2 * Copyright (c) 2010, 2011, 2012, 2013, 2014, 2015 Nicira, Inc.
4 * Licensed under the Apache License, Version 2.0 (the "License");
5 * you may not use this file except in compliance with the License.
6 * You may obtain a copy of the License at:
8 * http://www.apache.org/licenses/LICENSE-2.0
10 * Unless required by applicable law or agreed to in writing, software
11 * distributed under the License is distributed on an "AS IS" BASIS,
12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13 * See the License for the specific language governing permissions and
14 * limitations under the License.
19 #include "ofp-parse.h"
25 #include "byte-order.h"
26 #include "dynamic-string.h"
28 #include "meta-flow.h"
29 #include "multipath.h"
32 #include "ofp-actions.h"
35 #include "openflow/openflow.h"
36 #include "ovs-thread.h"
39 #include "socket-util.h"
40 #include "openvswitch/vconn.h"
42 /* Parses 'str' as an 8-bit unsigned integer into '*valuep'.
44 * 'name' describes the value parsed in an error message, if any.
46 * Returns NULL if successful, otherwise a malloc()'d string describing the
47 * error. The caller is responsible for freeing the returned string. */
48 char * OVS_WARN_UNUSED_RESULT
49 str_to_u8(const char *str
, const char *name
, uint8_t *valuep
)
53 if (!str_to_int(str
, 0, &value
) || value
< 0 || value
> 255) {
54 return xasprintf("invalid %s \"%s\"", name
, str
);
60 /* Parses 'str' as a 16-bit unsigned integer into '*valuep'.
62 * 'name' describes the value parsed in an error message, if any.
64 * Returns NULL if successful, otherwise a malloc()'d string describing the
65 * error. The caller is responsible for freeing the returned string. */
66 char * OVS_WARN_UNUSED_RESULT
67 str_to_u16(const char *str
, const char *name
, uint16_t *valuep
)
71 if (!str_to_int(str
, 0, &value
) || value
< 0 || value
> 65535) {
72 return xasprintf("invalid %s \"%s\"", name
, str
);
78 /* Parses 'str' as a 32-bit unsigned integer into '*valuep'.
80 * Returns NULL if successful, otherwise a malloc()'d string describing the
81 * error. The caller is responsible for freeing the returned string. */
82 char * OVS_WARN_UNUSED_RESULT
83 str_to_u32(const char *str
, uint32_t *valuep
)
89 return xstrdup("missing required numeric argument");
93 value
= strtoul(str
, &tail
, 0);
94 if (errno
== EINVAL
|| errno
== ERANGE
|| *tail
) {
95 return xasprintf("invalid numeric format %s", str
);
101 /* Parses 'str' as an 64-bit unsigned integer into '*valuep'.
103 * Returns NULL if successful, otherwise a malloc()'d string describing the
104 * error. The caller is responsible for freeing the returned string. */
105 char * OVS_WARN_UNUSED_RESULT
106 str_to_u64(const char *str
, uint64_t *valuep
)
112 return xstrdup("missing required numeric argument");
116 value
= strtoull(str
, &tail
, 0);
117 if (errno
== EINVAL
|| errno
== ERANGE
|| *tail
) {
118 return xasprintf("invalid numeric format %s", str
);
124 /* Parses 'str' as an 64-bit unsigned integer in network byte order into
127 * Returns NULL if successful, otherwise a malloc()'d string describing the
128 * error. The caller is responsible for freeing the returned string. */
129 char * OVS_WARN_UNUSED_RESULT
130 str_to_be64(const char *str
, ovs_be64
*valuep
)
135 error
= str_to_u64(str
, &value
);
137 *valuep
= htonll(value
);
142 /* Parses 'str' as an Ethernet address into 'mac'.
144 * Returns NULL if successful, otherwise a malloc()'d string describing the
145 * error. The caller is responsible for freeing the returned string. */
146 char * OVS_WARN_UNUSED_RESULT
147 str_to_mac(const char *str
, struct eth_addr
*mac
)
149 if (!ovs_scan(str
, ETH_ADDR_SCAN_FMT
, ETH_ADDR_SCAN_ARGS(*mac
))) {
150 return xasprintf("invalid mac address %s", str
);
155 /* Parses 'str' as an IP address into '*ip'.
157 * Returns NULL if successful, otherwise a malloc()'d string describing the
158 * error. The caller is responsible for freeing the returned string. */
159 char * OVS_WARN_UNUSED_RESULT
160 str_to_ip(const char *str
, ovs_be32
*ip
)
162 struct in_addr in_addr
;
164 if (lookup_ip(str
, &in_addr
)) {
165 return xasprintf("%s: could not convert to IP address", str
);
167 *ip
= in_addr
.s_addr
;
178 parse_protocol(const char *name
, const struct protocol
**p_out
)
180 static const struct protocol protocols
[] = {
181 { "ip", ETH_TYPE_IP
, 0 },
182 { "ipv4", ETH_TYPE_IP
, 0 },
183 { "ip4", ETH_TYPE_IP
, 0 },
184 { "arp", ETH_TYPE_ARP
, 0 },
185 { "icmp", ETH_TYPE_IP
, IPPROTO_ICMP
},
186 { "tcp", ETH_TYPE_IP
, IPPROTO_TCP
},
187 { "udp", ETH_TYPE_IP
, IPPROTO_UDP
},
188 { "sctp", ETH_TYPE_IP
, IPPROTO_SCTP
},
189 { "ipv6", ETH_TYPE_IPV6
, 0 },
190 { "ip6", ETH_TYPE_IPV6
, 0 },
191 { "icmp6", ETH_TYPE_IPV6
, IPPROTO_ICMPV6
},
192 { "tcp6", ETH_TYPE_IPV6
, IPPROTO_TCP
},
193 { "udp6", ETH_TYPE_IPV6
, IPPROTO_UDP
},
194 { "sctp6", ETH_TYPE_IPV6
, IPPROTO_SCTP
},
195 { "rarp", ETH_TYPE_RARP
, 0},
196 { "mpls", ETH_TYPE_MPLS
, 0 },
197 { "mplsm", ETH_TYPE_MPLS_MCAST
, 0 },
199 const struct protocol
*p
;
201 for (p
= protocols
; p
< &protocols
[ARRAY_SIZE(protocols
)]; p
++) {
202 if (!strcmp(p
->name
, name
)) {
211 /* Parses 's' as the (possibly masked) value of field 'mf', and updates
212 * 'match' appropriately. Restricts the set of usable protocols to ones
213 * supporting the parsed field.
