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- // Module for TLS
- #include "module.h"
- #if defined(CLIENT_SSL_ENABLE) && defined(LUA_USE_MODULES_NET)
- #include "lauxlib.h"
- #include "platform.h"
- #include "lmem.h"
- #include <string.h>
- #include <stddef.h>
- #include <stdint.h>
- #include <ctype.h>
- #include "mem.h"
- #include "lwip/ip_addr.h"
- #include "espconn.h"
- #include "sys/espconn_mbedtls.h"
- #include "lwip/err.h"
- #include "lwip/dns.h"
- #include "mbedtls/debug.h"
- #include "user_mbedtls.h"
- #ifdef HAVE_SSL_SERVER_CRT
- #include HAVE_SSL_SERVER_CRT
- #else
- __attribute__((section(".servercert.flash"))) unsigned char tls_server_cert_area[INTERNAL_FLASH_SECTOR_SIZE];
- #endif
- __attribute__((section(".clientcert.flash"))) unsigned char tls_client_cert_area[INTERNAL_FLASH_SECTOR_SIZE];
- typedef struct {
- struct espconn pesp_conn;
- int self_ref;
- int cb_connect_ref;
- int cb_reconnect_ref;
- int cb_disconnect_ref;
- int cb_sent_ref;
- int cb_receive_ref;
- int cb_dns_ref;
- } tls_socket_ud;
- static int tls_socket_create( lua_State *L ) {
- tls_socket_ud *ud = (tls_socket_ud*) lua_newuserdata(L, sizeof(tls_socket_ud));
- bzero(&ud->pesp_conn, sizeof(ud->pesp_conn));
- ud->self_ref =
- ud->cb_connect_ref =
- ud->cb_reconnect_ref =
- ud->cb_disconnect_ref =
- ud->cb_sent_ref =
- ud->cb_receive_ref =
- ud->cb_dns_ref = LUA_NOREF;
- luaL_getmetatable(L, "tls.socket");
- lua_setmetatable(L, -2);
- return 1;
- }
- static void tls_socket_onconnect( struct espconn *pesp_conn ) {
- tls_socket_ud *ud = (tls_socket_ud *)pesp_conn;
- if (!ud || ud->self_ref == LUA_NOREF) return;
- if (ud->cb_connect_ref != LUA_NOREF) {
- lua_State *L = lua_getstate();
- lua_rawgeti(L, LUA_REGISTRYINDEX, ud->cb_connect_ref);
- lua_rawgeti(L, LUA_REGISTRYINDEX, ud->self_ref);
- lua_call(L, 1, 0);
- }
- }
- static void tls_socket_cleanup(tls_socket_ud *ud) {
- if (ud->pesp_conn.proto.tcp) {
- espconn_secure_disconnect(&ud->pesp_conn);
- free(ud->pesp_conn.proto.tcp);
- ud->pesp_conn.proto.tcp = NULL;
- }
- lua_State *L = lua_getstate();
- lua_gc(L, LUA_GCSTOP, 0);
- luaL_unref(L, LUA_REGISTRYINDEX, ud->self_ref);
- ud->self_ref = LUA_NOREF;
- lua_gc(L, LUA_GCRESTART, 0);
- }
- static void tls_socket_ondisconnect( struct espconn *pesp_conn ) {
- tls_socket_ud *ud = (tls_socket_ud *)pesp_conn;
- if (!ud || ud->self_ref == LUA_NOREF) return;
- tls_socket_cleanup(ud);
- if (ud->cb_disconnect_ref != LUA_NOREF) {
- lua_State *L = lua_getstate();
- lua_rawgeti(L, LUA_REGISTRYINDEX, ud->cb_disconnect_ref);
- lua_rawgeti(L, LUA_REGISTRYINDEX, ud->self_ref);
- tls_socket_cleanup(ud);
- lua_call(L, 1, 0);
- } else tls_socket_cleanup(ud);
- }
- static void tls_socket_onreconnect( struct espconn *pesp_conn, s8 err ) {
- tls_socket_ud *ud = (tls_socket_ud *)pesp_conn;
- if (!ud || ud->self_ref == LUA_NOREF) return;
- if (ud->cb_reconnect_ref != LUA_NOREF) {
- const char* reason = NULL;
- switch (err) {
- case(ESPCONN_MEM): reason = "Out of memory"; break;
- case(ESPCONN_TIMEOUT): reason = "Timeout"; break;
- case(ESPCONN_RTE): reason = "Routing problem"; break;
- case(ESPCONN_ABRT): reason = "Connection aborted"; break;
- case(ESPCONN_RST): reason = "Connection reset"; break;
- case(ESPCONN_CLSD): reason = "Connection closed"; break;
- case(ESPCONN_HANDSHAKE): reason = "SSL handshake failed"; break;
- case(ESPCONN_SSL_INVALID_DATA): reason = "SSL application invalid"; break;
- }
- lua_State *L = lua_getstate();
- lua_rawgeti(L, LUA_REGISTRYINDEX, ud->cb_reconnect_ref);
- lua_rawgeti(L, LUA_REGISTRYINDEX, ud->self_ref);
- if (reason != NULL) {
- lua_pushstring(L, reason);
- } else {
- lua_pushnil(L);
- }
- tls_socket_cleanup(ud);
- lua_call(L, 2, 0);
- } else tls_socket_cleanup(ud);
- }
- static void tls_socket_onrecv( struct espconn *pesp_conn, char *buf, u16 length ) {
- tls_socket_ud *ud = (tls_socket_ud *)pesp_conn;
- if (!ud || ud->self_ref == LUA_NOREF) return;
- if (ud->cb_receive_ref != LUA_NOREF) {
- lua_State *L = lua_getstate();
- lua_rawgeti(L, LUA_REGISTRYINDEX, ud->cb_receive_ref);
- lua_rawgeti(L, LUA_REGISTRYINDEX, ud->self_ref);
- lua_pushlstring(L, buf, length);
- lua_call(L, 2, 0);
- }
- }
- static void tls_socket_onsent( struct espconn *pesp_conn ) {
- tls_socket_ud *ud = (tls_socket_ud *)pesp_conn;
- if (!ud || ud->self_ref == LUA_NOREF) return;
- if (ud->cb_sent_ref != LUA_NOREF) {
- lua_State *L = lua_getstate();
- lua_rawgeti(L, LUA_REGISTRYINDEX, ud->cb_sent_ref);
- lua_rawgeti(L, LUA_REGISTRYINDEX, ud->self_ref);
- lua_call(L, 1, 0);
- }
- }
- static void tls_socket_dns_cb( const char* domain, const ip_addr_t *ip_addr, tls_socket_ud *ud ) {
- if (ud->self_ref == LUA_NOREF) return;
- ip_addr_t addr;
- if (ip_addr) addr = *ip_addr;
- else addr.addr = 0xFFFFFFFF;
- lua_State *L = lua_getstate();
- if (ud->cb_dns_ref != LUA_NOREF) {
- lua_rawgeti(L, LUA_REGISTRYINDEX, ud->cb_dns_ref);
- lua_rawgeti(L, LUA_REGISTRYINDEX, ud->self_ref);
- if (addr.addr == 0xFFFFFFFF) {
- lua_pushnil(L);
- } else {
- char tmp[20];
- sprintf(tmp, IPSTR, IP2STR(&addr.addr));
- lua_pushstring(L, tmp);
- }
- lua_call(L, 2, 0);
- }
- if (addr.addr == 0xFFFFFFFF) {
- lua_gc(L, LUA_GCSTOP, 0);
- luaL_unref(L, LUA_REGISTRYINDEX, ud->self_ref);
- ud->self_ref = LUA_NOREF;
- lua_gc(L, LUA_GCRESTART, 0);
- } else {
- os_memcpy(ud->pesp_conn.proto.tcp->remote_ip, &addr.addr, 4);
- espconn_secure_connect(&ud->pesp_conn);
- }
- }
- static int tls_socket_connect( lua_State *L ) {
- tls_socket_ud *ud = (tls_socket_ud *)luaL_checkudata(L, 1, "tls.socket");
- if (ud->pesp_conn.proto.tcp) {
- return luaL_error(L, "already connected");
- }
- u16 port = luaL_checkinteger( L, 2 );
- size_t il;
- const char *domain = "127.0.0.1";
- if( lua_isstring(L, 3) )
