2 * Copyright (c) 2009, 2010, 2011, 2012, 2013, 2014 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.
18 #include <arpa/inet.h>
23 #include <netinet/in.h>
24 #include <netinet/icmp6.h>
28 #include "byte-order.h"
31 #include "dynamic-string.h"
38 #include "tun-metadata.h"
39 #include "unaligned.h"
42 #include "openvswitch/vlog.h"
44 VLOG_DEFINE_THIS_MODULE(odp_util
);
46 /* The interface between userspace and kernel uses an "OVS_*" prefix.
47 * Since this is fairly non-specific for the OVS userspace components,
48 * "ODP_*" (Open vSwitch Datapath) is used as the prefix for
49 * interactions with the datapath.
52 /* The set of characters that may separate one action or one key attribute
54 static const char *delimiters
= ", \t\r\n";
58 const struct attr_len_tbl
*next
;
61 #define ATTR_LEN_INVALID -1
62 #define ATTR_LEN_VARIABLE -2
63 #define ATTR_LEN_NESTED -3
65 static int parse_odp_key_mask_attr(const char *, const struct simap
*port_names
,
66 struct ofpbuf
*, struct ofpbuf
*);
67 static void format_odp_key_attr(const struct nlattr
*a
,
68 const struct nlattr
*ma
,
69 const struct hmap
*portno_names
, struct ds
*ds
,
73 struct geneve_opt d
[63];
77 static int scan_geneve(const char *s
, struct geneve_scan
*key
,
78 struct geneve_scan
*mask
);
79 static void format_geneve_opts(const struct geneve_opt
*opt
,
80 const struct geneve_opt
*mask
, int opts_len
,
81 struct ds
*, bool verbose
);
83 static struct nlattr
*generate_all_wildcard_mask(const struct attr_len_tbl tbl
[],
84 int max
, struct ofpbuf
*,
85 const struct nlattr
*key
);
86 /* Returns one the following for the action with the given OVS_ACTION_ATTR_*
89 * - For an action whose argument has a fixed length, returned that
90 * nonnegative length in bytes.
92 * - For an action with a variable-length argument, returns ATTR_LEN_VARIABLE.
94 * - For an invalid 'type', returns ATTR_LEN_INVALID. */
96 odp_action_len(uint16_t type
)
98 if (type
> OVS_ACTION_ATTR_MAX
) {
102 switch ((enum ovs_action_attr
) type
) {
103 case OVS_ACTION_ATTR_OUTPUT
: return sizeof(uint32_t);
104 case OVS_ACTION_ATTR_TUNNEL_PUSH
: return ATTR_LEN_VARIABLE
;
105 case OVS_ACTION_ATTR_TUNNEL_POP
: return sizeof(uint32_t);
106 case OVS_ACTION_ATTR_USERSPACE
: return ATTR_LEN_VARIABLE
;
107 case OVS_ACTION_ATTR_PUSH_VLAN
: return sizeof(struct ovs_action_push_vlan
);
108 case OVS_ACTION_ATTR_POP_VLAN
: return 0;
109 case OVS_ACTION_ATTR_PUSH_MPLS
: return sizeof(struct ovs_action_push_mpls
);
110 case OVS_ACTION_ATTR_POP_MPLS
: return sizeof(ovs_be16
);
111 case OVS_ACTION_ATTR_RECIRC
: return sizeof(uint32_t);
112 case OVS_ACTION_ATTR_HASH
: return sizeof(struct ovs_action_hash
);
113 case OVS_ACTION_ATTR_SET
: return ATTR_LEN_VARIABLE
;
114 case OVS_ACTION_ATTR_SET_MASKED
: return ATTR_LEN_VARIABLE
;
115 case OVS_ACTION_ATTR_SAMPLE
: return ATTR_LEN_VARIABLE
;
117 case OVS_ACTION_ATTR_UNSPEC
:
118 case __OVS_ACTION_ATTR_MAX
:
119 return ATTR_LEN_INVALID
;
122 return ATTR_LEN_INVALID
;
125 /* Returns a string form of 'attr'. The return value is either a statically
126 * allocated constant string or the 'bufsize'-byte buffer 'namebuf'. 'bufsize'
127 * should be at least OVS_KEY_ATTR_BUFSIZE. */
128 enum { OVS_KEY_ATTR_BUFSIZE
= 3 + INT_STRLEN(unsigned int) + 1 };
130 ovs_key_attr_to_string(enum ovs_key_attr attr
, char *namebuf
, size_t bufsize
)
133 case OVS_KEY_ATTR_UNSPEC
: return "unspec";
134 case OVS_KEY_ATTR_ENCAP
: return "encap";
135 case OVS_KEY_ATTR_PRIORITY
: return "skb_priority";
136 case OVS_KEY_ATTR_SKB_MARK
: return "skb_mark";
137 case OVS_KEY_ATTR_TUNNEL
: return "tunnel";
138 case OVS_KEY_ATTR_IN_PORT
: return "in_port";
139 case OVS_KEY_ATTR_ETHERNET
: return "eth";
140 case OVS_KEY_ATTR_VLAN
: return "vlan";
141 case OVS_KEY_ATTR_ETHERTYPE
: return "eth_type";
142 case OVS_KEY_ATTR_IPV4
: return "ipv4";
143 case OVS_KEY_ATTR_IPV6
: return "ipv6";
144 case OVS_KEY_ATTR_TCP
: return "tcp";
145 case OVS_KEY_ATTR_TCP_FLAGS
: return "tcp_flags";
146 case OVS_KEY_ATTR_UDP
: return "udp";
147 case OVS_KEY_ATTR_SCTP
: return "sctp";
148 case OVS_KEY_ATTR_ICMP
: return "icmp";
149 case OVS_KEY_ATTR_ICMPV6
: return "icmpv6";
150 case OVS_KEY_ATTR_ARP
: return "arp";
151 case OVS_KEY_ATTR_ND
: return "nd";
152 case OVS_KEY_ATTR_MPLS
: return "mpls";
153 case OVS_KEY_ATTR_DP_HASH
: return "dp_hash";
154 case OVS_KEY_ATTR_RECIRC_ID
: return "recirc_id";
156 case __OVS_KEY_ATTR_MAX
:
158 snprintf(namebuf
, bufsize
, "key%u", (unsigned int) attr
);
164 format_generic_odp_action(struct ds
*ds
, const struct nlattr
*a
)
166 size_t len
= nl_attr_get_size(a
);
168 ds_put_format(ds
, "action%"PRId16
, nl_attr_type(a
));
170 const uint8_t *unspec
;
173 unspec
= nl_attr_get(a
);
174 for (i
= 0; i
< len
; i
++) {
175 ds_put_char(ds
, i
? ' ': '(');
176 ds_put_format(ds
, "%02x", unspec
[i
]);
178 ds_put_char(ds
, ')');
183 format_odp_sample_action(struct ds
*ds
, const struct nlattr
*attr
)
185 static const struct nl_policy ovs_sample_policy
[] = {
186 [OVS_SAMPLE_ATTR_PROBABILITY
] = { .type
= NL_A_U32
},
187 [OVS_SAMPLE_ATTR_ACTIONS
] = { .type
= NL_A_NESTED
}
189 struct nlattr
*a
[ARRAY_SIZE(ovs_sample_policy
)];
191 const struct nlattr
*nla_acts
;
194 ds_put_cstr(ds
, "sample");
196 if (!nl_parse_nested(attr
, ovs_sample_policy
, a
, ARRAY_SIZE(a
))) {
197 ds_put_cstr(ds
, "(error)");
201 percentage
= (100.0 * nl_attr_get_u32(a
[OVS_SAMPLE_ATTR_PROBABILITY
])) /
204 ds_put_format(ds
, "(sample=%.1f%%,", percentage
);
206 ds_put_cstr(ds
, "actions(");
207 nla_acts
= nl_attr_get(a
[OVS_SAMPLE_ATTR_ACTIONS
]);
208 len
= nl_attr_get_size(a
[OVS_SAMPLE_ATTR_ACTIONS
]);
209 format_odp_actions(ds
, nla_acts
, len
);
210 ds_put_format(ds
, "))");
214 slow_path_reason_to_string(uint32_t reason
)
216 switch ((enum slow_path_reason
) reason
) {
217 #define SPR(ENUM, STRING, EXPLANATION) case ENUM: return STRING;
226 slow_path_reason_to_explanation(enum slow_path_reason reason
)
229 #define SPR(ENUM, STRING, EXPLANATION) case ENUM: return EXPLANATION;
238 parse_flags(const char *s
, const char *(*bit_to_string
)(uint32_t),
239 uint32_t *res_flags
, uint32_t allowed
, uint32_t *res_mask
)
244 /* Parse masked flags in numeric format? */
245 if (res_mask
&& ovs_scan(s
, "%"SCNi32
"/%"SCNi32
"%n",
246 res_flags
, res_mask
, &n
) && n
> 0) {
247 if (*res_flags
& ~allowed
|| *res_mask
& ~allowed
) {
255 if (res_mask
&& (*s
== '+' || *s
== '-')) {
256 uint32_t flags
= 0, mask
= 0;
258 /* Parse masked flags. */
259 while (s
[0] != ')') {
266 } else if (s
[0] == '-') {
274 name_len
= strcspn(s
, "+-)");
276 for (bit
= 1; bit
; bit
<<= 1) {
277 const char *fname
= bit_to_string(bit
);
285 if (len
!= name_len
) {
288 if (!strncmp(s
, fname
, len
)) {
290 /* bit already set. */
293 if (!(bit
& allowed
)) {
305 return -EINVAL
; /* Unknown flag name */
316 /* Parse unmasked flags. If a flag is present, it is set, otherwise
318 while (s
[n
] != ')') {
319 unsigned long long int flags
;
323 if (ovs_scan(&s
[n
], "%lli%n", &flags
, &n0
)) {
324 if (flags
& ~allowed
) {
327 n
+= n0
+ (s
[n
+ n0
] == ',');
332 for (bit
= 1; bit
; bit
<<= 1) {
333 const char *name
= bit_to_string(bit
);
341 if (!strncmp(s
+ n
, name
, len
) &&
342 (s
[n
+ len
] == ',' || s
[n
+ len
] == ')')) {
343 if (!(bit
& allowed
)) {
347 n
+= len
+ (s
[n
+ len
] == ',');
359 *res_mask
= UINT32_MAX
;
365 format_odp_userspace_action(struct ds
*ds
, const struct nlattr
*attr
)
367 static const struct nl_policy ovs_userspace_policy
[] = {
368 [OVS_USERSPACE_ATTR_PID
] = { .type
= NL_A_U32
},
369 [OVS_USERSPACE_ATTR_USERDATA
] = { .type
= NL_A_UNSPEC
,
371 [OVS_USERSPACE_ATTR_EGRESS_TUN_PORT
] = { .type
= NL_A_U32
,
374 struct nlattr
*a
[ARRAY_SIZE(ovs_userspace_policy
)];
375 const struct nlattr
*userdata_attr
;
376 const struct nlattr
*tunnel_out_port_attr
;
378 if (!nl_parse_nested(attr
, ovs_userspace_policy
, a
, ARRAY_SIZE(a
))) {
379 ds_put_cstr(ds
, "userspace(error)");
383 ds_put_format(ds
, "userspace(pid=%"PRIu32
,
384 nl_attr_get_u32(a
[OVS_USERSPACE_ATTR_PID
]));
386 userdata_attr
= a
[OVS_USERSPACE_ATTR_USERDATA
];
389 const uint8_t *userdata
= nl_attr_get(userdata_attr
);
390 size_t userdata_len
= nl_attr_get_size(userdata_attr
);
391 bool userdata_unspec
= true;
392 union user_action_cookie cookie
;
394 if (userdata_len
>= sizeof cookie
.type
395 && userdata_len
<= sizeof cookie
) {
397 memset(&cookie
, 0, sizeof cookie
);
398 memcpy(&cookie
, userdata
, userdata_len
);
400 userdata_unspec
= false;
402 if (userdata_len
== sizeof cookie
.sflow
403 && cookie
.type
== USER_ACTION_COOKIE_SFLOW
) {
404 ds_put_format(ds
, ",sFlow("
405 "vid=%"PRIu16
",pcp=%"PRIu8
",output=%"PRIu32
")",
406 vlan_tci_to_vid(cookie
.sflow
.vlan_tci
),
407 vlan_tci_to_pcp(cookie
.sflow
.vlan_tci
),
408 cookie
.sflow
.output
);
409 } else if (userdata_len
== sizeof cookie
.slow_path
410 && cookie
.type
== USER_ACTION_COOKIE_SLOW_PATH
) {
411 ds_put_cstr(ds
, ",slow_path(");
412 format_flags(ds
, slow_path_reason_to_string
,
413 cookie
.slow_path
.reason
, ',');
414 ds_put_format(ds
, ")");
415 } else if (userdata_len
== sizeof cookie
.flow_sample
416 && cookie
.type
== USER_ACTION_COOKIE_FLOW_SAMPLE
) {
417 ds_put_format(ds
, ",flow_sample(probability=%"PRIu16
418 ",collector_set_id=%"PRIu32
419 ",obs_domain_id=%"PRIu32
420 ",obs_point_id=%"PRIu32
")",
421 cookie
.flow_sample
.probability
,
422 cookie
.flow_sample
.collector_set_id
,
423 cookie
.flow_sample
.obs_domain_id
,
424 cookie
.flow_sample
.obs_point_id
);
425 } else if (userdata_len
>= sizeof cookie
.ipfix
426 && cookie
.type
== USER_ACTION_COOKIE_IPFIX
) {
427 ds_put_format(ds
, ",ipfix(output_port=%"PRIu32
")",
428 cookie
.ipfix
.output_odp_port
);
430 userdata_unspec
= true;
434 if (userdata_unspec
) {
436 ds_put_format(ds
, ",userdata(");
437 for (i
= 0; i
< userdata_len
; i
++) {
438 ds_put_format(ds
, "%02x", userdata
[i
]);
440 ds_put_char(ds
, ')');
444 tunnel_out_port_attr
= a
[OVS_USERSPACE_ATTR_EGRESS_TUN_PORT
];
445 if (tunnel_out_port_attr
) {
446 ds_put_format(ds
, ",tunnel_out_port=%"PRIu32
,
447 nl_attr_get_u32(tunnel_out_port_attr
));
450 ds_put_char(ds
, ')');
454 format_vlan_tci(struct ds
*ds
, ovs_be16 tci
, ovs_be16 mask
, bool verbose
)
456 if (verbose
|| vlan_tci_to_vid(tci
) || vlan_tci_to_vid(mask
)) {
457 ds_put_format(ds
, "vid=%"PRIu16
, vlan_tci_to_vid(tci
));
458 if (vlan_tci_to_vid(mask
) != VLAN_VID_MASK
) { /* Partially masked. */
459 ds_put_format(ds
, "/0x%"PRIx16
, vlan_tci_to_vid(mask
));
461 ds_put_char(ds
, ',');
463 if (verbose
|| vlan_tci_to_pcp(tci
) || vlan_tci_to_pcp(mask
)) {
464 ds_put_format(ds
, "pcp=%d", vlan_tci_to_pcp(tci
));
465 if (vlan_tci_to_pcp(mask
) != (VLAN_PCP_MASK
>> VLAN_PCP_SHIFT
)) {
466 ds_put_format(ds
, "/0x%x", vlan_tci_to_pcp(mask
));
468 ds_put_char(ds
, ',');
470 if (!(tci
& htons(VLAN_CFI
))) {
471 ds_put_cstr(ds
, "cfi=0");
472 ds_put_char(ds
, ',');
478 format_mpls_lse(struct ds
*ds
, ovs_be32 mpls_lse
)
480 ds_put_format(ds
, "label=%"PRIu32
",tc=%d,ttl=%d,bos=%d",
481 mpls_lse_to_label(mpls_lse
),
482 mpls_lse_to_tc(mpls_lse
),
483 mpls_lse_to_ttl(mpls_lse
),
484 mpls_lse_to_bos(mpls_lse
));
488 format_mpls(struct ds
*ds
, const struct ovs_key_mpls
*mpls_key
,
489 const struct ovs_key_mpls
*mpls_mask
, int n
)
492 ovs_be32 key
= mpls_key
->mpls_lse
;
494 if (mpls_mask
== NULL
) {
495 format_mpls_lse(ds
, key
);
497 ovs_be32 mask
= mpls_mask
->mpls_lse
;
499 ds_put_format(ds
, "label=%"PRIu32
"/0x%x,tc=%d/%x,ttl=%d/0x%x,bos=%d/%x",
500 mpls_lse_to_label(key
), mpls_lse_to_label(mask
),
501 mpls_lse_to_tc(key
), mpls_lse_to_tc(mask
),
502 mpls_lse_to_ttl(key
), mpls_lse_to_ttl(mask
),
503 mpls_lse_to_bos(key
), mpls_lse_to_bos(mask
));
508 for (i
= 0; i
< n
; i
++) {
509 ds_put_format(ds
, "lse%d=%#"PRIx32
,
510 i
, ntohl(mpls_key
[i
].mpls_lse
));
512 ds_put_format(ds
, "/%#"PRIx32
, ntohl(mpls_mask
[i
].mpls_lse
));
514 ds_put_char(ds
, ',');
521 format_odp_recirc_action(struct ds
*ds
, uint32_t recirc_id
)
523 ds_put_format(ds
, "recirc(%#"PRIx32
")", recirc_id
);
527 format_odp_hash_action(struct ds
*ds
, const struct ovs_action_hash
*hash_act
)
529 ds_put_format(ds
, "hash(");
531 if (hash_act
->hash_alg
== OVS_HASH_ALG_L4
) {
532 ds_put_format(ds
, "hash_l4(%"PRIu32
")", hash_act
->hash_basis
);
534 ds_put_format(ds
, "Unknown hash algorithm(%"PRIu32
")",
537 ds_put_format(ds
, ")");
541 format_udp_tnl_push_header(struct ds
*ds
, const struct ip_header
*ip
)
543 const struct udp_header
*udp
;
545 udp
= (const struct udp_header
*) (ip
+ 1);
546 ds_put_format(ds
, "udp(src=%"PRIu16
",dst=%"PRIu16
",csum=0x%"PRIx16
"),",
547 ntohs(udp
->udp_src
), ntohs(udp
->udp_dst
),
548 ntohs(udp
->udp_csum
));
554 format_odp_tnl_push_header(struct ds
*ds
, struct ovs_action_push_tnl
*data
)
556 const struct eth_header
*eth
;
557 const struct ip_header
*ip
;
560 eth
= (const struct eth_header
*)data
->header
;
563 ip
= (const struct ip_header
*)l3
;
566 ds_put_format(ds
, "header(size=%"PRIu8
",type=%"PRIu8
",eth(dst=",
567 data
->header_len
, data
->tnl_type
);
568 ds_put_format(ds
, ETH_ADDR_FMT
, ETH_ADDR_ARGS(eth
->eth_dst
));
569 ds_put_format(ds
, ",src=");
570 ds_put_format(ds
, ETH_ADDR_FMT
, ETH_ADDR_ARGS(eth
->eth_src
));
571 ds_put_format(ds
, ",dl_type=0x%04"PRIx16
"),", ntohs(eth
->eth_type
));
574 ds_put_format(ds
, "ipv4(src="IP_FMT
",dst="IP_FMT
",proto=%"PRIu8
575 ",tos=%#"PRIx8
",ttl=%"PRIu8
",frag=0x%"PRIx16
"),",
576 IP_ARGS(get_16aligned_be32(&ip
->ip_src
)),
577 IP_ARGS(get_16aligned_be32(&ip
->ip_dst
)),
578 ip
->ip_proto
, ip
->ip_tos
,
582 if (data
->tnl_type
== OVS_VPORT_TYPE_VXLAN
) {
583 const struct vxlanhdr
*vxh
;
585 vxh
= format_udp_tnl_push_header(ds
, ip
);
587 ds_put_format(ds
, "vxlan(flags=0x%"PRIx32
",vni=0x%"PRIx32
")",
588 ntohl(get_16aligned_be32(&vxh
->vx_flags
)),
589 ntohl(get_16aligned_be32(&vxh
