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7a14d768 | 1 | /* |
7e86f2f6 | 2 | * Private SNMP definitions for CUPS. |
7a14d768 | 3 | * |
7e86f2f6 MS |
4 | * Copyright 2007-2014 by Apple Inc. |
5 | * Copyright 2006-2007 by Easy Software Products, all rights reserved. | |
7a14d768 | 6 | * |
7e86f2f6 MS |
7 | * These coded instructions, statements, and computer programs are the |
8 | * property of Apple Inc. and are protected by Federal copyright | |
9 | * law. Distribution and use rights are outlined in the file "LICENSE.txt" | |
10 | * "LICENSE" which should have been included with this file. If this | |
11 | * file is missing or damaged, see the license at "http://www.cups.org/". | |
7a14d768 MS |
12 | */ |
13 | ||
71e16022 MS |
14 | #ifndef _CUPS_SNMP_PRIVATE_H_ |
15 | # define _CUPS_SNMP_PRIVATE_H_ | |
7a14d768 MS |
16 | |
17 | ||
18 | /* | |
19 | * Include necessary headers. | |
20 | */ | |
21 | ||
71e16022 | 22 | #include <cups/http.h> |
7a14d768 MS |
23 | |
24 | ||
25 | /* | |
26 | * Constants... | |
27 | */ | |
28 | ||
29 | #define CUPS_SNMP_PORT 161 /* SNMP well-known port */ | |
82cc1f9a | 30 | #define CUPS_SNMP_MAX_COMMUNITY 512 /* Maximum size of community name */ |
7a14d768 MS |
31 | #define CUPS_SNMP_MAX_OID 128 /* Maximum number of OID numbers */ |
32 | #define CUPS_SNMP_MAX_PACKET 1472 /* Maximum size of SNMP packet */ | |
f3c17241 | 33 | #define CUPS_SNMP_MAX_STRING 1024 /* Maximum size of string */ |
7a14d768 MS |
34 | #define CUPS_SNMP_VERSION_1 0 /* SNMPv1 */ |
35 | ||
36 | ||
37 | /* | |
38 | * Types... | |
39 | */ | |
40 | ||
41 | enum cups_asn1_e /**** ASN1 request/object types ****/ | |
42 | { | |
43 | CUPS_ASN1_END_OF_CONTENTS = 0x00, /* End-of-contents */ | |
44 | CUPS_ASN1_BOOLEAN = 0x01, /* BOOLEAN */ | |
45 | CUPS_ASN1_INTEGER = 0x02, /* INTEGER or ENUMERATION */ | |
46 | CUPS_ASN1_BIT_STRING = 0x03, /* BIT STRING */ | |
47 | CUPS_ASN1_OCTET_STRING = 0x04, /* OCTET STRING */ | |
48 | CUPS_ASN1_NULL_VALUE = 0x05, /* NULL VALUE */ | |
49 | CUPS_ASN1_OID = 0x06, /* OBJECT IDENTIFIER */ | |
50 | CUPS_ASN1_SEQUENCE = 0x30, /* SEQUENCE */ | |
51 | CUPS_ASN1_HEX_STRING = 0x40, /* Binary string aka Hex-STRING */ | |
52 | CUPS_ASN1_COUNTER = 0x41, /* 32-bit unsigned aka Counter32 */ | |
53 | CUPS_ASN1_GAUGE = 0x42, /* 32-bit unsigned aka Gauge32 */ | |
54 | CUPS_ASN1_TIMETICKS = 0x43, /* 32-bit unsigned aka Timeticks32 */ | |
55 | CUPS_ASN1_GET_REQUEST = 0xa0, /* GetRequest-PDU */ | |
56 | CUPS_ASN1_GET_NEXT_REQUEST = 0xa1, /* GetNextRequest-PDU */ | |
57 | CUPS_ASN1_GET_RESPONSE = 0xa2 /* GetResponse-PDU */ | |
58 | }; | |
59 | typedef enum cups_asn1_e cups_asn1_t; /**** ASN1 request/object types ****/ | |
60 | ||
d1c13e16 | 61 | typedef struct cups_snmp_string_s /**** String value ****/ |
7a14d768 MS |
62 | { |
63 | unsigned char bytes[CUPS_SNMP_MAX_STRING]; | |
64 | /* Bytes in string */ | |
7e86f2f6 | 65 | unsigned num_bytes; /* Number of bytes */ |
d1c13e16 | 66 | } cups_snmp_string_t; |
7a14d768 MS |
67 | |
