/* Valid blkverify filenames look like blkverify:path/to/raw_image:path/to/image */
static void blkverify_parse_filename(const char *filename, QDict *options,
Error **errp)
{
const char *c;
QString *raw_path;
/* Parse the blkverify: prefix */
if (!strstart(filename, "blkverify:", &filename)) {
/* There was no prefix; therefore, all options have to be already
present in the QDict (except for the filename) */
qdict_put(options, "x-image", qstring_from_str(filename));
return;
}
/* Parse the raw image filename */
c = strchr(filename, ':');
if (c == NULL) {
error_setg(errp, "blkverify requires raw copy and original image path");
return;
}
/* TODO Implement option pass-through and set raw.filename here */
raw_path = qstring_from_substr(filename, 0, c - filename - 1);
qdict_put(options, "x-raw", raw_path);
/* TODO Allow multi-level nesting and set file.filename here */
filename = c + 1;
qdict_put(options, "x-image", qstring_from_str(filename));
}
static const char *append_field(QDict *error, QString *outstr,
const QErrorStringTable *entry,
const char *start)
{
QObject *obj;
QDict *qdict;
QString *key_qs;
const char *end, *key;
if (*start != '%')
parse_error(entry, '%');
start++;
if (*start != '(')
parse_error(entry, '(');
start++;
end = strchr(start, ')');
if (!end)
parse_error(entry, ')');
key_qs = qstring_from_substr(start, 0, end - start - 1);
key = qstring_get_str(key_qs);
qdict = qobject_to_qdict(qdict_get(error, "data"));
obj = qdict_get(qdict, key);
if (!obj) {
abort();
}
switch (qobject_type(obj)) {
case QTYPE_QSTRING:
qstring_append(outstr, qdict_get_str(qdict, key));
break;
case QTYPE_QINT:
qstring_append_int(outstr, qdict_get_int(qdict, key));
break;
default:
abort();
}
QDECREF(key_qs);
return ++end;
}
static const char *append_field(QString *outstr, const QError *qerror,
const char *start)
{
QObject *obj;
QDict *qdict;
QString *key_qs;
const char *end, *key;
if (*start != '%')
parse_error(qerror, '%');
start++;
if (*start != '(')
parse_error(qerror, '(');
start++;
end = strchr(start, ')');
if (!end)
parse_error(qerror, ')');
key_qs = qstring_from_substr(start, 0, end - start - 1);
key = qstring_get_str(key_qs);
qdict = qobject_to_qdict(qdict_get(qerror->error, "data"));
obj = qdict_get(qdict, key);
if (!obj) {
qerror_abort(qerror, "key '%s' not found in QDict", key);
}
switch (qobject_type(obj)) {
case QTYPE_QSTRING:
qstring_append(outstr, qdict_get_str(qdict, key));
break;
case QTYPE_QINT:
qstring_append_int(outstr, qdict_get_int(qdict, key));
break;
default:
qerror_abort(qerror, "invalid type '%c'", qobject_type(obj));
}
QDECREF(key_qs);
return ++end;
}
static void qobject_is_equal_string_test(void)
{
QString *str_base, *str_whitespace_0, *str_whitespace_1, *str_whitespace_2;
QString *str_whitespace_3, *str_case, *str_built;
str_base = qstring_from_str("foo");
str_whitespace_0 = qstring_from_str(" foo");
str_whitespace_1 = qstring_from_str("foo ");
str_whitespace_2 = qstring_from_str("foo\b");
str_whitespace_3 = qstring_from_str("fooo\b");
str_case = qstring_from_str("Foo");
/* Should yield "foo" */
str_built = qstring_from_substr("form", 0, 1);
qstring_append_chr(str_built, 'o');
check_unequal(str_base, str_whitespace_0, str_whitespace_1,
str_whitespace_2, str_whitespace_3, str_case);
check_equal(str_base, str_built);
free_all(str_base, str_whitespace_0, str_whitespace_1, str_whitespace_2,
str_whitespace_3, str_case, str_built);
}
static int nbd_parse_uri(const char *filename, QDict *options)
{
URI *uri;
const char *p;
QueryParams *qp = NULL;
int ret = 0;
bool is_unix;
uri = uri_parse(filename);
if (!uri) {
return -EINVAL;
}
/* transport */
if (!strcmp(uri->scheme, "nbd")) {
is_unix = false;
} else if (!strcmp(uri->scheme, "nbd+tcp")) {
is_unix = false;
} else if (!strcmp(uri->scheme, "nbd+unix")) {
is_unix = true;
} else {
ret = -EINVAL;
goto out;
}
p = uri->path ? uri->path : "/";
p += strspn(p, "/");
if (p[0]) {
qdict_put(options, "export", qstring_from_str(p));
}
qp = query_params_parse(uri->query);
if (qp->n > 1 || (is_unix && !qp->n) || (!is_unix && qp->n)) {
ret = -EINVAL;
goto out;
}
if (is_unix) {
/* nbd+unix:///export?socket=path */
if (uri->server || uri->port || strcmp(qp->p[0].name, "socket")) {
ret = -EINVAL;
goto out;
}
qdict_put(options, "path", qstring_from_str(qp->p[0].value));
} else {
QString *host;
/* nbd[+tcp]://host[:port]/export */
if (!uri->server) {
ret = -EINVAL;
goto out;
}
/* strip braces from literal IPv6 address */
if (uri->server[0] == '[') {
host = qstring_from_substr(uri->server, 1,
strlen(uri->server) - 2);
} else {
host = qstring_from_str(uri->server);
}
qdict_put(options, "host", host);
if (uri->port) {
char* port_str = g_strdup_printf("%d", uri->port);
qdict_put(options, "port", qstring_from_str(port_str));
g_free(port_str);
}
}
out:
if (qp) {
query_params_free(qp);
}
uri_free(uri);
return ret;
}
/**
* qstring_from_str(): Create a new QString from a regular C string
*
* Return strong reference.
*/
QString *qstring_from_str(const char *str)
{
return qstring_from_substr(str, 0, strlen(str) - 1);
}
