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NetworkManager/src/ndisc/nm-ndisc.c
Fernando Gont 2da092b592 IPv6 SLAAC: Honor small PIO Valid Lifetimes 
This commit implements Section 4.2 of
<https://tools.ietf.org/html/draft-gont-6man-slaac-renum-05>, to improve the
reaction of IPv6 SLAAC to renumbering events.

Namely:

* It honors PIO Valid Lifetimes < 2 hours, deviating from item "e)"
  (pp. 19-20) of Section 5.5.3 of RFC4862.

[thaller@redhat.com: squash commits and adjust unit test]

https://gitlab.freedesktop.org/NetworkManager/NetworkManager/-/merge_requests/454
2020-04-02 13:19:13 +02:00

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// SPDX-License-Identifier: GPL-2.0+
/*
* Copyright (C) 2013 Red Hat, Inc.
*/
#include "nm-default.h"
#include "nm-ndisc.h"
#include <stdlib.h>
#include <arpa/inet.h>
#include "nm-setting-ip6-config.h"
#include "nm-ndisc-private.h"
#include "nm-utils.h"
#include "platform/nm-platform.h"
#include "platform/nmp-netns.h"
#define _NMLOG_PREFIX_NAME "ndisc"
/*****************************************************************************/
struct _NMNDiscPrivate {
/* this *must* be the first field. */
NMNDiscDataInternal rdata;
union {
gint32 solicitations_left;
gint32 announcements_left;
};
union {
guint send_rs_id;
guint send_ra_id;
};
union {
gint32 last_rs;
gint32 last_ra;
};
guint ra_timeout_id; /* first RA timeout */
guint timeout_id; /* prefix/dns/etc lifetime timeout */
char *last_error;
NMUtilsIPv6IfaceId iid;
/* immutable values: */
int ifindex;
char *ifname;
char *network_id;
NMSettingIP6ConfigAddrGenMode addr_gen_mode;
NMUtilsStableType stable_type;
gint32 ra_timeout;
gint32 max_addresses;
gint32 router_solicitations;
gint32 router_solicitation_interval;
NMNDiscNodeType node_type;
NMPlatform *platform;
NMPNetns *netns;
};
typedef struct _NMNDiscPrivate NMNDiscPrivate;
NM_GOBJECT_PROPERTIES_DEFINE_BASE (
PROP_PLATFORM,
PROP_IFINDEX,
PROP_IFNAME,
PROP_STABLE_TYPE,
PROP_NETWORK_ID,
PROP_ADDR_GEN_MODE,
PROP_MAX_ADDRESSES,
PROP_RA_TIMEOUT,
PROP_ROUTER_SOLICITATIONS,
PROP_ROUTER_SOLICITATION_INTERVAL,
PROP_NODE_TYPE,
);
enum {
CONFIG_RECEIVED,
RA_TIMEOUT_SIGNAL,
LAST_SIGNAL
};
static guint signals[LAST_SIGNAL] = { 0 };
G_DEFINE_TYPE (NMNDisc, nm_ndisc, G_TYPE_OBJECT)
#define NM_NDISC_GET_PRIVATE(self) _NM_GET_PRIVATE_PTR(self, NMNDisc, NM_IS_NDISC)
/*****************************************************************************/
static void _config_changed_log (NMNDisc *ndisc, NMNDiscConfigMap changed);
/*****************************************************************************/
static guint8
_preference_to_priority (NMIcmpv6RouterPref pref)
{
switch (pref) {
case NM_ICMPV6_ROUTER_PREF_LOW:
return 1;
case NM_ICMPV6_ROUTER_PREF_MEDIUM:
return 2;
case NM_ICMPV6_ROUTER_PREF_HIGH:
return 3;
case NM_ICMPV6_ROUTER_PREF_INVALID:
break;
}
return 0;
}
/*****************************************************************************/
/* we rely on the fact, that _EXPIRY_INFINITY > any other valid gint64 timestamps. */
#define _EXPIRY_INFINITY G_MAXINT64
static gint64
get_expiry_time (guint32 timestamp, guint32 lifetime)
{
nm_assert (timestamp > 0);
nm_assert (timestamp <= G_MAXINT32);
if (lifetime == NM_NDISC_INFINITY)
return _EXPIRY_INFINITY;
return ((gint64) timestamp) + ((gint64) lifetime);
}
#define get_expiry(item) \
({ \
typeof (item) _item = (item); \
nm_assert (_item); \
get_expiry_time (_item->timestamp, _item->lifetime); \
})
#define get_expiry_half(item) \
({ \
typeof (item) _item = (item); \
nm_assert (_item); \
(_item->lifetime == NM_NDISC_INFINITY) \
? _EXPIRY_INFINITY \
: get_expiry_time (_item->timestamp, _item->lifetime / 2); \
})
#define get_expiry_preferred(item) \
({ \
typeof (item) _item = (item); \
nm_assert (_item); \
get_expiry_time (_item->timestamp, _item->preferred); \
})
static gboolean
expiry_next (gint32 now_s, gint64 expiry_timestamp, gint32 *nextevent)
{
gint32 e;
if (expiry_timestamp == _EXPIRY_INFINITY)
return TRUE;
e = MIN (expiry_timestamp, ((gint64) (G_MAXINT32 - 1)));
if (now_s >= e)
return FALSE;
if (nextevent) {
if (*nextevent > e)
*nextevent = e;
}
return TRUE;
}
static const char *
_get_exp (char *buf, gsize buf_size, gint64 now_ns, gint64 expiry_time)
{
int l;
if (expiry_time == _EXPIRY_INFINITY)
return "permanent";
l = g_snprintf (buf, buf_size,
"%.4f",
((double) ((expiry_time * NM_UTILS_NSEC_PER_SEC) - now_ns)) / ((double) NM_UTILS_NSEC_PER_SEC));
nm_assert (l < buf_size);
return buf;
}
#define get_exp(buf, now_ns, item) \
_get_exp ((buf), G_N_ELEMENTS (buf), (now_ns), (get_expiry (item)))
/*****************************************************************************/
NMPNetns *
nm_ndisc_netns_get (NMNDisc *self)
{
g_return_val_if_fail (NM_IS_NDISC (self), NULL);
return NM_NDISC_GET_PRIVATE (self)->netns;
}
gboolean
nm_ndisc_netns_push (NMNDisc *self, NMPNetns **netns)
{
NMNDiscPrivate *priv;
g_return_val_if_fail (NM_IS_NDISC (self), FALSE);
priv = NM_NDISC_GET_PRIVATE (self);
if ( priv->netns
&& !nmp_netns_push (priv->netns)) {
NM_SET_OUT (netns, NULL);
return FALSE;
}
NM_SET_OUT (netns, priv->netns);
return TRUE;
}
/*****************************************************************************/
int
nm_ndisc_get_ifindex (NMNDisc *self)
{
g_return_val_if_fail (NM_IS_NDISC (self), 0);
return NM_NDISC_GET_PRIVATE (self)->ifindex;
}
const char *
