+++ /dev/null
-/*
- * This file is part of wl1251
- *
- * Copyright (C) 2008 Nokia Corporation
- *
- * Contact: Kalle Valo <kalle.valo@nokia.com>
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License
- * version 2 as published by the Free Software Foundation.
- *
- * This program is distributed in the hope that it will be useful, but
- * WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
- * General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
- * 02110-1301 USA
- *
- */
-#include "wl1251_netlink.h"
-
-#include <linux/mutex.h>
-#include <linux/socket.h>
-#include <net/net_namespace.h>
-#include <net/sock.h>
-#include <net/genetlink.h>
-#include <net/wireless.h>
-#include <net/mac80211.h>
-
-#include "wl1251.h"
-#include "wl1251_spi.h"
-#include "wl1251_acx.h"
-
-/* FIXME: this should be changed as soon as user space catches up */
-#define WL1251_NL_NAME "wl1251"
-#define WL1251_NL_VERSION 1
-
-#define WL1251_MAX_TEST_LENGTH 1024
-#define WL1251_MAX_NVS_LENGTH 1024
-
-enum wl1251_nl_commands {
- WL1251_NL_CMD_UNSPEC,
- WL1251_NL_CMD_TEST,
- WL1251_NL_CMD_INTERROGATE,
- WL1251_NL_CMD_CONFIGURE,
- WL1251_NL_CMD_PHY_REG_READ,
- WL1251_NL_CMD_NVS_PUSH,
- WL1251_NL_CMD_REG_WRITE,
- WL1251_NL_CMD_REG_READ,
- WL1251_NL_CMD_SET_PLT_MODE,
-
- __WL1251_NL_CMD_AFTER_LAST
-};
-#define WL1251_NL_CMD_MAX (__WL1251_NL_CMD_AFTER_LAST - 1)
-
-enum wl1251_nl_attrs {
- WL1251_NL_ATTR_UNSPEC,
- WL1251_NL_ATTR_IFNAME,
- WL1251_NL_ATTR_CMD_TEST_PARAM,
- WL1251_NL_ATTR_CMD_TEST_ANSWER,
- WL1251_NL_ATTR_CMD_IE,
- WL1251_NL_ATTR_CMD_IE_LEN,
- WL1251_NL_ATTR_CMD_IE_BUFFER,
- WL1251_NL_ATTR_CMD_IE_ANSWER,
- WL1251_NL_ATTR_REG_ADDR,
- WL1251_NL_ATTR_REG_VAL,
- WL1251_NL_ATTR_NVS_BUFFER,
- WL1251_NL_ATTR_NVS_LEN,
- WL1251_NL_ATTR_PLT_MODE,
-
- __WL1251_NL_ATTR_AFTER_LAST
-};
-#define WL1251_NL_ATTR_MAX (__WL1251_NL_ATTR_AFTER_LAST - 1)
-
-static struct genl_family wl1251_nl_family = {
- .id = GENL_ID_GENERATE,
- .name = WL1251_NL_NAME,
- .hdrsize = 0,
- .version = WL1251_NL_VERSION,
- .maxattr = WL1251_NL_ATTR_MAX,
-};
-
-static struct net_device *ifname_to_netdev(struct net *net,
- struct genl_info *info)
-{
- char *ifname;
-
- if (!info->attrs[WL1251_NL_ATTR_IFNAME])
- return NULL;
-
- ifname = nla_data(info->attrs[WL1251_NL_ATTR_IFNAME]);
-
- wl1251_debug(DEBUG_NETLINK, "Looking for %s", ifname);
-
- return dev_get_by_name(net, ifname);
-}
-
-static struct wl1251 *ifname_to_wl1251(struct net *net, struct genl_info *info)
-{
- struct net_device *netdev;
- struct wireless_dev *wdev;
- struct wiphy *wiphy;
- struct ieee80211_hw *hw;
