diff options
Diffstat (limited to 'accel-pppd/extra/net-snmp/sessionTable_data_access.c')
| -rw-r--r-- | accel-pppd/extra/net-snmp/sessionTable_data_access.c | 304 |
1 files changed, 304 insertions, 0 deletions
diff --git a/accel-pppd/extra/net-snmp/sessionTable_data_access.c b/accel-pppd/extra/net-snmp/sessionTable_data_access.c new file mode 100644 index 00000000..847197af --- /dev/null +++ b/accel-pppd/extra/net-snmp/sessionTable_data_access.c @@ -0,0 +1,304 @@ +/* + * Note: this file originally auto-generated by mib2c using + * version : 14170 $ of $ + * + * $Id:$ + */ +/* standard Net-SNMP includes */ +#include <net-snmp/net-snmp-config.h> +#include <net-snmp/net-snmp-includes.h> +#include <net-snmp/agent/net-snmp-agent-includes.h> + +/* include our parent header */ +#include "sessionTable.h" + + +#include "sessionTable_data_access.h" + +#include "ppp.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->peer_ipaddr; + 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 */ + +/** @} */ |