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freebsd-dev/sys/net
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Alexander V. Chernikov 1435dcd94f Fix outgoing TCP/UDP packet drop on arp/ndp entry expiration. 
Current arp/nd code relies on the feedback from the datapath indicating
 that the entry is still used. This mechanism is incorporated into the
 arpresolve()/nd6_resolve() routines. After the inpcb route cache
 introduction, the packet path for the locally-originated packets changed,
 passing cached lle pointer to the ether_output() directly. This resulted
 in the arp/ndp entry expire each time exactly after the configured max_age
 interval. During the small window between the ARP/NDP request and reply
 from the router, most of the packets got lost.

Fix this behaviour by plugging datapath notification code to the packet
 path used by route cache. Unify the notification code by using single
 inlined function with the per-AF callbacks.

Reported by:	sthaug at nethelp.no
Reviewed by:	ae
MFC after:	2 weeks
2018-03-17 17:05:48 +00:00
..
altq kernel: Fix several typos and minor errors 2017-12-27 03:23:21 +00:00
bpf_buffer.c sys: further adoption of SPDX licensing ID tags. 2017-11-20 19:43:44 +00:00
bpf_buffer.h sys: general adoption of SPDX licensing ID tags. 2017-11-27 15:23:17 +00:00
bpf_filter.c sys: further adoption of SPDX licensing ID tags. 2017-11-20 19:43:44 +00:00
bpf_jitter.c sys: further adoption of SPDX licensing ID tags. 2017-11-20 19:43:44 +00:00
bpf_jitter.h sys: further adoption of SPDX licensing ID tags. 2017-11-20 19:43:44 +00:00
bpf_zerocopy.c sys: general adoption of SPDX licensing ID tags. 2017-11-27 15:23:17 +00:00
bpf_zerocopy.h sys: general adoption of SPDX licensing ID tags. 2017-11-27 15:23:17 +00:00
bpf.c BPF: Switch to 32 bit compatible mode only when thread is 32 bit 2018-01-25 12:13:41 +00:00
bpf.h sys: further adoption of SPDX licensing ID tags. 2017-11-20 19:43:44 +00:00
bpfdesc.h sys: further adoption of SPDX licensing ID tags. 2017-11-20 19:43:44 +00:00
bridgestp.c sys: general adoption of SPDX licensing ID tags. 2017-11-27 15:23:17 +00:00
bridgestp.h sys: general adoption of SPDX licensing ID tags. 2017-11-27 15:23:17 +00:00
dlt.h MFV r313759: license change for a few headers (4 clause BSD to 3 clause BSD). 2017-02-15 07:22:47 +00:00
ethernet.h Define ethernet type 0x88A8 as ETHERTYPE_QINQ. 2018-03-06 12:01:31 +00:00
fddi.h spdx: initial adoption of licensing ID tags. 2017-11-18 14:26:50 +00:00
firewire.h sys: general adoption of SPDX licensing ID tags. 2017-11-27 15:23:17 +00:00
ieee8023ad_lacp.c Added missing CTLFLAG_VNET to lacp default_strict_mode 2018-01-24 10:13:14 +00:00
ieee8023ad_lacp.h sys: general adoption of SPDX licensing ID tags. 2017-11-27 15:23:17 +00:00
ieee_oui.h sys: general adoption of SPDX licensing ID tags. 2017-11-27 15:23:17 +00:00
if_arc.h sys: further adoption of SPDX licensing ID tags. 2017-11-20 19:43:44 +00:00
if_arcsubr.c spdx: initial adoption of licensing ID tags. 2017-11-18 14:26:50 +00:00
if_arp.h sys: further adoption of SPDX licensing ID tags. 2017-11-20 19:43:44 +00:00
if_bridge.c sys: general adoption of SPDX licensing ID tags. 2017-11-27 15:23:17 +00:00
if_bridgevar.h sys: general adoption of SPDX licensing ID tags. 2017-11-27 15:23:17 +00:00
if_clone.c Do not pass NULL pointer to copyout in if_clone_list. 2017-12-23 16:45:24 +00:00
if_clone.h sys: further adoption of SPDX licensing ID tags. 2017-11-20 19:43:44 +00:00
if_dead.c sys: general adoption of SPDX licensing ID tags. 2017-11-27 15:23:17 +00:00
