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* net: Add export.h for EXPORT_SYMBOL/THIS_MODULE to non-modulesPaul Gortmaker2011-10-31
| | | | | | | | | These files are non modular, but need to export symbols using the macros now living in export.h -- call out the include so that things won't break when we remove the implicit presence of module.h from everywhere. Signed-off-by: Paul Gortmaker <paul.gortmaker@windriver.com>
* 6LoWPAN: fix skb_copy callalex.bluesman.smirnov@gmail.com2011-09-15
| | | | | | | | | | | This patch fixes 2 issues in lowpan_skb_deliver function: 1. Check for return status of skb_copy call; 2. Use skb_copy with proper GFP flag, drop check for non-interrupt context. Signed-off-by: Alexander Smirnov <alex.bluesman.smirnov@gmail.com> Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* 6LoWPAN: call dev_put() on error in lowpan_newlink()Dan Carpenter2011-09-15
| | | | | | | We should release the dev_hold() on error before returning here. Signed-off-by: Dan Carpenter <error27@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* 6LoWPAN: use the _safe version of list_for_eachDan Carpenter2011-09-15
| | | | | | | | When we kfree(entry) that causes a use-after-free bug so we have to use list_for_each_entry_safe() safe here. Signed-off-by: Dan Carpenter <error27@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* 6LoWPAN: use kfree_skb() instead of kfree()Dan Carpenter2011-09-15
| | | | | | | Use kfree_skb() to free sbk_buffs. Signed-off-by: Dan Carpenter <error27@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* IEEE802.15.4: 6LoWPAN basic supportAlexander Smirnov2011-08-24
| | | | | | | | | | | | This patch provides base support for transmission of IPv6 packets as well as the formation of IPv6 link-local addresses and statelessly autoconfigured addresses on top of IEEE 802.15.4 networks. For more information please look at the RFC4944 "Compression Format for IPv6 Datagrams in Low Power and Losst Networks (6LoWPAN). Signed-off-by: Alexander Smirnov <alex.bluesman.smirnov@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* ieee802154: free skb buffer if dev isn't runningAlexander Smirnov2011-06-30
| | | | | Signed-off-by: Alexander Smirnov <alex.bluesman.smirnov@gmail.com> Signed-off-by: Dmitry Eremin-Solenikov <dbaryshkov@gmail.com>
* ieee802154: it's IEEE 802.15.4, not ZigBeeDmitry Eremin-Solenikov2011-06-30
| | | | Signed-off-by: Dmitry Eremin-Solenikov <dbaryshkov@gmail.com>
* ieee802154: support specifying hw address for created devicesDmitry Eremin-Solenikov2011-06-30
| | | | Signed-off-by: Dmitry Eremin-Solenikov <dbaryshkov@gmail.com>
* ieee802154: Don't leak memory in ieee802154_nl_fill_phyJesper Juhl2011-06-13
| | | | | | | | | | | | | | In net/ieee802154/nl-phy.c::ieee802154_nl_fill_phy() I see two small issues. 1) If the allocation of 'buf' fails we may just as well return -EMSGSIZE directly rather than jumping to 'out:' and do a pointless kfree(0). 2) We do not free 'buf' unless we jump to one of the error labels and this leaks memory. This patch should address both. Signed-off-by: Jesper Juhl <jj@chaosbits.net> Acked-by: Dmitry Eremin-Solenikov <dbaryshkov@gmail.com> Signed-off-by: David S. Miller <davem@conan.davemloft.net>
* ieee802154: Remove hacked CFLAGS in net/ieee802154/MakefileDavid S. Miller2011-04-12
| | | | | | | | | | | It adds -Wall (which the kernel carefully controls already) and of all things -DDEBUG (which should be set by other means if desired, please we have dynamic-debug these days). Kill this noise. Reported-by: Dave Jones <davej@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* net: RCU conversion of dev_getbyhwaddr() and arp_ioctl()Eric Dumazet2010-12-08
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Le dimanche 05 décembre 2010 à 09:19 +0100, Eric Dumazet a écrit : > Hmm.. > > If somebody can explain why RTNL is held in arp_ioctl() (and therefore > in arp_req_delete()), we might first remove RTNL use in arp_ioctl() so > that your patch can be applied. > > Right now it is not good, because RTNL wont be necessarly held when you > are going to call arp_invalidate() ? While doing this analysis, I found a refcount bug in llc, I'll send a patch for net-2.6 Meanwhile, here is the patch for net-next-2.6 Your patch then can be applied after mine. Thanks [PATCH] net: RCU conversion of dev_getbyhwaddr() and arp_ioctl() dev_getbyhwaddr() was called under RTNL. Rename it to dev_getbyhwaddr_rcu() and change all its caller to now use RCU locking instead of RTNL. Change arp_ioctl() to use RCU instead of RTNL locking. Note: this fix a dev refcount bug in llc Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* ieee802154: Fix possible NULL pointer dereference in wpan_phy_allocDenis Kirjanov2010-05-24
