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Added support for raw SMB over TCP

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This complements the functionality in the updated SMB abstraction layer. Also added a little documentation for some of the various undocumented magic numbers and fields of the SMB commands set up in this implementation. There is more to come, eventually.
This commit is contained in:
Olaf Barthel
2016-02-21 13:45:51 +01:00
parent d00debee61
commit 99fe89d475
1 changed files with 32 additions and 28 deletions
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source_code/proc.c
+32 -28
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@@ -1,5 +1,5 @@
/*
* $Id: proc.c,v 1.9 2009-07-22 07:52:59 obarthel Exp $
* $Id: proc.c,v 1.9 2009/07/22 07:52:59 obarthel Exp $
*
* :ts=8
*
@@ -564,6 +564,7 @@ smb_setup_header (struct smb_server *server, byte command, word wct, word bcc)
p += 5;
memset (p, '\0', 19);
p += 19;
memset (p, '\0', 8); /* zap the signature */
p += 8;
WSET (buf, smb_tid, server->tid);
@@ -573,8 +574,8 @@ smb_setup_header (struct smb_server *server, byte command, word wct, word bcc)
if (server->protocol > PROTOCOL_CORE)
{
BSET (buf, smb_flg, 0x8);
WSET (buf, smb_flg2, 0x3);
BSET (buf, smb_flg, 0x8); /* path names are caseless */
WSET (buf, smb_flg2, 0x3); /* extended attributes supported, long names supported */
}
(*p++) = wct; /* wct */
@@ -2137,7 +2138,7 @@ smb_proc_reconnect (struct smb_server *server)
if (server->max_recv <= 0)
server->max_recv = given_max_xmit > 8000 ? given_max_xmit : 8000;
if ((result = smb_connect (server)) < 0)
if ((result = smb_connect (server)) < 0) /* this is really a plain connect() call */
{
LOG (("smb_proc_reconnect: could not smb_connect\n"));
goto fail;
@@ -2162,38 +2163,41 @@ smb_proc_reconnect (struct smb_server *server)
server->max_xmit = max_xmit;
/* Start with an RFC1002 session request packet. */
p = packet + 4;
p = smb_name_mangle (p, server->mount_data.server_name);
p = smb_name_mangle (p, server->mount_data.client_name);
smb_encode_smb_length (packet, (byte *) p - (byte *) (packet));
packet[0] = 0x81; /* SESSION REQUEST */
if ((result = smb_request (server)) < 0)
if(!server->raw_smb)
{
LOG (("smb_proc_connect: Failed to send SESSION REQUEST.\n"));
goto fail;
}
/* Start with an RFC1002 session request packet. */
p = packet + 4;
if (packet[0] != 0x82)
{
LOG (("smb_proc_connect: Did not receive positive response (err = %lx)\n",packet[0]));
p = smb_name_mangle (p, server->mount_data.server_name);
p = smb_name_mangle (p, server->mount_data.client_name);
#if DEBUG
smb_encode_smb_length (packet, (byte *) p - (byte *) (packet));
packet[0] = 0x81; /* SESSION REQUEST */
if ((result = smb_request (server)) < 0)
{
smb_dump_packet (packet);
LOG (("smb_proc_connect: Failed to send SESSION REQUEST.\n"));
goto fail;
}
#endif /* DEBUG */
result = -EIO;
goto fail;
if (packet[0] != 0x82)
{
LOG (("smb_proc_connect: Did not receive positive response (err = %lx)\n",packet[0]));
#if DEBUG
{
smb_dump_packet (packet);
}
#endif /* DEBUG */
result = -EIO;
goto fail;
}
LOG (("smb_proc_connect: Passed SESSION REQUEST.\n"));
}
LOG (("smb_proc_connect: Passed SESSION REQUEST.\n"));
/* Now we are ready to send a SMB Negotiate Protocol packet. */
memset (packet, 0, SMB_HEADER_LEN);