2  * Netlink helper functions for driver wrappers
14 #include "netlink.h"
23 static void netlink_receive_link(struct netlink_data *netlink,  in netlink_receive_link()  argument
30 	cb(netlink->cfg->ctx, NLMSG_DATA(h),  in netlink_receive_link()
38 	struct netlink_data *netlink = eloop_ctx;  in netlink_receive()  local
52 			wpa_printf(MSG_INFO, "netlink: recvfrom failed: %s",  in netlink_receive()
61 			netlink_receive_link(netlink, netlink->cfg->newlink_cb,  in netlink_receive()
65 			netlink_receive_link(netlink, netlink->cfg->dellink_cb,  in netlink_receive()
74 		wpa_printf(MSG_DEBUG, "netlink: %d extra bytes in the end of "  in netlink_receive()
75 			   "netlink message", left);  in netlink_receive()
93 	struct netlink_data *netlink;  in netlink_init()  local
96 	netlink = os_zalloc(sizeof(*netlink));  in netlink_init()
97 	if (netlink == NULL)  in netlink_init()
100 	netlink->sock = socket(PF_NETLINK, SOCK_RAW, NETLINK_ROUTE);  in netlink_init()
101 	if (netlink->sock < 0) {  in netlink_init()
102 		wpa_printf(MSG_ERROR, "netlink: Failed to open netlink "  in netlink_init()
104 		netlink_deinit(netlink);  in netlink_init()
111 	if (bind(netlink->sock, (struct sockaddr *) &local, sizeof(local)) < 0)  in netlink_init()
113 		wpa_printf(MSG_ERROR, "netlink: Failed to bind netlink "  in netlink_init()
115 		netlink_deinit(netlink);  in netlink_init()
119 	eloop_register_read_sock(netlink->sock, netlink_receive, netlink,  in netlink_init()
122 	netlink->cfg = cfg;  in netlink_init()
124 	return netlink;  in netlink_init()
128 void netlink_deinit(struct netlink_data *netlink)  in netlink_deinit()  argument
130 	if (netlink == NULL)  in netlink_deinit()
132 	if (netlink->sock >= 0) {  in netlink_deinit()
133 		eloop_unregister_read_sock(netlink->sock);  in netlink_deinit()
134 		close(netlink->sock);  in netlink_deinit()
136 	os_free(netlink->cfg);  in netlink_deinit()
137 	os_free(netlink);  in netlink_deinit()
169 int netlink_send_oper_ifla(struct netlink_data *netlink, int ifindex,  in netlink_send_oper_ifla()  argument
214 	wpa_printf(MSG_DEBUG, "netlink: Operstate: ifindex=%d linkmode=%d (%s), operstate=%d (%s)",  in netlink_send_oper_ifla()
218 	ret = send(netlink->sock, &req, req.hdr.nlmsg_len, 0);  in netlink_send_oper_ifla()
220 		wpa_printf(MSG_DEBUG, "netlink: Sending operstate IFLA "  in netlink_send_oper_ifla()