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* inet: frags: rename last_in to flagsNikolay Aleksandrov2014-08-026-40/+40
| | | | | | | | The last_in field has been used to store various flags different from first/last frag in so give it a more descriptive name: flags. Signed-off-by: Nikolay Aleksandrov <nikolay@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* inet: frags: use INC_STATS_BH in the ipv6 reassembly codeNikolay Aleksandrov2014-08-021-3/+4
| | | | | | | | | Softirqs are already disabled so no need to do it again, thus let's be consistent and use the IP6_INC_STATS_BH variant. Signed-off-by: Nikolay Aleksandrov <nikolay@redhat.com> Acked-by: Hannes Frederic Sowa <hannes@stressinduktion.org> Signed-off-by: David S. Miller <davem@davemloft.net>
* dm9000: NULL dereferences on error in probe()Dan Carpenter2014-08-021-2/+4
| | | | | | | | The dm9000_release_board() function is called with NULL ->data_req and ->addr_req pointers if dm9000_probe() fails. Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* ipv4: remove nested rcu_read_lock/unlockDuan Jiong2014-08-021-2/+0
| | | | | | | | | | | | | | | | | | | ip_local_deliver_finish() already have a rcu_read_lock/unlock, so the rcu_read_lock/unlock is unnecessary. See the stack below: ip_local_deliver_finish | | ->icmp_rcv | | ->icmp_socket_deliver Suggested-by: Hannes Frederic Sowa <hannes@stressinduktion.org> Signed-off-by: Duan Jiong <duanj.fnst@cn.fujitsu.com> Acked-by: Hannes Frederic Sowa <hannes@stressinduktion.org> Signed-off-by: David S. Miller <davem@davemloft.net>
* Merge branch 'filter-next'David S. Miller2014-08-0222-238/+243
|\ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Alexei Starovoitov says: ==================== net: filter: split sk_filter into socket and bpf, cleanup names The main goal of the series is to split 'struct sk_filter' into socket and bpf parts and cleanup names in the following way: - everything that deals with sockets keeps 'sk_*' prefix - everything that is pure BPF is changed to 'bpf_*' prefix split 'struct sk_filter' into struct sk_filter { atomic_t refcnt; struct rcu_head rcu; struct bpf_prog *prog; }; and struct bpf_prog { u32 jited:1, len:31; struct sock_fprog_kern *orig_prog; unsigned int (*bpf_func)(const struct sk_buff *skb, const struct bpf_insn *filter); union { struct sock_filter insns[0]; struct bpf_insn insnsi[0]; struct work_struct work; }; }; so that 'struct bpf_prog' can be used independent of sockets and cleans up 'unattached' bpf use cases: isdn, ppp, team, seccomp, ptp, xt_bpf, cls_bpf, test_bpf which don't need refcnt/rcu fields. It's a follow up to the rcu cleanup started by Pablo in commit 34c5bd66e5 ("net: filter: don't release unattached filter through call_rcu()") Patch 1 - cleans up socket memory charging and makes it possible for functions sk(bpf)_migrate_filter(), sk(bpf)_prepare_filter() to be socket independent Patches 2-4 - trivial renames Patch 5 - sk_filter split and renames of related sk_*() functions ==================== Signed-off-by: David S. Miller <davem@davemloft.net>
| * net: filter: split 'struct sk_filter' into socket and bpf partsAlexei Starovoitov2014-08-0221-169/+183
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | clean up names related to socket filtering and bpf in the following way: - everything that deals with sockets keeps 'sk_*' prefix - everything that is pure BPF is changed to 'bpf_*' prefix split 'struct sk_filter' into struct sk_filter { atomic_t refcnt; struct rcu_head rcu; struct bpf_prog *prog; }; and struct bpf_prog { u32 jited:1, len:31; struct sock_fprog_kern *orig_prog; unsigned int (*bpf_func)(const struct sk_buff *skb, const struct bpf_insn *filter); union { struct sock_filter insns[0]; struct bpf_insn insnsi[0]; struct work_struct work; }; }; so that 'struct bpf_prog' can be used independent of sockets and cleans up 'unattached' bpf use cases split SK_RUN_FILTER macro into: SK_RUN_FILTER to be used with 'struct sk_filter *' and BPF_PROG_RUN to be used with 'struct bpf_prog *' __sk_filter_release(struct sk_filter *) gains __bpf_prog_release(struct bpf_prog *) helper function also perform related renames for the functions that work with 'struct bpf_prog *', since they're on the same lines: sk_filter_size -> bpf_prog_size sk_filter_select_runtime -> bpf_prog_select_runtime sk_filter_free -> bpf_prog_free sk_unattached_filter_create -> bpf_prog_create sk_unattached_filter_destroy -> bpf_prog_destroy sk_store_orig_filter -> bpf_prog_store_orig_filter sk_release_orig_filter -> bpf_release_orig_filter __sk_migrate_filter -> bpf_migrate_filter __sk_prepare_filter -> bpf_prepare_filter API for attaching classic BPF to a socket stays the same: sk_attach_filter(prog, struct sock *)/sk_detach_filter(struct sock *) and SK_RUN_FILTER(struct sk_filter *, ctx) to execute a program which is used by sockets, tun, af_packet API for 'unattached' BPF programs becomes: bpf_prog_create(struct bpf_prog **)/bpf_prog_destroy(struct bpf_prog *) and BPF_PROG_RUN(struct bpf_prog *, ctx) to execute a program which is used by isdn, ppp, team, seccomp, ptp, xt_bpf, cls_bpf, test_bpf Signed-off-by: Alexei Starovoitov <ast@plumgrid.com> Signed-off-by: David S. Miller <davem@davemloft.net>
