/*
* Unix SMB/CIFS implementation.
* 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,
- * Copyright (C) Jim McDonough <jmcd@us.ibm.com> 2003.
+ * Almost completely rewritten by (C) Jeremy Allison 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
- * the Free Software Foundation; either version 2 of the License, or
+ * the Free Software Foundation; either version 3 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* 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.
+ * along with this program; if not, see <http://www.gnu.org/licenses/>.
*/
/* this module apparently provides an implementation of DCE/RPC over a
* 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"
+extern struct pipe_id_info pipe_names[];
+extern struct current_user current_user;
+
#undef DBGC_CLASS
#define DBGC_CLASS DBGC_RPC_SRV
-/*************************************************************
- HACK Alert!
- We need to transfer the session key from one rpc bind to the
- next. This is the way the netlogon schannel works.
-**************************************************************/
-struct dcinfo last_dcinfo;
-
-static void NTLMSSPcalc_p( pipes_struct *p, unsigned char *data, int len)
+static void free_pipe_ntlmssp_auth_data(struct pipe_auth_data *auth)
{
- unsigned char *hash = p->ntlmssp_hash;
- unsigned char index_i = hash[256];
- unsigned char index_j = hash[257];
- int ind;
+ AUTH_NTLMSSP_STATE *a = auth->a_u.auth_ntlmssp_state;
- 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];
+ if (a) {
+ auth_ntlmssp_end(&a);
}
+ auth->a_u.auth_ntlmssp_state = NULL;
+}
- hash[256] = index_i;
- hash[257] = index_j;
+static DATA_BLOB generic_session_key(void)
+{
+ return data_blob("SystemLibraryDTC", 16);
}
/*******************************************************************
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.
+ Handle NTLMSSP.
********************************************************************/
-BOOL create_next_pdu(pipes_struct *p)
+static bool create_next_pdu_ntlmssp(pipes_struct *p)
{
RPC_HDR_RESP hdr_resp;
- BOOL auth_verify = ((p->ntlmssp_chal_flags & NTLMSSP_NEGOTIATE_SIGN) != 0);
- BOOL auth_seal = ((p->ntlmssp_chal_flags & NTLMSSP_NEGOTIATE_SEAL) != 0);
uint32 ss_padding_len = 0;
- uint32 data_len;
uint32 data_space_available;
uint32 data_len_left;
+ uint32 data_len;
prs_struct outgoing_pdu;
- uint32 data_pos;
+ NTSTATUS status;
+ DATA_BLOB auth_blob;
+ RPC_HDR_AUTH auth_info;
+ uint8 auth_type, auth_level;
+ AUTH_NTLMSSP_STATE *a = p->auth.a_u.auth_ntlmssp_state;
/*
* If we're in the fault state, keep returning fault PDU's until
*/
if(p->fault_state) {
- setup_fault_pdu(p, NT_STATUS(0x1c010002));
+ setup_fault_pdu(p, NT_STATUS(DCERPC_FAULT_OP_RNG_ERROR));
return True;
}
* Work out how much we can fit in a single 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);
- } else if(p->netsec_auth_validated) {
- data_space_available -= (RPC_HDR_AUTH_LEN + RPC_AUTH_NETSEC_SIGN_OR_SEAL_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;
/*
*/
if(!data_len_left) {
- DEBUG(0,("create_next_pdu: no data left to send !\n"));
+ DEBUG(0,("create_next_pdu_ntlmssp: no data left to send !\n"));
return False;
}
+ data_space_available = sizeof(p->out_data.current_pdu) - RPC_HEADER_LEN - RPC_HDR_RESP_LEN -
+ RPC_HDR_AUTH_LEN - NTLMSSP_SIG_SIZE;
+
+ /*
+ * The amount we send is the minimum of the available
+ * space and the amount left to send.
+ */
+
data_len = MIN(data_len_left, data_space_available);
/*
if(p->out_data.data_sent_length + data_len >= prs_offset(&p->out_data.rdata)) {
p->hdr.flags |= RPC_FLG_LAST;
- if ((auth_seal || auth_verify) && (data_len_left % 8)) {
+ if (data_len_left % 8) {
ss_padding_len = 8 - (data_len_left % 8);
- DEBUG(10,("create_next_pdu: adding sign/seal padding of %u\n",
+ DEBUG(10,("create_next_pdu_ntlmssp: adding sign/seal padding of %u\n",
ss_padding_len ));
}
}
* Set up the header lengths.
*/
- if (p->ntlmssp_auth_validated) {
- p->hdr.frag_len = RPC_HEADER_LEN + RPC_HDR_RESP_LEN +
- data_len + ss_padding_len +
- RPC_HDR_AUTH_LEN + RPC_AUTH_NTLMSSP_CHK_LEN;
- p->hdr.auth_len = RPC_AUTH_NTLMSSP_CHK_LEN;
- } else if (p->netsec_auth_validated) {
- p->hdr.frag_len = RPC_HEADER_LEN + RPC_HDR_RESP_LEN +
+ p->hdr.frag_len = RPC_HEADER_LEN + RPC_HDR_RESP_LEN +
data_len + ss_padding_len +
- RPC_HDR_AUTH_LEN + RPC_AUTH_NETSEC_SIGN_OR_SEAL_CHK_LEN;
- p->hdr.auth_len = RPC_AUTH_NETSEC_SIGN_OR_SEAL_CHK_LEN;
- } else {
- p->hdr.frag_len = RPC_HEADER_LEN + RPC_HDR_RESP_LEN + data_len;
- p->hdr.auth_len = 0;
- }
+ RPC_HDR_AUTH_LEN + NTLMSSP_SIG_SIZE;
+ p->hdr.auth_len = NTLMSSP_SIG_SIZE;
+
/*
* Init the parse struct to point at the outgoing
/* 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"));
+ DEBUG(0,("create_next_pdu_ntlmssp: failed to marshall RPC_HDR.\n"));
prs_mem_free(&outgoing_pdu);
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"));
+ DEBUG(0,("create_next_pdu_ntlmssp: failed to marshall RPC_HDR_RESP.\n"));
prs_mem_free(&outgoing_pdu);
return False;
}
- /* Store the current offset. */
- data_pos = prs_offset(&outgoing_pdu);
-
/* Copy the data into the PDU. */
if(!prs_append_some_prs_data(&outgoing_pdu, &p->out_data.rdata, p->out_data.data_sent_length, data_len)) {
- DEBUG(0,("create_next_pdu: failed to copy %u bytes of data.\n", (unsigned int)data_len));
+ DEBUG(0,("create_next_pdu_ntlmssp: failed to copy %u bytes of data.\n", (unsigned int)data_len));
prs_mem_free(&outgoing_pdu);
return False;
}
/* Copy the sign/seal padding data. */
if (ss_padding_len) {
char pad[8];
+
memset(pad, '\0', 8);
if (!prs_copy_data_in(&outgoing_pdu, pad, ss_padding_len)) {
- DEBUG(0,("create_next_pdu: failed to add %u bytes of pad data.\n", (unsigned int)ss_padding_len));
+ DEBUG(0,("create_next_pdu_ntlmssp: failed to add %u bytes of pad data.\n",
+ (unsigned int)ss_padding_len));
prs_mem_free(&outgoing_pdu);
return False;
}
}
- if (p->ntlmssp_auth_validated) {
- /*
- * NTLMSSP processing. Mutually exclusive with Schannel.
- */
- uint32 crc32 = 0;
- char *data;
-
- DEBUG(5,("create_next_pdu: sign: %s seal: %s data %d auth %d\n",
- BOOLSTR(auth_verify), BOOLSTR(auth_seal), data_len + ss_padding_len, p->hdr.auth_len));
-
- /*
- * Set data to point to where we copied the data into.
- */
- data = prs_data_p(&outgoing_pdu) + data_pos;
+ /* Now write out the auth header and null blob. */
+ if (p->auth.auth_type == PIPE_AUTH_TYPE_NTLMSSP) {
+ auth_type = RPC_NTLMSSP_AUTH_TYPE;
+ } else {
+ auth_type = RPC_SPNEGO_AUTH_TYPE;
+ }
+ if (p->auth.auth_level == PIPE_AUTH_LEVEL_PRIVACY) {
+ auth_level = RPC_AUTH_LEVEL_PRIVACY;
+ } else {
+ auth_level = RPC_AUTH_LEVEL_INTEGRITY;
+ }
- if (auth_seal) {
- crc32 = crc32_calc_buffer(data, data_len + ss_padding_len);
- NTLMSSPcalc_p(p, (uchar*)data, data_len + ss_padding_len);
- }
+ init_rpc_hdr_auth(&auth_info, auth_type, auth_level, ss_padding_len, 1 /* context id. */);
+ if(!smb_io_rpc_hdr_auth("hdr_auth", &auth_info, &outgoing_pdu, 0)) {
+ DEBUG(0,("create_next_pdu_ntlmssp: failed to marshall RPC_HDR_AUTH.\n"));
+ prs_mem_free(&outgoing_pdu);
+ return False;
+ }
- if (auth_seal || auth_verify) {
- RPC_HDR_AUTH auth_info;
+ /* Generate the sign blob. */
- init_rpc_hdr_auth(&auth_info, NTLMSSP_AUTH_TYPE,
- auth_seal ? RPC_PIPE_AUTH_SEAL_LEVEL : RPC_PIPE_AUTH_SIGN_LEVEL,
- (auth_verify ? ss_padding_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"));
+ switch (p->auth.auth_level) {
+ case PIPE_AUTH_LEVEL_PRIVACY:
+ /* Data portion is encrypted. */
+ status = ntlmssp_seal_packet(a->ntlmssp_state,
+ (unsigned char *)prs_data_p(&outgoing_pdu) + RPC_HEADER_LEN + RPC_HDR_RESP_LEN,
+ data_len + ss_padding_len,
+ (unsigned char *)prs_data_p(&outgoing_pdu),
+ (size_t)prs_offset(&outgoing_pdu),
+ &auth_blob);
+ if (!NT_STATUS_IS_OK(status)) {
+ data_blob_free(&auth_blob);
prs_mem_free(&outgoing_pdu);
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"));
+ break;
+ case PIPE_AUTH_LEVEL_INTEGRITY:
+ /* Data is signed. */
+ status = ntlmssp_sign_packet(a->ntlmssp_state,
+ (unsigned char *)prs_data_p(&outgoing_pdu) + RPC_HEADER_LEN + RPC_HDR_RESP_LEN,
+ data_len + ss_padding_len,
+ (unsigned char *)prs_data_p(&outgoing_pdu),
+ (size_t)prs_offset(&outgoing_pdu),
+ &auth_blob);
+ if (!NT_STATUS_IS_OK(status)) {
+ data_blob_free(&auth_blob);
prs_mem_free(&outgoing_pdu);
return False;
}
- NTLMSSPcalc_p(p, (uchar*)auth_data, RPC_AUTH_NTLMSSP_CHK_LEN - 4);
- }
- } else if (p->netsec_auth_validated) {
- /*
- * Schannel processing. Mutually exclusive with NTLMSSP.
- */
- int auth_type, auth_level;
- char *data;
- RPC_HDR_AUTH auth_info;
-
- RPC_AUTH_NETSEC_CHK verf;
- prs_struct rverf;
- prs_struct rauth;
-
- data = prs_data_p(&outgoing_pdu) + data_pos;
- /* Check it's the type of reply we were expecting to decode */
-
- get_auth_type_level(p->netsec_auth.auth_flags, &auth_type, &auth_level);
- init_rpc_hdr_auth(&auth_info, auth_type, auth_level,
- ss_padding_len, 1);
-
- 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"));
+ break;
+ default:
prs_mem_free(&outgoing_pdu);
return False;
- }
-
- prs_init(&rverf, 0, p->mem_ctx, MARSHALL);
- prs_init(&rauth, 0, p->mem_ctx, MARSHALL);
-
- netsec_encode(&p->netsec_auth,
- p->netsec_auth.auth_flags,
- SENDER_IS_ACCEPTOR,
- &verf, data, data_len + ss_padding_len);
-
- smb_io_rpc_auth_netsec_chk("", RPC_AUTH_NETSEC_SIGN_OR_SEAL_CHK_LEN,
- &verf, &outgoing_pdu, 0);
+ }
- p->netsec_auth.seq_num++;
+ /* Append the auth blob. */
+ if (!prs_copy_data_in(&outgoing_pdu, (char *)auth_blob.data, NTLMSSP_SIG_SIZE)) {
+ DEBUG(0,("create_next_pdu_ntlmssp: failed to add %u bytes auth blob.\n",
+ (unsigned int)NTLMSSP_SIG_SIZE));
+ data_blob_free(&auth_blob);
+ prs_mem_free(&outgoing_pdu);
+ return False;
}
+ data_blob_free(&auth_blob);
+
/*
* Setup the counts for this PDU.
