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2006-12-02[DCCP] ccid3: Resolve small FIXMEGerrit Renker
This considers the case - ACK received while no packet has been sent so far. Resolved by printing a (rate-limited) warning message. Further removes an unnecessary BUG_ON in ccid3_hc_tx_packet_recv, received feedback on a terminating connection is simply ignored. Signed-off-by: Gerrit Renker <gerrit@erg.abdn.ac.uk> Signed-off-by: Ian McDonald <ian.mcdonald@jandi.co.nz> Signed-off-by: Arnaldo Carvalho de Melo <acme@mandriva.com>
2006-12-02[DCCP] ccid3: Remove redundant statements in ccid3_hc_tx_packet_sentGerrit Renker
This patch removes a switch statement which is redundant since, * nothing is done in states TFRC_SSTATE_NO_SENT/TFRC_SSTATE_NO_FBACK * it is impossible that the function is called in the state TFRC_SSTATE_TERM, since --the function is called, in dccp_write_xmit, after ccid3_hc_tx_send_packet --if ccid3_hc_tx_send_packet is called in state TFRC_SSTATE_TERM, it returns -EINVAL, which means that ccid3_hc_tx_packet_sent will not be called (compare dccp_write_xmit) --> therefore, this case is logically impossible * the remaining state is TFRC_SSTATE_FBACK which conditionally updates t_ipi, t_nom, and t_delta. This is a no-op, since --t_ipi only changes when feedback is received --however, when feedback arrives via ccid3_hc_tx_packet_recv, there is an identical code block which performs the same set of operations --performing the same set of operations again in ccid3_hc_tx_packet_sent therefore does not change anything, since between the time of receiving the last feedback (and therefore update of t_ipi, t_nom, and t_delta), the value of t_ipi has not changed --since t_ipi has not changed, the values of t_delta and t_nom also do not change, they depend fully on t_ipi Signed-off-by: Gerrit Renker <gerrit@erg.abdn.ac.uk> Acked-by: Ian McDonald <ian.mcdonald@jandi.co.nz> Signed-off-by: Arnaldo Carvalho de Melo <acme@mandriva.com>
2006-12-02[DCCP] ccid3: Avoid congestion control on zero-sized data packetsGerrit Renker
This resolves an `XXX' in ccid3_hc_tx_send_packet(). The function is only called on Data and DataAck packets and returns a negative result on zero-sized messages. This is a reasonable policy since CCID 3 is a congestion-control module and congestion control on zero-sized Data(Ack) packets is in a way pathological. The patch uses a more suitable error code for this case, it returns the Posix.1 code `EBADMSG' ("Not a data message") instead of `ENOTCONN'. As a result of ignoring zero-sized packets, a the condition for a warning "First packet is data" in ccid3_hc_tx_packet_sent is always satisfied; this message has been removed since it will always be printed. Signed-off-by: Gerrit Renker <gerrit@erg.abdn.ac.uk> Signed-off-by: Ian McDonald <ian.mcdonald@jandi.co.nz> Signed-off-by: Arnaldo Carvalho de Melo <acme@mandriva.com>
2006-12-02[DCCP] ccid3: Simplify control flow of ccid3_hc_tx_send_packetGerrit Renker
This makes some logically equivalent simplifications, by replacing rc - values plus goto's with direct return statements. Signed-off-by: Gerrit Renker <gerrit@erg.abdn.ac.uk> Signed-off-by: Ian McDonald <ian.mcdonald@jandi.co.nz> Signed-off-by: Arnaldo Carvalho de Melo <acme@mandriva.com>
2006-12-02[DCCP] ccid3: Fix calculation of t_ipi time of scheduled transmissionGerrit Renker
Problem:
2006-12-02[DCCP] ccid3: Simplify control flow in the calculation of t_ipiGerrit Renker
This patch performs a simplifying (performance) optimisation: In each call of the inline function ccid3_calc_new_t_ipi(), the state is tested against TFRC_SSTATE_NO_FBACK. This is expensive when the function is called very often. A simpler solution, implemented by this patch, is to adapt the control flow. Background:
2006-12-02[DCCP] ccid3: Fix bug in calculation of first t_nom and first t_ipiGerrit Renker
Problem:
2006-12-02[DCCP] ccid2: Allow window to grow largerAndrea Bittau
Now that we can stuff bigger ack vectors into options. Signed-off-by: Andrea Bittau <a.bittau@cs.ucl.ac.uk> Signed-off-by: Arnaldo Carvalho de Melo <acme@mandriva.com>
2006-12-02[DCCP] ackvec: Split long ack vectors across multiple optionsAndrea Bittau
