288 lines
9.8 KiB
C
288 lines
9.8 KiB
C
/*
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* This file is part of the MicroPython project, http://micropython.org/
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*
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* The MIT License (MIT)
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*
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* Copyright (c) 2018 "Eric Poulsen" <eric@zyxod.com>
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*
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* Based on the ESP IDF example code which is Public Domain / CC0
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*
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* Permission is hereby granted, free of charge, to any person obtaining a copy
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* of this software and associated documentation files (the "Software"), to deal
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* in the Software without restriction, including without limitation the rights
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* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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* copies of the Software, and to permit persons to whom the Software is
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* furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice shall be included in
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* all copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
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* THE SOFTWARE.
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*/
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#if !MICROPY_ESP_IDF_4
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#include "py/runtime.h"
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#include "py/mphal.h"
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#include "py/objtype.h"
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#include "py/stream.h"
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#include "netutils.h"
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#include "modmachine.h"
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#include "netif/ppp/ppp.h"
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#include "netif/ppp/pppos.h"
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#include "lwip/err.h"
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#include "lwip/sockets.h"
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#include "lwip/sys.h"
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#include "lwip/netdb.h"
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#include "lwip/dns.h"
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#include "netif/ppp/pppapi.h"
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#define PPP_CLOSE_TIMEOUT_MS (4000)
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typedef struct _ppp_if_obj_t {
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mp_obj_base_t base;
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bool active;
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bool connected;
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volatile bool clean_close;
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ppp_pcb *pcb;
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mp_obj_t stream;
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SemaphoreHandle_t inactiveWaitSem;
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volatile TaskHandle_t client_task_handle;
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struct netif pppif;
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} ppp_if_obj_t;
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const mp_obj_type_t ppp_if_type;
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static void ppp_status_cb(ppp_pcb *pcb, int err_code, void *ctx) {
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ppp_if_obj_t *self = ctx;
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struct netif *pppif = ppp_netif(self->pcb);
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switch (err_code) {
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case PPPERR_NONE:
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self->connected = (pppif->ip_addr.u_addr.ip4.addr != 0);
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break;
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case PPPERR_USER:
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self->clean_close = true;
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break;
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case PPPERR_CONNECT:
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self->connected = false;
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break;
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default:
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break;
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}
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}
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STATIC mp_obj_t ppp_make_new(mp_obj_t stream) {
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mp_get_stream_raise(stream, MP_STREAM_OP_READ | MP_STREAM_OP_WRITE);
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ppp_if_obj_t *self = m_new_obj_with_finaliser(ppp_if_obj_t);
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self->base.type = &ppp_if_type;
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self->stream = stream;
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self->active = false;
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self->connected = false;
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self->clean_close = false;
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self->client_task_handle = NULL;
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return MP_OBJ_FROM_PTR(self);
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}
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MP_DEFINE_CONST_FUN_OBJ_1(ppp_make_new_obj, ppp_make_new);
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static u32_t ppp_output_callback(ppp_pcb *pcb, u8_t *data, u32_t len, void *ctx) {
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ppp_if_obj_t *self = ctx;
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int err;
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return mp_stream_rw(self->stream, data, len, &err, MP_STREAM_RW_WRITE);
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}
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static void pppos_client_task(void *self_in) {
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ppp_if_obj_t *self = (ppp_if_obj_t *)self_in;
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uint8_t buf[256];
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while (ulTaskNotifyTake(pdTRUE, 0) == 0) {
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int err;
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int len = mp_stream_rw(self->stream, buf, sizeof(buf), &err, 0);
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if (len > 0) {
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pppos_input_tcpip(self->pcb, (u8_t *)buf, len);
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}
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}
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self->client_task_handle = NULL;
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vTaskDelete(NULL);
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}
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STATIC mp_obj_t ppp_active(size_t n_args, const mp_obj_t *args) {
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ppp_if_obj_t *self = MP_OBJ_TO_PTR(args[0]);
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if (n_args > 1) {
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if (mp_obj_is_true(args[1])) {
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if (self->active) {
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return mp_const_true;
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}
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self->pcb = pppapi_pppos_create(&self->pppif, ppp_output_callback, ppp_status_cb, self);
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if (self->pcb == NULL) {
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mp_raise_msg(&mp_type_RuntimeError, "init failed");
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}
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self->active = true;
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} else {
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if (!self->active) {
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return mp_const_false;
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}
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if (self->client_task_handle != NULL) { // is connecting or connected?
