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1.34 ! claudio 1: /* $OpenBSD: show.c,v 1.33 2010/07/30 12:55:12 bluhm Exp $ */
1.1 claudio 2: /* $NetBSD: show.c,v 1.1 1996/11/15 18:01:41 gwr Exp $ */
3:
4: /*
5: * Copyright (c) 1983, 1988, 1993
6: * The Regents of the University of California. All rights reserved.
7: *
8: * Redistribution and use in source and binary forms, with or without
9: * modification, are permitted provided that the following conditions
10: * are met:
11: * 1. Redistributions of source code must retain the above copyright
12: * notice, this list of conditions and the following disclaimer.
13: * 2. Redistributions in binary form must reproduce the above copyright
14: * notice, this list of conditions and the following disclaimer in the
15: * documentation and/or other materials provided with the distribution.
16: * 3. Neither the name of the University nor the names of its contributors
17: * may be used to endorse or promote products derived from this software
18: * without specific prior written permission.
19: *
20: * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
21: * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
22: * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
23: * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
24: * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
25: * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
26: * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
27: * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
28: * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
29: * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
30: * SUCH DAMAGE.
31: */
32:
33: #include <sys/param.h>
34: #include <sys/protosw.h>
35: #include <sys/socket.h>
36: #include <sys/mbuf.h>
37: #include <sys/sysctl.h>
38:
39: #include <net/if.h>
40: #include <net/if_dl.h>
41: #include <net/if_types.h>
42: #include <net/pfkeyv2.h>
43: #include <net/route.h>
44: #include <netinet/in.h>
45: #include <netinet/if_ether.h>
46: #include <netinet/ip_ipsp.h>
1.13 claudio 47: #include <netmpls/mpls.h>
1.1 claudio 48: #include <arpa/inet.h>
49:
50: #include <err.h>
51: #include <errno.h>
52: #include <netdb.h>
53: #include <stdio.h>
54: #include <stddef.h>
55: #include <stdlib.h>
56: #include <string.h>
57: #include <unistd.h>
58:
59: #include "netstat.h"
60:
61: char *any_ntoa(const struct sockaddr *);
62: char *link_print(struct sockaddr *);
1.30 claudio 63: char *label_print(struct sockaddr *);
1.1 claudio 64:
65: #define ROUNDUP(a) \
66: ((a) > 0 ? (1 + (((a) - 1) | (sizeof(long) - 1))) : sizeof(long))
67: #define ADVANCE(x, n) (x += ROUNDUP((n)->sa_len))
68:
69: #define PFKEYV2_CHUNK sizeof(u_int64_t)
70:
71: /*
72: * Definitions for showing gateway flags.
73: */
74: struct bits {
75: int b_mask;
76: char b_val;
77: };
78: static const struct bits bits[] = {
79: { RTF_UP, 'U' },
80: { RTF_GATEWAY, 'G' },
81: { RTF_HOST, 'H' },
82: { RTF_REJECT, 'R' },
83: { RTF_BLACKHOLE, 'B' },
84: { RTF_DYNAMIC, 'D' },
85: { RTF_MODIFIED, 'M' },
86: { RTF_DONE, 'd' }, /* Completed -- for routing messages only */
87: { RTF_MASK, 'm' }, /* Mask Present -- for routing messages only */
88: { RTF_CLONING, 'C' },
89: { RTF_XRESOLVE, 'X' },
90: { RTF_LLINFO, 'L' },
91: { RTF_STATIC, 'S' },
92: { RTF_PROTO1, '1' },
93: { RTF_PROTO2, '2' },
94: { RTF_PROTO3, '3' },
95: { RTF_CLONED, 'c' },
96: { RTF_JUMBO, 'J' },
1.18 claudio 97: { RTF_MPATH, 'P' },
1.25 michele 98: { RTF_MPLS, 'T' },
1.1 claudio 99: { 0 }
100: };
101:
102: void p_rtentry(struct rt_msghdr *);
103: void p_pfkentry(struct sadb_msg *);
104: void pr_family(int);
105: void p_encap(struct sockaddr *, struct sockaddr *, int);
106: void p_protocol(struct sadb_protocol *, struct sockaddr *, struct
1.13 claudio 107: sadb_protocol *, int);
1.1 claudio 108: void p_sockaddr(struct sockaddr *, struct sockaddr *, int, int);
1.17 michele 109: void p_sockaddr_mpls(struct sockaddr *, struct sockaddr *, int, int);
1.1 claudio 110: void p_flags(int, char *);
111: char *routename4(in_addr_t);
112: char *routename6(struct sockaddr_in6 *);
113: void index_pfk(struct sadb_msg *, void **);
114:
115: /*
116: * Print routing tables.
