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1.36 ! dlg 1: /* $OpenBSD: show.c,v 1.35 2011/11/01 17:30:04 mikeb 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' },
1.18 claudio 96: { RTF_MPATH, 'P' },
1.25 michele 97: { RTF_MPLS, 'T' },
1.1 claudio 98: { 0 }
99: };
100:
101: void p_rtentry(struct rt_msghdr *);
102: void p_pfkentry(struct sadb_msg *);
103: void pr_family(int);
104: void p_encap(struct sockaddr *, struct sockaddr *, int);
105: void p_protocol(struct sadb_protocol *, struct sockaddr *, struct
1.13 claudio 106: sadb_protocol *, int);
1.1 claudio 107: void p_sockaddr(struct sockaddr *, struct sockaddr *, int, int);
1.17 michele 108: void p_sockaddr_mpls(struct sockaddr *, struct sockaddr *, int, int);
1.1 claudio 109: void p_flags(int, char *);
110: char *routename4(in_addr_t);
111: char *routename6(struct sockaddr_in6 *);
112: void index_pfk(struct sadb_msg *, void **);
113:
114: /*
115: * Print routing tables.
116: */
117: void
1.35 mikeb 118: p_rttables(int af, u_int tableid)
1.1 claudio 119: {
120: struct rt_msghdr *rtm;
121: struct sadb_msg *msg;
122: char *buf = NULL, *next, *lim = NULL;
123: size_t needed;
1.34 claudio 124: int mib[7], mcnt;
1.1 claudio 125: struct sockaddr *sa;
126:
127: mib[0] = CTL_NET;
128: mib[1] = PF_ROUTE;
129: mib[2] = 0;
130: mib[3] = af;
131: mib[4] = NET_RT_DUMP;
132: mib[5] = 0;
1.35 mikeb 133: mib[6] = tableid;
134: mcnt = 7;
1.10 claudio 135:
1.34 claudio 136: if (sysctl(mib, mcnt, NULL, &needed, NULL, 0) < 0)
1.1 claudio 137: err(1, "route-sysctl-estimate");
138: if (needed > 0) {
139: if ((buf = malloc(needed)) == 0)
140: err(1, NULL);
1.34 claudio 141: if (sysctl(mib, mcnt, buf, &needed, NULL, 0) < 0)
1.1 claudio 142: err(1, "sysctl of routing table");
143: lim = buf + needed;
144: }
145:
146: printf("Routing tables\n");
147:
148: if (buf) {
149: for (next = buf; next < lim; next += rtm->rtm_msglen) {
150: rtm = (struct rt_msghdr *)next;
1.8 claudio 151: if (rtm->rtm_version != RTM_VERSION)
152: continue;
1.23 chris 153: sa = (struct sockaddr *)(next + rtm->rtm_hdrlen);
1.1 claudio 154: if (af != AF_UNSPEC && sa->sa_family != af)
155: continue;
156: p_rtentry(rtm);
157: }
158: free(buf);
159: buf = NULL;
160: }
161:
162: if (af != 0 && af != PF_KEY)
163: return;
164:
165: mib[0] = CTL_NET;
166: mib[1] = PF_KEY;
167: mib[2] = PF_KEY_V2;
168: mib[3] = NET_KEY_SPD_DUMP;
169: mib[4] = mib[5] = 0;
170:
171: if (sysctl(mib, 4, NULL, &needed, NULL, 0) == -1) {
172: if (errno == ENOPROTOOPT)
173: return;
174: err(1, "spd-sysctl-estimate");
175: }
176: if (needed > 0) {
177: if ((buf = malloc(needed)) == 0)
178: err(1, NULL);
179: if (sysctl(mib, 4, buf, &needed, NULL, 0) == -1)
180: err(1,"sysctl of spd");
181: lim = buf + needed;
182: }
183:
184: if (buf) {
185: printf("\nEncap:\n");
186:
187: for (next = buf; next < lim; next += msg->sadb_msg_len *
188: PFKEYV2_CHUNK) {
189: msg = (struct sadb_msg *)next;
190: if (msg->sadb_msg_len == 0)
191: break;
192: p_pfkentry(msg);
193: }
194: free(buf);
195: buf = NULL;
196: }
197: }
198:
1.12 deraadt 199: /*
1.1 claudio 200: * column widths; each followed by one space
201: * width of destination/gateway column
202: * strlen("fe80::aaaa:bbbb:cccc:dddd@gif0") == 30, strlen("/128") == 4
203: */
204: #define WID_GW(af) ((af) == AF_INET6 ? (nflag ? 30 : 18) : 18)
205:
1.13 claudio 206: int
207: WID_DST(int af)
208: {
209:
210: if (nflag)
211: switch (af) {
212: case AF_MPLS:
1.30 claudio 213: return 9;
1.13 claudio 214: case AF_INET6:
215: return 34;
216: default:
217: return 18;
218: }
219: else
220: switch (af) {
221: case AF_MPLS:
1.30 claudio 222: return 9;
1.13 claudio 223: default:
224: return 18;
225: }
226: }
227:
1.1 claudio 228: /*
229: * Print header for routing table columns.
