cc65fe5e14
Matches that can only match against messages from the org.freedesktop.DBus.Local service (or the local interfaces or path) should never be installed server side, suppress them hence. Similar, on kdbus matches that can only match driver messages shouldn't be passed to the kernel.
163 lines
6.2 KiB
C
163 lines
6.2 KiB
C
/*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/
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/***
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This file is part of systemd.
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Copyright 2013 Lennart Poettering
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systemd is free software; you can redistribute it and/or modify it
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under the terms of the GNU Lesser General Public License as published by
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the Free Software Foundation; either version 2.1 of the License, or
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(at your option) any later version.
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systemd is distributed in the hope that it will be useful, but
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WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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Lesser General Public License for more details.
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You should have received a copy of the GNU Lesser General Public License
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along with systemd; If not, see <http://www.gnu.org/licenses/>.
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***/
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#include "log.h"
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#include "macro.h"
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#include "bus-match.h"
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#include "bus-message.h"
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#include "bus-util.h"
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#include "bus-slot.h"
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static bool mask[32];
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static int filter(sd_bus_message *m, void *userdata, sd_bus_error *ret_error) {
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log_info("Ran %u", PTR_TO_UINT(userdata));
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assert_se(PTR_TO_UINT(userdata) < ELEMENTSOF(mask));
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mask[PTR_TO_UINT(userdata)] = true;
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return 0;
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}
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static bool mask_contains(unsigned a[], unsigned n) {
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unsigned i, j;
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for (i = 0; i < ELEMENTSOF(mask); i++) {
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bool found = false;
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for (j = 0; j < n; j++)
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if (a[j] == i) {
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found = true;
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break;
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}
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if (found != mask[i])
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return false;
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}
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return true;
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}
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static int match_add(sd_bus_slot *slots, struct bus_match_node *root, const char *match, int value) {
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struct bus_match_component *components = NULL;
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unsigned n_components = 0;
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sd_bus_slot *s;
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int r;
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s = slots + value;
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zero(*s);
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r = bus_match_parse(match, &components, &n_components);
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if (r < 0)
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return r;
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s->userdata = INT_TO_PTR(value);
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s->match_callback.callback = filter;
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r = bus_match_add(root, components, n_components, &s->match_callback);
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bus_match_parse_free(components, n_components);
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return r;
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}
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static void test_match_scope(const char *match, enum bus_match_scope scope) {
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struct bus_match_component *components = NULL;
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unsigned n_components = 0;
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assert_se(bus_match_parse(match, &components, &n_components) >= 0);
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assert_se(bus_match_get_scope(components, n_components) == scope);
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bus_match_parse_free(components, n_components);
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}
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int main(int argc, char *argv[]) {
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struct bus_match_node root = {
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.type = BUS_MATCH_ROOT,
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};
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_cleanup_bus_message_unref_ sd_bus_message *m = NULL;
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_cleanup_bus_close_unref_ sd_bus *bus = NULL;
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enum bus_match_node_type i;
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sd_bus_slot slots[19];
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int r;
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r = sd_bus_open_system(&bus);
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if (r < 0)
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return EXIT_TEST_SKIP;
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assert_se(match_add(slots, &root, "arg2='wal\\'do',sender='foo',type='signal',interface='bar.x',", 1) >= 0);
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assert_se(match_add(slots, &root, "arg2='wal\\'do2',sender='foo',type='signal',interface='bar.x',", 2) >= 0);
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assert_se(match_add(slots, &root, "arg3='test',sender='foo',type='signal',interface='bar.x',", 3) >= 0);
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assert_se(match_add(slots, &root, "arg3='test',sender='foo',type='method_call',interface='bar.x',", 4) >= 0);
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assert_se(match_add(slots, &root, "", 5) >= 0);
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assert_se(match_add(slots, &root, "interface='quux.x'", 6) >= 0);
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assert_se(match_add(slots, &root, "interface='bar.x'", 7) >= 0);
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assert_se(match_add(slots, &root, "member='waldo',path='/foo/bar'", 8) >= 0);
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assert_se(match_add(slots, &root, "path='/foo/bar'", 9) >= 0);
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assert_se(match_add(slots, &root, "path_namespace='/foo'", 10) >= 0);
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assert_se(match_add(slots, &root, "path_namespace='/foo/quux'", 11) >= 0);
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assert_se(match_add(slots, &root, "arg1='two'", 12) >= 0);
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assert_se(match_add(slots, &root, "member='waldo',arg2path='/prefix/'", 13) >= 0);
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assert_se(match_add(slots, &root, "member=waldo,path='/foo/bar',arg3namespace='prefix'", 14) >= 0);
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assert_se(match_add(slots, &root, "arg4='pi'", 15) >= 0);
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assert_se(match_add(slots, &root, "arg4='pa'", 16) >= 0);
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assert_se(match_add(slots, &root, "arg4='po'", 17) >= 0);
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assert_se(match_add(slots, &root, "arg4='pu'", 18) >= 0);
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bus_match_dump(&root, 0);
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assert_se(sd_bus_message_new_signal(bus, &m, "/foo/bar", "bar.x", "waldo") >= 0);
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assert_se(sd_bus_message_append(m, "ssssas", "one", "two", "/prefix/three", "prefix.four", 3, "pi", "pa", "po") >= 0);
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assert_se(bus_message_seal(m, 1, 0) >= 0);
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zero(mask);
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assert_se(bus_match_run(NULL, &root, m) == 0);
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assert_se(mask_contains((unsigned[]) { 9, 8, 7, 5, 10, 12, 13, 14, 15, 16, 17 }, 11));
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assert_se(bus_match_remove(&root, &slots[8].match_callback) >= 0);
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assert_se(bus_match_remove(&root, &slots[13].match_callback) >= 0);
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bus_match_dump(&root, 0);
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zero(mask);
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assert_se(bus_match_run(NULL, &root, m) == 0);
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assert_se(mask_contains((unsigned[]) { 9, 5, 10, 12, 14, 7, 15, 16, 17 }, 9));
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for (i = 0; i < _BUS_MATCH_NODE_TYPE_MAX; i++) {
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char buf[32];
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const char *x;
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assert_se(x = bus_match_node_type_to_string(i, buf, sizeof(buf)));
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if (i >= BUS_MATCH_MESSAGE_TYPE)
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assert_se(bus_match_node_type_from_string(x, strlen(x)) == i);
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}
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bus_match_free(&root);
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test_match_scope("interface='foobar'", BUS_MATCH_GENERIC);
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test_match_scope("", BUS_MATCH_GENERIC);
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test_match_scope("interface='org.freedesktop.DBus.Local'", BUS_MATCH_LOCAL);
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test_match_scope("sender='org.freedesktop.DBus.Local'", BUS_MATCH_LOCAL);
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test_match_scope("member='gurke',path='/org/freedesktop/DBus/Local'", BUS_MATCH_LOCAL);
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test_match_scope("arg2='piep',sender='org.freedesktop.DBus',member='waldo'", BUS_MATCH_DRIVER);
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return 0;
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}
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