/* * Unix SMB/Netbios implementation. * Version 1.9. * RPC Pipe client / server routines * Copyright (C) Andrew Tridgell 1992-1997, * Copyright (C) Luke Kenneth Casson Leighton 1996-1997, * Copyright (C) Paul Ashton 1997. * Copyright (C) Jeremy Allison 1999. * * 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" extern int DEBUGLEVEL; /******************************************************************* interface/version dce/rpc pipe identification ********************************************************************/ #define TRANS_SYNT_V2 \ { \ { \ 0x8a885d04, 0x1ceb, 0x11c9, \ { 0x9f, 0xe8, 0x08, 0x00, \ 0x2b, 0x10, 0x48, 0x60 } \ }, 0x02 \ } #define SYNT_NETLOGON_V2 \ { \ { \ 0x8a885d04, 0x1ceb, 0x11c9, \ { 0x9f, 0xe8, 0x08, 0x00, \ 0x2b, 0x10, 0x48, 0x60 } \ }, 0x02 \ } #define SYNT_WKSSVC_V1 \ { \ { \ 0x6bffd098, 0xa112, 0x3610, \ { 0x98, 0x33, 0x46, 0xc3, \ 0xf8, 0x7e, 0x34, 0x5a } \ }, 0x01 \ } #define SYNT_SRVSVC_V3 \ { \ { \ 0x4b324fc8, 0x1670, 0x01d3, \ { 0x12, 0x78, 0x5a, 0x47, \ 0xbf, 0x6e, 0xe1, 0x88 } \ }, 0x03 \ } #define SYNT_LSARPC_V0 \ { \ { \ 0x12345778, 0x1234, 0xabcd, \ { 0xef, 0x00, 0x01, 0x23, \ 0x45, 0x67, 0x89, 0xab } \ }, 0x00 \ } #define SYNT_SAMR_V1 \ { \ { \ 0x12345778, 0x1234, 0xabcd, \ { 0xef, 0x00, 0x01, 0x23, \ 0x45, 0x67, 0x89, 0xac } \ }, 0x01 \ } #define SYNT_NETLOGON_V1 \ { \ { \ 0x12345678, 0x1234, 0xabcd, \ { 0xef, 0x00, 0x01, 0x23, \ 0x45, 0x67, 0xcf, 0xfb } \ }, 0x01 \ } #define SYNT_WINREG_V1 \ { \ { \ 0x338cd001, 0x2244, 0x31f1, \ { 0xaa, 0xaa, 0x90, 0x00, \ 0x38, 0x00, 0x10, 0x03 } \ }, 0x01 \ } #define SYNT_SPOOLSS_V1 \ { \ { \ 0x12345678, 0x1234, 0xabcb, \ { 0xef, 0x00, 0x01, 0x23, \ 0x45, 0x67, 0x89, 0xab } \ }, 0x01 \ } #define SYNT_NONE_V0 \ { \ { \ 0x0, 0x0, 0x0, \ { 0x00, 0x00, 0x00, 0x00, \ 0x00, 0x00, 0x00, 0x00 } \ }, 0x00 \ } struct pipe_id_info pipe_names [] = { /* client pipe , abstract syntax , server pipe , transfer syntax */ { PIPE_LSARPC , SYNT_LSARPC_V0 , PIPE_LSASS , TRANS_SYNT_V2 }, { PIPE_SAMR , SYNT_SAMR_V1 , PIPE_LSASS , TRANS_SYNT_V2 }, { PIPE_NETLOGON, SYNT_NETLOGON_V1, PIPE_LSASS , TRANS_SYNT_V2 }, { PIPE_SRVSVC , SYNT_SRVSVC_V3 , PIPE_NTSVCS , TRANS_SYNT_V2 }, { PIPE_WKSSVC , SYNT_WKSSVC_V1 , PIPE_NTSVCS , TRANS_SYNT_V2 }, { PIPE_WINREG , SYNT_WINREG_V1 , PIPE_WINREG , TRANS_SYNT_V2 }, { PIPE_SPOOLSS , SYNT_SPOOLSS_V1 , PIPE_SPOOLSS , TRANS_SYNT_V2 }, { NULL , SYNT_NONE_V0 , NULL , SYNT_NONE_V0 } }; /******************************************************************* Inits an RPC_HDR structure. ********************************************************************/ void init_rpc_hdr(RPC_HDR *hdr, enum RPC_PKT_TYPE pkt_type, uint8 flags, uint32 call_id, int data_len, int auth_len) { hdr->major = 5; /* RPC version 5 */ hdr->minor = 0; /* minor version 0 */ hdr->pkt_type = pkt_type; /* RPC packet type */ hdr->flags = flags; /* dce/rpc flags */ hdr->pack_type[0] = 0x10; /* little-endian data representation */ hdr->pack_type[1] = 0; /* packed data representation */ hdr->pack_type[2] = 0; /* packed data representation */ hdr->pack_type[3] = 0; /* packed data representation */ hdr->frag_len = data_len; /* fragment length, fill in later */ hdr->auth_len = auth_len; /* authentication length */ hdr->call_id = call_id; /* call identifier - match incoming RPC */ } /******************************************************************* Reads or writes an RPC_HDR structure. ********************************************************************/ BOOL smb_io_rpc_hdr(char *desc, RPC_HDR *rpc, prs_struct *ps, int depth) { if (rpc == NULL) return False; prs_debug(ps, depth, desc, "smb_io_rpc_hdr"); depth++; if(!prs_uint8 ("major ", ps, depth, &rpc->major)) return False; if(!prs_uint8 ("minor ", ps, depth, &rpc->minor)) return