Merge ~kzapalowicz/snappy-hwe-snaps/+git/bluez:feature/use-uhid into ~snappy-hwe-team/snappy-hwe-snaps/+git/bluez:master

[Konrad Zapałowicz]

Use uhid interface of snapd.

The HoG [HID over GATT] Bluetooth profile interacts with the HID
subsystem through the UHID driver. The HoG traffic is filtered-out
from the other LE traffic in userspace and then injected back to the
kernel. To handle this new traffic a new module called uHID has been
created.

Now, without the access to /dev/uhid it is not possible to use LE (a.k.a Smart) HID devices (keyboards, mice) with Core systems.

This commit makes sure that the bluez snap connects to the UHID slot
of snapd so that UHID can be used.

Fixes: https://bugs.launchpad.net/snappy-hwe-snaps/+bug/1635495

Use uhid interface of snapd.

The HoG [HID over GATT] Bluetooth profile interacts with the HID
subsystem through the UHID driver. The HoG traffic is filtered-out
from the other LE traffic in userspace and then injected back to the
kernel. To handle this new traffic a new module called uHID has been
created.

Now, without the access to /dev/uhid it is not possible to use LE (a.k.a Smart) HID devices (keyboards, mice) with Core systems.

This commit makes sure that the bluez snap connects to the UHID slot
of snapd so that UHID can be used.

Fixes: https://bugs.launchpad.net/snappy-hwe-snaps/+bug/1635495

Fixes: https://bugs.launchpad.net/snappy-hwe-snaps/+bug/1635495

[System Enablement Bot (system-enablement-ci-bot)]

FAILED: Continuous integration, rev:3e4e8e3f39334101759bdd8efda83bde1ac825b0
https://jenkins.canonical.com/system-enablement/job/generic-build-snap/678/
Executed test runs:
    FAILURE: https://jenkins.canonical.com/system-enablement/job/generic-run-snap-spread-tests/394/console
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review: Needs Fixing (continuous-integration)

[System Enablement Bot (system-enablement-ci-bot)]

FAILED: Continuous integration, rev:3e4e8e3f39334101759bdd8efda83bde1ac825b0
https://jenkins.canonical.com/system-enablement/job/generic-build-snap/679/
Executed test runs:
    FAILURE: https://jenkins.canonical.com/system-enablement/job/generic-run-snap-spread-tests/395/console
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review: Needs Fixing (continuous-integration)

[Simon Fels (morphis)]

This also needs an update of the spread test to verify connection of the plug and an update to the snap-declaration in the store once a new revision is pushed.

review: Needs Fixing

[Jim Hodapp (jhodapp)]

I'd like to see a better description of this change as to exactly why this is needed.

review: Needs Information

[System Enablement Bot (system-enablement-ci-bot)]

FAILED: Continuous integration, rev:3e4e8e3f39334101759bdd8efda83bde1ac825b0
https://jenkins.canonical.com/system-enablement/job/generic-build-snap/879/
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review: Needs Fixing (continuous-integration)

[System Enablement Bot (system-enablement-ci-bot)]

FAILED: Continuous integration, rev:0358b739074e5774c2522662de55d25ac538351c
https://jenkins.canonical.com/system-enablement/job/generic-build-snap/880/
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review: Needs Fixing (continuous-integration)

[Jim Hodapp (jhodapp)]

LGTM

review: Approve

[System Enablement Bot (system-enablement-ci-bot)]

FAILED: Continuous integration, rev:0358b739074e5774c2522662de55d25ac538351c
https://jenkins.canonical.com/system-enablement/job/generic-build-snap/882/
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review: Needs Fixing (continuous-integration)

[System Enablement Bot (system-enablement-ci-bot)]

FAILED: Continuous integration, rev:8a01ec1d46aca16d84f664a777faf74ba473f4f1
https://jenkins.canonical.com/system-enablement/job/generic-build-snap/881/
Executed test runs:
    FAILURE: https://jenkins.canonical.com/system-enablement/job/generic-run-snap-spread-tests/589/console
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review: Needs Fixing (continuous-integration)

