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2008-04-16[GRE]: Allow for IPPROTO_GRE protocol in namespaces.Pavel Emelyanov1-0/+1
This one was also disabled by default for sanity. Signed-off-by: Pavel Emelyanov <xemul@openvz.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-04-16[GRE]: Allow to create IPGRE tunnels in net namespaces.Pavel Emelyanov1-0/+3
I.e. set the proper net and mark as NETNS_LOCAL. Signed-off-by: Pavel Emelyanov <xemul@openvz.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-04-16[GRE]: Use proper net in routing calls.Pavel Emelyanov1-6/+6
As for the IPIP tunnel, there are some ip_route_output_key() calls in there that require a proper net so give one to them. And a proper net for the __get_dev_by_index hanging around. Signed-off-by: Pavel Emelyanov <xemul@openvz.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-04-16[GRE]: Make tunnels hashes per-net.Pavel Emelyanov1-34/+31
Very similar to what was done for the IPIP code. Signed-off-by: Pavel Emelyanov <xemul@openvz.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-04-16[GRE]: Make the fallback tunnel device per-net.Pavel Emelyanov1-31/+32
Everything is prepared for this change now. Create on in init callback, use it over the code and destroy on net exit. Signed-off-by: Pavel Emelyanov <xemul@openvz.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-04-16[GRE]: Use proper net in hash-lookup functions.Pavel Emelyanov1-2/+2
This is the part#2 of the patch #2 - get the proper net for these functions. This change in a separate patch in order not to get lost in a large previous patch. Signed-off-by: Pavel Emelyanov <xemul@openvz.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-04-16[GRE]: Add net/gre_net argument to some functions.Pavel Emelyanov1-19/+32
The fallback device and hashes are to become per-net, but many code doesn't have anything to get the struct net pointer from. So pass the proper net there with an extra argument. Signed-off-by: Pavel Emelyanov <xemul@openvz.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-04-16[GRE]: Introduce empty ipgre_net structure and net init/exit ops.Pavel Emelyanov1-0/+49
Signed-off-by: Pavel Emelyanov <xemul@openvz.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-04-16[IPIP]: Allow for IPPROTO_IPIP protocol in namespaces.Pavel Emelyanov1-0/+1
This one was disabled by default for sanity. Signed-off-by: Pavel Emelyanov <xemul@openvz.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-04-16[IPIP]: Allow to create IPIP tunnels in net namespaces.Pavel Emelyanov1-0/+3
Set the proper net before calling register_netdev and disable the tunnel device netns changing. Signed-off-by: Pavel Emelyanov <xemul@openvz.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-04-16[IPIP]: Use proper net in (mostly) routing calls.Pavel Emelyanov1-5/+5
There are some ip_route_output_key() calls in there that require a proper net so give one to them. Besides - give a proper net to a single __get_dev_by_index call in ipip_tunnel_bind_dev(). Signed-off-by: Pavel Emelyanov <xemul@openvz.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-04-16[IPIP]: Make tunnels hashes per net.Pavel Emelyanov1-32/+36
Either net or ipip_net already exists in all the required places, so just use one. Besides, tune net_init and net_exit calls to respectively initialize the hashes and destroy devices. Signed-off-by: Pavel Emelyanov <xemul@openvz.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-04-16[IPIP]: Use proper net in hash-lookup functions.Pavel Emelyanov1-2/+2
This is the part#2 of the previous patch - get the proper net for these functions. I make it in a separate patch, so that this change does not get lost in a large previous patch. Signed-off-by: Pavel Emelyanov <xemul@openvz.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-04-16[IPIP]: Add net/ipip_net argument to some functions.Pavel Emelyanov1-19/+25
The hashes of tunnels will be per-net too, so prepare all the functions that uses them for this change by adding an argument. Use init_net temporarily in places, where the net does not exist explicitly yet. Signed-off-by: Pavel Emelyanov <xemul@openvz.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-04-16[IPIP]: Make the fallback tunnel device per-net.Pavel Emelyanov1-32/+35
Create on in ipip_init_net(), use it all over the code (the proper place to get the net from already exists) and destroy in ipip_net_exit(). Signed-off-by: Pavel Emelyanov <xemul@openvz.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-04-16[IPIP]: Introduce empty ipip_net structure and net init/exit ops.Pavel Emelyanov1-0/+50
