修改内核路径

hc

2024-05-14 bedbef8ad3e75a304af6361af235302bcc61d06b

 kernel/fs/cifs/cifsproto.h
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@@ -22,6 +22,9 @@
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 #define _CIFSPROTO_H
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 #include <linux/nls.h>
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 #include "trace.h"
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+#ifdef CONFIG_CIFS_DFS_UPCALL
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+#include "dfs_cache.h"
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+#endif
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 struct statfs;
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 struct smb_vol;
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@@ -42,25 +45,25 @@
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 			unsigned int /* length */);
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 extern unsigned int _get_xid(void);
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 extern void _free_xid(unsigned int);
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-#define get_xid()						\
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-({								\
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+#define get_xid()							\
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+({									\
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 	unsigned int __xid = _get_xid();				\
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-	cifs_dbg(FYI, "CIFS VFS: in %s as Xid: %u with uid: %d\n",	\
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+	cifs_dbg(FYI, "VFS: in %s as Xid: %u with uid: %d\n",		\
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 		 __func__, __xid,					\
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 		 from_kuid(&init_user_ns, current_fsuid()));		\
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-	trace_smb3_enter(__xid, __func__);			\
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-	__xid;							\
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+	trace_smb3_enter(__xid, __func__);				\
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+	__xid;								\
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 })
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-#define free_xid(curr_xid)					\
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-do {								\
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-	_free_xid(curr_xid);					\
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-	cifs_dbg(FYI, "CIFS VFS: leaving %s (xid = %u) rc = %d\n",	\
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-		 __func__, curr_xid, (int)rc);			\
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-	if (rc)							\
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+#define free_xid(curr_xid)						\
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+do {									\
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+	_free_xid(curr_xid);						\
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+	cifs_dbg(FYI, "VFS: leaving %s (xid = %u) rc = %d\n",		\
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+		 __func__, curr_xid, (int)rc);				\
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+	if (rc)								\
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 		trace_smb3_exit_err(curr_xid, __func__, (int)rc);	\
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-	else							\
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-		trace_smb3_exit_done(curr_xid, __func__);	\
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+	else								\
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+		trace_smb3_exit_done(curr_xid, __func__);		\
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 } while (0)
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 extern int init_cifs_idmap(void);
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 extern void exit_cifs_idmap(void);
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@@ -86,15 +89,20 @@
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 extern void cifs_wake_up_task(struct mid_q_entry *mid);
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 extern int cifs_handle_standard(struct TCP_Server_Info *server,
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 				struct mid_q_entry *mid);
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+extern bool cifs_match_ipaddr(struct sockaddr *srcaddr, struct sockaddr *rhs);
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 extern int cifs_discard_remaining_data(struct TCP_Server_Info *server);
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 extern int cifs_call_async(struct TCP_Server_Info *server,
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 			struct smb_rqst *rqst,
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 			mid_receive_t *receive, mid_callback_t *callback,
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-			mid_handle_t *handle, void *cbdata, const int flags);
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+			mid_handle_t *handle, void *cbdata, const int flags,
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+			const struct cifs_credits *exist_credits);
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+extern struct TCP_Server_Info *cifs_pick_channel(struct cifs_ses *ses);
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 extern int cifs_send_recv(const unsigned int xid, struct cifs_ses *ses,
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+			  struct TCP_Server_Info *server,
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 			  struct smb_rqst *rqst, int *resp_buf_type,
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 			  const int flags, struct kvec *resp_iov);
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 extern int compound_send_recv(const unsigned int xid, struct cifs_ses *ses,
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+			      struct TCP_Server_Info *server,
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 			      const int flags, const int num_rqst,
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 			      struct smb_rqst *rqst, int *resp_buf_type,
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 			      struct kvec *resp_iov);
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@@ -105,6 +113,7 @@
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 extern int SendReceiveNoRsp(const unsigned int xid, struct cifs_ses *ses,
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 			    char *in_buf, int flags);
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 extern struct mid_q_entry *cifs_setup_request(struct cifs_ses *,
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+				struct TCP_Server_Info *,
