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eaa72dc474
linux/net/decnet
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Eric Dumazet eaa72dc474 neigh: increase queue_len_bytes to match wmem_default 
Florian reported UDP xmit drops that could be root caused to the
too small neigh limit.

Current limit is 64 KB, meaning that even a single UDP socket would hit
it, since its default sk_sndbuf comes from net.core.wmem_default
(~212992 bytes on 64bit arches).

Once ARP/ND resolution is in progress, we should allow a little more
packets to be queued, at least for one producer.

Once neigh arp_queue is filled, a rogue socket should hit its sk_sndbuf
limit and either block in sendmsg() or return -EAGAIN.

Signed-off-by: Eric Dumazet <edumazet@google.com>
Reported-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2017-08-29 16:10:50 -07:00
..
netfilter decnet: dn_rtmsg: Improve input length sanitization in dnrmg_receive_user_skb 2017-06-08 10:51:22 -04:00
af_decnet.c tcp: add TCPMemoryPressuresChrono counter 2017-06-08 11:26:19 -04:00
dn_dev.c rtnetlink: make rtnl_register accept a flags parameter 2017-08-09 16:57:38 -07:00
dn_fib.c rtnetlink: make rtnl_register accept a flags parameter 2017-08-09 16:57:38 -07:00
dn_neigh.c neigh: increase queue_len_bytes to match wmem_default 2017-08-29 16:10:50 -07:00
dn_nsp_in.c netfilter: Pass net into okfn 2015-09-17 17:18:37 -07:00
dn_nsp_out.c networking: add and use skb_put_u8() 2017-06-16 11:48:40 -04:00
dn_route.c rtnetlink: make rtnl_register accept a flags parameter 2017-08-09 16:57:38 -07:00
dn_rules.c net: ipv6: use common fib_default_rule_pref 2015-09-09 14:19:50 -07:00
dn_table.c Replace <asm/uaccess.h> with <linux/uaccess.h> globally 2016-12-24 11:46:01 -08:00
dn_timer.c decnet: Use time_after_eq 2014-08-22 12:23:11 -07:00
Kconfig net/decnet: remove depends on CONFIG_EXPERIMENTAL 2013-01-11 11:39:34 -08:00
Makefile
README
sysctl_net_decnet.c Replace <asm/uaccess.h> with <linux/uaccess.h> globally 2016-12-24 11:46:01 -08:00
TODO

README 

                       Linux DECnet Project
                      ======================

The documentation for this kernel subsystem is available in the
Documentation/networking subdirectory of this distribution and also
on line at http://www.chygwyn.com/DECnet/

Steve Whitehouse <SteveW@ACM.org>