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30691ed2a1
micropython/extmod/network_cyw43.c
Damien George 30691ed2a1 drivers/cyw43: Make wifi join fail if interface is not active. 
Otherwise the Python network object continues to report that it is
attempting to connect.

Also make the return error code consistent with wifi scan.

Signed-off-by: Damien George <damien@micropython.org>
2021-08-31 13:00:11 +10:00

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/*
* This file is part of the MicroPython project, http://micropython.org/
*
* The MIT License (MIT)
*
* Copyright (c) 2018-2019 Damien P. George
*
* Permission is hereby granted, free of charge, to any person obtaining a copy
* of this software and associated documentation files (the "Software"), to deal
* in the Software without restriction, including without limitation the rights
* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
* copies of the Software, and to permit persons to whom the Software is
* furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in
* all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
* THE SOFTWARE.
*/
#include <stdio.h>
#include <string.h>
#include "py/runtime.h"
#include "py/objstr.h"
#include "py/mphal.h"
#if MICROPY_PY_NETWORK_CYW43
#include "lwip/netif.h"
#include "drivers/cyw43/cyw43.h"
#include "extmod/network_cyw43.h"
#include "modnetwork.h"
typedef struct _network_cyw43_obj_t {
mp_obj_base_t base;
cyw43_t *cyw;
int itf;
} network_cyw43_obj_t;
STATIC const network_cyw43_obj_t network_cyw43_wl0 = { { &mp_network_cyw43_type }, &cyw43_state, 0 };
STATIC const network_cyw43_obj_t network_cyw43_wl1 = { { &mp_network_cyw43_type }, &cyw43_state, 1 };
STATIC void network_cyw43_print(const mp_print_t *print, mp_obj_t self_in, mp_print_kind_t kind) {
network_cyw43_obj_t *self = MP_OBJ_TO_PTR(self_in);
struct netif *netif = &self->cyw->netif[self->itf];
int status = cyw43_tcpip_link_status(self->cyw, self->itf);
const char *status_str;
if (status == CYW43_LINK_DOWN) {
status_str = "down";
} else if (status == CYW43_LINK_JOIN || status == CYW43_LINK_NOIP) {
status_str = "join";
} else if (status == CYW43_LINK_UP) {
status_str = "up";
} else if (status == CYW43_LINK_NONET) {
status_str = "nonet";
} else if (status == CYW43_LINK_BADAUTH) {
status_str = "badauth";
} else {
status_str = "fail";
}
mp_printf(print, "<CYW43 %s %s %u.%u.%u.%u>",
self->itf == 0 ? "STA" : "AP",
status_str,
netif->ip_addr.addr & 0xff,
netif->ip_addr.addr >> 8 & 0xff,
netif->ip_addr.addr >> 16 & 0xff,
netif->ip_addr.addr >> 24
);
}
STATIC mp_obj_t network_cyw43_make_new(const mp_obj_type_t *type, size_t n_args, size_t n_kw, const mp_obj_t *args) {
mp_arg_check_num(n_args, n_kw, 0, 1, false);
if (n_args == 0 || mp_obj_get_int(args[0]) == 0) {
return MP_OBJ_FROM_PTR(&network_cyw43_wl0);
} else {
return MP_OBJ_FROM_PTR(&network_cyw43_wl1);
}
}
STATIC mp_obj_t network_cyw43_send_ethernet(mp_obj_t self_in, mp_obj_t buf_in) {
network_cyw43_obj_t *self = MP_OBJ_TO_PTR(self_in);
mp_buffer_info_t buf;
mp_get_buffer_raise(buf_in, &buf, MP_BUFFER_READ);
