-
/*
- * Unix SMB/Netbios implementation.
- * Version 1.9.
+ * 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) Paul Ashton 1997-1998,
+ * Copyright (C) Jeremy Allison 1999,
+ * Copyright (C) Anthony Liguori 2003.
*
* 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
*/
#include "includes.h"
-#include "nterr.h"
-extern int DEBUGLEVEL;
+#undef DBGC_CLASS
+#define DBGC_CLASS DBGC_RPC_SRV
static void NTLMSSPcalc_p( pipes_struct *p, unsigned char *data, int len)
{
unsigned char index_j = hash[257];
int ind;
- for( ind = 0; ind < len; ind++)
- {
+ for( ind = 0; ind < len; ind++) {
unsigned char tc;
unsigned char t;
}
/*******************************************************************
- turns a DCE/RPC request into a DCE/RPC reply
-
- this is where the data really should be split up into an array of
- headers and data sections.
-
+ 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_rpc_reply(pipes_struct *p,
- uint32 data_start, uint32 data_end)
+
+BOOL create_next_pdu(pipes_struct *p)
{
- char *data;
- BOOL auth_verify = IS_BITS_SET_ALL(p->ntlmssp_chal.neg_flags, NTLMSSP_NEGOTIATE_SIGN);
- BOOL auth_seal = IS_BITS_SET_ALL(p->ntlmssp_chal.neg_flags, NTLMSSP_NEGOTIATE_SEAL);
+ 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 data_len;
- uint32 auth_len;
-
- DEBUG(5,("create_rpc_reply: data_start: %d data_end: %d max_tsize: %d\n",
- data_start, data_end, p->hdr_ba.bba.max_tsize));
-
- auth_len = p->hdr.auth_len;
-
- if (p->ntlmssp_auth)
- {
- DEBUG(10,("create_rpc_reply: auth\n"));
- if (auth_len != 16)
- {
- return False;
- }
+ uint32 data_space_available;
+ uint32 data_len_left;
+ prs_struct outgoing_pdu;
+ uint32 data_pos;
+
+ /*
+ * If we're in the fault state, keep returning fault PDU's until
+ * the pipe gets closed. JRA.
+ */
+
+ if(p->fault_state) {
+ setup_fault_pdu(p, NT_STATUS(0x1c010002));
+ return True;
}
- prs_init(&p->rhdr , 0x18, 4, 0, False);
- prs_init(&p->rauth, 1024, 4, 0, False);
- prs_init(&p->rverf, 0x10, 4, 0, False);
+ memset((char *)&hdr_resp, '\0', sizeof(hdr_resp));
- p->hdr.pkt_type = RPC_RESPONSE; /* mark header as an rpc response */
+ /* Change the incoming request header to a response. */
+ p->hdr.pkt_type = RPC_RESPONSE;
- /* set up rpc header (fragmentation issues) */
- if (data_start == 0)
- {
+ /* Set up rpc header flags. */
+ if (p->out_data.data_sent_length == 0)
p->hdr.flags = RPC_FLG_FIRST;
- }
else
- {
p->hdr.flags = 0;
- }
- p->hdr_resp.alloc_hint = data_end - data_start; /* calculate remaining data to be sent */
+ /*
+ * Work out how much we can fit in a single PDU.
+ */
- if (p->hdr_resp.alloc_hint + 0x18 <= p->hdr_ba.bba.max_tsize)
- {
- p->hdr.flags |= RPC_FLG_LAST;
- p->hdr.frag_len = p->hdr_resp.alloc_hint + 0x18;
- }
- else
- {
- p->hdr.frag_len = p->hdr_ba.bba.max_tsize;
- }
+ 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);
- if (p->ntlmssp_auth)
- {
- p->hdr_resp.alloc_hint -= auth_len + 8;
+ /*
+ * 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;
}
- if (p->ntlmssp_auth)
- {
- data_len = p->hdr.frag_len - auth_len - (auth_verify ? 8 : 0) - 0x18;
+ 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;
}
- else
- {
- data_len = p->hdr.frag_len - 0x18;
+
+ /*
+ * 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, 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: failed to marshall RPC_HDR.\n"));
+ prs_mem_free(&outgoing_pdu);
+ return False;
}
- p->rhdr.data->offset.start = 0;
- p->rhdr.data->offset.end = 0x18;
+ if(!smb_io_rpc_hdr_resp("resp", &hdr_resp, &outgoing_pdu, 0)) {
+ DEBUG(0,("create_next_pdu: failed to marshall RPC_HDR_RESP.\n"));
+ prs_mem_free(&outgoing_pdu);
+ return False;
+ }
- /* store the header in the data stream */
- smb_io_rpc_hdr ("hdr" , &(p->hdr ), &(p->rhdr), 0);
- smb_io_rpc_hdr_resp("resp", &(p->hdr_resp), &(p->rhdr), 0);
+ /* Store the current offset. */
+ data_pos = prs_offset(&outgoing_pdu);
- /* don't use rdata: use rdata_i instead, which moves... */
- /* make a pointer to the rdata data, NOT A COPY */
+ /* Copy the data into the PDU. */
- p->rdata_i.data = NULL;
- prs_init(&p->rdata_i, 0, p->rdata.align, p->rdata.data->margin, p->rdata.io);
- data = mem_data(&(p->rdata.data), data_start);
- mem_create(p->rdata_i.data, data, 0, data_len, 0, False);
- p->rdata_i.offset = data_len;
+ 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));
+ prs_mem_free(&outgoing_pdu);
+ return False;
+ }
- if (auth_len > 0)
- {
+ if (p->hdr.auth_len > 0) {
uint32 crc32 = 0;
+ char *data;
- DEBUG(5,("create_rpc_reply: sign: %s seal: %s data %d auth %d\n",
- BOOLSTR(auth_verify), BOOLSTR(auth_seal), data_len, auth_len));
+ 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_len, data);
+ /*
+ * Set data to point to where we copied the data into.
