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authorJeremy Allison <jra@samba.org>2000-03-09 21:46:04 +0000
committerJeremy Allison <jra@samba.org>2000-03-09 21:46:04 +0000
commit7f7c2e259084399e402589bed88ba1ad6fa4b57e (patch)
treef6c84df74fc3eebee15a035e2688903766f15222 /source3/rpc_server
parent6bb92a6d38db41a11e80c4369623d137763f0f52 (diff)
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Not used. Functionality folded back into rpc_server/srv_pipe.c (where it
originally came from). Jeremy. (This used to be commit b9bc7e8cb6255f2973f680678f93978f17489938)
Diffstat (limited to 'source3/rpc_server')
-rw-r--r--source3/rpc_server/srv_pipe_srv.c1181
1 files changed, 0 insertions, 1181 deletions
diff --git a/source3/rpc_server/srv_pipe_srv.c b/source3/rpc_server/srv_pipe_srv.c
deleted file mode 100644
index d4d313b803..0000000000
--- a/source3/rpc_server/srv_pipe_srv.c
+++ /dev/null
@@ -1,1181 +0,0 @@
-/*
- * Unix SMB/Netbios implementation.
- * Version 1.9.
- * RPC Pipe client / server routines
- * Copyright (C) Andrew Tridgell 1992-1998
- * Copyright (C) Luke Kenneth Casson Leighton 1996-1998,
- * Copyright (C) Paul Ashton 1997-1998.
- * 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.
- */
-
-/* this module apparently provides an implementation of DCE/RPC over a
- * named pipe (IPC$ connection using SMBtrans). details of DCE/RPC
- * documentation are available (in on-line form) from the X-Open group.
- *
- * this module should provide a level of abstraction between SMB
- * and DCE/RPC, while minimising the amount of mallocs, unnecessary
- * data copies, and network traffic.
- *
- * in this version, which takes a "let's learn what's going on and
- * get something running" approach, there is additional network
- * traffic generated, but the code should be easier to understand...
- *
- * ... if you read the docs. or stare at packets for weeks on end.
- *
- */
-
-#include "includes.h"
-#include "nterr.h"
-
-extern int DEBUGLEVEL;
-
-static void NTLMSSPcalc_p( pipes_struct *p, unsigned char *data, int len)
-{
- unsigned char *hash = p->ntlmssp_hash;
- unsigned char index_i = hash[256];
- unsigned char index_j = hash[257];
- int ind;
-
- for( ind = 0; ind < len; ind++) {
- unsigned char tc;
- unsigned char t;
-
- index_i++;
- index_j += hash[index_i];
-
- tc = hash[index_i];
- hash[index_i] = hash[index_j];
- hash[index_j] = tc;
-
- t = hash[index_i] + hash[index_j];
- data[ind] = data[ind] ^ hash[t];
- }
-
- hash[256] = index_i;
- hash[257] = index_j;
-}
-
-/*******************************************************************
- Generate the next PDU to be returned from the data in p->rdata.
- We cheat here as this function doesn't handle the special auth
- footers of the authenticated bind response reply.
- ********************************************************************/
-
-BOOL create_next_pdu(pipes_struct *p)
-{
- RPC_HDR_RESP hdr_resp;
- BOOL auth_verify = IS_BITS_SET_ALL(p->ntlmssp_chal_flags, NTLMSSP_NEGOTIATE_SIGN);
- BOOL auth_seal = IS_BITS_SET_ALL(p->ntlmssp_chal_flags, NTLMSSP_NEGOTIATE_SEAL);
- uint32 data_len;
- uint32 data_space_available;
- uint32 data_len_left;
- prs_struct outgoing_pdu;
- char *data;
- char *data_from;
- uint32 data_pos;
-
- memset((char *)&hdr_resp, '\0', sizeof(hdr_resp));
-
- /* Change the incoming request header to a response. */
- p->hdr.pkt_type = RPC_RESPONSE;
-
- /* Set up rpc header flags. */
- if (p->out_data.data_sent_length == 0)
- p->hdr.flags = RPC_FLG_FIRST;
- else
- p->hdr.flags = 0;
-
- /*
- * Work out how much we can fit in a sigle PDU.
- */
-
- data_space_available = sizeof(p->out_data.current_pdu) - RPC_HEADER_LEN - RPC_HDR_RESP_LEN;
- if(p->ntlmssp_auth_validated)
- data_space_available -= (RPC_HDR_AUTH_LEN + RPC_AUTH_NTLMSSP_CHK_LEN);
-
- /*
- * The amount we send is the minimum of the available
- * space and the amount left to send.
- */
-
- data_len_left = prs_offset(&p->out_data.rdata) - p->out_data.data_sent_length;
-
- /*
- * Ensure there really is data left to send.
- */
-
- if(!data_len_left) {
- DEBUG(0,("create_next_pdu: no data left to send !\n"));
- return False;
- }
-
- data_len = MIN(data_len_left, data_space_available);
-
- /*
- * Set up the alloc hint. This should be the data left to
- * send.
- */
-
- hdr_resp.alloc_hint = data_len_left;
-
- /*
- * Set up the header lengths.
- */
-
- if (p->ntlmssp_auth_validated) {
- p->hdr.frag_len = RPC_HEADER_LEN + RPC_HDR_RESP_LEN + data_len +
- RPC_HDR_AUTH_LEN + RPC_AUTH_NTLMSSP_CHK_LEN;
- p->hdr.auth_len = RPC_AUTH_NTLMSSP_CHK_LEN;
- } else {
- p->hdr.frag_len = RPC_HEADER_LEN + RPC_HDR_RESP_LEN + data_len;
- p->hdr.auth_len = 0;
- }
-
- /*
- * Work out if this PDU will be the last.
