mirror of
https://github.com/3proxy/3proxy.git
synced 2025-02-23 18:45:40 +08:00
eb829b062b
- sockmapping rewritten from stratch to minimilse polling. poll() is now only called if blocking is actually expected, splice pipes are now polled if splice fails, buffers flushing is much more accurate. - logging code moved to separate files - signal masks added to client threads to prevent unneeded interruptions - bandwidth limitation will not delay the thread after client or server shutdown
354 lines
11 KiB
C
354 lines
11 KiB
C
/*
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3APA3A simpliest proxy server
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(c) 2002-2016 by Vladimir Dubrovin <3proxy@3proxy.ru>
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please read License Agreement
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*/
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#define COPYRIGHT "(c)3APA3A, Vladimir Dubrovin & 3proxy.ru\n"\
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"Documentation and sources: http://3proxy.ru/\n"\
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"Please read license agreement in \'copying\' file.\n"\
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"You may not use this program without accepting license agreement"
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#ifndef _3PROXY_H_
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#define _3PROXY_H_
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#include "version.h"
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#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#include <ctype.h>
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#include <sys/types.h>
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#include <sys/stat.h>
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#include <fcntl.h>
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#include <time.h>
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#define MAXUSERNAME 128
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#define _PASSWORD_LEN 256
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#define MAXNSERVERS 5
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#define UDPBUFSIZE 16384
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#define TCPBUFSIZE 8192
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#define SRVBUFSIZE (param->srv->bufsize?param->srv->bufsize:((param->service == S_UDPPM)?UDPBUFSIZE:TCPBUFSIZE))
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#ifdef _WIN32
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#include <winsock2.h>
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#include <sys/timeb.h>
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#ifndef _WINCE
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#include <io.h>
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#else
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#include <sys/unistd.h>
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#endif
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#include <process.h>
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#define SASIZETYPE int
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#define SHUT_RDWR SD_BOTH
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#else
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#ifndef FD_SETSIZE
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#define FD_SETSIZE 4096
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#endif
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#include <signal.h>
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#include <sys/uio.h>
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#include <sys/time.h>
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#include <unistd.h>
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#include <pthread.h>
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#include <syslog.h>
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#include <errno.h>
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#endif
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#ifdef __CYGWIN__
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#include <windows.h>
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#define daemonize() FreeConsole()
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#define SLEEPTIME 1000
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#undef _WIN32
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#elif _WIN32
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#ifdef errno
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#undef errno
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#endif
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#define errno WSAGetLastError()
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#ifdef EAGAIN
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#undef EAGAIN
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#endif
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#define EAGAIN WSAEWOULDBLOCK
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#ifdef EINTR
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#undef EINTR
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#endif
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#ifndef EINPROGRESS
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#define EINPROGRESS WSAEWOULDBLOCK
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#endif
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#define EINTR WSAEWOULDBLOCK
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#define SLEEPTIME 1
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#define usleep Sleep
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#define pthread_self GetCurrentThreadId
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#define getpid GetCurrentProcessId
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#define pthread_t unsigned
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#ifndef _WINCE
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#define daemonize() FreeConsole()
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#else
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#define daemonize()
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#endif
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#define socket(x, y, z) WSASocket(x, y, z, NULL, 0, 0)
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#define accept(x, y, z) WSAAccept(x, y, z, NULL, 0)
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#define ftruncate chsize
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#else
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#include <pthread.h>
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#ifndef PTHREAD_STACK_MIN
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#define PTHREAD_STACK_MIN 32768
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#define sockerror strerror
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#endif
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void daemonize(void);
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#define SLEEPTIME 1000
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#ifndef O_BINARY
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#define O_BINARY 0
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#endif
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#endif
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#ifndef NOODBC
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#ifndef _WIN32
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#include <sqltypes.h>
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#endif
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#include <sql.h>
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#include <sqlext.h>
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#endif
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#ifdef _WIN32
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#define strcasecmp stricmp
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#define strncasecmp strnicmp
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#endif
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#ifndef SOCKET_ERROR
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#define SOCKET_ERROR -1
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#endif
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#ifndef isnumber
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#define isnumber(n) (n >= '0' && n <= '9')
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#endif
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#ifndef ishex
