Date: Sun, 23 Aug 2009 17:00:16 +0000 (UTC) From: Hajimu UMEMOTO <ume@FreeBSD.org> To: src-committers@freebsd.org, svn-src-all@freebsd.org, svn-src-head@freebsd.org Subject: svn commit: r196475 - in head: contrib/traceroute usr.sbin/traceroute6 Message-ID: <200908231700.n7NH0GmC066870@svn.freebsd.org>
next in thread | raw e-mail | index | archive | help
Author: ume Date: Sun Aug 23 17:00:16 2009 New Revision: 196475 URL: http://svn.freebsd.org/changeset/base/196475 Log: - Add AS lookup functionality to traceroute6(8) as well. - Support for IPv6 transport for AS lookup. - Introduce $RA_SERVER to set whois server. - Support for 4 byte ASN. - ANSIfy function declaration in as.c. Tested by: IHANet folks. Modified: head/contrib/traceroute/as.c head/contrib/traceroute/as.h head/contrib/traceroute/traceroute.c head/usr.sbin/traceroute6/Makefile head/usr.sbin/traceroute6/traceroute6.8 head/usr.sbin/traceroute6/traceroute6.c Modified: head/contrib/traceroute/as.c ============================================================================== --- head/contrib/traceroute/as.c Sun Aug 23 16:29:47 2009 (r196474) +++ head/contrib/traceroute/as.c Sun Aug 23 17:00:16 2009 (r196475) @@ -63,55 +63,42 @@ struct aslookup { }; void * -as_setup(server) - char *server; +as_setup(char *server) { struct aslookup *asn; - struct hostent *he = NULL; - struct servent *se; - struct sockaddr_in in; + struct addrinfo hints, *res0, *res; FILE *f; - int s; + int s, error; if (server == NULL) + server = getenv("RA_SERVER"); + if (server == NULL) server = DEFAULT_AS_SERVER; - (void)memset(&in, 0, sizeof(in)); - in.sin_family = AF_INET; - in.sin_len = sizeof(in); - if ((se = getservbyname("whois", "tcp")) == NULL) { + memset(&hints, 0, sizeof(hints)); + hints.ai_family = PF_UNSPEC; + hints.ai_socktype = SOCK_STREAM; + error = getaddrinfo(server, "whois", &hints, &res0); + if (error == EAI_SERVICE) { warnx("warning: whois/tcp service not found"); - in.sin_port = ntohs(43); - } else - in.sin_port = se->s_port; - - if (inet_aton(server, &in.sin_addr) == 0 && - ((he = gethostbyname(server)) == NULL || - he->h_addr == NULL)) { - warnx("%s: %s", server, hstrerror(h_errno)); - return (NULL); + error = getaddrinfo(server, "43", &hints, &res0); } - - if ((s = socket(PF_INET, SOCK_STREAM, 0)) == -1) { - warn("socket"); + if (error != 0) { + warnx("%s: %s", server, gai_strerror(error)); return (NULL); } - do { - if (he != NULL) { - memcpy(&in.sin_addr, he->h_addr, he->h_length); - he->h_addr_list++; - } - if (connect(s, (struct sockaddr *)&in, sizeof(in)) == 0) + for (res = res0; res; res = res->ai_next) { + s = socket(res->ai_family, res->ai_socktype, res->ai_protocol); + if (s < 0) + continue; + if (connect(s, res->ai_addr, res->ai_addrlen) >= 0) break; - if (he == NULL || he->h_addr == NULL) { - close(s); - s = -1; - break; - } - } while (1); - - if (s == -1) { + close(s); + s = -1; + } + freeaddrinfo(res0); + if (s < 0) { warn("connect"); return (NULL); } @@ -137,23 +124,23 @@ as_setup(server) return (asn); } -int -as_lookup(_asn, addr) - void *_asn; - struct in_addr *addr; +unsigned int +as_lookup(void *_asn, char *addr, sa_family_t family) { struct aslookup *asn = _asn; char buf[1024]; - int as, rc, dlen; + unsigned int as; + int rc, dlen, plen; - as = rc = dlen = 0; - (void)fprintf(asn->as_f, "!r%s/32,l\n", inet_ntoa(*addr)); + as = 0; + rc = dlen = 0; + plen = (family == AF_INET6) ? 