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. */
371 value
= strtok_r(NULL
, ", \t\r\n", &save_ptr
);
373 return xasprintf("field %s missing value", name
);
376 if (!strcmp(name
, "table")) {
377 error
= str_to_u8(value
, "table", &fm
->table_id
);
378 if (fm
->table_id
!= 0xff) {
379 *usable_protocols
&= OFPUTIL_P_TID
;
381 } else if (fields
& F_OUT_PORT
&& !strcmp(name
, "out_port")) {
382 if (!ofputil_port_from_string(value
, &fm
->out_port
)) {
383 error
= xasprintf("%s is not a valid OpenFlow port",
386 } else if (fields
& F_PRIORITY
&& !strcmp(name
, "priority")) {
387 uint16_t priority
= 0;
389 error
= str_to_u16(value
, name
, &priority
);
390 fm
->priority
= priority
;
391 } else if (fields
& F_TIMEOUT
&& !strcmp(name
, "idle_timeout")) {
392 error
= str_to_u16(value
, name
, &fm
->idle_timeout
);
393 } else if (fields
& F_TIMEOUT
&& !strcmp(name
, "hard_timeout")) {
394 error
= str_to_u16(value
, name
, &fm
->hard_timeout
);
395 } else if (fields
& F_IMPORTANCE
&& !strcmp(name
, "importance")) {
396 error
= str_to_u16(value
, name
, &fm
->importance
);
397 } else if (!strcmp(name
, "cookie")) {
398 char *mask
= strchr(value
, '/');
401 /* A mask means we're searching for a cookie. */
402 if (command
== OFPFC_ADD
) {
403 return xstrdup("flow additions cannot use "
407 error
= str_to_be64(value
, &fm
->cookie
);
411 error
= str_to_be64(mask
+ 1, &fm
->cookie_mask
);
413 /* Matching of the cookie is only supported through NXM or
415 if (fm
->cookie_mask
!= htonll(0)) {
416 *usable_protocols
&= OFPUTIL_P_NXM_OF11_UP
;
419 /* No mask means that the cookie is being set. */
420 if (command
!= OFPFC_ADD
&& command
!= OFPFC_MODIFY
421 && command
!= OFPFC_MODIFY_STRICT
) {
422 return xstrdup("cannot set cookie");
424 error
= str_to_be64(value
, &fm
->new_cookie
);
425 fm
->modify_cookie
= true;
427 } else if (mf_from_name(name
)) {
428 error
= parse_field(mf_from_name(name
), value
, &fm
->match
,
430 } else if (!strcmp(name
, "duration")
431 || !strcmp(name
, "n_packets")
432 || !strcmp(name
, "n_bytes")
433 || !strcmp(name
, "idle_age")
434 || !strcmp(name
, "hard_age")) {
435 /* Ignore these, so that users can feed the output of
436 * "ovs-ofctl dump-flows" back into commands that parse
439 error
= xasprintf("unknown keyword %s", name
);
447 /* Check for usable protocol interdependencies between match fields. */
448 if (fm
->match
.flow
.dl_type
== htons(ETH_TYPE_IPV6
)) {
449 const struct flow_wildcards
*wc
= &fm
->match
.wc
;
450 /* Only NXM and OXM support matching L3 and L4 fields within IPv6.
452 * (IPv6 specific fields as well as arp_sha, arp_tha, nw_frag, and
453 * nw_ttl are covered elsewhere so they don't need to be included in
456 if (wc
->masks
.nw_proto
|| wc
->masks
.nw_tos
457 || wc
->masks
.tp_src
|| wc
->masks
.tp_dst
) {
458 *usable_protocols
&= OFPUTIL_P_NXM_OXM_ANY
;
461 if (!fm
->cookie_mask
&& fm
->new_cookie
== OVS_BE64_MAX
462 && (command
== OFPFC_MODIFY
|| command
== OFPFC_MODIFY_STRICT
)) {
463 /* On modifies without a mask, we are supposed to add a flow if
464 * one does not exist. If a cookie wasn't been specified, use a
465 * default of zero. */
466 fm
->new_cookie
= htonll(0);
468 if (fields
& F_ACTIONS
) {
469 enum ofputil_protocol action_usable_protocols
;
470 struct ofpbuf ofpacts
;
473 ofpbuf_init(&ofpacts
, 32);
474 error
= ofpacts_parse_instructions(act_str
, &ofpacts
,
475 &action_usable_protocols
);
476 *usable_protocols
&= action_usable_protocols
;
480 err
= ofpacts_check(ofpacts
.data
, ofpacts
.size
, &fm
->match
.flow
,
481 OFPP_MAX
, fm
->table_id
, 255, usable_protocols
);
482 if (!err
&& !*usable_protocols
) {
483 err
= OFPERR_OFPBAC_MATCH_INCONSISTENT
;
486 error
= xasprintf("actions are invalid with specified match "
487 "(%s)", ofperr_to_string(err
));
492 ofpbuf_uninit(&ofpacts
);
496 fm
->ofpacts_len
= ofpacts
.size
;
497 fm
->ofpacts
= ofpbuf_steal_data(&ofpacts
);
506 /* Convert 'str_' (as described in the Flow Syntax section of the ovs-ofctl man
507 * page) into 'fm' for sending the specified flow_mod 'command' to a switch.
