ksmbd: reorder and document on-disk and netlink structures in headers
authorNamjae Jeon <namjae.jeon@samsung.com>
Tue, 29 Jun 2021 05:52:00 +0000 (14:52 +0900)
committerNamjae Jeon <namjae.jeon@samsung.com>
Wed, 30 Jun 2021 05:47:24 +0000 (14:47 +0900)
Reorder and document on-disk and netlink structures in headers.

This is a userspace ABI to communicate data between ksmbd and user IPC
daemon using netlink. This is added to track and cache user account DB
and share configuration info from userspace.

 - KSMBD_EVENT_HEARTBEAT_REQUEST(ksmbd_heartbeat)
   This event is to check whether user IPC daemon is alive. If user IPC
   daemon is dead, ksmbd keep existing connection till disconnecting and
   new connection will be denied.

 - KSMBD_EVENT_STARTING_UP(ksmbd_startup_request)
   This event is to receive the information that initializes the ksmbd
   server from the user IPC daemon and to start the server. The global
   section parameters are given from smb.conf as initialization
   information.

 - KSMBD_EVENT_SHUTTING_DOWN(ksmbd_shutdown_request)
   This event is to shutdown ksmbd server.

 - KSMBD_EVENT_LOGIN_REQUEST/RESPONSE(ksmbd_login_request/response)
   This event is to get user account info to user IPC daemon.

 - KSMBD_EVENT_SHARE_CONFIG_REQUEST/RESPONSE
   (ksmbd_share_config_request/response)
   This event is to get net share configuration info.

 - KSMBD_EVENT_TREE_CONNECT_REQUEST/RESPONSE
   (ksmbd_tree_connect_request/response)
   This event is to get session and tree connect info.

 - KSMBD_EVENT_TREE_DISCONNECT_REQUEST(ksmbd_tree_disconnect_request)
   This event is to send tree disconnect info to user IPC daemon.

 - KSMBD_EVENT_LOGOUT_REQUEST(ksmbd_logout_request)
   This event is to send logout request to user IPC daemon.

 - KSMBD_EVENT_RPC_REQUEST/RESPONSE(ksmbd_rpc_command)
   This event is to make DCE/RPC request like srvsvc, wkssvc, lsarpc,
   samr to be processed in userspace.

 - KSMBD_EVENT_SPNEGO_AUTHEN_REQUEST/RESPONSE
   (ksmbd_spnego_authen_request/response)
   This event is to make kerberos authentication to be processed in
   userspace.

Reviewed-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Namjae Jeon <namjae.jeon@samsung.com>
Signed-off-by: Steve French <stfrench@microsoft.com>
fs/ksmbd/ksmbd_netlink.h [new file with mode: 0644]
fs/ksmbd/ksmbd_server.h [deleted file]
fs/ksmbd/ksmbd_work.c
fs/ksmbd/mgmt/tree_connect.h
fs/ksmbd/smb2ops.c
fs/ksmbd/smbacl.c
fs/ksmbd/vfs.h
fs/ksmbd/xattr.h [new file with mode: 0644]

