)]}' { "log": [ { "commit": "6fdd34d43bff8be9bb925b49d87a0ee144d2ab07", "tree": "547cf602983db37d573d3d191ac11660f1698e8f", "parents": [ "4098dce5be537a157eed4a326efd464109825b8b" ], "author": { "name": "Gerrit Renker", "email": "gerrit@erg.abdn.ac.uk", "time": "Mon Dec 08 01:19:06 2008 -0800" }, "committer": { "name": "David S. Miller", "email": "davem@davemloft.net", "time": "Mon Dec 08 01:19:06 2008 -0800" }, "message": "dccp ccid-2: Phase out the use of boolean Ack Vector sysctl\n\nThis removes the use of the sysctl and the minisock variable for the Send Ack\nVector feature, as it now is handled fully dynamically via feature negotiation\n(i.e. when CCID-2 is enabled, Ack Vectors are automatically enabled as per\n RFC 4341, 4.).\n\nUsing a sysctl in parallel to this implementation would open the door to\ncrashes, since much of the code relies on tests of the boolean minisock /\nsysctl variable. Thus, this patch replaces all tests of type\n\n\tif (dccp_msk(sk)-\u003edccpms_send_ack_vector)\n\t\t/* ... */\nwith\n\tif (dp-\u003edccps_hc_rx_ackvec !\u003d NULL)\n\t\t/* ... */\n\nThe dccps_hc_rx_ackvec is allocated by the dccp_hdlr_ackvec() when feature\nnegotiation concluded that Ack Vectors are to be used on the half-connection.\nOtherwise, it is NULL (due to dccp_init_sock/dccp_create_openreq_child),\nso that the test is a valid one.\n\nThe activation handler for Ack Vectors is called as soon as the feature\nnegotiation has concluded at the\n * server when the Ack marking the transition RESPOND \u003d\u003e OPEN arrives;\n * client after it has sent its ACK, marking the transition REQUEST \u003d\u003e PARTOPEN.\n\nAdding the sequence number of the Response packet to the Ack Vector has been\nremoved, since\n (a) connection establishment implies that the Response has been received;\n (b) the CCIDs only look at packets received in the (PART)OPEN state, i.e.\n this entry will always be ignored;\n (c) it can not be used for anything useful - to detect loss for instance, only\n packets received after the loss can serve as pseudo-dupacks.\n\nThere was a FIXME to change the error code when dccp_ackvec_add() fails.\nI removed this after finding out that:\n * the check whether ackno \u003c ISN is already made earlier,\n * this Response is likely the 1st packet with an Ackno that the client gets,\n * so when dccp_ackvec_add() fails, the reason is likely not a packet error.\n\nSigned-off-by: Gerrit Renker \u003cgerrit@erg.abdn.ac.uk\u003e\nAcked-by: Ian McDonald \u003cian.mcdonald@jandi.co.nz\u003e\nSigned-off-by: David S. Miller \u003cdavem@davemloft.net\u003e\n" }, { "commit": "4098dce5be537a157eed4a326efd464109825b8b", "tree": "f7116e98853d805eb874c4f2345c3cce2acbfaa7", "parents": [ "0049bab5e765aa74cf767a834fa336e19453fc5e" ], "author": { "name": "Gerrit Renker", "email": "gerrit@erg.abdn.ac.uk", "time": "Mon Dec 08 01:18:37 2008 -0800" }, "committer": { "name": "David S. Miller", "email": "davem@davemloft.net", "time": "Mon Dec 08 01:18:37 2008 -0800" }, "message": "dccp: Remove manual influence on NDP Count feature\n\nUpdating the NDP count feature is handled automatically now:\n * for CCID-2 it is disabled, since the code does not use NDP counts;\n * for CCID-3 it is enabled, as NDP counts are used to determine loss lengths.