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author | Krasnov Arseniy Vladimirovich <AVKrasnov@sberdevices.ru> | 2022-03-17 11:31:49 +0300 |
---|---|---|
committer | David S. Miller <davem@davemloft.net> | 2022-03-18 18:13:18 +0300 |
commit | efb3719f4ab0c4646ce2fe16c610e6a9bb0e1b08 (patch) | |
tree | 322f791f5caeaf1fe67066009e17b6431da909ec | |
parent | dca51fe7fbb11909cd80e81714f6de4515123a64 (diff) | |
download | linux-efb3719f4ab0c4646ce2fe16c610e6a9bb0e1b08.tar.xz |
af_vsock: SOCK_SEQPACKET receive timeout test
Test for receive timeout check: connection is established,
receiver sets timeout, but sender does nothing. Receiver's
'read()' call must return EAGAIN.
Signed-off-by: Krasnov Arseniy Vladimirovich <AVKrasnov@sberdevices.ru>
Reviewed-by: Stefano Garzarella <sgarzare@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
-rw-r--r-- | tools/testing/vsock/vsock_test.c | 84 |
1 files changed, 84 insertions, 0 deletions
diff --git a/tools/testing/vsock/vsock_test.c b/tools/testing/vsock/vsock_test.c index 2a3638c0a008..5b8561b80914 100644 --- a/tools/testing/vsock/vsock_test.c +++ b/tools/testing/vsock/vsock_test.c @@ -16,6 +16,7 @@ #include <linux/kernel.h> #include <sys/types.h> #include <sys/socket.h> +#include <time.h> #include "timeout.h" #include "control.h" @@ -391,6 +392,84 @@ static void test_seqpacket_msg_trunc_server(const struct test_opts *opts) close(fd); } +static time_t current_nsec(void) +{ + struct timespec ts; + + if (clock_gettime(CLOCK_REALTIME, &ts)) { + perror("clock_gettime(3) failed"); + exit(EXIT_FAILURE); + } + + return (ts.tv_sec * 1000000000ULL) + ts.tv_nsec; +} + +#define RCVTIMEO_TIMEOUT_SEC 1 +#define READ_OVERHEAD_NSEC 250000000 /* 0.25 sec */ + +static void test_seqpacket_timeout_client(const struct test_opts *opts) +{ + int fd; + struct timeval tv; + char dummy; + time_t read_enter_ns; + time_t read_overhead_ns; + + fd = vsock_seqpacket_connect(opts->peer_cid, 1234); + if (fd < 0) { + perror("connect"); + exit(EXIT_FAILURE); + } + + tv.tv_sec = RCVTIMEO_TIMEOUT_SEC; + tv.tv_usec = 0; + + if (setsockopt(fd, SOL_SOCKET, SO_RCVTIMEO, (void *)&tv, sizeof(tv)) == -1) { + perror("setsockopt 'SO_RCVTIMEO'"); + exit(EXIT_FAILURE); + } + + read_enter_ns = current_nsec(); + + if (read(fd, &dummy, sizeof(dummy)) != -1) { + fprintf(stderr, + "expected 'dummy' read(2) failure\n"); + exit(EXIT_FAILURE); + } + + if (errno != EAGAIN) { + perror("EAGAIN expected"); + exit(EXIT_FAILURE); + } + + read_overhead_ns = current_nsec() - read_enter_ns - + 1000000000ULL * RCVTIMEO_TIMEOUT_SEC; + + if (read_overhead_ns > READ_OVERHEAD_NSEC) { + fprintf(stderr, + "too much time in read(2), %lu > %i ns\n", + read_overhead_ns, READ_OVERHEAD_NSEC); + exit(EXIT_FAILURE); + } + + control_writeln("WAITDONE"); + close(fd); +} + +static void test_seqpacket_timeout_server(const struct test_opts *opts) +{ + int fd; + + fd = vsock_seqpacket_accept(VMADDR_CID_ANY, 1234, NULL); + if (fd < 0) { + perror("accept"); + exit(EXIT_FAILURE); + } + + control_expectln("WAITDONE"); + close(fd); +} + static struct test_case test_cases[] = { { .name = "SOCK_STREAM connection reset", @@ -431,6 +510,11 @@ static struct test_case test_cases[] = { .run_client = test_seqpacket_msg_trunc_client, .run_server = test_seqpacket_msg_trunc_server, }, + { + .name = "SOCK_SEQPACKET timeout", + .run_client = test_seqpacket_timeout_client, + .run_server = test_seqpacket_timeout_server, + }, {}, }; |