Bug ID 633587: UI mode required if session created before HTTP

Last Modified: Nov 07, 2022

Bug Tracker

Affected Product:  See more info
BIG-IP APM(all modules)

Known Affected Versions:
13.0.0, 13.0.0 HF1, 13.0.0 HF2, 13.0.0 HF3, 13.0.1, 13.1.0, 13.1.0.1, 13.1.0.2, 13.1.0.3, 13.1.0.4, 13.1.0.5, 13.1.0.6, 13.1.0.7, 13.1.0.8, 13.1.1, 13.1.1.2, 13.1.1.3, 13.1.1.4, 13.1.1.5, 13.1.3, 13.1.3.1, 13.1.3.2, 13.1.3.3, 13.1.3.4, 13.1.3.5, 13.1.3.6, 13.1.4, 13.1.4.1, 13.1.5, 13.1.5.1, 14.0.0, 14.0.0.1, 14.0.0.2, 14.0.0.3, 14.0.0.4, 14.0.0.5, 14.0.1, 14.0.1.1

Opened: Dec 15, 2016
Severity: 4-Minor

Symptoms

When using an "ACCESS::session create" in an iRule event that fires on events prior to the HTTP filter, the command will not create the uimode session variable. The ACCESS filter requires the uimode to be present, so the end-user will receive a reset and see log messages in /var/log/apm: Dec 13 15:47:24 slot3/jimvicg2mgmt err tmm2[27655]: 01490514:3: (null):Common:00000000: Access encountered error: ERR_VAL. File: ../modules/hudfilter/access/access.c, Function: access_process_state_client_enforce_session, Line: 6867 Dec 13 15:47:24 slot3/jimvicg2mgmt err tmm2[27655]: 01490514:3: (null):Common:00000000: Access encountered error: ERR_VAL. File: ../modules/hudfilter/access/access.c, Function: hud_access_handler, Line: 2628

Impact

End-users receive resets.

Conditions

An iRule that creates an access session prior to HTTP. For example: when CLIENT_ACCEPTED { if { [ACCESS::session exists] } { log local0. "Found Access Session" } else { ACCESS::session create } }

Workaround

Set the "session.ui.mode" session variable to "0" when creating the session: when CLIENT_ACCEPTED { if { [ACCESS::session exists] } { log local0. "Found Access Session" } else { ACCESS::session create ACCESS::session data set session.ui.mode "0" } }

Fix Information

None

Behavior Change