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Miller" , Jakub Kicinski , Jesper Dangaard Brouer , Daan De Meyer Copy recv_msg_from_client helper from test_sock_addr self test in order to use it in the sock_addr_kern test program. Signed-off-by: Jordan Rife --- tools/testing/selftests/bpf/network_helpers.c | 31 +++++++++++++++++++ tools/testing/selftests/bpf/network_helpers.h | 1 + 2 files changed, 32 insertions(+) diff --git a/tools/testing/selftests/bpf/network_helpers.c b/tools/testing/selftests/bpf/network_helpers.c index 8eae4afe3ec3d..ef0a94d9e9d5c 100644 --- a/tools/testing/selftests/bpf/network_helpers.c +++ b/tools/testing/selftests/bpf/network_helpers.c @@ -498,6 +498,37 @@ int get_socket_local_port(int sock_fd) return -1; } +int recvmsg_from_client(int sockfd, struct sockaddr_storage *src_addr) +{ + struct timeval tv; + struct msghdr hdr; + struct iovec iov; + char data[64]; + fd_set rfds; + + FD_ZERO(&rfds); + FD_SET(sockfd, &rfds); + + tv.tv_sec = 2; + tv.tv_usec = 0; + + if (select(sockfd + 1, &rfds, NULL, NULL, &tv) <= 0 || + !FD_ISSET(sockfd, &rfds)) + return -1; + + memset(&iov, 0, sizeof(iov)); + iov.iov_base = data; + iov.iov_len = sizeof(data); + + memset(&hdr, 0, sizeof(hdr)); + hdr.msg_name = src_addr; + hdr.msg_namelen = sizeof(struct sockaddr_storage); + hdr.msg_iov = &iov; + hdr.msg_iovlen = 1; + + return recvmsg(sockfd, &hdr, 0); +} + int cmp_addr(const struct sockaddr_storage *addr1, socklen_t addr1_len, const struct sockaddr_storage *addr2, socklen_t addr2_len, bool cmp_port) diff --git a/tools/testing/selftests/bpf/network_helpers.h b/tools/testing/selftests/bpf/network_helpers.h index a4a458c858d59..f88f2470e3fcb 100644 --- a/tools/testing/selftests/bpf/network_helpers.h +++ b/tools/testing/selftests/bpf/network_helpers.h @@ -61,6 +61,7 @@ int make_sockaddr(int family, const char *addr_str, __u16 port, struct sockaddr_storage *addr, socklen_t *len); char *ping_command(int family); int get_socket_local_port(int sock_fd); +int recvmsg_from_client(int sockfd, struct sockaddr_storage *src_addr); int cmp_addr(const struct sockaddr_storage *addr1, socklen_t addr1_len, const struct sockaddr_storage *addr2, socklen_t addr2_len, bool cmp_port);