source4/rpc_server/unixinfo/dcesrv_unixinfo.c

   1 /*
   2    Unix SMB/CIFS implementation.
   3
   4    endpoint server for the unixinfo pipe
   5
   6    Copyright (C) Volker Lendecke 2005
   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 "rpc_server/dcerpc_server.h"
  24 #include "librpc/gen_ndr/ndr_unixinfo.h"
  25 #include "libcli/wbclient/wbclient.h"
  26 #include "system/passwd.h"
  27
  28 static NTSTATUS dcesrv_unixinfo_SidToUid(struct dcesrv_call_state *dce_call,
  29                                   TALLOC_CTX *mem_ctx,
  30                                   struct unixinfo_SidToUid *r)
  31 {
  32         NTSTATUS status;
  33         struct id_map *ids;
  34
  35         DEBUG(5, ("dcesrv_unixinfo_SidToUid called\n"));
  36
  37         ids = talloc(mem_ctx, struct id_map);
  38         NT_STATUS_HAVE_NO_MEMORY(ids);
  39
  40         ids->sid = &r->in.sid;
  41         ids->status = ID_UNKNOWN;
  42         ZERO_STRUCT(ids->xid);
  43         status = wbc_sids_to_xids(dce_call->event_ctx, ids, 1);
  44         NT_STATUS_NOT_OK_RETURN(status);
  45
  46         if (ids->xid.type == ID_TYPE_BOTH ||
  47             ids->xid.type == ID_TYPE_UID) {
  48                 *r->out.uid = ids->xid.id;
  49                 return NT_STATUS_OK;
  50         } else {
  51                 return NT_STATUS_INVALID_SID;
  52         }
  53 }
  54
  55 static NTSTATUS dcesrv_unixinfo_UidToSid(struct dcesrv_call_state *dce_call,
  56                                   TALLOC_CTX *mem_ctx,
  57                                   struct unixinfo_UidToSid *r)
  58 {
  59         struct id_map *ids;
  60         uint32_t uid;
  61         NTSTATUS status;
  62
  63         DEBUG(5, ("dcesrv_unixinfo_UidToSid called\n"));
  64
  65         uid = r->in.uid;        /* This cuts uid to 32 bit */
  66         if ((uint64_t)uid != r->in.uid) {
  67                 DEBUG(10, ("uid out of range\n"));
  68                 return NT_STATUS_INVALID_PARAMETER;
  69         }
  70
  71         ids = talloc(mem_ctx, struct id_map);
  72         NT_STATUS_HAVE_NO_MEMORY(ids);
  73
  74         ids->sid = NULL;
  75         ids->status = ID_UNKNOWN;
  76
  77         ids->xid.id = uid;
  78         ids->xid.type = ID_TYPE_UID;
  79
  80         status = wbc_xids_to_sids(dce_call->event_ctx, ids, 1);
  81         NT_STATUS_NOT_OK_RETURN(status);
  82
  83         r->out.sid = ids->sid;
  84         return NT_STATUS_OK;
  85 }
  86
  87 static NTSTATUS dcesrv_unixinfo_SidToGid(struct dcesrv_call_state *dce_call,
  88                                   TALLOC_CTX *mem_ctx,
  89                                   struct unixinfo_SidToGid *r)
  90 {
  91         NTSTATUS status;
  92         struct id_map *ids;
  93
  94         DEBUG(5, ("dcesrv_unixinfo_SidToGid called\n"));
  95
  96         ids = talloc(mem_ctx, struct id_map);
  97         NT_STATUS_HAVE_NO_MEMORY(ids);
  98
  99         ids->sid = &r->in.sid;
 100         ids->status = ID_UNKNOWN;
 101         ZERO_STRUCT(ids->xid);
 102         status = wbc_sids_to_xids(dce_call->event_ctx, ids, 1);
 103         NT_STATUS_NOT_OK_RETURN(status);
 104
 105         if (ids->xid.type == ID_TYPE_BOTH ||
 106             ids->xid.type == ID_TYPE_GID) {
 107                 *r->out.gid = ids->xid.id;
 108                 return NT_STATUS_OK;
 109         } else {
 110                 return NT_STATUS_INVALID_SID;
 111         }
 112 }
 113
 114 static NTSTATUS dcesrv_unixinfo_GidToSid(struct dcesrv_call_state *dce_call,
 115                                   TALLOC_CTX *mem_ctx,
 116                                   struct unixinfo_GidToSid *r)
 117 {
 118         struct id_map *ids;
 119         uint32_t gid;
 120         NTSTATUS status;
 121
 122         DEBUG(5, ("dcesrv_unixinfo_GidToSid called\n"));
 123
 124         gid = r->in.gid;        /* This cuts gid to 32 bit */
 125         if ((uint64_t)gid != r->in.gid) {
 126                 DEBUG(10, ("gid out of range\n"));
 127                 return NT_STATUS_INVALID_PARAMETER;
 128         }
 129
 130         ids = talloc(mem_ctx, struct id_map);
 131         NT_STATUS_HAVE_NO_MEMORY(ids);
 132
 133         ids->sid = NULL;
 134         ids->status = ID_UNKNOWN;
 135
 136         ids->xid.id = gid;
 137         ids->xid.type = ID_TYPE_GID;
 138
 139         status = wbc_xids_to_sids(dce_call->event_ctx, ids, 1);
 140         NT_STATUS_NOT_OK_RETURN(status);
 141
 142         r->out.sid = ids->sid;
 143         return NT_STATUS_OK;
 144 }
 145
 146 static NTSTATUS dcesrv_unixinfo_GetPWUid(struct dcesrv_call_state *dce_call,
 147                                   TALLOC_CTX *mem_ctx,
 148                                   struct unixinfo_GetPWUid *r)
 149 {
 150         unsigned int i;
 151
 152         *r->out.count = 0;
 153
 154         r->out.infos = talloc_zero_array(mem_ctx, struct unixinfo_GetPWUidInfo,
 155                                          *r->in.count);
 156         NT_STATUS_HAVE_NO_MEMORY(r->out.infos);
 157         *r->out.count = *r->in.count;
 158
 159         for (i=0; i < *r->in.count; i++) {
 160                 uid_t uid;
 161                 struct passwd *pwd;
 162
 163                 uid = r->in.uids[i];
 164                 pwd = getpwuid(uid);
 165                 if (pwd == NULL) {
 166                         DEBUG(10, ("uid %d not found\n", uid));
 167                         r->out.infos[i].homedir = "";
 168                         r->out.infos[i].shell = "";
 169                         r->out.infos[i].status = NT_STATUS_NO_SUCH_USER;
 170                         continue;
 171                 }
 172
 173                 r->out.infos[i].homedir = talloc_strdup(mem_ctx, pwd->pw_dir);
 174                 r->out.infos[i].shell = talloc_strdup(mem_ctx, pwd->pw_shell);
 175
 176                 if ((r->out.infos[i].homedir == NULL) ||
 177                     (r->out.infos[i].shell == NULL)) {
 178                         r->out.infos[i].homedir = "";
 179                         r->out.infos[i].shell = "";
 180                         r->out.infos[i].status = NT_STATUS_NO_MEMORY;
 181                         continue;
 182                 }
 183
 184                 r->out.infos[i].status = NT_STATUS_OK;
 185         }
 186
 187         return NT_STATUS_OK;
 188 }
 189
 190 /* include the generated boilerplate */
 191 #include "librpc/gen_ndr/ndr_unixinfo_s.c"