src/libsystemd/sd-bus/test-bus-match.c

   1 /* SPDX-License-Identifier: LGPL-2.1+ */
   2
   3 #include "bus-match.h"
   4 #include "bus-message.h"
   5 #include "bus-slot.h"
   6 #include "bus-util.h"
   7 #include "log.h"
   8 #include "macro.h"
   9 #include "tests.h"
  10
  11 static bool mask[32];
  12
  13 static int filter(sd_bus_message *m, void *userdata, sd_bus_error *ret_error) {
  14         log_info("Ran %u", PTR_TO_UINT(userdata));
  15         assert_se(PTR_TO_UINT(userdata) < ELEMENTSOF(mask));
  16         mask[PTR_TO_UINT(userdata)] = true;
  17         return 0;
  18 }
  19
  20 static bool mask_contains(unsigned a[], unsigned n) {
  21         unsigned i, j;
  22
  23         for (i = 0; i < ELEMENTSOF(mask); i++) {
  24                 bool found = false;
  25
  26                 for (j = 0; j < n; j++)
  27                         if (a[j] == i) {
  28                                 found = true;
  29                                 break;
  30                         }
  31
  32                 if (found != mask[i])
  33                         return false;
  34         }
  35
  36         return true;
  37 }
  38
  39 static int match_add(sd_bus_slot *slots, struct bus_match_node *root, const char *match, int value) {
  40         struct bus_match_component *components = NULL;
  41         unsigned n_components = 0;
  42         sd_bus_slot *s;
  43         int r;
  44
  45         s = slots + value;
  46         zero(*s);
  47
  48         r = bus_match_parse(match, &components, &n_components);
  49         if (r < 0)
  50                 return r;
  51
  52         s->userdata = INT_TO_PTR(value);
  53         s->match_callback.callback = filter;
  54
  55         r = bus_match_add(root, components, n_components, &s->match_callback);
  56         bus_match_parse_free(components, n_components);
  57
  58         return r;
  59 }
  60
  61 static void test_match_scope(const char *match, enum bus_match_scope scope) {
  62         struct bus_match_component *components = NULL;
  63         unsigned n_components = 0;
  64
  65         assert_se(bus_match_parse(match, &components, &n_components) >= 0);
  66         assert_se(bus_match_get_scope(components, n_components) == scope);
  67         bus_match_parse_free(components, n_components);
  68 }
  69
  70 int main(int argc, char *argv[]) {
  71         struct bus_match_node root = {
  72                 .type = BUS_MATCH_ROOT,
  73         };
  74
  75         _cleanup_(sd_bus_message_unrefp) sd_bus_message *m = NULL;
  76         _cleanup_(sd_bus_flush_close_unrefp) sd_bus *bus = NULL;
  77         enum bus_match_node_type i;
  78         sd_bus_slot slots[19];
  79         int r;
  80
  81         test_setup_logging(LOG_INFO);
  82
  83         r = sd_bus_open_user(&bus);
  84         if (r < 0)
  85                 r = sd_bus_open_system(&bus);
  86         if (r < 0)
  87                 return log_tests_skipped("Failed to connect to bus");
  88
  89         assert_se(match_add(slots, &root, "arg2='wal\\'do',sender='foo',type='signal',interface='bar.x',", 1) >= 0);
  90         assert_se(match_add(slots, &root, "arg2='wal\\'do2',sender='foo',type='signal',interface='bar.x',", 2) >= 0);
  91         assert_se(match_add(slots, &root, "arg3='test',sender='foo',type='signal',interface='bar.x',", 3) >= 0);
  92         assert_se(match_add(slots, &root, "arg3='test',sender='foo',type='method_call',interface='bar.x',", 4) >= 0);
  93         assert_se(match_add(slots, &root, "", 5) >= 0);
  94         assert_se(match_add(slots, &root, "interface='quux.x'", 6) >= 0);
  95         assert_se(match_add(slots, &root, "interface='bar.x'", 7) >= 0);
  96         assert_se(match_add(slots, &root, "member='waldo',path='/foo/bar'", 8) >= 0);
  97         assert_se(match_add(slots, &root, "path='/foo/bar'", 9) >= 0);
  98         assert_se(match_add(slots, &root, "path_namespace='/foo'", 10) >= 0);
  99         assert_se(match_add(slots, &root, "path_namespace='/foo/quux'", 11) >= 0);
 100         assert_se(match_add(slots, &root, "arg1='two'", 12) >= 0);
 101         assert_se(match_add(slots, &root, "member='waldo',arg2path='/prefix/'", 13) >= 0);
 102         assert_se(match_add(slots, &root, "member=waldo,path='/foo/bar',arg3namespace='prefix'", 14) >= 0);
 103         assert_se(match_add(slots, &root, "arg4has='pi'", 15) >= 0);
 104         assert_se(match_add(slots, &root, "arg4has='pa'", 16) >= 0);
 105         assert_se(match_add(slots, &root, "arg4has='po'", 17) >= 0);
 106         assert_se(match_add(slots, &root, "arg4='pi'", 18) >= 0);
 107
 108         bus_match_dump(&root, 0);
 109
 110         assert_se(sd_bus_message_new_signal(bus, &m, "/foo/bar", "bar.x", "waldo") >= 0);
 111         assert_se(sd_bus_message_append(m, "ssssas", "one", "two", "/prefix/three", "prefix.four", 3, "pi", "pa", "po") >= 0);
 112         assert_se(sd_bus_message_seal(m, 1, 0) >= 0);
 113
 114         zero(mask);
 115         assert_se(bus_match_run(NULL, &root, m) == 0);
 116         assert_se(mask_contains((unsigned[]) { 9, 8, 7, 5, 10, 12, 13, 14, 15, 16, 17 }, 11));
 117
 118         assert_se(bus_match_remove(&root, &slots[8].match_callback) >= 0);
 119         assert_se(bus_match_remove(&root, &slots[13].match_callback) >= 0);
 120
 121         bus_match_dump(&root, 0);
 122
 123         zero(mask);
 124         assert_se(bus_match_run(NULL, &root, m) == 0);
 125         assert_se(mask_contains((unsigned[]) { 9, 5, 10, 12, 14, 7, 15, 16, 17 }, 9));
 126
 127         for (i = 0; i < _BUS_MATCH_NODE_TYPE_MAX; i++) {
 128                 char buf[32];
 129                 const char *x;
 130
 131                 assert_se(x = bus_match_node_type_to_string(i, buf, sizeof(buf)));
 132
 133                 if (i >= BUS_MATCH_MESSAGE_TYPE)
 134                         assert_se(bus_match_node_type_from_string(x, strlen(x)) == i);
 135         }
 136
 137         bus_match_free(&root);
 138
 139         test_match_scope("interface='foobar'", BUS_MATCH_GENERIC);
 140         test_match_scope("", BUS_MATCH_GENERIC);
 141         test_match_scope("interface='org.freedesktop.DBus.Local'", BUS_MATCH_LOCAL);
 142         test_match_scope("sender='org.freedesktop.DBus.Local'", BUS_MATCH_LOCAL);
 143         test_match_scope("member='gurke',path='/org/freedesktop/DBus/Local'", BUS_MATCH_LOCAL);
 144         test_match_scope("arg2='piep',sender='org.freedesktop.DBus',member='waldo'", BUS_MATCH_DRIVER);
 145
 146         return 0;
 147 }