From: Geliang Tang tanggeliang@kylinos.cn
Include network_helpers.h in test_tcp_check_syncookie_user.c, use public helper start_server_addr() in it instead of the local defined function start_server(). This can avoid duplicate code.
Add a helper setsockopt_v6only() to set IPV6_V6ONLY sockopt, set it to setsockopt pointer of struct network_helper_opts, and pass it to start_server_setsockopt().
In order to use functions defined in network_helpers.c, Makefile needs to be updated too.
Signed-off-by: Geliang Tang tanggeliang@kylinos.cn --- tools/testing/selftests/bpf/Makefile | 1 + .../bpf/test_tcp_check_syncookie_user.c | 64 ++++++------------- 2 files changed, 21 insertions(+), 44 deletions(-)
diff --git a/tools/testing/selftests/bpf/Makefile b/tools/testing/selftests/bpf/Makefile index 2182a5af68c4..b5496ebec594 100644 --- a/tools/testing/selftests/bpf/Makefile +++ b/tools/testing/selftests/bpf/Makefile @@ -297,6 +297,7 @@ $(OUTPUT)/flow_dissector_load: $(TESTING_HELPERS) $(OUTPUT)/test_maps: $(TESTING_HELPERS) $(OUTPUT)/test_verifier: $(TESTING_HELPERS) $(CAP_HELPERS) $(UNPRIV_HELPERS) $(OUTPUT)/xsk.o: $(BPFOBJ) +$(OUTPUT)/test_tcp_check_syncookie_user: $(NETWORK_HELPERS)
BPFTOOL ?= $(DEFAULT_BPFTOOL) $(DEFAULT_BPFTOOL): $(wildcard $(BPFTOOLDIR)/*.[ch] $(BPFTOOLDIR)/Makefile) \ diff --git a/tools/testing/selftests/bpf/test_tcp_check_syncookie_user.c b/tools/testing/selftests/bpf/test_tcp_check_syncookie_user.c index 32df93747095..bf60d529d0e8 100644 --- a/tools/testing/selftests/bpf/test_tcp_check_syncookie_user.c +++ b/tools/testing/selftests/bpf/test_tcp_check_syncookie_user.c @@ -16,44 +16,7 @@ #include <bpf/libbpf.h>
#include "cgroup_helpers.h" - -static int start_server(const struct sockaddr *addr, socklen_t len, bool dual) -{ - int mode = !dual; - int fd; - - fd = socket(addr->sa_family, SOCK_STREAM, 0); - if (fd == -1) { - log_err("Failed to create server socket"); - goto out; - } - - if (addr->sa_family == AF_INET6) { - if (setsockopt(fd, IPPROTO_IPV6, IPV6_V6ONLY, (char *)&mode, - sizeof(mode)) == -1) { - log_err("Failed to set the dual-stack mode"); - goto close_out; - } - } - - if (bind(fd, addr, len) == -1) { - log_err("Failed to bind server socket"); - goto close_out; - } - - if (listen(fd, 128) == -1) { - log_err("Failed to listen on server socket"); - goto close_out; - } - - goto out; - -close_out: - close(fd); - fd = -1; -out: - return fd; -} +#include "network_helpers.h"
static int connect_to_server(const struct sockaddr *addr, socklen_t len) { @@ -216,8 +179,19 @@ static bool get_port(int server_fd, in_port_t *port) return true; }
+static int setsockopt_v6only(int fd, const void *optval, socklen_t optlen) +{ + return setsockopt(fd, IPPROTO_IPV6, IPV6_V6ONLY, optval, optlen); +} + int main(int argc, char **argv) { + int mode = false; + struct network_helper_opts opts = { + .setsockopt = setsockopt_v6only, + .optval = &mode, + .optlen = sizeof(mode), + }; struct sockaddr_in addr4; struct sockaddr_in6 addr6; struct sockaddr_in addr4dual; @@ -259,18 +233,20 @@ int main(int argc, char **argv) addr6dual.sin6_addr = in6addr_any; addr6dual.sin6_port = 0;
- server = start_server((const struct sockaddr *)&addr4, sizeof(addr4), - false); + server = start_server_addr(SOCK_STREAM, (struct sockaddr_storage *)&addr4, + sizeof(addr4), NULL); if (server == -1 || !get_port(server, &addr4.sin_port)) goto err;
- server_v6 = start_server((const struct sockaddr *)&addr6, - sizeof(addr6), false); + mode = true; + server_v6 = start_server_addr(SOCK_STREAM, (struct sockaddr_storage *)&addr6, + sizeof(addr6), &opts); if (server_v6 == -1 || !get_port(server_v6, &addr6.sin6_port)) goto err;
- server_dual = start_server((const struct sockaddr *)&addr6dual, - sizeof(addr6dual), true); + mode = false; + server_dual = start_server_addr(SOCK_STREAM, (struct sockaddr_storage *)&addr6dual, + sizeof(addr6dual), &opts); if (server_dual == -1 || !get_port(server_dual, &addr4dual.sin_port)) goto err;