lib/iscsi: Move up iscsi_op_login_rsp_init() in a file
This patch series orders login related functions top down in iscsi.c. Signed-off-by: Shuhei Matsumoto <shuhei.matsumoto.xt@hitachi.com> Change-Id: I8e123177124b4526e9bbe9001293c6f668b9c3bb Reviewed-on: https://review.gerrithub.io/c/spdk/spdk/+/476410 Tested-by: SPDK CI Jenkins <sys_sgci@intel.com> Reviewed-by: Changpeng Liu <changpeng.liu@intel.com> Reviewed-by: Jim Harris <james.r.harris@intel.com>
This commit is contained in:
Shuhei Matsumoto
Tomasz Zawadzki
parent
9e1fe1ba70
commit
3054c3f108
@ -1184,6 +1184,120 @@ iscsi_op_login_response(struct spdk_iscsi_conn *conn,
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return 0;
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}
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/*
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* The function which is used to initialize the internal response data
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* structure of iscsi login function.
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* return:
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* 0, success;
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* otherwise, error;
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*/
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static int
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iscsi_op_login_rsp_init(struct spdk_iscsi_conn *conn,
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struct spdk_iscsi_pdu *pdu, struct spdk_iscsi_pdu *rsp_pdu)
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{
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struct iscsi_bhs_login_req *reqh;
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struct iscsi_bhs_login_rsp *rsph;
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uint32_t alloc_len;
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rsph = (struct iscsi_bhs_login_rsp *)&rsp_pdu->bhs;
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rsph->opcode = ISCSI_OP_LOGIN_RSP;
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rsph->status_class = ISCSI_CLASS_SUCCESS;
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rsph->status_detail = ISCSI_LOGIN_ACCEPT;
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rsp_pdu->data_segment_len = 0;
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/* Default MaxRecvDataSegmentLength - RFC3720(12.12) */
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if (conn->MaxRecvDataSegmentLength < 8192) {
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alloc_len = 8192;
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} else {
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alloc_len = conn->MaxRecvDataSegmentLength;
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}
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rsp_pdu->data = calloc(1, alloc_len);
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if (!rsp_pdu->data) {
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SPDK_ERRLOG("calloc() failed for data segment\n");
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rsph->status_class = ISCSI_CLASS_TARGET_ERROR;
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rsph->status_detail = ISCSI_LOGIN_STATUS_NO_RESOURCES;
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return SPDK_ISCSI_LOGIN_ERROR_RESPONSE;
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}
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rsp_pdu->data_buf_len = alloc_len;
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reqh = (struct iscsi_bhs_login_req *)&pdu->bhs;
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rsph->flags |= (reqh->flags & ISCSI_LOGIN_TRANSIT);
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rsph->flags |= (reqh->flags & ISCSI_LOGIN_CONTINUE);
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rsph->flags |= (reqh->flags & ISCSI_LOGIN_CURRENT_STAGE_MASK);
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if (ISCSI_BHS_LOGIN_GET_TBIT(rsph->flags)) {
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rsph->flags |= (reqh->flags & ISCSI_LOGIN_NEXT_STAGE_MASK);
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}
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/* We don't need to convert from network byte order. Just store it */
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memcpy(&rsph->isid, reqh->isid, 6);
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rsph->tsih = reqh->tsih;
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rsph->itt = reqh->itt;
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rsp_pdu->cmd_sn = from_be32(&reqh->cmd_sn);
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if (rsph->tsih) {
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rsph->stat_sn = reqh->exp_stat_sn;
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}
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SPDK_LOGDUMP(SPDK_LOG_ISCSI, "PDU", (uint8_t *)&pdu->bhs, ISCSI_BHS_LEN);
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SPDK_DEBUGLOG(SPDK_LOG_ISCSI,
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"T=%d, C=%d, CSG=%d, NSG=%d, Min=%d, Max=%d, ITT=%x\n",
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ISCSI_BHS_LOGIN_GET_TBIT(rsph->flags),
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ISCSI_BHS_LOGIN_GET_CBIT(rsph->flags),
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ISCSI_BHS_LOGIN_GET_CSG(rsph->flags),
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ISCSI_BHS_LOGIN_GET_NSG(rsph->flags),
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reqh->version_min, reqh->version_max, from_be32(&rsph->itt));
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if (conn->sess != NULL) {
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SPDK_DEBUGLOG(SPDK_LOG_ISCSI,
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"CmdSN=%u, ExpStatSN=%u, StatSN=%u, ExpCmdSN=%u,"
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"MaxCmdSN=%u\n", rsp_pdu->cmd_sn,
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from_be32(&rsph->stat_sn), conn->StatSN,
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conn->sess->ExpCmdSN,
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conn->sess->MaxCmdSN);
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} else {
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SPDK_DEBUGLOG(SPDK_LOG_ISCSI,
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"CmdSN=%u, ExpStatSN=%u, StatSN=%u\n",
