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authorLinus Torvalds <torvalds@ppc970.osdl.org>2005-04-16 15:20:36 -0700
committerLinus Torvalds <torvalds@ppc970.osdl.org>2005-04-16 15:20:36 -0700
commit1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 (patch)
tree0bba044c4ce775e45a88a51686b5d9f90697ea9d /fs/ncpfs/ncplib_kernel.h
downloadop-kernel-dev-1da177e4c3f41524e886b7f1b8a0c1fc7321cac2.zip
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Linux-2.6.12-rc2v2.6.12-rc2
Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
Diffstat (limited to 'fs/ncpfs/ncplib_kernel.h')
-rw-r--r--fs/ncpfs/ncplib_kernel.h259
1 files changed, 259 insertions, 0 deletions
diff --git a/fs/ncpfs/ncplib_kernel.h b/fs/ncpfs/ncplib_kernel.h
new file mode 100644
index 0000000..05ec2e9
--- /dev/null
+++ b/fs/ncpfs/ncplib_kernel.h
@@ -0,0 +1,259 @@
+/*
+ * ncplib_kernel.h
+ *
+ * Copyright (C) 1995, 1996 by Volker Lendecke
+ * Modified for big endian by J.F. Chadima and David S. Miller
+ * Modified 1997 Peter Waltenberg, Bill Hawes, David Woodhouse for 2.1 dcache
+ * Modified 1998, 1999 Wolfram Pienkoss for NLS
+ * Modified 1999 Wolfram Pienkoss for directory caching
+ *
+ */
+
+#ifndef _NCPLIB_H
+#define _NCPLIB_H
+
+#include <linux/config.h>
+
+#include <linux/fs.h>
+#include <linux/types.h>
+#include <linux/errno.h>
+#include <linux/slab.h>
+#include <linux/stat.h>
+#include <linux/fcntl.h>
+#include <linux/pagemap.h>
+
+#include <asm/uaccess.h>
+#include <asm/byteorder.h>
+#include <asm/unaligned.h>
+#include <asm/string.h>
+
+#ifdef CONFIG_NCPFS_NLS
+#include <linux/nls.h>
+#else
+#include <linux/ctype.h>
+#endif /* CONFIG_NCPFS_NLS */
+
+#include <linux/ncp_fs.h>
+
+#define NCP_MIN_SYMLINK_SIZE 8
+#define NCP_MAX_SYMLINK_SIZE 512
+
+#define NCP_BLOCK_SHIFT 9
+#define NCP_BLOCK_SIZE (1 << (NCP_BLOCK_SHIFT))
+
+int ncp_negotiate_buffersize(struct ncp_server *, int, int *);
+int ncp_negotiate_size_and_options(struct ncp_server *server, int size,
+ int options, int *ret_size, int *ret_options);
+
+int ncp_get_volume_info_with_number(struct ncp_server* server, int n,
+ struct ncp_volume_info *target);
+
+int ncp_get_directory_info(struct ncp_server* server, __u8 dirhandle,
+ struct ncp_volume_info* target);
+
+int ncp_close_file(struct ncp_server *, const char *);
+static inline int ncp_read_bounce_size(__u32 size) {
+ return sizeof(struct ncp_reply_header) + 2 + 2 + size + 8;
+};
+int ncp_read_bounce(struct ncp_server *, const char *, __u32, __u16,
+ char __user *, int *, void* bounce, __u32 bouncelen);
+int ncp_read_kernel(struct ncp_server *, const char *, __u32, __u16,
+ char *, int *);
+int ncp_write_kernel(struct ncp_server *, const char *, __u32, __u16,
+ const char *, int *);
+
+static inline void ncp_inode_close(struct inode *inode) {
+ atomic_dec(&NCP_FINFO(inode)->opened);
+}
+
+void ncp_extract_file_info(void* src, struct nw_info_struct* target);
+int ncp_obtain_info(struct ncp_server *server, struct inode *, char *,
