void
shutdown_snmp_logging(void)
{
snmp_disable_log();
while(NULL != logh_head)
netsnmp_remove_loghandler( logh_head );
}
int
snmp_log_options(char *optarg, int argc, char *const *argv)
{
char *cp = optarg;
/*
* Hmmm... this doesn't seem to work.
* The main agent 'getopt' handling assumes
* that the -L option takes an argument,
* and objects if this is missing.
* Trying to differentiate between
* new-style "-Lx", and old-style "-L xx"
* is likely to be a major headache.
*/
char missing_opt = 'e'; /* old -L is new -Le */
int priority = LOG_DEBUG;
int pri_max = LOG_EMERG;
int inc_optind = 0;
netsnmp_log_handler *logh;
DEBUGMSGT(("logging:options", "optarg: '%s', argc %d, argv '%s'\n",
optarg, argc, argv ? argv[0] : "NULL"));
optarg++;
if (!*cp)
cp = &missing_opt;
/*
* Support '... -Lx=value ....' syntax
*/
if (*optarg == '=') {
optarg++;
}
/*
* and '.... "-Lx value" ....' (*with* the quotes)
*/
while (*optarg && isspace((unsigned char)(*optarg))) {
optarg++;
}
/*
* Finally, handle ".... -Lx value ...." syntax
* (*without* surrounding quotes)
*/
if ((!*optarg) && (NULL != argv)) {
/*
* We've run off the end of the argument
* so move on to the next.
* But we might not actually need it, so don't
* increment optind just yet!
*/
optarg = argv[optind];
inc_optind = 1;
}
DEBUGMSGT(("logging:options", "*cp: '%c'\n", *cp));
switch (*cp) {
#ifndef NETSNMP_FEATURE_REMOVE_LOGGING_STDIO
/*
* Log to Standard Error
*/
case 'E':
priority = decode_priority( &optarg, &pri_max );
if (priority == -1) return -1;
if (inc_optind)
optind++;
/* Fallthrough */
case 'e':
logh = netsnmp_register_stdio_loghandler(0, priority, pri_max, "stderr");
break;
/*
* Log to Standard Output
*/
case 'O':
priority = decode_priority( &optarg, &pri_max );
if (priority == -1) return -1;
if (inc_optind)
optind++;
/* Fallthrough */
case 'o':
logh = netsnmp_register_stdio_loghandler( 1, priority, pri_max, "stdout" );
break;
#endif /* NETSNMP_FEATURE_REMOVE_LOGGING_STDIO */
/*
* Log to a named file
*/
#ifndef NETSNMP_FEATURE_REMOVE_LOGGING_FILE
case 'F':
priority = decode_priority( &optarg, &pri_max );
if (priority == -1) return -1;
while (*optarg == ' ') optarg++;
if (!*optarg && !argv) return -1;
else if (!*optarg) optarg = argv[++optind];
/* FALL THROUGH */
case 'f':
if (inc_optind)
optind++;
if (!optarg) {
fprintf(stderr, "Missing log file\n");
return -1;
}
DEBUGMSGTL(("logging:options", "%d-%d: '%s'\n", priority, pri_max, optarg));
logh = netsnmp_register_filelog_handler(optarg, priority, pri_max,
-1);
break;
#endif /* NETSNMP_FEATURE_REMOVE_LOGGING_FILE */
#ifndef NETSNMP_FEATURE_REMOVE_LOGGING_SYSLOG
/*
* Log to syslog
*/
case 'S':
priority = decode_priority( &optarg, &pri_max );
if (priority == -1 || !argv) return -1;
if (!optarg[0]) {
/* The command line argument with priority does not contain log
* facility. The facility must be in next argument then. */
optind++;
if (optind < argc)
optarg = argv[optind];
}
/* Fallthrough */
case 's':
if (inc_optind)
optind++;
if (!optarg) {
fprintf(stderr, "Missing syslog facility\n");
return -1;
}
logh = netsnmp_register_loghandler(NETSNMP_LOGHANDLER_SYSLOG, priority);
if (logh) {
int facility = decode_facility(optarg);
if (facility == -1) {
netsnmp_remove_loghandler(logh);
return -1;
}
logh->pri_max = pri_max;
logh->token = strdup(snmp_log_syslogname(NULL));
logh->magic = (void *)(intptr_t)facility;
snmp_enable_syslog_ident(snmp_log_syslogname(NULL), facility);
}
break;
#endif /* NETSNMP_FEATURE_REMOVE_LOGGING_SYSLOG */
/*
* Don't log
*/
case 'N':
priority = decode_priority( &optarg, &pri_max );
if (priority == -1) return -1;
if (inc_optind)
optind++;
/* Fallthrough */
case 'n':
/*
* disable all logs to clean them up (close files, etc),
* remove all log handlers, then register a null handler.
