It's necessary to be able to specify the length
for MAC addresses that are stored in flash, for example,
in a case where it is stored without any delimiter.
Let both offset and length have default values.
Add a sanity check related to partition size.
Also, clean up syntax and unnecessary lines.
Signed-off-by: Michael Pratt <mcpratt@pm.me>
This is a MT7621-based device with 128MB NAND flash, 256MB RAM, and a USB port.
The board has headers to attach console. In order for them to work two solder
bridges near those pads need to be made.
The defice has the following partition table:
```
0x000000000000-0x000000080000 : "u-boot"
0x000000080000-0x000000100000 : "u-boot-env"
0x000000100000-0x000000140000 : "factory"
0x000000140000-0x000007e00000 : "firmware"
0x000007e00000-0x000008000000 : "panic-ops"
```
`firmware` partition contains UBI volumes. Unfortunately I accidentally wiped
partition and I no longer have access to it.
`firmware` partition contains 'secondary' U-Boot which is run by 'first' u-boot.
It also contains various configuration partitions that include device info and
MAC address. There also seems to be 'primary' and 'backup' set of 'main' volumes.
U-boot has `mtkupgrade` command that just overrides data on firmware partitions.
Firmware file provided by TP-Link cannot be used with that command.
U-boot also has 'recovery' http server. Unfortunately I was not able to make it
work with manufacturer's firmware.
Manufacturer's firmware essentially contains multiple UBI volumes along with
'partition table'. Unfortunately I no longer can properly run manufacturer's
firmware so I cannot at the moment try to a support for building 'factory' images.
This patch adds support for initramfs image as well as sysupgrade image.
This seems to be pretty standard MT7621 board otherwise.
Things that work:
* network
* leds
* usb
* factory MAC detection
Signed-off-by: Nikolay Martynov <mar.kolya@gmail.com>
Ensure the MAC address for all NanoPi R1 boards is assigned uniquely for
each board.
The vendor ships the device in two variants; one with and one without
eMMC; but both without static mac-addresses.
In order to assign both board types unique MAC addresses, fall back on
the same method used for the NanoPi R2S and R4S in case the EEPROM
chip is not present by generating the board MAC from the SD card CID.
[0] https://wiki.friendlyelec.com/wiki/index.php/NanoPi_R1#Hardware_Spec
Similar too and based on:
commit b5675f500d ("rockchip: ensure NanoPi R4S has unique MAC address")
Co-authored-by: David Bauer <mail@david-bauer.net>
Signed-off-by: Jan-Niklas Burfeind <git@aiyionpri.me>
These will be used to give WLAN PHYs a specific name based on path specified
in board.json. The platform board.d script can assign a specific order based
on available slots (PCIe slots, WMAC device) and device tree configuration.
This helps with maintaining config compatibility in case the device path
changes due to kernel upgrades.
Signed-off-by: Felix Fietkau <nbd@nbd.name>
The currently used shell expansion doesn't seem to exist [0] and also
does not work. This surely was not intended, so lets allow default
naming to actually work.
[0]: https://pubs.opengroup.org/onlinepubs/9699919799/utilities/V3_chap02.html
Fixes: be09c5a3cd ("base-files: add board.d support for bridge device")
Signed-off-by: Olliver Schinagl <oliver@schinagl.nl>
Add support for TP-Link Deco S4 wifi router
The label refers to the device as S4R and the TP-Link firmware
site calls it the Deco S4 v2. (There does not appear to be a v1)
Hardware (and FCC id) are identical to the Deco M4R v2 but the
flash layout is ordered differently and the OEM firmware encrypts
some config parameters (including the label mac address) in flash
In order to set the encrypted mac address, the wlan's caldata
node is removed from the DTS so the mac can be decrypted with
the help of the uencrypt tool and patched into the wlan fw
via hotplug
Specifications:
SoC: QCA9563-AL3A
RAM: Zentel A3R1GE40JBF
Wireless 2.4GHz: QCA9563-AL3A (main SoC)
Wireless 5GHz: QCA9886
Ethernet Switch: QCA8337N-AL3C
Flash: 16 MB SPI NOR