nm_ndisc_get_ifname (NMNDisc *self)
{
g_return_val_if_fail (NM_IS_NDISC (self), NULL);
return NM_NDISC_GET_PRIVATE (self)->ifname;
}
NMNDiscNodeType
nm_ndisc_get_node_type (NMNDisc *self)
{
g_return_val_if_fail (NM_IS_NDISC (self), NM_NDISC_NODE_TYPE_INVALID);
return NM_NDISC_GET_PRIVATE (self)->node_type;
}
/*****************************************************************************/
static void
_ASSERT_data_gateways (const NMNDiscDataInternal *data)
{
#if NM_MORE_ASSERTS > 10
guint i, j;
const NMNDiscGateway *item_prev = NULL;
if (!data->gateways->len)
return;
for (i = 0; i < data->gateways->len; i++) {
const NMNDiscGateway *item = &g_array_index (data->gateways, NMNDiscGateway, i);
nm_assert (!IN6_IS_ADDR_UNSPECIFIED (&item->address));
nm_assert (item->timestamp > 0 && item->timestamp <= G_MAXINT32);
for (j = 0; j < i; j++) {
const NMNDiscGateway *item2 = &g_array_index (data->gateways, NMNDiscGateway, j);
nm_assert (!IN6_ARE_ADDR_EQUAL (&item->address, &item2->address));
}
nm_assert (item->lifetime > 0);
if (i > 0)
nm_assert (_preference_to_priority (item_prev->preference) >= _preference_to_priority (item->preference));
item_prev = item;
}
#endif
}
/*****************************************************************************/
static const NMNDiscData *
_data_complete (NMNDiscDataInternal *data)
{
_ASSERT_data_gateways (data);
#define _SET(data, field) \
G_STMT_START { \
if ((data->public.field##_n = data->field->len) > 0) \
data->public.field = (gpointer) data->field->data; \
else \
data->public.field = NULL; \
} G_STMT_END
_SET (data, gateways);
_SET (data, addresses);
_SET (data, routes);
_SET (data, dns_servers);
_SET (data, dns_domains);
#undef _SET
return &data->public;
}
void
nm_ndisc_emit_config_change (NMNDisc *self, NMNDiscConfigMap changed)
{
_config_changed_log (self, changed);
g_signal_emit (self, signals[CONFIG_RECEIVED], 0,
_data_complete (&NM_NDISC_GET_PRIVATE (self)->rdata),
(guint) changed);
}
/*****************************************************************************/
gboolean
nm_ndisc_add_gateway (NMNDisc *ndisc, const NMNDiscGateway *new)
{
NMNDiscDataInternal *rdata = &NM_NDISC_GET_PRIVATE(ndisc)->rdata;
guint i;
guint insert_idx = G_MAXUINT;
for (i = 0; i < rdata->gateways->len; ) {
NMNDiscGateway *item = &g_array_index (rdata->gateways, NMNDiscGateway, i);
if (IN6_ARE_ADDR_EQUAL (&item->address, &new->address)) {
if (new->lifetime == 0) {
g_array_remove_index (rdata->gateways, i);
_ASSERT_data_gateways (rdata);
return TRUE;
}
if (item->preference != new->preference) {
g_array_remove_index (rdata->gateways, i);
continue;
}
if (get_expiry (item) == get_expiry (new))
return FALSE;
*item = *new;
_ASSERT_data_gateways (rdata);
return TRUE;
}
/* Put before less preferable gateways. */
if ( _preference_to_priority (item->preference) < _preference_to_priority (new->preference)
&& insert_idx == G_MAXUINT)
insert_idx = i;
i++;
}
if (new->lifetime) {
g_array_insert_val (rdata->gateways,
insert_idx == G_MAXUINT
? rdata->gateways->len
: insert_idx,
*new);
}
_ASSERT_data_gateways (rdata);
return !!new->lifetime;
}
/**
* complete_address:
* @ndisc: the #NMNDisc
* @addr: the #NMNDiscAddress
*
* Adds the host part to the address that has network part set.
* If the address already has a host part, add a different host part
* if possible (this is useful in case DAD failed).
*
* Can fail if a different address can not be generated (DAD failure
* for an EUI-64 address or DAD counter overflow).
*
* Returns: %TRUE if the address could be completed, %FALSE otherwise.
**/
static gboolean
complete_address (NMNDisc *ndisc, NMNDiscAddress *addr)
{
NMNDiscPrivate *priv;
GError *error = NULL;
g_return_val_if_fail (NM_IS_NDISC (ndisc), FALSE);
priv = NM_NDISC_GET_PRIVATE (ndisc);
if (priv->addr_gen_mode == NM_SETTING_IP6_CONFIG_ADDR_GEN_MODE_STABLE_PRIVACY) {
if (!nm_utils_ipv6_addr_set_stable_privacy (priv->stable_type,
&addr->address,
priv->ifname,
priv->network_id,
addr->dad_counter++,
&error)) {
_LOGW ("complete-address: failed to generate an stable-privacy address: %s",
error->message);
g_clear_error (&error);
return FALSE;
}
_LOGD ("complete-address: using an stable-privacy address");
return TRUE;
}
if (!priv->iid.id) {
_LOGW ("complete-address: can't generate an EUI-64 address: no interface identifier");
return FALSE;
}
if (addr->address.s6_addr32[2] == 0x0 && addr->address.s6_addr32[3] == 0x0) {
_LOGD ("complete-address: adding an EUI-64 address");
nm_utils_ipv6_addr_set_interface_identifier (&addr->address, priv->iid);
return TRUE;
}
_LOGW ("complete-address: can't generate a new EUI-64 address");
return FALSE;
}
static gboolean
nm_ndisc_add_address (NMNDisc *ndisc,
const NMNDiscAddress *new,
gint32 now_s,
gboolean from_ra)
{
NMNDiscPrivate *priv = NM_NDISC_GET_PRIVATE (ndisc);
NMNDiscDataInternal *rdata = &priv->rdata;
NMNDiscAddress new2;
NMNDiscAddress *existing = NULL;
guint i;
nm_assert (new);
nm_assert (new->timestamp > 0 && new->timestamp < G_MAXINT32);
nm_assert (!IN6_IS_ADDR_UNSPECIFIED (&new->address));
nm_assert (!IN6_IS_ADDR_LINKLOCAL (&new->address));
nm_assert (new->preferred <= new->lifetime);
nm_assert (!from_ra || now_s > 0);
for (i = 0; i < rdata->addresses->len; i++) {
NMNDiscAddress *item = &g_array_index (rdata->addresses, NMNDiscAddress, i);
if (from_ra) {
/* RFC4862 5.5.3.d, we find an existing address with the same prefix.