*/
}
/*******************************************************************
- 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.
- *******************************************************************/
+ Generate the next PDU to be returned from the data in p->rdata.
+ Return an schannel authenticated fragment.
+ ********************************************************************/
-static BOOL api_pipe_ntlmssp_verify(pipes_struct *p, RPC_AUTH_NTLMSSP_RESP *ntlmssp_resp)
+static bool create_next_pdu_schannel(pipes_struct *p)
{
- uchar lm_owf[24];
- uchar nt_owf[128];
- int nt_pw_len;
- int lm_pw_len;
- fstring user_name;
- fstring domain;
- fstring wks;
+ RPC_HDR_RESP hdr_resp;
+ uint32 ss_padding_len = 0;
+ uint32 data_len;
+ uint32 data_space_available;
+ uint32 data_len_left;
+ prs_struct outgoing_pdu;
+ uint32 data_pos;
- NTSTATUS nt_status;
+ /*
+ * If we're in the fault state, keep returning fault PDU's until
+ * the pipe gets closed. JRA.
+ */
- struct auth_context *auth_context = NULL;
- auth_usersupplied_info *user_info = NULL;
- auth_serversupplied_info *server_info = NULL;
+ if(p->fault_state) {
+ setup_fault_pdu(p, NT_STATUS(DCERPC_FAULT_OP_RNG_ERROR));
+ return True;
+ }
- DEBUG(5,("api_pipe_ntlmssp_verify: checking user details\n"));
+ memset((char *)&hdr_resp, '\0', sizeof(hdr_resp));
- memset(p->user_name, '\0', sizeof(p->user_name));
- memset(p->pipe_user_name, '\0', sizeof(p->pipe_user_name));
- memset(p->domain, '\0', sizeof(p->domain));
- memset(p->wks, '\0', sizeof(p->wks));
+ /* Change the incoming request header to a response. */
+ p->hdr.pkt_type = RPC_RESPONSE;
- /* Set up for non-authenticated user. */
- delete_nt_token(&p->pipe_user.nt_user_token);
- p->pipe_user.ngroups = 0;
- SAFE_FREE( p->pipe_user.groups);
+ /* Set up rpc header flags. */
+ if (p->out_data.data_sent_length == 0) {
+ p->hdr.flags = RPC_FLG_FIRST;
+ } else {
+ p->hdr.flags = 0;
+ }
- /*
- * Setup an empty password for a guest user.
+ /*
+ * Work out how much we can fit in a single PDU.
*/
+ data_len_left = prs_offset(&p->out_data.rdata) - p->out_data.data_sent_length;
+
/*
- * We always negotiate UNICODE.
+ * Ensure there really is data left to send.
*/
- if (p->ntlmssp_chal_flags & NTLMSSP_NEGOTIATE_UNICODE) {
- rpcstr_pull(user_name, ntlmssp_resp->user, sizeof(fstring), ntlmssp_resp->hdr_usr.str_str_len*2, 0 );
- rpcstr_pull(domain, ntlmssp_resp->domain, sizeof(fstring), ntlmssp_resp->hdr_domain.str_str_len*2, 0);
- rpcstr_pull(wks, ntlmssp_resp->wks, sizeof(fstring), ntlmssp_resp->hdr_wks.str_str_len*2, 0);
- } else {
- pull_ascii_fstring(user_name, ntlmssp_resp->user);
- pull_ascii_fstring(domain, ntlmssp_resp->domain);
- pull_ascii_fstring(wks, ntlmssp_resp->wks);
+ if(!data_len_left) {
+ DEBUG(0,("create_next_pdu_schannel: no data left to send !\n"));
+ return False;
}
- DEBUG(5,("user: %s domain: %s wks: %s\n", user_name, domain, wks));
+ data_space_available = sizeof(p->out_data.current_pdu) - RPC_HEADER_LEN - RPC_HDR_RESP_LEN -
+ RPC_HDR_AUTH_LEN - RPC_AUTH_SCHANNEL_SIGN_OR_SEAL_CHK_LEN;
- nt_pw_len = MIN(sizeof(nt_owf), ntlmssp_resp->hdr_nt_resp.str_str_len);
- lm_pw_len = MIN(sizeof(lm_owf), ntlmssp_resp->hdr_lm_resp.str_str_len);
-
- memcpy(lm_owf, ntlmssp_resp->lm_resp, sizeof(lm_owf));
- memcpy(nt_owf, ntlmssp_resp->nt_resp, nt_pw_len);
+ /*
+ * The amount we send is the minimum of the available
+ * space and the amount left to send.
+ */
-#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, nt_pw_len);
- dump_data(100, (char *)p->challenge, 8);
-#endif
+ data_len = MIN(data_len_left, data_space_available);
/*
- * Allow guest access. Patch from Shirish Kalele <kalele@veritas.com>.
+ * Set up the alloc hint. This should be the data left to
+ * send.
*/
- if (*user_name) {
-
- /*
- * Do the length checking only if user is not NULL.
- */
+ hdr_resp.alloc_hint = data_len_left;
- 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;
+ /*
+ * 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;
+ if (data_len_left % 8) {
+ ss_padding_len = 8 - (data_len_left % 8);
+ DEBUG(10,("create_next_pdu_schannel: adding sign/seal padding of %u\n",
+ ss_padding_len ));
+ }
}
-
- make_auth_context_fixed(&auth_context, (uchar*)p->challenge);
- if (!make_user_info_netlogon_network(&user_info,
- user_name, domain, wks,
- lm_owf, lm_pw_len,
- nt_owf, nt_pw_len)) {
- DEBUG(0,("make_user_info_netlogon_network failed! Failing authenticaion.\n"));
- return False;
- }
-
- nt_status = auth_context->check_ntlm_password(auth_context, user_info, &server_info);
-
- (auth_context->free)(&auth_context);
- free_user_info(&user_info);
-
- p->ntlmssp_auth_validated = NT_STATUS_IS_OK(nt_status);
-
- if (!p->ntlmssp_auth_validated) {
- DEBUG(1,("api_pipe_ntlmssp_verify: User [%s]\\[%s] from machine %s \
-failed authentication on named pipe %s.\n", domain, user_name, wks, p->name ));
- free_server_info(&server_info);
- return False;
- }
+ p->hdr.frag_len = RPC_HEADER_LEN + RPC_HDR_RESP_LEN + data_len + ss_padding_len +
+ RPC_HDR_AUTH_LEN + RPC_AUTH_SCHANNEL_SIGN_OR_SEAL_CHK_LEN;
+ p->hdr.auth_len = RPC_AUTH_SCHANNEL_SIGN_OR_SEAL_CHK_LEN;
/*
- * Set up the sign/seal data.
+ * Init the parse struct to point at the outgoing
+ * data.
*/
- if (server_info->lm_session_key.length != 16) {
- DEBUG(1,("api_pipe_ntlmssp_verify: User [%s]\\[%s] from machine %s \
-succeeded authentication on named pipe %s, but session key was of incorrect length [%u].\n",
- domain, user_name, wks, p->name, server_info->lm_session_key.length));
- free_server_info(&server_info);
- return False;
- } else {
- uchar p24[24];
- NTLMSSPOWFencrypt(server_info->lm_session_key.data, lm_owf, p24);
- {
- unsigned char j = 0;
- int ind;
-
- unsigned char k2[8];
+ prs_init( &outgoing_pdu, 0, p->mem_ctx, MARSHALL);
+ prs_give_memory( &outgoing_pdu, (char *)p->out_data.current_pdu, sizeof(p->out_data.current_pdu), False);
- memcpy(k2, p24, 5);
- k2[5] = 0xe5;
- k2[6] = 0x38;
- k2[7] = 0xb0;
+ /* Store the header in the data stream. */
+ if(!smb_io_rpc_hdr("hdr", &p->hdr, &outgoing_pdu, 0)) {
+ DEBUG(0,("create_next_pdu_schannel: failed to marshall RPC_HDR.\n"));
+ prs_mem_free(&outgoing_pdu);
+ return False;
+ }
- for (ind = 0; ind < 256; ind++)
- p->ntlmssp_hash[ind] = (unsigned char)ind;
+ if(!smb_io_rpc_hdr_resp("resp", &hdr_resp, &outgoing_pdu, 0)) {
+ DEBUG(0,("create_next_pdu_schannel: failed to marshall RPC_HDR_RESP.\n"));
+ prs_mem_free(&outgoing_pdu);
+ return False;
+ }
- for( ind = 0; ind < 256; ind++) {
- unsigned char tc;
+ /* Store the current offset. */
+ data_pos = prs_offset(&outgoing_pdu);
- j += (p->ntlmssp_hash[ind] + k2[ind%8]);
+ /* Copy the data into the PDU. */
- tc = p->ntlmssp_hash[ind];
- p->ntlmssp_hash[ind] = p->ntlmssp_hash[j];
- p->ntlmssp_hash[j] = tc;
- }
+ if(!prs_append_some_prs_data(&outgoing_pdu, &p->out_data.rdata, p->out_data.data_sent_length, data_len)) {
+ DEBUG(0,("create_next_pdu_schannel: failed to copy %u bytes of data.\n", (unsigned int)data_len));
+ prs_mem_free(&outgoing_pdu);
+ return False;
+ }
- p->ntlmssp_hash[256] = 0;
- p->ntlmssp_hash[257] = 0;
+ /* Copy the sign/seal padding data. */
+ if (ss_padding_len) {
+ char pad[8];
+ memset(pad, '\0', 8);
+ if (!prs_copy_data_in(&outgoing_pdu, pad, ss_padding_len)) {
+ DEBUG(0,("create_next_pdu_schannel: failed to add %u bytes of pad data.\n", (unsigned int)ss_padding_len));
+ prs_mem_free(&outgoing_pdu);
+ return False;
}
+ }
- dump_data_pw("NTLMSSP hash (v1)\n", p->ntlmssp_hash,
- sizeof(p->ntlmssp_hash));
-
-/* NTLMSSPhash(p->ntlmssp_hash, p24); */
- p->ntlmssp_seq_num = 0;
+ {
+ /*
+ * Schannel processing.
+ */
+ char *data;
+ RPC_HDR_AUTH auth_info;
+ RPC_AUTH_SCHANNEL_CHK verf;
- }
+ data = prs_data_p(&outgoing_pdu) + data_pos;
+ /* Check it's the type of reply we were expecting to decode */
- fstrcpy(p->user_name, user_name);
- fstrcpy(p->pipe_user_name, server_info->unix_name);
- fstrcpy(p->domain, domain);
- fstrcpy(p->wks, wks);
+ init_rpc_hdr_auth(&auth_info,
+ RPC_SCHANNEL_AUTH_TYPE,
+ p->auth.auth_level == PIPE_AUTH_LEVEL_PRIVACY ?
+ RPC_AUTH_LEVEL_PRIVACY : RPC_AUTH_LEVEL_INTEGRITY,
+ ss_padding_len, 1);
- /*
- * Store the UNIX credential data (uid/gid pair) in the pipe structure.
- */
+ if(!smb_io_rpc_hdr_auth("hdr_auth", &auth_info, &outgoing_pdu, 0)) {
+ DEBUG(0,("create_next_pdu_schannel: failed to marshall RPC_HDR_AUTH.\n"));
+ prs_mem_free(&outgoing_pdu);
+ return False;
+ }
- if (p->session_key.data) {
- data_blob_free(&p->session_key);
- }
- p->session_key = data_blob(server_info->lm_session_key.data, server_info->lm_session_key.length);
+ schannel_encode(p->auth.a_u.schannel_auth,
+ p->auth.auth_level,
+ SENDER_IS_ACCEPTOR,
+ &verf, data, data_len + ss_padding_len);
- p->pipe_user.uid = server_info->uid;
- p->pipe_user.gid = server_info->gid;
-
- p->pipe_user.ngroups = server_info->n_groups;
- if (p->pipe_user.ngroups) {
- if (!(p->pipe_user.groups = memdup(server_info->groups, sizeof(gid_t) * p->pipe_user.ngroups))) {
- DEBUG(0,("failed to memdup group list to p->pipe_user.groups\n"));
- free_server_info(&server_info);
+ if (!smb_io_rpc_auth_schannel_chk("", RPC_AUTH_SCHANNEL_SIGN_OR_SEAL_CHK_LEN,
+ &verf, &outgoing_pdu, 0)) {
+ prs_mem_free(&outgoing_pdu);
return False;
}
- }
- if (server_info->ptok)
- p->pipe_user.nt_user_token = dup_nt_token(server_info->ptok);
- else {
- DEBUG(1,("Error: Authmodule failed to provide nt_user_token\n"));
- p->pipe_user.nt_user_token = NULL;
- free_server_info(&server_info);
- return False;
+ p->auth.a_u.schannel_auth->seq_num++;
}
- p->ntlmssp_auth_validated = True;
+ /*
+ * 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;
- free_server_info(&server_info);
+ prs_mem_free(&outgoing_pdu);
return True;
}
/*******************************************************************
- The switch table for the pipe names and the functions to handle them.
