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2011-05-04ipv4: Kill rt->rt_{src, dst} usage in IP GRE tunnels.David S. Miller
First, make callers pass on-stack flowi4 to ip_route_output_gre() so they can get at the fully resolved flow key. Next, use that in ipgre_tunnel_xmit() to avoid the need to use rt->rt_{dst,src}. Signed-off-by: David S. Miller <davem@davemloft.net>
2011-05-03ipv4: Make caller provide on-stack flow key to ip_route_output_ports().David S. Miller
Signed-off-by: David S. Miller <davem@davemloft.net>
2011-05-03ipv4: Renamt struct rtable's rt_tos to rt_key_tos.David S. Miller
To more accurately reflect that it is purely a routing cache lookup key and is used in no other context. Signed-off-by: David S. Miller <davem@davemloft.net>
2011-05-02net: dont hold rtnl mutex during netlink dump callbacksEric Dumazet
Four years ago, Patrick made a change to hold rtnl mutex during netlink dump callbacks. I believe it was a wrong move. This slows down concurrent dumps, making good old /proc/net/ files faster than rtnetlink in some situations. This occurred to me because one "ip link show dev ..." was _very_ slow on a workload adding/removing network devices in background. All dump callbacks are able to use RCU locking now, so this patch does roughly a revert of commits : 1c2d670f366 : [RTNETLINK]: Hold rtnl_mutex during netlink dump callbacks 6313c1e0992 : [RTNETLINK]: Remove unnecessary locking in dump callbacks This let writers fight for rtnl mutex and readers going full speed. It also takes care of phonet : phonet_route_get() is now called from rcu read section. I renamed it to phonet_route_get_rcu() Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com> Cc: Patrick McHardy <kaber@trash.net> Cc: Remi Denis-Courmont <remi.denis-courmont@nokia.com> Acked-by: Stephen Hemminger <shemminger@vyatta.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2011-04-28ipv4: Remove now superfluous code in ip_route_connect().David S. Miller
Now that output route lookups update the flow with source address et al. selections, the fl4->{saddr,daddr} assignments here are no longer necessary. Signed-off-by: David S. Miller <davem@davemloft.net>
2011-04-28ipv4: Use caller's on-stack flowi as-is in output route lookups.David S. Miller
Signed-off-by: David S. Miller <davem@davemloft.net>
2011-04-28net: Make dst_alloc() take more explicit initializations.David S. Miller
Now the dst->dev, dev->obsolete, and dst->flags values can be specified as well. Signed-off-by: David S. Miller <davem@davemloft.net>
2011-04-28inet: add RCU protection to inet->optEric Dumazet
We lack proper synchronization to manipulate inet->opt ip_options Problem is ip_make_skb() calls ip_setup_cork() and ip_setup_cork() possibly makes a copy of ipc->opt (struct ip_options), without any protection against another thread manipulating inet->opt. Another thread can change inet->opt pointer and free old one under us. Use RCU to protect inet->opt (changed to inet->inet_opt). Instead of handling atomic refcounts, just copy ip_options when necessary, to avoid cache line dirtying. We cant insert an rcu_head in struct ip_options since its included in skb->cb[], so this patch is large because I had to introduce a new ip_options_rcu structure. Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com> Cc: Herbert Xu <herbert@gondor.apana.org.au> Signed-off-by: David S. Miller <davem@davemloft.net>
2011-04-27ipv4: Kill RTO_CONN.David S. Miller
It's not used by anything in the kernel, and defined in net/route.h so never exported to userspace. Therefore we can safely remove it. Signed-off-by: David S. Miller <davem@davemloft.net>
2011-04-27ipv4: Sanitize and simplify ip_route_{connect,newports}()David S. Miller
