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mwifiex/mxm_wifiex/wlan_src/mlan/mlan_sta_rx.c
Sherry Sun 19732f578f mxm_wifiex: update to mxm6x17408 release 
Corresponding firmware version:
SDIO-UART W8987 Firmware version 16.92.21.p99
PCIE-UART W8997 Firmware version 16.92.21.p84.4
SDIO-UART W8997 Firmware version 16.92.21.p84.4
SDIO-UART IW416 Firmware version 16.92.21.p84.3
SDIO_UART IW612 Firmware version 18.99.2.p19.6
SDIO-UART W8801 Firmware version 14.92.36.p182
SDIO-UART W9098 Firmware version 17.92.1.p136.128
PCIE-UART W9098 Firmware version 17.92.1.p136.129

Signed-off-by: Sherry Sun <sherry.sun@nxp.com>
2023-07-15 14:41:14 +08:00

961 lines
30 KiB
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/** @file mlan_sta_rx.c
*
* @brief This file contains the handling of RX in MLAN
* module.
*
*
* Copyright 2008-2022 NXP
*
* This software file (the File) is distributed by NXP
* under the terms of the GNU General Public License Version 2, June 1991
* (the License). You may use, redistribute and/or modify the File in
* accordance with the terms and conditions of the License, a copy of which
* is available by writing to the Free Software Foundation, Inc.,
* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA or on the
* worldwide web at http://www.gnu.org/licenses/old-licenses/gpl-2.0.txt.
*
* THE FILE IS DISTRIBUTED AS-IS, WITHOUT WARRANTY OF ANY KIND, AND THE
* IMPLIED WARRANTIES OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE
* ARE EXPRESSLY DISCLAIMED. The License provides additional details about
* this warranty disclaimer.
*
*/
/********************************************************
Change log:
10/27/2008: initial version
********************************************************/
#include "mlan.h"
#include "mlan_join.h"
#include "mlan_util.h"
#include "mlan_fw.h"
#include "mlan_main.h"
#include "mlan_11n_aggr.h"
#include "mlan_11n_rxreorder.h"
#include "mlan_11ax.h"
/********************************************************
Local Variables
********************************************************/
/** IPv4 ARP request header */
typedef MLAN_PACK_START struct {
/** Hardware type */
t_u16 Htype;
/** Protocol type */
t_u16 Ptype;
/** Hardware address length */
t_u8 addr_len;
/** Protocol address length */
t_u8 proto_len;
/** Operation code */
t_u16 op_code;
/** Source mac address */
t_u8 src_mac[MLAN_MAC_ADDR_LENGTH];
/** Sender IP address */
t_u8 src_ip[4];
/** Destination mac address */
t_u8 dst_mac[MLAN_MAC_ADDR_LENGTH];
/** Destination IP address */
t_u8 dst_ip[4];
} MLAN_PACK_END IPv4_ARP_t;
/** IPv6 Nadv packet header */
typedef MLAN_PACK_START struct {
/** IP protocol version */
t_u8 version;
/** flow label */
t_u8 flow_lab[3];
/** Payload length */
t_u16 payload_len;
/** Next header type */
t_u8 next_hdr;
/** Hot limit */
t_u8 hop_limit;
/** Source address */
t_u8 src_addr[16];
/** Destination address */
t_u8 dst_addr[16];
/** ICMP type */
t_u8 icmp_type;
/** IPv6 Code */
t_u8 ipv6_code;
/** IPv6 Checksum */
t_u16 ipv6_checksum;
/** Flags */
t_u32 flags;
/** Target address */
t_u8 taget_addr[16];
/** Reserved */
t_u8 rev[8];
} MLAN_PACK_END IPv6_Nadv_t;
/********************************************************
Global functions
********************************************************/
/**
* @brief This function check and discard IPv4 and IPv6 gratuitous broadcast
* packets
*
* @param prx_pkt A pointer to RxPacketHdr_t structure of received packet
* @param pmadapter A pointer to pmlan_adapter structure
* @return TRUE if found such type of packets, FALSE not found
*/
static t_u8 discard_gratuitous_ARP_msg(RxPacketHdr_t *prx_pkt,
pmlan_adapter pmadapter)
{
t_u8 proto_ARP_type[] = {0x08, 0x06};
t_u8 proto_ARP_type_v6[] = {0x86, 0xDD};
IPv4_ARP_t *parp_hdr;
IPv6_Nadv_t *pNadv_hdr;
t_u8 ret = MFALSE;
/* IPV4 pkt check
* A gratuitous ARP is an ARP packet
* where the source and destination IP are both set to
* the IP of the machine issuing the packet.
