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core: add permissions call

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Add a permissions call that can be used to update the permissions
of global objects. This can be used to set specific permissions
on certain objects, hide objects and define the permissions on new
objects. The system is quite generic so that we can extend it later
with more complicated match rules or so.
This commit is contained in:
Wim Taymans 2017-12-14 18:37:05 +01:00
parent ef800581f0
commit d5643e8472
7 changed files with 284 additions and 10 deletions
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51
src/modules/module-protocol-native/protocol-native.c
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@ -52,6 +52,28 @@ static void core_marshal_client_update(void *object, const struct spa_dict *prop
pw_protocol_native_end_proxy(proxy, b);
}
static void core_marshal_permissions(void *object, const struct spa_dict *props)
{
struct pw_proxy *proxy = object;
struct spa_pod_builder *b;
int i, n_items;
b = pw_protocol_native_begin_proxy(proxy, PW_CORE_PROXY_METHOD_PERMISSIONS);
n_items = props ? props->n_items : 0;
spa_pod_builder_add(b, "[ i", n_items, NULL);
for (i = 0; i < n_items; i++) {
spa_pod_builder_add(b,
"s", props->items[i].key,
"s", props->items[i].value, NULL);
}
spa_pod_builder_add(b, "]", NULL);
pw_protocol_native_end_proxy(proxy, b);
}
static void core_marshal_sync(void *object, uint32_t seq)
{
struct pw_proxy *proxy = object;
@ -397,6 +419,29 @@ static bool core_demarshal_client_update(void *object, void *data, size_t size)
return true;
}
static bool core_demarshal_permissions(void *object, void *data, size_t size)
{
struct pw_resource *resource = object;
struct spa_dict props;
struct spa_pod_parser prs;
uint32_t i;
spa_pod_parser_init(&prs, data, size, 0);
if (spa_pod_parser_get(&prs, "[ i", &props.n_items, NULL) < 0)
return false;
props.items = alloca(props.n_items * sizeof(struct spa_dict_item));
for (i = 0; i < props.n_items; i++) {
if (spa_pod_parser_get(&prs,
"s", &props.items[i].key,
"s", &props.items[i].value,
NULL) < 0)
return false;
}
pw_resource_do(resource, struct pw_core_proxy_methods, permissions, &props);
return true;
}
static bool core_demarshal_sync(void *object, void *data, size_t size)
{
struct pw_resource *resource = object;
@ -960,6 +1005,7 @@ static const struct pw_core_proxy_methods pw_protocol_native_core_method_marshal
&core_marshal_sync,
&core_marshal_get_registry,
&core_marshal_client_update,
&core_marshal_permissions,
&core_marshal_create_object,
&core_marshal_create_link
};
@ -969,6 +1015,7 @@ static const struct pw_protocol_native_demarshal pw_protocol_native_core_method_
{ &core_demarshal_sync, 0, },
{ &core_demarshal_get_registry, 0, },
{ &core_demarshal_client_update, 0, },
{ &core_demarshal_permissions, 0, },
{ &core_demarshal_create_object, PW_PROTOCOL_NATIVE_REMAP, },
{ &core_demarshal_create_link, PW_PROTOCOL_NATIVE_REMAP, }
};
@ -1003,11 +1050,11 @@ static const struct pw_protocol_marshal pw_protocol_native_core_marshal = {
static const struct pw_registry_proxy_methods pw_protocol_native_registry_method_marshal = {
PW_VERSION_REGISTRY_PROXY_METHODS,
&registry_marshal_bind
&registry_marshal_bind,
};
static const struct pw_protocol_native_demarshal pw_protocol_native_registry_method_demarshal[] = {
{ &registry_demarshal_bind, PW_PROTOCOL_NATIVE_REMAP, }
{ &registry_demarshal_bind, PW_PROTOCOL_NATIVE_REMAP, },
};
static const struct pw_registry_proxy_events pw_protocol_native_registry_event_marshal = {