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* 6lowpan_rtnl: fix off by one while fragmentationAlexander Aring2014-06-021-1/+1
| | | | | | | | | | | | | This patch fix a off by one error while fragmentation. If the frag_cap value is equal to skb_unprocessed value we need to stop the fragmentation loop because the last fragment which has a size of skb_unprocessed fits into the frag capability size. This issue was introduced by commit d4b2816d67d6e07b2f27037f282d8db03a5829d7 ("6lowpan: fix fragmentation"). Signed-off-by: Alexander Aring <alex.aring@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* 6lowpan_rtnl: fix fragmentation with two fragmentsAlexander Aring2014-06-021-2/+2
| | | | | | | | | | | | | | | This patch fix the 6LoWPAN fragmentation for the case if we have exactly two fragments. The problem is that the (skb_unprocessed >= frag_cap) condition is always false on the second fragment after sending the first fragment. A fragmentation with only one fragment doesn't make any sense. The solution is that we use a do while loop here, that ensures we sending always a minimum of two fragments if we need a fragmentation. This issue was introduced by commit d4b2816d67d6e07b2f27037f282d8db03a5829d7 ("6lowpan: fix fragmentation"). Signed-off-by: Alexander Aring <alex.aring@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* ieee802154: missing put_dev() on errorDan Carpenter2014-05-221-2/+4
| | | | | | | | We should call put_dev() on the error path here. Fixes: 3e9c156e2c21 ('ieee802154: add netlink interfaces for llsec') Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* ieee802154: add netlink interfaces for llsecPhoebe Buckheister2014-05-164-0/+862
| | | | | | | | | | | | | | | | | This patch adds user-visible interfaces for the llsec infrastructure. For the added methods, the only major difference between all add/remove implementation lies in how the specific object is parsed, and for dump requests, how objects are written into netlink messages. To save on boilerplate code, table dumps are routed through a helper function that handles netlink dump state, leaving the actual dumping code to care only about iterating over the table to be dumped and filling netlink messages. For add/remove methods, the boilerplate required to work is not quite as large, but still enough to also move into a local helper. Signed-off-by: Phoebe Buckheister <phoebe.buckheister@itwm.fraunhofer.de> Signed-off-by: David S. Miller <davem@davemloft.net>
* ieee802154: add dgram sockopts for security controlPhoebe Buckheister2014-05-161-0/+66
| | | | | | | | | Allow datagram sockets to override the security settings of the device they send from on a per-socket basis. Requires CAP_NET_ADMIN or CAP_NET_RAW, since raw sockets can send arbitrary packets anyway. Signed-off-by: Phoebe Buckheister <phoebe.buckheister@itwm.fraunhofer.de> Signed-off-by: David S. Miller <davem@davemloft.net>
* ieee802154: fix dgram socket sendmsg()Phoebe Buckheister2014-05-151-9/+19
| | | | | | | | | | | | | | | 802.15.4 datagram sockets do not currently have a compliant sendmsg(). The destination address supplied is always ignored, and in unconnected mode, packets are broadcast instead of dropped with -EDESTADDRREQ. This patch fixes 802.15.4 dgram sockets to be compliant, i.e. !conn && !msg_name => -EDESTADDRREQ !conn && msg_name => send to msg_name conn && !msg_name => send to connected conn && msg_name => -EISCONN Signed-off-by: Phoebe Buckheister <phoebe.buckheister@itwm.fraunhofer.de> Signed-off-by: David S. Miller <davem@davemloft.net>
* 6lowpan: fix fragmentationPhoebe Buckheister2014-05-151-94/+104
| | | | | | | | | | | | | | | | | | Currently, 6lowpan creates one 802.15.4 MAC header for the original packet the device was given by upper layers and reuses this header for all fragments, if fragmentation is required. This also reuses frame sequence numbers, which must not happen. 6lowpan also has issues with fragmentation in the presence of security headers, since those may imply the presence of trailing fields that are not accounted for by the fragmentation code right now. Fix both of these issues by properly allocating fragment skbs with headromm and tailroom as specified by the underlying device, create one header for each skb instead of reusing the original header, let the underlying device do the rest. Signed-off-by: Phoebe Buckheister <phoebe.buckheister@itwm.fraunhofer.de> Signed-off-by: David S. Miller <davem@davemloft.net>