| | | | | | | Check for NULL pointer after kzalloc Signed-off-by: Denis Kirjanov <dkirjanov@kernel.org> Signed-off-by: David S. Miller <davem@davemloft.net>
* ieee802154: Fix oops during ieee802154_sock_ioctlStefan Schmidt2010-04-26
| | | | | | | | | | | | | | | Trying to run izlisten (from lowpan-tools tests) on a device that does not exists I got the oops below. The problem is that we are using get_dev_by_name without checking if we really get a device back. We don't in this case and writing to dev->type generates this oops. [Oops code removed by Dmitry Eremin-Solenikov] If possible this patch should be applied to the current -rc fixes branch. Signed-off-by: Stefan Schmidt <stefan@datenfreihafen.org> Signed-off-by: Dmitry Eremin-Solenikov <dbaryshkov@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-2.6Linus Torvalds2010-04-06
|\ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | * git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-2.6: (37 commits) smc91c92_cs: fix the problem of "Unable to find hardware address" r8169: clean up my printk uglyness net: Hook up cxgb4 to Kconfig and Makefile cxgb4: Add main driver file and driver Makefile cxgb4: Add remaining driver headers and L2T management cxgb4: Add packet queues and packet DMA code cxgb4: Add HW and FW support code cxgb4: Add register, message, and FW definitions netlabel: Fix several rcu_dereference() calls used without RCU read locks bonding: fix potential deadlock in bond_uninit() net: check the length of the socket address passed to connect(2) stmmac: add documentation for the driver. stmmac: fix kconfig for crc32 build error be2net: fix bug in vlan rx path for big endian architecture be2net: fix flashing on big endian architectures be2net: fix a bug in flashing the redboot section bonding: bond_xmit_roundrobin() fix drivers/net: Add missing unlock net: gianfar - align BD ring size console messages net: gianfar - initialize per-queue statistics ...
| * net: check the length of the socket address passed to connect(2)Changli Gao2010-04-01
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | check the length of the socket address passed to connect(2). Check the length of the socket address passed to connect(2). If the length is invalid, -EINVAL will be returned. Signed-off-by: Changli Gao <xiaosuo@gmail.com> ---- net/bluetooth/l2cap.c | 3 ++- net/bluetooth/rfcomm/sock.c | 3 ++- net/bluetooth/sco.c | 3 ++- net/can/bcm.c | 3 +++ net/ieee802154/af_ieee802154.c | 3 +++ net/ipv4/af_inet.c | 5 +++++ net/netlink/af_netlink.c | 3 +++ 7 files changed, 20 insertions(+), 3 deletions(-) Signed-off-by: David S. Miller <davem@davemloft.net>
* | include cleanup: Update gfp.h and slab.h includes to prepare for breaking ↵Tejun Heo2010-03-30
|/ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | implicit slab.h inclusion from percpu.h percpu.h is included by sched.h and module.h and thus ends up being included when building most .c files. percpu.h includes slab.h which in turn includes gfp.h making everything defined by the two files universally available and complicating inclusion dependencies. percpu.h -> slab.h dependency is about to be removed. Prepare for this change by updating users of gfp and slab facilities include those headers directly instead of assuming availability. As this conversion needs to touch large number of source files, the following script is used as the basis of conversion. http://userweb.kernel.org/~tj/misc/slabh-sweep.py The script does the followings. * Scan files for gfp and slab usages and update includes such that only the necessary includes are there. ie. if only gfp is used, gfp.h, if slab is used, slab.h. * When the script inserts a new include, it looks at the include blocks and try to put the new include such that its order conforms to its surrounding. It's put in the include block which contains core kernel includes, in the same order that the rest are ordered - alphabetical, Christmas tree, rev-Xmas-tree or at the end if there doesn't seem to be any matching order. * If the script can't find a place to put a new include (mostly because the file doesn't have fitting include block), it prints out an error message indicating which .h file needs to be added to the file. The conversion was done in the following steps. 