scheduler/client.h

   1 /*
   2  * "$Id: client.h 9652 2011-03-25 21:25:38Z mike $"
   3  *
   4  *   Client definitions for the CUPS scheduler.
   5  *
   6  *   Copyright 2007-2011 by Apple Inc.
   7  *   Copyright 1997-2007 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 #ifdef HAVE_AUTHORIZATION_H
  17 #  include <Security/Authorization.h>
  18 #endif /* HAVE_AUTHORIZATION_H */
  19
  20
  21 /*
  22  * HTTP client structure...
  23  */
  24
  25 struct cupsd_client_s
  26 {
  27   http_t                http;           /* HTTP client connection */
  28   ipp_t                 *request,       /* IPP request information */
  29                         *response;      /* IPP response information */
  30   cupsd_location_t      *best;          /* Best match for AAA */
  31   struct timeval        start;          /* Request start time */
  32   http_state_t          operation;      /* Request operation */
  33   off_t                 bytes;          /* Bytes transferred for this request */
  34   int                   type;           /* AuthType for username */
  35   char                  username[256],  /* Username from Authorization: line */
  36                         password[33],   /* Password from Authorization: line */
  37                         uri[HTTP_MAX_URI],
  38                                         /* Localized URL/URI for GET/PUT */
  39                         *filename,      /* Filename of output file */
  40                         *command,       /* Command to run */
  41                         *options,       /* Options for command */
  42                         *query_string;  /* QUERY_STRING environment variable */
  43   int                   file;           /* Input/output file */
  44   int                   file_ready;     /* Input ready on file/pipe? */
  45   int                   pipe_pid;       /* Pipe process ID (or 0 if not a pipe) */
  46   int                   sent_header,    /* Non-zero if sent HTTP header */
  47                         got_fields,     /* Non-zero if all fields seen */
  48                         header_used;    /* Number of header bytes used */
  49   char                  header[2048];   /* Header from CGI program */
  50   cups_lang_t           *language;      /* Language to use */
  51 #ifdef HAVE_SSL
  52   int                   auto_ssl;       /* Automatic test for SSL/TLS */
  53 #endif /* HAVE_SSL */
  54   http_addr_t           clientaddr;     /* Client address */
  55   char                  servername[256];/* Server name for connection */
  56   int                   serverport;     /* Server port for connection */
  57 #ifdef HAVE_GSSAPI
  58   int                   have_gss;       /* Have GSS credentials? */
  59   uid_t                 gss_uid;        /* User ID for local prints */
  60 #endif /* HAVE_GSSAPI */
  61 #ifdef HAVE_AUTHORIZATION_H
  62   AuthorizationRef      authref;        /* Authorization ref */
  63 #endif /* HAVE_AUTHORIZATION_H */
  64 };
  65
  66 #define HTTP(con) &((con)->http)
  67
  68
  69 /*
  70  * HTTP listener structure...
  71  */
  72
  73 typedef struct
  74 {
  75   int                   fd;             /* File descriptor for this server */
  76   http_addr_t           address;        /* Bind address of socket */
  77   http_encryption_t     encryption;     /* To encrypt or not to encrypt... */
  78 #ifdef HAVE_SYSTEMD
  79   int                   is_systemd;     /* Is this a systemd socket? */
  80 #endif /* HAVE_SYSTEMD */
  81 } cupsd_listener_t;
  82
  83
  84 /*
  85  * Globals...
  86  */
  87
  88 VAR int                 ListenBackLog   VALUE(SOMAXCONN),
  89                                         /* Max backlog of pending connections */
  90                         LocalPort       VALUE(631),
  91                                         /* Local port to use */
  92                         RemotePort      VALUE(0);
  93                                         /* Remote port to use */
  94 VAR http_encryption_t   LocalEncryption VALUE(HTTP_ENCRYPT_IF_REQUESTED);
  95                                         /* Local port encryption to use */
  96 VAR cups_array_t        *Listeners      VALUE(NULL);
  97                                         /* Listening sockets */
  98 VAR time_t              ListeningPaused VALUE(0);
  99                                         /* Time when listening was paused */
 100 VAR cups_array_t        *Clients        VALUE(NULL),
 101                                         /* HTTP clients */
 102                         *ActiveClients  VALUE(NULL);
 103                                         /* Active HTTP clients */
 104 VAR char                *ServerHeader   VALUE(NULL);
 105                                         /* Server header in requests */
 106 VAR int                 CGIPipes[2]     VALUE2(-1,-1);
 107                                         /* Pipes for CGI error/debug output */
 108 VAR cupsd_statbuf_t     *CGIStatusBuffer VALUE(NULL);
 109                                         /* Status buffer for pipes */
 110
 111
 112 /*
 113  * Prototypes...
 114  */
 115
 116 extern void     cupsdAcceptClient(cupsd_listener_t *lis);
 117 extern void     cupsdCloseAllClients(void);
 118 extern int      cupsdCloseClient(cupsd_client_t *con);
 119 extern void     cupsdDeleteAllListeners(void);
 120 extern int      cupsdFlushHeader(cupsd_client_t *con);
 121 extern void     cupsdPauseListening(void);
 122 extern int      cupsdProcessIPPRequest(cupsd_client_t *con);
 123 extern void     cupsdReadClient(cupsd_client_t *con);
 124 extern void     cupsdResumeListening(void);
 125 extern int      cupsdSendCommand(cupsd_client_t *con, char *command,
 126                                  char *options, int root);
 127 extern int      cupsdSendError(cupsd_client_t *con, http_status_t code,
 128                                int auth_type);
 129 extern int      cupsdSendHeader(cupsd_client_t *con, http_status_t code,
 130                                 char *type, int auth_type);
 131 extern void     cupsdShutdownClient(cupsd_client_t *con);
 132 extern void     cupsdStartListening(void);
 133 extern void     cupsdStopListening(void);
 134 extern void     cupsdUpdateCGI(void);
 135 extern void     cupsdWriteClient(cupsd_client_t *con);
 136
 137
 138 /*
 139  * End of "$Id: client.h 9652 2011-03-25 21:25:38Z mike $".
 140  */