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/*
Unix SMB/Netbios implementation.
Version 1.9.
Pipe SMB utility routines
Copyright (C) Andrew Tridgell 1992-1997,
Copyright (C) Luke Kenneth Casson Leighton 1996-1997.
Copyright (C) Paul Ashton 1997.
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 2 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
*/
/*
This file handles reply_ calls on named pipes that the server
makes to handle specific protocols
*/
#include "includes.h"
#include "trans2.h"
extern int DEBUGLEVEL;
/* this function is due to be replaced */
void initrpcreply(char *inbuf, char *q)
{
uint32 callid;
SCVAL(q, 0, 5); q++; /* RPC version 5 */
SCVAL(q, 0, 0); q++; /* minor version 0 */
SCVAL(q, 0, 2); q++; /* RPC response packet */
SCVAL(q, 0, 3); q++; /* first frag + last frag */
RSIVAL(q, 0, 0x10000000); q += 4; /* packed data representation */
RSSVAL(q, 0, 0); q += 2; /* fragment length, fill in later */
SSVAL(q, 0, 0); q += 2; /* authentication length */
callid = RIVAL(inbuf, 12);
RSIVAL(q, 0, callid); q += 4; /* call identifier - match incoming RPC */
SIVAL(q, 0, 0x18); q += 4; /* allocation hint (no idea) */
SSVAL(q, 0, 0); q += 2; /* presentation context identifier */
SCVAL(q, 0, 0); q++; /* cancel count */
SCVAL(q, 0, 0); q++; /* reserved */
}
/* this function is due to be replaced */
void endrpcreply(char *inbuf, char *q, int datalen, int rtnval, int *rlen)
{
SSVAL(q, 8, datalen + 4);
SIVAL(q,0x10,datalen+4-0x18); /* allocation hint */
SIVAL(q, datalen, rtnval);
*rlen = datalen + 4;
{ int fd; fd = open("/tmp/rpc", O_RDWR); write(fd, q, datalen + 4); }
}
/* RID username mapping function. just for fun, it maps to the unix uid */
uint32 name_to_rid(char *user_name)
{
struct passwd *pw = Get_Pwnam(user_name, False);
if (!pw)
{
DEBUG(1,("Username %s is invalid on this system\n", user_name));
return (uint32)(-1);
}
return (uint32)(pw->pw_uid);
}
/* BIG NOTE: this function only does SIDS where the identauth is not >= 2^32 */
char *dom_sid_to_string(DOM_SID *sid)
{
static pstring sidstr;
char subauth[16];
int i;
uint32 ia = (sid->id_auth[0]) +
(sid->id_auth[1] << 8 ) +
(sid->id_auth[2] << 16) +
(sid->id_auth[3] << 24);
sprintf(sidstr, "S-%d-%d", sid->sid_no, ia);
for (i = 0; i < sid->num_auths; i++)
{
sprintf(subauth, "-%d", sid->sub_auths[i]);
strcat(sidstr, subauth);
}
DEBUG(5,("dom_sid_to_string returning %s\n", sidstr));
return sidstr;
}
/* BIG NOTE: this function only does SIDS where the identauth is not >= 2^32 */
/* identauth >= 2^32 can be detected because it will be specified in hex */
void make_dom_sid(DOM_SID *sid, char *domsid)
{
int identauth;
char *p;
DEBUG(4,("netlogon domain SID: %s\n", domsid));
/* assume, but should check, that domsid starts "S-" */
p = strtok(domsid+2,"-");
sid->sid_no = atoi(p);
/* identauth in decimal should be < 2^32 */
/* identauth in hex should be >= 2^32 */
identauth = atoi(strtok(0,"-"));
DEBUG(4,("netlogon rev %d\n", sid->sid_no));
DEBUG(4,("netlogon %s ia %d\n", p, identauth));
sid->id_auth[0] = 0;
sid->id_auth[1] = 0;
sid->id_auth[2] = (identauth & 0xff000000) >> 24;
sid->id_auth[3] = (identauth & 0x00ff0000) >> 16;
sid->id_auth[4] = (identauth & 0x0000ff00) >> 8;
sid->id_auth[5] = (identauth & 0x000000ff);
sid->num_auths = 0;
while ((p = strtok(0, "-")) != NULL)
{
sid->sub_auths[sid->num_auths++] = atoi(p);
}
}
void create_rpc_reply(RPC_HDR *hdr, uint32 call_id, int data_len)
{
if (hdr == NULL) return;
hdr->major = 5; /* RPC version 5 */
hdr->minor = 0; /* minor version 0 */
hdr->pkt_type = 2; /* RPC response packet */
hdr->frag = 3; /* first frag + last frag */
hdr->pack_type = 1; /* packed data representation */
hdr->frag_len = data_len; /* fragment length, fill in later */
hdr->auth_len = 0; /* authentication length */
hdr->call_id = call_id; /* call identifier - match incoming RPC */
hdr->alloc_hint = data_len - 0x18; /* allocation hint (no idea) */
hdr->context_id = 0; /* presentation context identifier */
hdr->cancel_count = 0; /* cancel count */
hdr->reserved = 0; /* reserved */
}
int make_rpc_reply(char *inbuf, char *q, int data_len)
{
uint32 callid = RIVAL(inbuf, 12);
RPC_HDR hdr;
create_rpc_reply(&hdr, callid, data_len);
return smb_io_rpc_hdr(False, &hdr, q, q, 4, 0) - q;
}
void make_uni_hdr(UNIHDR *hdr, int max_len, int len, uint16 terminate)
{
hdr->uni_max_len = max_len;
hdr->uni_str_len = len;
hdr->undoc = terminate;
}
void make_uni_hdr2(UNIHDR2 *hdr, int max_len, int len, uint16 terminate)
{
make_uni_hdr(&(hdr->unihdr), max_len, len, terminate);
hdr->undoc_buffer = len > 0 ? 1 : 0;
}
void make_unistr(UNISTR *str, char *buf)
{
/* store the string (null-terminated copy) */
PutUniCode((char *)(str->buffer), buf);
}
void make_unistr2(UNISTR2 *str, char *buf, int len)
{
/* set up string lengths. add one if string is not null-terminated */
str->uni_max_len = len;
str->undoc = 0;
str->uni_str_len = len;
/* store the string (null-terminated copy) */
PutUniCode((char *)str->buffer, buf);
}
void make_dom_rid2(DOM_RID2 *rid2, uint32 rid)
{
rid2->type = 0x5;
rid2->undoc = 0x5;
rid2->rid = rid;
rid2->rid_idx = 0;
}
void make_dom_sid2(DOM_SID2 *sid2, char *sid_str)
{
int len_sid_str = strlen(sid_str);
sid2->type = 0x5;
sid2->undoc = 0;
make_uni_hdr2(&(sid2->hdr), len_sid_str, len_sid_str, 0);
make_unistr (&(sid2->str), sid_str);
}
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