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bus-util: support details in CheckAuthorization calls

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Extra details for an action can be supplied when calling polkit's
CheckAuthorization method. Details are a list of key/value string pairs.
Custom policy can use these details when making authorization decisions.
This commit is contained in:
Michael Chapman 2015-09-06 00:07:16 +10:00
parent 17258f5f27
commit 403ed0e5c9
14 changed files with 113 additions and 30 deletions
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10
src/core/dbus.c
View File

@ -1198,22 +1198,22 @@ int bus_track_coldplug(Manager *m, sd_bus_track **t, char ***l) {
}
int bus_verify_manage_units_async(Manager *m, sd_bus_message *call, sd_bus_error *error) {
return bus_verify_polkit_async(call, CAP_SYS_ADMIN, "org.freedesktop.systemd1.manage-units", false, UID_INVALID, &m->polkit_registry, error);
return bus_verify_polkit_async(call, CAP_SYS_ADMIN, "org.freedesktop.systemd1.manage-units", NULL, false, UID_INVALID, &m->polkit_registry, error);
}
/* Same as bus_verify_manage_unit_async(), but checks for CAP_KILL instead of CAP_SYS_ADMIN */
int bus_verify_manage_units_async_for_kill(Manager *m, sd_bus_message *call, sd_bus_error *error) {
return bus_verify_polkit_async(call, CAP_KILL, "org.freedesktop.systemd1.manage-units", false, UID_INVALID, &m->polkit_registry, error);
return bus_verify_polkit_async(call, CAP_KILL, "org.freedesktop.systemd1.manage-units", NULL, false, UID_INVALID, &m->polkit_registry, error);
}
int bus_verify_manage_unit_files_async(Manager *m, sd_bus_message *call, sd_bus_error *error) {
return bus_verify_polkit_async(call, CAP_SYS_ADMIN, "org.freedesktop.systemd1.manage-unit-files", false, UID_INVALID, &m->polkit_registry, error);
return bus_verify_polkit_async(call, CAP_SYS_ADMIN, "org.freedesktop.systemd1.manage-unit-files", NULL, false, UID_INVALID, &m->polkit_registry, error);
}
int bus_verify_reload_daemon_async(Manager *m, sd_bus_message *call, sd_bus_error *error) {
return bus_verify_polkit_async(call, CAP_SYS_ADMIN, "org.freedesktop.systemd1.reload-daemon", false, UID_INVALID, &m->polkit_registry, error);
return bus_verify_polkit_async(call, CAP_SYS_ADMIN, "org.freedesktop.systemd1.reload-daemon", NULL, false, UID_INVALID, &m->polkit_registry, error);
}
int bus_verify_set_environment_async(Manager *m, sd_bus_message *call, sd_bus_error *error) {
return bus_verify_polkit_async(call, CAP_SYS_ADMIN, "org.freedesktop.systemd1.set-environment", false, UID_INVALID, &m->polkit_registry, error);
return bus_verify_polkit_async(call, CAP_SYS_ADMIN, "org.freedesktop.systemd1.set-environment", NULL, false, UID_INVALID, &m->polkit_registry, error);
}

3
src/hostname/hostnamed.c
View File

@ -434,6 +434,7 @@ static int method_set_hostname(sd_bus_message *m, void *userdata, sd_bus_error *
m,
CAP_SYS_ADMIN,
"org.freedesktop.hostname1.set-hostname",
NULL,
interactive,
UID_INVALID,
&c->polkit_registry,
@ -486,6 +487,7 @@ static int method_set_static_hostname(sd_bus_message *m, void *userdata, sd_bus_
m,
CAP_SYS_ADMIN,
"org.freedesktop.hostname1.set-static-hostname",
NULL,
interactive,
UID_INVALID,
&c->polkit_registry,
@ -557,6 +559,7 @@ static int set_machine_info(Context *c, sd_bus_message *m, int prop, sd_bus_mess
m,
CAP_SYS_ADMIN,
prop == PROP_PRETTY_HOSTNAME ? "org.freedesktop.hostname1.set-static-hostname" : "org.freedesktop.hostname1.set-machine-info",
NULL,
interactive,
UID_INVALID,
&c->polkit_registry,

