ssh updates for targeted
This commit is contained in:
Chris PeBenito
parent
cbdb4ae6d3
commit
375c241556
@ -4,6 +4,11 @@
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# file should be used.
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# file should be used.
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#
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#
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########################################
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#
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# Common tunables
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#
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## Allow making anonymous memory executable, e.g.
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## Allow making anonymous memory executable, e.g.
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## for runtime-code generation or executable stack.
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## for runtime-code generation or executable stack.
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gen_tunable(allow_execmem,false)
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gen_tunable(allow_execmem,false)
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@ -107,10 +112,6 @@ gen_tunable(squid_connect_any,false)
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## Allow ssh logins as sysadm_r:sysadm_t
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## Allow ssh logins as sysadm_r:sysadm_t
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gen_tunable(ssh_sysadm_login,false)
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gen_tunable(ssh_sysadm_login,false)
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## Allow staff_r users to search the sysadm home
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## dir and read files (such as ~/.bashrc)
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gen_tunable(staff_read_sysadm_file,false)
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## Configure stunnel to be a standalone daemon or
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## Configure stunnel to be a standalone daemon or
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## inetd service.
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## inetd service.
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gen_tunable(stunnel_is_daemon,false)
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gen_tunable(stunnel_is_daemon,false)
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@ -154,6 +155,10 @@ gen_tunable(read_untrusted_content,false)
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## Allow user spamassassin clients to use the network.
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## Allow user spamassassin clients to use the network.
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gen_tunable(spamassassin_can_network,false)
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gen_tunable(spamassassin_can_network,false)
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## Allow staff_r users to search the sysadm home
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## dir and read files (such as ~/.bashrc)
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gen_tunable(staff_read_sysadm_file,false)
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## Allow regular users direct mouse access
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## Allow regular users direct mouse access
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gen_tunable(user_direct_mouse,false)
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gen_tunable(user_direct_mouse,false)
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@ -164,7 +169,8 @@ gen_tunable(user_dmesg,false)
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## (also needs USERCTL=true)
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## (also needs USERCTL=true)
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gen_tunable(user_net_control,false)
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gen_tunable(user_net_control,false)
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## Allow user to r/w noextattrfile (FAT, CDROM, FLOPPY)
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## Allow user to r/w files on filesystems
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## that do not have extended attributes (FAT, CDROM, FLOPPY)
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gen_tunable(user_rw_noexattrfile,false)
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gen_tunable(user_rw_noexattrfile,false)
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## Allow users to rw usb devices
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## Allow users to rw usb devices
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@ -8,18 +8,12 @@ policy_module(ssh,1.0)
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attribute ssh_server;
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attribute ssh_server;
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# Type for the ssh-agent executable.
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type ssh_agent_exec_t;
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files_type(ssh_agent_exec_t)
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# ssh client executable.
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# ssh client executable.
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type ssh_exec_t;
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type ssh_exec_t;
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files_type(ssh_exec_t)
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files_type(ssh_exec_t)
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type ssh_keygen_t;
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type ssh_keygen_exec_t;
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type ssh_keygen_exec_t;
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init_system_domain(ssh_keygen_t,ssh_keygen_exec_t)
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files_type(ssh_keygen_exec_t)
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role system_r types ssh_keygen_t;
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type ssh_keysign_exec_t;
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type ssh_keysign_exec_t;
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files_type(ssh_keysign_exec_t)
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files_type(ssh_keysign_exec_t)
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@ -31,27 +25,40 @@ gen_require(`
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')
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')
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files_type(sshd_exec_t)
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files_type(sshd_exec_t)
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ssh_server_template(sshd)
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ssh_server_template(sshd_extern)
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# cjp: commenting this out until typeattribute works in a conditional
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#optional_policy(`inetd.te',`
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# tunable_policy(`run_ssh_inetd',`
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# inetd_tcp_service_domain(sshd_t,sshd_exec_t)
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# ',`
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# init_daemon_domain(sshd_t,sshd_exec_t)
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# ')
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#',`
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# These rules should match the else block
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# of the run_ssh_inetd tunable directly above
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init_daemon_domain(sshd_t,sshd_exec_t)
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#')
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type sshd_key_t;
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type sshd_key_t;
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files_type(sshd_key_t)
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files_type(sshd_key_t)
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type sshd_tmp_t;
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ifdef(`targeted_policy',`
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files_tmp_file(sshd_tmp_t)
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unconfined_alias_domain(sshd_t)
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init_system_domain(sshd_t,sshd_exec_t)
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',`
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# Type for the ssh-agent executable.