- */
-
- if(p->out_data.data_sent_length + data_len >= prs_offset(&p->out_data.rdata))
- p->hdr.flags |= RPC_FLG_LAST;
-
- /*
- * Init the parse struct to point at the outgoing
- * data.
- */
-
- prs_init( &outgoing_pdu, 0, 4, MARSHALL);
- prs_give_memory( &outgoing_pdu, (char *)p->out_data.current_pdu, sizeof(p->out_data.current_pdu), False);
-
- /* Store the header in the data stream. */
- if(!smb_io_rpc_hdr("hdr", &p->hdr, &outgoing_pdu, 0)) {
- DEBUG(0,("create_next_pdu: failed to marshall RPC_HDR.\n"));
- return False;
- }
-
- if(!smb_io_rpc_hdr_resp("resp", &hdr_resp, &outgoing_pdu, 0)) {
- DEBUG(0,("create_next_pdu: failed to marshall RPC_HDR_RESP.\n"));
- return False;
- }
-
- /* Store the current offset. */
- data_pos = prs_offset(&outgoing_pdu);
-
- /* Copy the data into the PDU. */
- data_from = prs_data_p(&p->out_data.rdata) + p->out_data.data_sent_length;
-
- if(!prs_append_data(&outgoing_pdu, data_from, data_len)) {
- DEBUG(0,("create_next_pdu: failed to copy %u bytes of data.\n", (unsigned int)data_len));
- return False;
- }
-
- /*
- * Set data to point to where we copied the data into.
- */
-
- data = prs_data_p(&outgoing_pdu) + data_pos;
-
- if (p->hdr.auth_len > 0) {
- uint32 crc32 = 0;
-
- DEBUG(5,("create_next_pdu: sign: %s seal: %s data %d auth %d\n",
- BOOLSTR(auth_verify), BOOLSTR(auth_seal), data_len, p->hdr.auth_len));
-
- if (auth_seal) {
- crc32 = crc32_calc_buffer(data, data_len);
- NTLMSSPcalc_p(p, (uchar*)data, data_len);
- }
-
- if (auth_seal || auth_verify) {
- RPC_HDR_AUTH auth_info;
-
- init_rpc_hdr_auth(&auth_info, NTLMSSP_AUTH_TYPE, NTLMSSP_AUTH_LEVEL,
- (auth_verify ? RPC_HDR_AUTH_LEN : 0), (auth_verify ? 1 : 0));
- if(!smb_io_rpc_hdr_auth("hdr_auth", &auth_info, &outgoing_pdu, 0)) {
- DEBUG(0,("create_next_pdu: failed to marshall RPC_HDR_AUTH.\n"));
- return False;
- }
- }
-
- if (auth_verify) {
- RPC_AUTH_NTLMSSP_CHK ntlmssp_chk;
- char *auth_data = prs_data_p(&outgoing_pdu);
-
- p->ntlmssp_seq_num++;
- init_rpc_auth_ntlmssp_chk(&ntlmssp_chk, NTLMSSP_SIGN_VERSION,
- crc32, p->ntlmssp_seq_num++);
- auth_data = prs_data_p(&outgoing_pdu) + prs_offset(&outgoing_pdu) + 4;
- if(!smb_io_rpc_auth_ntlmssp_chk("auth_sign", &ntlmssp_chk, &outgoing_pdu, 0)) {
- DEBUG(0,("create_next_pdu: failed to marshall RPC_AUTH_NTLMSSP_CHK.\n"));
- return False;
- }
- NTLMSSPcalc_p(p, (uchar*)auth_data, RPC_AUTH_NTLMSSP_CHK_LEN - 4);
- }
- }
-
- /*
- * Setup the counts for this PDU.
- */
-
- p->out_data.data_sent_length += data_len;
- p->out_data.current_pdu_len = p->hdr.frag_len;
- p->out_data.current_pdu_sent = 0;
-
- return True;
-}
-
-/*******************************************************************
- Process an NTLMSSP authentication response.
- If this function succeeds, the user has been authenticated
- and their domain, name and calling workstation stored in
- the pipe struct.
- The initial challenge is stored in p->challenge.
- *******************************************************************/
-
-static BOOL api_pipe_ntlmssp_verify(pipes_struct *p, RPC_AUTH_NTLMSSP_RESP *ntlmssp_resp)
-{
- uchar lm_owf[24];
- uchar nt_owf[24];
- fstring user_name;
- fstring unix_user_name;
- fstring domain;
- fstring wks;
- BOOL guest_user = False;
- struct smb_passwd *smb_pass = NULL;
- struct passwd *pass = NULL;
- uchar null_smb_passwd[16];
- uchar *smb_passwd_ptr = NULL;
-
- DEBUG(5,("api_pipe_ntlmssp_verify: checking user details\n"));
-
- memset(p->user_name, '\0', sizeof(p->user_name));
- memset(p->unix_user_name, '\0', sizeof(p->unix_user_name));
- memset(p->domain, '\0', sizeof(p->domain));
- memset(p->wks, '\0', sizeof(p->wks));
-
- /*
- * Setup an empty password for a guest user.
- */
-
- memset(null_smb_passwd,0,16);
-
- /*
- * We always negotiate UNICODE.