\n\nAllowing the user to change NDP values leads to unpredictable and failing\nbehaviour, since it is then possible to disable NDP counts even when they\nare needed (e.g. in CCID-3).\n\nThis means that only those user settings are sensible that agree with the\nvalues for Send NDP Count implied by the choice of CCID. But those settings\nare already activated by the feature negotiation (CCID dependency tracking),\nhence this form of support is redundant.\n\nAt startup the initialisation of the NDP count feature uses the default\nvalue of 0, which is done implicitly by the zeroing-out of the socket when\nit is allocated. If the choice of CCID or feature negotiation enables NDP\ncount, this will then be updated via the NDP activation handler.\n\nSigned-off-by: Gerrit Renker \u003cgerrit@erg.abdn.ac.uk\u003e\nAcked-by: Ian McDonald \u003cian.mcdonald@jandi.co.nz\u003e\nSigned-off-by: David S. Miller \u003cdavem@davemloft.net\u003e\n" }, { "commit": "dd9c0e363cef32b7d6f23d4c87e8dfe4f91fd1c5", "tree": "2ae48a033a925169f0fd71bdc18a683a308f46c4", "parents": [ "29450559849da7066813601effb7666966869853" ], "author": { "name": "Gerrit Renker", "email": "gerrit@erg.abdn.ac.uk", "time": "Sun Nov 16 22:55:08 2008 -0800" }, "committer": { "name": "David S. Miller", "email": "davem@davemloft.net", "time": "Sun Nov 16 22:55:08 2008 -0800" }, "message": "dccp: Deprecate Ack Ratio sysctl\n\nThis patch deprecates the Ack Ratio sysctl, since\n * Ack Ratio is entirely ignored by CCID-3 and CCID-4,\n * Ack Ratio currently doesn\u0027t work in CCID-2 (i.e. is always set to 1);\n * even if it would work in CCID-2, there is no point for a user to change it:\n - Ack Ratio is constrained by cwnd (RFC 4341, 6.1.2),\n - if Ack Ratio \u003e cwnd, the system resorts to spurious RTO timeouts\n (since waiting for Acks which will never arrive in this window),\n - cwnd is not a user-configurable value.\n\nThe only reasonable place for Ack Ratio is to print it for debugging. It is\nplanned to do this later on, as part of e.g. dccp_probe.\n\nWith this patch Ack Ratio is now under full control of feature negotiation:\n * Ack Ratio is resolved as a dependency of the selected CCID;\n * if the chosen CCID supports it (i.e. CCID \u003d\u003d CCID-2), Ack Ratio is set to\n the default of 2, following RFC 4340, 11.3 - \"New connections start with Ack\n Ratio 2 for both endpoints\";\n * what happens then is part of another patch set, since it concerns the\n dynamic update of Ack Ratio while the connection is in full flight.\n\nThanks to Tomasz Grobelny for discussion leading up to this patch.\n\nSigned-off-by: Gerrit Renker \u003cgerrit@erg.abdn.ac.uk\u003e\nAcked-by: Arnaldo Carvalho de Melo \u003cacme@redhat.com\u003e\nSigned-off-by: David S. Miller \u003cdavem@davemloft.net\u003e\n" }, { "commit": "b5ccd792fa413f9336273cb8fa3b9dd3a7ec1735", "tree": "64b23972fdf667baa74a0895bf403b22eb7de86c", "parents": [ "cb7928a528264a69b29b6001b490b64607ed0557" ], "author": { "name": "Pavel Emelyanov", "email": "xemul@openvz.org", "time": "Wed Jan 09 00:30:05 2008 -0800" }, "committer": { "name": "David S. Miller", "email": "davem@davemloft.net", "time": "Mon Jan 28 15:01:07 2008 -0800" }, "message": "[NET]: Simple ctl_table to ctl_path conversions.