+ */
+
+ data = prs_data_p(&outgoing_pdu) + data_pos;
+
+ if (auth_seal) {
+ crc32 = crc32_calc_buffer(data, data_len);
NTLMSSPcalc_p(p, (uchar*)data, data_len);
}
- if (auth_seal || auth_verify)
- {
- make_rpc_hdr_auth(&p->auth_info, 0x0a, 0x06, 0x08, (auth_verify ? 1 : 0));
- smb_io_rpc_hdr_auth("hdr_auth", &p->auth_info, &p->rauth, 0);
+ 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"));
+ prs_mem_free(&outgoing_pdu);
+ return False;
+ }
}
- if (auth_verify)
- {
- char *auth_data;
+ if (auth_verify) {
+ RPC_AUTH_NTLMSSP_CHK ntlmssp_chk;
+ char *auth_data = prs_data_p(&outgoing_pdu);
+
p->ntlmssp_seq_num++;
- make_rpc_auth_ntlmssp_chk(&p->ntlmssp_chk, NTLMSSP_SIGN_VERSION, crc32, p->ntlmssp_seq_num++);
- smb_io_rpc_auth_ntlmssp_chk("auth_sign", &(p->ntlmssp_chk), &p->rverf, 0);
- auth_data = mem_data(&p->rverf.data, 4);
- NTLMSSPcalc_p(p, (uchar*)auth_data, 12);
+ 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"));
+ prs_mem_free(&outgoing_pdu);
+ return False;
+ }
+ NTLMSSPcalc_p(p, (uchar*)auth_data, RPC_AUTH_NTLMSSP_CHK_LEN - 4);
}
}
- /* set up the data chain */
- if (p->ntlmssp_auth)
- {
- prs_link(NULL , &p->rhdr , &p->rdata_i);
- prs_link(&p->rhdr , &p->rdata_i, &p->rauth );
- prs_link(&p->rdata_i, &p->rauth , &p->rverf );
- prs_link(&p->rauth , &p->rverf , NULL );
- }
- else
- {
- prs_link(NULL , &p->rhdr , &p->rdata_i);
- prs_link(&p->rhdr, &p->rdata_i, NULL );
- }
+ /*
+ * 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 p->rhdr.data != NULL && p->rhdr.offset == 0x18;
+ prs_mem_free(&outgoing_pdu);
+ return True;
}
-static BOOL api_pipe_ntlmssp_verify(pipes_struct *p)
+/*******************************************************************
+ 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 *pwd = NULL;
- uchar null_pwd[16];
uchar lm_owf[24];
uchar nt_owf[128];
- size_t lm_owf_len;
- size_t nt_owf_len;
- size_t usr_len;
- size_t dom_len;
- size_t wks_len;
- BOOL anonymous = False;
-
- struct smb_passwd *smb_pass = NULL;
-
- user_struct *vuser = get_valid_user_struct(p->vuid);
+ int nt_pw_len;
+ int lm_pw_len;
+ fstring user_name;
+ fstring domain;
+ fstring wks;
- memset(null_pwd, 0, sizeof(null_pwd));
+ NTSTATUS nt_status;
+
+ struct auth_context *auth_context = NULL;
+ auth_usersupplied_info *user_info = NULL;
+ auth_serversupplied_info *server_info = NULL;
DEBUG(5,("api_pipe_ntlmssp_verify: checking user details\n"));
- if (vuser == NULL)
- {
- DEBUG(0,("get user struct %d failed\n", p->vuid));
- return False;
+ 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. */
+ delete_nt_token(&p->pipe_user.nt_user_token);
+ p->pipe_user.ngroups = 0;
+ SAFE_FREE( p->pipe_user.groups);
+
+ /*
+ * Setup an empty password for a guest user.
+ */
+
+ /*
+ * We always negotiate UNICODE.
+ */
+
+ 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);
}
- lm_owf_len = p->ntlmssp_resp.hdr_lm_resp.str_str_len;
- nt_owf_len = p->ntlmssp_resp.hdr_nt_resp.str_str_len;
- usr_len = p->ntlmssp_resp.hdr_usr .str_str_len;
- dom_len = p->ntlmssp_resp.hdr_domain .str_str_len;
- wks_len = p->ntlmssp_resp.hdr_wks .str_str_len;
-
- if (lm_owf_len == 0 && nt_owf_len == 0 &&
- usr_len == 0 && dom_len == 0 && wks_len == 0)
- {
- anonymous = True;
- }
- else
- {
- if (lm_owf_len == 0) return False;
- if (nt_owf_len == 0) return False;
- if (p->ntlmssp_resp.hdr_usr .str_str_len == 0) return False;
- if (p->ntlmssp_resp.hdr_domain .str_str_len == 0) return False;
- if (p->ntlmssp_resp.hdr_wks .str_str_len == 0) return False;
- }
+ DEBUG(5,("user: %s domain: %s wks: %s\n", user_name, domain, wks));
- if (lm_owf_len > sizeof(lm_owf)) return False;
- if (nt_owf_len > sizeof(nt_owf)) return False;
+ 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, p->ntlmssp_resp.lm_resp, sizeof(lm_owf));
- memcpy(nt_owf, p->ntlmssp_resp.nt_resp, sizeof(nt_owf));
+ memcpy(lm_owf, ntlmssp_resp->lm_resp, sizeof(lm_owf));
+ memcpy(nt_owf, ntlmssp_resp->nt_resp, nt_pw_len);
#ifdef DEBUG_PASSWORD
DEBUG(100,("lm, nt owfs, chal\n"));
- dump_data(100, lm_owf, sizeof(lm_owf));
- dump_data(100, nt_owf, sizeof(nt_owf));
- dump_data(100, p->ntlmssp_chal.challenge, 8);
+ 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
- memset(p->user_name, 0, sizeof(p->user_name));
- memset(p->domain , 0, sizeof(p->domain ));
- memset(p->wks , 0, sizeof(p->wks ));
+ /*
+ * Allow guest access. Patch from Shirish Kalele <kalele@veritas.com>.
