summaryrefslogtreecommitdiff
path: root/radsecproxy.h
blob: fb6a5643bdc66d1fe0e72dcfd979a10d135c3111 (plain)
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
/*
 * Copyright (C) 2006, 2007 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 DEFAULT_TLS_SECRET "mysecret"
#define DEFAULT_UDP_PORT "1812"
#define DEFAULT_TLS_PORT "2083"
#define REQUEST_EXPIRY 20
#define REQUEST_RETRIES 3
#define MAX_CERT_DEPTH 5
#define STATUS_SERVER_PERIOD 25
#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_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_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

#define CONF_STR 1
#define CONF_CBK 2
#define CONF_MSTR 3

struct options {
    char *listenudp;
    char *listentcp;
    char *listenaccudp;
    char *logdestination;
    uint8_t loglevel;
};

/* 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 */
};

/* replies that a server will send */
struct reply {
    unsigned char *buf;
    struct sockaddr_storage tosa; /* used by udpservwr */
};

struct replyq {
    struct list *replies;
    pthread_mutex_t mutex;
    pthread_cond_t cond;
};

struct clsrvconf {
    char *name;
    char type; /* U for UDP, T for TLS */
    char *host;
    char *port;
    char *secret;
    regex_t *certuriregex;
    regex_t *rewriteattrregex;
    char *rewriteattrreplacement;
    uint8_t statusserver;
    SSL_CTX *ssl_ctx;
    struct addrinfo *addrinfo;
    uint8_t prefixlen;
    struct list *clients;
    struct server *servers;
};

struct client {
    struct clsrvconf *conf;
    SSL *ssl;
    struct replyq *replyq;
    struct client *next;
};

struct server {
    struct clsrvconf *conf;
    int sock;
    SSL *ssl;
    pthread_mutex_t lock;
    pthread_t clientth;
    struct timeval lastconnecttry;
    uint8_t connectionok;
    uint8_t loststatsrv;
    int nextid;
    struct request *requests;
    uint8_t newrq;
    pthread_mutex_t newrq_mutex;
    pthread_cond_t newrq_cond;
};

struct realm {
    char *name;
    char *message;
    regex_t regex;
    struct list *srvconfs;
};

struct tls {
    char *name;
    SSL_CTX *ctx;
    int count;
};

#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))

char *stringcopy(char *s, int len);
char *addr2string(struct sockaddr *addr, socklen_t len);
void printfchars(char *prefixfmt, char *prefix, char *charfmt, char *chars, int len);
int bindport(int type, char *port);
int connectport(int type, char *host, char *port);