117: */
118: void
1.34 ! claudio 119: p_rttables(int af, u_int tableid, int hastable)
1.1 claudio 120: {
121: struct rt_msghdr *rtm;
122: struct sadb_msg *msg;
123: char *buf = NULL, *next, *lim = NULL;
124: size_t needed;
1.34 ! claudio 125: int mib[7], mcnt;
1.1 claudio 126: struct sockaddr *sa;
127:
128: mib[0] = CTL_NET;
129: mib[1] = PF_ROUTE;
130: mib[2] = 0;
131: mib[3] = af;
132: mib[4] = NET_RT_DUMP;
133: mib[5] = 0;
1.34 ! claudio 134: if (hastable) {
! 135: mib[6] = tableid;
! 136: mcnt = 7;
! 137: } else
! 138: mcnt = 6;
1.10 claudio 139:
1.34 ! claudio 140: if (sysctl(mib, mcnt, NULL, &needed, NULL, 0) < 0)
1.1 claudio 141: err(1, "route-sysctl-estimate");
142: if (needed > 0) {
143: if ((buf = malloc(needed)) == 0)
144: err(1, NULL);
1.34 ! claudio 145: if (sysctl(mib, mcnt, buf, &needed, NULL, 0) < 0)
1.1 claudio 146: err(1, "sysctl of routing table");
147: lim = buf + needed;
148: }
149:
150: printf("Routing tables\n");
151:
152: if (buf) {
153: for (next = buf; next < lim; next += rtm->rtm_msglen) {
154: rtm = (struct rt_msghdr *)next;
1.8 claudio 155: if (rtm->rtm_version != RTM_VERSION)
156: continue;
1.23 chris 157: sa = (struct sockaddr *)(next + rtm->rtm_hdrlen);
1.1 claudio 158: if (af != AF_UNSPEC && sa->sa_family != af)
159: continue;
160: p_rtentry(rtm);
161: }
162: free(buf);
163: buf = NULL;
164: }
165:
166: if (af != 0 && af != PF_KEY)
167: return;
168:
169: mib[0] = CTL_NET;
170: mib[1] = PF_KEY;
171: mib[2] = PF_KEY_V2;
172: mib[3] = NET_KEY_SPD_DUMP;
173: mib[4] = mib[5] = 0;
174:
175: if (sysctl(mib, 4, NULL, &needed, NULL, 0) == -1) {
176: if (errno == ENOPROTOOPT)
177: return;
178: err(1, "spd-sysctl-estimate");
179: }
180: if (needed > 0) {
181: if ((buf = malloc(needed)) == 0)
182: err(1, NULL);
183: if (sysctl(mib, 4, buf, &needed, NULL, 0) == -1)
184: err(1,"sysctl of spd");
185: lim = buf + needed;
186: }
187:
188: if (buf) {
189: printf("\nEncap:\n");
190:
191: for (next = buf; next < lim; next += msg->sadb_msg_len *
192: PFKEYV2_CHUNK) {
193: msg = (struct sadb_msg *)next;
194: if (msg->sadb_msg_len == 0)
195: break;
196: p_pfkentry(msg);
197: }
198: free(buf);
199: buf = NULL;
200: }
201: }
202:
1.12 deraadt 203: /*
1.1 claudio 204: * column widths; each followed by one space
205: * width of destination/gateway column
206: * strlen("fe80::aaaa:bbbb:cccc:dddd@gif0") == 30, strlen("/128") == 4
207: */
208: #define WID_GW(af) ((af) == AF_INET6 ? (nflag ? 30 : 18) : 18)
209:
1.13 claudio 210: int
211: WID_DST(int af)
212: {
213:
214: if (nflag)
215: switch (af) {
216: case AF_MPLS:
1.30 claudio 217: return 9;
1.13 claudio 218: case AF_INET6:
219: return 34;
220: default:
221: return 18;
222: }
223: else
224: switch (af) {
225: case AF_MPLS:
1.30 claudio 226: return 9;
1.13 claudio 227: default:
228: return 18;
229: }
230: }
231:
1.1 claudio 232: /*
233: * Print header for routing table columns.
