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pve-qemu-qoup/debian/patches/extra/0003-monitor-refactor-set-expire_password-and-allow-VNC-d.patch
Fabian Ebner 4567474e95 update submodule and patches to 6.2.0 
Notable changes:
* bdrv_co_p{discard,readv,writev,write_zeroes} function signatures
  changed, to using int64_t for offsets/bytes and some still had int
  rather than BrdvRequestFlags for the flags.
* job_cancel_sync now has a force parameter. Commit messages in
  73895f3838cd7fdaf185cf1dbc47be58844a966f
  4cfb3f05627ad82af473e7f7ae113c3884cd04e3
  sound like using force=true makes more sense.
* Added 3 patches coming in via qemu-stable tag, most important one is
  to work around a librbd issue.
* Added another 3 patches from qemu-devel to fix issue leading to
  crash when live migrating with iothread.
* cluster_size calculation helper changed (see patch pve/0026).
* QAPI's if conditionals now use 'CONFIG_FOO' rather than
  'defined(CONFIG_FOO)'

Signed-off-by: Fabian Ebner <f.ebner@proxmox.com>
2022-02-15 14:03:07 +01:00

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From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: Stefan Reiter <s.reiter@proxmox.com>
Date: Wed, 25 Aug 2021 11:14:13 +0200
Subject: [PATCH] monitor: refactor set/expire_password and allow VNC display
id
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit
It is possible to specify more than one VNC server on the command line,
either with an explicit ID or the auto-generated ones à la "default",
"vnc2", "vnc3", ...
It is not possible to change the password on one of these extra VNC
displays though. Fix this by adding a "display" parameter to the
"set_password" and "expire_password" QMP and HMP commands.
For HMP, the display is specified using the "-d" value flag.
For QMP, the schema is updated to explicitly express the supported
variants of the commands with protocol-discriminated unions.
Suggested-by: Eric Blake <eblake@redhat.com>
Suggested-by: Markus Armbruster <armbru@redhat.com>
Signed-off-by: Stefan Reiter <s.reiter@proxmox.com>
Signed-off-by: Thomas Lamprecht <t.lamprecht@proxmox.com>
Signed-off-by: Fabian Ebner <f.ebner@proxmox.com>
---
hmp-commands.hx | 24 ++++---
monitor/hmp-cmds.c | 57 +++++++++++++++-
monitor/qmp-cmds.c | 62 ++++++-----------
qapi/ui.json | 165 ++++++++++++++++++++++++++++++++++++++-------
4 files changed, 231 insertions(+), 77 deletions(-)
diff --git a/hmp-commands.hx b/hmp-commands.hx
index 70a9136ac2..5efb47fc32 100644
--- a/hmp-commands.hx
+++ b/hmp-commands.hx
@@ -1514,33 +1514,35 @@ ERST
{
.name = "set_password",
- .args_type = "protocol:s,password:s,connected:s?",
- .params = "protocol password action-if-connected",
+ .args_type = "protocol:s,password:s,display:-dS,connected:s?",
+ .params = "protocol password [-d display] [action-if-connected]",
.help = "set spice/vnc password",
.cmd = hmp_set_password,
},
SRST
-``set_password [ vnc | spice ] password [ action-if-connected ]``
- Change spice/vnc password. *action-if-connected* specifies what
- should happen in case a connection is established: *fail* makes the
- password change fail. *disconnect* changes the password and
+``set_password [ vnc | spice ] password [ -d display ] [ action-if-connected ]``
+ Change spice/vnc password. *display* can be used with 'vnc' to specify
+ which display to set the password on. *action-if-connected* specifies
+ what should happen in case a connection is established: *fail* makes
+ the password change fail. *disconnect* changes the password and
disconnects the client. *keep* changes the password and keeps the
connection up. *keep* is the default.
ERST
{
.name = "expire_password",
- .args_type = "protocol:s,time:s",
- .params = "protocol time",
+ .args_type = "protocol:s,time:s,display:-dS",
+ .params = "protocol time [-d display]",
.help = "set spice/vnc password expire-time",
.cmd = hmp_expire_password,
},
SRST
-``expire_password [ vnc | spice ]`` *expire-time*
- Specify when a password for spice/vnc becomes
- invalid. *expire-time* accepts:
+``expire_password [ vnc | spice ] expire-time [ -d display ]``
+ Specify when a password for spice/vnc becomes invalid.
+ *display* behaves the same as in ``set_password``.
