On Fri, 2006-05-26 at 14:18 -0400, Daniel J Walsh wrote:
Paul Howarth wrote:
> I made something similar for my moin wiki running under mod_fcgid:
>
> te file:
>
> policy_module(apache, 0.2.1)
>
> require {
> type devpts_t;
> type httpd_t;
> type httpd_log_t;
> type httpd_sys_script_exec_t;
> type var_run_t;
> };
>
> # ==========================================================
> # Create and use httpd_fastcgi_script_t for mod_fcgid apps
> # ==========================================================
>
> apache_content_template(fastcgi)
> kernel_read_kernel_sysctls(httpd_fastcgi_script_t)
>
> # Allow FastCGI applications to live alongside regular CGI apps
> allow httpd_fastcgi_script_t httpd_sys_script_exec_t:dir {
> search_dir_perms };
>
> # Allow FastCGI applications to listen for FastCGI requests on their
> # sockets and respond to them
> allow httpd_fastcgi_script_t httpd_t:unix_stream_socket {
> rw_stream_socket_perms };
>
> # FastCGI application doing something to the httpd error log
> dontaudit httpd_fastcgi_script_t httpd_log_t:file ioctl;
>
> # Not sure what this is doing (happens when fastcgi scripts start)
> dontaudit httpd_t devpts_t:chr_file ioctl;
>
> # mod_fcgid setting attr of its socket dir
> allow httpd_t var_run_t:dir setattr;
Why not create a context for its socket dir so you don't need this for
var_run?
The obvious type to use would really be httpd_var_run_t rather than
creating a new type (comparing with other users of /var/run). In fact I
think I tried that but it seemed worse than leaving it the default
var_run_t and adding the one allow rule. What would you suggest?
> fc file:
>
> /srv/www/tips/cgi-bin/moin.fcgi --
> gen_context(system_u:object_r:httpd_fastcgi_script_exec_t,s0)
> /var/www/tips/cgi-bin/moin.fcgi --
> gen_context(system_u:object_r:httpd_fastcgi_script_exec_t,s0)
>
> Paul.
I think it might be a good idea to add this (fastcgi that is) policy to
base. Have you tried to submit it upstream?
Not yet; it probably needs more work to add further capabilities, as
I've only use one application with FastCGI myself, and I can see that
httpd_sys_script_t has far more capabilities that I've so far allowed to
httpd_fastcgi_script_t. Perhaps there should be a interface that goes
further than apache_content_template and adds capabilities needed by
most server-side scripts (e.g. the kernel_read_kernel_sysctls from
above), for use in developing custom types like httpd_fastcgi_script_t?
Paul.