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e6175a2ed1f18bf2f649625bf725e07adcfa6a28
linux/include/net
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Eyal Birger e6175a2ed1 xfrm: fix "disable_policy" flag use when arriving from different devices 
In IPv4 setting the "disable_policy" flag on a device means no policy
should be enforced for traffic originating from the device. This was
implemented by seting the DST_NOPOLICY flag in the dst based on the
originating device.

However, dsts are cached in nexthops regardless of the originating
devices, in which case, the DST_NOPOLICY flag value may be incorrect.

Consider the following setup:

                     +------------------------------+
                     | ROUTER                       |
  +-------------+    | +-----------------+          |
  | ipsec src   |----|-|ipsec0           |          |
  +-------------+    | |disable_policy=0 |   +----+ |
                     | +-----------------+   |eth1|-|-----
  +-------------+    | +-----------------+   +----+ |
  | noipsec src |----|-|eth0             |          |
  +-------------+    | |disable_policy=1 |          |
                     | +-----------------+          |
                     +------------------------------+

Where ROUTER has a default route towards eth1.

dst entries for traffic arriving from eth0 would have DST_NOPOLICY
and would be cached and therefore can be reused by traffic originating
from ipsec0, skipping policy check.

Fix by setting a IPSKB_NOPOLICY flag in IPCB and observing it instead
of the DST in IN/FWD IPv4 policy checks.

Fixes: 1da177e4c3 ("Linux-2.6.12-rc2")
Reported-by: Shmulik Ladkani <shmulik.ladkani@gmail.com>
Signed-off-by: Eyal Birger <eyal.birger@gmail.com>
Signed-off-by: Steffen Klassert <steffen.klassert@secunet.com>
2022-05-16 09:31:26 +02:00
..
9p
net/p9: load default transports
2022-01-10 10:00:09 +09:00
bluetooth
Bluetooth: hci_sync: Cleanup hci_conn if it cannot be aborted
2022-04-26 20:10:51 +02:00
caif
net: remove the caif_hsi driver
2021-07-01 13:19:48 -07:00
iucv
net/af_iucv: Use struct_group() to zero struct iucv_sock region
2021-11-19 11:52:25 +00:00
netfilter
Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net
2022-03-23 10:53:49 -07:00
netns
ipv6: make ip6_rt_gc_expire an atomic_t
2022-04-15 14:28:50 -07:00
nfc
NFC: add NCI_UNREG flag to eliminate the race
2021-11-17 20:17:05 -08:00
phonet
…
sctp
Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net
2022-01-05 14:36:10 -08:00
tc_act
net/sched: fix incorrect vlan_push_eth dest field
2022-03-23 10:32:48 -07:00
6lowpan.h
6lowpan: Replace zero-length array with flexible-array member
2020-02-28 14:51:30 +01:00
act_api.h
flow_offload: validate flags of filter and actions
2021-12-19 14:08:48 +00:00
addrconf.h
net: Add new protocol attribute to IP addresses
2022-02-18 21:20:06 -08:00
af_ieee802154.h
…
af_rxrpc.h
afs: Don't truncate iter during data fetch
2021-04-23 10:17:26 +01:00
af_unix.h
af_unix: Replace the big lock with small locks.
