Setup Samba Access Rights

[Cosmin Curticapean]

Hello

for this directory structure under linux:

DEPARTMENTS - root directory located in: /usr/downloads/departments
    DEPT COMMERCIAL  - subdir of DEPARTMENTS located in:
/usr/downloads/departments/comm
    DEPT BOS   - subdir of DEPARTMENTS /usr/downloads/departments/bos
    DEPT PURHCASING - subdir of DEPARTMENTS located in
:/usr/downloads/departments/purch
...etc.

i have this configuration in samba:

....
[Departments]
        comment = Common data directory for each department
        path = /usr/downloads/departments
        browseable = yes
        writeable = yes
        read only = no
        create mask = 777
        directory mask = 777
...

so everyone is able to access a share folder Departments witch contains
every departments in the company, and everything contained is allowed
(read/write).

Is there a way to restrict the access to one of the subdirectories to
readonly? For example if i want to make the subdirectory "BOS" readonly but
to have it appear into the "Departments" section? not to setup another
section like this:

[Departments D - BOS]
        comment = Departments D - BOS
        path = /usr/downloads/departments/BOS
        browseable = yes
        writeable = yes
        hosts allow = 192.168.xxx.xxx 192.168.xxx.xxx
        create mask = 777
        directory mask = 777

(the rights are assigned to the ip address)!

Thankyou
Cosmin