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modules: add backup module for mtdblock devices

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Signed-off-by: Rosy Song <rosysong@rosinson.com>
This commit is contained in:
Rosy Song 2018-09-08 15:07:01 +08:00
parent 18b4483fe7
commit 9840d310e2
3 changed files with 70 additions and 0 deletions
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18
modules/luci-base/luasrc/sys.lua
View file

@ -70,6 +70,24 @@ function mounts()
return data
end
function mtds()
local data = {}
if 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 s and n then
local d = {}
d.size = tonumber(s, 16)
d.name = n
table.insert(data, d)
end
end
end
return data
end
-- containing the whole environment is returned otherwise this function returns
-- the corresponding string value for the given name or nil if no such variable
-- exists.

18
modules/luci-mod-admin-full/luasrc/controller/admin/system.lua
View file

@ -35,6 +35,7 @@ function index()
entry({"admin", "system", "flashops"}, call("action_flashops"), _("Backup / Flash Firmware"), 70)
entry({"admin", "system", "flashops", "reset"}, post("action_reset"))
entry({"admin", "system", "flashops", "backup"}, post("action_backup"))
entry({"admin", "system", "flashops", "backupmtdblock"}, post("action_backupmtdblock"))
entry({"admin", "system", "flashops", "backupfiles"}, form("admin_system/backupfiles"))
-- call() instead of post() due to upload handling!
@ -318,6 +319,23 @@ function action_backup()
luci.ltn12.pump.all(reader, luci.http.write)
end
function action_backupmtdblock()
local http = require "luci.http"
local mv = http.formvalue("mtdblockname")
local m, s, n = mv:match('^([^%s]+)/([^%s]+)/([^%s]+)')
local reader = ltn12_popen("dd if=/dev/mtd%s conv=fsync,notrunc 2>/dev/null" % n)
luci.http.header(
'Content-Disposition', 'attachment; filename="backup-%s-%s-%s.bin"' %{
luci.sys.hostname(), m,
os.date("%Y-%m-%d")
})
luci.http.prepare_content("application/octet-stream")
luci.ltn12.pump.all(reader, luci.http.write)
end
function action_restore()
local fs = require "nixio.fs"
local http = require "luci.http"

34
modules/luci-mod-admin-full/luasrc/view/admin_system/flashops.htm
View file

@ -59,6 +59,40 @@
<div class="cbi-section-error"><%:The backup archive does not appear to be a valid gzip file.%></div>
<% end %>
</div>
<% local mtds = require("luci.sys").mtds(); if #mtds > 0 then -%>
<h3><%:Save mtdblock contents%></h3>
<div class="cbi-section-descr"><%:Click "Save mtdblock" to download specified mtdblock file. (NOTE: THIS FEATURE IS FOR PROFESSIONALS! )%></div>
<div class="cbi-section-node">
<form class="inline" method="post" action="<%=url('admin/system/flashops/backupmtdblock')%>">
<input type="hidden" name="token" value="<%=token%>" />
<div class="cbi-value">
<label class="cbi-value-title" for="mtdblockname"><%:Choose mtdblock%></label>
<div class="cbi-value-field">
<select class="cbi-input-select" data-update="change" name="mtdblockname" id="mtdblockname">
<% for i, key in ipairs(mtds) do
if key and key.name ~= "rootfs_data" then -%>
<option<%=
attr("id", "mtdblockname-" .. key.name) ..
attr("value", key.name .. '/'.. key.size .. '/' .. i - 1) ..
attr("data-index", i) ..
ifattr(key.name == "linux" or key.name == "firmware", "selected", "selected")
%>><%=pcdata(key.name)%></option>
<% end
end -%>
</select>
</div>
</div>
<div class="cbi-value cbi-value-last<% if reset_avail then %> cbi-value-error<% end %>">
<label class="cbi-value-title" for="image"><%:Download mtdblock%></label>
<div class="cbi-value-field">
<input type="submit" class="cbi-button cbi-button-action important" value="<%:Save mtdblock%>" />
</div>
</div>
</form>
</div>
<% end %>
</div>
<div class="cbi-section">