diff options
Diffstat (limited to 'agent/mibgroup/if-mib/ifTable/ifTable_interface.c')
| -rw-r--r-- | agent/mibgroup/if-mib/ifTable/ifTable_interface.c | 2019 |
1 files changed, 2019 insertions, 0 deletions
diff --git a/agent/mibgroup/if-mib/ifTable/ifTable_interface.c b/agent/mibgroup/if-mib/ifTable/ifTable_interface.c new file mode 100644 index 0000000..41d38ee --- /dev/null +++ b/agent/mibgroup/if-mib/ifTable/ifTable_interface.c @@ -0,0 +1,2019 @@ +/* + * Note: this file originally auto-generated by mib2c using + * version : 1.67 $ of : mfd-interface.m2c,v $ + * + * $Id$ + */ +/* + * ********************************************************************* + * ********************************************************************* + * ********************************************************************* + * *** *** + * *** NOTE NOTE NOTE NOTE NOTE NOTE NOTE NOTE NOTE NOTE NOTE NOTE *** + * *** *** + * *** *** + * *** THIS FILE DOES NOT CONTAIN ANY USER EDITABLE CODE. *** + * *** *** + * *** *** + * *** THE GENERATED CODE IS INTERNAL IMPLEMENTATION, AND *** + * *** *** + * *** *** + * *** IS SUBJECT TO CHANGE WITHOUT WARNING IN FUTURE RELEASES. *** + * *** *** + * *** *** + * ********************************************************************* + * ********************************************************************* + * ********************************************************************* + */ + +/* + * standard Net-SNMP includes + */ +#include <net-snmp/net-snmp-config.h> +#include <net-snmp/net-snmp-features.h> +#include <net-snmp/net-snmp-includes.h> +#include <net-snmp/agent/net-snmp-agent-includes.h> + +/* + * include our parent header + */ +#include "ifTable.h" +#include "ifTable_defs.h" + + +#include <net-snmp/agent/table_container.h> +#include <net-snmp/library/container.h> + +#include "ifTable_interface.h" + +#include <ctype.h> + +netsnmp_feature_child_of(ifTable_external_access, libnetsnmpmibs) + +netsnmp_feature_require(row_merge) +netsnmp_feature_require(baby_steps) +netsnmp_feature_require(check_all_requests_error) +netsnmp_feature_child_of(iftable_container_get, ifTable_external_access) +netsnmp_feature_child_of(ifxtable_shutdown_interface, netsnmp_unused) +netsnmp_feature_child_of(ifXTable_container_size, ifXTable_external_access) +netsnmp_feature_child_of(ifXTable_registration_set, ifXTable_external_access) +netsnmp_feature_child_of(ifXTable_registration_get, ifXTable_external_access) +netsnmp_feature_child_of(ifXTable_container_get, ifXTable_external_access) +netsnmp_feature_child_of(iftable_container_size, ifTable_external_access) +netsnmp_feature_child_of(iftable_registration_set, ifTable_external_access) +netsnmp_feature_child_of(iftable_registration_get, ifTable_external_access) + +/********************************************************************** + ********************************************************************** + *** + *** Table ifTable + *** + ********************************************************************** + **********************************************************************/ +/* + * IF-MIB::ifTable is subid 2 of interfaces. + * Its status is Current. + * OID: .1.3.6.1.2.1.2.2, length: 8 + */ +typedef struct ifTable_interface_ctx_s { + + netsnmp_container *container; + netsnmp_cache *cache; + + ifTable_registration *user_ctx; + + netsnmp_table_registration_info tbl_info; + + netsnmp_baby_steps_access_methods access_multiplexer; + + u_int table_dirty; + + u_long last_changed; + +} ifTable_interface_ctx; + +static ifTable_interface_ctx ifTable_if_ctx; + +static void _ifTable_container_init(ifTable_interface_ctx * if_ctx); +static void _ifTable_container_shutdown(ifTable_interface_ctx * + if_ctx); + +#ifndef NETSNMP_FEATURE_REMOVE_IFTABLE_CONTAINER_GET +netsnmp_container * +ifTable_container_get(void) +{ + return ifTable_if_ctx.container; +} +#endif /* NETSNMP_FEATURE_REMOVE_IFTABLE_CONTAINER_GET */ + +#ifndef NETSNMP_FEATURE_REMOVE_IFTABLE_REGISTRATION_GET +ifTable_registration * +ifTable_registration_get(void) +{ + return ifTable_if_ctx.user_ctx; +} +#endif /* NETSNMP_FEATURE_REMOVE_IFTABLE_REGISTRATION_GET */ + +#ifndef NETSNMP_FEATURE_REMOVE_IFTABLE_REGISTRATION_SET +ifTable_registration * +ifTable_registration_set(ifTable_registration * newreg) +{ + ifTable_registration *old = ifTable_if_ctx.user_ctx; + ifTable_if_ctx.user_ctx = newreg; + return old; +} +#endif /* NETSNMP_FEATURE_REMOVE_IFTABLE_REGISTRATION_SET */ + +#ifndef NETSNMP_FEATURE_REMOVE_IFTABLE_CONTAINER_SIZE +int +ifTable_container_size(void) +{ + return CONTAINER_SIZE(ifTable_if_ctx.container); +} +#endif /* NETSNMP_FEATURE_REMOVE_IFTABLE_CONTAINER_SIZE */ + +u_int +ifTable_dirty_get(void) +{ + return ifTable_if_ctx.table_dirty; +} + +void +ifTable_dirty_set(u_int status) +{ + DEBUGMSGTL(("ifTable:ifTable_dirty_set", + "called. was %d, now %d\n", + ifTable_if_ctx.table_dirty, status)); + ifTable_if_ctx.table_dirty = status; +} + +/* + * ifTableLastChanged, which is not the last time that a row in + * the table was changed, but rather is the last time a row was + * added/deleted from the table. + */ +void +ifTable_lastChange_set(u_long table_changed) +{ + DEBUGMSGTL(("ifTable:ifTable_lastChanged_set", + "called. was %ld, now %ld\n", + ifTable_if_ctx.last_changed, table_changed)); + ifTable_if_ctx.last_changed = table_changed; +} + +/* + * mfd multiplexer modes + */ +static Netsnmp_Node_Handler _mfd_ifTable_pre_request; +static Netsnmp_Node_Handler _mfd_ifTable_post_request; +static Netsnmp_Node_Handler _mfd_ifTable_object_lookup; +static Netsnmp_Node_Handler _mfd_ifTable_get_values; +#if !