1. The initial automatic conversion of all .c files updated slightly over 4000 files, deleting around 700 includes and adding ~480 gfp.h and ~3000 slab.h inclusions. The script emitted errors for ~400 files. 2. Each error was manually checked. Some didn't need the inclusion, some needed manual addition while adding it to implementation .h or embedding .c file was more appropriate for others. This step added inclusions to around 150 files. 3. The script was run again and the output was compared to the edits from #2 to make sure no file was left behind. 4. Several build tests were done and a couple of problems were fixed. e.g. lib/decompress_*.c used malloc/free() wrappers around slab APIs requiring slab.h to be added manually. 5. The script was run on all .h files but without automatically editing them as sprinkling gfp.h and slab.h inclusions around .h files could easily lead to inclusion dependency hell. Most gfp.h inclusion directives were ignored as stuff from gfp.h was usually wildly available and often used in preprocessor macros. Each slab.h inclusion directive was examined and added manually as necessary. 6. percpu.h was updated not to include slab.h. 7. Build test were done on the following configurations and failures were fixed. CONFIG_GCOV_KERNEL was turned off for all tests (as my distributed build env didn't work with gcov compiles) and a few more options had to be turned off depending on archs to make things build (like ipr on powerpc/64 which failed due to missing writeq). * x86 and x86_64 UP and SMP allmodconfig and a custom test config. * powerpc and powerpc64 SMP allmodconfig * sparc and sparc64 SMP allmodconfig * ia64 SMP allmodconfig * s390 SMP allmodconfig * alpha SMP allmodconfig * um on x86_64 SMP allmodconfig 8. percpu.h modifications were reverted so that it could be applied as a separate patch and serve as bisection point. Given the fact that I had only a couple of failures from tests on step 6, I'm fairly confident about the coverage of this conversion patch. If there is a breakage, it's likely to be something in one of the arch headers which should be easily discoverable easily on most builds of the specific arch. Signed-off-by: Tejun Heo <tj@kernel.org> Guess-its-ok-by: Christoph Lameter <cl@linux-foundation.org> Cc: Ingo Molnar <mingo@redhat.com> Cc: Lee Schermerhorn <Lee.Schermerhorn@hp.com>
* net: use net_eq to compare netsOctavian Purdila2009-11-25
| | | | | | | | | | | | | | | | | | | | | | | Generated with the following semantic patch @@ struct net *n1; struct net *n2; @@ - n1 == n2 + net_eq(n1, n2) @@ struct net *n1; struct net *n2; @@ - n1 != n2 + !net_eq(n1, n2) applied over {include,net,drivers/net}. Signed-off-by: Octavian Purdila <opurdila@ixiacom.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* Merge branch 'for-next' of ↵David S. Miller2009-11-14
|\ | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/lowpan/lowpan
| * ieee802154: make wpan-phy class registration to subsys_initcallDmitry Eremin-Solenikov2009-11-12
| | | | | | | | | | | | | | | | Move ieee802154 initialisation to subsys_initcall call, so that wpan-phy class is initialised before all devices (thus saving us from oops during bootup). Signed-off-by: Dmitry Eremin-Solenikov <dbaryshkov@gmail.com>
* | Merge branch 'for-next' of ↵David S. Miller2009-11-06
|\| | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/lowpan/lowpan
| * ieee802154: add support for creation/removal of logic interfacesDmitry Eremin-Solenikov2009-11-06
| | | | | | | | | | | | | | | | Add support for two more NL802154 commands: ADD_IFACE and DEL_IFACE, thus allowing creation and removal of logic WPAN interfaces on the top of wpan-phy. Signed-off-by: Dmitry Eremin-Solenikov <dbaryshkov@gmail.com>
| * ieee802154: add PHY_NAME to LIST_IFACE command resultsDmitry Eremin-Solenikov2009-11-06
| | | | | | | | Signed-off-by: Dmitry Eremin-Solenikov <dbaryshkov@gmail.com>
| * ieee802154: add two nl802154 helpersDmitry Eremin-Solenikov2009-11-06
| | | | | | | | | | | | Add two nl802154 helpers: one for starting a reply message, one for sending. Signed-off-by: Dmitry Eremin-Solenikov <dbaryshkov@gmail.com>
| * ieee802154: add LIST_PHY command supportDmitry Eremin-Solenikov2009-11-06