6
src/import/importd.c
View File

@ -735,6 +735,7 @@ static int method_import_tar_or_raw(sd_bus_message *msg, void *userdata, sd_bus_
msg,
CAP_SYS_ADMIN,
"org.freedesktop.import1.import",
NULL,
false,
UID_INVALID,
&m->polkit_registry,
@ -799,6 +800,7 @@ static int method_export_tar_or_raw(sd_bus_message *msg, void *userdata, sd_bus_
msg,
CAP_SYS_ADMIN,
"org.freedesktop.import1.export",
NULL,
false,
UID_INVALID,
&m->polkit_registry,
@ -864,6 +866,7 @@ static int method_pull_tar_or_raw(sd_bus_message *msg, void *userdata, sd_bus_er
msg,
CAP_SYS_ADMIN,
"org.freedesktop.import1.pull",
NULL,
false,
UID_INVALID,
&m->polkit_registry,
@ -945,6 +948,7 @@ static int method_pull_dkr(sd_bus_message *msg, void *userdata, sd_bus_error *er
msg,
CAP_SYS_ADMIN,
"org.freedesktop.import1.pull",
NULL,
false,
UID_INVALID,
&m->polkit_registry,
@ -1079,6 +1083,7 @@ static int method_cancel(sd_bus_message *msg, void *userdata, sd_bus_error *erro
msg,
CAP_SYS_ADMIN,
"org.freedesktop.import1.pull",
NULL,
false,
UID_INVALID,
&t->manager->polkit_registry,
@ -1108,6 +1113,7 @@ static int method_cancel_transfer(sd_bus_message *msg, void *userdata, sd_bus_er
msg,
CAP_SYS_ADMIN,
"org.freedesktop.import1.pull",
NULL,
false,
UID_INVALID,
&m->polkit_registry,

3
src/locale/localed.c
View File

@ -960,6 +960,7 @@ static int method_set_locale(sd_bus_message *m, void *userdata, sd_bus_error *er
m,
CAP_SYS_ADMIN,
"org.freedesktop.locale1.set-locale",
NULL,
interactive,
UID_INVALID,
&c->polkit_registry,
@ -1049,6 +1050,7 @@ static int method_set_vc_keyboard(sd_bus_message *m, void *userdata, sd_bus_erro
m,
CAP_SYS_ADMIN,
"org.freedesktop.locale1.set-keyboard",
NULL,
interactive,
UID_INVALID,
&c->polkit_registry,
@ -1180,6 +1182,7 @@ static int method_set_x11_keyboard(sd_bus_message *m, void *userdata, sd_bus_err
m,
CAP_SYS_ADMIN,
"org.freedesktop.locale1.set-keyboard",
NULL,
interactive,
UID_INVALID,
&c->polkit_registry,

