From bd2941b4d4f81560d8566ef68a8bb9759841ba14 Mon Sep 17 00:00:00 2001 From: Jennifer Averett Date: Thu, 6 Sep 2012 10:19:13 -0500 Subject: route: Added files for the route command. --- .gitignore | 1 + freebsd-userspace/Makefile | 15 +- freebsd-userspace/commands/sbin/route/keywords | 55 + freebsd-userspace/commands/sbin/route/route.8 | 411 ++++++ freebsd-userspace/commands/sbin/route/route.c | 1681 ++++++++++++++++++++++++ freebsd-userspace/from-freebsd.sh | 2 + freebsd-userspace/include/netatalk/at.h | 2 + freebsd-userspace/include/netinet/if_ether.h | 2 + 8 files changed, 2168 insertions(+), 1 deletion(-) create mode 100644 freebsd-userspace/commands/sbin/route/keywords create mode 100644 freebsd-userspace/commands/sbin/route/route.8 create mode 100644 freebsd-userspace/commands/sbin/route/route.c create mode 100644 freebsd-userspace/include/netatalk/at.h create mode 100644 freebsd-userspace/include/netinet/if_ether.h diff --git a/.gitignore b/.gitignore index 9d84c597..885ff5d6 100644 --- a/.gitignore +++ b/.gitignore @@ -25,6 +25,7 @@ rtemsbsd/sparc/sparc/in_cksum.c rtemsbsd/sparc/include/freebsd/machine/in_cksum.h rtemsbsd/v850/v850/in_cksum.c rtemsbsd/v850/include/freebsd/machine/in_cksum.h +freebsd-userspace/commands/sbin/route/keywords.h freebsd-userspace/include/rpc/rpcb_prot.h rtemsbsd/arm/include/freebsd/machine/legacyvar.h rtemsbsd/arm/include/freebsd/machine/pci_cfgreg.h diff --git a/freebsd-userspace/Makefile b/freebsd-userspace/Makefile index 049555fc..9869d8c8 100644 --- a/freebsd-userspace/Makefile +++ b/freebsd-userspace/Makefile @@ -86,12 +86,15 @@ C_FILES += rtems/syslog.c C_FILES += commands/sbin/ping/ping.c C_FILES += commands/sbin/ping6/ping6.c +# route command sources +C_FILES += commands/sbin/route/route.c + C_O_FILES = $(C_FILES:%.c=%.o) C_D_FILES = $(C_FILES:%.c=%.d) LIB = libbsdc.a GEN_FILES = include/rpc/rpcb_prot.h - +GEN_FILES += commands/sbin/route/keywords.h all: $(LIB) $(LIB): $(GEN_FILES) $(C_O_FILES) @@ -101,6 +104,16 @@ include/rpc/rpcb_prot.h: include/rpc/rpcb_prot.x rm -f include/rpc/rpcb_prot.h rpcgen -h -o include/rpc/rpcb_prot.h include/rpc/rpcb_prot.x +commands/sbin/route/keywords.h: commands/sbin/route/keywords + sed -e '/^#/d' -e '/^$$/d' commands/sbin/route//keywords > _keywords.tmp + LC_ALL=C tr 'a-z' 'A-Z' < _keywords.tmp | paste _keywords.tmp - | \ + awk '{ \ + if (NF > 1) \ + printf "#define\tK_%s\t%d\n\t{\"%s\", K_%s},\n", \ + $$2, NR, $$1, $$2 }' \ + > commands/sbin/route/keywords.h + rm -f _keywords.tmp + install: $(LIB) install -d $(INSTALL_BASE)/include cd include; for i in `find . -name '*.h'` ; do \ diff --git a/freebsd-userspace/commands/sbin/route/keywords b/freebsd-userspace/commands/sbin/route/keywords new file mode 100644 index 00000000..8817f305 --- /dev/null +++ b/freebsd-userspace/commands/sbin/route/keywords @@ -0,0 +1,55 @@ +# @(#)keywords 8.2 (Berkeley) 3/19/94 +# $FreeBSD$ + +add +atalk +blackhole +change +cloning +del +delete +dst +expire +flush +gateway +genmask +get +host +hopcount +iface +interface +ifa +ifp +inet +inet6 +iso +link +llinfo +lock +lockrest +mask +monitor +mtu +net +netmask +nostatic +nostick +osi +prefixlen +proto1 +proto2 +proxy +recvpipe +reject +rtt +rttvar +sa +sendpipe +show +ssthresh +static +sticky +weight +x25 +xns +xresolve diff --git a/freebsd-userspace/commands/sbin/route/route.8 b/freebsd-userspace/commands/sbin/route/route.8 new file mode 100644 index 00000000..59567865 --- /dev/null +++ b/freebsd-userspace/commands/sbin/route/route.8 @@ -0,0 +1,411 @@ +.\" Copyright (c) 1983, 1991, 1993 +.\" The Regents of the University of California. All rights reserved. +.\" +.\" Redistribution and use in source and binary forms, with or without +.\" modification, are permitted provided that the following conditions +.\" are met: +.\" 1. Redistributions of source code must retain the above copyright +.\" notice, this list of conditions and the following disclaimer. +.\" 2. Redistributions in binary form must reproduce the above copyright +.\" notice, this list of conditions and the following disclaimer in the +.\" documentation and/or other materials provided with the distribution. +.\" 4. Neither the name of the University nor the names of its contributors +.\" may be used to endorse or promote products derived from this software +.\" without specific prior written permission. +.\" +.\" THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND +.\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE +.\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE +.\" ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE +.\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL +.\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS +.\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) +.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT +.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY +.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF +.\" SUCH DAMAGE. +.\" +.\" @(#)route.8 8.3 (Berkeley) 3/19/94 +.\" $FreeBSD$ +.\" +.Dd October 2, 2005 +.Dt ROUTE 8 +.Os +.Sh NAME +.Nm route +.Nd manually manipulate the routing tables +.Sh SYNOPSIS +.Nm +.Op Fl dnqtv +.Ar command +.Oo +.Op Ar modifiers +.Ar args +.Oc +.Sh DESCRIPTION +The +.Nm +utility is used to manually manipulate the network +routing tables. +It normally is not needed, as a +system routing table management daemon, such as +.Xr routed 8 , +should tend to this task. +.Pp +The +.Nm +utility supports a limited number of general options, +but a rich command language, enabling the user to specify +any arbitrary request that could be delivered via the +programmatic interface discussed in +.Xr route 4 . +.Pp +The following options are available: +.Bl -tag -width indent +.It Fl d +Run in debug-only mode, i.e., do not actually modify the routing table. +.It Fl n +Bypass attempts to print host and network names symbolically +when reporting actions. +(The process of translating between symbolic +names and numerical equivalents can be quite time consuming, and +may require correct operation of the network; thus it may be expedient +to forget this, especially when attempting to repair networking operations). +.It Fl t +Run in test-only mode. +.Pa /dev/null +is used instead of a socket. +.It Fl v +(verbose) Print additional details. +.It Fl q +Suppress all output from the +.Cm add , change , delete , +and +.Cm flush +commands. +.El +.Pp +The +.Nm +utility provides the following commands: +.Pp +.Bl -tag -width Fl -compact +.It Cm add +Add a route. +.It Cm flush +Remove all