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implement direct_sysadm_daemon

This commit is contained in:
Chris PeBenito 2005-07-07 15:25:28 +00:00
parent 1aa526281b
commit e5f8060316
8 changed files with 123 additions and 22 deletions
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33
refpolicy/policy/modules/services/mta.if
View File

@ -147,16 +147,39 @@ interface(`mta_mailserver',`
typeattribute $1 mailserver_domain;
')
#######################################
#
# mta_sendmail_mailserver(domain,entrypointtype)
#
########################################
## <summary>
## Modified mailserver interface for
## sendmail daemon use.
## </summary>
## <desc>
## <p>
## A modified MTA mail server interface for
## the sendmail program. It's design does
## not fit well with policy, and using the
## regular interface causes a type_transition
## conflict if direct running of init scripts
## is enabled.
## </p>
## <p>
## This interface should most likely only be used
## by the sendmail policy.
## </p>
## </desc>
## <param name="domain">
## The type to be used for the mail server.
## </param>
## <param name="entry_point">
## The type to be used for the domain entry point program.
## </param>
interface(`mta_sendmail_mailserver',`
gen_require(`
attribute mailserver_domain;
type sendmail_exec_t;
')
mta_mailserver($1,sendmail_exec_t)
init_system_domain($1,sendmail_exec_t)
typeattribute $1 mailserver_domain;
')
#######################################

4
refpolicy/policy/modules/services/ssh.te
View File

@ -18,7 +18,7 @@ files_type(ssh_exec_t)
type ssh_keygen_t;
type ssh_keygen_exec_t;
init_daemon_domain(ssh_keygen_t,ssh_keygen_exec_t)
init_system_domain(ssh_keygen_t,ssh_keygen_exec_t)
role system_r types ssh_keygen_t;
ssh_server_template(sshd)
@ -207,6 +207,8 @@ allow ssh_keygen_t proc_t:lnk_file read;
userdom_use_sysadm_tty(ssh_keygen_t)
userdom_dontaudit_use_unpriv_user_fd(ssh_keygen_t)
# cjp: with the old daemon_(base_)domain being broken up into
# a daemon and system interface, this probably is not needed:
ifdef(`direct_sysadm_daemon',`
userdom_dontaudit_use_sysadm_terms(ssh_keygen_t)
')

2
refpolicy/policy/modules/system/authlogin.te
View File

@ -190,6 +190,8 @@ seutil_read_file_contexts(pam_console_t)
userdom_dontaudit_use_unpriv_user_fd(pam_console_t)
# cjp: with the old daemon_(base_)domain being broken up into
# a daemon and system interface, this probably is not needed:
ifdef(`direct_sysadm_daemon', `
userdom_dontaudit_use_sysadm_terms(pam_console_t)
')

