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1.42 ! mpi 1: /* $OpenBSD: show.c,v 1.41 2014/04/17 15:36:53 claudio 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/socket.h>
35: #include <sys/sysctl.h>
36:
37: #include <net/if.h>
38: #include <net/if_dl.h>
39: #include <net/if_types.h>
40: #include <net/pfkeyv2.h>
41: #include <net/route.h>
42: #include <netinet/in.h>
43: #include <netinet/if_ether.h>
44: #include <netinet/ip_ipsp.h>
1.13 claudio 45: #include <netmpls/mpls.h>
1.1 claudio 46: #include <arpa/inet.h>
47:
48: #include <err.h>
49: #include <errno.h>
50: #include <netdb.h>
51: #include <stdio.h>
52: #include <stddef.h>
53: #include <stdlib.h>
54: #include <string.h>
55: #include <unistd.h>
56:
57: #include "netstat.h"
58:
59: char *any_ntoa(const struct sockaddr *);
60: char *link_print(struct sockaddr *);
1.30 claudio 61: char *label_print(struct sockaddr *);
1.1 claudio 62:
63: #define ROUNDUP(a) \
64: ((a) > 0 ? (1 + (((a) - 1) | (sizeof(long) - 1))) : sizeof(long))
65: #define ADVANCE(x, n) (x += ROUNDUP((n)->sa_len))
66:
67: #define PFKEYV2_CHUNK sizeof(u_int64_t)
68:
69: /*
70: * Definitions for showing gateway flags.
71: */
72: struct bits {
73: int b_mask;
74: char b_val;
75: };
76: static const struct bits bits[] = {
77: { RTF_UP, 'U' },
78: { RTF_GATEWAY, 'G' },
79: { RTF_HOST, 'H' },
80: { RTF_REJECT, 'R' },
81: { RTF_BLACKHOLE, 'B' },
82: { RTF_DYNAMIC, 'D' },
83: { RTF_MODIFIED, 'M' },
84: { RTF_DONE, 'd' }, /* Completed -- for routing messages only */
85: { RTF_MASK, 'm' }, /* Mask Present -- for routing messages only */
86: { RTF_CLONING, 'C' },
87: { RTF_XRESOLVE, 'X' },
88: { RTF_LLINFO, 'L' },
89: { RTF_STATIC, 'S' },
90: { RTF_PROTO1, '1' },
91: { RTF_PROTO2, '2' },
92: { RTF_PROTO3, '3' },
93: { RTF_CLONED, 'c' },
1.18 claudio 94: { RTF_MPATH, 'P' },
1.25 michele 95: { RTF_MPLS, 'T' },
1.42 ! mpi 96: { RTF_LOCAL, 'l' },
! 97: { RTF_BROADCAST, 'b' },
1.1 claudio 98: { 0 }
99: };
100:
1.41 claudio 101: int WID_DST(int);
1.1 claudio 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
1.35 mikeb 119: p_rttables(int af, u_int tableid)
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;
1.35 mikeb 134: mib[6] = tableid;
135: mcnt = 7;
1.38 deraadt 136: while (1) {
137: if (sysctl(mib, mcnt, NULL, &needed, NULL, 0) == -1)
138: err(1, "route-sysctl-estimate");
139: if (needed == 0)
140: break;
141: if ((buf = realloc(buf, needed)) == NULL)
1.1 claudio 142: err(1, NULL);
1.38 deraadt 143: if (sysctl(mib, mcnt, buf, &needed, NULL, 0) == -1) {
144: if (errno == ENOMEM)
145: continue;
1.1 claudio 146: err(1, "sysctl of routing table");
1.38 deraadt 147: }
1.1 claudio 148: lim = buf + needed;
1.38 deraadt 149: break;
1.1 claudio 150: }
151:
152: printf("Routing tables\n");
153:
154: if (buf) {
155: for (next = buf; next < lim; next += rtm->rtm_msglen) {
156: rtm = (struct rt_msghdr *)next;
1.8 claudio 157: if (rtm->rtm_version != RTM_VERSION)
158: continue;
1.23 chris 159: sa = (struct sockaddr *)(next + rtm->rtm_hdrlen);
1.1 claudio 160: if (af != AF_UNSPEC && sa->sa_family != af)
161: continue;
162: p_rtentry(rtm);
163: }
164: free(buf);