128 : 32; + (void)fprintf(asn->as_f, "!r%s/%d,l\n", addr, plen); (void)fflush(asn->as_f); #ifdef AS_DEBUG_FILE if (asn->as_debug) { - (void)fprintf(asn->as_debug, ">> !r%s/32,l\n", - inet_ntoa(*addr)); + (void)fprintf(asn->as_debug, ">> !r%s/%d,l\n", addr, plen); (void)fflush(asn->as_debug); } #endif /* AS_DEBUG_FILE */ @@ -182,7 +169,7 @@ as_lookup(_asn, addr) } #endif /* AS_DEBUG_FILE */ break; - case 'C': + case 'C': case 'D': case 'E': case 'F': @@ -209,7 +196,7 @@ as_lookup(_asn, addr) /* origin line is the interesting bit */ if (as == 0 && strncasecmp(buf, "origin:", 7) == 0) { - sscanf(buf + 7, " AS%d", &as); + sscanf(buf + 7, " AS%u", &as); #ifdef AS_DEBUG_FILE if (asn->as_debug) { (void)fprintf(asn->as_debug, "as: %d\n", as); @@ -223,8 +210,7 @@ as_lookup(_asn, addr) } void -as_shutdown(_asn) - void *_asn; +as_shutdown(void *_asn) { struct aslookup *asn = _asn; Modified: head/contrib/traceroute/as.h ============================================================================== --- head/contrib/traceroute/as.h Sun Aug 23 16:29:47 2009 (r196474) +++ head/contrib/traceroute/as.h Sun Aug 23 17:00:16 2009 (r196475) @@ -37,6 +37,6 @@ * POSSIBILITY OF SUCH DAMAGE. */ -void *as_setup __P((char *)); -int as_lookup __P((void *, struct in_addr *)); -void as_shutdown __P((void *)); +void *as_setup(char *); +unsigned int as_lookup(void *, char *, sa_family_t); +void as_shutdown(void *); Modified: head/contrib/traceroute/traceroute.c ============================================================================== --- head/contrib/traceroute/traceroute.c Sun Aug 23 16:29:47 2009 (r196474) +++ head/contrib/traceroute/traceroute.c Sun Aug 23 17:00:16 2009 (r196475) @@ -1477,19 +1477,21 @@ print(register u_char *buf, register int { register struct ip *ip; register int hlen; + char addr[INET_ADDRSTRLEN]; ip = (struct ip *) buf; hlen = ip->ip_hl << 2; cc -= hlen; + strlcpy(addr, inet_ntoa(from->sin_addr), sizeof(addr)); + if (as_path) - Printf(" [AS%d]", as_lookup(asn, &from->sin_addr)); + Printf(" [AS%u]", as_lookup(asn, addr, AF_INET)); if (nflag) - Printf(" %s", inet_ntoa(from->sin_addr)); + Printf(" %s", addr); else - Printf(" %s (%s)", inetname(from->sin_addr), - inet_ntoa(from->sin_addr)); + Printf(" %s (%s)", inetname(from->sin_addr), addr); if (verbose) Printf(" %d bytes to %s", cc, inet_ntoa (ip->ip_dst)); Modified: head/usr.sbin/traceroute6/Makefile ============================================================================== --- head/usr.sbin/traceroute6/Makefile Sun Aug 23 16:29:47 2009 (r196474) +++ head/usr.sbin/traceroute6/Makefile Sun Aug 23 17:00:16 2009 (r196475) @@ -13,12 +13,17 @@ # A PARTICULAR PURPOSE. # $FreeBSD$ +TRACEROUTE_DISTDIR?