215 * Returns NULL if successful, otherwise a malloc()'d string describing the
216 * error. The caller is responsible for freeing the returned string. */
217 static char * OVS_WARN_UNUSED_RESULT
218 parse_field(const struct mf_field
*mf
, const char *s
, struct match
*match
,
219 enum ofputil_protocol
*usable_protocols
)
221 union mf_value value
, mask
;
224 error
= mf_parse(mf
, s
, &value
, &mask
);
226 *usable_protocols
&= mf_set(mf
, &value
, &mask
, match
);
232 extract_actions(char *s
)
234 s
= strstr(s
, "action");
237 s
= strchr(s
+ 1, '=');
238 return s
? s
+ 1 : NULL
;
245 static char * OVS_WARN_UNUSED_RESULT
246 parse_ofp_str__(struct ofputil_flow_mod
*fm
, int command
, char *string
,
247 enum ofputil_protocol
*usable_protocols
)
252 F_IMPORTANCE
= 1 << 2,
257 char *save_ptr
= NULL
;
258 char *act_str
= NULL
;
261 *usable_protocols
= OFPUTIL_P_ANY
;
266 string
+= strspn(string
, " \t\r\n"); /* Skip white space. */
267 len
= strcspn(string
, ", \t\r\n"); /* Get length of the first token. */
269 if (!strncmp(string
, "add", len
)) {
271 } else if (!strncmp(string
, "delete", len
)) {
272 command
= OFPFC_DELETE
;
273 } else if (!strncmp(string
, "delete_strict", len
)) {
274 command
= OFPFC_DELETE_STRICT
;
275 } else if (!strncmp(string
, "modify", len
)) {
276 command
= OFPFC_MODIFY
;
277 } else if (!strncmp(string
, "modify_strict", len
)) {
278 command
= OFPFC_MODIFY_STRICT
;
292 fields
= F_ACTIONS
| F_TIMEOUT
| F_PRIORITY
| F_FLAGS
| F_IMPORTANCE
;
299 case OFPFC_DELETE_STRICT
:
300 fields
= F_OUT_PORT
| F_PRIORITY
;
304 fields
= F_ACTIONS
| F_TIMEOUT
| F_PRIORITY
| F_FLAGS
;
307 case OFPFC_MODIFY_STRICT
:
308 fields
= F_ACTIONS
| F_TIMEOUT
| F_PRIORITY
| F_FLAGS
;
315 match_init_catchall(&fm
->match
);
316 fm
->priority
= OFP_DEFAULT_PRIORITY
;
317 fm
->cookie
= htonll(0);
318 fm
->cookie_mask
= htonll(0);
319 if (command
== OFPFC_MODIFY
|| command
== OFPFC_MODIFY_STRICT
) {
320 /* For modify, by default, don't update the cookie. */
321 fm
->new_cookie
= OVS_BE64_MAX
;
323 fm
->new_cookie
= htonll(0);
325 fm
->modify_cookie
= false;
327 fm
->command
= command
;
328 fm
->idle_timeout
= OFP_FLOW_PERMANENT
;
329 fm
->hard_timeout
= OFP_FLOW_PERMANENT
;
330 fm
->buffer_id
= UINT32_MAX
;
331 fm
->out_port
= OFPP_ANY
;
334 fm
->out_group
= OFPG11_ANY
;
335 fm
->delete_reason
= OFPRR_DELETE
;
336 if (fields
& F_ACTIONS
) {
337 act_str
= extract_actions(string
);
339 return xstrdup("must specify an action");
342 for (name
= strtok_r(string
, "=, \t\r\n", &save_ptr
); name
;
343 name
= strtok_r(NULL
, "=, \t\r\n", &save_ptr
)) {
344 const struct protocol
*p
;
347 if (parse_protocol(name
, &p
)) {
348 match_set_dl_type(&fm
->match
, htons(p
->dl_type
));
350 match_set_nw_proto(&fm
->match
, p
->nw_proto
);
352 } else if (fields
& F_FLAGS
&& !strcmp(name
, "send_flow_rem")) {
353 fm
->flags
|= OFPUTIL_FF_SEND_FLOW_REM
;
354 } else if (fields
& F_FLAGS
&& !strcmp(name
, "check_overlap")) {
355 fm
->flags
|= OFPUTIL_FF_CHECK_OVERLAP
;
356 } else if (fields
& F_FLAGS
&& !strcmp(name
, "reset_counts")) {
357 fm
->flags
|= OFPUTIL_FF_RESET_COUNTS
;
358 *usable_protocols
&= OFPUTIL_P_OF12_UP
;
359 } else if (fields
& F_FLAGS
&& !strcmp(name
, "no_packet_counts")) {
360 fm
->flags
|= OFPUTIL_FF_NO_PKT_COUNTS
;
361 *usable_protocols
&= OFPUTIL_P_OF13_UP
;
362 } else if (fields
& F_FLAGS
&& !strcmp(name
, "no_byte_counts")) {
363 fm
->flags
|= OFPUTIL_FF_NO_BYT_COUNTS
;
364 *usable_protocols
&= OFPUTIL_P_OF13_UP
;
365 } else if (!strcmp(name
, "no_readonly_table")
366 || !strcmp(name
, "allow_hidden_fields")) {
367 /* ignore these fields. */
368 } else if (mf_from_name(name
)) {
371 value
= strtok_r(NULL
, ", \t\r\n", &save_ptr
);
373 /* If there's no value, we're just trying to match on the
374 * existence of the field, so use a no-op value. */
378 error
= parse_field(mf_from_name(name
), value
, &fm
->match
,
386 value
= strtok_r(NULL
, ", \t\r\n", &save_ptr
);
388 return xasprintf("field %s missing value", name
);
391 if (!strcmp(name
, "table")) {
392 error
= str_to_u8(value
, "table", &fm
->table_id
);
393 if (fm
->table_id
!= 0xff) {
394 *usable_protocols
&= OFPUTIL_P_TID
;
396 } else if (fields
& F_OUT_PORT
&& !strcmp(name
, "out_port")) {
397 if (!ofputil_port_from_string(value
, &fm
->out_port
)) {
398 error
= xasprintf("%s is not a valid OpenFlow port",
401 } else if (fields
& F_PRIORITY
&& !strcmp(name
, "priority")) {
402 uint16_t priority
= 0;
404 error
= str_to_u16(value
, name
, &priority
);
405 fm
->priority
= priority
;
406 } else if (fields
& F_TIMEOUT
&& !strcmp(name
, "idle_timeout")) {
407 error
= str_to_u16(value
, name
, &fm
->idle_timeout
);
408 } else if (fields
& F_TIMEOUT
&& !strcmp(name
, "hard_timeout")) {
409 error
= str_to_u16(value
, name
, &fm
->hard_timeout
);
410 } else if (fields
& F_IMPORTANCE
&& !strcmp(name
, "importance")) {
411 error
= str_to_u16(value
, name
, &fm
->importance
);
412 } else if (!strcmp(name
, "cookie")) {
413 char *mask
= strchr(value
, '/');
416 /* A mask means we're searching for a cookie. */
417 if (command
== OFPFC_ADD
) {
418 return xstrdup("flow additions cannot use "
422 error
= str_to_be64(value
, &fm
->cookie
);
426 error
= str_to_be64(mask
+ 1, &fm
->cookie_mask
);
428 /* Matching of the cookie is only supported through NXM or
430 if (fm
->cookie_mask
!= htonll(0)) {
431 *usable_protocols
&= OFPUTIL_P_NXM_OF11_UP
;
434 /* No mask means that the cookie is being set. */
435 if (command
!= OFPFC_ADD
&& command
!= OFPFC_MODIFY
436 && command
!= OFPFC_MODIFY_STRICT
) {
437 return xstrdup("cannot set cookie");
439 error
= str_to_be64(value
, &fm
->new_cookie
);
440 fm
->modify_cookie
= true;
442 } else if (!strcmp(name
, "duration")
443 || !strcmp(name
, "n_packets")
444 || !strcmp(name
, "n_bytes")
445 || !strcmp(name
, "idle_age")
446 || !strcmp(name
, "hard_age")) {
447 /* Ignore these, so that users can feed the output of
448 * "ovs-ofctl dump-flows" back into commands that parse
451 error
= xasprintf("unknown keyword %s", name
);
459 /* Check for usable protocol interdependencies between match fields. */
460 if (fm
->match
.flow
.dl_type
== htons(ETH_TYPE_IPV6
)) {
461 const struct flow_wildcards
*wc
= &fm
->match
.wc
;
462 /* Only NXM and OXM support matching L3 and L4 fields within IPv6.
