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95ad8418dc
freebsd-dev/sys/netinet
History
Qing Li 95ad8418dc This patch is provided to fix a couple of deployment issues observed 
in the field. In one situation, one end of the TCP connection sends
a back-to-back RST packet, with delayed ack, the last_ack_sent variable
has not been update yet. When tcp_insecure_rst is turned off, the code
treats the RST as invalid because last_ack_sent instead of rcv_nxt is
compared against th_seq. Apparently there is some kind of firewall that
sits in between the two ends and that RST packet is the only RST
packet received. With short lived HTTP connections, the symptom is
a large accumulation of connections over a short period of time .

The +/-(1) factor is to take care of implementations out there that
generate RST packets with these types of sequence numbers. This
behavior has also been observed in live environments.

Reviewed by:	silby, Mike Karels
MFC after:	1 week
2007-03-07 23:21:59 +00:00
..
libalias o made in kernel libalias mpsafe 2006-12-15 12:50:06 +00:00
accf_data.c
accf_http.c
icmp6.h
icmp_var.h
if_atm.c
if_atm.h
if_ether.c Comply with RFC 3927, by forcing ARP replies which contain a source 2007-02-02 20:31:44 +00:00
if_ether.h
igmp_var.h
igmp.c Improve style(9) conformance of igmp.c. 2006-12-04 00:41:48 +00:00
igmp.h
in_cksum.c
in_gif.c
in_gif.h
in_pcb.c #ifdef INET6 printing of inpcb IPv6 addresses in DDB. Patch committed 2007-02-18 08:57:23 +00:00
in_pcb.h Add "show inpcb", "show tcpcb" DDB commands, which should come in handy 2007-02-17 21:02:38 +00:00
in_proto.c Build PIM by default as part of the IPv4 multicast forwarding path. 2007-02-10 13:59:13 +00:00
in_rmx.c
in_systm.h
in_var.h The IPv4 code should clean up multicast group state when an interface 2006-09-28 10:04:07 +00:00
in.c In regular forwarding path, reject packets destined for 169.254.0.0/16 2007-02-03 06:45:51 +00:00
in.h Add INADDR_ALLRPTS_GROUP define for 224.0.0.22 for future IGMPv3 support. 2007-02-27 14:45:37 +00:00
ip6.h
ip_carp.c Since rev. 1.94 of netinet/in.c, the netinet layer frees all its 2007-02-02 09:39:09 +00:00
ip_carp.h Make sure that carp_header is 36 bytes long 2006-12-01 18:37:41 +00:00
ip_divert.c Some whitespace nits and remove a few casts. 2006-12-29 14:58:18 +00:00
ip_divert.h
ip_dummynet.c - Use non-recursive mutex. MTX_RECURSE is unnecessary since rev. 1.70 2006-10-29 12:09:24 +00:00
ip_dummynet.h
ip_ecn.c
ip_ecn.h
ip_encap.c
ip_encap.h
ip_fastfwd.c When fast-forwarding is enabled, do not forward directed IPv4 broadcasts 2007-02-05 00:15:40 +00:00
ip_fw2.c Include opt_ipdivert.h so that the message announcing ipfw correctly 2007-02-03 22:11:53 +00:00
ip_fw_pfil.c Summer of Code 2005: improve libalias - part 2 of 2 2006-12-29 21:59:17 +00:00
ip_fw.h Summer of Code 2005: improve libalias - part 2 of 2 2006-12-29 21:59:17 +00:00
ip_gre.c
ip_gre.h
ip_icmp.c Complete break-out of sys/sys/mac.h into sys/security/mac/mac_framework.h 2006-10-22 11:52:19 +00:00
ip_icmp.h
ip_id.c
ip_input.c In regular forwarding path, reject packets destined for 169.254.0.0/16 2007-02-03 06:45:51 +00:00
ip_ipsec.c
ip_ipsec.h
ip_mroute.c Purge an out-of-date comment. 2007-03-04 16:32:19 +00:00
ip_mroute.h Store the cached route in vifp in the normal send_packet() case. 2007-02-08 23:05:08 +00:00
ip_options.c Complete break-out of sys/sys/mac.h into sys/security/mac/mac_framework.h 2006-10-22 11:52:19 +00:00
ip_options.h
ip_output.c Fix undirected broadcast sends for the case where SO_DONTROUTE has also 2007-03-01 13:29:30 +00:00
ip_var.h
ip.h Marking this as __packed was needed to get the alignment and offset of 2007-01-12 07:23:31 +00:00
ipprotosw.h
pim_var.h
pim.h
raw_ip.c Summer of Code 2005: improve libalias - part 2 of 2 2006-12-29 21:59:17 +00:00
sctp_asconf.c - Copyright updates (aka 2007) 2007-02-12 23:24:31 +00:00
sctp_asconf.h - most all includes (#include <>) migrate to the sctp_os_bsd.h file 2007-01-18 09:58:43 +00:00
sctp_auth.c - Copyright updates (aka 2007) 2007-02-12 23:24:31 +00:00
sctp_auth.h - Copyright updates (aka 2007) 2007-02-12 23:24:31 +00:00
