mtetriggertable.c

开发snmp的开发包有两个开放的SNMP开发库

/*
 * var_mteTriggerTable():
 *   Handle this table separately from the scalar value case.
 *   The workings of this are basically the same as for var_mteTriggerTable above.
 */
unsigned char  *
var_mteTriggerTable(struct variable *vp,
                    oid * name,
                    size_t * length,
                    int exact,
                    size_t * var_len, WriteMethod ** write_method)
{


    struct mteTriggerTable_data *StorageTmp = NULL;


    DEBUGMSGTL(("mteTriggerTable",
                "var_mteTriggerTable: Entering...  \n"));
    /*
     * this assumes you have registered all your data properly
     */
    if ((StorageTmp =
         header_complex(mteTriggerTableStorage, vp, name, length, exact,
                        var_len, write_method)) == NULL) {
        if (vp->magic == MTETRIGGERENTRYSTATUS)
            *write_method = write_mteTriggerEntryStatus;
        return NULL;
    }


    /*
     * this is where we do the value assignments for the mib results.
     */
    switch (vp->magic) {


    case MTETRIGGERCOMMENT:
        *write_method = write_mteTriggerComment;
        *var_len = StorageTmp->mteTriggerCommentLen;
        return (u_char *) StorageTmp->mteTriggerComment;

    case MTETRIGGERTEST:
        *write_method = write_mteTriggerTest;
        *var_len = StorageTmp->mteTriggerTestLen;
        return (u_char *) StorageTmp->mteTriggerTest;

    case MTETRIGGERSAMPLETYPE:
        *write_method = write_mteTriggerSampleType;
        *var_len = sizeof(StorageTmp->mteTriggerSampleType);
        return (u_char *) & StorageTmp->mteTriggerSampleType;

    case MTETRIGGERVALUEID:
        *write_method = write_mteTriggerValueID;
        *var_len = StorageTmp->mteTriggerValueIDLen * sizeof(oid);
        return (u_char *) StorageTmp->mteTriggerValueID;

    case MTETRIGGERVALUEIDWILDCARD:
        *write_method = write_mteTriggerValueIDWildcard;
        *var_len = sizeof(StorageTmp->mteTriggerValueIDWildcard);
        return (u_char *) & StorageTmp->mteTriggerValueIDWildcard;

    case MTETRIGGERTARGETTAG:
        *write_method = write_mteTriggerTargetTag;
        *var_len = StorageTmp->mteTriggerTargetTagLen;
        return (u_char *) StorageTmp->mteTriggerTargetTag;

    case MTETRIGGERCONTEXTNAME:
        *write_method = write_mteTriggerContextName;
        *var_len = StorageTmp->mteTriggerContextNameLen;
        return (u_char *) StorageTmp->mteTriggerContextName;

    case MTETRIGGERCONTEXTNAMEWILDCARD:
        *write_method = write_mteTriggerContextNameWildcard;
        *var_len = sizeof(StorageTmp->mteTriggerContextNameWildcard);
        return (u_char *) & StorageTmp->mteTriggerContextNameWildcard;

    case MTETRIGGERFREQUENCY:
        *write_method = write_mteTriggerFrequency;
        *var_len = sizeof(StorageTmp->mteTriggerFrequency);
        return (u_char *) & StorageTmp->mteTriggerFrequency;

    case MTETRIGGEROBJECTSOWNER:
        *write_method = write_mteTriggerObjectsOwner;
        *var_len = StorageTmp->mteTriggerObjectsOwnerLen;
        return (u_char *) StorageTmp->mteTriggerObjectsOwner;

    case MTETRIGGEROBJECTS:
        *write_method = write_mteTriggerObjects;
        *var_len = StorageTmp->mteTriggerObjectsLen;
        return (u_char *) StorageTmp->mteTriggerObjects;

    case MTETRIGGERENABLED:
        *write_method = write_mteTriggerEnabled;
        *var_len = sizeof(StorageTmp->mteTriggerEnabled);
        return (u_char *) & StorageTmp->mteTriggerEnabled;

    case MTETRIGGERENTRYSTATUS:
        *write_method = write_mteTriggerEntryStatus;
        *var_len = sizeof(StorageTmp->mteTriggerEntryStatus);
        return (u_char *) & StorageTmp->mteTriggerEntryStatus;


    default:
        ERROR_MSG("");
    }
    return NULL;
}




int
write_mteTriggerComment(int action,
                        u_char * var_val,
                        u_char var_val_type,
                        size_t var_val_len,
                        u_char * statP, oid * name, size_t name_len)
{
    static char    *tmpvar;
    struct mteTriggerTable_data *StorageTmp = NULL;
    static size_t   tmplen;
    size_t          newlen =
        name_len - (sizeof(mteTriggerTable_variables_oid) / sizeof(oid) +
                    3 - 1);