508 * Returns the set of usable protocols in '*usable_protocols'.
510 * To parse syntax for an OFPT_FLOW_MOD (or NXT_FLOW_MOD), use an OFPFC_*
511 * constant for 'command'. To parse syntax for an OFPST_FLOW or
512 * OFPST_AGGREGATE (or NXST_FLOW or NXST_AGGREGATE), use -1 for 'command'.
514 * If 'command' is given as -2, 'str_' may begin with a command name ("add",
515 * "modify", "delete", "modify_strict", or "delete_strict"). A missing command
516 * name is treated as "add".
518 * Returns NULL if successful, otherwise a malloc()'d string describing the
519 * error. The caller is responsible for freeing the returned string. */
520 char * OVS_WARN_UNUSED_RESULT
521 parse_ofp_str(struct ofputil_flow_mod
*fm
, int command
, const char *str_
,
522 enum ofputil_protocol
*usable_protocols
)
524 char *string
= xstrdup(str_
);
527 error
= parse_ofp_str__(fm
, command
, string
, usable_protocols
);
537 static char * OVS_WARN_UNUSED_RESULT
538 parse_ofp_meter_mod_str__(struct ofputil_meter_mod
*mm
, char *string
,
539 struct ofpbuf
*bands
, int command
,
540 enum ofputil_protocol
*usable_protocols
)
547 char *save_ptr
= NULL
;
548 char *band_str
= NULL
;
551 /* Meters require at least OF 1.3. */
552 *usable_protocols
= OFPUTIL_P_OF13_UP
;
560 fields
= F_METER
| F_FLAGS
| F_BANDS
;
568 fields
= F_METER
| F_FLAGS
| F_BANDS
;
575 mm
->command
= command
;
576 mm
->meter
.meter_id
= 0;
578 if (fields
& F_BANDS
) {
579 band_str
= strstr(string
, "band");
581 return xstrdup("must specify bands");
585 band_str
= strchr(band_str
+ 1, '=');
587 return xstrdup("must specify bands");
592 for (name
= strtok_r(string
, "=, \t\r\n", &save_ptr
); name
;
593 name
= strtok_r(NULL
, "=, \t\r\n", &save_ptr
)) {
595 if (fields
& F_FLAGS
&& !strcmp(name
, "kbps")) {
596 mm
->meter
.flags
|= OFPMF13_KBPS
;
597 } else if (fields
& F_FLAGS
&& !strcmp(name
, "pktps")) {
598 mm
->meter
.flags
|= OFPMF13_PKTPS
;
599 } else if (fields
& F_FLAGS
&& !strcmp(name
, "burst")) {
600 mm
->meter
.flags
|= OFPMF13_BURST
;
601 } else if (fields
& F_FLAGS
&& !strcmp(name
, "stats")) {
602 mm
->meter
.flags
|= OFPMF13_STATS
;
606 value
= strtok_r(NULL
, ", \t\r\n", &save_ptr
);
608 return xasprintf("field %s missing value", name
);
611 if (!strcmp(name
, "meter")) {
612 if (!strcmp(value
, "all")) {
613 mm
->meter
.meter_id
= OFPM13_ALL
;
614 } else if (!strcmp(value
, "controller")) {
615 mm
->meter
.meter_id
= OFPM13_CONTROLLER
;
616 } else if (!strcmp(value
, "slowpath")) {
617 mm
->meter
.meter_id
= OFPM13_SLOWPATH
;
619 char *error
= str_to_u32(value
, &mm
->meter
.meter_id
);
623 if (mm
->meter
.meter_id
> OFPM13_MAX
624 || !mm
->meter
.meter_id
) {
625 return xasprintf("invalid value for %s", name
);
629 return xasprintf("unknown keyword %s", name
);
633 if (fields
& F_METER
&& !mm
->meter
.meter_id
) {
634 return xstrdup("must specify 'meter'");
636 if (fields
& F_FLAGS
&& !mm
->meter
.flags
) {
637 return xstrdup("meter must specify either 'kbps' or 'pktps'");
640 if (fields
& F_BANDS
) {
641 uint16_t n_bands
= 0;
642 struct ofputil_meter_band
*band
= NULL
;
645 for (name
= strtok_r(band_str
, "=, \t\r\n", &save_ptr
); name
;
646 name
= strtok_r(NULL
, "=, \t\r\n", &save_ptr
)) {
650 value
= strtok_r(NULL
, ", \t\r\n", &save_ptr
);
652 return xasprintf("field %s missing value", name
);
655 if (!strcmp(name
, "type")) {
656 /* Start a new band */
657 band
= ofpbuf_put_zeros(bands
, sizeof *band
);
660 if (!strcmp(value
, "drop")) {
661 band
->type
= OFPMBT13_DROP
;
662 } else if (!strcmp(value
, "dscp_remark")) {
663 band
->type
= OFPMBT13_DSCP_REMARK
;
665 return xasprintf("field %s unknown value %s", name
, value
);
667 } else if (!band
|| !band
->type
) {
668 return xstrdup("band must start with the 'type' keyword");
669 } else if (!strcmp(name
, "rate")) {
670 char *error
= str_to_u32(value
, &band
->rate
);
674 } else if (!strcmp(name
, "burst_size")) {
675 char *error
= str_to_u32(value
, &band
->burst_size
);
679 } else if (!strcmp(name
, "prec_level")) {
680 char *error
= str_to_u8(value
, name
, &band
->prec_level
);
685 return xasprintf("unknown keyword %s", name
);
690 return xstrdup("meter must have bands");
693 mm
->meter
.n_bands
= n_bands
;
694 mm
->meter
.bands
= ofpbuf_steal_data(bands
);
696 for (i
= 0; i
< n_bands
; ++i
) {
697 band
= &mm
->meter
.bands
[i
];
700 return xstrdup("band must have 'type'");
702 if (band
->type
== OFPMBT13_DSCP_REMARK
) {
703 if (!band
->prec_level
) {
704 return xstrdup("'dscp_remark' band must have"
708 if (band
->prec_level
) {
709 return xstrdup("Only 'dscp_remark' band may have"
714 return xstrdup("band must have 'rate'");
716 if (mm
->meter
.flags
& OFPMF13_BURST
) {
717 if (!band
->burst_size
) {
718 return xstrdup("band must have 'burst_size' "
719 "when 'burst' flag is set");
722 if (band
->burst_size
) {
723 return xstrdup("band may have 'burst_size' only "
724 "when 'burst' flag is set");
729 mm
->meter
.n_bands
= 0;
730 mm
->meter
.bands
= NULL
;
736 /* Convert 'str_' (as described in the Flow Syntax section of the ovs-ofctl man
737 * page) into 'mm' for sending the specified meter_mod 'command' to a switch.