165: buf = NULL;
166: }
167:
168: if (af != 0 && af != PF_KEY)
169: return;
170:
171: mib[0] = CTL_NET;
172: mib[1] = PF_KEY;
173: mib[2] = PF_KEY_V2;
174: mib[3] = NET_KEY_SPD_DUMP;
175: mib[4] = mib[5] = 0;
1.38 deraadt 176: while (1) {
177: if (sysctl(mib, 4, NULL, &needed, NULL, 0) == -1) {
178: if (errno == ENOPROTOOPT)
179: return;
180: err(1, "spd-sysctl-estimate");
181: }
182: if (needed == 0)
183: break;
184: if ((buf = realloc(buf, needed)) == NULL)
1.1 claudio 185: err(1, NULL);
1.38 deraadt 186: if (sysctl(mib, 4, buf, &needed, NULL, 0) == -1) {
187: if (errno == ENOMEM)
188: continue;
1.1 claudio 189: err(1,"sysctl of spd");
1.38 deraadt 190: }
1.1 claudio 191: lim = buf + needed;
1.38 deraadt 192: break;
1.1 claudio 193: }
194:
195: if (buf) {
196: printf("\nEncap:\n");
197:
198: for (next = buf; next < lim; next += msg->sadb_msg_len *
199: PFKEYV2_CHUNK) {
200: msg = (struct sadb_msg *)next;
201: if (msg->sadb_msg_len == 0)
202: break;
203: p_pfkentry(msg);
204: }
205: free(buf);
206: buf = NULL;
207: }
208: }
209:
1.12 deraadt 210: /*
1.1 claudio 211: * column widths; each followed by one space
212: * width of destination/gateway column
213: * strlen("fe80::aaaa:bbbb:cccc:dddd@gif0") == 30, strlen("/128") == 4
214: */
215: #define WID_GW(af) ((af) == AF_INET6 ? (nflag ? 30 : 18) : 18)
216:
1.41 claudio 217: int
1.13 claudio 218: WID_DST(int af)
219: {
220:
221: if (nflag)
222: switch (af) {
223: case AF_MPLS:
1.30 claudio 224: return 9;
1.13 claudio 225: case AF_INET6:
226: return 34;
227: default:
228: return 18;
229: }
230: else
231: switch (af) {
232: case AF_MPLS:
1.30 claudio 233: return 9;
1.13 claudio 234: default:
235: return 18;
236: }
237: }
238:
1.1 claudio 239: /*
240: * Print header for routing table columns.
241: */
242: void
243: pr_rthdr(int af, int Aflag)
244: {
245: if (Aflag)
246: printf("%-*.*s ", PLEN, PLEN, "Address");
1.13 claudio 247: switch (af) {
248: case PF_KEY:
1.1 claudio 249: printf("%-18s %-5s %-18s %-5s %-5s %-22s\n",
250: "Source", "Port", "Destination",
251: "Port", "Proto", "SA(Address/Proto/Type/Direction)");
1.13 claudio 252: break;
253: case PF_MPLS:
1.30 claudio 254: printf("%-9s %-9s %-6s %-18s %-6.6s %5.5s %8.8s %5.5s %4.4s %s\n",
1.13 claudio 255: "In label", "Out label", "Op", "Gateway",
256: "Flags", "Refs", "Use", "Mtu", "Prio", "Interface");
257: break;
258: default:
1.32 bluhm 259: printf("%-*.*s %-*.*s %-6.6s %5.5s %8.8s %5.5s %4.4s %s",
1.13 claudio 260: WID_DST(af), WID_DST(af), "Destination",
261: WID_GW(af), WID_GW(af), "Gateway",
262: "Flags", "Refs", "Use", "Mtu", "Prio", "Iface");
1.33 bluhm 263: if (vflag && !Aflag)
1.32 bluhm 264: printf(" %s", "Label");
265: putchar('\n');
1.13 claudio 266: break;
267: }
1.1 claudio 268: }
269:
270: static void
271: get_rtaddrs(int addrs, struct sockaddr *sa, struct sockaddr **rti_info)
272: {
273: int i;
274:
275: for (i = 0; i < RTAX_MAX; i++) {
276: if (addrs & (1 << i)) {
277: rti_info[i] = sa;
278: sa = (struct sockaddr *)((char *)(sa) +
279: ROUNDUP(sa->sa_len));
280: } else
281: rti_info[i] = NULL;
282: }
283: }
284:
285: /*
286: * Print a routing table entry.
