static NMActStageReturn
act_stage1_prepare (NMDevice *dev, NMDeviceStateReason *reason)
{
NMActStageReturn ret;
NMActRequest *req;
NMConnection *connection;
NMSettingInfiniband *s_infiniband;
const char *transport_mode;
char *mode_path;
gboolean ok;
g_return_val_if_fail (reason != NULL, NM_ACT_STAGE_RETURN_FAILURE);
ret = NM_DEVICE_CLASS (nm_device_infiniband_parent_class)->act_stage1_prepare (dev, reason);
if (ret != NM_ACT_STAGE_RETURN_SUCCESS)
return ret;
req = nm_device_get_act_request (dev);
g_return_val_if_fail (req != NULL, NM_ACT_STAGE_RETURN_FAILURE);
connection = nm_act_request_get_connection (req);
g_assert (connection);
s_infiniband = nm_connection_get_setting_infiniband (connection);
g_assert (s_infiniband);
transport_mode = nm_setting_infiniband_get_transport_mode (s_infiniband);
mode_path = g_strdup_printf ("/sys/class/net/%s/mode",
ASSERT_VALID_PATH_COMPONENT (nm_device_get_iface (dev)));
if (!g_file_test (mode_path, G_FILE_TEST_EXISTS)) {
g_free (mode_path);
if (!strcmp (transport_mode, "datagram"))
return NM_ACT_STAGE_RETURN_SUCCESS;
else {
*reason = NM_DEVICE_STATE_REASON_INFINIBAND_MODE;
return NM_ACT_STAGE_RETURN_FAILURE;
}
}
ok = nm_platform_sysctl_set (mode_path, transport_mode);
g_free (mode_path);
if (!ok) {
*reason = NM_DEVICE_STATE_REASON_CONFIG_FAILED;
return NM_ACT_STAGE_RETURN_FAILURE;
}
return NM_ACT_STAGE_RETURN_SUCCESS;
}
int
main (int argc, char *argv[])
{
char *bad_domains = NULL;
GError *error = NULL;
gboolean wrote_pidfile = FALSE;
gs_free char *pidfile = NULL;
gs_unref_object NMDhcpClient *dhcp4_client = NULL;
gs_unref_object NMRDisc *rdisc = NULL;
GByteArray *hwaddr = NULL;
size_t hwaddr_len = 0;
gconstpointer tmp;
gs_free NMUtilsIPv6IfaceId *iid = NULL;
guint sd_id;
nm_g_type_init ();
setpgid (getpid (), getpid ());
do_early_setup (&argc, &argv);
if (global_opt.g_fatal_warnings) {
GLogLevelFlags fatal_mask;
fatal_mask = g_log_set_always_fatal (G_LOG_FATAL_MASK);
fatal_mask |= G_LOG_LEVEL_WARNING | G_LOG_LEVEL_CRITICAL;
g_log_set_always_fatal (fatal_mask);
}
if (global_opt.show_version) {
fprintf (stdout, NM_DIST_VERSION "\n");
exit (0);
}
nm_main_utils_ensure_root ();
if (!global_opt.ifname || !global_opt.uuid) {
fprintf (stderr, _("An interface name and UUID are required\n"));
exit (1);
}
ifindex = if_nametoindex (global_opt.ifname);
if (ifindex <= 0) {
fprintf (stderr, _("Failed to find interface index for %s (%s)\n"), global_opt.ifname, strerror (errno));
exit (1);
}
pidfile = g_strdup_printf (NMIH_PID_FILE_FMT, ifindex);
nm_main_utils_ensure_not_running_pidfile (pidfile);
nm_main_utils_ensure_rundir ();
if (!nm_logging_setup (global_opt.opt_log_level,
global_opt.opt_log_domains,
&bad_domains,
&error)) {
fprintf (stderr,
_("%s. Please use --help to see a list of valid options.\n"),
error->message);
exit (1);
} else if (bad_domains) {
fprintf (stderr,
_("Ignoring unrecognized log domain(s) '%s' passed on command line.\n"),
bad_domains);
g_clear_pointer (&bad_domains, g_free);
}
if (global_opt.become_daemon && !global_opt.debug) {
if (daemon (0, 0) < 0) {
int saved_errno;
saved_errno = errno;
fprintf (stderr, _("Could not daemonize: %s [error %u]\n"),
g_strerror (saved_errno),
saved_errno);
exit (1);
}
if (nm_main_utils_write_pidfile (pidfile))
wrote_pidfile = TRUE;
}
