Matthew Dillon 701bec5a38 Introduce two new sysctl's: ... net.inet.tcp.rexmit_min (default 3 ticks equiv) This sysctl is the retransmit timer RTO minimum, specified in milliseconds. This value is designed for algorithmic stability only. net.inet.tcp.rexmit_slop (default 200ms) This sysctl is the retransmit timer RTO slop which is added to every retransmit timeout and is designed to handle protocol stack overheads and delayed ack issues. Note that the *original* code applied a 1-second RTO minimum but never applied real slop to the RTO calculation, so any RTO calculation over one second would have no slop and thus not account for protocol stack overheads (TCP timestamps are not a measure of protocol turnaround!). Essentially, the original code made the RTO calculation almost completely irrelevant. Please note that the 200ms slop is debateable. This commit is not meant to be a line in the sand, and if the community winds up deciding that increasing it is the correct solution then it's easy to do. Note that larger values will destroy performance on lossy networks while smaller values may result in a greater number of unnecessary retransmits.		2002-07-18 19:06:12 +00:00
..
libalias	Move IPFW2 definition before including ip_fw.h	2002-07-18 05:18:41 +00:00
accf_data.c	Remove so*_locked(), which were backed out by mistake.	2002-06-18 07:42:02 +00:00
accf_http.c	Remove so*_locked(), which were backed out by mistake.	2002-06-18 07:42:02 +00:00
icmp6.h
icmp_var.h
if_atm.c
if_atm.h
if_ether.c	Solve the 'unregistered netisr 18' information notice with a sledgehammer.	2002-06-20 01:27:40 +00:00
if_ether.h
igmp_var.h
igmp.c
igmp.h
in_cksum.c
in_gif.c
in_gif.h
in_pcb.c	Notify functions can destroy the pcb, so they have to return an	2002-06-14 08:35:21 +00:00
in_pcb.h	Notify functions can destroy the pcb, so they have to return an	2002-06-14 08:35:21 +00:00
in_proto.c
in_rmx.c
in_systm.h
in_var.h
in.c	Lock up inpcb.	2002-06-10 20:05:46 +00:00
in.h
ip6.h
ip_divert.c	fix a typo in a comment	2002-06-23 09:13:46 +00:00
ip_dummynet.c	Fix a panic when doing "ipfw add pipe 1 log ..."	2002-07-17 07:21:42 +00:00
ip_dummynet.h	fix indentation of a comment	2002-06-23 09:14:24 +00:00
ip_ecn.c
ip_ecn.h
ip_encap.c
ip_encap.h
ip_flow.c
ip_flow.h
ip_fw2.c	Implement keepalives for dynamic rules, so they will not expire	2002-07-14 23:47:18 +00:00
ip_fw.c	Remove (almost all) global variables that were used to hold	2002-06-22 11:51:02 +00:00
ip_fw.h	Fix a panic when doing "ipfw add pipe 1 log ..."	2002-07-17 07:21:42 +00:00
ip_icmp.c
ip_icmp.h
ip_id.c
ip_input.c	Warning fixes for 64 bits platforms. With this last fix,	2002-06-27 11:02:06 +00:00
ip_mroute.c	Just a comment on some additional consistency checks that could	2002-06-26 21:00:53 +00:00
ip_mroute.h
ip_output.c	Avoid dereferencing a null pointer in ro_rt.	2002-07-12 22:08:47 +00:00
ip_var.h	Remove ip_fw_fwd_addr (forgotten in previous commit)	2002-06-23 09:03:42 +00:00
ip.h
ipprotosw.h
raw_ip.c	Remember to initialize the control block head mutex.	2002-06-11 10:58:57 +00:00
tcp_debug.c
tcp_debug.h
tcp_fsm.h
tcp_input.c	Avoid unlocking the inp twice if badport_bandlim() returns -1.	2002-06-24 22:25:00 +00:00
tcp_output.c	Slightly restructure the #ifdef INET6 sections to make the code	2002-06-23 21:25:36 +00:00
tcp_reass.c	Avoid unlocking the inp twice if badport_bandlim() returns -1.	2002-06-24 22:25:00 +00:00
tcp_seq.h
tcp_subr.c	Introduce two new sysctl's:	2002-07-18 19:06:12 +00:00
tcp_syncache.c	One possible code path for syncache_respond() is:	2002-06-28 19:12:38 +00:00
tcp_timer.c	Introduce two new sysctl's:	2002-07-18 19:06:12 +00:00
tcp_timer.h	Introduce two new sysctl's:	2002-07-18 19:06:12 +00:00
tcp_timewait.c	Introduce two new sysctl's:	2002-07-18 19:06:12 +00:00
tcp_usrreq.c	Because we're holding an exclusive write lock on the head, references to	2002-06-13 23:14:58 +00:00
tcp_var.h	Notify functions can destroy the pcb, so they have to return an	2002-06-14 08:35:21 +00:00
tcp.h
tcpip.h
udp_usrreq.c	Back out the previous change, since it looks like locking udbinfo provides	2002-07-12 09:55:48 +00:00
udp_var.h	Notify functions can destroy the pcb, so they have to return an	2002-06-14 08:35:21 +00:00
udp.h