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netdev: Add initial netdev_connect logic

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This commit is contained in:
Denis Kenzior 2016-06-14 11:17:43 -05:00
parent 6bd71066ff
commit 51f89e34e9
2 changed files with 94 additions and 0 deletions
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65
src/netdev.c
View File

@ -29,11 +29,14 @@
#include <net/if_arp.h>
#include <net/if.h>
#include <linux/if_ether.h>
#include <errno.h>
#include <ell/ell.h>
#include "linux/nl80211.h"
#include "src/wiphy.h"
#include "src/device.h"
#include "src/scan.h"
#include "src/netdev.h"
struct netdev {
@ -41,6 +44,10 @@ struct netdev {
char name[IFNAMSIZ];
uint32_t type;
uint8_t addr[ETH_ALEN];
netdev_event_func_t event_filter;
netdev_connect_cb_t connect_cb;
void *user_data;
};
static struct l_netlink *rtnl = NULL;
@ -160,6 +167,64 @@ struct netdev *netdev_find(int ifindex)
return l_queue_find(netdev_list, netdev_match, L_UINT_TO_PTR(ifindex));
}
static void netdev_cmd_authenticate_cb(struct l_genl_msg *msg, void *user_data)
{
struct netdev *netdev = user_data;
if (l_genl_msg_get_error(msg) >= 0) {
if (netdev->event_filter)
netdev->event_filter(netdev,
NETDEV_EVENT_AUTHENTICATING,
netdev->user_data);
return;
}
if (netdev->connect_cb)
netdev->connect_cb(netdev, NETDEV_RESULT_AUTHENTICATION_FAILED,
netdev->user_data);
}
static struct l_genl_msg *netdev_build_cmd_authenticate(struct netdev *netdev,
struct scan_bss *bss)
{
uint32_t auth_type = NL80211_AUTHTYPE_OPEN_SYSTEM;
struct l_genl_msg *msg;
msg = l_genl_msg_new_sized(NL80211_CMD_AUTHENTICATE, 512);
l_genl_msg_append_attr(msg, NL80211_ATTR_IFINDEX, 4, &netdev->index);
l_genl_msg_append_attr(msg, NL80211_ATTR_WIPHY_FREQ,
4, &bss->frequency);
l_genl_msg_append_attr(msg, NL80211_ATTR_MAC, ETH_ALEN, bss->addr);
l_genl_msg_append_attr(msg, NL80211_ATTR_SSID,
bss->ssid_len, bss->ssid);
l_genl_msg_append_attr(msg, NL80211_ATTR_AUTH_TYPE, 4, &auth_type);
return msg;
}
int netdev_connect(struct netdev *netdev, struct scan_bss *bss,
struct eapol_sm *sm,
netdev_event_func_t event_filter,
netdev_connect_cb_t cb, void *user_data)
{
struct l_genl_msg *authenticate;
authenticate = netdev_build_cmd_authenticate(netdev, bss);
if (!authenticate)
return -EINVAL;
if (!l_genl_family_send(nl80211, authenticate,
netdev_cmd_authenticate_cb, netdev, NULL))
return -EIO;
netdev->event_filter = event_filter;
netdev->connect_cb = cb;
netdev->user_data = user_data;
return 0;
}
static void netdev_get_interface_callback(struct l_genl_msg *msg,
void *user_data)
{

29
src/netdev.h
View File

@ -23,8 +23,32 @@
#include <stdbool.h>
struct netdev;
struct scan_bss;
struct eapol_sm *sm;
enum netdev_result {
NETDEV_RESULT_OK,
NETDEV_RESULT_AUTHENTICATION_FAILED,
NETDEV_RESULT_ASSOCIATION_FAILED,
NETDEV_RESULT_HANDSHAKE_FAILED,
NETDEV_RESULT_KEY_SETTING_FAILED,
};
enum netdev_event {
NETDEV_EVENT_AUTHENTICATING,
NETDEV_EVENT_ASSOCIATING,
NETDEV_EVENT_4WAY_HANDSHAKE,
NETDEV_EVENT_SETTING_KEYS,
NETDEV_EVENT_LOST_BEACON,
};
typedef void (*netdev_command_func_t) (bool result, void *user_data);
typedef void (*netdev_connect_cb_t)(struct netdev *netdev,
enum netdev_result result,
void *user_data);
typedef void (*netdev_event_func_t)(struct netdev *netdev,
enum netdev_event event,
void *user_data);
void netdev_set_linkmode_and_operstate(uint32_t ifindex,
uint8_t linkmode, uint8_t operstate,
@ -35,6 +59,11 @@ uint32_t netdev_get_ifindex(struct netdev *netdev);
uint32_t netdev_get_iftype(struct netdev *netdev);
const char *netdev_get_name(struct netdev *netdev);
int netdev_connect(struct netdev *netdev, struct scan_bss *bss,
struct eapol_sm *sm,
netdev_event_func_t event_filter,
netdev_connect_cb_t cb, void *user_data);
struct netdev *netdev_find(int ifindex);
bool netdev_init(struct l_genl_family *in);