diff options
Diffstat (limited to 'src/lib/tpm2_tlcl.c')
| -rw-r--r-- | src/lib/tpm2_tlcl.c | 23 |
1 files changed, 14 insertions, 9 deletions
diff --git a/src/lib/tpm2_tlcl.c b/src/lib/tpm2_tlcl.c index 1118afb1df..754f835719 100644 --- a/src/lib/tpm2_tlcl.c +++ b/src/lib/tpm2_tlcl.c @@ -23,29 +23,34 @@ static void *tpm_process_command(TPM_CC command, void *command_body) { - ssize_t out_size; + struct obuf ob; + struct ibuf ib; + size_t out_size; size_t in_size; + const uint8_t *sendb; /* Command/response buffer. */ static uint8_t cr_buffer[TPM_BUFFER_SIZE] CAR_GLOBAL; uint8_t *cr_buffer_ptr = car_get_var_ptr(cr_buffer); - out_size = tpm_marshal_command(command, command_body, - cr_buffer_ptr, sizeof(cr_buffer)); - if (out_size < 0) { - printk(BIOS_ERR, "command %#x, cr size %zd\n", - command, out_size); + obuf_init(&ob, cr_buffer_ptr, sizeof(cr_buffer)); + + if (tpm_marshal_command(command, command_body, &ob) < 0) { + printk(BIOS_ERR, "command %#x\n", command); return NULL; } + sendb = obuf_contents(&ob, &out_size); + in_size = sizeof(cr_buffer); - if (tis_sendrecv(cr_buffer_ptr, out_size, - cr_buffer_ptr, &in_size)) { + if (tis_sendrecv(sendb, out_size, cr_buffer_ptr, &in_size)) { printk(BIOS_ERR, "tpm transaction failed\n"); return NULL; } - return tpm_unmarshal_response(command, cr_buffer_ptr, in_size); + ibuf_init(&ib, cr_buffer_ptr, in_size); + + return tpm_unmarshal_response(command, &ib); } |