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-rw-r--r--source3/lib/msrpc_use.c321
1 files changed, 321 insertions, 0 deletions
diff --git a/source3/lib/msrpc_use.c b/source3/lib/msrpc_use.c
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+++ b/source3/lib/msrpc_use.c
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+/*
+ Unix SMB/Netbios implementation.
+ Version 1.9.
+ SMB client generic functions
+ Copyright (C) Andrew Tridgell 1994-1999
+ Copyright (C) Luke Kenneth Casson Leighton 1996-1999
+
+ 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.
+*/
+
+#define NO_SYSLOG
+
+#include "includes.h"
+#include "trans2.h"
+
+extern int DEBUGLEVEL;
+extern pstring scope;
+extern pstring global_myname;
+
+struct msrpc_use
+{
+ struct msrpc_state *cli;
+ uint32 num_users;
+};
+
+static struct msrpc_use **msrpcs = NULL;
+uint32 num_msrpcs = 0;
+
+/****************************************************************************
+terminate client connection
+****************************************************************************/
+static void msrpc_use_free(struct msrpc_use *cli)
+{
+ if (cli->cli != NULL)
+ {
+ if (cli->cli->initialised)
+ {
+ msrpc_shutdown(cli->cli);
+ }
+ free(cli->cli);
+ }
+
+ free(cli);
+}
+
+/****************************************************************************
+free a client array
+****************************************************************************/
+static void free_msrpc_array(uint32 num_entries, struct msrpc_use **entries)
+{
+ void(*fn)(void*) = (void(*)(void*))&msrpc_use_free;
+ free_void_array(num_entries, (void**)entries, *fn);
+}
+
+/****************************************************************************
+add a client state to the array
+****************************************************************************/
+static struct msrpc_use* add_msrpc_to_array(uint32 *len,
+ struct msrpc_use ***array,
+ struct msrpc_use *cli)
+{
+ int i;
+ for (i = 0; i < num_msrpcs; i++)
+ {
+ if (msrpcs[i] == NULL)
+ {
+ msrpcs[i] = cli;
+ return cli;
+ }
+ }
+
+ return (struct msrpc_use*)add_item_to_array(len,
+ (void***)array, (void*)cli);
+
+}
+
+/****************************************************************************
+initiate client array
+****************************************************************************/
+void init_msrpc_use(void)
+{
+ msrpcs = NULL;
+ num_msrpcs = 0;
+}
+
+/****************************************************************************
+terminate client array
+****************************************************************************/
+void free_msrpc_use(void)
+{
+ free_msrpc_array(num_msrpcs, msrpcs);
+ init_msrpc_use();
+}
+
+/****************************************************************************
+find client state. server name, user name, domain name and password must all
+match.
+****************************************************************************/
+static struct msrpc_use *msrpc_find(const char* pipe_name,
+ const struct user_credentials *usr_creds)
+{
+ int i;
+ struct user_credentials null_usr;
+
+ copy_user_creds(&null_usr, usr_creds);
+ usr_creds = &null_usr;
+
+ DEBUG(10,("msrpc_find: %s %s %s\n",
+ pipe_name,
+ usr_creds->user_name,
+ usr_creds->domain));
+
+ for (i = 0; i < num_msrpcs; i++)
+ {
+ char *msrpc_name = NULL;
+ struct msrpc_use *c = msrpcs[i];
+
+ if (c == NULL) continue;
+
+ msrpc_name = c->cli->pipe_name;
+
+ DEBUG(10,("msrpc_find[%d]: %s %s %s\n",
+ i, msrpc_name,
+ c->cli->usr.user_name,
+ c->cli->usr.domain));
+
+ if (!strequal(msrpc_name, pipe_name))
+ {
+ continue;
+ }
+ if (!strequal(usr_creds->user_name, c->cli->usr.user_name))
+ {
+ continue;
+ }
+ if (!usr_creds->reuse &&
+ !pwd_compare(&usr_creds->pwd, &c->cli->usr.pwd))
+ {
+ DEBUG(100,("password doesn't match\n"));
