int
cifs_acl_to_fattr(struct cifs_sb_info *cifs_sb, struct cifs_fattr *fattr,
struct inode *inode, const char *path, const __u16 *pfid)
{
struct cifs_ntsd *pntsd = NULL;
u32 acllen = 0;
int rc = 0;
cFYI(DBG2, "converting ACL to mode for %s", path);
if (pfid)
pntsd = get_cifs_acl_by_fid(cifs_sb, *pfid, &acllen);
else
pntsd = get_cifs_acl(cifs_sb, inode, path, &acllen);
if (IS_ERR(pntsd)) {
rc = PTR_ERR(pntsd);
cERROR(1, "%s: error %d getting sec desc", __func__, rc);
} else {
rc = parse_sec_desc(cifs_sb, pntsd, acllen, fattr);
kfree(pntsd);
if (rc)
cERROR(1, "parse sec desc failed rc = %d", rc);
}
return rc;
}
/* Translate the CIFS ACL (simlar to NTFS ACL) for a file into mode bits */
void acl_to_uid_mode(struct inode *inode, const char *path, const __u16 *pfid)
{
struct cifs_ntsd *pntsd = NULL;
u32 acllen = 0;
int rc = 0;
cFYI(DBG2, ("converting ACL to mode for %s", path));
pntsd = get_cifs_acl(&acllen, inode, path, pfid);
/* if we can retrieve the ACL, now parse Access Control Entries, ACEs */
if (pntsd)
rc = parse_sec_desc(pntsd, acllen, inode);
if (rc)
cFYI(1, ("parse sec desc failed rc = %d", rc));
kfree(pntsd);
return;
}
/* Translate the CIFS ACL (simlar to NTFS ACL) for a file into mode bits */
int
cifs_acl_to_fattr(struct cifs_sb_info *cifs_sb, struct cifs_fattr *fattr,
struct inode *inode, const char *path,
const struct cifs_fid *pfid)
{
struct cifs_ntsd *pntsd = NULL;
u32 acllen = 0;
int rc = 0;
struct tcon_link *tlink = cifs_sb_tlink(cifs_sb);
struct cifs_tcon *tcon;
cifs_dbg(NOISY, "converting ACL to mode for %s\n", path);
if (IS_ERR(tlink))
return PTR_ERR(tlink);
tcon = tlink_tcon(tlink);
if (pfid && (tcon->ses->server->ops->get_acl_by_fid))
pntsd = tcon->ses->server->ops->get_acl_by_fid(cifs_sb, pfid,
&acllen);
else if (tcon->ses->server->ops->get_acl)
pntsd = tcon->ses->server->ops->get_acl(cifs_sb, inode, path,
&acllen);
else {
cifs_put_tlink(tlink);
return -EOPNOTSUPP;
}
/* if we can retrieve the ACL, now parse Access Control Entries, ACEs */
if (IS_ERR(pntsd)) {
rc = PTR_ERR(pntsd);
cifs_dbg(VFS, "%s: error %d getting sec desc\n", __func__, rc);
} else {
rc = parse_sec_desc(cifs_sb, pntsd, acllen, fattr);
kfree(pntsd);
if (rc)
cifs_dbg(VFS, "parse sec desc failed rc = %d\n", rc);
}
cifs_put_tlink(tlink);
return rc;
}
/* Translate the CIFS ACL (simlar to NTFS ACL) for a file into mode bits */
void
cifs_acl_to_fattr(struct cifs_sb_info *cifs_sb, struct cifs_fattr *fattr,
struct inode *inode, const char *path, const __u16 *pfid)
{
struct cifs_ntsd *pntsd = NULL;
u32 acllen = 0;
int rc = 0;
cFYI(DBG2, "converting ACL to mode for %s", path);
if (pfid)
pntsd = get_cifs_acl_by_fid(cifs_sb, *pfid, &acllen);
else
pntsd = get_cifs_acl(cifs_sb, inode, path, &acllen);
/* if we can retrieve the ACL, now parse Access Control Entries, ACEs */
if (pntsd)
rc = parse_sec_desc(pntsd, acllen, fattr);
if (rc)
cFYI(1, "parse sec desc failed rc = %d", rc);
kfree(pntsd);
return;
}
int
main(const int argc, char *const argv[])
{
int c, raw = 0;
ssize_t attrlen;
size_t bufsize = BUFSIZE;
char *filename, *attrval;
openlog(prog, 0, LOG_DAEMON);
while ((c = getopt_long(argc, argv, "r:v", NULL, NULL)) != -1) {
switch (c) {
case 'v':
printf("Version: %s\n", VERSION);
goto out;
case 'r':
raw = 1;
break;
default:
break;
}
}
if (raw && argc == 3)
filename = argv[2];
else if (argc == 2)
filename = argv[1];
else {
getcifsacl_usage();
return 0;
}
cifsacl:
if (bufsize >= XATTR_SIZE_MAX) {
printf("buffer to allocate exceeds max size of %d\n",
XATTR_SIZE_MAX);
return -1;
}
attrval = malloc(bufsize * sizeof(char));
if (!attrval) {
printf("error allocating memory for attribute value buffer\n");
return -1;
}
attrlen = getxattr(filename, ATTRNAME, attrval, bufsize);
if (attrlen == -1) {
if (errno == ERANGE) {
free(attrval);
bufsize += BUFSIZE;
goto cifsacl;
} else
printf("getxattr error: %d\n", errno);
}
parse_sec_desc((struct cifs_ntsd *)attrval, attrlen, raw);
free(attrval);
out:
return 0;
}