464 * (IPv6 specific fields as well as arp_sha, arp_tha, nw_frag, and
465 * nw_ttl are covered elsewhere so they don't need to be included in
468 if (wc
->masks
.nw_proto
|| wc
->masks
.nw_tos
469 || wc
->masks
.tp_src
|| wc
->masks
.tp_dst
) {
470 *usable_protocols
&= OFPUTIL_P_NXM_OXM_ANY
;
473 if (!fm
->cookie_mask
&& fm
->new_cookie
== OVS_BE64_MAX
474 && (command
== OFPFC_MODIFY
|| command
== OFPFC_MODIFY_STRICT
)) {
475 /* On modifies without a mask, we are supposed to add a flow if
476 * one does not exist. If a cookie wasn't been specified, use a
477 * default of zero. */
478 fm
->new_cookie
= htonll(0);
480 if (fields
& F_ACTIONS
) {
481 enum ofputil_protocol action_usable_protocols
;
482 struct ofpbuf ofpacts
;
485 ofpbuf_init(&ofpacts
, 32);
486 error
= ofpacts_parse_instructions(act_str
, &ofpacts
,
487 &action_usable_protocols
);
488 *usable_protocols
&= action_usable_protocols
;
492 err
= ofpacts_check(ofpacts
.data
, ofpacts
.size
, &fm
->match
.flow
,
493 OFPP_MAX
, fm
->table_id
, 255, usable_protocols
);
494 if (!err
&& !*usable_protocols
) {
495 err
= OFPERR_OFPBAC_MATCH_INCONSISTENT
;
498 error
= xasprintf("actions are invalid with specified match "
499 "(%s)", ofperr_to_string(err
));
504 ofpbuf_uninit(&ofpacts
);
508 fm
->ofpacts_len
= ofpacts
.size
;
509 fm
->ofpacts
= ofpbuf_steal_data(&ofpacts
);
518 /* Convert 'str_' (as described in the Flow Syntax section of the ovs-ofctl man
519 * page) into 'fm' for sending the specified flow_mod 'command' to a switch.
520 * Returns the set of usable protocols in '*usable_protocols'.
522 * To parse syntax for an OFPT_FLOW_MOD (or NXT_FLOW_MOD), use an OFPFC_*
523 * constant for 'command'. To parse syntax for an OFPST_FLOW or
524 * OFPST_AGGREGATE (or NXST_FLOW or NXST_AGGREGATE), use -1 for 'command'.
526 * If 'command' is given as -2, 'str_' may begin with a command name ("add",
527 * "modify", "delete", "modify_strict", or "delete_strict"). A missing command
528 * name is treated as "add".
530 * Returns NULL if successful, otherwise a malloc()'d string describing the
531 * error. The caller is responsible for freeing the returned string. */
532 char * OVS_WARN_UNUSED_RESULT
533 parse_ofp_str(struct ofputil_flow_mod
*fm
, int command
, const char *str_
,
534 enum ofputil_protocol
*usable_protocols
)
536 char *string
= xstrdup(str_
);
539 error
= parse_ofp_str__(fm
, command
, string
, usable_protocols
);
549 static char * OVS_WARN_UNUSED_RESULT
550 parse_ofp_meter_mod_str__(struct ofputil_meter_mod
*mm
, char *string
,
551 struct ofpbuf
*bands
, int command
,
552 enum ofputil_protocol
*usable_protocols
)
559 char *save_ptr
= NULL
;
560 char *band_str
= NULL
;
563 /* Meters require at least OF 1.3. */
564 *usable_protocols
= OFPUTIL_P_OF13_UP
;
572 fields
= F_METER
| F_FLAGS
| F_BANDS
;
580 fields
= F_METER
| F_FLAGS
| F_BANDS
;
587 mm
->command
= command
;
588 mm
->meter
.meter_id
= 0;
590 if (fields
& F_BANDS
) {
591 band_str
= strstr(string
, "band");
593 return xstrdup("must specify bands");
597 band_str
= strchr(band_str
+ 1, '=');
599 return xstrdup("must specify bands");
604 for (name
= strtok_r(string
, "=, \t\r\n", &save_ptr
); name
;
605 name
= strtok_r(NULL
, "=, \t\r\n", &save_ptr
)) {
607 if (fields
& F_FLAGS
&& !strcmp(name
, "kbps")) {
608 mm
->meter
.flags
|= OFPMF13_KBPS
;
609 } else if (fields
& F_FLAGS
&& !strcmp(name
, "pktps")) {
610 mm
->meter
.flags
|= OFPMF13_PKTPS
;
611 } else if (fields
& F_FLAGS
&& !strcmp(name
, "burst")) {
612 mm
->meter
.flags
|= OFPMF13_BURST
;
613 } else if (fields
& F_FLAGS
&& !strcmp(name
, "stats")) {
614 mm
->meter
.flags
|= OFPMF13_STATS
;
618 value
= strtok_r(NULL
, ", \t\r\n", &save_ptr
);
620 return xasprintf("field %s missing value", name
);
623 if (!strcmp(name
, "meter")) {
624 if (!strcmp(value
, "all")) {
625 mm
->meter
.meter_id
= OFPM13_ALL
;
626 } else if (!strcmp(value
, "controller")) {
627 mm
->meter
.meter_id
= OFPM13_CONTROLLER
;
628 } else if (!strcmp(value
, "slowpath")) {
629 mm
->meter
.meter_id
= OFPM13_SLOWPATH
;
631 char *error
= str_to_u32(value
, &mm
->meter
.meter_id
);
635 if (mm
->meter
.meter_id
> OFPM13_MAX
636 || !mm
->meter
.meter_id
) {
637 return xasprintf("invalid value for %s", name
);
641 return xasprintf("unknown keyword %s", name
);
645 if (fields
& F_METER
&& !mm
->meter
.meter_id
) {
646 return xstrdup("must specify 'meter'");
648 if (fields
& F_FLAGS
&& !mm
->meter
.flags
) {
649 return xstrdup("meter must specify either 'kbps' or 'pktps'");
652 if (fields
& F_BANDS
) {
