/** * Passes back the mech set of available mechs. * We only have one for now. * * @param minor_status * @param mech_set * * @return */ OM_uint32 GSS_CALLCONV gss_indicate_mechs( OM_uint32 * minor_status, gss_OID_set * mech_set) { OM_uint32 major_status = GSS_S_COMPLETE; OM_uint32 local_minor_status; gss_OID_set_desc * set; static char * _function_name_ = "gss_indicate_mechs"; GLOBUS_I_GSI_GSSAPI_DEBUG_ENTER; if (minor_status == NULL || mech_set == NULL) { major_status = GSS_S_FAILURE; if (minor_status != NULL) { GLOBUS_GSI_GSSAPI_OPENSSL_ERROR_RESULT( minor_status, GLOBUS_GSI_GSSAPI_ERROR_BAD_ARGUMENT, (_GGSL("Invalid parameter"))); } goto exit; } *minor_status = (OM_uint32) GLOBUS_SUCCESS; major_status = gss_create_empty_oid_set(&local_minor_status, &set); if (GSS_ERROR(major_status)) { GLOBUS_GSI_GSSAPI_ERROR_CHAIN_RESULT( minor_status, local_minor_status, GLOBUS_GSI_GSSAPI_ERROR_BAD_MECH); goto exit; } major_status = gss_add_oid_set_member( &local_minor_status, (const gss_OID) gss_mech_globus_gssapi_openssl, &set); if (GSS_ERROR(major_status)) { GLOBUS_GSI_GSSAPI_ERROR_CHAIN_RESULT( minor_status, local_minor_status, GLOBUS_GSI_GSSAPI_ERROR_WITH_OID); gss_release_oid_set(&local_minor_status, &set); goto exit; } *mech_set = set; exit: GLOBUS_I_GSI_GSSAPI_DEBUG_EXIT; return major_status; }
/** * @brief Initiate Delegation * @ingroup globus_gsi_gssapi_extensions_delegation * @details * This functions drives the initiating side of the credential * delegation process. It is expected to be called in tandem with the * gss_accept_delegation function. * * @param minor_status * The minor status returned by this function. This parameter * will be 0 upon success. * @param context_handle * The security context over which the credential is * delegated. * @param cred_handle * The credential to be delegated. May be GSS_C_NO_CREDENTIAL * in which case the credential associated with the security * context is used. * @param desired_mech * The desired security mechanism. Currently not used. May be * GSS_C_NO_OID. * @param extension_oids * A set of extension OIDs corresponding to buffers in the * extension_buffers parameter below. The extensions specified * will be added to the delegated credential. May be * GSS_C_NO_BUFFER_SET. * @param extension_buffers * A set of extension buffers corresponding to OIDs in the * extension_oids parameter above. May be * GSS_C_NO_BUFFER_SET. * @param input_token * The token that was produced by a prior call to * gss_accept_delegation. This parameter will be ignored the * first time this function is called. * @param req_flags * Flags that modify the behavior of the function. Currently * only GSS_C_GLOBUS_SSL_COMPATIBLE and * GSS_C_GLOBUS_LIMITED_DELEG_PROXY_FLAG are checked for. The * GSS_C_GLOBUS_SSL_COMPATIBLE flag results in tokens that * aren't wrapped and GSS_C_GLOBUS_LIMITED_DELEG_PROXY_FLAG * causes the delegated proxy to be limited (requires that no * extensions are specified. * * @param time_req * The requested period of validity (seconds) of the delegated * credential. Passing a time_req