/* SPDX-License-Identifier: LGPL-2.1-or-later */ #include #include #include #include "alloc-util.h" #include "bareudp.h" #include "batadv.h" #include "bond.h" #include "bridge.h" #include "conf-files.h" #include "conf-parser.h" #include "dummy.h" #include "fd-util.h" #include "fou-tunnel.h" #include "geneve.h" #include "ifb.h" #include "ipvlan.h" #include "l2tp-tunnel.h" #include "list.h" #include "macsec.h" #include "macvlan.h" #include "netdev.h" #include "netdevsim.h" #include "netlink-util.h" #include "networkd-manager.h" #include "networkd-queue.h" #include "nlmon.h" #include "path-lookup.h" #include "siphash24.h" #include "stat-util.h" #include "string-table.h" #include "string-util.h" #include "strv.h" #include "tunnel.h" #include "tuntap.h" #include "vcan.h" #include "veth.h" #include "vlan.h" #include "vrf.h" #include "vxcan.h" #include "vxlan.h" #include "wireguard.h" #include "xfrm.h" const NetDevVTable * const netdev_vtable[_NETDEV_KIND_MAX] = { [NETDEV_KIND_BATADV] = &batadv_vtable, [NETDEV_KIND_BRIDGE] = &bridge_vtable, [NETDEV_KIND_BOND] = &bond_vtable, [NETDEV_KIND_VLAN] = &vlan_vtable, [NETDEV_KIND_MACVLAN] = &macvlan_vtable, [NETDEV_KIND_MACVTAP] = &macvtap_vtable, [NETDEV_KIND_IPVLAN] = &ipvlan_vtable, [NETDEV_KIND_IPVTAP] = &ipvtap_vtable, [NETDEV_KIND_VXLAN] = &vxlan_vtable, [NETDEV_KIND_IPIP] = &ipip_vtable, [NETDEV_KIND_GRE] = &gre_vtable, [NETDEV_KIND_GRETAP] = &gretap_vtable, [NETDEV_KIND_IP6GRE] = &ip6gre_vtable, [NETDEV_KIND_IP6GRETAP] = &ip6gretap_vtable, [NETDEV_KIND_SIT] = &sit_vtable, [NETDEV_KIND_VTI] = &vti_vtable, [NETDEV_KIND_VTI6] = &vti6_vtable, [NETDEV_KIND_VETH] = &veth_vtable, [NETDEV_KIND_DUMMY] = &dummy_vtable, [NETDEV_KIND_TUN] = &tun_vtable, [NETDEV_KIND_TAP] = &tap_vtable, [NETDEV_KIND_IP6TNL] = &ip6tnl_vtable, [NETDEV_KIND_VRF] = &vrf_vtable, [NETDEV_KIND_VCAN] = &vcan_vtable, [NETDEV_KIND_GENEVE] = &geneve_vtable, [NETDEV_KIND_VXCAN] = &vxcan_vtable, [NETDEV_KIND_WIREGUARD] = &wireguard_vtable, [NETDEV_KIND_NETDEVSIM] = &netdevsim_vtable, [NETDEV_KIND_FOU] = &foutnl_vtable, [NETDEV_KIND_ERSPAN] = &erspan_vtable, [NETDEV_KIND_L2TP] = &l2tptnl_vtable, [NETDEV_KIND_MACSEC] = &macsec_vtable, [NETDEV_KIND_NLMON] = &nlmon_vtable, [NETDEV_KIND_XFRM] = &xfrm_vtable, [NETDEV_KIND_IFB] = &ifb_vtable, [NETDEV_KIND_BAREUDP] = &bare_udp_vtable, }; static const char* const netdev_kind_table[_NETDEV_KIND_MAX] = { [NETDEV_KIND_BAREUDP] = "bareudp", [NETDEV_KIND_BATADV] = "batadv", [NETDEV_KIND_BRIDGE] = "bridge", [NETDEV_KIND_BOND] = "bond", [NETDEV_KIND_VLAN] = "vlan", [NETDEV_KIND_MACVLAN] = "macvlan", [NETDEV_KIND_MACVTAP] = "macvtap", [NETDEV_KIND_IPVLAN] = "ipvlan", [NETDEV_KIND_IPVTAP] = "ipvtap", [NETDEV_KIND_VXLAN] = "vxlan", [NETDEV_KIND_IPIP] = "ipip", [NETDEV_KIND_GRE] = "gre", [NETDEV_KIND_GRETAP] = "gretap", [NETDEV_KIND_IP6GRE] = "ip6gre", [NETDEV_KIND_IP6GRETAP] = "ip6gretap", [NETDEV_KIND_SIT] = "sit", [NETDEV_KIND_VETH] = "veth", [NETDEV_KIND_VTI] = "vti", [NETDEV_KIND_VTI6] = "vti6", [NETDEV_KIND_DUMMY] = "dummy", [NETDEV_KIND_TUN] = "tun", [NETDEV_KIND_TAP] = "tap", [NETDEV_KIND_IP6TNL] = "ip6tnl", [NETDEV_KIND_VRF] = "vrf", [NETDEV_KIND_VCAN] = "vcan", [NETDEV_KIND_GENEVE] = "geneve", [NETDEV_KIND_VXCAN] = "vxcan", [NETDEV_KIND_WIREGUARD] = "wireguard", [NETDEV_KIND_NETDEVSIM] = "netdevsim", [NETDEV_KIND_FOU] = "fou", [NETDEV_KIND_ERSPAN] = "erspan", [NETDEV_KIND_L2TP] = "l2tp", [NETDEV_KIND_MACSEC] = "macsec", [NETDEV_KIND_NLMON] = "nlmon", [NETDEV_KIND_XFRM] = "xfrm", [NETDEV_KIND_IFB] = "ifb", }; DEFINE_STRING_TABLE_LOOKUP(netdev_kind, NetDevKind); int