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authorStefan Metzmacher <metze@samba.org>2005-11-17 08:00:48 +0000
committerGerald (Jerry) Carter <jerry@samba.org>2007-10-10 13:46:23 -0500
commitace255a54b46e04a453f955b72bca4313150eaa7 (patch)
tree18c8f4862cf005d81f6bb672bb8a9b24d7e9e30b /source4
parentc3cd4a0087d61a147f4a2f06f1668230f6704e7c (diff)
downloadsamba-ace255a54b46e04a453f955b72bca4313150eaa7.tar.gz
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r11757: make smb_server.c independent from the protocol
metze (This used to be commit b606d5664dde64412dc29c1499322c5de4c262d5)
Diffstat (limited to 'source4')
-rw-r--r--source4/smb_server/config.mk1
-rw-r--r--source4/smb_server/receive.c633
-rw-r--r--source4/smb_server/smb_server.c611
3 files changed, 637 insertions, 608 deletions
diff --git a/source4/smb_server/config.mk b/source4/smb_server/config.mk
index c1eadf9397..14b24b19b0 100644
--- a/source4/smb_server/config.mk
+++ b/source4/smb_server/config.mk
@@ -10,6 +10,7 @@ ADD_OBJ_FILES = \
negprot.o \
nttrans.o \
session.o \
+ receive.o \
reply.o \
request.o \
search.o \
diff --git a/source4/smb_server/receive.c b/source4/smb_server/receive.c
new file mode 100644
index 0000000000..b339f1391a
--- /dev/null
+++ b/source4/smb_server/receive.c
@@ -0,0 +1,633 @@
+/*
+ Unix SMB/CIFS implementation.
+ process incoming packets - main loop
+ Copyright (C) Andrew Tridgell 1992-2005
+ Copyright (C) James J Myers 2003 <myersjj@samba.org>
+ Copyright (C) Stefan Metzmacher 2004-2005
+
+ 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 2 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, write to the Free Software
+ Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+*/
+
+#include "includes.h"
+#include "lib/events/events.h"
+#include "system/time.h"
+#include "dlinklist.h"
+#include "smbd/service_stream.h"
+#include "smb_server/smb_server.h"
+#include "lib/messaging/irpc.h"
+#include "lib/stream/packet.h"
+
+
+/*
+ send an oplock break request to a client
+*/
+BOOL req_send_oplock_break(struct smbsrv_tcon *tcon, uint16_t fnum, uint8_t level)
+{
+ struct smbsrv_request *req;
+
+ req = init_smb_request(tcon->smb_conn);
+
+ req_setup_reply(req, 8, 0);
+
+ SCVAL(req->out.hdr,HDR_COM,SMBlockingX);
+ SSVAL(req->out.hdr,HDR_TID,tcon->tid);
+ SSVAL(req->out.hdr,HDR_PID,0xFFFF);
+ SSVAL(req->out.hdr,HDR_UID,0);
+ SSVAL(req->out.hdr,HDR_MID,0xFFFF);
+ SCVAL(req->out.hdr,HDR_FLG,0);
+ SSVAL(req->out.hdr,HDR_FLG2,0);
+
+ SSVAL(req->out.vwv, VWV(0), SMB_CHAIN_NONE);
+ SSVAL(req->out.vwv, VWV(1), 0);
+ SSVAL(req->out.vwv, VWV(2), fnum);
+ SCVAL(req->out.vwv, VWV(3), LOCKING_ANDX_OPLOCK_RELEASE);
+ SCVAL(req->out.vwv, VWV(3)+1, level);
+ SIVAL(req->out.vwv, VWV(4), 0);
+ SSVAL(req->out.vwv, VWV(6), 0);
+ SSVAL(req->out.vwv, VWV(7), 0);
+
+ req_send_reply(req);
+ return True;
+}
+
+static void switch_message(int type, struct smbsrv_request *req);
+
+/****************************************************************************
+receive a SMB request header from the wire, forming a request_context
+from the result
+****************************************************************************/
+NTSTATUS smbsrv_recv_smb_request(void *private, DATA_BLOB blob)
+{
+ struct smbsrv_connection *smb_conn = talloc_get_type(private, struct smbsrv_connection);
+ struct smbsrv_request *req;
+ uint8_t command;
+
+ /* see if its a special NBT packet */
+ if (CVAL(blob.data, 0) != 0) {
+ req = init_smb_request(smb_conn);
+ NT_STATUS_HAVE_NO_MEMORY(req);
+
+ ZERO_STRUCT(req->in);
+
+ req->in.buffer = talloc_steal(req, blob.data);
+ req->in.size = blob.length;
+ req->request_time = timeval_current();
+
+ reply_special(req);
+ return NT_STATUS_OK;
+ }
+
+ if ((NBT_HDR_SIZE + MIN_SMB_SIZE) > blob.length) {
+ DEBUG(2,("Invalid SMB packet: length %d\n", blob.length));
+ smbsrv_terminate_connection(smb_conn, "Invalid SMB packet");
+ return NT_STATUS_OK;
+ }
+
+ /* Make sure this is an SMB packet */
+ if (IVAL(blob.data, NBT_HDR_SIZE) != SMB_MAGIC) {
+ DEBUG(2,("Non-SMB packet of length %d. Terminating connection\n",
+ blob.length));
+ smbsrv_terminate_connection(smb_conn, "Non-SMB packet");
+ return NT_STATUS_OK;
+ }
+
+ req = init_smb_request(smb_conn);
+ NT_STATUS_HAVE_NO_MEMORY(req);
+
+ req->in.buffer = talloc_steal(req, blob.data);
+ req->in.size = blob.length;
+ req->request_time = timeval_current();
+ req->chained_fnum = -1;
+ req->in.allocated = req->in.size;
+ req->in.hdr = req->in.buffer + NBT_HDR_SIZE;
+ req->in.vwv = req->in.hdr + HDR_VWV;
+ req->in.wct = CVAL(req->in.hdr, HDR_WCT);
+ if (req->in.vwv + VWV(req->in.wct) <= req->in.buffer + req->in.size) {
+ req->in.data = req->in.vwv + VWV(req->in.wct) + 2;
+ req->in.data_size = SVAL(req->in.vwv, VWV(req->in.wct));
+
+ /* the bcc length is only 16 bits, but some packets
+ (such as SMBwriteX) can be much larger than 64k. We
+ detect this by looking for a large non-chained NBT
+ packet (at least 64k bigger than what is
+ specified). If it is detected then the NBT size is
+ used instead of the bcc size */
+ if (req->in.data_size + 0x10000 <=
+ req->in.size - PTR_DIFF(req->in.data, req->in.buffer) &&
+ (req->in.wct < 1 || SVAL(req->in.vwv, VWV(0)) == SMB_CHAIN_NONE)) {
+ /* its an oversized packet! fun for all the family */
+ req->in.data_size = req->in.size - PTR_DIFF(req->in.data,req->in.buffer);
+ }
+ }
+
+ if (NBT_HDR_SIZE + MIN_SMB_SIZE + 2*req->in.wct > req->in.size) {
+ DEBUG(2,("Invalid SMB word count %d\n", req->in.wct));
+ smbsrv_terminate_connection(req->smb_conn, "Invalid SMB packet");
+ return NT_STATUS_OK;
+ }
+
+ if (NBT_HDR_SIZE + MIN_SMB_SIZE + 2*req->in.wct + req->in.data_size > req->in.size) {
+ DEBUG(2,("Invalid SMB buffer length count %d\n", req->in.data_size));
+ smbsrv_terminate_connection(req->smb_conn, "Invalid SMB packet");
+ return NT_STATUS_OK;
+ }
+
+ req->flags = CVAL(req->in.hdr, HDR_FLG);
+ req->flags2 = SVAL(req->in.hdr, HDR_FLG2);
+ req->smbpid = SVAL(req->in.hdr, HDR_PID);
+
+ if (!req_signing_check_incoming(req)) {
+ req_reply_error(req, NT_STATUS_ACCESS_DENIED);
+ return NT_STATUS_OK;
+ }
+
+ command = CVAL(req->in.hdr, HDR_COM);
+ switch_message(command, req);
+ return NT_STATUS_OK;
+}
+
+/*
+ These flags determine some of the permissions required to do an operation
+*/
+#define AS_USER (1<<0)
+#define SIGNING_NO_REPLY (1<<1)
+
+/*
+ define a list of possible SMB messages and their corresponding
+ functions. Any message that has a NULL function is unimplemented -
+ please feel free to contribute implementations!
