X-Git-Url: https://git.saurik.com/apple/xnu.git/blobdiff_plain/43866e378188c25dd1e2208016ab3cbeb086ae6c..7e4a7d3939db04e70062ae6c7bf24b8c8b2f5a7c:/bsd/netinet/in_var.h diff --git a/bsd/netinet/in_var.h b/bsd/netinet/in_var.h index 16baa2c15..df7a968af 100644 --- a/bsd/netinet/in_var.h +++ b/bsd/netinet/in_var.h @@ -1,16 +1,19 @@ /* - * Copyright (c) 2000 Apple Computer, Inc. All rights reserved. + * Copyright (c) 2000-2008 Apple Inc. All rights reserved. * - * @APPLE_LICENSE_HEADER_START@ - * - * Copyright (c) 1999-2003 Apple Computer, Inc. All Rights Reserved. + * @APPLE_OSREFERENCE_LICENSE_HEADER_START@ * * This file contains Original Code and/or Modifications of Original Code * as defined in and that are subject to the Apple Public Source License * Version 2.0 (the 'License'). You may not use this file except in - * compliance with the License. Please obtain a copy of the License at - * http://www.opensource.apple.com/apsl/ and read it before using this - * file. + * compliance with the License. The rights granted to you under the License + * may not be used to create, or enable the creation or redistribution of, + * unlawful or unlicensed copies of an Apple operating system, or to + * circumvent, violate, or enable the circumvention or violation of, any + * terms of an Apple operating system software license agreement. + * + * Please obtain a copy of the License at + * http://www.opensource.apple.com/apsl/ and read it before using this file. * * The Original Code and all software distributed under the License are * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER @@ -20,7 +23,7 @@ * Please see the License for the specific language governing rights and * limitations under the License. * - * @APPLE_LICENSE_HEADER_END@ + * @APPLE_OSREFERENCE_LICENSE_HEADER_END@ */ /* * Copyright (c) 1985, 1986, 1993 @@ -67,7 +70,8 @@ #include #endif -#ifdef __APPLE_API_UNSTABLE +#ifdef KERNEL_PRIVATE +#include /* * Interface address, Internet version. One of these structures @@ -76,54 +80,61 @@ * of the structure and is assumed to be first. */ struct in_ifaddr { - struct ifaddr ia_ifa; /* protocol-independent info */ -#define ia_ifp ia_ifa.ifa_ifp -#define ia_flags ia_ifa.ifa_flags - /* ia_{,sub}net{,mask} in host order */ - u_long ia_net; /* network number of interface */ - u_long ia_netmask; /* mask of net part */ - u_long ia_subnet; /* subnet number, including net */ - u_long ia_subnetmask; /* mask of subnet part */ - struct in_addr ia_netbroadcast; /* to recognize net broadcasts */ - TAILQ_ENTRY(in_ifaddr) ia_link; /* tailq macro glue */ - struct sockaddr_in ia_addr; /* reserve space for interface name */ - struct sockaddr_in ia_dstaddr; /* reserve space for broadcast addr */ -#define ia_broadaddr ia_dstaddr - struct sockaddr_in ia_sockmask; /* reserve space for general netmask */ + struct ifaddr ia_ifa; /* protocol-independent info */ +#define ia_ifp ia_ifa.ifa_ifp +#define ia_flags ia_ifa.ifa_flags + /* ia_{,sub}net{,mask} in host order */ + u_int32_t ia_net; /* network number of interface */ + u_int32_t ia_netmask; /* mask of net part */ + u_int32_t ia_subnet; /* subnet number, including net */ + u_int32_t ia_subnetmask; /* mask of subnet part */ + struct in_addr ia_netbroadcast; /* to recognize net broadcasts */ + TAILQ_ENTRY(in_ifaddr) ia_link; /* tailq macro glue */ + struct sockaddr_in ia_addr; /* reserve space for interface name */ + struct sockaddr_in ia_dstaddr; /* reserve space for broadcast addr */ +#define ia_broadaddr ia_dstaddr + struct sockaddr_in