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| * [NETFILTER]: nf_conntrack: sysctl compatibility with old connection trackingPatrick McHardy2006-12-029-0/+327
| | | | | | | | | | | | | | This patch adds an option to keep the connection tracking sysctls visible under their old names. Signed-off-by: Patrick McHardy <kaber@trash.net>
| * [NETFILTER]: nf_conntrack: move conntrack protocol sysctls to individual modulesPatrick McHardy2006-12-0211-327/+293
| | | | | | | | Signed-off-by: Patrick McHardy <kaber@trash.net>
| * [NETFILTER]: nf_conntrack: automatic sysctl registation for conntrack protocolsPatrick McHardy2006-12-023-0/+237
| | | | | | | | | | | | | | | | Add helper functions for sysctl registration with optional instantiating of common path elements (like net/netfilter) and use it for support for automatic registation of conntrack protocol sysctls. Signed-off-by: Patrick McHardy <kaber@trash.net>
| * [NETFILTER]: nf_conntrack: move extern declaration to header filesPatrick McHardy2006-12-026-37/+0
| | | | | | | | | | | | | | Using extern in a C file is a bad idea because the compiler can't catch type errors. Signed-off-by: Patrick McHardy <kaber@trash.net>
| * [NETFILTER]: nf_conntrack_ftp: fix missing helper mask initilizationPatrick McHardy2006-12-021-0/+1
| | | | | | | | Signed-off-by: Patrick McHardy <kaber@trash.net>
| * [NETFILTER]: nf_conntrack: reduce timer updates in __nf_ct_refresh_acct()Martin Josefsson2006-12-021-3/+8
| | | | | | | | | | | | | | | | | | | | | | | | Only update the conntrack timer if there's been at least HZ jiffies since the last update. Reduces the number of del_timer/add_timer cycles from one per packet to one per connection per second (plus once for each state change of a connection) Should handle timer wraparounds and connection timeout changes. Signed-off-by: Martin Josefsson <gandalf@wlug.westbo.se> Signed-off-by: Patrick McHardy <kaber@trash.net>
| * [NETFILTER]: nf_conntrack: remove unused struct list_head from protocolsMartin Josefsson2006-12-021-1/+0
| | | | | | | | | | | | | | | | | | Remove unused struct list_head from struct nf_conntrack_l3proto and nf_conntrack_l4proto as all protocols are kept in arrays, not linked lists. Signed-off-by: Martin Josefsson <gandalf@wlug.westbo.se> Signed-off-by: Patrick McHardy <kaber@trash.net>
| * [NETFILTER]: nf_conntrack: minor __nf_ct_refresh_acct() whitespace cleanupMartin Josefsson2006-12-021-3/+4
| | | | | | | | | | | | | | Minor whitespace cleanup. Signed-off-by: Martin Josefsson <gandalf@wlug.westbo.se> Signed-off-by: Patrick McHardy <kaber@trash.net>
| * [NETFILTER]: nf_conntrack: remove ASSERT_{READ,WRITE}_LOCKMartin Josefsson2006-12-022-11/+0
| | | | | | | | | | | | | | | | Remove the usage of ASSERT_READ_LOCK/ASSERT_WRITE_LOCK in nf_conntrack, it didn't do anything, it was just an empty define and it uglified the code. Signed-off-by: Martin Josefsson <gandalf@wlug.westbo.se> Signed-off-by: Patrick McHardy <kaber@trash.net>
| * [NETFILTER]: nf_conntrack: more sanity checks in protocol ↵Martin Josefsson2006-12-022-7/+50
| | | | | | | | | | | | | | | | | | registration/unregistration Add some more sanity checks when registering/unregistering l3/l4 protocols. Signed-off-by: Martin Josefsson <gandalf@wlug.westbo.se> Signed-off-by: Patrick McHardy <kaber@trash.net>
| * [NETFILTER]: nf_conntrack: rename struct nf_conntrack_protocolMartin Josefsson2006-12-0216-175/+175
| | | | | | | | | | | | | | | | | | Rename 'struct nf_conntrack_protocol' to 'struct nf_conntrack_l4proto' in order to help distinguish it from 'struct nf_conntrack_l3proto'. It gets rather confusing with 'nf_conntrack_protocol'. Signed-off-by: Martin Josefsson <gandalf@wlug.westbo.se> Signed-off-by: Patrick McHardy <kaber@trash.net>
| * [NETFILTER]: More __read_mostly annotationsMartin Josefsson2006-12-023-5/+5
| | | | | | | | | | | | | | | | Place rarely written variables in the read-mostly section by using __read_mostly Signed-off-by: Martin Josefsson <gandalf@wlug.westbo.se> Signed-off-by: Patrick McHardy <kaber@trash.net>
| * [NETFILTER]: nf_conntrack: split out protocol handlingMartin Josefsson2006-12-024-198/+226
| | | | | | | | | | | | | | | | This patch splits out L3/L4 protocol handling into its own file nf_conntrack_proto.c Signed-off-by: Martin Josefsson <gandalf@wlug.westbo.se> Signed-off-by: Patrick McHardy <kaber@trash.net>
| * [NETFILTER]: nf_conntrack: split out the event cacheMartin Josefsson2006-12-029-69/+103
