Haibo Huang | 4c28362 | 2019-12-13 16:47:52 -0800 | [diff] [blame] | 1 | /* |
| 2 | * Authorization definitions for the CUPS scheduler. |
| 3 | * |
| 4 | * Copyright 2007-2014 by Apple Inc. |
| 5 | * Copyright 1997-2006 by Easy Software Products, all rights reserved. |
| 6 | * |
| 7 | * Licensed under Apache License v2.0. See the file "LICENSE" for more information. |
| 8 | */ |
| 9 | |
| 10 | /* |
| 11 | * Include necessary headers... |
| 12 | */ |
| 13 | |
| 14 | #include <pwd.h> |
| 15 | |
| 16 | |
| 17 | /* |
| 18 | * HTTP authorization types and levels... |
| 19 | */ |
| 20 | |
| 21 | #define CUPSD_AUTH_DEFAULT -1 /* Use DefaultAuthType */ |
| 22 | #define CUPSD_AUTH_NONE 0 /* No authentication */ |
| 23 | #define CUPSD_AUTH_BASIC 1 /* Basic authentication */ |
| 24 | #define CUPSD_AUTH_NEGOTIATE 2 /* Kerberos authentication */ |
| 25 | #define CUPSD_AUTH_AUTO 3 /* Kerberos or Basic, depending on configuration of server */ |
| 26 | |
| 27 | #define CUPSD_AUTH_ANON 0 /* Anonymous access */ |
| 28 | #define CUPSD_AUTH_USER 1 /* Must have a valid username/password */ |
| 29 | #define CUPSD_AUTH_GROUP 2 /* Must also be in a named group */ |
| 30 | |
| 31 | #define CUPSD_AUTH_ALLOW 0 /* Allow access */ |
| 32 | #define CUPSD_AUTH_DENY 1 /* Deny access */ |
| 33 | |
| 34 | #define CUPSD_AUTH_NAME 0 /* Authorize host by name */ |
| 35 | #define CUPSD_AUTH_IP 1 /* Authorize host by IP */ |
| 36 | #define CUPSD_AUTH_INTERFACE 2 /* Authorize host by interface */ |
| 37 | |
| 38 | #define CUPSD_AUTH_SATISFY_ALL 0 /* Satisfy both address and auth */ |
| 39 | #define CUPSD_AUTH_SATISFY_ANY 1 /* Satisfy either address or auth */ |
| 40 | |
| 41 | #define CUPSD_AUTH_LIMIT_DELETE 1 /* Limit DELETE requests */ |
| 42 | #define CUPSD_AUTH_LIMIT_GET 2 /* Limit GET requests */ |
| 43 | #define CUPSD_AUTH_LIMIT_HEAD 4 /* Limit HEAD requests */ |
| 44 | #define CUPSD_AUTH_LIMIT_OPTIONS 8 /* Limit OPTIONS requests */ |
| 45 | #define CUPSD_AUTH_LIMIT_POST 16 /* Limit POST requests */ |
| 46 | #define CUPSD_AUTH_LIMIT_PUT 32 /* Limit PUT requests */ |
| 47 | #define CUPSD_AUTH_LIMIT_TRACE 64 /* Limit TRACE requests */ |
| 48 | #define CUPSD_AUTH_LIMIT_ALL 127 /* Limit all requests */ |
| 49 | #define CUPSD_AUTH_LIMIT_IPP 128 /* Limit IPP requests */ |
| 50 | |
| 51 | #define IPP_ANY_OPERATION (ipp_op_t)0 |
| 52 | /* Any IPP operation */ |
| 53 | #define IPP_BAD_OPERATION (ipp_op_t)-1 |
| 54 | /* No IPP operation */ |
| 55 | |
| 56 | |
| 57 | /* |
| 58 | * HTTP access control structures... |
| 59 | */ |
| 60 | |
| 61 | typedef struct |
| 62 | { |
| 63 | unsigned address[4], /* IP address */ |
| 64 | netmask[4]; /* IP netmask */ |
| 65 | } cupsd_ipmask_t; |
| 66 | |
| 67 | typedef struct |
| 68 | { |
| 69 | size_t length; /* Length of name */ |
| 70 | char *name; /* Name string */ |
| 71 | } cupsd_namemask_t; |
| 72 | |
| 73 | typedef struct |
| 74 | { |
| 75 | int type; /* Mask type */ |
| 76 | union |
| 77 | { |
| 78 | cupsd_namemask_t name; /* Host/Domain name */ |
| 79 | cupsd_ipmask_t ip; /* IP address/network */ |
| 80 | } mask; /* Mask data */ |
| 81 | } cupsd_authmask_t; |
| 82 | |
| 83 | typedef struct |
| 84 | { |
| 85 | char *location; /* Location of resource */ |
| 86 | size_t length; /* Length of location string */ |
| 87 | ipp_op_t op; /* IPP operation */ |
| 88 | int limit, /* Limit for these types of requests */ |
| 89 | order_type, /* Allow or Deny */ |
| 90 | type, /* Type of authentication */ |
| 91 | level, /* Access level required */ |
| 92 | satisfy; /* Satisfy any or all limits? */ |
| 93 | cups_array_t *names, /* User or group names */ |
| 94 | *allow, /* Allow lines */ |
| 95 | *deny; /* Deny lines */ |
| 96 | http_encryption_t encryption; /* To encrypt or not to encrypt... */ |
| 97 | } cupsd_location_t; |
| 98 | |
| 99 | typedef struct cupsd_client_s cupsd_client_t; |
| 100 | |
| 101 | |
| 102 | /* |
| 103 | * Globals... |
| 104 | */ |
| 105 | |
| 106 | VAR cups_array_t *Locations VALUE(NULL); |
| 107 | /* Authorization locations */ |
| 108 | #ifdef HAVE_SSL |
| 109 | VAR http_encryption_t DefaultEncryption VALUE(HTTP_ENCRYPT_REQUIRED); |
| 110 | /* Default encryption for authentication */ |
| 111 | #endif /* HAVE_SSL */ |
| 112 | |
| 113 | |
| 114 | /* |
| 115 | * Prototypes... |
| 116 | */ |
| 117 | |
| 118 | extern int cupsdAddIPMask(cups_array_t **masks, |
| 119 | const unsigned address[4], |
| 120 | const unsigned netmask[4]); |
| 121 | extern void cupsdAddLocation(cupsd_location_t *loc); |
| 122 | extern void cupsdAddName(cupsd_location_t *loc, char *name); |
| 123 | extern int cupsdAddNameMask(cups_array_t **masks, char *name); |
| 124 | extern void cupsdAuthorize(cupsd_client_t *con); |
| 125 | extern int cupsdCheckAccess(unsigned ip[4], const char *name, size_t namelen, cupsd_location_t *loc); |
| 126 | extern int cupsdCheckAuth(unsigned ip[4], const char *name, size_t namelen, cups_array_t *masks); |
| 127 | extern int cupsdCheckGroup(const char *username, |
| 128 | struct passwd *user, |
| 129 | const char *groupname); |
| 130 | extern cupsd_location_t *cupsdCopyLocation(cupsd_location_t *loc); |
| 131 | extern void cupsdDeleteAllLocations(void); |
| 132 | extern cupsd_location_t *cupsdFindBest(const char *path, http_state_t state); |
| 133 | extern cupsd_location_t *cupsdFindLocation(const char *location); |
| 134 | extern void cupsdFreeLocation(cupsd_location_t *loc); |
| 135 | extern http_status_t cupsdIsAuthorized(cupsd_client_t *con, const char *owner); |
| 136 | extern cupsd_location_t *cupsdNewLocation(const char *location); |