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https://github.com/samba-team/samba.git
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5ec1642809
in the RPC code. This change was prompted by trying to save a long (>256) character comment in the printer properties page. The new system associates a TALLOC_CTX with the pipe struct, and frees the pool on return of a complete PDU. A global TALLOC_CTX is used for the odd buffer allocated in the BUFFERxx code, and is freed in the main loop. This code works with insure, and seems to be free of memory leaks and crashes (so far) but there are probably the occasional problem with code that uses UNISTRxx structs on the stack and expects them to contain storage without doing a init_unistrXX(). This means that rpcclient will probably be horribly broken. A TALLOC_CTX also needed associating with the struct cli_state also, to make the prs_xx code there work. The main interface change is the addition of a TALLOC_CTX to the prs_init calls - used for dynamic allocation in the prs_XXX calls. Now this is in place it should make dynamic allocation of all RPC memory on unmarshall *much* easier to fix. Jeremy. (This used to be commit 0ff2ce543ee54f7364e6d839db6d06e7ef1edcf4)
412 lines
11 KiB
C
412 lines
11 KiB
C
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/*
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* Unix SMB/Netbios implementation.
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* Version 1.9.
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* RPC Pipe client / server routines
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* Copyright (C) Andrew Tridgell 1992-1997,
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* Copyright (C) Luke Kenneth Casson Leighton 1996-1997,
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* Copyright (C) Paul Ashton 1997.
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* Copyright (C) Jeremy Allison 1999.
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
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*/
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#ifdef SYSLOG
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#undef SYSLOG
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#endif
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#include "includes.h"
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extern int DEBUGLEVEL;
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/****************************************************************************
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do a server net conn enum
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****************************************************************************/
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BOOL do_srv_net_srv_conn_enum(struct cli_state *cli,
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char *server_name, char *qual_name,
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uint32 switch_value, SRV_CONN_INFO_CTR *ctr,
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uint32 preferred_len,
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ENUM_HND *hnd)
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{
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prs_struct data;
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prs_struct rdata;
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SRV_Q_NET_CONN_ENUM q_o;
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SRV_R_NET_CONN_ENUM r_o;
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if (server_name == NULL || ctr == NULL || preferred_len == 0)
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return False;
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prs_init(&data , MAX_PDU_FRAG_LEN, 4, cli->mem_ctx, MARSHALL);
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prs_init(&rdata, 0, 4, cli->mem_ctx, UNMARSHALL);
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/* create and send a MSRPC command with api SRV_NETCONNENUM */
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DEBUG(4,("SRV Net Server Connection Enum(%s, %s), level %d, enum:%8x\n",
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server_name, qual_name, switch_value, get_enum_hnd(hnd)));
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ctr->switch_value = switch_value;
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ctr->ptr_conn_ctr = 1;
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ctr->conn.info0.num_entries_read = 0;
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ctr->conn.info0.ptr_conn_info = 1;
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/* store the parameters */
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init_srv_q_net_conn_enum(&q_o, server_name, qual_name,
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switch_value, ctr,
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preferred_len,
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hnd);
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/* turn parameters into data stream */
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if(!srv_io_q_net_conn_enum("", &q_o, &data, 0)) {
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prs_mem_free(&data);
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prs_mem_free(&rdata);
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return False;
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}
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/* send the data on \PIPE\ */
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if(!rpc_api_pipe_req(cli, SRV_NETCONNENUM, &data, &rdata)) {
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prs_mem_free(&data);
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prs_mem_free(&rdata);
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return False;
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}
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prs_mem_free(&data);
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r_o.ctr = ctr;
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if(!srv_io_r_net_conn_enum("", &r_o, &rdata, 0)) {
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prs_mem_free(&rdata);
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return False;
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}
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if (r_o.status != 0) {
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/* report error code */
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DEBUG(0,("SRV_R_NET_SRV_CONN_ENUM: %s\n", get_nt_error_msg(r_o.status)));
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prs_mem_free(&rdata);
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return False;
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}
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if (r_o.ctr->switch_value != switch_value) {
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/* different switch levels. oops. */
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DEBUG(0,("SRV_R_NET_SRV_CONN_ENUM: info class %d does not match request %d\n",
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r_o.ctr->switch_value, switch_value));
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prs_mem_free(&rdata);
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return False;
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}
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prs_mem_free(&rdata);
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return True;
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}
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/****************************************************************************
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do a server net sess enum
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****************************************************************************/
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BOOL do_srv_net_srv_sess_enum(struct cli_state *cli,
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char *server_name, char *qual_name,
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uint32 switch_value, SRV_SESS_INFO_CTR *ctr,
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uint32 preferred_len,
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ENUM_HND *hnd)
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{
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prs_struct data;
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prs_struct rdata;
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SRV_Q_NET_SESS_ENUM q_o;
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SRV_R_NET_SESS_ENUM r_o;
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if (server_name == NULL || ctr == NULL || preferred_len == 0)
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return False;
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prs_init(&data , MAX_PDU_FRAG_LEN, 4, cli->mem_ctx, MARSHALL);