* (note that all prefixes at this point have implicitly length /64). */
if (memcmp (&item->address, &new->address, 8) == 0) {
existing = item;
break;
}
} else {
if (IN6_ARE_ADDR_EQUAL (&item->address, &new->address)) {
existing = item;
break;
}
}
}
if (existing) {
/* A Valid Lifetime of 0 eliminates the corresponding address(es). This deviates
* from RFC4862 Section 5.5.3, item e), as recommended in IETF draft draft-gont-6man-slaac-renum.
*/
if (new->lifetime == 0) {
g_array_remove_index (rdata->addresses, i);
return TRUE;
}
if (from_ra) {
gint64 old_expiry_lifetime, old_expiry_preferred;
old_expiry_lifetime = get_expiry (existing);
old_expiry_preferred = get_expiry_preferred (existing);
if (new->lifetime == NM_NDISC_INFINITY)
existing->lifetime = NM_NDISC_INFINITY;
else {
gint64 new_lifetime;
/* Honor small valid lifetimes, as discussed in
* draft-gont-6man-slaac-renum, to allow for more timelier
* reaction to renumbering events. This deviates from
* RFC4862 Section 5.5.3, item e).
*/
new_lifetime = ((gint64) new->timestamp) + ((gint64) new->lifetime) - ((gint64) now_s);
existing->timestamp = now_s;
existing->lifetime = CLAMP (new_lifetime, (gint64) 0, (gint64) (G_MAXUINT32 - 1));
}
if (new->preferred == NM_NDISC_INFINITY) {
nm_assert (existing->lifetime == NM_NDISC_INFINITY);
existing->preferred = new->preferred;
} else {
existing->preferred = NM_CLAMP (((gint64) new->timestamp) + ((gint64) new->preferred) - ((gint64) existing->timestamp),
0, G_MAXUINT32 - 1);
if (existing->lifetime != NM_NDISC_INFINITY)
existing->preferred = MIN (existing->preferred, existing->lifetime);
}
return old_expiry_lifetime != get_expiry (existing)
|| old_expiry_preferred != get_expiry_preferred (existing);
}
if ( get_expiry (existing) == get_expiry (new)
&& get_expiry_preferred (existing) == get_expiry_preferred (new))
return FALSE;
existing->timestamp = new->timestamp;
existing->lifetime = new->lifetime;
existing->preferred = new->preferred;
return TRUE;
}
/* we create at most max_addresses autoconf addresses. This is different from
* what the kernel does, because it considers *all* addresses (including
* static and other temporary addresses).
**/
if ( priv->max_addresses
&& rdata->addresses->len >= priv->max_addresses)
return FALSE;
if (new->lifetime == 0)
return FALSE;
if (from_ra) {
new2 = *new;
new2.dad_counter = 0;
if (!complete_address (ndisc, &new2))
return FALSE;
new = &new2;
}
g_array_append_val (rdata->addresses, *new);
return TRUE;
}
gboolean
nm_ndisc_complete_and_add_address (NMNDisc *ndisc,
const NMNDiscAddress *new,
gint32 now_s)
{
return nm_ndisc_add_address (ndisc, new, now_s, TRUE);
}
gboolean
nm_ndisc_add_route (NMNDisc *ndisc, const NMNDiscRoute *new)
{
NMNDiscPrivate *priv;
NMNDiscDataInternal *rdata;
guint i;
guint insert_idx = G_MAXUINT;
if (new->plen == 0 || new->plen > 128) {
/* Only expect 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 must be ignored by NMNDisc.
*
* Also, upper layers also don't expect that NMNDisc exposes routes
* with a plen or zero or larger then 128.
*/
g_return_val_if_reached (FALSE);
}
priv = NM_NDISC_GET_PRIVATE (ndisc);
rdata = &priv->rdata;
for (i = 0; i < rdata->routes->len; ) {
NMNDiscRoute *item = &g_array_index (rdata->routes, NMNDiscRoute, i);
if ( IN6_ARE_ADDR_EQUAL (&item->network, &new->network)
&& item->plen == new->plen) {
if (new->lifetime == 0) {
g_array_remove_index (rdata->routes, i);
return TRUE;
}
if (item->preference != new->preference) {
g_array_remove_index (rdata->routes, i);
continue;
}
if ( get_expiry (item) == get_expiry (new)
&& IN6_ARE_ADDR_EQUAL (&item->gateway, &new->gateway))
return FALSE;
*item = *new;
return TRUE;
}
/* Put before less preferable routes. */
if ( _preference_to_priority (item->preference) < _preference_to_priority (new->preference)
&& insert_idx == G_MAXUINT)
insert_idx = i;
i++;
}
if (new->lifetime) {
g_array_insert_val (rdata->routes,
insert_idx == G_MAXUINT
? 0u
: insert_idx,
*new);
}
return !!new->lifetime;
}
gboolean
nm_ndisc_add_dns_server (NMNDisc *ndisc, const NMNDiscDNSServer *new)
{
NMNDiscPrivate *priv;
NMNDiscDataInternal *rdata;
guint i;
priv = NM_NDISC_GET_PRIVATE (ndisc);
rdata = &priv->rdata;
for (i = 0; i < rdata->dns_servers->len; i++) {
NMNDiscDNSServer *item = &g_array_index (rdata->dns_servers, NMNDiscDNSServer, i);
if (IN6_ARE_ADDR_EQUAL (&item->address, &new->address)) {
if (new->lifetime == 0) {
g_array_remove_index (rdata->dns_servers, i);
return TRUE;
}
if (get_expiry (item) == get_expiry (new))
return FALSE;
*item = *new;
return TRUE;
}
}
if (new->lifetime)
g_array_append_val (rdata->dns_servers, *new);
return !!new->lifetime;
}
/* Copies new->domain if 'new' is added to the dns_domains list */
gboolean
nm_ndisc_add_dns_domain (NMNDisc *ndisc, const NMNDiscDNSDomain *new)
{
NMNDiscPrivate *priv;
NMNDiscDataInternal *rdata;
NMNDiscDNSDomain *item;
guint i;
priv = NM_NDISC_GET_PRIVATE (ndisc);
rdata = &priv->rdata;
for (i = 0; i < rdata->dns_domains->len; i++) {
item = &g_array_index (rdata->dns_domains, NMNDiscDNSDomain, i);
if (!g_strcmp0 (item->domain, new->domain)) {
if (new->lifetime == 0) {
g_array_remove_index (rdata->dns_domains, i);
return TRUE;
}
if (get_expiry (item) == get_expiry (new))
return FALSE;
item->timestamp = new->timestamp;
item->lifetime = new->lifetime;
return TRUE;
}
}
if (new->lifetime) {
g_array_append_val (rdata->dns_domains, *new);
item = &g_array_index (rdata->dns_domains,
NMNDiscDNSDomain,
rdata->dns_domains->len - 1);
item->domain = g_strdup (new->domain);
}
return !!new->lifetime;
