Merge of branches/team/network/new_stack - not yet complete as SVN does only support
replacing files when merging when you don't have deleted them manually (for some reason, it only works as part of the merge operation, and we didn't copy the whole tree to have "a fresh start" - next time we know better, at least if SVN still suffers from that same limitation). git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@18456 a95241bf-73f2-0310-859d-f6bbb57e9c96
This commit is contained in:
Axel Dörfler
+29
-203
@@ -1,208 +1,34 @@
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/* route.h */
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/*
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* Copyright 2006, Haiku, Inc. All Rights Reserved.
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* Distributed under the terms of the MIT License.
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*/
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#ifndef _NET_ROUTE_H
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#define _NET_ROUTE_H
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#include <net/radix.h>
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#include <sys/socket.h> /* for AF_MAX */
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/*
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* A route consists of a destination address and a reference
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* to a routing entry. These are often held by protocols
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* in their control blocks, e.g. inpcb.
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*/
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struct route {
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struct rtentry *ro_rt;
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struct sockaddr ro_dst;
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#include <sys/socket.h>
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#define RTF_UP 0x00000001
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#define RTF_GATEWAY 0x00000002
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#define RTF_HOST 0x00000004
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#define RTF_REJECT 0x00000008
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#define RTF_DYNAMIC 0x00000010
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#define RTF_MODIFIED 0x00000020
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#define RTF_DEFAULT 0x00000080
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#define RTF_STATIC 0x00000800
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#define RTF_BLACKHOLE 0x00001000
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#define RTF_LOCAL 0x00200000
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// This structure is used to pass routes to and from the network stack
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// (via struct ifreq)
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struct route_entry {
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struct sockaddr *destination;
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struct sockaddr *mask;
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struct sockaddr *gateway;
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uint32_t flags;
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uint32_t mtu;
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};
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/*
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* These numbers are used by reliable protocols for determining
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* retransmission behavior and are included in the routing structure.
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*/
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struct rt_metrics {
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uint32 rmx_locks; /* Kernel must leave these values alone */
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uint32 rmx_mtu; /* MTU for this path */
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uint32 rmx_hopcount; /* max hops expected */
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uint32 rmx_expire; /* lifetime for route, e.g. redirect */
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u_long rmx_recvpipe; /* inbound delay-bandwith product */
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u_long rmx_sendpipe; /* outbound delay-bandwith product */
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u_long rmx_ssthresh; /* outbound gateway buffer limit */
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u_long rmx_rtt; /* estimated round trip time */
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u_long rmx_rttvar; /* estimated rtt variance */
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u_long rmx_pksent; /* packets sent using this route */
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};
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/*
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* rmx_rtt and rmx_rttvar are stored as microseconds;
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* RTTTOPRHZ(rtt) converts to a value suitable for use
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* by a protocol slowtimo counter.
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*/
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#define RTM_RTTUNIT 1000000 /* units for rtt, rttvar, as units per sec */
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#define RTTTOPRHZ(r) ((r) / (RTM_RTTUNIT / PR_SLOWHZ))
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struct rtentry {
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struct radix_node rt_nodes[2]; /* tree glue, and other values */
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struct sockaddr *rt_gateway; /* value */
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uint rt_flags; /* up/down?, host/net */
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int rt_refcnt; /* # held references */
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uint32 rt_use; /* raw # packets forwarded */
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struct ifnet *rt_ifp; /* the answer: interface to use */
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struct ifaddr *rt_ifa; /* the answer: interface to use */
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struct sockaddr *rt_genmask; /* for generation of cloned routes */
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char * rt_llinfo; /* pointer to link level info cache */
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struct rt_metrics rt_rmx; /* metrics used by rx'ing protocols */
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struct rtentry *rt_gwroute; /* implied entry for gatewayed routes */
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struct rtentry *rt_parent; /* If cloned, parent of this route. */
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/* XXX - add this! */
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// rt_timer; * queue of timeouts for misc funcs *
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};
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#define rt_use rt_rmx.rmx_pksent
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#define rt_key(r) ((struct sockaddr *)((r)->rt_nodes->rn_key))
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#define rt_mask(r) ((struct sockaddr *)((r)->rt_nodes->rn_mask))
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#define RTF_UP 0x1 /* route usable */
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#define RTF_GATEWAY 0x2 /* destination is a gateway */
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#define RTF_HOST 0x4 /* host entry (net otherwise) */
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#define RTF_REJECT 0x8 /* host or net unreachable */
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#define RTF_DYNAMIC 0x10 /* created dynamically (by redirect) */
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#define RTF_MODIFIED 0x20 /* modified dynamically (by redirect) */
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#define RTF_DONE 0x40 /* message confirmed */
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#define RTF_MASK 0x80 /* subnet mask present */
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#define RTF_CLONING 0x100 /* generate new routes on use */
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#define RTF_XRESOLVE 0x200 /* external daemon resolves name */
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#define RTF_LLINFO 0x400 /* generated by ARP or ESIS */
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#define RTF_STATIC 0x800 /* manually added */
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#define RTF_BLACKHOLE 0x1000 /* just discard pkts (during updates) */
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#define RTF_PROTO3 0x2000 /* protocol specific routing flag */
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#define RTF_PROTO2 0x4000 /* protocol specific routing flag */
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#define RTF_PROTO1 0x8000 /* protocol specific routing flag */
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#define RTM_VERSION 3 /* Up the ante and ignore older versions */
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#define RTM_ADD 0x1 /* Add Route */
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#define RTM_DELETE 0x2 /* Delete Route */
