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path: root/net/ieee802154/nl802154.c
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* nl802154: Missing return in nl802154_add_llsec_key()Dan Carpenter2015-10-021-0/+1
| | | | | | | | | | There was a missing return here so it meant that often ieee802154_llsec_parse_key_id() was not called. Fixes: a26c5fd7622d ('nl802154: add support for security layer') Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com> Acked-by: Alexander Aring <alex.aring@gmail.com> Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
* nl802154: add support for security layerAlexander Aring2015-09-301-0/+1128
| | | | | | | | | | | | | This patch adds support for accessing mac802154 llsec implementation over nl802154. I added for a new Kconfig entry to provide this functionality CONFIG_IEEE802154_NL802154_EXPERIMENTAL. This interface is still in development. It provides to change security parameters and add/del/dump entries of security tables. Later we can add also a get to get an entry by unique identifier. Cc: Phoebe Buckheister <phoebe.buckheister@itwm.fraunhofer.de> Signed-off-by: Alexander Aring <alex.aring@gmail.com> Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
* nl802154: use nla_get_le64 for get extended addrAlexander Aring2015-09-301-3/+1
| | | | | | | | This patch uses the nla_get_le64 function instead of doing a force converting to le64. Signed-off-by: Alexander Aring <alex.aring@gmail.com> Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
* nl802154: stricter input checking for boolean inputsStefan Schmidt2015-08-281-4/+12
| | | | | | | | | | | So far we handled boolean input by forcing them with !! and assigning them into a bool. This allowed userspace to send values > 1 which were used as 1. We should be stricter here and return -EINVAL for all but 0 or 1. Signed-off-by: Stefan Schmidt <stefan@osg.samsung.com> Acked-by: Alexander Aring <alex.aring@gmail.com> Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
* ieee802154: add ack request default handlingAlexander Aring2015-08-101-0/+33
| | | | | | | | | | | This patch introduce a new mib entry which isn't part of 802.15.4 but useful as default behaviour to set the ack request bit or not if we don't know if the ack request bit should set. This is currently used for stacks like IEEE 802.15.4 6LoWPAN. Reviewed-by: Stefan Schmidt <stefan@osg.samsung.com> Signed-off-by: Alexander Aring <alex.aring@gmail.com> Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
* nl802154: export supported commandsVarka Bhadram2015-06-041-0/+40
| | | | | | | | | | This patch will export the supported commands by the devices to the userspace. This will be useful to check if HardMAC drivers can support a specific command or not. Signed-off-by: Varka Bhadram <varkab@cdac.in> Acked-by: Alexander Aring <alex.aring@gmail.com> Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
* nl802154: add support to set cca ed levelAlexander Aring2015-05-271-0/+30
| | | | | | | | | This patch adds support for setting the current cca ed level value over nl802154. Signed-off-by: Alexander Aring <alex.aring@gmail.com> Reviewed-by: Varka Bhadram <varkabhadram@gmail.com> Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
* nl802154: add support for cca ed level infoAlexander Aring2015-05-271-0/+7
| | | | | | | | | This patch adds information about the current cca ed level when the phy is dumped over nl802154. Signed-off-by: Alexander Aring <alex.aring@gmail.com> Reviewed-by: Varka Bhadram <varkabhadram@gmail.com> Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
* ieee802154: add set transmit power supportVarka Bhadram2015-05-271-0/+30
| | | | | | | | | This patch adds transmission power setting support for IEEE-802.15.4 devices via nl802154. Signed-off-by: Varka Bhadram <varkab@cdac.in> Acked-by: Alexander Aring <alex.aring@gmail.com> Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
* nl802154: fix cca mode wpan phy flagAlexander Aring2015-05-261-1/+1
| | | | | | | | | This patch fix the handling to call cca mode setting. If the phy isn't flag then the driver doesn't support this setting. Signed-off-by: Alexander Aring <alex.aring@gmail.com> Reported-by: Varka Bhadram <varkabhadram@gmail.com> Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
* nl802154: add support for dump phy capabilitiesAlexander Aring2015-05-191-1/+116
