/usr/share/selinux/ubuntu/include/admin/su.if is in selinux-policy-ubuntu-dev 0.2.20091117-0ubuntu2.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 229 230 231 232 233 234 235 236 237 238 239 240 241 242 243 244 245 246 247 248 249 250 251 252 253 254 255 256 257 258 259 260 261 262 263 264 265 266 267 268 269 270 271 272 273 274 275 276 277 278 279 280 281 282 283 284 285 286 287 288 289 290 291 292 293 294 295 296 297 298 299 300 301 302 303 304 305 306 307 308 309 310 311 312 313 314 315 316 317 318 319 320 321 322 323 324 325 326 327 328 | ## <summary>Run shells with substitute user and group</summary>
#######################################
## <summary>
## Restricted su domain template.
## </summary>
## <desc>
## <p>
## This template creates a derived domain which is allowed
## to change the linux user id, to run shells as a different
## user.
## </p>
## </desc>
## <param name="userdomain_prefix">
## <summary>
## The prefix of the user domain (e.g., user
## is the prefix for user_t).
## </summary>
## </param>
## <param name="user_domain">
## <summary>
## The type of the user domain.
## </summary>
## </param>
## <param name="user_role">
## <summary>
## The role associated with the user domain.
## </summary>
## </param>
#
template(`su_restricted_domain_template', `
gen_require(`
type su_exec_t;
')
type $1_su_t;
domain_entry_file($1_su_t, su_exec_t)
domain_type($1_su_t)
domain_interactive_fd($1_su_t)
role $3 types $1_su_t;
allow $2 $1_su_t:process signal;
allow $1_su_t self:capability { audit_control audit_write setuid setgid net_bind_service chown dac_override fowner sys_nice sys_resource };
dontaudit $1_su_t self:capability sys_tty_config;
allow $1_su_t self:key { search write };
allow $1_su_t self:process { setexec setsched setrlimit };
allow $1_su_t self:fifo_file rw_fifo_file_perms;
allow $1_su_t self:netlink_audit_socket { nlmsg_relay create_netlink_socket_perms };
allow $1_su_t self:unix_stream_socket create_stream_socket_perms;
# Transition from the user domain to this domain.
domtrans_pattern($2, su_exec_t, $1_su_t)
# By default, revert to the calling domain when a shell is executed.
corecmd_shell_domtrans($1_su_t,$2)
allow $2 $1_su_t:fd use;
allow $2 $1_su_t:fifo_file rw_file_perms;
allow $2 $1_su_t:process sigchld;
kernel_read_system_state($1_su_t)
kernel_read_kernel_sysctls($1_su_t)
kernel_search_key($1_su_t)
kernel_link_key($1_su_t)
# for SSP
dev_read_urand($1_su_t)
files_read_etc_files($1_su_t)
files_read_etc_runtime_files($1_su_t)
files_search_var_lib($1_su_t)
files_dontaudit_getattr_tmp_dirs($1_su_t)
# for the rootok check
selinux_compute_access_vector($1_su_t)
auth_domtrans_chk_passwd($1_su_t)
auth_dontaudit_read_shadow($1_su_t)
auth_use_nsswitch($1_su_t)
auth_rw_faillog($1_su_t)
domain_use_interactive_fds($1_su_t)
init_dontaudit_use_fds($1_su_t)
init_dontaudit_use_script_ptys($1_su_t)
# Write to utmp.
init_rw_utmp($1_su_t)
logging_send_syslog_msg($1_su_t)
miscfiles_read_localization($1_su_t)
ifdef(`distro_redhat',`
# RHEL5 and possibly newer releases incl. Fedora
auth_domtrans_upd_passwd($1_su_t)
optional_policy(`
locallogin_search_keys($1_su_t)
')
')
ifdef(`distro_rhel4',`
domain_role_change_exemption($1_su_t)
domain_subj_id_change_exemption($1_su_t)
domain_obj_id_change_exemption($1_su_t)
selinux_get_fs_mount($1_su_t)
selinux_validate_context($1_su_t)
selinux_compute_access_vector($1_su_t)
selinux_compute_create_context($1_su_t)
selinux_compute_relabel_context($1_su_t)
selinux_compute_user_contexts($1_su_t)
seutil_read_config($1_su_t)
seutil_read_default_contexts($1_su_t)
# Only allow transitions to unprivileged user domains.
userdom_spec_domtrans_unpriv_users($1_su_t)
')
optional_policy(`
cron_read_pipes($1_su_t)
')
optional_policy(`
kerberos_use($1_su_t)
')
optional_policy(`
# used when the password has expired
usermanage_read_crack_db($1_su_t)
')
ifdef(`TODO',`
# Caused by su - init scripts
dontaudit $1_su_t initrc_devpts_t:chr_file { getattr ioctl };
') dnl end TODO
')
