/*
* The helper handler that takes care of passing a specific row of
* data down to the lower handler(s). The table_container helper
* has already taken care of identifying the appropriate row of the
* table (and converting GETNEXT requests into an equivalent GET request)
* So all we need to do here is make sure that the row is accessible
* using tdata-style retrieval techniques as well.
*/
int
_netsnmp_tdata_helper_handler (netsnmp_mib_handler * handler,
netsnmp_handler_registration * reginfo,
netsnmp_agent_request_info * reqinfo, netsnmp_request_info * requests)
{
netsnmp_tdata *table = (netsnmp_tdata *) handler->myvoid;
netsnmp_request_info *request;
netsnmp_table_request_info *table_info;
netsnmp_tdata_row *row;
int need_processing = 1;
switch (reqinfo->mode)
{
case MODE_GET:
need_processing = 0; /* only need processing if some vars found */
/** Fall through */
#ifndef NETSNMP_NO_WRITE_SUPPORT
case MODE_SET_RESERVE1:
#endif /* NETSNMP_NO_WRITE_SUPPORT */
for (request = requests; request; request = request->next)
{
if (request->processed)
continue;
table_info = netsnmp_extract_table_info (request);
if (!table_info)
{
netsnmp_assert (table_info); /* yes, this will always hit */
netsnmp_set_request_error (reqinfo, request, SNMP_ERR_GENERR);
continue; /* eek */
}
row = (netsnmp_tdata_row *) netsnmp_container_table_row_extract (request);
if (!row && (reqinfo->mode == MODE_GET))
{
netsnmp_assert (row); /* yes, this will always hit */
netsnmp_set_request_error (reqinfo, request, SNMP_ERR_GENERR);
continue; /* eek */
}
++need_processing;
netsnmp_request_add_list_data (request, netsnmp_create_data_list (TABLE_TDATA_TABLE, table, NULL));
netsnmp_request_add_list_data (request, netsnmp_create_data_list (TABLE_TDATA_ROW, row, NULL));
}
/** skip next handler if processing not needed */
if (!need_processing)
handler->flags |= MIB_HANDLER_AUTO_NEXT_OVERRIDE_ONCE;
}
/* next handler called automatically - 'AUTO_NEXT' */
return SNMP_ERR_NOERROR;
}
/**
* Initialize the table dot11UsrLinkTable
* (Define its contents and how it's structured)
*/
void
initialize_table_dot11UsrLinkTable(void)
{
dot11UsrLinkTable_registration_ptr user_context;
u_long flags;
DEBUGMSGTL(("verbose:dot11UsrLinkTable:initialize_table_dot11UsrLinkTable","called\n"));
/*
* TODO:301:o: Perform dot11UsrLinkTable one-time table initialization.
*/
/*
* TODO:302:o: |->Initialize dot11UsrLinkTable user context
* if you'd like to pass in a pointer to some data for this
* table, allocate or set it up here.
*/
/*
* a netsnmp_data_list is a simple way to store void pointers. A simple
* string token is used to add, find or remove pointers.
*/
user_context = netsnmp_create_data_list("dot11UsrLinkTable", NULL, NULL);
/*
* No support for any flags yet, but in the future you would
* set any flags here.
*/
flags = 0;
mad_dev_oid(dot11UsrLinkTable_oid,USRLINKTABLE,&dot11UsrLinkTable_oid_size,enterprise_pvivate_oid);
/*
* call interface initialization code
*/
_dot11UsrLinkTable_initialize_interface(user_context, flags);
} /* initialize_table_dot11UsrLinkTable */
/** adds data to a datalist
* @param head a pointer to the head node of a data_list
* @param name the name of the node to cache the data.
* @param data the data to be stored under that name
* @param beer A function that can free the data pointer (in the future)
* @return a newly created data_list node which was inserted in the list
*/
NETSNMP_INLINE netsnmp_data_list *
netsnmp_data_list_add_data(netsnmp_data_list **head, const char *name,
void *data, Netsnmp_Free_List_Data * beer)
{
netsnmp_data_list *ptr;
netsnmp_data_list *node = netsnmp_create_data_list(name, data, beer);
if(NULL == node) {
snmp_log(LOG_ERR,"could not allocte memory for node.");
return NULL;
}
if (!*head) {
*head = node;
return node;
}
/*
* xxx-rks: check for duplicate names?
*/
for (ptr = *head; ptr->next != NULL; ptr = ptr->next) {
/*
* noop
*/
}
if (ptr) /* should always be true */
ptr->next = node;
return node;
}
/** updates a given cache depending on whether it needs to or not.
*/
int
_netsnmp_stash_cache_load( netsnmp_cache *cache, void *magic )
{
netsnmp_mib_handler *handler = cache->cache_hint->handler;
netsnmp_handler_registration *reginfo = cache->cache_hint->reginfo;
netsnmp_agent_request_info *reqinfo = cache->cache_hint->reqinfo;
netsnmp_request_info *requests = cache->cache_hint->requests;
netsnmp_stash_cache_info *cinfo = (netsnmp_stash_cache_info*) magic;
int old_mode;
int ret;
if (!cinfo) {
cinfo = netsnmp_get_new_stash_cache();
cache->magic = cinfo;
}
/* change modes to the GET_STASH mode */
old_mode = reqinfo->mode;
reqinfo->mode = MODE_GET_STASH;
netsnmp_agent_add_list_data(reqinfo,
netsnmp_create_data_list(STASH_CACHE_NAME,
&cinfo->cache, NULL));
/* have the next handler fill stuff in and switch modes back */
ret = netsnmp_call_next_handler(handler->next, reginfo, reqinfo, requests);
reqinfo->mode = old_mode;
return ret;
}
/**
* Initialize the table ipv4InterfaceTable
* (Define its contents and how it's structured)
*/
void
initialize_table_ipv4InterfaceTable(void)
{
u_long flags;
DEBUGMSGTL(("verbose:ipv4InterfaceTable:initialize_table_ipv4InterfaceTable", "called\n"));
/*
* TODO:301:o: Perform ipv4InterfaceTable one-time table initialization.
*/
/*
* TODO:302:o: |->Initialize ipv4InterfaceTable user context
* if you'd like to pass in a pointer to some data for this
* table, allocate or set it up here.
*/
/*
* a netsnmp_data_list is a simple way to store void pointers. A simple
* string token is used to add, find or remove pointers.
*/
ipv4InterfaceTable_user_context_p =
netsnmp_create_data_list("ipv4InterfaceTable", NULL, NULL);
/*
* No support for any flags yet, but in the future you would
* set any flags here.
*/
flags = 0;
/*
* call interface initialization code
*/
_ipv4InterfaceTable_initialize_interface
(ipv4InterfaceTable_user_context_p, flags);
} /* initialize_table_ipv4InterfaceTable */
/** registers a table_dataset so that the "add_row" snmpd.conf token
* can be used to add data to this table. If registration_name is
* NULL then the name used when the table was created will be used
* instead.
*
* @todo create a properly free'ing registeration pointer for the
* datalist, and get the datalist freed at shutdown.
*/
void
netsnmp_register_auto_data_table(netsnmp_table_data_set *table_set,
char *registration_name)
{
data_set_tables *tables;
tables = SNMP_MALLOC_TYPEDEF(data_set_tables);
if (!tables)
return;
tables->table_set = table_set;
if (!registration_name) {
registration_name = table_set->table->name;
}
netsnmp_add_list_data(&auto_tables, netsnmp_create_data_list(registration_name, tables, NULL)); /* XXX */
}
/* caches information (in the request) we'll need at a later point in time */
static ti_cache_info *
netsnmp_iterator_remember(netsnmp_request_info *request,
oid *oid_to_save,
size_t oid_to_save_len,
void *callback_data_context,
void *callback_loop_context,
netsnmp_iterator_info *iinfo)
{
ti_cache_info *ti_info;
if (!request || !oid_to_save || oid_to_save_len > MAX_OID_LEN)
return NULL;
/* extract existing cached state */
ti_info = netsnmp_request_get_list_data(request, TI_REQUEST_CACHE);
/* no existing cached state. make a new one. */
if (!ti_info) {
ti_info = SNMP_MALLOC_TYPEDEF(ti_cache_info);
if (ti_info == NULL)
return NULL;
netsnmp_request_add_list_data(request,
netsnmp_create_data_list
(TI_REQUEST_CACHE,
ti_info,
netsnmp_free_ti_cache));
}
/* free existing cache before replacing */
if (ti_info->data_context && ti_info->free_context)
(ti_info->free_context)(ti_info->data_context, iinfo);
/* maybe generate it from the loop context? */
if (iinfo->make_data_context && !callback_data_context) {
callback_data_context =
(iinfo->make_data_context)(callback_loop_context, iinfo);
}
/* save data as requested */
ti_info->data_context = callback_data_context;
ti_info->free_context = iinfo->free_data_context;
ti_info->best_match_len = oid_to_save_len;
ti_info->iinfo = iinfo;
if (oid_to_save_len)
memcpy(ti_info->best_match, oid_to_save, oid_to_save_len * sizeof(oid));
return ti_info;
}
/*
* The helper handler that takes care of passing a specific row of
* data down to the lower handler(s). The table_container helper
* has already taken care of identifying the appropriate row of the
* table (and converting GETNEXT requests into an equivalent GET request)
* So all we need to do here is make sure that the row is accessible
* using tdata-style retrieval techniques as well.
*/
int
_netsnmp_tdata_helper_handler(netsnmp_mib_handler *handler,
netsnmp_handler_registration *reginfo,
netsnmp_agent_request_info *reqinfo,
netsnmp_request_info *requests)
{
netsnmp_tdata *table = (netsnmp_tdata *) handler->myvoid;
netsnmp_request_info *request;
netsnmp_table_request_info *table_info;
netsnmp_tdata_row *row;
switch ( reqinfo->mode ) {
case MODE_GET:
case MODE_SET_RESERVE1:
for (request = requests; request; request = request->next) {
if (request->processed)
continue;
table_info = netsnmp_extract_table_info(request);
if (!table_info)
continue; /* ack */
row = netsnmp_container_table_row_extract( request );
netsnmp_request_add_list_data(request,
netsnmp_create_data_list(
TABLE_TDATA_TABLE, table, NULL));
netsnmp_request_add_list_data(request,
netsnmp_create_data_list(
TABLE_TDATA_ROW, row, NULL));
}
}
/* next handler called automatically - 'AUTO_NEXT' */
return SNMP_ERR_NOERROR;
}
/** Insert the cache information for a given request (PDU) */
void
netsnmp_cache_reqinfo_insert(netsnmp_cache* cache,
netsnmp_agent_request_info * reqinfo,
const char *name)
{
char *cache_name = _build_cache_name(name);
if (NULL == netsnmp_agent_get_list_data(reqinfo, cache_name)) {
DEBUGMSGTL(("verbose:helper:cache_handler", " adding '%s' to %p\n",
cache_name, reqinfo));
netsnmp_agent_add_list_data(reqinfo,
netsnmp_create_data_list(cache_name,
cache, NULL));
}
SNMP_FREE(cache_name);
}
/** registers to store a data_list set of data at persistent storage time
*
* @param datalist the data to be saved
* @param type the name of the application to save the data as. If left NULL the default application name that was registered during the init_snmp call will be used (recommended).
* @param token the unique token identifier string to use as the first word in the persistent file line.
* @param data_list_save_ptr a function pointer which will be called to save the rest of the data to a buffer.
* @param data_list_read_ptr a function pointer which can read the remainder of a saved line and return the application specific void * pointer.
* @param data_list_free_ptr a function pointer which will be passed to the data node for freeing it in the future when/if the list/node is cleaned up or destroyed.
