void ManageSession(struct display *d)
{
static int pid = 0;
Display *dpy;
greet_user_rtn greet_stat;
#ifdef WITH_CONSOLE_KIT
char *ck_session_cookie = NULL;
#endif
WDMDebug("ManageSession %s\n", d->name);
(void)XSetIOErrorHandler(IOErrorHandler);
(void)XSetErrorHandler(ErrorHandler);
#ifndef HAS_SETPROCTITLE
SetTitle(d->name, (char *)0);
#else
setproctitle("%s", d->name);
#endif
/*
* Load system default Resources
*/
LoadXloginResources(d);
verify.version = 1;
greet.version = 1;
greet_stat = GreetUser(d, &dpy, &verify, &greet);
if (greet_stat == Greet_Success) {
clientPid = 0;
if (!Setjmp(abortSession)) {
(void)Signal(SIGTERM, catchTerm);
/*
* Start the clients, changing uid/groups
* setting up environment and running the session
*/
#ifdef WITH_CONSOLE_KIT
ck_session_cookie = open_ck_session(getpwnam(greet.name), d);
#endif
if (StartClient(&verify, d, &clientPid, greet.name, greet.password
#ifdef WITH_CONSOLE_KIT
, ck_session_cookie
#endif
)) {
WDMDebug("Client Started\n");
/*
* Wait for session to end,
*/
for (;;) {
if (d->pingInterval) {
if (!Setjmp(pingTime)) {
(void)Signal(SIGALRM, catchAlrm);
(void)alarm(d->pingInterval * 60);
pid = wait((waitType *) 0);
(void)alarm(0);
} else {
(void)alarm(0);
if (!PingServer(d, (Display *) NULL))
SessionPingFailed(d);
}
} else {
pid = wait((waitType *) 0);
}
if (pid == clientPid)
break;
}
} else {
WDMError("session start failed\n");
}
} else {
/*
* when terminating the session, nuke
* the child and then run the reset script
*/
AbortClient(clientPid);
}
}
#ifdef WITH_CONSOLE_KIT
if (ck_session_cookie != NULL) {
close_ck_session(ck_session_cookie);
free(ck_session_cookie);
}
#endif
/*
* run system-wide reset file
*/
WDMDebug("Source reset program %s\n", d->reset);
source(verify.systemEnviron, d->reset);
SessionExit(d, OBEYSESS_DISPLAY, TRUE);
}
greet_user_rtn GreetUser(struct display * d, Display ** dpy, struct verify_info * verify, struct greet_info * greet)
{
int flag;
int pid;
int code;
Save_d = d; /* hopefully, this is OK */
*dpy = XOpenDisplay(d->name); /* make sure we have the display */
/*
* Run the setup script - note this usually will not work when
* the server is grabbed, so we don't even bother trying.