287: */
288: void
289: p_rtentry(struct rt_msghdr *rtm)
290: {
291: static int old_af = -1;
1.22 chris 292: struct sockaddr *sa = (struct sockaddr *)((char *)rtm + rtm->rtm_hdrlen);
1.1 claudio 293: struct sockaddr *mask, *rti_info[RTAX_MAX];
294: char ifbuf[IF_NAMESIZE];
295:
296: if (sa->sa_family == AF_KEY)
297: return;
298:
1.5 pyr 299: get_rtaddrs(rtm->rtm_addrs, sa, rti_info);
1.41 claudio 300:
1.5 pyr 301: if (Fflag && rti_info[RTAX_GATEWAY]->sa_family != sa->sa_family) {
302: return;
303: }
1.1 claudio 304: if (old_af != sa->sa_family) {
305: old_af = sa->sa_family;
306: pr_family(sa->sa_family);
307: pr_rthdr(sa->sa_family, 0);
308: }
309:
310: mask = rti_info[RTAX_NETMASK];
311: if ((sa = rti_info[RTAX_DST]) == NULL)
312: return;
313:
314: p_sockaddr(sa, mask, rtm->rtm_flags, WID_DST(sa->sa_family));
1.19 michele 315: p_sockaddr_mpls(sa, rti_info[RTAX_SRC], rtm->rtm_mpls,
1.17 michele 316: WID_DST(sa->sa_family));
317:
1.1 claudio 318: p_sockaddr(rti_info[RTAX_GATEWAY], NULL, RTF_HOST,
319: WID_GW(sa->sa_family));
1.30 claudio 320:
1.1 claudio 321: p_flags(rtm->rtm_flags, "%-6.6s ");
1.13 claudio 322: printf("%5u %8llu ", rtm->rtm_rmx.rmx_refcnt,
1.1 claudio 323: rtm->rtm_rmx.rmx_pksent);
324: if (rtm->rtm_rmx.rmx_mtu)
1.13 claudio 325: printf("%5u ", rtm->rtm_rmx.rmx_mtu);
1.1 claudio 326: else
1.13 claudio 327: printf("%5s ", "-");
1.1 claudio 328: putchar((rtm->rtm_rmx.rmx_locks & RTV_MTU) ? 'L' : ' ');
1.32 bluhm 329: printf(" %2d %-5.16s", rtm->rtm_priority,
1.13 claudio 330: if_indextoname(rtm->rtm_index, ifbuf));
1.32 bluhm 331: if (vflag && rti_info[RTAX_LABEL])
332: printf(" %s", ((struct sockaddr_rtlabel *)
333: rti_info[RTAX_LABEL])->sr_label);
1.1 claudio 334: putchar('\n');
335: }
336:
337: /*
338: * Print a pfkey/encap entry.
339: */
340: void
341: p_pfkentry(struct sadb_msg *msg)
342: {
1.13 claudio 343: static int old = 0;
1.1 claudio 344: struct sadb_address *saddr;
345: struct sadb_protocol *sap, *saft;
346: struct sockaddr *sa, *mask;
347: void *headers[SADB_EXT_MAX + 1];
348:
349: if (!old) {
350: pr_rthdr(PF_KEY, 0);
351: old++;
352: }
353:
354: bzero(headers, sizeof(headers));
355: index_pfk(msg, headers);
356:
357: /* These are always set */
358: saddr = headers[SADB_X_EXT_SRC_FLOW];
359: sa = (struct sockaddr *)(saddr + 1);
360: saddr = headers[SADB_X_EXT_SRC_MASK];
361: mask = (struct sockaddr *)(saddr + 1);
362: p_encap(sa, mask, WID_DST(sa->sa_family));
363:
364: /* These are always set, too. */
365: saddr = headers[SADB_X_EXT_DST_FLOW];
366: sa = (struct sockaddr *)(saddr + 1);
367: saddr = headers[SADB_X_EXT_DST_MASK];
368: mask = (struct sockaddr *)(saddr + 1);
369: p_encap(sa, mask, WID_DST(sa->sa_family));
370:
371: /* Bypass and deny flows do not set SADB_EXT_ADDRESS_DST! */
372: sap = headers[SADB_X_EXT_PROTOCOL];
373: saft = headers[SADB_X_EXT_FLOW_TYPE];
374: saddr = headers[SADB_EXT_ADDRESS_DST];
375: if (saddr)
376: sa = (struct sockaddr *)(saddr + 1);
377: else
378: sa = NULL;
379: p_protocol(sap, sa, saft, msg->sadb_msg_satype);
380:
381: printf("\n");
382: }
383:
384: /*
385: * Print address family header before a section of the routing table.
