#ifndef RADIUSD_H #define RADIUSD_H /* * radiusd.h Structures, prototypes and global variables * for the FreeRADIUS server. * * Version: $Id: radiusd.h,v 1.1 2010/08/14 04:13:52 faust Exp $ * * This program is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License as published by * the Free Software Foundation; either version 2 of the License, or * (at your option) any later version. * * This program is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * GNU General Public License for more details. * * You should have received a copy of the GNU General Public License * along with this program; if not, write to the Free Software * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA * * Copyright 1999,2000,2002,2003,2004,2005,2006,2007,2008 The FreeRADIUS server project * */ //#include //RCSIDH(radiusd_h, "$Id: radiusd.h,v 1.1 2010/08/14 04:13:52 faust Exp $") #include "libradius.h" //#include //#include "conf.h" #include "conffile.h" #include "event.h" typedef struct auth_req REQUEST; #ifdef HAVE_PTHREAD_H #include #endif #ifndef NDEBUG #define REQUEST_MAGIC (0xdeadbeef) #endif /* * New defines for minimizing the size of the server, to strip * out functionality. In order to ensure that people don't have * to re-run "configure", after "cvs update", we play some * special games with the defines. i.e. any top-level "configure" * option should set both WITH_FOO and WITHOUT_FOO. After a few * weeks, the WITHOUT_FOO can be deleted from the configure script. */ #ifndef WITHOUT_PROXY #define WITH_PROXY (1) #endif #ifndef WITHOUT_DETAIL #define WITH_DETAIL (1) #endif #ifndef WITHOUT_SESSION_MGMT #define WITH_SESSION_MGMT (1) #endif #ifndef WITHOUT_UNLANG #define WITH_UNLANG (1) #endif #ifndef WITHOUT_ACCOUNTING #define WITH_ACCOUNTING (1) #else #ifdef WITH_SESSION_MGMT #error WITH_SESSION_MGMT is defined, but WITH_ACCOUNTING is not. Session management requires accounting. #endif #ifdef WITH_DETAIL #error WITH_DETAIL is defined, but WITH_ACCOUNTING is not. Detail file reading requires accounting. #endif #endif #ifndef WITHOUT_DYNAMIC_CLIENTS #define WITH_DYNAMIC_CLIENTS (1) #endif #ifndef WITHOUT_STATS #define WITH_STATS #endif #ifndef WITHOUT_COMMAND_SOCKET #ifdef HAVE_SYS_UN_H #define WITH_COMMAND_SOCKET (1) #endif #endif #ifndef WITHOUT_COA #define WITH_COA (1) #ifndef WITH_PROXY #error WITH_COA requires WITH_PROXY #endif #endif #include "stats.h" /*#include "realms.h"*/ /* * See util.c */ typedef struct request_data_t request_data_t; typedef struct radclient { fr_ipaddr_t ipaddr; int prefix; char *longname; char *secret; char *shortname; int message_authenticator; char *nastype; char *login; char *password; char *server; int number; const CONF_SECTION *cs; #ifdef WITH_STATS fr_stats_t *auth; #ifdef WITH_ACCOUNTING fr_stats_t *acct; #endif #endif #ifdef WITH_DYNAMIC_CLIENTS int lifetime; int dynamic; time_t created; time_t last_new_client; char *client_server; #endif } RADCLIENT; /* * Types of listeners. * * Ordered by priority! */ typedef enum RAD_LISTEN_TYPE { RAD_LISTEN_NONE = 0, #ifdef WITH_PROXY RAD_LISTEN_PROXY, #endif RAD_LISTEN_AUTH, #ifdef WITH_ACCOUNTING RAD_LISTEN_ACCT, #endif #ifdef WITH_DETAIL RAD_LISTEN_DETAIL, #endif #ifdef WITH_VMPS RAD_LISTEN_VQP, #endif #ifdef WITH_DHCP RAD_LISTEN_DHCP, #endif #ifdef WITH_COMMAND_SOCKET RAD_LISTEN_COMMAND, #endif #ifdef WITH_COA RAD_LISTEN_COA, #endif RAD_LISTEN_MAX } RAD_LISTEN_TYPE; /* * For listening on multiple IP's and ports. */ typedef struct rad_listen_t rad_listen_t; typedef void (*radlog_func_t)(int, int, REQUEST *, const char *, ...); #define REQUEST_DATA_REGEX (0xadbeef00) #define REQUEST_MAX_REGEX (8) struct auth_req { #ifndef NDEBUG uint32_t magic; /* for debugging only */ #endif RADIUS_PACKET *packet; #ifdef WITH_PROXY RADIUS_PACKET *proxy; #endif RADIUS_PACKET *reply; #ifdef WITH_PROXY RADIUS_PACKET *proxy_reply; #endif VALUE_PAIR *config_items; VALUE_PAIR *username; VALUE_PAIR *password; struct main_config_t *root; request_data_t *data; RADCLIENT *client; #ifdef HAVE_PTHREAD_H pthread_t child_pid; #endif time_t timestamp; int number; /* internal server number */ rad_listen_t *listener; #ifdef WITH_PROXY rad_listen_t *proxy_listener; #endif int simul_max; /* see modcall.c && xlat.c */ #ifdef WITH_SESSION_MGMT int simul_count; int simul_mpp; /* WEIRD: 1 is false, 2 is true */ #endif int options; /* miscellanous options */ const char *module; /* for debugging unresponsive children */ const char *component; /* ditto */ struct timeval received; struct timeval when; /* to wake up */ int delay; int master_state; int child_state; RAD_LISTEN_TYPE priority; fr_event_t *ev; struct timeval next_when; fr_event_callback_t next_callback; int in_request_hash; const char *server; REQUEST *parent; radlog_func_t radlog; /* logging function, if set */ #ifdef WITH_COA REQUEST *coa; int num_coa_requests; #endif }; /* REQUEST typedef */ #define RAD_REQUEST_OPTION_NONE (0) #define RAD_REQUEST_OPTION_DEBUG (1) #define RAD_REQUEST_OPTION_DEBUG2 (2) #define RAD_REQUEST_OPTION_DEBUG3 (3) #define RAD_REQUEST_OPTION_DEBUG4 (4) #define REQUEST_ACTIVE (1) #define REQUEST_STOP_PROCESSING (2) #define REQUEST_COUNTED (3) #define REQUEST_QUEUED (1) #define REQUEST_RUNNING (2) #define REQUEST_PROXIED (3) #define REQUEST_REJECT_DELAY (4) #define REQUEST_CLEANUP_DELAY (5) #define REQUEST_DONE (6) /* * Function handler for requests. */ typedef int (*RAD_REQUEST_FUNP)(REQUEST *); typedef struct radclient_list RADCLIENT_LIST; typedef struct pair_list { const char *name; VALUE_PAIR *check; VALUE_PAIR *reply; int lineno; int order; struct pair_list *next; struct pair_list *lastdefault; } PAIR_LIST; typedef int (*rad_listen_recv_t)(rad_listen_t *, RAD_REQUEST_FUNP *, REQUEST **); typedef int (*rad_listen_send_t)(rad_listen_t *, REQUEST *); typedef int (*rad_listen_print_t)(rad_listen_t *, char *, size_t); typedef int (*rad_listen_encode_t)(rad_listen_t *, REQUEST *); typedef int (*rad_listen_decode_t)(rad_listen_t *, REQUEST *); struct rad_listen_t { struct rad_listen_t *next; /* should be rbtree stuff */ /* * For normal sockets. */ RAD_LISTEN_TYPE type; int fd; const char *server; int status; rad_listen_recv_t recv; rad_listen_send_t send; rad_listen_encode_t encode; rad_listen_decode_t decode; rad_listen_print_t print; void *data; #ifdef WITH_STATS fr_stats_t stats; #endif }; #define RAD_LISTEN_STATUS_INIT (0) #define RAD_LISTEN_STATUS_KNOWN (1) #define RAD_LISTEN_STATUS_CLOSED (2) #define RAD_LISTEN_STATUS_FINISH (3) typedef enum radlog_dest_t { RADLOG_STDOUT = 