1 /*
2 * CDDL HEADER START
3 *
4 * The contents of this file are subject to the terms of the
5 * Common Development and Distribution License (the "License").
6 * You may not use this file except in compliance with the License.
7 *
8 * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
9 * or http://www.opensolaris.org/os/licensing.
10 * See the License for the specific language governing permissions
11 * and limitations under the License.
12 *
13 * When distributing Covered Code, include this CDDL HEADER in each
14 * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
15 * If applicable, add the following below this CDDL HEADER, with the
16 * fields enclosed by brackets "[]" replaced with your own identifying
17 * information: Portions Copyright [yyyy] [name of copyright owner]
18 *
19 * CDDL HEADER END
20 */
21 /*
22 * Copyright 2010 Sun Microsystems, Inc. All rights reserved.
23 * Use is subject to license terms.
24 */
25
26 #include <stdlib.h>
27 #include <strings.h>
28 #include <errno.h>
29 #include <ctype.h>
30 #include <sys/types.h>
31 #include <sys/stat.h>
32 #include <sys/dld.h>
33 #include <sys/dld_ioc.h>
34 #include <fcntl.h>
35 #include <unistd.h>
36 #include <libdevinfo.h>
37 #include <libdladm_impl.h>
38 #include <libdlflow.h>
39 #include <libdlflow_impl.h>
40 #include <libintl.h>
41
42 #include <dlfcn.h>
43 #include <link.h>
44
45 /*
46 * XXX duplicate define
47 */
48 #define DLADM_PROP_VAL_MAX 32
49
50 static dladm_status_t i_dladm_set_flowprop_db(dladm_handle_t, const char *,
51 const char *, char **, uint_t);
52 static dladm_status_t i_dladm_get_flowprop_db(dladm_handle_t, const char *,
53 const char *, char **, uint_t *);
54
55 static fpd_getf_t do_get_maxbw;
56 static fpd_setf_t do_set_maxbw;
57 static fpd_checkf_t do_check_maxbw;
58
59 static fpd_getf_t do_get_priority;
60 static fpd_setf_t do_set_priority;
61 static fpd_checkf_t do_check_priority;
62
63 static fprop_desc_t prop_table[] = {
64 { "maxbw", { "", 0 }, NULL, 0, B_FALSE,
65 do_set_maxbw, NULL,
66 do_get_maxbw, do_check_maxbw},
67 { "priority", { "", MPL_RESET }, NULL, 0, B_FALSE,
68 do_set_priority, NULL,
69 do_get_priority, do_check_priority}
70 };
71
72 #define DLADM_MAX_FLOWPROPS (sizeof (prop_table) / sizeof (fprop_desc_t))
73
74 static prop_table_t prop_tbl = {
75 prop_table,
76 DLADM_MAX_FLOWPROPS
77 };
78
79 static resource_prop_t rsrc_prop_table[] = {
80 {"maxbw", extract_maxbw},
81 {"priority", extract_priority}
82 };
83 #define DLADM_MAX_RSRC_PROP (sizeof (rsrc_prop_table) / \
84 sizeof (resource_prop_t))
85
86 static dladm_status_t flow_proplist_check(dladm_arg_list_t *);
87
88 dladm_status_t
dladm_set_flowprop(dladm_handle_t handle,const char * flow,const char * prop_name,char ** prop_val,uint_t val_cnt,uint_t flags,char ** errprop)89 dladm_set_flowprop(dladm_handle_t handle, const char *flow,
90 const char *prop_name, char **prop_val, uint_t val_cnt, uint_t flags,