}
/*****************************************************************************/
#define _MAYBE_WARN(...) G_STMT_START { \
gboolean _different_message; \
\
_different_message = g_strcmp0 (priv->last_error, error->message) != 0; \
_NMLOG (_different_message ? LOGL_WARN : LOGL_DEBUG, __VA_ARGS__); \
if (_different_message) { \
nm_clear_g_free (&priv->last_error); \
priv->last_error = g_strdup (error->message); \
} \
} G_STMT_END
static gboolean
send_rs_timeout (NMNDisc *ndisc)
{
nm_auto_pop_netns NMPNetns *netns = NULL;
NMNDiscClass *klass = NM_NDISC_GET_CLASS (ndisc);
NMNDiscPrivate *priv = NM_NDISC_GET_PRIVATE (ndisc);
GError *error = NULL;
priv->send_rs_id = 0;
if (!nm_ndisc_netns_push (ndisc, &netns))
return G_SOURCE_REMOVE;
if (klass->send_rs (ndisc, &error)) {
_LOGD ("router solicitation sent");
priv->solicitations_left--;
nm_clear_g_free (&priv->last_error);
} else {
_MAYBE_WARN ("failure sending router solicitation: %s", error->message);
g_clear_error (&error);
}
priv->last_rs = nm_utils_get_monotonic_timestamp_sec ();
if (priv->solicitations_left > 0) {
_LOGD ("scheduling router solicitation retry in %d seconds.",
(int) priv->router_solicitation_interval);
priv->send_rs_id = g_timeout_add_seconds (priv->router_solicitation_interval,
(GSourceFunc) send_rs_timeout, ndisc);
} else {
_LOGD ("did not receive a router advertisement after %d solicitations.",
(int) priv->router_solicitations);
}
return G_SOURCE_REMOVE;
}
static void
solicit_routers (NMNDisc *ndisc)
{
NMNDiscPrivate *priv = NM_NDISC_GET_PRIVATE (ndisc);
gint32 now, next;
gint64 t;
if (priv->send_rs_id)
return;
now = nm_utils_get_monotonic_timestamp_sec ();
priv->solicitations_left = priv->router_solicitations;
t = (((gint64) priv->last_rs) + priv->router_solicitation_interval) - now;
next = CLAMP (t, 0, G_MAXINT32);
_LOGD ("scheduling explicit router solicitation request in %" G_GINT32_FORMAT " seconds.",
next);
priv->send_rs_id = g_timeout_add_seconds ((guint32) next, (GSourceFunc) send_rs_timeout, ndisc);
}
static gboolean
announce_router (NMNDisc *ndisc)
{
nm_auto_pop_netns NMPNetns *netns = NULL;
NMNDiscClass *klass = NM_NDISC_GET_CLASS (ndisc);
NMNDiscPrivate *priv = NM_NDISC_GET_PRIVATE (ndisc);
GError *error = NULL;
if (!nm_ndisc_netns_push (ndisc, &netns))
return G_SOURCE_REMOVE;
priv->last_ra = nm_utils_get_monotonic_timestamp_sec ();
if (klass->send_ra (ndisc, &error)) {
_LOGD ("router advertisement sent");
nm_clear_g_free (&priv->last_error);
} else {
_MAYBE_WARN ("failure sending router advertisement: %s", error->message);
g_clear_error (&error);
}
if (--priv->announcements_left) {
_LOGD ("will resend an initial router advertisement");
/* Schedule next initial announcement retransmit. */
priv->send_ra_id = g_timeout_add_seconds (g_random_int_range (NM_NDISC_ROUTER_ADVERT_DELAY,
NM_NDISC_ROUTER_ADVERT_INITIAL_INTERVAL),
(GSourceFunc) announce_router, ndisc);
} else {
_LOGD ("will send an unsolicited router advertisement");
/* Schedule next unsolicited announcement. */
priv->announcements_left = 1;
priv->send_ra_id = g_timeout_add_seconds (NM_NDISC_ROUTER_ADVERT_MAX_INTERVAL,
(GSourceFunc) announce_router,
ndisc);
}
return G_SOURCE_REMOVE;
}
static void
announce_router_initial (NMNDisc *ndisc)
{
NMNDiscPrivate *priv = NM_NDISC_GET_PRIVATE (ndisc);
_LOGD ("will send an initial router advertisement");
/* Retry three more times. */
priv->announcements_left = NM_NDISC_ROUTER_ADVERTISEMENTS_DEFAULT;
/* Unschedule an unsolicited resend if we are allowed to send now. */
if (G_LIKELY (nm_utils_get_monotonic_timestamp_sec () - priv->last_ra > NM_NDISC_ROUTER_ADVERT_DELAY))
nm_clear_g_source (&priv->send_ra_id);
/* Schedule the initial send rather early. Clamp the delay by minimal
* delay and not the initial advert internal so that we start fast. */
if (G_LIKELY (!priv->send_ra_id)) {
priv->send_ra_id = g_timeout_add_seconds (g_random_int_range (0, NM_NDISC_ROUTER_ADVERT_DELAY),
(GSourceFunc) announce_router, ndisc);
}
}
static void
announce_router_solicited (NMNDisc *ndisc)
{
NMNDiscPrivate *priv = NM_NDISC_GET_PRIVATE (ndisc);
_LOGD ("will send an solicited router advertisement");
/* Unschedule an unsolicited resend if we are allowed to send now. */
if (nm_utils_get_monotonic_timestamp_sec () - priv->last_ra > NM_NDISC_ROUTER_ADVERT_DELAY)
nm_clear_g_source (&priv->send_ra_id);
if (!priv->send_ra_id) {
priv->send_ra_id = g_timeout_add (g_random_int_range (0, NM_NDISC_ROUTER_ADVERT_DELAY_MS),
(GSourceFunc) announce_router, ndisc);
}
}
/*****************************************************************************/
void
nm_ndisc_set_config (NMNDisc *ndisc,
const GArray *addresses,
const GArray *dns_servers,
const GArray *dns_domains)
{
gboolean changed = FALSE;
guint i;
for (i = 0; i < addresses->len; i++) {
if (nm_ndisc_add_address (ndisc, &g_array_index (addresses, NMNDiscAddress, i), 0, FALSE))
changed = TRUE;
}
for (i = 0; i < dns_servers->len; i++) {
if (nm_ndisc_add_dns_server (ndisc, &g_array_index (dns_servers, NMNDiscDNSServer, i)))
changed = TRUE;
}
for (i = 0; i < dns_domains->len; i++) {
if (nm_ndisc_add_dns_domain (ndisc, &g_array_index (dns_domains, NMNDiscDNSDomain, i)))
changed = TRUE;
}
if (changed)
announce_router_initial (ndisc);
}
/**
* nm_ndisc_set_iid:
* @ndisc: the #NMNDisc
* @iid: the new interface ID
*
* Sets the "Modified EUI-64" interface ID to be used when generating
* IPv6 addresses using received prefixes. Identifiers are either generated
* from the hardware addresses or manually set by the operator with
* "ip token" command.