234: */
235: void
236: pr_rthdr(int af, int Aflag)
237: {
238: if (Aflag)
239: printf("%-*.*s ", PLEN, PLEN, "Address");
1.13 claudio 240: switch (af) {
241: case PF_KEY:
1.1 claudio 242: printf("%-18s %-5s %-18s %-5s %-5s %-22s\n",
243: "Source", "Port", "Destination",
244: "Port", "Proto", "SA(Address/Proto/Type/Direction)");
1.13 claudio 245: break;
246: case PF_MPLS:
1.30 claudio 247: printf("%-9s %-9s %-6s %-18s %-6.6s %5.5s %8.8s %5.5s %4.4s %s\n",
1.13 claudio 248: "In label", "Out label", "Op", "Gateway",
249: "Flags", "Refs", "Use", "Mtu", "Prio", "Interface");
250: break;
251: default:
1.32 bluhm 252: printf("%-*.*s %-*.*s %-6.6s %5.5s %8.8s %5.5s %4.4s %s",
1.13 claudio 253: WID_DST(af), WID_DST(af), "Destination",
254: WID_GW(af), WID_GW(af), "Gateway",
255: "Flags", "Refs", "Use", "Mtu", "Prio", "Iface");
1.33 bluhm 256: if (vflag && !Aflag)
1.32 bluhm 257: printf(" %s", "Label");
258: putchar('\n');
1.13 claudio 259: break;
260: }
1.1 claudio 261: }
262:
263: static void
264: get_rtaddrs(int addrs, struct sockaddr *sa, struct sockaddr **rti_info)
265: {
266: int i;
267:
268: for (i = 0; i < RTAX_MAX; i++) {
269: if (addrs & (1 << i)) {
270: rti_info[i] = sa;
271: sa = (struct sockaddr *)((char *)(sa) +
272: ROUNDUP(sa->sa_len));
273: } else
274: rti_info[i] = NULL;
275: }
276: }
277:
278: /*
279: * Print a routing table entry.
280: */
281: void
282: p_rtentry(struct rt_msghdr *rtm)
283: {
284: static int old_af = -1;
1.22 chris 285: struct sockaddr *sa = (struct sockaddr *)((char *)rtm + rtm->rtm_hdrlen);
1.1 claudio 286: struct sockaddr *mask, *rti_info[RTAX_MAX];
287: char ifbuf[IF_NAMESIZE];
288:
289: if (sa->sa_family == AF_KEY)
290: return;
291:
1.5 pyr 292: get_rtaddrs(rtm->rtm_addrs, sa, rti_info);
293: if (Fflag && rti_info[RTAX_GATEWAY]->sa_family != sa->sa_family) {
294: return;
295: }
1.1 claudio 296: if (old_af != sa->sa_family) {
297: old_af = sa->sa_family;
298: pr_family(sa->sa_family);
299: pr_rthdr(sa->sa_family, 0);
300: }
301:
302: mask = rti_info[RTAX_NETMASK];
303: if ((sa = rti_info[RTAX_DST]) == NULL)
304: return;
305:
306: p_sockaddr(sa, mask, rtm->rtm_flags, WID_DST(sa->sa_family));
1.19 michele 307: p_sockaddr_mpls(sa, rti_info[RTAX_SRC], rtm->rtm_mpls,
1.17 michele 308: WID_DST(sa->sa_family));
309:
1.1 claudio 310: p_sockaddr(rti_info[RTAX_GATEWAY], NULL, RTF_HOST,
311: WID_GW(sa->sa_family));
1.30 claudio 312:
1.1 claudio 313: p_flags(rtm->rtm_flags, "%-6.6s ");
1.13 claudio 314: printf("%5u %8llu ", rtm->rtm_rmx.rmx_refcnt,
1.1 claudio 315: rtm->rtm_rmx.rmx_pksent);
316: if (rtm->rtm_rmx.rmx_mtu)
1.13 claudio 317: printf("%5u ", rtm->rtm_rmx.rmx_mtu);
1.1 claudio 318: else
1.13 claudio 319: printf("%5s ", "-");
1.1 claudio 320: putchar((rtm->rtm_rmx.rmx_locks & RTV_MTU) ? 'L' : ' ');
1.32 bluhm 321: printf(" %2d %-5.16s", rtm->rtm_priority,
1.13 claudio 322: if_indextoname(rtm->rtm_index, ifbuf));
1.32 bluhm 323: if (vflag && rti_info[RTAX_LABEL])
324: printf(" %s", ((struct sockaddr_rtlabel *)
325: rti_info[RTAX_LABEL])->sr_label);
1.1 claudio 326: putchar('\n');
327: }
328:
329: /*
330: * Print a pfkey/encap entry.