- domain = luaL_checklstring( L, 3, &il );
- if (port == 0)
- return luaL_error(L, "invalid port");
- if (domain == NULL)
- return luaL_error(L, "invalid domain");
- ud->pesp_conn.proto.udp = NULL;
- ud->pesp_conn.proto.tcp = (esp_tcp *)calloc(1,sizeof(esp_tcp));
- if(!ud->pesp_conn.proto.tcp){
- return luaL_error(L, "not enough memory");
- }
- ud->pesp_conn.type = ESPCONN_TCP;
- ud->pesp_conn.state = ESPCONN_NONE;
- ud->pesp_conn.proto.tcp->remote_port = port;
- espconn_regist_connectcb(&ud->pesp_conn, (espconn_connect_callback)tls_socket_onconnect);
- espconn_regist_disconcb(&ud->pesp_conn, (espconn_connect_callback)tls_socket_ondisconnect);
- espconn_regist_reconcb(&ud->pesp_conn, (espconn_reconnect_callback)tls_socket_onreconnect);
- espconn_regist_recvcb(&ud->pesp_conn, (espconn_recv_callback)tls_socket_onrecv);
- espconn_regist_sentcb(&ud->pesp_conn, (espconn_sent_callback)tls_socket_onsent);
- if (ud->self_ref == LUA_NOREF) {
- lua_pushvalue(L, 1); // copy to the top of stack
- ud->self_ref = luaL_ref(L, LUA_REGISTRYINDEX);
- }
- ip_addr_t addr;
- err_t err = dns_gethostbyname(domain, &addr, (dns_found_callback)tls_socket_dns_cb, ud);
- if (err == ERR_OK) {
- tls_socket_dns_cb(domain, &addr, ud);
- } else if (err != ERR_INPROGRESS) {
- tls_socket_dns_cb(domain, NULL, ud);
- }
- return 0;
- }
- static int tls_socket_on( lua_State *L ) {
- tls_socket_ud *ud = (tls_socket_ud *)luaL_checkudata(L, 1, "tls.socket");
- size_t sl;
- const char *method = luaL_checklstring( L, 2, &sl );
- int *cbp;
- if (strcmp(method, "connection" ) == 0) { cbp = &ud->cb_connect_ref ; }
- else if (strcmp(method, "disconnection") == 0) { cbp = &ud->cb_disconnect_ref; }
- else if (strcmp(method, "reconnection" ) == 0) { cbp = &ud->cb_reconnect_ref ; }
- else if (strcmp(method, "receive" ) == 0) { cbp = &ud->cb_receive_ref ; }
- else if (strcmp(method, "sent" ) == 0) { cbp = &ud->cb_sent_ref ; }
- else if (strcmp(method, "dns" ) == 0) { cbp = &ud->cb_dns_ref ; }
- else {
- return luaL_error(L, "invalid method");
- }
- if (lua_isfunction(L, 3)) {
- lua_pushvalue(L, 3); // copy argument (func) to the top of stack
- luaL_unref(L, LUA_REGISTRYINDEX, *cbp);
- *cbp = luaL_ref(L, LUA_REGISTRYINDEX);
- } else if (lua_isnil(L, 3)) {
- luaL_unref(L, LUA_REGISTRYINDEX, *cbp);
- *cbp = LUA_NOREF;
- } else {
- return luaL_error(L, "invalid callback function");
- }
- return 0;
- }
- static int tls_socket_send( lua_State *L ) {
- tls_socket_ud *ud = (tls_socket_ud *)luaL_checkudata(L, 1, "tls.socket");
- size_t sl;
- const char* buf = luaL_checklstring(L, 2, &sl);
- if(ud->pesp_conn.proto.tcp == NULL) {
- NODE_DBG("not connected");
- return 0;
- }
- espconn_secure_send(&ud->pesp_conn, (void*)buf, sl);
- return 0;
- }
- static int tls_socket_hold( lua_State *L ) {
- tls_socket_ud *ud = (tls_socket_ud *)luaL_checkudata(L, 1, "tls.socket");
- luaL_argcheck(L, ud, 1, "TLS socket expected");