diff --git a/fs/ksmbd/ksmbd_netlink.h b/fs/ksmbd/ksmbd_netlink.h
new file mode 100644 (file)
index 0000000..2fbe2bc
--- /dev/null
@@ -0,0 +1,395 @@
+/* SPDX-License-Identifier: GPL-2.0-or-later */
+/*
+ *   Copyright (C) 2018 Samsung Electronics Co., Ltd.
+ *
+ *   linux-ksmbd-devel@lists.sourceforge.net
+ */
+
+#ifndef _LINUX_KSMBD_SERVER_H
+#define _LINUX_KSMBD_SERVER_H
+
+#include <linux/types.h>
+
+/*
+ * This is a userspace ABI to communicate data between ksmbd and user IPC
+ * daemon using netlink. This is added to track and cache user account DB
+ * and share configuration info from userspace.
+ *
+ *  - KSMBD_EVENT_HEARTBEAT_REQUEST(ksmbd_heartbeat)
+ *    This event is to check whether user IPC daemon is alive. If user IPC
+ *    daemon is dead, ksmbd keep existing connection till disconnecting and
+ *    new connection will be denied.
+ *
+ *  - KSMBD_EVENT_STARTING_UP(ksmbd_startup_request)
+ *    This event is to receive the information that initializes the ksmbd
+ *    server from the user IPC daemon and to start the server. The global
+ *    section parameters are given from smb.conf as initialization
+ *    information.
+ *
+ *  - KSMBD_EVENT_SHUTTING_DOWN(ksmbd_shutdown_request)
+ *    This event is to shutdown ksmbd server.
+ *
+ *  - KSMBD_EVENT_LOGIN_REQUEST/RESPONSE(ksmbd_login_request/response)
+ *    This event is to get user account info to user IPC daemon.
+ *
+ *  - KSMBD_EVENT_SHARE_CONFIG_REQUEST/RESPONSE(ksmbd_share_config_request/response)
+ *    This event is to get net share configuration info.
+ *
+ *  - KSMBD_EVENT_TREE_CONNECT_REQUEST/RESPONSE(ksmbd_tree_connect_request/response)
+ *    This event is to get session and tree connect info.
+ *
+ *  - KSMBD_EVENT_TREE_DISCONNECT_REQUEST(ksmbd_tree_disconnect_request)
+ *    This event is to send tree disconnect info to user IPC daemon.
+ *
+ *  - KSMBD_EVENT_LOGOUT_REQUEST(ksmbd_logout_request)
+ *    This event is to send logout request to user IPC daemon.
+ *
+ *  - KSMBD_EVENT_RPC_REQUEST/RESPONSE(ksmbd_rpc_command)
+ *    This event is to make DCE/RPC request like srvsvc, wkssvc, lsarpc,
+ *    samr to be processed in userspace.
+ *
+ *  - KSMBD_EVENT_SPNEGO_AUTHEN_REQUEST/RESPONSE(ksmbd_spnego_authen_request/response)
+ *    This event is to make kerberos authentication to be processed in
+ *    userspace.
+ */
+
+#define KSMBD_GENL_NAME                "SMBD_GENL"
+#define KSMBD_GENL_VERSION             0x01
+
+#define KSMBD_REQ_MAX_ACCOUNT_NAME_SZ  48
+#define KSMBD_REQ_MAX_HASH_SZ          18
+#define KSMBD_REQ_MAX_SHARE_NAME       64
+
+/*
+ * IPC heartbeat frame to check whether user IPC daemon is alive.
+ */
+struct ksmbd_heartbeat {
+       __u32   handle;
+};
+
+/*
+ * Global config flags.
+ */
+#define KSMBD_GLOBAL_FLAG_INVALID              (0)
+#define KSMBD_GLOBAL_FLAG_SMB2_LEASES          BIT(0)
+#define KSMBD_GLOBAL_FLAG_SMB2_ENCRYPTION      BIT(1)
+#define KSMBD_GLOBAL_FLAG_SMB3_MULTICHANNEL    BIT(2)
+
+/*
+ * IPC request for ksmbd server startup
+ */
+struct ksmbd_startup_request {
+       __u32   flags;                  /* Flags for global config */
+       __s32   signing;                /* Signing enabled */
+       __s8    min_prot[16];           /* The minimum SMB protocol version */
+       __s8    max_prot[16];           /* The maximum SMB protocol version */
+       __s8    netbios_name[16];
+       __s8    work_group[64];         /* Workgroup */
+       __s8    server_string[64];      /* Server string */
+       __u16   tcp_port;               /* tcp port */
+       __u16   ipc_timeout;            /*
+                                        * specifies the number of seconds
+                                        * server will wait for the userspace to
+                                        * reply to heartbeat frames.
+                                        */
+       __u32   deadtime;               /* Number of minutes of inactivity */
+       __u32   file_max;               /* Limits the maximum number of open files */
+       __u32   smb2_max_write;         /* MAX write size */
+       __u32   smb2_max_read;          /* MAX read size */
+       __u32   smb2_max_trans;         /* MAX trans size */
+       __u32   share_fake_fscaps;      /*
+                                        * Support some special application that
+                                        * makes QFSINFO calls to check whether
+                                        * we set the SPARSE_FILES bit (0x40).
+                                        */
+       __u32   sub_auth[3];            /* Subauth value for Security ID */