+ */
- if (IS_BITS_SET_ALL(p->ntlmssp_chal.neg_flags, NTLMSSP_NEGOTIATE_UNICODE))
- {
- unibuf_to_ascii(p->user_name, p->ntlmssp_resp.user,
- MIN(p->ntlmssp_resp.hdr_usr .str_str_len/2,
- sizeof(p->user_name)-1));
- unibuf_to_ascii(p->domain , p->ntlmssp_resp.domain,
- MIN(p->ntlmssp_resp.hdr_domain.str_str_len/2,
- sizeof(p->domain )-1));
- unibuf_to_ascii(p->wks , p->ntlmssp_resp.wks,
- MIN(p->ntlmssp_resp.hdr_wks .str_str_len/2,
- sizeof(p->wks )-1));
- }
- else
- {
- fstrcpy(p->user_name, p->ntlmssp_resp.user );
- fstrcpy(p->domain , p->ntlmssp_resp.domain);
- fstrcpy(p->wks , p->ntlmssp_resp.wks );
- }
+ if (*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;
- if (anonymous)
- {
- DEBUG(5,("anonymous user session\n"));
- mdfour(vuser->dc.user_sess_key, null_pwd, 16);
- pwd = null_pwd;
- p->ntlmssp_validated = True;
}
- else
- {
- DEBUG(5,("user: %s domain: %s wks: %s\n", p->user_name, p->domain, p->wks));
- become_root(True);
- smb_pass = getsmbpwnam(p->user_name);
- p->ntlmssp_validated = pass_check_smb(smb_pass, p->domain,
- (uchar*)p->ntlmssp_chal.challenge,
- lm_owf, lm_owf_len,
- nt_owf, nt_owf_len,
- NULL, vuser->dc.user_sess_key);
- unbecome_root(True);
-
- if (smb_pass != NULL)
- {
- pwd = smb_pass->smb_passwd;
- }
+
+ 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;
}
- if (p->ntlmssp_validated && pwd != NULL)
+ /*
+ * Set up the sign/seal data.
+ */
+
{
uchar p24[24];
- NTLMSSPOWFencrypt(pwd, lm_owf, p24);
+ NTLMSSPOWFencrypt(server_info->first_8_lm_hash, lm_owf, p24);
{
unsigned char j = 0;
int ind;
k2[7] = 0xb0;
for (ind = 0; ind < 256; ind++)
- {
p->ntlmssp_hash[ind] = (unsigned char)ind;
- }
- for( ind = 0; ind < 256; ind++)
- {
+ for( ind = 0; ind < 256; ind++) {
unsigned char tc;
j += (p->ntlmssp_hash[ind] + k2[ind%8]);
p->ntlmssp_hash[256] = 0;
p->ntlmssp_hash[257] = 0;
}
+/* NTLMSSPhash(p->ntlmssp_hash, p24); */
p->ntlmssp_seq_num = 0;
- }
- else
- {
- p->ntlmssp_validated = False;
+
}
- return p->ntlmssp_validated;
-}
+ fstrcpy(p->user_name, user_name);
+ fstrcpy(p->pipe_user_name, pdb_get_username(server_info->sam_account));
+ fstrcpy(p->domain, domain);
+ fstrcpy(p->wks, wks);
-static BOOL api_pipe_ntlmssp(pipes_struct *p, prs_struct *pd)
-{
- /* receive a negotiate; send a challenge; receive a response */
- switch (p->auth_verifier.msg_type)
- {
- case NTLMSSP_NEGOTIATE:
- {
- smb_io_rpc_auth_ntlmssp_neg("", &p->ntlmssp_neg, pd, 0);
- break;
- }
- case NTLMSSP_AUTH:
- {
- smb_io_rpc_auth_ntlmssp_resp("", &p->ntlmssp_resp, pd, 0);
- if (!api_pipe_ntlmssp_verify(p))
- {
- pd->offset = 0;
- }
- break;
- }
- default:
- {
- /* NTLMSSP expected: unexpected message type */
- DEBUG(3,("unexpected message type in NTLMSSP %d\n",
- p->auth_verifier.msg_type));
+ /*
+ * Store the UNIX credential data (uid/gid pair) in the pipe structure.
+ */
+
+ if (!IS_SAM_UNIX_USER(server_info->sam_account)) {
+ DEBUG(0,("Attempted authenticated pipe with invalid user. No uid/gid in SAM_ACCOUNT\n"));
+ free_server_info(&server_info);
+ return False;
+ }
+
+ memcpy(p->session_key, server_info->session_key, sizeof(p->session_key));
+
+ p->pipe_user.uid = pdb_get_uid(server_info->sam_account);
+ p->pipe_user.gid = pdb_get_gid(server_info->sam_account);
+
+ 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);
return False;
}
}
- return (pd->offset != 0);
+ 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->ntlmssp_auth_validated = True;
+
+ free_server_info(&server_info);
+ 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 *);
+ const char *name;
+ int (*init)(void);
};
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 },
- { "browser", "ntsvcs", api_brs_rpc },
- { "svcctl", "ntsvcs", api_svcctl_rpc },
- { "NETLOGON", "lsass", api_netlog_rpc },
- { "winreg", "winreg", api_reg_rpc },
- { "spoolss", "spoolss", api_spoolss_rpc },
- { NULL, NULL, NULL }
+#ifndef RPC_LSA_DYNAMIC
+ { "lsarpc", rpc_lsa_init },
+#endif
+#ifndef RPC_SAMR_DYNAMIC
+ { "samr", rpc_samr_init },
+#endif
+#ifndef RPC_SVC_DYNAMIC
+ { "srvsvc", rpc_srv_init },
+#endif
+#ifndef RPC_WKS_DYNAMIC
+ { "wkssvc", rpc_wks_init },
+#endif
+#ifndef RPC_NETLOG_DYNAMIC
+ { "NETLOGON", rpc_net_init },
+#endif
+#ifndef RPC_REG_DYNAMIC
+ { "winreg", rpc_reg_init },
+#endif
+#ifndef RPC_SPOOLSS_DYNAMIC
+ { "spoolss", rpc_spoolss_init },
+#endif
+#ifndef RPC_DFS_DYNAMIC
+ { "netdfs", rpc_dfs_init },
+#endif
+ { NULL, NULL }
+};
+
+struct rpc_table
+{
+ struct
+ {
+ const char *clnt;
+ const char *srv;
+ } pipe;
+ struct api_struct *cmds;
+ int n_cmds;
};
-static BOOL api_pipe_bind_auth_resp(pipes_struct *p, prs_struct *pd)
+static struct rpc_table *rpc_lookup;
+static int rpc_lookup_size;
+
+/*******************************************************************
+ This is the client reply to our challenge for an authenticated
+ bind request. The challenge we sent is in p->challenge.
