1/*-
2 * Copyright (c) 2009 The NetBSD Foundation, Inc.
3 * All rights reserved.
4 *
5 * This code is derived from software contributed to The NetBSD Foundation
6 * by Alistair Crooks (agc@NetBSD.org)
7 *
8 * Redistribution and use in source and binary forms, with or without
9 * modification, are permitted provided that the following conditions
10 * are met:
11 * 1. Redistributions of source code must retain the above copyright
12 *    notice, this list of conditions and the following disclaimer.
13 * 2. Redistributions in binary form must reproduce the above copyright
14 *    notice, this list of conditions and the following disclaimer in the
15 *    documentation and/or other materials provided with the distribution.
16 *
17 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
18 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
19 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
20 * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
21 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
22 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
23 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
24 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
25 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
26 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
27 * POSSIBILITY OF SUCH DAMAGE.
28 */
29/*
30 * Copyright (c) 2005-2008 Nominet UK (www.nic.uk)
31 * All rights reserved.
32 * Contributors: Ben Laurie, Rachel Willmer. The Contributors have asserted
33 * their moral rights under the UK Copyright Design and Patents Act 1988 to
34 * be recorded as the authors of this copyright work.
35 *
36 * Licensed under the Apache License, Version 2.0 (the "License"); you may not
37 * use this file except in compliance with the License.
38 *
39 * You may obtain a copy of the License at
40 *     http://www.apache.org/licenses/LICENSE-2.0
41 *
42 * Unless required by applicable law or agreed to in writing, software
43 * distributed under the License is distributed on an "AS IS" BASIS,
44 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
45 *
46 * See the License for the specific language governing permissions and
47 * limitations under the License.
48 */
49
50/** \file
51 */
52
53#ifndef ERRORS_H_
54#define ERRORS_H_
55
56#include <errno.h>
57
58/** error codes */
59/* Remember to add names to map in errors.c */
60typedef enum {
61	PGP_E_OK = 0x0000,	/* no error */
62	PGP_E_FAIL = 0x0001,	/* general error */
63	PGP_E_SYSTEM_ERROR = 0x0002,	/* system error, look at errno for
64					 * details */
65	PGP_E_UNIMPLEMENTED = 0x0003,	/* feature not yet implemented */
66
67	/* reader errors */
68	PGP_E_R = 0x1000,	/* general reader error */
69	PGP_E_R_READ_FAILED = PGP_E_R + 1,
70	PGP_E_R_EARLY_EOF = PGP_E_R + 2,
71	PGP_E_R_BAD_FORMAT = PGP_E_R + 3,	/* For example, malformed
72						 * armour */
73	PGP_E_R_UNSUPPORTED = PGP_E_R + 4,
74	PGP_E_R_UNCONSUMED_DATA = PGP_E_R + 5,
75
76	/* writer errors */
77	PGP_E_W = 0x2000,	/* general writer error */
78	PGP_E_W_WRITE_FAILED = PGP_E_W + 1,
79	PGP_E_W_WRITE_TOO_SHORT = PGP_E_W + 2,
80
81	/* parser errors */
82	PGP_E_P = 0x3000,	/* general parser error */
83	PGP_E_P_NOT_ENOUGH_DATA = PGP_E_P + 1,
84	PGP_E_P_UNKNOWN_TAG = PGP_E_P + 2,