386: */
387: void
388: pr_family(int af)
389: {
390: char *afname;
391:
392: switch (af) {
393: case AF_INET:
394: afname = "Internet";
395: break;
396: case AF_INET6:
397: afname = "Internet6";
398: break;
399: case PF_KEY:
400: afname = "Encap";
401: break;
1.13 claudio 402: case AF_MPLS:
403: afname = "MPLS";
404: break;
1.1 claudio 405: default:
406: afname = NULL;
407: break;
408: }
409: if (afname)
410: printf("\n%s:\n", afname);
411: else
412: printf("\nProtocol Family %d:\n", af);
413: }
414:
415: void
416: p_addr(struct sockaddr *sa, struct sockaddr *mask, int flags)
417: {
418: p_sockaddr(sa, mask, flags, WID_DST(sa->sa_family));
419: }
420:
421: void
422: p_gwaddr(struct sockaddr *sa, int af)
423: {
424: p_sockaddr(sa, 0, RTF_HOST, WID_GW(af));
425: }
426:
427: void
428: p_encap(struct sockaddr *sa, struct sockaddr *mask, int width)
429: {
1.13 claudio 430: char *cp;
431: unsigned short port = 0;
1.1 claudio 432:
1.2 todd 433: if (mask)
434: cp = netname(sa, mask);
435: else
436: cp = routename(sa);
1.1 claudio 437: switch (sa->sa_family) {
1.9 claudio 438: case AF_INET:
439: port = ntohs(((struct sockaddr_in *)sa)->sin_port);
440: break;
1.2 todd 441: case AF_INET6:
442: port = ntohs(((struct sockaddr_in6 *)sa)->sin6_port);
1.1 claudio 443: break;
444: }
445: if (width < 0)
446: printf("%s", cp);
447: else {
448: if (nflag)
449: printf("%-*s %-5u ", width, cp, port);
450: else
451: printf("%-*.*s %-5u ", width, width, cp, port);
452: }
453: }
454:
455: void
456: p_protocol(struct sadb_protocol *sap, struct sockaddr *sa, struct sadb_protocol
457: *saft, int proto)
458: {
459: printf("%-6u", sap->sadb_protocol_proto);
1.9 claudio 460:
1.1 claudio 461: if (sa)
462: p_sockaddr(sa, NULL, 0, -1);
463: else
464: printf("none");
465:
466: switch (proto) {
467: case SADB_SATYPE_ESP:
468: printf("/esp");
469: break;
470: case SADB_SATYPE_AH:
471: printf("/ah");
472: break;
473: case SADB_X_SATYPE_IPCOMP:
474: printf("/ipcomp");
475: break;
476: case SADB_X_SATYPE_IPIP:
477: printf("/ipip");
478: break;
479: default:
480: printf("/<unknown>");
481: }
482:
483: switch(saft->sadb_protocol_proto) {
484: case SADB_X_FLOW_TYPE_USE:
485: printf("/use");
486: break;
487: case SADB_X_FLOW_TYPE_REQUIRE:
488: printf("/require");
489: break;
490: case SADB_X_FLOW_TYPE_ACQUIRE:
491: printf("/acquire");
492: break;
493: case SADB_X_FLOW_TYPE_DENY:
494: printf("/deny");
495: break;
496: case SADB_X_FLOW_TYPE_BYPASS:
497: printf("/bypass");
498: break;
499: case SADB_X_FLOW_TYPE_DONTACQ:
500: printf("/dontacq");
501: break;
502: default:
503: printf("/<unknown type>");
504: }
505:
506: switch(saft->sadb_protocol_direction) {
507: case IPSP_DIRECTION_IN:
508: printf("/in");
509: break;
510: case IPSP_DIRECTION_OUT:
511: printf("/out");
512: break;
513: default:
514: printf("/<unknown>");
515: }
516: }
517:
518: void
519: p_sockaddr(struct sockaddr *sa, struct sockaddr *mask, int flags, int width)
520: {
521: char *cp;
522:
523: switch (sa->sa_family) {
524: case AF_INET6:
525: {
526: struct sockaddr_in6 *sa6 = (struct sockaddr_in6 *)sa;
527: struct in6_addr *in6 = &sa6->sin6_addr;
528:
529: /*
530: * XXX: This is a special workaround for KAME kernels.