20
src/login/logind-dbus.c
View File

@ -942,6 +942,7 @@ static int method_lock_sessions(sd_bus_message *message, void *userdata, sd_bus_
message,
CAP_SYS_ADMIN,
"org.freedesktop.login1.lock-sessions",
NULL,
false,
UID_INVALID,
&m->polkit_registry,
@ -1096,6 +1097,7 @@ static int method_set_user_linger(sd_bus_message *message, void *userdata, sd_bu
message,
CAP_SYS_ADMIN,
"org.freedesktop.login1.set-user-linger",
NULL,
interactive,
UID_INVALID,
&m->polkit_registry,
@ -1268,6 +1270,7 @@ static int method_attach_device(sd_bus_message *message, void *userdata, sd_bus_
message,
CAP_SYS_ADMIN,
"org.freedesktop.login1.attach-device",
NULL,
interactive,
UID_INVALID,
&m->polkit_registry,
@ -1299,6 +1302,7 @@ static int method_flush_devices(sd_bus_message *message, void *userdata, sd_bus_
message,
CAP_SYS_ADMIN,
"org.freedesktop.login1.flush-devices",
NULL,
interactive,
UID_INVALID,
&m->polkit_registry,
@ -1649,7 +1653,7 @@ static int verify_shutdown_creds(
blocked = manager_is_inhibited(m, w, INHIBIT_BLOCK, NULL, false, true, uid, NULL);
if (multiple_sessions && action_multiple_sessions) {
r = bus_verify_polkit_async(message, CAP_SYS_BOOT, action_multiple_sessions, interactive, UID_INVALID, &m->polkit_registry, error);
r = bus_verify_polkit_async(message, CAP_SYS_BOOT, action_multiple_sessions, NULL, interactive, UID_INVALID, &m->polkit_registry, error);
if (r < 0)
return r;
if (r == 0)
@ -1657,7 +1661,7 @@ static int verify_shutdown_creds(
}
if (blocked && action_ignore_inhibit) {
r = bus_verify_polkit_async(message, CAP_SYS_BOOT, action_ignore_inhibit, interactive, UID_INVALID, &m->polkit_registry, error);
r = bus_verify_polkit_async(message, CAP_SYS_BOOT, action_ignore_inhibit, NULL, interactive, UID_INVALID, &m->polkit_registry, error);
if (r < 0)
return r;
if (r == 0)
@ -1665,7 +1669,7 @@ static int verify_shutdown_creds(
}
if (!multiple_sessions && !blocked && action) {
r = bus_verify_polkit_async(message, CAP_SYS_BOOT, action, interactive, UID_INVALID, &m->polkit_registry, error);
r = bus_verify_polkit_async(message, CAP_SYS_BOOT, action, NULL, interactive, UID_INVALID, &m->polkit_registry, error);
if (r < 0)
return r;
if (r == 0)
@ -2085,7 +2089,7 @@ static int method_can_shutdown_or_sleep(
blocked = manager_is_inhibited(m, w, INHIBIT_BLOCK, NULL, false, true, uid, NULL);
if (multiple_sessions) {
r = bus_test_polkit(message, CAP_SYS_BOOT, action_multiple_sessions, UID_INVALID, &challenge, error);
r = bus_test_polkit(message, CAP_SYS_BOOT, action_multiple_sessions, NULL, UID_INVALID, &challenge, error);
if (r < 0)
return r;
@ -2098,7 +2102,7 @@ static int method_can_shutdown_or_sleep(
}
if (blocked) {
r = bus_test_polkit(message, CAP_SYS_BOOT, action_ignore_inhibit, UID_INVALID, &challenge, error);
r = bus_test_polkit(message, CAP_SYS_BOOT, action_ignore_inhibit, NULL, UID_INVALID, &challenge, error);
if (r < 0)
return r;
@ -2114,7 +2118,7 @@ static int method_can_shutdown_or_sleep(
/* If neither inhibit nor multiple sessions
* apply then just check the normal policy */
r = bus_test_polkit(message, CAP_SYS_BOOT, action, UID_INVALID, &challenge, error);
r = bus_test_polkit(message, CAP_SYS_BOOT, action, NULL, UID_INVALID, &challenge, error);
if (r < 0)
return r;
@ -2233,6 +2237,7 @@ static int method_set_reboot_to_firmware_setup(
r = bus_verify_polkit_async(message,
CAP_SYS_ADMIN,
"org.freedesktop.login1.set-reboot-to-firmware-setup",
NULL,
false,
UID_INVALID,
&m->polkit_registry,
@ -2271,6 +2276,7 @@ static int method_can_reboot_to_firmware_setup(
r = bus_test_polkit(message,
CAP_SYS_ADMIN,
"org.freedesktop.login1.set-reboot-to-firmware-setup",
NULL,
UID_INVALID,
&challenge,
error);
@ -2307,6 +2313,7 @@ static int method_set_wall_message(
r = bus_verify_polkit_async(message,
CAP_SYS_ADMIN,
"org.freedesktop.login1.set-wall-message",
NULL,
false,
UID_INVALID,
&m->polkit_registry,
@ -2378,6 +2385,7 @@ static int method_inhibit(sd_bus_message *message, void *userdata, sd_bus_error
w == INHIBIT_HANDLE_SUSPEND_KEY ? "org.freedesktop.login1.inhibit-handle-suspend-key" :
w == INHIBIT_HANDLE_HIBERNATE_KEY ? "org.freedesktop.login1.inhibit-handle-hibernate-key" :
"org.freedesktop.login1.inhibit-handle-lid-switch",
NULL,
false,
UID_INVALID,
&m->polkit_registry,