+       __u32   ifc_list_sz;            /* interfaces list size */
+       __s8    ____payload[];
+};
+
+#define KSMBD_STARTUP_CONFIG_INTERFACES(s)     ((s)->____payload)
+
+/*
+ * IPC request to shutdown ksmbd server.
+ */
+struct ksmbd_shutdown_request {
+       __s32   reserved;
+};
+
+/*
+ * IPC user login request.
+ */
+struct ksmbd_login_request {
+       __u32   handle;
+       __s8    account[KSMBD_REQ_MAX_ACCOUNT_NAME_SZ]; /* user account name */
+};
+
+/*
+ * IPC user login response.
+ */
+struct ksmbd_login_response {
+       __u32   handle;
+       __u32   gid;                                    /* group id */
+       __u32   uid;                                    /* user id */
+       __s8    account[KSMBD_REQ_MAX_ACCOUNT_NAME_SZ]; /* user account name */
+       __u16   status;
+       __u16   hash_sz;                        /* hash size */
+       __s8    hash[KSMBD_REQ_MAX_HASH_SZ];    /* password hash */
+};
+
+/*
+ * IPC request to fetch net share config.
+ */
+struct ksmbd_share_config_request {
+       __u32   handle;
+       __s8    share_name[KSMBD_REQ_MAX_SHARE_NAME]; /* share name */
+};
+
+/*
+ * IPC response to the net share config request.
+ */
+struct ksmbd_share_config_response {
+       __u32   handle;
+       __u32   flags;
+       __u16   create_mask;
+       __u16   directory_mask;
+       __u16   force_create_mode;
+       __u16   force_directory_mode;
+       __u16   force_uid;
+       __u16   force_gid;
+       __u32   veto_list_sz;
+       __s8    ____payload[];
+};
+
+#define KSMBD_SHARE_CONFIG_VETO_LIST(s)        ((s)->____payload)
+
+static inline char *
+ksmbd_share_config_path(struct ksmbd_share_config_response *sc)
+{
+       char *p = sc->____payload;
+
+       if (sc->veto_list_sz)
+               p += sc->veto_list_sz + 1;
+
+       return p;
+}
+
+/*
+ * IPC request for tree connection. This request include session and tree
+ * connect info from client.
+ */
+struct ksmbd_tree_connect_request {
+       __u32   handle;
+       __u16   account_flags;
+       __u16   flags;
+       __u64   session_id;
+       __u64   connect_id;
+       __s8    account[KSMBD_REQ_MAX_ACCOUNT_NAME_SZ];
+       __s8    share[KSMBD_REQ_MAX_SHARE_NAME];
+       __s8    peer_addr[64];
+};
+
+/*
+ * IPC Response structure for tree connection.
+ */
+struct ksmbd_tree_connect_response {
+       __u32   handle;
+       __u16   status;
+       __u16   connection_flags;
+};
+
+/*
+ * IPC Request struture to disconnect tree connection.
+ */
+struct ksmbd_tree_disconnect_request {
+       __u64   session_id;     /* session id */
+       __u64   connect_id;     /* tree connection id */
+};
+
+/*
+ * IPC Response structure to logout user account.
+ */
+struct ksmbd_logout_request {
+       __s8    account[KSMBD_REQ_MAX_ACCOUNT_NAME_SZ]; /* user account name */
+};
+
+/*
+ * RPC command structure to send rpc request like srvsvc or wkssvc to
+ * IPC user daemon.
+ */
+struct ksmbd_rpc_command {
+       __u32   handle;
+       __u32   flags;
+       __u32   payload_sz;
+       __u8    payload[];
+};
+
+/*
+ * IPC Request Kerberos authentication
+ */
+struct ksmbd_spnego_authen_request {
+       __u32   handle;
+       __u16   spnego_blob_len;        /* the length of spnego_blob */
+       __u8    spnego_blob[0];         /*
+                                        * the GSS token from SecurityBuffer of
+                                        * SMB2 SESSION SETUP request
+                                        */
+};
+
+/*
+ * Response data which includes the GSS token and the session key generated by
+ * user daemon.
+ */
+struct ksmbd_spnego_authen_response {
+       __u32   handle;
+       struct ksmbd_login_response login_response; /*
+                                                    * the login response with
+                                                    * a user identified by the
+                                                    * GSS token from a client
+                                                    */
+       __u16   session_key_len; /* the length of the session key */
+       __u16   spnego_blob_len; /*
+                                 * the length of  the GSS token which will be
+                                 * stored in SecurityBuffer of SMB2 SESSION
+                                 * SETUP response
+                                 */
+       __u8    payload[]; /* session key + AP_REP */
+};
+
+/*
+ * This also used as NETLINK attribute type value.
+ *
+ * NOTE:
+ * Response message type value should be equal to
+ * request message type value + 1.
+ */
+enum ksmbd_event {