+ continue;
+ }
+ if (usr_creds->domain[0] == 0)
+ {
+ return c;
+ }
+ if (strequal(usr_creds->domain, c->cli->usr.domain))
+ {
+ return c;
+ }
+ }
+
+ return NULL;
+}
+
+/****************************************************************************
+create a new client state from user credentials
+****************************************************************************/
+static struct msrpc_use *msrpc_use_get(const char* pipe_name,
+ const struct user_credentials *usr_creds)
+{
+ struct msrpc_use *cli = (struct msrpc_use*)malloc(sizeof(*cli));
+
+ if (cli == NULL)
+ {
+ return NULL;
+ }
+
+ memset(cli, 0, sizeof(*cli));
+
+ cli->cli = msrpc_initialise(NULL);
+
+ if (cli->cli == NULL)
+ {
+ return NULL;
+ }
+
+ msrpc_init_creds(cli->cli, usr_creds);
+
+ return cli;
+}
+
+/****************************************************************************
+init client state
+****************************************************************************/
+struct msrpc_state *msrpc_use_add(const char* pipe_name,
+ const struct user_credentials *usr_creds,
+ BOOL redir)
+{
+ struct msrpc_use *cli = msrpc_find(pipe_name, usr_creds);
+
+ if (cli != NULL)
+ {
+ cli->num_users++;
+ return cli->cli;
+ }
+
+ /* reuse an existing connection requested, and one was not found */
+ if (usr_creds != NULL && usr_creds->reuse && !redir)
+ {
+ return False;
+ }
+
+ /*
+ * allocate
+ */
+
+ cli = msrpc_use_get(pipe_name, usr_creds);
+ cli->cli->redirect = redir;
+
+ if (!msrpc_establish_connection(cli->cli, pipe_name))
+ {
+ DEBUG(0,("msrpc_net_use_add: connection failed\n"));
+ cli->cli = NULL;
+ msrpc_use_free(cli);
+ return NULL;
+ }
+
+ add_msrpc_to_array(&num_msrpcs, &msrpcs, cli);
+ cli->num_users++;
+
+ return cli->cli;
+}
+
+/****************************************************************************
+delete a client state
+****************************************************************************/
+BOOL msrpc_use_del(const char* pipe_name,
+ const struct user_credentials *usr_creds,
+ BOOL force_close,
+ BOOL *connection_closed)
+{
+ int i;
+
+ DEBUG(10,("msrpc_net_use_del: %s. force close: %s\n",
+ pipe_name, BOOLSTR(force_close)));
+
+ if (connection_closed != NULL)
+ {
+ *connection_closed = False;
+ }
+
+ for (i = 0; i < num_msrpcs; i++)
+ {
+ char *msrpc_name = NULL;
+
+ if (msrpcs[i] == NULL) continue;
+ if (msrpcs[i]->cli == NULL) continue;
+
+ msrpc_name = msrpcs[i]->cli->pipe_name;
+
+ if (!strequal(msrpc_name, pipe_name)) continue;
+
+ if (strequal(usr_creds->user_name,
+ msrpcs[i]->cli->usr.user_name) &&
+ strequal(usr_creds->domain,
+ msrpcs[i]->cli->usr.domain))
+ {
+ /* decrement number of users */
+ msrpcs[i]->num_users--;
+
+ DEBUG(10,("idx: %i num_users now: %d\n",
+ i, msrpcs[i]->num_users));
+
+ if (force_close || msrpcs[i]->num_users == 0)
+ {
+ msrpc_use_free(msrpcs[i]);
+ msrpcs[i] = NULL;
+ if (connection_closed != NULL)
+ {
+ *connection_closed = True;
+ }
+ }
+ return True;
+ }
+ }
+
+ return False;
+}
+
+/****************************************************************************
+enumerate client states
+****************************************************************************/
+void msrpc_net_use_enum(uint32 *num_cons, struct use_info ***use)
+{
+ int i;
+
+ *num_cons = 0;
+ *use = NULL;
+
+ for (i = 0; i < num_msrpcs; i++)
+ {
+ struct use_info item;
+
+ ZERO_STRUCT(item);
+
+ if (msrpcs[i] == NULL) continue;
+
+ item.connected = msrpcs[i]->cli != NULL ? True : False;
+
+ if (item.connected)
+ {
+ item.srv_name = msrpcs[i]->cli->pipe_name;
+ item.user_name = msrpcs[i]->cli->usr.user_name;
+ item.domain = msrpcs[i]->cli->usr.domain;
+ }
+
+ add_use_info_to_array(num_cons, use, &item);
+ }
+}
+
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