s3:smbd: Add functions calc_max_read_pdu()/calc_read_size() to work out the length...
[obnox/samba/samba-obnox.git] / source3 / smbd / reply.c
index d9b7500707860e24b70714c45a2fcb6978d9c65b..8b500c5387cce56959bfc12ef93083d795847986 100644 (file)
@@ -41,6 +41,8 @@
 #include "auth.h"
 #include "smbprofile.h"
 #include "../lib/tsocket/tsocket.h"
+#include "lib/tevent_wait.h"
+#include "libcli/smb/smb_signing.h"
 
 /****************************************************************************
  Ensure we check the path in *exactly* the same way as W2K for a findfirst/findnext
@@ -410,13 +412,13 @@ static bool netbios_session_retarget(struct smbd_server_connection *sconn,
        char *retarget;
        char *p;
        int retarget_type = 0x20;
-       int retarget_port = 139;
+       int retarget_port = NBT_SMB_PORT;
        struct sockaddr_storage retarget_addr;
        struct sockaddr_in *in_addr;
        bool ret = false;
        uint8_t outbuf[10];
 
-       if (get_socket_port(sconn->sock) != 139) {
+       if (get_socket_port(sconn->sock) != NBT_SMB_PORT) {
                return false;
        }
 
@@ -588,6 +590,19 @@ void reply_special(struct smbd_server_connection *sconn, char *inbuf, size_t inb
                set_local_machine_name(name1, True);
                set_remote_machine_name(name2, True);
 
+               if (is_ipaddress(sconn->remote_hostname)) {
+                       char *p = discard_const_p(char, sconn->remote_hostname);
+
+                       talloc_free(p);
+
+                       sconn->remote_hostname = talloc_strdup(sconn,
+                                               get_remote_machine_name());
+                       if (sconn->remote_hostname == NULL) {
+                               exit_server_cleanly("could not copy remote name");
+                       }
+                       sconn->conn->remote_hostname = sconn->remote_hostname;
+               }
+
                DEBUG(2,("netbios connect: local=%s remote=%s, name type = %x\n",
                         get_local_machine_name(), get_remote_machine_name(),
                         name_type2));
@@ -599,13 +614,6 @@ void reply_special(struct smbd_server_connection *sconn, char *inbuf, size_t inb
                        break;
                }
 
-               /* only add the client's machine name to the list
-                  of possibly valid usernames if we are operating
-                  in share mode security */
-               if (lp_security() == SEC_SHARE) {
-                       add_session_user(sconn, get_remote_machine_name());
-               }
-
                reload_services(sconn, conn_snum_used, true);
                reopen_logs();
 
@@ -656,9 +664,9 @@ void reply_tcon(struct smb_request *req)
        int pwlen=0;
        NTSTATUS nt_status;
        const char *p;
-       DATA_BLOB password_blob;
        TALLOC_CTX *ctx = talloc_tos();
        struct smbd_server_connection *sconn = req->sconn;
+       NTTIME now = timeval_to_nttime(&req->request_time);
 
        START_PROFILE(SMBtcon);
 
@@ -688,14 +696,10 @@ void reply_tcon(struct smb_request *req)
                service = service_buf;
        }
 
-       password_blob = data_blob(password, pwlen+1);
-
-       conn = make_connection(sconn,service,password_blob,dev,
+       conn = make_connection(sconn, now, service, dev,
                               req->vuid,&nt_status);
        req->conn = conn;
 
-       data_blob_clear_free(&password_blob);
-
        if (!conn) {
                reply_nterror(req, nt_status);
                END_PROFILE(SMBtcon);
@@ -723,7 +727,6 @@ void reply_tcon_and_X(struct smb_request *req)
 {
        connection_struct *conn = req->conn;
        const char *service = NULL;
-       DATA_BLOB password;
        TALLOC_CTX *ctx = talloc_tos();
        /* what the cleint thinks the device is */
        char *client_devicetype = NULL;
@@ -733,7 +736,11 @@ void reply_tcon_and_X(struct smb_request *req)
        int passlen;
        char *path = NULL;
        const char *p, *q;
-       uint16 tcon_flags;
+       uint16_t tcon_flags;
+       struct smbXsrv_session *session = NULL;
+       NTTIME now = timeval_to_nttime(&req->request_time);
+       bool session_key_updated = false;
+       uint16_t optional_support = 0;
        struct smbd_server_connection *sconn = req->sconn;
 
        START_PROFILE(SMBtconX);
@@ -748,10 +755,32 @@ void reply_tcon_and_X(struct smb_request *req)
        tcon_flags = SVAL(req->vwv+2, 0);
 
        /* we might have to close an old one */
-       if ((tcon_flags & 0x1) && conn) {
-               close_cnum(conn,req->vuid);
+       if ((tcon_flags & TCONX_FLAG_DISCONNECT_TID) && conn) {
+               struct smbXsrv_tcon *tcon;
+               NTSTATUS status;
+
+               tcon = conn->tcon;
                req->conn = NULL;
                conn = NULL;
+
+               /*
+                * TODO: cancel all outstanding requests on the tcon
+                */
+               status = smbXsrv_tcon_disconnect(tcon, req->vuid);
+               if (!NT_STATUS_IS_OK(status)) {
+                       DEBUG(0, ("reply_tcon_and_X: "
+                                 "smbXsrv_tcon_disconnect() failed: %s\n",
+                                 nt_errstr(status)));
+                       /*
+                        * If we hit this case, there is something completely
+                        * wrong, so we better disconnect the transport connection.
+                        */
+                       END_PROFILE(SMBtconX);
+                       exit_server(__location__ ": smbXsrv_tcon_disconnect failed");
+                       return;
+               }
+
+               TALLOC_FREE(tcon);
        }
 
        if ((passlen > MAX_PASS_LEN) || (passlen >= req->buflen)) {
@@ -761,27 +790,14 @@ void reply_tcon_and_X(struct smb_request *req)
        }
 
        if (sconn->smb1.negprot.encrypted_passwords) {
-               password = data_blob_talloc(talloc_tos(), req->buf, passlen);
-               if (lp_security() == SEC_SHARE) {
-                       /*
-                        * Security = share always has a pad byte
-                        * after the password.
-                        */
-                       p = (const char *)req->buf + passlen + 1;
-               } else {
-                       p = (const char *)req->buf + passlen;
-               }
+               p = (const char *)req->buf + passlen;
        } else {
-               password = data_blob_talloc(talloc_tos(), req->buf, passlen+1);
-               /* Ensure correct termination */
-               password.data[passlen]=0;
                p = (const char *)req->buf + passlen + 1;
        }
 
        p += srvstr_pull_req_talloc(ctx, req, &path, p, STR_TERMINATE);
 
        if (path == NULL) {
-               data_blob_clear_free(&password);
                reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
                END_PROFILE(SMBtconX);
                return;
@@ -794,7 +810,6 @@ void reply_tcon_and_X(struct smb_request *req)
        if (*path=='\\') {
                q = strchr_m(path+2,'\\');
                if (!q) {
-                       data_blob_clear_free(&password);
                        reply_nterror(req, NT_STATUS_BAD_NETWORK_NAME);
                        END_PROFILE(SMBtconX);
                        return;
@@ -809,7 +824,6 @@ void reply_tcon_and_X(struct smb_request *req)
                                MIN(6, smbreq_bufrem(req, p)), STR_ASCII);
 
        if (client_devicetype == NULL) {
-               data_blob_clear_free(&password);
                reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
                END_PROFILE(SMBtconX);
                return;
@@ -817,13 +831,99 @@ void reply_tcon_and_X(struct smb_request *req)
 
        DEBUG(4,("Client requested device type [%s] for share [%s]\n", client_devicetype, service));
 