->vx_vni
)) >> 8);
590 } else if (data
->tnl_type
== OVS_VPORT_TYPE_GENEVE
) {
591 const struct genevehdr
*gnh
;
593 gnh
= format_udp_tnl_push_header(ds
, ip
);
595 ds_put_format(ds
, "geneve(%s%svni=0x%"PRIx32
,
596 gnh
->oam
? "oam," : "",
597 gnh
->critical
? "crit," : "",
598 ntohl(get_16aligned_be32(&gnh
->vni
)) >> 8);
601 ds_put_cstr(ds
, ",options(");
602 format_geneve_opts(gnh
->options
, NULL
, gnh
->opt_len
* 4,
604 ds_put_char(ds
, ')');
607 ds_put_char(ds
, ')');
608 } else if (data
->tnl_type
== OVS_VPORT_TYPE_GRE
) {
609 const struct gre_base_hdr
*greh
;
610 ovs_16aligned_be32
*options
;
613 l4
= ((uint8_t *)l3
+ sizeof(struct ip_header
));
614 greh
= (const struct gre_base_hdr
*) l4
;
616 ds_put_format(ds
, "gre((flags=0x%"PRIx16
",proto=0x%"PRIx16
")",
617 ntohs(greh
->flags
), ntohs(greh
->protocol
));
618 options
= (ovs_16aligned_be32
*)(greh
+ 1);
619 if (greh
->flags
& htons(GRE_CSUM
)) {
620 ds_put_format(ds
, ",csum=0x%"PRIx16
, ntohs(*((ovs_be16
*)options
)));
623 if (greh
->flags
& htons(GRE_KEY
)) {
624 ds_put_format(ds
, ",key=0x%"PRIx32
, ntohl(get_16aligned_be32(options
)));
627 if (greh
->flags
& htons(GRE_SEQ
)) {
628 ds_put_format(ds
, ",seq=0x%"PRIx32
, ntohl(get_16aligned_be32(options
)));
631 ds_put_format(ds
, ")");
633 ds_put_format(ds
, ")");
637 format_odp_tnl_push_action(struct ds
*ds
, const struct nlattr
*attr
)
639 struct ovs_action_push_tnl
*data
;
641 data
= (struct ovs_action_push_tnl
*) nl_attr_get(attr
);
643 ds_put_format(ds
, "tnl_push(tnl_port(%"PRIu32
"),", data
->tnl_port
);
644 format_odp_tnl_push_header(ds
, data
);
645 ds_put_format(ds
, ",out_port(%"PRIu32
"))", data
->out_port
);
649 format_odp_action(struct ds
*ds
, const struct nlattr
*a
)
652 enum ovs_action_attr type
= nl_attr_type(a
);
653 const struct ovs_action_push_vlan
*vlan
;
656 expected_len
= odp_action_len(nl_attr_type(a
));
657 if (expected_len
!= ATTR_LEN_VARIABLE
&&
658 nl_attr_get_size(a
) != expected_len
) {
659 ds_put_format(ds
, "bad length %"PRIuSIZE
", expected %d for: ",
660 nl_attr_get_size(a
), expected_len
);
661 format_generic_odp_action(ds
, a
);
666 case OVS_ACTION_ATTR_OUTPUT
:
667 ds_put_format(ds
, "%"PRIu32
, nl_attr_get_u32(a
));
669 case OVS_ACTION_ATTR_TUNNEL_POP
:
670 ds_put_format(ds
, "tnl_pop(%"PRIu32
")", nl_attr_get_u32(a
));
672 case OVS_ACTION_ATTR_TUNNEL_PUSH
:
673 format_odp_tnl_push_action(ds
, a
);
675 case OVS_ACTION_ATTR_USERSPACE
:
676 format_odp_userspace_action(ds
, a
);
678 case OVS_ACTION_ATTR_RECIRC
:
679 format_odp_recirc_action(ds
, nl_attr_get_u32(a
));
681 case OVS_ACTION_ATTR_HASH
:
682 format_odp_hash_action(ds
, nl_attr_get(a
));
684 case OVS_ACTION_ATTR_SET_MASKED
:
686 size
= nl_attr_get_size(a
) / 2;
687 ds_put_cstr(ds
, "set(");
689 /* Masked set action not supported for tunnel key, which is bigger. */
690 if (size
<= sizeof(struct ovs_key_ipv6
)) {
691 struct nlattr attr
[1 + DIV_ROUND_UP(sizeof(struct ovs_key_ipv6
),
692 sizeof(struct nlattr
))];
693 struct nlattr mask
[1 + DIV_ROUND_UP(sizeof(struct ovs_key_ipv6
),
694 sizeof(struct nlattr
))];
696 mask
->nla_type
= attr
->nla_type
= nl_attr_type(a
);
697 mask
->nla_len
= attr
->nla_len
= NLA_HDRLEN
+ size
;
698 memcpy(attr
+ 1, (char *)(a
+ 1), size
);
699 memcpy(mask
+ 1, (char *)(a
+ 1) + size
, size
);
700 format_odp_key_attr(attr
, mask
, NULL
, ds
, false);
702 format_odp_key_attr(a
, NULL
, NULL
, ds
, false);
704 ds_put_cstr(ds
, ")");
706 case OVS_ACTION_ATTR_SET
:
707 ds_put_cstr(ds
, "set(");
708 format_odp_key_attr(nl_attr_get(a
), NULL
, NULL
, ds
, true);
709 ds_put_cstr(ds
, ")");
711 case OVS_ACTION_ATTR_PUSH_VLAN
:
712 vlan
= nl_attr_get(a
);
713 ds_put_cstr(ds
, "push_vlan(");
714 if (vlan
->vlan_tpid
!= htons(ETH_TYPE_VLAN
)) {
715 ds_put_format(ds
, "tpid=0x%04"PRIx16
",", ntohs(vlan
->vlan_tpid
));
717 format_vlan_tci(ds
, vlan
->vlan_tci
, OVS_BE16_MAX
, false);
718 ds_put_char(ds
, ')');
720 case OVS_ACTION_ATTR_POP_VLAN
:
721 ds_put_cstr(ds
, "pop_vlan");
723 case OVS_ACTION_ATTR_PUSH_MPLS
: {
724 const struct ovs_action_push_mpls
*mpls
= nl_attr_get(a
);
725 ds_put_cstr(ds
, "push_mpls(");
726 format_mpls_lse(ds
, mpls
->mpls_lse
);
727 ds_put_format(ds
, ",eth_type=0x%"PRIx16
")", ntohs(mpls
->mpls_ethertype
));
730 case OVS_ACTION_ATTR_POP_MPLS
: {
731 ovs_be16 ethertype
= nl_attr_get_be16(a
);
732 ds_put_format(ds
, "pop_mpls(eth_type=0x%"PRIx16
")", ntohs(ethertype
));
735 case OVS_ACTION_ATTR_SAMPLE
:
736 format_odp_sample_action(ds
, a
);
738 case OVS_ACTION_ATTR_UNSPEC
:
739 case __OVS_ACTION_ATTR_MAX
:
741 format_generic_odp_action(ds
, a
);
747 format_odp_actions(struct ds
*ds
, const struct nlattr
*actions
,
751 const struct nlattr
*a
;
754 NL_ATTR_FOR_EACH (a
, left
, actions
, actions_len
) {
756 ds_put_char(ds
, ',');
758 format_odp_action(ds
, a
);
763 if (left
== actions_len
) {
764 ds_put_cstr(ds
, "<empty>");
766 ds_put_format(ds
, ",***%u leftover bytes*** (", left
);
767 for (i
= 0; i
< left
; i
++) {
768 ds_put_format(ds
, "%02x", ((const uint8_t *) a
)[i
]);
770 ds_put_char(ds
, ')');
773 ds_put_cstr(ds
, "drop");
777 /* Separate out parse_odp_userspace_action() function. */
779 parse_odp_userspace_action(const char *s
, struct ofpbuf
*actions
)
782 union user_action_cookie cookie
;
784 odp_port_t tunnel_out_port
;
786 void *user_data
= NULL
;
787 size_t user_data_size
= 0;
789 if (!ovs_scan(s
, "userspace(pid=%"SCNi32
"%n", &pid
, &n
)) {
795 uint32_t probability
;
796 uint32_t collector_set_id
;
797 uint32_t obs_domain_id
;
798 uint32_t obs_point_id
;
801 if (ovs_scan(&s
[n
], ",sFlow(vid=%i,"
802 "pcp=%i,output=%"SCNi32
")%n",
803 &vid
, &pcp
, &output
, &n1
)) {
807 tci
= vid
| (pcp
<< VLAN_PCP_SHIFT
);
812 cookie
.type
= USER_ACTION_COOKIE_SFLOW
;
813 cookie
.sflow
.vlan_tci
= htons(tci
);
814 cookie
.sflow
.output
= output
;
816 user_data_size
= sizeof cookie
.sflow
;
817 } else if (ovs_scan(&s
[n
], ",slow_path(%n",
822 cookie
.type
= USER_ACTION_COOKIE_SLOW_PATH
;
823 cookie
.slow_path
.unused
= 0;
824 cookie
.slow_path
.reason
= 0;
826 res
= parse_flags(&s
[n
], slow_path_reason_to_string
,
827 &cookie
.slow_path
.reason
,
828 SLOW_PATH_REASON_MASK
, NULL
);
829 if (res
< 0 || s
[n
+ res
] != ')') {
835 user_data_size
= sizeof cookie
.slow_path
;
836 } else if (ovs_scan(&s
[n
], ",flow_sample(probability=%"SCNi32
","
837 "collector_set_id=%"SCNi32
","
838 "obs_domain_id=%"SCNi32
","
839 "obs_point_id=%"SCNi32
")%n",
840 &probability
, &collector_set_id
,
841 &obs_domain_id
, &obs_point_id
, &n1
)) {
844 cookie
.type
= USER_ACTION_COOKIE_FLOW_SAMPLE
;
845 cookie
.flow_sample
.probability
= probability
;
846 cookie
.flow_sample
.collector_set_id
= collector_set_id
;
847 cookie
.flow_sample
.obs_domain_id
= obs_domain_id
;
848 cookie
.flow_sample
.obs_point_id
= obs_point_id
;
850 user_data_size
= sizeof cookie
.flow_sample
;
851 } else if (ovs_scan(&s
[n
], ",ipfix(output_port=%"SCNi32
")%n",
854 cookie
.type
= USER_ACTION_COOKIE_IPFIX
;
855 cookie
.ipfix
.output_odp_port
= u32_to_odp(output
);
857 user_data_size
= sizeof cookie
.ipfix
;
858 } else if (ovs_scan(&s
[n
], ",userdata(%n",
863 ofpbuf_init(&buf
, 16);
864 end
= ofpbuf_put_hex(&buf
, &s
[n
], NULL
);
868 user_data
= buf
.data
;
869 user_data_size
= buf
.size
;
876 if (ovs_scan(&s
[n
], ",tunnel_out_port=%"SCNi32
")%n",
877 &tunnel_out_port
, &n1
)) {
878 odp_put_userspace_action(pid
, user_data
, user_data_size
, tunnel_out_port
, actions
);
880 } else if (s
[n
] == ')') {
881 odp_put_userspace_action(pid
, user_data
, user_data_size
, ODPP_NONE
, actions
);
890 ovs_parse_tnl_push(const char *s
, struct ovs_action_push_tnl
*data
)
892 struct eth_header
*eth
;
893 struct ip_header
*ip
;
894 struct udp_header
*udp
;
895 struct gre_base_hdr
*greh
;
896 uint16_t gre_proto
, gre_flags
, dl_type
, udp_src
, udp_dst
, csum
;
898 uint32_t tnl_type
= 0, header_len
= 0;
902 if (!ovs_scan_len(s
, &n
, "tnl_push(tnl_port(%"SCNi32
"),", &data
->tnl_port
)) {
905 eth
= (struct eth_header
*) data
->header
;
906 l3
= (data
->header
+ sizeof *eth
);
907 l4
= ((uint8_t *) l3
+ sizeof (struct ip_header
));
908 ip
= (struct ip_header
*) l3
;
909 if (!ovs_scan_len(s
, &n
, "header(size=%"SCNi32
",type=%"SCNi32
","
910 "eth(dst="ETH_ADDR_SCAN_FMT
",",
913 ETH_ADDR_SCAN_ARGS(eth
->eth_dst
))) {
917 if (!ovs_scan_len(s
, &n
, "src="ETH_ADDR_SCAN_FMT
",",
918 ETH_ADDR_SCAN_ARGS(eth
->eth_src
))) {
921 if (!ovs_scan_len(s
, &n
, "dl_type=0x%"SCNx16
"),", &dl_type
)) {
924 eth
->eth_type
= htons(dl_type
);
927 if (!ovs_scan_len(s
, &n
, "ipv4(src="IP_SCAN_FMT
",dst="IP_SCAN_FMT
",proto=%"SCNi8
928 ",tos=%"SCNi8
",ttl=%"SCNi8
",frag=0x%"SCNx16
"),",
931 &ip
->ip_proto
, &ip
->ip_tos
,
932 &ip
->ip_ttl
, &ip
->ip_frag_off
)) {
935 put_16aligned_be32(&ip
->ip_src
, sip
);
936 put_16aligned_be32(&ip
->ip_dst
, dip
);
939 udp
= (struct udp_header
*) l4
;
940 greh
= (struct gre_base_hdr
*) l4
;
941 if (ovs_scan_len(s
, &n
, "udp(src=%"SCNi16
",dst=%"SCNi16
",csum=0x%"SCNx16
"),",
942 &udp_src
, &udp_dst
, &csum
)) {
943 uint32_t vx_flags
, vni
;
945 udp
->udp_src
= htons(udp_src
);
946 udp
->udp_dst
= htons(udp_dst
);
948 udp
->udp_csum
= htons(csum
);
950 if (ovs_scan_len(s
, &n
, "vxlan(flags=0x%"SCNx32
",vni=0x%"SCNx32
"))",
952 struct vxlanhdr
*vxh
= (struct vxlanhdr
*) (udp
+ 1);
954 put_16aligned_be32(&vxh
->vx_flags
, htonl(vx_flags
));
955 put_16aligned_be32(&vxh
->vx_vni
, htonl(vni
<< 8));
956 tnl_type
= OVS_VPORT_TYPE_VXLAN
;
957 header_len
= sizeof *eth
+ sizeof *ip
+
958 sizeof *udp
+ sizeof *vxh
;
959 } else if (ovs_scan_len(s
, &n
, "geneve(")) {
960 struct genevehdr
*gnh
= (struct genevehdr
*) (udp
+ 1);
962 memset(gnh
, 0, sizeof *gnh
);
963 header_len
= sizeof *eth
+ sizeof *ip
+
964 sizeof *udp
+ sizeof *gnh
;
966 if (ovs_scan_len(s
, &n
, "oam,")) {
969 if (ovs_scan_len(s
, &n
, "crit,")) {
972 if (!ovs_scan_len(s
, &n
, "vni=%"SCNi32
, &vni
)) {
975 if (ovs_scan_len(s
, &n
, ",options(")) {
976 struct geneve_scan options
;
979 memset(&options
, 0, sizeof options
);
980 len
= scan_geneve(s
+ n
, &options
, NULL
);
985 memcpy(gnh
->options
, options
.d
, options
.len
);
986 gnh
->opt_len
= options
.len
/ 4;
987 header_len
+= options
.len
;
991 if (!ovs_scan_len(s
, &n
, "))")) {
995 gnh
->proto_type
= htons(ETH_TYPE_TEB
);
996 put_16aligned_be32(&gnh
->vni
, htonl(vni
<< 8));
997 tnl_type
= OVS_VPORT_TYPE_GENEVE
;
1001 } else if (ovs_scan_len(s
, &n
, "gre((flags=0x%"SCNx16
",proto=0x%"SCNx16
")",
1002 &gre_flags
, &gre_proto
)){
1004 tnl_type
= OVS_VPORT_TYPE_GRE
;
1005 greh
->flags
= htons(gre_flags
);
1006 greh
->protocol
= htons(gre_proto
);
1007 ovs_16aligned_be32
*options
= (ovs_16aligned_be32
*) (greh
+ 1);
1009 if (greh
->flags
& htons(GRE_CSUM
)) {
1010 if (!ovs_scan_len(s
, &n
, ",csum=0x%"SCNx16
, &csum
)) {
1014 memset(options
, 0, sizeof *options
);
1015 *((ovs_be16
*)options
) = htons(csum
);
1018 if (greh
->flags
& htons(GRE_KEY
)) {
1021 if (!ovs_scan_len(s
, &n
, ",key=0x%"SCNx32
, &key
)) {
1025 put_16aligned_be32(options
, htonl(key
));
1028 if (greh
->flags
& htons(GRE_SEQ
)) {
1031 if (!ovs_scan_len(s
, &n
, ",seq=0x%"SCNx32
, &seq
)) {
1034 put_16aligned_be32(options
, htonl(seq
));
1038 if (!ovs_scan_len(s
, &n
, "))")) {
1042 header_len
= sizeof *eth
+ sizeof *ip
+
1043 ((uint8_t *) options
- (uint8_t *) greh
);
1048 /* check tunnel meta data. */
1049 if (data
->tnl_type
!= tnl_type
) {
1052 if (data
->header_len
!= header_len
) {
1057 if (!ovs_scan_len(s
, &n
, ",out_port(%"SCNi32
"))", &data
->out_port
)) {
1065 parse_odp_action(const char *s
, const struct simap
*port_names
,
1066 struct ofpbuf
*actions
)
1072 if (ovs_scan(s
, "%"SCNi32
"%n", &port
, &n
)) {
1073 nl_msg_put_u32(actions
, OVS_ACTION_ATTR_OUTPUT
, port
);
1079 int len
= strcspn(s
, delimiters
);
1080 struct simap_node
*node
;
1082 node
= simap_find_len(port_names
, s
, len
);
1084 nl_msg_put_u32(actions
, OVS_ACTION_ATTR_OUTPUT
, node
->data
);
1093 if (ovs_scan(s
, "recirc(%"PRIu32
")%n", &recirc_id
, &n
)) {
1094 nl_msg_put_u32(actions
, OVS_ACTION_ATTR_RECIRC
, recirc_id
);
1099 if (!strncmp(s
, "userspace(", 10)) {
1100 return parse_odp_userspace_action(s
, actions
);
1103 if (!strncmp(s
, "set(", 4)) {
1106 struct nlattr mask
[128 / sizeof(struct nlattr
)];
1107 struct ofpbuf maskbuf
;
1108 struct nlattr
*nested
, *key
;
1111 /* 'mask' is big enough to hold any key. */
1112 ofpbuf_use_stack(&maskbuf
, mask
, sizeof mask
);
1114 start_ofs
= nl_msg_start_nested(actions
, OVS_ACTION_ATTR_SET
);
1115 retval
= parse_odp_key_mask_attr(s
+ 4, port_names
, actions
, &maskbuf
);
1119 if (s
[retval
+ 4] != ')') {
1123 nested
= ofpbuf_at_assert(actions
, start_ofs
, sizeof *nested
);
1126 size
= nl_attr_get_size(mask
);
1127 if (size
== nl_attr_get_size(key
)) {
1128 /* Change to masked set action if not fully masked. */
1129 if (!is_all_ones(mask
+ 1, size
)) {
1130 key
->nla_len
+= size
;
1131 ofpbuf_put(actions
, mask
+ 1, size
);
1132 /* 'actions' may have been reallocated by ofpbuf_put(). */
1133 nested
= ofpbuf_at_assert(actions
, start_ofs
, sizeof *nested
);
1134 nested
->nla_type
= OVS_ACTION_ATTR_SET_MASKED
;
1138 nl_msg_end_nested(actions
, start_ofs
);
1143 struct ovs_action_push_vlan push
;
1144 int tpid
= ETH_TYPE_VLAN
;
1149 if (ovs_scan(s
, "push_vlan(vid=%i,pcp=%i)%n", &vid
, &pcp
, &n
)
1150 || ovs_scan(s
, "push_vlan(vid=%i,pcp=%i,cfi=%i)%n",
1151 &vid
, &pcp
, &cfi
, &n
)
1152 || ovs_scan(s
, "push_vlan(tpid=%i,vid=%i,pcp=%i)%n",
1153 &tpid
, &vid
, &pcp
, &n
)
1154 || ovs_scan(s
, "push_vlan(tpid=%i,vid=%i,pcp=%i,cfi=%i)%n",
1155 &tpid
, &vid
, &pcp
, &cfi
, &n
)) {
1156 push
.vlan_tpid
= htons(tpid
);
1157 push
.vlan_tci
= htons((vid
<< VLAN_VID_SHIFT
)
1158 | (pcp
<< VLAN_PCP_SHIFT
)
1159 | (cfi
? VLAN_CFI
: 0));
1160 nl_msg_put_unspec(actions
, OVS_ACTION_ATTR_PUSH_VLAN
,
1161 &push