+       KSMBD_EVENT_UNSPEC                      = 0,
+       KSMBD_EVENT_HEARTBEAT_REQUEST,
+
+       KSMBD_EVENT_STARTING_UP,
+       KSMBD_EVENT_SHUTTING_DOWN,
+
+       KSMBD_EVENT_LOGIN_REQUEST,
+       KSMBD_EVENT_LOGIN_RESPONSE              = 5,
+
+       KSMBD_EVENT_SHARE_CONFIG_REQUEST,
+       KSMBD_EVENT_SHARE_CONFIG_RESPONSE,
+
+       KSMBD_EVENT_TREE_CONNECT_REQUEST,
+       KSMBD_EVENT_TREE_CONNECT_RESPONSE,
+
+       KSMBD_EVENT_TREE_DISCONNECT_REQUEST     = 10,
+
+       KSMBD_EVENT_LOGOUT_REQUEST,
+
+       KSMBD_EVENT_RPC_REQUEST,
+       KSMBD_EVENT_RPC_RESPONSE,
+
+       KSMBD_EVENT_SPNEGO_AUTHEN_REQUEST,
+       KSMBD_EVENT_SPNEGO_AUTHEN_RESPONSE      = 15,
+
+       KSMBD_EVENT_MAX
+};
+
+/*
+ * Enumeration for IPC tree connect status.
+ */
+enum KSMBD_TREE_CONN_STATUS {
+       KSMBD_TREE_CONN_STATUS_OK               = 0,
+       KSMBD_TREE_CONN_STATUS_NOMEM,
+       KSMBD_TREE_CONN_STATUS_NO_SHARE,
+       KSMBD_TREE_CONN_STATUS_NO_USER,
+       KSMBD_TREE_CONN_STATUS_INVALID_USER,
+       KSMBD_TREE_CONN_STATUS_HOST_DENIED      = 5,
+       KSMBD_TREE_CONN_STATUS_CONN_EXIST,
+       KSMBD_TREE_CONN_STATUS_TOO_MANY_CONNS,
+       KSMBD_TREE_CONN_STATUS_TOO_MANY_SESSIONS,
+       KSMBD_TREE_CONN_STATUS_ERROR,
+};
+
+/*
+ * User config flags.
+ */
+#define KSMBD_USER_FLAG_INVALID                (0)
+#define KSMBD_USER_FLAG_OK             BIT(0)
+#define KSMBD_USER_FLAG_BAD_PASSWORD   BIT(1)
+#define KSMBD_USER_FLAG_BAD_UID                BIT(2)
+#define KSMBD_USER_FLAG_BAD_USER       BIT(3)
+#define KSMBD_USER_FLAG_GUEST_ACCOUNT  BIT(4)
+
+/*
+ * Share config flags.
+ */
+#define KSMBD_SHARE_FLAG_INVALID               (0)
+#define KSMBD_SHARE_FLAG_AVAILABLE             BIT(0)
+#define KSMBD_SHARE_FLAG_BROWSEABLE            BIT(1)
+#define KSMBD_SHARE_FLAG_WRITEABLE             BIT(2)
+#define KSMBD_SHARE_FLAG_READONLY              BIT(3)
+#define KSMBD_SHARE_FLAG_GUEST_OK              BIT(4)
+#define KSMBD_SHARE_FLAG_GUEST_ONLY            BIT(5)
+#define KSMBD_SHARE_FLAG_STORE_DOS_ATTRS       BIT(6)
+#define KSMBD_SHARE_FLAG_OPLOCKS               BIT(7)
+#define KSMBD_SHARE_FLAG_PIPE                  BIT(8)
+#define KSMBD_SHARE_FLAG_HIDE_DOT_FILES                BIT(9)
+#define KSMBD_SHARE_FLAG_INHERIT_OWNER         BIT(10)
+#define KSMBD_SHARE_FLAG_STREAMS               BIT(11)
+#define KSMBD_SHARE_FLAG_FOLLOW_SYMLINKS       BIT(12)
+#define KSMBD_SHARE_FLAG_ACL_XATTR             BIT(13)
+
+/*
+ * Tree connect request flags.
+ */
+#define KSMBD_TREE_CONN_FLAG_REQUEST_SMB1      (0)
+#define KSMBD_TREE_CONN_FLAG_REQUEST_IPV6      BIT(0)
+#define KSMBD_TREE_CONN_FLAG_REQUEST_SMB2      BIT(1)
+
+/*
+ * Tree connect flags.
+ */
+#define KSMBD_TREE_CONN_FLAG_GUEST_ACCOUNT     BIT(0)
+#define KSMBD_TREE_CONN_FLAG_READ_ONLY         BIT(1)
+#define KSMBD_TREE_CONN_FLAG_WRITABLE          BIT(2)
+#define KSMBD_TREE_CONN_FLAG_ADMIN_ACCOUNT     BIT(3)
+
+/*
+ * RPC over IPC.
+ */
+#define KSMBD_RPC_METHOD_RETURN                BIT(0)
+#define KSMBD_RPC_SRVSVC_METHOD_INVOKE BIT(1)
+#define KSMBD_RPC_SRVSVC_METHOD_RETURN (KSMBD_RPC_SRVSVC_METHOD_INVOKE | KSMBD_RPC_METHOD_RETURN)
+#define KSMBD_RPC_WKSSVC_METHOD_INVOKE BIT(2)
+#define KSMBD_RPC_WKSSVC_METHOD_RETURN (KSMBD_RPC_WKSSVC_METHOD_INVOKE | KSMBD_RPC_METHOD_RETURN)
+#define KSMBD_RPC_IOCTL_METHOD         (BIT(3) | KSMBD_RPC_METHOD_RETURN)
+#define KSMBD_RPC_OPEN_METHOD          BIT(4)
+#define KSMBD_RPC_WRITE_METHOD         BIT(5)
+#define KSMBD_RPC_READ_METHOD          (BIT(6) | KSMBD_RPC_METHOD_RETURN)
+#define KSMBD_RPC_CLOSE_METHOD         BIT(7)
+#define KSMBD_RPC_RAP_METHOD           (BIT(8) | KSMBD_RPC_METHOD_RETURN)
+#define KSMBD_RPC_RESTRICTED_CONTEXT   BIT(9)
+#define KSMBD_RPC_SAMR_METHOD_INVOKE   BIT(10)
+#define KSMBD_RPC_SAMR_METHOD_RETURN   (KSMBD_RPC_SAMR_METHOD_INVOKE | KSMBD_RPC_METHOD_RETURN)
+#define KSMBD_RPC_LSARPC_METHOD_INVOKE BIT(11)
+#define KSMBD_RPC_LSARPC_METHOD_RETURN (KSMBD_RPC_LSARPC_METHOD_INVOKE | KSMBD_RPC_METHOD_RETURN)
+
+/*
+ * RPC status definitions.
+ */
+#define KSMBD_RPC_OK                   0
+#define KSMBD_RPC_EBAD_FUNC            0x00000001
+#define KSMBD_RPC_EACCESS_DENIED       0x00000005
+#define KSMBD_RPC_EBAD_FID             0x00000006
+#define KSMBD_RPC_ENOMEM               0x00000008
+#define KSMBD_RPC_EBAD_DATA            0x0000000D
+#define KSMBD_RPC_ENOTIMPLEMENTED      0x00000040
+#define KSMBD_RPC_EINVALID_PARAMETER   0x00000057
+#define KSMBD_RPC_EMORE_DATA           0x000000EA
+#define KSMBD_RPC_EINVALID_LEVEL       0x0000007C
+#define KSMBD_RPC_SOME_NOT_MAPPED      0x00000107
+