331: */
332: void
333: p_pfkentry(struct sadb_msg *msg)
334: {
1.13 claudio 335: static int old = 0;
1.1 claudio 336: struct sadb_address *saddr;
337: struct sadb_protocol *sap, *saft;
338: struct sockaddr *sa, *mask;
339: void *headers[SADB_EXT_MAX + 1];
340:
341: if (!old) {
342: pr_rthdr(PF_KEY, 0);
343: old++;
344: }
345:
346: bzero(headers, sizeof(headers));
347: index_pfk(msg, headers);
348:
349: /* These are always set */
350: saddr = headers[SADB_X_EXT_SRC_FLOW];
351: sa = (struct sockaddr *)(saddr + 1);
352: saddr = headers[SADB_X_EXT_SRC_MASK];
353: mask = (struct sockaddr *)(saddr + 1);
354: p_encap(sa, mask, WID_DST(sa->sa_family));
355:
356: /* These are always set, too. */
357: saddr = headers[SADB_X_EXT_DST_FLOW];
358: sa = (struct sockaddr *)(saddr + 1);
359: saddr = headers[SADB_X_EXT_DST_MASK];
360: mask = (struct sockaddr *)(saddr + 1);
361: p_encap(sa, mask, WID_DST(sa->sa_family));
362:
363: /* Bypass and deny flows do not set SADB_EXT_ADDRESS_DST! */
364: sap = headers[SADB_X_EXT_PROTOCOL];
365: saft = headers[SADB_X_EXT_FLOW_TYPE];
366: saddr = headers[SADB_EXT_ADDRESS_DST];
367: if (saddr)
368: sa = (struct sockaddr *)(saddr + 1);
369: else
370: sa = NULL;
371: p_protocol(sap, sa, saft, msg->sadb_msg_satype);
372:
373: printf("\n");
374: }
375:
376: /*
377: * Print address family header before a section of the routing table.
378: */
379: void
380: pr_family(int af)
381: {
382: char *afname;
383:
384: switch (af) {
385: case AF_INET:
386: afname = "Internet";
387: break;
388: case AF_INET6:
389: afname = "Internet6";
390: break;
391: case PF_KEY:
392: afname = "Encap";
393: break;
1.13 claudio 394: case AF_MPLS:
395: afname = "MPLS";
396: break;
1.1 claudio 397: case AF_APPLETALK:
398: afname = "AppleTalk";
399: break;
400: default:
401: afname = NULL;
402: break;
403: }
404: if (afname)
405: printf("\n%s:\n", afname);
406: else
407: printf("\nProtocol Family %d:\n", af);
408: }
409:
410: void
411: p_addr(struct sockaddr *sa, struct sockaddr *mask, int flags)
412: {
413: p_sockaddr(sa, mask, flags, WID_DST(sa->sa_family));
414: }
415:
416: void
417: p_gwaddr(struct sockaddr *sa, int af)
418: {
419: p_sockaddr(sa, 0, RTF_HOST, WID_GW(af));
420: }
421:
422: void
423: p_encap(struct sockaddr *sa, struct sockaddr *mask, int width)
424: {
1.13 claudio 425: char *cp;
426: unsigned short port = 0;
1.1 claudio 427:
1.2 todd 428: if (mask)
429: cp = netname(sa, mask);
430: else
431: cp = routename(sa);
1.1 claudio 432: switch (sa->sa_family) {
1.9 claudio 433: case AF_INET:
434: port = ntohs(((struct sockaddr_in *)sa)->sin_port);
435: break;
1.2 todd 436: case AF_INET6:
437: port = ntohs(((struct sockaddr_in6 *)sa)->sin6_port);
1.1 claudio 438: break;
439: }
440: if (width < 0)
441: printf("%s", cp);
442: else {
443: if (nflag)
444: printf("%-*s %-5u ", width, cp, port);
445: else
446: printf("%-*.*s %-5u ", width, width, cp, port);
447: }
448: }
449:
450: void
451: p_protocol(struct sadb_protocol *sap, struct sockaddr *sa, struct sadb_protocol
452: *saft, int proto)
453: {
454: printf("%-6u", sap->sadb_protocol_proto);
1.9 claudio 455:
1.1 claudio 456: if (sa)
457: p_sockaddr(sa, NULL, 0, -1);
458: else
459: printf("none");
460:
461: switch (proto) {
462: case SADB_SATYPE_ESP:
463: printf("/esp");
464: break;
465: case SADB_SATYPE_AH:
466: printf("/ah");
467: break;