2021-11-26 18:01:58 -08:00
af_vsock.h
vsock: each transport cycles only on its own sockets
2022-03-11 23:14:19 -08:00
ah.h
…
amt.h
amt: add mld report message handler
2021-11-01 13:36:09 +00:00
arp.h
ipv4: Invalidate neighbour for broadcast address upon address addition
2022-02-21 11:44:30 +00:00
atmclip.h
…
ax25.h
Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net
2022-02-03 17:36:16 -08:00
ax88796.h
ax88796: export ax_NS8390_init() hook
2021-08-03 13:05:25 +01:00
bareudp.h
bareudp: Move definition of struct bareudp_conf to bareudp.c
2021-12-13 12:34:09 +00:00
bond_3ad.h
bonding: fix data-races around agg_select_timer
2022-02-15 14:35:18 +00:00
bond_alb.h
bonding: make tx_rebalance_counter an atomic
2021-12-03 14:16:48 +00:00
bond_options.h
bonding: add new option ns_ip6_target
2022-02-21 12:13:45 +00:00
bonding.h
net: add per-cpu storage and net->core_stats
2022-03-11 23:17:24 -08:00
bpf_sk_storage.h
bpf: struct sock is declared twice in bpf_sk_storage header
2021-03-26 17:43:55 +01:00
busy_poll.h
tcp: fix another uninit-value (sk_rx_queue_mapping)
2021-12-03 14:15:49 +00:00
calipso.h
…
cfg80211-wext.h
…
cfg80211.h
cfg80211: Support configuration of station EHT capabilities
2022-02-16 15:43:25 +01:00
cfg802154.h
net: ieee802154: Provide a kdoc to the address structure
2022-02-01 21:03:48 +01:00
checksum.h
powerpc/net: Implement powerpc specific csum_shift() to remove branch
2022-03-11 10:57:22 +00:00
cipso_ipv4.h
cipso: Remove unused inline functions
2020-07-15 07:45:24 -07:00
cls_cgroup.h
bpf: Allow to retrieve cgroup v1 classid from v2 hooks
2020-03-27 19:40:38 -07:00
codel_impl.h
codel: remove unnecessary sock.h include
2021-12-22 15:03:47 -08:00
codel_qdisc.h
codel: remove unnecessary pkt_sched.h include
2021-12-22 15:03:51 -08:00
codel.h
codel: remove unnecessary pkt_sched.h include
2021-12-22 15:03:51 -08:00
compat.h
net/ipv4/ipv6: Replace one-element arraya with flexible-array members
2021-08-05 11:46:42 +01:00
datalink.h
llc/snap: constify dev_addr passing
2021-10-13 09:40:46 -07:00
dcbevent.h
…
dcbnl.h
…
devlink.h
devlink: add explicitly locked flavor of the rate node APIs
2022-03-21 14:11:38 +00:00
dn_dev.h
…
dn_fib.h
net: convert fib_treeref from int to refcount_t
2021-07-30 15:33:24 +02:00
dn_neigh.h
…
dn_nsp.h
…
dn_route.h
…
dn.h
decnet: constify dev_addr passing
2021-10-13 09:40:46 -07:00
dsa.h
net: dsa: pass extack to dsa_switch_ops :: port_mirror_add()
2022-03-17 17:42:47 -07:00
dsfield.h
ipv6: Annotate bitwise IPv6 dsfield pointer cast
2019-12-16 16:09:44 -08:00
dst_cache.h
wireguard: device: reset peer src endpoint when netns exits
2021-11-29 19:50:45 -08:00
dst_metadata.h
net: fix a memleak when uncloning an skb dst and its metadata
2022-02-09 11:41:47 +00:00
dst_ops.h
net/dst: use a smaller percpu_counter batch for dst entries accounting
2020-05-08 21:33:33 -07:00
dst.h
net: dst: add net device refcount tracking to dst_entry
2021-12-06 16:05:10 -08:00
erspan.h
erspan: Add type I version 0 support.
