[thirdparty/cups.git] / scheduler / auth.h

/*
 * "$Id: auth.h 6649 2007-07-11 21:46:42Z mike $"
 *
 *   Authorization definitions for the Common UNIX Printing System (CUPS)
 *   scheduler.
 *
 *   Copyright 2007 by Apple Inc.
 *   Copyright 1997-2006 by Easy Software Products, all rights reserved.
 *
 *   These coded instructions, statements, and computer programs are the
 *   property of Apple Inc. and are protected by Federal copyright
 *   law.  Distribution and use rights are outlined in the file "LICENSE.txt"
 *   which should have been included with this file.  If this file is
 *   file is missing or damaged, see the license at "http://www.cups.org/".
 */

/*
 * Include necessary headers...
 */

#include <pwd.h>


/*
 * HTTP authorization types and levels...
 */

#define AUTH_NONE		0	/* No authentication */
#define AUTH_BASIC		1	/* Basic authentication */
#define AUTH_DIGEST		2	/* Digest authentication */
#define AUTH_BASICDIGEST	3	/* Basic authentication w/passwd.md5 */
#define AUTH_NEGOTIATE		4	/* Kerberos authentication */

#define AUTH_ANON		0	/* Anonymous access */
#define AUTH_USER		1	/* Must have a valid username/password */
#define AUTH_GROUP		2	/* Must also be in a named group */

#define AUTH_ALLOW		0	/* Allow access */
#define AUTH_DENY		1	/* Deny access */

#define AUTH_NAME		0	/* Authorize host by name */
#define AUTH_IP			1	/* Authorize host by IP */
#define AUTH_INTERFACE		2	/* Authorize host by interface */

#define AUTH_SATISFY_ALL	0	/* Satisfy both address and auth */
#define AUTH_SATISFY_ANY	1	/* Satisfy either address or auth */

#define AUTH_LIMIT_DELETE	1	/* Limit DELETE requests */
#define AUTH_LIMIT_GET		2	/* Limit GET requests */
#define AUTH_LIMIT_HEAD		4	/* Limit HEAD requests */
#define AUTH_LIMIT_OPTIONS	8	/* Limit OPTIONS requests */
#define AUTH_LIMIT_POST		16	/* Limit POST requests */
#define AUTH_LIMIT_PUT		32	/* Limit PUT requests */
#define AUTH_LIMIT_TRACE	64	/* Limit TRACE requests */
#define AUTH_LIMIT_ALL		127	/* Limit all requests */
#define AUTH_LIMIT_IPP		128	/* Limit IPP requests */

#define IPP_ANY_OPERATION	(ipp_op_t)0
					/* Any IPP operation */
#define IPP_BAD_OPERATION	(ipp_op_t)-1
					/* No IPP operation */


/*
 * HTTP access control structures...
 */

typedef struct
{
  unsigned	address[4],		/* IP address */
		netmask[4];		/* IP netmask */
} cupsd_ipmask_t;

typedef struct
{
  int		length;			/* Length of name */
  char		*name;			/* Name string */
} cupsd_namemask_t;

typedef struct
{
  int		type;			/* Mask type */
  union
  {
    cupsd_namemask_t	name;		/* Host/Domain name */
    cupsd_ipmask_t	ip;		/* IP address/network */
  }		mask;			/* Mask data */
} cupsd_authmask_t;

typedef struct
{
  char			*location;	/* Location of resource */
  ipp_op_t		op;		/* IPP operation */
  int			limit,		/* Limit for these types of requests */
			length,		/* Length of location string */
			order_type,	/* Allow or Deny */
			type,		/* Type of authentication */
			level,		/* Access level required */
			satisfy;	/* Satisfy any or all limits? */
  int			num_names;	/* Number of names */
  char			**names;	/* User or group names */
  int			num_allow;	/* Number of Allow lines */
  cupsd_authmask_t	*allow;		/* Allow lines */
  int			num_deny;	/* Number of Deny lines */
  cupsd_authmask_t	*deny;		/* Deny lines */
  http_encryption_t	encryption;	/* To encrypt or not to encrypt... */
} cupsd_location_t;

typedef struct cupsd_client_s cupsd_client_t;


