584 lines
13 KiB
C
584 lines
13 KiB
C
/******************************************************************************
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*
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* Copyright(c) 2007 - 2020 Realtek Corporation.
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*
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* This program is free software; you can redistribute it and/or modify it
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* under the terms of version 2 of the GNU General Public License as
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* published by the Free Software Foundation.
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*
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* This program is distributed in the hope that it will be useful, but WITHOUT
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
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* more details.
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*
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*****************************************************************************/
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#define _RTW_NLRTW_C_
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#include <drv_types.h>
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#include "nlrtw.h"
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#ifdef CONFIG_RTW_NLRTW
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#include <net/netlink.h>
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#include <net/genetlink.h>
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#if (LINUX_VERSION_CODE >= KERNEL_VERSION(3, 7, 0))
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#include <uapi/linux/netlink.h>
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#endif
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enum nlrtw_cmds {
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NLRTW_CMD_UNSPEC,
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NLRTW_CMD_CHANNEL_UTILIZATION,
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NLRTW_CMD_REG_CHANGE,
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NLRTW_CMD_REG_BEACON_HINT,
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NLRTW_CMD_RADAR_EVENT,
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NLRTW_CMD_RADIO_OPMODE,
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__NLRTW_CMD_AFTER_LAST,
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NLRTW_CMD_MAX = __NLRTW_CMD_AFTER_LAST - 1
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};
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enum nlrtw_attrs {
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NLRTW_ATTR_UNSPEC,
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NLRTW_ATTR_WIPHY_NAME,
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NLRTW_ATTR_CHANNEL_UTILIZATIONS,
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NLRTW_ATTR_CHANNEL_UTILIZATION_THRESHOLD,
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NLRTW_ATTR_CHANNEL_CENTER,
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NLRTW_ATTR_CHANNEL_WIDTH,
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NLRTW_ATTR_RADAR_EVENT,
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NLRTW_ATTR_OP_CLASS,
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NLRTW_ATTR_OP_CHANNEL,
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NLRTW_ATTR_OP_TXPWR_MAX,
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NLRTW_ATTR_IF_OPMODES,
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__NLRTW_ATTR_AFTER_LAST,
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NUM_NLRTW_ATTR = __NLRTW_ATTR_AFTER_LAST,
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NLRTW_ATTR_MAX = __NLRTW_ATTR_AFTER_LAST - 1
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};
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enum nlrtw_ch_util_attrs {
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__NLRTW_ATTR_CHANNEL_UTILIZATION_INVALID,
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NLRTW_ATTR_CHANNEL_UTILIZATION_VALUE,
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NLRTW_ATTR_CHANNEL_UTILIZATION_BSSID,
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__NLRTW_ATTR_CHANNEL_UTILIZATION_AFTER_LAST,
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NUM_NLRTW_ATTR_CHANNEL_UTILIZATION = __NLRTW_ATTR_CHANNEL_UTILIZATION_AFTER_LAST,
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NLRTW_ATTR_CHANNEL_UTILIZATION_MAX = __NLRTW_ATTR_CHANNEL_UTILIZATION_AFTER_LAST - 1
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};
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enum nlrtw_radar_event {
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NLRTW_RADAR_DETECTED,
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NLRTW_RADAR_CAC_FINISHED,
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NLRTW_RADAR_CAC_ABORTED,
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NLRTW_RADAR_NOP_FINISHED,
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NLRTW_RADAR_NOP_STARTED, /* NON_OCP started not by local radar detection */
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};
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enum nlrtw_if_opmode_attrs {
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NLRTW_IF_OPMODE_UNSPEC,
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NLRTW_IF_OPMODE_MACADDR,
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NLRTW_IF_OPMODE_OP_CLASS,
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NLRTW_IF_OPMODE_OP_CHANNEL,
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__NLRTW_IF_OPMODE_ATTR_AFTER_LAST,
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NUM_NLRTW_IF_OPMODE_ATTR = __NLRTW_IF_OPMODE_ATTR_AFTER_LAST,
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NLRTW_IF_OPMODE_ATTR_MAX = __NLRTW_IF_OPMODE_ATTR_AFTER_LAST - 1
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};
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static int nlrtw_ch_util_set(struct sk_buff *skb, struct genl_info *info)
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{
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unsigned int msg;
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if (!info->attrs[NLRTW_ATTR_CHANNEL_UTILIZATION_THRESHOLD])
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return -EINVAL;
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msg = nla_get_u8(info->attrs[NLRTW_ATTR_CHANNEL_UTILIZATION_THRESHOLD]);
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return 0;
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}
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static struct nla_policy nlrtw_genl_policy[NUM_NLRTW_ATTR] = {
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[NLRTW_ATTR_CHANNEL_UTILIZATION_THRESHOLD] = { .type = NLA_U8 },
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};
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static struct genl_ops nlrtw_genl_ops[] = {
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{
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.cmd = NLRTW_CMD_CHANNEL_UTILIZATION,
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.flags = 0,
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#if LINUX_VERSION_CODE < KERNEL_VERSION(5, 2, 0)
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.policy = nlrtw_genl_policy,
