source/rpc_server/srv_unixinfo_nt.c

   1 /*
   2  *  Unix SMB/CIFS implementation.
   3  *  RPC Pipe client / server routines for unixinfo-pipe
   4  *  Copyright (C) Volker Lendecke 2005
   5  *
   6  *  This program is free software; you can redistribute it and/or modify
   7  *  it under the terms of the GNU General Public License as published by
   8  *  the Free Software Foundation; either version 2 of the License, or
   9  *  (at your option) any later version.
  10  *
  11  *  This program is distributed in the hope that it will be useful,
  12  *  but WITHOUT ANY WARRANTY; without even the implied warranty of
  13  *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  14  *  GNU General Public License for more details.
  15  *
  16  *  You should have received a copy of the GNU General Public License
  17  *  along with this program; if not, write to the Free Software
  18  *  Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
  19  */
  20
  21 /* This is the interface to the rpcunixinfo pipe. */
  22
  23 #include "includes.h"
  24 #include "nterr.h"
  25
  26
  27
  28 #undef DBGC_CLASS
  29 #define DBGC_CLASS DBGC_RPC_SRV
  30
  31 /* Map a sid to a uid */
  32
  33 NTSTATUS _unixinfo_SidToUid(pipes_struct *p, struct unixinfo_SidToUid *r)
  34 {
  35         uid_t real_uid;
  36         NTSTATUS status;
  37         *r->out.uid = 0;
  38
  39         status = sid_to_uid(&r->in.sid, &real_uid) ? NT_STATUS_OK : NT_STATUS_NONE_MAPPED;
  40         if (NT_STATUS_IS_OK(status))
  41                 *r->out.uid = real_uid;
  42
  43         return status;
  44 }
  45
  46 /* Map a uid to a sid */
  47
  48 NTSTATUS _unixinfo_UidToSid(pipes_struct *p, struct unixinfo_UidToSid *r)
  49 {
  50         NTSTATUS status = NT_STATUS_NO_SUCH_USER;
  51
  52         uid_to_sid(r->out.sid, (uid_t)r->in.uid);
  53         status = NT_STATUS_OK;
  54
  55         return status;
  56 }
  57
  58 /* Map a sid to a gid */
  59
  60 NTSTATUS _unixinfo_SidToGid(pipes_struct *p, struct unixinfo_SidToGid *r)
  61 {
  62         gid_t real_gid;
  63         NTSTATUS status;
  64
  65         *r->out.gid = 0;
  66
  67         status = sid_to_gid(&r->in.sid, &real_gid) ? NT_STATUS_OK : NT_STATUS_NONE_MAPPED;
  68         if (NT_STATUS_IS_OK(status))
  69                 *r->out.gid = real_gid;
  70
  71         return status;
  72 }
  73
  74 /* Map a gid to a sid */
  75
  76 NTSTATUS _unixinfo_GidToSid(pipes_struct *p, struct unixinfo_GidToSid *r)
  77 {
  78         NTSTATUS status = NT_STATUS_NO_SUCH_GROUP;
  79
  80         gid_to_sid(r->out.sid, (gid_t)r->in.gid);
  81         status = NT_STATUS_OK;
  82
  83         return status;
  84 }
  85
  86 /* Get unix struct passwd information */
  87
  88 NTSTATUS _unixinfo_GetPWUid(pipes_struct *p, struct unixinfo_GetPWUid *r)
  89 {
  90         int i;
  91         NTSTATUS status;
  92
  93         if (*r->in.count > 1023)
  94                 return NT_STATUS_INVALID_PARAMETER;
  95
  96         status = NT_STATUS_OK;
  97
  98         for (i=0; i<*r->in.count; i++) {
  99                 struct passwd *pw;
 100                 char *homedir, *shell;
 101                 ssize_t len1, len2;
 102
 103                 r->out.infos[i].status = NT_STATUS_NO_SUCH_USER;
 104                 r->out.infos[i].homedir = "";
 105                 r->out.infos[i].shell = "";
 106
 107                 pw = getpwuid(r->in.uids[i]);
 108
 109                 if (pw == NULL) {
 110                         DEBUG(10, ("Did not find uid %lld\n",
 111                                    (long long int)r->in.uids[i]));
 112                         continue;
 113                 }
 114
 115                 len1 = push_utf8_talloc(p->mem_ctx, &homedir, pw->pw_dir);
 116                 len2 = push_utf8_talloc(p->mem_ctx, &shell, pw->pw_shell);
 117
 118                 if ((len1 < 0) || (len2 < 0) || (homedir == NULL) ||
 119                     (shell == NULL)) {
 120                         DEBUG(3, ("push_utf8_talloc failed\n"));
 121                         r->out.infos[i].status = NT_STATUS_NO_MEMORY;
 122                         continue;
 123                 }
 124
 125                 r->out.infos[i].status = NT_STATUS_OK;
 126                 r->out.infos[i].homedir = homedir;
 127                 r->out.infos[i].shell = shell;
 128         }
 129
 130         return status;
 131 }