of 0 cause the delegated credential to * have the same lifetime as the credential that issued it. * @param output_token * A token that should be passed to gss_accept_delegation if the * return value is GSS_S_CONTINUE_NEEDED. * @retval GSS_S_COMPLETE Success * @retval GSS_S_CONTINUE_NEEDED This function needs to be called again. * @retval GSS_S_FAILURE upon failure */ OM_uint32 GSS_CALLCONV gss_init_delegation( OM_uint32 * minor_status, const gss_ctx_id_t context_handle, const gss_cred_id_t cred_handle, const gss_OID desired_mech, const gss_OID_set extension_oids, const gss_buffer_set_t extension_buffers, const gss_buffer_t input_token, OM_uint32 req_flags, OM_uint32 time_req, gss_buffer_t output_token) { BIO * bio = NULL; BIO * read_bio = NULL; BIO * write_bio = NULL; OM_uint32 major_status = GSS_S_COMPLETE; OM_uint32 local_minor_status; gss_ctx_id_desc * context; gss_cred_id_desc * cred; X509 * cert = NULL; STACK_OF(X509) * cert_chain = NULL; PROXYCERTINFO * pci; globus_gsi_cert_utils_cert_type_t cert_type; int index; globus_result_t local_result = GLOBUS_SUCCESS; static char * _function_name_ = "init_delegation"; GLOBUS_I_GSI_GSSAPI_DEBUG_ENTER; if(minor_status == NULL) { major_status = GSS_S_FAILURE; goto exit; } *minor_status = (OM_uint32) GLOBUS_SUCCESS; if(context_handle == GSS_C_NO_CONTEXT) { GLOBUS_GSI_GSSAPI_ERROR_RESULT( minor_status, GLOBUS_GSI_GSSAPI_ERROR_BAD_ARGUMENT, (_GGSL("Invalid context_handle passed to function"))); major_status = GSS_S_FAILURE; goto exit; } context = (gss_ctx_id_desc *) context_handle; cred = (gss_cred_id_desc *) cred_handle; if (cred_handle == GSS_C_NO_CREDENTIAL) { cred = (gss_cred_id_desc *) context->cred_handle; } if(cred == GSS_C_NO_CREDENTIAL) { GLOBUS_GSI_GSSAPI_ERROR_RESULT( minor_status, GLOBUS_GSI_GSSAPI_ERROR_BAD_ARGUMENT, (_GGSL("Couldn't initialize delegation credential handle"))); major_status = GSS_S_FAILURE; goto exit; } if(desired_mech != GSS_C_NO_OID && desired_mech != (gss_OID) gss_mech_globus_gssapi_openssl) { GLOBUS_GSI_GSSAPI_ERROR_RESULT( minor_status, GLOBUS_GSI_GSSAPI_ERROR_BAD_ARGUMENT, (_GGSL("Invalid desired_mech passed to function"))); major_status = GSS_S_FAILURE; goto exit; } if(extension_oids != GSS_C_NO_OID_SET && (extension_buffers == GSS_C_NO_BUFFER_SET || extension_oids->count != extension_buffers->count)) { GLOBUS_GSI_GSSAPI_ERROR_RESULT( minor_status, GLOBUS_GSI_GSSAPI_ERROR_BAD_ARGUMENT, (_GGSL("Invalid extension parameters passed to function"))); major_status = GSS_S_FAILURE; goto exit; } if(output_token == GSS_C_NO_BUFFER) { GLOBUS_GSI_GSSAPI_ERROR_RESULT( minor_status, GLOBUS_GSI_GSSAPI_ERROR_BAD_ARGUMENT, (_GGSL("Invalid output_token passed to function"))); major_status = GSS_S_FAILURE; goto exit; } output_token->length = 0; if(req_flags & GSS_C_GLOBUS_SSL_COMPATIBLE) { bio = BIO_new(BIO_s_mem()); read_bio = bio; write_bio = bio; } else { bio = context->gss_sslbio; } /* lock the context mutex */ globus_mutex_lock(&context->mutex); /* pass the input to the BIO */ if(context->delegation_state != GSS_DELEGATION_START) { /* * first time