91 char **errprop)
92 {
93 dladm_status_t status = DLADM_STATUS_BADARG;
94
95 if (flow == NULL || (prop_val == NULL && val_cnt > 0) ||
96 (prop_val != NULL && val_cnt == 0) || flags == 0)
97 return (DLADM_STATUS_BADARG);
98
99 if ((flags & DLADM_OPT_ACTIVE) != 0) {
100 status = i_dladm_set_prop_temp(handle, flow, prop_name,
101 prop_val, val_cnt, flags, errprop, &prop_tbl);
102 if (status == DLADM_STATUS_TEMPONLY &&
103 (flags & DLADM_OPT_PERSIST) != 0)
104 return (DLADM_STATUS_TEMPONLY);
105 if (status != DLADM_STATUS_OK)
106 return (status);
107 }
108 if ((flags & DLADM_OPT_PERSIST) != 0) {
109 if (i_dladm_is_prop_temponly(prop_name, errprop, &prop_tbl))
110 return (DLADM_STATUS_TEMPONLY);
111
112 status = i_dladm_set_flowprop_db(handle, flow, prop_name,
113 prop_val, val_cnt);
114 }
115 return (status);
116 }
117
118 dladm_status_t
dladm_walk_flowprop(int (* func)(void *,const char *),const char * flow,void * arg)119 dladm_walk_flowprop(int (*func)(void *, const char *), const char *flow,
120 void *arg)
121 {
122 uint_t i;
123
124 if (flow == NULL || func == NULL)
125 return (DLADM_STATUS_BADARG);
126
127 /* Then show data-flow properties if there are any */
128 for (i = 0; i < DLADM_MAX_FLOWPROPS; i++) {
129 if (func(arg, prop_table[i].pd_name) != DLADM_WALK_CONTINUE)
130 break;
131 }
132 return (DLADM_STATUS_OK);
133 }
134
135 dladm_status_t
dladm_get_flowprop(dladm_handle_t handle,const char * flow,uint32_t type,const char * prop_name,char ** prop_val,uint_t * val_cntp)136 dladm_get_flowprop(dladm_handle_t handle, const char *flow, uint32_t type,
137 const char *prop_name, char **prop_val, uint_t *val_cntp)
138 {
139 dladm_status_t status;
140
141 if (flow == NULL || prop_name == NULL || prop_val == NULL ||
142 val_cntp == NULL || *val_cntp == 0)
143 return (DLADM_STATUS_BADARG);
144
145 if (type == DLADM_PROP_VAL_PERSISTENT) {
146 if (i_dladm_is_prop_temponly(prop_name, NULL, &prop_tbl))
147 return (DLADM_STATUS_TEMPONLY);
148 return (i_dladm_get_flowprop_db(handle, flow, prop_name,
149 prop_val, val_cntp));
150 }
151
152 status = i_dladm_get_prop_temp(handle, flow, type, prop_name,
153 prop_val, val_cntp, &prop_tbl);
154 if (status != DLADM_STATUS_NOTFOUND)
155 return (status);
156
157 return (DLADM_STATUS_BADARG);
158 }
159
160 #define FLOWPROP_RW_DB(handle, statep, writeop) \
161 (i_dladm_rw_db(handle, "/etc/dladm/flowprop.conf", \
162 S_IRUSR | S_IWUSR | S_IRGRP | S_IROTH, process_prop_db, \
163 (statep), (writeop)))
164
165 static dladm_status_t
i_dladm_set_flowprop_db(dladm_handle_t handle,const char * flow,const char * prop_name,char ** prop_val,uint_t val_cnt)166 i_dladm_set_flowprop_db(dladm_handle_t handle, const char *flow,
167 const char *prop_name, char **prop_val, uint_t val_cnt)
168 {
169 prop_db_state_t state;
170
171 state.ls_op = process_prop_set;
172 state.ls_name = flow;
173 state.ls_propname = prop_name;
174 state.ls_propval = prop_val;
