diff options
Diffstat (limited to 'hook-plugin/README.md')
| -rw-r--r-- | hook-plugin/README.md | 14 |
1 files changed, 7 insertions, 7 deletions
diff --git a/hook-plugin/README.md b/hook-plugin/README.md index 0472c7b..748f66f 100644 --- a/hook-plugin/README.md +++ b/hook-plugin/README.md @@ -6,8 +6,8 @@ Author: Fulup Ar Foll fulup@iot.bzh Date : August-2017 Functionalities: - - Execute a set of websocket RPC request again AGL binders to allow/deny access - - Keep websocket open in an idepandant thread on order to monitor event receive from AGL audio agent + - Execute a set of unix/ws RPC request again AGL binders to allow/deny access + - Keep websocket open in an idependant thread in order to monitor event received from AGL audio agent Installation - Alsaplugins are typically search in /usr/share/alsa-lib. Nevertheless a full path might be given @@ -41,12 +41,12 @@ pcm.MyNavigationHook { # Every Call should return OK in order PCM to open (default timeout 100ms) uri "ws://localhost:1234/api?token='audio-agent-token'" + ws-client="unix:/var/tmp/pol4a" request { # Request authorisation to write on navigation navigation-ctl { - api "pol4a" request "navigation-role" - release "navigation-role" + release "release-role" args "{'uid':'alsa-hook-navigation'}" } # subscribe to Audio Agent Event map them to signal @@ -69,9 +69,9 @@ pcm.MyNavigationHook { NOTE: -* Hook plugin is loaded by Alsa libasound within player context. It inherits client process attributes, as UID/GID or -the SMACK label on AGL. This smack label is tested by AGL security framework when requested a call on the audio-agent binder. -As a result the call will only succeed it the permission attached the application in Cynara matches. +* Hook plugin is loaded by Alsa libasound within client context. It inherits client process attributes, as UID/GID and +SMACK label when running on AGL. The smack label is control by AGL security framework. +As a result a control request succeeds only when client application permission match requested audio role inside Cynara security database. * Hook plugin keep a connection with the Audio-Agent until PCM is closed by the application. This connection allow the Audio-Agent to send events. eg: pause, quit, mute, ...
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