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2006-09-22[RTNETLINK]: Don't return error on no-metrics.David S. Miller
Instead just cancel the nested attribute and return 0. Signed-off-by: David S. Miller <davem@davemloft.net>
2006-09-22[IPv6] route: Convert FIB6 dumping to use new netlink apiThomas Graf
Signed-off-by: Thomas Graf <tgraf@suug.ch> Signed-off-by: David S. Miller <davem@davemloft.net>
2006-09-22[NET] neighbour: reduce exportsStephen Hemminger
There are several symbols only used by rtnetlink and since it can not be a module, there is no reason to export them. Signed-off-by: Stephen Hemminger <shemminger@osdl.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2006-09-22[NET/IPV4/IPV6]: Change some sysctl variables to __read_mostlyBrian Haley
Change net/core, ipv4 and ipv6 sysctl variables to __read_mostly. Couldn't actually measure any performance increase while testing (.3% I consider noise), but seems like the right thing to do. Signed-off-by: Brian Haley <brian.haley@hp.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2006-09-22[RTNETLINK]: Unexport rtnl socketThomas Graf
Signed-off-by: Thomas Graf <tgraf@suug.ch> Signed-off-by: David S. Miller <davem@davemloft.net>
2006-09-22[NET] link: Convert notifications to use rtnl_notify()Thomas Graf
Signed-off-by: Thomas Graf <tgraf@suug.ch> Signed-off-by: David S. Miller <davem@davemloft.net>
2006-09-22[WIRELESS]: Convert notifications to use rtnl_notify()Thomas Graf
Signed-off-by: Thomas Graf <tgraf@suug.ch> Signed-off-by: David S. Miller <davem@davemloft.net>
2006-09-22[NEIGH]: Convert neighbour notifications ot use rtnl_notify()Thomas Graf
Signed-off-by: Thomas Graf <tgraf@suug.ch> Signed-off-by: David S. Miller <davem@davemloft.net>
2006-09-22[NET] fib_rules: Convert fib rule notification to use rtnl_notify()Thomas Graf
Adds support for NLM_F_ECHO to simplify the process of identifying inserted rules with an auto generated priority. Signed-off-by: Thomas Graf <tgraf@suug.ch> Signed-off-by: David S. Miller <davem@davemloft.net>
2006-09-22[RTNETLINK]: Add rtnetlink notification interfaceThomas Graf
Adds rtnl_notify() to send rtnetlink notification messages and rtnl_set_sk_err() to report notification errors as socket errors in order to indicate the need of a resync due to loss of events. nlmsg_report() is added to properly document the meaning of NLM_F_ECHO. Signed-off-by: Thomas Graf <tgraf@suug.ch> Signed-off-by: David S. Miller <davem@davemloft.net>
2006-09-22[RTNETLINK]: Use rtnl_unicast() for rtnetlink unicastsThomas Graf
Signed-off-by: Thomas Graf <tgraf@suug.ch> Signed-off-by: David S. Miller <davem@davemloft.net>
2006-09-22[NET] netdev: Check name lengthStephen Hemminger
Some improvements to robust name interface. These API's are safe now by convention, but it is worth providing some safety checks against future bugs. Signed-off-by: Stephen Hemminger <shemminger@osdl.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2006-09-22[NET]: Introduce RTA_TABLE/FRA_TABLE attributesPatrick McHardy
Introduce RTA_TABLE route attribute and FRA_TABLE routing rule attribute to hold 32 bit routing table IDs. Usespace compatibility is provided by continuing to accept and send the rtm_table field, but because of its limited size it can only carry the low 8 bits of the table ID. This implies that if larger IDs are used, _all_ userspace programs using them need to use RTA_TABLE. Signed-off-by: Patrick McHardy <kaber@trash.net> Signed-off-by: David S. Miller <davem@davemloft.net>
2006-09-22[NET]: Remove unnecessary config.h includes from net/Dave Jones
config.h is automatically included by kbuild these days. Signed-off-by: Dave Jones <davej@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2006-09-22[NEIGH]: Move netlink neighbour table bits to linux/neighbour.hThomas Graf
rtnetlink_rcv_msg() is not longer required to parse attributes for the neighbour tables layer, remove dependency on obsolete and buggy rta_buf. Signed-off-by: Thomas Graf <tgraf@suug.ch> Signed-off-by: David S. Miller <davem@davemloft.net>
2006-09-22[NEIGH]: Convert neighbour table dumping to new netlink apiThomas Graf
Also fixes skipping of already dumped neighbours. Signed-off-by: Thomas Graf <tgraf@suug.ch> Signed-off-by: David S. Miller <davem@davemloft.net>