Ack vectors grow proportional to the window size. If an ack vector does not fit into a single option, it must be spread across multiple options. This patch will allow for windows to grow larger. Committer note: Simplified the patch a bit, original algorithm kept. Signed-off-by: Andrea Bittau <a.bittau@cs.ucl.ac.uk> Signed-off-by: Arnaldo Carvalho de Melo <acme@mandriva.com>
2006-12-02[DCCP] ackvec: infrastructure for sending more than one ackvec per packetAndrea Bittau
Commiter note: This was split from Andrea's original patch, in the process I changed the type of the ackvec index fields to u16 instead of to int and haven't folded dccp_ackvec_parse with dccp_ackvec_check_rcv_ackno. Next patch will actually do the insertion of more than one ackvec per packet, using, initially, up to a max of 2 ackvecs as per Andrea's original patch, then I'll work on support for larger ackvecs, be it using a sysctl or using setsockopt. Signed-off-by: Andrea Bittau <a.bittau@cs.ucl.ac.uk> Signed-off-by: Arnaldo Carvalho de Melo <acme@mandriva.com>
2006-12-02[DCCP] ackvec: Remove unused dccpav_ack_ptr field from dccp_ackvecAndrea Bittau
Commiter note: original patch was splitted. Signed-off-by: Andrea Bittau <a.bittau@cs.ucl.ac.uk> Signed-off-by: Arnaldo Carvalho de Melo <acme@mandriva.com>
2006-12-02[DECNET] address: Convert to new netlink interfaceThomas Graf
Extends the netlink interface to support the __le16 type and converts address addition, deletion and, dumping to use the new netlink interface. Fixes multiple occasions of possible illegal memory references due to not validated netlink attributes. Signed-off-by: Thomas Graf <tgraf@suug.ch> Signed-off-by: David S. Miller <davem@davemloft.net>
2006-12-02[DECNET] address: Rename rtmsg_ifa() to dn_ifaddr_notify()Thomas Graf
The name rtmsg_ifa is heavly overused and confusing. Signed-off-by: Thomas Graf <tgraf@suug.ch> Signed-off-by: David S. Miller <davem@davemloft.net>
2006-12-02[DECNET] address: Calculate accurate message size for netlink notificationsThomas Graf
Signed-off-by: Thomas Graf <tgraf@suug.ch> Signed-off-by: David S. Miller <davem@davemloft.net>
2006-12-02[IPV6]: Improve IPv6 tunnel error reportingVille Nuorvala
Log an error if the remote tunnel endpoint is unable to handle tunneled packets. Signed-off-by: Ville Nuorvala <vnuorval@tcs.hut.fi> Signed-off-by: David S. Miller <davem@davemloft.net>
2006-12-02[IPV6]: Don't allocate memory for Tunnel Encapsulation Limit OptionVille Nuorvala
Signed-off-by: Ville Nuorvala <vnuorval@tcs.hut.fi> Signed-off-by: David S. Miller <davem@davemloft.net>
2006-12-02[IPV6]: Allow link-local tunnel endpointsVille Nuorvala
Allow link-local tunnel endpoints if the underlying link is defined. Signed-off-by: Ville Nuorvala <vnuorval@tcs.hut.fi> Signed-off-by: David S. Miller <davem@davemloft.net>
2006-12-02[IPV6]: Do mandatory IPv6 tunnel endpoint checks in realtimeVille Nuorvala
Doing the mandatory tunnel endpoint checks when the tunnel is set up isn't enough as interfaces can go up or down and addresses can be added or deleted after this. The checks need to be done realtime when the tunnel is processing a packet. Signed-off-by: Ville Nuorvala <vnuorval@tcs.hut.fi> Signed-off-by: David S. Miller <davem@davemloft.net>
2006-12-02[IPV6]: Fix SIOCCHGTUNNEL bug in IPv6 tunnelsVille Nuorvala
A logic bug in tunnel lookup could result in duplicate tunnels when changing an existing device. Signed-off-by: Ville Nuorvala <vnuorval@tcs.hut.fi> Signed-off-by: David S. Miller <davem@davemloft.net>
2006-12-02[GENETLINK] ctrl: Avoid empty CTRL_ATTR_OPS attribute when dumpingThomas Graf
Based on Jamal's patch but compiled and even tested. :-) Signed-off-by: Thomas Graf <tgraf@suug.ch> Signed-off-by: David S. Miller <davem@davemloft.net>
2006-12-02[XFRM]: Use kmemdup where appropriateArnaldo Carvalho de Melo
Signed-off-by: Arnaldo Carvalho de Melo <acme@mandriva.com>
2006-12-02[TIPC]: Use kzalloc where appropriateArnaldo Carvalho de Melo
Signed-off-by: Arnaldo Carvalho de Melo <acme@mandriva.com>
2006-12-02[SUNRPC]: Use k{mem,str}dup where applicableArnaldo Carvalho de Melo
Signed-off-by: Arnaldo Carvalho de Melo <acme@mandriva.com>
2006-12-02[SCTP]: Use kzalloc where appropriateArnaldo Carvalho de Melo
Signed-off-by: Arnaldo Carvalho de Melo <acme@mandriva.com>
2006-12-02[SCHED]: Use kmemdup & kzalloc where appropriateArnaldo Carvalho de Melo
Signed-off-by: Arnaldo Carvalho de Melo <acme@mandriva.com>
2006-12-02[IRDA]: Use kmemdup where applicableArnaldo Carvalho de Melo