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 				struct smb_rqst *);
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 extern struct mid_q_entry *cifs_setup_async_request(struct TCP_Server_Info *,
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 						struct smb_rqst *);
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@@ -112,7 +121,7 @@
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 			struct TCP_Server_Info *server, bool log_error);
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 extern int cifs_wait_mtu_credits(struct TCP_Server_Info *server,
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 				 unsigned int size, unsigned int *num,
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-				 unsigned int *credits);
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+				 struct cifs_credits *credits);
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 extern int SendReceive2(const unsigned int /* xid */ , struct cifs_ses *,
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 			struct kvec *, int /* nvec to send */,
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 			int * /* type of buf returned */, const int flags,
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@@ -129,14 +138,23 @@
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 extern bool is_size_safe_to_change(struct cifsInodeInfo *, __u64 eof);
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 extern void cifs_update_eof(struct cifsInodeInfo *cifsi, loff_t offset,
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 			    unsigned int bytes_written);
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-extern struct cifsFileInfo *find_writable_file(struct cifsInodeInfo *, bool);
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+extern struct cifsFileInfo *find_writable_file(struct cifsInodeInfo *, int);
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+extern int cifs_get_writable_file(struct cifsInodeInfo *cifs_inode,
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+				  int flags,
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+				  struct cifsFileInfo **ret_file);
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+extern int cifs_get_writable_path(struct cifs_tcon *tcon, const char *name,
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+				  int flags,
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+				  struct cifsFileInfo **ret_file);
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 extern struct cifsFileInfo *find_readable_file(struct cifsInodeInfo *, bool);
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+extern int cifs_get_readable_path(struct cifs_tcon *tcon, const char *name,
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+				  struct cifsFileInfo **ret_file);
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 extern unsigned int smbCalcSize(void *buf, struct TCP_Server_Info *server);
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 extern int decode_negTokenInit(unsigned char *security_blob, int length,
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 			struct TCP_Server_Info *server);
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 extern int cifs_convert_address(struct sockaddr *dst, const char *src, int len);
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 extern void cifs_set_port(struct sockaddr *addr, const unsigned short int port);
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 extern int map_smb_to_linux_error(char *buf, bool logErr);
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+extern int map_and_check_smb_error(struct mid_q_entry *mid, bool logErr);
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 extern void header_assemble(struct smb_hdr *, char /* command */ ,
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 			    const struct cifs_tcon *, int /* length of
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 			    fixed section (word count) in two byte units */);
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@@ -181,6 +199,8 @@
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 extern int cifs_get_inode_info(struct inode **inode, const char *full_path,
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 			       FILE_ALL_INFO *data, struct super_block *sb,
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 			       int xid, const struct cifs_fid *fid);
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+extern int smb311_posix_get_inode_info(struct inode **pinode, const char *search_path,
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+			struct super_block *sb, unsigned int xid);
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 extern int cifs_get_inode_info_unix(struct inode **pinode,
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 			const unsigned char *search_path,
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 			struct super_block *sb, unsigned int xid);
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@@ -189,8 +209,11 @@
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 extern int cifs_rename_pending_delete(const char *full_path,
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 				      struct dentry *dentry,
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 				      const unsigned int xid);
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+extern int sid_to_id(struct cifs_sb_info *cifs_sb, struct cifs_sid *psid,
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+				struct cifs_fattr *fattr, uint sidtype);
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 extern int cifs_acl_to_fattr(struct cifs_sb_info *cifs_sb,
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 			      struct cifs_fattr *fattr, struct inode *inode,
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+			      bool get_mode_from_special_sid,
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 			      const char *path, const struct cifs_fid *pfid);
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 extern int id_mode_to_cifs_acl(struct inode *inode, const char *path, __u64,
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 					kuid_t, kgid_t);
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@@ -200,10 +223,15 @@
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 						const struct cifs_fid *, u32 *);
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 extern int set_cifs_acl(struct cifs_ntsd *, __u32, struct inode *,
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 				const char *, int);
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+extern unsigned int setup_authusers_ACE(struct cifs_ace *pace);
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+extern unsigned int setup_special_mode_ACE(struct cifs_ace *pace, __u64 nmode);
