xrootd
XrdSecsssKT.hh
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1 #ifndef __SecsssKT__
2 #define __SecsssKT__
3 /******************************************************************************/
4 /* */
5 /* X r d S e c s s s K T . h h */
6 /* */
7 /* (c) 2008 by the Board of Trustees of the Leland Stanford, Jr., University */
8 /* All Rights Reserved */
9 /* Produced by Andrew Hanushevsky for Stanford University under contract */
10 /* DE-AC02-76-SFO0515 with the Department of Energy */
11 /* */
12 /* This file is part of the XRootD software suite. */
13 /* */
14 /* XRootD is free software: you can redistribute it and/or modify it under */
15 /* the terms of the GNU Lesser General Public License as published by the */
16 /* Free Software Foundation, either version 3 of the License, or (at your */
17 /* option) any later version. */
18 /* */
19 /* XRootD is distributed in the hope that it will be useful, but WITHOUT */
20 /* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or */
21 /* FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public */
22 /* License for more details. */
23 /* */
24 /* You should have received a copy of the GNU Lesser General Public License */
25 /* along with XRootD in a file called COPYING.LESSER (LGPL license) and file */
26 /* COPYING (GPL license). If not, see <http://www.gnu.org/licenses/>. */
27 /* */
28 /* The copyright holder's institutional names and contributor's names may not */
29 /* be used to endorse or promote products derived from this software without */
30 /* specific prior written permission of the institution or contributor. */
31 /******************************************************************************/
32 
33 #include <string.h>
34 #include <time.h>
35 #include "XrdSys/XrdSysPthread.hh"
36 
37 class XrdOucErrInfo;
38 class XrdOucStream;
39 
40 class XrdSecsssKT
41 {
42 public:
43 
44 class ktEnt
45 {
46 public:
47 
48 static const int maxKLen = 128;
49 static const int NameSZ = 192;
50 static const int UserSZ = 128;
51 static const int GrupSZ = 64;
52 
53 struct ktData
54  {long long ID;
55  time_t Crt;
56  time_t Exp;
57  int Opts;
58  int Len;
59  char Val[maxKLen];// Key strings are 1024 bits or less
60  char Name[NameSZ];// Key names are null terminated
61  char User[UserSZ];// Usr names are null terminated
62  char Grup[GrupSZ];// Grp names are null terminated
63  } Data;
64 
65 static const int anyUSR = 2;
66 static const int anyGRP = 4;
67 static const int usrGRP = 8;
68 
69  void NUG(ktEnt *ktP) {strcpy(Data.Name, ktP->Data.Name);
70  strcpy(Data.User, ktP->Data.User);
71  strcpy(Data.Grup, ktP->Data.Grup);
72  }
73  void Set(ktEnt &rhs) {Data.ID=rhs.Data.ID; Data.Len = rhs.Data.Len;
74  memcpy(Data.Val, rhs.Data.Val, Data.Len);
75  Data.Crt=rhs.Data.Crt; Data.Exp=rhs.Data.Exp;
76  }
77  ktEnt *Next;
78 
79  ktEnt() : Next(0) { Data.ID = -1; Data.Opts = 0;
80  *Data.Val = '\0'; *Data.Name = '\0';
81  *Data.User= '\0'; *Data.Grup = '\0';
82  }
83  ~ktEnt() {}
84 };
85 
86 void addKey(ktEnt &ktNew);
87 
88 int delKey(ktEnt &ktDel);
89 
90 static
91 char *genFN();
92 
93 static
94 void genKey(char *Buff, int blen);
95 
96 int getKey(ktEnt &ktEql);
97 
98 ktEnt *keyList() {return ktList;}
99 
100 void Refresh();
101 
102 time_t RefrTime() {return ktRefT;}
103 
104 int Rewrite(int Keep, int &numKeys, int &numTot, int &numExp);
105 
106 int Same(const char *path) {return (ktPath && !strcmp(ktPath, path));}
107 
108 void setPath(const char *Path)
109  {if (ktPath) free(ktPath); ktPath = strdup(Path);}
110 
111 enum xMode {isAdmin = 0, isClient, isServer};
112 
113  XrdSecsssKT(XrdOucErrInfo *, const char *, xMode, int refr=60*60);
114  ~XrdSecsssKT();
115 
116 private:
117 int eMsg(const char *epn, int rc, const char *txt1,
118  const char *txt2=0, const char *txt3=0, const char *txt4=0);
119 ktEnt *getKeyTab(XrdOucErrInfo *eInfo, time_t Mtime, mode_t Amode);
120 mode_t fileMode(const char *Path);
121 int isKey(ktEnt &ktRef, ktEnt *ktP, int Full=1);
122 void keyB2X(ktEnt *theKT, char *buff);
123 void keyX2B(ktEnt *theKT, char *xKey);
124 ktEnt *ktDecode0(XrdOucStream &kTab, XrdOucErrInfo *eInfo);
125 
126 XrdSysMutex myMutex;
127 char *ktPath;
128 ktEnt *ktList;
129 time_t ktMtime;
130 xMode ktMode;
131 time_t ktRefT;
132 int kthiID;
133 pthread_t ktRefID;
134 static int randFD;
135 };
136 #endif
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