| /* |
| * inode.c |
| * |
| * 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 Wolfram Pienkoss for NLS |
| * |
| */ |
| |
| #include <linux/config.h> |
| #include <linux/module.h> |
| |
| #include <asm/system.h> |
| #include <asm/uaccess.h> |
| #include <asm/byteorder.h> |
| |
| #include <linux/sched.h> |
| #include <linux/kernel.h> |
| #include <linux/mm.h> |
| #include <linux/string.h> |
| #include <linux/stat.h> |
| #include <linux/errno.h> |
| #include <linux/locks.h> |
| #include <linux/file.h> |
| #include <linux/fcntl.h> |
| #include <linux/slab.h> |
| #include <linux/vmalloc.h> |
| #include <linux/init.h> |
| |
| #include <linux/ncp_fs.h> |
| |
| #include "ncplib_kernel.h" |
| |
| static void ncp_delete_inode(struct inode *); |
| static void ncp_put_super(struct super_block *); |
| static int ncp_statfs(struct super_block *, struct statfs *); |
| |
| static kmem_cache_t * ncp_inode_cachep; |
| |
| static struct inode *ncp_alloc_inode(struct super_block *sb) |
| { |
| struct ncp_inode_info *ei; |
| ei = (struct ncp_inode_info *)kmem_cache_alloc(ncp_inode_cachep, SLAB_KERNEL); |
| if (!ei) |
| return NULL; |
| return &ei->vfs_inode; |
| } |
| |
| static void ncp_destroy_inode(struct inode *inode) |
| { |
| kmem_cache_free(ncp_inode_cachep, NCP_FINFO(inode)); |
| } |
| |
| static void init_once(void * foo, kmem_cache_t * cachep, unsigned long flags) |
| { |
| struct ncp_inode_info *ei = (struct ncp_inode_info *) foo; |
| |
| if ((flags & (SLAB_CTOR_VERIFY|SLAB_CTOR_CONSTRUCTOR)) == |
| SLAB_CTOR_CONSTRUCTOR) { |
| init_MUTEX(&ei->open_sem); |
| inode_init_once(&ei->vfs_inode); |
| } |
| } |
| |
| static int init_inodecache(void) |
| { |
| ncp_inode_cachep = kmem_cache_create("ncp_inode_cache", |
| sizeof(struct ncp_inode_info), |
| 0, SLAB_HWCACHE_ALIGN, |
| init_once, NULL); |
| if (ncp_inode_cachep == NULL) |
| return -ENOMEM; |
| return 0; |
| } |
| |
| static void destroy_inodecache(void) |
| { |
| if (kmem_cache_destroy(ncp_inode_cachep)) |
| printk(KERN_INFO "ncp_inode_cache: not all structures were freed\n"); |
| } |
| |
| static struct super_operations ncp_sops = |
| { |
| alloc_inode: ncp_alloc_inode, |
| destroy_inode: ncp_destroy_inode, |
| put_inode: force_delete, |
| delete_inode: ncp_delete_inode, |
| put_super: ncp_put_super, |
| statfs: ncp_statfs, |
| }; |
| |
| extern struct dentry_operations ncp_dentry_operations; |
| #ifdef CONFIG_NCPFS_EXTRAS |
| extern struct address_space_operations ncp_symlink_aops; |
| extern int ncp_symlink(struct inode*, struct dentry*, const char*); |
| #endif |
| |
| /* |
| * Fill in the ncpfs-specific information in the inode. |
| */ |
| void ncp_update_inode(struct inode *inode, struct ncp_entry_info *nwinfo) |
| { |
| NCP_FINFO(inode)->DosDirNum = nwinfo->i.DosDirNum; |
| NCP_FINFO(inode)->dirEntNum = nwinfo->i.dirEntNum; |