UART serial access (115200N1) on board via solder pads:
RX = TP1 pad
TX = TP2 pad
GND = C201 (pad nearest board edge)
The device's bootloader and web gui will only accept images that
were signed using TP-Link's RSA key, however a memory safety bug
in the bootloader can be leveraged to install openwrt without
accessing the serial console. See developer forum S4 support page
for link to a "firmware" file that starts a tftp client, or you
may generate one on your own like this:
```
python - > deco_s4_faux_fw_tftp.bin <<EOF
import sys
from struct import pack
b = pack('>I', 0x00008000) + b'X'*16 + b"fw-type:" \
+ b'x'*256 + b"S000S001S002" + pack('>I', 0x80060200) \
b += b"\x00"*(0x200-len(b)) \
+ pack(">33I", *[0x3c0887fc, 0x35083ddc, 0xad000000, 0x24050000,
0x3c048006, 0x348402a0, 0x3c1987f9, 0x373947f4,
0x0320f809, 0x00000000, 0x24050000, 0x3c048006,
0x348402d0, 0x3c1987f9, 0x373947f4, 0x0320f809,
0x00000000, 0x24050000, 0x3c048006, 0x34840300,
0x3c1987f9, 0x373947f4, 0x0320f809, 0x00000000,
0x24050000, 0x3c048006, 0x34840400, 0x3c1987f9,
0x373947f4, 0x0320f809, 0x00000000, 0x1000fff1,
0x00000000])
b += b"\xff"*(0x2A0-len(b)) + b"setenv serverip 192.168.0.2\x00"
b += b"\xff"*(0x2D0-len(b)) + b"setenv ipaddr 192.168.0.1\x00"
b += b"\xff"*(0x300-len(b)) + b"tftpboot 0x81000000 initramfs-kernel.bin\x00"
b += b"\xff"*(0x400-len(b)) + b"bootm 0x81000000\x00"
b += b"\xff"*(0x8000-len(b))
sys.stdout.buffer.write(b)
EOF
```
Installation:
1. Run tftp server on pc with static ip 192.168.0.2
2. Place openwrt "initramfs-kernel.bin" image in tftp root dir
3. Connect pc to router ethernet port1
4. While holding in reset button on bottom of router, power on router
5. From pc access router webgui at http://192.168.0.1
6. Upload deco_s4_faux_fw_tftp.bin
7. Router will load and execture in-memory openwrt
8. Switch pc back to dhcp or static 192.168.1.x
9. Flash openwrt sysupgrade image via luci/ssh at 192.168.1.1
Revert to stock:
Press and hold reset button while powering device to start the
bootloader's recovery mode, where stock firmware can be uploaded
via web gui at 192.168.0.1
Please note that one additional non-github commits is also needed:
firmware-utils: add tplink-safeloader support for Deco S4
Signed-off-by: Nick French <nickfrench@gmail.com>
Some platforms lack an established way to name netdevs; for example,
on x86, PCIe-based ethernet interfaces will be named starting from
eth0 in the order they are probed. This is a problem for many devices
supported explicitly by OpenWrt which have hard-wired, standalone or
on-CPU NICs not supported by DSA (which is usually used to rename the
ports based on their ostensible function).
To fix this, add a mapping between ethernet device name and sysfs
device path to board.json; this allows us to configure ethernet device
names we know about for a given board so that they correspond to
external labeling.
Signed-off-by: Martin Kennedy <hurricos@gmail.com>
Some Arcadyan devices (e.g. MTS WG430223) keep their config in encrypted
mtd. This adds mtd_get_mac_encrypted_arcadyan() function to get the MAC
address from the encrypted partition. Function uses uencrypt utility for
decryption (and openssl if the uencrypt wasn't found).
Signed-off-by: Mikhail Zhilkin <csharper2005@gmail.com>
This patch adds support for creation heartbeat led trigger with,
for example, this command:
ucidef_set_led_heartbeat "..." "..." "..."
from /etc/board.d/01_leds.
Signed-off-by: Alexey Smirnov <s.alexey@gmail.com>
Added minimal mmc support for helper functions:
- find_mmc_part: Look for a given partition name. Returns the
coresponding partition path
- caldata_extract_mmc: Look for a given partition name and then
extracts the calibration data
- mmc_get_mac_binary: Returns the mac address from a given partition
name and offset
Signed-off-by: Davide Fioravanti <pantanastyle@gmail.com>
Signed-off-by: Robert Marko <robimarko@gmail.com>
[replace dd with caldata_dd, moved sysupgrade mmc to orbi]
Signed-off-by: Christian Lamparter <chunkeey@gmail.com>
Replace "ifname" with "device" as netifd has been recently patches to
used the later one. It's more clear and accurate.