#######################################
## <summary>
## The role template for the su module.
## </summary>
## <param name="role_prefix">
## <summary>
## The prefix of the user role (e.g., user
## is the prefix for user_r).
## </summary>
## </param>
## <param name="user_role">
## <summary>
## The role associated with the user domain.
## </summary>
## </param>
## <param name="user_domain">
## <summary>
## The type of the user domain.
## </summary>
## </param>
#
template(`su_role_template',`
gen_require(`
attribute su_domain_type;
type su_exec_t;
bool secure_mode;
')
type $1_su_t, su_domain_type;
domain_entry_file($1_su_t, su_exec_t)
domain_type($1_su_t)
domain_interactive_fd($1_su_t)
ubac_constrained($1_su_t)
role $2 types $1_su_t;
allow $3 $1_su_t:process signal;
allow $1_su_t self:capability { audit_control audit_write setuid setgid net_bind_service chown dac_override fowner sys_nice sys_resource };
dontaudit $1_su_t self:capability sys_tty_config;
allow $1_su_t self:process { setexec setsched setrlimit };
allow $1_su_t self:fifo_file rw_fifo_file_perms;
allow $1_su_t self:netlink_audit_socket { nlmsg_relay create_netlink_socket_perms };
allow $1_su_t self:key { search write };
# Transition from the user domain to this domain.
domtrans_pattern($3, su_exec_t, $1_su_t)
ps_process_pattern($3, $1_su_t)
# By default, revert to the calling domain when a shell is executed.
corecmd_shell_domtrans($1_su_t, $3)
allow $3 $1_su_t:fd use;
allow $3 $1_su_t:fifo_file rw_file_perms;
allow $3 $1_su_t:process sigchld;
kernel_read_system_state($1_su_t)
kernel_read_kernel_sysctls($1_su_t)
kernel_search_key($1_su_t)
kernel_link_key($1_su_t)
# for SSP
dev_read_urand($1_su_t)
fs_search_auto_mountpoints($1_su_t)
# needed for pam_rootok
selinux_compute_access_vector($1_su_t)
auth_domtrans_chk_passwd($1_su_t)
auth_dontaudit_read_shadow($1_su_t)
auth_use_nsswitch($1_su_t)
auth_rw_faillog($1_su_t)
corecmd_search_bin($1_su_t)
domain_use_interactive_fds($1_su_t)
files_read_etc_files($1_su_t)
files_read_etc_runtime_files($1_su_t)
files_search_var_lib($1_su_t)
files_dontaudit_getattr_tmp_dirs($1_su_t)
init_dontaudit_use_fds($1_su_t)
# Write to utmp.
init_rw_utmp($1_su_t)
mls_file_write_all_levels($1_su_t)
logging_send_syslog_msg($1_su_t)
miscfiles_read_localization($1_su_t)
userdom_use_user_terminals($1_su_t)
userdom_search_user_home_dirs($1_su_t)
ifdef(`distro_redhat',`
# RHEL5 and possibly newer releases incl. Fedora
auth_domtrans_upd_passwd($1_su_t)
optional_policy(`
locallogin_search_keys($1_su_t)
')
')
ifdef(`distro_rhel4',`
domain_role_change_exemption($1_su_t)
domain_subj_id_change_exemption($1_su_t)
domain_obj_id_change_exemption($1_su_t)
selinux_get_fs_mount($1_su_t)
selinux_validate_context($1_su_t)
selinux_compute_create_context($1_su_t)
selinux_compute_relabel_context($1_su_t)
selinux_compute_user_contexts($1_su_t)
# Relabel ttys and ptys.
term_relabel_all_user_ttys($1_su_t)
term_relabel_all_user_ptys($1_su_t)
# Close and re-open ttys and ptys to get the fd into the correct domain.
term_use_all_user_ttys($1_su_t)
term_use_all_user_ptys($1_su_t)
seutil_read_config($1_su_t)
seutil_read_default_contexts($1_su_t)
if(secure_mode) {
# Only allow transitions to unprivileged user domains.
userdom_spec_domtrans_unpriv_users($1_su_t)
} else {
# Allow transitions to all user domains
userdom_spec_domtrans_all_users($1_su_t)
}
optional_policy(`
unconfined_domtrans($1_su_t)
unconfined_signal($1_su_t)
')
')
tunable_policy(`allow_polyinstantiation',`
fs_mount_xattr_fs($1_su_t)
fs_unmount_xattr_fs($1_su_t)
')
tunable_policy(`use_nfs_home_dirs',`
fs_search_nfs($1_su_t)
')
tunable_policy(`use_samba_home_dirs',`
fs_search_cifs($1_su_t)
')
optional_policy(`
cron_read_pipes($1_su_t)
')
optional_policy(`
kerberos_use($1_su_t)
')
optional_policy(`
# used when the password has expired
usermanage_read_crack_db($1_su_t)
')
# Modify .Xauthority file (via xauth program).
optional_policy(`
xserver_user_home_dir_filetrans_user_xauth($1_su_t)
xserver_domtrans_xauth($1_su_t)
')
')
#######################################
## <summary>
## Execute su in the caller domain.
## </summary>
## <param name="domain">
## <summary>
## Domain allowed access.
## </summary>
## </param>
#
interface(`su_exec',`
gen_require(`
type su_exec_t;
')
can_exec($1, su_exec_t)
')
|