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1.35 ! mikeb 1: /* $OpenBSD: show.c,v 1.34 2010/10/11 12:33:36 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/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
1.35 ! 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;
1.10 claudio 136:
1.34 claudio 137: if (sysctl(mib, mcnt, NULL, &needed, NULL, 0) < 0)
1.1 claudio 138: err(1, "route-sysctl-estimate");
139: if (needed > 0) {
140: if ((buf = malloc(needed)) == 0)
141: err(1, NULL);
1.34 claudio 142: if (sysctl(mib, mcnt, buf, &needed, NULL, 0) < 0)
1.1 claudio 143: err(1, "sysctl of routing table");
144: lim = buf + needed;
145: }
146:
147: printf("Routing tables\n");
148:
149: if (buf) {
150: for (next = buf; next < lim; next += rtm->rtm_msglen) {
151: rtm = (struct rt_msghdr *)next;
1.8 claudio 152: if (rtm->rtm_version != RTM_VERSION)
153: continue;
1.23 chris 154: sa = (struct sockaddr *)(next + rtm->rtm_hdrlen);
1.1 claudio 155: if (af != AF_UNSPEC && sa->sa_family != af)
156: continue;
157: p_rtentry(rtm);
158: }
159: free(buf);
160: buf = NULL;
161: }
162:
163: if (af != 0 && af != PF_KEY)
164: return;
165:
166: mib[0] = CTL_NET;
167: mib[1] = PF_KEY;
168: mib[2] = PF_KEY_V2;
169: mib[3] = NET_KEY_SPD_DUMP;
170: mib[4] = mib[5] = 0;
171:
172: if (sysctl(mib, 4, NULL, &needed, NULL, 0) == -1) {
173: if (errno == ENOPROTOOPT)
174: return;
175: err(1, "spd-sysctl-estimate");
176: }
177: if (needed > 0) {
178: if ((buf = malloc(needed)) == 0)
179: err(1, NULL);
180: if (sysctl(mib, 4, buf, &needed, NULL, 0) == -1)
181: err(1,"sysctl of spd");
182: lim = buf + needed;
183: }
184:
185: if (buf) {
186: printf("\nEncap:\n");
187:
188: for (next = buf; next < lim; next += msg->sadb_msg_len *
189: PFKEYV2_CHUNK) {
190: msg = (struct sadb_msg *)next;
191: if (msg->sadb_msg_len == 0)
192: break;
193: p_pfkentry(msg);
194: }
195: free(buf);
196: buf = NULL;
197: }
198: }
199:
1.12 deraadt 200: /*
1.1 claudio 201: * column widths; each followed by one space
202: * width of destination/gateway column
203: * strlen("fe80::aaaa:bbbb:cccc:dddd@gif0") == 30, strlen("/128") == 4
204: */
205: #define WID_GW(af) ((af) == AF_INET6 ? (nflag ? 30 : 18) : 18)
206:
1.13 claudio 207: int
208: WID_DST(int af)
209: {
210:
211: if (nflag)
212: switch (af) {
213: case AF_MPLS:
1.30 claudio 214: return 9;
1.13 claudio 215: case AF_INET6:
216: return 34;
217: default:
218: return 18;
219: }
220: else
221: switch (af) {
222: case AF_MPLS:
1.30 claudio 223: return 9;
1.13 claudio 224: default:
225: return 18;
226: }
227: }
228:
1.1 claudio 229: /*
230: * Print header for routing table columns.