| NCP_FINFO(inode)->volNumber = nwinfo->i.volNumber; |
| |
| #ifdef CONFIG_NCPFS_STRONG |
| NCP_FINFO(inode)->nwattr = nwinfo->i.attributes; |
| #else |
| NCP_FINFO(inode)->nwattr = nwinfo->i.attributes; |
| #endif |
| NCP_FINFO(inode)->access = nwinfo->access; |
| NCP_FINFO(inode)->server_file_handle = nwinfo->server_file_handle; |
| memcpy(NCP_FINFO(inode)->file_handle, nwinfo->file_handle, |
| sizeof(nwinfo->file_handle)); |
| DPRINTK("ncp_update_inode: updated %s, volnum=%d, dirent=%u\n", |
| nwinfo->i.entryName, NCP_FINFO(inode)->volNumber, |
| NCP_FINFO(inode)->dirEntNum); |
| } |
| |
| void ncp_update_inode2(struct inode* inode, struct ncp_entry_info *nwinfo) |
| { |
| struct nw_info_struct *nwi = &nwinfo->i; |
| struct ncp_server *server = NCP_SERVER(inode); |
| |
| if (!atomic_read(&NCP_FINFO(inode)->opened)) { |
| #ifdef CONFIG_NCPFS_STRONG |
| NCP_FINFO(inode)->nwattr = nwi->attributes; |
| #endif |
| if (nwi->attributes & aDIR) { |
| inode->i_mode = server->m.dir_mode; |
| inode->i_size = NCP_BLOCK_SIZE; |
| } else { |
| inode->i_mode = server->m.file_mode; |
| inode->i_size = le32_to_cpu(nwi->dataStreamSize); |
| #ifdef CONFIG_NCPFS_EXTRAS |
| if ((server->m.flags & (NCP_MOUNT_EXTRAS|NCP_MOUNT_SYMLINKS)) && (nwi->attributes & aSHARED)) { |
| switch (nwi->attributes & (aHIDDEN|aSYSTEM)) { |
| case aHIDDEN: |
| if (server->m.flags & NCP_MOUNT_SYMLINKS) { |
| if ( /* (inode->i_size >= NCP_MIN_SYMLINK_SIZE) |
| && */ (inode->i_size <= NCP_MAX_SYMLINK_SIZE)) { |
| inode->i_mode = (inode->i_mode & ~S_IFMT) | S_IFLNK; |
| break; |
| } |
| } |
| /* FALLTHROUGH */ |
| case 0: |
| if (server->m.flags & NCP_MOUNT_EXTRAS) |
| inode->i_mode |= 0444; |
| break; |
| case aSYSTEM: |
| if (server->m.flags & NCP_MOUNT_EXTRAS) |
| inode->i_mode |= (inode->i_mode >> 2) & 0111; |
| break; |
| /* case aSYSTEM|aHIDDEN: */ |
| default: |
| /* reserved combination */ |
| break; |
| } |
| } |
| #endif |
| } |
| if (nwi->attributes & aRONLY) inode->i_mode &= ~0222; |
| } |
| inode->i_blocks = (inode->i_size + NCP_BLOCK_SIZE - 1) >> NCP_BLOCK_SHIFT; |
| |
| inode->i_mtime = ncp_date_dos2unix(le16_to_cpu(nwi->modifyTime), |
| le16_to_cpu(nwi->modifyDate)); |
| inode->i_ctime = ncp_date_dos2unix(le16_to_cpu(nwi->creationTime), |
| le16_to_cpu(nwi->creationDate)); |
| inode->i_atime = ncp_date_dos2unix(0, le16_to_cpu(nwi->lastAccessDate)); |
| |
| NCP_FINFO(inode)->DosDirNum = nwi->DosDirNum; |
| NCP_FINFO(inode)->dirEntNum = nwi->dirEntNum; |
| NCP_FINFO(inode)->volNumber = nwi->volNumber; |
| } |
| |
| /* |
| * Fill in the inode based on the ncp_entry_info structure. |
| */ |
| static void ncp_set_attr(struct inode *inode, struct ncp_entry_info *nwinfo) |
| { |
| struct nw_info_struct *nwi = &nwinfo->i; |
| struct ncp_server *server = NCP_SERVER(inode); |
| |
| if (nwi->attributes & aDIR) { |