| * net: filter: rename sk_convert_filter() -> bpf_convert_filter()Alexei Starovoitov2014-08-025-14/+14
| | | | | | | | | | | | | | | | to indicate that this function is converting classic BPF into eBPF and not related to sockets Signed-off-by: Alexei Starovoitov <ast@plumgrid.com> Signed-off-by: David S. Miller <davem@davemloft.net>
| * net: filter: rename sk_chk_filter() -> bpf_check_classic()Alexei Starovoitov2014-08-025-10/+10
| | | | | | | | | | | | | | trivial rename to indicate that this functions performs classic BPF checking Signed-off-by: Alexei Starovoitov <ast@plumgrid.com> Signed-off-by: David S. Miller <davem@davemloft.net>
| * net: filter: rename sk_filter_proglen -> bpf_classic_proglenAlexei Starovoitov2014-08-023-7/+6
| | | | | | | | | | | | | | trivial rename to better match semantics of macro Signed-off-by: Alexei Starovoitov <ast@plumgrid.com> Signed-off-by: David S. Miller <davem@davemloft.net>
| * net: filter: simplify socket chargingAlexei Starovoitov2014-08-023-53/+45
|/ | | | | | | | | | | | | attaching bpf program to a socket involves multiple socket memory arithmetic, since size of 'sk_filter' is changing when classic BPF is converted to eBPF. Also common path of program creation has to deal with two ways of freeing the memory. Simplify the code by delaying socket charging until program is ready and its size is known Signed-off-by: Alexei Starovoitov <ast@plumgrid.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* net: use inet6_iif instead of IP6CB()->iifDuan Jiong2014-07-314-7/+7
| | | | | Signed-off-by: Duan Jiong <duanj.fnst@cn.fujitsu.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* ISDN: pcbit: off by one bugs in pcbit_set_msn()Dan Carpenter2014-07-311-2/+2
| | | | | | | | | | | | | | | | | 1) We don't allocate enough space for the NUL terminator so we end up corrupting one character beyond the end of the buffer. 2) The "len - 1" should just be "len". The code is trying to copy a word from a buffer up to a comma or the last word in the buffer. Say you have the buffer, "foo,bar,baz", then this code truncates the last letter off each word so you get "fo", "ba", and "ba". You would hope this kind of bug would get noticed in testing... I'm not very familiar with this code and I can't test it, but I think we should copy the final character. Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* AX88179_178A: Add ethtool ops for EEE supportFreddy Xin2014-07-311-0/+264
| | | | | | | | | Add functions to support ethtool EEE manipulating, and the EEE is disabled in default setting to enhance the compatibility with certain switch. Signed-off-by: Freddy Xin <freddy@asix.com.tw> Signed-off-by: David S. Miller <davem@davemloft.net>
* netlink: Use PAGE_ALIGNED macroTobias Klauser2014-07-311-1/+1
| | | | | | | Use PAGE_ALIGNED(...) instead of IS_ALIGNED(..., PAGE_SIZE). Signed-off-by: Tobias Klauser <tklauser@distanz.ch> Signed-off-by: David S. Miller <davem@davemloft.net>
* net: fix the counter ICMP_MIB_INERRORS/ICMP6_MIB_INERRORSDuan Jiong2014-07-315-18/+17
| | | | | | | | | | | | | | When dealing with ICMPv[46] Error Message, function icmp_socket_deliver() and icmpv6_notify() do some valid checks on packet's length, but then some protocols check packet's length redaudantly. So remove those duplicated statements, and increase counter ICMP_MIB_INERRORS/ICMP6_MIB_INERRORS in function icmp_socket_deliver() and icmpv6_notify() respectively. In addition, add missed counter in udp6/udplite6 when socket is NULL. Signed-off-by: Duan Jiong <duanj.fnst@cn.fujitsu.com> Acked-by: Hannes Frederic Sowa <hannes@stressinduktion.org> Signed-off-by: David S. Miller <davem@davemloft.net>
* sctp: Fixup v4mapped behaviour to comply with Sock APIJason Gunthorpe2014-07-317-105/+112
