XRootD
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XrdSecClient.cc
Go to the documentation of this file.
1/******************************************************************************/
2/* */
3/* X r d S e c C l i e n t . c c */
4/* */
5/* (c) 2003 by the Board of Trustees of the Leland Stanford, Jr., University */
6/* All Rights Reserved */
7/* Produced by Andrew Hanushevsky for Stanford University under contract */
8/* DE-AC02-76-SFO0515 with the Department of Energy */
9/* */
10/* This file is part of the XRootD software suite. */
11/* */
12/* XRootD is free software: you can redistribute it and/or modify it under */
13/* the terms of the GNU Lesser General Public License as published by the */
14/* Free Software Foundation, either version 3 of the License, or (at your */
15/* option) any later version. */
16/* */
17/* XRootD is distributed in the hope that it will be useful, but WITHOUT */
18/* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or */
19/* FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public */
20/* License for more details. */
21/* */
22/* You should have received a copy of the GNU Lesser General Public License */
23/* along with XRootD in a file called COPYING.LESSER (LGPL license) and file */
24/* COPYING (GPL license). If not, see <http://www.gnu.org/licenses/>. */
25/* */
26/* The copyright holder's institutional names and contributor's names may not */
27/* be used to endorse or promote products derived from this software without */
28/* specific prior written permission of the institution or contributor. */
29/******************************************************************************/
30
31#include <unistd.h>
32#include <cctype>
33#include <cerrno>
34#include <netdb.h>
35#include <cstdlib>
36#include <cstring>
37#include <cstdio>
38#include <iomanip>
39#include <sys/param.h>
40#include <sys/types.h>
41
48
49/******************************************************************************/
50/* M i s c e l l a n e o u s D e f i n e s */
51/******************************************************************************/
52
53#define DEBUG(x) {if (DebugON) std::cerr <<"sec_Client: " <<x <<std::endl;}
54
55/******************************************************************************/
56/* L o c a l C l a s s e s */
57/******************************************************************************/
58
60{
61public:
63 XrdSecParameters **parms,
64 XrdOucErrInfo *einfo=0)
65 {return 0;}
66
68 XrdOucErrInfo *einfo=0)
69 {return new XrdSecCredentials();}
70
71void Delete() {} // Never deleted because it's static!
72
75};
76
77/******************************************************************************/
78/* X r d S e c G e t P r o t o c o l */
79/******************************************************************************/
80
81// This function is only invoked by the client. It exists in the top level
82// shared library that interposes between all other protocol shared libraries.
83//
84extern "C"
85{
86XrdSecProtocol *XrdSecGetProtocol(const char *hostname,
87 XrdNetAddrInfo &endPoint,
88 XrdSecParameters &parms,
89 XrdOucErrInfo *einfo)
90{
91 static int DebugON = ((getenv("XrdSecDEBUG") &&
92 strcmp(getenv("XrdSecDEBUG"), "0")) ? 1 : 0);
93 static XrdSecProtNone ProtNone;
94 static XrdSecPManager PManager(DebugON, getenv("XrdSecPROXY") != 0,
95 getenv("XrdSecPROXYCREDS") != 0);
96 const char *noperr = "XrdSec: No authentication protocols are available.";
97
98 XrdSecProtocol *protp;
99
100// Perform any required debugging
101//
102 DEBUG("protocol request for host " <<hostname <<" token='"
103 <<(parms.size > 0 ? std::setw(parms.size) : std::setw(1))
104 <<(parms.size > 0 ? parms.buffer : "") <<"'");
105
106// Check if the server wants no security.
107//
108 if (!parms.size || !parms.buffer[0]) return (XrdSecProtocol *)&ProtNone;
109
110// Find a supported protocol.
111//
112 if (!(protp = PManager.Get(hostname, endPoint, parms, einfo)))
113 {if (einfo) einfo->setErrInfo(ENOPROTOOPT, noperr);
114 else std::cerr <<noperr <<std::endl;
115 }
116
117// All done
118//
119 return protp;
120}
121}
int DebugON
#define DEBUG(x)
XrdSecProtocol * XrdSecGetProtocol(const char *hostname, XrdNetAddrInfo &endPoint, XrdSecParameters &parms, XrdOucErrInfo *einfo)
XrdSecBuffer XrdSecCredentials
int setErrInfo(int code, const char *emsg)
XrdSecProtocol * Get(const char *hname, XrdNetAddrInfo &endPoint, const char *pname, XrdOucErrInfo *erp)
int Authenticate(XrdSecCredentials *cred, XrdSecParameters **parms, XrdOucErrInfo *einfo=0)
void Delete()
Delete the protocol object. DO NOT use C++ delete() on this object.
XrdSecCredentials * getCredentials(XrdSecParameters *parm=0, XrdOucErrInfo *einfo=0)
Generic structure to pass security information back and forth.
char * buffer
Pointer to the buffer.
int size
Size of the buffer or length of data in the buffer.