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| author |   Andreas Roeseler <andreas.a.roeseler@gmail.com> | 2021-06-26 09:07:46 -0500 |
|---|---|---|
| committer |   David S. Miller <davem@davemloft.net> | 2021-06-28 14:29:45 -0700 |
| commit | 1fd07f33c3ea2b4aa77426f13e8cb91d4f55af8f (patch) | |
| tree | 6c50937b3c4c2105bffac3ec1bdb205b1e966da7 /include/net/icmp.h | |
| parent | net: sparx5: fix error return code in sparx5_register_notifier_blocks() (diff) | |
| download | linux-dev-1fd07f33c3ea2b4aa77426f13e8cb91d4f55af8f.tar.xz linux-dev-1fd07f33c3ea2b4aa77426f13e8cb91d4f55af8f.zip | |
ipv6: ICMPV6: add response to ICMPV6 RFC 8335 PROBE messages
This patch builds off of commit 2b246b2569cd2ac6ff700d0dce56b8bae29b1842
and adds functionality to respond to ICMPV6 PROBE requests.
Add icmp_build_probe function to construct PROBE requests for both
ICMPV4 and ICMPV6.
Modify icmpv6_rcv to detect ICMPV6 PROBE messages and call the
icmpv6_echo_reply handler.
Modify icmpv6_echo_reply to build a PROBE response message based on the
queried interface.
This patch has been tested using a branch of the iputils git repo which can
be found here: https://github.com/Juniper-Clinic-2020/iputils/tree/probe-request
Signed-off-by: Andreas Roeseler <andreas.a.roeseler@gmail.com>
Reviewed-by: Willem de Bruijn <willemb@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'include/net/icmp.h')
| -rw-r--r-- | include/net/icmp.h | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/include/net/icmp.h b/include/net/icmp.h index fd84adc47963..caddf4a59ad1 100644 --- a/include/net/icmp.h +++ b/include/net/icmp.h @@ -57,5 +57,6 @@ int icmp_rcv(struct sk_buff *skb); int icmp_err(struct sk_buff *skb, u32 info); int icmp_init(void); void icmp_out_count(struct net *net, unsigned char type); +bool icmp_build_probe(struct sk_buff *skb, struct icmphdr *icmphdr); #endif /* _ICMP_H */ |