- if(ud->pesp_conn.proto.tcp == NULL) {
- NODE_DBG("not connected");
- return 0;
- }
- espconn_recv_hold(&ud->pesp_conn);
- return 0;
- }
- static int tls_socket_unhold( lua_State *L ) {
- tls_socket_ud *ud = (tls_socket_ud *)luaL_checkudata(L, 1, "tls.socket");
- if(ud->pesp_conn.proto.tcp == NULL) {
- NODE_DBG("not connected");
- return 0;
- }
- espconn_recv_unhold(&ud->pesp_conn);
- return 0;
- }
- static int tls_socket_getpeer( lua_State *L ) {
- tls_socket_ud *ud = (tls_socket_ud *)luaL_checkudata(L, 1, "tls.socket");
- if(ud->pesp_conn.proto.tcp && ud->pesp_conn.proto.tcp->remote_port != 0){
- char temp[20] = {0};
- sprintf(temp, IPSTR, IP2STR( &(ud->pesp_conn.proto.tcp->remote_ip) ) );
- lua_pushstring( L, temp );
- lua_pushinteger( L, ud->pesp_conn.proto.tcp->remote_port );
- } else {
- lua_pushnil( L );
- lua_pushnil( L );
- }
- return 2;
- }
- static int tls_socket_close( lua_State *L ) {
- tls_socket_ud *ud = (tls_socket_ud *)luaL_checkudata(L, 1, "tls.socket");
- if (ud->pesp_conn.proto.tcp) {
- espconn_secure_disconnect(&ud->pesp_conn);
- }
- return 0;
- }
- static int tls_socket_delete( lua_State *L ) {
- tls_socket_ud *ud = (tls_socket_ud *)luaL_checkudata(L, 1, "tls.socket");
- if (ud->pesp_conn.proto.tcp) {
- espconn_secure_disconnect(&ud->pesp_conn);
- free(ud->pesp_conn.proto.tcp);
- ud->pesp_conn.proto.tcp = NULL;
- }
- luaL_unref(L, LUA_REGISTRYINDEX, ud->cb_connect_ref);
- ud->cb_connect_ref = LUA_NOREF;
- luaL_unref(L, LUA_REGISTRYINDEX, ud->cb_disconnect_ref);
- ud->cb_disconnect_ref = LUA_NOREF;
- luaL_unref(L, LUA_REGISTRYINDEX, ud->cb_reconnect_ref);
- ud->cb_reconnect_ref = LUA_NOREF;
- luaL_unref(L, LUA_REGISTRYINDEX, ud->cb_dns_ref);
- ud->cb_dns_ref = LUA_NOREF;
- luaL_unref(L, LUA_REGISTRYINDEX, ud->cb_receive_ref);
- ud->cb_receive_ref = LUA_NOREF;
- luaL_unref(L, LUA_REGISTRYINDEX, ud->cb_sent_ref);
- ud->cb_sent_ref = LUA_NOREF;
- lua_gc(L, LUA_GCSTOP, 0);
- luaL_unref(L, LUA_REGISTRYINDEX, ud->self_ref);
- ud->self_ref = LUA_NOREF;
- lua_gc(L, LUA_GCRESTART, 0);
- return 0;
- }
- // Returns NULL on success, error message otherwise
- static const char *append_pem_blob(const char *pem, const char *type, uint8_t **buffer_p, uint8_t *buffer_limit, const char *name) {
- char unb64[256];
- memset(unb64, 0xff, sizeof(unb64));
- int i;
- for (i = 0; i < 64; i++) {
- unb64["ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/"[i]] = i;
- }
- if (!pem) {
- return "No PEM blob";
- }
- // Scan for -----BEGIN CERT
- pem = strstr(pem, "-----BEGIN ");
- if (!pem) {
- return "No PEM header";
- }
- if (strncmp(pem + 11, type, strlen(type))) {
- return "Wrong PEM type";
- }
- pem = strchr(pem, '\n');
- if (!pem) {
- return "Incorrect PEM format";
- }
- //
- // Base64 encoded data starts here
- // Get all the base64 data into a single buffer....
- // We will use the back end of the buffer....