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+extern unsigned int setup_special_user_owner_ACE(struct cifs_ace *pace);
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 extern void dequeue_mid(struct mid_q_entry *mid, bool malformed);
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 extern int cifs_read_from_socket(struct TCP_Server_Info *server, char *buf,
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 			         unsigned int to_read);
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+extern ssize_t cifs_discard_from_socket(struct TCP_Server_Info *server,
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+					size_t to_read);
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 extern int cifs_read_page_from_socket(struct TCP_Server_Info *server,
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 					struct page *page,
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 					unsigned int page_offset,
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@@ -214,13 +242,13 @@
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 extern void cifs_cleanup_volume_info(struct smb_vol *pvolume_info);
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 extern struct smb_vol *cifs_get_volume_info(char *mount_data,
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 					    const char *devname, bool is_smb3);
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-extern int cifs_mount(struct cifs_sb_info *, struct smb_vol *);
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+extern int cifs_mount(struct cifs_sb_info *cifs_sb, struct smb_vol *vol);
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 extern void cifs_umount(struct cifs_sb_info *);
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 extern void cifs_mark_open_files_invalid(struct cifs_tcon *tcon);
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 extern void cifs_reopen_persistent_handles(struct cifs_tcon *tcon);
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 extern bool cifs_find_lock_conflict(struct cifsFileInfo *cfile, __u64 offset,
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-				    __u64 length, __u8 type,
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+				    __u64 length, __u8 type, __u16 flags,
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 				    struct cifsLockInfo **conf_lock,
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 				    int rw_check);
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 extern void cifs_add_pending_open(struct cifs_fid *fid,
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@@ -230,6 +258,7 @@
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 					 struct tcon_link *tlink,
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 					 struct cifs_pending_open *open);
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 extern void cifs_del_pending_open(struct cifs_pending_open *open);
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+extern struct TCP_Server_Info *cifs_get_tcp_session(struct smb_vol *vol);
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 extern void cifs_put_tcp_session(struct TCP_Server_Info *server,
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 				 int from_reconnect);
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 extern void cifs_put_tcon(struct cifs_tcon *tcon);
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@@ -246,6 +275,9 @@
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 extern void cifs_move_llist(struct list_head *source, struct list_head *dest);
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 extern void cifs_free_llist(struct list_head *llist);
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 extern void cifs_del_lock_waiters(struct cifsLockInfo *lock);
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+
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+extern int cifs_tree_connect(const unsigned int xid, struct cifs_tcon *tcon,
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+			     const struct nls_table *nlsc);
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 extern int cifs_negotiate_protocol(const unsigned int xid,
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 				   struct cifs_ses *ses);
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@@ -295,11 +327,6 @@
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 			   unsigned int *num_of_nodes,
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 			   const struct nls_table *nls_codepage, int remap);
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-extern int get_dfs_path(const unsigned int xid, struct cifs_ses *ses,
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-			const char *old_path,
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-			const struct nls_table *nls_codepage,
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-			unsigned int *num_referrals,
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-			struct dfs_info3_param **referrals, int remap);
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 extern int parse_dfs_referrals(struct get_dfs_referral_rsp *rsp, u32 rsp_size,
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 			       unsigned int *num_of_nodes,
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 			       struct dfs_info3_param **target_nodes,
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@@ -325,7 +352,7 @@
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 extern int CIFSSMBSetPathInfo(const unsigned int xid, struct cifs_tcon *tcon,
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 			const char *fileName, const FILE_BASIC_INFO *data,
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 			const struct nls_table *nls_codepage,
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-			int remap_special_chars);
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+			struct cifs_sb_info *cifs_sb);
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 extern int CIFSSMBSetFileInfo(const unsigned int xid, struct cifs_tcon *tcon,
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 			const FILE_BASIC_INFO *data, __u16 fid,
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 			__u32 pid_of_opener);
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@@ -366,7 +393,8 @@
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 				  const struct nls_table *nls_codepage,
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 				  int remap);
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-extern int CIFSSMBMkDir(const unsigned int xid, struct cifs_tcon *tcon,
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+extern int CIFSSMBMkDir(const unsigned int xid, struct inode *inode,
