/* * 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. * * 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 \ { \ { \ 0x04, 0x5d, 0x88, 0x8a, \ 0xeb, 0x1c, 0xc9, 0x11, \ 0x9f, 0xe8, 0x08, 0x00, \ 0x2b, 0x10, 0x48, 0x60 \ }, 0x02 \ } \ #define SYNT_NETLOGON_V2 \ { \ { \ 0x04, 0x5d, 0x88, 0x8a, \ 0xeb, 0x1c, 0xc9, 0x11, \ 0x9f, 0xe8, 0x08, 0x00, \ 0x2b, 0x10, 0x48, 0x60 \ }, 0x02 \ } \ #define SYNT_WKSSVC_V1 \ { \ { \ 0x98, 0xd0, 0xff, 0x6b, \ 0x12, 0xa1, 0x10, 0x36, \ 0x98, 0x33, 0x46, 0xc3, \ 0xf8, 0x7e, 0x34, 0x5a \ }, 0x01 \ } \ #define SYNT_SRVSVC_V3 \ { \ { \ 0xc8, 0x4f, 0x32, 0x4b, \ 0x70, 0x16, 0xd3, 0x01, \ 0x12, 0x78, 0x5a, 0x47, \ 0xbf, 0x6e, 0xe1, 0x88 \ }, 0x03 \ } \ #define SYNT_LSARPC_V0 \ { \ { \ 0x78, 0x57, 0x34, 0x12, \ 0x34, 0x12, 0xcd, 0xab, \ 0xef, 0x00, 0x01, 0x23, \ 0x45, 0x67, 0x89, 0xab \ }, 0x00 \ } \ #define SYNT_SAMR_V1 \ { \ { \ 0x78, 0x57, 0x34, 0x12, \ 0x34, 0x12, 0xcd, 0xab, \ 0xef, 0x00, 0x01, 0x23, \ 0x45, 0x67, 0x89, 0xac \ }, 0x01 \ } \ #define SYNT_NETLOGON_V1 \ { \ { \ 0x78, 0x56, 0x34, 0x12, \ 0x34, 0x12, 0xcd, 0xab, \ 0xef, 0x00, 0x01, 0x23, \ 0x45, 0x67, 0xcf, 0xfb \ }, 0x01 \ } \ #define SYNT_WINREG_V1 \ { \ { \ 0x01, 0xd0, 0x8c, 0x33, \ 0x44, 0x22, 0xf1, 0x31, \ 0xaa, 0xaa, 0x90, 0x00, \ 0x38, 0x00, 0x10, 0x03 \ }, 0x01 \ } \ #define SYNT_NONE_V0 \ { \ { \ 0x00, 0x00, 0x00, 0x00, \ 0x00, 0x00, 0x00, 0x00, \ 0x00, 0x00, 0x00, 0x00, \ 0x00, 0x00, 0x00, 0x00 \ }, 0x00 \ } \ /* pipe string names */ #define PIPE_SRVSVC "\\PIPE\\srvsvc" #define PIPE_SAMR "\\PIPE\\samr" #define PIPE_WINREG "\\PIPE\\winreg" #define PIPE_WKSSVC "\\PIPE\\wkssvc" #define PIPE_NETLOGON "\\PIPE\\NETLOGON" #define PIPE_NTLSA "\\PIPE\\ntlsa" #define PIPE_NTSVCS "\\PIPE\\ntsvcs" #define PIPE_LSASS "\\PIPE\\lsass" #define PIPE_LSARPC "\\PIPE\\lsarpc" 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 }, { NULL , SYNT_NONE_V0 , NULL , SYNT_NONE_V0 } }; /******************************************************************* creates an RPC_HDR structure. ********************************************************************/ void make_rpc_hdr(RPC_HDR *hdr, enum RPC_PKT_TYPE pkt_type, uint8 flags, uint32 call_id, int data_len, int auth_len) { if (hdr == NULL) return; 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 = 0x10; /* 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. ********************************************************************/ void smb_io_rpc_hdr(char *desc, RPC_HDR *rpc, prs_struct *ps, int depth) { if (rpc == NULL) return; prs_debug(ps, depth, desc, "smb_io_rpc_hdr"); depth++; prs_uint8 ("major ", ps, depth, &(rpc->major)); prs_uint8 ("minor ", ps, depth, &(rpc->minor)); prs_uint8 ("pkt_type ", ps, depth, &(rpc->pkt_type)); prs_uint8 ("flags ", ps, depth, &(rpc->flags)); prs_uint32("pack_type ", ps, depth, &(rpc->pack_type)); prs_uint16("frag_len ", ps, depth, &(rpc->frag_len)); prs_uint16("auth_len ", ps, depth, &(rpc->auth_len)); prs_uint32("call_id ", ps, depth, &(rpc->call_id)); } /******************************************************************* reads or writes an RPC_IFACE structure. ********************************************************************/ static void smb_io_rpc_iface(char *desc, RPC_IFACE *ifc, prs_struct *ps, int depth) { if (ifc == NULL) return; prs_debug(ps, depth, desc, "smb_io_rpc_iface"); depth++; prs_align(ps); prs_uint8s (False, "data ", ps, depth, ifc->data, sizeof(ifc->data)); prs_uint32 ( "version", ps, depth, &(ifc->version)); } /******************************************************************* creates an RPC_ADDR_STR structure. ********************************************************************/ static void make_rpc_addr_str(RPC_ADDR_STR *str, char *name) { if (str == NULL || name == NULL) return; str->len = strlen(name) + 1; fstrcpy(str->str, name); } /******************************************************************* reads or writes an RPC_ADDR_STR structure. ********************************************************************/ static void smb_io_rpc_addr_str(char *desc, RPC_ADDR_STR *str, prs_struct *ps, int depth) { if (str == NULL) return; prs_debug(ps, depth, desc, "smb_io_rpc_addr_str"); depth++; prs_align(ps); prs_uint16 ( "len", ps, depth, &(str->len)); prs_uint8s (True, "str", ps, depth, (uchar*)str->str, str->len); } /******************************************************************* creates an RPC_HDR_BBA structure. ********************************************************************/ static void make_rpc_hdr_bba(RPC_HDR_BBA *bba, uint16 max_tsize, uint16 max_rsize, uint32 assoc_gid) { if (bba == NULL) return; 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 void smb_io_rpc_hdr_bba(char *desc, RPC_HDR_BBA *rpc, prs_struct *ps, int depth) { if (rpc == NULL) return; prs_debug(ps, depth, desc, "smb_io_rpc_hdr_bba"); depth++; prs_uint16("max_tsize", ps, depth, &(rpc->max_tsize)); prs_uint16("max_rsize", ps, depth, &(rpc->max_rsize)); prs_uint32("assoc_gid", ps, depth, &(rpc->assoc_gid)); } /******************************************************************* creates an RPC_HDR_RB structure. ********************************************************************/ void make_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) { if (rpc == NULL) return; make_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 */ memcpy(&(rpc->abstract), abstract, sizeof(rpc->abstract)); /* num and vers. of interface to use for replies */ memcpy(&(rpc->transfer), transfer, sizeof(rpc->transfer)); } /******************************************************************* reads or writes an RPC_HDR_RB structure. ********************************************************************/ void smb_io_rpc_hdr_rb(char *desc, RPC_HDR_RB *rpc, prs_struct *ps, int depth) { if (rpc == NULL) return; prs_debug(ps, depth, desc, "smb_io_rpc_hdr_rb"); depth++; smb_io_rpc_hdr_bba("", &(rpc->bba), ps, depth); prs_uint32("num_elements", ps, depth, &(rpc->num_elements)); prs_uint16("context_id ", ps, depth, &(rpc->context_id )); prs_uint8 ("num_syntaxes", ps, depth, &(rpc->num_syntaxes)); smb_io_rpc_iface("", &(rpc->abstract), ps, depth); smb_io_rpc_iface("", &(rpc->transfer), ps, depth); } /******************************************************************* creates an RPC_RESULTS structure. lkclXXXX only one reason at the moment! ********************************************************************/ static void make_rpc_results(RPC_RESULTS *res, uint8 num_results, uint16 result, uint16 reason) { if (res == NULL) return; 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 void smb_io_rpc_results(char *desc, RPC_RESULTS *res, prs_struct *ps, int depth) { if (res == NULL) return; prs_debug(ps, depth, desc, "smb_io_rpc_results"); depth++; prs_align(ps); prs_uint8 ("num_results", ps, depth, &(res->num_results)); prs_align(ps); prs_uint16("result ", ps, depth, &(res->result )); prs_uint16("reason ", ps, depth, &(res->reason )); } /******************************************************************* creates an RPC_HDR_BA structure. lkclXXXX only one reason at the moment! ********************************************************************/ void make_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) { if (rpc == NULL || transfer == NULL || pipe_addr == NULL) return; make_rpc_hdr_bba (&(rpc->bba ), max_tsize, max_rsize, assoc_gid); make_rpc_addr_str(&(rpc->addr), pipe_addr); make_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. ********************************************************************/ void smb_io_rpc_hdr_ba(char *desc, RPC_HDR_BA *rpc, prs_struct *ps, int depth) { if (rpc == NULL) return; prs_debug(ps, depth, desc, "smb_io_rpc_hdr_ba"); depth++; smb_io_rpc_hdr_bba ("", &(rpc->bba) , ps, depth); smb_io_rpc_addr_str("", &(rpc->addr) , ps, depth); smb_io_rpc_results ("", &(rpc->res) , ps, depth); smb_io_rpc_iface ("", &(rpc->transfer), ps, depth); } /******************************************************************* creates an RPC_HDR_REQ structure. ********************************************************************/ void make_rpc_hdr_req(RPC_HDR_REQ *hdr, uint32 data_len, uint16 opnum) { if (hdr == NULL) return; hdr->alloc_hint = data_len - 0x18; /* allocation hint */ hdr->context_id = 0; /* presentation context identifier */ hdr->opnum = opnum; /* opnum */ } /******************************************************************* reads or writes an RPC_HDR_REQ structure. ********************************************************************/ void smb_io_rpc_hdr_req(char *desc, RPC_HDR_REQ *rpc, prs_struct *ps, int depth) { if (rpc == NULL) return; prs_debug(ps, depth, desc, "smb_io_rpc_hdr_req"); depth++; prs_uint32("alloc_hint", ps, depth, &(rpc->alloc_hint)); prs_uint16("context_id", ps, depth, &(rpc->context_id)); prs_uint16("opnum ", ps, depth, &(rpc->opnum)); } /******************************************************************* reads or writes an RPC_HDR_RESP structure. ********************************************************************/ void smb_io_rpc_hdr_resp(char *desc, RPC_HDR_RESP *rpc, prs_struct *ps, int depth) { if (rpc == NULL) return; prs_debug(ps, depth, desc, "smb_io_rpc_hdr_resp"); depth++; prs_uint32("alloc_hint", ps, depth, &(rpc->alloc_hint)); prs_uint16("context_id", ps, depth, &(rpc->context_id)); prs_uint8 ("cancel_ct ", ps, depth, &(rpc->cancel_count)); prs_uint8 ("reserved ", ps, depth, &(rpc->reserved)); } /******************************************************************* creates an RPC_AUTH_NTLMSSP_NEG structure. ********************************************************************/ void make_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); if (neg == NULL) return; neg->neg_flgs = neg_flgs ; /* 0x00b2b3 */ make_str_hdr(&neg->hdr_myname, len_myname, len_myname, 1); make_str_hdr(&neg->hdr_domain, len_domain, len_domain, 1); fstrcpy(neg->myname, myname); fstrcpy(neg->domain, domain); } /******************************************************************* reads or writes an RPC_AUTH_NTLMSSP_NEG structure. ********************************************************************/ void smb_io_rpc_auth_ntlmssp_neg(char *desc, RPC_AUTH_NTLMSSP_NEG *neg, prs_struct *ps, int depth) { if (neg == NULL) return; prs_debug(ps, depth, desc, "smb_io_rpc_auth_ntlmssp_neg"); depth++; prs_uint32("neg_flgs ", ps, depth, &(neg->neg_flgs)); smb_io_strhdr("hdr_myname", &(neg->hdr_myname), ps, depth); smb_io_strhdr("hdr_domain", &(neg->hdr_domain), ps, depth); prs_string("myname", ps, depth, neg->myname, neg->hdr_myname.str_str_len, sizeof(neg->myname)); prs_string("domain", ps, depth, neg->domain, neg->hdr_domain.str_str_len, sizeof(neg->domain)); } /******************************************************************* creates an RPC_AUTH_VERIFIER structure. ********************************************************************/ void make_rpc_auth_verifier(RPC_AUTH_VERIFIER *rav, uint8 auth_type, uint8 auth_level, uint8 stub_type_len, char *signature, uint32 msg_type) { if (rav == NULL) return; rav->auth_type = auth_type; /* nt lm ssp 0x0a */ rav->auth_level = auth_level; /* 0x06 */ rav->stub_type_len = stub_type_len; /* 0x00 */ rav->padding = 0; /* padding 0x00 */ rav->ptr_0 = 0x0014a0c0; /* non-zero pointer to something */ fstrcpy(rav->signature, signature); /* "NTLMSSP" */ rav->msg_type = msg_type; /* NTLMSSP_MESSAGE_TYPE */ } /******************************************************************* reads or writes an RPC_AUTH_VERIFIER structure. ********************************************************************/ void smb_io_rpc_auth_verifier(char *desc, RPC_AUTH_VERIFIER *rav, prs_struct *ps, int depth) { if (rav == NULL) return; prs_debug(ps, depth, desc, "smb_io_rpc_auth_verifier"); depth++; prs_uint8("auth_type ", ps, depth, &(rav->auth_type)); /* nt lm ssp 0x0a */ prs_uint8("auth_level ", ps, depth, &(rav->auth_level));/* 0x06 */ prs_uint8("stub_type_len", ps, depth, &(rav->stub_type_len)); prs_uint8("padding ", ps, depth, &(rav->padding)); prs_uint32("ptr_0", ps, depth, &(rav->ptr_0 )); /* non-zero pointer to something */ prs_string("signature", ps, depth, rav->signature, 0, sizeof(rav->signature)); /* "NTLMSSP" */ prs_uint32("msg_type ", ps, depth, &(rav->msg_type )); /* NTLMSSP_MESSAGE_TYPE */ } /******************************************************************* creates an RPC_AUTH_NTLMSSP_CHAL structure. ********************************************************************/ void make_rpc_auth_ntlmssp_chal(RPC_AUTH_NTLMSSP_CHAL *chl, uint32 neg_flags, uint8 challenge[8]) { if (chl == NULL) return; chl->unknown_1 = 0x0; chl->unknown_2 = 0x00000028; chl->neg_flags = neg_flags; /* 0x0082b1 */ memcpy(chl->challenge, challenge, sizeof(chl->challenge)); /* bzero (chl->reserved , sizeof(chl->reserved)); */ } /******************************************************************* reads or writes an RPC_AUTH_NTLMSSP_CHAL structure. ********************************************************************/ void smb_io_rpc_auth_ntlmssp_chal(char *desc, RPC_AUTH_NTLMSSP_CHAL *chl, prs_struct *ps, int depth) { if (chl == NULL) return; prs_debug(ps, depth, desc, "smb_io_rpc_auth_ntlmssp_chal"); depth++; prs_uint32("unknown_1", ps, depth, &(chl->unknown_1)); /* 0x0000 0000 */ prs_uint32("unknown_2", ps, depth, &(chl->unknown_2)); /* 0x0000 b2b3 */ prs_uint32("neg_flags", ps, depth, &(chl->neg_flags)); /* 0x0000 82b1 */ prs_uint8s (False, "challenge", ps, depth, chl->challenge, sizeof(chl->challenge)); /* prs_uint8s (False, "reserved ", ps, depth, chl->reserved , sizeof(chl->reserved )); */ } /******************************************************************* creates an RPC_AUTH_NTLMSSP_RESP structure. ********************************************************************/ void make_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) { int dom_len = strlen(domain) * 2; int wks_len = strlen(wks ) * 2; int usr_len = strlen(user ) * 2; int lm_len = lm_resp != NULL ? 24 : 0; int nt_len = nt_resp != NULL ? 24 : 0; if (rsp == NULL) return; make_str_hdr(&rsp->hdr_lm_resp, lm_len, lm_len, 1); make_str_hdr(&rsp->hdr_nt_resp, nt_len, nt_len, 1); make_str_hdr(&rsp->hdr_domain , dom_len, dom_len, 1); make_str_hdr(&rsp->hdr_usr , usr_len, usr_len, 1); make_str_hdr(&rsp->hdr_wks , wks_len, wks_len, 1); make_str_hdr(&rsp->hdr_sess_key, 0, 0, 1); rsp->neg_flags = neg_flags; memcpy(&rsp->lm_resp, lm_resp, 24); memcpy(&rsp->nt_resp, nt_resp, 24); 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. ********************************************************************/ void smb_io_rpc_auth_ntlmssp_resp(char *desc, RPC_AUTH_NTLMSSP_RESP *rsp, prs_struct *ps, int depth) { if (rsp == NULL) return; prs_debug(ps, depth, desc, "smb_io_rpc_auth_ntlmssp_resp"); depth++; smb_io_strhdr("hdr_lm_resp ", &rsp->hdr_lm_resp , ps, depth); smb_io_strhdr("hdr_nt_resp ", &rsp->hdr_nt_resp , ps, depth); smb_io_strhdr("hdr_domain ", &rsp->hdr_domain , ps, depth); smb_io_strhdr("hdr_user ", &rsp->hdr_usr , ps, depth); smb_io_strhdr("hdr_wks ", &rsp->hdr_wks , ps, depth); smb_io_strhdr("hdr_sess_key", &rsp->hdr_sess_key, ps, depth); prs_uint32("neg_flags", ps, depth, &(rsp->neg_flags)); /* 0x0000 82b1 */ prs_string("sess_key", ps, depth, rsp->sess_key, rsp->hdr_sess_key.str_str_len, sizeof(rsp->sess_key)); prs_string("wks ", ps, depth, rsp->wks , rsp->hdr_wks .str_str_len, sizeof(rsp->wks )); prs_string("user ", ps, depth, rsp->user , rsp->hdr_usr .str_str_len, sizeof(rsp->user )); prs_string("domain ", ps, depth, rsp->domain , rsp->hdr_domain .str_str_len, sizeof(rsp->domain )); prs_string("nt_resp ", ps, depth, rsp->nt_resp , rsp->hdr_nt_resp .str_str_len, sizeof(rsp->nt_resp )); prs_string("lm_resp ", ps, depth, rsp->lm_resp , rsp->hdr_lm_resp .str_str_len, sizeof(rsp->lm_resp )); } #if 0 /* attached to the end of encrypted rpc requests and responses */ /* RPC_AUTH_NTLMSSP_CHK */ typedef struct rpc_auth_ntlmssp_chk_info { uint32 ver; /* 0x1 */ uint8 data[12]; } RPC_AUTH_NTLMSSP_CHK; #endif /* 0 */