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2008-09-24cfg80211: reject invalid configuration itemsJohannes Berg1-7/+17
Reject configuring mesh-id for non-mesh, monitor flags for non-monitor. Signed-off-by: Johannes Berg <johannes@sipsolutions.net> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2008-09-24mac80211: allow interface settings changes only when downJohannes Berg1-0/+3
We currently allow monitor flags changes and mesh ID changes when the interface is up, which can lead to trouble. Change it to only allow when down. Signed-off-by: Johannes Berg <johannes@sipsolutions.net> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2008-09-24cfg80211: allow set_interface without typeJohannes Berg1-7/+8
Which then causes no type change. Signed-off-by: Johannes Berg <johannes@sipsolutions.net> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2008-09-24cfg80211: show interface typeJohannes Berg3-1/+8
This patch makes cfg80211 show the interface in the nl80211 information about a specific interface. API users are required to keep the type updated (everything else is fairly complicated) but you will get a warning if you fail to keep it updated. Signed-off-by: Johannes Berg <johannes@sipsolutions.net> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2008-09-24mac80211: make master iface not wirelessJohannes Berg7-99/+39
There's no need to register the master netdev with cfg80211, in fact, this is quite dangerous and lead to having to add checks for the master interface all over the config handlers. This patch removes the "ieee80211_ptr" from the master iface in favour of having a small netdev_priv() associated with the master interface that stores the ieee80211_local pointer. Because of this, a lot of code in the configuration handlers can go away. To make this patch easier to verify I have also removed a number of wiphy_priv() calls in favour of getting the sdata first and then the local pointer from that. Signed-off-by: Johannes Berg <johannes@sipsolutions.net> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2008-09-24cfg80211: clean up static regdomain messJohannes Berg1-53/+20
The statically defined regdomains are used in a very convoluted way, use them instead to prime the information we have and then continue operating normally. Signed-off-by: Johannes Berg <johannes@sipsolutions.net> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2008-09-24cfg80211: fix regulatory code constJohannes Berg2-33/+31
A few pointers and structures in the regulatory code are const, but because it wasn't done properly a whole bunch of bogus casts were needed to compile without warning. Mark everything const properly to avoid that kind of junk code. Signed-off-by: Johannes Berg <johannes@sipsolutions.net> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2008-09-24cfg80211: clean up regulatory messJohannes Berg3-230/+203
The recent code from Luis is an #ifdef hell and contains lots of code that's stuffed into the wrong file making a whole bunch of things needlessly non-static, and besides, what is it doing in core.c?? Signed-off-by: Johannes Berg <johannes@sipsolutions.net> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2008-09-24cfg80211: fix static regdomainsJohannes Berg1-16/+16
When Luis added the static regdomains back he used +/-20 of the centre frequencies to account for 40MHz bandwidth neglecting the fact that 40MHz bandwidth cannot be used on the channels close to the allowed band edges. Signed-off-by: Johannes Berg <johannes@sipsolutions.net> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2008-09-23tcp: Fix queue traversal in tcp_use_frto().David S. Miller1-0/+2
We must check tcp_skb_is_last() before doing a tcp_write_queue_next(). Signed-off-by: David S. Miller <davem@davemloft.net>
2008-09-23tcp: Fix order of tests in tcp_retransmit_skb()David S. Miller1-1/+1
tcp_write_queue_next() must only be made if we know that tcp_skb_is_last() evaluates to false. Signed-off-by: David S. Miller <davem@davemloft.net>
2008-09-23neigh: Remove by-hand SKB queue handling.David S. Miller1-13/+8
Signed-off-by: David S. Miller <davem@davemloft.net>
2008-09-22pkt_sched: Check the state of tx_queue in dequeue_skb()Jarek Poplawski1-4/+14
