*p_filter_chain is rcu-dereferenced on reader path. So here in writer,
property assign the pointer.
Fixes: 2190d1d094 ("net: sched: introduce helpers to work with filter chains")
Signed-off-by: Jiri Pirko <jiri@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Steffen Klassert says:
====================
pull request (net): ipsec 2017-05-23
1) Fix wrong header offset for esp4 udpencap packets.
2) Fix a stack access out of bounds when creating a bundle
with sub policies. From Sabrina Dubroca.
3) Fix slab-out-of-bounds in pfkey due to an incorrect
sadb_x_sec_len calculation.
4) We checked the wrong feature flags when taking down
an interface with IPsec offload enabled.
Fix from Ilan Tayari.
5) Copy the anti replay sequence numbers when doing a state
migration, otherwise we get out of sync with the sequence
numbers. Fix from Antony Antony.
Please pull or let me know if there are problems.
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
The function names in batman-adv changed slightly in the past. But some of
the debug messages were not updated correctly and therefore some messages
were incorrect. To avoid this in the future, these kind of messages should
use __func__ to automatically print the correct function name.
Signed-off-by: Sven Eckelmann <sven@narfation.org>
Signed-off-by: Simon Wunderlich <sw@simonwunderlich.de>
A bit of text was put into a sequence by two separate function calls.
Print the same data by a single function call instead.
This issue was detected by using the Coccinelle software.
Signed-off-by: Markus Elfring <elfring@users.sourceforge.net>
Signed-off-by: Sven Eckelmann <sven@narfation.org>
Signed-off-by: Simon Wunderlich <sw@simonwunderlich.de>
Two single characters (line breaks) should be put into a sequence.
Thus use the corresponding function "seq_putc".
This issue was detected by using the Coccinelle software.
Signed-off-by: Markus Elfring <elfring@users.sourceforge.net>
Signed-off-by: Sven Eckelmann <sven@narfation.org>
Signed-off-by: Simon Wunderlich <sw@simonwunderlich.de>
With this patch the maximum fragment size is reduced from 1400 to 1280
bytes.
Fragmentation v2 correctly uses the smaller of 1400 and the interface
MTU, thus generally supporting interfaces with an MTU < 1400 bytes, too.
However, currently "Fragmentation v2" does not support re-fragmentation.
Which means that once a packet is split into two packets of 1400 + x
bytes for instance and the next hop provides an interface with an even
smaller MTU of 1280 bytes, then the larger fragment is lost.
A maximum fragment size of 1280 bytes is a safer option as this is the
minimum MTU required by IPv6, making interfaces with an MTU < 1280
rather exotic.
Regarding performance, this should have no negative impact on unicast
traffic: Having some more bytes in the smaller and some less in the
larger does not change the sum of both fragments.
Concerning TT, choosing 1280 bytes fragments might result in more TT
messages than necessary when a large network is bridged into batman-adv.
However, the TT overhead in general is marginal due to its reactive
nature, therefore such a performance impact on TT should not be
noticeable for a user.
Cc: Matthias Schiffer <mschiffer@universe-factory.net>
[linus.luessing@c0d3.blue: Added commit message]
Signed-off-by: Linus Lüssing <linus.luessing@c0d3.blue>
Signed-off-by: Sven Eckelmann <sven@narfation.org>
Signed-off-by: Simon Wunderlich <sw@simonwunderlich.de>
Add two new DSA_NOTIFIER_VLAN_ADD and DSA_NOTIFIER_VLAN_DEL events to
notify not only a single switch, but all switches of a the fabric when
an VLAN entry is added or removed.
For the moment, keep the current behavior and ignore other switches.
Signed-off-by: Vivien Didelot <vivien.didelot@savoirfairelinux.com>
Reviewed-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Add two new DSA_NOTIFIER_MDB_ADD and DSA_NOTIFIER_MDB_DEL events to
notify not only a single switch, but all switches of a the fabric when
an MDB entry is added or removed.
For the moment, keep the current behavior and ignore other switches.