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rsp_pdu->cmd_sn, from_be32(&rsph->stat_sn),
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conn->StatSN);
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}
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if (ISCSI_BHS_LOGIN_GET_TBIT(rsph->flags) &&
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ISCSI_BHS_LOGIN_GET_CBIT(rsph->flags)) {
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SPDK_ERRLOG("transit error\n");
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rsph->status_class = ISCSI_CLASS_INITIATOR_ERROR;
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rsph->status_detail = ISCSI_LOGIN_INITIATOR_ERROR;
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return SPDK_ISCSI_LOGIN_ERROR_RESPONSE;
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}
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/* make sure reqh->version_max < ISCSI_VERSION */
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if (reqh->version_min > ISCSI_VERSION) {
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SPDK_ERRLOG("unsupported version min %d/max %d, expecting %d\n", reqh->version_min,
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reqh->version_max, ISCSI_VERSION);
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/* Unsupported version */
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/* set all reserved flag to zero */
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rsph->status_class = ISCSI_CLASS_INITIATOR_ERROR;
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rsph->status_detail = ISCSI_LOGIN_UNSUPPORTED_VERSION;
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return SPDK_ISCSI_LOGIN_ERROR_RESPONSE;
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}
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if ((ISCSI_BHS_LOGIN_GET_NSG(rsph->flags) == ISCSI_NSG_RESERVED_CODE) &&
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ISCSI_BHS_LOGIN_GET_TBIT(rsph->flags)) {
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/* set NSG to zero */
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rsph->flags &= ~ISCSI_LOGIN_NEXT_STAGE_MASK;
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/* also set other bits to zero */
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rsph->flags &= ~ISCSI_LOGIN_TRANSIT;
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rsph->flags &= ~ISCSI_LOGIN_CURRENT_STAGE_MASK;
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SPDK_ERRLOG("Received reserved NSG code: %d\n", ISCSI_NSG_RESERVED_CODE);
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/* Initiator error */
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rsph->status_class = ISCSI_CLASS_INITIATOR_ERROR;
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rsph->status_detail = ISCSI_LOGIN_INITIATOR_ERROR;
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return SPDK_ISCSI_LOGIN_ERROR_RESPONSE;
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}
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return 0;
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}
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/*
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* This function is used to del the original param and update it with new
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* value
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@ -1777,120 +1891,6 @@ iscsi_op_login_phase_none(struct spdk_iscsi_conn *conn,
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return iscsi_op_login_set_target_info(conn, rsp_pdu, session_type);
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}
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/*
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* The function which is used to initialize the internal response data
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* structure of iscsi login function.
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* return:
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* 0, success;
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* otherwise, error;
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*/
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static int
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iscsi_op_login_rsp_init(struct spdk_iscsi_conn *conn,
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struct spdk_iscsi_pdu *pdu, struct spdk_iscsi_pdu *rsp_pdu)
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{
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struct iscsi_bhs_login_req *reqh;
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struct iscsi_bhs_login_rsp *rsph;
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uint32_t alloc_len;
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rsph = (struct iscsi_bhs_login_rsp *)&rsp_pdu->bhs;
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rsph->opcode = ISCSI_OP_LOGIN_RSP;
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rsph->status_class = ISCSI_CLASS_SUCCESS;
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rsph->status_detail = ISCSI_LOGIN_ACCEPT;
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rsp_pdu->data_segment_len = 0;
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/* Default MaxRecvDataSegmentLength - RFC3720(12.12) */
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if (conn->MaxRecvDataSegmentLength < 8192) {
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alloc_len = 8192;
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} else {
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alloc_len = conn->MaxRecvDataSegmentLength;
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}
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rsp_pdu->data = calloc(1, alloc_len);
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if (!rsp_pdu->data) {
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SPDK_ERRLOG("calloc() failed for data segment\n");
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rsph->status_class = ISCSI_CLASS_TARGET_ERROR;
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rsph->status_detail = ISCSI_LOGIN_STATUS_NO_RESOURCES;
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return SPDK_ISCSI_LOGIN_ERROR_RESPONSE;
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}
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rsp_pdu->data_buf_len = alloc_len;