*/
if (memcmp(pmadapter, proto_ARP_type, &prx_pkt->eth803_hdr.h803_len,
sizeof(proto_ARP_type)) == 0) {
parp_hdr = (IPv4_ARP_t *)(&prx_pkt->rfc1042_hdr);
/* Graguitous ARP can be ARP request or ARP reply*/
if ((parp_hdr->op_code == mlan_htons(0x01)) ||
(parp_hdr->op_code == mlan_htons(0x02)))
if (memcmp(pmadapter, parp_hdr->src_ip,
parp_hdr->dst_ip, 4) == 0)
ret = MTRUE;
}
/* IPV6 pkt check
* An unsolicited Neighbor Advertisement pkt is
* marked by a cleared Solicited Flag
*/
if (memcmp(pmadapter, proto_ARP_type_v6, &prx_pkt->eth803_hdr.h803_len,
sizeof(proto_ARP_type_v6)) == 0) {
pNadv_hdr = (IPv6_Nadv_t *)(&prx_pkt->rfc1042_hdr);
/* Check Nadv type: next header is ICMPv6 and
* icmp type is Nadv */
if (pNadv_hdr->next_hdr == 0x3A && pNadv_hdr->icmp_type == 0x88)
if ((pNadv_hdr->flags & mlan_htonl(0x40000000)) == 0)
ret = MTRUE;
}
return ret;
}
/**
* @brief This function process tdls action frame
*
* @param priv A pointer to mlan_private structure
* @param pbuf A pointer to tdls action frame buffer
* @param len len of tdls action frame buffer
* @return N/A
*/
void wlan_process_tdls_action_frame(pmlan_private priv, t_u8 *pbuf, t_u32 len)
{
sta_node *sta_ptr = MNULL;
IEEEtypes_VendorHeader_t *pvendor_ie = MNULL;
const t_u8 wmm_oui[] = {0x00, 0x50, 0xf2, 0x02};
t_u8 *peer;
t_u8 *pos, *end;
t_u8 action;
int ie_len = 0;
t_u8 i;
int rate_len;
IEEEtypes_Extension_t *ext_ie;
#define TDLS_PAYLOAD_TYPE 2
#define TDLS_CATEGORY 0x0c
#define TDLS_REQ_FIX_LEN 6
#define TDLS_RESP_FIX_LEN 8
#define TDLS_CONFIRM_FIX_LEN 6
if (len < (sizeof(EthII_Hdr_t) + 3))
return;
if (*(t_u8 *)(pbuf + sizeof(EthII_Hdr_t)) != TDLS_PAYLOAD_TYPE)
/*TDLS payload type = 2*/
return;
if (*(t_u8 *)(pbuf + sizeof(EthII_Hdr_t) + 1) != TDLS_CATEGORY)
/*TDLS category = 0xc */
return;
peer = pbuf + MLAN_MAC_ADDR_LENGTH;
action = *(t_u8 *)(pbuf + sizeof(EthII_Hdr_t) + 2);
/*2= payload type + category*/
if (action > TDLS_SETUP_CONFIRM) {
/*just handle TDLS setup request/response/confirm */
PRINTM(MMSG, "Recv TDLS Action: peer=" MACSTR ", action=%d\n",
MAC2STR(peer), action);
return;
}
sta_ptr = wlan_add_station_entry(priv, peer);
if (!sta_ptr)
return;
if (action == TDLS_SETUP_REQUEST) { /*setup request*/
sta_ptr->status = TDLS_NOT_SETUP;
PRINTM(MMSG, "Recv TDLS SETUP Request: peer=" MACSTR "\n",
MAC2STR(peer));
wlan_hold_tdls_packets(priv, peer);
if (len < (sizeof(EthII_Hdr_t) + TDLS_REQ_FIX_LEN))
return;
pos = pbuf + sizeof(EthII_Hdr_t) + 4;
/*payload 1+ category 1 + action 1 +dialog 1*/
sta_ptr->capability = mlan_ntohs(*(t_u16 *)pos);
ie_len = len - sizeof(EthII_Hdr_t) - TDLS_REQ_FIX_LEN;
pos += 2;
} else if (action == 1) { /*setup respons*/
PRINTM(MMSG, "Recv TDLS SETUP Response: peer=" MACSTR "\n",
MAC2STR(peer));
if (len < (sizeof(EthII_Hdr_t) + TDLS_RESP_FIX_LEN))
return;
pos = pbuf + sizeof(EthII_Hdr_t) + 6;
/*payload 1+ category 1 + action 1 +dialog 1 +status 2*/
sta_ptr->capability = mlan_ntohs(*(t_u16 *)pos);
ie_len = len - sizeof(EthII_Hdr_t) - TDLS_RESP_FIX_LEN;
pos += 2;
} else { /*setup confirm*/
PRINTM(MMSG, "Recv TDLS SETUP Confirm: peer=" MACSTR "\n",
MAC2STR(peer));
if (len < (sizeof(EthII_Hdr_t) + TDLS_CONFIRM_FIX_LEN))
return;
pos = pbuf + sizeof(EthII_Hdr_t) + TDLS_CONFIRM_FIX_LEN;
