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8257 ifconfig configinfo confuses mtu with metric
[unleashed.git] / usr / src / cmd / cmd-inet / usr.sbin / ifconfig / ifconfig.c
blob481bc621d4d662fd79d093de5ab267b92bdc0bc0
1 /*
2 * Copyright (c) 1990, 2010, Oracle and/or its affiliates. All rights reserved.
3 * Copyright 2012, Daniil Lunev. All rights reserved.
4 * Copyright 2014, OmniTI Computer Consulting, Inc. All rights reserved.
5 */
6 /*
7 * Copyright (c) 1983 Regents of the University of California.
8 * All rights reserved. The Berkeley software License Agreement
9 * specifies the terms and conditions for redistribution.
10 */
11
12 #include "defs.h"
13 #include "strings.h"
14 #include "ifconfig.h"
15 #include <compat.h>
16 #include <libdlpi.h>
17 #include <libdllink.h>
18 #include <libdliptun.h>
19 #include <libdllink.h>
20 #include <inet/ip.h>
21 #include <inet/ipsec_impl.h>
22 #include <libipadm.h>
23 #include <ifaddrs.h>
24 #include <libsocket_priv.h>
25
26 #define LOOPBACK_IF "lo0"
27 #define NONE_STR "none"
28 #define ARP_MOD_NAME "arp"
29 #define LIFC_DEFAULT (LIFC_NOXMIT | LIFC_TEMPORARY | LIFC_ALLZONES |\
30 LIFC_UNDER_IPMP)
31
32 typedef struct if_flags {
33 uint64_t iff_value;
34 char *iff_name;
35 } if_flags_t;
36
37 static if_flags_t if_flags_tbl[] = {
38 { IFF_UP, "UP" },
39 { IFF_BROADCAST, "BROADCAST" },
40 { IFF_DEBUG, "DEBUG" },
41 { IFF_LOOPBACK, "LOOPBACK" },
42 { IFF_POINTOPOINT, "POINTOPOINT" },
43 { IFF_NOTRAILERS, "NOTRAILERS" },
44 { IFF_RUNNING, "RUNNING" },
45 { IFF_NOARP, "NOARP" },
46 { IFF_PROMISC, "PROMISC" },
47 { IFF_ALLMULTI, "ALLMULTI" },
48 { IFF_INTELLIGENT, "INTELLIGENT" },
49 { IFF_MULTICAST, "MULTICAST" },
50 { IFF_MULTI_BCAST, "MULTI_BCAST" },
51 { IFF_UNNUMBERED, "UNNUMBERED" },
52 { IFF_DHCPRUNNING, "DHCP" },
53 { IFF_PRIVATE, "PRIVATE" },
54 { IFF_NOXMIT, "NOXMIT" },
55 { IFF_NOLOCAL, "NOLOCAL" },
56 { IFF_DEPRECATED, "DEPRECATED" },
57 { IFF_ADDRCONF, "ADDRCONF" },
58 { IFF_ROUTER, "ROUTER" },
59 { IFF_NONUD, "NONUD" },
60 { IFF_ANYCAST, "ANYCAST" },
61 { IFF_NORTEXCH, "NORTEXCH" },
62 { IFF_IPV4, "IPv4" },
63 { IFF_IPV6, "IPv6" },
64 { IFF_NOFAILOVER, "NOFAILOVER" },
65 { IFF_FAILED, "FAILED" },
66 { IFF_STANDBY, "STANDBY" },
67 { IFF_INACTIVE, "INACTIVE" },
68 { IFF_OFFLINE, "OFFLINE" },
69 { IFF_XRESOLV, "XRESOLV" },
70 { IFF_COS_ENABLED, "CoS" },
71 { IFF_PREFERRED, "PREFERRED" },
72 { IFF_TEMPORARY, "TEMPORARY" },
73 { IFF_FIXEDMTU, "FIXEDMTU" },
74 { IFF_VIRTUAL, "VIRTUAL" },
75 { IFF_DUPLICATE, "DUPLICATE" },
76 { IFF_IPMP, "IPMP"},
77 { IFF_VRRP, "VRRP"},
78 { IFF_NOACCEPT, "NOACCEPT"},
79 { IFF_L3PROTECT, "L3PROTECT"}
80 };
81
82 typedef struct {
83 const char *ia_app;
84 uint64_t ia_flag;
85 uint_t ia_tries;
86 } if_appflags_t;
87
88 static const if_appflags_t if_appflags_tbl[] = {
89 { "dhcpagent(1M)", IFF_DHCPRUNNING, 1 },
90 { "in.ndpd(1M)", IFF_ADDRCONF, 3 },
91 { NULL, 0, 0 }
92 };
93
94 static dladm_handle_t dlh;
95 boolean_t dlh_opened;
96 static struct lifreq lifr;
97 /* current interface name a particular function is accessing */
98 static char name[LIFNAMSIZ];
99 /* foreach interface saved name */
100 static char origname[LIFNAMSIZ];
101 static int setaddr;
102 static boolean_t setaddr_done = _B_FALSE;
103 static boolean_t ipsec_policy_set;
104 static boolean_t ipsec_auth_covered;
105 static ipadm_handle_t iph;
106 static ipadm_addrobj_t ipaddr;
107
108 /*
109 * Make sure the algorithm variables hold more than the sizeof an algorithm
110 * in PF_KEY. (For now, more than a uint8_t.) The NO_***_?ALG indicates that
111 * there was no algorithm requested, and in the ipsec_req that service should
112 * be disabled. (E.g. if ah_aalg remains NO_AH_AALG, then AH will be
113 * disabled on that tunnel.)
114 */
115 #define NO_AH_AALG 256
116 #define NO_ESP_AALG 256
117 #define NO_ESP_EALG 256
118
119 int s, s4, s6;
120 int af = AF_INET; /* default address family */
121 int debug = 0;
122 int all = 0; /* setifdhcp() needs to know this */
123 int verbose = 0;
124 int v4compat = 0; /* Compatible printing format */
125
126 /*
127 * Function prototypes for command functions.
128 */
129 static int addif(char *arg, int64_t param);
130 static int inetipmp(char *arg, int64_t param);
131 static int inetplumb(char *arg, int64_t param);
132 static int inetunplumb(char *arg, int64_t param);
133 static int removeif(char *arg, int64_t param);
134 static int setdebugflag(char *arg, int64_t param);
135 static int setifaddr(char *arg, int64_t param);
136 static int setifbroadaddr(char *arg, int64_t param);
137 static int setifdstaddr(char *arg, int64_t param);
138 static int setifether(char *arg, int64_t param);
139 static int setifflags(char *arg, int64_t param);
140 static int setifindex(char *arg, int64_t param);
141 static int setifmetric(char *arg, int64_t param);
142 static int setifmtu(char *arg, int64_t param);
143 static int setifnetmask(char *arg, int64_t param);
144 static int setifprefixlen(char *arg, int64_t param);
145 static int setifrevarp(char *arg, int64_t param);
146 static int setifsubnet(char *arg, int64_t param);
147 static int setiftdst(char *arg, int64_t param);
148 static int setiftoken(char *arg, int64_t param);
149 static int setiftsrc(char *arg, int64_t param);
150 static int setverboseflag(char *arg, int64_t param);
151 static int set_tun_ah_alg(char *arg, int64_t param);
152 static int set_tun_esp_auth_alg(char *arg, int64_t param);
153 static int set_tun_esp_encr_alg(char *arg, int64_t param);
154 static int modlist(char *arg, int64_t param);
155 static int modinsert(char *arg, int64_t param);
156 static int modremove(char *arg, int64_t param);
157 static int setifgroupname(char *arg, int64_t param);
158 static int configinfo(char *arg, int64_t param);
159 static void print_config_flags(int af, uint64_t flags);
160 static void print_flags(uint64_t flags);
161 static void print_ifether(const char *ifname);
162 static int set_tun_encap_limit(char *arg, int64_t param);
163 static int clr_tun_encap_limit(char *arg, int64_t param);
164 static int set_tun_hop_limit(char *arg, int64_t param);
165 static int setzone(char *arg, int64_t param);
166 static int setallzones(char *arg, int64_t param);
167 static int setifsrc(char *arg, int64_t param);
168 static int lifnum(const char *ifname);
169 static void plumball(int, char **, int64_t, int64_t, int64_t);
170
171 /*
172 * Address family specific function prototypes.
173 */
174 static void in_getaddr(char *s, struct sockaddr *saddr, int *plenp);
175 static void in_status(int force, uint64_t flags);
176 static void in_configinfo(int force, uint64_t flags);
177 static void in6_getaddr(char *s, struct sockaddr *saddr, int *plenp);
178 static void in6_status(int force, uint64_t flags);
179 static void in6_configinfo(int force, uint64_t flags);
180
181 /*
182 * Misc support functions
183 */
184 static boolean_t ni_entry(const char *, void *);
185 static void foreachinterface(int argc, char *argv[],
186 int af, int64_t onflags, int64_t offflags,
187 int64_t lifc_flags);
188 static void ifconfig(int argc, char *argv[], int af,
189 struct ifaddrs *ifa);
190 static boolean_t in_getmask(struct sockaddr_in *saddr,
191 boolean_t addr_set);
192 static int in_getprefixlen(char *addr, boolean_t slash, int plen);
193 static boolean_t in_prefixlentomask(int prefixlen, int maxlen,
194 uchar_t *mask);
195 static void status(void);
196 static void ifstatus(const char *ifname);
197 static void tun_status(datalink_id_t);
198 static void usage(void);
199 static int setifdhcp(const char *caller, const char *ifname,
200 int argc, char *argv[]);
201 static int ip_domux2fd(int *, int *, int *, int *, int *);
202 static int ip_plink(int, int, int, int, int);
203 static int modop(char *arg, char op);
204 static int find_all_interfaces(struct lifconf *lifcp, char **buf,
205 int64_t lifc_flags);
206 static int create_ipmp(const char *grname, int af,
207 const char *ifname, boolean_t implicit);
208 static void start_ipmp_daemon(void);
209 static boolean_t ifaddr_up(ifaddrlistx_t *ifaddrp);
210 static boolean_t ifaddr_down(ifaddrlistx_t *ifaddrp);
211 static dladm_status_t ifconfig_dladm_open(const char *, datalink_class_t,
212 datalink_id_t *);
213 static void dladmerr_exit(dladm_status_t status, const char *str);
214 static void ipadmerr_exit(ipadm_status_t status, const char *str);
215 static boolean_t ifconfig_use_libipadm(int, const char *);
216
217 #define max(a, b) ((a) < (b) ? (b) : (a))
218
219 /*
220 * DHCP_EXIT_IF_FAILURE indicates that the operation failed, but if there
221 * are more interfaces to act on (i.e., ifconfig was invoked with -a), keep
222 * on going rather than exit with an error.
223 */
224
225 #define DHCP_EXIT_IF_FAILURE -1
226
227 #define NEXTARG 0xffffff /* command takes an argument */
228 #define OPTARG 0xfffffe /* command takes an optional argument */
229 #define AF_ANY (-1)
230
231 /* Refer to the comments in ifconfig() on the netmask "hack" */
232 #define NETMASK_CMD "netmask"
233 struct sockaddr_storage g_netmask;
234 enum { G_NETMASK_NIL, G_NETMASK_PENDING, G_NETMASK_SET }
235 g_netmask_set = G_NETMASK_NIL;
236
237 struct cmd {
238 char *c_name;
239 int64_t c_parameter; /* NEXTARG means next argv */
240 int (*c_func)(char *, int64_t);
241 int c_abortonfail; /* don't continue parsing args */
242 /* for the current interface */
243 int c_af; /* address family restrictions */
244 } cmds[] = {
245 { "up", IFF_UP, setifflags, 0, AF_ANY },
246 { "down", -IFF_UP, setifflags, 0, AF_ANY },
247 { "trailers", -IFF_NOTRAILERS, setifflags, 0, AF_ANY },
248 { "-trailers", IFF_NOTRAILERS, setifflags, 0, AF_ANY },
249 { "arp", -IFF_NOARP, setifflags, 0, AF_INET },
250 { "-arp", IFF_NOARP, setifflags, 0, AF_INET },
251 { "router", IFF_ROUTER, setifflags, 0, AF_ANY },
252 { "-router", -IFF_ROUTER, setifflags, 0, AF_ANY },
253 { "private", IFF_PRIVATE, setifflags, 0, AF_ANY },
254 { "-private", -IFF_PRIVATE, setifflags, 0, AF_ANY },
255 { "xmit", -IFF_NOXMIT, setifflags, 0, AF_ANY },
256 { "-xmit", IFF_NOXMIT, setifflags, 0, AF_ANY },
257 { "-nud", IFF_NONUD, setifflags, 0, AF_INET6 },
258 { "nud", -IFF_NONUD, setifflags, 0, AF_INET6 },
259 { "anycast", IFF_ANYCAST, setifflags, 0, AF_ANY },
260 { "-anycast", -IFF_ANYCAST, setifflags, 0, AF_ANY },
261 { "local", -IFF_NOLOCAL, setifflags, 0, AF_ANY },
262 { "-local", IFF_NOLOCAL, setifflags, 0, AF_ANY },
263 { "deprecated", IFF_DEPRECATED, setifflags, 0, AF_ANY },
264 { "-deprecated", -IFF_DEPRECATED, setifflags, 0, AF_ANY },
265 { "preferred", IFF_PREFERRED, setifflags, 0, AF_INET6 },
266 { "-preferred", -IFF_PREFERRED, setifflags, 0, AF_INET6 },
267 { "debug", 0, setdebugflag, 0, AF_ANY },
268 { "verbose", 0, setverboseflag, 0, AF_ANY },
269 { NETMASK_CMD, NEXTARG, setifnetmask, 0, AF_INET },
270 { "metric", NEXTARG, setifmetric, 0, AF_ANY },
271 { "mtu", NEXTARG, setifmtu, 0, AF_ANY },
272 { "index", NEXTARG, setifindex, 0, AF_ANY },
273 { "broadcast", NEXTARG, setifbroadaddr, 0, AF_INET },
274 { "auto-revarp", 0, setifrevarp, 1, AF_INET },
275 { "ipmp", 0, inetipmp, 1, AF_ANY },
276 { "plumb", 0, inetplumb, 1, AF_ANY },
277 { "unplumb", 0, inetunplumb, 0, AF_ANY },
278 { "subnet", NEXTARG, setifsubnet, 0, AF_ANY },
279 { "token", NEXTARG, setiftoken, 0, AF_INET6 },
280 { "tsrc", NEXTARG, setiftsrc, 0, AF_ANY },
281 { "tdst", NEXTARG, setiftdst, 0, AF_ANY },
282 { "encr_auth_algs", NEXTARG, set_tun_esp_auth_alg, 0, AF_ANY },
283 { "encr_algs", NEXTARG, set_tun_esp_encr_alg, 0, AF_ANY },
284 { "auth_algs", NEXTARG, set_tun_ah_alg, 0, AF_ANY },
285 { "addif", NEXTARG, addif, 1, AF_ANY },
286 { "removeif", NEXTARG, removeif, 1, AF_ANY },
287 { "modlist", 0, modlist, 1, AF_ANY },
288 { "modinsert", NEXTARG, modinsert, 1, AF_ANY },
289 { "modremove", NEXTARG, modremove, 1, AF_ANY },
290 { "failover", -IFF_NOFAILOVER, setifflags, 1, AF_ANY },
291 { "-failover", IFF_NOFAILOVER, setifflags, 1, AF_ANY },
292 { "standby", IFF_STANDBY, setifflags, 1, AF_ANY },
293 { "-standby", -IFF_STANDBY, setifflags, 1, AF_ANY },
294 { "failed", IFF_FAILED, setifflags, 1, AF_ANY },
295 { "-failed", -IFF_FAILED, setifflags, 1, AF_ANY },
296 { "group", NEXTARG, setifgroupname, 1, AF_ANY },
297 { "configinfo", 0, configinfo, 1, AF_ANY },
298 { "encaplimit", NEXTARG, set_tun_encap_limit, 0, AF_ANY },
299 { "-encaplimit", 0, clr_tun_encap_limit, 0, AF_ANY },
300 { "thoplimit", NEXTARG, set_tun_hop_limit, 0, AF_ANY },
301 { "set", NEXTARG, setifaddr, 0, AF_ANY },
302 { "destination", NEXTARG, setifdstaddr, 0, AF_ANY },
303 { "zone", NEXTARG, setzone, 0, AF_ANY },
304 { "-zone", 0, setzone, 0, AF_ANY },
305 { "all-zones", 0, setallzones, 0, AF_ANY },
306 { "ether", OPTARG, setifether, 0, AF_ANY },
307 { "usesrc", NEXTARG, setifsrc, 0, AF_ANY },
308
309 /*
310 * NOTE: any additions to this table must also be applied to ifparse
311 * (usr/src/cmd/cmd-inet/sbin/ifparse/ifparse.c)
312 */
313
314 { 0, 0, setifaddr, 0, AF_ANY },
315 { 0, 0, setifdstaddr, 0, AF_ANY },
316 { 0, 0, 0, 0, 0 },
317 };
318
319
320 typedef struct if_config_cmd {
321 uint64_t iff_flag;
322 int iff_af;
323 char *iff_name;
324 } if_config_cmd_t;
325
326 /*
327 * NOTE: print_config_flags() processes this table in order, so we put "up"
328 * last so that we can be sure "-failover" will take effect first. Otherwise,
329 * IPMP test addresses will erroneously migrate to the IPMP interface.
330 */
331 static if_config_cmd_t if_config_cmd_tbl[] = {
332 { IFF_NOTRAILERS, AF_UNSPEC, "-trailers" },
333 { IFF_PRIVATE, AF_UNSPEC, "private" },
334 { IFF_NOXMIT, AF_UNSPEC, "-xmit" },
335 { IFF_ANYCAST, AF_INET6, "anycast" },
336 { IFF_NOLOCAL, AF_UNSPEC, "-local" },
337 { IFF_DEPRECATED, AF_UNSPEC, "deprecated" },
338 { IFF_NOFAILOVER, AF_UNSPEC, "-failover" },
339 { IFF_STANDBY, AF_UNSPEC, "standby" },
340 { IFF_FAILED, AF_UNSPEC, "failed" },
341 { IFF_PREFERRED, AF_UNSPEC, "preferred" },
342 { IFF_NONUD, AF_INET6, "-nud" },
343 { IFF_NOARP, AF_INET, "-arp" },
344 { IFF_UP, AF_UNSPEC, "up" },
345 { 0, 0, NULL },
346 };
347
348 typedef struct ni {
349 char ni_name[LIFNAMSIZ];
350 struct ni *ni_next;
351 } ni_t;
352
353 static ni_t *ni_list = NULL;
354 static int num_ni = 0;
355
356 /* End defines and structure definitions for ifconfig -a plumb */
357
358 /* Known address families */
359 struct afswtch {
360 char *af_name;
361 short af_af;
362 void (*af_status)();
363 void (*af_getaddr)();
364 void (*af_configinfo)();
365 } afs[] = {
366 { "inet", AF_INET, in_status, in_getaddr, in_configinfo },
367 { "inet6", AF_INET6, in6_status, in6_getaddr, in6_configinfo },
368 { 0, 0, 0, 0, 0 }
369 };
370
371 #define SOCKET_AF(af) (((af) == AF_UNSPEC) ? AF_INET : (af))
372
373 struct afswtch *afp; /* the address family being set or asked about */
374
375 int
376 main(int argc, char *argv[])
377 {
378 int64_t lifc_flags;
379 char *default_ip_str;
380 ipadm_status_t istatus;
381
382 lifc_flags = LIFC_DEFAULT;
383
384 if (argc < 2) {
385 (void) strncpy(name, "-a", sizeof (name));
386 } else {
387 argc--, argv++;
388 if (strlen(*argv) > sizeof (name) - 1) {
389 (void) fprintf(stderr, "%s: interface name too long\n",
390 *argv);
391 exit(1);
392 }
393 (void) strncpy(name, *argv, sizeof (name));
394 }
395 name[sizeof (name) - 1] = '\0';
396 (void) strncpy(origname, name, sizeof (origname)); /* For addif */
397 default_ip_str = NULL;
398 v4compat = get_compat_flag(&default_ip_str);
399 if (v4compat == DEFAULT_PROT_BAD_VALUE) {
400 (void) fprintf(stderr,
401 "ifconfig: %s: Bad value for %s in %s\n", default_ip_str,
402 DEFAULT_IP, INET_DEFAULT_FILE);
403 free(default_ip_str);
404 exit(2);
405 }
406 free(default_ip_str);
407 argc--, argv++;
408 if (argc > 0) {
409 struct afswtch *myafp;
410
411 for (myafp = afp = afs; myafp->af_name; myafp++) {
412 if (strcmp(myafp->af_name, *argv) == 0) {
413 afp = myafp; argc--; argv++;
414 break;
415 }
416 }
417 af = lifr.lifr_addr.ss_family = afp->af_af;
418 if (af == AF_INET6) {
419 v4compat = 0;
420 }
421 }
422
423 s = socket(SOCKET_AF(af), SOCK_DGRAM, 0);
424 s4 = socket(AF_INET, SOCK_DGRAM, 0);
425 s6 = socket(AF_INET6, SOCK_DGRAM, 0);
426 if (s == -1 || s4 == -1 || s6 == -1)
427 Perror0_exit("socket");
428 /*
429 * Open the global libipadm handle. The flag IPH_LEGACY has to
430 * be specified to indicate that logical interface names will
431 * be used during interface creation and address creation.
432 */
433 if ((istatus = ipadm_open(&iph, IPH_LEGACY)) != IPADM_SUCCESS)
434 ipadmerr_exit(istatus, "unable to open handle to libipadm");
435
436 /*
437 * Special interface names is any combination of these flags.
438 * Note that due to the ifconfig syntax they have to be combined
439 * as a single '-' option.