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#endif
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.doit = nlrtw_ch_util_set,
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.dumpit = NULL,
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},
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};
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enum nlrtw_multicast_groups {
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NLRTW_MCGRP_DEFAULT,
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};
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static struct genl_multicast_group nlrtw_genl_mcgrp[] = {
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[NLRTW_MCGRP_DEFAULT] = { .name = "nlrtw_default" },
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};
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/* family definition */
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static struct genl_family nlrtw_genl_family = {
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.hdrsize = 0,
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.name = "nlrtw_"DRV_NAME,
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.version = 1,
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.maxattr = NLRTW_ATTR_MAX,
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#if LINUX_VERSION_CODE >= KERNEL_VERSION(5, 2, 0)
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.policy = nlrtw_genl_policy,
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#endif
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.netnsok = true,
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#if LINUX_VERSION_CODE >= KERNEL_VERSION(3, 10, 12)
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.module = THIS_MODULE,
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#endif
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#if LINUX_VERSION_CODE >= KERNEL_VERSION(3, 13, 0)
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.ops = nlrtw_genl_ops,
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.n_ops = ARRAY_SIZE(nlrtw_genl_ops),
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.mcgrps = nlrtw_genl_mcgrp,
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.n_mcgrps = ARRAY_SIZE(nlrtw_genl_mcgrp),
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#endif
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};
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static inline int nlrtw_multicast(const struct genl_family *family,
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struct sk_buff *skb, u32 portid,
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unsigned int group, gfp_t flags)
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{
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int ret;
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#if LINUX_VERSION_CODE >= KERNEL_VERSION(3, 13, 0)
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ret = genlmsg_multicast(&nlrtw_genl_family, skb, portid, group, flags);
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#else
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ret = genlmsg_multicast(skb, portid, nlrtw_genl_mcgrp[group].id, flags);
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#endif
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return ret;
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}
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int rtw_nlrtw_ch_util_rpt(_adapter *adapter, u8 n_rpts, u8 *val, u8 **mac_addr)
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{
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struct sk_buff *skb = NULL;
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void *msg_header = NULL;
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struct nlattr *nl_ch_util, *nl_ch_utils;
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struct wiphy *wiphy;
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u8 i;
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int ret;
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wiphy = adapter_to_wiphy(adapter);
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if (!wiphy)
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return -EINVAL;
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/* allocate memory */
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skb = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
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if (!skb) {
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nlmsg_free(skb);
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return -ENOMEM;
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}
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/* create the message headers */
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msg_header = genlmsg_put(skb, 0, 0, &nlrtw_genl_family, 0,
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NLRTW_CMD_CHANNEL_UTILIZATION);
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if (!msg_header) {
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ret = -ENOMEM;
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goto err_out;
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}
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/* add attributes */
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ret = nla_put_string(skb, NLRTW_ATTR_WIPHY_NAME, wiphy_name(wiphy));
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nl_ch_utils = nla_nest_start(skb, NLRTW_ATTR_CHANNEL_UTILIZATIONS);
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if (!nl_ch_utils) {
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ret = -EMSGSIZE;
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goto err_out;
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}
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for (i = 0; i < n_rpts; i++) {
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nl_ch_util = nla_nest_start(skb, i);
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if (!nl_ch_util) {
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ret = -EMSGSIZE;
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goto err_out;
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}
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ret = nla_put(skb, NLRTW_ATTR_CHANNEL_UTILIZATION_BSSID, ETH_ALEN, *(mac_addr + i));
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if (ret != 0)
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goto err_out;
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ret = nla_put_u8(skb, NLRTW_ATTR_CHANNEL_UTILIZATION_VALUE, *(val + i));
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if (ret != 0)
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goto err_out;
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nla_nest_end(skb, nl_ch_util);
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}
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nla_nest_end(skb, nl_ch_utils);
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/* finalize the message */
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genlmsg_end(skb, msg_header);
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ret = nlrtw_multicast(&nlrtw_genl_family, skb, 0, NLRTW_MCGRP_DEFAULT, GFP_KERNEL);
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if (ret == -ESRCH) {
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RTW_INFO("[%s] return ESRCH(No such process)."
