c5ef1c42c5
Many struct inode_operations in the kernel can be "const". Marking them const moves these to the .rodata section, which avoids false sharing with potential dirty data. In addition it'll catch accidental writes at compile time to these shared resources. Signed-off-by: Arjan van de Ven <arjan@linux.intel.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
270 lines
6.7 KiB
C
270 lines
6.7 KiB
C
/*
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* ncp_fs.h
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*
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* Copyright (C) 1995, 1996 by Volker Lendecke
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*
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*/
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#ifndef _LINUX_NCP_FS_H
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#define _LINUX_NCP_FS_H
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#include <linux/fs.h>
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#include <linux/in.h>
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#include <linux/types.h>
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#include <linux/magic.h>
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#include <linux/ipx.h>
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#include <linux/ncp_no.h>
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/*
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* ioctl commands
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*/
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struct ncp_ioctl_request {
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unsigned int function;
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unsigned int size;
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char __user *data;
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};
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struct ncp_fs_info {
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int version;
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struct sockaddr_ipx addr;
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__kernel_uid_t mounted_uid;
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int connection; /* Connection number the server assigned us */
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int buffer_size; /* The negotiated buffer size, to be
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used for read/write requests! */
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int volume_number;
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__le32 directory_id;
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};
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struct ncp_fs_info_v2 {
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int version;
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unsigned long mounted_uid;
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unsigned int connection;
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unsigned int buffer_size;
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unsigned int volume_number;
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__le32 directory_id;
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__u32 dummy1;
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__u32 dummy2;
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__u32 dummy3;
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};
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struct ncp_sign_init
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{
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char sign_root[8];
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char sign_last[16];
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};
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struct ncp_lock_ioctl
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{
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#define NCP_LOCK_LOG 0
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#define NCP_LOCK_SH 1
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#define NCP_LOCK_EX 2
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#define NCP_LOCK_CLEAR 256
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int cmd;
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int origin;
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unsigned int offset;
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unsigned int length;
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#define NCP_LOCK_DEFAULT_TIMEOUT 18
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#define NCP_LOCK_MAX_TIMEOUT 180
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int timeout;
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};
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struct ncp_setroot_ioctl
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{
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int volNumber;
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int namespace;
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__le32 dirEntNum;
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};
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struct ncp_objectname_ioctl
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{
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#define NCP_AUTH_NONE 0x00
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#define NCP_AUTH_BIND 0x31
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#define NCP_AUTH_NDS 0x32
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int auth_type;
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size_t object_name_len;
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void __user * object_name; /* an userspace data, in most cases user name */
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};
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struct ncp_privatedata_ioctl
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{
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size_t len;
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void __user * data; /* ~1000 for NDS */
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};
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/* NLS charsets by ioctl */
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#define NCP_IOCSNAME_LEN 20
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struct ncp_nls_ioctl
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{
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unsigned char codepage[NCP_IOCSNAME_LEN+1];
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unsigned char iocharset[NCP_IOCSNAME_LEN+1];
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};
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#define NCP_IOC_NCPREQUEST _IOR('n', 1, struct ncp_ioctl_request)
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#define NCP_IOC_GETMOUNTUID _IOW('n', 2, __kernel_old_uid_t)
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#define NCP_IOC_GETMOUNTUID2 _IOW('n', 2, unsigned long)
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#define NCP_IOC_CONN_LOGGED_IN _IO('n', 3)
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#define NCP_GET_FS_INFO_VERSION (1)
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#define NCP_IOC_GET_FS_INFO _IOWR('n', 4, struct ncp_fs_info)
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#define NCP_GET_FS_INFO_VERSION_V2 (2)
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#define NCP_IOC_GET_FS_INFO_V2 _IOWR('n', 4, struct ncp_fs_info_v2)
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#define NCP_IOC_SIGN_INIT _IOR('n', 5, struct ncp_sign_init)
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#define NCP_IOC_SIGN_WANTED _IOR('n', 6, int)
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#define NCP_IOC_SET_SIGN_WANTED _IOW('n', 6, int)
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#define NCP_IOC_LOCKUNLOCK _IOR('n', 7, struct ncp_lock_ioctl)
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#define NCP_IOC_GETROOT _IOW('n', 8, struct ncp_setroot_ioctl)
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#define NCP_IOC_SETROOT _IOR('n', 8, struct ncp_setroot_ioctl)
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#define NCP_IOC_GETOBJECTNAME _IOWR('n', 9, struct ncp_objectname_ioctl)
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#define NCP_IOC_SETOBJECTNAME _IOR('n', 9, struct ncp_objectname_ioctl)
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#define NCP_IOC_GETPRIVATEDATA _IOWR('n', 10, struct ncp_privatedata_ioctl)
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#define NCP_IOC_SETPRIVATEDATA _IOR('n', 10, struct ncp_privatedata_ioctl)
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#define NCP_IOC_GETCHARSETS _IOWR('n', 11, struct ncp_nls_ioctl)
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#define NCP_IOC_SETCHARSETS _IOR('n', 11, struct ncp_nls_ioctl)
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#define NCP_IOC_GETDENTRYTTL _IOW('n', 12, __u32)
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#define NCP_IOC_SETDENTRYTTL _IOR('n', 12, __u32)
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/*
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* The packet size to allocate. One page should be enough.
