Hi all, I met a problem when using the pam_set_data()/pam_get_data() to pass data between PAM hooks. The two functions are ok when I tested my PAM module with a simple PAM-aware application, in which data (string type) can be exchanged between different PAM hooks. However, when I plug it in SSHD as a authentication module, the pam_get_data() said it can not get data from a given name, which is used to set data by pam_set_data(). I don't know what is wrong with PAM module. The simple PAM-aware application written by me is just a process and one thread, whereas SSHD forked several threads. So I guessed maybe the difference between them is that PAM module is loaded by different SSHD threads. This makes pam_get_data() in one of thread can not get data from pam_set_data() of another thread. For example, SSHD forked a thread1 to do authentication, which call the hook in PAM module, and set data by pam_set_data(). Then another thread, thread2, forked by SSHD wants to get that data by pam_get_data() before opening session. Since they owned different thread spaces, data can be passed from thread1 to thread2. I don't know whether my analysis is right. Maybe some one can share his/her brain with me. If above analysis is correct, what I can do to deal with it? Could anybody give me some advices? Thanks in advances. Best Regards, Ian _______________________________________________ Pam-list mailing list Pam-list@xxxxxxxxxx https://www.redhat.com/mailman/listinfo/pam-list