- *******************************************************************/
+ Generate the next PDU to be returned from the data in p->rdata.
+ No authentication done.
+********************************************************************/
-struct rpc_table
+static bool create_next_pdu_noauth(pipes_struct *p)
{
- struct
- {
- const char *clnt;
- const char *srv;
- } pipe;
- struct api_struct *cmds;
- int n_cmds;
-};
+ RPC_HDR_RESP hdr_resp;
+ uint32 data_len;
+ uint32 data_space_available;
+ uint32 data_len_left;
+ prs_struct outgoing_pdu;
-static struct rpc_table *rpc_lookup;
-static int rpc_lookup_size;
+ /*
+ * If we're in the fault state, keep returning fault PDU's until
+ * the pipe gets closed. JRA.
+ */
-/*******************************************************************
- This is the client reply to our challenge for an authenticated
- bind request. The challenge we sent is in p->challenge.
-*******************************************************************/
+ if(p->fault_state) {
+ setup_fault_pdu(p, NT_STATUS(DCERPC_FAULT_OP_RNG_ERROR));
+ return True;
+ }
-BOOL api_pipe_bind_auth_resp(pipes_struct *p, prs_struct *rpc_in_p)
-{
- RPC_HDR_AUTHA autha_info;
- RPC_AUTH_VERIFIER auth_verifier;
- RPC_AUTH_NTLMSSP_RESP ntlmssp_resp;
+ memset((char *)&hdr_resp, '\0', sizeof(hdr_resp));
- DEBUG(5,("api_pipe_bind_auth_resp: decode request. %d\n", __LINE__));
+ /* Change the incoming request header to a response. */
+ p->hdr.pkt_type = RPC_RESPONSE;
- if (p->hdr.auth_len == 0) {
- DEBUG(0,("api_pipe_bind_auth_resp: No auth field sent !\n"));
- return False;
+ /* Set up rpc header flags. */
+ if (p->out_data.data_sent_length == 0) {
+ p->hdr.flags = RPC_FLG_FIRST;
+ } else {
+ p->hdr.flags = 0;
}
/*
- * Decode the authentication verifier response.
+ * Work out how much we can fit in a single PDU.
*/
- if(!smb_io_rpc_hdr_autha("", &autha_info, rpc_in_p, 0)) {
- DEBUG(0,("api_pipe_bind_auth_resp: unmarshall of RPC_HDR_AUTHA failed.\n"));
- return False;
- }
+ data_len_left = prs_offset(&p->out_data.rdata) - p->out_data.data_sent_length;
- if (autha_info.auth_type != NTLMSSP_AUTH_TYPE || autha_info.auth_level != RPC_PIPE_AUTH_SEAL_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;
- }
+ /*
+ * Ensure there really is data left to send.
+ */
- if(!smb_io_rpc_auth_verifier("", &auth_verifier, rpc_in_p, 0)) {
- DEBUG(0,("api_pipe_bind_auth_resp: unmarshall of RPC_AUTH_VERIFIER failed.\n"));
+ if(!data_len_left) {
+ DEBUG(0,("create_next_pdu_noath: no data left to send !\n"));
return False;
}
+ data_space_available = sizeof(p->out_data.current_pdu) - RPC_HEADER_LEN - RPC_HDR_RESP_LEN;
+
+ /*
+ * The amount we send is the minimum of the available
+ * space and the amount left to send.
+ */
+
+ 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;
+
+ /*
+ * 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;
+ }
+
/*
- * Ensure this is a NTLMSSP_AUTH packet type.
+ * Set up the header lengths.
*/
- if (!rpc_auth_verifier_chk(&auth_verifier, "NTLMSSP", NTLMSSP_AUTH)) {
- DEBUG(0,("api_pipe_bind_auth_resp: rpc_auth_verifier_chk failed.\n"));
+ p->hdr.frag_len = RPC_HEADER_LEN + RPC_HDR_RESP_LEN + data_len;
+ p->hdr.auth_len = 0;
+
+ /*
+ * Init the parse struct to point at the outgoing
+ * data.
+ */
+
+ prs_init( &outgoing_pdu, 0, p->mem_ctx, 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_noath: failed to marshall RPC_HDR.\n"));
+ prs_mem_free(&outgoing_pdu);
return False;
}
- if(!smb_io_rpc_auth_ntlmssp_resp("", &ntlmssp_resp, rpc_in_p, 0)) {
- DEBUG(0,("api_pipe_bind_auth_resp: Failed to unmarshall RPC_AUTH_NTLMSSP_RESP.\n"));
+ if(!smb_io_rpc_hdr_resp("resp", &hdr_resp, &outgoing_pdu, 0)) {
+ DEBUG(0,("create_next_pdu_noath: failed to marshall RPC_HDR_RESP.\n"));
+ prs_mem_free(&outgoing_pdu);
+ return False;
+ }
+
+ /* Copy the data into the PDU. */
+
+ if(!prs_append_some_prs_data(&outgoing_pdu, &p->out_data.rdata, p->out_data.data_sent_length, data_len)) {
+ DEBUG(0,("create_next_pdu_noauth: failed to copy %u bytes of data.\n", (unsigned int)data_len));
+ prs_mem_free(&outgoing_pdu);
return False;
}
+ /*
+ * 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;
+
+ prs_mem_free(&outgoing_pdu);
+ return True;
+}
+
+/*******************************************************************
+ Generate the next PDU to be returned from the data in p->rdata.
+********************************************************************/
+
+bool create_next_pdu(pipes_struct *p)
+{
+ switch(p->auth.auth_level) {
+ case PIPE_AUTH_LEVEL_NONE:
+ case PIPE_AUTH_LEVEL_CONNECT:
+ /* This is incorrect for auth level connect. Fixme. JRA */
+ return create_next_pdu_noauth(p);
+
+ default:
+ switch(p->auth.auth_type) {
+ case PIPE_AUTH_TYPE_NTLMSSP:
+ case PIPE_AUTH_TYPE_SPNEGO_NTLMSSP:
+ return create_next_pdu_ntlmssp(p);
+ case PIPE_AUTH_TYPE_SCHANNEL:
+ return create_next_pdu_schannel(p);
+ default:
+ break;
+ }
+ }
+
+ DEBUG(0,("create_next_pdu: invalid internal auth level %u / type %u",
+ (unsigned int)p->auth.auth_level,
+ (unsigned int)p->auth.auth_type));
+ return False;
+}
+
+/*******************************************************************
+ 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.
+*******************************************************************/
+
+static bool pipe_ntlmssp_verify_final(pipes_struct *p, DATA_BLOB *p_resp_blob)
+{
+ DATA_BLOB reply;
+ NTSTATUS status;
+ AUTH_NTLMSSP_STATE *a = p->auth.a_u.auth_ntlmssp_state;
+
+ DEBUG(5,("pipe_ntlmssp_verify_final: pipe %s checking user details\n", p->name));
+
+ ZERO_STRUCT(reply);
+
+ memset(p->user_name, '\0', sizeof(p->user_name));
+ memset(p->pipe_user_name, '\0', sizeof(p->pipe_user_name));
+ memset(p->domain, '\0', sizeof(p->domain));
+ memset(p->wks, '\0', sizeof(p->wks));
+
+ /* Set up for non-authenticated user. */
+ TALLOC_FREE(p->pipe_user.nt_user_token);
+ p->pipe_user.ut.ngroups = 0;
+ SAFE_FREE( p->pipe_user.ut.groups);
+
+ /* this has to be done as root in order to verify the password */
+ become_root();
+ status = auth_ntlmssp_update(a, *p_resp_blob, &reply);
+ unbecome_root();
+
+ /* Don't generate a reply. */
+ data_blob_free(&reply);
+
+ if (!NT_STATUS_IS_OK(status)) {
+ return False;
+ }
+
+ /* Finally - if the pipe negotiated integrity (sign) or privacy (seal)
+ ensure the underlying NTLMSSP flags are also set. If not we should
+ refuse the bind. */
+
+ if (p->auth.auth_level == PIPE_AUTH_LEVEL_INTEGRITY) {
+ if (!(a->ntlmssp_state->neg_flags & NTLMSSP_NEGOTIATE_SIGN)) {
+ DEBUG(0,("pipe_ntlmssp_verify_final: pipe %s : packet integrity requested "
+ "but client declined signing.\n",
+ p->name ));
+ return False;
+ }
+ }
+ if (p->auth.auth_level == PIPE_AUTH_LEVEL_PRIVACY) {
+ if (!(a->ntlmssp_state->neg_flags & NTLMSSP_NEGOTIATE_SEAL)) {
+ DEBUG(0,("pipe_ntlmssp_verify_final: pipe %s : packet privacy requested "
+ "but client declined sealing.\n",
+ p->name ));
+ return False;
+ }
+ }
+
+ fstrcpy(p->user_name, a->ntlmssp_state->user);
+ fstrcpy(p->pipe_user_name, a->server_info->unix_name);
+ fstrcpy(p->domain, a->ntlmssp_state->domain);
+ fstrcpy(p->wks, a->ntlmssp_state->workstation);
+
+ DEBUG(5,("pipe_ntlmssp_verify_final: OK: user: %s domain: %s workstation: %s\n",
+ p->user_name, p->domain, p->wks));
+
+ /*
+ * Store the UNIX credential data (uid/gid pair) in the pipe structure.
+ */
+
+ p->pipe_user.ut.uid = a->server_info->uid;
+ p->pipe_user.ut.gid = a->server_info->gid;
+
+ /*
+ * We're an authenticated bind over smbd, so the session key needs to
+ * be set to "SystemLibraryDTC". Weird, but this is what Windows
+ * does. See the RPC-SAMBA3SESSIONKEY.
+ */
+
+ data_blob_free(&p->session_key);
+ p->session_key = generic_session_key();
+ if (!p->session_key.data) {
+ return False;
+ }
+
+ p->pipe_user.ut.ngroups = a->server_info->n_groups;
+ if (p->pipe_user.ut.ngroups) {
+ if (!(p->pipe_user.ut.groups = (gid_t *)memdup(a->server_info->groups,
+ sizeof(gid_t) * p->pipe_user.ut.ngroups))) {
+ DEBUG(0,("failed to memdup group list to p->pipe_user.groups\n"));
+ return False;
+ }
+ }
+
+ if (a->server_info->ptok) {
+ p->pipe_user.nt_user_token =
+ dup_nt_token(NULL, a->server_info->ptok);
+ } else {
+ DEBUG(1,("Error: Authmodule failed to provide nt_user_token\n"));
+ p->pipe_user.nt_user_token = NULL;
+ return False;
+ }
+
+ return True;
+}
+
+/*******************************************************************
+ The switch table for the pipe names and the functions to handle them.
+*******************************************************************/
+
+struct rpc_table {
+ struct {
+ const char *clnt;
+ const char *srv;
+ } pipe;
+ const struct api_struct *cmds;
+ int n_cmds;
+};
+
+static struct rpc_table *rpc_lookup;
+static int rpc_lookup_size;
+
+/*******************************************************************
+ This is the "stage3" NTLMSSP response after a bind request and reply.
+*******************************************************************/
+
+bool api_pipe_bind_auth3(pipes_struct *p, prs_struct *rpc_in_p)
+{
+ RPC_HDR_AUTH auth_info;
+ uint32 pad;
+ DATA_BLOB blob;
+
+ ZERO_STRUCT(blob);
+
+ DEBUG(5,("api_pipe_bind_auth3: decode request. %d\n", __LINE__));
+
+ if (p->hdr.auth_len == 0) {
+ DEBUG(0,("api_pipe_bind_auth3: No auth field sent !\n"));
+ goto err;
+ }
+
+ /* 4 bytes padding. */
+ if (!prs_uint32("pad", rpc_in_p, 0, &pad)) {
+ DEBUG(0,("api_pipe_bind_auth3: unmarshall of 4 byte pad failed.\n"));
+ goto err;
+ }
+
+ /*
+ * Decode the authentication verifier response.
+ */
+
+ if(!smb_io_rpc_hdr_auth("", &auth_info, rpc_in_p, 0)) {
+ DEBUG(0,("api_pipe_bind_auth3: unmarshall of RPC_HDR_AUTH failed.\n"));
+ goto err;
+ }
+
+ if (auth_info.auth_type != RPC_NTLMSSP_AUTH_TYPE) {
+ DEBUG(0,("api_pipe_bind_auth3: incorrect auth type (%u).\n",
+ (unsigned int)auth_info.auth_type ));
+ return False;
+ }
+
+ blob = data_blob(NULL,p->hdr.auth_len);
+
+ if (!prs_copy_data_out((char *)blob.data, rpc_in_p, p->hdr.auth_len)) {
+ DEBUG(0,("api_pipe_bind_auth3: Failed to pull %u bytes - the response blob.\n",
+ (unsigned int)p->hdr.auth_len ));
+ goto err;
+ }
+
/*
* 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;
+ if (!pipe_ntlmssp_verify_final(p, &blob)) {
+ goto err;
+ }
+
+ data_blob_free(&blob);
+
+ p->pipe_bound = True;
- p->pipe_bound = True
-;
return True;
+
+ err:
+
+ data_blob_free(&blob);
+ free_pipe_ntlmssp_auth_data(&p->auth);
+ p->auth.a_u.auth_ntlmssp_state = NULL;
+
+ return False;
}
/*******************************************************************
Marshall a bind_nak pdu.