230: */
231: void
232: pr_rthdr(int af, int Aflag)
233: {
234: if (Aflag)
235: printf("%-*.*s ", PLEN, PLEN, "Address");
1.13 claudio 236: switch (af) {
237: case PF_KEY:
1.1 claudio 238: printf("%-18s %-5s %-18s %-5s %-5s %-22s\n",
239: "Source", "Port", "Destination",
240: "Port", "Proto", "SA(Address/Proto/Type/Direction)");
1.13 claudio 241: break;
242: case PF_MPLS:
1.30 claudio 243: printf("%-9s %-9s %-6s %-18s %-6.6s %5.5s %8.8s %5.5s %4.4s %s\n",
1.13 claudio 244: "In label", "Out label", "Op", "Gateway",
245: "Flags", "Refs", "Use", "Mtu", "Prio", "Interface");
246: break;
247: default:
1.32 bluhm 248: printf("%-*.*s %-*.*s %-6.6s %5.5s %8.8s %5.5s %4.4s %s",
1.13 claudio 249: WID_DST(af), WID_DST(af), "Destination",
250: WID_GW(af), WID_GW(af), "Gateway",
251: "Flags", "Refs", "Use", "Mtu", "Prio", "Iface");
1.33 bluhm 252: if (vflag && !Aflag)
1.32 bluhm 253: printf(" %s", "Label");
254: putchar('\n');
1.13 claudio 255: break;
256: }
1.1 claudio 257: }
258:
259: static void
260: get_rtaddrs(int addrs, struct sockaddr *sa, struct sockaddr **rti_info)
261: {
262: int i;
263:
264: for (i = 0; i < RTAX_MAX; i++) {
265: if (addrs & (1 << i)) {
266: rti_info[i] = sa;
267: sa = (struct sockaddr *)((char *)(sa) +
268: ROUNDUP(sa->sa_len));
269: } else
270: rti_info[i] = NULL;
271: }
272: }
273:
274: /*
275: * Print a routing table entry.
