44 lines
962 B
C
44 lines
962 B
C
#include <linux/nl80211.h>
|
|
#include <netlink/genl/genl.h>
|
|
#include <netlink/genl/ctrl.h>
|
|
|
|
#include "netlink.h"
|
|
|
|
bool nl_send_dump(nl_recvmsg_msg_cb_t cb, void *cb_arg, int cmd, uint32_t cmd_arg) {
|
|
bool ok = false;
|
|
int ctrl;
|
|
struct nl_sock *sk = NULL;
|
|
struct nl_msg *msg = NULL;
|
|
|
|
|
|
#define CHECK(x) { if (!(x)) { fprintf(stderr, "%s: error on line %d\n", __FILE__, __LINE__); goto out; } }
|
|
|
|
CHECK(sk = nl_socket_alloc());
|
|
CHECK(genl_connect(sk) >= 0);
|
|
|
|
CHECK(ctrl = genl_ctrl_resolve(sk, NL80211_GENL_NAME));
|
|
CHECK(nl_socket_modify_cb(sk, NL_CB_VALID, NL_CB_CUSTOM, cb, cb_arg) == 0);
|
|
CHECK(msg = nlmsg_alloc());
|
|
CHECK(genlmsg_put(msg, 0, 0, ctrl, 0, NLM_F_DUMP, cmd, 0));
|
|
|
|
if (cmd_arg != 0)
|
|
NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, cmd_arg);
|
|
|
|
CHECK(nl_send_auto_complete(sk, msg) >= 0);
|
|
CHECK(nl_recvmsgs_default(sk) >= 0);
|
|
|
|
#undef CHECK
|
|
|
|
ok = true;
|
|
|
|
nla_put_failure:
|
|
out:
|
|
if (msg)
|
|
nlmsg_free(msg);
|
|
|
|
if (sk)
|
|
nl_socket_free(sk);
|
|
|
|
return ok;
|
|
}
|