Signed-off-by: Vivien Didelot <vivien.didelot@savoirfairelinux.com>
Reviewed-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Add two new DSA_NOTIFIER_FDB_ADD and DSA_NOTIFIER_FDB_DEL events to
notify not only a single switch, but all switches of a the fabric when
an FDB entry is added or removed.
For the moment, keep the current behavior and ignore other switches.
Signed-off-by: Vivien Didelot <vivien.didelot@savoirfairelinux.com>
Reviewed-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This patch keeps the port-wide ageing time handling code in
dsa_port_ageing_time, pushes the requested ageing time value in a new
switch fabric notification, and moves the switch-wide ageing time
handling code in dsa_switch_ageing_time.
This has the effect that now not only the switch that the target port
belongs to can be programmed, but all switches composing the switch
fabric. For the moment, keep the current behavior and ignore other
switches.
Signed-off-by: Vivien Didelot <vivien.didelot@savoirfairelinux.com>
Reviewed-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
The DSA notifier events and info structure definitions are not meant for
DSA drivers and users, but only used internally by the DSA core files.
Move them from the public net/dsa.h file to the private dsa_priv.h file.
Also use this opportunity to turn the events into an anonymous enum,
because we don't care about the values, and this will prevent future
conflicts when adding (and sorting) new events.
Signed-off-by: Vivien Didelot <vivien.didelot@savoirfairelinux.com>
Reviewed-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Change the scope of the switchdev bridge ageing time attribute setter
from the DSA slave device to the generic DSA port, so that the future
port-wide API can also be used for other port types, such as CPU and DSA
links.
Also ds->ports is now a contiguous array of dsa_port structures, thus
their addresses cannot be NULL. Remove the useless check in
dsa_fastest_ageing_time.
Signed-off-by: Vivien Didelot <vivien.didelot@savoirfairelinux.com>
Reviewed-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Change the scope of the switchdev VLAN filtering attribute setter from
the DSA slave device to the generic DSA port, so that the future
port-wide API can also be used for other port types, such as CPU and DSA
links.
Signed-off-by: Vivien Didelot <vivien.didelot@savoirfairelinux.com>
Reviewed-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Change the scope of the switchdev VLAN object handlers from the DSA
slave device to the generic DSA port, so that the future port-wide API
can also be used for other port types, such as CPU and DSA links.
Signed-off-by: Vivien Didelot <vivien.didelot@savoirfairelinux.com>
Reviewed-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Change the scope of the switchdev MDB object handlers from the DSA slave
device to the generic DSA port, so that the future port-wide API can
also be used for other port types, such as CPU and DSA links.
Signed-off-by: Vivien Didelot <vivien.didelot@savoirfairelinux.com>
Reviewed-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Change the scope of the switchdev FDB object handlers from the DSA slave
device to the generic DSA port, so that the future port-wide API can
also be used for other port types, such as CPU and DSA links.
Signed-off-by: Vivien Didelot <vivien.didelot@savoirfairelinux.com>
Reviewed-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Now that the bridge join and leave functions only deal with a DSA port,
change their scope from the DSA slave net_device to the DSA generic
dsa_port.
Signed-off-by: Vivien Didelot <vivien.didelot@savoirfairelinux.com>
Reviewed-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Change the scope of the fabric notification helper from the DSA slave to
the DSA port, since this is a DSA layer specific notion, that can be
used by non-slave ports (CPU and DSA).
Signed-off-by: Vivien Didelot <vivien.didelot@savoirfairelinux.com>
Reviewed-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Instead of having multiple STP state helpers scoping a slave device
supporting both the DSA logic and the switchdev binding, provide a
single dsa_port_set_state helper scoping a DSA port, as well as its
dsa_port_set_state_now wrapper which skips the prepare phase.
This allows us to better separate the DSA logic from the slave device
handling.
Signed-off-by: Vivien Didelot <vivien.didelot@savoirfairelinux.com>
Reviewed-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Pull networking fixes from David Miller:
"Mostly netfilter bug fixes in here, but we have some bits elsewhere as
well.
1) Don't do SNAT replies for non-NATed connections in IPVS, from
Julian Anastasov.
2) Don't delete conntrack helpers while they are still in use, from
Liping Zhang.
3) Fix zero padding in xtables's xt_data_to_user(), from Willem de
Bruijn.