= ${.CURDIR}/../../contrib/traceroute +.PATH: ${TRACEROUTE_DISTDIR} + PROG= traceroute6 MAN= traceroute6.8 +SRCS= as.c traceroute6.c BINOWN= root BINMODE= 4555 CFLAGS+= -DIPSEC -DUSE_RFC2292BIS -DHAVE_POLL +CFLAGS+= -I${.CURDIR} -I${TRACEROUTE_DISTDIR} -I. DPADD= ${LIBIPSEC} LDADD= -lipsec Modified: head/usr.sbin/traceroute6/traceroute6.8 ============================================================================== --- head/usr.sbin/traceroute6/traceroute6.8 Sun Aug 23 16:29:47 2009 (r196474) +++ head/usr.sbin/traceroute6/traceroute6.8 Sun Aug 23 17:00:16 2009 (r196475) @@ -29,7 +29,7 @@ .\" .\" $FreeBSD$ .\" -.Dd May 17, 1998 +.Dd August 24, 2009 .Dt TRACEROUTE6 8 .Os .\" @@ -40,7 +40,7 @@ .Sh SYNOPSIS .Nm .Bk -words -.Op Fl dIlnNrvU +.Op Fl adIlnNrvU .Ek .Bk -words .Op Fl f Ar firsthop @@ -64,6 +64,9 @@ .Op Fl w Ar waittime .Ek .Bk -words +.Op Fl A Ar as_server +.Ek +.Bk -words .Ar target .Op Ar datalen .Ek @@ -84,6 +87,10 @@ after the destination host name. .Pp Other options are: .Bl -tag -width Ds +.It Fl a +Turn on AS# lookups for each hop encountered. +.It Fl A Ar as_server +Turn on AS# lookups and use the given server instead of the default. .It Fl d Debug mode. .It Fl f Ar firsthop Modified: head/usr.sbin/traceroute6/traceroute6.c ============================================================================== --- head/usr.sbin/traceroute6/traceroute6.c Sun Aug 23 16:29:47 2009 (r196474) +++ head/usr.sbin/traceroute6/traceroute6.c Sun Aug 23 17:00:16 2009 (r196475) @@ -282,6 +282,8 @@ static const char rcsid[] = #include <netipsec/ipsec.h> #endif +#include "as.h" + #define DUMMY_PORT 10010 #define MAXPACKET 65535 /* max ip packet size */ @@ -359,6 +361,9 @@ int waittime = 5; /* time to wait for r int nflag; /* print addresses numerically */ int useproto = IPPROTO_UDP; /* protocol to use to send packet */ int lflag; /* print both numerical address & hostname */ +int as_path; /* print as numbers for each hop */ +char *as_server = NULL; +void *asn; int main(argc, argv) @@ -411,8 +416,15 @@ main(argc, argv) seq = 0; - while ((ch = getopt(argc, argv, "df:g:Ilm:nNp:q:rs:Uvw:")) != -1) + while ((ch = getopt(argc, argv, "aA:df:g:Ilm:nNp:q:rs:Uvw:")) != -1) switch (ch) { + case 'a': + as_path = 1; + break; + case 'A': + as_path = 1; + as_server = optarg; + break; case 'd': options |= SO_DEBUG; break; @@ -867,6 +879,17 @@ main(argc, argv) srcport = ntohs(Src.sin6_port); } + if (as_path) { + asn = as_setup(as_server); + if (asn == NULL) { + fprintf(stderr, + "traceroute6: as_setup failed, AS# lookups" + " disabled\n"); + (void)fflush(stderr); + as_path = 0; + } + } + /* * Message to users */ @@ -948,6 +971,8 @@ main(argc, argv) exit(0); } } + if (as_path) + as_shutdown(asn); exit(0); } @@ -1361,6 +1386,8 @@ print(mhdr, cc) if (getnameinfo((struct sockaddr *)from, from->sin6_len, hbuf, sizeof(hbuf), NULL, 0, NI_NUMERICHOST) != 0) strlcpy(hbuf, "invalid", sizeof(hbuf)); + if (as_path) + printf(" [AS%u]", as_lookup(asn, hbuf, AF_INET6)); if (nflag) printf(" %s", hbuf); else if (lflag)
Want to link to this message? Use this URL: <https://mail-archive.FreeBSD.org/cgi/mid.cgi?200908231700.n7NH0GmC066870>