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* decnet: Don't set RTCF_DIRECTSRC.David S. Miller2012-07-231-2/+0
| | | | | | It's an ipv4 defined route flag, and only ipv4 uses it. Signed-off-by: David S. Miller <davem@davemloft.net>
* net: Document dst->obsolete better.David S. Miller2012-07-201-2/+2
| | | | | | | | | Add a big comment explaining how the field works, and use defines instead of magic constants for the values assigned to it. Suggested by Joe Perches. Signed-off-by: David S. Miller <davem@davemloft.net>
* net: Pass optional SKB and SK arguments to dst_ops->{update_pmtu,redirect}()David S. Miller2012-07-171-4/+8
| | | | | | | | | | | | | | | | This will be used so that we can compose a full flow key. Even though we have a route in this context, we need more. In the future the routes will be without destination address, source address, etc. keying. One ipv4 route will cover entire subnets, etc. In this environment we have to have a way to possess persistent storage for redirects and PMTU information. This persistent storage will exist in the FIB tables, and that's why we'll need to be able to rebuild a full lookup flow key here. Using that flow key will do a fib_lookup() and create/update the persistent entry. Signed-off-by: David S. Miller <davem@davemloft.net>
* net: Add dummy dst_ops->redirect method where needed.David S. Miller2012-07-121-0/+6
| | | | Signed-off-by: David S. Miller <davem@davemloft.net>
* rtnetlink: Remove ts/tsage args to rtnl_put_cacheinfo().David S. Miller2012-07-111-1/+1
| | | | | | Nobody provides non-zero values any longer. Signed-off-by: David S. Miller <davem@davemloft.net>
* net: Don't report route RTT metric value in cache dumps.David S. Miller2012-07-111-6/+5
| | | | | | | We don't maintain it dynamically any longer, so reporting it would be extremely misleading. Report zero instead. Signed-off-by: David S. Miller <davem@davemloft.net>
* decnet: Use neighbours privately in dn_route struct.David S. Miller2012-07-052-8/+30
| | | | | | This allows an easy conversion away from dst_get_neighbour*(). Signed-off-by: David S. Miller <davem@davemloft.net>
* net: Add optional SKB arg to dst_ops->neigh_lookup().David S. Miller2012-07-051-2/+6
| | | | | | | Causes the handler to use the daddr in the ipv4/ipv6 header when the route gateway is unspecified (local subnet). Signed-off-by: David S. Miller <davem@davemloft.net>
* netlink: add netlink_kernel_cfg parameter to netlink_kernel_createPablo Neira Ayuso2012-06-301-3/+5
| | | | | | | | | | | | | | | | | | | | | | | | | This patch adds the following structure: struct netlink_kernel_cfg { unsigned int groups; void (*input)(struct sk_buff *skb); struct mutex *cb_mutex; }; That can be passed to netlink_kernel_create to set optional configurations for netlink kernel sockets. I've populated this structure by looking for NULL and zero parameters at the existing code. The remaining parameters that always need to be set are still left in the original interface. That includes optional parameters for the netlink socket creation. This allows easy extensibility of this interface in the future. This patch also adapts all callers to use this new interface. Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org> Signed-off-by: David S. Miller <davem@davemloft.net>
* netlink: Get rid of obsolete rtnetlink macrosThomas Graf2012-06-281-0/+8
| | | | | | | | | Removes all RTA_GET*() and RTA_PUT*() variations, as well as the the unused rtattr_strcmp(). Get rid of rtm_get_table() by moving it to its only user decnet. Signed-off-by: Thomas Graf <tgraf@suug.ch> Signed-off-by: David S. Miller <davem@davemloft.net>
* decnet: Do not use RTA_PUT() macrosThomas Graf2012-06-282-51/+79
| | | | | | | | Also, no need to trim on nlmsg_put() failure, nothing has been added yet. We also want to use nlmsg_end(), nlmsg_new() and nlmsg_free(). Signed-off-by: Thomas Graf <tgraf@suug.ch> Signed-off-by: David S. Miller <davem@davemloft.net>
* decnet: dn_table: Move away from NLMSG_NEW().David S. Miller2012-06-271-5/+6
| | | | | | And use nlmsg_data() while we're here too. Signed-off-by: David S. Miller <davem@davemloft.net>
* decnet: dn_route: Move away from NLMSG_NEW().David S. Miller2012-06-271-5/+7
| | | | | | And use nlmsg_data() while we're here too. Signed-off-by: David S. Miller <davem@davemloft.net>
* decnet: dn_rtmsg: Move away from NLMSG_PUT().David S. Miller2012-06-271-10/+10
| | | | | | | | And use nlmsg_data() while we're here too. Also, remove pointless kernel log message. Signed-off-by: David S. Miller <davem@davemloft.net>
* Merge branch 'master' of git://1984.lsi.us.es/net-nextDavid S. Miller2012-06-111-1/+1
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| * netfilter: decnet: switch hook PFs to nfprotoAlban Crequy2012-06-071-1/+1
| | | | | | | | | | | | | | | | | | | | This patch is a cleanup. Use NFPROTO_* for consistency with other netfilter code. Signed-off-by: Alban Crequy <alban.crequy@collabora.co.uk> Reviewed-by: Javier Martinez Canillas <javier.martinez@collabora.co.uk> Reviewed-by: Vincent Sanders <vincent.sanders@collabora.co.uk> Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
* | net: Remove casts to same typeJoe Perches2012-06-041-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Adding casts of objects to the same type is unnecessary and confusing for a human reader. For example, this cast: int y; int *p = (int *)&y; I used the coccinelle script below to find and remove these unnecessary casts. I manually removed the conversions this script produces of casts with __force and __user. @@ type T; T *p; @@ - (T *)p + p Signed-off-by: Joe Perches <joe@perches.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* | net: use consume_skb() in place of kfree_skb()Eric Dumazet2012-06-041-3/+3
|/ | | | | | | Remove some dropwatch/drop_monitor false positives. Signed-off-by: Eric Dumazet <edumazet@google.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* net: Convert net_ratelimit uses to net_<level>_ratelimitedJoe Perches2012-05-157-38/+27
| | | | | | | | | | Standardize the net core ratelimited logging functions. Coalesce formats, align arguments. Change a printk then vprintk sequence to use printf extension %pV. Signed-off-by: Joe Perches <joe@perches.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* net decnet: Convert to use register_net_sysctlEric W. Biederman2012-04-212-22/+5
| | | | | | | | | Using an ascii path to register_net_sysctl as opposed to the slightly awkward ctl_path allows for much simpler code. Signed-off-by: Eric W. Biederman <ebiederm@xmission.com> Acked-by: Pavel Emelyanov <xemul@parallels.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* net: Move all of the network sysctls without a namespace into init_net.Eric W. Biederman2012-04-212-4/+4
| | | | | | | | | | | | | | | | This makes it clearer which sysctls are relative to your current network namespace. This makes it a little less error prone by not exposing sysctls for the initial network namespace in other namespaces. This is the same way we handle all of our other network interfaces to userspace and I can't honestly remember why we didn't do this for sysctls right from the start. Signed-off-by: Eric W. Biederman <ebiederm@xmission.com> Acked-by: Pavel Emelyanov <xemul@parallels.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* net: cleanup unsigned to unsigned intEric Dumazet2012-04-156-19/+20
| | | | | | | Use of "unsigned int" is preferred to bare "unsigned" in net tree. Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/netDavid S. Miller2012-04-104-4/+0
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| * Remove all #inclusions of asm/system.hDavid Howells2012-03-284-4/+0
| | | | | | | | | | | | | | | | | | Remove all #inclusions of asm/system.h preparatory to splitting and killing it. Performed with the following command: perl -p -i -e 's!^#\s*include\s*<asm/system[.]h>.*\n!!' `grep -Irl '^#\s*include\s*<asm/system[.]h>' *` Signed-off-by: David Howells <dhowells@redhat.com>
* | decnet: Stop using NLA_PUT*().David S. Miller2012-04-022-12/+12
|/ | | | | | | These macros contain a hidden goto, and are thus extremely error prone and make code hard to audit. Signed-off-by: David S. Miller <davem@davemloft.net>
* decnet: remove unused variable from dn_output()Jesper Juhl2012-02-051-2/+1
