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[SCSI] qla4xxx: Add support to get CHAP details for flash target session 

Add support to get local CHAP - index, username and password,
sysfs params of iscsi session corresponding to flash target entry.

Signed-off-by: Adheer Chandravanshi <adheer.chandravanshi@qlogic.com>
Signed-off-by: Vikas Chaudhary <vikas.chaudhary@qlogic.com>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
This commit is contained in:
Adheer Chandravanshi 2013-09-17 07:54:50 -04:00 committed by James Bottomley
parent 26ffd7b45f
commit 97c2730cb8
1 changed files with 38 additions and 3 deletions
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41
drivers/scsi/qla4xxx/ql4_os.c
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@ -1652,9 +1652,12 @@ static int qla4xxx_session_get_param(struct iscsi_cls_session *cls_sess,
struct iscsi_session *sess = cls_sess->dd_data;
struct ddb_entry *ddb_entry = sess->dd_data;
struct scsi_qla_host *ha = ddb_entry->ha;
struct iscsi_cls_conn *cls_conn = ddb_entry->conn;
struct ql4_chap_table chap_tbl;
int rval, len;
uint16_t idx;
memset(&chap_tbl, 0, sizeof(chap_tbl));
switch (param) {
case ISCSI_PARAM_CHAP_IN_IDX:
rval = qla4xxx_get_chap_index(ha, sess->username_in,
@ -1666,14 +1669,46 @@ static int qla4xxx_session_get_param(struct iscsi_cls_session *cls_sess,
len = sprintf(buf, "%hu\n", idx);
break;
case ISCSI_PARAM_CHAP_OUT_IDX:
rval = qla4xxx_get_chap_index(ha, sess->username,
sess->password, LOCAL_CHAP,
&idx);
if (ddb_entry->ddb_type == FLASH_DDB) {
if (ddb_entry->chap_tbl_idx != INVALID_ENTRY) {
idx = ddb_entry->chap_tbl_idx;
rval = QLA_SUCCESS;
} else {
rval = QLA_ERROR;
}
} else {
rval = qla4xxx_get_chap_index(ha, sess->username,
sess->password,
LOCAL_CHAP, &idx);
}
if (rval)
len = sprintf(buf, "\n");
else
len = sprintf(buf, "%hu\n", idx);
break;
case ISCSI_PARAM_USERNAME:
case ISCSI_PARAM_PASSWORD:
/* First, populate session username and password for FLASH DDB,
* if not already done. This happens when session login fails
* for a FLASH DDB.
*/
if (ddb_entry->ddb_type == FLASH_DDB &&
ddb_entry->chap_tbl_idx != INVALID_ENTRY &&
!sess->username && !sess->password) {
idx = ddb_entry->chap_tbl_idx;
rval = qla4xxx_get_uni_chap_at_index(ha, chap_tbl.name,
chap_tbl.secret,
idx);
if (!rval) {
iscsi_set_param(cls_conn, ISCSI_PARAM_USERNAME,
(char *)chap_tbl.name,
strlen((char *)chap_tbl.name));
iscsi_set_param(cls_conn, ISCSI_PARAM_PASSWORD,
(char *)chap_tbl.secret,
chap_tbl.secret_len);
}
}
/* allow fall-through */
default:
return iscsi_session_get_param(cls_sess, param, buf);
}