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Added entries in security API to process user mappings and Win32 attribs

N2009_11_14_FIXES
jpandre 2008-08-03 07:19:20 +00:00
parent 1f64eafe7c
commit 219491bf27
1 changed files with 175 additions and 0 deletions
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175
libntfs-3g/security.c
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@ -5220,6 +5220,77 @@ int ntfs_set_file_security(struct SECURITY_API *scapi,
}
/*
* Return the attributes of a file
* This is intended to be similar to GetFileAttributes() from Win32
* in order to facilitate the development of portable tools
*
* returns -1 if unsuccessful (Win32 : INVALID_FILE_ATTRIBUTES)
*
* The Win32 API is :
*
* DWORD WINAPI GetFileAttributes(
* __in LPCTSTR lpFileName
* );
*/
int ntfs_get_file_attributes(struct SECURITY_API *scapi, const char *path)
{
ntfs_inode *ni;
s32 attrib;
attrib = -1; /* default return */
if (scapi && (scapi->magic == MAGIC_API) && path) {
ni = ntfs_pathname_to_inode(scapi->security.vol, NULL, path);
if (ni) {
attrib = ni->flags;
ntfs_inode_close(ni);
} else
errno = ENOENT;
} else
errno = EINVAL; /* do not clear *psize */
return (attrib);
}
/*
* Set attributes to a file or directory
* This is intended to be similar to SetFileAttributes() from Win32
* in order to facilitate the development of portable tools
*
* Only a few flags can be set (same list as Win32)
*
* returns zero if unsuccessful (following Win32 conventions)
* nonzero if successful
*
* The Win32 API is :
*
* BOOL WINAPI SetFileAttributes(
* __in LPCTSTR lpFileName,
* __in DWORD dwFileAttributes
* );
*/
BOOL ntfs_set_file_attributes(struct SECURITY_API *scapi,
const char *path, s32 attrib)
{
ntfs_inode *ni;
int res;
res = 0; /* default return */
if (scapi && (scapi->magic == MAGIC_API) && path) {
ni = ntfs_pathname_to_inode(scapi->security.vol, NULL, path);
if (ni) {
ni->flags = (ni->flags & ~0x31a7) | (attrib & 0x31a7);
NInoSetDirty(ni);
ntfs_inode_close(ni);
} else
errno = ENOENT;
}
return (res);
}
BOOL ntfs_read_directory(struct SECURITY_API *scapi,
const char *path, ntfs_filldir_t callback, void *context)
{
@ -5340,6 +5411,110 @@ INDEX_ENTRY *ntfs_read_sdh(struct SECURITY_API *scapi,
return (ret);
}
/*
* Get the mapped user SID
* A buffer of 40 bytes has to be supplied
*
* returns the size of the SID, or zero and errno set if not found
*/
int ntfs_get_usid(struct SECURITY_API *scapi, uid_t uid, char *buf)
{
const SID *usid;
BIGSID defusid;
int size;
size = 0;
if (scapi && (scapi->magic == MAGIC_API)) {
usid = find_usid(&scapi->security, uid, (SID*)&defusid);
if (usid) {
size = sid_size(usid);
memcpy(buf,usid,size);
} else
errno = ENODATA;
} else
errno = EINVAL;
return (size);
}
/*
* Get the mapped group SID
* A buffer of 40 bytes has to be supplied
*
* returns the size of the SID, or zero and errno set if not found
*/
int ntfs_get_gsid(struct SECURITY_API *scapi, gid_t gid, char *buf)
{
const SID *gsid;
BIGSID defgsid;
int size;
size = 0;
if (scapi && (scapi->magic == MAGIC_API)) {
gsid = find_gsid(&scapi->security, gid, (SID*)&defgsid);
if (gsid) {
size = sid_size(gsid);
memcpy(buf,gsid,size);
} else
errno = ENODATA;
} else
errno = EINVAL;
return (size);
}
/*
* Get the user mapped to a SID
*
* returns the uid, or -1 if not found
*/
int ntfs_get_user(struct SECURITY_API *scapi, const SID *usid)
{
int uid;
uid = -1;
if (scapi && (scapi->magic == MAGIC_API) && valid_sid(usid)) {
if (same_sid(usid,adminsid))
uid = 0;
else {
uid = findowner(&scapi->security, usid);
if (!uid) {
uid = -1;
errno = ENODATA;
}
}
} else
errno = EINVAL;
return (uid);
}
/*
* Get the group mapped to a SID
*
* returns the uid, or -1 if not found
*/
int ntfs_get_group(struct SECURITY_API *scapi, const SID *gsid)
{
int gid;
gid = -1;
if (scapi && (scapi->magic == MAGIC_API) && valid_sid(gsid)) {
if (same_sid(gsid,adminsid))
gid = 0;
else {
gid = findgroup(&scapi->security, gsid);
if (!gid) {
gid = -1;
errno = ENODATA;
}
}
} else
errno = EINVAL;
return (gid);
}
/*
* Initializations before calling ntfs_get_file_security()
* ntfs_set_file_security() and ntfs_read_directory()