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freebsd-skq/sys/netinet
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Michael Tuexen 190d9abce7 Syncoockies can be used in combination with the syncache. If the cache 
overflows, syncookies are used.
This patch restricts the usage of syncookies in this case: accept
syncookies only if there was an overflow of the syncache recently.
This mitigates a problem reported in PR217637, where is syncookie was
accepted without any recent drops.
Thanks to glebius@ for suggesting an improvement.

PR:			217637
Reviewed by:		gnn, glebius
MFC after:		1 week
Sponsored by:		Netflix, Inc.
Differential Revision:	https://reviews.freebsd.org/D10272
2017-04-20 19:19:33 +00:00
..
cc
Fix a variety of cosmetic typos and misspellings
2017-01-15 18:00:45 +00:00
khelp
Remove "long" variables from the TCP stack (not including the modular
2016-10-06 16:28:34 +00:00
libalias
alias_proxy.c: Fix accidental error quashing
2017-03-13 18:05:31 +00:00
tcp_stacks
The sysctl variable net.inet.tcp.drop_synfin is not honored in all states,
2017-04-12 20:27:15 +00:00
accf_data.c
…
accf_dns.c
…
accf_http.c
…
icmp6.h
Renumber copyright clause 4
2017-02-28 23:42:47 +00:00
icmp_var.h
Renumber copyright clause 4
2017-02-28 23:42:47 +00:00
if_atm.c
…
if_atm.h
…
if_ether.c
Fix the L2 address printed in the "arp: %s moved from %*D" message.
2017-03-11 04:57:52 +00:00
if_ether.h
Renumber copyright clause 4
2017-02-28 23:42:47 +00:00
igmp_var.h
Renumber copyright clause 4
2017-02-28 23:42:47 +00:00
igmp.c
Add some ntohl() love to r315277
2017-03-14 20:57:54 +00:00
igmp.h
Renumber copyright clause 4
2017-02-28 23:42:47 +00:00
in_cksum.c
Renumber copyright clause 4
2017-02-28 23:42:47 +00:00
in_debug.c
…
in_fib.c
Renumber copyright clause 4
2017-02-28 23:42:47 +00:00
in_fib.h
Renumber copyright clause 4
2017-02-28 23:42:47 +00:00
in_gif.c
Merge helper fib* functions used for basic lookups.
2015-12-08 10:50:03 +00:00
in_jail.c
Allow explicitly assigned IPv4 loopback address to be used in jails
2017-03-31 00:41:54 +00:00
in_kdtrace.c
Use estimated RTT for receive buffer auto resizing instead of timestamps
2017-04-10 08:19:35 +00:00
in_kdtrace.h
Use estimated RTT for receive buffer auto resizing instead of timestamps
2017-04-10 08:19:35 +00:00
in_mcast.c
Add some ntohl() love to r315277
2017-03-14 20:57:54 +00:00
in_pcb.c
Fix reference count leak with L2 caching.
2017-03-25 15:06:28 +00:00
in_pcb.h
Force same alignment on struct xinpgen as we have on struct xinpcb. This
2017-03-21 16:23:44 +00:00
in_pcbgroup.c
Unbreak the RSS/PCBGROUp build.
2016-03-31 00:53:23 +00:00
in_prot.c
Remove BSD and USL copyright and update license block in in_prot.c, as the
2016-07-28 18:39:30 +00:00
in_proto.c
Renumber copyright clause 4
2017-02-28 23:42:47 +00:00
in_rmx.c
Code duplication but rib_head is special. Not found an easy way to go
2016-02-03 21:56:51 +00:00
in_rss.c
…
in_rss.h
…
in_systm.h
Renumber copyright clause 4
2017-02-28 23:42:47 +00:00
in_var.h
Renumber copyright clause 4
2017-02-28 23:42:47 +00:00
in.c
Renumber copyright clause 4
2017-02-28 23:42:47 +00:00
in.h
Make sysctl identifiers for direct netisr queue unique.
2017-04-11 19:20:20 +00:00
ip6.h
Renumber copyright clause 4
2017-02-28 23:42:47 +00:00
ip_carp.c
After the in_control() changes in r257692, an existing address is
2017-01-25 19:04:08 +00:00
ip_carp.h
After the in_control() changes in r257692, an existing address is
2017-01-25 19:04:08 +00:00
ip_divert.c
Hide struct inpcb, struct tcpcb from the userland.
2017-03-21 06:39:49 +00:00
ip_divert.h
…
ip_dummynet.h
Import Dummynet AQM version 0.2.1 (CoDel, FQ-CoDel, PIE and FQ-PIE).
