mirror of https://github.com/xemu-project/xemu.git
tpm_emulator: Translate TPM error codes to strings
Implement a function to translate TPM error codes to strings so that at least the most common error codes can be translated to human readable strings. Signed-off-by: Stefan Berger <stefanb@linux.ibm.com> Reviewed-by: Marc-André Lureau <marcandre.lureau@redhat.com>
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@ -82,6 +82,40 @@ typedef struct TPMEmulator {
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TPMBlobBuffers state_blobs;
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TPMBlobBuffers state_blobs;
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} TPMEmulator;
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} TPMEmulator;
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struct tpm_error {
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uint32_t tpm_result;
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const char *string;
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};
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static const struct tpm_error tpm_errors[] = {
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/* TPM 1.2 error codes */
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{ TPM_BAD_PARAMETER , "a parameter is bad" },
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{ TPM_FAIL , "operation failed" },
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{ TPM_KEYNOTFOUND , "key could not be found" },
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{ TPM_BAD_PARAM_SIZE , "bad parameter size"},
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{ TPM_ENCRYPT_ERROR , "encryption error" },
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{ TPM_DECRYPT_ERROR , "decryption error" },
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{ TPM_BAD_KEY_PROPERTY, "bad key property" },
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{ TPM_BAD_MODE , "bad (encryption) mode" },
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{ TPM_BAD_VERSION , "bad version identifier" },
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{ TPM_BAD_LOCALITY , "bad locality" },
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/* TPM 2 error codes */
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{ TPM_RC_FAILURE , "operation failed" },
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{ TPM_RC_LOCALITY , "bad locality" },
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{ TPM_RC_INSUFFICIENT, "insufficient amount of data" },
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};
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static const char *tpm_emulator_strerror(uint32_t tpm_result)
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{
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size_t i;
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for (i = 0; i < ARRAY_SIZE(tpm_errors); i++) {
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if (tpm_errors[i].tpm_result == tpm_result) {
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return tpm_errors[i].string;
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}
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}
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return "";
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}
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static int tpm_emulator_ctrlcmd(TPMEmulator *tpm, unsigned long cmd, void *msg,
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static int tpm_emulator_ctrlcmd(TPMEmulator *tpm, unsigned long cmd, void *msg,
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size_t msg_len_in, size_t msg_len_out)
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size_t msg_len_in, size_t msg_len_out)
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@ -264,7 +298,8 @@ static int tpm_emulator_stop_tpm(TPMBackend *tb)
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res = be32_to_cpu(res);
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res = be32_to_cpu(res);
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if (res) {
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if (res) {
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error_report("tpm-emulator: TPM result for CMD_STOP: 0x%x", res);
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error_report("tpm-emulator: TPM result for CMD_STOP: 0x%x %s", res,
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tpm_emulator_strerror(res));
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return -1;
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return -1;
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}
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}
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@ -293,8 +328,9 @@ static int tpm_emulator_set_buffer_size(TPMBackend *tb,
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psbs.u.resp.tpm_result = be32_to_cpu(psbs.u.resp.tpm_result);
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psbs.u.resp.tpm_result = be32_to_cpu(psbs.u.resp.tpm_result);
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if (psbs.u.resp.tpm_result != 0) {
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if (psbs.u.resp.tpm_result != 0) {
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error_report("tpm-emulator: TPM result for set buffer size : 0x%x",
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error_report("tpm-emulator: TPM result for set buffer size : 0x%x %s",
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psbs.u.resp.tpm_result);
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psbs.u.resp.tpm_result,
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tpm_emulator_strerror(psbs.u.resp.tpm_result));
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return -1;
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return -1;
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}
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}
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@ -339,7 +375,8 @@ static int tpm_emulator_startup_tpm_resume(TPMBackend *tb, size_t buffersize,
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res = be32_to_cpu(init.u.resp.tpm_result);
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res = be32_to_cpu(init.u.resp.tpm_result);
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if (res) {
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if (res) {
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error_report("tpm-emulator: TPM result for CMD_INIT: 0x%x", res);
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error_report("tpm-emulator: TPM result for CMD_INIT: 0x%x %s", res,
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tpm_emulator_strerror(res));
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goto err_exit;
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goto err_exit;
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}
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}
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return 0;
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return 0;
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@ -399,8 +436,9 @@ static int tpm_emulator_reset_tpm_established_flag(TPMBackend *tb,
