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netdev: Don't track NEWLINK & DELLINK

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The plan is to use the much more reliable NEW_WIPHY, DEL_WIPHY,
NEW_INTERFACE, DEL_INTERFACE events.
This commit is contained in:
Denis Kenzior 2016-05-31 16:23:12 -05:00
parent 0b0fd5639f
commit 3563c65111
1 changed files with 7 additions and 108 deletions
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115
src/netdev.c
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@ -34,14 +34,7 @@
#include "src/wiphy.h"
#include "src/netdev.h"
struct netdev_data {
uint32_t index;
uint32_t flags;
char ifname[IF_NAMESIZE];
};
static struct l_netlink *rtnl = NULL;
static struct l_hashmap *netdev_list = NULL;
static void do_debug(const char *str, void *user_data)
{
@ -115,94 +108,6 @@ void netdev_set_linkmode_and_operstate(uint32_t ifindex,
l_free(rtmmsg);
}
static void free_netdev_data(void *user_data)
{
struct netdev_data *netdev = user_data;
l_free(netdev);
}
static void newlink_notify(const struct ifinfomsg *ifi, int bytes)
{
struct netdev_data *netdev;
uint32_t index = ifi->ifi_index;
struct rtattr *rta;
netdev = l_hashmap_lookup(netdev_list, L_UINT_TO_PTR(index));
if (!netdev) {
netdev = l_new(struct netdev_data, 1);
netdev->index = index;
if (!l_hashmap_insert(netdev_list,
L_UINT_TO_PTR(index), netdev)) {
free_netdev_data(netdev);
return;
}
}
netdev->flags = ifi->ifi_flags;
for (rta = IFLA_RTA(ifi); RTA_OK(rta, bytes);
rta = RTA_NEXT(rta, bytes)) {
switch (rta->rta_type) {
case IFLA_IFNAME:
if (RTA_PAYLOAD(rta) <= IF_NAMESIZE)
strcpy(netdev->ifname, RTA_DATA(rta));
break;
}
}
}
static void dellink_notify(const struct ifinfomsg *ifi, int bytes)
{
struct netdev_data *netdev;
uint32_t index = ifi->ifi_index;
wiphy_notify_dellink(index);
netdev = l_hashmap_remove(netdev_list, L_UINT_TO_PTR(index));
if (!netdev)
return;
free_netdev_data(netdev);
}
static void link_notify(uint16_t type, const void *data, uint32_t len,
void *user_data)
{
const struct ifinfomsg *ifi = data;
int bytes;
if (ifi->ifi_type != ARPHRD_ETHER)
return;
bytes = len - NLMSG_ALIGN(sizeof(struct ifinfomsg));
switch (type) {
case RTM_NEWLINK:
newlink_notify(ifi, bytes);
break;
case RTM_DELLINK:
dellink_notify(ifi, bytes);
break;
}
}
static void netdev_destroy(void)
{
/*
* The netlink object keeps track of the registered notification
* callbacks and their multicast memberships. When destroying the
* netlink object, all resources will be freed.
*/
l_netlink_destroy(rtnl);
rtnl = NULL;
l_hashmap_destroy(netdev_list, free_netdev_data);
netdev_list = NULL;
}
bool netdev_init(void)
{
if (rtnl)
@ -219,19 +124,7 @@ bool netdev_init(void)
if (getenv("IWD_RTNL_DEBUG"))
l_netlink_set_debug(rtnl, do_debug, "[RTNL] ", NULL);
netdev_list = l_hashmap_new();
if (!l_netlink_register(rtnl, RTNLGRP_LINK, link_notify, NULL, NULL)) {
l_error("Failed to register link notification");
goto destroy;
}
return true;
destroy:
netdev_destroy();
return false;
}
bool netdev_exit(void)
@ -241,7 +134,13 @@ bool netdev_exit(void)
l_debug("Closing route netlink socket");
netdev_destroy();
/*
* The netlink object keeps track of the registered notification
* callbacks and their multicast memberships. When destroying the
* netlink object, all resources will be freed.
*/
l_netlink_destroy(rtnl);
rtnl = NULL;
return true;
}