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9b3bc6bf83
freebsd/sys/netinet
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Mike Silbersack 9b3bc6bf83 Pick the smallest possible TCP window scaling factor that will still allow 
us to scale up to sb_max, aka kern.ipc.maxsockbuf.

We do this because there are broken firewalls that will corrupt the window
scale option, leading to the other endpoint believing that our advertised
window is unscaled.  At scale factors larger than 5 the unscaled window will
drop below 1500 bytes, leading to serious problems when traversing these
broken firewalls.

With the default maxsockbuf of 256K, a scale factor of 3 will be chosen by
this algorithm.  Those who choose a larger maxsockbuf should watch out
for the compatiblity problems mentioned above.

Reviewed by:	andre
2007-10-19 08:53:14 +00:00
..
libalias o Kill EOLWS while I'm here. 2007-04-30 20:26:11 +00:00
accf_data.c Add FBSDID to all files in netinet so that people can more 2007-10-07 20:44:24 +00:00
accf_http.c Add FBSDID to all files in netinet so that people can more 2007-10-07 20:44:24 +00:00
icmp6.h - Disabled responding to NI queries from a global address by default as 2007-05-17 21:20:24 +00:00
icmp_var.h Attempt to improve feature parity between UDPv4 and UDPv6 by merging 2007-07-19 22:34:25 +00:00
if_atm.c
if_atm.h
if_ether.c Add FBSDID to all files in netinet so that people can more 2007-10-07 20:44:24 +00:00
if_ether.h
igmp_var.h Import rewrite of IPv4 socket multicast layer to support source-specific 2007-06-12 16:24:56 +00:00
igmp.c Add FBSDID to all files in netinet so that people can more 2007-10-07 20:44:24 +00:00
igmp.h Stub out imported IGMPv3 definitions which clash with those of 2007-06-15 18:59:10 +00:00
in_cksum.c Add FBSDID to all files in netinet so that people can more 2007-10-07 20:44:24 +00:00
in_gif.c Add FBSDID to all files in netinet so that people can more 2007-10-07 20:44:24 +00:00
in_gif.h
in_mcast.c Over the past couple of years, there have been a number of reports relating 2007-08-06 22:06:36 +00:00
in_pcb.c Add FBSDID to all files in netinet so that people can more 2007-10-07 20:44:24 +00:00
in_pcb.h Remove the now-unused NET_{LOCK,UNLOCK,ASSERT}_GIANT() macros, which 2007-08-06 14:26:03 +00:00
in_proto.c Add FBSDID to all files in netinet so that people can more 2007-10-07 20:44:24 +00:00
in_rmx.c Add FBSDID to all files in netinet so that people can more 2007-10-07 20:44:24 +00:00
in_systm.h
in_var.h Import rewrite of IPv4 socket multicast layer to support source-specific 2007-06-12 16:24:56 +00:00
in.c Add FBSDID to all files in netinet so that people can more 2007-10-07 20:44:24 +00:00
in.h Import rewrite of IPv4 socket multicast layer to support source-specific 2007-06-12 16:24:56 +00:00
ip6.h
ip_carp.c Add FBSDID to all files in netinet so that people can more 2007-10-07 20:44:24 +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 Add FBSDID to all files in netinet so that people can more 2007-10-07 20:44:24 +00:00
ip_divert.h
ip_dummynet.c Add FBSDID to all files in netinet so that people can more 2007-10-07 20:44:24 +00:00
ip_dummynet.h Replace incorrect local OFFSET_OF macro with the correct and generic 2007-06-17 00:33:34 +00:00
ip_ecn.c Add FBSDID to all files in netinet so that people can more 2007-10-07 20:44:24 +00:00
ip_ecn.h
ip_encap.c Add FBSDID to all files in netinet so that people can more 2007-10-07 20:44:24 +00:00
ip_encap.h
ip_fastfwd.c Add FBSDID to all files in netinet so that people can more 2007-10-07 20:44:24 +00:00
