libmbedtls: add mbedtls_mpi_init_mempool()
Adds mbedtls_mpi_init_mempool() which initializes a mbedtls_mpi struct
to use the mempool mbedtls_mpi_mempool if configured for memory
allocation. All local memory allocation are changed to use
mbedtls_mpi_init_mempool() instead of mbedtls_mpi_init(). This will give
a stack like alloc/free pattern for which the mempool is optimized.
Acked-by: Jerome Forissier <jerome.forissier@linaro.org>
Signed-off-by: Jens Wiklander <jens.wiklander@linaro.org>
[jf: rebased onto mbedtls-2.22.0]
Signed-off-by: Jerome Forissier <jerome@forissier.org>
[jf: rebased onto mbedtls-2.27.0, fold fixup commit:
2df910b2df8b ("libmbedtls: mbedtls_mpi_shrink(): fix possible unwanted truncation"),
adjust macro ECP_MPI_INIT]
Signed-off-by: Jerome Forissier <jerome@forissier.org>
diff --git a/lib/libmbedtls/mbedtls/library/ecp.c b/lib/libmbedtls/mbedtls/library/ecp.c
index ca49f99..9baafc3 100644
--- a/lib/libmbedtls/mbedtls/library/ecp.c
+++ b/lib/libmbedtls/mbedtls/library/ecp.c
@@ -2937,7 +2937,7 @@
#if defined(MBEDTLS_ECP_MONTGOMERY_ENABLED)
#if defined(MBEDTLS_ECP_DP_CURVE25519_ENABLED)
-#define ECP_MPI_INIT(s, n, p) {s, (n), (mbedtls_mpi_uint *)(p)}
+#define ECP_MPI_INIT(s, n, p) {s, 0, (n), (mbedtls_mpi_uint *)(p)}
#define ECP_MPI_INIT_ARRAY(x) \
ECP_MPI_INIT(1, sizeof(x) / sizeof(mbedtls_mpi_uint), x)
/*