expexpressiontable.c

snmp的源代码,已经在我的ubuntu下编译通过

                                           &StorageTmp->pdu_securityLevel,
                                           &tmpint);
                cptr =
                    read_config_store_data(ASN_OBJECT_ID, cptr,
                                           (void *) (&StorageTmp->
                                                     pdu_tDomain),
                                           &StorageTmp->pdu_tDomainLen);
                cptr =
                    read_config_store_data(ASN_OCTET_STR, cptr,
                                           &StorageTmp->pdu_transport,
                                           &StorageTmp->pdu_transportLen);
                cptr =
                    read_config_store_data(ASN_OCTET_STR, cptr,
                                           &StorageTmp->pdu_community,
                                           &StorageTmp->pdu_community_len);
                cptr =
                    read_config_store_data(ASN_OCTET_STR, cptr,
                                           &StorageTmp->pdu_securityName,
                                           &StorageTmp->
                                           pdu_securityNameLen);
            }


            snmpd_store_config(line);
        }
    }
    DEBUGMSGTL(("expExpressionTable", "storage done.\n"));
    return SNMPERR_SUCCESS;
}




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

    DEBUGMSGTL(("expExpressionTable",
                "var_expExpressionTable: Entering...  \n"));

    /*
     * this assumes you have registered all your data properly
     */
    if ((StorageTmp =
         header_complex(expExpressionTableStorage, vp, name, length, exact,
                        var_len, write_method)) == NULL) {
        if (vp->magic == EXPEXPRESSIONENTRYSTATUS)
            *write_method = write_expExpressionEntryStatus;
        return NULL;
    }


    switch (vp->magic) {


    case EXPEXPRESSION:
        *write_method = write_expExpression;
        *var_len = StorageTmp->expExpressionLen;
        return (u_char *) StorageTmp->expExpression;

    case EXPEXPRESSIONVALUETYPE:
        *write_method = write_expExpressionValueType;
        *var_len = sizeof(StorageTmp->expExpressionValueType);
        return (u_char *) & StorageTmp->expExpressionValueType;

    case EXPEXPRESSIONCOMMENT:
        *write_method = write_expExpressionComment;
        *var_len = StorageTmp->expExpressionCommentLen;
        return (u_char *) StorageTmp->expExpressionComment;

    case EXPEXPRESSIONDELTALNTERVAL:
        *write_method = write_expExpressionDeltaInterval;
        *var_len = sizeof(StorageTmp->expExpressionDeltaInterval);
        return (u_char *) & StorageTmp->expExpressionDeltaInterval;

    case EXPEXPRESSIONPREFIX:
        *var_len = StorageTmp->expExpressionPrefixLen * sizeof(oid);
        return (u_char *) StorageTmp->expExpressionPrefix;

    case EXPEXPRESSIONERRORS:
        *var_len = sizeof(StorageTmp->expExpressionErrors);
        return (u_char *) & StorageTmp->expExpressionErrors;

    case EXPEXPRESSIONENTRYSTATUS:
        *write_method = write_expExpressionEntryStatus;
        *var_len = sizeof(StorageTmp->expExpressionEntryStatus);
        return (u_char *) & StorageTmp->expExpressionEntryStatus;

    default:
        ERROR_MSG("");

    }
    return NULL;
}



int
write_expExpression(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 expExpressionTable_data *StorageTmp = NULL;
    static size_t   tmplen;
    size_t          newlen =
        name_len -
        (sizeof(expExpressionTable_variables_oid) / sizeof(oid) + 3 - 1);


    DEBUGMSGTL(("expExpressionTable",
                "write_expExpression entering action=%d...  \n", action));
    if ((StorageTmp =
         header_complex(expExpressionTableStorage, NULL,
                        &name[sizeof(expExpressionTable_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 expExpression 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->expExpression;
        tmplen = StorageTmp->expExpressionLen;
        memdup((u_char **) & StorageTmp->expExpression, var_val,
               var_val_len);
        StorageTmp->expExpressionLen = var_val_len;
        break;


    case UNDO:
        /*
         * Back out any changes made in the ACTION case 
         */
        SNMP_FREE(StorageTmp->expExpression);
        StorageTmp->expExpression = tmpvar;
        StorageTmp->expExpressionLen = 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_expExpressionValueType(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 expExpressionTable_data *StorageTmp = NULL;
    size_t          newlen =
        name_len -
        (sizeof(expExpressionTable_variables_oid) / sizeof(oid) + 3 - 1);


    DEBUGMSGTL(("expExpressionTable",
                "write_expExpressionValueType entering action=%d...  \n",
                action));
    if ((StorageTmp =
         header_complex(expExpressionTableStorage, NULL,
                        &name[sizeof(expExpressionTable_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 expExpressionValueType 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 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->expExpressionValueType;
        StorageTmp->expExpressionValueType = *((long *) var_val);
        break;


    case UNDO:
        /*
         * Back out any changes made in the ACTION case 
         */
        StorageTmp->expExpressionValueType = tmpvar;
        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! 
         */
        break;
    }
    return SNMP_ERR_NOERROR;

}


int
write_expExpressionComment(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 expExpressionTable_data *StorageTmp = NULL;
    static size_t   tmplen;
    size_t          newlen =
        name_len -
        (sizeof(expExpressionTable_variables_oid) / sizeof(oid) + 3 - 1);


    DEBUGMSGTL(("expExpressionTable",
                "write_expExpression entering action=%d...  \n", action));
    if ((StorageTmp =
         header_complex(expExpressionTableStorage, NULL,
                        &name[sizeof(expExpressionTable_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 expExpressionComment 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->expExpressionComment;
        tmplen = StorageTmp->expExpressionCommentLen;
        memdup((u_char **) & StorageTmp->expExpressionComment, var_val,
               var_val_len);
        StorageTmp->expExpressionCommentLen = var_val_len;
        break;


    case UNDO:
        /*
         * Back out any changes made in the ACTION case 
         */
        SNMP_FREE(StorageTmp->expExpressionComment);
        StorageTmp->expExpressionComment = tmpvar;
        StorageTmp->expExpressionCommentLen = 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_expExpressionDeltaInterval(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 expExpressionTable_data *StorageTmp = NULL;
    size_t          newlen =
        name_len -
        (sizeof(expExpressionTable_variables_oid) / sizeof(oid) + 3 - 1);


    DEBUGMSGTL(("expExpressionTable",
                "write_expExpressionValueType entering action=%d...  \n",
                action));
    if ((StorageTmp =