Signed-off-by: Rafał Miłecki <rafal@milecki.pl>
Bridge aggregates multiple ports so use a more accurate name ("ports")
and format (array) for storing them in board.json.
Example:
"network": {
"lan": {
"ports": [
"lan1",
"lan2",
"lan3",
"lan4"
],
"protocol": "static"
},
"wan": {
"ifname": "wan",
"protocol": "dhcp"
}
}
Signed-off-by: Rafał Miłecki <rafal@milecki.pl>
This drops the shebang from another bunch of files in various /lib
folders, as these are sourced and the shebang is useless.
Fix execute bit in one case, too.
This should cover almost all trivial cases now, i.e. where /lib is
actually used for library files.
Signed-off-by: Adrian Schmutzler <freifunk@adrianschmutzler.de>
This dd flag ensures that the requested size
is retrieved from pipes or special filesystems (if available).
Without this flag, on multi-core systems,
Piped or special filesystem data can be truncated
when a size greater than PIPE_BUF is requested.
Fixes: FS#3494
Fixes: 7557e7f ("package/base-files: caldata: work around dd's
limitation")
Cc: Thibaut VARÈNE <hacks@slashdirt.org>
Signed-off-by: John Thomson <git@johnthomson.fastmail.com.au>
Add code for setting mac addresses inside board.json and rendering
them out to uci. On switches we want to have a unique MAC on each port.
With 48 port switches that would require 48 device sections in
/etc/config/network. Doing so via board.json is easier.
Signed-off-by: John Crispin <john@phrozen.org>
Latest netifd allows us to setup network bridges with implicit vlan
tagging. For this to work, we need to setup several additional uci
sections. This feature is particularly usefull for DSA tupe devices.
Add board.d and uci-defaults support for generating the sections.
Signed-off-by: John Crispin <john@phrozen.org>
Without the model-based devicename for LEDs, there are still cases
where a third component is required, typically when it refers to
internal "devices" like phys etc. An example are the following two
found on ramips:
- rt2800soc-phy0::radio
- rt2800pci-phy0::radio
So far, the rt2800*-phy: prefixes would be removed by the devicename
removal ("migration") script, and the configuration for these LEDs
would be broken.
To address this, this patch allows to add arguments to a call of
remove_devicename_leds, which will be compared against the first
part of the LED names/labels, and then be ignored by the routine,
and thus not removed:
remove_devicename_leds "rt2800soc-phy0" "rt2800pci-phy0"
This mechanism is supposed to be used when a "devicename" applies
to several devices. If only a single device is affected, it might
be more effective to use a case statement and exclude the device
from migration by that entirely.
Signed-off-by: Adrian Schmutzler <freifunk@adrianschmutzler.de>
Currently, we request LED labels in OpenWrt to follow the scheme
modelname:color:function
However, specifying the modelname at the beginning is actually
entirely useless for the devices we support in OpenWrt. In patches
subsequent to this one, we will thus remove the modelname from
the label definitions on various targets.
To migrate the existing definitions from older installations,
a migration script needs to be deployed that does
modelname:color:function -> color:function
e.g.
dir-789:green:status -> green:status
This patch introduces two functions that do exactly that:
For each entry in /etc/config/system, the routine will check whether
two (or more) colons are present, and then remove everything up to
(and including) the first colon.
For now, this will be applied unconditionally, i.e. if the function
is called for a device, all labels will be cut like this.
However, for a future case of mixed three-part and two-part labels,
it should not be too hard to provide a function argument with
exceptions to the removal.
Signed-off-by: Adrian Schmutzler <freifunk@adrianschmutzler.de>
The LED's "label" property has been deprecated in upstream by:
|commit c5d18dd6b64e09dd6984bda9bdd55160af537a8c
|Author: Jacek Anaszewski <jacek.anaszewski@gmail.com>
|Date: Sun Jun 9 20:19:04 2019 +0200
|
| dt-bindings: leds: Add properties for LED name construction
|
| Introduce dedicated properties for conveying information about
| LED function and color. Mark old "label" property as deprecated.
|
| Additionally function-enumerator property is being provided
| for the cases when neither function nor color can be used
| for LED differentiation.
in order to be somewhat prepared, this patch adds a fallback
as a last resort to make the current led code work by falling
back to the node-name as the "label".
