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qcacmn: Add support for tx flags for packet capture mode

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Fill tx flags in radiotap header based on tx status for
tx packets capture in packet capture component.

Change-Id: I52da01a2c0677d32bfb05a1f3095a0e6df084fca
CRs-Fixed: 3132140
This commit is contained in:
Vulupala Shashank Reddy 2022-02-17 11:58:08 +05:30 • committed by Madan Koyyalamudi
commit 48de2db910
1 changed files with 57 additions and 0 deletions
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57
qdf/linux/src/qdf_nbuf.c
View file

@ -1,5 +1,6 @@
/*
* Copyright (c) 2014-2021 The Linux Foundation. All rights reserved.
* Copyright (c) 2022 Qualcomm Innovation Center, Inc. All rights reserved.
*
* Permission to use, copy, modify, and/or distribute this software for
* any purpose with or without fee is hereby granted, provided that the
@ -72,6 +73,10 @@
#define RADIOTAP_VHT_BW_80 4
#define RADIOTAP_VHT_BW_160 11
/* tx status */
#define RADIOTAP_TX_STATUS_FAIL 1
#define RADIOTAP_TX_STATUS_NOACK 2
/* channel number to freq conversion */
#define CHANNEL_NUM_14 14
#define CHANNEL_NUM_15 15
@ -4437,6 +4442,7 @@ qdf_nbuf_update_radiotap_he_mu_other_flags(struct mon_rx_status *rx_status,
* Number after '+' indicates maximum possible increase due to alignment
*/
#define RADIOTAP_TX_FLAGS_LEN (2 + 1)
#define RADIOTAP_VHT_FLAGS_LEN (12 + 1)
#define RADIOTAP_HE_FLAGS_LEN (12 + 1)
#define RADIOTAP_HE_MU_FLAGS_LEN (8 + 1)
@ -4455,6 +4461,7 @@ qdf_nbuf_update_radiotap_he_mu_other_flags(struct mon_rx_status *rx_status,
(sizeof(struct qdf_radiotap_ext2))
#define RADIOTAP_HEADER_LEN (sizeof(struct ieee80211_radiotap_header) + \
RADIOTAP_FIXED_HEADER_LEN + \
RADIOTAP_TX_FLAGS_LEN + \
RADIOTAP_HT_FLAGS_LEN + \
RADIOTAP_VHT_FLAGS_LEN + \
RADIOTAP_AMPDU_STATUS_LEN + \
@ -4512,6 +4519,41 @@ static unsigned int qdf_nbuf_update_radiotap_ampdu_flags(
(rx_status->rssi_comb + rx_status->chan_noise_floor)
#endif
/**
* qdf_nbuf_update_radiotap_tx_flags() - Update radiotap header tx flags
* @rx_status: Pointer to rx_status.
* @rtap_buf: Buf to which tx info has to be updated.
* @rtap_len: Current length of radiotap buffer
*
* Return: Length of radiotap after tx flags updated.
*/
static unsigned int qdf_nbuf_update_radiotap_tx_flags(
struct mon_rx_status *rx_status,
uint8_t *rtap_buf,
uint32_t rtap_len)
{
/*
* IEEE80211_RADIOTAP_TX_FLAGS u16
*/
uint16_t tx_flags = 0;
rtap_len = qdf_align(rtap_len, 2);
switch (rx_status->tx_status) {
case RADIOTAP_TX_STATUS_FAIL:
tx_flags |= IEEE80211_RADIOTAP_F_TX_FAIL;
break;
case RADIOTAP_TX_STATUS_NOACK:
tx_flags |= IEEE80211_RADIOTAP_F_TX_NOACK;
break;
}
put_unaligned_le16(tx_flags, &rtap_buf[rtap_len]);
rtap_len += 2;
return rtap_len;
}
/**
* qdf_nbuf_update_radiotap() - Update radiotap header from rx_status
* @rx_status: Pointer to rx_status.
@ -4605,6 +4647,21 @@ unsigned int qdf_nbuf_update_radiotap(struct mon_rx_status *rx_status,
return 0;
}
/* update tx flags for pkt capture*/
if (rx_status->add_rtap_ext) {
length = rtap_len;
rthdr->it_present |=
cpu_to_le32(1 << IEEE80211_RADIOTAP_TX_FLAGS);
rtap_len = qdf_nbuf_update_radiotap_tx_flags(rx_status,
rtap_buf,
rtap_len);
if ((rtap_len - length) > RADIOTAP_TX_FLAGS_LEN) {
qdf_print("length is greater than RADIOTAP_TX_FLAGS_LEN");
return 0;
}
}
if (rx_status->ht_flags) {
length = rtap_len;
/* IEEE80211_RADIOTAP_VHT u8, u8, u8 */