sctp_bsd_addr.c - most all includes (#include <>) migrate to the sctp_os_bsd.h file 2007-01-18 09:58:43 +00:00
sctp_bsd_addr.h - most all includes (#include <>) migrate to the sctp_os_bsd.h file 2007-01-18 09:58:43 +00:00
sctp_constants.h - Copyright updates (aka 2007) 2007-02-12 23:24:31 +00:00
sctp_crc32.c - Copyright updates (aka 2007) 2007-02-12 23:24:31 +00:00
sctp_crc32.h - most all includes (#include <>) migrate to the sctp_os_bsd.h file 2007-01-18 09:58:43 +00:00
sctp_header.h Ok, here it is, we finally add SCTP to current. Note that this 2006-11-03 15:23:16 +00:00
sctp_indata.c - Copyright updates (aka 2007) 2007-02-12 23:24:31 +00:00
sctp_indata.h - most all includes (#include <>) migrate to the sctp_os_bsd.h file 2007-01-18 09:58:43 +00:00
sctp_input.c - Copyright updates (aka 2007) 2007-02-12 23:24:31 +00:00
sctp_input.h - most all includes (#include <>) migrate to the sctp_os_bsd.h file 2007-01-18 09:58:43 +00:00
sctp_lock_bsd.h 1) Fixes on a number of different collision case LOR's. 2006-12-14 17:02:55 +00:00
sctp_os_bsd.h - Copyright updates (aka 2007) 2007-02-12 23:24:31 +00:00
sctp_os.h - Copyright updates (aka 2007) 2007-02-12 23:24:31 +00:00
sctp_output.c - Copyright updates (aka 2007) 2007-02-12 23:24:31 +00:00
sctp_output.h - most all includes (#include <>) migrate to the sctp_os_bsd.h file 2007-01-18 09:58:43 +00:00
sctp_pcb.c - Copyright updates (aka 2007) 2007-02-12 23:24:31 +00:00
sctp_pcb.h - most all includes (#include <>) migrate to the sctp_os_bsd.h file 2007-01-18 09:58:43 +00:00
sctp_peeloff.c - Copyright updates (aka 2007) 2007-02-12 23:24:31 +00:00
sctp_peeloff.h - most all includes (#include <>) migrate to the sctp_os_bsd.h file 2007-01-18 09:58:43 +00:00
sctp_structs.h - Copyright updates (aka 2007) 2007-02-12 23:24:31 +00:00
sctp_timer.c - Copyright updates (aka 2007) 2007-02-12 23:24:31 +00:00
sctp_timer.h - most all includes (#include <>) migrate to the sctp_os_bsd.h file 2007-01-18 09:58:43 +00:00
sctp_uio.h - Copyright updates (aka 2007) 2007-02-12 23:24:31 +00:00
sctp_usrreq.c - Copyright updates (aka 2007) 2007-02-12 23:24:31 +00:00
sctp_var.h - Copyright updates (aka 2007) 2007-02-12 23:24:31 +00:00
sctp.h Ok, here it is, we finally add SCTP to current. Note that this 2006-11-03 15:23:16 +00:00
sctputil.c - Copyright updates (aka 2007) 2007-02-12 23:24:31 +00:00
sctputil.h - Copyright updates (aka 2007) 2007-02-12 23:24:31 +00:00
tcp_debug.c
tcp_debug.h
tcp_fsm.h
tcp_hostcache.c MFp4: 92972, 98913 + one more change 2006-12-12 12:17:58 +00:00
tcp_input.c This patch is provided to fix a couple of deployment issues observed 2007-03-07 23:21:59 +00:00
tcp_output.c Prevent TSO mbuf chain from overflowing a few bytes by subtracting the 2007-03-01 13:12:09 +00:00
tcp_reass.c This patch is provided to fix a couple of deployment issues observed 2007-03-07 23:21:59 +00:00
tcp_sack.c
tcp_seq.h
tcp_subr.c Reap FIN_WAIT_2 connections marked SOCANTRCVMORE faster. This mitigate 2007-02-26 22:25:21 +00:00
tcp_syncache.c Change the way the advertized TCP window scaling is computed. Instead of 2007-02-01 17:39:18 +00:00
tcp_timer.c Reap FIN_WAIT_2 connections marked SOCANTRCVMORE faster. This mitigate 2007-02-26 22:25:21 +00:00
tcp_timer.h Reap FIN_WAIT_2 connections marked SOCANTRCVMORE faster. This mitigate 2007-02-26 22:25:21 +00:00
tcp_timewait.c Reap FIN_WAIT_2 connections marked SOCANTRCVMORE faster. This mitigate 2007-02-26 22:25:21 +00:00
tcp_usrreq.c Reap FIN_WAIT_2 connections marked SOCANTRCVMORE faster. This mitigate 2007-02-26 22:25:21 +00:00
tcp_var.h Reap FIN_WAIT_2 connections marked SOCANTRCVMORE faster. This mitigate 2007-02-26 22:25:21 +00:00
tcp.h Expose smoothed RTT and RTT variance measurements to userland via 2007-02-02 18:34:18 +00:00
tcpip.h
udp_usrreq.c Rename two identically named log_in_vain variables: tcp_input.c's static 2007-02-20 10:20:03 +00:00
udp_var.h Rename two identically named log_in_vain variables: tcp_input.c's static 2007-02-20 10:20:03 +00:00
udp.h Gratuitous UDP restyling toward style(9) in 7.x. 2007-02-20 10:13:11 +00:00