1 /* 2 * Copyright (C) 1995-1997 Olaf Kirch <okir@monad.swb.de> 3 */ 4 5 #ifndef LINUX_NFSD_VFS_H 6 #define LINUX_NFSD_VFS_H 7 8 #include "nfsfh.h" 9 10 /* 11 * Flags for nfsd_permission 12 */ 13 #define NFSD_MAY_NOP 0 14 #define NFSD_MAY_EXEC 0x001 /* == MAY_EXEC */ 15 #define NFSD_MAY_WRITE 0x002 /* == MAY_WRITE */ 16 #define NFSD_MAY_READ 0x004 /* == MAY_READ */ 17 #define NFSD_MAY_SATTR 0x008 18 #define NFSD_MAY_TRUNC 0x010 19 #define NFSD_MAY_LOCK 0x020 20 #define NFSD_MAY_MASK 0x03f 21 22 /* extra hints to permission and open routines: */ 23 #define NFSD_MAY_OWNER_OVERRIDE 0x040 24 #define NFSD_MAY_LOCAL_ACCESS 0x080 /* for device special files */ 25 #define NFSD_MAY_BYPASS_GSS_ON_ROOT 0x100 26 #define NFSD_MAY_NOT_BREAK_LEASE 0x200 27 #define NFSD_MAY_BYPASS_GSS 0x400 28 #define NFSD_MAY_READ_IF_EXEC 0x800 29 30 #define NFSD_MAY_CREATE (NFSD_MAY_EXEC|NFSD_MAY_WRITE) 31 #define NFSD_MAY_REMOVE (NFSD_MAY_EXEC|NFSD_MAY_WRITE|NFSD_MAY_TRUNC) 32 33 /* 34 * Callback function for readdir 35 */ 36 typedef int (*nfsd_dirop_t)(struct inode *, struct dentry *, int, int); 37 38 /* nfsd/vfs.c */ 39 int fh_lock_parent(struct svc_fh *, struct dentry *); 40 int nfsd_racache_init(int); 41 void nfsd_racache_shutdown(void); 42 int nfsd_cross_mnt(struct svc_rqst *rqstp, struct dentry **dpp, 43 struct svc_export **expp); 44 __be32 nfsd_lookup(struct svc_rqst *, struct svc_fh *, 45 const char *, unsigned int, struct svc_fh *); 46 __be32 nfsd_lookup_dentry(struct svc_rqst *, struct svc_fh *, 47 const char *, unsigned int, 48 struct svc_export **, struct dentry **); 49 __be32 nfsd_setattr(struct svc_rqst *, struct svc_fh *, 50 struct iattr *, int, time_t); 51 int nfsd_mountpoint(struct dentry *, struct svc_export *); 52 #ifdef CONFIG_NFSD_V4 53 __be32 nfsd4_set_nfs4_acl(struct svc_rqst *, struct svc_fh *, 54 struct nfs4_acl *); 55 int nfsd4_get_nfs4_acl(struct svc_rqst *, struct dentry *, struct nfs4_acl **); 56 #endif /* CONFIG_NFSD_V4 */ 57 __be32 nfsd_create(struct svc_rqst *, struct svc_fh *, 58 char *name, int len, struct iattr *attrs, 59 int type, dev_t rdev, struct svc_fh *res); 60 #ifdef CONFIG_NFSD_V3 61 __be32 nfsd_access(struct svc_rqst *, struct svc_fh *, u32 *, u32 *); 62 __be32 do_nfsd_create(struct svc_rqst *, struct svc_fh *, 63 char *name, int len, struct iattr *attrs, 64 struct svc_fh *res, int createmode, 65 u32 *verifier, bool *truncp, bool *created); 66 __be32 nfsd_commit(struct svc_rqst *, struct svc_fh *, 67 loff_t, unsigned long); 68 #endif /* CONFIG_NFSD_V3 */ 69 __be32 nfsd_open(struct svc_rqst *, struct svc_fh *, umode_t, 70 int, struct file **); 71 void nfsd_close(struct file *); 72 __be32 nfsd_read(struct svc_rqst *, struct svc_fh *, 73 loff_t, struct kvec *, int, unsigned long *); 74 __be32 nfsd_read_file(struct svc_rqst *, struct svc_fh *, struct file *, 75 loff_t, struct kvec *, int, unsigned long *); 76 __be32 nfsd_write(struct svc_rqst *, struct svc_fh *,struct file *, 77 loff_t, struct kvec *,int, unsigned long *, int *); 78 __be32 nfsd_readlink(struct svc_rqst *, struct svc_fh *, 79 char *, int *); 80 __be32 nfsd_symlink(struct svc_rqst *, struct svc_fh *, 81 char *name, int len, char *path, int plen, 82 struct svc_fh *res, struct iattr *); 83 __be32 nfsd_link(struct svc_rqst *, struct svc_fh *, 84 char *, int, struct svc_fh *); 85 __be32 nfsd_rename(struct svc_rqst *, 86 struct svc_fh *, char *, int, 87 struct svc_fh *, char *, int); 88 __be32 nfsd_remove(struct svc_rqst *, 89 struct svc_fh *, char *, int); 90 __be32 nfsd_unlink(struct svc_rqst *, struct svc_fh *, int type, 91 char *name, int len); 92 int nfsd_truncate(struct svc_rqst *, struct svc_fh *, 93 unsigned long size); 94 __be32 nfsd_readdir(struct svc_rqst *, struct svc_fh *, 95 loff_t *, struct readdir_cd *, filldir_t); 96 __be32 nfsd_statfs(struct svc_rqst *, struct svc_fh *, 97 struct kstatfs *, int access); 98 99 int nfsd_notify_change(struct inode *, struct iattr *); 100 __be32 nfsd_permission(struct svc_rqst *, struct svc_export *, 101 struct dentry *, int); 102 int nfsd_sync_dir(struct dentry *dp); 103 104 #if defined(CONFIG_NFSD_V2_ACL) || defined(CONFIG_NFSD_V3_ACL) 105 struct posix_acl *nfsd_get_posix_acl(struct svc_fh *, int); 106 int nfsd_set_posix_acl(struct svc_fh *, int, struct posix_acl *); 107 #endif 108 109 static inline int fh_want_write(struct svc_fh *fh) 110 { 111 return mnt_want_write(fh->fh_export->ex_path.mnt); 112 } 113 114 static inline void fh_drop_write(struct svc_fh *fh) 115 { 116 mnt_drop_write(fh->fh_export->ex_path.mnt); 117 } 118 119 #endif /* LINUX_NFSD_VFS_H */ 120