| | | | | | | | | | This patch add support to nl802154 to dump all phy capabilities which is inside the wpan_phy_supported struct. Also we introduce a new method to dumping supported channels. The new method will offer a easier interface and has lesser netlink traffic. Signed-off-by: Alexander Aring <alex.aring@gmail.com> Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
* ieee802154: add iftypes capabilityAlexander Aring2015-05-191-1/+2
| | | | | | | This patch adds capability flags for supported interface types. Signed-off-by: Alexander Aring <alex.aring@gmail.com> Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
* cfg802154: introduce wpan phy flagsAlexander Aring2015-05-191-10/+17
| | | | | | | | | | | | | | | | | | | | | | | This patch introduce a flag property for the wpan phy structure. The current flag settings in ieee802154_hw are accessable in mac802154 layer only which is okay for flags which indicates MAC handling which are done by phy. For real PHY layer settings like cca mode, transmit power, cca energy detection level. The difference between these flags are that the MAC handling flags are only handled in mac802154/HardMac layer e.g. on an interface up. The phy settings are direct netlink calls from nl802154 into the driver layer and the nl802154 need to have a chance to check if the driver supports this handling before sending to the next layer. We also check now on PHY flags while dumping and setting pib attributes. In comparing with MIB attributes the 802.15.4 gives us an default value which we assume when a transceiver implement less functionality. In case of MIB settings the nl802154 layer doesn't need to check on the ieee802154_hw flags then. Signed-off-by: Alexander Aring <alex.aring@gmail.com> Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
* ieee802154: add several phy supported handlingAlexander Aring2015-05-191-5/+17
| | | | | | | | | | | | | | This patch adds support for phy supported handling for all other already existing handling 802.15.4 functionality. We assume now a fully 802.15.4 complaint transceiver at phy allocation. If a transceiver can support 802.15.4 default values only, then the values should be overwirtten by values the transceiver supports. If the transceiver doesn't set the according hardware flags, we assume the 802.15.4 defaults now which cannot be changed. Signed-off-by: Alexander Aring <alex.aring@gmail.com> Suggested-by: Phoebe Buckheister <phoebe.buckheister@itwm.fraunhofer.de> Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
* ieee802154: introduce wpan_phy_supportedAlexander Aring2015-05-191-2/+2
| | | | | | | | | | | | | This patch introduce the wpan_phy_supported struct for wpan_phy. There is currently no way to check if a transceiver can handle IEEE 802.15.4 complaint values. With this struct we can check before if the transceiver supports these values before sending to driver layer. Signed-off-by: Alexander Aring <alex.aring@gmail.com> Suggested-by: Phoebe Buckheister <phoebe.buckheister@itwm.fraunhofer.de> Acked-by: Varka Bhadram <varkabhadram@gmail.com> Cc: Alan Ott <alan@signal11.us> Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
* ieee802154: change transmit power to s32Alexander Aring2015-05-191-3/+3
| | | | | | | | | | This patch change the transmit power from s8 to s32. This prepares to store a mbm value instead dbm inside the transmit power variable. The old interface keep the a s8 dbm value, which should be backward compatibility when assign s8 to s32. Signed-off-by: Alexander Aring <alex.aring@gmail.com> Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
* ieee802154: move validation check out of softmacAlexander Aring2015-05-191-1/+27
| | | | | | | | | This patch moves the value validation out of softmac layer. We need to be sure now that this value is accepted by the transceiver/mac802154 or "possible" hardmac drivers before calling rdev-ops. Signed-off-by: Alexander Aring <alex.aring@gmail.com> Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
* nl802154: cleanup invalid argument handlingAlexander Aring2015-05-191-8/+4
| | | | | | | | This patch cleanups the -EINVAL cases by combining them in one condition. Signed-off-by: Alexander Aring <alex.aring@gmail.com> Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
* cfg802154: pass name_assign_type to rdev_add_virtual_intf()Varka Bhadram2015-04-301-1/+1