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prs_init(&rdata, 0, 4, cli->mem_ctx, UNMARSHALL);
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/* create and send a MSRPC command with api SRV_NETSESSENUM */
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DEBUG(4,("SRV Net Session Enum (%s), level %d, enum:%8x\n",
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server_name, switch_value, get_enum_hnd(hnd)));
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ctr->switch_value = switch_value;
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ctr->ptr_sess_ctr = 1;
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ctr->sess.info0.num_entries_read = 0;
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ctr->sess.info0.ptr_sess_info = 1;
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/* store the parameters */
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init_srv_q_net_sess_enum(&q_o, server_name, qual_name,
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switch_value, ctr,
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preferred_len,
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hnd);
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/* turn parameters into data stream */
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if(!srv_io_q_net_sess_enum("", &q_o, &data, 0)) {
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prs_mem_free(&data);
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prs_mem_free(&rdata);
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return False;
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}
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/* send the data on \PIPE\ */
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if (!rpc_api_pipe_req(cli, SRV_NETSESSENUM, &data, &rdata)) {
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prs_mem_free(&data);
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prs_mem_free(&rdata);
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return False;
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}
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prs_mem_free(&data);
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r_o.ctr = ctr;
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if(!srv_io_r_net_sess_enum("", &r_o, &rdata, 0)) {
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prs_mem_free(&rdata);
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return False;
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}
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if (r_o.status != 0) {
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/* report error code */
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DEBUG(0,("SRV_R_NET_SRV_SESS_ENUM: %s\n", get_nt_error_msg(r_o.status)));
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prs_mem_free(&rdata);
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return False;
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}
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if (r_o.ctr->switch_value != switch_value) {
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/* different switch levels. oops. */
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DEBUG(0,("SRV_R_NET_SRV_SESS_ENUM: info class %d does not match request %d\n",
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r_o.ctr->switch_value, switch_value));
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prs_mem_free(&rdata);
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return False;
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}
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prs_mem_free(&rdata);
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return True;
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}
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/****************************************************************************
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do a server net share enum
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****************************************************************************/
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BOOL do_srv_net_srv_share_enum(struct cli_state *cli,
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char *server_name,
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uint32 switch_value, SRV_R_NET_SHARE_ENUM *r_o,
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uint32 preferred_len, ENUM_HND *hnd)
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{
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prs_struct data;
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prs_struct rdata;
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SRV_Q_NET_SHARE_ENUM q_o;
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if (server_name == NULL || preferred_len == 0)
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return False;
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prs_init(&data , MAX_PDU_FRAG_LEN, 4, cli->mem_ctx, MARSHALL);
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prs_init(&rdata, 0, 4, cli->mem_ctx, UNMARSHALL);
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/* create and send a MSRPC command with api SRV_NETSHAREENUM */
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DEBUG(4,("SRV Get Share Info (%s), level %d, enum:%8x\n",
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server_name, switch_value, get_enum_hnd(hnd)));
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/* store the parameters */
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init_srv_q_net_share_enum(&q_o, server_name, switch_value,
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preferred_len, hnd);
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/* turn parameters into data stream */
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if(!srv_io_q_net_share_enum("", &q_o, &data, 0)) {
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prs_mem_free(&data);
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prs_mem_free(&rdata);
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return False;
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}
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/* send the data on \PIPE\ */
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if (!rpc_api_pipe_req(cli, SRV_NETSHAREENUM, &data, &rdata)) {
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prs_mem_free(&data);
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prs_mem_free(&rdata);
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return False;
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}
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prs_mem_free(&data);
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if(!srv_io_r_net_share_enum("", r_o, &rdata, 0)) {
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prs_mem_free(&rdata);
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return False;
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}
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if (r_o->status != 0) {
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/* report error code */
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DEBUG(0,("SRV_R_NET_SHARE_ENUM: %s\n", get_nt_error_msg(r_o->status)));
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prs_mem_free(&rdata);
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free_srv_r_net_share_enum(r_o);
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return False;
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}
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if (r_o->ctr.switch_value != switch_value) {
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/* different switch levels. oops. */
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DEBUG(0,("SRV_R_NET_SHARE_ENUM: info class %d does not match request %d\n",
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r_o->ctr.switch_value, switch_value));
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prs_mem_free(&rdata);
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free_srv_r_net_share_enum(r_o);
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return False;
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}
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prs_mem_free(&rdata);
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return True;
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}
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/****************************************************************************
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do a server net file enum
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****************************************************************************/
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BOOL do_srv_net_srv_file_enum(struct cli_state *cli,
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char *server_name, char *qual_name,
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uint32 switch_value, SRV_FILE_INFO_CTR *ctr,