175 state.ls_valcntp = &val_cnt;
176 state.ls_initop = NULL;
177
178 return (FLOWPROP_RW_DB(handle, &state, B_TRUE));
179 }
180
181 static dladm_status_t
i_dladm_get_flowprop_db(dladm_handle_t handle,const char * flow,const char * prop_name,char ** prop_val,uint_t * val_cntp)182 i_dladm_get_flowprop_db(dladm_handle_t handle, const char *flow,
183 const char *prop_name, char **prop_val, uint_t *val_cntp)
184 {
185 prop_db_state_t state;
186
187 state.ls_op = process_prop_get;
188 state.ls_name = flow;
189 state.ls_propname = prop_name;
190 state.ls_propval = prop_val;
191 state.ls_valcntp = val_cntp;
192 state.ls_initop = NULL;
193
194 return (FLOWPROP_RW_DB(handle, &state, B_FALSE));
195 }
196
197 dladm_status_t
i_dladm_init_flowprop_db(dladm_handle_t handle)198 i_dladm_init_flowprop_db(dladm_handle_t handle)
199 {
200 prop_db_state_t state;
201
202 state.ls_op = process_prop_init;
203 state.ls_name = NULL;
204 state.ls_propname = NULL;
205 state.ls_propval = NULL;
206 state.ls_valcntp = NULL;
207 state.ls_initop = dladm_set_flowprop;
208
209 return (FLOWPROP_RW_DB(handle, &state, B_FALSE));
210 }
211
212 #define MIN_INFO_SIZE (4 * 1024)
213
214 dladm_status_t
dladm_flow_info(dladm_handle_t handle,const char * flow,dladm_flow_attr_t * attr)215 dladm_flow_info(dladm_handle_t handle, const char *flow,
216 dladm_flow_attr_t *attr)
217 {
218 dld_ioc_walkflow_t *ioc;
219 int bufsize;
220 dld_flowinfo_t *flowinfo;
221
222 if ((flow == NULL) || (attr == NULL))
223 return (DLADM_STATUS_BADARG);
224
225 bufsize = MIN_INFO_SIZE;
226 if ((ioc = calloc(1, bufsize)) == NULL)
227 return (dladm_errno2status(errno));
228
229 (void) strlcpy(ioc->wf_name, flow, sizeof (ioc->wf_name));
230 ioc->wf_len = bufsize - sizeof (*ioc);
231
232 while (ioctl(dladm_dld_fd(handle), DLDIOC_WALKFLOW, ioc) < 0) {
233 if (errno == ENOSPC) {
234 bufsize *= 2;
235 ioc = realloc(ioc, bufsize);
236 if (ioc != NULL) {
237 (void) strlcpy(ioc->wf_name, flow,
238 MAXFLOWNAMELEN);
239 ioc->wf_len = bufsize - sizeof (*ioc);
240 continue;
241 }
242 }
243 free(ioc);
244 return (dladm_errno2status(errno));
245 }
246
247 bzero(attr, sizeof (*attr));
248
249 flowinfo = (dld_flowinfo_t *)(void *)(ioc + 1);
250
251 attr->fa_linkid = flowinfo->fi_linkid;
252 bcopy(&flowinfo->fi_flowname, &attr->fa_flowname,
253 sizeof (attr->fa_flowname));
254 bcopy(&flowinfo->fi_flow_desc, &attr->fa_flow_desc,
255 sizeof (attr->fa_flow_desc));
256 bcopy(&flowinfo->fi_resource_props, &attr->fa_resource_props,
257 sizeof (attr->fa_resource_props));
258
259 free(ioc);
260 return (DLADM_STATUS_OK);
261 }
262
263 /* ARGSUSED */
264 static dladm_status_t
do_get_maxbw(dladm_handle_t handle,const char * flow,char ** prop_val,uint_t * val_cnt)265 do_get_maxbw(dladm_handle_t handle, const char *flow, char **prop_val,
266 uint_t *val_cnt)
267 {
268 mac_resource_props_t *mrp;
269 char buf[DLADM_STRSIZE];
270 dladm_flow_attr_t fa;
271 dladm_status_t status;