- */
-
- if (IS_BITS_SET_ALL(p->ntlmssp_chal_flags, NTLMSSP_NEGOTIATE_UNICODE)) {
- fstrcpy(user_name, dos_unistrn2((uint16*)ntlmssp_resp->user, ntlmssp_resp->hdr_usr.str_str_len/2));
- fstrcpy(domain, dos_unistrn2((uint16*)ntlmssp_resp->domain, ntlmssp_resp->hdr_domain.str_str_len/2));
- fstrcpy(wks, dos_unistrn2((uint16*)ntlmssp_resp->wks, ntlmssp_resp->hdr_wks.str_str_len/2));
- } else {
- fstrcpy(user_name, ntlmssp_resp->user);
- fstrcpy(domain, ntlmssp_resp->domain);
- fstrcpy(wks, ntlmssp_resp->wks);
- }
-
- DEBUG(5,("user: %s domain: %s wks: %s\n", user_name, domain, wks));
-
- memcpy(lm_owf, ntlmssp_resp->lm_resp, sizeof(lm_owf));
- memcpy(nt_owf, ntlmssp_resp->nt_resp, sizeof(nt_owf));
-
-#ifdef DEBUG_PASSWORD
- DEBUG(100,("lm, nt owfs, chal\n"));
- dump_data(100, (char *)lm_owf, sizeof(lm_owf));
- dump_data(100, (char *)nt_owf, sizeof(nt_owf));
- dump_data(100, (char *)p->challenge, 8);
-#endif
-
- /*
- * Allow guest access. Patch from Shirish Kalele <kalele@veritas.com>.
- */
-
- if((strlen(user_name) == 0) && (ntlmssp_resp->hdr_lm_resp.str_str_len==0) &&
- (ntlmssp_resp->hdr_nt_resp.str_str_len==0)) {
-
- guest_user = True;
-
- fstrcpy(unix_user_name, lp_guestaccount(-1));
- DEBUG(100,("Null user in NTLMSSP verification. Using guest = %s\n", unix_user_name));
-
- smb_passwd_ptr = null_smb_passwd;
-
- } else {
-
- /*
- * Pass the user through the NT -> unix user mapping
- * function.
- */
-
- fstrcpy(unix_user_name, user_name);
- (void)map_username(unix_user_name);
-
- /*
- * Do the length checking only if user is not NULL.
- */
-
- if (ntlmssp_resp->hdr_lm_resp.str_str_len == 0)
- return False;
- if (ntlmssp_resp->hdr_nt_resp.str_str_len == 0)
- return False;
- if (ntlmssp_resp->hdr_usr.str_str_len == 0)
- return False;
- if (ntlmssp_resp->hdr_domain.str_str_len == 0)
- return False;
- if (ntlmssp_resp->hdr_wks.str_str_len == 0)
- return False;
-
- }
-
- /*
- * Find the user in the unix password db.
- */
-
- if(!(pass = Get_Pwnam(unix_user_name,True))) {
- DEBUG(1,("Couldn't find user '%s' in UNIX password database.\n",unix_user_name));
- return(False);
- }
-
- if(!guest_user) {
-
- become_root(True);
-
- if(!(p->ntlmssp_auth_validated = pass_check_smb(unix_user_name, domain,
- (uchar*)p->challenge, lm_owf, nt_owf, NULL))) {
- DEBUG(1,("api_pipe_ntlmssp_verify: User %s\\%s from machine %s \
-failed authentication on named pipe %s.\n", domain, unix_user_name, wks, p->name ));
- unbecome_root(True);
- return False;
- }
-
- if(!(smb_pass = getsmbpwnam(unix_user_name))) {
- DEBUG(1,("api_pipe_ntlmssp_verify: Cannot find user %s in smb passwd database.\n",
- unix_user_name));
- unbecome_root(True);
- return False;
- }
-
- unbecome_root(True);
-
- if (smb_pass == NULL) {
- DEBUG(1,("api_pipe_ntlmssp_verify: Couldn't find user '%s' in smb_passwd file.\n",
- unix_user_name));
- return(False);
- }
-
- /* Quit if the account was disabled. */
- if((smb_pass->acct_ctrl & ACB_DISABLED) || !smb_pass->smb_passwd) {
- DEBUG(1,("Account for user '%s' was disabled.\n", unix_user_name));
- return(False);
- }
-
- if(!smb_pass->smb_nt_passwd) {
- DEBUG(1,("Account for user '%s' has no NT password hash.\n", unix_user_name));
- return(False);
- }
-
- smb_passwd_ptr = smb_pass->smb_passwd;
- }
-
- /*
- * Set up the sign/seal data.
- */
-
- {
- uchar p24[24];
- NTLMSSPOWFencrypt(smb_passwd_ptr, lm_owf, p24);
- {
- unsigned char j = 0;
- int ind;
-
- unsigned char k2[8];
-
- memcpy(k2, p24, 5);
- k2[5] = 0xe5;
- k2[6] = 0x38;
- k2[7] = 0xb0;
-
- for (ind = 0; ind < 256; ind++)
- p->ntlmssp_hash[ind] = (unsigned char)ind;
-
- for( ind = 0; ind < 256; ind++) {
- unsigned char tc;
-
- j += (p->ntlmssp_hash[ind] + k2[ind%8]);
-
- tc = p->ntlmssp_hash[ind];
- p->ntlmssp_hash[ind] = p->ntlmssp_hash[j];
- p->ntlmssp_hash[j] = tc;
- }
-
- p->ntlmssp_hash[256] = 0;
- p->ntlmssp_hash[257] = 0;
- }
-/* NTLMSSPhash(p->ntlmssp_hash, p24); */
- p->ntlmssp_seq_num = 0;
-
- }
-
- fstrcpy(p->user_name, user_name);
- fstrcpy(p->unix_user_name, unix_user_name);
- fstrcpy(p->domain, domain);
- fstrcpy(p->wks, wks);
-
- /*
- * Store the UNIX credential data (uid/gid pair) in the pipe structure.
