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
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
|
/*
* Copyright (C) the libgit2 contributors. All rights reserved.
*
* This file is part of libgit2, distributed under the GNU GPL v2 with
* a Linking Exception. For full terms see the included COPYING file.
*/
#ifndef INCLUDE_git_cert_h__
#define INCLUDE_git_cert_h__
#include "common.h"
#include "types.h"
/**
* @file git2/cert.h
* @brief Git certificate objects
* @defgroup git_cert Certificate objects
* @ingroup Git
* @{
*/
GIT_BEGIN_DECL
/**
* Type of host certificate structure that is passed to the check callback
*/
typedef enum git_cert_t {
/**
* No information about the certificate is available. This may
* happen when using curl.
*/
GIT_CERT_NONE,
/**
* The `data` argument to the callback will be a pointer to
* the DER-encoded data.
*/
GIT_CERT_X509,
/**
* The `data` argument to the callback will be a pointer to a
* `git_cert_hostkey` structure.
*/
GIT_CERT_HOSTKEY_LIBSSH2,
/**
* The `data` argument to the callback will be a pointer to a
* `git_strarray` with `name:content` strings containing
* information about the certificate. This is used when using
* curl.
*/
GIT_CERT_STRARRAY
} git_cert_t;
/**
* Parent type for `git_cert_hostkey` and `git_cert_x509`.
*/
struct git_cert {
/**
* Type of certificate. A `GIT_CERT_` value.
*/
git_cert_t cert_type;
};
/**
* Callback for the user's custom certificate checks.
*
* @param cert The host certificate
* @param valid Whether the libgit2 checks (OpenSSL or WinHTTP) think
* this certificate is valid
* @param host Hostname of the host libgit2 connected to
* @param payload Payload provided by the caller
* @return 0 to proceed with the connection, < 0 to fail the connection
* or > 0 to indicate that the callback refused to act and that
* the existing validity determination should be honored
*/
typedef int GIT_CALLBACK(git_transport_certificate_check_cb)(git_cert *cert, int valid, const char *host, void *payload);
/**
* Type of SSH host fingerprint
*/
typedef enum {
/** MD5 is available */
GIT_CERT_SSH_MD5 = (1 << 0),
/** SHA-1 is available */
GIT_CERT_SSH_SHA1 = (1 << 1),
/** SHA-256 is available */
GIT_CERT_SSH_SHA256 = (1 << 2),
/** Raw hostkey is available */
GIT_CERT_SSH_RAW = (1 << 3)
} git_cert_ssh_t;
typedef enum {
/** The raw key is of an unknown type. */
GIT_CERT_SSH_RAW_TYPE_UNKNOWN = 0,
/** The raw key is an RSA key. */
GIT_CERT_SSH_RAW_TYPE_RSA = 1,
/** The raw key is a DSS key. */
GIT_CERT_SSH_RAW_TYPE_DSS = 2,
/** The raw key is a ECDSA 256 key. */
GIT_CERT_SSH_RAW_TYPE_KEY_ECDSA_256 = 3,
/** The raw key is a ECDSA 384 key. */
GIT_CERT_SSH_RAW_TYPE_KEY_ECDSA_384 = 4,
/** The raw key is a ECDSA 521 key. */
GIT_CERT_SSH_RAW_TYPE_KEY_ECDSA_521 = 5,
/** The raw key is a ED25519 key. */
GIT_CERT_SSH_RAW_TYPE_KEY_ED25519 = 6
} git_cert_ssh_raw_type_t;
/**
* Hostkey information taken from libssh2
*/
typedef struct {
git_cert parent; /**< The parent cert */
/**
* A bitmask containing the available fields.
*/
git_cert_ssh_t type;
/**
* Hostkey hash. If `type` has `GIT_CERT_SSH_MD5` set, this will
* have the MD5 hash of the hostkey.
*/
unsigned char hash_md5[16];
/**
* Hostkey hash. If `type` has `GIT_CERT_SSH_SHA1` set, this will
* have the SHA-1 hash of the hostkey.
*/
unsigned char hash_sha1[20];
/**
* Hostkey hash. If `type` has `GIT_CERT_SSH_SHA256` set, this will
* have the SHA-256 hash of the hostkey.
*/
unsigned char hash_sha256[32];
/**
* Raw hostkey type. If `type` has `GIT_CERT_SSH_RAW` set, this will
* have the type of the raw hostkey.
*/
git_cert_ssh_raw_type_t raw_type;
/**
* Pointer to the raw hostkey. If `type` has `GIT_CERT_SSH_RAW` set,
* this will have the raw contents of the hostkey.
*/
const char *hostkey;
/**
* Raw hostkey length. If `type` has `GIT_CERT_SSH_RAW` set, this will
* have the length of the raw contents of the hostkey.
*/
size_t hostkey_len;
} git_cert_hostkey;
/**
* X.509 certificate information
*/
typedef struct {
git_cert parent; /**< The parent cert */
/**
* Pointer to the X.509 certificate data
*/
void *data;
/**
* Length of the memory block pointed to by `data`.
*/
size_t len;
} git_cert_x509;
/** @} */
GIT_END_DECL
#endif
|
