read_only.c

#include <net-snmp/net-snmp-config.h>

#include <net-snmp/net-snmp-includes.h>
#include <net-snmp/agent/net-snmp-agent-includes.h>

#include <net-snmp/agent/read_only.h>

netsnmp_mib_handler *
netsnmp_get_read_only_handler(void)
{
    netsnmp_mib_handler *ret = NULL;
    
    ret = netsnmp_create_handler("read_only",
                                 netsnmp_read_only_helper);
    if (ret) {
        ret->flags |= MIB_HANDLER_AUTO_NEXT;
    }
    return ret;
}

int
netsnmp_read_only_helper(netsnmp_mib_handler *handler,
                         netsnmp_handler_registration *reginfo,
                         netsnmp_agent_request_info *reqinfo,
                         netsnmp_request_info *requests)
{

    DEBUGMSGTL(("helper:read_only", "Got request\n"));

    switch (reqinfo->mode) {

#ifndef NETSNMP_NO_WRITE_SUPPORT
    case MODE_SET_RESERVE1:
    case MODE_SET_RESERVE2:
    case MODE_SET_ACTION:
    case MODE_SET_COMMIT:
    case MODE_SET_FREE:
    case MODE_SET_UNDO:
        netsnmp_request_set_error_all(requests, SNMP_ERR_NOTWRITABLE);
        return SNMP_ERR_NOTWRITABLE;
#endif /* NETSNMP_NO_WRITE_SUPPORT */

    case MODE_GET:
    case MODE_GETNEXT:
    case MODE_GETBULK:
        /* next handler called automatically - 'AUTO_NEXT' */
        return SNMP_ERR_NOERROR;
    }

    netsnmp_request_set_error_all(requests, SNMP_ERR_GENERR);
    return SNMP_ERR_GENERR;
}

void
netsnmp_init_read_only_helper(void)
{
    netsnmp_register_handler_by_name("read_only",
                                     netsnmp_get_read_only_handler());
}