, eof)
if not restore_fpi then
restore_fpi = io.popen(restore_cmd, "w")
end
if chunk then
restore_fpi:write(chunk)
end
if eof then
restore_fpi:close()
end
end
)
local upload = luci.http.formvalue("archive")
local backup = luci.http.formvalue("backup")
local reset = reset_avail and luci.http.formvalue("reset")
if upload and #upload > 0 then
luci.template.render("mini/applyreboot")
luci.sys.reboot()
elseif backup then
local reader = ltn12_popen(backup_cmd:format(_keep_pattern()))
luci.http.header('Content-Disposition', 'attachment; filename="backup-%s-%s.tar.gz"' % {
luci.sys.hostname(), os.date("%Y-%m-%d")})
luci.http.prepare_content("application/x-targz")
luci.ltn12.pump.all(reader, luci.http.write)
elseif reset then
luci.template.render("mini/applyreboot")
luci.util.exec("mtd -r erase rootfs_data")
else
luci.template.render("mini/backup", {reset_avail = reset_avail})
end
end
function action_reboot()
local reboot = luci.http.formvalue("reboot")
luci.template.render("mini/reboot", {reboot=reboot})
if reboot then
luci.sys.reboot()
end
end
function action_upgrade()
require("luci.model.uci")
local tmpfile = "/tmp/firmware.img"
local function image_supported()
-- XXX: yay...
return ( 0 == os.execute(
". /lib/functions.sh; " ..
"include /lib/upgrade; " ..
"platform_check_image %q >/dev/null"
% tmpfile
) )
end
local function image_checksum()
return (luci.sys.exec("md5sum %q" % tmpfile):match("^([^%s]+)"))
end
local function storage_size()
local size = 0
if nixio.fs.access("/proc/mtd") then
for l in io.lines("/proc/mtd") do
local d, s, e, n = l:match('^([^%s]+)%s+([^%s]+)%s+([^%s]+)%s+"([^%s]+)"')
if n == "linux" then
size = tonumber(s, 16)
break
end
end
elseif nixio.fs.access("/proc/partitions") then
for l in io.lines("/proc/partitions") do
local x, y, b, n = l:match('^%s*(%d+)%s+(%d+)%s+([^%s]+)%s+([^%s]+)')
if b and n and not n:match('[0-9]') then
size = tonumber(b) * 1024
break
end
end
end
return size
end
-- Install upload handler
local file
luci.http.setfilehandler(
function(meta, chunk, eof)
if not nixio.fs.access(tmpfile) and not file and chunk and #chunk > 0 then
file = io.open(tmpfile, "w")
end
if file and chunk then
file:write(chunk)
end
if file and eof then
file:close()
end
end
)
-- Determine state
local keep_avail = true
local step = tonumber(luci.http.formvalue("step") or 1)
local has_image = nixio.fs.access(tmpfile)
local has_support = image_supported()
local has_platform = nixio.fs.access("/lib/upgrade/platform.sh")
local has_upload = luci.http.formvalue("image")
-- This does the actual flashing which is invoked inside an iframe
-- so don't produce meaningful errors here because the the
-- previous pages should arrange the stuff as required.
if step == 4 then
if has_platform and has_image and has_support then
-- Mimetype text/plain
luci.http.prepare_content("text/plain")
luci.http.write("Starting luci-flash...\n")
-- Now invoke sysupgrade
local keepcfg = keep_avail and luci.http.formvalue("keepcfg") == "1"
local flash = ltn12_popen("/sbin/luci-flash %s %q" %{
keepcfg and "-k %q" % _keep_pattern() or "", tmpfile
})
luci.ltn12.pump.all(flash, luci.http.write)
-- Make sure the device is rebooted
luci.sys.reboot()
end
--
-- This is step 1-3, which does the user interaction and
-- image upload.
--
-- Step 1: file upload, error on unsupported image format
elseif not has_image or not has_support or step == 1 then
-- If there is an image but user has requested step 1
-- or type is not supported, then remove it.
if has_image then
nixio.fs.unlink(tmpfile)
end
luci.template.render("mini/upgrade", {
step=1,
bad_image=(has_image and not has_support or false),
keepavail=keep_avail,
supported=has_platform
} )
-- Step 2: present uploaded file, show checksum, confirmation
elseif step == 2 then
luci.template.render("mini/upgrade", {
step=2,
checksum=image_checksum(),
filesize=nixio.fs.stat(tmpfile).size,
flashsize=storage_size(),
keepconfig=(keep_avail and luci.http.formvalue("keepcfg") == "1")
} )
-- Step 3: load iframe which calls the actual flash procedure
elseif step == 3 then
luci.template.render("mini/upgrade", {
step=3,
keepconfig=(keep_avail and luci.http.formvalue("keepcfg") == "1")
} )
end
end
function _keep_pattern()
local kpattern = ""
local files = luci.model.uci.cursor():get_all("luci", "flash_keep")
if files then
kpattern = ""
for k, v in pairs(files) do
if k:sub(1,1) ~= "." and nixio.fs.glob(v)() then
kpattern = kpattern .. " " .. v
end
end
end
return kpattern
end
function ltn12_popen(command)
local fdi, fdo = nixio.pipe()
local pid = nixio.fork()
if pid > 0 then
fdo:close()
local close
return function()
local buffer = fdi:read(2048)
local wpid, stat = nixio.waitpid(pid, "nohang")
if not close and wpid and stat == "exited" then
close = true
end
if buffer and #buffer > 0 then
return buffer
elseif close then
fdi:close()
return nil
end
end
elseif pid == 0 then
nixio.dup(fdo, nixio.stdout)
fdi:close()
fdo:close()
nixio.exec("/bin/sh", "-c", command)
end
end
|