4) Add proper RCU protection to nf_tables_dump_set() because we
cannot guarantee that we hold the NFNL_SUBSYS_NFTABLES lock. From
Liping Zhang.
5) Initialize rcv_mss in tcp_disconnect(), from Wei Wang.
6) smsc95xx devices can't handle IPV6 checksums fully, so don't
advertise support for offloading them. From Nisar Sayed.
7) Fix out-of-bounds access in __ip6_append_data(), from Eric
Dumazet.
8) Make atl2_probe() propagate the error code properly on failures,
from Alexey Khoroshilov.
9) arp_target[] in bond_check_params() is used uninitialized. This
got changes from a global static to a local variable, which is how
this mistake happened. Fix from Jarod Wilson.
10) Fix fallout from unnecessary NULL check removal in cls_matchall,
from Jiri Pirko. This is definitely brown paper bag territory..."
* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net: (26 commits)
net: sched: cls_matchall: fix null pointer dereference
vsock: use new wait API for vsock_stream_sendmsg()
bonding: fix randomly populated arp target array
net: Make IP alignment calulations clearer.
bonding: fix accounting of active ports in 3ad
net: atheros: atl2: don't return zero on failure path in atl2_probe()
ipv6: fix out of bound writes in __ip6_append_data()
bridge: start hello_timer when enabling KERNEL_STP in br_stp_start
smsc95xx: Support only IPv4 TCP/UDP csum offload
arp: always override existing neigh entries with gratuitous ARP
arp: postpone addr_type calculation to as late as possible
arp: decompose is_garp logic into a separate function
arp: fixed error in a comment
tcp: initialize rcv_mss to TCP_MIN_MSS instead of 0
netfilter: xtables: fix build failure from COMPAT_XT_ALIGN outside CONFIG_COMPAT
ebtables: arpreply: Add the standard target sanity check
netfilter: nf_tables: revisit chain/object refcounting from elements
netfilter: nf_tables: missing sanitization in data from userspace
netfilter: nf_tables: can't assume lock is acquired when dumping set elems
netfilter: synproxy: fix conntrackd interaction
...
Since the head is guaranteed by the check above to be null, the call_rcu
would explode. Remove the previously logically dead code that was made
logically very much alive and kicking.
Fixes: 985538eee0 ("net/sched: remove redundant null check on head")
Signed-off-by: Jiri Pirko <jiri@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
As reported by Michal, vsock_stream_sendmsg() could still
sleep at vsock_stream_has_space() after prepare_to_wait():
vsock_stream_has_space
vmci_transport_stream_has_space
vmci_qpair_produce_free_space
qp_lock
qp_acquire_queue_mutex
mutex_lock
Just switch to the new wait API like we did for commit
d9dc8b0f8b ("net: fix sleeping for sk_wait_event()").
Reported-by: Michal Kubecek <mkubecek@suse.cz>
Cc: Stefan Hajnoczi <stefanha@redhat.com>
Cc: Jorgen Hansen <jhansen@vmware.com>
Cc: "Michael S. Tsirkin" <mst@redhat.com>
Cc: Claudio Imbrenda <imbrenda@linux.vnet.ibm.com>
Signed-off-by: Cong Wang <xiyou.wangcong@gmail.com>
Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This patch fixes a typo in sockfd_lookup() in net/socket.c.
Signed-off-by: Rami Rosen <rami.rosen@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Add messages for non-obvious errors (e.g, no need to add text for malloc
failures or ENODEV failures). This mostly covers the annoying EINVAL errors
Some message strings violate the 80-columns but searchable strings need to
trump that rule.
Signed-off-by: David Ahern <dsahern@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Add messages for non-obvious errors (e.g, no need to add text for malloc
failures or ENODEV failures). This mostly covers the annoying EINVAL errors
Some message strings violate the 80-columns but searchable strings need to
trump that rule.
