| /* |
| * Note: this file originally auto-generated by mib2c using |
| * version : 1.17 $ of : mfd-data-access.m2c,v $ |
| * |
| * $Id$ |
| */ |
| /* |
| * 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 "ipv4InterfaceTable.h" |
| |
| |
| #include "ipv4InterfaceTable_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 ipv4InterfaceTable |
| *** |
| ********************************************************************** |
| **********************************************************************/ |
| /* |
| * IP-MIB::ipv4InterfaceTable is subid 28 of ip. |
| * Its status is Current. |
| * OID: .1.3.6.1.2.1.4.28, length: 8 |
| */ |
| |
| /** |
| * initialization for ipv4InterfaceTable data access |
| * |
| * This function is called during startup to allow you to |
| * allocate any resources you need for the data table. |
| * |
| * @param ipv4InterfaceTable_reg |
| * Pointer to ipv4InterfaceTable_registration |
| * |
| * @retval MFD_SUCCESS : success. |
| * @retval MFD_ERROR : unrecoverable error. |
| */ |
| int |
| ipv4InterfaceTable_init_data(ipv4InterfaceTable_registration * |
| ipv4InterfaceTable_reg) |
| { |
| DEBUGMSGTL(("verbose:ipv4InterfaceTable:ipv4InterfaceTable_init_data", |
| "called\n")); |
| |
| /* |
| * TODO:303:o: Initialize ipv4InterfaceTable data. |
| */ |
| |
| return MFD_SUCCESS; |
| } /* ipv4InterfaceTable_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 |
| ipv4InterfaceTable_container_init(netsnmp_container **container_ptr_ptr) |
| { |
| DEBUGMSGTL(("verbose:ipv4InterfaceTable:ipv4InterfaceTable_container_init", "called\n")); |
| |
| if (NULL == container_ptr_ptr) { |
| snmp_log(LOG_ERR, |
| "bad container param to ipv4InterfaceTable_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. |
| */ |
| } /* ipv4InterfaceTable_container_init */ |
| |
| |
| /** |
| * @internal |
| * determine if we want a ifTable row in our container |
| */ |
| void |
| ipv4InterfaceTable_check_entry_for_updates(const ifTable_rowreq_ctx * |
| ift_rrc, |
| netsnmp_interface_entry *entry) |
| { |
| netsnmp_container *c = ipv4InterfaceTable_container_get(); |
| ifTable_rowreq_ctx *ip4if_rrc; |
| int changed = 0; |
| |
| DEBUGMSGTL(("verbose:ipv4InterfaceTable:check_entry_for_updates", |
| "called\n")); |
| |
| /* |
| * do we have a corresponding row? |
| */ |
| ip4if_rrc = CONTAINER_FIND(c, ift_rrc); |
| if (NULL == ip4if_rrc) { |
| /* |
| * no corresponding row. should we have one? |
| */ |
| if ((NULL != entry) && |
| (entry->ns_flags & NETSNMP_INTERFACE_FLAGS_HAS_IPV4)) { |
| /* |
| * yes. |
| */ |
| DEBUGMSGTL(("ipv4InterfaceTable:check_entry_for_updates", |
| "inserted row for %" 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_IPV4))) { |
| /* |
| * no |
| */ |
| DEBUGMSGTL(("ipv4InterfaceTable:check_entry_for_updates", |
| "removed row for %" NETSNMP_PRIo "d\n", |
| ift_rrc->data.ifentry->index)); |
| CONTAINER_REMOVE(c, ift_rrc); |
| changed = 1; |
| } else { |
| /* |
| * still applicable. anything changed? |
| */ |
| if ((entry->retransmit_v4 != |
| ift_rrc->data.ifentry->retransmit_v4) || |
| (entry->reasm_max_v4 != ift_rrc->data.ifentry->reasm_max_v4)) { |
| DEBUGMSGTL(("ipv4InterfaceTable:check_entry_for_updates", |
| "row changed for %" NETSNMP_PRIo "d\n", |
| ift_rrc->data.ifentry->index)); |
| changed = 1; |
| } |
| } |
| } |
| |
| /* |
| * if something changed, update table last changed |
| */ |
| if (changed) |
| ipv4InterfaceTable_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 ipv4InterfaceTable_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 |
| ipv4InterfaceTable_container_shutdown(netsnmp_container *container_ptr) |
| { |
| DEBUGMSGTL(("verbose:ipv4InterfaceTable:ipv4InterfaceTable_container_shutdown", "called\n")); |
| |
| if (NULL == container_ptr) { |
| snmp_log(LOG_ERR, |
| "bad params to ipv4InterfaceTable_container_shutdown\n"); |
| return; |
| } |
| |
| } /* ipv4InterfaceTable_container_shutdown */ |
| |
| /** |
| * load initial data |
| * |
| * TODO:350:M: Implement ipv4InterfaceTable 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 |
| * ipv4InterfaceTable_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 |
| ipv4InterfaceTable_container_load(netsnmp_container *container) |
| { |
| DEBUGMSGT(("verbose:ipv4InterfaceTable:ipv4InterfaceTable_container_load", "illegal call!\n")); |
| |
| return MFD_ERROR; |
| } /* ipv4InterfaceTable_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 |
| ipv4InterfaceTable_container_free(netsnmp_container *container) |
| { |
| DEBUGMSGTL(("verbose:ipv4InterfaceTable:ipv4InterfaceTable_container_free", "called\n")); |
| |
| /* |
| * TODO:380:M: Free ipv4InterfaceTable container data. |
| */ |
| } /* ipv4InterfaceTable_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 |
| ipv4InterfaceTable_row_prep(ipv4InterfaceTable_rowreq_ctx * rowreq_ctx) |
| { |
| DEBUGMSGTL(("verbose:ipv4InterfaceTable:ipv4InterfaceTable_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; |
| } /* ipv4InterfaceTable_row_prep */ |
| |
| /** @} */ |