-       conn = make_connection(sconn, service, password, client_devicetype,
+       nt_status = smb1srv_session_lookup(req->sconn->conn,
+                                          req->vuid, now, &session);
+       if (NT_STATUS_EQUAL(nt_status, NT_STATUS_USER_SESSION_DELETED)) {
+               reply_force_doserror(req, ERRSRV, ERRbaduid);
+               END_PROFILE(SMBtconX);
+               return;
+       }
+       if (NT_STATUS_EQUAL(nt_status, NT_STATUS_NETWORK_SESSION_EXPIRED)) {
+               reply_nterror(req, nt_status);
+               END_PROFILE(SMBtconX);
+               return;
+       }
+       if (!NT_STATUS_IS_OK(nt_status)) {
+               reply_nterror(req, NT_STATUS_INVALID_HANDLE);
+               END_PROFILE(SMBtconX);
+               return;
+       }
+
+       if (session->global->auth_session_info == NULL) {
+               reply_nterror(req, NT_STATUS_INVALID_HANDLE);
+               END_PROFILE(SMBtconX);
+               return;
+       }
+
+       /*
+        * If there is no application key defined yet
+        * we create one.
+        *
+        * This means we setup the application key on the
+        * first tcon that happens via the given session.
+        *
+        * Once the application key is defined, it does not
+        * change any more.
+        */
+       if (session->global->application_key.length == 0 &&
+           session->global->signing_key.length > 0)
+       {
+               struct smbXsrv_session *x = session;
+               struct auth_session_info *session_info =
+                       session->global->auth_session_info;
+               uint8_t session_key[16];
+
+               ZERO_STRUCT(session_key);
+               memcpy(session_key, x->global->signing_key.data,
+                      MIN(x->global->signing_key.length, sizeof(session_key)));
+
+               /*
+                * The application key is truncated/padded to 16 bytes
+                */
+               x->global->application_key = data_blob_talloc(x->global,
+                                                            session_key,
+                                                            sizeof(session_key));
+               ZERO_STRUCT(session_key);
+               if (x->global->application_key.data == NULL) {
+                       reply_nterror(req, NT_STATUS_NO_MEMORY);
+                       END_PROFILE(SMBtconX);
+                       return;
+               }
+
+               if (tcon_flags & TCONX_FLAG_EXTENDED_SIGNATURES) {
+                       smb_key_derivation(x->global->application_key.data,
+                                          x->global->application_key.length,
+                                          x->global->application_key.data);
+                       optional_support |= SMB_EXTENDED_SIGNATURES;
+               }
+
+               /*
+                * Place the application key into the session_info
+                */
+               data_blob_clear_free(&session_info->session_key);
+               session_info->session_key = data_blob_dup_talloc(session_info,
+                                               x->global->application_key);
+               if (session_info->session_key.data == NULL) {
+                       data_blob_clear_free(&x->global->application_key);
+                       reply_nterror(req, NT_STATUS_NO_MEMORY);
+                       END_PROFILE(SMBtconX);
+                       return;
+               }
+               session_key_updated = true;
+       }
+
+       conn = make_connection(sconn, now, service, client_devicetype,
                               req->vuid, &nt_status);
        req->conn =conn;
 
-       data_blob_clear_free(&password);
-
        if (!conn) {
+               if (session_key_updated) {
+                       struct smbXsrv_session *x = session;
+                       struct auth_session_info *session_info =
+                               session->global->auth_session_info;
+                       data_blob_clear_free(&x->global->application_key);
+                       data_blob_clear_free(&session_info->session_key);
+               }
                reply_nterror(req, nt_status);
                END_PROFILE(SMBtconX);
                return;
@@ -846,7 +946,7 @@ void reply_tcon_and_X(struct smb_request *req)
                }
        } else {
                /* NT sets the fstype of IPC$ to the null string */
-               const char *fstype = IS_IPC(conn) ? "" : lp_fstype(SNUM(conn));
+               const char *fstype = IS_IPC(conn) ? "" : lp_fstype(ctx, SNUM(conn));
 
                if (tcon_flags & TCONX_FLAG_EXTENDED_RESPONSE) {
                        /* Return permissions. */
@@ -879,17 +979,21 @@ void reply_tcon_and_X(struct smb_request *req)
 
                /* what does setting this bit do? It is set by NT4 and
                   may affect the ability to autorun mounted cdroms */
-               SSVAL(req->outbuf, smb_vwv2, SMB_SUPPORT_SEARCH_BITS|
-                     (lp_csc_policy(SNUM(conn)) << 2));
+               optional_support |= SMB_SUPPORT_SEARCH_BITS;
+               optional_support |=
+                       (lp_csc_policy(SNUM(conn)) << SMB_CSC_POLICY_SHIFT);
 
                if (lp_msdfs_root(SNUM(conn)) && lp_host_msdfs()) {
                        DEBUG(2,("Serving %s as a Dfs root\n",
-                                lp_servicename(SNUM(conn)) ));
-                       SSVAL(req->outbuf, smb_vwv2,
-                             SMB_SHARE_IN_DFS | SVAL(req->outbuf, smb_vwv2));
+                                lp_servicename(ctx, SNUM(conn)) ));
+                       optional_support |= SMB_SHARE_IN_DFS;
                }
+
+               SSVAL(req->outbuf, smb_vwv2, optional_support);
        }
 
+       SSVAL(req->outbuf, smb_vwv0, 0xff); /* andx chain ends */
+       SSVAL(req->outbuf, smb_vwv1, 0);    /* no andx offset */
 
        DEBUG(3,("tconX service=%s \n",
                 service));
@@ -901,8 +1005,6 @@ void reply_tcon_and_X(struct smb_request *req)
        END_PROFILE(SMBtconX);
 
        req->tid = conn->cnum;
-       chain_reply(req);
-       return;
 }
 
 /****************************************************************************
@@ -974,17 +1076,16 @@ void reply_ioctl(struct smb_request *req)
                                return;
                        }
                        /* Job number */
-                       if (fsp->print_file) {
-                               SSVAL(p, 0, fsp->print_file->rap_jobid);
-                       } else {
-                               SSVAL(p, 0, 0);
-                       }
+                       SSVAL(p, 0, print_spool_rap_jobid(fsp->print_file));
+
                        srvstr_push((char *)req->outbuf, req->flags2, p+2,
                                    lp_netbios_name(), 15,
                                    STR_TERMINATE|STR_ASCII);
                        if (conn) {
                                srvstr_push((char *)req->outbuf, req->flags2,
-                                           p+18, lp_servicename(SNUM(conn)),
+                                           p+18,
+                                           lp_servicename(talloc_tos(),
+                                                          SNUM(conn)),
                                            13, STR_TERMINATE|STR_ASCII);
                        } else {
                                memset(p+18, 0, 13);
@@ -1111,7 +1212,7 @@ void reply_getatr(struct smb_request *req)
        struct smb_filename *smb_fname = NULL;
        char *fname = NULL;
        int mode=0;
-       SMB_OFF_T size=0;
+       off_t size=0;
        time_t mtime=0;
        const char *p;
        NTSTATUS status;
@@ -1404,7 +1505,7 @@ void reply_search(struct smb_request *req)
        char *directory = NULL;
        struct smb_filename *smb_fname = NULL;
        char *fname = NULL;
-       SMB_OFF_T size;
+       off_t size;
        uint32 mode;
        struct timespec date;
        uint32 dirtype;
@@ -1497,6 +1598,7 @@ void reply_search(struct smb_request *req)
                SCVAL(status,0,(dirtype & 0x1F));
 
                nt_status = dptr_create(conn,
+                                       NULL, /* req */
                                        NULL, /* fsp */
                                        directory,
                                        True,
@@ -1552,7 +1654,7 @@ void reply_search(struct smb_request *req)
        if ((dirtype&0x1F) == FILE_ATTRIBUTE_VOLUME) {
                char buf[DIR_STRUCT_SIZE];
                memcpy(buf,status,21);
-               if (!make_dir_struct(ctx,buf,"???????????",volume_label(SNUM(conn)),
+               if (!make_dir_struct(ctx,buf,"???????????",volume_label(ctx, SNUM(conn)),
                                0,FILE_ATTRIBUTE_VOLUME,0,!allow_long_path_components)) {
                        reply_nterror(req, NT_STATUS_NO_MEMORY);
                        goto out;
@@ -1578,8 +1680,8 @@ void reply_search(struct smb_request *req)
                         /DIR_STRUCT_SIZE));
 
                DEBUG(8,("dirpath=<%s> dontdescend=<%s>\n",
-                       directory,lp_dontdescend(SNUM(conn))));
-               if (in_list(directory, lp_dontdescend(SNUM(conn)),True)) {
+                        directory,lp_dontdescend(ctx, SNUM(conn))));
+               if (in_list(directory, lp_dontdescend(ctx, SNUM(conn)),True)) {
                        check_descend = True;
                }
 
@@ -1745,7 +1847,7 @@ void reply_open(struct smb_request *req)
        struct smb_filename *smb_fname = NULL;
        char *fname = NULL;
        uint32 fattr=0;
-       SMB_OFF_T size = 0;
+       off_t size = 0;
        time_t mtime=0;
        int info;
        files_struct *fsp;
@@ -2018,7 +2120,7 @@ void reply_open_and_X(struct smb_request *req)
                        reply_nterror(req, NT_STATUS_DISK_FULL);
                        goto out;
                }
-               retval = vfs_set_filelen(fsp, (SMB_OFF_T)allocation_size);
+               retval = vfs_set_filelen(fsp, (off_t)allocation_size);
                if (retval < 0) {
                        close_file(req, fsp, ERROR_CLOSE);
                        reply_nterror(req, NT_STATUS_DISK_FULL);
@@ -2064,6 +2166,9 @@ void reply_open_and_X(struct smb_request *req)
                reply_outbuf(req, 15, 0);
        }
 
