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authorDmitry Bogdanov <d.bogdanov@yadro.com>2022-07-18 18:25:54 +0300
committerMartin K. Petersen <martin.petersen@oracle.com>2022-07-26 22:13:28 -0400
commite52b904b49273df35766826ce8dfb8cc3dd1ff37 (patch)
tree39b9cbb8ea342e7dca54dbbc37877fe56c1cc5b1 /drivers/target
parent1e5733883421495908f3b90d9d807663038b4136 (diff)
scsi: target: iscsi: Allow AuthMethod=None
Allow negotiating AuthMethod=None at CSG=0 (Security Negotiation) when authentication is not required. That is required by the CHAP test in Windows HLK. Link: https://lore.kernel.org/r/20220718152555.17084-4-d.bogdanov@yadro.com Reviewed-by: Mike Christie <michael.christie@oracle.com> Signed-off-by: Dmitry Bogdanov <d.bogdanov@yadro.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Diffstat (limited to 'drivers/target')
-rw-r--r--drivers/target/iscsi/iscsi_target_login.c13
-rw-r--r--drivers/target/iscsi/iscsi_target_nego.c2
-rw-r--r--drivers/target/iscsi/iscsi_target_nego.h2
3 files changed, 15 insertions, 2 deletions
diff --git a/drivers/target/iscsi/iscsi_target_login.c b/drivers/target/iscsi/iscsi_target_login.c
index 0778591abae7..27e448c2d066 100644
--- a/drivers/target/iscsi/iscsi_target_login.c
+++ b/drivers/target/iscsi/iscsi_target_login.c
@@ -341,6 +341,7 @@ static int iscsi_login_zero_tsih_s2(
{
struct iscsi_node_attrib *na;
struct iscsit_session *sess = conn->sess;
+ struct iscsi_param *param;
bool iser = false;
sess->tpg = conn->tpg;
@@ -375,6 +376,18 @@ static int iscsi_login_zero_tsih_s2(
na = iscsit_tpg_get_node_attrib(sess);
/*
+ * If ACL allows non-authorized access in TPG with CHAP,
+ * then set None to AuthMethod.
+ */
+ param = iscsi_find_param_from_key(AUTHMETHOD, conn->param_list);
+ if (param && !strstr(param->value, NONE)) {
+ if (!iscsi_conn_auth_required(conn))
+ if (iscsi_change_param_sprintf(conn, "AuthMethod=%s",
+ NONE))
+ return -1;
+ }
+
+ /*
* Need to send TargetPortalGroupTag back in first login response
* on any iSCSI connection where the Initiator provides TargetName.
* See 5.3.1. Login Phase Start
diff --git a/drivers/target/iscsi/iscsi_target_nego.c b/drivers/target/iscsi/iscsi_target_nego.c
index 767646438391..a167fab80588 100644
--- a/drivers/target/iscsi/iscsi_target_nego.c
+++ b/drivers/target/iscsi/iscsi_target_nego.c
@@ -814,7 +814,7 @@ static int iscsi_target_do_authentication(
return 0;
}
-static bool iscsi_conn_auth_required(struct iscsit_conn *conn)
+bool iscsi_conn_auth_required(struct iscsit_conn *conn)
{
struct iscsi_node_acl *nacl;
struct se_node_acl *se_nacl;
diff --git a/drivers/target/iscsi/iscsi_target_nego.h b/drivers/target/iscsi/iscsi_target_nego.h
index 21d3cab90d08..41c3db3ddeaa 100644
--- a/drivers/target/iscsi/iscsi_target_nego.h
+++ b/drivers/target/iscsi/iscsi_target_nego.h
@@ -22,5 +22,5 @@ extern int iscsi_target_locate_portal(struct iscsi_np *, struct iscsit_conn *,
extern int iscsi_target_start_negotiation(
struct iscsi_login *, struct iscsit_conn *);
extern void iscsi_target_nego_release(struct iscsit_conn *);
-
+extern bool iscsi_conn_auth_required(struct iscsit_conn *conn);
#endif /* ISCSI_TARGET_NEGO_H */