int ret = cyw43_send_ethernet(self->cyw, self->itf, buf.len, buf.buf, false);
if (ret) {
mp_raise_OSError(-ret);
}
return mp_const_none;
}
STATIC MP_DEFINE_CONST_FUN_OBJ_2(network_cyw43_send_ethernet_obj, network_cyw43_send_ethernet);
STATIC mp_obj_t network_cyw43_ioctl(mp_obj_t self_in, mp_obj_t cmd_in, mp_obj_t buf_in) {
network_cyw43_obj_t *self = MP_OBJ_TO_PTR(self_in);
mp_buffer_info_t buf;
mp_get_buffer_raise(buf_in, &buf, MP_BUFFER_READ | MP_BUFFER_WRITE);
cyw43_ioctl(self->cyw, mp_obj_get_int(cmd_in), buf.len, buf.buf, self->itf);
return mp_const_none;
}
STATIC MP_DEFINE_CONST_FUN_OBJ_3(network_cyw43_ioctl_obj, network_cyw43_ioctl);
/*******************************************************************************/
// network API
STATIC mp_obj_t network_cyw43_deinit(mp_obj_t self_in) {
network_cyw43_obj_t *self = MP_OBJ_TO_PTR(self_in);
cyw43_deinit(self->cyw);
return mp_const_none;
}
STATIC MP_DEFINE_CONST_FUN_OBJ_1(network_cyw43_deinit_obj, network_cyw43_deinit);
STATIC mp_obj_t network_cyw43_active(size_t n_args, const mp_obj_t *args) {
network_cyw43_obj_t *self = MP_OBJ_TO_PTR(args[0]);
if (n_args == 1) {
return mp_obj_new_bool(cyw43_tcpip_link_status(self->cyw, self->itf));
} else {
cyw43_wifi_set_up(self->cyw, self->itf, mp_obj_is_true(args[1]));
return mp_const_none;
}
}
STATIC MP_DEFINE_CONST_FUN_OBJ_VAR_BETWEEN(network_cyw43_active_obj, 1, 2, network_cyw43_active);
STATIC int network_cyw43_scan_cb(void *env, const cyw43_ev_scan_result_t *res) {
mp_obj_t list = MP_OBJ_FROM_PTR(env);
// Search for existing BSSID to remove duplicates
bool found = false;
size_t len;
mp_obj_t *items;
mp_obj_get_array(list, &len, &items);
for (size_t i = 0; i < len; ++i) {
mp_obj_tuple_t *t = MP_OBJ_TO_PTR(items[i]);
if (memcmp(res->bssid, ((mp_obj_str_t *)MP_OBJ_TO_PTR(t->items[1]))->data, sizeof(res->bssid)) == 0) {
if (res->rssi > MP_OBJ_SMALL_INT_VALUE(t->items[3])) {
t->items[3] = MP_OBJ_NEW_SMALL_INT(res->rssi);
}
t->items[5] = MP_OBJ_NEW_SMALL_INT(MP_OBJ_SMALL_INT_VALUE(t->items[5]) + 1);
found = true;
break;
}
}
// Add to list of results if wanted
if (!found) {
mp_obj_t tuple[6] = {
mp_obj_new_bytes(res->ssid, res->ssid_len),
mp_obj_new_bytes(res->bssid, sizeof(res->bssid)),
MP_OBJ_NEW_SMALL_INT(res->channel),
MP_OBJ_NEW_SMALL_INT(res->rssi),
MP_OBJ_NEW_SMALL_INT(res->auth_mode),
// mp_const_false, // hidden
MP_OBJ_NEW_SMALL_INT(1), // N
};
mp_obj_list_append(list, mp_obj_new_tuple(6, tuple));
}
return 0; // continue scan
}
STATIC mp_obj_t network_cyw43_scan(size_t n_args, const mp_obj_t *pos_args, mp_map_t *kw_args) {
enum { ARG_passive, ARG_essid, ARG_bssid };
static const mp_arg_t allowed_args[] = {
{ MP_QSTR_passive, MP_ARG_KW_ONLY | MP_ARG_BOOL, {.u_bool = false} },
{ MP_QSTR_essid, MP_ARG_KW_ONLY | MP_ARG_OBJ, {.u_rom_obj = MP_ROM_NONE} },
{ MP_QSTR_bssid, MP_ARG_KW_ONLY | MP_ARG_OBJ, {.u_rom_obj = MP_ROM_NONE} },
};
network_cyw43_obj_t *self = MP_OBJ_TO_PTR(pos_args[0]);
mp_arg_val_t args[MP_ARRAY_SIZE(allowed_args)];
mp_arg_parse_all(n_args - 1, pos_args + 1, kw_args, MP_ARRAY_SIZE(allowed_args), allowed_args, args);
cyw43_wifi_scan_options_t opts;
