From: Mike Christie Date: Wed, 30 May 2007 17:57:16 +0000 (-0500) Subject: [SCSI] iscsi class, iscsi_tcp, ib_iser: add sysfs chap file X-Git-Tag: v2.6.23-rc1~1053^2~84 X-Git-Url: https://err.no/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=b2c6416736b847b91950bd43cc5153e11a1f83ee;p=linux-2.6 [SCSI] iscsi class, iscsi_tcp, ib_iser: add sysfs chap file The attached patches add sysfs files for the chap settings to the iscsi transport class, iscsi_tcp and ib_iser. This is needed for software iscsi because there are times when iscsid can die and it will need to reread the values it was using. And it is needed by qla4xxx for basic management opertaions. This patch does not hook in qla4xxx yet, because I am not sure the mbx command to use. Signed-off-by: Mike Christie Cc: Roland Dreier Signed-off-by: James Bottomley --- diff --git a/drivers/infiniband/ulp/iser/iscsi_iser.c b/drivers/infiniband/ulp/iser/iscsi_iser.c index 568f88bf7c..6c8cd09c58 100644 --- a/drivers/infiniband/ulp/iser/iscsi_iser.c +++ b/drivers/infiniband/ulp/iser/iscsi_iser.c @@ -574,8 +574,9 @@ static struct iscsi_transport iscsi_iser_transport = { ISCSI_EXP_STATSN | ISCSI_PERSISTENT_PORT | ISCSI_PERSISTENT_ADDRESS | - ISCSI_TARGET_NAME | - ISCSI_TPGT, + ISCSI_TARGET_NAME | ISCSI_TPGT | + ISCSI_USERNAME | ISCSI_PASSWORD | + ISCSI_USERNAME_IN | ISCSI_PASSWORD_IN, .host_param_mask = ISCSI_HOST_HWADDRESS | ISCSI_HOST_INITIATOR_NAME, .host_template = &iscsi_iser_sht, diff --git a/drivers/scsi/iscsi_tcp.c b/drivers/scsi/iscsi_tcp.c index b2827d112c..1e722f5aab 100644 --- a/drivers/scsi/iscsi_tcp.c +++ b/drivers/scsi/iscsi_tcp.c @@ -2186,8 +2186,9 @@ static struct iscsi_transport iscsi_tcp_transport = { ISCSI_EXP_STATSN | ISCSI_PERSISTENT_PORT | ISCSI_PERSISTENT_ADDRESS | - ISCSI_TARGET_NAME | - ISCSI_TPGT, + ISCSI_TARGET_NAME | ISCSI_TPGT | + ISCSI_USERNAME | ISCSI_PASSWORD | + ISCSI_USERNAME_IN | ISCSI_PASSWORD_IN, .host_param_mask = ISCSI_HOST_HWADDRESS | ISCSI_HOST_INITIATOR_NAME, .host_template = &iscsi_sht, diff --git a/drivers/scsi/libiscsi.c b/drivers/scsi/libiscsi.c index 0a9c64e9ce..63981edf9a 100644 --- a/drivers/scsi/libiscsi.c +++ b/drivers/scsi/libiscsi.c @@ -1461,6 +1461,10 @@ void iscsi_session_teardown(struct iscsi_cls_session *cls_session) iscsi_pool_free(&session->mgmtpool, (void**)session->mgmt_cmds); iscsi_pool_free(&session->cmdpool, (void**)session->cmds); + kfree(session->password); + kfree(session->password_in); + kfree(session->username); + kfree(session->username_in); kfree(session->targetname); kfree(session->hwaddress); kfree(session->initiatorname); @@ -1869,6 +1873,30 @@ int iscsi_set_param(struct iscsi_cls_conn *cls_conn, case ISCSI_PARAM_EXP_STATSN: sscanf(buf, "%u", &conn->exp_statsn); break; + case ISCSI_PARAM_USERNAME: + kfree(session->username); + session->username = kstrdup(buf, GFP_KERNEL); + if (!session->username) + return -ENOMEM; + break; + case ISCSI_PARAM_USERNAME_IN: + kfree(session->username_in); + session->username_in = kstrdup(buf, GFP_KERNEL); + if (!session->username_in) + return -ENOMEM; + break; + case ISCSI_PARAM_PASSWORD: + kfree(session->password); + session->password = kstrdup(buf, GFP_KERNEL); + if (!session->password) + return -ENOMEM; + break; + case ISCSI_PARAM_PASSWORD_IN: + kfree(session->password_in); + session->password_in = kstrdup(buf, GFP_KERNEL); + if (!session->password_in) + return -ENOMEM; + break; case ISCSI_PARAM_TARGET_NAME: /* this should not change between logins */ if (session->targetname) @@ -1942,6 +1970,18 @@ int iscsi_session_get_param(struct iscsi_cls_session *cls_session, case ISCSI_PARAM_TPGT: len = sprintf(buf, "%d\n", session->tpgt); break; + case ISCSI_PARAM_USERNAME: + len = sprintf(buf, "%s\n", session->username); + break; + case ISCSI_PARAM_USERNAME_IN: + len = sprintf(buf, "%s\n", session->username_in); + break; + case ISCSI_PARAM_PASSWORD: + len = sprintf(buf, "%s\n", session->password); + break; + case ISCSI_PARAM_PASSWORD_IN: + len = sprintf(buf, "%s\n", session->password_in); + break; default: return -ENOSYS; } diff --git a/drivers/scsi/scsi_transport_iscsi.c b/drivers/scsi/scsi_transport_iscsi.c index 5ec2fbea89..341d4fb5c6 100644 --- a/drivers/scsi/scsi_transport_iscsi.c +++ b/drivers/scsi/scsi_transport_iscsi.c @@ -30,7 +30,7 @@ #include #include -#define ISCSI_SESSION_ATTRS 11 +#define ISCSI_SESSION_ATTRS 15 #define ISCSI_CONN_ATTRS 11 #define ISCSI_HOST_ATTRS 2 #define ISCSI_TRANSPORT_VERSION "2.0-724" @@ -1196,30 +1196,37 @@ iscsi_conn_attr(address, ISCSI_PARAM_CONN_ADDRESS); /* * iSCSI session attrs */ -#define iscsi_session_attr_show(param) \ +#define iscsi_session_attr_show(param, perm) \ static ssize_t \ show_session_param_##param(struct class_device *cdev, char *buf) \ { \ struct iscsi_cls_session *session = iscsi_cdev_to_session(cdev); \ struct iscsi_transport *t = session->transport; \ + \ + if (perm && !capable(CAP_SYS_ADMIN)) \ + return -EACCES; \ return t->get_session_param(session, param, buf); \ } -#define iscsi_session_attr(field, param) \ - iscsi_session_attr_show(param) \ +#define iscsi_session_attr(field, param, perm) \ + iscsi_session_attr_show(param, perm) \ static ISCSI_CLASS_ATTR(sess, field, S_IRUGO, show_session_param_##param, \ NULL); -iscsi_session_attr(targetname, ISCSI_PARAM_TARGET_NAME); -iscsi_session_attr(initial_r2t, ISCSI_PARAM_INITIAL_R2T_EN); -iscsi_session_attr(max_outstanding_r2t, ISCSI_PARAM_MAX_R2T); -iscsi_session_attr(immediate_data, ISCSI_PARAM_IMM_DATA_EN); -iscsi_session_attr(first_burst_len, ISCSI_PARAM_FIRST_BURST); -iscsi_session_attr(max_burst_len, ISCSI_PARAM_MAX_BURST); -iscsi_session_attr(data_pdu_in_order, ISCSI_PARAM_PDU_INORDER_EN); -iscsi_session_attr(data_seq_in_order, ISCSI_PARAM_DATASEQ_INORDER_EN); -iscsi_session_attr(erl, ISCSI_PARAM_ERL); -iscsi_session_attr(tpgt, ISCSI_PARAM_TPGT); +iscsi_session_attr(targetname, ISCSI_PARAM_TARGET_NAME, 