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* 6lowpan: move shared settings to lowpan_netdev_setupAlexander Aring2015-10-081-4/+0
| | | | | | | | | | | | | | | | This patch moves values for all lowpan interface to the shared implementation of 6lowpan. This patch also quietly fixes the forgotten IFF_NO_QUEUE flag for the bluetooth 6LoWPAN interface. An identically commit is 4afbc0d ("net: 6lowpan: convert to using IFF_NO_QUEUE") which wasn't changed for bluetooth 6lowpan. All 6lowpan interfaces should be virtual with IFF_NO_QUEUE, using EUI64 address length, the mtu size is 1280 (IPV6_MIN_MTU) and the netdev type is ARPHRD_6LOWPAN. Signed-off-by: Alexander Aring <alex.aring@gmail.com> Acked-by: Jukka Rissanen <jukka.rissanen@linux.intel.com> Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
* 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>
* ieee802154: handle datagram variables as u16Alexander Aring2015-10-013-7/+9
| | | | | | | | | | | | | | | This reverts commit 9abc378c66e3d6f437eed77c1c534cbc183523f7 ("ieee802154: 6lowpan: change datagram var types"). The reason is that I forgot the IPv6 fragmentation here. Our MTU of lowpan interface is 1280 and skb->len should not above of that. If we reach a payload above 1280 in IPv6 header then we have a IPv6 fragmentation above 802.15.4 6LoWPAN fragmentation. The type "u16" was fine, instead I added now a WARN_ON_ONCE if skb->len is above MTU which should never happen otherwise IPv6 on minimum MTU size is broken. Signed-off-by: Alexander Aring <alex.aring@gmail.com> Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
* ieee802154: 6lowpan: add tx/rx statsAlexander Aring2015-09-302-0/+6
| | | | | | | | | | | This patch adds support for increment transmit and receive stats. The meaning of these stats are IPv6 based, which shows the stats after running the 6lowpan adaptation layer (uncompression/compression, fragmentation handling) on receive and before the adaptation layer when transmit. Signed-off-by: Alexander Aring <alex.aring@gmail.com> Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
* ieee802154: 6lowpan: don't skip first dsn while fragmentationAlexander Aring2015-09-301-10/+17
| | | | | | | | | | | | | This patch fixes the data frame sequence numer (dsn) while 6lowpan fragmentation for frag1. Currently we create one 802.15.4 header at first, then check if it's match into one frame and at the end construct many fragments and calling wpan_dev_hard_header for each of them, inclusive for the first fragment. This will make the first generated header to garbage, instead we copying this header for frag1 instead of generate a new one which skips one dsn. Signed-off-by: Alexander Aring <alex.aring@gmail.com> Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
* ieee802154: 6lowpan: change datagram var typesAlexander Aring2015-09-303-7/+7
| | | | | | | | | | This patch changes datagram size variable from u16 type to unsigned int. The reason is that an IPv6 header has an MAX_UIN16 payload length, but the datagram size is payload + IPv6 header length. This avoids overflows at some places. Signed-off-by: Alexander Aring <alex.aring@gmail.com> Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
* ieee802154: change mtu size behaviourAlexander Aring2015-09-301-2/+2
| | | | | | | | | | | | | | | | | This patch changes the mtu size of 802.15.4 interfaces. The current setting is the meaning of the maximum transport unit with mac header, which is 127 bytes according 802.15.4. The linux meaning of the mtu size field is the maximum payload of a mac frame. Like in ethernet, which is 1500 bytes. We have dynamic length of mac frames in 802.15.4, this is why we assume the minimum header length which is hard_header_len. This contains fc and sequence fields. These can evaluated by driver layer without additional checks. We currently don't support to set the FCS from userspace, so we need to subtract this from mtu size as well. Signed-off-by: Alexander Aring <alex.aring@gmail.com> Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
* nl802154: add support for security layerAlexander Aring2015-09-305-0/+1255
| | | | | | | | | | | | | 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>
* ieee802154: change needed headroom/tailroomAlexander Aring2015-09-223-6/+22
