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
|
/** @file libradsec-impl.h
@brief Libraray internal header file for libradsec. */
/* See LICENSE for licensing information. */
#ifndef _RADSEC_RADSEC_IMPL_H_
#define _RADSEC_RADSEC_IMPL_H_ 1
#include <event2/util.h>
#include <confuse.h>
#if defined(RS_ENABLE_TLS)
#include <openssl/ssl.h>
#endif
/* Constants. */
#define RS_HEADER_LEN 4
/* Data types. */
enum rs_cred_type {
RS_CRED_NONE = 0,
/* TLS pre-shared keys, RFC 4279. */
RS_CRED_TLS_PSK,
/* RS_CRED_TLS_DH_PSK, */
/* RS_CRED_TLS_RSA_PSK, */
};
typedef unsigned int rs_cred_type_t;
enum rs_key_encoding {
RS_KEY_ENCODING_UTF8 = 1,
RS_KEY_ENCODING_ASCII_HEX = 2,
};
typedef unsigned int rs_key_encoding_t;
#if defined (__cplusplus)
extern "C" {
#endif
struct rs_credentials {
enum rs_cred_type type;
char *identity;
char *secret;
enum rs_key_encoding secret_encoding;
unsigned int secret_len;
};
struct rs_error {
int code;
char buf[1024];
};
/** Configuration object for a connection. */
struct rs_peer {
struct rs_connection *conn;
struct rs_realm *realm;
char *hostname;
char *service;
char *secret; /* RADIUS secret. */
struct evutil_addrinfo *addr_cache;
struct rs_peer *next;
};
/** Configuration object for a RADIUS realm. */
struct rs_realm {
char *name;
enum rs_conn_type type;
int timeout;
int retries;
char *cacertfile;
char *cacertpath;
char *certfile;
char *certkeyfile;
struct rs_credentials *transport_cred;
struct rs_peer *peers;
struct rs_realm *next;
};
/** Top configuration object. */
struct rs_config {
struct rs_realm *realms;
cfg_t *cfg;
};
struct rs_context {
struct rs_config *config;
struct rs_alloc_scheme alloc_scheme;
struct rs_error *err;
};
struct rs_connection {
struct rs_context *ctx;
struct rs_realm *realm; /* Owned by ctx. */
struct event_base *evb; /* Event base. */
struct event *tev; /* Timeout event. */
struct rs_conn_callbacks callbacks;
void *user_data;
struct rs_peer *peers;
struct rs_peer *active_peer;
struct rs_error *err;
struct timeval timeout;
char is_connecting; /* FIXME: replace with a single state member */
char is_connected; /* FIXME: replace with a single state member */
int fd; /* Socket. */
int tryagain; /* For server failover. */
int nextid; /* Next RADIUS packet identifier. */
/* TCP transport specifics. */
struct bufferevent *bev; /* Buffer event. */
/* UDP transport specifics. */
struct event *wev; /* Write event (for UDP). */
struct event *rev; /* Read event (for UDP). */
struct rs_packet *out_queue; /* Queue for outgoing UDP packets. */
#if defined(RS_ENABLE_TLS)
/* TLS specifics. */
SSL_CTX *tls_ctx;
SSL *tls_ssl;
#endif
};
enum rs_packet_flags {
RS_PACKET_HEADER_READ,
RS_PACKET_RECEIVED,
RS_PACKET_SENT,
};
struct radius_packet;
struct rs_packet {
struct rs_connection *conn;
unsigned int flags;
uint8_t hdr[RS_HEADER_LEN];
struct radius_packet *rpkt; /* FreeRADIUS object. */
struct rs_packet *next; /* Used for UDP output queue. */
};
#if defined (__cplusplus)
}
#endif
/* Convenience macros. */
#define rs_calloc(h, nmemb, size) \
(h->alloc_scheme.calloc ? h->alloc_scheme.calloc : calloc)(nmemb, size)
#define rs_malloc(h, size) \
(h->alloc_scheme.malloc ? h->alloc_scheme.malloc : malloc)(size)
#define rs_free(h, ptr) \
(h->alloc_scheme.free ? h->alloc_scheme.free : free)(ptr)
#define rs_realloc(h, realloc, ptr, size) \
(h->alloc_scheme.realloc ? h->alloc_scheme.realloc : realloc)(ptr, size)
#define min(a, b) ((a) < (b) ? (a) : (b))
#define max(a, b) ((a) > (b) ? (a) : (b))
#endif /* _RADSEC_RADSEC_IMPL_H_ */
/* Local Variables: */
/* c-file-style: "stroustrup" */
/* End: */
|
