| /* |
| * 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 |
| * Modified 2000 Ben Harris, University of Cambridge for NFS NS meta-info |
| * |
| */ |
| |
| #include <linux/module.h> |
| |
| #include <asm/system.h> |
| #include <asm/uaccess.h> |
| #include <asm/byteorder.h> |
| |
| #include <linux/time.h> |
| #include <linux/kernel.h> |
| #include <linux/mm.h> |
| #include <linux/string.h> |
| #include <linux/stat.h> |
| #include <linux/errno.h> |
| #include <linux/file.h> |
| #include <linux/fcntl.h> |
| #include <linux/slab.h> |
| #include <linux/vmalloc.h> |
| #include <linux/init.h> |
| #include <linux/smp_lock.h> |
| #include <linux/vfs.h> |
| |
| #include <linux/ncp_fs.h> |
| |
| #include <net/sock.h> |
| |
| #include "ncplib_kernel.h" |
| #include "getopt.h" |
| |
| static void ncp_delete_inode(struct inode *); |
| static void ncp_put_super(struct super_block *); |
| static int ncp_statfs(struct dentry *, struct kstatfs *); |
| |
| static struct kmem_cache * 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, GFP_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, struct kmem_cache * 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) { |
| mutex_init(&ei->open_mutex); |
| 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_RECLAIM_ACCOUNT| |
| SLAB_MEM_SPREAD), |
| init_once, NULL); |
| if (ncp_inode_cachep == NULL) |
| return -ENOMEM; |
| return 0; |
| } |
| |
| static void destroy_inodecache(void) |
| { |
| kmem_cache_destroy(ncp_inode_cachep); |
| } |
| |
| static int ncp_remount(struct super_block *sb, int *flags, char* data) |
| { |
| *flags |= MS_NODIRATIME; |
| return 0; |
| } |
| |
| static struct super_operations ncp_sops = |
| { |
| .alloc_inode = ncp_alloc_inode, |
| .destroy_inode = ncp_destroy_inode, |
| .drop_inode = generic_delete_inode, |
| .delete_inode = ncp_delete_inode, |
| .put_super = ncp_put_super, |
| .statfs = ncp_statfs, |
| .remount_fs = ncp_remount, |
| }; |
| |
| extern struct dentry_operations ncp_root_dentry_operations; |
| #if defined(CONFIG_NCPFS_EXTRAS) || defined(CONFIG_NCPFS_NFS_NS) |
| extern const 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. |
| */ |
| static void ncp_update_dirent(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->volume; |
| } |
| |
| void ncp_update_inode(struct inode *inode, struct ncp_entry_info *nwinfo) |
| { |
| ncp_update_dirent(inode, nwinfo); |
| NCP_FINFO(inode)->nwattr = nwinfo->i.attributes; |
| NCP_FINFO(inode)->access = nwinfo->access; |
| 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); |
| } |
| |
| static void ncp_update_dates(struct inode *inode, struct nw_info_struct *nwi) |
| { |
| /* NFS namespace mode overrides others if it's set. */ |
| DPRINTK(KERN_DEBUG "ncp_update_dates_and_mode: (%s) nfs.mode=0%o\n", |
| nwi->entryName, nwi->nfs.mode); |
| if (nwi->nfs.mode) { |
| /* XXX Security? */ |
| inode->i_mode = nwi->nfs.mode; |
| } |
| |
| inode->i_blocks = (inode->i_size + NCP_BLOCK_SIZE - 1) >> NCP_BLOCK_SHIFT; |
| |
| inode->i_mtime.tv_sec = ncp_date_dos2unix(nwi->modifyTime, nwi->modifyDate); |