* ieee802154: change _cb handling slightlyPhoebe Buckheister2014-05-152-11/+8
| | | | | | | | | | | | | The current mac_cb handling of ieee802154 is rather awkward and limited. Decompose the single flags field into multiple fields with the meanings of each subfield of the flags field to make future extensions (for example, link-layer security) easier. Also don't set the frame sequence number in upper layers, since that's a thing the MAC is supposed to set on frame transmit - we set it on header creation, but assuming that upper layers do not blindly duplicate our headers, this is fine. Signed-off-by: Phoebe Buckheister <phoebe.buckheister@itwm.fraunhofer.de> Signed-off-by: David S. Miller <davem@davemloft.net>
* ieee802154: add definitions for link-layer security and header functionsPhoebe Buckheister2014-05-151-7/+45
| | | | | | | | | | | | | When dealing with 802.15.4, one often has to know the maximum payload size for a given packet. This depends on many factors, one of which is whether or not a security header is present in the frame. These definitions and functions provide an easy way for any upper layer to calculate the maximum payload size for a packet. The first obvious user for this is 6lowpan, which duplicates this calculation and gets it partially wrong because it ignores security headers. Signed-off-by: Phoebe Buckheister <phoebe.buckheister@itwm.fraunhofer.de> Signed-off-by: David S. Miller <davem@davemloft.net>
* 6lowpan: make lowpan_cb staticLuis R. Rodriguez2014-04-201-1/+1
| | | | | | | | CC: Alexander Smirnov <alex.bluesman.smirnov@gmail.com> Cc: Dmitry Eremin-Solenikov <dbaryshkov@gmail.com> Cc: linux-zigbee-devel@lists.sourceforge.net Signed-off-by: Luis R. Rodriguez <mcgrof@suse.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* 6lowpan: add helper to get 6lowpan namespaceLuis R. Rodriguez2014-04-201-16/+30
| | | | | | | | | | | | | | This will simplify the new reassembly backport with no code changes being required. CC: Alexander Smirnov <alex.bluesman.smirnov@gmail.com> Cc: Dmitry Eremin-Solenikov <dbaryshkov@gmail.com> Cc: linux-zigbee-devel@lists.sourceforge.net Cc: David S. Miller" <davem@davemloft.net> Cc: netdev@vger.kernel.org Cc: linux-kernel@vger.kernel.org Signed-off-by: Luis R. Rodriguez <mcgrof@suse.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* mac802154: make csma/cca parameters per-wpanPhoebe Buckheister2014-04-015-210/+122
| | | | | | | | | | | | Commit 9b2777d6089bcd (ieee802154: add TX power control to wpan_phy) and following erroneously added CSMA and CCA parameters for 802.15.4 devices as PHY parameters, while they are actually MAC parameters and can differ for any two WPAN instances. Since it is now sensible to have multiple WPAN devices with differing CSMA/CCA parameters, make these parameters MAC parameters instead. Signed-off-by: Phoebe Buckheister <phoebe.buckheister@itwm.fraunhofer.de> Signed-off-by: David S. Miller <davem@davemloft.net>
* ieee802154: dgram: cleanup set of broadcast panidAlexander Aring2014-03-201-1/+1
| | | | | | | | | This patch is only a cleanup to use the right define for a panid field. The broadcast address and panid broadcast is still the same value. Signed-off-by: Alexander Aring <alex.aring@gmail.com> Cc: Phoebe Buckheister <phoebe.buckheister@itwm.fraunhofer.de> Signed-off-by: David S. Miller <davem@davemloft.net>
* af_ieee802154: fix check on broadcast addressAlexander Aring2014-03-201-1/+1
| | | | | | | | | | | | | | This patch fixes an issue which was introduced by commit b70ab2e87f17176d18f67ef331064441a032b5f3 ("ieee802154: enforce consistent endianness in the 802.15.4 stack"). The correct behaviour should be a check on the broadcast address field which is 0xffff. Signed-off-by: Alexander Aring <alex.aring@gmail.com> Reported-by: Jan Luebbe <jlu@pengutronix.de> Cc: Phoebe Buckheister <phoebe.buckheister@itwm.fraunhofer.de> Signed-off-by: David S. Miller <davem@davemloft.net>
* ieee802154: properly unshare skbs in ieee802154 *_rcv functionsPhoebe Buckheister2014-03-183-16/+21
| | | | | | | | | | | | ieee802154 sockets do not properly unshare received skbs, which leads to panics (at least) when they are used in conjunction with 6lowpan, so run skb_share_check on received skbs. 6lowpan also contains a use-after-free, which is trivially fixed by replacing the inlined skb_share_check with the explicit call. Signed-off-by: Phoebe Buckheister <phoebe.buckheister@itwm.fraunhofer.de> Tested-by: Alexander Aring <alex.aring@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* ieee802154: add proper length checks to header creationsPhoebe Buckheister2014-03-142-2/+2
