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Commit | Line | Data |
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0404a390 | 1 | |
fb63d0b5 | 2 | policy_module(ssh,1.3.1) |
0404a390 CP |
3 | |
4 | ######################################## | |
5 | # | |
6 | # Declarations | |
7 | # | |
8 | ||
45239964 | 9 | attribute ssh_server; |
0404a390 | 10 | |
0404a390 CP |
11 | # ssh client executable. |
12 | type ssh_exec_t; | |
fb63d0b5 | 13 | corecmd_executable_file(ssh_exec_t) |
0404a390 | 14 | |
0404a390 | 15 | type ssh_keygen_exec_t; |
fb63d0b5 | 16 | corecmd_executable_file(ssh_keygen_exec_t) |
0404a390 | 17 | |
a0824843 CP |
18 | type ssh_keysign_exec_t; |
19 | files_type(ssh_keysign_exec_t) | |
20 | ||
c3812748 CP |
21 | # real declaration moved to mls until |
22 | # range_transition works in loadable modules | |
23 | gen_require(` | |
24 | type sshd_exec_t; | |
25 | ') | |
fb63d0b5 | 26 | corecmd_executable_file(sshd_exec_t) |
c3812748 | 27 | |
375c2415 CP |
28 | type sshd_key_t; |
29 | files_type(sshd_key_t) | |
9ccd96df | 30 | |
375c2415 CP |
31 | ifdef(`targeted_policy',` |
32 | unconfined_alias_domain(sshd_t) | |
33 | init_system_domain(sshd_t,sshd_exec_t) | |
2d13f729 CP |
34 | |
35 | type sshd_var_run_t; | |
36 | files_type(sshd_var_run_t) | |
375c2415 CP |
37 | ',` |
38 | # Type for the ssh-agent executable. | |
39 | type ssh_agent_exec_t; | |
40 | files_type(ssh_agent_exec_t) | |
41 | ||
42 | type ssh_keygen_t; | |
43 | init_system_domain(ssh_keygen_t,ssh_keygen_exec_t) | |
44 | role system_r types ssh_keygen_t; | |
45 | ||
46 | ssh_server_template(sshd) | |
47 | ssh_server_template(sshd_extern) | |
48 | ||
49 | # cjp: commenting this out until typeattribute works in a conditional | |
bb7170f6 | 50 | # optional_policy(` |
375c2415 CP |
51 | # tunable_policy(`run_ssh_inetd',` |
52 | # inetd_tcp_service_domain(sshd_t,sshd_exec_t) | |
53 | # ',` | |
54 | # init_daemon_domain(sshd_t,sshd_exec_t) | |
55 | # ') | |
80436b9b | 56 | # ',` |
375c2415 CP |
57 | # These rules should match the else block |
58 | # of the run_ssh_inetd tunable directly above | |
59 | init_daemon_domain(sshd_t,sshd_exec_t) | |
80436b9b | 60 | # ') |
0404a390 | 61 | |
375c2415 CP |
62 | type sshd_tmp_t; |
63 | files_tmp_file(sshd_tmp_t) | |
64 | ') | |
0404a390 CP |
65 | |
66 | ################################# | |
67 | # | |
68 | # sshd local policy | |
69 | # | |
70 | # sshd_t is the domain for the sshd program. | |
71 | # | |
72 | ||
375c2415 CP |
73 | ifdef(`targeted_policy',`',` |
74 | # so a tunnel can point to another ssh tunnel | |
75 | allow sshd_t self:tcp_socket { acceptfrom connectto recvfrom }; | |
0404a390 | 76 | |
375c2415 CP |
77 | allow sshd_t sshd_tmp_t:dir create_dir_perms; |
78 | allow sshd_t sshd_tmp_t:file create_file_perms; | |
79 | allow sshd_t sshd_tmp_t:sock_file create_file_perms; | |
103fe280 | 80 | files_tmp_filetrans(sshd_t, sshd_tmp_t, { dir file sock_file }) |
0404a390 | 81 | |
375c2415 CP |
82 | # for X forwarding |
83 | corenet_tcp_bind_xserver_port(sshd_t) | |
0404a390 | 84 | |
bf080a46 CP |
85 | mls_file_read_up(sshd_t) |
86 | mls_file_write_down(sshd_t) | |
87 | mls_file_upgrade(sshd_t) | |
88 | mls_file_downgrade(sshd_t) | |
89 | mls_process_set_level(sshd_t) | |
90 | ||
375c2415 | 91 | auth_exec_pam(sshd_t) |
e5590ea5 | 92 | |
375c2415 | 93 | seutil_read_config(sshd_t) |
e5590ea5 | 94 | |
375c2415 CP |
95 | tunable_policy(`ssh_sysadm_login',` |
96 | # Relabel and access ptys created by sshd | |