, sizeof push
);
1167 if (!strncmp(s
, "pop_vlan", 8)) {
1168 nl_msg_put_flag(actions
, OVS_ACTION_ATTR_POP_VLAN
);
1176 if (ovs_scan(s
, "sample(sample=%lf%%,actions(%n", &percentage
, &n
)
1177 && percentage
>= 0. && percentage
<= 100.0) {
1178 size_t sample_ofs
, actions_ofs
;
1181 probability
= floor(UINT32_MAX
* (percentage
/ 100.0) + .5);
1182 sample_ofs
= nl_msg_start_nested(actions
, OVS_ACTION_ATTR_SAMPLE
);
1183 nl_msg_put_u32(actions
, OVS_SAMPLE_ATTR_PROBABILITY
,
1184 (probability
<= 0 ? 0
1185 : probability
>= UINT32_MAX
? UINT32_MAX
1188 actions_ofs
= nl_msg_start_nested(actions
,
1189 OVS_SAMPLE_ATTR_ACTIONS
);
1193 n
+= strspn(s
+ n
, delimiters
);
1198 retval
= parse_odp_action(s
+ n
, port_names
, actions
);
1204 nl_msg_end_nested(actions
, actions_ofs
);
1205 nl_msg_end_nested(actions
, sample_ofs
);
1207 return s
[n
+ 1] == ')' ? n
+ 2 : -EINVAL
;
1215 if (ovs_scan(s
, "tnl_pop(%"SCNi32
")%n", &port
, &n
)) {
1216 nl_msg_put_u32(actions
, OVS_ACTION_ATTR_TUNNEL_POP
, port
);
1222 struct ovs_action_push_tnl data
;
1225 n
= ovs_parse_tnl_push(s
, &data
);
1227 odp_put_tnl_push_action(actions
, &data
);
1236 /* Parses the string representation of datapath actions, in the format output
1237 * by format_odp_action(). Returns 0 if successful, otherwise a positive errno
1238 * value. On success, the ODP actions are appended to 'actions' as a series of
1239 * Netlink attributes. On failure, no data is appended to 'actions'. Either
1240 * way, 'actions''s data might be reallocated. */
1242 odp_actions_from_string(const char *s
, const struct simap
*port_names
,
1243 struct ofpbuf
*actions
)
1247 if (!strcasecmp(s
, "drop")) {
1251 old_size
= actions
->size
;
1255 s
+= strspn(s
, delimiters
);
1260 retval
= parse_odp_action(s
, port_names
, actions
);
1261 if (retval
< 0 || !strchr(delimiters
, s
[retval
])) {
1262 actions
->size
= old_size
;
1271 static const struct attr_len_tbl ovs_vxlan_ext_attr_lens
[OVS_VXLAN_EXT_MAX
+ 1] = {
1272 [OVS_VXLAN_EXT_GBP
] = { .len
= 4 },
1275 static const struct attr_len_tbl ovs_tun_key_attr_lens
[OVS_TUNNEL_KEY_ATTR_MAX
+ 1] = {
1276 [OVS_TUNNEL_KEY_ATTR_ID
] = { .len
= 8 },
1277 [OVS_TUNNEL_KEY_ATTR_IPV4_SRC
] = { .len
= 4 },
1278 [OVS_TUNNEL_KEY_ATTR_IPV4_DST
] = { .len
= 4 },
1279 [OVS_TUNNEL_KEY_ATTR_TOS
] = { .len
= 1 },
1280 [OVS_TUNNEL_KEY_ATTR_TTL
] = { .len
= 1 },
1281 [OVS_TUNNEL_KEY_ATTR_DONT_FRAGMENT
] = { .len
= 0 },
1282 [OVS_TUNNEL_KEY_ATTR_CSUM
] = { .len
= 0 },
1283 [OVS_TUNNEL_KEY_ATTR_TP_SRC
] = { .len
= 2 },
1284 [OVS_TUNNEL_KEY_ATTR_TP_DST
] = { .len
= 2 },
1285 [OVS_TUNNEL_KEY_ATTR_OAM
] = { .len
= 0 },
1286 [OVS_TUNNEL_KEY_ATTR_GENEVE_OPTS
] = { .len
= ATTR_LEN_VARIABLE
},
1287 [OVS_TUNNEL_KEY_ATTR_VXLAN_OPTS
] = { .len
= ATTR_LEN_NESTED
,
1288 .next
= ovs_vxlan_ext_attr_lens
,
1289 .next_max
= OVS_VXLAN_EXT_MAX
},
1292 static const struct attr_len_tbl ovs_flow_key_attr_lens
[OVS_KEY_ATTR_MAX
+ 1] = {
1293 [OVS_KEY_ATTR_ENCAP
] = { .len
= ATTR_LEN_NESTED
},
1294 [OVS_KEY_ATTR_PRIORITY
] = { .len
= 4 },
1295 [OVS_KEY_ATTR_SKB_MARK
] = { .len
= 4 },
1296 [OVS_KEY_ATTR_DP_HASH
] = { .len
= 4 },
1297 [OVS_KEY_ATTR_RECIRC_ID
] = { .len
= 4 },
1298 [OVS_KEY_ATTR_TUNNEL
] = { .len
= ATTR_LEN_NESTED
,
1299 .next
= ovs_tun_key_attr_lens
,
1300 .next_max
= OVS_TUNNEL_KEY_ATTR_MAX
},
1301 [OVS_KEY_ATTR_IN_PORT
] = { .len
= 4 },
1302 [OVS_KEY_ATTR_ETHERNET
] = { .len
= sizeof(struct ovs_key_ethernet
) },
1303 [OVS_KEY_ATTR_VLAN
] = { .len
= 2 },
1304 [OVS_KEY_ATTR_ETHERTYPE
] = { .len
= 2 },
1305 [OVS_KEY_ATTR_MPLS
] = { .len
= ATTR_LEN_VARIABLE
},
1306 [OVS_KEY_ATTR_IPV4
] = { .len
= sizeof(struct ovs_key_ipv4
) },
1307 [OVS_KEY_ATTR_IPV6
] = { .len
= sizeof(struct ovs_key_ipv6
) },
1308 [OVS_KEY_ATTR_TCP
] = { .len
= sizeof(struct ovs_key_tcp
) },
1309 [OVS_KEY_ATTR_TCP_FLAGS
] = { .len
= 2 },
1310 [OVS_KEY_ATTR_UDP
] = { .len
= sizeof(struct ovs_key_udp
) },
1311 [OVS_KEY_ATTR_SCTP
] = { .len
= sizeof(struct ovs_key_sctp
) },
1312 [OVS_KEY_ATTR_ICMP
] = { .len
= sizeof(struct ovs_key_icmp
) },
1313 [OVS_KEY_ATTR_ICMPV6
] = { .len
= sizeof(struct ovs_key_icmpv6
) },
1314 [OVS_KEY_ATTR_ARP
] = { .len
= sizeof(struct ovs_key_arp
) },
1315 [OVS_KEY_ATTR_ND
] = { .len
= sizeof(struct ovs_key_nd
) },
1318 /* Returns the correct length of the payload for a flow key attribute of the
1319 * specified 'type', ATTR_LEN_INVALID if 'type' is unknown, ATTR_LEN_VARIABLE
1320 * if the attribute's payload is variable length, or ATTR_LEN_NESTED if the
1321 * payload is a nested type. */
1323 odp_key_attr_len(const struct attr_len_tbl tbl
[], int max_len
, uint16_t type
)
1325 if (type
> max_len
) {
1326 return ATTR_LEN_INVALID
;
1329 return tbl
[type
].len
;
1333 format_generic_odp_key(const struct nlattr
*a
, struct ds
*ds
)
1335 size_t len
= nl_attr_get_size(a
);
1337 const uint8_t *unspec
;
1340 unspec
= nl_attr_get(a
);
1341 for (i
= 0; i
< len
; i
++) {
1343 ds_put_char(ds
, ' ');
1345 ds_put_format(ds
, "%02x", unspec
[i
]);
1351 ovs_frag_type_to_string(enum ovs_frag_type type
)
1354 case OVS_FRAG_TYPE_NONE
:
1356 case OVS_FRAG_TYPE_FIRST
:
1358 case OVS_FRAG_TYPE_LATER
:
1360 case __OVS_FRAG_TYPE_MAX
:
1366 static enum odp_key_fitness
1367 odp_tun_key_from_attr__(const struct nlattr
*attr
,
1368 const struct nlattr
*flow_attrs
, size_t flow_attr_len
,
1369 const struct flow_tnl
*src_tun
, struct flow_tnl
*tun
)
1372 const struct nlattr
*a
;
1374 bool unknown
= false;
1376 NL_NESTED_FOR_EACH(a
, left
, attr
) {
1377 uint16_t type
= nl_attr_type(a
);
1378 size_t len
= nl_attr_get_size(a
);
1379 int expected_len
= odp_key_attr_len(ovs_tun_key_attr_lens
,
1380 OVS_TUNNEL_ATTR_MAX
, type
);
1382 if (len
!= expected_len
&& expected_len
>= 0) {
1383 return ODP_FIT_ERROR
;
1387 case OVS_TUNNEL_KEY_ATTR_ID
:
1388 tun
->tun_id
= nl_attr_get_be64(a
);
1389 tun
->flags
|= FLOW_TNL_F_KEY
;
1391 case OVS_TUNNEL_KEY_ATTR_IPV4_SRC
:
1392 tun
->ip_src
= nl_attr_get_be32(a
);
1394 case OVS_TUNNEL_KEY_ATTR_IPV4_DST
:
1395 tun
->ip_dst
= nl_attr_get_be32(a
);
1397 case OVS_TUNNEL_KEY_ATTR_TOS
:
1398 tun
->ip_tos
= nl_attr_get_u8(a
);
1400 case OVS_TUNNEL_KEY_ATTR_TTL
:
1401 tun
->ip_ttl
= nl_attr_get_u8(a
);
1404 case OVS_TUNNEL_KEY_ATTR_DONT_FRAGMENT
:
1405 tun
->flags
|= FLOW_TNL_F_DONT_FRAGMENT
;
1407 case OVS_TUNNEL_KEY_ATTR_CSUM
:
1408 tun
->flags
|= FLOW_TNL_F_CSUM
;
1410 case OVS_TUNNEL_KEY_ATTR_TP_SRC
:
1411 tun
->tp_src
= nl_attr_get_be16(a
);
1413 case OVS_TUNNEL_KEY_ATTR_TP_DST
:
1414 tun
->tp_dst
= nl_attr_get_be16(a
);
1416 case OVS_TUNNEL_KEY_ATTR_OAM
:
1417 tun
->flags
|= FLOW_TNL_F_OAM
;
1419 case OVS_TUNNEL_KEY_ATTR_VXLAN_OPTS
: {
1420 static const struct nl_policy vxlan_opts_policy
[] = {
1421 [OVS_VXLAN_EXT_GBP
] = { .type
= NL_A_U32
},
1423 struct nlattr
*ext
[ARRAY_SIZE(vxlan_opts_policy
)];
1425 if (!nl_parse_nested(a
, vxlan_opts_policy
, ext
, ARRAY_SIZE(ext
))) {
1426 return ODP_FIT_ERROR
;
1429 if (ext
[OVS_VXLAN_EXT_GBP
]) {
1430 uint32_t gbp
= nl_attr_get_u32(ext
[OVS_VXLAN_EXT_GBP
]);
1432 tun
->gbp_id
= htons(gbp
& 0xFFFF);
1433 tun
->gbp_flags
= (gbp
>> 16) & 0xFF;
1438 case OVS_TUNNEL_KEY_ATTR_GENEVE_OPTS
:
1439 if (tun_metadata_from_geneve_nlattr(a
, flow_attrs
, flow_attr_len
,
1442 return ODP_FIT_ERROR
;
1447 /* Allow this to show up as unexpected, if there are unknown
1448 * tunnel attribute, eventually resulting in ODP_FIT_TOO_MUCH. */
1455 return ODP_FIT_ERROR
;
1458 return ODP_FIT_TOO_MUCH
;
1460 return ODP_FIT_PERFECT
;
1463 enum odp_key_fitness
1464 odp_tun_key_from_attr(const struct nlattr
*attr
, struct flow_tnl
*tun
)
1466 memset(tun
, 0, sizeof *tun
);
1467 return odp_tun_key_from_attr__(attr
, NULL
, 0, NULL
, tun
);
1471 tun_key_to_attr(struct ofpbuf
*a
, const struct flow_tnl
*tun_key
,
1472 const struct flow_tnl
*tun_flow_key
,
1473 const struct ofpbuf
*key_buf
)
1477 tun_key_ofs
= nl_msg_start_nested(a
, OVS_KEY_ATTR_TUNNEL
);
1479 /* tun_id != 0 without FLOW_TNL_F_KEY is valid if tun_key is a mask. */
1480 if (tun_key
->tun_id
|| tun_key
->flags
& FLOW_TNL_F_KEY
) {
1481 nl_msg_put_be64(a
, OVS_TUNNEL_KEY_ATTR_ID
, tun_key
->tun_id
);
1483 if (tun_key
->ip_src
) {
1484 nl_msg_put_be32(a
, OVS_TUNNEL_KEY_ATTR_IPV4_SRC
, tun_key
->ip_src
);
1486 if (tun_key
->ip_dst
) {
1487 nl_msg_put_be32(a
, OVS_TUNNEL_KEY_ATTR_IPV4_DST
, tun_key
->ip_dst
);
1489 if (tun_key
->ip_tos
) {
1490 nl_msg_put_u8(a
, OVS_TUNNEL_KEY_ATTR_TOS
, tun_key
->ip_tos
);
1492 nl_msg_put_u8(a
, OVS_TUNNEL_KEY_ATTR_TTL
, tun_key
->ip_ttl
);
1493 if (tun_key
->flags
& FLOW_TNL_F_DONT_FRAGMENT
) {
1494 nl_msg_put_flag(a
, OVS_TUNNEL_KEY_ATTR_DONT_FRAGMENT
);
1496 if (tun_key
->flags
& FLOW_TNL_F_CSUM
) {
1497 nl_msg_put_flag(a
, OVS_TUNNEL_KEY_ATTR_CSUM
);
1499 if (tun_key
->tp_src
) {
1500 nl_msg_put_be16(a
, OVS_TUNNEL_KEY_ATTR_TP_SRC
, tun_key
->tp_src
);
1502 if (tun_key
->tp_dst
) {
1503 nl_msg_put_be16(a
, OVS_TUNNEL_KEY_ATTR_TP_DST
, tun_key
->tp_dst
);
1505 if (tun_key
->flags
& FLOW_TNL_F_OAM
) {
1506 nl_msg_put_flag(a
, OVS_TUNNEL_KEY_ATTR_OAM
);
1508 if (tun_key
->gbp_flags
|| tun_key
->gbp_id
) {
1509 size_t vxlan_opts_ofs
;
1511 vxlan_opts_ofs
= nl_msg_start_nested(a
, OVS_TUNNEL_KEY_ATTR_VXLAN_OPTS
);
1512 nl_msg_put_u32(a
, OVS_VXLAN_EXT_GBP
,
1513 (tun_key
->gbp_flags
<< 16) | ntohs(tun_key
->gbp_id
));
1514 nl_msg_end_nested(a
, vxlan_opts_ofs
);
1517 if (tun_key
== tun_flow_key
) {
1518 tun_metadata_to_geneve_nlattr_flow(&tun_key
->metadata
, a
);
1520 tun_metadata_to_geneve_nlattr_mask(key_buf
, &tun_key
->metadata
,
1521 &tun_flow_key
->metadata
, a
);
1524 nl_msg_end_nested(a
, tun_key_ofs
);
1528 odp_mask_attr_is_wildcard(const struct nlattr
*ma
)
1530 return is_all_zeros(nl_attr_get(ma
), nl_attr_get_size(ma
));
1534 odp_mask_is_exact(enum ovs_key_attr attr
, const void *mask
, size_t size
)
1536 if (attr
== OVS_KEY_ATTR_TCP_FLAGS
) {
1537 return TCP_FLAGS(*(ovs_be16
*)mask
) == TCP_FLAGS(OVS_BE16_MAX
);
1539 if (attr
== OVS_KEY_ATTR_IPV6
) {
1540 const struct ovs_key_ipv6
*ipv6_mask
= mask
;
1543 ((ipv6_mask
->ipv6_label
& htonl(IPV6_LABEL_MASK
))
1544 == htonl(IPV6_LABEL_MASK
))
1545 && ipv6_mask
->ipv6_proto
== UINT8_MAX
1546 && ipv6_mask
->ipv6_tclass
== UINT8_MAX
1547 && ipv6_mask
->ipv6_hlimit
== UINT8_MAX
1548 && ipv6_mask
->ipv6_frag
== UINT8_MAX
1549 && ipv6_mask_is_exact((const struct in6_addr
*)ipv6_mask
->ipv6_src
)
1550 && ipv6_mask_is_exact((const struct in6_addr
*)ipv6_mask
->ipv6_dst
);
1552 if (attr
== OVS_KEY_ATTR_TUNNEL
) {
1556 if (attr
== OVS_KEY_ATTR_ARP
) {
1557 /* ARP key has padding, ignore it. */
1558 BUILD_ASSERT_DECL(sizeof(struct ovs_key_arp
) == 24);
1559 BUILD_ASSERT_DECL(offsetof(struct ovs_key_arp
, arp_tha
) == 10 + 6);
1560 size
= offsetof(struct ovs_key_arp
, arp_tha
) + ETH_ADDR_LEN
;
1561 ovs_assert(((uint16_t *)mask
)[size
/2] == 0);
1564 return is_all_ones(mask
, size
);
1568 odp_mask_attr_is_exact(const struct nlattr
*ma
)
1570 enum ovs_key_attr attr
= nl_attr_type(ma
);
1574 if (attr
== OVS_KEY_ATTR_TUNNEL
) {
1577 mask
= nl_attr_get(ma
);
1578 size
= nl_attr_get_size(ma
);
1581 return odp_mask_is_exact(attr
, mask
, size
);
1585 odp_portno_names_set(struct hmap
*portno_names
, odp_port_t port_no
,
1588 struct odp_portno_names
*odp_portno_names
;
1590 odp_portno_names
= xmalloc(sizeof *odp_portno_names
);
1591 odp_portno_names
->port_no
= port_no
;
1592 odp_portno_names
->name
= xstrdup(port_name
);
1593 hmap_insert(portno_names
, &odp_portno_names
->hmap_node
,
1594 hash_odp_port(port_no
));
1598 odp_portno_names_get(const struct hmap
*portno_names
, odp_port_t port_no
)
1600 struct odp_portno_names
*odp_portno_names
;
1602 HMAP_FOR_EACH_IN_BUCKET (odp_portno_names
, hmap_node
,
1603 hash_odp_port(port_no
), portno_names
) {
1604 if (odp_portno_names
->port_no
== port_no
) {
1605 return odp_portno_names
->name
;
1612 odp_portno_names_destroy(struct hmap
*portno_names
)
1614 struct odp_portno_names
*odp_portno_names
, *odp_portno_names_next
;
1615 HMAP_FOR_EACH_SAFE (odp_portno_names
, odp_portno_names_next
,
1616 hmap_node
, portno_names
) {
1617 hmap_remove(portno_names
, &odp_portno_names
->hmap_node
);
1618 free(odp_portno_names
->name
);
1619 free(odp_portno_names
);
1623 /* Format helpers. */
1626 format_eth(struct ds
*ds
, const char *name
, const uint8_t key
[ETH_ADDR_LEN
],
1627 const uint8_t (*mask
)[ETH_ADDR_LEN
], bool verbose
)
1629 bool mask_empty
= mask
&& eth_addr_is_zero(*mask
);
1631 if (verbose
|| !mask_empty
) {
1632 bool mask_full
= !mask
|| eth_mask_is_exact(*mask
);
1635 ds_put_format(ds
, "%s="ETH_ADDR_FMT
",", name
, ETH_ADDR_ARGS(key
));
1637 ds_put_format(ds
, "%s=", name
);
1638 eth_format_masked(key
, *mask
, ds
);
1639 ds_put_char(ds
, ',');
1645 format_be64(struct ds
*ds
, const char *name
, ovs_be64 key
,
1646 const ovs_be64
*mask
, bool verbose
)
1648 bool mask_empty
= mask
&& !*mask
;
1650 if (verbose
|| !mask_empty
) {
1651 bool mask_full
= !mask
|| *mask
== OVS_BE64_MAX
;
1653 ds_put_format(ds
, "%s=0x%"PRIx64
, name
, ntohll(key
));
1654 if (!mask_full
) { /* Partially masked. */
1655 ds_put_format(ds
, "/%#"PRIx64
, ntohll(*mask
));
1657 ds_put_char(ds
, ',');
1662 format_ipv4(struct ds
*ds
, const char *name
, ovs_be32 key
,
1663 const ovs_be32
*mask
, bool verbose
)
1665 bool mask_empty
= mask
&& !*mask
;
1667 if (verbose
|| !mask_empty
) {
1668 bool mask_full
= !mask
|| *mask
== OVS_BE32_MAX
;
1670 ds_put_format(ds
, "%s="IP_FMT
, name
, IP_ARGS(key
));
1671 if (!mask_full
) { /* Partially masked. */
1672 ds_put_format(ds
, "/"IP_FMT
, IP_ARGS(*mask
));
1674 ds_put_char(ds
, ',');
1679 format_ipv6(struct ds
*ds
, const char *name
, const ovs_be32 key_
[4],
1680 const ovs_be32 (*mask_
)[4], bool verbose
)
1682 char buf
[INET6_ADDRSTRLEN
];
1683 const struct in6_addr
*key
= (const struct in6_addr
*)key_
;
1684 const struct in6_addr
*mask
= mask_
? (const struct in6_addr
*)*mask_
