From d950625c81e115e275458b4074f493bf4d1f15de Mon Sep 17 00:00:00 2001 From: Cong Wang Date: Sun, 4 Jul 2021 12:02:49 -0700 Subject: selftests/bpf: Factor out udp_socketpair() Factor out a common helper udp_socketpair() which creates a pair of connected UDP sockets. Signed-off-by: Cong Wang Signed-off-by: Alexei Starovoitov Link: https://lore.kernel.org/bpf/20210704190252.11866-9-xiyou.wangcong@gmail.com --- .../selftests/bpf/prog_tests/sockmap_listen.c | 78 +++++++++++----------- 1 file changed, 40 insertions(+), 38 deletions(-) (limited to 'tools') diff --git a/tools/testing/selftests/bpf/prog_tests/sockmap_listen.c b/tools/testing/selftests/bpf/prog_tests/sockmap_listen.c index b8934ae694e5..52d11959e05b 100644 --- a/tools/testing/selftests/bpf/prog_tests/sockmap_listen.c +++ b/tools/testing/selftests/bpf/prog_tests/sockmap_listen.c @@ -1605,33 +1605,27 @@ static void test_reuseport(struct test_sockmap_listen *skel, } } -static void udp_redir_to_connected(int family, int sotype, int sock_mapfd, - int verd_mapfd, enum redir_mode mode) +static int udp_socketpair(int family, int *s, int *c) { - const char *log_prefix = redir_mode_str(mode); struct sockaddr_storage addr; - int c0, c1, p0, p1; - unsigned int pass; - int retries = 100; socklen_t len; - int err, n; - u64 value; - u32 key; - char b; - - zero_verdict_count(verd_mapfd); + int p0, c0; + int err; - p0 = socket_loopback(family, sotype | SOCK_NONBLOCK); + p0 = socket_loopback(family, SOCK_DGRAM | SOCK_NONBLOCK); if (p0 < 0) - return; + return p0; + len = sizeof(addr); err = xgetsockname(p0, sockaddr(&addr), &len); if (err) goto close_peer0; - c0 = xsocket(family, sotype | SOCK_NONBLOCK, 0); - if (c0 < 0) + c0 = xsocket(family, SOCK_DGRAM | SOCK_NONBLOCK, 0); + if (c0 < 0) { + err = c0; goto close_peer0; + } err = xconnect(c0, sockaddr(&addr), len); if (err) goto close_cli0; @@ -1642,25 +1636,37 @@ static void udp_redir_to_connected(int family, int sotype, int sock_mapfd, if (err) goto close_cli0; - p1 = socket_loopback(family, sotype | SOCK_NONBLOCK); - if (p1 < 0) - goto close_cli0; - err = xgetsockname(p1, sockaddr(&addr), &len); - if (err) - goto close_cli0; + *s = p0; + *c = c0; + return 0; - c1 = xsocket(family, sotype | SOCK_NONBLOCK, 0); - if (c1 < 0) - goto close_peer1; - err = xconnect(c1, sockaddr(&addr), len); - if (err) - goto close_cli1; - err = xgetsockname(c1, sockaddr(&addr), &len); +close_cli0: + xclose(c0); +close_peer0: + xclose(p0); + return err; +} + +static void udp_redir_to_connected(int family, int sock_mapfd, int verd_mapfd, + enum redir_mode mode) +{ + const char *log_prefix = redir_mode_str(mode); + int c0, c1, p0, p1; + unsigned int pass; + int retries = 100; + int err, n; + u64 value; + u32 key; + char b; + + zero_verdict_count(verd_mapfd); + + err = udp_socketpair(family, &p0, &c0); if (err) - goto close_cli1; - err = xconnect(p1, sockaddr(&addr), len); + return; + err = udp_socketpair(family, &p1, &c1); if (err) - goto close_cli1; + goto close_cli0; key = 0; value = p0; @@ -1701,11 +1707,9 @@ again: close_cli1: xclose(c1); -close_peer1: xclose(p1); close_cli0: xclose(c0); -close_peer0: xclose(p0); } @@ -1722,11 +1726,9 @@ static void udp_skb_redir_to_connected(struct test_sockmap_listen *skel, return; skel->bss->test_ingress = false; - udp_redir_to_connected(family, SOCK_DGRAM, sock_map, verdict_map, - REDIR_EGRESS); + udp_redir_to_connected(family, sock_map, verdict_map, REDIR_EGRESS); skel->bss->test_ingress = true; - udp_redir_to_connected(family, SOCK_DGRAM, sock_map, verdict_map, - REDIR_INGRESS); + udp_redir_to_connected(family, sock_map, verdict_map, REDIR_INGRESS); xbpf_prog_detach2(verdict, sock_map, BPF_SK_SKB_VERDICT); } -- cgit v1.2.3