SSRS Role ID and TaskMask

Question

Hello,
I need to find out who has access to what on SSRS.  From the User table, I can query something like the following.   
Questions:
1) What is Role ID?  Is this a 1:1 map to a user?
2) What is TaskMask?  Is this a 1:1 map to a specific item (ie folder/report)?
3) How do I find out the mapping (ie the actual user name or folder/report name)?
RoleID
RoleName
Description
TaskMask
RoleFlags
30429381-0F4C-45E9-9136-AB4FE71CCD71
View Folder
View folder structure and reports available (incl report definition) but can't run reports
0000001000000000
0
DF7F6687-DF4E-4D2A-B1A8-B0917EA4E82C
Browser
May view folders, reports and subscribe to reports.
0010101001000100
0
DF7F6687-DF4E-4D2A-B1A8-B0917EA4E82C
Browser
May view folders, reports and subscribe to reports.
0010101001000100
0
30429381-0F4C-45E9-9136-AB4FE71CCD71
View Folder
View folder structure and reports available (incl report definition) but can't run reports
0000001000000000
0
DF7F6687-DF4E-4D2A-B1A8-B0917EA4E82C
Browser
May view folders, reports and subscribe to reports.
0010101001000100
0
DF7F6687-DF4E-4D2A-B1A8-B0917EA4E82C
Browser
May view folders, reports and subscribe to reports.

Answer 1

Roles can be a many-to-many relationship to Users through the PolicyUserRole table.
The TaskMask corresponds to the capabilities assigned to a role in the Role definition page in the Report Manager site settings.  These capabilities are assigned to a Role and then assigned to a User through their role membership for a catalog item
(i.e report or folder, etc.)
This query (for SSRS 2008 and R2) should get you started:
select
c.Name
, p.PolicyFlag
, r.RoleName
, r.TaskMask
, u.UserName
from
Catalog c inner join Policies p on c.PolicyID = p.PolicyID
inner join PolicyUserRole pur on p.PolicyID = pur.PolicyID
inner join Roles r on pur.RoleID = r.RoleID
inner join Users u on pur.UserID = u.UserID
[Please vote if helpful]
Paul Turley, MVP [Hitachi Consulting] SQLServerBIBlog.com