1686 bool mask_empty
= mask
&& ipv6_mask_is_any(mask
);
1688 if (verbose
|| !mask_empty
) {
1689 bool mask_full
= !mask
|| ipv6_mask_is_exact(mask
);
1691 inet_ntop(AF_INET6
, key
, buf
, sizeof buf
);
1692 ds_put_format(ds
, "%s=%s", name
, buf
);
1693 if (!mask_full
) { /* Partially masked. */
1694 inet_ntop(AF_INET6
, mask
, buf
, sizeof buf
);
1695 ds_put_format(ds
, "/%s", buf
);
1697 ds_put_char(ds
, ',');
1702 format_ipv6_label(struct ds
*ds
, const char *name
, ovs_be32 key
,
1703 const ovs_be32
*mask
, bool verbose
)
1705 bool mask_empty
= mask
&& !*mask
;
1707 if (verbose
|| !mask_empty
) {
1708 bool mask_full
= !mask
1709 || (*mask
& htonl(IPV6_LABEL_MASK
)) == htonl(IPV6_LABEL_MASK
);
1711 ds_put_format(ds
, "%s=%#"PRIx32
, name
, ntohl(key
));
1712 if (!mask_full
) { /* Partially masked. */
1713 ds_put_format(ds
, "/%#"PRIx32
, ntohl(*mask
));
1715 ds_put_char(ds
, ',');
1720 format_u8x(struct ds
*ds
, const char *name
, uint8_t key
,
1721 const uint8_t *mask
, bool verbose
)
1723 bool mask_empty
= mask
&& !*mask
;
1725 if (verbose
|| !mask_empty
) {
1726 bool mask_full
= !mask
|| *mask
== UINT8_MAX
;
1728 ds_put_format(ds
, "%s=%#"PRIx8
, name
, key
);
1729 if (!mask_full
) { /* Partially masked. */
1730 ds_put_format(ds
, "/%#"PRIx8
, *mask
);
1732 ds_put_char(ds
, ',');
1737 format_u8u(struct ds
*ds
, const char *name
, uint8_t key
,
1738 const uint8_t *mask
, bool verbose
)
1740 bool mask_empty
= mask
&& !*mask
;
1742 if (verbose
|| !mask_empty
) {
1743 bool mask_full
= !mask
|| *mask
== UINT8_MAX
;
1745 ds_put_format(ds
, "%s=%"PRIu8
, name
, key
);
1746 if (!mask_full
) { /* Partially masked. */
1747 ds_put_format(ds
, "/%#"PRIx8
, *mask
);
1749 ds_put_char(ds
, ',');
1754 format_be16(struct ds
*ds
, const char *name
, ovs_be16 key
,
1755 const ovs_be16
*mask
, bool verbose
)
1757 bool mask_empty
= mask
&& !*mask
;
1759 if (verbose
|| !mask_empty
) {
1760 bool mask_full
= !mask
|| *mask
== OVS_BE16_MAX
;
1762 ds_put_format(ds
, "%s=%"PRIu16
, name
, ntohs(key
));
1763 if (!mask_full
) { /* Partially masked. */
1764 ds_put_format(ds
, "/%#"PRIx16
, ntohs(*mask
));
1766 ds_put_char(ds
, ',');
1771 format_be16x(struct ds
*ds
, const char *name
, ovs_be16 key
,
1772 const ovs_be16
*mask
, bool verbose
)
1774 bool mask_empty
= mask
&& !*mask
;
1776 if (verbose
|| !mask_empty
) {
1777 bool mask_full
= !mask
|| *mask
== OVS_BE16_MAX
;
1779 ds_put_format(ds
, "%s=%#"PRIx16
, name
, ntohs(key
));
1780 if (!mask_full
) { /* Partially masked. */
1781 ds_put_format(ds
, "/%#"PRIx16
, ntohs(*mask
));
1783 ds_put_char(ds
, ',');
1788 format_tun_flags(struct ds
*ds
, const char *name
, uint16_t key
,
1789 const uint16_t *mask
, bool verbose
)
1791 bool mask_empty
= mask
&& !*mask
;
1793 if (verbose
|| !mask_empty
) {
1794 bool mask_full
= !mask
|| (*mask
& FLOW_TNL_F_MASK
) == FLOW_TNL_F_MASK
;
1796 ds_put_cstr(ds
, name
);
1797 ds_put_char(ds
, '(');
1798 if (!mask_full
) { /* Partially masked. */
1799 format_flags_masked(ds
, NULL
, flow_tun_flag_to_string
, key
, *mask
);
1800 } else { /* Fully masked. */
1801 format_flags(ds
, flow_tun_flag_to_string
, key
, ',');
1803 ds_put_cstr(ds
, "),");
1808 check_attr_len(struct ds
*ds
, const struct nlattr
*a
, const struct nlattr
*ma
,
1809 const struct attr_len_tbl tbl
[], int max_len
, bool need_key
)
1813 expected_len
= odp_key_attr_len(tbl
, max_len
, nl_attr_type(a
));
1814 if (expected_len
!= ATTR_LEN_VARIABLE
&&
1815 expected_len
!= ATTR_LEN_NESTED
) {
1817 bool bad_key_len
= nl_attr_get_size(a
) != expected_len
;
1818 bool bad_mask_len
= ma
&& nl_attr_get_size(ma
) != expected_len
;
1820 if (bad_key_len
|| bad_mask_len
) {
1822 ds_put_format(ds
, "key%u", nl_attr_type(a
));
1825 ds_put_format(ds
, "(bad key length %"PRIuSIZE
", expected %d)(",
1826 nl_attr_get_size(a
), expected_len
);
1828 format_generic_odp_key(a
, ds
);
1830 ds_put_char(ds
, '/');
1832 ds_put_format(ds
, "(bad mask length %"PRIuSIZE
", expected %d)(",
1833 nl_attr_get_size(ma
), expected_len
);
1835 format_generic_odp_key(ma
, ds
);
1837 ds_put_char(ds
, ')');
1846 format_unknown_key(struct ds
*ds
, const struct nlattr
*a
,
1847 const struct nlattr
*ma
)
1849 ds_put_format(ds
, "key%u(", nl_attr_type(a
));
1850 format_generic_odp_key(a
, ds
);
1851 if (ma
&& !odp_mask_attr_is_exact(ma
)) {
1852 ds_put_char(ds
, '/');
1853 format_generic_odp_key(ma
, ds
);
1855 ds_put_cstr(ds
, "),");
1859 format_odp_tun_vxlan_opt(const struct nlattr
*attr
,
1860 const struct nlattr
*mask_attr
, struct ds
*ds
,
1864 const struct nlattr
*a
;
1867 ofpbuf_init(&ofp
, 100);
1868 NL_NESTED_FOR_EACH(a
, left
, attr
) {
1869 uint16_t type
= nl_attr_type(a
);
1870 const struct nlattr
*ma
= NULL
;
1873 ma
= nl_attr_find__(nl_attr_get(mask_attr
),
1874 nl_attr_get_size(mask_attr
), type
);
1876 ma
= generate_all_wildcard_mask(ovs_vxlan_ext_attr_lens
,
1882 if (!check_attr_len(ds
, a
, ma
, ovs_vxlan_ext_attr_lens
,
1883 OVS_VXLAN_EXT_MAX
, true)) {
1888 case OVS_VXLAN_EXT_GBP
: {
1889 uint32_t key
= nl_attr_get_u32(a
);
1890 ovs_be16 id
, id_mask
;
1891 uint8_t flags
, flags_mask
;
1893 id
= htons(key
& 0xFFFF);
1894 flags
= (key
>> 16) & 0xFF;
1896 uint32_t mask
= nl_attr_get_u32(ma
);
1897 id_mask
= htons(mask
& 0xFFFF);
1898 flags_mask
= (mask
>> 16) & 0xFF;
1901 ds_put_cstr(ds
, "gbp(");
1902 format_be16(ds
, "id", id
, ma
? &id_mask
: NULL
, verbose
);
1903 format_u8x(ds
, "flags", flags
, ma
? &flags_mask
: NULL
, verbose
);
1905 ds_put_cstr(ds
, "),");
1910 format_unknown_key(ds
, a
, ma
);
1916 ofpbuf_uninit(&ofp
);
1919 #define MASK(PTR, FIELD) PTR ? &PTR->FIELD : NULL
1922 format_geneve_opts(const struct geneve_opt
*opt
,
1923 const struct geneve_opt
*mask
, int opts_len
,
1924 struct ds
*ds
, bool verbose
)
1926 while (opts_len
> 0) {
1928 uint8_t data_len
, data_len_mask
;
1930 if (opts_len
< sizeof *opt
) {
1931 ds_put_format(ds
, "opt len %u less than minimum %"PRIuSIZE
,
1932 opts_len
, sizeof *opt
);
1936 data_len
= opt
->length
* 4;
1938 if (mask
->length
== 0x1f) {
1939 data_len_mask
= UINT8_MAX
;
1941 data_len_mask
= mask
->length
;
1944 len
= sizeof *opt
+ data_len
;
1945 if (len
> opts_len
) {
1946 ds_put_format(ds
, "opt len %u greater than remaining %u",
1951 ds_put_char(ds
, '{');
1952 format_be16x(ds
, "class", opt
->opt_class
, MASK(mask
, opt_class
),
1954 format_u8x(ds
, "type", opt
->type
, MASK(mask
, type
), verbose
);
1955 format_u8u(ds
, "len", data_len
, mask
? &data_len_mask
: NULL
, verbose
);
1956 if (verbose
|| !mask
|| !is_all_zeros(mask
+ 1, data_len
)) {
1957 ds_put_hex(ds
, opt
+ 1, data_len
);
1958 if (mask
&& !is_all_ones(mask
+ 1, data_len
)) {
1959 ds_put_char(ds
, '/');
1960 ds_put_hex(ds
, mask
+ 1, data_len
);
1965 ds_put_char(ds
, '}');
1967 opt
+= len
/ sizeof(*opt
);
1969 mask
+= len
/ sizeof(*opt
);
1976 format_odp_tun_geneve(const struct nlattr
*attr
,
1977 const struct nlattr
*mask_attr
, struct ds
*ds
,
1980 int opts_len
= nl_attr_get_size(attr
);
1981 const struct geneve_opt
*opt
= nl_attr_get(attr
);
1982 const struct geneve_opt
*mask
= mask_attr
?
1983 nl_attr_get(mask_attr
) : NULL
;
1985 if (mask
&& nl_attr_get_size(attr
) != nl_attr_get_size(mask_attr
)) {
1986 ds_put_format(ds
, "value len %"PRIuSIZE
" different from mask len %"PRIuSIZE
,
1987 nl_attr_get_size(attr
), nl_attr_get_size(mask_attr
));
1991 format_geneve_opts(opt
, mask
, opts_len
, ds
, verbose
);
1995 format_odp_tun_attr(const struct nlattr
*attr
, const struct nlattr
*mask_attr
,
1996 struct ds
*ds
, bool verbose
)
1999 const struct nlattr
*a
;
2001 uint16_t mask_flags
= 0;
2004 ofpbuf_init(&ofp
, 100);
2005 NL_NESTED_FOR_EACH(a
, left
, attr
) {
2006 enum ovs_tunnel_key_attr type
= nl_attr_type(a
);
2007 const struct nlattr
*ma
= NULL
;
2010 ma
= nl_attr_find__(nl_attr_get(mask_attr
),
2011 nl_attr_get_size(mask_attr
), type
);
2013 ma
= generate_all_wildcard_mask(ovs_tun_key_attr_lens
,
2014 OVS_TUNNEL_KEY_ATTR_MAX
,
2019 if (!check_attr_len(ds
, a
, ma
, ovs_tun_key_attr_lens
,
2020 OVS_TUNNEL_KEY_ATTR_MAX
, true)) {
2025 case OVS_TUNNEL_KEY_ATTR_ID
:
2026 format_be64(ds
, "tun_id", nl_attr_get_be64(a
),
2027 ma
? nl_attr_get(ma
) : NULL
, verbose
);
2028 flags
|= FLOW_TNL_F_KEY
;
2030 mask_flags
|= FLOW_TNL_F_KEY
;
2033 case OVS_TUNNEL_KEY_ATTR_IPV4_SRC
:
2034 format_ipv4(ds
, "src", nl_attr_get_be32(a
),
2035 ma
? nl_attr_get(ma
) : NULL
, verbose
);
2037 case OVS_TUNNEL_KEY_ATTR_IPV4_DST
:
2038 format_ipv4(ds
, "dst", nl_attr_get_be32(a
),
2039 ma
? nl_attr_get(ma
) : NULL
, verbose
);
2041 case OVS_TUNNEL_KEY_ATTR_TOS
:
2042 format_u8x(ds
, "tos", nl_attr_get_u8(a
),
2043 ma
? nl_attr_get(ma
) : NULL
, verbose
);
2045 case OVS_TUNNEL_KEY_ATTR_TTL
:
2046 format_u8u(ds
, "ttl", nl_attr_get_u8(a
),
2047 ma
? nl_attr_get(ma
) : NULL
, verbose
);
2049 case OVS_TUNNEL_KEY_ATTR_DONT_FRAGMENT
:
2050 flags
|= FLOW_TNL_F_DONT_FRAGMENT
;
2052 case OVS_TUNNEL_KEY_ATTR_CSUM
:
2053 flags
|= FLOW_TNL_F_CSUM
;
2055 case OVS_TUNNEL_KEY_ATTR_TP_SRC
:
2056 format_be16(ds
, "tp_src", nl_attr_get_be16(a
),
2057 ma
? nl_attr_get(ma
) : NULL
, verbose
);
2059 case OVS_TUNNEL_KEY_ATTR_TP_DST
:
2060 format_be16(ds
, "tp_dst", nl_attr_get_be16(a
),
2061 ma
? nl_attr_get(ma
) : NULL
, verbose
);
2063 case OVS_TUNNEL_KEY_ATTR_OAM
:
2064 flags
|= FLOW_TNL_F_OAM
;
2066 case OVS_TUNNEL_KEY_ATTR_VXLAN_OPTS
:
2067 ds_put_cstr(ds
, "vxlan(");
2068 format_odp_tun_vxlan_opt(a
, ma
, ds
, verbose
);
2069 ds_put_cstr(ds
, "),");
2071 case OVS_TUNNEL_KEY_ATTR_GENEVE_OPTS
:
2072 ds_put_cstr(ds
, "geneve(");
2073 format_odp_tun_geneve(a
, ma
, ds
, verbose
);
2074 ds_put_cstr(ds
, "),");
2076 case __OVS_TUNNEL_KEY_ATTR_MAX
:
2078 format_unknown_key(ds
, a
, ma
);
2083 /* Flags can have a valid mask even if the attribute is not set, so
2084 * we need to collect these separately. */
2086 NL_NESTED_FOR_EACH(a
, left
, mask_attr
) {
2087 switch (nl_attr_type(a
)) {
2088 case OVS_TUNNEL_KEY_ATTR_DONT_FRAGMENT
:
2089 mask_flags
|= FLOW_TNL_F_DONT_FRAGMENT
;
2091 case OVS_TUNNEL_KEY_ATTR_CSUM
:
2092 mask_flags
|= FLOW_TNL_F_CSUM
;
2094 case OVS_TUNNEL_KEY_ATTR_OAM
:
2095 mask_flags
|= FLOW_TNL_F_OAM
;
2101 format_tun_flags(ds
, "flags", flags
, mask_attr
? &mask_flags
: NULL
,
2104 ofpbuf_uninit(&ofp
);
2108 format_frag(struct ds
*ds
, const char *name
, uint8_t key
,
2109 const uint8_t *mask
, bool verbose
)
2111 bool mask_empty
= mask
&& !*mask
;
2113 /* ODP frag is an enumeration field; partial masks are not meaningful. */
2114 if (verbose
|| !mask_empty
) {
2115 bool mask_full
= !mask
|| *mask
== UINT8_MAX
;
2117 if (!mask_full
) { /* Partially masked. */
2118 ds_put_format(ds
, "error: partial mask not supported for frag (%#"
2121 ds_put_format(ds
, "%s=%s,", name
, ovs_frag_type_to_string(key
));
2127 format_odp_key_attr(const struct nlattr
*a
, const struct nlattr
*ma
,
2128 const struct hmap
*portno_names
, struct ds
*ds
,
2131 enum ovs_key_attr attr
= nl_attr_type(a
);
2132 char namebuf
[OVS_KEY_ATTR_BUFSIZE
];
2135 is_exact
= ma
? odp_mask_attr_is_exact(ma
) : true;
2137 ds_put_cstr(ds
, ovs_key_attr_to_string(attr
, namebuf
, sizeof namebuf
));
2139 if (!check_attr_len(ds
, a
, ma
, ovs_flow_key_attr_lens
,
2140 OVS_KEY_ATTR_MAX
, false)) {
2144 ds_put_char(ds
, '(');
2146 case OVS_KEY_ATTR_ENCAP
:
2147 if (ma
&& nl_attr_get_size(ma
) && nl_attr_get_size(a
)) {
2148 odp_flow_format(nl_attr_get(a
), nl_attr_get_size(a
),
2149 nl_attr_get(ma
), nl_attr_get_size(ma
), NULL
, ds
,
2151 } else if (nl_attr_get_size(a
)) {
2152 odp_flow_format(nl_attr_get(a
), nl_attr_get_size(a
), NULL
, 0, NULL
,
2157 case OVS_KEY_ATTR_PRIORITY
:
2158 case OVS_KEY_ATTR_SKB_MARK
:
2159 case OVS_KEY_ATTR_DP_HASH
:
2160 case OVS_KEY_ATTR_RECIRC_ID
:
2161 ds_put_format(ds
, "%#"PRIx32
, nl_attr_get_u32(a
));
2163 ds_put_format(ds
, "/%#"PRIx32
, nl_attr_get_u32(ma
));
2167 case OVS_KEY_ATTR_TUNNEL
:
2168 format_odp_tun_attr(a
, ma
, ds
, verbose
);
2171 case OVS_KEY_ATTR_IN_PORT
:
2172 if (portno_names
&& verbose
&& is_exact
) {
2173 char *name
= odp_portno_names_get(portno_names
,
2174 u32_to_odp(nl_attr_get_u32(a
)));
2176 ds_put_format(ds
, "%s", name
);
2178 ds_put_format(ds
, "%"PRIu32
, nl_attr_get_u32(a
));
2181 ds_put_format(ds
, "%"PRIu32
, nl_attr_get_u32(a
));
2183 ds_put_format(ds
, "/%#"PRIx32
, nl_attr_get_u32(ma
));
2188 case OVS_KEY_ATTR_ETHERNET
: {
2189 const struct ovs_key_ethernet
*mask
= ma
? nl_attr_get(ma
) : NULL
;
2190 const struct ovs_key_ethernet
*key
= nl_attr_get(a
);
2192 format_eth(ds
, "src", key
->eth_src
, MASK(mask
, eth_src
), verbose
);
2193 format_eth(ds
, "dst", key
->eth_dst
, MASK(mask
, eth_dst
), verbose
);
2197 case OVS_KEY_ATTR_VLAN
:
2198 format_vlan_tci(ds
, nl_attr_get_be16(a
),
2199 ma
? nl_attr_get_be16(ma
) : OVS_BE16_MAX
, verbose
);
2202 case OVS_KEY_ATTR_MPLS
: {
2203 const struct ovs_key_mpls
*mpls_key
= nl_attr_get(a
);
2204 const struct ovs_key_mpls
*mpls_mask
= NULL
;
2205 size_t size
= nl_attr_get_size(a
);
2207 if (!size
|| size
% sizeof *mpls_key
) {
2208 ds_put_format(ds
, "(bad key length %"PRIuSIZE
")", size
);
2212 mpls_mask
= nl_attr_get(ma
);
2213 if (size
!= nl_attr_get_size(ma
)) {
2214 ds_put_format(ds
, "(key length %"PRIuSIZE
" != "
2215 "mask length %"PRIuSIZE
")",
2216 size
, nl_attr_get_size(ma
));
2220 format_mpls(ds
, mpls_key
, mpls_mask
, size
/ sizeof *mpls_key
);
2223 case OVS_KEY_ATTR_ETHERTYPE
:
2224 ds_put_format(ds
, "0x%04"PRIx16
, ntohs(nl_attr_get_be16(a
)));
2226 ds_put_format(ds
, "/0x%04"PRIx16
, ntohs(nl_attr_get_be16(ma
)));
2230 case OVS_KEY_ATTR_IPV4
: {
2231 const struct ovs_key_ipv4
*key
= nl_attr_get(a
);
2232 const struct ovs_key_ipv4
*mask
= ma
? nl_attr_get(ma
) : NULL
;
2234 format_ipv4(ds
, "src", key
->ipv4_src
, MASK(mask
, ipv4_src
), verbose
);
2235 format_ipv4(ds
, "dst", key
->ipv4_dst
, MASK(mask
, ipv4_dst
), verbose
);
2236 format_u8u(ds