ia_sockmask; /* reserve space for general netmask */ + TAILQ_ENTRY(in_ifaddr) ia_hash; /* hash bucket entry */ }; +#endif /* KERNEL_PRIVATE */ struct in_aliasreq { - char ifra_name[IFNAMSIZ]; /* if name, e.g. "en0" */ - struct sockaddr_in ifra_addr; - struct sockaddr_in ifra_broadaddr; -#define ifra_dstaddr ifra_broadaddr - struct sockaddr_in ifra_mask; -#ifdef __APPLE__ - u_long dlt; -#endif + char ifra_name[IFNAMSIZ]; /* if name, e.g. "en0" */ + struct sockaddr_in ifra_addr; + struct sockaddr_in ifra_broadaddr; +#define ifra_dstaddr ifra_broadaddr + struct sockaddr_in ifra_mask; + u_int32_t ifra_unused; /* not used: used to be 'dlt' */ }; -#ifdef __APPLE__ /* * Event data, internet style. */ struct kev_in_data { - struct net_event_data link_data; - struct in_addr ia_addr; - u_long ia_net; /* network number of interface */ - u_long ia_netmask; /* mask of net part */ - u_long ia_subnet; /* subnet number, including net */ - u_long ia_subnetmask; /* mask of subnet part */ - struct in_addr ia_netbroadcast; /* to recognize net broadcasts */ - struct in_addr ia_dstaddr; + struct net_event_data link_data; + struct in_addr ia_addr; + u_int32_t ia_net; /* network number of interface */ + u_int32_t ia_netmask; /* mask of net part */ + u_int32_t ia_subnet; /* subnet number, including net */ + u_int32_t ia_subnetmask; /* mask of subnet part */ + struct in_addr ia_netbroadcast;/* to recognize net broadcasts */ + struct in_addr ia_dstaddr; }; struct kev_in_collision { - struct net_event_data link_data; /* link colliding arp was received on */ - struct in_addr ia_ipaddr; /* IP address we and another node are using */ - u_char hw_len; /* length of hardware address */ - u_char hw_addr[0]; /* variable length hardware address */ + struct net_event_data link_data; /* link colliding arp was received on */ + struct in_addr ia_ipaddr; /* IP address we and another node are using */ + u_char hw_len; /* length of hardware address */ + u_char hw_addr[0]; /* variable length hardware address */ +}; + +#ifdef __APPLE_API_PRIVATE +struct kev_in_portinuse { + u_int16_t port; /* conflicting port number in host order */ + u_int32_t req_pid; /* PID port requestor */ + u_int32_t reserved[2]; }; +#endif /* @@ -139,8 +150,14 @@ struct kev_in_collision { #define KEV_INET_SIFBRDADDR 5 #define KEV_INET_SIFNETMASK 6 #define KEV_INET_ARPCOLLISION 7 /* use kev_in_collision */ -#endif /* __APPLE__ */ +#ifdef __APPLE_API_PRIVATE +#define KEV_INET_PORTINUSE 8 /* use ken_in_portinuse */ +#endif + +#ifdef KERNEL_PRIVATE +#include +#include /* * Given a pointer to an in_ifaddr (ifaddr), * return a pointer to the addr as a sockaddr_in. @@ -151,48 +168,59 @@ struct kev_in_collision { #define IN_LNAOF(in, ifa) \ ((ntohl((in).s_addr) & ~((struct in_ifaddr *)(ifa)->ia_subnetmask)) -#endif /* __APPLE_API_UNSTABLE */ +/* + * Hash table for IPv4 addresses. + */ +__private_extern__ TAILQ_HEAD(in_ifaddrhead, in_ifaddr) in_ifaddrhead; +__private_extern__ TAILQ_HEAD(in_ifaddrhashhead, in_ifaddr) *in_ifaddrhashtbl; +__private_extern__ lck_rw_t *in_ifaddr_rwlock; + +#define INADDR_HASH(x) (&in_ifaddrhashtbl[inaddr_hashval(x)]) -#ifdef KERNEL -#ifdef __APPLE_API_PRIVATE -extern TAILQ_HEAD(in_ifaddrhead, in_ifaddr) in_ifaddrhead; extern struct ifqueue ipintrq; /* ip packet input queue */ extern struct in_addr zeroin_addr; extern u_char inetctlerrmap[]; +extern int apple_hwcksum_tx; +extern int apple_hwcksum_rx; + /* * Macro for finding the interface (ifnet structure) corresponding to one * of our IP addresses. */ -#define