Signed-off-by: Pavel Emelyanov <xemul@openvz.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-04-16[VLAN]: Handle vlan devices net namespace changing.Pavel Emelyanov1-5/+8
When van device is moved to another namespace proc files, related to this device, should also change one. Use the netdev REGISTER and UNREGISTER event handlers for this. Signed-off-by: Pavel Emelyanov <xemul@openvz.org> Acked-by: Patrick McHardy <kaber@trash.net> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-04-16[VLAN]: Allow vlan devices registration in net namespaces.Pavel Emelyanov3-8/+4
This one is similar to what I've done for TUN - set the proper net after device allocation and clean VLANs on net exit (use the rtnl_kill_links helper finally). Plus, drop explicit init_net usage and net != &init_net checks. Signed-off-by: Pavel Emelyanov <xemul@openvz.org> Acked-by: Patrick McHardy <kaber@trash.net> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-04-16[VLAN]: Make the vlan_name_type per-net.Pavel Emelyanov3-9/+16
This includes moving one on the struct vlan_net and s/vlan_name_type/vn->name_type/ over the code. Signed-off-by: Pavel Emelyanov <xemul@openvz.org> Acked-by: Patrick McHardy <kaber@trash.net> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-04-16[VLAN]: Make the /proc/net/vlan/conf file show per-net info.Pavel Emelyanov1-5/+8
It is created in a proper net, so make is show info, related to this particular net. Signed-off-by: Pavel Emelyanov <xemul@openvz.org> Acked-by: Patrick McHardy <kaber@trash.net> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-04-16[VLAN]: Create proc entries in the proper net.Pavel Emelyanov2-27/+23
The proc_vlan_dir and proc_vlan_conf migrate on the struct vlan_net and their creation uses the struct net. The devices' entries use the corresponding device's net. Signed-off-by: Pavel Emelyanov <xemul@openvz.org> Acked-by: Patrick McHardy <kaber@trash.net> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-04-16[VLAN]: Add a net argument to proc init and cleanup calls.Pavel Emelyanov3-15/+22
All proc files will be created in each net, so prepare them for this change now, not to mess it with real creation patch. The net != &init_net checks in them are for git-bisect sanity, but I will drop them soon. Signed-off-by: Pavel Emelyanov <xemul@openvz.org> Acked-by: Patrick McHardy <kaber@trash.net> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-04-16[VLAN]: Introduce the vlan_net structure and init/exit net ops.Pavel Emelyanov2-0/+51
Unlike TUN, it is empty from the very beginning, and will be eventually populated later. Signed-off-by: Pavel Emelyanov <xemul@openvz.org> Acked-by: Patrick McHardy <kaber@trash.net> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-04-16[VLAN]: Tag vlan_group_device with net device, not ifindex.Pavel Emelyanov1-11/+11
Currently vlan group is searched using one key - the ifindex. We'll have to lookup the vlan_group by two keys - ifindex and net. Turning the vlan_group lookup key to struct net_device pointer will make this process easier. Besides, this will eliminate one more place in the networking, that assumes that indexes are unique in the kernel. Signed-off-by: Pavel Emelyanov <xemul@openvz.org> Acked-by: Patrick McHardy <kaber@trash.net> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-04-16[RTNL]: Introduce the rtnl_kill_links helper.Pavel Emelyanov1-8/+21
This one is responsible for calling ->dellink on each net device found in net to help with vlan net_exit hook in the nearest future. Signed-off-by: Pavel Emelyanov <xemul@openvz.org> Acked-by: Patrick McHardy <kaber@trash.net> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-04-16[RTNL]: Relax for_each_netdev_safe in __rtnl_link_unregister.Pavel Emelyanov1-2/+2
Each potential list_del (happening from inside a ->dellink call) is followed by goto restart, so there's no need in _safe iteration. Signed-off-by: Pavel Emelyanov <xemul@openvz.org> Acked-by: Patrick McHardy <kaber@trash.net> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-04-15[TCP]: Remove superflushious skb == write_queue_tail() checkIlpo Järvinen1-1/+1
Needed can only be more strict than what was checked by the earlier common case check for non-tail skbs, thus cwnd_len <= needed will never match in that case anyway. Signed-off-by: Ilpo Järvinen <ilpo.jarvinen@helsinki.fi> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-04-15[TCP]: Add return value indication to tcp_prune_ofo_queue().Vitaliy Gusev1-3/+9