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+			umode_t mode, struct cifs_tcon *tcon,
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 			const char *name, struct cifs_sb_info *cifs_sb);
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 extern int CIFSSMBRmDir(const unsigned int xid, struct cifs_tcon *tcon,
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 			const char *name, struct cifs_sb_info *cifs_sb);
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@@ -526,6 +554,20 @@
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 extern int SMBencrypt(unsigned char *passwd, const unsigned char *c8,
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 			unsigned char *p24);
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+extern int
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+cifs_setup_volume_info(struct smb_vol *volume_info, char *mount_data,
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+		       const char *devname, bool is_smb3);
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+extern void
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+cifs_cleanup_volume_info_contents(struct smb_vol *volume_info);
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+
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+extern struct TCP_Server_Info *
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+cifs_find_tcp_session(struct smb_vol *vol);
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+
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+extern void cifs_put_smb_ses(struct cifs_ses *ses);
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+
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+extern struct cifs_ses *
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+cifs_get_smb_ses(struct TCP_Server_Info *server, struct smb_vol *volume_info);
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+
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 void cifs_readdata_release(struct kref *refcount);
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 int cifs_async_readv(struct cifs_readdata *rdata);
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 int cifs_readv_receive(struct TCP_Server_Info *server, struct mid_q_entry *mid);
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@@ -560,7 +602,48 @@
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 		    struct sdesc **sdesc);
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 void cifs_free_hash(struct crypto_shash **shash, struct sdesc **sdesc);
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-extern void rqst_page_get_length(struct smb_rqst *rqst, unsigned int page,
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-				unsigned int *len, unsigned int *offset);
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+void rqst_page_get_length(const struct smb_rqst *rqst, unsigned int page,
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+			  unsigned int *len, unsigned int *offset);
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+struct cifs_chan *
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+cifs_ses_find_chan(struct cifs_ses *ses, struct TCP_Server_Info *server);
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+int cifs_try_adding_channels(struct cifs_ses *ses);
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+int cifs_ses_add_channel(struct cifs_ses *ses,
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+				struct cifs_server_iface *iface);
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+bool is_server_using_iface(struct TCP_Server_Info *server,
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+			   struct cifs_server_iface *iface);
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+bool is_ses_using_iface(struct cifs_ses *ses, struct cifs_server_iface *iface);
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+
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+void extract_unc_hostname(const char *unc, const char **h, size_t *len);
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+int copy_path_name(char *dst, const char *src);
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+int smb2_parse_query_directory(struct cifs_tcon *tcon, struct kvec *rsp_iov,
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+			       int resp_buftype,
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+			       struct cifs_search_info *srch_inf);
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+
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+struct super_block *cifs_get_tcp_super(struct TCP_Server_Info *server);
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+void cifs_put_tcp_super(struct super_block *sb);
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+int update_super_prepath(struct cifs_tcon *tcon, char *prefix);
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+
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+#ifdef CONFIG_CIFS_DFS_UPCALL
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+static inline int get_dfs_path(const unsigned int xid, struct cifs_ses *ses,
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+			       const char *old_path,
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+			       const struct nls_table *nls_codepage,
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+			       struct dfs_info3_param *referral, int remap)
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+{
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+	return dfs_cache_find(xid, ses, nls_codepage, remap, old_path,
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+			      referral, NULL);
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+}
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+
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+int match_target_ip(struct TCP_Server_Info *server,
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+		    const char *share, size_t share_len,
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+		    bool *result);
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+#endif
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+
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+static inline int cifs_create_options(struct cifs_sb_info *cifs_sb, int options)
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+{
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+	if (cifs_sb && (backup_cred(cifs_sb)))
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+		return options | CREATE_OPEN_BACKUP_INTENT;
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+	else
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+		return options;
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+}
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 #endif			/* _CIFSPROTO_H */