-
- netdev = ifname_to_netdev(net, info);
- if (netdev == NULL) {
- wl1251_error("Wrong interface");
- return NULL;
- }
-
- wdev = netdev->ieee80211_ptr;
- if (wdev == NULL) {
- wl1251_error("ieee80211_ptr is NULL");
- return NULL;
- }
-
- wiphy = wdev->wiphy;
- if (wiphy == NULL) {
- wl1251_error("wiphy is NULL");
- return NULL;
- }
-
- hw = wiphy_priv(wiphy);
- if (hw == NULL) {
- wl1251_error("hw is NULL");
- return NULL;
- }
-
- dev_put(netdev);
-
- return hw->priv;
-}
-
-static int wl1251_nl_test_cmd(struct sk_buff *skb, struct genl_info *info)
-{
- struct wl1251 *wl;
- struct wl1251_command *cmd;
- char *buf;
- int buf_len, ret, cmd_len;
- u8 answer;
-
- if (!info->attrs[WL1251_NL_ATTR_CMD_TEST_PARAM])
- return -EINVAL;
-
- wl = ifname_to_wl1251(&init_net, info);
- if (wl == NULL) {
- wl1251_error("wl1251 not found");
- return -EINVAL;
- }
-
- cmd = kzalloc(sizeof(*cmd), GFP_KERNEL);
- if (!cmd)
- return -ENOMEM;
-
- buf = nla_data(info->attrs[WL1251_NL_ATTR_CMD_TEST_PARAM]);
- buf_len = nla_len(info->attrs[WL1251_NL_ATTR_CMD_TEST_PARAM]);
- answer = nla_get_u8(info->attrs[WL1251_NL_ATTR_CMD_TEST_ANSWER]);
-
- cmd->header.id = CMD_TEST;
- memcpy(cmd->parameters, buf, buf_len);
- cmd_len = sizeof(struct wl1251_cmd_header) + buf_len;
-
- mutex_lock(&wl->mutex);
- ret = wl1251_cmd_test(wl, cmd, cmd_len, answer);
- mutex_unlock(&wl->mutex);
-
- if (ret < 0) {
- wl1251_error("%s() failed", __func__);
- goto out;
- }
-
- if (answer) {
- struct sk_buff *msg;
- void *hdr;
-
- msg = nlmsg_new(NLMSG_GOODSIZE, GFP_KERNEL);
- if (!msg) {
- ret = -ENOMEM;
- goto out;
- }
-
- hdr = genlmsg_put(msg, info->snd_pid, info->snd_seq,
- &wl1251_nl_family, 0, WL1251_NL_CMD_TEST);
- if (IS_ERR(hdr)) {
- ret = PTR_ERR(hdr);
- goto nla_put_failure;
- }
-
- NLA_PUT_STRING(msg, WL1251_NL_ATTR_IFNAME,
- nla_data(info->attrs[WL1251_NL_ATTR_IFNAME]));
- NLA_PUT(msg, WL1251_NL_ATTR_CMD_TEST_ANSWER,
- sizeof(*cmd), cmd);
-
- ret = genlmsg_end(msg, hdr);
- if (ret < 0) {
- wl1251_error("%s() failed", __func__);
- goto nla_put_failure;
- }
-
- wl1251_debug(DEBUG_NETLINK, "TEST cmd sent, answer");
- ret = genlmsg_reply(msg, info);
- goto out;
-
- nla_put_failure:
- nlmsg_free(msg);
- } else
- wl1251_debug(DEBUG_NETLINK, "TEST cmd sent");
-
-out:
- kfree(cmd);
- return ret;
-}
-
-static int wl1251_nl_interrogate(struct sk_buff *skb, struct genl_info *info)
-{
- struct wl1251 *wl;
- struct sk_buff *msg;
- int ret = -ENOBUFS, cmd_ie, cmd_ie_len;
- struct wl1251_command *cmd;
- void *hdr;
-
- if (!info->attrs[WL1251_NL_ATTR_CMD_IE])
- return -EINVAL;
