- 05 2月, 2013 6 次提交
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由 Daniel Borkmann 提交于
It seems due to RCU usage, i.e. within SCTP's address binding list, a, say, ``behavioral change'' was introduced which does actually not conform to the RFC anymore. In particular consider the following (fictional) scenario to demonstrate this: do: Two SOCK_SEQPACKET-style sockets are opened (S1, S2) S1 is bound to 127.0.0.1, port 1024 [server] S2 is bound to 127.0.0.1, port 1025 [client] listen(2) is invoked on S1 From S2 we call one sendmsg(2) with msg.msg_name and msg.msg_namelen parameters set to the server's address S1, S2 are closed goto do The first pass of this loop passes successful, while the second round fails during binding of S1 (address still in use). What is happening? In the first round, the initial handshake is being done, and, at the time close(2) is called on S1, a non-graceful shutdown is performed via ABORT since in S1's receive queue an unprocessed packet is present, thus stating an error condition. This can be considered as a correct behavior. During close also all bound addresses are freed, thus nothing *must* be active anymore. In reference to RFC2960: After checking the Verification Tag, the receiving endpoint shall remove the association from its record, and shall report the termination to its upper layer. (9.1 Abort of an Association) Also, no half-open states are supported, thus after an ungraceful shutdown, we leave nothing behind. However, this seems not to be happening though. In a real-world scenario, this is exactly where it breaks the lksctp-tools functional test suite, *for instance*: ./test_sockopt test_sockopt.c 1 PASS : getsockopt(SCTP_STATUS) on a socket with no assoc test_sockopt.c 2 PASS : getsockopt(SCTP_STATUS) test_sockopt.c 3 PASS : getsockopt(SCTP_STATUS) with invalid associd test_sockopt.c 4 PASS : getsockopt(SCTP_STATUS) with NULL associd test_sockopt.c 5 BROK : bind: Address already in use The underlying problem is that sctp_endpoint_destroy() hasn't been triggered yet while the next bind attempt is being done. It will be triggered eventually (but too late) by sctp_transport_destroy_rcu() after one RCU grace period: sctp_transport_destroy() sctp_transport_destroy_rcu() ----. sctp_association_put() [*] <--+--> sctp_packet_free() sctp_association_destroy() [...] sctp_endpoint_put() skb->destructor sctp_endpoint_destroy() sctp_wfree() sctp_bind_addr_free() sctp_association_put() [*] Thus, we move out the condition with sctp_association_put() as well as the sctp_packet_free() invocation and the issue can be solved. We also better free the SCTP chunks first before putting the ref of the association. With this patch, the example above (which simulates a similar scenario as in the implementation of this test case) and therefore also the test suite run successfully through. Tested by myself. Cc: Vlad Yasevich <vyasevich@gmail.com> Signed-off-by: NDaniel Borkmann <dborkman@redhat.com> Acked-by: NVlad Yasevich <vyasevich@gmail.com> Acked-by: NNeil Horman <nhorman@tuxdriver.com> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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由 Vipul Pandya 提交于
Signed-off-by: NDivy Le Ray <divy@chelsio.com> Signed-off-by: NVipul Pandya <vipul@chelsio.com> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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由 Gao feng 提交于
reduce the permission check of bond device's ioctl. allow the userns root to control the bond device. Signed-off-by: NGao feng <gaofeng@cn.fujitsu.com> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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由 Gao feng 提交于
since the mdb table is belong to bridge device,and the bridge device can only be seen in one netns. So it's safe to allow unprivileged user which is the creator of userns and netns to modify the mdb table. Signed-off-by: NGao feng <gaofeng@cn.fujitsu.com> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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由 Gao feng 提交于
ebt_table is a private resource of netns, operating ebtables in one netns will not affect other netns, we can allow the creator user of userns and netns to change the ebtables. Signed-off-by: NGao feng <gaofeng@cn.fujitsu.com> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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由 Gao feng 提交于
Right now,only ixgdb,macvlan,vxlan and bridge implement fdb_add/fdb_del operations. these operations only operate the private data of net device. So allowing the unprivileged users who creates the userns and netns to add/del fdb entries will do no harm to other netns. Signed-off-by: NGao feng <gaofeng@cn.fujitsu.com> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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- 04 2月, 2013 1 次提交
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由 Alexey Khoroshilov 提交于
If stmmac_dvr_probe() fails in stmmac_pci_probe(), it breaks off initialization, deallocates all resources, but returns zero. The patch adds -ENODEV as return value in this case. Found by Linux Driver Verification project (linuxtesting.org). Signed-off-by: NAlexey Khoroshilov <khoroshilov@ispras.ru> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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- 03 2月, 2013 4 次提交