/*payload 1+ category 1 + action 1 +dialog 1 + status 2*/
ie_len = len - sizeof(EthII_Hdr_t) - TDLS_CONFIRM_FIX_LEN;
}
for (end = pos + ie_len; pos + 1 < end; pos += 2 + pos[1]) {
if (pos + 2 + pos[1] > end)
break;
switch (*pos) {
case SUPPORTED_RATES:
sta_ptr->rate_len =
MIN(pos[1], sizeof(sta_ptr->support_rate));
for (i = 0; i < sta_ptr->rate_len; i++)
sta_ptr->support_rate[i] = pos[2 + i];
break;
case EXTENDED_SUPPORTED_RATES:
rate_len = MIN(pos[1], sizeof(sta_ptr->support_rate) -
sta_ptr->rate_len);
for (i = 0; i < rate_len; i++)
sta_ptr->support_rate[sta_ptr->rate_len + i] =
pos[2 + i];
sta_ptr->rate_len += rate_len;
break;
case HT_CAPABILITY:
memcpy_ext(priv->adapter, (t_u8 *)&sta_ptr->HTcap, pos,
sizeof(IEEEtypes_HTCap_t),
sizeof(IEEEtypes_HTCap_t));
sta_ptr->is_11n_enabled = 1;
DBG_HEXDUMP(MDAT_D, "TDLS HT capability",
(t_u8 *)(&sta_ptr->HTcap),
MIN(sizeof(IEEEtypes_HTCap_t),
MAX_DATA_DUMP_LEN));
break;
case HT_OPERATION:
memcpy_ext(priv->adapter, &sta_ptr->HTInfo, pos,
sizeof(IEEEtypes_HTInfo_t),
sizeof(IEEEtypes_HTInfo_t));
DBG_HEXDUMP(MDAT_D, "TDLS HT info",
(t_u8 *)(&sta_ptr->HTInfo),
MIN(sizeof(IEEEtypes_HTInfo_t),
MAX_DATA_DUMP_LEN));
break;
case BSSCO_2040:
memcpy_ext(priv->adapter, (t_u8 *)&sta_ptr->BSSCO_20_40,
pos, sizeof(IEEEtypes_2040BSSCo_t),
sizeof(IEEEtypes_2040BSSCo_t));
break;
case EXT_CAPABILITY:
sta_ptr->ExtCap.ieee_hdr.len =
MIN(pos[1], sizeof(ExtCap_t));
memcpy_ext(priv->adapter, (t_u8 *)&sta_ptr->ExtCap, pos,
sta_ptr->ExtCap.ieee_hdr.len +
sizeof(IEEEtypes_Header_t),
sizeof(IEEEtypes_ExtCap_t));
DBG_HEXDUMP(MDAT_D, "TDLS Extended capability",
(t_u8 *)(&sta_ptr->ExtCap),
sta_ptr->ExtCap.ieee_hdr.len + 2);
break;
case RSN_IE:
sta_ptr->rsn_ie.ieee_hdr.len =
MIN(pos[1], IEEE_MAX_IE_SIZE -
sizeof(IEEEtypes_Header_t));
memcpy_ext(priv->adapter, (t_u8 *)&sta_ptr->rsn_ie, pos,
sta_ptr->rsn_ie.ieee_hdr.len +
sizeof(IEEEtypes_Header_t),
sizeof(IEEEtypes_Generic_t));
DBG_HEXDUMP(MDAT_D, "TDLS Rsn ie ",
(t_u8 *)(&sta_ptr->rsn_ie),
sta_ptr->rsn_ie.ieee_hdr.len +
sizeof(IEEEtypes_Header_t));
break;
case QOS_INFO:
sta_ptr->qos_info = pos[2];
sta_ptr->is_wmm_enabled = MTRUE;
PRINTM(MDAT_D, "TDLS qos info %x\n", sta_ptr->qos_info);
break;
case VENDOR_SPECIFIC_221:
pvendor_ie = (IEEEtypes_VendorHeader_t *)pos;
if (!memcmp(priv->adapter, pvendor_ie->oui, wmm_oui,
sizeof(wmm_oui))) {
sta_ptr->is_wmm_enabled = MTRUE;
sta_ptr->qos_info = pos[8]; /** qos info in wmm
parameters in
response and
confirm */
PRINTM(MDAT_D, "TDLS qos info %x\n",
sta_ptr->qos_info);
}
break;
case LINK_ID:
memcpy_ext(priv->adapter, (t_u8 *)&sta_ptr->link_ie,
pos, sizeof(IEEEtypes_LinkIDElement_t),
sizeof(IEEEtypes_LinkIDElement_t));
break;
case VHT_CAPABILITY:
memcpy_ext(priv->adapter, (t_u8 *)&sta_ptr->vht_cap,
pos, sizeof(IEEEtypes_VHTCap_t),
sizeof(IEEEtypes_VHTCap_t));
sta_ptr->is_11ac_enabled = 1;
DBG_HEXDUMP(MCMD_D, "Rx TDLS VHT capability",
(t_u8 *)(&sta_ptr->vht_cap),
MIN(sizeof(IEEEtypes_VHTCap_t),
MAX_DATA_DUMP_LEN));
break;
case VHT_OPERATION:
memcpy_ext(priv->adapter, (t_u8 *)&sta_ptr->vht_oprat,
pos, sizeof(IEEEtypes_VHTOprat_t),
sizeof(IEEEtypes_VHTOprat_t));
DBG_HEXDUMP(MCMD_D, "Rx TDLS VHT Operation",
(t_u8 *)(&sta_ptr->vht_oprat),
MIN(sizeof(IEEEtypes_VHTOprat_t),
MAX_DATA_DUMP_LEN));
break;
case AID_INFO:
memcpy_ext(priv->adapter, (t_u8 *)&sta_ptr->aid_info,
pos, sizeof(IEEEtypes_AID_t),
sizeof(IEEEtypes_AID_t));
DBG_HEXDUMP(MCMD_D, "Rx TDLS AID Info",
(t_u8 *)(&sta_ptr->aid_info),
MIN(sizeof(IEEEtypes_AID_t),
MAX_DATA_DUMP_LEN));
break;
case EXTENSION:
ext_ie = (IEEEtypes_Extension_t *)pos;
if (ext_ie->ext_id == HE_CAPABILITY) {
memcpy_ext(priv->adapter,
(t_u8 *)&sta_ptr->tdls_he_cap, pos,
ext_ie->ieee_hdr.len +
sizeof(IEEEtypes_Header_t),
sizeof(IEEEtypes_HECap_t));
sta_ptr->tdls_he_cap.ieee_hdr.len =
MIN(ext_ie->ieee_hdr.len,
sizeof(IEEEtypes_HECap_t) -
sizeof(IEEEtypes_Header_t));
sta_ptr->is_11ax_enabled = 1;
DBG_HEXDUMP(MCMD_D, "Rx TDLS HE Capability",
(t_u8 *)(&sta_ptr->tdls_he_cap),
MIN(sizeof(IEEEtypes_Header_t) +
sta_ptr->tdls_he_cap
.ieee_hdr.len,
sizeof(IEEEtypes_HECap_t)));
} else if (ext_ie->ext_id == HE_OPERATION) {
memcpy_ext(priv->adapter,
(t_u8 *)&sta_ptr->he_op, pos,
ext_ie->ieee_hdr.len +
sizeof(IEEEtypes_Header_t),
sizeof(IEEEtypes_HeOp_t));
ext_ie->ieee_hdr.len =
MIN(ext_ie->ieee_hdr.len,
sizeof(IEEEtypes_HeOp_t) -
sizeof(IEEEtypes_Header_t));
DBG_HEXDUMP(MCMD_D, "Rx TDLS HE Operation",
(t_u8 *)(&sta_ptr->he_op),
MIN(sizeof(IEEEtypes_Header_t) +
ext_ie->ieee_hdr.len,
MAX_DATA_DUMP_LEN));
}
break;
default:
break;
}
}
return;
}
/**
* @brief This function get pxpd info for radiotap info
*
* @param priv A pointer to pmlan_private
* @param prx_pd A pointer to RxPD
* @param prt_info A pointer to radiotap_info
*
* @return N/A
*/
void wlan_rxpdinfo_to_radiotapinfo(pmlan_private priv, RxPD *prx_pd,
radiotap_info *prt_info)
{
radiotap_info rt_info_tmp;
t_u8 rx_rate_info = 0;
t_u8 mcs_index = 0;
t_u8 format = 0;
t_u8 bw = 0;
t_u8 gi = 0;
t_u8 ldpc = 0;
t_u8 ext_rate_info = 0;
t_u8 nss = 0;
t_u8 dcm = 0;
memset(priv->adapter, &rt_info_tmp, 0x00, sizeof(rt_info_tmp));
rt_info_tmp.snr = prx_pd->snr;
rt_info_tmp.nf = prx_pd->nf;
rt_info_tmp.band_config = (prx_pd->rx_info & 0xf);
rt_info_tmp.chan_num = (prx_pd->rx_info & RXPD_CHAN_MASK) >> 5;
ext_rate_info = (t_u8)(prx_pd->rx_info >> 16);
rt_info_tmp.antenna = prx_pd->antenna;
rx_rate_info = prx_pd->rate_info;
if ((rx_rate_info & 0x3) == MLAN_RATE_FORMAT_HE) {
t_u8 gi_he = 0;
/* HE rate */
format = MLAN_RATE_FORMAT_HE;
mcs_index = MIN(prx_pd->rx_rate & 0xF, 0xb);
nss = ((prx_pd->rx_rate & 0xF0) >> 4);
nss = MIN(nss + 1, 2);
/* 20M: bw=0, 40M: bw=1, 80M: bw=2, 160M: bw=3 */
bw = (rx_rate_info & 0xC) >> 2;
gi = (rx_rate_info & 0x10) >> 4;
gi_he = (rx_rate_info & 0x80) >> 7;
gi = gi | gi_he;
dcm = (prx_pd->rx_info & RXPD_DCM_MASK) >> 16;
} else if ((rx_rate_info & 0x3) == MLAN_RATE_FORMAT_VHT) {
/* VHT rate */
format = MLAN_RATE_FORMAT_VHT;
mcs_index = MIN(prx_pd->rx_rate & 0xF, 9);
nss = ((prx_pd->rx_rate & 0xF0) >> 4);
nss = MIN(nss + 1, 2);
/* 20M: bw=0, 40M: bw=1, 80M: bw=2, 160M: bw=3 */
bw = (rx_rate_info & 0xC) >> 2;
/* LGI: gi =0, SGI: gi = 1 */
gi = (rx_rate_info & 0x10) >> 4;
} else if ((rx_rate_info & 0x3) == MLAN_RATE_FORMAT_HT) {
/* HT rate */
format = MLAN_RATE_FORMAT_HT;
mcs_index = prx_pd->rx_rate;
/* 20M: bw=0, 40M: bw=1 */
bw = (rx_rate_info & 0xC) >> 2;
/* LGI: gi =0, SGI: gi = 1 */
gi = (rx_rate_info & 0x10) >> 4;
} else {
/* LG rate */
format = MLAN_RATE_FORMAT_LG;
mcs_index = (prx_pd->rx_rate > MLAN_RATE_INDEX_OFDM0) ?
