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Revision 1.4 / (download) - annotate - [select for diffs], Mon Nov 1 14:43:25 2021 UTC (2 years, 6 months ago) by ratchov
Branch: MAIN
CVS Tags: OPENBSD_7_5_BASE,
OPENBSD_7_5,
OPENBSD_7_4_BASE,
OPENBSD_7_4,
OPENBSD_7_3_BASE,
OPENBSD_7_3,
OPENBSD_7_2_BASE,
OPENBSD_7_2,
OPENBSD_7_1_BASE,
OPENBSD_7_1,
HEAD
Changes since 1.3: +4 -4 lines
Diff to previous 1.3 (colored)
Stop binding audio devices exposed by sndiod to physical devices This a shift towards a new model: clients connect to logical devices (created with -s option) then the server routes data to/from the underlying physical device (registered with -f option). The binding may be changed at run-time with the server.device control exposed by sndioctl(1). As audio devices exposed by sndiod(8) are not bound to fixed physical devices anymore, the physical audio device number component of sndio(7) descriptors was removed. fixes, help from and ok denis, edd
Revision 1.3 / (download) - annotate - [select for diffs], Wed Feb 26 13:53:58 2020 UTC (4 years, 2 months ago) by ratchov
Branch: MAIN
CVS Tags: OPENBSD_7_0_BASE,
OPENBSD_7_0,
OPENBSD_6_9_BASE,
OPENBSD_6_9,
OPENBSD_6_8_BASE,
OPENBSD_6_8,
OPENBSD_6_7_BASE,
OPENBSD_6_7
Changes since 1.2: +2 -1 lines
Diff to previous 1.2 (colored)
Add API to control audio device parameters exposed by sndiod. The API exposes controls of modern audio hardware and sndiod software volume knobs in a uniform way. Hardware knobs are exposed through sndiod. Multiple programs may use the controls at the same time without the need to continuously scan the controls. For now sndiod exposes only its own controls and the master output and input volumes of the underlying hardware (if any), i.e. those typically exposed by acpi volume keys. ok deraadt
Revision 1.2 / (download) - annotate - [select for diffs], Thu Jan 23 05:40:09 2020 UTC (4 years, 3 months ago) by ratchov
Branch: MAIN
Changes since 1.1: +3 -3 lines
Diff to previous 1.1 (colored)
When opening a device, loop over the alternate devices list in the worker process instead of the helper process. It is simpler this way and allows the worker to properly log which device is being used.
Revision 1.1 / (download) - annotate - [select for diffs], Sun Dec 20 11:38:33 2015 UTC (8 years, 5 months ago) by ratchov
Branch: MAIN
CVS Tags: OPENBSD_6_6_BASE,
OPENBSD_6_6,
OPENBSD_6_5_BASE,
OPENBSD_6_5,
OPENBSD_6_4_BASE,
OPENBSD_6_4,
OPENBSD_6_3_BASE,
OPENBSD_6_3,
OPENBSD_6_2_BASE,
OPENBSD_6_2,
OPENBSD_6_1_BASE,
OPENBSD_6_1,
OPENBSD_6_0_BASE,
OPENBSD_6_0,
OPENBSD_5_9_BASE,
OPENBSD_5_9
In case of a bug in sndiod, an attacker (a local user) could run arbitrary code as user _sndio, i.e. get a second uid. Mitigate the risk by implementing initial privilege separation as follows. Break sndiod in two processes: a chroot()ed "worker" process processing input, and a non-chroot()ed "helper" process opening devices and passing descriptors to the worker. With help from benno, claudio, semarie and gilles. ok benno, semarie and tb