*/
snmp_disable_log();
while(NULL != logh_head)
netsnmp_remove_loghandler( logh_head );
logh = netsnmp_register_loghandler(NETSNMP_LOGHANDLER_NONE, priority);
if (logh) {
logh->pri_max = pri_max;
}
break;
default:
fprintf(stderr, "Unknown logging option passed to -L: %c.\n", *cp);
return -1;
}
return 0;
}
int
snmp_log_options(char *optarg, int argc, char *const *argv)
{
char *cp = optarg;
/*
* Hmmm... this doesn't seem to work.
* The main agent 'getopt' handling assumes
* that the -L option takes an argument,
* and objects if this is missing.
* Trying to differentiate between
* new-style "-Lx", and old-style "-L xx"
* is likely to be a major headache.
*/
char missing_opt = 'e'; /* old -L is new -Le */
int priority = LOG_DEBUG;
int pri_max = LOG_EMERG;
int inc_optind = 0;
netsnmp_log_handler *logh;
optarg++;
if (!*cp)
cp = &missing_opt;
/*
* Support '... -Lx=value ....' syntax
*/
if (*optarg == '=') {
optarg++;
}
/*
* and '.... "-Lx value" ....' (*with* the quotes)
*/
while (*optarg && isspace(*optarg)) {
optarg++;
}
/*
* Finally, handle ".... -Lx value ...." syntax
* (*without* surrounding quotes)
*/
if ((!*optarg) && (NULL != argv)) {
/*
* We've run off the end of the argument
* so move on to the next.
* But we might not actually need it, so don't
* increment optind just yet!
*/
optarg = argv[optind];
inc_optind = 1;
}
switch (*cp) {
/*
* Log to Standard Error
*/
case 'E':
priority = decode_priority( &optarg, &pri_max );
if (priority == -1) return -1;
if (inc_optind)
optind++;
/* Fallthrough */
case 'e':
logh = netsnmp_register_loghandler(NETSNMP_LOGHANDLER_STDERR, priority);
if (logh) {
logh->pri_max = pri_max;
logh->token = strdup("stderr");
}
break;
/*
* Log to Standard Output
*/
case 'O':
priority = decode_priority( &optarg, &pri_max );
if (priority == -1) return -1;
if (inc_optind)
optind++;
/* Fallthrough */
case 'o':
logh = netsnmp_register_loghandler(NETSNMP_LOGHANDLER_STDERR, priority);
if (logh) {
logh->pri_max = pri_max;
logh->token = strdup("stdout");
logh->imagic = 1; /* stdout, not stderr */
}
break;
/*
* Log to a named file
*/
case 'F':
priority = decode_priority( &optarg, &pri_max );
if (priority == -1 || !argv) return -1;
optarg = argv[++optind];
/* Fallthrough */
case 'f':
if (inc_optind)
optind++;
if (!optarg) {
fprintf(stderr, "Missing log file\n");
return -1;
}
logh = netsnmp_register_loghandler(NETSNMP_LOGHANDLER_FILE, priority);
if (logh) {
logh->pri_max = pri_max;
logh->token = strdup(optarg);
netsnmp_enable_filelog(logh,
netsnmp_ds_get_boolean(NETSNMP_DS_LIBRARY_ID,
NETSNMP_DS_LIB_APPEND_LOGFILES));
}
break;
/*
* Log to syslog
*/
case 'S':
priority = decode_priority( &optarg, &pri_max );
if (priority == -1 || !argv) return -1;
if (!optarg[0]) {
/* The command line argument with priority does not contain log
* facility. The facility must be in next argument then. */
optind++;
if (optind < argc)
optarg = argv[optind];
}
/* Fallthrough */
case 's':
if (inc_optind)
optind++;
if (!optarg) {
fprintf(stderr, "Missing syslog facility\n");
return -1;
}
logh = netsnmp_register_loghandler(NETSNMP_LOGHANDLER_SYSLOG, priority);
if (logh) {