+       SSVAL(req->outbuf, smb_vwv0, 0xff); /* andx chain ends */
+       SSVAL(req->outbuf, smb_vwv1, 0);    /* no andx offset */
+
        if (core_oplock_request && lp_fake_oplocks(SNUM(conn))) {
                SCVAL(req->outbuf, smb_flg,
                      CVAL(req->outbuf,smb_flg)|CORE_OPLOCK_GRANTED);
@@ -2089,7 +2194,6 @@ void reply_open_and_X(struct smb_request *req)
                SIVAL(req->outbuf, smb_vwv15, SEC_STD_ALL);
        }
 
-       chain_reply(req);
  out:
        TALLOC_FREE(smb_fname);
        END_PROFILE(SMBopenX);
@@ -2103,32 +2207,55 @@ void reply_open_and_X(struct smb_request *req)
 void reply_ulogoffX(struct smb_request *req)
 {
        struct smbd_server_connection *sconn = req->sconn;
-       user_struct *vuser;
+       struct user_struct *vuser;
+       struct smbXsrv_session *session = NULL;
+       NTSTATUS status;
 
        START_PROFILE(SMBulogoffX);
 
        vuser = get_valid_user_struct(sconn, req->vuid);
 
        if(vuser == NULL) {
-               DEBUG(3,("ulogoff, vuser id %d does not map to user.\n",
-                        req->vuid));
+               DEBUG(3,("ulogoff, vuser id %llu does not map to user.\n",
+                        (unsigned long long)req->vuid));
+
+               req->vuid = UID_FIELD_INVALID;
+               reply_force_doserror(req, ERRSRV, ERRbaduid);
+               END_PROFILE(SMBulogoffX);
+               return;
        }
 
-       /* in user level security we are supposed to close any files
-               open by this user */
-       if ((vuser != NULL) && (lp_security() != SEC_SHARE)) {
-               file_close_user(sconn, req->vuid);
+       session = vuser->session;
+       vuser = NULL;
+
+       /*
+        * TODO: cancel all outstanding requests on the session
+        */
+       status = smbXsrv_session_logoff(session);
+       if (!NT_STATUS_IS_OK(status)) {
+               DEBUG(0, ("reply_ulogoff: "
+                         "smbXsrv_session_logoff() failed: %s\n",
+                         nt_errstr(status)));
+               /*
+                * If we hit this case, there is something completely
+                * wrong, so we better disconnect the transport connection.
+                */
+               END_PROFILE(SMBulogoffX);
+               exit_server(__location__ ": smbXsrv_session_logoff failed");
+               return;
        }
 
-       invalidate_vuid(sconn, req->vuid);
+       TALLOC_FREE(session);
 
        reply_outbuf(req, 2, 0);
+       SSVAL(req->outbuf, smb_vwv0, 0xff); /* andx chain ends */
+       SSVAL(req->outbuf, smb_vwv1, 0);    /* no andx offset */
 
-       DEBUG( 3, ( "ulogoffX vuid=%d\n", req->vuid ) );
+       DEBUG(3, ("ulogoffX vuid=%llu\n",
+                 (unsigned long long)req->vuid));
 
        END_PROFILE(SMBulogoffX);
        req->vuid = UID_FIELD_INVALID;
-       chain_reply(req);
 }
 
 /****************************************************************************
@@ -2572,7 +2699,9 @@ static NTSTATUS do_unlink(connection_struct *conn,
        }
 
        /* The set is across all open files on this dev/inode pair. */
-       if (!set_delete_on_close(fsp, True, conn->session_info->unix_token)) {
+       if (!set_delete_on_close(fsp, True,
+                               conn->session_info->security_token,
+                               conn->session_info->unix_token)) {
                close_file(req, fsp, NORMAL_CLOSE);
                return NT_STATUS_ACCESS_DENIED;
        }
@@ -2864,7 +2993,7 @@ static void fail_readraw(void)
  Fake (read/write) sendfile. Returns -1 on read or write fail.
 ****************************************************************************/
 
-ssize_t fake_sendfile(files_struct *fsp, SMB_OFF_T startpos, size_t nread)
+ssize_t fake_sendfile(files_struct *fsp, off_t startpos, size_t nread)
 {
        size_t bufsize;
        size_t tosend = nread;
@@ -3027,7 +3156,7 @@ static void reply_readbraw_error(struct smbd_server_connection *sconn)
 static void send_file_readbraw(connection_struct *conn,
                               struct smb_request *req,
                               files_struct *fsp,
-                              SMB_OFF_T startpos,
+                              off_t startpos,
                               size_t nread,
                               ssize_t mincount)
 {
@@ -3158,15 +3287,14 @@ void reply_readbraw(struct smb_request *req)
        struct smbd_server_connection *sconn = req->sconn;
        ssize_t maxcount,mincount;
        size_t nread = 0;
-       SMB_OFF_T startpos;
+       off_t startpos;
        files_struct *fsp;
        struct lock_struct lock;
-       SMB_OFF_T size = 0;
+       off_t size = 0;
 
        START_PROFILE(SMBreadbraw);
 
-       if (srv_is_signing_active(sconn) ||
-           is_encrypted_packet(sconn, req->inbuf)) {
+       if (srv_is_signing_active(sconn) || req->encrypted) {
                exit_server_cleanly("reply_readbraw: SMB signing/sealing is active - "
                        "raw reads/writes are disallowed.");
        }
@@ -3231,27 +3359,8 @@ void reply_readbraw(struct smb_request *req)
                /*
                 * This is a large offset (64 bit) read.
                 */
-#ifdef LARGE_SMB_OFF_T
-
-               startpos |= (((SMB_OFF_T)IVAL(req->vwv+8, 0)) << 32);
-
-#else /* !LARGE_SMB_OFF_T */
-
-               /*
-                * Ensure we haven't been sent a >32 bit offset.
-                */
-
-               if(IVAL(req->vwv+8, 0) != 0) {
-                       DEBUG(0,("reply_readbraw: large offset "
-                               "(%x << 32) used and we don't support "
-                               "64 bit offsets.\n",
-                       (unsigned int)IVAL(req->vwv+8, 0) ));
-                       reply_readbraw_error(sconn);
-                       END_PROFILE(SMBreadbraw);
-                       return;
-               }
 
-#endif /* LARGE_SMB_OFF_T */
+               startpos |= (((off_t)IVAL(req->vwv+8, 0)) << 32);
 
                if(startpos < 0) {
                        DEBUG(0,("reply_readbraw: negative 64 bit "
@@ -3294,9 +3403,9 @@ void reply_readbraw(struct smb_request *req)
                nread = 0;
 #endif
 
-       DEBUG( 3, ( "reply_readbraw: fnum=%d start=%.0f max=%lu "
+       DEBUG( 3, ( "reply_readbraw: %s start=%.0f max=%lu "
                "min=%lu nread=%lu\n",
-               fsp->fnum, (double)startpos,
+               fsp_fnum_dbg(fsp), (double)startpos,
                (unsigned long)maxcount,
                (unsigned long)mincount,
                (unsigned long)nread ) );
@@ -3323,7 +3432,7 @@ void reply_lockread(struct smb_request *req)
        connection_struct *conn = req->conn;
        ssize_t nread = -1;
        char *data;
-       SMB_OFF_T startpos;
+       off_t startpos;
        size_t numtoread;
        NTSTATUS status;
        files_struct *fsp;
@@ -3415,8 +3524,8 @@ Returning short read of maximum allowed for compatibility with Windows 2000.\n",
        SCVAL(p,0,0); /* pad byte. */
        SSVAL(p,1,nread);
 
-       DEBUG(3,("lockread fnum=%d num=%d nread=%d\n",
-                fsp->fnum, (int)numtoread, (int)nread));
+       DEBUG(3,("lockread %s num=%d nread=%d\n",
+                fsp_fnum_dbg(fsp), (int)numtoread, (int)nread));
 
        END_PROFILE(SMBlockread);
        return;
@@ -3435,7 +3544,7 @@ void reply_read(struct smb_request *req)
        size_t numtoread;
        ssize_t nread = 0;
        char *data;
-       SMB_OFF_T startpos;
+       off_t startpos;
        int outsize = 0;
        files_struct *fsp;
        struct lock_struct lock;
@@ -3507,8 +3616,8 @@ Returning short read of maximum allowed for compatibility with Windows 2000.\n",
        SCVAL(smb_buf(req->outbuf),0,1);
        SSVAL(smb_buf(req->outbuf),1,nread);
 
