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/*
Unix SMB/CIFS implementation.
Name lookup.
Copyright (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
(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.
*/
#include "includes.h"
#include "utils/net.h"
/********************************************************
Connection cachine struct. Goes away when ctx destroyed.
********************************************************/
struct con_struct {
BOOL failed_connect;
NTSTATUS err;
struct cli_state *cli;
struct rpc_pipe_client *lsapipe;
POLICY_HND pol;
};
static struct con_struct *cs;
/********************************************************
Close connection on context destruction.
********************************************************/
static int cs_destructor(struct con_struct *p)
{
if (cs->cli) {
cli_shutdown(cs->cli);
}
cs = NULL;
return 0;
}
/********************************************************
Create the connection to localhost.
********************************************************/
static struct con_struct *create_cs(TALLOC_CTX *ctx, NTSTATUS *perr)
{
NTSTATUS nt_status;
struct in_addr loopback_ip = *interpret_addr2("127.0.0.1");
*perr = NT_STATUS_OK;
if (cs) {
if (cs->failed_connect) {
*perr = cs->err;
return NULL;
}
return cs;
}
cs = TALLOC_P(ctx, struct con_struct);
if (!cs) {
*perr = NT_STATUS_NO_MEMORY;
return NULL;
}
ZERO_STRUCTP(cs);
talloc_set_destructor(cs, cs_destructor);
/* Connect to localhost with given username/password. */
/* JRA. Pretty sure we can just do this anonymously.... */
#if 0
if (!opt_password && !opt_machine_pass) {
char *pass = getpass("Password:");
if (pass) {
opt_password = SMB_STRDUP(pass);
}
}
#endif
nt_status = cli_full_connection(&cs->cli, global_myname(), global_myname(),
&loopback_ip, 0,
"IPC$", "IPC",
#if 0
opt_user_name,
opt_workgroup,
opt_password,
#else
"",
opt_workgroup,
"",
#endif
0,
Undefined,
NULL);
if (!NT_STATUS_IS_OK(nt_status)) {
DEBUG(2,("create_cs: Connect failed. Error was %s\n", nt_errstr(nt_status)));
cs->failed_connect = True;
cs->err = nt_status;
*perr = nt_status;
return NULL;
}
cs->lsapipe = cli_rpc_pipe_open_noauth(cs->cli,
PI_LSARPC,
&nt_status);
if (cs->lsapipe == NULL) {
DEBUG(2,("create_cs: open LSA pipe failed. Error was %s\n", nt_errstr(nt_status)));
cs->failed_connect = True;
cs->err = nt_status;
*perr = nt_status;
return NULL;
}
nt_status = rpccli_lsa_open_policy(cs->lsapipe, ctx, True,
SEC_RIGHTS_MAXIMUM_ALLOWED,
&cs->pol);
if (!NT_STATUS_IS_OK(nt_status)) {
DEBUG(2,("create_cs: rpccli_lsa_open_policy failed. Error was %s\n", nt_errstr(nt_status)));
cs->failed_connect = True;
cs->err = nt_status;
*perr = nt_status;
return NULL;
}
return cs;
}
/********************************************************
Do a lookup_sids call to localhost.
Check if the local machine is authoritative for this sid. We can't
check if this is our SID as that's stored in the root-read-only
secrets.tdb.
The local smbd will also ask winbindd for us, so we don't have to.
********************************************************/
NTSTATUS net_lookup_name_from_sid(TALLOC_CTX *ctx,
DOM_SID *psid,
const char **ppdomain,
const char **ppname)
{
NTSTATUS nt_status;
struct con_struct *csp = NULL;
char **domains;
char **names;
enum SID_NAME_USE *types;
*ppdomain = NULL;
*ppname = NULL;
csp = create_cs(ctx, &nt_status);
if (csp == NULL) {
return nt_status;
}
nt_status = rpccli_lsa_lookup_sids(csp->lsapipe, ctx,
&csp->pol,
1, psid,
&domains,
&names,
&types);
if (!NT_STATUS_IS_OK(nt_status)) {
return nt_status;
}
*ppdomain = domains[0];
*ppname = names[0];
/* Don't care about type here. */
/* Converted OK */
return NT_STATUS_OK;
}
/********************************************************
Do a lookup_names call to localhost.
********************************************************/
NTSTATUS net_lookup_sid_from_name(TALLOC_CTX *ctx, const char *full_name, DOM_SID *pret_sid)
{
NTSTATUS nt_status;
struct con_struct *csp = NULL;
DOM_SID *sids = NULL;
enum SID_NAME_USE *types = NULL;
csp = create_cs(ctx, &nt_status);
if (csp == NULL) {
return nt_status;
}
nt_status = rpccli_lsa_lookup_names(csp->lsapipe, ctx,
&csp->pol,
1,
&full_name,
NULL, &sids,
&types);
if (!NT_STATUS_IS_OK(nt_status)) {
return nt_status;
}
*pret_sid = sids[0];
/* Converted OK */
return NT_STATUS_OK;
}
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