Diffstat (limited to 'core/opie-login/loginapplication.cpp') (more/less context) (show whitespace changes)
-rw-r--r-- | core/opie-login/loginapplication.cpp | 74 |
1 files changed, 67 insertions, 7 deletions
diff --git a/core/opie-login/loginapplication.cpp b/core/opie-login/loginapplication.cpp index 8d86a71..1facf2d 100644 --- a/core/opie-login/loginapplication.cpp +++ b/core/opie-login/loginapplication.cpp | |||
@@ -21,24 +21,26 @@ | |||
21 | -_. . . )=. = see the file COPYING. If not, write to the | 21 | -_. . . )=. = see the file COPYING. If not, write to the |
22 | -- :-=` Free Software Foundation, Inc., | 22 | -- :-=` Free Software Foundation, Inc., |
23 | 59 Temple Place - Suite 330, | 23 | 59 Temple Place - Suite 330, |
24 | Boston, MA 02111-1307, USA. | 24 | Boston, MA 02111-1307, USA. |
25 | 25 | ||
26 | */ | 26 | */ |
27 | 27 | ||
28 | #include <pwd.h> | 28 | #include <pwd.h> |
29 | #include <grp.h> | 29 | #include <grp.h> |
30 | #include <unistd.h> | 30 | #include <unistd.h> |
31 | #include <stdlib.h> | 31 | #include <stdlib.h> |
32 | #include <signal.h> | 32 | #include <signal.h> |
33 | #include <sys/stat.h> | ||
34 | #include <sys/wait.h> | ||
33 | 35 | ||
34 | #ifdef USEPAM | 36 | #ifdef USEPAM |
35 | extern "C" { | 37 | extern "C" { |
36 | #include <security/pam_appl.h> | 38 | #include <security/pam_appl.h> |
37 | } | 39 | } |
38 | #else | 40 | #else |
39 | #include <crypt.h> | 41 | #include <crypt.h> |
40 | #include <shadow.h> | 42 | #include <shadow.h> |
41 | #endif | 43 | #endif |
42 | 44 | ||
43 | #include "loginapplication.h" | 45 | #include "loginapplication.h" |
44 | 46 | ||
@@ -149,53 +151,111 @@ bool LoginApplication::checkPassword ( const char *user, const char *pass ) | |||
149 | 151 | ||
150 | bool LoginApplication::changeIdentity ( ) | 152 | bool LoginApplication::changeIdentity ( ) |
151 | { | 153 | { |
152 | const char *DEFAULT_LOGIN_PATH = "/bin:/usr/bin"; | 154 | const char *DEFAULT_LOGIN_PATH = "/bin:/usr/bin"; |
153 | const char *DEFAULT_ROOT_LOGIN_PATH = "/usr/sbin:/bin:/usr/bin:/sbin"; | 155 | const char *DEFAULT_ROOT_LOGIN_PATH = "/usr/sbin:/bin:/usr/bin:/sbin"; |
154 | 156 | ||
155 | if ( !s_username ) | 157 | if ( !s_username ) |
156 | return false; | 158 | return false; |
157 | struct passwd *pw = ::getpwnam ( s_username ); | 159 | struct passwd *pw = ::getpwnam ( s_username ); |
158 | if ( !pw ) | 160 | if ( !pw ) |
159 | return false; | 161 | return false; |
160 | 162 | ||
163 | // we are still root at this point - try to run the pre-session script | ||
164 | if ( !runRootScript ( "OPIEDIR", "share/opie-login/pre-session", s_username )) | ||
165 | qWarning ( "failed to run $OPIEDIR/share/opie-login/pre-session" ); | ||
166 | |||
161 | bool fail = false; | 167 | bool fail = false; |
162 | fail |= ( ::initgroups ( pw-> pw_name, pw-> pw_gid )); | 168 | fail |= ( ::initgroups ( pw-> pw_name, pw-> pw_gid )); |
163 | ::endgrent ( ); | 169 | ::endgrent ( ); |
164 | fail |= ( ::setgid ( pw-> pw_gid )); | 170 | fail |= ( ::setgid ( pw-> pw_gid )); |
165 | fail |= ( ::setuid ( pw-> pw_uid )); | 171 | fail |= ( ::setuid ( pw-> pw_uid )); |
166 | 172 | ||
167 | fail |= ( ::chdir ( pw-> pw_dir ) && ::chdir ( "/" )); | 173 | fail |= ( ::chdir ( pw-> pw_dir ) && ::chdir ( "/" )); |
168 | 174 | ||
169 | fail |= ( ::setenv ( "HOME", pw-> pw_dir, 1 )); | 175 | fail |= ( ::setenv ( "HOME", pw-> pw_dir, 1 )); |
170 | fail |= ( ::setenv ( "SHELL", pw-> pw_shell, 1 )); | 176 | fail |= ( ::setenv ( "SHELL", pw-> pw_shell, 1 )); |
