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authorLennart Poettering <lennart@poettering.net>2015-02-18 11:41:28 +0100
committerLennart Poettering <lennart@poettering.net>2015-02-18 11:43:18 +0100
commit70244d1d25eb80b57e160ea004d0e6bf793d4caf (patch)
tree426754a172acd4d9fadf46e120afc9e26e653e08 /src
parentc0765ddb74f20046c406a3ac99f34719d767f151 (diff)
machined: open up most of machined's commands to unprivileged clients via PolicyKit
Diffstat (limited to 'src')
-rw-r--r--src/machine/image-dbus.c62
-rw-r--r--src/machine/machine-dbus.c58
-rw-r--r--src/machine/machined-dbus.c22
-rw-r--r--src/machine/org.freedesktop.machine1.policy.in22
-rw-r--r--src/shared/machine-image.h2
5 files changed, 147 insertions, 19 deletions
diff --git a/src/machine/image-dbus.c b/src/machine/image-dbus.c
index f5c7d4d880..0d4ebde92b 100644
--- a/src/machine/image-dbus.c
+++ b/src/machine/image-dbus.c
@@ -35,12 +35,25 @@ int bus_image_method_remove(
sd_bus_error *error) {
Image *image = userdata;
+ Manager *m = image->userdata;
int r;
assert(bus);
assert(message);
assert(image);
+ r = bus_verify_polkit_async(
+ message,
+ CAP_SYS_ADMIN,
+ "org.freedesktop.machine1.manage-images",
+ false,
+ &m->polkit_registry,
+ error);
+ if (r < 0)
+ return r;
+ if (r == 0)
+ return 1; /* Will call us back */
+
r = image_remove(image);
if (r < 0)
return r;
@@ -55,6 +68,7 @@ int bus_image_method_rename(
sd_bus_error *error) {
Image *image = userdata;
+ Manager *m = image->userdata;
const char *new_name;
int r;
@@ -69,6 +83,18 @@ int bus_image_method_rename(
if (!image_name_is_valid(new_name))
return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS, "Image name '%s' is invalid.", new_name);
+ r = bus_verify_polkit_async(
+ message,
+ CAP_SYS_ADMIN,
+ "org.freedesktop.machine1.manage-images",
+ false,
+ &m->polkit_registry,
+ error);
+ if (r < 0)
+ return r;
+ if (r == 0)
+ return 1; /* Will call us back */
+
r = image_rename(image, new_name);
if (r < 0)
return r;
@@ -83,6 +109,7 @@ int bus_image_method_clone(
sd_bus_error *error) {
Image *image = userdata;
+ Manager *m = image->userdata;
const char *new_name;
int r, read_only;
@@ -97,6 +124,18 @@ int bus_image_method_clone(
if (!image_name_is_valid(new_name))
return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS, "Image name '%s' is invalid.", new_name);
+ r = bus_verify_polkit_async(
+ message,
+ CAP_SYS_ADMIN,
+ "org.freedesktop.machine1.manage-images",
+ false,
+ &m->polkit_registry,
+ error);
+ if (r < 0)
+ return r;
+ if (r == 0)
+ return 1; /* Will call us back */
+
r = image_clone(image, new_name, read_only);
if (r < 0)
return r;
@@ -111,6 +150,7 @@ int bus_image_method_mark_read_only(
sd_bus_error *error) {
Image *image = userdata;
+ Manager *m = image->userdata;
int r, read_only;
assert(bus);
@@ -120,6 +160,18 @@ int bus_image_method_mark_read_only(
if (r < 0)
return r;
+ r = bus_verify_polkit_async(
+ message,
+ CAP_SYS_ADMIN,
+ "org.freedesktop.machine1.manage-images",
+ false,
+ &m->polkit_registry,
+ error);
+ if (r < 0)
+ return r;
+ if (r == 0)
+ return 1; /* Will call us back */
+
r = image_read_only(image, read_only);
if (r < 0)
return r;
@@ -139,10 +191,10 @@ const sd_bus_vtable image_vtable[] = {
SD_BUS_PROPERTY("Limit", "t", NULL, offsetof(Image, limit), 0),
SD_BUS_PROPERTY("UsageExclusive", "t", NULL, offsetof(Image, usage_exclusive), 0),
SD_BUS_PROPERTY("LimitExclusive", "t", NULL, offsetof(Image, limit_exclusive), 0),
- SD_BUS_METHOD("Remove", NULL, NULL, bus_image_method_remove, 0),
- SD_BUS_METHOD("Rename", "s", NULL, bus_image_method_rename, 0),
- SD_BUS_METHOD("Clone", "sb", NULL, bus_image_method_clone, 0),
- SD_BUS_METHOD("MarkReadOnly", "b", NULL, bus_image_method_mark_read_only, 0),
+ SD_BUS_METHOD("Remove", NULL, NULL, bus_image_method_remove, SD_BUS_VTABLE_UNPRIVILEGED),
+ SD_BUS_METHOD("Rename", "s", NULL, bus_image_method_rename, SD_BUS_VTABLE_UNPRIVILEGED),
+ SD_BUS_METHOD("Clone", "sb", NULL, bus_image_method_clone, SD_BUS_VTABLE_UNPRIVILEGED),
+ SD_BUS_METHOD("MarkReadOnly", "b", NULL, bus_image_method_mark_read_only, SD_BUS_VTABLE_UNPRIVILEGED),
SD_BUS_VTABLE_END
};
@@ -207,6 +259,8 @@ int image_object_find(sd_bus *bus, const char *path, const char *interface, void
if (r <= 0)
return r;
+ image->userdata = m;
+
r = hashmap_put(m->image_cache, image->name, image);
if (r < 0) {
image_unref(image);
diff --git a/src/machine/machine-dbus.c b/src/machine/machine-dbus.c
index 216c9c1d0d..405c072b90 100644
--- a/src/machine/machine-dbus.c
+++ b/src/machine/machine-dbus.c
@@ -128,6 +128,18 @@ int bus_machine_method_terminate(sd_bus *bus, sd_bus_message *message, void *use
assert(message);
assert(m);
+ r = bus_verify_polkit_async(
+ message,
+ CAP_KILL,
+ "org.freedesktop.machine1.manage-machines",
+ false,
+ &m->manager->polkit_registry,
+ error);
+ if (r < 0)
+ return r;
+ if (r == 0)
+ return 1; /* Will call us back */
+
r = machine_stop(m);
if (r < 0)
return r;
@@ -161,6 +173,18 @@ int bus_machine_method_kill(sd_bus *bus, sd_bus_message *message, void *userdata
if (signo <= 0 || signo >= _NSIG)
return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS, "Invalid signal %i", signo);
+ r = bus_verify_polkit_async(
+ message,
+ CAP_KILL,
+ "org.freedesktop.machine1.manage-machines",
+ false,
+ &m->manager->polkit_registry,
+ error);
+ if (r < 0)
+ return r;
+ if (r == 0)
+ return 1; /* Will call us back */
+
r = machine_kill(m, who, signo);
if (r < 0)
return r;
@@ -554,6 +578,18 @@ int bus_machine_method_bind_mount(sd_bus *bus, sd_bus_message *message, void *us
else if (!path_is_absolute(dest) || !path_is_safe(dest))
return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS, "Destination path must be absolute and not contain ../.");
+ r = bus_verify_polkit_async(
+ message,
+ CAP_SYS_ADMIN,
+ "org.freedesktop.machine1.manage-machines",
+ false,
+ &m->manager->polkit_registry,
+ error);
+ if (r < 0)
+ return r;
+ if (r == 0)
+ return 1; /* Will call us back */
+
/* One day, when bind mounting /proc/self/fd/n works across
* namespace boundaries we should rework this logic to make
* use of it... */
@@ -800,6 +836,18 @@ int bus_machine_method_copy(sd_bus *bus, sd_bus_message *message, void *userdata
else if (!path_is_absolute(dest) || !path_is_safe(dest))
return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS, "Destination path must be absolute and not contain ../.");
+ r = bus_verify_polkit_async(
+ message,
+ CAP_SYS_ADMIN,
+ "org.freedesktop.machine1.manage-machines",
+ false,
+ &m->manager->polkit_registry,
+ error);
+ if (r < 0)
+ return r;
+ if (r == 0)
+ return 1; /* Will call us back */
+
copy_from = strstr(sd_bus_message_get_member(message), "CopyFrom");
if (copy_from) {
@@ -916,15 +964,15 @@ const sd_bus_vtable machine_vtable[] = {
SD_BUS_PROPERTY("RootDirectory", "s", NULL, offsetof(Machine, root_directory), SD_BUS_VTABLE_PROPERTY_CONST),
SD_BUS_PROPERTY("NetworkInterfaces", "ai", property_get_netif, 0, SD_BUS_VTABLE_PROPERTY_CONST),