opts.scan_type = args[ARG_passive].u_bool ? 1 : 0;
if (args[ARG_essid].u_obj == mp_const_none) {
opts.ssid_len = 0;
} else {
mp_buffer_info_t ssid;
mp_get_buffer_raise(args[ARG_essid].u_obj, &ssid, MP_BUFFER_READ);
opts.ssid_len = MIN(ssid.len, sizeof(opts.ssid));
memcpy(opts.ssid, ssid.buf, opts.ssid_len);
}
if (args[ARG_bssid].u_obj == mp_const_none) {
memset(opts.bssid, 0xff, sizeof(opts.bssid));
} else {
mp_buffer_info_t bssid;
mp_get_buffer_raise(args[ARG_bssid].u_obj, &bssid, MP_BUFFER_READ);
memcpy(opts.bssid, bssid.buf, sizeof(opts.bssid));
}
mp_obj_t res = mp_obj_new_list(0, NULL);
int scan_res = cyw43_wifi_scan(self->cyw, &opts, MP_OBJ_TO_PTR(res), network_cyw43_scan_cb);
if (scan_res < 0) {
mp_raise_OSError(-scan_res);
}
// Wait for scan to finish, with a 10s timeout
uint32_t start = mp_hal_ticks_ms();
while (cyw43_wifi_scan_active(self->cyw) && mp_hal_ticks_ms() - start < 10000) {
MICROPY_EVENT_POLL_HOOK
}
return res;
}
STATIC MP_DEFINE_CONST_FUN_OBJ_KW(network_cyw43_scan_obj, 1, network_cyw43_scan);
STATIC mp_obj_t network_cyw43_connect(size_t n_args, const mp_obj_t *pos_args, mp_map_t *kw_args) {
enum { ARG_essid, ARG_key, ARG_auth, ARG_bssid, ARG_channel };
static const mp_arg_t allowed_args[] = {
{ MP_QSTR_essid, MP_ARG_REQUIRED | MP_ARG_OBJ, {.u_rom_obj = MP_ROM_NONE} },
{ MP_QSTR_key, MP_ARG_OBJ, {.u_rom_obj = MP_ROM_NONE} },
{ MP_QSTR_auth, MP_ARG_KW_ONLY | MP_ARG_INT, {.u_int = -1} },
{ MP_QSTR_bssid, MP_ARG_KW_ONLY | MP_ARG_OBJ, {.u_rom_obj = MP_ROM_NONE} },
{ MP_QSTR_channel, MP_ARG_KW_ONLY | MP_ARG_INT, {.u_int = -1} },
};
network_cyw43_obj_t *self = MP_OBJ_TO_PTR(pos_args[0]);
mp_arg_val_t args[MP_ARRAY_SIZE(allowed_args)];
mp_arg_parse_all(n_args - 1, pos_args + 1, kw_args, MP_ARRAY_SIZE(allowed_args), allowed_args, args);
mp_buffer_info_t ssid;
mp_get_buffer_raise(args[ARG_essid].u_obj, &ssid, MP_BUFFER_READ);
mp_buffer_info_t key;
key.buf = NULL;
if (args[ARG_key].u_obj != mp_const_none) {
mp_get_buffer_raise(args[ARG_key].u_obj, &key, MP_BUFFER_READ);
}
mp_buffer_info_t bssid;
bssid.buf = NULL;
if (args[ARG_bssid].u_obj != mp_const_none) {
mp_get_buffer_raise(args[ARG_bssid].u_obj, &bssid, MP_BUFFER_READ);
if (bssid.len != 6) {
mp_raise_ValueError(NULL);
}
}
int ret = cyw43_wifi_join(self->cyw, ssid.len, ssid.buf, key.len, key.buf, args[ARG_auth].u_int, bssid.buf, args[ARG_channel].u_int);
if (ret != 0) {
mp_raise_OSError(-ret);
}
return mp_const_none;
}
STATIC MP_DEFINE_CONST_FUN_OBJ_KW(network_cyw43_connect_obj, 1, network_cyw43_connect);
STATIC mp_obj_t network_cyw43_disconnect(mp_obj_t self_in) {
network_cyw43_obj_t *self = MP_OBJ_TO_PTR(self_in);
cyw43_wifi_leave(self->cyw, self->itf);
return mp_const_none;
}
STATIC MP_DEFINE_CONST_FUN_OBJ_1(network_cyw43_disconnect_obj, network_cyw43_disconnect);
STATIC mp_obj_t network_cyw43_isconnected(mp_obj_t self_in) {
network_cyw43_obj_t *self = MP_OBJ_TO_PTR(self_in);
return mp_obj_new_bool(cyw43_tcpip_link_status(self->cyw, self->itf) == 3);
}
STATIC MP_DEFINE_CONST_FUN_OBJ_1(network_cyw43_isconnected_obj, network_cyw43_isconnected);