\n\nThis patch includes many places, that only required\nreplacing the ctl_table-s with appropriate ctl_paths\nand call register_sysctl_paths().\n\nNothing special was done with them.\n\nSigned-off-by: Pavel Emelyanov \u003cxemul@openvz.org\u003e\nSigned-off-by: David S. Miller \u003cdavem@davemloft.net\u003e\n" }, { "commit": "bd5435e76a226b7151ae5aaee2cd366ab003dd2e", "tree": "54d0d4f05d9fe182abbac3f0d60628835df48a93", "parents": [ "dc8a82ad285dcd2831feb2fd8f7b41ce1f82e243" ], "author": { "name": "Ingo Molnar", "email": "mingo@elte.hu", "time": "Wed Oct 17 19:33:06 2007 -0700" }, "committer": { "name": "David S. Miller", "email": "davem@davemloft.net", "time": "Wed Oct 17 19:33:06 2007 -0700" }, "message": "[DCCP]: fix link error with !CONFIG_SYSCTL\n\nDo not define the sysctl_dccp_sync_ratelimit sysctl variable in the\nCONFIG_SYSCTL dependent sysctl.c module - move it to input.c instead.\n\nThis fixes the following build bug:\n\n net/built-in.o: In function `dccp_check_seqno\u0027:\n input.c:(.text+0xbd859): undefined reference to `sysctl_dccp_sync_ratelimit\u0027\n distcc[29953] ERROR: compile (null) on localhost failed\n make: *** [vmlinux] Error 1\n\nFound via \u0027make randconfig\u0027 build testing.\n\nSigned-off-by: Ingo Molnar \u003cmingo@elte.hu\u003e\nAcked-by: Ian McDonald \u003cian.mcdonald@jandi.co.nz\u003e\nSigned-off-by: Arnaldo Carvalho de Melo \u003cacme@redhat.com\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: David S. Miller \u003cdavem@davemloft.net\u003e\n" }, { "commit": "a94f0f970549e63e54c80c4509db299c514d8c11", "tree": "3b9421fc70e00c16ed57ef4330b24504b04ae309", "parents": [ "ee1a15922d356aff0e31bf9bb9088ab346b8033a" ], "author": { "name": "Gerrit Renker", "email": "gerrit@erg.abdn.ac.uk", "time": "Wed Sep 26 11:31:49 2007 -0300" }, "committer": { "name": "David S. Miller", "email": "davem@sunset.davemloft.net", "time": "Wed Oct 10 16:52:43 2007 -0700" }, "message": "[DCCP]: Rate-limit DCCP-Syncs\n\nThis implements a SHOULD from RFC 4340, 7.5.4:\n \"To protect against denial-of-service attacks, DCCP implementations SHOULD\n impose a rate limit on DCCP-Syncs sent in response to sequence-invalid packets,\n such as not more than eight DCCP-Syncs per second.\"\n\nThe rate-limit is maintained on a per-socket basis. This is a more stringent\npolicy than enforcing the rate-limit on a per-source-address basis and\nprotects against attacks with forged source addresses.\n\nMoreover, the mechanism is deliberately kept simple. In contrast to\nxrlim_allow(), bursts of Sync packets in reply to sequence-invalid packets\nare not supported. This foils such attacks where the receipt of a Sync\ntriggers further sequence-invalid packets. (I have tested this mechanism against\nxrlim_allow algorithm for Syncs, permitting bursts just increases the problems.)\n\nIn order to keep flexibility, the timeout parameter can be set via sysctl; and\nthe whole mechanism can even be disabled (which is however not recommended).\n\nThe algorithm in this patch has been improved with regard to wrapping issues\nthanks to a suggestion by Arnaldo.\n\nCommiter note: Rate limited the step 6 DCCP_WARN too, as it says we\u0027re\n sending a sync.