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
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
|
/*
* Copyright (C) 2006-2008 Stig Venaas <venaas@uninett.no>
*
* Permission to use, copy, modify, and distribute this software for any
* purpose with or without fee is hereby granted, provided that the above
* copyright notice and this permission notice appear in all copies.
*/
#define DEBUG_LEVEL 3
#define CONFIG_MAIN "/etc/radsecproxy.conf"
/* MAX_REQUESTS must be 256 due to Radius' 8 bit ID field */
#define MAX_REQUESTS 256
#define REQUEST_RETRY_INTERVAL 5
#define REQUEST_RETRY_COUNT 2
#define MAX_CERT_DEPTH 5
#define STATUS_SERVER_PERIOD 25
#define IDLE_TIMEOUT 300
#define RAD_Access_Request 1
#define RAD_Access_Accept 2
#define RAD_Access_Reject 3
#define RAD_Accounting_Request 4
#define RAD_Accounting_Response 5
#define RAD_Access_Challenge 11
#define RAD_Status_Server 12
#define RAD_Status_Client 13
#define RAD_UDP 0
#define RAD_TLS 1
#define RAD_TCP 2
#define RAD_DTLS 3
#define RAD_Attr_User_Name 1
#define RAD_Attr_User_Password 2
#define RAD_Attr_Reply_Message 18
#define RAD_Attr_Vendor_Specific 26
#define RAD_Attr_Calling_Station_Id 31
#define RAD_Attr_Tunnel_Password 69
#define RAD_Attr_Message_Authenticator 80
#define RAD_VS_ATTR_MS_MPPE_Send_Key 16
#define RAD_VS_ATTR_MS_MPPE_Recv_Key 17
struct options {
char **listenudp;
char **listentcp;
char **listentls;
char **listendtls;
char **listenaccudp;
char *sourceudp;
char *sourcetcp;
char *sourcetls;
char *sourcedtls;
char *logdestination;
uint8_t loglevel;
uint8_t loopprevention;
};
/* requests that our client will send */
struct request {
unsigned char *buf;
uint8_t tries;
uint8_t received;
struct timeval expiry;
struct client *from;
char *origusername;
uint8_t origid; /* used by servwr */
char origauth[16]; /* used by servwr */
struct sockaddr_storage fromsa; /* used by udpservwr */
int fromudpsock; /* used by udpservwr */
};
/* replies that a server will send */
struct reply {
unsigned char *buf;
struct sockaddr_storage tosa; /* used by udpservwr */
int toudpsock; /* used by udpservwr */
};
struct queue {
struct list *entries;
pthread_mutex_t mutex;
pthread_cond_t cond;
};
struct clsrvconf {
char *name;
uint8_t type; /* RAD_UDP/RAD_TLS/RAD_TCP */
const struct protodefs *pdef;
char *host;
char *port;
char *secret;
char *tls;
char *matchcertattr;
regex_t *certcnregex;
regex_t *certuriregex;
char *confrewritein;
char *confrewriteout;
char *rewriteusername;
regex_t *rewriteusernameregex;
char *rewriteusernamereplacement;
char *dynamiclookupcommand;
uint8_t statusserver;
uint8_t retryinterval;
uint8_t retrycount;
uint8_t certnamecheck;
SSL_CTX *ssl_ctx;
struct rewrite *rewritein;
struct rewrite *rewriteout;
struct addrinfo *addrinfo;
uint8_t prefixlen;
struct list *clients;
struct server *servers;
};
struct client {
struct clsrvconf *conf;
int sock; /* for tcp/dtls */
SSL *ssl;
struct queue *replyq;
struct queue *rbios; /* for dtls */
struct sockaddr_storage addr; /* for dtls */
};
struct server {
struct clsrvconf *conf;
int sock;
SSL *ssl;
pthread_mutex_t lock;
pthread_t clientth;
uint8_t clientrdgone;
struct timeval lastconnecttry;
struct timeval lastreply;
uint8_t connectionok;
uint8_t lostrqs;
char *dynamiclookuparg;
int nextid;
struct timeval lastrcv;
struct request *requests;
uint8_t newrq;
pthread_mutex_t newrq_mutex;
pthread_cond_t newrq_cond;
struct queue *rbios; /* for dtls */
};
struct realm {
char *name;
char *message;
uint8_t accresp;
regex_t regex;
pthread_mutex_t subrealms_mutex;
struct list *subrealms;
struct list *srvconfs;
struct list *accsrvconfs;
};
struct tls {
char *name;
char *cacertfile;
char *cacertpath;
char *certfile;
char *certkeyfile;
char *certkeypwd;
uint8_t crlcheck;
SSL_CTX *tlsctx;
SSL_CTX *dtlsctx;
};
struct rewrite {
uint8_t *removeattrs;
uint32_t *removevendorattrs;
};
struct protodefs {
char *name;
char *secretdefault;
uint8_t socktype;
char *portdefault;
uint8_t retrycountdefault;
uint8_t retrycountmax;
uint8_t retryintervaldefault;
uint8_t retryintervalmax;
void *(*listener)(void*);
char **srcaddrport;
int (*connecter)(struct server *, struct timeval *, int, char *);
void *(*clientconnreader)(void*);
int (*clientradput)(struct server *, unsigned char *);
void (*addclient)(struct client *);
void (*addserverextra)(struct clsrvconf *);
void (*initextra)();
};
#define RADLEN(x) ntohs(((uint16_t *)(x))[1])
#define ATTRTYPE(x) ((x)[0])
#define ATTRLEN(x) ((x)[1])
#define ATTRVAL(x) ((x) + 2)
#define ATTRVALLEN(x) ((x)[1] - 2)
#define SOCKADDR_SIZE(addr) ((addr).ss_family == AF_INET ? \
sizeof(struct sockaddr_in) : \
sizeof(struct sockaddr_in6))
struct addrinfo *getsrcprotores(uint8_t type);
struct clsrvconf *find_clconf(uint8_t type, struct sockaddr *addr, struct list_node **cur);
struct clsrvconf *find_srvconf(uint8_t type, struct sockaddr *addr, struct list_node **cur);
struct clsrvconf *find_clconf_type(uint8_t type, struct list_node **cur);
struct client *addclient(struct clsrvconf *conf);
void removeclient(struct client *client);
void removeclientrqs(struct client *client);
struct queue *newqueue();
void removequeue(struct queue *q);
void freebios(struct queue *q);
int radsrv(struct request *rq);
X509 *verifytlscert(SSL *ssl);
int verifyconfcert(X509 *cert, struct clsrvconf *conf);
int replyh(struct server *server, unsigned char *buf);
int connecttcp(struct addrinfo *addrinfo, struct addrinfo *src);
int bindtoaddr(struct addrinfo *addrinfo, int family, int reuse, int v6only);
|
