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authorGünther Deschner <gd@samba.org>2010-09-20 21:05:37 -0700
committerGünther Deschner <gd@samba.org>2010-09-20 21:05:37 -0700
commit6f47a24bc55be0ea907594a748774675a105b5e3 (patch)
treee7d33c2edda57064f0adeb720d39812b1783c86e
parentc201e494c476e3245f887c4491a909126d1c3333 (diff)
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s3-libnetapi: Fix Bug #7665, memory leak in netapi connection manager.
Guenther
-rw-r--r--source3/lib/netapi/cm.c95
1 files changed, 65 insertions, 30 deletions
diff --git a/source3/lib/netapi/cm.c b/source3/lib/netapi/cm.c
index 630c74e8d5..bff274248b 100644
--- a/source3/lib/netapi/cm.c
+++ b/source3/lib/netapi/cm.c
@@ -26,18 +26,57 @@
/********************************************************************
********************************************************************/
+struct client_ipc_connection {
+ struct client_ipc_connection *prev, *next;
+ struct cli_state *cli;
+ struct client_pipe_connection *pipe_connections;
+};
+
+struct client_pipe_connection {
+ struct client_pipe_connection *prev, *next;
+ struct rpc_pipe_client *pipe;
+};
+
+static struct client_ipc_connection *ipc_connections = NULL;
+
+/********************************************************************
+********************************************************************/
+
+static struct client_ipc_connection *ipc_cm_find(const char *server_name)
+{
+ struct client_ipc_connection *p;
+
+ for (p = ipc_connections; p; p = p->next) {
+ if (strequal(p->cli->desthost, server_name)) {
+ return p;
+ }
+ }
+
+ return NULL;
+}
+
+/********************************************************************
+********************************************************************/
+
static WERROR libnetapi_open_ipc_connection(struct libnetapi_ctx *ctx,
const char *server_name,
- struct cli_state **cli)
+ struct client_ipc_connection **pp)
{
struct user_auth_info *auth_info = NULL;
struct cli_state *cli_ipc = NULL;
+ struct client_ipc_connection *p;
- if (!ctx || !cli || !server_name) {
+ if (!ctx || !pp || !server_name) {
return WERR_INVALID_PARAM;
}
- auth_info = user_auth_info_init(NULL);
+ p = ipc_cm_find(server_name);
+ if (p) {
+ *pp = p;
+ return WERR_OK;
+ }
+
+ auth_info = user_auth_info_init(ctx);
if (!auth_info) {
return WERR_NOMEM;
}
@@ -79,30 +118,27 @@ static WERROR libnetapi_open_ipc_connection(struct libnetapi_ctx *ctx,
return WERR_CAN_NOT_COMPLETE;
}
- *cli = cli_ipc;
+ p = TALLOC_ZERO_P(ctx, struct client_ipc_connection);
+ if (p == NULL) {
+ return WERR_NOMEM;
+ }
- return WERR_OK;
-}
+ p->cli = cli_ipc;
+ DLIST_ADD(ipc_connections, p);
-/********************************************************************
-********************************************************************/
+ *pp = p;
-struct client_pipe_connection {
- struct client_pipe_connection *prev, *next;
- struct rpc_pipe_client *pipe;
- struct cli_state *cli;
-};
-
-static struct client_pipe_connection *pipe_connections;
+ return WERR_OK;
+}
/********************************************************************
********************************************************************/
WERROR libnetapi_shutdown_cm(struct libnetapi_ctx *ctx)
{
- struct client_pipe_connection *p;
+ struct client_ipc_connection *p;
- for (p = pipe_connections; p; p = p->next) {
+ for (p = ipc_connections; p; p = p->next) {
cli_shutdown(p->cli);
}
@@ -112,19 +148,19 @@ WERROR libnetapi_shutdown_cm(struct libnetapi_ctx *ctx)
/********************************************************************
********************************************************************/
-static NTSTATUS pipe_cm_find(struct cli_state *cli,
+static NTSTATUS pipe_cm_find(struct client_ipc_connection *ipc,
const struct ndr_syntax_id *interface,
struct rpc_pipe_client **presult)
{
struct client_pipe_connection *p;
- for (p = pipe_connections; p; p = p->next) {
+ for (p = ipc->pipe_connections; p; p = p->next) {
if (!rpc_pipe_np_smb_conn(p->pipe)) {
return NT_STATUS_PIPE_EMPTY;
}
- if (strequal(cli->desthost, p->pipe->desthost)
+ if (strequal(ipc->cli->desthost, p->pipe->desthost)
&& ndr_syntax_id_equal(&p->pipe->abstract_syntax,
interface)) {
*presult = p->pipe;
@@ -139,7 +175,7 @@ static NTSTATUS pipe_cm_find(struct cli_state *cli,
********************************************************************/
static NTSTATUS pipe_cm_connect(TALLOC_CTX *mem_ctx,
- struct cli_state *cli,
+ struct client_ipc_connection *ipc,
const struct ndr_syntax_id *interface,
struct rpc_pipe_client **presult)
{
@@ -151,14 +187,13 @@ static NTSTATUS pipe_cm_connect(TALLOC_CTX *mem_ctx,
return NT_STATUS_NO_MEMORY;
}
- status = cli_rpc_pipe_open_noauth(cli, interface, &p->pipe);
+ status = cli_rpc_pipe_open_noauth(ipc->cli, interface, &p->pipe);
if (!NT_STATUS_IS_OK(status)) {
TALLOC_FREE(p);
return status;
}
- p->cli = cli;
- DLIST_ADD(pipe_connections, p);
+ DLIST_ADD(ipc->pipe_connections, p);
*presult = p->pipe;
return NT_STATUS_OK;
@@ -168,15 +203,15 @@ static NTSTATUS pipe_cm_connect(TALLOC_CTX *mem_ctx,
********************************************************************/
static NTSTATUS pipe_cm_open(TALLOC_CTX *ctx,
- struct cli_state *cli,
+ struct client_ipc_connection *ipc,
const struct ndr_syntax_id *interface,
struct rpc_pipe_client **presult)
{
- if (NT_STATUS_IS_OK(pipe_cm_find(cli, interface, presult))) {
+ if (NT_STATUS_IS_OK(pipe_cm_find(ipc, interface, presult))) {
return NT_STATUS_OK;
}
- return pipe_cm_connect(ctx, cli, interface, presult);
+ return pipe_cm_connect(ctx, ipc, interface, presult);
}
/********************************************************************
@@ -190,18 +225,18 @@ WERROR libnetapi_open_pipe(struct libnetapi_ctx *ctx,
struct rpc_pipe_client *result = NULL;
NTSTATUS status;
WERROR werr;
- struct cli_state *cli = NULL;
+ struct client_ipc_connection *ipc = NULL;
if (!presult) {
return WERR_INVALID_PARAM;
}
- werr = libnetapi_open_ipc_connection(ctx, server_name, &cli);
+ werr = libnetapi_open_ipc_connection(ctx, server_name, &ipc);
if (!W_ERROR_IS_OK(werr)) {
return werr;
}
- status = pipe_cm_open(ctx, cli, interface, &result);
+ status = pipe_cm_open(ctx, ipc, interface, &result);
if (!NT_STATUS_IS_OK(status)) {
libnetapi_set_error_string(ctx, "failed to open PIPE %s: %s",
get_pipe_name_from_syntax(talloc_tos(), interface),