| | | | | | | | | | | | | | | | | | | | | This patch cleanups needed_headroom, needed_tailroom and hard_header_len fields for wpan and lowpan interfaces. For wpan interfaces the worst case mac header len should be part of needed_headroom, currently this is set as hard_header_len, but hard_header_len should be set to the minimum header length which xmit call assumes and this is the minimum frame length of 802.15.4. The hard_header_len value will check inside send callbacl of AF_PACKET raw sockets. For lowpan interfaces, if fragmentation isn't needed the skb will call dev_hard_header for 802154 layer and queue it afterwards. This happens without new skb allocation, so we need the same headroom and tailroom lengths like 802154 inside 802154 6lowpan layer. At least we assume as minimum header length an ipv6 header size. Signed-off-by: Alexander Aring <alex.aring@gmail.com> Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
* ieee802154: introduce wpan_dev_header_opsAlexander Aring2015-09-222-6/+6
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The current header_ops callback structure of net device are used mostly from 802.15.4 upper-layers. Because this callback structure is a very generic one, which is also used by e.g. DGRAM AF_PACKET sockets, we can't make this callback structure 802.15.4 specific which is currently is. I saw the smallest "constraint" for calling this callback with dev_hard_header/dev_parse_header by AF_PACKET which assign a 8 byte array for address void pointers. Currently 802.15.4 specific protocols like af802154 and 6LoWPAN will assign the "struct ieee802154_addr" as these parameters which is greater than 8 bytes. The current callback implementation for header_ops.create assumes always a complete "struct ieee802154_addr" which AF_PACKET can't never handled and is greater than 8 bytes. For that reason we introduce now a "generic" create/parse header_ops callback which allows handling with intra-pan extended addresses only. This allows a small use-case with AF_PACKET to send "somehow" a valid dataframe over DGRAM. To keeping the current dev_hard_header behaviour we introduce a similar callback structure "wpan_dev_header_ops" which contains 802.15.4 specific upper-layer header creation functionality, which can be called by wpan_dev_hard_header. Signed-off-by: Alexander Aring <alex.aring@gmail.com> Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
* ieee802154: header_ops: fix frame control settingAlexander Aring2015-09-221-9/+9
| | | | | | | | | | | | Sometimes upper-layer protocols wants to generate a new mac header by filling "struct ieee802154_hdr" only. These upper-layers sets for the address settings the source and dest fields, but not the fc fields for indicate the source and dest address mode. This patch changes the "ieee802154_hdr_push" function so the fc address fields are set according the source and dest fields of "struct ieee802154_hdr". Signed-off-by: Alexander Aring <alex.aring@gmail.com> Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
* ieee802154: 6lowpan: use correct ESC value for dispatchStefan Schmidt2015-09-171-1/+1
| | | | | | | | | | | | | | | The ESC dispatch value has some history and it originally was 0x7f in rfc4944 (see section-5.1). With the release of rfc6282 this value got part of the LOWPAN_IPHC range and was no longer available for ESC. Instead 0x40 was used as replacement (see section-2 in rfc6282). We have been checking the dispatch byte in an order where IPHC would always be evaluated before ESC and thus we would never reach the ESC check as the IPHC range already covers this value. 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: 6lowpan: fix drop return valueAlexander Aring2015-09-171-1/+1
| | | | | | | | | | | | | This patch changes the return value of lowpan packet receive handler to the correct NET_RX_DROP instead RX_DROP. This issue was detected by sparse and reported from Marcel: net/ieee802154/6lowpan/rx.c:329:32: expected int net/ieee802154/6lowpan/rx.c:329:32: got restricted lowpan_rx_result ... Reported-by: Marcel Holtmann <marcel@holtmann.org> Signed-off-by: Alexander Aring <alex.aring@gmail.com> Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
* ieee802154: 6lowpan: remove tx full-size calc workaroundAlexander Aring2015-09-171-7/+11
| | | | | | | | | This patch removes a workaround for datagram_size calculation while doing fragmentation on transmit. 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>
* ieee802154: 6lowpan: remove packet type to hostAlexander Aring2015-09-171-1/+0
| | | | | | | | | | | | This patch remove the packet_type to host and leave the mac pkt_type. By running 'grep -r "pkt_type" net/ipv6', the IPv6 stack will evaluate this value for PACKET_BROADCAST. Instead of overwriting this value we will leave the mac value there which is broadcasts if the mac frame was a broadcast frame. 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>
* ieee802154: 6lowpan: check on valid 802.15.4 frameAlexander Aring2015-09-171-0/+8
