114 lines
3.2 KiB
Plaintext
114 lines
3.2 KiB
Plaintext
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#
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# Macros for gpg and pgp
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#
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# Author: Russell Coker <russell@coker.com.au>
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#
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# based on the work of:
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# Stephen Smalley <sds@epoch.ncsc.mil> and Timothy Fraser
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#
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#
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# gpg_domain(domain_prefix)
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#
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# Define a derived domain for the gpg/pgp program when executed by
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# 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/gpg.te.
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#
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define(`gpg_domain', `
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# Derived domain based on the calling user domain and the program.
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type $1_gpg_t, domain, privlog;
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type $1_gpg_secret_t, file_type, $1_file_type, sysadmfile;
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# Transition from the user domain to the derived domain.
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domain_auto_trans($1_t, gpg_exec_t, $1_gpg_t)
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role $1_r types $1_gpg_t;
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can_network($1_gpg_t)
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allow $1_gpg_t port_type:tcp_socket name_connect;
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can_ypbind($1_gpg_t)
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# for a bug in kmail
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dontaudit $1_gpg_t $1_t:unix_stream_socket { getattr read write };
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allow $1_gpg_t device_t:dir r_dir_perms;
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allow $1_gpg_t { random_device_t urandom_device_t }:chr_file r_file_perms;
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allow $1_gpg_t etc_t:file r_file_perms;
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allow $1_gpg_t self:unix_stream_socket create_stream_socket_perms;
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allow $1_gpg_t self:tcp_socket create_stream_socket_perms;
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access_terminal($1_gpg_t, $1)
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ifdef(`gnome-pty-helper.te', `allow $1_gpg_t $1_gph_t:fd use;')
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# Inherit and use descriptors
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allow $1_gpg_t { privfd $1_t }:fd use;
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allow { $1_t $1_gpg_t } $1_gpg_t:process signal;
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# setrlimit is for ulimit -c 0
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allow $1_gpg_t self:process { setrlimit setcap setpgid };
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# allow ps to show gpg
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can_ps($1_t, $1_gpg_t)
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uses_shlib($1_gpg_t)
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# Access .gnupg
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rw_dir_create_file($1_gpg_t, $1_gpg_secret_t)
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# Read content to encrypt/decrypt/sign
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read_content($1_gpg_t, $1)
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# Write content to encrypt/decrypt/sign
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write_trusted($1_gpg_t, $1)
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allow $1_gpg_t self:capability { ipc_lock setuid };
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allow $1_gpg_t { etc_t usr_t }:dir r_dir_perms;
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allow $1_gpg_t fs_t:filesystem getattr;
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allow $1_gpg_t usr_t:file r_file_perms;
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read_locale($1_gpg_t)
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dontaudit $1_gpg_t var_t:dir search;
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ifdef(`gpg-agent.te', `gpg_agent_domain($1)')
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# for helper programs (which automatically fetch keys)
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# Note: this is only tested with the hkp interface. If you use eg the
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# mail interface you will likely need additional permissions.
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type $1_gpg_helper_t, domain;
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role $1_r types $1_gpg_helper_t;
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domain_auto_trans($1_gpg_t, gpg_helper_exec_t, $1_gpg_helper_t)
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uses_shlib($1_gpg_helper_t)
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# allow gpg to fork so it can call the helpers
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allow $1_gpg_t self:process { fork sigchld };
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allow $1_gpg_t self:fifo_file { getattr read write };
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dontaudit $1_gpg_helper_t $1_gpg_secret_t:file read;
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if (use_nfs_home_dirs) {
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dontaudit $1_gpg_helper_t nfs_t:file { read write };
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}
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if (use_samba_home_dirs) {
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dontaudit $1_gpg_helper_t cifs_t:file { read write };
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}
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# communicate with the user
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allow $1_gpg_helper_t $1_t:fd use;
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allow $1_gpg_helper_t $1_t:fifo_file write;
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# get keys from the network
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can_network_client($1_gpg_helper_t)
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allow $1_gpg_helper_t port_type:tcp_socket name_connect;
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allow $1_gpg_helper_t etc_t:file { getattr read };
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allow $1_gpg_helper_t urandom_device_t:chr_file read;
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allow $1_gpg_helper_t self:unix_stream_socket create_stream_socket_perms;
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# for nscd
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dontaudit $1_gpg_helper_t var_t:dir search;
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can_pipe_xdm($1_gpg_t)
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')dnl end gpg_domain definition
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