*
* Upon token change (or initial setting) all addresses generated using
* the old identifier are removed. The caller should ensure the addresses
* will be reset by soliciting router advertisements.
*
* In case the stable privacy addressing is used %FALSE is returned and
* addresses are left untouched.
*
* Returns: %TRUE if addresses need to be regenerated, %FALSE otherwise.
**/
gboolean
nm_ndisc_set_iid (NMNDisc *ndisc, const NMUtilsIPv6IfaceId iid)
{
NMNDiscPrivate *priv;
NMNDiscDataInternal *rdata;
g_return_val_if_fail (NM_IS_NDISC (ndisc), FALSE);
priv = NM_NDISC_GET_PRIVATE (ndisc);
rdata = &priv->rdata;
if (priv->iid.id != iid.id) {
priv->iid = iid;
if (priv->addr_gen_mode == NM_SETTING_IP6_CONFIG_ADDR_GEN_MODE_STABLE_PRIVACY)
return FALSE;
if (rdata->addresses->len) {
_LOGD ("IPv6 interface identifier changed, flushing addresses");
g_array_remove_range (rdata->addresses, 0, rdata->addresses->len);
nm_ndisc_emit_config_change (ndisc, NM_NDISC_CONFIG_ADDRESSES);
solicit_routers (ndisc);
}
return TRUE;
}
return FALSE;
}
static gboolean
ndisc_ra_timeout_cb (gpointer user_data)
{
NMNDisc *ndisc = NM_NDISC (user_data);
NM_NDISC_GET_PRIVATE (ndisc)->ra_timeout_id = 0;
g_signal_emit (ndisc, signals[RA_TIMEOUT_SIGNAL], 0);
return G_SOURCE_REMOVE;
}
void
nm_ndisc_start (NMNDisc *ndisc)
{
nm_auto_pop_netns NMPNetns *netns = NULL;
NMNDiscPrivate *priv;
g_return_if_fail (NM_IS_NDISC (ndisc));
priv = NM_NDISC_GET_PRIVATE (ndisc);
nm_assert (NM_NDISC_GET_CLASS (ndisc)->start);
nm_assert (!priv->ra_timeout_id);
_LOGD ("starting neighbor discovery for ifindex %d%s",
priv->ifindex,
priv->node_type == NM_NDISC_NODE_TYPE_HOST
? " (solicit)"
: " (announce)");
if (!nm_ndisc_netns_push (ndisc, &netns))
return;
NM_NDISC_GET_CLASS (ndisc)->start (ndisc);
if (priv->node_type == NM_NDISC_NODE_TYPE_HOST) {
gint32 ra_timeout = priv->ra_timeout;
G_STATIC_ASSERT_EXPR (NM_RA_TIMEOUT_DEFAULT == 0);
G_STATIC_ASSERT_EXPR (NM_RA_TIMEOUT_INFINITY == G_MAXINT32);
if (ra_timeout != NM_RA_TIMEOUT_INFINITY) {
if (ra_timeout == NM_RA_TIMEOUT_DEFAULT) {
ra_timeout = NM_MAX ((((gint64) priv->router_solicitations) * priv->router_solicitation_interval) + 1,
30);
}
nm_assert (ra_timeout > 0 && ra_timeout < NM_RA_TIMEOUT_INFINITY);
_LOGD ("scheduling RA timeout in %d seconds", ra_timeout);
priv->ra_timeout_id = g_timeout_add_seconds (ra_timeout, ndisc_ra_timeout_cb, ndisc);
}
solicit_routers (ndisc);
return;
}
nm_assert (priv->node_type == NM_NDISC_NODE_TYPE_ROUTER);
announce_router_initial (ndisc);
}
NMNDiscConfigMap
nm_ndisc_dad_failed (NMNDisc *ndisc, const struct in6_addr *address, gboolean emit_changed_signal)
{
NMNDiscDataInternal *rdata;
guint i;
gboolean changed = FALSE;
rdata = &NM_NDISC_GET_PRIVATE (ndisc)->rdata;
for (i = 0; i < rdata->addresses->len; ) {
NMNDiscAddress *item = &g_array_index (rdata->addresses, NMNDiscAddress, i);
if (IN6_ARE_ADDR_EQUAL (&item->address, address)) {
char sbuf[NM_UTILS_INET_ADDRSTRLEN];
_LOGD ("DAD failed for discovered address %s", _nm_utils_inet6_ntop (address, sbuf));
changed = TRUE;
if (!complete_address (ndisc, item)) {
g_array_remove_index (rdata->addresses, i);
continue;
}
}
i++;
}
if (emit_changed_signal && changed)
nm_ndisc_emit_config_change (ndisc, NM_NDISC_CONFIG_ADDRESSES);
return changed ? NM_NDISC_CONFIG_ADDRESSES : NM_NDISC_CONFIG_NONE;
}
#define CONFIG_MAP_MAX_STR 7
static void
config_map_to_string (NMNDiscConfigMap map, char *p)
{
if (map & NM_NDISC_CONFIG_DHCP_LEVEL)
*p++ = 'd';
if (map & NM_NDISC_CONFIG_GATEWAYS)
*p++ = 'G';
if (map & NM_NDISC_CONFIG_ADDRESSES)
*p++ = 'A';
if (map & NM_NDISC_CONFIG_ROUTES)
*p++ = 'R';
if (map & NM_NDISC_CONFIG_DNS_SERVERS)
*p++ = 'S';
if (map & NM_NDISC_CONFIG_DNS_DOMAINS)
*p++ = 'D';
*p = '\0';
}
static const char *
dhcp_level_to_string (NMNDiscDHCPLevel dhcp_level)
{
switch (dhcp_level) {
case NM_NDISC_DHCP_LEVEL_NONE:
return "none";
case NM_NDISC_DHCP_LEVEL_OTHERCONF:
return "otherconf";
case NM_NDISC_DHCP_LEVEL_MANAGED:
return "managed";
default:
return "INVALID";
}
}
static void
_config_changed_log (NMNDisc *ndisc, NMNDiscConfigMap changed)
{
NMNDiscPrivate *priv;
NMNDiscDataInternal *rdata;
guint i;
char changedstr[CONFIG_MAP_MAX_STR];
char addrstr[INET6_ADDRSTRLEN];
char str_pref[35];
char str_exp[100];
gint64 now_ns;
if (!_LOGD_ENABLED ())
return;
now_ns = nm_utils_get_monotonic_timestamp_nsec ();
priv = NM_NDISC_GET_PRIVATE (ndisc);
rdata = &priv->rdata;
config_map_to_string (changed, changedstr);
_LOGD ("neighbor discovery configuration changed [%s]:", changedstr);