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// Wait for PPPERR_USER, with timeout
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pppapi_close(self->pcb, 0);
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uint32_t t0 = mp_hal_ticks_ms();
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while (!self->clean_close && mp_hal_ticks_ms() - t0 < PPP_CLOSE_TIMEOUT_MS) {
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mp_hal_delay_ms(10);
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}
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// Shutdown task
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xTaskNotifyGive(self->client_task_handle);
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t0 = mp_hal_ticks_ms();
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while (self->client_task_handle != NULL && mp_hal_ticks_ms() - t0 < PPP_CLOSE_TIMEOUT_MS) {
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mp_hal_delay_ms(10);
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}
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}
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// Release PPP
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pppapi_free(self->pcb);
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self->pcb = NULL;
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self->active = false;
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self->connected = false;
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self->clean_close = false;
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}
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}
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return mp_obj_new_bool(self->active);
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}
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STATIC MP_DEFINE_CONST_FUN_OBJ_VAR_BETWEEN(ppp_active_obj, 1, 2, ppp_active);
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STATIC mp_obj_t ppp_connect_py(size_t n_args, const mp_obj_t *args, mp_map_t *kw_args) {
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enum { ARG_authmode, ARG_username, ARG_password };
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static const mp_arg_t allowed_args[] = {
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{ MP_QSTR_authmode, MP_ARG_KW_ONLY | MP_ARG_INT, {.u_int = PPPAUTHTYPE_NONE} },
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{ MP_QSTR_username, MP_ARG_KW_ONLY | MP_ARG_OBJ, {.u_rom_obj = MP_ROM_NONE} },
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{ MP_QSTR_password, MP_ARG_KW_ONLY | MP_ARG_OBJ, {.u_rom_obj = MP_ROM_NONE} },
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};
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mp_arg_val_t parsed_args[MP_ARRAY_SIZE(allowed_args)];
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mp_arg_parse_all(n_args - 1, args + 1, kw_args, MP_ARRAY_SIZE(allowed_args), allowed_args, parsed_args);
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ppp_if_obj_t *self = MP_OBJ_TO_PTR(args[0]);
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if (!self->active) {
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mp_raise_msg(&mp_type_OSError, "must be active");
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}
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if (self->client_task_handle != NULL) {
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mp_raise_OSError(MP_EALREADY);
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}
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switch (parsed_args[ARG_authmode].u_int) {
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case PPPAUTHTYPE_NONE:
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case PPPAUTHTYPE_PAP:
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case PPPAUTHTYPE_CHAP:
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break;
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default:
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mp_raise_ValueError("invalid auth");
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}
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if (parsed_args[ARG_authmode].u_int != PPPAUTHTYPE_NONE) {
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const char *username_str = mp_obj_str_get_str(parsed_args[ARG_username].u_obj);
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const char *password_str = mp_obj_str_get_str(parsed_args[ARG_password].u_obj);
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pppapi_set_auth(self->pcb, parsed_args[ARG_authmode].u_int, username_str, password_str);
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}
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if (pppapi_set_default(self->pcb) != ESP_OK) {
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mp_raise_msg(&mp_type_OSError, "set default failed");
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}
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ppp_set_usepeerdns(self->pcb, true);
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if (pppapi_connect(self->pcb, 0) != ESP_OK) {
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mp_raise_msg(&mp_type_OSError, "connect failed");
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}
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if (xTaskCreatePinnedToCore(pppos_client_task, "ppp", 2048, self, 1, (TaskHandle_t *)&self->client_task_handle, MP_TASK_COREID) != pdPASS) {
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mp_raise_msg(&mp_type_RuntimeError, "failed to create worker task");
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}
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return mp_const_none;
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}