231: */
232: void
233: pr_rthdr(int af, int Aflag)
234: {
235: if (Aflag)
236: printf("%-*.*s ", PLEN, PLEN, "Address");
1.13 claudio 237: switch (af) {
238: case PF_KEY:
1.1 claudio 239: printf("%-18s %-5s %-18s %-5s %-5s %-22s\n",
240: "Source", "Port", "Destination",
241: "Port", "Proto", "SA(Address/Proto/Type/Direction)");
1.13 claudio 242: break;
243: case PF_MPLS:
1.30 claudio 244: printf("%-9s %-9s %-6s %-18s %-6.6s %5.5s %8.8s %5.5s %4.4s %s\n",
1.13 claudio 245: "In label", "Out label", "Op", "Gateway",
246: "Flags", "Refs", "Use", "Mtu", "Prio", "Interface");
247: break;
248: default:
1.32 bluhm 249: printf("%-*.*s %-*.*s %-6.6s %5.5s %8.8s %5.5s %4.4s %s",
1.13 claudio 250: WID_DST(af), WID_DST(af), "Destination",
251: WID_GW(af), WID_GW(af), "Gateway",
252: "Flags", "Refs", "Use", "Mtu", "Prio", "Iface");
1.33 bluhm 253: if (vflag && !Aflag)
1.32 bluhm 254: printf(" %s", "Label");
255: putchar('\n');
1.13 claudio 256: break;
257: }
1.1 claudio 258: }
259:
260: static void
261: get_rtaddrs(int addrs, struct sockaddr *sa, struct sockaddr **rti_info)
262: {
263: int i;
264:
265: for (i = 0; i < RTAX_MAX; i++) {
266: if (addrs & (1 << i)) {
267: rti_info[i] = sa;
268: sa = (struct sockaddr *)((char *)(sa) +
269: ROUNDUP(sa->sa_len));
270: } else
271: rti_info[i] = NULL;
272: }
273: }
274:
275: /*
276: * Print a routing table entry.
277: */
278: void
279: p_rtentry(struct rt_msghdr *rtm)
280: {
281: static int old_af = -1;
1.22 chris 282: struct sockaddr *sa = (struct sockaddr *)((char *)rtm + rtm->rtm_hdrlen);
1.1 claudio 283: struct sockaddr *mask, *rti_info[RTAX_MAX];
284: char ifbuf[IF_NAMESIZE];
285:
286: if (sa->sa_family == AF_KEY)
287: return;
288:
1.5 pyr 289: get_rtaddrs(rtm->rtm_addrs, sa, rti_info);
290: if (Fflag && rti_info[RTAX_GATEWAY]->sa_family != sa->sa_family) {
291: return;
292: }
1.1 claudio 293: if (old_af != sa->sa_family) {
294: old_af = sa->sa_family;
295: pr_family(sa->sa_family);
296: pr_rthdr(sa->sa_family, 0);
297: }
298:
299: mask = rti_info[RTAX_NETMASK];
300: if ((sa = rti_info[RTAX_DST]) == NULL)
301: return;
302:
303: p_sockaddr(sa, mask, rtm->rtm_flags, WID_DST(sa->sa_family));
1.19 michele 304: p_sockaddr_mpls(sa, rti_info[RTAX_SRC], rtm->rtm_mpls,
1.17 michele 305: WID_DST(sa->sa_family));
306:
1.1 claudio 307: p_sockaddr(rti_info[RTAX_GATEWAY], NULL, RTF_HOST,
308: WID_GW(sa->sa_family));
1.30 claudio 309:
1.1 claudio 310: p_flags(rtm->rtm_flags, "%-6.6s ");
1.13 claudio 311: printf("%5u %8llu ", rtm->rtm_rmx.rmx_refcnt,
1.1 claudio 312: rtm->rtm_rmx.rmx_pksent);
313: if (rtm->rtm_rmx.rmx_mtu)
1.13 claudio 314: printf("%5u ", rtm->rtm_rmx.rmx_mtu);
1.1 claudio 315: else
1.13 claudio 316: printf("%5s ", "-");
1.1 claudio 317: putchar((rtm->rtm_rmx.rmx_locks & RTV_MTU) ? 'L' : ' ');
1.32 bluhm 318: printf(" %2d %-5.16s", rtm->rtm_priority,
1.13 claudio 319: if_indextoname(rtm->rtm_index, ifbuf));
1.32 bluhm 320: if (vflag && rti_info[RTAX_LABEL])
321: printf(" %s", ((struct sockaddr_rtlabel *)
322: rti_info[RTAX_LABEL])->sr_label);
1.1 claudio 323: putchar('\n');
324: }
325:
326: /*
327: * Print a pfkey/encap entry.
