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gss: port NegoEx implementation from MIT

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An implementation of draft-zhu-negoex-04 for MIT Kerberos was developed in
2011. This has been recently integrated, with many fixes from Greg Hudson. This
commit ports it to Heimdal. The implementation has been interoperability tested
with MIT Kerberos and Windows, using the GSS EAP mechanism developed as part of
the Moonshot project.

The SPNEGO code was also updated to import the state machine from Apple which
improves mechListMIC processing and avoids discarding initial context tokens
generated during mechanism probing, that can be used for optimistic tokens.

Finally, to aid in testing, the GSS-API mechanism glue configuration file can
be changed using the environment variable GSS_MECH_CONFIG. This environment
variable name, along with the format of the configuration file, is compatible
with MIT (although it would be difficult for a single mechanism binary to
support both implementations).
This commit is contained in:
Luke Howard
2019-12-30 13:34:10 +11:00
parent ae5c60286a
commit 4fb6a6adc9
45 changed files with 6241 additions and 863 deletions
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32
lib/gssapi/gssapi/gssapi_spnego.h
View File

@@ -50,6 +50,38 @@ extern GSSAPI_LIB_VARIABLE gss_OID_desc __gss_spnego_mechanism_oid_desc;
#define GSS_SPNEGO_MECHANISM (&__gss_spnego_mechanism_oid_desc)
#define gss_mech_spnego GSS_SPNEGO_MECHANISM
/*
* NegoEx extensions, to be implemented by mechanisms
*/
GSSAPI_LIB_FUNCTION OM_uint32 GSSAPI_LIB_CALL
gssspi_query_mechanism_info(
OM_uint32 * /* minor_status */,
gss_const_OID /* mech_oid */,
unsigned char[16] /* auth_scheme */
);
GSSAPI_LIB_FUNCTION OM_uint32 GSSAPI_LIB_CALL
gssspi_query_meta_data(
OM_uint32 * /* minor_status */,
gss_const_OID /* mech_oid */,
gss_cred_id_t /* cred_handle */,
gss_ctx_id_t * /* context_handle */,
gss_const_name_t /* targ_name */,
OM_uint32 /* req_flags */,
gss_buffer_t /* meta_data */
);
GSSAPI_LIB_FUNCTION OM_uint32 GSSAPI_LIB_CALL
gssspi_exchange_meta_data(
OM_uint32 * /* minor_status */,
gss_const_OID /* mech_oid */,
gss_cred_id_t /* cred_handle */,
gss_ctx_id_t * /* context_handle */,
gss_const_name_t /* targ_name */,
OM_uint32 /* req_flags */,
gss_const_buffer_t /* meta_data */
);
GSSAPI_CPP_END
#endif /* GSSAPI_SPNEGO_H_ */