+*******************************************************************/
+
+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;
+
DEBUG(5,("api_pipe_bind_auth_resp: decode request. %d\n", __LINE__));
- if (p->hdr.auth_len == 0) return False;
+ 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, rpc_in_p, 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, rpc_in_p, 0)) {
+ DEBUG(0,("api_pipe_bind_auth_resp: unmarshall of RPC_AUTH_VERIFIER failed.\n"));
+ return False;
+ }
- /* decode the authentication verifier response */
- smb_io_rpc_hdr_autha("", &p->autha_info, pd, 0);
- if (pd->offset == 0) return False;
+ /*
+ * Ensure this is a NTLMSSP_AUTH packet type.
+ */
- if (!rpc_hdr_auth_chk(&(p->auth_info))) return False;
+ 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;
+ }
- smb_io_rpc_auth_ntlmssp_verifier("", &p->auth_verifier, pd, 0);
- if (pd->offset == 0) 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"));
+ return False;
+ }
- if (!rpc_auth_ntlmssp_verifier_chk(&(p->auth_verifier), "NTLMSSP", NTLMSSP_AUTH)) return False;
+ /*
+ * The following call actually checks the challenge/response data.
+ * for correctness against the given DOMAIN\user name.
+ */
- return api_pipe_ntlmssp(p, pd);
+ if (!api_pipe_ntlmssp_verify(p, &ntlmssp_resp))
+ return False;
+
+ p->pipe_bound = True
+;
+ return True;
}
-static BOOL api_pipe_fault_resp(pipes_struct *p, prs_struct *pd, uint32 status)
+/*******************************************************************
+ Marshall a bind_nak pdu.
+*******************************************************************/
+
+static BOOL setup_bind_nak(pipes_struct *p)
{
- DEBUG(5,("api_pipe_fault_resp: make response\n"));
+ prs_struct outgoing_rpc;
+ RPC_HDR nak_hdr;
+ uint16 zero = 0;
+
+ /* 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_rpc, 0, p->mem_ctx, MARSHALL);
+ prs_give_memory( &outgoing_rpc, (char *)p->out_data.current_pdu, sizeof(p->out_data.current_pdu), False);
- prs_init(&(p->rhdr ), 0x18, 4, 0, False);
- prs_init(&(p->rfault ), 0x8 , 4, 0, False);
- /***/
- /*** set up the header, response header and fault status ***/
- /***/
+ /*
+ * Initialize a bind_nak header.
+ */
- p->hdr_fault.status = status;
- p->hdr_fault.reserved = 0x0;
+ 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_resp.alloc_hint = 0x0;
- p->hdr_resp.cancel_count = 0x0;
- p->hdr_resp.reserved = 0x0;
+ /*
+ * Marshall the header into the outgoing PDU.
+ */
- make_rpc_hdr(&p->hdr, RPC_FAULT, RPC_FLG_NOCALL | RPC_FLG_FIRST | RPC_FLG_LAST,
- p->hdr.call_id,
- 0x20,
- 0);
+ if(!smb_io_rpc_hdr("", &nak_hdr, &outgoing_rpc, 0)) {
+ DEBUG(0,("setup_bind_nak: marshalling of RPC_HDR failed.\n"));
+ prs_mem_free(&outgoing_rpc);
+ return False;
+ }
+
+ /*
+ * Now add the reject reason.
+ */
- smb_io_rpc_hdr ("hdr" , &(p->hdr ), &(p->rhdr), 0);
- smb_io_rpc_hdr_resp ("resp" , &(p->hdr_resp ), &(p->rhdr), 0);
- smb_io_rpc_hdr_fault("fault", &(p->hdr_fault), &(p->rfault), 0);
- mem_realloc_data(p->rhdr.data, p->rhdr.offset);
- mem_realloc_data(p->rfault.data, p->rfault.offset);
+ if(!prs_uint16("reject code", &outgoing_rpc, 0, &zero)) {
+ prs_mem_free(&outgoing_rpc);
+ return False;
+ }
- /***/
- /*** link rpc header and fault together ***/
- /***/
+ 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_link(NULL , &p->rhdr , &p->rfault);
- prs_link(&p->rhdr, &p->rfault, NULL );
+ p->pipe_bound = False;
return True;
}
-static BOOL api_pipe_bind_and_alt_req(pipes_struct *p, prs_struct *pd, enum RPC_PKT_TYPE pkt_type)
+/*******************************************************************
+ Marshall a fault pdu.
+*******************************************************************/
+
+BOOL setup_fault_pdu(pipes_struct *p, NTSTATUS status)
{
- uint16 assoc_gid;
- fstring ack_pipe_name;
- int i = 0;
+ prs_struct outgoing_pdu;
+ RPC_HDR fault_hdr;
+ RPC_HDR_RESP hdr_resp;
+ RPC_HDR_FAULT fault_resp;
- p->ntlmssp_auth = False;
+ /* Free any memory in the current return data buffer. */
+ prs_mem_free(&p->out_data.rdata);
- DEBUG(5,("api_pipe_bind_req: decode request. %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_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 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 = status;
+ fault_resp.reserved = 0;
+
+ /*
+ * Marshall the header into the outgoing PDU.