2020-05-05 13:23:29 -07:00
esp.h
esp: limit skb_page_frag_refill use to a single page
2022-04-13 10:16:11 +02:00
espintcp.h
xfrm: espintcp: save and call old ->sk_destruct
2020-04-20 07:34:16 +02:00
ethoc.h
…
failover.h
net: failover: add net device refcount tracker
2021-12-06 16:06:02 -08:00
fib_notifier.h
ipv6: Remove old route notifications and convert listeners
2019-12-24 22:37:30 -08:00
fib_rules.h
fib: expand fib_rule_policy
2021-12-16 07:18:35 -08:00
firewire.h
…
flow_dissector.h
net/sched: flower: fix parsing of ethertype following VLAN header
2022-04-08 12:07:37 +01:00
flow_offload.h
net/sched: add vlan push_eth and pop_eth action to the hardware IR
2022-03-16 19:59:36 -07:00
flow.h
net: Add l3mdev index to flow struct and avoid oif reset for port devices
2022-03-15 20:20:02 -07:00
fou.h
…
fq_impl.h
net/fq_impl: do not maintain a backlog-sorted list of flows
2021-01-21 13:33:45 +01:00
fq.h
net/fq_impl: do not maintain a backlog-sorted list of flows
2021-01-21 13:33:45 +01:00
garp.h
treewide: Use sizeof_field() macro
2019-12-09 10:36:44 -08:00
gen_stats.h
net: sched: Remove Qdisc::running sequence counter
2021-10-18 12:54:41 +01:00
genetlink.h
mptcp: avoid lock_fast usage in accept path
2021-02-12 16:31:46 -08:00
geneve.h
…
gre.h
ip_gre: add csum offload support for gre header
2021-01-29 20:39:14 -08:00
gro_cells.h
…
gro.h
net: gro: Fix a 'directive in macro's argument list' sparse warning
2022-02-18 11:00:25 +00:00
gtp.h
gtp: Add support for checking GTP device type
2022-03-11 08:28:27 -08:00
gue.h
GUE: Fix a typo
2020-06-22 21:12:44 -07:00
hwbm.h
…
icmp.h
ipv6: ICMPV6: add response to ICMPV6 RFC 8335 PROBE messages
2021-06-28 14:29:45 -07:00
ieee80211_radiotap.h
ieee80211: radiotap: fix -Wcast-qual warnings
2022-02-04 16:25:21 +01:00
ieee802154_netdev.h
…
if_inet6.h
net: Add new protocol attribute to IP addresses
2022-02-18 21:20:06 -08:00
ife.h
…
ila.h
…
inet6_connection_sock.h
…
inet6_hashtables.h
net: Track socket refcounts in skb_steal_sock()
2020-03-30 13:45:04 -07:00
inet_common.h
bpf: Allow rewriting to ports under ip_unprivileged_port_start
2021-01-27 18:18:15 -08:00
inet_connection_sock.h
tcp: Use BPF timeout setting for SYN ACK RTO
2022-02-02 14:45:18 +00:00
inet_dscp.h
ipv6: Define dscp_t and stop taking ECN bits into account in fib6-rules
2022-02-07 20:12:45 -08:00
inet_ecn.h
net: add skb_get_dsfield() helper
2021-10-15 11:33:08 +01:00
inet_frag.h
net: ip: Handle delivery_time in ip defrag
2022-03-03 14:38:48 +00:00
inet_hashtables.h
tcp: seq_file: Replace listening_hash with lhash2
2021-07-23 16:44:57 -07:00
inet_sock.h
ipv4/raw: support binding to nonlocal addresses
2021-11-17 20:21:52 -08:00
inet_timewait_sock.h
tcp/dccp: get rid of inet_twsk_purge()
2022-01-25 11:25:21 +00:00
inetpeer.h
…
ioam6.h
treewide: Replace zero-length arrays with flexible-array members
2022-02-17 07:00:39 -06:00
ip6_checksum.h
net: move gro definitions to include/net/gro.h
2021-11-16 13:16:54 +00:00
ip6_fib.h
Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net
2022-02-17 11:44:20 -08:00
ip6_route.h
ipv6: ip6_skb_dst_mtu() cleanups
2021-11-19 20:09:55 -08:00
ip6_tunnel.h
ip_gre, ip6_gre: Fix race condition on o_seqno in collect_md mode
2022-04-25 11:40:45 +01:00
ip_fib.h
ipv4: Reject routes specifying ECN bits in rtm_tos
2022-02-07 20:12:46 -08:00
ip_tunnels.h