int facility = decode_facility(optarg);
if (facility == -1) return -1;
logh->pri_max = pri_max;
logh->token = strdup(snmp_log_syslogname(0));
logh->magic = (void *)(intptr_t)facility;
snmp_enable_syslog_ident(snmp_log_syslogname(0), facility);
}
break;
/*
* Don't log
*/
case 'N':
priority = decode_priority( &optarg, &pri_max );
if (priority == -1) return -1;
if (inc_optind)
optind++;
/* Fallthrough */
case 'n':
/*
* disable all logs to clean them up (close files, etc),
* remove all log handlers, then register a null handler.
*/
snmp_disable_log();
while(NULL != logh_head)
netsnmp_remove_loghandler( logh_head );
logh = netsnmp_register_loghandler(NETSNMP_LOGHANDLER_NONE, priority);
if (logh) {
logh->pri_max = pri_max;
}
break;
default:
fprintf(stderr, "Unknown logging option passed to -L: %c.\n", *cp);
return -1;
}
return 0;
}
int
handle_nsLoggingTable(netsnmp_mib_handler *handler,
netsnmp_handler_registration *reginfo,
netsnmp_agent_request_info *reqinfo,
netsnmp_request_info *requests)
{
long temp;
netsnmp_request_info *request = NULL;
netsnmp_table_request_info *table_info = NULL;
netsnmp_log_handler *logh = NULL;
netsnmp_variable_list *idx = NULL;
switch (reqinfo->mode) {
case MODE_GET:
for (request=requests; request; request=request->next) {
if (request->processed != 0)
continue;
logh = (netsnmp_log_handler*)netsnmp_extract_iterator_context(request);
table_info = netsnmp_extract_table_info(request);
switch (table_info->colnum) {
case NSLOGGING_TYPE:
if (!logh) {
netsnmp_set_request_error(reqinfo, request, SNMP_NOSUCHINSTANCE);
continue;
}
temp = logh->type;
snmp_set_var_typed_value(request->requestvb, ASN_INTEGER,
(u_char*)&temp,
sizeof(temp));
break;
case NSLOGGING_MAXLEVEL:
if (!logh) {
netsnmp_set_request_error(reqinfo, request, SNMP_NOSUCHINSTANCE);
continue;
}
temp = logh->pri_max;
snmp_set_var_typed_value(request->requestvb, ASN_INTEGER,
(u_char*)&temp,
sizeof(temp));
break;
case NSLOGGING_STATUS:
if (!logh) {
netsnmp_set_request_error(reqinfo, request, SNMP_NOSUCHINSTANCE);
continue;
}
temp = (logh->type ?
(logh->enabled ?
RS_ACTIVE:
RS_NOTINSERVICE) :
RS_NOTREADY);
snmp_set_var_typed_value(request->requestvb, ASN_INTEGER,
(u_char*)&temp, sizeof(temp));
break;
default:
netsnmp_set_request_error(reqinfo, request, SNMP_NOSUCHOBJECT);
continue;
}
}
break;
#ifndef NETSNMP_NO_WRITE_SUPPORT
case MODE_SET_RESERVE1:
for (request=requests; request; request=request->next) {
if ( request->status != 0 ) {
return SNMP_ERR_NOERROR; /* Already got an error */
}
logh = (netsnmp_log_handler*)netsnmp_extract_iterator_context(request);
table_info = netsnmp_extract_table_info(request);
switch (table_info->colnum) {
case NSLOGGING_TYPE:
if ( request->requestvb->type != ASN_INTEGER ) {
netsnmp_set_request_error(reqinfo, request, SNMP_ERR_WRONGTYPE);
return SNMP_ERR_WRONGTYPE;
}
if (*request->requestvb->val.integer < 0 ) {
netsnmp_set_request_error(reqinfo, request, SNMP_ERR_WRONGVALUE);
return SNMP_ERR_WRONGVALUE;
}
/*
* It's OK to create a new logging entry
* (either in one go, or built up using createAndWait)
* but it's not possible to change the type of an entry
* once it's been created.
