source4/winbind/wb_cmd_getpwnam.c

   1 /*
   2    Unix SMB/CIFS implementation.
   3
   4    Command backend for wbinfo -i
   5
   6    Copyright (C) Kai Blin 2007
   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 "param/param.h"
  26 #include "winbind/wb_helper.h"
  27 #include "smbd/service_task.h"
  28 #include "libcli/security/security.h"
  29
  30 struct cmd_getpwnam_state {
  31         struct composite_context *ctx;
  32         struct wbsrv_service *service;
  33         char *name;
  34         char *workgroup_name;
  35         struct dom_sid *group_sid;
  36
  37         struct winbindd_pw *result;
  38 };
  39
  40 static void cmd_getpwnam_recv_domain(struct composite_context *ctx);
  41 static void cmd_getpwnam_recv_user_info(struct composite_context *ctx);
  42 static void cmd_getpwnam_recv_uid(struct composite_context *ctx);
  43 static void cmd_getpwnam_recv_gid(struct composite_context *ctx);
  44
  45 struct composite_context *wb_cmd_getpwnam_send(TALLOC_CTX *mem_ctx,
  46                                                  struct wbsrv_service *service,
  47                                                  const char *name)
  48 {
  49         struct composite_context *result, *ctx;
  50         struct cmd_getpwnam_state *state;
  51
  52         DEBUG(5, ("wb_cmd_getpwnam_send called\n"));
  53
  54         result = composite_create(mem_ctx, service->task->event_ctx);
  55         if (!result) return NULL;
  56
  57         state = talloc(result, struct cmd_getpwnam_state);
  58         if (composite_nomem(state, result)) return result;
  59         state->ctx = result;
  60         result->private_data = state;
  61         state->service = service;
  62         state->name = talloc_strdup(state, name);
  63         if(composite_nomem(state->name, result)) return result;
  64
  65         ctx = wb_name2domain_send(state, service, name);
  66         if (composite_nomem(ctx, result)) return result;
  67
  68         composite_continue(result, ctx, cmd_getpwnam_recv_domain, state);
  69         return result;
  70 }
  71
  72 static void cmd_getpwnam_recv_domain(struct composite_context *ctx)
  73 {
  74         struct cmd_getpwnam_state *state = talloc_get_type(
  75                         ctx->async.private_data, struct cmd_getpwnam_state);
  76         struct wbsrv_domain *domain;
  77         struct libnet_UserInfo *user_info;
  78         char *user_dom, *user_name;
  79         bool ok;
  80
  81         state->ctx->status = wb_name2domain_recv(ctx, &domain);
  82         if(!composite_is_ok(state->ctx)) return;
  83
  84         user_info = talloc(state, struct libnet_UserInfo);
  85         if (composite_nomem(user_info, state->ctx)) return;
  86
  87         ok = wb_samba3_split_username(state, state->service->task->lp_ctx,
  88                                       state->name, &user_dom, &user_name);
  89         if(!ok){
  90                 composite_error(state->ctx, NT_STATUS_OBJECT_NAME_INVALID);
  91                 return;
  92         }
  93
  94         user_info->in.level = USER_INFO_BY_NAME;
  95         user_info->in.data.user_name = user_name;
  96         user_info->in.domain_name = domain->libnet_ctx->samr.name;
  97         state->workgroup_name = talloc_strdup(state,
  98                         domain->libnet_ctx->samr.name);
  99         if(composite_nomem(state->workgroup_name, state->ctx)) return;
 100
 101         ctx = libnet_UserInfo_send(domain->libnet_ctx, state, user_info, NULL);
 102
 103         composite_continue(state->ctx, ctx, cmd_getpwnam_recv_user_info, state);
 104 }
 105
 106 static void cmd_getpwnam_recv_user_info(struct composite_context *ctx)
 107 {
 108         struct cmd_getpwnam_state *state = talloc_get_type(
 109                         ctx->async.private_data, struct cmd_getpwnam_state);
 110         struct libnet_UserInfo *user_info;
 111         struct winbindd_pw *pw;
 112         char *username_with_domain;
