Add support for sending netlink messages
This allows sigma_dut to issue nl80211 commands directly without having
to use an external tool like iw (or go through wpa_supplicant) to do so.
An example of how to send a vendor command to the driver is provided in
atheros.c by function cmd_atheros_config_scan(), which is to enable or
disable scan functionality in the driver.
Signed-off-by: Jouni Malinen <jouni@codeaurora.org>
diff --git a/atheros.c b/atheros.c
index 72be3b8..6367427 100644
--- a/atheros.c
+++ b/atheros.c
@@ -64,7 +64,56 @@
}
+#ifdef NL80211_SUPPORT
+static int cmd_atheros_config_scan(struct sigma_dut *dut,
+ struct sigma_conn *conn,
+ struct sigma_cmd *cmd)
+{
+ struct nl_msg *msg;
+ int ret;
+ struct nlattr *params;
+ const char *val;
+ int ifindex;
+
+ val = get_param(cmd, "enable");
+ if (!val)
+ return -1;
+ ifindex = if_nametoindex("wlan0");
+ if (!(msg = nl80211_drv_msg(dut, dut->nl_ctx, ifindex, 0,
+ NL80211_CMD_VENDOR)) ||
+ nla_put_u32(msg, NL80211_ATTR_IFINDEX, ifindex) ||
+ nla_put_u32(msg, NL80211_ATTR_VENDOR_ID, OUI_QCA) ||
+ nla_put_u32(msg, NL80211_ATTR_VENDOR_SUBCMD,
+ QCA_NL80211_VENDOR_SUBCMD_SET_WIFI_CONFIGURATION) ||
+ !(params = nla_nest_start(msg, NL80211_ATTR_VENDOR_DATA)) ||
+ nla_put_u8(msg,
+ QCA_WLAN_VENDOR_ATTR_CONFIG_SCAN_ENABLE,
+ atoi(val))) {
+ sigma_dut_print(dut, DUT_MSG_ERROR,
+ "%s: err in adding vendor_cmd and vendor_data",
+ __func__);
+ nlmsg_free(msg);
+ return -1;
+ }
+ nla_nest_end(msg, params);
+
+ ret = send_and_recv_msgs(dut, dut->nl_ctx, msg, NULL, NULL);
+ if (ret) {
+ sigma_dut_print(dut, DUT_MSG_ERROR,
+ "%s: err in send_and_recv_msgs, ret=%d",
+ __func__, ret);
+ return ret;
+ }
+
+ return 0;
+}
+#endif /* NL80211_SUPPORT */
+
+
void atheros_register_cmds(void)
{
sigma_dut_reg_cmd("sta_atheros", req_intf, cmd_sta_atheros);
+#ifdef NL80211_SUPPORT
+ sigma_dut_reg_cmd("atheros_config_scan", NULL, cmd_atheros_config_scan);
+#endif /* NL80211_SUPPORT */
}