False; if(!prs_uint8 ("pkt_type ", ps, depth, &rpc->pkt_type)) return False; if(!prs_uint8 ("flags ", ps, depth, &rpc->flags)) return False; if(!prs_uint8("pack_type0", ps, depth, &rpc->pack_type[0])) return False; if(!prs_uint8("pack_type1", ps, depth, &rpc->pack_type[1])) return False; if(!prs_uint8("pack_type2", ps, depth, &rpc->pack_type[2])) return False; if(!prs_uint8("pack_type3", ps, depth, &rpc->pack_type[3])) return False; /* * If reading and pack_type[0] == 0 then the data is in big-endian * format. Set the flag in the prs_struct to specify reverse-endainness. */ if (ps->io && rpc->pack_type[0] == 0) { DEBUG(10,("smb_io_rpc_hdr: PDU data format is big-endian. Setting flag.\n")); prs_set_bigendian_data(ps); } if(!prs_uint16("frag_len ", ps, depth, &rpc->frag_len)) return False; if(!prs_uint16("auth_len ", ps, depth, &rpc->auth_len)) return False; if(!prs_uint32("call_id ", ps, depth, &rpc->call_id)) return False; return True; } /******************************************************************* Reads or writes an RPC_IFACE structure. ********************************************************************/ static BOOL smb_io_rpc_iface(char *desc, RPC_IFACE *ifc, prs_struct *ps, int depth) { if (ifc == NULL) return False; prs_debug(ps, depth, desc, "smb_io_rpc_iface"); depth++; if(!prs_align(ps)) return False; if(!prs_uint32 ("data ", ps, depth, &ifc->uuid.time_low)) return False; if(!prs_uint16 ("data ", ps, depth, &ifc->uuid.time_mid)) return False; if(!prs_uint16 ("data ", ps, depth, &ifc->uuid.time_hi_and_version)) return False; if(!prs_uint8s (False, "data ", ps, depth, ifc->uuid.remaining, sizeof(ifc->uuid.remaining))) return False; if(!prs_uint32 ( "version", ps, depth, &(ifc->version))) return False; return True; } /******************************************************************* Inits an RPC_ADDR_STR structure. ********************************************************************/ static void init_rpc_addr_str(RPC_ADDR_STR *str, char *name) { str->len = strlen(name) + 1; fstrcpy(str->str, name); } /******************************************************************* Reads or writes an RPC_ADDR_STR structure. ********************************************************************/ static BOOL smb_io_rpc_addr_str(char *desc, RPC_ADDR_STR *str, prs_struct *ps, int depth) { if (str == NULL) return False; prs_debug(ps, depth, desc, "smb_io_rpc_addr_str"); depth++; if(!prs_align(ps)) return False; if(!prs_uint16 ( "len", ps, depth, &str->len)) return False; if(!prs_uint8s (True, "str", ps, depth, (uchar*)str->str, MIN(str->len, sizeof(str->str)) )) return False; return True; } /******************************************************************* Inits an RPC_HDR_BBA structure. ********************************************************************/ static void init_rpc_hdr_bba(RPC_HDR_BBA *bba, uint16 max_tsize, uint16 max_rsize, uint32 assoc_gid) { bba->max_tsize = max_tsize; /* maximum transmission fragment size (0x1630) */ bba->max_rsize = max_rsize; /* max receive fragment size (0x1630) */ bba->assoc_gid = assoc_gid; /* associated group id (0x0) */ } /******************************************************************* Reads or writes an RPC_HDR_BBA structure. ********************************************************************/ static BOOL smb_io_rpc_hdr_bba(char *desc, RPC_HDR_BBA *rpc, prs_struct *ps, int depth) { if (rpc == NULL) return False; prs_debug(ps, depth, desc, "smb_io_rpc_hdr_bba"); depth++; if(!prs_uint16("max_tsize", ps, depth, &rpc->max_tsize)) return False; if(!prs_uint16("max_rsize", ps, depth, &rpc->max_rsize)) return False; if(!prs_uint32("assoc_gid", ps, depth, &rpc->assoc_gid)) return False; return