there is no input token, but after that * there will always be one */ if(input_token == GSS_C_NO_BUFFER) { GLOBUS_GSI_GSSAPI_ERROR_RESULT( minor_status, GLOBUS_GSI_GSSAPI_ERROR_BAD_ARGUMENT, (_GGSL("Invalid input_token passed to function: " "delegation is not at initial state"))); major_status = GSS_S_FAILURE; goto mutex_unlock; } major_status = globus_i_gsi_gss_put_token(&local_minor_status, context, read_bio, input_token); if (GSS_ERROR(major_status)) { GLOBUS_GSI_GSSAPI_ERROR_CHAIN_RESULT( minor_status, local_minor_status, GLOBUS_GSI_GSSAPI_ERROR_TOKEN_FAIL); goto mutex_unlock; } } /* delegation state machine */ switch (context->delegation_state) { case GSS_DELEGATION_START: /* start delegation by sending a "D" */ BIO_write(bio, "D", 1); context->delegation_state = GSS_DELEGATION_SIGN_CERT; break; case GSS_DELEGATION_SIGN_CERT: /* get the returned cert from the ssl BIO, make sure it is * correct and then sign it and place it in the output_token */ local_result = globus_gsi_proxy_inquire_req(context->proxy_handle, bio); if(local_result != GLOBUS_SUCCESS) { GLOBUS_GSI_GSSAPI_ERROR_CHAIN_RESULT( minor_status, local_result, GLOBUS_GSI_GSSAPI_ERROR_WITH_GSI_PROXY); major_status = GSS_S_FAILURE; goto mutex_unlock; } local_result = globus_gsi_cred_get_cert_type( context->cred_handle->cred_handle, &cert_type); if(local_result != GLOBUS_SUCCESS) { GLOBUS_GSI_GSSAPI_ERROR_CHAIN_RESULT( minor_status, local_result, GLOBUS_GSI_GSSAPI_ERROR_WITH_GSI_CREDENTIAL); major_status = GSS_S_FAILURE; context->delegation_state = GSS_DELEGATION_DONE; goto mutex_unlock; } /* set the requested time */ if(time_req != 0) { if(time_req%60) { /* round up */ time_req += 60; } local_result = globus_gsi_proxy_handle_set_time_valid( context->proxy_handle, time_req/60); if(local_result != GLOBUS_SUCCESS) { GLOBUS_GSI_GSSAPI_ERROR_CHAIN_RESULT( minor_status, local_result, GLOBUS_GSI_GSSAPI_ERROR_WITH_GSI_PROXY); major_status = GSS_S_FAILURE; context->delegation_state = GSS_DELEGATION_DONE; goto mutex_unlock; } } /* clear the proxycertinfo */ local_result = globus_gsi_proxy_handle_clear_cert_info(context->proxy_handle); if(local_result != GLOBUS_SUCCESS) { GLOBUS_GSI_GSSAPI_ERROR_CHAIN_RESULT( minor_status, local_result, GLOBUS_GSI_GSSAPI_ERROR_WITH_GSI_PROXY); major_status = GSS_S_FAILURE; context->delegation_state = GSS_DELEGATION_DONE; goto mutex_unlock; } if(cert_type == GLOBUS_GSI_CERT_UTILS_TYPE_CA) { GLOBUS_GSI_GSSAPI_ERROR_CHAIN_RESULT( minor_status, local_result, GLOBUS_GSI_GSSAPI_ERROR_WITH_GSI_CREDENTIAL); major_status = GSS_S_FAILURE; context->delegation_state = GSS_DELEGATION_DONE; goto mutex_unlock; } local_result = globus_gsi_proxy_handle_set_type( context->proxy_handle, (req_flags & GSS_C_GLOBUS_DELEGATE_LIMITED_PROXY_FLAG) ? GLOBUS_GSI_CERT_UTILS_TYPE_LIMITED_PROXY : GLOBUS_GSI_CERT_UTILS_TYPE_IMPERSONATION_PROXY); if(local_result != GLOBUS_SUCCESS) { GLOBUS_GSI_GSSAPI_ERROR_CHAIN_RESULT( minor_status, local_result, GLOBUS_GSI_GSSAPI_ERROR_WITH_GSI_PROXY); major_status = GSS_S_FAILURE; context->delegation_state = GSS_DELEGATION_DONE; goto