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FAILED: Continuous integration, rev:8a01ec1d46aca16d84f664a777faf74ba473f4f1
https://jenkins.canonical.com/system-enablement/job/generic-build-snap/883/
Executed test runs:
    FAILURE: https://jenkins.canonical.com/system-enablement/job/generic-run-snap-spread-tests/590/console
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review: Needs Fixing (continuous-integration)

[Simon Fels (morphis)]

LGTM

review: Approve

[System Enablement Bot (system-enablement-ci-bot)]

FAILED: Continuous integration, rev:8a01ec1d46aca16d84f664a777faf74ba473f4f1
https://jenkins.canonical.com/system-enablement/job/generic-build-snap/908/
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FAILED: Continuous integration, rev:8a01ec1d46aca16d84f664a777faf74ba473f4f1
https://jenkins.canonical.com/system-enablement/job/generic-build-snap/922/
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[System Enablement Bot (system-enablement-ci-bot)]

FAILED: Continuous integration, rev:d1aea280899be3961db74b1f4eebf91856619240
https://jenkins.canonical.com/system-enablement/job/generic-build-snap/924/
Executed test runs:
    FAILURE: https://jenkins.canonical.com/system-enablement/job/generic-run-snap-spread-tests/614/console
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review: Needs Fixing (continuous-integration)

[System Enablement Bot (system-enablement-ci-bot)]

FAILED: Continuous integration, rev:d1aea280899be3961db74b1f4eebf91856619240
https://jenkins.canonical.com/system-enablement/job/generic-build-snap/923/
Executed test runs:
    FAILURE: https://jenkins.canonical.com/system-enablement/job/generic-run-snap-spread-tests/613/console
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review: Needs Fixing (continuous-integration)

[System Enablement Bot (system-enablement-ci-bot)]

FAILED: Continuous integration, rev:363e49ea95a4e89c8bf0af4398c0e1a9ab0c29dd
https://jenkins.canonical.com/system-enablement/job/generic-build-snap/928/
Executed test runs:
    FAILURE: https://jenkins.canonical.com/system-enablement/job/generic-run-snap-spread-tests/617/console
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review: Needs Fixing (continuous-integration)

[System Enablement Bot (system-enablement-ci-bot)]

FAILED: Continuous integration, rev:363e49ea95a4e89c8bf0af4398c0e1a9ab0c29dd
https://jenkins.canonical.com/system-enablement/job/generic-build-snap/930/
Executed test runs:
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review: Needs Fixing (continuous-integration)

[System Enablement Bot (system-enablement-ci-bot)]

FAILED: Continuous integration, rev:363e49ea95a4e89c8bf0af4398c0e1a9ab0c29dd
https://jenkins.canonical.com/system-enablement/job/generic-build-snap/932/
Executed test runs:
    FAILURE: https://jenkins.canonical.com/system-enablement/job/generic-run-snap-spread-tests/618/console
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review: Needs Fixing (continuous-integration)

[System Enablement Bot (system-enablement-ci-bot)]

FAILED: Continuous integration, rev:363e49ea95a4e89c8bf0af4398c0e1a9ab0c29dd
https://jenkins.canonical.com/system-enablement/job/generic-build-snap/931/
Executed test runs:
    FAILURE: https://jenkins.canonical.com/system-enablement/job/generic-run-snap-spread-tests/619/console
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[System Enablement Bot (system-enablement-ci-bot)]

FAILED: Continuous integration, rev:363e49ea95a4e89c8bf0af4398c0e1a9ab0c29dd
https://jenkins.canonical.com/system-enablement/job/generic-build-snap/933/
Executed test runs:
    FAILURE: https://jenkins.canonical.com/system-enablement/job/generic-run-snap-spread-tests/620/console
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review: Needs Fixing (continuous-integration)

[System Enablement Bot (system-enablement-ci-bot)]