prx_pd->rx_rate - 1 :
prx_pd->rx_rate;
}
ldpc = rx_rate_info & 0x40;
rt_info_tmp.rate_info.mcs_index = mcs_index;
rt_info_tmp.rate_info.nss_index = nss;
rt_info_tmp.rate_info.dcm = dcm;
if (format == MLAN_RATE_FORMAT_HE) {
rt_info_tmp.rate_info.rate_info =
(ldpc << 5) | (format << 3) | (bw << 1) | (gi << 6);
} else
rt_info_tmp.rate_info.rate_info =
(ldpc << 5) | (format << 3) | (bw << 1) | gi;
rt_info_tmp.rate_info.bitrate =
wlan_index_to_data_rate(priv->adapter, prx_pd->rx_rate,
prx_pd->rate_info, ext_rate_info);
if (prx_pd->flags & RXPD_FLAG_EXTRA_HEADER)
memcpy_ext(priv->adapter, &rt_info_tmp.extra_info,
(t_u8 *)prx_pd + sizeof(*prx_pd),
sizeof(rt_info_tmp.extra_info),
sizeof(rt_info_tmp.extra_info));
memset(priv->adapter, prt_info, 0x00, sizeof(radiotap_info));
memcpy_ext(priv->adapter, prt_info, &rt_info_tmp, sizeof(rt_info_tmp),
sizeof(radiotap_info));
return;
}
/**
* @brief This function processes received packet and forwards it
* to kernel/upper layer
*
* @param pmadapter A pointer to mlan_adapter
* @param pmbuf A pointer to mlan_buffer which includes the received packet
*
* @return MLAN_STATUS_SUCCESS or MLAN_STATUS_FAILURE
*/
mlan_status wlan_process_rx_packet(pmlan_adapter pmadapter, pmlan_buffer pmbuf)
{
mlan_status ret = MLAN_STATUS_SUCCESS;
pmlan_private priv = pmadapter->priv[pmbuf->bss_index];
RxPacketHdr_t *prx_pkt;
RxPD *prx_pd;
int hdr_chop;
EthII_Hdr_t *peth_hdr;
t_u8 rfc1042_eth_hdr[MLAN_MAC_ADDR_LENGTH] = {0xaa, 0xaa, 0x03,
0x00, 0x00, 0x00};
t_u8 snap_oui_802_h[MLAN_MAC_ADDR_LENGTH] = {0xaa, 0xaa, 0x03,
0x00, 0x00, 0xf8};
t_u8 appletalk_aarp_type[2] = {0x80, 0xf3};
t_u8 ipx_snap_type[2] = {0x81, 0x37};
t_u8 tdls_action_type[2] = {0x89, 0x0d};
t_u8 ext_rate_info = 0;
ENTER();
prx_pd = (RxPD *)(pmbuf->pbuf + pmbuf->data_offset);
prx_pkt = (RxPacketHdr_t *)((t_u8 *)prx_pd + prx_pd->rx_pkt_offset);
/** Small debug type */
#define DBG_TYPE_SMALL 2
/** Size of debugging structure */
#define SIZE_OF_DBG_STRUCT 4
if (prx_pd->rx_pkt_type == PKT_TYPE_DEBUG) {
t_u8 dbg_type;
dbg_type = *(t_u8 *)&prx_pkt->eth803_hdr;
if (dbg_type == DBG_TYPE_SMALL) {
PRINTM(MFW_D, "\n");
DBG_HEXDUMP(MFW_D, "FWDBG",
(char *)((t_u8 *)&prx_pkt->eth803_hdr +
SIZE_OF_DBG_STRUCT),
prx_pd->rx_pkt_length);
PRINTM(MFW_D, "FWDBG::\n");
}
goto done;
}
PRINTM(MINFO,
"RX Data: data_len - prx_pd->rx_pkt_offset = %d - %d = %d\n",
pmbuf->data_len, prx_pd->rx_pkt_offset,
pmbuf->data_len - prx_pd->rx_pkt_offset);
HEXDUMP("RX Data: Dest", prx_pkt->eth803_hdr.dest_addr,
sizeof(prx_pkt->eth803_hdr.dest_addr));
HEXDUMP("RX Data: Src", prx_pkt->eth803_hdr.src_addr,
sizeof(prx_pkt->eth803_hdr.src_addr));
if ((memcmp(pmadapter, &prx_pkt->rfc1042_hdr, snap_oui_802_h,
sizeof(snap_oui_802_h)) == 0) ||
((memcmp(pmadapter, &prx_pkt->rfc1042_hdr, rfc1042_eth_hdr,
sizeof(rfc1042_eth_hdr)) == 0) &&
memcmp(pmadapter, &prx_pkt->rfc1042_hdr.snap_type,
appletalk_aarp_type, sizeof(appletalk_aarp_type)) &&
memcmp(pmadapter, &prx_pkt->rfc1042_hdr.snap_type, ipx_snap_type,
sizeof(ipx_snap_type)))) {
/*
* Replace the 803 header and rfc1042 header (llc/snap) with an
* EthernetII header, keep the src/dst and snap_type
* (ethertype). The firmware only passes up SNAP frames
* converting all RX Data from 802.11 to 802.2/LLC/SNAP frames.
* To create the Ethernet II, just move the src, dst address
* right before the snap_type.
*/
peth_hdr =
(EthII_Hdr_t *)((t_u8 *)&prx_pkt->eth803_hdr +
sizeof(prx_pkt->eth803_hdr) +
sizeof(prx_pkt->rfc1042_hdr) -
sizeof(prx_pkt->eth803_hdr.dest_addr) -
sizeof(prx_pkt->eth803_hdr.src_addr) -
sizeof(prx_pkt->rfc1042_hdr.snap_type));
memcpy_ext(pmadapter, peth_hdr->src_addr,
prx_pkt->eth803_hdr.src_addr,
sizeof(peth_hdr->src_addr),
sizeof(peth_hdr->src_addr));
memcpy_ext(pmadapter, peth_hdr->dest_addr,
prx_pkt->eth803_hdr.dest_addr,
sizeof(peth_hdr->dest_addr),
sizeof(peth_hdr->dest_addr));
/* Chop off the RxPD + the excess memory from the 802.2/llc/snap
* header that was removed.