| inode->i_mode = server->m.dir_mode; |
| /* for directories dataStreamSize seems to be some |
| Object ID ??? */ |
| inode->i_size = NCP_BLOCK_SIZE; |
| } else { |
| inode->i_mode = server->m.file_mode; |
| inode->i_size = le32_to_cpu(nwi->dataStreamSize); |
| #ifdef CONFIG_NCPFS_EXTRAS |
| if ((server->m.flags & (NCP_MOUNT_EXTRAS|NCP_MOUNT_SYMLINKS)) |
| && (nwi->attributes & aSHARED)) { |
| switch (nwi->attributes & (aHIDDEN|aSYSTEM)) { |
| case aHIDDEN: |
| if (server->m.flags & NCP_MOUNT_SYMLINKS) { |
| if (/* (inode->i_size >= NCP_MIN_SYMLINK_SIZE) |
| && */ (inode->i_size <= NCP_MAX_SYMLINK_SIZE)) { |
| inode->i_mode = (inode->i_mode & ~S_IFMT) | S_IFLNK; |
| break; |
| } |
| } |
| /* FALLTHROUGH */ |
| case 0: |
| if (server->m.flags & NCP_MOUNT_EXTRAS) |
| inode->i_mode |= 0444; |
| break; |
| case aSYSTEM: |
| if (server->m.flags & NCP_MOUNT_EXTRAS) |
| inode->i_mode |= (inode->i_mode >> 2) & 0111; |
| break; |
| /* case aSYSTEM|aHIDDEN: */ |
| default: |
| /* reserved combination */ |
| break; |
| } |
| } |
| #endif |
| } |
| if (nwi->attributes & aRONLY) inode->i_mode &= ~0222; |
| |
| DDPRINTK("ncp_read_inode: inode->i_mode = %u\n", inode->i_mode); |
| |
| inode->i_nlink = 1; |
| inode->i_uid = server->m.uid; |
| inode->i_gid = server->m.gid; |
| inode->i_rdev = NODEV; |
| inode->i_blksize = NCP_BLOCK_SIZE; |
| |
| inode->i_blocks = (inode->i_size + NCP_BLOCK_SIZE - 1) >> NCP_BLOCK_SHIFT; |
| |
| inode->i_mtime = ncp_date_dos2unix(le16_to_cpu(nwi->modifyTime), |
| le16_to_cpu(nwi->modifyDate)); |
| inode->i_ctime = ncp_date_dos2unix(le16_to_cpu(nwi->creationTime), |
| le16_to_cpu(nwi->creationDate)); |
| inode->i_atime = ncp_date_dos2unix(0, |
| le16_to_cpu(nwi->lastAccessDate)); |
| ncp_update_inode(inode, nwinfo); |
| } |
| |
| static struct inode_operations ncp_symlink_inode_operations = { |
| readlink: page_readlink, |
| follow_link: page_follow_link, |
| setattr: ncp_notify_change, |
| }; |
| |
| /* |
| * Get a new inode. |
| */ |
| struct inode * |
| ncp_iget(struct super_block *sb, struct ncp_entry_info *info) |
| { |
| struct inode *inode; |
| |
| if (info == NULL) { |
| printk(KERN_ERR "ncp_iget: info is NULL\n"); |
| return NULL; |
| } |
| |
| inode = new_inode(sb); |
| if (inode) { |
| atomic_set(&NCP_FINFO(inode)->opened, info->opened); |
| |
| inode->i_ino = info->ino; |
| ncp_set_attr(inode, info); |
| if (S_ISREG(inode->i_mode)) { |
| inode->i_op = &ncp_file_inode_operations; |
| inode->i_fop = &ncp_file_operations; |
| } else if (S_ISDIR(inode->i_mode)) { |
| inode->i_op = &ncp_dir_inode_operations; |
| inode->i_fop = &ncp_dir_operations; |
| #ifdef CONFIG_NCPFS_EXTRAS |
| } else if (S_ISLNK(inode->i_mode)) { |
| inode->i_op = &ncp_symlink_inode_operations; |
| inode->i_data.a_ops = &ncp_symlink_aops; |
| #endif |
| } |
| insert_inode_hash(inode); |