2006-09-22[NEIGH]: Convert neighbour table modification to new netlink apiThomas Graf
Signed-off-by: Thomas Graf <tgraf@suug.ch> Signed-off-by: David S. Miller <davem@davemloft.net>
2006-09-22[NEIGH]: Move netlink neighbour bits to linux/neighbour.hThomas Graf
Moves netlink neighbour bits to linux/neighbour.h. Also moves bits to be exported to userspace from net/neighbour.h to linux/neighbour.h and removes __KERNEL__ guards, userspace is not supposed to be using it. rtnetlink_rcv_msg() is not longer required to parse attributes for the neighbour layer, remove dependency on obsolete and buggy rta_buf. Signed-off-by: Thomas Graf <tgraf@suug.ch> Signed-off-by: David S. Miller <davem@davemloft.net>
2006-09-22[NEIGH]: Convert neighbour dumping to new netlink apiThomas Graf
Signed-off-by: Thomas Graf <tgraf@suug.ch> Signed-off-by: David S. Miller <davem@davemloft.net>
2006-09-22[NEIGH]: Convert neighbour addition to new netlink apiThomas Graf
Fixes: Return EAFNOSUPPORT if no table matches the specified address family. Signed-off-by: Thomas Graf <tgraf@suug.ch> Signed-off-by: David S. Miller <davem@davemloft.net>
2006-09-22[NEIGH]: Convert neighbour deletion to new netlink apiThomas Graf
Fixes: Return ENOENT if the neighbour is not found (was EINVAL) Return EAFNOSUPPORT if no table matches the specified address family. Signed-off-by: Thomas Graf <tgraf@suug.ch> Signed-off-by: David S. Miller <davem@davemloft.net>
2006-09-22[NET]: Replace CHECKSUM_HW by CHECKSUM_PARTIAL/CHECKSUM_COMPLETEPatrick McHardy
Replace CHECKSUM_HW by CHECKSUM_PARTIAL (for outgoing packets, whose checksum still needs to be completed) and CHECKSUM_COMPLETE (for incoming packets, device supplied full checksum). Patch originally from Herbert Xu, updated by myself for 2.6.18-rc3. Signed-off-by: Patrick McHardy <kaber@trash.net> Signed-off-by: David S. Miller <davem@davemloft.net>
2006-09-22[NET]: Convert link dumping to new netlink apiThomas Graf
Transforms netlink code to dump link tables to use the new netlink api. Makes rtnl_getlink() available regardless of the availability of the wireless extensions. Adding copy_rtnl_link_stats() avoids the structural dependency of struct rtnl_link_stats on struct net_device_stats and thus avoids troubles later on. Signed-off-by: Thomas Graf <tgraf@suug.ch> Signed-off-by: David S. Miller <davem@davemloft.net>
2006-09-22[NET]: Convert link modification to new netlink apiThomas Graf
Transforms do_setlink() into rtnl_setlink() using the new netlink api. A warning message printed to the console is added in the event that a change request fails while part of the change request has been comitted already. The ioctl() based nature of net devices makes it almost impossible to move on to atomic netlink operations without obsoleting some of the functionality. Signed-off-by: Thomas Graf <tgraf@suug.ch> Signed-off-by: David S. Miller <davem@davemloft.net>
2006-09-22[IPv4]: Move interface address bits to linux/if_addr.hThomas Graf
Signed-off-by: Thomas Graf <tgraf@suug.ch> Signed-off-by: David S. Miller <davem@davemloft.net>
2006-09-22[NET]: Protocol Independant Policy Routing Rules FrameworkThomas Graf
Derived from net/ipv/fib_rules.c Signed-off-by: Thomas Graf <tgraf@suug.ch> Signed-off-by: David S. Miller <davem@davemloft.net>
2006-09-22[MLSXFRM]: Flow based matching of xfrm policy and stateVenkat Yekkirala
This implements a seemless mechanism for xfrm policy selection and state matching based on the flow sid. This also includes the necessary SELinux enforcement pieces. Signed-off-by: Venkat Yekkirala <vyekkirala@TrustedCS.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2006-09-22[MLSXFRM]: Add security sid to sockVenkat Yekkirala
This adds security for IP sockets at the sock level. Security at the sock level is needed to enforce the SELinux security policy for security associations even when a sock is orphaned (such as in the TCP LAST_ACK state). This will also be used to enforce SELinux controls over data arriving at or leaving a child socket while it's still waiting to be accepted. Signed-off-by: Venkat Yekkirala <vyekkirala@TrustedCS.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2006-09-17[NEIGH]: neigh_table_clear() doesn't free statsKirill Korotaev