, "proto", key
->ipv4_proto
, MASK(mask
, ipv4_proto
),
2238 format_u8x(ds
, "tos", key
->ipv4_tos
, MASK(mask
, ipv4_tos
), verbose
);
2239 format_u8u(ds
, "ttl", key
->ipv4_ttl
, MASK(mask
, ipv4_ttl
), verbose
);
2240 format_frag(ds
, "frag", key
->ipv4_frag
, MASK(mask
, ipv4_frag
),
2245 case OVS_KEY_ATTR_IPV6
: {
2246 const struct ovs_key_ipv6
*key
= nl_attr_get(a
);
2247 const struct ovs_key_ipv6
*mask
= ma
? nl_attr_get(ma
) : NULL
;
2249 format_ipv6(ds
, "src", key
->ipv6_src
, MASK(mask
, ipv6_src
), verbose
);
2250 format_ipv6(ds
, "dst", key
->ipv6_dst
, MASK(mask
, ipv6_dst
), verbose
);
2251 format_ipv6_label(ds
, "label", key
->ipv6_label
, MASK(mask
, ipv6_label
),
2253 format_u8u(ds
, "proto", key
->ipv6_proto
, MASK(mask
, ipv6_proto
),
2255 format_u8x(ds
, "tclass", key
->ipv6_tclass
, MASK(mask
, ipv6_tclass
),
2257 format_u8u(ds
, "hlimit", key
->ipv6_hlimit
, MASK(mask
, ipv6_hlimit
),
2259 format_frag(ds
, "frag", key
->ipv6_frag
, MASK(mask
, ipv6_frag
),
2264 /* These have the same structure and format. */
2265 case OVS_KEY_ATTR_TCP
:
2266 case OVS_KEY_ATTR_UDP
:
2267 case OVS_KEY_ATTR_SCTP
: {
2268 const struct ovs_key_tcp
*key
= nl_attr_get(a
);
2269 const struct ovs_key_tcp
*mask
= ma
? nl_attr_get(ma
) : NULL
;
2271 format_be16(ds
, "src", key
->tcp_src
, MASK(mask
, tcp_src
), verbose
);
2272 format_be16(ds
, "dst", key
->tcp_dst
, MASK(mask
, tcp_dst
), verbose
);
2276 case OVS_KEY_ATTR_TCP_FLAGS
:
2278 format_flags_masked(ds
, NULL
, packet_tcp_flag_to_string
,
2279 ntohs(nl_attr_get_be16(a
)),
2280 ntohs(nl_attr_get_be16(ma
)));
2282 format_flags(ds
, packet_tcp_flag_to_string
,
2283 ntohs(nl_attr_get_be16(a
)), ',');
2287 case OVS_KEY_ATTR_ICMP
: {
2288 const struct ovs_key_icmp
*key
= nl_attr_get(a
);
2289 const struct ovs_key_icmp
*mask
= ma
? nl_attr_get(ma
) : NULL
;
2291 format_u8u(ds
, "type", key
->icmp_type
, MASK(mask
, icmp_type
), verbose
);
2292 format_u8u(ds
, "code", key
->icmp_code
, MASK(mask
, icmp_code
), verbose
);
2296 case OVS_KEY_ATTR_ICMPV6
: {
2297 const struct ovs_key_icmpv6
*key
= nl_attr_get(a
);
2298 const struct ovs_key_icmpv6
*mask
= ma
? nl_attr_get(ma
) : NULL
;
2300 format_u8u(ds
, "type", key
->icmpv6_type
, MASK(mask
, icmpv6_type
),
2302 format_u8u(ds
, "code", key
->icmpv6_code
, MASK(mask
, icmpv6_code
),
2307 case OVS_KEY_ATTR_ARP
: {
2308 const struct ovs_key_arp
*mask
= ma
? nl_attr_get(ma
) : NULL
;
2309 const struct ovs_key_arp
*key
= nl_attr_get(a
);
2311 format_ipv4(ds
, "sip", key
->arp_sip
, MASK(mask
, arp_sip
), verbose
);
2312 format_ipv4(ds
, "tip", key
->arp_tip
, MASK(mask
, arp_tip
), verbose
);
2313 format_be16(ds
, "op", key
->arp_op
, MASK(mask
, arp_op
), verbose
);
2314 format_eth(ds
, "sha", key
->arp_sha
, MASK(mask
, arp_sha
), verbose
);
2315 format_eth(ds
, "tha", key
->arp_tha
, MASK(mask
, arp_tha
), verbose
);
2319 case OVS_KEY_ATTR_ND
: {
2320 const struct ovs_key_nd
*mask
= ma
? nl_attr_get(ma
) : NULL
;
2321 const struct ovs_key_nd
*key
= nl_attr_get(a
);
2323 format_ipv6(ds
, "target", key
->nd_target
, MASK(mask
, nd_target
),
2325 format_eth(ds
, "sll", key
->nd_sll
, MASK(mask
, nd_sll
), verbose
);
2326 format_eth(ds
, "tll", key
->nd_tll
, MASK(mask
, nd_tll
), verbose
);
2331 case OVS_KEY_ATTR_UNSPEC
:
2332 case __OVS_KEY_ATTR_MAX
:
2334 format_generic_odp_key(a
, ds
);
2336 ds_put_char(ds
, '/');
2337 format_generic_odp_key(ma
, ds
);
2341 ds_put_char(ds
, ')');
2344 static struct nlattr
*
2345 generate_all_wildcard_mask(const struct attr_len_tbl tbl
[], int max
,
2346 struct ofpbuf
*ofp
, const struct nlattr
*key
)
2348 const struct nlattr
*a
;
2350 int type
= nl_attr_type(key
);
2351 int size
= nl_attr_get_size(key
);
2353 if (odp_key_attr_len(tbl
, max
, type
) != ATTR_LEN_NESTED
) {
2354 nl_msg_put_unspec_zero(ofp
, type
, size
);
2358 if (tbl
[type
].next
) {
2359 tbl
= tbl
[type
].next
;
2360 max
= tbl
[type
].next_max
;
2363 nested_mask
= nl_msg_start_nested(ofp
, type
);
2364 NL_ATTR_FOR_EACH(a
, left
, key
, nl_attr_get_size(key
)) {
2365 generate_all_wildcard_mask(tbl
, max
, ofp
, nl_attr_get(a
));
2367 nl_msg_end_nested(ofp
, nested_mask
);
2374 odp_ufid_from_string(const char *s_
, ovs_u128
*ufid
)
2378 if (ovs_scan(s
, "ufid:")) {
2381 if (!uuid_from_string_prefix((struct uuid
*)ufid
, s
)) {
2393 odp_format_ufid(const ovs_u128
*ufid
, struct ds
*ds
)
2395 ds_put_format(ds
, "ufid:"UUID_FMT
, UUID_ARGS((struct uuid
*)ufid
));
2398 /* Appends to 'ds' a string representation of the 'key_len' bytes of
2399 * OVS_KEY_ATTR_* attributes in 'key'. If non-null, additionally formats the
2400 * 'mask_len' bytes of 'mask' which apply to 'key'. If 'portno_names' is
2401 * non-null and 'verbose' is true, translates odp port number to its name. */
2403 odp_flow_format(const struct nlattr
*key
, size_t key_len
,
2404 const struct nlattr
*mask
, size_t mask_len
,
2405 const struct hmap
*portno_names
, struct ds
*ds
, bool verbose
)
2408 const struct nlattr
*a
;
2410 bool has_ethtype_key
= false;
2411 const struct nlattr
*ma
= NULL
;
2413 bool first_field
= true;
2415 ofpbuf_init(&ofp
, 100);
2416 NL_ATTR_FOR_EACH (a
, left
, key
, key_len
) {
2417 bool is_nested_attr
;
2418 bool is_wildcard
= false;
2419 int attr_type
= nl_attr_type(a
);
2421 if (attr_type
== OVS_KEY_ATTR_ETHERTYPE
) {
2422 has_ethtype_key
= true;
2425 is_nested_attr
= odp_key_attr_len(ovs_flow_key_attr_lens
,
2426 OVS_KEY_ATTR_MAX
, attr_type
) ==
2429 if (mask
&& mask_len
) {
2430 ma
= nl_attr_find__(mask
, mask_len
, nl_attr_type(a
));
2431 is_wildcard
= ma
? odp_mask_attr_is_wildcard(ma
) : true;
2434 if (verbose
|| !is_wildcard
|| is_nested_attr
) {
2435 if (is_wildcard
&& !ma
) {
2436 ma
= generate_all_wildcard_mask(ovs_flow_key_attr_lens
,
2441 ds_put_char(ds
, ',');
2443 format_odp_key_attr(a
, ma
, portno_names
, ds
, verbose
);
2444 first_field
= false;
2448 ofpbuf_uninit(&ofp
);
2453 if (left
== key_len
) {
2454 ds_put_cstr(ds
, "<empty>");
2456 ds_put_format(ds
, ",***%u leftover bytes*** (", left
);
2457 for (i
= 0; i
< left
; i
++) {
2458 ds_put_format(ds
, "%02x", ((const uint8_t *) a
)[i
]);
2460 ds_put_char(ds
, ')');
2462 if (!has_ethtype_key
) {
2463 ma
= nl_attr_find__(mask
, mask_len
, OVS_KEY_ATTR_ETHERTYPE
);
2465 ds_put_format(ds
, ",eth_type(0/0x%04"PRIx16
")",
2466 ntohs(nl_attr_get_be16(ma
)));
2470 ds_put_cstr(ds
, "<empty>");
2474 /* Appends to 'ds' a string representation of the 'key_len' bytes of
2475 * OVS_KEY_ATTR_* attributes in 'key'. */
2477 odp_flow_key_format(const struct nlattr
*key
,
2478 size_t key_len
, struct ds
*ds
)
2480 odp_flow_format(key
, key_len
, NULL
, 0, NULL
, ds
, true);
2484 ovs_frag_type_from_string(const char *s
, enum ovs_frag_type
*type
)
2486 if (!strcasecmp(s
, "no")) {
2487 *type
= OVS_FRAG_TYPE_NONE
;
2488 } else if (!strcasecmp(s
, "first")) {
2489 *type
= OVS_FRAG_TYPE_FIRST
;
2490 } else if (!strcasecmp(s
, "later")) {
2491 *type
= OVS_FRAG_TYPE_LATER
;
2501 scan_eth(const char *s
, uint8_t (*key
)[ETH_ADDR_LEN
],
2502 uint8_t (*mask
)[ETH_ADDR_LEN
])
2506 if (ovs_scan(s
, ETH_ADDR_SCAN_FMT
"%n", ETH_ADDR_SCAN_ARGS(*key
), &n
)) {
2510 if (ovs_scan(s
+ len
, "/"ETH_ADDR_SCAN_FMT
"%n",
2511 ETH_ADDR_SCAN_ARGS(*mask
), &n
)) {
2514 memset(mask
, 0xff, sizeof *mask
);
2523 scan_ipv4(const char *s
, ovs_be32
*key
, ovs_be32
*mask
)
2527 if (ovs_scan(s
, IP_SCAN_FMT
"%n", IP_SCAN_ARGS(key
), &n
)) {
2531 if (ovs_scan(s
+ len
, "/"IP_SCAN_FMT
"%n",
2532 IP_SCAN_ARGS(mask
), &n
)) {
2535 *mask
= OVS_BE32_MAX
;
2544 scan_ipv6(const char *s
, ovs_be32 (*key
)[4], ovs_be32 (*mask
)[4])
2547 char ipv6_s
[IPV6_SCAN_LEN
+ 1];
2549 if (ovs_scan(s
, IPV6_SCAN_FMT
"%n", ipv6_s
, &n
)
2550 && inet_pton(AF_INET6
, ipv6_s
, key
) == 1) {
2554 if (ovs_scan(s
+ len
, "/"IPV6_SCAN_FMT
"%n", ipv6_s
, &n
)
2555 && inet_pton(AF_INET6
, ipv6_s
, mask
) == 1) {
2558 memset(mask
, 0xff, sizeof *mask
);
2567 scan_ipv6_label(const char *s
, ovs_be32
*key
, ovs_be32
*mask
)
2572 if (ovs_scan(s
, "%i%n", &key_
, &n
)
2573 && (key_
& ~IPV6_LABEL_MASK
) == 0) {
2578 if (ovs_scan(s
+ len
, "/%i%n", &mask_
, &n
)
2579 && (mask_
& ~IPV6_LABEL_MASK
) == 0) {
2581 *mask
= htonl(mask_
);
2583 *mask
= htonl(IPV6_LABEL_MASK
);
2592 scan_u8(const char *s
, uint8_t *key
, uint8_t *mask
)
2596 if (ovs_scan(s
, "%"SCNi8
"%n", key
, &n
)) {
2600 if (ovs_scan(s
+ len
, "/%"SCNi8
"%n", mask
, &n
)) {
2612 scan_u32(const char *s
, uint32_t *key
, uint32_t *mask
)
2616 if (ovs_scan(s
, "%"SCNi32
"%n", key
, &n
)) {
2620 if (ovs_scan(s
+ len
, "/%"SCNi32
"%n", mask
, &n
)) {
2632 scan_be16(const char *s
, ovs_be16
*key
, ovs_be16
*mask
)
2634 uint16_t key_
, mask_
;
2637 if (ovs_scan(s
, "%"SCNi16
"%n", &key_
, &n
)) {
2642 if (ovs_scan(s
+ len
, "/%"SCNi16
"%n", &mask_
, &n
)) {
2644 *mask
= htons(mask_
);
2646 *mask
= OVS_BE16_MAX
;
2655 scan_be64(const char *s
, ovs_be64
*key
, ovs_be64
*mask
)
2657 uint64_t key_
, mask_
;
2660 if (ovs_scan(s
, "%"SCNi64
"%n", &key_
, &n
)) {
2663 *key
= htonll(key_
);
2665 if (ovs_scan(s
+ len
, "/%"SCNi64
"%n", &mask_
, &n
)) {
2667 *mask
= htonll(mask_
);
2669 *mask
= OVS_BE64_MAX
;
2678 scan_tun_flags(const char *s
, uint16_t *key
, uint16_t *mask
)
2680 uint32_t flags
, fmask
;
2683 n
= parse_flags(s
, flow_tun_flag_to_string
, &flags
,
2684 FLOW_TNL_F_MASK
, mask
? &fmask
: NULL
);
2685 if (n
>= 0 && s
[n
] == ')') {
2696 scan_tcp_flags(const char *s
, ovs_be16
*key
, ovs_be16
*mask
)
2698 uint32_t flags
, fmask
;
2701 n
= parse_flags(s
, packet_tcp_flag_to_string
, &flags
,
2702 TCP_FLAGS(OVS_BE16_MAX
), mask
? &fmask
: NULL
);
2704 *key
= htons(flags
);
2706 *mask
= htons(fmask
);
2714 scan_frag(const char *s
, uint8_t *key
, uint8_t *mask
)
2718 enum ovs_frag_type frag_type
;
2720 if (ovs_scan(s
, "%7[a-z]%n", frag
, &n
)
2721 && ovs_frag_type_from_string(frag
, &frag_type
)) {
2734 scan_port(const char *s
, uint32_t *key
, uint32_t *mask
,
2735 const struct simap
*port_names
)
2739 if (ovs_scan(s
, "%"SCNi32
"%n", key
, &n
)) {
2743 if (ovs_scan(s
+ len
, "/%"SCNi32
"%n", mask
, &n
)) {
2750 } else if (port_names
) {
2751 const struct simap_node
*node
;
2754 len
= strcspn(s
, ")");
2755 node
= simap_find_len(port_names
, s
, len
);
2768 /* Helper for vlan parsing. */
2769 struct ovs_key_vlan__
{
2774 set_be16_bf(ovs_be16
*bf
, uint8_t bits
, uint8_t offset
, uint16_t value
)
2776 const uint16_t mask
= ((1U << bits
) - 1) << offset
;
2778 if (value
>> bits
) {
2782 *bf
= htons((ntohs(*bf
) & ~mask
) | (value
<< offset
));
2787 scan_be16_bf(const char *s
, ovs_be16
*key
, ovs_be16
*mask
, uint8_t bits
,
2790 uint16_t key_
, mask_
;
2793 if (ovs_scan(s
, "%"SCNi16
"%n", &key_
, &n
)) {
2796 if (set_be16_bf(key
, bits
, offset
, key_
)) {
2798 if (ovs_scan(s
+ len
, "/%"SCNi16
"%n", &mask_
, &n
)) {
2801 if (!set_be16_bf(mask
, bits
, offset
, mask_
)) {
2805 *mask
|= htons(((1U << bits
) - 1) << offset
);
2815 scan_vid(const char *s
, ovs_be16
*key
, ovs_be16
*mask
)
2817 return scan_be16_bf(s
, key
, mask
, 12, VLAN_VID_SHIFT
);
2821 scan_pcp(const char *s
, ovs_be16
*key
, ovs_be16
*mask
)
2823 return scan_be16_bf(s
, key
, mask
, 3, VLAN_PCP_SHIFT
);
2827 scan_cfi(const char *s
, ovs_be16
*key
, ovs_be16
*mask
)
2829 return scan_be16_bf(s
, key
, mask
, 1, VLAN_CFI_SHIFT
);
2834 set_be32_bf(ovs_be32
*bf
, uint8_t bits
, uint8_t offset
, uint32_t value
)
2836 const uint32_t mask
= ((1U << bits
) - 1) << offset
;
2838 if (value
>> bits
) {
2842 *bf
= htonl((ntohl(*bf
) & ~mask
) | (value
<< offset
));
2847 scan_be32_bf(const char *s
, ovs_be32
*key
, ovs_be32
*mask
, uint8_t bits
,
2850 uint32_t key_
, mask_
;
2853 if (ovs_scan(s
, "%"SCNi32
"%n", &key_
, &n
)) {
2856 if (set_be32_bf(key
, bits
, offset
, key_
)) {
2858 if (ovs_scan(s
+ len
, "/%"SCNi32
"%n", &mask_
, &n
)) {
2861 if (!set_be32_bf(mask
, bits
, offset
, mask_
)) {
2865 *mask
|= htonl(((1U << bits
) - 1) << offset
);
2875 scan_mpls_label(const char *s
, ovs_be32
*key
, ovs_be32
*mask
)
2877 return scan_be32_bf(s
, key
, mask
, 20, MPLS_LABEL_SHIFT
);
2881 scan_mpls_tc(const char *s
, ovs_be32
*key
, ovs_be32
*mask
)
2883 return scan_be32_bf(s
, key
, mask
, 3, MPLS_TC_SHIFT
);
2887 scan_mpls_ttl(const char *s
, ovs_be32
*key
, ovs_be32
*mask
)
2889 return scan_be32_bf(s
, key
, mask
, 8, MPLS_TTL_SHIFT
);
2893 scan_mpls_bos(const char *s
, ovs_be32
*key
, ovs_be32
*mask
)
2895 return scan_be32_bf(s
, key
, mask
, 1, MPLS_BOS_SHIFT
);
2899 scan_vxlan_gbp(const char *s
, uint32_t *key
, uint32_t *mask
)
2901 const char *s_base
= s
;
2902 ovs_be16 id
= 0, id_mask
= 0;
2903 uint8_t flags
= 0, flags_mask
= 0;
2905 if (!strncmp(s
, "id=", 3)) {
2907 s
+= scan_be16(s
, &id
, mask
? &id_mask
: NULL
);
2913 if (!strncmp(s
, "flags=", 6)) {
2915 s
+= scan_u8(s
, &flags
, mask
? &flags_mask
: NULL
);
2918 if (!strncmp(s
, "))", 2)) {
2921 *key
= (flags
<< 16) | ntohs(id
);
2923 *mask
= (flags_mask
<< 16) | ntohs(id_mask
);
2933 scan_geneve(const char *s
, struct geneve_scan
*key
, struct geneve_scan
*mask
)
2935 const char *s_base
= s
;
2936 struct geneve_opt
*opt
= key
->d
;
2937 struct geneve_opt
*opt_mask
= mask
? mask
->d
: NULL
;
2938 int len_remain
= sizeof key
->d
;
2940 while (s
[0] == '{' && len_remain
>= sizeof *opt
) {
2944 len_remain
-= sizeof *opt
;
2946 if (!strncmp(s
, "class=", 6)) {
2948 s
+= scan_be16(s
, &opt
->opt_class
,
2949 mask
? &opt_mask
->opt_class
: NULL
);
2951 memset(&opt_mask
->opt_class
, 0, sizeof opt_mask
->opt_class
);
2957 if (!strncmp(s
, "type=", 5)) {
2959 s
+= scan_u8(s
, &opt
->type
, mask
? &opt_mask
->type
: NULL
);
2961 memset(&opt_mask
->type
, 0, sizeof opt_mask
->type
);
2967 if (!strncmp(s
, "len=", 4)) {
2968 uint8_t opt_len
, opt_len_mask
;
2970 s
+= scan_u8(s
, &opt_len
, mask
? &opt_len_mask
: NULL
);
2972 if (opt_len
> 124 || opt_len
% 4 || opt_len
> len_remain
) {
2975 opt