SD_BUS_PROPERTY("State", "s", property_get_state, 0, 0),
- SD_BUS_METHOD("Terminate", NULL, NULL, bus_machine_method_terminate, SD_BUS_VTABLE_CAPABILITY(CAP_KILL)),
- SD_BUS_METHOD("Kill", "si", NULL, bus_machine_method_kill, SD_BUS_VTABLE_CAPABILITY(CAP_KILL)),
+ SD_BUS_METHOD("Terminate", NULL, NULL, bus_machine_method_terminate, SD_BUS_VTABLE_UNPRIVILEGED),
+ SD_BUS_METHOD("Kill", "si", NULL, bus_machine_method_kill, SD_BUS_VTABLE_UNPRIVILEGED),
SD_BUS_METHOD("GetAddresses", NULL, "a(iay)", bus_machine_method_get_addresses, SD_BUS_VTABLE_UNPRIVILEGED),
SD_BUS_METHOD("GetOSRelease", NULL, "a{ss}", bus_machine_method_get_os_release, SD_BUS_VTABLE_UNPRIVILEGED),
SD_BUS_METHOD("OpenPTY", NULL, "hs", bus_machine_method_open_pty, 0),
SD_BUS_METHOD("OpenLogin", NULL, "hs", bus_machine_method_open_login, SD_BUS_VTABLE_UNPRIVILEGED),
- SD_BUS_METHOD("BindMount", "ssbb", NULL, bus_machine_method_bind_mount, 0),
- SD_BUS_METHOD("CopyFrom", "ss", NULL, bus_machine_method_copy, 0),
- SD_BUS_METHOD("CopyTo", "ss", NULL, bus_machine_method_copy, 0),
+ SD_BUS_METHOD("BindMount", "ssbb", NULL, bus_machine_method_bind_mount, SD_BUS_VTABLE_UNPRIVILEGED),
+ SD_BUS_METHOD("CopyFrom", "ss", NULL, bus_machine_method_copy, SD_BUS_VTABLE_UNPRIVILEGED),
+ SD_BUS_METHOD("CopyTo", "ss", NULL, bus_machine_method_copy, SD_BUS_VTABLE_UNPRIVILEGED),
SD_BUS_VTABLE_END
};
diff --git a/src/machine/machined-dbus.c b/src/machine/machined-dbus.c
index 155146b938..7a9ac2f349 100644
--- a/src/machine/machined-dbus.c
+++ b/src/machine/machined-dbus.c
@@ -622,6 +622,7 @@ static int method_remove_image(sd_bus *bus, sd_bus_message *message, void *userd
if (r == 0)
return sd_bus_error_setf(error, BUS_ERROR_NO_SUCH_IMAGE, "No image '%s' known", name);
+ i->userdata = userdata;
return bus_image_method_remove(bus, message, i, error);
}
@@ -646,6 +647,7 @@ static int method_rename_image(sd_bus *bus, sd_bus_message *message, void *userd
if (r == 0)
return sd_bus_error_setf(error, BUS_ERROR_NO_SUCH_IMAGE, "No image '%s' known", old_name);
+ i->userdata = userdata;
return bus_image_method_rename(bus, message, i, error);
}
@@ -668,6 +670,7 @@ static int method_clone_image(sd_bus *bus, sd_bus_message *message, void *userda
if (r == 0)
return sd_bus_error_setf(error, BUS_ERROR_NO_SUCH_IMAGE, "No image '%s' known", old_name);
+ i->userdata = userdata;
return bus_image_method_clone(bus, message, i, error);
}
@@ -690,6 +693,7 @@ static int method_mark_image_read_only(sd_bus *bus, sd_bus_message *message, voi
if (r == 0)
return sd_bus_error_setf(error, BUS_ERROR_NO_SUCH_IMAGE, "No image '%s' known", name);
+ i->userdata = userdata;
return bus_image_method_mark_read_only(bus, message, i, error);
}
@@ -704,19 +708,19 @@ const sd_bus_vtable manager_vtable[] = {
SD_BUS_METHOD("CreateMachineWithNetwork", "sayssusaia(sv)", "o", method_create_machine_with_network, 0),
SD_BUS_METHOD("RegisterMachine", "sayssus", "o", method_register_machine, 0),
SD_BUS_METHOD("RegisterMachineWithNetwork", "sayssusai", "o", method_register_machine_with_network, 0),
- SD_BUS_METHOD("TerminateMachine", "s", NULL, method_terminate_machine, SD_BUS_VTABLE_CAPABILITY(CAP_KILL)),
- SD_BUS_METHOD("KillMachine", "ssi", NULL, method_kill_machine, SD_BUS_VTABLE_CAPABILITY(CAP_KILL)),
+ SD_BUS_METHOD("TerminateMachine", "s", NULL, method_terminate_machine, SD_BUS_VTABLE_UNPRIVILEGED),
+ SD_BUS_METHOD("KillMachine", "ssi", NULL, method_kill_machine, SD_BUS_VTABLE_UNPRIVILEGED),