Returns non-zero if tp->out_of_order_queue was seen non-empty. This allows tcp_try_rmem_schedule() to return early. Signed-off-by: Vitaliy Gusev <vgusev@openvz.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-04-15[ETHTOOL]: Add support for large eepromsMandeep Singh Baines1-28/+36
Currently, it is not possible to read/write to an eeprom larger than 128k in size because the buffer used for temporarily storing the eeprom contents is allocated using kmalloc. kmalloc can only allocate a maximum of 128k depending on architecture. Modified ethtool_get/set_eeprom to only allocate a page of memory and then copy the eeprom a page at a time. Updated original patch as per suggestions from Joe Perches. Signed-off-by: Mandeep Singh Baines <msb@google.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-04-15CAN: use hrtimers in can-bcm protocolOliver Hartkopp1-121/+130
Make use of hrtimers to support high resolution capabilities, when provided by the system clocksource. The conversion to hrtimers additionally discovered and solved an unlikely race condition that has been reproduced under (unrealistic) massive receive load, which can only be produced on vcan software devices. [ Fix printf format warnings on 64-bit -DaveM ] Signed-off-by: Oliver Hartkopp <oliver@hartkopp.net> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-04-15[TIPC]: Enhance validation of format on incoming messagesAllan Stephens1-12/+77
This patch ensures that TIPC properly handles incoming messages that have incorrect or unexpected formats. Most significantly, it now ensures that each sl_buff has at least as much data as the message header indicates it should, and that the entire message header is stored contiguously; this prevents TIPC from accidentally accessing memory that is not part of the sk_buff. Signed-off-by: Allan Stephens <allan.stephens@windriver.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-04-15[TIPC]: Force linearization of non-linear sk_buffsAllan Stephens2-0/+18
This patch allows TIPC to process incoming messages that are stored in a fragmented sk_buff, by forcing the linearization of any such messages it receives. Note: This is an interim solution to allow TIPC to operate with Ethernet devices that generate non-linear buffers (such as the gianfar driver), until such time as the rest of TIPC is enhanced to handle sk_buffs with multiple data areas. Signed-off-by: Allan Stephens <allan.stephens@windriver.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-04-15[TIPC]: Use fast buffer cloning to improve performanceAllan Stephens1-1/+1
This patch causes TIPC to allocate fast clonable sk_buffs, rather than standard ones. This speeds up the cloning operation done by the link code each time a message is sent off-node. Signed-off-by: Allan Stephens <allan.stephens@windriver.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-04-15[TIPC]: Remove redundant NULL check when discarding buffersAllan Stephens1-2/+1
This patch eliminates a null pointer check when discarding a TIPC message buffer, since kfree_skb() already handles this situation. Acknowledgements to Florian Westphal (fw@strlen.de> for suggesting this enhancement. Signed-off-by: Allan Stephens <allan.stephens@windriver.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-04-15mac80211: remove message on receiving unexpected unencrypted framesJohannes Berg1-5/+2
Some people are getting this message a lot, and we have traced it to broken access points that much too often send completely empty frames (all bytes zeroed, which they shouldn't do at all.) Since we cannot do anything about such frames in any case except the special case where we're debugging an AP, just remove the message. Signed-off-by: Johannes Berg <johannes@sipsolutions.net> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2008-04-15rfkill: Fix device type check when toggling statesCarlos Corbacho1-1/+1
rfkill_switch_all() is supposed to only switch all the interfaces of a given type, but does not actually do this; instead, it just switches everything currently in the same state. Add the necessary type check in. (This fixes a bug I've been seeing while developing an rfkill laptop driver, with both bluetooth and wireless simultaneously changing state after only pressing either KEY_WLAN or KEY_BLUETOOTH). Signed-off-by: Carlos Corbacho <carlos@strangeworlds.co.uk> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2008-04-15[NETNS]: The generic per-net pointers.Pavel Emelyanov1-0/+62