ip_fw2.c Add FBSDID to all files in netinet so that people can more 2007-10-07 20:44:24 +00:00
ip_fw_pfil.c Add FBSDID to all files in netinet so that people can more 2007-10-07 20:44:24 +00:00
ip_fw.h Add support for filtering on Routing Header Type 0 and 2007-05-04 11:15:41 +00:00
ip_gre.c Add FBSDID to all files in netinet so that people can more 2007-10-07 20:44:24 +00:00
ip_gre.h Fix stack corruptions on amd64. 2006-01-21 10:44:34 +00:00
ip_icmp.c Add FBSDID to all files in netinet so that people can more 2007-10-07 20:44:24 +00:00
ip_icmp.h
ip_id.c Add FBSDID to all files in netinet so that people can more 2007-10-07 20:44:24 +00:00
ip_input.c Add FBSDID to all files in netinet so that people can more 2007-10-07 20:44:24 +00:00
ip_ipsec.c Add FBSDID to all files in netinet so that people can more 2007-10-07 20:44:24 +00:00
ip_ipsec.h Rename option IPSEC_FILTERGIF to IPSEC_FILTERTUNNEL. 2007-08-05 16:16:15 +00:00
ip_mroute.c Add FBSDID to all files in netinet so that people can more 2007-10-07 20:44:24 +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 Add FBSDID to all files in netinet so that people can more 2007-10-07 20:44:24 +00:00
ip_options.h Normalize style a bit: reduce pseudo-randomness of comment layout and 2007-05-11 10:48:30 +00:00
ip_output.c Add FBSDID to all files in netinet so that people can more 2007-10-07 20:44:24 +00:00
ip_var.h Import rewrite of IPv4 socket multicast layer to support source-specific 2007-06-12 16:24:56 +00:00
ip.h White space and style cleanup. 2007-05-11 11:00:48 +00:00
ipprotosw.h
pim_var.h
pim.h
raw_ip.c Add FBSDID to all files in netinet so that people can more 2007-10-07 20:44:24 +00:00
sctp_asconf.c - Bug fix managing congestion parameter on immediate 2007-10-01 03:22:29 +00:00
sctp_asconf.h - Get rid of unsused constants for sysctl variables. 2007-09-15 19:07:42 +00:00
sctp_auth.c - Locking compatiability changes. This involves adding 2007-09-08 11:35:11 +00:00
sctp_auth.h - fix send_failed notification contents 2007-06-09 13:46:57 +00:00
sctp_bsd_addr.c - send call has a reference to uio->uio_resid in 2007-09-08 17:48:46 +00:00
sctp_bsd_addr.h - Fixes so we won't try to start a timer when we 2007-05-29 09:29:03 +00:00
sctp_cc_functions.c - Locking compatiability changes. This involves adding 2007-09-08 11:35:11 +00:00
sctp_cc_functions.h - Added some comments to tell where the htcp 2007-09-10 17:06:25 +00:00
sctp_constants.h - fix sctp_ifn initial refcount issue (prevents deletion) 2007-10-16 14:05:51 +00:00
sctp_crc32.c - Copyright change, cisco's silly tool wants it to say: 2007-05-08 17:01:12 +00:00
sctp_crc32.h - Copyright change, cisco's silly tool wants it to say: 2007-05-08 17:01:12 +00:00
sctp_header.h - Fix address add handling to clear cached routes and source addresses 2007-08-24 00:53:53 +00:00
sctp_indata.c - fix sctp_ifn initial refcount issue (prevents deletion) 2007-10-16 14:05:51 +00:00
sctp_indata.h - Fix stream reset so it limits the number of streams that can be listed 2007-06-22 13:50:56 +00:00
sctp_input.c - fix sctp_ifn initial refcount issue (prevents deletion) 2007-10-16 14:05:51 +00:00
sctp_input.h - Consolidate the code that free's chunks to actually also 2007-07-02 19:22:22 +00:00
sctp_lock_bsd.h - The address lock is changed to a rwlock. This 2007-09-18 15:16:39 +00:00
sctp_os_bsd.h - The address lock is changed to a rwlock. This 2007-09-18 15:16:39 +00:00
sctp_os.h - Fix address add handling to clear cached routes and source addresses 2007-08-24 00:53:53 +00:00