| inode->i_ctime.tv_sec = ncp_date_dos2unix(nwi->creationTime, nwi->creationDate); |
| inode->i_atime.tv_sec = ncp_date_dos2unix(0, nwi->lastAccessDate); |
| inode->i_atime.tv_nsec = 0; |
| inode->i_mtime.tv_nsec = 0; |
| inode->i_ctime.tv_nsec = 0; |
| } |
| |
| static void ncp_update_attrs(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; |
| NCP_FINFO(inode)->flags |= NCPI_KLUDGE_SYMLINK; |
| break; |
| } |
| } |
| /* FALLTHROUGH */ |
| case 0: |
| if (server->m.flags & NCP_MOUNT_EXTRAS) |
| inode->i_mode |= S_IRUGO; |
| break; |
| case aSYSTEM: |
| if (server->m.flags & NCP_MOUNT_EXTRAS) |
| inode->i_mode |= (inode->i_mode >> 2) & S_IXUGO; |
| break; |
| /* case aSYSTEM|aHIDDEN: */ |
| default: |
| /* reserved combination */ |
| break; |
| } |
| } |
| #endif |
| } |
| if (nwi->attributes & aRONLY) inode->i_mode &= ~S_IWUGO; |
| } |
| |
| void ncp_update_inode2(struct inode* inode, struct ncp_entry_info *nwinfo) |
| { |
| NCP_FINFO(inode)->flags = 0; |
| if (!atomic_read(&NCP_FINFO(inode)->opened)) { |
| NCP_FINFO(inode)->nwattr = nwinfo->i.attributes; |
| ncp_update_attrs(inode, nwinfo); |
| } |
| |
| ncp_update_dates(inode, &nwinfo->i); |
| ncp_update_dirent(inode, nwinfo); |
| } |
| |
| /* |
| * 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 ncp_server *server = NCP_SERVER(inode); |
| |
| NCP_FINFO(inode)->flags = 0; |
| |
| ncp_update_attrs(inode, nwinfo); |
| |
| 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; |
| |
| ncp_update_dates(inode, &nwinfo->i); |
| ncp_update_inode(inode, nwinfo); |
| } |
| |
| #if defined(CONFIG_NCPFS_EXTRAS) || defined(CONFIG_NCPFS_NFS_NS) |
| static struct inode_operations ncp_symlink_inode_operations = { |
| .readlink = generic_readlink, |
| .follow_link = page_follow_link_light, |
| .put_link = page_put_link, |
| .setattr = ncp_notify_change, |
| }; |
| #endif |
| |
| /* |
| * 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_NFS_NS |
| } else if (S_ISCHR(inode->i_mode) || S_ISBLK(inode->i_mode) || S_ISFIFO(inode->i_mode) || S_ISSOCK(inode->i_mode)) { |
| init_special_inode(inode, inode->i_mode, |
| new_decode_dev(info->i.nfs.rdev)); |
| #endif |
| #if defined(CONFIG_NCPFS_EXTRAS) || defined(CONFIG_NCPFS_NFS_NS) |
| } else if (S_ISLNK(inode->i_mode)) { |
| inode->i_op = &ncp_symlink_inode_operations; |
| inode->i_data.a_ops = &ncp_symlink_aops; |
| #endif |
| } else { |
| make_bad_inode(inode); |
| } |
| insert_inode_hash(inode); |
| } else |
| printk(KERN_ERR "ncp_iget: iget failed!\n"); |
| return inode; |
| } |
| |
| static void |
| ncp_delete_inode(struct inode *inode) |
| { |
| truncate_inode_pages(&inode->i_data, 0); |
| |
| 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); |
| } |
| |
| static void ncp_stop_tasks(struct ncp_server *server) { |
| struct sock* sk = server->ncp_sock->sk; |
| |
| sk->sk_error_report = server->error_report; |
| sk->sk_data_ready = server->data_ready; |
| sk->sk_write_space = server->write_space; |
| del_timer_sync(&server->timeout_tm); |
| flush_scheduled_work(); |
| } |
| |
| static const struct ncp_option ncp_opts[] = { |
| { "uid", OPT_INT, 'u' }, |
