1353ac78dSAneesh Kumar K.V /* 2353ac78dSAneesh Kumar K.V * Virtio 9p 3353ac78dSAneesh Kumar K.V * 4353ac78dSAneesh Kumar K.V * Copyright IBM, Corp. 2010 5353ac78dSAneesh Kumar K.V * 6353ac78dSAneesh Kumar K.V * Authors: 7353ac78dSAneesh Kumar K.V * Aneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com> 8353ac78dSAneesh Kumar K.V * 9353ac78dSAneesh Kumar K.V * This work is licensed under the terms of the GNU GPL, version 2. See 10353ac78dSAneesh Kumar K.V * the COPYING file in the top-level directory. 11353ac78dSAneesh Kumar K.V * 12353ac78dSAneesh Kumar K.V */ 13353ac78dSAneesh Kumar K.V #ifndef _FILEOP_H 14353ac78dSAneesh Kumar K.V #define _FILEOP_H 15353ac78dSAneesh Kumar K.V #include <sys/types.h> 16353ac78dSAneesh Kumar K.V #include <dirent.h> 17353ac78dSAneesh Kumar K.V #include <sys/time.h> 18353ac78dSAneesh Kumar K.V #include <utime.h> 19353ac78dSAneesh Kumar K.V #include <sys/stat.h> 20353ac78dSAneesh Kumar K.V #include <sys/uio.h> 21353ac78dSAneesh Kumar K.V #include <sys/vfs.h> 22353ac78dSAneesh Kumar K.V #define SM_LOCAL_MODE_BITS 0600 23353ac78dSAneesh Kumar K.V #define SM_LOCAL_DIR_MODE_BITS 0700 24353ac78dSAneesh Kumar K.V 25353ac78dSAneesh Kumar K.V typedef enum 26353ac78dSAneesh Kumar K.V { 27353ac78dSAneesh Kumar K.V /* 28353ac78dSAneesh Kumar K.V * Server will try to set uid/gid. 29353ac78dSAneesh Kumar K.V * On failure ignore the error. 30353ac78dSAneesh Kumar K.V */ 31353ac78dSAneesh Kumar K.V SM_NONE = 0, 32353ac78dSAneesh Kumar K.V /* 33353ac78dSAneesh Kumar K.V * uid/gid set on fileserver files 34353ac78dSAneesh Kumar K.V */ 35353ac78dSAneesh Kumar K.V SM_PASSTHROUGH = 1, 36353ac78dSAneesh Kumar K.V /* 37353ac78dSAneesh Kumar K.V * uid/gid part of xattr 38353ac78dSAneesh Kumar K.V */ 39353ac78dSAneesh Kumar K.V SM_MAPPED, 40353ac78dSAneesh Kumar K.V } SecModel; 41353ac78dSAneesh Kumar K.V 42353ac78dSAneesh Kumar K.V typedef struct FsCred 43353ac78dSAneesh Kumar K.V { 44353ac78dSAneesh Kumar K.V uid_t fc_uid; 45353ac78dSAneesh Kumar K.V gid_t fc_gid; 46353ac78dSAneesh Kumar K.V mode_t fc_mode; 47353ac78dSAneesh Kumar K.V dev_t fc_rdev; 48353ac78dSAneesh Kumar K.V } FsCred; 49353ac78dSAneesh Kumar K.V 50353ac78dSAneesh Kumar K.V struct xattr_operations; 51353ac78dSAneesh Kumar K.V 52353ac78dSAneesh Kumar K.V typedef struct FsContext 53353ac78dSAneesh Kumar K.V { 54353ac78dSAneesh Kumar K.V char *fs_root; 55353ac78dSAneesh Kumar K.V SecModel fs_sm; 56353ac78dSAneesh Kumar K.V uid_t uid; 57353ac78dSAneesh Kumar K.V struct xattr_operations **xops; 58353ac78dSAneesh Kumar K.V } FsContext; 59353ac78dSAneesh Kumar K.V 60353ac78dSAneesh Kumar K.V void cred_init(FsCred *); 61353ac78dSAneesh Kumar K.V 62353ac78dSAneesh Kumar K.V typedef struct FileOperations 63353ac78dSAneesh Kumar K.V { 