/* Set up unix signal handling - before creating threads, but after daemonizing! */
main_loop = g_main_loop_new (NULL, FALSE);
setup_signals ();
nm_logging_syslog_openlog (global_opt.logging_backend
? global_opt.logging_backend
: (global_opt.debug ? "debug" : NULL));
nm_log_info (LOGD_CORE, "nm-iface-helper (version " NM_DIST_VERSION ") is starting...");
/* Set up platform interaction layer */
nm_linux_platform_setup ();
tmp = nm_platform_link_get_address (NM_PLATFORM_GET, ifindex, &hwaddr_len);
if (tmp) {
hwaddr = g_byte_array_sized_new (hwaddr_len);
g_byte_array_append (hwaddr, tmp, hwaddr_len);
}
if (global_opt.iid_str) {
GBytes *bytes;
gsize ignored = 0;
bytes = nm_utils_hexstr2bin (global_opt.iid_str);
if (!bytes || g_bytes_get_size (bytes) != sizeof (*iid)) {
fprintf (stderr, _("(%s): Invalid IID %s\n"), global_opt.ifname, global_opt.iid_str);
exit (1);
}
iid = g_bytes_unref_to_data (bytes, &ignored);
}
if (global_opt.dhcp4_address) {
nm_platform_sysctl_set (NM_PLATFORM_GET, nm_utils_ip4_property_path (global_opt.ifname, "promote_secondaries"), "1");
dhcp4_client = nm_dhcp_manager_start_ip4 (nm_dhcp_manager_get (),
global_opt.ifname,
ifindex,
hwaddr,
global_opt.uuid,
global_opt.priority_v4,
!!global_opt.dhcp4_hostname,
global_opt.dhcp4_hostname,
global_opt.dhcp4_fqdn,
global_opt.dhcp4_clientid,
45,
NULL,
global_opt.dhcp4_address);
g_assert (dhcp4_client);
g_signal_connect (dhcp4_client,
NM_DHCP_CLIENT_SIGNAL_STATE_CHANGED,
G_CALLBACK (dhcp4_state_changed),
NULL);
}
if (global_opt.slaac) {
nm_platform_link_set_user_ipv6ll_enabled (NM_PLATFORM_GET, ifindex, TRUE);
rdisc = nm_lndp_rdisc_new (NM_PLATFORM_GET, ifindex, global_opt.ifname, global_opt.uuid, global_opt.addr_gen_mode, NULL);
g_assert (rdisc);
if (iid)
nm_rdisc_set_iid (rdisc, *iid);
nm_platform_sysctl_set (NM_PLATFORM_GET, nm_utils_ip6_property_path (global_opt.ifname, "accept_ra"), "1");
nm_platform_sysctl_set (NM_PLATFORM_GET, nm_utils_ip6_property_path (global_opt.ifname, "accept_ra_defrtr"), "0");
nm_platform_sysctl_set (NM_PLATFORM_GET, nm_utils_ip6_property_path (global_opt.ifname, "accept_ra_pinfo"), "0");
nm_platform_sysctl_set (NM_PLATFORM_GET, nm_utils_ip6_property_path (global_opt.ifname, "accept_ra_rtr_pref"), "0");
g_signal_connect (NM_PLATFORM_GET,
NM_PLATFORM_SIGNAL_IP6_ADDRESS_CHANGED,
G_CALLBACK (ip6_address_changed),
rdisc);
g_signal_connect (rdisc,
NM_RDISC_CONFIG_CHANGED,
G_CALLBACK (rdisc_config_changed),
NULL);
g_signal_connect (rdisc,
NM_RDISC_RA_TIMEOUT,
G_CALLBACK (rdisc_ra_timeout),
NULL);
nm_rdisc_start (rdisc);
}
sd_id = nm_sd_event_attach_default ();
g_main_loop_run (main_loop);
g_clear_pointer (&hwaddr, g_byte_array_unref);
if (pidfile && wrote_pidfile)
unlink (pidfile);
nm_log_info (LOGD_CORE, "exiting");
nm_clear_g_source (&sd_id);
exit (0);
}
static void
rdisc_config_changed (NMRDisc *rdisc, NMRDiscConfigMap changed, gpointer user_data)
{
static NMIP6Config *rdisc_config = NULL;
NMIP6Config *existing;
static int system_support = -1;
guint32 ifa_flags = 0x00;
int i;
if (system_support == -1) {
/*
* Check, whether kernel is recent enough, to help user space handling RA.
* If it's not supported, we have no ipv6-privacy and must add autoconf
* addresses as /128.
* The reason for the /128 is to prevent the kernel
* from adding a prefix route for this address.
