- 26 Apr, 2007 40 commits
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Stephen Hemminger authored
Do some simple changes to make congestion control API faster/cleaner. * use ktime_t rather than timeval * merge rtt sampling into existing ack callback this means one indirect call versus two per ack. * use flags bits to store options/settings Signed-off-by:
Stephen Hemminger <shemminger@linux-foundation.org> Signed-off-by:
David S. Miller <davem@davemloft.net>
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Stephen Hemminger authored
This version more closely matches the paper, and fixes several math errors. The biggest difference is that it updates alpha/beta once per RTT Signed-off-by:
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John W. Linville authored
Correct minor typo in drivers/net/wireless/Kconfig identified by Stefano Brivio <stefano.brivio@polimi.it>. Signed-off-by:
John W. Linville <linville@tuxdriver.com> Signed-off-by:
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Johannes Berg authored
As scheduled, this patch removes the pointless wext over netlink code. Signed-off-by:
Johannes Berg <johannes@sipsolutions.net> Signed-off-by:
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Johannes Berg authored
This patch creates the core cfg80211 code along with some sysfs bits. This is a stripped down version to allow mac80211 to function, but doesn't include any configuration yet except for creating and removing virtual interfaces. This patch includes the nl80211 header file but it only contains the interface types which the cfg80211 interface for creating virtual interfaces relies on. Signed-off-by:
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Johannes Berg authored
This patch refactors the wireless Kconfig all over and already introduces net/wireless/Kconfig with just the WEXT bit for now, the cfg80211 patch will add to that as well. Signed-off-by:
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Johannes Berg authored
This patch adds the linux-wireless mailing list to all appropriate entries in the MAINTAINERS file. Signed-off-by:
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Andrew Morton authored
Signed-off-by:
Andrew Morton <akpm@linux-foundation.org> Signed-off-by:
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YOSHIFUJI Hideaki authored
Hint from David Miller <davem@davemloft.net>. Signed-off-by:
YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org> Signed-off-by:
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YOSHIFUJI Hideaki authored
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YOSHIFUJI Hideaki authored
Because stats pointer may not be aligned for u64, use memcpy to fill u64 values. Issue reported by David Miller <davem@davemloft.net>. Signed-off-by: -
Ilpo Järvinen authored
This is (mostly) automated change using magic: sed -e '/struct sock \*sk/ N' -e '/struct sock \*sk/ N' -e '/struct sock \*sk/ N' -e '/struct sock \*sk/ N' -e 's|struct sock \*sk,[\n\t ]*struct tcp_sock \*tp\([^{]*\n{\n\)| struct sock \*sk\1\tstruct tcp_sock *tp = tcp_sk(sk);\n|g' -e 's|struct sock \*sk, struct tcp_sock \*tp| struct sock \*sk|g' -e 's|sk, tp\([^-]\)|sk\1|g' Fixed four unused variable (tp) warnings that were introduced. In addition, manually added newlines after local variables and tweaked function arguments positioning. $ gcc --version gcc (GCC) 4.1.1 20060525 (Red Hat 4.1.1-1) ... $ codiff -fV built-in.o.old built-in.o.new net/ipv4/route.c: rt_cache_flush | +14 1 function changed, 14 bytes added net/ipv4/tcp.c: tcp_setsockopt | -5 tcp_sendpage | -25 tcp_sendmsg | -16 3 functions changed, 46 bytes removed net/ipv4/tcp_input.c: tcp_try_undo_recovery | +3 tcp_try_undo_dsack | +2 tcp_mark_head_lost | -12 tcp_ack | -15 tcp_event_data_recv | -32 tcp_rcv_state_process | -10 tcp_rcv_established | +1 7 functions changed, 6 bytes added, 69 bytes removed, diff: -63 net/ipv4/tcp_output.c: update_send_head | -9 tcp_transmit_skb | +19 tcp_cwnd_validate | +1 tcp_write_wakeup | -17 __tcp_push_pending_frames | -25 tcp_push_one | -8 tcp_send_fin | -4 7 functions changed, 20 bytes added, 63 bytes removed, diff: -43 built-in.o.new: 18 functions changed, 40 bytes added, 178 bytes removed, diff: -138 Signed-off-by:Ilpo Järvinen <ilpo.jarvinen@helsinki.fi> Signed-off-by:
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Borislav Petkov authored
Correct the function name in the comments supplied with register_netdev() Signed-off-by:
Borislav Petkov <bbpetkov@yahoo.de> Signed-off-by:
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G. Liakhovetski authored
Spelling corrections, from "to" to "too". Signed-off-by:
G. Liakhovetski <gl@dsa-ac.de> Signed-off-by:
Samuel Ortiz <samuel@sortiz.org> Signed-off-by:
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Samuel Ortiz authored
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Samuel Ortiz authored
In af_irda.c, the multiple IRDA_ASSERT() are either hiding bugs, useless, or returning the wrong value. Let's clean that up. Signed-off-by:
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Samuel Ortiz authored
This patch removes a cut'n'paste copy of wait_event_interruptible from irda_accept. Signed-off-by:
Samuel Ortiz <samuel@ortiz.org> Acked-by:
Olaf Kirch <olaf.kirch@oracle.com> Signed-off-by:
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Olaf Kirch authored
This patch silences an IRDA_ASSERT in irda_recvmsg_stream, as described in http://bugzilla.kernel.org/show_bug.cgi?id=7512 irda_disconnect_indication would set sk->sk_err to ECONNRESET, and a subsequent call to recvmsg would print an irritating kernel message and return -1. When a connected socket is closed by the peer, recvmsg should return 0 rather than an error. This patch fixes this. Signed-off-by:
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Olaf Kirch authored
This patch cleans up some code in irda_recvmsg_stream, replacing some homebrew code with prepare_to_wait/finish_wait, and by making the code honor sock_rcvtimeo. Signed-off-by:
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Andi Kleen authored
It is far too large to be an inline and not in any hot paths. Signed-off-by:
Andi Kleen <ak@suse.de> Signed-off-by:
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Andi Kleen authored
The function is quite big and has several call sites and nothing to collapse by compiler optimization on inlining. Besides it's nicer to read in a in .c file. Signed-off-by:
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Stephen Hemminger authored
Spring cleaning time... There seems to be a lot of places in the network code that have extra bogus semicolons after conditionals. Most commonly is a bogus semicolon after: switch() { } Signed-off-by: -
Stephen Hemminger authored
This is an implementation of TCP Illinois invented by Shao Liu at University of Illinois. It is a another variant of Reno which adapts the alpha and beta parameters based on RTT. The basic idea is to increase window less rapidly as delay approaches the maximum. See the papers and talks to get a more complete description. Signed-off-by:
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Stephen Hemminger authored
It isn't any faster to test a boolean global variable than do a simple check for empty list. Signed-off-by:
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Michal Ostrowski authored
pppoe_flush_dev() kicks all sockets bound to a device that is going down. In doing so, locks must be taken in the right order consistently (sock lock, followed by the pppoe_hash_lock). However, the scan process is based on us holding the sock lock. So, when something is found in the scan we must release the lock we're holding and grab the sock lock. This patch fixes race conditions between this code and pppoe_release(), both of which perform similar functions but would naturally prefer to grab locks in opposing orders. Both code paths are now going after these locks in a consistent manner. pppoe_hash_lock protects the contents of the "pppox_sock" objects that reside inside the hash. Thus, NULL'ing out the pppoe_dev field should be done under the protection of this lock. Signed-off-by:
Michal Ostrowski <mostrows@earthlink.net> Signed-off-by:
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Florian Zumbiehl authored
below you find a patch that fixes a memory leak when a PPPoE socket is release()d after it has been connect()ed, but before the PPPIOCGCHAN ioctl ever has been called on it. This is somewhat of a security problem, too, since PPPoE sockets can be created by any user, so any user can easily allocate all the machine's RAM to non-swappable address space and thus DoS the system. Is there any specific reason for PPPoE sockets being available to any unprivileged process, BTW? After all, you need a packet socket for the discovery stage anyway, so it's unlikely that any unprivileged process will ever need to create a PPPoE socket, no? Allocating all session IDs for a known AC is a kind of DoS, too, after all - with Juniper ERXes, this is really easy, actually, since they don't ever assign session ids above 8000 ... Signed-off-by:
Florian Zumbiehl <florz@florz.de> Acked-by:
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Florian Zumbiehl authored