| } else |
| printk(KERN_ERR "ncp_iget: iget failed!\n"); |
| return inode; |
| } |
| |
| static void |
| ncp_delete_inode(struct inode *inode) |
| { |
| if (S_ISDIR(inode->i_mode)) { |
| DDPRINTK("ncp_delete_inode: put directory %ld\n", inode->i_ino); |
| } |
| |
| if (ncp_make_closed(inode) != 0) { |
| /* We can't do anything but complain. */ |
| printk(KERN_ERR "ncp_delete_inode: could not close\n"); |
| } |
| clear_inode(inode); |
| } |
| |
| struct super_block * |
| ncp_read_super(struct super_block *sb, void *raw_data, int silent) |
| { |
| struct ncp_mount_data_kernel data; |
| struct ncp_server *server; |
| struct file *ncp_filp; |
| struct inode *root_inode; |
| struct inode *sock_inode; |
| struct socket *sock; |
| int error; |
| int default_bufsize; |
| #ifdef CONFIG_NCPFS_PACKET_SIGNING |
| int options; |
| #endif |
| struct ncp_entry_info finfo; |
| |
| if (raw_data == NULL) |
| goto out_no_data; |
| switch (*(int*)raw_data) { |
| case NCP_MOUNT_VERSION: |
| { |
| struct ncp_mount_data* md = (struct ncp_mount_data*)raw_data; |
| |
| data.flags = md->flags; |
| data.int_flags = NCP_IMOUNT_LOGGEDIN_POSSIBLE; |
| data.mounted_uid = md->mounted_uid; |
| data.wdog_pid = md->wdog_pid; |
| data.ncp_fd = md->ncp_fd; |
| data.time_out = md->time_out; |
| data.retry_count = md->retry_count; |
| data.uid = md->uid; |
| data.gid = md->gid; |
| data.file_mode = md->file_mode; |
| data.dir_mode = md->dir_mode; |
| memcpy(data.mounted_vol, md->mounted_vol, |
| NCP_VOLNAME_LEN+1); |
| } |
| break; |
| case NCP_MOUNT_VERSION_V4: |
| { |
| struct ncp_mount_data_v4* md = (struct ncp_mount_data_v4*)raw_data; |
| |
| data.flags = md->flags; |
| data.int_flags = 0; |
| data.mounted_uid = md->mounted_uid; |
| data.wdog_pid = md->wdog_pid; |
| data.ncp_fd = md->ncp_fd; |
| data.time_out = md->time_out; |
| data.retry_count = md->retry_count; |
| data.uid = md->uid; |
| data.gid = md->gid; |
| data.file_mode = md->file_mode; |
| data.dir_mode = md->dir_mode; |
| data.mounted_vol[0] = 0; |
| } |
| break; |
| default: |
| goto out_bad_mount; |
| } |
| ncp_filp = fget(data.ncp_fd); |
| if (!ncp_filp) |
| goto out_bad_file; |
| sock_inode = ncp_filp->f_dentry->d_inode; |
| if (!S_ISSOCK(sock_inode->i_mode)) |
| goto out_bad_file2; |
| sock = SOCKET_I(sock_inode); |
| if (!sock) |
| goto out_bad_file2; |
| |
| if (sock->type == SOCK_STREAM) |
| default_bufsize = 61440; |
| else |
| default_bufsize = 1024; |
| |
| sb->s_blocksize = 1024; /* Eh... Is this correct? */ |
| sb->s_blocksize_bits = 10; |
| sb->s_magic = NCP_SUPER_MAGIC; |
| sb->s_op = &ncp_sops; |
| |
| server = NCP_SBP(sb); |
| memset(server, 0, sizeof(*server)); |
| |
| server->ncp_filp = ncp_filp; |
| /* server->lock = 0; */ |
| init_MUTEX(&server->sem); |
| server->packet = NULL; |
| /* server->buffer_size = 0; */ |
