/* Features Request packet receive. */ lagopus_result_t ofp_features_request_handle(struct channel *channel, struct pbuf *pbuf, struct ofp_header *xid_header, struct ofp_error *error) { lagopus_result_t ret = LAGOPUS_RESULT_ANY_FAILURES; struct pbuf *send_pbuf = NULL; /* Parse packet. */ ret = ofp_header_handle(channel, pbuf, error); if (ret == LAGOPUS_RESULT_OK) { /* Features request reply. */ ret = ofp_features_reply_create(channel, &send_pbuf, xid_header); if (ret == LAGOPUS_RESULT_OK) { features_request_trace(xid_header); channel_send_packet(channel, send_pbuf); ret = LAGOPUS_RESULT_OK; } else { lagopus_msg_warning("FAILED (%s).\n", lagopus_error_get_string(ret)); } } if (ret != LAGOPUS_RESULT_OK && send_pbuf != NULL) { channel_pbuf_list_unget(channel, send_pbuf); } return ret; }
/* Experimenter packet receive. */ lagopus_result_t ofp_experimenter_request_handle(struct channel *channel, struct pbuf *pbuf, struct ofp_header *xid_header) { lagopus_result_t ret = LAGOPUS_RESULT_ANY_FAILURES; struct pbuf *send_pbuf = NULL; struct ofp_experimenter_header exper_req; if (channel != NULL && pbuf != NULL && xid_header != NULL) { /* Parse packet. */ ret = ofp_experimenter_header_decode(pbuf, &exper_req); if (ret == LAGOPUS_RESULT_OK) { /* Experimenter request reply. */ ret = ofp_experimenter_reply_create(channel, &send_pbuf, xid_header, &exper_req); if (ret == LAGOPUS_RESULT_OK) { channel_send_packet(channel, send_pbuf); ret = LAGOPUS_RESULT_OK; } else { lagopus_msg_warning("FAILED (%s).\n", lagopus_error_get_string(ret)); } } else { lagopus_msg_warning("FAILED (%s).\n", lagopus_error_get_string(ret)); ret = LAGOPUS_RESULT_OFP_ERROR; } if (ret != LAGOPUS_RESULT_OK && send_pbuf != NULL) { channel_pbuf_list_unget(channel, send_pbuf); } } else { ret = LAGOPUS_RESULT_INVALID_ARGS; } return ret; }
void window_out_commit( window_t* window) { debug_print("window_out_commit()\n"); window_lock(window); if (!window->buffer->size) { window->size = 0; window->head = 0; window->tail = 0; } else { window->size = MIN(window->max_size, window->buffer->size); window->head = queue_head(window->buffer); window->tail = window_get(window, window->size-1); //printf("head: %p, tail: %p\n", window->head, window->tail); if (!window->tail || !window->head) { return; } queue_node_t* node = window->head; packet_t* packet = (packet_t*) node->data; while(node != window->tail) { packet = (packet_t*) node->data; if (!packet->transmission_time) { channel_send_packet(packet); } node = node->next; } if (node == window->tail) { if (!packet->transmission_time) { channel_send_packet(packet); } } } window_unlock(window); success_print("window_out_commit() succeed\n"); }
lagopus_result_t ofp_get_async_request_handle(struct channel *channel, struct pbuf *pbuf, struct ofp_header *xid_header, struct ofp_error *error) { lagopus_result_t ret = LAGOPUS_RESULT_ANY_FAILURES; struct pbuf *send_pbuf = NULL; /* check params */ if (channel != NULL && pbuf != NULL && xid_header != NULL && error != NULL) { ret = pbuf_plen_check(pbuf, xid_header->length); if (ret == LAGOPUS_RESULT_OK) { /* Parse packet. */ ret = ofp_header_handle(channel, pbuf, error); if (ret == LAGOPUS_RESULT_OK) { /* dump trace. */ get_async_request_trace(xid_header); /* Reply send.*/ ret = ofp_get_async_reply_create(channel, &send_pbuf, xid_header); if (ret == LAGOPUS_RESULT_OK) { channel_send_packet(channel, send_pbuf); } else { lagopus_msg_warning("FAILED (%s).