Module: wine Branch: master Commit: 86f084931bc90a86c6f514e1d64b71a33b9bdfa8 URL: https://gitlab.winehq.org/wine/wine/-/commit/86f084931bc90a86c6f514e1d64b71a...
Author: Paul Gofman pgofman@codeweavers.com Date: Tue Jul 5 14:13:55 2022 -0500
ws2_32/tests: Test ICMP.
Signed-off-by: Paul Gofman pgofman@codeweavers.com
---
dlls/ws2_32/tests/sock.c | 150 +++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 150 insertions(+)
diff --git a/dlls/ws2_32/tests/sock.c b/dlls/ws2_32/tests/sock.c index f611fe6ed9d..d24556ccdd2 100644 --- a/dlls/ws2_32/tests/sock.c +++ b/dlls/ws2_32/tests/sock.c @@ -12816,6 +12816,155 @@ static void test_tcp_reset(void) CloseHandle(overlapped.hEvent); }
+struct icmp_hdr +{ + BYTE type; + BYTE code; + UINT16 checksum; + union + { + struct + { + UINT16 id; + UINT16 sequence; + } echo; + } un; +}; + +struct ip_hdr +{ + BYTE v_hl; /* version << 4 | hdr_len */ + BYTE tos; + UINT16 tot_len; + UINT16 id; + UINT16 frag_off; + BYTE ttl; + BYTE protocol; + UINT16 checksum; + ULONG saddr; + ULONG daddr; +}; + +/* rfc 1071 checksum */ +static unsigned short chksum(BYTE *data, unsigned int count) +{ + unsigned int sum = 0, carry = 0; + unsigned short check, s; + + while (count > 1) + { + s = *(unsigned short *)data; + data += 2; + sum += carry; + sum += s; + carry = s > sum; + count -= 2; + } + sum += carry; /* This won't produce another carry */ + sum = (sum & 0xffff) + (sum >> 16); + + if (count) sum += *data; /* LE-only */ + + sum = (sum & 0xffff) + (sum >> 16); + /* fold in any carry */ + sum = (sum & 0xffff) + (sum >> 16); + + check = ~sum; + return check; +} + +static void test_icmp(void) +{ + static const unsigned int ping_data = 0xdeadbeef; + struct icmp_hdr *icmp_h; + BYTE send_buf[sizeof(struct icmp_hdr) + sizeof(ping_data)]; + UINT16 recv_checksum, checksum; + unsigned int reply_data; + struct sockaddr_in sa; + struct ip_hdr *ip_h; + struct in_addr addr; + BYTE recv_buf[256]; + SOCKET s; + int ret; + + s = WSASocketA(AF_INET, SOCK_RAW, IPPROTO_ICMP, NULL, 0, 0); + if (s == INVALID_SOCKET) + { + ret = WSAGetLastError(); + ok(ret == WSAEACCES, "Expected 10013, received %d\n", ret); + skip("SOCK_RAW is not supported\n"); + return; + } + + icmp_h = (struct icmp_hdr *)send_buf; + icmp_h->type = ICMP4_ECHO_REQUEST; + icmp_h->code = 0; + icmp_h->checksum = 0; + icmp_h->un.echo.id = 0xbeaf; /* will be overwritten for linux ping socks */ + icmp_h->un.echo.sequence = 1; + *(unsigned int *)(icmp_h + 1) = ping_data; + icmp_h->checksum = chksum(send_buf, sizeof(send_buf)); + + memset(&sa, 0, sizeof(sa)); + sa.sin_family = AF_INET; + sa.sin_port = 0; + sa.sin_addr.s_addr = inet_addr("127.0.0.1"); + + ret = sendto(s, (char *)send_buf, sizeof(send_buf), 0, (struct sockaddr*)&sa, sizeof(sa)); + ok(ret == sizeof(send_buf), "got %d, error %d.\n", ret, WSAGetLastError()); + + ret = recv(s, (char *)recv_buf, sizeof(struct ip_hdr) + sizeof(send_buf) - 1, 0); + ok(ret == -1, "got %d\n", ret); + ok(WSAGetLastError() == WSAEMSGSIZE, "got %d\n", WSAGetLastError()); + + icmp_h->un.echo.sequence = 2; + icmp_h->checksum = 0; + icmp_h->checksum = chksum(send_buf, sizeof(send_buf)); + + ret = sendto(s, (char *)send_buf, sizeof(send_buf), 0, (struct sockaddr*)&sa, sizeof(sa)); + ok(ret != SOCKET_ERROR, "got error %d.\n", WSAGetLastError()); + + memset(recv_buf, 0xcc, sizeof(recv_buf)); + ret = recv(s, (char *)recv_buf, sizeof(recv_buf), 0); + ok(ret == sizeof(struct ip_hdr) + sizeof(send_buf), "got %d\n", ret); + + ip_h = (struct ip_hdr *)recv_buf; + icmp_h = (struct icmp_hdr *)(ip_h + 1); + reply_data = *(unsigned int *)(icmp_h + 1); + + ok(ip_h->v_hl == ((4 << 4) | (sizeof(*ip_h) >> 2)), "got v_hl %#x.\n", ip_h->v_hl); + ok(ntohs(ip_h->tot_len) == sizeof(struct ip_hdr) + sizeof(send_buf), + "got tot_len %#x.\n", ntohs(ip_h->tot_len)); + + recv_checksum = ip_h->checksum; + ip_h->checksum = 0; + checksum = chksum((BYTE *)ip_h, sizeof(*ip_h)); + /* Checksum is 0 for localhost ping on Windows but not for remote host ping. */ + ok(recv_checksum == checksum || !recv_checksum, "got checksum %#x, expected %#x.\n", recv_checksum, checksum); + + ok(!ip_h->frag_off, "got id %#x.\n", ip_h->frag_off); + addr.s_addr = ip_h->saddr; + ok(ip_h->saddr == sa.sin_addr.s_addr, "got saddr %s.\n", inet_ntoa(addr)); + addr.s_addr = ip_h->daddr; + ok(!!ip_h->daddr, "got daddr %s.\n", inet_ntoa(addr)); + + ok(ip_h->protocol == 1, "got protocol %#x.\n", ip_h->protocol); + + ok(icmp_h->type == ICMP4_ECHO_REPLY, "got type %#x.\n", icmp_h->type); + ok(!icmp_h->code, "got code %#x.\n", icmp_h->code); + todo_wine ok(icmp_h->un.echo.id == 0xbeaf, "got echo id %#x.\n", icmp_h->un.echo.id); + ok(icmp_h->un.echo.sequence == 2, "got echo sequence %#x.\n", icmp_h->un.echo.sequence); + + recv_checksum = icmp_h->checksum; + icmp_h->checksum = 0; + checksum = chksum((BYTE *)icmp_h, sizeof(send_buf)); + ok(recv_checksum == checksum, "got checksum %#x, expected %#x.\n", recv_checksum, checksum); + + ok(reply_data == ping_data, "got reply_data %#x.\n", reply_data); + + closesocket(s); +} + START_TEST( sock ) { int i; @@ -12892,6 +13041,7 @@ START_TEST( sock ) test_empty_recv(); test_timeout(); test_tcp_reset(); + test_icmp();
/* this is an io heavy test, do it at the end so the kernel doesn't start dropping packets */ test_send();