276: */
277: void
278: p_rtentry(struct rt_msghdr *rtm)
279: {
280: static int old_af = -1;
1.22 chris 281: struct sockaddr *sa = (struct sockaddr *)((char *)rtm + rtm->rtm_hdrlen);
1.1 claudio 282: struct sockaddr *mask, *rti_info[RTAX_MAX];
283: char ifbuf[IF_NAMESIZE];
284:
285: if (sa->sa_family == AF_KEY)
286: return;
287:
1.5 pyr 288: get_rtaddrs(rtm->rtm_addrs, sa, rti_info);
289: if (Fflag && rti_info[RTAX_GATEWAY]->sa_family != sa->sa_family) {
290: return;
291: }
1.1 claudio 292: if (old_af != sa->sa_family) {
293: old_af = sa->sa_family;
294: pr_family(sa->sa_family);
295: pr_rthdr(sa->sa_family, 0);
296: }
297:
298: mask = rti_info[RTAX_NETMASK];
299: if ((sa = rti_info[RTAX_DST]) == NULL)
300: return;
301:
302: p_sockaddr(sa, mask, rtm->rtm_flags, WID_DST(sa->sa_family));
1.19 michele 303: p_sockaddr_mpls(sa, rti_info[RTAX_SRC], rtm->rtm_mpls,
1.17 michele 304: WID_DST(sa->sa_family));
305:
1.1 claudio 306: p_sockaddr(rti_info[RTAX_GATEWAY], NULL, RTF_HOST,
307: WID_GW(sa->sa_family));
1.30 claudio 308:
1.1 claudio 309: p_flags(rtm->rtm_flags, "%-6.6s ");
1.13 claudio 310: printf("%5u %8llu ", rtm->rtm_rmx.rmx_refcnt,
1.1 claudio 311: rtm->rtm_rmx.rmx_pksent);
312: if (rtm->rtm_rmx.rmx_mtu)
1.13 claudio 313: printf("%5u ", rtm->rtm_rmx.rmx_mtu);
1.1 claudio 314: else
1.13 claudio 315: printf("%5s ", "-");
1.1 claudio 316: putchar((rtm->rtm_rmx.rmx_locks & RTV_MTU) ? 'L' : ' ');
1.32 bluhm 317: printf(" %2d %-5.16s", rtm->rtm_priority,
1.13 claudio 318: if_indextoname(rtm->rtm_index, ifbuf));
1.32 bluhm 319: if (vflag && rti_info[RTAX_LABEL])
320: printf(" %s", ((struct sockaddr_rtlabel *)
321: rti_info[RTAX_LABEL])->sr_label);
1.1 claudio 322: putchar('\n');
323: }
324:
325: /*
326: * Print a pfkey/encap entry.
327: */
328: void
329: p_pfkentry(struct sadb_msg *msg)
330: {
1.13 claudio 331: static int old = 0;
1.1 claudio 332: struct sadb_address *saddr;
333: struct sadb_protocol *sap, *saft;
334: struct sockaddr *sa, *mask;
335: void *headers[SADB_EXT_MAX + 1];
336:
337: if (!old) {
338: pr_rthdr(PF_KEY, 0);
339: old++;
340: }
341:
342: bzero(headers, sizeof(headers));
343: index_pfk(msg, headers);
344:
345: /* These are always set */
346: saddr = headers[SADB_X_EXT_SRC_FLOW];
347: sa = (struct sockaddr *)(saddr + 1);
348: saddr = headers[SADB_X_EXT_SRC_MASK];
349: mask = (struct sockaddr *)(saddr + 1);
350: p_encap(sa, mask, WID_DST(sa->sa_family));
351:
352: /* These are always set, too. */
353: saddr = headers[SADB_X_EXT_DST_FLOW];
354: sa = (struct sockaddr *)(saddr + 1);
355: saddr = headers[SADB_X_EXT_DST_MASK];
356: mask = (struct sockaddr *)(saddr + 1);
357: p_encap(sa, mask, WID_DST(sa->sa_family));
358:
359: /* Bypass and deny flows do not set SADB_EXT_ADDRESS_DST! */
360: sap = headers[SADB_X_EXT_PROTOCOL];
361: saft = headers[SADB_X_EXT_FLOW_TYPE];
362: saddr = headers[SADB_EXT_ADDRESS_DST];
363: if (saddr)
364: sa = (struct sockaddr *)(saddr + 1);
365: else
366: sa = NULL;
367: p_protocol(sap, sa, saft, msg->sadb_msg_satype);
368:
369: printf("\n");
370: }
371:
372: /*
373: * Print address family header before a section of the routing table.