- */
-
- p->uid = pass->pw_uid;
- p->gid = pass->pw_gid;
-
- p->ntlmssp_auth_validated = True;
- return True;
-}
-
-/*******************************************************************
- The switch table for the pipe names and the functions to handle them.
- *******************************************************************/
-
-struct api_cmd
-{
- char * pipe_clnt_name;
- char * pipe_srv_name;
- BOOL (*fn) (pipes_struct *, prs_struct *);
-};
-
-static struct api_cmd api_fd_commands[] =
-{
- { "lsarpc", "lsass", api_ntlsa_rpc },
- { "samr", "lsass", api_samr_rpc },
- { "srvsvc", "ntsvcs", api_srvsvc_rpc },
- { "wkssvc", "ntsvcs", api_wkssvc_rpc },
- { "NETLOGON", "lsass", api_netlog_rpc },
-#if DISABLED_IN_2_0
- { "winreg", "winreg", api_reg_rpc },
-#endif
- { "spoolss", "spoolss", api_spoolss_rpc },
- { NULL, NULL, NULL }
-};
-
-/*******************************************************************
- This is the client reply to our challenge for an authenticated
- bind request. The challenge we sent is in p->challenge.
-*******************************************************************/
-
-static BOOL api_pipe_bind_auth_resp(pipes_struct *p, prs_struct *pd)
-{
- RPC_HDR_AUTHA autha_info;
- RPC_AUTH_VERIFIER auth_verifier;
- RPC_AUTH_NTLMSSP_RESP ntlmssp_resp;
-
- DEBUG(5,("api_pipe_bind_auth_resp: decode request. %d\n", __LINE__));
-
- if (p->hdr.auth_len == 0) {
- DEBUG(0,("api_pipe_bind_auth_resp: No auth field sent !\n"));
- return False;
- }
-
- /*
- * Decode the authentication verifier response.
- */
-
- if(!smb_io_rpc_hdr_autha("", &autha_info, pd, 0)) {
- DEBUG(0,("api_pipe_bind_auth_resp: unmarshall of RPC_HDR_AUTHA failed.\n"));
- return False;
- }
-
- if (autha_info.auth_type != NTLMSSP_AUTH_TYPE || autha_info.auth_level != NTLMSSP_AUTH_LEVEL) {
- DEBUG(0,("api_pipe_bind_auth_resp: incorrect auth type (%d) or level (%d).\n",
- (int)autha_info.auth_type, (int)autha_info.auth_level ));
- return False;
- }
-
- if(!smb_io_rpc_auth_verifier("", &auth_verifier, pd, 0)) {
- DEBUG(0,("api_pipe_bind_auth_resp: unmarshall of RPC_AUTH_VERIFIER failed.\n"));
- return False;
- }
-
- /*
- * Ensure this is a NTLMSSP_AUTH packet type.
- */
-
- if (!rpc_auth_verifier_chk(&auth_verifier, "NTLMSSP", NTLMSSP_AUTH)) {
- DEBUG(0,("api_pipe_bind_auth_resp: rpc_auth_verifier_chk failed.\n"));
- return False;
- }
-
- if(!smb_io_rpc_auth_ntlmssp_resp("", &ntlmssp_resp, pd, 0)) {
- DEBUG(0,("api_pipe_bind_auth_resp: Failed to unmarshall RPC_AUTH_NTLMSSP_RESP.\n"));
- return False;
- }
-
- /*
- * The following call actually checks the challenge/response data.
- * for correctness against the given DOMAIN\user name.
- */
-
- if (!api_pipe_ntlmssp_verify(p, &ntlmssp_resp))
- return False;
-
- return True;
-}
-
-/*******************************************************************
- Marshall a bind_nak pdu.
-*******************************************************************/
-
-static BOOL setup_bind_nak(pipes_struct *p, prs_struct *pd)
-{
- prs_struct outgoing_rpc;
- RPC_HDR nak_hdr;
- uint16 zero = 0;
-
- /*
- * Marshall directly into the outgoing PDU space. We
- * must do this as we need to set to the bind response
- * header and are never sending more than one PDU here.
- */
-
- prs_init( &outgoing_rpc, 0, 4, MARSHALL);
- prs_give_memory( &outgoing_rpc, (char *)p->out_data.current_pdu, sizeof(p->out_data.current_pdu), False);
-
-
- /*
- * Initialize a bind_nak header.
- */
-
- init_rpc_hdr(&nak_hdr, RPC_BINDNACK, RPC_FLG_FIRST | RPC_FLG_LAST,
- p->hdr.call_id, RPC_HEADER_LEN + sizeof(uint16), 0);
-
- /*
- * Marshall the header into the outgoing PDU.
- */
-
- if(!smb_io_rpc_hdr("", &nak_hdr, &outgoing_rpc, 0)) {
- DEBUG(0,("setup_bind_nak: marshalling of RPC_HDR failed.\n"));
- return False;
- }
-
- /*
- * Now add the reject reason.
- */
-
- if(!prs_uint16("reject code", &outgoing_rpc, 0, &zero))
- return False;
-
- p->out_data.data_sent_length = 0;
- p->out_data.current_pdu_len = prs_offset(&outgoing_rpc);
- p->out_data.current_pdu_sent = 0;
-
- return True;
-}
-
-/*******************************************************************
- Marshall a fault pdu.