routes. +.It Cm delete +Delete a specific route. +.It Cm del +Another name for the +.Cm delete +command. +.It Cm change +Change aspects of a route (such as its gateway). +.It Cm get +Lookup and display the route for a destination. +.It Cm monitor +Continuously report any changes to the routing information base, +routing lookup misses, or suspected network partitionings. +.El +.Pp +The monitor command has the syntax: +.Pp +.Bd -ragged -offset indent -compact +.Nm +.Op Fl n +.Cm monitor +.Ed +.Pp +The flush command has the syntax: +.Pp +.Bd -ragged -offset indent -compact +.Nm +.Op Fl n +.Cm flush +.Op Ar family +.Ed +.Pp +If the +.Cm flush +command is specified, +.Nm +will ``flush'' the routing tables of all gateway entries. +When the address family may is specified by any of the +.Fl osi , +.Fl xns , +.Fl atalk , +.Fl inet6 , +or +.Fl inet +modifiers, only routes having destinations with addresses in the +delineated family will be deleted. +.Pp +The other commands have the following syntax: +.Pp +.Bd -ragged -offset indent -compact +.Nm +.Op Fl n +.Ar command +.Op Fl net No \&| Fl host +.Ar destination gateway +.Op Ar netmask +.Ed +.Pp +where +.Ar destination +is the destination host or network, +.Ar gateway +is the next-hop intermediary via which packets should be routed. +Routes to a particular host may be distinguished from those to +a network by interpreting the Internet address specified as the +.Ar destination +argument. +The optional modifiers +.Fl net +and +.Fl host +force the destination to be interpreted as a network or a host, respectively. +Otherwise, if the +.Ar destination +has a +.Dq local address part +of +INADDR_ANY +.Pq Li 0.0.0.0 , +or if the +.Ar destination +is the symbolic name of a network, then the route is +assumed to be to a network; otherwise, it is presumed to be a +route to a host. +Optionally, the +.Ar destination +could also be specified in the +.Ar net Ns / Ns Ar bits +format. +.Pp +For example, +.Li 128.32 +is interpreted as +.Fl host Li 128.0.0.32 ; +.Li 128.32.130 +is interpreted as +.Fl host Li 128.32.0.130 ; +.Fl net Li 128.32 +is interpreted as +.Li 128.32.0.0; +.Fl net Li 128.32.130 +is interpreted as +.Li 128.32.130.0; +and +.Li 192.168.64/20 +is interpreted as +.Fl net Li 192.168.64 Fl netmask Li 255.255.240.0 . +.Pp +A +.Ar destination +of +.Ar default +is a synonym for +.Fl net Li 0.0.0.0 , +which is the default route. +.Pp +If the destination is directly reachable +via an interface requiring +no intermediary system to act as a gateway, the +.Fl interface +modifier should be specified; +the gateway given is the address of this host on the common network, +indicating the interface to be used for transmission. +Alternately, if the interface is point to point the name of the interface +itself may be given, in which case the route remains valid even +if the local or remote addresses change. +.Pp +The optional modifiers +.Fl xns , +.Fl osi , +.Fl atalk , +and +.Fl link +specify that all subsequent addresses are in the +.Tn XNS , +.Tn OSI , +or +.Tn AppleTalk +address families, +or are specified as link-level addresses, +and the names must be numeric specifications rather than +symbolic names. +.Pp +The optional +.Fl netmask +modifier is intended +to achieve the effect of an +.Tn OSI +.Tn ESIS +redirect with the netmask option, +or to manually add subnet routes with +netmasks different from that of the implied network interface +(as would otherwise be communicated using the OSPF or ISIS routing protocols). +One specifies an additional ensuing address parameter +(to be interpreted as a network mask). +The implicit network mask generated in the AF_INET case +can be overridden by making sure this option follows the destination parameter. +.Pp +For +.Dv AF_INET6 , +the +.Fl prefixlen +qualifier +is available instead of the +.Fl mask +qualifier because non-continuous masks are not allowed in IPv6. +For example, +.Fl prefixlen Li 32 +specifies network mask of +.Li ffff:ffff:0000:0000:0000:0000:0000:0000 +to be used. +The default value of prefixlen is 64 to get along with +the aggregatable address. +But 0 is assumed if +.Cm default +is specified. +Note that the qualifier works only for +.Dv AF_INET6 +address family. +.Pp +Routes have associated flags which influence operation of the protocols +when sending to destinations matched by the routes. +These flags may be set (or sometimes cleared) +by indicating the following corresponding modifiers: +.Bd -literal +-xresolve RTF_XRESOLVE - emit mesg on use (for external lookup) +-iface ~RTF_GATEWAY - destination is directly reachable +-static RTF_STATIC - manually added route +-nostatic ~RTF_STATIC - pretend route added by kernel or daemon +-reject RTF_REJECT - emit an ICMP unreachable when matched +-blackhole RTF_BLACKHOLE - silently discard pkts (during updates) +-proto1 RTF_PROTO1 - set protocol specific routing flag #1 +-proto2 RTF_PROTO2 - set protocol specific routing flag #2 +.Ed +.Pp +The optional modifiers +.Fl rtt , +.Fl rttvar , +.Fl sendpipe , +.Fl recvpipe , +.Fl mtu , +.Fl hopcount , +.Fl expire , +and +.Fl ssthresh +provide initial values to quantities maintained in the routing entry +by transport level protocols, such as TCP or TP4. +These may be individually locked by preceding each such modifier to +be locked by +the +.Fl lock +meta-modifier, or one can +specify that all ensuing metrics may be locked by the +.Fl lockrest +meta-modifier. +.Pp +In a +.Cm change +or +.Cm add +command where the destination and gateway are not sufficient to specify +the route (as in the +.Tn ISO +case where several interfaces may have the +same address), the +.Fl ifp +or +.Fl ifa +modifiers may be used to determine the interface or interface address. +.Pp +All symbolic names specified for a +.Ar destination +or +.Ar gateway +are looked up first as a host name using +.Xr gethostbyname 3 . +If this lookup fails, +.Xr getnetbyname 3 +is then used to interpret the name as that of a network. +.Pp +The +.Nm +utility uses a routing socket and the new message types +.Dv RTM_ADD , RTM_DELETE , RTM_GET , +and +.Dv RTM_CHANGE . +As such, only the super-user may modify +the routing tables. +.Sh EXIT STATUS +.Ex -std +.Sh DIAGNOSTICS +.Bl -diag +.It "add [host \&| network ] %s: gateway %s flags %x" +The specified route is being added to the tables. +The +values printed are from the routing table entry supplied +in the +.Xr ioctl 2 +call. +If the gateway address used was not the primary address of the gateway +(the first one returned by +.Xr gethostbyname 3 ) , +the gateway address is printed numerically as well as symbolically. +.It "delete [ host \&| network ] %s: gateway %s flags %x" +As above, but when deleting an entry. +.It "%s %s done" +When the +.Cm flush +command is specified, each routing table entry deleted +is indicated with a message of this form. +.It "Network is unreachable" +An attempt to add a route failed because the gateway listed was not +on a directly-connected network. +The next-hop gateway must be given. +.It "not in table" +A delete operation was attempted for an entry which +was not present in the tables. +.It "routing table overflow" +An add operation was attempted, but the system was +low on resources and was unable to allocate memory +to create the new entry. +.It "gateway uses the same route" +A +.Cm change +operation resulted in a route whose gateway uses the +same route as the one being changed. +The next-hop gateway should be reachable through a different route. +.El +.Sh SEE ALSO +.