1/*
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11 * file.
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22 */
23
24
25//
26// acl_codesigning - ACL subject for signature of calling application
27//
28// Note:
29// Once upon a time, a code signature was a single binary blob, a "signature".
30// Then we added an optional second blob, a "comment". The comment was only
31// ancilliary (non-security) data first, but then we added more security data
32// to it later. Now, the security-relevant data is kept in a (signature, comment)
33// pair, all of which is relevant for the security of such subjects.
34// Don't read any particular semantics into this separation. It is historical only
35// (having to do with backward binary compatibility of ACL blobs).
36//
37#ifndef _H_ACL_CODESIGNING
38#define _H_ACL_CODESIGNING
39
40#include <security_cdsa_utilities/cssmdata.h>
41#include <security_cdsa_utilities/cssmacl.h>
42#include <security_cdsa_utilities/osxverifier.h>
43
44namespace Security {
45
46
47//
48// The CodeSignature subject type matches a code signature applied to the
49// disk image that originated the client process.
50//
51class CodeSignatureAclSubject : public AclSubject, public OSXVerifier {
52public:
53	class Maker; friend class Maker;
54
55	static const size_t commentBagAlignment = 4;
56
57    CodeSignatureAclSubject(const SHA1::Byte *hash, const std::string &path)
58		: AclSubject(CSSM_ACL_SUBJECT_TYPE_CODE_SIGNATURE), OSXVerifier(hash, path) { }
59
60	CodeSignatureAclSubject(const OSXVerifier &verifier)
61		: AclSubject(CSSM_ACL_SUBJECT_TYPE_CODE_SIGNATURE), OSXVerifier(verifier) { }
62
63    bool validate(const AclValidationContext &baseCtx) const;
64    CssmList toList(Allocator &alloc) const;
65
66    void exportBlob(Writer::Counter &pub, Writer::Counter &priv);
67    void exportBlob(Writer &pub, Writer &priv);
68
69	IFDUMP(void debugDump() const);
70
71public:
72    class Environment : public virtual AclValidationEnvironment {
73    public:
74		virtual bool verifyCodeSignature(const OSXVerifier &verifier,
75			const AclValidationContext &context) = 0;
76    };
77
78public:
79    class Maker : public AclSubject::Maker {
80    public:
81    	Maker()
82		: AclSubject::Maker(CSSM_ACL_SUBJECT_TYPE_CODE_SIGNATURE) { }
83    	CodeSignatureAclSubject *make(const TypedList &list) const;
84    	CodeSignatureAclSubject *make(Version version, Reader &pub, Reader &priv) const;
85
86	private:
87		CodeSignatureAclSubject *make(const SHA1::Byte *hash, const CssmData &commentBag) const;
88    };
89};
90
91} // end namespace Security
92
93
94
95#endif //_H_ACL_CODESIGNING
96