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networkd: enable to set IFF_ALLMULTI to network device (#9146)
networkd: allow setting set IFF_ALLMULTI flag on network devices
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parent
be4bf266cb
commit
866e6b7a12
@ -234,7 +234,7 @@
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<varlistentry>
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<term><varname>ARP=</varname></term>
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<listitem>
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<para> A boolean. Enables or disables the ARP (low-level Address Resolution Protocol)
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<para>A boolean. Enables or disables the ARP (low-level Address Resolution Protocol)
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for this interface. Defaults to unset, which means that the kernel default will be used.</para>
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<para> For example, disabling ARP is useful when creating multiple MACVLAN or VLAN virtual
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interfaces atop a single lower-level physical interface, which will then only serve as a
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@ -245,7 +245,14 @@
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<varlistentry>
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<term><varname>Multicast=</varname></term>
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<listitem>
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<para> A boolean. Enables or disables the change the MULTICAST flag on the device.</para>
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<para>A boolean. Enables or disables the multicast flag on the device.</para>
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</listitem>
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</varlistentry>
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<varlistentry>
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<term><varname>AllMulticast=</varname></term>
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<listitem>
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<para>A boolean. When this flag is set the driver retrieves all multicast packets from the network.
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This happens when multicast routing is enabled.</para>
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</listitem>
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</varlistentry>
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<varlistentry>
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@ -1357,7 +1357,7 @@ static int link_set_flags(Link *link) {
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if (!link->network)
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return 0;
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if (link->network->arp < 0 && link->network->multicast < 0)
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if (link->network->arp < 0 && link->network->multicast < 0 && link->network->allmulticast < 0)
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return 0;
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r = sd_rtnl_message_new_link(link->manager->rtnl, &req, RTM_SETLINK, link->ifindex);
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@ -1374,6 +1374,11 @@ static int link_set_flags(Link *link) {
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SET_FLAG(ifi_flags, IFF_MULTICAST, link->network->multicast);
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}
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if (link->network->allmulticast >= 0) {
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ifi_change |= IFF_ALLMULTI;
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SET_FLAG(ifi_flags, IFF_ALLMULTI, link->network->allmulticast);
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}
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r = sd_rtnl_message_link_set_flags(req, ifi_flags, ifi_change);
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if (r < 0)
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return log_link_error_errno(link, r, "Could not set link flags: %m");
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@ -34,6 +34,7 @@ Link.MACAddress, config_parse_hwaddr,
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Link.MTUBytes, config_parse_mtu, AF_UNSPEC, offsetof(Network, mtu)
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Link.ARP, config_parse_tristate, 0, offsetof(Network, arp)
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Link.Multicast, config_parse_tristate, 0, offsetof(Network, multicast)
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Link.AllMulticast, config_parse_tristate, 0, offsetof(Network, allmulticast)
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Link.Unmanaged, config_parse_bool, 0, offsetof(Network, unmanaged)
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Link.RequiredForOnline, config_parse_bool, 0, offsetof(Network, required_for_online)
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Network.Description, config_parse_string, 0, offsetof(Network, description)
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@ -248,6 +248,7 @@ static int network_load_one(Manager *manager, const char *filename) {
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network->proxy_arp = -1;
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network->arp = -1;
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network->multicast = -1;
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network->allmulticast = -1;
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network->ipv6_accept_ra_use_dns = true;
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network->ipv6_accept_ra_route_table = RT_TABLE_MAIN;
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network->ipv6_mtu = 0;
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@ -214,6 +214,7 @@ struct Network {
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uint32_t mtu;
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int arp;
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int multicast;
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int allmulticast;
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bool unmanaged;
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bool configure_without_carrier;
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uint32_t iaid;
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