\".Xr esis 4 , +.Xr netintro 4 , +.Xr route 4 , +.Xr arp 8 , +.Xr IPXrouted 8 , +.Xr routed 8 +.\".Xr XNSrouted 8 +.Sh HISTORY +The +.Nm +utility appeared in +.Bx 4.2 . +.Sh BUGS +The first paragraph may have slightly exaggerated +.Xr routed 8 Ns 's +abilities. +.Pp +Currently, routes with the +.Dv RTF_BLACKHOLE +flag set need to have the gateway set to an instance of the +.Xr lo 4 +driver, using the +.Fl iface +option, for the flag to have any effect; unless IP fast forwarding +is enabled, in which case the meaning of the flag will always +be honored. diff --git a/freebsd-userspace/commands/sbin/route/route.c b/freebsd-userspace/commands/sbin/route/route.c new file mode 100644 index 00000000..5dfad78b --- /dev/null +++ b/freebsd-userspace/commands/sbin/route/route.c @@ -0,0 +1,1681 @@ +/* + * Copyright (c) 1983, 1989, 1991, 1993 + * The Regents of the University of California. All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * 4. Neither the name of the University nor the names of its contributors + * may be used to endorse or promote products derived from this software + * without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE + * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE + * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL + * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS + * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) + * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT + * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY + * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF + * SUCH DAMAGE. + */ + +#ifndef lint +static const char copyright[] = +"@(#) Copyright (c) 1983, 1989, 1991, 1993\n\ + The Regents of the University of California. All rights reserved.\n"; +#endif /* not lint */ + +#ifndef lint +#if 0 +static char sccsid[] = "@(#)route.c 8.6 (Berkeley) 4/28/95"; +#endif +static const char rcsid[] = + "$FreeBSD$"; +#endif /* not lint */ + +#include +#include +#include +#include +#include +#include + +#include +#include +#include +#include + +#include +#include + +#include +#include + +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include + +#ifdef __rtems__ +#ifndef _PATH_DEVNULL +#define _PATH_DEVNULL "/dev/null" +#endif +#endif + +struct keytab { + char *kt_cp; + int kt_i; +} keywords[] = { +#include "keywords.h" + {0, 0} +}; + +struct ortentry route; +union sockunion { + struct sockaddr sa; + struct sockaddr_in sin; +#ifdef INET6 + struct sockaddr_in6 sin6; +#endif + struct sockaddr_at sat; + struct sockaddr_dl sdl; + struct sockaddr_inarp sinarp; + struct sockaddr_storage ss; /* added to avoid memory overrun */ +} so_dst, so_gate, so_mask, so_genmask, so_ifa, so_ifp; + +typedef union sockunion *sup; +int pid, rtm_addrs; +int s; +int forcehost, forcenet, doflush, nflag, af, qflag, tflag, keyword(); +int iflag, verbose, aflen = sizeof (struct sockaddr_in); +int locking, lockrest, debugonly; +struct rt_metrics rt_metrics; +u_long rtm_inits; +uid_t uid; +int atalk_aton(const char *, struct at_addr *); +char *atalk_ntoa(struct at_addr); +const char *routename(), *netname(); +void flushroutes(), newroute(), monitor(), sockaddr(), sodump(), bprintf(); +void print_getmsg(), print_rtmsg(), pmsg_common(), pmsg_addrs(), mask_addr(); +#ifdef INET6 +static int inet6_makenetandmask(struct sockaddr_in6 *, char *); +#endif +int getaddr(), rtmsg(), x25_makemask(); +int prefixlen(); +extern char *iso_ntoa(); + +void usage(const char *) __dead2; + +void +usage(cp) + const char *cp; +{ + if (cp) + warnx("bad keyword: %s", cp); + (void) fprintf(stderr, + "usage: route [-dnqtv] command [[modifiers] args]\n"); + exit(EX_USAGE); + /* NOTREACHED */ +} + +int +route_main(argc, argv) + int argc; + char **argv; +{ + int ch; + + if (argc < 2) + usage((char *)NULL); + + while ((ch = getopt(argc, argv, "nqdtv")) != -1) + switch(ch) { + case 'n': + nflag = 1; + break; + case 'q': + qflag = 1; + break; + case 'v': + verbose = 1; + break; + case 't': + tflag = 1; + break; + case 'd': + debugonly = 1; + break; + case '?': + default: + usage((char *)NULL); + } + argc -= optind; + argv += optind; + + pid = getpid(); + uid = geteuid(); + if (tflag) + s = open(_PATH_DEVNULL, O_WRONLY, 0); + else + s = socket(PF_ROUTE, SOCK_RAW, 0); + if (s < 0) + err(EX_OSERR, "socket"); + if (*argv) + switch (keyword(*argv)) { + case K_GET: + case K_SHOW: + uid = 0; + /* FALLTHROUGH */ + + case K_CHANGE: + case K_ADD: + case K_DEL: + case K_DELETE: + newroute(argc, argv); + /* NOTREACHED */ + + case K_MONITOR: + monitor(); + /* NOTREACHED */ + + case K_FLUSH: + flushroutes(argc, argv); + exit(0); + /* NOTREACHED */ + } + usage(*argv); + /* NOTREACHED */ +} + +/* + * Purge all entries in the routing tables not + * associated with network interfaces. + */ +void +flushroutes(argc, argv) + int argc; + char *argv[]; +{ + size_t needed; + int mib[6], rlen, seqno, count = 0; + char *buf, *next, *lim; + struct rt_msghdr *rtm; + + if (uid && !debugonly) { + errx(EX_NOPERM, "must be root to alter routing table"); + } + shutdown(s, SHUT_RD); /* Don't want to read back our messages */ + if (argc > 1) { + argv++; + if (argc == 2 && **argv == '-') + switch (keyword(*argv + 1)) { + case K_INET: + af = AF_INET; + break; +#ifdef INET6 + case K_INET6: + af = AF_INET6; + break; +#endif + case K_ATALK: + af = AF_APPLETALK; + break; + case K_LINK: + af = AF_LINK; + break; + default: + goto bad; + } else +bad: usage(*argv); + } +retry: + mib[0] = CTL_NET; + mib[1] = PF_ROUTE; + mib[2] = 0; /* protocol */ + mib[3] = 0; /* wildcard address family */ + mib[4] = NET_RT_DUMP; + mib[5] = 