| /* server->conn_status = 0; */ |
| /* server->root_dentry = NULL; */ |
| /* server->root_setuped = 0; */ |
| #ifdef CONFIG_NCPFS_PACKET_SIGNING |
| /* server->sign_wanted = 0; */ |
| /* server->sign_active = 0; */ |
| #endif |
| server->auth.auth_type = NCP_AUTH_NONE; |
| /* server->auth.object_name_len = 0; */ |
| /* server->auth.object_name = NULL; */ |
| /* server->auth.object_type = 0; */ |
| /* server->priv.len = 0; */ |
| /* server->priv.data = NULL; */ |
| |
| server->m = data; |
| /* Althought anything producing this is buggy, it happens |
| now because of PATH_MAX changes.. */ |
| if (server->m.time_out < 1) { |
| server->m.time_out = 10; |
| printk(KERN_INFO "You need to recompile your ncpfs utils..\n"); |
| } |
| server->m.time_out = server->m.time_out * HZ / 100; |
| server->m.file_mode = (server->m.file_mode & |
| (S_IRWXU | S_IRWXG | S_IRWXO)) | S_IFREG; |
| server->m.dir_mode = (server->m.dir_mode & |
| (S_IRWXU | S_IRWXG | S_IRWXO)) | S_IFDIR; |
| |
| #ifdef CONFIG_NCPFS_NLS |
| /* load the default NLS charsets */ |
| server->nls_vol = load_nls_default(); |
| server->nls_io = load_nls_default(); |
| #endif /* CONFIG_NCPFS_NLS */ |
| |
| server->dentry_ttl = 0; /* no caching */ |
| |
| #undef NCP_PACKET_SIZE |
| #define NCP_PACKET_SIZE 65536 |
| server->packet_size = NCP_PACKET_SIZE; |
| server->packet = vmalloc(NCP_PACKET_SIZE); |
| if (server->packet == NULL) |
| goto out_no_packet; |
| |
| ncp_lock_server(server); |
| error = ncp_connect(server); |
| ncp_unlock_server(server); |
| if (error < 0) |
| goto out_no_connect; |
| DPRINTK("ncp_read_super: NCP_SBP(sb) = %x\n", (int) NCP_SBP(sb)); |
| |
| #ifdef CONFIG_NCPFS_PACKET_SIGNING |
| if (ncp_negotiate_size_and_options(server, default_bufsize, |
| NCP_DEFAULT_OPTIONS, &(server->buffer_size), &options) == 0) |
| { |
| if (options != NCP_DEFAULT_OPTIONS) |
| { |
| if (ncp_negotiate_size_and_options(server, |
| default_bufsize, |
| options & 2, |
| &(server->buffer_size), &options) != 0) |
| |
| { |
| goto out_no_bufsize; |
| } |
| } |
| if (options & 2) |
| server->sign_wanted = 1; |
| } |
| else |
| #endif /* CONFIG_NCPFS_PACKET_SIGNING */ |
| if (ncp_negotiate_buffersize(server, default_bufsize, |
| &(server->buffer_size)) != 0) |
| goto out_no_bufsize; |
| DPRINTK("ncpfs: bufsize = %d\n", server->buffer_size); |
| |
| memset(&finfo, 0, sizeof(finfo)); |
| finfo.i.attributes = aDIR; |
| finfo.i.dataStreamSize = NCP_BLOCK_SIZE; |
| finfo.i.dirEntNum = 0; |
| finfo.i.DosDirNum = 0; |
| #ifdef CONFIG_NCPFS_SMALLDOS |
| finfo.i.NSCreator = NW_NS_DOS; |
| #endif |
| finfo.i.volNumber = NCP_NUMBER_OF_VOLUMES + 1; /* illegal volnum */ |
| /* set dates of mountpoint to Jan 1, 1986; 00:00 */ |
| finfo.i.creationTime = finfo.i.modifyTime |
| = cpu_to_le16(0x0000); |
| finfo.i.creationDate = finfo.i.modifyDate |