-       DEBUG( 3, ( "read fnum=%d num=%d nread=%d\n",
-               fsp->fnum, (int)numtoread, (int)nread ) );
+       DEBUG(3, ("read %s num=%d nread=%d\n",
+                 fsp_fnum_dbg(fsp), (int)numtoread, (int)nread));
 
 strict_unlock:
        SMB_VFS_STRICT_UNLOCK(conn, fsp, &lock);
@@ -3525,10 +3634,8 @@ static int setup_readX_header(struct smb_request *req, char *outbuf,
                              size_t smb_maxcnt)
 {
        int outsize;
-       char *data;
 
        outsize = srv_set_message(outbuf,12,smb_maxcnt,False);
-       data = smb_buf(outbuf);
 
        memset(outbuf+smb_vwv0,'\0',24); /* valgrind init. */
 
@@ -3536,7 +3643,7 @@ static int setup_readX_header(struct smb_request *req, char *outbuf,
        SSVAL(outbuf,smb_vwv2,0xFFFF); /* Remaining - must be -1. */
        SSVAL(outbuf,smb_vwv5,smb_maxcnt);
        SSVAL(outbuf,smb_vwv6,
-             req_wct_ofs(req)
+             (smb_wct - 4)     /* offset from smb header to wct */
              + 1               /* the wct field */
              + 12 * sizeof(uint16_t) /* vwv */
              + 2);             /* the buflen field */
@@ -3552,7 +3659,7 @@ static int setup_readX_header(struct smb_request *req, char *outbuf,
 ****************************************************************************/
 
 static void send_file_readX(connection_struct *conn, struct smb_request *req,
-                           files_struct *fsp, SMB_OFF_T startpos,
+                           files_struct *fsp, off_t startpos,
                            size_t smb_maxcnt)
 {
        ssize_t nread = -1;
@@ -3590,7 +3697,7 @@ static void send_file_readX(connection_struct *conn, struct smb_request *req,
         */
 
        if (!req_is_in_chain(req) &&
-           !is_encrypted_packet(req->sconn, req->inbuf) &&
+           !req->encrypted &&
            (fsp->base_fsp == NULL) &&
            (fsp->wcp == NULL) &&
            lp_use_sendfile(SNUM(conn), req->sconn->smb1.signing_state) ) {
@@ -3637,8 +3744,8 @@ static void send_file_readX(connection_struct *conn, struct smb_request *req,
                                                 strerror(errno)));
                                        exit_server_cleanly("send_file_readX: fake_sendfile failed");
                                }
-                               DEBUG( 3, ( "send_file_readX: fake_sendfile fnum=%d max=%d nread=%d\n",
-                                       fsp->fnum, (int)smb_maxcnt, (int)nread ) );
+                               DEBUG(3, ("send_file_readX: fake_sendfile %s max=%d nread=%d\n",
+                                         fsp_fnum_dbg(fsp), (int)smb_maxcnt, (int)nread));
                                /* No outbuf here means successful sendfile. */
                                goto strict_unlock;
                        }
@@ -3661,8 +3768,8 @@ static void send_file_readX(connection_struct *conn, struct smb_request *req,
                        goto normal_read;
                }
 
-               DEBUG( 3, ( "send_file_readX: sendfile fnum=%d max=%d nread=%d\n",
-                       fsp->fnum, (int)smb_maxcnt, (int)nread ) );
+               DEBUG(3, ("send_file_readX: sendfile %s max=%d nread=%d\n",
+                         fsp_fnum_dbg(fsp), (int)smb_maxcnt, (int)nread));
 
                /* Deal with possible short send. */
                if (nread != smb_maxcnt + sizeof(headerbuf)) {
@@ -3715,6 +3822,8 @@ normal_read:
 nosendfile_read:
 
        reply_outbuf(req, 12, smb_maxcnt);
+       SSVAL(req->outbuf, smb_vwv0, 0xff); /* andx chain ends */
+       SSVAL(req->outbuf, smb_vwv1, 0);    /* no andx offset */
 
        nread = read_file(fsp, smb_buf(req->outbuf), startpos, smb_maxcnt);
        saved_errno = errno;
@@ -3728,10 +3837,8 @@ nosendfile_read:
 
        setup_readX_header(req, (char *)req->outbuf, nread);
 
-       DEBUG( 3, ( "send_file_readX fnum=%d max=%d nread=%d\n",
-                   fsp->fnum, (int)smb_maxcnt, (int)nread ) );
-
-       chain_reply(req);
+       DEBUG(3, ("send_file_readX %s max=%d nread=%d\n",
+                 fsp_fnum_dbg(fsp), (int)smb_maxcnt, (int)nread));
        return;
 
  strict_unlock:
@@ -3740,17 +3847,95 @@ nosendfile_read:
        return;
 }
 
+/****************************************************************************
+ Work out how much space we have for a read return.
+****************************************************************************/
+
+static size_t calc_max_read_pdu(const struct smb_request *req)
+{
+       if (req->sconn->conn->protocol < PROTOCOL_NT1) {
+               return req->sconn->smb1.sessions.max_send;
+       }
+
+       if (!lp_large_readwrite()) {
+               return req->sconn->smb1.sessions.max_send;
+       }
+
+       if (req_is_in_chain(req)) {
+               return req->sconn->smb1.sessions.max_send;
+       }
+
+       if (req->encrypted) {
+               /*
+                * Don't take encrypted traffic up to the
+                * limit. There are padding considerations
+                * that make that tricky.
+                */
+               return req->sconn->smb1.sessions.max_send;
+       }
+
+       if (srv_is_signing_active(req->sconn)) {
+               return 0x1FFFF;
+       }
+
+       if (!lp_unix_extensions()) {
+               return 0x1FFFF;
+       }
+
+       /*
+        * We can do ultra-large POSIX reads.
+        */
+       return 0xFFFFFF;
+}
+
+/****************************************************************************
+ Calculate how big a read can be. Copes with all clients. It's always
+ safe to return a short read - Windows does this.
+****************************************************************************/
+
+static size_t calc_read_size(const struct smb_request *req,
+                            size_t upper_size,
+                            size_t lower_size)
+{
+       size_t max_pdu = calc_max_read_pdu(req);
+       size_t total_size = 0;
+       size_t hdr_len = MIN_SMB_SIZE + VWV(12);
+       size_t max_len = max_pdu - hdr_len;
+
+       /*
+        * Windows explicitly ignores upper size of 0xFFFF.
+        * See [MS-SMB].pdf <26> Section 2.2.4.2.1:
+        * We must do the same as these will never fit even in
+        * an extended size NetBIOS packet.
+        */
+       if (upper_size == 0xFFFF) {
+               upper_size = 0;
+       }
+
+       if (req->sconn->conn->protocol < PROTOCOL_NT1) {
+               upper_size = 0;
+       }
+
+       total_size = ((upper_size<<16) | lower_size);
+
+       /*
+        * LARGE_READX test shows it's always safe to return
+        * a short read. Windows does so.
+        */
+       return MIN(total_size, max_len);
+}
+
 /****************************************************************************
  Reply to a read and X.
 ****************************************************************************/
 
 void reply_read_and_X(struct smb_request *req)
 {
-       struct smbd_server_connection *sconn = req->sconn;
        connection_struct *conn = req->conn;
        files_struct *fsp;
-       SMB_OFF_T startpos;
+       off_t startpos;
        size_t smb_maxcnt;
+       size_t upper_size;
        bool big_readX = False;
 #if 0
        size_t smb_mincnt = SVAL(req->vwv+6, 0);
@@ -3785,65 +3970,22 @@ void reply_read_and_X(struct smb_request *req)
                return;
        }
 
