1 /*-
2  * SPDX-License-Identifier: BSD-2-Clause
48 	bhstr = (struct iscsi_bhs_text_request *)request->pdu_bhs;  in text_new_request()
49 	bhstr->bhstr_opcode = ISCSI_BHS_OPCODE_TEXT_REQUEST |  in text_new_request()
51 	bhstr->bhstr_flags = BHSTR_FLAGS_FINAL;  in text_new_request()
52 	bhstr->bhstr_initiator_task_tag = 0;  in text_new_request()
53 	bhstr->bhstr_target_transfer_tag = ttt;  in text_new_request()
55 	bhstr->bhstr_cmdsn = conn->conn_cmdsn;  in text_new_request()
56 	bhstr->bhstr_expstatsn = htonl(conn->conn_statsn + 1);  in text_new_request()
70 	if ((request->pdu_bhs->bhs_opcode & ~ISCSI_BHS_OPCODE_IMMEDIATE) !=  in text_receive_request()
73 		    request->pdu_bhs->bhs_opcode);  in text_receive_request()
74 	bhstr = (struct iscsi_bhs_text_request *)request->pdu_bhs;  in text_receive_request()
79 	if ((bhstr->bhstr_flags & (BHSTR_FLAGS_FINAL | BHSTR_FLAGS_CONTINUE)) !=  in text_receive_request()
82 		    "flags: %u", bhstr->bhstr_flags);  in text_receive_request()
83 	if (ISCSI_SNLT(ntohl(bhstr->bhstr_cmdsn), conn->conn_cmdsn)) {  in text_receive_request()
85 		    "was %u, is %u", conn->conn_cmdsn, ntohl(bhstr->bhstr_cmdsn));  in text_receive_request()
87 	conn->conn_cmdsn = ntohl(bhstr->bhstr_cmdsn);  in text_receive_request()
88 	if ((bhstr->bhstr_opcode & ISCSI_BHS_OPCODE_IMMEDIATE) == 0)  in text_receive_request()
89 		conn->conn_cmdsn++;  in text_receive_request()
103 	bhstr = (struct iscsi_bhs_text_request *)request->pdu_bhs;  in text_new_response()
104 	conn = request->pdu_connection;  in text_new_response()
107 	bhstr2 = (struct iscsi_bhs_text_response *)response->pdu_bhs;  in text_new_response()
108 	bhstr2->bhstr_opcode = ISCSI_BHS_OPCODE_TEXT_RESPONSE;  in text_new_response()
110 		bhstr2->bhstr_flags = BHSTR_FLAGS_FINAL;  in text_new_response()
112 		bhstr2->bhstr_flags = BHSTR_FLAGS_CONTINUE;  in text_new_response()
113 	bhstr2->bhstr_lun = bhstr->bhstr_lun;  in text_new_response()
114 	bhstr2->bhstr_initiator_task_tag = bhstr->bhstr_initiator_task_tag;  in text_new_response()
115 	bhstr2->bhstr_target_transfer_tag = ttt;  in text_new_response()
116 	bhstr2->bhstr_statsn = htonl(conn->conn_statsn++);  in text_new_response()
117 	bhstr2->bhstr_expcmdsn = htonl(conn->conn_cmdsn);  in text_new_response()
118 	bhstr2->bhstr_maxcmdsn = htonl(conn->conn_cmdsn);  in text_new_response()
133 	if (response->pdu_bhs->bhs_opcode != ISCSI_BHS_OPCODE_TEXT_RESPONSE)  in text_receive_response()
135 		    response->pdu_bhs->bhs_opcode);  in text_receive_response()
136 	bhstr = (struct iscsi_bhs_text_response *)response->pdu_bhs;  in text_receive_response()
137 	flags = bhstr->bhstr_flags & (BHSTR_FLAGS_FINAL | BHSTR_FLAGS_CONTINUE);  in text_receive_response()
140 		if (bhstr->bhstr_target_transfer_tag == 0xffffffff)  in text_receive_response()
143 			    bhstr->bhstr_target_transfer_tag);  in text_receive_response()
146 		if (bhstr->bhstr_target_transfer_tag != 0xffffffff)  in text_receive_response()
149 			    bhstr->bhstr_target_transfer_tag);  in text_receive_response()
153 		    "flags: %u", bhstr->bhstr_flags);  in text_receive_response()
155 	if (ntohl(bhstr->bhstr_statsn) != conn->conn_statsn + 1) {  in text_receive_response()