739 * Returns NULL if successful, otherwise a malloc()'d string describing the
740 * error. The caller is responsible for freeing the returned string. */
741 char * OVS_WARN_UNUSED_RESULT
742 parse_ofp_meter_mod_str(struct ofputil_meter_mod
*mm
, const char *str_
,
743 int command
, enum ofputil_protocol
*usable_protocols
)
749 ofpbuf_init(&bands
, 64);
750 string
= xstrdup(str_
);
752 error
= parse_ofp_meter_mod_str__(mm
, string
, &bands
, command
,
756 ofpbuf_uninit(&bands
);
761 static char * OVS_WARN_UNUSED_RESULT
762 parse_flow_monitor_request__(struct ofputil_flow_monitor_request
*fmr
,
763 const char *str_
, char *string
,
764 enum ofputil_protocol
*usable_protocols
)
766 static atomic_count id
= ATOMIC_COUNT_INIT(0);
767 char *save_ptr
= NULL
;
770 fmr
->id
= atomic_count_inc(&id
);
772 fmr
->flags
= (NXFMF_INITIAL
| NXFMF_ADD
| NXFMF_DELETE
| NXFMF_MODIFY
773 | NXFMF_OWN
| NXFMF_ACTIONS
);
774 fmr
->out_port
= OFPP_NONE
;
775 fmr
->table_id
= 0xff;
776 match_init_catchall(&fmr
->match
);
778 for (name
= strtok_r(string
, "=, \t\r\n", &save_ptr
); name
;
779 name
= strtok_r(NULL
, "=, \t\r\n", &save_ptr
)) {
780 const struct protocol
*p
;
782 if (!strcmp(name
, "!initial")) {
783 fmr
->flags
&= ~NXFMF_INITIAL
;
784 } else if (!strcmp(name
, "!add")) {
785 fmr
->flags
&= ~NXFMF_ADD
;
786 } else if (!strcmp(name
, "!delete")) {
787 fmr
->flags
&= ~NXFMF_DELETE
;
788 } else if (!strcmp(name
, "!modify")) {
789 fmr
->flags
&= ~NXFMF_MODIFY
;
790 } else if (!strcmp(name
, "!actions")) {
791 fmr
->flags
&= ~NXFMF_ACTIONS
;
792 } else if (!strcmp(name
, "!own")) {
793 fmr
->flags
&= ~NXFMF_OWN
;
794 } else if (parse_protocol(name
, &p
)) {
795 match_set_dl_type(&fmr
->match
, htons(p
->dl_type
));
797 match_set_nw_proto(&fmr
->match
, p
->nw_proto
);
802 value
= strtok_r(NULL
, ", \t\r\n", &save_ptr
);
804 return xasprintf("%s: field %s missing value", str_
, name
);
807 if (!strcmp(name
, "table")) {
808 char *error
= str_to_u8(value
, "table", &fmr
->table_id
);
812 } else if (!strcmp(name
, "out_port")) {
813 fmr
->out_port
= u16_to_ofp(atoi(value
));
814 } else if (mf_from_name(name
)) {
817 error
= parse_field(mf_from_name(name
), value
, &fmr
->match
,
823 return xasprintf("%s: unknown keyword %s", str_
, name
);
830 /* Convert 'str_' (as described in the documentation for the "monitor" command
831 * in the ovs-ofctl man page) into 'fmr'.
833 * Returns NULL if successful, otherwise a malloc()'d string describing the
834 * error. The caller is responsible for freeing the returned string. */
835 char * OVS_WARN_UNUSED_RESULT
836 parse_flow_monitor_request(struct ofputil_flow_monitor_request
*fmr
,
838 enum ofputil_protocol
*usable_protocols
)
840 char *string
= xstrdup(str_
);
841 char *error
= parse_flow_monitor_request__(fmr
, str_
, string
,
847 /* Parses 'string' as an OFPT_FLOW_MOD or NXT_FLOW_MOD with command 'command'
848 * (one of OFPFC_*) into 'fm'.