if_debug.c sys: general adoption of SPDX licensing ID tags. 2017-11-27 15:23:17 +00:00
if_disc.c sys: further adoption of SPDX licensing ID tags. 2017-11-20 19:43:44 +00:00
if_dl.h sys: further adoption of SPDX licensing ID tags. 2017-11-20 19:43:44 +00:00
if_edsc.c sys: further adoption of SPDX licensing ID tags. 2017-11-20 19:43:44 +00:00
if_enc.c sys: general adoption of SPDX licensing ID tags. 2017-11-27 15:23:17 +00:00
if_enc.h sys: general adoption of SPDX licensing ID tags. 2017-11-27 15:23:17 +00:00
if_epair.c sys: general adoption of SPDX licensing ID tags. 2017-11-27 15:23:17 +00:00
if_ethersubr.c Fix outgoing TCP/UDP packet drop on arp/ndp entry expiration. 2018-03-17 17:05:48 +00:00
if_fddisubr.c Fix build. 2017-11-19 11:21:16 +00:00
if_fwsubr.c sys: further adoption of SPDX licensing ID tags. 2017-11-20 19:43:44 +00:00
if_gif.c Do pass removing some write-only variables from the kernel. 2017-12-25 04:48:39 +00:00
if_gif.h sys: further adoption of SPDX licensing ID tags. 2017-11-20 19:43:44 +00:00
if_gre.c sys: general adoption of SPDX licensing ID tags. 2017-11-27 15:23:17 +00:00
if_gre.h sys: general adoption of SPDX licensing ID tags. 2017-11-27 15:23:17 +00:00
if_ipsec.c Introduce the concept of IPsec security policies scope. 2017-03-07 00:13:53 +00:00
if_ipsec.h Merge projects/ipsec into head/. 2017-02-06 08:49:57 +00:00
if_iso88025subr.c sys: general adoption of SPDX licensing ID tags. 2017-11-27 15:23:17 +00:00
if_lagg.c Disabled the use of flowid for lagg by default 2018-01-04 20:05:47 +00:00
if_lagg.h Remove some code, dead from the day one. 2017-05-25 23:19:09 +00:00
if_llatbl.c sys: general adoption of SPDX licensing ID tags. 2017-11-27 15:23:17 +00:00
if_llatbl.h Fix outgoing TCP/UDP packet drop on arp/ndp entry expiration. 2018-03-17 17:05:48 +00:00
if_llc.h sys: further adoption of SPDX licensing ID tags. 2017-11-20 19:43:44 +00:00
if_loop.c sys: further adoption of SPDX licensing ID tags. 2017-11-20 19:43:44 +00:00
if_me.c Do not adjust interface MTU automatically. Leave this task to the system 2017-04-11 08:56:18 +00:00
if_media.c sys: general adoption of SPDX licensing ID tags. 2017-11-27 15:23:17 +00:00
if_media.h Correct comment for IFM_IEEE80211_VHT media variant. 2018-03-15 23:32:29 +00:00
if_mib.c
if_mib.h
if_pflog.h sys: general adoption of SPDX licensing ID tags. 2017-11-27 15:23:17 +00:00
if_pfsync.h sys: general adoption of SPDX licensing ID tags. 2017-11-27 15:23:17 +00:00
if_sppp.h
if_spppfr.c
if_spppsubr.c
if_stf.c sys: further adoption of SPDX licensing ID tags. 2017-11-20 19:43:44 +00:00
if_tap.c Disallow TUN and TAP character device IOCTLs to modify the network device 2017-11-29 09:40:11 +00:00
if_tap.h sys: general adoption of SPDX licensing ID tags. 2017-11-27 15:23:17 +00:00
if_tapvar.h sys: general adoption of SPDX licensing ID tags. 2017-11-27 15:23:17 +00:00
if_tun.c Disallow TUN and TAP character device IOCTLs to modify the network device 2017-11-29 09:40:11 +00:00
if_tun.h
if_types.h sys: further adoption of SPDX licensing ID tags. 2017-11-20 19:43:44 +00:00
if_var.h sys: further adoption of SPDX licensing ID tags. 2017-11-20 19:43:44 +00:00
if_vlan_var.h Properly define the VLAN_XXX() function macros to avoid miscompilation when 2017-11-30 11:35:22 +00:00
if_vlan.c Revert r327828, r327949, r327953, r328016-r328026, r328041: 2018-01-21 15:42:36 +00:00
if_vxlan.c Add macro for vxlan list mutex lock and unlock 2017-12-30 19:49:40 +00:00
