source: branches/samba-3.5.x/source4/torture/raw/mux.c

/* 
   Unix SMB/CIFS implementation.
   basic raw test suite for multiplexing
   Copyright (C) Andrew Tridgell 2003
   
   This program is free software; you can redistribute it and/or modify
   it under the terms of the GNU General Public License as published by
   the Free Software Foundation; either version 3 of the License, or
   (at your option) any later version.
   
   This program is distributed in the hope that it will be useful,
   but WITHOUT ANY WARRANTY; without even the implied warranty of
   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
   GNU General Public License for more details.
   
   You should have received a copy of the GNU General Public License
   along with this program.  If not, see <http://www.gnu.org/licenses/>.
*/

#include "includes.h"
#include "torture/torture.h"
#include "system/filesys.h"
#include "libcli/raw/libcliraw.h"
#include "libcli/raw/raw_proto.h"
#include "libcli/libcli.h"
#include "torture/util.h"

#define BASEDIR "\\test_mux"

#define CHECK_STATUS(status, correct) do { \
        if (!NT_STATUS_EQUAL(status, correct)) { \
                printf("(%s) Incorrect status %s - should be %s\n", \
                       __location__, nt_errstr(status), nt_errstr(correct)); \
                ret = false; \
                goto done; \
        }} while (0)


/*
  test the delayed reply to a open that leads to a sharing violation
*/
static bool test_mux_open(struct smbcli_state *cli, TALLOC_CTX *mem_ctx)
{
        union smb_open io;
        NTSTATUS status;
        int fnum1, fnum2;
        bool ret = true;
        struct smbcli_request *req1, *req2;
        struct timeval tv;
        double d;

        printf("testing multiplexed open/open/close\n");

        printf("send first open\n");
        io.generic.level = RAW_OPEN_NTCREATEX;
        io.ntcreatex.in.root_fid = 0;
        io.ntcreatex.in.flags = 0;
        io.ntcreatex.in.access_mask = SEC_FILE_READ_DATA;
        io.ntcreatex.in.create_options = 0;
        io.ntcreatex.in.file_attr = FILE_ATTRIBUTE_NORMAL;
        io.ntcreatex.in.share_access = NTCREATEX_SHARE_ACCESS_READ;
        io.ntcreatex.in.alloc_size = 0;
        io.ntcreatex.in.open_disposition = NTCREATEX_DISP_CREATE;
        io.ntcreatex.in.impersonation = NTCREATEX_IMPERSONATION_ANONYMOUS;
        io.ntcreatex.in.security_flags = 0;
        io.ntcreatex.in.fname = BASEDIR "\\open.dat";
        status = smb_raw_open(cli->tree, mem_ctx, &io);
        CHECK_STATUS(status, NT_STATUS_OK);
        fnum1 = io.ntcreatex.out.file.fnum;

        printf("send 2nd open, non-conflicting\n");
        io.ntcreatex.in.open_disposition = NTCREATEX_DISP_OPEN;
        status = smb_raw_open(cli->tree, mem_ctx, &io);
        CHECK_STATUS(status, NT_STATUS_OK);
        fnum2 = io.ntcreatex.out.file.fnum;

        tv = timeval_current();

        printf("send 3rd open, conflicting\n");
        io.ntcreatex.in.share_access = 0;
        status = smb_raw_open(cli->tree, mem_ctx, &io);
        CHECK_STATUS(status, NT_STATUS_SHARING_VIOLATION);

        d = timeval_elapsed(&tv);
        if (d < 0.5 || d > 1.5) {
                printf("bad timeout for conflict - %.2f should be 1.0\n", d);
        } else {
                printf("open delay %.2f\n", d);
        }

        printf("send async open, conflicting\n");
        tv = timeval_current();
        req1 = smb_raw_open_send(cli->tree, &io);

        printf("send 2nd async open, conflicting\n");
        tv = timeval_current();
        req2 = smb_raw_open_send(cli->tree, &io);
        
        printf("close first sync open\n");
        smbcli_close(cli->tree, fnum1);

        printf("cancel 2nd async open (should be ignored)\n");
        smb_raw_ntcancel(req2);

        d = timeval_elapsed(&tv);
        if (d > 0.25) {
                printf("bad timeout after cancel - %.2f should be <0.25\n", d);
                ret = false;
        }