*******************************************************************/
-static BOOL setup_bind_nak(pipes_struct *p)
+static bool setup_bind_nak(pipes_struct *p)
{
prs_struct outgoing_rpc;
RPC_HDR nak_hdr;
prs_init( &outgoing_rpc, 0, p->mem_ctx, 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);
+ p->hdr.call_id, RPC_HEADER_LEN + sizeof(uint16), 0);
/*
* Marshall the header into the outgoing PDU.
if(!prs_uint16("reject code", &outgoing_rpc, 0, &zero)) {
prs_mem_free(&outgoing_rpc);
- return False;
+ 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;
+ if (p->auth.auth_data_free_func) {
+ (*p->auth.auth_data_free_func)(&p->auth);
+ }
+ p->auth.auth_level = PIPE_AUTH_LEVEL_NONE;
+ p->auth.auth_type = PIPE_AUTH_TYPE_NONE;
p->pipe_bound = False;
return True;
Marshall a fault pdu.
*******************************************************************/
-BOOL setup_fault_pdu(pipes_struct *p, NTSTATUS status)
+bool setup_fault_pdu(pipes_struct *p, NTSTATUS status)
{
prs_struct outgoing_pdu;
RPC_HDR fault_hdr;
return True;
}
+#if 0
+/*******************************************************************
+ Marshall a cancel_ack pdu.
+ We should probably check the auth-verifier here.
+*******************************************************************/
+
+bool setup_cancel_ack_reply(pipes_struct *p, prs_struct *rpc_in_p)
+{
+ prs_struct outgoing_pdu;
+ RPC_HDR ack_reply_hdr;
+
+ /* Free any memory in the current return data buffer. */
+ prs_mem_free(&p->out_data.rdata);
+
+ /*
+ * 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, p->mem_ctx, MARSHALL);
+ prs_give_memory( &outgoing_pdu, (char *)p->out_data.current_pdu, sizeof(p->out_data.current_pdu), False);
+
+ /*
+ * Initialize a cancel_ack header.
+ */
+
+ init_rpc_hdr(&ack_reply_hdr, RPC_CANCEL_ACK, RPC_FLG_FIRST | RPC_FLG_LAST,
+ p->hdr.call_id, RPC_HEADER_LEN, 0);
+
+ /*
+ * Marshall the header into the outgoing PDU.
+ */
+
+ if(!smb_io_rpc_hdr("", &ack_reply_hdr, &outgoing_pdu, 0)) {
+ DEBUG(0,("setup_cancel_ack_reply: marshalling of RPC_HDR failed.\n"));
+ prs_mem_free(&outgoing_pdu);
+ 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;
+
+ prs_mem_free(&outgoing_pdu);
+ return True;
+}
+#endif
+
/*******************************************************************
Ensure a bind request has the correct abstract & transfer interface.
Used to reject unknown binds from Win2k.
*******************************************************************/
-BOOL check_bind_req(struct pipes_struct *p, RPC_IFACE* abstract,
+bool check_bind_req(struct pipes_struct *p, RPC_IFACE* abstract,
RPC_IFACE* transfer, uint32 context_id)
{
- extern struct pipe_id_info pipe_names[];
char *pipe_name = p->name;
int i=0;
fstring pname;
/* we have to check all now since win2k introduced a new UUID on the lsaprpc pipe */
- for ( i=0; pipe_names[i].client_pipe; i++ )
- {
+ for ( i=0; pipe_names[i].client_pipe; i++ ) {
+ DEBUGADD(10,("checking %s\n", pipe_names[i].client_pipe));
if ( strequal(pipe_names[i].client_pipe, pname)
&& (abstract->version == pipe_names[i].abstr_syntax.version)
- && (memcmp(&abstract->uuid, &pipe_names[i].abstr_syntax.uuid, sizeof(struct uuid)) == 0)
+ && (memcmp(&abstract->uuid, &pipe_names[i].abstr_syntax.uuid, sizeof(struct GUID)) == 0)
&& (transfer->version == pipe_names[i].trans_syntax.version)
- && (memcmp(&transfer->uuid, &pipe_names[i].trans_syntax.uuid, sizeof(struct uuid)) == 0) )
- {
+ && (memcmp(&transfer->uuid, &pipe_names[i].trans_syntax.uuid, sizeof(struct GUID)) == 0) ) {
struct api_struct *fns = NULL;
int n_fns = 0;
PIPE_RPC_FNS *context_fns;
- if ( !(context_fns = malloc(sizeof(PIPE_RPC_FNS))) ) {
+ if ( !(context_fns = SMB_MALLOC_P(PIPE_RPC_FNS)) ) {
DEBUG(0,("check_bind_req: malloc() failed!\n"));
return False;
}
}
}
- if(pipe_names[i].client_pipe == NULL)
+ if(pipe_names[i].client_pipe == NULL) {
return False;
+ }
return True;
}
/*******************************************************************
Register commands to an RPC pipe
*******************************************************************/
+
NTSTATUS rpc_pipe_register_commands(int version, const char *clnt, const char *srv, const struct api_struct *cmds, int size)
{
struct rpc_table *rpc_entry;
/* We use a temporary variable because this call can fail and
rpc_lookup will still be valid afterwards. It could then succeed if
called again later */
- rpc_entry = realloc(rpc_lookup,
- ++rpc_lookup_size*sizeof(struct rpc_table));
+ rpc_lookup_size++;
+ rpc_entry = SMB_REALLOC_ARRAY_KEEP_OLD_ON_ERROR(rpc_lookup, struct rpc_table, rpc_lookup_size);
if (NULL == rpc_entry) {
rpc_lookup_size--;
DEBUG(0, ("rpc_pipe_register_commands: memory allocation failed\n"));
rpc_entry = rpc_lookup + (rpc_lookup_size - 1);
ZERO_STRUCTP(rpc_entry);
- rpc_entry->pipe.clnt = strdup(clnt);
- rpc_entry->pipe.srv = strdup(srv);
- rpc_entry->cmds = realloc(rpc_entry->cmds,
- (rpc_entry->n_cmds + size) *
- sizeof(struct api_struct));
- memcpy(rpc_entry->cmds + rpc_entry->n_cmds, cmds,
- size * sizeof(struct api_struct));
- rpc_entry->n_cmds += size;
+ rpc_entry->pipe.clnt = SMB_STRDUP(clnt);
+ rpc_entry->pipe.srv = SMB_STRDUP(srv);
+ rpc_entry->cmds = cmds;
+ rpc_entry->n_cmds = size;
return NT_STATUS_OK;
}
+/*******************************************************************
+ Handle a SPNEGO krb5 bind auth.
+*******************************************************************/
+
+static bool pipe_spnego_auth_bind_kerberos(pipes_struct *p, prs_struct *rpc_in_p, RPC_HDR_AUTH *pauth_info,
+ DATA_BLOB *psecblob, prs_struct *pout_auth)
+{
+ return False;
+}
+
+/*******************************************************************
+ Handle the first part of a SPNEGO bind auth.
+*******************************************************************/
+
+static bool pipe_spnego_auth_bind_negotiate(pipes_struct *p, prs_struct *rpc_in_p,
+ RPC_HDR_AUTH *pauth_info, prs_struct *pout_auth)
+{
+ DATA_BLOB blob;
+ DATA_BLOB secblob;
+ DATA_BLOB response;
+ DATA_BLOB chal;
+ char *OIDs[ASN1_MAX_OIDS];
+ int i;
+ NTSTATUS status;
+ bool got_kerberos_mechanism = false;
+ AUTH_NTLMSSP_STATE *a = NULL;
+ RPC_HDR_AUTH auth_info;
+
+ ZERO_STRUCT(secblob);
+ ZERO_STRUCT(chal);
+ ZERO_STRUCT(response);
+
+ /* Grab the SPNEGO blob. */
+ blob = data_blob(NULL,p->hdr.auth_len);
+
+ if (!prs_copy_data_out((char *)blob.data, rpc_in_p, p->hdr.auth_len)) {
+ DEBUG(0,("pipe_spnego_auth_bind_negotiate: Failed to pull %u bytes - the SPNEGO auth header.\n",
+ (unsigned int)p->hdr.auth_len ));
+ goto err;
+ }
+
+ if (blob.data[0] != ASN1_APPLICATION(0)) {
+ goto err;
+ }
+
+ /* parse out the OIDs and the first sec blob */
+ if (!parse_negTokenTarg(blob, OIDs, &secblob)) {
+ DEBUG(0,("pipe_spnego_auth_bind_negotiate: Failed to parse the security blob.\n"));
+ goto err;
+ }
+
+ if (strcmp(OID_KERBEROS5, OIDs[0]) == 0 || strcmp(OID_KERBEROS5_OLD, OIDs[0]) == 0) {
+ got_kerberos_mechanism = true;
+ }
+
+ for (i=0;OIDs[i];i++) {
+ DEBUG(3,("pipe_spnego_auth_bind_negotiate: Got OID %s\n", OIDs[i]));
+ SAFE_FREE(OIDs[i]);
+ }
+ DEBUG(3,("pipe_spnego_auth_bind_negotiate: Got secblob of size %lu\n", (unsigned long)secblob.length));
+
+ if ( got_kerberos_mechanism && ((lp_security()==SEC_ADS) || lp_use_kerberos_keytab()) ) {
+ bool ret = pipe_spnego_auth_bind_kerberos(p, rpc_in_p, pauth_info, &secblob, pout_auth);
+ data_blob_free(&secblob);
+ data_blob_free(&blob);
+ return ret;
+ }
+
+ if (p->auth.auth_type == PIPE_AUTH_TYPE_SPNEGO_NTLMSSP && p->auth.a_u.auth_ntlmssp_state) {
+ /* Free any previous auth type. */
+ free_pipe_ntlmssp_auth_data(&p->auth);
+ }
+
+ if (!got_kerberos_mechanism) {
+ /* Initialize the NTLM engine. */
+ status = auth_ntlmssp_start(&a);
+ if (!NT_STATUS_IS_OK(status)) {
+ goto err;
+ }
+
+ /*
+ * Pass the first security blob of data to it.
+ * This can return an error or NT_STATUS_MORE_PROCESSING_REQUIRED
+ * which means we need another packet to complete the bind.
+ */
+
+ status = auth_ntlmssp_update(a, secblob, &chal);
+
+ if (!NT_STATUS_EQUAL(status, NT_STATUS_MORE_PROCESSING_REQUIRED)) {
+ DEBUG(3,("pipe_spnego_auth_bind_negotiate: auth_ntlmssp_update failed.\n"));
+ goto err;
+ }
+
+ /* Generate the response blob we need for step 2 of the bind. */
+ response = spnego_gen_auth_response(&chal, status, OID_NTLMSSP);
+ } else {
+ /*
+ * SPNEGO negotiate down to NTLMSSP. The subsequent
+ * code to process follow-up packets is not complete
+ * yet. JRA.
+ */
+ response = spnego_gen_auth_response(NULL,
+ NT_STATUS_MORE_PROCESSING_REQUIRED,
+ OID_NTLMSSP);
+ }
+
+ /* Copy the blob into the pout_auth parse struct */
+ init_rpc_hdr_auth(&auth_info, RPC_SPNEGO_AUTH_TYPE, pauth_info->auth_level, RPC_HDR_AUTH_LEN, 1);
+ if(!smb_io_rpc_hdr_auth("", &auth_info, pout_auth, 0)) {
+ DEBUG(0,("pipe_spnego_auth_bind_negotiate: marshalling of RPC_HDR_AUTH failed.\n"));
+ goto err;
+ }
+
+ if (!prs_copy_data_in(pout_auth, (char *)response.data, response.length)) {
+ DEBUG(0,("pipe_spnego_auth_bind_negotiate: marshalling of data blob failed.\n"));
+ goto err;
+ }
+
+ p->auth.a_u.auth_ntlmssp_state = a;
+ p->auth.auth_data_free_func = &free_pipe_ntlmssp_auth_data;
+ p->auth.auth_type = PIPE_AUTH_TYPE_SPNEGO_NTLMSSP;
+
+ data_blob_free(&blob);
+ data_blob_free(&secblob);
+ data_blob_free(&chal);
+ data_blob_free(&response);
+
+ /* We can't set pipe_bound True yet - we need an RPC_ALTER_CONTEXT response packet... */
+ return True;
+
+ err:
+
+ data_blob_free(&blob);
+ data_blob_free(&secblob);
+ data_blob_free(&chal);
+ data_blob_free(&response);
+
+ p->auth.a_u.auth_ntlmssp_state = NULL;
+
+ return False;
+}
+
+/*******************************************************************
+ Handle the second part of a SPNEGO bind auth.