-*******************************************************************/
-
-static BOOL setup_fault_pdu(pipes_struct *p)
-{
- prs_struct outgoing_pdu;
- RPC_HDR fault_hdr;
- RPC_HDR_RESP hdr_resp;
- RPC_HDR_FAULT fault_resp;
-
- /*
- * Marshall directly into the outgoing PDU space. We
- * must do this as we need to set to the bind response
- * header and are never sending more than one PDU here.
- */
-
- prs_init( &outgoing_pdu, 0, 4, MARSHALL);
- prs_give_memory( &outgoing_pdu, (char *)p->out_data.current_pdu, sizeof(p->out_data.current_pdu), False);
-
- /*
- * Initialize a fault header.
- */
-
- init_rpc_hdr(&fault_hdr, RPC_FAULT, RPC_FLG_FIRST | RPC_FLG_LAST | RPC_FLG_NOCALL,
- p->hdr.call_id, RPC_HEADER_LEN + RPC_HDR_RESP_LEN + RPC_HDR_FAULT_LEN, 0);
-
- /*
- * Initialize the HDR_RESP and FAULT parts of the PDU.
- */
-
- memset((char *)&hdr_resp, '\0', sizeof(hdr_resp));
-
- fault_resp.status = 0x1c010002;
- fault_resp.reserved = 0;
-
- /*
- * Marshall the header into the outgoing PDU.
- */
-
- if(!smb_io_rpc_hdr("", &fault_hdr, &outgoing_pdu, 0)) {
- DEBUG(0,("setup_bind_nak: marshalling of RPC_HDR failed.\n"));
- return False;
- }
-
- if(!smb_io_rpc_hdr_resp("resp", &hdr_resp, &outgoing_pdu, 0)) {
- DEBUG(0,("create_next_pdu: failed to marshall RPC_HDR_RESP.\n"));
- return False;
- }
-
- if(!smb_io_rpc_hdr_fault("fault", &fault_resp, &outgoing_pdu, 0)) {
- DEBUG(0,("create_next_pdu: failed to marshall RPC_HDR_FAULT.\n"));
- return False;
- }
-
- p->out_data.data_sent_length = 0;
- p->out_data.current_pdu_len = prs_offset(&outgoing_pdu);
- p->out_data.current_pdu_sent = 0;
-
- return True;
-}
-
-/*******************************************************************
- Respond to a pipe bind request.
-*******************************************************************/
-
-static BOOL api_pipe_bind_and_alt_req(pipes_struct *p, prs_struct *pd, enum RPC_PKT_TYPE pkt_type)
-{
- RPC_HDR_BA hdr_ba;
- RPC_HDR_RB hdr_rb;
- RPC_HDR_AUTH auth_info;
- uint16 assoc_gid;
- fstring ack_pipe_name;
- prs_struct out_hdr_ba;
- prs_struct out_auth;
- prs_struct outgoing_rpc;
- int i = 0;
- int auth_len = 0;
-
- p->ntlmssp_auth_requested = False;
-
- DEBUG(5,("api_pipe_bind_req: decode request. %d\n", __LINE__));
-
- /*
- * Try and find the correct pipe name to ensure
- * that this is a pipe name we support.
- */
-
- for (i = 0; api_fd_commands[i].pipe_clnt_name; i++) {
- if (strequal(api_fd_commands[i].pipe_clnt_name, p->name) &&
- api_fd_commands[i].fn != NULL) {
- DEBUG(3,("api_pipe_bind_req: \\PIPE\\%s -> \\PIPE\\%s\n",
- api_fd_commands[i].pipe_clnt_name,
- api_fd_commands[i].pipe_srv_name));
- fstrcpy(p->pipe_srv_name, api_fd_commands[i].pipe_srv_name);
- break;
- }
- }
-
- if (api_fd_commands[i].fn == NULL) {
- DEBUG(3,("api_pipe_bind_req: Unknown pipe name %s in bind request.\n",
- p->name ));
- if(!setup_bind_nak(p, pd))
- return False;
- return True;
- }
-
- /* decode the bind request */
- if(!smb_io_rpc_hdr_rb("", &hdr_rb, pd, 0)) {
- DEBUG(0,("api_pipe_bind_req: unable to unmarshall RPC_HDR_RB struct.\n"));
- return False;
- }
-
- /*
- * Check if this is an authenticated request.
- */
-
- if (p->hdr.auth_len != 0) {
- RPC_AUTH_VERIFIER auth_verifier;
- RPC_AUTH_NTLMSSP_NEG ntlmssp_neg;
-
- /*
- * Decode the authentication verifier.
- */
-
- if(!smb_io_rpc_hdr_auth("", &auth_info, pd, 0)) {
- DEBUG(0,("api_pipe_bind_req: unable to unmarshall RPC_HDR_AUTH struct.\n"));
- return False;
- }
-
- /*
- * We only support NTLMSSP_AUTH_TYPE requests.