| | | | | | | | The variable 'neigh' is assigned to, but otherwise completely unused. So let's remove it. Signed-off-by: Jesper Juhl <jj@chaosbits.net> Signed-off-by: David S. Miller <davem@davemloft.net>
* decnet: Add missing neigh->ha locking to dn_neigh_output_packet()David S. Miller2012-02-011-9/+15
| | | | | | Basically, mirror the logic in neigh_connected_output(). Signed-off-by: David S. Miller <davem@davemloft.net>
* Merge branch 'for-linus' of git://selinuxproject.org/~jmorris/linux-securityLinus Torvalds2012-01-151-1/+1
|\ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | * 'for-linus' of git://selinuxproject.org/~jmorris/linux-security: capabilities: remove __cap_full_set definition security: remove the security_netlink_recv hook as it is equivalent to capable() ptrace: do not audit capability check when outputing /proc/pid/stat capabilities: remove task_ns_* functions capabitlies: ns_capable can use the cap helpers rather than lsm call capabilities: style only - move capable below ns_capable capabilites: introduce new has_ns_capabilities_noaudit capabilities: call has_ns_capability from has_capability capabilities: remove all _real_ interfaces capabilities: introduce security_capable_noaudit capabilities: reverse arguments to security_capable capabilities: remove the task from capable LSM hook entirely selinux: sparse fix: fix several warnings in the security server cod selinux: sparse fix: fix warnings in netlink code selinux: sparse fix: eliminate warnings for selinuxfs selinux: sparse fix: declare selinux_disable() in security.h selinux: sparse fix: move selinux_complete_init selinux: sparse fix: make selinux_secmark_refcount static SELinux: Fix RCU deref check warning in sel_netport_insert() Manually fix up a semantic mis-merge wrt security_netlink_recv(): - the interface was removed in commit fd7784615248 ("security: remove the security_netlink_recv hook as it is equivalent to capable()") - a new user of it appeared in commit a38f7907b926 ("crypto: Add userspace configuration API") causing no automatic merge conflict, but Eric Paris pointed out the issue.
| * security: remove the security_netlink_recv hook as it is equivalent to capable()Eric Paris2012-01-061-1/+1
| | | | | | | | | | | | | | | | | | | | Once upon a time netlink was not sync and we had to get the effective capabilities from the skb that was being received. Today we instead get the capabilities from the current task. This has rendered the entire purpose of the hook moot as it is now functionally equivalent to the capable() call. Signed-off-by: Eric Paris <eparis@redhat.com>
* | net: reintroduce missing rcu_assign_pointer() callsEric Dumazet2012-01-121-2/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | | commit a9b3cd7f32 (rcu: convert uses of rcu_assign_pointer(x, NULL) to RCU_INIT_POINTER) did a lot of incorrect changes, since it did a complete conversion of rcu_assign_pointer(x, y) to RCU_INIT_POINTER(x, y). We miss needed barriers, even on x86, when y is not NULL. Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com> CC: Stephen Hemminger <shemminger@vyatta.com> CC: Paul E. McKenney <paulmck@linux.vnet.ibm.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* | ipv6: Use universal hash for NDISC.David S. Miller2011-12-281-2/+2
| | | | | | | | | | | | | | | | | | In order to perform a proper universal hash on a vector of integers, we have to use different universal hashes on each vector element. Which means we need 4 different hash randoms for ipv6. Signed-off-by: David S. Miller <davem@davemloft.net>
* | net: Rename dst_get_neighbour{, _raw} to dst_get_neighbour_noref{, _raw}.David Miller2011-12-052-5/+5
| | | | | | | | | | | | | | | | To reflect the fact that a refrence is not obtained to the resulting neighbour entry. Signed-off-by: David S. Miller <davem@davemloft.net> Acked-by: Roland Dreier <roland@purestorage.com>
* | Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/netDavid S. Miller2011-12-021-12/+5
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| * | decnet: proper socket refcountingEric Dumazet2011-11-261-12/+5
