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Diffstat (limited to 'fs/ncpfs/ncplib_kernel.c')
-rw-r--r--fs/ncpfs/ncplib_kernel.c101
1 files changed, 56 insertions, 45 deletions
diff --git a/fs/ncpfs/ncplib_kernel.c b/fs/ncpfs/ncplib_kernel.c
index 0ec6237a5970..a95615a0b6ac 100644
--- a/fs/ncpfs/ncplib_kernel.c
+++ b/fs/ncpfs/ncplib_kernel.c
@@ -107,17 +107,17 @@ ncp_reply_data(struct ncp_server *server, int offset)
return &(server->packet[sizeof(struct ncp_reply_header) + offset]);
}
-static inline u8 BVAL(void *data)
+static inline u8 BVAL(const void *data)
{
- return *(u8 *)data;
+ return *(const u8 *)data;
}
static u8 ncp_reply_byte(struct ncp_server *server, int offset)
{
- return *(u8 *)ncp_reply_data(server, offset);
+ return *(const u8 *)ncp_reply_data(server, offset);
}
-static inline u16 WVAL_LH(void *data)
+static inline u16 WVAL_LH(const void *data)
{
return get_unaligned_le16(data);
}
@@ -134,7 +134,7 @@ ncp_reply_be16(struct ncp_server *server, int offset)
return get_unaligned_be16(ncp_reply_data(server, offset));
}
-static inline u32 DVAL_LH(void *data)
+static inline u32 DVAL_LH(const void *data)
{
return get_unaligned_le32(data);
}
@@ -349,9 +349,9 @@ int ncp_dirhandle_free(struct ncp_server* server, __u8 dirhandle) {
return result;
}
-void ncp_extract_file_info(void *structure, struct nw_info_struct *target)
+void ncp_extract_file_info(const void *structure, struct nw_info_struct *target)
{
- __u8 *name_len;
+ const __u8 *name_len;
const int info_struct_size = offsetof(struct nw_info_struct, nameLen);
memcpy(target, structure, info_struct_size);
@@ -364,7 +364,7 @@ void ncp_extract_file_info(void *structure, struct nw_info_struct *target)
}
#ifdef CONFIG_NCPFS_NFS_NS
-static inline void ncp_extract_nfs_info(unsigned char *structure,
+static inline void ncp_extract_nfs_info(const unsigned char *structure,
struct nw_nfs_info *target)
{
target->mode = DVAL_LH(structure);
@@ -417,7 +417,7 @@ int ncp_obtain_nfs_info(struct ncp_server *server,
* Returns information for a (one-component) name relative to
* the specified directory.
*/
-int ncp_obtain_info(struct ncp_server *server, struct inode *dir, char *path,
+int ncp_obtain_info(struct ncp_server *server, struct inode *dir, const char *path,
struct nw_info_struct *target)
{
__u8 volnum = NCP_FINFO(dir)->volNumber;
@@ -452,16 +452,16 @@ out:
#ifdef CONFIG_NCPFS_NFS_NS
static int
ncp_obtain_DOS_dir_base(struct ncp_server *server,
- __u8 volnum, __le32 dirent,
- char *path, /* At most 1 component */
+ __u8 ns, __u8 volnum, __le32 dirent,
+ const char *path, /* At most 1 component */
__le32 *DOS_dir_base)
{
int result;
ncp_init_request(server);
ncp_add_byte(server, 6); /* subfunction */
- ncp_add_byte(server, server->name_space[volnum]);
- ncp_add_byte(server, server->name_space[volnum]);
+ ncp_add_byte(server, ns);
+ ncp_add_byte(server, ns);
ncp_add_word(server, cpu_to_le16(0x8006)); /* get all */
ncp_add_dword(server, RIM_DIRECTORY);
ncp_add_handle_path(server, volnum, dirent, 1, path);
@@ -523,10 +523,27 @@ ncp_get_known_namespace(struct ncp_server *server, __u8 volume)
#endif /* defined(CONFIG_NCPFS_OS2_NS) || defined(CONFIG_NCPFS_NFS_NS) */
}
+int
+ncp_update_known_namespace(struct ncp_server *server, __u8 volume, int *ret_ns)
+{
+ int ns = ncp_get_known_namespace(server, volume);
+
+ if (ret_ns)
+ *ret_ns = ns;
+
+ DPRINTK("lookup_vol: namespace[%d] = %d\n",
+ volume, server->name_space[volume]);
+
+ if (server->name_space[volume] == ns)
+ return 0;
+ server->name_space[volume] = ns;
+ return 1;
+}
+
static int
ncp_ObtainSpecificDirBase(struct ncp_server *server,
__u8 nsSrc, __u8 nsDst, __u8 vol_num, __le32 dir_base,
- char *path, /* At most 1 component */
+ const char *path, /* At most 1 component */
__le32 *dirEntNum, __le32 *DosDirNum)
{
int result;
@@ -560,14 +577,13 @@ ncp_mount_subdir(struct ncp_server *server,
{
int dstNS;
int result;
-
- dstNS = ncp_get_known_namespace(server, volNumber);
+
+ ncp_update_known_namespace(server, volNumber, &dstNS);
if ((result = ncp_ObtainSpecificDirBase(server, srcNS, dstNS, volNumber,
dirEntNum, NULL, newDirEnt, newDosEnt)) != 0)
{
return result;
}
- server->name_space[volNumber] = dstNS;
*volume = volNumber;
server->m.mounted_vol[1] = 0;
server->m.mounted_vol[0] = 'X';
@@ -575,11 +591,10 @@ ncp_mount_subdir(struct ncp_server *server,
}
int
-ncp_get_volume_root(struct ncp_server *server, const char *volname,
- __u32* volume, __le32* dirent, __le32* dosdirent)
+ncp_get_volume_root(struct ncp_server *server,