653 uint16_t n_bands
= 0;
654 struct ofputil_meter_band
*band
= NULL
;
657 for (name
= strtok_r(band_str
, "=, \t\r\n", &save_ptr
); name
;
658 name
= strtok_r(NULL
, "=, \t\r\n", &save_ptr
)) {
662 value
= strtok_r(NULL
, ", \t\r\n", &save_ptr
);
664 return xasprintf("field %s missing value", name
);
667 if (!strcmp(name
, "type")) {
668 /* Start a new band */
669 band
= ofpbuf_put_zeros(bands
, sizeof *band
);
672 if (!strcmp(value
, "drop")) {
673 band
->type
= OFPMBT13_DROP
;
674 } else if (!strcmp(value
, "dscp_remark")) {
675 band
->type
= OFPMBT13_DSCP_REMARK
;
677 return xasprintf("field %s unknown value %s", name
, value
);
679 } else if (!band
|| !band
->type
) {
680 return xstrdup("band must start with the 'type' keyword");
681 } else if (!strcmp(name
, "rate")) {
682 char *error
= str_to_u32(value
, &band
->rate
);
686 } else if (!strcmp(name
, "burst_size")) {
687 char *error
= str_to_u32(value
, &band
->burst_size
);
691 } else if (!strcmp(name
, "prec_level")) {
692 char *error
= str_to_u8(value
, name
, &band
->prec_level
);
697 return xasprintf("unknown keyword %s", name
);
702 return xstrdup("meter must have bands");
705 mm
->meter
.n_bands
= n_bands
;
706 mm
->meter
.bands
= ofpbuf_steal_data(bands
);
708 for (i
= 0; i
< n_bands
; ++i
) {
709 band
= &mm
->meter
.bands
[i
];
712 return xstrdup("band must have 'type'");
714 if (band
->type
== OFPMBT13_DSCP_REMARK
) {
715 if (!band
->prec_level
) {
716 return xstrdup("'dscp_remark' band must have"
720 if (band
->prec_level
) {
721 return xstrdup("Only 'dscp_remark' band may have"
726 return xstrdup("band must have 'rate'");
728 if (mm
->meter
.flags
& OFPMF13_BURST
) {
729 if (!band
->burst_size
) {
730 return xstrdup("band must have 'burst_size' "
731 "when 'burst' flag is set");
734 if (band
->burst_size
) {
735 return xstrdup("band may have 'burst_size' only "
736 "when 'burst' flag is set");
741 mm
->meter
.n_bands
= 0;
742 mm
->meter
.bands
= NULL
;
748 /* Convert 'str_' (as described in the Flow Syntax section of the ovs-ofctl man
749 * page) into 'mm' for sending the specified meter_mod 'command' to a switch.
751 * Returns NULL if successful, otherwise a malloc()'d string describing the
752 * error. The caller is responsible for freeing the returned string. */
753 char * OVS_WARN_UNUSED_RESULT
754 parse_ofp_meter_mod_str(struct ofputil_meter_mod
*mm
, const char *str_
,
755 int command
, enum ofputil_protocol
*usable_protocols
)
761 ofpbuf_init(&bands
, 64);
762 string
= xstrdup(str_
);
764 error
= parse_ofp_meter_mod_str__(mm
, string
, &bands
, command
,
768 ofpbuf_uninit(&bands
);
773 static char * OVS_WARN_UNUSED_RESULT
774 parse_flow_monitor_request__(struct ofputil_flow_monitor_request
*fmr
,
775 const char *str_
, char *string
,
776 enum ofputil_protocol
*usable_protocols
)
778 static atomic_count id
= ATOMIC_COUNT_INIT(0);
779 char *save_ptr
= NULL
;
782 fmr
->id
= atomic_count_inc(&id
);
784 fmr
->flags
= (NXFMF_INITIAL
| NXFMF_ADD
| NXFMF_DELETE
| NXFMF_MODIFY
785 | NXFMF_OWN
| NXFMF_ACTIONS
);
786 fmr
->out_port
= OFPP_NONE
;
787 fmr
->table_id
= 0xff;
788 match_init_catchall(&fmr
->match
);
790 for (name
= strtok_r(string
, "=, \t\r\n", &save_ptr
); name
;
791 name
= strtok_r(NULL
, "=, \t\r\n", &save_ptr
)) {
792 const struct protocol
*p
;
794 if (!strcmp(name
, "!initial")) {
795 fmr
->flags
&= ~NXFMF_INITIAL
;
796 } else if (!strcmp(name
, "!add")) {
797 fmr
->flags
&= ~NXFMF_ADD
;
798 } else if (!strcmp(name
, "!delete")) {
799 fmr
->flags
&= ~NXFMF_DELETE
;
800 } else if (!strcmp(name
, "!modify")) {
801 fmr
->flags
&= ~NXFMF_MODIFY
;
802 } else if (!strcmp(name
, "!actions")) {
803 fmr
->flags
&= ~NXFMF_ACTIONS
;
804 } else if (!strcmp(name
, "!own")) {
805 fmr
->flags
&= ~NXFMF_OWN
;
806 } else if (parse_protocol(name
, &p
)) {
807 match_set_dl_type(&fmr
->match
, htons(p
->dl_type
));
809 match_set_nw_proto(&fmr
->match
, p
->nw_proto
);
814 value
= strtok_r(NULL
, ", \t\r\n", &save_ptr
);
816 return xasprintf("%s: field %s missing value", str_
, name
);
819 if (!strcmp(name
, "table")) {
820 char *error
= str_to_u8(value
, "table", &fmr
->table_id
);
824 } else if (!strcmp(name
, "out_port")) {
825 fmr
->out_port
= u16_to_ofp(atoi(value
));
826 } else if (mf_from_name(name
)) {
829 error
= parse_field(mf_from_name(name
), value
, &fmr
->match
,
835 return xasprintf("%s: unknown keyword %s", str_
, name
);
842 /* Convert 'str_' (as described in the documentation for the "monitor" command
843 * in the ovs-ofctl man page) into 'fmr'.