328: */
329: void
330: p_pfkentry(struct sadb_msg *msg)
331: {
1.13 claudio 332: static int old = 0;
1.1 claudio 333: struct sadb_address *saddr;
334: struct sadb_protocol *sap, *saft;
335: struct sockaddr *sa, *mask;
336: void *headers[SADB_EXT_MAX + 1];
337:
338: if (!old) {
339: pr_rthdr(PF_KEY, 0);
340: old++;
341: }
342:
343: bzero(headers, sizeof(headers));
344: index_pfk(msg, headers);
345:
346: /* These are always set */
347: saddr = headers[SADB_X_EXT_SRC_FLOW];
348: sa = (struct sockaddr *)(saddr + 1);
349: saddr = headers[SADB_X_EXT_SRC_MASK];
350: mask = (struct sockaddr *)(saddr + 1);
351: p_encap(sa, mask, WID_DST(sa->sa_family));
352:
353: /* These are always set, too. */
354: saddr = headers[SADB_X_EXT_DST_FLOW];
355: sa = (struct sockaddr *)(saddr + 1);
356: saddr = headers[SADB_X_EXT_DST_MASK];
357: mask = (struct sockaddr *)(saddr + 1);
358: p_encap(sa, mask, WID_DST(sa->sa_family));
359:
360: /* Bypass and deny flows do not set SADB_EXT_ADDRESS_DST! */
361: sap = headers[SADB_X_EXT_PROTOCOL];
362: saft = headers[SADB_X_EXT_FLOW_TYPE];
363: saddr = headers[SADB_EXT_ADDRESS_DST];
364: if (saddr)
365: sa = (struct sockaddr *)(saddr + 1);
366: else
367: sa = NULL;
368: p_protocol(sap, sa, saft, msg->sadb_msg_satype);
369:
370: printf("\n");
371: }
372:
373: /*
374: * Print address family header before a section of the routing table.
375: */
376: void
377: pr_family(int af)
378: {
379: char *afname;
380:
381: switch (af) {
382: case AF_INET:
383: afname = "Internet";
384: break;
385: case AF_INET6:
386: afname = "Internet6";
387: break;
388: case PF_KEY:
389: afname = "Encap";
390: break;
1.13 claudio 391: case AF_MPLS:
392: afname = "MPLS";
393: break;
1.1 claudio 394: case AF_APPLETALK:
395: afname = "AppleTalk";
396: break;
397: default:
398: afname = NULL;
399: break;
400: }
401: if (afname)
402: printf("\n%s:\n", afname);
403: else
404: printf("\nProtocol Family %d:\n", af);
405: }
406:
407: void
408: p_addr(struct sockaddr *sa, struct sockaddr *mask, int flags)
409: {
410: p_sockaddr(sa, mask, flags, WID_DST(sa->sa_family));
411: }
412:
413: void
414: p_gwaddr(struct sockaddr *sa, int af)
415: {
416: p_sockaddr(sa, 0, RTF_HOST, WID_GW(af));
417: }
418:
419: void
420: p_encap(struct sockaddr *sa, struct sockaddr *mask, int width)
421: {
1.13 claudio 422: char *cp;
423: unsigned short port = 0;
1.1 claudio 424:
1.2 todd 425: if (mask)
426: cp = netname(sa, mask);
427: else
428: cp = routename(sa);
1.1 claudio 429: switch (sa->sa_family) {
1.9 claudio 430: case AF_INET:
431: port = ntohs(((struct sockaddr_in *)sa)->sin_port);
432: break;
1.2 todd 433: case AF_INET6:
434: port = ntohs(((struct sockaddr_in6 *)sa)->sin6_port);
1.1 claudio 435: break;
436: }
437: if (width < 0)
438: printf("%s", cp);
439: else {
440: if (nflag)
441: printf("%-*s %-5u ", width, cp, port);
442: else
443: printf("%-*.*s %-5u ", width, width, cp, port);
444: }
445: }
446:
447: void
448: p_protocol(struct sadb_protocol *sap, struct sockaddr *sa, struct sadb_protocol
449: *saft, int proto)
450: {
451: printf("%-6u", sap->sadb_protocol_proto);
1.9 claudio 452:
1.1 claudio 453: if (sa)
454: p_sockaddr(sa, NULL, 0, -1);
455: else
456: printf("none");
457:
458: switch (proto) {
459: case SADB_SATYPE_ESP:
460: printf("/esp");
461: break;
462: case SADB_SATYPE_AH:
463: printf("/ah");
464: break;
465: case SADB_X_SATYPE_IPCOMP:
466: printf("/ipcomp");
467: break;
468: case SADB_X_SATYPE_IPIP:
469: printf("/ipip");
470: break;
471: default:
472: printf("/<unknown>");
473: }
474:
475: switch(saft->sadb_protocol_proto) {
476: case SADB_X_FLOW_TYPE_USE:
477: printf("/use");
478: break;
479: case SADB_X_FLOW_TYPE_REQUIRE:
480: printf("/require");
481: break;
482: case SADB_X_FLOW_TYPE_ACQUIRE:
483: printf("/acquire");
484: break;
485: case SADB_X_FLOW_TYPE_DENY:
486: printf("/deny");
487: break;
488: case SADB_X_FLOW_TYPE_BYPASS:
489: printf("/bypass");
490: break;
491: case SADB_X_FLOW_TYPE_DONTACQ:
492: printf("/dontacq");
493: break;
494: default:
495: printf("/<unknown type>");
496: }
497:
498: switch(saft->sadb_protocol_direction) {
499: case IPSP_DIRECTION_IN:
500: printf("/in");
501: break;
502: case IPSP_DIRECTION_OUT:
503: printf("/out");
504: break;
505: default:
506: printf("/<unknown>");
507: }
508: }
509:
510: void
511: p_sockaddr(struct sockaddr *sa, struct sockaddr *mask, int flags, int width)
512: {
513: char *cp;
514:
515: switch (sa->sa_family) {
516: case AF_INET6:
517: {
518: struct sockaddr_in6 *sa6 = (struct sockaddr_in6 *)sa;
519: struct in6_addr *in6 = &sa6->sin6_addr;
520:
521: /*
522: * XXX: This is a special workaround for KAME kernels.
