netfilter/ipvs/ip_vs_ftp.c

77 ip_vs_ftp_init_conn(struct ip_vs_app *app, struct ip_vs_conn *cp)
80 	cp->flags |= IP_VS_CONN_F_NFCT;
86 ip_vs_ftp_done_conn(struct ip_vs_app *app, struct ip_vs_conn *cp)
248 static int ip_vs_ftp_out(struct ip_vs_app *app, struct ip_vs_conn *cp,
266 	if (cp->state != IP_VS_TCP_S_ESTABLISHED)
273 	if (cp->app_data == (void *) IP_VS_FTP_PASV) {
284 					   &from, &port, cp->af,
289 			  &from.ip, ntohs(port), &cp->caddr.ip, 0);
290 	} else if (cp->app_data == (void *) IP_VS_FTP_EPSV) {
300 		from = cp->daddr;
305 					   &from, &port, cp->af,
310 			      IP_VS_DBG_ADDR(cp->af, &from), ntohs(port),
311 			      IP_VS_DBG_ADDR(cp->af, &cp->caddr), 0);
320 		ip_vs_conn_fill_param(cp->ipvs, cp->af,
322 				      &cp->caddr, 0, &p);
328 		ip_vs_conn_fill_param(cp->ipvs,
329 				      cp->af, ipvsh->protocol, &cp->caddr,
330 				      0, &cp->vaddr, port, &p);
331 		n_cp = ip_vs_conn_new(&p, cp->af, &from, port,
334 				      cp->dest, skb->mark);
339 		ip_vs_control_add(n_cp, cp);
343 	if (cp->app_data == (void *) IP_VS_FTP_PASV) {
353 	} else if (cp->app_data == (void *) IP_VS_FTP_EPSV) {
393 	cp->app_data = (void *) IP_VS_FTP_ACTIVE;
418 static int ip_vs_ftp_in(struct ip_vs_app *app, struct ip_vs_conn *cp,
432 	if (cp->state != IP_VS_TCP_S_ESTABLISHED)
445 		if (cp->af == AF_INET &&
451 			cp->app_data = (void *) IP_VS_FTP_PASV;
465 				if (cp->af == AF_INET6 && proto == '2') {
468 				if (cp->af == AF_INET && proto == '1') {
477 			cp->app_data = (void *) IP_VS_FTP_EPSV;
491 	if (cp->af == AF_INET &&
496 				   &to, &port, cp->af,
504 			  &to.ip, ntohs(port), &cp->vaddr.ip,
505 			  ntohs(cp->vport)-1);
510 					  &to, &port, cp->af,
514 			      IP_VS_DBG_ADDR(cp->af, &to), ntohs(port));
519 			      IP_VS_DBG_ADDR(cp->af, &to), ntohs(port),
520 			      IP_VS_DBG_ADDR(cp->af, &cp->vaddr),
521 			      ntohs(cp->vport)-1);
527 	cp->app_data = (void *) IP_VS_FTP_ACTIVE;
531 		ip_vs_conn_fill_param(cp->ipvs, cp->af,
532 				      ipvsh->protocol, &to, port, &cp->vaddr,
533 				      htons(ntohs(cp->vport)-1), &p);
536 			n_cp = ip_vs_conn_new(&p, cp->af, &cp->daddr,
537 					      htons(ntohs(cp->dport)-1),
538 					      IP_VS_CONN_F_NFCT, cp->dest,
544 			ip_vs_control_add(n_cp, cp);