440 * -a All interfaces
441 * -u "up" interfaces
442 * -d "down" interfaces
443 * -D Interfaces not controlled by DHCP
444 * -4 IPv4 interfaces
445 * -6 IPv6 interfaces
446 * -X Turn on debug (not documented)
447 * -v Turn on verbose
448 * -Z Only interfaces in caller's zone
449 */
450
451 if (name[0] == '-') {
452 /* One or more options */
453 int64_t onflags = 0;
454 int64_t offflags = 0;
455 int c;
456 char *av[2] = { "ifconfig", name };
457
458 while ((c = getopt(2, av, "audhDXZ46v")) != -1) {
459 switch ((char)c) {
460 case 'a':
461 all = 1;
462 break;
463 case 'u':
464 onflags |= IFF_UP;
465 break;
466 case 'd':
467 offflags |= IFF_UP;
468 break;
469 case 'D':
470 offflags |= IFF_DHCPRUNNING;
471 break;
472 case 'X':
473 debug += 3;
474 break;
475 case 'Z':
476 lifc_flags &= ~LIFC_ALLZONES;
477 break;
478 case '4':
479 /*
480 * -4 is not a compatable flag, therefore
481 * we assume they want v4compat turned off
482 */
483 v4compat = 0;
484 onflags |= IFF_IPV4;
485 break;
486 case '6':
487 /*
488 * If they want IPv6, well then we'll assume
489 * they don't want IPv4 compat
490 */
491 v4compat = 0;
492 onflags |= IFF_IPV6;
493 break;
494 case 'v':
495 verbose = 1;
496 break;
497 case 'h':
498 case '?':
499 usage();
500 exit(1);
501 }
502 }
503 if (!all) {
504 (void) fprintf(stderr,
505 "ifconfig: %s: no such interface\n", name);
506 exit(1);
507 }
508 foreachinterface(argc, argv, af, onflags, offflags,
509 lifc_flags);
510 } else {
511 ifconfig(argc, argv, af, NULL);
512 }
513 ipadm_close(iph);
514 return (0);
515 }
516
517 /*
518 * For each interface, call ifconfig(argc, argv, af, ifa).
519 * Only call function if onflags and offflags are set or clear, respectively,
520 * in the interfaces flags field.
521 */
522 static void
523 foreachinterface(int argc, char *argv[], int af,
524 int64_t onflags, int64_t offflags, int64_t lifc_flags)
525 {
526 ipadm_addr_info_t *ainfo, *ainfop;
527 struct ifaddrs *ifa;
528 ipadm_status_t istatus;
529
530 /*
531 * Special case:
532 * ifconfig -a plumb should find all network interfaces in the current
533 * zone.
534 */
535 if (argc > 0 && (strcmp(*argv, "plumb") == 0)) {
536 plumball(argc, argv, onflags, offflags, lifc_flags);
537 return;
538 }
539 /* Get all addresses in kernel including addresses that are zero. */
540 istatus = ipadm_addr_info(iph, NULL, &ainfo, IPADM_OPT_ZEROADDR,
541 lifc_flags);
542 if (istatus != IPADM_SUCCESS)
543 ipadmerr_exit(istatus, "could not get addresses from kernel");
544
545 /*
546 * For each logical interface, call ifconfig() with the
547 * given arguments.
548 */
549 for (ainfop = ainfo; ainfop != NULL; ainfop = IA_NEXT(ainfop)) {
550 if (ainfop->ia_state == IFA_DISABLED)
551 continue;
552 ifa = &ainfop->ia_ifa;
553 if (onflags || offflags) {
554 if ((ifa->ifa_flags & onflags) != onflags)
555 continue;
556 if ((~ifa->ifa_flags & offflags) != offflags)
557 continue;
558 }
559 s = (ifa->ifa_addr->sa_family == AF_INET ? s4 : s6);
560 (void) strncpy(name, ifa->ifa_name, sizeof (name));
561 (void) strncpy(origname, name, sizeof (origname));
562 ifconfig(argc, argv, af, ifa);
563 }
564 ipadm_free_addr_info(ainfo);
565 }
566
567 /*
568 * Used for `ifconfig -a plumb'. Finds all datalinks and plumbs the interface.
569 */
570 static void
571 plumball(int argc, char *argv[], int64_t onflags, int64_t offflags,
572 int64_t lifc_flags)
573 {
574 int n;
575 struct lifreq *lifrp;
576 struct lifconf lifc;
577 char *buf;
578
579 if (onflags != 0 || offflags != 0) {
580 (void) fprintf(stderr, "ifconfig: invalid syntax used to "
581 "plumb all interfaces.\n");
582 exit(1);
583 }
584
585 if (find_all_interfaces(&lifc, &buf, lifc_flags) != 0 ||
586 lifc.lifc_len == 0)
587 return;
588
589 lifrp = lifc.lifc_req;
590 for (n = lifc.lifc_len / sizeof (struct lifreq); n > 0; n--, lifrp++) {
591 /*
592 * Reset global state
593 * setaddr: Used by parser to tear apart source and dest
594 * name and origname contain the name of the 'current'
595 * interface.
596 */
597 setaddr = 0;
598 (void) strncpy(name, lifrp->lifr_name, sizeof (name));
599 (void) strncpy(origname, name, sizeof (origname));
600 ifconfig(argc, argv, af, NULL);
601 }
602 }
603
604 /*
605 * Parses the interface name and the command in argv[]. Calls the
606 * appropriate callback function for the given command from `cmds[]'
607 * table.
608 * If there is no command specified, it prints all addresses.
609 */
610 static void
611 ifconfig(int argc, char *argv[], int af, struct ifaddrs *ifa)
612 {
613 static boolean_t scan_netmask = _B_FALSE;
614 int ret;
615 ipadm_status_t istatus;
616 struct lifreq lifr;
617
618 if (argc == 0) {
619 status();
620 return;
621 }
622
623 if (strcmp(*argv, "auto-dhcp") == 0 || strcmp(*argv, "dhcp") == 0) {
624 /*
625 * Some errors are ignored in the case where more than one
626 * interface is being operated on.
627 */
628 ret = setifdhcp("ifconfig", name, argc, argv);
629 if (ret == DHCP_EXIT_IF_FAILURE) {
630 if (!all)
631 exit(DHCP_EXIT_FAILURE);
632 } else if (ret != DHCP_EXIT_SUCCESS) {
633 exit(ret);
634 }
635 return;
636 }
637
638 /*
639 * The following is a "hack" to get around the existing interface
640 * setting mechanism. Currently, each interface attribute,
641 * such as address, netmask, broadcast, ... is set separately. But
642 * sometimes two or more attributes must be set together. For
643 * example, setting an address without a netmask does not make sense.
644 * Yet they can be set separately for IPv4 address using the current
645 * ifconfig(1M) syntax. The kernel then "infers" the correct netmask
646 * using the deprecated "IP address classes." This is simply not
647 * correct.
648 *
649 * The "hack" below is to go thru the whole command list looking for
650 * the netmask command first. Then use this netmask to set the
651 * address. This does not provide an extensible way to accommodate
652 * future need for setting more than one attributes together.
653 *
654 * Note that if the "netmask" command argument is a "+", we need
655 * to save this info and do the query after we know the address to
656 * be set. The reason is that if "addif" is used, the working
657 * interface name will be changed later when the logical interface
658 * is created. In in_getmask(), if an address is not provided,
659 * it will use the working interface's address to do the query.
660 * It will be wrong now as we don't know the logical interface's name.
661 *
662 * ifconfig(1M) is too overloaded and the code is so convoluted
663 * that it is "safer" not to re-architect the code to fix the above
664 * issue, hence this "hack." We may be better off to have a new
665 * command with better syntax for configuring network interface
666 * parameters...
667 */
668 if (!scan_netmask && afp->af_af == AF_INET) {
669 int largc;
670 char **largv;
671
672 /* Only go thru the command list once to find the netmask. */
673 scan_netmask = _B_TRUE;
674
675 /*
676 * Currently, if multiple netmask commands are specified, the
677 * last one will be used as the final netmask. So we need
678 * to scan the whole list to preserve this behavior.
679 */
680 for (largc = argc, largv = argv; largc > 0; largc--, largv++) {
681 if (strcmp(*largv, NETMASK_CMD) == 0) {
682 if (--largc == 0)
683 break;
684 largv++;
685 if (strcmp(*largv, "+") == 0) {
686 g_netmask_set = G_NETMASK_PENDING;
687 } else {
688 in_getaddr(*largv, (struct sockaddr *)
689 &g_netmask, NULL);
690 g_netmask_set = G_NETMASK_SET;
691 }
692 /* Continue the scan. */
693 }
694 }
695 }
696
697 while (argc > 0) {
698 struct cmd *p;
699 boolean_t found_cmd;
700
701 if (debug)
702 (void) printf("ifconfig: argv %s\n", *argv);
703
704 found_cmd = _B_FALSE;
705 for (p = cmds; p->c_func; p++) {
706 if (p->c_name) {
707 if (strcmp(*argv, p->c_name) == 0) {
708 /*
709 * indicate that the command was
710 * found and check to see if
711 * the address family is valid
712 */
713 found_cmd = _B_TRUE;
714 if (p->c_af == AF_ANY ||
715 af == p->c_af)
716 break;
717 }
718 } else {
719 if (p->c_af == AF_ANY ||
720 af == p->c_af)
721 break;
722 }
723 }
724 /*
725 * If we found the keyword, but the address family
726 * did not match spit out an error
727 */
728 if (found_cmd && p->c_name == 0) {
729 (void) fprintf(stderr, "ifconfig: Operation %s not"
730 " supported for %s\n", *argv, afp->af_name);
731 exit(1);
732 }
733 /*
734 * else (no keyword found), we assume it's an address
735 * of some sort
736 */
737 if (setaddr && ipaddr != NULL) {
738 /*
739 * We must have already filled in a source address in
740 * `ipaddr' and we now got a destination address.
741 * Fill it in `ipaddr' and call libipadm to create
742 * the static address.
743 */
744 if (p->c_name == 0) {
745 istatus = ipadm_set_dst_addr(ipaddr, *argv,
746 (p->c_af == AF_ANY ? AF_UNSPEC : af));
747 if (istatus != IPADM_SUCCESS) {
748 ipadmerr_exit(istatus, "could not "
749 "set destination address");
750 }
751 /*
752 * finished processing dstaddr, so reset setaddr
753 */
754 setaddr = 0;
755 }
756 /*
757 * Both source and destination address are in `ipaddr'.
758 * Add the address by calling libipadm.
759 */
760 istatus = ipadm_create_addr(iph, ipaddr,
761 IPADM_OPT_ACTIVE);
762 if (istatus != IPADM_SUCCESS)
763 goto createfailed;
764 ipadm_destroy_addrobj(ipaddr);
765 ipaddr = NULL;
766 setaddr_done = _B_TRUE;
767 if (p->c_name == 0) {
768 /* move parser along */
769 argc--, argv++;
770 continue;
771 }
772 }
773 if (p->c_name == 0 && setaddr_done) {
774 /*
775 * catch odd commands like
776 * "ifconfig <intf> addr1 addr2 addr3 addr4 up"
777 */
778 (void) fprintf(stderr, "%s",
779 "ifconfig: cannot configure more than two "
780 "addresses in one command\n");
781 exit(1);
782 }
783 if (p->c_func) {
784 if (p->c_af == AF_INET6) {
785 v4compat = 0;
786 }
787 if (p->c_parameter == NEXTARG ||
788 p->c_parameter == OPTARG) {
789 argc--, argv++;
790 if (argc == 0 && p->c_parameter == NEXTARG) {
791 (void) fprintf(stderr,
792 "ifconfig: no argument for %s\n",
793 p->c_name);
794 exit(1);
795 }
796 }
797 /*
798 * Call the function if:
799 *
800 * there's no address family
801 * restriction
802 * OR
803 * we don't know the address yet
804 * (because we were called from
805 * main)
806 * OR
807 * there is a restriction AND
808 * the address families match
809 */
810 if ((p->c_af == AF_ANY) ||
811 (ifa == NULL) ||
812 (ifa->ifa_addr->sa_family == p->c_af)) {
813 ret = (*p->c_func)(*argv, p->c_parameter);
814 /*
815 * If c_func failed and we should
816 * abort processing for this
817 * interface on failure, return
818 * now rather than going on to
819 * process other commands for
820 * the same interface.
821 */
822 if (ret != 0 && p->c_abortonfail)
823 return;
824 }
825 }
826 argc--, argv++;
827 }
828
829 if (setaddr && ipaddr != NULL) {
830 /*
831 * Only the source address was provided, which was already
832 * set in `ipaddr'. Add the address by calling libipadm.
833 */
834 istatus = ipadm_create_addr(iph, ipaddr, IPADM_OPT_ACTIVE);
835 if (istatus != IPADM_SUCCESS)
836 goto createfailed;
837 ipadm_destroy_addrobj(ipaddr);
838 ipaddr = NULL;
839 setaddr_done = _B_TRUE;
840 }
841
842 /* Check to see if there's a security hole in the tunnel setup. */
843 if (ipsec_policy_set && !ipsec_auth_covered) {
844 (void) fprintf(stderr, "ifconfig: WARNING: tunnel with only "
845 "ESP and no authentication.\n");
846 }
847 return;
848
849 createfailed:
850 (void) fprintf(stderr, "ifconfig: could not create address:% s\n",
851 ipadm_status2str(istatus));
852 /* Remove the newly created logical interface. */
853 if (strcmp(name, origname) != 0) {
854 assert(strchr(name, ':') != NULL);
855 (void) strncpy(lifr.lifr_name, name, sizeof (lifr.lifr_name));
856 (void) ioctl(s, SIOCLIFREMOVEIF, (caddr_t)&lifr);
857 }
858 exit(1);
859 }
860
861 /* ARGSUSED */
862 static int
863 setdebugflag(char *val, int64_t arg)
864 {
865 debug++;
866 return (0);
867 }
868
869 /* ARGSUSED */
870 static int
871 setverboseflag(char *val, int64_t arg)
872 {
873 verbose++;
874 return (0);
875 }
876
877 /*
878 * This function fills in the given lifreq's lifr_addr field based on
879 * g_netmask_set.
880 */
881 static void
882 set_mask_lifreq(struct lifreq *lifr, struct sockaddr_storage *addr,
883 struct sockaddr_storage *mask)
884 {
885 assert(addr != NULL);
886 assert(mask != NULL);
887
888 switch (g_netmask_set) {
889 case G_NETMASK_SET:
890 lifr->lifr_addr = g_netmask;
891 break;
892
893 case G_NETMASK_PENDING:
894 /*
895 * "+" is used as the argument to "netmask" command. Query
896 * the database on the correct netmask based on the address to
897 * be set.
898 */
899 assert(afp->af_af == AF_INET);
900 g_netmask = *addr;
901 if (!in_getmask((struct sockaddr_in *)&g_netmask, _B_TRUE)) {
902 lifr->lifr_addr = *mask;
903 g_netmask_set = G_NETMASK_NIL;
904 } else {
905 lifr->lifr_addr = g_netmask;
906 g_netmask_set = G_NETMASK_SET;
907 }
908 break;
909
910 case G_NETMASK_NIL:
911 default:
912 lifr->lifr_addr = *mask;
913 break;
914 }
915 }
916
917 /*
918 * Set the interface address. Handles <addr>, <addr>/<n> as well as /<n>
919 * syntax for setting the address, the address plus netmask, and just
920 * the netmask respectively.
921 */
922 /* ARGSUSED */
923 static int
924 setifaddr(char *addr, int64_t param)
925 {
926 ipadm_status_t istatus;
927 int prefixlen = 0;
928 struct lifreq lifr1;
929 struct sockaddr_storage laddr;
930 struct sockaddr_storage netmask;
931 struct sockaddr_in6 *sin6;
932 struct sockaddr_in *sin;
933 struct sockaddr_storage sav_netmask;
934 char cidraddr[BUFSIZ];
935
936 if (addr[0] == '/')
937 return (setifprefixlen(addr, 0));
938
939 (*afp->af_getaddr)(addr, (struct sockaddr *)&laddr, &prefixlen);
940
941 (void) memset(&netmask, 0, sizeof (netmask));
942 netmask.ss_family = afp->af_af;
943 switch (prefixlen) {
944 case NO_PREFIX:
945 /* Nothing there - ok */
946 break;
947 case BAD_ADDR:
948 (void) fprintf(stderr, "ifconfig: Bad prefix length in %s\n",
949 addr);
950 exit(1);
951 default:
952 if (afp->af_af == AF_INET6) {
953 sin6 = (struct sockaddr_in6 *)&netmask;
954 if (!in_prefixlentomask(prefixlen, IPV6_ABITS,
955 (uchar_t *)&sin6->sin6_addr)) {
956 (void) fprintf(stderr, "ifconfig: "
957 "Bad prefix length: %d\n",
958 prefixlen);
959 exit(1);
960 }
961 } else {
962 sin = (struct sockaddr_in *)&netmask;
963 if (!in_prefixlentomask(prefixlen, IP_ABITS,
964 (uchar_t *)&sin->sin_addr)) {
965 (void) fprintf(stderr, "ifconfig: "
966 "Bad prefix length: %d\n",
967 prefixlen);
968 exit(1);
969 }
970 }
971 /*
972 * Just in case of funny setting of both prefix and netmask,
973 * prefix should override the netmask command.
974 */
975 g_netmask_set = G_NETMASK_NIL;
976 break;
977 }
978
979 /*
980 * Check and see if any "netmask" command is used and perform the
981 * necessary operation.
982 */
983 set_mask_lifreq(&lifr, &laddr, &netmask);
984
985 /* This check is temporary until libipadm supports IPMP interfaces. */
986 if (ifconfig_use_libipadm(s, name)) {
987 char addrstr[INET6_ADDRSTRLEN];
988
989 if (af == AF_INET) {
990 sin = (struct sockaddr_in *)&laddr;
991 (void) inet_ntop(AF_INET, &sin->sin_addr, addrstr,
992 sizeof (addrstr));
993 } else {
994 sin6 = (struct sockaddr_in6 *)&laddr;
995 (void) inet_ntop(AF_INET6, &sin6->sin6_addr, addrstr,
996 sizeof (addrstr));
997 }
998 istatus = ipadm_create_addrobj(IPADM_ADDR_STATIC, name,
999 &ipaddr);
1000 if (istatus != IPADM_SUCCESS)
1001 ipadmerr_exit(istatus, "setifaddr");
1002
1003 /*
1004 * lifr.lifr_addr, which is updated by set_mask_lifreq()
1005 * will contain the right mask to use.
1006 */
1007 prefixlen = mask2plen((struct sockaddr *)&lifr.lifr_addr);
1008 (void) snprintf(cidraddr, sizeof (cidraddr), "%s/%d",
1009 addrstr, prefixlen);
1010
1011 istatus = ipadm_set_addr(ipaddr, cidraddr, af);
1012 if (istatus != IPADM_SUCCESS)
1013 ipadmerr_exit(istatus, "could not set address");
1014 /*
1015 * let parser know we got a source.
1016 * Next address, if given, should be dest
1017 */
1018 setaddr++;
1019
1020 /*
1021 * address will be set by the parser after nextarg has
1022 * been scanned
1023 */
1024 return (0);
1025 }
1026
1027 /* Tell parser that an address was set */
1028 setaddr++;
1029 /* save copy of netmask to restore in case of error */
1030 (void) strncpy(lifr1.lifr_name, name, sizeof (lifr1.lifr_name));
1031 if (ioctl(s, SIOCGLIFNETMASK, (caddr_t)&lifr1) < 0)
1032 Perror0_exit("SIOCGLIFNETMASK");
1033 sav_netmask = lifr1.lifr_addr;
1034
1035 /*
1036 * If setting the address and not the mask, clear any existing mask
1037 * and the kernel will then assign the default (netmask has been set
1038 * to 0 in this case). If setting both (either by using a prefix or
1039 * using the netmask command), set the mask first, so the address will
1040 * be interpreted correctly.
1041 */
1042 (void) strncpy(lifr.lifr_name, name, sizeof (lifr.lifr_name));
1043 /* lifr.lifr_addr already contains netmask from set_mask_lifreq() */
1044 if (ioctl(s, SIOCSLIFNETMASK, (caddr_t)&lifr) < 0)
1045 Perror0_exit("SIOCSLIFNETMASK");
1046
1047 if (debug) {
1048 char abuf[INET6_ADDRSTRLEN];
1049 void *addr = (afp->af_af == AF_INET) ?
1050 (void *)&((struct sockaddr_in *)&laddr)->sin_addr :
1051 (void *)&((struct sockaddr_in6 *)&laddr)->sin6_addr;
1052
1053 (void) printf("Setting %s af %d addr %s\n",
1054 lifr.lifr_name, afp->af_af,
1055 inet_ntop(afp->af_af, addr, abuf, sizeof (abuf)));
1056 }
1057 lifr.lifr_addr = laddr;
1058 lifr.lifr_addr.ss_family = afp->af_af;
1059 if (ioctl(s, SIOCSLIFADDR, (caddr_t)&lifr) < 0) {
1060 /*
1061 * Restore the netmask
1062 */
1063 int saverr = errno;
1064
1065 (void) strncpy(lifr.lifr_name, name, sizeof (lifr.lifr_name));
1066 lifr.lifr_addr = sav_netmask;
1067 (void) ioctl(s, SIOCSLIFNETMASK, (caddr_t)&lifr);
1068 errno = saverr;
1069 Perror0_exit("SIOCSLIFADDR");
1070 }
1071
1072 return (0);
1073 }
1074
1075 /*
1076 * The following functions are stolen from the ipseckey(1m) program.
1077 * Perhaps they should be somewhere common, but for now, we just maintain
1078 * two versions. We do this because of the different semantics for which
1079 * algorithms we select ("requested" for ifconfig vs. "actual" for key).
1080 */
1081
1082 static ulong_t
1083 parsenum(char *num)
1084 {
1085 ulong_t rc;
1086 char *end = NULL;
1087
1088 errno = 0;
1089 rc = strtoul(num, &end, 0);
1090 if (errno != 0 || end == num || *end != '\0') {
1091 rc = (ulong_t)-1;
1092 }
1093
1094 return (rc);
1095 }
1096
1097 /*
1098 * Parse and reverse parse possible algorithm values, include numbers.
1099 * Mostly stolen from ipseckey.c. See the comments above parsenum() for why
1100 * this isn't common to ipseckey.c.
1101 *
1102 * NOTE: Static buffer in this function for the return value. Since ifconfig
1103 * isn't multithreaded, this isn't a huge problem.
1104 */
1105
1106 #define NBUF_SIZE 20 /* Enough to print a large integer. */
1107
1108 static char *
1109 rparsealg(uint8_t alg_value, int proto_num)
1110 {
1111 struct ipsecalgent *alg;
1112 static char numprint[128]; /* Enough to hold an algorithm name. */
1113
1114 /*
1115 * Special cases for "any" and "none"
1116 * The kernel needs to be able to distinguish between "any"
1117 * and "none" and the APIs are underdefined in this area for auth.