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" Maybe no process waits for this msg\n", __func__);
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return ret;
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} else if (ret != 0) {
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RTW_INFO("[%s] ret = %d\n", __func__, ret);
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return ret;
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}
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return 0;
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err_out:
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nlmsg_free(skb);
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return ret;
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}
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int rtw_nlrtw_reg_change_event(_adapter *adapter)
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{
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struct sk_buff *skb = NULL;
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void *msg_header = NULL;
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struct wiphy *wiphy;
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u8 i;
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int ret;
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wiphy = adapter_to_wiphy(adapter);
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if (!wiphy) {
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ret = -EINVAL;
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goto err_out;
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}
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/* allocate memory */
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skb = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
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if (!skb) {
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ret = -ENOMEM;
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goto err_out;
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}
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/* create the message headers */
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msg_header = genlmsg_put(skb, 0, 0, &nlrtw_genl_family, 0, NLRTW_CMD_REG_CHANGE);
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if (!msg_header) {
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ret = -ENOMEM;
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goto err_out;
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}
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/* add attributes */
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ret = nla_put_string(skb, NLRTW_ATTR_WIPHY_NAME, wiphy_name(wiphy));
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if (ret)
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goto err_out;
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/* finalize the message */
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genlmsg_end(skb, msg_header);
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ret = nlrtw_multicast(&nlrtw_genl_family, skb, 0, NLRTW_MCGRP_DEFAULT, GFP_KERNEL);
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if (ret == -ESRCH) {
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RTW_DBG(FUNC_WIPHY_FMT" return -ESRCH(No such process)."
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" Maybe no process waits for this msg\n", FUNC_WIPHY_ARG(wiphy));
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return ret;
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} else if (ret != 0) {
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RTW_WARN(FUNC_WIPHY_FMT" return %d\n", FUNC_WIPHY_ARG(wiphy), ret);
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return ret;
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}
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return 0;
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err_out:
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if (skb)
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nlmsg_free(skb);
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return ret;
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}
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int rtw_nlrtw_reg_beacon_hint_event(_adapter *adapter)
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{
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struct sk_buff *skb = NULL;
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void *msg_header = NULL;
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struct wiphy *wiphy;
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u8 i;
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int ret;
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wiphy = adapter_to_wiphy(adapter);
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if (!wiphy) {
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ret = -EINVAL;
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goto err_out;
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}
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/* allocate memory */
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skb = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
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if (!skb) {
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ret = -ENOMEM;
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goto err_out;
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}
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/* create the message headers */
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msg_header = genlmsg_put(skb, 0, 0, &nlrtw_genl_family, 0, NLRTW_CMD_REG_BEACON_HINT);
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if (!msg_header) {
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ret = -ENOMEM;
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goto err_out;
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}
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/* add attributes */
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ret = nla_put_string(skb, NLRTW_ATTR_WIPHY_NAME, wiphy_name(wiphy));
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if (ret)
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goto err_out;
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/* finalize the message */
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genlmsg_end(skb, msg_header);
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ret = nlrtw_multicast(&nlrtw_genl_family, skb, 0, NLRTW_MCGRP_DEFAULT, GFP_KERNEL);
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if (ret == -ESRCH) {
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RTW_DBG(FUNC_WIPHY_FMT" return -ESRCH(No such process)."
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" Maybe no process waits for this msg\n", FUNC_WIPHY_ARG(wiphy));
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return ret;
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} else if (ret != 0) {
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RTW_WARN(FUNC_WIPHY_FMT" return %d\n", FUNC_WIPHY_ARG(wiphy), ret);
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return ret;
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}
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return 0;
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err_out:
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if (skb)
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nlmsg_free(skb);
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return ret;
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}
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#ifdef CONFIG_DFS_MASTER
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static int _rtw_nlrtw_radar_event(_adapter *adapter, enum nlrtw_radar_event evt_type, u8 cch, u8 bw)
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{
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struct sk_buff *skb = NULL;
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void *msg_header = NULL;
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struct wiphy *wiphy;
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u8 i;
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int ret;
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wiphy = adapter_to_wiphy(adapter);
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if (!wiphy) {
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ret = -EINVAL;
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goto err_out;
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}
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/* allocate memory */
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skb = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
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if (!skb) {
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ret = -ENOMEM;
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goto err_out;
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}
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/* create the message headers */
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msg_header = genlmsg_put(skb, 0, 0, &nlrtw_genl_family, 0, NLRTW_CMD_RADAR_EVENT);
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if (!msg_header) {
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ret = -ENOMEM;
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goto err_out;
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}
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/* add attributes */
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ret = nla_put_string(skb, NLRTW_ATTR_WIPHY_NAME, wiphy_name(wiphy));
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if (ret)
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goto err_out;
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ret = nla_put_u8(skb, NLRTW_ATTR_RADAR_EVENT, (uint8_t)evt_type);
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if (ret != 0)
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goto err_out;
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ret = nla_put_u8(skb, NLRTW_ATTR_CHANNEL_CENTER, cch);
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if (ret != 0)
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goto err_out;
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ret = nla_put_u8(skb, NLRTW_ATTR_CHANNEL_WIDTH, bw);
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if (ret != 0)
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goto err_out;
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|
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/* finalize the message */
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genlmsg_end(skb, msg_header);
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ret = nlrtw_multicast(&nlrtw_genl_family, skb, 0, NLRTW_MCGRP_DEFAULT, GFP_KERNEL);
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if (ret == -ESRCH) {
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RTW_DBG(FUNC_WIPHY_FMT" return -ESRCH(No such process)."