-
- if (!info->attrs[WL1251_NL_ATTR_CMD_IE_LEN])
- return -EINVAL;
-
- cmd = kzalloc(sizeof(*cmd), GFP_KERNEL);
- if (!cmd)
- return -ENOMEM;
-
- msg = nlmsg_new(NLMSG_GOODSIZE, GFP_KERNEL);
- if (!msg)
- return -ENOMEM;
-
- wl = ifname_to_wl1251(&init_net, info);
- if (wl == NULL) {
- wl1251_error("wl1251 not found");
- ret = -EINVAL;
- goto nla_put_failure;
- }
-
- /* acx id */
- cmd_ie = nla_get_u32(info->attrs[WL1251_NL_ATTR_CMD_IE]);
-
- /* maximum length of acx, including all headers */
- cmd_ie_len = nla_get_u32(info->attrs[WL1251_NL_ATTR_CMD_IE_LEN]);
-
- wl1251_debug(DEBUG_NETLINK, "Getting IE 0x%x (len %d)",
- cmd_ie, cmd_ie_len);
-
- mutex_lock(&wl->mutex);
- ret = wl1251_cmd_interrogate(wl, cmd_ie, cmd, cmd_ie_len);
- mutex_unlock(&wl->mutex);
-
- if (ret < 0) {
- wl1251_error("%s() failed", __func__);
- goto nla_put_failure;
- }
-
- hdr = genlmsg_put(msg, info->snd_pid, info->snd_seq,
- &wl1251_nl_family, 0, WL1251_NL_CMD_INTERROGATE);
- if (IS_ERR(hdr)) {
- ret = PTR_ERR(hdr);
- goto nla_put_failure;
- }
-
- NLA_PUT_STRING(msg, WL1251_NL_ATTR_IFNAME,
- nla_data(info->attrs[WL1251_NL_ATTR_IFNAME]));
- NLA_PUT(msg, WL1251_NL_ATTR_CMD_IE_ANSWER, cmd_ie_len, cmd);
-
- ret = genlmsg_end(msg, hdr);
- if (ret < 0) {
- wl1251_error("%s() failed", __func__);
- goto nla_put_failure;
- }
-
- kfree(cmd);
- return genlmsg_reply(msg, info);
-
- nla_put_failure:
- kfree(cmd);
- nlmsg_free(msg);
-
- return ret;
-}
-
-static int wl1251_nl_configure(struct sk_buff *skb, struct genl_info *info)
-{
- int ret = 0, cmd_ie_len, acx_len;
- struct acx_header *acx = NULL;
- struct sk_buff *msg;
- struct wl1251 *wl;
- void *cmd_ie;
- u16 *id;
-
- if (!info->attrs[WL1251_NL_ATTR_CMD_IE_BUFFER])
- return -EINVAL;
-
- if (!info->attrs[WL1251_NL_ATTR_CMD_IE_LEN])
- return -EINVAL;
-
- msg = nlmsg_new(NLMSG_GOODSIZE, GFP_KERNEL);
- if (!msg)
- return -ENOMEM;
-
- wl = ifname_to_wl1251(&init_net, info);
- if (wl == NULL) {
- wl1251_error("wl1251 not found");
- ret = -EINVAL;
- goto nla_put_failure;
- }
-
- /* contains the acx header but not the cmd header */
- cmd_ie = nla_data(info->attrs[WL1251_NL_ATTR_CMD_IE_BUFFER]);
-
- cmd_ie_len = nla_get_u32(info->attrs[WL1251_NL_ATTR_CMD_IE_LEN]);
-
- /* acx id is in the first two bytes */
- id = cmd_ie;
-
- /* need to add acx_header before cmd_ie, so create a new command */
- acx_len = sizeof(struct acx_header) + cmd_ie_len;
- acx = kzalloc(acx_len, GFP_KERNEL);
- if (!acx) {
- ret = -ENOMEM;
- goto nla_put_failure;
- }
-
- /* copy the acx header and the payload */
- memcpy(&acx->id, cmd_ie, cmd_ie_len);