(defined(NETSNMP_NO_WRITE_SUPPORT) || defined(NETSNMP_DISABLE_SET_SUPPORT)) +static Netsnmp_Node_Handler _mfd_ifTable_check_objects; +static Netsnmp_Node_Handler _mfd_ifTable_undo_setup; +static Netsnmp_Node_Handler _mfd_ifTable_set_values; +static Netsnmp_Node_Handler _mfd_ifTable_undo_cleanup; +static Netsnmp_Node_Handler _mfd_ifTable_undo_values; +static Netsnmp_Node_Handler _mfd_ifTable_commit; +static Netsnmp_Node_Handler _mfd_ifTable_undo_commit; +static Netsnmp_Node_Handler _mfd_ifTable_irreversible_commit; +static Netsnmp_Node_Handler _mfd_ifTable_check_dependencies; + +NETSNMP_STATIC_INLINE int _ifTable_undo_column(ifTable_rowreq_ctx * + rowreq_ctx, + netsnmp_variable_list * var, + int column); +#endif /* NETSNMP_NO_WRITE_SUPPORT || NETSNMP_DISABLE_SET_SUPPORT */ + +ifTable_data *ifTable_allocate_data(void); + +/** + * common init of container for ifTable and ifXTable + */ +void +if_mib_container_init(void) +{ + static int done = 0; + + if (done) + return; + + DEBUGMSGTL(("internal:ifTable:ifTable_container_init", "called\n")); + + done = 1; + + /* + * set up the container. This is outside the rewrite ifdef, because + * the container is used by the ifXTable too.. + */ + _ifTable_container_init(&ifTable_if_ctx); +} + +/** + * @internal + * Initialize the table ifTable + * (Define its contents and how it's structured) + */ +void +_ifTable_initialize_interface(ifTable_registration * reg_ptr, u_long flags) +{ + netsnmp_baby_steps_access_methods *access_multiplexer = + &ifTable_if_ctx.access_multiplexer; + netsnmp_table_registration_info *tbl_info = &ifTable_if_ctx.tbl_info; + netsnmp_handler_registration *reginfo; + netsnmp_mib_handler *handler; + int mfd_modes = 0; + + DEBUGMSGTL(("internal:ifTable:_ifTable_initialize_interface", + "called\n")); + + (void) if_mib_container_init(); + if (NULL == ifTable_if_ctx.container) + return; /* msg already logged */ + +#ifndef USING_MIBII_INTERFACES_MODULE + /************************************************* + * + * save interface context for ifTable + */ + /* + * Setting up the table's definition + */ + netsnmp_table_helper_add_indexes(tbl_info, ASN_INTEGER, + /** index: ifIndex */ + 0); + + /* + * Define the minimum and maximum accessible columns. This + * optimizes retrieval. + */ + tbl_info->min_column = IFTABLE_MIN_COL; + tbl_info->max_column = IFTABLE_MAX_COL; + + /* + * save users context + */ + ifTable_if_ctx.user_ctx = reg_ptr; + + /* + * call data access initialization code + */ + ifTable_init_data(reg_ptr); + + /* + * access_multiplexer: REQUIRED wrapper for get request handling + */ + access_multiplexer->object_lookup = _mfd_ifTable_object_lookup; + access_multiplexer->get_values = _mfd_ifTable_get_values; + + /* + * no wrappers yet + */ + access_multiplexer->pre_request = _mfd_ifTable_pre_request; + access_multiplexer->post_request = _mfd_ifTable_post_request; + + +#if !(defined(NETSNMP_NO_WRITE_SUPPORT) || defined(NETSNMP_DISABLE_SET_SUPPORT)) + /* + * REQUIRED wrappers for set request handling + */ + access_multiplexer->object_syntax_checks = _mfd_ifTable_check_objects; + access_multiplexer->undo_setup = _mfd_ifTable_undo_setup; + access_multiplexer->undo_cleanup = _mfd_ifTable_undo_cleanup; + access_multiplexer->set_values = _mfd_ifTable_set_values; + access_multiplexer->undo_sets = _mfd_ifTable_undo_values; + + /* + * no wrappers yet + */ + access_multiplexer->commit = _mfd_ifTable_commit; + access_multiplexer->undo_commit = _mfd_ifTable_undo_commit; + access_multiplexer->irreversible_commit = + _mfd_ifTable_irreversible_commit; + + /* + * REQUIRED for tables with dependencies + */ + access_multiplexer->consistency_checks = + _mfd_ifTable_check_dependencies; +#endif /* NETSNMP_NO_WRITE_SUPPORT || NETSNMP_DISABLE_SET_SUPPORT */ + + /************************************************* + * + * Create a registration, save our reg data, register table. + */ + DEBUGMSGTL(("ifTable:init_ifTable", + "Registering ifTable as a mibs-for-dummies table.\n")); + handler = + netsnmp_baby_steps_access_multiplexer_get(access_multiplexer); + reginfo = + netsnmp_handler_registration_create("ifTable", handler, + ifTable_oid, ifTable_oid_size, + HANDLER_CAN_BABY_STEP | +#if !(defined(NETSNMP_NO_WRITE_SUPPORT) || defined(NETSNMP_DISABLE_SET_SUPPORT)) + HANDLER_CAN_RWRITE +#else + HANDLER_CAN_RONLY +#endif /* NETSNMP_NO_WRITE_SUPPORT || NETSNMP_DISABLE_SET_SUPPORT */ + ); + + if (NULL == reginfo) { + snmp_log(LOG_ERR, "error registering table ifTable\n"); + return; + } + reginfo->my_reg_void = &ifTable_if_ctx; + + /************************************************* + * + * set up baby steps handler, create it and inject it + */ + if (access_multiplexer->object_lookup) + mfd_modes |= BABY_STEP_OBJECT_LOOKUP; + if (access_multiplexer->pre_request) + mfd_modes |= BABY_STEP_PRE_REQUEST; + if (access_multiplexer->post_request) + mfd_modes |= BABY_STEP_POST_REQUEST; + +#if !(defined(NETSNMP_NO_WRITE_SUPPORT) || defined(NETSNMP_DISABLE_SET_SUPPORT)) + if (access_multiplexer->set_values) + mfd_modes |= BABY_STEP_SET_VALUES; + if (access_multiplexer->irreversible_commit) + mfd_modes |= BABY_STEP_IRREVERSIBLE_COMMIT; + if (access_multiplexer->object_syntax_checks) + mfd_modes |= BABY_STEP_CHECK_OBJECT; + + if (access_multiplexer->undo_setup) + mfd_modes |= BABY_STEP_UNDO_SETUP; + if (access_multiplexer->undo_cleanup) + mfd_modes |= BABY_STEP_UNDO_CLEANUP; + if (access_multiplexer->undo_sets) + mfd_modes |= BABY_STEP_UNDO_SETS; + + if (access_multiplexer->row_creation) + mfd_modes |= BABY_STEP_ROW_CREATE; + if (access_multiplexer->consistency_checks) + mfd_modes |= BABY_STEP_CHECK_CONSISTENCY; + if (access_multiplexer->commit) + mfd_modes |= BABY_STEP_COMMIT; + if (access_multiplexer->undo_commit) + mfd_modes |= BABY_STEP_UNDO_COMMIT; +#endif /* NETSNMP_NO_WRITE_SUPPORT || NETSNMP_DISABLE_SET_SUPPORT */ + + handler = netsnmp_baby_steps_handler_get(mfd_modes); + netsnmp_inject_handler(reginfo, handler); + + /************************************************* + * + * inject row_merge helper with prefix rootoid_len + 2 (entry.col) + */ + handler = netsnmp_get_row_merge_handler(reginfo->rootoid_len + 2); + netsnmp_inject_handler(reginfo, handler); + + /************************************************* + * + * inject container_table helper + */ + handler = + netsnmp_container_table_handler_get(tbl_info, + ifTable_if_ctx.container, + TABLE_CONTAINER_KEY_NETSNMP_INDEX); + netsnmp_inject_handler(reginfo, handler); + + /************************************************* + * + * inject cache helper + */ + if (NULL != ifTable_if_ctx.cache) { + handler = netsnmp_cache_handler_get(ifTable_if_ctx.cache); + netsnmp_inject_handler(reginfo, handler); + } + + /* + * register table + */ + netsnmp_register_table(reginfo, tbl_info); + + + /* + * register ifTableLastChanged + */ + { + const oid iftlc_oid[] = { IFTABLE_LAST_CHANGE }; + netsnmp_register_watched_scalar2(netsnmp_create_handler_registration + ("ifTableLastChanged", NULL, + iftlc_oid, OID_LENGTH(iftlc_oid), + HANDLER_CAN_RONLY), + netsnmp_create_watcher_info((void + *) + &ifTable_if_ctx. + last_changed, + sizeof + (u_long), + ASN_TIMETICKS, + WATCHER_FIXED_SIZE)); + } +#endif /* USING_MIBII_INTERFACES_MODULE */ + +} /* _ifTable_initialize_interface */ + +/** + * @internal + * Shutdown the table ifTable + */ +void +_ifTable_shutdown_interface(ifTable_registration * reg_ptr) +{ + /* + * shutdown the container + */ + _ifTable_container_shutdown(&ifTable_if_ctx); +} + +void +ifTable_valid_columns_set(netsnmp_column_info *vc) +{ + ifTable_if_ctx.tbl_info.valid_columns = vc; +} /* ifTable_valid_columns_set */ + +/** + * @internal + * convert the index component stored in the context to an oid + */ +int +ifTable_index_to_oid(netsnmp_index * oid_idx, ifTable_mib_index * mib_idx) +{ + int err = SNMP_ERR_NOERROR; + + /* + * temp storage for parsing indexes + */ + /* + * ifIndex(1)/InterfaceIndex/ASN_INTEGER/long(long)//l/A/w/e/R/d/H + */ + netsnmp_variable_list var_ifIndex; + + /* + * set up varbinds + */ + memset(&var_ifIndex, 0x00, sizeof(var_ifIndex)); + var_ifIndex.type = ASN_INTEGER; + + /* + * chain temp index varbinds together + */ + var_ifIndex.next_variable = NULL; + + + DEBUGMSGTL(("verbose:ifTable:ifTable_index_to_oid", "called\n")); + + /* + * ifIndex(1)/InterfaceIndex/ASN_INTEGER/long(long)//l/A/w/e/R/d/H + */ + snmp_set_var_value(&var_ifIndex, (u_char *) & mib_idx->ifIndex, + sizeof(mib_idx->ifIndex)); + + + err = build_oid_noalloc(oid_idx->oids, oid_idx->len, &oid_idx->len, + NULL, 0, &var_ifIndex); + if (err) + snmp_log(LOG_ERR, "error %d converting index to oid\n", err); + + /* + * parsing may have allocated memory. free it. + */ + snmp_reset_var_buffers(&var_ifIndex); + + return err; +} /* ifTable_index_to_oid */ + +/** + * extract ifTable indexes from a netsnmp_index + * + * @retval SNMP_ERR_NOERROR : no error + * @retval SNMP_ERR_GENERR : error + */ +int +ifTable_index_from_oid(netsnmp_index * oid_idx, + ifTable_mib_index * mib_idx) +{ + int err = SNMP_ERR_NOERROR; + + /* + * temp storage for parsing indexes + */ + /* + * ifIndex(1)/InterfaceIndex/ASN_INTEGER/long(long)//l/A/w/e/R/d/H + */ + netsnmp_variable_list var_ifIndex; + + /* + * set up varbinds + */ + memset(&var_ifIndex, 0x00, sizeof(var_ifIndex)); + var_ifIndex.type = ASN_INTEGER; + + /* + * chain temp index varbinds together + */ + var_ifIndex.next_variable = NULL; + + + DEBUGMSGTL(("verbose:ifTable:ifTable_index_from_oid", "called\n")); + + /* + * parse the oid into the individual index components + */ + err = parse_oid_indexes(oid_idx->oids, oid_idx->len, &var_ifIndex); + if (err == SNMP_ERR_NOERROR) { + /* + * copy out values + */ + mib_idx->ifIndex = *((long *) var_ifIndex.val.string); + } + + /* + * parsing may have allocated memory. free it. + */ + snmp_reset_var_buffers(&var_ifIndex); + + return err; +} /* ifTable_index_from_oid */ + + +/* + * ifTable_allocate_data + * + * Purpose: create new ifTable_data. + */ +ifTable_data * +ifTable_allocate_data(void) +{ + ifTable_data *rtn = SNMP_MALLOC_TYPEDEF(ifTable_data); + + DEBUGMSGTL(("verbose:ifTable:ifTable_allocate_data", "called\n")); + + if (NULL == rtn) { + snmp_log(LOG_ERR, "unable to malloc memory for new " + "ifTable_data.\n"); + } + + return rtn; +} /* ifTable_allocate_data */ + +/* + * ifTable_release_data + * + * Purpose: release ifTable data. + */ +void +ifTable_release_data(ifTable_data * data) +{ + DEBUGMSGTL(("verbose:ifTable:ifTable_release_data", "called\n")); + + free(data); +} /* ifTable_release_data */ + +/* + ********************************************************************* + * @internal + * allocate resources for a ifTable_rowreq_ctx + */ +ifTable_rowreq_ctx * +ifTable_allocate_rowreq_ctx(void *user_init_ctx) +{ + ifTable_rowreq_ctx *rowreq_ctx = + SNMP_MALLOC_TYPEDEF(ifTable_rowreq_ctx); + + DEBUGMSGTL(("internal:ifTable:ifTable_allocate_rowreq_ctx", + "called\n")); + + if (NULL == rowreq_ctx) { + snmp_log(LOG_ERR, "Couldn't allocate memory for a " + "ifTable_rowreq_ctx.\n"); + return NULL; + } + + rowreq_ctx->oid_idx.oids = rowreq_ctx->oid_tmp; + + rowreq_ctx->ifTable_data_list = NULL; + + /* + * if we allocated data, call init routine + */ + if (!(rowreq_ctx->rowreq_flags & MFD_ROW_DATA_FROM_USER)) { + if (SNMPERR_SUCCESS != + ifTable_rowreq_ctx_init(rowreq_ctx, user_init_ctx)) { + ifTable_release_rowreq_ctx(rowreq_ctx); + rowreq_ctx = NULL; + } + } + + return rowreq_ctx; +} /* ifTable_allocate_rowreq_ctx */ + +/* + * @internal + * release resources for a ifTable_rowreq_ctx + */ +void +ifTable_release_rowreq_ctx(ifTable_rowreq_ctx * rowreq_ctx) +{ + DEBUGMSGTL(("internal:ifTable:ifTable_release_rowreq_ctx", + "called\n")); + + netsnmp_assert(NULL != rowreq_ctx); + + ifTable_rowreq_ctx_cleanup(rowreq_ctx); + + if (rowreq_ctx->undo) { + ifTable_release_data(rowreq_ctx->undo); + rowreq_ctx->undo = NULL; + } + + /* + * free index oid pointer + */ + if (rowreq_ctx->oid_idx.oids != rowreq_ctx->oid_tmp) + free(rowreq_ctx->oid_idx.oids); + + SNMP_FREE(rowreq_ctx); +} /* ifTable_release_rowreq_ctx */ + +/** + * @internal + * wrapper + */ +static int +_mfd_ifTable_pre_request(netsnmp_mib_handler *handler, + netsnmp_handler_registration *reginfo, + netsnmp_agent_request_info *agtreq_info, + netsnmp_request_info *requests) +{ + int rc; + + DEBUGMSGTL(("internal:ifTable:_mfd_ifTable_pre_request", "called\n")); + + if (1 != netsnmp_row_merge_status_first(reginfo, agtreq_info)) { + DEBUGMSGTL(("internal:ifTable", + "skipping additional pre_request\n")); + return SNMP_ERR_NOERROR; + } + + rc = ifTable_pre_request(ifTable_if_ctx.user_ctx); + if (MFD_SUCCESS != rc) { + /* + * nothing we can do about it but log it + */ + DEBUGMSGTL(("ifTable", "error %d from " + "ifTable_pre_request\n", rc)); + netsnmp_request_set_error_all(requests, SNMP_VALIDATE_ERR(rc)); + } + + return SNMP_ERR_NOERROR; +} /* _mfd_ifTable_pre_request */ + +/** + * @internal + * wrapper + */ +static int +_mfd_ifTable_post_request(netsnmp_mib_handler *handler, + netsnmp_handler_registration *reginfo, + netsnmp_agent_request_info *agtreq_info, + netsnmp_request_info *requests) +{ + ifTable_rowreq_ctx *rowreq_ctx = (ifTable_rowreq_ctx*) + netsnmp_container_table_row_extract(requests); + int rc, packet_rc; + + DEBUGMSGTL(("internal:ifTable:_mfd_ifTable_post_request", "called\n")); + + /* + * release row context, if deleted + */ + if (rowreq_ctx && (rowreq_ctx->rowreq_flags & MFD_ROW_DELETED)) + ifTable_release_rowreq_ctx(rowreq_ctx); + + /* + * wait for last call before calling user + */ + if (1 != netsnmp_row_merge_status_last(reginfo, agtreq_info)) { + DEBUGMSGTL(("internal:ifTable", + "waiting for last post_request\n")); + return SNMP_ERR_NOERROR; + } + + packet_rc = netsnmp_check_all_requests_error(agtreq_info->asp, 0); + if ((MFD_SUCCESS != packet_rc) && ifTable_dirty_get()) { + /* + * we shouldn't get here. the undo steps should also clear + * the dirty flags. + */ + snmp_log(LOG_WARNING, "ifTable dirty flag set in post_request " + "but status != SUCCESS.