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protocol: check any incoming/outgoing messages for versions

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Don't let a interface version 2 send version 3 request or receive those
events.
This commit is contained in:
Peter Hutterer 2023-02-03 15:44:44 +10:00
parent c98a9fc7d7
commit b9037ed4ff
1 changed files with 8 additions and 0 deletions
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8
proto/ei-proto.c.tmpl
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@ -75,6 +75,10 @@ int
{
const struct brei_object *obj = {{interface.name}}_get_proto_object({{interface.name}});
{{target.ctype}} ctx = {{interface.name}}_get_{{target.context}}({{interface.name}});
if (obj->version < {{outgoing.fqdn.upper()}}_SINCE_VERSION)
return -ENOTSUP;
return {{target.name}}_send_message(
ctx, obj->id, {{outgoing.fqdn.upper()}}, "{{outgoing.signature}}",
{{outgoing.arguments|length}}{%- for arg in outgoing.arguments %}, {{arg.name}}{% endfor -%}
@ -96,9 +100,13 @@ static int
) {
{% if interface.incoming|length %}
const struct {{interface.name}}_interface *interface = {{interface.name}}_get_interface({{interface.name}});
const struct brei_object *obj = {{interface.name}}_get_proto_object({{interface.name}});
switch (opcode) {
{% for incoming in interface.incoming %}
case {{incoming.fqdn.upper()}}:
if (obj->version < {{incoming.fqdn.upper()}}_SINCE_VERSION)
return -ENOTSUP;
assert(interface->{{incoming.name}} != NULL);
return interface->{{incoming.name}}({{interface.name}}{% for arg in incoming.arguments %}, (args + {{loop.index - 1}})->{{arg.argtype}}{% endfor %});
{% endfor %}