mutex_unlock; } /* set the proxycertinfo here */ if(extension_oids != GSS_C_NO_OID_SET) { if(GLOBUS_GSI_CERT_UTILS_IS_GSI_2_PROXY(cert_type)) { GLOBUS_GSI_GSSAPI_ERROR_RESULT( minor_status, GLOBUS_GSI_GSSAPI_ERROR_BAD_ARGUMENT, (_GGSL("A restricted globus proxy may not be created " "from a legacy globus proxy"))); context->delegation_state = GSS_DELEGATION_DONE; major_status = GSS_S_FAILURE; goto mutex_unlock; } for(index = 0; index < extension_oids->count; index++) { if(g_OID_equal((gss_OID) &extension_oids->elements[index], gss_proxycertinfo_extension)) { pci = extension_buffers->elements[index].value; local_result = globus_gsi_proxy_handle_set_proxy_cert_info( context->proxy_handle, pci); if(local_result != GLOBUS_SUCCESS) { GLOBUS_GSI_GSSAPI_ERROR_CHAIN_RESULT( minor_status, local_result, GLOBUS_GSI_GSSAPI_ERROR_WITH_GSI_PROXY); major_status = GSS_S_FAILURE; context->delegation_state = GSS_DELEGATION_DONE; goto mutex_unlock; } } } } local_result = globus_gsi_proxy_sign_req( context->proxy_handle, cred->cred_handle, bio); if(local_result != GLOBUS_SUCCESS) { GLOBUS_GSI_GSSAPI_ERROR_CHAIN_RESULT( minor_status, local_result, GLOBUS_GSI_GSSAPI_ERROR_WITH_GSI_PROXY); major_status = GSS_S_FAILURE; context->delegation_state = GSS_DELEGATION_DONE; goto mutex_unlock; } local_result = globus_gsi_cred_get_cert(cred->cred_handle, &cert); if(local_result != GLOBUS_SUCCESS) { GLOBUS_GSI_GSSAPI_ERROR_CHAIN_RESULT( minor_status, local_result, GLOBUS_GSI_GSSAPI_ERROR_WITH_GSI_CREDENTIAL); major_status = GSS_S_FAILURE; context->delegation_state = GSS_DELEGATION_DONE; goto mutex_unlock; } /* push the cert used to sign the proxy */ i2d_X509_bio(bio, cert); X509_free(cert); /* push the number of certs in the cert chain */ local_result = globus_gsi_cred_get_cert_chain(cred->cred_handle, &cert_chain); if(local_result != GLOBUS_SUCCESS) { GLOBUS_GSI_GSSAPI_ERROR_CHAIN_RESULT( minor_status, local_result, GLOBUS_GSI_GSSAPI_ERROR_WITH_GSI_CREDENTIAL); major_status = GSS_S_FAILURE; context->delegation_state = GSS_DELEGATION_DONE; goto mutex_unlock; } for(index = 0; index < sk_X509_num(cert_chain); index++) { cert = sk_X509_value(cert_chain, index); if(!cert) { GLOBUS_GSI_GSSAPI_OPENSSL_ERROR_RESULT( minor_status, GLOBUS_GSI_GSSAPI_ERROR_WITH_OPENSSL, (_GGSL("Couldn't get cert from cert chain"))); major_status = GSS_S_FAILURE; context->delegation_state = GSS_DELEGATION_DONE; goto mutex_unlock; } i2d_X509_bio(bio, cert); } sk_X509_pop_free(cert_chain, X509_free); /* reset state machine */ context->delegation_state = GSS_DELEGATION_START; break; case GSS_DELEGATION_COMPLETE_CRED: case GSS_DELEGATION_DONE: break; } major_status = globus_i_gsi_gss_get_token(&local_minor_status, context, write_bio, output_token); if(GSS_ERROR(major_status)) { GLOBUS_GSI_GSSAPI_ERROR_CHAIN_RESULT( minor_status, local_minor_status, GLOBUS_GSI_GSSAPI_ERROR_TOKEN_FAIL); goto mutex_unlock; } if (context->delegation_state != GSS_DELEGATION_START) { major_status |= GSS_S_CONTINUE_NEEDED; } mutex_unlock: globus_mutex_unlock(&context->mutex); exit: if(req_flags & GSS_C_GLOBUS_SSL_COMPATIBLE) { BIO_free(bio); } GLOBUS_I_GSI_GSSAPI_DEBUG_EXIT; return major_status; }