| | | | | | | | | | | | | | | | This patch splits out the event cache into its own file nf_conntrack_ecache.c Signed-off-by: Martin Josefsson <gandalf@wlug.westbo.se> Signed-off-by: Patrick McHardy <kaber@trash.net>
| * [NETFILTER]: nf_conntrack: split out helper handlingMartin Josefsson2006-12-023-120/+153
| | | | | | | | | | | | | | | | This patch splits out handling of helpers into its own file nf_conntrack_helper.c Signed-off-by: Martin Josefsson <gandalf@wlug.westbo.se> Signed-off-by: Patrick McHardy <kaber@trash.net>
| * [NETFILTER]: nf_conntrack: split out expectation handlingMartin Josefsson2006-12-026-343/+372
| | | | | | | | | | | | | | | | This patch splits out expectation handling into its own file nf_conntrack_expect.c Signed-off-by: Martin Josefsson <gandalf@wlug.westbo.se> Signed-off-by: Patrick McHardy <kaber@trash.net>
| * [TCP] Vegas: Increase default alpha to 2 and beta to 4.David S. Miller2006-12-021-2/+2
| | | | | | | | | | | | | | | | | | This helps Vegas cope better with delayed ACKs, see analysis at: http://www.cs.caltech.edu/%7Eweixl/technical/ns2linux/known_linux/index.html#vegas Signed-off-by: David S. Miller <davem@davemloft.net>
| * [DCCP]: Use `unsigned' for packet lengthsGerrit Renker2006-12-024-58/+48
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This patch implements a suggestion by Ian McDonald and 1) Avoids tests against negative packet lengths by using unsigned int for packet payload lengths in the CCID send_packet()/packet_sent() routines 2) As a consequence, it removes an now unnecessary test with regard to `len > 0' in ccid3_hc_tx_packet_sent: that condition is always true, since * negative packet lengths are avoided * ccid3_hc_tx_send_packet flags an error whenever the payload length is 0. As a consequence, ccid3_hc_tx_packet_sent is never called as all errors returned by ccid_hc_tx_send_packet are caught in dccp_write_xmit 3) Removes the third argument of ccid_hc_tx_send_packet (the `len' parameter), since it is currently always set to skb->len. The code is updated with regard to this parameter change. 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>
| * [DCCP] ccid3: Larger initial windowsGerrit Renker2006-12-022-33/+37
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This implements the larger-initial-windows feature for CCID 3, as described in section 5 of RFC 4342. When the first feedback packet arrives, the sender can send up to 2..4 packets per RTT, instead of just one. The patch further * reduces the number of timestamping calls by passing the timestamp value (which is computed in one of the calling functions anyway) as argument * renames one constant with a very long name into one which is shorter and resembles the one in RFC 3448 (t_mbi) * simplifies some of the min_t/max_t cases where both `x', `y' have the same type Commiter note: renamed TFRC_t_mbi to TFRC_T_MBI, to follow Linux coding style. 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>
| * [DCCP]: Make {set,get}sockopt(DCCP_SOCKOPT_PACKET_SIZE) return 0Arnaldo Carvalho de Melo2006-12-021-2/+2
| | | | | | | | | | | | | | To reflect the fact that this now is of no effect, not making apps stop working, just be warned in the system log. Signed-off-by: Arnaldo Carvalho de Melo <acme@mandriva.com>
| * [DCCP]: Tidy up unused structuresGerrit Renker2006-12-022-8/+4
| | | | | | | | | | | | | | | | | | | | | | | | | | This removes and cleans up unused variables and structures which have become unnecessary following the introduction of the EWMA patch to automatically track the CCID 3 receiver/sender packet sizes `s'. It deprecates the PACKET_SIZE socket option by returning an error code and printing a deprecation warning if an application tries to read or write this socket option. Signed-off-by: Gerrit Renker <gerrit@erg.abdn.ac.uk> Signed-off-by: Arnaldo Carvalho de Melo <acme@mandriva.com>
| * [DCCP] ccid3: Track RX/TX packet size `s' using moving-averageGerrit Renker2006-12-021-19/+41
| | | | | | | | Problem:
| * [DCCP] ccid3: Set NoFeedback Timeout according to RFC 3448Gerrit Renker2006-12-021-12/+10
| | | | | | | | | | | | | | | | | | | | | | This corrects the setting of the nofeedback timer with regard to RFC 3448 - previously it was not set to max(4*R, 2*s/X) as specified. Using the maximum of 1 second as upper bound (as it was done before) can have detrimental effects, especially if R is small. Signed-off-by: Ian McDonald <ian.mcdonald@jandi.co.nz> Signed-off-by: Gerrit Renker <gerrit@erg.abdn.ac.uk> Signed-off-by: Arnaldo Carvalho de Melo <acme@mandriva.com>
| * [DCCP]: Remove allocation of sysctl numbersGerrit Renker2006-12-021-10/+0