-       if ((sconn->smb1.unix_info.client_cap_low & CIFS_UNIX_LARGE_READ_CAP) ||
-           (get_remote_arch() == RA_SAMBA)) {
+       upper_size = SVAL(req->vwv+7, 0);
+       smb_maxcnt = calc_read_size(req, upper_size, smb_maxcnt);
+       if (smb_maxcnt > (0x1FFFF - (MIN_SMB_SIZE + VWV(12)))) {
                /*
-                * This is Samba only behavior (up to Samba 3.6)!
-                *
-                * Windows 2008 R2 ignores the upper_size,
-                * so we do unless unix extentions are active
-                * or "smbclient" is talking to us.
+                * This is a heuristic to avoid keeping large
+                * outgoing buffers around over long-lived aio
+                * requests.
                 */
-               size_t upper_size = SVAL(req->vwv+7, 0);
-               smb_maxcnt |= (upper_size<<16);
-               if (upper_size > 1) {
-                       /* Can't do this on a chained packet. */
-                       if ((CVAL(req->vwv+0, 0) != 0xFF)) {
-                               reply_nterror(req, NT_STATUS_NOT_SUPPORTED);
-                               END_PROFILE(SMBreadX);
-                               return;
-                       }
-                       /* We currently don't do this on signed or sealed data. */
-                       if (srv_is_signing_active(req->sconn) ||
-                           is_encrypted_packet(req->sconn, req->inbuf)) {
-                               reply_nterror(req, NT_STATUS_NOT_SUPPORTED);
-                               END_PROFILE(SMBreadX);
-                               return;
-                       }
-                       /* Is there room in the reply for this data ? */
-                       if (smb_maxcnt > (0xFFFFFF - (smb_size -4 + 12*2)))  {
-                               reply_nterror(req,
-                                             NT_STATUS_INVALID_PARAMETER);
-                               END_PROFILE(SMBreadX);
-                               return;
-                       }
-                       big_readX = True;
-               }
+               big_readX = True;
        }
 
        if (req->wct == 12) {
-#ifdef LARGE_SMB_OFF_T
                /*
                 * This is a large offset (64 bit) read.
                 */
-               startpos |= (((SMB_OFF_T)IVAL(req->vwv+10, 0)) << 32);
-
-#else /* !LARGE_SMB_OFF_T */
-
-               /*
-                * Ensure we haven't been sent a >32 bit offset.
-                */
-
-               if(IVAL(req->vwv+10, 0) != 0) {
-                       DEBUG(0,("reply_read_and_X - large offset (%x << 32) "
-                                "used and we don't support 64 bit offsets.\n",
-                                (unsigned int)IVAL(req->vwv+10, 0) ));
-                       END_PROFILE(SMBreadX);
-                       reply_nterror(req, NT_STATUS_ACCESS_DENIED);
-                       return;
-               }
-
-#endif /* LARGE_SMB_OFF_T */
+               startpos |= (((off_t)IVAL(req->vwv+10, 0)) << 32);
 
        }
 
@@ -3938,7 +4080,7 @@ void reply_writebraw(struct smb_request *req)
        ssize_t total_written=0;
        size_t numtowrite=0;
        size_t tcount;
-       SMB_OFF_T startpos;
+       off_t startpos;
        const char *data=NULL;
        bool write_through;
        files_struct *fsp;
@@ -4030,9 +4172,9 @@ void reply_writebraw(struct smb_request *req)
                nwritten = write_file(req,fsp,data,startpos,numtowrite);
        }
 
-       DEBUG(3,("reply_writebraw: initial write fnum=%d start=%.0f num=%d "
+       DEBUG(3, ("reply_writebraw: initial write %s start=%.0f num=%d "
                        "wrote=%d sync=%d\n",
-               fsp->fnum, (double)startpos, (int)numtowrite,
+               fsp_fnum_dbg(fsp), (double)startpos, (int)numtowrite,
                (int)nwritten, (int)write_through));
 
        if (nwritten < (ssize_t)numtowrite)  {
@@ -4137,9 +4279,9 @@ void reply_writebraw(struct smb_request *req)
                goto strict_unlock;
        }
 
-       DEBUG(3,("reply_writebraw: secondart write fnum=%d start=%.0f num=%d "
+       DEBUG(3,("reply_writebraw: secondart write %s start=%.0f num=%d "
                "wrote=%d\n",
-               fsp->fnum, (double)startpos, (int)numtowrite,
+               fsp_fnum_dbg(fsp), (double)startpos, (int)numtowrite,
                (int)total_written));
 
        if (!fsp->print_file) {
@@ -4188,7 +4330,7 @@ void reply_writeunlock(struct smb_request *req)
        connection_struct *conn = req->conn;
        ssize_t nwritten = -1;
        size_t numtowrite;
-       SMB_OFF_T startpos;
+       off_t startpos;
        const char *data;
        NTSTATUS status = NT_STATUS_OK;
        files_struct *fsp;
@@ -4278,8 +4420,8 @@ void reply_writeunlock(struct smb_request *req)
 
        SSVAL(req->outbuf,smb_vwv0,nwritten);
 
-       DEBUG(3,("writeunlock fnum=%d num=%d wrote=%d\n",
-                fsp->fnum, (int)numtowrite, (int)nwritten));
+       DEBUG(3, ("writeunlock %s num=%d wrote=%d\n",
+                 fsp_fnum_dbg(fsp), (int)numtowrite, (int)nwritten));
 
 strict_unlock:
        if (numtowrite && !fsp->print_file) {
@@ -4302,7 +4444,7 @@ void reply_write(struct smb_request *req)
        connection_struct *conn = req->conn;
        size_t numtowrite;
        ssize_t nwritten = -1;
-       SMB_OFF_T startpos;
+       off_t startpos;
        const char *data;
        files_struct *fsp;
        struct lock_struct lock;
@@ -4363,12 +4505,12 @@ void reply_write(struct smb_request *req)
                /*
                 * This is actually an allocate call, and set EOF. JRA.
                 */
-               nwritten = vfs_allocate_file_space(fsp, (SMB_OFF_T)startpos);
+               nwritten = vfs_allocate_file_space(fsp, (off_t)startpos);
                if (nwritten < 0) {
                        reply_nterror(req, NT_STATUS_DISK_FULL);
                        goto strict_unlock;
                }
-               nwritten = vfs_set_filelen(fsp, (SMB_OFF_T)startpos);
+               nwritten = vfs_set_filelen(fsp, (off_t)startpos);
                if (nwritten < 0) {
                        reply_nterror(req, NT_STATUS_DISK_FULL);
                        goto strict_unlock;
@@ -4405,7 +4547,7 @@ void reply_write(struct smb_request *req)
                SSVAL(req->outbuf,smb_err,ERRdiskfull);
        }
 
-       DEBUG(3,("write fnum=%d num=%d wrote=%d\n", fsp->fnum, (int)numtowrite, (int)nwritten));
+       DEBUG(3, ("write %s num=%d wrote=%d\n", fsp_fnum_dbg(fsp), (int)numtowrite, (int)nwritten));
 
 strict_unlock:
        if (!fsp->print_file) {
@@ -4431,6 +4573,9 @@ bool is_valid_writeX_buffer(struct smbd_server_connection *sconn,
        connection_struct *conn = NULL;
        unsigned int doff = 0;
        size_t len = smb_len_large(inbuf);
+       struct smbXsrv_tcon *tcon;
+       NTSTATUS status;
+       NTTIME now = 0;
 
        if (is_encrypted_packet(sconn, inbuf)) {
                /* Can't do this on encrypted
@@ -4449,11 +4594,14 @@ bool is_valid_writeX_buffer(struct smbd_server_connection *sconn,
                return false;
        }
 
-       conn = conn_find(sconn, SVAL(inbuf, smb_tid));
-       if (conn == NULL) {
+       status = smb1srv_tcon_lookup(sconn->conn, SVAL(inbuf, smb_tid),
+                                    now, &tcon);
+       if (!NT_STATUS_IS_OK(status)) {
                DEBUG(10,("is_valid_writeX_buffer: bad tid\n"));
                return false;
        }
+       conn = tcon->compat;
+
        if (IS_IPC(conn)) {
                DEBUG(10,("is_valid_writeX_buffer: IPC$ tid\n"));
                return false;
@@ -4511,7 +4659,7 @@ void reply_write_and_X(struct smb_request *req)
        connection_struct *conn = req->conn;
        files_struct *fsp;
        struct lock_struct lock;
-       SMB_OFF_T startpos;
+       off_t startpos;
        size_t numtowrite;
        bool write_through;
        ssize_t nwritten;
@@ -4525,8 +4673,7 @@ void reply_write_and_X(struct smb_request *req)
 
        if ((req->wct != 12) && (req->wct != 14)) {
                reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
-               END_PROFILE(SMBwriteX);
-               return;
+               goto out;
        }
 
        numtowrite = SVAL(req->vwv+10, 0);
@@ -4543,20 +4690,17 @@ void reply_write_and_X(struct smb_request *req)
                /* Can't do a recvfile write on IPC$ */
                if (IS_IPC(conn)) {
                        reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
-                       END_PROFILE(SMBwriteX);
-                       return;
+                       goto out;
                }
                if (numtowrite != req->unread_bytes) {
                        reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
-                       END_PROFILE(SMBwriteX);
-                       return;
+                       goto out;
                }
        } else {
                if (smb_doff > smblen || smb_doff + numtowrite < numtowrite ||
                                smb_doff + numtowrite > smblen) {
                        reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
-                       END_PROFILE(SMBwriteX);
-                       return;
+                       goto out;
                }
        }
 
