53 lines
1.6 KiB
Plaintext
53 lines
1.6 KiB
Plaintext
#DESC Utempter - Privileged helper for utmp/wtmp updates
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#
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# Authors: Stephen Smalley <sds@epoch.ncsc.mil> and Timothy Fraser
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# X-Debian-Packages:
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#
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#################################
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#
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# Rules for the utempter_t domain.
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#
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# This is the domain for the utempter program. utempter is
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# executed by xterm to update utmp and wtmp.
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# utempter_exec_t is the type of the utempter binary.
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#
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type utempter_t, domain, nscd_client_domain;
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in_user_role(utempter_t)
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role sysadm_r types utempter_t;
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uses_shlib(utempter_t)
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type utempter_exec_t, file_type, sysadmfile, exec_type;
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domain_auto_trans(userdomain, utempter_exec_t, utempter_t)
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# Use capabilities.
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allow utempter_t self:capability setgid;
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allow utempter_t etc_t:file { getattr read };
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# Update /var/run/utmp and /var/log/wtmp.
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allow utempter_t initrc_var_run_t:file rw_file_perms;
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allow utempter_t var_log_t:dir search;
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allow utempter_t wtmp_t:file rw_file_perms;
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# dontaudit access to /dev/ptmx.
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dontaudit utempter_t ptmx_t:chr_file rw_file_perms;
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dontaudit utempter_t sysadm_devpts_t:chr_file { read write };
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# Allow utemper to write to /tmp/.xses-*
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allow utempter_t user_tmpfile:file { getattr write append };
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# Inherit and use descriptors from login.
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allow utempter_t privfd:fd use;
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ifdef(`xdm.te', `
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allow utempter_t xdm_t:fd use;
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allow utempter_t xdm_t:fifo_file { write getattr };
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')
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allow utempter_t self:unix_stream_socket create_stream_socket_perms;
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# Access terminals.
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allow utempter_t ttyfile:chr_file getattr;
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allow utempter_t ptyfile:chr_file getattr;
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allow utempter_t devpts_t:dir search;
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dontaudit utempter_t {ttyfile ptyfile}:chr_file { read write };
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