True; } /******************************************************************* Inits an RPC_HDR_RB structure. ********************************************************************/ void init_rpc_hdr_rb(RPC_HDR_RB *rpc, uint16 max_tsize, uint16 max_rsize, uint32 assoc_gid, uint32 num_elements, uint16 context_id, uint8 num_syntaxes, RPC_IFACE *abstract, RPC_IFACE *transfer) { init_rpc_hdr_bba(&rpc->bba, max_tsize, max_rsize, assoc_gid); rpc->num_elements = num_elements ; /* the number of elements (0x1) */ rpc->context_id = context_id ; /* presentation context identifier (0x0) */ rpc->num_syntaxes = num_syntaxes ; /* the number of syntaxes (has always been 1?)(0x1) */ /* num and vers. of interface client is using */ rpc->abstract = *abstract; /* num and vers. of interface to use for replies */ rpc->transfer = *transfer; } /******************************************************************* Reads or writes an RPC_HDR_RB structure. ********************************************************************/ BOOL smb_io_rpc_hdr_rb(char *desc, RPC_HDR_RB *rpc, prs_struct *ps, int depth) { if (rpc == NULL) return False; prs_debug(ps, depth, desc, "smb_io_rpc_hdr_rb"); depth++; if(!smb_io_rpc_hdr_bba("", &rpc->bba, ps, depth)) return False; if(!prs_uint32("num_elements", ps, depth, &rpc->num_elements)) return False; if(!prs_uint16("context_id ", ps, depth, &rpc->context_id )) return False; if(!prs_uint8 ("num_syntaxes", ps, depth, &rpc->num_syntaxes)) return False; if(!smb_io_rpc_iface("", &rpc->abstract, ps, depth)) return False; if(!smb_io_rpc_iface("", &rpc->transfer, ps, depth)) return False; return True; } /******************************************************************* Inits an RPC_RESULTS structure. lkclXXXX only one reason at the moment! ********************************************************************/ static void init_rpc_results(RPC_RESULTS *res, uint8 num_results, uint16 result, uint16 reason) { res->num_results = num_results; /* the number of results (0x01) */ res->result = result ; /* result (0x00 = accept) */ res->reason = reason ; /* reason (0x00 = no reason specified) */ } /******************************************************************* Reads or writes an RPC_RESULTS structure. lkclXXXX only one reason at the moment! ********************************************************************/ static BOOL smb_io_rpc_results(char *desc, RPC_RESULTS *res, prs_struct *ps, int depth) { if (res == NULL) return False; prs_debug(ps, depth, desc, "smb_io_rpc_results"); depth++; if(!prs_align(ps)) return False; if(!prs_uint8 ("num_results", ps, depth, &res->num_results)) return False; if(!prs_align(ps)) return False; if(!prs_uint16("result ", ps, depth, &res->result)) return False; if(!prs_uint16("reason ", ps, depth, &res->reason)) return False; return True; } /******************************************************************* Init an RPC_HDR_BA structure. lkclXXXX only one reason at the moment! ********************************************************************/ void init_rpc_hdr_ba(RPC_HDR_BA *rpc, uint16 max_tsize, uint16 max_rsize, uint32 assoc_gid, char *pipe_addr, uint8 num_results, uint16 result, uint16 reason, RPC_IFACE *transfer) { init_rpc_hdr_bba (&rpc->bba, max_tsize, max_rsize, assoc_gid); init_rpc_addr_str(&rpc->addr, pipe_addr); init_rpc_results (&rpc->res, num_results, result, reason); /* the transfer syntax from the request */ memcpy(&rpc->transfer, transfer, sizeof(rpc->transfer)); } /******************************************************************* Reads or writes an RPC_HDR_BA structure. ********************************************************************/ BOOL smb_io_rpc_hdr_ba(char *desc, RPC_HDR_BA *rpc, prs_struct *ps, int depth) { if (rpc == NULL) return