*/
if (logh && logh->type) {
netsnmp_set_request_error(reqinfo, request, SNMP_ERR_NOTWRITABLE);
return SNMP_ERR_NOTWRITABLE;
}
break;
case NSLOGGING_MAXLEVEL:
if ( request->requestvb->type != ASN_INTEGER ) {
netsnmp_set_request_error(reqinfo, request, SNMP_ERR_WRONGTYPE);
return SNMP_ERR_WRONGTYPE;
}
if (*request->requestvb->val.integer < 0 ||
*request->requestvb->val.integer > 7 ) {
netsnmp_set_request_error(reqinfo, request, SNMP_ERR_WRONGVALUE);
return SNMP_ERR_WRONGVALUE;
}
break;
case NSLOGGING_STATUS:
if ( request->requestvb->type != ASN_INTEGER ) {
netsnmp_set_request_error(reqinfo, request, SNMP_ERR_WRONGTYPE);
return SNMP_ERR_WRONGTYPE;
}
switch ( *request->requestvb->val.integer ) {
case RS_ACTIVE:
case RS_NOTINSERVICE:
/*
* Can only work on existing rows
*/
if (!logh) {
netsnmp_set_request_error(reqinfo, request,
SNMP_ERR_INCONSISTENTVALUE);
return SNMP_ERR_INCONSISTENTVALUE;
}
break;
case RS_CREATEANDWAIT:
case RS_CREATEANDGO:
/*
* Can only work with new rows
*/
if (logh) {
netsnmp_set_request_error(reqinfo, request,
SNMP_ERR_INCONSISTENTVALUE);
return SNMP_ERR_INCONSISTENTVALUE;
}
/*
* Normally, we'd create the row at a later stage
* (probably during the RESERVE2 or ACTION passes)
*
* But we need to check that the values are
* consistent during the ACTION pass (which is the
* latest that an error can be safely handled),
* so the values all need to be set up before this
* (i.e. during the RESERVE2 pass)
* So the new row needs to be created before that
* in order to have somewhere to put them.
*
* That's why we're doing this here.
*/
idx = table_info->indexes;
logh = netsnmp_register_loghandler(
/* not really, but we need a valid type */
NETSNMP_LOGHANDLER_STDOUT,
*idx->val.integer);
if (!logh) {
netsnmp_set_request_error(reqinfo, request,
SNMP_ERR_GENERR); /* ??? */
return SNMP_ERR_GENERR;
}
idx = idx->next_variable;
logh->type = 0;
logh->token = strdup((char *) idx->val.string);
netsnmp_insert_iterator_context(request, (void*)logh);
break;
case RS_DESTROY:
/*
* Can work with new or existing rows
*/
break;
case RS_NOTREADY:
default:
netsnmp_set_request_error(reqinfo, request,
SNMP_ERR_WRONGVALUE);
return SNMP_ERR_WRONGVALUE;
}
break;
default:
netsnmp_set_request_error(reqinfo, request, SNMP_NOSUCHOBJECT);
return SNMP_NOSUCHOBJECT;
}
}
break;
case MODE_SET_RESERVE2:
for (request=requests; request; request=request->next) {
if ( request->status != 0 ) {
return SNMP_ERR_NOERROR; /* Already got an error */
}
logh = (netsnmp_log_handler*)netsnmp_extract_iterator_context(request);
table_info = netsnmp_extract_table_info(request);
switch (table_info->colnum) {
case NSLOGGING_TYPE:
/*
* If we're creating a row using createAndGo,
* we need to set the type early, so that we
* can validate it in the ACTION pass.