*/
void
netsnmp_register_save_list(netsnmp_data_list **datalist,
const char *type, const char *token,
Netsnmp_Save_List_Data *data_list_save_ptr,
Netsnmp_Read_List_Data *data_list_read_ptr,
Netsnmp_Free_List_Data *data_list_free_ptr)
{
netsnmp_data_list_saveinfo *info;
if (!data_list_save_ptr && !data_list_read_ptr)
return;
info = SNMP_MALLOC_TYPEDEF(netsnmp_data_list_saveinfo);
if (!info) {
snmp_log(LOG_ERR, "couldn't malloc a netsnmp_data_list_saveinfo typedef");
return;
}
info->datalist = datalist;
info->token = token;
info->type = type;
if (!info->type) {
info->type = netsnmp_ds_get_string(NETSNMP_DS_LIBRARY_ID,
NETSNMP_DS_LIB_APPTYPE);
}
/* function which will save the data */
info->data_list_save_ptr = data_list_save_ptr;
if (data_list_save_ptr)
snmp_register_callback(SNMP_CALLBACK_LIBRARY, SNMP_CALLBACK_STORE_DATA,
netsnmp_save_all_data_callback, info);
/* function which will read the data back in */
info->data_list_read_ptr = data_list_read_ptr;
if (data_list_read_ptr) {
/** @todo netsnmp_register_save_list should handle the same token name being saved from different types? */
netsnmp_add_list_data(&saveHead,
netsnmp_create_data_list(token, info, NULL));
register_config_handler(type, token, netsnmp_read_data_callback,
NULL /* XXX */, NULL);
}
info->data_list_free_ptr = data_list_free_ptr;
}
int
process_set_requests(netsnmp_agent_request_info *agtreq_info,
netsnmp_request_info *requests,
table_container_data * tad, char *handler_name)
{
set_context context;
netsnmp_container *request_group;
/*
* create and save structure for set info
*/
request_group = (netsnmp_container*) netsnmp_agent_get_list_data
(agtreq_info, handler_name);
if (request_group == NULL) {
netsnmp_data_list *tmp;
request_group = netsnmp_container_find("request_group:"
"table_container");
request_group->compare = netsnmp_compare_netsnmp_index;
request_group->ncompare = netsnmp_ncompare_netsnmp_index;
DEBUGMSGTL(("table_array", "Grouping requests by oid\n"));
tmp = netsnmp_create_data_list(handler_name,
request_group,
release_netsnmp_request_groups);
netsnmp_agent_add_list_data(agtreq_info, tmp);
/*
* group requests.
*/
group_requests(agtreq_info, requests, request_group, tad);
}
/*
* process each group one at a time
*/
context.agtreq_info = agtreq_info;
context.tad = tad;
context.status = SNMP_ERR_NOERROR;
CONTAINER_FOR_EACH(request_group,
(netsnmp_container_obj_func*)process_set_group,
&context);
return context.status;
}
/** adds data to a datalist
* @param head a pointer to the head node of a data_list
* @param name the name of the node to cache the data.
* @param data the data to be stored under that name
* @param beer A function that can free the data pointer (in the future)
* @return a newly created data_list node which was inserted in the list
*/
NETSNMP_INLINE netsnmp_data_list *
netsnmp_data_list_add_data(netsnmp_data_list **head, const char *name,
void *data, Netsnmp_Free_List_Data * beer)
{
netsnmp_data_list *node;
if (!name) {
snmp_log(LOG_ERR,"no name provided.");
return NULL;
}
node = netsnmp_create_data_list(name, data, beer);
if(NULL == node) {
snmp_log(LOG_ERR,"could not allocate memory for node.");
return NULL;
}
netsnmp_add_list_data(head, node);
return node;
}
/** intended to be registerd as a .conf parser
* It should be registered using:
*
* register_app_config_handler("token", netsnmp_read_data_callback, XXX)
*
* where INFO_POINTER is a pointer to a netsnmp_data_list_saveinfo object
* containing apporpriate registration information
* @todo make netsnmp_read_data_callback deal with a free routine
*/
void
netsnmp_read_data_callback(const char *token, char *line) {
netsnmp_data_list_saveinfo *info;
char *dataname = NULL;
size_t dataname_len;
void *data = NULL;
/* find the stashed information about what we're parsing */
info = (netsnmp_data_list_saveinfo *) netsnmp_get_list_data(saveHead, token);
if (!info) {
snmp_log(LOG_WARNING, "netsnmp_read_data_callback called without previously registered subparser");
return;
}
/* read in the token */
line =
read_config_read_data(ASN_OCTET_STR, line,
&dataname, &dataname_len);
if (!line || !dataname)
return;
/* call the sub-parser to read the rest */
data = (info->data_list_read_ptr)(line, strlen(line));
if (!data) {
free(dataname);
return;
}
/* add to the datalist */
netsnmp_add_list_data(info->datalist,
netsnmp_create_data_list(dataname, data,
info->data_list_free_ptr));
return;
}
static int
_table_row_handler(netsnmp_mib_handler *handler,
netsnmp_handler_registration *reginfo,
netsnmp_agent_request_info *reqinfo,
netsnmp_request_info *requests)
{
int rc = SNMP_ERR_NOERROR;
netsnmp_request_info *req;
void *row;
/** sanity checks */
netsnmp_assert((NULL != handler) && (NULL != handler->myvoid));
netsnmp_assert((NULL != reginfo) && (NULL != reqinfo));
DEBUGMSGTL(("table_row", "Mode %s, Got request:\n",
se_find_label_in_slist("agent_mode",reqinfo->mode)));
/*
* First off, get our pointer from the handler.
* This contains the row that was actually registered.
* Make this available for each of the requests passed in.
*/
row = handler->myvoid;
for (req = requests; req; req=req->next)
netsnmp_request_add_list_data(req,
netsnmp_create_data_list(TABLE_ROW_DATA, row, NULL));
/*
* Then call the next handler, to actually process the request
*/
rc = netsnmp_call_next_handler(handler, reginfo, reqinfo, requests);
if (rc != SNMP_ERR_NOERROR) {
DEBUGMSGTL(("table_row", "next handler returned %d\n", rc));
}
return rc;
}
/** implements the table_iterator helper */
int
netsnmp_table_iterator_helper_handler(netsnmp_mib_handler *handler,
netsnmp_handler_registration
*reginfo,
netsnmp_agent_request_info *reqinfo,
netsnmp_request_info *requests)
{
netsnmp_table_registration_info *tbl_info;
oid coloid[MAX_OID_LEN];
size_t coloid_len;
int ret;
static oid myname[MAX_OID_LEN];
size_t myname_len;
int oldmode;
netsnmp_iterator_info *iinfo;
iinfo = (netsnmp_iterator_info *) handler->myvoid;
if (!iinfo || !reginfo || !reqinfo)
return SNMPERR_GENERR;
tbl_info = iinfo->table_reginfo;
/*
* copy in the table registration oid for later use
*/
coloid_len = reginfo->rootoid_len + 2;
memcpy(coloid, reginfo->rootoid, reginfo->rootoid_len * sizeof(oid));
coloid[reginfo->rootoid_len] = 1; /* table.entry node */
/*
* illegally got here if these functions aren't defined
*/
if (iinfo->get_first_data_point == NULL ||
iinfo->get_next_data_point == NULL) {
snmp_log(LOG_ERR,
"table_iterator helper called without data accessor functions\n");
return SNMP_ERR_GENERR;
}
/*
* XXXWWW: deal with SET caching
*/
#ifdef NOT_SERIALIZED
while (requests) /* XXX: currently only serialized */
#endif
{
/*
* XXXWWW: optimize by reversing loops (look through data only once)
*/
netsnmp_variable_list *results = NULL;
netsnmp_variable_list *index_search = NULL; /* WWW: move up? */
netsnmp_variable_list *free_this_index_search = NULL;
netsnmp_table_request_info *table_info =
netsnmp_extract_table_info(requests);
void *callback_loop_context = NULL;
void *callback_data_context = NULL;
void *callback_data_keep = NULL;
if (requests->processed != 0) {
#ifdef NOT_SERIALIZED
continue;
#else
return SNMP_ERR_NOERROR;
#endif
}
if (reqinfo->mode != MODE_GET && reqinfo->mode != MODE_GETNEXT && reqinfo->mode != MODE_GETBULK && /* XXX */
reqinfo->mode != MODE_SET_RESERVE1) {
goto skip_processing;
}
if (table_info->colnum > tbl_info->max_column) {
requests->processed = 1;
#ifdef NOT_SERIALIZED
break;
#else
return SNMP_ERR_NOERROR;
#endif
}
/*
* XXX: if loop through everything, these are never free'd
* since iterator returns NULL and thus we forget about
* these
*/
index_search = snmp_clone_varbind(table_info->indexes);
if (!index_search) {
/*
* hmmm.... invalid table?
*/
snmp_log(LOG_WARNING,
"invalid index list or failed malloc for table %s\n",
reginfo->handlerName);
return SNMP_ERR_NOERROR;
}
free_this_index_search = index_search;
/*
* below our minimum column?
*/
if (table_info->colnum < tbl_info->min_column) {
results =
(iinfo->get_first_data_point) (&callback_loop_context,
&callback_data_context,
index_search, iinfo);
if (iinfo->free_loop_context) {
(iinfo->free_loop_context) (callback_loop_context, iinfo);
callback_loop_context = NULL;
}
goto got_results;
}
/*
* XXX: do "only got some indexes"
*/
/*
* find the next legal result to return
*/
/*
* find the first node
*/
index_search =
(iinfo->get_first_data_point) (&callback_loop_context,
&callback_data_context,
index_search, iinfo);
/*
* table.entry.column node
*/
coloid[reginfo->rootoid_len + 1] = table_info->colnum;
switch (reqinfo->mode) {
case MODE_GETNEXT:
case MODE_GETBULK: /* XXXWWW */
/*
* loop through all data and find next one
*/
while (index_search) {
/*
* compare the node with previous results
*/
if (netsnmp_check_getnext_reply
(requests, coloid, coloid_len, index_search,
&results)) {
/*
* result is our current choice, so keep a pointer to
* the data that the lower handler wants us to
* remember (possibly freeing the last known "good"
* result data pointer)
*/
if (callback_data_keep && iinfo->free_data_context) {
(iinfo->free_data_context) (callback_data_keep,
iinfo);
callback_data_keep = NULL;
}
if (iinfo->make_data_context && !callback_data_context) {
callback_data_context =
(iinfo->
make_data_context) (callback_loop_context,
iinfo);
}
callback_data_keep = callback_data_context;
callback_data_context = NULL;
} else {
if (callback_data_context && iinfo->free_data_context)
(iinfo->free_data_context) (callback_data_context,
iinfo);
callback_data_context = NULL;
}
/*
* get the next node in the data chain
*/
index_search =
(iinfo->get_next_data_point) (&callback_loop_context,
&callback_data_context,
index_search, iinfo);
if (!index_search && !results &&
tbl_info->max_column > table_info->colnum) {
/*
* restart loop. XXX: Should cache this better
*/
table_info->colnum++;
coloid[reginfo->rootoid_len + 1] = table_info->colnum;
if (free_this_index_search != NULL)
snmp_free_varbind(free_this_index_search);
index_search = snmp_clone_varbind(table_info->indexes);
free_this_index_search = index_search;
if (callback_loop_context &&
iinfo->free_loop_context_at_end) {
(iinfo->free_loop_context_at_end)(callback_loop_context,
iinfo);
callback_loop_context = NULL;
}
if (iinfo->free_loop_context && callback_loop_context) {
(iinfo->free_loop_context) (callback_loop_context,
iinfo);
callback_loop_context = NULL;
}
if (callback_data_context && iinfo->free_data_context) {
(iinfo->free_data_context) (callback_data_context,
iinfo);
callback_data_context = NULL;
}
index_search =
(iinfo->
get_first_data_point) (&callback_loop_context,
&callback_data_context,
index_search, iinfo);
}
}
break;
case MODE_GET:
case MODE_SET_RESERVE1:
/*
* loop through all data till exact results are found
*/
while (index_search) {
build_oid_noalloc(myname, MAX_OID_LEN, &myname_len,
coloid, coloid_len, index_search);
if (snmp_oid_compare(myname, myname_len,
requests->requestvb->name,
requests->requestvb->name_length) ==
0) {
/*
* found the exact match, so we're done
*/
if (iinfo->make_data_context && !callback_data_context) {
callback_data_context =
(iinfo->
make_data_context) (callback_loop_context,
iinfo);
}
callback_data_keep = callback_data_context;
callback_data_context = NULL;
results = snmp_clone_varbind(index_search);
snmp_set_var_objid(results, myname, myname_len);
goto got_results;
} else {
/*
* free not-needed data context
*/
if (callback_data_context && iinfo->free_data_context) {
(iinfo->free_data_context) (callback_data_context,
iinfo);
callback_data_context = NULL;
}
}
/*
* get the next node in the data chain
*/
index_search =
(iinfo->get_next_data_point) (&callback_loop_context,
&callback_data_context,
index_search, iinfo);
}
break;
default:
/*
* the rest of the set states have been dealt with already
*/
goto got_results;
}
/*
* XXX: free index_search?
*/
if (callback_loop_context && iinfo->free_loop_context) {
(iinfo->free_loop_context) (callback_loop_context, iinfo);
callback_loop_context = NULL;
}
got_results: /* not milk */
/*
* This free_data_context call is required in the event that your
* get_next_data_point method allocates new memory, even during the
* calls where it eventually returns a NULL
*/
if (callback_data_context && iinfo->free_data_context) {
(iinfo->free_data_context) (callback_data_context,
iinfo);
callback_data_context = NULL;
}
if (!results && !MODE_IS_SET(reqinfo->mode)) {
/*
* no results found.