850 * If 'command' is given as -2, 'string' may begin with a command name ("add",
851 * "modify", "delete", "modify_strict", or "delete_strict"). A missing command
852 * name is treated as "add".
854 * Returns NULL if successful, otherwise a malloc()'d string describing the
855 * error. The caller is responsible for freeing the returned string. */
856 char * OVS_WARN_UNUSED_RESULT
857 parse_ofp_flow_mod_str(struct ofputil_flow_mod
*fm
, const char *string
,
859 enum ofputil_protocol
*usable_protocols
)
861 char *error
= parse_ofp_str(fm
, command
, string
, usable_protocols
);
864 /* Normalize a copy of the match. This ensures that non-normalized
865 * flows get logged but doesn't affect what gets sent to the switch, so
866 * that the switch can do whatever it likes with the flow. */
867 struct match match_copy
= fm
->match
;
868 ofputil_normalize_match(&match_copy
);
874 /* Convert 'table_id' and 'setting' (as described for the "mod-table" command
875 * in the ovs-ofctl man page) into 'tm' for sending a table_mod command to a
878 * Stores a bitmap of the OpenFlow versions that are usable for 'tm' into
879 * '*usable_versions'.
881 * Returns NULL if successful, otherwise a malloc()'d string describing the
882 * error. The caller is responsible for freeing the returned string. */
883 char * OVS_WARN_UNUSED_RESULT
884 parse_ofp_table_mod(struct ofputil_table_mod
*tm
, const char *table_id
,
885 const char *setting
, uint32_t *usable_versions
)
887 *usable_versions
= 0;
888 if (!strcasecmp(table_id
, "all")) {
889 tm
->table_id
= OFPTT_ALL
;
891 char *error
= str_to_u8(table_id
, "table_id", &tm
->table_id
);
897 tm
->miss
= OFPUTIL_TABLE_MISS_DEFAULT
;
898 tm
->eviction
= OFPUTIL_TABLE_EVICTION_DEFAULT
;
899 tm
->eviction_flags
= UINT32_MAX
;
901 /* Only OpenFlow 1.1 and 1.2 can configure table-miss via table_mod.
902 * Only OpenFlow 1.4+ can configure eviction via table_mod.
904 * (OpenFlow 1.4+ can also configure vacancy events via table_mod, but OVS
905 * doesn't support those yet and they're also logically a per-OpenFlow
906 * session setting so it wouldn't make sense to support them here anyway.)
908 if (!strcmp(setting
, "controller")) {
909 tm
->miss
= OFPUTIL_TABLE_MISS_CONTROLLER
;
910 *usable_versions
= (1u << OFP11_VERSION
) | (1u << OFP12_VERSION
);
911 } else if (!strcmp(setting
, "continue")) {
912 tm
->miss
= OFPUTIL_TABLE_MISS_CONTINUE
;
913 *usable_versions
= (1u << OFP11_VERSION
) | (1u << OFP12_VERSION
);
914 } else if (!strcmp(setting
, "drop")) {
915 tm
->miss
= OFPUTIL_TABLE_MISS_DROP
;
916 *usable_versions
= (1u << OFP11_VERSION
) | (1u << OFP12_VERSION
);
917 } else if (!strcmp(setting
, "evict")) {
918 tm
->eviction
= OFPUTIL_TABLE_EVICTION_ON
;
919 *usable_versions
= (1 << OFP14_VERSION
) | (1u << OFP15_VERSION
);
920 } else if (!strcmp(setting
, "noevict")) {
921 tm
->eviction
= OFPUTIL_TABLE_EVICTION_OFF
;
922 *usable_versions
= (1 << OFP14_VERSION
) | (1u << OFP15_VERSION
);
924 return xasprintf("invalid table_mod setting %s", setting
);
927 if (tm
->table_id
== 0xfe
928 && tm
->miss
== OFPUTIL_TABLE_MISS_CONTINUE
) {
929 return xstrdup("last table's flow miss handling can not be continue");
936 /* Opens file 'file_name' and reads each line as a flow_mod of the specified
937 * type (one of OFPFC_*). Stores each flow_mod in '*fm', an array allocated
938 * on the caller's behalf, and the number of flow_mods in '*n_fms'.
940 * If 'command' is given as -2, each line may start with a command name
941 * ("add", "modify", "delete", "modify_strict", or "delete_strict"). A missing
942 * command name is treated as "add".
