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-rw-r--r--fs/ksmbd/ksmbd_netlink.h (renamed from fs/ksmbd/ksmbd_server.h)177
-rw-r--r--fs/ksmbd/ksmbd_work.c1
-rw-r--r--fs/ksmbd/mgmt/tree_connect.h2
-rw-r--r--fs/ksmbd/smb2ops.c1
-rw-r--r--fs/ksmbd/smbacl.c1
-rw-r--r--fs/ksmbd/vfs.h87
-rw-r--r--fs/ksmbd/xattr.h122
7 files changed, 269 insertions, 122 deletions
diff --git a/fs/ksmbd/ksmbd_server.h b/fs/ksmbd/ksmbd_netlink.h
index 55b7602b79bd..2fbe2bc1e093 100644
--- a/fs/ksmbd/ksmbd_server.h
+++ b/fs/ksmbd/ksmbd_netlink.h
@@ -10,6 +10,49 @@
#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
@@ -17,6 +60,9 @@
#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;
};
@@ -29,53 +75,79 @@ struct ksmbd_heartbeat {
#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;
- __s32 signing;
- __s8 min_prot[16];
- __s8 max_prot[16];
+ __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];
- __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 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];
+ __s8 account[KSMBD_REQ_MAX_ACCOUNT_NAME_SZ]; /* user account name */
};
+/*
+ * IPC user login response.
+ */
struct ksmbd_login_response {
__u32 handle;
- __u32 gid;
- __u32 uid;
- __s8 account[KSMBD_REQ_MAX_ACCOUNT_NAME_SZ];
+ __u32 gid; /* group id */
+ __u32 uid; /* user id */
+ __s8 account[KSMBD_REQ_MAX_ACCOUNT_NAME_SZ]; /* user account name */
__u16 status;
- __u16 hash_sz;
- __s8 hash[KSMBD_REQ_MAX_HASH_SZ];
+ __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];
+ __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;
@@ -102,6 +174,10 @@ ksmbd_share_config_path(struct ksmbd_share_config_response *sc)
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;
@@ -113,21 +189,34 @@ struct ksmbd_tree_connect_request {
__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;
- __u64 connect_id;
+ __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];
+ __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;
@@ -135,18 +224,36 @@ struct ksmbd_rpc_command {
__u8 payload[];
};
+/*
+ * IPC Request Kerberos authentication
+ */
struct ksmbd_spnego_authen_request {
__u32 handle;
- __u16 spnego_blob_len;
- __u8 spnego_blob[0];
+ __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;
- __u16 session_key_len;
- __u16 spnego_blob_len;
- __u8 payload[]; /* session key + AP_REP */
+ 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 */
};
/*
@@ -185,6 +292,9 @@ enum ksmbd_event {
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,
@@ -262,6 +372,9 @@ enum KSMBD_TREE_CONN_STATUS {
#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
diff --git a/fs/ksmbd/ksmbd_work.c b/fs/ksmbd/ksmbd_work.c
index 7c914451bbe1..fd58eb4809f6 100644
--- a/fs/ksmbd/ksmbd_work.c
+++ b/fs/ksmbd/ksmbd_work.c
@@ -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;
diff --git a/fs/ksmbd/mgmt/tree_connect.h b/fs/ksmbd/mgmt/tree_connect.h
index 4e40ec3f4774..18e2a996e0aa 100644
--- a/fs/ksmbd/mgmt/tree_connect.h
+++ b/fs/ksmbd/mgmt/tree_connect.h
@@ -8,7 +8,7 @@
#include <linux/hashtable.h>
-#include "../ksmbd_server.h"
+#include "../ksmbd_netlink.h"
struct ksmbd_share_config;
struct ksmbd_user;
diff --git a/fs/ksmbd/smb2ops.c b/fs/ksmbd/smb2ops.c
index f7e5f21d4ae2..8262908e467c 100644
--- a/fs/ksmbd/smb2ops.c
+++ b/fs/ksmbd/smb2ops.c
@@ -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,
diff --git a/fs/ksmbd/smbacl.c b/fs/ksmbd/smbacl.c
index 958937a548a1..d385c7045cc0 100644
--- a/fs/ksmbd/smbacl.c
+++ b/fs/ksmbd/smbacl.c
@@ -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},
diff --git a/fs/ksmbd/vfs.h b/fs/ksmbd/vfs.h
index ba12fea004b5..e30174a0e5a1 100644
--- a/fs/ksmbd/vfs.h
+++ b/fs/ksmbd/vfs.h
@@ -14,92 +14,7 @@
#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
index 000000000000..8857c01093d9
--- /dev/null
+++ b/fs/ksmbd/xattr.h
@@ -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__ */
generated by cgit v1.2.3 (git 2.39.1) at 2024-12-22 14:07:34 +0100