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Better use sk_reset_timer() / sk_stop_timer() helpers to make sure we dont access already freed/reused memory later. Reported-by: Sasha Levin <levinsasha928@gmail.com> Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com> Tested-by: Sasha Levin <levinsasha928@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* | | Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/netDavid S. Miller2011-11-261-4/+6
|\| | | | | | | | | | | | | | Conflicts: net/ipv4/inet_diag.c
| * | net: Move mtu handling down to the protocol depended handlersSteffen Klassert2011-11-261-1/+3
| | | | | | | | | | | | | | | | | | | | | | | | | | | We move all mtu handling from dst_mtu() down to the protocol layer. So each protocol can implement the mtu handling in a different manner. Signed-off-by: Steffen Klassert <steffen.klassert@secunet.com> Signed-off-by: David S. Miller <davem@davemloft.net>
| * | net: Rename the dst_opt default_mtu method to mtuSteffen Klassert2011-11-261-3/+3
| | | | | | | | | | | | | | | | | | | | | | | | | | | We plan to invoke the dst_opt->default_mtu() method unconditioally from dst_mtu(). So rename the method to dst_opt->mtu() to match the name with the new meaning. Signed-off-by: Steffen Klassert <steffen.klassert@secunet.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* | | neigh: new unresolved queue limitsEric Dumazet2011-11-141-1/+1
|/ / | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Le mercredi 09 novembre 2011 à 16:21 -0500, David Miller a écrit : > From: David Miller <davem@davemloft.net> > Date: Wed, 09 Nov 2011 16:16:44 -0500 (EST) > > > From: Eric Dumazet <eric.dumazet@gmail.com> > > Date: Wed, 09 Nov 2011 12:14:09 +0100 > > > >> unres_qlen is the number of frames we are able to queue per unresolved > >> neighbour. Its default value (3) was never changed and is responsible > >> for strange drops, especially if IP fragments are used, or multiple > >> sessions start in parallel. Even a single tcp flow can hit this limit. > > ... > > > > Ok, I've applied this, let's see what happens :-) > > Early answer, build fails. > > Please test build this patch with DECNET enabled and resubmit. The > decnet neigh layer still refers to the removed ->queue_len member. > > Thanks. Ouch, this was fixed on one machine yesterday, but not the other one I used this morning, sorry. [PATCH V5 net-next] neigh: new unresolved queue limits unres_qlen is the number of frames we are able to queue per unresolved neighbour. Its default value (3) was never changed and is responsible for strange drops, especially if IP fragments are used, or multiple sessions start in parallel. Even a single tcp flow can hit this limit. $ arp -d 192.168.20.108 ; ping -c 2 -s 8000 192.168.20.108 PING 192.168.20.108 (192.168.20.108) 8000(8028) bytes of data. 8008 bytes from 192.168.20.108: icmp_seq=2 ttl=64 time=0.322 ms Signed-off-by: David S. Miller <davem@davemloft.net>
* | net: Add export.h for EXPORT_SYMBOL/THIS_MODULE to non-modulesPaul Gortmaker2011-11-012-0/+2
| | | | | | | | | | | | | | | | | | 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>
* | rcu: convert uses of rcu_assign_pointer(x, NULL) to RCU_INIT_POINTERStephen Hemminger2011-08-021-3/+3
|/ | | | | | | | | | | | | | | | | | | | When assigning a NULL value to an RCU protected pointer, no barrier is needed. The rcu_assign_pointer, used to handle that but will soon change to not handle the special case. Convert all rcu_assign_pointer of NULL value. //smpl @@ expression P; @@ - rcu_assign_pointer(P, NULL) + RCU_INIT_POINTER(P, NULL) // </smpl> Signed-off-by: Stephen Hemminger <shemminger@vyatta.com> Acked-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* atomic: use <linux/atomic.h>Arun Sharma2011-07-274-4/+4
| | | | | | | | | | | | | | This allows us to move duplicated code in <asm/atomic.h> (atomic_inc_not_zero() for now) to <linux/atomic.h> Signed-off-by: Arun Sharma <asharma@fb.com> Reviewed-by: Eric Dumazet <eric.dumazet@gmail.com> Cc: Ingo Molnar <mingo@elte.hu> Cc: David Miller <davem@davemloft.net> Cc: Eric Dumazet <eric.dumazet@gmail.com> Acked-by: Mike Frysinger <vapier@gentoo.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* net: Add ->neigh_lookup() operation to dst_opsDavid S. Miller2011-07-181-0/+7