*/
/*
* XXX: check for at least one entry at the very top
*/
#ifdef NOT_SERIALIZED
break;
#else
if (callback_loop_context && iinfo->free_loop_context_at_end) {
(iinfo->free_loop_context_at_end) (callback_loop_context,
iinfo);
callback_loop_context = NULL;
}
if (free_this_index_search != NULL) {
snmp_free_varbind(free_this_index_search);
}
return SNMP_ERR_NOERROR;
#endif
}
skip_processing:
/*
* OK, here results should be a pointer to the data that we
* actually need to GET
*/
oldmode = reqinfo->mode;
if (reqinfo->mode == MODE_GETNEXT || reqinfo->mode == MODE_GETBULK) { /* XXX */
snmp_set_var_objid(requests->requestvb, results->name,
results->name_length);
reqinfo->mode = MODE_GET;
}
if (reqinfo->mode == MODE_GET || reqinfo->mode == MODE_GETNEXT || reqinfo->mode == MODE_GETBULK || /* XXX */
reqinfo->mode == MODE_SET_RESERVE1) {
/*
* first (or only) pass stuff
*/
/*
* let set requsets use previously constructed data
*/
snmp_free_varbind(results);
if (callback_data_keep)
netsnmp_request_add_list_data(requests,
netsnmp_create_data_list
(TABLE_ITERATOR_NAME,
callback_data_keep, NULL));
netsnmp_request_add_list_data(requests,
netsnmp_create_data_list
(TABLE_ITERATOR_LAST_CONTEXT,
callback_loop_context, NULL));
}
DEBUGMSGTL(("table_iterator", "doing mode: %s\n",
se_find_label_in_slist("agent_mode", oldmode)));
ret =
netsnmp_call_next_handler(handler, reginfo, reqinfo, requests);
if (oldmode == MODE_GETNEXT || oldmode == MODE_GETBULK) { /* XXX */
if (requests->requestvb->type == ASN_NULL ||
requests->requestvb->type == SNMP_NOSUCHINSTANCE) {
/*
* get next skipped this value for this column, we
* need to keep searching forward
*/
requests->requestvb->type = ASN_PRIV_RETRY;
}
reqinfo->mode = oldmode;
}
callback_data_keep =
netsnmp_request_get_list_data(requests, TABLE_ITERATOR_NAME);
callback_loop_context =
netsnmp_request_get_list_data(requests,
TABLE_ITERATOR_LAST_CONTEXT);
/*
* This has to be done to prevent a memory leak. Notice that on
* SET_RESERVE1 we're assigning something to
* 'free_this_index_search' at the beginning of this handler (right
* above the line that says 'below our minimum column?'),
* but we're not given a chance to free it below with the other
* SET modes, hence our doing it here.
*/
if (reqinfo->mode == MODE_SET_RESERVE1) {
if (free_this_index_search) {
snmp_free_varbind(free_this_index_search);
free_this_index_search = NULL;
}
}
if (reqinfo->mode == MODE_GET || reqinfo->mode == MODE_GETNEXT ||
reqinfo->mode == MODE_GETBULK || /* XXX */
reqinfo->mode == MODE_SET_FREE ||
reqinfo->mode == MODE_SET_UNDO ||
reqinfo->mode == MODE_SET_COMMIT) {
if (callback_data_keep && iinfo->free_data_context) {
(iinfo->free_data_context) (callback_data_keep, iinfo);
callback_data_keep = NULL;
}
if (free_this_index_search) {
snmp_free_varbind(free_this_index_search);
free_this_index_search = NULL;
}
#ifndef NOT_SERIALIZED
if (callback_loop_context && iinfo->free_loop_context_at_end) {
(iinfo->free_loop_context_at_end) (callback_loop_context,
iinfo);
callback_loop_context = NULL;
}
#endif
}
#ifdef NOT_SERIALIZED
return ret;
#else
requests = requests->next;
#endif
}
#ifdef NOT_SERIALIZED
if (reqinfo->mode == MODE_GET || reqinfo->mode == MODE_GETNEXT || reqinfo->mode == MODE_GETBULK || /* XXX */
reqinfo->mode == MODE_SET_FREE ||
reqinfo->mode == MODE_SET_UNDO ||
reqinfo->mode == MODE_SET_COMMIT) {
if (callback_loop_context && iinfo->free_loop_context_at_end) {
(iinfo->free_loop_context_at_end) (callback_loop_context,
iinfo);
callback_loop_context = NULL;
}
}
#endif
return SNMP_ERR_NOERROR;
}
/**
* The helper handler that takes care of passing a specific row of
* data down to the lower handler(s). It sets request->processed if
* the request should not be handled.
*/
int
netsnmp_table_data_helper_handler(netsnmp_mib_handler *handler,
netsnmp_handler_registration *reginfo,
netsnmp_agent_request_info *reqinfo,
netsnmp_request_info *requests)
{
netsnmp_table_data *table = (netsnmp_table_data *) handler->myvoid;
netsnmp_request_info *request;
int valid_request = 0;
netsnmp_table_row *row;
netsnmp_table_request_info *table_info;
netsnmp_table_registration_info *table_reg_info =
netsnmp_find_table_registration_info(reginfo);
int result, regresult;
int oldmode;
for (request = requests; request; request = request->next) {
if (request->processed)
continue;
table_info = netsnmp_extract_table_info(request);
if (!table_info)
continue; /* ack */
/*
* find the row in question
*/
switch (reqinfo->mode) {
case MODE_GETNEXT:
case MODE_GETBULK: /* XXXWWW */
if (request->requestvb->type != ASN_NULL)
continue;
/*
* loop through data till we find the next row
*/
result = snmp_oid_compare(request->requestvb->name,
request->requestvb->name_length,
reginfo->rootoid,
reginfo->rootoid_len);
regresult = snmp_oid_compare(request->requestvb->name,
SNMP_MIN(request->requestvb->
name_length,
reginfo->rootoid_len),
reginfo->rootoid,
reginfo->rootoid_len);
if (regresult == 0
&& request->requestvb->name_length < reginfo->rootoid_len)
regresult = -1;
if (result < 0 || 0 == result) {
/*
* before us entirely, return the first
*/
row = table->first_row;
table_info->colnum = table_reg_info->min_column;
} else if (regresult == 0 && request->requestvb->name_length ==
reginfo->rootoid_len + 1 &&
/* entry node must be 1, but any column is ok */
request->requestvb->name[reginfo->rootoid_len] == 1) {
/*
* exactly to the entry
*/
row = table->first_row;
table_info->colnum = table_reg_info->min_column;
} else if (regresult == 0 && request->requestvb->name_length ==
reginfo->rootoid_len + 2 &&
/* entry node must be 1, but any column is ok */
request->requestvb->name[reginfo->rootoid_len] == 1) {
/*
* exactly to the column
*/
row = table->first_row;
} else {
/*
* loop through all rows looking for the first one
* that is equal to the request or greater than it
*/
for (row = table->first_row; row; row = row->next) {
/*
* compare the index of the request to the row
*/
result =
snmp_oid_compare(row->index_oid,
row->index_oid_len,
request->requestvb->name + 2 +
reginfo->rootoid_len,
request->requestvb->name_length -
2 - reginfo->rootoid_len);
if (result == 0) {
/*
* equal match, return the next row
*/
if (row) {
row = row->next;
}
break;
} else if (result > 0) {
/*
* the current row is greater than the
* request, use it
*/
break;
}
}
}
if (!row) {
table_info->colnum++;
if (table_info->colnum <= table_reg_info->max_column) {
row = table->first_row;
}
}
if (row) {
valid_request = 1;
netsnmp_request_add_list_data(request,
netsnmp_create_data_list
(TABLE_DATA_NAME, row,
NULL));
/*
* Set the name appropriately, so we can pass this
* request on as a simple GET request
*/
netsnmp_table_data_build_result(reginfo, reqinfo, request,
row,
table_info->colnum,
ASN_NULL, NULL, 0);
} else { /* no decent result found. Give up. It's beyond us. */
request->processed = 1;
}
break;
case MODE_GET:
if (request->requestvb->type != ASN_NULL)
continue;
/*
* find the row in question
*/
if (request->requestvb->name_length < (reginfo->rootoid_len + 3)) { /* table.entry.column... */
/*
* request too short
*/
netsnmp_set_request_error(reqinfo, request,
SNMP_NOSUCHINSTANCE);
break;
} else if (NULL ==
(row =
netsnmp_table_data_get_from_oid(table,
request->
requestvb->name +
reginfo->
rootoid_len + 2,
request->
requestvb->
name_length -
reginfo->
rootoid_len -
2))) {
/*
* no such row
*/
netsnmp_set_request_error(reqinfo, request,
SNMP_NOSUCHINSTANCE);
break;
} else {
valid_request = 1;
netsnmp_request_add_list_data(request,
netsnmp_create_data_list
(TABLE_DATA_NAME, row,
NULL));
}
break;
case MODE_SET_RESERVE1:
valid_request = 1;
if (NULL !=
(row =
netsnmp_table_data_get_from_oid(table,
request->requestvb->name +
reginfo->rootoid_len + 2,
request->requestvb->
name_length -
reginfo->rootoid_len -
2))) {
netsnmp_request_add_list_data(request,
netsnmp_create_data_list
(TABLE_DATA_NAME, row,
NULL));
}
break;
case MODE_SET_RESERVE2:
case MODE_SET_ACTION:
case MODE_SET_COMMIT:
case MODE_SET_FREE:
case MODE_SET_UNDO:
valid_request = 1;
}
}
if (valid_request) {
/*
* If this is a GetNext or GetBulk request, then we've identified
* the row that ought to include the appropriate next instance.
* Convert the request into a Get request, so that the lower-level
* handlers don't need to worry about skipping on....
*/
oldmode = reqinfo->mode;
if (reqinfo->mode == MODE_GETNEXT || reqinfo->mode == MODE_GETBULK) {
reqinfo->mode = MODE_GET;
}
result = netsnmp_call_next_handler(handler, reginfo, reqinfo,
requests);
if (oldmode == MODE_GETNEXT || oldmode == MODE_GETBULK) { /* XXX */
for (request = requests; request; request = request->next) {
/*
* ... but if the lower-level handlers aren't dealing with
* skipping on to the next instance, then we must handle
* this situation here.
* Mark 'holes' in the table as needing to be retried.
*
* This approach is less efficient than handling such
* holes directly in the table_dataset handler, but allows
* user-provided handlers to override the dataset handler
* if this proves necessary.
*/
if (request->requestvb->type == ASN_NULL ||
request->requestvb->type == SNMP_NOSUCHINSTANCE) {
request->requestvb->type = ASN_PRIV_RETRY;
}
/* XXX - Move on to the next object */
if (request->requestvb->type == SNMP_NOSUCHOBJECT) {
request->requestvb->type = ASN_PRIV_RETRY;
}
}
reqinfo->mode = oldmode;
}
return result;
}
else
return SNMP_ERR_NOERROR;
}
void
return_delayed_response(unsigned int clientreg, void *clientarg)
{
/*
* extract the cache from the passed argument
*/
netsnmp_delegated_cache *cache = (netsnmp_delegated_cache *) clientarg;
netsnmp_request_info *requests;
netsnmp_agent_request_info *reqinfo;
u_long *delay_time_cache = NULL;
/*
* here we double check that the cache we created earlier is still
* * valid. If not, the request timed out for some reason and we
* * don't need to keep processing things. Should never happen, but
* * this double checks.
*/
cache = netsnmp_handler_check_cache(cache);
if (!cache) {
snmp_log(LOG_ERR, "illegal call to return delayed response\n");
return;
}
/*
* re-establish the previous pointers we are used to having
*/
reqinfo = cache->reqinfo;
requests = cache->requests;
DEBUGMSGTL(("delayed_instance",
"continuing delayed request, mode = %d\n",
cache->reqinfo->mode));
/*
* mention that it's no longer delegated, and we've now answered
* the query (which we'll do down below).
*/
requests->delegated = 0;
switch (cache->reqinfo->mode) {
/*
* registering as an instance means we don't need to deal with
* getnext processing, so we don't handle it here at all.
*
* However, since the instance handler already reset the mode
* back to GETNEXT from the faked GET mode, we need to do the
* same thing in both cases. This should be fixed in future
* versions of net-snmp hopefully.