| | | | | | | | | | | Have mac802154 header_ops.create fail with -EMSGSIZE if the length passed will be too large to fit a frame. Since 6lowpan will ensure that no packet payload will be too large, pass a length of 0 there. 802.15.4 dgram sockets will also return -EMSGSIZE on payloads larger than the device MTU instead of -EINVAL. Signed-off-by: Phoebe Buckheister <phoebe.buckheister@itwm.fraunhofer.de> Signed-off-by: David S. Miller <davem@davemloft.net>
* 6lowpan: move lowpan frag_info out of 802.15.4 headersPhoebe Buckheister2014-03-141-9/+18
| | | | | | | | | | Fragmentation and reassembly information for 6lowpan is independent from the 802.15.4 stack and used only by the 6lowpan reassembly process. Move the ieee802154_frag_info struct to a private are, it needn't be in the 802.15.4 skb control block. Signed-off-by: Phoebe Buckheister <phoebe.buckheister@itwm.fraunhofer.de> Signed-off-by: David S. Miller <davem@davemloft.net>
* ieee802154: use ieee802154_addr instead of *_sa variantsPhoebe Buckheister2014-03-145-101/+112
| | | | | | | | Change all internal uses of ieee802154_addr_sa to ieee802154_addr, except for those instances that communicate directly with userspace. Signed-off-by: Phoebe Buckheister <phoebe.buckheister@itwm.fraunhofer.de> Signed-off-by: David S. Miller <davem@davemloft.net>
* mac802154: use header operations to create/parse headersPhoebe Buckheister2014-03-145-53/+64
| | | | | | | | | | | | | | | | | Use the operations on 802.15.4 header structs introduced in a previous patch to create and parse all headers in the mac802154 stack. This patch reduces code duplication between different parts of the mac802154 stack that needed information from headers, and also fixes a few bugs that seem to have gone unnoticed until now: * 802.15.4 dgram sockets would return a slightly incorrect value for the SIOCINQ ioctl * mac802154 would not drop frames with the "security enabled" bit set, even though it does not support security, in violation of the standard Signed-off-by: Phoebe Buckheister <phoebe.buckheister@itwm.fraunhofer.de> Signed-off-by: David S. Miller <davem@davemloft.net>
* ieee802154: add header structs with endiannes and operationsPhoebe Buckheister2014-03-142-1/+289
| | | | | | | | | | | | | | | | This patch provides a set of structures to represent 802.15.4 MAC headers, and a set of operations to push/pull/peek these structs from skbs. We cannot simply pointer-cast the skb MAC header pointer to these structs, because 802.15.4 headers are wildly variable - depending on the first three bytes, virtually all other fields of the header may be present or not, and be present with different lengths. The new header creation/parsing routines also support 802.15.4 security headers, which are currently not supported by the mac802154 implementation of the protocol. Signed-off-by: Phoebe Buckheister <phoebe.buckheister@itwm.fraunhofer.de> Signed-off-by: David S. Miller <davem@davemloft.net>
* ieee802154: enforce consistent endianness in the 802.15.4 stackPhoebe Buckheister2014-03-145-25/+31
| | | | | | | | | | | | | | Enable sparse warnings about endianness, replace the remaining fields regarding network operations without explicit endianness annotations with such that are annotated, and propagate this through the entire stack. Uses of ieee802154_addr_sa are not changed yet, this patch is only concerned with all other fields (such as address filters, operation parameters and the likes). Signed-off-by: Phoebe Buckheister <phoebe.buckheister@itwm.fraunhofer.de> Signed-off-by: David S. Miller <davem@davemloft.net>
* ieee802154: rename struct ieee802154_addr to *_saPhoebe Buckheister2014-03-147-24/+25
| | | | | | | | | | | The struct as currently defined uses host byte order for some fields, and most big endian/EUI display byte order for other fields. Inside the stack, endianness should ideally match network byte order where possible to minimize the number of byteswaps done in critical paths, but this patch does not address this; it is only preparatory. Signed-off-by: Phoebe Buckheister <phoebe.buckheister@itwm.fraunhofer.de> Signed-off-by: David S. Miller <davem@davemloft.net>
* 6lowpan: reassembly: un-export local functionsFlorian Westphal2014-03-131-19/+11
