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path: root/fs/smb/server/smb2pdu.c
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Diffstat (limited to 'fs/smb/server/smb2pdu.c')
-rw-r--r--fs/smb/server/smb2pdu.c115
1 files changed, 66 insertions, 49 deletions
diff --git a/fs/smb/server/smb2pdu.c b/fs/smb/server/smb2pdu.c
index d369b98a6e10..ba7a72a6a4f4 100644
--- a/fs/smb/server/smb2pdu.c
+++ b/fs/smb/server/smb2pdu.c
@@ -1414,7 +1414,10 @@ static struct ksmbd_user *session_user(struct ksmbd_conn *conn,
char *name;
unsigned int name_off, name_len, secbuf_len;
- secbuf_len = le16_to_cpu(req->SecurityBufferLength);
+ if (conn->use_spnego && conn->mechToken)
+ secbuf_len = conn->mechTokenLen;
+ else
+ secbuf_len = le16_to_cpu(req->SecurityBufferLength);
if (secbuf_len < sizeof(struct authenticate_message)) {
ksmbd_debug(SMB, "blob len %d too small\n", secbuf_len);
return NULL;
@@ -1505,7 +1508,10 @@ static int ntlm_authenticate(struct ksmbd_work *work,
struct authenticate_message *authblob;
authblob = user_authblob(conn, req);
- sz = le16_to_cpu(req->SecurityBufferLength);
+ if (conn->use_spnego && conn->mechToken)
+ sz = conn->mechTokenLen;
+ else
+ sz = le16_to_cpu(req->SecurityBufferLength);
rc = ksmbd_decode_ntlmssp_auth_blob(authblob, sz, conn, sess);
if (rc) {
set_user_flag(sess->user, KSMBD_USER_FLAG_BAD_PASSWORD);
@@ -1778,8 +1784,7 @@ int smb2_sess_setup(struct ksmbd_work *work)
negblob_off = le16_to_cpu(req->SecurityBufferOffset);
negblob_len = le16_to_cpu(req->SecurityBufferLength);
- if (negblob_off < offsetof(struct smb2_sess_setup_req, Buffer) ||
- negblob_len < offsetof(struct negotiate_message, NegotiateFlags)) {
+ if (negblob_off < offsetof(struct smb2_sess_setup_req, Buffer)) {
rc = -EINVAL;
goto out_err;
}
@@ -1788,8 +1793,15 @@ int smb2_sess_setup(struct ksmbd_work *work)
negblob_off);
if (decode_negotiation_token(conn, negblob, negblob_len) == 0) {
- if (conn->mechToken)
+ if (conn->mechToken) {
negblob = (struct negotiate_message *)conn->mechToken;
+ negblob_len = conn->mechTokenLen;
+ }
+ }
+
+ if (negblob_len < offsetof(struct negotiate_message, NegotiateFlags)) {
+ rc = -EINVAL;
+ goto out_err;
}
if (server_conf.auth_mechs & conn->auth_mechs) {
@@ -2311,11 +2323,12 @@ out:
* @eabuf: set info command buffer
* @buf_len: set info command buffer length
* @path: dentry path for get ea
+ * @get_write: get write access to a mount
*
* Return: 0 on success, otherwise error
*/
static int smb2_set_ea(struct smb2_ea_info *eabuf, unsigned int buf_len,
- const struct path *path)
+ const struct path *path, bool get_write)
{
