s4 winbind: Add support for WINBINDD_GETGRGID call

3 files changed, 208 insertions, 1 deletions

diff --git a/source4/winbind/config.mk b/source4/winbind/config.mk
index 680f7806c8..eb781cd550 100644
--- a/source4/winbind/config.mk
+++ b/source4/winbind/config.mk
@@ -41,6 +41,7 @@ WINBIND_OBJ_FILES = $(addprefix $(winbindsrcdir)/, \
 		wb_cmd_lookupsid.o \
 		wb_cmd_getdcname.o \
 		wb_cmd_getgrnam.o \
+		wb_cmd_getgrgid.o \
 		wb_cmd_getpwnam.o \
 		wb_cmd_getpwuid.o \
 		wb_cmd_userdomgroups.o \
diff --git a/source4/winbind/wb_cmd_getgrgid.c b/source4/winbind/wb_cmd_getgrgid.c
new file mode 100644
index 0000000000..80f4e9cfc3
--- /dev/null
+++ b/source4/winbind/wb_cmd_getgrgid.c
@@ -0,0 +1,177 @@
+/*
+   Unix SMB/CIFS implementation.
+
+   Backend for getgrgid
+
+   Copyright (C) Kai Blin 2007
+
+   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 3 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, see <http://www.gnu.org/licenses/>.
+*/
+
+#include "includes.h"
+#include "libcli/composite/composite.h"
+#include "winbind/wb_server.h"
+#include "winbind/wb_async_helpers.h"
+#include "winbind/wb_helper.h"
+#include "smbd/service_task.h"
+#include "libnet/libnet_proto.h"
+#include "param/param.h"
+#include "libcli/security/proto.h"
+#include "auth/credentials/credentials.h"
+
+struct cmd_getgrgid_state {
+	struct composite_context *ctx;
+	struct wbsrv_service *service;
+	gid_t gid;
+	struct dom_sid *sid;
+	char *workgroup;
+	struct wbsrv_domain *domain;
+
+	struct winbindd_gr *result;
+};
+
+static void cmd_getgrgid_recv_sid(struct composite_context *ctx);
+static void cmd_getgrgid_recv_domain(struct composite_context *ctx);
+static void cmd_getgrgid_recv_group_info(struct composite_context *ctx);
+
+/* Get the SID using the gid */
+
+struct composite_context *wb_cmd_getgrgid_send(TALLOC_CTX *mem_ctx,
+						 struct wbsrv_service *service,
+						 gid_t gid)
+{
+	struct composite_context *ctx, *result;
+	struct cmd_getgrgid_state *state;
+
+	DEBUG(5, ("wb_cmd_getgrgid_send called\n"));
+
+	result = composite_create(mem_ctx, service->task->event_ctx);
+	if (!result) return NULL;
+
+	state = talloc(result, struct cmd_getgrgid_state);
+	if (composite_nomem(state, result)) return result;
+	state->ctx = result;
+	result->private_data = state;
+	state->service = service;
+	state->gid = gid;
+
+	ctx = wb_gid2sid_send(state, service, gid);
+	if (composite_nomem(ctx, state->ctx)) return result;
+
+	composite_continue(result, ctx, cmd_getgrgid_recv_sid, state);
+	return result;
+}
+
+
+/* Receive the sid and get the domain structure with it */
+
+static void cmd_getgrgid_recv_sid(struct composite_context *ctx)
+{
+	struct cmd_getgrgid_state *state =
+		talloc_get_type(ctx->async.private_data,
+				struct cmd_getgrgid_state);
+
+	DEBUG(5, ("cmd_getgrgid_recv_sid called %p\n", ctx->private_data));
+
+	state->ctx->status = wb_gid2sid_recv(ctx, state, &state->sid);
+	if (!composite_is_ok(state->ctx)) return;
+
+	ctx = wb_sid2domain_send(state, state->service, state->sid);
+
+	composite_continue(state->ctx, ctx, cmd_getgrgid_recv_domain, state);
+}
+
+/* Receive the domain struct and call libnet to get the user info struct */
+
+static void cmd_getgrgid_recv_domain(struct composite_context *ctx)
+{
+	struct cmd_getgrgid_state *state =
+		talloc_get_type(ctx->async.private_data,
+				struct cmd_getgrgid_state);
+	struct libnet_GroupInfo *group_info;
+
+	DEBUG(5, ("cmd_getgrgid_recv_domain called\n"));
+
+	state->ctx->status = wb_sid2domain_recv(ctx, &state->domain);
+	if (!composite_is_ok(state->ctx)) return;
+
+	group_info = talloc(state, struct libnet_GroupInfo);
+	if (composite_nomem(group_info, state->ctx)) return;
+
+	group_info->in.level = GROUP_INFO_BY_SID;
+	group_info->in.data.group_sid = state->sid;
+	group_info->in.domain_name = state->domain->libnet_ctx->samr.name;
+
+	/* We need the workgroup later, so copy it  */
+	state->workgroup = talloc_strdup(state,
+			state->domain->libnet_ctx->samr.name);
+	if (composite_nomem(state->workgroup, state->ctx)) return;
+
+	ctx = libnet_GroupInfo_send(state->domain->libnet_ctx, state,group_info,
+			NULL);
+
+	composite_continue(state->ctx, ctx, cmd_getgrgid_recv_group_info,state);
+}
+
+/* Receive the group info struct */
+
+static void cmd_getgrgid_recv_group_info(struct composite_context *ctx)
+{
+	struct cmd_getgrgid_state *state =
+		talloc_get_type(ctx->async.private_data,
+				struct cmd_getgrgid_state);
+	struct libnet_GroupInfo *group_info;
+	struct winbindd_gr *gr;
+
+	DEBUG(5, ("cmd_getgrgid_recv_group_info called\n"));
+
+	gr = talloc(state, struct winbindd_gr);
+	if (composite_nomem(gr, state->ctx)) return;
+
+	group_info = talloc(state, struct libnet_GroupInfo);
+	if(composite_nomem(group_info, state->ctx)) return;
+
+	state->ctx->status = libnet_GroupInfo_recv(ctx, state, group_info);
+	if (!composite_is_ok(state->ctx)) return;
+
+	WBSRV_SAMBA3_SET_STRING(gr->gr_name, group_info->out.group_name);
+	WBSRV_SAMBA3_SET_STRING(gr->gr_passwd, "*");
+
+	gr->gr_gid = state->gid;
+
+	state->result = gr;
+
+	composite_done(state->ctx);
+}
+
+NTSTATUS wb_cmd_getgrgid_recv(struct composite_context *ctx,
+		TALLOC_CTX *mem_ctx, struct winbindd_gr **gr)
+{
+	NTSTATUS status = composite_wait(ctx);
+
+	DEBUG(5, ("wb_cmd_getgrgid_recv called\n"));
+
+	DEBUG(5, ("status is %s\n", nt_errstr(status)));
+
+	if (NT_STATUS_IS_OK(status)) {
+		struct cmd_getgrgid_state *state =
+			talloc_get_type(ctx->private_data,
+					struct cmd_getgrgid_state);
+		*gr = talloc_steal(mem_ctx, state->result);
+	}
+	talloc_free(ctx);
+	return status;
+
+}
+
diff --git a/source4/winbind/wb_samba3_cmd.c b/source4/winbind/wb_samba3_cmd.c
index dfedfec190..6cad76b08b 100644
--- a/source4/winbind/wb_samba3_cmd.c
+++ b/source4/winbind/wb_samba3_cmd.c
@@ -939,13 +939,42 @@ static void getgrnam_recv(struct composite_context *ctx)
 	wbsrv_samba3_async_epilogue(status, s3call);
 }
 