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uint32 preferred_len,
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ENUM_HND *hnd)
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{
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prs_struct data;
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prs_struct rdata;
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SRV_Q_NET_FILE_ENUM q_o;
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SRV_R_NET_FILE_ENUM r_o;
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if (server_name == NULL || ctr == NULL || preferred_len == 0)
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return False;
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prs_init(&data , MAX_PDU_FRAG_LEN, 4, cli->mem_ctx, MARSHALL);
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prs_init(&rdata, 0, 4, cli->mem_ctx, UNMARSHALL);
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/* create and send a MSRPC command with api SRV_NETFILEENUM */
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DEBUG(4,("SRV Get File Info (%s), level %d, enum:%8x\n",
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server_name, switch_value, get_enum_hnd(hnd)));
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q_o.file_level = switch_value;
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ctr->switch_value = switch_value;
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ctr->ptr_file_ctr = 1;
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ctr->file.info3.num_entries_read = 0;
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ctr->file.info3.ptr_file_info = 1;
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/* store the parameters */
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init_srv_q_net_file_enum(&q_o, server_name, qual_name,
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switch_value, ctr,
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preferred_len,
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hnd);
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/* turn parameters into data stream */
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if(!srv_io_q_net_file_enum("", &q_o, &data, 0)) {
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prs_mem_free(&data);
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prs_mem_free(&rdata);
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return False;
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}
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/* send the data on \PIPE\ */
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if (!rpc_api_pipe_req(cli, SRV_NETFILEENUM, &data, &rdata)) {
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prs_mem_free(&data);
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prs_mem_free(&rdata);
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return False;
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}
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prs_mem_free(&data);
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r_o.ctr = ctr;
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if(!srv_io_r_net_file_enum("", &r_o, &rdata, 0)) {
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prs_mem_free(&rdata);
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return False;
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}
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if (r_o.status != 0) {
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/* report error code */
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DEBUG(0,("SRV_R_NET_FILE_ENUM: %s\n", get_nt_error_msg(r_o.status)));
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prs_mem_free(&rdata);
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return False;
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}
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if (r_o.ctr->switch_value != switch_value) {
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/* different switch levels. oops. */
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DEBUG(0,("SRV_R_NET_FILE_ENUM: info class %d does not match request %d\n",
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r_o.ctr->switch_value, switch_value));
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prs_mem_free(&rdata);
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return False;
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}
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prs_mem_free(&rdata);
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return True;
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}
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/****************************************************************************
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do a server get info
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****************************************************************************/
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BOOL do_srv_net_srv_get_info(struct cli_state *cli,
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char *server_name, uint32 switch_value, SRV_INFO_CTR *ctr)
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{
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prs_struct data;
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prs_struct rdata;
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SRV_Q_NET_SRV_GET_INFO q_o;
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SRV_R_NET_SRV_GET_INFO r_o;
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if (server_name == NULL || switch_value == 0 || ctr == NULL)
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return False;
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prs_init(&data , MAX_PDU_FRAG_LEN, 4, cli->mem_ctx, MARSHALL);
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prs_init(&rdata, 0, 4, cli->mem_ctx, UNMARSHALL);
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/* create and send a MSRPC command with api SRV_NET_SRV_GET_INFO */
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DEBUG(4,("SRV Get Server Info (%s), level %d\n", server_name, switch_value));
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/* store the parameters */
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init_srv_q_net_srv_get_info(&q_o, server_name, switch_value);
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/* turn parameters into data stream */
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if(!srv_io_q_net_srv_get_info("", &q_o, &data, 0)) {
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prs_mem_free(&data);
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prs_mem_free(&rdata);
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return False;
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}
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/* send the data on \PIPE\ */
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if (!rpc_api_pipe_req(cli, SRV_NET_SRV_GET_INFO, &data, &rdata)) {
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prs_mem_free(&data);
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prs_mem_free(&rdata);
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return False;
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}
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prs_mem_free(&data);
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r_o.ctr = ctr;
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if(!srv_io_r_net_srv_get_info("", &r_o, &rdata, 0)) {
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prs_mem_free(&rdata);
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return False;
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}
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if (r_o.status != 0) {
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/* report error code */
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DEBUG(0,("SRV_R_NET_SRV_GET_INFO: %s\n", get_nt_error_msg(r_o.status)));
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prs_mem_free(&rdata);
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return False;
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}
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if (r_o.ctr->switch_value != q_o.switch_value) {
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/* different switch levels. oops. */
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DEBUG(0,("SRV_R_NET_SRV_GET_INFO: info class %d does not match request %d\n",
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r_o.ctr->switch_value, q_o.switch_value));
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prs_mem_free(&rdata);
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return False;
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}
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prs_mem_free(&rdata);
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return True;
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}
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