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/*
Unix SMB / CIFS implementation .
SMB2 client negprot handling
Copyright ( C ) Andrew Tridgell 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
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the Free Software Foundation ; either version 3 of the License , or
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( 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
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along with this program . If not , see < http : //www.gnu.org/licenses/>.
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*/
# include "includes.h"
# include "libcli/raw/libcliraw.h"
# include "libcli/smb2/smb2.h"
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# include "libcli/smb2/smb2_calls.h"
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/*
send a negprot request
*/
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struct smb2_request * smb2_negprot_send ( struct smb2_transport * transport ,
struct smb2_negprot * io )
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{
struct smb2_request * req ;
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req = smb2_request_init ( transport , SMB2_OP_NEGPROT , 0x26 , false , 0 ) ;
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if ( req = = NULL ) return NULL ;
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/* this seems to be a bug, they use 0x24 but the length is 0x26 */
SSVAL ( req - > out . body , 0x00 , 0x24 ) ;
SSVAL ( req - > out . body , 0x02 , io - > in . unknown1 ) ;
memcpy ( req - > out . body + 0x04 , io - > in . unknown2 , 32 ) ;
SSVAL ( req - > out . body , 0x24 , io - > in . unknown3 ) ;
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smb2_transport_send ( req ) ;
return req ;
}
/*
recv a negprot reply
*/
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NTSTATUS smb2_negprot_recv ( struct smb2_request * req , TALLOC_CTX * mem_ctx ,
struct smb2_negprot * io )
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{
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NTSTATUS status ;
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if ( ! smb2_request_receive ( req ) | |
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smb2_request_is_error ( req ) ) {
return smb2_request_destroy ( req ) ;
}
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SMB2_CHECK_PACKET_RECV ( req , 0x40 , true ) ;
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io - > out . _pad = SVAL ( req - > in . body , 0x02 ) ;
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io - > out . unknown2 = IVAL ( req - > in . body , 0x04 ) ;
memcpy ( io - > out . sessid , req - > in . body + 0x08 , 16 ) ;
io - > out . unknown3 = IVAL ( req - > in . body , 0x18 ) ;
io - > out . unknown4 = SVAL ( req - > in . body , 0x1C ) ;
io - > out . unknown5 = IVAL ( req - > in . body , 0x1E ) ;
io - > out . unknown6 = IVAL ( req - > in . body , 0x22 ) ;
io - > out . unknown7 = SVAL ( req - > in . body , 0x26 ) ;
io - > out . current_time = smbcli_pull_nttime ( req - > in . body , 0x28 ) ;
io - > out . boot_time = smbcli_pull_nttime ( req - > in . body , 0x30 ) ;
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status = smb2_pull_o16s16_blob ( & req - > in , mem_ctx , req - > in . body + 0x38 , & io - > out . secblob ) ;
if ( ! NT_STATUS_IS_OK ( status ) ) {
smb2_request_destroy ( req ) ;
return status ;
}
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io - > out . unknown9 = IVAL ( req - > in . body , 0x3C ) ;
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return smb2_request_destroy ( req ) ;
}
/*
sync negprot request
*/
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NTSTATUS smb2_negprot ( struct smb2_transport * transport ,
TALLOC_CTX * mem_ctx , struct smb2_negprot * io )
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{
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struct smb2_request * req = smb2_negprot_send ( transport , io ) ;
return smb2_negprot_recv ( req , mem_ctx , io ) ;
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}