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Commit | Line | Data |
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0404a390 | 1 | |
6b19be33 | 2 | policy_module(ssh,1.5.1) |
0404a390 CP |
3 | |
4 | ######################################## | |
5 | # | |
6 | # Declarations | |
7 | # | |
8 | ||
45239964 | 9 | attribute ssh_server; |
0404a390 | 10 | |
6b19be33 CP |
11 | # Type for the ssh-agent executable. |
12 | type ssh_agent_exec_t; | |
13 | files_type(ssh_agent_exec_t) | |
14 | ||
0404a390 CP |
15 | # ssh client executable. |
16 | type ssh_exec_t; | |
fb63d0b5 | 17 | corecmd_executable_file(ssh_exec_t) |
0404a390 | 18 | |
75beb950 | 19 | type ssh_keygen_t; |
0404a390 | 20 | type ssh_keygen_exec_t; |
75beb950 CP |
21 | init_system_domain(ssh_keygen_t,ssh_keygen_exec_t) |
22 | role system_r types ssh_keygen_t; | |
0404a390 | 23 | |
a0824843 | 24 | type ssh_keysign_exec_t; |
4c44b8d5 | 25 | corecmd_executable_file(ssh_keysign_exec_t) |
a0824843 | 26 | |
e070dd2d | 27 | type sshd_exec_t; |
fb63d0b5 | 28 | corecmd_executable_file(sshd_exec_t) |
c3812748 | 29 | |
6b19be33 CP |
30 | ssh_server_template(sshd) |
31 | init_daemon_domain(sshd_t,sshd_exec_t) | |
32 | ||
33 | ssh_server_template(sshd_extern) | |
34 | ||
375c2415 CP |
35 | type sshd_key_t; |
36 | files_type(sshd_key_t) | |
9ccd96df | 37 | |
6b19be33 CP |
38 | type sshd_tmp_t; |
39 | files_tmp_file(sshd_tmp_t) | |
40 | files_poly_parent(sshd_tmp_t) | |
e070dd2d | 41 | |
6b19be33 CP |
42 | ifdef(`enable_mcs',` |
43 | init_ranged_daemon_domain(sshd_t,sshd_exec_t,s0 - mcs_systemhigh) | |
375c2415 | 44 | ') |
0404a390 CP |
45 | |
46 | ################################# | |
47 | # | |
48 | # sshd local policy | |
49 | # | |
50 | # sshd_t is the domain for the sshd program. | |
51 | # | |
52 | ||
6b19be33 CP |
53 | # so a tunnel can point to another ssh tunnel |
54 | allow sshd_t self:netlink_route_socket r_netlink_socket_perms; | |
55 | allow sshd_t self:key { search link write }; | |
bbdbdb9e | 56 | |
6b19be33 CP |
57 | manage_dirs_pattern(sshd_t,sshd_tmp_t,sshd_tmp_t) |
58 | manage_files_pattern(sshd_t,sshd_tmp_t,sshd_tmp_t) | |
59 | manage_sock_files_pattern(sshd_t,sshd_tmp_t,sshd_tmp_t) | |
60 | files_tmp_filetrans(sshd_t, sshd_tmp_t, { dir file sock_file }) | |
44d5d93f | 61 | |
6b19be33 CP |
62 | kernel_search_key(sshd_t) |
63 | kernel_link_key(sshd_t) | |
64 | ||
65 | # for X forwarding | |
66 | corenet_tcp_bind_xserver_port(sshd_t) | |
67 | corenet_sendrecv_xserver_server_packets(sshd_t) | |
68 | ||
69 | ifdef(`targeted_policy',` | |
70 | unconfined_domain(sshd_t) | |
71 | ') | |
72 | ||
73 | tunable_policy(`ssh_sysadm_login',` | |
74 | # Relabel and access ptys created by sshd | |
75 | # ioctl is necessary for logout() processing for utmp entry and for w to | |
76 | # display the tty. | |
77 | # some versions of sshd on the new SE Linux require setattr | |
78 | term_use_all_user_ptys(sshd_t) | |
79 | term_setattr_all_user_ptys(sshd_t) | |
80 | term_relabelto_all_user_ptys(sshd_t) | |
81 | ||
82 | userdom_spec_domtrans_all_users(sshd_t) | |
83 | userdom_signal_all_users(sshd_t) | |
84 | ',` | |
85 | userdom_spec_domtrans_unpriv_users(sshd_t) | |
