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f343ab34b0
This also breaks table layout in plain text (but fixes it in markdown output). For mgmt.pool.Add put driver in a argument, as it makes more sense to use that while writing a policy.
168 lines
14 KiB
Markdown
168 lines
14 KiB
Markdown
---
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layout: doc-full
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title: Management API
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permalink: /doc/mgmt1/
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---
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# Management API
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*(This page is the current draft of the proposal. It is not implemented yet.)*
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The API should be implemented as a set of qrexec calls. This is to make it easy
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to set the policy using current mechanism.
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## The calls
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| call | dest | argument | inside | return | note |
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| ------------------------------------- | --------- | --------- | ----------------------------------------- | --------------------------------------------------------- | ---- |
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| `mgmt.vmclass.List` | `dom0` | - | - | `<class>\n` |
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| `mgmt.vm.List` | `dom0|<vm>` | - | - | `<name> class=<class> state=<state>\n` |
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| `mgmt.vm.Create.<class>` | `dom0` | template | `name=<name> label=<label>` | - |
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| `mgmt.vm.CreateInPool.<class>` | `dom0` | template | `name=<name> label=<label> pool=<pool>` | - |
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| `mgmt.vm.CreateTemplate` | `dom0` | name | `root.img` | - |
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| `mgmt.vm.Clone` | vm | - | `name=<name>` | - |
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| `mgmt.vm.Remove` | vm | - | - | - |
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| `mgmt.label.List` | `dom0` | - | - | `<property>\n` |
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| `mgmt.label.Create` | `dom0` | label | `0xRRGGBB` | - |
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| `mgmt.label.Get` | `dom0` | label | - | `0xRRGGBB` |
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| `mgmt.label.Remove` | `dom0` | label | - | - |
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| `mgmt.property.List` | `dom0` | - | - | `<property>\n` |
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| `mgmt.property.Get` | `dom0` | property | - | `default={yes|no} type={str|int|bool|vm|label} <value>` |
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| `mgmt.property.Help` | `dom0` | property | - | `help` |
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| `mgmt.property.HelpRst` | `dom0` | property | - | `help.rst` |
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| `mgmt.property.Reset` | `dom0` | property | - | - |
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| `mgmt.property.Set` | `dom0` | property | value | - |
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| `mgmt.vm.property.List` | vm | - | - | `<property>\n` |
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| `mgmt.vm.property.Get` | vm | property | - | `default={yes|no} <value>` |
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| `mgmt.vm.property.Help` | vm | property | - | `help` |
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| `mgmt.vm.property.HelpRst` | vm | property | - | `help.rst` |
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| `mgmt.vm.property.Reset` | vm | property | - | - |
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| `mgmt.vm.property.Set` | vm | property | value | - |
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| `mgmt.vm.feature.List` | vm | - | - | `<feature>\n` |
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| `mgmt.vm.feature.Get` | vm | feature | - | value |
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| `mgmt.vm.feature.CheckWithTemplate` | vm | feature | - | value |
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| `mgmt.vm.feature.Remove` | vm | feature | - | - |
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| `mgmt.vm.feature.Set` | vm | feature | value | - |
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| `mgmt.vm.tag.List` | vm | tag | - | `<tag>\n` |
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| `mgmt.vm.tag.Get` | vm | tag | - | `0` or `1` | retcode? |
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| `mgmt.vm.tag.Remove` | vm | tag | - | - |
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| `mgmt.vm.tag.Set` | vm | tag | - | - |
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| `mgmt.vm.firewall.Get` | vm | position | - | `<rule id> <rule>\n` |
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| `mgmt.vm.firewall.InsertRule` | vm | position | rule | rule id |
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| `mgmt.vm.firewall.RemoveRule` | vm | rule id | - | - |
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| `mgmt.vm.firewall.Flush` | vm | - | - | - |
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| `mgmt.vm.device.<class>.Attach` | vm | device | - | - |
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| `mgmt.vm.device.<class>.Detach` | vm | device | - | - |
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| `mgmt.vm.device.<class>.List` | vm | - | - | `<device>\n` |
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| `mgmt.vm.device.<class>.Available` | vm | - | - | `<device>\n` |
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| `mgmt.vm.microphone.Attach` | vm | - | - | - |
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| `mgmt.vm.microphone.Detach` | vm | - | - | - |
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| `mgmt.pool.List` | `dom0` | - | - | `<pool>\n` |
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| `mgmt.pool.ListDrivers` | `dom0` | - | - | `<pool-driver> <property> ...\n` | Properties allowed in `mgmt.pool.Add`
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| `mgmt.pool.Info` | `dom0` | pool | - | `<property>=<value>\n` |
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| `mgmt.pool.Add` | `dom0` | driver | `<property>=<value>\n` | - |
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| `mgmt.pool.Remove` | `dom0` | pool | - | - |
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| `mgmt.pool.volume.List` | `dom0` | pool | - | volume id |
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| `mgmt.pool.volume.Info` | `dom0` | pool | vid | `<property>=<value>\n` |
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| `mgmt.pool.volume.ListSnapshots` | `dom0` | pool | vid | `<snapshot>\n` |
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| `mgmt.pool.volume.Snapshot` | `dom0` | pool | vid | snapshot |