-
- mutex_lock(&wl->mutex);
- ret = wl1251_cmd_configure(wl, *id, acx, acx_len);
- mutex_unlock(&wl->mutex);
-
- if (ret < 0) {
- wl1251_error("%s() failed", __func__);
- goto nla_put_failure;
- }
-
- wl1251_debug(DEBUG_NETLINK, "CONFIGURE cmd sent");
-
- nla_put_failure:
- kfree(acx);
- nlmsg_free(msg);
-
- return ret;
-}
-
-static int wl1251_nl_phy_reg_read(struct sk_buff *skb, struct genl_info *info)
-{
- struct wl1251 *wl;
- struct sk_buff *msg;
- u32 reg_addr, *reg_value = NULL;
- int ret = 0;
- void *hdr;
-
- if (!info->attrs[WL1251_NL_ATTR_REG_ADDR])
- return -EINVAL;
-
- msg = nlmsg_new(NLMSG_GOODSIZE, GFP_KERNEL);
- if (!msg)
- return -ENOMEM;
-
- wl = ifname_to_wl1251(&init_net, info);
- if (wl == NULL) {
- wl1251_error("wl1251 not found");
- ret = -EINVAL;
- goto nla_put_failure;
- }
-
- reg_value = kmalloc(sizeof(*reg_value), GFP_KERNEL);
- if (!reg_value) {
- ret = -ENOMEM;
- goto nla_put_failure;
- }
-
- reg_addr = nla_get_u32(info->attrs[WL1251_NL_ATTR_REG_ADDR]);
-
- wl1251_debug(DEBUG_NETLINK, "Reading PHY reg 0x%x", reg_addr);
-
- mutex_lock(&wl->mutex);
- ret = wl1251_cmd_read_memory(wl, reg_addr, reg_value,
- sizeof(*reg_value));
- mutex_unlock(&wl->mutex);
-
- if (ret < 0) {
- wl1251_error("%s() failed", __func__);
- goto nla_put_failure;
- }
-
-
- hdr = genlmsg_put(msg, info->snd_pid, info->snd_seq,
- &wl1251_nl_family, 0, WL1251_NL_CMD_PHY_REG_READ);
- if (IS_ERR(hdr)) {
- ret = PTR_ERR(hdr);
- goto nla_put_failure;
- }
-
- NLA_PUT_STRING(msg, WL1251_NL_ATTR_IFNAME,
- nla_data(info->attrs[WL1251_NL_ATTR_IFNAME]));
-
- NLA_PUT_U32(msg, WL1251_NL_ATTR_REG_VAL, *reg_value);
-
- ret = genlmsg_end(msg, hdr);
- if (ret < 0) {
- wl1251_error("%s() failed", __func__);
- goto nla_put_failure;
- }
-
- kfree(reg_value);
-
- return genlmsg_reply(msg, info);
-
- nla_put_failure:
- nlmsg_free(msg);
- kfree(reg_value);
-
- return ret;
-}
-
-static int wl1251_nl_nvs_push(struct sk_buff *skb, struct genl_info *info)
-{
- struct wl1251 *wl;
- int ret = 0;
-
- if (!info->attrs[WL1251_NL_ATTR_NVS_BUFFER])
- return -EINVAL;
-
- if (!info->attrs[WL1251_NL_ATTR_NVS_LEN])
- return -EINVAL;
-
- wl = ifname_to_wl1251(&init_net, info);
- if (wl == NULL) {
- wl1251_error("wl1251 not found");
- return -EINVAL;
- }
-
- mutex_lock(&wl->mutex);
- wl->nvs_len = nla_get_u32(info->attrs[WL1251_NL_ATTR_NVS_LEN]);
- if (wl->nvs_len % 4) {
- wl1251_error("NVS size is not multiple of 32: %d", wl->nvs_len);
- ret = -EILSEQ;
- goto out;
- }
-
- /* If we already have an NVS, we should free it */
- kfree(wl->nvs);
-