2016-05-26 21:40:13 +00:00
ip_ecn.c
…
ip_ecn.h
…
ip_encap.c
Remove sys/eventhandler.h from net/route.h
2016-01-09 09:34:39 +00:00
ip_encap.h
…
ip_fastfwd.c
When we are sending IP fragments, update ip pointers in IP_PROBE() for
2016-12-29 19:57:46 +00:00
ip_fw.h
Add O_EXTERNAL_DATA opcode support.
2017-04-03 02:44:40 +00:00
ip_gre.c
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ip_icmp.c
Renumber copyright clause 4
2017-02-28 23:42:47 +00:00
ip_icmp.h
Renumber copyright clause 4
2017-02-28 23:42:47 +00:00
ip_id.c
Replace a number of conflations of mp_ncpus and mp_maxid with either
2016-07-06 14:09:49 +00:00
ip_input.c
Make sysctl identifiers for direct netisr queue unique.
2017-04-11 19:20:20 +00:00
ip_mroute.c
Add some ntohl() love to r315277
2017-03-14 20:57:54 +00:00
ip_mroute.h
Renumber copyright clause 4
2017-02-28 23:42:47 +00:00
ip_options.c
Renumber copyright clause 4
2017-02-28 23:42:47 +00:00
ip_options.h
Renumber copyright clause 4
2017-02-28 23:42:47 +00:00
ip_output.c
Fix reference count leak with L2 caching.
2017-03-25 15:06:28 +00:00
ip_reass.c
Renumber copyright clause 4
2017-02-28 23:42:47 +00:00
ip_var.h
Renumber copyright clause 4
2017-02-28 23:42:47 +00:00
ip.h
Renumber copyright clause 4
2017-02-28 23:42:47 +00:00
pim_var.h
…
pim.h
…
raw_ip.c
Hide struct inpcb, struct tcpcb from the userland.
2017-03-21 06:39:49 +00:00
sctp_asconf.c
Whitespace changes.
2016-12-26 11:06:41 +00:00
sctp_asconf.h
Whitespace changes.
2016-12-06 10:21:25 +00:00
sctp_auth.c
Whitespace changes.
2016-12-26 11:06:41 +00:00
sctp_auth.h
Whitespace changes.
2016-12-26 11:06:41 +00:00
sctp_bsd_addr.c
Whitespace changes.
2016-12-26 11:06:41 +00:00
sctp_bsd_addr.h
Whitespace changes.
2016-12-26 11:06:41 +00:00
sctp_cc_functions.c
Whitespace changes.
2016-12-26 11:06:41 +00:00
sctp_constants.h
Cleanup the names of SSN, SID, TSN, FSN, PPID and MID.
2016-12-07 19:30:59 +00:00
sctp_crc32.c
Whitespace changes.
2016-12-26 11:06:41 +00:00
sctp_crc32.h
Whitespace changes.
2016-12-06 10:21:25 +00:00
sctp_dtrace_declare.h
…
sctp_dtrace_define.h
This is work done by Michael Tuexen and myself at the IETF. This
2016-04-07 09:10:34 +00:00
sctp_header.h
Cleanup the names of SSN, SID, TSN, FSN, PPID and MID.
2016-12-07 19:30:59 +00:00
sctp_indata.c
Whitespace changes.
2016-12-26 11:06:41 +00:00
sctp_indata.h
Whitespace changes.
2016-12-26 11:06:41 +00:00
sctp_input.c
Remove IPsec related PCB code from SCTP.
2017-02-13 11:37:52 +00:00
sctp_input.h
Whitespace changes.
2016-12-26 11:06:41 +00:00
sctp_lock_bsd.h
netinet/sctp*: minor spelling fixes in comments.
2016-05-02 20:56:11 +00:00
sctp_os_bsd.h
Remove IPsec related PCB code from SCTP.
2017-02-13 11:37:52 +00:00
sctp_os.h
…
sctp_output.c
Ensure that the variable bail is always initialized before used.
2017-02-01 00:10:29 +00:00
sctp_output.h
Whitespace changes.
2016-12-26 11:06:41 +00:00
sctp_pcb.c
Remove IPsec related PCB code from SCTP.
2017-02-13 11:37:52 +00:00
sctp_pcb.h
Whitespace changes.
2016-12-26 11:06:41 +00:00
sctp_peeloff.c
…
sctp_peeloff.h
Whitespace changes.
2016-12-06 10:21:25 +00:00
sctp_ss_functions.c
Whitespace changes.
2016-12-26 11:06:41 +00:00
sctp_structs.h
Whitespace changes.
2016-12-26 11:06:41 +00:00
sctp_syscalls.c
Renumber copyright clause 4
2017-02-28 23:42:47 +00:00
sctp_sysctl.c
Whitespace changes.
2016-12-26 11:06:41 +00:00
sctp_sysctl.h
Retire net.inet.sctp.strict_sacks and net.inet.sctp.strict_data_order
2016-05-12 16:34:59 +00:00
sctp_timer.c
Remove a duplicate debug statement.