*/
case MODE_GET:
case MODE_GETNEXT:
/*
* return the currend delay time
*/
snmp_set_var_typed_value(cache->requests->requestvb,
ASN_INTEGER,
(u_char *) & delay_time,
sizeof(delay_time));
break;
#ifndef NETSNMP_NO_WRITE_SUPPORT
case MODE_SET_RESERVE1:
/*
* check type
*/
if (requests->requestvb->type != ASN_INTEGER) {
/*
* not an integer. Bad dog, no bone.
*/
netsnmp_set_request_error(reqinfo, requests,
SNMP_ERR_WRONGTYPE);
/*
* we don't need the cache any longer
*/
netsnmp_free_delegated_cache(cache);
return;
}
break;
case MODE_SET_RESERVE2:
/*
* store old value for UNDO support in the future.
*/
delay_time_cache = netsnmp_memdup(&delay_time, sizeof(delay_time));
/*
* malloc failed
*/
if (delay_time_cache == NULL) {
netsnmp_set_request_error(reqinfo, requests,
SNMP_ERR_RESOURCEUNAVAILABLE);
netsnmp_free_delegated_cache(cache);
return;
}
/*
* Add our temporary information to the request itself.
* This is then retrivable later. The free function
* passed auto-frees it when the request is later
* deleted.
*/
netsnmp_request_add_list_data(requests,
netsnmp_create_data_list
(DELAYED_INSTANCE_SET_NAME,
delay_time_cache, free));
break;
case MODE_SET_ACTION:
/*
* update current value
*/
delay_time = *(requests->requestvb->val.integer);
DEBUGMSGTL(("testhandler", "updated delay_time -> %ld\n",
delay_time));
break;
case MODE_SET_UNDO:
/*
* ack, something somewhere failed. We reset back to the
* previously old value by extracting the previosuly
* stored information back out of the request
*/
delay_time =
*((u_long *) netsnmp_request_get_list_data(requests,
DELAYED_INSTANCE_SET_NAME));
break;
case MODE_SET_COMMIT:
case MODE_SET_FREE:
/*
* the only thing to do here is free the old memdup'ed
* value, but it's auto-freed by the datalist recovery, so
* we don't have anything to actually do here
*/
break;
#endif /* NETSNMP_NO_WRITE_SUPPORT */
}
/*
* free the information cache
*/
netsnmp_free_delegated_cache(cache);
}
int
handle_ipForwarding(netsnmp_mib_handler *handler,
netsnmp_handler_registration *reginfo,
netsnmp_agent_request_info *reqinfo,
netsnmp_request_info *requests)
{
int rc;
u_long value;
/* We are never called for a GETNEXT if it's registered as a
"instance", as it's "magically" handled for us. */
/* a instance handler also only hands us one request at a time, so
we don't need to loop over a list of requests; we'll only get one. */
switch(reqinfo->mode) {
case MODE_GET:
rc = netsnmp_arch_ip_scalars_ipForwarding_get(&value);
if (rc != 0) {
netsnmp_set_request_error(reqinfo, requests,
SNMP_NOSUCHINSTANCE);
}
else {
value = value ? 1 : 2;
snmp_set_var_typed_value(requests->requestvb, ASN_INTEGER,
(u_char *)&value, sizeof(value));
}
break;
/*
* SET REQUEST
*
* multiple states in the transaction. See:
* http://www.net-snmp.org/tutorial-5/toolkit/mib_module/set-actions.jpg
*/
case MODE_SET_RESERVE1:
break;
case MODE_SET_RESERVE2:
/*
* store old info for undo later
*/
rc = netsnmp_arch_ip_scalars_ipForwarding_get(&value);
if (rc < 0) {
netsnmp_set_request_error(reqinfo, requests,
SNMP_ERR_NOCREATION);
} else {
u_long *value_save = NULL;
u_char * _value_save = (u_char *)value_save;
memdup(& _value_save, (u_char *) &value,
sizeof(value));
if ( NULL == value_save )
netsnmp_set_request_error(reqinfo, requests, SNMP_ERR_RESOURCEUNAVAILABLE);
else
netsnmp_request_add_list_data(requests,
netsnmp_create_data_list
("ipfw", value_save,
free));
}
break;
case MODE_SET_FREE:
/* XXX: free resources allocated in RESERVE1 and/or
RESERVE2. Something failed somewhere, and the states
below won't be called. */
break;
case MODE_SET_ACTION:
/* XXX: perform the value change here */
value = *(requests->requestvb->val.integer);
rc = netsnmp_arch_ip_scalars_ipForwarding_set(value);
if ( 0 != rc ) {
netsnmp_set_request_error(reqinfo, requests, rc);
}
break;
case MODE_SET_COMMIT:
break;
case MODE_SET_UNDO:
value =
*((u_long *) netsnmp_request_get_list_data(requests,
"ipfw"));
rc = netsnmp_arch_ip_scalars_ipForwarding_set(value);
if ( 0 != rc ) {
netsnmp_set_request_error(reqinfo, requests, SNMP_ERR_UNDOFAILED);
}
break;
default:
/* we should never get here, so this is a really bad error */
snmp_log(LOG_ERR, "unknown mode (%d) in handle_ipForwarding\n", reqinfo->mode );
return SNMP_ERR_GENERR;
}
return SNMP_ERR_NOERROR;
}
/** implements the old_api handler */
int
netsnmp_old_api_helper(netsnmp_mib_handler *handler,
netsnmp_handler_registration *reginfo,
netsnmp_agent_request_info *reqinfo,
netsnmp_request_info *requests)
{
#if MIB_CLIENTS_ARE_EVIL
oid save[MAX_OID_LEN];
size_t savelen = 0;
#endif
struct variable compat_var, *cvp = &compat_var;
int exact = 1;
int status;
struct variable *vp;
netsnmp_old_api_cache *cacheptr;
netsnmp_agent_session *oldasp = NULL;
u_char *access = NULL;
WriteMethod *write_method = NULL;
size_t len;
size_t tmp_len;
oid tmp_name[MAX_OID_LEN];
vp = (struct variable *) handler->myvoid;
/*
* create old variable structure with right information
*/
memcpy(cvp->name, reginfo->rootoid,
reginfo->rootoid_len * sizeof(oid));
cvp->namelen = reginfo->rootoid_len;
cvp->type = vp->type;
cvp->magic = vp->magic;
cvp->acl = vp->acl;
cvp->findVar = vp->findVar;
switch (reqinfo->mode) {
case MODE_GETNEXT:
case MODE_GETBULK:
exact = 0;
}
for (; requests; requests = requests->next) {
#if MIB_CLIENTS_ARE_EVIL
savelen = requests->requestvb->name_length;
memcpy(save, requests->requestvb->name, savelen * sizeof(oid));
#endif
switch (reqinfo->mode) {
case MODE_GET:
case MODE_GETNEXT:
#ifndef NETSNMP_NO_WRITE_SUPPORT
case MODE_SET_RESERVE1:
#endif /* !NETSNMP_NO_WRITE_SUPPORT */
/*
* Actually call the old mib-module function
*/
if (vp && vp->findVar) {
memcpy(tmp_name, requests->requestvb->name,
requests->requestvb->name_length*sizeof(oid));
tmp_len = requests->requestvb->name_length;
access = (*(vp->findVar)) (cvp, tmp_name, &tmp_len,
exact, &len, &write_method);
snmp_set_var_objid( requests->requestvb, tmp_name, tmp_len );
}
else
access = NULL;
#ifdef WWW_FIX
if (IS_DELEGATED(cvp->type)) {
add_method = (AddVarMethod *) statP;
requests->delayed = 1;
have_delegated = 1;
continue; /* WWW: This may not get to the right place */
}
#endif
/*
* WWW: end range checking
*/
if (access) {
/*
* result returned
*/
#ifndef NETSNMP_NO_WRITE_SUPPORT
if (reqinfo->mode != MODE_SET_RESERVE1)
#endif /* !NETSNMP_NO_WRITE_SUPPORT */
snmp_set_var_typed_value(requests->requestvb,
cvp->type, access, len);
} else {
/*
* no result returned
*/
#if MIB_CLIENTS_ARE_EVIL
if (access == NULL) {
if (netsnmp_oid_equals(requests->requestvb->name,
requests->requestvb->name_length,
save, savelen) != 0) {
DEBUGMSGTL(("old_api", "evil_client: %s\n",
reginfo->handlerName));
memcpy(requests->requestvb->name, save,
savelen * sizeof(oid));
requests->requestvb->name_length = savelen;
}
}
#endif
}
/*
* AAA: fall through for everything that is a set (see BBB)
*/
#ifndef NETSNMP_NO_WRITE_SUPPORT
if (reqinfo->mode != MODE_SET_RESERVE1)
#endif /* !NETSNMP_NO_WRITE_SUPPORT */
break;
cacheptr = SNMP_MALLOC_TYPEDEF(netsnmp_old_api_cache);
if (!cacheptr)
return netsnmp_set_request_error(reqinfo, requests,
SNMP_ERR_RESOURCEUNAVAILABLE);
cacheptr->data = access;
cacheptr->write_method = write_method;
write_method = NULL;
netsnmp_request_add_list_data(requests,
netsnmp_create_data_list
(OLD_API_NAME, cacheptr,
&free_wrapper));
/*
* BBB: fall through for everything that is a set (see AAA)
*/
default:
/*
* WWW: explicitly list the SET conditions
*/
/*
* (the rest of the) SET contions
*/
cacheptr =
(netsnmp_old_api_cache *)
netsnmp_request_get_list_data(requests, OLD_API_NAME);
if (cacheptr == NULL || cacheptr->write_method == NULL) {
/*
* WWW: try to set ourselves if possible?
*/
return netsnmp_set_request_error(reqinfo, requests,
SNMP_ERR_NOTWRITABLE);
}
oldasp = netsnmp_get_current_agent_session();
set_current_agent_session(reqinfo->asp);
status =
(*(cacheptr->write_method)) (reqinfo->mode,
requests->requestvb->val.
string,
requests->requestvb->type,
requests->requestvb->val_len,
cacheptr->data,
requests->requestvb->name,
requests->requestvb->
name_length);
set_current_agent_session(oldasp);
if (status != SNMP_ERR_NOERROR) {
netsnmp_set_request_error(reqinfo, requests, status);
}
/*
* clean up is done by the automatic freeing of the
* cache stored in the request.