+*/
+static const struct smb_message_struct
+{
+ const char *name;
+ void (*fn)(struct smbsrv_request *);
+ int flags;
+}
+ smb_messages[256] = {
+/* 0x00 */ { "SMBmkdir",reply_mkdir,AS_USER},
+/* 0x01 */ { "SMBrmdir",reply_rmdir,AS_USER},
+/* 0x02 */ { "SMBopen",reply_open,AS_USER},
+/* 0x03 */ { "SMBcreate",reply_mknew,AS_USER},
+/* 0x04 */ { "SMBclose",reply_close,AS_USER},
+/* 0x05 */ { "SMBflush",reply_flush,AS_USER},
+/* 0x06 */ { "SMBunlink",reply_unlink,AS_USER},
+/* 0x07 */ { "SMBmv",reply_mv,AS_USER},
+/* 0x08 */ { "SMBgetatr",reply_getatr,AS_USER},
+/* 0x09 */ { "SMBsetatr",reply_setatr,AS_USER},
+/* 0x0a */ { "SMBread",reply_read,AS_USER},
+/* 0x0b */ { "SMBwrite",reply_write,AS_USER},
+/* 0x0c */ { "SMBlock",reply_lock,AS_USER},
+/* 0x0d */ { "SMBunlock",reply_unlock,AS_USER},
+/* 0x0e */ { "SMBctemp",reply_ctemp,AS_USER },
+/* 0x0f */ { "SMBmknew",reply_mknew,AS_USER},
+/* 0x10 */ { "SMBchkpth",reply_chkpth,AS_USER},
+/* 0x11 */ { "SMBexit",reply_exit,0},
+/* 0x12 */ { "SMBlseek",reply_lseek,AS_USER},
+/* 0x13 */ { "SMBlockread",reply_lockread,AS_USER},
+/* 0x14 */ { "SMBwriteunlock",reply_writeunlock,AS_USER},
+/* 0x15 */ { NULL, NULL, 0 },
+/* 0x16 */ { NULL, NULL, 0 },
+/* 0x17 */ { NULL, NULL, 0 },
+/* 0x18 */ { NULL, NULL, 0 },
+/* 0x19 */ { NULL, NULL, 0 },
+/* 0x1a */ { "SMBreadbraw",reply_readbraw,AS_USER},
+/* 0x1b */ { "SMBreadBmpx",reply_readbmpx,AS_USER},
+/* 0x1c */ { "SMBreadBs",NULL,0 },
+/* 0x1d */ { "SMBwritebraw",reply_writebraw,AS_USER},
+/* 0x1e */ { "SMBwriteBmpx",reply_writebmpx,AS_USER},
+/* 0x1f */ { "SMBwriteBs",reply_writebs,AS_USER},
+/* 0x20 */ { "SMBwritec",NULL,0},
+/* 0x21 */ { NULL, NULL, 0 },
+/* 0x22 */ { "SMBsetattrE",reply_setattrE,AS_USER},
+/* 0x23 */ { "SMBgetattrE",reply_getattrE,AS_USER},
+/* 0x24 */ { "SMBlockingX",reply_lockingX,AS_USER},
+/* 0x25 */ { "SMBtrans",reply_trans,AS_USER},
+/* 0x26 */ { "SMBtranss",reply_transs,AS_USER},
+/* 0x27 */ { "SMBioctl",reply_ioctl,AS_USER},
+/* 0x28 */ { "SMBioctls",NULL,AS_USER},
+/* 0x29 */ { "SMBcopy",reply_copy,AS_USER},
+/* 0x2a */ { "SMBmove",NULL,AS_USER},
+/* 0x2b */ { "SMBecho",reply_echo,0},
+/* 0x2c */ { "SMBwriteclose",reply_writeclose,AS_USER},
+/* 0x2d */ { "SMBopenX",reply_open_and_X,AS_USER},
+/* 0x2e */ { "SMBreadX",reply_read_and_X,AS_USER},
+/* 0x2f */ { "SMBwriteX",reply_write_and_X,AS_USER},
+/* 0x30 */ { NULL, NULL, 0 },
+/* 0x31 */ { NULL, NULL, 0 },
+/* 0x32 */ { "SMBtrans2", reply_trans2, AS_USER},
+/* 0x33 */ { "SMBtranss2", reply_transs2, AS_USER},
+/* 0x34 */ { "SMBfindclose", reply_findclose,AS_USER},
+/* 0x35 */ { "SMBfindnclose", reply_findnclose, AS_USER},
+/* 0x36 */ { NULL, NULL, 0 },
+/* 0x37 */ { NULL, NULL, 0 },
+/* 0x38 */ { NULL, NULL, 0 },
+/* 0x39 */ { NULL, NULL, 0 },
+/* 0x3a */ { NULL, NULL, 0 },
+/* 0x3b */ { NULL, NULL, 0 },
+/* 0x3c */ { NULL, NULL, 0 },
+/* 0x3d */ { NULL, NULL, 0 },
+/* 0x3e */ { NULL, NULL, 0 },
+/* 0x3f */ { NULL, NULL, 0 },
+/* 0x40 */ { NULL, NULL, 0 },
+/* 0x41 */ { NULL, NULL, 0 },
+/* 0x42 */ { NULL, NULL, 0 },
+/* 0x43 */ { NULL, NULL, 0 },
+/* 0x44 */ { NULL, NULL, 0 },
+/* 0x45 */ { NULL, NULL, 0 },
+/* 0x46 */ { NULL, NULL, 0 },
+/* 0x47 */ { NULL, NULL, 0 },
+/* 0x48 */ { NULL, NULL, 0 },
+/* 0x49 */ { NULL, NULL, 0 },
+/* 0x4a */ { NULL, NULL, 0 },
+/* 0x4b */ { NULL, NULL, 0 },
+/* 0x4c */ { NULL, NULL, 0 },
+/* 0x4d */ { NULL, NULL, 0 },
+/* 0x4e */ { NULL, NULL, 0 },
+/* 0x4f */ { NULL, NULL, 0 },
+/* 0x50 */ { NULL, NULL, 0 },
+/* 0x51 */ { NULL, NULL, 0 },
+/* 0x52 */ { NULL, NULL, 0 },
+/* 0x53 */ { NULL, NULL, 0 },
+/* 0x54 */ { NULL, NULL, 0 },
+/* 0x55 */ { NULL, NULL, 0 },
+/* 0x56 */ { NULL, NULL, 0 },
+/* 0x57 */ { NULL, NULL, 0 },
+/* 0x58 */ { NULL, NULL, 0 },
+/* 0x59 */ { NULL, NULL, 0 },
+/* 0x5a */ { NULL, NULL, 0 },
+/* 0x5b */ { NULL, NULL, 0 },
+/* 0x5c */ { NULL, NULL, 0 },
+/* 0x5d */ { NULL, NULL, 0 },
+/* 0x5e */ { NULL, NULL, 0 },
+/* 0x5f */ { NULL, NULL, 0 },
+/* 0x60 */ { NULL, NULL, 0 },
+/* 0x61 */ { NULL, NULL, 0 },
+/* 0x62 */ { NULL, NULL, 0 },
+/* 0x63 */ { NULL, NULL, 0 },
+/* 0x64 */ { NULL, NULL, 0 },
+/* 0x65 */ { NULL, NULL, 0 },
+/* 0x66 */ { NULL, NULL, 0 },
+/* 0x67 */ { NULL, NULL, 0 },
+/* 0x68 */ { NULL, NULL, 0 },
+/* 0x69 */ { NULL, NULL, 0 },
+/* 0x6a */ { NULL, NULL, 0 },
+/* 0x6b */ { NULL, NULL, 0 },
+/* 0x6c */ { NULL, NULL, 0 },
+/* 0x6d */ { NULL, NULL, 0 },
+/* 0x6e */ { NULL, NULL, 0 },
+/* 0x6f */ { NULL, NULL, 0 },
+/* 0x70 */ { "SMBtcon",reply_tcon,0},
+/* 0x71 */ { "SMBtdis",reply_tdis,0},
+/* 0x72 */ { "SMBnegprot",reply_negprot,0},
+/* 0x73 */ { "SMBsesssetupX",reply_sesssetup,0},
+/* 0x74 */ { "SMBulogoffX", reply_ulogoffX, 0}, /* ulogoff doesn't give a valid TID */
+/* 0x75 */ { "SMBtconX",reply_tcon_and_X,0},
+/* 0x76 */ { NULL, NULL, 0 },
+/* 0x77 */ { NULL, NULL, 0 },
+/* 0x78 */ { NULL, NULL, 0 },
+/* 0x79 */ { NULL, NULL, 0 },
+/* 0x7a */ { NULL, NULL, 0 },
+/* 0x7b */ { NULL, NULL, 0 },
+/* 0x7c */ { NULL, NULL, 0 },
+/* 0x7d */ { NULL, NULL, 0 },
