circuitpython/extmod/network_lwip.c

96 lines
3.5 KiB
C

/*
* This file is part of the MicroPython project, http://micropython.org/
*
* The MIT License (MIT)
*
* Copyright (c) 2014 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 "py/runtime.h"
#include "py/mphal.h"
#if MICROPY_PY_NETWORK && MICROPY_PY_LWIP
#include "shared/netutils/netutils.h"
#include "extmod/modnetwork.h"
#include "lwip/init.h"
#if LWIP_VERSION_MAJOR >= 2
#include "lwip/netif.h"
#include "lwip/timeouts.h"
#include "lwip/dns.h"
#include "lwip/dhcp.h"
// Implementations of network methods that can be used by any interface.
mp_obj_t mod_network_nic_ifconfig(struct netif *netif, size_t n_args, const mp_obj_t *args) {
if (n_args == 0) {
// Get IP addresses
const ip_addr_t *dns = dns_getserver(0);
mp_obj_t tuple[4] = {
netutils_format_ipv4_addr((uint8_t *)&netif->ip_addr, NETUTILS_BIG),
netutils_format_ipv4_addr((uint8_t *)&netif->netmask, NETUTILS_BIG),
netutils_format_ipv4_addr((uint8_t *)&netif->gw, NETUTILS_BIG),
netutils_format_ipv4_addr((uint8_t *)dns, NETUTILS_BIG),
};
return mp_obj_new_tuple(4, tuple);
} else if (args[0] == MP_OBJ_NEW_QSTR(MP_QSTR_dhcp)) {
// Start the DHCP client
if (dhcp_supplied_address(netif)) {
dhcp_renew(netif);
} else {
dhcp_stop(netif);
dhcp_start(netif);
}
// Wait for DHCP to get IP address
uint32_t start = mp_hal_ticks_ms();
while (!dhcp_supplied_address(netif)) {
if (mp_hal_ticks_ms() - start > 10000) {
mp_raise_msg(&mp_type_OSError, MP_ERROR_TEXT("timeout waiting for DHCP to get IP address"));
}
mp_hal_delay_ms(100);
}
return mp_const_none;
} else {
// Release and stop any existing DHCP
dhcp_release(netif);
dhcp_stop(netif);
// Set static IP addresses
mp_obj_t *items;
mp_obj_get_array_fixed_n(args[0], 4, &items);
netutils_parse_ipv4_addr(items[0], (uint8_t *)&netif->ip_addr, NETUTILS_BIG);
netutils_parse_ipv4_addr(items[1], (uint8_t *)&netif->netmask, NETUTILS_BIG);
netutils_parse_ipv4_addr(items[2], (uint8_t *)&netif->gw, NETUTILS_BIG);
ip_addr_t dns;
netutils_parse_ipv4_addr(items[3], (uint8_t *)&dns, NETUTILS_BIG);
dns_setserver(0, &dns);
return mp_const_none;
}
}
#endif // LWIP_VERSION_MAJOR >= 2
#endif // MICROPY_PY_NETWORK && MICROPY_PY_LWIP