| ip_divert.h (196502) | ip_divert.h (201527) |
|---|---|
| 1/*- 2 * Copyright (c) 2003 Sam Leffler, Errno Consulting 3 * All rights reserved. 4 * 5 * Redistribution and use in source and binary forms, with or without 6 * modification, are permitted provided that the following conditions 7 * are met: 8 * 1. Redistributions of source code must retain the above copyright --- 15 unchanged lines hidden (view full) --- 24 * THE COPYRIGHT HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, 25 * OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 26 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 27 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER 28 * IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 29 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF 30 * THE POSSIBILITY OF SUCH DAMAGES. 31 * | 1/*- 2 * Copyright (c) 2003 Sam Leffler, Errno Consulting 3 * All rights reserved. 4 * 5 * Redistribution and use in source and binary forms, with or without 6 * modification, are permitted provided that the following conditions 7 * are met: 8 * 1. Redistributions of source code must retain the above copyright --- 15 unchanged lines hidden (view full) --- 24 * THE COPYRIGHT HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, 25 * OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 26 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 27 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER 28 * IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 29 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF 30 * THE POSSIBILITY OF SUCH DAMAGES. 31 * |
| 32 * $FreeBSD: head/sys/netinet/ip_divert.h 196502 2009-08-24 10:06:02Z zec $ | 32 * $FreeBSD: head/sys/netinet/ip_divert.h 201527 2010-01-04 19:01:22Z luigi $ |
| 33 */ 34 35#ifndef _NETINET_IP_DIVERT_H_ 36#define _NETINET_IP_DIVERT_H_ 37 38/* | 33 */ 34 35#ifndef _NETINET_IP_DIVERT_H_ 36#define _NETINET_IP_DIVERT_H_ 37 38/* |
| 39 * Sysctl declaration. | 39 * divert has no custom kernel-userland API. 40 * 41 * All communication occurs through a sockaddr_in socket where 42 * 43 * kernel-->userland 44 * sin_port = matching rule, host format; 45 * sin_addr = IN: first address of the incoming interface; 46 * OUT: INADDR_ANY 47 * sin_zero = if fits, the interface name (max 7 bytes + NUL) 48 * 49 * userland->kernel 50 * sin_port = restart-rule - 1, host order 51 * (we restart at sin_port + 1) 52 * sin_addr = IN: address of the incoming interface; 53 * OUT: INADDR_ANY |
| 40 */ | 54 */ |
| 41#ifdef SYSCTL_DECL 42SYSCTL_DECL(_net_inet_divert); 43#endif 44 45/* 46 * Divert socket definitions. 47 */ 48struct divert_tag { 49 u_int32_t info; /* port & flags */ 50 u_int16_t cookie; /* ipfw rule number */ 51}; 52 53/* 54 * Return the divert cookie associated with the mbuf; if any. 55 */ 56static __inline u_int16_t 57divert_cookie(struct m_tag *mtag) 58{ 59 return ((struct divert_tag *)(mtag+1))->cookie; 60} 61static __inline u_int16_t 62divert_find_cookie(struct mbuf *m) 63{ 64 struct m_tag *mtag = m_tag_find(m, PACKET_TAG_DIVERT, NULL); 65 return mtag ? divert_cookie(mtag) : 0; 66} 67 68/* 69 * Return the divert info associated with the mbuf; if any. 70 */ 71static __inline u_int32_t 72divert_info(struct m_tag *mtag) 73{ 74 return ((struct divert_tag *)(mtag+1))->info; 75} 76static __inline u_int32_t 77divert_find_info(struct mbuf *m) 78{ 79 struct m_tag *mtag = m_tag_find(m, PACKET_TAG_DIVERT, NULL); 80 return mtag ? divert_info(mtag) : 0; 81} 82 83typedef void ip_divert_packet_t(struct mbuf *m, int incoming); 84extern ip_divert_packet_t *ip_divert_ptr; 85 86extern void div_input(struct mbuf *, int); 87extern void div_ctlinput(int, struct sockaddr *, void *); | |
| 88#endif /* _NETINET_IP_DIVERT_H_ */ | 55#endif /* _NETINET_IP_DIVERT_H_ */ |