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| author | Andreas Roeseler <andreas.a.roeseler@gmail.com> | 2021-03-30 03:45:29 +0200 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2021-03-30 22:29:39 +0200 |
| commit | f1b8fa9fa5865c58c093cde6d782104c22df9088 (patch) | |
| tree | ef07fd170fd9cbc12478bf4dc4a28882054aaa45 /net/ipv4/sysctl_net_ipv4.c | |
| parent | ICMPV6: add support for RFC 8335 PROBE (diff) | |
| download | linux-f1b8fa9fa5865c58c093cde6d782104c22df9088.tar.xz linux-f1b8fa9fa5865c58c093cde6d782104c22df9088.zip | |
net: add sysctl for enabling RFC 8335 PROBE messages
Section 8 of RFC 8335 specifies potential security concerns of
responding to PROBE requests, and states that nodes that support PROBE
functionality MUST be able to enable/disable responses and that
responses MUST be disabled by default
Signed-off-by: Andreas Roeseler <andreas.a.roeseler@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net/ipv4/sysctl_net_ipv4.c')
| -rw-r--r-- | net/ipv4/sysctl_net_ipv4.c | 9 |
1 files changed, 9 insertions, 0 deletions
diff --git a/net/ipv4/sysctl_net_ipv4.c b/net/ipv4/sysctl_net_ipv4.c index 3a7e5cf5d6cc..e3cb2d96b55e 100644 --- a/net/ipv4/sysctl_net_ipv4.c +++ b/net/ipv4/sysctl_net_ipv4.c @@ -599,6 +599,15 @@ static struct ctl_table ipv4_net_table[] = { .proc_handler = proc_dou8vec_minmax, }, { + .procname = "icmp_echo_enable_probe", + .data = &init_net.ipv4.sysctl_icmp_echo_enable_probe, + .maxlen = sizeof(int), + .mode = 0644, + .proc_handler = proc_dointvec_minmax, + .extra1 = SYSCTL_ZERO, + .extra2 = SYSCTL_ONE + }, + { .procname = "icmp_echo_ignore_broadcasts", .data = &init_net.ipv4.sysctl_icmp_echo_ignore_broadcasts, .maxlen = sizeof(u8), |