- */
-
- if(auth_info.auth_type != NTLMSSP_AUTH_TYPE) {
- DEBUG(0,("api_pipe_bind_req: unknown auth type %x requested.\n",
- auth_info.auth_type ));
- return False;
- }
-
- if(!smb_io_rpc_auth_verifier("", &auth_verifier, pd, 0)) {
- DEBUG(0,("api_pipe_bind_req: unable to unmarshall RPC_HDR_AUTH struct.\n"));
- return False;
- }
-
- if(!strequal(auth_verifier.signature, "NTLMSSP")) {
- DEBUG(0,("api_pipe_bind_req: auth_verifier.signature != NTLMSSP\n"));
- return False;
- }
-
- if(auth_verifier.msg_type != NTLMSSP_NEGOTIATE) {
- DEBUG(0,("api_pipe_bind_req: auth_verifier.msg_type (%d) != NTLMSSP_NEGOTIATE\n",
- auth_verifier.msg_type));
- return False;
- }
-
- if(!smb_io_rpc_auth_ntlmssp_neg("", &ntlmssp_neg, pd, 0)) {
- DEBUG(0,("api_pipe_bind_req: Failed to unmarshall RPC_AUTH_NTLMSSP_NEG.\n"));
- return False;
- }
-
- p->ntlmssp_chal_flags = SMBD_NTLMSSP_NEG_FLAGS;
- p->ntlmssp_auth_requested = True;
- }
-
- switch (pkt_type) {
- case RPC_BINDACK:
- /* name has to be \PIPE\xxxxx */
- fstrcpy(ack_pipe_name, "\\PIPE\\");
- fstrcat(ack_pipe_name, p->pipe_srv_name);
- case RPC_ALTCONTRESP:
- /* secondary address CAN be NULL
- * as the specs says it's ignored.
- * It MUST NULL to have the spoolss working.
- */
- fstrcpy(ack_pipe_name, "");
- break;
- default:
- return False;
- }
-
- DEBUG(5,("api_pipe_bind_req: make response. %d\n", __LINE__));
-
- /*
- * Marshall directly into the outgoing PDU space. We
- * must do this as we need to set to the bind response
- * header and are never sending more than one PDU here.
- */
-
- prs_init( &outgoing_rpc, 0, 4, MARSHALL);
- prs_give_memory( &outgoing_rpc, (char *)p->out_data.current_pdu, sizeof(p->out_data.current_pdu), False);
-
- /*
- * Setup the memory to marshall the ba header, and the
- * auth footers.
- */
-
- if(!prs_init(&out_hdr_ba, 1024, 4, MARSHALL)) {
- DEBUG(0,("api_pipe_bind_req: malloc out_hdr_ba failed.\n"));
- return False;
- }
-
- if(!prs_init(&out_auth, 1024, 4, MARSHALL)) {
- DEBUG(0,("pi_pipe_bind_req: malloc out_auth failed.\n"));
- prs_mem_free(&out_hdr_ba);
- return False;
- }
-
- if (p->ntlmssp_auth_requested)
- assoc_gid = 0x7a77;
- else
- assoc_gid = hdr_rb.bba.assoc_gid;
-
- /*
- * Create the bind response struct.
- */
-
- init_rpc_hdr_ba(&hdr_ba,
- hdr_rb.bba.max_tsize,
- hdr_rb.bba.max_rsize,
- assoc_gid,
- ack_pipe_name,
- 0x1, 0x0, 0x0,
- &hdr_rb.transfer);
-
- /*
- * and marshall it.
- */
-
- if(!smb_io_rpc_hdr_ba("", &hdr_ba, &out_hdr_ba, 0)) {
- DEBUG(0,("api_pipe_bind_req: marshalling of RPC_HDR_BA failed.\n"));
- goto err_exit;
- }
-
- /*
- * Now the authentication.
- */
-
- if (p->ntlmssp_auth_requested) {
- RPC_AUTH_VERIFIER auth_verifier;
- RPC_AUTH_NTLMSSP_CHAL ntlmssp_chal;
-
- generate_random_buffer(p->challenge, 8, False);
-
- /*** Authentication info ***/
-
- init_rpc_hdr_auth(&auth_info, NTLMSSP_AUTH_TYPE, NTLMSSP_AUTH_LEVEL, RPC_HDR_AUTH_LEN, 1);
- if(!smb_io_rpc_hdr_auth("", &auth_info, &out_auth, 0)) {
- DEBUG(0,("api_pipe_bind_req: marshalling of RPC_HDR_AUTH failed.\n"));
- goto err_exit;
- }
-
- /*** NTLMSSP verifier ***/
-
- init_rpc_auth_verifier(&auth_verifier, "NTLMSSP", NTLMSSP_CHALLENGE);
- if(!smb_io_rpc_auth_verifier("", &auth_verifier, &out_auth, 0)) {
- DEBUG(0,("api_pipe_bind_req: marshalling of RPC_AUTH_VERIFIER failed.\n"));
- goto err_exit;
- }
-
- /* NTLMSSP challenge ***/
-
- init_rpc_auth_ntlmssp_chal(&ntlmssp_chal, p->ntlmssp_chal_flags, p->challenge);
- if(!smb_io_rpc_auth_ntlmssp_chal("", &ntlmssp_chal, &out_auth, 0)) {
- DEBUG(0,("api_pipe_bind_req: marshalling of RPC_AUTH_NTLMSSP_CHAL failed.\n"));
- goto err_exit;
- }
-
- /* Auth len in the rpc header doesn't include auth_header. */
- auth_len = prs_offset(&out_auth) - RPC_HDR_AUTH_LEN;
- }
-
- /*
- * Create the header, now we know the length.
- */
-
- init_rpc_hdr(&p->hdr, pkt_type, RPC_FLG_FIRST | RPC_FLG_LAST,
- p->hdr.call_id,
- RPC_HEADER_LEN + prs_offset(&out_hdr_ba) + prs_offset(&out_auth),
- auth_len);
-
- /*
- * Marshall the header into the outgoing PDU.
- */
-
- if(!smb_io_rpc_hdr("", &p->hdr, &outgoing_rpc, 0)) {
- DEBUG(0,("pi_pipe_bind_req: marshalling of RPC_HDR failed.\n"));
- goto err_exit;
- }
-
- /*
- * Now add the RPC_HDR_BA and any auth needed.