+ *expire-time* accepts:
``now``
Invalidate password instantly.
diff --git a/monitor/hmp-cmds.c b/monitor/hmp-cmds.c
index 9c91bf93e9..2e91ccb738 100644
--- a/monitor/hmp-cmds.c
+++ b/monitor/hmp-cmds.c
@@ -1384,10 +1384,41 @@ void hmp_set_password(Monitor *mon, const QDict *qdict)
{
const char *protocol = qdict_get_str(qdict, "protocol");
const char *password = qdict_get_str(qdict, "password");
+ const char *display = qdict_get_try_str(qdict, "display");
const char *connected = qdict_get_try_str(qdict, "connected");
Error *err = NULL;
+ DisplayProtocol proto;
- qmp_set_password(protocol, password, !!connected, connected, &err);
+ SetPasswordOptions opts = {
+ .password = g_strdup(password),
+ .u.vnc.display = NULL,
+ };
+
+ proto = qapi_enum_parse(&DisplayProtocol_lookup, protocol,
+ DISPLAY_PROTOCOL_VNC, &err);
+ if (err) {
+ hmp_handle_error(mon, err);
+ return;
+ }
+ opts.protocol = proto;
+
+ if (proto == DISPLAY_PROTOCOL_VNC) {
+ opts.u.vnc.has_display = !!display;
+ opts.u.vnc.display = g_strdup(display);
+ } else if (proto == DISPLAY_PROTOCOL_SPICE) {
+ opts.u.spice.has_connected = !!connected;
+ opts.u.spice.connected =
+ qapi_enum_parse(&SetPasswordAction_lookup, connected,
+ SET_PASSWORD_ACTION_KEEP, &err);
+ if (err) {
+ hmp_handle_error(mon, err);
+ return;
+ }
+ }
+
+ qmp_set_password(&opts, &err);
+ g_free(opts.password);
+ g_free(opts.u.vnc.display);
hmp_handle_error(mon, err);
}
@@ -1395,9 +1426,31 @@ void hmp_expire_password(Monitor *mon, const QDict *qdict)
{
const char *protocol = qdict_get_str(qdict, "protocol");
const char *whenstr = qdict_get_str(qdict, "time");
+ const char *display = qdict_get_try_str(qdict, "display");
Error *err = NULL;
+ DisplayProtocol proto;
- qmp_expire_password(protocol, whenstr, &err);
+ ExpirePasswordOptions opts = {
+ .time = g_strdup(whenstr),
+ .u.vnc.display = NULL,
+ };
+
+ proto = qapi_enum_parse(&DisplayProtocol_lookup, protocol,
+ DISPLAY_PROTOCOL_VNC, &err);
+ if (err) {
+ hmp_handle_error(mon, err);
+ return;
+ }
+ opts.protocol = proto;
+
+ if (proto == DISPLAY_PROTOCOL_VNC) {
+ opts.u.vnc.has_display = !!display;
+ opts.u.vnc.display = g_strdup(display);
+ }
+
+ qmp_expire_password(&opts, &err);
+ g_free(opts.time);
+ g_free(opts.u.vnc.display);
hmp_handle_error(mon, err);
}
diff --git a/monitor/qmp-cmds.c b/monitor/qmp-cmds.c
index 343353e27a..729ca7cceb 100644
--- a/monitor/qmp-cmds.c
+++ b/monitor/qmp-cmds.c
@@ -167,45 +167,30 @@ void qmp_system_wakeup(Error **errp)
qemu_system_wakeup_request(QEMU_WAKEUP_REASON_OTHER, errp);
}
-void qmp_set_password(const char *protocol, const char *password,
- bool has_connected, const char *connected, Error **errp)
+void qmp_set_password(SetPasswordOptions *opts, Error **errp)
{
- int disconnect_if_connected = 0;
- int fail_if_connected = 0;
- int rc;
+ bool disconnect_if_connected = false;
+ bool fail_if_connected = false;
+ int rc = 0;
- if (has_connected) {
- if (strcmp(connected, "fail") == 0) {
- fail_if_connected = 1;
- } else if (strcmp(connected, "disconnect") == 0) {
- disconnect_if_connected = 1;
- } else if (strcmp(connected, "keep") == 0) {
- /* nothing */
- } else {
- error_setg(errp, QERR_INVALID_PARAMETER, "connected");
- return;
- }
- }
-
- if (strcmp(protocol, "spice") == 0) {
+ if (opts->protocol == DISPLAY_PROTOCOL_SPICE) {
if (!qemu_using_spice(errp)) {