272
273 status = dladm_flow_info(handle, flow, &fa);
274 if (status != DLADM_STATUS_OK)
275 return (status);
276 mrp = &(fa.fa_resource_props);
277
278 *val_cnt = 1;
279 if (mrp->mrp_mask & MRP_MAXBW) {
280 (void) snprintf(prop_val[0], DLADM_STRSIZE, "%s",
281 dladm_bw2str(mrp->mrp_maxbw, buf));
282 } else {
283 return (DLADM_STATUS_NOTSUP);
284 }
285 return (DLADM_STATUS_OK);
286 }
287
288 /* ARGSUSED */
289 static dladm_status_t
do_set_maxbw(dladm_handle_t handle,const char * flow,val_desc_t * vdp,uint_t val_cnt)290 do_set_maxbw(dladm_handle_t handle, const char *flow, val_desc_t *vdp,
291 uint_t val_cnt)
292 {
293 dld_ioc_modifyflow_t attr;
294 mac_resource_props_t mrp;
295 void *val;
296
297 if (val_cnt != 1)
298 return (DLADM_STATUS_BADVALCNT);
299
300 bzero(&mrp, sizeof (mrp));
301 if (vdp != NULL && (val = (void *)vdp->vd_val) != NULL) {
302 bcopy(val, &mrp.mrp_maxbw, sizeof (int64_t));
303 free(val);
304 } else {
305 mrp.mrp_maxbw = MRP_MAXBW_RESETVAL;
306 }
307 mrp.mrp_mask = MRP_MAXBW;
308
309 bzero(&attr, sizeof (attr));
310 (void) strlcpy(attr.mf_name, flow, sizeof (attr.mf_name));
311 bcopy(&mrp, &attr.mf_resource_props, sizeof (mac_resource_props_t));
312
313 if (ioctl(dladm_dld_fd(handle), DLDIOC_MODIFYFLOW, &attr) < 0)
314 return (dladm_errno2status(errno));
315
316 return (DLADM_STATUS_OK);
317 }
318
319 static dladm_status_t
do_check_maxbw(fprop_desc_t * pdp __unused,char ** prop_val,uint_t val_cnt,val_desc_t ** vdpp)320 do_check_maxbw(fprop_desc_t *pdp __unused, char **prop_val, uint_t val_cnt,
321 val_desc_t **vdpp)
322 {
323 uint64_t *maxbw;
324 val_desc_t *vdp = NULL;
325 dladm_status_t status = DLADM_STATUS_OK;
326
327 if (val_cnt != 1)
328 return (DLADM_STATUS_BADVALCNT);
329
330 maxbw = malloc(sizeof (uint64_t));
331 if (maxbw == NULL)
332 return (DLADM_STATUS_NOMEM);
333
334 status = dladm_str2bw(*prop_val, maxbw);
335 if (status != DLADM_STATUS_OK) {
336 free(maxbw);
337 return (status);
338 }
339
340 if ((*maxbw < MRP_MAXBW_MINVAL) && (*maxbw != 0)) {
341 free(maxbw);
342 return (DLADM_STATUS_MINMAXBW);
343 }
344
345 vdp = malloc(sizeof (val_desc_t));
346 if (vdp == NULL) {
347 free(maxbw);
348 return (DLADM_STATUS_NOMEM);
349 }
350
351 vdp->vd_val = (uintptr_t)maxbw;
352 *vdpp = vdp;
353 return (DLADM_STATUS_OK);
354 }
355
356 /* ARGSUSED */
357 static dladm_status_t
do_get_priority(dladm_handle_t handle,const char * flow,char ** prop_val,uint_t * val_cnt)358 do_get_priority(dladm_handle_t handle, const char *flow, char **prop_val,
359 uint_t *val_cnt)
360 {
361 mac_resource_props_t *mrp;
362 char buf[DLADM_STRSIZE];
363 dladm_flow_attr_t fa;
364 dladm_status_t status;
365
366 bzero(&fa, sizeof (dladm_flow_attr_t));
367 status = dladm_flow_info(handle, flow, &fa);
368 if (status != DLADM_STATUS_OK)
369 return (status);
370 mrp = &(fa.fa_resource_props);
371
372 *val_cnt = 1;
373 if (mrp->mrp_mask & MRP_PRIORITY) {