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#define RTM_CHANGE 0x3 /* Change Metrics or flags */
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#define RTM_GET 0x4 /* Report Metrics */
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#define RTM_LOSING 0x5 /* Kernel Suspects Partitioning */
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#define RTM_REDIRECT 0x6 /* Told to use different route */
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#define RTM_MISS 0x7 /* Lookup failed on this address */
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#define RTM_LOCK 0x8 /* fix specified metrics */
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#define RTM_OLDADD 0x9 /* caused by SIOCADDRT */
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#define RTM_OLDDEL 0xa /* caused by SIOCDELRT */
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#define RTM_RESOLVE 0xb /* req to resolve dst to LL addr */
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#define RTM_NEWADDR 0xc /* address being added to iface */
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#define RTM_DELADDR 0xd /* address being removed from iface */
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#define RTM_IFINFO 0xe /* iface going up/down etc. */
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#define RTV_MTU 0x1 /* init or lock _mtu */
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#define RTV_HOPCOUNT 0x2 /* init or lock _hopcount */
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#define RTV_EXPIRE 0x4 /* init or lock _hopcount */
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#define RTV_RPIPE 0x8 /* init or lock _recvpipe */
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#define RTV_SPIPE 0x10 /* init or lock _sendpipe */
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#define RTV_SSTHRESH 0x20 /* init or lock _ssthresh */
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#define RTV_RTT 0x40 /* init or lock _rtt */
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#define RTV_RTTVAR 0x80 /* init or lock _rttvar */
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/*
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* Bitmask values for rtm_addr.
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*/
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#define RTA_DST 0x1 /* destination sockaddr present */
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#define RTA_GATEWAY 0x2 /* gateway sockaddr present */
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#define RTA_NETMASK 0x4 /* netmask sockaddr present */
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#define RTA_GENMASK 0x8 /* cloning mask sockaddr present */
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#define RTA_IFP 0x10 /* interface name sockaddr present */
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#define RTA_IFA 0x20 /* interface addr sockaddr present */
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#define RTA_AUTHOR 0x40 /* sockaddr for author of redirect */
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#define RTA_BRD 0x80 /* for NEWADDR, broadcast or p-p dest addr */
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/*
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* Index offsets for sockaddr array for alternate internal encoding.
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*/
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#define RTAX_DST 0 /* destination sockaddr present */
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#define RTAX_GATEWAY 1 /* gateway sockaddr present */
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#define RTAX_NETMASK 2 /* netmask sockaddr present */
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#define RTAX_GENMASK 3 /* cloning mask sockaddr present */
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#define RTAX_IFP 4 /* interface name sockaddr present */
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#define RTAX_IFA 5 /* interface addr sockaddr present */
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#define RTAX_AUTHOR 6 /* sockaddr for author of redirect */
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#define RTAX_BRD 7 /* for NEWADDR, broadcast or p-p dest addr */
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#define RTAX_MAX 8 /* size of array to allocate */
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struct rt_msghdr {
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uint16 rtm_msglen;
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uint8 rtm_version;
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uint8 rtm_type;
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uint16 rtm_index;
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int rtm_flags;
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int rtm_addrs;
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int rtm_seq;
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int rtm_errno;
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int rtm_use;
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uint32 rtm_inits;
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struct rt_metrics rtm_rmx;
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};
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struct rt_addrinfo {
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int rti_addrs;
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struct sockaddr *rti_info[RTAX_MAX];
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int rti_flags;
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struct ifaddr *rti_ifa;
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struct ifnet *rti_ifp;
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struct rt_msghdr *rti_rtm;
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};
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struct route_cb {
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int32 ip_count; /* how many AF_INET structures we have */
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int32 any_count; /* total of all above... */
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};
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struct walkarg {
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int w_op;
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int w_arg;
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int w_given;
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int w_needed;
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int w_tmemsize;
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char * w_where;
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char * w_tmem;
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};
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/*
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* Routing statistics.
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*/
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struct rtstat {
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int32 rts_badredirect; /* bogus redirect calls */
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int32 rts_dynamic; /* routes created by redirects */
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int32 rts_newgateway; /* routes modified by redirects */
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int32 rts_unreach; /* lookups which failed */
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int32 rts_wildcard; /* lookups satisfied by a wildcard */
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};
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#define RTFREE(rt) do { \
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if ((rt)->rt_refcnt <= 1) \
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rtfree(rt); \
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else \
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(rt)->rt_refcnt--; \
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} while (0)
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extern struct rtstat rtstat;
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extern struct radix_node_head *rt_tables[AF_MAX+1];
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void route_init(void);
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int rtinit (struct ifaddr *, int, int);
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void rtalloc (struct route *);
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struct rtentry *rtalloc1 (struct sockaddr *, int);
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void rtfree (struct rtentry *);
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int rtrequest (int, struct sockaddr *,
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struct sockaddr *, struct sockaddr *, int,
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struct rtentry **);
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void rt_maskedcopy(struct sockaddr *src,
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struct sockaddr *dst,
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struct sockaddr *netmask);
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int rt_setgate (struct rtentry *, struct sockaddr *,
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struct sockaddr *);
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struct radix_node_head ** get_rt_tables(void);
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#endif /* NET_ROUTE_H */
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#endif /* _NET_ROUTE_H */
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