| | | | | | | | | This patch adds frame control checks to check if the received frame is something which could contain a 6LoWPAN packet. 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>
* ieee802154: 6lowpan: add check for reserved dispatchAlexander Aring2015-09-171-1/+15
| | | | | | | | | This patch adds checks for reserved dispatch value. When we have a reserved dispatch value we should drop the skb immediately. 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>
* ieee802154: 6lowpan: add handler for all dispatch valuesAlexander Aring2015-09-171-0/+90
| | | | | | | | | | | This patch adds dummy handlers for all known IEEE 802.15.4 dispatch values which prints a warning that we don't support these dispatches right now. Also we add a warning to the RX_CONTINUE case inside of lowpan_rx_handlers_result which should now never happend. 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>
* ieee802154: 6lowpan: add generic lowpan header checkAlexander Aring2015-09-171-1/+27
| | | | | | | | | | | | This patch introduce an earlier check if a 6LoWPAN frame can be valid. This contains at first for checking if the header contains a dispatch byte and isn't the nalp dispatch value, which means it isn't a 6LoWPAN packet. Also we add a check if we can derference the dispatch value by checking if skb->len is unequal zero. 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>
* ieee820154: 6lowpan: dispatch evaluation reworkAlexander Aring2015-09-173-103/+239
| | | | | | | | | | | | | | | | | | | | This patch complete reworks the evaluation of 6lowpan dispatch value by introducing a receive handler mechanism for each dispatch value. A list of changes: - Doing uncompression on-the-fly when FRAG1 is received, this require some special handling for 802.15.4 lltype in generic 6lowpan branch for setting the payload length correct. - Fix dispatch mask for fragmentation. - Add IPv6 dispatch evaluation for FRAG1. - Add skb_unshare for dispatch which might manipulate the skb data buffer. Cc: Jukka Rissanen <jukka.rissanen@linux.intel.com> 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>
* ieee802154: 6lowpan: earlier skb->dev switchAlexander Aring2015-09-171-1/+2
| | | | | | | | | | | We should change the skb->dev pointer earlier to the lowpan interface Sometimes we call iphc_decompress which also use some netdev printout functionality. This patch will change that the correct interface will be displayed in this case, which should be the lowpan interface. 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>
* ieee802154: 6lowpan: trivial checks at firstAlexander Aring2015-09-171-4/+2
| | | | | | | | | This patch moves some trivial checks at first before calling skb_share_check which could do some memcpy if the buffer is shared. 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>
* ieee802154: 6lowpan: cleanup pull of iphc bytesAlexander Aring2015-09-171-7/+2
| | | | | | | | | | This patch cleanups the pull of the iphc bytes. We don't need to check if the skb->len contains two bytes, this will be checked by lowpan_fetch_skb_u8. 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>
* ieee802154: 6lowpan: change if lowpan dev is runningAlexander Aring2015-09-171-5/+6
| | | | | | | | | | | | We don't need to check if the wpan interface is running because the lowpan_rcv is the packet layer receive handler for the wpan interface. Instead doing a check if wpan interface is running we should check if the lowpan interface is running before starting 6lowpan adaptation layer. 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>
* ieee802154: 6lowpan: remove EXPORT_SYMBOLAlexander Aring2015-09-171-1/+0
| | | | | | | | | | This function is used internally inside of ieee802154 6lowpan module only and not outside of any other module. We don't need to export this function then. 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>
* ieee802154: 6lowpan: remove set to zeroAlexander Aring2015-09-171-1/+0
| | | | | | | | | Internal mechanism by calling netdev_alloc which use kzalloc already sets these variables to zero. This patch cleanup the setup of net_device. 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>
* ieee802154: 6lowpan: remove check on nullAlexander Aring2015-09-171-1/+1
| | | | | | | | | | | This patch removes one check on null which should be already done by checking before for ARPHRD_IEEE802154. All ARPHRD_IEEE802154 and ARPHRD_IEEE802154_MONITOR should have wdev->ieee802154_ptr, where ARPHRD_IEEE802154 is currently a node interface only. 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>
* ieee802154: 6lowpan: register packet layer while openAlexander Aring2015-09-171-10/+18
