| From | Herton Ronaldo Krzesinski <> | Subject | [PATCH 014/222] iscsi-target: Always send a response before terminating iSCSI connection | Date | Wed, 16 Jan 2013 13:53:34 -0200 |
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3.5.7.3 -stable review patch. If anyone has any objections, please let me know.
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From: Roland Dreier <roland@purestorage.com>
commit 1c5c12c666fda27c7c494b34934a0a0631a48130 upstream.
There are some cases, for example when the initiator sends an out-of-bounds ErrorRecoveryLevel value, where the iSCSI target terminates the connection without sending back any error. Audit the login path and add appropriate iscsit_tx_login_rsp() calls to make sure this doesn't happen.
Signed-off-by: Roland Dreier <roland@purestorage.com> Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org> [ herton: adjust context ] Signed-off-by: Herton Ronaldo Krzesinski <herton.krzesinski@canonical.com> --- drivers/target/iscsi/iscsi_target_login.c | 8 ++++---- drivers/target/iscsi/iscsi_target_nego.c | 10 ++++++++-- 2 files changed, 12 insertions(+), 6 deletions(-)
diff --git a/drivers/target/iscsi/iscsi_target_login.c b/drivers/target/iscsi/iscsi_target_login.c index 3cb7a4f..bc7d08f 100644 --- a/drivers/target/iscsi/iscsi_target_login.c +++ b/drivers/target/iscsi/iscsi_target_login.c @@ -131,13 +131,13 @@ int iscsi_check_for_session_reinstatement(struct iscsi_conn *conn) initiatorname_param = iscsi_find_param_from_key( INITIATORNAME, conn->param_list); - if (!initiatorname_param) - return -1; - sessiontype_param = iscsi_find_param_from_key( SESSIONTYPE, conn->param_list); - if (!sessiontype_param) + if (!initiatorname_param || !sessiontype_param) { + iscsit_tx_login_rsp(conn, ISCSI_STATUS_CLS_INITIATOR_ERR, + ISCSI_LOGIN_STATUS_MISSING_FIELDS); return -1; + } sessiontype = (strncmp(sessiontype_param->value, NORMAL, 6)) ? 1 : 0; diff --git a/drivers/target/iscsi/iscsi_target_nego.c b/drivers/target/iscsi/iscsi_target_nego.c index 2dba448..0184bea 100644 --- a/drivers/target/iscsi/iscsi_target_nego.c +++ b/drivers/target/iscsi/iscsi_target_nego.c @@ -628,8 +628,11 @@ static int iscsi_target_handle_csg_one(struct iscsi_conn *conn, struct iscsi_log login->req_buf, payload_length, conn->param_list); - if (ret < 0) + if (ret < 0) { + iscsit_tx_login_rsp(conn, ISCSI_STATUS_CLS_INITIATOR_ERR, + ISCSI_LOGIN_STATUS_INIT_ERR); return -1; + } if (login->first_request) if (iscsi_target_check_first_request(conn, login) < 0) @@ -644,8 +647,11 @@ static int iscsi_target_handle_csg_one(struct iscsi_conn *conn, struct iscsi_log login->rsp_buf, &login->rsp_length, conn->param_list); - if (ret < 0) + if (ret < 0) { + iscsit_tx_login_rsp(conn, ISCSI_STATUS_CLS_INITIATOR_ERR, + ISCSI_LOGIN_STATUS_INIT_ERR); return -1; + } if (!login->auth_complete && ISCSI_TPG_ATTRIB(ISCSI_TPG_C(conn))->authentication) { -- 1.7.9.5
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