#include #include #include #include #include #include #include #include #include "nlr.h" #include "misc.h" #include "mpconfig.h" #include "qstr.h" #include "obj.h" #include "objtuple.h" #include "objarray.h" #include "runtime.h" #include "stream.h" #define MICROPY_SOCKET_EXTRA (0) typedef struct _mp_obj_socket_t { mp_obj_base_t base; int fd; } mp_obj_socket_t; static const mp_obj_type_t microsocket_type; // Helper functions #define RAISE_ERRNO(err_flag, error_val) \ { if (err_flag == -1) \ { nlr_jump(mp_obj_new_exception_msg_varg(MP_QSTR_OSError, "[Errno %d]", error_val)); } } static void get_buffer(mp_obj_t obj, buffer_info_t *bufinfo) { mp_obj_base_t *o = (mp_obj_base_t *)obj; if (o->type->buffer_p.get_buffer == NULL) { goto error; } o->type->buffer_p.get_buffer(o, bufinfo, BUFFER_READ); if (bufinfo->buf == NULL) { goto error; } return; error: nlr_jump(mp_obj_new_exception_msg(MP_QSTR_TypeError, "Operation not supported")); } static mp_obj_socket_t *socket_new(int fd) { mp_obj_socket_t *o = m_new_obj(mp_obj_socket_t); o->base.type = µsocket_type; o->fd = fd; return o; } static void socket_print(void (*print)(void *env, const char *fmt, ...), void *env, mp_obj_t self_in, mp_print_kind_t kind) { mp_obj_socket_t *self = self_in; print(env, "<_socket %d>", self->fd); } static machine_int_t socket_read(mp_obj_t o_in, void *buf, machine_uint_t size, int *errcode) { mp_obj_socket_t *o = o_in; machine_int_t r = read(o->fd, buf, size); if (r == -1) { *errcode = errno; } return r; } static machine_int_t socket_write(mp_obj_t o_in, const void *buf, machine_uint_t size, int *errcode) { mp_obj_socket_t *o = o_in; machine_int_t r = write(o->fd, buf, size); if (r == -1) { *errcode = errno; } return r; } static mp_obj_t socket_close(mp_obj_t self_in) { mp_obj_socket_t *self = self_in; close(self->fd); return mp_const_none; } static MP_DEFINE_CONST_FUN_OBJ_1(socket_close_obj, socket_close); static mp_obj_t socket_fileno(mp_obj_t self_in) { mp_obj_socket_t *self = self_in; return MP_OBJ_NEW_SMALL_INT(self->fd); } static MP_DEFINE_CONST_FUN_OBJ_1(socket_fileno_obj, socket_fileno); static mp_obj_t socket_connect(mp_obj_t self_in, mp_obj_t addr_in) { mp_obj_socket_t *self = self_in; buffer_info_t bufinfo; get_buffer(addr_in, &bufinfo); int r = connect(self->fd, (const struct sockaddr *)bufinfo.buf, bufinfo.len); RAISE_ERRNO(r, errno); return mp_const_none; } static MP_DEFINE_CONST_FUN_OBJ_2(socket_connect_obj, socket_connect); static mp_obj_t socket_bind(mp_obj_t self_in, mp_obj_t addr_in) { mp_obj_socket_t *self = self_in; buffer_info_t bufinfo; get_buffer(addr_in, &bufinfo); int r = bind(self->fd, (const struct sockaddr *)bufinfo.buf, bufinfo.len); RAISE_ERRNO(r, errno); return mp_const_none; } static MP_DEFINE_CONST_FUN_OBJ_2(socket_bind_obj, socket_bind); static mp_obj_t socket_listen(mp_obj_t self_in, mp_obj_t backlog_in) { mp_obj_socket_t *self = self_in; int r = listen(self->fd, MP_OBJ_SMALL_INT_VALUE(backlog_in)); RAISE_ERRNO(r, errno); return mp_const_none; } static MP_DEFINE_CONST_FUN_OBJ_2(socket_listen_obj, socket_listen); static mp_obj_t socket_accept(mp_obj_t self_in) { mp_obj_socket_t *self = self_in; struct sockaddr addr; socklen_t addr_len = sizeof(addr); int fd = accept(self->fd, &addr, &addr_len); RAISE_ERRNO(fd, errno); mp_obj_tuple_t *t = mp_obj_new_tuple(2, NULL); t->items[0] = socket_new(fd); t->items[1] = mp_obj_new_bytearray(addr_len, &addr); return t; } static