+*******************************************************************/
+
+static bool pipe_spnego_auth_bind_continue(pipes_struct *p, prs_struct *rpc_in_p,
+ RPC_HDR_AUTH *pauth_info, prs_struct *pout_auth)
+{
+ RPC_HDR_AUTH auth_info;
+ DATA_BLOB spnego_blob;
+ DATA_BLOB auth_blob;
+ DATA_BLOB auth_reply;
+ DATA_BLOB response;
+ AUTH_NTLMSSP_STATE *a = p->auth.a_u.auth_ntlmssp_state;
+
+ ZERO_STRUCT(spnego_blob);
+ ZERO_STRUCT(auth_blob);
+ ZERO_STRUCT(auth_reply);
+ ZERO_STRUCT(response);
+
+ /*
+ * NB. If we've negotiated down from krb5 to NTLMSSP we'll currently
+ * fail here as 'a' == NULL.
+ */
+ if (p->auth.auth_type != PIPE_AUTH_TYPE_SPNEGO_NTLMSSP || !a) {
+ DEBUG(0,("pipe_spnego_auth_bind_continue: not in NTLMSSP auth state.\n"));
+ goto err;
+ }
+
+ /* Grab the SPNEGO blob. */
+ spnego_blob = data_blob(NULL,p->hdr.auth_len);
+
+ if (!prs_copy_data_out((char *)spnego_blob.data, rpc_in_p, p->hdr.auth_len)) {
+ DEBUG(0,("pipe_spnego_auth_bind_continue: Failed to pull %u bytes - the SPNEGO auth header.\n",
+ (unsigned int)p->hdr.auth_len ));
+ goto err;
+ }
+
+ if (spnego_blob.data[0] != ASN1_CONTEXT(1)) {
+ DEBUG(0,("pipe_spnego_auth_bind_continue: invalid SPNEGO blob type.\n"));
+ goto err;
+ }
+
+ if (!spnego_parse_auth(spnego_blob, &auth_blob)) {
+ DEBUG(0,("pipe_spnego_auth_bind_continue: invalid SPNEGO blob.\n"));
+ goto err;
+ }
+
+ /*
+ * The following call actually checks the challenge/response data.
+ * for correctness against the given DOMAIN\user name.
+ */
+
+ if (!pipe_ntlmssp_verify_final(p, &auth_blob)) {
+ goto err;
+ }
+
+ data_blob_free(&spnego_blob);
+ data_blob_free(&auth_blob);
+
+ /* Generate the spnego "accept completed" blob - no incoming data. */
+ response = spnego_gen_auth_response(&auth_reply, NT_STATUS_OK, OID_NTLMSSP);
+
+ /* Copy the blob into the pout_auth parse struct */
+ init_rpc_hdr_auth(&auth_info, RPC_SPNEGO_AUTH_TYPE, pauth_info->auth_level, RPC_HDR_AUTH_LEN, 1);
+ if(!smb_io_rpc_hdr_auth("", &auth_info, pout_auth, 0)) {
+ DEBUG(0,("pipe_spnego_auth_bind_continue: marshalling of RPC_HDR_AUTH failed.\n"));
+ goto err;
+ }
+
+ if (!prs_copy_data_in(pout_auth, (char *)response.data, response.length)) {
+ DEBUG(0,("pipe_spnego_auth_bind_continue: marshalling of data blob failed.\n"));
+ goto err;
+ }
+
+ data_blob_free(&auth_reply);
+ data_blob_free(&response);
+
+ p->pipe_bound = True;
+
+ return True;
+
+ err:
+
+ data_blob_free(&spnego_blob);
+ data_blob_free(&auth_blob);
+ data_blob_free(&auth_reply);
+ data_blob_free(&response);
+
+ free_pipe_ntlmssp_auth_data(&p->auth);
+ p->auth.a_u.auth_ntlmssp_state = NULL;
+
+ return False;
+}
+
+/*******************************************************************
+ Handle an schannel bind auth.
+*******************************************************************/
+
+static bool pipe_schannel_auth_bind(pipes_struct *p, prs_struct *rpc_in_p,
+ RPC_HDR_AUTH *pauth_info, prs_struct *pout_auth)
+{
+ RPC_HDR_AUTH auth_info;
+ RPC_AUTH_SCHANNEL_NEG neg;
+ RPC_AUTH_VERIFIER auth_verifier;
+ bool ret;
+ struct dcinfo *pdcinfo;
+ uint32 flags;
+
+ if (!smb_io_rpc_auth_schannel_neg("", &neg, rpc_in_p, 0)) {
+ DEBUG(0,("pipe_schannel_auth_bind: Could not unmarshal SCHANNEL auth neg\n"));
+ return False;
+ }
+
+ /*
+ * The neg.myname key here must match the remote computer name
+ * given in the DOM_CLNT_SRV.uni_comp_name used on all netlogon pipe
+ * operations that use credentials.
+ */
+
+ become_root();
+ ret = secrets_restore_schannel_session_info(p->mem_ctx, neg.myname, &pdcinfo);
+ unbecome_root();
+
+ if (!ret) {
+ DEBUG(0, ("pipe_schannel_auth_bind: Attempt to bind using schannel without successful serverauth2\n"));
+ return False;
+ }
+
+ p->auth.a_u.schannel_auth = TALLOC_P(p->pipe_state_mem_ctx, struct schannel_auth_struct);
+ if (!p->auth.a_u.schannel_auth) {
+ TALLOC_FREE(pdcinfo);
+ return False;
+ }
+
+ memset(p->auth.a_u.schannel_auth->sess_key, 0, sizeof(p->auth.a_u.schannel_auth->sess_key));
+ memcpy(p->auth.a_u.schannel_auth->sess_key, pdcinfo->sess_key,
+ sizeof(pdcinfo->sess_key));
+
+ TALLOC_FREE(pdcinfo);
+
+ p->auth.a_u.schannel_auth->seq_num = 0;
+
+ /*
+ * JRA. Should we also copy the schannel session key into the pipe session key p->session_key
+ * here ? We do that for NTLMSSP, but the session key is already set up from the vuser
+ * struct of the person who opened the pipe. I need to test this further. JRA.
+ *
+ * VL. As we are mapping this to guest set the generic key
+ * "SystemLibraryDTC" key here. It's a bit difficult to test against
+ * W2k3, as it does not allow schannel binds against SAMR and LSA
+ * anymore.
+ */
+
+ data_blob_free(&p->session_key);
+ p->session_key = generic_session_key();
+ if (p->session_key.data == NULL) {
+ DEBUG(0, ("pipe_schannel_auth_bind: Could not alloc session"
+ " key\n"));
+ return False;
+ }
+
+ init_rpc_hdr_auth(&auth_info, RPC_SCHANNEL_AUTH_TYPE, pauth_info->auth_level, RPC_HDR_AUTH_LEN, 1);
+ if(!smb_io_rpc_hdr_auth("", &auth_info, pout_auth, 0)) {
+ DEBUG(0,("pipe_schannel_auth_bind: marshalling of RPC_HDR_AUTH failed.\n"));
+ return False;
+ }
+
+ /*** SCHANNEL verifier ***/
+
+ init_rpc_auth_verifier(&auth_verifier, "\001", 0x0);
+ if(!smb_io_rpc_schannel_verifier("", &auth_verifier, pout_auth, 0)) {
+ DEBUG(0,("pipe_schannel_auth_bind: marshalling of RPC_AUTH_VERIFIER failed.\n"));
+ return False;
+ }
+
+ prs_align(pout_auth);
+
+ flags = 5;
+ if(!prs_uint32("flags ", pout_auth, 0, &flags)) {
+ return False;
+ }
+
+ DEBUG(10,("pipe_schannel_auth_bind: schannel auth: domain [%s] myname [%s]\n",
+ neg.domain, neg.myname));
+
+ /* We're finished with this bind - no more packets. */
+ p->auth.auth_data_free_func = NULL;
+ p->auth.auth_type = PIPE_AUTH_TYPE_SCHANNEL;
+
+ p->pipe_bound = True;
+
+ return True;
+}
+
+/*******************************************************************
+ Handle an NTLMSSP bind auth.
+*******************************************************************/
+
+static bool pipe_ntlmssp_auth_bind(pipes_struct *p, prs_struct *rpc_in_p,
+ RPC_HDR_AUTH *pauth_info, prs_struct *pout_auth)
+{
+ RPC_HDR_AUTH auth_info;
+ DATA_BLOB blob;
+ DATA_BLOB response;
+ NTSTATUS status;
+ AUTH_NTLMSSP_STATE *a = NULL;
+
+ ZERO_STRUCT(blob);
+ ZERO_STRUCT(response);
+
+ /* Grab the NTLMSSP blob. */
+ blob = data_blob(NULL,p->hdr.auth_len);
+
+ if (!prs_copy_data_out((char *)blob.data, rpc_in_p, p->hdr.auth_len)) {
+ DEBUG(0,("pipe_ntlmssp_auth_bind: Failed to pull %u bytes - the NTLM auth header.\n",
+ (unsigned int)p->hdr.auth_len ));
+ goto err;
+ }
+
+ if (strncmp((char *)blob.data, "NTLMSSP", 7) != 0) {
+ DEBUG(0,("pipe_ntlmssp_auth_bind: Failed to read NTLMSSP in blob\n"));
+ goto err;
+ }
+
+ /* We have an NTLMSSP blob. */
+ status = auth_ntlmssp_start(&a);
+ if (!NT_STATUS_IS_OK(status)) {
+ DEBUG(0,("pipe_ntlmssp_auth_bind: auth_ntlmssp_start failed: %s\n",
+ nt_errstr(status) ));
+ goto err;
+ }
+
+ status = auth_ntlmssp_update(a, blob, &response);
+ if (!NT_STATUS_EQUAL(status, NT_STATUS_MORE_PROCESSING_REQUIRED)) {
+ DEBUG(0,("pipe_ntlmssp_auth_bind: auth_ntlmssp_update failed: %s\n",
+ nt_errstr(status) ));
+ goto err;
+ }
+
+ data_blob_free(&blob);
+
+ /* Copy the blob into the pout_auth parse struct */
+ init_rpc_hdr_auth(&auth_info, RPC_NTLMSSP_AUTH_TYPE, pauth_info->auth_level, RPC_HDR_AUTH_LEN, 1);
+ if(!smb_io_rpc_hdr_auth("", &auth_info, pout_auth, 0)) {
+ DEBUG(0,("pipe_ntlmssp_auth_bind: marshalling of RPC_HDR_AUTH failed.\n"));
+ goto err;
+ }
+
+ if (!prs_copy_data_in(pout_auth, (char *)response.data, response.length)) {
+ DEBUG(0,("pipe_ntlmssp_auth_bind: marshalling of data blob failed.\n"));
+ goto err;
+ }
+
+ p->auth.a_u.auth_ntlmssp_state = a;
+ p->auth.auth_data_free_func = &free_pipe_ntlmssp_auth_data;
+ p->auth.auth_type = PIPE_AUTH_TYPE_NTLMSSP;
+
+ data_blob_free(&blob);
+ data_blob_free(&response);
+
+ DEBUG(10,("pipe_ntlmssp_auth_bind: NTLMSSP auth started\n"));
+
+ /* We can't set pipe_bound True yet - we need an RPC_AUTH3 response packet... */
+ return True;
+
+ err:
+
+ data_blob_free(&blob);
+ data_blob_free(&response);
+
+ free_pipe_ntlmssp_auth_data(&p->auth);
+ p->auth.a_u.auth_ntlmssp_state = NULL;
+ return False;
+}
+
/*******************************************************************
Respond to a pipe bind request.
*******************************************************************/
-BOOL api_pipe_bind_req(pipes_struct *p, prs_struct *rpc_in_p)
+bool api_pipe_bind_req(pipes_struct *p, prs_struct *rpc_in_p)
{
RPC_HDR_BA hdr_ba;
RPC_HDR_RB hdr_rb;
prs_struct outgoing_rpc;
int i = 0;
int auth_len = 0;
- enum RPC_PKT_TYPE reply_pkt_type;
+ unsigned int auth_type = RPC_ANONYMOUS_AUTH_TYPE;
+
+ /* No rebinds on a bound pipe - use alter context. */
+ if (p->pipe_bound) {
+ DEBUG(2,("api_pipe_bind_req: rejecting bind request on bound pipe %s.\n", p->pipe_srv_name));
+ return setup_bind_nak(p);
+ }
+
+ prs_init( &outgoing_rpc, 0, p->mem_ctx, MARSHALL);
+
+ /*
+ * 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_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.