config_parse_netdev_kind( const char *unit, const char *filename, unsigned line, const char *section, unsigned section_line, const char *lvalue, int ltype, const char *rvalue, void *data, void *userdata) { NetDevKind k, *kind = data; assert(rvalue); assert(data); k = netdev_kind_from_string(rvalue); if (k < 0) { log_syntax(unit, LOG_WARNING, filename, line, k, "Failed to parse netdev kind, ignoring assignment: %s", rvalue); return 0; } if (*kind != _NETDEV_KIND_INVALID && *kind != k) { log_syntax(unit, LOG_WARNING, filename, line, 0, "Specified netdev kind is different from the previous value '%s', ignoring assignment: %s", netdev_kind_to_string(*kind), rvalue); return 0; } *kind = k; return 0; } bool netdev_is_managed(NetDev *netdev) { if (!netdev || !netdev->manager || !netdev->ifname) return false; return hashmap_get(netdev->manager->netdevs, netdev->ifname) == netdev; } static void netdev_detach_from_manager(NetDev *netdev) { if (netdev->ifname && netdev->manager) hashmap_remove(netdev->manager->netdevs, netdev->ifname); } static NetDev *netdev_free(NetDev *netdev) { assert(netdev); netdev_detach_from_manager(netdev); free(netdev->filename); free(netdev->description); free(netdev->ifname); free(netdev->mac); condition_free_list(netdev->conditions); /* Invoke the per-kind done() destructor, but only if the state field is initialized. We conditionalize that * because we parse .netdev files twice: once to determine the kind (with a short, minimal NetDev structure * allocation, with no room for per-kind fields), and once to read the kind's properties (with a full, * comprehensive NetDev structure allocation with enough space for whatever the specific kind needs). Now, in * the first case we shouldn't try to destruct the per-kind NetDev fields on destruction, in the second case we * should. We use the state field to discern the two cases: it's _NETDEV_STATE_INVALID on the first "raw" * call. */ if (netdev->state != _NETDEV_STATE_INVALID && NETDEV_VTABLE(netdev) && NETDEV_VTABLE(netdev)->done) NETDEV_VTABLE(netdev)->done(netdev); return mfree(netdev); } DEFINE_TRIVIAL_REF_UNREF_FUNC(NetDev, netdev, netdev_free); void netdev_drop(NetDev *netdev) { if (!netdev || netdev->state == NETDEV_STATE_LINGER) return; netdev->state = NETDEV_STATE_LINGER; log_netdev_debug(netdev, "netdev removed"); netdev_detach_from_manager(netdev); netdev_unref(netdev); return; } int netdev_get(Manager *manager, const char *name, NetDev **ret) { NetDev *netdev; assert(manager); assert(name); assert(ret); netdev = hashmap_get(manager->netdevs, name); if (!netdev) { *ret = NULL; return -ENOENT; } *ret = netdev; return 0; } static int netdev_enter_failed(NetDev *netdev) { netdev->state = NETDEV_STATE_FAILED; return 0; } static int netdev_enter_ready(NetDev *netdev) { assert(netdev); assert(netdev->ifname); if (netdev->state != NETDEV_STATE_CREATING) return 0; netdev->state = NETDEV_STATE_READY; log_netdev_info(netdev, "netdev ready"); if (NETDEV_VTABLE(netdev)->post_create) NETDEV_VTABLE(netdev)->post_create(netdev, NULL, NULL); return 0; } /* callback for netdev's created without a backing Link */ static int netdev_create_handler(sd_netlink *rtnl, sd_netlink_message *m, NetDev *netdev) { int r; assert(netdev); assert(netdev->state != _NETDEV_STATE_INVALID); r = sd_netlink_message_get_errno(m); if (r == -EEXIST) log_netdev_info(netdev, "netdev exists, using existing without changing its parameters"); else if (r < 0) { log_netdev_warning_errno(netdev, r, "netdev could not be created: %m"); netdev_drop(netdev); return 1; } log_netdev_debug(netdev, "Created"); return 1; } int netdev_set_ifindex(NetDev *netdev, sd_netlink_message *message) { uint16_t type; const char *kind; const char *received_kind; const char *received_name; int r, ifindex; assert(netdev); assert(message); r = sd_netlink_message_get_type(message, &type); if (r < 0) return log_netdev_error_errno(netdev, r, "Could not get rtnl message type: %m"); if (type != RTM_NEWLINK) return log_netdev_error_errno(netdev, SYNTHETIC_ERRNO(EINVAL), "Cannot set ifindex from unexpected rtnl message type."); r = sd_rtnl_message_link_get_ifindex(message, &ifindex); if (r < 0) { log_netdev_error_errno(netdev, r, "Could not get ifindex: %m"); netdev_enter_failed(netdev); return r; } else if (ifindex <= 0) { log_netdev_error(netdev, "Got invalid ifindex: %d", ifindex); netdev_enter_failed(netdev); return -EINVAL; } if (netdev->ifindex > 0) { if (netdev->ifindex != ifindex) { log_netdev_error(netdev, "Could not set ifindex to %d, already set to %d", ifindex, netdev->ifindex); netdev_enter_failed(netdev); return -EEXIST; } else /* ifindex already set to the same for this netdev */ return 0; } r = sd_netlink_message_read_string(message, IFLA_IFNAME, &received_name); if (r < 0) return log_netdev_error_errno(netdev, r, "Could not get IFNAME: %m"); if (!streq(netdev->ifname, received_name)) { log_netdev_error(netdev, "Received newlink with wrong IFNAME %s", received_name); netdev_enter_failed(netdev); return -EINVAL; } r = sd_netlink_message_enter_container(message, IFLA_LINKINFO); if (r < 0) return log_netdev_error_errno(netdev, r, "Could not get LINKINFO: %m"); r = sd_netlink_message_read_string(message, IFLA_INFO_KIND, &received_kind); if (r < 0) return log_netdev_error_errno(netdev, r, "Could not get KIND: %m"); r = sd_netlink_message_exit_container(message); if (r < 0) return log_netdev_error_errno(netdev, r, "Could not exit container: %m"); if (netdev->kind == NETDEV_KIND_TAP) /* the kernel does not distinguish between tun and tap */ kind = "tun"; else { kind = netdev_kind_to_string(netdev->kind); if (!kind) { log_netdev_error(netdev, "Could not get kind"); netdev_enter_failed(netdev); return -EINVAL; } } if (!streq(kind, received_kind)) { log_netdev_error(netdev, "Received newlink with wrong KIND %s, expected %s", received_kind, kind); netdev_enter_failed(netdev); return -EINVAL; } netdev->ifindex = ifindex; log_netdev_debug(netdev, "netdev has index %d", netdev->ifindex); netdev_enter_ready(netdev); return 0; } #define