Check in dequeue_skb() the state of tx_queue for requeued skb to save on locking and re-requeuing, and possibly remove the current check in qdisc_run(). Based on the idea of Alexander Duyck. Signed-off-by: Jarek Poplawski <jarkao2@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-09-22pkt_sched: Always use q->requeue in dev_requeue_skb().David S. Miller1-4/+1
There is no reason to call into the complicated qdiscs just to remember the last SKB where we found the device blocked. The SKB is outside of the qdiscs realm at this point. Signed-off-by: David S. Miller <davem@davemloft.net>
2008-09-22pkt_sched: Make qdisc->gso_skb a list.David S. Miller1-5/+7
The idea is that we can use this to get rid of ->requeue(). Signed-off-by: David S. Miller <davem@davemloft.net>
2008-09-22net: network device name ifalias supportStephen Hemminger3-0/+72
This patch add support for keeping an additional character alias associated with an network interface. This is useful for maintaining the SNMP ifAlias value which is a user defined value. Routers use this to hold information like which circuit or line it is connected to. It is just an arbitrary text label on the network device. There are two exposed interfaces with this patch, the value can be read/written either via netlink or sysfs. This could be maintained just by the snmp daemon, but it is more generally useful for other management tools, and the kernel is good place to act as an agreed upon interface to store it. Signed-off-by: Stephen Hemminger <shemminger@vyatta.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-09-22Phonet: emit errors when a packet cannot be delivered locallyRemi Denis-Courmont1-4/+92
When there is no listener socket for a received packet, send an error back to the sender. Signed-off-by: Remi Denis-Courmont <remi.denis-courmont@nokia.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-09-22Phonet: proc interface for port rangeRemi Denis-Courmont4-1/+119
Phonet endpoints are bound to individual ports. This provides a /proc/sys/net/phonet (or sysctl) interface for selecting the range of automatically allocated ports (much like the ip_local_port_range with IPv4). Signed-off-by: Remi Denis-Courmont <remi.denis-courmont@nokia.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-09-22Phonet: provide MAC header operationsRemi Denis-Courmont1-0/+29
Signed-off-by: Rémi Denis-Courmont <remi.denis-courmont@nokia.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-09-22Phonet: Phonet datagram transport protocolRemi Denis-Courmont3-0/+304
This provides the basic SOCK_DGRAM transport protocol for Phonet. Signed-off-by: Remi Denis-Courmont <remi.denis-courmont@nokia.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-09-22Phonet: common socket glueRemi Denis-Courmont3-3/+337
This provides the socket API for the Phonet protocols family. Signed-off-by: Remi Denis-Courmont <remi.denis-courmont@nokia.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-09-22Phonet: Netlink interfaceRemi Denis-Courmont3-0/+188
This provides support for configuring Phonet addresses, notifying Phonet configuration changes, and dumping the configuration. Signed-off-by: Remi Denis-Courmont <remi.denis-courmont@nokia.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-09-22Phonet: network device and address handlingRemi Denis-Courmont3-0/+212
This provides support for adding Phonet addresses to and removing Phonet addresses from network devices. Signed-off-by: Rémi Denis-Courmont <remi.denis-courmont@nokia.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-09-22Phonet: add CONFIG_PHONETRemi Denis-Courmont4-0/+22
Signed-off-by: Remi Denis-Courmont <remi.denis-courmont@nokia.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-09-22Phonet: PF_PHONET protocol family supportRemi Denis-Courmont1-0/+216
This is the basis for the Phonet protocol families, and introduces the ETH_P_PHONET packet type and the PF_PHONET socket family. Signed-off-by: Remi Denis-Courmont <remi.denis-courmont@nokia.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-09-22Phonet: global definitionsRemi Denis-Courmont1-3/+6
Signed-off-by: Remi Denis-Courmont <remi.denis-courmont@nokia.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-09-22ipsec: Fix xfrm_state_walk raceHerbert Xu1-9/+30