+/* 0x7e */ { NULL, NULL, 0 },
+/* 0x7f */ { NULL, NULL, 0 },
+/* 0x80 */ { "SMBdskattr",reply_dskattr,AS_USER},
+/* 0x81 */ { "SMBsearch",reply_search,AS_USER},
+/* 0x82 */ { "SMBffirst",reply_search,AS_USER},
+/* 0x83 */ { "SMBfunique",reply_search,AS_USER},
+/* 0x84 */ { "SMBfclose",reply_fclose,AS_USER},
+/* 0x85 */ { NULL, NULL, 0 },
+/* 0x86 */ { NULL, NULL, 0 },
+/* 0x87 */ { NULL, NULL, 0 },
+/* 0x88 */ { NULL, NULL, 0 },
+/* 0x89 */ { NULL, NULL, 0 },
+/* 0x8a */ { NULL, NULL, 0 },
+/* 0x8b */ { NULL, NULL, 0 },
+/* 0x8c */ { NULL, NULL, 0 },
+/* 0x8d */ { NULL, NULL, 0 },
+/* 0x8e */ { NULL, NULL, 0 },
+/* 0x8f */ { NULL, NULL, 0 },
+/* 0x90 */ { NULL, NULL, 0 },
+/* 0x91 */ { NULL, NULL, 0 },
+/* 0x92 */ { NULL, NULL, 0 },
+/* 0x93 */ { NULL, NULL, 0 },
+/* 0x94 */ { NULL, NULL, 0 },
+/* 0x95 */ { NULL, NULL, 0 },
+/* 0x96 */ { NULL, NULL, 0 },
+/* 0x97 */ { NULL, NULL, 0 },
+/* 0x98 */ { NULL, NULL, 0 },
+/* 0x99 */ { NULL, NULL, 0 },
+/* 0x9a */ { NULL, NULL, 0 },
+/* 0x9b */ { NULL, NULL, 0 },
+/* 0x9c */ { NULL, NULL, 0 },
+/* 0x9d */ { NULL, NULL, 0 },
+/* 0x9e */ { NULL, NULL, 0 },
+/* 0x9f */ { NULL, NULL, 0 },
+/* 0xa0 */ { "SMBnttrans", reply_nttrans, AS_USER},
+/* 0xa1 */ { "SMBnttranss", reply_nttranss, AS_USER},
+/* 0xa2 */ { "SMBntcreateX", reply_ntcreate_and_X, AS_USER},
+/* 0xa3 */ { NULL, NULL, 0 },
+/* 0xa4 */ { "SMBntcancel", reply_ntcancel, AS_USER|SIGNING_NO_REPLY},
+/* 0xa5 */ { "SMBntrename", reply_ntrename, AS_USER},
+/* 0xa6 */ { NULL, NULL, 0 },
+/* 0xa7 */ { NULL, NULL, 0 },
+/* 0xa8 */ { NULL, NULL, 0 },
+/* 0xa9 */ { NULL, NULL, 0 },
+/* 0xaa */ { NULL, NULL, 0 },
+/* 0xab */ { NULL, NULL, 0 },
+/* 0xac */ { NULL, NULL, 0 },
+/* 0xad */ { NULL, NULL, 0 },
+/* 0xae */ { NULL, NULL, 0 },
+/* 0xaf */ { NULL, NULL, 0 },
+/* 0xb0 */ { NULL, NULL, 0 },
+/* 0xb1 */ { NULL, NULL, 0 },
+/* 0xb2 */ { NULL, NULL, 0 },
+/* 0xb3 */ { NULL, NULL, 0 },
+/* 0xb4 */ { NULL, NULL, 0 },
+/* 0xb5 */ { NULL, NULL, 0 },
+/* 0xb6 */ { NULL, NULL, 0 },
+/* 0xb7 */ { NULL, NULL, 0 },
+/* 0xb8 */ { NULL, NULL, 0 },
+/* 0xb9 */ { NULL, NULL, 0 },
+/* 0xba */ { NULL, NULL, 0 },
+/* 0xbb */ { NULL, NULL, 0 },
+/* 0xbc */ { NULL, NULL, 0 },
+/* 0xbd */ { NULL, NULL, 0 },
+/* 0xbe */ { NULL, NULL, 0 },
+/* 0xbf */ { NULL, NULL, 0 },
+/* 0xc0 */ { "SMBsplopen",reply_printopen,AS_USER },
+/* 0xc1 */ { "SMBsplwr",reply_printwrite,AS_USER},
+/* 0xc2 */ { "SMBsplclose",reply_printclose,AS_USER},
+/* 0xc3 */ { "SMBsplretq",reply_printqueue,AS_USER},
+/* 0xc4 */ { NULL, NULL, 0 },
+/* 0xc5 */ { NULL, NULL, 0 },
+/* 0xc6 */ { NULL, NULL, 0 },
+/* 0xc7 */ { NULL, NULL, 0 },
+/* 0xc8 */ { NULL, NULL, 0 },
+/* 0xc9 */ { NULL, NULL, 0 },
+/* 0xca */ { NULL, NULL, 0 },
+/* 0xcb */ { NULL, NULL, 0 },
+/* 0xcc */ { NULL, NULL, 0 },
+/* 0xcd */ { NULL, NULL, 0 },
+/* 0xce */ { NULL, NULL, 0 },
+/* 0xcf */ { NULL, NULL, 0 },
+/* 0xd0 */ { "SMBsends",reply_sends,0},
+/* 0xd1 */ { "SMBsendb",NULL,0},
+/* 0xd2 */ { "SMBfwdname",NULL,0},
+/* 0xd3 */ { "SMBcancelf",NULL,0},
+/* 0xd4 */ { "SMBgetmac",NULL,0},
+/* 0xd5 */ { "SMBsendstrt",reply_sendstrt,0},
+/* 0xd6 */ { "SMBsendend",reply_sendend,0},
+/* 0xd7 */ { "SMBsendtxt",reply_sendtxt,0},
+/* 0xd8 */ { NULL, NULL, 0 },
+/* 0xd9 */ { NULL, NULL, 0 },
+/* 0xda */ { NULL, NULL, 0 },
+/* 0xdb */ { NULL, NULL, 0 },
+/* 0xdc */ { NULL, NULL, 0 },
+/* 0xdd */ { NULL, NULL, 0 },
+/* 0xde */ { NULL, NULL, 0 },
+/* 0xdf */ { NULL, NULL, 0 },
+/* 0xe0 */ { NULL, NULL, 0 },
+/* 0xe1 */ { NULL, NULL, 0 },
+/* 0xe2 */ { NULL, NULL, 0 },
+/* 0xe3 */ { NULL, NULL, 0 },
+/* 0xe4 */ { NULL, NULL, 0 },
+/* 0xe5 */ { NULL, NULL, 0 },
+/* 0xe6 */ { NULL, NULL, 0 },
+/* 0xe7 */ { NULL, NULL, 0 },
+/* 0xe8 */ { NULL, NULL, 0 },
+/* 0xe9 */ { NULL, NULL, 0 },
+/* 0xea */ { NULL, NULL, 0 },
+/* 0xeb */ { NULL, NULL, 0 },
+/* 0xec */ { NULL, NULL, 0 },
+/* 0xed */ { NULL, NULL, 0 },
+/* 0xee */ { NULL, NULL, 0 },
+/* 0xef */ { NULL, NULL, 0 },
+/* 0xf0 */ { NULL, NULL, 0 },
+/* 0xf1 */ { NULL, NULL, 0 },
+/* 0xf2 */ { NULL, NULL, 0 },
+/* 0xf3 */ { NULL, NULL, 0 },
+/* 0xf4 */ { NULL, NULL, 0 },
+/* 0xf5 */ { NULL, NULL, 0 },
+/* 0xf6 */ { NULL, NULL, 0 },
+/* 0xf7 */ { NULL, NULL, 0 },
+/* 0xf8 */ { NULL, NULL, 0 },
+/* 0xf9 */ { NULL, NULL, 0 },
+/* 0xfa */ { NULL, NULL, 0 },
+/* 0xfb */ { NULL, NULL, 0 },
+/* 0xfc */ { NULL, NULL, 0 },
+/* 0xfd */ { NULL, NULL, 0 },
+/* 0xfe */ { NULL, NULL, 0 },
+/* 0xff */ { NULL, NULL, 0 }
+};
+
+/****************************************************************************
+return a string containing the function name of a SMB command
+****************************************************************************/
+static const char *smb_fn_name(uint8_t type)
+{
+ const char *unknown_name = "SMBunknown";
+
+ if (smb_messages[type].name == NULL)
+ return unknown_name;
+
+ return smb_messages[type].name;
+}
+
+
+/****************************************************************************
+ Do a switch on the message type and call the specific reply function for this
