From: David Parrish Date: Mon, 24 May 2004 04:24:06 +0000 (+0000) Subject: Add log_backtrace X-Git-Tag: 2.2.1-2fdn3.1~19^2^2~1^2~461 X-Git-Url: http://git.sameswireless.fr/l2tpns.git/commitdiff_plain/11627344e7bbceb18bb9c06b3707a6e04610265e?ds=sidebyside Add log_backtrace Use multiple radius sockets to allow more concurrent authentication requests Fix minimum length of IP packets Add support for reading more than one packet per fd in each processing loop Add variable cleanup_interval for changing cleanup interval Bump version to 1.2.0 --- diff --git a/l2tpns.h b/l2tpns.h index 3d85ce6..8cdc2fc 100644 --- a/l2tpns.h +++ b/l2tpns.h @@ -1,16 +1,19 @@ // L2TPNS Global Stuff -// $Id: l2tpns.h,v 1.4 2004-04-16 02:33:32 fred_nerk Exp $ +// $Id: l2tpns.h,v 1.5 2004-05-24 04:24:06 fred_nerk Exp $ #include #include -#include "config.h" +#include -#define VERSION "1.1.2" +#define VERSION "1.2.0" // Limits #define MAXTUNNEL 500 // could be up to 65535 #define MAXSESSION 50000 // could be up to 65535 -#define MAXRADIUS 255 +#define RADIUS_SHIFT 5 +#define RADIUS_MASK ((unsigned short)(((unsigned short)~0) >> (16 - RADIUS_SHIFT))) +#define MAXRADIUS ((2 << (RADIUS_SHIFT - 1)) * 255) + #define MAXCONTROL 1000 // max length control message we ever send... #define MAXETHER (1500+18) // max packet we try sending to tap #define MAXTEL 96 // telephone number @@ -30,11 +33,11 @@ #define TAPDEVICE "/dev/net/tun" #define UDP 17 #define HOMEDIR "/home/l2tpns/" // Base dir for data -#define STATEFILE "/tmp/l2tpns.dump" // State dump file -#define NOSTATEFILE "/tmp/l2tpns.no_state_reload" // If exists, state will not be reloaded -#define CONFIGFILE ETCDIR "/l2tpns.cfg" // Configuration file -#define CLIUSERS ETCDIR "/l2tpns.users" // CLI Users file -#define IPPOOLFILE ETCDIR "/l2tpns.ip_pool" // Address pool configuration +#define STATEFILE "/tmp/l2tpns.dump" // State dump file +#define NOSTATEFILE "/tmp/l2tpns.no_state_reload" // If exists, state will not be reloaded +#define CONFIGFILE ETCDIR "/l2tpns.cfg" // Configuration file +#define CLIUSERS ETCDIR "/l2tpns.users" // CLI Users file +#define IPPOOLFILE ETCDIR "/l2tpns.ip_pool" // Address pool configuration #ifndef LIBDIR #define LIBDIR "/usr/lib/l2tpns" #endif @@ -52,6 +55,7 @@ #define PPPCCP 0x80FD #define PPPIP 0x0021 #define PPPMP 0x003D +#define MIN_IP_SIZE 0x20 enum { ConfigReq = 1, @@ -99,10 +103,8 @@ controlt; typedef struct stbft { - struct stbft *next; char handle[10]; char in_use; - int mark; } tbft; @@ -128,7 +130,7 @@ typedef struct sessions time_t last_packet; // Last packet from the user (used for idle timeouts) ipt dns1, dns2; // DNS servers routet route[MAXROUTE]; // static routes - u8 radius; // which radius session is being used (0 for not waiting on authentication) + u16 radius; // which radius session is being used (0 for not waiting on authentication) u8 flags; // various bit flags u8 snoop; // are we snooping this session? u8 throttle; // is this session throttled? @@ -172,26 +174,27 @@ typedef struct tunnels tunnelt; // 180 bytes per radius session -typedef struct radiuss // outstanding RADIUS requests +typedef struct radiuss // outstanding RADIUS requests { - sessionidt session; // which session this applies to - hasht auth; // request authenticator - clockt retry; // when to try next - char calling[MAXTEL]; // calling number - char