374 (void) snprintf(prop_val[0], DLADM_STRSIZE, "%s",
375 dladm_pri2str(mrp->mrp_priority, buf));
376 } else {
377 return (DLADM_STATUS_NOTSUP);
378 }
379 return (DLADM_STATUS_OK);
380 }
381
382 /* ARGSUSED */
383 static dladm_status_t
do_set_priority(dladm_handle_t handle,const char * flow,val_desc_t * vdp,uint_t val_cnt)384 do_set_priority(dladm_handle_t handle, const char *flow, val_desc_t *vdp,
385 uint_t val_cnt)
386 {
387 dld_ioc_modifyflow_t attr;
388 mac_resource_props_t mrp;
389
390 if (val_cnt != 1)
391 return (DLADM_STATUS_BADVALCNT);
392
393 bzero(&mrp, sizeof (mrp));
394 if (vdp != NULL) {
395 bcopy(&vdp->vd_val, &mrp.mrp_priority,
396 sizeof (mac_priority_level_t));
397 } else {
398 mrp.mrp_priority = MPL_RESET;
399 }
400 mrp.mrp_mask = MRP_PRIORITY;
401
402 bzero(&attr, sizeof (attr));
403 (void) strlcpy(attr.mf_name, flow, sizeof (attr.mf_name));
404 bcopy(&mrp, &attr.mf_resource_props, sizeof (mac_resource_props_t));
405
406 if (ioctl(dladm_dld_fd(handle), DLDIOC_MODIFYFLOW, &attr) < 0)
407 return (dladm_errno2status(errno));
408
409 return (DLADM_STATUS_OK);
410 }
411
412 static dladm_status_t
do_check_priority(fprop_desc_t * pdp __unused,char ** prop_val,uint_t val_cnt,val_desc_t ** vdpp)413 do_check_priority(fprop_desc_t *pdp __unused, char **prop_val, uint_t val_cnt,
414 val_desc_t **vdpp)
415 {
416 mac_priority_level_t pri;
417 val_desc_t *vdp = NULL;
418 dladm_status_t status = DLADM_STATUS_OK;
419
420 if (val_cnt != 1)
421 return (DLADM_STATUS_BADVALCNT);
422
423 status = dladm_str2pri(*prop_val, &pri);
424 if (status != DLADM_STATUS_OK)
425 return (status);
426
427 vdp = malloc(sizeof (val_desc_t));
428 if (vdp == NULL)
429 return (DLADM_STATUS_NOMEM);
430
431 vdp->vd_val = (uint_t)pri;
432 *vdpp = vdp;
433 return (DLADM_STATUS_OK);
434 }
435
436 static dladm_status_t
flow_proplist_check(dladm_arg_list_t * proplist)437 flow_proplist_check(dladm_arg_list_t *proplist)
438 {
439 uint_t i, j;
440 boolean_t matched;
441
442 for (i = 0; i < proplist->al_count; i++) {
443 matched = B_FALSE;
444 for (j = 0; j < DLADM_MAX_FLOWPROPS; j++) {
445 if (strcmp(proplist->al_info[i].ai_name,
446 prop_table[j].pd_name) == 0)
447 matched = B_TRUE;
448 }
449 if (!matched)
450 return (DLADM_STATUS_BADPROP);
451 }
452 return (DLADM_STATUS_OK);
453
454 }
455
456 dladm_status_t
dladm_parse_flow_props(char * str,dladm_arg_list_t ** listp,boolean_t novalues)457 dladm_parse_flow_props(char *str, dladm_arg_list_t **listp, boolean_t novalues)
458 {
459 dladm_status_t status;
460
461 status = dladm_parse_args(str, listp, novalues);
462 if (status != DLADM_STATUS_OK)
463 return (status);
464
465 if (*listp != NULL && (status = flow_proplist_check(*listp)
466 != DLADM_STATUS_OK)) {
467 dladm_free_props(*listp);
468 return (status);
469 }
470
471 return (DLADM_STATUS_OK);
472 }
473
474 /*
475 * Retrieve the named property from a proplist, check the value and
476 * convert to a kernel structure.