0, RADLOG_FILES, RADLOG_SYSLOG, RADLOG_STDERR, RADLOG_NULL, RADLOG_NUM_DEST } radlog_dest_t; typedef struct main_config_t { struct main_config *next; int refcount; fr_ipaddr_t myip; /* from the command-line only */ int port; /* from the command-line only */ int log_auth; int log_auth_badpass; int log_auth_goodpass; int allow_core_dumps; int debug_level; int proxy_requests; int reject_delay; int status_server; int max_request_time; int cleanup_delay; int max_requests; #ifdef DELETE_BLOCKED_REQUESTS int kill_unresponsive_children; #endif char *log_file; char *checkrad; const char *pid_file; rad_listen_t *listen; int syslog_facility; int radlog_fd; radlog_dest_t radlog_dest; CONF_SECTION *config; const char *name; const char *auth_badpass_msg; const char *auth_goodpass_msg; } MAIN_CONFIG_T; #define DEBUG if(debug_flag)log_debug #define DEBUG2 if (debug_flag > 1)log_debug #define DEBUG3 if (debug_flag > 2)log_debug #define DEBUG4 if (debug_flag > 3)log_debug #if __GNUC__ >= 3 #define RDEBUG(fmt, ...) if(request && request->radlog) request->radlog(L_DBG, 1, request, fmt, ## __VA_ARGS__) #define RDEBUG2(fmt, ...) if(request && request->radlog) request->radlog(L_DBG, 2, request, fmt, ## __VA_ARGS__) #define RDEBUG3(fmt, ...) if(request && request->radlog) request->radlog(L_DBG, 3, request, fmt, ## __VA_ARGS__) #define RDEBUG4(fmt, ...) if(request && request->radlog) request->radlog(L_DBG, 4, request, fmt, ## __VA_ARGS__) #else #define RDEBUG DEBUG #define RDEBUG2 DEBUG2 #define RDEBUG3 DEBUG3 #define RDEBUG4 DEBUG4 #endif #define SECONDS_PER_DAY 86400 #define MAX_REQUEST_TIME 30 #define CLEANUP_DELAY 5 #define MAX_REQUESTS 256 #define RETRY_DELAY 5 #define RETRY_COUNT 3 #define DEAD_TIME 120 #define L_DBG 1 #define L_AUTH 2 #define L_INFO 3 #define L_ERR 4 #define L_PROXY 5 #define L_ACCT 6 #define L_CONS 128 #ifndef FALSE #define FALSE 0 #endif #ifndef TRUE /* * This definition of true as NOT false is definitive. :) Making * it '1' can cause problems on stupid platforms. See articles * on C portability for more information. */ #define TRUE (!FALSE) #endif /* for paircompare_register */ typedef int (*RAD_COMPARE_FUNC)(void *instance, REQUEST *,VALUE_PAIR *, VALUE_PAIR *, VALUE_PAIR *, VALUE_PAIR **); typedef enum request_fail_t { REQUEST_FAIL_UNKNOWN = 0, REQUEST_FAIL_NO_THREADS, /* no threads to handle it */ REQUEST_FAIL_DECODE, /* rad_decode didn't like it */ REQUEST_FAIL_PROXY, /* call to proxy modules failed */ REQUEST_FAIL_PROXY_SEND, /* proxy_send didn't like it */ REQUEST_FAIL_NO_RESPONSE, /* we weren't told to respond, so we reject */ REQUEST_FAIL_HOME_SERVER, /* the home server didn't respond */ REQUEST_FAIL_HOME_SERVER2, /* another case of the above */ REQUEST_FAIL_HOME_SERVER3, /* another case of the above */ REQUEST_FAIL_NORMAL_REJECT, /* authentication failure */ REQUEST_FAIL_SERVER_TIMEOUT /* the server took too long to process the request */ } request_fail_t; /* * Global variables. * * We really shouldn't have this many. */ extern const char *progname; extern int debug_flag; extern const char *radacct_dir; extern const char *radlog_dir; extern const char *radlib_dir; extern const char *radius_dir; extern const char *radius_libdir; extern uint32_t expiration_seconds; extern int log_stripped_names; extern int log_auth_detail; extern