d9b02e1697
Fixes #9320. for p in Shapovalov Chevalier Rozhkov Sievers Mack Herrmann Schmidt Rudenberg Sahani Landden Andersen Watanabe; do git grep -e 'Copyright.*'$p -l|xargs perl -i -0pe 's|/([*][*])?[*]\s+([*#]\s+)?Copyright[^\n]*'$p'[^\n]*\s*[*]([*][*])?/\n*|\n|gms; s|\s+([*#]\s+)?Copyright[^\n]*'$p'[^\n]*\n*|\n|gms' done
782 lines
27 KiB
C
782 lines
27 KiB
C
/* SPDX-License-Identifier: LGPL-2.1+ */
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#include <net/if.h>
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#include "alloc-util.h"
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#include "conf-files.h"
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#include "conf-parser.h"
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#include "fd-util.h"
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#include "list.h"
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#include "netlink-util.h"
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#include "network-internal.h"
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#include "netdev/netdev.h"
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#include "networkd-manager.h"
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#include "networkd-link.h"
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#include "siphash24.h"
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#include "stat-util.h"
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#include "string-table.h"
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#include "string-util.h"
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#include "netdev/bridge.h"
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#include "netdev/bond.h"
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#include "netdev/geneve.h"
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#include "netdev/vlan.h"
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#include "netdev/macvlan.h"
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#include "netdev/ipvlan.h"
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#include "netdev/vxlan.h"
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#include "netdev/tunnel.h"
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#include "netdev/tuntap.h"
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#include "netdev/veth.h"
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#include "netdev/dummy.h"
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#include "netdev/vrf.h"
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#include "netdev/vcan.h"
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#include "netdev/vxcan.h"
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#include "netdev/wireguard.h"
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#include "netdev/netdevsim.h"
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const NetDevVTable * const netdev_vtable[_NETDEV_KIND_MAX] = {
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[NETDEV_KIND_BRIDGE] = &bridge_vtable,
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[NETDEV_KIND_BOND] = &bond_vtable,
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[NETDEV_KIND_VLAN] = &vlan_vtable,
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[NETDEV_KIND_MACVLAN] = &macvlan_vtable,
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[NETDEV_KIND_MACVTAP] = &macvtap_vtable,
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[NETDEV_KIND_IPVLAN] = &ipvlan_vtable,
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[NETDEV_KIND_VXLAN] = &vxlan_vtable,
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[NETDEV_KIND_IPIP] = &ipip_vtable,
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[NETDEV_KIND_GRE] = &gre_vtable,
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[NETDEV_KIND_GRETAP] = &gretap_vtable,
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[NETDEV_KIND_IP6GRE] = &ip6gre_vtable,
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[NETDEV_KIND_IP6GRETAP] = &ip6gretap_vtable,
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[NETDEV_KIND_SIT] = &sit_vtable,
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[NETDEV_KIND_VTI] = &vti_vtable,
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[NETDEV_KIND_VTI6] = &vti6_vtable,
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[NETDEV_KIND_VETH] = &veth_vtable,
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[NETDEV_KIND_DUMMY] = &dummy_vtable,
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[NETDEV_KIND_TUN] = &tun_vtable,
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[NETDEV_KIND_TAP] = &tap_vtable,
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[NETDEV_KIND_IP6TNL] = &ip6tnl_vtable,
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[NETDEV_KIND_VRF] = &vrf_vtable,
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[NETDEV_KIND_VCAN] = &vcan_vtable,
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[NETDEV_KIND_GENEVE] = &geneve_vtable,
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[NETDEV_KIND_VXCAN] = &vxcan_vtable,
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[NETDEV_KIND_WIREGUARD] = &wireguard_vtable,
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[NETDEV_KIND_NETDEVSIM] = &netdevsim_vtable,
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};
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static const char* const netdev_kind_table[_NETDEV_KIND_MAX] = {
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[NETDEV_KIND_BRIDGE] = "bridge",
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[NETDEV_KIND_BOND] = "bond",
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[NETDEV_KIND_VLAN] = "vlan",
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[NETDEV_KIND_MACVLAN] = "macvlan",
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[NETDEV_KIND_MACVTAP] = "macvtap",
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[NETDEV_KIND_IPVLAN] = "ipvlan",
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[NETDEV_KIND_VXLAN] = "vxlan",
