- 19 Mar, 2019 38 commits
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Stephen Suryaputra authored
IPv4 has icmp_echo_ignore_broadcast to prevent responding to broadcast pings. IPv6 needs a similar mechanism. v1->v2: - Remove NET_IPV6_ICMP_ECHO_IGNORE_MULTICAST. Signed-off-by:
Stephen Suryaputra <ssuryaextr@gmail.com> Signed-off-by:
David S. Miller <davem@davemloft.net>
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Wolfram Sang authored
We should get 'driver_data' from 'struct device' directly. Going via platform_device is an unneeded step back and forth. Signed-off-by:
Wolfram Sang <wsa+renesas@sang-engineering.com> Signed-off-by:
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YueHaibing authored
Fix sparse warning: drivers/net/ethernet/pasemi/pasemi_mac.c:1842:5: warning: symbol 'pasemi_mac_init_module' was not declared. Should it be static? Signed-off-by:
YueHaibing <yuehaibing@huawei.com> Signed-off-by:
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Guillaume Nault authored
Since the request socket is created locally, it'd make more sense to use reqsk_free() instead of reqsk_put() in TFO and syncookies' error path. However, tcp_get_cookie_sock() may set ->rsk_refcnt before freeing the socket; tcp_conn_request() may also have non-null ->rsk_refcnt because of tcp_try_fastopen(). In both cases 'req' hasn't been exposed to the outside world and is safe to free immediately, but that'd trigger the WARN_ON_ONCE in reqsk_free(). Define __reqsk_free() for these situations where we know nobody's referencing the socket, even though ->rsk_refcnt might be non-null. Now we can consolidate the error path of tcp_get_cookie_sock() and tcp_conn_request(). Signed-off-by:
Guillaume Nault <gnault@redhat.com> Signed-off-by:
Eric Dumazet <edumazet@google.com> Signed-off-by:
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YueHaibing authored
Fix sparse warning: net/core/datagram.c:411:5: warning: symbol '__skb_datagram_iter' was not declared. Should it be static? Signed-off-by:
Sagi Grimberg <sagi@grimberg.me> Signed-off-by:
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YueHaibing authored
Fix sparse warning: drivers/net/ethernet/hisilicon/hns3/hns3vf/hclgevf_main.c:407:6: warning: symbol 'hclgevf_update_link_mode' was not declared. Should it be static? Signed-off-by:
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YueHaibing authored
Fix sparse warning: drivers/net/ethernet/ibm/ibmveth.c:96:21: warning: symbol 'ibmveth_stats' was not declared. Should it be static? Signed-off-by:
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Eric Dumazet authored
TCP ipv6 fast path dereferences a pointer to get to the inet6 part of a tcp socket, but given the fixed memory placement, we can do better and avoid a possible cache line miss. This also reduces register pressure, since we let the compiler know about this memory placement. Signed-off-by:
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Murilo Fossa Vicentini authored
The ibmvnic driver currently reports a fixed value for both speed and duplex settings regardless of the actual backing device that is being used. By adding support to the QUERY_PHYS_PARMS command defined by the PAPR+ we can query the current physical port state and report the proper values for these feilds. Reported-by:
Abdul Haleem <abdhalee@linux.vnet.ibm.com> Signed-off-by:
Murilo Fossa Vicentini <muvic@linux.ibm.com> Reviewed-by:
Mauro S. M. Rodrigues <maurosr@linux.vnet.ibm.com> Signed-off-by:
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Hoang Le authored
Currently, a multicast stream may start out using replicast, because there are few destinations, and then it should ideally switch to L2/broadcast IGMP/multicast when the number of destinations grows beyond a certain limit. The opposite should happen when the number decreases below the limit. To eliminate the risk of message reordering caused by method change, a sending socket must stick to a previously selected method until it enters an idle period of 5 seconds. Means there is a 5 seconds pause in the traffic from the sender socket. If the sender never makes such a pause, the method will never change, and transmission may become very inefficient as the cluster grows. With this commit, we allow such a switch between replicast and broadcast without any need for a traffic pause. Solution is to send a dummy message with only the header, also with the SYN bit set, via broadcast or replicast. For the data message, the SYN bit is set and sending via replicast or broadcast (inverse method with dummy). Then, at receiving side any messages follow first SYN bit message (data or dummy message), they will be held in deferred queue until another pair (dummy or data message) arrived in other link. v2: reverse christmas tree declaration Acked-by:
Jon Maloy <jon.maloy@ericsson.com> Signed-off-by:
Hoang Le <hoang.h.le@dektech.com.au> Signed-off-by:
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Hoang Le authored
As a preparation for introducing a smooth switching between replicast and broadcast method for multicast message, We have to introduce a new capability flag TIPC_MCAST_RBCTL to handle this new feature. During a cluster upgrade a node can come back with this new capabilities which also must be reflected in the cluster capabilities field. The new feature is only applicable if all node in the cluster supports this new capability. Acked-by:
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Hoang Le authored
Currently, a multicast stream uses either broadcast or replicast as transmission method, based on the ratio between number of actual destinations nodes and cluster size. However, when an L2 interface (e.g., VXLAN) provides pseudo broadcast support, this becomes very inefficient, as it blindly replicates multicast packets to all cluster/subnet nodes, irrespective of whether they host actual target sockets or not. The TIPC multicast algorithm is able to distinguish real destination nodes from other nodes, and hence provides a smarter and more efficient method for transferring multicast messages than pseudo broadcast can do. Because of this, we now make it possible for users to force the broadcast link to permanently switch to using replicast, irrespective of which capabilities the bearer provides, or pretend to provide. Conversely, we also make it possible to force the broadcast link to always use true broadcast. While maybe less useful in deployed systems, this may at least be useful for testing the broadcast algorithm in small clusters. We retain the current AUTOSELECT ability, i.e., to let the broadcast link automatically select which algorithm to use, and to switch back and forth between broadcast and replicast as the ratio between destination node number and cluster size changes. This remains the default method. Furthermore, we make it possible to configure the threshold ratio for such switches. The default ratio is now set to 10%, down from 25% in the earlier implementation. Acked-by:
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Peter Xu authored
The variable is never used. CC: Michael S. Tsirkin <mst@redhat.com> CC: Jason Wang <jasowang@redhat.com> CC: virtualization@lists.linux-foundation.org CC: netdev@vger.kernel.org CC: linux-kernel@vger.kernel.org Signed-off-by:
Peter Xu <peterx@redhat.com> Signed-off-by:
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Florian Fainelli authored
Provide an explanation of what is expected with respect to sending new versions of specific patches within a patch series, as well as what happens if an earlier patch series accidentally gets merged). Signed-off-by:
Florian Fainelli <f.fainelli@gmail.com> Signed-off-by:
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David S. Miller authored
Julian Wiedmann says: ==================== s390/qeth: fixes 2019-03-18 please apply the following three patches to -net. The first two are fixes for minor race conditions in the probe code, while the third one gets dropwatch working (again). ==================== Signed-off-by: -
Julian Wiedmann authored
As part of the TX completion path, qeth_release_skbs() frees the completed skbs with __skb_queue_purge(). This ends in kfree_skb(), reporting every completed skb as dropped. On the other hand when dropping an skb in .ndo_start_xmit, we end up calling consume_skb()... where we should be using kfree_skb() so that drop monitors get notified. Switch the drop/consume logic around, and also don't accumulate dropped packets in the tx_errors statistics. Fixes: dc149e37 ("s390/qeth: replace open-coded skb_queue_walk()") Signed-off-by:
Julian Wiedmann <jwi@linux.ibm.com> Signed-off-by:
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Julian Wiedmann authored