        printf("close the 2nd sync open\n");
        smbcli_close(cli->tree, fnum2);

        printf("see if the 1st async open now succeeded\n");
        status = smb_raw_open_recv(req1, mem_ctx, &io);
        CHECK_STATUS(status, NT_STATUS_OK);

        d = timeval_elapsed(&tv);
        if (d > 0.25) {
                printf("bad timeout for async conflict - %.2f should be <0.25\n", d);
                ret = false;
        } else {
                printf("async open delay %.2f\n", d);
        }

        printf("2nd async open should have timed out\n");
        status = smb_raw_open_recv(req2, mem_ctx, &io);
        CHECK_STATUS(status, NT_STATUS_SHARING_VIOLATION);
        d = timeval_elapsed(&tv);
        if (d < 0.8) {
                printf("bad timeout for async conflict - %.2f should be 1.0\n", d);
        }

        printf("close the 1st async open\n");
        smbcli_close(cli->tree, io.ntcreatex.out.file.fnum);

done:
        return ret;
}


/*
  test a write that hits a byte range lock and send the close after the write
*/
static bool test_mux_write(struct smbcli_state *cli, TALLOC_CTX *mem_ctx)
{
        union smb_write io;
        NTSTATUS status;
        int fnum;
        bool ret = true;
        struct smbcli_request *req;

        printf("testing multiplexed lock/write/close\n");

        fnum = smbcli_open(cli->tree, BASEDIR "\\write.dat", O_RDWR | O_CREAT, DENY_NONE);
        if (fnum == -1) {
                printf("open failed in mux_write - %s\n", smbcli_errstr(cli->tree));
                ret = false;
                goto done;
        }

        cli->session->pid = 1;

        /* lock a range */
        if (NT_STATUS_IS_ERR(smbcli_lock(cli->tree, fnum, 0, 4, 0, WRITE_LOCK))) {
                printf("lock failed in mux_write - %s\n", smbcli_errstr(cli->tree));
                ret = false;
                goto done;
        }

        cli->session->pid = 2;

        /* send an async write */
        io.generic.level = RAW_WRITE_WRITEX;
        io.writex.in.file.fnum = fnum;
        io.writex.in.offset = 0;
        io.writex.in.wmode = 0;
        io.writex.in.remaining = 0;
        io.writex.in.count = 4;
        io.writex.in.data = (const uint8_t *)&fnum;     
        req = smb_raw_write_send(cli->tree, &io);

        /* unlock the range */
        cli->session->pid = 1;
        smbcli_unlock(cli->tree, fnum, 0, 4);

        /* and recv the async write reply */
        status = smb_raw_write_recv(req, &io);
        CHECK_STATUS(status, NT_STATUS_FILE_LOCK_CONFLICT);

        smbcli_close(cli->tree, fnum);

done:
        return ret;
}


/*
  test a lock that conflicts with an existing lock
*/
static bool test_mux_lock(struct smbcli_state *cli, TALLOC_CTX *mem_ctx)
{
        union smb_lock io;
        NTSTATUS status;
        int fnum;
        bool ret = true;
        struct smbcli_request *req;
        struct smb_lock_entry lock[1];
        struct timeval t;

        printf("TESTING MULTIPLEXED LOCK/LOCK/UNLOCK\n");

        fnum = smbcli_open(cli->tree, BASEDIR "\\write.dat", O_RDWR | O_CREAT, DENY_NONE);
        if (fnum == -1) {
                printf("open failed in mux_write - %s\n", smbcli_errstr(cli->tree));
                ret = false;
                goto done;
        }

        printf("establishing a lock\n");
        io.lockx.level = RAW_LOCK_LOCKX;
        io.lockx.in.file.fnum = fnum;
        io.lockx.in.mode = 0;
        io.lockx.in.timeout = 0;
        io.lockx.in.lock_cnt = 1;
        io.lockx.in.ulock_cnt = 0;
        lock[0].pid = 1;
        lock[0].offset = 0;
        lock[0].count = 4;
        io.lockx.in.locks = &lock[0];

        status = smb_raw_lock(cli->tree, &io);
        CHECK_STATUS(status, NT_STATUS_OK);

        printf("the second lock will conflict with the first\n");
        lock[0].pid = 2;
        io.lockx.in.timeout = 1000;
        status = smb_raw_lock(cli->tree, &io);
        CHECK_STATUS(status, NT_STATUS_FILE_LOCK_CONFLICT);

