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f08535f872
freebsd-skq/sys/netinet
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Gleb Smirnoff f08535f872 Restore a feature that was present in 5.x and 6.x, and was cleared in 
7.x, 8.x and 9.x with pf(4) imports: pfsync(4) should suppress CARP
preemption, while it is running its bulk update.

However, reimplement the feature in more elegant manner, that is
partially inspired by newer OpenBSD:

- Rename term "suppression" to "demotion", to match with OpenBSD.
- Keep a global demotion factor, that can be raised by several
  conditions, for now these are:
  - interface goes down
  - carp(4) has problems with ip_output() or ip6_output()
  - pfsync performs bulk update
- Unlike in OpenBSD the demotion factor isn't a counter, but
  is actual value added to advskew. The adjustment values for
  particular error conditions are also configurable, and their
  defaults are maximum advskew value, so a single failure bumps
  demotion to maximum. This is for POLA compatibility, and should
  satisfy most users.
- Demotion factor is a writable sysctl, so user can do
  foot shooting, if he desires to.
2011-12-20 13:53:31 +00:00
..
cc Staticize malloc types. 2011-04-13 11:28:46 +00:00
ipfw - add a missing "be" and "in" 2011-11-11 22:27:09 +00:00
khelp Use the full and proper company name for Swinburne University of Technology 2011-04-12 08:13:18 +00:00
libalias Mark all SYSCTL_NODEs static that have no corresponding SYSCTL_DECLs. 2011-11-07 15:43:11 +00:00
accf_data.c
accf_dns.c
accf_http.c Mark all SYSCTL_NODEs static that have no corresponding SYSCTL_DECLs. 2011-11-07 15:43:11 +00:00
cc.h Use the full and proper company name for Swinburne University of Technology 2011-04-12 08:13:18 +00:00
icmp6.h - Implement RDNSS and DNSSL options (RFC 6106, IPv6 Router Advertisement 2011-06-06 03:06:43 +00:00
icmp_var.h
if_atm.c Bring back (most of) NATM to avoid further bitrot after r186119. 2010-12-15 22:58:45 +00:00
if_atm.h
if_ether.c A major overhaul of the CARP implementation. The ip_carp.c was started 2011-12-16 12:16:56 +00:00
if_ether.h A major overhaul of the CARP implementation. The ip_carp.c was started 2011-12-16 12:16:56 +00:00
igmp_var.h
igmp.c Mark all SYSCTL_NODEs static that have no corresponding SYSCTL_DECLs. 2011-11-07 15:43:11 +00:00
igmp.h
in_cksum.c
in_debug.c Remove last remnants of classful addressing: 2011-10-15 16:28:06 +00:00
in_gif.c Update packet filter (pf) code to OpenBSD 4.5. 2011-06-28 11:57:25 +00:00
in_gif.h
in_mcast.c Mark all SYSCTL_NODEs static that have no corresponding SYSCTL_DECLs. 2011-11-07 15:43:11 +00:00
in_pcb.c Mark all SYSCTL_NODEs static that have no corresponding SYSCTL_DECLs. 2011-11-07 15:43:11 +00:00
in_pcb.h Cache SO_REUSEPORT socket option in inpcb-layer in order to avoid 2011-11-06 10:47:20 +00:00
in_pcbgroup.c Implement a CPU-affine TCP and UDP connection lookup data structure, 2011-06-06 12:55:02 +00:00
in_proto.c The socket API only specifies SCTP for SOCK_SEQPACKET and 2011-07-12 19:29:29 +00:00
in_rmx.c After some off-list discussion, revert a number of changes to the 2010-11-22 19:32:54 +00:00
in_systm.h
in_var.h A major overhaul of the CARP implementation. The ip_carp.c was started 2011-12-16 12:16:56 +00:00
in.c Since size of struct in_aliasreq has just been changed in r228571, 2011-12-16 13:30:17 +00:00
in.h Add support for IPv4 /31 prefixes, as described in RFC3021. 2011-10-15 18:41:25 +00:00
ip6.h Fix more continuous/contiguous typos (cf. r215955) 2010-11-27 21:51:39 +00:00
ip_carp.c Restore a feature that was present in 5.x and 6.x, and was cleared in 2011-12-20 13:53:31 +00:00
ip_carp.h Restore a feature that was present in 5.x and 6.x, and was cleared in 2011-12-20 13:53:31 +00:00
ip_divert.c Mark all SYSCTL_NODEs static that have no corresponding SYSCTL_DECLs. 2011-11-07 15:43:11 +00:00
ip_divert.h Various cleanup done in ipfw3-head branch including: 2010-01-04 19:01:22 +00:00
ip_dummynet.h whitespace fixes (trailing whitespace, bad indentation 2010-04-19 16:17:30 +00:00
ip_ecn.c
ip_ecn.h
ip_encap.c (S)LIST_HEAD_INITIALIZER takes a (S)LIST_HEAD as an argument. 2009-12-28 22:56:30 +00:00
ip_encap.h
ip_fastfwd.c Use correct field to track statistics counting error as bad header length. 2010-12-05 01:09:48 +00:00
ip_fw.h Add support for IPv6 to ipfw fwd: 2011-08-20 17:05:11 +00:00
ip_gre.c The NetBSD Foundation has granted permission to remove clause 3 and 4 from 2010-03-01 17:05:46 +00:00
ip_gre.h The NetBSD Foundation has granted permission to remove clause 3 and 4 from 2010-03-01 17:05:46 +00:00
ip_icmp.c Update packet filter (pf) code to OpenBSD 4.5. 2011-06-28 11:57:25 +00:00
ip_icmp.h MFP4: @176978-176982, 176984, 176990-176994, 177441 2010-04-29 11:52:42 +00:00
ip_id.c
ip_input.c Remove last remnants of classful addressing: 2011-10-15 16:28:06 +00:00
ip_ipsec.c Correct comments and debug logging in ipsec to better match reality. 2011-06-08 03:02:11 +00:00
ip_ipsec.h Remove ifdefed out part of code, which seems to have originated a decade ago 2009-11-09 19:53:34 +00:00
ip_mroute.c Mark all SYSCTL_NODEs static that have no corresponding SYSCTL_DECLs. 2011-11-07 15:43:11 +00:00
ip_mroute.h Virtualize the IPv4 multicast routing code. 2010-06-02 15:44:43 +00:00
ip_options.c Use ifa_ifwithaddr_check() rather than ifa_ifwithaddr() as we are not 2010-10-14 12:32:49 +00:00
ip_options.h
ip_output.c Cache SO_REUSEPORT socket option in inpcb-layer in order to avoid 2011-11-06 10:47:20 +00:00
ip_var.h Add new rule actions "call" and "return" to ipfw. They make 2011-06-29 10:06:58 +00:00
ip.h use u_char instead of u_int for short bitfields. 2010-02-01 14:13:44 +00:00
pim_var.h Virtualize the IPv4 multicast routing code. 2010-06-02 15:44:43 +00:00
pim.h
raw_ip.c Add back the IP header length to the total packet length field on 2011-10-07 13:43:01 +00:00
sctp_asconf.c Fix unused parameter warnings. 2011-12-17 19:21:40 +00:00
sctp_asconf.h Fix unused parameter warnings. 2011-12-17 19:21:40 +00:00
sctp_auth.c Fix unused parameter warnings. 2011-12-17 19:21:40 +00:00
sctp_auth.h Fix unused parameter warnings. 2011-12-17 19:21:40 +00:00
sctp_bsd_addr.c Fix unused parameter warnings. 2011-12-17 19:21:40 +00:00
sctp_bsd_addr.h Fix unused parameter warnings. 2011-12-17 19:21:40 +00:00
sctp_cc_functions.c Fix unused parameter warnings. 2011-12-17 19:21:40 +00:00
sctp_constants.h Fix unused parameter warnings. 2011-12-17 19:21:40 +00:00
sctp_crc32.c 1) Typo correction in comments and one spacing change. 2011-02-05 12:12:51 +00:00
sctp_crc32.h Fix unused parameter warnings. 2011-12-17 19:21:40 +00:00
sctp_dtrace_declare.h Fix unused parameter warnings. 2011-12-17 19:21:40 +00:00
sctp_dtrace_define.h Fix unused parameter warnings. 2011-12-17 19:21:40 +00:00
sctp_header.h Fix unused parameter warnings. 2011-12-17 19:21:40 +00:00
sctp_indata.c Fix unused parameter warnings. 2011-12-17 19:21:40 +00:00
sctp_indata.h Fix unused parameter warnings. 2011-12-17 19:21:40 +00:00
sctp_input.c Fix unused parameter warnings. 2011-12-17 19:21:40 +00:00
sctp_input.h Fix unused parameter warnings. 2011-12-17 19:21:40 +00:00