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type ssh_agent_exec_t;
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files_type(ssh_agent_exec_t)
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type ssh_keygen_t;
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init_system_domain(ssh_keygen_t,ssh_keygen_exec_t)
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role system_r types ssh_keygen_t;
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ssh_server_template(sshd)
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ssh_server_template(sshd_extern)
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# cjp: commenting this out until typeattribute works in a conditional
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# optional_policy(`inetd.te',`
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# tunable_policy(`run_ssh_inetd',`
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# inetd_tcp_service_domain(sshd_t,sshd_exec_t)
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# ',`
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# init_daemon_domain(sshd_t,sshd_exec_t)
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# ')
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# ',`
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# These rules should match the else block
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# of the run_ssh_inetd tunable directly above
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init_daemon_domain(sshd_t,sshd_exec_t)
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# ')
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type sshd_tmp_t;
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files_tmp_file(sshd_tmp_t)
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')
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#################################
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#################################
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#
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#
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@ -60,67 +67,69 @@ files_tmp_file(sshd_tmp_t)
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# sshd_t is the domain for the sshd program.
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# sshd_t is the domain for the sshd program.
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#
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#
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# so a tunnel can point to another ssh tunnel
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ifdef(`targeted_policy',`',`
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allow sshd_t self:tcp_socket { acceptfrom connectto recvfrom };
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# so a tunnel can point to another ssh tunnel
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allow sshd_t self:tcp_socket { acceptfrom connectto recvfrom };
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allow sshd_t sshd_tmp_t:dir create_dir_perms;
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allow sshd_t sshd_tmp_t:dir create_dir_perms;
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allow sshd_t sshd_tmp_t:file create_file_perms;
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allow sshd_t sshd_tmp_t:file create_file_perms;
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allow sshd_t sshd_tmp_t:sock_file create_file_perms;
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allow sshd_t sshd_tmp_t:sock_file create_file_perms;
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files_create_tmp_files(sshd_t, sshd_tmp_t, { dir file sock_file })
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files_create_tmp_files(sshd_t, sshd_tmp_t, { dir file sock_file })
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# for X forwarding
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# for X forwarding
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corenet_tcp_bind_xserver_port(sshd_t)
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corenet_tcp_bind_xserver_port(sshd_t)
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auth_exec_pam(sshd_t)
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auth_exec_pam(sshd_t)
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seutil_read_config(sshd_t)
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seutil_read_config(sshd_t)
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ifdef(`targeted_policy',`
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ifdef(`targeted_policy',`
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unconfined_domain_template(sshd_t)
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unconfined_domain_template(sshd_t)
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')
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tunable_policy(`ssh_sysadm_login',`
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# Relabel and access ptys created by sshd
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# ioctl is necessary for logout() processing for utmp entry and for w to
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# display the tty.
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# some versions of sshd on the new SE Linux require setattr
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term_use_all_user_ptys(sshd_t)
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term_setattr_all_user_ptys(sshd_t)
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term_relabelto_all_user_ptys(sshd_t)
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userdom_spec_domtrans_all_users(sshd_t)
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userdom_signal_all_users(sshd_t)
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',`
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userdom_spec_domtrans_unpriv_users(sshd_t)
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userdom_signal_unpriv_users(sshd_t)
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')
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optional_policy(`rpm.te',`
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rpm_use_script_fd(sshd_t)
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')
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ifdef(`TODO',`
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tunable_policy(`ssh_sysadm_login',`
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# Relabel and access ptys created by sshd
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# ioctl is necessary for logout() processing for utmp entry and for w to
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# display the tty.
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# some versions of sshd on the new SE Linux require setattr
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allow sshd_t ptyfile:chr_file relabelto;
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optional_policy(`xauth.te',`
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domain_trans(sshd_t, xauth_exec_t, userdomain)
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')
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')
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',`
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optional_policy(`xauth.te',`
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tunable_policy(`ssh_sysadm_login',`
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domain_trans(sshd_t, xauth_exec_t, unpriv_userdomain)
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# Relabel and access ptys created by sshd
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# ioctl is necessary for logout() processing for utmp entry and for w to
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# display the tty.
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# some versions of sshd on the new SE Linux require setattr
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term_use_all_user_ptys(sshd_t)
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term_setattr_all_user_ptys(sshd_t)
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term_relabelto_all_user_ptys(sshd_t)
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userdom_spec_domtrans_all_users(sshd_t)
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userdom_signal_all_users(sshd_t)
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',`
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userdom_spec_domtrans_unpriv_users(sshd_t)
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userdom_signal_unpriv_users(sshd_t)
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')
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')
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# Relabel and access ptys created by sshd
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# ioctl is necessary for logout() processing for utmp entry and for w to
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optional_policy(`rpm.te',`
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# display the tty.
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rpm_use_script_fd(sshd_t)
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# some versions of sshd on the new SE Linux require setattr
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')
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allow sshd_t userpty_type:chr_file { relabelto read write getattr ioctl setattr };
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ifdef(`TODO',`
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tunable_policy(`ssh_sysadm_login',`
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# Relabel and access ptys created by sshd
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# ioctl is necessary for logout() processing for utmp entry and for w to
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# display the tty.
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# some versions of sshd on the new SE Linux require setattr
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allow sshd_t ptyfile:chr_file relabelto;
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optional_policy(`xauth.te',`
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domain_trans(sshd_t, xauth_exec_t, userdomain)
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')
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',`
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optional_policy(`xauth.te',`
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domain_trans(sshd_t, xauth_exec_t, unpriv_userdomain)
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')
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# Relabel and access ptys created by sshd
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# ioctl is necessary for logout() processing for utmp entry and for w to
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# display the tty.
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# some versions of sshd on the new SE Linux require setattr
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allow sshd_t userpty_type:chr_file { relabelto read write getattr ioctl setattr };
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')
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') dnl endif TODO
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')
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')
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') dnl endif TODO
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#################################
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#################################
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#
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#
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@ -129,115 +138,119 @@ tunable_policy(`ssh_sysadm_login',`
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# sshd_extern_t is the domain for ssh from outside our network
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# sshd_extern_t is the domain for ssh from outside our network
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#
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#
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ifdef(`TODO',`
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ifdef(`targeted_policy',`',`
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domain_trans(sshd_extern_t, shell_exec_t, user_mini_domain)
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ifdef(`TODO',`
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# Signal the user domains.
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domain_trans(sshd_extern_t, shell_exec_t, user_mini_domain)
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allow sshd_extern_t user_mini_domain:process signal;
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# Signal the user domains.
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allow sshd_extern_t user_mini_domain:process signal;
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ifdef(`xauth.te', `
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ifdef(`xauth.te', `
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domain_trans(sshd_extern_t, xauth_exec_t, user_mini_domain)
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domain_trans(sshd_extern_t, xauth_exec_t, user_mini_domain)
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')
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')
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# Relabel and access ptys created by sshd
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# Relabel and access ptys created by sshd
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# ioctl is necessary for logout() processing for utmp entry and for w to
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# ioctl is necessary for logout() processing for utmp entry and for w to
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# display the tty.
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# display the tty.
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# some versions of sshd on the new SE Linux require setattr
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# some versions of sshd on the new SE Linux require setattr
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allow sshd_extern_t user_mini_domain:chr_file { relabelto read write getattr ioctl setattr };
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allow sshd_extern_t user_mini_domain:chr_file { relabelto read write getattr ioctl setattr };
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# inheriting stream sockets is needed for "ssh host command" as no pty
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# inheriting stream sockets is needed for "ssh host command" as no pty
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# is allocated
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# is allocated
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allow user_mini_domain sshd_extern_t:unix_stream_socket rw_stream_socket_perms;
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allow user_mini_domain sshd_extern_t:unix_stream_socket rw_stream_socket_perms;
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optional_policy(`inetd.te',`
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optional_policy(`inetd.te',`
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tunable_policy(`run_ssh_inetd',`
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tunable_policy(`run_ssh_inetd',`
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domain_trans(inetd_t, sshd_exec_t, sshd_extern_t)
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domain_trans(inetd_t, sshd_exec_t, sshd_extern_t)
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',`
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domain_trans(initrc_t, sshd_exec_t, sshd_extern_t)
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')
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',`
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',`
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# These rules should match the else block
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# of the run_ssh_inetd tunable directly above
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domain_trans(initrc_t, sshd_exec_t, sshd_extern_t)
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domain_trans(initrc_t, sshd_exec_t, sshd_extern_t)
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')
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')
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',`
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# These rules should match the else block
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# of the run_ssh_inetd tunable directly above
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domain_trans(initrc_t, sshd_exec_t, sshd_extern_t)
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')
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ifdef(`direct_sysadm_daemon', `
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ifdef(`direct_sysadm_daemon', `
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# Direct execution by sysadm_r.