1118 */
1119 if (proto_num == IPSEC_PROTO_AH) {
1120 if (alg_value == SADB_AALG_NONE)
1121 return ("none");
1122 if (alg_value == SADB_AALG_ANY)
1123 return ("any");
1124 }
1125
1126 alg = getipsecalgbynum(alg_value, proto_num, NULL);
1127 if (alg != NULL) {
1128 (void) strlcpy(numprint, alg->a_names[0], sizeof (numprint));
1129 freeipsecalgent(alg);
1130 } else {
1131 (void) snprintf(numprint, sizeof (numprint), "%d", alg_value);
1132 }
1133
1134 return (numprint);
1135 }
1136
1137 static uint_t
1138 parsealg(char *algname, int proto_num)
1139 {
1140 struct ipsecalgent *alg;
1141 ulong_t invalue;
1142
1143 if (algname == NULL) {
1144 (void) fprintf(stderr, "ifconfig: Unexpected end of command "
1145 "line.\n");
1146 exit(1);
1147 }
1148
1149 /*
1150 * Special-case "none" and "any".
1151 * Use strcasecmp because its length is bounded.
1152 */
1153 if (strcasecmp("none", algname) == 0) {
1154 return ((proto_num == IPSEC_PROTO_ESP) ?
1155 NO_ESP_EALG : NO_ESP_AALG);
1156 }
1157 if ((strcasecmp("any", algname) == 0) && (proto_num == IPSEC_PROTO_AH))
1158 return (SADB_AALG_ANY);
1159
1160 alg = getipsecalgbyname(algname, proto_num, NULL);
1161 if (alg != NULL) {
1162 invalue = alg->a_alg_num;
1163 freeipsecalgent(alg);
1164 return ((uint_t)invalue);
1165 }
1166
1167 /*
1168 * Since algorithms can be loaded during kernel run-time, check for
1169 * numeric algorithm values too.
1170 */
1171 invalue = parsenum(algname);
1172 if ((invalue & (ulong_t)0xff) == invalue)
1173 return ((uint_t)invalue);
1174
1175 (void) fprintf(stderr, "ifconfig: %s algorithm type %s unknown.\n",
1176 (proto_num == IPSEC_PROTO_ESP) ?
1177 "Encryption" : "Authentication", algname);
1178 exit(1);
1179 /* NOTREACHED */
1180 }
1181
1182 /*
1183 * Actual ifconfig functions to set tunnel security properties.
1184 */
1185
1186 enum ipsec_alg_type { ESP_ENCR_ALG = 1, ESP_AUTH_ALG, AH_AUTH_ALG };
1187
1188 static int
1189 set_tun_algs(int which_alg, int alg)
1190 {
1191 boolean_t encr_alg_set = _B_FALSE;
1192 iptun_params_t params;
1193 dladm_status_t status;
1194 ipsec_req_t *ipsr;
1195
1196 if ((status = ifconfig_dladm_open(name, DATALINK_CLASS_IPTUN,
1197 &params.iptun_param_linkid)) != DLADM_STATUS_OK)
1198 goto done;
1199
1200 status = dladm_iptun_getparams(dlh, &params, DLADM_OPT_ACTIVE);
1201 if (status != DLADM_STATUS_OK)
1202 goto done;
1203
1204 ipsr = &params.iptun_param_secinfo;
1205
1206 /*
1207 * If I'm just starting off this ifconfig, I want a clean slate,
1208 * otherwise, I've captured the current tunnel security settings.
1209 * In the case of continuation, I merely add to the settings.
1210 */
1211 if (!(params.iptun_param_flags & IPTUN_PARAM_SECINFO))
1212 (void) memset(ipsr, 0, sizeof (*ipsr));
1213
1214 /* We're only modifying the IPsec information */
1215 params.iptun_param_flags = IPTUN_PARAM_SECINFO;
1216
1217 switch (which_alg) {
1218 case ESP_ENCR_ALG:
1219 if (alg == NO_ESP_EALG) {
1220 if (ipsr->ipsr_esp_auth_alg == SADB_AALG_NONE)
1221 ipsr->ipsr_esp_req = 0;
1222 ipsr->ipsr_esp_alg = SADB_EALG_NONE;
1223
1224 /* Let the user specify NULL encryption implicitly. */
1225 if (ipsr->ipsr_esp_auth_alg != SADB_AALG_NONE) {
1226 encr_alg_set = _B_TRUE;
1227 ipsr->ipsr_esp_alg = SADB_EALG_NULL;
1228 }
1229 } else {
1230 encr_alg_set = _B_TRUE;
1231 ipsr->ipsr_esp_req =
1232 IPSEC_PREF_REQUIRED | IPSEC_PREF_UNIQUE;
1233 ipsr->ipsr_esp_alg = alg;
1234 }
1235 break;
1236 case ESP_AUTH_ALG:
1237 if (alg == NO_ESP_AALG) {
1238 if ((ipsr->ipsr_esp_alg == SADB_EALG_NONE ||
1239 ipsr->ipsr_esp_alg == SADB_EALG_NULL) &&
1240 !encr_alg_set)
1241 ipsr->ipsr_esp_req = 0;
1242 ipsr->ipsr_esp_auth_alg = SADB_AALG_NONE;
1243 } else {
1244 ipsr->ipsr_esp_req =
1245 IPSEC_PREF_REQUIRED | IPSEC_PREF_UNIQUE;
1246 ipsr->ipsr_esp_auth_alg = alg;
1247
1248 /* Let the user specify NULL encryption implicitly. */
1249 if (ipsr->ipsr_esp_alg == SADB_EALG_NONE &&
1250 !encr_alg_set)
1251 ipsr->ipsr_esp_alg = SADB_EALG_NULL;
1252 }
1253 break;
1254 case AH_AUTH_ALG:
1255 if (alg == NO_AH_AALG) {
1256 ipsr->ipsr_ah_req = 0;
1257 ipsr->ipsr_auth_alg = SADB_AALG_NONE;
1258 } else {
1259 ipsr->ipsr_ah_req =
1260 IPSEC_PREF_REQUIRED | IPSEC_PREF_UNIQUE;
1261 ipsr->ipsr_auth_alg = alg;
1262 }
1263 break;
1264 /* Will never hit DEFAULT */
1265 }
1266
1267 status = dladm_iptun_modify(dlh, &params, DLADM_OPT_ACTIVE);
1268
1269 done:
1270 if (status != DLADM_STATUS_OK)
1271 dladmerr_exit(status, name);
1272 else {
1273 ipsec_policy_set = _B_TRUE;
1274 if ((ipsr->ipsr_esp_req != 0 &&
1275 ipsr->ipsr_esp_auth_alg != SADB_AALG_NONE) ||
1276 (ipsr->ipsr_ah_req != 0 &&
1277 ipsr->ipsr_auth_alg != SADB_AALG_NONE))
1278 ipsec_auth_covered = _B_TRUE;
1279 }
1280 return (0);
1281 }
1282
1283 /* ARGSUSED */
1284 static int
1285 set_tun_esp_encr_alg(char *addr, int64_t param)
1286 {
1287 return (set_tun_algs(ESP_ENCR_ALG,
1288 parsealg(addr, IPSEC_PROTO_ESP)));
1289 }
1290
1291 /* ARGSUSED */
1292 static int
1293 set_tun_esp_auth_alg(char *addr, int64_t param)
1294 {
1295 return (set_tun_algs(ESP_AUTH_ALG,
1296 parsealg(addr, IPSEC_PROTO_AH)));
1297 }
1298
1299 /* ARGSUSED */
1300 static int
1301 set_tun_ah_alg(char *addr, int64_t param)
1302 {
1303 return (set_tun_algs(AH_AUTH_ALG,
1304 parsealg(addr, IPSEC_PROTO_AH)));
1305 }
1306
1307 /* ARGSUSED */
1308 static int
1309 setifrevarp(char *arg, int64_t param)
1310 {
1311 struct sockaddr_in laddr;
1312
1313 if (afp->af_af == AF_INET6) {
1314 (void) fprintf(stderr,
1315 "ifconfig: revarp not possible on IPv6 interface %s\n",
1316 name);
1317 exit(1);
1318 }
1319 if (doifrevarp(name, &laddr)) {
1320 (void) strncpy(lifr.lifr_name, name, sizeof (lifr.lifr_name));
1321 laddr.sin_family = AF_INET;
1322 (void) memcpy(&lifr.lifr_addr, &laddr, sizeof (laddr));
1323 if (ioctl(s, SIOCSLIFADDR, (caddr_t)&lifr) < 0)
1324 Perror0_exit("SIOCSLIFADDR");
1325 }
1326 return (0);
1327 }
1328
1329 /* ARGSUSED */
1330 static int
1331 setifsubnet(char *addr, int64_t param)
1332 {
1333 int prefixlen = 0;
1334 struct sockaddr_storage subnet;
1335
1336 (*afp->af_getaddr)(addr, &subnet, &prefixlen);
1337
1338 switch (prefixlen) {
1339 case NO_PREFIX:
1340 (void) fprintf(stderr,
1341 "ifconfig: Missing prefix length in subnet %s\n", addr);
1342 exit(1);
1343 /* NOTREACHED */
1344 case BAD_ADDR:
1345 (void) fprintf(stderr,
1346 "ifconfig: Bad prefix length in %s\n", addr);
1347 exit(1);
1348 default:
1349 break;
1350 }
1351
1352 lifr.lifr_addr = subnet;
1353 lifr.lifr_addrlen = prefixlen;
1354 (void) strncpy(lifr.lifr_name, name, sizeof (lifr.lifr_name));
1355 if (ioctl(s, SIOCSLIFSUBNET, (caddr_t)&lifr) < 0)
1356 Perror0_exit("SIOCSLIFSUBNET");
1357
1358 return (0);
1359 }
1360
1361 /* ARGSUSED */
1362 static int
1363 setifnetmask(char *addr, int64_t param)
1364 {
1365 struct sockaddr_in netmask;
1366
1367 assert(afp->af_af != AF_INET6);
1368
1369 if (strcmp(addr, "+") == 0) {
1370 if (!in_getmask(&netmask, _B_FALSE))
1371 return (0);
1372 (void) printf("Setting netmask of %s to %s\n", name,
1373 inet_ntoa(netmask.sin_addr));
1374 } else {
1375 in_getaddr(addr, (struct sockaddr *)&netmask, NULL);
1376 }
1377 (void) strncpy(lifr.lifr_name, name, sizeof (lifr.lifr_name));
1378 (void) memcpy(&lifr.lifr_addr, &netmask, sizeof (netmask));
1379 if (ioctl(s, SIOCSLIFNETMASK, (caddr_t)&lifr) < 0)
1380 Perror0_exit("SIOCSLIFNETMASK");
1381 return (0);
1382 }
1383
1384 /*
1385 * Parse '/<n>' as a netmask.
1386 */
1387 /* ARGSUSED */
1388 static int
1389 setifprefixlen(char *addr, int64_t param)
1390 {
1391 int prefixlen;
1392 int af = afp->af_af;
1393
1394 prefixlen = in_getprefixlen(addr, _B_TRUE,
1395 (af == AF_INET) ? IP_ABITS : IPV6_ABITS);
1396 if (prefixlen < 0) {
1397 (void) fprintf(stderr,
1398 "ifconfig: Bad prefix length in %s\n", addr);
1399 exit(1);
1400 }
1401 (void) memset(&lifr.lifr_addr, 0, sizeof (lifr.lifr_addr));
1402 lifr.lifr_addr.ss_family = af;
1403 if (af == AF_INET6) {
1404 struct sockaddr_in6 *sin6;
1405
1406 sin6 = (struct sockaddr_in6 *)&lifr.lifr_addr;
1407 if (!in_prefixlentomask(prefixlen, IPV6_ABITS,
1408 (uchar_t *)&sin6->sin6_addr)) {
1409 (void) fprintf(stderr, "ifconfig: "
1410 "Bad prefix length: %d\n",
1411 prefixlen);
1412 exit(1);
1413 }
1414 } else if (af == AF_INET) {
1415 struct sockaddr_in *sin;
1416
1417 sin = (struct sockaddr_in *)&lifr.lifr_addr;
1418 if (!in_prefixlentomask(prefixlen, IP_ABITS,
1419 (uchar_t *)&sin->sin_addr)) {
1420 (void) fprintf(stderr, "ifconfig: "
1421 "Bad prefix length: %d\n",
1422 prefixlen);
1423 exit(1);
1424 }
1425 } else {
1426 (void) fprintf(stderr, "ifconfig: setting prefix only supported"
1427 " for address family inet or inet6\n");
1428 exit(1);
1429 }
1430 (void) strncpy(lifr.lifr_name, name, sizeof (lifr.lifr_name));
1431 if (ioctl(s, SIOCSLIFNETMASK, (caddr_t)&lifr) < 0)
1432 Perror0_exit("SIOCSLIFNETMASK");
1433 return (0);
1434 }
1435
1436 /* ARGSUSED */
1437 static int
1438 setifbroadaddr(char *addr, int64_t param)
1439 {
1440 struct sockaddr_in broadaddr;
1441
1442 assert(afp->af_af != AF_INET6);
1443
1444 if (strcmp(addr, "+") == 0) {
1445 /*
1446 * This doesn't set the broadcast address at all. Rather, it
1447 * gets, then sets the interface's address, relying on the fact
1448 * that resetting the address will reset the broadcast address.
1449 */
1450 (void) strncpy(lifr.lifr_name, name,
1451 sizeof (lifr.lifr_name));
1452 if (ioctl(s, SIOCGLIFADDR, (caddr_t)&lifr) < 0) {
1453 if (errno != EADDRNOTAVAIL)
1454 Perror0_exit("SIOCGLIFADDR");
1455 return (0);
1456 }
1457 if (ioctl(s, SIOCSLIFADDR, (caddr_t)&lifr) < 0)
1458 Perror0_exit("SIOCGLIFADDR");
1459
1460 return (0);
1461 }
1462 in_getaddr(addr, (struct sockaddr *)&broadaddr, NULL);
1463
1464 (void) memcpy(&lifr.lifr_addr, &broadaddr, sizeof (broadaddr));
1465 (void) strncpy(lifr.lifr_name, name, sizeof (lifr.lifr_name));
1466 if (ioctl(s, SIOCSLIFBRDADDR, (caddr_t)&lifr) < 0)
1467 Perror0_exit("SIOCSLIFBRDADDR");
1468 return (0);
1469 }
1470
1471 /*
1472 * set interface destination address
1473 */
1474 /* ARGSUSED */
1475 static int
1476 setifdstaddr(char *addr, int64_t param)
1477 {
1478 (*afp->af_getaddr)(addr, (struct sockaddr *)&lifr.lifr_addr, NULL);
1479 (void) strncpy(lifr.lifr_name, name, sizeof (lifr.lifr_name));
1480 if (ioctl(s, SIOCSLIFDSTADDR, (caddr_t)&lifr) < 0)
1481 Perror0_exit("setifdstaddr: SIOCSLIFDSTADDR");
1482 return (0);
1483 }
1484
1485 /* ARGSUSED */
1486 static int
1487 setifflags(char *val, int64_t value)
1488 {
1489 struct lifreq lifrl; /* local lifreq struct */
1490 boolean_t bringup = _B_FALSE;
1491
1492 (void) strncpy(lifr.lifr_name, name, sizeof (lifr.lifr_name));
1493 if (ioctl(s, SIOCGLIFFLAGS, (caddr_t)&lifr) < 0)
1494 Perror0_exit("setifflags: SIOCGLIFFLAGS");
1495
1496 if (value < 0) {
1497 value = -value;
1498
1499 if ((value & IFF_NOFAILOVER) && (lifr.lifr_flags & IFF_UP)) {
1500 /*
1501 * The kernel does not allow administratively up test
1502 * addresses to be converted to data addresses. Bring
1503 * the address down first, then bring it up after it's
1504 * been converted to a data address.
1505 */
1506 lifr.lifr_flags &= ~IFF_UP;
1507 (void) ioctl(s, SIOCSLIFFLAGS, (caddr_t)&lifr);
1508 bringup = _B_TRUE;
1509 }
1510
1511 lifr.lifr_flags &= ~value;
1512 if ((value & (IFF_UP | IFF_NOFAILOVER)) &&
1513 (lifr.lifr_flags & IFF_DUPLICATE)) {
1514 /*
1515 * If the user is trying to mark an interface with a
1516 * duplicate address as "down," or convert a duplicate
1517 * test address to a data address, then fetch the
1518 * address and set it. This will cause IP to clear
1519 * the IFF_DUPLICATE flag and stop the automatic
1520 * recovery timer.
1521 */
1522 value = lifr.lifr_flags;
1523 if (ioctl(s, SIOCGLIFADDR, (caddr_t)&lifr) >= 0)
1524 (void) ioctl(s, SIOCSLIFADDR, (caddr_t)&lifr);
1525 lifr.lifr_flags = value;
1526 }
1527 } else {
1528 lifr.lifr_flags |= value;
1529 }
1530
1531 /*
1532 * If we're about to bring up an underlying physical IPv6 interface in
1533 * an IPMP group, ensure the IPv6 IPMP interface is also up. This is
1534 * for backward compatibility with legacy configurations in which
1535 * there are no explicit hostname files for IPMP interfaces. (For
1536 * IPv4, this is automatically handled by the kernel when migrating
1537 * the underlying interface's data address to the IPMP interface.)
1538 */
1539 (void) strlcpy(lifrl.lifr_name, name, LIFNAMSIZ);
1540
1541 if (lifnum(lifr.lifr_name) == 0 &&
1542 (lifr.lifr_flags & (IFF_UP|IFF_IPV6)) == (IFF_UP|IFF_IPV6) &&
1543 ioctl(s, SIOCGLIFGROUPNAME, &lifrl) == 0 &&
1544 lifrl.lifr_groupname[0] != '\0') {
1545 lifgroupinfo_t lifgr;
1546
1547 (void) strlcpy(lifgr.gi_grname, lifrl.lifr_groupname,
1548 LIFGRNAMSIZ);
1549 if (ioctl(s, SIOCGLIFGROUPINFO, &lifgr) == -1)
1550 Perror0_exit("setifflags: SIOCGLIFGROUPINFO");
1551
1552 (void) strlcpy(lifrl.lifr_name, lifgr.gi_grifname, LIFNAMSIZ);
1553 if (ioctl(s, SIOCGLIFFLAGS, &lifrl) == -1)
1554 Perror0_exit("setifflags: SIOCGLIFFLAGS");
1555 if (!(lifrl.lifr_flags & IFF_UP)) {
1556 lifrl.lifr_flags |= IFF_UP;
1557 if (ioctl(s, SIOCSLIFFLAGS, &lifrl) == -1)
1558 Perror0_exit("setifflags: SIOCSLIFFLAGS");
1559 }
1560 }
1561
1562 (void) strncpy(lifr.lifr_name, name, sizeof (lifr.lifr_name));
1563 if (ioctl(s, SIOCSLIFFLAGS, (caddr_t)&lifr) < 0)
1564 Perror0_exit("setifflags: SIOCSLIFFLAGS");
1565
1566 if (bringup) {
1567 lifr.lifr_flags |= IFF_UP;
1568 if (ioctl(s, SIOCSLIFFLAGS, (caddr_t)&lifr) < 0)
1569 Perror0_exit("setifflags: SIOCSLIFFLAGS IFF_UP");
1570 }
1571
1572 return (0);
1573 }
1574
1575 /* ARGSUSED */
1576 static int
1577 setifmetric(char *val, int64_t param)
1578 {
1579 (void) strncpy(lifr.lifr_name, name, sizeof (lifr.lifr_name));
1580 lifr.lifr_metric = atoi(val);
1581 if (ioctl(s, SIOCSLIFMETRIC, (caddr_t)&lifr) < 0)
1582 Perror0_exit("setifmetric: SIOCSLIFMETRIC");
1583 return (0);
1584 }
1585
1586 /* ARGSUSED */
1587 static int
1588 setifmtu(char *val, int64_t param)
1589 {
1590 (void) strncpy(lifr.lifr_name, name, sizeof (lifr.lifr_name));
1591 lifr.lifr_mtu = atoi(val);
1592 if (ioctl(s, SIOCSLIFMTU, (caddr_t)&lifr) < 0)
1593 Perror0_exit("setifmtu: SIOCSLIFMTU");
1594 return (0);
1595 }
1596
1597 /* ARGSUSED */
1598 static int
1599 setifindex(char *val, int64_t param)
1600 {
1601 (void) strncpy(lifr.lifr_name, name, sizeof (lifr.lifr_name));
1602 lifr.lifr_index = atoi(val);
1603 if (ioctl(s, SIOCSLIFINDEX, (caddr_t)&lifr) < 0)
1604 Perror0_exit("setifindex: SIOCSLIFINDEX");
1605 return (0);
1606 }
1607
1608 /* ARGSUSED */
1609 static void
1610 notifycb(dlpi_handle_t dh, dlpi_notifyinfo_t *dnip, void *arg)
1611 {
1612 }
1613
1614 /* ARGSUSED */
1615 static int
1616 setifether(char *addr, int64_t param)
1617 {
1618 uchar_t *hwaddr;
1619 int hwaddrlen;
1620 int retval;
1621 ifaddrlistx_t *ifaddrp, *ifaddrs = NULL;
1622 dlpi_handle_t dh;
1623 dlpi_notifyid_t id;
1624
1625 if (addr == NULL) {
1626 ifstatus(name);
1627 print_ifether(name);
1628 return (0);
1629 }
1630
1631 /*
1632 * if the IP interface in the arguments is a logical
1633 * interface, exit with an error now.
1634 */
1635 if (strchr(name, ':') != NULL) {
1636 (void) fprintf(stderr, "ifconfig: cannot change"
1637 " ethernet address of a logical interface\n");
1638 exit(1);
1639 }
1640
1641 if ((hwaddr = _link_aton(addr, &hwaddrlen)) == NULL) {
1642 if (hwaddrlen == -1)
1643 (void) fprintf(stderr,
1644 "ifconfig: bad ethernet address\n");
1645 else
1646 (void) fprintf(stderr, "ifconfig: malloc() failed\n");
1647 exit(1);
1648 }
1649
1650 if ((retval = dlpi_open(name, &dh, 0)) != DLPI_SUCCESS)
1651 Perrdlpi_exit("cannot dlpi_open() link", name, retval);
1652
1653 retval = dlpi_enabnotify(dh, DL_NOTE_PHYS_ADDR, notifycb, NULL, &id);
1654 if (retval == DLPI_SUCCESS) {
1655 (void) dlpi_disabnotify(dh, id, NULL);
1656 } else {
1657 /*
1658 * This link does not support DL_NOTE_PHYS_ADDR: bring down
1659 * all of the addresses to flush the old hardware address
1660 * information out of IP.