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MP_DEFINE_CONST_FUN_OBJ_KW(ppp_connect_obj, 1, ppp_connect_py);
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STATIC mp_obj_t ppp_delete(mp_obj_t self_in) {
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ppp_if_obj_t *self = MP_OBJ_TO_PTR(self_in);
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mp_obj_t args[] = {self, mp_const_false};
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ppp_active(2, args);
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return mp_const_none;
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}
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MP_DEFINE_CONST_FUN_OBJ_1(ppp_delete_obj, ppp_delete);
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STATIC mp_obj_t ppp_ifconfig(size_t n_args, const mp_obj_t *args) {
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ppp_if_obj_t *self = MP_OBJ_TO_PTR(args[0]);
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ip_addr_t dns;
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if (n_args == 1) {
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// get
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if (self->pcb != NULL) {
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dns = dns_getserver(0);
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struct netif *pppif = ppp_netif(self->pcb);
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mp_obj_t tuple[4] = {
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netutils_format_ipv4_addr((uint8_t *)&pppif->ip_addr, NETUTILS_BIG),
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netutils_format_ipv4_addr((uint8_t *)&pppif->gw, NETUTILS_BIG),
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netutils_format_ipv4_addr((uint8_t *)&pppif->netmask, NETUTILS_BIG),
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netutils_format_ipv4_addr((uint8_t *)&dns, NETUTILS_BIG),
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};
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return mp_obj_new_tuple(4, tuple);
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} else {
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mp_obj_t tuple[4] = { mp_const_none, mp_const_none, mp_const_none, mp_const_none };
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return mp_obj_new_tuple(4, tuple);
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}
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} else {
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mp_obj_t *items;
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mp_obj_get_array_fixed_n(args[1], 4, &items);
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netutils_parse_ipv4_addr(items[3], (uint8_t *)&dns.u_addr.ip4, NETUTILS_BIG);
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dns_setserver(0, &dns);
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return mp_const_none;
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}
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}
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MP_DEFINE_CONST_FUN_OBJ_VAR_BETWEEN(ppp_ifconfig_obj, 1, 2, ppp_ifconfig);
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STATIC mp_obj_t ppp_status(mp_obj_t self_in) {
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return mp_const_none;
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}
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STATIC MP_DEFINE_CONST_FUN_OBJ_1(ppp_status_obj, ppp_status);
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STATIC mp_obj_t ppp_isconnected(mp_obj_t self_in) {
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ppp_if_obj_t *self = MP_OBJ_TO_PTR(self_in);
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return mp_obj_new_bool(self->connected);
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}
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STATIC MP_DEFINE_CONST_FUN_OBJ_1(ppp_isconnected_obj, ppp_isconnected);
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STATIC const mp_rom_map_elem_t ppp_if_locals_dict_table[] = {
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{ MP_ROM_QSTR(MP_QSTR_active), MP_ROM_PTR(&ppp_active_obj) },
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{ MP_ROM_QSTR(MP_QSTR_connect), MP_ROM_PTR(&ppp_connect_obj) },
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{ MP_ROM_QSTR(MP_QSTR_isconnected), MP_ROM_PTR(&ppp_isconnected_obj) },
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{ MP_ROM_QSTR(MP_QSTR_status), MP_ROM_PTR(&ppp_status_obj) },
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{ MP_ROM_QSTR(MP_QSTR_ifconfig), MP_ROM_PTR(&ppp_ifconfig_obj) },
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{ MP_ROM_QSTR(MP_QSTR___del__), MP_ROM_PTR(&ppp_delete_obj) },
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{ MP_ROM_QSTR(MP_QSTR_AUTH_NONE), MP_ROM_INT(PPPAUTHTYPE_NONE) },
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{ MP_ROM_QSTR(MP_QSTR_AUTH_PAP), MP_ROM_INT(PPPAUTHTYPE_PAP) },
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{ MP_ROM_QSTR(MP_QSTR_AUTH_CHAP), MP_ROM_INT(PPPAUTHTYPE_CHAP) },
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};
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STATIC MP_DEFINE_CONST_DICT(ppp_if_locals_dict, ppp_if_locals_dict_table);
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const mp_obj_type_t ppp_if_type = {
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{ &mp_type_type },
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.name = MP_QSTR_PPP,
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.locals_dict = (mp_obj_dict_t *)&ppp_if_locals_dict,
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};
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#endif // !MICROPY_ESP_IDF_4
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