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/*
* Copyright (C) 2006-2009 Stig Venaas <venaas@uninett.no>
* Copyright (C) 2010,2011 NORDUnet A/S
*
* 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.
*/
#include <sys/time.h>
#include <stdint.h>
#include <pthread.h>
#include <regex.h>
#include "list.h"
#include "tlv11.h"
#include "radmsg.h"
#include "gconfig.h"
#define DEBUG_LEVEL 2
#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 DUPLICATE_INTERVAL REQUEST_RETRY_INTERVAL * REQUEST_RETRY_COUNT
#define MAX_CERT_DEPTH 5
#define STATUS_SERVER_PERIOD 25
#define IDLE_TIMEOUT 300
/* 27262 is vendor DANTE Ltd. */
#define DEFAULT_TTL_ATTR "27262:1"
#define RAD_UDP 0
#define RAD_TLS 1
#define RAD_TCP 2
#define RAD_DTLS 3
#define RAD_PROTOCOUNT 4
enum rsp_fticks_reporting_type {
RSP_FTICKS_REPORTING_NONE = 0, /* Default. */
RSP_FTICKS_REPORTING_BASIC,
RSP_FTICKS_REPORTING_FULL
};
enum rsp_fticks_mac_type {
RSP_FTICKS_MAC_STATIC = 0,
RSP_FTICKS_MAC_ORIGINAL,
RSP_FTICKS_MAC_VENDOR_HASHED,
RSP_FTICKS_MAC_VENDOR_KEY_HASHED, /* Default. */
RSP_FTICKS_MAC_FULLY_HASHED,
RSP_FTICKS_MAC_FULLY_KEY_HASHED
};
struct options {
char *logdestination;
char *ftickssyslogfacility;
char *ttlattr;
uint32_t ttlattrtype[2];
uint8_t addttl;
uint8_t loglevel;
uint8_t loopprevention;
enum rsp_fticks_reporting_type fticks_reporting;
enum rsp_fticks_mac_type fticks_mac;
uint8_t *fticks_key;
};
struct commonprotoopts {
char **listenargs;
char *sourcearg;
};
struct request {
struct timeval created;
uint32_t refcount;
uint8_t *buf, *replybuf;
struct radmsg *msg;
struct client *from;
struct server *to;
char *origusername;
uint8_t rqid;
uint8_t rqauth[16];
uint8_t newid;
int udpsock; /* only for UDP */
uint16_t udpport; /* only for UDP */
};
/* requests that our client will send */
struct rqout {
pthread_mutex_t *lock;
struct request *rq;
uint8_t tries;
struct timeval expiry;
};
struct gqueue {
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 **hostsrc;
char *portsrc;
struct list *hostports;
char *secret;
char *tls;
char *matchcertattr;
regex_t *certcnregex;
regex_t *certuriregex;
char *confrewritein;
char *confrewriteout;
char *confrewriteusername;
struct modattr *rewriteusername;
char *dynamiclookupcommand;
uint8_t statusserver;
uint8_t retryinterval;
uint8_t retrycount;
uint8_t dupinterval;
uint8_t certnamecheck;
uint8_t addttl;
uint8_t loopprevention;
struct rewrite *rewritein;
struct rewrite *rewriteout;
pthread_mutex_t *lock; /* only used for updating clients so far */
struct tls *tlsconf;
struct list *clients;
struct server *servers;
char *fticks_viscountry;
char *fticks_visinst;
};
#include "tlscommon.h"
struct client {
struct clsrvconf *conf;
int sock;
SSL *ssl;
struct request *rqs[MAX_REQUESTS];
struct gqueue *replyq;
struct gqueue *rbios; /* for dtls */
struct sockaddr *addr;
time_t expiry; /* for udp */
};
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;
uint8_t dynstartup;
char *dynamiclookuparg;
int nextid;
struct timeval lastrcv;
struct rqout *requests;
uint8_t newrq;
pthread_mutex_t newrq_mutex;
pthread_cond_t newrq_cond;
struct gqueue *rbios; /* for dtls */
};
struct realm {
char *name;
char *message;
uint8_t accresp;
regex_t regex;
uint32_t refcount;
pthread_mutex_t mutex;
struct realm *parent;
struct list *subrealms;
struct list *srvconfs;
struct list *accsrvconfs;
};
struct modattr {
uint8_t t;
char *replacement;
regex_t *regex;
};
struct rewrite {
uint8_t *removeattrs;
uint32_t *removevendorattrs;
struct list *addattrs;
struct list *modattrs;
};
struct protodefs {
char *name;
char *secretdefault;
int socktype;
char *portdefault;
uint8_t retrycountdefault;
uint8_t retrycountmax;
uint8_t retryintervaldefault;
uint8_t retryintervalmax;
uint8_t duplicateintervaldefault;
void (*setprotoopts)(struct commonprotoopts *);
char **(*getlistenerargs)();
void *(*listener)(void*);
int (*connecter)(struct server *, struct timeval *, int, char *);
void *(*clientconnreader)(void*);
int (*clientradput)(struct server *, unsigned char *);
void (*addclient)(struct client *);
int (*addserverextra)(const struct clsrvconf *conf);
void (*setsrcres)();
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)
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, uint8_t lock);
void removelockedclient(struct client *client);
void removeclient(struct client *client);
struct gqueue *newqueue();
void freebios(struct gqueue *q);
struct request *newrequest();
void freerq(struct request *rq);
int radsrv(struct request *rq);
void replyh(struct server *server, unsigned char *buf);
struct addrinfo *resolve_hostport_addrinfo(uint8_t type, char *hostport);
uint8_t *radattr2ascii(struct tlv *attr);
/* Local Variables: */
/* c-file-style: "stroustrup" */
/* End: */
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