_LOGD (" dhcp-level %s", dhcp_level_to_string (priv->rdata.public.dhcp_level));
if (rdata->public.hop_limit)
_LOGD (" hop limit : %d", rdata->public.hop_limit);
if (rdata->public.reachable_time_ms)
_LOGD (" reachable time : %u", (guint) rdata->public.reachable_time_ms);
if (rdata->public.retrans_timer_ms)
_LOGD (" retrans timer : %u", (guint) rdata->public.retrans_timer_ms);
for (i = 0; i < rdata->gateways->len; i++) {
NMNDiscGateway *gateway = &g_array_index (rdata->gateways, NMNDiscGateway, i);
inet_ntop (AF_INET6, &gateway->address, addrstr, sizeof (addrstr));
_LOGD (" gateway %s pref %s exp %s", addrstr,
nm_icmpv6_router_pref_to_string (gateway->preference, str_pref, sizeof (str_pref)),
get_exp (str_exp, now_ns, gateway));
}
for (i = 0; i < rdata->addresses->len; i++) {
const NMNDiscAddress *address = &g_array_index (rdata->addresses, NMNDiscAddress, i);
inet_ntop (AF_INET6, &address->address, addrstr, sizeof (addrstr));
_LOGD (" address %s exp %s", addrstr,
get_exp (str_exp, now_ns, address));
}
for (i = 0; i < rdata->routes->len; i++) {
NMNDiscRoute *route = &g_array_index (rdata->routes, NMNDiscRoute, i);
char sbuf[NM_UTILS_INET_ADDRSTRLEN];
inet_ntop (AF_INET6, &route->network, addrstr, sizeof (addrstr));
_LOGD (" route %s/%u via %s pref %s exp %s", addrstr, (guint) route->plen,
_nm_utils_inet6_ntop (&route->gateway, sbuf),
nm_icmpv6_router_pref_to_string (route->preference, str_pref, sizeof (str_pref)),
get_exp (str_exp, now_ns, route));
}
for (i = 0; i < rdata->dns_servers->len; i++) {
NMNDiscDNSServer *dns_server = &g_array_index (rdata->dns_servers, NMNDiscDNSServer, i);
inet_ntop (AF_INET6, &dns_server->address, addrstr, sizeof (addrstr));
_LOGD (" dns_server %s exp %s", addrstr,
get_exp (str_exp, now_ns, dns_server));
}
for (i = 0; i < rdata->dns_domains->len; i++) {
NMNDiscDNSDomain *dns_domain = &g_array_index (rdata->dns_domains, NMNDiscDNSDomain, i);
_LOGD (" dns_domain %s exp %s", dns_domain->domain,
get_exp (str_exp, now_ns, dns_domain));
}
}
static void
clean_gateways (NMNDisc *ndisc, gint32 now, NMNDiscConfigMap *changed, gint32 *nextevent)
{
NMNDiscDataInternal *rdata;
guint i;
rdata = &NM_NDISC_GET_PRIVATE (ndisc)->rdata;
for (i = 0; i < rdata->gateways->len; ) {
NMNDiscGateway *item = &g_array_index (rdata->gateways, NMNDiscGateway, i);
if (!expiry_next (now, get_expiry (item), nextevent)) {
g_array_remove_index (rdata->gateways, i);
*changed |= NM_NDISC_CONFIG_GATEWAYS;
continue;
}
i++;
}
_ASSERT_data_gateways (rdata);
}
static void
clean_addresses (NMNDisc *ndisc, gint32 now, NMNDiscConfigMap *changed, gint32 *nextevent)
{
NMNDiscDataInternal *rdata;
guint i;
rdata = &NM_NDISC_GET_PRIVATE (ndisc)->rdata;
for (i = 0; i < rdata->addresses->len; ) {
const NMNDiscAddress *item = &g_array_index (rdata->addresses, NMNDiscAddress, i);
if (!expiry_next (now, get_expiry (item), nextevent)) {
g_array_remove_index (rdata->addresses, i);
*changed |= NM_NDISC_CONFIG_ADDRESSES;
continue;
}
i++;
}
}
static void
clean_routes (NMNDisc *ndisc, gint32 now, NMNDiscConfigMap *changed, gint32 *nextevent)
{
NMNDiscDataInternal *rdata;
guint i;
rdata = &NM_NDISC_GET_PRIVATE (ndisc)->rdata;
for (i = 0; i < rdata->routes->len; ) {
NMNDiscRoute *item = &g_array_index (rdata->routes, NMNDiscRoute, i);
if (!expiry_next (now, get_expiry (item), nextevent)) {
g_array_remove_index (rdata->routes, i);
*changed |= NM_NDISC_CONFIG_ROUTES;
continue;
}
i++;
}
}
static void
clean_dns_servers (NMNDisc *ndisc, gint32 now, NMNDiscConfigMap *changed, gint32 *nextevent)
{
NMNDiscDataInternal *rdata;
guint i;
rdata = &NM_NDISC_GET_PRIVATE (ndisc)->rdata;
for (i = 0; i < rdata->dns_servers->len; ) {
NMNDiscDNSServer *item = &g_array_index (rdata->dns_servers, NMNDiscDNSServer, i);
gint64 refresh;
refresh = get_expiry_half (item);
if (refresh != _EXPIRY_INFINITY) {
if (!expiry_next (now, get_expiry (item), NULL)) {
g_array_remove_index (rdata->dns_servers, i);
*changed |= NM_NDISC_CONFIG_DNS_SERVERS;
continue;
}
if (now >= refresh)
solicit_routers (ndisc);
else if (*nextevent > refresh)
*nextevent = refresh;
}
i++;
}
}
static void
clean_dns_domains (NMNDisc *ndisc, gint32 now, NMNDiscConfigMap *changed, gint32 *nextevent)
{
NMNDiscDataInternal *rdata;
guint i;
rdata = &NM_NDISC_GET_PRIVATE (ndisc)->rdata;
for (i = 0; i < rdata->dns_domains->len; ) {
NMNDiscDNSDomain *item = &g_array_index (rdata->dns_domains, NMNDiscDNSDomain, i);
gint64 refresh;
refresh = get_expiry_half (item);
if (refresh != _EXPIRY_INFINITY) {
if (!expiry_next (now, get_expiry (item), NULL)) {
g_array_remove_index (rdata->dns_domains, i);