+message. Unlike earlier versions of Samba the reply functions are responsible
+for sending the reply themselves, rather than returning a size to this function
+The reply functions may also choose to delay the processing by pushing the message
+onto the message queue
+****************************************************************************/
+static void switch_message(int type, struct smbsrv_request *req)
+{
+ int flags;
+ struct smbsrv_connection *smb_conn = req->smb_conn;
+ uint16_t session_tag;
+ NTSTATUS status;
+
+ type &= 0xff;
+
+ errno = 0;
+
+ if (smb_messages[type].fn == NULL) {
+ DEBUG(0,("Unknown message type %d!\n",type));
+ reply_unknown(req);
+ return;
+ }
+
+ flags = smb_messages[type].flags;
+
+ req->tcon = smbsrv_tcon_find(smb_conn, SVAL(req->in.hdr,HDR_TID));
+
+ if (req->session == NULL) {
+ /* setup the user context for this request if it
+ hasn't already been initialised (to cope with SMB
+ chaining) */
+
+ /* In share mode security we must ignore the vuid. */
+ if (smb_conn->config.security == SEC_SHARE) {
+ session_tag = UID_FIELD_INVALID;
+ } else {
+ session_tag = SVAL(req->in.hdr,HDR_UID);
+ }
+
+ req->session = smbsrv_session_find(req->smb_conn, session_tag);
+ if (req->session) {
+ req->session->vuid = session_tag;
+ }
+ } else {
+ session_tag = req->session->vuid;
+ }
+
+ DEBUG(3,("switch message %s (task_id %d)\n",smb_fn_name(type), req->smb_conn->connection->server_id));
+
+ /* this must be called before we do any reply */
+ if (flags & SIGNING_NO_REPLY) {
+ req_signing_no_reply(req);
+ }
+
+ /* see if the vuid is valid */
+ if ((flags & AS_USER) && !req->session) {
+ /* amazingly, the error code depends on the command */
+ switch (type) {
+ case SMBntcreateX:
+ case SMBntcancel:
+ status = NT_STATUS_DOS(ERRSRV, ERRbaduid);
+ break;
+ default:
+ status = NT_STATUS_INVALID_HANDLE;
+ break;
+ }
+ /*
+ * TODO:
+ * don't know how to handle smb signing for this case
+ * so just skip the reply
+ */
+ if ((flags & SIGNING_NO_REPLY) &&
+ (req->smb_conn->signing.signing_state != SMB_SIGNING_ENGINE_OFF)) {
+ DEBUG(1,("SKIP ERROR REPLY: %s %s because of unknown smb signing case\n",
+ smb_fn_name(type), nt_errstr(status)));
+ req_destroy(req);
+ return;
+ }
+ req_reply_error(req, status);
+ return;
+ }
+
+ /* does this protocol need a valid tree connection? */
+ if ((flags & AS_USER) && !req->tcon) {
+ /* amazingly, the error code depends on the command */
+ switch (type) {
+ case SMBntcreateX:
+ case SMBntcancel:
+ status = NT_STATUS_DOS(ERRSRV, ERRinvnid);
+ break;
+ default:
+ status = NT_STATUS_INVALID_HANDLE;
+ break;
+ }
+ /*
+ * TODO:
+ * don't know how to handle smb signing for this case
+ * so just skip the reply
+ */
+ if ((flags & SIGNING_NO_REPLY) &&
+ (req->smb_conn->signing.signing_state != SMB_SIGNING_ENGINE_OFF)) {
+ DEBUG(1,("SKIP ERROR REPLY: %s %s because of unknown smb signing case\n",
+ smb_fn_name(type), nt_errstr(status)));
+ req_destroy(req);
+ return;
+ }
+ req_reply_error(req, status);
+ return;
+ }
+
+ smb_messages[type].fn(req);
+}
+
+/*
+ we call this when first first part of a possibly chained request has been completed
+ and we need to call the 2nd part, if any
+*/
+void chain_reply(struct smbsrv_request *req)
+{
+ uint16_t chain_cmd, chain_offset;
+ uint8_t *vwv, *data;
+ uint16_t wct;
+ uint16_t data_size;
+
+ if (req->in.wct < 2 || req->out.wct < 2) {
+ req_reply_dos_error(req, ERRSRV, ERRerror);
+ return;
+ }
+
+ chain_cmd = CVAL(req->in.vwv, VWV(0));
+ chain_offset = SVAL(req->in.vwv, VWV(1));
+
+ if (chain_cmd == SMB_CHAIN_NONE) {
+ /* end of chain */
+ SSVAL(req->out.vwv, VWV(0), SMB_CHAIN_NONE);
+ SSVAL(req->out.vwv, VWV(1), 0);
+ req_send_reply(req);
+ return;
+ }
+
+ if (chain_offset + req->in.hdr >= req->in.buffer + req->in.size) {
+ goto error;
+ }
+
+ wct = CVAL(req->in.hdr, chain_offset);
+ vwv = req->in.hdr + chain_offset + 1;
+
+ if (vwv + VWV(wct) + 2 > req->in.buffer + req->in.size) {
+ goto error;
+ }
+
+ data_size = SVAL(vwv, VWV(wct));
+ data = vwv + VWV(wct) + 2;
+
+ if (data + data_size > req->in.buffer + req->in.size) {
+ goto error;
+ }
+
+ /* all seems legit */
+ req->in.vwv = vwv;
+ req->in.wct = wct;
+ req->in.data = data;
+ req->in.data_size = data_size;
+ req->in.ptr = data;
+
+ req->chain_count++;
+
+ SSVAL(req->out.vwv, VWV(0), chain_cmd);
+ SSVAL(req->out.vwv, VWV(1), req->out.size - NBT_HDR_SIZE);
+
+ /* the current request in the chain might have used an async reply,
+ but that doesn't mean the next element needs to */
+ ZERO_STRUCTP(req->async_states);
+
+ switch_message(chain_cmd, req);
+ return;
+
+error:
+ SSVAL(req->out.vwv, VWV(0), SMB_CHAIN_NONE);
+ SSVAL(req->out.vwv, VWV(1), 0);
+ req_reply_dos_error(req, ERRSRV, ERRerror);
+}
diff --git a/source4/smb_server/smb_server.c b/source4/smb_server/smb_server.c
index 340674b8df..060be4eaea 100644
--- a/source4/smb_server/smb_server.c
+++ b/source4/smb_server/smb_server.c
@@ -1,9 +1,8 @@
/*
Unix SMB/CIFS implementation.