Signed-off-by: Arnaldo Carvalho de Melo <acme@mandriva.com>
2006-12-02[IPVS]: Use kmemdup where appropriateArnaldo Carvalho de Melo
Signed-off-by: Arnaldo Carvalho de Melo <acme@mandriva.com>
2006-12-02[DECNET]: Use kzalloc where applicableArnaldo Carvalho de Melo
Signed-off-by: Arnaldo Carvalho de Melo <acme@mandriva.com>
2006-12-02[NET] neighbour: Use kmemdup where applicableArnaldo Carvalho de Melo
Signed-off-by: Arnaldo Carvalho de Melo <acme@mandriva.com>
2006-12-02[ATM]: Use kmemdup & kzalloc where applicableArnaldo Carvalho de Melo
Signed-off-by: Arnaldo Carvalho de Melo <acme@mandriva.com>
2006-12-02[CIPSO]: Missing annotation in cipso_ipv4 update.Al Viro
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk> Signed-off-by: David S. Miller <davem@davemloft.net>
2006-12-02[NETPOLL]: Another udp checksum mangling.Al Viro
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk> Signed-off-by: David S. Miller <davem@davemloft.net>
2006-12-02[NET]: net/sched annotations.Al Viro
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk> Signed-off-by: David S. Miller <davem@davemloft.net>
2006-12-02[NET]: Split skb->csumAl Viro
... into anonymous union of __wsum and __u32 (csum and csum_offset resp.) Signed-off-by: Al Viro <viro@zeniv.linux.org.uk> Signed-off-by: David S. Miller <davem@davemloft.net>
2006-12-02[NETFILTER]: ip_nat_snmp_basic annotations.Al Viro
... and switch the damn checksum update to something saner Signed-off-by: Al Viro <viro@zeniv.linux.org.uk> Signed-off-by: David S. Miller <davem@davemloft.net>
2006-12-02[NET]: Fix assorted misannotations (from md5 and udplite merges).Al Viro
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk> Signed-off-by: David S. Miller <davem@davemloft.net>
2006-12-02[SCTP]: Even more trivial sctp annotations.Al Viro
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk> Signed-off-by: David S. Miller <davem@davemloft.net>
2006-12-02[SCTP]: SCTP_CMD_PROCESS_CTSN annotations.Al Viro
argument passed as __be32 Signed-off-by: Al Viro <viro@zeniv.linux.org.uk> Signed-off-by: David S. Miller <davem@davemloft.net>
2006-12-02[SCTP]: More trivial sctp annotations.Al Viro
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk> Signed-off-by: David S. Miller <davem@davemloft.net>
2006-12-02[SCTP]: Netfilter sctp annotations.Al Viro
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk> Signed-off-by: David S. Miller <davem@davemloft.net>
2006-12-02[SCTP]: Annotate ->supported_addrs().Al Viro
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk> Signed-off-by: David S. Miller <davem@davemloft.net>
2006-12-02[SCTP]: sctp_association ->peer.i is a host-endian analog of sctp_inthdr.Al Viro
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk> Signed-off-by: David S. Miller <davem@davemloft.net>
2006-12-02[SCTP]: Get rid of the last remnants of sin_port flipping.Al Viro
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk> Signed-off-by: David S. Miller <davem@davemloft.net>
2006-12-02[SCTP]: Annotate ->inaddr_any().Al Viro
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk> Signed-off-by: David S. Miller <davem@davemloft.net>
2006-12-02[SCTP]: flip_to_{h,n}() are not needed anymore.Al Viro
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk> Signed-off-by: David S. Miller <davem@davemloft.net>
2006-12-02[SCTP]: Don't bother setting sin_port in ->from_sk().Al Viro
... the only caller will overwrite immediately Signed-off-by: Al Viro <viro@zeniv.linux.org.uk> Signed-off-by: David S. Miller <davem@davemloft.net>
2006-12-02[SCTP]: ->a_h is gone now.Al Viro
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk> Signed-off-by: David S. Miller <davem@davemloft.net>
2006-12-02[SCTP]: ip6_send() doesn't need fl_ip_[sd]port.Al Viro
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk> Signed-off-by: David S. Miller <davem@davemloft.net>
2006-12-02[SCTP]: sctp_sf_send_restart_abort() is endian-agnostic.Al Viro
... so caller can use ->ipaddr instead of ->ipaddr_h Signed-off-by: Al Viro <viro@zeniv.linux.org.uk> Signed-off-by: David S. Miller <davem@davemloft.net>
2006-12-02[SCTP]: We need to be careful when copying to sockaddr_storage.Al Viro
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk> Signed-off-by: David S. Miller <davem@davemloft.net>
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