845 * Returns NULL if successful, otherwise a malloc()'d string describing the
846 * error. The caller is responsible for freeing the returned string. */
847 char * OVS_WARN_UNUSED_RESULT
848 parse_flow_monitor_request(struct ofputil_flow_monitor_request
*fmr
,
850 enum ofputil_protocol
*usable_protocols
)
852 char *string
= xstrdup(str_
);
853 char *error
= parse_flow_monitor_request__(fmr
, str_
, string
,
859 /* Parses 'string' as an OFPT_FLOW_MOD or NXT_FLOW_MOD with command 'command'
860 * (one of OFPFC_*) into 'fm'.
862 * If 'command' is given as -2, 'string' may begin with a command name ("add",
863 * "modify", "delete", "modify_strict", or "delete_strict"). A missing command
864 * name is treated as "add".
866 * Returns NULL if successful, otherwise a malloc()'d string describing the
867 * error. The caller is responsible for freeing the returned string. */
868 char * OVS_WARN_UNUSED_RESULT
869 parse_ofp_flow_mod_str(struct ofputil_flow_mod
*fm
, const char *string
,
871 enum ofputil_protocol
*usable_protocols
)
873 char *error
= parse_ofp_str(fm
, command
, string
, usable_protocols
);
876 /* Normalize a copy of the match. This ensures that non-normalized
877 * flows get logged but doesn't affect what gets sent to the switch, so
878 * that the switch can do whatever it likes with the flow. */
879 struct match match_copy
= fm
->match
;
880 ofputil_normalize_match(&match_copy
);
886 /* Convert 'table_id' and 'setting' (as described for the "mod-table" command
887 * in the ovs-ofctl man page) into 'tm' for sending a table_mod command to a
890 * Stores a bitmap of the OpenFlow versions that are usable for 'tm' into
891 * '*usable_versions'.
893 * Returns NULL if successful, otherwise a malloc()'d string describing the
894 * error. The caller is responsible for freeing the returned string. */
895 char * OVS_WARN_UNUSED_RESULT
896 parse_ofp_table_mod(struct ofputil_table_mod
*tm
, const char *table_id
,
897 const char *setting
, uint32_t *usable_versions
)
899 *usable_versions
= 0;
900 if (!strcasecmp(table_id
, "all")) {
901 tm
->table_id
= OFPTT_ALL
;
903 char *error
= str_to_u8(table_id
, "table_id", &tm
->table_id
);
909 tm
->miss
= OFPUTIL_TABLE_MISS_DEFAULT
;
910 tm
->eviction
= OFPUTIL_TABLE_EVICTION_DEFAULT
;
911 tm
->eviction_flags
= UINT32_MAX
;
913 /* Only OpenFlow 1.1 and 1.2 can configure table-miss via table_mod.
914 * Only OpenFlow 1.4+ can configure eviction via table_mod.
916 * (OpenFlow 1.4+ can also configure vacancy events via table_mod, but OVS
917 * doesn't support those yet and they're also logically a per-OpenFlow
918 * session setting so it wouldn't make sense to support them here anyway.)
920 if (!strcmp(setting
, "controller")) {
921 tm
->miss
= OFPUTIL_TABLE_MISS_CONTROLLER
;
922 *usable_versions
= (1u << OFP11_VERSION
) | (1u << OFP12_VERSION
);
923 } else if (!strcmp(setting
, "continue")) {
924 tm
->miss
= OFPUTIL_TABLE_MISS_CONTINUE
;
925 *usable_versions
= (1u << OFP11_VERSION
) | (1u << OFP12_VERSION
);
926 } else if (!strcmp(setting
, "drop")) {
927 tm
->miss
= OFPUTIL_TABLE_MISS_DROP
;
928 *usable_versions
= (1u << OFP11_VERSION
) | (1u << OFP12_VERSION
);
929 } else if (!strcmp(setting
, "evict")) {
930 tm
->eviction
= OFPUTIL_TABLE_EVICTION_ON
;
931 *usable_versions
= (1 << OFP14_VERSION
) | (1u << OFP15_VERSION
);
932 } else if (!strcmp(setting
, "noevict")) {
933 tm
->eviction
= OFPUTIL_TABLE_EVICTION_OFF
;
934 *usable_versions
= (1 << OFP14_VERSION
) | (1u << OFP15_VERSION
);
936 return xasprintf("invalid table_mod setting %s", setting
);
939 if (tm
->table_id
== 0xfe
940 && tm
->miss
== OFPUTIL_TABLE_MISS_CONTINUE
) {
941 return xstrdup("last table's flow miss handling can not be continue");
948 /* Opens file 'file_name' and reads each line as a flow_mod of the specified
949 * type (one of OFPFC_*). Stores each flow_mod in '*fm', an array allocated
950 * on the caller's behalf, and the number of flow_mods in '*n_fms'.
952 * If 'command' is given as -2, each line may start with a command name
953 * ("add", "modify", "delete", "modify_strict", or "delete_strict"). A missing
954 * command name is treated as "add".
956 * Returns NULL if successful, otherwise a malloc()'d string describing the
957 * error. The caller is responsible for freeing the returned string. */
958 char * OVS_WARN_UNUSED_RESULT
959 parse_ofp_flow_mod_file(const char *file_name
, int command
,
960 struct ofputil_flow_mod
**fms
, size_t *n_fms
,
961 enum ofputil_protocol
*usable_protocols
)
963 size_t allocated_fms
;
968 *usable_protocols
= OFPUTIL_P_ANY
;
973 stream
= !strcmp(file_name
, "-") ? stdin
: fopen(file_name
, "r");
974 if (stream
== NULL
) {
975 return xasprintf("%s: open failed (%s)",
976 file_name
, ovs_strerror(errno
));
979 allocated_fms
= *n_fms
;
982 while (!ds_get_preprocessed_line(&s
, stream
, &line_number
)) {
984 enum ofputil_protocol usable
;
986 if (*n_fms
>= allocated_fms
) {
987 *fms
= x2nrealloc(*fms
, &allocated_fms
, sizeof **fms
);
989 error
= parse_ofp_flow_mod_str(&(*fms
)[*n_fms
], ds_cstr(&s
), command
,
994 for (i
= 0; i
< *n_fms
; i
++) {
995 free(CONST_CAST(struct ofpact
*, (*fms
)[i
].ofpacts
));
1002 if (stream
!= stdin
) {
1006 return xasprintf("%s:%d: %s", file_name
, line_number
, error
);
1008 *usable_protocols
&= usable
; /* Each line can narrow the set. */
1013 if (stream
!= stdin
) {
1019 char * OVS_WARN_UNUSED_RESULT
1020 parse_ofp_flow_stats_request_str(struct ofputil_flow_stats_request
*fsr
,
1021 bool aggregate
, const char *string
,
1022 enum ofputil_protocol
*usable_protocols
)
1024 struct ofputil_flow_mod fm
;
1027 error
= parse_ofp_str(&fm
, -1, string
, usable_protocols
);
1032 /* Special table ID support not required for stats requests. */
1033 if (*usable_protocols
& OFPUTIL_P_OF10_STD_TID
) {
1034 *usable_protocols
|= OFPUTIL_P_OF10_STD
;
1036 if (*usable_protocols
& OFPUTIL_P_OF10_NXM_TID
) {
1037 *usable_protocols
|= OFPUTIL_P_OF10_NXM
;
1040 fsr
->aggregate
= aggregate
;
1041 fsr
->cookie
= fm
.cookie
;
1042 fsr
->cookie_mask
= fm
.cookie_mask
;
1043 fsr
->match
= fm
.match
;
1044 fsr
->out_port
= fm
.out_port
;
1045 fsr
->out_group
= fm
.out_group
;
1046 fsr
->table_id
= fm
.table_id
;
1050 /* Parses a specification of a flow from 's' into 'flow'. 's' must take the
1051 * form FIELD=VALUE[,FIELD=VALUE]... where each FIELD is the name of a
1052 * mf_field. Fields must be specified in a natural order for satisfying
1053 * prerequisites. If 'mask' is specified, fills the mask field for each of the
1054 * field specified in flow. If the map, 'names_portno' is specfied, converts
1055 * the in_port name into port no while setting the 'flow'.