|
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" Maybe no process waits for this msg\n", FUNC_WIPHY_ARG(wiphy));
|
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return ret;
|
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} else if (ret != 0) {
|
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RTW_WARN(FUNC_WIPHY_FMT" return %d\n", FUNC_WIPHY_ARG(wiphy), ret);
|
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return ret;
|
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}
|
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|
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return 0;
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|
|
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err_out:
|
|
if (skb)
|
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nlmsg_free(skb);
|
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return ret;
|
|
}
|
|
|
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int rtw_nlrtw_radar_detect_event(_adapter *adapter, u8 cch, u8 bw)
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{
|
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return _rtw_nlrtw_radar_event(adapter, NLRTW_RADAR_DETECTED, cch, bw);
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}
|
|
|
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int rtw_nlrtw_cac_finish_event(_adapter *adapter, u8 cch, u8 bw)
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{
|
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return _rtw_nlrtw_radar_event(adapter, NLRTW_RADAR_CAC_FINISHED, cch, bw);
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}
|
|
|
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int rtw_nlrtw_cac_abort_event(_adapter *adapter, u8 cch, u8 bw)
|
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{
|
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return _rtw_nlrtw_radar_event(adapter, NLRTW_RADAR_CAC_ABORTED, cch, bw);
|
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}
|
|
|
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int rtw_nlrtw_nop_finish_event(_adapter *adapter, u8 cch, u8 bw)
|
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{
|
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return _rtw_nlrtw_radar_event(adapter, NLRTW_RADAR_NOP_FINISHED, cch, bw);
|
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}
|
|
|
|
int rtw_nlrtw_nop_start_event(_adapter *adapter, u8 cch, u8 bw)
|
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{
|
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return _rtw_nlrtw_radar_event(adapter, NLRTW_RADAR_NOP_STARTED, cch, bw);
|
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}
|
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#endif /* CONFIG_DFS_MASTER */
|
|
|
|
int rtw_nlrtw_radio_opmode_notify(struct rf_ctl_t *rfctl)
|
|
{
|
|
struct dvobj_priv *dvobj = rfctl_to_dvobj(rfctl);
|
|
_adapter *iface;
|
|
struct sk_buff *skb = NULL;
|
|
void *msg_header = NULL;
|
|
struct nlattr *nl_if_opmodes, *nl_if_opmode;
|
|
struct wiphy *wiphy;
|
|
u16 op_txpwr_max_u16;
|
|
u8 i;
|
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int ret;
|
|
|
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wiphy = dvobj_to_wiphy(dvobj);
|
|
if (!wiphy) {
|
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ret = -EINVAL;
|
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goto err_out;