- wl->nvs = kzalloc(wl->nvs_len, GFP_KERNEL);
- if (wl->nvs == NULL) {
- wl1251_error("Can't allocate NVS");
- ret = -ENOMEM;
- goto out;
- }
-
- memcpy(wl->nvs,
- nla_data(info->attrs[WL1251_NL_ATTR_NVS_BUFFER]),
- wl->nvs_len);
-
- wl1251_debug(DEBUG_NETLINK, "got NVS from userspace, %d bytes",
- wl->nvs_len);
-
-out:
- mutex_unlock(&wl->mutex);
-
- return ret;
-}
-
-static int wl1251_nl_reg_read(struct sk_buff *skb, struct genl_info *info)
-{
- struct wl1251 *wl;
- u32 addr, val;
- int ret = 0;
- struct sk_buff *msg;
- void *hdr;
-
- if (!info->attrs[WL1251_NL_ATTR_REG_ADDR])
- return -EINVAL;
-
- msg = nlmsg_new(NLMSG_GOODSIZE, GFP_KERNEL);
- if (!msg)
- return -ENOMEM;
-
- wl = ifname_to_wl1251(&init_net, info);
- if (wl == NULL) {
- wl1251_error("wl1251 not found");
- return -EINVAL;
- }
-
- addr = nla_get_u32(info->attrs[WL1251_NL_ATTR_REG_ADDR]);
-
- mutex_lock(&wl->mutex);
- val = wl1251_reg_read32(wl, addr);
- mutex_unlock(&wl->mutex);
-
- hdr = genlmsg_put(msg, info->snd_pid, info->snd_seq,
- &wl1251_nl_family, 0, WL1251_NL_CMD_PHY_REG_READ);
- if (IS_ERR(hdr)) {
- ret = PTR_ERR(hdr);
- goto nla_put_failure;
- }
-
- NLA_PUT_STRING(msg, WL1251_NL_ATTR_IFNAME,
- nla_data(info->attrs[WL1251_NL_ATTR_IFNAME]));
-
- NLA_PUT_U32(msg, WL1251_NL_ATTR_REG_VAL, val);
-
- ret = genlmsg_end(msg, hdr);
- if (ret < 0) {
- wl1251_error("%s() failed", __func__);
- goto nla_put_failure;
- }
-
- return genlmsg_reply(msg, info);
-
- nla_put_failure:
- nlmsg_free(msg);
-
- return ret;
-}
-
-static int wl1251_nl_reg_write(struct sk_buff *skb, struct genl_info *info)
-{
- struct wl1251 *wl;
- u32 addr, val;
-
- if (!info->attrs[WL1251_NL_ATTR_REG_ADDR])
- return -EINVAL;
-
- if (!info->attrs[WL1251_NL_ATTR_REG_VAL])
- return -EINVAL;
-
- wl = ifname_to_wl1251(&init_net, info);
- if (wl == NULL) {
- wl1251_error("wl1251 not found");
- return -EINVAL;
- }
-
- addr = nla_get_u32(info->attrs[WL1251_NL_ATTR_REG_ADDR]);
- val = nla_get_u32(info->attrs[WL1251_NL_ATTR_REG_VAL]);
-
- mutex_lock(&wl->mutex);
- wl1251_reg_write32(wl, addr, val);
- mutex_unlock(&wl->mutex);
-
- return 0;
-}
-
-static int wl1251_nl_set_plt_mode(struct sk_buff *skb, struct genl_info *info)
-{
- struct wl1251 *wl;
- u32 val;
- int ret;
-
- if (!info->attrs[WL1251_NL_ATTR_PLT_MODE])
- return -EINVAL;
-
- wl = ifname_to_wl1251(&init_net, info);
- if (wl == NULL) {
- wl1251_error("wl1251 not found");
- return -EINVAL;
- }
-
- val = nla_get_u32(info->attrs[WL1251_NL_ATTR_PLT_MODE]);
-
- switch (val) {
- case 0:
- ret = wl1251_plt_stop(wl);
- break;
- case 1:
- ret = wl1251_plt_start(wl);