\n\nSigned-off-by: Gerrit Renker \u003cgerrit@erg.abdn.ac.uk\u003e\nSigned-off-by: Ian McDonald \u003cian.mcdonald@jandi.co.nz\u003e\nSigned-off-by: Arnaldo Carvalho de Melo \u003cacme@ghostprotocols.net\u003e\n" }, { "commit": "0b4d414714f0d2f922d39424b0c5c82ad900a381", "tree": "5079ec59a5622c9cacfe0fce484ba2c4626c406f", "parents": [ "ae836810263509ff7a3c2c021754ce6f66b3fab6" ], "author": { "name": "Eric W. Biederman", "email": "ebiederm@xmission.com", "time": "Wed Feb 14 00:34:09 2007 -0800" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@woody.linux-foundation.org", "time": "Wed Feb 14 08:09:59 2007 -0800" }, "message": "[PATCH] sysctl: remove insert_at_head from register_sysctl\n\nThe semantic effect of insert_at_head is that it would allow new registered\nsysctl entries to override existing sysctl entries of the same name. Which is\npain for caching and the proc interface never implemented.\n\nI have done an audit and discovered that none of the current users of\nregister_sysctl care as (excpet for directories) they do not register\nduplicate sysctl entries.\n\nSo this patch simply removes the support for overriding existing entries in\nthe sys_sysctl interface since no one uses it or cares and it makes future\nenhancments harder.\n\nSigned-off-by: Eric W. Biederman \u003cebiederm@xmission.com\u003e\nAcked-by: Ralf Baechle \u003cralf@linux-mips.org\u003e\nAcked-by: Martin Schwidefsky \u003cschwidefsky@de.ibm.com\u003e\nCc: Russell King \u003crmk@arm.linux.org.uk\u003e\nCc: David Howells \u003cdhowells@redhat.com\u003e\nCc: \"Luck, Tony\" \u003ctony.luck@intel.com\u003e\nCc: Ralf Baechle \u003cralf@linux-mips.org\u003e\nCc: Paul Mackerras \u003cpaulus@samba.org\u003e\nCc: Martin Schwidefsky \u003cschwidefsky@de.ibm.com\u003e\nCc: Andi Kleen \u003cak@muc.de\u003e\nCc: Jens Axboe \u003caxboe@kernel.dk\u003e\nCc: Corey Minyard \u003cminyard@acm.org\u003e\nCc: Neil Brown \u003cneilb@suse.de\u003e\nCc: \"John W. Linville\" \u003clinville@tuxdriver.com\u003e\nCc: James Bottomley \u003cJames.Bottomley@steeleye.com\u003e\nCc: Jan Kara \u003cjack@ucw.cz\u003e\nCc: Trond Myklebust \u003ctrond.myklebust@fys.uio.no\u003e\nCc: Mark Fasheh \u003cmark.fasheh@oracle.com\u003e\nCc: David Chinner \u003cdgc@sgi.com\u003e\nCc: \"David S. Miller\" \u003cdavem@davemloft.net\u003e\nCc: Patrick McHardy \u003ckaber@trash.net\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "f7d749fa0a4de0a5445a4f023023f9e702238653", "tree": "f9abe6b87300186a26c7df787ba77b9b1cb61c1d", "parents": [ "d87abf42762ee3e77b118ea96517cf8c7d33abc1" ], "author": { "name": "Eric W. Biederman", "email": "ebiederm@xmission.com", "time": "Wed Feb 14 00:33:29 2007 -0800" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@woody.linux-foundation.org", "time": "Wed Feb 14 08:09:55 2007 -0800" }, "message": "[PATCH] sysctl: dccp: remove unnecessary insert_at_head flag\n\nSigned-off-by: Eric W. Biederman \u003cebiederm@xmission.com\u003e\nCc: Arnaldo Carvalho de Melo \u003cacme@conectiva.com.br\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "4384260443efe90a2ec0d907568dbc58ae792cd0", "tree": "a1eb5eb3eab2a2753af3dec4de97a7a4fc49cd97", "parents": [ "ee41e2dff1a0ac548f12871f4bb23fe9e69e13eb" ], "author": { "name": "Gerrit Renker", "email": "gerrit@erg.abdn.ac.uk", "time": "Tue Nov 28 18:14:10 2006 -0200" }, "committer": { "name": "David S. Miller", "email": "davem@sunset.davemloft.net", "time": "Sat Dec 02 21:30:56 2006 -0800" }, "message": "[DCCP]: Remove allocation of sysctl numbers\n\nThis is in response to a request sent earlier by Eric W. Biederman\nand replaces all sysctl numbers for net.dccp.default with CTL_UNNUMBERED.