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freebsd-skq/sys/netgraph
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glebius fd07387e04 Quoting Alexander: 
Formulas described in RFC require high precision of floating point.
  Formulas of integer math implemented in ng_pptpgre give mistake in range
  of +0-7ms on RTT and +0-3ms on deviation. This leads to significant
  underestimation of real packet RTT.

  I have made a very simple patch to reduce mistake to +4-3ms on RTT and
  +2-1ms on deviation. Mistake in RTT is not good, but gets covered by
  deviation. To cover worst possible negative mistake in deviation I have
  added 2ms to it. Also this 2 ms cover the case when measured deviation
  is so small (about zero) that it can interfere with process scheduling
  delays or weather on Mars.

  My tests show decreasing of packet losses on 20ms RTT link from 2.5% to
  0.3% while speed increased un 1/3.

Reviewed by:	archie
2007-02-02 09:45:23 +00:00
..
atm Don't use data after free. 2006-09-30 12:37:43 +00:00
bluetooth Sweep kernel replacing suser(9) calls with priv(9) calls, assigning 2006-11-06 13:42:10 +00:00
netflow Recognize 802.1q frames in Ethernet input and process them. 2006-10-11 15:27:13 +00:00
netgraph.h - ng_address_ID() has already freed the message, don't do double free. 2006-10-17 10:59:39 +00:00
ng_async.c
ng_async.h
ng_atmllc.c
ng_atmllc.h
ng_base.c Do not leak hooks in ng_bypass(). 2006-10-11 14:33:08 +00:00
ng_bpf.c Fix build without BPF_JITTER option. 2005-12-07 21:41:45 +00:00
ng_bpf.h
ng_bridge.c
ng_bridge.h Use variable-sized arrays where appropriate. 2005-10-28 14:41:28 +00:00
ng_cisco.c NG_MKRESPONSE() macro includes sizeof struct ng_mesg when doing allocation. 2005-04-13 14:03:28 +00:00
ng_cisco.h
ng_deflate.c Whitespace cleanup. 2007-01-15 05:55:56 +00:00
ng_deflate.h A node that implements the Deflate sub-protocols of the Compression Control 2006-12-28 15:44:05 +00:00
ng_device.c Rename m_getm() to m_getm2() and rewrite it to allocate up to page sized 2006-11-02 17:37:22 +00:00
ng_device.h
ng_echo.c - Return error, if there was one. 2005-04-15 10:14:00 +00:00
ng_echo.h
ng_eiface.c SIOCSIFFLAGS doesn't require an argument in kernel land; instead, flags 2006-09-15 15:53:09 +00:00
ng_eiface.h
ng_etf.c Remove ng_connect_t where it is unused. Probably it remained from ng_source.c. 2005-03-14 20:49:48 +00:00
ng_etf.h
ng_ether.c Turn off by default "feature" that overwrites MAC address 2006-08-04 13:36:27 +00:00
ng_ether.h Add new netgraph control message NGM_ETHER_DETACH, which actually 2005-02-14 12:01:09 +00:00
ng_fec.c Fix input byte counting. Now the sum of the ipackets/ibytes counters 2006-09-15 20:17:45 +00:00
ng_fec.h
ng_frame_relay.c Initialize variable. 2006-01-14 21:49:31 +00:00
ng_frame_relay.h
ng_gif_demux.c
ng_gif_demux.h
ng_gif.c Stop embedding struct ifnet at the top of driver softcs. Instead the 2005-06-10 16:49:24 +00:00
ng_gif.h
ng_hole.c Fix memory leak. 2005-12-09 07:09:44 +00:00
ng_hole.h
ng_hub.c
ng_hub.h
ng_iface.c add missed calls to bpf_peers_present 2006-06-02 23:14:40 +00:00
ng_iface.h
ng_ip_input.c
ng_ip_input.h
ng_ipfw.c Unbreak this. 2006-02-14 15:22:24 +00:00
ng_ipfw.h Remove unused now field. 2006-02-17 09:42:49 +00:00
ng_ksocket.c soreceive_generic(), and sopoll_generic(). Add new functions sosend(), 2006-07-24 15:20:08 +00:00