False; prs_debug(ps, depth, desc, "smb_io_rpc_hdr_ba"); depth++; if(!smb_io_rpc_hdr_bba("", &rpc->bba, ps, depth)) return False; if(!smb_io_rpc_addr_str("", &rpc->addr, ps, depth)) return False; if(!smb_io_rpc_results("", &rpc->res, ps, depth)) return False; if(!smb_io_rpc_iface("", &rpc->transfer, ps, depth)) return False; return True; } /******************************************************************* Init an RPC_HDR_REQ structure. ********************************************************************/ void init_rpc_hdr_req(RPC_HDR_REQ *hdr, uint32 alloc_hint, uint16 opnum) { hdr->alloc_hint = alloc_hint; /* allocation hint */ hdr->context_id = 0; /* presentation context identifier */ hdr->opnum = opnum; /* opnum */ } /******************************************************************* Reads or writes an RPC_HDR_REQ structure. ********************************************************************/ BOOL smb_io_rpc_hdr_req(char *desc, RPC_HDR_REQ *rpc, prs_struct *ps, int depth) { if (rpc == NULL) return False; prs_debug(ps, depth, desc, "smb_io_rpc_hdr_req"); depth++; if(!prs_uint32("alloc_hint", ps, depth, &rpc->alloc_hint)) return False; if(!prs_uint16("context_id", ps, depth, &rpc->context_id)) return False; if(!prs_uint16("opnum ", ps, depth, &rpc->opnum)) return False; return True; } /******************************************************************* Reads or writes an RPC_HDR_RESP structure. ********************************************************************/ BOOL smb_io_rpc_hdr_resp(char *desc, RPC_HDR_RESP *rpc, prs_struct *ps, int depth) { if (rpc == NULL) return False; prs_debug(ps, depth, desc, "smb_io_rpc_hdr_resp"); depth++; if(!prs_uint32("alloc_hint", ps, depth, &rpc->alloc_hint)) return False; if(!prs_uint16("context_id", ps, depth, &rpc->context_id)) return False; if(!prs_uint8 ("cancel_ct ", ps, depth, &rpc->cancel_count)) return False; if(!prs_uint8 ("reserved ", ps, depth, &rpc->reserved)) return False; return True; } /******************************************************************* Reads or writes an RPC_HDR_FAULT structure. ********************************************************************/ BOOL smb_io_rpc_hdr_fault(char *desc, RPC_HDR_FAULT *rpc, prs_struct *ps, int depth) { if (rpc == NULL) return False; prs_debug(ps, depth, desc, "smb_io_rpc_hdr_fault"); depth++; if(!prs_uint32("status ", ps, depth, &rpc->status)) return False; if(!prs_uint32("reserved", ps, depth, &rpc->reserved)) return False; return True; } /******************************************************************* Init an RPC_HDR_AUTHA structure. ********************************************************************/ void init_rpc_hdr_autha(RPC_HDR_AUTHA *rai, uint16 max_tsize, uint16 max_rsize, uint8 auth_type, uint8 auth_level, uint8 stub_type_len) { rai->max_tsize = max_tsize; /* maximum transmission fragment size (0x1630) */ rai->max_rsize = max_rsize; /* max receive fragment size (0x1630) */ rai->auth_type = auth_type; /* nt lm ssp 0x0a */ rai->auth_level = auth_level; /* 0x06 */ rai->stub_type_len = stub_type_len; /* 0x00 */ rai->padding = 0; /* padding 0x00 */ rai->unknown = 0x0014a0c0; /* non-zero pointer to something */ } /******************************************************************* Reads or writes an RPC_HDR_AUTHA structure. ********************************************************************/ BOOL smb_io_rpc_hdr_autha(char *desc, RPC_HDR_AUTHA *rai, prs_struct *ps, int depth) { if (rai == NULL) return False; prs_debug(ps, depth, desc, "smb_io_rpc_hdr_autha"); depth++; if(!prs_uint16("max_tsize ", ps, depth, &rai->max_tsize)) return False; if(!prs_uint16("max_rsize ", ps, depth, &rai->max_rsize)) return False; if(!prs_uint8 ("auth_type ", ps, depth, &rai->auth_type)) /* 0x0a nt lm ssp */ return False; if(!prs_uint8 ("auth_level ", ps, depth, &rai->auth_level)) /* 0x06 */ return False; if(!prs_uint8 ("stub_type_len", ps, depth, &rai->stub_type_len)) return False; if(!prs_uint8 ("padding ", ps, depth, &rai->padding)) return False; if(!prs_uint32("unknown ", ps, depth, &rai->unknown)) /* 0x0014a0c0 */ return False; return True; } /******************************************************************* Checks an RPC_HDR_AUTH structure. ********************************************************************/ BOOL rpc_hdr_auth_chk(RPC_HDR_AUTH *rai) { return (rai->auth_type == NTLMSSP_AUTH_TYPE && rai->auth_level == NTLMSSP_AUTH_LEVEL); } /******************************************************************* Inits an RPC_HDR_AUTH structure. ********************************************************************/ void init_rpc_hdr_auth(RPC_HDR_AUTH *rai, uint8 auth_type, uint8 auth_level, uint8 stub_type_len, uint32 ptr) { rai->auth_type = auth_type; /* nt lm ssp 0x0a */ rai->auth_level = auth_level; /* 0x06 */ rai->stub_type_len = stub_type_len; /* 0x00 */ rai->padding = 0; /* padding 0x00 */ rai->unknown = ptr; /* non-zero pointer to something */ } /******************************************************************* Reads or writes an RPC_HDR_AUTH structure. ********************************************************************/ BOOL smb_io_rpc_hdr_auth(char *desc, RPC_HDR_AUTH *rai, prs_struct *ps, int depth) { if (rai == NULL) return False; prs_debug(ps, depth, desc, "smb_io_rpc_hdr_auth"); depth++; if(!prs_align(ps)) return False; if(!prs_uint8 ("auth_type ", ps, depth, &rai->auth_type)) /* 0x0a nt lm ssp */ return False; if(!prs_uint8 ("auth_level ", ps, depth, &rai->auth_level)) /* 0x06 */ return False; if(!prs_uint8 ("stub_type_len", ps, depth, &rai->stub_type_len)) return False; if(!prs_uint8 ("padding ", ps, depth, &rai->padding)) return False; if(!prs_uint32("unknown ", ps, depth, &rai->unknown)) /* 0x0014a0c0 */ return False; return True; } /******************************************************************* Checks an RPC_AUTH_VERIFIER structure. ********************************************************************/ BOOL rpc_auth_verifier_chk(RPC_AUTH_VERIFIER *rav, char *signature, uint32 msg_type) { return (strequal(rav->signature, signature) && rav->msg_type == msg_type); } /******************************************************************* Inits an RPC_AUTH_VERIFIER structure. ********************************************************************/ void init_rpc_auth_verifier(RPC_AUTH_VERIFIER *rav, char *signature, uint32 msg_type) { fstrcpy(rav->signature, signature); /* "NTLMSSP" */ rav->msg_type = msg_type; /* NTLMSSP_MESSAGE_TYPE */ } /******************************************************************* Reads or writes an RPC_AUTH_VERIFIER structure. ********************************************************************/ BOOL smb_io_rpc_auth_verifier(char *desc, RPC_AUTH_VERIFIER *rav, prs_struct *ps, int depth) { if (rav == NULL) return False; prs_debug(ps, depth, desc, "smb_io_rpc_auth_verifier"); depth++; /* "NTLMSSP" */ if(!prs_string("signature", ps, depth, rav->signature, strlen("NTLMSSP"), sizeof(rav->signature))) return False; if(!prs_uint32("msg_type ", ps, depth, &rav->msg_type)) /* NTLMSSP_MESSAGE_TYPE */ return False; return True; } /******************************************************************* Inits an RPC_AUTH_NTLMSSP_NEG structure. ********************************************************************/ void init_rpc_auth_ntlmssp_neg(RPC_AUTH_NTLMSSP_NEG *neg, uint32 neg_flgs, fstring myname, fstring domain) { int len_myname = strlen(myname); int len_domain = strlen(domain); neg->neg_flgs = neg_flgs ; /* 0x00b2b3 */ init_str_hdr(&neg->hdr_domain, len_domain, len_domain, 0x20 + len_myname); init_str_hdr(&neg->hdr_myname, len_myname, len_myname, 0x20); fstrcpy(neg->myname, myname); fstrcpy(neg->domain, domain); } /******************************************************************* Reads or writes an RPC_AUTH_NTLMSSP_NEG structure. *** lkclXXXX HACK ALERT! *** ********************************************************************/ BOOL smb_io_rpc_auth_ntlmssp_neg(char *desc, RPC_AUTH_NTLMSSP_NEG *neg, prs_struct *ps, int depth) { if (neg == NULL) return False; prs_debug(ps, depth, desc, "smb_io_rpc_auth_ntlmssp_neg"); depth++; if(!prs_uint32("neg_flgs ", ps, depth, &neg->neg_flgs)) return False; if (ps->io) { uint32 old_offset; uint32 old_neg_flags = neg->neg_flgs; /* reading */ ZERO_STRUCTP(neg); neg->neg_flgs = old_neg_flags; if(!smb_io_strhdr("hdr_domain", &neg->hdr_domain, ps, depth)) return False; if(!smb_io_strhdr("hdr_myname", &neg->hdr_myname, ps, depth)) return False; old_offset = prs_offset(ps); /* lkclXXXX HACK! */ if(!prs_set_offset(ps, neg->hdr_myname.buffer + 0x50)) return False; if(!prs_uint8s(True, "myname", ps, depth, (uint8*)neg->myname, MIN(neg->hdr_myname.str_str_len, sizeof(neg->myname)))) return False; old_offset += neg->hdr_myname.str_str_len; /* lkclXXXX HACK! */ if(!prs_set_offset(ps, neg->hdr_domain.buffer + 0x50)) return False; if(!prs_uint8s(True, "domain", ps, depth, (uint8*)neg->domain, MIN(neg->hdr_domain.str_str_len, sizeof(neg->domain )))) return False; old_offset += neg->hdr_domain .str_str_len; if(!prs_set_offset(ps, old_offset)) return False; } else { /* writing */ if(!smb_io_strhdr("hdr_domain", &neg->hdr_domain, ps, depth)) return False; if(!smb_io_strhdr("hdr_myname", &neg->hdr_myname, ps, depth)) return False; if(!prs_uint8s(True, "myname", ps, depth, (uint8*)neg->myname, MIN(neg->hdr_myname.str_str_len, sizeof(neg->myname)))) return False; if(!prs_uint8s(True, "domain", ps, depth, (uint8*)neg->domain, MIN(neg->hdr_domain.str_str_len, sizeof(neg->domain )))) return False; } return True; } /******************************************************************* creates an RPC_AUTH_NTLMSSP_CHAL structure. ********************************************************************/ void init_rpc_auth_ntlmssp_chal(RPC_AUTH_NTLMSSP_CHAL *chl, uint32 neg_flags, uint8 challenge[8]) { chl->unknown_1 = 0x0; chl->unknown_2 = 0x00000028; chl->neg_flags = neg_flags; /* 0x0082b1 */ memcpy(chl->challenge, challenge, sizeof(chl->challenge)); memset((char *)chl->reserved , '\0', sizeof(chl->reserved)); } /******************************************************************* Reads or writes an RPC_AUTH_NTLMSSP_CHAL structure. ********************************************************************/ BOOL smb_io_rpc_auth_ntlmssp_chal(char *desc, RPC_AUTH_NTLMSSP_CHAL *chl, prs_struct *ps, int depth) { if (chl == NULL) return False; prs_debug(ps, depth, desc, "smb_io_rpc_auth_ntlmssp_chal"); depth++; if(!prs_uint32("unknown_1", ps, depth, &chl->unknown_1)) /* 0x0000 0000 */ return False; if(!prs_uint32("unknown_2", ps, depth, &chl->unknown_2)) /* 0x0000 b2b3 */ return False; if(!prs_uint32("neg_flags", ps, depth, &chl->neg_flags)) /* 0x0000 82b1 */ return False; if(!prs_uint8s (False, "challenge", ps, depth, chl->challenge, sizeof(chl->challenge))) return False; if(!prs_uint8s (False, "reserved ", ps, depth, chl->reserved , sizeof(chl->reserved ))) return False; return True; } /******************************************************************* Inits an RPC_AUTH_NTLMSSP_RESP structure. *** lkclXXXX FUDGE! HAVE TO MANUALLY SPECIFY OFFSET HERE (0x1c bytes) *** *** lkclXXXX the actual offset is at the start of the auth verifier *** ********************************************************************/ void init_rpc_auth_ntlmssp_resp(RPC_AUTH_NTLMSSP_RESP *rsp, uchar lm_resp[24], uchar nt_resp[24], char *domain, char *user, char *wks, uint32 neg_flags) { uint32 offset; int dom_len = strlen(domain); int wks_len = strlen(wks); int usr_len = strlen(user); int lm_len = (lm_resp != NULL) ? 