+#define KSMBD_CONFIG_OPT_DISABLED      0
+#define KSMBD_CONFIG_OPT_ENABLED       1
+#define KSMBD_CONFIG_OPT_AUTO          2
+#define KSMBD_CONFIG_OPT_MANDATORY     3
+
+#endif /* _LINUX_KSMBD_SERVER_H */
diff --git a/fs/ksmbd/ksmbd_server.h b/fs/ksmbd/ksmbd_server.h
deleted file mode 100644 (file)
index 55b7602..0000000
+++ /dev/null
@@ -1,282 +0,0 @@
-/* SPDX-License-Identifier: GPL-2.0-or-later */
-/*
- *   Copyright (C) 2018 Samsung Electronics Co., Ltd.
- *
- *   linux-ksmbd-devel@lists.sourceforge.net
- */
-
-#ifndef _LINUX_KSMBD_SERVER_H
-#define _LINUX_KSMBD_SERVER_H
-
-#include <linux/types.h>
-
-#define KSMBD_GENL_NAME                "SMBD_GENL"
-#define KSMBD_GENL_VERSION             0x01
-
-#define KSMBD_REQ_MAX_ACCOUNT_NAME_SZ  48
-#define KSMBD_REQ_MAX_HASH_SZ          18
-#define KSMBD_REQ_MAX_SHARE_NAME       64
-
-struct ksmbd_heartbeat {
-       __u32   handle;
-};
-
-/*
- * Global config flags.
- */
-#define KSMBD_GLOBAL_FLAG_INVALID              (0)
-#define KSMBD_GLOBAL_FLAG_SMB2_LEASES          BIT(0)
-#define KSMBD_GLOBAL_FLAG_SMB2_ENCRYPTION      BIT(1)
-#define KSMBD_GLOBAL_FLAG_SMB3_MULTICHANNEL    BIT(2)
-
-struct ksmbd_startup_request {
-       __u32   flags;
-       __s32   signing;
-       __s8    min_prot[16];
-       __s8    max_prot[16];
-       __s8    netbios_name[16];
-       __s8    work_group[64];
-       __s8    server_string[64];
-       __u16   tcp_port;
-       __u16   ipc_timeout;
-       __u32   deadtime;
-       __u32   file_max;
-       __u32   smb2_max_write;
-       __u32   smb2_max_read;
-       __u32   smb2_max_trans;
-       __u32   share_fake_fscaps;
-       __u32   sub_auth[3];
-       __u32   ifc_list_sz;
-       __s8    ____payload[];
-};
-
-#define KSMBD_STARTUP_CONFIG_INTERFACES(s)     ((s)->____payload)
-
-struct ksmbd_shutdown_request {
-       __s32   reserved;
-};
-
-struct ksmbd_login_request {
-       __u32   handle;
-       __s8    account[KSMBD_REQ_MAX_ACCOUNT_NAME_SZ];
-};
-
-struct ksmbd_login_response {
-       __u32   handle;
-       __u32   gid;
-       __u32   uid;
-       __s8    account[KSMBD_REQ_MAX_ACCOUNT_NAME_SZ];
-       __u16   status;
-       __u16   hash_sz;
-       __s8    hash[KSMBD_REQ_MAX_HASH_SZ];
-};
-
-struct ksmbd_share_config_request {
-       __u32   handle;
-       __s8    share_name[KSMBD_REQ_MAX_SHARE_NAME];
-};
-
-struct ksmbd_share_config_response {
-       __u32   handle;
-       __u32   flags;
-       __u16   create_mask;
-       __u16   directory_mask;
-       __u16   force_create_mode;
-       __u16   force_directory_mode;
-       __u16   force_uid;
-       __u16   force_gid;
-       __u32   veto_list_sz;
-       __s8    ____payload[];
-};
-
-#define KSMBD_SHARE_CONFIG_VETO_LIST(s)        ((s)->____payload)
-
-static inline char *
-ksmbd_share_config_path(struct ksmbd_share_config_response *sc)
-{
-       char *p = sc->____payload;
-
-       if (sc->veto_list_sz)
-               p += sc->veto_list_sz + 1;
-
-       return p;
-}
-
-struct ksmbd_tree_connect_request {
-       __u32   handle;
-       __u16   account_flags;
-       __u16   flags;
-       __u64   session_id;
-       __u64   connect_id;
-       __s8    account[KSMBD_REQ_MAX_ACCOUNT_NAME_SZ];
-       __s8    share[KSMBD_REQ_MAX_SHARE_NAME];
-       __s8    peer_addr[64];
-};
-
-struct ksmbd_tree_connect_response {
-       __u32   handle;
-       __u16   status;
-       __u16   connection_flags;
-};
-
-struct ksmbd_tree_disconnect_request {
-       __u64   session_id;
-       __u64   connect_id;
-};
-
-struct ksmbd_logout_request {
-       __s8    account[KSMBD_REQ_MAX_ACCOUNT_NAME_SZ];
-};
-
-struct ksmbd_rpc_command {
-       __u32   handle;
-       __u32   flags;
-       __u32   payload_sz;
-       __u8    payload[];
-};
-
-struct ksmbd_spnego_authen_request {
-       __u32   handle;
-       __u16   spnego_blob_len;
-       __u8    spnego_blob[0];
-};
-
-struct ksmbd_spnego_authen_response {
-       __u32   handle;
-       struct ksmbd_login_response     login_response;
-       __u16   session_key_len;
-       __u16   spnego_blob_len;
-       __u8    payload[];              /* session key + AP_REP */
-};
-
-/*
- * This also used as NETLINK attribute type value.
- *
- * NOTE:
- * Response message type value should be equal to
- * request message type value + 1.
- */
-enum ksmbd_event {
-       KSMBD_EVENT_UNSPEC                      = 0,
-       KSMBD_EVENT_HEARTBEAT_REQUEST,
-
-       KSMBD_EVENT_STARTING_UP,
-       KSMBD_EVENT_SHUTTING_DOWN,
-
-       KSMBD_EVENT_LOGIN_REQUEST,
-       KSMBD_EVENT_LOGIN_RESPONSE              = 5,
-