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git://git.kernel.org/pub/scm/linux/kernel/git/paulg/linux由 David S. Miller 提交于
Paul Gortmaker says: ==================== The removal of wanrouter code was originally listed in the (now gone) feature removal file since May 2012, and an RFC of the deletion was posted[1] in late 2012. The overall concept was given an OK, but defconfig contamination, build failures, etc. meant that it didn't quite make it into mainline for 3.8. Since that time, Dan discovered (via code audit) a runtime bug that proves nobody has been using this for over four years[2]. With that new information, I think it makes sense for someone to follow through on Joe's original RFC and get this done for the 3.9 release. In addition to resolving the build failures of the RFC by keeping stub headers, this also splits the change into two parts, just like the token ring removal did. Part #1 decouples the mainline kernel from the expired subsystem, and part #2 does the large scale deletion of the subsystem content. The advantage of the above, is that a "git blame" will never lead you to a 4000+ line deletion commit. The large scale deletion will never show up in a "git blame" and hence the same advantages that we get from the "--irreversible-delete" in the review stage of "git format-patch" are also embedded into the git history itself. This may seem like a moot point to some, but for those who spend a considerable amount of time data mining in the git history, this is probably worth doing. I have done build tests of all[mod/yes]config for both the stage 1 (Makefile and Kconfig) and stage 2 (full driver delete) as a sanity check, and the issues with the previously posted RFC should be gone. Speaking of "--irreversible-delete" -- these patches were created with that option, so if you want to use them locally, you are going to have to pull (location below) the content instead of doing a "git am" of the mailed out content. [1] http://patchwork.ozlabs.org/patch/198794/ [2] http://www.spinics.net/lists/netdev/msg218670.html ==================== Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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由 Dan Carpenter 提交于
We actually store the MAC address as well as the board_name here. The longest board_name is 75 characters so there is more than enough room to hold the 17 character MAC and the ": " divider. But making this buffer larger silences a static checker warning. Signed-off-by: NDan Carpenter <dan.carpenter@oracle.com> Acked-By: NJitendra Kalsaria <jitendra.kalsaria@qlogic.com> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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由 Mahesh Bandewar 提交于
When the interface does not have carrier but when it's put into loopback mode (for tests), it does not make sense to not have the carrier. So force it! Signed-off-by: NMahesh Bandewar <maheshb@google.com> Acked-by: NEilon Greenstein <eilong@broadcom.com> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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由 David S. Miller 提交于
Jeff Kirsher says: ==================== This series contains updates to ixgbe and e1000e. The ixgbe patches are a mix of fixes, cleanup and added functionality. The first fix is for traffic classes, where if the mapping has changed reset the NIC. The other ixgbe fix resolves an issue where the device lookup neglected to do a pci_dev_put() to decrement the device reference count. The ixgbe cleanup was done by Josh, where the auto-negotiation variables were renamed/cleaned up and refactored. The remaining patches are from Bruce to do additional cleanup on e1000e as well as bump the driver version. Most notably is the cleanup to use the kernel IEEE MII definitions where possible instead of the local MII definitions. ==================== Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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- 01 2月, 2013 24 次提交
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由 Bruce Allan 提交于
For standard IEEE MII-compatible transceivers, the kernel has generic register and bit definitions. Use those instead of redundant local defines. Do not replace references of MII_CR_SPEED_10 with BMCR_SPEED10 (0x0000) when it is not necessary (i.e. when it is bitwise OR'ed with another value). Some whitespace issues in the surrounding context of the above changes are also cleaned up. Signed-off-by: NBruce Allan <bruce.w.allan@intel.com> Tested-by: NAaron Brown <aaron.f.brown@intel.com> Signed-off-by: NJeff Kirsher <jeffrey.t.kirsher@intel.com>
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由 Bruce Allan 提交于
Remove the unused parameter when possible, otherwise use __always_unused attribute. Signed-off-by: NBruce Allan <bruce.w.allan@intel.com> Tested-by: NAaron Brown <aaron.f.brown@intel.com> Signed-off-by: NJeff Kirsher <jeffrey.t.kirsher@intel.com>
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由 Bruce Allan 提交于
Signed-off-by: NBruce Allan <bruce.w.allan@intel.com> Tested-by: NAaron Brown <aaron.f.brown@intel.com> Signed-off-by: NJeff Kirsher <jeffrey.t.kirsher@intel.com>