0; /* no flags */ + if (sysctl(mib, 6, NULL, &needed, NULL, 0) < 0) + err(EX_OSERR, "route-sysctl-estimate"); + if ((buf = malloc(needed)) == NULL) + errx(EX_OSERR, "malloc failed"); + if (sysctl(mib, 6, buf, &needed, NULL, 0) < 0) { + if (errno == ENOMEM && count++ < 10) { + warnx("Routing table grew, retrying"); + sleep(1); + free(buf); + goto retry; + } + err(EX_OSERR, "route-sysctl-get"); + } + lim = buf + needed; + if (verbose) + (void) printf("Examining routing table from sysctl\n"); + seqno = 0; /* ??? */ + for (next = buf; next < lim; next += rtm->rtm_msglen) { + rtm = (struct rt_msghdr *)next; + if (verbose) + print_rtmsg(rtm, rtm->rtm_msglen); + if ((rtm->rtm_flags & RTF_GATEWAY) == 0) + continue; + if (af) { + struct sockaddr *sa = (struct sockaddr *)(rtm + 1); + + if (sa->sa_family != af) + continue; + } + if (debugonly) + continue; + rtm->rtm_type = RTM_DELETE; + rtm->rtm_seq = seqno; + rlen = write(s, next, rtm->rtm_msglen); + if (rlen < 0 && errno == EPERM) + err(1, "write to routing socket"); + if (rlen < (int)rtm->rtm_msglen) { + warn("write to routing socket"); + (void) printf("got only %d for rlen\n", rlen); + free(buf); + goto retry; + break; + } + seqno++; + if (qflag) + continue; + if (verbose) + print_rtmsg(rtm, rlen); + else { + struct sockaddr *sa = (struct sockaddr *)(rtm + 1); + (void) printf("%-20.20s ", rtm->rtm_flags & RTF_HOST ? + routename(sa) : netname(sa)); + sa = (struct sockaddr *)(SA_SIZE(sa) + (char *)sa); + (void) printf("%-20.20s ", routename(sa)); + (void) printf("done\n"); + } + } +} + +const char * +routename(sa) + struct sockaddr *sa; +{ + char *cp; + static char line[MAXHOSTNAMELEN + 1]; + struct hostent *hp; + static char domain[MAXHOSTNAMELEN + 1]; + static int first = 1, n; + + if (first) { + first = 0; + if (gethostname(domain, MAXHOSTNAMELEN) == 0 && + (cp = strchr(domain, '.'))) { + domain[MAXHOSTNAMELEN] = '\0'; + (void) strcpy(domain, cp + 1); + } else + domain[0] = 0; + } + + if (sa->sa_len == 0) + strcpy(line, "default"); + else switch (sa->sa_family) { + + case AF_INET: + { struct in_addr in; + in = ((struct sockaddr_in *)sa)->sin_addr; + + cp = 0; + if (in.s_addr == INADDR_ANY || sa->sa_len < 4) + cp = "default"; + if (cp == 0 && !nflag) { + hp = gethostbyaddr((char *)&in, sizeof (struct in_addr), + AF_INET); + if (hp) { + if ((cp = strchr(hp->h_name, '.')) && + !strcmp(cp + 1, domain)) + *cp = 0; + cp = hp->h_name; + } + } + if (cp) { + strncpy(line, cp, sizeof(line) - 1); + line[sizeof(line) - 1] = '\0'; + } else + (void) sprintf(line, "%s", inet_ntoa(in)); + break; + } + +#ifdef INET6 + case AF_INET6: + { + struct sockaddr_in6 sin6; /* use static var for safety */ + int niflags = 0; + + memset(&sin6, 0, sizeof(sin6)); + memcpy(&sin6, sa, sa->sa_len); + sin6.sin6_len = sizeof(struct sockaddr_in6); + sin6.sin6_family = AF_INET6; +#ifdef __KAME__ + if (sa->sa_len == sizeof(struct sockaddr_in6) && + (IN6_IS_ADDR_LINKLOCAL(&sin6.sin6_addr) || + IN6_IS_ADDR_MC_LINKLOCAL(&sin6.sin6_addr)) && + sin6.sin6_scope_id == 0) { + sin6.sin6_scope_id = + ntohs(*(u_int16_t *)&sin6.sin6_addr.s6_addr[2]); + sin6.sin6_addr.s6_addr[2] = 0; + sin6.sin6_addr.s6_addr[3] = 0; + } +#endif + if (nflag) + niflags |= NI_NUMERICHOST; + if (getnameinfo((struct sockaddr *)&sin6, sin6.sin6_len, + line, sizeof(line), NULL, 0, niflags) != 0) + strncpy(line, "invalid", sizeof(line)); + + return(line); + } +#endif + + case AF_APPLETALK: + (void) snprintf(line, sizeof(line), "atalk %s", + atalk_ntoa(((struct sockaddr_at *)sa)->sat_addr)); + break; + + case AF_LINK: + return (link_ntoa((struct sockaddr_dl *)sa)); + + default: + { u_short *s = (u_short *)sa; + u_short *slim = s + ((sa->sa_len + 1) >> 1); + char *cp = line + sprintf(line, "(%d)", sa->sa_family); + char *cpe = line + sizeof(line); + + while (++s < slim && cp < cpe) /* start with sa->sa_data */ + if ((n = snprintf(cp, cpe - cp, " %x", *s)) > 0) + cp += n; + else + *cp = '\0'; + break; + } + } + return (line); +} + +/* + * Return the name of the network whose address is given. + * The address is assumed to be that of a net or subnet, not a host. + */ +const char * +netname(sa) + struct sockaddr *sa; +{ + char *cp = 0; + static char line[MAXHOSTNAMELEN + 1]; + struct netent *np = 0; + u_long net, mask; + u_long i; + int n, subnetshift; + + switch (sa->sa_family) { + + case AF_INET: + { struct in_addr in; + in = ((struct sockaddr_in *)sa)->sin_addr; + + i = in.s_addr = ntohl(in.s_addr); + if (in.s_addr == 0) + cp = "default"; + else if (!nflag) { + if (IN_CLASSA(i)) { + mask = IN_CLASSA_NET; + subnetshift = 8; + } else if (IN_CLASSB(i)) { + mask = IN_CLASSB_NET; + subnetshift = 8; + } else { + mask = IN_CLASSC_NET; + subnetshift = 4; + } + /* + * If there are more bits than the standard mask + * would suggest, subnets must be in use. + * Guess at the subnet mask, assuming reasonable + * width subnet fields. + */ + while (in.s_addr &~ mask) + mask = (long)mask >> subnetshift; + net = in.s_addr & mask; + while ((mask & 1) == 0) + mask >>= 1, net >>= 1; + np = getnetbyaddr(net, AF_INET); + if (np) + cp = np->n_name; + } +#define C(x) (unsigned)((x) & 0xff) + if (cp) + strncpy(line, cp, sizeof(line)); + else if ((in.s_addr & 0xffffff) == 0) + (void) sprintf(line, "%u", C(in.s_addr >> 24)); + else if ((in.s_addr & 0xffff) == 0) + (void) sprintf(line, "%u.%u", C(in.s_addr >> 24), + C(in.s_addr >> 16)); + else if ((in.s_addr & 0xff) == 0) + (void) sprintf(line, "%u.%u.%u", C(in.s_addr >> 24), + C(in.s_addr >> 16), C(in.s_addr >> 8)); + else + (void) sprintf(line, "%u.%u.%u.