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Don't send message to any other child in child process.

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Signed-off-by: Bo Yang <boyang@novell.com>
This commit is contained in:
Bo Yang 2009-01-14 14:26:40 +08:00 committed by Jeremy Allison
parent 8c983af56d
commit 54325f7ed5
1 changed files with 30 additions and 0 deletions
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30
source3/winbindd/winbindd_dual.c
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@ -1202,7 +1202,29 @@ bool winbindd_reinit_after_fork(const char *logfilename)
}
TALLOC_FREE(cl->lockout_policy_event);
TALLOC_FREE(cl->machine_password_change_event);
/* Children should never be able to send
* each other messages, all meesages must
* go through the parent.
*/
cl->pid = (pid_t)0;
}
/*
* This is a little tricky, we don't want child
* to send MSG_WINBIND_ONLINE to idmap_child().
* If we are in the child of trusted domain or
* in the process created by fork_child_dc_connect().
* And the trusted domain cannot go online,
* fork_child_dc_connection() sends MSG_WINBIND_ONLINE
* periodically to idmap_child().
* look, fork_child_dc_connect() ---> getdcs() --->
* get_dc_name_via_netlogon() ---> cm_connect_netlogon()
* ---> init_dc_connection() ---> cm_open_connection --->
* set_domain_online(), here send MSG_WINBIND_ONLINE to
* idmap_child().
*/
cl = idmap_child();
cl->pid = (pid_t)0;
return true;
}
@ -1296,6 +1318,14 @@ static bool fork_domain_child(struct winbindd_child *child)
}
}
}
/*
* We are in idmap child, make sure that we set the
* check_online_event to bring primary domain online.
*/
if (child == idmap_child()) {
set_domain_online_request(primary_domain);
}
/* We might be in the idmap child...*/
if (child->domain && !(child->domain->internal) &&