944 * Returns NULL if successful, otherwise a malloc()'d string describing the
945 * error. The caller is responsible for freeing the returned string. */
946 char * OVS_WARN_UNUSED_RESULT
947 parse_ofp_flow_mod_file(const char *file_name
, int command
,
948 struct ofputil_flow_mod
**fms
, size_t *n_fms
,
949 enum ofputil_protocol
*usable_protocols
)
951 size_t allocated_fms
;
956 *usable_protocols
= OFPUTIL_P_ANY
;
961 stream
= !strcmp(file_name
, "-") ? stdin
: fopen(file_name
, "r");
962 if (stream
== NULL
) {
963 return xasprintf("%s: open failed (%s)",
964 file_name
, ovs_strerror(errno
));
967 allocated_fms
= *n_fms
;
970 while (!ds_get_preprocessed_line(&s
, stream
, &line_number
)) {
972 enum ofputil_protocol usable
;
974 if (*n_fms
>= allocated_fms
) {
975 *fms
= x2nrealloc(*fms
, &allocated_fms
, sizeof **fms
);
977 error
= parse_ofp_flow_mod_str(&(*fms
)[*n_fms
], ds_cstr(&s
), command
,
982 for (i
= 0; i
< *n_fms
; i
++) {
983 free(CONST_CAST(struct ofpact
*, (*fms
)[i
].ofpacts
));
990 if (stream
!= stdin
) {
994 return xasprintf("%s:%d: %s", file_name
, line_number
, error
);
996 *usable_protocols
&= usable
; /* Each line can narrow the set. */
1001 if (stream
!= stdin
) {
1007 char * OVS_WARN_UNUSED_RESULT
1008 parse_ofp_flow_stats_request_str(struct ofputil_flow_stats_request
*fsr
,
1009 bool aggregate
, const char *string
,
1010 enum ofputil_protocol
*usable_protocols
)
1012 struct ofputil_flow_mod fm
;
1015 error
= parse_ofp_str(&fm
, -1, string
, usable_protocols
);
1020 /* Special table ID support not required for stats requests. */
1021 if (*usable_protocols
& OFPUTIL_P_OF10_STD_TID
) {
1022 *usable_protocols
|= OFPUTIL_P_OF10_STD
;
1024 if (*usable_protocols
& OFPUTIL_P_OF10_NXM_TID
) {
1025 *usable_protocols
|= OFPUTIL_P_OF10_NXM
;
1028 fsr
->aggregate
= aggregate
;
1029 fsr
->cookie
= fm
.cookie
;
1030 fsr
->cookie_mask
= fm
.cookie_mask
;
1031 fsr
->match
= fm
.match
;
1032 fsr
->out_port
= fm
.out_port
;
1033 fsr
->out_group
= fm
.out_group
;
1034 fsr
->table_id
= fm
.table_id
;
1038 /* Parses a specification of a flow from 's' into 'flow'. 's' must take the
1039 * form FIELD=VALUE[,FIELD=VALUE]... where each FIELD is the name of a
1040 * mf_field. Fields must be specified in a natural order for satisfying
1041 * prerequisites. If 'mask' is specified, fills the mask field for each of the
1042 * field specified in flow. If the map, 'names_portno' is specfied, converts
1043 * the in_port name into port no while setting the 'flow'.
1045 * Returns NULL on success, otherwise a malloc()'d string that explains the
1048 parse_ofp_exact_flow(struct flow
*flow
, struct flow
*mask
, const char *s
,
1049 const struct simap
*portno_names
)
1051 char *pos
, *key
, *value_s
;
1055 memset(flow
, 0, sizeof *flow
);
1057 memset(mask
, 0, sizeof *mask
);
1060 pos
= copy
= xstrdup(s
);
1061 while (ofputil_parse_key_value(&pos
, &key
, &value_s
)) {
1062 const struct protocol
*p
;
1063 if (parse_protocol(key
, &p
)) {
1064 if (flow
->dl_type
) {
1065 error
= xasprintf("%s: Ethernet type set multiple times", s
);
1068 flow
->dl_type
= htons(p
->dl_type
);
1070 mask
->dl_type
= OVS_BE16_MAX
;
1074 if (flow
->nw_proto
) {
1075 error
= xasprintf("%s: network protocol set "
1076 "multiple times", s
);
1079 flow
->nw_proto
= p
->nw_proto
;
1081 mask
->nw_proto
= UINT8_MAX
;
1085 const struct mf_field
*mf
;
1086 union mf_value value
;
1089 mf
= mf_from_name(key
);
1091 error
= xasprintf("%s: unknown field %s", s
, key
);
1095 if (!mf_are_prereqs_ok(mf
, flow
)) {
1096 error
= xasprintf("%s: prerequisites not met for setting %s",
1101 if (!mf_is_zero(mf
, flow
)) {
1102 error
= xasprintf("%s: field %s set multiple times", s
, key
);
1106 if (!strcmp(key
, "in_port")
1108 && simap_contains(portno_names
, value_s
)) {
1109 flow
->in_port
.ofp_port
= u16_to_ofp(
1110 simap_get(portno_names
, value_s
));
1112 mask
->in_port
.ofp_port
= u16_to_ofp(ntohs(OVS_BE16_MAX
));
1115 field_error