- */
-
- if(!prs_append_prs_data( &outgoing_rpc, &out_hdr_ba)) {
- DEBUG(0,("api_pipe_bind_req: append of RPC_HDR_BA failed.\n"));
- goto err_exit;
- }
-
- if(p->ntlmssp_auth_requested && !prs_append_prs_data( &outgoing_rpc, &out_auth)) {
- DEBUG(0,("api_pipe_bind_req: append of auth info failed.\n"));
- goto err_exit;
- }
-
- /*
- * Setup the lengths for the initial reply.
- */
-
- p->out_data.data_sent_length = 0;
- p->out_data.current_pdu_len = prs_offset(&outgoing_rpc);
- p->out_data.current_pdu_sent = 0;
-
- prs_mem_free(&out_hdr_ba);
- prs_mem_free(&out_auth);
-
- return True;
-
- err_exit:
-
- prs_mem_free(&out_hdr_ba);
- prs_mem_free(&out_auth);
- return False;
-}
-
-/*******************************************************************
- Respond to a pipe bind request.
-*******************************************************************/
-
-static BOOL api_pipe_bind_req(pipes_struct *p, prs_struct *pd)
-{
- return api_pipe_bind_and_alt_req(p, pd, RPC_BINDACK);
-}
-
-/*******************************************************************
- Respond to a pipe alter request.
-
- The RPC Alter-Context call is used only by the spoolss pipe
- simply because there is a bug (?) in the MS unmarshalling code
- or in the marshalling code. If it's in the later, then Samba
- have the same bug.
-*******************************************************************/
-
-static BOOL api_pipe_altercontext_req(pipes_struct *p, prs_struct *pd)
-{
- return api_pipe_bind_and_alt_req(p, pd, RPC_ALTCONTRESP);
-}
-
-/****************************************************************************
- Deal with sign & seal processing on an RPC request.
-****************************************************************************/
-
-static BOOL api_pipe_auth_process(pipes_struct *p, prs_struct *rpc_in)
-{
- /*
- * We always negotiate the following two bits....
- */
- BOOL auth_verify = IS_BITS_SET_ALL(p->ntlmssp_chal_flags, NTLMSSP_NEGOTIATE_SIGN);
- BOOL auth_seal = IS_BITS_SET_ALL(p->ntlmssp_chal_flags, NTLMSSP_NEGOTIATE_SEAL);
- int data_len;
- int auth_len;
- uint32 old_offset;
- uint32 crc32 = 0;
-
- auth_len = p->hdr.auth_len;
-
- if ((auth_len != RPC_AUTH_NTLMSSP_CHK_LEN) && auth_verify) {
- DEBUG(0,("api_pipe_auth_process: Incorrect auth_len %d.\n", auth_len ));
- return False;
- }
-
- /*
- * The following is that length of the data we must verify or unseal.
- * This doesn't include the RPC headers or the auth_len or the RPC_HDR_AUTH_LEN
- * preceeding the auth_data.
- */
-
- data_len = p->hdr.frag_len - RPC_HEADER_LEN - RPC_HDR_REQ_LEN -
- (auth_verify ? RPC_HDR_AUTH_LEN : 0) - auth_len;
-
- DEBUG(5,("api_pipe_auth_process: sign: %s seal: %s data %d auth %d\n",
- BOOLSTR(auth_verify), BOOLSTR(auth_seal), data_len, auth_len));
-
- if (auth_seal) {
- char *data = prs_data_p(rpc_in) + RPC_HEADER_LEN + RPC_HDR_REQ_LEN;
- NTLMSSPcalc_p(p, (uchar*)data, data_len);
- crc32 = crc32_calc_buffer(data, data_len);
- }
-
- old_offset = prs_offset(rpc_in);
-
- if (auth_seal || auth_verify) {
- RPC_HDR_AUTH auth_info;
-
- if(!prs_set_offset(rpc_in, old_offset + data_len)) {
- DEBUG(0,("api_pipe_auth_process: cannot move offset to %u.\n",
- (unsigned int)old_offset + data_len ));
- return False;
- }
-
- if(!smb_io_rpc_hdr_auth("hdr_auth", &auth_info, rpc_in, 0)) {
- DEBUG(0,("api_pipe_auth_process: failed to unmarshall RPC_HDR_AUTH.\n"));
- return False;
- }
- }
-
- if (auth_verify) {
- RPC_AUTH_NTLMSSP_CHK ntlmssp_chk;
- char *req_data = prs_data_p(rpc_in) + prs_offset(rpc_in) + 4;
-
- DEBUG(5,("api_pipe_auth_process: auth %d\n", prs_offset(rpc_in) + 4));
-
- /*
- * Ensure we have RPC_AUTH_NTLMSSP_CHK_LEN - 4 more bytes in the
- * incoming buffer.
- */
- if(prs_mem_get(rpc_in, RPC_AUTH_NTLMSSP_CHK_LEN - 4) == NULL) {
- DEBUG(0,("api_pipe_auth_process: missing %d bytes in buffer.\n",
- RPC_AUTH_NTLMSSP_CHK_LEN - 4 ));
- return False;
- }
-
- NTLMSSPcalc_p(p, (uchar*)req_data, RPC_AUTH_NTLMSSP_CHK_LEN - 4);
- if(!smb_io_rpc_auth_ntlmssp_chk("auth_sign", &ntlmssp_chk, rpc_in, 0)) {
- DEBUG(0,("api_pipe_auth_process: failed to unmarshall RPC_AUTH_NTLMSSP_CHK.\n"));
- return False;
- }
-
- if (!rpc_auth_ntlmssp_chk(&ntlmssp_chk, crc32, p->ntlmssp_seq_num)) {
- DEBUG(0,("api_pipe_auth_process: NTLMSSP check failed.\n"));
- return False;
- }
- }
-
- /*
- * Return the current pointer to the data offset.