These functions are used together as a unit for route resolution during connect(). They address the chicken-and-egg problem that exists when ports need to be allocated during connect() processing, yet such port allocations require addressing information from the routing code. It's currently more heavy handed than it needs to be, and in particular we allocate and initialize a flow object twice. Let the callers provide the on-stack flow object. That way we only need to initialize it once in the ip_route_connect() call. Later, if ip_route_newports() needs to do anything, it re-uses that flow object as-is except for the ports which it updates before the route re-lookup. Also, describe why this set of facilities are needed and how it works in a big comment. Signed-off-by: David S. Miller <davem@davemloft.net> Reviewed-by: Eric Dumazet <eric.dumazet@gmail.com>
2011-04-27sctp: clean up route lookup callsVlad Yasevich
Change the call to take the transport parameter and set the cached 'dst' appropriately inside the get_dst() function calls. This will allow us in the future to clean up source address storage as well. Signed-off-by: Vlad Yasevich <vladislav.yasevich@hp.com> Signed-off-by: Wei Yongjun <yjwei@cn.fujitsu.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2011-04-27sctp: remove useless arguments from get_saddr() callVlad Yasevich
There is no point in passing a destination address to a get_saddr() call. Signed-off-by: Vlad Yasevich <vladislav.yasevich@hp.com> Signed-off-by: Wei Yongjun <yjwei@cn.fujitsu.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2011-04-27sctp: cache the ipv6 source after route lookupVlad Yasevich
The ipv6 routing lookup does give us a source address, but instead of filling it into the dst, it's stored in the flowi. We can use that instead of going through the entire source address selection again. Also the useless ->dst_saddr member of sctp_pf is removed. And sctp_v6_dst_saddr() is removed, instead by introduce sctp_v6_to_addr(), which can be reused to cleanup some dup code. Signed-off-by: Vlad Yasevich <vladislav.yasevich@hp.com> Signed-off-by: Wei Yongjun <yjwei@cn.fujitsu.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2011-04-25Merge branch 'for-davem' of ↵David S. Miller
git://git.kernel.org/pub/scm/linux/kernel/git/linville/wireless-next-2.6
2011-04-25Merge branch 'master' of ↵John W. Linville
git://git.kernel.org/pub/scm/linux/kernel/git/linville/wireless-next-2.6 into for-davem Conflicts: drivers/net/wireless/iwlwifi/iwl-core.c drivers/net/wireless/rt2x00/rt2x00queue.c drivers/net/wireless/rt2x00/rt2x00queue.h
2011-04-24net: Remove __KERNEL__ cpp checks from include/netDavid S. Miller
These header files are never installed to user consumption, so any __KERNEL__ cpp checks are superfluous. Projects should also not copy these files into their userland utility sources and try to use them there. If they insist on doing so, the onus is on them to sanitize the headers as needed. Signed-off-by: David S. Miller <davem@davemloft.net>
2011-04-22inet: constify ip headers and in6_addrEric Dumazet
Add const qualifiers to structs iphdr, ipv6hdr and in6_addr pointers where possible, to make code intention more obvious. Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2011-04-21sctp: implement event notification SCTP_SENDER_DRY_EVENTWei Yongjun
This patch implement event notification SCTP_SENDER_DRY_EVENT. SCTP Socket API Extensions: 6.1.9. SCTP_SENDER_DRY_EVENT When the SCTP stack has no more user data to send or retransmit, this notification is given to the user. Also, at the time when a user app subscribes to this event, if there is no data to be sent or retransmit, the stack will immediately send up this notification. Signed-off-by: Wei Yongjun <yjwei@cn.fujitsu.com> Signed-off-by: Vlad Yasevich <vladislav.yasevich@hp.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2011-04-21sctp: change auth event type name to SCTP_AUTHENTICATION_EVENTWei Yongjun
This patch change the auth event type name to SCTP_AUTHENTICATION_EVENT, which is based on API extension compliance. Signed-off-by: Wei Yongjun <yjwei@cn.fujitsu.com> Signed-off-by: Vlad Yasevich <vladislav.yasevich@hp.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2011-04-21sctp: implement socket option SCTP_GET_ASSOC_ID_LISTWei Yongjun