157 		    "is %u, should be %u", ntohl(bhstr->bhstr_statsn),  in text_receive_response()
158 		    conn->conn_statsn + 1);  in text_receive_response()
160 	conn->conn_statsn = ntohl(bhstr->bhstr_statsn);  in text_receive_response()
166  * Send a list of keys from the initiator to the target in a
176 	if (request->pdu_data_len == 0)  in text_send_request()
177 		log_errx(1, "No keys to send in a TextRequest");  in text_send_request()
178 	if (request->pdu_data_len >  in text_send_request()
179 	    (size_t)conn->conn_max_send_data_segment_length)  in text_send_request()
180 		log_errx(1, "Keys to send in TextRequest are too long");  in text_send_request()
206 		bhstr = (struct iscsi_bhs_text_response *)response->pdu_bhs;  in text_read_response()
208 			ttt = bhstr->bhstr_target_transfer_tag;  in text_read_response()
209 			keys_data = response->pdu_data;  in text_read_response()
210 			keys_len = response->pdu_data_len;  in text_read_response()
211 			response->pdu_data = NULL;  in text_read_response()
214 			    keys_len + response->pdu_data_len);  in text_read_response()
217 			memcpy(keys_data + keys_len, response->pdu_data,  in text_read_response()
218 			    response->pdu_data_len);  in text_read_response()
219 			keys_len += response->pdu_data_len;  in text_read_response()
221 		if ((bhstr->bhstr_flags & BHSTR_FLAGS_FINAL) != 0) {  in text_read_response()
225 		if (bhstr->bhstr_target_transfer_tag != ttt)  in text_read_response()
226 			log_errx(1, "received non-final TextRequest PDU with "  in text_read_response()
228 			    bhstr->bhstr_target_transfer_tag);  in text_read_response()
231 		/* Send an empty request. */  in text_read_response()
254 	bhstr = (struct iscsi_bhs_text_request *)request->pdu_bhs;  in text_read_request()
255 	if (bhstr->bhstr_target_transfer_tag != 0xffffffff)  in text_read_request()
257 		    bhstr->bhstr_target_transfer_tag);  in text_read_request()
258 	if (ntohl(bhstr->bhstr_expstatsn) != conn->conn_statsn) {  in text_read_request()
260 		    "is %u, should be %u", ntohl(bhstr->bhstr_expstatsn),  in text_read_request()
261 		    conn->conn_statsn);  in text_read_request()
271  * Send a response back to the initiator as a series of TextResponse
277 	struct connection *conn = request->pdu_connection;  in text_send_response()
292 		todo = keys_len - keys_offset;  in text_send_response()
293 		if (todo > (size_t)conn->conn_max_send_data_segment_length) {  in text_send_response()
295 			todo = conn->conn_max_send_data_segment_length;  in text_send_response()
302 		response->pdu_data = keys_data + keys_offset;  in text_send_response()
303 		response->pdu_data_len = todo;  in text_send_response()
307 		response->pdu_data = NULL;  in text_send_response()
314 		 * Wait for an empty request.  in text_send_response()
316 		 * XXX: Linux's Open-iSCSI initiator doesn't update  in text_send_response()
320 		bhstr = (struct iscsi_bhs_text_request *)request2->pdu_bhs;  in text_send_response()
321 		if ((bhstr->bhstr_flags & BHSTR_FLAGS_FINAL) == 0)  in text_send_response()
325 			log_errx(1, "received non-empty continuation "  in text_send_response()
327 		if (bhstr->bhstr_target_transfer_tag != ttt)  in text_send_response()
329 			    "TTT 0x%x", bhstr->bhstr_target_transfer_tag);  in text_send_response()