*/
break;
}
}
return SNMP_ERR_NOERROR;
}
int
netsnmp_instance_num_file_handler(netsnmp_mib_handler *handler,
netsnmp_handler_registration *reginfo,
netsnmp_agent_request_info *reqinfo,
netsnmp_request_info *requests)
{
netsnmp_num_file_instance *nfi;
u_long it, *it_save;
int rc;
netsnmp_assert(NULL != handler);
nfi = (netsnmp_num_file_instance *)handler->myvoid;
netsnmp_assert(NULL != nfi);
netsnmp_assert(NULL != nfi->file_name);
DEBUGMSGTL(("netsnmp_instance_int_handler", "Got request: %d\n",
reqinfo->mode));
switch (reqinfo->mode) {
/*
* data requests
*/
case MODE_GET:
/*
* Use a long here, otherwise on 64 bit use of an int would fail
*/
netsnmp_assert(NULL == nfi->filep);
nfi->filep = fopen(nfi->file_name, "r");
if (NULL == nfi->filep) {
netsnmp_set_request_error(reqinfo, requests,
SNMP_NOSUCHINSTANCE);
return SNMP_ERR_NOERROR;
}
rc = fscanf(nfi->filep, (nfi->type == ASN_INTEGER) ? "%ld" : "%lu",
&it);
fclose(nfi->filep);
nfi->filep = NULL;
if (rc != 1) {
netsnmp_set_request_error(reqinfo, requests,
SNMP_NOSUCHINSTANCE);
return SNMP_ERR_NOERROR;
}
snmp_set_var_typed_value(requests->requestvb, nfi->type,
(u_char *) &it, sizeof(it));
break;
/*
* SET requests. Should only get here if registered RWRITE
*/
case MODE_SET_RESERVE1:
netsnmp_assert(NULL == nfi->filep);
if (requests->requestvb->type != nfi->type)
netsnmp_set_request_error(reqinfo, requests,
SNMP_ERR_WRONGTYPE);
break;
case MODE_SET_RESERVE2:
netsnmp_assert(NULL == nfi->filep);
nfi->filep = fopen(nfi->file_name, "w+");
if (NULL == nfi->filep) {
netsnmp_set_request_error(reqinfo, requests,
SNMP_ERR_NOTWRITABLE);
return SNMP_ERR_NOERROR;
}
/*
* store old info for undo later
*/
if (fscanf(nfi->filep, (nfi->type == ASN_INTEGER) ? "%ld" : "%lu",
&it) != 1) {
netsnmp_set_request_error(reqinfo, requests,
SNMP_ERR_RESOURCEUNAVAILABLE);
return SNMP_ERR_NOERROR;
}
memdup((u_char **) & it_save, (u_char *)&it, sizeof(u_long));
if (it_save == NULL) {
netsnmp_set_request_error(reqinfo, requests,
SNMP_ERR_RESOURCEUNAVAILABLE);
return SNMP_ERR_NOERROR;
}
netsnmp_request_add_list_data(requests,
netsnmp_create_data_list
(INSTANCE_HANDLER_NAME, it_save,
free));
break;
case MODE_SET_ACTION:
/*
* update current
*/
DEBUGMSGTL(("helper:instance", "updated %s -> %ld\n", nfi->file_name,
*(requests->requestvb->val.integer)));
it = *(requests->requestvb->val.integer);
rewind(nfi->filep); /* rewind to make sure we are at the beginning */
rc = fprintf(nfi->filep, (nfi->type == ASN_INTEGER) ? "%ld" : "%lu",
it);
if (rc < 0) {
netsnmp_set_request_error(reqinfo, requests,
SNMP_ERR_GENERR);
return SNMP_ERR_NOERROR;
}
break;
case MODE_SET_UNDO:
it =
*((u_int *) netsnmp_request_get_list_data(requests,
INSTANCE_HANDLER_NAME));
rc = fprintf(nfi->filep, (nfi->type == ASN_INTEGER) ? "%ld" : "%lu",
it);
if (rc < 0)
netsnmp_set_request_error(reqinfo, requests,
SNMP_ERR_UNDOFAILED);
/** fall through */
case MODE_SET_COMMIT:
case MODE_SET_FREE:
if (NULL != nfi->filep) {
fclose(nfi->filep);
nfi->filep = NULL;
}
break;
}
if (handler->next && handler->next->access_method)
return netsnmp_call_next_handler(handler, reginfo, reqinfo,
requests);
return SNMP_ERR_NOERROR;
}
int
my_test_instance_handler(netsnmp_mib_handler *handler,
netsnmp_handler_registration *reginfo,
netsnmp_agent_request_info *reqinfo,
netsnmp_request_info *requests)
{
static u_long accesses = 0;
u_long *accesses_cache = NULL;
DEBUGMSGTL(("testhandler", "Got instance request:\n"));
switch (reqinfo->mode) {
case MODE_GET:
snmp_set_var_typed_value(requests->requestvb, ASN_UNSIGNED,
(u_char *) & accesses, sizeof(accesses));
break;
#ifndef NETSNMP_NO_WRITE_SUPPORT
case MODE_SET_RESERVE1:
if (requests->requestvb->type != ASN_UNSIGNED)
netsnmp_set_request_error(reqinfo, requests,
SNMP_ERR_WRONGTYPE);
break;
case MODE_SET_RESERVE2:
/*
* store old info for undo later
*/
accesses_cache = netsnmp_memdup(&accesses, sizeof(accesses));
if (accesses_cache == NULL) {
netsnmp_set_request_error(reqinfo, requests,
SNMP_ERR_RESOURCEUNAVAILABLE);
return SNMP_ERR_NOERROR;
}
netsnmp_request_add_list_data(requests,
netsnmp_create_data_list
(TESTHANDLER_SET_NAME,
accesses_cache, free));
break;
case MODE_SET_ACTION:
/*
* update current
*/
accesses = *(requests->requestvb->val.integer);
DEBUGMSGTL(("testhandler", "updated accesses -> %d\n", accesses));
break;
case MODE_SET_UNDO:
accesses =
*((u_long *) netsnmp_request_get_list_data(requests,
TESTHANDLER_SET_NAME));
break;
case MODE_SET_COMMIT:
case MODE_SET_FREE:
/*
* nothing to do
*/
break;
#endif /* NETSNMP_NO_WRITE_SUPPORT */
}
return SNMP_ERR_NOERROR;
}
/*
* The helper handler that takes care of passing a specific row of
* data down to the lower handler(s). It sets request->processed if
* the request should not be handled.
*/
int
netsnmp_table_data_helper_handler(netsnmp_mib_handler *handler,
netsnmp_handler_registration *reginfo,
netsnmp_agent_request_info *reqinfo,
netsnmp_request_info *requests)
{
netsnmp_table_data *table = (netsnmp_table_data *) handler->myvoid;
netsnmp_request_info *request;
int valid_request = 0;
netsnmp_table_row *row;
netsnmp_table_request_info *table_info;
netsnmp_table_registration_info *table_reg_info =
netsnmp_find_table_registration_info(reginfo);
int result, regresult;
int oldmode;
for (request = requests; request; request = request->next) {
if (request->processed)
continue;
table_info = netsnmp_extract_table_info(request);
if (!table_info)
continue; /* ack */
switch (reqinfo->mode) {
case MODE_GET:
case MODE_GETNEXT:
case MODE_SET_RESERVE1:
netsnmp_request_add_list_data(request,
netsnmp_create_data_list(
TABLE_DATA_TABLE, table, NULL));
}
/*
* find the row in question
*/
switch (reqinfo->mode) {
case MODE_GETNEXT:
case MODE_GETBULK: /* XXXWWW */
if (request->requestvb->type != ASN_NULL)
continue;
/*
* loop through data till we find the next row
*/
result = snmp_oid_compare(request->requestvb->name,
request->requestvb->name_length,
reginfo->rootoid,
reginfo->rootoid_len);
regresult = snmp_oid_compare(request->requestvb->name,
SNMP_MIN(request->requestvb->
name_length,
reginfo->rootoid_len),
reginfo->rootoid,
reginfo->rootoid_len);
if (regresult == 0
&& request->requestvb->name_length < reginfo->rootoid_len)
regresult = -1;
if (result < 0 || 0 == result) {
/*
* before us entirely, return the first
*/
row = table->first_row;
table_info->colnum = table_reg_info->min_column;
} else if (regresult == 0 && request->requestvb->name_length ==
reginfo->rootoid_len + 1 &&
/* entry node must be 1, but any column is ok */
request->requestvb->name[reginfo->rootoid_len] == 1) {
/*
* exactly to the entry
*/
row = table->first_row;
table_info->colnum = table_reg_info->min_column;
} else if (regresult == 0 && request->requestvb->name_length ==
reginfo->rootoid_len + 2 &&
/* entry node must be 1, but any column is ok */
request->requestvb->name[reginfo->rootoid_len] == 1) {
/*
* exactly to the column
*/
row = table->first_row;
} else {
/*
* loop through all rows looking for the first one
* that is equal to the request or greater than it
*/
for (row = table->first_row; row; row = row->next) {
/*
* compare the index of the request to the row
*/
result =
snmp_oid_compare(row->index_oid,
row->index_oid_len,
request->requestvb->name + 2 +
reginfo->rootoid_len,
request->requestvb->name_length -
2 - reginfo->rootoid_len);
if (result == 0) {
/*
* equal match, return the next row
*/
if (row) {
row = row->next;
}
break;
} else if (result > 0) {
/*
* the current row is greater than the
* request, use it
*/
break;
}
}
}
if (!row) {
table_info->colnum++;
if (table_info->colnum <= table_reg_info->max_column) {
row = table->first_row;
}
}
if (row) {
valid_request = 1;
netsnmp_request_add_list_data(request,
netsnmp_create_data_list
(TABLE_DATA_ROW, row,
NULL));
/*
* Set the name appropriately, so we can pass this
* request on as a simple GET request
*/
netsnmp_table_data_build_result(reginfo, reqinfo, request,
row,
table_info->colnum,
ASN_NULL, NULL, 0);
} else { /* no decent result found. Give up. It's beyond us. */
request->processed = 1;
}
break;
case MODE_GET:
if (request->requestvb->type != ASN_NULL)
continue;
/*
* find the row in question
*/
if (request->requestvb->name_length < (reginfo->rootoid_len + 3)) { /* table.entry.column... */
/*
* request too short
*/
netsnmp_set_request_error(reqinfo, request,
SNMP_NOSUCHINSTANCE);
break;
} else if (NULL ==
(row =
netsnmp_table_data_get_from_oid(table,
request->
requestvb->name +
reginfo->
rootoid_len + 2,
request->
requestvb->
name_length -
reginfo->
rootoid_len -
2))) {
/*
* no such row
*/
netsnmp_set_request_error(reqinfo, request,
SNMP_NOSUCHINSTANCE);
break;
} else {
valid_request = 1;
netsnmp_request_add_list_data(request,
netsnmp_create_data_list
(TABLE_DATA_ROW, row,
NULL));
}
break;
case MODE_SET_RESERVE1:
valid_request = 1;
if (NULL !=
(row =
netsnmp_table_data_get_from_oid(table,
request->requestvb->name +
reginfo->rootoid_len + 2,
request->requestvb->
name_length -
reginfo->rootoid_len -
2))) {
netsnmp_request_add_list_data(request,
netsnmp_create_data_list
(TABLE_DATA_ROW, row,
NULL));
}
break;
case MODE_SET_RESERVE2:
case MODE_SET_ACTION:
case MODE_SET_COMMIT:
case MODE_SET_FREE:
case MODE_SET_UNDO:
valid_request = 1;
}
}
if (valid_request &&
(reqinfo->mode == MODE_GETNEXT || reqinfo->mode == MODE_GETBULK)) {
/*
* If this is a GetNext or GetBulk request, then we've identified
* the row that ought to include the appropriate next instance.
* Convert the request into a Get request, so that the lower-level
* handlers don't need to worry about skipping on, and call these
* handlers ourselves (so we can undo this again afterwards).