@@ -4564,12 +4708,10 @@ void reply_write_and_X(struct smb_request *req)
        if (IS_IPC(conn)) {
                if (req->unread_bytes) {
                        reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
-                       END_PROFILE(SMBwriteX);
-                       return;
+                       goto out;
                }
                reply_pipe_write_and_X(req);
-               END_PROFILE(SMBwriteX);
-               return;
+               goto out;
        }
 
        fsp = file_fsp(req, SVAL(req->vwv+2, 0));
@@ -4577,41 +4719,22 @@ void reply_write_and_X(struct smb_request *req)
        write_through = BITSETW(req->vwv+7,0);
 
        if (!check_fsp(conn, req, fsp)) {
-               END_PROFILE(SMBwriteX);
-               return;
+               goto out;
        }
 
        if (!CHECK_WRITE(fsp)) {
                reply_nterror(req, NT_STATUS_ACCESS_DENIED);
-               END_PROFILE(SMBwriteX);
-               return;
+               goto out;
        }
 
        data = smb_base(req->inbuf) + smb_doff;
 
        if(req->wct == 14) {
-#ifdef LARGE_SMB_OFF_T
                /*
                 * This is a large offset (64 bit) write.
                 */
-               startpos |= (((SMB_OFF_T)IVAL(req->vwv+12, 0)) << 32);
+               startpos |= (((off_t)IVAL(req->vwv+12, 0)) << 32);
 
-#else /* !LARGE_SMB_OFF_T */
-
-               /*
-                * Ensure we haven't been sent a >32 bit offset.
-                */
-
-               if(IVAL(req->vwv+12, 0) != 0) {
-                       DEBUG(0,("reply_write_and_X - large offset (%x << 32) "
-                                "used and we don't support 64 bit offsets.\n",
-                                (unsigned int)IVAL(req->vwv+12, 0) ));
-                       reply_nterror(req, NT_STATUS_ACCESS_DENIED);
-                       END_PROFILE(SMBwriteX);
-                       return;
-               }
-
-#endif /* LARGE_SMB_OFF_T */
        }
 
        /* X/Open SMB protocol says that, unlike SMBwrite
@@ -4668,16 +4791,13 @@ void reply_write_and_X(struct smb_request *req)
        }
 
        reply_outbuf(req, 6, 0);
+       SSVAL(req->outbuf, smb_vwv0, 0xff); /* andx chain ends */
+       SSVAL(req->outbuf, smb_vwv1, 0);    /* no andx offset */
        SSVAL(req->outbuf,smb_vwv2,nwritten);
        SSVAL(req->outbuf,smb_vwv4,nwritten>>16);
 
-       if (nwritten < (ssize_t)numtowrite) {
-               SCVAL(req->outbuf,smb_rcls,ERRHRD);
-               SSVAL(req->outbuf,smb_err,ERRdiskfull);
-       }
-
-       DEBUG(3,("writeX fnum=%d num=%d wrote=%d\n",
-               fsp->fnum, (int)numtowrite, (int)nwritten));
+       DEBUG(3,("writeX %s num=%d wrote=%d\n",
+               fsp_fnum_dbg(fsp), (int)numtowrite, (int)nwritten));
 
        status = sync_file(conn, fsp, write_through);
        if (!NT_STATUS_IS_OK(status)) {
@@ -4688,10 +4808,18 @@ void reply_write_and_X(struct smb_request *req)
        }
 
        END_PROFILE(SMBwriteX);
-       chain_reply(req);
        return;
 
 out:
+       if (req->unread_bytes) {
+               /* writeX failed. drain socket. */
+               if (drain_socket(req->sconn->sock, req->unread_bytes) !=
+                               req->unread_bytes) {
+                       smb_panic("failed to drain pending bytes");
+               }
+               req->unread_bytes = 0;
+       }
+
        END_PROFILE(SMBwriteX);
        return;
 }
@@ -4703,8 +4831,8 @@ out:
 void reply_lseek(struct smb_request *req)
 {
        connection_struct *conn = req->conn;
-       SMB_OFF_T startpos;
-       SMB_OFF_T res= -1;
+       off_t startpos;
+       off_t res= -1;
        int mode,umode;
        files_struct *fsp;
 
@@ -4726,7 +4854,7 @@ void reply_lseek(struct smb_request *req)
 
        mode = SVAL(req->vwv+1, 0) & 3;
        /* NB. This doesn't use IVAL_TO_SMB_OFF_T as startpos can be signed in this case. */
-       startpos = (SMB_OFF_T)IVALS(req->vwv+2, 0);
+       startpos = (off_t)IVALS(req->vwv+2, 0);
 
        switch (mode) {
                case 0:
@@ -4749,7 +4877,7 @@ void reply_lseek(struct smb_request *req)
        if (umode == SEEK_END) {
                if((res = SMB_VFS_LSEEK(fsp,startpos,umode)) == -1) {
                        if(errno == EINVAL) {
-                               SMB_OFF_T current_pos = startpos;
+                               off_t current_pos = startpos;
 
                                if(fsp_stat(fsp) == -1) {
                                        reply_nterror(req,
@@ -4776,8 +4904,8 @@ void reply_lseek(struct smb_request *req)
        reply_outbuf(req, 2, 0);
        SIVAL(req->outbuf,smb_vwv0,res);
 
-       DEBUG(3,("lseek fnum=%d ofs=%.0f newpos = %.0f mode=%d\n",
-               fsp->fnum, (double)startpos, (double)res, mode));
+       DEBUG(3,("lseek %s ofs=%.0f newpos = %.0f mode=%d\n",
+               fsp_fnum_dbg(fsp), (double)startpos, (double)res, mode));
 
        END_PROFILE(SMBlseek);
        return;
@@ -4846,9 +4974,12 @@ void reply_exit(struct smb_request *req)
        return;
 }
 
-/****************************************************************************
- Reply to a close - has to deal with closing a directory opened by NT SMB's.
-****************************************************************************/
+struct reply_close_state {
+       files_struct *fsp;
+       struct smb_request *smbreq;
+};
+
+static void do_smb1_close(struct tevent_req *req);
 
 void reply_close(struct smb_request *req)
 {
@@ -4875,21 +5006,13 @@ void reply_close(struct smb_request *req)
                return;
        }
 
-       if(fsp->is_directory) {
-               /*
-                * Special case - close NT SMB directory handle.
-                */
-               DEBUG(3,("close directory fnum=%d\n", fsp->fnum));
-               status = close_file(req, fsp, NORMAL_CLOSE);
-       } else {
-               time_t t;
-               /*
-                * Close ordinary file.
-                */
+       DEBUG(3, ("Close %s fd=%d %s (numopen=%d)\n",
+                 fsp->is_directory ? "directory" : "file",
+                 fsp->fh->fd, fsp_fnum_dbg(fsp),
+                 conn->num_files_open));
 
-               DEBUG(3,("close fd=%d fnum=%d (numopen=%d)\n",
-                        fsp->fh->fd, fsp->fnum,
-                        conn->num_files_open));
+       if (!fsp->is_directory) {
+               time_t t;
 
                /*
                 * Take care of any time sent in the close.
@@ -4897,16 +5020,49 @@ void reply_close(struct smb_request *req)
 
                t = srv_make_unix_date3(req->vwv+1);
                set_close_write_time(fsp, convert_time_t_to_timespec(t));
+       }
+
+       if (fsp->num_aio_requests != 0) {
+
+               struct reply_close_state *state;
+
+               DEBUG(10, ("closing with aio %u requests pending\n",
+                          fsp->num_aio_requests));
 
                /*
-                * close_file() returns the unix errno if an error
-                * was detected on close - normally this is due to
-                * a disk full error. If not then it was probably an I/O error.
+                * We depend on the aio_extra destructor to take care of this
+                * close request once fsp->num_aio_request drops to 0.
                 */
 
-               status = close_file(req, fsp, NORMAL_CLOSE);
-       }  
+               fsp->deferred_close = tevent_wait_send(
+                       fsp, fsp->conn->sconn->ev_ctx);
+               if (fsp->deferred_close == NULL) {
+                       status = NT_STATUS_NO_MEMORY;
+                       goto done;
+               }
+
+               state = talloc(fsp, struct reply_close_state);
+               if (state == NULL) {
+                       TALLOC_FREE(fsp->deferred_close);
+                       status = NT_STATUS_NO_MEMORY;
+                       goto done;
+               }
+               state->fsp = fsp;
+               state->smbreq = talloc_move(fsp, &req);
+               tevent_req_set_callback(fsp->deferred_close, do_smb1_close,
+                                       state);
+               END_PROFILE(SMBclose);
+               return;
+       }
 
+       /*
+        * close_file() returns the unix errno if an error was detected on
+        * close - normally this is due to a disk full error. If not then it
+        * was probably an I/O error.
+        */
+
+       status = close_file(req, fsp, NORMAL_CLOSE);
+done:
        if (!NT_STATUS_IS_OK(status)) {
                reply_nterror(req, status);
                END_PROFILE(SMBclose);
@@ -4918,6 +5074,49 @@ void reply_close(struct smb_request *req)
        return;
 }
 
