scheduler/auth.h

   1 /*
   2  * "$Id$"
   3  *
   4  * Authorization definitions for the CUPS scheduler.
   5  *
   6  * Copyright 2007-2014 by Apple Inc.
   7  * Copyright 1997-2006 by Easy Software Products, all rights reserved.
   8  *
   9  * These coded instructions, statements, and computer programs are the
  10  * property of Apple Inc. and are protected by Federal copyright
  11  * law.  Distribution and use rights are outlined in the file "LICENSE.txt"
  12  * which should have been included with this file.  If this file is
  13  * file is missing or damaged, see the license at "http://www.cups.org/".
  14  */
  15
  16 /*
  17  * Include necessary headers...
  18  */
  19
  20 #include <pwd.h>
  21
  22
  23 /*
  24  * HTTP authorization types and levels...
  25  */
  26
  27 #define CUPSD_AUTH_DEFAULT      -1      /* Use DefaultAuthType */
  28 #define CUPSD_AUTH_NONE         0       /* No authentication */
  29 #define CUPSD_AUTH_BASIC        1       /* Basic authentication */
  30 #define CUPSD_AUTH_DIGEST       2       /* Digest authentication */
  31 #define CUPSD_AUTH_BASICDIGEST  3       /* Basic authentication w/passwd.md5 */
  32 #define CUPSD_AUTH_NEGOTIATE    4       /* Kerberos authentication */
  33 #define CUPSD_AUTH_AUTO         5       /* Kerberos or Basic, depending on configuration of server */
  34
  35 #define CUPSD_AUTH_ANON         0       /* Anonymous access */
  36 #define CUPSD_AUTH_USER         1       /* Must have a valid username/password */
  37 #define CUPSD_AUTH_GROUP        2       /* Must also be in a named group */
  38
  39 #define CUPSD_AUTH_ALLOW        0       /* Allow access */
  40 #define CUPSD_AUTH_DENY         1       /* Deny access */
  41
  42 #define CUPSD_AUTH_NAME         0       /* Authorize host by name */
  43 #define CUPSD_AUTH_IP           1       /* Authorize host by IP */
  44 #define CUPSD_AUTH_INTERFACE    2       /* Authorize host by interface */
  45
  46 #define CUPSD_AUTH_SATISFY_ALL  0       /* Satisfy both address and auth */
  47 #define CUPSD_AUTH_SATISFY_ANY  1       /* Satisfy either address or auth */
  48
  49 #define CUPSD_AUTH_LIMIT_DELETE 1       /* Limit DELETE requests */
  50 #define CUPSD_AUTH_LIMIT_GET    2       /* Limit GET requests */
  51 #define CUPSD_AUTH_LIMIT_HEAD   4       /* Limit HEAD requests */
  52 #define CUPSD_AUTH_LIMIT_OPTIONS 8      /* Limit OPTIONS requests */
  53 #define CUPSD_AUTH_LIMIT_POST   16      /* Limit POST requests */
  54 #define CUPSD_AUTH_LIMIT_PUT    32      /* Limit PUT requests */
  55 #define CUPSD_AUTH_LIMIT_TRACE  64      /* Limit TRACE requests */
  56 #define CUPSD_AUTH_LIMIT_ALL    127     /* Limit all requests */
  57 #define CUPSD_AUTH_LIMIT_IPP    128     /* Limit IPP requests */
  58
  59 #define IPP_ANY_OPERATION       (ipp_op_t)0
  60                                         /* Any IPP operation */
  61 #define IPP_BAD_OPERATION       (ipp_op_t)-1
  62                                         /* No IPP operation */
  63
  64
  65 /*
  66  * HTTP access control structures...
  67  */
  68
  69 typedef struct
  70 {
  71   unsigned      address[4],             /* IP address */
  72                 netmask[4];             /* IP netmask */
  73 } cupsd_ipmask_t;
  74
  75 typedef struct
  76 {
  77   size_t        length;                 /* Length of name */
  78   char          *name;                  /* Name string */
  79 } cupsd_namemask_t;
  80
  81 typedef struct
  82 {
  83   int           type;                   /* Mask type */
  84   union
  85   {
  86     cupsd_namemask_t    name;           /* Host/Domain name */
  87     cupsd_ipmask_t      ip;             /* IP address/network */
  88   }             mask;                   /* Mask data */
  89 } cupsd_authmask_t;
  90
  91 typedef struct
  92 {
  93   char                  *location;      /* Location of resource */
  94   size_t                length;         /* Length of location string */
  95   ipp_op_t              op;             /* IPP operation */
  96   int                   limit,          /* Limit for these types of requests */
  97                         order_type,     /* Allow or Deny */
  98                         type,           /* Type of authentication */
  99                         level,          /* Access level required */
 100                         satisfy;        /* Satisfy any or all limits? */
 101   cups_array_t          *names,         /* User or group names */
 102                         *allow,         /* Allow lines */
 103                         *deny;          /* Deny lines */
 104   http_encryption_t     encryption;     /* To encrypt or not to encrypt... */
 105 } cupsd_location_t;
 106
 107 typedef struct cupsd_client_s cupsd_client_t;
 108
 109
 110 /*
 111  * Globals...
 112  */
 113
 114 VAR cups_array_t        *Locations      VALUE(NULL);
 115                                         /* Authorization locations */
 116 #ifdef HAVE_SSL
 117 VAR http_encryption_t   DefaultEncryption VALUE(HTTP_ENCRYPT_REQUIRED);
 118                                         /* Default encryption for authentication */
 119 #endif /* HAVE_SSL */
 120
 121
 122 /*
 123  * Prototypes...
 124  */
 125
 126 extern int              cupsdAddIPMask(cups_array_t **masks,
 127                                        const unsigned address[4],
 128                                        const unsigned netmask[4]);
 129 extern void             cupsdAddLocation(cupsd_location_t *loc);
 130 extern void             cupsdAddName(cupsd_location_t *loc, char *name);
 131 extern int              cupsdAddNameMask(cups_array_t **masks, char *name);
 132 extern void             cupsdAuthorize(cupsd_client_t *con);
 133 extern int              cupsdCheckAccess(unsigned ip[4], const char *name, size_t namelen, cupsd_location_t *loc);
 134 extern int              cupsdCheckAuth(unsigned ip[4], const char *name, size_t namelen, cups_array_t *masks);
 135 extern int              cupsdCheckGroup(const char *username,
 136                                         struct passwd *user,
 137                                         const char *groupname);
 138 extern cupsd_location_t *cupsdCopyLocation(cupsd_location_t *loc);
 139 extern void             cupsdDeleteAllLocations(void);
 140 extern cupsd_location_t *cupsdFindBest(const char *path, http_state_t state);
 141 extern cupsd_location_t *cupsdFindLocation(const char *location);
 142 extern void             cupsdFreeLocation(cupsd_location_t *loc);
 143 extern http_status_t    cupsdIsAuthorized(cupsd_client_t *con, const char *owner);
 144 extern cupsd_location_t *cupsdNewLocation(const char *location);
 145
 146
 147 /*
 148  * End of "$Id$".
 149  */