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* [NETFILTER]: ctnetlink: check for status attribute existence on conntrack ↵Pablo Neira Ayuso2006-12-022-6/+10
| | | | | | | | | | creation Check that status flags are available in the netlink message received to create a new conntrack. Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org> Signed-off-by: Patrick McHardy <kaber@trash.net>
* [NETFILTER]: sip conntrack: better NAT handlingPatrick McHardy2006-12-022-69/+131
| | | | | | | | | | | | | | | | | | | | | | | The NAT handling of the SIP helper has a few problems: - Request headers are only mangled in the reply direction, From/To headers not at all, which can lead to authentication failures with DNAT in case the authentication domain is the IP address - Contact headers in responses are only mangled for REGISTER responses - Headers may be mangled even though they contain addresses not participating in the connection, like alternative addresses - Packets are droppen when domain names are used where the helper expects IP addresses This patch takes a different approach, instead of fixed rules what field to mangle to what content, it adds symetric mapping of From/To/Via/Contact headers, which allows to deal properly with echoed addresses in responses and foreign addresses not belonging to the connection. Signed-off-by: Patrick McHardy <kaber@trash.net>
* [NETFILTER]: sip conntrack: make header shortcuts optionalPatrick McHardy2006-12-021-3/+2
| | | | | | | Not every header has a shortcut, so make them optional instead of searching for the same string twice. Signed-off-by: Patrick McHardy <kaber@trash.net>
* [NETFILTER]: sip conntrack: do case insensitive SIP header searchPatrick McHardy2006-12-022-7/+20
| | | | | | | SIP headers are generally case-insensitive, only SDP headers are case sensitive. Signed-off-by: Patrick McHardy <kaber@trash.net>
* [NETFILTER]: sip conntrack: minor cleanupPatrick McHardy2006-12-022-45/+45
| | | | | | | | | | - Use enum for header field enumeration - Use numerical value instead of pointer to header info structure to identify headers, unexport ct_sip_hdrs - group SIP and SDP entries in header info structure - remove double forward declaration of ct_sip_get_info Signed-off-by: Patrick McHardy <kaber@trash.net>
* [NETFILTER]: ip_conntrack: fix NAT helper unload racesPatrick McHardy2006-12-0215-169/+216
| | | | | | | | | | | | The NAT helpr hooks are protected by RCU, but all of the conntrack helpers test and use the global pointers instead of copying them first using rcu_dereference() Also replace synchronize_net() by synchronize_rcu() for clarity since sychronizing only with packet receive processing is insufficient to prevent races. Signed-off-by: Patrick McHardy <kaber@trash.net>
* [NETFILTER]: conntrack: add '_get' to {ip, nf}_conntrack_expect_findYasuyuki Kozakai2006-12-028-11/+11
| | | | | | | | We usually uses 'xxx_find_get' for function which increments reference count. Signed-off-by: Yasuyuki Kozakai <yasuyuki.kozakai@toshiba.co.jp> Signed-off-by: Patrick McHardy <kaber@trash.net>
* [NETFILTER]: nf_conntrack: /proc compatibility with old connection trackingPatrick McHardy2006-12-025-1/+431
| | | | | | | | | | This patch adds /proc/net/ip_conntrack, /proc/net/ip_conntrack_expect and /proc/net/stat/ip_conntrack files to keep old programs using them working. The /proc/net/ip_conntrack and /proc/net/ip_conntrack_expect files show only IPv4 entries, the /proc/net/stat/ip_conntrack shows global statistics. Signed-off-by: Patrick McHardy <kaber@trash.net>
* [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>
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