1
src/login/logind-seat-dbus.c
View File

@ -204,6 +204,7 @@ int bus_seat_method_terminate(sd_bus_message *message, void *userdata, sd_bus_er
message,
CAP_KILL,
"org.freedesktop.login1.manage",
NULL,
false,
UID_INVALID,
&s->manager->polkit_registry,

3
src/login/logind-session-dbus.c
View File

@ -191,6 +191,7 @@ int bus_session_method_terminate(sd_bus_message *message, void *userdata, sd_bus
message,
CAP_KILL,
"org.freedesktop.login1.manage",
NULL,
false,
s->user->uid,
&s->manager->polkit_registry,
@ -232,6 +233,7 @@ int bus_session_method_lock(sd_bus_message *message, void *userdata, sd_bus_erro
message,
CAP_SYS_ADMIN,
"org.freedesktop.login1.lock-sessions",
NULL,
false,
s->user->uid,
&s->manager->polkit_registry,
@ -306,6 +308,7 @@ int bus_session_method_kill(sd_bus_message *message, void *userdata, sd_bus_erro
message,
CAP_KILL,
"org.freedesktop.login1.manage",
NULL,
false,
s->user->uid,
&s->manager->polkit_registry,

2
src/login/logind-user-dbus.c
View File

@ -179,6 +179,7 @@ int bus_user_method_terminate(sd_bus_message *message, void *userdata, sd_bus_er
message,
CAP_KILL,
"org.freedesktop.login1.manage",
NULL,
false,
u->uid,
&u->manager->polkit_registry,
@ -207,6 +208,7 @@ int bus_user_method_kill(sd_bus_message *message, void *userdata, sd_bus_error *
message,
CAP_KILL,
"org.freedesktop.login1.manage",
NULL,
false,
u->uid,
&u->manager->polkit_registry,

5
src/machine/image-dbus.c
View File

@ -43,6 +43,7 @@ int bus_image_method_remove(
message,
CAP_SYS_ADMIN,
"org.freedesktop.machine1.manage-images",
NULL,
false,
UID_INVALID,
&m->polkit_registry,
@ -83,6 +84,7 @@ int bus_image_method_rename(
message,
CAP_SYS_ADMIN,
"org.freedesktop.machine1.manage-images",
NULL,
false,
UID_INVALID,
&m->polkit_registry,
@ -123,6 +125,7 @@ int bus_image_method_clone(
message,
CAP_SYS_ADMIN,
"org.freedesktop.machine1.manage-images",
NULL,
false,
UID_INVALID,
&m->polkit_registry,
@ -158,6 +161,7 @@ int bus_image_method_mark_read_only(
message,
CAP_SYS_ADMIN,
"org.freedesktop.machine1.manage-images",
NULL,
false,
UID_INVALID,
&m->polkit_registry,
@ -194,6 +198,7 @@ int bus_image_method_set_limit(
message,
CAP_SYS_ADMIN,
"org.freedesktop.machine1.manage-images",
NULL,
false,
UID_INVALID,
&m->polkit_registry,

7
src/machine/machine-dbus.c
View File

@ -124,6 +124,7 @@ int bus_machine_method_terminate(sd_bus_message *message, void *userdata, sd_bus
message,
CAP_KILL,
"org.freedesktop.machine1.manage-machines",
NULL,
false,
UID_INVALID,
&m->manager->polkit_registry,
@ -169,6 +170,7 @@ int bus_machine_method_kill(sd_bus_message *message, void *userdata, sd_bus_erro
message,
CAP_KILL,
"org.freedesktop.machine1.manage-machines",
NULL,
false,
UID_INVALID,
&m->manager->polkit_registry,
@ -488,6 +490,7 @@ int bus_machine_method_open_pty(sd_bus_message *message, void *userdata, sd_bus_
message,
CAP_SYS_ADMIN,
m->class == MACHINE_HOST ? "org.freedesktop.machine1.host-open-pty" : "org.freedesktop.machine1.open-pty",
NULL,
false,
UID_INVALID,
&m->manager->polkit_registry,
@ -577,6 +580,7 @@ int bus_machine_method_open_login(sd_bus_message *message, void *userdata, sd_bu
message,
CAP_SYS_ADMIN,
m->class == MACHINE_HOST ? "org.freedesktop.machine1.host-login" : "org.freedesktop.machine1.login",
NULL,
false,
UID_INVALID,
&m->manager->polkit_registry,
@ -675,6 +679,7 @@ int bus_machine_method_open_shell(sd_bus_message *message, void *userdata, sd_bu
message,
CAP_SYS_ADMIN,
m->class == MACHINE_HOST ? "org.freedesktop.machine1.host-shell" : "org.freedesktop.machine1.shell",
NULL,
false,
UID_INVALID,
&m->manager->polkit_registry,
@ -883,6 +888,7 @@ int bus_machine_method_bind_mount(sd_bus_message *message, void *userdata, sd_bu
message,
CAP_SYS_ADMIN,
"org.freedesktop.machine1.manage-machines",
NULL,
false,
UID_INVALID,
&m->manager->polkit_registry,
@ -1145,6 +1151,7 @@ int bus_machine_method_copy(sd_bus_message *message, void *userdata, sd_bus_erro
message,
CAP_SYS_ADMIN,
"org.freedesktop.machine1.manage-machines",
NULL,
false,
UID_INVALID,
&m->manager->polkit_registry,

1
src/machine/machined-dbus.c
View File

@ -810,6 +810,7 @@ static int method_set_pool_limit(sd_bus_message *message, void *userdata, sd_bus
message,
CAP_SYS_ADMIN,
"org.freedesktop.machine1.manage-machines",
NULL,
false,
UID_INVALID,
&m->polkit_registry,