- break;
- default:
- ret = -EINVAL;
- break;
- }
-
- return ret;
-}
-
-static struct nla_policy wl1251_nl_policy[WL1251_NL_ATTR_MAX + 1] = {
- [WL1251_NL_ATTR_IFNAME] = { .type = NLA_NUL_STRING,
- .len = IFNAMSIZ-1 },
- [WL1251_NL_ATTR_CMD_TEST_PARAM] = { .type = NLA_BINARY,
- .len = WL1251_MAX_TEST_LENGTH },
- [WL1251_NL_ATTR_CMD_TEST_ANSWER] = { .type = NLA_U8 },
- [WL1251_NL_ATTR_CMD_IE] = { .type = NLA_U32 },
- [WL1251_NL_ATTR_CMD_IE_LEN] = { .type = NLA_U32 },
- [WL1251_NL_ATTR_CMD_IE_BUFFER] = { .type = NLA_BINARY,
- .len = WL1251_MAX_TEST_LENGTH },
- [WL1251_NL_ATTR_CMD_IE_ANSWER] = { .type = NLA_BINARY,
- .len = WL1251_MAX_TEST_LENGTH },
- [WL1251_NL_ATTR_REG_ADDR] = { .type = NLA_U32 },
- [WL1251_NL_ATTR_REG_VAL] = { .type = NLA_U32 },
- [WL1251_NL_ATTR_NVS_BUFFER] = { .type = NLA_BINARY,
- .len = WL1251_MAX_NVS_LENGTH },
- [WL1251_NL_ATTR_NVS_LEN] = { .type = NLA_U32 },
- [WL1251_NL_ATTR_PLT_MODE] = { .type = NLA_U32 },
-};
-
-static struct genl_ops wl1251_nl_ops[] = {
- {
- .cmd = WL1251_NL_CMD_TEST,
- .doit = wl1251_nl_test_cmd,
- .policy = wl1251_nl_policy,
- .flags = GENL_ADMIN_PERM,
- },
- {
- .cmd = WL1251_NL_CMD_INTERROGATE,
- .doit = wl1251_nl_interrogate,
- .policy = wl1251_nl_policy,
- .flags = GENL_ADMIN_PERM,
- },
- {
- .cmd = WL1251_NL_CMD_CONFIGURE,
- .doit = wl1251_nl_configure,
- .policy = wl1251_nl_policy,
- .flags = GENL_ADMIN_PERM,
- },
- {
- .cmd = WL1251_NL_CMD_PHY_REG_READ,
- .doit = wl1251_nl_phy_reg_read,
- .policy = wl1251_nl_policy,
- .flags = GENL_ADMIN_PERM,
- },
- {
- .cmd = WL1251_NL_CMD_NVS_PUSH,
- .doit = wl1251_nl_nvs_push,
- .policy = wl1251_nl_policy,
- .flags = GENL_ADMIN_PERM,
- },
- {
- .cmd = WL1251_NL_CMD_REG_WRITE,
- .doit = wl1251_nl_reg_write,
- .policy = wl1251_nl_policy,
- .flags = GENL_ADMIN_PERM,
- },
- {
- .cmd = WL1251_NL_CMD_REG_READ,
- .doit = wl1251_nl_reg_read,
- .policy = wl1251_nl_policy,
- .flags = GENL_ADMIN_PERM,
- },
- {
- .cmd = WL1251_NL_CMD_SET_PLT_MODE,
- .doit = wl1251_nl_set_plt_mode,
- .policy = wl1251_nl_policy,
- .flags = GENL_ADMIN_PERM,
- },
-};
-
-int wl1251_nl_register(void)
-{
- int err, i;
-
- err = genl_register_family(&wl1251_nl_family);
- if (err)
- return err;
-
- for (i = 0; i < ARRAY_SIZE(wl1251_nl_ops); i++) {
- err = genl_register_ops(&wl1251_nl_family, &wl1251_nl_ops[i]);
- if (err)
- goto err_out;
- }
- return 0;
- err_out:
- genl_unregister_family(&wl1251_nl_family);
- return err;
-}
-
-void wl1251_nl_unregister(void)
-{
- genl_unregister_family(&wl1251_nl_family);
-}
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