This patch Implement socket option SCTP_GET_ASSOC_ID_LIST. SCTP Socket API Extension: 8.2.6. Get the Current Identifiers of Associations (SCTP_GET_ASSOC_ID_LIST) This option gets the current list of SCTP association identifiers of the SCTP associations handled by a one-to-many style socket. Signed-off-by: Wei Yongjun <yjwei@cn.fujitsu.com> Signed-off-by: Vlad Yasevich <vladislav.yasevich@hp.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2011-04-20sctp: make heartbeat information in sctp_make_heartbeat()Wei Yongjun
Make heartbeat information in sctp_make_heartbeat() instead of make it in sctp_sf_heartbeat() directly for common using. Signed-off-by: Wei Yongjun <yjwei@cn.fujitsu.com> Signed-off-by: Vlad Yasevich <vladislav.yasevich@hp.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2011-04-20sctp: fix to check the source address of COOKIE-ECHO chunkWei Yongjun
SCTP does not check whether the source address of COOKIE-ECHO chunk is the original address of INIT chunk or part of the any address parameters saved in COOKIE in CLOSED state. So even if the COOKIE-ECHO chunk is from any address but with correct COOKIE, the COOKIE-ECHO chunk still be accepted. If the COOKIE is not from a valid address, the assoc should not be established. Signed-off-by: Wei Yongjun <yjwei@cn.fujitsu.com> Signed-off-by: Vlad Yasevich <vladislav.yasevich@hp.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2011-04-20sctp: remove completely unsed EMPTY stateVlad Yasevich
SCTP does not SCTP_STATE_EMPTY and we can never be in that state. Remove useless code. Signed-off-by: Vlad Yasevich <vladislav.yasevich@hp.com> Signed-off-by: Wei Yongjun <yjwei@cn.fujitsu.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2011-04-20sctp: remove redundant check when walking through a list of TLV parametersShan Wei
When pos.v <= (void *)chunk + end - ntohs(pos.p->length) and ntohs(pos.p->length) >= sizeof(sctp_paramhdr_t) these two expressions are all true, pos.v <= (void *)chunk + end - sizeof(sctp_paramhdr_t) *must* be true. This patch removes this kind of redundant check. It's same to _sctp_walk_errors macro. Signed-off-by: Shan Wei <shanwei@cn.fujitsu.com> Signed-off-by: Vlad Yasevich <vladislav.yasevich@hp.com> Signed-off-by: Wei Yongjun <yjwei@cn.fujitsu.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2011-04-19sctp: kill abandoned SCTP_CMD_TRANSMIT commandShan Wei
Remove SCTP_CMD_TRANSMIT command as it never be used. Signed-off-by: Shan Wei <shanwei@cn.fujitsu.com> Signed-off-by: Vlad Yasevich <vladislav.yasevich@hp.com> Signed-off-by: Wei Yongjun <yjwei@cn.fujitsu.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2011-04-19sctp: delete unused macro definition of sctp_chunk_is_controlShan Wei
The macro never be used. And if needed, can use !sctp_chunk_is_data instead of. Signed-off-by: Shan Wei <shanwei@cn.fujitsu.com> Signed-off-by: Vlad Yasevich <vladislav.yasevich@hp.com> Signed-off-by: Wei Yongjun <yjwei@cn.fujitsu.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2011-04-19mac80211: add a function for setting the TIM bit for a specific stationFelix Fietkau
This allows a driver to buffer frames for a PS station and tell mac80211 to wake it up even though mac80211 does not have any buffered frames for it. This is necessary for properly handling aggregation related buffering, in ath9k, because the driver needs to keep its frames in order to keep track of the Block-ACK window. Signed-off-by: Felix Fietkau <nbd@openwrt.org> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2011-04-19Merge branch 'master' of ↵John W. Linville
git://git.kernel.org/pub/scm/linux/kernel/git/padovan/bluetooth-next-2.6
2011-04-15ipv6: RTA_PREFSRC support for ipv6 route source address selectionDaniel Walter
[ipv6] Add support for RTA_PREFSRC This patch allows a user to select the preferred source address for a specific IPv6-Route. It can be set via a netlink message setting RTA_PREFSRC to a valid IPv6 address which must be up on the device the route will be bound to. Signed-off-by: Daniel Walter <dwalter@barracuda.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2011-04-14ipv4: Call fib_select_default() only when actually necessary.David S. Miller