523: * sin6_scope_id field of SA should be set in the future.
524: */
525: if (IN6_IS_ADDR_LINKLOCAL(in6) ||
1.3 itojun 526: IN6_IS_ADDR_MC_LINKLOCAL(in6) ||
527: IN6_IS_ADDR_MC_INTFACELOCAL(in6)) {
1.1 claudio 528: /* XXX: override is ok? */
529: sa6->sin6_scope_id = (u_int32_t)ntohs(*(u_short *)
530: &in6->s6_addr[2]);
531: *(u_short *)&in6->s6_addr[2] = 0;
532: }
533: if (flags & RTF_HOST)
534: cp = routename((struct sockaddr *)sa6);
535: else
536: cp = netname((struct sockaddr *)sa6, mask);
537: break;
538: }
1.16 michele 539: case AF_MPLS:
1.17 michele 540: return;
1.1 claudio 541: default:
542: if ((flags & RTF_HOST) || mask == NULL)
543: cp = routename(sa);
544: else
545: cp = netname(sa, mask);
546: break;
547: }
548: if (width < 0)
549: printf("%s", cp);
550: else {
551: if (nflag)
552: printf("%-*s ", width, cp);
553: else
554: printf("%-*.*s ", width, width, cp);
555: }
556: }
557:
1.17 michele 558: static char line[MAXHOSTNAMELEN];
559: static char domain[MAXHOSTNAMELEN];
560:
561: void
562: p_sockaddr_mpls(struct sockaddr *in, struct sockaddr *out, int flags, int width)
563: {
564: if (in->sa_family != AF_MPLS)
565: return;
566:
1.30 claudio 567: if (flags & MPLS_OP_POP || flags == MPLS_OP_LOCAL) {
568: printf("%-*s ", width, label_print(in));
569: printf("%-*s ", width, label_print(NULL));
570: } else {
571: printf("%-*s ", width, label_print(in));
572: printf("%-*s ", width, label_print(out));
573: }
1.17 michele 574:
1.30 claudio 575: printf("%-6s ", mpls_op(flags));
1.17 michele 576: }
577:
1.1 claudio 578: void
579: p_flags(int f, char *format)
580: {
581: char name[33], *flags;
582: const struct bits *p = bits;
583:
584: for (flags = name; p->b_mask && flags < &name[sizeof(name) - 2]; p++)
585: if (p->b_mask & f)
586: *flags++ = p->b_val;
587: *flags = '\0';
588: printf(format, name);
589: }
590:
591: char *
592: routename(struct sockaddr *sa)
593: {
594: char *cp = NULL;
595: static int first = 1;
596:
597: if (first) {
598: first = 0;
599: if (gethostname(domain, sizeof(domain)) == 0 &&
600: (cp = strchr(domain, '.')))
