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 2 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, write to the Free Software
  20    Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
  21 */
  22
  23 #include "includes.h"
  24 #include "rpc_server/dcerpc_server.h"
  25 #include "rpc_server/common/common.h"
  26 #include "librpc/gen_ndr/ndr_unixinfo.h"
  27 #include "lib/events/events.h"
  28 #include "ntvfs/ntvfs.h"
  29
  30 #include <sys/types.h>
  31 #include <pwd.h>
  32
  33 static NTSTATUS unixinfo_SidToUid(struct dcesrv_call_state *dce_call,
  34                                   TALLOC_CTX *mem_ctx,
  35                                   struct unixinfo_SidToUid *r)
  36 {
  37         struct sidmap_context *sidmap;
  38         uid_t uid;
  39
  40         sidmap = sidmap_open(mem_ctx);
  41         if (sidmap == NULL) {
  42                 DEBUG(10, ("sidmap_open failed\n"));
  43                 return NT_STATUS_NO_MEMORY;
  44         }
  45
  46         r->out.result = sidmap_sid_to_unixuid(sidmap, &r->in.sid, &uid);
  47
  48         if (NT_STATUS_IS_OK(r->out.result)) {
  49                 r->out.uid = uid;
  50         }
  51
  52         return r->out.result;
  53 }
  54
  55 static NTSTATUS unixinfo_UidToSid(struct dcesrv_call_state *dce_call,
  56                                   TALLOC_CTX *mem_ctx,
  57                                   struct unixinfo_UidToSid *r)
  58 {
  59         struct sidmap_context *sidmap;
  60         uid_t uid;
  61
  62         sidmap = sidmap_open(mem_ctx);
  63         if (sidmap == NULL) {
  64                 DEBUG(10, ("sidmap_open failed\n"));
  65                 return NT_STATUS_NO_MEMORY;
  66         }
  67
  68         uid = r->in.uid;        /* This cuts uid to (probably) 32 bit */
  69
  70         if ((uint64_t)uid != r->in.uid) {
  71                 DEBUG(10, ("uid out of range\n"));
  72                 return NT_STATUS_INVALID_PARAMETER;
  73         }
  74
  75         r->out.sid = NULL;
  76         r->out.result = sidmap_uid_to_sid(sidmap, mem_ctx, uid, &r->out.sid);
  77         return r->out.result;
  78 }
  79
  80 static NTSTATUS unixinfo_SidToGid(struct dcesrv_call_state *dce_call,
  81                                   TALLOC_CTX *mem_ctx,
  82                                   struct unixinfo_SidToGid *r)
  83 {
  84         struct sidmap_context *sidmap;
  85         gid_t gid;
  86
  87         sidmap = sidmap_open(mem_ctx);
  88         if (sidmap == NULL) {
  89                 DEBUG(10, ("sidmap_open failed\n"));
  90                 return NT_STATUS_NO_MEMORY;
  91         }
  92
  93         r->out.result = sidmap_sid_to_unixgid(sidmap, &r->in.sid, &gid);
  94
  95         if (NT_STATUS_IS_OK(r->out.result)) {
  96                 r->out.gid = gid;
  97         }
  98
  99         return r->out.result;
 100 }
 101
 102 static NTSTATUS unixinfo_GidToSid(struct dcesrv_call_state *dce_call,
 103                                   TALLOC_CTX *mem_ctx,
 104                                   struct unixinfo_GidToSid *r)
 105 {
 106         struct sidmap_context *sidmap;
 107         gid_t gid;
 108
 109         sidmap = sidmap_open(mem_ctx);
 110         if (sidmap == NULL) {
 111                 DEBUG(10, ("sidmap_open failed\n"));
 112                 return NT_STATUS_NO_MEMORY;
 113         }
 114
 115         gid = r->in.gid;        /* This cuts gid to (probably) 32 bit */
 116
 117         if ((uint64_t)gid != r->in.gid) {
 118                 DEBUG(10, ("gid out of range\n"));
 119                 return NT_STATUS_INVALID_PARAMETER;
 120         }
 121
 122         r->out.sid = NULL;
 123         r->out.result = sidmap_gid_to_sid(sidmap, mem_ctx, gid, &r->out.sid);
 124         return r->out.result;
 125 }
 126
 127 static NTSTATUS unixinfo_GetPWUid(struct dcesrv_call_state *dce_call,
 128                                   TALLOC_CTX *mem_ctx,
 129                                   struct unixinfo_GetPWUid *r)
 130 {
 131         int i;
 132
 133         r->out.infos = talloc_zero_array(mem_ctx, struct unixinfo_GetPWUidInfo,
 134                                          r->in.count);
 135         if (r->out.infos == NULL) {
 136                 DEBUG(0, ("talloc failed\n"));
 137                 return NT_STATUS_NO_MEMORY;
 138         }
 139
 140         r->out.result = NT_STATUS_OK;
 141         r->out.count = r->in.count;
 142
 143         for (i=0; i<r->in.count; i++) {
 144                 uid_t uid;
 145                 struct passwd *pwd;
 146
 147                 uid = r->in.uids[i];
 148                 pwd = getpwuid(uid);
 149                 if (pwd == NULL) {
 150                         DEBUG(10, ("uid %d not found\n", uid));
 151                         r->out.infos[i].homedir = "";
 152                         r->out.infos[i].shell = "";
 153                         r->out.infos[i].status = NT_STATUS_NO_SUCH_USER;
 154                         continue;
 155                 }
 156
 157                 r->out.infos[i].homedir = talloc_strdup(mem_ctx, pwd->pw_dir);
 158                 r->out.infos[i].shell = talloc_strdup(mem_ctx, pwd->pw_shell);
 159
 160                 if ((r->out.infos[i].homedir == NULL) ||
 161                     (r->out.infos[i].shell == NULL)) {
 162                         r->out.infos[i].homedir = "";
 163                         r->out.infos[i].shell = "";
 164                         r->out.infos[i].status = NT_STATUS_NO_MEMORY;
 165                         continue;
 166                 }
 167
 168                 r->out.infos[i].status = NT_STATUS_OK;
 169         }
 170
 171         return NT_STATUS_OK;
 172 }
 173
 174 /* include the generated boilerplate */
 175 #include "librpc/gen_ndr/ndr_unixinfo_s.c"