As discovered by Timo Teräs, the currently xfrm_state_walk scheme is racy because if a second dump finishes before the first, we may free xfrm states that the first dump would walk over later. This patch fixes this by storing the dumps in a list in order to calculate the correct completion counter which cures this problem. I've expanded netlink_cb in order to accomodate the extra state related to this. It shouldn't be a big deal since netlink_cb is kmalloced for each dump and we're just increasing it by 4 or 8 bytes. Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-09-22net/atm/lec.c: drop code after returnJulia Lawall1-1/+0
The break after the return serves no purpose. Signed-off-by: Julia Lawall <julia@diku.dk> Reviewed-by: Richard Genoud <richard.genoud@gmail.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-09-22net: em_cmp.c use unaligned access helpersHarvey Harrison1-6/+3
Signed-off-by: Harvey Harrison <harvey.harrison@gmail.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-09-22netfilter: xt_time gives a wrong monthday in a leap yearKaihui Luo1-2/+4
The function localtime_3 in xt_time.c gives a wrong monthday in a leap year after 28th 2. calculating monthday should use the array days_since_leapyear[] not days_since_year[] in a leap year. Signed-off-by: Kaihui Luo <kaih.luo@gmail.com> Acked-by: Jan Engelhardt <jengelh@computergmbh.de> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-09-21net: Remove __skb_insert() calls outside of skbuff internals.David S. Miller2-5/+4
This minor cleanup simplifies later changes which will convert struct sk_buff and friends over to using struct list_head. Signed-off-by: David S. Miller <davem@davemloft.net>
2008-09-21tcp: advertise MSS requested by userTom Quetchenbach2-3/+14
I'm trying to use the TCP_MAXSEG option to setsockopt() to set the MSS for both sides of a bidirectional connection. man tcp says: "If this option is set before connection establishment, it also changes the MSS value announced to the other end in the initial packet." However, the kernel only uses the MTU/route cache to set the advertised MSS. That means if I set the MSS to, say, 500 before calling connect(), I will send at most 500-byte packets, but I will still receive 1500-byte packets in reply. This is a bug, either in the kernel or the documentation. This patch (applies to latest net-2.6) reduces the advertised value to that requested by the user as long as setsockopt() is called before connect() or accept(). This seems like the behavior that one would expect as well as that which is documented. I've tried to make sure that things that depend on the advertised MSS are set correctly. Signed-off-by: Tom Quetchenbach <virtualphtn@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-09-20net: Use hton[sl]() instead of __constant_hton[sl]() where applicableArnaldo Carvalho de Melo11-35/+35
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-09-20multiq: requeue should rewind the current_bandAlexander Duyck1-0/+5
Currently dequeueing a packet and requeueing the same packet will cause a different packet to be pulled on the next dequeue. This change forces requeue to rewind the current_band. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-09-20tcp: back retransmit_high when it over-estimatedIlpo Järvinen1-2/+10
If lost skb is sacked, we might have nothing to retransmit as high as the retransmit_high is pointing to, so place it lower to avoid unnecessary walking. This is mainly for the case where high L'ed skbs gets sacked. Signed-off-by: Ilpo Järvinen <ilpo.jarvinen@helsinki.fi> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-09-20tcp: don't clear lost_skb_hint when not necessaryIlpo Järvinen1-1/+13
Most importantly avoid doing it with cumulative ACK. However, since we have lost_cnt_hint in the picture as well needing adjustments, it's not as trivial as dealing with retransmit_skb_hint (and cannot be done in the all place we could trivially leave retransmit_skb_hint untouched). With the previous patch, this should mostly remove O(n^2) behavior while cumulative ACKs start flowing once rexmit after a lossy round-trip made it through. Signed-off-by: Ilpo Järvinen <ilpo.jarvinen@helsinki.fi> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-09-20tcp: don't clear retransmit_skb_hint when not necessaryIlpo Järvinen2-4/+8
