scheduler/auth.h

   1 /*
   2  * "$Id: auth.h 7317 2008-02-15 22:29:27Z mike $"
   3  *
   4  *   Authorization definitions for the CUPS scheduler.
   5  *
   6  *   Copyright 2007-2010 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
  34 #define CUPSD_AUTH_ANON         0       /* Anonymous access */
  35 #define CUPSD_AUTH_USER         1       /* Must have a valid username/password */
  36 #define CUPSD_AUTH_GROUP        2       /* Must also be in a named group */
  37
  38 #define CUPSD_AUTH_ALLOW        0       /* Allow access */
  39 #define CUPSD_AUTH_DENY         1       /* Deny access */
  40
  41 #define CUPSD_AUTH_NAME         0       /* Authorize host by name */
  42 #define CUPSD_AUTH_IP           1       /* Authorize host by IP */
  43 #define CUPSD_AUTH_INTERFACE    2       /* Authorize host by interface */
  44
  45 #define CUPSD_AUTH_SATISFY_ALL  0       /* Satisfy both address and auth */
  46 #define CUPSD_AUTH_SATISFY_ANY  1       /* Satisfy either address or auth */
  47
  48 #define CUPSD_AUTH_LIMIT_DELETE 1       /* Limit DELETE requests */
  49 #define CUPSD_AUTH_LIMIT_GET    2       /* Limit GET requests */
  50 #define CUPSD_AUTH_LIMIT_HEAD   4       /* Limit HEAD requests */
  51 #define CUPSD_AUTH_LIMIT_OPTIONS 8      /* Limit OPTIONS requests */
  52 #define CUPSD_AUTH_LIMIT_POST   16      /* Limit POST requests */
  53 #define CUPSD_AUTH_LIMIT_PUT    32      /* Limit PUT requests */
  54 #define CUPSD_AUTH_LIMIT_TRACE  64      /* Limit TRACE requests */
  55 #define CUPSD_AUTH_LIMIT_ALL    127     /* Limit all requests */
  56 #define CUPSD_AUTH_LIMIT_IPP    128     /* Limit IPP requests */
  57
  58 #define IPP_ANY_OPERATION       (ipp_op_t)0
  59                                         /* Any IPP operation */
  60 #define IPP_BAD_OPERATION       (ipp_op_t)-1
  61                                         /* No IPP operation */
  62
  63
  64 /*
  65  * HTTP access control structures...
  66  */
  67
  68 typedef struct
  69 {
  70   unsigned      address[4],             /* IP address */
  71                 netmask[4];             /* IP netmask */
  72 } cupsd_ipmask_t;
  73
  74 typedef struct
  75 {
  76   int           length;                 /* Length of name */
  77   char          *name;                  /* Name string */
  78 } cupsd_namemask_t;
  79
  80 typedef struct
  81 {
  82   int           type;                   /* Mask type */
  83   union
  84   {
  85     cupsd_namemask_t    name;           /* Host/Domain name */
  86     cupsd_ipmask_t      ip;             /* IP address/network */
  87   }             mask;                   /* Mask data */
  88 } cupsd_authmask_t;
  89
  90 typedef struct
  91 {
  92   char                  *location;      /* Location of resource */
  93   ipp_op_t              op;             /* IPP operation */
  94   int                   limit,          /* Limit for these types of requests */
  95                         length,         /* Length of location string */
  96                         order_type,     /* Allow or Deny */
  97                         type,           /* Type of authentication */
  98                         level,          /* Access level required */
  99                         satisfy;        /* Satisfy any or all limits? */
 100   cups_array_t          *names,         /* User or group names */
 101                         *allow,         /* Allow lines */
 102                         *deny;          /* Deny lines */
 103   http_encryption_t     encryption;     /* To encrypt or not to encrypt... */
 104 } cupsd_location_t;
 105
 106 typedef struct cupsd_client_s cupsd_client_t;
 107
 108
 109 /*
 110  * Globals...
 111  */
 112
 113 VAR cups_array_t        *Locations      VALUE(NULL);
 114                                         /* Authorization locations */
 115 VAR int                 DefaultAuthType VALUE(CUPSD_AUTH_BASIC);
 116                                         /* Default AuthType, if not specified */
 117 #ifdef HAVE_SSL
 118 VAR http_encryption_t   DefaultEncryption VALUE(HTTP_ENCRYPT_REQUIRED);
 119                                         /* Default encryption for authentication */
 120 #endif /* HAVE_SSL */
 121
 122
 123 /*
 124  * Prototypes...
 125  */
 126
 127 extern int              cupsdAddIPMask(cups_array_t **masks,
 128                                        const unsigned address[4],
 129                                        const unsigned netmask[4]);
 130 extern void             cupsdAddLocation(cupsd_location_t *loc);
 131 extern void             cupsdAddName(cupsd_location_t *loc, char *name);
 132 extern int              cupsdAddNameMask(cups_array_t **masks, char *name);
 133 extern void             cupsdAuthorize(cupsd_client_t *con);
 134 extern int              cupsdCheckAccess(unsigned ip[4], char *name,
 135                                          int namelen, cupsd_location_t *loc);
 136 extern int              cupsdCheckAuth(unsigned ip[4], char *name, int namelen,
 137                                        cups_array_t *masks);
 138 extern int              cupsdCheckGroup(const char *username,
 139                                         struct passwd *user,
 140                                         const char *groupname);
 141 #ifdef HAVE_GSSAPI
 142 extern krb5_ccache      cupsdCopyKrb5Creds(cupsd_client_t *con);
 143 #endif /* HAVE_GSSAPI */
 144 extern cupsd_location_t *cupsdCopyLocation(cupsd_location_t *loc);
 145 extern void             cupsdDeleteAllLocations(void);
 146 extern cupsd_location_t *cupsdFindBest(const char *path, http_state_t state);
 147 extern cupsd_location_t *cupsdFindLocation(const char *location);
 148 extern void             cupsdFreeLocation(cupsd_location_t *loc);
 149 extern http_status_t    cupsdIsAuthorized(cupsd_client_t *con, const char *owner);
 150 extern cupsd_location_t *cupsdNewLocation(const char *location);
 151
 152
 153 /*
 154  * End of "$Id: auth.h 7317 2008-02-15 22:29:27Z mike $".
 155  */