struct mnt_idmap *idmap = mnt_idmap(path->mnt);
char *attr_name = NULL, *value;
@@ -2516,7 +2529,7 @@ static void smb2_new_xattrs(struct ksmbd_tree_connect *tcon, const struct path *
da.flags = XATTR_DOSINFO_ATTRIB | XATTR_DOSINFO_CREATE_TIME |
XATTR_DOSINFO_ITIME;
- rc = ksmbd_vfs_set_dos_attrib_xattr(mnt_idmap(path->mnt), path, &da, false);
+ rc = ksmbd_vfs_set_dos_attrib_xattr(mnt_idmap(path->mnt), path, &da, true);
if (rc)
ksmbd_debug(SMB, "failed to store file attribute into xattr\n");
}
@@ -2732,10 +2745,6 @@ int smb2_open(struct ksmbd_work *work)
}
}
- req_op_level = req->RequestedOplockLevel;
- if (req_op_level == SMB2_OPLOCK_LEVEL_LEASE)
- lc = parse_lease_state(req);
-
if (le32_to_cpu(req->ImpersonationLevel) > le32_to_cpu(IL_DELEGATE)) {
pr_err("Invalid impersonationlevel : 0x%x\n",
le32_to_cpu(req->ImpersonationLevel));
@@ -2975,7 +2984,7 @@ int smb2_open(struct ksmbd_work *work)
&may_flags);
if (!test_tree_conn_flag(tcon, KSMBD_TREE_CONN_FLAG_WRITABLE)) {
- if (open_flags & O_CREAT) {
+ if (open_flags & (O_CREAT | O_TRUNC)) {
ksmbd_debug(SMB,
"User does not have write permission\n");
rc = -EACCES;
@@ -3007,7 +3016,7 @@ int smb2_open(struct ksmbd_work *work)
rc = smb2_set_ea(&ea_buf->ea,
le32_to_cpu(ea_buf->ccontext.DataLength),
- &path);
+ &path, false);
if (rc == -EOPNOTSUPP)
rc = 0;
else if (rc)
@@ -3189,23 +3198,6 @@ int smb2_open(struct ksmbd_work *work)
goto err_out;
}
- rc = ksmbd_vfs_getattr(&path, &stat);
- if (rc)
- goto err_out;
-
- if (stat.result_mask & STATX_BTIME)
- fp->create_time = ksmbd_UnixTimeToNT(stat.btime);
- else
- fp->create_time = ksmbd_UnixTimeToNT(stat.ctime);
- if (req->FileAttributes || fp->f_ci->m_fattr == 0)
- fp->f_ci->m_fattr =
- cpu_to_le32(smb2_get_dos_mode(&stat, le32_to_cpu(req->FileAttributes)));
-
- if (!created)
- smb2_update_xattrs(tcon, &path, fp);
- else
- smb2_new_xattrs(tcon, &path, fp);
-
if (file_present || created)
ksmbd_vfs_kern_path_unlock(&parent_path, &path);
@@ -3215,6 +3207,10 @@ int smb2_open(struct ksmbd_work *work)
need_truncate = 1;
}
+ req_op_level = req->RequestedOplockLevel;
+ if (req_op_level == SMB2_OPLOCK_LEVEL_LEASE)
+ lc = parse_lease_state(req, S_ISDIR(file_inode(filp)->i_mode));
+
share_ret = ksmbd_smb_check_shared_mode(fp->filp, fp);
if (!test_share_config_flag(work->tcon->share_conf, KSMBD_SHARE_FLAG_OPLOCKS) ||
(req_op_level == SMB2_OPLOCK_LEVEL_LEASE &&
@@ -3225,6 +3221,13 @@ int smb2_open(struct ksmbd_work *work)
}
} else {
if (req_op_level == SMB2_OPLOCK_LEVEL_LEASE) {
+ /*
+ * Compare parent lease using parent key. If there is no
+ * a lease that has same parent key, Send lease break
+ * notification.