STATIC mp_obj_t network_cyw43_ifconfig(size_t n_args, const mp_obj_t *args) {
network_cyw43_obj_t *self = MP_OBJ_TO_PTR(args[0]);
return mod_network_nic_ifconfig(&self->cyw->netif[self->itf], n_args - 1, args + 1);
}
MP_DEFINE_CONST_FUN_OBJ_VAR_BETWEEN(network_cyw43_ifconfig_obj, 1, 2, network_cyw43_ifconfig);
STATIC mp_obj_t network_cyw43_status(size_t n_args, const mp_obj_t *args) {
network_cyw43_obj_t *self = MP_OBJ_TO_PTR(args[0]);
(void)self;
if (n_args == 1) {
// no arguments: return link status
return MP_OBJ_NEW_SMALL_INT(cyw43_tcpip_link_status(self->cyw, self->itf));
}
// one argument: return status based on query parameter
switch (mp_obj_str_get_qstr(args[1])) {
case MP_QSTR_stations: {
// return list of connected stations
if (self->itf != CYW43_ITF_AP) {
mp_raise_ValueError(MP_ERROR_TEXT("AP required"));
}
int num_stas;
uint8_t macs[32 * 6];
cyw43_wifi_ap_get_stas(self->cyw, &num_stas, macs);
mp_obj_t list = mp_obj_new_list(num_stas, NULL);
for (int i = 0; i < num_stas; ++i) {
mp_obj_t tuple[1] = {
mp_obj_new_bytes(&macs[i * 6], 6),
};
((mp_obj_list_t *)MP_OBJ_TO_PTR(list))->items[i] = mp_obj_new_tuple(1, tuple);
}
return list;
}
}
mp_raise_ValueError(MP_ERROR_TEXT("unknown status param"));
}
STATIC MP_DEFINE_CONST_FUN_OBJ_VAR_BETWEEN(network_cyw43_status_obj, 1, 2, network_cyw43_status);
static inline uint32_t nw_get_le32(const uint8_t *buf) {
return buf[0] | buf[1] << 8 | buf[2] << 16 | buf[3] << 24;
}
static inline void nw_put_le32(uint8_t *buf, uint32_t x) {
buf[0] = x;
buf[1] = x >> 8;
buf[2] = x >> 16;
buf[3] = x >> 24;
}
STATIC mp_obj_t network_cyw43_config(size_t n_args, const mp_obj_t *args, mp_map_t *kwargs) {
network_cyw43_obj_t *self = MP_OBJ_TO_PTR(args[0]);
if (kwargs->used == 0) {
// Get config value
if (n_args != 2) {
mp_raise_TypeError(MP_ERROR_TEXT("must query one param"));
}
switch (mp_obj_str_get_qstr(args[1])) {
case MP_QSTR_antenna: {
uint8_t buf[4];
cyw43_ioctl(self->cyw, CYW43_IOCTL_GET_ANTDIV, 4, buf, self->itf);
return MP_OBJ_NEW_SMALL_INT(nw_get_le32(buf));
}
case MP_QSTR_channel: {
uint8_t buf[4];
cyw43_ioctl(self->cyw, CYW43_IOCTL_GET_CHANNEL, 4, buf, self->itf);
return MP_OBJ_NEW_SMALL_INT(nw_get_le32(buf));
}
case MP_QSTR_essid: {
if (self->itf == CYW43_ITF_STA) {
uint8_t buf[36];
cyw43_ioctl(self->cyw, CYW43_IOCTL_GET_SSID, 36, buf, self->itf);
return mp_obj_new_str((const char *)buf + 4, nw_get_le32(buf));
} else {
size_t len;
const uint8_t *buf;
cyw43_wifi_ap_get_ssid(self->cyw, &len, &buf);
return mp_obj_new_str((const char *)buf, len);
}
}
case MP_QSTR_mac: {
uint8_t buf[6];
cyw43_wifi_get_mac(self->cyw, self->itf, buf);
return mp_obj_new_bytes(buf, 6);
}
case MP_QSTR_txpower: {
uint8_t buf[13];
memcpy(buf, "qtxpower\x00\x00\x00\x00\x00", 13);
cyw43_ioctl(self->cyw, CYW43_IOCTL_GET_VAR, 13, buf, self->itf);
return MP_OBJ_NEW_SMALL_INT(nw_get_le32(buf) / 4);
}
default:
mp_raise_ValueError(MP_ERROR_TEXT("unknown config param"));
}
} else {
// Set config value(s)
if (n_args != 1) {
mp_raise_TypeError(MP_ERROR_TEXT("can't specify pos and kw args"));
}
for (size_t i = 0; i < kwargs->alloc; ++i) {
