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linux-stable/net/ipv6
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Gustavo A. R. Silva 6daf141401 netfilter: Replace zero-length array with flexible-array member 
The current codebase makes use of the zero-length array language
extension to the C90 standard, but the preferred mechanism to declare
variable-length types such as these ones is a flexible array member[1][2],
introduced in C99:

struct foo {
        int stuff;
        struct boo array[];
};

By making use of the mechanism above, we will get a compiler warning
in case the flexible array does not occur last in the structure, which
will help us prevent some kind of undefined behavior bugs from being
inadvertently introduced[3] to the codebase from now on.

Also, notice that, dynamic memory allocations won't be affected by
this change:

"Flexible array members have incomplete type, and so the sizeof operator
may not be applied. As a quirk of the original implementation of
zero-length arrays, sizeof evaluates to zero."[1]

Lastly, fix checkpatch.pl warning
WARNING: __aligned(size) is preferred over __attribute__((aligned(size)))
in net/bridge/netfilter/ebtables.c

This issue was found with the help of Coccinelle.

[1] https://gcc.gnu.org/onlinedocs/gcc/Zero-Length.html
[2] https://github.com/KSPP/linux/issues/21
[3] commit 7649773293 ("cxgb3/l2t: Fix undefined behaviour")

Signed-off-by: Gustavo A. R. Silva <gustavo@embeddedor.com>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
2020-03-15 15:20:16 +01:00
..
ila treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 152 2019-05-30 11:26:32 -07:00
netfilter netfilter: Replace zero-length array with flexible-array member 2020-03-15 15:20:16 +01:00
addrconf.c Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net 2020-03-12 22:34:48 -07:00
addrconf_core.c net: ipv6_stub: use ip6_dst_lookup_flow instead of ip6_dst_lookup 2019-12-04 12:27:13 -08:00
addrlabel.c netlink: make validation more configurable for future strictness 2019-04-27 17:07:21 -04:00
af_inet6.c net: ipv6_stub: use ip6_dst_lookup_flow instead of ip6_dst_lookup 2019-12-04 12:27:13 -08:00
ah6.c inet: Use fallthrough; 2020-03-12 15:55:00 -07:00
anycast.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 152 2019-05-30 11:26:32 -07:00
calipso.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 13 2019-05-21 11:28:45 +02:00
datagram.c net: ipv6: add net argument to ip6_dst_lookup_flow 2019-12-04 12:27:12 -08:00
esp6.c xfrm: remove get_mtu indirection from xfrm_type 2019-07-01 06:16:40 +02:00
esp6_offload.c xfrm: support output_mark for offload ESP packets 2020-01-15 12:18:35 +01:00
exthdrs.c inet: Use fallthrough; 2020-03-12 15:55:00 -07:00
exthdrs_core.c ipv6: remove printk 2019-07-27 14:23:48 -07:00
exthdrs_offload.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 152 2019-05-30 11:26:32 -07:00
fib6_notifier.c net: fib_notifier: propagate extack down to the notifier block callback 2019-10-04 11:10:56 -07:00
fib6_rules.c net: fib_notifier: propagate extack down to the notifier block callback 2019-10-04 11:10:56 -07:00
fou6.c treewide: Add SPDX license identifier for more missed files 2019-05-21 10:50:45 +02:00
icmp.c inet: Use fallthrough; 2020-03-12 15:55:00 -07:00
inet6_connection_sock.c net: add bool confirm_neigh parameter for dst_ops.update_pmtu 2019-12-24 22:28:54 -08:00
inet6_hashtables.c net: annotate accesses to sk->sk_incoming_cpu 2019-10-30 13:24:25 -07:00
ip6_checksum.c net: udp: fix handling of CHECKSUM_COMPLETE packets 2018-10-24 14:18:16 -07:00
ip6_fib.c inet: Use fallthrough; 2020-03-12 15:55:00 -07:00
ip6_flowlabel.c ipv6: fix static key imbalance in fl_create() 2019-07-11 14:43:25 -07:00
ip6_gre.c net: ip6_gre: Distribute switch variables for initialization 2020-02-20 10:00:19 -08:00
ip6_icmp.c icmp: introduce helper for nat'd source address in network device context 2020-02-13 14:19:00 -08:00