+ const char *volname, __u32* volume, __le32* dirent, __le32* dosdirent)
{
int result;
- __u8 volnum;
DPRINTK("ncp_get_volume_root: looking up vol %s\n", volname);
@@ -601,21 +616,14 @@ ncp_get_volume_root(struct ncp_server *server, const char *volname,
return result;
}
*dirent = *dosdirent = ncp_reply_dword(server, 4);
- volnum = ncp_reply_byte(server, 8);
+ *volume = ncp_reply_byte(server, 8);
ncp_unlock_server(server);
- *volume = volnum;
-
- server->name_space[volnum] = ncp_get_known_namespace(server, volnum);
-
- DPRINTK("lookup_vol: namespace[%d] = %d\n",
- volnum, server->name_space[volnum]);
-
return 0;
}
int
-ncp_lookup_volume(struct ncp_server *server, const char *volname,
- struct nw_info_struct *target)
+ncp_lookup_volume(struct ncp_server *server,
+ const char *volname, struct nw_info_struct *target)
{
int result;
@@ -625,6 +633,7 @@ ncp_lookup_volume(struct ncp_server *server, const char *volname,
if (result) {
return result;
}
+ ncp_update_known_namespace(server, target->volNumber, NULL);
target->nameLen = strlen(volname);
memcpy(target->entryName, volname, target->nameLen+1);
target->attributes = aDIR;
@@ -676,8 +685,8 @@ int ncp_modify_nfs_info(struct ncp_server *server, __u8 volnum, __le32 dirent,
{
int result = 0;
+ ncp_init_request(server);
if (server->name_space[volnum] == NW_NS_NFS) {
- ncp_init_request(server);
ncp_add_byte(server, 25); /* subfunction */
ncp_add_byte(server, server->name_space[volnum]);
ncp_add_byte(server, NW_NS_NFS);
@@ -690,8 +699,8 @@ int ncp_modify_nfs_info(struct ncp_server *server, __u8 volnum, __le32 dirent,
ncp_add_dword_lh(server, 1); /* nlinks */
ncp_add_dword_lh(server, rdev);
result = ncp_request(server, 87);
- ncp_unlock_server(server);
}
+ ncp_unlock_server(server);
return result;
}
#endif
@@ -700,7 +709,7 @@ int ncp_modify_nfs_info(struct ncp_server *server, __u8 volnum, __le32 dirent,
static int
ncp_DeleteNSEntry(struct ncp_server *server,
__u8 have_dir_base, __u8 volnum, __le32 dirent,
- char* name, __u8 ns, __le16 attr)
+ const char* name, __u8 ns, __le16 attr)
{
int result;
@@ -734,23 +743,25 @@ ncp_del_file_or_subdir2(struct ncp_server *server,
int
ncp_del_file_or_subdir(struct ncp_server *server,
- struct inode *dir, char *name)
+ struct inode *dir, const char *name)
{
__u8 volnum = NCP_FINFO(dir)->volNumber;
__le32 dirent = NCP_FINFO(dir)->dirEntNum;
+ int name_space;
+ name_space = server->name_space[volnum];
#ifdef CONFIG_NCPFS_NFS_NS
- if (server->name_space[volnum]==NW_NS_NFS)
+ if (name_space == NW_NS_NFS)
{
int result;
- result=ncp_obtain_DOS_dir_base(server, volnum, dirent, name, &dirent);
+ result=ncp_obtain_DOS_dir_base(server, name_space, volnum, dirent, name, &dirent);
if (result) return result;
- return ncp_DeleteNSEntry(server, 1, volnum, dirent, NULL, NW_NS_DOS, cpu_to_le16(0x8006));
+ name = NULL;
+ name_space = NW_NS_DOS;
}
- else
#endif /* CONFIG_NCPFS_NFS_NS */
- return ncp_DeleteNSEntry(server, 1, volnum, dirent, name, server->name_space[volnum], cpu_to_le16(0x8006));
+ return ncp_DeleteNSEntry(server, 1, volnum, dirent, name, name_space, cpu_to_le16(0x8006));
}
static inline void ConvertToNWfromDWORD(__u16 v0, __u16 v1, __u8 ret[6])
@@ -765,7 +776,7 @@ static inline void ConvertToNWfromDWORD(__u16 v0, __u16 v1, __u8 ret[6])
/* If both dir and name are NULL, then in target there's already a
looked-up entry that wants to be opened. */
int ncp_open_create_file_or_subdir(struct ncp_server *server,
- struct inode *dir, char *name,
+ struct inode *dir, const char *name,
int open_create_mode,
__le32 create_attributes,
__le16 desired_acc_rights,
@@ -890,8 +901,8 @@ int ncp_search_for_fileset(struct ncp_server *server,
static int
ncp_RenameNSEntry(struct ncp_server *server,
- struct inode *old_dir, char *old_name, __le16 old_type,
- struct inode *new_dir, char *new_name)
+ struct inode *old_dir, const char *old_name, __le16 old_type,
+ struct inode *new_dir, const char *new_name)
{
int result = -EINVAL;
@@ -929,8 +940,8 @@ out:
}
int ncp_ren_or_mov_file_or_subdir(struct ncp_server *server,
- struct inode *old_dir, char *old_name,
- struct inode *new_dir, char *new_name)
+ struct inode *old_dir, const char *old_name,
+ struct inode *new_dir, const char *new_name)
{
int result;
__le16 old_type = cpu_to_le16(0x06);
@@ -958,7 +969,7 @@ int
ncp_read_kernel(struct ncp_server *server, const char *file_id,
__u32 offset, __u16 to_read, char *target, int *bytes_read)
{
- char *source;
+ const char *source;
int result;
ncp_init_request(server);