*/
hdr_chop = (t_u32)((t_ptr)peth_hdr - (t_ptr)prx_pd);
} else {
HEXDUMP("RX Data: LLC/SNAP", (t_u8 *)&prx_pkt->rfc1042_hdr,
sizeof(prx_pkt->rfc1042_hdr));
if ((priv->hotspot_cfg & HOTSPOT_ENABLED) &&
discard_gratuitous_ARP_msg(prx_pkt, pmadapter)) {
ret = MLAN_STATUS_SUCCESS;
PRINTM(MDATA,
"Bypass sending Gratuitous ARP frame to Kernel.\n");
goto done;
}
if (!memcmp(pmadapter, &prx_pkt->eth803_hdr.h803_len,
tdls_action_type, sizeof(tdls_action_type))) {
wlan_process_tdls_action_frame(
priv, ((t_u8 *)prx_pd + prx_pd->rx_pkt_offset),
prx_pd->rx_pkt_length);
}
/* Chop off the RxPD */
hdr_chop = (t_u32)((t_ptr)&prx_pkt->eth803_hdr - (t_ptr)prx_pd);
}
/* Chop off the leading header bytes so the it points to the start of
* either the reconstructed EthII frame or the 802.2/llc/snap frame
*/
pmbuf->data_len -= hdr_chop;
pmbuf->data_offset += hdr_chop;
pmbuf->pparent = MNULL;
DBG_HEXDUMP(MDAT_D, "RxPD", (t_u8 *)prx_pd,
MIN(sizeof(RxPD), MAX_DATA_DUMP_LEN));
DBG_HEXDUMP(MDAT_D, "Rx Payload",
((t_u8 *)prx_pd + prx_pd->rx_pkt_offset),
MIN(prx_pd->rx_pkt_length, MAX_DATA_DUMP_LEN));
priv->rxpd_rate = prx_pd->rx_rate;
pmadapter->callbacks.moal_get_system_time(pmadapter->pmoal_handle,
&pmbuf->out_ts_sec,
&pmbuf->out_ts_usec);
PRINTM_NETINTF(MDATA, priv);
PRINTM(MDATA, "%lu.%06lu : Data => kernel seq_num=%d tid=%d\n",
pmbuf->out_ts_sec, pmbuf->out_ts_usec, prx_pd->seq_num,
prx_pd->priority);
if (pmadapter->enable_net_mon) {
if (prx_pd->rx_pkt_type == PKT_TYPE_802DOT11) {
pmbuf->flags |= MLAN_BUF_FLAG_NET_MONITOR;
goto mon_process;
}
}
mon_process:
if (pmbuf->flags & MLAN_BUF_FLAG_NET_MONITOR) {
// Use some rxpd space to save rxpd info for radiotap header
// We should insure radiotap_info is not bigger than RxPD
wlan_rxpdinfo_to_radiotapinfo(
priv, prx_pd,
(radiotap_info *)(pmbuf->pbuf + pmbuf->data_offset -
sizeof(radiotap_info)));
}
if (MFALSE || priv->rx_pkt_info) {
ext_rate_info = (t_u8)(prx_pd->rx_info >> 16);
pmbuf->u.rx_info.data_rate =
wlan_index_to_data_rate(priv->adapter, prx_pd->rx_rate,
prx_pd->rate_info,
ext_rate_info);
pmbuf->u.rx_info.channel =
(prx_pd->rx_info & RXPD_CHAN_MASK) >> 5;
pmbuf->u.rx_info.antenna = prx_pd->antenna;
pmbuf->u.rx_info.rssi = prx_pd->snr - prx_pd->nf;
}
ret = pmadapter->callbacks.moal_recv_packet(pmadapter->pmoal_handle,
pmbuf);
if (ret == MLAN_STATUS_FAILURE) {
pmbuf->status_code = MLAN_ERROR_PKT_INVALID;
PRINTM(MERROR,
"STA Rx Error: moal_recv_packet returned error\n");
}
done:
if (ret != MLAN_STATUS_PENDING)
pmadapter->ops.data_complete(pmadapter, pmbuf, ret);
#ifdef USB
else if (IS_USB(pmadapter->card_type))
pmadapter->callbacks.moal_recv_complete(pmadapter->pmoal_handle,
MNULL, MLAN_USB_EP_DATA,
MLAN_STATUS_SUCCESS);
#endif
LEAVE();
return ret;
}
/**
* @brief This function processes the received buffer
*
* @param adapter A pointer to mlan_adapter
* @param pmbuf A pointer to the received buffer
*
* @return MLAN_STATUS_SUCCESS or MLAN_STATUS_FAILURE
*/
mlan_status wlan_ops_sta_process_rx_packet(t_void *adapter, pmlan_buffer pmbuf)
{
pmlan_adapter pmadapter = (pmlan_adapter)adapter;
mlan_status ret = MLAN_STATUS_SUCCESS;
RxPD *prx_pd;
RxPacketHdr_t *prx_pkt;
RxPD *prx_pd2;
EthII_Hdr_t *peth_hdr2;
wlan_802_11_header *pwlan_hdr;
IEEEtypes_FrameCtl_t *frmctl;
pmlan_buffer pmbuf2 = MNULL;
mlan_802_11_mac_addr dest_addr = {0x00};
mlan_802_11_mac_addr src_addr = {0x00};
t_u16 hdr_len;
t_u8 snap_eth_hdr[5] = {0xaa, 0xaa, 0x03, 0x00, 0x00};
pmlan_private priv = pmadapter->priv[pmbuf->bss_index];
t_u8 ta[MLAN_MAC_ADDR_LENGTH];
t_u16 rx_pkt_type = 0;
wlan_mgmt_pkt *pmgmt_pkt_hdr = MNULL;
sta_node *sta_ptr = MNULL;
t_u16 adj_rx_rate = 0;