1661 *
1662 * NOTE: Skipping this when DL_NOTE_PHYS_ADDR is supported is
1663 * more than an optimization: in.mpathd will set IFF_OFFLINE
1664 * if it's notified and the new address is a duplicate of
1665 * another in the group -- but the flags manipulation in
1666 * ifaddr_{down,up}() cannot be atomic and thus might clobber
1667 * IFF_OFFLINE, confusing in.mpathd.
1668 */
1669 if (ifaddrlistx(name, IFF_UP, 0, &ifaddrs) == -1)
1670 Perror2_exit(name, "cannot get address list");
1671
1672 ifaddrp = ifaddrs;
1673 for (; ifaddrp != NULL; ifaddrp = ifaddrp->ia_next) {
1674 if (!ifaddr_down(ifaddrp)) {
1675 Perror2_exit(ifaddrp->ia_name,
1676 "cannot bring down");
1677 }
1678 }
1679 }
1680
1681 /*
1682 * Change the hardware address.
1683 */
1684 retval = dlpi_set_physaddr(dh, DL_CURR_PHYS_ADDR, hwaddr, hwaddrlen);
1685 if (retval != DLPI_SUCCESS) {
1686 (void) fprintf(stderr,
1687 "ifconfig: failed setting mac address on %s\n", name);
1688 }
1689 dlpi_close(dh);
1690
1691 /*
1692 * If any addresses were brought down before changing the hardware
1693 * address, bring them up again.
1694 */
1695 for (ifaddrp = ifaddrs; ifaddrp != NULL; ifaddrp = ifaddrp->ia_next) {
1696 if (!ifaddr_up(ifaddrp))
1697 Perror2_exit(ifaddrp->ia_name, "cannot bring up");
1698 }
1699 ifaddrlistx_free(ifaddrs);
1700
1701 return (0);
1702 }
1703
1704 /*
1705 * Print an interface's Ethernet address, if it has one.
1706 */
1707 static void
1708 print_ifether(const char *ifname)
1709 {
1710 int fd;
1711
1712 (void) strncpy(lifr.lifr_name, name, sizeof (lifr.lifr_name));
1713
1714 fd = socket(AF_INET, SOCK_DGRAM, 0);
1715 if (fd == -1 || ioctl(fd, SIOCGLIFFLAGS, &lifr) == -1) {
1716 /*
1717 * It's possible the interface is only configured for
1718 * IPv6; check again with AF_INET6.
1719 */
1720 (void) close(fd);
1721 fd = socket(AF_INET6, SOCK_DGRAM, 0);
1722 if (fd == -1 || ioctl(fd, SIOCGLIFFLAGS, &lifr) == -1) {
1723 (void) close(fd);
1724 return;
1725 }
1726 }
1727 (void) close(fd);
1728
1729 /* VNI and IPMP interfaces don't have MAC addresses */
1730 if (lifr.lifr_flags & (IFF_VIRTUAL|IFF_IPMP))
1731 return;
1732
1733 /* IP tunnels also don't have Ethernet-like MAC addresses */
1734 if (ifconfig_dladm_open(ifname, DATALINK_CLASS_IPTUN, NULL) ==
1735 DLADM_STATUS_OK)
1736 return;
1737
1738 dlpi_print_address(ifname);
1739 }
1740
1741 /*
1742 * static int find_all_interfaces(struct lifconf *lifcp, char **buf,
1743 * int64_t lifc_flags)
1744 *
1745 * It finds all active data links.
1746 *
1747 * It takes in input a pointer to struct lifconf to receive interfaces
1748 * informations, a **char to hold allocated buffer, and a lifc_flags.
1749 *
1750 * Return values:
1751 * 0 = everything OK
1752 * -1 = problem
1753 */
1754 static int
1755 find_all_interfaces(struct lifconf *lifcp, char **buf, int64_t lifc_flags)
1756 {
1757 unsigned bufsize;
1758 int n;
1759 ni_t *nip;
1760 struct lifreq *lifrp;
1761 dladm_status_t status;
1762
1763 if (!dlh_opened) {
1764 status = ifconfig_dladm_open(NULL, 0, NULL);
1765 if (status != DLADM_STATUS_OK)
1766 dladmerr_exit(status, "unable to open dladm handle");
1767 }
1768
1769 (void) dlpi_walk(ni_entry, dlh, 0);
1770
1771 /* Now, translate the linked list into a struct lifreq buffer */
1772 if (num_ni == 0) {
1773 lifcp->lifc_family = AF_UNSPEC;
1774 lifcp->lifc_flags = lifc_flags;
1775 lifcp->lifc_len = 0;
1776 lifcp->lifc_buf = NULL;
1777 return (0);
1778 }
1779
1780 bufsize = num_ni * sizeof (struct lifreq);
1781 if ((*buf = malloc(bufsize)) == NULL)
1782 Perror0_exit("find_all_interfaces: malloc failed");
1783
1784 lifcp->lifc_family = AF_UNSPEC;
1785 lifcp->lifc_flags = lifc_flags;
1786 lifcp->lifc_len = bufsize;
1787 lifcp->lifc_buf = *buf;
1788
1789 for (n = 0, lifrp = lifcp->lifc_req; n < num_ni; n++, lifrp++) {
1790 nip = ni_list;
1791 (void) strncpy(lifrp->lifr_name, nip->ni_name,
1792 sizeof (lifr.lifr_name));
1793 ni_list = nip->ni_next;
1794 free(nip);
1795 }
1796 return (0);
1797 }
1798
1799 /*
1800 * Create the next unused logical interface using the original name
1801 * and assign the address (and mask if '/<n>' is part of the address).
1802 * Use the new logical interface for subsequent subcommands by updating
1803 * the name variable.
1804 *
1805 * This allows syntax like:
1806 * ifconfig le0 addif 109.106.86.130 netmask + up \
1807 * addif 109.106.86.131 netmask + up
1808 */
1809 /* ARGSUSED */
1810 static int
1811 addif(char *str, int64_t param)
1812 {
1813 int prefixlen = 0;
1814 struct sockaddr_storage laddr;
1815 struct sockaddr_storage mask;
1816 struct sockaddr_in6 *sin6;
1817 struct sockaddr_in *sin;
1818 ipadm_status_t istatus;
1819 char cidraddr[BUFSIZ];
1820 char addrstr[INET6_ADDRSTRLEN];
1821
1822 (void) strncpy(name, origname, sizeof (name));
1823
1824 if (strchr(name, ':') != NULL) {
1825 (void) fprintf(stderr,
1826 "ifconfig: addif: bad physical interface name %s\n",
1827 name);
1828 exit(1);
1829 }
1830
1831 /*
1832 * clear so parser will interpret next address as source followed
1833 * by possible dest
1834 */
1835 setaddr = 0;
1836 (*afp->af_getaddr)(str, (struct sockaddr *)&laddr, &prefixlen);
1837
1838 (void) memset(&mask, 0, sizeof (mask));
1839 mask.ss_family = afp->af_af;
1840
1841 switch (prefixlen) {
1842 case NO_PREFIX:
1843 /* Nothing there - ok */
1844 break;
1845 case BAD_ADDR:
1846 (void) fprintf(stderr,
1847 "ifconfig: Bad prefix length in %s\n", str);
1848 exit(1);
1849 default:
1850 (void) memset(&mask, 0, sizeof (mask));
1851 mask.ss_family = afp->af_af;
1852 if (afp->af_af == AF_INET6) {
1853 sin6 = (struct sockaddr_in6 *)&mask;
1854 if (!in_prefixlentomask(prefixlen, IPV6_ABITS,
1855 (uchar_t *)&sin6->sin6_addr)) {
1856 (void) fprintf(stderr, "ifconfig: "
1857 "Bad prefix length: %d\n",
1858 prefixlen);
1859 exit(1);
1860 }
1861 } else {
1862 sin = (struct sockaddr_in *)&mask;
1863 if (!in_prefixlentomask(prefixlen, IP_ABITS,
1864 (uchar_t *)&sin->sin_addr)) {
1865 (void) fprintf(stderr, "ifconfig: "
1866 "Bad prefix length: %d\n",
1867 prefixlen);
1868 exit(1);
1869 }
1870 }
1871 g_netmask_set = G_NETMASK_NIL;
1872 break;
1873 }
1874
1875 /*
1876 * This is a "hack" to get around the problem of SIOCLIFADDIF. The
1877 * problem is that this ioctl does not include the netmask when
1878 * adding a logical interface. This is the same problem described
1879 * in the ifconfig() comments. To get around this problem, we first
1880 * add the logical interface with a 0 address. After that, we set
1881 * the netmask if provided. Finally we set the interface address.
1882 */
1883 (void) strncpy(lifr.lifr_name, name, sizeof (lifr.lifr_name));
1884 (void) memset(&lifr.lifr_addr, 0, sizeof (lifr.lifr_addr));
1885
1886 /* Note: no need to do DAD here since the interface isn't up yet. */
1887
1888 if (ioctl(s, SIOCLIFADDIF, (caddr_t)&lifr) < 0)
1889 Perror0_exit("addif: SIOCLIFADDIF");
1890
1891 (void) printf("Created new logical interface %s\n",
1892 lifr.lifr_name);
1893 (void) strncpy(name, lifr.lifr_name, sizeof (name));
1894
1895 /*
1896 * Check and see if any "netmask" command is used and perform the
1897 * necessary operation.
1898 */
1899 set_mask_lifreq(&lifr, &laddr, &mask);
1900
1901 /* This check is temporary until libipadm supports IPMP interfaces. */
1902 if (ifconfig_use_libipadm(s, name)) {
1903 /*
1904 * We added the logical interface above before calling
1905 * ipadm_create_addr(), because, with IPH_LEGACY, we need
1906 * to do an addif for `ifconfig ce0 addif <addr>' but not for
1907 * `ifconfig ce0 <addr>'. libipadm does not have a flag to
1908 * to differentiate between these two cases. To keep it simple,
1909 * we always create the logical interface and pass it to
1910 * libipadm instead of requiring libipadm to addif for some
1911 * cases and not do addif for other cases.
1912 */
1913 istatus = ipadm_create_addrobj(IPADM_ADDR_STATIC, name,
1914 &ipaddr);
1915 if (istatus != IPADM_SUCCESS)
1916 ipadmerr_exit(istatus, "addif");
1917
1918 if (af == AF_INET) {
1919 sin = (struct sockaddr_in *)&laddr;
1920 (void) inet_ntop(AF_INET, &sin->sin_addr, addrstr,
1921 sizeof (addrstr));
1922 } else {
1923 sin6 = (struct sockaddr_in6 *)&laddr;
1924 (void) inet_ntop(AF_INET6, &sin6->sin6_addr, addrstr,
1925 sizeof (addrstr));
1926 }
1927 /*
1928 * lifr.lifr_addr, which is updated by set_mask_lifreq()
1929 * will contain the right mask to use.
1930 */
1931 prefixlen = mask2plen((struct sockaddr *)&lifr.lifr_addr);
1932
1933 (void) snprintf(cidraddr, sizeof (cidraddr), "%s/%d",
1934 addrstr, prefixlen);
1935
1936 istatus = ipadm_set_addr(ipaddr, cidraddr, af);
1937
1938 if (istatus != IPADM_SUCCESS)
1939 ipadmerr_exit(istatus, "could not set address");
1940 setaddr++;
1941 /*
1942 * address will be set by the parser after nextarg
1943 * has been scanned
1944 */
1945 return (0);
1946 }
1947
1948 /*
1949 * Only set the netmask if "netmask" command is used or a prefix is
1950 * provided.
1951 */
1952 if (g_netmask_set == G_NETMASK_SET || prefixlen >= 0) {
1953 /*
1954 * lifr.lifr_addr already contains netmask from
1955 * set_mask_lifreq().
1956 */
1957 if (ioctl(s, SIOCSLIFNETMASK, (caddr_t)&lifr) < 0)
1958 Perror0_exit("addif: SIOCSLIFNETMASK");
1959 }
1960
1961 /* Finally, we set the interface address. */
1962 lifr.lifr_addr = laddr;
1963 if (ioctl(s, SIOCSLIFADDR, (caddr_t)&lifr) < 0)
1964 Perror0_exit("SIOCSLIFADDR");
1965
1966 /*
1967 * let parser know we got a source.
1968 * Next address, if given, should be dest
1969 */
1970 setaddr++;
1971 return (0);
1972 }
1973
1974 /*
1975 * Remove a logical interface based on its IP address. Unlike addif
1976 * there is no '/<n>' here.
1977 * Verifies that the interface is down before it is removed.
1978 */
1979 /* ARGSUSED */
1980 static int
1981 removeif(char *str, int64_t param)
1982 {
1983 struct sockaddr_storage laddr;
1984 ipadm_status_t istatus;
1985 ipadm_addr_info_t *ainfo, *ainfop;
1986
1987 if (strchr(name, ':') != NULL) {
1988 (void) fprintf(stderr,
1989 "ifconfig: removeif: bad physical interface name %s\n",
1990 name);
1991 exit(1);
1992 }
1993
1994 (*afp->af_getaddr)(str, &laddr, NULL);
1995
1996 /*
1997 * Following check is temporary until libipadm supports
1998 * IPMP interfaces.
1999 */
2000 if (!ifconfig_use_libipadm(s, name))
2001 goto delete;
2002
2003 /*
2004 * Get all addresses and search this address among the active
2005 * addresses. If an address object was found, delete using
2006 * ipadm_delete_addr().
2007 */
2008 istatus = ipadm_addr_info(iph, name, &ainfo, 0, LIFC_DEFAULT);
2009 if (istatus != IPADM_SUCCESS)
2010 ipadmerr_exit(istatus, "removeif");
2011
2012 for (ainfop = ainfo; ainfop != NULL; ainfop = IA_NEXT(ainfop))
2013 if (sockaddrcmp(
2014 (struct sockaddr_storage *)ainfop->ia_ifa.ifa_addr, &laddr))
2015 break;
2016
2017 if (ainfop != NULL) {
2018 if (strchr(ainfop->ia_ifa.ifa_name, ':') == NULL) {
2019 (void) fprintf(stderr,
2020 "ifconfig: removeif: cannot remove interface: %s\n",
2021 name);
2022 exit(1);
2023 }
2024 if (ainfop->ia_aobjname[0] != '\0') {
2025 istatus = ipadm_delete_addr(iph, ainfop->ia_aobjname,
2026 IPADM_OPT_ACTIVE);
2027 if (istatus != IPADM_SUCCESS) {
2028 ipadmerr_exit(istatus,
2029 "could not delete address");
2030 }
2031 ipadm_free_addr_info(ainfo);
2032 return (0);
2033 }
2034 }
2035 ipadm_free_addr_info(ainfo);
2036
2037 delete:
2038 /*
2039 * An address object for this address was not found in ipadm.
2040 * Delete with SIOCLIFREMOVEIF.
2041 */
2042 lifr.lifr_addr = laddr;
2043 (void) strncpy(lifr.lifr_name, name, sizeof (lifr.lifr_name));
2044 if (ioctl(s, SIOCLIFREMOVEIF, (caddr_t)&lifr) < 0) {
2045 if (errno == EBUSY) {
2046 /* This can only happen if ipif_id = 0 */
2047 (void) fprintf(stderr,
2048 "ifconfig: removeif: cannot remove interface: %s\n",
2049 name);
2050 exit(1);
2051 }
2052 Perror0_exit("removeif: SIOCLIFREMOVEIF");
2053 }
2054 return (0);
2055 }
2056
2057 /*
2058 * Set the address token for IPv6.
2059 */
2060 /* ARGSUSED */
2061 static int
2062 setiftoken(char *addr, int64_t param)
2063 {
2064 int prefixlen = 0;
2065 struct sockaddr_in6 token;
2066
2067 in6_getaddr(addr, (struct sockaddr *)&token, &prefixlen);
2068 switch (prefixlen) {
2069 case NO_PREFIX:
2070 (void) fprintf(stderr,
2071 "ifconfig: Missing prefix length in subnet %s\n", addr);
2072 exit(1);
2073 /* NOTREACHED */
2074 case BAD_ADDR:
2075 (void) fprintf(stderr,
2076 "ifconfig: Bad prefix length in %s\n", addr);
2077 exit(1);
2078 default:
2079 break;
2080 }
2081 (void) memcpy(&lifr.lifr_addr, &token, sizeof (token));
2082 lifr.lifr_addrlen = prefixlen;
2083 (void) strncpy(lifr.lifr_name, name, sizeof (lifr.lifr_name));
2084 if (ioctl(s, SIOCSLIFTOKEN, (caddr_t)&lifr) < 0) {
2085 Perror0_exit("setiftoken: SIOCSLIFTOKEN");
2086 }
2087 return (0);
2088 }
2089
2090 /* ARGSUSED */
2091 static int
2092 setifgroupname(char *grname, int64_t param)
2093 {
2094 lifgroupinfo_t lifgr;
2095 struct lifreq lifrl;
2096 ifaddrlistx_t *ifaddrp, *nextifaddrp;
2097 ifaddrlistx_t *ifaddrs = NULL, *downaddrs = NULL;
2098 int af;
2099
2100 if (debug) {
2101 (void) printf("Setting groupname %s on interface %s\n",
2102 grname, name);
2103 }
2104
2105 (void) strlcpy(lifrl.lifr_name, name, LIFNAMSIZ);
2106 (void) strlcpy(lifrl.lifr_groupname, grname, LIFGRNAMSIZ);
2107
2108 while (ioctl(s, SIOCSLIFGROUPNAME, &lifrl) == -1) {
2109 switch (errno) {
2110 case ENOENT:
2111 /*
2112 * The group doesn't yet exist; create it and repeat.
2113 */
2114 af = afp->af_af;
2115 if (create_ipmp(grname, af, NULL, _B_TRUE) == -1) {
2116 if (errno == EEXIST)
2117 continue;
2118
2119 Perror2(grname, "cannot create IPMP group");
2120 goto fail;
2121 }
2122 continue;
2123
2124 case EALREADY:
2125 /*
2126 * The interface is already in another group; must
2127 * remove existing membership first.
2128 */
2129 lifrl.lifr_groupname[0] = '\0';
2130 if (ioctl(s, SIOCSLIFGROUPNAME, &lifrl) == -1) {
2131 Perror2(name, "cannot remove existing "
2132 "IPMP group membership");
2133 goto fail;
2134 }
2135 (void) strlcpy(lifrl.lifr_groupname, grname,
2136 LIFGRNAMSIZ);
2137 continue;
2138
2139 case EAFNOSUPPORT:
2140 /*
2141 * The group exists, but it's not configured with the
2142 * address families the interface needs. Since only
2143 * two address families are currently supported, just
2144 * configure the "other" address family. Note that we
2145 * may race with group deletion or creation by another
2146 * process (ENOENT or EEXIST); in such cases we repeat
2147 * our original SIOCSLIFGROUPNAME.
2148 */
2149 (void) strlcpy(lifgr.gi_grname, grname, LIFGRNAMSIZ);
2150 if (ioctl(s, SIOCGLIFGROUPINFO, &lifgr) == -1) {
2151 if (errno == ENOENT)
2152 continue;
2153
2154 Perror2(grname, "SIOCGLIFGROUPINFO");
2155 goto fail;
2156 }
2157
2158 af = lifgr.gi_v4 ? AF_INET6 : AF_INET;
2159 if (create_ipmp(grname, af, lifgr.gi_grifname,
2160 _B_TRUE) == -1) {
2161 if (errno == EEXIST)
2162 continue;
2163
2164 Perror2(grname, "cannot configure IPMP group");
2165 goto fail;
2166 }
2167 continue;
2168
2169 case EADDRINUSE:
2170 /*
2171 * Some addresses are in-use (or under control of DAD).
2172 * Bring them down and retry the group join operation.
2173 * We will bring them back up after the interface has
2174 * been placed in the group.
2175 */
2176 if (ifaddrlistx(lifrl.lifr_name, IFF_UP|IFF_DUPLICATE,
2177 0, &ifaddrs) == -1) {
2178 Perror2(grname, "cannot get address list");
2179 goto fail;
2180 }
2181
2182 ifaddrp = ifaddrs;
2183 for (; ifaddrp != NULL; ifaddrp = nextifaddrp) {
2184 if (!ifaddr_down(ifaddrp)) {
2185 ifaddrs = ifaddrp;
2186 goto fail;
2187 }
2188 nextifaddrp = ifaddrp->ia_next;
2189 ifaddrp->ia_next = downaddrs;
2190 downaddrs = ifaddrp;
2191 }
2192 ifaddrs = NULL;
2193 continue;
2194
2195 case EADDRNOTAVAIL: {
2196 /*
2197 * Some data addresses are under application control.
2198 * For some of these (e.g., ADDRCONF), the application
2199 * should remove the address, in which case we retry a
2200 * few times (since the application's action is not
2201 * atomic with respect to us) before bailing out and
2202 * informing the user.
2203 */
2204 int ntries, nappaddr = 0;
2205 const if_appflags_t *iap = if_appflags_tbl;
2206
2207 for (; iap->ia_app != NULL; iap++) {
2208 ntries = 0;
2209 again:
2210 if (ifaddrlistx(lifrl.lifr_name, iap->ia_flag,
2211 IFF_NOFAILOVER, &ifaddrs) == -1) {
2212 (void) fprintf(stderr, "ifconfig: %s: "
2213 "cannot get data addresses managed "
2214 "by %s\n", lifrl.lifr_name,
2215 iap->ia_app);
2216 goto fail;
2217 }
2218
2219 if (ifaddrs == NULL)
2220 continue;
2221
2222 ifaddrlistx_free(ifaddrs);
2223 ifaddrs = NULL;
2224
2225 if (++ntries < iap->ia_tries) {
2226 (void) poll(NULL, 0, 100);
2227 goto again;
2228 }
2229
2230 (void) fprintf(stderr, "ifconfig: cannot join "
2231 "IPMP group: %s has data addresses managed "
2232 "by %s\n", lifrl.lifr_name, iap->ia_app);
2233 nappaddr++;
2234 }
2235 if (nappaddr > 0)
2236 goto fail;
2237 continue;
2238 }
2239 default:
2240 Perror2(name, "SIOCSLIFGROUPNAME");
2241 goto fail;
2242 }
2243 }
2244
2245 /*
2246 * If the interface being moved is under the control of `ipmgmtd(1M)'
2247 * dameon then we should inform the daemon about this move, so that
2248 * the daemon can delete the state associated with this interface.