1057 * Returns NULL on success, otherwise a malloc()'d string that explains the
1060 parse_ofp_exact_flow(struct flow
*flow
, struct flow
*mask
, const char *s
,
1061 const struct simap
*portno_names
)
1063 char *pos
, *key
, *value_s
;
1067 memset(flow
, 0, sizeof *flow
);
1069 memset(mask
, 0, sizeof *mask
);
1072 pos
= copy
= xstrdup(s
);
1073 while (ofputil_parse_key_value(&pos
, &key
, &value_s
)) {
1074 const struct protocol
*p
;
1075 if (parse_protocol(key
, &p
)) {
1076 if (flow
->dl_type
) {
1077 error
= xasprintf("%s: Ethernet type set multiple times", s
);
1080 flow
->dl_type
= htons(p
->dl_type
);
1082 mask
->dl_type
= OVS_BE16_MAX
;
1086 if (flow
->nw_proto
) {
1087 error
= xasprintf("%s: network protocol set "
1088 "multiple times", s
);
1091 flow
->nw_proto
= p
->nw_proto
;
1093 mask
->nw_proto
= UINT8_MAX
;
1097 const struct mf_field
*mf
;
1098 union mf_value value
;
1101 mf
= mf_from_name(key
);
1103 error
= xasprintf("%s: unknown field %s", s
, key
);
1107 if (!mf_are_prereqs_ok(mf
, flow
)) {
1108 error
= xasprintf("%s: prerequisites not met for setting %s",
1113 if (mf_is_set(mf
, flow
)) {
1114 error
= xasprintf("%s: field %s set multiple times", s
, key
);
1118 if (!strcmp(key
, "in_port")
1120 && simap_contains(portno_names
, value_s
)) {
1121 flow
->in_port
.ofp_port
= u16_to_ofp(
1122 simap_get(portno_names
, value_s
));
1124 mask
->in_port
.ofp_port
= u16_to_ofp(ntohs(OVS_BE16_MAX
));
1127 field_error
= mf_parse_value(mf
, value_s
, &value
);
1129 error
= xasprintf("%s: bad value for %s (%s)",
1130 s
, key
, field_error
);
1135 mf_set_flow_value(mf
, &value
, flow
);
1137 mf_mask_field(mf
, mask
);
1143 if (!flow
->in_port
.ofp_port
) {
1144 flow
->in_port
.ofp_port
= OFPP_NONE
;
1151 memset(flow
, 0, sizeof *flow
);
1153 memset(mask
, 0, sizeof *mask
);
1159 static char * OVS_WARN_UNUSED_RESULT
1160 parse_bucket_str(struct ofputil_bucket
*bucket
, char *str_
, uint8_t group_type
,
1161 enum ofputil_protocol
*usable_protocols
)
1163 char *pos
, *key
, *value
;
1164 struct ofpbuf ofpacts
;
1168 bucket
->weight
= group_type
== OFPGT11_SELECT
? 1 : 0;
1169 bucket
->bucket_id
= OFPG15_BUCKET_ALL
;
1170 bucket
->watch_port
= OFPP_ANY
;
1171 bucket
->watch_group
= OFPG11_ANY
;
1177 while (ofputil_parse_key_value(&pos
, &key
, &value
)) {
1178 if (!strcasecmp(key
, "weight")) {
1179 error
= str_to_u16(value
, "weight", &bucket
->weight
);
1180 } else if (!strcasecmp(key
, "watch_port")) {
1181 if (!ofputil_port_from_string(value
, &bucket
->watch_port
)
1182 || (ofp_to_u16(bucket
->watch_port
) >= ofp_to_u16(OFPP_MAX
)
1183 && bucket
->watch_port
!= OFPP_ANY
)) {
1184 error
= xasprintf("%s: invalid watch_port", value
);
1186 } else if (!strcasecmp(key
, "watch_group")) {
1187 error
= str_to_u32(value
, &bucket
->watch_group
);
1188 if (!error
&& bucket
->watch_group
> OFPG_MAX
) {
1189 error
= xasprintf("invalid watch_group id %"PRIu32
,
1190 bucket
->watch_group
);
1192 } else if (!strcasecmp(key
, "bucket_id")) {
1193 error
= str_to_u32(value
, &bucket
->bucket_id
);
1194 if (!error
&& bucket
->bucket_id
> OFPG15_BUCKET_MAX
) {
1195 error
= xasprintf("invalid bucket_id id %"PRIu32
,
1198 *usable_protocols
&= OFPUTIL_P_OF15_UP
;
1199 } else if (!strcasecmp(key
, "action") || !strcasecmp(key
, "actions")) {
1200 ds_put_format(&actions
, "%s,", value
);
1202 ds_put_format(&actions
, "%s(%s),", key
, value
);
1206 ds_destroy(&actions
);
1211 if (!actions
.length
) {
1212 return xstrdup("bucket must specify actions");
1214 ds_chomp(&actions
, ',');
1216 ofpbuf_init(&ofpacts
, 0);
1217 error
= ofpacts_parse_actions(ds_cstr(&actions
), &ofpacts
,
1219 ds_destroy(&actions
);
1221 ofpbuf_uninit(&ofpacts
);
1224 bucket
->ofpacts
= ofpacts
.data
;
1225 bucket
->ofpacts_len
= ofpacts
.size
;
1230 static char * OVS_WARN_UNUSED_RESULT
1231 parse_select_group_field(char *s
, struct field_array
*fa
,
1232 enum ofputil_protocol
*usable_protocols
)
1234 char *save_ptr
= NULL
;
1237 for (name
= strtok_r(s
, "=, \t\r\n", &save_ptr
); name
;
1238 name
= strtok_r(NULL
, "=, \t\r\n", &save_ptr
)) {
1239 const struct mf_field
*mf
= mf_from_name(name
);
1243 const char *value_str
;
1244 union mf_value value
;
1246 if (bitmap_is_set(fa
->used
.bm
, mf
->id
)) {
1247 return xasprintf("%s: duplicate field", name
);
1250 value_str
= strtok_r(NULL
, ", \t\r\n", &save_ptr
);
1252 error
= mf_parse_value(mf
, value_str
, &value
);
1257 /* The mask cannot be all-zeros */
