diff options
| author | Roland Dreier <roland@purestorage.com> | 2012-11-05 18:02:42 -0800 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2014-06-11 12:04:20 -0700 |
| commit | 263ee55a37e7fd03646449cbc07e16b7943f0572 (patch) | |
| tree | fcbac0e6062f49dcca402367af05ba47691a7542 /drivers | |
| parent | 437569c5bdfb172fd13d27a82c108724b674bd63 (diff) | |
| download | lwn-263ee55a37e7fd03646449cbc07e16b7943f0572.tar.gz lwn-263ee55a37e7fd03646449cbc07e16b7943f0572.zip | |
iscsi-target: Always send a response before terminating iSCSI connection
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>
[bwh: Backported to 3.2: adjust context]
Signed-off-by: Ben Hutchings <ben@decadent.org.uk>
Cc: Rui Xiang <rui.xiang@huawei.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/target/iscsi/iscsi_target_login.c | 8 | ||||
| -rw-r--r-- | 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 3cb7a4f5b988..bc7d08fc8bbd 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 60470ee98fe2..89f89092b5f2 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) { |