Revision tags: v7.0.0, v7.0.0-rc4, v7.0.0-rc3, v7.0.0-rc2, v7.0.0-rc1, v7.0.0-rc0, v6.1.1, v6.2.0, v6.2.0-rc4, v6.2.0-rc3, v6.2.0-rc2, v6.2.0-rc1, v6.2.0-rc0, v6.0.1, v6.1.0, v6.1.0-rc4, v6.1.0-rc3, v6.1.0-rc2, v6.1.0-rc1, v6.1.0-rc0, v6.0.0, v6.0.0-rc5, v6.0.0-rc4, v6.0.0-rc3, v6.0.0-rc2, v6.0.0-rc1, v6.0.0-rc0, v5.2.0, v5.2.0-rc4, v5.2.0-rc3, v5.2.0-rc2 |
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3428455d |
| 17-Nov-2020 |
Kevin Wolf <kwolf@redhat.com> |
authz-pam: Check that 'service' property is set
If the 'service' property is not set, we'll call pam_start() with a NULL pointer for the service name. This fails and leaves a message like this in th
authz-pam: Check that 'service' property is set
If the 'service' property is not set, we'll call pam_start() with a NULL pointer for the service name. This fails and leaves a message like this in the syslog:
qemu-storage-daemon[294015]: PAM pam_start: invalid argument: service == NULL
Make specifying the property mandatory and catch the error already during the creation of the object.
Signed-off-by: Kevin Wolf <kwolf@redhat.com> Signed-off-by: Daniel P. Berrangé <berrange@redhat.com>
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Revision tags: v5.2.0-rc1, v5.2.0-rc0 |
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036a80cd |
| 14-Oct-2020 |
Chetan Pant <chetan4windows@gmail.com> |
authz: Fix Lesser GPL version number
There is no "version 2" of the "Lesser" General Public License. It is either "GPL version 2.0" or "Lesser GPL version 2.1". This patch replaces all occurrences o
authz: Fix Lesser GPL version number
There is no "version 2" of the "Lesser" General Public License. It is either "GPL version 2.0" or "Lesser GPL version 2.1". This patch replaces all occurrences of "Lesser GPL version 2" with "Lesser GPL version 2.1" in comment section.
Signed-off-by: Chetan Pant <chetan4windows@gmail.com> Signed-off-by: Daniel P. Berrangé <berrange@redhat.com>
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c734cd40 |
| 16-Sep-2020 |
Eduardo Habkost <ehabkost@redhat.com> |
qom: Remove ParentClassType argument from OBJECT_DECLARE_SIMPLE_TYPE
The requirement to specify the parent class type makes the macro harder to use and easy to misuse (silent bugs can be introduced
qom: Remove ParentClassType argument from OBJECT_DECLARE_SIMPLE_TYPE
The requirement to specify the parent class type makes the macro harder to use and easy to misuse (silent bugs can be introduced if the wrong struct type is specified).
Simplify the macro by just not declaring any class struct, allowing us to remove the class_size field from the TypeInfo variables for those types.
Signed-off-by: Eduardo Habkost <ehabkost@redhat.com> Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com> Message-Id: <20200916182519.415636-3-ehabkost@redhat.com> Signed-off-by: Eduardo Habkost <ehabkost@redhat.com>
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Revision tags: v5.0.1, v5.1.0, v5.1.0-rc3, v5.1.0-rc2, v5.1.0-rc1, v5.1.0-rc0, v4.2.1 |
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d2623129 |
| 05-May-2020 |
Markus Armbruster <armbru@redhat.com> |
qom: Drop parameter @errp of object_property_add() & friends
The only way object_property_add() can fail is when a property with the same name already exists. Since our property names are all hardc
qom: Drop parameter @errp of object_property_add() & friends
The only way object_property_add() can fail is when a property with the same name already exists. Since our property names are all hardcoded, failure is a programming error, and the appropriate way to handle it is passing &error_abort.