64353ac78dSAneesh Kumar K.V int (*lstat)(FsContext *, const char *, struct stat *); 65353ac78dSAneesh Kumar K.V ssize_t (*readlink)(FsContext *, const char *, char *, size_t); 66353ac78dSAneesh Kumar K.V int (*chmod)(FsContext *, const char *, FsCred *); 67353ac78dSAneesh Kumar K.V int (*chown)(FsContext *, const char *, FsCred *); 68353ac78dSAneesh Kumar K.V int (*mknod)(FsContext *, const char *, FsCred *); 69353ac78dSAneesh Kumar K.V int (*utimensat)(FsContext *, const char *, const struct timespec *); 70353ac78dSAneesh Kumar K.V int (*remove)(FsContext *, const char *); 71353ac78dSAneesh Kumar K.V int (*symlink)(FsContext *, const char *, const char *, FsCred *); 72353ac78dSAneesh Kumar K.V int (*link)(FsContext *, const char *, const char *); 73353ac78dSAneesh Kumar K.V int (*setuid)(FsContext *, uid_t); 74353ac78dSAneesh Kumar K.V int (*close)(FsContext *, int); 75353ac78dSAneesh Kumar K.V int (*closedir)(FsContext *, DIR *); 76353ac78dSAneesh Kumar K.V DIR *(*opendir)(FsContext *, const char *); 77353ac78dSAneesh Kumar K.V int (*open)(FsContext *, const char *, int); 78353ac78dSAneesh Kumar K.V int (*open2)(FsContext *, const char *, int, FsCred *); 79353ac78dSAneesh Kumar K.V void (*rewinddir)(FsContext *, DIR *); 80353ac78dSAneesh Kumar K.V off_t (*telldir)(FsContext *, DIR *); 81*5f524c1eSHarsh Prateek Bora int (*readdir_r)(FsContext *, DIR *, struct dirent *, struct dirent **); 82353ac78dSAneesh Kumar K.V void (*seekdir)(FsContext *, DIR *, off_t); 83353ac78dSAneesh Kumar K.V ssize_t (*preadv)(FsContext *, int, const struct iovec *, int, off_t); 84353ac78dSAneesh Kumar K.V ssize_t (*pwritev)(FsContext *, int, const struct iovec *, int, off_t); 85353ac78dSAneesh Kumar K.V int (*mkdir)(FsContext *, const char *, FsCred *); 86353ac78dSAneesh Kumar K.V int (*fstat)(FsContext *, int, struct stat *); 87353ac78dSAneesh Kumar K.V int (*rename)(FsContext *, const char *, const char *); 88353ac78dSAneesh Kumar K.V int (*truncate)(FsContext *, const char *, off_t); 89353ac78dSAneesh Kumar K.V int (*fsync)(FsContext *, int, int); 90353ac78dSAneesh Kumar K.V int (*statfs)(FsContext *s, const char *path, struct statfs *stbuf); 91353ac78dSAneesh Kumar K.V ssize_t (*lgetxattr)(FsContext *, const char *, 92353ac78dSAneesh Kumar K.V const char *, void *, size_t); 93353ac78dSAneesh Kumar K.V ssize_t (*llistxattr)(FsContext *, const char *, void *, size_t); 94353ac78dSAneesh Kumar K.V int (*lsetxattr)(FsContext *, const char *, 95353ac78dSAneesh Kumar K.V const char *, void *, size_t, int); 96353ac78dSAneesh Kumar K.V int (*lremovexattr)(FsContext *, const char *, const char *); 97353ac78dSAneesh Kumar K.V void *opaque; 98353ac78dSAneesh Kumar K.V } FileOperations; 99353ac78dSAneesh Kumar K.V 100353ac78dSAneesh Kumar K.V #endif 101