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ksmbd: fix wrong error status return on session setup 

When user insert wrong password, ksmbd return STATUS_INVALID_PARAMETER
error status to client. It will make user confusing whether it is not
password problem. This patch change error status to
STATUS_LOGON_FAILURE. and return STATUS_INSUFFICIENT_RESOURCES if memory
allocation failed on session setup.

Signed-off-by: Namjae Jeon <namjae.jeon@samsung.com>
Signed-off-by: Steve French <stfrench@microsoft.com>
This commit is contained in:
Namjae Jeon 2021-07-16 14:52:09 +09:00
parent e4b60e92d4
commit 58090b1752
1 changed files with 12 additions and 20 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

32
fs/ksmbd/smb2pdu.c
View File

@ -1338,8 +1338,7 @@ static int ntlm_authenticate(struct ksmbd_work *work)
user = session_user(conn, req);
if (!user) {
ksmbd_debug(SMB, "Unknown user name or an error\n");
rsp->hdr.Status = STATUS_LOGON_FAILURE;
return -EINVAL;
return -EPERM;
}
/* Check for previous session */
@ -1363,8 +1362,7 @@ static int ntlm_authenticate(struct ksmbd_work *work)
if (user_guest(sess->user)) {
if (conn->sign) {
ksmbd_debug(SMB, "Guest login not allowed when signing enabled\n");
rsp->hdr.Status = STATUS_LOGON_FAILURE;
return -EACCES;
return -EPERM;
}
rsp->SessionFlags = SMB2_SESSION_FLAG_IS_GUEST_LE;
@ -1377,8 +1375,7 @@ static int ntlm_authenticate(struct ksmbd_work *work)
if (rc) {
set_user_flag(sess->user, KSMBD_USER_FLAG_BAD_PASSWORD);
ksmbd_debug(SMB, "authentication failed\n");
rsp->hdr.Status = STATUS_LOGON_FAILURE;
return -EINVAL;
return -EPERM;
}
/*
@ -1403,8 +1400,7 @@ static int ntlm_authenticate(struct ksmbd_work *work)
if (rc) {
ksmbd_debug(SMB,
"SMB3 encryption key generation failed\n");
rsp->hdr.Status = STATUS_LOGON_FAILURE;
return rc;
return -EINVAL;
}
sess->enc = true;
rsp->SessionFlags = SMB2_SESSION_FLAG_ENCRYPT_DATA_LE;
@ -1434,16 +1430,14 @@ binding_session:
rc = conn->ops->generate_signingkey(sess, conn);
if (rc) {
ksmbd_debug(SMB, "SMB3 signing key generation failed\n");
rsp->hdr.Status = STATUS_LOGON_FAILURE;
return rc;
return -EINVAL;
}
}
if (conn->dialect > SMB20_PROT_ID) {
if (!ksmbd_conn_lookup_dialect(conn)) {
pr_err("fail to verify the dialect\n");
rsp->hdr.Status = STATUS_USER_SESSION_DELETED;
return -EPERM;
return -ENOENT;
}
}
return 0;
@ -1483,8 +1477,7 @@ static int krb5_authenticate(struct ksmbd_work *work)
out_blob, &out_len);
if (retval) {
ksmbd_debug(SMB, "krb5 authentication failed\n");
rsp->hdr.Status = STATUS_LOGON_FAILURE;
return retval;
return -EINVAL;
}
rsp->SecurityBufferLength = cpu_to_le16(out_len);
inc_rfc1001_len(rsp, out_len - 1);
@ -1499,8 +1492,7 @@ static int krb5_authenticate(struct ksmbd_work *work)
if (retval) {
ksmbd_debug(SMB,
"SMB3 encryption key generation failed\n");
rsp->hdr.Status = STATUS_LOGON_FAILURE;
return retval;
return -EINVAL;
}
sess->enc = true;
rsp->SessionFlags = SMB2_SESSION_FLAG_ENCRYPT_DATA_LE;
@ -1524,16 +1516,14 @@ static int krb5_authenticate(struct ksmbd_work *work)
retval = conn->ops->generate_signingkey(sess, conn);
if (retval) {
ksmbd_debug(SMB, "SMB3 signing key generation failed\n");
rsp->hdr.Status = STATUS_LOGON_FAILURE;
return retval;
return -EINVAL;
}
}
if (conn->dialect > SMB20_PROT_ID) {
if (!ksmbd_conn_lookup_dialect(conn)) {
pr_err("fail to verify the dialect\n");
rsp->hdr.Status = STATUS_USER_SESSION_DELETED;
return -EPERM;
return -ENOENT;
}
}
return 0;
@ -1709,6 +1699,8 @@ out_err:
rsp->hdr.Status = STATUS_REQUEST_NOT_ACCEPTED;
else if (rc == -EFAULT)
rsp->hdr.Status = STATUS_NETWORK_SESSION_EXPIRED;
else if (rc == -ENOMEM)
rsp->hdr.Status = STATUS_INSUFFICIENT_RESOURCES;
else if (rc)
rsp->hdr.Status = STATUS_LOGON_FAILURE;