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This is in response to a request sent earlier by Eric W. Biederman and replaces all sysctl numbers for net.dccp.default with CTL_UNNUMBERED. It has been tested to compile and to work. Commiter note: I've removed the use of CTL_UNNUMBERED, not setting .ctl_name sets it to 0, that is the what CTL_UNNUMBERED is, reason is to avoid unneeded source code cluttering. 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>
| * [DCCP] ccid3: Consolidate handling of t_RTOGerrit Renker2006-12-021-15/+14
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This patch * removes setting t_RTO in ccid3_hc_tx_init (per [RFC 3448, 4.2], t_RTO is undefined until feedback has been received); * makes some trivial changes (updates of comments); * performs a small optimisation by exploiting that the feedback timeout uses the value of t_ipi. The way it is done is safe, because the timeouts appear after the changes to t_ipi, ensuring that up-to-date values are used; * in ccid3_hc_tx_packet_recv, moves the t_rto statement closer to the calculation of the next_tmout. This makes the code clearer to read and is also safe, since t_rto is not updated until the next call of ccid3_hc_tx_packet_recv, and is not read by the functions called via ccid_wait_for_ccid(); * removes a `max' statement in sk_reset_timer, this is not needed since the timeout value is always greater than 1E6 microseconds. * adds `XXX'es to highlight that currently the nofeedback timer is set in a non-standard way 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>
| * [DCCP] ccid3: Consistently update t_nom, t_ipi, t_deltaGerrit Renker2006-12-021-21/+17
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This patch: * consolidates updating of parameters (t_nom, t_ipi, t_delta) which need to be updated at the same time, since they are inter-dependent * removes two inline functions which are no longer needed as a result of the above consolidation * resolves a FIXME regarding the re-calculation of t_ipi within the nofeedback timer, in the state where no feedback has previously been received * ties updating these parameters to updating the sending rate X, exploiting that all three parameters in turn depend on X; and using a small optimisation which can reduce the number of required instructions: only update the three parameters when X really changes 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>
| * [DCCP] ccid3: Consolidate timer resetsGerrit Renker2006-12-022-10/+10
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This patch concerns updating the value of the nofeedback timer when no feedback has been received so far. Since in this case the value of R is still undefined according to [RFC 3448, 4.2], we can not perform step (3) of [RFC 3448, 4.3]. A clarification is provided in [RFC 4342, sec. 5], which states that in these cases the nofeedback timer (still) expires "after two seconds". Many thanks to Ian McDonald for pointing this out and providing the clarification. The patch * implements [RFC 4342, sec. 5] with regard to the above case * consolidates handling timer restart by - adding an appropriate jump label and - initialising the timeout value Acked-by: Ian McDonald <ian.mcdonald@jandi.co.nz> Signed-off-by: Gerrit Renker <gerrit@erg.abdn.ac.uk> Signed-off-by: Arnaldo Carvalho de Melo <acme@mandriva.com>
| * [XFRM]: Convert a few __u8 to proper u8Jamal Hadi Salim2006-12-021-8/+8
| | | | | | | | | | | | | | Caught by the EyeBalls(tm) of Thomas Graf Signed-off-by: Jamal Hadi Salim <hadi@cyberus.ca> Signed-off-by: David S. Miller <davem@davemloft.net>
| * [XFRM]: Make flush notifier prettier when subpolicy usedJamal Hadi Salim2006-12-021-10/+2
| | | | | | | | | | | | | | Might as well make flush notifier prettier when subpolicy used Signed-off-by: Jamal Hadi Salim <hadi@cyberus.ca> Signed-off-by: David S. Miller <davem@davemloft.net>
| * [UDP(-Lite)]: consolidate v4 and v6 get|setsockopt codeGerrit Renker2006-12-022-121/+27
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This patch consolidates set/getsockopt code between UDP(-Lite) v4 and 6. The justification is that UDP(-Lite) is a transport-layer protocol and therefore the socket option code (at least in theory) should be AF-independent. Furthermore, there is the following code reduplication: * do_udp{,v6}_getsockopt is 100% identical between v4 and v6 * do_udp{,v6}_setsockopt is identical up to the following differerence --v4 in contrast to v4 additionally allows the experimental encapsulation types UDP_ENCAP_ESPINUDP and UDP_ENCAP_ESPINUDP_NON_IKE --the remainder is identical between v4 and v6 I believe that this difference is of little relevance. The advantages in not duplicating twice almost completely identical code. The patch further simplifies the interface of udp{,v6}_push_pending_frames, since for the second argument (struct udp_sock *up) it always holds that up = udp_sk(sk); where sk is the first function argument. Signed-off-by: Gerrit Renker <gerrit@erg.abdn.ac.uk> Signed-off-by: David S. Miller <davem@davemloft.net>