ip_gre, ip6_gre: Fix race condition on o_seqno in collect_md mode
2022-04-25 11:40:45 +01:00
ip_vs.h
ipvs: add sysctl_run_estimation to support disable estimation
2021-10-07 19:52:58 +02:00
ip.h
xfrm: fix "disable_policy" flag use when arriving from different devices
2022-05-16 09:31:26 +02:00
ipcomp.h
…
ipconfig.h
…
ipv6_frag.h
net: don't include ndisc.h from ipv6.h
2022-02-04 14:15:11 -08:00
ipv6_stubs.h
net: ipv6: add fib6_nh_release_dsts stub
2021-11-22 15:44:49 +00:00
ipv6.h
Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net
2022-02-17 11:44:20 -08:00
iw_handler.h
…
kcm.h
…
l3mdev.h
l3mdev: add infrastructure for table to VRF mapping
2020-06-20 17:22:22 -07:00
lag.h
…
lapb.h
net: lapb: Make "lapb_t1timer_running" able to detect an already running timer
2021-03-23 14:14:50 -07:00
lib80211.h
…
llc_c_ac.h
…
llc_c_ev.h
…
llc_c_st.h
…
llc_conn.h
llc: add net device refcount tracker
2021-12-07 20:44:59 -08:00
llc_if.h
llc/snap: constify dev_addr passing
2021-10-13 09:40:46 -07:00
llc_pdu.h
net: llc: fix skb_over_panic
2021-07-27 13:05:56 +01:00
llc_s_ac.h
…
llc_s_ev.h
…
llc_s_st.h
…
llc_sap.h
…
llc.h
llc: fix out-of-bound array index in llc_sk_dev_hash()
2021-11-07 19:25:29 +00:00
lwtunnel.h
netfilter: add netfilter hooks to SRv6 data plane
2021-08-30 01:51:36 +02:00
mac80211.h
mac80211: MBSSID beacon handling in AP mode
2022-03-15 11:36:26 +01:00
mac802154.h
net: mac802154: Explain the use of ieee802154_wake/stop_queue()
2022-01-28 11:23:41 +01:00
macsec.h
net: macsec: fix the length used to copy the key for offloading
2021-06-24 12:41:12 -07:00
mctp.h
mctp: Use output netdev to allocate skb headroom
2022-04-01 12:04:15 +01:00
mctpdevice.h
mctp: Pass flow data & flow release events to drivers
2021-10-29 13:23:51 +01:00
mip6.h
net: mip6: Replace zero-length array with flexible-array member
2020-03-02 11:16:27 -08:00
mld.h
mld: add new workqueues for process mld events
2021-03-26 15:14:56 -07:00
mpls_iptunnel.h
net: mpls: Replace zero-length array with flexible-array member
2020-02-28 12:08:37 -08:00
mpls.h
net: Make mpls_entry_encode() available for generic users
2020-05-29 21:20:20 -07:00
mptcp.h
mptcp: mptcp_parse_option is no longer exported
2022-02-16 20:52:04 -08:00
mrp.h
treewide: Use sizeof_field() macro
2019-12-09 10:36:44 -08:00
ncsi.h
…
ndisc.h
Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net
2022-03-03 11:55:12 -08:00
neighbour.h
net, neigh: Do not trigger immediate probes on NUD_FAILED from neigh_managed_work
2022-02-02 20:30:18 -08:00
net_failover.h
…
net_namespace.h
net: make net->dev_unreg_count atomic
2022-02-10 15:30:26 +00:00
net_ratelimit.h
…
net_trackers.h
net: add networking namespace refcount tracker
2021-12-10 06:38:26 -08:00
netevent.h
…
netlabel.h
…
netlink.h
net: netlink: add the case when nlh is NULL
2021-07-27 11:43:50 +01:00
netprio_cgroup.h
netprio: use css ID instead of cgroup ID
2019-11-12 08:18:03 -08:00
netrom.h
…
nexthop.h
net: ipv4: Fix rtnexthop len when RTA_FLOW is present
2021-09-24 14:07:10 +01:00
nl802154.h
net: ieee802154: handle iftypes as u32
2021-11-16 18:02:46 +01:00
nsh.h
…
p8022.h
…
page_pool.h
page_pool: Add function to batch and return stats
2022-03-03 09:55:28 +00:00
pie.h
pie: realign comment
2020-03-04 13:25:55 -08:00
ping.h
…
pkt_cls.h
net/sched: Enable tc skb ext allocation on chain miss only when needed