\n\nIt has been tested to compile and to work.\n\nCommiter note: I\u0027ve removed the use of CTL_UNNUMBERED, not setting .ctl_name\n sets it to 0, that is the what CTL_UNNUMBERED is, reason is\n to avoid unneeded source code cluttering.\n\nSigned-off-by: Gerrit Renker \u003cgerrit@erg.abdn.ac.uk\u003e\nSigned-off-by: Ian McDonald \u003cian.mcdonald@jandi.co.nz\u003e\nSigned-off-by: Arnaldo Carvalho de Melo \u003cacme@mandriva.com\u003e\n" }, { "commit": "82e3ab9dbeebd5c8d5402ad1607d22086271a56d", "tree": "23f66bf5a801fc80024f19f502142a2e1927c992", "parents": [ "455431739ca2f4c7f02d0a5979559ac5a68a6f95" ], "author": { "name": "Ian McDonald", "email": "ian.mcdonald@jandi.co.nz", "time": "Mon Nov 20 19:19:32 2006 -0200" }, "committer": { "name": "David S. Miller", "email": "davem@sunset.davemloft.net", "time": "Sat Dec 02 21:24:42 2006 -0800" }, "message": "[DCCP]: Adds the tx buffer sysctls\n\nThis one got lost on the way from Ian to Gerrit to me, fix it.\n\nSigned-off-by: Ian McDonald \u003cian.mcdonald@jandi.co.nz\u003e\nSigned-off-by: Arnaldo Carvalho de Melo \u003cacme@mandriva.com\u003e\n" }, { "commit": "afb0a34dd3e20b3f534de19993271b8664cf10bb", "tree": "f7660923d8dfa7e75ea655b99a6b608d67dea327", "parents": [ "2e2e9e92bd723244ea20fa488b1780111f2b05e1" ], "author": { "name": "Gerrit Renker", "email": "gerrit@erg.abdn.ac.uk", "time": "Mon Nov 13 13:25:41 2006 -0200" }, "committer": { "name": "David S. Miller", "email": "davem@sunset.davemloft.net", "time": "Sat Dec 02 21:22:19 2006 -0800" }, "message": "[DCCP]: Introduce a consistent naming scheme for sysctls\n\nIn order to make their function clearer and obtain a consistent naming\nscheme to identify sysctls, all existing DCCP sysctls have been prefixed\nwith `sysctl_dccp\u0027, following the same convention as used by TCP.\n\nFeature-specific sysctls retain the `feat\u0027 in the middle, although the\n`default\u0027 has been dropped, since it is obvious from use.\n\nAlso removed a duplicate `dccp_feat_default_sequence_window\u0027 in ipv4.c.\n\nSigned-off-by: Gerrit Renker \u003cgerrit@erg.abdn.ac.uk\u003e\nSigned-off-by: Arnaldo Carvalho de Melo \u003cacme@mandriva.com\u003e\n" }, { "commit": "2e2e9e92bd723244ea20fa488b1780111f2b05e1", "tree": "2e859b2b0aa17d2e18927fe110cdefad6c4f5fe6", "parents": [ "e11d9d30802278af22e78d8c10f348b683670cd9" ], "author": { "name": "Gerrit Renker", "email": "gerrit@erg.abdn.ac.uk", "time": "Mon Nov 13 13:23:52 2006 -0200" }, "committer": { "name": "David S. Miller", "email": "davem@sunset.davemloft.net", "time": "Sat Dec 02 21:22:18 2006 -0800" }, "message": "[DCCP]: Add sysctls to control retransmission behaviour\n\nThis adds 3 sysctls which govern the retransmission behaviour of DCCP control\npackets (3way handshake, feature negotiation).\n\nIt removes 4 FIXMEs from the code.\n\nThe close resemblance of sysctl variables to their TCP analogues is emphasised\nnot only by their name, but also by giving them the same initial values.