1258 if (!mf_is_tun_metadata(mf
) &&
1259 is_all_zeros(&value
, mf
->n_bytes
)) {
1260 return xasprintf("%s: values are wildcards here "
1261 "and must not be all-zeros", s
);
1264 /* The values parsed are masks for fields used
1265 * by the selection method */
1266 if (!mf_is_mask_valid(mf
, &value
)) {
1267 return xasprintf("%s: invalid mask for field %s",
1268 value_str
, mf
->name
);
1271 memset(&value
, 0xff, mf
->n_bytes
);
1274 field_array_set(mf
->id
, &value
, fa
);
1276 if (is_all_ones(&value
, mf
->n_bytes
)) {
1277 *usable_protocols
&= mf
->usable_protocols_exact
;
1278 } else if (mf
->usable_protocols_bitwise
== mf
->usable_protocols_cidr
1279 || ip_is_cidr(value
.be32
)) {
1280 *usable_protocols
&= mf
->usable_protocols_cidr
;
1282 *usable_protocols
&= mf
->usable_protocols_bitwise
;
1285 return xasprintf("%s: unknown field %s", s
, name
);
1292 static char * OVS_WARN_UNUSED_RESULT
1293 parse_ofp_group_mod_str__(struct ofputil_group_mod
*gm
, uint16_t command
,
1295 enum ofputil_protocol
*usable_protocols
)
1298 F_GROUP_TYPE
= 1 << 0,
1300 F_COMMAND_BUCKET_ID
= 1 << 2,
1301 F_COMMAND_BUCKET_ID_ALL
= 1 << 3,
1303 char *save_ptr
= NULL
;
1304 bool had_type
= false;
1305 bool had_command_bucket_id
= false;
1307 struct ofputil_bucket
*bucket
;
1310 *usable_protocols
= OFPUTIL_P_OF11_UP
;
1314 fields
= F_GROUP_TYPE
| F_BUCKETS
;
1317 case OFPGC11_DELETE
:
1321 case OFPGC11_MODIFY
:
1322 fields
= F_GROUP_TYPE
| F_BUCKETS
;
1325 case OFPGC15_INSERT_BUCKET
:
1326 fields
= F_BUCKETS
| F_COMMAND_BUCKET_ID
;
1327 *usable_protocols
&= OFPUTIL_P_OF15_UP
;
1330 case OFPGC15_REMOVE_BUCKET
:
1331 fields
= F_COMMAND_BUCKET_ID
| F_COMMAND_BUCKET_ID_ALL
;
1332 *usable_protocols
&= OFPUTIL_P_OF15_UP
;
1339 memset(gm
, 0, sizeof *gm
);
1340 gm
->command
= command
;
1341 gm
->group_id
= OFPG_ANY
;
1342 gm
->command_bucket_id
= OFPG15_BUCKET_ALL
;
1343 list_init(&gm
->buckets
);
1344 if (command
== OFPGC11_DELETE
&& string
[0] == '\0') {
1345 gm
->group_id
= OFPG_ALL
;
1349 *usable_protocols
= OFPUTIL_P_OF11_UP
;
1351 /* Strip the buckets off the end of 'string', if there are any, saving a
1352 * pointer for later. We want to parse the buckets last because the bucket
1353 * type influences bucket defaults. */
1354 char *bkt_str
= strstr(string
, "bucket=");
1356 if (!(fields
& F_BUCKETS
)) {
1357 error
= xstrdup("bucket is not needed");
1363 /* Parse everything before the buckets. */
1364 for (name
= strtok_r(string
, "=, \t\r\n", &save_ptr
); name
;
1365 name
= strtok_r(NULL
, "=, \t\r\n", &save_ptr
)) {
1368 value
= strtok_r(NULL
, ", \t\r\n", &save_ptr
);
1370 error
= xasprintf("field %s missing value", name
);
1374 if (!strcmp(name
, "command_bucket_id")) {
1375 if (!(fields
& F_COMMAND_BUCKET_ID
)) {
1376 error
= xstrdup("command bucket id is not needed");
1379 if (!strcmp(value
, "all")) {
1380 gm
->command_bucket_id
= OFPG15_BUCKET_ALL
;
1381 } else if (!strcmp(value
, "first")) {
1382 gm
->command_bucket_id
= OFPG15_BUCKET_FIRST
;
1383 } else if (!strcmp(value
, "last")) {
1384 gm
->command_bucket_id
= OFPG15_BUCKET_LAST
;
1386 error
= str_to_u32(value
, &gm
->command_bucket_id
);
1390 if (gm
->command_bucket_id
> OFPG15_BUCKET_MAX
1391 && (gm
->command_bucket_id
!= OFPG15_BUCKET_FIRST
1392 && gm
->command_bucket_id
!= OFPG15_BUCKET_LAST
1393 && gm
->command_bucket_id
!= OFPG15_BUCKET_ALL
)) {
1394 error
= xasprintf("invalid command bucket id %"PRIu32
,
1395 gm
->command_bucket_id
);
1399 if (gm
->command_bucket_id
== OFPG15_BUCKET_ALL
1400 && !(fields
& F_COMMAND_BUCKET_ID_ALL
)) {
1401 error
= xstrdup("command_bucket_id=all is not permitted");
1404 had_command_bucket_id
= true;
1405 } else if (!strcmp(name
, "group_id")) {
1406 if(!strcmp(value
, "all")) {
1407 gm
->group_id
= OFPG_ALL
;
1409 error
= str_to_u32(value
, &gm
->group_id
);
1413 if (gm
->group_id
!= OFPG_ALL
&& gm
->group_id
> OFPG_MAX
) {
1414 error
= xasprintf("invalid group id %"PRIu32
,
1419 } else if (!strcmp(name
, "type")){
1420 if (!(fields
& F_GROUP_TYPE
)) {
1421 error
= xstrdup("type is not needed");
1424 if (!strcmp(value
, "all")) {
1425 gm
->type
= OFPGT11_ALL
;
1426 } else if (!strcmp(value
, "select")) {
1427 gm
->type
= OFPGT11_SELECT
;
1428 } else if (!strcmp(value
, "indirect")) {
1429 gm
->type
= OFPGT11_INDIRECT
;
1430 } else if (!strcmp(value
, "ff") ||
1431 !strcmp(value
, "fast_failover")) {
1432 gm
->type
= OFPGT11_FF
;
1434 error
= xasprintf("invalid group type %s", value
);
1438 } else if (!strcmp(name