Signed-off-by: Christian Lamparter <chunkeey@gmail.com>
Fix typo in comment.
Signed-off-by: Walter Sonius <walterav1984@gmail.com>
[commit title/message facelift]
Signed-off-by: Adrian Schmutzler <freifunk@adrianschmutzler.de>
We regularly encounter the situation that devices are subject to
changes that will make them incompatible to previous versions.
Removing SUPPORTED_DEVICES will not really be helpful in most of these
cases, as this only helps after a rename.
To solve this situation, this patchset introduces a compatibility
version for devices. To complement the DEVICE_COMPAT_VERSION set
for the image to be flashed, this implements a compat_version on
the device, so it will have something to compare with the image.
The only viable way to achieve this seems to be via board.d files,
i.e. this is technically adding a compat version for the device's
config.
Like for the network setup, this will set up a command
ucidef_set_compat_version to set the compat_version in board.d.
This will then add a string to /etc/board.json, which will be
translated into uci system config by bin/config_generate.
By this, the compat_version, being a version of the config, will
also be exposed to the user.
As with DEVICE_COMPAT_VERSION, missing uci entry will be assumed
as compat_version "1.0", so we only need to add this if a device
needs to be bumped, e.g.
ucidef_set_compat_version "1.1"
Signed-off-by: Adrian Schmutzler <freifunk@adrianschmutzler.de>
This adds a function for generating a valid random MAC address (unset MC
bit / set locally administered bit).
It is necessary for devices which do not have a MAC address programmed
by the manufacturer.
Signed-off-by: David Bauer <mail@david-bauer.net>
Some devices (e.g. Arduino Yun) need bitwise operations during MAC address
setup. This commit adds generalized versions of macaddr_setbit_la(), which
are helpful when manipulating a single bit in a MAC address.
Signed-off-by: Sungbo Eo <mans0n@gorani.run>
Previously, gpio_switch only accepts GPIO pin number as input. Once a
GPIO pin is exported and named by device tree, its pin state cannot be
configured and saved across reboots by UCI.
This patch adds support for named GPIO pins. Thus GPIO pin can be
exported by device tree with active high/low correctly configured,
having human-readable name in /sys/class/gpio/ is also now possible.
More importantly, GPIO pins which are referenced by name will be immune
from pin mapping breakage while unintentional pin number changes are
introduced by kernel or driver updates.
Signed-off-by: Kuan-Yi Li <kyli@abysm.org>
This changes the ide-disk LED trigger to the generic disk-activity as
ide-disk trigger was removed in upstream commit eb25cb9956cc ("leds:
convert IDE trigger to common disk trigger").
Signed-off-by: Thomas Albers <thomas.gameiro@googlemail.com>
[split into separate commit, commit description facelift]
Signed-off-by: Petr Štetiar <ynezz@true.cz>
tl;dr: dd will silently truncate the output if reading from special
files (e.g. sysfs attributes) with a too large bs parameter.
This problem was exposed on some RouterBOARD ipq40xx devices which use a
caldata payload which is larger than PAGE_SIZE, contrary to all other
currently supported RouterBOARD devices: the caldata would fail to
properly load with the current scripts.
Background: dd doesn't seem to correctly handle read() results that
return less than requested data. sysfs attributes have a kernel exchange
buffer which is at most PAGE_SIZE big, so only 1 page can be read() at a
time. In this case, if bs is larger than PAGE_SIZE, dd will silently
truncate blocks to PAGE_SIZE. With the current scripts using bs=<size>
count=1, the data is truncated to PAGE_SIZE as soon as the requested
<size> exceeds this value.
This commit works around this problem by using `cat` in the caldata
routines that can read from a file (routines that read from mtd devices
are untouched). cat correctly handles partial read requests. The output
is then piped to dd with the same parameters as before, to ensure that
the resulting file remains exactly the same.
This is a simple workaround, the downside is that it uses a pipe and one
more executable, and therefore has a larger memory footprint and is
slower. This is deemed acceptable considering these routines are only
used at boot time.
Tested-by: Robert Marko <robimarko@gmail.com>
Signed-off-by: Thibaut VARÈNE <hacks@slashdirt.org>
This will enable platforms to extract caldata to an arbitrary file,
or patch mac in an abitrary file.