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| `mgmt.pool.volume.Revert` | `dom0` | pool | `<vid> <snapshot>` | - |
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| `mgmt.pool.volume.Resize` | `dom0` | pool | `<vid> <size_in_bytes>` | - |
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| `mgmt.vm.volume.List` | vm | - | - | `<volume>\n` | `<volume>` is per-VM volume name, `<vid>` is pool-unique volume id
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| `mgmt.vm.volume.Info` | vm | volume | - | `<property>=<value>\n` |
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| `mgmt.vm.volume.ListSnapshots` | vm | volume | - | snapshot | duplicate of `mgmt.pool.volume.`, but with other call params |
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| `mgmt.vm.volume.Snapshot` | vm | volume | - | snapshot | id. |
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| `mgmt.vm.volume.Revert` | vm | volume | snapshot | - | id. |
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| `mgmt.vm.volume.Resize` | vm | volume | size_in_bytes | - | id. |
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| `mgmt.vm.Start` | vm | - | - | - |
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| `mgmt.vm.Shutdown` | vm | - | - | - |
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| `mgmt.vm.Pause` | vm | - | - | - |
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| `mgmt.vm.Unpause` | vm | - | - | - |
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| `mgmt.vm.Kill` | vm | - | - | - |
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| `mgmt.backup.Execute` | `dom0` | config i | - | - | config in `/etc/qubes/backup/<id>.conf` |
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| `mgmt.backup.Info` | `dom0` | ? | content? | ? |
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| `mgmt.backup.Restore` | `dom0` | ? | content | ? |
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Volume properties:
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- `pool`
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- `vid`
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- `size`
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- `usage`
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- `rw`
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- `internal`
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- `source`
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- `save_on_stop`
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- `snap_on_start`
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## Returned messages
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First byte of a message is a message type. This is 8 bit non-zero integer.
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Values start at 0x30 (48, `'0'`, zero digit in ASCII) for readability in hexdump.
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Next byte must be 0x00 (a separator).
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This alternatively can be thought of as zero-terminated string containing
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single ASCII digit.
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### OK (0)
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```
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30 00 <content>
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```
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Server will close the connection after delivering single message.
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### EVENT (1)
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```
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31 00 <subject> 00 <event> 00 ( <key> 00 <value> 00 )* 00
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```
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Events are returned as stream of messages in selected API calls. Normally server
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will not close the connection.
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A method yielding events will not ever return a `OK` or `EXCEPTION` message.
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### EXCEPTION (2)
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```
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32 00 <type> 00 ( <traceback> )? 00 <format string> 00 ( <field> 00 )*
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```
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Server will close the connection.
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Traceback may be empty, can be enabled server-side as part of debug mode.
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Delimiting zero-byte is always present.
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Fields are should substituted into `%`-style format string, possibly after
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client-side translation, to form final message to be displayed unto user. Server
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does not by itself support translation.
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## Tags
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- `created-by-<vm>`
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- `managed-by-<vm>`
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- `backup-<id>`
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## General notes
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- there is no provision for `qvm-run`, but there already exists `qubes.VMShell` call
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## TODO
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- something to configure/update policy
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- notifications
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- how to constrain the events?
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- how to pass the parameters? maybe XML, since this is trusted anyway and
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parser may be complicated
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- how to constrain the possible values for `mgmt.vm.property.Set` etc, like
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"you can change `netvm`, but you have to pick from this set"; this currently
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can be done by writing an extension
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- a call for executing `*.desktop` file from `/usr/share/applications`, for use
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with appmenus without giving access to `qubes.VMShell`; currently this can be
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done by writing custom qrexec calls
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- maybe some generator for `.desktop` for appmenus, which would wrap calls in
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`qrexec-client-vm`
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<!-- vim: set ts=4 sts=4 sw=4 et : -->
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