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netdev: Add function to set the linkmode and operstate of the link

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This is needed after connecting successfully to AP.
This commit is contained in:
Jukka Rissanen 2015-03-27 09:54:24 +02:00 committed by Denis Kenzior
parent 42622525d2
commit 6dbd544a55
2 changed files with 71 additions and 0 deletions
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65
src/netdev.c
View File

@ -49,6 +49,71 @@ static void do_debug(const char *str, void *user_data)
l_info("%s%s", prefix, str);
}
static size_t rta_add_u8(void *rta_buf, unsigned short type, uint8_t value)
{
struct rtattr *rta = rta_buf;
rta->rta_len = RTA_LENGTH(sizeof(uint8_t));
rta->rta_type = type;
*((uint8_t *) RTA_DATA(rta)) = value;
return RTA_SPACE(sizeof(uint8_t));
}
struct cb_data {
netdev_command_func_t callback;
void *user_data;
};
static void netlink_result(int error, uint16_t type, const void *data,
uint32_t len, void *user_data)
{
struct cb_data *cb_data = user_data;
if (!cb_data)
return;
cb_data->callback(error < 0 ? false : true, cb_data->user_data);
l_free(cb_data);
}
void netdev_set_linkmode_and_operstate(uint32_t ifindex,
uint8_t linkmode, uint8_t operstate,
netdev_command_func_t callback, void *user_data)
{
struct ifinfomsg *rtmmsg;
void *rta_buf;
size_t bufsize;
struct cb_data *cb_data = NULL;
bufsize = NLMSG_LENGTH(sizeof(struct ifinfomsg)) +
RTA_SPACE(sizeof(uint8_t)) + RTA_SPACE(sizeof(uint8_t));
rtmmsg = l_malloc(bufsize);
memset(rtmmsg, 0, bufsize);
rtmmsg->ifi_family = AF_UNSPEC;
rtmmsg->ifi_index = ifindex;
rta_buf = rtmmsg + 1;
rta_buf += rta_add_u8(rta_buf, IFLA_LINKMODE, linkmode);
rta_buf += rta_add_u8(rta_buf, IFLA_OPERSTATE, operstate);
if (callback) {
cb_data = l_new(struct cb_data, 1);
cb_data->callback = callback;
cb_data->user_data = user_data;
}
l_netlink_send(rtnl, RTM_SETLINK, 0, rtmmsg,
rta_buf - (void *) rtmmsg,
netlink_result, cb_data, NULL);
l_free(rtmmsg);
}
static void free_netdev_data(void *user_data)
{
struct netdev_data *netdev = user_data;

6
src/netdev.h
View File

@ -22,5 +22,11 @@
#include <stdbool.h>
typedef void (*netdev_command_func_t) (bool result, void *user_data);
void netdev_set_linkmode_and_operstate(uint32_t ifindex,
uint8_t linkmode, uint8_t operstate,
netdev_command_func_t cb, void *user_data);
bool netdev_init(void);
bool netdev_exit(void);