*
* Remember that we need to be able to reverse this
*/
if ( logh )
logh->type = *request->requestvb->val.integer;
break;
/*
* Don't need to handle nsLogToken or nsLogStatus in this pass
*/
}
}
break;
case MODE_SET_ACTION:
for (request=requests; request; request=request->next) {
if (request->processed != 0)
continue;
if ( request->status != 0 ) {
return SNMP_ERR_NOERROR; /* Already got an error */
}
logh = (netsnmp_log_handler*)netsnmp_extract_iterator_context(request);
table_info = netsnmp_extract_table_info(request);
switch (table_info->colnum) {
case NSLOGGING_STATUS:
/*
* This is where we can check the internal consistency
* of the request. Basically, for a row to be marked
* 'active', then there needs to be a valid type value.
*/
switch ( *request->requestvb->val.integer ) {
case RS_ACTIVE:
case RS_CREATEANDGO:
if ( !logh || !logh->type ) {
netsnmp_set_request_error(reqinfo, request,
SNMP_ERR_INCONSISTENTVALUE);
return SNMP_ERR_INCONSISTENTVALUE;
}
break;
}
break;
/*
* Don't need to handle nsLogToken or nsLogType in this pass
*/
}
}
break;
case MODE_SET_FREE:
case MODE_SET_UNDO:
/*
* If any resources were allocated in either of the
* two RESERVE passes, they need to be released here,
* and any assignments (in RESERVE2) reversed.
*
* Nothing additional will have been done during ACTION
* so this same code can do for UNDO as well.
*/
for (request=requests; request; request=request->next) {
if (request->processed != 0)
continue;
logh = (netsnmp_log_handler*)netsnmp_extract_iterator_context(request);
table_info = netsnmp_extract_table_info(request);
switch (table_info->colnum) {
case NSLOGGING_TYPE:
/*
* If we've been setting the type, and the request
* has failed, then revert to an unset type.
*
* We need to be careful here - if the reason it failed is
* that the type was already set, then we shouldn't "undo"
* the assignment (since it won't actually have been made).
*
* Check the current value against the 'new' one. If they're
* the same, then this is probably a successful assignment,
* and the failure was elsewhere, so we need to undo it.
* (Or else there was an attempt to write the same value!)
*/
if ( logh && logh->type == *request->requestvb->val.integer )
logh->type = 0;
break;
case NSLOGGING_STATUS:
temp = *request->requestvb->val.integer;
if ( logh && ( temp == RS_CREATEANDGO ||
temp == RS_CREATEANDWAIT)) {
netsnmp_remove_loghandler( logh );
}
break;
/*
* Don't need to handle nsLogToken in this pass
*/
}
}
break;
case MODE_SET_COMMIT:
for (request=requests; request; request=request->next) {
if (request->processed != 0)
continue;
if ( request->status != 0 ) {
return SNMP_ERR_NOERROR; /* Already got an error */
}
logh = (netsnmp_log_handler*)netsnmp_extract_iterator_context(request);
if (!logh) {
netsnmp_set_request_error(reqinfo, request, SNMP_ERR_COMMITFAILED);
return SNMP_ERR_COMMITFAILED; /* Shouldn't happen! */
}
table_info = netsnmp_extract_table_info(request);
switch (table_info->colnum) {
case NSLOGGING_MAXLEVEL:
logh->pri_max = *request->requestvb->val.integer;
break;
case NSLOGGING_STATUS:
switch (*request->requestvb->val.integer) {
case RS_ACTIVE:
case RS_CREATEANDGO:
netsnmp_enable_this_loghandler(logh);
break;
case RS_NOTINSERVICE:
case RS_CREATEANDWAIT:
netsnmp_disable_this_loghandler(logh);
break;
case RS_DESTROY:
netsnmp_remove_loghandler( logh );
break;
}
break;
}
}
break;
#endif /* !NETSNMP_NO_WRITE_SUPPORT */
}
return SNMP_ERR_NOERROR;
}