SD_BUS_METHOD("GetMachineAddresses", "s", "a(iay)", method_get_machine_addresses, SD_BUS_VTABLE_UNPRIVILEGED),
SD_BUS_METHOD("GetMachineOSRelease", "s", "a{ss}", method_get_machine_os_release, SD_BUS_VTABLE_UNPRIVILEGED),
SD_BUS_METHOD("OpenMachinePTY", "s", "hs", method_open_machine_pty, 0),
SD_BUS_METHOD("OpenMachineLogin", "s", "hs", method_open_machine_login, SD_BUS_VTABLE_UNPRIVILEGED),
- SD_BUS_METHOD("BindMountMachine", "sssbb", NULL, method_bind_mount_machine, 0),
- SD_BUS_METHOD("CopyFromMachine", "sss", NULL, method_copy_machine, 0),
- SD_BUS_METHOD("CopyToMachine", "sss", NULL, method_copy_machine, 0),
- SD_BUS_METHOD("RemoveImage", "s", NULL, method_remove_image, 0),
- SD_BUS_METHOD("RenameImage", "ss", NULL, method_rename_image, 0),
- SD_BUS_METHOD("CloneImage", "ssb", NULL, method_clone_image, 0),
- SD_BUS_METHOD("MarkImageReadOnly", "sb", NULL, method_mark_image_read_only, 0),
+ SD_BUS_METHOD("BindMountMachine", "sssbb", NULL, method_bind_mount_machine, SD_BUS_VTABLE_UNPRIVILEGED),
+ SD_BUS_METHOD("CopyFromMachine", "sss", NULL, method_copy_machine, SD_BUS_VTABLE_UNPRIVILEGED),
+ SD_BUS_METHOD("CopyToMachine", "sss", NULL, method_copy_machine, SD_BUS_VTABLE_UNPRIVILEGED),
+ SD_BUS_METHOD("RemoveImage", "s", NULL, method_remove_image, SD_BUS_VTABLE_UNPRIVILEGED),
+ SD_BUS_METHOD("RenameImage", "ss", NULL, method_rename_image, SD_BUS_VTABLE_UNPRIVILEGED),
+ SD_BUS_METHOD("CloneImage", "ssb", NULL, method_clone_image, SD_BUS_VTABLE_UNPRIVILEGED),
+ SD_BUS_METHOD("MarkImageReadOnly", "sb", NULL, method_mark_image_read_only, SD_BUS_VTABLE_UNPRIVILEGED),
SD_BUS_SIGNAL("MachineNew", "so", 0),
SD_BUS_SIGNAL("MachineRemoved", "so", 0),
SD_BUS_VTABLE_END
diff --git a/src/machine/org.freedesktop.machine1.policy.in b/src/machine/org.freedesktop.machine1.policy.in
index 43478a84d6..02714e83ae 100644
--- a/src/machine/org.freedesktop.machine1.policy.in
+++ b/src/machine/org.freedesktop.machine1.policy.in
@@ -18,7 +18,27 @@
<action id="org.freedesktop.machine1.login">
<_description>Log into a local container</_description>
- <_message>Authentication is required to log into a local container</_message>
+ <_message>Authentication is required to log into a local container.</_message>
+ <defaults>
+ <allow_any>auth_admin</allow_any>
+ <allow_inactive>auth_admin</allow_inactive>
+ <allow_active>auth_admin_keep</allow_active>
+ </defaults>
+ </action>
+
+ <action id="org.freedesktop.machine1.manage-machines">
+ <_description>Manage local virtual machines and containers</_description>
+ <_message>Authentication is required to manage local virtual machines and containers.</_message>
+ <defaults>
+ <allow_any>auth_admin</allow_any>
+ <allow_inactive>auth_admin</allow_inactive>
+ <allow_active>auth_admin_keep</allow_active>
+ </defaults>
+ </action>
+
+ <action id="org.freedesktop.machine1.manage-images">
+ <_description>Manage local virtual machine and container images</_description>
+ <_message>Authentication is required to manage local virtual machine and container images.</_message>
<defaults>
<allow_any>auth_admin</allow_any>
<allow_inactive>auth_admin</allow_inactive>
diff --git a/src/shared/machine-image.h b/src/shared/machine-image.h
index 75fa5f4533..314fd6da58 100644
--- a/src/shared/machine-image.h
+++ b/src/shared/machine-image.h
@@ -45,6 +45,8 @@ typedef struct Image {
uint64_t usage_exclusive;
uint64_t limit;
uint64_t limit_exclusive;
+
+ void *userdata;
} Image;
Image *image_unref(Image *i);