if (MP_MAP_SLOT_IS_FILLED(kwargs, i)) {
mp_map_elem_t *e = &kwargs->table[i];
switch (mp_obj_str_get_qstr(e->key)) {
case MP_QSTR_antenna: {
uint8_t buf[4];
nw_put_le32(buf, mp_obj_get_int(e->value));
cyw43_ioctl(self->cyw, CYW43_IOCTL_SET_ANTDIV, 4, buf, self->itf);
break;
}
case MP_QSTR_channel: {
cyw43_wifi_ap_set_channel(self->cyw, mp_obj_get_int(e->value));
break;
}
case MP_QSTR_essid: {
size_t len;
const char *str = mp_obj_str_get_data(e->value, &len);
cyw43_wifi_ap_set_ssid(self->cyw, len, (const uint8_t *)str);
break;
}
case MP_QSTR_monitor: {
mp_int_t value = mp_obj_get_int(e->value);
uint8_t buf[9 + 4];
memcpy(buf, "allmulti\x00", 9);
nw_put_le32(buf + 9, value);
cyw43_ioctl(self->cyw, CYW43_IOCTL_SET_VAR, 9 + 4, buf, self->itf);
nw_put_le32(buf, value);
cyw43_ioctl(self->cyw, CYW43_IOCTL_SET_MONITOR, 4, buf, self->itf);
if (value) {
self->cyw->trace_flags |= CYW43_TRACE_MAC;
} else {
self->cyw->trace_flags &= ~CYW43_TRACE_MAC;
}
break;
}
case MP_QSTR_password: {
size_t len;
const char *str = mp_obj_str_get_data(e->value, &len);
cyw43_wifi_ap_set_password(self->cyw, len, (const uint8_t *)str);
break;
}
case MP_QSTR_pm: {
cyw43_wifi_pm(self->cyw, mp_obj_get_int(e->value));
break;
}
case MP_QSTR_trace: {
self->cyw->trace_flags = mp_obj_get_int(e->value);
break;
}
case MP_QSTR_txpower: {
mp_int_t dbm = mp_obj_get_int(e->value);
uint8_t buf[9 + 4];
memcpy(buf, "qtxpower\x00", 9);
nw_put_le32(buf + 9, dbm * 4);
cyw43_ioctl(self->cyw, CYW43_IOCTL_SET_VAR, 9 + 4, buf, self->itf);
break;
}
default:
mp_raise_ValueError(MP_ERROR_TEXT("unknown config param"));
}
}
}
return mp_const_none;
}
}
STATIC MP_DEFINE_CONST_FUN_OBJ_KW(network_cyw43_config_obj, 1, network_cyw43_config);
/*******************************************************************************/
// class bindings
STATIC const mp_rom_map_elem_t network_cyw43_locals_dict_table[] = {
{ MP_ROM_QSTR(MP_QSTR_send_ethernet), MP_ROM_PTR(&network_cyw43_send_ethernet_obj) },
{ MP_ROM_QSTR(MP_QSTR_ioctl), MP_ROM_PTR(&network_cyw43_ioctl_obj) },
{ MP_ROM_QSTR(MP_QSTR_deinit), MP_ROM_PTR(&network_cyw43_deinit_obj) },
{ MP_ROM_QSTR(MP_QSTR_active), MP_ROM_PTR(&network_cyw43_active_obj) },
{ MP_ROM_QSTR(MP_QSTR_scan), MP_ROM_PTR(&network_cyw43_scan_obj) },
{ MP_ROM_QSTR(MP_QSTR_connect), MP_ROM_PTR(&network_cyw43_connect_obj) },
{ MP_ROM_QSTR(MP_QSTR_disconnect), MP_ROM_PTR(&network_cyw43_disconnect_obj) },
{ MP_ROM_QSTR(MP_QSTR_isconnected), MP_ROM_PTR(&network_cyw43_isconnected_obj) },
{ MP_ROM_QSTR(MP_QSTR_ifconfig), MP_ROM_PTR(&network_cyw43_ifconfig_obj) },
{ MP_ROM_QSTR(MP_QSTR_status), MP_ROM_PTR(&network_cyw43_status_obj) },
{ MP_ROM_QSTR(MP_QSTR_config), MP_ROM_PTR(&network_cyw43_config_obj) },
};
STATIC MP_DEFINE_CONST_DICT(network_cyw43_locals_dict, network_cyw43_locals_dict_table);
const mp_obj_type_t mp_network_cyw43_type = {
{ &mp_type_type },
.name = MP_QSTR_CYW43,
.print = network_cyw43_print,
.make_new = network_cyw43_make_new,
.locals_dict = (mp_obj_dict_t *)&network_cyw43_locals_dict,
};
#endif // MICROPY_PY_NETWORK_CYW43
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