+ */
+
+ if(!smb_io_rpc_hdr("", &fault_hdr, &outgoing_pdu, 0)) {
+ DEBUG(0,("setup_fault_pdu: marshalling of RPC_HDR failed.\n"));
+ prs_mem_free(&outgoing_pdu);
+ return False;
+ }
+
+ if(!smb_io_rpc_hdr_resp("resp", &hdr_resp, &outgoing_pdu, 0)) {
+ DEBUG(0,("setup_fault_pdu: failed to marshall RPC_HDR_RESP.\n"));
+ prs_mem_free(&outgoing_pdu);
+ return False;
+ }
+
+ if(!smb_io_rpc_hdr_fault("fault", &fault_resp, &outgoing_pdu, 0)) {
+ DEBUG(0,("setup_fault_pdu: failed to marshall RPC_HDR_FAULT.\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;
+}
- for (i = 0; api_fd_commands[i].pipe_clnt_name; i++)
+/*******************************************************************
+ Ensure a bind request has the correct abstract & transfer interface.
+ Used to reject unknown binds from Win2k.
+*******************************************************************/
+
+BOOL check_bind_req(char* pipe_name, RPC_IFACE* abstract,
+ RPC_IFACE* transfer)
+{
+ extern struct pipe_id_info pipe_names[];
+ int i=0;
+ fstring pname;
+ fstrcpy(pname,"\\PIPE\\");
+ fstrcat(pname,pipe_name);
+
+ DEBUG(3,("check_bind_req for %s\n", pname));
+
+#ifndef SUPPORT_NEW_LSARPC_UUID
+
+ /* check for the first pipe matching the name */
+
+ for ( i=0; pipe_names[i].client_pipe; i++ ) {
+ if ( strequal(pipe_names[i].client_pipe, pname) )
+ break;
+ }
+#else
+ /* 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++ )
{
- if (strequal(api_fd_commands[i].pipe_clnt_name, p->name) &&
- api_fd_commands[i].fn != NULL)
+ 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(RPC_UUID)) == 0)
+ && (transfer->version == pipe_names[i].trans_syntax.version)
+ && (memcmp(&transfer->uuid, &pipe_names[i].trans_syntax.uuid, sizeof(RPC_UUID)) == 0) )
{
- 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;
}
}
+#endif
+
+ if(pipe_names[i].client_pipe == NULL)
+ return False;
+
+#ifndef SUPPORT_NEW_LSARPC_UUID
+ /* check the abstract interface */
+ if ( (abstract->version != pipe_names[i].abstr_syntax.version)
+ || (memcmp(&abstract->uuid, &pipe_names[i].abstr_syntax.uuid, sizeof(RPC_UUID)) != 0) )
+ {
+ return False;
+ }
+
+ /* check the transfer interface */
+ if ( (transfer->version != pipe_names[i].trans_syntax.version)
+ || (memcmp(&transfer->uuid, &pipe_names[i].trans_syntax.uuid, sizeof(RPC_UUID)) != 0) )
+ {
+ return False;
+ }
+#endif
+ return True;
+}
+
+/*******************************************************************
+ Register commands to an RPC pipe
+*******************************************************************/
+int rpc_pipe_register_commands(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));
+ if (NULL == rpc_entry) {
+ rpc_lookup_size--;
+ DEBUG(0, ("rpc_pipe_register_commands: memory allocation failed\n"));
+ return 0;
+ } else {
+ rpc_lookup = rpc_entry;
+ }
+
+ 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;
+
+ return size;
+}
+
+/*******************************************************************
+ Register commands to an RPC pipe
+*******************************************************************/
+int rpc_load_module(const char *module)
+{
+#ifdef HAVE_DLOPEN
+ void *handle;
+ int (*module_init)(void);
+ pstring full_path;
+ char *error;
+
+ pstrcpy(full_path, lib_path("rpc"));
+ pstrcat(full_path, "/librpc_");
+ pstrcat(full_path, module);
+ pstrcat(full_path, ".");
+ pstrcat(full_path, shlib_ext());
+
+ handle = sys_dlopen(full_path, RTLD_LAZY);
+ if (!handle) {
+ DEBUG(0, ("Could not load requested pipe %s as %s\n",
+ module, full_path));
+ DEBUG(0, (" Error: %s\n", dlerror()));
+ return 0;
+ }
+
+ DEBUG(3, ("Module '%s' loaded\n", full_path));
+
+ module_init = sys_dlsym(handle, "rpc_pipe_init");
+ if ((error = sys_dlerror()) != NULL) {
+ DEBUG(0, ("Error trying to resolve symbol 'rpc_pipe_init' in %s: %s\n",
+ full_path, error));
+ return 0;
+ }
+
+ return module_init();
+#else
+ DEBUG(0,("Attempting to load a dynamic RPC pipe when dlopen isn't available\n"));
+ return 0;
+#endif
+}
+
+/*******************************************************************
+ Respond to a pipe bind request.
+*******************************************************************/
+
+BOOL api_pipe_bind_req(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 i = 0;
+ int auth_len = 0;
+ enum RPC_PKT_TYPE reply_pkt_type;
+
+ 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; 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;
+ }
+ }
- if (api_fd_commands[i].fn == NULL) return False;
+ if (i == rpc_lookup_size) {
+ for (i = 0; api_fd_commands[i].name; i++) {
+ if (strequal(api_fd_commands[i].name, p->name)) {
+ api_fd_commands[i].init();
+ break;
+ }
+ }
+
+ if (!api_fd_commands[i].name && !rpc_load_module(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;
+ }
+
+ 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;
+ }
+ }
+ }
/* decode the bind request */
- smb_io_rpc_hdr_rb("", &p->hdr_rb, pd, 0);
+ 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;
+ }
- if (pd->offset == 0) return False;
+ /*
+ * Check if this is an authenticated request.
+ */
- if (p->hdr.auth_len != 0)
- {
- /* decode the authentication verifier */
- smb_io_rpc_hdr_auth ("", &p->auth_info , pd, 0);
- if (pd->offset == 0) return False;
+ if (p->hdr.auth_len != 0) {
+ RPC_AUTH_VERIFIER auth_verifier;
+ RPC_AUTH_NTLMSSP_NEG ntlmssp_neg;
- p->ntlmssp_auth = p->auth_info.auth_type = 0x0a;
+ /*
+ * Decode the authentication verifier.
+ */
- if (p->ntlmssp_auth)
- {
- smb_io_rpc_auth_ntlmssp_verifier("", &p->auth_verifier, pd, 0);
- if (pd->offset == 0) return 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;
+ }
+
+ /*
+ * We only support NTLMSSP_AUTH_TYPE requests.