| | | | | | | | | | | | | | | This code is based on commit 6bab2e19c5ffd ("cfg80211: pass name_assign_type to rdev_add_virtual_intf()") This will expose in sysfs whether the ifname of a IEEE-802.15.4 device is set by userspace or generated by the kernel. We are using two types of name_assign_types o NET_NAME_ENUM: Default interface name provided by kernel o NET_NAME_USER: Interface name provided by user. Signed-off-by: Varka Bhadram <varkab@cdac.in> Signed-off-by: Alexander Aring <alex.aring@gmail.com> Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
* netlink: make nlmsg_end() and genlmsg_end() voidJohannes Berg2015-01-181-2/+4
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Contrary to common expectations for an "int" return, these functions return only a positive value -- if used correctly they cannot even return 0 because the message header will necessarily be in the skb. This makes the very common pattern of if (genlmsg_end(...) < 0) { ... } be a whole bunch of dead code. Many places also simply do return nlmsg_end(...); and the caller is expected to deal with it. This also commonly (at least for me) causes errors, because it is very common to write if (my_function(...)) /* error condition */ and if my_function() does "return nlmsg_end()" this is of course wrong. Additionally, there's not a single place in the kernel that actually needs the message length returned, and if anyone needs it later then it'll be very easy to just use skb->len there. Remove this, and make the functions void. This removes a bunch of dead code as described above. The patch adds lines because I did - return nlmsg_end(...); + nlmsg_end(...); + return 0; I could have preserved all the function's return values by returning skb->len, but instead I've audited all the places calling the affected functions and found that none cared. A few places actually compared the return value with <= 0 in dump functionality, but that could just be changed to < 0 with no change in behaviour, so I opted for the more efficient version. One instance of the error I've made numerous times now is also present in net/phonet/pn_netlink.c in the route_dumpit() function - it didn't check for <0 or <=0 and thus broke out of the loop every single time. I've preserved this since it will (I think) have caused the messages to userspace to be formatted differently with just a single message for every SKB returned to userspace. It's possible that this isn't needed for the tools that actually use this, but I don't even know what they are so couldn't test that changing this behaviour would be acceptable. Signed-off-by: Johannes Berg <johannes.berg@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* nl802154: introduce support for cca settingsAlexander Aring2014-12-191-3/+43
| | | | | | | This patch adds support for setting cca parameters via nl802154. Signed-off-by: Alexander Aring <alex.aring@gmail.com> Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
* ieee802154: rework cca settingAlexander Aring2014-12-191-1/+1
| | | | | | | | | | The current cca setting handle is a driver specific call. We need to introduce some 802.15.4 specific layer and mapping 802.15.4 cca modes to driver specific ones inside the 802.15.4 driver. This patch will add such 802.15.4 layer and mapping the cca settings to driver specific ones. Signed-off-by: Alexander Aring <alex.aring@gmail.com> Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
* ieee802154: fix byteorder for short address and panidAlexander Aring2014-11-171-4/+4
| | | | | | | | This patch changes the byteorder handling for short and panid handling. We now except to get little endian in nl802154 for these attributes. Signed-off-by: Alexander Aring <alex.aring@gmail.com> Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
* ieee802154: rename and move WPAN_NUM_ definesAlexander Aring2014-11-171-2/+2
| | | | | | | | | | This patch moves the 802.15.4 constraints WPAN_NUM_ defines into "net/ieee802154.h" which should contain all necessary 802.15.4 related information. Also rename these defines to a common name which is IEEE802154_MAX_CHANNEL and IEEE802154_MAX_PAGE. Signed-off-by: Alexander Aring <alex.aring@gmail.com> Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
* ieee802154: add del interface commandAlexander Aring2014-11-171-0/+28
| | | | | | | This patch adds support for deleting a wpan interface via nl802154. Signed-off-by: Alexander Aring <alex.aring@gmail.com> Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