Signed-off-by: Thibaut VARÈNE <hacks@slashdirt.org>
The file /lib/functions/system.sh depends on find_mtd_index() and
find_mtd_part() located in /lib/function.sh, so let's source that
file.
Signed-off-by: Adrian Schmutzler <freifunk@adrianschmutzler.de>
For devices without a dedicated 'diag' LED, we use sometimes one of
other LEDs for indicating at least 'boot', 'failsafe' and 'upgrade'
stages. In some cases, at the same time these LEDs have defined default
triggers in DTS using 'linux,default-trigger' property. Current 'diag'
setup removes the trigger and turns off 'boot' LED after bootup.
One of the examples of such device is TP-Link TL-WR841N v14 (ramips)
which uses 'wlan' LED with defined 'linux,default-trigger' for 'diag':
aliases {
led-boot = &led_wlan;
led-failsafe = &led_wlan;
led-upgrade = &led_wlan;
};
[...]
led_wlan: wlan {
label = "tl-wr841n-v14:green:wlan";
gpios = <&gpio1 9 GPIO_ACTIVE_LOW>;
linux,default-trigger = "phy0tpt";
};
This patch extends 'diag.sh' and 'leds.sh' scripts to make sure default
trigger defined in DTS is restored for 'diag' LED which isn't used for
indicating 'running' stage.
Acked-by: Adrian Schmutzler <freifunk@adrianschmutzler.de>
Signed-off-by: Piotr Dymacz <pepe2k@gmail.com>
"[[" is a bash extension for test. As the ash-implementation is
not fully compatible we drop its usage.
Also change to "=" for simple test, which is sufficient. (see d6ac8ca76c)
Signed-off-by: Sven Roederer <devel-sven@geroedel.de>
[split patch, removed shebang]
Signed-off-by: Adrian Schmutzler <freifunk@adrianschmutzler.de>
If a label MAC address is provided for device, system
will rename the hostname with OpenWrt_{eui mac address}.
This helps to distinguish between different devices.
Since it's no good idea to nest json_* functions, this code does
not use get_mac_label directly, but only get_mac_label_dt as
external resource.
Signed-off-by: Rosy Song <rosysong@rosinson.com>
[merged with commit introducing macaddr_geteui, rebased on updated
label MAC address storage, extended commit message]
Signed-off-by: Adrian Schmutzler <freifunk@adrianschmutzler.de>
If set, label MAC address is available from one of two sources,
device tree or board.json. So far, the function get_mac_label
was meant for retrieving the address, while an option in uci
system config was specified only for case 2 (board.json).
The uci config option has several drawbacks:
- it is only used for a fraction of devices (those not in DT)
- label MAC address is a device property, while config implies
user interaction
- label_macaddr option will only be set if /etc/config/system
does not exist (i.e. only for new installations)
Thus, this patch changes the behavior of get_mac_label:
Instead of writing the value in board.json to uci system config
and reading from this location afterwards, get_mac_label now
extracts data from board.json directly. The uci config option
won't be used anymore.
In addition, two utility functions for extraction only from DT
or from board.json are introduced.
Since this is only changing the access to the label MAC address, it
won't interfere with the addresses stored in the code base so far.
Signed-off-by: Adrian Schmutzler <freifunk@adrianschmutzler.de>
Moving a file between tmpfs and other fs is neither
faster nor safer, thus no point in doing it in two steps.
Use new jshn option to write output directly to file.
Originally discussed here:
http://lists.openwrt.org/pipermail/openwrt-devel/2017-December/010127.html
Signed-off-by: Roman Yeryomin <roman@advem.lv>
While all ath10k eeproms have a checksum field, so far two
functions for patching ath10k MAC address have been present (and
been used).
This merges code to provide a single function ath10k_patch_mac
in caldata.sh, having its name in accordance with ath9k functions.
By doing so, correct MAC patching for current and future ath10k
devices should be ensured.
This patch adds checksum adjustments for several targets on
ath79 and lantiq.
Signed-off-by: Adrian Schmutzler <freifunk@adrianschmutzler.de>
This unifies MAC address patch functions and moves them to a
common script. While those were implemented differently for
different targets, they all seem to do the same. The number of
different variants is significantly reduced by this patch.
Signed-off-by: Adrian Schmutzler <freifunk@adrianschmutzler.de>
This moves the almost identical calibration data extraction
functions present multiple times in several targets to a single
library file /lib/functions/caldata.sh.