2249 *
2250 * This workaround is needed until the IPMP support in ipadm(1M).
2251 */
2252 ipadm_if_move(iph, name);
2253
2254 /*
2255 * If there were addresses that we had to bring down, it's time to
2256 * bring them up again. As part of bringing them up, the kernel will
2257 * automatically move them to the new IPMP interface.
2258 */
2259 for (ifaddrp = downaddrs; ifaddrp != NULL; ifaddrp = ifaddrp->ia_next) {
2260 if (!ifaddr_up(ifaddrp) && errno != ENXIO) {
2261 (void) fprintf(stderr, "ifconfig: cannot bring back up "
2262 "%s: %s\n", ifaddrp->ia_name, strerror(errno));
2263 }
2264 }
2265 ifaddrlistx_free(downaddrs);
2266 return (0);
2267 fail:
2268 /*
2269 * Attempt to bring back up any interfaces that we downed.
2270 */
2271 for (ifaddrp = downaddrs; ifaddrp != NULL; ifaddrp = ifaddrp->ia_next) {
2272 if (!ifaddr_up(ifaddrp) && errno != ENXIO) {
2273 (void) fprintf(stderr, "ifconfig: cannot bring back up "
2274 "%s: %s\n", ifaddrp->ia_name, strerror(errno));
2275 }
2276 }
2277 ifaddrlistx_free(downaddrs);
2278 ifaddrlistx_free(ifaddrs);
2279
2280 /*
2281 * We'd return -1, but foreachinterface() doesn't propagate the error
2282 * into the exit status, so we're forced to explicitly exit().
2283 */
2284 exit(1);
2285 /* NOTREACHED */
2286 }
2287
2288 static boolean_t
2289 modcheck(const char *ifname)
2290 {
2291 (void) strlcpy(lifr.lifr_name, ifname, sizeof (lifr.lifr_name));
2292
2293 if (ioctl(s, SIOCGLIFFLAGS, &lifr) < 0) {
2294 Perror0("SIOCGLIFFLAGS");
2295 return (_B_FALSE);
2296 }
2297
2298 if (lifr.lifr_flags & IFF_IPMP) {
2299 (void) fprintf(stderr, "ifconfig: %s: module operations not"
2300 " supported on IPMP interfaces\n", ifname);
2301 return (_B_FALSE);
2302 }
2303 if (lifr.lifr_flags & IFF_VIRTUAL) {
2304 (void) fprintf(stderr, "ifconfig: %s: module operations not"
2305 " supported on virtual IP interfaces\n", ifname);
2306 return (_B_FALSE);
2307 }
2308 return (_B_TRUE);
2309 }
2310
2311 /*
2312 * To list all the modules above a given network interface.
2313 */
2314 /* ARGSUSED */
2315 static int
2316 modlist(char *null, int64_t param)
2317 {
2318 int muxid_fd;
2319 int muxfd;
2320 int ipfd_lowstr;
2321 int arpfd_lowstr;
2322 int num_mods;
2323 int i;
2324 struct str_list strlist;
2325 int orig_arpid;
2326
2327 /*
2328 * We'd return -1, but foreachinterface() doesn't propagate the error
2329 * into the exit status, so we're forced to explicitly exit().
2330 */
2331 if (!modcheck(name))
2332 exit(1);
2333
2334 if (ip_domux2fd(&muxfd, &muxid_fd, &ipfd_lowstr, &arpfd_lowstr,
2335 &orig_arpid) < 0) {
2336 return (-1);
2337 }
2338 if ((num_mods = ioctl(ipfd_lowstr, I_LIST, NULL)) < 0) {
2339 Perror0("cannot I_LIST to get the number of modules");
2340 } else {
2341 if (debug > 0) {
2342 (void) printf("Listing (%d) modules above %s\n",
2343 num_mods, name);
2344 }
2345
2346 strlist.sl_nmods = num_mods;
2347 strlist.sl_modlist = malloc(sizeof (struct str_mlist) *
2348 num_mods);
2349 if (strlist.sl_modlist == NULL) {
2350 Perror0("cannot malloc");
2351 } else {
2352 if (ioctl(ipfd_lowstr, I_LIST, (caddr_t)&strlist) < 0) {
2353 Perror0("cannot I_LIST for module names");
2354 } else {
2355 for (i = 0; i < strlist.sl_nmods; i++) {
2356 (void) printf("%d %s\n", i,
2357 strlist.sl_modlist[i].l_name);
2358 }
2359 }
2360 free(strlist.sl_modlist);
2361 }
2362 }
2363 return (ip_plink(muxfd, muxid_fd, ipfd_lowstr, arpfd_lowstr,
2364 orig_arpid));
2365 }
2366
2367 #define MODINSERT_OP 'i'
2368 #define MODREMOVE_OP 'r'
2369
2370 /*
2371 * To insert a module to the stream of the interface. It is just a
2372 * wrapper. The real function is modop().
2373 */
2374 /* ARGSUSED */
2375 static int
2376 modinsert(char *arg, int64_t param)
2377 {
2378 return (modop(arg, MODINSERT_OP));
2379 }
2380
2381 /*
2382 * To remove a module from the stream of the interface. It is just a
2383 * wrapper. The real function is modop().
2384 */
2385 /* ARGSUSED */
2386 static int
2387 modremove(char *arg, int64_t param)
2388 {
2389 return (modop(arg, MODREMOVE_OP));
2390 }
2391
2392 /*
2393 * Helper function for mod*() functions. It gets a fd to the lower IP
2394 * stream and I_PUNLINK's the lower stream. It also initializes the
2395 * global variable lifr.
2396 *
2397 * Param:
2398 * int *muxfd: fd to /dev/udp{,6} for I_PLINK/I_PUNLINK
2399 * int *muxid_fd: fd to /dev/udp{,6} for LIFMUXID
2400 * int *ipfd_lowstr: fd to the lower IP stream.
2401 * int *arpfd_lowstr: fd to the lower ARP stream.
2402 *
2403 * Return:
2404 * -1 if operation fails, 0 otherwise.
2405 *
2406 * Please see the big block comment above ifplumb() for the logic of the
2407 * PLINK/PUNLINK
2408 */
2409 static int
2410 ip_domux2fd(int *muxfd, int *muxid_fd, int *ipfd_lowstr, int *arpfd_lowstr,
2411 int *orig_arpid)
2412 {
2413 uint64_t flags;
2414 char *udp_dev_name;
2415
2416 *orig_arpid = 0;
2417 (void) strncpy(lifr.lifr_name, name, sizeof (lifr.lifr_name));
2418 if (ioctl(s, SIOCGLIFFLAGS, (caddr_t)&lifr) < 0) {
2419 Perror0_exit("status: SIOCGLIFFLAGS");
2420 }
2421 flags = lifr.lifr_flags;
2422 if (flags & IFF_IPV4) {
2423 udp_dev_name = UDP_DEV_NAME;
2424 } else if (flags & IFF_IPV6) {
2425 udp_dev_name = UDP6_DEV_NAME;
2426 } else {
2427 return (-1);
2428 }
2429
2430 if ((*muxid_fd = open(udp_dev_name, O_RDWR)) < 0) {
2431 Perror2("open", udp_dev_name);
2432 return (-1);
2433 }
2434 if (ioctl(*muxid_fd, SIOCGLIFMUXID, (caddr_t)&lifr) < 0) {
2435 Perror2("SIOCGLIFMUXID", udp_dev_name);
2436 return (-1);
2437 }
2438 if (debug > 0) {
2439 (void) printf("ARP_muxid %d IP_muxid %d\n",
2440 lifr.lifr_arp_muxid, lifr.lifr_ip_muxid);
2441 }
2442
2443 /*
2444 * Use /dev/udp{,6} as the mux to avoid linkcycles.
2445 */
2446 if (ipadm_open_arp_on_udp(udp_dev_name, muxfd) != IPADM_SUCCESS)
2447 return (-1);
2448
2449 if (lifr.lifr_arp_muxid != 0) {
2450 if ((*arpfd_lowstr = ioctl(*muxfd, _I_MUXID2FD,
2451 lifr.lifr_arp_muxid)) < 0) {
2452 if ((errno == EINVAL) &&
2453 (flags & (IFF_NOARP | IFF_IPV6))) {
2454 /*
2455 * Some plumbing utilities set the muxid to
2456 * -1 or some invalid value to signify that
2457 * there is no arp stream. Set the muxid to 0
2458 * before trying to unplumb the IP stream.
2459 * IP does not allow the IP stream to be
2460 * unplumbed if it sees a non-null arp muxid,
2461 * for consistency of IP-ARP streams.
2462 */
2463 *orig_arpid = lifr.lifr_arp_muxid;
2464 lifr.lifr_arp_muxid = 0;
2465 (void) ioctl(*muxid_fd, SIOCSLIFMUXID,
2466 (caddr_t)&lifr);
2467 *arpfd_lowstr = -1;
2468 } else {
2469 Perror0("_I_MUXID2FD");
2470 return (-1);
2471 }
2472 } else if (ioctl(*muxfd, I_PUNLINK,
2473 lifr.lifr_arp_muxid) < 0) {
2474 Perror2("I_PUNLINK", udp_dev_name);
2475 return (-1);
2476 }
2477 } else {
2478 *arpfd_lowstr = -1;
2479 }
2480
2481 if ((*ipfd_lowstr = ioctl(*muxfd, _I_MUXID2FD,
2482 lifr.lifr_ip_muxid)) < 0) {
2483 Perror0("_I_MUXID2FD");
2484 /* Undo any changes we made */
2485 if (*orig_arpid != 0) {
2486 lifr.lifr_arp_muxid = *orig_arpid;
2487 (void) ioctl(*muxid_fd, SIOCSLIFMUXID, (caddr_t)&lifr);
2488 }
2489 return (-1);
2490 }
2491 if (ioctl(*muxfd, I_PUNLINK, lifr.lifr_ip_muxid) < 0) {
2492 Perror2("I_PUNLINK", udp_dev_name);
2493 /* Undo any changes we made */
2494 if (*orig_arpid != 0) {
2495 lifr.lifr_arp_muxid = *orig_arpid;
2496 (void) ioctl(*muxid_fd, SIOCSLIFMUXID, (caddr_t)&lifr);
2497 }
2498 return (-1);
2499 }
2500 return (0);
2501 }
2502
2503 /*
2504 * Helper function for mod*() functions. It I_PLINK's back the upper and
2505 * lower IP streams. Note that this function must be called after
2506 * ip_domux2fd(). In ip_domux2fd(), the global variable lifr is initialized
2507 * and ip_plink() needs information in lifr. So ip_domux2fd() and ip_plink()
2508 * must be called in pairs.
2509 *
2510 * Param:
2511 * int muxfd: fd to /dev/udp{,6} for I_PLINK/I_PUNLINK
2512 * int muxid_fd: fd to /dev/udp{,6} for LIFMUXID
2513 * int ipfd_lowstr: fd to the lower IP stream.
2514 * int arpfd_lowstr: fd to the lower ARP stream.
2515 *
2516 * Return:
2517 * -1 if operation fails, 0 otherwise.
2518 *
2519 * Please see the big block comment above ifplumb() for the logic of the
2520 * PLINK/PUNLINK
2521 */
2522 static int
2523 ip_plink(int muxfd, int muxid_fd, int ipfd_lowstr, int arpfd_lowstr,
2524 int orig_arpid)
2525 {
2526 int ip_muxid;
2527
2528 ip_muxid = ioctl(muxfd, I_PLINK, ipfd_lowstr);
2529 if (ip_muxid < 0) {
2530 Perror2("I_PLINK", UDP_DEV_NAME);
2531 return (-1);
2532 }
2533
2534 /*
2535 * If there is an arp stream, plink it. If there is no
2536 * arp stream, then it is possible that the plumbing
2537 * utility could have stored any value in the arp_muxid.
2538 * If so, restore it from orig_arpid.
2539 */
2540 if (arpfd_lowstr != -1) {
2541 if (ioctl(muxfd, I_PLINK, arpfd_lowstr) < 0) {
2542 Perror2("I_PLINK", UDP_DEV_NAME);
2543 return (-1);
2544 }
2545 } else if (orig_arpid != 0) {
2546 /* Undo the changes we did in ip_domux2fd */
2547 lifr.lifr_arp_muxid = orig_arpid;
2548 lifr.lifr_ip_muxid = ip_muxid;
2549 (void) ioctl(muxid_fd, SIOCSLIFMUXID, (caddr_t)&lifr);
2550 }
2551
2552 (void) close(muxfd);
2553 (void) close(muxid_fd);
2554 return (0);
2555 }
2556
2557 /*
2558 * The real function to perform module insertion/removal.
2559 *
2560 * Param:
2561 * char *arg: the argument string module_name@position
2562 * char op: operation, either MODINSERT_OP or MODREMOVE_OP.
2563 *
2564 * Return:
2565 * Before doing ip_domux2fd(), this function calls exit(1) in case of
2566 * error. After ip_domux2fd() is done, it returns -1 for error, 0
2567 * otherwise.
2568 */
2569 static int
2570 modop(char *arg, char op)
2571 {
2572 char *pos_p;
2573 int muxfd;
2574 int muxid_fd;
2575 int ipfd_lowstr; /* IP stream (lower stream of mux) to be plinked */
2576 int arpfd_lowstr; /* ARP stream (lower stream of mux) to be plinked */
2577 struct strmodconf mod;
2578 char *at_char = "@";
2579 char *arg_str;
2580 int orig_arpid;
2581
2582 /*
2583 * We'd return -1, but foreachinterface() doesn't propagate the error
2584 * into the exit status, so we're forced to explicitly exit().
2585 */
2586 if (!modcheck(name))
2587 exit(1);
2588
2589 /* Need to save the original string for -a option. */
2590 if ((arg_str = malloc(strlen(arg) + 1)) == NULL) {
2591 Perror0("cannot malloc");
2592 return (-1);
2593 }
2594 (void) strcpy(arg_str, arg);
2595
2596 if (*arg_str == *at_char) {
2597 (void) fprintf(stderr,
2598 "ifconfig: must supply a module name\n");
2599 exit(1);
2600 }
2601 mod.mod_name = strtok(arg_str, at_char);
2602 if (strlen(mod.mod_name) > FMNAMESZ) {
2603 (void) fprintf(stderr, "ifconfig: module name too long: %s\n",
2604 mod.mod_name);
2605 exit(1);
2606 }
2607
2608 /*
2609 * Need to make sure that the core TCP/IP stack modules are not
2610 * removed. Otherwise, "bad" things can happen. If a module
2611 * is removed and inserted back, it loses its old state. But
2612 * the modules above it still have the old state. E.g. IP assumes
2613 * fast data path while tunnel after re-inserted assumes that it can
2614 * receive M_DATA only in fast data path for which it does not have
2615 * any state. This is a general caveat of _I_REMOVE/_I_INSERT.
2616 */
2617 if (op == MODREMOVE_OP &&
2618 (strcmp(mod.mod_name, ARP_MOD_NAME) == 0 ||
2619 strcmp(mod.mod_name, IP_MOD_NAME) == 0)) {
2620 (void) fprintf(stderr, "ifconfig: cannot remove %s\n",
2621 mod.mod_name);
2622 exit(1);
2623 }
2624
2625 if ((pos_p = strtok(NULL, at_char)) == NULL) {
2626 (void) fprintf(stderr, "ifconfig: must supply a position\n");
2627 exit(1);
2628 }
2629 mod.pos = atoi(pos_p);
2630
2631 if (ip_domux2fd(&muxfd, &muxid_fd, &ipfd_lowstr, &arpfd_lowstr,
2632 &orig_arpid) < 0) {
2633 free(arg_str);
2634 return (-1);
2635 }
2636 switch (op) {
2637 case MODINSERT_OP:
2638 if (debug > 0) {
2639 (void) printf("Inserting module %s at %d\n",
2640 mod.mod_name, mod.pos);
2641 }
2642 if (ioctl(ipfd_lowstr, _I_INSERT, (caddr_t)&mod) < 0) {
2643 Perror2("fail to insert module", mod.mod_name);
2644 }
2645 break;
2646 case MODREMOVE_OP:
2647 if (debug > 0) {
2648 (void) printf("Removing module %s at %d\n",
2649 mod.mod_name, mod.pos);
2650 }
2651 if (ioctl(ipfd_lowstr, _I_REMOVE, (caddr_t)&mod) < 0) {
2652 Perror2("fail to remove module", mod.mod_name);
2653 }
2654 break;
2655 default:
2656 /* Should never get to here. */
2657 (void) fprintf(stderr, "Unknown operation\n");
2658 break;
2659 }
2660 free(arg_str);
2661 return (ip_plink(muxfd, muxid_fd, ipfd_lowstr, arpfd_lowstr,
2662 orig_arpid));
2663 }
2664
2665 static int
2666 modify_tun(iptun_params_t *params)
2667 {
2668 dladm_status_t status;
2669
2670 if ((status = ifconfig_dladm_open(name, DATALINK_CLASS_IPTUN,
2671 &params->iptun_param_linkid)) == DLADM_STATUS_OK)
2672 status = dladm_iptun_modify(dlh, params, DLADM_OPT_ACTIVE);
2673 if (status != DLADM_STATUS_OK)
2674 dladmerr_exit(status, name);
2675 return (0);
2676 }
2677
2678 /*
2679 * Set tunnel source address
2680 */
2681 /* ARGSUSED */
2682 static int
2683 setiftsrc(char *addr, int64_t param)
2684 {
2685 iptun_params_t params;
2686
2687 params.iptun_param_flags = IPTUN_PARAM_LADDR;
2688 (void) strlcpy(params.iptun_param_laddr, addr,
2689 sizeof (params.iptun_param_laddr));
2690 return (modify_tun(&params));
2691 }
2692
2693 /*
2694 * Set tunnel destination address
2695 */
2696 /* ARGSUSED */
2697 static int
2698 setiftdst(char *addr, int64_t param)
2699 {
2700 iptun_params_t params;
2701
2702 params.iptun_param_flags = IPTUN_PARAM_RADDR;
2703 (void) strlcpy(params.iptun_param_raddr, addr,
2704 sizeof (params.iptun_param_raddr));
2705 return (modify_tun(&params));
2706 }
2707
2708 static int
2709 set_tun_prop(const char *propname, char *value)
2710 {
2711 dladm_status_t status;
2712 datalink_id_t linkid;
2713
2714 status = ifconfig_dladm_open(name, DATALINK_CLASS_IPTUN, &linkid);
2715 if (status == DLADM_STATUS_OK) {
2716 status = dladm_set_linkprop(dlh, linkid, propname, &value, 1,
2717 DLADM_OPT_ACTIVE);
2718 }
2719 if (status != DLADM_STATUS_OK)
2720 dladmerr_exit(status, name);
2721 return (0);
2722 }
2723
2724 /* Set tunnel encapsulation limit. */
2725 /* ARGSUSED */
2726 static int
2727 set_tun_encap_limit(char *arg, int64_t param)
2728 {
2729 return (set_tun_prop("encaplimit", arg));
2730 }
2731
2732 /* Disable encapsulation limit. */
2733 /* ARGSUSED */
2734 static int
2735 clr_tun_encap_limit(char *arg, int64_t param)
2736 {
2737 return (set_tun_encap_limit("-1", 0));
2738 }
2739
2740 /* Set tunnel hop limit. */
2741 /* ARGSUSED */
2742 static int
2743 set_tun_hop_limit(char *arg, int64_t param)
2744 {
2745 return (set_tun_prop("hoplimit", arg));
2746 }
2747
2748 /* Set zone ID */
2749 static int
2750 setzone(char *arg, int64_t param)
2751 {
2752 zoneid_t zoneid = GLOBAL_ZONEID;
2753
2754 if (param == NEXTARG) {
2755 /* zone must be active */
2756 if ((zoneid = getzoneidbyname(arg)) == -1) {
2757 (void) fprintf(stderr,
2758 "ifconfig: unknown zone '%s'\n", arg);
2759 exit(1);
2760 }
2761 }
2762 (void) strlcpy(lifr.lifr_name, name, sizeof (lifr.lifr_name));
2763 lifr.lifr_zoneid = zoneid;
2764 if (ioctl(s, SIOCSLIFZONE, (caddr_t)&lifr) == -1)
2765 Perror0_exit("SIOCSLIFZONE");
2766 return (0);
2767 }
2768
2769 /* Put interface into all zones */
2770 /* ARGSUSED */
2771 static int
2772 setallzones(char *arg, int64_t param)
2773 {
2774 (void) strlcpy(lifr.lifr_name, name, sizeof (lifr.lifr_name));
2775 lifr.lifr_zoneid = ALL_ZONES;
2776 if (ioctl(s, SIOCSLIFZONE, (caddr_t)&lifr) == -1)
2777 Perror0_exit("SIOCSLIFZONE");
2778 return (0);
2779 }
2780
2781 /* Set source address to use */
2782 /* ARGSUSED */
2783 static int
2784 setifsrc(char *arg, int64_t param)
2785 {
2786 uint_t ifindex = 0;
2787 int rval;
2788
2789 (void) strncpy(lifr.lifr_name, name, sizeof (lifr.lifr_name));
2790
2791 /*
2792 * Argument can be either an interface name or "none". The latter means
2793 * that any previous selection is cleared.