+ */
- p->ntlmssp_auth_requested = False;
- p->netsec_auth_validated = False;
+ if(!prs_init(&out_hdr_ba, 1024, p->mem_ctx, MARSHALL)) {
+ DEBUG(0,("api_pipe_bind_req: malloc out_hdr_ba failed.\n"));
+ prs_mem_free(&outgoing_rpc);
+ return False;
+ }
+
+ if(!prs_init(&out_auth, 1024, p->mem_ctx, MARSHALL)) {
+ DEBUG(0,("api_pipe_bind_req: malloc out_auth failed.\n"));
+ prs_mem_free(&outgoing_rpc);
+ prs_mem_free(&out_hdr_ba);
+ return False;
+ }
DEBUG(5,("api_pipe_bind_req: decode request. %d\n", __LINE__));
for (i = 0; i < rpc_lookup_size; i++) {
if (strequal(rpc_lookup[i].pipe.clnt, p->name)) {
- DEBUG(3, ("api_pipe_bind_req: \\PIPE\\%s -> \\PIPE\\%s\n",
- rpc_lookup[i].pipe.clnt, rpc_lookup[i].pipe.srv));
- fstrcpy(p->pipe_srv_name, rpc_lookup[i].pipe.srv);
- break;
- }
+ DEBUG(3, ("api_pipe_bind_req: \\PIPE\\%s -> \\PIPE\\%s\n",
+ rpc_lookup[i].pipe.clnt, rpc_lookup[i].pipe.srv));
+ fstrcpy(p->pipe_srv_name, rpc_lookup[i].pipe.srv);
+ break;
+ }
}
if (i == rpc_lookup_size) {
if (NT_STATUS_IS_ERR(smb_probe_module("rpc", p->name))) {
DEBUG(3,("api_pipe_bind_req: Unknown pipe name %s in bind request.\n",
p->name ));
- if(!setup_bind_nak(p))
- return False;
- return True;
+ prs_mem_free(&outgoing_rpc);
+ prs_mem_free(&out_hdr_ba);
+ prs_mem_free(&out_auth);
+
+ return setup_bind_nak(p);
}
for (i = 0; i < rpc_lookup_size; i++) {
if (i == rpc_lookup_size) {
DEBUG(0, ("module %s doesn't provide functions for pipe %s!\n", p->name, p->name));
- return False;
+ goto err_exit;
}
}
/* decode the bind request */
if(!smb_io_rpc_hdr_rb("", &hdr_rb, rpc_in_p, 0)) {
DEBUG(0,("api_pipe_bind_req: unable to unmarshall RPC_HDR_RB struct.\n"));
- return False;
+ goto err_exit;
+ }
+
+ /* name has to be \PIPE\xxxxx */
+ fstrcpy(ack_pipe_name, "\\PIPE\\");
+ fstrcat(ack_pipe_name, p->pipe_srv_name);
+
+ DEBUG(5,("api_pipe_bind_req: make response. %d\n", __LINE__));
+
+ /*
+ * Check if this is an authenticated bind request.
+ */
+
+ if (p->hdr.auth_len) {
+ /*
+ * Decode the authentication verifier.
+ */
+
+ if(!smb_io_rpc_hdr_auth("", &auth_info, rpc_in_p, 0)) {
+ DEBUG(0,("api_pipe_bind_req: unable to unmarshall RPC_HDR_AUTH struct.\n"));
+ goto err_exit;
+ }
+
+ auth_type = auth_info.auth_type;
+
+ /* Work out if we have to sign or seal etc. */
+ switch (auth_info.auth_level) {
+ case RPC_AUTH_LEVEL_INTEGRITY:
+ p->auth.auth_level = PIPE_AUTH_LEVEL_INTEGRITY;
+ break;
+ case RPC_AUTH_LEVEL_PRIVACY:
+ p->auth.auth_level = PIPE_AUTH_LEVEL_PRIVACY;
+ break;
+ default:
+ DEBUG(0,("api_pipe_bind_req: unexpected auth level (%u).\n",
+ (unsigned int)auth_info.auth_level ));
+ goto err_exit;
+ }
+ } else {
+ ZERO_STRUCT(auth_info);
+ }
+
+ assoc_gid = hdr_rb.bba.assoc_gid ? hdr_rb.bba.assoc_gid : 0x53f0;
+
+ switch(auth_type) {
+ case RPC_NTLMSSP_AUTH_TYPE:
+ if (!pipe_ntlmssp_auth_bind(p, rpc_in_p, &auth_info, &out_auth)) {
+ goto err_exit;
+ }
+ assoc_gid = 0x7a77;
+ break;
+
+ case RPC_SCHANNEL_AUTH_TYPE:
+ if (!pipe_schannel_auth_bind(p, rpc_in_p, &auth_info, &out_auth)) {
+ goto err_exit;
+ }
+ break;
+
+ case RPC_SPNEGO_AUTH_TYPE:
+ if (!pipe_spnego_auth_bind_negotiate(p, rpc_in_p, &auth_info, &out_auth)) {
+ goto err_exit;
+ }
+ break;
+
+ case RPC_ANONYMOUS_AUTH_TYPE:
+ /* Unauthenticated bind request. */
+ /* Get the authenticated pipe user from current_user */
+ if (!copy_current_user(&p->pipe_user, ¤t_user)) {
+ DEBUG(10, ("Could not copy current user\n"));
+ goto err_exit;
+ }
+ /* We're finished - no more packets. */
+ p->auth.auth_type = PIPE_AUTH_TYPE_NONE;
+ /* We must set the pipe auth_level here also. */
+ p->auth.auth_level = PIPE_AUTH_LEVEL_NONE;
+ p->pipe_bound = True;
+ /* The session key was initialized from the SMB
+ * session in make_internal_rpc_pipe_p */
+ break;
+
+ default:
+ DEBUG(0,("api_pipe_bind_req: unknown auth type %x requested.\n", auth_type ));
+ goto err_exit;
}
/*
- * Check if this is an authenticated request.
+ * Create the bind response struct.
*/
- if (p->hdr.auth_len != 0) {
- RPC_AUTH_VERIFIER auth_verifier;
- RPC_AUTH_NTLMSSP_NEG ntlmssp_neg;
+ /* If the requested abstract synt uuid doesn't match our client pipe,
+ reject the bind_ack & set the transfer interface synt to all 0's,
+ ver 0 (observed when NT5 attempts to bind to abstract interfaces
+ unknown to NT4)
+ Needed when adding entries to a DACL from NT5 - SK */
- /*
- * Decode the authentication verifier.
- */
+ if(check_bind_req(p, &hdr_rb.rpc_context[0].abstract, &hdr_rb.rpc_context[0].transfer[0],
+ hdr_rb.rpc_context[0].context_id )) {
+ init_rpc_hdr_ba(&hdr_ba,
+ RPC_MAX_PDU_FRAG_LEN,
+ RPC_MAX_PDU_FRAG_LEN,
+ assoc_gid,
+ ack_pipe_name,
+ 0x1, 0x0, 0x0,
+ &hdr_rb.rpc_context[0].transfer[0]);
+ } else {
+ RPC_IFACE null_interface;
+ ZERO_STRUCT(null_interface);
+ /* Rejection reason: abstract syntax not supported */
+ init_rpc_hdr_ba(&hdr_ba, RPC_MAX_PDU_FRAG_LEN,
+ RPC_MAX_PDU_FRAG_LEN, assoc_gid,
+ ack_pipe_name, 0x1, 0x2, 0x1,
+ &null_interface);
+ p->pipe_bound = False;
+ }
- if(!smb_io_rpc_hdr_auth("", &auth_info, rpc_in_p, 0)) {
- DEBUG(0,("api_pipe_bind_req: unable to unmarshall RPC_HDR_AUTH struct.\n"));
- return False;
- }
+ /*
+ * and marshall it.
+ */
- if(auth_info.auth_type == NTLMSSP_AUTH_TYPE) {
+ 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;
+ }
- if(!smb_io_rpc_auth_verifier("", &auth_verifier, rpc_in_p, 0)) {
- DEBUG(0,("api_pipe_bind_req: unable to "
- "unmarshall RPC_HDR_AUTH struct.\n"));
- return False;
- }
+ /*
+ * Create the header, now we know the length.
+ */
- if(!strequal(auth_verifier.signature, "NTLMSSP")) {
- DEBUG(0,("api_pipe_bind_req: "
- "auth_verifier.signature != NTLMSSP\n"));
- return False;
- }
+ if (prs_offset(&out_auth)) {
+ auth_len = prs_offset(&out_auth) - RPC_HDR_AUTH_LEN;
+ }
- 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;
- }
+ init_rpc_hdr(&p->hdr, RPC_BINDACK, RPC_FLG_FIRST | RPC_FLG_LAST,
+ p->hdr.call_id,
+ RPC_HEADER_LEN + prs_offset(&out_hdr_ba) + prs_offset(&out_auth),
+ auth_len);
- if(!smb_io_rpc_auth_ntlmssp_neg("", &ntlmssp_neg, rpc_in_p, 0)) {
- DEBUG(0,("api_pipe_bind_req: "
- "Failed to unmarshall RPC_AUTH_NTLMSSP_NEG.\n"));
- return False;
- }
+ /*
+ * Marshall the header into the outgoing PDU.
+ */
- p->ntlmssp_chal_flags = SMBD_NTLMSSP_NEG_FLAGS;
- p->ntlmssp_auth_requested = True;
+ if(!smb_io_rpc_hdr("", &p->hdr, &outgoing_rpc, 0)) {
+ DEBUG(0,("api_pipe_bind_req: marshalling of RPC_HDR failed.\n"));
+ goto err_exit;
+ }
- } else if (auth_info.auth_type == NETSEC_AUTH_TYPE) {
+ /*
+ * Now add the RPC_HDR_BA and any auth needed.
+ */
- RPC_AUTH_NETSEC_NEG neg;
- struct netsec_auth_struct *a = &(p->netsec_auth);
+ 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 (!smb_io_rpc_auth_netsec_neg("", &neg, rpc_in_p, 0)) {
- DEBUG(0,("api_pipe_bind_req: "
- "Could not unmarshal SCHANNEL auth neg\n"));
- return False;
- }
+ if (auth_len && !prs_append_prs_data( &outgoing_rpc, &out_auth)) {
+ DEBUG(0,("api_pipe_bind_req: append of auth info failed.\n"));
+ goto err_exit;
+ }
- p->netsec_auth_validated = True;
+ /*
+ * Setup the lengths for the initial reply.
+ */
- memset(a->sess_key, 0, sizeof(a->sess_key));
- memcpy(a->sess_key, last_dcinfo.sess_key, sizeof(last_dcinfo.sess_key));
+ p->out_data.data_sent_length = 0;
+ p->out_data.current_pdu_len = prs_offset(&outgoing_rpc);
+ p->out_data.current_pdu_sent = 0;
- a->seq_num = 0;
+ prs_mem_free(&out_hdr_ba);
+ prs_mem_free(&out_auth);
- DEBUG(10,("schannel auth: domain [%s] myname [%s]\n",
- neg.domain, neg.myname));
+ return True;
- } else {
- DEBUG(0,("api_pipe_bind_req: unknown auth type %x requested.\n",
- auth_info.auth_type ));
- return False;
- }
- }
+ err_exit:
- switch(p->hdr.pkt_type) {
- case RPC_BIND:
- /* name has to be \PIPE\xxxxx */
- fstrcpy(ack_pipe_name, "\\PIPE\\");
- fstrcat(ack_pipe_name, p->pipe_srv_name);
- reply_pkt_type = RPC_BINDACK;
- break;
- case RPC_ALTCONT:
- /* secondary address CAN be NULL
- * as the specs say it's ignored.
- * It MUST NULL to have the spoolss working.
- */
- fstrcpy(ack_pipe_name,"");
- reply_pkt_type = RPC_ALTCONTRESP;
- break;
- default:
- return False;
- }
+ prs_mem_free(&outgoing_rpc);
+ prs_mem_free(&out_hdr_ba);
+ prs_mem_free(&out_auth);
+ return setup_bind_nak(p);
+}
- DEBUG(5,("api_pipe_bind_req: make response. %d\n", __LINE__));
+/****************************************************************************
+ Deal with an alter context call. Can be third part of 3 leg auth request for
+ SPNEGO calls.
+****************************************************************************/
+
+bool api_pipe_alter_context(pipes_struct *p, prs_struct *rpc_in_p)
+{
+ 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 auth_len = 0;
+
+ prs_init( &outgoing_rpc, 0, p->mem_ctx, MARSHALL);
/*
* Marshall directly into the outgoing PDU space. We
* header and are never sending more than one PDU here.
