r20059: james was asking about CAP_LARGE_READX and reads close to the 64k

boundary. This test shows that both for Samba4 and w2k3, reads larger
than or equal to 64k don't work (return zero bytes).

Not that I claim this is very useful behaviour :-)
(This used to be commit a10fa12ff5657a96e41b309558786780f294a75f)

diff --git a/source4/torture/raw/read.c b/source4/torture/raw/read.c
index da9580a472bd5db0588ba5a056ca41fb26768156..483f1c6677bae549a3f44b16d80fb8ce415a6f7d 100644 (file)
--- a/source4/torture/raw/read.c
+++ b/source4/torture/raw/read.c
@@ -513,6 +513,26 @@ static BOOL test_readx(struct smbcli_state *cli, TALLOC_CTX *mem_ctx)
        CHECK_VALUE(io.readx.out.nread, io.readx.in.maxcnt);
        CHECK_BUFFER(buf, seed, io.readx.out.nread);
 
+       if (cli->transport->negotiate.capabilities & CAP_LARGE_READX) {
+               printf("Trying large readx\n");
+               io.readx.in.offset = 0;
+               io.readx.in.mincnt = 0;
+               io.readx.in.maxcnt = 0x10000 - 1;
+               status = smb_raw_read(cli->tree, &io);
+               CHECK_STATUS(status, NT_STATUS_OK);
+               CHECK_VALUE(io.readx.out.nread, 0xFFFF);
+
+               io.readx.in.maxcnt = 0x10000;
+               status = smb_raw_read(cli->tree, &io);
+               CHECK_STATUS(status, NT_STATUS_OK);
+               CHECK_VALUE(io.readx.out.nread, 0);
+
+               io.readx.in.maxcnt = 0x10001;
+               status = smb_raw_read(cli->tree, &io);
+               CHECK_STATUS(status, NT_STATUS_OK);
+               CHECK_VALUE(io.readx.out.nread, 0);
+       }
+
        printf("Trying locked region\n");
        cli->session->pid++;
        if (NT_STATUS_IS_ERR(smbcli_lock(cli->tree, fnum, 103, 1, 0, WRITE_LOCK))) {