+static void do_smb1_close(struct tevent_req *req)
+{
+       struct reply_close_state *state = tevent_req_callback_data(
+               req, struct reply_close_state);
+       struct smb_request *smbreq;
+       NTSTATUS status;
+       int ret;
+
+       ret = tevent_wait_recv(req);
+       TALLOC_FREE(req);
+       if (ret != 0) {
+               DEBUG(10, ("tevent_wait_recv returned %s\n",
+                          strerror(ret)));
+               /*
+                * Continue anyway, this should never happen
+                */
+       }
+
+       /*
+        * fsp->smb2_close_request right now is a talloc grandchild of
+        * fsp. When we close_file(fsp), it would go with it. No chance to
+        * reply...
+        */
+       smbreq = talloc_move(talloc_tos(), &state->smbreq);
+
+       status = close_file(smbreq, state->fsp, NORMAL_CLOSE);
+       if (NT_STATUS_IS_OK(status)) {
+               reply_outbuf(smbreq, 0, 0);
+       } else {
+               reply_nterror(smbreq, status);
+       }
+       if (!srv_send_smb(smbreq->sconn,
+                       (char *)smbreq->outbuf,
+                       true,
+                       smbreq->seqnum+1,
+                       IS_CONN_ENCRYPTED(smbreq->conn)||smbreq->encrypted,
+                       NULL)) {
+               exit_server_cleanly("handle_aio_read_complete: srv_send_smb "
+                                   "failed.");
+       }
+       TALLOC_FREE(smbreq);
+}
+
 /****************************************************************************
  Reply to a writeclose (Core+ protocol).
 ****************************************************************************/
@@ -4928,7 +5127,7 @@ void reply_writeclose(struct smb_request *req)
        size_t numtowrite;
        ssize_t nwritten = -1;
        NTSTATUS close_status = NT_STATUS_OK;
-       SMB_OFF_T startpos;
+       off_t startpos;
        const char *data;
        struct timespec mtime;
        files_struct *fsp;
@@ -4986,8 +5185,8 @@ void reply_writeclose(struct smb_request *req)
                close_status = close_file(req, fsp, NORMAL_CLOSE);
        }
 
-       DEBUG(3,("writeclose fnum=%d num=%d wrote=%d (numopen=%d)\n",
-                fsp->fnum, (int)numtowrite, (int)nwritten,
+       DEBUG(3,("writeclose %s num=%d wrote=%d (numopen=%d)\n",
+                fsp_fnum_dbg(fsp), (int)numtowrite, (int)nwritten,
                 conn->num_files_open));
 
        if(((nwritten == 0) && (numtowrite != 0))||(nwritten < 0)) {
@@ -5046,8 +5245,8 @@ void reply_lock(struct smb_request *req)
        count = (uint64_t)IVAL(req->vwv+1, 0);
        offset = (uint64_t)IVAL(req->vwv+3, 0);
 
-       DEBUG(3,("lock fd=%d fnum=%d offset=%.0f count=%.0f\n",
-                fsp->fh->fd, fsp->fnum, (double)offset, (double)count));
+       DEBUG(3,("lock fd=%d %s offset=%.0f count=%.0f\n",
+                fsp->fh->fd, fsp_fnum_dbg(fsp), (double)offset, (double)count));
 
        br_lck = do_lock(req->sconn->msg_ctx,
                        fsp,
@@ -5117,8 +5316,8 @@ void reply_unlock(struct smb_request *req)
                return;
        }
 
-       DEBUG( 3, ( "unlock fd=%d fnum=%d offset=%.0f count=%.0f\n",
-                   fsp->fh->fd, fsp->fnum, (double)offset, (double)count ) );
+       DEBUG( 3, ( "unlock fd=%d %s offset=%.0f count=%.0f\n",
+                   fsp->fh->fd, fsp_fnum_dbg(fsp), (double)offset, (double)count ) );
 
        reply_outbuf(req, 0, 0);
 
@@ -5136,21 +5335,41 @@ void reply_unlock(struct smb_request *req)
 
 void reply_tdis(struct smb_request *req)
 {
+       NTSTATUS status;
        connection_struct *conn = req->conn;
+       struct smbXsrv_tcon *tcon;
+
        START_PROFILE(SMBtdis);
 
        if (!conn) {
                DEBUG(4,("Invalid connection in tdis\n"));
-               reply_nterror(req, NT_STATUS_NETWORK_NAME_DELETED);
+               reply_force_doserror(req, ERRSRV, ERRinvnid);
                END_PROFILE(SMBtdis);
                return;
        }
 
-       conn->used = False;
-
-       close_cnum(conn,req->vuid);
+       tcon = conn->tcon;
        req->conn = NULL;
 
+       /*
+        * TODO: cancel all outstanding requests on the tcon
+        */
+       status = smbXsrv_tcon_disconnect(tcon, req->vuid);
+       if (!NT_STATUS_IS_OK(status)) {
+               DEBUG(0, ("reply_tdis: "
+                         "smbXsrv_tcon_disconnect() failed: %s\n",
+                         nt_errstr(status)));
+               /*
+                * If we hit this case, there is something completely
+                * wrong, so we better disconnect the transport connection.
+                */
+               END_PROFILE(SMBtdis);
+               exit_server(__location__ ": smbXsrv_tcon_disconnect failed");
+               return;
+       }
+
+       TALLOC_FREE(tcon);
+
        reply_outbuf(req, 0, 0);
        END_PROFILE(SMBtdis);
        return;
@@ -5266,8 +5485,8 @@ void reply_printopen(struct smb_request *req)
        reply_outbuf(req, 1, 0);
        SSVAL(req->outbuf,smb_vwv0,fsp->fnum);
 
-       DEBUG(3,("openprint fd=%d fnum=%d\n",
-                fsp->fh->fd, fsp->fnum));
+       DEBUG(3,("openprint fd=%d %s\n",
+                fsp->fh->fd, fsp_fnum_dbg(fsp)));
 
        END_PROFILE(SMBsplopen);
        return;
@@ -5304,8 +5523,8 @@ void reply_printclose(struct smb_request *req)
                return;
        }
 
-       DEBUG(3,("printclose fd=%d fnum=%d\n",
-                fsp->fh->fd,fsp->fnum));
+       DEBUG(3,("printclose fd=%d %s\n",
+                fsp->fh->fd, fsp_fnum_dbg(fsp)));
 
        status = close_file(req, fsp, NORMAL_CLOSE);
 
@@ -5365,7 +5584,7 @@ void reply_printqueue(struct smb_request *req)
                TALLOC_CTX *mem_ctx = talloc_tos();
                NTSTATUS status;
                WERROR werr;
-               const char *sharename = lp_servicename(SNUM(conn));
+               const char *sharename = lp_servicename(mem_ctx, SNUM(conn));
                struct rpc_pipe_client *cli = NULL;
                struct dcerpc_binding_handle *b = NULL;
                struct policy_handle handle;
@@ -5537,13 +5756,13 @@ void reply_printwrite(struct smb_request *req)
 
        data = (const char *)req->buf + 3;
 
-       if (write_file(req,fsp,data,(SMB_OFF_T)-1,numtowrite) != numtowrite) {
+       if (write_file(req,fsp,data,(off_t)-1,numtowrite) != numtowrite) {
                reply_nterror(req, map_nt_error_from_unix(errno));
                END_PROFILE(SMBsplwr);
                return;
        }
 
-       DEBUG( 3, ( "printwrite fnum=%d num=%d\n", fsp->fnum, numtowrite ) );
+       DEBUG(3, ("printwrite %s num=%d\n", fsp_fnum_dbg(fsp), numtowrite));
 
        END_PROFILE(SMBsplwr);
        return;
@@ -5696,7 +5915,9 @@ void reply_rmdir(struct smb_request *req)
                goto out;
        }
 
-       if (!set_delete_on_close(fsp, true, conn->session_info->unix_token)) {
+       if (!set_delete_on_close(fsp, true,
+                       conn->session_info->security_token,
+                       conn->session_info->unix_token)) {
                close_file(req, fsp, ERROR_CLOSE);
                reply_nterror(req, NT_STATUS_ACCESS_DENIED);
                goto out;
@@ -5860,7 +6081,7 @@ static void rename_open_files(connection_struct *conn,
        NTSTATUS status;
        uint32_t new_name_hash = 0;
 