*/
oldmode = reqinfo->mode;
reqinfo->mode = MODE_GET;
result = netsnmp_call_next_handler(handler, reginfo, reqinfo,
requests);
reqinfo->mode = oldmode;
handler->flags |= MIB_HANDLER_AUTO_NEXT_OVERRIDE_ONCE;
return result;
}
else
/* next handler called automatically - 'AUTO_NEXT' */
return SNMP_ERR_NOERROR;
}
/**
* \deprecated This function is unused and scheduled for removal in Net-SNMP 5.6
*/
int
netsnmp_instance_uint_handler(netsnmp_mib_handler *handler,
netsnmp_handler_registration *reginfo,
netsnmp_agent_request_info *reqinfo,
netsnmp_request_info *requests)
{
unsigned int *it = (unsigned int *) handler->myvoid;
unsigned int *it_save;
unsigned long tmp_it;
DEBUGMSGTL(("netsnmp_instance_uint_handler", "Got request: %d\n",
reqinfo->mode));
switch (reqinfo->mode) {
/*
* data requests
*/
case MODE_GET:
/*
* Use a long here, otherwise on 64 bit use of an int would fail
*/
tmp_it = *it;
snmp_set_var_typed_value(requests->requestvb, ASN_UNSIGNED,
(u_char *) &tmp_it, sizeof(unsigned long));
break;
/*
* SET requests. Should only get here if registered RWRITE
*/
case MODE_SET_RESERVE1:
if (requests->requestvb->type != ASN_UNSIGNED)
netsnmp_set_request_error(reqinfo, requests,
SNMP_ERR_WRONGTYPE);
break;
case MODE_SET_RESERVE2:
/*
* store old info for undo later
*/
memdup((u_char **) & it_save, (u_char *) it, sizeof(u_int));
if (it_save == NULL) {
netsnmp_set_request_error(reqinfo, requests,
SNMP_ERR_RESOURCEUNAVAILABLE);
return SNMP_ERR_NOERROR;
}
netsnmp_request_add_list_data(requests,
netsnmp_create_data_list
(INSTANCE_HANDLER_NAME, it_save,
free));
break;
case MODE_SET_ACTION:
/*
* update current
*/
DEBUGMSGTL(("testhandler", "updated uint %d -> %ld\n", *it,
*(requests->requestvb->val.integer)));
*it = (unsigned int) *(requests->requestvb->val.integer);
break;
case MODE_SET_UNDO:
*it =
*((u_int *) netsnmp_request_get_list_data(requests,
INSTANCE_HANDLER_NAME));
break;
case MODE_SET_COMMIT:
case MODE_SET_FREE:
/*
* nothing to do
*/
break;
}
if (handler->next && handler->next->access_method)
return netsnmp_call_next_handler(handler, reginfo, reqinfo,
requests);
return SNMP_ERR_NOERROR;
}
int
netsnmp_watcher_helper_handler(netsnmp_mib_handler *handler,
netsnmp_handler_registration *reginfo,
netsnmp_agent_request_info *reqinfo,
netsnmp_request_info *requests)
{
netsnmp_watcher_info *winfo = (netsnmp_watcher_info *) handler->myvoid;
netsnmp_watcher_cache *old_data;
DEBUGMSGTL(("helper:watcher", "Got request: %d\n", reqinfo->mode));
DEBUGMSGTL(( "helper:watcher", " oid:"));
DEBUGMSGOID(("helper:watcher", requests->requestvb->name,
requests->requestvb->name_length));
DEBUGMSG(( "helper:watcher", "\n"));
switch (reqinfo->mode) {
/*
* data requests
*/
case MODE_GET:
snmp_set_var_typed_value(requests->requestvb,
winfo->type,
winfo->data,
get_data_size(winfo));
break;
/*
* SET requests. Should only get here if registered RWRITE
*/
case MODE_SET_RESERVE1:
if (requests->requestvb->type != winfo->type) {
netsnmp_set_request_error(reqinfo, requests, SNMP_ERR_WRONGTYPE);
handler->flags |= MIB_HANDLER_AUTO_NEXT_OVERRIDE_ONCE;
} else if (((winfo->flags & WATCHER_MAX_SIZE) &&
requests->requestvb->val_len > winfo->max_size) ||
((winfo->flags & WATCHER_FIXED_SIZE) &&
requests->requestvb->val_len != get_data_size(winfo))) {
netsnmp_set_request_error(reqinfo, requests, SNMP_ERR_WRONGLENGTH);
handler->flags |= MIB_HANDLER_AUTO_NEXT_OVERRIDE_ONCE;
} else if ((winfo->flags & WATCHER_SIZE_STRLEN) &&
(memchr(requests->requestvb->val.string, '\0',
requests->requestvb->val_len) != NULL)) {
netsnmp_set_request_error(reqinfo, requests, SNMP_ERR_WRONGVALUE);
handler->flags |= MIB_HANDLER_AUTO_NEXT_OVERRIDE_ONCE;
}
break;
case MODE_SET_RESERVE2:
/*
* store old info for undo later
*/
old_data =
netsnmp_watcher_cache_create(winfo->data, get_data_size(winfo));
if (old_data == NULL) {
netsnmp_set_request_error(reqinfo, requests,
SNMP_ERR_RESOURCEUNAVAILABLE);
handler->flags |= MIB_HANDLER_AUTO_NEXT_OVERRIDE_ONCE;
} else
netsnmp_request_add_list_data(requests,
netsnmp_create_data_list
("watcher", old_data, &free_wrapper));
break;
case MODE_SET_FREE:
/*
* nothing to do
*/
break;
case MODE_SET_ACTION:
/*
* update current
*/
set_data(winfo, (void *)requests->requestvb->val.string,
requests->requestvb->val_len);
break;
case MODE_SET_UNDO:
old_data = (netsnmp_watcher_cache*)netsnmp_request_get_list_data(requests, "watcher");
set_data(winfo, old_data->data, old_data->size);
break;
case MODE_SET_COMMIT:
break;
}
/* next handler called automatically - 'AUTO_NEXT' */
return SNMP_ERR_NOERROR;
}
/* implements the table_iterator helper */
int
netsnmp_table_iterator_helper_handler(netsnmp_mib_handler *handler,
netsnmp_handler_registration *reginfo,
netsnmp_agent_request_info *reqinfo,
netsnmp_request_info *requests)
{
netsnmp_table_registration_info *tbl_info;
netsnmp_table_request_info *table_info = NULL;
oid coloid[MAX_OID_LEN];
size_t coloid_len;
int ret;
static oid myname[MAX_OID_LEN];
size_t myname_len;
int oldmode = 0;
netsnmp_iterator_info *iinfo;
int notdone;
netsnmp_request_info *request, *reqtmp = NULL;
netsnmp_variable_list *index_search = NULL;
netsnmp_variable_list *free_this_index_search = NULL;
void *callback_loop_context = NULL, *last_loop_context;
void *callback_data_context = NULL;
ti_cache_info *ti_info = NULL;
int request_count = 0;
netsnmp_oid_stash_node **cinfo = NULL;
netsnmp_variable_list *old_indexes = NULL, *vb;
netsnmp_table_registration_info *table_reg_info = NULL;
int i;
netsnmp_data_list *ldata = NULL;
iinfo = (netsnmp_iterator_info *) handler->myvoid;
if (!iinfo || !reginfo || !reqinfo)
return SNMPERR_GENERR;
tbl_info = iinfo->table_reginfo;
/*
* copy in the table registration oid for later use
*/
coloid_len = reginfo->rootoid_len + 2;
memcpy(coloid, reginfo->rootoid, reginfo->rootoid_len * sizeof(oid));
coloid[reginfo->rootoid_len] = 1; /* table.entry node */
/*
* illegally got here if these functions aren't defined
*/
if (iinfo->get_first_data_point == NULL ||
iinfo->get_next_data_point == NULL) {
snmp_log(LOG_ERR,
"table_iterator helper called without data accessor functions\n");
return SNMP_ERR_GENERR;
}
/* preliminary analysis */
switch (reqinfo->mode) {
case MODE_GET_STASH:
cinfo = netsnmp_extract_stash_cache(reqinfo);
table_reg_info = netsnmp_find_table_registration_info(reginfo);
/* XXX: move this malloc to stash_cache handler? */
reqtmp = SNMP_MALLOC_TYPEDEF(netsnmp_request_info);
reqtmp->subtree = requests->subtree;
table_info = netsnmp_extract_table_info(requests);
netsnmp_request_add_list_data(reqtmp,
netsnmp_create_data_list
(TABLE_HANDLER_NAME,
(void *) table_info, NULL));
/* remember the indexes that were originally parsed. */
old_indexes = table_info->indexes;
break;
case MODE_GETNEXT:
for(request = requests ; request; request = request->next) {
if (request->processed)
continue;
table_info = netsnmp_extract_table_info(request);
if (table_info->colnum < tbl_info->min_column - 1) {
/* XXX: optimize better than this */
/* for now, just increase to colnum-1 */
/* we need to jump to the lowest result of the min_column
and take it, comparing to nothing from the request */
table_info->colnum = tbl_info->min_column - 1;
} else if (table_info->colnum > tbl_info->max_column) {
request->processed = TABLE_ITERATOR_NOTAGAIN;
}
ti_info =
netsnmp_request_get_list_data(request, TI_REQUEST_CACHE);
if (!ti_info) {
ti_info = SNMP_MALLOC_TYPEDEF(ti_cache_info);
netsnmp_request_add_list_data(request,
netsnmp_create_data_list
(TI_REQUEST_CACHE,
ti_info,
netsnmp_free_ti_cache));
}
/* XXX: if no valid requests, don't even loop below */
}
break;
}
/*
* collect all information for each needed row
*/
if (reqinfo->mode == MODE_GET ||
reqinfo->mode == MODE_GETNEXT ||
reqinfo->mode == MODE_GET_STASH ||
reqinfo->mode == MODE_SET_RESERVE1) {
/*
* Count the number of request in the list,
* so that we'll know when we're finished
*/
for(request = requests ; request; request = request->next)
if (!request->processed)
request_count++;
notdone = 1;
while(notdone) {
notdone = 0;
/* find first data point */
if (!index_search) {
if (free_this_index_search) {
/* previously done */
index_search = free_this_index_search;
} else {
for(request=requests ; request; request=request->next) {
table_info = netsnmp_extract_table_info(request);
if (table_info)
break;
}
if (!table_info) {
snmp_log(LOG_WARNING,
"no valid requests for iterator table %s\n",
reginfo->handlerName);
netsnmp_free_request_data_sets(reqtmp);
SNMP_FREE(reqtmp);
return SNMP_ERR_NOERROR;
}
index_search = snmp_clone_varbind(table_info->indexes);
free_this_index_search = index_search;
/* setup, malloc search data: */
if (!index_search) {
/*
* hmmm.... invalid table?
*/
snmp_log(LOG_WARNING,
"invalid index list or failed malloc for table %s\n",
reginfo->handlerName);
netsnmp_free_request_data_sets(reqtmp);
SNMP_FREE(reqtmp);
return SNMP_ERR_NOERROR;
}
}
}
/* if sorted, pass in a hint */
if (iinfo->flags & NETSNMP_ITERATOR_FLAG_SORTED) {
callback_loop_context = table_info;
}
index_search =
(iinfo->get_first_data_point) (&callback_loop_context,
&callback_data_context,
index_search, iinfo);
/* loop over each data point */
while(index_search) {
/* remember to free this later */
free_this_index_search = index_search;
/* compare against each request*/
for(request = requests ; request; request = request->next) {
if (request->processed)
continue;
/* XXX: store in an array for faster retrival */
table_info = netsnmp_extract_table_info(request);
coloid[reginfo->rootoid_len + 1] = table_info->colnum;
ti_info =
netsnmp_request_get_list_data(request, TI_REQUEST_CACHE);
switch(reqinfo->mode) {
case MODE_GET:
case MODE_SET_RESERVE1:
/* looking for exact matches */
build_oid_noalloc(myname, MAX_OID_LEN, &myname_len,
coloid, coloid_len, index_search);
if (snmp_oid_compare(myname, myname_len,
request->requestvb->name,
request->requestvb->name_length) == 0) {
/* keep this */
netsnmp_iterator_remember(request,
myname, myname_len,
callback_data_context,
callback_loop_context, iinfo);
request_count--; /* One less to look for */
} else {
if (iinfo->free_data_context && callback_data_context) {
(iinfo->free_data_context)(callback_data_context,
iinfo);
}
}
break;
case MODE_GET_STASH:
/* collect data for each column for every row */
build_oid_noalloc(myname, MAX_OID_LEN, &myname_len,
coloid, coloid_len, index_search);
reqinfo->mode = MODE_GET;
if (reqtmp)
ldata =
netsnmp_get_list_node(reqtmp->parent_data,
TABLE_ITERATOR_NAME);
if (!ldata) {
netsnmp_request_add_list_data(reqtmp,
netsnmp_create_data_list
(TABLE_ITERATOR_NAME,
callback_data_context,
NULL));
} else {
/* may have changed */
ldata->data = callback_data_context;
}
table_info->indexes = index_search;
for(i = table_reg_info->min_column;
i <= (int)table_reg_info->max_column; i++) {
myname[reginfo->rootoid_len + 1] = i;
table_info->colnum = i;
vb = reqtmp->requestvb =
SNMP_MALLOC_TYPEDEF(netsnmp_variable_list);
vb->type = ASN_NULL;
snmp_set_var_objid(vb, myname, myname_len);
netsnmp_call_next_handler(handler, reginfo,
reqinfo, reqtmp);
reqtmp->requestvb = NULL;
reqtmp->processed = 0;
if (vb->type != ASN_NULL) { /* XXX, not all */
netsnmp_oid_stash_add_data(cinfo, myname,
myname_len, vb);
} else {
snmp_free_var(vb);
}
}
reqinfo->mode = MODE_GET_STASH;
break;
case MODE_GETNEXT:
/* looking for "next" matches */
if (netsnmp_check_getnext_reply
(request, coloid, coloid_len, index_search,
&ti_info->results)) {
netsnmp_iterator_remember(request,
ti_info->results->name,
ti_info->results->name_length,
callback_data_context,
callback_loop_context, iinfo);
/*
* If we've been told that the rows are sorted,
* then the first valid one we find
* must be the right one.