ng_ksocket.h Use variable-sized arrays where appropriate. 2005-10-28 14:41:28 +00:00
ng_l2tp.c Use the ISO standard function variable vs. a GCC'ism. 2005-08-10 06:25:41 +00:00
ng_l2tp.h
ng_lmi.c Remove dead code. 2006-01-14 14:17:27 +00:00
ng_lmi.h
ng_message.h Make ng_ID_t fixed size, so that its maximum value is platform independent. 2006-10-17 11:01:20 +00:00
ng_mppc.c In preparation for making the modules actually use opt_*.h files 2005-10-14 23:17:45 +00:00
ng_mppc.h
ng_nat.c Return value PKT_ALIAS_FOUND_HEADER_FRAGMENT isn't an error case. The 2006-12-21 10:26:01 +00:00
ng_nat.h ng_nat - a netgraph(4) node, which does NAT 2005-05-05 23:41:21 +00:00
ng_one2many.c Fix getting stats from many links with index > 0. 2005-03-11 10:29:38 +00:00
ng_one2many.h
ng_parse.c Fix two accesses to uninitialized variables that a revision 1.27 2006-01-18 16:09:00 +00:00
ng_parse.h Use variable-sized arrays where appropriate. 2005-10-28 14:41:28 +00:00
ng_ppp.c - Create ng_ppp_bypass() function, that prepares a packet 2007-01-25 21:16:50 +00:00
ng_ppp.h Before this commit, if the compression is enabled the, ng_ppp(4) 2006-12-28 13:21:54 +00:00
ng_pppoe.c Some perfectionizm against last revision. 2006-08-10 11:07:11 +00:00
ng_pppoe.h Fix ng_pppoe(4) after turning off "autosrc feature" on ng_ether(4). 2006-08-09 09:56:58 +00:00
ng_pptpgre.c Quoting Alexander: 2007-02-02 09:45:23 +00:00
ng_pptpgre.h
ng_pred1.c Whitespace cleanup. 2007-01-15 05:55:56 +00:00
ng_pred1.h A node that implements Predictor-1 compression for PPP. 2006-12-29 09:54:32 +00:00
ng_rfc1490.c
ng_rfc1490.h
ng_sample.c
ng_sample.h
ng_socket.c Sweep kernel replacing suser(9) calls with priv(9) calls, assigning 2006-11-06 13:42:10 +00:00
ng_socket.h Make the sg_len and sg_family members of the sockaddr_ng the same type 2006-10-17 11:03:55 +00:00
ng_socketvar.h In the splnet times, netgraph was functional and synchronous. Nowadays, 2005-07-05 17:35:20 +00:00
ng_source.c Simplify ng_source_send() removing temporary queue and merging two 2006-01-23 10:28:04 +00:00
ng_source.h Implement an upper limit for packets per second sent by node. 2005-12-23 19:14:38 +00:00
ng_split.c Plug item leak in case when not all hooks are connected. 2005-08-29 13:47:08 +00:00
ng_split.h Make the cookie constant name canonical. 2005-10-25 20:56:12 +00:00
ng_sppp.c Various bpf(4) related fixes to catch places up to the new bpf(4) 2006-12-29 13:59:50 +00:00
ng_sppp.h
ng_tag.c A netgraph node that can do different manipulations with 2006-06-27 12:45:28 +00:00
ng_tag.h A netgraph node that can do different manipulations with 2006-06-27 12:45:28 +00:00
ng_tcpmss.c Update ip and tcp pointers after m_pullup(). 2007-01-15 05:01:31 +00:00
ng_tcpmss.h Add ng_tcpmss node, which alters MSS options of TCP packets. Useful to 2005-06-10 08:02:34 +00:00
ng_tee.c Update statistics only in case if delivery was successfull. 2005-06-07 12:22:13 +00:00
ng_tee.h
ng_tty.c Sweep kernel replacing suser(9) calls with priv(9) calls, assigning 2006-11-06 13:42:10 +00:00
ng_tty.h
ng_UI.c
ng_UI.h
ng_vjc.c Use __LP64__ to check for the 64-bit pointer type, and fix -Wundef. 2005-12-04 00:25:03 +00:00
ng_vjc.h
ng_vlan.c Move ethernet VLAN tags from mtags to its own mbuf packet header field 2006-09-17 13:33:30 +00:00
ng_vlan.h Use variable-sized arrays where appropriate. 2005-10-28 14:41:28 +00:00
NOTES