= mf_parse_value(mf
, value_s
, &value
);
1117 error
= xasprintf("%s: bad value for %s (%s)",
1118 s
, key
, field_error
);
1123 mf_set_flow_value(mf
, &value
, flow
);
1125 mf_mask_field(mf
, mask
);
1131 if (!flow
->in_port
.ofp_port
) {
1132 flow
->in_port
.ofp_port
= OFPP_NONE
;
1139 memset(flow
, 0, sizeof *flow
);
1141 memset(mask
, 0, sizeof *mask
);
1147 static char * OVS_WARN_UNUSED_RESULT
1148 parse_bucket_str(struct ofputil_bucket
*bucket
, char *str_
, uint8_t group_type
,
1149 enum ofputil_protocol
*usable_protocols
)
1151 char *pos
, *key
, *value
;
1152 struct ofpbuf ofpacts
;
1156 bucket
->weight
= group_type
== OFPGT11_SELECT
? 1 : 0;
1157 bucket
->bucket_id
= OFPG15_BUCKET_ALL
;
1158 bucket
->watch_port
= OFPP_ANY
;
1159 bucket
->watch_group
= OFPG11_ANY
;
1165 while (ofputil_parse_key_value(&pos
, &key
, &value
)) {
1166 if (!strcasecmp(key
, "weight")) {
1167 error
= str_to_u16(value
, "weight", &bucket
->weight
);
1168 } else if (!strcasecmp(key
, "watch_port")) {
1169 if (!ofputil_port_from_string(value
, &bucket
->watch_port
)
1170 || (ofp_to_u16(bucket
->watch_port
) >= ofp_to_u16(OFPP_MAX
)
1171 && bucket
->watch_port
!= OFPP_ANY
)) {
1172 error
= xasprintf("%s: invalid watch_port", value
);
1174 } else if (!strcasecmp(key
, "watch_group")) {
1175 error
= str_to_u32(value
, &bucket
->watch_group
);
1176 if (!error
&& bucket
->watch_group
> OFPG_MAX
) {
1177 error
= xasprintf("invalid watch_group id %"PRIu32
,
1178 bucket
->watch_group
);
1180 } else if (!strcasecmp(key
, "bucket_id")) {
1181 error
= str_to_u32(value
, &bucket
->bucket_id
);
1182 if (!error
&& bucket
->bucket_id
> OFPG15_BUCKET_MAX
) {
1183 error
= xasprintf("invalid bucket_id id %"PRIu32
,
1186 *usable_protocols
&= OFPUTIL_P_OF15_UP
;
1187 } else if (!strcasecmp(key
, "action") || !strcasecmp(key
, "actions")) {
1188 ds_put_format(&actions
, "%s,", value
);
1190 ds_put_format(&actions
, "%s(%s),", key
, value
);
1194 ds_destroy(&actions
);
1199 if (!actions
.length
) {
1200 return xstrdup("bucket must specify actions");
1202 ds_chomp(&actions
, ',');
1204 ofpbuf_init(&ofpacts
, 0);
1205 error
= ofpacts_parse_actions(ds_cstr(&actions
), &ofpacts
,
1207 ds_destroy(&actions
);
1209 ofpbuf_uninit(&ofpacts
);
1212 bucket
->ofpacts
= ofpacts
.data
;
1213 bucket
->ofpacts_len
= ofpacts
.size
;
1218 static char * OVS_WARN_UNUSED_RESULT
1219 parse_select_group_field(char *s
, struct field_array
*fa
,
1220 enum ofputil_protocol
*usable_protocols
)
1222 char *save_ptr
= NULL
;
1225 for (name
= strtok_r(s
, "=, \t\r\n", &save_ptr
); name
;
1226 name
= strtok_r(NULL
, "=, \t\r\n", &save_ptr
)) {
1227 const struct mf_field
*mf
= mf_from_name(name
);
1231 const char *value_str
;
1232 union mf_value value
;
1234 if (bitmap_is_set(fa
->used
.bm
, mf
->id
)) {
1235 return xasprintf("%s: duplicate field", name
);
1238 value_str
= strtok_r(NULL
, ", \t\r\n", &save_ptr
);
1240 error
= mf_parse_value(mf
, value_str
, &value
);
1245 /* The mask cannot be all-zeros */
1246 if (is_all_zeros(&value
, mf
->n_bytes
)) {
1247 return xasprintf("%s: values are wildcards here "
1248 "and must not be all-zeros", s
);
1251 /* The values parsed are masks for fields used
1252 * by the selection method */
1253 if (!mf_is_mask_valid(mf
, &value
)) {
1254 return xasprintf("%s: invalid mask for field %s",
1255 value_str
, mf
->name
);
1258 memset(&value
, 0xff, mf
->n_bytes
);
1261 field_array_set(mf
->id
, &value
, fa
);
1263 if (is_all_ones(&value
, mf
->n_bytes
)) {
1264 *usable_protocols
&= mf
->usable_protocols_exact
;
1265 } else if (mf
->usable_protocols_bitwise
== mf
->usable_protocols_cidr
1266 || ip_is_cidr(value
.be32
)) {
1267 *usable_protocols
&= mf
->usable_protocols_cidr
;
1269 *usable_protocols
&= mf
->usable_protocols_bitwise
;
1272 return xasprintf("%s: unknown field %s", s
, name
);
1279 static char * OVS_WARN_UNUSED_RESULT
1280 parse_ofp_group_mod_str__(struct ofputil_group_mod
*gm
, uint16_t command
,
1282 enum ofputil_protocol
