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

   1 /* SPDX-License-Identifier: LGPL-2.1+ */
   2 /***
   3   Copyright 2013 Lennart Poettering
   4 ***/
   5
   6 #include "bus-match.h"
   7 #include "bus-message.h"
   8 #include "bus-slot.h"
   9 #include "bus-util.h"
  10 #include "log.h"
  11 #include "macro.h"
  12
  13 static bool mask[32];
  14
  15 static int filter(sd_bus_message *m, void *userdata, sd_bus_error *ret_error) {
  16         log_info("Ran %u", PTR_TO_UINT(userdata));
  17         assert_se(PTR_TO_UINT(userdata) < ELEMENTSOF(mask));
  18         mask[PTR_TO_UINT(userdata)] = true;
  19         return 0;
  20 }
  21
  22 static bool mask_contains(unsigned a[], unsigned n) {
  23         unsigned i, j;
  24
  25         for (i = 0; i < ELEMENTSOF(mask); i++) {
  26                 bool found = false;
  27
  28                 for (j = 0; j < n; j++)
  29                         if (a[j] == i) {
  30                                 found = true;
  31                                 break;
  32                         }
  33
  34                 if (found != mask[i])
  35                         return false;
  36         }
  37
  38         return true;
  39 }
  40
  41 static int match_add(sd_bus_slot *slots, struct bus_match_node *root, const char *match, int value) {
  42         struct bus_match_component *components = NULL;
  43         unsigned n_components = 0;
  44         sd_bus_slot *s;
  45         int r;
  46
  47         s = slots + value;
  48         zero(*s);
  49
  50         r = bus_match_parse(match, &components, &n_components);
  51         if (r < 0)
  52                 return r;
  53
  54         s->userdata = INT_TO_PTR(value);
  55         s->match_callback.callback = filter;
  56
  57         r = bus_match_add(root, components, n_components, &s->match_callback);
  58         bus_match_parse_free(components, n_components);
  59
  60         return r;
  61 }
  62
  63 static void test_match_scope(const char *match, enum bus_match_scope scope) {
  64         struct bus_match_component *components = NULL;
  65         unsigned n_components = 0;
  66
  67         assert_se(bus_match_parse(match, &components, &n_components) >= 0);
  68         assert_se(bus_match_get_scope(components, n_components) == scope);
  69         bus_match_parse_free(components, n_components);
  70 }
  71
  72 int main(int argc, char *argv[]) {
  73         struct bus_match_node root = {
  74                 .type = BUS_MATCH_ROOT,
  75         };
  76
  77         _cleanup_(sd_bus_message_unrefp) sd_bus_message *m = NULL;
  78         _cleanup_(sd_bus_flush_close_unrefp) sd_bus *bus = NULL;
  79         enum bus_match_node_type i;
  80         sd_bus_slot slots[19];
  81         int r;
  82
  83         r = sd_bus_open_user(&bus);
  84         if (r < 0)
  85                 return EXIT_TEST_SKIP;
  86
  87         assert_se(match_add(slots, &root, "arg2='wal\\'do',sender='foo',type='signal',interface='bar.x',", 1) >= 0);
  88         assert_se(match_add(slots, &root, "arg2='wal\\'do2',sender='foo',type='signal',interface='bar.x',", 2) >= 0);
  89         assert_se(match_add(slots, &root, "arg3='test',sender='foo',type='signal',interface='bar.x',", 3) >= 0);
  90         assert_se(match_add(slots, &root, "arg3='test',sender='foo',type='method_call',interface='bar.x',", 4) >= 0);
  91         assert_se(match_add(slots, &root, "", 5) >= 0);
  92         assert_se(match_add(slots, &root, "interface='quux.x'", 6) >= 0);
  93         assert_se(match_add(slots, &root, "interface='bar.x'", 7) >= 0);
  94         assert_se(match_add(slots, &root, "member='waldo',path='/foo/bar'", 8) >= 0);
  95         assert_se(match_add(slots, &root, "path='/foo/bar'", 9) >= 0);
  96         assert_se(match_add(slots, &root, "path_namespace='/foo'", 10) >= 0);
  97         assert_se(match_add(slots, &root, "path_namespace='/foo/quux'", 11) >= 0);
  98         assert_se(match_add(slots, &root, "arg1='two'", 12) >= 0);
  99         assert_se(match_add(slots, &root, "member='waldo',arg2path='/prefix/'", 13) >= 0);
 100         assert_se(match_add(slots, &root, "member=waldo,path='/foo/bar',arg3namespace='prefix'", 14) >= 0);
 101         assert_se(match_add(slots, &root, "arg4has='pi'", 15) >= 0);
 102         assert_se(match_add(slots, &root, "arg4has='pa'", 16) >= 0);
 103         assert_se(match_add(slots, &root, "arg4has='po'", 17) >= 0);
 104         assert_se(match_add(slots, &root, "arg4='pi'", 18) >= 0);
 105
 106         bus_match_dump(&root, 0);
 107
 108         assert_se(sd_bus_message_new_signal(bus, &m, "/foo/bar", "bar.x", "waldo") >= 0);
 109         assert_se(sd_bus_message_append(m, "ssssas", "one", "two", "/prefix/three", "prefix.four", 3, "pi", "pa", "po") >= 0);
 110         assert_se(sd_bus_message_seal(m, 1, 0) >= 0);
 111
 112         zero(mask);
 113         assert_se(bus_match_run(NULL, &root, m) == 0);
 114         assert_se(mask_contains((unsigned[]) { 9, 8, 7, 5, 10, 12, 13, 14, 15, 16, 17 }, 11));
 115
 116         assert_se(bus_match_remove(&root, &slots[8].match_callback) >= 0);
 117         assert_se(bus_match_remove(&root, &slots[13].match_callback) >= 0);
 118
 119         bus_match_dump(&root, 0);
 120
 121         zero(mask);
 122         assert_se(bus_match_run(NULL, &root, m) == 0);
 123         assert_se(mask_contains((unsigned[]) { 9, 5, 10, 12, 14, 7, 15, 16, 17 }, 9));
 124
 125         for (i = 0; i < _BUS_MATCH_NODE_TYPE_MAX; i++) {
 126                 char buf[32];
 127                 const char *x;
 128
 129                 assert_se(x = bus_match_node_type_to_string(i, buf, sizeof(buf)));
 130
 131                 if (i >= BUS_MATCH_MESSAGE_TYPE)
 132                         assert_se(bus_match_node_type_from_string(x, strlen(x)) == i);
 133         }
 134
 135         bus_match_free(&root);
 136
 137         test_match_scope("interface='foobar'", BUS_MATCH_GENERIC);
 138         test_match_scope("", BUS_MATCH_GENERIC);
 139         test_match_scope("interface='org.freedesktop.DBus.Local'", BUS_MATCH_LOCAL);
 140         test_match_scope("sender='org.freedesktop.DBus.Local'", BUS_MATCH_LOCAL);
 141         test_match_scope("member='gurke',path='/org/freedesktop/DBus/Local'", BUS_MATCH_LOCAL);
 142         test_match_scope("arg2='piep',sender='org.freedesktop.DBus',member='waldo'", BUS_MATCH_DRIVER);
 143
 144         return 0;
 145 }