neigh_table_clear() doesn't free tbl->stats. Found by Alexey Kuznetsov. Though Alexey considers this leak minor for mainstream, I still believe that cleanup code should not forget to free some of the resources :) At least, this is critical for OpenVZ with virtualized neighbour tables. Signed-Off-By: Kirill Korotaev <dev@openvz.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2006-08-17[NET]: Disallow whitespace in network device names.David S. Miller
It causes way too much trouble and confusion in userspace. Signed-off-by: David S. Miller <davem@davemloft.net>
2006-08-17[NET]: Fix potential stack overflow in net/core/utils.cSuresh Siddha
On High end systems (1024 or so cpus) this can potentially cause stack overflow. Fix the stack usage. Signed-off-by: Suresh Siddha <suresh.b.siddha@intel.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2006-08-17[VLAN]: Make sure bonding packet drop checks get done in hwaccel RX path.David S. Miller
Since __vlan_hwaccel_rx() is essentially bypassing the netif_receive_skb() call that would have occurred if we did the VLAN decapsulation in software, we are missing the skb_bond() call and the assosciated checks it does. Export those checks via an inline function, skb_bond_should_drop(), and use this in __vlan_hwaccel_rx(). Signed-off-by: David S. Miller <davem@davemloft.net>
2006-08-09Merge gregkh@master.kernel.org:/pub/scm/linux/kernel/git/davem/net-2.6Greg Kroah-Hartman
2006-08-09[NET]: add_timer -> mod_timer() in dst_run_gc()Dmitry Mishin
Patch from Dmitry Mishin <dim@openvz.org>: Replace add_timer() by mod_timer() in dst_run_gc in order to avoid BUG message. CPU1 CPU2 dst_run_gc() entered dst_run_gc() entered spin_lock(&dst_lock) ..... del_timer(&dst_gc_timer) fail to get lock .... mod_timer() <--- puts timer back to the list add_timer(&dst_gc_timer) <--- BUG because timer is in list already. Found during OpenVZ internal testing. At first we thought that it is OpenVZ specific as we added dst_run_gc(0) call in dst_dev_event(), but as Alexey pointed to me it is possible to trigger this condition in mainstream kernel. F.e. timer has fired on CPU2, but the handler was preeempted by an irq before dst_lock is tried. Meanwhile, someone on CPU1 adds an entry to gc list and starts the timer. If CPU2 was preempted long enough, this timer can expire simultaneously with resuming timer handler on CPU1, arriving exactly to the situation described. Signed-off-by: Dmitry Mishin <dim@openvz.org> Signed-off-by: Kirill Korotaev <dev@openvz.org> Signed-off-by: Alexey Kuznetsov <kuznet@ms2.inr.ac.ru> Signed-off-by: David S. Miller <davem@davemloft.net>
2006-08-08[RTNETLINK]: Fix IFLA_ADDRESS handling.David S. Miller
The ->set_mac_address handlers expect a pointer to a sockaddr which contains the MAC address, whereas IFLA_ADDRESS provides just the MAC address itself. So whip up a sockaddr to wrap around the netlink attribute for the ->set_mac_address call. Signed-off-by: David S. Miller <davem@davemloft.net>
2006-08-07[PKTGEN]: Make sure skb->{nh,h} are initialized in fill_packet_ipv6() too.David S. Miller
Mirror the bug fix from fill_packet_ipv4() Signed-off-by: David S. Miller <davem@davemloft.net>
2006-08-07[PKTGEN]: Fix oops when used with balance-tlb bondingChen-Li Tien
Signed-off-by: Chen-Li Tien <cltien@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2006-08-07[NET]: Assign skb->dev in netdev_alloc_skbChristoph Hellwig
Signed-off-by: Christoph Hellwig <hch@lst.de> Signed-off-by: David S. Miller <davem@davemloft.net>
2006-08-04[PATCH] Send wireless netlink events with a clean slateHerbert Xu
Drivers expect to be able to call wireless_send_event in arbitrary contexts. On the other hand, netlink really doesn't like being invoked in an IRQ context. So we need to postpone the sending of netlink skb's to a tasklet. Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2006-08-02[NET]: Fix more per-cpu typosAlexey Dobriyan
Signed-off-by: Alexey Dobriyan <adobriyan@gmail.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2006-08-02[I/OAT]: Remove CPU hotplug lock from net_dma_rebalanceChris Leech
