diff options
Diffstat (limited to 'sys/net/net_osdep.h')
| -rw-r--r-- | sys/net/net_osdep.h | 111 |
1 files changed, 99 insertions, 12 deletions
diff --git a/sys/net/net_osdep.h b/sys/net/net_osdep.h index 3bb3c18..399dd31 100644 --- a/sys/net/net_osdep.h +++ b/sys/net/net_osdep.h @@ -1,5 +1,5 @@ /* $FreeBSD$ */ -/* $KAME: net_osdep.h,v 1.22 2000/08/15 07:23:10 itojun Exp $ */ +/* $KAME: net_osdep.h,v 1.44 2001/05/16 03:13:40 jinmei Exp $ */ /* * Copyright (C) 1995, 1996, 1997, and 1998 WIDE Project. @@ -36,16 +36,40 @@ /* * OS dependencies: * + * - whether the IPv4 input routine convert the byte order of some fileds + * of the IP header (x: convert to the host byte order, s: strip the header + * length for possible reassembly) + * ip_len ip_id ip_off + * bsdi3: xs x x + * bsdi4: xs x + * FreeBSD: xs x + * NetBSD: x x + * OpenBSD: xs x x + * + * - ifa_ifwithaf() + * bsdi[34], netbsd, and openbsd define it in sys/net/if.c + * freebsd (all versions) does not have it. + * * - struct rt_addrinfo - * all *BSDs except bsdi4 only have two members; rti_addrs and rti_info[]. - * bsdi4 has additional members; rti_flags, rti_ifa, rti_ifp, and rti_rtm. + * bsdi4, netbsd 1.5R and beyond: rti_addrs, rti_info[], rti_flags, rti_ifa, + * rti_ifp, and rti_rtm. + * others: rti_addrs and rti_info[] only. + * + * - ifa->ifa_rtrequest + * bsdi4, netbsd 1.5R and beyond: rt_addrinfo * + * others: sockaddr * (note that sys/net/route.c:rtrequest() has an unsafe + * typecast code, from 4.3BSD-reno) * - * - side effects of rtrequest[1](RTM_DELETE) + * - side effects of rtrequest{,1}(RTM_DELETE) * BSDI[34]: delete all cloned routes underneath the route. * FreeBSD[234]: delete all protocol-cloned routes underneath the route. * note that cloned routes from an interface direct route * still remain. - * NetBSD, OpenBSD: no side effects. + * NetBSD: 1.5 have no side effects. KAME/netbsd15, and post-1.5R, have + * the same effects as of BSDI. + * OpenBSD: have no side effects. KAME/openbsd has the same effects as + * of BSDI (the change is not merged - yet). + * * - privileged process * NetBSD, FreeBSD 3 * struct proc *p; @@ -64,11 +88,13 @@ * needs to give struct proc * as argument * OpenBSD, BSDI [34], FreeBSD 2 * do not need struct proc * + * * - bpf: - * OpenBSD, NetBSD, BSDI [34] + * OpenBSD, NetBSD 1.5, BSDI [34] * need caddr_t * (= if_bpf **) and struct ifnet * - * FreeBSD 2, FreeBSD 3 + * FreeBSD 2, FreeBSD 3, NetBSD post-1.5N * need only struct ifnet * as argument + * * - struct ifnet * use queue.h? member names if name * --- --- --- @@ -77,34 +103,57 @@ * OpenBSD yes standard if_xname * NetBSD yes standard if_xname * BSDI [34] no old standard if_name+unit + * * - usrreq * NetBSD, OpenBSD, BSDI [34], FreeBSD 2 * single function with PRU_xx, arguments are mbuf * FreeBSD 3 * separates functions, non-mbuf arguments + * * - {set,get}sockopt * NetBSD, OpenBSD, BSDI [34], FreeBSD 2 * manipulation based on mbuf * FreeBSD 3 * non-mbuf manipulation using sooptcopy{in,out}() + * * - timeout() and untimeout() - * NetBSD, OpenBSD, BSDI [34], FreeBSD 2 + * NetBSD 1.4.x, OpenBSD, BSDI [34], FreeBSD 2 * timeout() is a void function * FreeBSD 3 * timeout() is non-void, must keep returned value for untimeout() + * callout_xx is also available (sys/callout.h) + * NetBSD 1.5 + * timeout() is obsoleted, use callout_xx (sys/callout.h) + * OpenBSD 2.8 + * timeout_{add,set,del} is encouraged (sys/timeout.h) + * * - sysctl * NetBSD, OpenBSD * foo_sysctl() * BSDI [34] - * foo_sysctl() but with different style - * FreeBSD 2, FreeBSD 3 - * linker hack + * foo_sysctl() but with different style. sysctl_int_arr() takes + * care of most of the cases. + * FreeBSD + * linker hack. however, there are freebsd version differences + * (how wonderful!). + * on FreeBSD[23] function arg #define includes paren. + * int foo SYSCTL_HANDLER_ARGS; + * on FreeBSD4, function arg #define does not include paren. + * int foo(SYSCTL_HANDLER_ARGS); + * on some versions, forward reference to the tree is okay. + * on some versions, you need SYSCTL_DECL(). you need things + * like this. + * #ifdef SYSCTL_DECL + * SYSCTL_DECL(net_inet_ip6); + * #endif + * it is hard to share functions between freebsd and non-freebsd. * * - if_ioctl * NetBSD, FreeBSD 3, BSDI [34] * 2nd argument is u_long cmd * FreeBSD 2 * 2nd argument is int cmd + * * - if attach routines * NetBSD * void xxattach(int); @@ -115,6 +164,7 @@ * - ovbcopy() * in NetBSD 1.4 or later, ovbcopy() is not supplied in the kernel. * bcopy() is safe against overwrites. + * * - splnet() * NetBSD 1.4 or later requires splsoftnet(). * other operating systems use splnet(). @@ -125,7 +175,8 @@ * - struct ifnet for loopback interface * BSDI3: struct ifnet loif; * BSDI4: struct ifnet *loifp; - * NetBSD, OpenBSD, FreeBSD2: struct ifnet loif[NLOOP]; + * NetBSD, OpenBSD 2.8, FreeBSD2: struct ifnet loif[NLOOP]; + * OpenBSD 2.9: struct ifnet *lo0ifp; * * odd thing is that many of them refers loif as ifnet *loif, * not loif[NLOOP], from outside of if_loop.c. @@ -145,6 +196,12 @@ * FreeBSD4: struct ipprotosw in netinet/ipprotosw.h * others: struct protosw in sys/protosw.h * + * - protosw in general. + * NetBSD 1.5 has extra member for ipfilter (netbsd-current dropped + * it so it will go away in 1.6). + * NetBSD 1.5 requires PR_LISTEN flag bit with protocols that permit + * listen/accept (like tcp). + * * - header files with defopt (opt_xx.h) * FreeBSD3: opt_{inet,ipsec,ip6fw,altq}.h * FreeBSD4: opt_{inet,inet6,ipsec,ip6fw,altq}.h @@ -154,6 +211,23 @@ * - IN_MULTICAST/IN_CLASS[A-D] macro. * OpenBSD and NetBSD: net endian (kernel) or host endian (userland) * others: always host endian + * + * - (m->m_flags & M_EXT) != 0 does *not* mean that the max data length of + * the mbuf == MCLBYTES. + * + * - sys/kern/uipc_mbuf.c:m_dup() + * freebsd[34]: copies the whole mbuf chain. + * netbsd: similar arg with m_copym(). + * others: no m_dup(). + * + * - ifa_refcnt (struct ifaddr) management (IFAREF/IFAFREE). + * NetBSD 1.5: always use IFAREF whenever reference gets added. + * always use IFAFREE whenever reference gets freed. + * IFAFREE frees ifaddr when ifa_refcnt reaches 0. + * others: do not increase refcnt for ifp->if_addrlist and in_ifaddr. + * use IFAFREE once when ifaddr is disconnected from + * ifp->if_addrlist and in_ifaddr. IFAFREE frees ifaddr when + * ifa_refcnt goes negative. */ #ifndef __NET_NET_OSDEP_H_DEFINED_ @@ -165,6 +239,19 @@ extern const char *if_name __P((struct ifnet *)); #define HAVE_OLD_BPF +#define ifa_list ifa_link +#define if_addrlist if_addrhead +#define if_list if_link + +/* sys/net/if.h */ +#define IFAREF(ifa) do { ++(ifa)->ifa_refcnt; } while (0) + +#define WITH_CONVERT_AND_STRIP_IP_LEN + +#if 1 /* at this moment, all OSes do this */ +#define WITH_CONVERT_IP_OFF +#endif + /* * Deprecated. */ |