| | | | | | | | | | | | | This patch moves the open count handling while doing open of a lowpan interface. We need the packet handler register at first when one lowpan interface is up. There exists a small case when all lowpan interfaces are down and the 802154 packet layer is still registered. To reduce some overhead we will register the packet layer when the first lowpan interface comes up and unregister when the last interface will become down. 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>
* ieee802154: 6lowpan: change dev vars to wdev and ldevAlexander Aring2015-09-175-84/+82
| | | | | | | | | | | | | Inside the IEEE 802.15.4 6LoWPAN subsystem we use two interfaces which are wpan and lowpan interfaces. Instead of using always the variable name "dev" for both we rename the "dev" variable to wdev which means the wpan net_device and ldev which means a lowpan net_device. This avoids confusing and always looking back to see which net_device is meant by the variable name "dev". 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>
* Merge branch 'for-upstream' of ↵David S. Miller2015-08-291-4/+12
|\ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/bluetooth/bluetooth-next Johan Hedberg says: ==================== pull request: bluetooth-next 2015-08-28 One more bunch of Bluetooth patches for 4.3: - Crash fix for hci_bcm driver - Enhancements to hci_intel driver (e.g. baudrate configuration) - Fix for SCO link type after multiple connect attempts - Cleanups & minor fixes in a few other places Please let me know if there are any issues pulling. Thanks. ==================== Signed-off-by: David S. Miller <davem@davemloft.net>
| * 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>
* | net: 6lowpan: convert to using IFF_NO_QUEUEPhil Sutter2015-08-181-1/+1
|/ | | | | | Signed-off-by: Phil Sutter <phil@nwl.cc> Cc: Alexander Aring <alex.aring@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* ieee802154: 6lowpan: fix non-lowpan wpan interfacesAlexander Aring2015-08-151-3/+4
| | | | | | | | We receive all 802.15.4 frames on the packet handler "lowpan_rcv" this patch checks if the wpan device belongs to a lowpan interface. Signed-off-by: Alexander Aring <alex.aring@gmail.com> Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
* ieee802154: 6lowpan: fix packet layer registrationAlexander Aring2015-08-151-5/+17
| | | | | | | | | | | | | This patch fixes 802.15.4 packet layer registration when mutliple lowpan interfaces will be added. We need to register the packet layer at the first lowpan interface and deregister it at the last interface. This done by open_count variable which is protected by rtnl. Additional do a quiet fix by adding dev_put(real_dev) when netdev registration fails, which fix the refcount for the wpan dev. Signed-off-by: Alexander Aring <alex.aring@gmail.com> Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
* 6lowpan: add generic 6lowpan netdev private dataAlexander Aring2015-08-112-2/+5
| | | | | | | | | | | | This patch introduced the 6lowpan netdev private data struct. We name it lowpan_priv and it's placed at the beginning of netdev private data. All lowpan interfaces should allocate this room at first of netdev private data. 6LoWPAN LL private data can be allocate by additional netdev private data, e.g. dev->priv_size should be "sizeof(struct lowpan_priv) + sizeof(LL_LOWPAN_PRIVATE_DATA)". Signed-off-by: Alexander Aring <alex.aring@gmail.com> Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
* ieee802154: 6lowpan: fix error frag handlingAlexander Aring2015-08-101-1/+1
| | | | | | | | This patch fixes the error handling for lowpan_xmit_fragment by replace "-PTR_ERR" to "PTR_ERR". PTR_ERR returns already a negative errno code. Signed-off-by: Alexander Aring <alex.aring@gmail.com> Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
* ieee802154: add ack request default handlingAlexander Aring2015-08-104-1/+66
| | | | | | | | | | | 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>
* ieee802154: 6lowpan: remove multiple lowpan per wpan supportAlexander Aring2015-08-103-86/+27
| | | | | | | | | | | | | | | | We currently supports multiple lowpan interfaces per wpan interface. I never saw any use case into such functionality. We drop this feature now because it's much easier do deal with address changes inside the under laying wpan interface. This patch removes the multiple lowpan interface and adds a lowpan_dev netdev pointer into the wpan_dev, if this pointer isn't null the wpan interface belongs to the assigned lowpan interface. Reviewed-by: Stefan Schmidt <stefan@osg.samsung.com> Tested-by: Stefan Schmidt <stefan@osg.samsung.com> Signed-off-by: Alexander Aring <alex.aring@gmail.com> Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
* Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/netDavid S. Miller2015-07-311-3/+3
|\ | | | | | | | | | | | | | | | | | | | | | | | | Conflicts: arch/s390/net/bpf_jit_comp.c drivers/net/ethernet/ti/netcp_ethss.c net/bridge/br_multicast.c net/ipv4/ip_fragment.c All four conflicts were cases of simple overlapping changes. Signed-off-by: David S. Miller <davem@davemloft.net>
| * inet: frag: change *_frag_mem_limit functions to take netns_frags as argumentFlorian Westphal2015-07-261-3/+3
| | | | | | | | | | | | | | | | | | Followup patch will call it after inet_frag_queue was freed, so q->net doesn't work anymore (but netf = q->net; free(q); mem_limit(netf) would). Tested-by: Frank Schreuder <fschreuder@transip.nl> Signed-off-by: Florian Westphal <fw@strlen.de> Signed-off-by: David S. Miller <davem@davemloft.net>
* | cfg802154: add PM hooksVarka Bhadram2015-07-233-0/+80
|/ | | | | | | | | | This patch help to implement suspend/resume in mac802154, these hooks will be run before the device is suspended and after it resumes. 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>
* 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>
* ieee802154: Fix sockaddr_ieee802154 implicit padding information leak.Lennert Buytenhek2015-06-041-0/+6
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The AF_IEEE802154 sockaddr looks like this: struct sockaddr_ieee802154 { sa_family_t family; /* AF_IEEE802154 */ struct ieee802154_addr_sa addr; }; struct ieee802154_addr_sa { int addr_type; u16 pan_id; union { u8 hwaddr[IEEE802154_ADDR_LEN]; u16 short_addr; }; }; On most architectures there will be implicit structure padding here, in two different places: * In struct sockaddr_ieee802154, two bytes of padding between 'family' (unsigned short) and 'addr', so that 'addr' starts on a four byte boundary. * In struct ieee802154_addr_sa, two bytes at the end of the structure, to make the structure 16 bytes. When calling recvmsg(2) on a PF_IEEE802154 SOCK_DGRAM socket, the ieee802154 stack constructs a struct sockaddr_ieee802154 on the kernel stack without clearing these padding fields, and, depending on the addr_type, between four and ten bytes of uncleared kernel stack will be copied to userspace. We can't just insert two 'u16 __pad's in the right places and zero those before copying an address to userspace, as not all architectures insert this implicit padding -- from a quick test it seems that avr32, cris and m68k don't insert this padding, while every other architecture that I have cross compilers for does insert this padding. The easiest way to plug the leak is to just memset the whole struct sockaddr_ieee802154 before filling in the fields we want to fill in, and that's what this patch does. Cc: stable@vger.kernel.org Signed-off-by: Lennert Buytenhek <buytenh@wantstofly.org> Acked-by: Alexander Aring <alex.aring@gmail.com> Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
* cfg802154: fix rdev-ops naming convension and format specifiersVarka Bhadram2015-06-041-5/+5
| | | | | | | | | This patch make to use the same naming convention that mac802154 tracing follows and fixes the format specifier for extended addr. Signed-off-by: Varka Bhadram <varkab@cdac.in> Acked-by: Alexander Aring <alex.aring@gmail.com> Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
* ieee802154: 6lowpan: set ackreq when neededAlexander Aring2015-06-021-2/+3
| | | | | | | | | | | | | This patch sets the acknowledge request bit inside the 802.15.4 mac header when frame retries is 0 or above. The other frame retries value which is -1 indicates that the transmitter doesn't care about an acknowledge frame which will be ignored after transmitting if the node sends anyway an ack frame after receiving. This is currently unnecessary traffic if the max frame retries parameter is -1. Signed-off-by: Alexander Aring <alex.aring@gmail.com> Reviewed-by: Stefan Schmidt <stefan@osg.samsung.com> Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
* nl802154: add support to set cca ed levelAlexander Aring2015-05-273-0/+56
| | | | | | | | | 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: fix typo for file nameVarka Bhadram2015-05-271-1/+1
| | | | | Signed-off-by: Varka Bhadram <varkab@cdac.in> Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
* ieee802154: add set transmit power supportVarka Bhadram2015-05-273-0/+57
| | | | | | | | | 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>
generated by cgit v1.2.3 (git 2.25.1) at 2024-12-16 12:16:45 +0000