fib_select_default() is a complete NOP, and completely pointless to invoke, when we have no more than 1 default route installed. And this is far and away the common case. So remember how many prefixlen==0 routes we have in the routing table, and elide the call when we have no more than one of those. This cuts output route creation time by 157 cycles on Niagara2+. In order to add the new int to fib_table, we have to correct the type of ->tb_data[] to unsigned long, otherwise the private area will be unaligned on 64-bit systems. Signed-off-by: David S. Miller <davem@davemloft.net> Reviewed-by: Eric Dumazet <eric.dumazet@gmail.com>
2011-04-13Bluetooth: Move tx queue to struct l2cap_chanGustavo F. Padovan
tx_q is the queue used by ERTM mode. Signed-off-by: Gustavo F. Padovan <padovan@profusion.mobi>
2011-04-13Bluetooth: Move SREJ list to struct l2cap_chanGustavo F. Padovan
As part of moving all the Channel related operation to struct l2cap_chan. Signed-off-by: Gustavo F. Padovan <padovan@profusion.mobi>
2011-04-12{mac|nl}80211: Add station connected timeMohammed Shafi Shajakhan
Add station connected time in debugfs. This will be helpful to get a measure of stability of the connection and for debugging stress issues Cc: Senthilkumar Balasubramanian <Senthilkumar.Balasubramanian@Atheros.com> Signed-off-by: Mohammed Shafi Shajakhan <mshajakhan@atheros.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2011-04-12nl80211: New notification to discover mesh peer candidates.Javier Cardona
Notify userspace when a beacon/presp is received from a suitable mesh peer candidate for whom no sta information exists. Userspace can then decide to create a sta info for the candidate. If userspace is not ready to authenticate the peer right away, it can create the sta info with the authenticated flag unset and set it later. Signed-off-by: Javier Cardona <javier@cozybit.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2011-04-12cfg80211/nl80211: Add userspace authentication flag to mesh setupJavier Cardona
During mesh setup, use NL80211_MESH_SETUP_USERSPACE_AUTH flag to create a secure mesh and route management frames to userspace. Also, NL80211_CMD_GET_WIPHY now returns a flag NL80211_SUPPORT_MESH_AUTH if the wiphy's mesh implementation supports routing of mesh auth frames to userspace. This is useful for forward compatibility between old kernels and new userspace tools. Signed-off-by: Javier Cardona <javier@cozybit.com> Signed-off-by: Thomas Pedersen <thomas@cozybit.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2011-04-12nl80211: rename NL80211_MESH_SETUP_VENDOR_PATH_SEL_IEJavier Cardona
To NL80211_MESH_SETUP_IE. This reflects our ability to insert any ie into a mesh beacon, not simply path selection ies. Signed-off-by: Javier Cardona <javier@cozybit.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2011-04-12mac80211: Check for queued frames before entering power save.Vivek Natarajan
In a highly noisy environment, the tx rate of the driver drops and the application slows down since it has not yet received ACKs for the frames already queued in the hardware. Since this ACK may take more than 100ms, stopping the dev queues for entering PS at this stage breaks applications, WMM test cases in my testing. If there are frames already pending in the tx queue, postponing the PS logic helps to avoid redundant queue stops. When power save is enabled by default and in a noisy environment, this API certainly helps in improving the average throughput. Signed-off-by: Vivek Natarajan <vnatarajan@atheros.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2011-04-12Merge branch 'master' of ↵John W. Linville
git://git.kernel.org/pub/scm/linux/kernel/git/linville/wireless-next-2.6 into for-davem Conflicts: drivers/net/wireless/ath/ar9170/main.c drivers/net/wireless/ath/ar9170/phy.c drivers/net/wireless/zd1211rw/zd_rf_rf2959.c
2011-04-11caif: code cleanupStephen Hemminger