97 | # ioctl is necessary for logout() processing for utmp entry and for w to | |
98 | # display the tty. | |
99 | # some versions of sshd on the new SE Linux require setattr | |
100 | term_use_all_user_ptys(sshd_t) | |
101 | term_setattr_all_user_ptys(sshd_t) | |
102 | term_relabelto_all_user_ptys(sshd_t) | |
103 | ||
104 | userdom_spec_domtrans_all_users(sshd_t) | |
105 | userdom_signal_all_users(sshd_t) | |
106 | ',` | |
107 | userdom_spec_domtrans_unpriv_users(sshd_t) | |
108 | userdom_signal_unpriv_users(sshd_t) | |
f6abfdb8 | 109 | |
15722ec9 CP |
110 | userdom_setattr_unpriv_users_ptys(sshd_t) |
111 | userdom_relabelto_unpriv_users_ptys(sshd_t) | |
1815bad1 | 112 | userdom_use_unpriv_users_ptys(sshd_t) |
375c2415 | 113 | ') |
bbdbdb9e | 114 | |
bb7170f6 | 115 | optional_policy(` |
44d5d93f CP |
116 | daemontools_service_domain(sshd_t, sshd_exec_t) |
117 | ') | |
118 | ||
bb7170f6 | 119 | optional_policy(` |
15722ec9 | 120 | rpm_use_script_fds(sshd_t) |
0404a390 | 121 | ') |
375c2415 CP |
122 | |
123 | ifdef(`TODO',` | |
124 | tunable_policy(`ssh_sysadm_login',` | |
125 | # Relabel and access ptys created by sshd | |
126 | # ioctl is necessary for logout() processing for utmp entry and for w to | |
127 | # display the tty. | |
128 | # some versions of sshd on the new SE Linux require setattr | |
129 | allow sshd_t ptyfile:chr_file relabelto; | |
130 | ||
bb7170f6 | 131 | optional_policy(` |
375c2415 CP |
132 | domain_trans(sshd_t, xauth_exec_t, userdomain) |
133 | ') | |
134 | ',` | |
bb7170f6 | 135 | optional_policy(` |
375c2415 CP |
136 | domain_trans(sshd_t, xauth_exec_t, unpriv_userdomain) |
137 | ') | |
138 | # Relabel and access ptys created by sshd | |
139 | # ioctl is necessary for logout() processing for utmp entry and for w to | |
140 | # display the tty. | |
141 | # some versions of sshd on the new SE Linux require setattr | |
142 | allow sshd_t userpty_type:chr_file { relabelto read write getattr ioctl setattr }; | |
0404a390 | 143 | ') |
375c2415 | 144 | ') dnl endif TODO |
9ccd96df | 145 | ') |
0404a390 CP |
146 | |
147 | ################################# | |
148 | # | |
149 | # sshd_extern local policy | |
150 | # | |
151 | # sshd_extern_t is the domain for ssh from outside our network | |
152 | # | |
0404a390 | 153 | |
375c2415 CP |
154 | ifdef(`targeted_policy',`',` |
155 | ifdef(`TODO',` | |
156 | domain_trans(sshd_extern_t, shell_exec_t, user_mini_domain) | |
157 | # Signal the user domains. | |
158 | allow sshd_extern_t user_mini_domain:process signal; | |
0404a390 | 159 | |
375c2415 CP |
160 | ifdef(`xauth.te', ` |
161 | domain_trans(sshd_extern_t, xauth_exec_t, user_mini_domain) | |
162 | ') | |
0404a390 | 163 | |
375c2415 CP |
164 | # Relabel and access ptys created by sshd |
165 | # ioctl is necessary for logout() processing for utmp entry and for w to | |
166 | # display the tty. | |
167 | # some versions of sshd on the new SE Linux require setattr | |
168 | allow sshd_extern_t user_mini_domain:chr_file { relabelto read write getattr ioctl setattr }; | |
169 | ||
170 | # inheriting stream sockets is needed for "ssh host command" as no pty | |
171 | # is allocated | |
172 | allow user_mini_domain sshd_extern_t:unix_stream_socket rw_stream_socket_perms; | |
173 | ||
bb7170f6 | 174 | optional_policy(` |
375c2415 CP |
175 | tunable_policy(`run_ssh_inetd',` |
176 | domain_trans(inetd_t, sshd_exec_t, sshd_extern_t) | |
177 | ',` | |
178 | domain_trans(initrc_t, sshd_exec_t, sshd_extern_t) | |
179 | ') | |
9ccd96df | 180 | ',` |
