Ahmed S. Darwish e88add19f6 net: xfrm: Localize sequence counter per network namespace ... A sequence counter write section must be serialized or its internal state can get corrupted. The "xfrm_state_hash_generation" seqcount is global, but its write serialization lock (net->xfrm.xfrm_state_lock) is instantiated per network namespace. The write protection is thus insufficient. To provide full protection, localize the sequence counter per network namespace instead. This should be safe as both the seqcount read and write sections access data exclusively within the network namespace. It also lays the foundation for transforming "xfrm_state_hash_generation" data type from seqcount_t to seqcount_LOCKNAME_t in further commits. Fixes: b65e3d7be0 ("xfrm: state: add sequence count to detect hash resizes") Signed-off-by: Ahmed S. Darwish <a.darwish@linutronix.de> Signed-off-by: Steffen Klassert <steffen.klassert@secunet.com>		2021-03-22 07:35:42 +01:00
..
bpf.h	bpf, netns: Keep a list of attached bpf_link's	2020-06-30 10:45:08 -07:00
can.h	can: remove obsolete version strings	2020-10-12 10:06:39 +02:00
conntrack.h	netfilter: conntrack: limit sysctl setting for boolean options	2019-04-30 14:18:56 +02:00
core.h	sock: Hide unused variable when !CONFIG_PROC_FS.	2017-12-19 09:58:14 -05:00
dccp.h	License cleanup: add SPDX GPL-2.0 license identifier to files with no license	2017-11-02 11:10:55 +01:00
generic.h	License cleanup: add SPDX GPL-2.0 license identifier to files with no license	2017-11-02 11:10:55 +01:00
hash.h	netns: provide pure entropy for net_hash_mix()	2019-03-28 17:00:45 -07:00
ieee802154_6lowpan.h	net: dynamically allocate fqdir structures	2019-05-26 14:08:05 -07:00
ipv4.h	net: ipv4: Emit notification when fib hardware flags are changed	2021-02-02 17:45:59 -08:00
ipv6.h	net: ipv6: Emit notification when fib hardware flags are changed	2021-02-02 17:45:59 -08:00
mib.h	mptcp: add and use MIB counter infrastructure	2020-03-29 22:14:49 -07:00
mpls.h	License cleanup: add SPDX GPL-2.0 license identifier to files with no license	2017-11-02 11:10:55 +01:00
netfilter.h	netfilter: don't allocate space for arp/bridge hooks unless needed	2018-01-08 18:01:11 +01:00
nexthop.h	nexthop: Convert to blocking notification chain	2020-09-15 16:31:17 -07:00
nftables.h	netfilter: nf_tables: coalesce multiple notifications into one skbuff	2020-09-08 13:02:44 +02:00
packet.h	License cleanup: add SPDX GPL-2.0 license identifier to files with no license	2017-11-02 11:10:55 +01:00
sctp.h	sctp: add encap_port for netns sock asoc and transport	2020-10-30 15:24:06 -07:00
unix.h	License cleanup: add SPDX GPL-2.0 license identifier to files with no license	2017-11-02 11:10:55 +01:00
x_tables.h	License cleanup: add SPDX GPL-2.0 license identifier to files with no license	2017-11-02 11:10:55 +01:00
xdp.h	net: xsk: track AF_XDP sockets on a per-netns list	2019-01-25 01:50:03 +01:00
xfrm.h	net: xfrm: Localize sequence counter per network namespace	2021-03-22 07:35:42 +01:00