0); +iscsi_session_attr(initial_r2t, ISCSI_PARAM_INITIAL_R2T_EN, 0); +iscsi_session_attr(max_outstanding_r2t, ISCSI_PARAM_MAX_R2T, 0); +iscsi_session_attr(immediate_data, ISCSI_PARAM_IMM_DATA_EN, 0); +iscsi_session_attr(first_burst_len, ISCSI_PARAM_FIRST_BURST, 0); +iscsi_session_attr(max_burst_len, ISCSI_PARAM_MAX_BURST, 0); +iscsi_session_attr(data_pdu_in_order, ISCSI_PARAM_PDU_INORDER_EN, 0); +iscsi_session_attr(data_seq_in_order, ISCSI_PARAM_DATASEQ_INORDER_EN, 0); +iscsi_session_attr(erl, ISCSI_PARAM_ERL, 0); +iscsi_session_attr(tpgt, ISCSI_PARAM_TPGT, 0); +iscsi_session_attr(username, ISCSI_PARAM_USERNAME, 1); +iscsi_session_attr(username_in, ISCSI_PARAM_USERNAME_IN, 1); +iscsi_session_attr(password, ISCSI_PARAM_PASSWORD, 1); +iscsi_session_attr(password_in, ISCSI_PARAM_PASSWORD_IN, 1); #define iscsi_priv_session_attr_show(field, format) \ static ssize_t \ @@ -1433,6 +1440,10 @@ iscsi_register_transport(struct iscsi_transport *tt) SETUP_SESSION_RD_ATTR(erl, ISCSI_ERL); SETUP_SESSION_RD_ATTR(targetname, ISCSI_TARGET_NAME); SETUP_SESSION_RD_ATTR(tpgt, ISCSI_TPGT); + SETUP_SESSION_RD_ATTR(password, ISCSI_USERNAME); + SETUP_SESSION_RD_ATTR(password_in, ISCSI_USERNAME_IN); + SETUP_SESSION_RD_ATTR(username, ISCSI_PASSWORD); + SETUP_SESSION_RD_ATTR(username_in, ISCSI_PASSWORD_IN); SETUP_PRIV_SESSION_RD_ATTR(recovery_tmo); BUG_ON(count > ISCSI_SESSION_ATTRS); diff --git a/include/scsi/iscsi_if.h b/include/scsi/iscsi_if.h index e057c5d370..1a18196d77 100644 --- a/include/scsi/iscsi_if.h +++ b/include/scsi/iscsi_if.h @@ -229,6 +229,11 @@ enum iscsi_param { ISCSI_PARAM_CONN_PORT, ISCSI_PARAM_CONN_ADDRESS, + ISCSI_PARAM_USERNAME, + ISCSI_PARAM_USERNAME_IN, + ISCSI_PARAM_PASSWORD, + ISCSI_PARAM_PASSWORD_IN, + /* must always be last */ ISCSI_PARAM_MAX, }; @@ -255,6 +260,10 @@ enum iscsi_param { #define ISCSI_SESS_RECOVERY_TMO (1 << ISCSI_PARAM_SESS_RECOVERY_TMO) #define ISCSI_CONN_PORT (1 << ISCSI_PARAM_CONN_PORT) #define ISCSI_CONN_ADDRESS (1 << ISCSI_PARAM_CONN_ADDRESS) +#define ISCSI_USERNAME (1 << ISCSI_PARAM_USERNAME) +#define ISCSI_USERNAME_IN (1 << ISCSI_PARAM_USERNAME_IN) +#define ISCSI_PASSWORD (1 << ISCSI_PARAM_PASSWORD) +#define ISCSI_PASSWORD_IN (1 << ISCSI_PARAM_PASSWORD_IN) /* iSCSI HBA params */ enum iscsi_host_param { diff --git a/include/scsi/libiscsi.h b/include/scsi/libiscsi.h index 348265d4a2..61bc8f75b2 100644 --- a/include/scsi/libiscsi.h +++ b/include/scsi/libiscsi.h @@ -221,6 +221,10 @@ struct iscsi_session { int dataseq_inorder_en; int erl; int tpgt; + char *username; + char *username_in; + char *password; + char *password_in; char *targetname; char *initiatorname; /* hw address being used for iscsi connection */