85	PGP_E_P_PACKET_CONSUMED = PGP_E_P + 3,
86	PGP_E_P_MPI_FORMAT_ERROR = PGP_E_P + 4,
87	PGP_E_P_PACKET_NOT_CONSUMED = PGP_E_P + 5,
88	PGP_E_P_DECOMPRESSION_ERROR = PGP_E_P + 6,
89	PGP_E_P_NO_USERID = PGP_E_P + 7,
90
91	/* creator errors */
92	PGP_E_C = 0x4000,	/* general creator error */
93
94	/* validation errors */
95	PGP_E_V = 0x5000,	/* general validation error */
96	PGP_E_V_BAD_SIGNATURE = PGP_E_V + 1,
97	PGP_E_V_NO_SIGNATURE = PGP_E_V + 2,
98	PGP_E_V_UNKNOWN_SIGNER = PGP_E_V + 3,
99	PGP_E_V_BAD_HASH = PGP_E_V + 4,
100
101	/* Algorithm support errors */
102	PGP_E_ALG = 0x6000,	/* general algorithm error */
103	PGP_E_ALG_UNSUPPORTED_SYMMETRIC_ALG = PGP_E_ALG + 1,
104	PGP_E_ALG_UNSUPPORTED_PUBLIC_KEY_ALG = PGP_E_ALG + 2,
105	PGP_E_ALG_UNSUPPORTED_SIGNATURE_ALG = PGP_E_ALG + 3,
106	PGP_E_ALG_UNSUPPORTED_HASH_ALG = PGP_E_ALG + 4,
107	PGP_E_ALG_UNSUPPORTED_COMPRESS_ALG = PGP_E_ALG + 5,
108
109	/* Protocol errors */
110	PGP_E_PROTO = 0x7000,	/* general protocol error */
111	PGP_E_PROTO_BAD_SYMMETRIC_DECRYPT = PGP_E_PROTO + 2,
112	PGP_E_PROTO_UNKNOWN_SS = PGP_E_PROTO + 3,
113	PGP_E_PROTO_CRITICAL_SS_IGNORED = PGP_E_PROTO + 4,
114	PGP_E_PROTO_BAD_PUBLIC_KEY_VRSN = PGP_E_PROTO + 5,
115	PGP_E_PROTO_BAD_SIGNATURE_VRSN = PGP_E_PROTO + 6,
116	PGP_E_PROTO_BAD_ONE_PASS_SIG_VRSN = PGP_E_PROTO + 7,
117	PGP_E_PROTO_BAD_PKSK_VRSN = PGP_E_PROTO + 8,
118	PGP_E_PROTO_DECRYPTED_MSG_WRONG_LEN = PGP_E_PROTO + 9,
119	PGP_E_PROTO_BAD_SK_CHECKSUM = PGP_E_PROTO + 10
120} pgp_errcode_t;
121
122/** one entry in a linked list of errors */
123typedef struct pgp_error {
124	pgp_errcode_t		errcode;
125	int			sys_errno;	/* irrelevent unless errcode ==
126					 * PGP_E_SYSTEM_ERROR */
127	char			*comment;
128	const char		*file;
129	int			 line;
130	struct pgp_error	*next;
131} pgp_error_t;
132
133const char     *pgp_errcode(const pgp_errcode_t);
134
135void
136pgp_push_error(pgp_error_t **, pgp_errcode_t,
137		int,
138		const char *, int, const char *,...);
139void pgp_print_error(pgp_error_t *);
140void pgp_print_errors(pgp_error_t *);
141void pgp_free_errors(pgp_error_t *);
142int  pgp_has_error(pgp_error_t *, pgp_errcode_t);
143
144#define PGP_SYSTEM_ERROR_1(err,code,sys,fmt,arg)	do {		\
145	pgp_push_error(err,PGP_E_SYSTEM_ERROR,errno,__FILE__,__LINE__,sys);\
146	pgp_push_error(err,code,0,__FILE__,__LINE__,fmt,arg);		\
147} while(/*CONSTCOND*/0)
148
149#define PGP_MEMORY_ERROR(err) {						\
150	fprintf(stderr, "Memory error\n");				\
151}				/* \todo placeholder for better error
152				 * handling */
153#define PGP_ERROR(err,code,fmt)	do {					\
154	pgp_push_error(err,code,0,__FILE__,__LINE__,fmt);		\
155} while(/*CONSTCOND*/0)
156#define PGP_ERROR_1(err,code,fmt,arg)	do {				\
157	pgp_push_error(err,code,0,__FILE__,__LINE__,fmt,arg);		\
158} while(/*CONSTCOND*/0)
159#define PGP_ERROR_2(err,code,fmt,arg,arg2)	do {			\
160	pgp_push_error(err,code,0,__FILE__,__LINE__,fmt,arg,arg2);	\
161} while(/*CONSTCOND*/0)
162#define PGP_ERROR_3(err,code,fmt,arg,arg2,arg3)	do {			\
163	pgp_push_error(err,code,0,__FILE__,__LINE__,fmt,arg,arg2,arg3);	\
164} while(/*CONSTCOND*/0)
165#define PGP_ERROR_4(err,code,fmt,arg,arg2,arg3,arg4)	do {		\
166	pgp_push_error(err,code,0,__FILE__,__LINE__,fmt,arg,arg2,arg3,arg4); \
167} while(/*CONSTCOND*/0)
168
169#endif /* ERRORS_H_ */
170