->length
= opt_len
/ 4;
2977 opt_mask
->length
= opt_len_mask
;
2981 memset(&opt_mask
->type
, 0, sizeof opt_mask
->type
);
2987 if (parse_int_string(s
, (uint8_t *)(opt
+ 1), data_len
, (char **)&s
)) {
2994 if (parse_int_string(s
, (uint8_t *)(opt_mask
+ 1),
2995 data_len
, (char **)&s
)) {
3006 opt
+= 1 + data_len
/ 4;
3008 opt_mask
+= 1 + data_len
/ 4;
3010 len_remain
-= data_len
;
3015 int len
= sizeof key
->d
- len_remain
;
3029 tun_flags_to_attr(struct ofpbuf
*a
, const void *data_
)
3031 const uint16_t *flags
= data_
;
3033 if (*flags
& FLOW_TNL_F_DONT_FRAGMENT
) {
3034 nl_msg_put_flag(a
, OVS_TUNNEL_KEY_ATTR_DONT_FRAGMENT
);
3036 if (*flags
& FLOW_TNL_F_CSUM
) {
3037 nl_msg_put_flag(a
, OVS_TUNNEL_KEY_ATTR_CSUM
);
3039 if (*flags
& FLOW_TNL_F_OAM
) {
3040 nl_msg_put_flag(a
, OVS_TUNNEL_KEY_ATTR_OAM
);
3045 vxlan_gbp_to_attr(struct ofpbuf
*a
, const void *data_
)
3047 const uint32_t *gbp
= data_
;
3050 size_t vxlan_opts_ofs
;
3052 vxlan_opts_ofs
= nl_msg_start_nested(a
, OVS_TUNNEL_KEY_ATTR_VXLAN_OPTS
);
3053 nl_msg_put_u32(a
, OVS_VXLAN_EXT_GBP
, *gbp
);
3054 nl_msg_end_nested(a
, vxlan_opts_ofs
);
3059 geneve_to_attr(struct ofpbuf
*a
, const void *data_
)
3061 const struct geneve_scan
*geneve
= data_
;
3063 nl_msg_put_unspec(a
, OVS_TUNNEL_KEY_ATTR_GENEVE_OPTS
, geneve
->d
,
3067 #define SCAN_PUT_ATTR(BUF, ATTR, DATA, FUNC) \
3069 unsigned long call_fn = (unsigned long)FUNC; \
3071 typedef void (*fn)(struct ofpbuf *, const void *); \
3073 func(BUF, &(DATA)); \
3075 nl_msg_put_unspec(BUF, ATTR, &(DATA), sizeof (DATA)); \
3079 #define SCAN_IF(NAME) \
3080 if (strncmp(s, NAME, strlen(NAME)) == 0) { \
3081 const char *start = s; \
3086 /* Usually no special initialization is needed. */
3087 #define SCAN_BEGIN(NAME, TYPE) \
3090 memset(&skey, 0, sizeof skey); \
3091 memset(&smask, 0, sizeof smask); \
3095 /* Init as fully-masked as mask will not be scanned. */
3096 #define SCAN_BEGIN_FULLY_MASKED(NAME, TYPE) \
3099 memset(&skey, 0, sizeof skey); \
3100 memset(&smask, 0xff, sizeof smask); \
3104 /* VLAN needs special initialization. */
3105 #define SCAN_BEGIN_INIT(NAME, TYPE, KEY_INIT, MASK_INIT) \
3107 TYPE skey = KEY_INIT; \
3108 TYPE smask = MASK_INIT; \
3112 /* Scan unnamed entry as 'TYPE' */
3113 #define SCAN_TYPE(TYPE, KEY, MASK) \
3114 len = scan_##TYPE(s, KEY, MASK); \
3120 /* Scan named ('NAME') entry 'FIELD' as 'TYPE'. */
3121 #define SCAN_FIELD(NAME, TYPE, FIELD) \
3122 if (strncmp(s, NAME, strlen(NAME)) == 0) { \
3123 s += strlen(NAME); \
3124 SCAN_TYPE(TYPE, &skey.FIELD, mask ? &smask.FIELD : NULL); \
3128 #define SCAN_FINISH() \
3129 } while (*s++ == ',' && len != 0); \
3130 if (s[-1] != ')') { \
3134 #define SCAN_FINISH_SINGLE() \
3136 if (*s++ != ')') { \
3140 /* Beginning of nested attribute. */
3141 #define SCAN_BEGIN_NESTED(NAME, ATTR) \
3143 size_t key_offset, mask_offset; \
3144 key_offset = nl_msg_start_nested(key, ATTR); \
3146 mask_offset = nl_msg_start_nested(mask, ATTR); \
3151 #define SCAN_END_NESTED() \
3153 nl_msg_end_nested(key, key_offset); \
3155 nl_msg_end_nested(mask, mask_offset); \
3160 #define SCAN_FIELD_NESTED__(NAME, TYPE, SCAN_AS, ATTR, FUNC) \
3161 if (strncmp(s, NAME, strlen(NAME)) == 0) { \
3163 memset(&skey, 0, sizeof skey); \
3164 memset(&smask, 0xff, sizeof smask); \
3165 s += strlen(NAME); \
3166 SCAN_TYPE(SCAN_AS, &skey, &smask); \
3167 SCAN_PUT(ATTR, FUNC); \
3171 #define SCAN_FIELD_NESTED(NAME, TYPE, SCAN_AS, ATTR) \
3172 SCAN_FIELD_NESTED__(NAME, TYPE, SCAN_AS, ATTR, NULL)
3174 #define SCAN_FIELD_NESTED_FUNC(NAME, TYPE, SCAN_AS, FUNC) \
3175 SCAN_FIELD_NESTED__(NAME, TYPE, SCAN_AS, 0, FUNC)
3177 #define SCAN_PUT(ATTR, FUNC) \
3178 if (!mask || !is_all_zeros(&smask, sizeof smask)) { \
3179 SCAN_PUT_ATTR(key, ATTR, skey, FUNC); \
3181 SCAN_PUT_ATTR(mask, ATTR, smask, FUNC); \
3185 #define SCAN_END(ATTR) \
3187 SCAN_PUT(ATTR, NULL); \
3191 #define SCAN_END_SINGLE(ATTR) \
3192 SCAN_FINISH_SINGLE(); \
3193 SCAN_PUT(ATTR, NULL); \
3197 #define SCAN_SINGLE(NAME, TYPE, SCAN_AS, ATTR) \
3198 SCAN_BEGIN(NAME, TYPE) { \
3199 SCAN_TYPE(SCAN_AS, &skey, &smask); \
3200 } SCAN_END_SINGLE(ATTR)
3202 #define SCAN_SINGLE_FULLY_MASKED(NAME, TYPE, SCAN_AS, ATTR) \
3203 SCAN_BEGIN_FULLY_MASKED(NAME, TYPE) { \
3204 SCAN_TYPE(SCAN_AS, &skey, NULL); \
3205 } SCAN_END_SINGLE(ATTR)
3207 /* scan_port needs one extra argument. */
3208 #define SCAN_SINGLE_PORT(NAME, TYPE, ATTR) \
3209 SCAN_BEGIN(NAME, TYPE) { \
3210 len = scan_port(s, &skey, &smask, port_names); \
3215 } SCAN_END_SINGLE(ATTR)
3218 parse_odp_key_mask_attr(const char *s
, const struct simap
*port_names
,
3219 struct ofpbuf
*key
, struct ofpbuf
*mask
)
3225 len
= odp_ufid_from_string(s
, &ufid
);
3230 SCAN_SINGLE("skb_priority(", uint32_t, u32
, OVS_KEY_ATTR_PRIORITY
);
3231 SCAN_SINGLE("skb_mark(", uint32_t, u32
, OVS_KEY_ATTR_SKB_MARK
);
3232 SCAN_SINGLE_FULLY_MASKED("recirc_id(", uint32_t, u32
,
3233 OVS_KEY_ATTR_RECIRC_ID
);
3234 SCAN_SINGLE("dp_hash(", uint32_t, u32
, OVS_KEY_ATTR_DP_HASH
);
3236 SCAN_BEGIN_NESTED("tunnel(", OVS_KEY_ATTR_TUNNEL
) {
3237 SCAN_FIELD_NESTED("tun_id=", ovs_be64
, be64
, OVS_TUNNEL_KEY_ATTR_ID
);
3238 SCAN_FIELD_NESTED("src=", ovs_be32
, ipv4
, OVS_TUNNEL_KEY_ATTR_IPV4_SRC
);
3239 SCAN_FIELD_NESTED("dst=", ovs_be32
, ipv4
, OVS_TUNNEL_KEY_ATTR_IPV4_DST
);
3240 SCAN_FIELD_NESTED("tos=", uint8_t, u8
, OVS_TUNNEL_KEY_ATTR_TOS
);
3241 SCAN_FIELD_NESTED("ttl=", uint8_t, u8
, OVS_TUNNEL_KEY_ATTR_TTL
);
3242 SCAN_FIELD_NESTED("tp_src=", ovs_be16
, be16
, OVS_TUNNEL_KEY_ATTR_TP_SRC
);
3243 SCAN_FIELD_NESTED("tp_dst=", ovs_be16
, be16
, OVS_TUNNEL_KEY_ATTR_TP_DST
);
3244 SCAN_FIELD_NESTED_FUNC("vxlan(gbp(", uint32_t, vxlan_gbp
, vxlan_gbp_to_attr
);
3245 SCAN_FIELD_NESTED_FUNC("geneve(", struct geneve_scan
, geneve
,
3247 SCAN_FIELD_NESTED_FUNC("flags(", uint16_t, tun_flags
, tun_flags_to_attr
);
3248 } SCAN_END_NESTED();
3250 SCAN_SINGLE_PORT("in_port(", uint32_t, OVS_KEY_ATTR_IN_PORT
);
3252 SCAN_BEGIN("eth(", struct ovs_key_ethernet
) {
3253 SCAN_FIELD("src=", eth
, eth_src
);
3254 SCAN_FIELD("dst=", eth
, eth_dst
);
3255 } SCAN_END(OVS_KEY_ATTR_ETHERNET
);
3257 SCAN_BEGIN_INIT("vlan(", struct ovs_key_vlan__
,
3258 { htons(VLAN_CFI
) }, { htons(VLAN_CFI
) }) {
3259 SCAN_FIELD("vid=", vid
, tci
);
3260 SCAN_FIELD("pcp=", pcp
, tci
);
3261 SCAN_FIELD("cfi=", cfi
, tci
);
3262 } SCAN_END(OVS_KEY_ATTR_VLAN
);
3264 SCAN_SINGLE("eth_type(", ovs_be16
, be16
, OVS_KEY_ATTR_ETHERTYPE
);
3266 SCAN_BEGIN("mpls(", struct ovs_key_mpls
) {
3267 SCAN_FIELD("label=", mpls_label
, mpls_lse
);
3268 SCAN_FIELD("tc=", mpls_tc
, mpls_lse
);
3269 SCAN_FIELD("ttl=", mpls_ttl
, mpls_lse
);
3270 SCAN_FIELD("bos=", mpls_bos
, mpls_lse
);
3271 } SCAN_END(OVS_KEY_ATTR_MPLS
);
3273 SCAN_BEGIN("ipv4(", struct ovs_key_ipv4
) {
3274 SCAN_FIELD("src=", ipv4
, ipv4_src
);
3275 SCAN_FIELD("dst=", ipv4
, ipv4_dst
);
3276 SCAN_FIELD("proto=", u8
, ipv4_proto
);
3277 SCAN_FIELD("tos=", u8
, ipv4_tos
);
3278 SCAN_FIELD("ttl=", u8
, ipv4_ttl
);
3279 SCAN_FIELD("frag=", frag
, ipv4_frag
);
3280 } SCAN_END(OVS_KEY_ATTR_IPV4
);
3282 SCAN_BEGIN("ipv6(", struct ovs_key_ipv6
) {
3283 SCAN_FIELD("src=", ipv6
, ipv6_src
);
3284 SCAN_FIELD("dst=", ipv6
, ipv6_dst
);
3285 SCAN_FIELD("label=", ipv6_label
, ipv6_label
);
3286 SCAN_FIELD("proto=", u8
, ipv6_proto
);
3287 SCAN_FIELD("tclass=", u8
, ipv6_tclass
);
3288 SCAN_FIELD("hlimit=", u8
, ipv6_hlimit
);
3289 SCAN_FIELD("frag=", frag
, ipv6_frag
);
3290 } SCAN_END(OVS_KEY_ATTR_IPV6
);
3292 SCAN_BEGIN("tcp(", struct ovs_key_tcp
) {
3293 SCAN_FIELD("src=", be16
, tcp_src
);
3294 SCAN_FIELD("dst=", be16
, tcp_dst
);
3295 } SCAN_END(OVS_KEY_ATTR_TCP
);
3297 SCAN_SINGLE("tcp_flags(", ovs_be16
, tcp_flags
, OVS_KEY_ATTR_TCP_FLAGS
);
3299 SCAN_BEGIN("udp(", struct ovs_key_udp
) {
3300 SCAN_FIELD("src=", be16
, udp_src
);
3301 SCAN_FIELD("dst=", be16
, udp_dst
);
3302 } SCAN_END(OVS_KEY_ATTR_UDP
);
3304 SCAN_BEGIN("sctp(", struct ovs_key_sctp
) {
3305 SCAN_FIELD("src=", be16
, sctp_src
);
3306 SCAN_FIELD("dst=", be16
, sctp_dst
);
3307 } SCAN_END(OVS_KEY_ATTR_SCTP
);
3309 SCAN_BEGIN("icmp(", struct ovs_key_icmp
) {
3310 SCAN_FIELD("type=", u8
, icmp_type
);
3311 SCAN_FIELD("code=", u8
, icmp_code
);
3312 } SCAN_END(OVS_KEY_ATTR_ICMP
);
3314 SCAN_BEGIN("icmpv6(", struct ovs_key_icmpv6
) {
3315 SCAN_FIELD("type=", u8
, icmpv6_type
);
3316 SCAN_FIELD("code=", u8
, icmpv6_code
);
3317 } SCAN_END(OVS_KEY_ATTR_ICMPV6
);
3319 SCAN_BEGIN("arp(", struct ovs_key_arp
) {
3320 SCAN_FIELD("sip=", ipv4
, arp_sip
);
3321 SCAN_FIELD("tip=", ipv4
, arp_tip
);
3322 SCAN_FIELD("op=", be16
, arp_op
);
3323 SCAN_FIELD("sha=", eth
, arp_sha
);
3324 SCAN_FIELD("tha=", eth
, arp_tha
);
3325 } SCAN_END(OVS_KEY_ATTR_ARP
);
3327 SCAN_BEGIN("nd(", struct ovs_key_nd
) {
3328 SCAN_FIELD("target=", ipv6
, nd_target
);
3329 SCAN_FIELD("sll=", eth
, nd_sll
);
3330 SCAN_FIELD("tll=", eth
, nd_tll
);
3331 } SCAN_END(OVS_KEY_ATTR_ND
);
3333 /* Encap open-coded. */
3334 if (!strncmp(s
, "encap(", 6)) {
3335 const char *start
= s
;
3336 size_t encap
, encap_mask
= 0;
3338 encap
= nl_msg_start_nested(key
, OVS_KEY_ATTR_ENCAP
);
3340 encap_mask
= nl_msg_start_nested(mask
, OVS_KEY_ATTR_ENCAP
);
3347 s
+= strspn(s
, delimiters
);
3350 } else if (*s
== ')') {
3354 retval
= parse_odp_key_mask_attr(s
, port_names
, key
, mask
);
3362 nl_msg_end_nested(key
, encap
);
3364 nl_msg_end_nested(mask
, encap_mask
);
3373 /* Parses the string representation of a datapath flow key, in the
3374 * format output by odp_flow_key_format(). Returns 0 if successful,
3375 * otherwise a positive errno value. On success, the flow key is
3376 * appended to 'key' as a series of Netlink attributes. On failure, no
3377 * data is appended to 'key'. Either way, 'key''s data might be
3380 * If 'port_names' is nonnull, it points to an simap that maps from a port name
3381 * to a port number. (Port names may be used instead of port numbers in
3384 * On success, the attributes appended to 'key' are individually syntactically
3385 * valid, but they may not be valid as a sequence. 'key' might, for example,
3386 * have duplicated keys. odp_flow_key_to_flow() will detect those errors. */
3388 odp_flow_from_string(const char *s
, const struct simap
*port_names
,
3389 struct ofpbuf
*key
, struct ofpbuf
*mask
)
3391 const size_t old_size
= key
->size
;
3395 s
+= strspn(s
, delimiters
);
3400 retval
= parse_odp_key_mask_attr(s
, port_names
, key
, mask
);
3402 key
->size
= old_size
;
3412 ovs_to_odp_frag(uint8_t nw_frag
, bool is_mask
)
3415 /* Netlink interface 'enum ovs_frag_type' is an 8-bit enumeration type,
3416 * not a set of flags or bitfields. Hence, if the struct flow nw_frag
3417 * mask, which is a set of bits, has the FLOW_NW_FRAG_ANY as zero, we
3418 * must use a zero mask for the netlink frag field, and all ones mask
3420 return (nw_frag
& FLOW_NW_FRAG_ANY
) ? UINT8_MAX
: 0;
3422 return !(nw_frag
& FLOW_NW_FRAG_ANY
) ? OVS_FRAG_TYPE_NONE
3423 : nw_frag
& FLOW_NW_FRAG_LATER
? OVS_FRAG_TYPE_LATER
3424 : OVS_FRAG_TYPE_FIRST
;
3427 static void get_ethernet_key(const struct flow
*, struct ovs_key_ethernet
*);
3428 static void put_ethernet_key(const struct ovs_key_ethernet
*, struct flow
*);
3429 static void get_ipv4_key(const struct flow
*, struct ovs_key_ipv4
*,
3431 static void put_ipv4_key(const struct ovs_key_ipv4
*, struct flow
*,
3433 static void get_ipv6_key(const struct flow
*, struct ovs_key_ipv6
*,
3435 static void put_ipv6_key(const struct ovs_key_ipv6
*, struct flow
*,
3437 static void get_arp_key(const struct flow
*, struct ovs_key_arp
*);
3438 static void put_arp_key(const struct ovs_key_arp
*, struct flow
*);
3439 static void get_nd_key(const struct flow
*, struct ovs_key_nd
*);
3440 static void put_nd_key(const struct ovs_key_nd
*, struct flow
*);
3442 /* These share the same layout. */
3444 struct ovs_key_tcp tcp
;
3445 struct ovs_key_udp udp
;
3446 struct ovs_key_sctp sctp
;
3449 static void get_tp_key(const struct flow
*, union ovs_key_tp
*);
3450 static void put_tp_key(const union ovs_key_tp
*, struct flow
*);
3453 odp_flow_key_from_flow__(const struct odp_flow_key_parms
*parms
,
3454 bool export_mask
, struct ofpbuf
*buf
)
3456 struct ovs_key_ethernet
*eth_key
;
3458 const struct flow
*flow
= parms
->flow
;
3459 const struct flow
*data
= export_mask
? parms
->mask
: parms
->flow
;
3461 nl_msg_put_u32(buf
, OVS_KEY_ATTR_PRIORITY
, data
->skb_priority
);
3463 if (flow
->tunnel
.ip_dst
|| export_mask
) {
3464 tun_key_to_attr(buf
, &data
->tunnel
, &parms
->flow
->tunnel
,
3468 nl_msg_put_u32(buf
, OVS_KEY_ATTR_SKB_MARK
, data
->pkt_mark
);
3470 if (parms
->recirc
) {
3471 nl_msg_put_u32(buf
, OVS_KEY_ATTR_RECIRC_ID
, data
->recirc_id
);
3472 nl_msg_put_u32(buf
, OVS_KEY_ATTR_DP_HASH
, data
->dp_hash
);
3475 /* Add an ingress port attribute if this is a mask or 'odp_in_port'
3476 * is not the magical value "ODPP_NONE". */
3477 if (export_mask
|| parms
->odp_in_port
!= ODPP_NONE
) {
3478 nl_msg_put_odp_port(buf
, OVS_KEY_ATTR_IN_PORT
, parms
->odp_in_port
);
3481 eth_key
= nl_msg_put_unspec_uninit(buf
, OVS_KEY_ATTR_ETHERNET
,
3483 get_ethernet_key(data
, eth_key
);
3485 if (flow
->vlan_tci
!= htons(0) || flow
->dl_type
== htons(ETH_TYPE_VLAN
)) {
3487 nl_msg_put_be16(buf
, OVS_KEY_ATTR_ETHERTYPE
, OVS_BE16_MAX
);
3489 nl_msg_put_be16(buf
, OVS_KEY_ATTR_ETHERTYPE
, htons(ETH_TYPE_VLAN
));
3491 nl_msg_put_be16(buf
, OVS_KEY_ATTR_VLAN
, data
->vlan_tci
);
3492 encap
= nl_msg_start_nested(buf
, OVS_KEY_ATTR_ENCAP
);
3493 if (flow
->vlan_tci
== htons(0)) {
3500 if (ntohs(flow
->dl_type
) < ETH_TYPE_MIN
) {
3501 /* For backwards compatibility with kernels that don't support
3502 * wildcarding, the following convention is used to encode the
3503 * OVS_KEY_ATTR_ETHERTYPE for key and mask:
3506 * -------- -------- -------
3507 * >0x5ff 0xffff Specified Ethernet II Ethertype.