2794 */
2795
2796 if (strchr(arg, ':') != NULL) {
2797 (void) fprintf(stderr,
2798 "ifconfig: Cannot specify logical interface for usesrc \n");
2799 exit(1);
2800 }
2801
2802 rval = strcmp(arg, NONE_STR);
2803 if (rval != 0) {
2804 if ((ifindex = if_nametoindex(arg)) == 0) {
2805 (void) strncpy(lifr.lifr_name, arg, LIFNAMSIZ);
2806 Perror0_exit("Could not get interface index");
2807 }
2808 lifr.lifr_index = ifindex;
2809 } else {
2810 if (ioctl(s, SIOCGLIFUSESRC, (caddr_t)&lifr) != 0)
2811 Perror0_exit("Not a valid usesrc consumer");
2812 lifr.lifr_index = 0;
2813 }
2814
2815 if (debug)
2816 (void) printf("setifsrc: lifr_name %s, lifr_index %d\n",
2817 lifr.lifr_name, lifr.lifr_index);
2818
2819 if (ioctl(s, SIOCSLIFUSESRC, (caddr_t)&lifr) == -1) {
2820 if (rval == 0)
2821 Perror0_exit("Cannot reset usesrc group");
2822 else
2823 Perror0_exit("Could not set source interface");
2824 }
2825
2826 return (0);
2827 }
2828
2829 /*
2830 * Print the interface status line associated with `ifname'
2831 */
2832 static void
2833 ifstatus(const char *ifname)
2834 {
2835 uint64_t flags;
2836 char if_usesrc_name[LIFNAMSIZ];
2837 char *newbuf;
2838 int n, numifs, rval = 0;
2839 struct lifreq *lifrp;
2840 struct lifsrcof lifs;
2841
2842 (void) strncpy(lifr.lifr_name, ifname, sizeof (lifr.lifr_name));
2843 if (ioctl(s, SIOCGLIFFLAGS, (caddr_t)&lifr) < 0) {
2844 Perror0_exit("status: SIOCGLIFFLAGS");
2845 }
2846 flags = lifr.lifr_flags;
2847
2848 /*
2849 * In V4 compatibility mode, we don't print the IFF_IPV4 flag or
2850 * interfaces with IFF_IPV6 set.
2851 */
2852 if (v4compat) {
2853 flags &= ~IFF_IPV4;
2854 if (flags & IFF_IPV6)
2855 return;
2856 }
2857
2858 (void) printf("%s: ", ifname);
2859 print_flags(flags);
2860
2861 (void) strncpy(lifr.lifr_name, ifname, sizeof (lifr.lifr_name));
2862 if (ioctl(s, SIOCGLIFMETRIC, (caddr_t)&lifr) < 0) {
2863 Perror0_exit("status: SIOCGLIFMETRIC");
2864 } else {
2865 if (lifr.lifr_metric)
2866 (void) printf(" metric %d", lifr.lifr_metric);
2867 }
2868 if (ioctl(s, SIOCGLIFMTU, (caddr_t)&lifr) >= 0)
2869 (void) printf(" mtu %u", lifr.lifr_mtu);
2870
2871 /* don't print index or zone when in compatibility mode */
2872 if (!v4compat) {
2873 if (ioctl(s, SIOCGLIFINDEX, (caddr_t)&lifr) >= 0)
2874 (void) printf(" index %d", lifr.lifr_index);
2875 /*
2876 * Stack instances use GLOBAL_ZONEID for IP data structures
2877 * even in the non-global zone.
2878 */
2879 if (ioctl(s, SIOCGLIFZONE, (caddr_t)&lifr) >= 0 &&
2880 lifr.lifr_zoneid != getzoneid() &&
2881 lifr.lifr_zoneid != GLOBAL_ZONEID) {
2882 char zone_name[ZONENAME_MAX];
2883
2884 if (lifr.lifr_zoneid == ALL_ZONES) {
2885 (void) printf("\n\tall-zones");
2886 } else if (getzonenamebyid(lifr.lifr_zoneid, zone_name,
2887 sizeof (zone_name)) < 0) {
2888 (void) printf("\n\tzone %d", lifr.lifr_zoneid);
2889 } else {
2890 (void) printf("\n\tzone %s", zone_name);
2891 }
2892 }
2893 }
2894
2895 if (ioctl(s, SIOCGLIFINDEX, (caddr_t)&lifr) >= 0) {
2896 lifs.lifs_ifindex = lifr.lifr_index;
2897
2898 /*
2899 * Find the number of interfaces that use this interfaces'
2900 * address as a source address
2901 */
2902 lifs.lifs_buf = NULL;
2903 lifs.lifs_maxlen = 0;
2904 for (;;) {
2905 /* The first pass will give the bufsize we need */
2906 rval = ioctl(s, SIOCGLIFSRCOF, (char *)&lifs);
2907 if (rval < 0) {
2908 if (lifs.lifs_buf != NULL) {
2909 free(lifs.lifs_buf);
2910 lifs.lifs_buf = NULL;
2911 }
2912 lifs.lifs_len = 0;
2913 break;
2914 }
2915 if (lifs.lifs_len <= lifs.lifs_maxlen)
2916 break;
2917 /* Use kernel's size + a small margin to avoid loops */
2918 lifs.lifs_maxlen = lifs.lifs_len +
2919 5 * sizeof (struct lifreq);
2920 /* For the first pass, realloc acts like malloc */
2921 newbuf = realloc(lifs.lifs_buf, lifs.lifs_maxlen);
2922 if (newbuf == NULL) {
2923 if (lifs.lifs_buf != NULL) {
2924 free(lifs.lifs_buf);
2925 lifs.lifs_buf = NULL;
2926 }
2927 lifs.lifs_len = 0;
2928 break;
2929 }
2930 lifs.lifs_buf = newbuf;
2931 }
2932
2933
2934 numifs = lifs.lifs_len / sizeof (struct lifreq);
2935 if (numifs > 0) {
2936 lifrp = lifs.lifs_req;
2937 (void) printf("\n\tsrcof");
2938 for (n = numifs; n > 0; n--, lifrp++) {
2939 (void) printf(" %s", lifrp->lifr_name);
2940 }
2941 }
2942
2943 if (lifs.lifs_buf != NULL)
2944 free(lifs.lifs_buf);
2945 }
2946
2947 /* Find the interface whose source address this interface uses */
2948 if (ioctl(s, SIOCGLIFUSESRC, (caddr_t)&lifr) == 0) {
2949 if (lifr.lifr_index != 0) {
2950 if (if_indextoname(lifr.lifr_index,
2951 if_usesrc_name) == NULL) {
2952 (void) printf("\n\tusesrc ifIndex %d",
2953 lifr.lifr_index);
2954 } else {
2955 (void) printf("\n\tusesrc %s", if_usesrc_name);
2956 }
2957 }
2958 }
2959
2960 (void) putchar('\n');
2961 }
2962
2963 /*
2964 * Print the status of the interface. If an address family was
2965 * specified, show it and it only; otherwise, show them all.
2966 */
2967 static void
2968 status(void)
2969 {
2970 struct afswtch *p = afp;
2971 uint64_t flags;
2972 datalink_id_t linkid;
2973
2974 (void) strncpy(lifr.lifr_name, name, sizeof (lifr.lifr_name));
2975 if (ioctl(s, SIOCGLIFFLAGS, (caddr_t)&lifr) < 0) {
2976 Perror0_exit("status: SIOCGLIFFLAGS");
2977 }
2978
2979 flags = lifr.lifr_flags;
2980
2981 /*
2982 * Only print the interface status if the address family matches
2983 * the interface family flag.
2984 */
2985 if (p != NULL) {
2986 if (((p->af_af == AF_INET6) && (flags & IFF_IPV4)) ||
2987 ((p->af_af == AF_INET) && (flags & IFF_IPV6)))
2988 return;
2989 }
2990
2991 /*
2992 * In V4 compatibility mode, don't print IFF_IPV6 interfaces.
2993 */
2994 if (v4compat && (flags & IFF_IPV6))
2995 return;
2996
2997 ifstatus(name);
2998
2999 if (ifconfig_dladm_open(name, DATALINK_CLASS_IPTUN, &linkid) ==
3000 DLADM_STATUS_OK)
3001 tun_status(linkid);
3002
3003 if (p != NULL) {
3004 (*p->af_status)(1, flags);
3005 } else {
3006 for (p = afs; p->af_name; p++) {
3007 /* set global af for use in p->af_status */
3008 af = p->af_af;
3009 (*p->af_status)(0, flags);
3010 }
3011
3012 /*
3013 * Historically, 'ether' has been an address family,
3014 * so print it here.
3015 */
3016 print_ifether(name);
3017 }
3018 }
3019
3020 /*
3021 * Print the status of the interface in a format that can be used to
3022 * reconfigure the interface later. Code stolen from status() above.
3023 */
3024 /* ARGSUSED */
3025 static int
3026 configinfo(char *null, int64_t param)
3027 {
3028 char *cp;
3029 struct afswtch *p = afp;
3030 uint64_t flags;
3031 char lifname[LIFNAMSIZ];
3032 char if_usesrc_name[LIFNAMSIZ];
3033
3034 (void) strncpy(lifr.lifr_name, name, sizeof (lifr.lifr_name));
3035
3036 if (ioctl(s, SIOCGLIFFLAGS, (caddr_t)&lifr) < 0) {
3037 Perror0_exit("status: SIOCGLIFFLAGS");
3038 }
3039 flags = lifr.lifr_flags;
3040
3041 if (debug) {
3042 (void) printf("configinfo: name %s flags 0x%llx af_af %d\n",
3043 name, flags, p != NULL ? p->af_af : -1);
3044 }
3045
3046 /*
3047 * Build the interface name to print (we cannot directly use `name'
3048 * because one cannot "plumb" ":0" interfaces).
3049 */
3050 (void) strlcpy(lifname, name, LIFNAMSIZ);
3051 if ((cp = strchr(lifname, ':')) != NULL && atoi(cp + 1) == 0)
3052 *cp = '\0';
3053
3054 /*
3055 * if the interface is IPv4
3056 * if we have a IPv6 address family restriction return
3057 * so it won't print
3058 * if we are in IPv4 compatibility mode, clear out IFF_IPV4
3059 * so we don't print it.
3060 */
3061 if (flags & IFF_IPV4) {
3062 if (p && p->af_af == AF_INET6)
3063 return (-1);
3064 if (v4compat)
3065 flags &= ~IFF_IPV4;
3066
3067 (void) printf("%s inet plumb", lifname);
3068 } else if (flags & IFF_IPV6) {
3069 /*
3070 * else if the interface is IPv6
3071 * if we have a IPv4 address family restriction return
3072 * or we are in IPv4 compatibiltiy mode, return.
3073 */
3074 if (p && p->af_af == AF_INET)
3075 return (-1);
3076 if (v4compat)
3077 return (-1);
3078
3079 (void) printf("%s inet6 plumb", lifname);
3080 }
3081
3082 (void) strncpy(lifr.lifr_name, name, sizeof (lifr.lifr_name));
3083 if (ioctl(s, SIOCGLIFMETRIC, (caddr_t)&lifr) < 0) {
3084 Perror0_exit("configinfo: SIOCGLIFMETRIC");
3085 } else {
3086 if (lifr.lifr_metric)
3087 (void) printf(" metric %d ", lifr.lifr_metric);
3088 }
3089 if (((flags & (IFF_VIRTUAL|IFF_LOOPBACK)) != IFF_VIRTUAL) &&
3090 ioctl(s, SIOCGLIFMTU, (caddr_t)&lifr) >= 0)
3091 (void) printf(" mtu %u", lifr.lifr_mtu);
3092
3093 /* Index only applies to the zeroth interface */
3094 if (lifnum(name) == 0) {
3095 if (ioctl(s, SIOCGLIFINDEX, (caddr_t)&lifr) >= 0)
3096 (void) printf(" index %d", lifr.lifr_index);
3097 }
3098
3099 if (ioctl(s, SIOCGLIFUSESRC, (caddr_t)&lifr) == 0) {
3100 if (lifr.lifr_index != 0) {
3101 if (if_indextoname(lifr.lifr_index,
3102 if_usesrc_name) != NULL) {
3103 (void) printf(" usesrc %s", if_usesrc_name);
3104 }
3105 }
3106 }
3107
3108 if (p != NULL) {
3109 (*p->af_configinfo)(1, flags);
3110 } else {
3111 for (p = afs; p->af_name; p++) {
3112 (void) close(s);
3113 s = socket(SOCKET_AF(p->af_af), SOCK_DGRAM, 0);
3114 /* set global af for use in p->af_configinfo */
3115 af = p->af_af;
3116 if (s == -1) {
3117 Perror0_exit("socket");
3118 }
3119 (*p->af_configinfo)(0, flags);
3120 }
3121 }
3122
3123 (void) putchar('\n');
3124 return (0);
3125 }
3126
3127 static void
3128 print_tsec(iptun_params_t *params)
3129 {
3130 ipsec_req_t *ipsr;
3131
3132 (void) printf("\ttunnel security settings ");
3133 if (!(params->iptun_param_flags & IPTUN_PARAM_SECINFO)) {
3134 (void) printf("--> use 'ipsecconf -ln -i %s'", name);
3135 } else {
3136 ipsr = &params->iptun_param_secinfo;
3137 if (ipsr->ipsr_ah_req & IPSEC_PREF_REQUIRED) {
3138 (void) printf("ah (%s) ",
3139 rparsealg(ipsr->ipsr_auth_alg, IPSEC_PROTO_AH));
3140 }
3141 if (ipsr->ipsr_esp_req & IPSEC_PREF_REQUIRED) {
3142 (void) printf("esp (%s",
3143 rparsealg(ipsr->ipsr_esp_alg, IPSEC_PROTO_ESP));
3144 (void) printf("/%s)",
3145 rparsealg(ipsr->ipsr_esp_auth_alg, IPSEC_PROTO_AH));
3146 }
3147 }
3148 (void) printf("\n");
3149 }
3150
3151 static void
3152 tun_status(datalink_id_t linkid)
3153 {
3154 iptun_params_t params;
3155 char propval[DLADM_PROP_VAL_MAX];
3156 char *valptr[1];
3157 uint_t valcnt = 1;
3158 boolean_t tabbed = _B_FALSE;
3159
3160 params.iptun_param_linkid = linkid;
3161
3162 /* If dladm_iptun_getparams() fails, assume we are not a tunnel. */
3163 assert(dlh_opened);
3164 if (dladm_iptun_getparams(dlh, &params, DLADM_OPT_ACTIVE) !=
3165 DLADM_STATUS_OK)
3166 return;
3167
3168 switch (params.iptun_param_type) {
3169 case IPTUN_TYPE_IPV4:
3170 case IPTUN_TYPE_6TO4:
3171 (void) printf("\tinet");
3172 break;
3173 case IPTUN_TYPE_IPV6:
3174 (void) printf("\tinet6");
3175 break;
3176 default:
3177 dladmerr_exit(DLADM_STATUS_IPTUNTYPE, name);
3178 break;
3179 }
3180
3181 /*
3182 * There is always a source address. If it hasn't been explicitly
3183 * set, the API will pass back a buffer containing the unspecified
3184 * address.
3185 */
3186 (void) printf(" tunnel src %s ", params.iptun_param_laddr);
3187
3188 if (params.iptun_param_flags & IPTUN_PARAM_RADDR)
3189 (void) printf("tunnel dst %s\n", params.iptun_param_raddr);
3190 else
3191 (void) putchar('\n');
3192
3193 if (params.iptun_param_flags & IPTUN_PARAM_IPSECPOL)
3194 print_tsec(&params);
3195
3196 valptr[0] = propval;
3197 if (dladm_get_linkprop(dlh, linkid, DLADM_PROP_VAL_CURRENT, "hoplimit",
3198 (char **)valptr, &valcnt) == DLADM_STATUS_OK) {
3199 (void) printf("\ttunnel hop limit %s ", propval);
3200 tabbed = _B_TRUE;
3201 }
3202
3203 if (dladm_get_linkprop(dlh, linkid, DLADM_PROP_VAL_CURRENT,
3204 "encaplimit", (char **)valptr, &valcnt) == DLADM_STATUS_OK) {
3205 uint32_t elim;
3206
3207 if (!tabbed) {
3208 (void) putchar('\t');
3209 tabbed = _B_TRUE;
3210 }
3211 elim = strtol(propval, NULL, 10);
3212 if (elim > 0)
3213 (void) printf("tunnel encapsulation limit %s", propval);
3214 else
3215 (void) printf("tunnel encapsulation limit disabled");
3216 }
3217
3218 if (tabbed)
3219 (void) putchar('\n');
3220 }
3221
3222 static void
3223 in_status(int force, uint64_t flags)
3224 {
3225 struct sockaddr_in *sin, *laddr;
3226 struct sockaddr_in netmask = { AF_INET };
3227
3228 if (debug)
3229 (void) printf("in_status(%s) flags 0x%llx\n", name, flags);
3230
3231 /* only print status for IPv4 interfaces */
3232 if (!(flags & IFF_IPV4))
3233 return;
3234
3235 if (!(flags & IFF_NOLOCAL)) {
3236 (void) strncpy(lifr.lifr_name, name, sizeof (lifr.lifr_name));
3237 if (ioctl(s, SIOCGLIFADDR, (caddr_t)&lifr) < 0) {
3238 if (errno == EADDRNOTAVAIL || errno == EAFNOSUPPORT ||
3239 errno == ENXIO) {
3240 if (!force)
3241 return;
3242 (void) memset(&lifr.lifr_addr, 0,
3243 sizeof (lifr.lifr_addr));
3244 } else
3245 Perror0_exit("in_status: SIOCGLIFADDR");
3246 }
3247 sin = (struct sockaddr_in *)&lifr.lifr_addr;
3248 (void) printf("\tinet %s ", inet_ntoa(sin->sin_addr));
3249 laddr = sin;
3250 } else {
3251 (void) printf("\tinet ");
3252 }
3253
3254 (void) strncpy(lifr.lifr_name, name, sizeof (lifr.lifr_name));
3255 if (ioctl(s, SIOCGLIFSUBNET, (caddr_t)&lifr) < 0) {
3256 if (errno == EADDRNOTAVAIL || errno == EAFNOSUPPORT ||
3257 errno == ENXIO) {
3258 if (!force)
3259 return;
3260 (void) memset(&lifr.lifr_addr, 0,
3261 sizeof (lifr.lifr_addr));
3262 } else {
3263 Perror0_exit("in_status: SIOCGLIFSUBNET");
3264 }
3265 }
3266 sin = (struct sockaddr_in *)&lifr.lifr_addr;
3267 if ((flags & IFF_NOLOCAL) ||
3268 sin->sin_addr.s_addr != laddr->sin_addr.s_addr) {
3269 (void) printf("subnet %s/%d ", inet_ntoa(sin->sin_addr),
3270 lifr.lifr_addrlen);
3271 }
3272 if (sin->sin_family != AF_INET) {
3273 (void) printf("Wrong family: %d\n", sin->sin_family);
3274 }
3275
3276 (void) strncpy(lifr.lifr_name, name, sizeof (lifr.lifr_name));
3277 if (ioctl(s, SIOCGLIFNETMASK, (caddr_t)&lifr) < 0) {
3278 if (errno != EADDRNOTAVAIL)
3279 Perror0_exit("in_status: SIOCGLIFNETMASK");
3280 (void) memset(&lifr.lifr_addr, 0, sizeof (lifr.lifr_addr));
3281 } else
3282 netmask.sin_addr =
3283 ((struct sockaddr_in *)&lifr.lifr_addr)->sin_addr;
3284 if (flags & IFF_POINTOPOINT) {
3285 (void) strncpy(lifr.lifr_name, name, sizeof (lifr.lifr_name));
3286 if (ioctl(s, SIOCGLIFDSTADDR, (caddr_t)&lifr) < 0) {
3287 if (errno == EADDRNOTAVAIL)
3288 (void) memset(&lifr.lifr_addr, 0,
3289 sizeof (lifr.lifr_addr));
3290 else
3291 Perror0_exit("in_status: SIOCGLIFDSTADDR");
3292 }
3293 sin = (struct sockaddr_in *)&lifr.lifr_dstaddr;
3294 (void) printf("--> %s ", inet_ntoa(sin->sin_addr));
3295 }
3296 (void) printf("netmask %x ", ntohl(netmask.sin_addr.s_addr));
3297 if (flags & IFF_BROADCAST) {
3298 (void) strncpy(lifr.lifr_name, name, sizeof (lifr.lifr_name));
3299 if (ioctl(s, SIOCGLIFBRDADDR, (caddr_t)&lifr) < 0) {
3300 if (errno == EADDRNOTAVAIL)
3301 (void) memset(&lifr.lifr_addr, 0,
3302 sizeof (lifr.lifr_addr));
3303 else
3304 Perror0_exit("in_status: SIOCGLIFBRDADDR");
3305 }
3306 sin = (struct sockaddr_in *)&lifr.lifr_addr;
3307 if (sin->sin_addr.s_addr != 0) {
3308 (void) printf("broadcast %s",
3309 inet_ntoa(sin->sin_addr));
3310 }
3311 }
3312 /* If there is a groupname, print it for only the physical interface */
3313 if (strchr(name, ':') == NULL) {
3314 if (ioctl(s, SIOCGLIFGROUPNAME, &lifr) >= 0 &&
3315 lifr.lifr_groupname[0] != '\0') {
3316 (void) printf("\n\tgroupname %s", lifr.lifr_groupname);
3317 }
3318 }
3319 (void) putchar('\n');
3320 }
3321
3322 static void
3323 in6_status(int force, uint64_t flags)
3324 {
3325 char abuf[INET6_ADDRSTRLEN];
3326 struct sockaddr_in6 *sin6, *laddr6;
3327
3328 if (debug)
3329 (void) printf("in6_status(%s) flags 0x%llx\n", name, flags);
3330
3331 if (!(flags & IFF_IPV6))
3332 return;
3333
3334 if (!(flags & IFF_NOLOCAL)) {
3335 (void) strncpy(lifr.lifr_name, name, sizeof (lifr.lifr_name));
3336 if (ioctl(s, SIOCGLIFADDR, (caddr_t)&lifr) < 0) {
3337 if (errno == EADDRNOTAVAIL || errno == EAFNOSUPPORT ||
3338 errno == ENXIO) {
3339 if (!force)
3340 return;
3341 (void) memset(&lifr.lifr_addr, 0,
3342 sizeof (lifr.lifr_addr));
3343 } else
3344 Perror0_exit("in_status6: SIOCGLIFADDR");
3345 }
3346 sin6 = (struct sockaddr_in6 *)&lifr.lifr_addr;