| { "gid", OPT_INT, 'g' }, |
| { "owner", OPT_INT, 'o' }, |
| { "mode", OPT_INT, 'm' }, |
| { "dirmode", OPT_INT, 'd' }, |
| { "timeout", OPT_INT, 't' }, |
| { "retry", OPT_INT, 'r' }, |
| { "flags", OPT_INT, 'f' }, |
| { "wdogpid", OPT_INT, 'w' }, |
| { "ncpfd", OPT_INT, 'n' }, |
| { "infofd", OPT_INT, 'i' }, /* v5 */ |
| { "version", OPT_INT, 'v' }, |
| { NULL, 0, 0 } }; |
| |
| static int ncp_parse_options(struct ncp_mount_data_kernel *data, char *options) { |
| int optval; |
| char *optarg; |
| unsigned long optint; |
| int version = 0; |
| int ret; |
| |
| data->flags = 0; |
| data->int_flags = 0; |
| data->mounted_uid = 0; |
| data->wdog_pid = NULL; |
| data->ncp_fd = ~0; |
| data->time_out = 10; |
| data->retry_count = 20; |
| data->uid = 0; |
| data->gid = 0; |
| data->file_mode = 0600; |
| data->dir_mode = 0700; |
| data->info_fd = -1; |
| data->mounted_vol[0] = 0; |
| |
| while ((optval = ncp_getopt("ncpfs", &options, ncp_opts, NULL, &optarg, &optint)) != 0) { |
| ret = optval; |
| if (ret < 0) |
| goto err; |
| switch (optval) { |
| case 'u': |
| data->uid = optint; |
| break; |
| case 'g': |
| data->gid = optint; |
| break; |
| case 'o': |
| data->mounted_uid = optint; |
| break; |
| case 'm': |
| data->file_mode = optint; |
| break; |
| case 'd': |
| data->dir_mode = optint; |
| break; |
| case 't': |
| data->time_out = optint; |
| break; |
| case 'r': |
| data->retry_count = optint; |
| break; |
| case 'f': |
| data->flags = optint; |
| break; |
| case 'w': |
| data->wdog_pid = find_get_pid(optint); |
| break; |
| case 'n': |
| data->ncp_fd = optint; |
| break; |
| case 'i': |
| data->info_fd = optint; |
| break; |
| case 'v': |
| ret = -ECHRNG; |
| if (optint < NCP_MOUNT_VERSION_V4) |
| goto err; |
| if (optint > NCP_MOUNT_VERSION_V5) |
| goto err; |
| version = optint; |
| break; |
| |
| } |
| } |
| return 0; |
| err: |
| put_pid(data->wdog_pid); |
| data->wdog_pid = NULL; |
| return ret; |
| } |
| |
| static int ncp_fill_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; |
| |
| data.wdog_pid = NULL; |
| server = kzalloc(sizeof(struct ncp_server), GFP_KERNEL); |
| if (!server) |
| return -ENOMEM; |
| sb->s_fs_info = server; |
| |
| error = -EFAULT; |
| if (raw_data == NULL) |
| goto out; |
| 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 = find_get_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.info_fd = -1; |
| 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 = find_get_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.info_fd = -1; |
| data.mounted_vol[0] = 0; |
| } |
| break; |
| default: |
| error = -ECHRNG; |
| if (memcmp(raw_data, "vers", 4) == 0) { |
| error = ncp_parse_options(&data, raw_data); |
| } |
| if (error) |
| goto out; |
| break; |
| } |
| error = -EBADF; |
| ncp_filp = fget(data.ncp_fd); |
| if (!ncp_filp) |
| goto out; |
| error = -ENOTSOCK; |
| sock_inode = ncp_filp->f_path.dentry->d_inode; |
| if (!S_ISSOCK(sock_inode->i_mode)) |
| goto out_fput; |
| sock = SOCKET_I(sock_inode); |
| if (!sock) |
| goto out_fput; |
| |
| if (sock->type == SOCK_STREAM) |
| default_bufsize = 0xF000; |