601: (void)strlcpy(domain, cp + 1, sizeof(domain));
602: else
603: domain[0] = '\0';
604: cp = NULL;
605: }
606:
607: if (sa->sa_len == 0) {
608: (void)strlcpy(line, "default", sizeof(line));
609: return (line);
610: }
611:
612: switch (sa->sa_family) {
613: case AF_INET:
614: return
615: (routename4(((struct sockaddr_in *)sa)->sin_addr.s_addr));
616:
617: case AF_INET6:
618: {
619: struct sockaddr_in6 sin6;
620:
621: memset(&sin6, 0, sizeof(sin6));
622: memcpy(&sin6, sa, sa->sa_len);
623: sin6.sin6_len = sizeof(struct sockaddr_in6);
624: sin6.sin6_family = AF_INET6;
625: if (sa->sa_len == sizeof(struct sockaddr_in6) &&
626: (IN6_IS_ADDR_LINKLOCAL(&sin6.sin6_addr) ||
1.3 itojun 627: IN6_IS_ADDR_MC_LINKLOCAL(&sin6.sin6_addr) ||
628: IN6_IS_ADDR_MC_INTFACELOCAL(&sin6.sin6_addr)) &&
1.1 claudio 629: sin6.sin6_scope_id == 0) {
630: sin6.sin6_scope_id =
631: ntohs(*(u_int16_t *)&sin6.sin6_addr.s6_addr[2]);
632: sin6.sin6_addr.s6_addr[2] = 0;
633: sin6.sin6_addr.s6_addr[3] = 0;
634: }
635: return (routename6(&sin6));
636: }
637:
638: case AF_LINK:
639: return (link_print(sa));
1.13 claudio 640: case AF_MPLS:
1.30 claudio 641: return (label_print(sa));
1.1 claudio 642: case AF_UNSPEC:
643: if (sa->sa_len == sizeof(struct sockaddr_rtlabel)) {
644: static char name[RTLABEL_LEN];
645: struct sockaddr_rtlabel *sr;
646:
647: sr = (struct sockaddr_rtlabel *)sa;
1.9 claudio 648: (void)strlcpy(name, sr->sr_label, sizeof(name));
1.1 claudio 649: return (name);
650: }
651: /* FALLTHROUGH */
652: default:
653: (void)snprintf(line, sizeof(line), "(%d) %s",
654: sa->sa_family, any_ntoa(sa));
655: break;
656: }
657: return (line);
658: }
659:
660: char *
661: routename4(in_addr_t in)
662: {
663: char *cp = NULL;
664: struct in_addr ina;
665: struct hostent *hp;
666:
667: if (in == INADDR_ANY)
668: cp = "default";
669: if (!cp && !nflag) {
670: if ((hp = gethostbyaddr((char *)&in,
671: sizeof(in), AF_INET)) != NULL) {
672: if ((cp = strchr(hp->h_name, '.')) &&
673: !strcmp(cp + 1, domain))
674: *cp = '\0';
675: cp = hp->h_name;
676: }
677: }
678: ina.s_addr = in;
679: strlcpy(line, cp ? cp : inet_ntoa(ina), sizeof(line));
680:
681: return (line);
682: }
683:
684: char *
685: routename6(struct sockaddr_in6 *sin6)
686: {
687: int niflags = 0;
688:
689: if (nflag)
690: niflags |= NI_NUMERICHOST;
691: else
692: niflags |= NI_NOFQDN;
693:
694: if (getnameinfo((struct sockaddr *)sin6, sin6->sin6_len,
695: line, sizeof(line), NULL, 0, niflags) != 0)
696: strncpy(line, "invalid", sizeof(line));
697:
698: return (line);
699: }
700:
701: /*
702: * Return the name of the network whose address is given.
703: * The address is assumed to be that of a net or subnet, not a host.