%u", C(in.s_addr >> 24), + C(in.s_addr >> 16), C(in.s_addr >> 8), + C(in.s_addr)); +#undef C + break; + } + +#ifdef INET6 + case AF_INET6: + { + struct sockaddr_in6 sin6; /* use static var for safety */ + int niflags = 0; + + memset(&sin6, 0, sizeof(sin6)); + memcpy(&sin6, sa, sa->sa_len); + sin6.sin6_len = sizeof(struct sockaddr_in6); + sin6.sin6_family = AF_INET6; +#ifdef __KAME__ + if (sa->sa_len == sizeof(struct sockaddr_in6) && + (IN6_IS_ADDR_LINKLOCAL(&sin6.sin6_addr) || + IN6_IS_ADDR_MC_LINKLOCAL(&sin6.sin6_addr)) && + sin6.sin6_scope_id == 0) { + sin6.sin6_scope_id = + ntohs(*(u_int16_t *)&sin6.sin6_addr.s6_addr[2]); + sin6.sin6_addr.s6_addr[2] = 0; + sin6.sin6_addr.s6_addr[3] = 0; + } +#endif + if (nflag) + niflags |= NI_NUMERICHOST; + if (getnameinfo((struct sockaddr *)&sin6, sin6.sin6_len, + line, sizeof(line), NULL, 0, niflags) != 0) + strncpy(line, "invalid", sizeof(line)); + + return(line); + } +#endif + + case AF_APPLETALK: + (void) snprintf(line, sizeof(line), "atalk %s", + atalk_ntoa(((struct sockaddr_at *)sa)->sat_addr)); + break; + + case AF_LINK: + return (link_ntoa((struct sockaddr_dl *)sa)); + + + default: + { u_short *s = (u_short *)sa->sa_data; + u_short *slim = s + ((sa->sa_len + 1)>>1); + char *cp = line + sprintf(line, "af %d:", sa->sa_family); + char *cpe = line + sizeof(line); + + while (s < slim && cp < cpe) + if ((n = snprintf(cp, cpe - cp, " %x", *s++)) > 0) + cp += n; + else + *cp = '\0'; + break; + } + } + return (line); +} + +void +set_metric(value, key) + char *value; + int key; +{ + int flag = 0; + u_long noval, *valp = &noval; + + switch (key) { +#define caseof(x, y, z) case x: valp = &rt_metrics.z; flag = y; break + caseof(K_MTU, RTV_MTU, rmx_mtu); + caseof(K_HOPCOUNT, RTV_HOPCOUNT, rmx_hopcount); + caseof(K_EXPIRE, RTV_EXPIRE, rmx_expire); + caseof(K_RECVPIPE, RTV_RPIPE, rmx_recvpipe); + caseof(K_SENDPIPE, RTV_SPIPE, rmx_sendpipe); + caseof(K_SSTHRESH, RTV_SSTHRESH, rmx_ssthresh); + caseof(K_RTT, RTV_RTT, rmx_rtt); + caseof(K_RTTVAR, RTV_RTTVAR, rmx_rttvar); + caseof(K_WEIGHT, RTV_WEIGHT, rmx_weight); + } + rtm_inits |= flag; + if (lockrest || locking) + rt_metrics.rmx_locks |= flag; + if (locking) + locking = 0; + *valp = atoi(value); +} + +void +newroute(argc, argv) + int argc; + char **argv; +{ + char *cmd, *dest = "", *gateway = "", *err; + int ishost = 0, proxy = 0, ret, attempts, oerrno, flags = RTF_STATIC; + int key; + struct hostent *hp = 0; + + if (uid) { + errx(EX_NOPERM, "must be root to alter routing table"); + } + cmd = argv[0]; + if (*cmd != 'g' && *cmd != 's') + shutdown(s, SHUT_RD); /* Don't want to read back our messages */ + + while (--argc > 0) { + if (**(++argv)== '-') { + switch (key = keyword(1 + *argv)) { + case K_LINK: + af = AF_LINK; + aflen = sizeof(struct sockaddr_dl); + break; + case K_INET: + af = AF_INET; + aflen = sizeof(struct sockaddr_in); + break; +#ifdef INET6 + case K_INET6: + af = AF_INET6; + aflen = sizeof(struct sockaddr_in6); + break; +#endif + case K_ATALK: + af = AF_APPLETALK; + aflen = sizeof(struct sockaddr_at); + break; + case K_SA: + af = PF_ROUTE; + aflen = sizeof(union sockunion); + break; + case K_IFACE: + case K_INTERFACE: + iflag++; + break; + case K_NOSTATIC: + flags &= ~RTF_STATIC; + break; + case K_LOCK: + locking = 1; + break; + case K_LOCKREST: + lockrest = 1; + break; + case K_HOST: + forcehost++; + break; + case K_REJECT: + flags |= RTF_REJECT; + break; + case K_BLACKHOLE: + flags |= RTF_BLACKHOLE; + break; + case K_PROTO1: + flags |= RTF_PROTO1; + break; + case K_PROTO2: + flags |= RTF_PROTO2; + break; + case K_PROXY: + proxy = 1; + break; + case K_XRESOLVE: + flags |= RTF_XRESOLVE; + break; + case K_STATIC: + flags |= RTF_STATIC; + break; + case K_STICKY: + flags |= RTF_STICKY; + break; + case K_NOSTICK: + flags &= ~RTF_STICKY; + break; + case K_IFA: + if (!--argc) + usage((char *)NULL); + (void) getaddr(RTA_IFA, *++argv, 0); + break; + case K_IFP: + if (!--argc) + usage((char *)NULL); + (void) getaddr(RTA_IFP, *++argv, 0); + break; + case K_GENMASK: + if (!--argc) + usage((char *)NULL); + (void) getaddr(RTA_GENMASK, *++argv, 0); + break; + case K_GATEWAY: + if (!--argc) + usage((char *)NULL); + (void) getaddr(RTA_GATEWAY, *++argv, 0); + break; + case K_DST: + if (!--argc) + usage((char *)NULL); + ishost = getaddr(RTA_DST, *++argv, &hp); + dest = *argv; + break; + case K_NETMASK: + if (!--argc) + usage((char *)NULL); + (void) getaddr(RTA_NETMASK, *++argv, 0); + /* FALLTHROUGH */ + case K_NET: + forcenet++; + break; + case K_PREFIXLEN: + if (!--argc) + usage((char *)NULL); + if (prefixlen(*++argv) == -1) { + forcenet = 0; + ishost = 1; + } else { + forcenet = 1; + ishost = 0; + } + break; + case K_MTU: + case K_HOPCOUNT: + case K_EXPIRE: + case K_RECVPIPE: + case K_SENDPIPE: + case K_SSTHRESH: + case K_RTT: + case K_RTTVAR: + case K_WEIGHT: + if (!--argc) + usage((char *)NULL); + set_metric(*++argv, key); + break; + default: + usage(1+*argv); + } + } else { + if ((rtm_addrs & RTA_DST) == 0) { + dest = *argv; + ishost = getaddr(RTA_DST, *argv, &hp); + } else if ((rtm_addrs & RTA_GATEWAY) == 0) { + gateway = *argv; + (void) getaddr(RTA_GATEWAY, *argv, &hp); + } else { + (void) getaddr(RTA_NETMASK, *argv, 0); + forcenet = 1; + } + } + } + if (forcehost) { + ishost = 1; +#ifdef INET6 + if (af == AF_INET6) { + rtm_addrs &= ~RTA_NETMASK; + memset((void *)&so_mask, 0, sizeof(so_mask)); + } +#endif + } + if (forcenet) + ishost = 0; + flags |= RTF_UP; + if (ishost) + flags |= RTF_HOST; + if (iflag == 0) + flags |= RTF_GATEWAY; + if (proxy) { + so_dst.sinarp.sin_other = SIN_PROXY; + flags |= RTF_ANNOUNCE; + } + for (attempts = 1; ; attempts++) { + errno = 0; + if ((ret = rtmsg(*cmd, flags)) == 0) + break; + if (errno != ENETUNREACH && errno != ESRCH) + break; + if (af == AF_INET && *gateway && hp && hp->h_addr_list[1]) { + hp->h_addr_list++; + memmove(&so_gate.sin.sin_addr, hp->h_addr_list[0], + MIN(hp->h_length, sizeof(so_gate.sin.sin_addr))); + } else + break; + } + if (*cmd == 'g' || *cmd == 's') + exit(ret != 0); + if (!qflag) { + oerrno = errno; + (void) printf("%s %s %s", cmd, ishost? "host" : "net", dest); + if (*gateway) { + (void) printf(": gateway %s", gateway); + if (attempts > 1 && ret == 0 && af == AF_INET) + (void) printf(" (%s)", + inet_ntoa(((struct sockaddr_in *)&route.rt_gateway)->sin_addr)); + } + if (ret == 0) { + (void) printf("\n"); + } else { + switch (oerrno) { + case ESRCH: + err = "not in table"; + break; + case EBUSY: + err = "entry in use"; + break; + case ENOBUFS: + err = "not enough memory"; + break; + case EADDRINUSE: + /* handle recursion avoidance in rt_setgate() */ + err = "gateway uses the same route"; + break; + case EEXIST: + err = "route already in table"; + break; + default: + err = strerror(oerrno); + break; + } + (void) printf(": %s\n", err); + } + } + exit(ret != 0); +} + +void +inet_makenetandmask(net, sin, bits) + u_long net, bits; + struct sockaddr_in *sin; +{ + u_long addr, mask = 0; + char *cp; + + rtm_addrs |= RTA_NETMASK; + /* + * XXX: This approach unable to handle 0.0.0.1/32 correctly + * as inet_network() converts 0.0.0.1 and 1 equally. + */ + if (net <= 0xff) + addr = net << IN_CLASSA_NSHIFT; + else if (net <= 0xffff) + addr = net << IN_CLASSB_NSHIFT; + else if (net <= 0xffffff) + addr = net << IN_CLASSC_NSHIFT; + else + addr = net; + /* + * If no /xx was specified we must cacluate the + * CIDR address. + */ + if ((bits == 0) && (addr != 0)) { + u_long i, j; + for(i=0,j=0xff; i<4; i++) { + if (addr & j) { + break; + } + j <<= 8; + } + /* i