- */
-
- if(!prs_set_offset(rpc_in, old_offset)) {
- DEBUG(0,("api_pipe_auth_process: failed to set offset back to %u\n",
- (unsigned int)old_offset ));
- return False;
- }
-
- return True;
-}
-
-/****************************************************************************
- Find the correct RPC function to call for this request.
- If the pipe is authenticated then become the correct UNIX user
- before doing the call.
-****************************************************************************/
-
-static BOOL api_pipe_request(pipes_struct *p, prs_struct *rpc_in)
-{
- int i = 0;
- BOOL ret = False;
- BOOL changed_user_id = False;
-
- if (p->ntlmssp_auth_validated) {
- if (!api_pipe_auth_process(p, rpc_in))
- return False;
-
- if(!become_authenticated_pipe_user(p))
- return False;
-
- changed_user_id = True;
- }
-
- for (i = 0; api_fd_commands[i].pipe_clnt_name; i++) {
- if (strequal(api_fd_commands[i].pipe_clnt_name, p->name) &&
- api_fd_commands[i].fn != NULL) {
- DEBUG(3,("Doing \\PIPE\\%s\n", api_fd_commands[i].pipe_clnt_name));
- ret = api_fd_commands[i].fn(p, rpc_in);
- }
- }
-
- if(changed_user_id)
- unbecome_authenticated_pipe_user(p);
-
- return ret;
-}
-
-/****************************************************************************
- This function is the entry point to processing a DCE/RPC request.
- All the data for the request (including RPC headers and authentication
- verifiers) must be linearized in the input_data buffer, with a length
- of data_len.
-
- The output is placed into the pipes_struct, and handed back to the
- client on demand.
-****************************************************************************/
-
-BOOL rpc_command(pipes_struct *p, char *input_data, int data_len)
-{
- prs_struct rpc_in;
- BOOL reply = False;
-
- if (input_data == NULL)
- return False;
-
- prs_init(&rpc_in, 0, 4, UNMARSHALL);
-
- /*
- * Hand the data to the prs_struct, but don't let
- * it own it.
- */
- prs_give_memory( &rpc_in, input_data, (uint32)data_len, False);
-
- /* Unmarshall the rpc header */
- if(!smb_io_rpc_hdr("", &p->hdr, &rpc_in, 0)) {
- DEBUG(0,("rpc_command: failed to unmarshall RPC_HDR.\n"));
- return False;
- }
-
- /*
- * Create the response data buffer.
- */
-
- if(!pipe_init_outgoing_data(&p->out_data)) {
- DEBUG(0,("rpc_command: failed to unmarshall RPC_HDR.\n"));
- return False;
- }
-
- switch (p->hdr.pkt_type) {
- case RPC_BIND:
- reply = api_pipe_bind_req(p, &rpc_in);
- break;
- case RPC_ALTCONT:
- reply = api_pipe_altercontext_req(p, &rpc_in);
- break;
- case RPC_REQUEST:
- if (p->ntlmssp_auth_requested && !p->ntlmssp_auth_validated) {
-
- /* authentication _was_ requested
- and it failed. sorry, no deal!
- */
- DEBUG(0,("rpc_command: RPC request received on pipe %s where \
-authentication failed. Denying the request.\n", p->name));
- reply = False;
- } else {
- /* read the RPC request header */
- if(!smb_io_rpc_hdr_req("req", &p->hdr_req, &rpc_in, 0)) {
- DEBUG(0,("rpc_command: failed to unmarshall RPC_HDR_REQ.\n"));
- return False;
- }
- reply = api_pipe_request(p, &rpc_in);
- }
- break;
- case RPC_BINDRESP: /* not the real name! */
- reply = api_pipe_bind_auth_resp(p, &rpc_in);
- break;
- }
-
- if (!reply) {
- DEBUG(3,("rpc_command: DCE/RPC fault sent on pipe %s\n", p->pipe_srv_name));
- reply = setup_fault_pdu(p);
- }
-
- return reply;
-}
-
-
-/*******************************************************************
- Calls the underlying RPC function for a named pipe.
- ********************************************************************/
-
-BOOL api_rpcTNP(pipes_struct *p, char *rpc_name, struct api_struct *api_rpc_cmds,
- prs_struct *rpc_in)
-{
- int fn_num;
-
- /* interpret the command */
- DEBUG(4,("api_rpcTNP: %s op 0x%x - ", rpc_name, p->hdr_req.opnum));
-
- for (fn_num = 0; api_rpc_cmds[fn_num].name; fn_num++) {
- if (api_rpc_cmds[fn_num].opnum == p->hdr_req.opnum && api_rpc_cmds[fn_num].fn != NULL) {
- DEBUG(3,("api_rpc_command: %s\n", api_rpc_cmds[fn_num].name));
- break;
- }
- }
-
- if (api_rpc_cmds[fn_num].name == NULL) {
- DEBUG(4, ("unknown\n"));
- return False;
- }
-
- /* do the actual command */
- if(!api_rpc_cmds[fn_num].fn(p->vuid, rpc_in, &p->out_data.rdata)) {
- DEBUG(0,("api_rpcTNP: %s: failed.\n", rpc_name));
- prs_mem_free(&p->out_data.rdata);
- return False;
- }
-
- DEBUG(5,("api_rpcTNP: called %s successfully\n", rpc_name));
-
- return True;
-}