/*
 * Globals...
 */

VAR cups_array_t	*Locations	VALUE(NULL);
					/* Authorization locations */
VAR int			DefaultAuthType	VALUE(AUTH_BASIC);
					/* Default AuthType, if not specified */
#ifdef HAVE_SSL
VAR http_encryption_t	DefaultEncryption VALUE(HTTP_ENCRYPT_REQUIRED);
					/* Default encryption for authentication */
#endif /* HAVE_SSL */


/*
 * Prototypes...
 */

extern cupsd_location_t	*cupsdAddLocation(const char *location);
extern void		cupsdAddName(cupsd_location_t *loc, char *name);
extern void		cupsdAllowHost(cupsd_location_t *loc, char *name);
extern void		cupsdAllowIP(cupsd_location_t *loc, unsigned address[4],
			             unsigned netmask[4]);
extern void		cupsdAuthorize(cupsd_client_t *con);
extern int		cupsdCheckAuth(unsigned ip[4], char *name, int namelen,
				       int num_masks, cupsd_authmask_t *masks);
extern int		cupsdCheckGroup(const char *username,
			                struct passwd *user,
			                const char *groupname);
extern cupsd_location_t	*cupsdCopyLocation(cupsd_location_t **loc);
extern void		cupsdDeleteAllLocations(void);
extern void		cupsdDeleteLocation(cupsd_location_t *loc);
extern void		cupsdDenyHost(cupsd_location_t *loc, char *name);
extern void		cupsdDenyIP(cupsd_location_t *loc, unsigned address[4],
			            unsigned netmask[4]);
extern cupsd_location_t	*cupsdFindBest(const char *path, http_state_t state);
extern cupsd_location_t	*cupsdFindLocation(const char *location);
extern http_status_t	cupsdIsAuthorized(cupsd_client_t *con, const char *owner);