477 */
478 static dladm_status_t
i_dladm_flow_proplist_extract_one(dladm_arg_list_t * proplist,const char * name,void * arg)479 i_dladm_flow_proplist_extract_one(dladm_arg_list_t *proplist,
480 const char *name, void *arg)
481 {
482 dladm_status_t status = DLADM_STATUS_OK;
483 dladm_arg_info_t *aip = NULL;
484 uint_t i, j;
485
486 /* Find named property in proplist */
487 for (i = 0; i < proplist->al_count; i++) {
488 aip = &proplist->al_info[i];
489 if (strcasecmp(aip->ai_name, name) == 0)
490 break;
491 }
492
493 /* Property not in list */
494 if (i == proplist->al_count)
495 return (DLADM_STATUS_OK);
496
497 if (aip->ai_val[0] == NULL)
498 return (DLADM_STATUS_BADARG);
499
500 for (i = 0; i < DLADM_MAX_FLOWPROPS; i++) {
501 fprop_desc_t *pdp = &prop_table[i];
502 val_desc_t *vdp;
503
504 vdp = malloc(sizeof (val_desc_t) * aip->ai_count);
505 if (vdp == NULL)
506 return (DLADM_STATUS_NOMEM);
507
508 if (strcasecmp(aip->ai_name, pdp->pd_name) != 0)
509 continue;
510
511 /* Check property value */
512 if (pdp->pd_check != NULL) {
513 status = pdp->pd_check(pdp, aip->ai_val,
514 aip->ai_count, &vdp);
515 } else {
516 status = DLADM_STATUS_BADARG;
517 }
518
519 if (status != DLADM_STATUS_OK)
520 return (status);
521
522 for (j = 0; j < DLADM_MAX_RSRC_PROP; j++) {
523 resource_prop_t *rpp = &rsrc_prop_table[j];
524
525 if (strcasecmp(aip->ai_name, rpp->rp_name) != 0)
526 continue;
527
528 /* Extract kernel structure */
529 if (rpp->rp_extract != NULL) {
530 status = rpp->rp_extract(vdp,
531 aip->ai_count, arg);
532 } else {
533 status = DLADM_STATUS_BADARG;
534 }
535 break;
536 }
537
538 if (status != DLADM_STATUS_OK)
539 return (status);
540
541 break;
542 }
543 return (status);
544 }
545
546 /*
547 * Extract properties from a proplist and convert to mac_resource_props_t.
548 */
549 dladm_status_t
dladm_flow_proplist_extract(dladm_arg_list_t * proplist,mac_resource_props_t * mrp)550 dladm_flow_proplist_extract(dladm_arg_list_t *proplist,
551 mac_resource_props_t *mrp)
552 {
553 dladm_status_t status = DLADM_STATUS_OK;
554
555 status = i_dladm_flow_proplist_extract_one(proplist, "maxbw", mrp);
556 if (status != DLADM_STATUS_OK)
557 return (status);
558 status = i_dladm_flow_proplist_extract_one(proplist, "priority", mrp);
559 if (status != DLADM_STATUS_OK)
560 return (status);
561 return (status);
562 }
563
564 dladm_status_t
i_dladm_set_flow_proplist_db(dladm_handle_t handle,char * flow,dladm_arg_list_t * proplist)565 i_dladm_set_flow_proplist_db(dladm_handle_t handle, char *flow,
566 dladm_arg_list_t *proplist)
567 {
568 dladm_status_t status, ssave = DLADM_STATUS_OK;
569 dladm_arg_info_t ai;
570 uint_t i;
571
572 for (i = 0; i < proplist->al_count; i++) {
573 ai = proplist->al_info[i];
574 status = i_dladm_set_flowprop_db(handle, flow, ai.ai_name,
575 ai.ai_val, ai.ai_count);
576 if (status != DLADM_STATUS_OK)
577 ssave = status;
578 }
579 return (ssave);
580 }
581