*usable_protocols
)
1285 F_GROUP_TYPE
= 1 << 0,
1287 F_COMMAND_BUCKET_ID
= 1 << 2,
1288 F_COMMAND_BUCKET_ID_ALL
= 1 << 3,
1290 char *save_ptr
= NULL
;
1291 bool had_type
= false;
1292 bool had_command_bucket_id
= false;
1294 struct ofputil_bucket
*bucket
;
1297 *usable_protocols
= OFPUTIL_P_OF11_UP
;
1301 fields
= F_GROUP_TYPE
| F_BUCKETS
;
1304 case OFPGC11_DELETE
:
1308 case OFPGC11_MODIFY
:
1309 fields
= F_GROUP_TYPE
| F_BUCKETS
;
1312 case OFPGC15_INSERT_BUCKET
:
1313 fields
= F_BUCKETS
| F_COMMAND_BUCKET_ID
;
1314 *usable_protocols
&= OFPUTIL_P_OF15_UP
;
1317 case OFPGC15_REMOVE_BUCKET
:
1318 fields
= F_COMMAND_BUCKET_ID
| F_COMMAND_BUCKET_ID_ALL
;
1319 *usable_protocols
&= OFPUTIL_P_OF15_UP
;
1326 memset(gm
, 0, sizeof *gm
);
1327 gm
->command
= command
;
1328 gm
->group_id
= OFPG_ANY
;
1329 gm
->command_bucket_id
= OFPG15_BUCKET_ALL
;
1330 list_init(&gm
->buckets
);
1331 if (command
== OFPGC11_DELETE
&& string
[0] == '\0') {
1332 gm
->group_id
= OFPG_ALL
;
1336 *usable_protocols
= OFPUTIL_P_OF11_UP
;
1338 /* Strip the buckets off the end of 'string', if there are any, saving a
1339 * pointer for later. We want to parse the buckets last because the bucket
1340 * type influences bucket defaults. */
1341 char *bkt_str
= strstr(string
, "bucket=");
1343 if (!(fields
& F_BUCKETS
)) {
1344 error
= xstrdup("bucket is not needed");
1350 /* Parse everything before the buckets. */
1351 for (name
= strtok_r(string
, "=, \t\r\n", &save_ptr
); name
;
1352 name
= strtok_r(NULL
, "=, \t\r\n", &save_ptr
)) {
1355 value
= strtok_r(NULL
, ", \t\r\n", &save_ptr
);
1357 error
= xasprintf("field %s missing value", name
);
1361 if (!strcmp(name
, "command_bucket_id")) {
1362 if (!(fields
& F_COMMAND_BUCKET_ID
)) {
1363 error
= xstrdup("command bucket id is not needed");
1366 if (!strcmp(value
, "all")) {
1367 gm
->command_bucket_id
= OFPG15_BUCKET_ALL
;
1368 } else if (!strcmp(value
, "first")) {
1369 gm
->command_bucket_id
= OFPG15_BUCKET_FIRST
;
1370 } else if (!strcmp(value
, "last")) {
1371 gm
->command_bucket_id
= OFPG15_BUCKET_LAST
;
1373 error
= str_to_u32(value
, &gm
->command_bucket_id
);
1377 if (gm
->command_bucket_id
> OFPG15_BUCKET_MAX
1378 && (gm
->command_bucket_id
!= OFPG15_BUCKET_FIRST
1379 && gm
->command_bucket_id
!= OFPG15_BUCKET_LAST
1380 && gm
->command_bucket_id
!= OFPG15_BUCKET_ALL
)) {
1381 error
= xasprintf("invalid command bucket id %"PRIu32
,
1382 gm
->command_bucket_id
);
1386 if (gm
->command_bucket_id
== OFPG15_BUCKET_ALL
1387 && !(fields
& F_COMMAND_BUCKET_ID_ALL
)) {
1388 error
= xstrdup("command_bucket_id=all is not permitted");
1391 had_command_bucket_id
= true;
1392 } else if (!strcmp(name
, "group_id")) {
1393 if(!strcmp(value
, "all")) {
1394 gm
->group_id
= OFPG_ALL
;
1396 error
= str_to_u32(value
, &gm
->group_id
);
1400 if (gm
->group_id
!= OFPG_ALL
&& gm
->group_id
> OFPG_MAX
) {
1401 error
= xasprintf("invalid group id %"PRIu32
,
1406 } else if (!strcmp(name
, "type")){
1407 if (!(fields
& F_GROUP_TYPE
)) {
1408 error
= xstrdup("type is not needed");
1411 if (!strcmp(value
, "all")) {
1412 gm
->type
= OFPGT11_ALL
;
1413 } else if (!strcmp(value
, "select")) {
1414 gm
->type
= OFPGT11_SELECT
;
1415 } else if (!strcmp(value
, "indirect")) {
1416 gm
->type
= OFPGT11_INDIRECT
;
1417 } else if (!strcmp(value
, "ff") ||
1418 !strcmp(value
, "fast_failover")) {
1419 gm
->type
= OFPGT11_FF
;
1421 error
= xasprintf("invalid group type %s", value
);
1425 } else if (!strcmp(name
, "selection_method")) {
1426 if (!(fields
& F_GROUP_TYPE
)) {
1427 error
= xstrdup("selection method is not needed");
1430 if (strlen(value
) >= NTR_MAX_SELECTION_METHOD_LEN
) {
1431 error
= xasprintf("selection method is longer than %u"
1433 NTR_MAX_SELECTION_METHOD_LEN
- 1);
1436 memset(gm
->props
.selection_method
, '\0',
1437 NTR_MAX_SELECTION_METHOD_LEN
);
1438 strcpy(gm
->props
.selection_method
, value
);
1439 *usable_protocols
&= OFPUTIL_P_OF15_UP
;
1440 } else if (!strcmp(name