| | | | | | | | In the future dst entries will be neigh-less. In that environment we need to have an easy transition point for current users of dst->neighbour outside of the packet output fast path. Signed-off-by: David S. Miller <davem@davemloft.net>
* net: Abstract dst->neighbour accesses behind helpers.David S. Miller2011-07-182-9/+11
| | | | | | dst_{get,set}_neighbour() Signed-off-by: David S. Miller <davem@davemloft.net>
* neigh: Pass neighbour entry to output ops.David S. Miller2011-07-182-15/+16
| | | | | | | | | | This will get us closer to being able to do "neigh stuff" completely independent of the underlying dst_entry for protocols (ipv4/ipv6) that wish to do so. We will also be able to make dst entries neigh-less. Signed-off-by: David S. Miller <davem@davemloft.net>
* neigh: Kill ndisc_ops->queue_xmitDavid S. Miller2011-07-171-4/+1
| | | | | | It is always dev_queue_xmit(). Signed-off-by: David S. Miller <davem@davemloft.net>
* neigh: Kill neigh_ops->hh_outputDavid S. Miller2011-07-171-3/+0
| | | | | | It's always dev_queue_xmit(). Signed-off-by: David S. Miller <davem@davemloft.net>
* decnet: Reduce switch/case indentJoe Perches2011-07-029-597/+603
| | | | | | | | | | Make the case labels the same indent as the switch. git diff -w shows differences for line wrapping. (fit multiple lines to 80 columns, join where possible) Signed-off-by: Joe Perches <joe@perches.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* net: Remove casts of void *Joe Perches2011-06-171-1/+1
| | | | | | | | | | | | | | | | | | | | | | | Unnecessary casts of void * clutter the code. These are the remainder casts after several specific patches to remove netdev_priv and dev_priv. Done via coccinelle script: $ cat cast_void_pointer.cocci @@ type T; T *pt; void *pv; @@ - pt = (T *)pv; + pt = pv; Signed-off-by: Joe Perches <joe@perches.com> Acked-by: Paul Moore <paul.moore@hp.com> Signed-off-by: David S. Miller <davem@conan.davemloft.net>
* rtnetlink: Compute and store minimum ifinfo dump sizeGreg Rose2011-06-103-7/+8
| | | | | | | | | | | | | | | The message size allocated for rtnl ifinfo dumps was limited to a single page. This is not enough for additional interface info available with devices that support SR-IOV and caused a bug in which VF info would not be displayed if more than approximately 40 VFs were created per interface. Implement a new function pointer for the rtnl_register service that will calculate the amount of data required for the ifinfo dump and allocate enough data to satisfy the request. Signed-off-by: Greg Rose <gregory.v.rose@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
* Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next-2.6Linus Torvalds2011-05-203-17/+12
|\ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | * git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next-2.6: (1446 commits) macvlan: fix panic if lowerdev in a bond tg3: Add braces around 5906 workaround. tg3: Fix NETIF_F_LOOPBACK error macvlan: remove one synchronize_rcu() call networking: NET_CLS_ROUTE4 depends on INET irda: Fix error propagation in ircomm_lmp_connect_response() irda: Kill set but unused variable 'bytes' in irlan_check_command_param() irda: Kill set but unused variable 'clen' in ircomm_connect_indication() rxrpc: Fix set but unused variable 'usage' in rxrpc_get_transport() be2net: Kill set but unused variable 'req' in lancer_fw_download() irda: Kill set but unused vars 'saddr' and 'daddr' in irlan_provider_connect_indication() atl1c: atl1c_resume() is only used when CONFIG_PM_SLEEP is defined. rxrpc: Fix set but unused variable 'usage' in rxrpc_get_peer(). rxrpc: Kill set but unused variable 'local' in rxrpc_UDP_error_handler() rxrpc: Kill set but unused variable 'sp' in rxrpc_process_connection() rxrpc: Kill set but unused variable 'sp' in rxrpc_rotate_tx_window() pkt_sched: Kill set but unused variable 'protocol' in tc_classify() isdn: capi: Use pr_debug() instead of ifdefs. tg3: Update version to 3.119 tg3: Apply rx_discards fix to 5719/5720 ... Fix up trivial conflicts in arch/x86/Kconfig and net/mac80211/agg-tx.c as per Davem.
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