process incoming packets - main loop
- Copyright (C) Andrew Tridgell 1992-2003
- Copyright (C) James J Myers 2003 <myersjj@samba.org>
- Copyright (C) Stefan Metzmacher 2004
+ Copyright (C) Andrew Tridgell 2004-2005
+ Copyright (C) Stefan Metzmacher 2004-2005
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
@@ -29,610 +28,6 @@
#include "lib/messaging/irpc.h"
#include "lib/stream/packet.h"
-
-/*
- send an oplock break request to a client
-*/
-BOOL req_send_oplock_break(struct smbsrv_tcon *tcon, uint16_t fnum, uint8_t level)
-{
- struct smbsrv_request *req;
-
- req = init_smb_request(tcon->smb_conn);
-
- req_setup_reply(req, 8, 0);
-
- SCVAL(req->out.hdr,HDR_COM,SMBlockingX);
- SSVAL(req->out.hdr,HDR_TID,tcon->tid);
- SSVAL(req->out.hdr,HDR_PID,0xFFFF);
- SSVAL(req->out.hdr,HDR_UID,0);
- SSVAL(req->out.hdr,HDR_MID,0xFFFF);
- SCVAL(req->out.hdr,HDR_FLG,0);
- SSVAL(req->out.hdr,HDR_FLG2,0);
-
- SSVAL(req->out.vwv, VWV(0), SMB_CHAIN_NONE);
- SSVAL(req->out.vwv, VWV(1), 0);
- SSVAL(req->out.vwv, VWV(2), fnum);
- SCVAL(req->out.vwv, VWV(3), LOCKING_ANDX_OPLOCK_RELEASE);
- SCVAL(req->out.vwv, VWV(3)+1, level);
- SIVAL(req->out.vwv, VWV(4), 0);
- SSVAL(req->out.vwv, VWV(6), 0);
- SSVAL(req->out.vwv, VWV(7), 0);
-
- req_send_reply(req);
- return True;
-}
-
-static void switch_message(int type, struct smbsrv_request *req);
-
-/****************************************************************************
-receive a SMB request header from the wire, forming a request_context
-from the result
-****************************************************************************/
-static NTSTATUS receive_smb_request(void *private, DATA_BLOB blob)
-{
- struct smbsrv_connection *smb_conn = talloc_get_type(private, struct smbsrv_connection);
- struct smbsrv_request *req;
- uint8_t command;
-
- /* see if its a special NBT packet */
- if (CVAL(blob.data, 0) != 0) {
- req = init_smb_request(smb_conn);
- NT_STATUS_HAVE_NO_MEMORY(req);
-
- ZERO_STRUCT(req->in);
-
- req->in.buffer = talloc_steal(req, blob.data);
- req->in.size = blob.length;
- req->request_time = timeval_current();
-
- reply_special(req);
- return NT_STATUS_OK;
- }
-
- if ((NBT_HDR_SIZE + MIN_SMB_SIZE) > blob.length) {
- DEBUG(2,("Invalid SMB packet: length %d\n", blob.length));
- smbsrv_terminate_connection(smb_conn, "Invalid SMB packet");
- return NT_STATUS_OK;
- }
-
- /* Make sure this is an SMB packet */
- if (IVAL(blob.data, NBT_HDR_SIZE) != SMB_MAGIC) {
- DEBUG(2,("Non-SMB packet of length %d. Terminating connection\n",
- blob.length));
- smbsrv_terminate_connection(smb_conn, "Non-SMB packet");
- return NT_STATUS_OK;
- }
-
- req = init_smb_request(smb_conn);
- NT_STATUS_HAVE_NO_MEMORY(req);
-
- req->in.buffer = talloc_steal(req, blob.data);
- req->in.size = blob.length;
- req->request_time = timeval_current();
- req->chained_fnum = -1;
- req->in.allocated = req->in.size;
- req->in.hdr = req->in.buffer + NBT_HDR_SIZE;
- req->in.vwv = req->in.hdr + HDR_VWV;
- req->in.wct = CVAL(req->in.hdr, HDR_WCT);
- if (req->in.vwv + VWV(req->in.wct) <= req->in.buffer + req->in.size) {
- req->in.data = req->in.vwv + VWV(req->in.wct) + 2;
- req->in.data_size = SVAL(req->in.vwv, VWV(req->in.wct));
-
- /* the bcc length is only 16 bits, but some packets
- (such as SMBwriteX) can be much larger than 64k. We
- detect this by looking for a large non-chained NBT
- packet (at least 64k bigger than what is
- specified). If it is detected then the NBT size is
- used instead of the bcc size */
- if (req->in.data_size + 0x10000 <=
- req->in.size - PTR_DIFF(req->in.data, req->in.buffer) &&
- (req->in.wct < 1 || SVAL(req->in.vwv, VWV(0)) == SMB_CHAIN_NONE)) {
- /* its an oversized packet! fun for all the family */
- req->in.data_size = req->in.size - PTR_DIFF(req->in.data,req->in.buffer);
- }
- }
-
- if (NBT_HDR_SIZE + MIN_SMB_SIZE + 2*req->in.wct > req->in.size) {
- DEBUG(2,("Invalid SMB word count %d\n", req->in.wct));
- smbsrv_terminate_connection(req->smb_conn, "Invalid SMB packet");
- return NT_STATUS_OK;
- }
-
- if (NBT_HDR_SIZE + MIN_SMB_SIZE + 2*req->in.wct + req->in.data_size > req->in.size) {
- DEBUG(2,("Invalid SMB buffer length count %d\n", req->in.data_size));
- smbsrv_terminate_connection(req->smb_conn, "Invalid SMB packet");
- return NT_STATUS_OK;
- }
-
- req->flags = CVAL(req->in.hdr, HDR_FLG);
- req->flags2 = SVAL(req->in.hdr, HDR_FLG2);
- req->smbpid = SVAL(req->in.hdr, HDR_PID);
-
- if (!req_signing_check_incoming(req)) {
- req_reply_error(req, NT_STATUS_ACCESS_DENIED);
- return NT_STATUS_OK;
- }
-
- command = CVAL(req->in.hdr, HDR_COM);
- switch_message(command, req);
- return NT_STATUS_OK;
-}
-
-/*
- These flags determine some of the permissions required to do an operation
-*/
-#define AS_USER (1<<0)
-#define SIGNING_NO_REPLY (1<<1)
-
-/*
- define a list of possible SMB messages and their corresponding
- functions. Any message that has a NULL function is unimplemented -
- please feel free to contribute implementations!