FAILED: Continuous integration, rev:e596de2e6819235b1f52708ddb325317a6ef7b10
https://jenkins.canonical.com/system-enablement/job/generic-build-snap/934/
Executed test runs:
    FAILURE: https://jenkins.canonical.com/system-enablement/job/generic-run-snap-spread-tests/621/console
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[System Enablement Bot (system-enablement-ci-bot)]

FAILED: Continuous integration, rev:e596de2e6819235b1f52708ddb325317a6ef7b10
https://jenkins.canonical.com/system-enablement/job/generic-build-snap/935/
Executed test runs:
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review: Needs Fixing (continuous-integration)

[System Enablement Bot (system-enablement-ci-bot)]

FAILED: Continuous integration, rev:edee830d5992dce7ce161ec168c4d69024541101
https://jenkins.canonical.com/system-enablement/job/generic-build-snap/937/
Executed test runs:
    FAILURE: https://jenkins.canonical.com/system-enablement/job/generic-run-snap-spread-tests/623/console
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review: Needs Fixing (continuous-integration)

[System Enablement Bot (system-enablement-ci-bot)]

FAILED: Continuous integration, rev:332540131eea8ce6b8a37227b8821f91624dccad
https://jenkins.canonical.com/system-enablement/job/generic-build-snap/938/
Executed test runs:
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[System Enablement Bot (system-enablement-ci-bot)]

FAILED: Continuous integration, rev:332540131eea8ce6b8a37227b8821f91624dccad
https://jenkins.canonical.com/system-enablement/job/generic-build-snap/939/
Executed test runs:
    FAILURE: https://jenkins.canonical.com/system-enablement/job/generic-run-snap-spread-tests/625/console
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review: Needs Fixing (continuous-integration)

[System Enablement Bot (system-enablement-ci-bot)]

FAILED: Continuous integration, rev:f1fcdf2fdf1b4de4268990543e2e3b667aabb22e
https://jenkins.canonical.com/system-enablement/job/generic-build-snap/940/
Executed test runs:
    FAILURE: https://jenkins.canonical.com/system-enablement/job/generic-run-snap-spread-tests/626/console
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FAILED: Continuous integration, rev:f1fcdf2fdf1b4de4268990543e2e3b667aabb22e
https://jenkins.canonical.com/system-enablement/job/generic-build-snap/941/
Executed test runs:
    FAILURE: https://jenkins.canonical.com/system-enablement/job/generic-run-snap-spread-tests/627/console
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FAILED: Continuous integration, rev:f1fcdf2fdf1b4de4268990543e2e3b667aabb22e
https://jenkins.canonical.com/system-enablement/job/generic-build-snap/953/
Executed test runs:
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[System Enablement Bot (system-enablement-ci-bot)]

FAILED: Continuous integration, rev:f1fcdf2fdf1b4de4268990543e2e3b667aabb22e
https://jenkins.canonical.com/system-enablement/job/generic-build-snap/954/
Executed test runs:
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FAILED: Continuous integration, rev:f1fcdf2fdf1b4de4268990543e2e3b667aabb22e
https://jenkins.canonical.com/system-enablement/job/generic-build-snap/955/
Executed test runs:
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FAILED: Continuous integration, rev:f1fcdf2fdf1b4de4268990543e2e3b667aabb22e
https://jenkins.canonical.com/system-enablement/job/generic-build-snap/988/
Executed test runs:
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FAILED: Continuous integration, rev:f1fcdf2fdf1b4de4268990543e2e3b667aabb22e
https://jenkins.canonical.com/system-enablement/job/generic-build-snap/1007/
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FAILED: Continuous integration, rev:f1fcdf2fdf1b4de4268990543e2e3b667aabb22e
https://jenkins.canonical.com/system-enablement/job/generic-build-snap/1013/
Executed test runs:
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[System Enablement Bot (system-enablement-ci-bot)]

