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2024-10-12 a5969cabbb4660eab42b6ef0412cbbd1200cf14d 
 kernel/fs/cifs/Kconfig
....@@ -1,3 +1,4 @@
1
+# SPDX-License-Identifier: GPL-2.0-only
12 config CIFS
23 	tristate "SMB3 and CIFS support (advanced network filesystem)"
34 	depends on INET
....@@ -9,12 +10,14 @@
910 	select CRYPTO_SHA512
1011 	select CRYPTO_CMAC
1112 	select CRYPTO_HMAC
12
-	select CRYPTO_ARC4
13
+	select CRYPTO_LIB_ARC4
1314 	select CRYPTO_AEAD2
1415 	select CRYPTO_CCM
16
+	select CRYPTO_GCM
1517 	select CRYPTO_ECB
1618 	select CRYPTO_AES
17
-	select CRYPTO_DES
19
+	select CRYPTO_LIB_DES
20
+	select KEYS
1821 	help
1922 	  This is the client VFS module for the SMB3 family of NAS protocols,
2023 	  (including support for the most recent, most secure dialect SMB3.1.1)
....@@ -108,7 +111,7 @@
108111 
109112 config CIFS_UPCALL
110113 	bool "Kerberos/SPNEGO advanced session setup"
111
-	depends on CIFS && KEYS
114
+	depends on CIFS
112115 	select DNS_RESOLVER
113116 	help
114117 	  Enables an upcall mechanism for CIFS which accesses userspace helper
....@@ -117,25 +120,25 @@
117120 	  secure Kerberos authentication is required). If unsure, say Y.
118121 
119122 config CIFS_XATTR
120
-        bool "CIFS extended attributes"
121
-        depends on CIFS
122
-        help
123
-          Extended attributes are name:value pairs associated with inodes by
124
-          the kernel or by users (see the attr(5) manual page for details).
125
-          CIFS maps the name of extended attributes beginning with the user
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-          namespace prefix to SMB/CIFS EAs.  EAs are stored on Windows
127
-          servers without the user namespace prefix, but their names are
128
-          seen by Linux cifs clients prefaced by the user namespace prefix.
129
-          The system namespace (used by some filesystems to store ACLs) is
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-          not supported at this time.
123
+	bool "CIFS extended attributes"
124
+	depends on CIFS
125
+	help
126
+	  Extended attributes are name:value pairs associated with inodes by
127
+	  the kernel or by users (see the attr(5) manual page for details).
128
+	  CIFS maps the name of extended attributes beginning with the user
129
+	  namespace prefix to SMB/CIFS EAs.  EAs are stored on Windows
130
+	  servers without the user namespace prefix, but their names are
131
+	  seen by Linux cifs clients prefaced by the user namespace prefix.
132
+	  The system namespace (used by some filesystems to store ACLs) is
133
+	  not supported at this time.
131134 
132
-          If unsure, say Y.
135
+	  If unsure, say Y.
133136 
134137 config CIFS_POSIX
135
-        bool "CIFS POSIX Extensions"
136
-        depends on CIFS && CIFS_ALLOW_INSECURE_LEGACY && CIFS_XATTR
137
-        help
138
-          Enabling this option will cause the cifs client to attempt to
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+	bool "CIFS POSIX Extensions"
139
+	depends on CIFS && CIFS_ALLOW_INSECURE_LEGACY && CIFS_XATTR
140
+	help
141
+	  Enabling this option will cause the cifs client to attempt to
139142 	  negotiate a newer dialect with servers, such as Samba 3.0.5
140143 	  or later, that optionally can handle more POSIX like (rather
141144 	  than Windows like) file behavior.  It also enables
....@@ -143,75 +146,76 @@
143146 	  (such as Samba 3.10 and later) which can negotiate
144147 	  CIFS POSIX ACL support.  If unsure, say N.
145148 
146
-config CIFS_ACL
147
-	  bool "Provide CIFS ACL support"
148
-	  depends on CIFS_XATTR && KEYS
149
-	  help
150
-	    Allows fetching CIFS/NTFS ACL from the server.  The DACL blob
151
-	    is handed over to the application/caller.  See the man
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-	    page for getcifsacl for more information.  If unsure, say Y.
153
-
154149 config CIFS_DEBUG
155150 	bool "Enable CIFS debugging routines"
156151 	default y
157152 	depends on CIFS
158153 	help
159
-	   Enabling this option adds helpful debugging messages to
160
-	   the cifs code which increases the size of the cifs module.
161
-	   If unsure, say Y.
154
+	  Enabling this option adds helpful debugging messages to
155
+	  the cifs code which increases the size of the cifs module.
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+	  If unsure, say Y.