The ucast IP table is utilized by some of the L3-specific sysfs attributes that qeth_l3_create_device_attributes() provides. So initialize the table _before_ registering the attributes. Fixes: ebccc739 ("s390/qeth: add missing hash table initializations") Signed-off-by:
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Julian Wiedmann authored
The HW trap and VNICC configuration is exposed via sysfs, and may have already been modified when qeth_l?_probe_device() attempts to initialize them. So (1) initialize the VNICC values a little earlier, and (2) don't bother about the HW trap mode, it was already initialized before. Signed-off-by:
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Bjorn Helgaas authored
The device ID alone does not uniquely identify a device. Test both the vendor and device ID to make sure we don't mistakenly think some other vendor's 0xB410 device is a Digium HFC4S. Also, instead of the bare hex ID, use the same constant (PCI_DEVICE_ID_DIGIUM_HFC4S) used in the device ID table. No functional change intended. Signed-off-by:
Bjorn Helgaas <bhelgaas@google.com> Signed-off-by:
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David S. Miller authored
Xin Long says: ==================== sctp: fix ignoring asoc_id for tcp-style sockets on some setsockopts This is a patchset to fix ignoring asoc_id for tcp-style sockets on some setsockopts, introduced by SCTP_CURRENT_ASSOC of the patchset: [net-next,00/24] sctp: support SCTP_FUTURE/CURRENT/ALL_ASSOC (https://patchwork.ozlabs.org/cover/1031706/) As Marcelo suggested, we fix it on each setsockopt that is using SCTP_CURRENT_ASSOC one by one by adding the check: if (sctp_style(sk, TCP)) xxx.xxx_assoc_id = SCTP_FUTURE_ASSOC; so that assoc_id will be completely ingored for tcp-style socket on setsockopts, and works as SCTP_FUTURE_ASSOC. ==================== Signed-off-by:
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Xin Long authored
A similar fix as Patch "sctp: fix ignoring asoc_id for tcp-style sockets on SCTP_DEFAULT_SEND_PARAM sockopt" on SCTP_STREAM_SCHEDULER sockopt. Fixes: 7efba10d ("sctp: add SCTP_FUTURE_ASOC and SCTP_CURRENT_ASSOC for SCTP_STREAM_SCHEDULER sockopt") Signed-off-by:
Xin Long <lucien.xin@gmail.com> Signed-off-by:
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Xin Long authored
A similar fix as Patch "sctp: fix ignoring asoc_id for tcp-style sockets on SCTP_DEFAULT_SEND_PARAM sockopt" on SCTP_EVENT sockopt. Fixes: d251f05e ("sctp: use SCTP_FUTURE_ASSOC and add SCTP_CURRENT_ASSOC for SCTP_EVENT sockopt") Signed-off-by:
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Xin Long authored
A similar fix as Patch "sctp: fix ignoring asoc_id for tcp-style sockets on SCTP_DEFAULT_SEND_PARAM sockopt" on SCTP_ENABLE_STREAM_RESET sockopt. Fixes: 99a62135 ("sctp: use SCTP_FUTURE_ASSOC and add SCTP_CURRENT_ASSOC for SCTP_ENABLE_STREAM_RESET sockopt") Signed-off-by:
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Xin Long authored
A similar fix as Patch "sctp: fix ignoring asoc_id for tcp-style sockets on SCTP_DEFAULT_SEND_PARAM sockopt" on SCTP_DEFAULT_PRINFO sockopt. Fixes: 3a583059 ("sctp: use SCTP_FUTURE_ASSOC and add SCTP_CURRENT_ASSOC for SCTP_DEFAULT_PRINFO sockopt") Signed-off-by:
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Xin Long authored
A similar fix as Patch "sctp: fix ignoring asoc_id for tcp-style sockets on SCTP_DEFAULT_SEND_PARAM sockopt" on SCTP_AUTH_DEACTIVATE_KEY sockopt. Fixes: 2af66ff3 ("sctp: use SCTP_FUTURE_ASSOC and add SCTP_CURRENT_ASSOC for SCTP_AUTH_DEACTIVATE_KEY sockopt") Signed-off-by:
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Xin Long authored
A similar fix as Patch "sctp: fix ignoring asoc_id for tcp-style sockets on SCTP_DEFAULT_SEND_PARAM sockopt" on SCTP_AUTH_DELETE_KEY sockopt. Fixes: 3adcc300 ("sctp: use SCTP_FUTURE_ASSOC and add SCTP_CURRENT_ASSOC for SCTP_AUTH_DELETE_KEY sockopt") Signed-off-by:
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Xin Long authored
A similar fix as Patch "sctp: fix ignoring asoc_id for tcp-style sockets on SCTP_DEFAULT_SEND_PARAM sockopt" on SCTP_AUTH_ACTIVE_KEY sockopt. Fixes: bf9fb6ad ("sctp: use SCTP_FUTURE_ASSOC and add SCTP_CURRENT_ASSOC for SCTP_AUTH_ACTIVE_KEY sockopt") Signed-off-by:
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Xin Long authored
A similar fix as Patch "sctp: fix ignoring asoc_id for tcp-style sockets on SCTP_DEFAULT_SEND_PARAM sockopt" on SCTP_AUTH_KEY sockopt. Fixes: 7fb3be13 ("sctp: use SCTP_FUTURE_ASSOC and add SCTP_CURRENT_ASSOC for SCTP_AUTH_KEY sockopt") Signed-off-by:
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Xin Long authored
A similar fix as Patch "sctp: fix ignoring asoc_id for tcp-style sockets on SCTP_DEFAULT_SEND_PARAM sockopt" on SCTP_MAX_BURST sockopt. Fixes: e0651a0d ("sctp: use SCTP_FUTURE_ASSOC and add SCTP_CURRENT_ASSOC for SCTP_MAX_BURST sockopt") Signed-off-by:
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Xin Long authored
A similar fix as Patch "sctp: fix ignoring asoc_id for tcp-style sockets on SCTP_DEFAULT_SEND_PARAM sockopt" on SCTP_CONTEXT sockopt. Fixes: 49b037ac ("sctp: use SCTP_FUTURE_ASSOC and add SCTP_CURRENT_ASSOC for SCTP_CONTEXT sockopt") Signed-off-by:
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Xin Long authored
A similar fix as Patch "sctp: fix ignoring asoc_id for tcp-style sockets on SCTP_DEFAULT_SEND_PARAM sockopt" on SCTP_DEFAULT_SNDINFO sockopt. Fixes: 92fc3bd9 ("sctp: use SCTP_FUTURE_ASSOC and add SCTP_CURRENT_ASSOC for SCTP_DEFAULT_SNDINFO sockopt") Signed-off-by:
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Xin Long authored
A similar fix as Patch "sctp: fix ignoring asoc_id for tcp-style sockets on SCTP_DEFAULT_SEND_PARAM sockopt" on SCTP_DELAYED_SACK sockopt. Fixes: 9c5829e1 ("sctp: use SCTP_FUTURE_ASSOC and add SCTP_CURRENT_ASSOC for SCTP_DELAYED_SACK sockopt") Signed-off-by:
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Marcelo Ricardo Leitner authored
Currently if the user pass an invalid asoc_id to SCTP_DEFAULT_SEND_PARAM on a TCP-style socket, it will silently ignore the new parameters. That's because after not finding an asoc, it is checking asoc_id against the known values of CURRENT/FUTURE/ALL values and that fails to match. IOW, if the user supplies an invalid asoc id or not, it should either match the current asoc or the socket itself so that it will inherit these later. Fixes it by forcing asoc_id to SCTP_FUTURE_ASSOC in case it is a TCP-style socket without an asoc, so that the values get set on the socket. Fixes: 707e45b3 ("sctp: use SCTP_FUTURE_ASSOC and add SCTP_CURRENT_ASSOC for SCTP_DEFAULT_SEND_PARAM sockopt") Signed-off-by:
Marcelo Ricardo Leitner <marcelo.leitner@gmail.com> Signed-off-by:
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Xin Long authored
Now sctp_copy_descendant() copies pd_lobby from old sctp scok to new sctp sock. If sctp_sock_migrate() returns error, it will panic when releasing new sock and trying to purge pd_lobby due to the incorrect pointers in pd_lobby. [ 120.485116] kasan: CONFIG_KASAN_INLINE enabled [ 120.486270] kasan: GPF could be caused by NULL-ptr deref or user [ 120.509901] Call Trace: [ 120.510443] sctp_ulpevent_free+0x1e8/0x490 [sctp] [ 120.511438] sctp_queue_purge_ulpevents+0x97/0xe0 [sctp] [ 120.512535] sctp_close+0x13a/0x700 [sctp] [ 120.517483] inet_release+0xdc/0x1c0 [ 120.518215] __sock_release+0x1d2/0x2a0 [ 120.519025] sctp_do_peeloff+0x30f/0x3c0 [sctp] We fix it by not copying sctp_sock pd_lobby in sctp_copy_descendan(), and skb_queue_head_init() can also be removed in sctp_sock_migrate(). Reported-by: syzbot+85e0b422ff140b03672a@syzkaller.appspotmail.com Fixes: 89664c62 ("sctp: sctp_sock_migrate() returns error if sctp_bind_addr_dup() fails") Signed-off-by:
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Xin Long authored
sctp_hdr(skb) only works when skb->transport_header is set properly. But in Netfilter, skb->transport_header for ipv6 is not guaranteed to be right value for sctphdr. It would cause to fail to check the checksum for sctp packets. So fix it by using offset, which is always right in all places. v1->v2: - Fix the changelog. Fixes: e6d8b64b ("net: sctp: fix and consolidate SCTP checksumming code") Reported-by:
Li Shuang <shuali@redhat.com> Signed-off-by:
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Yoshiki Komachi authored
I am using "protocol ip" filters in TC to manipulate TC flower classifiers, which are only available with "protocol ip". However, I faced an issue that packets sent via raw sockets with ETH_P_ALL did not match the ip filters even if they did satisfy the condition (e.g., DHCP offer from dhcpd). I have determined that the behavior was caused by an unexpected value stored in skb->protocol, namely, ETH_P_ALL instead of ETH_P_IP, when packets were sent via raw sockets with ETH_P_ALL set. IMHO, storing ETH_P_ALL in skb->protocol is not appropriate for packets sent via raw sockets because ETH_P_ALL is not a real ether type used on wire, but a virtual one. This patch fixes the tx protocol selection in cases of transmission via raw sockets created with ETH_P_ALL so that it asks the driver to extract protocol from the Ethernet header. Fixes: 75c65772 ("net/packet: Ask driver for protocol if not provided by user") Signed-off-by:
Yoshiki Komachi <komachi.yoshiki@lab.ntt.co.jp> Acked-by:
Willem de Bruijn <willemb@google.com> Signed-off-by:
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Maxime Chevallier authored
When using fanouts with AF_PACKET, the demux functions such as fanout_demux_cpu will return an index in the fanout socket array, which corresponds to the selected socket. The ordering of this array depends on the order the sockets were added to a given fanout group, so for FANOUT_CPU this means sockets are bound to cpus in the order they are configured, which is OK. However, when stopping then restarting the interface these sockets are bound to, the sockets are reassigned to the fanout group in the reverse order, due to the fact that they were inserted at the head of the interface's AF_PACKET socket list. This means that traffic that was directed to the first socket in the fanout group is now directed to the last one after an interface restart. In the case of FANOUT_CPU, traffic from CPU0 will be directed to the socket that used to receive traffic from the last CPU after an interface restart. This commit introduces a helper to add a socket at the tail of a list, then uses it to register AF_PACKET sockets. Note that this changes the order in which sockets are listed in /proc and with sock_diag. Fixes: dc99f600 ("packet: Add fanout support") Signed-off-by:
Maxime Chevallier <maxime.chevallier@bootlin.com> Acked-by:
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Zhiqiang Liu authored
Commit ad6c9986 ("vxlan: Fix GRO cells race condition between receive and link delete") fixed a race condition for the typical case a vxlan device is dismantled from the current netns. But if a netns is dismantled, vxlan_destroy_tunnels() is called to schedule a unregister_netdevice_queue() of all the vxlan tunnels that are related to this netns. In vxlan_destroy_tunnels(), gro_cells_destroy() is called and finished before unregister_netdevice_queue(). This means that the gro_cells_destroy() call is done too soon, for the same reasons explained in above commit. So we need to fully respect the RCU rules, and thus must remove the gro_cells_destroy() call or risk use after-free. Fixes: 58ce31cc ("vxlan: GRO support at tunnel layer") Signed-off-by:
Suanming.Mou <mousuanming@huawei.com> Suggested-by:
Eric Dumazet <eric.dumazet@gmail.com> Reviewed-by:
Stefano Brivio <sbrivio@redhat.com> Reviewed-by:
Zhiqiang Liu <liuzhiqiang26@huawei.com> Signed-off-by:
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- 18 Mar, 2019 2 commits
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Dmitry Bogdanov authored
TCP/UDP checksum validity was propagated to skb only if IP checksum is valid. But for IPv6 there is no validity as there is no checksum in IPv6. This patch propagates TCP/UDP checksum validity regardless of IP checksum. Fixes: 018423e9 ("net: ethernet: aquantia: Add ring support code") Signed-off-by:
Igor Russkikh <igor.russkikh@aquantia.com> Signed-off-by:
Nikita Danilov <nikita.danilov@aquantia.com> Signed-off-by:
Dmitry Bogdanov <dmitry.bogdanov@aquantia.com> Signed-off-by:
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Finn Thain authored
The bug that Stan reported is as follows. After a restart, a 16-bit NIC may be incorrectly identified as a 32-bit NIC and stop working. mac8390 slot.E: Memory length resource not found, probing mac8390 slot.E: Farallon EtherMac II-C (type farallon) mac8390 slot.E: MAC 00:00:c5:30:c2:99, IRQ 61, 32 KB shared memory at 0xfeed0000, 32-bit access. The bug never arises after a cold start and only intermittently after a warm start. (I didn't investigate why the bug is intermittent.) It turns out that memcpy_toio() is deprecated and memcmp_withio() also has issues. Replacing these calls with mmio accessors fixes the problem. Reported-and-tested-by:
Stan Johnson <userm57@yahoo.com> Fixes: 2964db0f ("m68k: Mac DP8390 update") Signed-off-by:
Finn Thain <fthain@telegraphics.com.au> Signed-off-by:
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