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The SCTP socket extensions API document describes the v4mapping option as follows: 8.1.15. Set/Clear IPv4 Mapped Addresses (SCTP_I_WANT_MAPPED_V4_ADDR) This socket option is a Boolean flag which turns on or off the mapping of IPv4 addresses. If this option is turned on, then IPv4 addresses will be mapped to V6 representation. If this option is turned off, then no mapping will be done of V4 addresses and a user will receive both PF_INET6 and PF_INET type addresses on the socket. See [RFC3542] for more details on mapped V6 addresses. This description isn't really in line with what the code does though. Introduce addr_to_user (renamed addr_v4map), which should be called before any sockaddr is passed back to user space. The new function places the sockaddr into the correct format depending on the SCTP_I_WANT_MAPPED_V4_ADDR option. Audit all places that touched v4mapped and either sanely construct a v4 or v6 address then call addr_to_user, or drop the unnecessary v4mapped check entirely. Audit all places that call addr_to_user and verify they are on a sycall return path. Add a custom getname that formats the address properly. Several bugs are addressed: - SCTP_I_WANT_MAPPED_V4_ADDR=0 often returned garbage for addresses to user space - The addr_len returned from recvmsg was not correct when returning AF_INET on a v6 socket - flowlabel and scope_id were not zerod when promoting a v4 to v6 - Some syscalls like bind and connect behaved differently depending on v4mapped Tested bind, getpeername, getsockname, connect, and recvmsg for proper behaviour in v4mapped = 1 and 0 cases. Signed-off-by: Neil Horman <nhorman@tuxdriver.com> Tested-by: Jason Gunthorpe <jgunthorpe@obsidianresearch.com> Signed-off-by: Jason Gunthorpe <jgunthorpe@obsidianresearch.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* net: kernel-doc compliant documentation for net_deviceKaroly Kemeny2014-07-311-131/+250
| | | | | | | | | | | | Net_device is a vast and important structure, but it has no kernel-doc compliant documentation. This patch extracts the comments from the structure to clean it up, and let the scripts extract documentation from it. I know that the patch is big, but it's just reordering of comments into the appropriate form, and adding a few more, for the missing members. Signed-off-by: Karoly Kemeny <karoly.kemeny@gmail.com> Acked-by: Randy Dunlap <rdunlap@infradead.org> Signed-off-by: David S. Miller <davem@davemloft.net>
* Merge branch 'stmmac-next'David S. Miller2014-07-3110-93/+238
|\ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Vince Bridgers says: ==================== net: stmmac: Improve mcast/ucast filter for snps This patch series adds Synopsys specific bindings for the Synopsys EMAC filter characteristics since those are implementation dependent. The multicast and unicast filtering code was improved to handle different configuration variations based on device tree settings. I verified the operation of the multicast and unicast filters through Synopsys support as requested during the V1 review, and tested the GMAC configuration on an Altera Cyclone 5 SOC (which supports 256 multicast bins and 128 Unicast addresses). The 10/100 variant of this driver modification was not tested, although it was compile tested. I shared the email thread results of the investigation through Synopsys with the stmmac maintainer. V4: Remove patch from series that addressed a sparse issue from a down rev'd version of sparse that does not show up in the latest version of sparse. V3: Break up the patch into interface and functional change patches per review comments V2: Confirm with Synopsys methods to determine number of Multicast bins and Unicast address filter entries per first round review comments. ==================== Signed-off-by: David S. Miller <davem@davemloft.net>
| * net: stmmac: Support devicetree configs for mcast and ucast filter entriesVince Bridgers2014-07-317-21/+132
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This patch adds and modifies code to support multiple Multicast and Unicast Synopsys MAC filter configurations. The default configuration is defined to support legacy driver behavior, which is 64 Multicast bins. The Unicast filter code previously assumed all controllers support 32 or 16 Unicast addresses based on controller version number, but this has been corrected to support a default of 1 Unicast address. The filter configuration may be specified through the devicetree using a Synopsys specific device tree entry. This information was verified with Synopsys through Synopsys Support Case #8000684337 and shared with the maintainer. Signed-off-by: Vince Bridgers <vbridgers2013@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
| * ARM: socfpga: Add socfpga Ethernet filter attributes entriesVince Bridgers2014-07-311-0/+4