| = finfo.i.lastAccessDate |
| = cpu_to_le16(0x0C21); |
| finfo.i.nameLen = 0; |
| finfo.i.entryName[0] = '\0'; |
| |
| finfo.opened = 0; |
| finfo.ino = 2; /* tradition */ |
| |
| server->name_space[finfo.i.volNumber] = NW_NS_DOS; |
| root_inode = ncp_iget(sb, &finfo); |
| if (!root_inode) |
| goto out_no_root; |
| DPRINTK("ncp_read_super: root vol=%d\n", NCP_FINFO(root_inode)->volNumber); |
| sb->s_root = d_alloc_root(root_inode); |
| if (!sb->s_root) |
| goto out_no_root; |
| sb->s_root->d_op = &ncp_dentry_operations; |
| return sb; |
| |
| out_no_root: |
| printk(KERN_ERR "ncp_read_super: get root inode failed\n"); |
| iput(root_inode); |
| goto out_disconnect; |
| out_no_bufsize: |
| printk(KERN_ERR "ncp_read_super: could not get bufsize\n"); |
| out_disconnect: |
| ncp_lock_server(server); |
| ncp_disconnect(server); |
| ncp_unlock_server(server); |
| goto out_free_packet; |
| out_no_connect: |
| printk(KERN_ERR "ncp_read_super: Failed connection, error=%d\n", error); |
| out_free_packet: |
| vfree(server->packet); |
| goto out_free_server; |
| out_no_packet: |
| printk(KERN_ERR "ncp_read_super: could not alloc packet\n"); |
| out_free_server: |
| #ifdef CONFIG_NCPFS_NLS |
| unload_nls(server->nls_io); |
| unload_nls(server->nls_vol); |
| #endif |
| /* 23/12/1998 Marcin Dalecki <dalecki@cs.net.pl>: |
| * |
| * The previously used put_filp(ncp_filp); was bogous, since |
| * it doesn't proper unlocking. |
| */ |
| fput(ncp_filp); |
| goto out; |
| |
| out_bad_file2: |
| fput(ncp_filp); |
| out_bad_file: |
| printk(KERN_ERR "ncp_read_super: invalid ncp socket\n"); |
| goto out; |
| out_bad_mount: |
| printk(KERN_INFO "ncp_read_super: kernel requires mount version %d\n", |
| NCP_MOUNT_VERSION); |
| goto out; |
| out_no_data: |
| printk(KERN_ERR "ncp_read_super: missing data argument\n"); |
| out: |
| return NULL; |
| } |
| |
| static void ncp_put_super(struct super_block *sb) |
| { |
| struct ncp_server *server = NCP_SBP(sb); |
| |
| ncp_lock_server(server); |
| ncp_disconnect(server); |
| ncp_unlock_server(server); |
| |
| #ifdef CONFIG_NCPFS_NLS |
| /* unload the NLS charsets */ |
| if (server->nls_vol) |
| { |
| unload_nls(server->nls_vol); |
| server->nls_vol = NULL; |
| } |
| if (server->nls_io) |
| { |
| unload_nls(server->nls_io); |
| server->nls_io = NULL; |
| } |
| #endif /* CONFIG_NCPFS_NLS */ |
| |
| fput(server->ncp_filp); |
| kill_proc(server->m.wdog_pid, SIGTERM, 1); |
| |
| if (server->priv.data) |
| ncp_kfree_s(server->priv.data, server->priv.len); |
| if (server->auth.object_name) |
| ncp_kfree_s(server->auth.object_name, server->auth.object_name_len); |
| vfree(server->packet); |
| |
| } |
| |
| static int ncp_statfs(struct super_block *sb, struct statfs *buf) |
| { |
| /* We cannot say how much disk space is left on a mounted |
| NetWare Server, because free space is distributed over |