| | | | | | | | | most of these are only used locally, make them static. fold lowpan_expire_frag_queue into its caller, its small enough. Cc: Alexander Aring <alex.aring@gmail.com> Signed-off-by: Florian Westphal <fw@strlen.de> Signed-off-by: David S. Miller <davem@davemloft.net>
* ieee802154: Convert uses of __constant_<foo> to <foo>Joe Perches2014-03-122-2/+2
| | | | | | | | | The use of __constant_<foo> has been unnecessary for quite awhile now. Make these uses consistent with the rest of the kernel. Signed-off-by: Joe Perches <joe@perches.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* 6lowpan: reassembly: fix access of ctl table entryAlexander Aring2014-03-101-1/+1
| | | | | | | | Correct offset is 3 of the 6lowpanfrag_max_datagram_size value in proc entry ctl table and not 2. Signed-off-by: Alexander Aring <alex.aring@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* 6lowpan: reassembly: fix return of init functionAlexander Aring2014-03-071-2/+3
| | | | | | | | | This patch adds a missing return after fragmentation init. Otherwise we register a sysctl interface and deregister it afterwards which makes no sense. Signed-off-by: Alexander Aring <alex.aring@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* 6lowpan: move 6lowpan header to include/netAlexander Aring2014-03-064-438/+3
| | | | | | | | | This header is used by bluetooth and ieee802154 branch. This patch move this header to the include/net directory to avoid a use of a relative path in include. Signed-off-by: Alexander Aring <alex.aring@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* 6lowpan: add missing include of net/ipv6.hAlexander Aring2014-03-061-0/+2
| | | | | | | | | The 6lowpan.h file contains some static inline function which use internal ipv6 api structs. Add a include of ipv6.h to be sure that it's known before. Signed-off-by: Alexander Aring <alex.aring@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* ieee802154: fix whitespace issues in KconfigAlexander Aring2014-03-041-1/+1
| | | | | | | | This patch fixes some whitespace issues in Kconfig files of IEEE 802.15.4 subsytem. Signed-off-by: Alexander Aring <alex.aring@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* 6lowpan: use memcpy to set tag value in fraghdrAlexander Aring2014-03-021-2/+1
| | | | | Signed-off-by: Alexander Aring <alex.aring@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* 6lowpan: remove initialization of tag valueAlexander Aring2014-03-021-1/+0
| | | | | | | | The initialization of the tag value doesn't matter at begin of fragmentation. This patch removes the initialization to zero. Signed-off-by: Alexander Aring <alex.aring@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* 6lowpan: fix type of datagram size parameterAlexander Aring2014-03-021-1/+1
| | | | | | | | Datagram size value is u16 because we convert it to host byte order and we need to read it. Only the tag value belongs to __be16 type. Signed-off-by: Alexander Aring <alex.aring@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* 6lowpan: handling 6lowpan fragmentation via inet_frag apiAlexander Aring2014-02-284-208/+680
| | | | | | | | | | | | This patch drops the current way of 6lowpan fragmentation on receiving side and replace it with a implementation which use the inet_frag api. The old fragmentation handling has some race conditions and isn't rfc4944 compatible. Also adding support to match fragments on destination address, source address, tag value and datagram_size which is missing in the current implementation. Signed-off-by: Alexander Aring <alex.aring@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* 6lowpan: fix some checkpatch issuesAlexander Aring2014-02-281-18/+9
| | | | | | | | | Detected with: ./scripts/checkpatch.pl --strict -f net/ieee802154/6lowpan_rtnl.c Signed-off-by: Alexander Aring <alex.aring@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* 6lowpan: move 6lowpan.c to 6lowpan_rtnl.cAlexander Aring2014-02-282-0/+1
| | | | | | | | | We have a 6lowpan.c file and 6lowpan.ko file. To avoid confusing we should move 6lowpan.c to 6lowpan_rtnl.c. Then we can support multiple source files for 6lowpan module. Signed-off-by: Alexander Aring <alex.aring@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* 6lowpan: change tag type to __be16Alexander Aring2014-02-281-2/+3
| | | | | Signed-off-by: Alexander Aring <alex.aring@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* 6lowpan: fix fragmentation on sending sideAlexander Aring2014-02-281-10/+27