| else |
| default_bufsize = 1024; |
| |
| sb->s_flags |= MS_NODIRATIME; /* probably even noatime */ |
| sb->s_maxbytes = 0xFFFFFFFFU; |
| 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->ncp_sock = sock; |
| |
| if (data.info_fd != -1) { |
| struct socket *info_sock; |
| |
| error = -EBADF; |
| server->info_filp = fget(data.info_fd); |
| if (!server->info_filp) |
| goto out_fput; |
| error = -ENOTSOCK; |
| sock_inode = server->info_filp->f_path.dentry->d_inode; |
| if (!S_ISSOCK(sock_inode->i_mode)) |
| goto out_fput2; |
| info_sock = SOCKET_I(sock_inode); |
| if (!info_sock) |
| goto out_fput2; |
| error = -EBADFD; |
| if (info_sock->type != SOCK_STREAM) |
| goto out_fput2; |
| server->info_sock = info_sock; |
| } |
| |
| /* server->lock = 0; */ |
| mutex_init(&server->mutex); |
| 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_IRWXUGO) | S_IFREG; |
| server->m.dir_mode = (server->m.dir_mode & S_IRWXUGO) | 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 */ |
| |
| INIT_LIST_HEAD(&server->tx.requests); |
| mutex_init(&server->rcv.creq_mutex); |
| server->tx.creq = NULL; |
| server->rcv.creq = NULL; |
| server->data_ready = sock->sk->sk_data_ready; |
| server->write_space = sock->sk->sk_write_space; |
| server->error_report = sock->sk->sk_error_report; |
| sock->sk->sk_user_data = server; |
| |
| init_timer(&server->timeout_tm); |
| #undef NCP_PACKET_SIZE |
| #define NCP_PACKET_SIZE 131072 |
| error = -ENOMEM; |
| server->packet_size = NCP_PACKET_SIZE; |
| server->packet = vmalloc(NCP_PACKET_SIZE); |
| if (server->packet == NULL) |
| goto out_nls; |
| |
| sock->sk->sk_data_ready = ncp_tcp_data_ready; |
| sock->sk->sk_error_report = ncp_tcp_error_report; |
| if (sock->type == SOCK_STREAM) { |
| server->rcv.ptr = (unsigned char*)&server->rcv.buf; |
| server->rcv.len = 10; |
| server->rcv.state = 0; |
| INIT_WORK(&server->rcv.tq, ncp_tcp_rcv_proc); |
| INIT_WORK(&server->tx.tq, ncp_tcp_tx_proc); |
| sock->sk->sk_write_space = ncp_tcp_write_space; |
| } else { |
| INIT_WORK(&server->rcv.tq, ncpdgram_rcv_proc); |
| INIT_WORK(&server->timeout_tq, ncpdgram_timeout_proc); |
| server->timeout_tm.data = (unsigned long)server; |
| server->timeout_tm.function = ncpdgram_timeout_call; |
| } |
| |
| ncp_lock_server(server); |
| error = ncp_connect(server); |
| ncp_unlock_server(server); |
| if (error < 0) |
| goto out_packet; |
| DPRINTK("ncp_fill_super: NCP_SBP(sb) = %x\n", (int) NCP_SBP(sb)); |
| |
| error = -EMSGSIZE; /* -EREMOTESIDEINCOMPATIBLE */ |
| #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_disconnect; |
| } |
| } |
| 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_disconnect; |
| DPRINTK("ncpfs: bufsize = %d\n", server->buffer_size); |
| |
| memset(&finfo, 0, sizeof(finfo)); |
| finfo.i.attributes = aDIR; |
| finfo.i.dataStreamSize = 0; /* ignored */ |
| finfo.i.dirEntNum = 0; |
| finfo.i.DosDirNum = 0; |
| #ifdef CONFIG_NCPFS_SMALLDOS |
| finfo.i.NSCreator = NW_NS_DOS; |
| #endif |
| finfo.volume = NCP_NUMBER_OF_VOLUMES; |
| /* 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.volume] = NW_NS_DOS; |