*/
if (iinfo->flags & NETSNMP_ITERATOR_FLAG_SORTED)
request_count--;
} else {
if (iinfo->free_data_context && callback_data_context) {
(iinfo->free_data_context)(callback_data_context,
iinfo);
}
}
break;
case MODE_SET_RESERVE2:
case MODE_SET_FREE:
case MODE_SET_UNDO:
case MODE_SET_COMMIT:
/* needed processing already done in RESERVE1 */
break;
default:
snmp_log(LOG_ERR,
"table_iterator called with unsupported mode\n");
break; /* XXX return */
}
}
/* Is there any point in carrying on? */
if (!request_count)
break;
/* get the next search possibility */
last_loop_context = callback_loop_context;
index_search =
(iinfo->get_next_data_point) (&callback_loop_context,
&callback_data_context,
index_search, iinfo);
if (iinfo->free_loop_context && last_loop_context &&
callback_data_context != last_loop_context) {
(iinfo->free_loop_context) (last_loop_context, iinfo);
last_loop_context = NULL;
}
}
/* free loop context before going on */
if (callback_loop_context && iinfo->free_loop_context_at_end) {
(iinfo->free_loop_context_at_end) (callback_loop_context,
iinfo);
callback_loop_context = NULL;
}
/* decide which (GETNEXT) requests are not yet filled */
if (reqinfo->mode == MODE_GETNEXT) {
for(request = requests ; request; request = request->next) {
if (request->processed)
continue;
ti_info =
netsnmp_request_get_list_data(request,
TI_REQUEST_CACHE);
if (!ti_info->results) {
int nc;
table_info = netsnmp_extract_table_info(request);
nc = netsnmp_table_next_column(table_info);
if (0 == nc) {
coloid[reginfo->rootoid_len+1] = table_info->colnum+1;
snmp_set_var_objid(request->requestvb,
coloid, reginfo->rootoid_len+2);
request->processed = TABLE_ITERATOR_NOTAGAIN;
break;
} else {
table_info->colnum = nc;
notdone = 1;
}
}
}
}
}
}
if (reqinfo->mode == MODE_GET ||
reqinfo->mode == MODE_GETNEXT ||
reqinfo->mode == MODE_SET_RESERVE1) {
/* per request last minute processing */
for(request = requests ; request; request = request->next) {
if (request->processed)
continue;
ti_info =
netsnmp_request_get_list_data(request, TI_REQUEST_CACHE);
table_info =
netsnmp_extract_table_info(request);
if (!ti_info)
continue;
switch(reqinfo->mode) {
case MODE_GETNEXT:
if (ti_info->best_match_len)
snmp_set_var_objid(request->requestvb, ti_info->best_match,
ti_info->best_match_len);
else {
coloid[reginfo->rootoid_len+1] =
netsnmp_table_next_column(table_info);
if (0 == coloid[reginfo->rootoid_len+1]) {
/* out of range. */
coloid[reginfo->rootoid_len+1] = tbl_info->max_column + 1;
request->processed = TABLE_ITERATOR_NOTAGAIN;
}
snmp_set_var_objid(request->requestvb,
coloid, reginfo->rootoid_len+2);
request->processed = 1;
}
snmp_free_varbind(table_info->indexes);
table_info->indexes = snmp_clone_varbind(ti_info->results);
/* FALL THROUGH */
case MODE_GET:
case MODE_SET_RESERVE1:
if (ti_info->data_context)
/* we don't add a free pointer, since it's in the
TI_REQUEST_CACHE instead */
netsnmp_request_add_list_data(request,
netsnmp_create_data_list
(TABLE_ITERATOR_NAME,
ti_info->data_context,
NULL));
break;
default:
break;
}
}
/* we change all GETNEXT operations into GET operations.
why? because we're just so nice to the lower levels.
maybe someday they'll pay us for it. doubtful though. */
oldmode = reqinfo->mode;
if (reqinfo->mode == MODE_GETNEXT) {
reqinfo->mode = MODE_GET;
}
} else if (reqinfo->mode == MODE_GET_STASH) {
netsnmp_free_request_data_sets(reqtmp);
SNMP_FREE(reqtmp);
table_info->indexes = old_indexes;
}
/* Finally, we get to call the next handler below us. Boy, wasn't
all that simple? They better be glad they don't have to do it! */
if (reqinfo->mode != MODE_GET_STASH) {
DEBUGMSGTL(("table_iterator", "call subhandler for mode: %s\n",
se_find_label_in_slist("agent_mode", oldmode)));
ret =
netsnmp_call_next_handler(handler, reginfo, reqinfo, requests);
}
/* reverse the previously saved mode if we were a getnext */
if (oldmode == MODE_GETNEXT) {
reqinfo->mode = oldmode;
}
/* cleanup */
if (free_this_index_search)
snmp_free_varbind(free_this_index_search);
return SNMP_ERR_NOERROR;
}
/** inserts table_iterator specific data for a newly
* created row into a request */
NETSNMP_INLINE void
netsnmp_insert_iterator_context(netsnmp_request_info *request, void *data)
{
netsnmp_request_info *req;
netsnmp_table_request_info *table_info = NULL;
netsnmp_variable_list *this_index = NULL;
netsnmp_variable_list *that_index = NULL;
oid base_oid[] = {0, 0}; /* Make sure index OIDs are legal! */
oid this_oid[MAX_OID_LEN];
oid that_oid[MAX_OID_LEN];
size_t this_oid_len, that_oid_len;
if (!request)
return;
/*
* We'll add the new row information to any request
* structure with the same index values as the request
* passed in (which includes that one!).
*
* So construct an OID based on these index values.
*/
table_info = netsnmp_extract_table_info(request);
this_index = table_info->indexes;
build_oid_noalloc(this_oid, MAX_OID_LEN, &this_oid_len,
base_oid, 2, this_index);
/*
* We need to look through the whole of the request list
* (as received by the current handler), as there's no
* guarantee that this routine will be called by the first
* varbind that refers to this row.
* In particular, a RowStatus controlled row creation
* may easily occur later in the variable list.
*
* So first, we rewind to the head of the list....
*/
for (req=request; req->prev; req=req->prev)
;
/*
* ... and then start looking for matching indexes
* (by constructing OIDs from these index values)
*/
for (; req; req=req->next) {
table_info = netsnmp_extract_table_info(req);
that_index = table_info->indexes;
build_oid_noalloc(that_oid, MAX_OID_LEN, &that_oid_len,
base_oid, 2, that_index);
/*
* This request has the same index values,
* so add the newly-created row information.
*/
if (snmp_oid_compare(this_oid, this_oid_len,
that_oid, that_oid_len) == 0) {
netsnmp_request_add_list_data(req,
netsnmp_create_data_list(TABLE_ITERATOR_NAME, data, NULL));
}
}
}
/* neIeee8021QBridgeVlanCurrentTable table mapper */
int
neIeee8021QBridgeVlanCurrentTable_mapper (
netsnmp_mib_handler *handler,
netsnmp_handler_registration *reginfo,
netsnmp_agent_request_info *reqinfo,
netsnmp_request_info *requests)
{
netsnmp_request_info *request;
netsnmp_table_request_info *table_info;
neIeee8021QBridgeVlanCurrentEntry_t *table_entry;
register ieee8021QBridgeVlanCurrentEntry_t *poEntry = NULL;
void *pvOldDdata = NULL;
int ret;
switch (reqinfo->mode)
{
/*
* Read-support (also covers GetNext requests)
*/
case MODE_GET:
for (request = requests; request != NULL; request = request->next)
{
poEntry = (ieee8021QBridgeVlanCurrentEntry_t*) netsnmp_extract_iterator_context (request);
table_info = netsnmp_extract_table_info (request);
if (poEntry == NULL)
{
netsnmp_set_request_error (reqinfo, request, SNMP_NOSUCHINSTANCE);
continue;
}
table_entry = &poEntry->oNe;
switch (table_info->colnum)
{
case NEIEEE8021QBRIDGEVLANCURRENTADMINFLAGS:
snmp_set_var_typed_value (request->requestvb, ASN_OCTET_STR, (u_char*) table_entry->au8AdminFlags, table_entry->u16AdminFlags_len);
break;
case NEIEEE8021QBRIDGEVLANCURRENTOPERSTATE:
snmp_set_var_typed_integer (request->requestvb, ASN_INTEGER, table_entry->i32OperState);
break;
case NEIEEE8021QBRIDGEVLANCURRENTLEARNT:
snmp_set_var_typed_value (request->requestvb, ASN_OCTET_STR, (u_char*) table_entry->pu8Learnt, table_entry->u16Learnt_len);
break;
case NEIEEE8021QBRIDGEVLANCURRENTIFINDEX:
snmp_set_var_typed_integer (request->requestvb, ASN_INTEGER, table_entry->u32IfIndex);
break;
default:
netsnmp_set_request_error (reqinfo, request, SNMP_NOSUCHOBJECT);
break;
}
}
break;
/*
* Write-support
*/
case MODE_SET_RESERVE1:
for (request = requests; request != NULL; request = request->next)
{
poEntry = (ieee8021QBridgeVlanCurrentEntry_t*) netsnmp_extract_iterator_context (request);
table_info = netsnmp_extract_table_info (request);
table_entry = &poEntry->oNe;
switch (table_info->colnum)
{
case NEIEEE8021QBRIDGEVLANCURRENTADMINFLAGS:
ret = netsnmp_check_vb_type_and_max_size (request->requestvb, ASN_OCTET_STR, sizeof (table_entry->au8AdminFlags));
if (ret != SNMP_ERR_NOERROR)
{
netsnmp_set_request_error (reqinfo, request, ret);
return SNMP_ERR_NOERROR;
}
break;
default:
netsnmp_set_request_error (reqinfo, request, SNMP_ERR_NOTWRITABLE);
return SNMP_ERR_NOERROR;
}
}
break;
case MODE_SET_RESERVE2:
for (request = requests; request != NULL; request = request->next)
{
poEntry = (ieee8021QBridgeVlanCurrentEntry_t*) netsnmp_extract_iterator_context (request);
table_info = netsnmp_extract_table_info (request);
if (poEntry == NULL)
{
netsnmp_set_request_error (reqinfo, request, SNMP_NOSUCHINSTANCE);
continue;
}
table_entry = &poEntry->oNe;
switch (table_info->colnum)
{
case NEIEEE8021QBRIDGEVLANCURRENTADMINFLAGS:
if (poEntry->u8RowStatus == xRowStatus_active_c || poEntry->u8RowStatus == xRowStatus_notReady_c)
{
netsnmp_set_request_error (reqinfo, request, SNMP_ERR_RESOURCEUNAVAILABLE);
return SNMP_ERR_NOERROR;
}
break;
}
}
break;
case MODE_SET_FREE:
break;
case MODE_SET_ACTION:
for (request = requests; request != NULL; request = request->next)
{
pvOldDdata = netsnmp_request_get_list_data (request, ROLLBACK_BUFFER);
poEntry = (ieee8021QBridgeVlanCurrentEntry_t*) netsnmp_extract_iterator_context (request);
table_info = netsnmp_extract_table_info (request);
table_entry = &poEntry->oNe;
switch (table_info->colnum)
{
case NEIEEE8021QBRIDGEVLANCURRENTADMINFLAGS:
if (pvOldDdata == NULL && (pvOldDdata = xBuffer_cAlloc (sizeof (xOctetString_t) + sizeof (table_entry->au8AdminFlags))) == NULL)
{
netsnmp_set_request_error (reqinfo, request, SNMP_ERR_RESOURCEUNAVAILABLE);
return SNMP_ERR_NOERROR;
}
else if (pvOldDdata != table_entry)
{
((xOctetString_t*) pvOldDdata)->pData = pvOldDdata + sizeof (xOctetString_t);
((xOctetString_t*) pvOldDdata)->u16Len = table_entry->u16AdminFlags_len;
memcpy (((xOctetString_t*) pvOldDdata)->pData, table_entry->au8AdminFlags, sizeof (table_entry->au8AdminFlags));
netsnmp_request_add_list_data (request, netsnmp_create_data_list (ROLLBACK_BUFFER, pvOldDdata, &xBuffer_free));
}
memset (table_entry->au8AdminFlags, 0, sizeof (table_entry->au8AdminFlags));
memcpy (table_entry->au8AdminFlags, request->requestvb->val.string, request->requestvb->val_len);
table_entry->u16AdminFlags_len = request->requestvb->val_len;
break;
}
}
break;
case MODE_SET_UNDO:
for (request = requests; request != NULL; request = request->next)
{
pvOldDdata = netsnmp_request_get_list_data (request, ROLLBACK_BUFFER);
poEntry = (ieee8021QBridgeVlanCurrentEntry_t*) netsnmp_extract_iterator_context (request);
table_info = netsnmp_extract_table_info (request);
if (poEntry == NULL || pvOldDdata == NULL)
{
continue;
}
table_entry = &poEntry->oNe;
switch (table_info->colnum)
{
case NEIEEE8021QBRIDGEVLANCURRENTADMINFLAGS:
memcpy (table_entry->au8AdminFlags, ((xOctetString_t*) pvOldDdata)->pData, ((xOctetString_t*) pvOldDdata)->u16Len);
table_entry->u16AdminFlags_len = ((xOctetString_t*) pvOldDdata)->u16Len;
break;
}
}
break;
case MODE_SET_COMMIT:
break;
}
return SNMP_ERR_NOERROR;
}
/** implements the table data helper. This is the routine that takes
* care of all SNMP requests coming into the table. */
int
netsnmp_table_data_set_helper_handler(netsnmp_mib_handler *handler,
netsnmp_handler_registration
*reginfo,
netsnmp_agent_request_info *reqinfo,
netsnmp_request_info *requests)
{
netsnmp_table_data_set_storage *data = NULL;
newrow_stash *newrowstash = NULL;
netsnmp_table_row *row, *newrow = NULL;
netsnmp_table_request_info *table_info;
netsnmp_request_info *request;
oid *suffix;
size_t suffix_len;
netsnmp_oid_stash_node **stashp = NULL;
if (!handler)
return SNMPERR_GENERR;
DEBUGMSGTL(("netsnmp_table_data_set", "handler starting\n"));
for (request = requests; request; request = request->next) {
netsnmp_table_data_set *datatable =
(netsnmp_table_data_set *) handler->myvoid;
if (request->processed)
continue;
/*
* extract our stored data and table info
*/
row = netsnmp_extract_table_row(request);
table_info = netsnmp_extract_table_info(request);
suffix = requests->requestvb->name + reginfo->rootoid_len + 2;
suffix_len = requests->requestvb->name_length -
(reginfo->rootoid_len + 2);
if (MODE_IS_SET(reqinfo->mode)) {
char buf[256]; /* is this reasonable size?? */
int rc;
size_t len;
/*
* use a cached copy of the row for modification
*/
/*
* cache location: may have been created already by other
* SET requests in the same master request.
