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authorAndreas Roeseler <andreas.a.roeseler@gmail.com>2021-06-26 17:07:46 +0300
committerDavid S. Miller <davem@davemloft.net>2021-06-29 00:29:45 +0300
commit1fd07f33c3ea2b4aa77426f13e8cb91d4f55af8f (patch)
tree6c50937b3c4c2105bffac3ec1bdb205b1e966da7 /include/net/icmp.h
parent83300c69e797343c560086b1a4be56443c0d7f5e (diff)
downloadlinux-1fd07f33c3ea2b4aa77426f13e8cb91d4f55af8f.tar.xz
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.h1
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 */