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platform: add support for 6LoWPAN links

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The 6LoWPAN devices tunnel IPv6 over IEEE 802.14.5 WPAN links.
They are software devices without any interesting properties but the
parent linke.
This commit is contained in:
Lubomir Rintel 2018-05-22 11:50:05 +02:00
parent 49844ea55f
commit 47c51b3f26
2 changed files with 77 additions and 0 deletions
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65
src/platform/nm-platform.c
View file

@ -2088,6 +2088,70 @@ nm_platform_link_tun_add (NMPlatform *self,
return NM_PLATFORM_ERROR_SUCCESS;
}
/**
* nm_platform_6lowpan_add:
* @self: platform instance
* @parent: parent link
* @name: name of the new interface
* @out_link: on success, the link object
*
* Create a 6LoWPAN interface.
*/
NMPlatformError
nm_platform_link_6lowpan_add (NMPlatform *self,
const char *name,
int parent,
const NMPlatformLink **out_link)
{
NMPlatformError plerr;
_CHECK_SELF (self, klass, NM_PLATFORM_ERROR_BUG);
g_return_val_if_fail (name, NM_PLATFORM_ERROR_BUG);
plerr = _link_add_check_existing (self, name, NM_LINK_TYPE_6LOWPAN, out_link);
if (plerr != NM_PLATFORM_ERROR_SUCCESS)
return plerr;
_LOGD ("adding 6lowpan '%s' parent %u", name, parent);
if (!klass->link_6lowpan_add (self, name, parent, out_link))
return NM_PLATFORM_ERROR_UNSPECIFIED;
return NM_PLATFORM_ERROR_SUCCESS;
}
gboolean
nm_platform_link_6lowpan_get_properties (NMPlatform *self, int ifindex, int *out_parent)
{
const NMPlatformLink *plink;
_CHECK_SELF (self, klass, FALSE);
plink = nm_platform_link_get (self, ifindex);
if (!plink)
return FALSE;
if (plink->type != NM_LINK_TYPE_6LOWPAN)
return FALSE;
if (plink->parent != 0) {
NM_SET_OUT (out_parent, plink->parent);
return TRUE;
}
/* As of 4.16 kernel does not expose the peer_ifindex as IFA_LINK.
* Find the WPAN device with the same MAC address. */
if (out_parent) {
const NMPlatformLink *parent_plink;
parent_plink = nm_platform_link_get_by_address (self, NM_LINK_TYPE_WPAN,
plink->addr.data,
plink->addr.len);
NM_SET_OUT (out_parent, parent_plink ? parent_plink->ifindex : -1);
}
return TRUE;
}
/*****************************************************************************/
static gboolean
@ -2539,6 +2603,7 @@ nm_platform_link_ipip_add (NMPlatform *self,
* nm_platform_macsec_add:
* @self: platform instance
* @name: name of the new interface
* @parent: parent link
* @props: interface properties
* @out_link: on success, the link object
*

12
src/platform/nm-platform.h
View file

@ -854,6 +854,11 @@ typedef struct {
const NMPlatformLink **out_link,
int *out_fd);
gboolean (*link_6lowpan_add) (NMPlatform *platform,
const char *name,
int parent,
const NMPlatformLink **out_link);
gboolean (*infiniband_partition_add) (NMPlatform *, int parent, int p_key, const NMPlatformLink **out_link);
gboolean (*infiniband_partition_delete) (NMPlatform *, int parent, int p_key);
@ -1301,6 +1306,13 @@ NMPlatformError nm_platform_link_tun_add (NMPlatform *self,
const NMPlatformLnkTun *props,
const NMPlatformLink **out_link,
int *out_fd);
NMPlatformError nm_platform_link_6lowpan_add (NMPlatform *self,
const char *name,
int parent,
const NMPlatformLink **out_link);
gboolean nm_platform_link_6lowpan_get_properties (NMPlatform *self,
int ifindex,
int *out_parent);
const NMPlatformIP6Address *nm_platform_ip6_address_get (NMPlatform *self, int ifindex, struct in6_addr address);