68 | union cups_snmp_value_u /**** Object value ****/ | |
69 | { | |
70 | int boolean; /* Boolean value */ | |
71 | int integer; /* Integer value */ | |
7e86f2f6 | 72 | int counter; /* Counter value */ |
7a14d768 MS |
73 | unsigned gauge; /* Gauge value */ |
74 | unsigned timeticks; /* Timeticks value */ | |
75 | int oid[CUPS_SNMP_MAX_OID]; /* OID value */ | |
d1c13e16 | 76 | cups_snmp_string_t string; /* String value */ |
7a14d768 MS |
77 | }; |
78 | ||
79 | typedef struct cups_snmp_s /**** SNMP data packet ****/ | |
80 | { | |
81 | const char *error; /* Encode/decode error */ | |
82 | http_addr_t address; /* Source address */ | |
83 | int version; /* Version number */ | |
82cc1f9a | 84 | char community[CUPS_SNMP_MAX_COMMUNITY]; |
7a14d768 MS |
85 | /* Community name */ |
86 | cups_asn1_t request_type; /* Request type */ | |
7e86f2f6 | 87 | unsigned request_id; /* request-id value */ |
7a14d768 MS |
88 | int error_status; /* error-status value */ |
89 | int error_index; /* error-index value */ | |
90 | int object_name[CUPS_SNMP_MAX_OID]; | |
91 | /* object-name value */ | |
92 | cups_asn1_t object_type; /* object-value type */ | |
93 | union cups_snmp_value_u | |
94 | object_value; /* object-value value */ | |
95 | } cups_snmp_t; | |
96 | ||
97 | typedef void (*cups_snmp_cb_t)(cups_snmp_t *packet, void *data); | |
98 | ||
99 | /* | |
100 | * Prototypes... | |
101 | */ | |
102 | ||
103 | # ifdef __cplusplus | |
104 | extern "C" { | |
105 | # endif /* __cplusplus */ | |
106 | ||
107 | extern void _cupsSNMPClose(int fd) _CUPS_API_1_4; | |
108 | extern int *_cupsSNMPCopyOID(int *dst, const int *src, int dstsize) | |
109 | _CUPS_API_1_4; | |
110 | extern const char *_cupsSNMPDefaultCommunity(void) _CUPS_API_1_4; | |
111 | extern int _cupsSNMPIsOID(cups_snmp_t *packet, const int *oid) | |
112 | _CUPS_API_1_4; | |
113 | extern int _cupsSNMPIsOIDPrefixed(cups_snmp_t *packet, | |
114 | const int *prefix) _CUPS_API_1_4; | |
20fbc903 MS |
115 | extern char *_cupsSNMPOIDToString(const int *src, char *dst, |
116 | size_t dstsize) _CUPS_API_1_4; | |
7a14d768 MS |
117 | extern int _cupsSNMPOpen(int family) _CUPS_API_1_4; |
118 | extern cups_snmp_t *_cupsSNMPRead(int fd, cups_snmp_t *packet, | |
119 | double timeout) _CUPS_API_1_4; | |
120 | extern void _cupsSNMPSetDebug(int level) _CUPS_API_1_4; | |
20fbc903 MS |
121 | extern int *_cupsSNMPStringToOID(const char *src, |
122 | int *dst, int dstsize) | |
123 | _CUPS_API_1_4; | |
7a14d768 MS |
124 | extern int _cupsSNMPWalk(int fd, http_addr_t *address, int version, |
125 | const char *community, const int *prefix, | |
126 | double timeout, cups_snmp_cb_t cb, | |
127 | void *data) _CUPS_API_1_4; | |
128 | extern int _cupsSNMPWrite(int fd, http_addr_t *address, int version, | |
129 | const char *community, | |
130 | cups_asn1_t request_type, | |
131 | const unsigned request_id, | |
132 | const int *oid) _CUPS_API_1_4; | |
133 | ||
134 | # ifdef __cplusplus | |
135 | } | |
136 | # endif /* __cplusplus */ | |
71e16022 | 137 | #endif /* !_CUPS_SNMP_PRIVATE_H_ */ |