34 static void tpm2_buf_append_auth(struct tpm_buf *buf, u32 session_handle,  in tpm2_buf_append_auth()  argument
39 	tpm_buf_append_u32(buf, 9 + nonce_len + hmac_len);  in tpm2_buf_append_auth()
40 	tpm_buf_append_u32(buf, session_handle);  in tpm2_buf_append_auth()
41 	tpm_buf_append_u16(buf, nonce_len);  in tpm2_buf_append_auth()
44 		tpm_buf_append(buf, nonce, nonce_len);  in tpm2_buf_append_auth()
46 	tpm_buf_append_u8(buf, attributes);  in tpm2_buf_append_auth()
47 	tpm_buf_append_u16(buf, hmac_len);  in tpm2_buf_append_auth()
50 		tpm_buf_append(buf, hmac, hmac_len);  in tpm2_buf_append_auth()
67 	struct tpm_buf buf;  in tpm2_seal_trusted()  local
82 	rc = tpm_buf_init(&buf, TPM2_ST_SESSIONS, TPM2_CC_CREATE);  in tpm2_seal_trusted()
86 	tpm_buf_append_u32(&buf, options->keyhandle);  in tpm2_seal_trusted()
87 	tpm2_buf_append_auth(&buf, TPM2_RS_PW,  in tpm2_seal_trusted()
94 	tpm_buf_append_u16(&buf, 4 + TPM_DIGEST_SIZE + payload->key_len + 1);  in tpm2_seal_trusted()
96 	tpm_buf_append_u16(&buf, TPM_DIGEST_SIZE);  in tpm2_seal_trusted()
97 	tpm_buf_append(&buf, options->blobauth, TPM_DIGEST_SIZE);  in tpm2_seal_trusted()
98 	tpm_buf_append_u16(&buf, payload->key_len + 1);  in tpm2_seal_trusted()
99 	tpm_buf_append(&buf, payload->key, payload->key_len);  in tpm2_seal_trusted()
100 	tpm_buf_append_u8(&buf, payload->migratable);  in tpm2_seal_trusted()
103 	tpm_buf_append_u16(&buf, 14 + options->policydigest_len);  in tpm2_seal_trusted()
104 	tpm_buf_append_u16(&buf, TPM_ALG_KEYEDHASH);  in tpm2_seal_trusted()
105 	tpm_buf_append_u16(&buf, hash);  in tpm2_seal_trusted()
109 		tpm_buf_append_u32(&buf, 0);  in tpm2_seal_trusted()
110 		tpm_buf_append_u16(&buf, options->policydigest_len);  in tpm2_seal_trusted()
111 		tpm_buf_append(&buf, options->policydigest,  in tpm2_seal_trusted()
114 		tpm_buf_append_u32(&buf, TPM2_OA_USER_WITH_AUTH);  in tpm2_seal_trusted()
115 		tpm_buf_append_u16(&buf, 0);  in tpm2_seal_trusted()
119 	tpm_buf_append_u16(&buf, TPM_ALG_NULL);  in tpm2_seal_trusted()
120 	tpm_buf_append_u16(&buf, 0);  in tpm2_seal_trusted()
123 	tpm_buf_append_u16(&buf, 0);  in tpm2_seal_trusted()
126 	tpm_buf_append_u32(&buf, 0);  in tpm2_seal_trusted()
128 	if (buf.flags & TPM_BUF_OVERFLOW) {  in tpm2_seal_trusted()
133 	rc = tpm_send(chip, buf.data, tpm_buf_length(&buf));  in tpm2_seal_trusted()
137 	blob_len = be32_to_cpup((__be32 *) &buf.data[TPM_HEADER_SIZE]);  in tpm2_seal_trusted()
142 	if (tpm_buf_length(&buf) < TPM_HEADER_SIZE + 4 + blob_len) {  in tpm2_seal_trusted()
147 	memcpy(payload->blob, &buf.data[TPM_HEADER_SIZE + 4], blob_len);  in tpm2_seal_trusted()
151 	tpm_buf_destroy(&buf);  in tpm2_seal_trusted()
181 	struct tpm_buf buf;  in tpm2_load_cmd()  local
196 	rc = tpm_buf_init(&buf, TPM2_ST_SESSIONS, TPM2_CC_LOAD);  in tpm2_load_cmd()
200 	tpm_buf_append_u32(&buf, options->keyhandle);  in tpm2_load_cmd()
201 	tpm2_buf_append_auth(&buf, TPM2_RS_PW,  in tpm2_load_cmd()
207 	tpm_buf_append(&buf, payload->blob, blob_len);  in tpm2_load_cmd()
209 	if (buf.flags & TPM_BUF_OVERFLOW) {  in tpm2_load_cmd()
214 	rc = tpm_send(chip, buf.data, tpm_buf_length(&buf));  in tpm2_load_cmd()
217 			(__be32 *) &buf.data[TPM_HEADER_SIZE]);  in tpm2_load_cmd()
220 	tpm_buf_destroy(&buf);  in tpm2_load_cmd()
245 	struct tpm_buf buf;  in tpm2_unseal_cmd()  local
250 	rc = tpm_buf_init(&buf, TPM2_ST_SESSIONS, TPM2_CC_UNSEAL);  in tpm2_unseal_cmd()
254 	tpm_buf_append_u32(&buf, blob_handle);  in tpm2_unseal_cmd()
255 	tpm2_buf_append_auth(&buf,  in tpm2_unseal_cmd()
263 	rc = tpm_send(chip, buf.data, tpm_buf_length(&buf));  in tpm2_unseal_cmd()
269 			(__be16 *) &buf.data[TPM_HEADER_SIZE + 4]);  in tpm2_unseal_cmd()
275 		if (tpm_buf_length(&buf) < TPM_HEADER_SIZE + 6 + data_len) {  in tpm2_unseal_cmd()
279 		data = &buf.data[TPM_HEADER_SIZE + 6];  in tpm2_unseal_cmd()
287 	tpm_buf_destroy(&buf);  in tpm2_unseal_cmd()