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nic_router: config attribute 'mac_first'

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The mac_first attribute tells the MAC-address allocator of the router
from which MAC address to start allocating. This is useful, for
instance, if you have nested nic_routers. In this case, identical
MAC-allocator settings have led to name clashes in the past, so, you
want to be able to configure them differently.

Issue #2732
This commit is contained in:
Martin Stein 2018-03-29 14:17:46 +02:00 committed by Christian Helmuth
parent 7b3343c2dc
commit 168407a40a
4 changed files with 16 additions and 1 deletions
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4
repos/os/src/server/nic_router/component.cc
View File

@ -124,7 +124,9 @@ Net::Root::Root(Entrypoint &ep,
Root_component<Session_component>(&ep.rpc_ep(), &alloc), _timer(timer),
_ep(ep), _router_mac(router_mac), _config(config), _buf_ram(buf_ram),
_region_map(region_map), _interfaces(interfaces)
{ }
{
Mac_allocator::mac_addr_base = config.mac_first();
}
Session_component *Net::Root::_create_session(char const *args)

8
repos/os/src/server/nic_router/config.xsd
View File

@ -40,6 +40,13 @@
</xs:restriction>
</xs:simpleType><!-- Domain_name -->
<xs:simpleType name="Mac_address">
<xs:restriction base="xs:string">
<xs:minLength value="11"/>
<xs:maxLength value="17"/>
</xs:restriction>
</xs:simpleType><!-- Mac_address -->
<xs:simpleType name="Session_label">
<xs:restriction base="xs:string">
<xs:minLength value="1"/>
@ -151,6 +158,7 @@
</xs:element><!-- domain -->
</xs:choice>
<xs:attribute name="mac_first" type="Mac_address" />
<xs:attribute name="verbose" type="Boolean" />
<xs:attribute name="verbose_packets" type="Boolean" />
<xs:attribute name="verbose_domain_state" type="Boolean" />

1
repos/os/src/server/nic_router/configuration.cc
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@ -52,6 +52,7 @@ Configuration::Configuration(Env &env,
_udp_idle_timeout (read_sec_attr(node, "udp_idle_timeout_sec", DEFAULT_UDP_IDLE_TIMEOUT_SEC )),
_tcp_idle_timeout (read_sec_attr(node, "tcp_idle_timeout_sec", DEFAULT_TCP_IDLE_TIMEOUT_SEC )),
_tcp_max_segm_lifetime(read_sec_attr(node, "tcp_max_segm_lifetime_sec", DEFAULT_TCP_MAX_SEGM_LIFETIME_SEC)),
_mac_first (mac_from_string(node.attribute_value("mac_first", Mac_string("02:02:02:02:02:00")).string())),
_node(node)
{
/* read domains */

4
repos/os/src/server/nic_router/configuration.h
View File

@ -30,6 +30,8 @@ class Net::Configuration
{
private:
using Mac_string = Genode::String<17>;
Genode::Allocator &_alloc;
bool const _verbose { false };
bool const _verbose_packets { false };
@ -41,6 +43,7 @@ class Net::Configuration
Genode::Microseconds const _udp_idle_timeout { DEFAULT_UDP_IDLE_TIMEOUT_SEC };
Genode::Microseconds const _tcp_idle_timeout { DEFAULT_TCP_IDLE_TIMEOUT_SEC };
Genode::Microseconds const _tcp_max_segm_lifetime { DEFAULT_TCP_MAX_SEGM_LIFETIME_SEC };
Mac_address const _mac_first { mac_from_string("02:02:02:02:02:00") };
Pointer<Report> _report { };
Pointer<Genode::Reporter> _reporter { };
Domain_tree _domains { };
@ -86,6 +89,7 @@ class Net::Configuration
Domain_tree &domains() { return _domains; }
Report &report() { return _report(); }
Genode::Xml_node node() const { return _node; }
Mac_address const &mac_first() const { return _mac_first; }
};
#endif /* _CONFIGURATION_H_ */