From: Justin Cinkelj <justin.cink...@xlab.si>
Committer: Nadav Har'El <n...@scylladb.com>
Branch: master
dhcp: remove DNS resolvers when DHCP release is send
Signed-off-by: Justin Cinkelj <justin.cink...@xlab.si>
Message-Id: <20161124202854.23662-3-justin.cink...@xlab.si>
---
diff --git a/core/dhcp.cc b/core/dhcp.cc
--- a/core/dhcp.cc
+++ b/core/dhcp.cc
@@ -26,11 +26,7 @@
#include <osv/debug.hh>
#include <osv/dhcp.hh>
#include <osv/clock.hh>
-
-namespace osv {
-void set_dns_config(std::vector<boost::asio::ip::address> nameservers,
- std::vector<std::string> search_domains);
-}
+#include <libc/network/__dns.hh>
using namespace boost::asio;
@@ -538,6 +534,9 @@ namespace dhcp {
_sock->dhcp_send(dm);
// IP and routes have to be removed
osv::stop_if(_ifp->if_xname, _client_addr.to_string().c_str());
+ // Here we assume that all DNS resolvers were added by this iface.
+ // This might not be true if we have more than one iface.
+ osv::set_dns_config({}, {});
// no reply/ack is expected, after send we just forget all old
state
_client_addr = _server_addr = ipv4_zero;
}
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