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reqh = (struct iscsi_bhs_login_req *)&pdu->bhs;
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rsph->flags |= (reqh->flags & ISCSI_LOGIN_TRANSIT);
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rsph->flags |= (reqh->flags & ISCSI_LOGIN_CONTINUE);
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rsph->flags |= (reqh->flags & ISCSI_LOGIN_CURRENT_STAGE_MASK);
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if (ISCSI_BHS_LOGIN_GET_TBIT(rsph->flags)) {
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rsph->flags |= (reqh->flags & ISCSI_LOGIN_NEXT_STAGE_MASK);
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}
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/* We don't need to convert from network byte order. Just store it */
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memcpy(&rsph->isid, reqh->isid, 6);
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rsph->tsih = reqh->tsih;
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rsph->itt = reqh->itt;
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rsp_pdu->cmd_sn = from_be32(&reqh->cmd_sn);
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if (rsph->tsih) {
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rsph->stat_sn = reqh->exp_stat_sn;
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}
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SPDK_LOGDUMP(SPDK_LOG_ISCSI, "PDU", (uint8_t *)&pdu->bhs, ISCSI_BHS_LEN);
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SPDK_DEBUGLOG(SPDK_LOG_ISCSI,
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"T=%d, C=%d, CSG=%d, NSG=%d, Min=%d, Max=%d, ITT=%x\n",
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ISCSI_BHS_LOGIN_GET_TBIT(rsph->flags),
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ISCSI_BHS_LOGIN_GET_CBIT(rsph->flags),
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ISCSI_BHS_LOGIN_GET_CSG(rsph->flags),
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ISCSI_BHS_LOGIN_GET_NSG(rsph->flags),
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reqh->version_min, reqh->version_max, from_be32(&rsph->itt));
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if (conn->sess != NULL) {
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SPDK_DEBUGLOG(SPDK_LOG_ISCSI,
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"CmdSN=%u, ExpStatSN=%u, StatSN=%u, ExpCmdSN=%u,"
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"MaxCmdSN=%u\n", rsp_pdu->cmd_sn,
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from_be32(&rsph->stat_sn), conn->StatSN,
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conn->sess->ExpCmdSN,
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conn->sess->MaxCmdSN);
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} else {
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SPDK_DEBUGLOG(SPDK_LOG_ISCSI,
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"CmdSN=%u, ExpStatSN=%u, StatSN=%u\n",
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rsp_pdu->cmd_sn, from_be32(&rsph->stat_sn),
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conn->StatSN);
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}
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if (ISCSI_BHS_LOGIN_GET_TBIT(rsph->flags) &&
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ISCSI_BHS_LOGIN_GET_CBIT(rsph->flags)) {
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SPDK_ERRLOG("transit error\n");
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rsph->status_class = ISCSI_CLASS_INITIATOR_ERROR;
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rsph->status_detail = ISCSI_LOGIN_INITIATOR_ERROR;
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return SPDK_ISCSI_LOGIN_ERROR_RESPONSE;
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}
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/* make sure reqh->version_max < ISCSI_VERSION */
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if (reqh->version_min > ISCSI_VERSION) {
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SPDK_ERRLOG("unsupported version min %d/max %d, expecting %d\n", reqh->version_min,
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reqh->version_max, ISCSI_VERSION);
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/* Unsupported version */
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/* set all reserved flag to zero */
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rsph->status_class = ISCSI_CLASS_INITIATOR_ERROR;
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rsph->status_detail = ISCSI_LOGIN_UNSUPPORTED_VERSION;
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return SPDK_ISCSI_LOGIN_ERROR_RESPONSE;
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}
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if ((ISCSI_BHS_LOGIN_GET_NSG(rsph->flags) == ISCSI_NSG_RESERVED_CODE) &&
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ISCSI_BHS_LOGIN_GET_TBIT(rsph->flags)) {
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/* set NSG to zero */
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rsph->flags &= ~ISCSI_LOGIN_NEXT_STAGE_MASK;
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/* also set other bits to zero */
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rsph->flags &= ~ISCSI_LOGIN_TRANSIT;
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rsph->flags &= ~ISCSI_LOGIN_CURRENT_STAGE_MASK;
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SPDK_ERRLOG("Received reserved NSG code: %d\n", ISCSI_NSG_RESERVED_CODE);
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/* Initiator error */
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rsph->status_class = ISCSI_CLASS_INITIATOR_ERROR;
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rsph->status_detail = ISCSI_LOGIN_INITIATOR_ERROR;
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return SPDK_ISCSI_LOGIN_ERROR_RESPONSE;
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}
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return 0;
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}
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static int
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iscsi_op_login_store_incoming_params(struct spdk_iscsi_conn *conn,
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struct spdk_iscsi_pdu *pdu, struct spdk_iscsi_pdu *rsp_pdu,
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