+ */
- p->ntlmssp_auth = strequal(p->auth_verifier.signature, "NTLMSSP");
+ 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 (p->ntlmssp_auth)
- {
- if (!api_pipe_ntlmssp(p, pd)) return False;
+ 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;
+ }
+
+ 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, rpc_in_p, 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:
- {
+ 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_ALTCONTRESP:
- {
+ case RPC_ALTCONT:
/* secondary address CAN be NULL
- * as the specs says it's ignored.
+ * as the specs say it's ignored.
* It MUST NULL to have the spoolss working.
*/
- fstrcpy(ack_pipe_name, "");
+ fstrcpy(ack_pipe_name,"");
+ reply_pkt_type = RPC_ALTCONTRESP;
break;
- }
default:
- {
return False;
- }
}
DEBUG(5,("api_pipe_bind_req: make response. %d\n", __LINE__));
- prs_init(&(p->rdata), 1024, 4, 0, False);
- prs_init(&(p->rhdr ), 0x18, 4, 0, False);
- prs_init(&(p->rauth), 1024, 4, 0, False);
- prs_init(&(p->rverf), 0x08, 4, 0, False);
- prs_init(&(p->rntlm), 1024, 4, 0, False);
+ /*
+ * 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.
+ */
- /***/
- /*** do the bind ack first ***/
- /***/
+ 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 (p->ntlmssp_auth)
- {
- assoc_gid = 0x7a77;
+ /*
+ * Setup the memory to marshall the ba header, and the
+ * auth footers.
+ */
+
+ 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;
}
- else
- {
- assoc_gid = p->hdr_rb.bba.assoc_gid;
+
+ if(!prs_init(&out_auth, 1024, p->mem_ctx, MARSHALL)) {
+ DEBUG(0,("pi_pipe_bind_req: malloc out_auth failed.\n"));
+ prs_mem_free(&outgoing_rpc);
+ prs_mem_free(&out_hdr_ba);
+ return False;
}
- make_rpc_hdr_ba(&p->hdr_ba,
- p->hdr_rb.bba.max_tsize,
- p->hdr_rb.bba.max_rsize,
+ if (p->ntlmssp_auth_requested)
+ assoc_gid = 0x7a77;
+ else
+ assoc_gid = hdr_rb.bba.assoc_gid ? hdr_rb.bba.assoc_gid : 0x53f0;
+
+ /*
+ * Create the bind response struct.
+ */
+
+ /* 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 */
+
+ if(check_bind_req(p->name, &hdr_rb.abstract, &hdr_rb.transfer)) {
+ init_rpc_hdr_ba(&hdr_ba,
+ MAX_PDU_FRAG_LEN,
+ MAX_PDU_FRAG_LEN,
assoc_gid,
ack_pipe_name,
0x1, 0x0, 0x0,
- &(p->hdr_rb.transfer));
+ &hdr_rb.transfer);
+ } 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,
+ ack_pipe_name, 0x1, 0x2, 0x1,
+ &null_interface);
+ }
+
+ /*
+ * and marshall it.
+ */
- smb_io_rpc_hdr_ba("", &p->hdr_ba, &p->rdata, 0);
- mem_realloc_data(p->rdata.data, p->rdata.offset);
+ 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 ***/
- /***/
+ /*
+ * Now the authentication.
+ */
- if (p->ntlmssp_auth)
- {
- uint8 challenge[8];
- generate_random_buffer(challenge, 8, False);
+ 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 ***/
+ /*** Authentication info ***/
- make_rpc_hdr_auth(&p->auth_info, 0x0a, 0x06, 0, 1);
- smb_io_rpc_hdr_auth("", &p->auth_info, &p->rverf, 0);
- mem_realloc_data(p->rverf.data, p->rverf.offset);
+ 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 ***/
- make_rpc_auth_ntlmssp_verifier(&p->auth_verifier,
- "NTLMSSP", NTLMSSP_CHALLENGE);
- smb_io_rpc_auth_ntlmssp_verifier("", &p->auth_verifier, &p->rauth, 0);
- mem_realloc_data(p->rauth.data, p->rauth.offset);
+ 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 ***/
- make_rpc_auth_ntlmssp_chal(&p->ntlmssp_chal,
- 0x000082b1, challenge);
- smb_io_rpc_auth_ntlmssp_chal("", &p->ntlmssp_chal, &p->rntlm, 0);
- mem_realloc_data(p->rntlm.data, p->rntlm.offset);
+ 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;
}
- /***/
- /*** then do the header, now we know the length ***/
- /***/
+ /*
+ * Create the header, now we know the length.
+ */
- make_rpc_hdr(&p->hdr, pkt_type, RPC_FLG_FIRST | RPC_FLG_LAST,
- p->hdr.call_id,
- p->rdata.offset + p->rverf.offset + p->rauth.offset + p->rntlm.offset + 0x10,
- p->rauth.offset + p->rntlm.offset);
+ init_rpc_hdr(&p->hdr, reply_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);
- smb_io_rpc_hdr("", &p->hdr, &p->rhdr, 0);
- mem_realloc_data(p->rhdr.data, p->rdata.offset);
+ /*
+ * Marshall the header into the outgoing PDU.
+ */
- /***/
- /*** link rpc header, bind acknowledgment and authentication responses ***/
- /***/
+ 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;
+ }
- if (p->ntlmssp_auth)
- {
- prs_link(NULL , &p->rhdr , &p->rdata);
- prs_link(&p->rhdr , &p->rdata, &p->rverf);
- prs_link(&p->rdata, &p->rverf, &p->rauth);
- prs_link(&p->rverf, &p->rauth, &p->rntlm);
- prs_link(&p->rauth, &p->rntlm, NULL );
+ /*
+ * 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;
}
- else
- {
- prs_link(NULL , &p->rhdr , &p->rdata);
- prs_link(&p->rhdr, &p->rdata, NULL );
+
+ 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;
}
+ if(!p->ntlmssp_auth_requested)
+ p->pipe_bound = True;
+
+ /*
+ * 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;
-}
-/*
- * 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_bind_req(pipes_struct *p, prs_struct *pd)
-{
- return api_pipe_bind_and_alt_req(p, pd, RPC_BINDACK);
-}
+ err_exit:
-static BOOL api_pipe_alt_req(pipes_struct *p, prs_struct *pd)
-{
- return api_pipe_bind_and_alt_req(p, pd, RPC_ALTCONTRESP);
+ prs_mem_free(&outgoing_rpc);
+ prs_mem_free(&out_hdr_ba);
+ prs_mem_free(&out_auth);
+ return False;
}
-static BOOL api_pipe_auth_process(pipes_struct *p, prs_struct *pd)
+/****************************************************************************
+ Deal with sign & seal processing on an RPC request.
