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Now checks the EIP712Domain chain ID

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This commit is contained in:
Alexandre Paillier
2022-06-27 17:01:07 +02:00
parent 1a4149e836
commit 032d74e301
1 changed files with 24 additions and 7 deletions
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31
src_features/signMessageEIP712/field_hash.c
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@@ -11,6 +11,7 @@
#include "ui_logic.h" #include "ui_logic.h"
#include "ethUtils.h" // KECCAK256_HASH_BYTESIZE #include "ethUtils.h" // KECCAK256_HASH_BYTESIZE
#include "context.h" // contract_addr #include "context.h" // contract_addr
#include "utils.h" // u64_from_BE
static s_field_hashing *fh = NULL; static s_field_hashing *fh = NULL;
@@ -160,16 +161,32 @@ bool field_hash(const uint8_t *data,
// deallocate it // deallocate it
mem_dealloc(len); mem_dealloc(len);
// copy contract address into context if (path_get_root_type() == ROOT_DOMAIN)
if ((path_get_root_type() == ROOT_DOMAIN)
&& (strncmp(key, "verifyingContract", keylen) == 0))
{ {
if (data_length != sizeof(eip712_context->contract_addr)) // copy contract address into context
if (strncmp(key, "verifyingContract", keylen) == 0)
{ {
PRINTF("Unexpected verifyingContract length!\n"); if (data_length != sizeof(eip712_context->contract_addr))
return false; {
PRINTF("Unexpected verifyingContract length!\n");
return false;
}
memcpy(eip712_context->contract_addr, data, data_length);
}
else if (strncmp(key, "chainId", keylen) == 0)
{
uint64_t chainId = u64_from_BE(data, data_length);
if (chainId != chainConfig->chainId)
{
PRINTF("EIP712Domain chain ID mismatch, expected 0x%.*h, got 0x%.*h !\n",
sizeof(chainConfig->chainId),
&chainConfig->chainId,
sizeof(chainId),
&chainId);
return false;
}
} }
memcpy(eip712_context->contract_addr, data, data_length);
} }
path_advance(); path_advance();
fh->state = FHS_IDLE; fh->state = FHS_IDLE;