/*
* Function: sys_set_ea
*
* Purpose: set a native EA
*
* Arguments:
*
* vol (r) current volume
* uname (r) filename
* attruname (r) EA name
* ibuf (r) buffer with EA content
* attrsize (r) length EA in ibuf
* oflag (r) link and create flag
*
* Returns: AFP code: AFP_OK on success or appropiate AFP error code
*
* Effects:
*
*/
int sys_set_ea(VFS_FUNC_ARGS_EA_SET)
{
int attr_flag;
int ret;
attr_flag = 0;
if ((oflag & O_CREAT) )
attr_flag |= XATTR_CREATE;
else if ((oflag & O_TRUNC) )
attr_flag |= XATTR_REPLACE;
if ((oflag & O_NOFOLLOW) ) {
ret = sys_lsetxattr(uname, attruname, ibuf, attrsize,attr_flag);
}
else {
ret = sys_setxattr(uname, attruname, ibuf, attrsize, attr_flag);
}
if (ret == -1) {
switch(errno) {
case OPEN_NOFOLLOW_ERRNO:
/* its a symlink and client requested O_NOFOLLOW */
LOG(log_debug, logtype_afpd, "sys_set_ea(\"%s\", ea:'%s'): symlink with kXAttrNoFollow",
uname, attruname);
return AFP_OK;
case EEXIST:
LOG(log_debug, logtype_afpd, "sys_set_ea(\"%s/%s\", ea:'%s'): EA already exists",
getcwdpath(), uname, attruname);
return AFPERR_EXIST;
default:
LOG(log_error, logtype_afpd, "sys_set_ea(\"%s/%s\", ea:'%s', size: %u, flags: %s|%s|%s): %s",
getcwdpath(), uname, attruname, attrsize,
oflag & O_CREAT ? "XATTR_CREATE" : "-",
oflag & O_TRUNC ? "XATTR_REPLACE" : "-",
oflag & O_NOFOLLOW ? "O_NOFOLLOW" : "-",
strerror(errno));
return AFPERR_MISC;
}
}
return AFP_OK;
}
/*
* Function: sys_ea_copyfile
*
* Purpose: copy EAs
*
* Arguments:
*
* vol (r) current volume
* sdf (r) source file descriptor
* src (r) source path
* dst (r) destination path
*
* Return AFP code AFP_OK on success or appropriate AFP error code
*
* Effects:
*
* Copies EAs from source file to dest file.
*/
int sys_ea_copyfile(VFS_FUNC_ARGS_COPYFILE)
{
int ret = 0;
int cwd = -1;
ssize_t size;
char *names = NULL, *end_names, *name, *value = NULL;
unsigned int setxattr_ENOTSUP = 0;
if (sfd != -1) {
if ((cwd = open(".", O_RDONLY)) == -1) {
LOG(log_error, logtype_afpd, "sys_ea_copyfile: cant open cwd: %s",
strerror(errno));
ret = -1;
goto getout;
}
}
if (sfd != -1) {
if (fchdir(sfd) == -1) {
LOG(log_error, logtype_afpd, "sys_ea_copyfile: cant chdir to sfd: %s",
strerror(errno));
ret = -1;
goto getout;
}
}
size = sys_listxattr(src, NULL, 0);
if (size < 0) {
if (errno != ENOSYS && errno != ENOTSUP) {
ret = -1;
}
goto getout;
}
names = malloc(size+1);
if (names == NULL) {
ret = -1;
goto getout;
}
size = sys_listxattr(src, names, size);
if (size < 0) {
ret = -1;
goto getout;
} else {
names[size] = '\0';
end_names = names + size;
}
if (sfd != -1) {
if (fchdir(cwd) == -1) {
LOG(log_error, logtype_afpd, "sys_ea_copyfile: cant chdir to cwd: %s",
strerror(errno));
ret = -1;
goto getout;
}
}
for (name = names; name != end_names; name = strchr(name, '\0') + 1) {
void *old_value;
/* check if this attribute shall be preserved */
if (!*name)
continue;
if (STRCMP(name, ==, AD_EA_META))
continue;
if (sfd != -1) {
if (fchdir(sfd) == -1) {
LOG(log_error, logtype_afpd, "sys_ea_copyfile: cant chdir to sfd: %s",
strerror(errno));
ret = -1;
goto getout;
}
}
size = sys_getxattr (src, name, NULL, 0);
if (size < 0) {
ret = -1;
continue;
}
value = realloc(old_value = value, size);
if (size != 0 && value == NULL) {
free(old_value);
ret = -1;
}
size = sys_getxattr(src, name, value, size);
if (size < 0) {
ret = -1;
continue;
}
if (sfd != -1) {
if (fchdir(cwd) == -1) {
LOG(log_error, logtype_afpd, "sys_ea_copyfile: cant chdir to cwd: %s",
strerror(errno));
ret = -1;
goto getout;
}
}
if (sys_setxattr(dst, name, value, size, 0) != 0) {
if (errno == ENOTSUP)
setxattr_ENOTSUP++;
else {
if (errno == ENOSYS) {
ret = -1;
/* no hope of getting any further */
break;
} else {
ret = -1;
}
}
}
}
if (setxattr_ENOTSUP) {
errno = ENOTSUP;
ret = -1;
}
getout:
if (cwd != -1)
close(cwd);
free(value);
free(names);
if (ret == -1) {
switch(errno) {
case ENOENT:
/* no attribute */
break;
case EACCES:
LOG(log_debug, logtype_afpd, "sys_ea_copyfile(%s, %s): error: %s", src, dst, strerror(errno));
return AFPERR_ACCESS;
default:
LOG(log_error, logtype_afpd, "sys_ea_copyfile(%s, %s): error: %s", src, dst, strerror(errno));
return AFPERR_MISC;
}
}
return AFP_OK;
}
/*
* Function: sys_set_ea
*
* Purpose: set a native EA
*
* Arguments:
*
* vol (r) current volume
* uname (r) filename
* attruname (r) EA name
* ibuf (r) buffer with EA content
* attrsize (r) length EA in ibuf
* oflag (r) link and create flag
*
* Returns: AFP code: AFP_OK on success or appropiate AFP error code
*
* Effects:
*
*/
int sys_set_ea(VFS_FUNC_ARGS_EA_SET)
{
int attr_flag;
int ret;
char *eabuf;
/*
* Buffer for a copy of the xattr plus one byte in case
* AFPVOL_EA_SAMBA is used
*/
eabuf = malloc(attrsize + 1);
if (eabuf == NULL) {
return AFPERR_MISC;
}
memcpy(eabuf, ibuf, attrsize);
eabuf[attrsize] = 0;
attr_flag = 0;
if ((oflag & O_CREAT) )
attr_flag |= XATTR_CREATE;
else if ((oflag & O_TRUNC) )
attr_flag |= XATTR_REPLACE;
if (vol->v_flags & AFPVOL_EA_SAMBA) {
attrsize++;
}
/* PBaranski fix */
if ( fd != -1) {
LOG(log_debug, logtype_afpd, "sys_set_ea(%s): file is already opened", uname);
ret = sys_fsetxattr(fd, attruname, eabuf, attrsize, attr_flag);
} else {
if ((oflag & O_NOFOLLOW) ) {
ret = sys_lsetxattr(uname, attruname, eabuf, attrsize,attr_flag);
}
else {
ret = sys_setxattr(uname, attruname, eabuf, attrsize, attr_flag);
}
}
/* PBaranski fix */
if (ret == -1) {
switch(errno) {
case OPEN_NOFOLLOW_ERRNO:
/* its a symlink and client requested O_NOFOLLOW */
LOG(log_debug, logtype_afpd, "sys_set_ea(\"%s\", ea:'%s'): symlink with kXAttrNoFollow",
uname, attruname);
return AFP_OK;
case EEXIST:
LOG(log_debug, logtype_afpd, "sys_set_ea(\"%s/%s\", ea:'%s'): EA already exists",
getcwdpath(), uname, attruname);
return AFPERR_EXIST;
case ENOATTR:
case ENOENT:
if ((attr_flag & XATTR_REPLACE) && (vol->v_obj->afp_version >= 34))
return AFPERR_NOITEM;
return AFPERR_MISC;
default:
LOG(log_debug, logtype_afpd, "sys_set_ea(\"%s/%s\", ea:'%s', size: %u, flags: %s|%s|%s): %s",
getcwdpath(), uname, attruname, attrsize,
oflag & O_CREAT ? "XATTR_CREATE" : "-",
oflag & O_TRUNC ? "XATTR_REPLACE" : "-",
oflag & O_NOFOLLOW ? "O_NOFOLLOW" : "-",
strerror(errno));
return AFPERR_MISC;
}
}
return AFP_OK;
}
int vfswrap_setxattr(struct vfs_handle_struct *handle, struct connection_struct *conn,const char *path, const char *name, const void *value, size_t size, int flags)
{
return sys_setxattr(path, name, value, size, flags);
}