531: * sin6_scope_id field of SA should be set in the future.
532: */
533: if (IN6_IS_ADDR_LINKLOCAL(in6) ||
1.3 itojun 534: IN6_IS_ADDR_MC_LINKLOCAL(in6) ||
535: IN6_IS_ADDR_MC_INTFACELOCAL(in6)) {
1.1 claudio 536: /* XXX: override is ok? */
537: sa6->sin6_scope_id = (u_int32_t)ntohs(*(u_short *)
538: &in6->s6_addr[2]);
539: *(u_short *)&in6->s6_addr[2] = 0;
540: }
541: if (flags & RTF_HOST)
542: cp = routename((struct sockaddr *)sa6);
543: else
544: cp = netname((struct sockaddr *)sa6, mask);
545: break;
546: }
1.16 michele 547: case AF_MPLS:
1.17 michele 548: return;
1.1 claudio 549: default:
550: if ((flags & RTF_HOST) || mask == NULL)
551: cp = routename(sa);
552: else
553: cp = netname(sa, mask);
554: break;
555: }
556: if (width < 0)
557: printf("%s", cp);
558: else {
559: if (nflag)
560: printf("%-*s ", width, cp);
561: else
562: printf("%-*.*s ", width, width, cp);
563: }
564: }
565:
1.17 michele 566: static char line[MAXHOSTNAMELEN];
567: static char domain[MAXHOSTNAMELEN];
568:
569: void
570: p_sockaddr_mpls(struct sockaddr *in, struct sockaddr *out, int flags, int width)
571: {
572: if (in->sa_family != AF_MPLS)
573: return;
574:
1.30 claudio 575: if (flags & MPLS_OP_POP || flags == MPLS_OP_LOCAL) {
576: printf("%-*s ", width, label_print(in));
577: printf("%-*s ", width, label_print(NULL));
578: } else {
579: printf("%-*s ", width, label_print(in));
580: printf("%-*s ", width, label_print(out));
581: }
1.17 michele 582:
1.30 claudio 583: printf("%-6s ", mpls_op(flags));
1.17 michele 584: }
585:
1.1 claudio 586: void
587: p_flags(int f, char *format)
588: {
589: char name[33], *flags;
590: const struct bits *p = bits;
591:
592: for (flags = name; p->b_mask && flags < &name[sizeof(name) - 2]; p++)
593: if (p->b_mask & f)
594: *flags++ = p->b_val;
595: *flags = '\0';
596: printf(format, name);
597: }
598:
599: char *
600: routename(struct sockaddr *sa)
601: {
602: char *cp = NULL;
603: static int first = 1;
604:
605: if (first) {
606: first = 0;
607: if (gethostname(domain, sizeof(domain)) == 0 &&
608: (cp = strchr(domain, '.')))