374: */
375: void
376: pr_family(int af)
377: {
378: char *afname;
379:
380: switch (af) {
381: case AF_INET:
382: afname = "Internet";
383: break;
384: case AF_INET6:
385: afname = "Internet6";
386: break;
387: case PF_KEY:
388: afname = "Encap";
389: break;
1.13 claudio 390: case AF_MPLS:
391: afname = "MPLS";
392: break;
1.1 claudio 393: case AF_APPLETALK:
394: afname = "AppleTalk";
395: break;
396: default:
397: afname = NULL;
398: break;
399: }
400: if (afname)
401: printf("\n%s:\n", afname);
402: else
403: printf("\nProtocol Family %d:\n", af);
404: }
405:
406: void
407: p_addr(struct sockaddr *sa, struct sockaddr *mask, int flags)
408: {
409: p_sockaddr(sa, mask, flags, WID_DST(sa->sa_family));
410: }
411:
412: void
413: p_gwaddr(struct sockaddr *sa, int af)
414: {
415: p_sockaddr(sa, 0, RTF_HOST, WID_GW(af));
416: }
417:
418: void
419: p_encap(struct sockaddr *sa, struct sockaddr *mask, int width)
420: {
1.13 claudio 421: char *cp;
422: unsigned short port = 0;
1.1 claudio 423:
1.2 todd 424: if (mask)
425: cp = netname(sa, mask);
426: else
427: cp = routename(sa);
1.1 claudio 428: switch (sa->sa_family) {
1.9 claudio 429: case AF_INET:
430: port = ntohs(((struct sockaddr_in *)sa)->sin_port);
431: break;
1.2 todd 432: case AF_INET6:
433: port = ntohs(((struct sockaddr_in6 *)sa)->sin6_port);
1.1 claudio 434: break;
435: }
436: if (width < 0)
437: printf("%s", cp);
438: else {
439: if (nflag)
440: printf("%-*s %-5u ", width, cp, port);
441: else
442: printf("%-*.*s %-5u ", width, width, cp, port);
443: }
444: }
445:
446: void
447: p_protocol(struct sadb_protocol *sap, struct sockaddr *sa, struct sadb_protocol
448: *saft, int proto)
449: {
450: printf("%-6u", sap->sadb_protocol_proto);
1.9 claudio 451:
1.1 claudio 452: if (sa)
453: p_sockaddr(sa, NULL, 0, -1);
454: else
455: printf("none");
456:
457: switch (proto) {
458: case SADB_SATYPE_ESP:
459: printf("/esp");
460: break;
461: case SADB_SATYPE_AH:
462: printf("/ah");
463: break;
464: case SADB_X_SATYPE_IPCOMP:
465: printf("/ipcomp");
466: break;
467: case SADB_X_SATYPE_IPIP:
468: printf("/ipip");
469: break;
470: default:
471: printf("/<unknown>");
472: }
473:
474: switch(saft->sadb_protocol_proto) {
475: case SADB_X_FLOW_TYPE_USE:
476: printf("/use");
477: break;
478: case SADB_X_FLOW_TYPE_REQUIRE:
479: printf("/require");
480: break;
481: case SADB_X_FLOW_TYPE_ACQUIRE:
482: printf("/acquire");
483: break;
484: case SADB_X_FLOW_TYPE_DENY:
485: printf("/deny");
486: break;
487: case SADB_X_FLOW_TYPE_BYPASS:
488: printf("/bypass");
489: break;
490: case SADB_X_FLOW_TYPE_DONTACQ:
491: printf("/dontacq");
492: break;
493: default:
494: printf("/<unknown type>");
495: }
496:
497: switch(saft->sadb_protocol_direction) {
498: case IPSP_DIRECTION_IN:
499: printf("/in");
500: break;
501: case IPSP_DIRECTION_OUT:
502: printf("/out");
503: break;
504: default:
505: printf("/<unknown>");
506: }
507: }
508:
509: void
510: p_sockaddr(struct sockaddr *sa, struct sockaddr *mask, int flags, int width)
511: {
512: char *cp;
513:
514: switch (sa->sa_family) {
515: case AF_INET6:
516: {
517: struct sockaddr_in6 *sa6 = (struct sockaddr_in6 *)sa;
518: struct in6_addr *in6 = &sa6->sin6_addr;
519:
520: /*
521: * XXX: This is a special workaround for KAME kernels.
522: * sin6_scope_id field of SA should be set in the future.