| | | | | | | | | | | | | | | | | | This patch adds socfpga Ethernet filter attributes for multicast and unicast filters per Synopsys Ethernet IP configuration chosen by Altera for the Cyclone 5 and Arria SOC FPGAs. Signed-off-by: Vince Bridgers <vbridgers2013@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
| * dts: Add bindings for multicast hash bins and perfect filter entriesVince Bridgers2014-07-311-0/+6
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This change adds bindings for the number of multicast hash bins and perfect filter entries supported by the Synopsys EMAC. The Synopsys EMAC core is configurable at device creation time, and can be configured for a different number of multicast hash bins and a different number of perfect filter entries. The device does not provide a way to query these parameters, therefore parameters are required. The Altera Cyclone V SOC has support for 256 multicast hash bins and 128 perfect filter entries, and is different than what's currently provided in the stmmac driver. Signed-off-by: Vince Bridgers <vbridgers2013@gmail.com> Acked-by: Rob Herring <robh@kernel.org> Signed-off-by: David S. Miller <davem@davemloft.net>
| * net: stmmac: Correct set_filter for multicast and unicast casesVince Bridgers2014-07-315-19/+14
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This patch removes the check for the number of mulitcast addresses when using hash based filtering since it's not necessary. If the number of multicast addresses in the list exceeds the number of multicast hash bins, the bins will "fold" over into one of the bins configured and enabled for the particular component instance. The default number of maximum unicast addresses was changed from 32 to 1 since this number is not dependent on the component revision. The maximum number of multicast and unicast addresses is dependent on the configuration of the Synopsys EMAC configured by the SOC architect at the time the features were selected and configured for a particular component. Sadly, Synopsys does not provide a way to query the precise number supported by a particular component, so we must fall back on a devicetree entry. This configuration could vary from vendor to vendor (such as STMicro, Altera, etc). The multicast bins are set for every possible filtering case (including no entries) - previously the bits were set only if multicast filter entries were present. Signed-off-by: Vince Bridgers <vbridgers2013@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
| * net: stmmac: Change MAC interface to support multiple filter configurationsVince Bridgers2014-07-315-62/+91
|/ | | | | | | | | | | | | The synopsys EMAC can be configured for different numbers of multicast hash bins and perfect filter entries at device creation time and there's no way to query this configuration information at runtime. As a result, a devicetree parameter is required in order for the driver to program these filters correctly for a particular device instance. This patch modifies the 10/100/1000 MAC software interface such that these configuration parameters can be set at initialization time. Signed-off-by: Vince Bridgers <vbridgers2013@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* Merge git://git.kernel.org/pub/scm/linux/kernel/git/pablo/nf-nextDavid S. Miller2014-07-3110-135/+133
|\ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Pablo Neira Ayuso says: ==================== Netfilter updates for net-next The following patchset contains netfilter updates for net-next, they are: 1) Add the reject expression for the nf_tables bridge family, this allows us to send explicit reject (TCP RST / ICMP dest unrech) to the packets matching a rule. 2) Simplify and consolidate the nf_tables set dumping logic. This uses netlink control->data to filter out depending on the request. 3) Perform garbage collection in xt_hashlimit using a workqueue instead of a timer, which is problematic when many entries are in place in the tables, from Eric Dumazet. 4) Remove leftover code from the removed ulog target support, from Paul Bolle. 5) Dump unmodified flags in the netfilter packet accounting when resetting counters, so userspace knows that a counter was in overquota situation, from Alexey Perevalov. 6) Fix wrong usage of the bitwise functions in nfnetlink_acct, also from Alexey. 7) Fix a crash when adding new set element with an empty NFTA_SET_ELEM_LIST attribute. This patchset also includes a couple of cleanups for xt_LED from Duan Jiong and for nf_conntrack_ipv4 (using coccinelle) from Himangi Saraogi. ==================== Signed-off-by: David S. Miller <davem@davemloft.net>
| * netfilter: nf_tables: check for unset NFTA_SET_ELEM_LIST_ELEMENTS attributePablo Neira Ayuso2014-07-311-0/+6