| |
| error = -ENOMEM; |
| root_inode = ncp_iget(sb, &finfo); |
| if (!root_inode) |
| goto out_disconnect; |
| DPRINTK("ncp_fill_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_root_dentry_operations; |
| return 0; |
| |
| out_no_root: |
| iput(root_inode); |
| out_disconnect: |
| ncp_lock_server(server); |
| ncp_disconnect(server); |
| ncp_unlock_server(server); |
| out_packet: |
| ncp_stop_tasks(server); |
| vfree(server->packet); |
| out_nls: |
| #ifdef CONFIG_NCPFS_NLS |
| unload_nls(server->nls_io); |
| unload_nls(server->nls_vol); |
| #endif |
| out_fput2: |
| if (server->info_filp) |
| fput(server->info_filp); |
| out_fput: |
| /* 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); |
| out: |
| put_pid(data.wdog_pid); |
| sb->s_fs_info = NULL; |
| kfree(server); |
| return error; |
| } |
| |
| 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); |
| |
| ncp_stop_tasks(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 */ |
| |
| if (server->info_filp) |
| fput(server->info_filp); |
| fput(server->ncp_filp); |
| kill_pid(server->m.wdog_pid, SIGTERM, 1); |
| put_pid(server->m.wdog_pid); |
| |
| kfree(server->priv.data); |
| kfree(server->auth.object_name); |
| vfree(server->packet); |
| sb->s_fs_info = NULL; |
| kfree(server); |
| } |
| |
| static int ncp_statfs(struct dentry *dentry, struct kstatfs *buf) |
| { |
| struct dentry* d; |
| struct inode* i; |
| struct ncp_inode_info* ni; |
| struct ncp_server* s; |
| struct ncp_volume_info vi; |
| struct super_block *sb = dentry->d_sb; |
| int err; |
| __u8 dh; |
| |
| d = sb->s_root; |
| if (!d) { |
| goto dflt; |
| } |
| i = d->d_inode; |
| if (!i) { |
| goto dflt; |
| } |
| ni = NCP_FINFO(i); |
| if (!ni) { |
| goto dflt; |
| } |
| s = NCP_SBP(sb); |
| if (!s) { |
| goto dflt; |
| } |
| if (!s->m.mounted_vol[0]) { |
| goto dflt; |
| } |
| |
| err = ncp_dirhandle_alloc(s, ni->volNumber, ni->DosDirNum, &dh); |
| if (err) { |
| goto dflt; |
| } |
| err = ncp_get_directory_info(s, dh, &vi); |
| ncp_dirhandle_free(s, dh); |
| if (err) { |
| goto dflt; |
| } |
| buf->f_type = NCP_SUPER_MAGIC; |
| buf->f_bsize = vi.sectors_per_block * 512; |
| buf->f_blocks = vi.total_blocks; |
| buf->f_bfree = vi.free_blocks; |
| buf->f_bavail = vi.free_blocks; |
| buf->f_files = vi.total_dir_entries; |
| buf->f_ffree = vi.available_dir_entries; |
| buf->f_namelen = 12; |
| return 0; |
| |
| /* 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. */ |
| |
| dflt:; |
| 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; |
| __le32 info_mask; |
| struct nw_modify_dos_info info; |
| struct ncp_server *server; |
| |
| result = -EIO; |
| |
| lock_kernel(); |
| |
| 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_IRWXUGO)))) |
| goto out; |
| |
| info_mask = 0; |
| memset(&info, 0, sizeof(info)); |
| |
| #if 1 |
| if ((attr->ia_valid & ATTR_MODE) != 0) |
| { |
| umode_t newmode = attr->ia_mode; |
| |
| info_mask |= DM_ATTRIBUTES; |
| |
| if (S_ISDIR(inode->i_mode)) { |
| newmode &= server->m.dir_mode; |
| } else { |
| #ifdef CONFIG_NCPFS_EXTRAS |
| if (server->m.flags & NCP_MOUNT_EXTRAS) { |
