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netdev: Implement new_wiphy hint

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When a new wiphy is added, the kernel usually adds a default STA
interface as well.  This interface is currently not signaled over
nl80211 in any way.

This implements a selective dump of the wiphy interfaces in order to
obtain the newly added netdev.  Selective dump is currently not
supported by the kernel, so all netdevs will be returned.  A patch on
linux-wireless is pending that implements the selective dump
functionality.
This commit is contained in:
Denis Kenzior 2016-07-01 14:39:25 -05:00
parent 943acddb49
commit 005213a3d4
2 changed files with 13 additions and 0 deletions
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12
src/netdev.c
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@ -1358,6 +1358,18 @@ static void netdev_link_notify(uint16_t type, const void *data, uint32_t len,
}
}
void netdev_new_wiphy_hint(uint32_t wiphy_id)
{
struct l_genl_msg *msg;
msg = l_genl_msg_new_sized(NL80211_CMD_GET_INTERFACE, 8);
l_genl_msg_append_attr(msg, NL80211_ATTR_WIPHY, 4, &wiphy_id);
if (!l_genl_family_dump(nl80211, msg, netdev_get_interface_callback,
NULL, NULL))
l_error("Getting wiphy %d interface info failed", wiphy_id);
}
static bool netdev_watch_match(const void *a, const void *b)
{
const struct netdev_watch *item = a;

1
src/netdev.h
View File

@ -69,6 +69,7 @@ int netdev_disconnect(struct netdev *netdev,
netdev_disconnect_cb_t cb, void *user_data);
struct netdev *netdev_find(int ifindex);
void netdev_new_wiphy_hint(uint32_t wiphy_id);
uint32_t netdev_watch_add(struct netdev *netdev, netdev_watch_func_t func,
void *user_data);