86 | userdom_signal_unpriv_users(sshd_t) | |
87 | ||
88 | userdom_setattr_unpriv_users_ptys(sshd_t) | |
89 | userdom_relabelto_unpriv_users_ptys(sshd_t) | |
90 | userdom_use_unpriv_users_ptys(sshd_t) | |
91 | ') | |
92 | ||
93 | optional_policy(` | |
94 | daemontools_service_domain(sshd_t, sshd_exec_t) | |
95 | ') | |
96 | ||
97 | optional_policy(` | |
98 | inetd_tcp_service_domain(sshd_t, sshd_exec_t) | |
99 | ') | |
100 | ||
101 | optional_policy(` | |
102 | rpm_use_script_fds(sshd_t) | |
103 | ') | |
104 | ||
105 | optional_policy(` | |
106 | rssh_spec_domtrans_all_users(sshd_t) | |
107 | # For reading /home/user/.ssh | |
108 | rssh_read_all_users_ro_content(sshd_t) | |
109 | ') | |
110 | ||
111 | ifdef(`TODO',` | |
112 | tunable_policy(`ssh_sysadm_login',` | |
113 | # Relabel and access ptys created by sshd | |
114 | # ioctl is necessary for logout() processing for utmp entry and for w to | |
115 | # display the tty. | |
116 | # some versions of sshd on the new SE Linux require setattr | |
117 | allow sshd_t ptyfile:chr_file relabelto; | |
375c2415 | 118 | |
5540e76a | 119 | optional_policy(` |
6b19be33 | 120 | domain_trans(sshd_t, xauth_exec_t, userdomain) |
5540e76a | 121 | ') |
6b19be33 CP |
122 | ',` |
123 | optional_policy(` | |
124 | domain_trans(sshd_t, xauth_exec_t, unpriv_userdomain) | |
0404a390 | 125 | ') |
6b19be33 CP |
126 | # Relabel and access ptys created by sshd |
127 | # ioctl is necessary for logout() processing for utmp entry and for w to | |
128 | # display the tty. | |
129 | # some versions of sshd on the new SE Linux require setattr | |
130 | allow sshd_t userpty_type:chr_file { relabelto read write getattr ioctl setattr }; | |
9ccd96df | 131 | ') |
6b19be33 | 132 | ') dnl endif TODO |
0404a390 CP |
133 | |
134 | ################################# | |
135 | # | |
136 | # sshd_extern local policy | |
137 | # | |
138 | # sshd_extern_t is the domain for ssh from outside our network | |
139 | # | |
0404a390 | 140 | |
5540e76a | 141 | ifdef(`strict_policy',` |
375c2415 CP |
142 | ifdef(`TODO',` |
143 | domain_trans(sshd_extern_t, shell_exec_t, user_mini_domain) | |
144 | # Signal the user domains. | |
145 | allow sshd_extern_t user_mini_domain:process signal; | |
0404a390 | 146 | |
375c2415 CP |
147 | ifdef(`xauth.te', ` |
148 | domain_trans(sshd_extern_t, xauth_exec_t, user_mini_domain) | |
149 | ') | |
0404a390 | 150 | |
375c2415 CP |
151 | # Relabel and access ptys created by sshd |
152 | # ioctl is necessary for logout() processing for utmp entry and for w to | |
153 | # display the tty. | |
154 | # some versions of sshd on the new SE Linux require setattr | |
155 | allow sshd_extern_t user_mini_domain:chr_file { relabelto read write getattr ioctl setattr }; | |
156 | ||
157 | # inheriting stream sockets is needed for "ssh host command" as no pty | |
158 | # is allocated | |
159 | allow user_mini_domain sshd_extern_t:unix_stream_socket rw_stream_socket_perms; | |
160 | ||
bb7170f6 | 161 | optional_policy(` |
375c2415 CP |
162 | tunable_policy(`run_ssh_inetd',` |
163 | domain_trans(inetd_t, sshd_exec_t, sshd_extern_t) | |
164 | ',` | |
165 | domain_trans(initrc_t, sshd_exec_t, sshd_extern_t) | |
166 | ') | |
9ccd96df | 167 | ',` |