Same for its variants, except for object_property_add_child(), which additionally fails when the child already has a parent. Parentage is also under program control, so this is a programming error, too.
We have a bit over 500 callers. Almost half of them pass &error_abort, slightly fewer ignore errors, one test case handles errors, and the remaining few callers pass them to their own callers.
The previous few commits demonstrated once again that ignoring programming errors is a bad idea.
Of the few ones that pass on errors, several violate the Error API. The Error ** argument must be NULL, &error_abort, &error_fatal, or a pointer to a variable containing NULL. Passing an argument of the latter kind twice without clearing it in between is wrong: if the first call sets an error, it no longer points to NULL for the second call. ich9_pm_add_properties(), sparc32_ledma_realize(), sparc32_dma_realize(), xilinx_axidma_realize(), xilinx_enet_realize() are wrong that way.
When the one appropriate choice of argument is &error_abort, letting users pick the argument is a bad idea.
Drop parameter @errp and assert the preconditions instead.
There's one exception to "duplicate property name is a programming error": the way object_property_add() implements the magic (and undocumented) "automatic arrayification". Don't drop @errp there. Instead, rename object_property_add() to object_property_try_add(), and add the obvious wrapper object_property_add().
Signed-off-by: Markus Armbruster <armbru@redhat.com> Reviewed-by: Eric Blake <eblake@redhat.com> Reviewed-by: Paolo Bonzini <pbonzini@redhat.com> Message-Id: <20200505152926.18877-15-armbru@redhat.com> [Two semantic rebase conflicts resolved]
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Revision tags: v5.0.0, v5.0.0-rc4, v5.0.0-rc3, v5.0.0-rc2, v5.0.0-rc1, v5.0.0-rc0, v4.2.0, v4.2.0-rc5, v4.2.0-rc4, v4.2.0-rc3, v4.2.0-rc2, v4.1.1, v4.2.0-rc1, v4.2.0-rc0, v4.0.1, v3.1.1.1, v4.1.0, v4.1.0-rc5, v4.1.0-rc4, v3.1.1, v4.1.0-rc3, v4.1.0-rc2, v4.1.0-rc1, v4.1.0-rc0 |
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0b8fa32f |
| 23-May-2019 |
Markus Armbruster <armbru@redhat.com> |
Include qemu/module.h where needed, drop it from qemu-common.h
Signed-off-by: Markus Armbruster <armbru@redhat.com> Message-Id: <20190523143508.25387-4-armbru@redhat.com> [Rebased with conflicts res
Include qemu/module.h where needed, drop it from qemu-common.h
Signed-off-by: Markus Armbruster <armbru@redhat.com> Message-Id: <20190523143508.25387-4-armbru@redhat.com> [Rebased with conflicts resolved automatically, except for hw/usb/dev-hub.c hw/misc/exynos4210_rng.c hw/misc/bcm2835_rng.c hw/misc/aspeed_scu.c hw/display/virtio-vga.c hw/arm/stm32f205_soc.c; ui/cocoa.m fixed up]
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Revision tags: v4.0.0, v4.0.0-rc4, v3.0.1, v4.0.0-rc3, v4.0.0-rc2, v4.0.0-rc1, v4.0.0-rc0 |
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45b1f68c |
| 15-Mar-2019 |
Markus Armbruster <armbru@redhat.com> |
authz: Normalize #include "authz/trace.h" to "trace.h"
Include the generated trace.h the same way as we do everywhere else.
Signed-off-by: Markus Armbruster <armbru@redhat.com> Message-Id: <2019031
authz: Normalize #include "authz/trace.h" to "trace.h"
Include the generated trace.h the same way as we do everywhere else.
