networkd: introduce sit tunnel
This patch introduces sit tunnel support to networkd Example conf: file: sit.netdev [NetDev] Name=sit-tun Kind=sit MTUBytes=1480 [Tunnel] Local=10.65.223.238 Remote=10.65.223.239 file: sit.network [Match] Name=em1 [Network] Tunnel=sit-tun [tomegun: rebased]
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@ -129,6 +129,103 @@ static int netdev_fill_ipip_rtnl_message(Link *link, sd_rtnl_message *m) {
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return r;
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}
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static int netdev_fill_sit_rtnl_message(Link *link, sd_rtnl_message *m) {
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NetDev *netdev;
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int r;
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assert(link);
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assert(link->network);
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assert(link->network->tunnel);
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assert(m);
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netdev = link->network->tunnel;
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r = sd_rtnl_message_append_string(m, IFLA_IFNAME, netdev->ifname);
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if (r < 0) {
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log_error_netdev(netdev,
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"Could not append IFLA_IFNAME, attribute: %s",
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strerror(-r));
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return r;
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}
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if(netdev->mtu) {
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r = sd_rtnl_message_append_u32(m, IFLA_MTU, netdev->mtu);
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if (r < 0) {
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log_error_netdev(netdev,
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"Could not append IFLA_MTU attribute: %s",
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strerror(-r));
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return r;
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}
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}
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r = sd_rtnl_message_open_container(m, IFLA_LINKINFO);
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if (r < 0) {
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log_error_netdev(netdev,
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"Could not append IFLA_LINKINFO attribute: %s",
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strerror(-r));
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return r;
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}
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r = sd_rtnl_message_open_container_union(m, IFLA_INFO_DATA,
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netdev_kind_to_string(netdev->kind));
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if (r < 0) {
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log_error_netdev(netdev,
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"Could not append IFLA_INFO_DATA attribute: %s",
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strerror(-r));
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return r;
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}
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r = sd_rtnl_message_append_u32(m, IFLA_IPTUN_LINK, link->ifindex);
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if (r < 0) {
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log_error_netdev(netdev,
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"Could not append IFLA_IPTUN_LINK attribute: %s",
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strerror(-r));
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return r;
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}
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r = sd_rtnl_message_append_in_addr(m, IFLA_IPTUN_LOCAL, &netdev->tunnel_local);
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if (r < 0) {
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log_error_netdev(netdev,
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"Could not append IFLA_IPTUN_LOCAL attribute: %s",
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strerror(-r));
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return r;
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}
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r = sd_rtnl_message_append_in_addr(m, IFLA_IPTUN_REMOTE, &netdev->tunnel_remote);
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if (r < 0) {
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log_error_netdev(netdev,
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"Could not append IFLA_IPTUN_REMOTE attribute: %s",
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strerror(-r));
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return r;
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}
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r = sd_rtnl_message_append_u8(m, IFLA_IPTUN_TOS, netdev->tunnel_tos);
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if (r < 0) {
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log_error_netdev(netdev,
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"Could not append IFLA_IPTUN_TOS attribute: %s",
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strerror(-r));
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return r;
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}
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r = sd_rtnl_message_close_container(m);
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if (r < 0) {
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log_error_netdev(netdev,
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"Could not append IFLA_INFO_DATA attribute: %s",
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strerror(-r));
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return r;
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}
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r = sd_rtnl_message_close_container(m);
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if (r < 0) {
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log_error_netdev(netdev,
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"Could not append IFLA_LINKINFO attribute: %s",
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strerror(-r));
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return r;
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}
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return r;
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}
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int netdev_create_tunnel(Link *link, sd_rtnl_message_handler_t callback) {
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_cleanup_rtnl_message_unref_ sd_rtnl_message *m = NULL;
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NetDev *netdev;
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@ -178,8 +275,12 @@ int netdev_create_tunnel(Link *link, sd_rtnl_message_handler_t callback) {
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if(r < 0)
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return r;
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break;
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case NETDEV_KIND_GRE:
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case NETDEV_KIND_SIT:
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r = netdev_fill_sit_rtnl_message(link, m);
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if(r < 0)
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return r;
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break;
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case NETDEV_KIND_GRE:
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default:
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return -ENOTSUP;
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}
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