ip6_input.c ipv6: introduce and uses route look hints for list input. 2019-11-21 14:45:55 -08:00
ip6_offload.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 152 2019-05-30 11:26:32 -07:00
ip6_offload.h treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 152 2019-05-30 11:26:32 -07:00
ip6_output.c net: UDP tunnel encapsulation module for tunnelling different protocols like MPLS, IP, NSH etc. 2020-02-24 13:31:42 -08:00
ip6_tunnel.c net: ip6_gre: Distribute switch variables for initialization 2020-02-20 10:00:19 -08:00
ip6_udp_tunnel.c treewide: Add SPDX license identifier for more missed files 2019-05-21 10:50:45 +02:00
ip6_vti.c vti[6]: fix packet tx through bpf_redirect() 2020-01-14 08:55:38 +01:00
ip6mr.c inet: Use fallthrough; 2020-03-12 15:55:00 -07:00
ipcomp6.c xfrm: remove type and offload_type map from xfrm_state_afinfo 2019-06-06 08:34:50 +02:00
ipv6_sockglue.c ipv6: restrict IPV6_ADDRFORM operation 2020-02-26 20:20:58 -08:00
Kconfig treewide: Add SPDX license identifier - Makefile/Kconfig 2019-05-21 10:50:46 +02:00
Makefile xfrm: make xfrm modes builtin 2019-04-08 09:15:17 +02:00
mcast.c mld: fix memory leak in mld_del_delrec() 2019-08-28 14:47:35 -07:00
mcast_snoop.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 343 2019-06-05 17:37:07 +02:00
mip6.c xfrm: remove type and offload_type map from xfrm_state_afinfo 2019-06-06 08:34:50 +02:00
ndisc.c inet: Use fallthrough; 2020-03-12 15:55:00 -07:00
netfilter.c net: ensure correct skb->tstamp in various fragmenters 2019-10-18 10:02:37 -07:00
output_core.c treewide: Add SPDX license identifier for missed files 2019-05-21 10:50:45 +02:00
ping.c ipv6: Fix the link time qualifier of 'ping_v6_proc_exit_net()' 2019-09-12 11:20:33 +01:00
proc.c Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net 2019-06-07 11:00:14 -07:00
protocol.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 152 2019-05-30 11:26:32 -07:00
raw.c inet: Use fallthrough; 2020-03-12 15:55:00 -07:00
reassembly.c inet: frags: re-introduce skb coalescing for local delivery 2019-08-08 15:55:10 -07:00
route.c inet: Use fallthrough; 2020-03-12 15:55:00 -07:00
seg6.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 152 2019-05-30 11:26:32 -07:00
seg6_hmac.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 152 2019-05-30 11:26:32 -07:00
seg6_iptunnel.c Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net 2020-03-12 22:34:48 -07:00
seg6_local.c seg6: fix SRv6 L2 tunnels to use IANA-assigned protocol number 2020-03-11 23:49:30 -07:00
sit.c sit: do not confirm neighbor when do pmtu update 2019-12-24 22:28:55 -08:00
syncookies.c mptcp: handle tcp fallback when using syn cookies 2020-01-29 17:45:20 +01:00
sysctl_net_ipv6.c ipv6: Use math to point per net sysctls into the appropriate struct net 2020-03-03 14:50:08 -08:00
tcp_ipv6.c inet: Use fallthrough; 2020-03-12 15:55:00 -07:00
tcpv6_offload.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 152 2019-05-30 11:26:32 -07:00
tunnel6.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 13 2019-05-21 11:28:45 +02:00
udp.c net: udp: use skb_list_walk_safe helper for gso segments 2020-01-14 11:48:41 -08:00
udp_impl.h udp6: add missing rehash callback to udplite 2019-01-17 15:01:08 -08:00
udp_offload.c udp: Support UDP fraglist GRO/GSO. 2020-01-27 11:00:21 +01:00
udplite.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 152 2019-05-30 11:26:32 -07:00
xfrm6_input.c net: use skb_sec_path helper in more places 2018-12-19 11:21:37 -08:00
xfrm6_output.c netfilter: Support iif matches in POSTROUTING 2019-11-15 23:44:48 +01:00
xfrm6_policy.c net: add bool confirm_neigh parameter for dst_ops.update_pmtu 2019-12-24 22:28:54 -08:00
xfrm6_protocol.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 152 2019-05-30 11:26:32 -07:00
xfrm6_state.c xfrm: remove eth_proto value from xfrm_state_afinfo 2019-06-06 08:34:50 +02:00
xfrm6_tunnel.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 13 2019-05-21 11:28:45 +02:00