Functions are renamed with more generic names to merge different
variants that only differ in their names.
Most of the targets used find_mtd_chardev, while some used
find_mtd_part inside the extraction code. To merge them, the more
abundant version with find_mtd_chardev is used in the common code.
Signed-off-by: Adrian Schmutzler <freifunk@adrianschmutzler.de>
[rebase on latest master; add mpc85xx]
Signed-off-by: David Bauer <mail@david-bauer.net>
For many devices, MAC addresses cannot be retrieved via the
device tree alias.
To still provide the label MAC address for those, this implements
a second mechanism that will put the address into uci config.
Note that this stores the actual MAC address, whereas in DTS
we reference the bearing device.
This is based on the work of Rosy Song <rosysong@rosinson.com>
Signed-off-by: Adrian Schmutzler <freifunk@adrianschmutzler.de>
To refer to the MAC address on a device's label, one can
specify the alias label-mac-device in the DTS which should
point to the bearer of the corresponding MAC address.
With the function get_mac_label, the user can retrieve then
retrieve this address and use it as a value that uniquely
identifies his device.
This is severely helpful for several downstream functionalities,
e.g. define MAC addresses of custom netifs or change the SSID to
be easily recognizable.
Signed-off-by: Adrian Schmutzler <freifunk@adrianschmutzler.de>
The actual retrieval of the MAC address in mtd_get_mac_binary_ubi()
is the same as in get_mac_binary(). Thus, use the latter function
in the former to reduce duplicate code.
This will also allow to benefit from the enhanced path check there
and bring mtd_get_mac_binary_ubi() more in line with the similar
mtd_get_mac_binary().
Signed-off-by: Adrian Schmutzler <freifunk@adrianschmutzler.de>
The mtd_get_mac_text helper method did not support hexadecimal offset
values, resulting them to break after 75bfc393ba ("treewide:
convert MAC address location offsets to hexadecimal")
This commit fixes this by evaluating the hexadecimal input,
converting them to decimal.
Signed-off-by: David Bauer <mail@david-bauer.net>
Logic was inverted when changing from string check to file check.
Fix it.
Fixes: 8592602d0a ("base-files: Really check path in get_mac_binary")
Reported-by: Matthias Schiffer <mschiffer@universe-factory.net>
Signed-off-by: Adrian Schmutzler <freifunk@adrianschmutzler.de>
Currently, path argument is only checked for being not empty.
This changes behavior to actually check whether path exists.
Signed-off-by: Adrian Schmutzler <freifunk@adrianschmutzler.de>
This patch adds a missing type property. This fixes
the creation of oneshot and timer led triggers like:
| ucidef_set_led_timer "system" "system" "zhuotk:green:system" "1000" "1000"
from /etc/init.d/01_leds.
Fixes: b06a286a48 ("base-files: cleanup led functions in uci-defaults.sh")
Signed-off-by: Robinson Wu <wurobinson@qq.com>
Signed-off-by: Christian Lamparter <chunkeey@gmail.com>
Commit "generic: ar8216: add mib_poll_interval switch attribute" has
added mib_poll_interval global config option and commit "generic:
ar8216: group MIB counters and use two basic ones only by default" has
added mib_type config option.
So this patch adds ucidef_set_ar8xxx_switch_mib helper function which
would allow configuration of the above mentioned new switch config
options.
Signed-off-by: Petr Štetiar <ynezz@true.cz>
Currently leds migration scripts in ar71xx and lantiq share a lot of
logic and introducing leds migration to another target would mean
copying this code, again. Therefore add common logic to library in
base-files package.
Suggested-by: Petr Štetiar <ynezz@true.cz>
Signed-off-by: Petr Štetiar <ynezz@true.cz>
Signed-off-by: Tomasz Maciej Nowak <tomek_n@o2.pl>
The swconfig switch led driver has the ability to switch
between a "link, rx and/or tx" mode. However, this feature
was not implemented in uci, the led init script and
config_generate.
This patch adds a seventh parameter to the
ucidef_set_led_switch() function. The accepted values for
this parameter are: link, rx and tx.
Any permutations of these three values are supported, as
long as they are properly encased with quotes.
If the parameter is not specified it will default to "all"
(link rx tx).
Signed-off-by: Christian Lamparter <chunkeey@gmail.com>