3508 * >0x5ff 0 Any Ethernet II or non-Ethernet II frame.
3509 * <none> 0xffff Any non-Ethernet II frame (except valid
3510 * 802.3 SNAP packet with valid eth_type).
3513 nl_msg_put_be16(buf
, OVS_KEY_ATTR_ETHERTYPE
, OVS_BE16_MAX
);
3518 nl_msg_put_be16(buf
, OVS_KEY_ATTR_ETHERTYPE
, data
->dl_type
);
3520 if (flow
->dl_type
== htons(ETH_TYPE_IP
)) {
3521 struct ovs_key_ipv4
*ipv4_key
;
3523 ipv4_key
= nl_msg_put_unspec_uninit(buf
, OVS_KEY_ATTR_IPV4
,
3525 get_ipv4_key(data
, ipv4_key
, export_mask
);
3526 } else if (flow
->dl_type
== htons(ETH_TYPE_IPV6
)) {
3527 struct ovs_key_ipv6
*ipv6_key
;
3529 ipv6_key
= nl_msg_put_unspec_uninit(buf
, OVS_KEY_ATTR_IPV6
,
3531 get_ipv6_key(data
, ipv6_key
, export_mask
);
3532 } else if (flow
->dl_type
== htons(ETH_TYPE_ARP
) ||
3533 flow
->dl_type
== htons(ETH_TYPE_RARP
)) {
3534 struct ovs_key_arp
*arp_key
;
3536 arp_key
= nl_msg_put_unspec_uninit(buf
, OVS_KEY_ATTR_ARP
,
3538 get_arp_key(data
, arp_key
);
3539 } else if (eth_type_mpls(flow
->dl_type
)) {
3540 struct ovs_key_mpls
*mpls_key
;
3543 n
= flow_count_mpls_labels(flow
, NULL
);
3545 n
= MIN(n
, parms
->max_mpls_depth
);
3547 mpls_key
= nl_msg_put_unspec_uninit(buf
, OVS_KEY_ATTR_MPLS
,
3548 n
* sizeof *mpls_key
);
3549 for (i
= 0; i
< n
; i
++) {
3550 mpls_key
[i
].mpls_lse
= data
->mpls_lse
[i
];
3554 if (is_ip_any(flow
) && !(flow
->nw_frag
& FLOW_NW_FRAG_LATER
)) {
3555 if (flow
->nw_proto
== IPPROTO_TCP
) {
3556 union ovs_key_tp
*tcp_key
;
3558 tcp_key
= nl_msg_put_unspec_uninit(buf
, OVS_KEY_ATTR_TCP
,
3560 get_tp_key(data
, tcp_key
);
3561 if (data
->tcp_flags
) {
3562 nl_msg_put_be16(buf
, OVS_KEY_ATTR_TCP_FLAGS
, data
->tcp_flags
);
3564 } else if (flow
->nw_proto
== IPPROTO_UDP
) {
3565 union ovs_key_tp
*udp_key
;
3567 udp_key
= nl_msg_put_unspec_uninit(buf
, OVS_KEY_ATTR_UDP
,
3569 get_tp_key(data
, udp_key
);
3570 } else if (flow
->nw_proto
== IPPROTO_SCTP
) {
3571 union ovs_key_tp
*sctp_key
;
3573 sctp_key
= nl_msg_put_unspec_uninit(buf
, OVS_KEY_ATTR_SCTP
,
3575 get_tp_key(data
, sctp_key
);
3576 } else if (flow
->dl_type
== htons(ETH_TYPE_IP
)
3577 && flow
->nw_proto
== IPPROTO_ICMP
) {
3578 struct ovs_key_icmp
*icmp_key
;
3580 icmp_key
= nl_msg_put_unspec_uninit(buf
, OVS_KEY_ATTR_ICMP
,
3582 icmp_key
->icmp_type
= ntohs(data
->tp_src
);
3583 icmp_key
->icmp_code
= ntohs(data
->tp_dst
);
3584 } else if (flow
->dl_type
== htons(ETH_TYPE_IPV6
)
3585 && flow
->nw_proto
== IPPROTO_ICMPV6
) {
3586 struct ovs_key_icmpv6
*icmpv6_key
;
3588 icmpv6_key
= nl_msg_put_unspec_uninit(buf
, OVS_KEY_ATTR_ICMPV6
,
3589 sizeof *icmpv6_key
);
3590 icmpv6_key
->icmpv6_type
= ntohs(data
->tp_src
);
3591 icmpv6_key
->icmpv6_code
= ntohs(data
->tp_dst
);
3593 if (flow
->tp_dst
== htons(0)
3594 && (flow
->tp_src
== htons(ND_NEIGHBOR_SOLICIT
)
3595 || flow
->tp_src
== htons(ND_NEIGHBOR_ADVERT
))
3596 && (!export_mask
|| (data
->tp_src
== htons(0xffff)
3597 && data
->tp_dst
== htons(0xffff)))) {
3599 struct ovs_key_nd
*nd_key
;
3601 nd_key
= nl_msg_put_unspec_uninit(buf
, OVS_KEY_ATTR_ND
,
3603 memcpy(nd_key
->nd_target
, &data
->nd_target
,
3604 sizeof nd_key
->nd_target
);
3605 memcpy(nd_key
->nd_sll
, data
->arp_sha
, ETH_ADDR_LEN
);
3606 memcpy(nd_key
->nd_tll
, data
->arp_tha
, ETH_ADDR_LEN
);
3613 nl_msg_end_nested(buf
, encap
);
3617 /* Appends a representation of 'flow' as OVS_KEY_ATTR_* attributes to 'buf'.
3619 * 'buf' must have at least ODPUTIL_FLOW_KEY_BYTES bytes of space, or be
3620 * capable of being expanded to allow for that much space. */
3622 odp_flow_key_from_flow(const struct odp_flow_key_parms
*parms
,
3625 odp_flow_key_from_flow__(parms
, false, buf
);
3628 /* Appends a representation of 'mask' as OVS_KEY_ATTR_* attributes to
3631 * 'buf' must have at least ODPUTIL_FLOW_KEY_BYTES bytes of space, or be
3632 * capable of being expanded to allow for that much space. */
3634 odp_flow_key_from_mask(const struct odp_flow_key_parms
*parms
,
3637 odp_flow_key_from_flow__(parms
, true, buf
);
3640 /* Generate ODP flow key from the given packet metadata */
3642 odp_key_from_pkt_metadata(struct ofpbuf
*buf
, const struct pkt_metadata
*md
)
3644 nl_msg_put_u32(buf
, OVS_KEY_ATTR_PRIORITY
, md
->skb_priority
);
3646 if (md
->tunnel
.ip_dst
) {
3647 tun_key_to_attr(buf
, &md
->tunnel
, &md
->tunnel
, NULL
);
3650 nl_msg_put_u32(buf
, OVS_KEY_ATTR_SKB_MARK
, md
->pkt_mark
);
3652 /* Add an ingress port attribute if 'odp_in_port' is not the magical
3653 * value "ODPP_NONE". */
3654 if (md
->in_port
.odp_port
!= ODPP_NONE
) {
3655 nl_msg_put_odp_port(buf
, OVS_KEY_ATTR_IN_PORT
, md
->in_port
.odp_port
);
3659 /* Generate packet metadata from the given ODP flow key. */
3661 odp_key_to_pkt_metadata(const struct nlattr
*key
, size_t key_len
,
3662 struct pkt_metadata
*md
)
3664 const struct nlattr
*nla
;
3666 uint32_t wanted_attrs
= 1u << OVS_KEY_ATTR_PRIORITY
|
3667 1u << OVS_KEY_ATTR_SKB_MARK
| 1u << OVS_KEY_ATTR_TUNNEL
|
3668 1u << OVS_KEY_ATTR_IN_PORT
;
3670 pkt_metadata_init(md
, ODPP_NONE
);
3672 NL_ATTR_FOR_EACH (nla
, left
, key
, key_len
) {
3673 uint16_t type
= nl_attr_type(nla
);
3674 size_t len
= nl_attr_get_size(nla
);
3675 int expected_len
= odp_key_attr_len(ovs_flow_key_attr_lens
,
3676 OVS_KEY_ATTR_MAX
, type
);
3678 if (len
!= expected_len
&& expected_len
>= 0) {
3683 case OVS_KEY_ATTR_RECIRC_ID
:
3684 md
->recirc_id
= nl_attr_get_u32(nla
);
3685 wanted_attrs
&= ~(1u << OVS_KEY_ATTR_RECIRC_ID
);
3687 case OVS_KEY_ATTR_DP_HASH
:
3688 md
->dp_hash
= nl_attr_get_u32(nla
);
3689 wanted_attrs
&= ~(1u << OVS_KEY_ATTR_DP_HASH
);
3691 case OVS_KEY_ATTR_PRIORITY
:
3692 md
->skb_priority
= nl_attr_get_u32(nla
);
3693 wanted_attrs
&= ~(1u << OVS_KEY_ATTR_PRIORITY
);
3695 case OVS_KEY_ATTR_SKB_MARK
:
3696 md
->pkt_mark
= nl_attr_get_u32(nla
);
3697 wanted_attrs
&= ~(1u << OVS_KEY_ATTR_SKB_MARK
);
3699 case OVS_KEY_ATTR_TUNNEL
: {
3700 enum odp_key_fitness res
;
3702 res
= odp_tun_key_from_attr(nla
, &md
->tunnel
);
3703 if (res
== ODP_FIT_ERROR
) {
3704 memset(&md
->tunnel
, 0, sizeof md
->tunnel
);
3705 } else if (res
== ODP_FIT_PERFECT
) {
3706 wanted_attrs
&= ~(1u << OVS_KEY_ATTR_TUNNEL
);
3710 case OVS_KEY_ATTR_IN_PORT
:
3711 md
->in_port
.odp_port
= nl_attr_get_odp_port(nla
);
3712 wanted_attrs
&= ~(1u << OVS_KEY_ATTR_IN_PORT
);
3718 if (!wanted_attrs
) {
3719 return; /* Have everything. */
3725 odp_flow_key_hash(const struct nlattr
*key
, size_t key_len
)
3727 BUILD_ASSERT_DECL(!(NLA_ALIGNTO
% sizeof(uint32_t)));
3728 return hash_words(ALIGNED_CAST(const uint32_t *, key
),
3729 key_len
/ sizeof(uint32_t), 0);
3733 log_odp_key_attributes(struct vlog_rate_limit
*rl
, const char *title
,
3734 uint64_t attrs
, int out_of_range_attr
,
3735 const struct nlattr
*key
, size_t key_len
)
3740 if (VLOG_DROP_DBG(rl
)) {
3745 for (i
= 0; i
< 64; i
++) {
3746 if (attrs
& (UINT64_C(1) << i
)) {
3747 char namebuf
[OVS_KEY_ATTR_BUFSIZE
];
3749 ds_put_format(&s
, " %s",
3750 ovs_key_attr_to_string(i
, namebuf
, sizeof namebuf
));
3753 if (out_of_range_attr
) {
3754 ds_put_format(&s
, " %d (and possibly others)", out_of_range_attr
);
3757 ds_put_cstr(&s
, ": ");
3758 odp_flow_key_format(key
, key_len
, &s
);
3760 VLOG_DBG("%s:%s", title
, ds_cstr(&s
));
3765 odp_to_ovs_frag(uint8_t odp_frag
, bool is_mask
)
3767 static struct vlog_rate_limit rl
= VLOG_RATE_LIMIT_INIT(1, 5);
3770 return odp_frag
? FLOW_NW_FRAG_MASK
: 0;
3773 if (odp_frag
> OVS_FRAG_TYPE_LATER
) {
3774 VLOG_ERR_RL(&rl
, "invalid frag %"PRIu8
" in flow key", odp_frag
);
3775 return 0xff; /* Error. */
3778 return (odp_frag
== OVS_FRAG_TYPE_NONE
) ? 0
3779 : (odp_frag
== OVS_FRAG_TYPE_FIRST
) ? FLOW_NW_FRAG_ANY
3780 : FLOW_NW_FRAG_ANY
| FLOW_NW_FRAG_LATER
;
3784 parse_flow_nlattrs(const struct nlattr
*key
, size_t key_len
,
3785 const struct nlattr
*attrs
[], uint64_t *present_attrsp
,
3786 int *out_of_range_attrp
)
3788 static struct vlog_rate_limit rl
= VLOG_RATE_LIMIT_INIT(10, 10);
3789 const struct nlattr
*nla
;
3790 uint64_t present_attrs
;
3793 BUILD_ASSERT(OVS_KEY_ATTR_MAX
< CHAR_BIT
* sizeof present_attrs
);
3795 *out_of_range_attrp
= 0;
3796 NL_ATTR_FOR_EACH (nla
, left
, key
, key_len
) {
3797 uint16_t type
= nl_attr_type(nla
);
3798 size_t len
= nl_attr_get_size(nla
);
3799 int expected_len
= odp_key_attr_len(ovs_flow_key_attr_lens
,
3800 OVS_KEY_ATTR_MAX
, type
);
3802 if (len
!= expected_len
&& expected_len
>= 0) {
3803 char namebuf
[OVS_KEY_ATTR_BUFSIZE
];
3805 VLOG_ERR_RL(&rl
, "attribute %s has length %"PRIuSIZE
" but should have "
3806 "length %d", ovs_key_attr_to_string(type
, namebuf
,
3812 if (type
> OVS_KEY_ATTR_MAX
) {
3813 *out_of_range_attrp
= type
;
3815 if (present_attrs
& (UINT64_C(1) << type
)) {
3816 char namebuf
[OVS_KEY_ATTR_BUFSIZE
];
3818 VLOG_ERR_RL(&rl
, "duplicate %s attribute in flow key",
3819 ovs_key_attr_to_string(type
,
3820 namebuf
, sizeof namebuf
));
3824 present_attrs
|= UINT64_C(1) << type
;
3829 VLOG_ERR_RL(&rl
, "trailing garbage in flow key");
3833 *present_attrsp
= present_attrs
;
3837 static enum odp_key_fitness
3838 check_expectations(uint64_t present_attrs
, int out_of_range_attr
,
3839 uint64_t expected_attrs
,
3840 const struct nlattr
*key
, size_t key_len
)
3842 uint64_t missing_attrs
;
3843 uint64_t extra_attrs
;
3845 missing_attrs
= expected_attrs
& ~present_attrs
;
3846 if (missing_attrs
) {
3847 static struct vlog_rate_limit rl
= VLOG_RATE_LIMIT_INIT(10, 10);
3848 log_odp_key_attributes(&rl
, "expected but not present",
3849 missing_attrs
, 0, key
, key_len
);
3850 return ODP_FIT_TOO_LITTLE
;
3853 extra_attrs
= present_attrs
& ~expected_attrs
;
3854 if (extra_attrs
|| out_of_range_attr
) {
3855 static struct vlog_rate_limit rl
= VLOG_RATE_LIMIT_INIT(10, 10);
3856 log_odp_key_attributes(&rl
, "present but not expected",
3857 extra_attrs
, out_of_range_attr
, key
, key_len
);
3858 return ODP_FIT_TOO_MUCH
;
3861 return ODP_FIT_PERFECT
;
3865 parse_ethertype(const struct nlattr
*attrs
[OVS_KEY_ATTR_MAX
+ 1],
3866 uint64_t present_attrs
, uint64_t *expected_attrs
,
3867 struct flow
*flow
, const struct flow
*src_flow
)
3869 static struct vlog_rate_limit rl
= VLOG_RATE_LIMIT_INIT(1, 5);
3870 bool is_mask
= flow
!= src_flow
;
3872 if (present_attrs
& (UINT64_C(1) << OVS_KEY_ATTR_ETHERTYPE
)) {
3873 flow
->dl_type
= nl_attr_get_be16(attrs
[OVS_KEY_ATTR_ETHERTYPE
]);
3874 if (!is_mask
&& ntohs(flow
->dl_type
) < ETH_TYPE_MIN
) {
3875 VLOG_ERR_RL(&rl
, "invalid Ethertype %"PRIu16
" in flow key",
3876 ntohs(flow
->dl_type
));
3879 if (is_mask
&& ntohs(src_flow
->dl_type
) < ETH_TYPE_MIN
&&
3880 flow
->dl_type
!= htons(0xffff)) {
3883 *expected_attrs
|= UINT64_C(1) << OVS_KEY_ATTR_ETHERTYPE
;
3886 flow
->dl_type
= htons(FLOW_DL_TYPE_NONE
);
3887 } else if (ntohs(src_flow
->dl_type
) < ETH_TYPE_MIN
) {
3888 /* See comments in odp_flow_key_from_flow__(). */
3889 VLOG_ERR_RL(&rl
, "mask expected for non-Ethernet II frame");
3896 static enum odp_key_fitness
3897 parse_l2_5_onward(const struct nlattr
*attrs
[OVS_KEY_ATTR_MAX
+ 1],
3898 uint64_t present_attrs
, int out_of_range_attr
,
3899 uint64_t expected_attrs
, struct flow
*flow
,
3900 const struct nlattr
*key
, size_t key_len
,
3901 const struct flow
*src_flow
)
3903 static struct vlog_rate_limit rl
= VLOG_RATE_LIMIT_INIT(1, 5);
3904 bool is_mask
= src_flow
!= flow
;
3905 const void *check_start
= NULL
;
3906 size_t check_len
= 0;
3907 enum ovs_key_attr expected_bit
= 0xff;
3909 if (eth_type_mpls(src_flow
->dl_type
)) {
3910 if (!is_mask
|| present_attrs
& (UINT64_C(1) << OVS_KEY_ATTR_MPLS
)) {
3911 expected_attrs
|= (UINT64_C(1) << OVS_KEY_ATTR_MPLS
);
3913 if (present_attrs
& (UINT64_C(1) << OVS_KEY_ATTR_MPLS
)) {
3914 size_t size
= nl_attr_get_size(attrs
[OVS_KEY_ATTR_MPLS
]);
3915 const ovs_be32
*mpls_lse
= nl_attr_get(attrs
[OVS_KEY_ATTR_MPLS
]);
3916 int n
= size
/ sizeof(ovs_be32
);
3919 if (!size
|| size
% sizeof(ovs_be32
)) {
3920 return ODP_FIT_ERROR
;
3922 if (flow
->mpls_lse
[0] && flow