| /* any non-default execute bit set */ |
| if (newmode & ~server->m.file_mode & S_IXUGO) |
| info.attributes |= aSHARED | aSYSTEM; |
| /* read for group/world and not in default file_mode */ |
| else if (newmode & ~server->m.file_mode & S_IRUGO) |
| info.attributes |= aSHARED; |
| } else |
| #endif |
| newmode &= server->m.file_mode; |
| } |
| if (newmode & S_IWUGO) |
| info.attributes &= ~(aRONLY|aRENAMEINHIBIT|aDELETEINHIBIT); |
| else |
| info.attributes |= (aRONLY|aRENAMEINHIBIT|aDELETEINHIBIT); |
| |
| #ifdef CONFIG_NCPFS_NFS_NS |
| if (ncp_is_nfs_extras(server, NCP_FINFO(inode)->volNumber)) { |
| result = ncp_modify_nfs_info(server, |
| NCP_FINFO(inode)->volNumber, |
| NCP_FINFO(inode)->dirEntNum, |
| attr->ia_mode, 0); |
| if (result != 0) |
| goto out; |
| info.attributes &= ~(aSHARED | aSYSTEM); |
| { |
| /* mark partial success */ |
| struct iattr tmpattr; |
| |
| tmpattr.ia_valid = ATTR_MODE; |
| tmpattr.ia_mode = attr->ia_mode; |
| |
| result = inode_setattr(inode, &tmpattr); |
| if (result) |
| goto out; |
| } |
| } |
| #endif |
| } |
| #endif |
| |
| /* Do SIZE before attributes, otherwise mtime together with size does not work... |
| */ |
| 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) { |
| result = -EACCES; |
| goto out; |
| } |
| 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) |
| goto out; |
| { |
| struct iattr tmpattr; |
| |
| tmpattr.ia_valid = ATTR_SIZE; |
| tmpattr.ia_size = attr->ia_size; |
| |
| result = inode_setattr(inode, &tmpattr); |
| if (result) |
| goto out; |
| } |
| } |
| if ((attr->ia_valid & ATTR_CTIME) != 0) { |
| info_mask |= (DM_CREATE_TIME | DM_CREATE_DATE); |
| ncp_date_unix2dos(attr->ia_ctime.tv_sec, |
| &info.creationTime, &info.creationDate); |
| } |
| if ((attr->ia_valid & ATTR_MTIME) != 0) { |
| info_mask |= (DM_MODIFY_TIME | DM_MODIFY_DATE); |
| ncp_date_unix2dos(attr->ia_mtime.tv_sec, |
| &info.modifyTime, &info.modifyDate); |
| } |
| if ((attr->ia_valid & ATTR_ATIME) != 0) { |
| __le16 dummy; |
| info_mask |= (DM_LAST_ACCESS_DATE); |
| ncp_date_unix2dos(attr->ia_atime.tv_sec, |
| &dummy, &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; |
| } else |
| goto out; |
| } |
| #ifdef CONFIG_NCPFS_STRONG |
| if ((!result) && (info_mask & DM_ATTRIBUTES)) |
| NCP_FINFO(inode)->nwattr = info.attributes; |
| #endif |
| } |
| if (!result) |
| result = inode_setattr(inode, attr); |
| out: |
| unlock_kernel(); |
| return result; |
| } |
| |
| static int ncp_get_sb(struct file_system_type *fs_type, |
| int flags, const char *dev_name, void *data, struct vfsmount *mnt) |
| { |
| return get_sb_nodev(fs_type, flags, data, ncp_fill_super, mnt); |
| } |
| |
| static struct file_system_type ncp_fs_type = { |
| .owner = THIS_MODULE, |
| .name = "ncpfs", |
| .get_sb = ncp_get_sb, |
| .kill_sb = kill_anon_super, |
| }; |
| |
| static int __init init_ncp_fs(void) |
| { |
| int err; |
| DPRINTK("ncpfs: init_module called\n"); |
| |
| 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(); |
| } |
| |
| module_init(init_ncp_fs) |
| module_exit(exit_ncp_fs) |
| MODULE_LICENSE("GPL"); |