609: (void)strlcpy(domain, cp + 1, sizeof(domain));
610: else
611: domain[0] = '\0';
612: cp = NULL;
613: }
614:
615: if (sa->sa_len == 0) {
616: (void)strlcpy(line, "default", sizeof(line));
617: return (line);
618: }
619:
620: switch (sa->sa_family) {
621: case AF_INET:
622: return
623: (routename4(((struct sockaddr_in *)sa)->sin_addr.s_addr));
624:
625: case AF_INET6:
626: {
627: struct sockaddr_in6 sin6;
628:
629: memset(&sin6, 0, sizeof(sin6));
630: memcpy(&sin6, sa, sa->sa_len);
631: sin6.sin6_len = sizeof(struct sockaddr_in6);
632: sin6.sin6_family = AF_INET6;
633: if (sa->sa_len == sizeof(struct sockaddr_in6) &&
634: (IN6_IS_ADDR_LINKLOCAL(&sin6.sin6_addr) ||
1.3 itojun 635: IN6_IS_ADDR_MC_LINKLOCAL(&sin6.sin6_addr) ||
636: IN6_IS_ADDR_MC_INTFACELOCAL(&sin6.sin6_addr)) &&
1.1 claudio 637: sin6.sin6_scope_id == 0) {
638: sin6.sin6_scope_id =
639: ntohs(*(u_int16_t *)&sin6.sin6_addr.s6_addr[2]);
640: sin6.sin6_addr.s6_addr[2] = 0;
641: sin6.sin6_addr.s6_addr[3] = 0;
642: }
643: return (routename6(&sin6));
644: }
645:
646: case AF_LINK:
647: return (link_print(sa));
1.13 claudio 648: case AF_MPLS:
1.30 claudio 649: return (label_print(sa));
1.1 claudio 650: case AF_UNSPEC:
651: if (sa->sa_len == sizeof(struct sockaddr_rtlabel)) {
652: static char name[RTLABEL_LEN];
653: struct sockaddr_rtlabel *sr;
654:
655: sr = (struct sockaddr_rtlabel *)sa;
1.9 claudio 656: (void)strlcpy(name, sr->sr_label, sizeof(name));
1.1 claudio 657: return (name);
658: }
659: /* FALLTHROUGH */
660: default:
661: (void)snprintf(line, sizeof(line), "(%d) %s",
662: sa->sa_family, any_ntoa(sa));
663: break;
664: }
665: return (line);
666: }
667:
668: char *
669: routename4(in_addr_t in)
670: {
671: char *cp = NULL;
672: struct in_addr ina;
673: struct hostent *hp;
674:
675: if (in == INADDR_ANY)
676: cp = "default";
677: if (!cp && !nflag) {
678: if ((hp = gethostbyaddr((char *)&in,
679: sizeof(in), AF_INET)) != NULL) {
680: if ((cp = strchr(hp->h_name, '.')) &&
681: !strcmp(cp + 1, domain))
682: *cp = '\0';
683: cp = hp->h_name;
684: }
685: }
686: ina.s_addr = in;
687: strlcpy(line, cp ? cp : inet_ntoa(ina), sizeof(line));
688:
689: return (line);
690: }
691:
692: char *
693: routename6(struct sockaddr_in6 *sin6)
694: {
695: int niflags = 0;
696:
697: if (nflag)
698: niflags |= NI_NUMERICHOST;
699: else
700: niflags |= NI_NOFQDN;
701:
702: if (getnameinfo((struct sockaddr *)sin6, sin6->sin6_len,
703: line, sizeof(line), NULL, 0, niflags) != 0)
704: strncpy(line, "invalid", sizeof(line));
705:
706: return (line);
707: }
708:
709: /*
710: * Return the name of the network whose address is given.
711: * The address is assumed to be that of a net or subnet, not a host.
712: */
713: char *
714: netname4(in_addr_t in, in_addr_t mask)
715: {
716: char *cp = NULL;
717: struct netent *np = NULL;
718: int mbits;
719:
720: in = ntohl(in);
721: mask = ntohl(mask);
722: if (!nflag && in != INADDR_ANY) {
723: if ((np = getnetbyaddr(in, AF_INET)) != NULL)
724: cp = np->n_name;
725: }
1.28 dlg 726: if (in == INADDR_ANY && mask == INADDR_ANY)
1.1 claudio 727: cp = "default";
728: mbits = mask ? 33 - ffs(mask) : 0;
729: if (cp)
730: strlcpy(line, cp, sizeof(line));
731: #define C(x) ((x) & 0xff)
732: else if (mbits < 9)
733: snprintf(line, sizeof(line), "%u/%d", C(in >> 24), mbits);
734: else if (mbits < 17)
735: snprintf(line, sizeof(line), "%u.%u/%d",
736: C(in >> 24) , C(in >> 16), mbits);
737: else if (mbits < 25)
738: snprintf(line, sizeof(line), "%u.%u.%u/%d",
739: C(in >> 24), C(in >> 16), C(in >> 8), mbits);
740: else
741: snprintf(line, sizeof(line), "%u.%u.%u.%u/%d", C(in >> 24),
742: C(in >> 16), C(in >> 8), C(in), mbits);
743: #undef C
744: return (line);
745: }
746:
747: char *
748: netname6(struct sockaddr_in6 *sa6, struct sockaddr_in6 *mask)
749: {
750: struct sockaddr_in6 sin6;
751: u_char *p;
752: int masklen, final = 0, illegal = 0;
753: int i, lim, flag, error;
754: char hbuf[NI_MAXHOST];
755:
756: sin6 = *sa6;
757:
758: flag = 0;
759: masklen = 0;
760: if (mask) {
761: lim = mask->sin6_len - offsetof(struct sockaddr_in6, sin6_addr);
1.4 claudio 762: lim = lim < (int)sizeof(struct in6_addr) ?