holds the first non zero bit */ + bits = 32 - (i*8); + } + if (bits != 0) + mask = 0xffffffff << (32 - bits); + + sin->sin_addr.s_addr = htonl(addr); + sin = &so_mask.sin; + sin->sin_addr.s_addr = htonl(mask); + sin->sin_len = 0; + sin->sin_family = 0; + cp = (char *)(&sin->sin_addr + 1); + while (*--cp == 0 && cp > (char *)sin) + ; + sin->sin_len = 1 + cp - (char *)sin; +} + +#ifdef INET6 +/* + * XXX the function may need more improvement... + */ +static int +inet6_makenetandmask(sin6, plen) + struct sockaddr_in6 *sin6; + char *plen; +{ + struct in6_addr in6; + + if (!plen) { + if (IN6_IS_ADDR_UNSPECIFIED(&sin6->sin6_addr) && + sin6->sin6_scope_id == 0) { + plen = "0"; + } else if ((sin6->sin6_addr.s6_addr[0] & 0xe0) == 0x20) { + /* aggregatable global unicast - RFC2374 */ + memset(&in6, 0, sizeof(in6)); + if (!memcmp(&sin6->sin6_addr.s6_addr[8], + &in6.s6_addr[8], 8)) + plen = "64"; + } + } + + if (!plen || strcmp(plen, "128") == 0) + return 1; + rtm_addrs |= RTA_NETMASK; + (void)prefixlen(plen); + return 0; +} +#endif + +/* + * Interpret an argument as a network address of some kind, + * returning 1 if a host address, 0 if a network address. + */ +int +getaddr(which, s, hpp) + int which; + char *s; + struct hostent **hpp; +{ + sup su; + struct hostent *hp; + struct netent *np; + u_long val; + char *q; + int afamily; /* local copy of af so we can change it */ + + if (af == 0) { + af = AF_INET; + aflen = sizeof(struct sockaddr_in); + } + afamily = af; + rtm_addrs |= which; + switch (which) { + case RTA_DST: + su = &so_dst; + break; + case RTA_GATEWAY: + su = &so_gate; + if (iflag) { + struct ifaddrs *ifap, *ifa; + struct sockaddr_dl *sdl = NULL; + + if (getifaddrs(&ifap)) + err(1, "getifaddrs"); + + for (ifa = ifap; ifa; ifa = ifa->ifa_next) { + if (ifa->ifa_addr->sa_family != AF_LINK) + continue; + + if (strcmp(s, ifa->ifa_name)) + continue; + + sdl = (struct sockaddr_dl *)ifa->ifa_addr; + } + /* If we found it, then use it */ + if (sdl) { + /* + * Copy is safe since we have a + * sockaddr_storage member in sockunion{}. + * Note that we need to copy before calling + * freeifaddrs(). + */ + memcpy(&su->sdl, sdl, sdl->sdl_len); + } + freeifaddrs(ifap); + if (sdl) + return(1); + } + break; + case RTA_NETMASK: + su = &so_mask; + break; + case RTA_GENMASK: + su = &so_genmask; + break; + case RTA_IFP: + su = &so_ifp; + afamily = AF_LINK; + break; + case RTA_IFA: + su = &so_ifa; + break; + default: + usage("internal error"); + /*NOTREACHED*/ + } + su->sa.sa_len = aflen; + su->sa.sa_family = afamily; /* cases that don't want it have left already */ + if (strcmp(s, "default") == 0) { + /* + * Default is net 0.0.0.0/0 + */ + switch (which) { + case RTA_DST: + forcenet++; +#if 0 + bzero(su, sizeof(*su)); /* for readability */ +#endif + (void) getaddr(RTA_NETMASK, s, 0); + break; +#if 0 + case RTA_NETMASK: + case RTA_GENMASK: + bzero(su, sizeof(*su)); /* for readability */ +#endif + } + return (0); + } + switch (afamily) { +#ifdef INET6 + case AF_INET6: + { + struct addrinfo hints, *res; + int ecode; + + q = NULL; + if (which == RTA_DST && (q = strchr(s, '/')) != NULL) + *q = '\0'; + memset(&hints, 0, sizeof(hints)); + hints.ai_family = afamily; /*AF_INET6*/ + hints.ai_socktype = SOCK_DGRAM; /*dummy*/ + ecode = getaddrinfo(s, NULL, &hints, &res); + if (ecode != 0 || res->ai_family != AF_INET6 || + res->ai_addrlen != sizeof(su->sin6)) { + (void) fprintf(stderr, "%s: %s\n", s, + gai_strerror(ecode)); + exit(1); + } + memcpy(&su->sin6, res->ai_addr, sizeof(su->sin6)); +#ifdef __KAME__ + if ((IN6_IS_ADDR_LINKLOCAL(&su->sin6.sin6_addr) || + IN6_IS_ADDR_MC_LINKLOCAL(&su->sin6.sin6_addr)) && + su->sin6.sin6_scope_id) { + *(u_int16_t *)&su->sin6.sin6_addr.s6_addr[2] = + htons(su->sin6.sin6_scope_id); + su->sin6.sin6_scope_id = 0; + } +#endif + freeaddrinfo(res); + if (q != NULL) + *q++ = '/'; + if (which == RTA_DST) + return (inet6_makenetandmask(&su->sin6, q)); + return (0); + } +#endif /* INET6 */ + + case AF_APPLETALK: + if (!atalk_aton(s, &su->sat.sat_addr)) + errx(EX_NOHOST, "bad address: %s", s); + rtm_addrs |= RTA_NETMASK; + return(forcehost || su->sat.sat_addr.s_node != 0); + + case AF_LINK: + link_addr(s, &su->sdl); + return (1); + + + case PF_ROUTE: + su->sa.sa_len = sizeof(*su); + sockaddr(s, &su->sa); + return (1); + + case AF_INET: + default: + break; + } + + if (hpp == NULL) + hpp = &hp; + *hpp = NULL; + + q = strchr(s,'/'); + if (q && which == RTA_DST) { + *q = '\0'; + if ((val = inet_network(s)) != INADDR_NONE) { + inet_makenetandmask( + val, &su->sin, strtoul(q+1, 0, 0)); + return (0); + } + *q = '/'; + } + if ((which != RTA_DST || forcenet == 0) && + inet_aton(s, &su->sin.sin_addr)) { + val = su->sin.sin_addr.s_addr; + if (which != RTA_DST || forcehost || + inet_lnaof(su->sin.sin_addr) != INADDR_ANY) + return (1); + else { + val = ntohl(val); + goto netdone; + } + } + if (which == RTA_DST && forcehost == 0 && + ((val = inet_network(s)) != INADDR_NONE || + ((np = getnetbyname(s)) != NULL && (val = np->n_net) != 0))) { +netdone: + inet_makenetandmask(val, &su->sin, 0); + return (0); + } + hp = gethostbyname(s); + if (hp) { + *hpp = hp; + su->sin.sin_family = hp->h_addrtype; + memmove((char *)&su->sin.sin_addr, hp->h_addr, + MIN(hp->h_length, sizeof(su->sin.sin_addr))); + return (1); + } + errx(EX_NOHOST, "bad address: %s", s); +} + +int +prefixlen(s) + char *s; +{ + int len = atoi(s), q, r; + int max; + char *p; + + rtm_addrs |= RTA_NETMASK; + switch (af) { +#ifdef INET6 + case AF_INET6: + max = 128; + p = (char *)&so_mask.sin6.sin6_addr; + break; +#endif + case AF_INET: + max = 32; + p = (char *)&so_mask.sin.sin_addr; + break; + default: + (void) fprintf(stderr, "prefixlen not supported in this af\n"); + exit(1); + /*NOTREACHED*/ + } + + if (len < 0 || max < len) { + (void) fprintf(stderr, "%s: bad value\n", s); + exit(1); + } + + q = len >> 3; + r = len & 7; + so_mask.sa.sa_family = af; + so_mask.sa.sa_len = aflen; + memset((void *)p, 0, max / 8); + if (q > 0) + memset((void *)p, 0xff, q); + if (r > 0) + *((u_char *)p + q) = (0xff00 >> r) & 0xff; + if (len == max) + return -1; + else + return len; +} + +void +interfaces() +{ + size_t needed; + int mib[6]; + char *buf, *lim, *next, count = 0; + struct rt_msghdr *rtm; + +retry2: + mib[0] = CTL_NET; + mib[1] = PF_ROUTE; + mib[2] = 0; /* protocol */ + mib[3] = 0; /* wildcard address family */ + mib[4] = NET_RT_IFLIST; + mib[5] = 0; /* no flags */ + if (sysctl(mib, 6, NULL, &needed, NULL, 0) < 0) + err(EX_OSERR, "route-sysctl-estimate"); + if ((buf = malloc(needed)) == NULL) + errx(EX_OSERR, "malloc failed"); + if (sysctl(mib, 6, buf, &needed, NULL, 0) < 0) { + if (errno == ENOMEM && count++ < 10) { + warnx("Routing table grew, retrying"); + sleep(1); + free(buf); + goto retry2; + } + err(EX_OSERR, "actual retrieval of interface table"); + } + lim = buf + needed; + for (next = buf; next < lim; next += rtm->rtm_msglen) { + rtm = (struct rt_msghdr *)next; + print_rtmsg(rtm, rtm->rtm_msglen); + } +} + +void +monitor() +{ + int n; + char msg[2048]; + + verbose = 1; + if (debugonly) { + interfaces(); + exit(0); + } + for(;;) { + time_t now; + n = read(s, msg, 2048); + now = time(NULL); + (void) printf("\ngot message of size %d on %s", n, ctime(&now)); + print_rtmsg((struct rt_msghdr *)msg, n); + } +} + +struct { + struct rt_msghdr m_rtm; + char m_space[512]; +} m_rtmsg; + +int +rtmsg(cmd, flags) + int cmd, flags; +{ + static int seq; + int rlen; + char *cp = m_rtmsg.m_space; + int l; + +#define NEXTADDR(w, u) \ + if (rtm_addrs & (w)) {\ + l = SA_SIZE(&(u.sa)); memmove(cp, &(u), l); cp += l;\ + if (verbose) sodump(&(u),#u);\ + } + + errno = 0; + memset(&m_rtmsg, 0, sizeof(m_rtmsg)); + if (cmd == 'a') + cmd = RTM_ADD; + else if (cmd == 'c') + cmd = RTM_CHANGE; + else if (cmd == 'g' || cmd == 's') { + cmd = RTM_GET; + if (so_ifp.sa.sa_family == 0) { + so_ifp.sa.sa_family = AF_LINK; + so_ifp.sa.sa_len = sizeof(struct sockaddr_dl); + rtm_addrs |= RTA_IFP; + } + } else + cmd = RTM_DELETE; +#define rtm m_rtmsg.m_rtm + rtm.rtm_type = cmd; + rtm.rtm_flags = flags; + rtm.rtm_version = RTM_VERSION; + rtm.rtm_seq = ++seq; + rtm.rtm_addrs = rtm_addrs; + rtm.rtm_rmx = rt_metrics; + rtm.rtm_inits = rtm_inits; + + if (rtm_addrs & RTA_NETMASK) + mask_addr(); + NEXTADDR(RTA_DST, so_dst); + NEXTADDR(RTA_GATEWAY, so_gate); + NEXTADDR(RTA_NETMASK, so_mask); + NEXTADDR(RTA_GENMASK, so_genmask); + NEXTADDR(RTA_IFP, so_ifp); + NEXTADDR(RTA_IFA, so_ifa); + rtm.rtm_msglen = l = cp - (char *)&m_rtmsg; + if (verbose) + print_rtmsg(&rtm, l); + if (debugonly) + return (0); + if ((rlen = write(s, (char *)&m_rtmsg, l)) < 0) { + if (errno == EPERM) + err(1, "writing to routing socket"); + warn("writing to routing socket"); + return (-1); + } + if (cmd == RTM_GET) { + do { + l = read(s, (char *)&m_rtmsg, sizeof(m_rtmsg)); + } while (l > 0 && (rtm.rtm_seq != seq || rtm.rtm_pid != pid)); + if (l < 0) + warn("read from routing socket"); + else + print_getmsg(&rtm, l); + } +#undef rtm + return (0); +} + +void +mask_addr() +{ + int olen = so_mask.sa.sa_len; + char *cp1 = olen + (char *)&so_mask, *cp2; + + for (so_mask.sa.sa_len = 0; cp1 > (char *)&so_mask; ) + if (*--cp1 != 0) { + so_mask.sa.sa_len = 1 + cp1 - (char *)&so_mask; + break; + } + if ((rtm_addrs & RTA_DST) == 0) + return; + switch (so_dst.sa.sa_family) { + case AF_INET: +#ifdef INET6 + case AF_INET6: +#endif + case AF_APPLETALK: + case 0: + return; + } + cp1 = so_mask.sa.sa_len + 1 + (char *)&so_dst; + cp2 = so_dst.sa.sa_len + 1 + (char *)&so_dst; + while (cp2 > cp1) + *--cp2 = 0; + cp2 = so_mask.sa.sa_len + 1 + (char *)&so_mask; + while (cp1 > so_dst.sa.sa_data) + *--cp1 &= *--cp2; +} + +char *msgtypes[] = { + "", + "RTM_ADD: Add Route", + "RTM_DELETE: Delete Route", + "RTM_CHANGE: Change Metrics or flags", + "RTM_GET: Report Metrics", + "RTM_LOSING: Kernel Suspects Partitioning", + "RTM_REDIRECT: Told to use different route", + "RTM_MISS: Lookup failed on this address", + "RTM_LOCK: fix specified metrics", + "RTM_OLDADD: caused by SIOCADDRT", + "RTM_OLDDEL: caused by SIOCDELRT", + "RTM_RESOLVE: Route created by cloning", + "RTM_NEWADDR: address being added to iface", + "RTM_DELADDR: address being removed from iface", + "RTM_IFINFO: iface status change", + "RTM_NEWMADDR: new multicast group membership on iface", + "RTM_DELMADDR: multicast group membership removed from iface", + "RTM_IFANNOUNCE: interface arrival/departure", + 0, +}; + +char metricnames[] = +"\011weight\010rttvar\7rtt\6ssthresh\5sendpipe\4recvpipe\3expire" +"\1mtu"; +char routeflags[] = +"\1UP\2GATEWAY\3HOST\4REJECT\5DYNAMIC\6MODIFIED\7DONE" +"\012XRESOLVE\013LLINFO\014STATIC\015BLACKHOLE" +"\017PROTO2\020PROTO1\021PRCLONING\022WASCLONED\023PROTO3" +"\025PINNED\026LOCAL\027BROADCAST\030MULTICAST\035STICKY"; +char ifnetflags[] = +"\1UP\2BROADCAST\3DEBUG\4LOOPBACK\5PTP\6b6\7RUNNING\010NOARP" +"\011PPROMISC\012ALLMULTI\013OACTIVE\014SIMPLEX\015LINK0\016LINK1" +"\017LINK2\020MULTICAST"; +char addrnames[] = +"\1DST\2GATEWAY\3NETMASK\4GENMASK\5IFP\6IFA\7AUTHOR\010BRD"; + +void +print_rtmsg(rtm, msglen) + struct rt_msghdr *rtm; + int msglen; +{ + struct if_msghdr *ifm; + struct ifa_msghdr *ifam; +#ifdef RTM_NEWMADDR + struct ifma_msghdr *ifmam; +#endif + struct if_announcemsghdr *ifan; + char *state; + + if (verbose == 0) + return; + if (rtm->rtm_version != RTM_VERSION) { + (void) printf("routing message version %d not understood\n", + rtm->rtm_version); + return; + } + if (msgtypes[rtm->rtm_type] != NULL) + (void)printf("%s: ", msgtypes[rtm->rtm_type]); + else + (void)printf("#%d: ", rtm->rtm_type); + (void)printf("len %d, ", rtm->rtm_msglen); + switch (rtm->rtm_type) { + case RTM_IFINFO: + ifm = (struct if_msghdr *)rtm; + (void) printf("if# %d, ", ifm->ifm_index); + switch (ifm->ifm_data.ifi_link_state) { + case LINK_STATE_DOWN: + state = "down"; + break; + case LINK_STATE_UP: + state = "up"; + break; + default: + state = "unknown"; + break; + } + (void) printf("link: %s, flags:", state); + bprintf(stdout, ifm->ifm_flags, ifnetflags); + pmsg_addrs((char *)(ifm + 1), ifm->ifm_addrs); + break; + case RTM_NEWADDR: + case RTM_DELADDR: + ifam = (struct ifa_msghdr *)rtm; + (void) printf("metric %d, flags:", ifam->ifam_metric); + bprintf(stdout, ifam->ifam_flags, routeflags); + pmsg_addrs((char *)(ifam + 1), ifam->ifam_addrs); + break; +#ifdef RTM_NEWMADDR + case RTM_NEWMADDR: + case RTM_DELMADDR: + ifmam = (struct ifma_msghdr *)rtm; + pmsg_addrs((char *)(ifmam + 1), ifmam->ifmam_addrs); + break; +#endif + case RTM_IFANNOUNCE: + ifan = (struct if_announcemsghdr *)rtm; + (void) printf("if# %d, what: ", ifan->ifan_index); + switch (ifan->ifan_what) { + case IFAN_ARRIVAL: + printf("arrival"); + break; + case IFAN_DEPARTURE: + printf("departure"); + break; + default: + printf("#%d", ifan->ifan_what); + break; + } + printf("\n"); + break; + + default: + (void) printf("pid: %ld, seq %d, errno %d, flags:", + (long)rtm->rtm_pid, rtm->rtm_seq, rtm->rtm_errno); + bprintf(stdout, rtm->rtm_flags, routeflags); + pmsg_common(rtm); + } +} + +void +print_getmsg(rtm, msglen) + struct rt_msghdr *rtm; + int msglen; +{ + struct sockaddr *dst = NULL, *gate = NULL, *mask = NULL; + struct sockaddr_dl *ifp = NULL; + struct sockaddr *sa; + char *cp; + int i; + + (void) printf(" route to: %s\n", routename(&so_dst)); + if (rtm->rtm_version != RTM_VERSION) { + warnx("routing message version %d not understood", + rtm->rtm_version); + return; + } + if (rtm->rtm_msglen > msglen) { + warnx("message length mismatch, in packet %d, returned %d", + rtm->rtm_msglen, msglen); + } + if (rtm->rtm_errno) { + errno = rtm->rtm_errno; + warn("message indicates error %d", errno); + return; + } + cp = ((char *)(rtm + 1)); + if (rtm->rtm_addrs) + for (i = 1; i; i <<= 1) + if (i & rtm->rtm_addrs) { + sa = (struct sockaddr *)cp; + switch (i) { + case RTA_DST: + dst = sa; + break; + case RTA_GATEWAY: + gate = sa; + break; + case RTA_NETMASK: + mask = sa; + break; + case RTA_IFP: + if (sa->sa_family == AF_LINK && + ((struct sockaddr_dl *)sa)->sdl_nlen) + ifp = (struct sockaddr_dl *)sa; + break; + } + cp += SA_SIZE(sa); + } + if (dst && mask) + mask->sa_family = dst->sa_family; /* XXX */ + if (dst) + (void)printf("destination: %s\n", routename(dst)); + if (mask) { + int savenflag = nflag; + + nflag = 1; + (void)printf(" mask: %s\n", routename(mask)); + nflag = savenflag; + } + if (gate && rtm->rtm_flags & RTF_GATEWAY) + (void)printf(" gateway: %s\n", routename(gate)); + if (ifp) + (void)printf(" interface: %.*s\n", + ifp->sdl_nlen, ifp->sdl_data); + (void)printf(" flags: "); + bprintf(stdout, rtm->rtm_flags, routeflags); + +#define lock(f) ((rtm->rtm_rmx.rmx_locks & __CONCAT(RTV_,f)) ? 'L' : ' ') +#define msec(u) (((u) + 500) / 1000) /* usec to msec */ + + (void) printf("\n%s\n", "\ + recvpipe sendpipe ssthresh rtt,msec mtu weight expire"); + printf("%8ld%c ", rtm->rtm_rmx.rmx_recvpipe, lock(RPIPE)); + printf("%8ld%c ", rtm->rtm_rmx.rmx_sendpipe, lock(SPIPE)); + printf("%8ld%c ", rtm->rtm_rmx.rmx_ssthresh, lock(SSTHRESH)); + printf("%8ld%c ", msec(rtm->rtm_rmx.rmx_rtt), lock(RTT)); + printf("%8ld%c ", rtm->rtm_rmx.rmx_mtu, lock(MTU)); + printf("%8ld%c ", rtm->rtm_rmx.rmx_weight, lock(WEIGHT)); + if (rtm->rtm_rmx.rmx_expire) + rtm->rtm_rmx.rmx_expire -= time(0); + printf("%8ld%c\n", rtm->rtm_rmx.rmx_expire, lock(EXPIRE)); +#undef lock +#undef msec +#define RTA_IGN (RTA_DST|RTA_GATEWAY|RTA_NETMASK|RTA_IFP|RTA_IFA|RTA_BRD) + if (verbose) + pmsg_common(rtm); + else if (rtm->rtm_addrs &~ RTA_IGN) { + (void) printf("sockaddrs: "); + bprintf(stdout, rtm->rtm_addrs, addrnames); + putchar('\n'); + } +#undef RTA_IGN +} + +void +pmsg_common(rtm) + struct rt_msghdr *rtm; +{ + (void) printf("\nlocks: "); + bprintf(stdout, rtm->rtm_rmx.rmx_locks, metricnames); + (void) printf(" inits: "); + bprintf(stdout, rtm->rtm_inits, metricnames); + pmsg_addrs(((char *)(rtm + 1)), rtm->rtm_addrs); +} + +void +pmsg_addrs(cp, addrs) + char *cp; + int addrs; +{ + struct sockaddr *sa; + int i; + + if (addrs == 0) { + (void) putchar('\n'); + return; + } + (void) printf("\nsockaddrs: "); + bprintf(stdout, addrs, addrnames); + (void) putchar('\n'); + for (i = 1; i; i <<= 1) + if (i & addrs) { + sa = (struct sockaddr *)cp; + (void) printf(" %s", routename(sa)); + cp += SA_SIZE(sa); + } + (void) putchar('\n'); + (void) fflush(stdout); +} + +void +bprintf(fp, b, s) + FILE *fp; + int b; + u_char *s; +{ + int i; + int gotsome = 0; + + if (b == 0) + return; + while ((i = *s++) != 0) { + if (b & (1 << (i-1))) { + if (gotsome == 0) + i = '<'; + else + i = ','; + (void) putc(i, fp); + gotsome = 1; + for (; (i = *s) > 32; s++) + (void) putc(i, fp); + } else + while (*s > 32) + s++; + } + if (gotsome) + (void) putc('>', fp); +} + +int +keyword(cp) + char *cp; +{ + struct keytab *kt = keywords; + + while (kt->kt_cp && strcmp(kt->kt_cp, cp)) + kt++; + return kt->kt_i; +} + +void +sodump(su, which) + sup su; + char *which; +{ + switch (su->sa.sa_family) { + case AF_LINK: + (void) printf("%s: link %s; ", + which, link_ntoa(&su->sdl)); + break; + case AF_INET: + (void) printf("%s: inet %s; ", + which, inet_ntoa(su->sin.sin_addr)); + break; + case AF_APPLETALK: + (void) printf("%s: atalk %s; ", + which, atalk_ntoa(su->sat.sat_addr)); + break; + } + (void) fflush(stdout); +} + +/* States*/ +#define VIRGIN 0 +#define GOTONE 1 +#define GOTTWO 2 +/* Inputs */ +#define DIGIT (4*0) +#define END (4*1) +#define DELIM (4*2) + +void +sockaddr(addr, sa) + char *addr; + struct sockaddr *sa; +{ + char *cp = (char *)sa; + int size = sa->sa_len; + char *cplim = cp + size; + int byte = 0, state = VIRGIN, new = 0 /* foil gcc */; + + memset(cp, 0, size); + cp++; + do { + if ((*addr >= '0') && (*addr <= '9')) { + new = *addr - '0'; + } else if ((*addr >= 'a') && (*addr <= 'f')) { + new = *addr - 'a' + 10; + } else if ((*addr >= 'A') && (*addr <= 'F')) { + new = *addr - 'A' + 10; + } else if (*addr == 0) + state |= END; + else + state |= DELIM; + addr++; + switch (state /* | INPUT */) { + case GOTTWO | DIGIT: + *cp++ = byte; /*FALLTHROUGH*/ + case VIRGIN | DIGIT: + state = GOTONE; byte = new; continue; + case GOTONE | DIGIT: + state = GOTTWO; byte = new + (byte << 4); continue; + default: /* | DELIM */ + state = VIRGIN; *cp++ = byte; byte = 0; continue; + case GOTONE | END: + case GOTTWO | END: + *cp++ = byte; /* FALLTHROUGH */ + case VIRGIN | END: + break; + } + break; + } while (cp < cplim); + sa->sa_len = cp - (char *)sa; +} + +int +atalk_aton(const char *text, struct at_addr *addr) +{ + u_int net, node; + + if (sscanf(text, "%u.%u", &net, &node) != 2 + || net > 0xffff || node > 0xff) + return(0); + addr->s_net = htons(net); + addr->s_node = node; + return(1); +} + +char * +atalk_ntoa(struct at_addr at) +{ + static char buf[20]; + + (void) snprintf(buf, sizeof(buf), "%u.%u", ntohs(at.s_net), at.s_node); + return(buf); +} diff --git a/freebsd-userspace/from-freebsd.sh b/freebsd-userspace/from-freebsd.sh index bcac61c8..74d13d79 100755 --- a/freebsd-userspace/from-freebsd.sh +++ b/freebsd-userspace/from-freebsd.sh @@ -244,6 +244,8 @@ net/if_dl.h net/if_types.h net/in.h net/route.h +netatalk/at.h +netinet/if_ether.h netinet/in.h netinet/icmp6.h sys/socket.h diff --git a/freebsd-userspace/include/netatalk/at.h b/freebsd-userspace/include/netatalk/at.h new file mode 100644 index 00000000..27e88acb --- /dev/null +++ b/freebsd-userspace/include/netatalk/at.h @@ -0,0 +1,2 @@ +#include +#include diff --git a/freebsd-userspace/include/netinet/if_ether.h b/freebsd-userspace/include/netinet/if_ether.h new file mode 100644 index 00000000..e3c8d009 --- /dev/null +++ b/freebsd-userspace/include/netinet/if_ether.h @@ -0,0 +1,2 @@ +#include +#include -- cgit v1.2.3