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/*
Unix SMB/CIFS implementation.
Copyright (C) Rafal Szczesniak 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.
*/
/*
a composite function for getting user information via samr pipe
*/
#include "includes.h"
#include "libcli/raw/libcliraw.h"
#include "libcli/composite/composite.h"
#include "librpc/gen_ndr/ndr_samr.h"
enum userinfo_stage { USERINFO_OPENUSER, USERINFO_GETUSER, USERINFO_CLOSEUSER };
struct rpc_composite_userinfo {
struct {
struct policy_handle domain_handle;
const char *sid;
uint16_t level;
} in;
struct {
union samr_UserInfo info;
} out;
};
struct userinfo_state {
enum userinfo_stage stage;
struct dcerpc_pipe *pipe;
struct rpc_composite_userinfo io;
};
static void userinfo_handler(struct rpc_request *req);
static NTSTATUS userinfo_openuser(struct composite_context *c,
struct rpc_composite_userinfo *io)
{
struct userinfo_state *s = talloc_get_type(c->private, struct userinfo_state);
struct rpc_request *req = s->pipe->conn->pending;
struct samr_OpenUser *rep;
struct samr_QueryUserInfo r;
/* receive samr_OpenUser reply */
c->status = dcerpc_ndr_request_recv(req);
NT_STATUS_NOT_OK_RETURN(c->status);
rep = (struct samr_OpenUser*)req->ndr.struct_ptr;
/* prepare parameters for QueryUserInfo call */
r.in.user_handle = talloc_zero(c, struct policy_handle);
memcpy((void*)r.in.user_handle, (void*)rep->out.user_handle, sizeof(struct policy_handle));
r.in.level = io->in.level;
/* queue rpc call, set event handling and new state */
s->pipe->conn->pending = dcerpc_samr_QueryUserInfo_send(s->pipe, c, &r);
s->pipe->conn->pending->async.callback = userinfo_handler;
s->pipe->conn->pending->async.private = c;
s->stage = USERINFO_GETUSER;
return rep->out.result;
}
static NTSTATUS userinfo_getuser(struct composite_context *c,
struct rpc_composite_userinfo *io)
{
struct userinfo_state *s = talloc_get_type(c->private, struct userinfo_state);
struct rpc_request *req = s->pipe->conn->pending;
struct samr_QueryUserInfo *rep;
struct samr_Close r;
/* receive samr_QueryUserInfo reply */
c->status = dcerpc_ndr_request_recv(req);
NT_STATUS_NOT_OK_RETURN(c->status);
rep = (struct samr_QueryUserInfo*)req->ndr.struct_ptr;
/* prepare arguments for Close call */
r.in.handle = talloc_zero(c, struct policy_handle);
memcpy((void*)r.in.handle, (void*)rep->in.user_handle, sizeof(struct policy_handle));
/* queue rpc call, set event handling and new state */
s->pipe->conn->pending = dcerpc_samr_Close_send(s->pipe, c, &r);
s->pipe->conn->pending->async.callback = userinfo_handler;
s->pipe->conn->pending->async.private = c;
s->stage = USERINFO_CLOSEUSER;
/* copying result of composite call */
memcpy((void*)&io->out.info, (void*)rep->out.info, sizeof(union samr_UserInfo));
return rep->out.result;
}
static NTSTATUS userinfo_closeuser(struct composite_context *c,
struct rpc_composite_userinfo *io)
{
struct userinfo_state *s = talloc_get_type(c->private, struct userinfo_state);
struct rpc_request *req = s->pipe->conn->pending;
struct samr_Close *rep;
/* receive samr_Close reply */
c->status = dcerpc_ndr_request_recv(req);
NT_STATUS_NOT_OK_RETURN(c->status);
rep = (struct samr_Close*)req->ndr.struct_ptr;
/* return result */
return rep->out.result;
}
static void userinfo_handler(struct rpc_request *req)
{
struct composite_context *c = req->async.private;
struct userinfo_state *s = talloc_get_type(c->private, struct userinfo_state);
switch (s->stage) {
case USERINFO_OPENUSER:
c->status = userinfo_openuser(c, &s->io);
break;
case USERINFO_GETUSER:
c->status = userinfo_getuser(c, &s->io);
break;
case USERINFO_CLOSEUSER:
c->status = userinfo_closeuser(c, &s->io);
break;
}
if (!NT_STATUS_IS_OK(c->status)) {
/* this should be some error state instead */
c->state = RPC_REQUEST_DONE;
}
if (c->state >= RPC_REQUEST_DONE &&
c->async.fn) {
c->async.fn(c);
}
}
struct composite_context* rpc_composite_userinfo_send(struct dcerpc_pipe *p,
struct rpc_composite_userinfo *io)
{
struct composite_context *c;
struct userinfo_state *s;
struct samr_OpenUser *r;
struct dom_sid *sid;
c = talloc_zero(p, struct composite_context);
if (c == NULL) goto failure;
s = talloc_zero(c, struct userinfo_state);
if (s == NULL) goto failure;
/* copying input parameters */
memcpy((void*)&s->io.in.domain_handle, (void*)&io->in.domain_handle, sizeof(struct policy_handle));
s->io.in.sid = talloc_strdup(p, io->in.sid);
s->io.in.level = io->in.level;
sid = dom_sid_parse_talloc(c, s->io.in.sid);
c->private = s;
c->event_ctx = dcerpc_event_context(p);
/* preparing parameters to send rpc request */
r = talloc_zero(p, struct samr_OpenUser);
r->in.domain_handle = &s->io.in.domain_handle;
r->in.access_mask = 0;
r->in.rid = sid->sub_auths[sid->num_auths - 1];
/* send request */
s->pipe->conn->pending = dcerpc_samr_OpenUser_send(p, c, r);
/* callback handler */
s->pipe->conn->pending->async.callback = userinfo_handler;
s->pipe->conn->pending->async.private = c;
s->stage = USERINFO_OPENUSER;
return c;
failure:
talloc_free(c);
}
NTSTATUS rpc_composite_userinfo_recv(struct composite_context *c, TALLOC_CTX *mem_ctx)
{
NTSTATUS status;
struct userinfo_state *s;
status = composite_wait(c);
if (NT_STATUS_IS_OK(status)) {
s = talloc_get_type(c->private, struct userinfo_state);
talloc_steal(mem_ctx, &s->io.out.info);
}
talloc_free(c);
return status;
}
NTSTATUS rpc_composite_userinfo(struct dcerpc_pipe *pipe,
TALLOC_CTX *mem_ctx,
struct rpc_composite_userinfo *io)
{
struct composite_context *c = rpc_composite_userinfo_send(pipe, io);
return rpc_composite_userinfo_recv(c, mem_ctx);
}
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