HASH_KEY SD_ID128_MAKE(52,e1,45,bd,00,6f,29,96,21,c6,30,6d,83,71,04,48) int netdev_get_mac(const char *ifname, struct ether_addr **ret) { _cleanup_free_ struct ether_addr *mac = NULL; uint64_t result; size_t l, sz; uint8_t *v; int r; assert(ifname); assert(ret); mac = new0(struct ether_addr, 1); if (!mac) return -ENOMEM; l = strlen(ifname); sz = sizeof(sd_id128_t) + l; v = newa(uint8_t, sz); /* fetch some persistent data unique to the machine */ r = sd_id128_get_machine((sd_id128_t*) v); if (r < 0) return r; /* combine with some data unique (on this machine) to this * netdev */ memcpy(v + sizeof(sd_id128_t), ifname, l); /* Let's hash the host machine ID plus the container name. We * use a fixed, but originally randomly created hash key here. */ result = siphash24(v, sz, HASH_KEY.bytes); assert_cc(ETH_ALEN <= sizeof(result)); memcpy(mac->ether_addr_octet, &result, ETH_ALEN); /* see eth_random_addr in the kernel */ mac->ether_addr_octet[0] &= 0xfe; /* clear multicast bit */ mac->ether_addr_octet[0] |= 0x02; /* set local assignment bit (IEEE802) */ *ret = TAKE_PTR(mac); return 0; } static int netdev_create(NetDev *netdev, Link *link, link_netlink_message_handler_t callback) { int r; assert(netdev); assert(!link || callback); /* create netdev */ if (NETDEV_VTABLE(netdev)->create) { assert(!link); r = NETDEV_VTABLE(netdev)->create(netdev); if (r < 0) return r; log_netdev_debug(netdev, "Created"); } else { _cleanup_(sd_netlink_message_unrefp) sd_netlink_message *m = NULL; r = sd_rtnl_message_new_link(netdev->manager->rtnl, &m, RTM_NEWLINK, 0); if (r < 0) return log_netdev_error_errno(netdev, r, "Could not allocate RTM_NEWLINK message: %m"); r = sd_netlink_message_append_string(m, IFLA_IFNAME, netdev->ifname); if (r < 0) return log_netdev_error_errno(netdev, r, "Could not append IFLA_IFNAME, attribute: %m"); if (netdev->mac) { r = sd_netlink_message_append_ether_addr(m, IFLA_ADDRESS, netdev->mac); if (r < 0) return log_netdev_error_errno(netdev, r, "Could not append IFLA_ADDRESS attribute: %m"); } if (netdev->mtu != 0) { r = sd_netlink_message_append_u32(m, IFLA_MTU, netdev->mtu); if (r < 0) return log_netdev_error_errno(netdev, r, "Could not append IFLA_MTU attribute: %m"); } if (link) { r = sd_netlink_message_append_u32(m, IFLA_LINK, link->ifindex); if (r < 0) return log_netdev_error_errno(netdev, r, "Could not append IFLA_LINK attribute: %m"); } r = sd_netlink_message_open_container(m, IFLA_LINKINFO); if (r < 0) return log_netdev_error_errno(netdev, r, "Could not append IFLA_LINKINFO attribute: %m"); r = sd_netlink_message_open_container_union(m, IFLA_INFO_DATA, netdev_kind_to_string(netdev->kind)); if (r < 0) return log_netdev_error_errno(netdev, r, "Could not append IFLA_INFO_DATA attribute: %m"); if (NETDEV_VTABLE(netdev)->fill_message_create) { r = NETDEV_VTABLE(netdev)->fill_message_create(netdev, link, m); if (r < 0) return r; } r = sd_netlink_message_close_container(m); if (r < 0) return log_netdev_error_errno(netdev, r, "Could not append IFLA_INFO_DATA attribute: %m"); r = sd_netlink_message_close_container(m); if (r < 0) return log_netdev_error_errno(netdev, r, "Could not append IFLA_LINKINFO attribute: %m"); if (link) { r = netlink_call_async(netdev->manager->rtnl, NULL, m, callback, link_netlink_destroy_callback, link); if (r < 0) return log_netdev_error_errno(netdev, r, "Could not send rtnetlink message: %m"); link_ref(link); } else { r = netlink_call_async(netdev->manager->rtnl, NULL, m, netdev_create_handler, netdev_destroy_callback, netdev); if (r < 0) return log_netdev_error_errno(netdev, r, "Could not send rtnetlink message: %m"); netdev_ref(netdev); } netdev->state = NETDEV_STATE_CREATING; log_netdev_debug(netdev, "Creating"); } return 0; } static int netdev_create_after_configured(NetDev *netdev, Link *link) { assert(netdev); assert(link); assert(NETDEV_VTABLE(netdev)->create_after_configured); return NETDEV_VTABLE(netdev)->create_after_configured(netdev, link); } int netdev_join(NetDev *netdev, Link *link, link_netlink_message_handler_t callback) { int r; assert(netdev); assert(netdev->manager); assert(netdev->manager->rtnl); switch (netdev_get_create_type(netdev)) { case NETDEV_CREATE_STACKED: r = netdev_create(netdev, link, callback); if (r < 0) return r; break; case NETDEV_CREATE_AFTER_CONFIGURED: r = netdev_create_after_configured(netdev, link); if (r < 0) return r; break; default: assert_not_reached("Cannot join independent netdev"); } return 0; } static bool netdev_is_ready_to_create(NetDev *netdev, Link *link) { Request req; assert(netdev); assert(link); if (netdev->state != NETDEV_STATE_LOADING) return false; if (!IN_SET(link->state, LINK_STATE_INITIALIZED, LINK_STATE_CONFIGURING, LINK_STATE_CONFIGURED)) return false; if (netdev_get_create_type(netdev) == NETDEV_CREATE_AFTER_CONFIGURED && link->state != LINK_STATE_CONFIGURED) return false; req = (Request) { .link = link, .type = REQUEST_TYPE_SET_LINK, .set_link_operation = SET_LINK_MTU, }; if (ordered_set_contains(link->manager->request_queue, &req)) return false; return true; } int request_process_create_stacked_netdev(Request *req) { int r; assert(req); assert(req->link); assert(req->type == REQUEST_TYPE_CREATE_STACKED_NETDEV); assert(req->netdev); assert(req->netlink_handler); if (!netdev_is_ready_to_create(req->netdev, req->link)) return 0; r = netdev_join(req->netdev, req->link, req->netlink_handler); if (r < 0) return log_link_error_errno(req->link, r, "Failed to create stacked netdev '%s': %m", req->netdev->ifname); return 1; } static int link_create_stacked_netdev_handler_internal(sd_netlink *rtnl, sd_netlink_message *m, Link *link) { int r; assert(m); assert(link); if (IN_SET(link->state, LINK_STATE_FAILED, LINK_STATE_LINGER)) return 0; r = sd_netlink_message_get_errno(m); if (r < 0 && r != -EEXIST) { log_link_message_warning_errno(link, m, r, "Could not create stacked netdev"); link_enter_failed(link); return 0; } return 1; } static int link_create_stacked_netdev_handler(sd_netlink *rtnl, sd_netlink_message *m, Link *link) { assert(link); assert(link->create_stacked_netdev_messages > 0); link->create_stacked_netdev_messages--; if (link_create_stacked_netdev_handler_internal(rtnl, m, link) <= 0) return 0; if (link->create_stacked_netdev_messages == 0) { link->stacked_netdevs_created = true; log_link_debug(link, "Stacked netdevs created."); } return 0; } static int link_create_stacked_netdev_after_configured_handler(sd_netlink *rtnl, sd_netlink_message *m, Link *link) { assert(link); assert(link->create_stacked_netdev_after_configured_messages > 0); link->create_stacked_netdev_after_configured_messages--; if (link_create_stacked_netdev_handler_internal(rtnl, m, link) <= 0) return 0; if (link->create_stacked_netdev_after_configured_messages == 0) { link->stacked_netdevs_after_configured_created = true; log_link_debug(link, "Stacked netdevs created."); } return 0; } int link_request_to_crate_stacked_netdev(Link *link, NetDev *netdev) { NetDevCreateType create_type; int r; assert(link); assert(netdev); create_type = netdev_get_create_type(netdev); if (!IN_SET(create_type, NETDEV_CREATE_STACKED, NETDEV_CREATE_AFTER_CONFIGURED)) return -EINVAL; if (netdev->state != NETDEV_STATE_LOADING || netdev->ifindex > 0) /* Already created (or removed?) */ return 0; if (create_type == NETDEV_CREATE_STACKED) { link->stacked_netdevs_created = false; r = link_queue_request(link, REQUEST_TYPE_CREATE_STACKED_NETDEV, netdev, false, &link->create_stacked_netdev_messages, link_create_stacked_netdev_handler, NULL); } else { link->stacked_netdevs_after_configured_created = false; r = link_queue_request(link, REQUEST_TYPE_CREATE_STACKED_NETDEV, netdev, false, &link->create_stacked_netdev_after_configured_messages, link_create_stacked_netdev_after_configured_handler, NULL); } if (r < 0) return log_link_error_errno(link, r, "Failed to request to create stacked netdev '%s': %m", netdev->ifname); log_link_debug(link, "Requested to create stacked netdev '%s'", netdev->ifname); return 0; } int netdev_load_one(Manager *manager, const char *filename) { _cleanup_(netdev_unrefp) NetDev *netdev_raw = NULL, *netdev = NULL; const char *dropin_dirname; bool independent = false; int r; assert(manager); assert(filename); r = null_or_empty_path(filename); if (r == -ENOENT) return 0; if (r < 0) return r; if (r > 0) { log_debug("Skipping empty file: %s", filename); return 0; } netdev_raw = new(NetDev, 1); if (!netdev_raw) return log_oom(); *netdev_raw = (NetDev) { .n_ref = 1, .kind = _NETDEV_KIND_INVALID, .state = _NETDEV_STATE_INVALID, /* an invalid state means done() of the implementation won't be called on destruction */ }; dropin_dirname = strjoina(basename(filename), ".d"); r = config_parse_many( STRV_MAKE_CONST(filename), NETWORK_DIRS, dropin_dirname, NETDEV_COMMON_SECTIONS NETDEV_OTHER_SECTIONS, config_item_perf_lookup, network_netdev_gperf_lookup, CONFIG_PARSE_WARN, netdev_raw, NULL); if (r < 0) return r; /* skip out early if configuration does not match the environment */ if (!condition_test_list(netdev_raw->conditions, environ, NULL, NULL, NULL)) { log_debug("%s: Conditions in the file do not match the system environment, skipping.", filename); return 0; } if (netdev_raw->kind == _NETDEV_KIND_INVALID) { log_warning("NetDev has no Kind= configured in %s. Ignoring", filename); return 0; } if (!netdev_raw->ifname) { log_warning("NetDev without Name= configured in %s. Ignoring", filename); return 0; } netdev = malloc0(NETDEV_VTABLE(netdev_raw)->object_size); if (!netdev) return log_oom(); netdev->n_ref = 1; netdev->manager = manager; netdev->kind = netdev_raw->kind; netdev->state = NETDEV_STATE_LOADING; /* we initialize the state here for the first time, so that done() will be called on destruction */ if (NETDEV_VTABLE(netdev)->init) NETDEV_VTABLE(netdev)->init(netdev); r = config_parse_many( STRV_MAKE_CONST(filename), NETWORK_DIRS, dropin_dirname, NETDEV_VTABLE(netdev)->sections, config_item_perf_lookup, network_netdev_gperf_lookup, CONFIG_PARSE_WARN, netdev, NULL); if (r < 0) return r; /* verify configuration */ if (NETDEV_VTABLE(netdev)->config_verify) { r = NETDEV_VTABLE(netdev)->config_verify(netdev, filename); if (r < 0) return 0; } netdev->filename = strdup(filename); if (!netdev->filename) return log_oom(); if (!netdev->mac && NETDEV_VTABLE(netdev)->generate_mac) { r = netdev_get_mac(netdev->ifname, &netdev->mac); if (r < 0) return log_netdev_error_errno(netdev, r, "Failed to generate predictable MAC address: %m"); } r = hashmap_ensure_put(&netdev->manager->netdevs, &string_hash_ops, netdev->ifname, netdev); if (r == -ENOMEM) return log_oom(); if (r == -EEXIST) { NetDev *n = hashmap_get(netdev->manager->netdevs, netdev->ifname); assert(n); if (!streq(netdev->filename, n->filename)) log_netdev_warning_errno(netdev, r, "Device was already configured by file %s, ignoring %s.", n->filename, netdev->filename); /* Clear ifname before netdev_free() is called. Otherwise, the NetDev object 'n' is * removed from the hashmap 'manager->netdevs'. */ netdev->ifname = mfree(netdev->ifname); return 0; } if (r < 0) return r; log_netdev_debug(netdev, "loaded %s", netdev_kind_to_string(netdev->kind)); if (IN_SET(netdev_get_create_type(netdev), NETDEV_CREATE_MASTER, NETDEV_CREATE_INDEPENDENT)) { r = netdev_create(netdev, NULL, NULL); if (r < 0) return r; } switch (netdev->kind) { case NETDEV_KIND_IPIP: independent = IPIP(netdev)->independent; break; case NETDEV_KIND_GRE: independent = GRE(netdev)->independent; break; case NETDEV_KIND_GRETAP: independent = GRETAP(netdev)->independent; break; case NETDEV_KIND_IP6GRE: independent = IP6GRE(netdev)->independent; break; case NETDEV_KIND_IP6GRETAP: independent = IP6GRETAP(netdev)->independent; break; case NETDEV_KIND_SIT: independent = SIT(netdev)->independent; break; case NETDEV_KIND_VTI: independent = VTI(netdev)->independent; break; case NETDEV_KIND_VTI6: independent = VTI6(netdev)->independent; break; case NETDEV_KIND_IP6TNL: independent = IP6TNL(netdev)->independent; break; case NETDEV_KIND_ERSPAN: independent = ERSPAN(netdev)->independent; break; case NETDEV_KIND_XFRM: independent = XFRM(netdev)->independent; break; case NETDEV_KIND_VXLAN: independent = VXLAN(netdev)->independent; break; default: break; } if (independent) { r = netdev_create(netdev, NULL, NULL); if (r < 0) return r; } netdev = NULL; return 0; } int netdev_load(Manager *manager, bool reload) { _cleanup_strv_free_ char **files = NULL; char **f; int r; assert(manager); if (!reload) hashmap_clear_with_destructor(manager->netdevs, netdev_unref); r = conf_files_list_strv(&files, ".netdev", NULL, 0, NETWORK_DIRS); if (r < 0) return log_error_errno(r, "Failed to enumerate netdev files: %m"); STRV_FOREACH(f, files) { r = netdev_load_one(manager, *f); if (r < 0) log_error_errno(r, "Failed to load %s, ignoring: %m", *f); } return 0; }