    DEBUGMSGTL(("mteTriggerTable",
                "write_mteTriggerComment entering action=%d...  \n",
                action));
    if ((StorageTmp =
         header_complex(mteTriggerTableStorage, NULL,
                        &name[sizeof(mteTriggerTable_variables_oid) /
                              sizeof(oid) + 3 - 1], &newlen, 1, NULL,
                        NULL)) == NULL)
        return SNMP_ERR_NOSUCHNAME;     /* remove if you support creation here */


    switch (action) {
    case RESERVE1:
        if (var_val_type != ASN_OCTET_STR) {
            snmp_log(LOG_ERR,
                     "write to mteTriggerComment not ASN_OCTET_STR\n");
            return SNMP_ERR_WRONGTYPE;
        }
        if (StorageTmp->storageType != ST_NONVOLATILE)
            return SNMP_ERR_NOTWRITABLE;

        break;


    case RESERVE2:
        /*
         * memory reseveration, final preparation... 
         */
        break;


    case FREE:
        /*
         * Release any resources that have been allocated 
         */
        break;


    case ACTION:
        /*
         * The variable has been stored in string for
         * you to use, and you have just been asked to do something with
         * it.  Note that anything done here must be reversable in the UNDO case 
         */
        tmpvar = StorageTmp->mteTriggerComment;
        tmplen = StorageTmp->mteTriggerCommentLen;
        memdup((u_char **) & StorageTmp->mteTriggerComment, var_val,
               var_val_len);
        StorageTmp->mteTriggerCommentLen = var_val_len;
        break;


    case UNDO:
        /*
         * Back out any changes made in the ACTION case 
         */
        SNMP_FREE(StorageTmp->mteTriggerComment);
        StorageTmp->mteTriggerComment = tmpvar;
        StorageTmp->mteTriggerCommentLen = tmplen;
        break;


    case COMMIT:
        /*
         * Things are working well, so it's now safe to make the change
         * permanently.  Make sure that anything done here can't fail! 
         */
        SNMP_FREE(tmpvar);
        break;
    }
    return SNMP_ERR_NOERROR;
}



int
write_mteTriggerTest(int action,
                     u_char * var_val,
                     u_char var_val_type,
                     size_t var_val_len,
                     u_char * statP, oid * name, size_t name_len)
{
    static char    *tmpvar;
    struct mteTriggerTable_data *StorageTmp = NULL;
    static size_t   tmplen;
    size_t          newlen =
        name_len - (sizeof(mteTriggerTable_variables_oid) / sizeof(oid) +
                    3 - 1);


    DEBUGMSGTL(("mteTriggerTable",
                "write_mteTriggerTest entering action=%d...  \n", action));
    if ((StorageTmp =
         header_complex(mteTriggerTableStorage, NULL,
                        &name[sizeof(mteTriggerTable_variables_oid) /
                              sizeof(oid) + 3 - 1], &newlen, 1, NULL,
                        NULL)) == NULL)
        return SNMP_ERR_NOSUCHNAME;     /* remove if you support creation here */


    switch (action) {
    case RESERVE1:
        if (var_val_type != ASN_OCTET_STR) {
            snmp_log(LOG_ERR, "write to mteTriggerTest not ASN_OCTET_STR\n");
            return SNMP_ERR_WRONGTYPE;
        }
        if (StorageTmp->storageType != ST_NONVOLATILE)
            return SNMP_ERR_NOTWRITABLE;
        break;


    case RESERVE2:
        /*
         * memory reseveration, final preparation... 
         */
        break;


    case FREE:
        /*
         * Release any resources that have been allocated 
         */
        break;


    case ACTION:
        /*
         * The variable has been stored in string for
         * you to use, and you have just been asked to do something with
         * it.  Note that anything done here must be reversable in the UNDO case 
         */
        tmpvar = StorageTmp->mteTriggerTest;
        tmplen = StorageTmp->mteTriggerTestLen;
        memdup((u_char **) & StorageTmp->mteTriggerTest, var_val,
               var_val_len);
        StorageTmp->mteTriggerTestLen = var_val_len;
        break;


    case UNDO:
        /*
         * Back out any changes made in the ACTION case 
         */
        SNMP_FREE(StorageTmp->mteTriggerTest);
        StorageTmp->mteTriggerTest = tmpvar;
        StorageTmp->mteTriggerTestLen = tmplen;
        break;


    case COMMIT:
        /*
         * Things are working well, so it's now safe to make the change
         * permanently.  Make sure that anything done here can't fail! 
         */
        SNMP_FREE(tmpvar);
        break;
    }
    return SNMP_ERR_NOERROR;
}



int
write_mteTriggerSampleType(int action,
                           u_char * var_val,
                           u_char var_val_type,
                           size_t var_val_len,
                           u_char * statP, oid * name, size_t name_len)
{
    static int      tmpvar;
    struct mteTriggerTable_data *StorageTmp = NULL;
    size_t          newlen =
        name_len - (sizeof(mteTriggerTable_variables_oid) / sizeof(oid) +
                    3 - 1);


    DEBUGMSGTL(("mteTriggerTable",
                "write_mteTriggerSampleType entering action=%d...  \n",
                action));
    if ((StorageTmp =
         header_complex(mteTriggerTableStorage, NULL,
                        &name[sizeof(mteTriggerTable_variables_oid) /
                              sizeof(oid) + 3 - 1], &newlen, 1, NULL,
                        NULL)) == NULL)
        return SNMP_ERR_NOSUCHNAME;     /* remove if you support creation here */


    switch (action) {
    case RESERVE1:
        if (var_val_type != ASN_INTEGER) {
            snmp_log(LOG_ERR,
                     "write to mteTriggerSampleType not ASN_INTEGER\n");
            return SNMP_ERR_WRONGTYPE;
        }
        if (StorageTmp->storageType != ST_NONVOLATILE)
            return SNMP_ERR_NOTWRITABLE;
        break;


    case RESERVE2:
        /*
         * memory reseveration, final preparation... 
         */
        break;


    case FREE:
        /*
         * Release any resources that have been allocated 
         */
        break;


    case ACTION:
        /*
         * The variable has been stored in long_ret for
         * you to use, and you have just been asked to do something with
         * it.  Note that anything done here must be reversable in the UNDO case 
         */
        tmpvar = StorageTmp->mteTriggerSampleType;
        StorageTmp->mteTriggerSampleType = *((long *) var_val);
        break;


    case UNDO:
        /*
         * Back out any chang