FAILED: Continuous integration, rev:b6ee8394d8e7ee1d516cc7e39183079a2a2f2b7d
https://jenkins.canonical.com/system-enablement/job/generic-build-snap/1066/
Executed test runs:
    FAILURE: https://jenkins.canonical.com/system-enablement/job/generic-build-snap-worker/67/console
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FAILED: Continuous integration, rev:b763720fc8f962c14567c5fbe4d0fc93585335c5
https://jenkins.canonical.com/system-enablement/job/generic-build-snap/1114/
Executed test runs:
    FAILURE: https://jenkins.canonical.com/system-enablement/job/generic-build-snap-worker/117/console
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FAILED: Continuous integration, rev:6c6fc5fe6a1dd074ebc9c2b957a2e813c635b35d
https://jenkins.canonical.com/system-enablement/job/generic-build-snap/1288/
Executed test runs:
    FAILURE: https://jenkins.canonical.com/system-enablement/job/generic-build-snap-worker/447/console
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    FAILURE: https://jenkins.canonical.com/system-enablement/job/generic-test-snap/1098/console
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review: Needs Fixing (continuous-integration)

[Simon Fels (morphis)]

The problem with the failing CI here simply is that when the bluez snap is download from the store and the snap-declaration assertion is fetched with it the uhid plug doesn't exist and therefor snapd can't auto connect it. The subsequent --dangerous install of the CI built .snap doesn't trigger the auto-connection as only signed snaps from the store will get those.

Its fine to escape for this by adding a

$ snap connect bluez:uhid

after the snap install --dangerous command in tests/lib/prepare-all.sh

[System Enablement Bot (system-enablement-ci-bot)]

PASSED: Continuous integration, rev:fbdeac984566c9e826d5c211b9d42d3c2c6b0eaa
https://jenkins.canonical.com/system-enablement/job/generic-build-snap/1333/
Executed test runs:
    SUCCESS: https://jenkins.canonical.com/system-enablement/job/generic-build-snap-worker/522
    None: https://jenkins.canonical.com/system-enablement/job/generic-update-snap-mp/1241/console
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review: Approve (continuous-integration)

diff --git a/snapcraft.yaml b/snapcraft.yaml
index 68d01f7..fca7888 100644
--- a/snapcraft.yaml
+++ b/snapcraft.yaml
@@ -14,7 +14,7 @@ grade: stable
 apps:
   bluetoothctl:
     command: usr/bin/bluetoothctl
-    plugs: [client]
+    plugs: [client, uhid]
     aliases:
       - bluetoothctl
   obexctl:
@@ -26,6 +26,7 @@ apps:
     command: "usr/lib/bluetooth/bluetoothd -E"
     daemon: simple
     slots: [service]
+    plugs: [uhid]
   obex:
     command: "usr/lib/bluetooth/obexd"
     daemon: simple
diff --git a/tests/lib/utilities.sh b/tests/lib/utilities.sh
index ff2cef8..d2cc716 100644
--- a/tests/lib/utilities.sh
+++ b/tests/lib/utilities.sh
@@ -22,10 +22,11 @@ install_snap_under_test() {
 			snap install --$SNAP_CHANNEL $SNAP_NAME
 		fi
 	else
-        # Install first from store to avoid error when performing the connection
-        snap install $SNAP_NAME
+		# Install first from store to avoid error when performing the connection
+		snap install $SNAP_NAME
 		# Install prebuilt snap
 		snap install --dangerous ${PROJECT_PATH}/${SNAP_NAME}_*_${SNAP_ARCH}.snap
+		snap connect bluez:uhid :uhid
 		if [ -n "$SNAP_AUTO_ALIASES" ]; then
 			for alias in $SNAP_AUTO_ALIASES ; do
 				snap alias $SNAP_NAME $alias
diff --git a/tests/main/installation/task.yaml b/tests/main/installation/task.yaml
index 0fb2fb6..8b0fb36 100644
--- a/tests/main/installation/task.yaml
+++ b/tests/main/installation/task.yaml
@@ -6,3 +6,4 @@ execute: |
 
     # Ensure all necessary plugs/slots are connected
     snap interfaces | grep -Pzq "bluez:service +bluez:client"
+    snap interfaces | grep -Pzq ":uhid +bluez"