The final enclave address range (referred as ELRANGE in Intel SDM) calculation is a reminiscent of signing tool being a separate command-line utility, and sigstruct being produced during the compilation. Given that nowadays the sigstruct is calculated on-fly, use the readily calculated encl->encl_size instead, in order to remove duplicate code.

Signed-off-by: Jarkko Sakkinen jarkko@kernel.org --- tools/testing/selftests/sgx/load.c | 5 +++-- tools/testing/selftests/sgx/main.h | 1 - tools/testing/selftests/sgx/sigstruct.c | 8 ++------ 3 files changed, 5 insertions(+), 9 deletions(-)

diff --git a/tools/testing/selftests/sgx/load.c b/tools/testing/selftests/sgx/load.c index 94bdeac1cf04..3b4e2422fb09 100644 --- a/tools/testing/selftests/sgx/load.c +++ b/tools/testing/selftests/sgx/load.c @@ -174,6 +174,7 @@ uint64_t encl_get_entry(struct encl *encl, const char *symbol) bool encl_load(const char *path, struct encl *encl, unsigned long heap_size) { const char device_path[] = "/dev/sgx_enclave"; + unsigned long contents_size; struct encl_segment *seg; Elf64_Phdr *phdr_tbl; off_t src_offset; @@ -298,9 +299,9 @@ bool encl_load(const char *path, struct encl *encl, unsigned long heap_size) if (seg->src == MAP_FAILED) goto err;

- encl->src_size = encl->segment_tbl[j].offset + encl->segment_tbl[j].size; + contents_size = encl->segment_tbl[j].offset + encl->segment_tbl[j].size;

- for (encl->encl_size = 4096; encl->encl_size < encl->src_size; ) + for (encl->encl_size = 4096; encl->encl_size < contents_size; ) encl->encl_size <<= 1;

return true; diff --git a/tools/testing/selftests/sgx/main.h b/tools/testing/selftests/sgx/main.h index 82b33f8db048..9c1bc0d9b43c 100644 --- a/tools/testing/selftests/sgx/main.h +++ b/tools/testing/selftests/sgx/main.h @@ -20,7 +20,6 @@ struct encl { void *bin; off_t bin_size; void *src; - size_t src_size; size_t encl_size; off_t encl_base; unsigned int nr_segments; diff --git a/tools/testing/selftests/sgx/sigstruct.c b/tools/testing/selftests/sgx/sigstruct.c index 50c5ab1aa6fa..0c7678d2594b 100644 --- a/tools/testing/selftests/sgx/sigstruct.c +++ b/tools/testing/selftests/sgx/sigstruct.c @@ -212,13 +212,9 @@ struct mrecreate { } __attribute__((__packed__));

-static bool mrenclave_ecreate(EVP_MD_CTX *ctx, uint64_t blob_size) +static bool mrenclave_ecreate(EVP_MD_CTX *ctx, uint64_t encl_size) { struct mrecreate mrecreate; - uint64_t encl_size; - - for (encl_size = 0x1000; encl_size < blob_size; ) - encl_size <<= 1;

memset(&mrecreate, 0, sizeof(mrecreate)); mrecreate.tag = MRECREATE; @@ -343,7 +339,7 @@ bool encl_measure(struct encl *encl) if (!ctx) goto err;

- if (!mrenclave_ecreate(ctx, encl->src_size)) + if (!mrenclave_ecreate(ctx, encl->encl_size)) goto err;

for (i = 0; i < encl->nr_segments; i++) {