MP_DEFINE_CONST_FUN_OBJ_1(socket_accept_obj, socket_accept); static mp_obj_t socket_recv(uint n_args, const mp_obj_t *args) { mp_obj_socket_t *self = args[0]; int sz = MP_OBJ_SMALL_INT_VALUE(args[1]); int flags = 0; if (n_args > 2) { flags = MP_OBJ_SMALL_INT_VALUE(args[2]); } char *buf = m_new(char, sz); int out_sz = recv(self->fd, buf, sz, flags); RAISE_ERRNO(out_sz, errno); buf = m_realloc(buf, sz, out_sz); return MP_OBJ_NEW_QSTR(qstr_from_strn_take(buf, out_sz, out_sz)); } static MP_DEFINE_CONST_FUN_OBJ_VAR_BETWEEN(socket_recv_obj, 2, 3, socket_recv); static mp_obj_t socket_send(uint n_args, const mp_obj_t *args) { mp_obj_socket_t *self = args[0]; int flags = 0; if (n_args > 2) { flags = MP_OBJ_SMALL_INT_VALUE(args[2]); } uint sz; const char *buf = mp_obj_str_get_data(args[1], &sz); int out_sz = send(self->fd, buf, sz, flags); RAISE_ERRNO(out_sz, errno); return MP_OBJ_NEW_SMALL_INT((machine_int_t)out_sz); } static MP_DEFINE_CONST_FUN_OBJ_VAR_BETWEEN(socket_send_obj, 2, 3, socket_send); static mp_obj_t socket_setsockopt(uint n_args, const mp_obj_t *args) { mp_obj_socket_t *self = args[0]; int level = MP_OBJ_SMALL_INT_VALUE(args[1]); int option = mp_obj_get_int(args[2]); const void *optval; socklen_t optlen; if (MP_OBJ_IS_INT(args[3])) { int val = mp_obj_int_get(args[3]); optval = &val; optlen = sizeof(val); } else { buffer_info_t bufinfo; get_buffer(args[3], &bufinfo); optval = bufinfo.buf; optlen = bufinfo.len; } int r = setsockopt(self->fd, level, option, optval, optlen); RAISE_ERRNO(r, errno); return mp_const_none; } static MP_DEFINE_CONST_FUN_OBJ_VAR_BETWEEN(socket_setsockopt_obj, 4, 4, socket_setsockopt); static mp_obj_t socket_make_new(mp_obj_t type_in, uint n_args, uint n_kw, const mp_obj_t *args) { int family = AF_INET; int type = SOCK_STREAM; int proto = 0; if (n_args > 0) { assert(MP_OBJ_IS_SMALL_INT(args[0])); family = MP_OBJ_SMALL_INT_VALUE(args[0]); if (n_args > 1) { assert(MP_OBJ_IS_SMALL_INT(args[1])); type = MP_OBJ_SMALL_INT_VALUE(args[1]); if (n_args > 2) { assert(MP_OBJ_IS_SMALL_INT(args[2])); proto = MP_OBJ_SMALL_INT_VALUE(args[2]); } } } int fd = socket(family, type, proto); RAISE_ERRNO(fd, errno); return socket_new(fd); } static const mp_method_t microsocket_type_methods[] = { { "fileno", &socket_fileno_obj }, { "makefile", &mp_identity_obj }, { "read", &mp_stream_read_obj }, { "readall", &mp_stream_readall_obj }, { "readline", &mp_stream_unbuffered_readline_obj}, { "write", &mp_stream_write_obj }, { "connect", &socket_connect_obj }, { "bind", &socket_bind_obj }, { "listen", &socket_listen_obj }, { "accept", &socket_accept_obj }, { "recv", &socket_recv_obj }, { "send", &socket_send_obj }, { "setsockopt", &socket_setsockopt_obj }, { "close", &socket_close_obj }, #if MICROPY_SOCKET_EXTRA { "recv", &mp_stream_read_obj }, { "send", &mp_stream_write_obj }, #endif { NULL, NULL }, }; static const mp_obj_type_t microsocket_type = { { &mp_const_type }, "socket", .print = socket_print, .make_new = socket_make_new, .getiter = NULL, .iternext = NULL, .stream_p = { .read = socket_read, .write = socket_write, }, .methods = microsocket_type_methods, }; static mp_obj_t mod_socket_htons(mp_obj_t arg) { return MP_OBJ_NEW_SMALL_INT((machine_int_t)htons(MP_OBJ_SMALL_INT_VALUE(arg))); } static MP_DEFINE_CONST_FUN_OBJ_1(mod_socket_htons_obj, mod_socket_htons); static mp_obj_t mod_socket_inet_aton(mp_obj_t arg) { assert(MP_OBJ_IS_TYPE(arg, &str_type)); const char *s = mp_obj_str_get_str(arg); struct in_addr addr; if (!inet_aton(s, &addr)) { nlr_jump(mp_obj_new_exception_msg(MP_QSTR_OSError, "Invalid IP address")); } return mp_obj_new_int(addr.s_addr); } static MP_DEFINE_CONST_FUN_OBJ_1(mod_socket_inet_aton_obj, mod_socket_inet_aton); #if MICROPY_SOCKET_EXTRA static mp_obj_t mod_socket_gethostbyname(mp_obj_t arg) { assert(MP_OBJ_IS_TYPE(arg, &str_type)); const char *s = mp_obj_str_get_str(arg); struct hostent *h = gethostbyname(s); if (h == NULL) { nlr_jump(mp_obj_new_exception_msg_varg(MP_QSTR_OSError, "[Errno %d]", errno)); } assert(h->h_length == 4); return mp_obj_new_int(*(int*)*h->h_addr_list); } static MP_DEFINE_CONST_FUN_OBJ_1(mod_socket_gethostbyname_obj, mod_socket_gethostbyname); #endif static mp_obj_t mod_socket_getaddrinfo(uint n_args, const mp_obj_t *args) { // TODO: Implement all args assert(n_args == 2); assert(MP_OBJ_IS_STR(args[0])); const char *host = mp_obj_str_get_str(args[0]); const char *serv = NULL; // getaddrinfo accepts port in string notation, so however // it may seem stupid, we need to convert int to str if (MP_OBJ_IS_SMALL_INT(args[1])) { int port = MP_OBJ_SMALL_INT_VALUE(args[1]); static char buf[20]; sprintf(buf, "%d", port); serv = buf; } else { serv = mp_obj_str_get_str(args[1]); } struct addrinfo hints; struct addrinfo *addr; memset(&hints, 0, sizeof(hints)); int res = getaddrinfo(host, serv, NULL/*&hints*/, &addr); if (res != 0) { nlr_jump(mp_obj_new_exception_msg_varg(MP_QSTR_OSError, "[addrinfo error %d]", res)); } assert(addr); mp_obj_t list = rt_build_list(0, NULL); for (; addr; addr = addr->ai_next) { mp_obj_tuple_t *t = mp_obj_new_tuple(5, NULL); t->items[0] = MP_OBJ_NEW_SMALL_INT((machine_int_t)addr->ai_family); t->items[1] = MP_OBJ_NEW_SMALL_INT((machine_int_t)addr->ai_socktype); t->items[2] = MP_OBJ_NEW_SMALL_INT((machine_int_t)addr->ai_protocol); // "canonname will be a string representing the canonical name of the host // if AI_CANONNAME is part of the flags argument; else canonname will be empty." ?? if (addr->ai_canonname) { t->items[3] = MP_OBJ_NEW_QSTR(qstr_from_str(addr->ai_canonname)); } else { t->items[3] = mp_const_none; } t->items[4] = mp_obj_new_bytearray(addr->ai_addrlen, addr->ai_addr); rt_list_append(list, t); } return list; } static MP_DEFINE_CONST_FUN_OBJ_VAR_BETWEEN(mod_socket_getaddrinfo_obj, 2, 6, mod_socket_getaddrinfo); extern mp_obj_type_t sockaddr_in_type; #define C(name) { #name, name } static const struct sym_entry { const char *sym; int val; } constants[] = { C(AF_UNIX), C(AF_INET), C(AF_INET6), C(SOCK_STREAM), C(SOCK_DGRAM), C(SOCK_RAW), C(MSG_DONTROUTE), C(MSG_DONTWAIT), C(SOL_SOCKET), C(SO_BROADCAST), C(SO_ERROR), C(SO_KEEPALIVE), C(SO_LINGER), C(SO_REUSEADDR), {NULL} }; #undef C void microsocket_init() { mp_obj_t m = mp_obj_new_module(MP_QSTR_microsocket); rt_store_attr(m, MP_QSTR_socket, (mp_obj_t)µsocket_type); #if MICROPY_SOCKET_EXTRA rt_store_attr(m, MP_QSTR_sockaddr_in, (mp_obj_t)&sockaddr_in_type); rt_store_attr(m, MP_QSTR_htons, (mp_obj_t)&mod_socket_htons_obj); rt_store_attr(m, MP_QSTR_inet_aton, (mp_obj_t)&mod_socket_inet_aton_obj); rt_store_attr(m, MP_QSTR_gethostbyname, (mp_obj_t)&mod_socket_gethostbyname_obj); #endif rt_store_attr(m, MP_QSTR_getaddrinfo, (mp_obj_t)&mod_socket_getaddrinfo_obj); for (const struct sym_entry *p = constants; p->sym != NULL; p++) { rt_store_attr(m, QSTR_FROM_STR_STATIC(p->sym), MP_OBJ_NEW_SMALL_INT((machine_int_t)p->val)); } }