diff options
Diffstat (limited to 'tools/testing/selftests/net/psock_fanout.c')
| -rw-r--r-- | tools/testing/selftests/net/psock_fanout.c | 93 |
1 files changed, 83 insertions, 10 deletions
diff --git a/tools/testing/selftests/net/psock_fanout.c b/tools/testing/selftests/net/psock_fanout.c index e62bb354820c..989f917068d1 100644 --- a/tools/testing/selftests/net/psock_fanout.c +++ b/tools/testing/selftests/net/psock_fanout.c @@ -71,7 +71,7 @@ /* Open a socket in a given fanout mode. * @return -1 if mode is bad, a valid socket otherwise */ -static int sock_fanout_open(uint16_t typeflags, int num_packets) +static int sock_fanout_open(uint16_t typeflags, uint16_t group_id) { int fd, val; @@ -81,8 +81,7 @@ static int sock_fanout_open(uint16_t typeflags, int num_packets) exit(1); } - /* fanout group ID is always 0: tests whether old groups are deleted */ - val = ((int) typeflags) << 16; + val = (((int) typeflags) << 16) | group_id; if (setsockopt(fd, SOL_PACKET, PACKET_FANOUT, &val, sizeof(val))) { if (close(fd)) { perror("close packet"); @@ -113,6 +112,20 @@ static void sock_fanout_set_cbpf(int fd) } } +static void sock_fanout_getopts(int fd, uint16_t *typeflags, uint16_t *group_id) +{ + int sockopt; + socklen_t sockopt_len = sizeof(sockopt); + + if (getsockopt(fd, SOL_PACKET, PACKET_FANOUT, + &sockopt, &sockopt_len)) { + perror("failed to getsockopt"); + exit(1); + } + *typeflags = sockopt >> 16; + *group_id = sockopt & 0xfffff; +} + static void sock_fanout_set_ebpf(int fd) { const int len_off = __builtin_offsetof(struct __sk_buff, len); @@ -241,26 +254,26 @@ static void test_control_group(void) fprintf(stderr, "test: control multiple sockets\n"); - fds[0] = sock_fanout_open(PACKET_FANOUT_HASH, 20); + fds[0] = sock_fanout_open(PACKET_FANOUT_HASH, 0); if (fds[0] == -1) { fprintf(stderr, "ERROR: failed to open HASH socket\n"); exit(1); } if (sock_fanout_open(PACKET_FANOUT_HASH | - PACKET_FANOUT_FLAG_DEFRAG, 10) != -1) { + PACKET_FANOUT_FLAG_DEFRAG, 0) != -1) { fprintf(stderr, "ERROR: joined group with wrong flag defrag\n"); exit(1); } if (sock_fanout_open(PACKET_FANOUT_HASH | - PACKET_FANOUT_FLAG_ROLLOVER, 10) != -1) { + PACKET_FANOUT_FLAG_ROLLOVER, 0) != -1) { fprintf(stderr, "ERROR: joined group with wrong flag ro\n"); exit(1); } - if (sock_fanout_open(PACKET_FANOUT_CPU, 10) != -1) { + if (sock_fanout_open(PACKET_FANOUT_CPU, 0) != -1) { fprintf(stderr, "ERROR: joined group with wrong mode\n"); exit(1); } - fds[1] = sock_fanout_open(PACKET_FANOUT_HASH, 20); + fds[1] = sock_fanout_open(PACKET_FANOUT_HASH, 0); if (fds[1] == -1) { fprintf(stderr, "ERROR: failed to join group\n"); exit(1); @@ -271,6 +284,61 @@ static void test_control_group(void) } } +/* Test creating a unique fanout group ids */ +static void test_unique_fanout_group_ids(void) +{ + int fds[3]; + uint16_t typeflags, first_group_id, second_group_id; + + fprintf(stderr, "test: unique ids\n"); + + fds[0] = sock_fanout_open(PACKET_FANOUT_HASH | + PACKET_FANOUT_FLAG_UNIQUEID, 0); + if (fds[0] == -1) { + fprintf(stderr, "ERROR: failed to create a unique id group.\n"); + exit(1); + } + + sock_fanout_getopts(fds[0], &typeflags, &first_group_id); + if (typeflags != PACKET_FANOUT_HASH) { + fprintf(stderr, "ERROR: unexpected typeflags %x\n", typeflags); + exit(1); + } + + if (sock_fanout_open(PACKET_FANOUT_CPU, first_group_id) != -1) { + fprintf(stderr, "ERROR: joined group with wrong type.\n"); + exit(1); + } + + fds[1] = sock_fanout_open(PACKET_FANOUT_HASH, first_group_id); + if (fds[1] == -1) { + fprintf(stderr, + "ERROR: failed to join previously created group.\n"); + exit(1); + } + + fds[2] = sock_fanout_open(PACKET_FANOUT_HASH | + PACKET_FANOUT_FLAG_UNIQUEID, 0); + if (fds[2] == -1) { + fprintf(stderr, + "ERROR: failed to create a second unique id group.\n"); + exit(1); + } + + sock_fanout_getopts(fds[2], &typeflags, &second_group_id); + if (sock_fanout_open(PACKET_FANOUT_HASH | PACKET_FANOUT_FLAG_UNIQUEID, + second_group_id) != -1) { + fprintf(stderr, + "ERROR: specified a group id when requesting unique id\n"); + exit(1); + } + + if (close(fds[0]) || close(fds[1]) || close(fds[2])) { + fprintf(stderr, "ERROR: closing sockets\n"); + exit(1); + } +} + static int test_datapath(uint16_t typeflags, int port_off, const int expect1[], const int expect2[]) { @@ -281,8 +349,8 @@ static int test_datapath(uint16_t typeflags, int port_off, fprintf(stderr, "test: datapath 0x%hx\n", typeflags); - fds[0] = sock_fanout_open(typeflags, 20); - fds[1] = sock_fanout_open(typeflags, 20); + fds[0] = sock_fanout_open(typeflags, 0); + fds[1] = sock_fanout_open(typeflags, 0); if (fds[0] == -1 || fds[1] == -1) { fprintf(stderr, "ERROR: failed open\n"); exit(1); @@ -349,10 +417,12 @@ int main(int argc, char **argv) const int expect_cpu0[2][2] = { { 20, 0 }, { 20, 0 } }; const int expect_cpu1[2][2] = { { 0, 20 }, { 0, 20 } }; const int expect_bpf[2][2] = { { 15, 5 }, { 15, 20 } }; + const int expect_uniqueid[2][2] = { { 20, 20}, { 20, 20 } }; int port_off = 2, tries = 5, ret; test_control_single(); test_control_group(); + test_unique_fanout_group_ids(); /* find a set of ports that do not collide onto the same socket */ ret = test_datapath(PACKET_FANOUT_HASH, port_off, @@ -383,6 +453,9 @@ int main(int argc, char **argv) ret |= test_datapath(PACKET_FANOUT_CPU, port_off, expect_cpu1[0], expect_cpu1[1]); + ret |= test_datapath(PACKET_FANOUT_FLAG_UNIQUEID, port_off, + expect_uniqueid[0], expect_uniqueid[1]); + if (ret) return 1; |