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#define ishex(n) ((n >= '0' && n <= '9') || (n >= 'a' && n<='f') || (n >= 'A' && n <= 'F'))
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#endif
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#define isallowed(n) ((n >= '0' && n <= '9') || (n >= 'a' && n <= 'z') || (n >= 'A' && n <= 'Z') || (n >= '*' && n <= '/') || n == '_')
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#include "structures.h"
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#define MAXRADIUS 5
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#define DEFLOGFORMAT "G%y%m%d%H%M%S.%. %p %E %U %C:%c %R:%r %O %I %h %T"
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#define myalloc malloc
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#define myfree free
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#define myrealloc realloc
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#define mystrdup strdup
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extern RESOLVFUNC resolvfunc;
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extern int wday;
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extern time_t basetime;
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extern int timetoexit;
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extern struct extparam conf;
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int sockmap(struct clientparam * param, int timeo, int usesplice);
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int socksend(SOCKET sock, unsigned char * buf, int bufsize, int to);
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int socksendto(SOCKET sock, struct sockaddr * sin, unsigned char * buf, int bufsize, int to);
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int sockrecvfrom(SOCKET sock, struct sockaddr * sin, unsigned char * buf, int bufsize, int to);
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int sockgetcharcli(struct clientparam * param, int timeosec, int timeousec);
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int sockgetcharsrv(struct clientparam * param, int timeosec, int timeousec);
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int sockfillbuffcli(struct clientparam * param, unsigned long size, int timeosec);
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int sockfillbuffsrv(struct clientparam * param, unsigned long size, int timeosec);
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int sockgetlinebuf(struct clientparam * param, DIRECTION which, unsigned char * buf, int bufsize, int delim, int to);
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void dolog(struct clientparam * param, const unsigned char *s);
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int dobuf(struct clientparam * param, unsigned char * buf, const unsigned char *s, const unsigned char * doublec);
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int dobuf2(struct clientparam * param, unsigned char * buf, const unsigned char *s, const unsigned char * doublec, struct tm* tm, char * format);
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extern FILE * stdlog;
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void logstdout(struct clientparam * param, const unsigned char *s);
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void logsyslog(struct clientparam * param, const unsigned char *s);
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void lognone(struct clientparam * param, const unsigned char *s);
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void logradius(struct clientparam * param, const unsigned char *s);
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#ifndef NOSQL
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void logsql(struct clientparam * param, const unsigned char *s);
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int init_sql(char * s);
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void close_sql();
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#endif
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int doconnect(struct clientparam * param);
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int alwaysauth(struct clientparam * param);
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int ipauth(struct clientparam * param);
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int doauth(struct clientparam * param);
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int strongauth(struct clientparam * param);
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void trafcountfunc(struct clientparam *param);
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unsigned bandlimitfunc(struct clientparam *param, unsigned nbytesin, unsigned nbytesout);
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int scanaddr(const unsigned char *s, unsigned long * ip, unsigned long * mask);
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int myinet_ntop(int af, void *src, char *dst, socklen_t size);
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extern struct nserver nservers[MAXNSERVERS];
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extern struct nserver authnserver;
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unsigned long getip(unsigned char *name);
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unsigned long getip46(int family, unsigned char *name, struct sockaddr *sa);
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int afdetect(unsigned char *name);
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unsigned long myresolver(int, unsigned char *, unsigned char *);
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unsigned long fakeresolver (int, unsigned char *, unsigned char*);
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int inithashtable(struct hashtable *hashtable, unsigned nhashsize);
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void freeparam(struct clientparam * param);
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void clearstat(struct clientparam * param);
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void dumpcounters(struct trafcount *tl, int counterd);
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int startconnlims (struct clientparam *param);
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void stopconnlims (struct clientparam *param);
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extern struct auth authfuncs[];
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int reload (void);
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extern int paused;
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extern int demon;
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unsigned char * mycrypt(const unsigned char *key, const unsigned char *salt, unsigned char *buf);
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unsigned char * ntpwdhash (unsigned char *szHash, const unsigned char *szPassword, int tohex);
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int de64 (const unsigned char *in, unsigned char *out, int maxlen);
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unsigned char* en64 (const unsigned char *in, unsigned char *out, int inlen);
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void tohex(unsigned char *in, unsigned char *out, int len);
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void fromhex(unsigned char *in, unsigned char *out, int len);
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int ftplogin(struct clientparam *param, char *buf, int *inbuf);
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int ftpcd(struct clientparam *param, unsigned char* path, char *buf, int *inbuf);
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int ftpsyst(struct clientparam *param, unsigned char *buf, unsigned len);
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int ftppwd(struct clientparam *param, unsigned char *buf, unsigned len);
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int ftptype(struct clientparam *param, unsigned char* f_type);
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int ftpres(struct clientparam *param, unsigned char * buf, int len);
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SOCKET ftpcommand(struct clientparam *param, unsigned char * command, unsigned char *arg);
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int text2unicode(const char * text, char * buf, int buflen);
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void unicode2text(const char *unicode, char * buf, int len);
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void genchallenge(struct clientparam *param, char * challenge, char *buf);
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void mschap(const unsigned char *win_password,
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const unsigned char *challenge, unsigned char *response);