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Otherwise, the kernel oopses in nla_for_each_nested when iterating over the unset attribute NFTA_SET_ELEM_LIST_ELEMENTS in the nf_tables_{new,del}setelem() path. netlink: 65524 bytes leftover after parsing attributes in process `nft'. [...] Oops: 0000 [#1] SMP [...] CPU: 2 PID: 6287 Comm: nft Not tainted 3.16.0-rc2+ #169 RIP: 0010:[<ffffffffa0526e61>] [<ffffffffa0526e61>] nf_tables_newsetelem+0x82/0xec [nf_tables] [...] Call Trace: [<ffffffffa05178c4>] nfnetlink_rcv+0x2e7/0x3d7 [nfnetlink] [<ffffffffa0517939>] ? nfnetlink_rcv+0x35c/0x3d7 [nfnetlink] [<ffffffff8137d300>] netlink_unicast+0xf8/0x17a [<ffffffff8137d6a5>] netlink_sendmsg+0x323/0x351 [...] Fix this by returning -EINVAL if this attribute is not set, which doesn't make sense at all since those commands are there to add and to delete elements from the set. Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
| * netfilter: nfnetlink_acct: avoid using NFACCT_F_OVERQUOTA with bit helper ↵Alexey Perevalov2014-07-311-3/+5
| | | | | | | | | | | | | | | | | | | | | | | | | | functions Bit helper functions were used for manipulation with NFACCT_F_OVERQUOTA, but they are accepting pit position, but not a bit mask. As a result not a third bit for NFACCT_F_OVERQUOTA was set, but forth. Such behaviour was dangarous and could lead to unexpected overquota report result. Signed-off-by: Alexey Perevalov <a.perevalov@samsung.com> Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
| * netfilter: nfnetlink_acct: dump unmodified nfacct flagsAlexey Perevalov2014-07-301-1/+3
| | | | | | | | | | | | | | | | | | | | NFNL_MSG_ACCT_GET_CTRZERO modifies dumped flags, in this case client see unmodified (uncleared) counter value and cleared overquota state - end user doesn't know anything about overquota state, unless end user subscribed on overquota report. Signed-off-by: Alexey Perevalov <a.perevalov@samsung.com> Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
| * netfilter: kill remnants of ulog targetsPaul Bolle2014-07-253-8/+0
| | | | | | | | | | | | | | | | | | The ulog targets were recently killed. A few references to the Kconfig macros CONFIG_IP_NF_TARGET_ULOG and CONFIG_BRIDGE_EBT_ULOG were left untouched. Kill these too. Signed-off-by: Paul Bolle <pebolle@tiscali.nl> Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
| * netfilter: xt_LED: don't output error message redundantlyDuan Jiong2014-07-251-3/+1
| | | | | | | | | | | | | | | | The function led_trigger_register() will only return -EEXIST when error arises. Signed-off-by: Duan Jiong <duanj.fnst@cn.fujitsu.com> Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
| * netfilter: nf_conntrack: remove exceptional & on function nameHimangi Saraogi2014-07-251-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | In this file, function names are otherwise used as pointers without &. A simplified version of the Coccinelle semantic patch that makes this change is as follows: // <smpl> @r@ identifier f; @@ f(...) { ... } @@ identifier r.f; @@ - &f + f // </smpl> Signed-off-by: Himangi Saraogi <himangi774@gmail.com> Acked-by: Julia Lawall <julia.lawall@lip6.fr> Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
| * netfilter: xt_hashlimit: perform garbage collection from process contextEric Dumazet2014-07-241-15/+16
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | xt_hashlimit cannot be used with large hash tables, because garbage collector is run from a timer. If table is really big, its possible to hold cpu for more than 500 msec, which is unacceptable. Switch to a work queue, and use proper scheduling points to remove latencies spikes. Later, we also could switch to a smoother garbage collection done at lookup time, one bucket at a time... Signed-off-by: Eric Dumazet <edumazet@google.com> Cc: Florian Westphal <fw@strlen.de> Cc: Patrick McHardy <kaber@trash.net> Reviewed-by: Florian Westphal <fw@strlen.de> Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
| * netfilter: nf_tables: simplify set dump through netlinkPablo Neira Ayuso2014-07-221-104/+27
| | | | | | | | | | | | | | | | | | | | | | This patch uses the cb->data pointer that allows us to store the context when dumping the set list. Thus, we don't need to parse the original netlink message containing the dump request for each recvmsg() call when dumping the set list. The different function flavours depending on the dump criteria has been also merged into one single generic function. This saves us ~100 lines of code. Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
| * netfilter: bridge: add reject supportPablo Neira Ayuso2014-07-223-0/+74