468: case SADB_X_SATYPE_IPCOMP:
469: printf("/ipcomp");
470: break;
471: case SADB_X_SATYPE_IPIP:
472: printf("/ipip");
473: break;
474: default:
475: printf("/<unknown>");
476: }
477:
478: switch(saft->sadb_protocol_proto) {
479: case SADB_X_FLOW_TYPE_USE:
480: printf("/use");
481: break;
482: case SADB_X_FLOW_TYPE_REQUIRE:
483: printf("/require");
484: break;
485: case SADB_X_FLOW_TYPE_ACQUIRE:
486: printf("/acquire");
487: break;
488: case SADB_X_FLOW_TYPE_DENY:
489: printf("/deny");
490: break;
491: case SADB_X_FLOW_TYPE_BYPASS:
492: printf("/bypass");
493: break;
494: case SADB_X_FLOW_TYPE_DONTACQ:
495: printf("/dontacq");
496: break;
497: default:
498: printf("/<unknown type>");
499: }
500:
501: switch(saft->sadb_protocol_direction) {
502: case IPSP_DIRECTION_IN:
503: printf("/in");
504: break;
505: case IPSP_DIRECTION_OUT:
506: printf("/out");
507: break;
508: default:
509: printf("/<unknown>");
510: }
511: }
512:
513: void
514: p_sockaddr(struct sockaddr *sa, struct sockaddr *mask, int flags, int width)
515: {
516: char *cp;
517:
518: switch (sa->sa_family) {
519: case AF_INET6:
520: {
521: struct sockaddr_in6 *sa6 = (struct sockaddr_in6 *)sa;
522: struct in6_addr *in6 = &sa6->sin6_addr;
523:
524: /*
525: * XXX: This is a special workaround for KAME kernels.
526: * sin6_scope_id field of SA should be set in the future.
527: */
528: if (IN6_IS_ADDR_LINKLOCAL(in6) ||
1.3 itojun 529: IN6_IS_ADDR_MC_LINKLOCAL(in6) ||
530: IN6_IS_ADDR_MC_INTFACELOCAL(in6)) {
1.1 claudio 531: /* XXX: override is ok? */
532: sa6->sin6_scope_id = (u_int32_t)ntohs(*(u_short *)
533: &in6->s6_addr[2]);
534: *(u_short *)&in6->s6_addr[2] = 0;
535: }
536: if (flags & RTF_HOST)
537: cp = routename((struct sockaddr *)sa6);
538: else
539: cp = netname((struct sockaddr *)sa6, mask);
540: break;
541: }
1.16 michele 542: case AF_MPLS:
1.17 michele 543: return;
1.1 claudio 544: default:
545: if ((flags & RTF_HOST) || mask == NULL)
546: cp = routename(sa);
547: else
548: cp = netname(sa, mask);
549: break;
550: }
551: if (width < 0)
552: printf("%s", cp);
553: else {
554: if (nflag)
555: printf("%-*s ", width, cp);
556: else
557: printf("%-*.*s ", width, width, cp);
558: }
559: }
560:
1.17 michele 561: static char line[MAXHOSTNAMELEN];
562: static char domain[MAXHOSTNAMELEN];
563:
564: void
565: p_sockaddr_mpls(struct sockaddr *in, struct sockaddr *out, int flags, int width)
566: {
567: if (in->sa_family != AF_MPLS)
568: return;
569:
1.30 claudio 570: if (flags & MPLS_OP_POP || flags == MPLS_OP_LOCAL) {
571: printf("%-*s ", width, label_print(in));
572: printf("%-*s ", width, label_print(NULL));
573: } else {
574: printf("%-*s ", width, label_print(in));
575: printf("%-*s ", width, label_print(out));
576: }
1.17 michele 577:
1.30 claudio 578: printf("%-6s ", mpls_op(flags));
1.17 michele 579: }
580:
1.1 claudio 581: void
582: p_flags(int f, char *format)
583: {
584: char name[33], *flags;
585: const struct bits *p = bits;
586:
587: for (flags = name; p->b_mask && flags < &name[sizeof(name) - 2]; p++)
588: if (p->b_mask & f)
589: *flags++ = p->b_val;
590: *flags = '\0';
591: printf(format, name);
592: }
593:
594: char *
595: routename(struct sockaddr *sa)
596: {
597: char *cp = NULL;
598: static int first = 1;
599:
600: if (first) {
601: first = 0;
602: if (gethostname(domain, sizeof(domain)) == 0 &&
603: (cp = strchr(domain, '.')))