, "selection_method_param")) {
1441 if (!(fields
& F_GROUP_TYPE
)) {
1442 error
= xstrdup("selection method param is not needed");
1445 error
= str_to_u64(value
, &gm
->props
.selection_method_param
);
1449 *usable_protocols
&= OFPUTIL_P_OF15_UP
;
1450 } else if (!strcmp(name
, "fields")) {
1451 if (!(fields
& F_GROUP_TYPE
)) {
1452 error
= xstrdup("fields are not needed");
1455 error
= parse_select_group_field(value
, &gm
->props
.fields
,
1460 *usable_protocols
&= OFPUTIL_P_OF15_UP
;
1462 error
= xasprintf("unknown keyword %s", name
);
1466 if (gm
->group_id
== OFPG_ANY
) {
1467 error
= xstrdup("must specify a group_id");
1470 if (fields
& F_GROUP_TYPE
&& !had_type
) {
1471 error
= xstrdup("must specify a type");
1475 if (fields
& F_COMMAND_BUCKET_ID
) {
1476 if (!(fields
& F_COMMAND_BUCKET_ID_ALL
|| had_command_bucket_id
)) {
1477 error
= xstrdup("must specify a command bucket id");
1480 } else if (had_command_bucket_id
) {
1481 error
= xstrdup("command bucket id is not needed");
1485 /* Now parse the buckets, if any. */
1489 bkt_str
= strchr(bkt_str
+ 1, '=');
1491 error
= xstrdup("must specify bucket content");
1496 next_bkt_str
= strstr(bkt_str
, "bucket=");
1498 *next_bkt_str
= '\0';
1501 bucket
= xzalloc(sizeof(struct ofputil_bucket
));
1502 error
= parse_bucket_str(bucket
, bkt_str
, gm
->type
, usable_protocols
);
1507 list_push_back(&gm
->buckets
, &bucket
->list_node
);
1509 if (gm
->type
!= OFPGT11_SELECT
&& bucket
->weight
) {
1510 error
= xstrdup("Only select groups can have bucket weights.");
1514 bkt_str
= next_bkt_str
;
1516 if (gm
->type
== OFPGT11_INDIRECT
&& !list_is_short(&gm
->buckets
)) {
1517 error
= xstrdup("Indirect groups can have at most one bucket.");
1523 ofputil_bucket_list_destroy(&gm
->buckets
);
1527 char * OVS_WARN_UNUSED_RESULT
1528 parse_ofp_group_mod_str(struct ofputil_group_mod
*gm
, uint16_t command
,
1530 enum ofputil_protocol
*usable_protocols
)
1532 char *string
= xstrdup(str_
);
1533 char *error
= parse_ofp_group_mod_str__(gm
, command
, string
,
1538 ofputil_bucket_list_destroy(&gm
->buckets
);
1543 char * OVS_WARN_UNUSED_RESULT
1544 parse_ofp_group_mod_file(const char *file_name
, uint16_t command
,
1545 struct ofputil_group_mod
**gms
, size_t *n_gms
,
1546 enum ofputil_protocol
*usable_protocols
)
1548 size_t allocated_gms
;
1556 stream
= !strcmp(file_name
, "-") ? stdin
: fopen(file_name
, "r");
1557 if (stream
== NULL
) {
1558 return xasprintf("%s: open failed (%s)",
1559 file_name
, ovs_strerror(errno
));
1562 allocated_gms
= *n_gms
;
1565 *usable_protocols
= OFPUTIL_P_OF11_UP
;
1566 while (!ds_get_preprocessed_line(&s
, stream
, &line_number
)) {
1567 enum ofputil_protocol usable
;
1570 if (*n_gms
>= allocated_gms
) {
1571 struct ofputil_group_mod
*new_gms
;
1574 new_gms
= x2nrealloc(*gms
, &allocated_gms
, sizeof **gms
);
1575 for (i
= 0; i
< *n_gms
; i
++) {
1576 list_moved(&new_gms
[i
].buckets
, &(*gms
)[i
].buckets
);
1580 error
= parse_ofp_group_mod_str(&(*gms
)[*n_gms
], command
, ds_cstr(&s
),
1585 for (i
= 0; i
< *n_gms
; i
++) {
1586 ofputil_bucket_list_destroy(&(*gms
)[i
].buckets
);
1593 if (stream
!= stdin
) {
1597 return xasprintf("%s:%d: %s", file_name
, line_number
, error
);
1599 *usable_protocols
&= usable
;
1604 if (stream
!= stdin
) {
1610 char * OVS_WARN_UNUSED_RESULT
1611 parse_ofp_geneve_table_mod_str(struct ofputil_geneve_table_mod
*gtm
,
1612 uint16_t command
, const char *s
,
1613 enum ofputil_protocol
*usable_protocols
)
1615 *usable_protocols
= OFPUTIL_P_NXM_OXM_ANY
;
1617 gtm
->command
= command
;
1618 list_init(>m
->mappings
);
1621 struct ofputil_geneve_map
*map
= xmalloc(sizeof *map
);
1628 list_push_back(>m
->mappings
, &map
->list_node
);
1630 if (!ovs_scan(s
, "{class=%"SCNi16
",type=%"SCNi8
",len=%"SCNi8
"}->tun_metadata%"SCNi16
"%n",
1631 &map
->option_class
, &map
->option_type
, &map
->option_len
,
1633 ofputil_uninit_geneve_table(>m
->mappings
);
1634 return xstrdup("invalid geneve mapping");