*changed |= NM_NDISC_CONFIG_DNS_DOMAINS;
continue;
}
if (now >= refresh)
solicit_routers (ndisc);
else if (*nextevent > refresh)
*nextevent = refresh;
}
i++;
}
}
static gboolean timeout_cb (gpointer user_data);
static void
check_timestamps (NMNDisc *ndisc, gint32 now, NMNDiscConfigMap changed)
{
NMNDiscPrivate *priv = NM_NDISC_GET_PRIVATE (ndisc);
/* Use a magic date in the distant future (~68 years) */
gint32 nextevent = G_MAXINT32;
nm_clear_g_source (&priv->timeout_id);
clean_gateways (ndisc, now, &changed, &nextevent);
clean_addresses (ndisc, now, &changed, &nextevent);
clean_routes (ndisc, now, &changed, &nextevent);
clean_dns_servers (ndisc, now, &changed, &nextevent);
clean_dns_domains (ndisc, now, &changed, &nextevent);
if (nextevent != G_MAXINT32) {
if (nextevent <= now)
g_return_if_reached ();
_LOGD ("scheduling next now/lifetime check: %d seconds",
(int) (nextevent - now));
priv->timeout_id = g_timeout_add_seconds (nextevent - now, timeout_cb, ndisc);
}
if (changed)
nm_ndisc_emit_config_change (ndisc, changed);
}
static gboolean
timeout_cb (gpointer user_data)
{
NMNDisc *self = user_data;
NM_NDISC_GET_PRIVATE (self)->timeout_id = 0;
check_timestamps (self, nm_utils_get_monotonic_timestamp_sec (), 0);
return G_SOURCE_REMOVE;
}
void
nm_ndisc_ra_received (NMNDisc *ndisc, gint32 now, NMNDiscConfigMap changed)
{
NMNDiscPrivate *priv = NM_NDISC_GET_PRIVATE (ndisc);
nm_clear_g_source (&priv->ra_timeout_id);
nm_clear_g_source (&priv->send_rs_id);
nm_clear_g_free (&priv->last_error);
check_timestamps (ndisc, now, changed);
}
void
nm_ndisc_rs_received (NMNDisc *ndisc)
{
NMNDiscPrivate *priv = NM_NDISC_GET_PRIVATE (ndisc);
nm_clear_g_free (&priv->last_error);
announce_router_solicited (ndisc);
}
/*****************************************************************************/
static void
dns_domain_free (gpointer data)
{
g_free (((NMNDiscDNSDomain *)(data))->domain);
}
static void
set_property (GObject *object, guint prop_id,
const GValue *value, GParamSpec *pspec)
{
NMNDisc *self = NM_NDISC (object);
NMNDiscPrivate *priv = NM_NDISC_GET_PRIVATE (self);
switch (prop_id) {
case PROP_PLATFORM:
/* construct-only */
priv->platform = g_value_get_object (value) ?: NM_PLATFORM_GET;
if (!priv->platform)
g_return_if_reached ();
g_object_ref (priv->platform);
priv->netns = nm_platform_netns_get (priv->platform);
if (priv->netns)
g_object_ref (priv->netns);
g_return_if_fail (!priv->netns || priv->netns == nmp_netns_get_current ());
break;
case PROP_IFINDEX:
/* construct-only */
priv->ifindex = g_value_get_int (value);
g_return_if_fail (priv->ifindex > 0);
break;
case PROP_IFNAME:
/* construct-only */
priv->ifname = g_value_dup_string (value);
g_return_if_fail (priv->ifname && priv->ifname[0]);
break;
case PROP_STABLE_TYPE:
/* construct-only */
priv->stable_type = g_value_get_int (value);
break;
case PROP_NETWORK_ID:
/* construct-only */
priv->network_id = g_value_dup_string (value);
g_return_if_fail (priv->network_id);
break;
case PROP_ADDR_GEN_MODE:
/* construct-only */
priv->addr_gen_mode = g_value_get_int (value);
break;
case PROP_MAX_ADDRESSES:
/* construct-only */
priv->max_addresses = g_value_get_int (value);
break;
case PROP_RA_TIMEOUT:
/* construct-only */
priv->ra_timeout = g_value_get_int (value);
break;
case PROP_ROUTER_SOLICITATIONS:
/* construct-only */
priv->router_solicitations = g_value_get_int (value);
break;
case PROP_ROUTER_SOLICITATION_INTERVAL:
/* construct-only */
priv->router_solicitation_interval = g_value_get_int (value);
break;
case PROP_NODE_TYPE:
/* construct-only */
priv->node_type = g_value_get_int (value);
nm_assert (NM_IN_SET (priv->node_type, NM_NDISC_NODE_TYPE_HOST,
NM_NDISC_NODE_TYPE_ROUTER));
break;
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
break;
}
}
static void
nm_ndisc_init (NMNDisc *ndisc)
{
NMNDiscPrivate *priv;
NMNDiscDataInternal *rdata;
priv = G_TYPE_INSTANCE_GET_PRIVATE (ndisc, NM_TYPE_NDISC, NMNDiscPrivate);
ndisc->_priv = priv;
rdata = &priv->rdata;
rdata->gateways = g_array_new (FALSE, FALSE, sizeof (NMNDiscGateway));
rdata->addresses = g_array_new (FALSE, FALSE, sizeof (NMNDiscAddress));
rdata->routes = g_array_new (FALSE, FALSE, sizeof (NMNDiscRoute));
rdata->dns_servers = g_array_new (FALSE, FALSE, sizeof (NMNDiscDNSServer));
rdata->dns_domains = g_array_new (FALSE, FALSE, sizeof (NMNDiscDNSDomain));
g_array_set_clear_func (rdata->dns_domains, dns_domain_free);
priv->rdata.public.hop_limit = 64;
/* Start at very low number so that last_rs - router_solicitation_interval
* is much lower than nm_utils_get_monotonic_timestamp_sec() at startup.