604: (void)strlcpy(domain, cp + 1, sizeof(domain));
605: else
606: domain[0] = '\0';
607: cp = NULL;
608: }
609:
610: if (sa->sa_len == 0) {
611: (void)strlcpy(line, "default", sizeof(line));
612: return (line);
613: }
614:
615: switch (sa->sa_family) {
616: case AF_INET:
617: return
618: (routename4(((struct sockaddr_in *)sa)->sin_addr.s_addr));
619:
620: case AF_INET6:
621: {
622: struct sockaddr_in6 sin6;
623:
624: memset(&sin6, 0, sizeof(sin6));
625: memcpy(&sin6, sa, sa->sa_len);
626: sin6.sin6_len = sizeof(struct sockaddr_in6);
627: sin6.sin6_family = AF_INET6;
628: if (sa->sa_len == sizeof(struct sockaddr_in6) &&
629: (IN6_IS_ADDR_LINKLOCAL(&sin6.sin6_addr) ||
1.3 itojun 630: IN6_IS_ADDR_MC_LINKLOCAL(&sin6.sin6_addr) ||
631: IN6_IS_ADDR_MC_INTFACELOCAL(&sin6.sin6_addr)) &&
1.1 claudio 632: sin6.sin6_scope_id == 0) {
633: sin6.sin6_scope_id =
634: ntohs(*(u_int16_t *)&sin6.sin6_addr.s6_addr[2]);
635: sin6.sin6_addr.s6_addr[2] = 0;
636: sin6.sin6_addr.s6_addr[3] = 0;
637: }
638: return (routename6(&sin6));
639: }
640:
641: case AF_LINK:
642: return (link_print(sa));
1.13 claudio 643: case AF_MPLS:
1.30 claudio 644: return (label_print(sa));
1.1 claudio 645: case AF_UNSPEC:
646: if (sa->sa_len == sizeof(struct sockaddr_rtlabel)) {
647: static char name[RTLABEL_LEN];
648: struct sockaddr_rtlabel *sr;
649:
650: sr = (struct sockaddr_rtlabel *)sa;
1.9 claudio 651: (void)strlcpy(name, sr->sr_label, sizeof(name));
1.1 claudio 652: return (name);
653: }
654: /* FALLTHROUGH */
655: default:
656: (void)snprintf(line, sizeof(line), "(%d) %s",
657: sa->sa_family, any_ntoa(sa));
658: break;
659: }
660: return (line);
661: }
662:
663: char *
664: routename4(in_addr_t in)
665: {
666: char *cp = NULL;
667: struct in_addr ina;
668: struct hostent *hp;
669:
670: if (in == INADDR_ANY)
671: cp = "default";
672: if (!cp && !nflag) {
673: if ((hp = gethostbyaddr((char *)&in,
674: sizeof(in), AF_INET)) != NULL) {
675: if ((cp = strchr(hp->h_name, '.')) &&
676: !strcmp(cp + 1, domain))
677: *cp = '\0';
678: cp = hp->h_name;
679: }
680: }
681: ina.s_addr = in;
682: strlcpy(line, cp ? cp : inet_ntoa(ina), sizeof(line));
683:
684: return (line);
685: }
686:
687: char *
688: routename6(struct sockaddr_in6 *sin6)
689: {
690: int niflags = 0;
691:
692: if (nflag)
693: niflags |= NI_NUMERICHOST;
694: else
695: niflags |= NI_NOFQDN;
696:
697: if (getnameinfo((struct sockaddr *)sin6, sin6->sin6_len,
698: line, sizeof(line), NULL, 0, niflags) != 0)
699: strncpy(line, "invalid", sizeof(line));
700:
701: return (line);
702: }
703:
704: /*
705: * Return the name of the network whose address is given.
706: * The address is assumed to be that of a net or subnet, not a host.
