Created
October 14, 2021 12:22
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Force accept a RADIUS user, using FreeRADIUS and a custom module (UNLANG).
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| # | |
| # /etc/freeradius/policy.d/force_accept | |
| # | |
| # Force accept a user. | |
| # | |
| # Two scenarios: | |
| # - the user does NOT exist in the database => trigger FORCE-ACCEPT-USERNAME-NOT-FOUND | |
| # - the user does exist but password is incorrect => trigger FORCE-ACCEPT-PASSWORD-INCORRECT | |
| # | |
| # This can be implemented with two modules, called at different sections in the FreeRADIUS sequence. | |
| # (This may also be implemented with a single module for refactoring concern.) | |
| # | |
| force_accept_username_not_found { | |
| # | |
| # MANDATORY: set Auth-Type to Accept. | |
| # Optional: set Tmp-String-0 for logging purpose (used in radiusd.conf:msg_goodpass). | |
| # | |
| update control { | |
| &Auth-Type := Accept | |
| &Tmp-String-0 := "FORCE-ACCEPT-USERNAME-NOT-FOUND" | |
| } | |
| # | |
| # Optional: add some attributes for the NAS. | |
| # | |
| update reply { | |
| &Cisco-AVPair += "ip:vrf-id=FORCE-ACCEPT-USERNAME-NOT-FOUND-VRF" | |
| &Cisco-AVPair += "ip:addr-pool=FORCE-ACCEPT-USERNAME-NOT-FOUND-POOL" | |
| &Cisco-AVPair += "ip:ip-unnumbered=Loopback0" | |
| } | |
| # | |
| # Optional: tell we updated some attributes (good practice). | |
| # | |
| updated | |
| } | |
| force_accept_password_incorrect { | |
| # | |
| # Optional: set Auth-Type to Accept (for refactoring concern if you prefer a single module). | |
| # Optional: set Tmp-String-0 for logging purpose (used in radiusd.conf:msg_goodpass). | |
| # | |
| update control { | |
| # &Auth-Type := Accept | |
| &Tmp-String-0 := "FORCE-ACCEPT-PASSWORD-INCORRECT" | |
| } | |
| # | |
| # RADIUS attributes from radreply are fetched BEFORE the authentication checking, | |
| # so it may be needed to remove them and (optionally) to add some attributes for the NAS. | |
| # | |
| update reply { | |
| # Remove | |
| &Framed-IP-Address !* ANY | |
| &Framed-IP-Netmask !* ANY | |
| &Cisco-AVPair !* ANY | |
| # Add | |
| &Cisco-AVPair += "ip:vrf-id=FORCE-ACCEPT-PASSWORD-INCORRECT-VRF" | |
| &Cisco-AVPair += "ip:addr-pool=FORCE-ACCEPT-PASSWORD-INCORRECT-POOL" | |
| &Cisco-AVPair += "ip:ip-unnumbered=Loopback1" | |
| } | |
| # | |
| # MANDATORY: "pap" and "chap" modules need "ok" status to be returned. | |
| # | |
| ok | |
| } |
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