+ */
+ smb_send_parent_lease_break_noti(fp, lc);
+
req_op_level = smb2_map_lease_to_oplock(lc->req_state);
ksmbd_debug(SMB,
"lease req for(%s) req oplock state 0x%x, lease state 0x%x\n",
@@ -3295,6 +3298,23 @@ int smb2_open(struct ksmbd_work *work)
}
}
+ rc = ksmbd_vfs_getattr(&path, &stat);
+ if (rc)
+ goto err_out1;
+
+ if (stat.result_mask & STATX_BTIME)
+ fp->create_time = ksmbd_UnixTimeToNT(stat.btime);
+ else
+ fp->create_time = ksmbd_UnixTimeToNT(stat.ctime);
+ if (req->FileAttributes || fp->f_ci->m_fattr == 0)
+ fp->f_ci->m_fattr =
+ cpu_to_le32(smb2_get_dos_mode(&stat, le32_to_cpu(req->FileAttributes)));
+
+ if (!created)
+ smb2_update_xattrs(tcon, &path, fp);
+ else
+ smb2_new_xattrs(tcon, &path, fp);
+
memcpy(fp->client_guid, conn->ClientGUID, SMB2_CLIENT_GUID_SIZE);
rsp->StructureSize = cpu_to_le16(89);
@@ -5561,6 +5581,7 @@ static int smb2_rename(struct ksmbd_work *work,
if (!file_info->ReplaceIfExists)
flags = RENAME_NOREPLACE;
+ smb_break_all_levII_oplock(work, fp, 0);
rc = ksmbd_vfs_rename(work, &fp->filp->f_path, new_name, flags);
out:
kfree(new_name);
@@ -5936,12 +5957,6 @@ static int smb2_set_info_file(struct ksmbd_work *work, struct ksmbd_file *fp,
}
case FILE_RENAME_INFORMATION:
{
- if (!test_tree_conn_flag(work->tcon, KSMBD_TREE_CONN_FLAG_WRITABLE)) {
- ksmbd_debug(SMB,
- "User does not have write permission\n");
- return -EACCES;
- }
-
if (buf_len < sizeof(struct smb2_file_rename_info))
return -EINVAL;
@@ -5961,12 +5976,6 @@ static int smb2_set_info_file(struct ksmbd_work *work, struct ksmbd_file *fp,
}
case FILE_DISPOSITION_INFORMATION:
{
- if (!test_tree_conn_flag(work->tcon, KSMBD_TREE_CONN_FLAG_WRITABLE)) {
- ksmbd_debug(SMB,
- "User does not have write permission\n");
- return -EACCES;
- }
-
if (buf_len < sizeof(struct smb2_file_disposition_info))
return -EINVAL;
@@ -5985,7 +5994,7 @@ static int smb2_set_info_file(struct ksmbd_work *work, struct ksmbd_file *fp,
return -EINVAL;
return smb2_set_ea((struct smb2_ea_info *)req->Buffer,
- buf_len, &fp->filp->f_path);
+ buf_len, &fp->filp->f_path, true);
}
case FILE_POSITION_INFORMATION:
{
@@ -6028,7 +6037,7 @@ int smb2_set_info(struct ksmbd_work *work)
{
struct smb2_set_info_req *req;
struct smb2_set_info_rsp *rsp;
- struct ksmbd_file *fp;
+ struct ksmbd_file *fp = NULL;
int rc = 0;
unsigned int id = KSMBD_NO_FID, pid = KSMBD_NO_FID;
@@ -6048,6 +6057,13 @@ int smb2_set_info(struct ksmbd_work *work)
rsp = smb2_get_msg(work->response_buf);
}
+ if (!test_tree_conn_flag(work->tcon, KSMBD_TREE_CONN_FLAG_WRITABLE)) {
+ ksmbd_debug(SMB, "User does not have write permission\n");
+ pr_err("User does not have write permission\n");
+ rc = -EACCES;
+ goto err_out;
+ }
+
if (!has_file_id(id)) {
id = req->VolatileFileId;
pid = req->PersistentFileId;
@@ -7080,6 +7096,7 @@ skip:
smb2_remove_blocked_lock,
argv);
if (rc) {
+ kfree(argv);
err = -ENOMEM;
goto out;
}
@@ -8211,6 +8228,11 @@ static void smb21_lease_break_ack(struct ksmbd_work *work)
le32_to_cpu(req->LeaseState));
}
+ if (ret < 0) {
+ rsp->hdr.Status = err;
+ goto err_out;
+ }
+
lease_state = lease->state;
opinfo->op_state = OPLOCK_STATE_NONE;
wake_up_interruptible_all(&opinfo->oplock_q);
@@ -8218,11 +8240,6 @@ static void smb21_lease_break_ack(struct ksmbd_work *work)
wake_up_interruptible_all(&opinfo->oplock_brk);
opinfo_put(opinfo);
- if (ret < 0) {
- rsp->hdr.Status = err;
- goto err_out;
- }
-
rsp->StructureSize = cpu_to_le16(36);
rsp->Reserved = 0;
rsp->Flags = 0;
generated by cgit v1.2.3 (git 2.39.0) at 2024-08-18 15:18:31 +0300