**/
system_support = nm_platform_check_support_kernel_extended_ifa_flags (NM_PLATFORM_GET);
}
if (system_support)
ifa_flags = IFA_F_NOPREFIXROUTE;
if (global_opt.tempaddr == NM_SETTING_IP6_CONFIG_PRIVACY_PREFER_TEMP_ADDR
|| global_opt.tempaddr == NM_SETTING_IP6_CONFIG_PRIVACY_PREFER_PUBLIC_ADDR)
{
/* without system_support, this flag will be ignored. Still set it, doesn't seem to do any harm. */
ifa_flags |= IFA_F_MANAGETEMPADDR;
}
existing = nm_ip6_config_capture (ifindex, FALSE, global_opt.tempaddr);
if (rdisc_config)
nm_ip6_config_subtract (existing, rdisc_config);
else
rdisc_config = nm_ip6_config_new (ifindex);
if (changed & NM_RDISC_CONFIG_GATEWAYS) {
/* Use the first gateway as ordered in router discovery cache. */
if (rdisc->gateways->len) {
NMRDiscGateway *gateway = &g_array_index (rdisc->gateways, NMRDiscGateway, 0);
nm_ip6_config_set_gateway (rdisc_config, &gateway->address);
} else
nm_ip6_config_set_gateway (rdisc_config, NULL);
}
if (changed & NM_RDISC_CONFIG_ADDRESSES) {
/* Rebuild address list from router discovery cache. */
nm_ip6_config_reset_addresses (rdisc_config);
/* rdisc->addresses contains at most max_addresses entries.
* This is different from what the kernel does, which
* also counts static and temporary addresses when checking
* max_addresses.
**/
for (i = 0; i < rdisc->addresses->len; i++) {
NMRDiscAddress *discovered_address = &g_array_index (rdisc->addresses, NMRDiscAddress, i);
NMPlatformIP6Address address;
memset (&address, 0, sizeof (address));
address.address = discovered_address->address;
address.plen = system_support ? 64 : 128;
address.timestamp = discovered_address->timestamp;
address.lifetime = discovered_address->lifetime;
address.preferred = discovered_address->preferred;
if (address.preferred > address.lifetime)
address.preferred = address.lifetime;
address.source = NM_IP_CONFIG_SOURCE_RDISC;
address.n_ifa_flags = ifa_flags;
nm_ip6_config_add_address (rdisc_config, &address);
}
}
if (changed & NM_RDISC_CONFIG_ROUTES) {
/* Rebuild route list from router discovery cache. */
nm_ip6_config_reset_routes (rdisc_config);
for (i = 0; i < rdisc->routes->len; i++) {
NMRDiscRoute *discovered_route = &g_array_index (rdisc->routes, NMRDiscRoute, i);
NMPlatformIP6Route route;
/* Only accept non-default routes. The router has no idea what the
* local configuration or user preferences are, so sending routes
* with a prefix length of 0 is quite rude and thus ignored.
*/
if ( discovered_route->plen > 0
&& discovered_route->plen <= 128) {
memset (&route, 0, sizeof (route));
route.network = discovered_route->network;
route.plen = discovered_route->plen;
route.gateway = discovered_route->gateway;
route.source = NM_IP_CONFIG_SOURCE_RDISC;
route.metric = global_opt.priority_v6;
nm_ip6_config_add_route (rdisc_config, &route);
}
}
}
if (changed & NM_RDISC_CONFIG_DHCP_LEVEL) {
/* Unsupported until systemd DHCPv6 is ready */
}
if (changed & NM_RDISC_CONFIG_HOP_LIMIT)
nm_platform_sysctl_set_ip6_hop_limit_safe (NM_PLATFORM_GET, global_opt.ifname, rdisc->hop_limit);
if (changed & NM_RDISC_CONFIG_MTU) {
char val[16];
g_snprintf (val, sizeof (val), "%d", rdisc->mtu);
nm_platform_sysctl_set (NM_PLATFORM_GET, nm_utils_ip6_property_path (global_opt.ifname, "mtu"), val);
}
nm_ip6_config_merge (existing, rdisc_config, NM_IP_CONFIG_MERGE_DEFAULT);
if (!nm_ip6_config_commit (existing, ifindex, TRUE))
nm_log_warn (LOGD_IP6, "(%s): failed to apply IPv6 config", global_opt.ifname);
}
static gboolean
do_sysctl_set (char **argv)
{
return nm_platform_sysctl_set (NM_PLATFORM_GET, argv[0], argv[1]);
}
static gboolean
do_sysctl_set (char **argv)
{
return nm_platform_sysctl_set (argv[0], argv[1]);
}