linux-stable/net/ipv6
Maciej Żenczykowski 048c796beb ipv6: adjust ndisc_is_useropt() to also return true for PIO
The upcoming (and nearly finalized):
  https://datatracker.ietf.org/doc/draft-collink-6man-pio-pflag/
will update the IPv6 RA to include a new flag in the PIO field,
which will serve as a hint to perform DHCPv6-PD.

As we don't want DHCPv6 related logic inside the kernel, this piece of
information needs to be exposed to userspace.  The simplest option is to
simply expose the entire PIO through the already existing mechanism.

Even without this new flag, the already existing PIO R (router address)
flag (from RFC6275) cannot AFAICT be handled entirely in kernel,
and provides useful information that should be exposed to userspace
(the router's global address, for use by Mobile IPv6).

Also cc'ing stable@ for inclusion in LTS, as while technically this is
not quite a bugfix, and instead more of a feature, it is absolutely
trivial and the alternative is manually cherrypicking into all Android
Common Kernel trees - and I know Greg will ask for it to be sent in via
LTS instead...

Cc: Jen Linkova <furry@google.com>
Cc: Lorenzo Colitti <lorenzo@google.com>
Cc: David Ahern <dsahern@gmail.com>
Cc: YOSHIFUJI Hideaki / 吉藤英明 <yoshfuji@linux-ipv6.org>
Cc: stable@vger.kernel.org
Signed-off-by: Maciej Żenczykowski <maze@google.com>
Link: https://lore.kernel.org/r/20230807102533.1147559-1-maze@google.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2023-08-09 15:36:12 -07:00
..
ila
netfilter Revert "net: Remove low_thresh in ip defrag" 2023-05-16 20:46:30 -07:00
addrconf_core.c
addrconf.c ipv6 addrconf: fix bug where deleting a mngtmpaddr can create a new temporary address 2023-07-24 15:51:21 -07:00
addrlabel.c
af_inet6.c sock: Remove ->sendpage*() in favour of sendmsg(MSG_SPLICE_PAGES) 2023-06-24 15:50:13 -07:00
ah6.c
anycast.c
calipso.c
datagram.c
esp6_offload.c Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net 2023-06-22 18:40:38 -07:00
esp6.c
exthdrs_core.c ipv6: Fix out-of-bounds access in ipv6_find_tlv() 2023-05-24 08:43:39 +01:00
exthdrs_offload.c
exthdrs.c ipv6: exthdrs: Remove redundant skb_headlen() check in ip6_parse_tlv(). 2023-06-19 11:32:58 -07:00
fib6_notifier.c
fib6_rules.c
fou6.c
icmp.c icmp6: Fix null-ptr-deref of ip6_null_entry->rt6i_idev in icmp6_dev(). 2023-07-08 10:08:54 +01:00
inet6_connection_sock.c net: annotate lockless accesses to sk->sk_err_soft 2023-03-17 08:25:05 +00:00
inet6_hashtables.c
ioam6_iptunnel.c
ioam6.c
ip6_checksum.c
ip6_fib.c ipv6: remove nexthop_fib6_nh_bh() 2023-05-11 18:07:05 -07:00
ip6_flowlabel.c ipv6: flowlabel: do not disable BH where not needed 2023-03-21 21:32:18 -07:00
ip6_gre.c net:ipv6: check return value of pskb_trim() 2023-07-19 12:25:58 +01:00
ip6_icmp.c
ip6_input.c netfilter: keep conntrack reference until IPsecv6 policy checks are done 2023-03-22 21:50:23 +01:00
ip6_offload.c net: move gso declarations and functions to their own files 2023-06-10 00:11:41 -07:00
ip6_offload.h
ip6_output.c ip, ip6: Fix splice to raw and ping sockets 2023-06-16 11:45:16 -07:00
ip6_tunnel.c
ip6_udp_tunnel.c
ip6_vti.c
ip6mr.c ip6mr: Fix skb_under_panic in ip6mr_cache_report() 2023-08-02 10:35:21 +01:00
ipcomp6.c
ipv6_sockglue.c net/ipv6: Initialise msg_control_is_user 2023-04-14 11:09:27 +01:00
Kconfig
Makefile
mcast_snoop.c
mcast.c ipv6: constify inet6_mc_check() 2023-03-17 08:56:37 +00:00
mip6.c
ndisc.c ipv6: adjust ndisc_is_useropt() to also return true for PIO 2023-08-09 15:36:12 -07:00
netfilter.c
output_core.c
ping.c net: annotate data-races around sk->sk_mark 2023-07-29 18:13:41 +01:00
proc.c
protocol.c
raw.c net: annotate data-races around sk->sk_priority 2023-07-29 18:13:41 +01:00
reassembly.c Revert "net: Remove low_thresh in ip defrag" 2023-05-16 20:46:30 -07:00
route.c net: annotate data-races around sk->sk_mark 2023-07-29 18:13:41 +01:00
rpl_iptunnel.c
rpl.c ipv6: rpl: Remove pskb(_may)?_pull() in ipv6_rpl_srh_rcv(). 2023-06-19 11:32:58 -07:00
seg6_hmac.c
seg6_iptunnel.c seg6: Cleanup duplicates of skb_dst_drop calls 2023-05-17 09:05:47 +01:00
seg6_local.c
seg6.c
sit.c sit: update dev->needed_headroom in ipip6_tunnel_bind_dev() 2023-04-28 09:48:14 +01:00
syncookies.c
sysctl_net_ipv6.c
tcp_ipv6.c net: annotate data-races around sk->sk_priority 2023-07-29 18:13:41 +01:00
tcpv6_offload.c net: Make gro complete function to return void 2023-05-31 09:50:17 +01:00
tunnel6.c
udp_impl.h
udp_offload.c net: gro: fix misuse of CB in udp socket lookup 2023-07-29 17:10:27 +01:00
udp.c net: annotate data-races around sk->sk_mark 2023-07-29 18:13:41 +01:00
udplite.c udplite: Print deprecation notice. 2023-06-15 15:08:58 -07:00
xfrm6_input.c xfrm: fix inbound ipv4/udp/esp packets to UDPv6 dualstack sockets 2023-06-09 08:16:34 +02:00
xfrm6_output.c
xfrm6_policy.c net: dst: fix missing initialization of rt_uncached 2023-04-21 20:26:56 -07:00
xfrm6_protocol.c
xfrm6_state.c
xfrm6_tunnel.c