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 "rpc_server/common/common.h"
  25 #include "librpc/gen_ndr/ndr_unixinfo.h"
  26 #include "lib/events/events.h"
  27 #include "dsdb/samdb/samdb.h"
  28 #include "system/passwd.h"
  29
  30 static NTSTATUS dcesrv_unixinfo_SidToUid(struct dcesrv_call_state *dce_call,
  31                                   TALLOC_CTX *mem_ctx,
  32                                   struct unixinfo_SidToUid *r)
  33 {
  34         NTSTATUS status;
  35         struct sidmap_context *sidmap;
  36         uid_t uid;
  37
  38         sidmap = sidmap_open(mem_ctx);
  39         if (sidmap == NULL) {
  40                 DEBUG(10, ("sidmap_open failed\n"));
  41                 return NT_STATUS_NO_MEMORY;
  42         }
  43
  44         status = sidmap_sid_to_unixuid(sidmap, &r->in.sid, &uid);
  45         NT_STATUS_NOT_OK_RETURN(status);
  46
  47         *r->out.uid = uid;
  48         return NT_STATUS_OK;
  49 }
  50
  51 static NTSTATUS dcesrv_unixinfo_UidToSid(struct dcesrv_call_state *dce_call,
  52                                   TALLOC_CTX *mem_ctx,
  53                                   struct unixinfo_UidToSid *r)
  54 {
  55         struct sidmap_context *sidmap;
  56         uid_t uid;
  57
  58         sidmap = sidmap_open(mem_ctx);
  59         if (sidmap == NULL) {
  60                 DEBUG(10, ("sidmap_open failed\n"));
  61                 return NT_STATUS_NO_MEMORY;
  62         }
  63
  64         uid = r->in.uid;        /* This cuts uid to (probably) 32 bit */
  65
  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         return sidmap_uid_to_sid(sidmap, mem_ctx, uid, &r->out.sid);
  72 }
  73
  74 static NTSTATUS dcesrv_unixinfo_SidToGid(struct dcesrv_call_state *dce_call,
  75                                   TALLOC_CTX *mem_ctx,
  76                                   struct unixinfo_SidToGid *r)
  77 {
  78         NTSTATUS status;
  79         struct sidmap_context *sidmap;
  80         gid_t gid;
  81
  82         sidmap = sidmap_open(mem_ctx);
  83         if (sidmap == NULL) {
  84                 DEBUG(10, ("sidmap_open failed\n"));
  85                 return NT_STATUS_NO_MEMORY;
  86         }
  87
  88         status = sidmap_sid_to_unixgid(sidmap, &r->in.sid, &gid);
  89         NT_STATUS_NOT_OK_RETURN(status);
  90
  91         *r->out.gid = gid;
  92         return NT_STATUS_OK;
  93 }
  94
  95 static NTSTATUS dcesrv_unixinfo_GidToSid(struct dcesrv_call_state *dce_call,
  96                                   TALLOC_CTX *mem_ctx,
  97                                   struct unixinfo_GidToSid *r)
  98 {
  99         struct sidmap_context *sidmap;
 100         gid_t gid;
 101
 102         sidmap = sidmap_open(mem_ctx);
 103         if (sidmap == NULL) {
 104                 DEBUG(10, ("sidmap_open failed\n"));
 105                 return NT_STATUS_NO_MEMORY;
 106         }
 107
 108         gid = r->in.gid;        /* This cuts gid to (probably) 32 bit */
 109
 110         if ((uint64_t)gid != r->in.gid) {
 111                 DEBUG(10, ("gid out of range\n"));
 112                 return NT_STATUS_INVALID_PARAMETER;
 113         }
 114
 115         return sidmap_gid_to_sid(sidmap, mem_ctx, gid, &r->out.sid);
 116 }
 117
 118 static NTSTATUS dcesrv_unixinfo_GetPWUid(struct dcesrv_call_state *dce_call,
 119                                   TALLOC_CTX *mem_ctx,
 120                                   struct unixinfo_GetPWUid *r)
 121 {
 122         int i;
 123
 124         *r->out.count = 0;
 125
 126         r->out.infos = talloc_zero_array(mem_ctx, struct unixinfo_GetPWUidInfo,
 127                                          *r->in.count);
 128         NT_STATUS_HAVE_NO_MEMORY(r->out.infos);
 129         *r->out.count = *r->in.count;
 130
 131         for (i=0; i < *r->in.count; i++) {
 132                 uid_t uid;
 133                 struct passwd *pwd;
 134
 135                 uid = r->in.uids[i];
 136                 pwd = getpwuid(uid);
 137                 if (pwd == NULL) {
 138                         DEBUG(10, ("uid %d not found\n", uid));
 139                         r->out.infos[i].homedir = "";
 140                         r->out.infos[i].shell = "";
 141                         r->out.infos[i].status = NT_STATUS_NO_SUCH_USER;
 142                         continue;
 143                 }
 144
 145                 r->out.infos[i].homedir = talloc_strdup(mem_ctx, pwd->pw_dir);
 146                 r->out.infos[i].shell = talloc_strdup(mem_ctx, pwd->pw_shell);
 147
 148                 if ((r->out.infos[i].homedir == NULL) ||
 149                     (r->out.infos[i].shell == NULL)) {
 150                         r->out.infos[i].homedir = "";
 151                         r->out.infos[i].shell = "";
 152                         r->out.infos[i].status = NT_STATUS_NO_MEMORY;
 153                         continue;
 154                 }
 155
 156                 r->out.infos[i].status = NT_STATUS_OK;
 157         }
 158
 159         return NT_STATUS_OK;
 160 }
 161
 162 /* include the generated boilerplate */
 163 #include "librpc/gen_ndr/ndr_unixinfo_s.c"