below you find a patch that (hopefully) fixes a race between an interface going down and a connect() to a peer on that interface. Before, connect() would determine that an interface is up, then the interface could go down and all entries referring to that interface in the item_hash_table would be marked as ZOMBIEs and their references to the device would be freed, and after that, connect() would put a new entry into the hash table referring to the device that meanwhile is down already - which also would cause unregister_netdevice() to wait until the socket has been release()d. This patch does not suffice if we are not allowed to accept connect()s referring to a device that we already acked a NETDEV_GOING_DOWN for (that is: all references are only guaranteed to be freed after NETDEV_DOWN has been acknowledged, not necessarily after the NETDEV_GOING_DOWN already). And if we are allowed to, we could avoid looking through the hash table upon NETDEV_GOING_DOWN completely and only do that once we get the NETDEV_DOWN ... mostrows: pppoe_flush_dev is called on NETDEV_GOING_DOWN and NETDEV_DOWN to deal with this "late connect" issue. Ideally one would hope to notify users at the "NETDEV_GOING_DOWN" phase (just to pretend to be nice). However, it is the NETDEV_DOWN scan that takes all the responsibility for ensuring nobody is hanging around at that time. Signed-off-by:
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Florian Zumbiehl authored
below is a patch that just removes dead code/initializers without any effect (first access is an assignment) that I stumbled accross while reading the source. Signed-off-by:
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Stephen Hemminger authored
Getting warnings becuase skb_store_bits has skb as constant, but the function overwrites it. Looks like const was on the wrong side. Signed-off-by:
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Stephen Hemminger authored
The following is leftover from earlier change in net-2.6.22. Signed-off-by:
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Ralf Baechle authored
Signed-off-by:
Ralf Baechle <ralf@linux-mips.org> Signed-off-by:
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Peter P. Waskiewicz Jr authored
Add a packet socket option to allow the orig_dev index to be returned to userspace when passing traffic through a decapsulated device, such as the bonding driver. This is very useful for layer 2 traffic being able to report which physical device actually received the traffic, instead of having the encapsulating device hide that information. The new option is called PACKET_ORIGDEV. Signed-off-by:
Peter P. Waskiewicz Jr. <peter.p.waskiewicz.jr@intel.com> Signed-off-by:
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YOSHIFUJI Hideaki authored
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YOSHIFUJI Hideaki authored
This also fixes memory leak in error path. Signed-off-by:
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YOSHIFUJI Hideaki authored
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YOSHIFUJI Hideaki authored
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John Heffner authored
Add IP(V6)_PMTUDISC_PROBE value for IP(V6)_MTU_DISCOVER. This option forces us not to fragment, but does not make use of the kernel path MTU discovery. That is, it allows for user-mode MTU probing (or, packetization-layer path MTU discovery). This is particularly useful for diagnostic utilities, like traceroute/tracepath. Signed-off-by:
John Heffner <jheffner@psc.edu> Signed-off-by:
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John Heffner authored
Adds a check in ip6_fragment() mirroring ip_fragment() for packets that we can't fragment, and sends an ICMP Packet Too Big message in response. Signed-off-by:
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Patrick McHardy authored
Switch ingress queueing back to use ingress_lock. qdisc_lock_tree now locks both the ingress and egress qdiscs on the device. All changes to data that might be used on both ingress and egress needs to be protected by using qdisc_lock_tree instead of manually taking dev->queue_lock. Additionally the qdisc stats_lock needs to be initialized to ingress_lock for ingress qdiscs. Signed-off-by:
Patrick McHardy <kaber@trash.net> Signed-off-by:
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Patrick McHardy authored
Since we're now holding the rtnl during the entire dump operation, we can remove qdisc_tree_lock, whose only purpose is to protect dump callbacks from concurrent changes to the qdisc tree. Signed-off-by:
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