523: */
524: if (IN6_IS_ADDR_LINKLOCAL(in6) ||
1.3 itojun 525: IN6_IS_ADDR_MC_LINKLOCAL(in6) ||
526: IN6_IS_ADDR_MC_INTFACELOCAL(in6)) {
1.1 claudio 527: /* XXX: override is ok? */
528: sa6->sin6_scope_id = (u_int32_t)ntohs(*(u_short *)
529: &in6->s6_addr[2]);
530: *(u_short *)&in6->s6_addr[2] = 0;
531: }
532: if (flags & RTF_HOST)
533: cp = routename((struct sockaddr *)sa6);
534: else
535: cp = netname((struct sockaddr *)sa6, mask);
536: break;
537: }
1.16 michele 538: case AF_MPLS:
1.17 michele 539: return;
1.1 claudio 540: default:
541: if ((flags & RTF_HOST) || mask == NULL)
542: cp = routename(sa);
543: else
544: cp = netname(sa, mask);
545: break;
546: }
547: if (width < 0)
548: printf("%s", cp);
549: else {
550: if (nflag)
551: printf("%-*s ", width, cp);
552: else
553: printf("%-*.*s ", width, width, cp);
554: }
555: }
556:
1.17 michele 557: static char line[MAXHOSTNAMELEN];
558: static char domain[MAXHOSTNAMELEN];
559:
560: void
561: p_sockaddr_mpls(struct sockaddr *in, struct sockaddr *out, int flags, int width)
562: {
563: if (in->sa_family != AF_MPLS)
564: return;
565:
1.30 claudio 566: if (flags & MPLS_OP_POP || flags == MPLS_OP_LOCAL) {
567: printf("%-*s ", width, label_print(in));
568: printf("%-*s ", width, label_print(NULL));
569: } else {
570: printf("%-*s ", width, label_print(in));
571: printf("%-*s ", width, label_print(out));
572: }
1.17 michele 573:
1.30 claudio 574: printf("%-6s ", mpls_op(flags));
1.17 michele 575: }
576:
1.1 claudio 577: void
578: p_flags(int f, char *format)
579: {
580: char name[33], *flags;
581: const struct bits *p = bits;
582:
583: for (flags = name; p->b_mask && flags < &name[sizeof(name) - 2]; p++)
584: if (p->b_mask & f)
585: *flags++ = p->b_val;
586: *flags = '\0';
587: printf(format, name);
588: }
589:
590: char *
591: routename(struct sockaddr *sa)
592: {
593: char *cp = NULL;
594: static int first = 1;
595:
596: if (first) {
597: first = 0;
598: if (gethostname(domain, sizeof(domain)) == 0 &&
599: (cp = strchr(domain, '.')))
600: (void)strlcpy(domain, cp + 1, sizeof(domain));
601: else
602: domain[0] = '\0';
603: cp = NULL;
604: }
605:
606: if (sa->sa_len == 0) {
607: (void)strlcpy(line, "default", sizeof(line));
608: return (line);
609: }
610:
611: switch (sa->sa_family) {
612: case AF_INET:
613: return
614: (routename4(((struct sockaddr_in *)sa)->sin_addr.s_addr));
615:
616: case AF_INET6:
617: {
618: struct sockaddr_in6 sin6;
619:
620: memset(&sin6, 0, sizeof(sin6));
621: memcpy(&sin6, sa, sa->sa_len);
622: sin6.sin6_len = sizeof(struct sockaddr_in6);
623: sin6.sin6_family = AF_INET6;
624: if (sa->sa_len == sizeof(struct sockaddr_in6) &&
625: (IN6_IS_ADDR_LINKLOCAL(&sin6.sin6_addr) ||
1.3 itojun 626: IN6_IS_ADDR_MC_LINKLOCAL(&sin6.sin6_addr) ||
627: IN6_IS_ADDR_MC_INTFACELOCAL(&sin6.sin6_addr)) &&
1.1 claudio 628: sin6.sin6_scope_id == 0) {
629: sin6.sin6_scope_id =
630: ntohs(*(u_int16_t *)&sin6.sin6_addr.s6_addr[2]);
631: sin6.sin6_addr.s6_addr[2] = 0;
632: sin6.sin6_addr.s6_addr[3] = 0;
633: }
634: return (routename6(&sin6));
635: }
636:
637: case AF_LINK:
638: return (link_print(sa));
1.13 claudio 639: case AF_MPLS:
1.30 claudio 640: return (label_print(sa));
1.1 claudio 641: case AF_UNSPEC:
642: if (sa->sa_len == sizeof(struct sockaddr_rtlabel)) {
643: static char name[RTLABEL_LEN];
644: struct sockaddr_rtlabel *sr;
645:
646: sr = (struct sockaddr_rtlabel *)sa;
1.9 claudio 647: (void)strlcpy(name, sr->sr_label, sizeof(name));
1.1 claudio 648: return (name);
649: }
650: /* FALLTHROUGH */
651: default:
652: (void)snprintf(line, sizeof(line), "(%d) %s",
653: sa->sa_family, any_ntoa(sa));
654: break;
655: }
656: return (line);
657: }
658:
659: char *
660: routename4(in_addr_t in)
661: {
662: char *cp = NULL;
663: struct in_addr ina;
664: struct hostent *hp;
665:
666: if (in == INADDR_ANY)
667: cp = "default";
668: if (!cp && !nflag) {
669: if ((hp = gethostbyaddr((char *)&in,
670: sizeof(in), AF_INET)) != NULL) {
671: if ((cp = strchr(hp->h_name, '.')) &&
672: !strcmp(cp + 1, domain))
673: *cp = '\0';
674: cp = hp->h_name;
675: }
676: }
677: ina.s_addr = in;
678: strlcpy(line, cp ? cp : inet_ntoa(ina), sizeof(line));
679:
680: return (line);
681: }
682:
683: char *
684: routename6(struct sockaddr_in6 *sin6)
685: {
686: int niflags = 0;
687:
688: if (nflag)
689: niflags |= NI_NUMERICHOST;
690: else
691: niflags |= NI_NOFQDN;
692:
693: if (getnameinfo((struct sockaddr *)sin6, sin6->sin6_len,
694: line, sizeof(line), NULL, 0, niflags) != 0)
695: strncpy(line, "invalid", sizeof(line));
696:
697: return (line);
698: }
699:
700: /*
701: * Return the name of the network whose address is given.
702: * The address is assumed to be that of a net or subnet, not a host.
703: */
704: char *
705: netname4(in_addr_t in, in_addr_t mask)
706: {
707: char *cp = NULL;
708: struct netent *np = NULL;
709: int mbits;
710:
711: in = ntohl(in);
712: mask = ntohl(mask);
713: if (!nflag && in != INADDR_ANY) {
714: if ((np = getnetbyaddr(in, AF_INET)) != NULL)
715: cp = np->n_name;
716: }
1.28 dlg 717: if (in == INADDR_ANY && mask == INADDR_ANY)
1.1 claudio 718: cp = "default";
719: mbits = mask ? 33 - ffs(mask) : 0;
720: if (cp)
721: strlcpy(line, cp, sizeof(line));
722: #define C(x) ((x) & 0xff)
723: else if (mbits < 9)
724: snprintf(line, sizeof(line), "%u/%d", C(in >> 24), mbits);
725: else if (mbits < 17)
726: snprintf(line, sizeof(line), "%u.%u/%d",
727: C(in >> 24) , C(in >> 16), mbits);
728: else if (mbits < 25)
729: snprintf(line, sizeof(line), "%u.%u.%u/%d",
730: C(in >> 24), C(in >> 16), C(in >> 8), mbits);
731: else
732: snprintf(line, sizeof(line), "%u.%u.%u.%u/%d", C(in >> 24),
733: C(in >> 16), C(in >> 8), C(in), mbits);
734: #undef C
735: return (line);
736: }
737:
738: char *
739: netname6(struct sockaddr_in6 *sa6, struct sockaddr_in6 *mask)
740: {
741: struct sockaddr_in6 sin6;
742: u_char *p;
743: int masklen, final = 0, illegal = 0;
744: int i, lim, flag, error;
745: char hbuf[NI_MAXHOST];
746:
747: sin6 = *sa6;
748:
749: flag = 0;
750: masklen = 0;
751: if (mask) {
752: lim = mask->sin6_len - offsetof(struct sockaddr_in6, sin6_addr);
1.4 claudio 753: lim = lim < (int)sizeof(struct in6_addr) ?
