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5.7

    1: 
    2: /*
    3:  * ngfunc.h
    4:  *
    5:  * Written by Archie Cobbs <archie@freebsd.org>
    6:  * Copyright (c) 1995-1999 Whistle Communications, Inc. All rights reserved.
    7:  * See ``COPYRIGHT.whistle''
    8:  */
    9: 
   10: #ifndef _NGFUNC_H_
   11: #define _NGFUNC_H_
   12: 
   13: #include "defs.h"
   14: #include "bund.h"
   15: 
   16: #include <netgraph/ng_message.h>
   17: #include <netgraph/ng_ppp.h>
   18: 
   19: /*
   20:  * DEFINITIONS
   21:  */
   22: 
   23:   /*
   24:    * The "mssfix-in"/"mssfix-out" hooks are used for TCP SYN segments,
   25:    * if userland tcpmssfix is on.
   26:    */
   27: 
   28:   #ifndef USE_NG_TCPMSS
   29:   #define MPD_HOOK_TCPMSS_IN	"tcpmss-in"
   30:   #define MPD_HOOK_TCPMSS_OUT	"tcpmss-out"
   31:   #endif
   32: 
   33:   #define BPF_HOOK_PPP		"ppp"
   34:   #define BPF_HOOK_IFACE	"iface"
   35:   #define BPF_HOOK_MPD		"mpd"
   36: 
   37:   #define BPF_MODE_OFF		0	/* no BPF node traffic gets through */
   38:   #define BPF_MODE_ON		1	/* normal BPF node traffic flow */
   39:   #define BPF_MODE_DEMAND	2	/* block traffic; redirect demand */
   40:   #define BPF_MODE_MSSFIX	3	/* redirect all TCP SYN packets */
   41:   #define BPF_MODE_MSSFIX_IN	4	/* redirect incoming TCP SYN packets */
   42:   #define BPF_MODE_MSSFIX_OUT	5	/* redirect outgoing TCP SYN packets */
   43: 
   44: /*
   45:  * VARIABLES
   46:  */
   47: 
   48:   #ifdef USE_NG_TCPMSS
   49:   extern u_char gTcpMSSNode;
   50:   #endif
   51:   #ifdef USE_NG_NETFLOW
   52:   extern const struct cmdtab NetflowSetCmds[];
   53:   
   54:   extern u_char gNetflowNode;
   55:   extern u_char gNetflowNodeShutdown;
   56:   extern char gNetflowNodeName[64];
   57:   extern ng_ID_t gNetflowNodeID;
   58:   extern u_int gNetflowIface;
   59:   extern struct sockaddr_storage gNetflowExport;
   60:   extern struct sockaddr_storage gNetflowSource;
   61:   extern uint32_t gNetflowInactive;
   62:   extern uint32_t gNetflowActive;
   63:   #endif
   64:   
   65: /*
   66:  * FUNCTIONS
   67:  */
   68: 
   69:   extern void	NgFuncShutdownGlobal(void);
   70:   extern void	NgFuncSetConfig(Bund b);
   71:   extern int	NgFuncWritePppFrame(Bund b, int linkNum, int proto, Mbuf bp);
   72:   extern int	NgFuncWritePppFrameLink(Link l, int proto, Mbuf bp);
   73:   extern int	NgFuncWriteFrame(int dsock, const char *hookname, const char *label, Mbuf bp);
   74:   extern int	NgFuncClrStats(Bund b, u_int16_t linkNum);
   75:   extern int	NgFuncGetStats(Bund b, u_int16_t linkNum,
   76: 			struct ng_ppp_link_stat *s);
   77:   extern int	NgFuncGetStats64(Bund b, u_int16_t linkNum,
   78: 			struct ng_ppp_link_stat64 *s);
   79:   extern int	NgFuncSendQuery(const char *path, int cookie, int cmd,
   80: 			const void *args, size_t arglen, struct ng_mesg *rbuf,
   81: 			size_t replen, char *raddr);
   82: 
   83:   extern int	NgFuncConnect(int csock, char *label, const char *path, const char *hook,
   84: 			const char *path2, const char *hook2);
   85:   extern int	NgFuncDisconnect(int csock, char *label, const char *path, const char *hook);
   86:   extern int	NgFuncShutdownNode(int csock, const char *label, const char *path);
   87: 
   88:   extern void	NgFuncErrx(const char *fmt, ...);
   89:   extern void	NgFuncErr(const char *fmt, ...);
   90: 
   91:   #ifdef USE_NG_NETFLOW
   92:   extern int	NgFuncInitGlobalNetflow(void);
   93:   extern int	ShowNetflow(Context ctx, int ac, char *av[], void *arg);
   94:   #endif
   95:   
   96:   extern int	NgFuncCreateIface(Bund b, char *buf, int max);
   97:   extern ng_ID_t	NgGetNodeID(int csock, const char *path);
   98: 
   99: #endif
  100: