2014-08-13 19:20:17 +02:00
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/*
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* QAPI util functions
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*
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* Authors:
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* Hu Tao <hutao@cn.fujitsu.com>
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* Peter Lieven <pl@kamp.de>
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*
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* This work is licensed under the terms of the GNU LGPL, version 2.1 or later.
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* See the COPYING.LIB file in the top-level directory.
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*
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*/
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2016-01-29 18:49:57 +01:00
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#include "qemu/osdep.h"
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2021-10-28 12:25:19 +02:00
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#include "qapi/compat-policy.h"
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include/qemu/osdep.h: Don't include qapi/error.h
Commit 57cb38b included qapi/error.h into qemu/osdep.h to get the
Error typedef. Since then, we've moved to include qemu/osdep.h
everywhere. Its file comment explains: "To avoid getting into
possible circular include dependencies, this file should not include
any other QEMU headers, with the exceptions of config-host.h,
compiler.h, os-posix.h and os-win32.h, all of which are doing a
similar job to this file and are under similar constraints."
qapi/error.h doesn't do a similar job, and it doesn't adhere to
similar constraints: it includes qapi-types.h. That's in excess of
100KiB of crap most .c files don't actually need.
Add the typedef to qemu/typedefs.h, and include that instead of
qapi/error.h. Include qapi/error.h in .c files that need it and don't
get it now. Include qapi-types.h in qom/object.h for uint16List.
Update scripts/clean-includes accordingly. Update it further to match
reality: replace config.h by config-target.h, add sysemu/os-posix.h,
sysemu/os-win32.h. Update the list of includes in the qemu/osdep.h
comment quoted above similarly.
This reduces the number of objects depending on qapi/error.h from "all
of them" to less than a third. Unfortunately, the number depending on
qapi-types.h shrinks only a little. More work is needed for that one.
Signed-off-by: Markus Armbruster <armbru@redhat.com>
[Fix compilation without the spice devel packages. - Paolo]
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2016-03-14 09:01:28 +01:00
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#include "qapi/error.h"
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2019-05-23 16:35:06 +02:00
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#include "qemu/ctype.h"
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2020-11-03 17:13:39 +01:00
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#include "qapi/qmp/qerror.h"
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2017-08-24 10:46:07 +02:00
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2021-10-28 12:25:19 +02:00
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CompatPolicy compat_policy;
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static bool compat_policy_input_ok1(const char *adjective,
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CompatPolicyInput policy,
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ErrorClass error_class,
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const char *kind, const char *name,
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Error **errp)
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{
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switch (policy) {
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case COMPAT_POLICY_INPUT_ACCEPT:
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return true;
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case COMPAT_POLICY_INPUT_REJECT:
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error_set(errp, error_class, "%s %s %s disabled by policy",
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adjective, kind, name);
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return false;
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case COMPAT_POLICY_INPUT_CRASH:
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default:
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abort();
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}
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}
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bool compat_policy_input_ok(unsigned special_features,
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const CompatPolicy *policy,
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ErrorClass error_class,
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const char *kind, const char *name,
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Error **errp)
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{
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if ((special_features & 1u << QAPI_DEPRECATED)
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&& !compat_policy_input_ok1("Deprecated",
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policy->deprecated_input,
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error_class, kind, name, errp)) {
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return false;
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}
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2021-10-28 12:25:20 +02:00
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if ((special_features & (1u << QAPI_UNSTABLE))
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&& !compat_policy_input_ok1("Unstable",
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policy->unstable_input,
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error_class, kind, name, errp)) {
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return false;
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}
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2021-10-28 12:25:19 +02:00
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return true;
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}
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2017-08-24 10:46:10 +02:00
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const char *qapi_enum_lookup(const QEnumLookup *lookup, int val)
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2017-08-24 10:46:07 +02:00
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{
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2017-08-24 10:46:10 +02:00
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assert(val >= 0 && val < lookup->size);
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2017-08-24 10:46:07 +02:00
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2017-08-24 10:46:10 +02:00
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return lookup->array[val];
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2017-08-24 10:46:07 +02:00
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}
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2014-08-13 19:20:17 +02:00
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2017-08-24 10:46:10 +02:00
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int qapi_enum_parse(const QEnumLookup *lookup, const char *buf,
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2017-08-24 10:45:57 +02:00
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int def, Error **errp)
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2014-08-13 19:20:17 +02:00
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{
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int i;
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if (!buf) {
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return def;
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}
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2017-08-24 10:46:10 +02:00
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for (i = 0; i < lookup->size; i++) {
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if (!strcmp(buf, lookup->array[i])) {
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2014-08-13 19:20:17 +02:00
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return i;
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}
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}
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error_setg(errp, "invalid parameter value: %s", buf);
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return def;
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}
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2017-02-28 22:27:04 +01:00
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2020-11-03 17:13:39 +01:00
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bool qapi_bool_parse(const char *name, const char *value, bool *obj, Error **errp)
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{
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if (g_str_equal(value, "on") ||
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g_str_equal(value, "yes") ||
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g_str_equal(value, "true") ||
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g_str_equal(value, "y")) {
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*obj = true;
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return true;
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}
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if (g_str_equal(value, "off") ||
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g_str_equal(value, "no") ||
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g_str_equal(value, "false") ||
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g_str_equal(value, "n")) {
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*obj = false;
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return true;
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}
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error_setg(errp, QERR_INVALID_PARAMETER_VALUE, name,
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"'on' or 'off'");
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return false;
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}
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2017-02-28 22:27:04 +01:00
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/*
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* Parse a valid QAPI name from @str.
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* A valid name consists of letters, digits, hyphen and underscore.
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* It may be prefixed by __RFQDN_ (downstream extension), where RFQDN
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* may contain only letters, digits, hyphen and period.
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* The special exception for enumeration names is not implemented.
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2017-07-29 00:46:03 +02:00
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* See docs/devel/qapi-code-gen.txt for more on QAPI naming rules.
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2022-02-18 15:55:51 +01:00
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* Keep this consistent with scripts/qapi-gen.py!
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2017-02-28 22:27:04 +01:00
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* If @complete, the parse fails unless it consumes @str completely.
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* Return its length on success, -1 on failure.
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*/
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int parse_qapi_name(const char *str, bool complete)
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{
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const char *p = str;
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if (*p == '_') { /* Downstream __RFQDN_ */
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p++;
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if (*p != '_') {
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return -1;
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}
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while (*++p) {
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if (!qemu_isalnum(*p) && *p != '-' && *p != '.') {
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break;
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}
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}
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if (*p != '_') {
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return -1;
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}
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p++;
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}
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if (!qemu_isalpha(*p)) {
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return -1;
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}
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while (*++p) {
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if (!qemu_isalnum(*p) && *p != '-' && *p != '_') {
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break;
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}
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}
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if (complete && *p) {
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return -1;
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}
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return p - str;
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}
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