707: */
708: char *
709: netname4(in_addr_t in, in_addr_t mask)
710: {
711: char *cp = NULL;
712: struct netent *np = NULL;
713: int mbits;
714:
715: in = ntohl(in);
716: mask = ntohl(mask);
717: if (!nflag && in != INADDR_ANY) {
718: if ((np = getnetbyaddr(in, AF_INET)) != NULL)
719: cp = np->n_name;
720: }
1.28 dlg 721: if (in == INADDR_ANY && mask == INADDR_ANY)
1.1 claudio 722: cp = "default";
723: mbits = mask ? 33 - ffs(mask) : 0;
724: if (cp)
725: strlcpy(line, cp, sizeof(line));
726: #define C(x) ((x) & 0xff)
727: else if (mbits < 9)
728: snprintf(line, sizeof(line), "%u/%d", C(in >> 24), mbits);
729: else if (mbits < 17)
730: snprintf(line, sizeof(line), "%u.%u/%d",
731: C(in >> 24) , C(in >> 16), mbits);
732: else if (mbits < 25)
733: snprintf(line, sizeof(line), "%u.%u.%u/%d",
734: C(in >> 24), C(in >> 16), C(in >> 8), mbits);
735: else
736: snprintf(line, sizeof(line), "%u.%u.%u.%u/%d", C(in >> 24),
737: C(in >> 16), C(in >> 8), C(in), mbits);
738: #undef C
739: return (line);
740: }
741:
742: char *
743: netname6(struct sockaddr_in6 *sa6, struct sockaddr_in6 *mask)
744: {
745: struct sockaddr_in6 sin6;
746: u_char *p;
747: int masklen, final = 0, illegal = 0;
748: int i, lim, flag, error;
749: char hbuf[NI_MAXHOST];
750:
751: sin6 = *sa6;
752:
753: flag = 0;
754: masklen = 0;
755: if (mask) {
756: lim = mask->sin6_len - offsetof(struct sockaddr_in6, sin6_addr);
1.4 claudio 757: lim = lim < (int)sizeof(struct in6_addr) ?
1.1 claudio 758: lim : sizeof(struct in6_addr);
759: for (p = (u_char *)&mask->sin6_addr, i = 0; i < lim; p++) {
760: if (final && *p) {
761: illegal++;
762: sin6.sin6_addr.s6_addr[i++] = 0x00;
763: continue;
764: }
765:
766: switch (*p & 0xff) {
767: case 0xff:
768: masklen += 8;
769: break;
770: case 0xfe:
771: masklen += 7;
772: final++;
773: break;
774: case 0xfc:
775: masklen += 6;
776: final++;
777: break;
778: case 0xf8:
779: masklen += 5;
780: final++;
781: break;
782: case 0xf0:
783: masklen += 4;
784: final++;
785: break;
786: case 0xe0:
787: masklen += 3;
788: final++;
789: break;
790: case 0xc0:
791: masklen += 2;
792: final++;
793: break;
794: case 0x80:
795: masklen += 1;
796: final++;
797: break;
798: case 0x00:
799: final++;
800: break;
801: default:
802: final++;
803: illegal++;
804: break;
805: }
806:
807: if (!illegal)
808: sin6.sin6_addr.s6_addr[i++] &= *p;
809: else
810: sin6.sin6_addr.s6_addr[i++] = 0x00;
811: }
812: while (i < sizeof(struct in6_addr))
813: sin6.sin6_addr.s6_addr[i++] = 0x00;
814: } else
815: masklen = 128;
816:
817: if (masklen == 0 && IN6_IS_ADDR_UNSPECIFIED(&sin6.sin6_addr))
818: return ("default");
819:
820: if (illegal)
821: warnx("illegal prefixlen");
822:
823: if (nflag)
824: flag |= NI_NUMERICHOST;
825: error = getnameinfo((struct sockaddr *)&sin6, sin6.sin6_len,
826: hbuf, sizeof(hbuf), NULL, 0, flag);
827: if (error)
828: snprintf(hbuf, sizeof(hbuf), "invalid");
829:
830: snprintf(line, sizeof(line), "%s/%d", hbuf, masklen);
831: return (line);
832: }
833:
834: /*
835: * Return the name of the network whose address is given.
836: * The address is assumed to be that of a net or subnet, not a host.