OM_uint32 GSS_CALLCONV gss_inquire_names_for_mech( OM_uint32 * minor_status, const gss_OID mechanism, gss_OID_set * name_types ) { static char * _function_name_ = "gss_inquire_names_for_mech"; OM_uint32 major_status; int i; gss_OID oids[] = { GSS_C_NT_HOSTBASED_SERVICE, GSS_C_NT_ANONYMOUS, GSS_C_NT_EXPORT_NAME, (gss_OID) gss_nt_host_ip, (gss_OID) gss_nt_x509, NULL }; if (minor_status == NULL || mechanism == NULL || name_types == NULL) { if (minor_status != NULL) { GLOBUS_GSI_GSSAPI_OPENSSL_ERROR_RESULT( minor_status, GLOBUS_GSI_GSSAPI_ERROR_BAD_ARGUMENT, (_GGSL("Invalid parameter"))); } major_status = GSS_S_FAILURE; goto out; } if (! g_OID_equal(mechanism, gss_mech_globus_gssapi_openssl)) { GLOBUS_GSI_GSSAPI_OPENSSL_ERROR_RESULT( minor_status, GLOBUS_GSI_GSSAPI_ERROR_BAD_MECH, (_GGSL("Requested mechanism not supported"))); major_status = GSS_S_BAD_MECH; goto out; } major_status = gss_create_empty_oid_set(minor_status, name_types); if (major_status != GSS_S_COMPLETE) { goto out; } for (i = 0; oids[i] != NULL; i++) { major_status = gss_add_oid_set_member( minor_status, oids[i], name_types); if (major_status != GSS_S_COMPLETE) { goto free_oids; } } free_oids: if (major_status != GSS_S_COMPLETE) { OM_uint32 local_major; OM_uint32 local_minor; local_major = gss_release_oid_set( &local_minor, name_types); } out: return major_status; }
/** * @brief Export a GSSAPI credential * @ingroup globus_gsi_gssapi_extensions * @details * Saves the credential so it can be checkpointed and * imported by gss_import_cred * * @param minor_status * @param cred_handle * @param desired_mech * Should either be gss_mech_globus_gssapi_openssl or * NULL (in which case gss_mech_globus_gssapi_openssl is * assumed). * @param option_req * @param export_buffer * * @return */ OM_uint32 GSS_CALLCONV gss_export_cred( OM_uint32 * minor_status, const gss_cred_id_t cred_handle, const gss_OID desired_mech, OM_uint32 option_req, gss_buffer_t export_buffer) { OM_uint32 major_status = GLOBUS_SUCCESS; BIO * bp = NULL; gss_cred_id_desc * cred_desc = NULL; globus_result_t local_result; char * proxy_filename = NULL; GLOBUS_I_GSI_GSSAPI_DEBUG_ENTER; cred_desc = (gss_cred_id_desc *) cred_handle; *minor_status = (OM_uint32) GLOBUS_SUCCESS; if (export_buffer == NULL || export_buffer == GSS_C_NO_BUFFER) { major_status = GSS_S_FAILURE; GLOBUS_GSI_GSSAPI_ERROR_RESULT( minor_status, GLOBUS_GSI_GSSAPI_ERROR_BAD_ARGUMENT, (_GGSL("NULL or empty export_buffer parameter passed to function: %s"), __func__)); goto exit; } export_buffer->length = 0; export_buffer->value = NULL; if (cred_handle == NULL) { major_status = GSS_S_FAILURE; GLOBUS_GSI_GSSAPI_ERROR_RESULT( minor_status, GLOBUS_GSI_GSSAPI_ERROR_BAD_ARGUMENT, (_GGSL("NULL or empty export_buffer parameter passed to function: %s"), __func__)); goto exit; } if(desired_mech != NULL && g_OID_equal(desired_mech, (gss_OID) gss_mech_globus_gssapi_openssl)) { major_status = GSS_S_BAD_MECH; GLOBUS_GSI_GSSAPI_ERROR_RESULT( minor_status, GLOBUS_GSI_GSSAPI_ERROR_BAD_MECH, (_GGSL("The desired mechanism of: %s, is not supported by this " "GSS implementation"), desired_mech->elements)); goto exit; } if(option_req == GSS_IMPEXP_OPAQUE_FORM) { /* When option_req is equal to EXPORT_OPAQUE_FORM (0), it exports * an opaque buffer suitable for storage in memory or on * disk or passing to another process, which * can import the buffer with gss_import_cred(). */ bp = BIO_new(BIO_s_mem()); if(bp == NULL) { GLOBUS_GSI_GSSAPI_OPENSSL_ERROR_RESULT( minor_status, GLOBUS_GSI_GSSAPI_ERROR_WITH_OPENSSL, (_GGSL("Couldn't initialize IO bio for exporting credential"))); major_status = GSS_S_FAILURE; goto exit; } local_result = globus_gsi_cred_write(cred_desc->cred_handle, bp); if(local_result != GLOBUS_SUCCESS) { GLOBUS_GSI_GSSAPI_ERROR_CHAIN_RESULT( minor_status, local_result, GLOBUS_GSI_GSSAPI_ERROR_IMPEXP_BIO_SSL); major_status = GSS_S_FAILURE; goto exit; } export_buffer->length = BIO_pending(bp); if (export_buffer->length > 0) { export_buffer->value = (char *) malloc(export_buffer->length); if (export_buffer->value == NULL) { export_buffer->length = 0; GLOBUS_GSI_GSSAPI_MALLOC_ERROR(minor_status); major_status = GSS_S_FAILURE; goto exit; } BIO_read(bp, export_buffer->value, export_buffer->length); } else { export_buffer->value = NULL; } major_status = GSS_S_COMPLETE; } else if(option_req == GSS_IMPEXP_MECH_SPECIFIC) { /* With option_req is equal to EXPORT_MECH_SPECIFIC (1), * it exports a buffer filled with mechanism-specific * information that the calling application can use * to pass the credentials to another process that * is not written to the GSS-API. */ local_result = GLOBUS_GSI_SYSCONFIG_GET_UNIQUE_PROXY_FILENAME(&proxy_filename); if(local_result != GLOBUS_SUCCESS) { proxy_filename = NULL; GLOBUS_GSI_GSSAPI_ERROR_CHAIN_RESULT( minor_status, local_result, GLOBUS_GSI_GSSAPI_ERROR_WITH_GSI_PROXY); major_status = GSS_S_FAILURE; goto exit; } GLOBUS_I_GSI_GSSAPI_DEBUG_FPRINTF( 3, (globus_i_gsi_gssapi_debug_fstream, "Writing exported cred to: %s\n", proxy_filename)); local_result = globus_gsi_cred_write_proxy(cred_desc->cred_handle, proxy_filename); if(local_result != GLOBUS_SUCCESS) { GLOBUS_GSI_GSSAPI_ERROR_CHAIN_RESULT( minor_status, local_result, GLOBUS_GSI_GSSAPI_ERROR_WITH_GSI_PROXY); major_status = GSS_S_FAILURE; goto exit; } export_buffer->value = globus_common_create_string( "X509_USER_PROXY=%s", proxy_filename); export_buffer->length = strlen(export_buffer->value)+1; } else { major_status = GSS_S_FAILURE; GLOBUS_GSI_GSSAPI_ERROR_RESULT( minor_status, GLOBUS_GSI_GSSAPI_ERROR_BAD_ARGUMENT, (_GGSL("Unrecognized option_req of: %d"), option_req)); goto exit; } exit: if(proxy_filename != NULL) { free(proxy_filename); } if (bp) { BIO_free(bp); } GLOBUS_I_GSI_GSSAPI_DEBUG_EXIT; return major_status; }