*/
priv->last_rs = G_MININT32;
}
static void
dispose (GObject *object)
{
NMNDisc *ndisc = NM_NDISC (object);
NMNDiscPrivate *priv = NM_NDISC_GET_PRIVATE (ndisc);
nm_clear_g_source (&priv->ra_timeout_id);
nm_clear_g_source (&priv->send_rs_id);
nm_clear_g_source (&priv->send_ra_id);
nm_clear_g_free (&priv->last_error);
nm_clear_g_source (&priv->timeout_id);
G_OBJECT_CLASS (nm_ndisc_parent_class)->dispose (object);
}
static void
finalize (GObject *object)
{
NMNDisc *ndisc = NM_NDISC (object);
NMNDiscPrivate *priv = NM_NDISC_GET_PRIVATE (ndisc);
NMNDiscDataInternal *rdata = &priv->rdata;
g_free (priv->ifname);
g_free (priv->network_id);
g_array_unref (rdata->gateways);
g_array_unref (rdata->addresses);
g_array_unref (rdata->routes);
g_array_unref (rdata->dns_servers);
g_array_unref (rdata->dns_domains);
g_clear_object (&priv->netns);
g_clear_object (&priv->platform);
G_OBJECT_CLASS (nm_ndisc_parent_class)->finalize (object);
}
static void
nm_ndisc_class_init (NMNDiscClass *klass)
{
GObjectClass *object_class = G_OBJECT_CLASS (klass);
g_type_class_add_private (klass, sizeof (NMNDiscPrivate));
object_class->set_property = set_property;
object_class->dispose = dispose;
object_class->finalize = finalize;
obj_properties[PROP_PLATFORM] =
g_param_spec_object (NM_NDISC_PLATFORM, "", "",
NM_TYPE_PLATFORM,
G_PARAM_WRITABLE |
G_PARAM_CONSTRUCT_ONLY |
G_PARAM_STATIC_STRINGS);
obj_properties[PROP_IFINDEX] =
g_param_spec_int (NM_NDISC_IFINDEX, "", "",
0, G_MAXINT, 0,
G_PARAM_WRITABLE |
G_PARAM_CONSTRUCT_ONLY |
G_PARAM_STATIC_STRINGS);
obj_properties[PROP_IFNAME] =
g_param_spec_string (NM_NDISC_IFNAME, "", "",
NULL,
G_PARAM_WRITABLE |
G_PARAM_CONSTRUCT_ONLY |
G_PARAM_STATIC_STRINGS);
obj_properties[PROP_STABLE_TYPE] =
g_param_spec_int (NM_NDISC_STABLE_TYPE, "", "",
NM_UTILS_STABLE_TYPE_UUID, NM_UTILS_STABLE_TYPE_RANDOM, NM_UTILS_STABLE_TYPE_UUID,
G_PARAM_WRITABLE |
G_PARAM_CONSTRUCT_ONLY |
G_PARAM_STATIC_STRINGS);
obj_properties[PROP_NETWORK_ID] =
g_param_spec_string (NM_NDISC_NETWORK_ID, "", "",
NULL,
G_PARAM_WRITABLE |
G_PARAM_CONSTRUCT_ONLY |
G_PARAM_STATIC_STRINGS);
obj_properties[PROP_ADDR_GEN_MODE] =
g_param_spec_int (NM_NDISC_ADDR_GEN_MODE, "", "",
NM_SETTING_IP6_CONFIG_ADDR_GEN_MODE_EUI64, NM_SETTING_IP6_CONFIG_ADDR_GEN_MODE_STABLE_PRIVACY, NM_SETTING_IP6_CONFIG_ADDR_GEN_MODE_EUI64,
G_PARAM_WRITABLE |
G_PARAM_CONSTRUCT_ONLY |
G_PARAM_STATIC_STRINGS);
obj_properties[PROP_MAX_ADDRESSES] =
g_param_spec_int (NM_NDISC_MAX_ADDRESSES, "", "",
0, G_MAXINT32, NM_NDISC_MAX_ADDRESSES_DEFAULT,
G_PARAM_WRITABLE |
G_PARAM_CONSTRUCT_ONLY |
G_PARAM_STATIC_STRINGS);
G_STATIC_ASSERT_EXPR (G_MAXINT32 == NM_RA_TIMEOUT_INFINITY);
obj_properties[PROP_RA_TIMEOUT] =
g_param_spec_int (NM_NDISC_RA_TIMEOUT, "", "",
0, G_MAXINT32, 0,
G_PARAM_WRITABLE |
G_PARAM_CONSTRUCT_ONLY |
G_PARAM_STATIC_STRINGS);
obj_properties[PROP_ROUTER_SOLICITATIONS] =
g_param_spec_int (NM_NDISC_ROUTER_SOLICITATIONS, "", "",
1, G_MAXINT32, NM_NDISC_ROUTER_SOLICITATIONS_DEFAULT,
G_PARAM_WRITABLE |
G_PARAM_CONSTRUCT_ONLY |
G_PARAM_STATIC_STRINGS);
obj_properties[PROP_ROUTER_SOLICITATION_INTERVAL] =
g_param_spec_int (NM_NDISC_ROUTER_SOLICITATION_INTERVAL, "", "",
1, G_MAXINT32, NM_NDISC_ROUTER_SOLICITATION_INTERVAL_DEFAULT,
G_PARAM_WRITABLE |
G_PARAM_CONSTRUCT_ONLY |
G_PARAM_STATIC_STRINGS);
obj_properties[PROP_NODE_TYPE] =
g_param_spec_int (NM_NDISC_NODE_TYPE, "", "",
NM_NDISC_NODE_TYPE_INVALID, NM_NDISC_NODE_TYPE_ROUTER, NM_NDISC_NODE_TYPE_INVALID,
G_PARAM_WRITABLE |
G_PARAM_CONSTRUCT_ONLY |
G_PARAM_STATIC_STRINGS);
g_object_class_install_properties (object_class, _PROPERTY_ENUMS_LAST, obj_properties);
signals[CONFIG_RECEIVED] =
g_signal_new (NM_NDISC_CONFIG_RECEIVED,
G_OBJECT_CLASS_TYPE (klass),
G_SIGNAL_RUN_FIRST,
0,
NULL, NULL, NULL,
G_TYPE_NONE, 2, G_TYPE_POINTER, G_TYPE_UINT);
signals[RA_TIMEOUT_SIGNAL] =
g_signal_new (NM_NDISC_RA_TIMEOUT_SIGNAL,
G_OBJECT_CLASS_TYPE (klass),
G_SIGNAL_RUN_FIRST,
0,
NULL, NULL, NULL,
G_TYPE_NONE, 0);
}
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