704: */
705: char *
706: netname4(in_addr_t in, in_addr_t mask)
707: {
708: char *cp = NULL;
709: struct netent *np = NULL;
710: int mbits;
711:
712: in = ntohl(in);
713: mask = ntohl(mask);
714: if (!nflag && in != INADDR_ANY) {
715: if ((np = getnetbyaddr(in, AF_INET)) != NULL)
716: cp = np->n_name;
717: }
1.28 dlg 718: if (in == INADDR_ANY && mask == INADDR_ANY)
1.1 claudio 719: cp = "default";
720: mbits = mask ? 33 - ffs(mask) : 0;
721: if (cp)
722: strlcpy(line, cp, sizeof(line));
723: #define C(x) ((x) & 0xff)
724: else if (mbits < 9)
725: snprintf(line, sizeof(line), "%u/%d", C(in >> 24), mbits);
726: else if (mbits < 17)
727: snprintf(line, sizeof(line), "%u.%u/%d",
728: C(in >> 24) , C(in >> 16), mbits);
729: else if (mbits < 25)
730: snprintf(line, sizeof(line), "%u.%u.%u/%d",
731: C(in >> 24), C(in >> 16), C(in >> 8), mbits);
732: else
733: snprintf(line, sizeof(line), "%u.%u.%u.%u/%d", C(in >> 24),
734: C(in >> 16), C(in >> 8), C(in), mbits);
735: #undef C
736: return (line);
737: }
738:
739: char *
740: netname6(struct sockaddr_in6 *sa6, struct sockaddr_in6 *mask)
741: {
742: struct sockaddr_in6 sin6;
743: u_char *p;
744: int masklen, final = 0, illegal = 0;
745: int i, lim, flag, error;
746: char hbuf[NI_MAXHOST];
747:
748: sin6 = *sa6;
749:
750: flag = 0;
751: masklen = 0;
752: if (mask) {
753: lim = mask->sin6_len - offsetof(struct sockaddr_in6, sin6_addr);
1.4 claudio 754: lim = lim < (int)sizeof(struct in6_addr) ?
1.1 claudio 755: lim : sizeof(struct in6_addr);
756: for (p = (u_char *)&mask->sin6_addr, i = 0; i < lim; p++) {
757: if (final && *p) {
758: illegal++;
759: sin6.sin6_addr.s6_addr[i++] = 0x00;
760: continue;
761: }
762:
763: switch (*p & 0xff) {
764: case 0xff:
765: masklen += 8;
766: break;
767: case 0xfe:
768: masklen += 7;
769: final++;
770: break;
771: case 0xfc:
772: masklen += 6;
773: final++;
774: break;
775: case 0xf8:
776: masklen += 5;
777: final++;
778: break;
779: case 0xf0:
780: masklen += 4;
781: final++;
782: break;
783: case 0xe0:
784: masklen += 3;
785: final++;
786: break;
787: case 0xc0:
788: masklen += 2;
789: final++;
790: break;
791: case 0x80:
792: masklen += 1;
793: final++;
794: break;
795: case 0x00:
796: final++;
797: break;
798: default:
799: final++;
800: illegal++;
801: break;
802: }
803:
804: if (!illegal)
805: sin6.sin6_addr.s6_addr[i++] &= *p;
806: else
807: sin6.sin6_addr.s6_addr[i++] = 0x00;
808: }
809: while (i < sizeof(struct in6_addr))
810: sin6.sin6_addr.s6_addr[i++] = 0x00;
811: } else
812: masklen = 128;
813:
814: if (masklen == 0 && IN6_IS_ADDR_UNSPECIFIED(&sin6.sin6_addr))
815: return ("default");
816:
817: if (illegal)
818: warnx("illegal prefixlen");
819:
820: if (nflag)
821: flag |= NI_NUMERICHOST;
822: error = getnameinfo((struct sockaddr *)&sin6, sin6.sin6_len,
823: hbuf, sizeof(hbuf), NULL, 0, flag);
824: if (error)
825: snprintf(hbuf, sizeof(hbuf), "invalid");
826:
827: snprintf(line, sizeof(line), "%s/%d", hbuf, masklen);
828: return (line);
829: }
830:
831: /*
832: * Return the name of the network whose address is given.
833: * The address is assumed to be that of a net or subnet, not a host.
