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nic_router: log ARP decisions when verbose

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In verbose mode, some types of ARP packets were handled without any log about
what was done.

Issue #2899
This commit is contained in:
Martin Stein 2018-07-02 12:25:15 +02:00 committed by Christian Helmuth
parent 45347749fe
commit 495490743c
1 changed files with 12 additions and 0 deletions
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12
repos/os/src/server/nic_router/interface.cc
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@ -1189,6 +1189,9 @@ void Interface::_handle_arp_reply(Ethernet_frame &eth,
* Packet targets IP local to the domain's subnet and doesn't target
* the router. Thus, forward it to all other interfaces of the domain.
*/
if (_config().verbose()) {
log("[", local_domain, "] forward ARP reply for local IP "
"to all interfaces of the sender domain"); }
_domain_broadcast(eth, size_guard, local_domain);
}
}
@ -1231,11 +1234,17 @@ void Interface::_handle_arp_request(Ethernet_frame &eth,
} else if (arp.dst_ip() == local_intf.address) {
/* ARP request for the routers IP at this domain */
if (_config().verbose()) {
log("[", local_domain, "] answer ARP request for router IP "
"with router MAC"); }
_send_arp_reply(eth, size_guard, arp);
} else {
/* forward request to all other interfaces of the domain */
if (_config().verbose()) {
log("[", local_domain, "] forward ARP request for local IP "
"to all interfaces of the sender domain"); }
_domain_broadcast(eth, size_guard, local_domain);
}
@ -1250,6 +1259,9 @@ void Interface::_handle_arp_request(Ethernet_frame &eth,
} else {
/* try to act as gateway for the domain as none is configured */
if (_config().verbose()) {
log("[", local_domain, "] answer ARP request for foreign IP "
"with router MAC"); }
_send_arp_reply(eth, size_guard, arp);
}
}