source4/winbind/wb_cmd_setgrent.c

   1 /*
   2    Unix SMB/CIFS implementation.
   3
   4    Command backend for setgrent
   5
   6    Copyright (C) Matthieu Patou 2010
   7
   8    This program is free software; you can redistribute it and/or modify
   9    it under the terms of the GNU General Public License as published by
  10    the Free Software Foundation; either version 3 of the License, or
  11    (at your option) any later version.
  12
  13    This program is distributed in the hope that it will be useful,
  14    but WITHOUT ANY WARRANTY; without even the implied warranty of
  15    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  16    GNU General Public License for more details.
  17
  18    You should have received a copy of the GNU General Public License
  19    along with this program.  If not, see <http://www.gnu.org/licenses/>.
  20 */
  21
  22 #include "includes.h"
  23 #include "libcli/composite/composite.h"
  24 #include "winbind/wb_server.h"
  25 #include "smbd/service_task.h"
  26
  27 struct cmd_setgrent_state {
  28         struct composite_context *ctx;
  29         struct wbsrv_service *service;
  30         struct libnet_context *libnet_ctx;
  31
  32         struct wbsrv_grent *result;
  33         char *domain_name;
  34 };
  35
  36 static void cmd_setgrent_recv_domain(struct composite_context *ctx);
  37 static void cmd_setgrent_recv_group_list(struct composite_context *ctx);
  38
  39 struct composite_context *wb_cmd_setgrent_send(TALLOC_CTX *mem_ctx,
  40                 struct wbsrv_service *service)
  41 {
  42         struct composite_context *ctx, *result;
  43         struct cmd_setgrent_state *state;
  44
  45         DEBUG(5, ("wb_cmd_setgrent_send called\n"));
  46
  47         result = composite_create(mem_ctx, service->task->event_ctx);
  48         if (!result) return NULL;
  49
  50         state = talloc(mem_ctx, struct cmd_setgrent_state);
  51         if (composite_nomem(state, result)) return result;
  52
  53         state->ctx = result;
  54         result->private_data = state;
  55         state->service = service;
  56
  57         state->result = talloc(state, struct wbsrv_grent);
  58         if (composite_nomem(state->result, state->ctx)) return result;
  59
  60         ctx = wb_sid2domain_send(state, service, service->primary_sid);
  61         if (composite_nomem(ctx, state->ctx)) return result;
  62
  63         composite_continue(state->ctx, ctx, cmd_setgrent_recv_domain, state);
  64         return result;
  65 }
  66
  67 static void cmd_setgrent_recv_domain(struct composite_context *ctx)
  68 {
  69         struct cmd_setgrent_state *state = talloc_get_type(
  70                         ctx->async.private_data, struct cmd_setgrent_state);
  71         struct wbsrv_domain *domain;
  72         struct libnet_GroupList *group_list;
  73
  74         DEBUG(5, ("cmd_setgrent_recv_domain called\n"));
  75
  76         state->ctx->status = wb_sid2domain_recv(ctx, &domain);
  77         if (!composite_is_ok(state->ctx)) return;
  78
  79         state->libnet_ctx = domain->libnet_ctx;
  80
  81         group_list = talloc(state->result, struct libnet_GroupList);
  82         if (composite_nomem(group_list, state->ctx)) return;
  83
  84         state->domain_name = talloc_strdup(state,
  85                         domain->libnet_ctx->samr.name);
  86         group_list->in.domain_name = talloc_strdup(state,
  87                         domain->libnet_ctx->samr.name);
  88         if (composite_nomem(group_list->in.domain_name, state->ctx)) return;
  89
  90         /* Page size recommended by Rafal */
  91         group_list->in.page_size = 128;
  92
  93         /* Always get the start of the list */
  94         group_list->in.resume_index = 0;
  95
  96         ctx = libnet_GroupList_send(domain->libnet_ctx, state->result, group_list,
  97                         NULL);
  98
  99         state->result->page_index = -1;
 100         composite_continue(state->ctx, ctx, cmd_setgrent_recv_group_list, state);
 101 }
 102
 103 static void cmd_setgrent_recv_group_list(struct composite_context *ctx)
 104 {
 105         struct cmd_setgrent_state *state = talloc_get_type(
 106                         ctx->async.private_data, struct cmd_setgrent_state);
 107         struct libnet_GroupList *group_list;
 108         struct libnet_GroupList *group_list_send;
 109         DEBUG(5, ("cmd_setgrent_recv_group_list called\n"));
 110
 111         group_list = talloc(state->result, struct libnet_GroupList);
 112         if (composite_nomem(group_list, state->ctx)) return;
 113
 114         state->ctx->status = libnet_GroupList_recv(ctx, state->result,
 115                         group_list);
 116         if (NT_STATUS_IS_OK(state->ctx->status) ||
 117                 NT_STATUS_EQUAL(state->ctx->status, STATUS_MORE_ENTRIES)) {
 118                 uint32_t resume_index = group_list->out.resume_index;
 119                 if( state->result->page_index == -1) { /* First run*/
 120                         state->result->group_list = group_list;
 121                         state->result->page_index = 0;
 122                         state->result->libnet_ctx = state->libnet_ctx;
 123                 } else {
 124                         int i;
 125                         struct grouplist *tmp;
 126                         tmp = state->result->group_list->out.groups;
 127                         state->result->group_list->out.groups = talloc_realloc(state->result,tmp,struct grouplist,
 128                         state->result->group_list->out.count+group_list->out.count);
 129                         tmp = state->result->group_list->out.groups;
 130                         for(i=0;i<group_list->out.count;i++ ) {
 131                                 tmp[i+state->result->group_list->out.count].groupname = talloc_steal(state->result,group_list->out.groups[i].groupname);
 132                         }
 133                         state->result->group_list->out.count += group_list->out.count;
 134                         TALLOC_FREE(group_list);
 135                 }
 136
 137
 138                 if (NT_STATUS_IS_OK(state->ctx->status) ) {
 139                         composite_done(state->ctx);
 140                 } else {
 141                         group_list_send = talloc(state->result, struct libnet_GroupList);
 142                         if (composite_nomem(group_list_send, state->ctx)) return;
 143                         group_list_send->in.domain_name =  talloc_strdup(state, state->domain_name);
 144                         group_list_send->in.resume_index = resume_index;
 145                         group_list_send->in.page_size = 128;
 146                         ctx = libnet_GroupList_send(state->libnet_ctx, state->result, group_list_send, NULL);
 147                         composite_continue(state->ctx, ctx, cmd_setgrent_recv_group_list, state);
 148                 }
 149         } else {
 150                 composite_error(state->ctx, state->ctx->status);
 151         }
 152         return;
 153 }
 154
 155 NTSTATUS wb_cmd_setgrent_recv(struct composite_context *ctx,
 156                 TALLOC_CTX *mem_ctx, struct wbsrv_grent **grent)
 157 {
 158         NTSTATUS status = composite_wait(ctx);
 159
 160         DEBUG(5, ("wb_cmd_setgrent_recv called\n"));
 161
 162         if (NT_STATUS_IS_OK(status)) {
 163                 struct cmd_setgrent_state *state =
 164                         talloc_get_type(ctx->private_data,
 165                                 struct cmd_setgrent_state);
 166
 167                 *grent = talloc_steal(mem_ctx, state->result);
 168         }
 169
 170         talloc_free(ctx);
 171         return status;
 172 }