86 lines
2.6 KiB
Plaintext
86 lines
2.6 KiB
Plaintext
#
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# Macros for gnome-pty-helper domains.
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#
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#
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# Authors: Stephen Smalley <sds@epoch.ncsc.mil> and Timothy Fraser
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#
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#
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# gph_domain(domain_prefix, role_prefix)
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#
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# Define a derived domain for the gnome-pty-helper program when
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# executed by a user domain.
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#
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# The type declaration for the executable type for this program is
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# provided separately in domains/program/gnome-pty-helper.te.
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#
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# The *_gph_t domains are for the gnome_pty_helper program.
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# This program is executed by gnome-terminal to handle
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# updates to utmp and wtmp. In this regard, it is similar
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# to utempter. However, unlike utempter, gnome-pty-helper
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# also creates the pty file for the terminal program.
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# There is one *_gph_t domain for each user domain.
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#
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undefine(`gph_domain')
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define(`gph_domain',`
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# Derived domain based on the calling user domain and the program.
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type $1_gph_t, domain, gphdomain, nscd_client_domain;
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# Transition from the user domain to the derived domain.
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domain_auto_trans($1_t, gph_exec_t, $1_gph_t)
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# The user role is authorized for this domain.
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role $2_r types $1_gph_t;
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# This domain is granted permissions common to most domains.
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uses_shlib($1_gph_t)
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# Use capabilities.
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allow $1_gph_t self:capability { chown fsetid setgid setuid };
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# Update /var/run/utmp and /var/log/wtmp.
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allow $1_gph_t { var_t var_run_t }:dir search;
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allow $1_gph_t initrc_var_run_t:file rw_file_perms;
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allow $1_gph_t wtmp_t:file rw_file_perms;
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# Allow gph to rw to stream sockets of appropriate user type.
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# (Need this so gnome-pty-helper can pass pty fd to parent
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# gnome-terminal which is running in a user domain.)
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allow $1_gph_t $1_t:unix_stream_socket rw_stream_socket_perms;
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allow $1_gph_t self:unix_stream_socket create_stream_socket_perms;
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# Allow user domain to use pty fd from gnome-pty-helper.
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allow $1_t $1_gph_t:fd use;
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# Use the network, e.g. for NIS lookups.
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can_resolve($1_gph_t)
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can_ypbind($1_gph_t)
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allow $1_gph_t etc_t:file { getattr read };
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# Added by David A. Wheeler:
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# Allow gnome-pty-helper to update /var/log/lastlog
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# (the gnome-pty-helper in Red Hat Linux 7.1 does this):
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allow $1_gph_t lastlog_t:file rw_file_perms;
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allow $1_gph_t var_log_t:dir search;
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allow $1_t $1_gph_t:process signal;
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ifelse($2, `system', `
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# Create ptys for the system
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can_create_other_pty($1_gph, initrc)
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', `
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# Create ptys for the user domain.
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can_create_other_pty($1_gph, $1)
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# Read and write the users tty.
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allow $1_gph_t $1_tty_device_t:chr_file rw_file_perms;
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# Allow gnome-pty-helper to write the .xsession-errors file.
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allow $1_gph_t home_root_t:dir search;
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allow $1_gph_t $1_home_t:dir { search add_name };
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allow $1_gph_t $1_home_t:file { create write };
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')dnl end ifelse system
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')dnl end macro
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