1.1 claudio 754: lim : sizeof(struct in6_addr);
755: for (p = (u_char *)&mask->sin6_addr, i = 0; i < lim; p++) {
756: if (final && *p) {
757: illegal++;
758: sin6.sin6_addr.s6_addr[i++] = 0x00;
759: continue;
760: }
761:
762: switch (*p & 0xff) {
763: case 0xff:
764: masklen += 8;
765: break;
766: case 0xfe:
767: masklen += 7;
768: final++;
769: break;
770: case 0xfc:
771: masklen += 6;
772: final++;
773: break;
774: case 0xf8:
775: masklen += 5;
776: final++;
777: break;
778: case 0xf0:
779: masklen += 4;
780: final++;
781: break;
782: case 0xe0:
783: masklen += 3;
784: final++;
785: break;
786: case 0xc0:
787: masklen += 2;
788: final++;
789: break;
790: case 0x80:
791: masklen += 1;
792: final++;
793: break;
794: case 0x00:
795: final++;
796: break;
797: default:
798: final++;
799: illegal++;
800: break;
801: }
802:
803: if (!illegal)
804: sin6.sin6_addr.s6_addr[i++] &= *p;
805: else
806: sin6.sin6_addr.s6_addr[i++] = 0x00;
807: }
808: while (i < sizeof(struct in6_addr))
809: sin6.sin6_addr.s6_addr[i++] = 0x00;
810: } else
811: masklen = 128;
812:
813: if (masklen == 0 && IN6_IS_ADDR_UNSPECIFIED(&sin6.sin6_addr))
814: return ("default");
815:
816: if (illegal)
817: warnx("illegal prefixlen");
818:
819: if (nflag)
820: flag |= NI_NUMERICHOST;
821: error = getnameinfo((struct sockaddr *)&sin6, sin6.sin6_len,
822: hbuf, sizeof(hbuf), NULL, 0, flag);
823: if (error)
824: snprintf(hbuf, sizeof(hbuf), "invalid");
825:
826: snprintf(line, sizeof(line), "%s/%d", hbuf, masklen);
827: return (line);
828: }
829:
830: /*
831: * Return the name of the network whose address is given.
832: * The address is assumed to be that of a net or subnet, not a host.
833: */
834: char *
835: netname(struct sockaddr *sa, struct sockaddr *mask)
836: {
837: switch (sa->sa_family) {
838: case AF_INET:
839: return netname4(((struct sockaddr_in *)sa)->sin_addr.s_addr,
1.29 claudio 840: mask->sa_len == 0 ? 0 :
1.1 claudio 841: ((struct sockaddr_in *)mask)->sin_addr.s_addr);
842: case AF_INET6:
843: return netname6((struct sockaddr_in6 *)sa,
844: (struct sockaddr_in6 *)mask);
845: case AF_LINK:
846: return (link_print(sa));
1.13 claudio 847: case AF_MPLS:
1.30 claudio 848: return (label_print(sa));
1.1 claudio 849: default:
850: snprintf(line, sizeof(line), "af %d: %s",
851: sa->sa_family, any_ntoa(sa));
852: break;
853: }
854: return (line);
855: }
856:
857: static const char hexlist[] = "0123456789abcdef";
858:
859: char *
860: any_ntoa(const struct sockaddr *sa)
861: {
862: static char obuf[240];
863: const char *in = sa->sa_data;
864: char *out = obuf;
865: int len = sa->sa_len - offsetof(struct sockaddr, sa_data);
866:
867: *out++ = 'Q';
868: do {
869: *out++ = hexlist[(*in >> 4) & 15];
870: *out++ = hexlist[(*in++) & 15];