*/
rc = snprintf(buf, sizeof(buf), "dataset_row_stash:%s:",
datatable->table->name);
if ((-1 == rc) || (rc >= sizeof(buf))) {
snmp_log(LOG_ERR,"%s handler name too long\n",
datatable->table->name);
netsnmp_set_request_error(reqinfo, request,
SNMP_ERR_GENERR);
continue;
}
len = sizeof(buf) - rc;
rc = snprint_objid(&buf[rc], len, table_info->index_oid,
table_info->index_oid_len);
if (-1 == rc) {
snmp_log(LOG_ERR,"%s oid or name too long\n",
datatable->table->name);
netsnmp_set_request_error(reqinfo, request,
SNMP_ERR_GENERR);
continue;
}
stashp = (netsnmp_oid_stash_node **)
netsnmp_table_get_or_create_row_stash(reqinfo, buf);
newrowstash
= netsnmp_oid_stash_get_data(*stashp, suffix, suffix_len);
if (!newrowstash) {
if (!row) {
if (datatable->allow_creation) {
/*
* entirely new row. Create the row from the template
*/
newrowstash =
netsnmp_table_data_set_create_newrowstash(
datatable, table_info);
newrow = newrowstash->newrow;
} else if (datatable->rowstatus_column == 0) {
/*
* A RowStatus object may be used to control the
* creation of a new row. But if this object
* isn't declared (and the table isn't marked as
* 'auto-create'), then we can't create a new row.
*/
netsnmp_set_request_error(reqinfo, request,
SNMP_ERR_NOCREATION);
continue;
}
} else {
/*
* existing row that needs to be modified
*/
newrowstash = SNMP_MALLOC_TYPEDEF(newrow_stash);
newrow = netsnmp_table_data_set_clone_row(row);
newrowstash->newrow = newrow;
}
netsnmp_oid_stash_add_data(stashp, suffix, suffix_len,
newrowstash);
} else {
newrow = newrowstash->newrow;
}
/*
* all future SET data modification operations use this
* temp pointer
*/
if (reqinfo->mode == MODE_SET_RESERVE1 ||
reqinfo->mode == MODE_SET_RESERVE2)
row = newrow;
}
if (row)
data = (netsnmp_table_data_set_storage *) row->data;
if (!row || !table_info || !data) {
if (!MODE_IS_SET(reqinfo->mode)) {
netsnmp_set_request_error(reqinfo, request,
SNMP_NOSUCHINSTANCE);
continue;
}
}
data =
netsnmp_table_data_set_find_column(data, table_info->colnum);
switch (reqinfo->mode) {
case MODE_GET:
case MODE_GETNEXT:
case MODE_GETBULK: /* XXXWWW */
if (data && data->data.voidp)
netsnmp_table_data_build_result(reginfo, reqinfo, request,
row,
table_info->colnum,
data->type,
data->data.voidp,
data->data_len);
break;
case MODE_SET_RESERVE1:
if (data) {
/*
* Can we modify the existing row?
*/
if (!data->writable) {
netsnmp_set_request_error(reqinfo, request,
SNMP_ERR_NOTWRITABLE);
} else if (request->requestvb->type != data->type) {
netsnmp_set_request_error(reqinfo, request,
SNMP_ERR_WRONGTYPE);
}
} else if (datatable->rowstatus_column == table_info->colnum) {
/*
* Otherwise, this is where we create a new row using
* the RowStatus object (essentially duplicating the
* steps followed earlier in the 'allow_creation' case)
*/
switch (*(request->requestvb->val.integer)) {
case RS_CREATEANDGO:
case RS_CREATEANDWAIT:
newrowstash =
netsnmp_table_data_set_create_newrowstash(
datatable, table_info);
newrow = newrowstash->newrow;
row = newrow;
netsnmp_oid_stash_add_data(stashp, suffix, suffix_len,
newrowstash);
}
}
break;
case MODE_SET_RESERVE2:
/*
* If the agent receives a SET request for an object in a non-existant
* row, then the RESERVE1 pass will create the row automatically.
*
* But since the row doesn't exist at that point, the test for whether
* the object is writable or not will be skipped. So we need to check
* for this possibility again here.
*
* Similarly, if row creation is under the control of the RowStatus
* object (i.e. allow_creation == 0), but this particular request
* doesn't include such an object, then the row won't have been created,
* and the writable check will also have been skipped. Again - check here.
*/
if (data && data->writable == 0) {
netsnmp_set_request_error(reqinfo, request,
SNMP_ERR_NOTWRITABLE);
continue;
}
if (datatable->rowstatus_column == table_info->colnum) {
switch (*(request->requestvb->val.integer)) {
case RS_ACTIVE:
case RS_NOTINSERVICE:
/*
* Can only operate on pre-existing rows.
*/
if (!newrowstash || newrowstash->created) {
netsnmp_set_request_error(reqinfo, request,
SNMP_ERR_INCONSISTENTVALUE);
continue;
}
break;
case RS_CREATEANDGO:
case RS_CREATEANDWAIT:
/*
* Can only operate on newly created rows.
*/
if (!(newrowstash && newrowstash->created)) {
netsnmp_set_request_error(reqinfo, request,
SNMP_ERR_INCONSISTENTVALUE);
continue;
}
break;
case RS_DESTROY:
/*
* Can operate on new or pre-existing rows.
*/
break;
case RS_NOTREADY:
default:
/*
* Not a valid value to Set
*/
netsnmp_set_request_error(reqinfo, request,
SNMP_ERR_WRONGVALUE);
continue;
}
}
if (!data ) {
netsnmp_set_request_error(reqinfo, request,
SNMP_ERR_NOCREATION);
continue;
}
/*
* modify row and set new value
*/
SNMP_FREE(data->data.string);
data->data.string =
netsnmp_strdup_and_null(request->requestvb->val.string,
request->requestvb->val_len);
if (!data->data.string) {
netsnmp_set_request_error(reqinfo, requests,
SNMP_ERR_RESOURCEUNAVAILABLE);
}
data->data_len = request->requestvb->val_len;
if (datatable->rowstatus_column == table_info->colnum) {
switch (*(request->requestvb->val.integer)) {
case RS_CREATEANDGO:
/*
* XXX: check legality
*/
*(data->data.integer) = RS_ACTIVE;
break;
case RS_CREATEANDWAIT:
/*
* XXX: check legality
*/
*(data->data.integer) = RS_NOTINSERVICE;
break;
case RS_DESTROY:
newrowstash->deleted = 1;
break;
}
}
break;
case MODE_SET_ACTION:
/*
* Install the new row into the stored table.
* Do this only *once* per row ....
*/
if (newrowstash->state != STATE_ACTION) {
newrowstash->state = STATE_ACTION;
if (newrowstash->created) {
netsnmp_table_dataset_add_row(datatable, newrow);
} else {
netsnmp_table_dataset_replace_row(datatable,
row, newrow);
}
}
/*
* ... but every (relevant) varbind in the request will
* need to know about this new row, so update the
* per-request row information regardless
*/
if (newrowstash->created) {
netsnmp_request_add_list_data(request,
netsnmp_create_data_list(TABLE_DATA_NAME,
newrow, NULL));
}
break;
case MODE_SET_UNDO:
/*
* extract the new row, replace with the old or delete
*/
if (newrowstash->state != STATE_UNDO) {
newrowstash->state = STATE_UNDO;
if (newrowstash->created) {
netsnmp_table_dataset_remove_and_delete_row(datatable, newrow);
} else {
netsnmp_table_dataset_replace_row(datatable,
newrow, row);
netsnmp_table_dataset_delete_row(newrow);
}
}
break;
case MODE_SET_COMMIT:
if (newrowstash->state != STATE_COMMIT) {
newrowstash->state = STATE_COMMIT;
if (!newrowstash->created) {
netsnmp_table_dataset_delete_row(row);
}
if (newrowstash->deleted) {
netsnmp_table_dataset_remove_and_delete_row(datatable, newrow);
}
}
break;
case MODE_SET_FREE:
if (newrowstash && newrowstash->state != STATE_FREE) {
newrowstash->state = STATE_FREE;
netsnmp_table_dataset_delete_row(newrow);
}
break;
}
}
/* next handler called automatically - 'AUTO_NEXT' */
return SNMP_ERR_NOERROR;
}
void
get_status(unsigned int clientreg, void *clientarg)
{
/*
* This function returns the value of the status variable.
* If the value of status is 0 (no collection is running), it
* calles collect_data to start one.
*
*/
/*
* Extract the cache from the passed argument.
*/
netsnmp_delegated_cache *cache = (netsnmp_delegated_cache *) clientarg;
netsnmp_request_info *requests;
netsnmp_agent_request_info *reqinfo;
u_long *delay_time_cache = NULL;
/*
* Make sure the cache created earlier is still
* valid. If not, the request timed out for some reason and we
* do not need to keep processing things. Should never happen, but
* this double checks.
*/
cache = netsnmp_handler_check_cache(cache);
if (!cache) {
snmp_log(LOG_ERR, "illegal call to return delayed response\n");
return;
}
/*
* Re-establish the previous pointers,
*/
reqinfo = cache->reqinfo;
requests = cache->requests;
DEBUGMSGTL(("demo_module_10",
"continuing delayed request, mode = %d\n",
cache->reqinfo->mode));
/*
* Set delegated to zero to indicate that the request is no longer
* delegated and answer the query.
*/
requests->delegated = 0;
switch (cache->reqinfo->mode) {
/*
* Registering as an instance means we do not need to deal with
* GETNEXT processing, so we do not handle it here at all.
*
* However, since the instance handler already reset the mode
* back to GETNEXT from the GET mode, we need to do the
* same thing in both cases.
*
*/
case MODE_GET:
// no collection running, start one.
if (status == 0)
collect_data();
snmp_set_var_typed_value(requests->requestvb,
ASN_INTEGER, (u_char *) & status,
sizeof (status) /* length in bytes */);
break;
case MODE_SET_RESERVE1:
/*
* check type
*/
if (requests->requestvb->type != ASN_INTEGER) {
/*
* If not an integer, return SNMP error.
*/
netsnmp_set_request_error(reqinfo, requests,
SNMP_ERR_WRONGTYPE);
/*
* Free cache. It is no longer needed.
*/
netsnmp_free_delegated_cache(cache);
return;
}
break;
case MODE_SET_RESERVE2:
/*
* Store old value for UNDO support in the future.
*/
memdup((u_char **) & delay_time_cache,
(u_char *) & delay_time, sizeof(delay_time));
/*
* malloc failed
*/
if (delay_time_cache == NULL) {
netsnmp_set_request_error(reqinfo, requests,
SNMP_ERR_RESOURCEUNAVAILABLE);
netsnmp_free_delegated_cache(cache);
return;
}
/*
* Add our temporary information to the request itself.
* This is then retrivable later. The free function
* passed auto-frees it when the request is later
* deleted.
*/
netsnmp_request_add_list_data(requests,
netsnmp_create_data_list
(DELAYED_INSTANCE_SET_NAME,
delay_time_cache, free));
break;
case MODE_SET_ACTION:
// get status integer from request
// if status == 0, start data collection, else return error
if (*(requests->requestvb->val.integer) == 0) {
status = *(requests->requestvb->val.integer);
collect_data();
} else
netsnmp_set_request_error(reqinfo, requests,
SNMP_ERR_WRONGTYPE);
break;
case MODE_SET_UNDO:
/*
* A failure occurred. Reset to the
* previously value by extracting the previosuly
* stored information from the request.
*/
delay_time =
*((u_long *) netsnmp_request_get_list_data(requests,
DELAYED_INSTANCE_SET_NAME));
break;
case MODE_SET_COMMIT:
break;
case MODE_SET_FREE:
/*
* The only thing to do here is free the old memdup'ed
* value, but it's auto-freed by the datalist recovery, so
* we don't have anything to actually do here
*/
break;
}
/*
* free the information cache
*/
netsnmp_free_delegated_cache(cache);
}