Add Swap feature

2020-06-29 15:43:02 +02:00
parent 2027fecffa
commit 9d4dfbe1bf
31 changed files with 650 additions and 312 deletions
--- a/src/handle_check_address.c
+++ b/src/handle_check_address.c
@@ -0,0 +1,70 @@
+#include "handle_check_address.h"
+#include "os.h"
+#include "shared_context.h"
+#include "ethUtils.h"
+#include "string.h"
+
+#define ZERO(x) os_memset(x, 0, sizeof(x))
+
+void handle_check_address(check_address_parameters_t* params, chain_config_t* chain_config) {
+    PRINTF("Params on the address %d\n",(unsigned int)params);
+    PRINTF("Address to check %s\n",params->address_to_check);
+    PRINTF("Inside handle_check_address\n");
+    params->result = 0;
+    if (params->address_to_check == 0) {
+        PRINTF("Address to check == 0\n");
+        return;
+    }
+
+    uint8_t i;
+    uint8_t *bip32_path_ptr = params->address_parameters;
+    uint8_t bip32PathLength = *(bip32_path_ptr++);
+    cx_sha3_t local_sha3;
+
+    // Common memory is used for locals that are not used concurrently
+    union group1
+    {
+        uint32_t bip32Path[MAX_BIP32_PATH];
+        cx_ecfp_private_key_t privateKey;
+        char address[51];
+    } locals_union1;
+    union group2
+    {
+        uint8_t privateKeyData[32];
+        cx_ecfp_public_key_t publicKey;
+    } locals_union2;
+    
+
+    if ((bip32PathLength < 0x01) ||
+        (bip32PathLength > MAX_BIP32_PATH) ||
+        (bip32PathLength*4 != params->address_parameters_length - 1)) {
+        PRINTF("Invalid path\n");
+        return;
+    }
+    for (i = 0; i < bip32PathLength; i++) {
+        locals_union1.bip32Path[i] = U4BE(bip32_path_ptr, 0);
+        bip32_path_ptr += 4;
+    }
+    os_perso_derive_node_bip32(CX_CURVE_256K1, locals_union1.bip32Path, bip32PathLength, locals_union2.privateKeyData, NULL);
+    ZERO(&locals_union1);
+    cx_ecfp_init_private_key(CX_CURVE_256K1, locals_union2.privateKeyData, 32, &locals_union1.privateKey);
+    ZERO(&locals_union2);
+    cx_ecfp_generate_pair(CX_CURVE_256K1, &locals_union2.publicKey, &locals_union1.privateKey, 1);
+    ZERO(&locals_union1);
+    getEthAddressStringFromKey(&locals_union2.publicKey, (uint8_t*)locals_union1.address, &local_sha3, chain_config);
+    ZERO(&locals_union2);
+
+    uint8_t offset_0x = 0;
+    if(memcmp(params->address_to_check, "0x", 2) == 0){
+        offset_0x = 2;
+    }
+
+    if ((strlen(locals_union1.address) != strlen(params->address_to_check + offset_0x)) ||
+        os_memcmp(locals_union1.address, params->address_to_check + offset_0x, strlen(locals_union1.address)) != 0) {
+            os_memcpy(params->address_to_check, locals_union1.address, 45);
+        PRINTF("Addresses doesn't match\n");
+        return;
+    }
+    PRINTF("Addresses  match\n");
+    params->result = 1;
+}