3347 (void) printf("\tinet6 %s/%d ",
3348 inet_ntop(AF_INET6, (void *)&sin6->sin6_addr,
3349 abuf, sizeof (abuf)),
3350 lifr.lifr_addrlen);
3351 laddr6 = sin6;
3352 } else {
3353 (void) printf("\tinet6 ");
3354 }
3355 (void) strncpy(lifr.lifr_name, name, sizeof (lifr.lifr_name));
3356 if (ioctl(s, SIOCGLIFSUBNET, (caddr_t)&lifr) < 0) {
3357 if (errno == EADDRNOTAVAIL || errno == EAFNOSUPPORT ||
3358 errno == ENXIO) {
3359 if (!force)
3360 return;
3361 (void) memset(&lifr.lifr_addr, 0,
3362 sizeof (lifr.lifr_addr));
3363 } else
3364 Perror0_exit("in_status6: SIOCGLIFSUBNET");
3365 }
3366 sin6 = (struct sockaddr_in6 *)&lifr.lifr_addr;
3367 if ((flags & IFF_NOLOCAL) ||
3368 !IN6_ARE_ADDR_EQUAL(&sin6->sin6_addr, &laddr6->sin6_addr)) {
3369 (void) printf("subnet %s/%d ",
3370 inet_ntop(AF_INET6, (void *)&sin6->sin6_addr,
3371 abuf, sizeof (abuf)),
3372 lifr.lifr_addrlen);
3373 }
3374 if (sin6->sin6_family != AF_INET6) {
3375 (void) printf("Wrong family: %d\n", sin6->sin6_family);
3376 }
3377 if (flags & IFF_POINTOPOINT) {
3378 (void) strncpy(lifr.lifr_name, name, sizeof (lifr.lifr_name));
3379 if (ioctl(s, SIOCGLIFDSTADDR, (caddr_t)&lifr) < 0) {
3380 if (errno == EADDRNOTAVAIL)
3381 (void) memset(&lifr.lifr_addr, 0,
3382 sizeof (lifr.lifr_addr));
3383 else
3384 Perror0_exit("in_status6: SIOCGLIFDSTADDR");
3385 }
3386 sin6 = (struct sockaddr_in6 *)&lifr.lifr_dstaddr;
3387 (void) printf("--> %s ",
3388 inet_ntop(AF_INET6, (void *)&sin6->sin6_addr,
3389 abuf, sizeof (abuf)));
3390 }
3391 if (verbose) {
3392 (void) putchar('\n');
3393 (void) putchar('\t');
3394 (void) strncpy(lifr.lifr_name, name, sizeof (lifr.lifr_name));
3395 if (ioctl(s, SIOCGLIFTOKEN, (caddr_t)&lifr) < 0) {
3396 if (errno == EADDRNOTAVAIL || errno == EINVAL)
3397 (void) memset(&lifr.lifr_addr, 0,
3398 sizeof (lifr.lifr_addr));
3399 else
3400 Perror0_exit("in_status6: SIOCGLIFTOKEN");
3401 } else {
3402 sin6 = (struct sockaddr_in6 *)&lifr.lifr_addr;
3403 (void) printf("token %s/%d ",
3404 inet_ntop(AF_INET6, (void *)&sin6->sin6_addr,
3405 abuf, sizeof (abuf)),
3406 lifr.lifr_addrlen);
3407 }
3408 if (ioctl(s, SIOCGLIFLNKINFO, (caddr_t)&lifr) < 0) {
3409 if (errno != EINVAL) {
3410 Perror0_exit("in_status6: SIOCGLIFLNKINFO");
3411 }
3412 } else {
3413 (void) printf("maxhops %u, reachtime %u ms, "
3414 "reachretrans %u ms, maxmtu %u ",
3415 lifr.lifr_ifinfo.lir_maxhops,
3416 lifr.lifr_ifinfo.lir_reachtime,
3417 lifr.lifr_ifinfo.lir_reachretrans,
3418 lifr.lifr_ifinfo.lir_maxmtu);
3419 }
3420 }
3421 /* If there is a groupname, print it for only the physical interface */
3422 if (strchr(name, ':') == NULL) {
3423 if (ioctl(s, SIOCGLIFGROUPNAME, &lifr) >= 0 &&
3424 lifr.lifr_groupname[0] != '\0') {
3425 (void) printf("\n\tgroupname %s", lifr.lifr_groupname);
3426 }
3427 }
3428 (void) putchar('\n');
3429 }
3430
3431 static void
3432 in_configinfo(int force, uint64_t flags)
3433 {
3434 struct sockaddr_in *sin, *laddr;
3435 struct sockaddr_in netmask = { AF_INET };
3436
3437 if (debug)
3438 (void) printf("in_configinfo(%s) flags 0x%llx\n", name, flags);
3439
3440 /* only configinfo info for IPv4 interfaces */
3441 if (!(flags & IFF_IPV4))
3442 return;
3443
3444 if (!(flags & IFF_NOLOCAL)) {
3445 (void) strncpy(lifr.lifr_name, name, sizeof (lifr.lifr_name));
3446 if (ioctl(s, SIOCGLIFADDR, (caddr_t)&lifr) < 0) {
3447 if (errno == EADDRNOTAVAIL || errno == EAFNOSUPPORT ||
3448 errno == ENXIO) {
3449 if (!force)
3450 return;
3451 (void) memset(&lifr.lifr_addr, 0,
3452 sizeof (lifr.lifr_addr));
3453 } else
3454 Perror0_exit("in_configinfo: SIOCGLIFADDR");
3455 }
3456 sin = (struct sockaddr_in *)&lifr.lifr_addr;
3457 (void) printf(" set %s ", inet_ntoa(sin->sin_addr));
3458 laddr = sin;
3459 }
3460
3461 (void) strncpy(lifr.lifr_name, name, sizeof (lifr.lifr_name));
3462 if (ioctl(s, SIOCGLIFSUBNET, (caddr_t)&lifr) < 0) {
3463 if (errno == EADDRNOTAVAIL || errno == EAFNOSUPPORT ||
3464 errno == ENXIO) {
3465 if (!force)
3466 return;
3467 (void) memset(&lifr.lifr_addr, 0,
3468 sizeof (lifr.lifr_addr));
3469 } else {
3470 Perror0_exit("in_configinfo: SIOCGLIFSUBNET");
3471 }
3472 }
3473 sin = (struct sockaddr_in *)&lifr.lifr_addr;
3474
3475 if ((flags & IFF_NOLOCAL) ||
3476 sin->sin_addr.s_addr != laddr->sin_addr.s_addr) {
3477 (void) printf(" subnet %s/%d ", inet_ntoa(sin->sin_addr),
3478 lifr.lifr_addrlen);
3479 }
3480 (void) strncpy(lifr.lifr_name, name, sizeof (lifr.lifr_name));
3481 if (ioctl(s, SIOCGLIFNETMASK, (caddr_t)&lifr) < 0) {
3482 if (errno != EADDRNOTAVAIL)
3483 Perror0_exit("in_configinfo: SIOCGLIFNETMASK");
3484 (void) memset(&lifr.lifr_addr, 0, sizeof (lifr.lifr_addr));
3485 } else
3486 netmask.sin_addr =
3487 ((struct sockaddr_in *)&lifr.lifr_addr)->sin_addr;
3488 if (flags & IFF_POINTOPOINT) {
3489 (void) strncpy(lifr.lifr_name, name, sizeof (lifr.lifr_name));
3490 if (ioctl(s, SIOCGLIFDSTADDR, (caddr_t)&lifr) < 0) {
3491 if (errno == EADDRNOTAVAIL)
3492 (void) memset(&lifr.lifr_addr, 0,
3493 sizeof (lifr.lifr_addr));
3494 else
3495 Perror0_exit("in_configinfo: SIOCGLIFDSTADDR");
3496 }
3497 sin = (struct sockaddr_in *)&lifr.lifr_dstaddr;
3498 (void) printf(" destination %s ", inet_ntoa(sin->sin_addr));
3499 }
3500 (void) printf(" netmask 0x%x ", ntohl(netmask.sin_addr.s_addr));
3501 if (flags & IFF_BROADCAST) {
3502 (void) strncpy(lifr.lifr_name, name, sizeof (lifr.lifr_name));
3503 if (ioctl(s, SIOCGLIFBRDADDR, (caddr_t)&lifr) < 0) {
3504 if (errno == EADDRNOTAVAIL)
3505 (void) memset(&lifr.lifr_addr, 0,
3506 sizeof (lifr.lifr_addr));
3507 else
3508 Perror0_exit("in_configinfo: SIOCGLIFBRDADDR");
3509 }
3510 sin = (struct sockaddr_in *)&lifr.lifr_addr;
3511 if (sin->sin_addr.s_addr != 0) {
3512 (void) printf(" broadcast %s ",
3513 inet_ntoa(sin->sin_addr));
3514 }
3515 }
3516
3517 /* If there is a groupname, print it for only the zeroth interface */
3518 if (lifnum(name) == 0) {
3519 if (ioctl(s, SIOCGLIFGROUPNAME, &lifr) >= 0 &&
3520 lifr.lifr_groupname[0] != '\0') {
3521 (void) printf(" group %s ", lifr.lifr_groupname);
3522 }
3523 }
3524
3525 /* Print flags to configure */
3526 print_config_flags(AF_INET, flags);
3527 }
3528
3529 static void
3530 in6_configinfo(int force, uint64_t flags)
3531 {
3532 char abuf[INET6_ADDRSTRLEN];
3533 struct sockaddr_in6 *sin6, *laddr6;
3534
3535 if (debug)
3536 (void) printf("in6_configinfo(%s) flags 0x%llx\n", name,
3537 flags);
3538
3539 if (!(flags & IFF_IPV6))
3540 return;
3541
3542 if (!(flags & IFF_NOLOCAL)) {
3543 (void) strncpy(lifr.lifr_name, name, sizeof (lifr.lifr_name));
3544 if (ioctl(s, SIOCGLIFADDR, (caddr_t)&lifr) < 0) {
3545 if (errno == EADDRNOTAVAIL || errno == EAFNOSUPPORT ||
3546 errno == ENXIO) {
3547 if (!force)
3548 return;
3549 (void) memset(&lifr.lifr_addr, 0,
3550 sizeof (lifr.lifr_addr));
3551 } else
3552 Perror0_exit("in6_configinfo: SIOCGLIFADDR");
3553 }
3554 sin6 = (struct sockaddr_in6 *)&lifr.lifr_addr;
3555 (void) printf(" set %s/%d ",
3556 inet_ntop(AF_INET6, &sin6->sin6_addr, abuf, sizeof (abuf)),
3557 lifr.lifr_addrlen);
3558 laddr6 = sin6;
3559 }
3560 (void) strncpy(lifr.lifr_name, name, sizeof (lifr.lifr_name));
3561 if (ioctl(s, SIOCGLIFSUBNET, (caddr_t)&lifr) < 0) {
3562 if (errno == EADDRNOTAVAIL || errno == EAFNOSUPPORT ||
3563 errno == ENXIO) {
3564 if (!force)
3565 return;
3566 (void) memset(&lifr.lifr_addr, 0,
3567 sizeof (lifr.lifr_addr));
3568 } else
3569 Perror0_exit("in6_configinfo: SIOCGLIFSUBNET");
3570 }
3571 sin6 = (struct sockaddr_in6 *)&lifr.lifr_addr;
3572 if ((flags & IFF_NOLOCAL) ||
3573 !IN6_ARE_ADDR_EQUAL(&sin6->sin6_addr, &laddr6->sin6_addr)) {
3574 (void) printf(" subnet %s/%d ",
3575 inet_ntop(AF_INET6, (void *)&sin6->sin6_addr,
3576 abuf, sizeof (abuf)),
3577 lifr.lifr_addrlen);
3578 }
3579
3580 if (flags & IFF_POINTOPOINT) {
3581 (void) strncpy(lifr.lifr_name, name, sizeof (lifr.lifr_name));
3582 if (ioctl(s, SIOCGLIFDSTADDR, (caddr_t)&lifr) < 0) {
3583 if (errno == EADDRNOTAVAIL)
3584 (void) memset(&lifr.lifr_addr, 0,
3585 sizeof (lifr.lifr_addr));
3586 else
3587 Perror0_exit("in6_configinfo: SIOCGLIFDSTADDR");
3588 }
3589 sin6 = (struct sockaddr_in6 *)&lifr.lifr_dstaddr;
3590 (void) printf(" destination %s ",
3591 inet_ntop(AF_INET6, (void *)&sin6->sin6_addr,
3592 abuf, sizeof (abuf)));
3593 }
3594
3595 (void) strncpy(lifr.lifr_name, name, sizeof (lifr.lifr_name));
3596 if (ioctl(s, SIOCGLIFTOKEN, (caddr_t)&lifr) < 0) {
3597 if (errno == EADDRNOTAVAIL || errno == EINVAL)
3598 (void) memset(&lifr.lifr_addr, 0,
3599 sizeof (lifr.lifr_addr));
3600 else
3601 Perror0_exit("in6_configinfo: SIOCGLIFTOKEN");
3602 } else {
3603 sin6 = (struct sockaddr_in6 *)&lifr.lifr_addr;
3604 (void) printf(" token %s/%d ",
3605 inet_ntop(AF_INET6, (void *)&sin6->sin6_addr,
3606 abuf, sizeof (abuf)),
3607 lifr.lifr_addrlen);
3608 }
3609
3610 /* If there is a groupname, print it for only the zeroth interface */
3611 if (lifnum(name) == 0) {
3612 if (ioctl(s, SIOCGLIFGROUPNAME, &lifr) >= 0 &&
3613 lifr.lifr_groupname[0] != '\0') {
3614 (void) printf(" group %s ", lifr.lifr_groupname);
3615 }
3616 }
3617
3618 /* Print flags to configure */
3619 print_config_flags(AF_INET6, flags);
3620 }
3621
3622 /*
3623 * If this is a physical interface then remove it.
3624 * If it is a logical interface name use SIOCLIFREMOVEIF to
3625 * remove it. In both cases fail if it doesn't exist.
3626 */
3627 /* ARGSUSED */
3628 static int
3629 inetunplumb(char *arg, int64_t param)
3630 {
3631 ipadm_status_t istatus;
3632
3633 istatus = ipadm_delete_if(iph, name, afp->af_af, IPADM_OPT_ACTIVE);
3634 if (istatus != IPADM_SUCCESS) {
3635 (void) fprintf(stderr, "ifconfig: cannot unplumb %s: %s\n",
3636 name, ipadm_status2str(istatus));
3637 exit(1);
3638 }
3639
3640 return (0);
3641 }
3642
3643 /*
3644 * Create the interface in `name', using ipadm_create_if(). If `name' is a
3645 * logical interface or loopback interface, ipadm_create_if() uses
3646 * SIOCLIFADDIF to create it.
3647 */
3648 /* ARGSUSED */
3649 static int
3650 inetplumb(char *arg, int64_t param)
3651 {
3652 ipadm_status_t istatus;
3653
3654 istatus = ipadm_create_if(iph, name, afp->af_af, IPADM_OPT_ACTIVE);
3655 if (istatus != IPADM_SUCCESS) {
3656 (void) fprintf(stderr, "ifconfig: cannot plumb %s: %s\n",
3657 name, ipadm_status2str(istatus));
3658 if (istatus != IPADM_IF_EXISTS)
3659 exit(1);
3660 }
3661 return (0);
3662 }
3663
3664 /* ARGSUSED */
3665 static int
3666 inetipmp(char *arg, int64_t param)
3667 {
3668 int retval;
3669
3670 /*
3671 * Treat e.g. "ifconfig ipmp0:2 ipmp" as "ifconfig ipmp0:2 plumb".
3672 * Otherwise, try to create the requested IPMP interface.
3673 */
3674 if (strchr(name, ':') != NULL)
3675 retval = inetplumb(arg, param);
3676 else
3677 retval = create_ipmp(name, afp->af_af, name, _B_FALSE);
3678
3679 /*
3680 * We'd return -1, but foreachinterface() doesn't propagate the error
3681 * into the exit status, so we're forced to explicitly exit().
3682 */
3683 if (retval == -1)
3684 exit(1);
3685 return (0);
3686 }
3687
3688 /*
3689 * Create an IPMP group `grname' with address family `af'. If `ifname' is
3690 * non-NULL, it specifies the interface name to use. Otherwise, use the name
3691 * ipmpN, where N corresponds to the lowest available integer. If `implicit'
3692 * is set, then the group is being created as a side-effect of placing an
3693 * underlying interface in a group. Also start in.mpathd if necessary.
3694 */
3695 static int
3696 create_ipmp(const char *grname, int af, const char *ifname, boolean_t implicit)
3697 {
3698 static int ipmp_daemon_started;
3699 uint32_t flags = IPADM_OPT_IPMP|IPADM_OPT_ACTIVE;
3700 ipadm_status_t istatus;
3701
3702 if (debug) {
3703 (void) printf("create_ipmp: ifname %s grname %s af %d\n",
3704 ifname != NULL ? ifname : "NULL", grname, af);
3705 }
3706
3707 /*
3708 * ipadm_create_if() creates the IPMP interface and fills in the
3709 * ppa in lifr.lifr_name, if `ifname'="ipmp".
3710 */
3711 (void) strlcpy(lifr.lifr_name, (ifname ? ifname : "ipmp"),
3712 sizeof (lifr.lifr_name));
3713 if (ifname == NULL)
3714 flags |= IPADM_OPT_GENPPA;
3715 istatus = ipadm_create_if(iph, lifr.lifr_name, af, flags);
3716 if (istatus != IPADM_SUCCESS) {
3717 (void) fprintf(stderr, "ifconfig: cannot create IPMP interface "
3718 "%s: %s\n", grname, ipadm_status2str(istatus));
3719 return (-1);
3720 }
3721
3722 /*
3723 * To preserve backward-compatibility, always bring up the link-local
3724 * address for implicitly-created IPv6 IPMP interfaces.
3725 */
3726 if (implicit && af == AF_INET6) {
3727 if (ioctl(s6, SIOCGLIFFLAGS, &lifr) == 0) {
3728 lifr.lifr_flags |= IFF_UP;
3729 (void) ioctl(s6, SIOCSLIFFLAGS, &lifr);
3730 }
3731 }
3732
3733 /*
3734 * If the caller requested a different group name, issue a
3735 * SIOCSLIFGROUPNAME on the new IPMP interface.
3736 */
3737 if (strcmp(lifr.lifr_name, grname) != 0) {
3738 (void) strlcpy(lifr.lifr_groupname, grname, LIFGRNAMSIZ);
3739 if (ioctl(s, SIOCSLIFGROUPNAME, &lifr) == -1) {
3740 Perror0("SIOCSLIFGROUPNAME");
3741 return (-1);
3742 }
3743 }
3744
3745 /*
3746 * If we haven't done so yet, ensure in.mpathd is started.
3747 */
3748 if (ipmp_daemon_started++ == 0)
3749 start_ipmp_daemon();
3750
3751 return (0);
3752 }
3753
3754 /*
3755 * Start in.mpathd if it's not already running.
3756 */
3757 static void
3758 start_ipmp_daemon(void)
3759 {
3760 int retval;
3761 ipmp_handle_t ipmp_handle;
3762
3763 /*
3764 * Ping in.mpathd to see if it's running already.
3765 */
3766 if ((retval = ipmp_open(&ipmp_handle)) != IPMP_SUCCESS) {
3767 (void) fprintf(stderr, "ifconfig: cannot create IPMP handle: "
3768 "%s\n", ipmp_errmsg(retval));
3769 return;
3770 }
3771
3772 retval = ipmp_ping_daemon(ipmp_handle);
3773 ipmp_close(ipmp_handle);
3774
3775 switch (retval) {
3776 case IPMP_ENOMPATHD:
3777 break;
3778 case IPMP_SUCCESS:
3779 return;
3780 default:
3781 (void) fprintf(stderr, "ifconfig: cannot ping in.mpathd: %s\n",
3782 ipmp_errmsg(retval));
3783 break;
3784 }
3785
3786 /*
3787 * Start in.mpathd. Note that in.mpathd will handle multiple
3788 * incarnations (ipmp_ping_daemon() is just an optimization) so we
3789 * don't need to worry about racing with another ifconfig process.
3790 */
3791 switch (fork()) {
3792 case -1:
3793 Perror0_exit("start_ipmp_daemon: fork");
3794 /* NOTREACHED */
3795 case 0:
3796 (void) execl(MPATHD_PATH, MPATHD_PATH, NULL);
3797 _exit(1);
3798 /* NOTREACHED */
3799 default:
3800 break;
3801 }
3802 }
3803
3804 /*
3805 * Bring the address named by `ifaddrp' up or down. Doesn't trust any mutable
3806 * values in ia_flags since they may be stale.
3807 */
3808 static boolean_t
3809 ifaddr_op(ifaddrlistx_t *ifaddrp, boolean_t up)
3810 {
3811 struct lifreq lifrl; /* Local lifreq struct */
3812 int fd = (ifaddrp->ia_flags & IFF_IPV4) ? s4 : s6;
3813
3814 (void) memset(&lifrl, 0, sizeof (lifrl));
3815 (void) strlcpy(lifrl.lifr_name, ifaddrp->ia_name, LIFNAMSIZ);
3816 if (ioctl(fd, SIOCGLIFFLAGS, &lifrl) == -1)
3817 return (_B_FALSE);
3818
3819 if (up)
3820 lifrl.lifr_flags |= IFF_UP;
3821 else
3822 lifrl.lifr_flags &= ~IFF_UP;
3823
3824 if (ioctl(fd, SIOCSLIFFLAGS, &lifrl) == -1)
3825 return (_B_FALSE);
3826
3827 /*
3828 * If we're trying to bring the address down, ensure that DAD activity
3829 * (observable by IFF_DUPLICATE) has also been stopped.
3830 */
3831 if (!up && ioctl(fd, SIOCGLIFFLAGS, &lifrl) != -1 &&
3832 lifrl.lifr_flags & IFF_DUPLICATE) {
3833 if (ioctl(fd, SIOCGLIFADDR, &lifrl) == -1 ||
3834 ioctl(fd, SIOCSLIFADDR, &lifrl) == -1) {
3835 return (_B_FALSE);
3836 }
3837 }
3838 return (_B_TRUE);
3839 }
3840
3841 static boolean_t
3842 ifaddr_up(ifaddrlistx_t *ifaddrp)
3843 {
3844 return (ifaddr_op(ifaddrp, _B_TRUE));
3845 }
3846
3847 static boolean_t
3848 ifaddr_down(ifaddrlistx_t *ifaddrp)
3849 {
3850 return (ifaddr_op(ifaddrp, _B_FALSE));
3851 }
3852
3853 /*
3854 * Open the global libdladm handle "dlh" if it isn't already opened. The
3855 * caller may optionally supply a link name to obtain its linkid. If a link
3856 * of a specific class or classes is required, reqclass specifies the class
3857 * mask.