2017-01-31 23:34:02 +00:00
sctp_timer.h
Code cleanup which will silence a warning in PVS / D5245.
2016-02-17 18:04:22 +00:00
sctp_uio.h
Whitespace changes.
2016-12-06 10:21:25 +00:00
sctp_usrreq.c
Take the SCTP common header into account when computing the
2017-01-31 23:36:31 +00:00
sctp_var.h
Cleanup the names of SSN, SID, TSN, FSN, PPID and MID.
2016-12-07 19:30:59 +00:00
sctp.h
This is work done by Michael Tuexen and myself at the IETF. This
2016-04-07 09:10:34 +00:00
sctputil.c
Whitespace changes.
2016-12-26 11:06:41 +00:00
sctputil.h
Whitespace changes.
2016-12-26 11:06:41 +00:00
siftr.c
Use SI_SUB_LAST instead of SI_SUB_SMP as the "catch-all" subsystem.
2016-03-11 23:18:06 +00:00
tcp_debug.c
Renumber copyright clause 4
2017-02-28 23:42:47 +00:00
tcp_debug.h
Renumber copyright clause 4
2017-02-28 23:42:47 +00:00
tcp_fastopen.c
Fix VIMAGE-related bugs in TFO. The autokey callout vnet context was
2017-02-03 17:02:57 +00:00
tcp_fastopen.h
Implementation of server-side TCP Fast Open (TFO) [RFC7413].
2015-12-24 19:09:48 +00:00
tcp_fsm.h
Renumber copyright clause 4
2017-02-28 23:42:47 +00:00
tcp_hostcache.c
Use inet_ntoa_r() instead of inet_ntoa() throughout the kernel
2017-02-16 20:47:41 +00:00
tcp_hostcache.h
Remove "long" variables from the TCP stack (not including the modular
2016-10-06 16:28:34 +00:00
tcp_input.c
The sysctl variable net.inet.tcp.drop_synfin is not honored in all states,
2017-04-12 20:27:15 +00:00
tcp_lro.c
Free lro_hash unconditionally, just like lro_mbuf_data a few lines
2017-04-19 23:06:07 +00:00
tcp_lro.h
tcp/lro: Implement hash table for LRO entries.
2016-08-02 06:36:47 +00:00
tcp_offload.c
Augment struct tcpstat with tcps_states[], which is used for book-keeping
2016-01-27 00:45:46 +00:00
tcp_offload.h
…
tcp_output.c
Use estimated RTT for receive buffer auto resizing instead of timestamps
2017-04-10 08:19:35 +00:00
tcp_pcap.c
The TCPPCAP debugging feature caches recently-used mbufs for use in
2016-07-06 16:17:13 +00:00
tcp_pcap.h
The TCPPCAP debugging feature caches recently-used mbufs for use in
2016-07-06 16:17:13 +00:00
tcp_reass.c
Renumber copyright clause 4
2017-02-28 23:42:47 +00:00
tcp_sack.c
Remove a KASSERT which is not always true.
2016-12-25 17:37:18 +00:00
tcp_seq.h
Renumber copyright clause 4
2017-02-28 23:42:47 +00:00
tcp_subr.c
Hide struct inpcb, struct tcpcb from the userland.
2017-03-21 06:39:49 +00:00
tcp_syncache.c
Syncoockies can be used in combination with the syncache. If the cache
2017-04-20 19:19:33 +00:00
tcp_syncache.h
Syncoockies can be used in combination with the syncache. If the cache
2017-04-20 19:19:33 +00:00
tcp_timer.c
Hide struct inpcb, struct tcpcb from the userland.
2017-03-21 06:39:49 +00:00
tcp_timer.h
Hide struct inpcb, struct tcpcb from the userland.
2017-03-21 06:39:49 +00:00
tcp_timewait.c
Renumber copyright clause 4
2017-02-28 23:42:47 +00:00
tcp_usrreq.c
Renumber copyright clause 4
2017-02-28 23:42:47 +00:00
tcp_var.h
Use estimated RTT for receive buffer auto resizing instead of timestamps
2017-04-10 08:19:35 +00:00
tcp.h
Renumber copyright clause 4
2017-02-28 23:42:47 +00:00
tcpip.h
Renumber copyright clause 4
2017-02-28 23:42:47 +00:00
toecore.c
This change re-adds L2 caching for TCP and UDP, as originally added in D4306
2016-06-02 17:51:29 +00:00
toecore.h
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udp_usrreq.c
Rework r316770 to make it protocol independent and general, like we
2017-04-14 09:00:48 +00:00
udp_var.h
Renumber copyright clause 4
2017-02-28 23:42:47 +00:00
udp.h
Renumber copyright clause 4
2017-02-28 23:42:47 +00:00
udplite.h
…