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    1: /*************************************************************************
    2: * (C) 2022 CloudSigma AG - Sofia/Bulgaria
    3: *  by Michael Pounov <misho@elwix.org>
    4: **************************************************************************/
    5: #ifndef __FWSYNC_H
    6: #define __FWSYNC_H
    7: 
    8: #include <sys/types.h>
    9: #include <sys/param.h>
   10: #include <sys/systm.h>
   11: #include <sys/errno.h>
   12: #include <sys/kernel.h>
   13: #include <sys/module.h>
   14: #include <sys/conf.h>
   15: #include <machine/atomic.h>
   16: #include <sys/malloc.h>
   17: #include <sys/sysctl.h>
   18: #include <sys/mbuf.h>
   19: #include <sys/socket.h>
   20: #include <sys/socketvar.h>
   21: #include <sys/un.h>
   22: #include <sys/module.h>
   23: #include <sys/kthread.h>
   24: #include <sys/priority.h>
   25: #include <sys/taskqueue.h>
   26: #include <sys/queue.h>
   27: #include <sys/mutex.h>
   28: #include <sys/uio.h>
   29: #include <sys/poll.h>
   30: #include <net/if.h>
   31: #include <net/if_var.h>
   32: #include <net/if_dl.h>
   33: #include <netinet/in.h>
   34: #include <netinet/ip.h>
   35: #include <netinet/ip_var.h>
   36: #include <netinet/udp.h>
   37: 
   38: #define IPFW_INTERNAL
   39: 
   40: #include <netinet/ip_fw.h>
   41: #include <netpfil/ipfw/ip_fw_private.h>
   42: 
   43: #include "fwsync_proto.h"
   44: #include "fwsync_workers.h"
   45: #include "fwsync_utils.h"
   46: 
   47: 
   48: #define IFT_FWSYNC	0xfc
   49: 
   50: #define DRV_NAME	"fwsync"
   51: #define DRV_VERSION	1
   52: #define DRV_BUFSIZ	4096
   53: 
   54: #ifndef DRV_DEBUG
   55: #define DRV_DEBUG	0
   56: #endif
   57: 
   58: #ifndef STRSIZ
   59: #define STRSIZ		256
   60: #endif
   61: #ifndef BUFSIZ
   62: #define BUFSIZ		1024
   63: #endif
   64: 
   65: MALLOC_DECLARE(M_FWSYNC);
   66: 
   67: SYSCTL_DECL(_net_inet_ip);
   68: SYSCTL_DECL(_net_inet_ip_fwsync);
   69: 
   70: #define FWS_DEBUG(x, fmt, ...)	if ((x) <= fwsync_debug) printf((fmt), ## __VA_ARGS__)
   71: #define DTRACE()		FWS_DEBUG(9, "I'm in %s at line %d into file %s\n", \
   72: 						__func__, __LINE__, __FILE__)
   73: 
   74: struct cfg_sync {
   75: 	union {
   76: 		struct {
   77: 			u_int 	on:2;
   78: 			u_int 	edge:1;
   79: 			u_int 	collector:1;
   80: 			u_int 	reserved:20;
   81: 			u_int 	addrs:8;
   82: 		} cfg;
   83: 		u_int 	cfg_mode;
   84: 	};
   85: 	struct {
   86: 		union {
   87: 			struct sockaddr		addr;
   88: 			struct sockaddr_in	ip4;
   89: 			struct sockaddr_in6	ip6;
   90: 		};
   91: 	}		cfg_addr[3];
   92: };
   93: #define CFG_SYNC_ADDR_EDGE		0
   94: #define CFG_SYNC_ADDR_COLLECTOR_1	1
   95: #define CFG_SYNC_ADDR_COLLECTOR_2	2
   96: 
   97: typedef union {
   98: 	struct sockaddr_storage	ss;
   99: 	struct sockaddr		sa;
  100: 	struct sockaddr_un	sun;