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# Direct execution by sysadm_r.
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domain_auto_trans(sysadm_t, sshd_exec_t, sshd_t)
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domain_auto_trans(sysadm_t, sshd_exec_t, sshd_t)
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role_transition sysadm_r sshd_exec_t system_r;
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role_transition sysadm_r sshd_exec_t system_r;
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')
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')
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# for port forwarding
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# for port forwarding
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allow userdomain sshd_t:tcp_socket { connectto recvfrom };
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allow userdomain sshd_t:tcp_socket { connectto recvfrom };
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allow sshd_t userdomain:tcp_socket { acceptfrom recvfrom };
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allow sshd_t userdomain:tcp_socket { acceptfrom recvfrom };
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allow userdomain kernel_t:tcp_socket recvfrom;
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allow userdomain kernel_t:tcp_socket recvfrom;
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allow sshd_t kernel_t:tcp_socket recvfrom;
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allow sshd_t kernel_t:tcp_socket recvfrom;
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') dnl endif TODO
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') dnl endif TODO
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')
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########################################
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########################################
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#
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#
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# ssh_keygen local policy
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# ssh_keygen local policy
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#
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#
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# ssh_keygen_t is the type of the ssh-keygen program when run at install time
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ifdef(`targeted_policy',`',`
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# and by sysadm_t
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# ssh_keygen_t is the type of the ssh-keygen program when run at install time
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# and by sysadm_t
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dontaudit ssh_keygen_t self:capability sys_tty_config;
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dontaudit ssh_keygen_t self:capability sys_tty_config;
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allow ssh_keygen_t self:process { sigchld sigkill sigstop signull signal };
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allow ssh_keygen_t self:process { sigchld sigkill sigstop signull signal };
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allow ssh_keygen_t self:unix_stream_socket create_stream_socket_perms;
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allow ssh_keygen_t self:unix_stream_socket create_stream_socket_perms;
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allow ssh_keygen_t sshd_key_t:file create_file_perms;
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allow ssh_keygen_t sshd_key_t:file create_file_perms;
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files_create_etc_config(ssh_keygen_t,sshd_key_t,file)
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files_create_etc_config(ssh_keygen_t,sshd_key_t,file)
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kernel_read_kernel_sysctl(ssh_keygen_t)
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kernel_read_kernel_sysctl(ssh_keygen_t)
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fs_search_auto_mountpoints(ssh_keygen_t)
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fs_search_auto_mountpoints(ssh_keygen_t)