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[NETDEV_KIND_IPIP] = "ipip",
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[NETDEV_KIND_GRE] = "gre",
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[NETDEV_KIND_GRETAP] = "gretap",
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[NETDEV_KIND_IP6GRE] = "ip6gre",
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[NETDEV_KIND_IP6GRETAP] = "ip6gretap",
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[NETDEV_KIND_SIT] = "sit",
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[NETDEV_KIND_VETH] = "veth",
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[NETDEV_KIND_VTI] = "vti",
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[NETDEV_KIND_VTI6] = "vti6",
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[NETDEV_KIND_DUMMY] = "dummy",
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[NETDEV_KIND_TUN] = "tun",
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[NETDEV_KIND_TAP] = "tap",
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[NETDEV_KIND_IP6TNL] = "ip6tnl",
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[NETDEV_KIND_VRF] = "vrf",
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[NETDEV_KIND_VCAN] = "vcan",
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[NETDEV_KIND_GENEVE] = "geneve",
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[NETDEV_KIND_VXCAN] = "vxcan",
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[NETDEV_KIND_WIREGUARD] = "wireguard",
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[NETDEV_KIND_NETDEVSIM] = "netdevsim",
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};
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DEFINE_STRING_TABLE_LOOKUP(netdev_kind, NetDevKind);
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DEFINE_CONFIG_PARSE_ENUM(config_parse_netdev_kind, netdev_kind, NetDevKind, "Failed to parse netdev kind");
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static void netdev_cancel_callbacks(NetDev *netdev) {
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_cleanup_(sd_netlink_message_unrefp) sd_netlink_message *m = NULL;
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netdev_join_callback *callback;
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if (!netdev || !netdev->manager)
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return;
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rtnl_message_new_synthetic_error(netdev->manager->rtnl, -ENODEV, 0, &m);
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while ((callback = netdev->callbacks)) {
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if (m) {
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assert(callback->link);
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assert(callback->callback);
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assert(netdev->manager);
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assert(netdev->manager->rtnl);
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callback->callback(netdev->manager->rtnl, m, callback->link);
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}
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LIST_REMOVE(callbacks, netdev->callbacks, callback);
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link_unref(callback->link);
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free(callback);
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}
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}
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static void netdev_free(NetDev *netdev) {
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if (!netdev)
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return;
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netdev_cancel_callbacks(netdev);
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if (netdev->ifname && netdev->manager)
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hashmap_remove(netdev->manager->netdevs, netdev->ifname);
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free(netdev->filename);
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free(netdev->description);
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free(netdev->ifname);
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free(netdev->mac);
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condition_free_list(netdev->match_host);
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condition_free_list(netdev->match_virt);
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condition_free_list(netdev->match_kernel_cmdline);
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condition_free_list(netdev->match_kernel_version);
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condition_free_list(netdev->match_arch);
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/* Invoke the per-kind done() destructor, but only if the state field is initialized. We conditionalize that
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* because we parse .netdev files twice: once to determine the kind (with a short, minimal NetDev structure
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* allocation, with no room for per-kind fields), and once to read the kind's properties (with a full,
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* comprehensive NetDev structure allocation with enough space for whatever the specific kind needs). Now, in
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* the first case we shouldn't try to destruct the per-kind NetDev fields on destruction, in the second case we
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* should. We use the state field to discern the two cases: it's _NETDEV_STATE_INVALID on the first "raw"
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* call. */
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if (netdev->state != _NETDEV_STATE_INVALID &&
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NETDEV_VTABLE(netdev) &&
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NETDEV_VTABLE(netdev)->done)