-*/
-static const struct smb_message_struct
-{
- const char *name;
- void (*fn)(struct smbsrv_request *);
- int flags;
-}
- smb_messages[256] = {
-/* 0x00 */ { "SMBmkdir",reply_mkdir,AS_USER},
-/* 0x01 */ { "SMBrmdir",reply_rmdir,AS_USER},
-/* 0x02 */ { "SMBopen",reply_open,AS_USER},
-/* 0x03 */ { "SMBcreate",reply_mknew,AS_USER},
-/* 0x04 */ { "SMBclose",reply_close,AS_USER},
-/* 0x05 */ { "SMBflush",reply_flush,AS_USER},
-/* 0x06 */ { "SMBunlink",reply_unlink,AS_USER},
-/* 0x07 */ { "SMBmv",reply_mv,AS_USER},
-/* 0x08 */ { "SMBgetatr",reply_getatr,AS_USER},
-/* 0x09 */ { "SMBsetatr",reply_setatr,AS_USER},
-/* 0x0a */ { "SMBread",reply_read,AS_USER},
-/* 0x0b */ { "SMBwrite",reply_write,AS_USER},
-/* 0x0c */ { "SMBlock",reply_lock,AS_USER},
-/* 0x0d */ { "SMBunlock",reply_unlock,AS_USER},
-/* 0x0e */ { "SMBctemp",reply_ctemp,AS_USER },
-/* 0x0f */ { "SMBmknew",reply_mknew,AS_USER},
-/* 0x10 */ { "SMBchkpth",reply_chkpth,AS_USER},
-/* 0x11 */ { "SMBexit",reply_exit,0},
-/* 0x12 */ { "SMBlseek",reply_lseek,AS_USER},
-/* 0x13 */ { "SMBlockread",reply_lockread,AS_USER},
-/* 0x14 */ { "SMBwriteunlock",reply_writeunlock,AS_USER},
-/* 0x15 */ { NULL, NULL, 0 },
-/* 0x16 */ { NULL, NULL, 0 },
-/* 0x17 */ { NULL, NULL, 0 },
-/* 0x18 */ { NULL, NULL, 0 },
-/* 0x19 */ { NULL, NULL, 0 },
-/* 0x1a */ { "SMBreadbraw",reply_readbraw,AS_USER},
-/* 0x1b */ { "SMBreadBmpx",reply_readbmpx,AS_USER},
-/* 0x1c */ { "SMBreadBs",NULL,0 },
-/* 0x1d */ { "SMBwritebraw",reply_writebraw,AS_USER},
-/* 0x1e */ { "SMBwriteBmpx",reply_writebmpx,AS_USER},
-/* 0x1f */ { "SMBwriteBs",reply_writebs,AS_USER},
-/* 0x20 */ { "SMBwritec",NULL,0},
-/* 0x21 */ { NULL, NULL, 0 },
-/* 0x22 */ { "SMBsetattrE",reply_setattrE,AS_USER},
-/* 0x23 */ { "SMBgetattrE",reply_getattrE,AS_USER},
-/* 0x24 */ { "SMBlockingX",reply_lockingX,AS_USER},
-/* 0x25 */ { "SMBtrans",reply_trans,AS_USER},
-/* 0x26 */ { "SMBtranss",reply_transs,AS_USER},
-/* 0x27 */ { "SMBioctl",reply_ioctl,AS_USER},
-/* 0x28 */ { "SMBioctls",NULL,AS_USER},
-/* 0x29 */ { "SMBcopy",reply_copy,AS_USER},
-/* 0x2a */ { "SMBmove",NULL,AS_USER},
-/* 0x2b */ { "SMBecho",reply_echo,0},
-/* 0x2c */ { "SMBwriteclose",reply_writeclose,AS_USER},
-/* 0x2d */ { "SMBopenX",reply_open_and_X,AS_USER},
-/* 0x2e */ { "SMBreadX",reply_read_and_X,AS_USER},
-/* 0x2f */ { "SMBwriteX",reply_write_and_X,AS_USER},
-/* 0x30 */ { NULL, NULL, 0 },
-/* 0x31 */ { NULL, NULL, 0 },
-/* 0x32 */ { "SMBtrans2", reply_trans2, AS_USER},
-/* 0x33 */ { "SMBtranss2", reply_transs2, AS_USER},
-/* 0x34 */ { "SMBfindclose", reply_findclose,AS_USER},
-/* 0x35 */ { "SMBfindnclose", reply_findnclose, AS_USER},
-/* 0x36 */ { NULL, NULL, 0 },
-/* 0x37 */ { NULL, NULL, 0 },
-/* 0x38 */ { NULL, NULL, 0 },
-/* 0x39 */ { NULL, NULL, 0 },
-/* 0x3a */ { NULL, NULL, 0 },
-/* 0x3b */ { NULL, NULL, 0 },
-/* 0x3c */ { NULL, NULL, 0 },
-/* 0x3d */ { NULL, NULL, 0 },
-/* 0x3e */ { NULL, NULL, 0 },
-/* 0x3f */ { NULL, NULL, 0 },
-/* 0x40 */ { NULL, NULL, 0 },
-/* 0x41 */ { NULL, NULL, 0 },
-/* 0x42 */ { NULL, NULL, 0 },
-/* 0x43 */ { NULL, NULL, 0 },
-/* 0x44 */ { NULL, NULL, 0 },
-/* 0x45 */ { NULL, NULL, 0 },
-/* 0x46 */ { NULL, NULL, 0 },
-/* 0x47 */ { NULL, NULL, 0 },
-/* 0x48 */ { NULL, NULL, 0 },
-/* 0x49 */ { NULL, NULL, 0 },
-/* 0x4a */ { NULL, NULL, 0 },
-/* 0x4b */ { NULL, NULL, 0 },
-/* 0x4c */ { NULL, NULL, 0 },
-/* 0x4d */ { NULL, NULL, 0 },
-/* 0x4e */ { NULL, NULL, 0 },
-/* 0x4f */ { NULL, NULL, 0 },
-/* 0x50 */ { NULL, NULL, 0 },
-/* 0x51 */ { NULL, NULL, 0 },
-/* 0x52 */ { NULL, NULL, 0 },
-/* 0x53 */ { NULL, NULL, 0 },
-/* 0x54 */ { NULL, NULL, 0 },
-/* 0x55 */ { NULL, NULL, 0 },
-/* 0x56 */ { NULL, NULL, 0 },
-/* 0x57 */ { NULL, NULL, 0 },
-/* 0x58 */ { NULL, NULL, 0 },
-/* 0x59 */ { NULL, NULL, 0 },
-/* 0x5a */ { NULL, NULL, 0 },
-/* 0x5b */ { NULL, NULL, 0 },
-/* 0x5c */ { NULL, NULL, 0 },
-/* 0x5d */ { NULL, NULL, 0 },
-/* 0x5e */ { NULL, NULL, 0 },
-/* 0x5f */ { NULL, NULL, 0 },
-/* 0x60 */ { NULL, NULL, 0 },
-/* 0x61 */ { NULL, NULL, 0 },
-/* 0x62 */ { NULL, NULL, 0 },
-/* 0x63 */ { NULL, NULL, 0 },
-/* 0x64 */ { NULL, NULL, 0 },
-/* 0x65 */ { NULL, NULL, 0 },
-/* 0x66 */ { NULL, NULL, 0 },
-/* 0x67 */ { NULL, NULL, 0 },
-/* 0x68 */ { NULL, NULL, 0 },
-/* 0x69 */ { NULL, NULL, 0 },
-/* 0x6a */ { NULL, NULL, 0 },
-/* 0x6b */ { NULL, NULL, 0 },
-/* 0x6c */ { NULL, NULL, 0 },
-/* 0x6d */ { NULL, NULL, 0 },
-/* 0x6e */ { NULL, NULL, 0 },
-/* 0x6f */ { NULL, NULL, 0 },
-/* 0x70 */ { "SMBtcon",reply_tcon,0},
-/* 0x71 */ { "SMBtdis",reply_tdis,0},
-/* 0x72 */ { "SMBnegprot",reply_negprot,0},
-/* 0x73 */ { "SMBsesssetupX",reply_sesssetup,0},
-/* 0x74 */ { "SMBulogoffX", reply_ulogoffX, 0}, /* ulogoff doesn't give a valid TID */
-/* 0x75 */ { "SMBtconX",reply_tcon_and_X,0},
-/* 0x76 */ { NULL, NULL, 0 },
-/* 0x77 */ { NULL, NULL, 0 },
-/* 0x78 */ { NULL, NULL, 0 },
-/* 0x79 */ { NULL, NULL, 0 },
-/* 0x7a */ { NULL, NULL, 0 },
-/* 0x7b */ { NULL, NULL, 0 },
-/* 0x7c */ { NULL, NULL, 0 },
-/* 0x7d */ { NULL, NULL, 0 },
-/* 0x7e */ { NULL, NULL, 0 },
-/* 0x7f */ { NULL, NULL, 0 },
-/* 0x80 */ { "SMBdskattr",reply_dskattr,AS_USER},
