mirror of https://gitee.com/openkylin/linux.git
116 lines
3.1 KiB
C
116 lines
3.1 KiB
C
/*
|
|
* Copyright (c) 2014 Broadcom Corporation
|
|
*
|
|
* Permission to use, copy, modify, and/or distribute this software for any
|
|
* purpose with or without fee is hereby granted, provided that the above
|
|
* copyright notice and this permission notice appear in all copies.
|
|
*
|
|
* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
|
|
* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
|
|
* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY
|
|
* SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
|
|
* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION
|
|
* OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN
|
|
* CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
|
|
*/
|
|
|
|
#include <linux/vmalloc.h>
|
|
#include <net/cfg80211.h>
|
|
#include <net/netlink.h>
|
|
|
|
#include <brcmu_wifi.h>
|
|
#include "fwil_types.h"
|
|
#include "dhd.h"
|
|
#include "p2p.h"
|
|
#include "dhd_dbg.h"
|
|
#include "wl_cfg80211.h"
|
|
#include "vendor.h"
|
|
#include "fwil.h"
|
|
|
|
static int brcmf_cfg80211_vndr_cmds_dcmd_handler(struct wiphy *wiphy,
|
|
struct wireless_dev *wdev,
|
|
const void *data, int len)
|
|
{
|
|
struct brcmf_cfg80211_info *cfg = wiphy_to_cfg(wiphy);
|
|
struct net_device *ndev = cfg_to_ndev(cfg);
|
|
const struct brcmf_vndr_dcmd_hdr *cmdhdr = data;
|
|
struct sk_buff *reply;
|
|
int ret, payload, ret_len;
|
|
void *dcmd_buf = NULL, *wr_pointer;
|
|
u16 msglen, maxmsglen = PAGE_SIZE - 0x100;
|
|
|
|
brcmf_dbg(TRACE, "cmd %x set %d len %d\n", cmdhdr->cmd, cmdhdr->set,
|
|
cmdhdr->len);
|
|
|
|
len -= sizeof(struct brcmf_vndr_dcmd_hdr);
|
|
ret_len = cmdhdr->len;
|
|
if (ret_len > 0 || len > 0) {
|
|
if (len > BRCMF_DCMD_MAXLEN) {
|
|
brcmf_err("oversize input buffer %d\n", len);
|
|
len = BRCMF_DCMD_MAXLEN;
|
|
}
|
|
if (ret_len > BRCMF_DCMD_MAXLEN) {
|
|
brcmf_err("oversize return buffer %d\n", ret_len);
|
|
ret_len = BRCMF_DCMD_MAXLEN;
|
|
}
|
|
payload = max(ret_len, len) + 1;
|
|
dcmd_buf = vzalloc(payload);
|
|
if (NULL == dcmd_buf)
|
|
return -ENOMEM;
|
|
|
|
memcpy(dcmd_buf, (void *)cmdhdr + cmdhdr->offset, len);
|
|
*(char *)(dcmd_buf + len) = '\0';
|
|
}
|
|
|
|
if (cmdhdr->set)
|
|
ret = brcmf_fil_cmd_data_set(netdev_priv(ndev), cmdhdr->cmd,
|
|
dcmd_buf, ret_len);
|
|
else
|
|
ret = brcmf_fil_cmd_data_get(netdev_priv(ndev), cmdhdr->cmd,
|
|
dcmd_buf, ret_len);
|
|
if (ret != 0)
|
|
goto exit;
|
|
|
|
wr_pointer = dcmd_buf;
|
|
while (ret_len > 0) {
|
|
msglen = ret_len > maxmsglen ? maxmsglen : ret_len;
|
|
ret_len -= msglen;
|
|
payload = msglen + sizeof(msglen);
|
|
reply = cfg80211_vendor_cmd_alloc_reply_skb(wiphy, payload);
|
|
if (NULL == reply) {
|
|
ret = -ENOMEM;
|
|
break;
|
|
}
|
|
|
|
if (nla_put(reply, BRCMF_NLATTR_DATA, msglen, wr_pointer) ||
|
|
nla_put_u16(reply, BRCMF_NLATTR_LEN, msglen)) {
|
|
kfree_skb(reply);
|
|
ret = -ENOBUFS;
|
|
break;
|
|
}
|
|
|
|
ret = cfg80211_vendor_cmd_reply(reply);
|
|
if (ret)
|
|
break;
|
|
|
|
wr_pointer += msglen;
|
|
}
|
|
|
|
exit:
|
|
vfree(dcmd_buf);
|
|
|
|
return ret;
|
|
}
|
|
|
|
const struct wiphy_vendor_command brcmf_vendor_cmds[] = {
|
|
{
|
|
{
|
|
.vendor_id = BROADCOM_OUI,
|
|
.subcmd = BRCMF_VNDR_CMDS_DCMD
|
|
},
|
|
.flags = WIPHY_VENDOR_CMD_NEED_WDEV |
|
|
WIPHY_VENDOR_CMD_NEED_NETDEV,
|
|
.doit = brcmf_cfg80211_vndr_cmds_dcmd_handler
|
|
},
|
|
};
|