| * [RTNETLINK]: Add rtnl_put_cacheinfo() to unify some codeThomas Graf2006-12-024-39/+42
| | | | | | | | | | | | | | | | IPv4, IPv6, and DECNet all use struct rta_cacheinfo in a similiar way, therefore rtnl_put_cacheinfo() is added to reuse code. Signed-off-by: Thomas Graf <tgraf@suug.ch> Signed-off-by: David S. Miller <davem@davemloft.net>
| * [NETLINK]: Remove unused dst_pid field in netlink_skb_parmsThomas Graf2006-12-026-12/+2
| | | | | | | | | | | | | | | | The destination PID is passed directly to netlink_unicast() respectively netlink_multicast(). Signed-off-by: Thomas Graf <tgraf@suug.ch> Signed-off-by: David S. Miller <davem@davemloft.net>
| * [DCCP] ccid3: Resolve small FIXMEGerrit Renker2006-12-021-5/+4
| | | | | | | | | | | | | | | | | | | | | | | | 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>
| * [DCCP] ccid3: Remove redundant statements in ccid3_hc_tx_packet_sentGerrit Renker2006-12-021-21/+0
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | 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>
| * [DCCP] ccid3: Avoid congestion control on zero-sized data packetsGerrit Renker2006-12-021-9/+5
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | 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>
| * [DCCP] ccid3: Simplify control flow of ccid3_hc_tx_send_packetGerrit Renker2006-12-021-22/+18
| | | | | | | | | | | | | | | | | | 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>
| * [DCCP] ccid3: Fix calculation of t_ipi time of scheduled transmissionGerrit Renker2006-12-021-5/+13
| | | | | | | | Problem:
| * [DCCP] ccid3: Simplify control flow in the calculation of t_ipiGerrit Renker2006-12-021-7/+3
| | | | | | | | | | | | | | | | | | | | | | 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:
| * [DCCP] ccid3: Fix bug in calculation of first t_nom and first t_ipiGerrit Renker2006-12-022-7/+6
| | | | | | | | Problem:
| * [DCCP] ccid2: Allow window to grow largerAndrea Bittau2006-12-021-1/+1
| | | | | | | | | | | | | | 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>
| * [DCCP] ackvec: Split long ack vectors across multiple optionsAndrea Bittau2006-12-021-14/+32
| | | | | | | | | | | | | | | | | | | | | | 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>
| * [DCCP] ackvec: infrastructure for sending more than one ackvec per packetAndrea Bittau2006-12-023-20/+24
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | 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>
| * [DCCP] ackvec: Remove unused dccpav_ack_ptr field from dccp_ackvecAndrea Bittau2006-12-022-3/+0
| | | | | | | | | | | | | | 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>
| * [DECNET] address: Convert to new netlink interfaceThomas Graf2006-12-021-57/+85
| | | | | | | | | | | | | | | | | | | | | | | | 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>
| * [DECNET] address: Rename rtmsg_ifa() to dn_ifaddr_notify()Thomas Graf2006-12-021-4/+4
| | | | | | | | | | | | | | 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>
| * [DECNET] address: Calculate accurate message size for netlink notificationsThomas Graf2006-12-021-7/+12
| | | | | | | | | | Signed-off-by: Thomas Graf <tgraf@suug.ch> Signed-off-by: David S. Miller <davem@davemloft.net>
| * [IPV6]: Improve IPv6 tunnel error reportingVille Nuorvala2006-12-021-6/+7
| | | | | | | | | | | | | | | | 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>
| * [IPV6]: Don't allocate memory for Tunnel Encapsulation Limit OptionVille Nuorvala2006-12-021-36/+22
| | | | | | | | | | Signed-off-by: Ville Nuorvala <vnuorval@tcs.hut.fi> Signed-off-by: David S. Miller <davem@davemloft.net>
| * [IPV6]: Allow link-local tunnel endpointsVille Nuorvala2006-12-021-2/+6
| | | | | | | | | | | | | | 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>
| * [IPV6]: Do mandatory IPv6 tunnel endpoint checks in realtimeVille Nuorvala2006-12-021-34/+62
| | | | | | | | | | | | | | | | | | | | 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>
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