| | | | | | | | | | | | | | So you can reject IPv4 and IPv6 packets from bridge tables. If the ether proto is now known, default on dropping the packet instead. Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
* | tcp: don't require root to read tcp_metricsBanerjee, Debabrata2014-07-311-1/+0
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | commit d23ff7016 (tcp: add generic netlink support for tcp_metrics) introduced netlink support for the new tcp_metrics, however it restricted getting of tcp_metrics to root user only. This is a change from how these values could have been fetched when in the old route cache. Unless there's a legitimate reason to restrict the reading of these values it would be better if normal users could fetch them. Cc: Julian Anastasov <ja@ssi.bg> Cc: linux-kernel@vger.kernel.org Signed-off-by: Debabrata Banerjee <dbanerje@akamai.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* | team: fix releasing uninitialized pointer to BPF progDaniel Borkmann2014-07-311-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Commit 34c5bd66e5ed introduced the possibility that an uninitialized pointer on the stack (orig_fp) can call into sk_unattached_filter_destroy() when its value is non NULL. Before that commit orig_fp was only destroyed in the same block where it was assigned a valid BPF prog before. Fix it up by initializing it to NULL. Fixes: 34c5bd66e5ed ("net: filter: don't release unattached filter through call_rcu()") Signed-off-by: Daniel Borkmann <dborkman@redhat.com> Cc: Pablo Neira <pablo@netfilter.org> Cc: Alexei Starovoitov <ast@plumgrid.com> Cc: Jiri Pirko <jiri@resnulli.us> Signed-off-by: David S. Miller <davem@davemloft.net>
* | Merge branch 'master' of ↵David S. Miller2014-07-303-65/+42
|\ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/klassert/ipsec-next Steffen Klassert says: ==================== pull request (net-next): ipsec-next 2014-07-30 This is the last pull request for ipsec-next before I'll be off for two weeks starting on friday. David, can you please take urgent ipsec patches directly into net/net-next during this time? 1) Error handling simplifications for vti and vti6. From Mathias Krause. 2) Remove a duplicate semicolon after a return statement. From Christoph Paasch. ==================== Signed-off-by: David S. Miller <davem@davemloft.net>
| * | xfrm4: Remove duplicate semicolonChristoph Paasch2014-06-301-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | 3328715e6c1fc (xfrm4: Add IPsec protocol multiplexer) adds a duplicate semicolon after the return-statement. Although it has no negative impact, the second semicolon should be removed. Cc: Steffen Klassert <steffen.klassert@secunet.com> Cc: Herbert Xu <herbert@gondor.apana.org.au> Signed-off-by: Christoph Paasch <christoph.paasch@uclouvain.be> Signed-off-by: Steffen Klassert <steffen.klassert@secunet.com>
| * | vti: Simplify error handling in module init and exitMathias Krause2014-06-261-33/+21
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The error handling in the module init and exit functions can be shortened to safe us some code. 1/ Remove the code duplications in the init function, jump straight to the existing cleanup code by adding some labels. Also give the error message some more value by telling the reason why loading the module has failed. Furthermore fix the "IPSec" typo -- it should be "IPsec" instead. 2/ Remove the error handling in the exit function as the only legitimate reason xfrm4_protocol_deregister() might fail is inet_del_protocol() returning -1. That, in turn, means some other protocol handler had been registered for this very protocol in the meantime. But that essentially means we haven't been handling that protocol any more, anyway. What it definitely means not is that we "can't deregister tunnel". Therefore just get rid of that bogus warning. It's plain wrong. Signed-off-by: Mathias Krause <minipli@googlemail.com> Signed-off-by: Steffen Klassert <steffen.klassert@secunet.com>
| * | vti6: Simplify error handling in module init and exitMathias Krause2014-06-261-31/+20
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The error handling in the module init and exit functions can be shortened to safe us some code. 1/ Remove the code duplications in the init function, jump straight to the existing cleanup code by adding some labels. Also give the error message some more value by telling the reason why loading the module has failed. 2/ Remove the error handling in the exit function as the only legitimate reason xfrm6_protocol_deregister() might fail is inet6_del_protocol() returning -1. That, in turn, means some other protocol handler had been registered for this very protocol in the meantime. But that essentially means we haven't been handling that protocol any more, anyway. What it definitely means not is that we "can't deregister protocol". Therefore just get rid of that bogus warning. It's plain wrong. Signed-off-by: Mathias Krause <minipli@googlemail.com> Signed-off-by: Steffen Klassert <steffen.klassert@secunet.com>