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由 Bruce Allan 提交于
Signed-off-by: NBruce Allan <bruce.w.allan@intel.com> Tested-by: NAaron Brown <aaron.f.brown@intel.com> Signed-off-by: NJeff Kirsher <jeffrey.t.kirsher@intel.com>
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由 Bruce Allan 提交于
For clarity, wrap OR'ed bit settings with parentheses. Signed-off-by: NBruce Allan <bruce.w.allan@intel.com> Tested-by: NAaron Brown <aaron.f.brown@intel.com> Signed-off-by: NJeff Kirsher <jeffrey.t.kirsher@intel.com>
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由 Bruce Allan 提交于
Remove redundant defines which are defined elsewhere. Signed-off-by: NBruce Allan <bruce.w.allan@intel.com> Tested-by: NAaron Brown <aaron.f.brown@intel.com> Signed-off-by: NJeff Kirsher <jeffrey.t.kirsher@intel.com>
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由 Josh Hay 提交于
Removes the autoneg parameter from the setup_link functions. Adds local variable autoneg to setup_link functions to be passed to get_link_capabilities functions if needed. Signed-off-by: NJosh Hay <joshua.a.hay@intel.com> Tested-by: NPhil Schmitt <phillip.j.schmitt@intel.com>
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由 Josh Hay 提交于
Removes the autoneg parameter from the setup_link_speed functions. These functions do nothing with this parameter. Signed-off-by: NJosh Hay <joshua.a.hay@intel.com> Tested-by: NPhil Schmitt <phillip.j.schmitt@intel.com> Signed-off-by: NJeff Kirsher <jeffrey.t.kirsher@intel.com>
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由 Josh Hay 提交于
Renames some autoneg/speed variables to be more consistent with check_link, get_link_capabilities, and setup_link function calls. Initializes instances of autoneg. Signed-off-by: NJosh Hay <joshua.a.hay@intel.com> Tested-by: NPhil Schmitt <phillip.j.schmitt@intel.com> Signed-off-by: NJeff Kirsher <jeffrey.t.kirsher@intel.com>
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由 Greg Rose 提交于
The device lookup neglected to do a pci_dev_put() to decrement the device reference count. Reported-by: NElena Gurevich <elena.gurevich@toganetworks.com> Signed-off-by: NGreg Rose <gregory.v.rose@intel.com> Tested-by: NPhil Schmitt <phillip.j.schmitt@intel.com> Tested-by: NSibai Li <sibai.li@intel.com> Signed-off-by: NJeff Kirsher <jeffrey.t.kirsher@intel.com>
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由 Amir Hanania 提交于
Check for up2tc change and call ixgbe_dcbnl_devreset() if the mapping has changed but the number of TC's in use has not changed. Signed-off-by: NAmir Hanania <amir.hanania@intel.com> Tested-by: NJack Morgan <jack.morgan@intel.com> Tested-by: NPhil Schmitt <phillip.j.schmitt@intel.com> Signed-off-by: NJeff Kirsher <jeffrey.t.kirsher@intel.com>
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由 Paul Gortmaker 提交于
The wanrouter support was identified earlier as unused for years, and so the previous commit totally decoupled it from the kernel, leaving the related wanrouter files present, but totally inert. Here we take the final step in that cleanup, by doing a wholesale removal of these files. The two step process is used so that the large deletion is decoupled from the git history of files that we still care about. The drivers deleted here all were dependent on the Kconfig setting CONFIG_WAN_ROUTER_DRIVERS. A stub wanrouter.h header (kernel & uapi) are left behind so that drivers/isdn/i4l/isdn_x25iface.c continues to compile, and so that we don't accidentally break userspace that expected these defines. Cc: Joe Perches <joe@perches.com> Cc: Dan Carpenter <dan.carpenter@oracle.com> Cc: Arnaldo Carvalho de Melo <acme@redhat.com> Signed-off-by: NPaul Gortmaker <paul.gortmaker@windriver.com>
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由 Paul Gortmaker 提交于
The original suggestion to delete wanrouter started earlier with the mainline commit f0d1b3c2 ("net/wanrouter: Deprecate and schedule for removal") in May 2012. More importantly, Dan Carpenter found[1] that the driver had a fundamental breakage introduced back in 2008, with commit 7be6065b ("netdevice wanrouter: Convert directly reference of netdev->priv"). So we know with certainty that the code hasn't been used by anyone willing to at least take the effort to send an e-mail report of breakage for at least 4 years. This commit does a decouple of the wanrouter subsystem, by going after the Makefile/Kconfig and similar files, so that these mainline files that we are keeping do not have the big wanrouter file/driver deletion commit tied into their history. Once this commit is in place, we then can remove the obsolete cyclomx drivers and similar that have a dependency on CONFIG_WAN_ROUTER_DRIVERS. [1] http://www.spinics.net/lists/netdev/msg218670.htmlOriginally-by: NJoe Perches <joe@perches.com> Cc: Dan Carpenter <dan.carpenter@oracle.com> Cc: Arnaldo Carvalho de Melo <acme@redhat.com> Signed-off-by: NPaul Gortmaker <paul.gortmaker@windriver.com>
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由 David S. Miller 提交于
Merge mlx4 bug fixes from Amir Vadai. Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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由 Amir Vadai 提交于