t_u8 antenna = 0;
ENTER();
prx_pd = (RxPD *)(pmbuf->pbuf + pmbuf->data_offset);
/* Endian conversion */
endian_convert_RxPD(prx_pd);
if (prx_pd->flags & RXPD_FLAG_EXTRA_HEADER) {
endian_convert_RxPD_extra_header(
(rxpd_extra_info *)((t_u8 *)prx_pd + sizeof(*prx_pd)));
}
if (priv->adapter->pcard_info->v14_fw_api) {
t_u8 rxpd_rate_info_orig = prx_pd->rate_info;
prx_pd->rate_info = wlan_convert_v14_rx_rate_info(
priv, rxpd_rate_info_orig);
PRINTM(MINFO,
"STA RX: v14_fw_api=%d rx_rate =%d rxpd_rate_info=0x%x->0x%x\n",
priv->adapter->pcard_info->v14_fw_api, prx_pd->rx_rate,
rxpd_rate_info_orig, prx_pd->rate_info);
}
rx_pkt_type = prx_pd->rx_pkt_type;
prx_pkt = (RxPacketHdr_t *)((t_u8 *)prx_pd + prx_pd->rx_pkt_offset);
if ((prx_pd->rx_pkt_offset + prx_pd->rx_pkt_length) !=
(t_u16)pmbuf->data_len) {
PRINTM(MERROR,
"Wrong rx packet: len=%d,rx_pkt_offset=%d,"
" rx_pkt_length=%d\n",
pmbuf->data_len, prx_pd->rx_pkt_offset,
prx_pd->rx_pkt_length);
pmbuf->status_code = MLAN_ERROR_PKT_SIZE_INVALID;
ret = MLAN_STATUS_FAILURE;
pmadapter->ops.data_complete(pmadapter, pmbuf, ret);
goto done;
}
pmbuf->data_len = prx_pd->rx_pkt_offset + prx_pd->rx_pkt_length;
if (pmadapter->priv[pmbuf->bss_index]->mgmt_frame_passthru_mask &&
prx_pd->rx_pkt_type == PKT_TYPE_MGMT_FRAME) {
/* Check if this is mgmt packet and needs to
* forwarded to app as an event
*/
pmgmt_pkt_hdr = (wlan_mgmt_pkt *)((t_u8 *)prx_pd +
prx_pd->rx_pkt_offset);
pmgmt_pkt_hdr->frm_len =
wlan_le16_to_cpu(pmgmt_pkt_hdr->frm_len);
if ((pmgmt_pkt_hdr->wlan_header.frm_ctl &
IEEE80211_FC_MGMT_FRAME_TYPE_MASK) == 0)
wlan_process_802dot11_mgmt_pkt(
pmadapter->priv[pmbuf->bss_index],
(t_u8 *)&pmgmt_pkt_hdr->wlan_header,
pmgmt_pkt_hdr->frm_len + sizeof(wlan_mgmt_pkt) -
sizeof(pmgmt_pkt_hdr->frm_len),
prx_pd);
pmadapter->ops.data_complete(pmadapter, pmbuf, ret);
goto done;
}
if (rx_pkt_type != PKT_TYPE_BAR) {
priv->rxpd_rate_info = prx_pd->rate_info;
priv->rxpd_rate = prx_pd->rx_rate;
priv->rxpd_rx_info = (t_u8)(prx_pd->rx_info >> 16);
if (priv->bss_type == MLAN_BSS_TYPE_STA) {
antenna = wlan_adjust_antenna(priv, prx_pd);
adj_rx_rate = wlan_adjust_data_rate(
priv, priv->rxpd_rate, priv->rxpd_rate_info);
pmadapter->callbacks.moal_hist_data_add(
pmadapter->pmoal_handle, pmbuf->bss_index,
adj_rx_rate, prx_pd->snr, prx_pd->nf, antenna);
}
}
if (pmadapter->enable_net_mon &&
(prx_pd->flags & RXPD_FLAG_UCAST_PKT)) {
pwlan_hdr = (wlan_802_11_header *)((t_u8 *)prx_pd +
prx_pd->rx_pkt_offset);
frmctl = (IEEEtypes_FrameCtl_t *)pwlan_hdr;
if (frmctl->type == 0x02) {
/* This is a valid unicast destined data packet, with
* 802.11 and rtap headers attached. Duplicate this
* packet and process this copy as a sniffed packet,
* meant for monitor iface
*/
pmbuf2 = wlan_alloc_mlan_buffer(pmadapter,
pmbuf->data_len,
MLAN_RX_HEADER_LEN,
MOAL_ALLOC_MLAN_BUFFER);
if (!pmbuf2) {
PRINTM(MERROR,
"Unable to allocate mlan_buffer for Rx");
PRINTM(MERROR, "sniffed packet\n");
} else {
pmbuf2->bss_index = pmbuf->bss_index;
pmbuf2->buf_type = pmbuf->buf_type;
pmbuf2->priority = pmbuf->priority;
pmbuf2->in_ts_sec = pmbuf->in_ts_sec;
pmbuf2->in_ts_usec = pmbuf->in_ts_usec;
pmbuf2->data_len = pmbuf->data_len;
memcpy(pmadapter,
pmbuf2->pbuf + pmbuf2->data_offset,
pmbuf->pbuf + pmbuf->data_offset,
pmbuf->data_len);
prx_pd2 = (RxPD *)(pmbuf2->pbuf +
pmbuf2->data_offset);
/* set pkt type of duplicated pkt to 802.11 */
prx_pd2->rx_pkt_type = PKT_TYPE_802DOT11;
wlan_process_rx_packet(pmadapter, pmbuf2);
}
/* Now, process this pkt as a normal data packet.
* rx_pkt_offset points to the 802.11 hdr. Construct
* 802.3 header from 802.11 hdr fields and attach it
* just before the payload.