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NETDEV_VTABLE(netdev)->done(netdev);
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free(netdev);
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}
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NetDev *netdev_unref(NetDev *netdev) {
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if (netdev && (-- netdev->n_ref <= 0))
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netdev_free(netdev);
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return NULL;
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}
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NetDev *netdev_ref(NetDev *netdev) {
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if (netdev)
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assert_se(++ netdev->n_ref >= 2);
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return netdev;
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}
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void netdev_drop(NetDev *netdev) {
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if (!netdev || netdev->state == NETDEV_STATE_LINGER)
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return;
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netdev->state = NETDEV_STATE_LINGER;
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log_netdev_debug(netdev, "netdev removed");
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netdev_cancel_callbacks(netdev);
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netdev_unref(netdev);
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return;
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}
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int netdev_get(Manager *manager, const char *name, NetDev **ret) {
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NetDev *netdev;
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assert(manager);
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assert(name);
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assert(ret);
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netdev = hashmap_get(manager->netdevs, name);
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if (!netdev) {
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*ret = NULL;
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return -ENOENT;
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}
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*ret = netdev;
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return 0;
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}
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static int netdev_enter_failed(NetDev *netdev) {
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netdev->state = NETDEV_STATE_FAILED;
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netdev_cancel_callbacks(netdev);
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return 0;
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}
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static int netdev_enslave_ready(NetDev *netdev, Link* link, sd_netlink_message_handler_t callback) {
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_cleanup_(sd_netlink_message_unrefp) sd_netlink_message *req = NULL;
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int r;
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assert(netdev);
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assert(netdev->state == NETDEV_STATE_READY);
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assert(netdev->manager);
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assert(netdev->manager->rtnl);
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assert(IN_SET(netdev->kind, NETDEV_KIND_BRIDGE, NETDEV_KIND_BOND, NETDEV_KIND_VRF));
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assert(link);
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assert(callback);
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if (link->flags & IFF_UP && netdev->kind == NETDEV_KIND_BOND) {
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log_netdev_debug(netdev, "Link '%s' was up when attempting to enslave it. Bringing link down.", link->ifname);
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r = link_down(link);
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if (r < 0)
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return log_netdev_error_errno(netdev, r, "Could not bring link down: %m");
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}
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r = sd_rtnl_message_new_link(netdev->manager->rtnl, &req, RTM_SETLINK, link->ifindex);
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if (r < 0)
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return log_netdev_error_errno(netdev, r, "Could not allocate RTM_SETLINK message: %m");
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r = sd_netlink_message_append_u32(req, IFLA_MASTER, netdev->ifindex);
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if (r < 0)
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return log_netdev_error_errno(netdev, r, "Could not append IFLA_MASTER attribute: %m");
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r = sd_netlink_call_async(netdev->manager->rtnl, req, callback, link, 0, NULL);
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if (r < 0)
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return log_netdev_error_errno(netdev, r, "Could not send rtnetlink message: %m");
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link_ref(link);
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log_netdev_debug(netdev, "Enslaving link '%s'", link->ifname);
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return 0;
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}
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static int netdev_enter_ready(NetDev *netdev) {
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netdev_join_callback *callback, *callback_next;
