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Dump malformed ingress packets at DEBUG log level.

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This commit is contained in:
whitequark 2017-10-24 20:19:17 +00:00
parent 8ee2f7bff5
commit 7c6cd6b9a3
1 changed files with 13 additions and 2 deletions
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15
src/iface/ethernet.rs
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@ -175,6 +175,17 @@ impl<'a, 'b, 'c, DeviceT: Device + 'a> Interface<'a, 'b, 'c, DeviceT> {
Ok(response) => response,
Err(err) => {
net_debug!("cannot process ingress packet: {}", err);
if net_log_enabled!(debug) {
match EthernetFrame::new_checked(frame.as_ref()) {
Err(_) => {
net_debug!("packet dump follows:\n{:?}", frame.as_ref());
}
Ok(frame) => {
net_debug!("packet dump follows:\n{}", frame);
}
}
}
return Err(err)
}
};
@ -274,7 +285,7 @@ impl<'a, 'b, 'c, DeviceT: Device + 'a> Interface<'a, 'b, 'c, DeviceT> {
&source_hardware_addr);
} else {
// Discard packets with non-unicast source addresses.
net_debug!("non-unicast source in {}", arp_repr);
net_debug!("non-unicast source address");
return Err(Error::Malformed)
}
@ -305,7 +316,7 @@ impl<'a, 'b, 'c, DeviceT: Device + 'a> Interface<'a, 'b, 'c, DeviceT> {
if !ipv4_repr.src_addr.is_unicast() {
// Discard packets with non-unicast source addresses.
net_debug!("non-unicast source in {}", ipv4_repr);
net_debug!("non-unicast source address");
return Err(Error::Malformed)
}