\n", lagopus_error_get_string(ret)); } } else { lagopus_msg_warning("FAILED (%s).\n", lagopus_error_get_string(ret)); ofp_error_set(error, OFPET_BAD_REQUEST, OFPBRC_BAD_LEN); ret = LAGOPUS_RESULT_OFP_ERROR; } if (ret != LAGOPUS_RESULT_OK && send_pbuf != NULL) { channel_pbuf_list_unget(channel, send_pbuf); } } else { lagopus_msg_warning("bad length.\n"); ofp_error_set(error, OFPET_BAD_REQUEST, OFPBRC_BAD_LEN); ret = LAGOPUS_RESULT_OFP_ERROR; } } else { ret = LAGOPUS_RESULT_INVALID_ARGS; } return ret; }
static lagopus_result_t ofp_write_channel(struct channel *channel, struct pbuf *pbuf) { lagopus_result_t ret = LAGOPUS_RESULT_OK; struct pbuf *send_pbuf = NULL; uint16_t len = 0; if (channel != NULL && pbuf != NULL) { ret = pbuf_length_get(pbuf, &len); if (ret == LAGOPUS_RESULT_OK) { send_pbuf = channel_pbuf_list_get(channel, (size_t) len); if (send_pbuf != NULL) { /* Copy pbuf. */ ret = pbuf_copy(send_pbuf, pbuf); if (ret == LAGOPUS_RESULT_OK) { ret = ofp_header_packet_set(channel, send_pbuf); if (ret == LAGOPUS_RESULT_OK) { channel_send_packet(channel, send_pbuf); ret = LAGOPUS_RESULT_OK; } else { lagopus_msg_warning("FAILED (%s).\n", lagopus_error_get_string(ret)); } } else { lagopus_msg_warning("FAILED (%s).\n", lagopus_error_get_string(ret)); } } else { lagopus_msg_warning("Can't allocate pbuf.\n"); ret = LAGOPUS_RESULT_NO_MEMORY; } } else { lagopus_msg_warning("FAILED (%s).\n", lagopus_error_get_string(ret)); } if (ret != LAGOPUS_RESULT_OK && send_pbuf != NULL) { channel_pbuf_list_unget(channel, send_pbuf); } } else { ret = LAGOPUS_RESULT_INVALID_ARGS; } return ret; }
lagopus_result_t ofp_role_request_handle(struct channel *channel, struct pbuf *pbuf, struct ofp_header *xid_header, struct ofp_error *error) { lagopus_result_t ret = LAGOPUS_RESULT_ANY_FAILURES; struct ofp_role_request role_request; struct ofp_role_request modified_role_request; struct pbuf *send_pbuf = NULL; uint64_t dpid; if (channel != NULL && pbuf != NULL && xid_header != NULL && error != NULL) { /* Parse packet. */ ret = ofp_role_request_decode(pbuf, &role_request); if (ret == LAGOPUS_RESULT_OK) { /* dump trace. */ role_request_trace(&role_request); ret = role_check(role_request.role, error); if (ret == LAGOPUS_RESULT_OK) { dpid = channel_dpid_get(channel); if (ofp_role_generation_id_check(dpid, role_request.role, role_request.generation_id) == true) { /* copy role request. */ modified_role_request = role_request; ret = ofp_role_channel_update(channel, &modified_role_request, dpid); if (ret == LAGOPUS_RESULT_OK) { /* Reply send.*/ ret = ofp_role_reply_create(channel, &send_pbuf, xid_header, &modified_role_request); if (ret == LAGOPUS_RESULT_OK) { channel_send_packet(channel, send_pbuf); } else { lagopus_msg_warning("FAILED (%s).\n", lagopus_error_get_string(ret)); } } else { lagopus_msg_warning("FAILED (%s).\n", lagopus_error_get_string(ret)); } } else { lagopus_msg_warning("bad generation_id.\n"); ofp_error_set(error, OFPET_ROLE_REQUEST_FAILED, OFPRRFC_STALE); ret = LAGOPUS_RESULT_OFP_ERROR; } if (ret != LAGOPUS_RESULT_OK && send_pbuf != NULL) { channel_pbuf_list_unget(channel, send_pbuf); } } } else { lagopus_msg_warning("FAILED (%s).\n", lagopus_error_get_string(ret)); ofp_error_set(error, OFPET_BAD_REQUEST, OFPBRC_BAD_LEN); ret = LAGOPUS_RESULT_OFP_ERROR; } } else { ret = LAGOPUS_RESULT_INVALID_ARGS; } return ret; }