+****************************************************************************/
+
+BOOL api_pipe_auth_process(pipes_struct *p, prs_struct *rpc_in)
{
- BOOL auth_verify = IS_BITS_SET_ALL(p->ntlmssp_chal.neg_flags, NTLMSSP_NEGOTIATE_SIGN);
- BOOL auth_seal = IS_BITS_SET_ALL(p->ntlmssp_chal.neg_flags, NTLMSSP_NEGOTIATE_SEAL);
+ /*
+ * 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;
auth_len = p->hdr.auth_len;
- if (auth_len != 16 && auth_verify)
- {
+ 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;
}
- data_len = p->hdr.frag_len - auth_len - (auth_verify ? 8 : 0) - 0x18;
+ /*
+ * 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 = mem_data(&pd->data, pd->offset);
- DEBUG(5,("api_pipe_auth_process: data %d\n", pd->offset));
+ 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;
NTLMSSPcalc_p(p, (uchar*)data, data_len);
- crc32 = crc32_calc_buffer(data_len, data);
+ crc32 = crc32_calc_buffer(data, data_len);
}
- /*** skip the data, record the offset so we can restore it again */
- old_offset = pd->offset;
+ old_offset = prs_offset(rpc_in);
- if (auth_seal || auth_verify)
- {
- pd->offset += data_len;
- smb_io_rpc_hdr_auth("hdr_auth", &p->auth_info, pd, 0);
- }
+ if (auth_seal || auth_verify) {
+ RPC_HDR_AUTH auth_info;
- if (auth_verify)
- {
- char *req_data = mem_data(&pd->data, pd->offset + 4);
- DEBUG(5,("api_pipe_auth_process: auth %d\n", pd->offset + 4));
- NTLMSSPcalc_p(p, (uchar*)req_data, 12);
- smb_io_rpc_auth_ntlmssp_chk("auth_sign", &(p->ntlmssp_chk), pd, 0);
+ 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 (!rpc_auth_ntlmssp_chk(&(p->ntlmssp_chk), crc32,
- p->ntlmssp_seq_num))
- {
+ 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;
}
}
- pd->offset = old_offset;
+ if (auth_verify) {
+ RPC_AUTH_NTLMSSP_CHK ntlmssp_chk;
+ char *req_data = prs_data_p(rpc_in) + prs_offset(rpc_in) + 4;
- return True;
-}
+ DEBUG(5,("api_pipe_auth_process: auth %d\n", prs_offset(rpc_in) + 4));
-static BOOL api_pipe_request(pipes_struct *p, prs_struct *pd)
-{
- int i = 0;
+ /*
+ * 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;
+ }
- if (p->ntlmssp_auth && p->ntlmssp_validated)
- {
- if (!api_pipe_auth_process(p, pd)) 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;
+ }
- DEBUG(0,("api_pipe_request: **** MUST CALL become_user() HERE **** \n"));
-#if 0
- become_user();
-#endif
+ if (!rpc_auth_ntlmssp_chk(&ntlmssp_chk, crc32, p->ntlmssp_seq_num)) {
+ DEBUG(0,("api_pipe_auth_process: NTLMSSP check failed.\n"));
+ return False;
+ }
}
- 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));
- return api_fd_commands[i].fn(p, pd);
- }
+ /*
+ * 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 False;
+
+ return True;
}
-BOOL rpc_command(pipes_struct *p, prs_struct *pd)
+/****************************************************************************
+ Return a user struct for a pipe user.
+****************************************************************************/
+
+struct current_user *get_current_user(struct current_user *user, pipes_struct *p)
{
- BOOL reply = False;
- DEBUG(10,("rpc_command\n"));
+ if (p->ntlmssp_auth_validated) {
+ memcpy(user, &p->pipe_user, sizeof(struct current_user));
+ } else {
+ extern struct current_user current_user;
+ memcpy(user, ¤t_user, sizeof(struct current_user));
+ }
+
+ return user;
+}
- if (pd->data == NULL) return False;
+/****************************************************************************
+ 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.
+****************************************************************************/
- /* process the rpc header */
- smb_io_rpc_hdr("", &p->hdr, pd, 0);
+BOOL api_pipe_request(pipes_struct *p)
+{
+ int i = 0;
+ BOOL ret = False;
- if (pd->offset == 0) return False;
+ if (p->ntlmssp_auth_validated) {
- switch (p->hdr.pkt_type)
- {
- case RPC_BIND :
- {
- reply = api_pipe_bind_req(p, pd);
- break;
- }
- case RPC_ALTCONT:
- {
- reply = api_pipe_alt_req(p, pd);
- break;
- }
- case RPC_REQUEST:
- {
- if (p->ntlmssp_auth && !p->ntlmssp_validated)
- {
- /* authentication _was_ requested
- and it failed. sorry, no deal!