24 : 0; int nt_len = (nt_resp != NULL) ? 24 : 0; DEBUG(5,("make_rpc_auth_ntlmssp_resp\n")); #ifdef DEBUG_PASSWORD DEBUG(100,("lm_resp\n")); dump_data(100, (char *)lm_resp, 24); DEBUG(100,("nt_resp\n")); dump_data(100, (char *)nt_resp, 24); #endif DEBUG(6,("dom: %s user: %s wks: %s neg_flgs: 0x%x\n", domain, user, wks, neg_flags)); offset = 0x40; if (IS_BITS_SET_ALL(neg_flags, NTLMSSP_NEGOTIATE_UNICODE)) { dom_len *= 2; wks_len *= 2; usr_len *= 2; } init_str_hdr(&rsp->hdr_domain, dom_len, dom_len, offset); offset += dom_len; init_str_hdr(&rsp->hdr_usr, usr_len, usr_len, offset); offset += usr_len; init_str_hdr(&rsp->hdr_wks, wks_len, wks_len, offset); offset += wks_len; init_str_hdr(&rsp->hdr_lm_resp, lm_len, lm_len, offset); offset += lm_len; init_str_hdr(&rsp->hdr_nt_resp, nt_len, nt_len, offset); offset += nt_len; init_str_hdr(&rsp->hdr_sess_key, 0, 0, offset); rsp->neg_flags = neg_flags; memcpy(rsp->lm_resp, lm_resp, 24); memcpy(rsp->nt_resp, nt_resp, 24); if (IS_BITS_SET_ALL(neg_flags, NTLMSSP_NEGOTIATE_UNICODE)) { dos_struni2(rsp->domain, domain, sizeof(rsp->domain)); dos_struni2(rsp->user, user, sizeof(rsp->user)); dos_struni2(rsp->wks, wks, sizeof(rsp->wks)); } else { fstrcpy(rsp->domain, domain); fstrcpy(rsp->user, user); fstrcpy(rsp->wks, wks); } rsp->sess_key[0] = 0; } /******************************************************************* Reads or writes an RPC_AUTH_NTLMSSP_RESP structure. *** lkclXXXX FUDGE! HAVE TO MANUALLY SPECIFY OFFSET HERE (0x1c bytes) *** *** lkclXXXX the actual offset is at the start of the auth verifier *** ********************************************************************/ BOOL smb_io_rpc_auth_ntlmssp_resp(char *desc, RPC_AUTH_NTLMSSP_RESP *rsp, prs_struct *ps, int depth) { if (rsp == NULL) return False; prs_debug(ps, depth, desc, "smb_io_rpc_auth_ntlmssp_resp"); depth++; if (ps->io) { uint32 old_offset; /* reading */ ZERO_STRUCTP(rsp); if(!smb_io_strhdr("hdr_lm_resp ", &rsp->hdr_lm_resp, ps, depth)) return False; if(!smb_io_strhdr("hdr_nt_resp ", &rsp->hdr_nt_resp, ps, depth)) return False; if(!smb_io_strhdr("hdr_domain ", &rsp->hdr_domain, ps, depth)) return False; if(!smb_io_strhdr("hdr_user ", &rsp->hdr_usr, ps, depth)) return False; if(!smb_io_strhdr("hdr_wks ", &rsp->hdr_wks, ps, depth)) return False; if(!smb_io_strhdr("hdr_sess_key", &rsp->hdr_sess_key, ps, depth)) return False; if(!prs_uint32("neg_flags", ps, depth, &rsp->neg_flags)) /* 0x0000 82b1 */ return False; old_offset = prs_offset(ps); if(!prs_set_offset(ps, rsp->hdr_domain.buffer + 0x1c)) return False; if(!prs_uint8s(True , "domain ", ps, depth, (uint8*)rsp->domain, MIN(rsp->hdr_domain.str_str_len, sizeof(rsp->domain)))) return False; old_offset += rsp->hdr_domain.str_str_len; if(!prs_set_offset(ps, rsp->hdr_usr.buffer + 0x1c)) return False; if(!prs_uint8s(True , "user ", ps, depth, (uint8*)rsp->user, MIN(rsp->hdr_usr.str_str_len, sizeof(rsp->user)))) return False; old_offset += rsp->hdr_usr.str_str_len; if(!prs_set_offset(ps, rsp->hdr_wks.buffer + 0x1c)) return False; if(!prs_uint8s(True, "wks ", ps, depth, (uint8*)rsp->wks, MIN(rsp->hdr_wks.str_str_len, sizeof(rsp->wks)))) return False; old_offset += rsp->hdr_wks.str_str_len; if(!prs_set_offset(ps, rsp->hdr_lm_resp.buffer + 0x1c)) return False; if(!prs_uint8s(False, "lm_resp ", ps, depth, (uint8*)rsp->lm_resp, MIN(rsp->hdr_lm_resp.str_str_len, sizeof(rsp->lm_resp )))) return False; old_offset += rsp->hdr_lm_resp.str_str_len; if(!prs_set_offset(ps, rsp->hdr_nt_resp.buffer + 0x1c)) return False; if(!prs_uint8s(False, "nt_resp ", ps, depth, (uint8*)rsp->nt_resp, MIN(rsp->hdr_nt_resp.str_str_len, sizeof(rsp->nt_resp )))) return False; old_offset += rsp->hdr_nt_resp.str_str_len; if (rsp->hdr_sess_key.str_str_len != 0) { if(!prs_set_offset(ps, rsp->hdr_sess_key.buffer + 0x1c)) return False; old_offset += rsp->hdr_sess_key.str_str_len; if(!prs_uint8s(False, "sess_key", ps, depth, (uint8*)rsp->sess_key, MIN(rsp->hdr_sess_key.str_str_len, sizeof(rsp->sess_key)))) return False; } if(!prs_set_offset(ps, old_offset)) return False; } else { /* writing */ if(!smb_io_strhdr("hdr_lm_resp ", &rsp->hdr_lm_resp, ps, depth)) return False; if(!smb_io_strhdr("hdr_nt_resp ", &rsp->hdr_nt_resp, ps, depth)) return False; if(!smb_io_strhdr("hdr_domain ", &rsp->hdr_domain, ps, depth)) return False; if(!smb_io_strhdr("hdr_user ", &rsp->hdr_usr, ps, depth)) return False; if(!smb_io_strhdr("hdr_wks ", &rsp->hdr_wks, ps, depth)) return False; if(!smb_io_strhdr("hdr_sess_key", &rsp->hdr_sess_key, ps, depth)) return False; if(!prs_uint32("neg_flags", ps, depth, &rsp->neg_flags)) /* 0x0000 82b1 */ return False; if(!prs_uint8s(True , "domain ", ps, depth, (uint8*)rsp->domain, MIN(rsp->hdr_domain.str_str_len, sizeof(rsp->domain)))) return False; if(!prs_uint8s(True , "user ", ps, depth, (uint8*)rsp->user, MIN(rsp->hdr_usr.str_str_len, sizeof(rsp->user)))) return False; if(!prs_uint8s(True , "wks ", ps, depth, (uint8*)rsp->wks, MIN(rsp->hdr_wks.str_str_len, sizeof(rsp->wks)))) return False; if(!prs_uint8s(False, "lm_resp ", ps, depth, (uint8*)rsp->lm_resp, MIN(rsp->hdr_lm_resp .str_str_len, sizeof(rsp->lm_resp)))) return False; if(!prs_uint8s(False, "nt_resp ", ps, depth, (uint8*)rsp->nt_resp, MIN(rsp->hdr_nt_resp .str_str_len, sizeof(rsp->nt_resp )))) return False; if(!prs_uint8s(False, "sess_key", ps, depth, (uint8*)rsp->sess_key, MIN(rsp->hdr_sess_key.str_str_len, sizeof(rsp->sess_key)))) return False; } return True; } /******************************************************************* Checks an RPC_AUTH_NTLMSSP_CHK structure. ********************************************************************/ BOOL rpc_auth_ntlmssp_chk(RPC_AUTH_NTLMSSP_CHK *chk, uint32 crc32, uint32 seq_num) { if (chk == NULL) return False; if (chk->crc32 != crc32 || chk->ver != NTLMSSP_SIGN_VERSION || chk->seq_num != seq_num) { DEBUG(5,("verify failed - crc %x ver %x seq %d\n", crc32, NTLMSSP_SIGN_VERSION, seq_num)); DEBUG(5,("verify expect - crc %x ver %x seq %d\n", chk->crc32, chk->ver, chk->seq_num)); return False; } return True; } /******************************************************************* Inits an RPC_AUTH_NTLMSSP_CHK structure. ********************************************************************/ void init_rpc_auth_ntlmssp_chk(RPC_AUTH_NTLMSSP_CHK *chk, uint32 ver, uint32 crc32, uint32 seq_num) { chk->ver = ver; chk->reserved = 0x0; chk->crc32 = crc32; chk->seq_num = seq_num; } /******************************************************************* Reads or writes an RPC_AUTH_NTLMSSP_CHK structure. ********************************************************************/ BOOL smb_io_rpc_auth_ntlmssp_chk(char *desc, RPC_AUTH_NTLMSSP_CHK *chk, prs_struct *ps, int depth) { if (chk == NULL) return False; prs_debug(ps, depth, desc, "smb_io_rpc_auth_ntlmssp_chk"); depth++; if(!prs_align(ps)) return False; if(!prs_uint32("ver ", ps, depth, &chk->ver)) return False; if(!prs_uint32("reserved", ps, depth, &chk->reserved)) return False; if(!prs_uint32("crc32 ", ps, depth, &chk->crc32)) return False; if(!prs_uint32("seq_num ", ps, depth, &chk->seq_num)) return False; return True; }