Signed-off-by: David Ahern <dsahern@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Andrey Konovalov and idaifish@gmail.com reported crashes caused by
one skb shared_info being overwritten from __ip6_append_data()
Andrey program lead to following state :
copy -4200 datalen 2000 fraglen 2040
maxfraglen 2040 alloclen 2048 transhdrlen 0 offset 0 fraggap 6200
The skb_copy_and_csum_bits(skb_prev, maxfraglen, data + transhdrlen,
fraggap, 0); is overwriting skb->head and skb_shared_info
Since we apparently detect this rare condition too late, move the
code earlier to even avoid allocating skb and risking crashes.
Once again, many thanks to Andrey and syzkaller team.
Signed-off-by: Eric Dumazet <edumazet@google.com>
Reported-by: Andrey Konovalov <andreyknvl@google.com>
Tested-by: Andrey Konovalov <andreyknvl@google.com>
Reported-by: <idaifish@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Resolves warnings:
net/ipv6/esp6.c: In function ‘esp_ssg_unref’:
net/ipv6/esp6.c:121:10: warning: variable ‘seqhi’ set but not used [-Wunused-but-set-variable]
net/ipv6/esp6.c: In function ‘esp6_output_head’:
net/ipv6/esp6.c:227:21: warning: variable ‘esph’ set but not used [-Wunused-but-set-variable]
Signed-off-by: Stephen Hemminger <sthemmin@microsoft.com>
Signed-off-by: Steffen Klassert <steffen.klassert@secunet.com>
TCP_USER_TIMEOUT is still converted to jiffies value in
icsk_user_timeout
So we need to make a conversion for the cases HZ != 1000
Fixes: 9a568de481 ("tcp: switch TCP TS option (RFC 7323) to 1ms clock")
Signed-off-by: Eric Dumazet <edumazet@google.com>
Acked-by: Soheil Hassas Yeganeh <soheil@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
THe seg6_pernet_data variable was set but never used.
Signed-off-by: Stephen Hemminger <sthemmin@microsoft.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
The build header functions are not used by any other code.
net/ipv6/fou6.c:36:5: warning: no previous prototype for ‘fou6_build_header’ [-Wmissing-prototypes]
net/ipv6/fou6.c:54:5: warning: no previous prototype for ‘gue6_build_header’ [-Wmissing-prototypes]
Need to do some code rearranging to satisfy different Kconfig possiblities.
Signed-off-by: Stephen Hemminger <sthemmin@microsoft.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
The TCP New Vegas congestion control was exporting an internal
function tcpnv_get_info which is not used by any other in tree
kernel code. Make it static.
Signed-off-by: Stephen Hemminger <sthemmin@microsoft.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
The prototype for inet_rcv_saddr_equal was not being included.
Signed-off-by: Stephen Hemminger <sthemmin@microsoft.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This warning:
net/ipv6/ila/ila_lwt.c: In function ‘ila_output’:
net/ipv6/ila/ila_lwt.c:42:6: warning: variable ‘err’ set but not used [-Wunused-but-set-variable]
It looks like the code attempts to set propagate different error
values, but always returned -EINVAL.
Compile tested only. Needs review by original author.
Signed-off-by: Stephen Hemminger <sthemmin@microsoft.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Found by reviewing the warning about unused policy table.
The code implies that it meant to check for size, but since
it unrolled the loop for attribute validation that is never used.
Instead do explicit check for attribute.
Compile tested only. Needs review by original author.
Signed-off-by: Stephen Hemminger <sthemmin@microsoft.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Add SOF_TIMESTAMPING_OPT_TX_SWHW option to allow an outgoing packet to
be looped to the socket's error queue with a software timestamp even
when a hardware transmit timestamp is expected to be provided by the
driver.
Applications using this option will receive two separate messages from
the error queue, one with a software timestamp and the other with a
hardware timestamp. As the hardware timestamp is saved to the shared skb
info, which may happen before the first message with software timestamp
is received by the application, the hardware timestamp is copied to the
SCM_TIMESTAMPING control message only when the skb has no software
timestamp or it is an incoming packet.
While changing sw_tx_timestamp(), inline it in skb_tx_timestamp() as
there are no other users.
CC: Richard Cochran <richardcochran@gmail.com>
CC: Willem de Bruijn <willemb@google.com>
Signed-off-by: Miroslav Lichvar <mlichvar@redhat.com>
Acked-by: Willem de Bruijn <willemb@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