*/
memcpy(pmadapter, (t_u8 *)&dest_addr, pwlan_hdr->addr1,
sizeof(pwlan_hdr->addr1));
memcpy(pmadapter, (t_u8 *)&src_addr, pwlan_hdr->addr2,
sizeof(pwlan_hdr->addr2));
hdr_len = sizeof(wlan_802_11_header);
/* subtract mac addr field size for 3 address mac80211
* header */
if (!(frmctl->from_ds && frmctl->to_ds))
hdr_len -= sizeof(mlan_802_11_mac_addr);
/* add 2 bytes of qos ctrl flags */
if (frmctl->sub_type & QOS_DATA)
hdr_len += 2;
if (prx_pd->rx_pkt_type == PKT_TYPE_AMSDU) {
/* no need to generate 802.3 hdr, update pkt
* offset */
prx_pd->rx_pkt_offset += hdr_len;
prx_pd->rx_pkt_length -= hdr_len;
} else {
/* skip 6-byte snap and 2-byte type */
if (memcmp(pmadapter,
(t_u8 *)pwlan_hdr + hdr_len,
snap_eth_hdr,
sizeof(snap_eth_hdr)) == 0)
hdr_len += 8;
peth_hdr2 =
(EthII_Hdr_t *)((t_u8 *)prx_pd +
prx_pd->rx_pkt_offset +
hdr_len -
sizeof(EthII_Hdr_t));
memcpy(pmadapter, peth_hdr2->dest_addr,
(t_u8 *)&dest_addr,
sizeof(peth_hdr2->dest_addr));
memcpy(pmadapter, peth_hdr2->src_addr,
(t_u8 *)&src_addr,
sizeof(peth_hdr2->src_addr));
/* Update the rx_pkt_offset to point the 802.3
* hdr */
prx_pd->rx_pkt_offset +=
(hdr_len - sizeof(EthII_Hdr_t));
prx_pd->rx_pkt_length -=
(hdr_len - sizeof(EthII_Hdr_t));
}
/* update the prx_pkt pointer */
prx_pkt = (RxPacketHdr_t *)((t_u8 *)prx_pd +
prx_pd->rx_pkt_offset);
} else {
pmbuf->status_code = MLAN_ERROR_PKT_SIZE_INVALID;
ret = MLAN_STATUS_FAILURE;
PRINTM(MERROR,
"Drop invalid unicast sniffer pkt, subType=0x%x, flag=0x%x, pkt_type=%d\n",
frmctl->sub_type, prx_pd->flags,
prx_pd->rx_pkt_type);
wlan_free_mlan_buffer(pmadapter, pmbuf);
goto done;
}
}
/*
* If the packet is not an unicast packet then send the packet
* directly to os. Don't pass thru rx reordering
*/
if ((!IS_11N_ENABLED(priv) &&
!(prx_pd->flags & RXPD_FLAG_PKT_DIRECT_LINK)) ||
memcmp(priv->adapter, priv->curr_addr,
prx_pkt->eth803_hdr.dest_addr, MLAN_MAC_ADDR_LENGTH)) {
priv->snr = prx_pd->snr;
priv->nf = prx_pd->nf;
wlan_process_rx_packet(pmadapter, pmbuf);
goto done;
}
if (queuing_ra_based(priv) ||
(prx_pd->flags & RXPD_FLAG_PKT_DIRECT_LINK)) {
memcpy_ext(pmadapter, ta, prx_pkt->eth803_hdr.src_addr,
MLAN_MAC_ADDR_LENGTH, MLAN_MAC_ADDR_LENGTH);
if (prx_pd->priority < MAX_NUM_TID) {
PRINTM(MDATA, "adhoc/tdls packet %p " MACSTR "\n",
pmbuf, MAC2STR(ta));
sta_ptr = wlan_get_station_entry(priv, ta);
if (sta_ptr) {
sta_ptr->rx_seq[prx_pd->priority] =
prx_pd->seq_num;
sta_ptr->snr = prx_pd->snr;
sta_ptr->nf = prx_pd->nf;
if (prx_pd->flags & RXPD_FLAG_PKT_DIRECT_LINK) {
pmadapter->callbacks
.moal_updata_peer_signal(
pmadapter->pmoal_handle,
pmbuf->bss_index, ta,
prx_pd->snr,
prx_pd->nf);
}
}
if (!sta_ptr || (!sta_ptr->is_11n_enabled &&
!sta_ptr->is_11ax_enabled)) {
wlan_process_rx_packet(pmadapter, pmbuf);
goto done;
}
}
} else {
priv->snr = prx_pd->snr;
priv->nf = prx_pd->nf;
if ((rx_pkt_type != PKT_TYPE_BAR) &&
(prx_pd->priority < MAX_NUM_TID))
priv->rx_seq[prx_pd->priority] = prx_pd->seq_num;
memcpy_ext(pmadapter, ta,
priv->curr_bss_params.bss_descriptor.mac_address,
MLAN_MAC_ADDR_LENGTH, MLAN_MAC_ADDR_LENGTH);
}
if ((priv->port_ctrl_mode == MTRUE && priv->port_open == MFALSE) &&
(rx_pkt_type != PKT_TYPE_BAR)) {
if (MLAN_STATUS_SUCCESS !=
mlan_11n_rxreorder_pkt(priv, prx_pd->seq_num,
prx_pd->priority, ta,
(t_u8)prx_pd->rx_pkt_type,
(t_void *)RX_PKT_DROPPED_IN_FW))
PRINTM(MINFO, "RX pkt reordering failure seq_num:%d\n",
prx_pd->seq_num);
if (rx_pkt_type == PKT_TYPE_AMSDU) {
pmbuf->data_len = prx_pd->rx_pkt_length;
pmbuf->data_offset += prx_pd->rx_pkt_offset;
wlan_11n_deaggregate_pkt(priv, pmbuf);
} else {
wlan_process_rx_packet(pmadapter, pmbuf);
}
goto done;
}
/* Reorder and send to OS */
ret = mlan_11n_rxreorder_pkt(priv, prx_pd->seq_num, prx_pd->priority,
ta, (t_u8)prx_pd->rx_pkt_type,
(void *)pmbuf);
if (ret || (rx_pkt_type == PKT_TYPE_BAR))
pmadapter->ops.data_complete(pmadapter, pmbuf, ret);
done:
LEAVE();
return ret;
}
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