+ struct nw_info_struct *target);
+int ncp_obtain_nfs_info(struct ncp_server *server, struct nw_info_struct *target);
+int ncp_get_volume_root(struct ncp_server *server, const char *volname,
+ __u32 *volume, __le32 *dirent, __le32 *dosdirent);
+int ncp_lookup_volume(struct ncp_server *, const char *, struct nw_info_struct *);
+int ncp_modify_file_or_subdir_dos_info(struct ncp_server *, struct inode *,
+ __le32, const struct nw_modify_dos_info *info);
+int ncp_modify_file_or_subdir_dos_info_path(struct ncp_server *, struct inode *,
+ const char* path, __le32, const struct nw_modify_dos_info *info);
+int ncp_modify_nfs_info(struct ncp_server *, __u8 volnum, __le32 dirent,
+ __u32 mode, __u32 rdev);
+
+int ncp_del_file_or_subdir2(struct ncp_server *, struct dentry*);
+int ncp_del_file_or_subdir(struct ncp_server *, struct inode *, char *);
+int ncp_open_create_file_or_subdir(struct ncp_server *, struct inode *, char *,
+ int, __le32, __le16, struct ncp_entry_info *);
+
+int ncp_initialize_search(struct ncp_server *, struct inode *,
+ struct nw_search_sequence *target);
+int ncp_search_for_file_or_subdir(struct ncp_server *server,
+ struct nw_search_sequence *seq,
+ struct nw_info_struct *target);
+int ncp_search_for_fileset(struct ncp_server *server,
+ struct nw_search_sequence *seq,
+ int* more, int* cnt,
+ char* buffer, size_t bufsize,
+ char** rbuf, size_t* rsize);
+
+int ncp_ren_or_mov_file_or_subdir(struct ncp_server *server,
+ struct inode *, char *, struct inode *, char *);
+
+
+int
+ncp_LogPhysicalRecord(struct ncp_server *server,
+ const char *file_id, __u8 locktype,
+ __u32 offset, __u32 length, __u16 timeout);
+
+#ifdef CONFIG_NCPFS_IOCTL_LOCKING
+int
+ncp_ClearPhysicalRecord(struct ncp_server *server,
+ const char *file_id,
+ __u32 offset, __u32 length);
+#endif /* CONFIG_NCPFS_IOCTL_LOCKING */
+
+int
+ncp_mount_subdir(struct ncp_server *, __u8, __u8, __le32,
+ __u32* volume, __le32* dirent, __le32* dosdirent);
+int ncp_dirhandle_alloc(struct ncp_server *, __u8 vol, __le32 dirent, __u8 *dirhandle);
+int ncp_dirhandle_free(struct ncp_server *, __u8 dirhandle);
+
+int ncp_create_new(struct inode *dir, struct dentry *dentry,
+ int mode, dev_t rdev, __le32 attributes);
+
+static inline int ncp_is_nfs_extras(struct ncp_server* server, unsigned int volnum) {
+#ifdef CONFIG_NCPFS_NFS_NS
+ return (server->m.flags & NCP_MOUNT_NFS_EXTRAS) &&
+ (server->name_space[volnum] == NW_NS_NFS);
+#else
+ return 0;
+#endif
+}
+
+#ifdef CONFIG_NCPFS_NLS
+
+int ncp__io2vol(struct ncp_server *, unsigned char *, unsigned int *,
+ const unsigned char *, unsigned int, int);
+int ncp__vol2io(struct ncp_server *, unsigned char *, unsigned int *,
+ const unsigned char *, unsigned int, int);
+
+#define NCP_ESC ':'
+#define NCP_IO_TABLE(dentry) (NCP_SERVER((dentry)->d_inode)->nls_io)
+#define ncp_tolower(t, c) nls_tolower(t, c)
+#define ncp_toupper(t, c) nls_toupper(t, c)
+#define ncp_strnicmp(t, s1, s2, len) \
+ nls_strnicmp(t, s1, s2, len)
