f7613bee32
mapped model changes the owner in the extended attributes. passthrough model does the change through lchown() as the server don't need to follow the link and client will send the actual filesystem object. Signed-off-by: Venkateswararao Jujjuri <jvrao@linux.vnet.ibm.com> Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
81 lines
2.4 KiB
C
81 lines
2.4 KiB
C
/*
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* Virtio 9p
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*
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* Copyright IBM, Corp. 2010
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*
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* Authors:
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* Aneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com>
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*
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* This work is licensed under the terms of the GNU GPL, version 2. See
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* the COPYING file in the top-level directory.
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*
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*/
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#ifndef _FILEOP_H
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#define _FILEOP_H
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#include <sys/types.h>
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#include <dirent.h>
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#include <sys/time.h>
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#include <utime.h>
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#include <sys/stat.h>
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#include <sys/uio.h>
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#include <sys/vfs.h>
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#define SM_LOCAL_MODE_BITS 0600
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#define SM_LOCAL_DIR_MODE_BITS 0700
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typedef enum
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{
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SM_PASSTHROUGH = 1, /* uid/gid set on fileserver files */
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SM_MAPPED, /* uid/gid part of xattr */
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} SecModel;
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typedef struct FsCred
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{
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uid_t fc_uid;
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gid_t fc_gid;
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mode_t fc_mode;
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dev_t fc_rdev;
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} FsCred;
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typedef struct FsContext
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{
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char *fs_root;
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SecModel fs_sm;
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uid_t uid;
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} FsContext;
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extern void cred_init(FsCred *);
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typedef struct FileOperations
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{
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int (*lstat)(FsContext *, const char *, struct stat *);
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ssize_t (*readlink)(FsContext *, const char *, char *, size_t);
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int (*chmod)(FsContext *, const char *, FsCred *);
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int (*chown)(FsContext *, const char *, FsCred *);
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int (*mknod)(FsContext *, const char *, mode_t, dev_t);
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int (*mksock)(FsContext *, const char *);
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int (*utime)(FsContext *, const char *, const struct utimbuf *);
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int (*remove)(FsContext *, const char *);
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int (*symlink)(FsContext *, const char *, const char *);
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int (*link)(FsContext *, const char *, const char *);
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int (*setuid)(FsContext *, uid_t);
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int (*close)(FsContext *, int);
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int (*closedir)(FsContext *, DIR *);
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DIR *(*opendir)(FsContext *, const char *);
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int (*open)(FsContext *, const char *, int);
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int (*open2)(FsContext *, const char *, int, mode_t);
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void (*rewinddir)(FsContext *, DIR *);
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off_t (*telldir)(FsContext *, DIR *);
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struct dirent *(*readdir)(FsContext *, DIR *);
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void (*seekdir)(FsContext *, DIR *, off_t);
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ssize_t (*readv)(FsContext *, int, const struct iovec *, int);
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ssize_t (*writev)(FsContext *, int, const struct iovec *, int);
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off_t (*lseek)(FsContext *, int, off_t, int);
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int (*mkdir)(FsContext *, const char *, mode_t);
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int (*fstat)(FsContext *, int, struct stat *);
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int (*rename)(FsContext *, const char *, const char *);
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int (*truncate)(FsContext *, const char *, off_t);
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int (*fsync)(FsContext *, int);
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void *opaque;
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} FileOperations;
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#endif
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