Lines Matching defs:buf
26 * @buf: an allocated tpm_buf instance
34 static void tpm2_buf_append_auth(struct tpm_buf *buf, u32 session_handle,
39 tpm_buf_append_u32(buf, 9 + nonce_len + hmac_len);
40 tpm_buf_append_u32(buf, session_handle);
41 tpm_buf_append_u16(buf, nonce_len);
44 tpm_buf_append(buf, nonce, nonce_len);
46 tpm_buf_append_u8(buf, attributes);
47 tpm_buf_append_u16(buf, hmac_len);
50 tpm_buf_append(buf, hmac, hmac_len);
67 struct tpm_buf buf;
86 rc = tpm_buf_init(&buf, TPM2_ST_SESSIONS, TPM2_CC_CREATE);
92 tpm_buf_append_u32(&buf, options->keyhandle);
93 tpm2_buf_append_auth(&buf, TPM2_RS_PW,
100 tpm_buf_append_u16(&buf, 4 + options->blobauth_len + payload->key_len + 1);
102 tpm_buf_append_u16(&buf, options->blobauth_len);
104 tpm_buf_append(&buf, options->blobauth, options->blobauth_len);
106 tpm_buf_append_u16(&buf, payload->key_len + 1);
107 tpm_buf_append(&buf, payload->key, payload->key_len);
108 tpm_buf_append_u8(&buf, payload->migratable);
111 tpm_buf_append_u16(&buf, 14 + options->policydigest_len);
112 tpm_buf_append_u16(&buf, TPM_ALG_KEYEDHASH);
113 tpm_buf_append_u16(&buf, hash);
117 tpm_buf_append_u32(&buf, 0);
118 tpm_buf_append_u16(&buf, options->policydigest_len);
119 tpm_buf_append(&buf, options->policydigest,
122 tpm_buf_append_u32(&buf, TPM2_OA_USER_WITH_AUTH);
123 tpm_buf_append_u16(&buf, 0);
127 tpm_buf_append_u16(&buf, TPM_ALG_NULL);
128 tpm_buf_append_u16(&buf, 0);
131 tpm_buf_append_u16(&buf, 0);
134 tpm_buf_append_u32(&buf, 0);
136 if (buf.flags & TPM_BUF_OVERFLOW) {
141 rc = tpm_transmit_cmd(chip, &buf, 4, "sealing data");
145 blob_len = be32_to_cpup((__be32 *) &buf.data[TPM_HEADER_SIZE]);
150 if (tpm_buf_length(&buf) < TPM_HEADER_SIZE + 4 + blob_len) {
155 memcpy(payload->blob, &buf.data[TPM_HEADER_SIZE + 4], blob_len);
159 tpm_buf_destroy(&buf);
190 struct tpm_buf buf;
205 rc = tpm_buf_init(&buf, TPM2_ST_SESSIONS, TPM2_CC_LOAD);
209 tpm_buf_append_u32(&buf, options->keyhandle);
210 tpm2_buf_append_auth(&buf, TPM2_RS_PW,
216 tpm_buf_append(&buf, payload->blob, blob_len);
218 if (buf.flags & TPM_BUF_OVERFLOW) {
223 rc = tpm_transmit_cmd(chip, &buf, 4, "loading blob");
226 (__be32 *) &buf.data[TPM_HEADER_SIZE]);
229 tpm_buf_destroy(&buf);
254 struct tpm_buf buf;
259 rc = tpm_buf_init(&buf, TPM2_ST_SESSIONS, TPM2_CC_UNSEAL);
263 tpm_buf_append_u32(&buf, blob_handle);
264 tpm2_buf_append_auth(&buf,
272 rc = tpm_transmit_cmd(chip, &buf, 6, "unsealing");
278 (__be16 *) &buf.data[TPM_HEADER_SIZE + 4]);
284 if (tpm_buf_length(&buf) < TPM_HEADER_SIZE + 6 + data_len) {
288 data = &buf.data[TPM_HEADER_SIZE + 6];
296 tpm_buf_destroy(&buf);