-       for(fsp = file_find_di_first(conn->sconn, lck->id); fsp;
+       for(fsp = file_find_di_first(conn->sconn, lck->data->id); fsp;
            fsp = file_find_di_next(fsp)) {
                /* fsp_name is a relative path under the fsp. To change this for other
                   sharepaths we need to manipulate relative paths. */
@@ -5872,8 +6093,8 @@ static void rename_open_files(connection_struct *conn,
                if (fsp->name_hash != orig_name_hash) {
                        continue;
                }
-               DEBUG(10, ("rename_open_files: renaming file fnum %d "
-                          "(file_id %s) from %s -> %s\n", fsp->fnum,
+               DEBUG(10, ("rename_open_files: renaming file %s "
+                          "(file_id %s) from %s -> %s\n", fsp_fnum_dbg(fsp),
                           file_id_string_tos(&fsp->file_id), fsp_str_dbg(fsp),
                           smb_fname_str_dbg(smb_fname_dst)));
 
@@ -5886,7 +6107,7 @@ static void rename_open_files(connection_struct *conn,
 
        if (!did_rename) {
                DEBUG(10, ("rename_open_files: no open files on file_id %s "
-                          "for %s\n", file_id_string_tos(&lck->id),
+                          "for %s\n", file_id_string_tos(&lck->data->id),
                           smb_fname_str_dbg(smb_fname_dst)));
        }
 
@@ -6212,8 +6433,7 @@ NTSTATUS rename_internals_fsp(connection_struct *conn,
                status = NT_STATUS_ACCESS_DENIED;
        }
 
-       lck = get_share_mode_lock(talloc_tos(), fsp->file_id, NULL, NULL,
-                                 NULL);
+       lck = get_existing_share_mode_lock(talloc_tos(), fsp->file_id);
 
        /*
         * We have the file open ourselves, so not being able to get the
@@ -6229,7 +6449,8 @@ NTSTATUS rename_internals_fsp(connection_struct *conn,
                          "%s -> %s\n", smb_fname_str_dbg(fsp->fsp_name),
                          smb_fname_str_dbg(smb_fname_dst)));
 
-               if (!lp_posix_pathnames() &&
+               if (!fsp->is_directory &&
+                   !lp_posix_pathnames() &&
                    (lp_map_archive(SNUM(conn)) ||
                    lp_store_dos_attributes(SNUM(conn)))) {
                        /* We must set the archive bit on the newly
@@ -6317,6 +6538,7 @@ NTSTATUS rename_internals(TALLOC_CTX *ctx,
        long offset = 0;
        int create_options = 0;
        bool posix_pathnames = lp_posix_pathnames();
+       int rc;
 
        /*
         * Split the old name into directory and last component
@@ -6409,9 +6631,13 @@ NTSTATUS rename_internals(TALLOC_CTX *ctx,
 
                ZERO_STRUCT(smb_fname_src->st);
                if (posix_pathnames) {
-                       SMB_VFS_LSTAT(conn, smb_fname_src);
+                       rc = SMB_VFS_LSTAT(conn, smb_fname_src);
                } else {
-                       SMB_VFS_STAT(conn, smb_fname_src);
+                       rc = SMB_VFS_STAT(conn, smb_fname_src);
+               }
+               if (rc == -1) {
+                       status = map_nt_error_from_unix_common(errno);
+                       goto out;
                }
 
                if (S_ISDIR(smb_fname_src->st.st_ex_mode)) {
@@ -6649,6 +6875,8 @@ void reply_mv(struct smb_request *req)
        TALLOC_CTX *ctx = talloc_tos();
        struct smb_filename *smb_fname_src = NULL;
        struct smb_filename *smb_fname_dst = NULL;
+       uint32_t src_ucf_flags = lp_posix_pathnames() ? UCF_UNIX_NAME_LOOKUP : UCF_COND_ALLOW_WCARD_LCOMP;
+       uint32_t dst_ucf_flags = UCF_SAVE_LCOMP | (lp_posix_pathnames() ? 0 : UCF_COND_ALLOW_WCARD_LCOMP);
        bool stream_rename = false;
 
        START_PROFILE(SMBmv);
@@ -6691,7 +6919,7 @@ void reply_mv(struct smb_request *req)
                                  conn,
                                  req->flags2 & FLAGS2_DFS_PATHNAMES,
                                  name,
-                                 UCF_COND_ALLOW_WCARD_LCOMP,
+                                 src_ucf_flags,
                                  &src_has_wcard,
                                  &smb_fname_src);
 
@@ -6709,7 +6937,7 @@ void reply_mv(struct smb_request *req)
                                  conn,
                                  req->flags2 & FLAGS2_DFS_PATHNAMES,
                                  newname,
-                                 UCF_COND_ALLOW_WCARD_LCOMP | UCF_SAVE_LCOMP,
+                                 dst_ucf_flags,
                                  &dest_has_wcard,
                                  &smb_fname_dst);
 
@@ -6775,7 +7003,7 @@ NTSTATUS copy_file(TALLOC_CTX *ctx,
                        bool target_is_directory)
 {
        struct smb_filename *smb_fname_dst_tmp = NULL;
-       SMB_OFF_T ret=-1;
+       off_t ret=-1;
        files_struct *fsp1,*fsp2;
        uint32 dosattrs;
        uint32 new_create_disposition;
@@ -6920,7 +7148,7 @@ NTSTATUS copy_file(TALLOC_CTX *ctx,
                goto out;
        }
 
-       if (ret != (SMB_OFF_T)smb_fname_src->st.st_ex_size) {
+       if (ret != (off_t)smb_fname_src->st.st_ex_size) {
                status = NT_STATUS_DISK_FULL;
                goto out;
        }
@@ -7647,8 +7875,8 @@ NTSTATUS smbd_do_locking(struct smb_request *req,
                return status;
        }
 
-       DEBUG(3, ("smbd_do_locking: fnum=%d type=%d num_locks=%d num_ulocks=%d\n",
-                 fsp->fnum, (unsigned int)type, num_locks, num_ulocks));
+       DEBUG(3, ("smbd_do_locking: %s type=%d num_locks=%d num_ulocks=%d\n",
+                 fsp_fnum_dbg(fsp), (unsigned int)type, num_locks, num_ulocks));
 
        return NT_STATUS_OK;
 }
@@ -7716,8 +7944,8 @@ void reply_lockingX(struct smb_request *req)
                bool result;
 
                DEBUG(5,("reply_lockingX: oplock break reply (%u) from client "
-                        "for fnum = %d\n", (unsigned int)oplocklevel,
-                        fsp->fnum ));
+                        "for %s\n", (unsigned int)oplocklevel,
+                        fsp_fnum_dbg(fsp)));
 
                /*
                 * Make sure we have granted an exclusive or batch oplock on
@@ -7733,9 +7961,9 @@ void reply_lockingX(struct smb_request *req)
                           message here - just ignore it. JRA. */
 
                        DEBUG(5,("reply_lockingX: Error : oplock break from "
-                                "client for fnum = %d (oplock=%d) and no "
+                                "client for %s (oplock=%d) and no "
                                 "oplock granted on this file (%s).\n",
-                                fsp->fnum, fsp->oplock_type,
+                                fsp_fnum_dbg(fsp), fsp->oplock_type,
                                 fsp_str_dbg(fsp)));
 
                        /* if this is a pure oplock break request then don't
@@ -7870,12 +8098,13 @@ void reply_lockingX(struct smb_request *req)
        }
 
        reply_outbuf(req, 2, 0);
+       SSVAL(req->outbuf, smb_vwv0, 0xff); /* andx chain ends */
+       SSVAL(req->outbuf, smb_vwv1, 0);    /* no andx offset */
 
-       DEBUG(3, ("lockingX fnum=%d type=%d num_locks=%d num_ulocks=%d\n",
-                 fsp->fnum, (unsigned int)locktype, num_locks, num_ulocks));
+       DEBUG(3, ("lockingX %s type=%d num_locks=%d num_ulocks=%d\n",
+                 fsp_fnum_dbg(fsp), (unsigned int)locktype, num_locks, num_ulocks));
 
        END_PROFILE(SMBlockingX);
-       chain_reply(req);
 }
 
 #undef DBGC_CLASS
@@ -7971,9 +8200,9 @@ void reply_setattrE(struct smb_request *req)
                goto out;
        }
 
-       DEBUG( 3, ( "reply_setattrE fnum=%d actime=%u modtime=%u "
+       DEBUG( 3, ( "reply_setattrE %s actime=%u modtime=%u "
               " createtime=%u\n",
-               fsp->fnum,
+               fsp_fnum_dbg(fsp),
                (unsigned int)ft.atime.tv_sec,
                (unsigned int)ft.mtime.tv_sec,
                (unsigned int)ft.create_time.tv_sec
@@ -8076,7 +8305,7 @@ void reply_getattrE(struct smb_request *req)
        }
        SSVAL(req->outbuf,smb_vwv10, mode);
 
-       DEBUG( 3, ( "reply_getattrE fnum=%d\n", fsp->fnum));
+       DEBUG( 3, ( "reply_getattrE %s\n", fsp_fnum_dbg(fsp)));
 
        END_PROFILE(SMBgetattrE);
        return;