* ieee802154: setting extended address while iface addAlexander Aring2014-11-171-1/+7
| | | | | | | | | | | This patch adds support for setting an extended address while registration a new interface. If ieee802154_is_valid_extended_addr getting as parameter and invalid extended address then the perm address is fallback. This is useful to make some default handling while for example default registration of a wpan interface while phy registration. Signed-off-by: Alexander Aring <alex.aring@gmail.com> Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
* ieee802154: add new interface commandAlexander Aring2014-11-171-0/+34
| | | | | | | | This patch adds a new nl802154 command for adding a new interface according to a wpan phy via nl802154. Signed-off-by: Alexander Aring <alex.aring@gmail.com> Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
* ieee820154: add lbt setting supportAlexander Aring2014-11-121-0/+25
| | | | | | | | This patch adds support for setting listen before transmit mode via nl802154 framework. Signed-off-by: Alexander Aring <alex.aring@gmail.com> Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
* ieee820154: add max frame retries setting supportAlexander Aring2014-11-121-0/+32
| | | | | | | | This patch add support for setting mac frame retries setting via nl802154 framework. Signed-off-by: Alexander Aring <alex.aring@gmail.com> Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
* ieee820154: add max csma backoffs setting supportAlexander Aring2014-11-121-0/+33
| | | | | | | | This patch add support for max csma backoffs setting via nl802154 framework. Signed-off-by: Alexander Aring <alex.aring@gmail.com> Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
* ieee820154: add backoff exponent setting supportAlexander Aring2014-11-121-0/+34
| | | | | | | | This patch adds support for setting backoff exponents via nl802154 framework. Signed-off-by: Alexander Aring <alex.aring@gmail.com> Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
* ieee820154: add short_addr setting supportAlexander Aring2014-11-121-0/+31
| | | | | | | | | | | | | This patch adds support for setting short address via nl802154 framework. Also added a comment because a 0xffff seems to be valid address that we don't have a short address. This is a valid setting but we need more checks in upper layers to don't allow this address as source address. Also the current netlink interface doesn't allow to set the short_addr to 0xffff. Same for the 0xfffe short address which describes a not allocated short address. Signed-off-by: Alexander Aring <alex.aring@gmail.com> Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
* ieee820154: add pan_id setting supportAlexander Aring2014-11-121-0/+31
| | | | | | | | | | | | This patch adds support for setting pan_id via nl802154 framework. Adding a comment because setting 0xffff as pan_id seems to be valid setting. The pan_id 0xffff as source pan is invalid. I am not sure now about this setting but for the current netlink interface this is an invalid setting, so we do the same now. Maybe we need to change that when we have coordinator support and association support. Signed-off-by: Alexander Aring <alex.aring@gmail.com> Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
* ieee820154: add channel set supportAlexander Aring2014-11-121-0/+28
| | | | | | | This patch adds page and channel setting support to nl802154 framework. Signed-off-by: Alexander Aring <alex.aring@gmail.com> Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
* ieee802154: add wpan_dev dump supportAlexander Aring2014-11-091-0/+145
| | | | | | | This patch adds support for wpan_dev dump via nl802154 framework. Signed-off-by: Alexander Aring <alex.aring@gmail.com> Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
* ieee802154: add wpan_phy dump supportAlexander Aring2014-11-091-0/+221
| | | | | | | This patch adds support for dumping wpan_phy attributes via nl802154. Signed-off-by: Alexander Aring <alex.aring@gmail.com> Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
* ieee802154: add nl802154 frameworkAlexander Aring2014-11-091-0/+309
This patch adds a basic nl802154 framework. Most of this code was grabbed from nl80211 framework. Signed-off-by: Alexander Aring <alex.aring@gmail.com> Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
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