  101: 	struct sockaddr_in	sin;
  102: 	struct sockaddr_in6	sin6;
  103: 	struct sockaddr_dl	sdl;
  104: } sockaddr_t;
  105: #define E_SOCKADDR_INIT	{ .ss = { 0 } }
  106: 
  107: struct fwsync_context {
  108: 	u_int config;
  109: 
  110: 	u_long edge_count;
  111: 
  112: 	struct socket *sockz[3];
  113: 	struct proc *procz[3];
  114: };
  115: #define CTX_CFG_EDGE		0x1
  116: #define CTX_CFG_COLLECTOR_1	0x2
  117: #define CTX_CFG_COLLECTOR_2	0x4
  118: #define CTX_EDGE_READY		0x8
  119: #define CTX_COLLECTOR_1_READY	0x10
  120: #define CTX_COLLECTOR_2_READY	0x20
  121: #define CTX_EDGE_ONLINE		0x40
  122: #define CTX_COLLECTOR_1_ONLINE	0x80
  123: #define CTX_COLLECTOR_2_ONLINE	0x100
  124: 
  125: #if 0
  126: #define DRETFLUSH	_IOW('D', 1, u_char)
  127: #define DRETADDFILT	_IOW('D', 2, struct dret_filter)
  128: #define DRETDELFILT	_IOW('D', 3, struct dret_filter)
  129: #define DRETACCTFLUSH	_IOW('D', 4, u_char)
  130: #define DRETACCTDEL	_IOW('D', 5, struct tagAccount)
  131: #define DRETACCTGET	_IOWR('D', 6, struct tagAccount)
  132: 
  133: #define DRETDIROFF	0
  134: #define DRETDIRIN	1
  135: #define DRETDIROUT	2
  136: #define DRETDIRANY	3
  137: #define DRETACCT	4
  138: 
  139: struct dret_filter {
  140: 	u_char		filt_dir;
  141: 	u_int		filt_proto[8];
  142: 	char		filt_iface[IFNAMSIZ];
  143: 	netaddr_t	filt_net;
  144: };
  145: #define FP_MASK(n)	((u_int) 1 << ((n) % 32))
  146: #define FP_ISSET(n, a)	((a)[(n) / 32] & FP_MASK(n))
  147: #define FP_CLR(n, a)	((a)[(n) / 32] &= ~FP_MASK(n))
  148: #define FP_SET(n, a)	((a)[(n) / 32] |= FP_MASK(n))
  149: #define FP_ZERO(a)	do { int _i = 8; \
  150: 				while (_i > 0) \
  151: 					(a)[--_i] = 0; \
  152: 			} while (0)
  153: #endif
  154: 
  155: struct fws_sndpkt {
  156: 	struct fws_proto	sp_proto;
  157: 	TAILQ_ENTRY(fws_sndpkt)	sp_next;
  158: };
  159: 
  160: typedef TAILQ_HEAD(, fws_sndpkt) fwsync_sndpkt_t;
  161: 
  162: extern int fwsync_debug;
  163: extern struct fwsync_context fws_ctx;
  164: extern struct cfg_sync fws_cfg;
  165: extern struct task fws_sndpkt_task;
  166: extern struct taskqueue *fws_tq;
  167: extern struct mtx fws_mtx_c, fws_mtx_e;
  168: extern struct mbuf *fws_sndpkt;
  169: extern fwsync_sndpkt_t fwsync_sndpkt; 
  170: 
  171: int fwsync_cfg(struct ip_fw_chain *ch, ip_fw3_opheader *op3, struct sockopt_data *sd);
  172: int fwsync_destroy(struct ip_fw_chain *ch, ip_fw3_opheader *op3, struct sockopt_data *sd);
  173: int fwsync_get_cfg(struct ip_fw_chain *ch, ip_fw3_opheader *op3, struct sockopt_data *sd);
  174: int fwsync_list(struct ip_fw_chain *ch, ip_fw3_opheader *op3, struct sockopt_data *sd);
  175: int fwsync_start(struct ip_fw_chain *ch, ip_fw3_opheader *op3, struct sockopt_data *sd);
  176: int fwsync_stop(struct ip_fw_chain *ch, ip_fw3_opheader *op3, struct sockopt_data *sd);
  177: 
  178: 
  179: #endif