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int r;
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assert(netdev);
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assert(netdev->ifname);
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if (netdev->state != NETDEV_STATE_CREATING)
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return 0;
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netdev->state = NETDEV_STATE_READY;
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log_netdev_info(netdev, "netdev ready");
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LIST_FOREACH_SAFE(callbacks, callback, callback_next, netdev->callbacks) {
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/* enslave the links that were attempted to be enslaved before the
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* link was ready */
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r = netdev_enslave_ready(netdev, callback->link, callback->callback);
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if (r < 0)
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return r;
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LIST_REMOVE(callbacks, netdev->callbacks, callback);
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link_unref(callback->link);
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free(callback);
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}
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if (NETDEV_VTABLE(netdev)->post_create)
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NETDEV_VTABLE(netdev)->post_create(netdev, NULL, NULL);
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return 0;
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}
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/* callback for netdev's created without a backing Link */
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static int netdev_create_handler(sd_netlink *rtnl, sd_netlink_message *m, void *userdata) {
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_cleanup_(netdev_unrefp) NetDev *netdev = userdata;
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int r;
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assert(netdev->state != _NETDEV_STATE_INVALID);
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r = sd_netlink_message_get_errno(m);
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if (r == -EEXIST)
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log_netdev_info(netdev, "netdev exists, using existing without changing its parameters");
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else if (r < 0) {
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log_netdev_warning_errno(netdev, r, "netdev could not be created: %m");
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netdev_drop(netdev);
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return 1;
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}
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log_netdev_debug(netdev, "Created");
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return 1;
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}
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int netdev_enslave(NetDev *netdev, Link *link, sd_netlink_message_handler_t callback) {
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int r;
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assert(netdev);
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assert(netdev->manager);
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assert(netdev->manager->rtnl);
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assert(IN_SET(netdev->kind, NETDEV_KIND_BRIDGE, NETDEV_KIND_BOND, NETDEV_KIND_VRF));
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if (netdev->state == NETDEV_STATE_READY) {
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r = netdev_enslave_ready(netdev, link, callback);
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if (r < 0)
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return r;
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} else if (IN_SET(netdev->state, NETDEV_STATE_LINGER, NETDEV_STATE_FAILED)) {
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_cleanup_(sd_netlink_message_unrefp) sd_netlink_message *m = NULL;
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r = rtnl_message_new_synthetic_error(netdev->manager->rtnl, -ENODEV, 0, &m);
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if (r >= 0)
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callback(netdev->manager->rtnl, m, link);
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} else {
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/* the netdev is not yet read, save this request for when it is */
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netdev_join_callback *cb;
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cb = new0(netdev_join_callback, 1);
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if (!cb)
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return log_oom();
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cb->callback = callback;
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cb->link = link;
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link_ref(link);
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LIST_PREPEND(callbacks, netdev->callbacks, cb);
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log_netdev_debug(netdev, "Will enslave '%s', when ready", link->ifname);
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}
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return 0;
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}
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int netdev_set_ifindex(NetDev *netdev, sd_netlink_message *message) {
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uint16_t type;
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const char *kind;
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const char *received_kind;
