alex/esp-idf
alex/esp-idf
1
0
Fork 0
mirror of https://github.com/espressif/esp-idf.git synced 2024-10-05 20:47:46 -04:00
Code Issues Actions 2 Packages Projects Releases Wiki Activity

example: Add sniffer FCSFAIL filter

Browse Source 
Closes https://github.com/espressif/esp-idf/issues/6473
This commit is contained in:
xiehang 2021-02-03 17:10:10 +08:00 committed by bot
parent f86a6db1f2
commit 91e019ea97
2 changed files with 11 additions and 7 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

17
examples/wifi/simple_sniffer/main/cmd_sniffer.c
View File

@ -23,11 +23,12 @@
#define SNIFFER_DEFAULT_FILE_NAME "esp-sniffer"
#define SNIFFER_FILE_NAME_MAX_LEN CONFIG_SNIFFER_PCAP_FILE_NAME_MAX_LEN
#define SNIFFER_DEFAULT_CHANNEL (1)
#define SNIFFER_PAYLOAD_FCS_LEN (4)
#define SNIFFER_PROCESS_PACKET_TIMEOUT_MS (100)
#define SNIFFER_DEFAULT_CHANNEL (1)
#define SNIFFER_PAYLOAD_FCS_LEN (4)
#define SNIFFER_PROCESS_PACKET_TIMEOUT_MS (100)
#define SNIFFER_PROCESS_APPTRACE_TIMEOUT_US (100)
#define SNIFFER_APPTRACE_RETRY (10)
#define SNIFFER_APPTRACE_RETRY (10)
#define SNIFFER_RX_FCS_ERR (0X41)
static const char *SNIFFER_TAG = "cmd_sniffer";
#define SNIFFER_CHECK(a, str, goto_tag, ...) \
@ -82,10 +83,11 @@ static uint32_t hash_func(const char *str, uint32_t max_num)
static void create_wifi_filter_hashtable(void)
{
char *wifi_filter_keys[SNIFFER_WLAN_FILTER_MAX] = {"mgmt", "data", "ctrl", "misc", "mpdu", "ampdu"};
char *wifi_filter_keys[SNIFFER_WLAN_FILTER_MAX] = {"mgmt", "data", "ctrl", "misc", "mpdu", "ampdu", "fcsfail"};
uint32_t wifi_filter_values[SNIFFER_WLAN_FILTER_MAX] = {WIFI_PROMIS_FILTER_MASK_MGMT, WIFI_PROMIS_FILTER_MASK_DATA,
WIFI_PROMIS_FILTER_MASK_CTRL, WIFI_PROMIS_FILTER_MASK_MISC,
WIFI_PROMIS_FILTER_MASK_DATA_MPDU, WIFI_PROMIS_FILTER_MASK_DATA_AMPDU
WIFI_PROMIS_FILTER_MASK_DATA_MPDU, WIFI_PROMIS_FILTER_MASK_DATA_AMPDU,
WIFI_PROMIS_FILTER_MASK_FCSFAIL
};
for (int i = 0; i < SNIFFER_WLAN_FILTER_MAX; i++) {
uint32_t idx = hash_func(wifi_filter_keys[i], SNIFFER_WLAN_FILTER_MAX);
@ -126,6 +128,7 @@ static void wifi_sniffer_cb(void *recv_buf, wifi_promiscuous_pkt_type_t type)
packet_info.seconds = sniffer->rx_ctrl.timestamp / 1000000U;
packet_info.microseconds = sniffer->rx_ctrl.timestamp % 1000000U;
packet_info.length = sniffer->rx_ctrl.sig_len;
/* For now, the sniffer only dumps the length of the MISC type frame */
if (type != WIFI_PKT_MISC && !sniffer->rx_ctrl.rx_state) {
packet_info.length -= SNIFFER_PAYLOAD_FCS_LEN;
@ -378,7 +381,7 @@ void register_sniffer(void)
"name of the file storing the packets in pcap format");
sniffer_args.interface = arg_str0("i", "interface", "<wlan>",
"which interface to capture packet");
sniffer_args.filter = arg_strn("F", "filter", "<mgmt|data|ctrl|misc|mpdu|ampdu>", 0, 6, "filter parameters");
sniffer_args.filter = arg_strn("F", "filter", "<mgmt|data|ctrl|misc|mpdu|ampdu|fcsfail>", 0, 7, "filter parameters");
sniffer_args.channel = arg_int0("c", "channel", "<channel>", "communication channel to use");
sniffer_args.stop = arg_lit0(NULL, "stop", "stop running sniffer");
sniffer_args.end = arg_end(1);

1
examples/wifi/simple_sniffer/main/cmd_sniffer.h
View File

@ -31,6 +31,7 @@ typedef enum {
SNIFFER_WLAN_FILTER_MISC, /*!< MISC */
SNIFFER_WLAN_FILTER_MPDU, /*!< MPDU */
SNIFFER_WLAN_FILTER_AMPDU, /*!< AMPDU */
SNIFFER_WLAN_FILTER_FCSFAIL, /*!< When this bit is set, the hardware will receive packets for which frame check sequence failed */
SNIFFER_WLAN_FILTER_MAX
} sniffer_wlan_filter_t;