Author: kai
Date: 2007-08-20 11:51:01 +0000 (Mon, 20 Aug 2007)
New Revision: 24577

WebSVN: 
http://websvn.samba.org/cgi-bin/viewcvs.cgi?view=rev&root=samba&rev=24577

Log:
Implement basic getpwent.

This one still cheats and only returns one winbindd_pw structure per call.
Also, doesn't get a new libnet_UserList yet.


Added:
   branches/SAMBA_4_0/source/winbind/wb_cmd_getpwent.c
Modified:
   branches/SAMBA_4_0/source/winbind/config.mk
   branches/SAMBA_4_0/source/winbind/wb_samba3_cmd.c


Changeset:
Modified: branches/SAMBA_4_0/source/winbind/config.mk
===================================================================
--- branches/SAMBA_4_0/source/winbind/config.mk 2007-08-20 11:41:36 UTC (rev 
24576)
+++ branches/SAMBA_4_0/source/winbind/config.mk 2007-08-20 11:51:01 UTC (rev 
24577)
@@ -32,6 +32,7 @@
                wb_cmd_list_trustdom.o \
                wb_cmd_list_users.o \
                wb_cmd_setpwent.o \
+               wb_cmd_getpwent.o \
                wb_pam_auth.o \
                wb_sam_logon.o
 PRIVATE_DEPENDENCIES = \

Added: branches/SAMBA_4_0/source/winbind/wb_cmd_getpwent.c
===================================================================
--- branches/SAMBA_4_0/source/winbind/wb_cmd_getpwent.c 2007-08-20 11:41:36 UTC 
(rev 24576)
+++ branches/SAMBA_4_0/source/winbind/wb_cmd_getpwent.c 2007-08-20 11:51:01 UTC 
(rev 24577)
@@ -0,0 +1,129 @@
+/*
+   Unix SMB/CIFS implementation.
+
+   Command backend for getpwent
+
+   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 "nsswitch/winbindd_nss.h"
+#include "libnet/libnet_proto.h"
+
+struct cmd_getpwent_state {
+       struct composite_context *ctx;
+       struct wbsrv_service *service;
+
+       struct wbsrv_pwent *pwent;
+       uint32_t max_users;
+
+       uint32_t num_users;
+       struct winbindd_pw *result;
+};
+
+static void cmd_getpwent_recv_pwnam(struct composite_context *ctx);
+#if 0 /*FIXME: implement this*/
+static void cmd_getpwent_recv_user_list(struct composite_context *ctx);
+#endif
+
+struct composite_context *wb_cmd_getpwent_send(TALLOC_CTX *mem_ctx,
+               struct wbsrv_service *service, struct wbsrv_pwent *pwent,
+               uint32_t max_users)
+{
+       struct composite_context *ctx, *result;
+       struct cmd_getpwent_state *state;
+
+       DEBUG(5, ("wb_cmd_getpwent_send called\n"));
+
+       result = composite_create(mem_ctx, service->task->event_ctx);
+       if (!result) return NULL;
+
+       state = talloc(mem_ctx, struct cmd_getpwent_state);
+       if (composite_nomem(state, result)) return result;
+
+       state->ctx = result;
+       result->private_data = state;
+       state->service = service;
+       state->pwent = pwent;
+       state->max_users = max_users;
+       state->num_users = 0;
+
+       /* If there are users left in the libnet_UserList and we're below the
+        * maximum number of users to get per winbind getpwent call, use
+        * getpwnam to get the winbindd_pw struct */
+       if (pwent->page_index < pwent->user_list->out.count) {
+               int idx = pwent->page_index;
+               char *username = talloc_strdup(state,
+                       pwent->user_list->out.users[idx].username);
+
+               pwent->page_index++;
+               ctx = wb_cmd_getpwnam_send(state, service, username);
+               if (composite_nomem(ctx, state->ctx)) return result;
+
+               composite_continue(state->ctx, ctx, cmd_getpwent_recv_pwnam,
+                       state);
+       } else {
+       /* If there is no valid user left, call libnet_UserList to get a new
+        * list of users. */
+               composite_error(state->ctx, NT_STATUS_NO_MORE_ENTRIES);
+       }
+       return result;
+}
+
+static void cmd_getpwent_recv_pwnam(struct composite_context *ctx)
+{
+       struct cmd_getpwent_state *state =
+               talloc_get_type(ctx->async.private_data,
+                               struct cmd_getpwent_state);
+       struct winbindd_pw *pw;
+
+       DEBUG(5, ("cmd_getpwent_recv_pwnam called\n"));
+
+       state->ctx->status = wb_cmd_getpwnam_recv(ctx, state, &pw);
+       if (!composite_is_ok(state->ctx)) return;
+
+       /*FIXME: Cheat for now and only get one user per call */
+       state->result = pw;
+
+       composite_done(state->ctx);
+}
+
+NTSTATUS wb_cmd_getpwent_recv(struct composite_context *ctx,
+               TALLOC_CTX *mem_ctx, struct winbindd_pw **pw,
+               uint32_t *num_users)
+{
+       NTSTATUS status = composite_wait(ctx);
+
+       DEBUG(5, ("wb_cmd_getpwent_recv called\n"));
+
+       if (NT_STATUS_IS_OK(status)) {
+               struct cmd_getpwent_state *state =
+                       talloc_get_type(ctx->private_data,
+                                       struct cmd_getpwent_state);
+               *pw = talloc_steal(mem_ctx, state->result);
+               /*FIXME: Cheat and only get oner user */
+               *num_users = 1;
+       }
+
+       talloc_free(ctx);
+       return status;
+}
+