|
|
}
|
|
|
|
/* allocate memory */
|
|
skb = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
|
|
if (!skb) {
|
|
ret = -ENOMEM;
|
|
goto err_out;
|
|
}
|
|
|
|
/* create the message headers */
|
|
msg_header = genlmsg_put(skb, 0, 0, &nlrtw_genl_family, 0, NLRTW_CMD_RADIO_OPMODE);
|
|
if (!msg_header) {
|
|
ret = -ENOBUFS;
|
|
goto err_out;
|
|
}
|
|
|
|
/* add attributes */
|
|
ret = nla_put_string(skb, NLRTW_ATTR_WIPHY_NAME, wiphy_name(wiphy));
|
|
if (ret)
|
|
goto err_out;
|
|
|
|
ret = nla_put_u8(skb, NLRTW_ATTR_OP_CLASS, rfctl->op_class);
|
|
if (ret != 0)
|
|
goto err_out;
|
|
|
|
ret = nla_put_u8(skb, NLRTW_ATTR_OP_CHANNEL, rfctl->op_ch);
|
|
if (ret != 0)
|
|
goto err_out;
|
|
|
|
*((s16 *)&op_txpwr_max_u16) = rfctl->op_txpwr_max;
|
|
ret = nla_put_u16(skb, NLRTW_ATTR_OP_TXPWR_MAX, op_txpwr_max_u16);
|
|
if (ret != 0)
|
|
goto err_out;
|
|
|
|
if (0)
|
|
RTW_INFO("radio: %u,%u %d\n", rfctl->op_class, rfctl->op_ch, rfctl->op_txpwr_max);
|
|
|
|
nl_if_opmodes = nla_nest_start(skb, NLRTW_ATTR_IF_OPMODES);
|
|
if (!nl_if_opmodes) {
|
|
ret = -ENOBUFS;
|
|
goto err_out;
|
|
}
|
|
|
|
for (i = 0; i < dvobj->iface_nums; i++) {
|
|
if (!dvobj->padapters[i])
|
|
continue;
|
|
iface = dvobj->padapters[i];
|
|
|
|
if (!rfctl->if_op_class[i] || !rfctl->if_op_ch[i])
|
|
continue;
|
|
|
|
if (0)
|
|
RTW_INFO(ADPT_FMT": %u,%u\n", ADPT_ARG(iface), rfctl->if_op_class[i], rfctl->if_op_ch[i]);
|
|
|
|
nl_if_opmode = nla_nest_start(skb, i + 1);
|
|
if (!nl_if_opmode) {
|
|
ret = -ENOBUFS;
|
|
goto err_out;
|
|
}
|
|
|
|
ret = nla_put(skb, NLRTW_IF_OPMODE_MACADDR, ETH_ALEN, adapter_mac_addr(iface));
|
|
if (ret != 0)
|
|
goto err_out;
|
|
|
|
ret = nla_put_u8(skb, NLRTW_IF_OPMODE_OP_CLASS, rfctl->if_op_class[i]);
|
|
if (ret != 0)
|
|
goto err_out;
|
|
|
|
ret = nla_put_u8(skb, NLRTW_IF_OPMODE_OP_CHANNEL, rfctl->if_op_ch[i]);
|
|
if (ret != 0)
|
|
goto err_out;
|
|
|
|
nla_nest_end(skb, nl_if_opmode);
|
|
}
|
|
|
|
nla_nest_end(skb, nl_if_opmodes);
|
|
|
|
/* finalize the message */
|
|
genlmsg_end(skb, msg_header);
|
|
|
|
ret = nlrtw_multicast(&nlrtw_genl_family, skb, 0, NLRTW_MCGRP_DEFAULT, GFP_KERNEL);
|
|
if (ret == -ESRCH) {
|
|
RTW_DBG(FUNC_WIPHY_FMT" return -ESRCH(No such process)."
|
|
" Maybe no process waits for this msg\n", FUNC_WIPHY_ARG(wiphy));
|
|
return ret;
|
|
} else if (ret != 0) {
|
|
RTW_WARN(FUNC_WIPHY_FMT" return %d\n", FUNC_WIPHY_ARG(wiphy), ret);
|
|
return ret;
|
|
}
|
|
|
|
return 0;
|
|
|
|
err_out:
|
|
if (skb)
|
|
nlmsg_free(skb);
|
|
return ret;
|
|
}
|
|
|
|
int rtw_nlrtw_init(void)
|
|
{
|
|
int err;
|
|
|
|
#if LINUX_VERSION_CODE >= KERNEL_VERSION(3, 13, 0)
|
|
err = genl_register_family(&nlrtw_genl_family);
|
|
if (err)
|
|
return err;
|
|
#else
|
|
err = genl_register_family_with_ops(&nlrtw_genl_family, nlrtw_genl_ops, ARRAY_SIZE(nlrtw_genl_ops));
|
|
if (err)
|
|
return err;
|
|
|
|
err = genl_register_mc_group(&nlrtw_genl_family, &nlrtw_genl_mcgrp[0]);
|
|
if (err) {
|
|
genl_unregister_family(&nlrtw_genl_family);
|
|
return err;
|
|
}
|
|
#endif
|
|
RTW_INFO("[%s] %s\n", __func__, nlrtw_genl_family.name);
|
|
return 0;
|
|
}
|
|
|
|
int rtw_nlrtw_deinit(void)
|
|
{
|
|
int err;
|
|
|
|
err = genl_unregister_family(&nlrtw_genl_family);
|
|
RTW_INFO("[%s] err = %d\n", __func__, err);
|
|
|
|
return err;
|
|
}
|
|
#endif /* CONFIG_RTW_NLRTW */
|