834: */
835: char *
836: netname(struct sockaddr *sa, struct sockaddr *mask)
837: {
838: switch (sa->sa_family) {
839: case AF_INET:
840: return netname4(((struct sockaddr_in *)sa)->sin_addr.s_addr,
1.29 claudio 841: mask->sa_len == 0 ? 0 :
1.1 claudio 842: ((struct sockaddr_in *)mask)->sin_addr.s_addr);
843: case AF_INET6:
844: return netname6((struct sockaddr_in6 *)sa,
845: (struct sockaddr_in6 *)mask);
846: case AF_LINK:
847: return (link_print(sa));
1.13 claudio 848: case AF_MPLS:
1.30 claudio 849: return (label_print(sa));
1.1 claudio 850: default:
851: snprintf(line, sizeof(line), "af %d: %s",
852: sa->sa_family, any_ntoa(sa));
853: break;
854: }
855: return (line);
856: }
857:
858: static const char hexlist[] = "0123456789abcdef";
859:
860: char *
861: any_ntoa(const struct sockaddr *sa)
862: {
863: static char obuf[240];
864: const char *in = sa->sa_data;
865: char *out = obuf;
866: int len = sa->sa_len - offsetof(struct sockaddr, sa_data);
867:
868: *out++ = 'Q';
869: do {
870: *out++ = hexlist[(*in >> 4) & 15];
871: *out++ = hexlist[(*in++) & 15];
872: *out++ = '.';
873: } while (--len > 0 && (out + 3) < &obuf[sizeof(obuf) - 1]);
874: out[-1] = '\0';
875: return (obuf);
876: }
877:
878: char *
879: link_print(struct sockaddr *sa)
880: {
881: struct sockaddr_dl *sdl = (struct sockaddr_dl *)sa;
882: u_char *lla = (u_char *)sdl->sdl_data + sdl->sdl_nlen;
883:
884: if (sdl->sdl_nlen == 0 && sdl->sdl_alen == 0 &&
885: sdl->sdl_slen == 0) {
886: (void)snprintf(line, sizeof(line), "link#%d", sdl->sdl_index);
887: return (line);
888: }
889: switch (sdl->sdl_type) {
890: case IFT_ETHER:
891: case IFT_CARP:
892: return (ether_ntoa((struct ether_addr *)lla));
893: default:
894: return (link_ntoa(sdl));
895: }
1.13 claudio 896: }
897:
898: char *
1.30 claudio 899: mpls_op(u_int32_t type)
1.13 claudio 900: {
1.16 michele 901: switch (type & (MPLS_OP_PUSH | MPLS_OP_POP | MPLS_OP_SWAP)) {
1.21 michele 902: case MPLS_OP_LOCAL:
903: return ("LOCAL");
1.13 claudio 904: case MPLS_OP_POP:
905: return ("POP");
906: case MPLS_OP_SWAP:
907: return ("SWAP");
908: case MPLS_OP_PUSH:
909: return ("PUSH");
910: default:
911: return ("?");
912: }
913: }
914:
915: char *
1.30 claudio 916: label_print(struct sockaddr *sa)
1.13 claudio 917: {
1.30 claudio 918: struct sockaddr_mpls *smpls = (struct sockaddr_mpls *)sa;
1.13 claudio 919:
1.30 claudio 920: if (smpls)
921: (void)snprintf(line, sizeof(line), "%u",
922: ntohl(smpls->smpls_label) >> MPLS_LABEL_OFFSET);
923: else
924: (void)snprintf(line, sizeof(line), "-");
1.13 claudio 925:
926: return (line);
1.1 claudio 927: }
928:
929: void
930: index_pfk(struct sadb_msg *msg, void **headers)
931: {
932: struct sadb_ext *ext;
933:
934: for (ext = (struct sadb_ext *)(msg + 1);
935: (size_t)((u_int8_t *)ext - (u_int8_t *)msg) <
936: msg->sadb_msg_len * PFKEYV2_CHUNK && ext->sadb_ext_len > 0;
937: ext = (struct sadb_ext *)((u_int8_t *)ext +
938: ext->sadb_ext_len * PFKEYV2_CHUNK)) {
939: switch (ext->sadb_ext_type) {
940: case SADB_EXT_ADDRESS_SRC:
941: headers[SADB_EXT_ADDRESS_SRC] = (void *)ext;
942: break;
943: case SADB_EXT_ADDRESS_DST:
944: headers[SADB_EXT_ADDRESS_DST] = (void *)ext;
945: break;
946: case SADB_X_EXT_PROTOCOL:
947: headers[SADB_X_EXT_PROTOCOL] = (void *)ext;
948: break;
949: case SADB_X_EXT_SRC_FLOW:
950: headers[SADB_X_EXT_SRC_FLOW] = (void *)ext;
951: break;
952: case SADB_X_EXT_DST_FLOW:
953: headers[SADB_X_EXT_DST_FLOW] = (void *)ext;
954: break;
955: case SADB_X_EXT_SRC_MASK:
956: headers[SADB_X_EXT_SRC_MASK] = (void *)ext;
957: break;
958: case SADB_X_EXT_DST_MASK:
959: headers[SADB_X_EXT_DST_MASK] = (void *)ext;
960: break;
961: case SADB_X_EXT_FLOW_TYPE:
962: headers[SADB_X_EXT_FLOW_TYPE] = (void *)ext;
1.26 deraadt 963: break;
1.1 claudio 964: default:
965: /* Ignore. */
966: break;
967: }
968: }
969: }