return;
}
- rc = qemu_spice.set_passwd(password, fail_if_connected,
+ if (opts->u.spice.has_connected) {
+ fail_if_connected =
+ opts->u.spice.connected == SET_PASSWORD_ACTION_FAIL;
+ disconnect_if_connected =
+ opts->u.spice.connected == SET_PASSWORD_ACTION_DISCONNECT;
+ }
+ rc = qemu_spice.set_passwd(opts->password, fail_if_connected,
disconnect_if_connected);
- } else if (strcmp(protocol, "vnc") == 0) {
- if (fail_if_connected || disconnect_if_connected) {
- /* vnc supports "connected=keep" only */
- error_setg(errp, QERR_INVALID_PARAMETER, "connected");
- return;
- }
+ } else if (opts->protocol == DISPLAY_PROTOCOL_VNC) {
/* Note that setting an empty password will not disable login through
* this interface. */
- rc = vnc_display_password(NULL, password);
- } else {
- error_setg(errp, QERR_INVALID_PARAMETER_VALUE, "protocol",
- "'vnc' or 'spice'");
- return;
+ rc = vnc_display_password(
+ opts->u.vnc.has_display ? opts->u.vnc.display : NULL,
+ opts->password);
}
if (rc != 0) {
@@ -213,11 +198,11 @@ void qmp_set_password(const char *protocol, const char *password,
}
}
-void qmp_expire_password(const char *protocol, const char *whenstr,
- Error **errp)
+void qmp_expire_password(ExpirePasswordOptions *opts, Error **errp)
{
time_t when;
int rc;
+ const char* whenstr = opts->time;
if (strcmp(whenstr, "now") == 0) {
when = 0;
@@ -229,17 +214,14 @@ void qmp_expire_password(const char *protocol, const char *whenstr,
when = strtoull(whenstr, NULL, 10);
}
- if (strcmp(protocol, "spice") == 0) {
+ if (opts->protocol == DISPLAY_PROTOCOL_SPICE) {
if (!qemu_using_spice(errp)) {
return;
}
rc = qemu_spice.set_pw_expire(when);
- } else if (strcmp(protocol, "vnc") == 0) {
- rc = vnc_display_pw_expire(NULL, when);
- } else {
- error_setg(errp, QERR_INVALID_PARAMETER_VALUE, "protocol",
- "'vnc' or 'spice'");
- return;
+ } else if (opts->protocol == DISPLAY_PROTOCOL_VNC) {
+ rc = vnc_display_pw_expire(
+ opts->u.vnc.has_display ? opts->u.vnc.display : NULL, when);
}
if (rc != 0) {
diff --git a/qapi/ui.json b/qapi/ui.json
index d7567ac866..4244c62c30 100644
--- a/qapi/ui.json
+++ b/qapi/ui.json
@@ -9,22 +9,23 @@
{ 'include': 'common.json' }
{ 'include': 'sockets.json' }
+##
+# @DisplayProtocol:
+#
+# Display protocols which support changing password options.
+#
+# Since: 6.2
+#
+##
+{ 'enum': 'DisplayProtocol',
+ 'data': [ { 'name': 'vnc', 'if': 'CONFIG_VNC' },
+ { 'name': 'spice', 'if': 'CONFIG_SPICE' } ] }
+
##
# @set_password:
#
# Sets the password of a remote display session.
#
-# @protocol: - 'vnc' to modify the VNC server password
-# - 'spice' to modify the Spice server password
-#
-# @password: the new password
-#
-# @connected: how to handle existing clients when changing the
-# password. If nothing is specified, defaults to 'keep'
-# 'fail' to fail the command if clients are connected
-# 'disconnect' to disconnect existing clients
-# 'keep' to maintain existing clients
-#
# Returns: - Nothing on success
# - If Spice is not enabled, DeviceNotFound
#
@@ -37,16 +38,123 @@
# <- { "return": {} }
#
##
-{ 'command': 'set_password',
- 'data': {'protocol': 'str', 'password': 'str', '*connected': 'str'} }
+{ 'command': 'set_password', 'boxed': true, 'data': 'SetPasswordOptions' }
+
+##
+# @SetPasswordOptions:
+#
+# Data required to set a new password on a display server protocol.