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res = be32_to_cpu(reset_est.u.resp.tpm_result);
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res = be32_to_cpu(reset_est.u.resp.tpm_result);
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if (res) {
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if (res) {
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error_report("tpm-emulator: TPM result for rest establixhed flag: 0x%x",
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error_report(
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res);
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"tpm-emulator: TPM result for rest established flag: 0x%x %s",
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res, tpm_emulator_strerror(res));
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return -1;
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return -1;
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}
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}
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@ -638,7 +676,8 @@ static int tpm_emulator_get_state_blob(TPMEmulator *tpm_emu,
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res = be32_to_cpu(pgs.u.resp.tpm_result);
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res = be32_to_cpu(pgs.u.resp.tpm_result);
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if (res != 0 && (res & 0x800) == 0) {
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if (res != 0 && (res & 0x800) == 0) {
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error_report("tpm-emulator: Getting the stateblob (type %d) failed "
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error_report("tpm-emulator: Getting the stateblob (type %d) failed "
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"with a TPM error 0x%x", type, res);
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"with a TPM error 0x%x %s", type, res,
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tpm_emulator_strerror(res));
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return -1;
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return -1;
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}
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}
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@ -758,7 +797,8 @@ static int tpm_emulator_set_state_blob(TPMEmulator *tpm_emu,
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tpm_result = be32_to_cpu(pss.u.resp.tpm_result);
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tpm_result = be32_to_cpu(pss.u.resp.tpm_result);
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if (tpm_result != 0) {
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if (tpm_result != 0) {
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error_report("tpm-emulator: Setting the stateblob (type %d) failed "
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error_report("tpm-emulator: Setting the stateblob (type %d) failed "
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"with a TPM error 0x%x", type, tpm_result);
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"with a TPM error 0x%x %s", type, tpm_result,
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tpm_emulator_strerror(tpm_result));
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return -1;
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return -1;
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}
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}
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@ -888,8 +928,8 @@ static void tpm_emulator_shutdown(TPMEmulator *tpm_emu)
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error_report("tpm-emulator: Could not cleanly shutdown the TPM: %s",
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error_report("tpm-emulator: Could not cleanly shutdown the TPM: %s",
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strerror(errno));
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strerror(errno));
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} else if (res != 0) {
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} else if (res != 0) {
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error_report("tpm-emulator: TPM result for sutdown: 0x%x",
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error_report("tpm-emulator: TPM result for shutdown: 0x%x %s",
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be32_to_cpu(res));
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be32_to_cpu(res), tpm_emulator_strerror(be32_to_cpu(res)));
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}
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}
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}
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}
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@ -39,7 +39,16 @@ struct tpm_resp_hdr {
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#define TPM_TAG_RSP_AUTH1_COMMAND 0xc5
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#define TPM_TAG_RSP_AUTH1_COMMAND 0xc5
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#define TPM_TAG_RSP_AUTH2_COMMAND 0xc6
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#define TPM_TAG_RSP_AUTH2_COMMAND 0xc6
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#define TPM_BAD_PARAMETER 3
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#define TPM_FAIL 9
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#define TPM_FAIL 9
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#define TPM_KEYNOTFOUND 13
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#define TPM_BAD_PARAM_SIZE 25
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#define TPM_ENCRYPT_ERROR 32
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#define TPM_DECRYPT_ERROR 33
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#define TPM_BAD_KEY_PROPERTY 40
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#define TPM_BAD_MODE 44
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#define TPM_BAD_VERSION 46
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#define TPM_BAD_LOCALITY 61
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#define TPM_ORD_ContinueSelfTest 0x53
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#define TPM_ORD_ContinueSelfTest 0x53
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#define TPM_ORD_GetTicks 0xf1
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#define TPM_ORD_GetTicks 0xf1
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@ -59,4 +68,8 @@ struct tpm_resp_hdr {
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#define TPM2_PT_MAX_COMMAND_SIZE 0x11e
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#define TPM2_PT_MAX_COMMAND_SIZE 0x11e
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#define TPM_RC_INSUFFICIENT 0x9a
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#define TPM_RC_FAILURE 0x101
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#define TPM_RC_LOCALITY 0x907
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#endif /* TPM_TPM_INT_H */
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#endif /* TPM_TPM_INT_H */
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