src/network/networkd-wait-online-link.c

	networkd-wait-online-link.c revision 1c4baffc1895809bae9ac36b670af90a4cb9cd7d
124baf9a815afca02e01743867baf8319557e921kenneth_suter/*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/
124baf9a815afca02e01743867baf8319557e921kenneth_suter
124baf9a815afca02e01743867baf8319557e921kenneth_suter/***
124baf9a815afca02e01743867baf8319557e921kenneth_suter  This file is part of systemd.
124baf9a815afca02e01743867baf8319557e921kenneth_suter
124baf9a815afca02e01743867baf8319557e921kenneth_suter  Copyright 2014 Lennart Poettering
124baf9a815afca02e01743867baf8319557e921kenneth_suter  Copyright 2014 Tom Gundersen
124baf9a815afca02e01743867baf8319557e921kenneth_suter
124baf9a815afca02e01743867baf8319557e921kenneth_suter  systemd is free software; you can redistribute it and/or modify it
124baf9a815afca02e01743867baf8319557e921kenneth_suter  under the terms of the GNU Lesser General Public License as published by
124baf9a815afca02e01743867baf8319557e921kenneth_suter  the Free Software Foundation; either version 2.1 of the License, or
124baf9a815afca02e01743867baf8319557e921kenneth_suter  (at your option) any later version.
124baf9a815afca02e01743867baf8319557e921kenneth_suter
124baf9a815afca02e01743867baf8319557e921kenneth_suter  systemd is distributed in the hope that it will be useful, but
124baf9a815afca02e01743867baf8319557e921kenneth_suter  WITHOUT ANY WARRANTY; without even the implied warranty of
124baf9a815afca02e01743867baf8319557e921kenneth_suter  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
124baf9a815afca02e01743867baf8319557e921kenneth_suter  Lesser General Public License for more details.
124baf9a815afca02e01743867baf8319557e921kenneth_suter
124baf9a815afca02e01743867baf8319557e921kenneth_suter  You should have received a copy of the GNU Lesser General Public License
124baf9a815afca02e01743867baf8319557e921kenneth_suter  along with systemd; If not, see <http://www.gnu.org/licenses/>.
124baf9a815afca02e01743867baf8319557e921kenneth_suter***/
124baf9a815afca02e01743867baf8319557e921kenneth_suter
124baf9a815afca02e01743867baf8319557e921kenneth_suter
124baf9a815afca02e01743867baf8319557e921kenneth_suter#include "sd-network.h"
65e99be301d5a19db33f25841f671756e8dbb9b5ludovicp
124baf9a815afca02e01743867baf8319557e921kenneth_suter#include "networkd-wait-online-link.h"
124baf9a815afca02e01743867baf8319557e921kenneth_suter
124baf9a815afca02e01743867baf8319557e921kenneth_suterint link_new(Manager *m, Link **ret, int ifindex, const char *ifname) {
124baf9a815afca02e01743867baf8319557e921kenneth_suter        _cleanup_(link_freep) Link *l = NULL;
124baf9a815afca02e01743867baf8319557e921kenneth_suter        int r;
124baf9a815afca02e01743867baf8319557e921kenneth_suter
124baf9a815afca02e01743867baf8319557e921kenneth_suter        assert(m);
24d6db06810f2ea747f6dff60d483e4fca3aaa13davidely        assert(ifindex > 0);
124baf9a815afca02e01743867baf8319557e921kenneth_suter
9aa7345ed04cb0b19c9302863d6012606c67c0c6kenneth_suter        r = hashmap_ensure_allocated(&m->links, NULL);
9aa7345ed04cb0b19c9302863d6012606c67c0c6kenneth_suter        if (r < 0)
124baf9a815afca02e01743867baf8319557e921kenneth_suter                return r;
124baf9a815afca02e01743867baf8319557e921kenneth_suter
124baf9a815afca02e01743867baf8319557e921kenneth_suter        r = hashmap_ensure_allocated(&m->links_by_name, &string_hash_ops);
24d6db06810f2ea747f6dff60d483e4fca3aaa13davidely        if (r < 0)
9aa7345ed04cb0b19c9302863d6012606c67c0c6kenneth_suter                return r;
9aa7345ed04cb0b19c9302863d6012606c67c0c6kenneth_suter
9aa7345ed04cb0b19c9302863d6012606c67c0c6kenneth_suter        l = new0(Link, 1);
9aa7345ed04cb0b19c9302863d6012606c67c0c6kenneth_suter        if (!l)
b4d83f40b246f01d3fce58e93251be9776f36ac1kenneth_suter                return -ENOMEM;
9aa7345ed04cb0b19c9302863d6012606c67c0c6kenneth_suter
124baf9a815afca02e01743867baf8319557e921kenneth_suter        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);

        free(l->operational_state);
        l->operational_state = NULL;

        sd_network_link_get_operational_state(l->ifindex, &l->operational_state);

        free(l->state);
        l->state = NULL;

        sd_network_link_get_setup_state(l->ifindex, &l->state);

        return 0;
}