if_vxlan.h Add support for IPv6 scoped addresses to vxlan 2017-12-30 04:03:53 +00:00
if.c sys: further adoption of SPDX licensing ID tags. 2017-11-20 19:43:44 +00:00
if.h Garbage collect IFCAP_POLLING_NOCOUNT. It wasn't used since very 2017-12-06 23:03:34 +00:00
ifdi_if.m Update Matthew Macy contact info 2017-12-19 17:59:00 +00:00
iflib.c iflib: stop timer callout when stopping 2018-03-02 18:48:07 +00:00
iflib.h IFLIB: Make isc_magic unsigned 2018-02-21 18:57:00 +00:00
ifq.h sys: further adoption of SPDX licensing ID tags. 2017-11-20 19:43:44 +00:00
iso88025.h sys: general adoption of SPDX licensing ID tags. 2017-11-27 15:23:17 +00:00
mp_ring.c Have ifmp_ring_enqueue() abdicate instead of switch to a consumer 2017-09-23 16:46:30 +00:00
mp_ring.h
mppc.h ng_mppc(4): Bring netgraph(3) MPPC compression support. 2016-06-07 15:07:00 +00:00
mppcc.c ng_mppc(4):: basic readability cleanups. 2016-07-09 02:33:45 +00:00
mppcd.c ng_mppc(4):: basic readability cleanups. 2016-07-09 02:33:45 +00:00
netisr_internal.h sys: general adoption of SPDX licensing ID tags. 2017-11-27 15:23:17 +00:00
netisr.c sys: general adoption of SPDX licensing ID tags. 2017-11-27 15:23:17 +00:00
netisr.h sys: general adoption of SPDX licensing ID tags. 2017-11-27 15:23:17 +00:00
netmap_user.h sys: general adoption of SPDX licensing ID tags. 2017-11-27 15:23:17 +00:00
netmap_virt.h Various fixes for ptnet/ptnetmap (passthrough of netmap ports). In detail: 2016-10-27 09:46:22 +00:00
netmap.h sys: general adoption of SPDX licensing ID tags. 2017-11-27 15:23:17 +00:00
paravirt.h
pfil.c sys: general adoption of SPDX licensing ID tags. 2017-11-27 15:23:17 +00:00
pfil.h sys: general adoption of SPDX licensing ID tags. 2017-11-27 15:23:17 +00:00
pfkeyv2.h sys: further adoption of SPDX licensing ID tags. 2017-11-20 19:43:44 +00:00
pfvar.h pf: Cope with overly large net.pf.states_hashsize 2018-02-25 08:56:44 +00:00
ppp_defs.h
radix_mpath.c sys: further adoption of SPDX licensing ID tags. 2017-11-20 19:43:44 +00:00
radix_mpath.h sys: further adoption of SPDX licensing ID tags. 2017-11-20 19:43:44 +00:00
radix.c sys: further adoption of SPDX licensing ID tags. 2017-11-20 19:43:44 +00:00
radix.h sys: further adoption of SPDX licensing ID tags. 2017-11-20 19:43:44 +00:00
raw_cb.c sys: further adoption of SPDX licensing ID tags. 2017-11-20 19:43:44 +00:00
raw_cb.h sys: further adoption of SPDX licensing ID tags. 2017-11-20 19:43:44 +00:00
raw_usrreq.c sys: further adoption of SPDX licensing ID tags. 2017-11-20 19:43:44 +00:00
rndis.h rndis: Add LINK_SPEED_CHANGE status 2017-07-24 03:59:50 +00:00
route_var.h Renumber copyright clause 4 2017-02-28 23:42:47 +00:00
route.c Increment the route table gen count after a modify 2018-01-23 03:15:44 +00:00
route.h Reduce code duplication for inpcb route caching 2018-01-23 03:15:39 +00:00
rss_config.c rss: Remove never defined UDP_IPV4_EX 2017-10-11 06:08:01 +00:00
rss_config.h rss: Remove never defined UDP_IPV4_EX 2017-10-11 06:08:01 +00:00
rtsock.c Allow route change requests to not specify the gateway. 2018-02-21 19:13:23 +00:00
sff8436.h
sff8472.h ifconfig(8): Display extended compliance code string for SFP transceivers 2017-12-05 18:42:07 +00:00
slcompress.c sys: further adoption of SPDX licensing ID tags. 2017-11-20 19:43:44 +00:00
slcompress.h sys: further adoption of SPDX licensing ID tags. 2017-11-20 19:43:44 +00:00
toeplitz.c
toeplitz.h
vnet.c sys: general adoption of SPDX licensing ID tags. 2017-11-27 15:23:17 +00:00
vnet.h sys: general adoption of SPDX licensing ID tags. 2017-11-27 15:23:17 +00:00