837: */
838: char *
839: netname(struct sockaddr *sa, struct sockaddr *mask)
840: {
841: switch (sa->sa_family) {
842: case AF_INET:
843: return netname4(((struct sockaddr_in *)sa)->sin_addr.s_addr,
1.29 claudio 844: mask->sa_len == 0 ? 0 :
1.1 claudio 845: ((struct sockaddr_in *)mask)->sin_addr.s_addr);
846: case AF_INET6:
847: return netname6((struct sockaddr_in6 *)sa,
848: (struct sockaddr_in6 *)mask);
849: case AF_LINK:
850: return (link_print(sa));
1.13 claudio 851: case AF_MPLS:
1.30 claudio 852: return (label_print(sa));
1.1 claudio 853: default:
854: snprintf(line, sizeof(line), "af %d: %s",
855: sa->sa_family, any_ntoa(sa));
856: break;
857: }
858: return (line);
859: }
860:
861: static const char hexlist[] = "0123456789abcdef";
862:
863: char *
864: any_ntoa(const struct sockaddr *sa)
865: {
866: static char obuf[240];
867: const char *in = sa->sa_data;
868: char *out = obuf;
869: int len = sa->sa_len - offsetof(struct sockaddr, sa_data);
870:
871: *out++ = 'Q';
872: do {
873: *out++ = hexlist[(*in >> 4) & 15];
874: *out++ = hexlist[(*in++) & 15];
875: *out++ = '.';
876: } while (--len > 0 && (out + 3) < &obuf[sizeof(obuf) - 1]);
877: out[-1] = '\0';
878: return (obuf);
879: }
880:
881: char *
882: link_print(struct sockaddr *sa)
883: {
884: struct sockaddr_dl *sdl = (struct sockaddr_dl *)sa;
885: u_char *lla = (u_char *)sdl->sdl_data + sdl->sdl_nlen;
886:
887: if (sdl->sdl_nlen == 0 && sdl->sdl_alen == 0 &&
888: sdl->sdl_slen == 0) {
889: (void)snprintf(line, sizeof(line), "link#%d", sdl->sdl_index);
890: return (line);
891: }
892: switch (sdl->sdl_type) {
893: case IFT_ETHER:
894: case IFT_CARP:
895: return (ether_ntoa((struct ether_addr *)lla));
896: default:
897: return (link_ntoa(sdl));
898: }
1.13 claudio 899: }
900:
901: char *
1.30 claudio 902: mpls_op(u_int32_t type)
1.13 claudio 903: {
1.16 michele 904: switch (type & (MPLS_OP_PUSH | MPLS_OP_POP | MPLS_OP_SWAP)) {
1.21 michele 905: case MPLS_OP_LOCAL:
906: return ("LOCAL");
1.13 claudio 907: case MPLS_OP_POP:
908: return ("POP");
909: case MPLS_OP_SWAP:
910: return ("SWAP");
911: case MPLS_OP_PUSH:
912: return ("PUSH");
913: default:
914: return ("?");
915: }
916: }
917:
918: char *
1.30 claudio 919: label_print(struct sockaddr *sa)
1.13 claudio 920: {
1.30 claudio 921: struct sockaddr_mpls *smpls = (struct sockaddr_mpls *)sa;
1.13 claudio 922:
1.30 claudio 923: if (smpls)
924: (void)snprintf(line, sizeof(line), "%u",
925: ntohl(smpls->smpls_label) >> MPLS_LABEL_OFFSET);
926: else
927: (void)snprintf(line, sizeof(line), "-");
1.13 claudio 928:
929: return (line);
1.1 claudio 930: }
931:
932: void
933: index_pfk(struct sadb_msg *msg, void **headers)
934: {
935: struct sadb_ext *ext;
936:
937: for (ext = (struct sadb_ext *)(msg + 1);
938: (size_t)((u_int8_t *)ext - (u_int8_t *)msg) <
939: msg->sadb_msg_len * PFKEYV2_CHUNK && ext->sadb_ext_len > 0;
940: ext = (struct sadb_ext *)((u_int8_t *)ext +
941: ext->sadb_ext_len * PFKEYV2_CHUNK)) {
942: switch (ext->sadb_ext_type) {
943: case SADB_EXT_ADDRESS_SRC:
944: headers[SADB_EXT_ADDRESS_SRC] = (void *)ext;
945: break;
946: case SADB_EXT_ADDRESS_DST:
947: headers[SADB_EXT_ADDRESS_DST] = (void *)ext;
948: break;
949: case SADB_X_EXT_PROTOCOL:
950: headers[SADB_X_EXT_PROTOCOL] = (void *)ext;
951: break;
952: case SADB_X_EXT_SRC_FLOW:
953: headers[SADB_X_EXT_SRC_FLOW] = (void *)ext;
954: break;
955: case SADB_X_EXT_DST_FLOW:
956: headers[SADB_X_EXT_DST_FLOW] = (void *)ext;
957: break;
958: case SADB_X_EXT_SRC_MASK:
959: headers[SADB_X_EXT_SRC_MASK] = (void *)ext;
960: break;
961: case SADB_X_EXT_DST_MASK:
962: headers[SADB_X_EXT_DST_MASK] = (void *)ext;
963: break;
964: case SADB_X_EXT_FLOW_TYPE:
965: headers[SADB_X_EXT_FLOW_TYPE] = (void *)ext;
1.26 deraadt 966: break;
1.1 claudio 967: default:
968: /* Ignore. */
969: break;
970: }
971: }
972: }