74
src/shared/bus-util.c
View File

@ -220,6 +220,7 @@ int bus_test_polkit(
sd_bus_message *call,
int capability,
const char *action,
const char **details,
uid_t good_user,
bool *_challenge,
sd_bus_error *e) {
@ -242,29 +243,52 @@ int bus_test_polkit(
return 1;
#ifdef ENABLE_POLKIT
else {
_cleanup_bus_message_unref_ sd_bus_message *request = NULL;
_cleanup_bus_message_unref_ sd_bus_message *reply = NULL;
int authorized = false, challenge = false;
const char *sender;
const char *sender, **k, **v;
sender = sd_bus_message_get_sender(call);
if (!sender)
return -EBADMSG;
r = sd_bus_call_method(
r = sd_bus_message_new_method_call(
call->bus,
&request,
"org.freedesktop.PolicyKit1",
"/org/freedesktop/PolicyKit1/Authority",
"org.freedesktop.PolicyKit1.Authority",
"CheckAuthorization",
e,
&reply,
"(sa{sv})sa{ss}us",
"system-bus-name", 1, "name", "s", sender,
action,
0,
0,
"");
"CheckAuthorization");
if (r < 0)
return r;
r = sd_bus_message_append(
request,
"(sa{sv})s",
"system-bus-name", 1, "name", "s", sender,
action);
if (r < 0)
return r;
r = sd_bus_message_open_container(request, 'a', "{ss}");
if (r < 0)
return r;
STRV_FOREACH_PAIR(k, v, details) {
r = sd_bus_message_append(request, "{ss}", *k, *v);
if (r < 0)
return r;
}
r = sd_bus_message_close_container(request);
if (r < 0)
return r;
r = sd_bus_message_append(request, "us", 0, NULL);
if (r < 0)
return r;
r = sd_bus_call(call->bus, request, 0, e, &reply);
if (r < 0) {
/* Treat no PK available as access denied */
if (sd_bus_error_has_name(e, SD_BUS_ERROR_SERVICE_UNKNOWN)) {
@ -354,6 +378,7 @@ int bus_verify_polkit_async(
sd_bus_message *call,
int capability,
const char *action,
const char **details,
bool interactive,
uid_t good_user,
Hashmap **registry,
@ -362,7 +387,7 @@ int bus_verify_polkit_async(
#ifdef ENABLE_POLKIT
_cleanup_bus_message_unref_ sd_bus_message *pk = NULL;
AsyncPolkitQuery *q;
const char *sender;
const char *sender, **k, **v;
sd_bus_message_handler_t callback;
void *userdata;
int c;
@ -460,12 +485,27 @@ int bus_verify_polkit_async(
r = sd_bus_message_append(
pk,
"(sa{sv})sa{ss}us",
"(sa{sv})s",
"system-bus-name", 1, "name", "s", sender,
action,
0,
!!interactive,
NULL);
action);
if (r < 0)
return r;
r = sd_bus_message_open_container(pk, 'a', "{ss}");
if (r < 0)
return r;
STRV_FOREACH_PAIR(k, v, details) {
r = sd_bus_message_append(pk, "{ss}", *k, *v);
if (r < 0)
return r;
}
r = sd_bus_message_close_container(pk);
if (r < 0)
return r;
r = sd_bus_message_append(pk, "us", !!interactive, NULL);
if (r < 0)
return r;

4
src/shared/bus-util.h
View File

@ -60,9 +60,9 @@ int bus_name_has_owner(sd_bus *c, const char *name, sd_bus_error *error);
int bus_check_peercred(sd_bus *c);
int bus_test_polkit(sd_bus_message *call, int capability, const char *action, uid_t good_user, bool *_challenge, sd_bus_error *e);
int bus_test_polkit(sd_bus_message *call, int capability, const char *action, const char **details, uid_t good_user, bool *_challenge, sd_bus_error *e);
int bus_verify_polkit_async(sd_bus_message *call, int capability, const char *action, bool interactive, uid_t good_user, Hashmap **registry, sd_bus_error *error);
int bus_verify_polkit_async(sd_bus_message *call, int capability, const char *action, const char **details, bool interactive, uid_t good_user, Hashmap **registry, sd_bus_error *error);
void bus_verify_polkit_async_registry_free(Hashmap *registry);
int bus_open_system_systemd(sd_bus **_bus);

4
src/timedate/timedated.c
View File

@ -361,6 +361,7 @@ static int method_set_timezone(sd_bus_message *m, void *userdata, sd_bus_error *
m,
CAP_SYS_TIME,
"org.freedesktop.timedate1.set-timezone",
NULL,
interactive,
UID_INVALID,
&c->polkit_registry,
@ -428,6 +429,7 @@ static int method_set_local_rtc(sd_bus_message *m, void *userdata, sd_bus_error
m,
CAP_SYS_TIME,
"org.freedesktop.timedate1.set-local-rtc",
NULL,
interactive,
UID_INVALID,
&c->polkit_registry,
@ -543,6 +545,7 @@ static int method_set_time(sd_bus_message *m, void *userdata, sd_bus_error *erro
m,
CAP_SYS_TIME,
"org.freedesktop.timedate1.set-time",
NULL,
interactive,
UID_INVALID,
&c->polkit_registry,
@ -601,6 +604,7 @@ static int method_set_ntp(sd_bus_message *m, void *userdata, sd_bus_error *error
m,
CAP_SYS_TIME,
"org.freedesktop.timedate1.set-ntp",
NULL,
interactive,
UID_INVALID,
&c->polkit_registry,