odoo/addons/stock/security/stock_security.xml

<?xml version="1.0" encoding="utf-8"?>
<openerp>
<data noupdate="0">

    <record id="group_stock_manager" model="res.groups">
        <field name="name">Stock / Manager</field>
    </record>
    <record id="group_stock_user" model="res.groups">
        <field name="name">Stock / Worker</field>
    </record>

    <record model='ir.ui.menu' id='menu_stock_root'>
        <field name="groups_id" eval="[(6,0,[ref('group_stock_manager'),ref('group_stock_user')])]"/>
    </record>

    <record model='ir.ui.menu' id='menu_stock_configuration'>
        <field name="groups_id" eval="[(6,0,[ref('group_stock_manager')])]"/>
    </record>

    <record model="ir.rule.group" id="stock_warehouse_comp_rule_group">
        <field name="name">Warehouse multi-company</field>
        <field name="model_id" ref="model_stock_warehouse"/>
        <field name="global" eval="True"/>
    </record>
    <record model="ir.rule" id="stock_warehouse_comp_rule">
        <field name="field_id" search="[('model','=','stock.warehouse'),('name','=','company_id')]" model="ir.model.fields"/>
        <field name="rule_group" ref="stock_warehouse_comp_rule_group"/>
        <field name="domain_force">['|',('company_id.child_ids','child_of',[user.company_id.id]),('company_id','child_of',[user.company_id.id])]</field>
    </record>


    <record model="ir.rule.group" id="stock_location_comp_rule_group">
        <field name="name">Location multi-company</field>
        <field name="model_id" ref="model_stock_location"/>
        <field name="global" eval="True"/>
    </record>
    <record model="ir.rule" id="stock_location_comp_rule">
        <field name="field_id" search="[('model','=','stock.location'),('name','=','company_id')]" model="ir.model.fields"/>
        <field name="rule_group" ref="stock_location_comp_rule_group"/>
        <field name="domain_force">['|',('company_id.child_ids','child_of',[user.company_id.id]),('company_id','child_of',[user.company_id.id])]</field>
    </record>


    <record model="ir.rule.group" id="stock_inventory_line_comp_rule_group">
        <field name="name">Inventory Line multi-company</field>
        <field name="model_id" ref="model_stock_inventory_line"/>
        <field name="global" eval="True"/>
    </record>
    <record model="ir.rule" id="stock_inventory_line_comp_rule">
        <field name="field_id" search="[('model','=','stock.inventory.line'),('name','=','company_id')]" model="ir.model.fields"/>
        <field name="rule_group" ref="stock_inventory_line_comp_rule_group"/>
        <field name="domain_force">['|',('company_id.child_ids','child_of',[user.company_id.id]),('company_id','child_of',[user.company_id.id])]</field>
    </record>

    <record model="ir.rule.group" id="stock_inventory_comp_rule_group">
        <field name="name">Inventory multi-company</field>
        <field name="model_id" ref="model_stock_inventory"/>
        <field name="global" eval="True"/>
    </record>
    <record model="ir.rule" id="stock_inventory_comp_rule">
        <field name="field_id" search="[('model','=','stock.inventory'),('name','=','company_id')]" model="ir.model.fields"/>
        <field name="rule_group" ref="stock_inventory_comp_rule_group"/>
        <field name="domain_force">['|',('company_id.child_ids','child_of',[user.company_id.id]),('company_id','child_of',[user.company_id.id])]</field>
    </record>
</data>
</openerp>