166 lines
4.9 KiB
C
166 lines
4.9 KiB
C
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/*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/
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/***
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This file is part of systemd.
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Copyright (C) 2014 Intel Corporation. All rights reserved.
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systemd is free software; you can redistribute it and/or modify it
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under the terms of the GNU Lesser General Public License as published by
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the Free Software Foundation; either version 2.1 of the License, or
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(at your option) any later version.
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systemd is distributed in the hope that it will be useful, but
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WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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Lesser General Public License for more details.
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You should have received a copy of the GNU Lesser General Public License
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along with systemd; If not, see <http://www.gnu.org/licenses/>.
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***/
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#include <netinet/ether.h>
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#include <linux/if.h>
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#include "networkd-link.h"
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#include "network-internal.h"
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#include "sd-icmp6-nd.h"
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#include "sd-dhcp6-client.h"
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static void dhcp6_handler(sd_dhcp6_client *client, int event, void *userdata) {
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Link *link = userdata;
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assert(link);
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assert(link->network);
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assert(link->manager);
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if (IN_SET(link->state, LINK_STATE_FAILED, LINK_STATE_LINGER))
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return;
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switch(event) {
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case DHCP6_EVENT_STOP:
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case DHCP6_EVENT_RESEND_EXPIRE:
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case DHCP6_EVENT_RETRANS_MAX:
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case DHCP6_EVENT_IP_ACQUIRE:
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log_link_debug(link, "DHCPv6 event %d", event);
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break;
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default:
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if (event < 0)
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log_link_warning(link, "DHCPv6 error: %s",
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strerror(-event));
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else
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log_link_warning(link, "DHCPv6 unknown event: %d",
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event);
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return;
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}
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}
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static int dhcp6_configure(Link *link) {
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int r;
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assert_return(link, -EINVAL);
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if (link->dhcp6_client)
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return 0;
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r = sd_dhcp6_client_new(&link->dhcp6_client);
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if (r < 0)
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return r;
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r = sd_dhcp6_client_attach_event(link->dhcp6_client, NULL, 0);
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if (r < 0) {
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link->dhcp6_client = sd_dhcp6_client_unref(link->dhcp6_client);
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return r;
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}
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r = sd_dhcp6_client_set_mac(link->dhcp6_client,
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(const uint8_t *) &link->mac,
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sizeof (link->mac), ARPHRD_ETHER);
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if (r < 0) {
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link->dhcp6_client = sd_dhcp6_client_unref(link->dhcp6_client);
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return r;
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}
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r = sd_dhcp6_client_set_index(link->dhcp6_client, link->ifindex);
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if (r < 0) {
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link->dhcp6_client = sd_dhcp6_client_unref(link->dhcp6_client);
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return r;
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}
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r = sd_dhcp6_client_set_callback(link->dhcp6_client, dhcp6_handler,
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link);
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if (r < 0) {
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link->dhcp6_client = sd_dhcp6_client_unref(link->dhcp6_client);
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return r;
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}
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r = sd_dhcp6_client_start(link->dhcp6_client);
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if (r < 0)
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link->dhcp6_client = sd_dhcp6_client_unref(link->dhcp6_client);
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return r;
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}
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static void icmp6_router_handler(sd_icmp6_nd *nd, int event, void *userdata) {
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Link *link = userdata;
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assert(link);
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assert(link->network);
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assert(link->manager);
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if (IN_SET(link->state, LINK_STATE_FAILED, LINK_STATE_LINGER))
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return;
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switch(event) {
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case ICMP6_EVENT_ROUTER_ADVERTISMENT_NONE:
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case ICMP6_EVENT_ROUTER_ADVERTISMENT_OTHER:
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return;
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case ICMP6_EVENT_ROUTER_ADVERTISMENT_TIMEOUT:
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case ICMP6_EVENT_ROUTER_ADVERTISMENT_MANAGED:
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break;
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default:
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if (event < 0)
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log_link_warning(link, "ICMPv6 error: %s",
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strerror(-event));
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else
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log_link_warning(link, "ICMPv6 unknown event: %d",
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event);
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return;
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}
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dhcp6_configure(link);
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}
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int icmp6_configure(Link *link) {
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int r;
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assert_return(link, -EINVAL);
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r = sd_icmp6_nd_new(&link->icmp6_router_discovery);
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if (r < 0)
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return r;
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r = sd_icmp6_nd_attach_event(link->icmp6_router_discovery, NULL, 0);
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if (r < 0)
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return r;
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r = sd_icmp6_nd_set_mac(link->icmp6_router_discovery, &link->mac);
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if (r < 0)
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return r;
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r = sd_icmp6_nd_set_index(link->icmp6_router_discovery, link->ifindex);
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if (r < 0)
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return r;
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r = sd_icmp6_nd_set_callback(link->icmp6_router_discovery,
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icmp6_router_handler, link);
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return r;
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}
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