Most importantly avoid doing it with cumulative ACK. Not clearing means that we no longer need n^2 processing in resolution of each fast recovery. Signed-off-by: Ilpo Järvinen <ilpo.jarvinen@helsinki.fi> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-09-20tcp: remove retransmit_skb_hint clearing from failureIlpo Järvinen1-3/+1
This doesn't much sense here afaict, probably never has. Since fragmenting and collapsing deal the hints by themselves, there should be very little reason for the rexmit loop to do that. Signed-off-by: Ilpo Järvinen <ilpo.jarvinen@helsinki.fi> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-09-20tcp: reorganize retransmit code loopsIlpo Järvinen1-46/+33
Both loops are quite similar, so they can be combined with little effort. As a result, forward_skb_hint becomes obsolete as well. Signed-off-by: Ilpo Järvinen <ilpo.jarvinen@helsinki.fi> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-09-20tcp: remove tp->lost_out guard to make joining diff nicerIlpo Järvinen1-37/+38
The validity of the retransmit_high must then be ensured if no L'ed skb exits! This makes a minor change to behavior, we now have to iterate the head to find out that the loop terminates. Signed-off-by: Ilpo Järvinen <ilpo.jarvinen@helsinki.fi> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-09-20tcp: Reorganize skb tagbit checksIlpo Järvinen1-19/+19
Signed-off-by: Ilpo Järvinen <ilpo.jarvinen@helsinki.fi> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-09-20tcp: remove obsolete validity concernIlpo Järvinen1-4/+0
Signed-off-by: Ilpo Järvinen <ilpo.jarvinen@helsinki.fi> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-09-20tcp: add tcp_can_forward_retransmitIlpo Järvinen1-18/+28
Signed-off-by: Ilpo Järvinen <ilpo.jarvinen@helsinki.fi> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-09-20tcp: No need to clear retransmit_skb_hint when SACKingIlpo Järvinen1-7/+0
Because lost counter no longer requires tuning, this is trivial to remove (the tuning wouldn't have been too hard either) because no "new" retransmittable skb appeared below retransmit_skb_hint when SACKing for sure. Signed-off-by: Ilpo Järvinen <ilpo.jarvinen@helsinki.fi> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-09-20tcp: Kill precaution that's very likely obsoleteIlpo Järvinen1-4/+0
I suspect it might have been related to the changed amount of lost skbs, which was counted by retransmit_cnt_hint that got changed. The place for this clearing was very illogical anyway, it should have been after the LOST-bit clearing loop to make any sense. Signed-off-by: Ilpo Järvinen <ilpo.jarvinen@helsinki.fi> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-09-20tcp: convert retransmit_cnt_hint to seqnoIlpo Järvinen2-32/+27
Main benefit in this is that we can then freely point the retransmit_skb_hint to anywhere we want to because there's no longer need to know what would be the count changes involve, and since this is really used only as a terminator, unnecessary work is one time walk at most, and if some retransmissions are necessary after that point later on, the walk is not full waste of time anyway. Since retransmit_high must be kept valid, all lost markers must ensure that. Now I also have learned how those "holes" in the rexmittable skbs can appear, mtu probe does them. So I removed the misleading comment as well. Signed-off-by: Ilpo Järvinen <ilpo.jarvinen@helsinki.fi> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-09-20tcp: add helper for lost bit togglingIlpo Järvinen1-10/+12
This useful because we'd need to verifying soon in many places which makes things slightly more complex than it used to be. Signed-off-by: Ilpo Järvinen <ilpo.jarvinen@helsinki.fi> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-09-20tcp: move tcp_verify_retransmit_hintIlpo Järvinen1-13/+13
Signed-off-by: Ilpo Järvinen <ilpo.jarvinen@helsinki.fi> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-09-20tcp: Partial hint clearing has again become meaninglessIlpo Järvinen2-5/+4
Ie., the difference between partial and all clearing doesn't exists anymore since the SACK optimizations got dropped by an sacktag rewrite. Signed-off-by: Ilpo Järvinen <ilpo.jarvinen@helsinki.fi> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-09-19Merge branch 'master' of ↵David S. Miller38-2020/+3200
git://git.kernel.org/pub/scm/linux/kernel/git/linville/wireless-next-2.6
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