871: *out++ = '.';
872: } while (--len > 0 && (out + 3) < &obuf[sizeof(obuf) - 1]);
873: out[-1] = '\0';
874: return (obuf);
875: }
876:
877: char *
878: link_print(struct sockaddr *sa)
879: {
880: struct sockaddr_dl *sdl = (struct sockaddr_dl *)sa;
881: u_char *lla = (u_char *)sdl->sdl_data + sdl->sdl_nlen;
882:
883: if (sdl->sdl_nlen == 0 && sdl->sdl_alen == 0 &&
884: sdl->sdl_slen == 0) {
885: (void)snprintf(line, sizeof(line), "link#%d", sdl->sdl_index);
886: return (line);
887: }
888: switch (sdl->sdl_type) {
889: case IFT_ETHER:
890: case IFT_CARP:
891: return (ether_ntoa((struct ether_addr *)lla));
892: default:
893: return (link_ntoa(sdl));
894: }
1.13 claudio 895: }
896:
897: char *
1.30 claudio 898: mpls_op(u_int32_t type)
1.13 claudio 899: {
1.16 michele 900: switch (type & (MPLS_OP_PUSH | MPLS_OP_POP | MPLS_OP_SWAP)) {
1.21 michele 901: case MPLS_OP_LOCAL:
902: return ("LOCAL");
1.13 claudio 903: case MPLS_OP_POP:
904: return ("POP");
905: case MPLS_OP_SWAP:
906: return ("SWAP");
907: case MPLS_OP_PUSH:
908: return ("PUSH");
909: default:
910: return ("?");
911: }
912: }
913:
914: char *
1.30 claudio 915: label_print(struct sockaddr *sa)
1.13 claudio 916: {
1.30 claudio 917: struct sockaddr_mpls *smpls = (struct sockaddr_mpls *)sa;
1.13 claudio 918:
1.30 claudio 919: if (smpls)
920: (void)snprintf(line, sizeof(line), "%u",
921: ntohl(smpls->smpls_label) >> MPLS_LABEL_OFFSET);
922: else
923: (void)snprintf(line, sizeof(line), "-");
1.13 claudio 924:
925: return (line);
1.1 claudio 926: }
927:
928: void
929: index_pfk(struct sadb_msg *msg, void **headers)
930: {
931: struct sadb_ext *ext;
932:
933: for (ext = (struct sadb_ext *)(msg + 1);
934: (size_t)((u_int8_t *)ext - (u_int8_t *)msg) <
935: msg->sadb_msg_len * PFKEYV2_CHUNK && ext->sadb_ext_len > 0;
936: ext = (struct sadb_ext *)((u_int8_t *)ext +
937: ext->sadb_ext_len * PFKEYV2_CHUNK)) {
938: switch (ext->sadb_ext_type) {
939: case SADB_EXT_ADDRESS_SRC:
940: headers[SADB_EXT_ADDRESS_SRC] = (void *)ext;
941: break;
942: case SADB_EXT_ADDRESS_DST:
943: headers[SADB_EXT_ADDRESS_DST] = (void *)ext;
944: break;
945: case SADB_X_EXT_PROTOCOL:
946: headers[SADB_X_EXT_PROTOCOL] = (void *)ext;
947: break;
948: case SADB_X_EXT_SRC_FLOW:
949: headers[SADB_X_EXT_SRC_FLOW] = (void *)ext;
950: break;
951: case SADB_X_EXT_DST_FLOW:
952: headers[SADB_X_EXT_DST_FLOW] = (void *)ext;
953: break;
954: case SADB_X_EXT_SRC_MASK:
955: headers[SADB_X_EXT_SRC_MASK] = (void *)ext;
956: break;
957: case SADB_X_EXT_DST_MASK:
958: headers[SADB_X_EXT_DST_MASK] = (void *)ext;
959: break;
960: case SADB_X_EXT_FLOW_TYPE:
961: headers[SADB_X_EXT_FLOW_TYPE] = (void *)ext;
1.26 deraadt 962: break;
1.1 claudio 963: default:
964: /* Ignore. */
965: break;
966: }
967: }
968: }