/* * This file is part of the Micro Python project, http://micropython.org/ * * The MIT License (MIT) * * Copyright (c) 2013, 2014 Damien P. George * Copyright (c) 2015 Daniel Campora * * 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 #include #include #include "py/mpstate.h" #include MICROPY_HAL_H #include "modnetwork.h" #include "mpexception.h" /// \module network - network configuration /// /// This module provides network drivers and routing configuration. void mod_network_init(void) { mp_obj_list_init(&MP_STATE_PORT(mod_network_nic_list), 0); } void mod_network_register_nic(mp_obj_t nic) { for (mp_uint_t i = 0; i < MP_STATE_PORT(mod_network_nic_list).len; i++) { if (MP_STATE_PORT(mod_network_nic_list).items[i] == nic) { // nic already registered return; } } // nic not registered so add to list mp_obj_list_append(&MP_STATE_PORT(mod_network_nic_list), nic); } mp_obj_t mod_network_find_nic(const uint8_t *ip) { // find a NIC that is suited to given IP address for (mp_uint_t i = 0; i < MP_STATE_PORT(mod_network_nic_list).len; i++) { mp_obj_t nic = MP_STATE_PORT(mod_network_nic_list).items[i]; return nic; } nlr_raise(mp_obj_new_exception_msg(&mp_type_OSError, mpexception_os_resource_not_avaliable)); } STATIC mp_obj_t network_route(void) { return &MP_STATE_PORT(mod_network_nic_list); } STATIC MP_DEFINE_CONST_FUN_OBJ_0(network_route_obj, network_route); STATIC const mp_map_elem_t mp_module_network_globals_table[] = { { MP_OBJ_NEW_QSTR(MP_QSTR___name__), MP_OBJ_NEW_QSTR(MP_QSTR_network) }, { MP_OBJ_NEW_QSTR(MP_QSTR_WLAN), (mp_obj_t)&mod_network_nic_type_wlan }, { MP_OBJ_NEW_QSTR(MP_QSTR_route), (mp_obj_t)&network_route_obj }, }; STATIC MP_DEFINE_CONST_DICT(mp_module_network_globals, mp_module_network_globals_table); const mp_obj_module_t mp_module_network = { .base = { &mp_type_module }, .name = MP_QSTR_network, .globals = (mp_obj_dict_t*)&mp_module_network_globals, }; /******************************************************************************/ // Miscellaneous helpers void mod_network_convert_ipv4_endianness(uint8_t *ip) { uint8_t ip0 = ip[0]; ip[0] = ip[3]; ip[3] = ip0; uint8_t ip1 = ip[1]; ip[1] = ip[2]; ip[2] = ip1; } // Takes an address of the form '192.168.0.1' and converts it to network format // in out_ip (big endian, so the 192 is the first byte). void mod_network_parse_ipv4_addr(mp_obj_t addr_in, uint8_t *out_ip) { mp_uint_t addr_len; const char *addr_str = mp_obj_str_get_data(addr_in, &addr_len); if (addr_len == 0) { // special case of no address given memset(out_ip, 0, MOD_NETWORK_IPV4ADDR_BUF_SIZE); return; } const char *s = addr_str; const char *s_top = addr_str + addr_len; for (mp_uint_t i = 0;; i++) { mp_uint_t val = 0; for (; s < s_top && *s != '.'; s++) { val = val * 10 + *s - '0'; } out_ip[i] = val; if (i == 3 && s == s_top) { return; } else if (i < 3 && s < s_top && *s == '.') { s++; } else { nlr_raise(mp_obj_new_exception_msg(&mp_type_ValueError, mpexception_value_invalid_arguments)); } } } // Takes an address of the form ('192.168.0.1', 8080), returns the port and // puts IP in out_ip (which must take at least IPADDR_BUF_SIZE bytes). mp_uint_t mod_network_parse_inet_addr(mp_obj_t addr_in, uint8_t *out_ip) { mp_obj_t *addr_items; mp_obj_get_array_fixed_n(addr_in, 2, &addr_items); mod_network_parse_ipv4_addr(addr_items[0], out_ip); return mp_obj_get_int(addr_items[1]); } // Takes an array with a raw IPv4 address and returns something like '192.168.0.1'. mp_obj_t mod_network_format_ipv4_addr(uint8_t *ip) { char ip_str[16]; mp_uint_t ip_len = snprintf(ip_str, 16, "%u.%u.%u.%u", ip[0], ip[1], ip[2], ip[3]); return mp_obj_new_str(ip_str, ip_len, false); } // Takes an array with a raw IP address, and a port, and returns a net-address // tuple such as ('192.168.0.1', 8080). mp_obj_t mod_network_format_inet_addr(uint8_t *ip, mp_uint_t port) { mp_obj_t tuple[2] = { tuple[0] = mod_network_format_ipv4_addr(ip), tuple[1] = mp_obj_new_int(port), }; return mp_obj_new_tuple(2, tuple); }