/*
 * End of "$Id: auth.h 6649 2007-07-11 21:46:42Z mike $".
 */
Commit	Line	Data
ef416fc2	1	/*
bc44d920	2	* "$Id: auth.h 6649 2007-07-11 21:46:42Z mike $"
ef416fc2	3	*
	4	* Authorization definitions for the Common UNIX Printing System (CUPS)
	5	* scheduler.
	6	*
bc44d920	7	* Copyright 2007 by Apple Inc.
bd7854cb	8	* Copyright 1997-2006 by Easy Software Products, all rights reserved.
ef416fc2	9	*
ef416fc2	10	* These coded instructions, statements, and computer programs are the
bc44d920	11	* property of Apple Inc. and are protected by Federal copyright
	12	* law. Distribution and use rights are outlined in the file "LICENSE.txt"
	13	* which should have been included with this file. If this file is
	14	* file is missing or damaged, see the license at "http://www.cups.org/".
ef416fc2	15	*/
	16
	17	/*
	18	* Include necessary headers...
	19	*/
	20
	21	#include <pwd.h>
	22
	23
	24	/*
	25	* HTTP authorization types and levels...
	26	*/
	27
	28	#define AUTH_NONE 0 /* No authentication */
	29	#define AUTH_BASIC 1 /* Basic authentication */
	30	#define AUTH_DIGEST 2 /* Digest authentication */
	31	#define AUTH_BASICDIGEST 3 /* Basic authentication w/passwd.md5 */
7594b224	32	#define AUTH_NEGOTIATE 4 /* Kerberos authentication */
ef416fc2	33
	34	#define AUTH_ANON 0 /* Anonymous access */
	35	#define AUTH_USER 1 /* Must have a valid username/password */
	36	#define AUTH_GROUP 2 /* Must also be in a named group */
	37
	38	#define AUTH_ALLOW 0 /* Allow access */
	39	#define AUTH_DENY 1 /* Deny access */
	40
	41	#define AUTH_NAME 0 /* Authorize host by name */
	42	#define AUTH_IP 1 /* Authorize host by IP */
	43	#define AUTH_INTERFACE 2 /* Authorize host by interface */
	44
	45	#define AUTH_SATISFY_ALL 0 /* Satisfy both address and auth */
	46	#define AUTH_SATISFY_ANY 1 /* Satisfy either address or auth */
	47
	48	#define AUTH_LIMIT_DELETE 1 /* Limit DELETE requests */
	49	#define AUTH_LIMIT_GET 2 /* Limit GET requests */
	50	#define AUTH_LIMIT_HEAD 4 /* Limit HEAD requests */
	51	#define AUTH_LIMIT_OPTIONS 8 /* Limit OPTIONS requests */
	52	#define AUTH_LIMIT_POST 16 /* Limit POST requests */
	53	#define AUTH_LIMIT_PUT 32 /* Limit PUT requests */
	54	#define AUTH_LIMIT_TRACE 64 /* Limit TRACE requests */
	55	#define AUTH_LIMIT_ALL 127 /* Limit all requests */
	56	#define 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	{
bd7854cb	92	char location; / Location of resource */
ef416fc2	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	int num_names; /* Number of names */
	101	char *names; / User or group names */
	102	int num_allow; /* Number of Allow lines */
	103	cupsd_authmask_t allow; / Allow lines */
	104	int num_deny; /* Number of Deny lines */
	105	cupsd_authmask_t deny; / Deny lines */
	106	http_encryption_t encryption; /* To encrypt or not to encrypt... */
	107	} cupsd_location_t;
	108
	109	typedef struct cupsd_client_s cupsd_client_t;
	110
	111
	112	/*
	113	* Globals...
	114	*/
	115
bd7854cb	116	VAR cups_array_t *Locations VALUE(NULL);
ef416fc2	117	/* Authorization locations */
	118	VAR int DefaultAuthType VALUE(AUTH_BASIC);
	119	/* Default AuthType, if not specified */
4744bd90	120	#ifdef HAVE_SSL
	121	VAR http_encryption_t DefaultEncryption VALUE(HTTP_ENCRYPT_REQUIRED);
	122	/* Default encryption for authentication */
	123	#endif /* HAVE_SSL */
ef416fc2	124
	125
	126	/*
	127	* Prototypes...
	128	*/
	129
	130	extern cupsd_location_t cupsdAddLocation(const char location);
	131	extern void cupsdAddName(cupsd_location_t loc, char name);
	132	extern void cupsdAllowHost(cupsd_location_t loc, char name);
	133	extern void cupsdAllowIP(cupsd_location_t *loc, unsigned address[4],
	134	unsigned netmask[4]);
	135	extern void cupsdAuthorize(cupsd_client_t *con);
	136	extern int cupsdCheckAuth(unsigned ip[4], char *name, int namelen,
	137	int num_masks, cupsd_authmask_t *masks);
	138	extern int cupsdCheckGroup(const char *username,
	139	struct passwd *user,
	140	const char *groupname);
	141	extern cupsd_location_t cupsdCopyLocation(cupsd_location_t *loc);
	142	extern void cupsdDeleteAllLocations(void);
	143	extern void cupsdDeleteLocation(cupsd_location_t *loc);
	144	extern void cupsdDenyHost(cupsd_location_t loc, char name);
	145	extern void cupsdDenyIP(cupsd_location_t *loc, unsigned address[4],
	146	unsigned netmask[4]);
	147	extern cupsd_location_t cupsdFindBest(const char path, http_state_t state);
	148	extern cupsd_location_t cupsdFindLocation(const char location);
ef416fc2	149	extern http_status_t cupsdIsAuthorized(cupsd_client_t con, const char owner);
	150
	151
	152	/*
bc44d920	153	* End of "$Id: auth.h 6649 2007-07-11 21:46:42Z mike $".
ef416fc2	154	*/