XRootD
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XrdNetPMark.cc
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1/******************************************************************************/
2/* */
3/* X r d N e t P M a r k . c c */
4/* */
5/* (c) 2022 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 <stdlib.h>
32#include <string.h>
33
34#include "XrdNet/XrdNetPMark.hh"
35
36/******************************************************************************/
37/* g e t E A */
38/******************************************************************************/
39
40bool XrdNetPMark::getEA(const char *cgi, int &ecode, int &acode)
41{
42
43 ecode = acode = 0;
44// If we have cgi, see if we can extract rge codes from there
45//
46 if (cgi) {
47 const char *stP = strstr(cgi, "scitag.flow=");
48 if (stP) {
49 char *eol;
50 int eacode = strtol(stP + 12, &eol, 10);
51 if (*eol == '&' || *eol == 0) {
52 if (eacode >= XrdNetPMark::minTotID && eacode <= XrdNetPMark::maxTotID) {
53 ecode = eacode >> XrdNetPMark::btsActID;
54 acode = eacode & XrdNetPMark::mskActID;
55 }
56 // According to the specification, if the provided scitag.flow has an incorrect value
57 // the packets will be marked with a scitag = 0
58 return true;
59 }
60 }
61 }
62
63 // No go
64 //
65 return false;
66}
static const int minTotID
static bool getEA(const char *cgi, int &ecode, int &acode)
static const int btsActID
static const int maxTotID
static const int mskActID