- */
- reply = False;
- }
- else
- {
- /* read the rpc header */
- smb_io_rpc_hdr_req("req", &(p->hdr_req), pd, 0);
- reply = api_pipe_request(p, pd);
- }
- break;
- }
- case RPC_BINDRESP: /* not the real name! */
- {
- reply = api_pipe_bind_auth_resp(p, pd);
- p->ntlmssp_auth = reply;
- break;
+ if(!become_authenticated_pipe_user(p)) {
+ prs_mem_free(&p->out_data.rdata);
+ return False;
}
}
- if (!reply)
- {
- reply = api_pipe_fault_resp(p, pd, 0x1c010002);
+ DEBUG(5, ("Requested \\PIPE\\%s\n", p->name));
+
+ for (i = 0; i < rpc_lookup_size; i++) {
+ if (strequal(rpc_lookup[i].pipe.clnt, p->name)) {
+ DEBUG(3,("Doing \\PIPE\\%s\n",
+ rpc_lookup[i].pipe.clnt));
+ set_current_rpc_talloc(p->mem_ctx);
+ ret = api_rpcTNP(p, rpc_lookup[i].pipe.clnt,
+ rpc_lookup[i].cmds,
+ rpc_lookup[i].n_cmds);
+ set_current_rpc_talloc(NULL);
+ break;
+ }
}
- return reply;
-}
+ if (i == rpc_lookup_size) {
+ for (i = 0; api_fd_commands[i].name; i++) {
+ if (strequal(api_fd_commands[i].name, p->name)) {
+ api_fd_commands[i].init();
+ break;
+ }
+ }
+
+ if (!api_fd_commands[i].name) {
+ rpc_load_module(p->name);
+ }
+
+ for (i = 0; i < rpc_lookup_size; i++) {
+ if (strequal(rpc_lookup[i].pipe.clnt, p->name)) {
+ DEBUG(3,("Doing \\PIPE\\%s\n",
+ rpc_lookup[i].pipe.clnt));
+ set_current_rpc_talloc(p->mem_ctx);
+ ret = api_rpcTNP(p, rpc_lookup[i].pipe.clnt,
+ rpc_lookup[i].cmds,
+ rpc_lookup[i].n_cmds);
+ set_current_rpc_talloc(NULL);
+ break;
+ }
+ }
+ }
+
+ if(p->ntlmssp_auth_validated)
+ unbecome_authenticated_pipe_user();
+
+ return ret;
+}
/*******************************************************************
- receives a netlogon pipe and responds.
+ Calls the underlying RPC function for a named pipe.
********************************************************************/
-static BOOL api_rpc_command(pipes_struct *p,
- char *rpc_name, struct api_struct *api_rpc_cmds,
- prs_struct *data)
+
+BOOL api_rpcTNP(pipes_struct *p, const char *rpc_name,
+ const struct api_struct *api_rpc_cmds, int n_cmds)
{
int fn_num;
- DEBUG(4,("api_rpc_command: %s op 0x%x - ", rpc_name, p->hdr_req.opnum));
+ fstring name;
+ uint32 offset1, offset2;
+
+ /* 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));
+ slprintf(name, sizeof(name)-1, "in_%s", rpc_name);
+ prs_dump(name, p->hdr_req.opnum, &p->in_data.data);
+
+ for (fn_num = 0; fn_num < n_cmds; fn_num++) {
+ if (api_rpc_cmds[fn_num].opnum == p->hdr_req.opnum && api_rpc_cmds[fn_num].fn != NULL) {
+ DEBUG(3,("api_rpcTNP: rpc command: %s\n", api_rpc_cmds[fn_num].name));
break;
}
}
- if (api_rpc_cmds[fn_num].name == NULL)
- {
+ if (fn_num == n_cmds) {
+ /*
+ * For an unknown RPC just return a fault PDU but
+ * return True to allow RPC's on the pipe to continue
+ * and not put the pipe into fault state. JRA.
+ */
DEBUG(4, ("unknown\n"));
- return False;
+ setup_fault_pdu(p, NT_STATUS(0x1c010002));
+ return True;
}
- /* start off with 1024 bytes, and a large safety margin too */
- prs_init(&p->rdata, 1024, 4, SAFETY_MARGIN, False);
+ offset1 = prs_offset(&p->out_data.rdata);
+ DEBUG(6, ("api_rpc_cmds[%d].fn == %p\n",
+ fn_num, api_rpc_cmds[fn_num].fn));
/* do the actual command */
- api_rpc_cmds[fn_num].fn(p, data, &(p->rdata));
-
- if (p->rdata.data == NULL || p->rdata.offset == 0)
- {
- mem_free_data(p->rdata.data);
+ if(!api_rpc_cmds[fn_num].fn(p)) {
+ DEBUG(0,("api_rpcTNP: %s: %s failed.\n", rpc_name, api_rpc_cmds[fn_num].name));
+ prs_mem_free(&p->out_data.rdata);
return False;
}
- mem_realloc_data(p->rdata.data, p->rdata.offset);
+ 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));
+ return True;
+ }
- DEBUG(10,("called %s\n", rpc_name));
+ slprintf(name, sizeof(name)-1, "out_%s", rpc_name);
+ offset2 = prs_offset(&p->out_data.rdata);
+ prs_set_offset(&p->out_data.rdata, offset1);
+ prs_dump(name, p->hdr_req.opnum, &p->out_data.rdata);
+ prs_set_offset(&p->out_data.rdata, offset2);
- return True;
-}
+ DEBUG(5,("api_rpcTNP: called %s successfully\n", rpc_name));
+ /* Check for buffer underflow in rpc parsing */
-/*******************************************************************
- receives a netlogon pipe and responds.
- ********************************************************************/
-BOOL api_rpcTNP(pipes_struct *p, char *rpc_name, struct api_struct *api_rpc_cmds,
- prs_struct *data)
-{
- if (data == NULL || data->data == NULL)
- {
- DEBUG(2,("%s: NULL data received\n", rpc_name));
- return False;
- }
+ 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;
- /* interpret the command */
- if (!api_rpc_command(p, rpc_name, api_rpc_cmds, data))
- {
- return False;
- }
+ data = malloc(data_len);
+
+ DEBUG(10, ("api_rpcTNP: rpc input buffer underflow (parse error?)\n"));
+ if (data) {
+ prs_uint8s(False, "", &p->in_data.data, 0, (unsigned char *)data, (uint32)data_len);
+ SAFE_FREE(data);
+ }
- /* create the rpc header */
- if (!create_rpc_reply(p, 0, p->rdata.offset + (p->ntlmssp_auth ? (16 + 8) : 0)))
- {
- return False;
}
return True;
git.samba.org / samba.git / blobdiff