| | | | | | | | | | | | | | | This patch fix the fragmentation on sending side according to rfc4944. Also add improvement to use the full payload of a PDU which calculate the nearest divided to 8 payload length for the fragmentation datagram size attribute. The main issue is that the datagram size of fragmentation header use the ipv6 payload length, but rfc4944 says it's the ipv6 payload length inclusive network header size (and transport header size if compressed). Signed-off-by: Alexander Aring <alex.aring@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* 6lowpan: add uncompress header size functionAlexander Aring2014-02-281-0/+113
| | | | | | | | | This patch add a lookup function for uncompressed 6LoWPAN header size. This is needed to estimate the real size after uncompress the 6LoWPAN header. Signed-off-by: Alexander Aring <alex.aring@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* ieee802154: fix faulty check in set_phy_params apiPhoebe Buckheister2014-02-181-2/+4
| | | | | | | | | | | | | | phy_set_csma_params has a redundant (and impossible) check for "retries", found by smatch. The check was supposed to be for frame_retries, but wasn't moved during development when phy_set_frame_retries was introduced. Also, maxBE >= 3 as required by the standard is not enforced. Remove the redundant check, assure max_be >= 3 and check -1 <= frame_retries <= 7 in the correct function. Signed-off-by: Phoebe Buckheister <phoebe.buckheister@itwm.fraunhofer.de> Signed-off-by: David S. Miller <davem@davemloft.net>
* ieee802154: add netlink APIs for smartMAC configurationPhoebe Buckheister2014-02-173-2/+78
| | | | | | | | | | | | | | | | | | | | | | | Introduce new netlink attributes for SET_PHY_ATTRS: * CSMA minimal backoff exponent * CSMA maximal backoff exponent * CSMA retry limit * frame retransmission limit The CSMA attributes shall correspond to minBE, maxBE and maxCSMABackoffs of 802.15.4, respectively. The frame retransmission shall correspond to maxFrameRetries of 802.15.4, unless given as -1: then the old behaviour of the stack shall apply. For RF2xy, the old behaviour is to not do channel sensing at all and simply send *right now*, which is not intended behaviour for most applications and actually prohibited for some channel/page combinations. For all values except frame retransmission limit, the defaults of 802.15.4 apply. Frame retransmission limits are set to -1 to indicate backward-compatible behaviour. Signed-off-by: Phoebe Buckheister <phoebe.buckheister@itwm.fraunhofer.de> Signed-off-by: David S. Miller <davem@davemloft.net>
* ieee802154: add support for setting CCA energy detection levelsPhoebe Buckheister2014-02-172-3/+28
| | | | | | | | | | | | | | | | | Since three of the four clear channel assesment modes make use of energy detection, provide an API to set the energy detection threshold. Driver support for this is available in at86rf230 for the RF212 chips. Since for these chips the minimal energy detection threshold depends on page and channel used, add a field to struct at86rf230_local that stores the minimal threshold. Actual ED thresholds are configured as offsets from this value. For RF212, setting the ED threshold will not work before a channel/page has been set due to the dependency of energy detection in the chip and the actual channel/page selected. Signed-off-by: Phoebe Buckheister <phoebe.buckheister@itwm.fraunhofer.de> Signed-off-by: David S. Miller <davem@davemloft.net>
* ieee802154: add support for CCA mode in wpan physPhoebe Buckheister2014-02-172-3/+30
| | | | | | | | | | The standard describes four modes of clear channel assesment: "energy above threshold", "carrier found", and the logical and/or of these two. Support for CCA mode setting is included in the at86rf230 driver, predicated for RF212 chips. Signed-off-by: Phoebe Buckheister <phoebe.buckheister@itwm.fraunhofer.de> Signed-off-by: David S. Miller <davem@davemloft.net>
* ieee802154: add support for listen-before-talk in wpan_phyPhoebe Buckheister2014-02-172-12/+47
| | | | | | | | | | | Listen-before-talk is an alternative to CSMA in uncoordinated networks and prescribed by european regulations if one wants to have a device with radio duty cycles above 10% (or less in some bands). Add a phy property to enable/disable LBT in the phy, including support in the at86rf230 driver for RF212 chips. Signed-off-by: Phoebe Buckheister <phoebe.buckheister@itwm.fraunhofer.de> Signed-off-by: David S. Miller <davem@davemloft.net>