| volumes, and the current user might have disk quotas. So |
| free space is not that simple to determine. Our decision |
| here is to err conservatively. */ |
| |
| buf->f_type = NCP_SUPER_MAGIC; |
| buf->f_bsize = NCP_BLOCK_SIZE; |
| buf->f_blocks = 0; |
| buf->f_bfree = 0; |
| buf->f_bavail = 0; |
| buf->f_namelen = 12; |
| return 0; |
| } |
| |
| int ncp_notify_change(struct dentry *dentry, struct iattr *attr) |
| { |
| struct inode *inode = dentry->d_inode; |
| int result = 0; |
| int info_mask; |
| struct nw_modify_dos_info info; |
| struct ncp_server *server; |
| |
| result = -EIO; |
| |
| server = NCP_SERVER(inode); |
| if ((!server) || !ncp_conn_valid(server)) |
| goto out; |
| |
| /* ageing the dentry to force validation */ |
| ncp_age_dentry(server, dentry); |
| |
| result = inode_change_ok(inode, attr); |
| if (result < 0) |
| goto out; |
| |
| result = -EPERM; |
| if (((attr->ia_valid & ATTR_UID) && |
| (attr->ia_uid != server->m.uid))) |
| goto out; |
| |
| if (((attr->ia_valid & ATTR_GID) && |
| (attr->ia_gid != server->m.gid))) |
| goto out; |
| |
| if (((attr->ia_valid & ATTR_MODE) && |
| (attr->ia_mode & |
| ~(S_IFREG | S_IFDIR | S_IRWXU | S_IRWXG | S_IRWXO)))) |
| goto out; |
| |
| info_mask = 0; |
| memset(&info, 0, sizeof(info)); |
| |
| #if 1 |
| if ((attr->ia_valid & ATTR_MODE) != 0) |
| { |
| if (S_ISDIR(inode->i_mode)) { |
| umode_t newmode; |
| |
| info_mask |= DM_ATTRIBUTES; |
| newmode = attr->ia_mode; |
| newmode &= NCP_SERVER(inode)->m.dir_mode; |
| |
| if (newmode & 0222) |
| info.attributes &= ~(aRONLY|aRENAMEINHIBIT|aDELETEINHIBIT); |
| else |
| info.attributes |= (aRONLY|aRENAMEINHIBIT|aDELETEINHIBIT); |
| } else if (!S_ISREG(inode->i_mode)) |
| { |
| return -EPERM; |
| } |
| else |
| { |
| umode_t newmode; |
| #ifdef CONFIG_NCPFS_EXTRAS |
| int extras; |
| |
| extras = server->m.flags & NCP_MOUNT_EXTRAS; |
| #endif |
| info_mask |= DM_ATTRIBUTES; |
| newmode=attr->ia_mode; |
| #ifdef CONFIG_NCPFS_EXTRAS |
| if (!extras) |
| #endif |
| newmode &= server->m.file_mode; |
| |
| if (newmode & 0222) /* any write bit set */ |
| { |
| info.attributes &= ~(aRONLY|aRENAMEINHIBIT|aDELETEINHIBIT); |
| } |
| else |
| { |
| info.attributes |= (aRONLY|aRENAMEINHIBIT|aDELETEINHIBIT); |
| } |
| #ifdef CONFIG_NCPFS_EXTRAS |
| if (extras) { |
| if (newmode & 0111) /* any execute bit set */ |
| info.attributes |= aSHARED | aSYSTEM; |
| /* read for group/world and not in default file_mode */ |
| else if (newmode & ~server->m.file_mode & 0444) |
| info.attributes |= aSHARED; |
| } |
| #endif |
| } |
| } |
| #endif |
| |
| if ((attr->ia_valid & ATTR_CTIME) != 0) { |
| info_mask |= (DM_CREATE_TIME | DM_CREATE_DATE); |
| ncp_date_unix2dos(attr->ia_ctime, |
| &(info.creationTime), &(info.creationDate)); |
| info.creationTime = le16_to_cpu(info.creationTime); |