- //
- uint8_t *buffer = *buffer_p;
- uint8_t *dest = buffer + 32 + 2; // Leave space for name and length
- int bitcount = 0;
- int accumulator = 0;
- for (; *pem && dest < buffer_limit; pem++) {
- int val = unb64[*(uint8_t*) pem];
- if (val & 0xC0) {
- // not a base64 character
- if (isspace(*(uint8_t*) pem)) {
- continue;
- }
- if (*pem == '=') {
- // just ignore -- at the end
- bitcount = 0;
- continue;
- }
- if (*pem == '-') {
- break;
- }
- return "Invalid character in PEM";
- } else {
- bitcount += 6;
- accumulator = (accumulator << 6) + val;
- if (bitcount >= 8) {
- bitcount -= 8;
- *dest++ = accumulator >> bitcount;
- }
- }
- }
- if (dest >= buffer_limit || strncmp(pem, "-----END ", 9) || strncmp(pem + 9, type, strlen(type)) || bitcount) {
- return "Invalid PEM format data";
- }
- size_t len = dest - (buffer + 32 + 2);
- memset(buffer, 0, 32);
- strcpy(buffer, name);
- buffer[32] = len & 0xff;
- buffer[33] = (len >> 8) & 0xff;
- *buffer_p = dest;
- return NULL;
- }
- static const char *fill_page_with_pem(lua_State *L, const unsigned char *flash_memory, int flash_offset, const char **types, const char **names)
- {
- uint8_t *buffer = luaM_malloc(L, INTERNAL_FLASH_SECTOR_SIZE);
- uint8_t *buffer_base = buffer;
- uint8_t *buffer_limit = buffer + INTERNAL_FLASH_SECTOR_SIZE;
- int argno;
- for (argno = 1; argno <= lua_gettop(L) && types[argno - 1]; argno++) {
- const char *pem = lua_tostring(L, argno);
- const char *error = append_pem_blob(pem, types[argno - 1], &buffer, buffer_limit, names[argno - 1]);
- if (error) {
- luaM_free(L, buffer_base);
- return error;
- }
- }
- memset(buffer, 0xff, buffer_limit - buffer);
- // Lets see if it matches what is already there....
- if (memcmp(buffer_base, flash_memory, INTERNAL_FLASH_SECTOR_SIZE) != 0) {
- // Starts being dangerous
- if (platform_flash_erase_sector(flash_offset / INTERNAL_FLASH_SECTOR_SIZE) != PLATFORM_OK) {
- luaM_free(L, buffer_base);
- return "Failed to erase sector";
- }
- if (platform_s_flash_write(buffer_base, flash_offset, INTERNAL_FLASH_SECTOR_SIZE) != INTERNAL_FLASH_SECTOR_SIZE) {
- luaM_free(L, buffer_base);
- return "Failed to write sector";
- }
- // ends being dangerous
- }
- luaM_free(L, buffer_base);
- return NULL;
- }
- // Lua: tls.cert.auth(PEM data [, PEM data] )
- // Lua: tls.cert.auth(true / false)
- static int tls_cert_auth(lua_State *L)
- {
- if (ssl_client_options.cert_auth_callback != LUA_NOREF) {
- luaL_unref(L, LUA_REGISTRYINDEX, ssl_client_options.cert_auth_callback);
- ssl_client_options.cert_auth_callback = LUA_NOREF;
- }
- if (lua_type(L, 1) == LUA_TFUNCTION) {
- ssl_client_options.cert_auth_callback = luaL_ref(L, LUA_REGISTRYINDEX);
- lua_pushboolean(L, true);
- return 1;
- }
- if (lua_type(L, 1) != LUA_TNIL) {
- platform_print_deprecation_note("tls.cert.auth's old interface", "soon");
- }
- int enable;
- uint32_t flash_offset = platform_flash_mapped2phys((uint32_t) &tls_client_cert_area[0]);
- if ((flash_offset & 0xfff) || flash_offset > 0xff000 || INTERNAL_FLASH_SECTOR_SIZE != 0x1000) {
- // THis should never happen
- return luaL_error( L, "bad offset" );
- }
- if (lua_type(L, 1) == LUA_TSTRING) {
- const char *types[3] = { "CERTIFICATE", "RSA PRIVATE KEY", NULL };
- const char *names[2] = { "certificate", "private_key" };
- const char *error = fill_page_with_pem(L, &tls_client_cert_area[0], flash_offset, types, names);
- if (error) {
- return luaL_error(L, error);