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*/
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#define NCP_PACKET_SIZE 4070
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#define NCP_MAXPATHLEN 255
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#define NCP_MAXNAMELEN 14
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#ifdef __KERNEL__
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#include <linux/ncp_fs_i.h>
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#include <linux/ncp_fs_sb.h>
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/* undef because public define in umsdos_fs.h (ncp_fs.h isn't public) */
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#undef PRINTK
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/* define because it is easy to change PRINTK to {*}PRINTK */
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#define PRINTK(format, args...) printk(KERN_DEBUG format , ## args)
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#undef NCPFS_PARANOIA
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#ifdef NCPFS_PARANOIA
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#define PPRINTK(format, args...) PRINTK(format , ## args)
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#else
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#define PPRINTK(format, args...)
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#endif
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#ifndef DEBUG_NCP
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#define DEBUG_NCP 0
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#endif
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#if DEBUG_NCP > 0
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#define DPRINTK(format, args...) PRINTK(format , ## args)
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#else
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#define DPRINTK(format, args...)
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#endif
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#if DEBUG_NCP > 1
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#define DDPRINTK(format, args...) PRINTK(format , ## args)
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#else
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#define DDPRINTK(format, args...)
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#endif
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#define NCP_MAX_RPC_TIMEOUT (6*HZ)
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struct ncp_entry_info {
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struct nw_info_struct i;
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ino_t ino;
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int opened;
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int access;
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unsigned int volume;
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__u8 file_handle[6];
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};
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static inline struct ncp_server *NCP_SBP(struct super_block *sb)
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{
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return sb->s_fs_info;
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}
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#define NCP_SERVER(inode) NCP_SBP((inode)->i_sb)
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static inline struct ncp_inode_info *NCP_FINFO(struct inode *inode)
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{
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return container_of(inode, struct ncp_inode_info, vfs_inode);
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}
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/* linux/fs/ncpfs/inode.c */
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int ncp_notify_change(struct dentry *, struct iattr *);
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struct inode *ncp_iget(struct super_block *, struct ncp_entry_info *);
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void ncp_update_inode(struct inode *, struct ncp_entry_info *);
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void ncp_update_inode2(struct inode *, struct ncp_entry_info *);
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/* linux/fs/ncpfs/dir.c */
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extern const struct inode_operations ncp_dir_inode_operations;
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extern const struct file_operations ncp_dir_operations;
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int ncp_conn_logged_in(struct super_block *);
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int ncp_date_dos2unix(__le16 time, __le16 date);
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void ncp_date_unix2dos(int unix_date, __le16 * time, __le16 * date);
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/* linux/fs/ncpfs/ioctl.c */
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int ncp_ioctl(struct inode *, struct file *, unsigned int, unsigned long);
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long ncp_compat_ioctl(struct file *, unsigned int, unsigned long);
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/* linux/fs/ncpfs/sock.c */
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int ncp_request2(struct ncp_server *server, int function,
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void* reply, int max_reply_size);
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static inline int ncp_request(struct ncp_server *server, int function) {
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return ncp_request2(server, function, server->packet, server->packet_size);
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}
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int ncp_connect(struct ncp_server *server);
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int ncp_disconnect(struct ncp_server *server);
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void ncp_lock_server(struct ncp_server *server);
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void ncp_unlock_server(struct ncp_server *server);
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/* linux/fs/ncpfs/file.c */
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extern const struct inode_operations ncp_file_inode_operations;
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extern const struct file_operations ncp_file_operations;
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int ncp_make_open(struct inode *, int);
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/* linux/fs/ncpfs/mmap.c */
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int ncp_mmap(struct file *, struct vm_area_struct *);
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/* linux/fs/ncpfs/ncplib_kernel.c */
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int ncp_make_closed(struct inode *);
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#define ncp_namespace(i) (NCP_SERVER(i)->name_space[NCP_FINFO(i)->volNumber])
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static inline int ncp_preserve_entry_case(struct inode *i, __u32 nscreator)
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{
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#ifdef CONFIG_NCPFS_SMALLDOS
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int ns = ncp_namespace(i);
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if ((ns == NW_NS_DOS)
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#ifdef CONFIG_NCPFS_OS2_NS
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|| ((ns == NW_NS_OS2) && (nscreator == NW_NS_DOS))
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#endif /* CONFIG_NCPFS_OS2_NS */
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)
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return 0;
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#endif /* CONFIG_NCPFS_SMALLDOS */
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return 1;
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}
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#define ncp_preserve_case(i) (ncp_namespace(i) != NW_NS_DOS)
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static inline int ncp_case_sensitive(struct inode *i)
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{
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#ifdef CONFIG_NCPFS_NFS_NS
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return ncp_namespace(i) == NW_NS_NFS;
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#else
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return 0;
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#endif /* CONFIG_NCPFS_NFS_NS */
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}
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#endif /* __KERNEL__ */
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#endif /* _LINUX_NCP_FS_H */
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