| | | | | | | | | | | | | | Add nl802154 command to get information about PHY's present in the system. Signed-off-by: Dmitry Eremin-Solenikov <dbaryshkov@gmail.com>
| * ieee802154: split away MAC commands implementationDmitry Eremin-Solenikov2009-11-06
| | | | | | | | | | | | | | Move all mac-related stuff to separate file so that ieee802154/netlink.c contains only generic code. Signed-off-by: Dmitry Eremin-Solenikov <dbaryshkov@gmail.com>
| * ieee802154: merge nl802154 and wpan-class in single moduleDmitry Eremin-Solenikov2009-11-06
| | | | | | | | | | | | | | There is no real need to have ieee802154 interfaces separate into several small modules, as neither of them has it's own use. Signed-off-by: Dmitry Eremin-Solenikov <dbaryshkov@gmail.com>
| * wpan-phy: follow usual patter of devices registrationDmitry Eremin-Solenikov2009-11-06
| | | | | | | | | | | | | | | | Follow the usual pattern of devices registration by adding new function (wpan_phy_set_dev) that sets child->parent relationship and removing parent argument from wpan_phy_register call. Signed-off-by: Dmitry Eremin-Solenikov <dbaryshkov@gmail.com>
| * wpan-phy: allow specifying a per-page channel maskDmitry Eremin-Solenikov2009-11-06
| | | | | | | | | | | | | | | | IEEE 802.15.4-2006 defines channel pages that hold channels (max 32 pages, 27 channels per page). Allow the driver to specify supported channels on pages, other than the first one. Signed-off-by: Dmitry Eremin-Solenikov <dbaryshkov@gmail.com>
| * wpan-phy: use snprintf to limit the amount of chars writtenDmitry Eremin-Solenikov2009-11-06
| | | | | | | | | | | | Use snprintf to limit the amount of chars put in the buffer for attr -> show. Signed-off-by: Dmitry Eremin-Solenikov <dbaryshkov@gmail.com>
| * wpan-phy: init channel/page fieldsDmitry Eremin-Solenikov2009-11-06
| | | | | | | | | | | | | | | | Set page to zero (for compatibility w/ devices supporting only first page). Also init channel by default to -1 to disallow transfers for non-initialised devices. Signed-off-by: Dmitry Eremin-Solenikov <dbaryshkov@gmail.com>
| * wpan-phy: add wpan-phy iteration functionsDmitry Eremin-Solenikov2009-11-06
| | | | | | | | | | | | Add API to iterate over the wpan-phy instances. Signed-off-by: Dmitry Eremin-Solenikov <dbaryshkov@gmail.com>
* | net: pass kern to net_proto_family create functionEric Paris2009-11-06
|/ | | | | | | | | | | The generic __sock_create function has a kern argument which allows the security system to make decisions based on if a socket is being created by the kernel or by userspace. This patch passes that flag to the net_proto_family specific create function, so it can do the same thing. Signed-off-by: Eric Paris <eparis@redhat.com> Acked-by: Arnaldo Carvalho de Melo <acme@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* net: sk_drops consolidationEric Dumazet2009-10-14
| | | | | | | | | | | sock_queue_rcv_skb() can update sk_drops itself, removing need for callers to take care of it. This is more consistent since sock_queue_rcv_skb() also reads sk_drops when queueing a skb. This adds sk_drops managment to many protocols that not cared yet. Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* net: Generalize socket rx gap / receive queue overflow cmsgNeil Horman2009-10-12
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Create a new socket level option to report number of queue overflows Recently I augmented the AF_PACKET protocol to report the number of frames lost on the socket receive queue between any two enqueued frames. This value was exported via a SOL_PACKET level cmsg. AFter I completed that work it was requested that this feature be generalized so that any datagram oriented socket could make use of this option. As such I've created this patch, It creates a new SOL_SOCKET level option called SO_RXQ_OVFL, which when enabled exports a SOL_SOCKET level cmsg that reports the nubmer of times the sk_receive_queue overflowed between any two given frames. It also augments the AF_PACKET protocol to take advantage of this new feature (as it previously did not touch sk->sk_drops, which this patch uses to record the overflow count). Tested successfully by me. Notes: 1) Unlike my previous patch, this patch simply records the sk_drops value, which is not a number of drops between packets, but rather a total number of drops. Deltas must be computed in user space. 