-       KSMBD_EVENT_SHARE_CONFIG_REQUEST,
-       KSMBD_EVENT_SHARE_CONFIG_RESPONSE,
-
-       KSMBD_EVENT_TREE_CONNECT_REQUEST,
-       KSMBD_EVENT_TREE_CONNECT_RESPONSE,
-
-       KSMBD_EVENT_TREE_DISCONNECT_REQUEST     = 10,
-
-       KSMBD_EVENT_LOGOUT_REQUEST,
-
-       KSMBD_EVENT_RPC_REQUEST,
-       KSMBD_EVENT_RPC_RESPONSE,
-
-       KSMBD_EVENT_SPNEGO_AUTHEN_REQUEST,
-       KSMBD_EVENT_SPNEGO_AUTHEN_RESPONSE      = 15,
-
-       KSMBD_EVENT_MAX
-};
-
-enum KSMBD_TREE_CONN_STATUS {
-       KSMBD_TREE_CONN_STATUS_OK               = 0,
-       KSMBD_TREE_CONN_STATUS_NOMEM,
-       KSMBD_TREE_CONN_STATUS_NO_SHARE,
-       KSMBD_TREE_CONN_STATUS_NO_USER,
-       KSMBD_TREE_CONN_STATUS_INVALID_USER,
-       KSMBD_TREE_CONN_STATUS_HOST_DENIED      = 5,
-       KSMBD_TREE_CONN_STATUS_CONN_EXIST,
-       KSMBD_TREE_CONN_STATUS_TOO_MANY_CONNS,
-       KSMBD_TREE_CONN_STATUS_TOO_MANY_SESSIONS,
-       KSMBD_TREE_CONN_STATUS_ERROR,
-};
-
-/*
- * User config flags.
- */
-#define KSMBD_USER_FLAG_INVALID                (0)
-#define KSMBD_USER_FLAG_OK             BIT(0)
-#define KSMBD_USER_FLAG_BAD_PASSWORD   BIT(1)
-#define KSMBD_USER_FLAG_BAD_UID                BIT(2)
-#define KSMBD_USER_FLAG_BAD_USER       BIT(3)
-#define KSMBD_USER_FLAG_GUEST_ACCOUNT  BIT(4)
-
-/*
- * Share config flags.
- */
-#define KSMBD_SHARE_FLAG_INVALID               (0)
-#define KSMBD_SHARE_FLAG_AVAILABLE             BIT(0)
-#define KSMBD_SHARE_FLAG_BROWSEABLE            BIT(1)
-#define KSMBD_SHARE_FLAG_WRITEABLE             BIT(2)
-#define KSMBD_SHARE_FLAG_READONLY              BIT(3)
-#define KSMBD_SHARE_FLAG_GUEST_OK              BIT(4)
-#define KSMBD_SHARE_FLAG_GUEST_ONLY            BIT(5)
-#define KSMBD_SHARE_FLAG_STORE_DOS_ATTRS       BIT(6)
-#define KSMBD_SHARE_FLAG_OPLOCKS               BIT(7)
-#define KSMBD_SHARE_FLAG_PIPE                  BIT(8)
-#define KSMBD_SHARE_FLAG_HIDE_DOT_FILES                BIT(9)
-#define KSMBD_SHARE_FLAG_INHERIT_OWNER         BIT(10)
-#define KSMBD_SHARE_FLAG_STREAMS               BIT(11)
-#define KSMBD_SHARE_FLAG_FOLLOW_SYMLINKS       BIT(12)
-#define KSMBD_SHARE_FLAG_ACL_XATTR             BIT(13)
-
-/*
- * Tree connect request flags.
- */
-#define KSMBD_TREE_CONN_FLAG_REQUEST_SMB1      (0)
-#define KSMBD_TREE_CONN_FLAG_REQUEST_IPV6      BIT(0)
-#define KSMBD_TREE_CONN_FLAG_REQUEST_SMB2      BIT(1)
-
-/*
- * Tree connect flags.
- */
-#define KSMBD_TREE_CONN_FLAG_GUEST_ACCOUNT     BIT(0)
-#define KSMBD_TREE_CONN_FLAG_READ_ONLY         BIT(1)
-#define KSMBD_TREE_CONN_FLAG_WRITABLE          BIT(2)
-#define KSMBD_TREE_CONN_FLAG_ADMIN_ACCOUNT     BIT(3)
-
-/*
- * RPC over IPC.
- */
-#define KSMBD_RPC_METHOD_RETURN                BIT(0)
-#define KSMBD_RPC_SRVSVC_METHOD_INVOKE BIT(1)
-#define KSMBD_RPC_SRVSVC_METHOD_RETURN (KSMBD_RPC_SRVSVC_METHOD_INVOKE | KSMBD_RPC_METHOD_RETURN)
-#define KSMBD_RPC_WKSSVC_METHOD_INVOKE BIT(2)
-#define KSMBD_RPC_WKSSVC_METHOD_RETURN (KSMBD_RPC_WKSSVC_METHOD_INVOKE | KSMBD_RPC_METHOD_RETURN)
-#define KSMBD_RPC_IOCTL_METHOD         (BIT(3) | KSMBD_RPC_METHOD_RETURN)
-#define KSMBD_RPC_OPEN_METHOD          BIT(4)
-#define KSMBD_RPC_WRITE_METHOD         BIT(5)
-#define KSMBD_RPC_READ_METHOD          (BIT(6) | KSMBD_RPC_METHOD_RETURN)
-#define KSMBD_RPC_CLOSE_METHOD         BIT(7)
-#define KSMBD_RPC_RAP_METHOD           (BIT(8) | KSMBD_RPC_METHOD_RETURN)
-#define KSMBD_RPC_RESTRICTED_CONTEXT   BIT(9)
-#define KSMBD_RPC_SAMR_METHOD_INVOKE   BIT(10)
-#define KSMBD_RPC_SAMR_METHOD_RETURN   (KSMBD_RPC_SAMR_METHOD_INVOKE | KSMBD_RPC_METHOD_RETURN)
-#define KSMBD_RPC_LSARPC_METHOD_INVOKE BIT(11)
-#define KSMBD_RPC_LSARPC_METHOD_RETURN (KSMBD_RPC_LSARPC_METHOD_INVOKE | KSMBD_RPC_METHOD_RETURN)
-
-#define KSMBD_RPC_OK                   0
-#define KSMBD_RPC_EBAD_FUNC            0x00000001
-#define KSMBD_RPC_EACCESS_DENIED       0x00000005
-#define KSMBD_RPC_EBAD_FID             0x00000006
-#define KSMBD_RPC_ENOMEM               0x00000008
-#define KSMBD_RPC_EBAD_DATA            0x0000000D
-#define KSMBD_RPC_ENOTIMPLEMENTED      0x00000040
-#define KSMBD_RPC_EINVALID_PARAMETER   0x00000057
-#define KSMBD_RPC_EMORE_DATA           0x000000EA
-#define KSMBD_RPC_EINVALID_LEVEL       0x0000007C
-#define KSMBD_RPC_SOME_NOT_MAPPED      0x00000107
-
-#define KSMBD_CONFIG_OPT_DISABLED      0
-#define KSMBD_CONFIG_OPT_ENABLED       1
-#define KSMBD_CONFIG_OPT_AUTO          2
-#define KSMBD_CONFIG_OPT_MANDATORY     3
-
-#endif /* _LINUX_KSMBD_SERVER_H */
index 7c91445..fd58eb4 100644 (file)
@@ -12,7 +12,6 @@
 #include "connection.h"
 #include "ksmbd_work.h"
 #include "mgmt/ksmbd_ida.h"
-#include "ksmbd_server.h"
 