Under heavy CPU load, changing, ring size/mtu/etc. could result in transmit timeout, since stop-start port might take more than 10 seconds. Calling netif_detach_device to prevent tx queue transmit timeout. netif_detach_device() is not called under ndo_stop, because netif_carrier_off will prevent the timeout, and device should not be marked as not present, or else user won't be able to start it later on. CC: Ben Hutchings <bhutchings@solarflare.com> Signed-off-by: NEugenia Emantayev <eugenia@mellanox.com> Signed-off-by: NAmir Vadai <amirv@mellanox.com> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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由 Matan Barak 提交于
Mac reassignments should only be done when not supported by the firmware. To accomplish that, checking firmware capability bit to know whether we should reassign macs in the driver. Signed-off-by: NMatan Barak <matanb@mellanox.com> Signed-off-by: NAmir Vadai <amirv@mellanox.com> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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由 Hadar Hen Zion 提交于
The Firmware dynamically changes flow steering hash configuration from covering L2 only to "full" L2/L3/L4 mode needed. The dynamic change allows the driver to set hard coded hash configuration which is changed by the firmware from L2 to L2/L3/L4 when attaching the first L3/L4 flow steering rule and back to L2 when there are no more such rules. Signed-off-by: NHadar Hen Zion <hadarh@mellanox.com> Signed-off-by: NAmir Vadai <amirv@mellanox.com> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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由 Hadar Hen Zion 提交于
As part of the driver unload flow, all steering rules must be deleted, make sure to remove the rules that were set through ethtool. Signed-off-by: NHadar Hen Zion <hadarh@mellanox.com> Signed-off-by: NAmir Vadai <amirv@mellanox.com> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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由 Hadar Hen Zion 提交于
Attaching steering rules while the interface is down is an invalid operation, block it. Signed-off-by: NHadar Hen Zion <hadarh@mellanox.com> Signed-off-by: NAmir Vadai <amirv@mellanox.com> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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由 Hadar Hen Zion 提交于
The vlan mask field should be validated and assigned according to the field size which is 12 bits. Also replace the numeric 0xfff mask with existing kernel macro. Signed-off-by: NHadar Hen Zion <hadarh@mellanox.com> Signed-off-by: NAmir Vadai <amirv@mellanox.com> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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由 Hadar Hen Zion 提交于
When attaching flow steering rules via Ethtool accept only valid vlans IDs e.g in the range: [0,4095]. Signed-off-by: NHadar Hen Zion <hadarh@mellanox.com> Signed-off-by: NAmir Vadai <amirv@mellanox.com> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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由 Hadar Hen Zion 提交于
Destination mac is a mandatory specification for ip/udp steering rules. When attaching multicast steering rules via ethtool the unicast mac of the interface was added to the rule specification instead of the multicast mac. The following commit sets the corresponding multicast mac for the rule multicast ip. Signed-off-by: NHadar Hen Zion <hadarh@mellanox.com> Signed-off-by: NAmir Vadai <amirv@mellanox.com> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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由 Hadar Hen Zion 提交于
The allow_loopback flag was wrongly set using arithmetic bit operation, change the code to use logical bit operation. Signed-off-by: NHadar Hen Zion <hadarh@mellanox.com> Signed-off-by: NAmir Vadai <amirv@mellanox.com> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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由 Hadar Hen Zion 提交于
Some of the fields for struct mlx4_net_trans_rule_hw_ctrl were packed into u32 and accessed through bit field operations. Expose and access them directly as u8. Signed-off-by: NHadar Hen Zion <hadarh@mellanox.com> Signed-off-by: NAmir Vadai <amirv@mellanox.com> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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- 31 1月, 2013 5 次提交
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由 Yan Burman 提交于
Implement ethtool get_drvinfo. Signed-off-by: NYan Burman <yanb@mellanox.com> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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由 YOSHIFUJI Hideaki / 吉藤英明 提交于
Since all users are write-lock, it does not make sense to use rwlock here. Use simple spinlock. Signed-off-by: NYOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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由 YOSHIFUJI Hideaki / 吉藤英明 提交于
Signed-off-by: NYOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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由 YOSHIFUJI Hideaki / 吉藤英明 提交于
Signed-off-by: NYOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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由 YOSHIFUJI Hideaki / 吉藤英明 提交于
Signed-off-by: NYOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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