171 | fail |= ( ::setenv ( "USER", pw-> pw_name, 1 )); | 177 | fail |= ( ::setenv ( "USER", pw-> pw_name, 1 )); |
172 | fail |= ( ::setenv ( "LOGNAME", pw-> pw_name, 1 )); | 178 | fail |= ( ::setenv ( "LOGNAME", pw-> pw_name, 1 )); |
173 | fail |= ( ::setenv ( "PATH", ( pw-> pw_uid ? DEFAULT_LOGIN_PATH : DEFAULT_ROOT_LOGIN_PATH ), 1 )); | 179 | fail |= ( ::setenv ( "PATH", ( pw-> pw_uid ? DEFAULT_LOGIN_PATH : DEFAULT_ROOT_LOGIN_PATH ), 1 )); |
174 | 180 | ||
175 | return !fail; | 181 | return !fail; |
176 | } | 182 | } |
177 | 183 | ||
178 | bool LoginApplication::login ( ) | 184 | bool LoginApplication::login ( ) |
179 | { | 185 | { |
180 | char *opie = ::getenv ( "OPIEDIR" ); | 186 | execUserScript ( "HOME", ".opie-session" ); |
181 | char *arg = new char [::strlen ( opie ) + 8 + 1]; | 187 | execUserScript ( "OPIEDIR", "share/opie-login/opie-session" ); |
188 | execUserScript ( "OPIEDIR", "bin/qpe" ); | ||
182 | 189 | ||
183 | ::strcpy ( arg, opie ); | 190 | qWarning ( "failed to start an Opie session" ); |
184 | ::strcat ( arg, "/bin/qpe" ); | 191 | return false; |
192 | } | ||
185 | 193 | ||
186 | // start qpe via a login shell | 194 | void LoginApplication::logout ( ) |
187 | ::execl ( "/bin/sh", "-sh", "-c", arg, 0 ); | 195 | { |
196 | // we are now root again - try to run the post-session script | ||
197 | if ( !runRootScript ( "OPIEDIR", "share/opie-login/post-session" )) | ||
198 | qWarning ( "failed to run $OPIEDIR/scripts/post-session" ); | ||
199 | } | ||
188 | 200 | ||
189 | return false; | 201 | |
202 | static char *buildarg ( const char *base, const char *script ) | ||
203 | { | ||
204 | const char *dir = base ? ::getenv ( base ) : "/"; | ||
205 | char *arg = new char [::strlen ( dir ) + ::strlen ( script ) + 2]; | ||
206 | |||
207 | ::strcpy ( arg, dir ); | ||
208 | ::strcat ( arg, "/" ); | ||
209 | ::strcat ( arg, script ); | ||
210 | |||
211 | return arg; | ||
212 | } | ||
213 | |||
214 | bool LoginApplication::runRootScript ( const char *base, const char *script, const char *param ) | ||
215 | { | ||
216 | bool res = false; | ||
217 | char *arg = buildarg ( base, script ); | ||
218 | |||
219 | struct stat st; | ||
220 | if (( ::stat ( arg, &st ) == 0 ) && ( st. st_uid == 0 )) { | ||
221 | pid_t child = ::fork ( ); | ||
222 | |||
223 | if ( child == 0 ) { | ||
224 | ::execl ( "/bin/sh", "-sh", arg, param, 0 ); | ||
225 | ::_exit ( -1 ); | ||
226 | } | ||
227 | else if ( child > 0 ) { | ||
228 | int status = 0; | ||
229 | |||
230 | while ( ::waitpid ( child, &status, 0 ) < 0 ) { } | ||
231 | res = ( WIFEXITED( status )) && ( WEXITSTATUS( status ) == 0 ); | ||
232 | } | ||
233 | } | ||
234 | |||
235 | delete [] arg; | ||
236 | return res; | ||
237 | } | ||
238 | |||
239 | void LoginApplication::execUserScript ( const char *base, const char *script ) | ||
240 | { | ||
241 | char *arg = buildarg ( base, script ); | ||
242 | |||
243 | struct stat st; | ||
244 | if ( ::stat ( arg, &st ) == 0 ) { | ||
245 | if ( st. st_mode & S_IXUSR ) | ||
246 | ::execl ( "/bin/sh", "-sh", "-c", arg, 0 ); | ||
247 | else | ||
248 | ::execl ( "/bin/sh", "-sh", arg, 0 ); | ||
249 | } | ||
190 | } | 250 | } |
191 | 251 | ||
192 | const char *LoginApplication::loginAs ( ) | 252 | const char *LoginApplication::loginAs ( ) |
193 | { | 253 | { |
194 | return s_username; | 254 | return s_username; |
195 | } | 255 | } |
196 | 256 | ||
197 | void LoginApplication::setLoginAs ( const char *name ) | 257 | void LoginApplication::setLoginAs ( const char *name ) |
198 | { | 258 | { |
199 | s_username = name; | 259 | s_username = name; |
200 | } | 260 | } |
201 | 261 | ||