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dev_read_sysfs(ssh_keygen_t)
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dev_read_sysfs(ssh_keygen_t)
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dev_read_urand(ssh_keygen_t)
|
dev_read_urand(ssh_keygen_t)
|
||||||
|
|
||||||
term_dontaudit_use_console(ssh_keygen_t)
|
term_dontaudit_use_console(ssh_keygen_t)
|
||||||
|
|
||||||
domain_use_wide_inherit_fd(ssh_keygen_t)
|
domain_use_wide_inherit_fd(ssh_keygen_t)
|
||||||
|
|
||||||
files_read_etc_files(ssh_keygen_t)
|
files_read_etc_files(ssh_keygen_t)
|
||||||
|
|
||||||
init_use_fd(ssh_keygen_t)
|
init_use_fd(ssh_keygen_t)
|
||||||
init_use_script_pty(ssh_keygen_t)
|
init_use_script_pty(ssh_keygen_t)
|
||||||
|
|
||||||
libs_use_ld_so(ssh_keygen_t)
|
libs_use_ld_so(ssh_keygen_t)
|
||||||
libs_use_shared_libs(ssh_keygen_t)
|
libs_use_shared_libs(ssh_keygen_t)
|
||||||
|
|
||||||
logging_send_syslog_msg(ssh_keygen_t)
|
logging_send_syslog_msg(ssh_keygen_t)
|
||||||
|
|
||||||
allow ssh_keygen_t proc_t:dir r_dir_perms;
|
allow ssh_keygen_t proc_t:dir r_dir_perms;
|
||||||
allow ssh_keygen_t proc_t:lnk_file read;
|
allow ssh_keygen_t proc_t:lnk_file read;
|
||||||
|
|
||||||
userdom_use_sysadm_tty(ssh_keygen_t)
|
userdom_use_sysadm_tty(ssh_keygen_t)
|
||||||
userdom_dontaudit_use_unpriv_user_fd(ssh_keygen_t)
|
userdom_dontaudit_use_unpriv_user_fd(ssh_keygen_t)
|
||||||
|
|
||||||
# cjp: with the old daemon_(base_)domain being broken up into
|
# cjp: with the old daemon_(base_)domain being broken up into
|
||||||
# a daemon and system interface, this probably is not needed:
|
# a daemon and system interface, this probably is not needed:
|
||||||
ifdef(`direct_sysadm_daemon',`
|
ifdef(`direct_sysadm_daemon',`
|
||||||
userdom_dontaudit_use_sysadm_terms(ssh_keygen_t)
|
userdom_dontaudit_use_sysadm_terms(ssh_keygen_t)
|
||||||
')
|
')
|
||||||
|
|
||||||
ifdef(`targeted_policy', `
|
ifdef(`targeted_policy', `
|
||||||
term_dontaudit_use_unallocated_tty(ssh_keygen_t)
|
term_dontaudit_use_unallocated_tty(ssh_keygen_t)
|
||||||
term_dontaudit_use_generic_pty(ssh_keygen_t)
|
term_dontaudit_use_generic_pty(ssh_keygen_t)
|
||||||
files_dontaudit_read_root_file(ssh_keygen_t)
|
files_dontaudit_read_root_file(ssh_keygen_t)
|
||||||
')
|
')
|
||||||
|
|
||||||
optional_policy(`selinuxutil.te',`
|
optional_policy(`selinuxutil.te',`
|
||||||
seutil_sigchld_newrole(ssh_keygen_t)
|
seutil_sigchld_newrole(ssh_keygen_t)
|
||||||
')
|
')
|
||||||
|
|
||||||
optional_policy(`udev.te', `
|
optional_policy(`udev.te', `
|
||||||
udev_read_db(ssh_keygen_t)
|
udev_read_db(ssh_keygen_t)
|
||||||
')
|
')
|
||||||
|
|
||||||
ifdef(`TODO',`
|
ifdef(`TODO',`
|
||||||
optional_policy(`rhgb.te', `
|
optional_policy(`rhgb.te', `
|
||||||
rhgb_domain(ssh_keygen_t)
|
rhgb_domain(ssh_keygen_t)
|
||||||
')
|
')
|
||||||
|
')
|
||||||
')
|
')
|
||||||
|
|||||||
@ -6,12 +6,11 @@ policy_module(xdm,1.0)
|
|||||||
# Declarations
|
# Declarations
|
||||||
#
|
#
|
||||||
|
|
||||||
# hack until all of strict is converted
|
ifdef(`targeted_policy',`
|
||||||
#type xdm_t;
|
unconfined_alias_domain(xdm_t)
|
||||||
gen_require(`
|
',`
|
||||||
type unconfined_t;
|
type xdm_t;
|
||||||
')
|
')
|
||||||
typealias unconfined_t alias xdm_t;
|
|
||||||
|
|
||||||
# real declaration moved to mls until
|
# real declaration moved to mls until
|
||||||
# range_transition works in loadable modules
|
# range_transition works in loadable modules
|
||||||
|
|||||||
@ -261,3 +261,28 @@ interface(`unconfined_role',`
|
|||||||
|
|
||||||
role $1 types unconfined_t;
|
role $1 types unconfined_t;
|
||||||
')
|
')
|
||||||
|
|
||||||
|
########################################
|
||||||
|
## <summary>
|
||||||
|
## Add an alias type to the unconfined domain.
|
||||||
|
## </summary>
|
||||||
|
## <desc>
|
||||||
|
## <p>
|
||||||
|
## Add an alias type to the unconfined domain.
|
||||||
|
## </p>
|
||||||
|
## <p>
|
||||||
|
## This is added to support targeted policy. Its
|
||||||
|
## use should be very limited.
|
||||||
|
## </p>
|
||||||
|
## </desc>
|
||||||
|
## <param name="domain">
|
||||||
|
## New alias of the unconfined domain.
|
||||||
|
## </param>
|
||||||
|
#
|
||||||
|
interface(`unconfined_alias_domain',`
|
||||||
|
gen_require(`
|
||||||
|
type unconfined_t;
|
||||||
|
')
|
||||||
|
|
||||||
|
typealias unconfined_t alias $1;
|
||||||
|
')
|
||||||
|
|||||||
Loading…
Reference in New Issue
Block a user