apparmor profile is too restrictive and sabotages gpsfake

[Aron Cserkaszky]

gpsfake is a tool to replay gps data from a text file for testing, it is supplied with the gpsd-clients package and gpsfake and gpsd tries to communicate through a /dev/pts/* device, but apparmor blocks them

user@machine:~/gpsd_sim> gpsfake test.nmea -P 12947 -i
/usr/bin/gpsfake:21: DeprecationWarning: The distutils package is deprecated and slated for removal in Python 3.12. Use setuptools or check PEP 632 for potential alternatives
  from distutils import spawn
Processing test.nmea
gpsfake: log cycle of test.nmea begins.
gpsfake: line 1: $GPGGA,194546.127,5231.525,N,01323.391,E,1,12,1.0,0.0,M,0.0,M,,*6E?
gpsfake: line 2: $GPGSA,A,3,01,02,03,04,05,06,07,08,09,10,11,12,1.0,1.0,1.0*30?
gpsfake: line 3: $GPRMC,194546.127,A,5231.525,N,01323.391,E,2372.1,093.7,200220,000.0,W*40?
gpsfake: line 4: $GPGGA,194547.127,5231.456,N,01324.467,E,1,12,1.0,0.0,M,0.0,M,,*63?
gpsfake: line 5: $GPGSA,A,3,01,02,03,04,05,06,07,08,09,10,11,12,1.0,1.0,1.0*30? gpsd:ERROR: SER: device open of /dev/pts/8 failed: Permission denied - retrying read-only
gpsd:ERROR: SER: read-only device open of /dev/pts/8 failed: Permission denied
gpsd:ERROR: /dev/pts/8: device activation failed, freeing device.

gpsfake: line 6: $GPRMC,194547.127,A,5231.456,N,01324.467,E,3968.7,122.8,200220,000.0,W*4F?
gpsfake: line 7: $GPGGA,194548.127,5230.657,N,01325.713,E,1,12,1.0,0.0,M,0.0,M,,*6F?
gpsfake: line 8: $GPGSA,A,3,01,02,03,04,05,06,07,08,09,10,11,12,1.0,1.0,1.0*30?

user@machine:~> gpscsv localhost:12947
time,lat,lon,altHAE

syslog:
Aug 23 14:58:08 machine kernel: [415183.738526] audit: type=1400 audit(1692795488.630:20273): apparmor="DENIED" operation="open" class="file" profile="/usr/sbin/gpsd" name="/dev/pts/8" pid=1657911 comm="gpsd" requested_mask="r" denied_mask="r" fsuid=1000 ouid=1000
Aug 23 14:58:08 machine kernel: [415183.738534] audit: type=1400 audit(1692795488.630:20274): apparmor="DENIED" operation="open" class="file" profile="/usr/sbin/gpsd" name="/dev/pts/8" pid=1657911 comm="gpsd" requested_mask="r" denied_mask="r" fsuid=1000 ouid=1000

[Paride Legovini (paride)]

Hello Aron and thanks for this bug report. This looks like a duplicate of LP: #1894330, which has been fixed in Hirsute but not in Focal as far as I can tell. As you running Focal? Are you able to test if the bug is fixed in Jammy?

This may be a candidate for a SRU (https://wiki.ubuntu.com/StableReleaseUpdates) to Focal, but first we need to know if we're actually speaking of LP: #1894330. Thanks.

[Launchpad Janitor (janitor)]

[Expired for gpsd (Ubuntu) because there has been no activity for 60 days.]