sctp_output.c - fix sctp_ifn initial refcount issue (prevents deletion) 2007-10-16 14:05:51 +00:00
sctp_output.h - Bug fix managing congestion parameter on immediate 2007-10-01 03:22:29 +00:00
sctp_pcb.c - fix sctp_ifn initial refcount issue (prevents deletion) 2007-10-16 14:05:51 +00:00
sctp_pcb.h - The address lock is changed to a rwlock. This 2007-09-18 15:16:39 +00:00
sctp_peeloff.c - Locking compatiability changes. This involves adding 2007-09-08 11:35:11 +00:00
sctp_peeloff.h - Copyright change, cisco's silly tool wants it to say: 2007-05-08 17:01:12 +00:00
sctp_structs.h - fix sctp_ifn initial refcount issue (prevents deletion) 2007-10-16 14:05:51 +00:00
sctp_sysctl.c - DF bit was on for COOKIE-ECHO chunks. This is 2007-09-13 14:43:54 +00:00
sctp_sysctl.h - Get rid of unsused constants for sysctl variables. 2007-09-15 19:07:42 +00:00
sctp_timer.c - fix sctp_ifn initial refcount issue (prevents deletion) 2007-10-16 14:05:51 +00:00
sctp_timer.h - Incorrect error EAGAIN returned for invalid send on a locked 2007-09-13 10:36:43 +00:00
sctp_uio.h - The address lock is changed to a rwlock. This 2007-09-18 15:16:39 +00:00
sctp_usrreq.c - fix sctp_ifn initial refcount issue (prevents deletion) 2007-10-16 14:05:51 +00:00
sctp_var.h - fix sctp_ifn initial refcount issue (prevents deletion) 2007-10-16 14:05:51 +00:00
sctp.h - Get rid of unsused constants for sysctl variables. 2007-09-15 19:07:42 +00:00
sctputil.c - fix sctp_ifn initial refcount issue (prevents deletion) 2007-10-16 14:05:51 +00:00
sctputil.h - DF bit was on for COOKIE-ECHO chunks. This is 2007-09-13 14:43:54 +00:00
tcp_debug.c Add FBSDID to all files in netinet so that people can more 2007-10-07 20:44:24 +00:00
tcp_debug.h o Use a define for a buffer size. 2007-03-24 22:15:02 +00:00
tcp_fsm.h Make tcpstates[] static, and make sure TCPSTATES is defined before 2007-07-30 11:06:42 +00:00
tcp_hostcache.c Add FBSDID to all files in netinet so that people can more 2007-10-07 20:44:24 +00:00
tcp_input.c Add FBSDID to all files in netinet so that people can more 2007-10-07 20:44:24 +00:00
tcp_output.c Add FBSDID to all files in netinet so that people can more 2007-10-07 20:44:24 +00:00
tcp_reass.c Add FBSDID to all files in netinet so that people can more 2007-10-07 20:44:24 +00:00
tcp_sack.c Coalesce two identical UCB licenses into a single license instance with 2007-05-11 11:21:43 +00:00
tcp_seq.h Remove T/TCP RFC1644 Connection Count comparison macros. They are no longer 2006-06-18 14:24:12 +00:00
tcp_subr.c Add FBSDID to all files in netinet so that people can more 2007-10-07 20:44:24 +00:00
tcp_syncache.c Pick the smallest possible TCP window scaling factor that will still allow 2007-10-19 08:53:14 +00:00
tcp_syncache.h Export the contents of the syncache to netstat. 2007-07-27 00:57:06 +00:00
tcp_timer.c Add FBSDID to all files in netinet so that people can more 2007-10-07 20:44:24 +00:00
tcp_timer.h Two changes: 2007-09-24 05:26:24 +00:00
tcp_timewait.c Add FBSDID to all files in netinet so that people can more 2007-10-07 20:44:24 +00:00
tcp_usrreq.c Pick the smallest possible TCP window scaling factor that will still allow 2007-10-19 08:53:14 +00:00
tcp_var.h Two changes: 2007-09-24 05:26:24 +00:00
tcp.h The printf %b list in PRINT_TH_FLAGS has to be in octal numbering. 2007-05-25 21:28:49 +00:00
tcpip.h
udp_usrreq.c Add FBSDID to all files in netinet so that people can more 2007-10-07 20:44:24 +00:00
udp_var.h Further cleanup of UDPv4: 2007-07-10 09:30:46 +00:00
udp.h Gratuitous UDP restyling toward style(9) in 7.x. 2007-02-20 10:13:11 +00:00