*/
- prs_init( &outgoing_rpc, 0, p->mem_ctx, MARSHALL);
prs_give_memory( &outgoing_rpc, (char *)p->out_data.current_pdu, sizeof(p->out_data.current_pdu), False);
/*
*/
if(!prs_init(&out_hdr_ba, 1024, p->mem_ctx, MARSHALL)) {
- DEBUG(0,("api_pipe_bind_req: malloc out_hdr_ba failed.\n"));
+ DEBUG(0,("api_pipe_alter_context: malloc out_hdr_ba failed.\n"));
prs_mem_free(&outgoing_rpc);
return False;
}
if(!prs_init(&out_auth, 1024, p->mem_ctx, MARSHALL)) {
- DEBUG(0,("pi_pipe_bind_req: malloc out_auth failed.\n"));
+ DEBUG(0,("api_pipe_alter_context: malloc out_auth failed.\n"));
prs_mem_free(&outgoing_rpc);
prs_mem_free(&out_hdr_ba);
return False;
}
- if (p->ntlmssp_auth_requested)
- assoc_gid = 0x7a77;
- else
- assoc_gid = hdr_rb.bba.assoc_gid ? hdr_rb.bba.assoc_gid : 0x53f0;
+ DEBUG(5,("api_pipe_alter_context: decode request. %d\n", __LINE__));
+
+ /* decode the alter context request */
+ if(!smb_io_rpc_hdr_rb("", &hdr_rb, rpc_in_p, 0)) {
+ DEBUG(0,("api_pipe_alter_context: unable to unmarshall RPC_HDR_RB struct.\n"));
+ goto err_exit;
+ }
+
+ /* secondary address CAN be NULL
+ * as the specs say it's ignored.
+ * It MUST be NULL to have the spoolss working.
+ */
+ fstrcpy(ack_pipe_name,"");
+
+ DEBUG(5,("api_pipe_alter_context: make response. %d\n", __LINE__));
+
+ /*
+ * Check if this is an authenticated alter context request.
+ */
+
+ if (p->hdr.auth_len != 0) {
+ /*
+ * Decode the authentication verifier.
+ */
+
+ if(!smb_io_rpc_hdr_auth("", &auth_info, rpc_in_p, 0)) {
+ DEBUG(0,("api_pipe_alter_context: unable to unmarshall RPC_HDR_AUTH struct.\n"));
+ goto err_exit;
+ }
+
+ /*
+ * Currently only the SPNEGO auth type uses the alter ctx
+ * response in place of the NTLMSSP auth3 type.
+ */
+
+ if (auth_info.auth_type == RPC_SPNEGO_AUTH_TYPE) {
+ /* We can only finish if the pipe is unbound. */
+ if (!p->pipe_bound) {
+ if (!pipe_spnego_auth_bind_continue(p, rpc_in_p, &auth_info, &out_auth)) {
+ goto err_exit;
+ }
+ } else {
+ goto err_exit;
+ }
+ }
+ } else {
+ ZERO_STRUCT(auth_info);
+ }
+
+ assoc_gid = hdr_rb.bba.assoc_gid ? hdr_rb.bba.assoc_gid : 0x53f0;
/*
* Create the bind response struct.
unknown to NT4)
Needed when adding entries to a DACL from NT5 - SK */
- if(check_bind_req(p, &hdr_rb.abstract, &hdr_rb.transfer, hdr_rb.context_id ))
- {
+ if(check_bind_req(p, &hdr_rb.rpc_context[0].abstract, &hdr_rb.rpc_context[0].transfer[0],
+ hdr_rb.rpc_context[0].context_id )) {
init_rpc_hdr_ba(&hdr_ba,
- MAX_PDU_FRAG_LEN,
- MAX_PDU_FRAG_LEN,
+ RPC_MAX_PDU_FRAG_LEN,
+ RPC_MAX_PDU_FRAG_LEN,
assoc_gid,
ack_pipe_name,
0x1, 0x0, 0x0,
- &hdr_rb.transfer);
+ &hdr_rb.rpc_context[0].transfer[0]);
} else {
RPC_IFACE null_interface;
ZERO_STRUCT(null_interface);
/* Rejection reason: abstract syntax not supported */
- init_rpc_hdr_ba(&hdr_ba, MAX_PDU_FRAG_LEN,
- MAX_PDU_FRAG_LEN, assoc_gid,
+ init_rpc_hdr_ba(&hdr_ba, RPC_MAX_PDU_FRAG_LEN,
+ RPC_MAX_PDU_FRAG_LEN, assoc_gid,
ack_pipe_name, 0x1, 0x2, 0x1,
&null_interface);
+ p->pipe_bound = False;
}
/*
*/
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"));
+ DEBUG(0,("api_pipe_alter_context: marshalling of RPC_HDR_BA failed.\n"));
goto err_exit;
}
/*
- * Now the authentication.
+ * Create the header, now we know the length.
*/
- if (p->ntlmssp_auth_requested) {
- RPC_AUTH_VERIFIER auth_verifier;
- RPC_AUTH_NTLMSSP_CHAL ntlmssp_chal;
-
- generate_random_buffer(p->challenge, 8);
-
- /*** Authentication info ***/
-
- init_rpc_hdr_auth(&auth_info, NTLMSSP_AUTH_TYPE, RPC_PIPE_AUTH_SEAL_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;
- }
-
- if (p->netsec_auth_validated) {
- RPC_AUTH_VERIFIER auth_verifier;
- uint32 flags;
-
- /* The client opens a second RPC NETLOGON pipe without
- doing a auth2. The credentials for the schannel are
- re-used from the auth2 the client did before. */
- p->dc = last_dcinfo;
-
- init_rpc_hdr_auth(&auth_info, NETSEC_AUTH_TYPE, auth_info.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;
- }
-
- /*** NETSEC verifier ***/
-
- init_rpc_auth_verifier(&auth_verifier, "\001", 0x0);
- if(!smb_io_rpc_netsec_verifier("", &auth_verifier, &out_auth, 0)) {
- DEBUG(0,("api_pipe_bind_req: marshalling of RPC_AUTH_VERIFIER failed.\n"));
- goto err_exit;
- }
-
- prs_align(&out_auth);
-
- flags = 5;
- if(!prs_uint32("flags ", &out_auth, 0, &flags))
- goto err_exit;
-
+ if (prs_offset(&out_auth)) {
auth_len = prs_offset(&out_auth) - RPC_HDR_AUTH_LEN;
}
- /*
- * Create the header, now we know the length.
- */
-
- init_rpc_hdr(&p->hdr, reply_pkt_type, RPC_FLG_FIRST | RPC_FLG_LAST,
+ init_rpc_hdr(&p->hdr, RPC_ALTCONTRESP, RPC_FLG_FIRST | RPC_FLG_LAST,
p->hdr.call_id,
RPC_HEADER_LEN + prs_offset(&out_hdr_ba) + prs_offset(&out_auth),
auth_len);
*/
if(!smb_io_rpc_hdr("", &p->hdr, &outgoing_rpc, 0)) {
- DEBUG(0,("pi_pipe_bind_req: marshalling of RPC_HDR failed.\n"));
+ DEBUG(0,("api_pipe_alter_context: marshalling of RPC_HDR failed.\n"));
goto err_exit;
}
*/
if(!prs_append_prs_data( &outgoing_rpc, &out_hdr_ba)) {
- DEBUG(0,("api_pipe_bind_req: append of RPC_HDR_BA failed.\n"));
+ DEBUG(0,("api_pipe_alter_context: append of RPC_HDR_BA failed.\n"));
goto err_exit;
}
- if((p->ntlmssp_auth_requested|p->netsec_auth_validated) &&
- !prs_append_prs_data( &outgoing_rpc, &out_auth)) {
- DEBUG(0,("api_pipe_bind_req: append of auth info failed.\n"));
+ if (auth_len && !prs_append_prs_data( &outgoing_rpc, &out_auth)) {
+ DEBUG(0,("api_pipe_alter_context: append of auth info failed.\n"));
goto err_exit;
}
- if(!p->ntlmssp_auth_requested)
- p->pipe_bound = True;
-
/*
* Setup the lengths for the initial reply.
*/
prs_mem_free(&outgoing_rpc);
prs_mem_free(&out_hdr_ba);
prs_mem_free(&out_auth);
- return False;
+ return setup_bind_nak(p);
}
/****************************************************************************
- Deal with sign & seal processing on an RPC request.
+ Deal with NTLMSSP sign & seal processing on an RPC request.
****************************************************************************/
-BOOL api_pipe_auth_process(pipes_struct *p, prs_struct *rpc_in)
+bool api_pipe_ntlmssp_auth_process(pipes_struct *p, prs_struct *rpc_in,
+ uint32 *p_ss_padding_len, NTSTATUS *pstatus)
{
- /*
- * We always negotiate the following two bits....
- */
- BOOL auth_verify = ((p->ntlmssp_chal_flags & NTLMSSP_NEGOTIATE_SIGN) != 0);
- BOOL auth_seal = ((p->ntlmssp_chal_flags & NTLMSSP_NEGOTIATE_SEAL) != 0);
- int data_len;
- int auth_len;
- uint32 old_offset;
- uint32 crc32 = 0;
+ RPC_HDR_AUTH auth_info;
+ uint32 auth_len = p->hdr.auth_len;
+ uint32 save_offset = prs_offset(rpc_in);
+ AUTH_NTLMSSP_STATE *a = p->auth.a_u.auth_ntlmssp_state;
+ unsigned char *data = NULL;
+ size_t data_len;
+ unsigned char *full_packet_data = NULL;
+ size_t full_packet_data_len;
+ DATA_BLOB auth_blob;
+
+ *pstatus = NT_STATUS_OK;
- auth_len = p->hdr.auth_len;
+ if (p->auth.auth_level == PIPE_AUTH_LEVEL_NONE || p->auth.auth_level == PIPE_AUTH_LEVEL_CONNECT) {
+ return True;
+ }
+
+ if (!a) {
+ *pstatus = NT_STATUS_INVALID_PARAMETER;
+ return False;
+ }
- if ((auth_len != RPC_AUTH_NTLMSSP_CHK_LEN) && auth_verify) {
- DEBUG(0,("api_pipe_auth_process: Incorrect auth_len %d.\n", auth_len ));
+ /* Ensure there's enough data for an authenticated request. */
+ if ((auth_len > RPC_MAX_SIGN_SIZE) ||
+ (RPC_HEADER_LEN + RPC_HDR_REQ_LEN + RPC_HDR_AUTH_LEN + auth_len > p->hdr.frag_len)) {
+ DEBUG(0,("api_pipe_ntlmssp_auth_process: auth_len %u is too large.\n",
+ (unsigned int)auth_len ));
+ *pstatus = NT_STATUS_INVALID_PARAMETER;
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.
+ * We need the full packet data + length (minus auth stuff) as well as the packet data + length
+ * after the RPC header.
+ * We need to pass in the full packet (minus auth len) to the NTLMSSP sign and check seal
+ * functions as NTLMv2 checks the rpc headers also.
*/
- 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));
+ data = (unsigned char *)(prs_data_p(rpc_in) + RPC_HDR_REQ_LEN);
+ data_len = (size_t)(p->hdr.frag_len - RPC_HEADER_LEN - RPC_HDR_REQ_LEN - RPC_HDR_AUTH_LEN - auth_len);
- if (auth_seal) {
- /*
- * The data in rpc_in doesn't contain the RPC_HEADER as this
- * has already been consumed.
- */
- char *data = prs_data_p(rpc_in) + RPC_HDR_REQ_LEN;
- dump_data_pw("NTLMSSP hash (v1)\n", p->ntlmssp_hash,
- sizeof(p->ntlmssp_hash));
+ full_packet_data = p->in_data.current_in_pdu;
+ full_packet_data_len = p->hdr.frag_len - auth_len;
- dump_data_pw("Incoming RPC PDU (NTLMSSP sealed)\n",
- (const unsigned char *)data, data_len);
- NTLMSSPcalc_p(p, (uchar*)data, data_len);
- dump_data_pw("Incoming RPC PDU (NTLMSSP unsealed)\n",
- (const unsigned char *)data, data_len);
- crc32 = crc32_calc_buffer(data, data_len);
+ /* Pull the auth header and the following data into a blob. */
+ if(!prs_set_offset(rpc_in, RPC_HDR_REQ_LEN + data_len)) {
+ DEBUG(0,("api_pipe_ntlmssp_auth_process: cannot move offset to %u.\n",
+ (unsigned int)RPC_HDR_REQ_LEN + (unsigned int)data_len ));
+ *pstatus = NT_STATUS_INVALID_PARAMETER;
+ return False;
}
- 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(!smb_io_rpc_hdr_auth("hdr_auth", &auth_info, rpc_in, 0)) {
+ DEBUG(0,("api_pipe_ntlmssp_auth_process: failed to unmarshall RPC_HDR_AUTH.\n"));
+ *pstatus = NT_STATUS_INVALID_PARAMETER;
+ 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"));
+ auth_blob.data = (unsigned char *)prs_data_p(rpc_in) + prs_offset(rpc_in);
+ auth_blob.length = auth_len;
+
+ switch (p->auth.auth_level) {
+ case PIPE_AUTH_LEVEL_PRIVACY:
+ /* Data is encrypted. */
+ *pstatus = ntlmssp_unseal_packet(a->ntlmssp_state,
+ data, data_len,
+ full_packet_data,
+ full_packet_data_len,
+ &auth_blob);
+ if (!NT_STATUS_IS_OK(*pstatus)) {
+ return False;
+ }
+ break;
+ case PIPE_AUTH_LEVEL_INTEGRITY:
+ /* Data is signed. */
+ *pstatus = ntlmssp_check_packet(a->ntlmssp_state,
+ data, data_len,
+ full_packet_data,
+ full_packet_data_len,
+ &auth_blob);
+ if (!NT_STATUS_IS_OK(*pstatus)) {
+ return False;
+ }
+ break;
+ default:
+ *pstatus = NT_STATUS_INVALID_PARAMETER;
return False;
- }
}
/*
* Return the current pointer to the data offset.
