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l3cfg: add nm_l3cfg_has_commited_ipv6_pending_dad() function

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This will be used for tracking IPv6 addresses that still have DAD pending.
Currently, NMDevice does it differently (see "dad6").
This commit is contained in:
Thomas Haller 2020-09-16 13:18:54 +02:00
parent dbfb7fe2d7
commit 000ad171e3
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GPG key ID: 29C2366E4DFC5728
2 changed files with 54 additions and 0 deletions
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50
src/nm-l3cfg.c
View file

@ -5,6 +5,7 @@
#include "nm-l3cfg.h"
#include <net/if.h>
#include <linux/if_addr.h>
#include "platform/nm-platform.h"
#include "platform/nmp-object.h"
@ -3080,6 +3081,55 @@ nm_l3cfg_get_best_default_route (NML3Cfg *self,
/*****************************************************************************/
gboolean
nm_l3cfg_has_commited_ip6_addresses_pending_dad (NML3Cfg *self)
{
const NML3ConfigData *l3cd;
const NMPObject *plat_obj;
NMPLookup plat_lookup;
NMDedupMultiIter iter;
nm_assert (NM_IS_L3CFG (self));
l3cd = nm_l3cfg_get_combined_l3cd (self, TRUE);
if (!l3cd)
return FALSE;
/* we iterate over all addresses in platform, and check whether the tentative
* addresses are tracked by our l3cd. Not the other way around, because we assume
* that there are few addresses in platform that are still tentative, so
* we only need to lookup few platform addresses in l3cd.
*
* Of course, all lookups are O(1) anyway, so in any case the operation is
* O(n) (once "n" being the addresses in platform, and once in l3cd). */
nmp_lookup_init_object (&plat_lookup, NMP_OBJECT_TYPE_IP6_ADDRESS, self->priv.ifindex);
nm_platform_iter_obj_for_each (&iter,
self->priv.platform,
&plat_lookup,
&plat_obj) {
const NMPlatformIP6Address *plat_addr = NMP_OBJECT_CAST_IP6_ADDRESS (plat_obj);
const NMDedupMultiEntry *l3cd_entry;
if ( !NM_FLAGS_HAS (plat_addr->n_ifa_flags, IFA_F_TENTATIVE)
|| NM_FLAGS_ANY (plat_addr->n_ifa_flags, IFA_F_DADFAILED
| IFA_F_OPTIMISTIC))
continue;
l3cd_entry = nm_l3_config_data_lookup_obj (l3cd, plat_obj);
nm_assert (NMP_OBJECT_CAST_IP6_ADDRESS (nm_dedup_multi_entry_get_obj (l3cd_entry)) == nm_l3_config_data_lookup_address_6 (l3cd, &plat_addr->address));
if (l3cd_entry)
return TRUE;
}
return FALSE;
}
/*****************************************************************************/
static void
set_property (GObject *object,
guint prop_id,

4
src/nm-l3cfg.h
View file

@ -229,4 +229,8 @@ const NMPObject *nm_l3cfg_get_best_default_route (NML3Cfg *self,
/*****************************************************************************/
gboolean nm_l3cfg_has_commited_ip6_addresses_pending_dad (NML3Cfg *self);
/*****************************************************************************/
#endif /* __NM_L3CFG_H__ */