1.41 claudio 763: lim : (int)sizeof(struct in6_addr);
1.1 claudio 764: for (p = (u_char *)&mask->sin6_addr, i = 0; i < lim; p++) {
765: if (final && *p) {
766: illegal++;
767: sin6.sin6_addr.s6_addr[i++] = 0x00;
768: continue;
769: }
770:
771: switch (*p & 0xff) {
772: case 0xff:
773: masklen += 8;
774: break;
775: case 0xfe:
776: masklen += 7;
777: final++;
778: break;
779: case 0xfc:
780: masklen += 6;
781: final++;
782: break;
783: case 0xf8:
784: masklen += 5;
785: final++;
786: break;
787: case 0xf0:
788: masklen += 4;
789: final++;
790: break;
791: case 0xe0:
792: masklen += 3;
793: final++;
794: break;
795: case 0xc0:
796: masklen += 2;
797: final++;
798: break;
799: case 0x80:
800: masklen += 1;
801: final++;
802: break;
803: case 0x00:
804: final++;
805: break;
806: default:
807: final++;
808: illegal++;
809: break;
810: }
811:
812: if (!illegal)
813: sin6.sin6_addr.s6_addr[i++] &= *p;
814: else
815: sin6.sin6_addr.s6_addr[i++] = 0x00;
816: }
1.41 claudio 817: while (i < (int)sizeof(struct in6_addr))
1.1 claudio 818: sin6.sin6_addr.s6_addr[i++] = 0x00;
819: } else
820: masklen = 128;
821:
822: if (masklen == 0 && IN6_IS_ADDR_UNSPECIFIED(&sin6.sin6_addr))
823: return ("default");
824:
825: if (illegal)
826: warnx("illegal prefixlen");
827:
828: if (nflag)
829: flag |= NI_NUMERICHOST;
830: error = getnameinfo((struct sockaddr *)&sin6, sin6.sin6_len,
831: hbuf, sizeof(hbuf), NULL, 0, flag);
832: if (error)
833: snprintf(hbuf, sizeof(hbuf), "invalid");
834:
835: snprintf(line, sizeof(line), "%s/%d", hbuf, masklen);
836: return (line);
837: }
838:
839: /*
840: * Return the name of the network whose address is given.
841: * The address is assumed to be that of a net or subnet, not a host.