/** * @brief Inquire Sec Context by OID * @ingroup globus_gsi_gssapi_extensions */ OM_uint32 GSS_CALLCONV gss_inquire_sec_context_by_oid( OM_uint32 * minor_status, const gss_ctx_id_t context_handle, const gss_OID desired_object, gss_buffer_set_t * data_set) { OM_uint32 major_status = GSS_S_COMPLETE; OM_uint32 local_minor_status; gss_ctx_id_desc * context = NULL; int found_index; int chain_index; int cert_count; X509_EXTENSION * extension; X509 * cert = NULL; STACK_OF(X509) * cert_chain = NULL; ASN1_OBJECT * asn1_desired_obj = NULL; ASN1_OCTET_STRING * asn1_oct_string; gss_buffer_desc data_set_buffer = GSS_C_EMPTY_BUFFER; globus_result_t local_result = GLOBUS_SUCCESS; unsigned char * tmp_ptr; static char * _function_name_ = "gss_inquire_sec_context_by_oid"; GLOBUS_I_GSI_GSSAPI_DEBUG_ENTER; /* parameter checking goes here */ if(minor_status == NULL) { GLOBUS_GSI_GSSAPI_ERROR_RESULT( minor_status, GLOBUS_GSI_GSSAPI_ERROR_BAD_ARGUMENT, (_GGSL("Invalid minor_status (NULL) passed to function"))); major_status = GSS_S_FAILURE; goto exit; } if(context_handle == GSS_C_NO_CONTEXT) { GLOBUS_GSI_GSSAPI_ERROR_RESULT( minor_status, GLOBUS_GSI_GSSAPI_ERROR_BAD_ARGUMENT, (_GGSL("Invalid context_handle passed to function"))); major_status = GSS_S_FAILURE; goto exit; } *minor_status = (OM_uint32) GLOBUS_SUCCESS; context = (gss_ctx_id_desc *) context_handle; if(desired_object == GSS_C_NO_OID) { GLOBUS_GSI_GSSAPI_ERROR_RESULT( minor_status, GLOBUS_GSI_GSSAPI_ERROR_BAD_ARGUMENT, (_GGSL("Invalid desired_object passed to function"))); major_status = GSS_S_FAILURE; goto exit; } if(data_set == NULL) { GLOBUS_GSI_GSSAPI_ERROR_RESULT( minor_status, GLOBUS_GSI_GSSAPI_ERROR_BAD_ARGUMENT, (_GGSL("Invalid data_set (NULL) passed to function"))); major_status = GSS_S_FAILURE; goto exit; } *data_set = NULL; /* lock the context mutex */ globus_mutex_lock(&context->mutex); local_result = globus_gsi_callback_get_cert_depth(context->callback_data, &cert_count); if(local_result != GLOBUS_SUCCESS) { GLOBUS_GSI_GSSAPI_ERROR_CHAIN_RESULT( minor_status, local_result, GLOBUS_GSI_GSSAPI_ERROR_WITH_CALLBACK_DATA); major_status = GSS_S_FAILURE; goto unlock_exit; } if(cert_count == 0) { goto unlock_exit; } major_status = gss_create_empty_buffer_set(&local_minor_status, data_set); if(GSS_ERROR(major_status)) { GLOBUS_GSI_GSSAPI_ERROR_CHAIN_RESULT( minor_status, local_minor_status, GLOBUS_GSI_GSSAPI_ERROR_WITH_BUFFER); goto unlock_exit; } local_result = globus_gsi_callback_get_cert_chain( context->callback_data, &cert_chain); if(local_result != GLOBUS_SUCCESS) { GLOBUS_GSI_GSSAPI_ERROR_CHAIN_RESULT( minor_status, local_result, GLOBUS_GSI_GSSAPI_ERROR_WITH_CALLBACK_DATA); major_status = GSS_S_FAILURE; cert_chain = NULL; goto unlock_exit; } if(((gss_OID_desc *)desired_object)->length != gss_ext_x509_cert_chain_oid->length || memcmp(((gss_OID_desc *)desired_object)->elements, gss_ext_x509_cert_chain_oid->elements, gss_ext_x509_cert_chain_oid->length)) { /* figure out what object was asked for */ asn1_desired_obj = ASN1_OBJECT_new(); if(!asn1_desired_obj) { GLOBUS_GSI_GSSAPI_OPENSSL_ERROR_RESULT( minor_status, GLOBUS_GSI_GSSAPI_ERROR_WITH_OPENSSL, (_GGSL("Couldn't create ASN1 object"))); major_status = GSS_S_FAILURE; goto unlock_exit; } asn1_desired_obj->length = ((gss_OID_desc *)desired_object)->length; asn1_desired_obj->data = ((gss_OID_desc *)desired_object)->elements; found_index = -1; for(chain_index = 0; chain_index < cert_count; chain_index++) { cert = sk_X509_value(cert_chain, chain_index); data_set_buffer.value = NULL; data_set_buffer.length = 0; found_index = X509_get_ext_by_OBJ(cert, asn1_desired_obj, found_index); if(found_index >= 0) { extension = X509_get_ext(cert, found_index); if(!extension) { GLOBUS_GSI_GSSAPI_OPENSSL_ERROR_RESULT( minor_status, GLOBUS_GSI_GSSAPI_ERROR_WITH_OPENSSL, (_GGSL("Couldn't get extension at index %d " "from cert in credential."), found_index)); major_status = GSS_S_FAILURE; goto unlock_exit; } asn1_oct_string = X509_EXTENSION_get_data(extension); if(!asn1_oct_string) { GLOBUS_GSI_GSSAPI_OPENSSL_ERROR_RESULT( minor_status, GLOBUS_GSI_GSSAPI_ERROR_WITH_OPENSSL, (_GGSL("Couldn't get cert extension in the form of an " "ASN1 octet string."))); major_status = GSS_S_FAILURE; goto unlock_exit; } asn1_oct_string = ASN1_OCTET_STRING_dup(asn1_oct_string); if(!asn1_oct_string) { GLOBUS_GSI_GSSAPI_OPENSSL_ERROR_RESULT( minor_status, GLOBUS_GSI_GSSAPI_ERROR_WITH_OPENSSL, (_GGSL("Failed to make copy of extension data"))); major_status = GSS_S_FAILURE; goto unlock_exit; } data_set_buffer.value = asn1_oct_string->data; data_set_buffer.length = asn1_oct_string->length; OPENSSL_free(asn1_oct_string); major_status = gss_add_buffer_set_member( &local_minor_status, &data_set_buffer, data_set); if(GSS_ERROR(major_status)) { GLOBUS_GSI_GSSAPI_ERROR_CHAIN_RESULT( minor_status, local_minor_status, GLOBUS_GSI_GSSAPI_ERROR_WITH_BUFFER); goto unlock_exit; } } } } else { for(chain_index = 0; chain_index < cert_count; chain_index++) { int certlen; cert = sk_X509_value(cert_chain, chain_index); certlen = i2d_X509(cert, NULL); data_set_buffer.length = certlen; if (certlen < 0) { GLOBUS_GSI_GSSAPI_OPENSSL_ERROR_RESULT( minor_status, GLOBUS_GSI_GSSAPI_ERROR_WITH_OPENSSL, (_GGSL("Failed to serialize certificate"))); major_status = GSS_S_FAILURE; goto unlock_exit; } tmp_ptr = realloc(data_set_buffer.value, data_set_buffer.length); if(tmp_ptr == NULL) { GLOBUS_GSI_GSSAPI_MALLOC_ERROR(minor_status); major_status = GSS_S_FAILURE; goto unlock_exit; } data_set_buffer.value = tmp_ptr; if(i2d_X509(cert,&tmp_ptr) < 0) { free(data_set_buffer.value); GLOBUS_GSI_GSSAPI_OPENSSL_ERROR_RESULT( minor_status, GLOBUS_GSI_GSSAPI_ERROR_WITH_OPENSSL, (_GGSL("Failed to serialize certificate"))); major_status = GSS_S_FAILURE; goto unlock_exit; } major_status = gss_add_buffer_set_member( &local_minor_status, &data_set_buffer, data_set); if(GSS_ERROR(major_status)) { GLOBUS_GSI_GSSAPI_ERROR_CHAIN_RESULT( minor_status, local_minor_status, GLOBUS_GSI_GSSAPI_ERROR_WITH_BUFFER); goto unlock_exit; } } if(data_set_buffer.value != NULL) { free(data_set_buffer.value); } } unlock_exit: /* unlock the context mutex */ globus_mutex_unlock(&context->mutex); exit: if (asn1_desired_obj != NULL) { ASN1_OBJECT_free(asn1_desired_obj); } if(cert_chain != NULL) { sk_X509_pop_free(cert_chain, X509_free); } GLOBUS_I_GSI_GSSAPI_DEBUG_EXIT; return major_status; }