pam_sm_open_session(3) on FreeBSD
The text 461ea0554c77, as FreeBSD 11.2-RELEASE, FreeBSD 11.1-RELEASE, FreeBSD 11.0-RELEASE, FreeBSD 10.4-RELEASE, FreeBSD 10.3-RELEASE, FreeBSD 10.2-RELEASE, FreeBSD 10.1-RELEASE shipped it.
service module implementation for pam_open_session