[selinux-policy: 424/3172] changes to make inetd work
Daniel J Walsh
dwalsh at fedoraproject.org
Thu Oct 7 19:41:24 UTC 2010
commit 80436b9b8f3c0f918250a6a17362317f0af6c283
Author: Chris PeBenito <cpebenito at tresys.com>
Date: Mon Jun 27 18:37:33 2005 +0000
changes to make inetd work
refpolicy/policy/modules/services/ssh.if | 49 +++++++++----------
refpolicy/policy/modules/services/ssh.te | 34 +++++--------
refpolicy/policy/modules/system/corecommands.if | 57 +++++++++++++++++++++--
refpolicy/policy/modules/system/files.if | 13 +++++
4 files changed, 101 insertions(+), 52 deletions(-)
---
diff --git a/refpolicy/policy/modules/services/ssh.if b/refpolicy/policy/modules/services/ssh.if
index 3a0a884..0369e9d 100644
--- a/refpolicy/policy/modules/services/ssh.if
+++ b/refpolicy/policy/modules/services/ssh.if
@@ -211,7 +211,7 @@ template(`ssh_per_userdomain_template',`
#allow ssh to access keys stored on removable media
# Should we have a boolean around this?
- allow $1_ssh_t mnt_t:dir search;
+ files_search_mnt($1_ssh_t)
r_dir_file($1_ssh_t, removable_t)
ifdef(`xdm.te', `
@@ -404,6 +404,10 @@ template(`sshd_program_domain', `
auth_rw_login_records($1_t)
auth_rw_lastlog($1_t)
+ corecmd_read_bin_symlink($1_t)
+ # for sshd subsystems, such as sftp-server.
+ corecmd_getattr_bin_file($1_t)
+
domain_wide_inherit_fd($1_t)
domain_subj_id_change_exempt($1_t)
domain_role_change_exempt($1_t)
@@ -436,43 +440,36 @@ template(`sshd_program_domain', `
fs_read_cifs_files($1_t)
')
+ optional_policy(`inetd.te',`
+ tunable_policy(`run_ssh_inetd',`
+ allow $1_t self:process signal;
+ files_list_pids($1_t)
+ ',`
+ corenet_tcp_bind_ssh_port($1_t)
+ init_use_fd($1_t)
+ init_use_script_pty($1_t)
+ ')
+ ',`
+ # These rules should match the else block
+ # of the run_ssh_inetd tunable directly above
+ corenet_tcp_bind_ssh_port($1_t)
+ init_use_fd($1_t)
+ init_use_script_pty($1_t)
+ ')
+
optional_policy(`mount.te', `
mount_send_nfs_client_request($1_t)
')
ifdef(`TODO',`
- allow $1_t bin_t:dir search;
- allow $1_t bin_t:lnk_file read;
-
- # for sshd subsystems, such as sftp-server.
- allow $1_t bin_t:file getattr;
-
# Read /var.
allow $1_t var_t:dir getattr;
- allow $1_t { home_root_t home_dir_type }:dir getattr;
+ allow $1_t home_dir_type:dir getattr;
dontaudit sshd_t userpty_type:chr_file relabelfrom;
- optional_policy(`inetd.te',`
- if (run_ssh_inetd) {
- allow $1_t self:process signal;
- allow $1_t inetd_t:tcp_socket rw_socket_perms;
- allow $1_t var_run_t:dir getattr;
- files_search_pids($1_t)
- } else {
- corenet_tcp_bind_ssh_port($1_t)
- init_use_fd($1_t)
- init_use_script_pty($1_t)
- }
- ',`
- # These rules should match the else block
- # of the run_ssh_inetd conditional directly above
- corenet_tcp_bind_ssh_port($1_t)
- init_use_fd($1_t)
- init_use_script_pty($1_t)
- ')
') dnl end TODO
')
diff --git a/refpolicy/policy/modules/services/ssh.te b/refpolicy/policy/modules/services/ssh.te
index 8e3a1e6..9b25e36 100644
--- a/refpolicy/policy/modules/services/ssh.te
+++ b/refpolicy/policy/modules/services/ssh.te
@@ -23,6 +23,19 @@ role system_r types ssh_keygen_t;
sshd_program_domain(sshd)
+optional_policy(`inetd.te',`
+# CJP: commenting this out until typeattribute works in a conditional
+# tunable_policy(`run_ssh_inetd',`
+ inetd_tcp_service_domain(sshd_t,sshd_exec_t)
+# ',`
+# init_daemon_domain(sshd_t,sshd_exec_t)
+# ')
+',`
+ # These rules should match the else block
+ # of the run_ssh_inetd tunable directly above
+ init_daemon_domain(sshd_t,sshd_exec_t)
+')
+
type sshd_exec_t;
files_file_type(sshd_exec_t)
@@ -59,18 +72,6 @@ seutil_read_config(sshd_t)
# Allow checking users mail at login
mta_getattr_spool(sshd_t)
-optional_policy(`inetd.te',`
- tunable_policy(`run_ssh_inetd',`
- inetd_service_domain(sshd_t,sshd_exec_t)
- ',`
- init_daemon_domain(sshd_t,sshd_exec_t)
- ')
-',`
- # These rules should match the else block
- # of the run_ssh_inetd tunable directly above
- init_daemon_domain(sshd_t,sshd_exec_t)
-')
-
ifdef(`TODO',`
tunable_policy(`ssh_sysadm_login',`
userdom_spec_domtrans_all_users(sshd_t)
@@ -104,11 +105,6 @@ tunable_policy(`ssh_sysadm_login',`
allow userdomain sshd_t:unix_stream_socket rw_stream_socket_perms;
')
-# this goes to inetd
-tunable_policy(`run_ssh_inetd',`
- corenet_tcp_bind_ssh_port(inetd_t)
-')
-
# for when the network connection breaks after running newrole -r sysadm_r
dontaudit sshd_t sysadm_devpts_t:chr_file setattr;
@@ -161,10 +157,6 @@ domain_auto_trans(sysadm_t, sshd_exec_t, sshd_t)
role_transition sysadm_r sshd_exec_t system_r;
')
-# so a tunnel can point to another ssh tunnel...
