#ifndef __ABAC_H__ #define __ABAC_H__ #include #include #include #include typedef struct _abac_context_t abac_context_t; typedef struct _abac_credential_t abac_credential_t; typedef struct _abac_aspect_t abac_aspect_t; typedef struct _abac_attribute_t abac_attribute_t; typedef struct _abac_id_t abac_id_t; typedef struct _abac_id_credential_t abac_id_credential_t; typedef struct _abac_condition_t abac_condition_t; typedef struct _abac_term_t abac_term_t; typedef struct _abac_param_list_t abac_param_list_t; /* * ABAC functions, operating on an ABAC context. */ abac_context_t *abac_context_new(void); abac_context_t *abac_context_dup(abac_context_t *ctx); void abac_context_free(abac_context_t *ctx); /* see the bottom of the file for possible return codes */ int abac_context_load_id_id(abac_context_t *ctx, abac_id_t *); int abac_context_load_id_file(abac_context_t *ctx, char *filename, char* keyfielname); int abac_context_load_id_chunk(abac_context_t *ctx, abac_chunk_t cert); int abac_context_load_attribute_attribute(abac_context_t *ctx, abac_attribute_t *); int abac_context_load_attribute_file(abac_context_t *ctx, char *filename); int abac_context_load_attribute_chunk(abac_context_t *ctx, abac_chunk_t cert); /* load an entire directory full of certs */ void abac_context_load_directory(abac_context_t *ctx, char *path); /* abac query, returns a NULL-terminated array of credentials on success, NULL on fail */ abac_credential_t **abac_context_query(abac_context_t *ctx, char *role, char *principal, int *success); /* get all the credentials from the context, returns a NULL-terminated array of credentials */ abac_credential_t **abac_context_credentials(abac_context_t *ctx); /* use this to free the results of either of the previous two functions */ void abac_context_credentials_free(abac_credential_t **credentials); /* * Operations on credentials */ abac_aspect_t *abac_credential_head(abac_credential_t *cred); abac_aspect_t *abac_credential_tail(abac_credential_t *cred); abac_chunk_t abac_credential_attribute_cert(abac_credential_t *cred); abac_chunk_t abac_credential_issuer_cert(abac_credential_t *cred); abac_credential_t *abac_credential_lookup(char *cred_string); abac_id_credential_t *abac_id_credential_lookup(char*); abac_id_t *abac_id_credential_id(abac_id_credential_t *ptr); abac_credential_t *abac_credential_dup(abac_credential_t *cred); abac_attribute_t *abac_credential_attribute(abac_credential_t *cred); void abac_credential_free(abac_credential_t *cred); /* * Operations on aspect. */ abac_aspect_t *abac_aspect_role_principal_create(char *principal_name); abac_aspect_t *abac_aspect_oset_principal_create(char *principal_name); abac_aspect_t *abac_aspect_role_create(char *principal_name, char *role_name); abac_aspect_t *abac_aspect_oset_create(char *principal_name, char *oset_name); bool abac_aspect_is_principal(abac_aspect_t *ptr); abac_aspect_t *abac_aspect_dup(abac_aspect_t *ptr); char *abac_aspect_string(abac_aspect_t *ptr); bool abac_aspect_is_linking(abac_aspect_t *ptr); char *abac_aspect_typed_string(abac_aspect_t *ptr); abac_aspect_t *abac_aspect_add_param(abac_aspect_t *ptr, abac_term_t *param); abac_aspect_t *abac_aspect_add_linked_param(abac_aspect_t *ptr, abac_term_t *param); bool abac_aspect_is_object(abac_aspect_t *ptr); char *abac_aspect_principal_name(abac_aspect_t *ptr); char* abac_aspect_type_string(abac_aspect_t *ptr); char *abac_aspect_aspect_name(abac_aspect_t *ptr); int abac_aspect_aspect_type(abac_aspect_t *ptr); abac_param_list_t *abac_aspect_aspect_params(abac_aspect_t *ptr); abac_param_list_t *abac_aspect_linked_role_params(abac_aspect_t *ptr); abac_aspect_t *abac_aspect_oset_linking_new(char *principal_name, char *linked_role_name, char *oset_name); abac_aspect_t *abac_aspect_role_linking_new(char *principal_name, char *linked_role_name, char *role_name); abac_aspect_t *abac_aspect_role_new(char *principal_name, char *role_name); abac_aspect_t *abac_aspect_oset_new(char *principal_name, char *oset_name); abac_aspect_t *abac_aspect_oset_principal_new(char *principal_name); abac_aspect_t *abac_aspect_role_principal_new(char *principal_name); abac_aspect_t *abac_aspect_oset_object_new(abac_term_t *object); char *abac_aspect_linked_role_name(abac_aspect_t *ptr); char *abac_aspect_object_name(abac_aspect_t *ptr); char *abac_aspect_object_type(abac_aspect_t *ptr); abac_list_t *abac_aspect_prereqs(abac_aspect_t *ptr); char *abac_aspect_string_with_condition(abac_aspect_t *); char *abac_aspect_typed_string_with_condition(abac_aspect_t *); char *abac_aspect_principal_principalname(abac_aspect_t *ptr); void abac_print_aspect_string_with_condition(abac_aspect_t *ptr,FILE *fp); char *abac_aspect_aspect_param_string(abac_aspect_t *ptr); abac_aspect_t *abac_aspect_intersection_new(abac_aspect_t *); abac_aspect_t *abac_aspect_add_intersecting_aspect(abac_aspect_t *ptr, abac_aspect_t *aspect); abac_id_t *abac_aspect_get_issuer_id(abac_aspect_t *ptr); int abac_aspect_intersecting_aspect_type(abac_aspect_t *ptr); /* abac_attribute */ abac_chunk_t abac_attribute_cert_chunk(abac_attribute_t *ptr); int abac_attribute_write(abac_attribute_t *ptr, FILE *out); int abac_attribute_bake(abac_attribute_t *ptr); int abac_attribute_baked(abac_attribute_t *ptr); abac_aspect_t *abac_attribute_head(abac_attribute_t *ptr); abac_aspect_t *abac_attribute_tail(abac_attribute_t *ptr); int abac_attribute_lastone(abac_attribute_t *ptr); int abac_attribute_create(abac_attribute_t **ret,abac_aspect_t *head, abac_aspect_t *tail,int validity); abac_attribute_t *abac_attribute_set_head(abac_attribute_t *ptr, abac_aspect_t *); abac_attribute_t *abac_attribute_add_tail(abac_attribute_t *ptr, abac_aspect_t *); abac_attribute_t *abac_attribute_dup(abac_attribute_t *ptr); abac_aspect_t **abac_attribute_tail_vectorized(abac_attribute_t *ptr); void abac_attribute_free(abac_attribute_t *ptr); void abac_aspects_free(abac_aspect_t **aspects); /* * Operations on term/params. */ abac_condition_t *abac_condition_dup(abac_condition_t *ptr); void abac_condition_free(abac_condition_t *ptr); abac_condition_t *abac_condition_from_string(char *string); abac_condition_t *abac_condition_from_aspect(abac_aspect_t *ptr); char *abac_condition_typed_string(abac_condition_t *ptr); char *abac_condition_string(abac_condition_t *ptr); char *abac_condtype_name(int); char *abac_term_to_time(char *string); char *abac_term_typed_string(abac_term_t *ptr); char *abac_term_string(abac_term_t *ptr); char *abac_term_type_name(abac_term_t *term); abac_term_t *abac_term_dup(abac_term_t *ptr); abac_term_t *abac_term_create(int, char*, abac_condition_t*); abac_term_t *abac_term_named_create(int, char*); bool abac_term_is_urn_type(abac_term_t *); bool abac_term_is_integer_type(abac_term_t *); int abac_term_type(abac_term_t *term); abac_term_t *abac_term_add_constraint(abac_term_t *ptr, abac_condition_t *cond); abac_term_t *abac_term_new(int, char *, char *, abac_aspect_t *); abac_term_t *abac_term_named_new(int, char *); void abac_term_free(abac_term_t *); bool abac_term_is_time_type(abac_term_t *); bool abac_term_is_string_type(abac_term_t *); char *abac_term_name(abac_term_t *); abac_condition_t *abac_term_constraint(abac_term_t *term); abac_param_list_t *abac_param_list_new(abac_term_t *term); abac_param_list_t *abac_param_list_free(abac_param_list_t *ptr); abac_param_list_t *abac_param_list_add_term(abac_param_list_t *, abac_term_t *term); char* abac_param_list_string(abac_param_list_t *ptr); char* abac_param_list_string_with_condition(abac_param_list_t *ptr); char* abac_param_list_typed_string_with_condition(abac_param_list_t *ptr); abac_term_t **abac_param_list_vectorize(abac_param_list_t *ptr); void abac_terms_free(abac_term_t **terms); /* from abac_verifier */ char *abac_cn_with_sha(char*); char *abac_idtype_with_sha(char*); abac_stack_t *abac_verifier_dump_creds(); abac_id_credential_t *abac_verifier_add_id_credential(abac_id_t *a_id); /* from abac_id */ int abac_id_lastone(abac_id_t *ptr); abac_id_t *abac_id_dup(abac_id_t *id); void abac_id_free(abac_id_t *id); char *abac_id_cn(abac_id_t *id); char *abac_id_keyid(abac_id_t *id); abac_id_t *abac_id_from_file(char *filename); int abac_id_load_privkey(abac_id_t *id, char *filename); int abac_id_write_privkey(abac_id_t *id, FILE *out); int abac_id_has_privkey(abac_id_t *id); void abac_id_write_cert(abac_id_t *id, FILE *out); int abac_id_generate(abac_id_t **ret, char *cn, int validity); abac_chunk_t abac_id_cert_chunk(abac_id_t *id); /* from abac_aspect */ void abac_aspect_free(abac_aspect_t *); void abac_errx(int val, const char *string); /* * Error codes for loading certificates. */ #define ABAC_CERT_SUCCESS 0 // certificate loaded, all is well #define ABAC_CERT_INVALID -1 // invalid format; also file not found #define ABAC_CERT_BAD_SIG -2 // invalid signature #define ABAC_CERT_MISSING_ISSUER -3 // missing ID cert that issued the attribute cert #define ABAC_CERT_BAD_CN -4 // ID cert is not matching CN=principal format #define ABAC_CERT_BAD_YAP -5 // failed to insert into prolog engine #define ABAC_ID_SUCCESS 0 #define ABAC_ID_GENERATE_INVALID_CN -1 #define ABAC_ID_GENERATE_INVALID_VALIDITY -2 #define ABAC_ATTRIBUTE_SUCCESS 0 #define ABAC_ATTRIBUTE_INVALID_ROLE -1 #define ABAC_ATTRIBUTE_INVALID_VALIDITY -2 #define ABAC_ATTRIBUTE_ISSUER_NOKEY -3 #define USE(evalue) ((getenv(evalue)!=NULL)?1:0) #endif /* __ABAC_H__ */