sctp_lock_bsd.h 1) Typo correction in comments and one spacing change. 2011-02-05 12:12:51 +00:00
sctp_os_bsd.h Remove some leftover debug code. 2011-04-30 11:22:30 +00:00
sctp_os.h Fix unused parameter warnings. 2011-12-17 19:21:40 +00:00
sctp_output.c Fix unused parameter warnings. 2011-12-17 19:21:40 +00:00
sctp_output.h Fix unused parameter warnings. 2011-12-17 19:21:40 +00:00
sctp_pcb.c Fix unused parameter warnings. 2011-12-17 19:21:40 +00:00
sctp_pcb.h Fix unused parameter warnings. 2011-12-17 19:21:40 +00:00
sctp_peeloff.c Fix unused parameter warnings. 2011-12-17 19:21:40 +00:00
sctp_peeloff.h Fix unused parameter warnings. 2011-12-17 19:21:40 +00:00
sctp_ss_functions.c Fix unused parameter warnings. 2011-12-17 19:21:40 +00:00
sctp_structs.h Fix unused parameter warnings. 2011-12-17 19:21:40 +00:00
sctp_sysctl.c Fix unused parameter warnings. 2011-12-17 19:21:40 +00:00
sctp_sysctl.h Fix unused parameter warnings. 2011-12-17 19:21:40 +00:00
sctp_timer.c Fix unused parameter warnings. 2011-12-17 19:21:40 +00:00
sctp_timer.h Fix unused parameter warnings. 2011-12-17 19:21:40 +00:00
sctp_uio.h Fix unused parameter warnings. 2011-12-17 19:21:40 +00:00
sctp_usrreq.c Fix unused parameter warnings. 2011-12-17 19:21:40 +00:00
sctp_var.h Fix unused parameter warnings. 2011-12-17 19:21:40 +00:00
sctp.h Fix unused parameter warnings. 2011-12-17 19:21:40 +00:00
sctputil.c Fix unused parameter warnings. 2011-12-17 19:21:40 +00:00
sctputil.h Fix unused parameter warnings. 2011-12-17 19:21:40 +00:00
siftr.c Decompose the current single inpcbinfo lock into two locks: 2011-05-30 09:43:55 +00:00
tcp_debug.c
tcp_debug.h
tcp_fsm.h
tcp_hostcache.c Mark all SYSCTL_NODEs static that have no corresponding SYSCTL_DECLs. 2011-11-07 15:43:11 +00:00
tcp_hostcache.h
tcp_input.c Mark all SYSCTL_NODEs static that have no corresponding SYSCTL_DECLs. 2011-11-07 15:43:11 +00:00
tcp_lro.c Don't allow lro->len to exceed 65535, as this will result in overflow 2011-07-05 18:43:54 +00:00
tcp_lro.h Trim extra spaces before tabs. 2011-01-07 21:40:34 +00:00
tcp_offload.c
tcp_offload.h Fix typos - remove duplicate "the". 2011-02-21 09:01:34 +00:00
tcp_output.c Restore sysctl names for tcp_sendspace/tcp_recvspace. 2011-11-02 20:58:47 +00:00
tcp_reass.c Plug a TCP reassembly UMA zone leak introduced in r226113 by only using the 2011-11-27 02:32:08 +00:00
tcp_sack.c Covers values if (BYTES_THIS_ACK(tp, th) / tp->t_maxseg) value is from 2011-03-28 19:03:56 +00:00
tcp_seq.h
tcp_subr.c Unbreak no-INET kernels after r223839 adding the needed #ifdef INET. 2011-07-14 13:44:48 +00:00
tcp_syncache.c Mark all SYSCTL_NODEs static that have no corresponding SYSCTL_DECLs. 2011-11-07 15:43:11 +00:00
tcp_syncache.h Add spares to the network stack for FreeBSD-9: 2011-07-17 21:15:20 +00:00
tcp_timer.c Make sure the inp wasn't dropped when rexmt let go of the inp and 2011-10-12 19:52:23 +00:00
tcp_timer.h Remove the TCP inflight bandwidth limiter as announced in r211315 2010-09-16 21:06:45 +00:00
tcp_timewait.c Oops, fix order of sequence numbers in KASSERT()'s to catch negative 2011-05-14 14:41:40 +00:00
tcp_usrreq.c Move the tcp_sendspace and tcp_recvspace sysctl's from 2011-10-16 20:18:39 +00:00
tcp_var.h Remove the ss_fltsz and ss_fltsz_local sysctl's which have 2011-10-16 20:06:44 +00:00
tcp.h Add missing #includes. 2011-10-21 12:58:34 +00:00
tcpip.h
toedev.h
udp_usrreq.c Add support for IPv6 to ipfw fwd: 2011-08-20 17:05:11 +00:00
udp_var.h Forward declare mbuf and inpcb. 2011-10-16 10:58:00 +00:00
udp.h Trim extra spaces before tabs. 2011-01-07 21:40:34 +00:00