78
refpolicy/policy/modules/system/init.if
View File

@ -1,8 +1,15 @@
## <summary>System initialization programs (init and init scripts).</summary>
########################################
#
# init_domain(domain,entrypointfile)
## <summary>
## Create a domain which can be started by init.
## </summary>
## <param name="domain">
## Type to be used as a domain.
## </param>
## <param name="entry_point">
## Type of the program to be used as an entry point to this domain.
## </param>
#
interface(`init_domain',`
gen_require(`
@ -34,16 +41,25 @@ interface(`init_domain',`
')
########################################
#
# init_daemon_domain(domain,entrypointfile)
## <summary>
## Create a domain for long running processes
## (daemons) which can be started by init scripts.
## </summary>
## <param name="domain">
## Type to be used as a domain.
## </param>
## <param name="entry_point">
## Type of the program to be used as an entry point to this domain.
## </param>
#
interface(`init_daemon_domain',`
gen_require(`
attribute direct_run_init, direct_init, direct_init_entry;
type initrc_t;
role system_r;
class fifo_file rw_file_perms;
class fd use;
class process sigchld;
class process { noatsecure siginh rlimitinh sigchld };
')
domain_type($1)
@ -54,10 +70,24 @@ interface(`init_daemon_domain',`
domain_auto_trans(initrc_t,$2,$1)
allow initrc_t $1:fd use;
allow initrc_t $1:process { noatsecure siginh rlimitinh };
allow $1 initrc_t:fd use;
allow $1 initrc_t:fifo_file rw_file_perms;
allow $1 initrc_t:process sigchld;
ifdef(`direct_sysadm_daemon',`
domain_auto_trans(direct_run_init,$2,$1)
allow direct_run_init $1:fd use;
allow direct_run_init $1:process { noatsecure siginh rlimitinh };
allow $1 direct_run_init:fd use;
allow $1 direct_run_init:fifo_file rw_file_perms;
allow $1 direct_run_init:process sigchld;
typeattribute $1 direct_init;
typeattribute $2 direct_init_entry;
')
# Red Hat systems seem to have a stray
# fd open from the initrd
optional_policy(`distro_redhat',`
@ -67,8 +97,16 @@ interface(`init_daemon_domain',`
')
########################################
#
# init_system_domain(domain,entrypointfile)
## <summary>
## Create a domain for short running processes
## which can be started by init scripts.
## </summary>
## <param name="domain">
## Type to be used as a domain.
## </param>
## <param name="entry_point">
## Type of the program to be used as an entry point to this domain.
## </param>
#
interface(`init_system_domain',`
gen_require(`
@ -259,6 +297,32 @@ interface(`init_domtrans_script',`
allow initrc_t $1:process sigchld;
')
########################################
## <desc>
## Start and stop daemon programs directly.
## </desc>
## <param name="domain">
## The type of the process performing this action.
## </param>
## <param name="role">
## The role to be performing this action.
## </param>
## <param name="terminal">
## The type of the terminal of the user.
## </param>
#
interface(`init_run_daemon',`
gen_require(`
attribute direct_run_init, direct_init, direct_init_entry;
role system_r;
class chr_file rw_file_perms;
')
typeattribute $1 direct_run_init;
role_transition $2 direct_init_entry system_r;
dontaudit direct_init $3:chr_file rw_file_perms;
')
########################################
#
# init_exec_script(domain)

6
refpolicy/policy/modules/system/init.te
View File

@ -6,6 +6,12 @@ policy_module(init,1.0)
# Declarations
#
# used for direct running of init scripts
# by admin domains
attribute direct_run_init;
attribute direct_init;
attribute direct_init_entry;
#
# init_t is the domain of the init process.
#

8
refpolicy/policy/modules/system/logging.te
View File

@ -82,9 +82,7 @@ libs_use_shared_libs(auditd_t)
miscfiles_read_localization(auditd_t)
userdom_dontaudit_use_unpriv_user_fd(auditd_t)
# cjp: this is questionable. it should probably
# be a userdom_dontaudit_use_sysadm_terms(auditd_t)
# in a direct_sysadm_daemon tunable
# cjp: this is questionable
userdom_use_sysadm_tty(auditd_t)
ifdef(`targeted_policy', `
@ -248,10 +246,6 @@ ifdef(`klogd.te', `', `
kernel_change_ring_buffer_level(syslogd_t)
')
ifdef(`direct_sysadm_daemon',`
userdom_dontaudit_use_sysadm_terms(syslogd_t)
')
ifdef(`targeted_policy', `
term_dontaudit_use_unallocated_tty(syslogd_t)
term_dontaudit_use_generic_pty(syslogd_t)

6
refpolicy/policy/modules/system/userdomain.te
View File

@ -100,6 +100,12 @@ ifdef(`targeted_policy',`
allow sysadm_t user_home_dir_t:dir create_dir_perms;
files_create_home_dirs(sysadm_t,user_home_dir_t)
ifdef(`direct_sysadm_daemon',`
optional_policy(`init.te',`
init_run_daemon(sysadm_t,sysadm_r,admin_terminal)
')
')
optional_policy(`bootloader.te',`
bootloader_run(sysadm_t,sysadm_r,admin_terminal)
')

8
refpolicy/policy/users
View File

@ -38,7 +38,11 @@ gen_user(user_u, user_r, s0, s0 - s9:c0.c127)
# not in the sysadm_r.
#
ifdef(`targeted_policy',`
gen_user(root, user_r sysadm_r system_r, s0, s0 - s9:c0.c127)
gen_user(root, user_r sysadm_r system_r, s0, s0 - s9:c0.c127)
',`
gen_user(root, sysadm_r staff_r, s0, s0 - s9:c0.c127)
ifdef(`direct_sysadm_daemon',`
gen_user(root, sysadm_r staff_r system_r, s0, s0 - s9:c0.c127)
',`
gen_user(root, sysadm_r staff_r, s0, s0 - s9:c0.c127)
')
')