/* * Note: this file originally auto-generated by mib2c using * version : 1.17 $ of : mfd-data-access.m2c,v $ * * $Id$ */ /* * standard Net-SNMP includes */ #include #include #include /* * include our parent header */ #include "ipv6InterfaceTable.h" #include "ipv6InterfaceTable_data_access.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 ipv6InterfaceTable *** ********************************************************************** **********************************************************************/ /* * IP-MIB::ipv6InterfaceTable is subid 30 of ip. * Its status is Current. * OID: .1.3.6.1.2.1.4.30, length: 8 */ /** * initialization for ipv6InterfaceTable data access * * This function is called during startup to allow you to * allocate any resources you need for the data table. * * @param ipv6InterfaceTable_reg * Pointer to ipv6InterfaceTable_registration * * @retval MFD_SUCCESS : success. * @retval MFD_ERROR : unrecoverable error. */ int ipv6InterfaceTable_init_data(ipv6InterfaceTable_registration * ipv6InterfaceTable_reg) { DEBUGMSGTL(("verbose:ipv6InterfaceTable:ipv6InterfaceTable_init_data", "called\n")); /* * TODO:303:o: Initialize ipv6InterfaceTable data. */ return MFD_SUCCESS; } /* ipv6InterfaceTable_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 ipv6InterfaceTable_container_init(netsnmp_container **container_ptr_ptr) { DEBUGMSGTL(("verbose:ipv6InterfaceTable:ipv6InterfaceTable_container_init", "called\n")); if (NULL == container_ptr_ptr) { snmp_log(LOG_ERR, "bad container param to ipv6InterfaceTable_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; } /* ipv6InterfaceTable_container_init */ /** * @internal * determine if we want a ifTable row in our container */ void ipv6InterfaceTable_check_entry_for_updates(const ifTable_rowreq_ctx * ift_rrc, netsnmp_interface_entry *entry) { netsnmp_container *c = ipv6InterfaceTable_container_get(); ifTable_rowreq_ctx *ip6if_rrc; int changed = 0; DEBUGMSGTL(("verbose:ipv6InterfaceTable:check_entry_for_updates", "called\n")); /* * do we have a corresponding row? */ ip6if_rrc = CONTAINER_FIND(c, ift_rrc); if (NULL == ip6if_rrc) { /* * no corresponding row. should we have one? */ if ((NULL != entry) && (entry->ns_flags & NETSNMP_INTERFACE_FLAGS_HAS_IPV6)) { /* * yes. */ DEBUGMSGTL(("ipv6InterfaceTable:check_entry_for_updates", "inserted row for index %" NETSNMP_PRIo "d\n", entry->index)); CONTAINER_INSERT(c, ift_rrc); changed = 1; } } else { /* * found corresponding row. is it still applicable? */ if ((NULL == entry) || (0 == (entry->ns_flags & NETSNMP_INTERFACE_FLAGS_HAS_IPV6))) { /* * no */ DEBUGMSGTL(("ipv6InterfaceTable:check_entry_for_updates", "removed row for index %" NETSNMP_PRIo "d\n", ift_rrc->data.ifentry->index)); CONTAINER_REMOVE(c, ift_rrc); changed = 1; } else { /* * still applicable. anything changed? */ if (/** retransmit */ ((entry-> ns_flags & NETSNMP_INTERFACE_FLAGS_HAS_V6_RETRANSMIT) && (entry->retransmit_v6 != ift_rrc->data.ifentry->retransmit_v6)) || /** reasm */ ((entry-> ns_flags & NETSNMP_INTERFACE_FLAGS_HAS_V6_REASMMAX) && (entry->reasm_max_v6 != ift_rrc->data.ifentry->reasm_max_v6)) || /** reachable time */ ((entry-> ns_flags & NETSNMP_INTERFACE_FLAGS_HAS_V6_REACHABLE) && (entry->reachable_time != ift_rrc->data.ifentry->reachable_time)) || /** if id */ ((entry->ns_flags & NETSNMP_INTERFACE_FLAGS_HAS_V6_IFID) && ((entry->v6_if_id_len != ift_rrc->data.ifentry->v6_if_id_len) || (0 != memcmp(entry->v6_if_id, ift_rrc->data.ifentry->v6_if_id, entry->v6_if_id_len)))) || /** forwarding */ ((entry-> ns_flags & NETSNMP_INTERFACE_FLAGS_HAS_V6_FORWARDING) && (entry->forwarding_v6 != ift_rrc->data.ifentry->forwarding_v6))) { DEBUGMSGTL(("ipv6InterfaceTable:check_entry_for_updates", "row changed for index %" NETSNMP_PRIo "d\n", ift_rrc->data.ifentry->index)); changed = 1; } } } /* * if something changed, update table last changed */ if (changed) ipv6InterfaceTable_lastChange_set(netsnmp_get_agent_uptime()); } /** * 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 ipv6InterfaceTable_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 ipv6InterfaceTable_container_shutdown(netsnmp_container *container_ptr) { DEBUGMSGTL(("verbose:ipv6InterfaceTable:ipv6InterfaceTable_container_shutdown", "called\n")); if (NULL == container_ptr) { snmp_log(LOG_ERR, "bad params to ipv6InterfaceTable_container_shutdown\n"); return; } } /* ipv6InterfaceTable_container_shutdown */ /** * load initial data * * TODO:350:M: Implement ipv6InterfaceTable 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 * ipv6InterfaceTable_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 ipv6InterfaceTable_container_load(netsnmp_container *container) { ipv6InterfaceTable_rowreq_ctx *rowreq_ctx; size_t count = 0; /* * temporary storage for index values */ /* * ipv6InterfaceIfIndex(1)/InterfaceIndex/ASN_INTEGER/long(long)//l/a/w/e/R/d/H */ long ipv6InterfaceIfIndex; DEBUGMSGTL(("verbose:ipv6InterfaceTable:ipv6InterfaceTable_container_load", "called\n")); /* * TODO:351:M: |-> Load/update data in the ipv6InterfaceTable container. * loop over your ipv6InterfaceTable data, allocate a rowreq context, * set the index(es) [and data, optionally] and insert into * the container. */ while (1) { /* * check for end of data; bail out if there is no more data */ if (1) break; /* * TODO:352:M: | |-> set indexes in new ipv6InterfaceTable rowreq context. * data context will be set from the param (unless NULL, * in which case a new data context will be allocated) */ rowreq_ctx = ipv6InterfaceTable_allocate_rowreq_ctx(NULL); if (NULL == rowreq_ctx) { snmp_log(LOG_ERR, "memory allocation failed\n"); return MFD_RESOURCE_UNAVAILABLE; } if (MFD_SUCCESS != ipv6InterfaceTable_indexes_set(rowreq_ctx, ipv6InterfaceIfIndex)) { snmp_log(LOG_ERR, "error setting index while loading " "ipv6InterfaceTable data.\n"); ipv6InterfaceTable_release_rowreq_ctx(rowreq_ctx); continue; } /* * TODO:352:r: | |-> populate ipv6InterfaceTable data context. * Populate data context here. (optionally, delay until row prep) */ /* * non-TRANSIENT data: no need to copy. set pointer to data */ /* * insert into table container */ CONTAINER_INSERT(container, rowreq_ctx); ++count; } DEBUGMSGT(("verbose:ipv6InterfaceTable:ipv6InterfaceTable_container_load", "inserted %d records\n", (int)count)); return MFD_SUCCESS; } /* ipv6InterfaceTable_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. * */ void ipv6InterfaceTable_container_free(netsnmp_container *container) { DEBUGMSGTL(("verbose:ipv6InterfaceTable:ipv6InterfaceTable_container_free", "called\n")); /* * TODO:380:M: Free ipv6InterfaceTable container data. */ } /* ipv6InterfaceTable_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 ipv6InterfaceTable_row_prep(ipv6InterfaceTable_rowreq_ctx * rowreq_ctx) { DEBUGMSGTL(("verbose:ipv6InterfaceTable:ipv6InterfaceTable_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; } /* ipv6InterfaceTable_row_prep */ /** @} */