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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); }
}
/* Group and User RID username mapping function */
BOOL name_to_rid(char *user_name, uint32 *u_rid, uint32 *g_rid)
{
struct passwd *pw = Get_Pwnam(user_name, False);
if (u_rid == NULL || g_rid == NULL || user_name == NULL)
{
return False;
}
if (!pw)
{
DEBUG(1,("Username %s is invalid on this system\n", user_name));
return False;
}
if (user_in_list(user_name, lp_domain_guest_users()))
{
*u_rid = DOMAIN_USER_RID_GUEST;
}
else if (user_in_list(user_name, lp_domain_admin_users()))
{
*u_rid = DOMAIN_USER_RID_ADMIN;
}
else
{
/* turn the unix UID into a Domain RID. this is what the posix
sub-system does (adds 1000 to the uid) */
*u_rid = (uint32)(pw->pw_uid + 1000);
}
/* absolutely no idea what to do about the unix GID to Domain RID mapping */
*g_rid = (uint32)(pw->pw_gid + 1000);
return True;
}
/* 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_rev_num, 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;
}
int make_dom_sids(char *sids_str, DOM_SID *sids, int max_sids)
{
char *ptr;
pstring s2;
int count;
DEBUG(4,("make_dom_sids: %s\n", sids_str));
if (sids_str == NULL || *sids_str == 0) return 0;
for (count = 0, ptr = sids_str; next_token(&ptr, s2, NULL) && count < max_sids; count++)
{
make_dom_sid(&sids[count], s2);
}
return count;
}
/* array lookup of well-known RID aliases. the purpose of these escapes me.. */
/* XXXX this structure should not have the well-known RID groups added to it,
i.e the DOMAIN_GROUP_RID_ADMIN/USER/GUEST. */
static struct
{
uint32 rid;
char *rid_name;
} rid_lookups[] =
{
{ DOMAIN_ALIAS_RID_ADMINS , "admins" },
{ DOMAIN_ALIAS_RID_USERS , "users" },
{ DOMAIN_ALIAS_RID_GUESTS , "guests" },
{ DOMAIN_ALIAS_RID_POWER_USERS , "power_users" },
{ DOMAIN_ALIAS_RID_ACCOUNT_OPS , "account_ops" },
{ DOMAIN_ALIAS_RID_SYSTEM_OPS , "system_ops" },
{ DOMAIN_ALIAS_RID_PRINT_OPS , "print_ops" },
{ DOMAIN_ALIAS_RID_BACKUP_OPS , "backup_ops" },
{ DOMAIN_ALIAS_RID_REPLICATOR , "replicator" },
{ 0 , NULL }
};
int make_dom_gids(char *gids_str, DOM_GID *gids)
{
char *ptr;
pstring s2;
int count;
DEBUG(4,("make_dom_gids: %s\n", gids_str));
if (gids_str == NULL || *gids_str == 0) return 0;
for (count = 0, ptr = gids_str; next_token(&ptr, s2, NULL) && count < LSA_MAX_GROUPS; count++)
{
/* the entries are of the form GID/ATTR, ATTR being optional.*/
char *attr;
uint32 rid = 0;
int i;
attr = strchr(s2,'/');
if (attr) *attr++ = 0;
if (!attr || !*attr) attr = "7"; /* default value for attribute is 7 */
/* look up the RID string and see if we can turn it into a rid number */
for (i = 0; rid_lookups[i].rid_name != NULL; i++)
{
if (strequal(rid_lookups[i].rid_name, s2))
{
rid = rid_lookups[i].rid;
break;
}
}
if (rid == 0) rid = atoi(s2);
if (rid == 0)
{
DEBUG(1,("make_dom_gids: unknown well-known alias RID %s/%s\n",
s2, attr));
count--;
}
else
{
gids[count].g_rid = rid;
gids[count].attr = atoi(attr);
DEBUG(5,("group id: %d attr: %d\n",
gids[count].g_rid,
gids[count].attr));
}
}
return count;
}
int create_rpc_request(uint32 call_id, uint16 op_num, char *q, int data_len)
{
RPC_HDR hdr;
/* XXXX cheat - use cancel count to store opnum */
make_rpc_header(&hdr, RPC_RESPONSE, call_id, data_len, op_num);
return smb_io_rpc_hdr(False, &hdr, q, q, 4, 0) - q;
}
int create_rpc_reply(uint32 call_id, char *q, int data_len)
{
RPC_HDR hdr;
/* XXXX cheat - use cancel count to store opnum */
make_rpc_header(&hdr, RPC_RESPONSE, call_id, data_len, 0);
return smb_io_rpc_hdr(False, &hdr, q, q, 4, 0) - q;
}
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