, "selection_method")) {
1439 if (!(fields
& F_GROUP_TYPE
)) {
1440 error
= xstrdup("selection method is not needed");
1443 if (strlen(value
) >= NTR_MAX_SELECTION_METHOD_LEN
) {
1444 error
= xasprintf("selection method is longer than %u"
1446 NTR_MAX_SELECTION_METHOD_LEN
- 1);
1449 memset(gm
->props
.selection_method
, '\0',
1450 NTR_MAX_SELECTION_METHOD_LEN
);
1451 strcpy(gm
->props
.selection_method
, value
);
1452 *usable_protocols
&= OFPUTIL_P_OF15_UP
;
1453 } else if (!strcmp(name
, "selection_method_param")) {
1454 if (!(fields
& F_GROUP_TYPE
)) {
1455 error
= xstrdup("selection method param is not needed");
1458 error
= str_to_u64(value
, &gm
->props
.selection_method_param
);
1462 *usable_protocols
&= OFPUTIL_P_OF15_UP
;
1463 } else if (!strcmp(name
, "fields")) {
1464 if (!(fields
& F_GROUP_TYPE
)) {
1465 error
= xstrdup("fields are not needed");
1468 error
= parse_select_group_field(value
, &gm
->props
.fields
,
1473 *usable_protocols
&= OFPUTIL_P_OF15_UP
;
1475 error
= xasprintf("unknown keyword %s", name
);
1479 if (gm
->group_id
== OFPG_ANY
) {
1480 error
= xstrdup("must specify a group_id");
1483 if (fields
& F_GROUP_TYPE
&& !had_type
) {
1484 error
= xstrdup("must specify a type");
1488 if (fields
& F_COMMAND_BUCKET_ID
) {
1489 if (!(fields
& F_COMMAND_BUCKET_ID_ALL
|| had_command_bucket_id
)) {
1490 error
= xstrdup("must specify a command bucket id");
1493 } else if (had_command_bucket_id
) {
1494 error
= xstrdup("command bucket id is not needed");
1498 /* Now parse the buckets, if any. */
1502 bkt_str
= strchr(bkt_str
+ 1, '=');
1504 error
= xstrdup("must specify bucket content");
1509 next_bkt_str
= strstr(bkt_str
, "bucket=");
1511 *next_bkt_str
= '\0';
1514 bucket
= xzalloc(sizeof(struct ofputil_bucket
));
1515 error
= parse_bucket_str(bucket
, bkt_str
, gm
->type
, usable_protocols
);
1520 list_push_back(&gm
->buckets
, &bucket
->list_node
);
1522 if (gm
->type
!= OFPGT11_SELECT
&& bucket
->weight
) {
1523 error
= xstrdup("Only select groups can have bucket weights.");
1527 bkt_str
= next_bkt_str
;
1529 if (gm
->type
== OFPGT11_INDIRECT
&& !list_is_short(&gm
->buckets
)) {
1530 error
= xstrdup("Indirect groups can have at most one bucket.");
1536 ofputil_bucket_list_destroy(&gm
->buckets
);
1540 char * OVS_WARN_UNUSED_RESULT
1541 parse_ofp_group_mod_str(struct ofputil_group_mod
*gm
, uint16_t command
,
1543 enum ofputil_protocol
*usable_protocols
)
1545 char *string
= xstrdup(str_
);
1546 char *error
= parse_ofp_group_mod_str__(gm
, command
, string
,
1551 ofputil_bucket_list_destroy(&gm
->buckets
);
1556 char * OVS_WARN_UNUSED_RESULT
1557 parse_ofp_group_mod_file(const char *file_name
, uint16_t command
,
1558 struct ofputil_group_mod
**gms
, size_t *n_gms
,
1559 enum ofputil_protocol
*usable_protocols
)
1561 size_t allocated_gms
;
1569 stream
= !strcmp(file_name
, "-") ? stdin
: fopen(file_name
, "r");
1570 if (stream
== NULL
) {
1571 return xasprintf("%s: open failed (%s)",
1572 file_name
, ovs_strerror(errno
));
1575 allocated_gms
= *n_gms
;
1578 *usable_protocols
= OFPUTIL_P_OF11_UP
;
1579 while (!ds_get_preprocessed_line(&s
, stream
, &line_number
)) {
1580 enum ofputil_protocol usable
;
1583 if (*n_gms
>= allocated_gms
) {
1584 struct ofputil_group_mod
*new_gms
;
1587 new_gms
= x2nrealloc(*gms
, &allocated_gms
, sizeof **gms
);
1588 for (i
= 0; i
< *n_gms
; i
++) {
1589 list_moved(&new_gms
[i
].buckets
, &(*gms
)[i
].buckets
);
1593 error
= parse_ofp_group_mod_str(&(*gms
)[*n_gms
], command
, ds_cstr(&s
),
1598 for (i
= 0; i
< *n_gms
; i
++) {
1599 ofputil_bucket_list_destroy(&(*gms
)[i
].buckets
);
1606 if (stream
!= stdin
) {
1610 return xasprintf("%s:%d: %s", file_name
, line_number
, error
);
1612 *usable_protocols
&= usable
;
1617 if (stream
!= stdin
) {
1623 char * OVS_WARN_UNUSED_RESULT
1624 parse_ofp_geneve_table_mod_str(struct ofputil_geneve_table_mod
*gtm
,
1625 uint16_t command
, const char *s
,
1626 enum ofputil_protocol
*usable_protocols
)
1628 *usable_protocols
= OFPUTIL_P_NXM_OXM_ANY
;
1630 gtm
->command
= command
;
1631 list_init(>m
->mappings
);
1634 struct ofputil_geneve_map
*map
= xmalloc(sizeof *map
);
1641 list_push_back(>m
->mappings
, &map
->list_node
);
1643 if (!ovs_scan(s
, "{class=%"SCNi16
",type=%"SCNi8
",len=%"SCNi8
"}->tun_metadata%"SCNi16
"%n",
1644 &map
->option_class
, &map
->option_type
, &map
->option_len
,
1646 ofputil_uninit_geneve_table(>m
->mappings
);
1647 return xstrdup("invalid geneve mapping");