source4/winbind/wb_cmd_getgrnam.c

   1 /*
   2    Unix SMB/CIFS implementation.
   3
   4    Command backend for wbinfo --group-info
   5
   6    Copyright (C) Kai Blin 2008
   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 "winbind/wb_helper.h"
  26 #include "smbd/service_task.h"
  27 #include "param/param.h"
  28
  29 struct cmd_getgrnam_state {
  30         struct composite_context *ctx;
  31         struct wbsrv_service *service;
  32         char *name;
  33         char *workgroup_name;
  34         struct dom_sid *group_sid;
  35
  36         struct winbindd_gr *result;
  37 };
  38
  39 static void cmd_getgrnam_recv_domain(struct composite_context *ctx);
  40 static void cmd_getgrnam_recv_group_info(struct composite_context *ctx);
  41 static void cmd_getgrnam_recv_gid(struct composite_context *ctx);
  42
  43 struct composite_context *wb_cmd_getgrnam_send(TALLOC_CTX *mem_ctx,
  44                                                  struct wbsrv_service *service,
  45                                                  const char *name)
  46 {
  47         struct composite_context *result, *ctx;
  48         struct cmd_getgrnam_state *state;
  49
  50         DEBUG(5, ("wb_cmd_getgrnam_send called\n"));
  51
  52         result = composite_create(mem_ctx, service->task->event_ctx);
  53         if (!result) return NULL;
  54
  55         state = talloc(result, struct cmd_getgrnam_state);
  56         if (composite_nomem(state, result)) return result;
  57         state->ctx = result;
  58         result->private_data = state;
  59         state->service = service;
  60         state->name = talloc_strdup(state, name);
  61         if(composite_nomem(state->name, result)) return result;
  62
  63         ctx = wb_name2domain_send(state, service, name);
  64         if (composite_nomem(ctx, result)) return result;
  65
  66         composite_continue(result, ctx, cmd_getgrnam_recv_domain, state);
  67         return result;
  68 }
  69
  70 static void cmd_getgrnam_recv_domain(struct composite_context *ctx)
  71 {
  72         struct cmd_getgrnam_state *state = talloc_get_type(
  73                         ctx->async.private_data, struct cmd_getgrnam_state);
  74         struct wbsrv_domain *domain;
  75         struct libnet_GroupInfo *group_info;
  76         char *group_dom, *group_name;
  77         bool ok;
  78
  79         state->ctx->status = wb_name2domain_recv(ctx, &domain);
  80         if(!composite_is_ok(state->ctx)) return;
  81
  82         group_info = talloc(state, struct libnet_GroupInfo);
  83         if (composite_nomem(group_info, state->ctx)) return;
  84
  85         ok = wb_samba3_split_username(state, state->service->task->lp_ctx,
  86                                       state->name, &group_dom, &group_name);
  87         if(!ok){
  88                 composite_error(state->ctx, NT_STATUS_OBJECT_NAME_INVALID);
  89                 return;
  90         }
  91
  92         group_info->in.level = GROUP_INFO_BY_NAME;
  93         group_info->in.data.group_name = group_name;
  94         group_info->in.domain_name = group_dom;
  95         state->workgroup_name = talloc_strdup(state, group_dom);
  96         if(composite_nomem(state->workgroup_name, state->ctx)) return;
  97
  98         ctx = libnet_GroupInfo_send(domain->libnet_ctx, state, group_info,NULL);
  99
 100         composite_continue(state->ctx, ctx, cmd_getgrnam_recv_group_info,state);
 101 }
 102
 103 static void cmd_getgrnam_recv_group_info(struct composite_context *ctx)
 104 {
 105         struct cmd_getgrnam_state *state = talloc_get_type(
 106                         ctx->async.private_data, struct cmd_getgrnam_state);
 107         struct libnet_GroupInfo *group_info;
 108         struct winbindd_gr *gr;
 109         char *group_name_with_domain;
 110
 111         DEBUG(5, ("cmd_getgrnam_recv_group_info called\n"));
 112
 113         group_info = talloc(state, struct libnet_GroupInfo);
 114         if(composite_nomem(group_info, state->ctx)) return;
 115
 116         gr = talloc(state, struct winbindd_gr);
 117         if(composite_nomem(gr, state->ctx)) return;
 118
 119         state->ctx->status = libnet_GroupInfo_recv(ctx, state, group_info);
 120         if(!composite_is_ok(state->ctx)) return;
 121
 122         group_name_with_domain = talloc_asprintf(gr, "%s%s%s",
 123                 state->workgroup_name,
 124                 lpcfg_winbind_separator(state->service->task->lp_ctx),
 125                 group_info->out.group_name);
 126         if (composite_nomem(group_name_with_domain, state->ctx)) {
 127                 return;
 128         }
 129
 130         WBSRV_SAMBA3_SET_STRING(gr->gr_name, group_name_with_domain);
 131         WBSRV_SAMBA3_SET_STRING(gr->gr_passwd, "*");
 132         gr->num_gr_mem = group_info->out.num_members;
 133         gr->gr_mem_ofs = 0;
 134
 135         state->result = gr;
 136
 137         ctx = wb_sid2gid_send(state, state->service, group_info->out.group_sid);
 138         composite_continue(state->ctx, ctx, cmd_getgrnam_recv_gid, state);
 139 }
 140
 141 static void cmd_getgrnam_recv_gid(struct composite_context *ctx)
 142 {
 143         struct cmd_getgrnam_state *state = talloc_get_type(
 144                         ctx->async.private_data, struct cmd_getgrnam_state);
 145         gid_t gid;
 146
 147         DEBUG(5, ("cmd_getgrnam_recv_gid called\n"));
 148
 149         state->ctx->status = wb_sid2gid_recv(ctx, &gid);
 150         if(!composite_is_ok(state->ctx)) return;
 151
 152         state->result->gr_gid = gid;
 153
 154         composite_done(state->ctx);
 155 }
 156
 157 NTSTATUS wb_cmd_getgrnam_recv(struct composite_context *ctx,
 158                 TALLOC_CTX *mem_ctx, struct winbindd_gr **gr)
 159 {
 160         NTSTATUS status = composite_wait(ctx);
 161
 162         DEBUG(5, ("wb_cmd_getgrnam_recv called\n"));
 163
 164         if (NT_STATUS_IS_OK(status)) {
 165                 struct cmd_getgrnam_state *state =
 166                         talloc_get_type(ctx->private_data,
 167                                         struct cmd_getgrnam_state);
 168                 *gr = talloc_steal(mem_ctx, state->result);
 169         }
 170         talloc_free(ctx);
 171         return status;
 172
 173 }
 174