2) While this patch currently works with datagram oriented protocols, it will also be accepted by non-datagram oriented protocols. I'm not sure if thats agreeable to everyone, but my argument in favor of doing so is that, for those protocols which aren't applicable to this option, sk_drops will always be zero, and reporting no drops on a receive queue that isn't used for those non-participating protocols seems reasonable to me. This also saves us having to code in a per-protocol opt in mechanism. 3) This applies cleanly to net-next assuming that commit 977750076d98c7ff6cbda51858bb5a5894a9d9ab (my af packet cmsg patch) is reverted Signed-off-by: Neil Horman <nhorman@tuxdriver.com> Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* net: mark net_proto_ops as constStephen Hemminger2009-10-07
| | | | | | | All usages of structure net_proto_ops should be declared const. Signed-off-by: Stephen Hemminger <shemminger@vyatta.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* net: Make setsockopt() optlen be unsigned.David S. Miller2009-09-30
| | | | | | | | | | | | This provides safety against negative optlen at the type level instead of depending upon (sometimes non-trivial) checks against this sprinkled all over the the place, in each and every implementation. Based upon work done by Arjan van de Ven and feedback from Linus Torvalds. Signed-off-by: David S. Miller <davem@davemloft.net>
* ieee802154: add locking for seq numbersDmitry Eremin-Solenikov2009-09-15
| | | | Signed-off-by: Dmitry Eremin-Solenikov <dbaryshkov@gmail.com>
* af_ieee802154: setsockopt optlen arg isn't __userDmitry Eremin-Solenikov2009-09-15
| | | | | | Remove __user annotation from optlen arg as it's bogus. Signed-off-by: Dmitry Eremin-Solenikov <dbaryshkov@gmail.com>
* Drop ARPHRD_IEEE802154_PHYDmitry Eremin-Solenikov2009-08-19
| | | | | | | There are not maste devices in mac802154 anymore, so drop ARPHRD_IEEE802154_PHY definition. Signed-off-by: Dmitry Eremin-Solenikov <dbaryshkov@gmail.com>
* ieee802154: add support for channel pages from IEEE 802.15.4-2006Dmitry Eremin-Solenikov2009-08-19
| | | | | | | IEEE 802.15.4-2006 adds new concept: channel pages, which can contain several channels. Add support for channel pages in the API and in the fakehard driver. Signed-off-by: Dmitry Eremin-Solenikov <dbaryshkov@gmail.com>
* ieee802154: add a sysfs representation of WPAN master devicesDmitry Eremin-Solenikov2009-08-19
| | | | | | Add a sysfs/in-kernel representation of LR-WPAN master devices. Signed-off-by: Dmitry Eremin-Solenikov <dbaryshkov@gmail.com>
* nl802154: support START-CONFIRM primitiveDmitry Baryshkov2009-08-13
| | | | | Signed-off-by: Dmitry Eremin-Solenikov <dbaryshkov@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* af_ieee802154: add support for WANT_ACK socket optionDmitry Baryshkov2009-08-13
| | | | | Signed-off-by: Dmitry Eremin-Solenikov <dbaryshkov@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* af_ieee802154: minor cleanup in dgram_bindDmitry Baryshkov2009-08-13
| | | | | | | | 1) fix ro->bound protection by socket lock 2) make ro->bound bit instead of int Signed-off-by: Dmitry Eremin-Solenikov <dbaryshkov@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* nl802154: add support for dumping WPAN interface informationDmitry Baryshkov2009-08-13
| | | | | Signed-off-by: Dmitry Eremin-Solenikov <dbaryshkov@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* nl802154: make ieee802154_policy constantDmitry Baryshkov2009-08-12
| | | | | Signed-off-by: Dmitry Eremin-Solenikov <dbaryshkov@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* Merge branch 'master' of ↵David S. Miller2009-08-12
|\ | | | | | | | | | | | | master.kernel.org:/pub/scm/linux/kernel/git/davem/net-2.6 Conflicts: arch/microblaze/include/asm/socket.h
| * af_ieee802154: provide dummy get/setsockoptDmitry Eremin-Solenikov2009-08-06
| | | | | | | | | | | | | | Provide dummt get/setsockopt implementations to stop these syscalls from oopsing on our sockets. Signed-off-by: Dmitry Eremin-Solenikov <dbaryshkov@gmail.com>
| * af_ieee802154: fix ioctl processingDmitry Eremin-Solenikov2009-08-06
| | | | | | | | | | | | | | | | fix two errors in ioctl processing: 1) if the ioctl isn't supported one should return -ENOIOCTLCMD 2) don't call ndo_do_ioctl if the device doesn't provide it Signed-off-by: Dmitry Eremin-Solenikov <dbaryshkov@gmail.com>
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