Current wrapper function create_pair() is used to create a pair of connected links and returns two fds, but it does not support unix sockets.
Here we introduce socketpair() into create_pair(), which supports creating a pair of unix sockets, since the semantics of the two are the same.
Signed-off-by: Jiayuan Chen jiayuan.chen@linux.dev --- .../selftests/bpf/prog_tests/socket_helpers.h | 13 ++++++++++++- 1 file changed, 12 insertions(+), 1 deletion(-)
diff --git a/tools/testing/selftests/bpf/prog_tests/socket_helpers.h b/tools/testing/selftests/bpf/prog_tests/socket_helpers.h index 1bdfb79ef009..a805143dd84f 100644 --- a/tools/testing/selftests/bpf/prog_tests/socket_helpers.h +++ b/tools/testing/selftests/bpf/prog_tests/socket_helpers.h @@ -313,11 +313,22 @@ static inline int recv_timeout(int fd, void *buf, size_t len, int flags,
static inline int create_pair(int family, int sotype, int *p0, int *p1) { - __close_fd int s, c = -1, p = -1; + __close_fd int s = -1, c = -1, p = -1; struct sockaddr_storage addr; socklen_t len = sizeof(addr); int err;
+ if (family == AF_UNIX) { + int fds[2]; + + err = socketpair(family, sotype, 0, fds); + if (!err) { + *p0 = fds[0]; + *p1 = fds[1]; + } + return err; + } + s = socket_loopback(family, sotype); if (s < 0) return s;