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const char *received_name;
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int r, ifindex;
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assert(netdev);
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assert(message);
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r = sd_netlink_message_get_type(message, &type);
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if (r < 0)
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return log_netdev_error_errno(netdev, r, "Could not get rtnl message type: %m");
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if (type != RTM_NEWLINK) {
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log_netdev_error(netdev, "Cannot set ifindex from unexpected rtnl message type.");
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return -EINVAL;
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}
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r = sd_rtnl_message_link_get_ifindex(message, &ifindex);
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if (r < 0) {
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log_netdev_error_errno(netdev, r, "Could not get ifindex: %m");
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netdev_enter_failed(netdev);
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return r;
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} else if (ifindex <= 0) {
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log_netdev_error(netdev, "Got invalid ifindex: %d", ifindex);
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netdev_enter_failed(netdev);
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return -EINVAL;
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}
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if (netdev->ifindex > 0) {
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if (netdev->ifindex != ifindex) {
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log_netdev_error(netdev, "Could not set ifindex to %d, already set to %d",
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ifindex, netdev->ifindex);
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netdev_enter_failed(netdev);
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return -EEXIST;
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} else
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/* ifindex already set to the same for this netdev */
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return 0;
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}
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r = sd_netlink_message_read_string(message, IFLA_IFNAME, &received_name);
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if (r < 0)
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return log_netdev_error_errno(netdev, r, "Could not get IFNAME: %m");
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if (!streq(netdev->ifname, received_name)) {
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log_netdev_error(netdev, "Received newlink with wrong IFNAME %s", received_name);
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netdev_enter_failed(netdev);
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return r;
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}
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r = sd_netlink_message_enter_container(message, IFLA_LINKINFO);
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if (r < 0)
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return log_netdev_error_errno(netdev, r, "Could not get LINKINFO: %m");
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r = sd_netlink_message_read_string(message, IFLA_INFO_KIND, &received_kind);
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if (r < 0)
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return log_netdev_error_errno(netdev, r, "Could not get KIND: %m");
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r = sd_netlink_message_exit_container(message);
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if (r < 0)
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return log_netdev_error_errno(netdev, r, "Could not exit container: %m");
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if (netdev->kind == NETDEV_KIND_TAP)
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/* the kernel does not distinguish between tun and tap */
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kind = "tun";
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else {
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kind = netdev_kind_to_string(netdev->kind);
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if (!kind) {
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log_netdev_error(netdev, "Could not get kind");
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netdev_enter_failed(netdev);
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return -EINVAL;
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}
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}
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if (!streq(kind, received_kind)) {
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log_netdev_error(netdev,
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"Received newlink with wrong KIND %s, "
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"expected %s", received_kind, kind);
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netdev_enter_failed(netdev);
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return r;
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}
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netdev->ifindex = ifindex;
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log_netdev_debug(netdev, "netdev has index %d", netdev->ifindex);
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netdev_enter_ready(netdev);
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return 0;
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}