-/* 0x81 */ { "SMBsearch",reply_search,AS_USER},
-/* 0x82 */ { "SMBffirst",reply_search,AS_USER},
-/* 0x83 */ { "SMBfunique",reply_search,AS_USER},
-/* 0x84 */ { "SMBfclose",reply_fclose,AS_USER},
-/* 0x85 */ { NULL, NULL, 0 },
-/* 0x86 */ { NULL, NULL, 0 },
-/* 0x87 */ { NULL, NULL, 0 },
-/* 0x88 */ { NULL, NULL, 0 },
-/* 0x89 */ { NULL, NULL, 0 },
-/* 0x8a */ { NULL, NULL, 0 },
-/* 0x8b */ { NULL, NULL, 0 },
-/* 0x8c */ { NULL, NULL, 0 },
-/* 0x8d */ { NULL, NULL, 0 },
-/* 0x8e */ { NULL, NULL, 0 },
-/* 0x8f */ { NULL, NULL, 0 },
-/* 0x90 */ { NULL, NULL, 0 },
-/* 0x91 */ { NULL, NULL, 0 },
-/* 0x92 */ { NULL, NULL, 0 },
-/* 0x93 */ { NULL, NULL, 0 },
-/* 0x94 */ { NULL, NULL, 0 },
-/* 0x95 */ { NULL, NULL, 0 },
-/* 0x96 */ { NULL, NULL, 0 },
-/* 0x97 */ { NULL, NULL, 0 },
-/* 0x98 */ { NULL, NULL, 0 },
-/* 0x99 */ { NULL, NULL, 0 },
-/* 0x9a */ { NULL, NULL, 0 },
-/* 0x9b */ { NULL, NULL, 0 },
-/* 0x9c */ { NULL, NULL, 0 },
-/* 0x9d */ { NULL, NULL, 0 },
-/* 0x9e */ { NULL, NULL, 0 },
-/* 0x9f */ { NULL, NULL, 0 },
-/* 0xa0 */ { "SMBnttrans", reply_nttrans, AS_USER},
-/* 0xa1 */ { "SMBnttranss", reply_nttranss, AS_USER},
-/* 0xa2 */ { "SMBntcreateX", reply_ntcreate_and_X, AS_USER},
-/* 0xa3 */ { NULL, NULL, 0 },
-/* 0xa4 */ { "SMBntcancel", reply_ntcancel, AS_USER|SIGNING_NO_REPLY},
-/* 0xa5 */ { "SMBntrename", reply_ntrename, AS_USER},
-/* 0xa6 */ { NULL, NULL, 0 },
-/* 0xa7 */ { NULL, NULL, 0 },
-/* 0xa8 */ { NULL, NULL, 0 },
-/* 0xa9 */ { NULL, NULL, 0 },
-/* 0xaa */ { NULL, NULL, 0 },
-/* 0xab */ { NULL, NULL, 0 },
-/* 0xac */ { NULL, NULL, 0 },
-/* 0xad */ { NULL, NULL, 0 },
-/* 0xae */ { NULL, NULL, 0 },
-/* 0xaf */ { NULL, NULL, 0 },
-/* 0xb0 */ { NULL, NULL, 0 },
-/* 0xb1 */ { NULL, NULL, 0 },
-/* 0xb2 */ { NULL, NULL, 0 },
-/* 0xb3 */ { NULL, NULL, 0 },
-/* 0xb4 */ { NULL, NULL, 0 },
-/* 0xb5 */ { NULL, NULL, 0 },
-/* 0xb6 */ { NULL, NULL, 0 },
-/* 0xb7 */ { NULL, NULL, 0 },
-/* 0xb8 */ { NULL, NULL, 0 },
-/* 0xb9 */ { NULL, NULL, 0 },
-/* 0xba */ { NULL, NULL, 0 },
-/* 0xbb */ { NULL, NULL, 0 },
-/* 0xbc */ { NULL, NULL, 0 },
-/* 0xbd */ { NULL, NULL, 0 },
-/* 0xbe */ { NULL, NULL, 0 },
-/* 0xbf */ { NULL, NULL, 0 },
-/* 0xc0 */ { "SMBsplopen",reply_printopen,AS_USER },
-/* 0xc1 */ { "SMBsplwr",reply_printwrite,AS_USER},
-/* 0xc2 */ { "SMBsplclose",reply_printclose,AS_USER},
-/* 0xc3 */ { "SMBsplretq",reply_printqueue,AS_USER},
-/* 0xc4 */ { NULL, NULL, 0 },
-/* 0xc5 */ { NULL, NULL, 0 },
-/* 0xc6 */ { NULL, NULL, 0 },
-/* 0xc7 */ { NULL, NULL, 0 },
-/* 0xc8 */ { NULL, NULL, 0 },
-/* 0xc9 */ { NULL, NULL, 0 },
-/* 0xca */ { NULL, NULL, 0 },
-/* 0xcb */ { NULL, NULL, 0 },
-/* 0xcc */ { NULL, NULL, 0 },
-/* 0xcd */ { NULL, NULL, 0 },
-/* 0xce */ { NULL, NULL, 0 },
-/* 0xcf */ { NULL, NULL, 0 },
-/* 0xd0 */ { "SMBsends",reply_sends,0},
-/* 0xd1 */ { "SMBsendb",NULL,0},
-/* 0xd2 */ { "SMBfwdname",NULL,0},
-/* 0xd3 */ { "SMBcancelf",NULL,0},
-/* 0xd4 */ { "SMBgetmac",NULL,0},
-/* 0xd5 */ { "SMBsendstrt",reply_sendstrt,0},
-/* 0xd6 */ { "SMBsendend",reply_sendend,0},
-/* 0xd7 */ { "SMBsendtxt",reply_sendtxt,0},
-/* 0xd8 */ { NULL, NULL, 0 },
-/* 0xd9 */ { NULL, NULL, 0 },
-/* 0xda */ { NULL, NULL, 0 },
-/* 0xdb */ { NULL, NULL, 0 },
-/* 0xdc */ { NULL, NULL, 0 },
-/* 0xdd */ { NULL, NULL, 0 },
-/* 0xde */ { NULL, NULL, 0 },
-/* 0xdf */ { NULL, NULL, 0 },
-/* 0xe0 */ { NULL, NULL, 0 },
-/* 0xe1 */ { NULL, NULL, 0 },
-/* 0xe2 */ { NULL, NULL, 0 },
-/* 0xe3 */ { NULL, NULL, 0 },
-/* 0xe4 */ { NULL, NULL, 0 },
-/* 0xe5 */ { NULL, NULL, 0 },
-/* 0xe6 */ { NULL, NULL, 0 },
-/* 0xe7 */ { NULL, NULL, 0 },
-/* 0xe8 */ { NULL, NULL, 0 },
-/* 0xe9 */ { NULL, NULL, 0 },
-/* 0xea */ { NULL, NULL, 0 },
-/* 0xeb */ { NULL, NULL, 0 },
-/* 0xec */ { NULL, NULL, 0 },
-/* 0xed */ { NULL, NULL, 0 },
-/* 0xee */ { NULL, NULL, 0 },
-/* 0xef */ { NULL, NULL, 0 },
-/* 0xf0 */ { NULL, NULL, 0 },
-/* 0xf1 */ { NULL, NULL, 0 },
-/* 0xf2 */ { NULL, NULL, 0 },
-/* 0xf3 */ { NULL, NULL, 0 },
-/* 0xf4 */ { NULL, NULL, 0 },
-/* 0xf5 */ { NULL, NULL, 0 },
-/* 0xf6 */ { NULL, NULL, 0 },
-/* 0xf7 */ { NULL, NULL, 0 },
-/* 0xf8 */ { NULL, NULL, 0 },
-/* 0xf9 */ { NULL, NULL, 0 },
-/* 0xfa */ { NULL, NULL, 0 },
-/* 0xfb */ { NULL, NULL, 0 },
-/* 0xfc */ { NULL, NULL, 0 },
-/* 0xfd */ { NULL, NULL, 0 },
-/* 0xfe */ { NULL, NULL, 0 },
-/* 0xff */ { NULL, NULL, 0 }
-};
-
-/****************************************************************************
-return a string containing the function name of a SMB command
-****************************************************************************/
-static const char *smb_fn_name(uint8_t type)
-{
- const char *unknown_name = "SMBunknown";
-
- if (smb_messages[type].name == NULL)
- return unknown_name;
-
- return smb_messages[type].name;
-}
-
-
-/****************************************************************************
- Do a switch on the message type and call the specific reply function for this
-message. Unlike earlier versions of Samba the reply functions are responsible
-for sending the reply themselves, rather than returning a size to this function