Cleanup of new CAIF code. * make local functions static * remove code that is never used * expand get_caif_conf() since wrapper is no longer needed * make args to comparison functions const * rename connect_req_to_link_param to keep exported names consistent Compile tested only. Signed-off-by: Stephen Hemminger <shemminger@vyatta.com> Acked-by: Sjur Brændeland <sjur.brandeland@stericsson.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2011-04-11Merge branch 'master' of ↵David S. Miller
master.kernel.org:/pub/scm/linux/kernel/git/davem/net-2.6 Conflicts: drivers/net/smsc911x.c
2011-04-11Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-2.6Linus Torvalds
* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-2.6: (34 commits) net: Add support for SMSC LAN9530, LAN9730 and LAN89530 mlx4_en: Restoring RX buffer pointer in case of failure mlx4: Sensing link type at device initialization ipv4: Fix "Set rt->rt_iif more sanely on output routes." MAINTAINERS: add entry for Xen network backend be2net: Fix suspend/resume operation be2net: Rename some struct members for clarity pppoe: drop PPPOX_ZOMBIEs in pppoe_flush_dev dsa/mv88e6131: add support for mv88e6085 switch ipv6: Enable RFS sk_rxhash tracking for ipv6 sockets (v2) be2net: Fix a potential crash during shutdown. bna: Fix for handling firmware heartbeat failure can: mcp251x: Allow pass IRQ flags through platform data. smsc911x: fix mac_lock acquision before calling smsc911x_mac_read iwlwifi: accept EEPROM version 0x423 for iwl6000 rt2x00: fix cancelling uninitialized work rtlwifi: Fix some warnings/bugs p54usb: IDs for two new devices wl12xx: fix potential buffer overflow in testmode nvs push zd1211rw: reset rx idle timer from tasklet ...
2011-04-10Disable rp_filter for IPsec packetsMichael Smith
The reverse path filter interferes with IPsec subnet-to-subnet tunnels, especially when the link to the IPsec peer is on an interface other than the one hosting the default route. With dynamic routing, where the peer might be reachable through eth0 today and eth1 tomorrow, it's difficult to keep rp_filter enabled unless fake routes to the remote subnets are configured on the interface currently used to reach the peer. IPsec provides a much stronger anti-spoofing policy than rp_filter, so this patch disables the rp_filter for packets with a security path. Signed-off-by: Michael Smith <msmith@cbnco.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2011-04-10fib_validate_source(): pass sk_buff instead of markMichael Smith
This makes sk_buff available for other use in fib_validate_source(). Signed-off-by: Michael Smith <msmith@cbnco.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2011-04-07Bluetooth: Move busy workqueue to struct l2cap_chanGustavo F. Padovan
As part of the moving channel stuff to l2cap_chan. Signed-off-by: Gustavo F. Padovan <padovan@profusion.mobi>
2011-04-07Bluetooth: Move srej and busy queues to struct l2cap_chanGustavo F. Padovan
As part of the moving channel stuff to l2cap_chan. Signed-off-by: Gustavo F. Padovan <padovan@profusion.mobi>
2011-04-07Bluetooth: Move ERTM timers to struct l2cap_chanGustavo F. Padovan
This also triggered a change in l2cap_send_disconn_req() parameters. Signed-off-by: Gustavo F. Padovan <padovan@profusion.mobi>
2011-04-07Bluetooth: Move remote info to struct l2cap_chanGustavo F. Padovan
As part of the moving channel stuff to l2cap_chan. Signed-off-by: Gustavo F. Padovan <padovan@profusion.mobi>
2011-04-07Bluetooth: Move SDU related vars to struct l2cap_chanGustavo F. Padovan
As part of the moving channel stuff to l2cap_chan. Signed-off-by: Gustavo F. Padovan <padovan@profusion.mobi>
2011-04-07Bluetooth: Move more ERTM stuff to struct l2cap_chanGustavo F. Padovan
As part of the moving channel stuff to l2cap_chan. Signed-off-by: Gustavo F. Padovan <padovan@profusion.mobi>
2011-04-07Bluetooth: Move of ERTM *_seq vars to struct l2cap_chanGustavo F. Padovan
As part of the moving channel to stuff to struct l2cap_chan. Signed-off-by: Gustavo F. Padovan <padovan@profusion.mobi>
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