+static void getgrgid_recv(struct composite_context *ctx);
+
 NTSTATUS wbsrv_samba3_getgrgid(struct wbsrv_samba3_call *s3call)
 {
+	struct composite_context *ctx;
+	struct wbsrv_service *service = s3call->wbconn->listen_socket->service;
+
 	DEBUG(5, ("wbsrv_samba3_getgrgid called\n"));
-	s3call->response.result = WINBINDD_ERROR;
+
+	ctx = wb_cmd_getgrgid_send(s3call, service,
+			s3call->request.data.gid);
+	NT_STATUS_HAVE_NO_MEMORY(ctx);
+
+	ctx->async.fn = getgrgid_recv;
+	ctx->async.private_data = s3call;
+	s3call->flags |= WBSRV_CALL_FLAGS_REPLY_ASYNC;
 	return NT_STATUS_OK;
 }
 
+static void getgrgid_recv(struct composite_context *ctx)
+{
+	struct wbsrv_samba3_call *s3call =
+		talloc_get_type(ctx->async.private_data,
+				struct wbsrv_samba3_call);
+	NTSTATUS status;
+	struct winbindd_gr *gr;
+
+	DEBUG(5, ("getgrgid_recv called\n"));
+
+	status = wb_cmd_getgrgid_recv(ctx, s3call, &gr);
+	if (NT_STATUS_IS_OK(status))
+		s3call->response.data.gr = *gr;
+
+	wbsrv_samba3_async_epilogue(status, s3call);
+}
+
 NTSTATUS wbsrv_samba3_getgroups(struct wbsrv_samba3_call *s3call)
 {
 	DEBUG(5, ("wbsrv_samba3_getgroups called\n"));