diff options
Diffstat (limited to 'TPM2-Plugin/lib/tpm2_plugin_api.c')
| -rw-r--r-- | TPM2-Plugin/lib/tpm2_plugin_api.c | 176 |
1 files changed, 176 insertions, 0 deletions
diff --git a/TPM2-Plugin/lib/tpm2_plugin_api.c b/TPM2-Plugin/lib/tpm2_plugin_api.c new file mode 100644 index 0000000..adc8cf7 --- /dev/null +++ b/TPM2-Plugin/lib/tpm2_plugin_api.c @@ -0,0 +1,176 @@ +//**********************************************************************; +// Copyright (c) 2017, Intel Corporation +// All rights reserved. +// +// Redistribution and use in source and binary forms, with or without +// modification, are permitted provided that the following conditions are met: +// +// 1. Redistributions of source code must retain the above copyright notice, +// this list of conditions and the following disclaimer. +// +// 2. Redistributions in binary form must reproduce the above copyright notice, +// this list of conditions and the following disclaimer in the documentation +// and/or other materials provided with the distribution. +// +// 3. Neither the name of Intel Corporation nor the names of its contributors +// may be used to endorse or promote products derived from this software without +// specific prior written permission. +// +// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" +// AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE +// IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE +// ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE +// LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR +// CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF +// SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS +// INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN +// CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) +// ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF +// THE POSSIBILITY OF SUCH DAMAGE. +//**********************************************************************; + +#include <sapi/tpm20.h> +#include <stdbool.h> +#include <unistd.h> +#include "tpm2_plugin_api.h" +#include "log.h" +#include "tpm2_tcti_ldr.h" + + +const char *tcti_path="libtcti-device.so"; + +static void tcti_teardown (TSS2_TCTI_CONTEXT *tcti_context) +{ + + Tss2_Tcti_Finalize (tcti_context); + free (tcti_context); +} + +static void sapi_teardown (TSS2_SYS_CONTEXT *sapi_context) +{ + + if (sapi_context == NULL) + return; + Tss2_Sys_Finalize (sapi_context); + free (sapi_context); +} + +static void sapi_teardown_full (TSS2_SYS_CONTEXT *sapi_context) +{ + + TSS2_TCTI_CONTEXT *tcti_context = NULL; + TSS2_RC rc; + + rc = Tss2_Sys_GetTctiContext (sapi_context, &tcti_context); + if (rc != TPM2_RC_SUCCESS) + return; + sapi_teardown (sapi_context); + tcti_teardown (tcti_context); +} + +static TSS2_SYS_CONTEXT* sapi_ctx_init(TSS2_TCTI_CONTEXT *tcti_ctx) +{ + + TSS2_ABI_VERSION abi_version = { + .tssCreator = TSSWG_INTEROP, + .tssFamily = TSS_SAPI_FIRST_FAMILY, + .tssLevel = TSS_SAPI_FIRST_LEVEL, + .tssVersion = TSS_SAPI_FIRST_VERSION, + }; + + size_t size = Tss2_Sys_GetContextSize(0); + TSS2_SYS_CONTEXT *sapi_ctx = (TSS2_SYS_CONTEXT*) calloc(1, size); + if (sapi_ctx == NULL) { + LOG_ERR("Failed to allocate 0x%zx bytes for the SAPI context\n", + size); + return NULL; + } + + TSS2_RC rval = Tss2_Sys_Initialize(sapi_ctx, size, tcti_ctx, &abi_version); + if (rval != TPM2_RC_SUCCESS) { + LOG_PERR(Tss2_Sys_Initialize, rval); + free(sapi_ctx); + return NULL; + } + + return sapi_ctx; +} +int tpm2_rsa_sign_init( + unsigned long mechanish, + void *param, + size_t len, + void *ctx) +{ + printf("executing tpm2_rsa_sign_init in tpm2_plugin... \n"); + return 0; +} + +int tpm2_tool_sign(TSS2_SYS_CONTEXT *sapi_context) +{ + return 0; +} + +int tpm2_rsa_sign( + void *ctx, + unsigned char *msg, + int msg_len, + unsigned char *sig, + int *sig_len) +{ + int ret = 1; + TSS2_TCTI_CONTEXT *tcti; + tcti = tpm2_tcti_ldr_load(tcti_path, NULL); + if (!tcti) { + LOG_ERR("Could not load tcti, got: \"%s\"", tcti_path); + return -1; + } + + TSS2_SYS_CONTEXT *sapi_context = NULL; + if (tcti) { + sapi_context = sapi_ctx_init(tcti); + if (!sapi_context) { + goto free_tcti; + } + } + + ret = tpm2_tool_sign(sapi_context); + if (ret != 0) { + LOG_ERR("Unable to run tpm2_tool_sign"); + sapi_teardown_full(sapi_context); + +free_tcti: + tpm2_tcti_ldr_unload(); + return ret; +} +} + +int tpm2_rsa_create_object( + unsigned long appHandle, + //DhsmWPKRSAFormat* wpk, + void *wpk, + unsigned char* swk, + int swk_len, + unsigned char* iv, + int iv_len, + int tag_len, + void **cb_object) +{ + return 0; +} + +int tpm2_rsa_delete_object(void *cb_object) +{ + return 0; +} + +int tpm2_import_object(unsigned long appHandle, + unsigned char* tlvbuffer, + int buflen, + unsigned char* iv, + int iv_len, + unsigned char* tpm_pwd, + int tpm_pwd_len) + +{ + return 0; +} |