/* * Note: this file originally auto-generated by mib2c using * version : 14170 $ of $ * * $Id:$ */ /* standard Net-SNMP includes */ #include #include #include /* include our parent header */ #include "sessionTable.h" #include "sessionTable_data_access.h" #include "ppp.h" #include "ipdb.h" /** @ingroup interface * @addtogroup data_access data_access: Routines to access data * * These routines are used to locate the data used to satisfy * requests. * * @{ */ /********************************************************************** ********************************************************************** *** *** Table sessionTable *** ********************************************************************** **********************************************************************/ /* * ACCEL-PPP-MIB::sessionTable is subid 1 of accelPPPSessions. * Its status is Current. * OID: .1.3.6.1.4.1.8072.100.2.1, length: 10 */ /** * initialization for sessionTable data access * * This function is called during startup to allow you to * allocate any resources you need for the data table. * * @param sessionTable_reg * Pointer to sessionTable_registration * * @retval MFD_SUCCESS : success. * @retval MFD_ERROR : unrecoverable error. */ int sessionTable_init_data(sessionTable_registration * sessionTable_reg) { DEBUGMSGTL(("verbose:sessionTable:sessionTable_init_data","called\n")); /* * TODO:303:o: Initialize sessionTable data-> */ /* *************************************************** *** START EXAMPLE CODE *** ***---------------------------------------------***/ /* * if you are the sole writer for the file, you could * open it here. However, as stated earlier, we are assuming * the worst case, which in this case means that the file is * written to by someone else, and might not even exist when * we start up. So we can't do anything here. */ /* ***---------------------------------------------*** *** END EXAMPLE CODE *** ***************************************************/ return MFD_SUCCESS; } /* sessionTable_init_data */ /** * container overview * */ /** * container initialization * * @param container_ptr_ptr A pointer to a container pointer. If you * create a custom container, use this parameter to return it * to the MFD helper. If set to NULL, the MFD helper will * allocate a container for you. * * This function is called at startup to allow you to customize certain * aspects of the access method. For the most part, it is for advanced * users. The default code should suffice for most cases. If no custom * container is allocated, the MFD code will create one for your. * * @remark * This would also be a good place to do any initialization needed * for you data source. For example, opening a connection to another * process that will supply the data, opening a database, etc. */ void sessionTable_container_init(netsnmp_container **container_ptr_ptr, netsnmp_cache *cache) { DEBUGMSGTL(("verbose:sessionTable:sessionTable_container_init","called\n")); if (NULL == container_ptr_ptr) { snmp_log(LOG_ERR,"bad container param to sessionTable_container_init\n"); return; } /* * For advanced users, you can use a custom container. If you * do not create one, one will be created for you. */ *container_ptr_ptr = NULL; if (NULL == cache) { snmp_log(LOG_ERR,"bad cache param to sessionTable_container_init\n"); return; } /* * TODO:345:A: Set up sessionTable cache properties. * * Also for advanced users, you can set parameters for the * cache. Do not change the magic pointer, as it is used * by the MFD helper. To completely disable caching, set * cache->enabled to 0. */ cache->timeout = -1; /* seconds */ } /* sessionTable_container_init */ /** * container shutdown * * @param container_ptr A pointer to the container. * * This function is called at shutdown to allow you to customize certain * aspects of the access method. For the most part, it is for advanced * users. The default code should suffice for most cases. * * This function is called before sessionTable_container_free(). * * @remark * This would also be a good place to do any cleanup needed * for you data source. For example, closing a connection to another * process that supplied the data, closing a database, etc. */ void sessionTable_container_shutdown(netsnmp_container *container_ptr) { DEBUGMSGTL(("verbose:sessionTable:sessionTable_container_shutdown","called\n")); if (NULL == container_ptr) { snmp_log(LOG_ERR,"bad params to sessionTable_container_shutdown\n"); return; } } /* sessionTable_container_shutdown */ /** * load initial data * * TODO:350:M: Implement sessionTable data load * * @param container container to which items should be inserted * * @retval MFD_SUCCESS : success. * @retval MFD_RESOURCE_UNAVAILABLE : Can't access data source * @retval MFD_ERROR : other error. * * This function is called to load the index(es) (and data, optionally) * for the every row in the data set. * * @remark * While loading the data, the only important thing is the indexes. * If access to your data is cheap/fast (e.g. you have a pointer to a * structure in memory), it would make sense to update the data here. * If, however, the accessing the data invovles more work (e.g. parsing * some other existing data, or peforming calculations to derive the data), * then you can limit yourself to setting the indexes and saving any * information you will need later. Then use the saved information in * sessionTable_row_prep() for populating data-> * * @note * If you need consistency between rows (like you want statistics * for each row to be from the same time frame), you should set all * data here. * */ int sessionTable_container_load(netsnmp_container *container) { sessionTable_rowreq_ctx *rowreq_ctx; size_t count = 0; struct ppp_t *ppp; time_t t; time(&t); DEBUGMSGTL(("verbose:sessionTable:sessionTable_container_load","called\n")); pthread_rwlock_rdlock(&ppp_lock); list_for_each_entry(ppp, &ppp_list, entry) { rowreq_ctx = sessionTable_allocate_rowreq_ctx(NULL, NULL); if (NULL == rowreq_ctx) { pthread_rwlock_unlock(&ppp_lock); snmp_log(LOG_ERR, "memory allocation failed\n"); return MFD_RESOURCE_UNAVAILABLE; } if(MFD_SUCCESS != sessionTable_indexes_set(rowreq_ctx , ppp->sessionid, PPP_SESSIONID_LEN )) { snmp_log(LOG_ERR,"error setting index while loading " "sessionTable data->\n"); sessionTable_release_rowreq_ctx(rowreq_ctx); continue; } strcpy(rowreq_ctx->data->ifname, ppp->ifname); if (ppp->username) rowreq_ctx->data->username = strdup(ppp->username); else ppp->username = strdup(""); rowreq_ctx->data->peer_addr = ppp->ipv4 ? ppp->ipv4->peer_addr : 0; rowreq_ctx->data->type = ppp->ctrl->type; rowreq_ctx->data->state = ppp->state; rowreq_ctx->data->uptime = (ppp->stop_time ? ppp->stop_time : t) - ppp->start_time; rowreq_ctx->data->calling_sid = strdup(ppp->ctrl->calling_station_id); rowreq_ctx->data->called_sid = strdup(ppp->ctrl->called_station_id); CONTAINER_INSERT(container, rowreq_ctx); ++count; } pthread_rwlock_unlock(&ppp_lock); DEBUGMSGT(("verbose:sessionTable:sessionTable_container_load", "inserted %d records\n", count)); return MFD_SUCCESS; } /* sessionTable_container_load */ /** * container clean up * * @param container container with all current items * * This optional callback is called prior to all * item's being removed from the container. If you * need to do any processing before that, do it here. * * @note * The MFD helper will take care of releasing all the row contexts. * If you did not pass a data context pointer when allocating * the rowreq context, the one that was allocated will be deleted. * If you did pass one in, it will not be deleted and that memory * is your responsibility. * */ void sessionTable_container_free(netsnmp_container *container) { DEBUGMSGTL(("verbose:sessionTable:sessionTable_container_free","called\n")); /* * TODO:380:M: Free sessionTable container data-> */ } /* sessionTable_container_free */ /** * prepare row for processing. * * When the agent has located the row for a request, this function is * called to prepare the row for processing. If you fully populated * the data context during the index setup phase, you may not need to * do anything. * * @param rowreq_ctx pointer to a context. * * @retval MFD_SUCCESS : success. * @retval MFD_ERROR : other error. */ int sessionTable_row_prep( sessionTable_rowreq_ctx *rowreq_ctx) { DEBUGMSGTL(("verbose:sessionTable:sessionTable_row_prep","called\n")); netsnmp_assert(NULL != rowreq_ctx); /* * TODO:390:o: Prepare row for request. * If populating row data was delayed, this is the place to * fill in the row for this request. */ return MFD_SUCCESS; } /* sessionTable_row_prep */ /** @} */