-The reply functions may also choose to delay the processing by pushing the message
-onto the message queue
-****************************************************************************/
-static void switch_message(int type, struct smbsrv_request *req)
-{
- int flags;
- struct smbsrv_connection *smb_conn = req->smb_conn;
- uint16_t session_tag;
- NTSTATUS status;
-
- type &= 0xff;
-
- errno = 0;
-
- if (smb_messages[type].fn == NULL) {
- DEBUG(0,("Unknown message type %d!\n",type));
- reply_unknown(req);
- return;
- }
-
- flags = smb_messages[type].flags;
-
- req->tcon = smbsrv_tcon_find(smb_conn, SVAL(req->in.hdr,HDR_TID));
-
- if (req->session == NULL) {
- /* setup the user context for this request if it
- hasn't already been initialised (to cope with SMB
- chaining) */
-
- /* In share mode security we must ignore the vuid. */
- if (smb_conn->config.security == SEC_SHARE) {
- session_tag = UID_FIELD_INVALID;
- } else {
- session_tag = SVAL(req->in.hdr,HDR_UID);
- }
-
- req->session = smbsrv_session_find(req->smb_conn, session_tag);
- if (req->session) {
- req->session->vuid = session_tag;
- }
- } else {
- session_tag = req->session->vuid;
- }
-
- DEBUG(3,("switch message %s (task_id %d)\n",smb_fn_name(type), req->smb_conn->connection->server_id));
-
- /* this must be called before we do any reply */
- if (flags & SIGNING_NO_REPLY) {
- req_signing_no_reply(req);
- }
-
- /* see if the vuid is valid */
- if ((flags & AS_USER) && !req->session) {
- /* amazingly, the error code depends on the command */
- switch (type) {
- case SMBntcreateX:
- case SMBntcancel:
- status = NT_STATUS_DOS(ERRSRV, ERRbaduid);
- break;
- default:
- status = NT_STATUS_INVALID_HANDLE;
- break;
- }
- /*
- * TODO:
- * don't know how to handle smb signing for this case
- * so just skip the reply
- */
- if ((flags & SIGNING_NO_REPLY) &&
- (req->smb_conn->signing.signing_state != SMB_SIGNING_ENGINE_OFF)) {
- DEBUG(1,("SKIP ERROR REPLY: %s %s because of unknown smb signing case\n",
- smb_fn_name(type), nt_errstr(status)));
- req_destroy(req);
- return;
- }
- req_reply_error(req, status);
- return;
- }
-
- /* does this protocol need a valid tree connection? */
- if ((flags & AS_USER) && !req->tcon) {
- /* amazingly, the error code depends on the command */
- switch (type) {
- case SMBntcreateX:
- case SMBntcancel:
- status = NT_STATUS_DOS(ERRSRV, ERRinvnid);
- break;
- default:
- status = NT_STATUS_INVALID_HANDLE;
- break;
- }
- /*
- * TODO:
- * don't know how to handle smb signing for this case
- * so just skip the reply
- */
- if ((flags & SIGNING_NO_REPLY) &&
- (req->smb_conn->signing.signing_state != SMB_SIGNING_ENGINE_OFF)) {
- DEBUG(1,("SKIP ERROR REPLY: %s %s because of unknown smb signing case\n",
- smb_fn_name(type), nt_errstr(status)));
- req_destroy(req);
- return;
- }
- req_reply_error(req, status);
- return;
- }
-
- smb_messages[type].fn(req);
-}
-
-/*
- we call this when first first part of a possibly chained request has been completed
- and we need to call the 2nd part, if any
-*/
-void chain_reply(struct smbsrv_request *req)
-{
- uint16_t chain_cmd, chain_offset;
- uint8_t *vwv, *data;
- uint16_t wct;
- uint16_t data_size;
-
- if (req->in.wct < 2 || req->out.wct < 2) {
- req_reply_dos_error(req, ERRSRV, ERRerror);
- return;
- }
-
- chain_cmd = CVAL(req->in.vwv, VWV(0));
- chain_offset = SVAL(req->in.vwv, VWV(1));
-
- if (chain_cmd == SMB_CHAIN_NONE) {
- /* end of chain */
- SSVAL(req->out.vwv, VWV(0), SMB_CHAIN_NONE);
- SSVAL(req->out.vwv, VWV(1), 0);
- req_send_reply(req);
- return;
- }
-
- if (chain_offset + req->in.hdr >= req->in.buffer + req->in.size) {
- goto error;
- }
-
- wct = CVAL(req->in.hdr, chain_offset);
- vwv = req->in.hdr + chain_offset + 1;
-
- if (vwv + VWV(wct) + 2 > req->in.buffer + req->in.size) {
- goto error;
- }
-
- data_size = SVAL(vwv, VWV(wct));
- data = vwv + VWV(wct) + 2;
-
- if (data + data_size > req->in.buffer + req->in.size) {
- goto error;
- }
-
- /* all seems legit */
- req->in.vwv = vwv;
- req->in.wct = wct;
- req->in.data = data;
- req->in.data_size = data_size;
- req->in.ptr = data;
-
- req->chain_count++;
-
- SSVAL(req->out.vwv, VWV(0), chain_cmd);
- SSVAL(req->out.vwv, VWV(1), req->out.size - NBT_HDR_SIZE);
-
- /* the current request in the chain might have used an async reply,
- but that doesn't mean the next element needs to */
- ZERO_STRUCTP(req->async_states);
-
- switch_message(chain_cmd, req);
- return;
-
-error:
- SSVAL(req->out.vwv, VWV(0), SMB_CHAIN_NONE);
- SSVAL(req->out.vwv, VWV(1), 0);
- req_reply_dos_error(req, ERRSRV, ERRerror);
-}
-
-
/*
close the socket and shutdown a server_context
*/
@@ -715,7 +110,7 @@ static void smbsrv_accept(struct stream_connection *conn)
}
packet_set_private(smb_conn->packet, smb_conn);
packet_set_socket(smb_conn->packet, conn->socket);
- packet_set_callback(smb_conn->packet, receive_smb_request);
+ packet_set_callback(smb_conn->packet, smbsrv_recv_smb_request);
packet_set_full_request(smb_conn->packet, packet_full_request_nbt);
packet_set_error_handler(smb_conn->packet, smbsrv_recv_error);
packet_set_event_context(smb_conn->packet, conn->event.ctx);