\nThis is useful since there is not much practical experience with DCCP yet.\n\nFurthermore, with regard to the previous patch, it is now possible to limit\nthe number of keepalive-Responses by setting net.dccp.default.request_retries\n(also a bit like in TCP).\n\nLastly, added documentation of all existing DCCP sysctls.\n\nSigned-off-by: Gerrit Renker \u003cgerrit@erg.abdn.ac.uk\u003e\nSigned-off-by: Arnaldo Carvalho de Melo \u003cacme@mandriva.com\u003e\n" }, { "commit": "2a0109a707d2b0ae48f124d3be0fdf1715c0107a", "tree": "52d6335e8e50c0573fd455730ae2b0d99d36bf82", "parents": [ "ef047f5e1085d6393748d1ee27d6327905f098dc" ], "author": { "name": "Ian McDonald", "email": "ian.mcdonald@jandi.co.nz", "time": "Sat Aug 26 19:15:35 2006 -0700" }, "committer": { "name": "David S. Miller", "email": "davem@sunset.davemloft.net", "time": "Fri Sep 22 15:18:16 2006 -0700" }, "message": "[DCCP]: Shift sysctls into feat.h\n\nThis shifts further sysctls into feat.h. No change in\nfunctionality - shifting code only.\n\nSigned off by: Ian McDonald \u003cian.mcdonald@jandi.co.nz\u003e\nSigned-off-by: David S. Miller \u003cdavem@davemloft.net\u003e\n" }, { "commit": "6ab3d5624e172c553004ecc862bfeac16d9d68b7", "tree": "6d98881fe91fd9583c109208d5c27131b93fa248", "parents": [ "e02169b682bc448ccdc819dc8639ed34a23cedd8" ], "author": { "name": "Jörn Engel", "email": "joern@wohnheim.fh-wedel.de", "time": "Fri Jun 30 19:25:36 2006 +0200" }, "committer": { "name": "Adrian Bunk", "email": "bunk@stusta.de", "time": "Fri Jun 30 19:25:36 2006 +0200" }, "message": "Remove obsolete #include \u003clinux/config.h\u003e\n\nSigned-off-by: Jörn Engel \u003cjoern@wohnheim.fh-wedel.de\u003e\nSigned-off-by: Adrian Bunk \u003cbunk@stusta.de\u003e\n" }, { "commit": "e55d912f5b75723159348a7fc7692f869a86636a", "tree": "c00be180cac20e4247ffda446ad266d885a1a811", "parents": [ "04e2661e9c00386412b64612549cf24c8baef67c" ], "author": { "name": "Arnaldo Carvalho de Melo", "email": "acme@mandriva.com", "time": "Mon Mar 20 19:25:02 2006 -0800" }, "committer": { "name": "David S. Miller", "email": "davem@davemloft.net", "time": "Mon Mar 20 19:25:02 2006 -0800" }, "message": "[DCCP] feat: Introduce sysctls for the default features\n\n[root@qemu ~]# for a in /proc/sys/net/dccp/default/* ; do echo $a ; cat $a ; done\n/proc/sys/net/dccp/default/ack_ratio\n2\n/proc/sys/net/dccp/default/rx_ccid\n3\n/proc/sys/net/dccp/default/send_ackvec\n1\n/proc/sys/net/dccp/default/send_ndp\n1\n/proc/sys/net/dccp/default/seq_window\n100\n/proc/sys/net/dccp/default/tx_ccid\n3\n[root@qemu ~]#\n\nSo if wanting to test ccid3 as the tx CCID one can just do:\n\n[root@qemu ~]# echo 3 \u003e /proc/sys/net/dccp/default/tx_ccid\n[root@qemu ~]# echo 2 \u003e /proc/sys/net/dccp/default/rx_ccid\n[root@qemu ~]# cat /proc/sys/net/dccp/default/[tr]x_ccid\n2\n3\n[root@qemu ~]#\n\nOf course we also need the setsockopt for each app to tell its preferences, but\nfor testing or defining something other than CCID2 as the default for apps that\ndon\u0027t explicitely set their preference the sysctl interface is handy.\n\nSigned-off-by: Arnaldo Carvalho de Melo \u003cacme@mandriva.com\u003e\nSigned-off-by: David S. Miller \u003cdavem@davemloft.net\u003e\n" } ] }