pass[129]; // password - u8 id; // ID for PPP response - u8 try; // which try we are on - u8 state; // state of radius requests - u8 chap; // set if CHAP used (is CHAP identifier) + sessionidt session; // which session this applies to + hasht auth; // request authenticator + clockt retry; // when to try next + char calling[MAXTEL]; // calling number + char pass[129]; // password + u8 id; // ID for PPP response + u8 try; // which try we are on + u8 state; // state of radius requests + u8 chap; // set if CHAP used (is CHAP identifier) } radiust; typedef struct { - ipt address; - char assigned; // 1 if assigned, 0 if free - clockt last; // last used - char user[129]; // user (try to have ip addresses persistent) + ipt address; + char assigned; // 1 if assigned, 0 if free + sessionidt session; + clockt last; // last used + char user[129]; // user (try to have ip addresses persistent) } ippoolt; @@ -325,6 +328,8 @@ struct configt char config_file[128]; int reload_config; // flag to re-read config (set by cli) + int cleanup_interval; // interval between regular cleanups (in seconds) + int multi_read_count; // amount of packets to read per fd in processing loop char tapdevice[10]; // tap device name char log_filename[128]; @@ -334,6 +339,7 @@ struct configt int radius_accounting; ipt radiusserver[MAXRADSERVER]; // radius servers u8 numradiusservers; // radius server count + short num_radfds; // Number of radius filehandles allocated ipt default_dns1, default_dns2; @@ -350,6 +356,8 @@ struct configt int dump_speed; char plugins[64][MAXPLUGINS]; char old_plugins[64][MAXPLUGINS]; + + int next_tbf; // Next HTB id available to use }; struct config_descriptt @@ -380,11 +388,11 @@ void dumplcp(char *p, int l); // radius.c void initrad(void); -void radiussend(u8 r, u8 state); -void processrad(u8 *buf, int len); -void radiusretry(u8 r); -u8 radiusnew(sessionidt s); -void radiusclear(u8 r, sessionidt s); +void radiussend(u16 r, u8 state); +void processrad(u8 *buf, int len, char socket_index); +void radiusretry(u16 r); +u16 radiusnew(sessionidt s); +void radiusclear(u16 r, sessionidt s); // throttle.c int throttle_session(sessionidt s, int throttle); @@ -437,7 +445,7 @@ void mainloop(void); #ifndef log_hex #define log_hex(a,b,c,d) do{if (a <= config->debug) _log_hex(a,0,0,0,b,c,d);}while (0) #endif -void _log(int level, ipt address, sessionidt s, tunnelidt t, const char *format, ...); +void _log(int level, ipt address, sessionidt s, tunnelidt t, const char *format, ...) __attribute__((format (printf, 5, 6))); void _log_hex(int level, ipt address, sessionidt s, tunnelidt t, const char *title, const char *data, int maxsize); void build_chap_response(char *challenge, u8 id, u16 challenge_length, char **challenge_response); int sessionsetup(tunnelidt t, sessionidt s, u8 routes); @@ -460,3 +468,19 @@ void host_unreachable(ipt destination, u16 id, ipt source, char *packet, int pac extern tunnelt *tunnel; extern sessiont *session; #define sessionfree (session[0].next) + +#define log_backtrace(count, max) \ +if (count++ < max) { \ + void *array[20]; \ + char **strings; \ + int size, i; \ + log(0, 0, 0, t, "Backtrace follows"); \ + size = backtrace(array, 10); \ + strings = backtrace_symbols(array, size); \ + if (strings) for (i = 0; i < size; i++) \ + { \ + log(0, 0, 0, t, "%s\n", strings[i]); \ + } \ + free(strings); \ +} +