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linux-stable/include/linux/netfilter
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Pablo Neira Ayuso ee92118355 netfilter: nfnetlink: nfnetlink_unicast() reports EAGAIN instead of ENOBUFS 
Frontend callback reports EAGAIN to nfnetlink to retry a command, this
is used to signal that module autoloading is required. Unfortunately,
nlmsg_unicast() reports EAGAIN in case the receiver socket buffer gets
full, so it enters a busy-loop.

This patch updates nfnetlink_unicast() to turn EAGAIN into ENOBUFS and
to use nlmsg_unicast(). Remove the flags field in nfnetlink_unicast()
since this is always MSG_DONTWAIT in the existing code which is exactly
what nlmsg_unicast() passes to netlink_unicast() as parameter.

Fixes: 96518518cc ("netfilter: add nftables")
Reported-by: Phil Sutter <phil@nwl.cc>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
2020-08-28 20:11:58 +02:00
..
ipset netfilter: Replace zero-length array with flexible-array member 2020-03-15 15:20:16 +01:00
nf_conntrack_amanda.h
nf_conntrack_common.h netfilter: conntrack: move code to linux/nf_conntrack_common.h. 2019-09-13 12:47:11 +02:00
nf_conntrack_dccp.h netfilter: remove "#ifdef __KERNEL__" guards from some headers. 2019-08-13 12:15:28 +02:00
nf_conntrack_ftp.h
nf_conntrack_h323.h netfilter: remove "#ifdef __KERNEL__" guards from some headers. 2019-08-13 12:15:28 +02:00
nf_conntrack_h323_asn1.h
nf_conntrack_h323_types.h netfilter: add include guard to nf_conntrack_h323_types.h 2019-08-19 13:59:57 +02:00
nf_conntrack_irc.h netfilter: remove "#ifdef __KERNEL__" guards from some headers. 2019-08-13 12:15:28 +02:00
nf_conntrack_pptp.h netfilter: nf_conntrack_pptp: fix compilation warning with W=1 build 2020-05-27 13:39:08 +02:00
nf_conntrack_proto_gre.h netfilter: remove "#ifdef __KERNEL__" guards from some headers. 2019-08-13 12:15:28 +02:00
nf_conntrack_sane.h netfilter: remove "#ifdef __KERNEL__" guards from some headers. 2019-08-13 12:15:28 +02:00
nf_conntrack_sctp.h netfilter: conntrack: allow sctp hearbeat after connection re-use 2020-08-20 14:13:49 +02:00
nf_conntrack_sip.h netfilter: remove "#ifdef __KERNEL__" guards from some headers. 2019-08-13 12:15:28 +02:00
nf_conntrack_snmp.h
nf_conntrack_tcp.h
nf_conntrack_tftp.h
nf_conntrack_zones_common.h
nfnetlink.h netfilter: nfnetlink: nfnetlink_unicast() reports EAGAIN instead of ENOBUFS 2020-08-28 20:11:58 +02:00
nfnetlink_acct.h
nfnetlink_osf.h
x_tables.h netfilter: switch xt_copy_counters to sockptr_t 2020-07-24 15:41:53 -07:00