375c2415 CP |
181 | # These rules should match the else block |
182 | # of the run_ssh_inetd tunable directly above | |
0404a390 | 183 | domain_trans(initrc_t, sshd_exec_t, sshd_extern_t) |
9ccd96df | 184 | ') |
0404a390 | 185 | |
375c2415 CP |
186 | ifdef(`direct_sysadm_daemon', ` |
187 | # Direct execution by sysadm_r. | |
188 | domain_auto_trans(sysadm_t, sshd_exec_t, sshd_t) | |
189 | role_transition sysadm_r sshd_exec_t system_r; | |
190 | ') | |
0404a390 | 191 | |
375c2415 CP |
192 | # for port forwarding |
193 | allow userdomain sshd_t:tcp_socket { connectto recvfrom }; | |
194 | allow sshd_t userdomain:tcp_socket { acceptfrom recvfrom }; | |
195 | allow userdomain kernel_t:tcp_socket recvfrom; | |
196 | allow sshd_t kernel_t:tcp_socket recvfrom; | |
197 | ') dnl endif TODO | |
198 | ') | |
0404a390 CP |
199 | |
200 | ######################################## | |
201 | # | |
202 | # ssh_keygen local policy | |
203 | # | |
204 | ||
375c2415 CP |
205 | ifdef(`targeted_policy',`',` |
206 | # ssh_keygen_t is the type of the ssh-keygen program when run at install time | |
207 | # and by sysadm_t | |
0404a390 | 208 | |
375c2415 CP |
209 | dontaudit ssh_keygen_t self:capability sys_tty_config; |
210 | allow ssh_keygen_t self:process { sigchld sigkill sigstop signull signal }; | |
0404a390 | 211 | |
375c2415 | 212 | allow ssh_keygen_t self:unix_stream_socket create_stream_socket_perms; |
0404a390 | 213 | |
375c2415 | 214 | allow ssh_keygen_t sshd_key_t:file create_file_perms; |
103fe280 | 215 | files_etc_filetrans(ssh_keygen_t,sshd_key_t,file) |
0404a390 | 216 | |
445522dc | 217 | kernel_read_kernel_sysctls(ssh_keygen_t) |
0404a390 | 218 | |
375c2415 | 219 | fs_search_auto_mountpoints(ssh_keygen_t) |
ab940a4c | 220 | |
375c2415 CP |
221 | dev_read_sysfs(ssh_keygen_t) |
222 | dev_read_urand(ssh_keygen_t) | |
0404a390 | 223 | |
375c2415 | 224 | term_dontaudit_use_console(ssh_keygen_t) |
0404a390 | 225 | |
15722ec9 | 226 | domain_use_interactive_fds(ssh_keygen_t) |
0404a390 | 227 | |
375c2415 | 228 | files_read_etc_files(ssh_keygen_t) |
0404a390 | 229 | |
1c1ac67f | 230 | init_use_fds(ssh_keygen_t) |
1815bad1 | 231 | init_use_script_ptys(ssh_keygen_t) |
0404a390 | 232 | |
375c2415 CP |
233 | libs_use_ld_so(ssh_keygen_t) |
234 | libs_use_shared_libs(ssh_keygen_t) | |
0404a390 | 235 | |
375c2415 | 236 | logging_send_syslog_msg(ssh_keygen_t) |
0404a390 | 237 | |
375c2415 CP |
238 | allow ssh_keygen_t proc_t:dir r_dir_perms; |
239 | allow ssh_keygen_t proc_t:lnk_file read; | |
0404a390 | 240 | |
1815bad1 | 241 | userdom_use_sysadm_ttys(ssh_keygen_t) |
15722ec9 | 242 | userdom_dontaudit_use_unpriv_user_fds(ssh_keygen_t) |
0404a390 | 243 | |
375c2415 CP |
244 | # cjp: with the old daemon_(base_)domain being broken up into |
245 | # a daemon and system interface, this probably is not needed: | |
246 | ifdef(`direct_sysadm_daemon',` | |
247 | userdom_dontaudit_use_sysadm_terms(ssh_keygen_t) | |
248 | ') | |
0404a390 | 249 | |
375c2415 | 250 | ifdef(`targeted_policy', ` |
1815bad1 CP |
251 | term_dontaudit_use_unallocated_ttys(ssh_keygen_t) |
252 | term_dontaudit_use_generic_ptys(ssh_keygen_t) | |
9e04f5c5 | 253 | files_dontaudit_read_root_files(ssh_keygen_t) |
375c2415 | 254 | ') |
0404a390 | 255 | |
bb7170f6 | 256 | optional_policy(` |
375c2415 CP |
257 | seutil_sigchld_newrole(ssh_keygen_t) |
258 | ') | |
0404a390 | 259 | |
bb7170f6 | 260 | optional_policy(` |
375c2415 CP |
261 | udev_read_db(ssh_keygen_t) |
262 | ') | |
c0d1566a | 263 | ') |