Add the elastic array of void * pointer to the struct net. The access rules are simple: 1. register the ops with register_pernet_gen_device to get the id of your private pointer 2. call net_assign_generic() to put the private data on the struct net (most preferably this should be done in the ->init callback of the ops registered) 3. do not store any private reference on the net_generic array; 4. do not change this pointer while the net is alive; 5. use the net_generic() to get the pointer. When adding a new pointer, I copy the old array, replace it with a new one and schedule the old for kfree after an RCU grace period. Since the net_generic explores the net->gen array inside rcu read section and once set the net->gen->ptr[x] pointer never changes, this grants us a safe access to generic pointers. Quoting Paul: "... RCU is protecting -only- the net_generic structure that net_generic() is traversing, and the [pointer] returned by net_generic() is protected by a reference counter in the upper-level struct net." Signed-off-by: Pavel Emelyanov <xemul@openvz.org> Acked-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-04-15[NETNS]: The net-subsys IDs generator.Pavel Emelyanov1-0/+38
To make some per-net generic pointers, we need some way to address them, i.e. - IDs. This is simple IDA-based IDs generator for pernet subsystems. Addressing questions about potential checkpoint/restart problems: these IDs are "lite-offsets" within the net structure and are by no means supposed to be exported to the userspace. Since it will be used in the nearest future by devices only (tun, vlan, tunnels, bridge, etc), I make it resemble the functionality of register_pernet_device(). The new ids is stored in the *id pointer _before_ calling the init callback to make this id available in this callback. Signed-off-by: Pavel Emelyanov <xemul@openvz.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-04-15[TCP]: Fix never pruned tcp out-of-order queue.Vitaliy Gusev1-26/+46
tcp_prune_queue() doesn't prune an out-of-order queue at all. Therefore sk_rmem_schedule() can fail but the out-of-order queue isn't pruned . This can lead to tcp deadlock state if the next two conditions are held: 1. There are a sequence hole between last received in order segment and segments enqueued to the out-of-order queue. 2. Size of all segments in the out-of-order queue is more than tcp_mem[2]. Signed-off-by: Vitaliy Gusev <vgusev@openvz.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-04-15[IRDA]: Remove irlan_eth_send_gratuitous_arp()Adrian Bunk2-43/+0
Even kernel 2.2.26 (sic) already contains the #undef CONFIG_IRLAN_SEND_GRATUITOUS_ARP with the comment "but for some reason the machine crashes if you use DHCP". Either someone finally looks into this or it's simply time to remove this dead code. Reported-by: Robert P. J. Day <rpjday@crashcourse.ca> Signed-off-by: Adrian Bunk <bunk@kernel.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-04-15[TIPC]: Overhaul of socket locking logicAllan Stephens2-431/+602
This patch modifies TIPC's socket code to follow the same approach used by other protocols. This change eliminates the need for a mutex in the TIPC-specific portion of the socket protocol data structure -- in its place, the standard Linux socket backlog queue and associated locking routines are utilized. These changes fix a long-standing receive queue bug on SMP systems, and also enable individual read and write threads to utilize a socket without unnecessarily interfering with each other. Signed-off-by: Allan Stephens <allan.stephens@windriver.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-04-15[TIPC]: Cosmetic changes to TIPC connect() codeAllan Stephens1-71/+72
This patch fixes TIPC's connect routine to conform to Linux kernel style norms of indentation, line length, etc. Signed-off-by: Allan Stephens <allan.stephens@windriver.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-04-15[TIPC]: Add error check to detect non-blocking form of connect()Allan Stephens1-0/+5
This patch causes TIPC to return an error indication if the non- blocking form of connect() is requested (which TIPC does not yet support). Signed-off-by: Allan Stephens <allan.stephens@windriver.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-04-15[TIPC]: Correct "off by 1" error in socket queue limit enforcementAllan Stephens1-12/+10
