Mbedtls symbols and more (#508)

TactilityC/CMakeLists.txt

@@ -10,6 +10,7 @@ list(APPEND PRIV_REQUIRES_LIST
     Tactility
     TactilityCore
     TactilityKernel
+    mbedtls
 )
 
 if (DEFINED ENV{ESP_IDF_VERSION})

TactilityC/Private/symbols/mbedtls.h

@@ -0,0 +1,5 @@
+#pragma once
+
+#include <private/elf_symbol.h>
+
+extern const esp_elfsym mbedtls_symbols[];

TactilityC/Source/symbols/gcc_soft_float.cpp

@@ -64,8 +64,8 @@ extern long __fixdfdi(double a);
 // extern long long __fixtfti(long double a);
 // extern long long __fixxfti(long double a);
 
-// extern unsigned int __fixunssfsi(float a);
+extern unsigned int __fixunssfsi(float a);
-// extern unsigned int __fixunsdfsi(double a);
+extern unsigned int __fixunsdfsi(double a);
 // extern unsigned int __fixunstfsi(long double a);
 // extern unsigned int __fixunsxfsi(long double a);
 
@@ -79,8 +79,8 @@ extern unsigned long __fixunsdfdi(double a);
 // extern unsigned long long __fixunstfti(long double a);
 // extern unsigned long long __fixunsxfti(long double a);
 
-// extern float __floatsisf(int i);
+extern float __floatsisf(int i);
-// extern double __floatsidf(int i);
+extern double __floatsidf(int i);
 // extern long double __floatsitf(int i);
 // extern long double __floatsixf(int i);
 
@@ -146,6 +146,12 @@ int __gtsf2(float a, float b);
 int __gtdf2(double a, double b);
 // int __gttf2(long double a, long double b);
 
+// GCC integer arithmetic helpers (needed on 32-bit targets for 64-bit ops)
+long long __divdi3(long long a, long long b);
+long long __moddi3(long long a, long long b);
+unsigned long long __udivdi3(unsigned long long a, unsigned long long b);
+unsigned long long __umoddi3(unsigned long long a, unsigned long long b);
+
 } // extern "C"
 
 const esp_elfsym gcc_soft_float_symbols[] = {
@@ -201,8 +207,8 @@ const esp_elfsym gcc_soft_float_symbols[] = {
     // ESP_ELFSYM_EXPORT(__fixtfti),
     // ESP_ELFSYM_EXPORT(__fixxfti),
 
-    // ESP_ELFSYM_EXPORT(__fixunssfsi),
+    ESP_ELFSYM_EXPORT(__fixunssfsi),
-    // ESP_ELFSYM_EXPORT(__fixunsdfsi),
+    ESP_ELFSYM_EXPORT(__fixunsdfsi),
     // ESP_ELFSYM_EXPORT(__fixunstfsi),
     // ESP_ELFSYM_EXPORT(__fixunsxfsi),
 
@@ -216,8 +222,8 @@ const esp_elfsym gcc_soft_float_symbols[] = {
     // ESP_ELFSYM_EXPORT(__fixunstfti),
     // ESP_ELFSYM_EXPORT(__fixunsxfti),
 
-    // ESP_ELFSYM_EXPORT(__floatsisf),
+    ESP_ELFSYM_EXPORT(__floatsisf),
-    // ESP_ELFSYM_EXPORT(__floatsidf),
+    ESP_ELFSYM_EXPORT(__floatsidf),
     // ESP_ELFSYM_EXPORT(__floatsitf),
     // ESP_ELFSYM_EXPORT(__floatsixf),
 
@@ -283,6 +289,12 @@ const esp_elfsym gcc_soft_float_symbols[] = {
     ESP_ELFSYM_EXPORT(__gtdf2),
     // ESP_ELFSYM_EXPORT(__gttf2),
 
+    // GCC integer arithmetic helpers
+    ESP_ELFSYM_EXPORT(__divdi3),
+    ESP_ELFSYM_EXPORT(__moddi3),
+    ESP_ELFSYM_EXPORT(__udivdi3),
+    ESP_ELFSYM_EXPORT(__umoddi3),
+
     ESP_ELFSYM_END
 };
 

TactilityC/Source/symbols/mbedtls.cpp

@@ -0,0 +1,100 @@
+#include <private/elf_symbol.h>
+#include <cstddef>
+#include <cstdlib>
+
+#include <symbols/mbedtls.h>
+
+#include <mbedtls/ctr_drbg.h>
+#include <mbedtls/entropy.h>
+#include <mbedtls/cipher.h>
+#include <mbedtls/md.h>
+#include <mbedtls/bignum.h>
+#include <mbedtls/rsa.h>
+#include <mbedtls/pk.h>
+#include <mbedtls/ecp.h>
+#include <mbedtls/ecdsa.h>
+#include <mbedtls/ecdh.h>
+#include <mbedtls/error.h>
+
+const esp_elfsym mbedtls_symbols[] = {
+    // CTR_DRBG (random number generation)
+    ESP_ELFSYM_EXPORT(mbedtls_ctr_drbg_init),
+    ESP_ELFSYM_EXPORT(mbedtls_ctr_drbg_free),
+    ESP_ELFSYM_EXPORT(mbedtls_ctr_drbg_seed),
+    ESP_ELFSYM_EXPORT(mbedtls_ctr_drbg_random),
+    // Entropy
+    ESP_ELFSYM_EXPORT(mbedtls_entropy_init),
+    ESP_ELFSYM_EXPORT(mbedtls_entropy_free),
+    ESP_ELFSYM_EXPORT(mbedtls_entropy_func),
+    // Cipher
+    ESP_ELFSYM_EXPORT(mbedtls_cipher_init),
+    ESP_ELFSYM_EXPORT(mbedtls_cipher_free),
+    ESP_ELFSYM_EXPORT(mbedtls_cipher_setup),
+    ESP_ELFSYM_EXPORT(mbedtls_cipher_setkey),
+    ESP_ELFSYM_EXPORT(mbedtls_cipher_set_iv),
+    ESP_ELFSYM_EXPORT(mbedtls_cipher_reset),
+    ESP_ELFSYM_EXPORT(mbedtls_cipher_update),
+    ESP_ELFSYM_EXPORT(mbedtls_cipher_finish),
+    ESP_ELFSYM_EXPORT(mbedtls_cipher_get_block_size),
+    ESP_ELFSYM_EXPORT(mbedtls_cipher_info_from_type),
+    // Message digest / HMAC
+    ESP_ELFSYM_EXPORT(mbedtls_md),
+    ESP_ELFSYM_EXPORT(mbedtls_md_init),
+    ESP_ELFSYM_EXPORT(mbedtls_md_free),
+    ESP_ELFSYM_EXPORT(mbedtls_md_setup),
+    ESP_ELFSYM_EXPORT(mbedtls_md_starts),
+    ESP_ELFSYM_EXPORT(mbedtls_md_update),
+    ESP_ELFSYM_EXPORT(mbedtls_md_finish),
+    ESP_ELFSYM_EXPORT(mbedtls_md_hmac_starts),
+    ESP_ELFSYM_EXPORT(mbedtls_md_hmac_update),
+    ESP_ELFSYM_EXPORT(mbedtls_md_hmac_finish),
+    ESP_ELFSYM_EXPORT(mbedtls_md_info_from_type),
+    // Bignum (MPI)
+    ESP_ELFSYM_EXPORT(mbedtls_mpi_init),
+    ESP_ELFSYM_EXPORT(mbedtls_mpi_free),
+    ESP_ELFSYM_EXPORT(mbedtls_mpi_read_binary),
+    ESP_ELFSYM_EXPORT(mbedtls_mpi_write_binary),
+    ESP_ELFSYM_EXPORT(mbedtls_mpi_size),
+    ESP_ELFSYM_EXPORT(mbedtls_mpi_bitlen),
+    ESP_ELFSYM_EXPORT(mbedtls_mpi_lset),
+    ESP_ELFSYM_EXPORT(mbedtls_mpi_set_bit),
+    ESP_ELFSYM_EXPORT(mbedtls_mpi_fill_random),
+    ESP_ELFSYM_EXPORT(mbedtls_mpi_exp_mod),
+    // RSA
+    ESP_ELFSYM_EXPORT(mbedtls_rsa_init),
+    ESP_ELFSYM_EXPORT(mbedtls_rsa_free),
+    ESP_ELFSYM_EXPORT(mbedtls_rsa_copy),
+    ESP_ELFSYM_EXPORT(mbedtls_rsa_get_len),
+    ESP_ELFSYM_EXPORT(mbedtls_rsa_check_pubkey),
+    ESP_ELFSYM_EXPORT(mbedtls_rsa_check_privkey),
+    ESP_ELFSYM_EXPORT(mbedtls_rsa_pkcs1_sign),
+    ESP_ELFSYM_EXPORT(mbedtls_rsa_pkcs1_verify),
+    // Public key abstraction
+    ESP_ELFSYM_EXPORT(mbedtls_pk_init),
+    ESP_ELFSYM_EXPORT(mbedtls_pk_free),
+    ESP_ELFSYM_EXPORT(mbedtls_pk_get_type),
+    ESP_ELFSYM_EXPORT(mbedtls_pk_parse_key),
+    ESP_ELFSYM_EXPORT(mbedtls_pk_parse_keyfile),
+    // ECP (elliptic curves)
+    ESP_ELFSYM_EXPORT(mbedtls_ecp_group_load),
+    ESP_ELFSYM_EXPORT(mbedtls_ecp_point_init),
+    ESP_ELFSYM_EXPORT(mbedtls_ecp_point_free),
+    ESP_ELFSYM_EXPORT(mbedtls_ecp_point_read_binary),
+    ESP_ELFSYM_EXPORT(mbedtls_ecp_point_write_binary),
+    ESP_ELFSYM_EXPORT(mbedtls_ecp_check_pubkey),
+    ESP_ELFSYM_EXPORT(mbedtls_ecp_check_privkey),
+    ESP_ELFSYM_EXPORT(mbedtls_ecp_mul),
+    // ECDSA
+    ESP_ELFSYM_EXPORT(mbedtls_ecdsa_init),
+    ESP_ELFSYM_EXPORT(mbedtls_ecdsa_free),
+    ESP_ELFSYM_EXPORT(mbedtls_ecdsa_genkey),
+    ESP_ELFSYM_EXPORT(mbedtls_ecdsa_from_keypair),
+    ESP_ELFSYM_EXPORT(mbedtls_ecdsa_sign),
+    ESP_ELFSYM_EXPORT(mbedtls_ecdsa_verify),
+    // ECDH
+    ESP_ELFSYM_EXPORT(mbedtls_ecdh_compute_shared),
+    // Error strings
+    ESP_ELFSYM_EXPORT(mbedtls_strerror),
+    // delimiter
+    ESP_ELFSYM_END
+};