 113         char *lowercase_username;
 114
 115         DEBUG(5, ("cmd_getpwnam_recv_user_info called\n"));
 116
 117         user_info = talloc(state, struct libnet_UserInfo);
 118         if(composite_nomem(user_info, state->ctx)) return;
 119
 120         pw = talloc(state, struct winbindd_pw);
 121         if(composite_nomem(pw, state->ctx)) return;
 122
 123         state->ctx->status = libnet_UserInfo_recv(ctx, state, user_info);
 124         if(!composite_is_ok(state->ctx)) return;
 125
 126         lowercase_username = strlower_talloc(state, user_info->out.account_name);
 127         if (composite_nomem(lowercase_username, state->ctx)) {
 128                 return;
 129         }
 130
 131         username_with_domain = talloc_asprintf(pw, "%s%s%s",
 132                 state->workgroup_name,
 133                 lpcfg_winbind_separator(state->service->task->lp_ctx),
 134                 lowercase_username);
 135         if(composite_nomem(username_with_domain, state->ctx)) return;
 136
 137         WBSRV_SAMBA3_SET_STRING(pw->pw_name, username_with_domain);
 138         WBSRV_SAMBA3_SET_STRING(pw->pw_passwd, "*");
 139         WBSRV_SAMBA3_SET_STRING(pw->pw_gecos, user_info->out.full_name);
 140         WBSRV_SAMBA3_SET_STRING(pw->pw_dir,
 141                 lpcfg_template_homedir(state->service->task->lp_ctx));
 142         all_string_sub(pw->pw_dir, "%D", state->workgroup_name,
 143                         sizeof(fstring) - 1);
 144         all_string_sub(pw->pw_dir, "%U", lowercase_username,
 145                         sizeof(fstring) - 1);
 146         WBSRV_SAMBA3_SET_STRING(pw->pw_shell,
 147                 lpcfg_template_shell(state->service->task->lp_ctx));
 148
 149         state->group_sid = dom_sid_dup(state, user_info->out.primary_group_sid);
 150         if(composite_nomem(state->group_sid, state->ctx)) return;
 151
 152         state->result = pw;
 153
 154         ctx = wb_sid2uid_send(state, state->service, user_info->out.user_sid);
 155         composite_continue(state->ctx, ctx, cmd_getpwnam_recv_uid, state);
 156 }
 157
 158 static void cmd_getpwnam_recv_uid(struct composite_context *ctx)
 159 {
 160         struct cmd_getpwnam_state *state = talloc_get_type(
 161                         ctx->async.private_data, struct cmd_getpwnam_state);
 162         uid_t uid;
 163
 164         DEBUG(5, ("cmd_getpwnam_recv_uid called\n"));
 165
 166         state->ctx->status = wb_sid2uid_recv(ctx, &uid);
 167         if(!composite_is_ok(state->ctx)) return;
 168
 169         state->result->pw_uid = uid;
 170
 171         ctx = wb_sid2gid_send(state, state->service, state->group_sid);
 172         composite_continue(state->ctx, ctx, cmd_getpwnam_recv_gid, state);
 173 }
 174
 175 static void cmd_getpwnam_recv_gid(struct composite_context *ctx)
 176 {
 177         struct cmd_getpwnam_state *state = talloc_get_type(
 178                         ctx->async.private_data, struct cmd_getpwnam_state);
 179         gid_t gid;
 180
 181         DEBUG(5, ("cmd_getpwnam_recv_gid called\n"));
 182
 183         state->ctx->status = wb_sid2gid_recv(ctx, &gid);
 184         if(!composite_is_ok(state->ctx)) return;
 185
 186         state->result->pw_gid = gid;
 187
 188         composite_done(state->ctx);
 189 }
 190
 191 NTSTATUS wb_cmd_getpwnam_recv(struct composite_context *ctx,
 192                 TALLOC_CTX *mem_ctx, struct winbindd_pw **pw)
 193 {
 194         NTSTATUS status = composite_wait(ctx);
 195
 196         DEBUG(5, ("wb_cmd_getpwnam_recv called\n"));
 197
 198         if (NT_STATUS_IS_OK(status)) {
 199                 struct cmd_getpwnam_state *state =
 200                         talloc_get_type(ctx->private_data,
 201                                         struct cmd_getpwnam_state);
 202                 *pw = talloc_steal(mem_ctx, state->result);
 203         }
 204         talloc_free(ctx);
 205         return status;
 206
 207 }
 208