/*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/ /*** This file is part of systemd. Copyright 2014 Lennart Poettering Copyright 2014 Tom Gundersen systemd is free software; you can redistribute it and/or modify it under the terms of the GNU Lesser General Public License as published by the Free Software Foundation; either version 2.1 of the License, or (at your option) any later version. systemd is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public License for more details. You should have received a copy of the GNU Lesser General Public License along with systemd; If not, see <http://www.gnu.org/licenses/>. ***/ #include "sd-network.h" #include "alloc-util.h" #include "networkd-wait-online-link.h" #include "string-util.h" int link_new(Manager *m, Link **ret, int ifindex, const char *ifname) { _cleanup_(link_freep) Link *l = NULL; int r; assert(m); assert(ifindex > 0); r = hashmap_ensure_allocated(&m->links, NULL); if (r < 0) return r; r = hashmap_ensure_allocated(&m->links_by_name, &string_hash_ops); if (r < 0) return r; l = new0(Link, 1); if (!l) return -ENOMEM; l->manager = m; l->ifname = strdup(ifname); if (!l->ifname) return -ENOMEM; r = hashmap_put(m->links_by_name, l->ifname, l); if (r < 0) return r; l->ifindex = ifindex; r = hashmap_put(m->links, INT_TO_PTR(ifindex), l); if (r < 0) return r; if (ret) *ret = l; l = NULL; return 0; } Link *link_free(Link *l) { if (!l) return NULL; if (l->manager) { hashmap_remove(l->manager->links, INT_TO_PTR(l->ifindex)); hashmap_remove(l->manager->links_by_name, l->ifname); } free(l->ifname); free(l); return NULL; } int link_update_rtnl(Link *l, sd_netlink_message *m) { const char *ifname; int r; assert(l); assert(l->manager); assert(m); r = sd_rtnl_message_link_get_flags(m, &l->flags); if (r < 0) return r; r = sd_netlink_message_read_string(m, IFLA_IFNAME, &ifname); if (r < 0) return r; if (!streq(l->ifname, ifname)) { char *new_ifname; new_ifname = strdup(ifname); if (!new_ifname) return -ENOMEM; hashmap_remove(l->manager->links_by_name, l->ifname); free(l->ifname); l->ifname = new_ifname; r = hashmap_put(l->manager->links_by_name, l->ifname, l); if (r < 0) return r; } return 0; } int link_update_monitor(Link *l) { assert(l); l->operational_state = mfree(l->operational_state); sd_network_link_get_operational_state(l->ifindex, &l->operational_state); l->state = mfree(l->state); sd_network_link_get_setup_state(l->ifindex, &l->state); return 0; }