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#define HASH_KEY SD_ID128_MAKE(52,e1,45,bd,00,6f,29,96,21,c6,30,6d,83,71,04,48)
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int netdev_get_mac(const char *ifname, struct ether_addr **ret) {
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_cleanup_free_ struct ether_addr *mac = NULL;
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uint64_t result;
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size_t l, sz;
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uint8_t *v;
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int r;
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assert(ifname);
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assert(ret);
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mac = new0(struct ether_addr, 1);
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if (!mac)
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return -ENOMEM;
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l = strlen(ifname);
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sz = sizeof(sd_id128_t) + l;
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v = alloca(sz);
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/* fetch some persistent data unique to the machine */
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r = sd_id128_get_machine((sd_id128_t*) v);
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if (r < 0)
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return r;
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/* combine with some data unique (on this machine) to this
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* netdev */
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|
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,
|
|
sd_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) {
|
|
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 = sd_netlink_call_async(netdev->manager->rtnl, m, callback, link, 0, NULL);
|
|
if (r < 0)
|
|
return log_netdev_error_errno(netdev, r, "Could not send rtnetlink message: %m");
|
|
|
|
link_ref(link);
|
|
} else {
|
|
r = sd_netlink_call_async(netdev->manager->rtnl, m, netdev_create_handler, netdev, 0, NULL);
|
|
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;
|
|
}
|
|
|
|
/* the callback must be called, possibly after a timeout, as otherwise the Link will hang */
|
|
int netdev_join(NetDev *netdev, Link *link, sd_netlink_message_handler_t callback) {
|
|
int r;
|
|
|
|
assert(netdev);
|
|
assert(netdev->manager);
|
|
assert(netdev->manager->rtnl);
|
|
assert(NETDEV_VTABLE(netdev));
|
|
|
|
switch (NETDEV_VTABLE(netdev)->create_type) {
|
|
case NETDEV_CREATE_MASTER:
|
|
r = netdev_enslave(netdev, link, callback);
|
|
if (r < 0)
|
|
return r;
|
|
|
|
break;
|
|
case NETDEV_CREATE_STACKED:
|
|
r = netdev_create(netdev, link, callback);
|
|
if (r < 0)
|
|
return r;
|
|
|
|
break;
|
|
default:
|
|
assert_not_reached("Can not join independent netdev");
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int netdev_load_one(Manager *manager, const char *filename) {
|
|
_cleanup_(netdev_unrefp) NetDev *netdev_raw = NULL, *netdev = NULL;
|
|
_cleanup_fclose_ FILE *file = NULL;
|
|
const char *dropin_dirname;
|
|
bool independent = false;
|
|
int r;
|
|
|
|
assert(manager);
|
|
assert(filename);
|
|
|
|
file = fopen(filename, "re");
|
|
if (!file) {
|
|
if (errno == ENOENT)
|
|
return 0;
|
|
|
|
return -errno;
|
|
}
|
|
|
|
if (null_or_empty_fd(fileno(file))) {
|
|
log_debug("Skipping empty file: %s", filename);
|
|
return 0;
|
|
}
|
|
|
|
netdev_raw = new0(NetDev, 1);
|
|
if (!netdev_raw)
|
|
return log_oom();
|
|
|
|
netdev_raw->n_ref = 1;
|
|
netdev_raw->kind = _NETDEV_KIND_INVALID;
|
|
netdev_raw->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(filename, network_dirs, dropin_dirname,
|
|
"Match\0NetDev\0",
|
|
config_item_perf_lookup, network_netdev_gperf_lookup,
|
|
CONFIG_PARSE_WARN|CONFIG_PARSE_RELAXED, netdev_raw);
|
|
if (r < 0)
|
|
return r;
|
|
|
|
/* skip out early if configuration does not match the environment */
|
|
if (net_match_config(NULL, NULL, NULL, NULL, NULL,
|
|
netdev_raw->match_host, netdev_raw->match_virt,
|
|
netdev_raw->match_kernel_cmdline, netdev_raw->match_kernel_version,
|
|
netdev_raw->match_arch,
|
|
NULL, NULL, NULL, NULL, NULL, NULL) <= 0)
|
|
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;
|
|
}
|
|
|
|
r = fseek(file, 0, SEEK_SET);
|
|
if (r < 0)
|
|
return -errno;
|
|
|
|
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(NULL, filename, file,
|
|
NETDEV_VTABLE(netdev)->sections,
|
|
config_item_perf_lookup, network_netdev_gperf_lookup,
|
|
CONFIG_PARSE_WARN, netdev);
|
|
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->kind != NETDEV_KIND_VLAN) {
|
|
r = netdev_get_mac(netdev->ifname, &netdev->mac);
|
|
if (r < 0)
|
|
return log_error_errno(r, "Failed to generate predictable MAC address for %s: %m", netdev->ifname);
|
|
}
|
|
|
|
r = hashmap_put(netdev->manager->netdevs, netdev->ifname, netdev);
|
|
if (r < 0)
|
|
return r;
|
|
|
|
LIST_HEAD_INIT(netdev->callbacks);
|
|
|
|
log_netdev_debug(netdev, "loaded %s", netdev_kind_to_string(netdev->kind));
|
|
|
|
switch (NETDEV_VTABLE(netdev)->create_type) {
|
|
case NETDEV_CREATE_MASTER:
|
|
case NETDEV_CREATE_INDEPENDENT:
|
|
r = netdev_create(netdev, NULL, NULL);
|
|
if (r < 0)
|
|
return r;
|
|
|
|
break;
|
|
default:
|
|
break;
|
|
}
|
|
|
|
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;
|
|
default:
|
|
break;
|
|
}
|
|
|
|
if (independent) {
|
|
r = netdev_create(netdev, NULL, NULL);
|
|
if (r < 0)
|
|
return r;
|
|
}
|
|
|
|
netdev = NULL;
|
|
|
|
return 0;
|
|
}
|
|
|
|
int netdev_load(Manager *manager) {
|
|
_cleanup_strv_free_ char **files = NULL;
|
|
NetDev *netdev;
|
|
char **f;
|
|
int r;
|
|
|
|
assert(manager);
|
|
|
|
while ((netdev = hashmap_first(manager->netdevs)))
|
|
netdev_unref(netdev);
|
|
|
|
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_BACKWARDS(f, files) {
|
|
r = netdev_load_one(manager, *f);
|
|
if (r < 0)
|
|
return r;
|
|
}
|
|
|
|
return 0;
|
|
}
|