+#define ncp_io2vol(S,m,i,n,k,U) ncp__io2vol(S,m,i,n,k,U)
+#define ncp_vol2io(S,m,i,n,k,U) ncp__vol2io(S,m,i,n,k,U)
+
+#else
+
+int ncp__io2vol(unsigned char *, unsigned int *,
+ const unsigned char *, unsigned int, int);
+int ncp__vol2io(unsigned char *, unsigned int *,
+ const unsigned char *, unsigned int, int);
+
+#define NCP_IO_TABLE(dentry) NULL
+#define ncp_tolower(t, c) tolower(c)
+#define ncp_toupper(t, c) toupper(c)
+#define ncp_io2vol(S,m,i,n,k,U) ncp__io2vol(m,i,n,k,U)
+#define ncp_vol2io(S,m,i,n,k,U) ncp__vol2io(m,i,n,k,U)
+
+
+static inline int ncp_strnicmp(struct nls_table *t, const unsigned char *s1,
+ const unsigned char *s2, int len)
+{
+ while (len--) {
+ if (tolower(*s1++) != tolower(*s2++))
+ return 1;
+ }
+
+ return 0;
+}
+
+#endif /* CONFIG_NCPFS_NLS */
+
+#define NCP_GET_AGE(dentry) (jiffies - (dentry)->d_time)
+#define NCP_MAX_AGE(server) ((server)->dentry_ttl)
+#define NCP_TEST_AGE(server,dentry) (NCP_GET_AGE(dentry) < NCP_MAX_AGE(server))
+
+static inline void
+ncp_age_dentry(struct ncp_server* server, struct dentry* dentry)
+{
+ dentry->d_time = jiffies - server->dentry_ttl;
+}
+
+static inline void
+ncp_new_dentry(struct dentry* dentry)
+{
+ dentry->d_time = jiffies;
+}
+
+static inline void
+ncp_renew_dentries(struct dentry *parent)
+{
+ struct ncp_server *server = NCP_SERVER(parent->d_inode);
+ struct list_head *next;
+ struct dentry *dentry;
+
+ spin_lock(&dcache_lock);
+ next = parent->d_subdirs.next;
+ while (next != &parent->d_subdirs) {
+ dentry = list_entry(next, struct dentry, d_child);
+
+ if (dentry->d_fsdata == NULL)
+ ncp_age_dentry(server, dentry);
+ else
+ ncp_new_dentry(dentry);
+
+ next = next->next;
+ }
+ spin_unlock(&dcache_lock);
+}
+
+static inline void
+ncp_invalidate_dircache_entries(struct dentry *parent)
+{
+ struct ncp_server *server = NCP_SERVER(parent->d_inode);
+ struct list_head *next;
+ struct dentry *dentry;
+
+ spin_lock(&dcache_lock);
+ next = parent->d_subdirs.next;
+ while (next != &parent->d_subdirs) {
+ dentry = list_entry(next, struct dentry, d_child);
+ dentry->d_fsdata = NULL;
+ ncp_age_dentry(server, dentry);
+ next = next->next;
+ }
+ spin_unlock(&dcache_lock);
+}
+
+struct ncp_cache_head {
+ time_t mtime;
+ unsigned long time; /* cache age */
+ unsigned long end; /* last valid fpos in cache */
+ int eof;
+};
+
+#define NCP_DIRCACHE_SIZE ((int)(PAGE_CACHE_SIZE/sizeof(struct dentry *)))
+union ncp_dir_cache {
+ struct ncp_cache_head head;
+ struct dentry *dentry[NCP_DIRCACHE_SIZE];
+};
+
+#define NCP_FIRSTCACHE_SIZE ((int)((NCP_DIRCACHE_SIZE * \
+ sizeof(struct dentry *) - sizeof(struct ncp_cache_head)) / \
+ sizeof(struct dentry *)))
+
+#define NCP_DIRCACHE_START (NCP_DIRCACHE_SIZE - NCP_FIRSTCACHE_SIZE)
+
+struct ncp_cache_control {
+ struct ncp_cache_head head;
+ struct page *page;
+ union ncp_dir_cache *cache;
+ unsigned long fpos, ofs;
+ int filled, valid, idx;
+};
+
+#endif /* _NCPLIB_H */
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