diff --git a/src/shared_context.h b/src/shared_context.h index 54c7566..7d3d86b 100644 --- a/src/shared_context.h +++ b/src/shared_context.h @@ -50,7 +50,6 @@ typedef enum starkQuantumType_e { typedef struct tokenContext_t { char pluginName[PLUGIN_ID_LENGTH]; - uint8_t pluginStatus; uint8_t data[INT256_LENGTH]; uint16_t fieldIndex; @@ -65,9 +64,13 @@ typedef struct tokenContext_t { uint8_t contractAddress[ADDRESS_LENGTH]; uint8_t methodSelector[SELECTOR_LENGTH]; }; - uint8_t pluginContext[5 * INT256_LENGTH]; + // This needs to be strictly 4 bytes aligned since pointers to it will be casted as + // plugin context struct pointers (structs that contain up to 4 bytes wide elements) + uint8_t pluginContext[5 * INT256_LENGTH] __attribute__((aligned(4))); }; + uint8_t pluginStatus; + #ifdef HAVE_STARKWARE uint8_t quantum[32]; uint8_t mintingBlob[32]; @@ -77,6 +80,8 @@ typedef struct tokenContext_t { } tokenContext_t; +_Static_assert((offsetof(tokenContext_t, pluginContext) % 4) == 0, "Plugin context not aligned"); + typedef struct publicKeyContext_t { cx_ecfp_public_key_t publicKey; char address[41];