375c2415 CP |
168 | # These rules should match the else block |
169 | # of the run_ssh_inetd tunable directly above | |
0404a390 | 170 | domain_trans(initrc_t, sshd_exec_t, sshd_extern_t) |
9ccd96df | 171 | ') |
0404a390 | 172 | |
375c2415 CP |
173 | ifdef(`direct_sysadm_daemon', ` |
174 | # Direct execution by sysadm_r. | |
175 | domain_auto_trans(sysadm_t, sshd_exec_t, sshd_t) | |
176 | role_transition sysadm_r sshd_exec_t system_r; | |
177 | ') | |
375c2415 CP |
178 | ') dnl endif TODO |
179 | ') | |
0404a390 CP |
180 | |
181 | ######################################## | |
182 | # | |
183 | # ssh_keygen local policy | |
184 | # | |
185 | ||
75beb950 CP |
186 | # ssh_keygen_t is the type of the ssh-keygen program when run at install time |
187 | # and by sysadm_t | |
0404a390 | 188 | |
75beb950 CP |
189 | dontaudit ssh_keygen_t self:capability sys_tty_config; |
190 | allow ssh_keygen_t self:process { sigchld sigkill sigstop signull signal }; | |
0404a390 | 191 | |
75beb950 | 192 | allow ssh_keygen_t self:unix_stream_socket create_stream_socket_perms; |
0404a390 | 193 | |
c0868a7a | 194 | allow ssh_keygen_t sshd_key_t:file manage_file_perms; |
75beb950 | 195 | files_etc_filetrans(ssh_keygen_t,sshd_key_t,file) |
0404a390 | 196 | |
75beb950 | 197 | kernel_read_kernel_sysctls(ssh_keygen_t) |
0404a390 | 198 | |
75beb950 | 199 | fs_search_auto_mountpoints(ssh_keygen_t) |
ab940a4c | 200 | |
75beb950 CP |
201 | dev_read_sysfs(ssh_keygen_t) |
202 | dev_read_urand(ssh_keygen_t) | |
0404a390 | 203 | |
75beb950 | 204 | term_dontaudit_use_console(ssh_keygen_t) |
0404a390 | 205 | |
75beb950 | 206 | domain_use_interactive_fds(ssh_keygen_t) |
0404a390 | 207 | |
75beb950 | 208 | files_read_etc_files(ssh_keygen_t) |
0404a390 | 209 | |
75beb950 CP |
210 | init_use_fds(ssh_keygen_t) |
211 | init_use_script_ptys(ssh_keygen_t) | |
0404a390 | 212 | |
75beb950 CP |
213 | libs_use_ld_so(ssh_keygen_t) |
214 | libs_use_shared_libs(ssh_keygen_t) | |
0404a390 | 215 | |
75beb950 | 216 | logging_send_syslog_msg(ssh_keygen_t) |
0404a390 | 217 | |
75beb950 CP |
218 | allow ssh_keygen_t proc_t:dir r_dir_perms; |
219 | allow ssh_keygen_t proc_t:lnk_file read; | |
0404a390 | 220 | |
75beb950 CP |
221 | userdom_use_sysadm_ttys(ssh_keygen_t) |
222 | userdom_dontaudit_use_unpriv_user_fds(ssh_keygen_t) | |
0404a390 | 223 | |
75beb950 CP |
224 | # cjp: with the old daemon_(base_)domain being broken up into |
225 | # a daemon and system interface, this probably is not needed: | |
226 | ifdef(`direct_sysadm_daemon',` | |
227 | userdom_dontaudit_use_sysadm_terms(ssh_keygen_t) | |
228 | ') | |
0404a390 | 229 | |
75beb950 CP |
230 | ifdef(`targeted_policy',` |
231 | term_dontaudit_use_unallocated_ttys(ssh_keygen_t) | |
232 | term_dontaudit_use_generic_ptys(ssh_keygen_t) | |
233 | files_dontaudit_read_root_files(ssh_keygen_t) | |
234 | ') | |
0404a390 | 235 | |
75beb950 CP |
236 | optional_policy(` |
237 | nscd_socket_use(ssh_keygen_t) | |
238 | ') | |
0404a390 | 239 | |
75beb950 CP |
240 | optional_policy(` |
241 | seutil_sigchld_newrole(ssh_keygen_t) | |
242 | ') | |
243 | ||
244 | optional_policy(` | |
245 | udev_read_db(ssh_keygen_t) | |
c0d1566a | 246 | ') |