 static struct kmem_cache *work_cache;
 static struct workqueue_struct *ksmbd_wq;
index 4e40ec3..18e2a99 100644 (file)
@@ -8,7 +8,7 @@
 
 #include <linux/hashtable.h>
 
-#include "../ksmbd_server.h"
+#include "../ksmbd_netlink.h"
 
 struct ksmbd_share_config;
 struct ksmbd_user;
index f7e5f21..8262908 100644 (file)
@@ -12,7 +12,6 @@
 #include "connection.h"
 #include "smb_common.h"
 #include "server.h"
-#include "ksmbd_server.h"
 
 static struct smb_version_values smb21_server_values = {
        .version_string = SMB21_VERSION_STRING,
index 958937a..d385c70 100644 (file)
@@ -14,7 +14,6 @@
 #include "smb_common.h"
 #include "server.h"
 #include "misc.h"
-#include "ksmbd_server.h"
 #include "mgmt/share_config.h"
 
 static const struct smb_sid domain = {1, 4, {0, 0, 0, 0, 0, 5},
index ba12fea..e30174a 100644 (file)
 #include <linux/posix_acl.h>
 
 #include "smbacl.h"
-
-/* STREAM XATTR PREFIX */
-#define STREAM_PREFIX                  "DosStream."
-#define STREAM_PREFIX_LEN              (sizeof(STREAM_PREFIX) - 1)
-#define XATTR_NAME_STREAM              (XATTR_USER_PREFIX STREAM_PREFIX)
-#define XATTR_NAME_STREAM_LEN          (sizeof(XATTR_NAME_STREAM) - 1)
-
-enum {
-       XATTR_DOSINFO_ATTRIB            = 0x00000001,
-       XATTR_DOSINFO_EA_SIZE           = 0x00000002,
-       XATTR_DOSINFO_SIZE              = 0x00000004,
-       XATTR_DOSINFO_ALLOC_SIZE        = 0x00000008,
-       XATTR_DOSINFO_CREATE_TIME       = 0x00000010,
-       XATTR_DOSINFO_CHANGE_TIME       = 0x00000020,
-       XATTR_DOSINFO_ITIME             = 0x00000040
-};
-
-struct xattr_dos_attrib {
-       __u16   version;
-       __u32   flags;
-       __u32   attr;
-       __u32   ea_size;
-       __u64   size;
-       __u64   alloc_size;
-       __u64   create_time;
-       __u64   change_time;
-       __u64   itime;
-};
-
-/* DOS ATTRIBUITE XATTR PREFIX */
-#define DOS_ATTRIBUTE_PREFIX           "DOSATTRIB"
-#define DOS_ATTRIBUTE_PREFIX_LEN       (sizeof(DOS_ATTRIBUTE_PREFIX) - 1)
-#define XATTR_NAME_DOS_ATTRIBUTE       \
-               (XATTR_USER_PREFIX DOS_ATTRIBUTE_PREFIX)
-#define XATTR_NAME_DOS_ATTRIBUTE_LEN   \
-               (sizeof(XATTR_USER_PREFIX DOS_ATTRIBUTE_PREFIX) - 1)
-
-#define XATTR_SD_HASH_TYPE_SHA256      0x1
-#define XATTR_SD_HASH_SIZE             64
-
-#define SMB_ACL_READ                   4
-#define SMB_ACL_WRITE                  2
-#define SMB_ACL_EXECUTE                        1
-
-enum {
-       SMB_ACL_TAG_INVALID = 0,
-       SMB_ACL_USER,
-       SMB_ACL_USER_OBJ,
-       SMB_ACL_GROUP,
-       SMB_ACL_GROUP_OBJ,
-       SMB_ACL_OTHER,
-       SMB_ACL_MASK
-};
-
-struct xattr_acl_entry {
-       int type;
-       uid_t uid;
-       gid_t gid;
-       mode_t perm;
-};
-
-struct xattr_smb_acl {
-       int count;
-       int next;
-       struct xattr_acl_entry entries[0];
-};
-
-struct xattr_ntacl {
-       __u16   version;
-       void    *sd_buf;
-       __u32   sd_size;
-       __u16   hash_type;
-       __u8    desc[10];
-       __u16   desc_len;
-       __u64   current_time;
-       __u8    hash[XATTR_SD_HASH_SIZE];
-       __u8    posix_acl_hash[XATTR_SD_HASH_SIZE];
-};
-
-/* SECURITY DESCRIPTOR XATTR PREFIX */
-#define SD_PREFIX                      "NTACL"
-#define SD_PREFIX_LEN  (sizeof(SD_PREFIX) - 1)
-#define XATTR_NAME_SD  \
-               (XATTR_SECURITY_PREFIX SD_PREFIX)
-#define XATTR_NAME_SD_LEN      \
-               (sizeof(XATTR_SECURITY_PREFIX SD_PREFIX) - 1)
+#include "xattr.h"
 