157
+
162158 config CIFS_DEBUG2
163159 	bool "Enable additional CIFS debugging routines"
164160 	depends on CIFS_DEBUG
165161 	help
166
-	   Enabling this option adds a few more debugging routines
167
-	   to the cifs code which slightly increases the size of
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-	   the cifs module and can cause additional logging of debug
169
-	   messages in some error paths, slowing performance. This
170
-	   option can be turned off unless you are debugging
171
-	   cifs problems.  If unsure, say N.
162
+	  Enabling this option adds a few more debugging routines
163
+	  to the cifs code which slightly increases the size of
164
+	  the cifs module and can cause additional logging of debug
165
+	  messages in some error paths, slowing performance. This
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+	  option can be turned off unless you are debugging
167
+	  cifs problems.  If unsure, say N.
172168 
173169 config CIFS_DEBUG_DUMP_KEYS
174170 	bool "Dump encryption keys for offline decryption (Unsafe)"
175171 	depends on CIFS_DEBUG
176172 	help
177
-	   Enabling this will dump the encryption and decryption keys
178
-	   used to communicate on an encrypted share connection on the
179
-	   console. This allows Wireshark to decrypt and dissect
180
-	   encrypted network captures. Enable this carefully.
181
-	   If unsure, say N.
173
+	  Enabling this will dump the encryption and decryption keys
174
+	  used to communicate on an encrypted share connection on the
175
+	  console. This allows Wireshark to decrypt and dissect
176
+	  encrypted network captures. Enable this carefully.
177
+	  If unsure, say N.
182178 
183179 config CIFS_DFS_UPCALL
184
-	  bool "DFS feature support"
185
-	  depends on CIFS && KEYS
186
-	  select DNS_RESOLVER
187
-	  help
188
-	    Distributed File System (DFS) support is used to access shares
189
-	    transparently in an enterprise name space, even if the share
190
-	    moves to a different server.  This feature also enables
191
-	    an upcall mechanism for CIFS which contacts userspace helper
192
-	    utilities to provide server name resolution (host names to
193
-	    IP addresses) which is needed for implicit mounts of DFS junction
194
-	    points. If unsure, say Y.
180
+	bool "DFS feature support"
181
+	depends on CIFS
182
+	select DNS_RESOLVER
183
+	help
184
+	  Distributed File System (DFS) support is used to access shares
185
+	  transparently in an enterprise name space, even if the share
186
+	  moves to a different server.  This feature also enables
187
+	  an upcall mechanism for CIFS which contacts userspace helper
188
+	  utilities to provide server name resolution (host names to
189
+	  IP addresses) which is needed in order to reconnect to
190
+	  servers if their addresses change or for implicit mounts of
191
+	  DFS junction points. If unsure, say Y.
195192 
196193 config CIFS_NFSD_EXPORT
197
-	  bool "Allow nfsd to export CIFS file system"
198
-	  depends on CIFS && BROKEN
199
-	  help
200
-	   Allows NFS server to export a CIFS mounted share (nfsd over cifs)
194
+	bool "Allow nfsd to export CIFS file system"
195
+	depends on CIFS && BROKEN
196
+	help
197
+	  Allows NFS server to export a CIFS mounted share (nfsd over cifs)
201198 
202199 config CIFS_SMB_DIRECT
203
-	bool "SMB Direct support (Experimental)"
200
+	bool "SMB Direct support"
204201 	depends on CIFS=m && INFINIBAND && INFINIBAND_ADDR_TRANS || CIFS=y && INFINIBAND=y && INFINIBAND_ADDR_TRANS=y
205202 	help
206
-	  Enables SMB Direct experimental support for SMB 3.0, 3.02 and 3.1.1.
203
+	  Enables SMB Direct support for SMB 3.0, 3.02 and 3.1.1.
207204 	  SMB Direct allows transferring SMB packets over RDMA. If unsure,
208
-	  say N.
205
+	  say Y.
209206 
210207 config CIFS_FSCACHE
211
-	  bool "Provide CIFS client caching support"
212
-	  depends on CIFS=m && FSCACHE || CIFS=y && FSCACHE=y
213
-	  help
214
-	    Makes CIFS FS-Cache capable. Say Y here if you want your CIFS data
215
-	    to be cached locally on disk through the general filesystem cache
216
-	    manager. If unsure, say N.
208
+	bool "Provide CIFS client caching support"
209
+	depends on CIFS=m && FSCACHE || CIFS=y && FSCACHE=y
210
+	help
211
+	  Makes CIFS FS-Cache capable. Say Y here if you want your CIFS data
212
+	  to be cached locally on disk through the general filesystem cache
213
+	  manager. If unsure, say N.
217214 
215
+config CIFS_ROOT
216
+	bool "SMB root file system (Experimental)"
217
+	depends on CIFS=y && IP_PNP
218
+	help
219
+	  Enables root file system support over SMB protocol.
220
+
221
+	  Most people say N here.