- }
- enable = 1;
- } else {
- enable = lua_toboolean(L, 1);
- }
- bool rc;
- if (enable) {
- // See if there is a cert there
- if (tls_client_cert_area[0] == 0x00 || tls_client_cert_area[0] == 0xff) {
- return luaL_error( L, "no certificates found" );
- }
- rc = espconn_secure_cert_req_enable(ESPCONN_CLIENT, flash_offset / INTERNAL_FLASH_SECTOR_SIZE);
- } else {
- rc = espconn_secure_cert_req_disable(ESPCONN_CLIENT);
- }
- lua_pushboolean(L, rc);
- return 1;
- }
- // Lua: tls.cert.verify(PEM data [, PEM data] )
- // Lua: tls.cert.verify(true / false)
- static int tls_cert_verify(lua_State *L)
- {
- if (ssl_client_options.cert_verify_callback != LUA_NOREF) {
- luaL_unref(L, LUA_REGISTRYINDEX, ssl_client_options.cert_verify_callback);
- ssl_client_options.cert_verify_callback = LUA_NOREF;
- }
- if (lua_type(L, 1) == LUA_TFUNCTION) {
- ssl_client_options.cert_verify_callback = luaL_ref(L, LUA_REGISTRYINDEX);
- lua_pushboolean(L, true);
- return 1;
- }
- if (lua_type(L, 1) != LUA_TNIL) {
- platform_print_deprecation_note("tls.cert.verify's old interface", "soon");
- }
- int enable;
- uint32_t flash_offset = platform_flash_mapped2phys((uint32_t) &tls_server_cert_area[0]);
- if ((flash_offset & 0xfff) || flash_offset > 0xff000 || INTERNAL_FLASH_SECTOR_SIZE != 0x1000) {
- // THis should never happen
- return luaL_error( L, "bad offset" );
- }
- if (lua_type(L, 1) == LUA_TSTRING) {
- const char *types[2] = { "CERTIFICATE", NULL };
- const char *names[1] = { "certificate" };
- const char *error = fill_page_with_pem(L, &tls_server_cert_area[0], flash_offset, types, names);
- if (error) {
- return luaL_error(L, error);
- }
- enable = 1;
- } else {
- enable = lua_toboolean(L, 1);
- }
- bool rc;
- if (enable) {
- // See if there is a cert there
- if (tls_server_cert_area[0] == 0x00 || tls_server_cert_area[0] == 0xff) {
- return luaL_error( L, "no certificates found" );
- }
- rc = espconn_secure_ca_enable(ESPCONN_CLIENT, flash_offset / INTERNAL_FLASH_SECTOR_SIZE);
- } else {
- rc = espconn_secure_ca_disable(ESPCONN_CLIENT);
- }
- lua_pushboolean(L, rc);
- return 1;
- }
- #if defined(MBEDTLS_DEBUG_C)
- static int tls_set_debug_threshold(lua_State *L) {
- mbedtls_debug_set_threshold(luaL_checkint( L, 1 ));
- return 0;
- }
- #endif
- LROT_BEGIN(tls_socket, NULL, LROT_MASK_GC_INDEX)
- LROT_FUNCENTRY( __gc, tls_socket_delete )
- LROT_TABENTRY( __index, tls_socket )
- LROT_FUNCENTRY( connect, tls_socket_connect )
- LROT_FUNCENTRY( close, tls_socket_close )
- LROT_FUNCENTRY( on, tls_socket_on )
- LROT_FUNCENTRY( send, tls_socket_send )
- LROT_FUNCENTRY( hold, tls_socket_hold )
- LROT_FUNCENTRY( unhold, tls_socket_unhold )
- LROT_FUNCENTRY( getpeer, tls_socket_getpeer )
- LROT_END(tls_socket, NULL, LROT_MASK_GC_INDEX)
- LROT_BEGIN(tls_cert, NULL, LROT_MASK_INDEX)
- LROT_TABENTRY( __index, tls_cert )
- LROT_FUNCENTRY( verify, tls_cert_verify )
- LROT_FUNCENTRY( auth, tls_cert_auth )
- LROT_END(tls_cert, NULL, LROT_MASK_INDEX)
- LROT_BEGIN(tls, NULL, 0)
- LROT_FUNCENTRY( createConnection, tls_socket_create )
- #if defined(MBEDTLS_DEBUG_C)
- LROT_FUNCENTRY( setDebug, tls_set_debug_threshold )
- #endif
- LROT_TABENTRY( cert, tls_cert )
- LROT_END(tls, NULL, 0)
- int luaopen_tls( lua_State *L ) {
- luaL_rometatable(L, "tls.socket", LROT_TABLEREF(tls_socket));
- return 0;
- }
- NODEMCU_MODULE(TLS, "tls", tls, luaopen_tls);
- #endif
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