842: */
843: char *
844: netname(struct sockaddr *sa, struct sockaddr *mask)
845: {
846: switch (sa->sa_family) {
847: case AF_INET:
848: return netname4(((struct sockaddr_in *)sa)->sin_addr.s_addr,
1.29 claudio 849: mask->sa_len == 0 ? 0 :
1.1 claudio 850: ((struct sockaddr_in *)mask)->sin_addr.s_addr);
851: case AF_INET6:
852: return netname6((struct sockaddr_in6 *)sa,
853: (struct sockaddr_in6 *)mask);
854: case AF_LINK:
855: return (link_print(sa));
1.13 claudio 856: case AF_MPLS:
1.30 claudio 857: return (label_print(sa));
1.1 claudio 858: default:
859: snprintf(line, sizeof(line), "af %d: %s",
860: sa->sa_family, any_ntoa(sa));
861: break;
862: }
863: return (line);
864: }
865:
866: static const char hexlist[] = "0123456789abcdef";
867:
868: char *
869: any_ntoa(const struct sockaddr *sa)
870: {
871: static char obuf[240];
872: const char *in = sa->sa_data;
873: char *out = obuf;
874: int len = sa->sa_len - offsetof(struct sockaddr, sa_data);
875:
876: *out++ = 'Q';
877: do {
878: *out++ = hexlist[(*in >> 4) & 15];
879: *out++ = hexlist[(*in++) & 15];
880: *out++ = '.';
881: } while (--len > 0 && (out + 3) < &obuf[sizeof(obuf) - 1]);
882: out[-1] = '\0';
883: return (obuf);
884: }
885:
886: char *
887: link_print(struct sockaddr *sa)
888: {
889: struct sockaddr_dl *sdl = (struct sockaddr_dl *)sa;
890: u_char *lla = (u_char *)sdl->sdl_data + sdl->sdl_nlen;
891:
892: if (sdl->sdl_nlen == 0 && sdl->sdl_alen == 0 &&
893: sdl->sdl_slen == 0) {
894: (void)snprintf(line, sizeof(line), "link#%d", sdl->sdl_index);
895: return (line);
896: }
897: switch (sdl->sdl_type) {
898: case IFT_ETHER:
899: case IFT_CARP:
900: return (ether_ntoa((struct ether_addr *)lla));
901: default:
902: return (link_ntoa(sdl));
903: }
1.13 claudio 904: }
905:
906: char *
1.30 claudio 907: mpls_op(u_int32_t type)
1.13 claudio 908: {
1.16 michele 909: switch (type & (MPLS_OP_PUSH | MPLS_OP_POP | MPLS_OP_SWAP)) {
1.21 michele 910: case MPLS_OP_LOCAL:
911: return ("LOCAL");
1.13 claudio 912: case MPLS_OP_POP:
913: return ("POP");
914: case MPLS_OP_SWAP:
915: return ("SWAP");
916: case MPLS_OP_PUSH:
917: return ("PUSH");
918: default:
919: return ("?");
920: }
921: }
922:
923: char *
1.30 claudio 924: label_print(struct sockaddr *sa)
1.13 claudio 925: {
1.30 claudio 926: struct sockaddr_mpls *smpls = (struct sockaddr_mpls *)sa;
1.13 claudio 927:
1.30 claudio 928: if (smpls)
929: (void)snprintf(line, sizeof(line), "%u",
930: ntohl(smpls->smpls_label) >> MPLS_LABEL_OFFSET);
931: else
932: (void)snprintf(line, sizeof(line), "-");
1.13 claudio 933:
934: return (line);
1.1 claudio 935: }
936:
937: void
938: index_pfk(struct sadb_msg *msg, void **headers)
939: {
940: struct sadb_ext *ext;
941:
942: for (ext = (struct sadb_ext *)(msg + 1);
943: (size_t)((u_int8_t *)ext - (u_int8_t *)msg) <
944: msg->sadb_msg_len * PFKEYV2_CHUNK && ext->sadb_ext_len > 0;
945: ext = (struct sadb_ext *)((u_int8_t *)ext +
946: ext->sadb_ext_len * PFKEYV2_CHUNK)) {
947: switch (ext->sadb_ext_type) {
948: case SADB_EXT_ADDRESS_SRC:
949: headers[SADB_EXT_ADDRESS_SRC] = (void *)ext;
950: break;
951: case SADB_EXT_ADDRESS_DST:
952: headers[SADB_EXT_ADDRESS_DST] = (void *)ext;
953: break;
954: case SADB_X_EXT_PROTOCOL:
955: headers[SADB_X_EXT_PROTOCOL] = (void *)ext;
956: break;
957: case SADB_X_EXT_SRC_FLOW:
958: headers[SADB_X_EXT_SRC_FLOW] = (void *)ext;
959: break;
960: case SADB_X_EXT_DST_FLOW:
961: headers[SADB_X_EXT_DST_FLOW] = (void *)ext;
962: break;
963: case SADB_X_EXT_SRC_MASK:
964: headers[SADB_X_EXT_SRC_MASK] = (void *)ext;
965: break;
966: case SADB_X_EXT_DST_MASK:
967: headers[SADB_X_EXT_DST_MASK] = (void *)ext;
968: break;
969: case SADB_X_EXT_FLOW_TYPE:
970: headers[SADB_X_EXT_FLOW_TYPE] = (void *)ext;
1.26 deraadt 971: break;
1.1 claudio 972: default:
973: /* Ignore. */
974: break;
975: }
976: }
977: }