*/
if (!d->grabServer)
SetupDisplay(d);
if (!*dpy) {
WDMError("Cannot reopen display %s for greet window\n", d->name);
exit(RESERVER_DISPLAY);
}
pid = InitGreet(d); /* fork and exec the external program */
for (;;) {
/*
* Greet user, requesting name/password
*/
code = Greet(d, greet);
WDMDebug("Greet greet done: %s, pwlen=%i\n", name, strlen(password));
if (code != 0) {
WDMDebug("Greet: exit code=%i, %s\n", code, exitArg);
if (wdmVerify || wdmRoot) {
flag = False;
if (Verify(d, greet, verify))
flag = True;
if (wdmRoot && (strcmp(greet->name, "root") != 0))
flag = False;
} else
flag = True;
if (flag == True) {
switch (code) {
case 2: /* reboot */
CloseGreet(pid);
WDMInfo("reboot(%s) by %s\n", exitArg, name);
system(wdmReboot);
SessionExit(d, UNMANAGE_DISPLAY, FALSE);
break;
case 3: /* halt */
CloseGreet(pid);
WDMInfo("halt(%s) by %s\n", exitArg, name);
system(wdmHalt);
SessionExit(d, UNMANAGE_DISPLAY, FALSE);
break;
case 4: /* exit */
CloseGreet(pid);
WDMDebug("UNMANAGE_DISPLAY\n");
WDMInfo("%s exit(%s) by %s\n", PACKAGE_NAME, exitArg, name);
#if 0
SessionExit(d, UNMANAGE_DISPLAY, FALSE);
#else
WDMDebug("Killing parent process %d\n", getppid());
kill(getppid(), SIGINT);
#endif
break;
}
} else {
kill(pid, SIGUSR1); /* Verify failed */
}
} else {
/*
* Verify user
*/
if ((!*greet->name) && *wdmDefaultUser) {
greet->name = wdmDefaultUser;
greet->password = wdmDefaultPasswd;
}
if (Verify(d, greet, verify))
break;
else
kill(pid, SIGUSR1); /* Verify failed */
}
}
DeleteXloginResources(d, *dpy);
CloseGreet(pid);
WDMDebug("Greet loop finished\n");
/*
* Run system-wide initialization file
*/
if (source(verify->systemEnviron, d->startup) != 0) {
WDMDebug("Startup program %s exited with non-zero status\n", d->startup);
SessionExit(d, OBEYSESS_DISPLAY, FALSE);
}
return Greet_Success;
}
/*ARGSUSED*/
static int
ignoreErrors (Display *dpy, XErrorEvent *event)
{
WDMDebug("ignoring error\n");
return 0;
}
static int InitGreet(struct display *d)
{
int pid;
WDMDebug("Greet display=%s\n", d->name);
pipe(pipe_filedes);
pid = fork();
if (pid == -1) { /* error */
WDMError("Greet cannot fork\n");
exit(RESERVER_DISPLAY);
}
if (pid == 0) { /* child */
char **env = NULL;
char *argv[20];
int argc = 1; /* argc = 0 is for command itself */
close(pipe_filedes[0]);
fcntl(pipe_filedes[1], F_SETFD, 0); /* Reset close-on-exec (just in case) */
env = (char **)systemEnv(d, (char *)NULL, FAKEHOME);
if (*wdmLocale)
env = WDMSetEnv(env, "LANG", wdmLocale);
if (*wdmCursorTheme)
env = WDMSetEnv(env, "XCURSOR_THEME", wdmCursorTheme);
if ((argv[0] = strrchr(wdmLogin, '/')) == NULL)
argv[0] = wdmLogin;
else
argv[0]++;
argv[argc++] = wstrconcat("-d", d->name);
if (*wdmWm)
argv[argc++] = wstrconcat("-w", wdmWm);
if (*wdmLogo)
argv[argc++] = wstrconcat("-l", wdmLogo);
if (*wdmHelpFile)
argv[argc++] = wstrconcat("-h", wdmHelpFile);
if (*wdmDefaultUser)
argv[argc++] = "-u";
if (*wdmBg)
argv[argc++] = wstrconcat("-b", wdmBg);
if (*wdmLoginConfig)
argv[argc++] = wstrconcat("-c", wdmLoginConfig);
if (wdmAnimations)
argv[argc++] = "-a";
if (wdmXineramaHead) {
argv[argc] = wmalloc(25); /* much more than length of 64bit integer
converted to string, but it still a hack */
sprintf(argv[argc++], "-x%i", wdmXineramaHead);
}
argv[argc] = wmalloc(25);
sprintf(argv[argc++], "-f%i", pipe_filedes[1]);
argv[argc++] = NULL;
execve(wdmLogin, argv, env);
WDMError("Greet cannot exec %s\n", wdmLogin);
exit(RESERVER_DISPLAY);
}
close(pipe_filedes[1]);
RegisterCloseOnFork(pipe_filedes[0]);
return pid;
}
static void serverPauseUsr1(int n)
{
WDMDebug("display manager paused til SIGUSR1\n");
++receivedUsr1;
Longjmp(pauseAbort, 1);
}