Re: Semodule libsepol.permission_copy_callback permission not satisfied

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On 9 Nov 2015, at 8:01 pm, RIJKEN Jeroen <jeroen.rijken@xxxxxxxxxxxxxxxxxx> wrote:

Dear all,
 
Let me begin by saying the SELinux installation I currently use is non-standard. The platform I work on officially only supports seedit for creating policies, however I simply prefer writing them by hand. Also, I don’t have a GUI. I downloaded the RPM selinux-policy and installed it, providing the necessary files in /usr/share/selinux/devel for compiling the policies. The compilation of policies works, installing them with semodule doesn’t. The following error is produced:
 
[CODE]
root@_________:/root/thales_logging> make -f /usr/share/selinux/devel/Makefile thales_logging.pp
Compiling wr-standard thales_logging module
/usr/bin/checkmodule:  loading policy configuration from tmp/thales_logging.tmp
/usr/bin/checkmodule:  policy configuration loaded
/usr/bin/checkmodule:  writing binary representation (version 10) to tmp/thales_logging.mod
Creating wr-standard thales_logging.pp policy package
rm tmp/thales_logging.mod tmp/thales_logging.mod.fc
root@_________:/root/thales_logging> semodule -i thales_logging.pp
libsepol.permission_copy_callback: Module thales_logging depends on permission audit_access in class dir, not satisfied (No such file or directory).
libsemanage.semanage_link_sandbox: Link packages failed (No such file or directory).
semodule:  Failed!
[/CODE]
 
What does this error mean?

A while back I compiled a policy on a RHEL 6.7 machine then copied it to a RHEL 6.6 machine, but it failed to load and I believe it was the same error. I think the audit_access permission was added in RHEL 6.7 (but I could be wrong). In a similar way, it looks like your machine is running a base policy older than that provided by the selinux-policy rpm you installed and so it can’t load a policy because it doesn’t know what the new audit_allow permission is.

 
 
The system is running Wind River Linux. I have to write the log files to a file under /opt (non-ramdisk), which is labeled with usr_t. The directories inside /opt have the proper labeles. Below the .te file:
 
[CODE]
policy_module(thales_logging, 0.1)
 
########################################
#
# Declarations
#
 
gen_require(`
                type usr_t;
                type auditctl_t;
                type syslogd_t;
               
                type var_log_t;
                type audit_log_t;
 
                type syslogd_initrc_exec_t;
')
 
########################################
#
# thales_logging local policy
#
 
allow auditctl_t usr_t:dir { getattr ioctl read search };
allow auditctl_t usr_t:lnk_file { getattr ioctl read };
#allow syslogd_t usr_t:dir { getattr ioctl read search };
[/CODE]
 
The .fc file:
 
[CODE]
/etc/init.d/syslog-ng      --                             gen_context(system_u:object_r:syslogd_initrc_exec_t,s0)
/opt/platform_log(/.*)?                               gen_context(system_u:object_r:var_log_t,s0)
/opt/platform_log/audit(/.*)?                   gen_context(system_u:object_r:audit_log_t,s0)
[/CODE]
 
No .if is present, the one generated when compiling is empty.
 
 
Thanks in advance,
Jeroen
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