1 // Tests for POSIX message queue functionality.
12 #include "capsicum-test.h"
14 // Run a test case in a forked process, possibly cleaning up a
15 // message after completion
16 #define FORK_TEST_ON_MQ(test_case_name, test_name, test_mq) \
17 static void test_case_name##_##test_name##_ForkTest(); \
18 TEST(test_case_name, test_name ## Forked) { \
19 _RUN_FORKED_FN(test_case_name##_##test_name##_ForkTest, \
20 #test_case_name, #test_name); \
21 const char *mqname = test_mq; \
22 if (mqname) mq_unlink_(mqname); \
24 static void test_case_name##_##test_name##_ForkTest()
27 void seen_it_done_it(int) {
31 FORK_TEST_ON_MQ(PosixMqueue, CapMode, "/cap_mq") {
32 int mq = mq_open_("/cap_mq", O_RDWR|O_CREAT, 0644, NULL);
33 // On FreeBSD, turn on message queue support with:
34 // - 'kldload mqueuefs'
35 // - 'options P1003_1B_MQUEUE' in kernel build config.
36 if (mq < 0 && errno == ENOSYS) {
37 TEST_SKIPPED("mq_open -> -ENOSYS");
42 cap_rights_init(&r_read, CAP_READ);
44 cap_rights_init(&r_write, CAP_WRITE);
46 cap_rights_init(&r_poll, CAP_EVENT);
48 int cap_read_mq = dup(mq);
49 EXPECT_OK(cap_read_mq);
50 EXPECT_OK(cap_rights_limit(cap_read_mq, &r_read));
51 int cap_write_mq = dup(mq);
52 EXPECT_OK(cap_write_mq);
53 EXPECT_OK(cap_rights_limit(cap_write_mq, &r_write));
54 int cap_poll_mq = dup(mq);
55 EXPECT_OK(cap_poll_mq);
56 EXPECT_OK(cap_rights_limit(cap_poll_mq, &r_poll));
57 EXPECT_OK(mq_close_(mq));
59 signal(SIGUSR2, seen_it_done_it);
61 EXPECT_OK(cap_enter()); // Enter capability mode
63 // Can no longer access the message queue via the POSIX IPC namespace.
64 EXPECT_CAPMODE(mq_open_("/cap_mw", O_RDWR|O_CREAT, 0644, NULL));
67 se.sigev_notify = SIGEV_SIGNAL;
68 se.sigev_signo = SIGUSR2;
69 EXPECT_OK(mq_notify_(cap_poll_mq, &se));
70 EXPECT_NOTCAPABLE(mq_notify_(cap_read_mq, &se));
71 EXPECT_NOTCAPABLE(mq_notify_(cap_write_mq, &se));
73 const unsigned int kPriority = 10;
74 const char* message = "xyzzy";
78 EXPECT_OK(mq_timedsend_(cap_write_mq, message, strlen(message) + 1, kPriority, &ts));
79 EXPECT_NOTCAPABLE(mq_timedsend_(cap_read_mq, message, strlen(message) + 1, kPriority, &ts));
81 sleep(1); // Give the notification a chance to arrive.
85 EXPECT_OK(mq_getattr_(cap_poll_mq, &mqa));
86 EXPECT_OK(mq_setattr_(cap_poll_mq, &mqa, NULL));
87 EXPECT_NOTCAPABLE(mq_getattr_(cap_write_mq, &mqa));
89 char* buffer = (char *)malloc(mqa.mq_msgsize);
90 unsigned int priority;
91 EXPECT_NOTCAPABLE(mq_timedreceive_(cap_write_mq, buffer, mqa.mq_msgsize, &priority, &ts));
92 EXPECT_OK(mq_timedreceive_(cap_read_mq, buffer, mqa.mq_msgsize, &priority, &ts));
93 EXPECT_EQ(std::string(message), std::string(buffer));
94 EXPECT_EQ(kPriority, priority);