TactilityC/Source/tt_init.cpp

@@ -23,6 +23,7 @@
 #include "symbols/esp_http_client.h"
 #include "symbols/freertos.h"
 #include "symbols/gcc_soft_float.h"
+#include "symbols/mbedtls.h"
 #include "symbols/pthread.h"
 #include "symbols/stl.h"
 #include "symbols/string.h"
@@ -40,8 +41,12 @@
 #include <esp_netif.h>
 #include <fcntl.h>
 #include <lwip/sockets.h>
+#include <lwip/netdb.h>
+#include <lwip/inet.h>
+#include <sys/select.h>
 #include <locale.h>
 #include <setjmp.h>
+#include <strings.h>
 #include <sys/errno.h>
 #include <sys/stat.h>
 #include <sys/unistd.h>
@@ -80,10 +85,13 @@ const esp_elfsym main_symbols[] {
     ESP_ELFSYM_EXPORT(close),
     ESP_ELFSYM_EXPORT(rmdir),
     ESP_ELFSYM_EXPORT(unlink),
+    // strings.h
+    ESP_ELFSYM_EXPORT(explicit_bzero),
     // time.h
     ESP_ELFSYM_EXPORT(clock_gettime),
     ESP_ELFSYM_EXPORT(strftime),
     ESP_ELFSYM_EXPORT(time),
+    ESP_ELFSYM_EXPORT(difftime),
     ESP_ELFSYM_EXPORT(localtime_r),
     ESP_ELFSYM_EXPORT(localtime),
     // esp_sntp.h
@@ -364,6 +372,12 @@ const esp_elfsym main_symbols[] {
     ESP_ELFSYM_EXPORT(lwip_accept),
     ESP_ELFSYM_EXPORT(lwip_getsockname),
     ESP_ELFSYM_EXPORT(lwip_send),
+    ESP_ELFSYM_EXPORT(lwip_connect),
+    ESP_ELFSYM_EXPORT(lwip_select),
+    ESP_ELFSYM_EXPORT(lwip_gethostbyname),
+    ESP_ELFSYM_EXPORT(ipaddr_addr),
+    // POSIX socket names (VFS wrappers used when apps include <sys/socket.h>)
+    ESP_ELFSYM_EXPORT(select),
     // sys/stat.h
     ESP_ELFSYM_EXPORT(stat),
     ESP_ELFSYM_EXPORT(mkdir),
@@ -418,6 +432,7 @@ uintptr_t tt_symbol_resolver(const char* symbolName) {
         string_symbols,
         esp_event_symbols,
         esp_http_client_symbols,
+        mbedtls_symbols,
     };
 
     for (const auto* symbols : all_symbols) {