Signed-off-by: Markus Armbruster <armbru@redhat.com> Message-Id: <20190315145123.28030-3-armbru@redhat.com> Acked-by: Daniel P. Berrangé <berrange@redhat.com> Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com>
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Revision tags: v3.1.0, v3.1.0-rc5, v3.1.0-rc4, v3.1.0-rc3, v3.1.0-rc2, v3.1.0-rc1, v3.1.0-rc0, v3.0.0, v3.0.0-rc4, v2.12.1, v3.0.0-rc3, v3.0.0-rc2, v3.0.0-rc1, v3.0.0-rc0, v2.11.2, v2.12.0, v2.12.0-rc4, v2.12.0-rc3, v2.12.0-rc2, v2.12.0-rc1, v2.12.0-rc0, v2.11.1, v2.10.2, v2.11.0, v2.11.0-rc5, v2.11.0-rc4, v2.11.0-rc3, v2.11.0-rc2, v2.11.0-rc1, v2.11.0-rc0, v2.10.1, v2.9.1, v2.10.0, v2.10.0-rc4, v2.10.0-rc3, v2.10.0-rc2, v2.10.0-rc1, v2.10.0-rc0, v2.8.1.1, v2.9.0, v2.9.0-rc5, v2.9.0-rc4, v2.9.0-rc3, v2.8.1, v2.9.0-rc2, v2.9.0-rc1, v2.9.0-rc0, v2.7.1, v2.8.0, v2.8.0-rc4, v2.8.0-rc3, v2.8.0-rc2, v2.8.0-rc1, v2.8.0-rc0, v2.6.2, v2.7.0, v2.7.0-rc5, v2.7.0-rc4, v2.6.1, v2.7.0-rc3, v2.7.0-rc2, v2.7.0-rc1 |
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8953caf3 |
| 27-Jul-2016 |
Daniel P. Berrange <berrange@redhat.com> |
authz: add QAuthZPAM object type for authorizing using PAM
Add an authorization backend that talks to PAM to check whether the user identity is allowed. This only uses the PAM account validation fac
authz: add QAuthZPAM object type for authorizing using PAM
Add an authorization backend that talks to PAM to check whether the user identity is allowed. This only uses the PAM account validation facility, which is essentially just a check to see if the provided username is permitted access. It doesn't use the authentication or session parts of PAM, since that's dealt with by the relevant part of QEMU (eg VNC server).
Consider starting QEMU with a VNC server and telling it to use TLS with x509 client certificates and configuring it to use an PAM to validate the x509 distinguished name. In this example we're telling it to use PAM for the QAuthZ impl with a service name of "qemu-vnc"
$ qemu-system-x86_64 \ -object tls-creds-x509,id=tls0,dir=/home/berrange/security/qemutls,\ endpoint=server,verify-peer=yes \ -object authz-pam,id=authz0,service=qemu-vnc \ -vnc :1,tls-creds=tls0,tls-authz=authz0
This requires an /etc/pam/qemu-vnc file to be created with the auth rules. A very simple file based whitelist can be setup using
$ cat > /etc/pam/qemu-vnc <<EOF account requisite pam_listfile.so item=user sense=allow file=/etc/qemu/vnc.allow EOF
The /etc/qemu/vnc.allow file simply contains one username per line. Any username not in the file is denied. The usernames in this example are the x509 distinguished name from the client's x509 cert.
$ cat > /etc/qemu/vnc.allow <<EOF CN=laptop.berrange.com,O=Berrange Home,L=London,ST=London,C=GB EOF
More interesting would be to configure PAM to use an LDAP backend, so that the QEMU authorization check data can be centralized instead of requiring each compute host to have file maintained.
The main limitation with this PAM module is that the rules apply to all QEMU instances on the host. Setting up different rules per VM, would require creating a separate PAM service name & config file for every guest. An alternative approach for the future might be to not pass in the plain username to PAM, but instead combine the VM name or UUID with the username. This requires further consideration though.
Tested-by: Philippe Mathieu-Daudé <philmd@redhat.com> Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com> Signed-off-by: Daniel P. Berrange <berrange@redhat.com>
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