-allow sshd_t kernel_t:tcp_socket recvfrom;
-allow sshd_t kernel_t:tcp_socket recvfrom;
-
# for port forwarding
allow userdomain sshd_t:tcp_socket { connectto recvfrom };
allow sshd_t userdomain:tcp_socket { acceptfrom recvfrom };
diff --git a/refpolicy/policy/modules/system/corecommands.if b/refpolicy/policy/modules/system/corecommands.if
index f5ddc8f..35da2dd 100644
--- a/refpolicy/policy/modules/system/corecommands.if
+++ b/refpolicy/policy/modules/system/corecommands.if
@@ -3,10 +3,12 @@
## in /bin, /sbin, /usr/bin, and /usr/sbin.
## </summary>
-#######################################
-#
-# corecmd_shell_entry_type(domain)
-#
+## <summary>
+## Make the shell an entrypoint for the specified domain.
+## </summary>
+## <param name="domain">
+## The domain for which the shell is an entrypoint.
+## </param>
interface(`corecmd_shell_entry_type',`
gen_require(`
type shell_exec_t;
@@ -41,6 +43,38 @@ interface(`corecmd_list_bin',`
allow $1 bin_t:dir r_dir_perms;
')
+## <summary>
+## Get the attributes of files in bin directories.
+## </summary>
+## <param name="domain">
+## The type of the process performing this action.
+## </param>
+interface(`corecmd_getattr_bin_file',`
+ gen_require(`
+ type bin_t;
+ class file getattr;
+ ')
+
+ allow $1 bin_t:file getattr;
+')
+
+## <summary>
+## Read symbolic links in bin directories.
+## </summary>
+## <param name="domain">
+## The type of the process performing this action.
+## </param>
+interface(`corecmd_read_bin_symlink',`
+ gen_require(`
+ type bin_t;
+ class dir search;
+ class lnk_file read;
+ ')
+
+ allow $1 bin_t:dir search;
+ allow $1 bin_t:lnk_file read;
+')
+
########################################
#
# corecmd_exec_bin(domain)
@@ -86,6 +120,19 @@ interface(`corecmd_list_sbin',`
########################################
#
+# corecmd_getattr_sbin_file(domain)
+#
+interface(`corecmd_getattr_sbin_file',`
+ gen_require(`
+ type sbin_t;
+ class file getattr;
+ ')
+
+ allow $1 sbin_t:file getattr;
+')
+
+########################################
+#
# corecmd_dontaudit_getattr_sbin_file(domain)
#
interface(`corecmd_dontaudit_getattr_sbin_file',`
@@ -94,7 +141,7 @@ interface(`corecmd_dontaudit_getattr_sbin_file',`
class file getattr;
')
- allow $1 sbin_t:file getattr;
+ dontaudit $1 sbin_t:file getattr;
')
########################################
diff --git a/refpolicy/policy/modules/system/files.if b/refpolicy/policy/modules/system/files.if
index 1bddf1d..d50918a 100644
--- a/refpolicy/policy/modules/system/files.if
+++ b/refpolicy/policy/modules/system/files.if
@@ -649,6 +649,19 @@ interface(`files_list_home',`
########################################
#
+# files_search_mnt(domain)
+#
+interface(`files_search_mnt',`
+ gen_require(`
+ type mnt_t;
+ class dir search;
+ ')
+
+ allow $1 mnt_t:dir search;
+')
+
+########################################
+#
# files_list_mnt(domain)
#
interface(`files_list_mnt',`
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