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ConfigServer+LibConfig: Add pledge_domains() API

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This API lets applications specify which configuration domains they
will be accessing throughout their lifetime. It works similarly in
spirit to the kernel's pledge().

You cannot pledge_domains() more than once, and once you have used it,
it's no longer possible to access any other configuration domain.

This is obviously just a first cut of this mechanism, and we may need
to tweak it further as we go.
This commit is contained in:
Andreas Kling 2021-08-25 20:02:10 +02:00
parent 870ecd5190
commit eeddaa988a
5 changed files with 64 additions and 0 deletions
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6
Userland/Services/ConfigServer/ClientConnection.h
View file

@ -23,12 +23,18 @@ public:
private:
explicit ClientConnection(NonnullRefPtr<Core::LocalSocket>, int client_id);
virtual void pledge_domains(Vector<String> const&) override;
virtual Messages::ConfigServer::ReadStringValueResponse read_string_value([[maybe_unused]] String const& domain, [[maybe_unused]] String const& group, [[maybe_unused]] String const& key) override;
virtual Messages::ConfigServer::ReadI32ValueResponse read_i32_value([[maybe_unused]] String const& domain, [[maybe_unused]] String const& group, [[maybe_unused]] String const& key) override;
virtual Messages::ConfigServer::ReadBoolValueResponse read_bool_value([[maybe_unused]] String const& domain, [[maybe_unused]] String const& group, [[maybe_unused]] String const& key) override;
virtual void write_string_value([[maybe_unused]] String const& domain, [[maybe_unused]] String const& group, [[maybe_unused]] String const& key, [[maybe_unused]] String const& value) override;
virtual void write_i32_value([[maybe_unused]] String const& domain, [[maybe_unused]] String const& group, [[maybe_unused]] String const& key, [[maybe_unused]] i32 value) override;
virtual void write_bool_value([[maybe_unused]] String const& domain, [[maybe_unused]] String const& group, [[maybe_unused]] String const& key, [[maybe_unused]] bool value) override;
bool validate_access(String const& domain, String const& group, String const& key);
bool m_has_pledged { false };
HashTable<String> m_pledged_domains;
};
}