src/acl/Eui64.cc

   1 /*
   2  * Copyright (C) 1996-2015 The Squid Software Foundation and contributors
   3  *
   4  * Squid software is distributed under GPLv2+ license and includes
   5  * contributions from numerous individuals and organizations.
   6  * Please see the COPYING and CONTRIBUTORS files for details.
   7  */
   8
   9 /* DEBUG: section 28    Access Control */
  10
  11 #include "squid.h"
  12
  13 #if USE_SQUID_EUI
  14
  15 #include "acl/Eui64.h"
  16 #include "acl/FilledChecklist.h"
  17 #include "cache_cf.h"
  18 #include "Debug.h"
  19 #include "eui/Eui64.h"
  20 #include "globals.h"
  21 #include "ip/Address.h"
  22
  23 ACL *
  24 ACLEui64::clone() const
  25 {
  26     return new ACLEui64(*this);
  27 }
  28
  29 ACLEui64::ACLEui64 (char const *theClass) : class_ (theClass)
  30 {}
  31
  32 ACLEui64::ACLEui64 (ACLEui64 const & old) : eui64Data(old.eui64Data), class_ (old.class_)
  33 {
  34 }
  35
  36 char const *
  37 ACLEui64::typeString() const
  38 {
  39     return class_;
  40 }
  41
  42 bool
  43 ACLEui64::empty () const
  44 {
  45     return eui64Data.empty();
  46 }
  47
  48 Eui::Eui64 *
  49 aclParseEuiData(const char *t)
  50 {
  51     char buf[256];
  52     Eui::Eui64 *q = new Eui::Eui64;
  53     debugs(28, 5, "aclParseEuiData: " << t);
  54
  55     if (sscanf(t, "%[0-9a-fA-F:]", buf) != 1) {
  56         debugs(28, DBG_CRITICAL, "aclParseEuiData: Bad EUI-64 address: '" << t << "'");
  57         safe_free(q);
  58         return NULL;
  59     }
  60
  61     if (!q->decode(buf)) {
  62         debugs(28, DBG_CRITICAL, "" << cfg_filename << " line " << config_lineno << ": " << config_input_line);
  63         debugs(28, DBG_CRITICAL, "aclParseEuiData: Ignoring invalid EUI-64 acl entry: can't parse '" << buf << "'");
  64         safe_free(q);
  65         return NULL;
  66     }
  67
  68     return q;
  69 }
  70
  71 /*******************/
  72 /* aclParseEuiList */
  73 /*******************/
  74 void
  75 ACLEui64::parse()
  76 {
  77     while (const char * t = strtokFile()) {
  78         if (Eui::Eui64 * q = aclParseEuiData(t)) {
  79             eui64Data.insert(*q);
  80             safe_free(q);
  81         }
  82     }
  83 }
  84
  85 int
  86 ACLEui64::match(ACLChecklist *cl)
  87 {
  88     ACLFilledChecklist *checklist = Filled(cl);
  89
  90     /* IPv4 does not do EUI-64 (yet) */
  91     if (!checklist->src_addr.isIPv6()) {
  92         debugs(14, 3, "ACLEui64::match: IPv6 Required for EUI-64 Lookups. Skipping " << checklist->src_addr );
  93         return 0;
  94     }
  95
  96     Eui::Eui64 lookingFor;
  97     if (lookingFor.lookup(checklist->src_addr)) {
  98         bool found = (eui64Data.find(lookingFor) != eui64Data.end());
  99         debugs(28, 3,  checklist->src_addr << "' " << (found ? "found" : "NOT found"));
 100         return found;
 101     }
 102
 103     debugs(28, 3, checklist->src_addr << " NOT found");
 104     return 0;
 105 }
 106
 107 SBufList
 108 ACLEui64::dump() const
 109 {
 110     SBufList sl;
 111     for (auto i = eui64Data.cbegin(); i != eui64Data.end(); ++i) {
 112         static char buf[48];
 113         i->encode(buf,48);
 114         sl.push_back(SBuf(buf));
 115     }
 116     return sl;
 117 }
 118
 119 #endif /* USE_SQUID_EUI */
 120