*/
- if(!prs_set_offset(rpc_in, old_offset)) {
+ if(!prs_set_offset(rpc_in, save_offset)) {
DEBUG(0,("api_pipe_auth_process: failed to set offset back to %u\n",
- (unsigned int)old_offset ));
+ (unsigned int)save_offset ));
+ *pstatus = NT_STATUS_INVALID_PARAMETER;
return False;
}
+ /*
+ * Remember the padding length. We must remove it from the real data
+ * stream once the sign/seal is done.
+ */
+
+ *p_ss_padding_len = auth_info.auth_pad_len;
+
return True;
}
/****************************************************************************
Deal with schannel processing on an RPC request.
****************************************************************************/
-BOOL api_pipe_netsec_process(pipes_struct *p, prs_struct *rpc_in)
+
+bool api_pipe_schannel_process(pipes_struct *p, prs_struct *rpc_in, uint32 *p_ss_padding_len)
{
- /*
- * We always negotiate the following two bits....
- */
- int data_len;
- int auth_len;
- uint32 old_offset;
+ uint32 data_len;
+ uint32 auth_len;
+ uint32 save_offset = prs_offset(rpc_in);
RPC_HDR_AUTH auth_info;
- RPC_AUTH_NETSEC_CHK netsec_chk;
-
+ RPC_AUTH_SCHANNEL_CHK schannel_chk;
auth_len = p->hdr.auth_len;
- if (auth_len != RPC_AUTH_NETSEC_SIGN_OR_SEAL_CHK_LEN) {
- DEBUG(0,("Incorrect auth_len %d.\n", auth_len ));
+ if (auth_len != RPC_AUTH_SCHANNEL_SIGN_OR_SEAL_CHK_LEN) {
+ DEBUG(0,("Incorrect auth_len %u.\n", (unsigned int)auth_len ));
return False;
}
* preceeding the auth_data.
*/
+ if (p->hdr.frag_len < RPC_HEADER_LEN + RPC_HDR_REQ_LEN + RPC_HDR_AUTH_LEN + auth_len) {
+ DEBUG(0,("Incorrect frag %u, auth %u.\n",
+ (unsigned int)p->hdr.frag_len,
+ (unsigned int)auth_len ));
+ return False;
+ }
+
data_len = p->hdr.frag_len - RPC_HEADER_LEN - RPC_HDR_REQ_LEN -
RPC_HDR_AUTH_LEN - auth_len;
DEBUG(5,("data %d auth %d\n", data_len, auth_len));
- old_offset = prs_offset(rpc_in);
-
- if(!prs_set_offset(rpc_in, old_offset + data_len)) {
+ if(!prs_set_offset(rpc_in, RPC_HDR_REQ_LEN + data_len)) {
DEBUG(0,("cannot move offset to %u.\n",
- (unsigned int)old_offset + data_len ));
+ (unsigned int)RPC_HDR_REQ_LEN + data_len ));
return False;
}
return False;
}
- if (auth_info.auth_type != NETSEC_AUTH_TYPE) {
+ if (auth_info.auth_type != RPC_SCHANNEL_AUTH_TYPE) {
DEBUG(0,("Invalid auth info %d on schannel\n",
auth_info.auth_type));
return False;
}
- if (auth_info.auth_level == RPC_PIPE_AUTH_SEAL_LEVEL) {
- p->netsec_auth.auth_flags = AUTH_PIPE_NETSEC|AUTH_PIPE_SIGN|AUTH_PIPE_SEAL;
- } else if (auth_info.auth_level == RPC_PIPE_AUTH_SIGN_LEVEL) {
- p->netsec_auth.auth_flags = AUTH_PIPE_NETSEC|AUTH_PIPE_SIGN;
- } else {
- DEBUG(0,("Invalid auth level %d on schannel\n",
- auth_info.auth_level));
- return False;
- }
-
- if(!smb_io_rpc_auth_netsec_chk("", RPC_AUTH_NETSEC_SIGN_OR_SEAL_CHK_LEN,
- &netsec_chk, rpc_in, 0))
- {
- DEBUG(0,("failed to unmarshal RPC_AUTH_NETSEC_CHK.\n"));
+ if(!smb_io_rpc_auth_schannel_chk("", RPC_AUTH_SCHANNEL_SIGN_OR_SEAL_CHK_LEN, &schannel_chk, rpc_in, 0)) {
+ DEBUG(0,("failed to unmarshal RPC_AUTH_SCHANNEL_CHK.\n"));
return False;
}
- if (!netsec_decode(&p->netsec_auth,
- p->netsec_auth.auth_flags,
+ if (!schannel_decode(p->auth.a_u.schannel_auth,
+ p->auth.auth_level,
SENDER_IS_INITIATOR,
- &netsec_chk,
- prs_data_p(rpc_in)+old_offset, data_len)) {
+ &schannel_chk,
+ prs_data_p(rpc_in)+RPC_HDR_REQ_LEN, data_len)) {
DEBUG(3,("failed to decode PDU\n"));
return False;
}
* Return the current pointer to the data offset.
*/
- if(!prs_set_offset(rpc_in, old_offset)) {
+ if(!prs_set_offset(rpc_in, save_offset)) {
DEBUG(0,("failed to set offset back to %u\n",
- (unsigned int)old_offset ));
+ (unsigned int)save_offset ));
return False;
}
/* The sequence number gets incremented on both send and receive. */
- p->netsec_auth.seq_num++;
+ p->auth.a_u.schannel_auth->seq_num++;
+
+ /*
+ * Remember the padding length. We must remove it from the real data
+ * stream once the sign/seal is done.
+ */
+
+ *p_ss_padding_len = auth_info.auth_pad_len;
return True;
}
struct current_user *get_current_user(struct current_user *user, pipes_struct *p)
{
- if (p->ntlmssp_auth_validated) {
+ if (p->pipe_bound &&
+ (p->auth.auth_type == PIPE_AUTH_TYPE_NTLMSSP ||
+ (p->auth.auth_type == PIPE_AUTH_TYPE_SPNEGO_NTLMSSP))) {
memcpy(user, &p->pipe_user, sizeof(struct current_user));
} else {
- extern struct current_user current_user;
memcpy(user, ¤t_user, sizeof(struct current_user));
}
}
/****************************************************************************
- memory cleanup
+ Memory cleanup.
****************************************************************************/
void free_pipe_rpc_context( PIPE_RPC_FNS *list )
before doing the call.
****************************************************************************/
-BOOL api_pipe_request(pipes_struct *p)
+bool api_pipe_request(pipes_struct *p)
{
- BOOL ret = False;
+ bool ret = False;
+ bool changed_user = False;
PIPE_RPC_FNS *pipe_fns;
- if (p->ntlmssp_auth_validated) {
-
+ if (p->pipe_bound &&
+ ((p->auth.auth_type == PIPE_AUTH_TYPE_NTLMSSP) ||
+ (p->auth.auth_type == PIPE_AUTH_TYPE_SPNEGO_NTLMSSP))) {
if(!become_authenticated_pipe_user(p)) {
prs_mem_free(&p->out_data.rdata);
return False;
}
+ changed_user = True;
}
DEBUG(5, ("Requested \\PIPE\\%s\n", p->name));
pipe_fns = find_pipe_fns_by_context(p->contexts, p->hdr_req.context_id);
if ( pipe_fns ) {
- set_current_rpc_talloc(p->mem_ctx);
+ TALLOC_CTX *frame = talloc_stackframe();
ret = api_rpcTNP(p, p->name, pipe_fns->cmds, pipe_fns->n_cmds);
- set_current_rpc_talloc(NULL);
+ TALLOC_FREE(frame);
}
else {
DEBUG(0,("api_pipe_request: No rpc function table associated with context [%d] on pipe [%s]\n",
p->hdr_req.context_id, p->name));
}
- if(p->ntlmssp_auth_validated)
+ if (changed_user) {
unbecome_authenticated_pipe_user();
+ }
return ret;
}
Calls the underlying RPC function for a named pipe.
********************************************************************/
-BOOL api_rpcTNP(pipes_struct *p, const char *rpc_name,
+bool api_rpcTNP(pipes_struct *p, const char *rpc_name,
const struct api_struct *api_rpc_cmds, int n_cmds)
{
int fn_num;
* and not put the pipe into fault state. JRA.
*/
DEBUG(4, ("unknown\n"));
- setup_fault_pdu(p, NT_STATUS(0x1c010002));
+ setup_fault_pdu(p, NT_STATUS(DCERPC_FAULT_OP_RNG_ERROR));
return True;
}
if (p->bad_handle_fault_state) {
DEBUG(4,("api_rpcTNP: bad handle fault return.\n"));
p->bad_handle_fault_state = False;
- setup_fault_pdu(p, NT_STATUS(0x1C00001A));
+ setup_fault_pdu(p, NT_STATUS(DCERPC_FAULT_CONTEXT_MISMATCH));
+ return True;
+ }
+
+ if (p->rng_fault_state) {
+ DEBUG(4, ("api_rpcTNP: rng fault return\n"));
+ p->rng_fault_state = False;
+ setup_fault_pdu(p, NT_STATUS(DCERPC_FAULT_OP_RNG_ERROR));
return True;
}
if ((DEBUGLEVEL >= 10) &&
(prs_offset(&p->in_data.data) != prs_data_size(&p->in_data.data))) {
size_t data_len = prs_data_size(&p->in_data.data) - prs_offset(&p->in_data.data);
- char *data;
-
- data = malloc(data_len);
+ char *data = (char *)SMB_MALLOC(data_len);
DEBUG(10, ("api_rpcTNP: rpc input buffer underflow (parse error?)\n"));
if (data) {
switch ( idx ) {
case PI_LSARPC:
- lsa_get_pipe_fns( &cmds, &n_cmds );
+ lsarpc_get_pipe_fns( &cmds, &n_cmds );
break;
- case PI_LSARPC_DS:
- lsa_ds_get_pipe_fns( &cmds, &n_cmds );
+ case PI_DSSETUP:
+ dssetup_get_pipe_fns( &cmds, &n_cmds );
break;
case PI_SAMR:
samr_get_pipe_fns( &cmds, &n_cmds );
break;
case PI_NETLOGON:
- netlog_get_pipe_fns( &cmds, &n_cmds );
+ netlogon_get_pipe_fns( &cmds, &n_cmds );
break;
case PI_SRVSVC:
- srvsvc_get_pipe_fns( &cmds, &n_cmds );
+ srvsvc2_get_pipe_fns( &cmds, &n_cmds );
break;
case PI_WKSSVC:
wkssvc_get_pipe_fns( &cmds, &n_cmds );
break;
case PI_WINREG:
- reg_get_pipe_fns( &cmds, &n_cmds );
+ winreg_get_pipe_fns( &cmds, &n_cmds );
break;
case PI_SPOOLSS:
spoolss_get_pipe_fns( &cmds, &n_cmds );
case PI_NETDFS:
netdfs_get_pipe_fns( &cmds, &n_cmds );
break;
+ case PI_SVCCTL:
+ svcctl2_get_pipe_fns( &cmds, &n_cmds );
+ break;
+ case PI_EVENTLOG:
+ eventlog2_get_pipe_fns( &cmds, &n_cmds );
+ break;
+ case PI_NTSVCS:
+ ntsvcs2_get_pipe_fns( &cmds, &n_cmds );
+ break;
#ifdef DEVELOPER
- case PI_ECHO:
- echo_get_pipe_fns( &cmds, &n_cmds );
+ case PI_RPCECHO:
+ rpcecho_get_pipe_fns( &cmds, &n_cmds );
break;
#endif
default:
return;
}
-
-
git.samba.org / gd / samba / .git / blobdiff