        printf("this will too, but we'll unlock while waiting\n");
        t = timeval_current();
        req = smb_raw_lock_send(cli->tree, &io);

        printf("unlock the first range\n");
        lock[0].pid = 1;
        io.lockx.in.ulock_cnt = 1;
        io.lockx.in.lock_cnt = 0;
        io.lockx.in.timeout = 0;
        status = smb_raw_lock(cli->tree, &io);
        CHECK_STATUS(status, NT_STATUS_OK);

        printf("recv the async reply\n");
        status = smbcli_request_simple_recv(req);
        CHECK_STATUS(status, NT_STATUS_OK);     

        printf("async lock took %.2f msec\n", timeval_elapsed(&t) * 1000);
        if (timeval_elapsed(&t) > 0.1) {
                printf("failed to trigger early lock retry\n");
                return false;           
        }

        printf("reopening with an exit\n");
        smb_raw_exit(cli->session);
        fnum = smbcli_open(cli->tree, BASEDIR "\\write.dat", O_RDWR | O_CREAT, DENY_NONE);

        printf("Now trying with a cancel\n");

        io.lockx.level = RAW_LOCK_LOCKX;
        io.lockx.in.file.fnum = fnum;
        io.lockx.in.mode = 0;
        io.lockx.in.timeout = 0;
        io.lockx.in.lock_cnt = 1;
        io.lockx.in.ulock_cnt = 0;
        lock[0].pid = 1;
        lock[0].offset = 0;
        lock[0].count = 4;
        io.lockx.in.locks = &lock[0];

        status = smb_raw_lock(cli->tree, &io);
        CHECK_STATUS(status, NT_STATUS_OK);

        lock[0].pid = 2;
        io.lockx.in.timeout = 1000;
        status = smb_raw_lock(cli->tree, &io);
        CHECK_STATUS(status, NT_STATUS_FILE_LOCK_CONFLICT);

        req = smb_raw_lock_send(cli->tree, &io);

        /* cancel the blocking lock */
        smb_raw_ntcancel(req);

        printf("sending 2nd cancel\n");
        /* the 2nd cancel is totally harmless, but tests the server trying to 
           cancel an already cancelled request */
        smb_raw_ntcancel(req);

        printf("sent 2nd cancel\n");

        lock[0].pid = 1;
        io.lockx.in.ulock_cnt = 1;
        io.lockx.in.lock_cnt = 0;
        io.lockx.in.timeout = 0;
        status = smb_raw_lock(cli->tree, &io);
        CHECK_STATUS(status, NT_STATUS_OK);

        status = smbcli_request_simple_recv(req);
        CHECK_STATUS(status, NT_STATUS_FILE_LOCK_CONFLICT);     

        printf("cancel a lock using exit to close file\n");
        lock[0].pid = 1;
        io.lockx.in.ulock_cnt = 0;
        io.lockx.in.lock_cnt = 1;
        io.lockx.in.timeout = 1000;

        status = smb_raw_lock(cli->tree, &io);
        CHECK_STATUS(status, NT_STATUS_OK);

        t = timeval_current();
        lock[0].pid = 2;
        req = smb_raw_lock_send(cli->tree, &io);

        smb_raw_exit(cli->session);
        smb_raw_exit(cli->session);
        smb_raw_exit(cli->session);
        smb_raw_exit(cli->session);

        printf("recv the async reply\n");
        status = smbcli_request_simple_recv(req);
        CHECK_STATUS(status, NT_STATUS_RANGE_NOT_LOCKED);
        printf("async lock exit took %.2f msec\n", timeval_elapsed(&t) * 1000);
        if (timeval_elapsed(&t) > 0.1) {
                printf("failed to trigger early lock failure\n");
                return false;           
        }

done:
        return ret;
}



/* 
   basic testing of multiplexing notify
*/
bool torture_raw_mux(struct torture_context *torture, struct smbcli_state *cli)
{
        bool ret = true;
                
        if (!torture_setup_dir(cli, BASEDIR)) {
                return false;
        }

        ret &= test_mux_open(cli, torture);
        ret &= test_mux_write(cli, torture);
        ret &= test_mux_lock(cli, torture);

        smb_raw_exit(cli->session);
        smbcli_deltree(cli->tree, BASEDIR);
        return ret;
}