Modified: branches/SAMBA_4_0/source/winbind/wb_samba3_cmd.c
===================================================================
--- branches/SAMBA_4_0/source/winbind/wb_samba3_cmd.c   2007-08-20 11:41:36 UTC 
(rev 24576)
+++ branches/SAMBA_4_0/source/winbind/wb_samba3_cmd.c   2007-08-20 11:51:01 UTC 
(rev 24577)
@@ -798,13 +798,55 @@
        wbsrv_samba3_async_epilogue(status, s3call);
 }
 
+static void getpwent_recv(struct composite_context *ctx);
+
 NTSTATUS wbsrv_samba3_getpwent(struct wbsrv_samba3_call *s3call)
 {
+       struct composite_context *ctx;
+       struct wbsrv_service *service = s3call->wbconn->listen_socket->service;
+       struct wbsrv_pwent *pwent;
+
        DEBUG(5, ("wbsrv_samba3_getpwent called\n"));
-       s3call->response.result = WINBINDD_ERROR;
+
+       NT_STATUS_HAVE_NO_MEMORY(s3call->wbconn->protocol_private_data);
+
+       pwent = talloc_get_type(s3call->wbconn->protocol_private_data,
+                       struct wbsrv_pwent);
+       NT_STATUS_HAVE_NO_MEMORY(pwent);
+
+       ctx = wb_cmd_getpwent_send(s3call, service, pwent,
+                       s3call->request.data.num_entries);
+       NT_STATUS_HAVE_NO_MEMORY(ctx);
+
+       ctx->async.fn = getpwent_recv;
+       ctx->async.private_data = s3call;
+       s3call->flags |= WBSRV_CALL_FLAGS_REPLY_ASYNC;
        return NT_STATUS_OK;
 }
 
+static void getpwent_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_pw *pw;
+       uint32_t num_users;
+
+       DEBUG(5, ("getpwent_recv called\n"));
+
+       status = wb_cmd_getpwent_recv(ctx, s3call, &pw, &num_users);
+       if (NT_STATUS_IS_OK(status)) {
+               uint32_t extra_len = sizeof(struct winbindd_pw) * num_users;
+
+               s3call->response.data.num_entries = num_users;
+               s3call->response.extra_data.data = pw;
+               s3call->response.length += extra_len;
+       }
+
+       wbsrv_samba3_async_epilogue(status, s3call);
+}
+
 NTSTATUS wbsrv_samba3_endpwent(struct wbsrv_samba3_call *s3call)
 {
        struct wbsrv_pwent *pwent =

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