2022-02-05 10:12:53 +00:00
pkt_sched.h
net: sched: remove psched_tdiff_bounded()
2022-01-27 13:53:27 +00:00
pptp.h
…
protocol.h
net: Remove the member netns_ok
2021-05-17 15:29:35 -07:00
psample.h
psample: Add a fwd declaration for skbuff
2021-08-09 15:34:21 -07:00
psnap.h
…
raw.h
…
rawv6.h
…
red.h
sch_red: fix off-by-one checks in red_check_params()
2021-03-25 17:40:43 -07:00
regulatory.h
net/wireless: regulatory.h: drop duplicate word in comment
2020-07-31 09:24:23 +02:00
request_sock.h
tcp: Use BPF timeout setting for SYN ACK RTO
2022-02-02 14:45:18 +00:00
rose.h
rose: constify dev_addr passing
2021-10-13 09:40:45 -07:00
route.h
ipv4: remove sparse error in ip_neigh_gw4()
2022-01-27 08:38:33 -08:00
rpl.h
net: ipv6: Use struct_size() helper and kcalloc()
2020-06-23 20:27:09 -07:00
rsi_91x.h
…
rtnetlink.h
net: add extack arg for link ops
2021-08-04 10:01:26 +01:00
rtnh.h
…
sch_generic.h
net: sched: remove qdisc_qlen_cpu()
2022-01-27 13:53:27 +00:00
scm.h
fs: Move __scm_install_fd() to __receive_fd()
2020-07-13 11:03:44 -07:00
secure_seq.h
…
seg6_hmac.h
…
seg6_local.h
…
seg6.h
udp6: Use Segment Routing Header for dest address if present
2022-01-04 12:17:35 +00:00
selftests.h
net: selftest: fix build issue if INET is disabled
2021-04-28 14:06:45 -07:00
slhc_vj.h
…
smc.h
net/smc: introduce CHID callback for ISM devices
2020-09-28 15:19:03 -07:00
snmp.h
…
sock_reuseport.h
tcp: Add reuseport_migrate_sock() to select a new listener.
2021-06-15 18:01:05 +02:00
sock.h
Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net
2022-02-24 17:54:25 -08:00
Space.h
wan: remove sbni/granch driver
2021-08-03 13:05:26 +01:00
stp.h
…
strparser.h
bpf, sockmap: sk_skb data_end access incorrect when src_reg = dst_reg
2021-11-09 01:05:34 +01:00
switchdev.h
net: bridge: mst: Notify switchdev drivers of MST state changes
2022-03-17 16:49:58 -07:00
tcp_states.h
…
tcp.h
tcp: make sure treq->af_specific is initialized
2022-04-25 12:10:11 +01:00
timewait_sock.h
…
tipc.h
…
tls_toe.h
…
tls.h
net/tls: Provide {__,}tls_driver_ctx() unconditionally
2022-03-09 20:01:14 -08:00
transp_v6.h
tcp: move ipv4_specific to tcp include file
2020-06-23 20:10:15 -07:00
tso.h
net: tso: cache transport header length
2020-06-18 20:46:23 -07:00
tun_proto.h
…
udp_tunnel.h
udp: call udp_encap_enable for v6 sockets when enabling encap
2021-02-04 18:37:14 -08:00
udp.h
net: move gro definitions to include/net/gro.h
2021-11-16 13:16:54 +00:00
udplite.h
udplite: remove udplite_csum_outgoing()
2022-01-27 13:53:27 +00:00
vsock_addr.h
vsock: remove include/linux/vm_sockets.h file
2019-11-14 18:12:17 -08:00
vxlan.h
drivers: vxlan: vnifilter: per vni stats
2022-03-01 08:38:02 +00:00
wext.h
…
x25.h
net/x25: add new state X25_STATE_5
2019-12-09 10:28:43 -08:00
x25device.h
…
xdp_priv.h
xsk: Wipe out dead zero_copy_allocator declarations
2021-12-14 00:24:24 +01:00
xdp_sock_drv.h
i40e: xsk: Move tmp desc array from driver to pool
2022-01-27 17:25:32 +01:00
xdp_sock.h
net: Don't include filter.h from net/sock.h
2021-12-29 08:48:14 -08:00
xdp.h
net: veth: Account total xdp_frame len running ndo_xdp_xmit
2022-03-17 20:33:52 +01:00
xfrm.h
xfrm: fix "disable_policy" flag use when arriving from different devices
2022-05-16 09:31:26 +02:00
xsk_buff_pool.h
xsk: Fix possible crash when multiple sockets are created
2022-04-26 16:19:54 +02:00