+#
+# @protocol: - 'vnc' to modify the VNC server password
+# - 'spice' to modify the Spice server password
+#
+# @password: the new password
+#
+# Since: 6.2
+#
+##
+{ 'union': 'SetPasswordOptions',
+ 'base': { 'protocol': 'DisplayProtocol',
+ 'password': 'str' },
+ 'discriminator': 'protocol',
+ 'data': { 'vnc': 'SetPasswordOptionsVnc',
+ 'spice': 'SetPasswordOptionsSpice' } }
+
+##
+# @SetPasswordAction:
+#
+# An action to take on changing a password on a connection with active clients.
+#
+# @fail: fail the command if clients are connected
+#
+# @disconnect: disconnect existing clients
+#
+# @keep: maintain existing clients
+#
+# Since: 6.2
+#
+##
+{ 'enum': 'SetPasswordAction',
+ 'data': [ 'fail', 'disconnect', 'keep' ] }
+
+##
+# @SetPasswordActionVnc:
+#
+# See @SetPasswordAction. VNC only supports the keep action. 'connection'
+# should just be omitted for VNC, this is kept for backwards compatibility.
+#
+# @keep: maintain existing clients
+#
+# Since: 6.2
+#
+##
+{ 'enum': 'SetPasswordActionVnc',
+ 'data': [ 'keep' ] }
+
+##
+# @SetPasswordOptionsSpice:
+#
+# Options for set_password specific to the VNC procotol.
+#
+# @connected: How to handle existing clients when changing the
+# password. If nothing is specified, defaults to 'keep'.
+#
+# Since: 6.2
+#
+##
+{ 'struct': 'SetPasswordOptionsSpice',
+ 'data': { '*connected': 'SetPasswordAction' } }
+
+##
+# @SetPasswordOptionsVnc:
+#
+# Options for set_password specific to the VNC procotol.
+#
+# @display: The id of the display where the password should be changed.
+# Defaults to the first.
+#
+# @connected: How to handle existing clients when changing the
+# password.
+#
+# Features:
+# @deprecated: For VNC, @connected will always be 'keep', parameter should be
+# omitted.
+#
+# Since: 6.2
+#
+##
+{ 'struct': 'SetPasswordOptionsVnc',
+ 'data': { '*display': 'str',
+ '*connected': { 'type': 'SetPasswordActionVnc',
+ 'features': ['deprecated'] } } }
##
# @expire_password:
#
# Expire the password of a remote display server.
#
-# @protocol: the name of the remote display protocol 'vnc' or 'spice'
+# Returns: - Nothing on success
+# - If @protocol is 'spice' and Spice is not active, DeviceNotFound
#
+# Since: 0.14
+#
+# Example:
+#
+# -> { "execute": "expire_password", "arguments": { "protocol": "vnc",
+# "time": "+60" } }
+# <- { "return": {} }
+#
+##
+{ 'command': 'expire_password', 'boxed': true, 'data': 'ExpirePasswordOptions' }
+
+##
+# @ExpirePasswordOptions:
+#
+# Data required to set password expiration on a display server protocol.
+#
+# @protocol: - 'vnc' to modify the VNC server expiration
+# - 'spice' to modify the Spice server expiration
+
# @time: when to expire the password.
#
# - 'now' to expire the password immediately
@@ -54,24 +162,33 @@
# - '+INT' where INT is the number of seconds from now (integer)
# - 'INT' where INT is the absolute time in seconds
#
-# Returns: - Nothing on success
-# - If @protocol is 'spice' and Spice is not active, DeviceNotFound
-#
-# Since: 0.14
-#
# Notes: Time is relative to the server and currently there is no way to
# coordinate server time with client time. It is not recommended to
# use the absolute time version of the @time parameter unless you're
# sure you are on the same machine as the QEMU instance.
#
-# Example:
+# Since: 6.2
#
-# -> { "execute": "expire_password", "arguments": { "protocol": "vnc",
-# "time": "+60" } }
-# <- { "return": {} }
+##
+{ 'union': 'ExpirePasswordOptions',
+ 'base': { 'protocol': 'DisplayProtocol',
+ 'time': 'str' },
+ 'discriminator': 'protocol',
+ 'data': { 'vnc': 'ExpirePasswordOptionsVnc' } }
+
+##
+# @ExpirePasswordOptionsVnc:
+#
+# Options for expire_password specific to the VNC procotol.
+#
+# @display: The id of the display where the expiration should be changed.
+# Defaults to the first.
+#
+# Since: 6.2
#
##
-{ 'command': 'expire_password', 'data': {'protocol': 'str', 'time': 'str'} }
+{ 'struct': 'ExpirePasswordOptionsVnc',
+ 'data': { '*display': 'str' } }
##
# @screendump:
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