This patch fixes a bug that allowed TIPC to queue 1 more message than allowed by the socket receive queue threshold limits. The patch also improves the threshold code's logic and naming to help prevent this sort of error from recurring in the future. Signed-off-by: Allan Stephens <allan.stephens@windriver.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-04-15[TIPC]: Ignore message padding when receiving stream dataAllan Stephens1-1/+1
This patch ensures that padding bytes appearing at the end of an incoming TIPC message are not returned as valid stream data. Signed-off-by: Allan Stephens <allan.stephens@windriver.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-04-15[TIPC]: Allow stream receive to read from multiple TIPC messagesAllan Stephens1-1/+3
This patch allows a stream socket to receive data from multiple TIPC messages in its receive queue, without requiring the use of the MSG_WAITALL flag. Acknowledgements to Florian Westphal <fw-tipc@strlen.de> for identifying this issue and suggesting how to correct it. Signed-off-by: Allan Stephens <allan.stephens@windriver.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-04-15[TIPC]: Skip connection flow control in connectionless socketsAllan Stephens1-1/+2
This patch optimizes the receive path for SOCK_DGRAM and SOCK_RDM messages by skipping over code that handles connection-based flow control. Signed-off-by: Allan Stephens <allan.stephens@windriver.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-04-14[NET_SCHED] sch_api: fix qdisc_tree_decrease_qlen() loopJarek Poplawski1-0/+3
TC_H_MAJ(parentid) for root classes is the same as for ingress, and if ingress qdisc is created qdisc_lookup() returns its pointer (without ingress NULL is returned). After this all qdisc_lookups give the same, and we get endless loop. (I don't know how this could hide for so long - it should trigger with every leaf class deleted if it's qdisc isn't empty.) After this fix qdisc_lookup() is omitted both for ingress and root parents, but looking for root is only wasting a little time here... Many thanks to Enrico Demarin for finding a test for catching this bug, which probably bothered quite a lot of admins. Reported-by: Enrico Demarin <enrico@superclick.com>, Signed-off-by: Jarek Poplawski <jarkao2@gmail.com> Acked-by: Patrick McHardy <kaber@trash.net> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-04-14[XFRM]: Compilation warnings in xfrm_user.c.Denis V. Lunev1-4/+4
When CONFIG_SECURITY_NETWORK_XFRM is undefined the following warnings appears: net/xfrm/xfrm_user.c: In function 'xfrm_add_pol_expire': net/xfrm/xfrm_user.c:1576: warning: 'ctx' may be used uninitialized in this function net/xfrm/xfrm_user.c: In function 'xfrm_get_policy': net/xfrm/xfrm_user.c:1340: warning: 'ctx' may be used uninitialized in this function (security_xfrm_policy_alloc is noop for the case). It seems that they are result of the commit 03e1ad7b5d871d4189b1da3125c2f12d1b5f7d0b ("LSM: Make the Labeled IPsec hooks more stack friendly") Signed-off-by: Denis V. Lunev <den@openvz.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-04-14Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-2.6Linus Torvalds21-33/+106
* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-2.6: (31 commits) [BRIDGE]: Fix crash in __ip_route_output_key with bridge netfilter [NETFILTER]: ipt_CLUSTERIP: fix race between clusterip_config_find_get and _entry_put [IPV6] ADDRCONF: Don't generate temporary address for ip6-ip6 interface. [IPV6] ADDRCONF: Ensure disabling multicast RS even if privacy extensions are disabled. [IPV6]: Use appropriate sock tclass setting for routing lookup. [IPV6]: IPv6 extension header structures need to be packed. [IPV6]: Fix ipv6 address fetching in raw6_icmp_error(). [NET]: Return more appropriate error from eth_validate_addr(). [ISDN]: Do not validate ISDN net device address prior to interface-up [NET]: Fix kernel-doc for skb_segment [SOCK] sk_stamp: should be initialized to ktime_set(-1L, 0) net: check for underlength tap writes net: make struct tun_struct private to tun.c [SCTP]: IPv4 vs IPv6 addresses mess in sctp_inet[6]addr_event. [SCTP]: Fix compiler warning about const qualifiers [SCTP]: Fix protocol violation when receiving an error lenght INIT-ACK [SCTP]: Add check for hmac_algo parameter in sctp_verify_param() [NET_SCHED] cls_u32: refcounting fix for u32_delete() [DCCP]: Fix skb->cb conflicts with IP [AX25]: Potential ax25_uid_assoc-s leaks on module unload. ...
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