| info.creationDate = le16_to_cpu(info.creationDate); |
| } |
| if ((attr->ia_valid & ATTR_MTIME) != 0) { |
| info_mask |= (DM_MODIFY_TIME | DM_MODIFY_DATE); |
| ncp_date_unix2dos(attr->ia_mtime, |
| &(info.modifyTime), &(info.modifyDate)); |
| info.modifyTime = le16_to_cpu(info.modifyTime); |
| info.modifyDate = le16_to_cpu(info.modifyDate); |
| } |
| if ((attr->ia_valid & ATTR_ATIME) != 0) { |
| __u16 dummy; |
| info_mask |= (DM_LAST_ACCESS_DATE); |
| ncp_date_unix2dos(attr->ia_ctime, |
| &(dummy), &(info.lastAccessDate)); |
| info.lastAccessDate = le16_to_cpu(info.lastAccessDate); |
| } |
| if (info_mask != 0) { |
| result = ncp_modify_file_or_subdir_dos_info(NCP_SERVER(inode), |
| inode, info_mask, &info); |
| if (result != 0) { |
| result = -EACCES; |
| |
| if (info_mask == (DM_CREATE_TIME | DM_CREATE_DATE)) { |
| /* NetWare seems not to allow this. I |
| do not know why. So, just tell the |
| user everything went fine. This is |
| a terrible hack, but I do not know |
| how to do this correctly. */ |
| result = 0; |
| } |
| } |
| #ifdef CONFIG_NCPFS_STRONG |
| if ((!result) && (info_mask & DM_ATTRIBUTES)) |
| NCP_FINFO(inode)->nwattr = info.attributes; |
| #endif |
| } |
| if ((attr->ia_valid & ATTR_SIZE) != 0) { |
| int written; |
| |
| DPRINTK("ncpfs: trying to change size to %ld\n", |
| attr->ia_size); |
| |
| if ((result = ncp_make_open(inode, O_WRONLY)) < 0) { |
| return -EACCES; |
| } |
| ncp_write_kernel(NCP_SERVER(inode), NCP_FINFO(inode)->file_handle, |
| attr->ia_size, 0, "", &written); |
| |
| /* According to ndir, the changes only take effect after |
| closing the file */ |
| ncp_inode_close(inode); |
| result = ncp_make_closed(inode); |
| if (!result) |
| result = vmtruncate(inode, attr->ia_size); |
| } |
| out: |
| return result; |
| } |
| |
| #ifdef DEBUG_NCP_MALLOC |
| int ncp_malloced; |
| int ncp_current_malloced; |
| #endif |
| |
| static DECLARE_FSTYPE(ncp_fs_type, "ncpfs", ncp_read_super, 0); |
| |
| static int __init init_ncp_fs(void) |
| { |
| int err; |
| DPRINTK("ncpfs: init_module called\n"); |
| |
| #ifdef DEBUG_NCP_MALLOC |
| ncp_malloced = 0; |
| ncp_current_malloced = 0; |
| #endif |
| err = init_inodecache(); |
| if (err) |
| goto out1; |
| err = register_filesystem(&ncp_fs_type); |
| if (err) |
| goto out; |
| return 0; |
| out: |
| destroy_inodecache(); |
| out1: |
| return err; |
| } |
| |
| static void __exit exit_ncp_fs(void) |
| { |
| DPRINTK("ncpfs: cleanup_module called\n"); |
| unregister_filesystem(&ncp_fs_type); |
| destroy_inodecache(); |
| #ifdef DEBUG_NCP_MALLOC |
| PRINTK("ncp_malloced: %d\n", ncp_malloced); |
| PRINTK("ncp_current_malloced: %d\n", ncp_current_malloced); |
| #endif |
| } |
| |
| EXPORT_NO_SYMBOLS; |
| |
| module_init(init_ncp_fs) |
| module_exit(exit_ncp_fs) |
| MODULE_LICENSE("GPL"); |