const char *radiusd_version; void radius_signal_self(int flag); #define RADIUS_SIGNAL_SELF_NONE (0) #define RADIUS_SIGNAL_SELF_HUP (1 << 0) #define RADIUS_SIGNAL_SELF_TERM (1 << 1) #define RADIUS_SIGNAL_SELF_EXIT (1 << 2) #define RADIUS_SIGNAL_SELF_DETAIL (1 << 3) #define RADIUS_SIGNAL_SELF_NEW_FD (1 << 4) #define RADIUS_SIGNAL_SELF_MAX (1 << 5) /* * Function prototypes. */ /* acct.c */ int rad_accounting(REQUEST *); /* session.c */ int rad_check_ts(uint32_t nasaddr, unsigned int port, const char *user, const char *sessionid); int session_zap(REQUEST *request, uint32_t nasaddr, unsigned int port, const char *user, const char *sessionid, uint32_t cliaddr, char proto,int session_time); /* radiusd.c */ #undef debug_pair void debug_pair(VALUE_PAIR *); void debug_pair_list(VALUE_PAIR *); int log_err (char *); /* util.c */ void (*reset_signal(int signo, void (*func)(int)))(int); void request_free(REQUEST **request); int rad_mkdir(char *directory, int mode); int rad_checkfilename(const char *filename); void *rad_malloc(size_t size); /* calls exit(1) on error! */ REQUEST *request_alloc(void); REQUEST *request_alloc_fake(REQUEST *oldreq); REQUEST *request_alloc_coa(REQUEST *request); int request_data_add(REQUEST *request, void *unique_ptr, int unique_int, void *opaque, void (*free_opaque)(void *)); void *request_data_get(REQUEST *request, void *unique_ptr, int unique_int); void *request_data_reference(REQUEST *request, void *unique_ptr, int unique_int); int rad_copy_string(char *dst, const char *src); int rad_copy_variable(char *dst, const char *from); /* client.c */ RADCLIENT_LIST *clients_init(void); void clients_free(RADCLIENT_LIST *clients); RADCLIENT_LIST *clients_parse_section(CONF_SECTION *section); void client_free(RADCLIENT *client); int client_add(RADCLIENT_LIST *clients, RADCLIENT *client); #ifdef WITH_DYNAMIC_CLIENTS void client_delete(RADCLIENT_LIST *clients, RADCLIENT *client); RADCLIENT *client_create(RADCLIENT_LIST *clients, REQUEST *request); #endif RADCLIENT *client_find(const RADCLIENT_LIST *clients, const fr_ipaddr_t *ipaddr); RADCLIENT *client_findbynumber(const RADCLIENT_LIST *clients, int number); RADCLIENT *client_find_old(const fr_ipaddr_t *ipaddr); int client_validate(RADCLIENT_LIST *clients, RADCLIENT *master, RADCLIENT *c); RADCLIENT *client_read(const char *filename, int in_server, int flag); /* files.c */ int pairlist_read(const char *file, PAIR_LIST **list, int complain); void pairlist_free(PAIR_LIST **); /* version.c */ void version(void); /* log.c */ int vradlog(int, const char *, va_list ap); int radlog(int, const char *, ...) #ifdef __GNUC__ __attribute__ ((format (printf, 2, 3))) #endif ; int log_debug(const char *, ...) #ifdef __GNUC__ __attribute__ ((format (printf, 1, 2))) #endif ; void vp_listdebug(VALUE_PAIR *vp); void radlog_request(int lvl, int priority, REQUEST *request, const char *msg, ...) #ifdef __GNUC__ __attribute__ ((format (printf, 4, 5))) #endif ; /* auth.c */ char *auth_name(char *buf, size_t buflen, REQUEST *request, int do_cli); int rad_authenticate (REQUEST *); int rad_postauth(REQUEST *); /* exec.c */ int radius_exec_program(const char *, REQUEST *, int, char *user_msg, int msg_len, VALUE_PAIR *input_pairs, VALUE_PAIR **output_pairs, int shell_escape); /* timestr.c */ int timestr_match(char *, time_t); /* valuepair.c */ int paircompare_register(int attr, int otherattr, RAD_COMPARE_FUNC func, void *instance); void paircompare_unregister(int attr, RAD_COMPARE_FUNC func); int paircompare(REQUEST *req, VALUE_PAIR *request, VALUE_PAIR *check, VALUE_PAIR **reply); void pairxlatmove(REQUEST *, VALUE_PAIR **to, VALUE_PAIR **from); int radius_compare_vps(REQUEST *request, VALUE_PAIR *check, VALUE_PAIR *vp); int radius_callback_compare(REQUEST *req, VALUE_PAIR *request, VALUE_PAIR *check, VALUE_PAIR *check_pairs, VALUE_PAIR **reply_pairs); int radius_find_compare(int attribute); VALUE_PAIR *radius_paircreate(REQUEST *request, VALUE_PAIR **vps, int attribute, int type); VALUE_PAIR *radius_pairmake(REQUEST *request, VALUE_PAIR **vps, const char *attribute, const char *value, int _operator); /* xlat.c */ typedef size_t (*RADIUS_ESCAPE_STRING)(char *out, size_t outlen, const char *in); int radius_xlat(char * out, int outlen, const char *fmt, REQUEST * request, RADIUS_ESCAPE_STRING func); typedef size_t (*RAD_XLAT_FUNC)(void *instance, REQUEST *, char *, char *, size_t, RADIUS_ESCAPE_STRING func); int xlat_register(const char *module, RAD_XLAT_FUNC func, void *instance); void xlat_unregister(const char *module, RAD_XLAT_FUNC func); void xlat_free(void); /* threads.c */ extern int thread_pool_init(CONF_SECTION *cs, int *spawn_flag); extern int thread_pool_addrequest(REQUEST *, RAD_REQUEST_FUNP); extern pid_t rad_fork(void); extern pid_t rad_waitpid(pid_t pid, int *status); extern int total_active_threads(void); extern void thread_pool_lock(void); extern void thread_pool_unlock(void); extern void thread_pool_queue_stats(int *array); #ifndef HAVE_PTHREAD_H #define rad_fork(n) fork() #define rad_waitpid(a,b) waitpid(a,b, 0) #endif /* mainconfig.c */ /* Define a global config structure */ extern struct main_config_t mainconfig; int read_mainconfig(int reload); int free_mainconfig(void); void hup_mainconfig(void); void fr_suid_down(void); void fr_suid_up(void); void fr_suid_down_permanent(void); /* listen.c */ void listen_free(rad_listen_t **head); int listen_init(CONF_SECTION *cs, rad_listen_t **head); rad_listen_t *proxy_new_listener(fr_ipaddr_t *ipaddr, int exists); RADCLIENT *client_listener_find(const rad_listen_t *listener, const fr_ipaddr_t *ipaddr, int src_port); #ifdef WITH_STATS RADCLIENT_LIST *listener_find_client_list(const fr_ipaddr_t *ipaddr, int port); rad_listen_t *listener_find_byipaddr(const fr_ipaddr_t *ipaddr, int port); #endif /* event.c */ int radius_event_init(CONF_SECTION *cs, int spawn_flag); void radius_event_free(void); int radius_event_process(void); void radius_handle_request(REQUEST *request, RAD_REQUEST_FUNP fun); int received_request(rad_listen_t *listener, RADIUS_PACKET *packet, REQUEST **prequest, RADCLIENT *client); REQUEST *received_proxy_response(RADIUS_PACKET *packet); void event_new_fd(rad_listen_t *listener); /* evaluate.c */ int radius_evaluate_condition(REQUEST *request, int modreturn, int depth, const char **ptr, int evaluate_it, int *presult); int radius_update_attrlist(REQUEST *request, CONF_SECTION *cs, VALUE_PAIR *input_vps, const char *name); void radius_pairmove(REQUEST *request, VALUE_PAIR **to, VALUE_PAIR *from); #endif /*RADIUSD_H*/