1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
|
/*
* Client definitions for the CUPS scheduler.
*
* Copyright © 2007-2018 by Apple Inc.
* Copyright © 1997-2007 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
* missing or damaged, see the license at "http://www.cups.org/".
*/
#ifdef HAVE_AUTHORIZATION_H
# include <Security/Authorization.h>
#endif /* HAVE_AUTHORIZATION_H */
/*
* HTTP client structure...
*/
struct cupsd_client_s
{
int number; /* Connection number */
http_t *http; /* HTTP client connection */
ipp_t *request, /* IPP request information */
*response; /* IPP response information */
cupsd_location_t *best; /* Best match for AAA */
struct timeval start; /* Request start time */
http_state_t operation; /* Request operation */
off_t bytes; /* Bytes transferred for this request */
int is_browser; /* Is the client a web browser? */
int type; /* AuthType for username */
char username[HTTP_MAX_VALUE],
/* Username from Authorization: line */
password[HTTP_MAX_VALUE],
/* Password from Authorization: line */
uri[HTTP_MAX_URI],
/* Localized URL/URI for GET/PUT */
*filename, /* Filename of output file */
*command, /* Command to run */
*options, /* Options for command */
*query_string; /* QUERY_STRING environment variable */
int file; /* Input/output file */
int file_ready; /* Input ready on file/pipe? */
int pipe_pid; /* Pipe process ID (or 0 if not a pipe) */
http_status_t pipe_status; /* HTTP status from pipe process */
int sent_header, /* Non-zero if sent HTTP header */
got_fields, /* Non-zero if all fields seen */
header_used; /* Number of header bytes used */
char header[2048]; /* Header from CGI program */
cups_lang_t *language; /* Language to use */
#ifdef HAVE_SSL
int auto_ssl; /* Automatic test for SSL/TLS */
#endif /* HAVE_SSL */
http_addr_t clientaddr; /* Client's server address */
char clientname[256];/* Client's server name for connection */
int clientport; /* Client's server port for connection */
char servername[256];/* Server name for connection */
int serverport; /* Server port for connection */
#ifdef HAVE_GSSAPI
int have_gss; /* Have GSS credentials? */
uid_t gss_uid; /* User ID for local prints */
#endif /* HAVE_GSSAPI */
#ifdef HAVE_AUTHORIZATION_H
AuthorizationRef authref; /* Authorization ref */
#endif /* HAVE_AUTHORIZATION_H */
};
#define HTTP(con) ((con)->http)
/*
* HTTP listener structure...
*/
typedef struct
{
int fd; /* File descriptor for this server */
http_addr_t address; /* Bind address of socket */
http_encryption_t encryption; /* To encrypt or not to encrypt... */
#ifdef HAVE_ONDEMAND
int on_demand; /* Is this a socket from launchd/systemd/upstart? */
#endif /* HAVE_ONDEMAND */
} cupsd_listener_t;
/*
* Globals...
*/
VAR int LastClientNumber VALUE(0),
/* Last client connection number */
ListenBackLog VALUE(SOMAXCONN),
/* Max backlog of pending connections */
LocalPort VALUE(631),
/* Local port to use */
RemotePort VALUE(0);
/* Remote port to use */
VAR http_encryption_t LocalEncryption VALUE(HTTP_ENCRYPT_IF_REQUESTED);
/* Local port encryption to use */
VAR cups_array_t *Listeners VALUE(NULL);
/* Listening sockets */
VAR time_t ListeningPaused VALUE(0);
/* Time when listening was paused */
VAR cups_array_t *Clients VALUE(NULL),
/* HTTP clients */
*ActiveClients VALUE(NULL);
/* Active HTTP clients */
VAR char *ServerHeader VALUE(NULL);
/* Server header in requests */
VAR int CGIPipes[2] VALUE2(-1,-1);
/* Pipes for CGI error/debug output */
VAR cupsd_statbuf_t *CGIStatusBuffer VALUE(NULL);
/* Status buffer for pipes */
/*
* Prototypes...
*/
extern void cupsdAcceptClient(cupsd_listener_t *lis);
extern void cupsdCloseAllClients(void);
extern int cupsdCloseClient(cupsd_client_t *con);
extern void cupsdDeleteAllListeners(void);
extern void cupsdPauseListening(void);
extern int cupsdProcessIPPRequest(cupsd_client_t *con);
extern void cupsdReadClient(cupsd_client_t *con);
extern void cupsdResumeListening(void);
extern int cupsdSendCommand(cupsd_client_t *con, char *command,
char *options, int root);
extern int cupsdSendError(cupsd_client_t *con, http_status_t code,
int auth_type);
extern int cupsdSendHeader(cupsd_client_t *con, http_status_t code,
char *type, int auth_type);
extern void cupsdShutdownClient(cupsd_client_t *con);
extern void cupsdStartListening(void);
extern void cupsdStopListening(void);
extern void cupsdUpdateCGI(void);
extern void cupsdWriteClient(cupsd_client_t *con);
#ifdef HAVE_SSL
extern int cupsdEndTLS(cupsd_client_t *con);
extern int cupsdStartTLS(cupsd_client_t *con);
#endif /* HAVE_SSL */
|