3858 */
3859 static dladm_status_t
3860 ifconfig_dladm_open(const char *name, datalink_class_t reqclass,
3861 datalink_id_t *linkid)
3862 {
3863 dladm_status_t status = DLADM_STATUS_OK;
3864 datalink_class_t class;
3865
3866 if (!dlh_opened) {
3867 if ((status = dladm_open(&dlh)) != DLADM_STATUS_OK)
3868 return (status);
3869 dlh_opened = _B_TRUE;
3870 }
3871 if (name != NULL) {
3872 status = dladm_name2info(dlh, name, linkid, NULL, &class, NULL);
3873 if (status == DLADM_STATUS_OK) {
3874 if (!(class & reqclass))
3875 status = DLADM_STATUS_LINKINVAL;
3876 }
3877 }
3878 return (status);
3879 }
3880
3881 /*
3882 * This function checks if we can use libipadm API's. We will only
3883 * call libipadm functions for non-IPMP interfaces. This check is
3884 * temporary until libipadm supports IPMP interfaces.
3885 */
3886 static boolean_t
3887 ifconfig_use_libipadm(int s, const char *lifname)
3888 {
3889 struct lifreq lifr1;
3890
3891 (void) strlcpy(lifr1.lifr_name, lifname, sizeof (lifr1.lifr_name));
3892 if (ioctl(s, SIOCGLIFGROUPNAME, (caddr_t)&lifr1) < 0) {
3893 (void) strncpy(lifr.lifr_name, lifname,
3894 sizeof (lifr.lifr_name));
3895 Perror0_exit("error");
3896 }
3897
3898 return (lifr1.lifr_groupname[0] == '\0');
3899 }
3900
3901 static void
3902 ipadmerr_exit(ipadm_status_t status, const char *str)
3903 {
3904 (void) fprintf(stderr, "ifconfig: %s: %s\n", str,
3905 ipadm_status2str(status));
3906 exit(1);
3907 }
3908
3909 static void
3910 dladmerr_exit(dladm_status_t status, const char *str)
3911 {
3912 char errstr[DLADM_STRSIZE];
3913
3914 (void) fprintf(stderr, "%s: %s\n", str,
3915 dladm_status2str(status, errstr));
3916 exit(1);
3917 }
3918
3919 void
3920 Perror0(const char *cmd)
3921 {
3922 Perror2(cmd, lifr.lifr_name);
3923 }
3924
3925 void
3926 Perror0_exit(const char *cmd)
3927 {
3928 Perror0(cmd);
3929 exit(1);
3930 }
3931
3932 void
3933 Perror2(const char *cmd, const char *str)
3934 {
3935 int error = errno;
3936
3937 (void) fprintf(stderr, "ifconfig: %s: ", cmd);
3938
3939 switch (error) {
3940 case ENXIO:
3941 (void) fprintf(stderr, "%s: no such interface\n", str);
3942 break;
3943 case EPERM:
3944 (void) fprintf(stderr, "%s: permission denied\n", str);
3945 break;
3946 case EEXIST:
3947 (void) fprintf(stderr, "%s: already exists\n", str);
3948 break;
3949 case ENAMETOOLONG:
3950 (void) fprintf(stderr, "%s: interface name too long\n", str);
3951 break;
3952 case ERANGE:
3953 (void) fprintf(stderr, "%s: logical interface id is outside "
3954 "allowed range\n", str);
3955 break;
3956 default:
3957 errno = error;
3958 perror(str);
3959 }
3960 }
3961
3962 /*
3963 * Print out error message (Perror2()) and exit
3964 */
3965 void
3966 Perror2_exit(const char *cmd, const char *str)
3967 {
3968 Perror2(cmd, str);
3969 exit(1);
3970 /* NOTREACHED */
3971 }
3972
3973 void
3974 Perrdlpi(const char *cmd, const char *linkname, int err)
3975 {
3976 (void) fprintf(stderr, "ifconfig: %s \"%s\": %s\n", cmd,
3977 linkname, dlpi_strerror(err));
3978 }
3979
3980 /*
3981 * Print out error message (Perrdlpi()) and exit
3982 */
3983 void
3984 Perrdlpi_exit(const char *cmd, const char *linkname, int err)
3985 {
3986 Perrdlpi(cmd, linkname, err);
3987 exit(1);
3988 }
3989
3990 /*
3991 * If the last argument is non-NULL allow a <addr>/<n> syntax and
3992 * pass out <n> in *plenp.
3993 * If <n> doesn't parse return BAD_ADDR as *plenp.
3994 * If no /<n> is present return NO_PREFIX as *plenp.
3995 */
3996 static void
3997 in_getaddr(char *s, struct sockaddr *saddr, int *plenp)
3998 {
3999 /* LINTED: alignment */
4000 struct sockaddr_in *sin = (struct sockaddr_in *)saddr;
4001 struct hostent *hp;
4002 struct netent *np;
4003 char str[BUFSIZ];
4004 int error_num;
4005
4006 (void) strncpy(str, s, sizeof (str));
4007
4008 /*
4009 * Look for '/'<n> is plenp
4010 */
4011 if (plenp != NULL) {
4012 char *cp;
4013
4014 *plenp = in_getprefixlen(str, _B_TRUE, IP_ABITS);
4015 if (*plenp == BAD_ADDR)
4016 return;
4017 cp = strchr(str, '/');
4018 if (cp != NULL)
4019 *cp = '\0';
4020 } else if (strchr(str, '/') != NULL) {
4021 (void) fprintf(stderr, "ifconfig: %s: unexpected '/'\n", str);
4022 exit(1);
4023 }
4024
4025 (void) memset(sin, 0, sizeof (*sin));
4026
4027 /*
4028 * Try to catch attempts to set the broadcast address to all 1's.
4029 */
4030 if (strcmp(str, "255.255.255.255") == 0 ||
4031 (strtoul(str, (char **)NULL, 0) == 0xffffffffUL)) {
4032 sin->sin_family = AF_INET;
4033 sin->sin_addr.s_addr = 0xffffffff;
4034 return;
4035 }
4036
4037 hp = getipnodebyname(str, AF_INET, 0, &error_num);
4038 if (hp) {
4039 sin->sin_family = hp->h_addrtype;
4040 (void) memcpy(&sin->sin_addr, hp->h_addr, hp->h_length);
4041 freehostent(hp);
4042 return;
4043 }
4044 np = getnetbyname(str);
4045 if (np) {
4046 sin->sin_family = np->n_addrtype;
4047 sin->sin_addr = inet_makeaddr(np->n_net, INADDR_ANY);
4048 return;
4049 }
4050 if (error_num == TRY_AGAIN) {
4051 (void) fprintf(stderr, "ifconfig: %s: bad address "
4052 "(try again later)\n", s);
4053 } else {
4054 (void) fprintf(stderr, "ifconfig: %s: bad address\n", s);
4055 }
4056 exit(1);
4057 }
4058
4059 /*
4060 * If the last argument is non-NULL allow a <addr>/<n> syntax and
4061 * pass out <n> in *plenp.
4062 * If <n> doesn't parse return BAD_ADDR as *plenp.
4063 * If no /<n> is present return NO_PREFIX as *plenp.
4064 */
4065 static void
4066 in6_getaddr(char *s, struct sockaddr *saddr, int *plenp)
4067 {
4068 /* LINTED: alignment */
4069 struct sockaddr_in6 *sin6 = (struct sockaddr_in6 *)saddr;
4070 struct hostent *hp;
4071 char str[BUFSIZ];
4072 int error_num;
4073
4074 (void) strncpy(str, s, sizeof (str));
4075
4076 /*
4077 * Look for '/'<n> is plenp
4078 */
4079 if (plenp != NULL) {
4080 char *cp;
4081
4082 *plenp = in_getprefixlen(str, _B_TRUE, IPV6_ABITS);
4083 if (*plenp == BAD_ADDR)
4084 return;
4085 cp = strchr(str, '/');
4086 if (cp != NULL)
4087 *cp = '\0';
4088 } else if (strchr(str, '/') != NULL) {
4089 (void) fprintf(stderr, "ifconfig: %s: unexpected '/'\n", str);
4090 exit(1);
4091 }
4092
4093 (void) memset(sin6, 0, sizeof (*sin6));
4094
4095 hp = getipnodebyname(str, AF_INET6, 0, &error_num);
4096 if (hp) {
4097 sin6->sin6_family = hp->h_addrtype;
4098 (void) memcpy(&sin6->sin6_addr, hp->h_addr, hp->h_length);
4099 freehostent(hp);
4100 return;
4101 }
4102 if (error_num == TRY_AGAIN) {
4103 (void) fprintf(stderr, "ifconfig: %s: bad address "
4104 "(try again later)\n", s);
4105 } else {
4106 (void) fprintf(stderr, "ifconfig: %s: bad address\n", s);
4107 }
4108 exit(1);
4109 }
4110
4111 /*
4112 * If "slash" is zero this parses the whole string as
4113 * an integer. With "slash" non zero it parses the tail part as an integer.
4114 *
4115 * If it is not a valid integer this returns BAD_ADDR.
4116 * If there is /<n> present this returns NO_PREFIX.
4117 */
4118 static int
4119 in_getprefixlen(char *addr, boolean_t slash, int max_plen)
4120 {
4121 int prefixlen;
4122 char *str, *end;
4123
4124 if (slash) {
4125 str = strchr(addr, '/');
4126 if (str == NULL)
4127 return (NO_PREFIX);
4128 str++;
4129 } else
4130 str = addr;
4131
4132 prefixlen = strtol(str, &end, 10);
4133 if (prefixlen < 0)
4134 return (BAD_ADDR);
4135 if (str == end)
4136 return (BAD_ADDR);
4137 if (max_plen != 0 && max_plen < prefixlen)
4138 return (BAD_ADDR);
4139 return (prefixlen);
4140 }
4141
4142 /*
4143 * Convert a prefix length to a mask.
4144 * Returns 1 if ok. 0 otherwise.
4145 * Assumes the mask array is zero'ed by the caller.
4146 */
4147 static boolean_t
4148 in_prefixlentomask(int prefixlen, int maxlen, uchar_t *mask)
4149 {
4150 if (prefixlen < 0 || prefixlen > maxlen)
4151 return (0);
4152
4153 while (prefixlen > 0) {
4154 if (prefixlen >= 8) {
4155 *mask++ = 0xFF;
4156 prefixlen -= 8;
4157 continue;
4158 }
4159 *mask |= 1 << (8 - prefixlen);
4160 prefixlen--;
4161 }
4162 return (1);
4163 }
4164
4165 static void
4166 print_flags(uint64_t flags)
4167 {
4168 boolean_t first = _B_TRUE;
4169 int cnt, i;
4170
4171 (void) printf("flags=%llx", flags);
4172 cnt = sizeof (if_flags_tbl) / sizeof (if_flags_t);
4173 for (i = 0; i < cnt; i++) {
4174 if (flags & if_flags_tbl[i].iff_value) {
4175 if (first) {
4176 (void) printf("<");
4177 first = _B_FALSE;
4178 } else {
4179 /*
4180 * It has to be here and not with the
4181 * printf below because for the last one,
4182 * we don't want a comma before the ">".
4183 */
4184 (void) printf(",");
4185 }
4186 (void) printf("%s", if_flags_tbl[i].iff_name);
4187 }
4188 }
4189 if (!first)
4190 (void) printf(">");
4191 }
4192
4193 static void
4194 print_config_flags(int af, uint64_t flags)
4195 {
4196 if_config_cmd_t *cmdp;
4197
4198 for (cmdp = if_config_cmd_tbl; cmdp->iff_flag != 0; cmdp++) {
4199 if ((flags & cmdp->iff_flag) &&
4200 (cmdp->iff_af == AF_UNSPEC || cmdp->iff_af == af)) {
4201 (void) printf("%s ", cmdp->iff_name);
4202 }
4203 }
4204 }
4205
4206 /*
4207 * Use the configured directory lookup mechanism (e.g. files/NIS/...)
4208 * to find the network mask. Returns true if we found one to set.
4209 *
4210 * The parameter addr_set controls whether we should get the address of
4211 * the working interface for the netmask query. If addr_set is true,
4212 * we will use the address provided. Otherwise, we will find the working
4213 * interface's address and use it instead.
4214 */
4215 static boolean_t
4216 in_getmask(struct sockaddr_in *saddr, boolean_t addr_set)
4217 {
4218 struct sockaddr_in ifaddr;
4219
4220 /*
4221 * Read the address from the interface if it is not passed in.
4222 */
4223 if (!addr_set) {
4224 (void) strncpy(lifr.lifr_name, name, sizeof (lifr.lifr_name));
4225 if (ioctl(s, SIOCGLIFADDR, (caddr_t)&lifr) < 0) {
4226 if (errno != EADDRNOTAVAIL) {
4227 (void) fprintf(stderr, "Need net number for "
4228 "mask\n");
4229 }
4230 return (_B_FALSE);
4231 }
4232 ifaddr = *((struct sockaddr_in *)&lifr.lifr_addr);
4233 } else {
4234 ifaddr.sin_addr = saddr->sin_addr;
4235 }
4236 if (getnetmaskbyaddr(ifaddr.sin_addr, &saddr->sin_addr) == 0) {
4237 saddr->sin_family = AF_INET;
4238 return (_B_TRUE);
4239 }
4240 return (_B_FALSE);
4241 }
4242
4243 static int
4244 lifnum(const char *ifname)
4245 {
4246 const char *cp;
4247
4248 if ((cp = strchr(ifname, ':')) == NULL)
4249 return (0);
4250 else
4251 return (atoi(cp + 1));
4252 }
4253
4254 static void
4255 add_ni(const char *name)
4256 {
4257 ni_t **pp;
4258 ni_t *p;
4259
4260 for (pp = &ni_list; (p = *pp) != NULL; pp = &(p->ni_next)) {
4261 if (strcmp(p->ni_name, name) == 0) {
4262 if (debug > 2)
4263 (void) fprintf(stderr, "'%s' is a duplicate\n",
4264 name);
4265 return;
4266 }
4267 }
4268
4269 if (debug > 2)
4270 (void) fprintf(stderr, "adding '%s'\n",
4271 name);
4272
4273 if ((p = malloc(sizeof (ni_t))) == NULL)
4274 return;
4275
4276 (void) strlcpy(p->ni_name, name, sizeof (p->ni_name));
4277 p->ni_next = NULL;
4278
4279 *pp = p;
4280 num_ni++;
4281 }
4282
4283 static boolean_t
4284 ni_entry(const char *linkname, void *arg)
4285 {
4286 dlpi_handle_t dh;
4287 datalink_class_t class;
4288
4289 (void) dladm_name2info(arg, linkname, NULL, NULL, &class, NULL);
4290
4291 if (class == DATALINK_CLASS_ETHERSTUB)
4292 return (_B_FALSE);
4293 if (dlpi_open(linkname, &dh, 0) != DLPI_SUCCESS)
4294 return (_B_FALSE);
4295
4296 add_ni(linkname);
4297
4298 dlpi_close(dh);
4299 return (_B_FALSE);
4300 }
4301
4302 /*
4303 * dhcp-related routines
4304 */
4305
4306 static int
4307 setifdhcp(const char *caller, const char *ifname, int argc, char *argv[])
4308 {
4309 dhcp_ipc_request_t *request;
4310 dhcp_ipc_reply_t *reply = NULL;
4311 int timeout = DHCP_IPC_WAIT_DEFAULT;
4312 dhcp_ipc_type_t type = DHCP_START;
4313 int error;
4314 boolean_t is_primary = _B_FALSE;
4315 boolean_t started = _B_FALSE;
4316
4317 for (argv++; --argc > 0; argv++) {
4318
4319 if (strcmp(*argv, "primary") == 0) {
4320 is_primary = _B_TRUE;
4321 continue;
4322 }
4323
4324 if (strcmp(*argv, "wait") == 0) {
4325 if (--argc <= 0) {
4326 usage();
4327 return (DHCP_EXIT_BADARGS);
4328 }
4329 argv++;
4330
4331 if (strcmp(*argv, "forever") == 0) {
4332 timeout = DHCP_IPC_WAIT_FOREVER;
4333 continue;
4334 }
4335
4336 if (sscanf(*argv, "%d", &timeout) != 1) {
4337 usage();
4338 return (DHCP_EXIT_BADARGS);
4339 }
4340
4341 if (timeout < 0) {
4342 usage();
4343 return (DHCP_EXIT_BADARGS);
4344 }
4345 continue;
4346 }
4347
4348 type = dhcp_string_to_request(*argv);
4349 if (type == -1) {
4350 usage();
4351 return (DHCP_EXIT_BADARGS);
4352 }
4353 }
4354
4355 /*
4356 * Only try to start agent on start or inform; in all other cases it
4357 * has to already be running for anything to make sense.
4358 */
4359 if (type == DHCP_START || type == DHCP_INFORM) {
4360 if (dhcp_start_agent(DHCP_IPC_MAX_WAIT) == -1) {
4361 (void) fprintf(stderr, "%s: unable to start %s\n",
4362 caller, DHCP_AGENT_PATH);
4363 return (DHCP_EXIT_FAILURE);
4364 }
4365 started = _B_TRUE;
4366 }
4367
4368 if (is_primary)
4369 type |= DHCP_PRIMARY;
4370
4371 if (af != AF_INET)
4372 type |= DHCP_V6;
4373
4374 request = dhcp_ipc_alloc_request(type, ifname, NULL, 0, DHCP_TYPE_NONE);
4375 if (request == NULL) {
4376 (void) fprintf(stderr, "%s: out of memory\n", caller);
4377 return (DHCP_EXIT_SYSTEM);
4378 }
4379
4380 error = dhcp_ipc_make_request(request, &reply, timeout);
4381 if (error != 0) {
4382 free(request);
4383 /*
4384 * Re-map connect error to not under control if we didn't try a
4385 * start operation, as this has to be true and results in a
4386 * clearer message, not to mention preserving compatibility
4387 * with the days when we always started dhcpagent for every
4388 * request.
4389 */
4390 if (error == DHCP_IPC_E_CONNECT && !started)
4391 error = DHCP_IPC_E_UNKIF;
4392 (void) fprintf(stderr, "%s: %s: %s\n", caller, ifname,
4393 dhcp_ipc_strerror(error));
4394 return (DHCP_EXIT_FAILURE);
4395 }
4396
4397 error = reply->return_code;
4398 if (error != 0) {
4399 free(request);
4400 free(reply);
4401
4402 if (error == DHCP_IPC_E_TIMEOUT && timeout == 0)
4403 return (DHCP_EXIT_SUCCESS);
4404
4405 (void) fprintf(stderr, "%s: %s: %s\n", caller, ifname,
4406 dhcp_ipc_strerror(error));
4407
4408 if (error == DHCP_IPC_E_TIMEOUT)
4409 return (DHCP_EXIT_TIMEOUT);
4410 else
4411 return (DHCP_EXIT_IF_FAILURE);
4412 }
4413
4414 if (DHCP_IPC_CMD(type) == DHCP_STATUS) {
4415 (void) printf("%s", dhcp_status_hdr_string());
4416 (void) printf("%s", dhcp_status_reply_to_string(reply));
4417 }
4418
4419 free(request);
4420 free(reply);
4421 return (DHCP_EXIT_SUCCESS);
4422 }
4423
4424 static void
4425 usage(void)
4426 {
4427 (void) fprintf(stderr,
4428 "usage: ifconfig <interface> | -a[ 4 | 6 | D ][ u | d ][ Z ]\n");
4429
4430 (void) fprintf(stderr, "%s",
4431 "\t[ <addr_family> ]\n"
4432 "\t[ <address>[/<prefix_length>] [ <dest_address> ] ]\n"
4433 "\t[ set [ <address>][/<prefix_length>] ]"
4434 " [ <address>/<prefix_length>] ]\n"
4435 "\t[ destination <dest_address> ]\n"
4436 "\t[ addif <address>[/<prefix_length>]"
4437 " [ <dest_address> ] ]\n"
4438 "\t[ removeif <address>[/<prefix_length>] ]\n"
4439 "\t[ arp | -arp ]\n"
4440 "\t[ auto-revarp ]\n"
4441 "\t[ broadcast <broad_addr> ]\n"
4442 "\t[ index <if_index> ]\n"
4443 "\t[ metric <n> ] [ mtu <n> ]\n"
4444 "\t[ netmask <mask> ]\n"
4445 "\t[ plumb ] [ unplumb ]\n"
4446 "\t[ preferred | -preferred ]\n"
4447 "\t[ private | -private ]\n"
4448 "\t[ local | -local ]\n"
4449 "\t[ router | -router ]\n"
4450 "\t[ subnet <subnet_address>]\n"
4451 "\t[ trailers | -trailers ]\n"
4452 "\t[ token <address>/<prefix_length> ]\n"
4453 "\t[ tsrc <tunnel_src_address> ]\n"
4454 "\t[ tdst <tunnel_dest_address> ]\n"
4455 "\t[ auth_algs <tunnel_AH_authentication_algorithm> ]\n"
4456 "\t[ encr_algs <tunnel_ESP_encryption_algorithm> ]\n"
4457 "\t[ encr_auth_algs <tunnel_ESP_authentication_algorithm> ]\n"
4458 "\t[ up ] [ down ]\n"
4459 "\t[ xmit | -xmit ]\n"
4460 "\t[ modlist ]\n"
4461 "\t[ modinsert <module_name@position> ]\n"
4462 "\t[ modremove <module_name@position> ]\n"
4463 "\t[ ipmp ]\n"
4464 "\t[ group <groupname>] | [ group \"\"]\n"
4465 "\t[ deprecated | -deprecated ]\n"
4466 "\t[ standby | -standby ]\n"
4467 "\t[ failover | -failover ]\n"
4468 "\t[ zone <zonename> | -zone ]\n"
4469 "\t[ usesrc <interface> ]\n"
4470 "\t[ all-zones ]\n");
4471
4472 (void) fprintf(stderr, "or\n");
4473 (void) fprintf(stderr,
4474 "\tifconfig <interface> | -a[ 4 | 6 | D ] [ u | d ]\n");
4475
4476 (void) fprintf(stderr, "%s", "\tauto-dhcp | dhcp\n"
4477 "\t[ wait <time> | forever ]\n\t[ primary ]\n"
4478 "\tstart | drop | ping | release | status | inform\n");
4479 }
Unleashed OS