Remove the lock_cpu_hotplug()/unlock_cpu_hotplug() calls from net_dma_rebalance The lock_cpu_hotplug()/unlock_cpu_hotplug() sequence in net_dma_rebalance is both incorrect (as pointed out by David Miller) because lock_cpu_hotplug() may sleep while the net_dma_event_lock spinlock is held, and unnecessary (as pointed out by Andrew Morton) as spin_lock() disables preemption which protects from CPU hotplug events. Signed-off-by: Chris Leech <christopher.leech@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2006-08-02[NET]: skb_queue_lock_key() is no longer used.Adrian Bunk
Signed-off-by: Adrian Bunk <bunk@stusta.de> Acked-by: Arjan van de Ven <arjan@linux.intel.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2006-08-02[NET]: Kill the WARN_ON() calls for checksum fixups.David S. Miller
We have a more complete solution in the works, involving the seperation of CHECKSUM_HW on input vs. output, and having netfilter properly do incremental checksums. But that is a very involved patch and is thus 2.6.19 material. What we have now is infinitely better than the past, wherein all TSO packets were dropped due to corrupt checksums as soon at the NAT module was loaded. At least now, the checksums do get fixed up, it just isn't the cleanest nor most optimal solution. Signed-off-by: David S. Miller <davem@davemloft.net>
2006-08-02[NET]: Add netdev_alloc_skb().Christoph Hellwig
Add a dev_alloc_skb variant that takes a struct net_device * paramater. For now that paramater is unused, but I'll use it to allocate the skb from node-local memory in a follow-up patch. Also there have been some other plans mentioned on the list that can use it. Signed-off-by: Christoph Hellwig <hch@lst.de> Signed-off-by: David S. Miller <davem@davemloft.net>
2006-08-02[NET]: Core net changes to generate neteventsTom Tucker
Generate netevents for: - neighbour changes - routing redirects - pmtu changes Signed-off-by: Tom Tucker <tom@opengridcomputing.com> Signed-off-by: Steve Wise <swise@opengridcomputing.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2006-08-02[NET]: Network Event Notifier Mechanism.Tom Tucker
This patch uses notifier blocks to implement a network event notifier mechanism. Clients register their callback function by calling register_netevent_notifier() like this: static struct notifier_block nb = { .notifier_call = my_callback_func }; ... register_netevent_notifier(&nb); Signed-off-by: Tom Tucker <tom@opengridcomputing.com> Signed-off-by: Steve Wise <swise@opengridcomputing.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2006-08-02[NET]: Fix ___pskb_trim when entire frag_list needs droppingHerbert Xu
When the trim point is within the head and there is no paged data, ___pskb_trim fails to drop the first element in the frag_list. This patch fixes this by moving the len <= offset case out of the page data loop. This patch also adds a missing kfree_skb on the frag that we just cloned. Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au> Signed-off-by: David S. Miller <davem@davemloft.net>
2006-07-21[I/OAT]: net/core/user_dma.c should #include <net/netdma.h>Adrian Bunk
Every file should #include the headers containing the prototypes for its global functions. Especially in cases like this one where gcc can tell us through a compile error that the prototype was wrong... Signed-off-by: Adrian Bunk <bunk@stusta.de> Signed-off-by: David S. Miller <davem@davemloft.net>
2006-07-17[NET] ethtool: fix oops by testing correct struct memberJeff Garzik
Noticed by Willy Tarreau. Signed-off-by: Jeff Garzik <jeff@garzik.org>
2006-07-13[NET]: Update frag_list in pskb_trimHerbert Xu
When pskb_trim has to defer to ___pksb_trim to trim the frag_list part of the packet, the frag_list is not updated to reflect the trimming. This will usually work fine until you hit something that uses the packet length or tail from the frag_list. Examples include esp_output and ip_fragment. Another problem caused by this is that you can end up with a linear packet with a frag_list attached. It is possible to get away with this if we audit everything to make sure that they always consult skb->len before going down onto frag_list. In fact we can do the samething for the paged part as well to avoid copying the data area of the skb. For now though, let's do the conservative fix and update frag_list. Many thanks to Marco Berizzi for helping me to track down this bug. This 4-year old bug took 3 months to track down. Marco was very patient indeed :) Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au> Signed-off-by: David S. Miller <davem@davemloft.net>