* ieee802154: add TX power control to wpan_phyPhoebe Buckheister2014-02-175-4/+53
| | | | | | | | | | | | | | | | Replace the current u8 transmit_power in wpan_phy with s8 transmit_power. The u8 field contained the actual tx power and a tolerance field, which no physical radio every used. Adjust sysfs entries to keep compatibility with userspace, give tolerances of +-1dB statically there. This patch only adds support for this in the at86rf230 driver and the RF212 chip. Configuration calculation for RF212 is also somewhat basic, but does the job - the RF212 datasheet gives a large table with suggested values for combinations of TX power and page/channel, if this does not work well, we might have to copy the whole table. Signed-off-by: Phoebe Buckheister <phoebe.buckheister@itwm.fraunhofer.de> Signed-off-by: David S. Miller <davem@davemloft.net>
* 6lowpan: fix lockdep splatsEric Dumazet2014-02-101-0/+20
| | | | | | | | | | | | | | | | | | When a device ndo_start_xmit() calls again dev_queue_xmit(), lockdep can complain because dev_queue_xmit() is re-entered and the spinlocks protecting tx queues share a common lockdep class. Same issue was fixed for bonding/l2tp/ppp in commits 0daa2303028a6 ("[PATCH] bonding: lockdep annotation") 49ee49202b4ac ("bonding: set qdisc_tx_busylock to avoid LOCKDEP splat") 23d3b8bfb8eb2 ("net: qdisc busylock needs lockdep annotations ") 303c07db487be ("ppp: set qdisc_tx_busylock to avoid LOCKDEP splat ") Reported-by: Alexander Aring <alex.aring@gmail.com> Signed-off-by: Eric Dumazet <edumazet@google.com> Tested-by: Alexander Aring <alex.aring@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* 6lowpan: Remove unused pointer in lowpan_header_create()Christian Engelmayer2014-02-091-3/+0
| | | | | | | | | | Commit 8df8c56a (6lowpan: Moving generic compression code into 6lowpan_iphc.c) left pointer 'hdr' unused - remove it. Detected by Coverity: CID 1164868. Signed-off-by: Christian Engelmayer <cengelma@gmx.at> Signed-off-by: David S. Miller <davem@davemloft.net>
* net: 6lowpan: fixup for code movementStephen Rothwell2014-01-271-1/+1
| | | | | Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au> Signed-off-by: David S. Miller <davem@davemloft.net>
* 6lowpan: add a license to 6lowpan_iphc moduleYann Droneaud2014-01-221-0/+3
| | | | | | | | | | | | | | | | | | | | | Since commit 8df8c56a5abc, 6lowpan_iphc is a module of its own. Unfortunately, it lacks some infrastructure to behave like a good kernel citizen: kernel: 6lowpan_iphc: module license 'unspecified' taints kernel. kernel: Disabling lock debugging due to kernel taint This patch adds the basic MODULE_LICENSE(); with GPL license: the code was copied from net/ieee802154/6lowpan.c which is GPL and the module exports symbol with EXPORT_SYMBOL_GPL();. Cc: Jukka Rissanen <jukka.rissanen@linux.intel.com> Cc: Alexander Aring <alex.aring@gmail.com> Cc: Marcel Holtmann <marcel@holtmann.org> Signed-off-by: Yann Droneaud <ydroneaud@opteya.com> Acked-by: Marcel Holtmann <marcel@holtmann.org> Signed-off-by: David S. Miller <davem@davemloft.net>
* net: add build-time checks for msg->msg_name sizeSteffen Hurrle2014-01-181-3/+1
| | | | | | | | | | | | | | | This is a follow-up patch to f3d3342602f8bc ("net: rework recvmsg handler msg_name and msg_namelen logic"). DECLARE_SOCKADDR validates that the structure we use for writing the name information to is not larger than the buffer which is reserved for msg->msg_name (which is 128 bytes). Also use DECLARE_SOCKADDR consistently in sendmsg code paths. Signed-off-by: Steffen Hurrle <steffen@hurrle.net> Suggested-by: Hannes Frederic Sowa <hannes@stressinduktion.org> Acked-by: Hannes Frederic Sowa <hannes@stressinduktion.org> Signed-off-by: David S. Miller <davem@davemloft.net>
* Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/netDavid S. Miller2014-01-181-2/+4
|\ | | | | | | | | | | | | | | | | | | | | | | | | | | Conflicts: drivers/net/ethernet/broadcom/bnx2x/bnx2x_main.c net/ipv4/tcp_metrics.c Overlapping changes between the "don't create two tcp metrics objects with the same key" race fix in net and the addition of the destination address in the lookup key in net-next. Minor overlapping changes in bnx2x driver. Signed-off-by: David S. Miller <davem@davemloft.net>
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