\n"); + } + + rc = ifTable_post_request(ifTable_if_ctx.user_ctx, packet_rc); + if (MFD_SUCCESS != rc) { + /* + * nothing we can do about it but log it + */ + DEBUGMSGTL(("ifTable", "error %d from " + "ifTable_post_request\n", rc)); + } + + return SNMP_ERR_NOERROR; +} /* _mfd_ifTable_post_request */ + +/** + * @internal + * wrapper + */ +static int +_mfd_ifTable_object_lookup(netsnmp_mib_handler *handler, + netsnmp_handler_registration *reginfo, + netsnmp_agent_request_info *agtreq_info, + netsnmp_request_info *requests) +{ + int rc = SNMP_ERR_NOERROR; + ifTable_rowreq_ctx *rowreq_ctx = (ifTable_rowreq_ctx*) + netsnmp_container_table_row_extract(requests); + + DEBUGMSGTL(("internal:ifTable:_mfd_ifTable_object_lookup", + "called\n")); + + /* + * get our context from mfd + * ifTable_interface_ctx *if_ctx = + * (ifTable_interface_ctx *)reginfo->my_reg_void; + */ + + if (NULL == rowreq_ctx) { + rc = SNMP_ERR_NOCREATION; + } + + if (MFD_SUCCESS != rc) + netsnmp_request_set_error_all(requests, rc); + else + ifTable_row_prep(rowreq_ctx); + + return SNMP_VALIDATE_ERR(rc); +} /* _mfd_ifTable_object_lookup */ + +/*********************************************************************** + * + * GET processing + * + ***********************************************************************/ +/* + * @internal + * Retrieve the value for a particular column + */ +NETSNMP_STATIC_INLINE int +_ifTable_get_column(ifTable_rowreq_ctx * rowreq_ctx, + netsnmp_variable_list * var, int column) +{ + int rc = SNMPERR_SUCCESS; + + DEBUGMSGTL(("internal:ifTable:_mfd_ifTable_get_column", + "called for %d\n", column)); + + + netsnmp_assert(NULL != rowreq_ctx); + + switch (column) { + + /* + * (INDEX) ifIndex(1)/InterfaceIndex/ASN_INTEGER/long(long)//l/A/w/e/R/d/H + */ + case COLUMN_IFINDEX: + var->type = ASN_INTEGER; + var->val_len = sizeof(long); + (*var->val.integer) = rowreq_ctx->tbl_idx.ifIndex; + break; + + /* + * ifDescr(2)/DisplayString/ASN_OCTET_STR/char(char)//L/A/w/e/R/d/H + */ + case COLUMN_IFDESCR: + var->type = ASN_OCTET_STR; + rc = ifDescr_get(rowreq_ctx, (char **) &var->val.string, + &var->val_len); + break; + + /* + * ifType(3)/IANAifType/ASN_INTEGER/long(u_long)//l/A/w/E/r/d/h + */ + case COLUMN_IFTYPE: + var->val_len = sizeof(u_long); + var->type = ASN_INTEGER; + rc = ifType_get(rowreq_ctx, (u_long *) var->val.string); + break; + + /* + * ifMtu(4)/INTEGER32/ASN_INTEGER/long(long)//l/A/w/e/r/d/h + */ + case COLUMN_IFMTU: + var->val_len = sizeof(long); + var->type = ASN_INTEGER; + rc = ifMtu_get(rowreq_ctx, (long *) var->val.string); + break; + + /* + * ifSpeed(5)/GAUGE/ASN_GAUGE/u_long(u_long)//l/A/w/e/r/d/h + */ + case COLUMN_IFSPEED: + var->val_len = sizeof(u_long); + var->type = ASN_GAUGE; + rc = ifSpeed_get(rowreq_ctx, (u_long *) var->val.string); + break; + + /* + * ifPhysAddress(6)/PhysAddress/ASN_OCTET_STR/char(char)//L/A/w/e/r/d/H + */ + case COLUMN_IFPHYSADDRESS: + var->type = ASN_OCTET_STR; + rc = ifPhysAddress_get(rowreq_ctx, (char **) &var->val.string, + &var->val_len); + break; + + /* + * ifAdminStatus(7)/INTEGER/ASN_INTEGER/long(u_long)//l/A/W/E/r/d/h + */ + case COLUMN_IFADMINSTATUS: + var->val_len = sizeof(u_long); + var->type = ASN_INTEGER; + rc = ifAdminStatus_get(rowreq_ctx, (u_long *) var->val.string); + break; + + /* + * ifOperStatus(8)/INTEGER/ASN_INTEGER/long(u_long)//l/A/w/E/r/d/h + */ + case COLUMN_IFOPERSTATUS: + var->val_len = sizeof(u_long); + var->type = ASN_INTEGER; + rc = ifOperStatus_get(rowreq_ctx, (u_long *) var->val.string); + break; + + /* + * ifLastChange(9)/TICKS/ASN_TIMETICKS/u_long(u_long)//l/A/w/e/r/d/h + */ + case COLUMN_IFLASTCHANGE: + var->val_len = sizeof(u_long); + var->type = ASN_TIMETICKS; + rc = ifLastChange_get(rowreq_ctx, (u_long *) var->val.string); + break; + + /* + * ifInOctets(10)/COUNTER/ASN_COUNTER/u_long(u_long)//l/A/w/e/r/d/h + */ + case COLUMN_IFINOCTETS: + var->val_len = sizeof(u_long); + var->type = ASN_COUNTER; + rc = ifInOctets_get(rowreq_ctx, (u_long *) var->val.string); + break; + + /* + * ifInUcastPkts(11)/COUNTER/ASN_COUNTER/u_long(u_long)//l/A/w/e/r/d/h + */ + case COLUMN_IFINUCASTPKTS: + var->val_len = sizeof(u_long); + var->type = ASN_COUNTER; + rc = ifInUcastPkts_get(rowreq_ctx, (u_long *) var->val.string); + break; + + /* + * ifInNUcastPkts(12)/COUNTER/ASN_COUNTER/u_long(u_long)//l/A/w/e/r/d/h + */ + case COLUMN_IFINNUCASTPKTS: + var->val_len = sizeof(u_long); + var->type = ASN_COUNTER; + rc = ifInNUcastPkts_get(rowreq_ctx, (u_long *) var->val.string); + break; + + /* + * ifInDiscards(13)/COUNTER/ASN_COUNTER/u_long(u_long)//l/A/w/e/r/d/h + */ + case COLUMN_IFINDISCARDS: + var->val_len = sizeof(u_long); + var->type = ASN_COUNTER; + rc = ifInDiscards_get(rowreq_ctx, (u_long *) var->val.string); + break; + + /* + * ifInErrors(14)/COUNTER/ASN_COUNTER/u_long(u_long)//l/A/w/e/r/d/h + */ + case COLUMN_IFINERRORS: + var->val_len = sizeof(u_long); + var->type = ASN_COUNTER; + rc = ifInErrors_get(rowreq_ctx, (u_long *) var->val.string); + break; + + /* + * ifInUnknownProtos(15)/COUNTER/ASN_COUNTER/u_long(u_long)//l/A/w/e/r/d/h + */ + case COLUMN_IFINUNKNOWNPROTOS: + var->val_len = sizeof(u_long); + var->type = ASN_COUNTER; + rc = ifInUnknownProtos_get(rowreq_ctx, (u_long *) var->val.string); + break; + + /* + * ifOutOctets(16)/COUNTER/ASN_COUNTER/u_long(u_long)//l/A/w/e/r/d/h + */ + case COLUMN_IFOUTOCTETS: + var->val_len = sizeof(u_long); + var->type = ASN_COUNTER; + rc = ifOutOctets_get(rowreq_ctx, (u_long *) var->val.string); + break; + + /* + * ifOutUcastPkts(17)/COUNTER/ASN_COUNTER/u_long(u_long)//l/A/w/e/r/d/h + */ + case COLUMN_IFOUTUCASTPKTS: + var->val_len = sizeof(u_long); + var->type = ASN_COUNTER; + rc = ifOutUcastPkts_get(rowreq_ctx, (u_long *) var->val.string); + break; + + /* + * ifOutNUcastPkts(18)/COUNTER/ASN_COUNTER/u_long(u_long)//l/A/w/e/r/d/h + */ + case COLUMN_IFOUTNUCASTPKTS: + var->val_len = sizeof(u_long); + var->type = ASN_COUNTER; + rc = ifOutNUcastPkts_get(rowreq_ctx, (u_long *) var->val.string); + break; + + /* + * ifOutDiscards(19)/COUNTER/ASN_COUNTER/u_long(u_long)//l/A/w/e/r/d/h + */ + case COLUMN_IFOUTDISCARDS: + var->val_len = sizeof(u_long); + var->type = ASN_COUNTER; + rc = ifOutDiscards_get(rowreq_ctx, (u_long *) var->val.string); + break; + + /* + * ifOutErrors(20)/COUNTER/ASN_COUNTER/u_long(u_long)//l/A/w/e/r/d/h + */ + case COLUMN_IFOUTERRORS: + var->val_len = sizeof(u_long); + var->type = ASN_COUNTER; + rc = ifOutErrors_get(rowreq_ctx, (u_long *) var->val.string); + break; + + /* + * ifOutQLen(21)/GAUGE/ASN_GAUGE/u_long(u_long)//l/A/w/e/r/d/h + */ + case COLUMN_IFOUTQLEN: + var->val_len = sizeof(u_long); + var->type = ASN_GAUGE; + rc = ifOutQLen_get(rowreq_ctx, (u_long *) var->val.string); + break; + + /* + * ifSpecific(22)/OBJECTID/ASN_OBJECT_ID/oid(oid)//L/A/w/e/r/d/h + */ + case COLUMN_IFSPECIFIC: + var->type = ASN_OBJECT_ID; + rc = ifSpecific_get(rowreq_ctx, (oid **) & var->val.string, + &var->val_len); + break; + + default: + snmp_log(LOG_ERR, "unknown column %d in _ifTable_get_column\n", + column); + break; + } + + return rc; +} /* _ifTable_get_column */ + +int +_mfd_ifTable_get_values(netsnmp_mib_handler *handler, + netsnmp_handler_registration *reginfo, + netsnmp_agent_request_info *agtreq_info, + netsnmp_request_info *requests) +{ + ifTable_rowreq_ctx *rowreq_ctx = (ifTable_rowreq_ctx*) + netsnmp_container_table_row_extract(requests); + netsnmp_table_request_info *tri; + u_char *old_string; + void (*dataFreeHook) (void *); + int rc; + + DEBUGMSGTL(("internal:ifTable:_mfd_ifTable_get_values", "called\n")); + + netsnmp_assert(NULL != rowreq_ctx); + + for (; requests; requests = requests->next) { + /* + * save old pointer, so we can free it if replaced + */ + old_string = requests->requestvb->val.string; + dataFreeHook = requests->requestvb->dataFreeHook; + if (NULL == requests->requestvb->val.string) { + requests->requestvb->val.string = requests->requestvb->buf; + requests->requestvb->val_len = + sizeof(requests->requestvb->buf); + } else if (requests->requestvb->buf == + requests->requestvb->val.string) { + if (requests->requestvb->val_len != + sizeof(requests->requestvb->buf)) + requests->requestvb->val_len = + sizeof(requests->requestvb->buf); + } + + /* + * get column data + */ + tri = netsnmp_extract_table_info(requests); + if (NULL == tri) + continue; + + rc = _ifTable_get_column(rowreq_ctx, requests->requestvb, + tri->colnum); + if (rc) { + if (MFD_SKIP == rc) { + requests->requestvb->type = SNMP_NOSUCHINSTANCE; + rc = SNMP_ERR_NOERROR; + } + } else if (NULL == requests->requestvb->val.string) { + snmp_log(LOG_ERR, "NULL varbind data pointer!\n"); + rc = SNMP_ERR_GENERR; + } + if (rc) + netsnmp_request_set_error(requests, SNMP_VALIDATE_ERR(rc)); + + /* + * if the buffer wasn't used previously for the old data (i.e. it + * was allcoated memory) and the get routine replaced the pointer, + * we need to free the previous pointer. + */ + if (old_string && (old_string != requests->requestvb->buf) && + (requests->requestvb->val.string != old_string)) { + if (dataFreeHook) + (*dataFreeHook) (old_string); + else + free(old_string); + } + } /* for results */ + + return SNMP_ERR_NOERROR; +} /* _mfd_ifTable_get_values */ + + + +#if !(defined(NETSNMP_NO_WRITE_SUPPORT) || defined(NETSNMP_DISABLE_SET_SUPPORT)) + +/*********************************************************************** + * + * SET processing + * + ***********************************************************************/ + +/*---------------------------------------------------------------------- + * + * SET: Syntax checks + * + *---------------------------------------------------------------------*/ +/* + * @internal + * Check the syntax for a particular column + */ +NETSNMP_STATIC_INLINE int +_ifTable_check_column(ifTable_rowreq_ctx * rowreq_ctx, + netsnmp_variable_list * var, int column) +{ + int rc = SNMPERR_SUCCESS; + + DEBUGMSGTL(("internal:ifTable:_ifTable_check_column", + "called for %d\n", column)); + + netsnmp_assert(NULL != rowreq_ctx); + + switch (column) { + /* + * (INDEX) ifIndex(1)/InterfaceIndex/ASN_INTEGER/long(long)//l/A/w/e/R/d/H + */ + case COLUMN_IFINDEX: + rc = SNMP_ERR_NOTWRITABLE; /* can not change index of active row */ + break; + + /* + * ifDescr(2)/DisplayString/ASN_OCTET_STR/char(char)//L/A/w/e/R/d/H + */ + case COLUMN_IFDESCR: + rc = SNMP_ERR_NOTWRITABLE; + break; + + /* + * ifType(3)/IANAifType/ASN_INTEGER/long(u_long)//l/A/w/E/r/d/h + */ + case COLUMN_IFTYPE: + rc = SNMP_ERR_NOTWRITABLE; + break; + + /* + * ifMtu(4)/INTEGER32/ASN_INTEGER/long(long)//l/A/w/e/r/d/h + */ + case COLUMN_IFMTU: + rc = SNMP_ERR_NOTWRITABLE; + break; + + /* + * ifSpeed(5)/GAUGE/ASN_GAUGE/u_long(u_long)//l/A/w/e/r/d/h + */ + case COLUMN_IFSPEED: + rc = SNMP_ERR_NOTWRITABLE; + break; + + /* + * ifPhysAddress(6)/PhysAddress/ASN_OCTET_STR/char(char)//L/A/w/e/r/d/H + */ + case COLUMN_IFPHYSADDRESS: + rc = SNMP_ERR_NOTWRITABLE; + break; + + /* + * ifAdminStatus(7)/INTEGER/ASN_INTEGER/long(u_long)//l/A/W/E/r/d/h + */ + case COLUMN_IFADMINSTATUS: + /** special case: we are using exernal storage w/smaller data size + ** for storage, so we can't use sizeof on data context. So we + ** just check that it's the expected size. The enum tests below + ** will ensure that there is no data overflow. */ + rc = netsnmp_check_vb_type_and_size(var, ASN_INTEGER, + sizeof(u_long)); + /* + * check that the value is one of defined enums + */ + if ((SNMPERR_SUCCESS == rc) + && (*var->val.integer != IFADMINSTATUS_UP) + && (*var->val.integer != IFADMINSTATUS_DOWN) + && (*var->val.integer != IFADMINSTATUS_TESTING) + ) { + rc = SNMP_ERR_WRONGVALUE; + } + if (SNMPERR_SUCCESS != rc) { + DEBUGMSGTL(("ifTable:_ifTable_check_column:ifAdminStatus", + "varbind validation failed (eg bad type or size)\n")); + } else { + rc = ifAdminStatus_check_value(rowreq_ctx, + *((u_long *) var->val.string)); + if ((MFD_SUCCESS != rc) && (MFD_NOT_VALID_EVER != rc) + && (MFD_NOT_VALID_NOW != rc)) { + snmp_log(LOG_ERR, + "bad rc %d from ifAdminStatus_check_value\n", rc); + rc = SNMP_ERR_GENERR; + } + } + break; + + /* + * ifOperStatus(8)/INTEGER/ASN_INTEGER/long(u_long)//l/A/w/E/r/d/h + */ + case COLUMN_IFOPERSTATUS: + rc = SNMP_ERR_NOTWRITABLE; + break; + + /* + * ifLastChange(9)/TICKS/ASN_TIMETICKS/u_long(u_long)//l/A/w/e/r/d/h + */ + case COLUMN_IFLASTCHANGE: + rc = SNMP_ERR_NOTWRITABLE; + break; + + /* + * ifInOctets(10)/COUNTER/ASN_COUNTER/u_long(u_long)//l/A/w/e/r/d/h + */ + case COLUMN_IFINOCTETS: + rc = SNMP_ERR_NOTWRITABLE; + break; + + /* + * ifInUcastPkts(11)/COUNTER/ASN_COUNTER/u_long(u_long)//l/A/w/e/r/d/h + */ + case COLUMN_IFINUCASTPKTS: + rc = SNMP_ERR_NOTWRITABLE; + break; + + /* + * ifInNUcastPkts(12)/COUNTER/ASN_COUNTER/u_long(u_long)//l/A/w/e/r/d/h + */ + case COLUMN_IFINNUCASTPKTS: + rc = SNMP_ERR_NOTWRITABLE; + break; + + /* + * ifInDiscards(13)/COUNTER/ASN_COUNTER/u_long(u_long)//l/A/w/e/r/d/h + */ + case COLUMN_IFINDISCARDS: + rc = SNMP_ERR_NOTWRITABLE; + break; + + /* + * ifInErrors(14)/COUNTER/ASN_COUNTER/u_long(u_long)//l/A/w/e/r/d/h + */ + case COLUMN_IFINERRORS: + rc = SNMP_ERR_NOTWRITABLE; + break; + + /* + * ifInUnknownProtos(15)/COUNTER/ASN_COUNTER/u_long(u_long)//l/A/w/e/r/d/h + */ + case COLUMN_IFINUNKNOWNPROTOS: + rc = SNMP_ERR_NOTWRITABLE; + break; + + /* + * ifOutOctets(16)/COUNTER/ASN_COUNTER/u_long(u_long)//l/A/w/e/r/d/h + */ + case COLUMN_IFOUTOCTETS: + rc = SNMP_ERR_NOTWRITABLE; + break; + + /* + * ifOutUcastPkts(17)/COUNTER/ASN_COUNTER/u_long(u_long)//l/A/w/e/r/d/h + */ + case COLUMN_IFOUTUCASTPKTS: + rc = SNMP_ERR_NOTWRITABLE; + break; + + /* + * ifOutNUcastPkts(18)/COUNTER/ASN_COUNTER/u_long(u_long)//l/A/w/e/r/d/h + */ + case COLUMN_IFOUTNUCASTPKTS: + rc = SNMP_ERR_NOTWRITABLE; + break; + + /* + * ifOutDiscards(19)/COUNTER/ASN_COUNTER/u_long(u_long)//l/A/w/e/r/d/h + */ + case COLUMN_IFOUTDISCARDS: + rc = SNMP_ERR_NOTWRITABLE; + break; + + /* + * ifOutErrors(20)/COUNTER/ASN_COUNTER/u_long(u_long)//l/A/w/e/r/d/h + */ + case COLUMN_IFOUTERRORS: + rc = SNMP_ERR_NOTWRITABLE; + break; + + /* + * ifOutQLen(21)/GAUGE/ASN_GAUGE/u_long(u_long)//l/A/w/e/r/d/h + */ + case COLUMN_IFOUTQLEN: + rc = SNMP_ERR_NOTWRITABLE; + break; + + /* + * ifSpecific(22)/OBJECTID/ASN_OBJECT_ID/oid(oid)//L/A/w/e/r/d/h + */ + case COLUMN_IFSPECIFIC: + rc = SNMP_ERR_NOTWRITABLE; + break; + + default: /** We shouldn't get here */ + rc = SNMP_ERR_GENERR; + snmp_log(LOG_ERR, "unknown column %d in _ifTable_check_column\n", + column); + } + + return rc; +} /* _ifTable_check_column */ + +int +_mfd_ifTable_check_objects(netsnmp_mib_handler *handler, + netsnmp_handler_registration *reginfo, + netsnmp_agent_request_info *agtreq_info, + netsnmp_request_info *requests) +{ + ifTable_rowreq_ctx *rowreq_ctx = (ifTable_rowreq_ctx*) + netsnmp_container_table_row_extract(requests); + netsnmp_table_request_info *tri; + int rc; + + DEBUGMSGTL(("internal:ifTable:_mfd_ifTable_check_objects", + "called\n")); + + netsnmp_assert(NULL != rowreq_ctx); + + for (; requests; requests = requests->next) { + + /* + * get column number from table request info, and check that column + */ + tri = netsnmp_extract_table_info(requests); + if (NULL == tri) + continue; + + rc = _ifTable_check_column(rowreq_ctx, requests->requestvb, + tri->colnum); + if (rc) { + netsnmp_request_set_error(requests, SNMP_VALIDATE_ERR(rc)); + break; + } + + } /* for results */ + + return SNMP_ERR_NOERROR; +} /* _mfd_ifTable_check_objects */ + +/*---------------------------------------------------------------------- + * + * SET: check dependencies + * + *---------------------------------------------------------------------*/ +/* + * @internal + * Check dependencies wrapper + */ +static int +_mfd_ifTable_check_dependencies(netsnmp_mib_handler *handler, + netsnmp_handler_registration *reginfo, + netsnmp_agent_request_info *agtreq_info, + netsnmp_request_info *requests) +{ + int rc; + ifTable_rowreq_ctx *rowreq_ctx = (ifTable_rowreq_ctx*) + netsnmp_container_table_row_extract(requests); + DEBUGMSGTL(("internal:ifTable:_mfd_ifTable_check_dependencies", + "called\n")); + + netsnmp_assert(NULL != rowreq_ctx); + + rc = ifTable_check_dependencies(rowreq_ctx); + if (rc) { + DEBUGMSGTL(("ifTable:mfd", "error %d from " + "ifTable_check_dependencies\n", rc)); + netsnmp_request_set_error_all(requests, SNMP_VALIDATE_ERR(rc)); + } + + return SNMP_ERR_NOERROR; +} /* _mfd_ifTable_check_dependencies */ + +/*---------------------------------------------------------------------- + * + * SET: Undo setup + * + *---------------------------------------------------------------------*/ +/* + * @internal + * Set the value for a particular column + */ +NETSNMP_STATIC_INLINE int +_ifTable_undo_setup_column(ifTable_rowreq_ctx * rowreq_ctx, int column) +{ + int rc = SNMPERR_SUCCESS; + + DEBUGMSGTL(("internal:ifTable:_ifTable_undo_setup_column", + "called for %d\n", column)); + + netsnmp_assert(NULL != rowreq_ctx); + + switch (column) { + + /* + * ifAdminStatus(7)/INTEGER/ASN_INTEGER/long(u_long)//l/A/W/E/r/d/h + */ + case COLUMN_IFADMINSTATUS: + rowreq_ctx->column_set_flags |= COLUMN_IFADMINSTATUS_FLAG; + rc = ifAdminStatus_undo_setup(rowreq_ctx); + break; + + default: + snmp_log(LOG_ERR, + "unknown column %d in _ifTable_undo_setup_column\n", + column); + break; + } + + return rc; +} /* _ifTable_undo_setup_column */ + +int +_mfd_ifTable_undo_setup_allocate(ifTable_rowreq_ctx *rowreq_ctx) +{ + int rc = MFD_SUCCESS; + + if (NULL == rowreq_ctx) + return MFD_ERROR; + + /* + * other tables share our container/context and call + * this function. so we need to check and see if + * someone else already allocated the ifentry + */ + if (NULL == rowreq_ctx->undo) { + rowreq_ctx->undo = ifTable_allocate_data(); + if (NULL == rowreq_ctx->undo) { + /** msg already logged */ + rc = SNMP_ERR_RESOURCEUNAVAILABLE; + } + else { + rowreq_ctx->undo->ifentry = + netsnmp_access_interface_entry_create(rowreq_ctx->data.ifentry-> + name, + rowreq_ctx->data.ifentry-> + index); + if (NULL == rowreq_ctx->undo->ifentry) { + rc = SNMP_ERR_RESOURCEUNAVAILABLE; + ifTable_release_data(rowreq_ctx->undo); + rowreq_ctx->undo = NULL; + } + else { + netsnmp_access_interface_entry_copy(rowreq_ctx->undo->ifentry, + rowreq_ctx->data.ifentry); + netsnmp_assert(0 == rowreq_ctx->undo_ref_count); + } + } + } + ++rowreq_ctx->undo_ref_count; + DEBUGMSGTL(("internal:ifTable:_mfd_ifTable_undo_setup_allocate", + "++undo_refcount = %d\n",rowreq_ctx->undo_ref_count)); + + return rc; +} + +/** + * @internal + * undo setup + */ +int +_mfd_ifTable_undo_setup(netsnmp_mib_handler *handler, + netsnmp_handler_registration *reginfo, + netsnmp_agent_request_info *agtreq_info, + netsnmp_request_info *requests) +{ + int rc; + ifTable_rowreq_ctx *rowreq_ctx = (ifTable_rowreq_ctx*) + netsnmp_container_table_row_extract(requests); + + DEBUGMSGTL(("internal:ifTable:_mfd_ifTable_undo_setup", "called\n")); + + netsnmp_assert(NULL != rowreq_ctx); + + /* + * allocate undo context + */ + rc = _mfd_ifTable_undo_setup_allocate(rowreq_ctx); + if (MFD_SUCCESS != rc) { + netsnmp_request_set_error_all(requests, rc); + return SNMP_ERR_NOERROR; + } + + /* + * row undo setup + */ + rc = ifTable_undo_setup(rowreq_ctx); + if (MFD_SUCCESS != rc) { + DEBUGMSGTL(("ifTable:mfd", "error %d from " + "ifTable_undo_setup\n", rc)); + netsnmp_request_set_error_all(requests, SNMP_VALIDATE_ERR(rc)); + } else { + /* + * column undo setup + */ + netsnmp_table_request_info *tri; + for (; requests; requests = requests->next) { + /* + * set column data + */ + tri = netsnmp_extract_table_info(requests); + if (NULL == tri) + continue; + + rc = _ifTable_undo_setup_column(rowreq_ctx, tri->colnum); + if (MFD_SUCCESS != rc) { + DEBUGMSGTL(("ifTable:mfd", "error %d from " + "ifTable_undo_setup_column\n", rc)); + netsnmp_set_request_error(agtreq_info, requests, + SNMP_VALIDATE_ERR(rc)); + } + } /* for results */ + } + + return SNMP_ERR_NOERROR; +} /* _mfd_ifTable_undo_setup */ + +void +_mfd_ifTable_undo_setup_release(ifTable_rowreq_ctx *rowreq_ctx) +{ + netsnmp_assert(rowreq_ctx->undo_ref_count > 0); + --rowreq_ctx->undo_ref_count; + snmp_log(LOG_ERR, "undo_refcount at %d\n", rowreq_ctx->undo_ref_count); + + if (0 == rowreq_ctx->undo_ref_count) { + netsnmp_access_interface_entry_free(rowreq_ctx->undo->ifentry); + ifTable_release_data(rowreq_ctx->undo); + rowreq_ctx->undo = NULL; + } +} + +/** + * @internal + * undo setup + */ +int +_mfd_ifTable_undo_cleanup(netsnmp_mib_handler *handler, + netsnmp_handler_registration *reginfo, + netsnmp_agent_request_info *agtreq_info, + netsnmp_request_info *requests) +{ + ifTable_rowreq_ctx *rowreq_ctx = (ifTable_rowreq_ctx*) + netsnmp_container_table_row_extract(requests); + int rc; + + DEBUGMSGTL(("internal:ifTable:_mfd_ifTable_undo_cleanup", "called\n")); + + /* + * failed row create in early stages has no rowreq_ctx + */ + if (NULL == rowreq_ctx) + return MFD_SUCCESS; + + /* + * call user cleanup + */ + rc = ifTable_undo_cleanup(rowreq_ctx); + if (MFD_SUCCESS != rc) { + /* + * nothing we can do about it but log it + */ + DEBUGMSGTL(("ifTable:mfd", "error %d from " + "ifTable_undo_cleanup\n", rc)); + } + + /* + * release undo context, if needed + */ + _mfd_ifTable_undo_setup_release(rowreq_ctx); + + + return SNMP_ERR_NOERROR; +} /* _mfd_ifTable_undo_cleanup */ + +/*---------------------------------------------------------------------- + * + * SET: Set values + * + *---------------------------------------------------------------------*/ +/* + * @internal + * Set the value for a particular column + */ +NETSNMP_STATIC_INLINE int +_ifTable_set_column(ifTable_rowreq_ctx * rowreq_ctx, + netsnmp_variable_list * var, int column) +{ + int rc = SNMPERR_SUCCESS; + + DEBUGMSGTL(("internal:ifTable:_ifTable_set_column", + "called for %d\n", column)); + + netsnmp_assert(NULL != rowreq_ctx); + + switch (column) { + + /* + * ifAdminStatus(7)/INTEGER/ASN_INTEGER/long(u_long)//l/A/W/E/r/d/h + */ + case COLUMN_IFADMINSTATUS: + rowreq_ctx->column_set_flags |= COLUMN_IFADMINSTATUS_FLAG; + rc = ifAdminStatus_set(rowreq_ctx, *((u_long *) var->val.string)); + break; + + default: + snmp_log(LOG_ERR, "unknown column %d in _ifTable_set_column\n", + column); + rc = SNMP_ERR_GENERR; + break; + } + + return rc; +} /* _ifTable_set_column */ + +int +_mfd_ifTable_set_values(netsnmp_mib_handler *handler, + netsnmp_handler_registration *reginfo, + netsnmp_agent_request_info *agtreq_info, + netsnmp_request_info *requests) +{ + ifTable_rowreq_ctx *rowreq_ctx = (ifTable_rowreq_ctx*) + netsnmp_container_table_row_extract(requests); + netsnmp_table_request_info *tri; + int rc = SNMP_ERR_NOERROR; + + DEBUGMSGTL(("internal:ifTable:_mfd_ifTable_set_values", "called\n")); + + netsnmp_assert(NULL != rowreq_ctx); + + rowreq_ctx->column_set_flags = 0; + for (; requests; requests = requests->next) { + /* + * set column data + */ + tri = netsnmp_extract_table_info(requests); + if (NULL == tri) + continue; + + rc = _ifTable_set_column(rowreq_ctx, + requests->requestvb, tri->colnum); + if (MFD_SUCCESS != rc) { + DEBUGMSGTL(("ifTable:mfd", "error %d from " + "ifTable_set_column\n", rc)); + netsnmp_set_request_error(agtreq_info, requests, + SNMP_VALIDATE_ERR(rc)); + } + } /* for results */ + + return SNMP_ERR_NOERROR; +} /* _mfd_ifTable_set_values */ + +/*---------------------------------------------------------------------- + * + * SET: commit + * + *---------------------------------------------------------------------*/ +/** + * @internal + * commit the values + */ +int +_mfd_ifTable_commit(netsnmp_mib_handler *handler, + netsnmp_handler_registration *reginfo, + netsnmp_agent_request_info *agtreq_info, + netsnmp_request_info *requests) +{ + int rc; + ifTable_rowreq_ctx *rowreq_ctx = (ifTable_rowreq_ctx*) + netsnmp_container_table_row_extract(requests); + + DEBUGMSGTL(("internal:ifTable:_mfd_ifTable_commit", "called\n")); + + netsnmp_assert(NULL != rowreq_ctx); + + rc = ifTable_commit(rowreq_ctx); + if (MFD_SUCCESS != rc) { + DEBUGMSGTL(("ifTable:mfd", "error %d from " + "ifTable_commit\n", rc)); + netsnmp_request_set_error_all(requests, SNMP_VALIDATE_ERR(rc)); + } + + if (rowreq_ctx->rowreq_flags & MFD_ROW_DIRTY) { + /* + * if we successfully commited this row, set the dirty flag. Use the + * current value + 1 (i.e. dirty = # rows changed). + * this is checked in post_request... + */ + ifTable_dirty_set(ifTable_dirty_get() + 1); /* set table dirty flag */ + } + + if (rowreq_ctx->rowreq_flags & MFD_ROW_DIRTY) { + /* + * if we successfully commited this row, set the dirty flag. Use the + * current value + 1 (i.e. dirty = # rows changed). + * this is checked in post_request... + */ + ifTable_dirty_set(ifTable_dirty_get() + 1); /* set table dirty flag */ + } + + return SNMP_ERR_NOERROR; +} + +int +_mfd_ifTable_undo_commit(netsnmp_mib_handler *handler, + netsnmp_handler_registration *reginfo, + netsnmp_agent_request_info *agtreq_info, + netsnmp_request_info *requests) +{ + int rc; + ifTable_rowreq_ctx *rowreq_ctx = (ifTable_rowreq_ctx*) + netsnmp_container_table_row_extract(requests); + + DEBUGMSGTL(("internal:ifTable:_mfd_ifTable_undo_commit", "called\n")); + + netsnmp_assert(NULL != rowreq_ctx); + + if (rowreq_ctx->rowreq_flags & MFD_ROW_DIRTY) { + u_int d = ifTable_dirty_get(); + + netsnmp_assert(d != 0); + if (d) + ifTable_dirty_set(d - 1); + } + + rc = ifTable_undo_commit(rowreq_ctx); + if (MFD_SUCCESS != rc) { + /* + * nothing we can do about it but log it + */ + DEBUGMSGTL(("ifTable:mfd", "error %d from " + "ifTable_undo_commit\n", rc)); + } + + if (rowreq_ctx->rowreq_flags & MFD_ROW_DIRTY) { + snmp_log(LOG_WARNING, + "ifTable row dirty flag still set after undo_commit\n"); + rowreq_ctx->rowreq_flags &= ~MFD_ROW_DIRTY; + } + + return SNMP_ERR_NOERROR; +} /* _mfd_ifTable_commit */ + +/*---------------------------------------------------------------------- + * + * SET: Undo + * + *---------------------------------------------------------------------*/ +/** + * @internal + * undo the value for a particular column + */ +NETSNMP_STATIC_INLINE int +_ifTable_undo_column(ifTable_rowreq_ctx * rowreq_ctx, + netsnmp_variable_list * var, int column) +{ + int rc = SNMPERR_SUCCESS; + + DEBUGMSGTL(("internal:ifTable:_ifTable_undo_column", + "called for %d\n", column)); + + netsnmp_assert(NULL != rowreq_ctx); + + switch (column) { + + /* + * ifAdminStatus(7)/INTEGER/ASN_INTEGER/long(u_long)//l/A/W/E/r/d/h + */ + case COLUMN_IFADMINSTATUS: + rc = ifAdminStatus_undo(rowreq_ctx); + break; + + default: + snmp_log(LOG_ERR, "unknown column %d in _ifTable_undo_column\n", + column); + break; + } + + return rc; +} /* _ifTable_undo_column */ + +int +_mfd_ifTable_undo_values(netsnmp_mib_handler *handler, + netsnmp_handler_registration *reginfo, + netsnmp_agent_request_info *agtreq_info, + netsnmp_request_info *requests) +{ + int rc; + ifTable_rowreq_ctx *rowreq_ctx = (ifTable_rowreq_ctx*) + netsnmp_container_table_row_extract(requests); + netsnmp_table_request_info *tri; + + DEBUGMSGTL(("internal:ifTable:_mfd_ifTable_undo_values", "called\n")); + + netsnmp_assert(NULL != rowreq_ctx); + + rc = ifTable_undo(rowreq_ctx); + if (MFD_SUCCESS != rc) { + /* + * nothing we can do about it but log it + */ + DEBUGMSGTL(("ifTable:mfd", "error %d from " "ifTable_undo\n", rc)); + } + + for (; requests; requests = requests->next) { + /* + * set column data + */ + tri = netsnmp_extract_table_info(requests); + if (NULL == tri) + continue; + + rc = _ifTable_undo_column(rowreq_ctx, requests->requestvb, + tri->colnum); + if (MFD_SUCCESS != rc) { + /* + * nothing we can do about it but log it + */ + DEBUGMSGTL(("ifTable:mfd", "error %d from " + "ifTable_undo_column\n", rc)); + } + } /* for results */ + + return SNMP_ERR_NOERROR; +} /* _mfd_ifTable_undo_values */ + +/*---------------------------------------------------------------------- + * + * SET: irreversible commit + * + *---------------------------------------------------------------------*/ +/** + * @internal + * commit irreversible actions + */ +int +_mfd_ifTable_irreversible_commit(netsnmp_mib_handler *handler, + netsnmp_handler_registration *reginfo, + netsnmp_agent_request_info *agtreq_info, + netsnmp_request_info *requests) +{ + ifTable_rowreq_ctx *rowreq_ctx = (ifTable_rowreq_ctx*) + netsnmp_container_table_row_extract(requests); + + DEBUGMSGTL(("internal:ifTable:_mfd_ifTable_irreversible:commit", + "called\n")); + + netsnmp_assert(NULL != rowreq_ctx); + + /* + * check for and handle row creation/deletion + * and update column exist flags... + */ + if (rowreq_ctx->rowreq_flags & MFD_ROW_DELETED) { + CONTAINER_REMOVE(ifTable_if_ctx.container, rowreq_ctx); + } else { + if (rowreq_ctx->column_set_flags) { + rowreq_ctx->column_set_flags = 0; + } + } + + return SNMP_ERR_NOERROR; +} /* _mfd_ifTable_irreversible_commit */ +#endif /* NETSNMP_NO_WRITE_SUPPORT || NETSNMP_DISABLE_SET_SUPPORT */ + +/*********************************************************************** + * + * DATA ACCESS + * + ***********************************************************************/ +static void _container_free(netsnmp_container *container); + +/** + * @internal + */ +static int +_cache_load(netsnmp_cache * cache, void *vmagic) +{ + DEBUGMSGTL(("internal:ifTable:_cache_load", "called\n")); + + if ((NULL == cache) || (NULL == cache->magic)) { + snmp_log(LOG_ERR, "invalid cache for ifTable_cache_load\n"); + return -1; + } + + /** should only be called for an invalid or expired cache */ + netsnmp_assert((0 == cache->valid) || (1 == cache->expired)); + + /* + * call user code + */ + return ifTable_container_load((netsnmp_container *) cache->magic); +} /* _cache_load */ + +/** + * @internal + */ +static void +_cache_free(netsnmp_cache * cache, void *magic) +{ + netsnmp_container *container; + + DEBUGMSGTL(("internal:ifTable:_cache_free", "called\n")); + + if ((NULL == cache) || (NULL == cache->magic)) { + snmp_log(LOG_ERR, "invalid cache in ifTable_cache_free\n"); + return; + } + + container = (netsnmp_container *) cache->magic; + + _container_free(container); +} /* _cache_free */ + +/** + * @internal + */ +static void +_container_item_free(ifTable_rowreq_ctx * rowreq_ctx, void *context) +{ + DEBUGMSGTL(("internal:ifTable:_container_item_free", "called\n")); + + if (NULL == rowreq_ctx) + return; + + ifTable_release_rowreq_ctx(rowreq_ctx); +} /* _container_item_free */ + +/** + * @internal + */ +static void +_container_free(netsnmp_container *container) +{ + DEBUGMSGTL(("internal:ifTable:_container_free", "called\n")); + + if (NULL == container) { + snmp_log(LOG_ERR, "invalid container in ifTable_container_free\n"); + return; + } + + /* + * call user code + */ + ifTable_container_free(container); + + /* + * free all items. inefficient, but easy. + */ + CONTAINER_CLEAR(container, + (netsnmp_container_obj_func *) _container_item_free, + NULL); +} /* _container_free */ + +/** + * @internal + * initialize the container with functions or wrappers + */ +void +_ifTable_container_init(ifTable_interface_ctx * if_ctx) +{ + DEBUGMSGTL(("internal:ifTable:_ifTable_container_init", "called\n")); + + /* + * cache init + */ + if_ctx->cache = netsnmp_cache_create(30, /* timeout in seconds */ + _cache_load, _cache_free, + ifTable_oid, ifTable_oid_size); + + if (NULL == if_ctx->cache) { + snmp_log(LOG_ERR, "error creating cache for ifTable\n"); + return; + } + + if_ctx->cache->flags = NETSNMP_CACHE_DONT_INVALIDATE_ON_SET; + + ifTable_container_init(&if_ctx->container, if_ctx->cache); + if (NULL == if_ctx->container) + if_ctx->container = + netsnmp_container_find("ifTable:table_container"); + if (NULL == if_ctx->container) { + snmp_log(LOG_ERR, "error creating container in " + "ifTable_container_init\n"); + return; + } + + if_ctx->container->container_name = strdup("ifTable container"); + if (NULL != if_ctx->cache) + if_ctx->cache->magic = (void *) if_ctx->container; +} /* _ifTable_container_init */ + +/** + * @internal + * shutdown the container with functions or wrappers + */ +void +_ifTable_container_shutdown(ifTable_interface_ctx * if_ctx) +{ + DEBUGMSGTL(("internal:ifTable:_ifTable_container_shutdown", + "called\n")); + + ifTable_container_shutdown(if_ctx->container); + + _container_free(if_ctx->container); + +} /* _ifTable_container_shutdown */ + + +#ifndef NETSNMP_FEATURE_REMOVE_IFTABLE_EXTERNAL_ACCESS +ifTable_rowreq_ctx * +ifTable_row_find_by_mib_index(ifTable_mib_index * mib_idx) +{ + ifTable_rowreq_ctx *rowreq_ctx; + oid oid_tmp[MAX_OID_LEN]; + netsnmp_index oid_idx; + int rc; + + /* + * set up storage for OID + */ + oid_idx.oids = oid_tmp; + oid_idx.len = sizeof(oid_tmp) / sizeof(oid); + + /* + * convert + */ + rc = ifTable_index_to_oid(&oid_idx, mib_idx); + if (MFD_SUCCESS != rc) + return NULL; + + rowreq_ctx = (ifTable_rowreq_ctx*)CONTAINER_FIND(ifTable_if_ctx.container, &oid_idx); + + return rowreq_ctx; +} +#endif /* NETSNMP_FEATURE_REMOVE_IFTABLE_EXTERNAL_ACCESS */ |