INADDR_TO_IFP(addr, ifp) \ - /* struct in_addr addr; */ \ - /* struct ifnet *ifp; */ \ -{ \ - struct in_ifaddr *ia; \ -\ - TAILQ_FOREACH(ia, &in_ifaddrhead, ia_link) \ - if (IA_SIN(ia)->sin_addr.s_addr == (addr).s_addr) \ - break; \ - (ifp) = (ia == NULL) ? NULL : ia->ia_ifp; \ +#define INADDR_TO_IFP(addr, ifp) \ + /* struct in_addr addr; */ \ + /* struct ifnet *ifp; */ \ +{ \ + struct in_ifaddr *ia; \ + \ + lck_rw_lock_shared(in_ifaddr_rwlock); \ + TAILQ_FOREACH(ia, INADDR_HASH((addr).s_addr), ia_hash) \ + if (IA_SIN(ia)->sin_addr.s_addr == (addr).s_addr) \ + break; \ + (ifp) = (ia == NULL) ? NULL : ia->ia_ifp; \ + lck_rw_done(in_ifaddr_rwlock); \ } /* * Macro for finding the internet address structure (in_ifaddr) corresponding - * to a given interface (ifnet structure). + * to a given interface (ifnet structure). Caller is responsible for freeing + * the reference. */ -#define IFP_TO_IA(ifp, ia) \ - /* struct ifnet *ifp; */ \ - /* struct in_ifaddr *ia; */ \ -{ \ - for ((ia) = TAILQ_FIRST(&in_ifaddrhead); \ - (ia) != NULL && (ia)->ia_ifp != (ifp); \ - (ia) = TAILQ_NEXT((ia), ia_link)) \ - continue; \ +#define IFP_TO_IA(ifp, ia) \ + /* struct ifnet *ifp; */ \ + /* struct in_ifaddr *ia; */ \ +{ \ + lck_rw_lock_shared(in_ifaddr_rwlock); \ + for ((ia) = TAILQ_FIRST(&in_ifaddrhead); \ + (ia) != NULL && (ia)->ia_ifp != (ifp); \ + (ia) = TAILQ_NEXT((ia), ia_link)) \ + continue; \ + if ((ia) != NULL) \ + ifaref(&(ia)->ia_ifa); \ + lck_rw_done(in_ifaddr_rwlock); \ } -#endif /* __APPLE_API_PRIVATE */ -#endif -#ifdef __APPLE_API_UNSTABLE /* * This information should be part of the ifnet structure but we don't wish * to change that - as it might break a number of things @@ -222,10 +250,6 @@ struct in_multi { u_int inm_state; /* state of the membership */ struct router_info *inm_rti; /* router info*/ }; -#endif /* __APPLE_API_UNSTABLE */ - -#ifdef KERNEL -#ifdef __APPLE_API_PRIVATE #ifdef SYSCTL_DECL SYSCTL_DECL(_net_inet_ip); @@ -259,7 +283,7 @@ do { \ (addr).s_addr) \ break; \ } \ - (inm) = ifma ? ifma->ifma_protospec : 0; \ + (inm) = ifma ? ifma->ifma_protospec : NULL; \ } while(0) /* @@ -286,20 +310,25 @@ do { \ } while(0) struct route; -struct in_multi *in_addmulti __P((struct in_addr *, struct ifnet *)); -void in_delmulti __P((struct in_multi *)); -int in_control __P((struct socket *, u_long, caddr_t, struct ifnet *, - struct proc *)); -void in_rtqdrain __P((void)); -void ip_input __P((struct mbuf *)); -int in_ifadown __P((struct ifaddr *ifa, int)); -void in_ifscrub __P((struct ifnet *, struct in_ifaddr *)); -int ipflow_fastforward __P((struct mbuf *)); -void ipflow_create __P((const struct route *, struct mbuf *)); -void ipflow_slowtimo __P((void)); - -#endif /* __APPLE_API_PRIVATE */ -#endif /* _KERNEL */ + +extern void in_ifaddr_init(void); +extern struct in_multi *in_addmulti(struct in_addr *, struct ifnet *); +extern void in_delmulti(struct in_multi **); +extern int in_control(struct socket *, u_long, caddr_t, struct ifnet *, + struct proc *); +extern void in_rtqdrain(void); +extern struct radix_node *in_validate(struct radix_node *); +extern void ip_input(struct mbuf *); +extern int in_ifadown(struct ifaddr *ifa, int); +extern void in_ifscrub(struct ifnet *, struct in_ifaddr *, int); +extern int ipflow_fastforward(struct mbuf *); +#if IPFLOW +extern void ipflow_create(const struct route *, struct mbuf *); +extern void ipflow_slowtimo(void); +#endif /* IPFLOW */ +extern u_int32_t inaddr_hashval(u_int32_t); + +#endif /* KERNEL_PRIVATE */ /* INET6 stuff */ #include