* | | net: bcmgenet: correct spellingBrian Norris2014-07-301-11/+11
| | | | | | | | | | | | | | | | | | | | | Signed-off-by: Brian Norris <computersforpeace@gmail.com> Cc: Florian Fainelli <f.fainelli@gmail.com> Cc: David S. Miller <davem@davemloft.net> Signed-off-by: David S. Miller <davem@davemloft.net>
* | | Merge branch 'libphy_mmd'David S. Miller2014-07-304-24/+95
|\ \ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Vince Bridgers says: ==================== net: libphy: Add phy specific functions to access mmd regs This set of patches addresses a problem found with the Micrel ksz9021 phy and libphy, where the ksz9021 phy does not support mmd extended register access per the IEEE specification as assumed by libphy. The first patch adds a framework for phy specific support to specify their own function to access extended phy registers, return a failure code if not supported, or to default to libphy's IEEE defined method for accessing the mmd extended phy registers. This issue was found by using the Synopsys EMAC and a Micrel ksz9021 phy on the Altera Cyclone 5 SOC development kit. This patch was tested on the same system in both positive and negative test cases. V5: Revert name of mmd register access functions, check for phy specific driver override functions in mmd register access functions per Florian's comments to minimize source code changes V4: Correct error when formatting V3 patch - erroneous text cut from code V3: Correct formatting of function arguments, remove return statement from NULL functions, and add patch for PHY driver documentation per review comments. V2: Split the original patch submission into seperate patches for the libphy framework required for the modification and for the Micrel Phy. ==================== Signed-off-by: David S. Miller <davem@davemloft.net>
| * | | Documentation: networking: phy.txt: Update text for indirect MMD accessVince Bridgers2014-07-301-1/+17
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Update the PHY library documentation to describe how a specific PHY driver can use the PAL MMD register access routines or override those routines with it's own in the event the PHY does not support the IEEE standard for reading and writing MMD phy registers. Signed-off-by: Vince Bridgers <vbridgers2013@gmail.com> Reviewed-by: Florian Fainelli <f.fainelli@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
| * | | net: libphy: Add stubs to hook IEEE MMD Register reads and writesVince Bridgers2014-07-301-0/+22
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The Micrel ksz9021 PHY does not support standard IEEE standard MMD extended register access, therefore requires stubs to fail the read register method and do nothing for the write register method when libphy attempts to read and/or configure Energy Efficient Ethernet features in PHYS that do support those features. This problem was observed on an Altera Cyclone V SOC development kit that uses the Synopsys EMAC and the Micrel ksz9021 PHY. This patch was tested on the same board, and Energy Efficient Ethernet is now disabled as expected since the Micrel PHY does not support that feature. Signed-off-by: Vince Bridgers <vbridgers2013@gmail.com> Reviewed-by: Florian Fainelli <f.fainelli@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
| * | | net: libphy: Add phy specific function to access mmd phy registersVince Bridgers2014-07-302-23/+56
|/ / / | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | libphy was originally written assuming all phy devices support clause 45 access extensions to the mmd registers through the indirection registers located within the first 16 phy registers. This assumption is not true in all cases, and one specific example is the Micrel ksz9021 10/100/1000 Mbps phy. Using the stmmac driver, accessing the mmd registers to query and configure energy efficient Ethernet (EEE) features yielded unexpected behavior. This patch adds mmd access functions to the phy driver that can be overriden by the phy specific driver if the phy does not support this mechanism or uses it's own non-standard access mechanism. By default, the IEEE Compatible clause 45 access mechanism described in clause 22 is used. With this patch, EEE query/configure functions as expected using the stmmac and the Micrel ksz9021 phy. Signed-off-by: Vince Bridgers <vbridgers2013@gmail.com> Reviewed-by: Florian Fainelli <f.fainelli@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* | | net/fsl: Add format length modifier to avoid negative valuesShruti Kanetkar2014-07-301-1/+1
| | | | | | | | | | | | | | | Signed-off-by: Shruti Kanetkar <Shruti@Freescale.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* | | net/fsl: fix misspelled wordMadalin Bucur2014-07-301-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | Fix one misspelled word reported by codespell. Signed-off-by: Madalin Bucur <madalin.bucur@freescale.com> Signed-off-by: Shruti Kanetkar <Shruti@freescale.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* | | net: filter: don't release unattached filter through call_rcu()Pablo Neira2014-07-302-4/+13
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | sk_unattached_filter_destroy() does not always need to release the filter object via rcu. Since this filter is never attached to the socket, the caller should be responsible for releasing the filter in a safe way, which may not necessarily imply rcu. This is a short summary of clients of this function: 1) xt_bpf.c and cls_bpf.c use the bpf matchers from rules, these rules are removed from the packet path before the filter is released. Thus, the framework makes sure the filter is safely removed. 2) In the ppp driver, the ppp_lock ensures serialization between the xmit and filter attachment/detachment path. This doesn't use rcu so deferred release via rcu makes no sense. 3) In the isdn/ppp driver, it is called from isdn_ppp_release() the isdn_ppp_ioctl(). This driver uses mutex and spinlocks, no rcu. Thus, deferred rcu makes no sense to me either, the deferred releases may be just masking the effects of wrong locking strategy, which should be fixed in the driver itself. 4) In the team driver, this is the only place where the rcu synchronization with unattached filter is used. Therefore, this patch introduces synchronize_rcu() which is called from the genetlink path to make sure the filter doesn't go away while packets are still walking over it. I think we can revisit this once struct bpf_prog (that only wraps specific bpf code bits) is in place, then add some specific struct rcu_head in the scope of the team driver if Jiri thinks this is needed. Deferred rcu release for unattached filters was originally introduced in 302d663 ("filter: Allow to create sk-unattached filters"). Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org> Signed-off-by: David S. Miller <davem@davemloft.net>
* | | netfilter: xt_bpf: add mising opaque struct sk_filter definitionPablo Neira2014-07-301-0/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This structure is not exposed to userspace, so fix this by defining struct sk_filter; so we skip the casting in kernelspace. This is safe since userspace has no way to lurk with that internal pointer. Fixes: e6f30c7 ("netfilter: x_tables: add xt_bpf match") Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org> Acked-by: Willem de Bruijn <willemb@google.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* | | CAPI: use correct structure type name in sizeofJulia Lawall2014-07-301-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Correct typo in the name of the type given to sizeof. Because it is the size of a pointer that is wanted, the typo has no impact on compilation or execution. This problem was found using Coccinelle (http://coccinelle.lip6.fr/). The semantic patch used can be found in message 0 of this patch series. Signed-off-by: Julia Lawall <Julia.Lawall@lip6.fr> Signed-off-by: David S. Miller <davem@davemloft.net>
* | | Merge branch 'amd-xgbe-next'David S. Miller2014-07-3014-127/+1631
|\ \ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Tom Lendacky says: ==================== amd-xgbe: AMD XGBE driver update 2014-07-25 This patch series is dependent on the following patch that was applied to the net tree and needs to be applied to the net-next tree: 332cfc823d18 - amd-xgbe: Fix error return code in xgbe_probe() The following series of patches includes fixes and new support in the driver. - Device bindings documentation update - Hardware timestamp support - 2.5GbE support changes - Fifo sizes based on active queues/rings - Phylib driver updates for: - Rate change completion check - KR training initiation - Auto-negotiation results - Traffic class support, including DCB support This patch series is based on net-next. Changes in V2: - Remove DBGPR(...., __func__) calls ==================== Signed-off-by: David S. Miller <davem@davemloft.net>
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