 /*
  * Enumeration for stream type.
diff --git a/fs/ksmbd/xattr.h b/fs/ksmbd/xattr.h
new file mode 100644 (file)
index 0000000..8857c01
--- /dev/null
@@ -0,0 +1,122 @@
+/* SPDX-License-Identifier: GPL-2.0-or-later */
+/*
+ *   Copyright (C) 2021 Samsung Electronics Co., Ltd.
+ */
+
+#ifndef __XATTR_H__
+#define __XATTR_H__
+
+/*
+ * These are on-disk structures to store additional metadata into xattr to
+ * reproduce windows filesystem semantics. And they are encoded with NDR to
+ * compatible with samba's xattr meta format. The compatibility with samba
+ * is important because it can lose the information(file attribute,
+ * creation time, acls) about the existing files when switching between
+ * ksmbd and samba.
+ */
+
+/*
+ * Dos attribute flags used for what variable is valid.
+ */
+enum {
+       XATTR_DOSINFO_ATTRIB            = 0x00000001,
+       XATTR_DOSINFO_EA_SIZE           = 0x00000002,
+       XATTR_DOSINFO_SIZE              = 0x00000004,
+       XATTR_DOSINFO_ALLOC_SIZE        = 0x00000008,
+       XATTR_DOSINFO_CREATE_TIME       = 0x00000010,
+       XATTR_DOSINFO_CHANGE_TIME       = 0x00000020,
+       XATTR_DOSINFO_ITIME             = 0x00000040
+};
+
+/*
+ * Dos attribute structure which is compatible with samba's one.
+ * Storing it into the xattr named "DOSATTRIB" separately from inode
+ * allows ksmbd to faithfully reproduce windows filesystem semantics
+ * on top of a POSIX filesystem.
+ */
+struct xattr_dos_attrib {
+       __u16   version;        /* version 3 or version 4 */
+       __u32   flags;          /* valid flags */
+       __u32   attr;           /* Dos attribute */
+       __u32   ea_size;        /* EA size */
+       __u64   size;
+       __u64   alloc_size;
+       __u64   create_time;    /* File creation time */
+       __u64   change_time;    /* File change time */
+       __u64   itime;          /* Invented/Initial time */
+};
+
+/*
+ * Enumeration is used for computing posix acl hash.
+ */
+enum {
+       SMB_ACL_TAG_INVALID = 0,
+       SMB_ACL_USER,
+       SMB_ACL_USER_OBJ,
+       SMB_ACL_GROUP,
+       SMB_ACL_GROUP_OBJ,
+       SMB_ACL_OTHER,
+       SMB_ACL_MASK
+};
+
+#define SMB_ACL_READ                   4
+#define SMB_ACL_WRITE                  2
+#define SMB_ACL_EXECUTE                        1
+
+struct xattr_acl_entry {
+       int type;
+       uid_t uid;
+       gid_t gid;
+       mode_t perm;
+};
+
+/*
+ * xattr_smb_acl structure is used for computing posix acl hash.
+ */
+struct xattr_smb_acl {
+       int count;
+       int next;
+       struct xattr_acl_entry entries[0];
+};
+
+/* 64bytes hash in xattr_ntacl is computed with sha256 */
+#define XATTR_SD_HASH_TYPE_SHA256      0x1
+#define XATTR_SD_HASH_SIZE             64
+
+/*
+ * xattr_ntacl is used for storing ntacl and hashes.
+ * Hash is used for checking valid posix acl and ntacl in xattr.
+ */
+struct xattr_ntacl {
+       __u16   version; /* version 4*/
+       void    *sd_buf;
+       __u32   sd_size;
+       __u16   hash_type; /* hash type */
+       __u8    desc[10]; /* posix_acl description */
+       __u16   desc_len;
+       __u64   current_time;
+       __u8    hash[XATTR_SD_HASH_SIZE]; /* 64bytes hash for ntacl */
+       __u8    posix_acl_hash[XATTR_SD_HASH_SIZE]; /* 64bytes hash for posix acl */
+};
+
+/* DOS ATTRIBUITE XATTR PREFIX */
+#define DOS_ATTRIBUTE_PREFIX           "DOSATTRIB"
+#define DOS_ATTRIBUTE_PREFIX_LEN       (sizeof(DOS_ATTRIBUTE_PREFIX) - 1)
+#define XATTR_NAME_DOS_ATTRIBUTE       (XATTR_USER_PREFIX DOS_ATTRIBUTE_PREFIX)
+#define XATTR_NAME_DOS_ATTRIBUTE_LEN   \
+               (sizeof(XATTR_USER_PREFIX DOS_ATTRIBUTE_PREFIX) - 1)
+
+/* STREAM XATTR PREFIX */
+#define STREAM_PREFIX                  "DosStream."
+#define STREAM_PREFIX_LEN              (sizeof(STREAM_PREFIX) - 1)
+#define XATTR_NAME_STREAM              (XATTR_USER_PREFIX STREAM_PREFIX)
+#define XATTR_NAME_STREAM_LEN          (sizeof(XATTR_NAME_STREAM) - 1)
+
+/* SECURITY DESCRIPTOR(NTACL) XATTR PREFIX */
+#define SD_PREFIX                      "NTACL"
+#define SD_PREFIX_LEN  (sizeof(SD_PREFIX) - 1)
+#define XATTR_NAME_SD  (XATTR_SECURITY_PREFIX SD_PREFIX)
+#define XATTR_NAME_SD_LEN      \
+               (sizeof(XATTR_SECURITY_PREFIX SD_PREFIX) - 1)
+
+#endif /* __XATTR_H__ */