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struct hashtable;
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void hashadd(struct hashtable *ht, const unsigned char* name, unsigned char* value, time_t expires);
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int parsehost(int family, unsigned char *host, struct sockaddr *sa);
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int parsehostname(char *hostname, struct clientparam *param, unsigned short port);
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int parseusername(char *username, struct clientparam *param, int extpasswd);
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int parseconnusername(char *username, struct clientparam *param, int extpasswd, unsigned short port);
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int ACLmatches(struct ace* acentry, struct clientparam * param);
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int checkACL(struct clientparam * param);
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extern int havelog;
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unsigned long udpresolve(int af, unsigned char * name, unsigned char * value, unsigned *retttl, struct clientparam* param, int makeauth);
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struct ace * copyacl (struct ace *ac);
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struct auth * copyauth (struct auth *);
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void * itfree(void *data, void * retval);
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void freeacl(struct ace *ac);
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void freeauth(struct auth *);
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void freefilter(struct filter *filter);
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void freeconf(struct extparam *confp);
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struct passwords * copypwl (struct passwords *pwl);
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void freepwl(struct passwords *pw);
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void copyfilter(struct filter *, struct srvparam *srv);
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FILTER_ACTION makefilters (struct srvparam *srv, struct clientparam *param);
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FILTER_ACTION handlereqfilters(struct clientparam *param, unsigned char ** buf_p, int * bufsize_p, int offset, int * length_p);
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FILTER_ACTION handlehdrfilterscli(struct clientparam *param, unsigned char ** buf_p, int * bufsize_p, int offset, int * length_p);
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FILTER_ACTION handlehdrfilterssrv(struct clientparam *param, unsigned char ** buf_p, int * bufsize_p, int offset, int * length_p);
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FILTER_ACTION handlepredatflt(struct clientparam *param);
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FILTER_ACTION handledatfltcli(struct clientparam *param, unsigned char ** buf_p, int * bufsize_p, int offset, int * length_p);
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FILTER_ACTION handledatfltsrv(struct clientparam *param, unsigned char ** buf_p, int * bufsize_p, int offset, int * length_p);
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void srvinit(struct srvparam * srv, struct clientparam *param);
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void srvinit2(struct srvparam * srv, struct clientparam *param);
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void srvfree(struct srvparam * srv);
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unsigned char * dologname (unsigned char *buf, unsigned char *name, const unsigned char *ext, ROTATION lt, time_t t);
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int readconfig(FILE * fp);
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int connectwithpoll(SOCKET sock, struct sockaddr *sa, SASIZETYPE size, int to);
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int myrand(void * entropy, int len);
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extern char *copyright;
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#define SERVICES 5
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void * dnsprchild(struct clientparam * param);
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void * pop3pchild(struct clientparam * param);
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void * smtppchild(struct clientparam * param);
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void * proxychild(struct clientparam * param);
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void * sockschild(struct clientparam * param);
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void * tcppmchild(struct clientparam * param);
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void * udppmchild(struct clientparam * param);
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void * adminchild(struct clientparam * param);
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void * ftpprchild(struct clientparam * param);
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struct datatype;
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struct dictionary;
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struct node;
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struct property;
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extern pthread_mutex_t config_mutex;
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extern pthread_mutex_t bandlim_mutex;
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extern pthread_mutex_t connlim_mutex;
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extern pthread_mutex_t hash_mutex;
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extern pthread_mutex_t tc_mutex;
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extern pthread_mutex_t pwl_mutex;
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extern pthread_mutex_t log_mutex;
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extern pthread_mutex_t rad_mutex;
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extern struct datatype datatypes[64];
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extern struct commands commandhandlers[];
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#ifdef WITHSPLICE
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#define mapsocket(a,b) ((a->srv->usesplice && !a->ndatfilterssrv && !a->ndatfilterscli)?sockmap(a,b,1):sockmap(a,b,0))
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#else
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#define mapsocket(a,b) sockmap(a,b, 0)
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#endif
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extern struct radserver {
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#ifdef NOIPV6
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struct sockaddr_in authaddr, logaddr;
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#else
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struct sockaddr_in6 authaddr, logaddr;
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#endif
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/*
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SOCKET logsock;
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*/
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} radiuslist[MAXRADIUS];
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extern char radiussecret[64];
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extern int nradservers;
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extern struct socketoptions {
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int opt;
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char * optname;
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} sockopts[];
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void setopts(SOCKET s, int opts);
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char * printopts(char *sep);
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#ifdef _WINCE
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char * CEToUnicode (const char *str);
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int cesystem(const char *str);
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int ceparseargs(const char *str);
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extern char * ceargv[32];
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#define system(S) cesystem(S)
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#endif
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#define WEBBANNERS 35
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#endif
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