->dl_type
!= htons(0xffff)) {
3923 return ODP_FIT_ERROR
;
3926 for (i
= 0; i
< n
&& i
< FLOW_MAX_MPLS_LABELS
; i
++) {
3927 flow
->mpls_lse
[i
] = mpls_lse
[i
];
3929 if (n
> FLOW_MAX_MPLS_LABELS
) {
3930 return ODP_FIT_TOO_MUCH
;
3934 /* BOS may be set only in the innermost label. */
3935 for (i
= 0; i
< n
- 1; i
++) {
3936 if (flow
->mpls_lse
[i
] & htonl(MPLS_BOS_MASK
)) {
3937 return ODP_FIT_ERROR
;
3941 /* BOS must be set in the innermost label. */
3942 if (n
< FLOW_MAX_MPLS_LABELS
3943 && !(flow
->mpls_lse
[n
- 1] & htonl(MPLS_BOS_MASK
))) {
3944 return ODP_FIT_TOO_LITTLE
;
3950 } else if (src_flow
->dl_type
== htons(ETH_TYPE_IP
)) {
3952 expected_attrs
|= UINT64_C(1) << OVS_KEY_ATTR_IPV4
;
3954 if (present_attrs
& (UINT64_C(1) << OVS_KEY_ATTR_IPV4
)) {
3955 const struct ovs_key_ipv4
*ipv4_key
;
3957 ipv4_key
= nl_attr_get(attrs
[OVS_KEY_ATTR_IPV4
]);
3958 put_ipv4_key(ipv4_key
, flow
, is_mask
);
3959 if (flow
->nw_frag
> FLOW_NW_FRAG_MASK
) {
3960 return ODP_FIT_ERROR
;
3963 check_start
= ipv4_key
;
3964 check_len
= sizeof *ipv4_key
;
3965 expected_bit
= OVS_KEY_ATTR_IPV4
;
3968 } else if (src_flow
->dl_type
== htons(ETH_TYPE_IPV6
)) {
3970 expected_attrs
|= UINT64_C(1) << OVS_KEY_ATTR_IPV6
;
3972 if (present_attrs
& (UINT64_C(1) << OVS_KEY_ATTR_IPV6
)) {
3973 const struct ovs_key_ipv6
*ipv6_key
;
3975 ipv6_key
= nl_attr_get(attrs
[OVS_KEY_ATTR_IPV6
]);
3976 put_ipv6_key(ipv6_key
, flow
, is_mask
);
3977 if (flow
->nw_frag
> FLOW_NW_FRAG_MASK
) {
3978 return ODP_FIT_ERROR
;
3981 check_start
= ipv6_key
;
3982 check_len
= sizeof *ipv6_key
;
3983 expected_bit
= OVS_KEY_ATTR_IPV6
;
3986 } else if (src_flow
->dl_type
== htons(ETH_TYPE_ARP
) ||
3987 src_flow
->dl_type
== htons(ETH_TYPE_RARP
)) {
3989 expected_attrs
|= UINT64_C(1) << OVS_KEY_ATTR_ARP
;
3991 if (present_attrs
& (UINT64_C(1) << OVS_KEY_ATTR_ARP
)) {
3992 const struct ovs_key_arp
*arp_key
;
3994 arp_key
= nl_attr_get(attrs
[OVS_KEY_ATTR_ARP
]);
3995 if (!is_mask
&& (arp_key
->arp_op
& htons(0xff00))) {
3996 VLOG_ERR_RL(&rl
, "unsupported ARP opcode %"PRIu16
" in flow "
3997 "key", ntohs(arp_key
->arp_op
));
3998 return ODP_FIT_ERROR
;
4000 put_arp_key(arp_key
, flow
);
4002 check_start
= arp_key
;
4003 check_len
= sizeof *arp_key
;
4004 expected_bit
= OVS_KEY_ATTR_ARP
;
4010 if (check_len
> 0) { /* Happens only when 'is_mask'. */
4011 if (!is_all_zeros(check_start
, check_len
) &&
4012 flow
->dl_type
!= htons(0xffff)) {
4013 return ODP_FIT_ERROR
;
4015 expected_attrs
|= UINT64_C(1) << expected_bit
;
4019 expected_bit
= OVS_KEY_ATTR_UNSPEC
;
4020 if (src_flow
->nw_proto
== IPPROTO_TCP
4021 && (src_flow
->dl_type
== htons(ETH_TYPE_IP
) ||
4022 src_flow
->dl_type
== htons(ETH_TYPE_IPV6
))
4023 && !(src_flow
->nw_frag
& FLOW_NW_FRAG_LATER
)) {
4025 expected_attrs
|= UINT64_C(1) << OVS_KEY_ATTR_TCP
;
4027 if (present_attrs
& (UINT64_C(1) << OVS_KEY_ATTR_TCP
)) {
4028 const union ovs_key_tp
*tcp_key
;
4030 tcp_key
= nl_attr_get(attrs
[OVS_KEY_ATTR_TCP
]);
4031 put_tp_key(tcp_key
, flow
);
4032 expected_bit
= OVS_KEY_ATTR_TCP
;
4034 if (present_attrs
& (UINT64_C(1) << OVS_KEY_ATTR_TCP_FLAGS
)) {
4035 expected_attrs
|= UINT64_C(1) << OVS_KEY_ATTR_TCP_FLAGS
;
4036 flow
->tcp_flags
= nl_attr_get_be16(attrs
[OVS_KEY_ATTR_TCP_FLAGS
]);
4038 } else if (src_flow
->nw_proto
== IPPROTO_UDP
4039 && (src_flow
->dl_type
== htons(ETH_TYPE_IP
) ||
4040 src_flow
->dl_type
== htons(ETH_TYPE_IPV6
))
4041 && !(src_flow
->nw_frag
& FLOW_NW_FRAG_LATER
)) {
4043 expected_attrs
|= UINT64_C(1) << OVS_KEY_ATTR_UDP
;
4045 if (present_attrs
& (UINT64_C(1) << OVS_KEY_ATTR_UDP
)) {
4046 const union ovs_key_tp
*udp_key
;
4048 udp_key
= nl_attr_get(attrs
[OVS_KEY_ATTR_UDP
]);
4049 put_tp_key(udp_key
, flow
);
4050 expected_bit
= OVS_KEY_ATTR_UDP
;
4052 } else if (src_flow
->nw_proto
== IPPROTO_SCTP
4053 && (src_flow
->dl_type
== htons(ETH_TYPE_IP
) ||
4054 src_flow
->dl_type
== htons(ETH_TYPE_IPV6
))
4055 && !(src_flow
->nw_frag
& FLOW_NW_FRAG_LATER
)) {
4057 expected_attrs
|= UINT64_C(1) << OVS_KEY_ATTR_SCTP
;
4059 if (present_attrs
& (UINT64_C(1) << OVS_KEY_ATTR_SCTP
)) {
4060 const union ovs_key_tp
*sctp_key
;
4062 sctp_key
= nl_attr_get(attrs
[OVS_KEY_ATTR_SCTP
]);
4063 put_tp_key(sctp_key
, flow
);
4064 expected_bit
= OVS_KEY_ATTR_SCTP
;
4066 } else if (src_flow
->nw_proto
== IPPROTO_ICMP
4067 && src_flow
->dl_type
== htons(ETH_TYPE_IP
)
4068 && !(src_flow
->nw_frag
& FLOW_NW_FRAG_LATER
)) {
4070 expected_attrs
|= UINT64_C(1) << OVS_KEY_ATTR_ICMP
;
4072 if (present_attrs
& (UINT64_C(1) << OVS_KEY_ATTR_ICMP
)) {
4073 const struct ovs_key_icmp
*icmp_key
;
4075 icmp_key
= nl_attr_get(attrs
[OVS_KEY_ATTR_ICMP
]);
4076 flow
->tp_src
= htons(icmp_key
->icmp_type
);
4077 flow
->tp_dst
= htons(icmp_key
->icmp_code
);
4078 expected_bit
= OVS_KEY_ATTR_ICMP
;
4080 } else if (src_flow
->nw_proto
== IPPROTO_ICMPV6
4081 && src_flow
->dl_type
== htons(ETH_TYPE_IPV6
)
4082 && !(src_flow
->nw_frag
& FLOW_NW_FRAG_LATER
)) {
4084 expected_attrs
|= UINT64_C(1) << OVS_KEY_ATTR_ICMPV6
;
4086 if (present_attrs
& (UINT64_C(1) << OVS_KEY_ATTR_ICMPV6
)) {
4087 const struct ovs_key_icmpv6
*icmpv6_key
;
4089 icmpv6_key
= nl_attr_get(attrs
[OVS_KEY_ATTR_ICMPV6
]);
4090 flow
->tp_src
= htons(icmpv6_key
->icmpv6_type
);
4091 flow
->tp_dst
= htons(icmpv6_key
->icmpv6_code
);
4092 expected_bit
= OVS_KEY_ATTR_ICMPV6
;
4093 if (src_flow
->tp_dst
== htons(0) &&
4094 (src_flow
->tp_src
== htons(ND_NEIGHBOR_SOLICIT
) ||
4095 src_flow
->tp_src
== htons(ND_NEIGHBOR_ADVERT
))) {
4097 expected_attrs
|= UINT64_C(1) << OVS_KEY_ATTR_ND
;
4099 if (present_attrs
& (UINT64_C(1) << OVS_KEY_ATTR_ND
)) {
4100 const struct ovs_key_nd
*nd_key
;
4102 nd_key
= nl_attr_get(attrs
[OVS_KEY_ATTR_ND
]);
4103 memcpy(&flow
->nd_target
, nd_key
->nd_target
,
4104 sizeof flow
->nd_target
);
4105 memcpy(flow
->arp_sha
, nd_key
->nd_sll
, ETH_ADDR_LEN
);
4106 memcpy(flow
->arp_tha
, nd_key
->nd_tll
, ETH_ADDR_LEN
);
4108 if (!is_all_zeros(nd_key
, sizeof *nd_key
) &&
4109 (flow
->tp_src
!= htons(0xffff) ||
4110 flow
->tp_dst
!= htons(0xffff))) {
4111 return ODP_FIT_ERROR
;
4113 expected_attrs
|= UINT64_C(1) << OVS_KEY_ATTR_ND
;
4120 if (is_mask
&& expected_bit
!= OVS_KEY_ATTR_UNSPEC
) {
4121 if ((flow
->tp_src
|| flow
->tp_dst
) && flow
->nw_proto
!= 0xff) {
4122 return ODP_FIT_ERROR
;
4124 expected_attrs
|= UINT64_C(1) << expected_bit
;
4129 return check_expectations(present_attrs
, out_of_range_attr
, expected_attrs
,
4133 /* Parse 802.1Q header then encapsulated L3 attributes. */
4134 static enum odp_key_fitness
4135 parse_8021q_onward(const struct nlattr
*attrs
[OVS_KEY_ATTR_MAX
+ 1],
4136 uint64_t present_attrs
, int out_of_range_attr
,
4137 uint64_t expected_attrs
, struct flow
*flow
,
4138 const struct nlattr
*key
, size_t key_len
,
4139 const struct flow
*src_flow
)
4141 static struct vlog_rate_limit rl
= VLOG_RATE_LIMIT_INIT(1, 5);
4142 bool is_mask
= src_flow
!= flow
;
4144 const struct nlattr
*encap
4145 = (present_attrs
& (UINT64_C(1) << OVS_KEY_ATTR_ENCAP
)
4146 ? attrs
[OVS_KEY_ATTR_ENCAP
] : NULL
);
4147 enum odp_key_fitness encap_fitness
;
4148 enum odp_key_fitness fitness
;
4150 /* Calculate fitness of outer attributes. */
4152 expected_attrs
|= ((UINT64_C(1) << OVS_KEY_ATTR_VLAN
) |
4153 (UINT64_C(1) << OVS_KEY_ATTR_ENCAP
));
4155 if (present_attrs
& (UINT64_C(1) << OVS_KEY_ATTR_VLAN
)) {
4156 expected_attrs
|= (UINT64_C(1) << OVS_KEY_ATTR_VLAN
);
4158 if (present_attrs
& (UINT64_C(1) << OVS_KEY_ATTR_ENCAP
)) {
4159 expected_attrs
|= (UINT64_C(1) << OVS_KEY_ATTR_ENCAP
);
4162 fitness
= check_expectations(present_attrs
, out_of_range_attr
,
4163 expected_attrs
, key
, key_len
);
4166 * Remove the TPID from dl_type since it's not the real Ethertype. */
4167 flow
->dl_type
= htons(0);
4168 flow
->vlan_tci
= (present_attrs
& (UINT64_C(1) << OVS_KEY_ATTR_VLAN
)
4169 ? nl_attr_get_be16(attrs
[OVS_KEY_ATTR_VLAN
])
4172 if (!(present_attrs
& (UINT64_C(1) << OVS_KEY_ATTR_VLAN
))) {
4173 return ODP_FIT_TOO_LITTLE
;
4174 } else if (flow
->vlan_tci
== htons(0)) {
4175 /* Corner case for a truncated 802.1Q header. */
4176 if (fitness
== ODP_FIT_PERFECT
&& nl_attr_get_size(encap
)) {
4177 return ODP_FIT_TOO_MUCH
;
4180 } else if (!(flow
->vlan_tci
& htons(VLAN_CFI
))) {
4181 VLOG_ERR_RL(&rl
, "OVS_KEY_ATTR_VLAN 0x%04"PRIx16
" is nonzero "
4182 "but CFI bit is not set", ntohs(flow
->vlan_tci
));
4183 return ODP_FIT_ERROR
;
4186 if (!(present_attrs
& (UINT64_C(1) << OVS_KEY_ATTR_ENCAP
))) {
4191 /* Now parse the encapsulated attributes. */
4192 if (!parse_flow_nlattrs(nl_attr_get(encap
), nl_attr_get_size(encap
),
4193 attrs
, &present_attrs
, &out_of_range_attr
)) {
4194 return ODP_FIT_ERROR
;
4198 if (!parse_ethertype(attrs
, present_attrs
, &expected_attrs
, flow
, src_flow
)) {
4199 return ODP_FIT_ERROR
;
4201 encap_fitness
= parse_l2_5_onward(attrs
, present_attrs
, out_of_range_attr
,
4202 expected_attrs
, flow
, key
, key_len
,
4205 /* The overall fitness is the worse of the outer and inner attributes. */
4206 return MAX(fitness
, encap_fitness
);
4209 static enum odp_key_fitness
4210 odp_flow_key_to_flow__(const struct nlattr
*key
, size_t key_len
,
4211 const struct nlattr
*src_key
, size_t src_key_len
,
4212 struct flow
*flow
, const struct flow
*src_flow
)
4214 const struct nlattr
*attrs
[OVS_KEY_ATTR_MAX
+ 1];
4215 uint64_t expected_attrs
;
4216 uint64_t present_attrs
;
4217 int out_of_range_attr
;
4218 bool is_mask
= src_flow
!= flow
;
4220 memset(flow
, 0, sizeof *flow
);
4222 /* Parse attributes. */
4223 if (!parse_flow_nlattrs(key
, key_len
, attrs
, &present_attrs
,
4224 &out_of_range_attr
)) {
4225 return ODP_FIT_ERROR
;
4230 if (present_attrs
& (UINT64_C(1) << OVS_KEY_ATTR_RECIRC_ID
)) {
4231 flow
->recirc_id
= nl_attr_get_u32(attrs
[OVS_KEY_ATTR_RECIRC_ID
]);
4232 expected_attrs
|= UINT64_C(1) << OVS_KEY_ATTR_RECIRC_ID
;
4233 } else if (is_mask
) {
4234 /* Always exact match recirc_id if it is not specified. */
4235 flow
->recirc_id
= UINT32_MAX
;
4238 if (present_attrs
& (UINT64_C(1) << OVS_KEY_ATTR_DP_HASH
)) {
4239 flow
->dp_hash
= nl_attr_get_u32(attrs
[OVS_KEY_ATTR_DP_HASH
]);
4240 expected_attrs
|= UINT64_C(1) << OVS_KEY_ATTR_DP_HASH
;
4242 if (present_attrs
& (UINT64_C(1) << OVS_KEY_ATTR_PRIORITY
)) {
4243 flow
->skb_priority
= nl_attr_get_u32(attrs
[OVS_KEY_ATTR_PRIORITY
]);
4244 expected_attrs
|= UINT64_C(1) << OVS_KEY_ATTR_PRIORITY
;
4247 if (present_attrs
& (UINT64_C(1) << OVS_KEY_ATTR_SKB_MARK
)) {
4248 flow
->pkt_mark
= nl_attr_get_u32(attrs
[OVS_KEY_ATTR_SKB_MARK
]);
4249 expected_attrs
|= UINT64_C(1) << OVS_KEY_ATTR_SKB_MARK
;
4252 if (present_attrs
& (UINT64_C(1) << OVS_KEY_ATTR_TUNNEL
)) {
4253 enum odp_key_fitness res
;
4255 res
= odp_tun_key_from_attr__(attrs
[OVS_KEY_ATTR_TUNNEL
], src_key
,
4256 src_key_len
, &src_flow
->tunnel
,
4258 if (res
== ODP_FIT_ERROR
) {
4259 return ODP_FIT_ERROR
;
4260 } else if (res
== ODP_FIT_PERFECT
) {
4261 expected_attrs
|= UINT64_C(1) << OVS_KEY_ATTR_TUNNEL
;
4265 if (present_attrs
& (UINT64_C(1) << OVS_KEY_ATTR_IN_PORT
)) {
4266 flow
->in_port
.odp_port
4267 = nl_attr_get_odp_port(attrs
[OVS_KEY_ATTR_IN_PORT
]);
4268 expected_attrs
|= UINT64_C(1) << OVS_KEY_ATTR_IN_PORT
;
4269 } else if (!is_mask
) {
4270 flow
->in_port
.odp_port
= ODPP_NONE
;
4273 /* Ethernet header. */
4274 if (present_attrs
& (UINT64_C(1) << OVS_KEY_ATTR_ETHERNET
)) {
4275 const struct ovs_key_ethernet
*eth_key
;
4277 eth_key
= nl_attr_get(attrs
[OVS_KEY_ATTR_ETHERNET
]);
4278 put_ethernet_key(eth_key
, flow
);
4280 expected_attrs
|= UINT64_C(1) << OVS_KEY_ATTR_ETHERNET
;
4284 expected_attrs
|= UINT64_C(1) << OVS_KEY_ATTR_ETHERNET
;
4287 /* Get Ethertype or 802.1Q TPID or FLOW_DL_TYPE_NONE. */
4288 if (!parse_ethertype(attrs
, present_attrs
, &expected_attrs
, flow
,
4290 return ODP_FIT_ERROR
;
4294 ? (src_flow
->vlan_tci
& htons(VLAN_CFI
)) != 0
4295 : src_flow
->dl_type
== htons(ETH_TYPE_VLAN
)) {
4296 return parse_8021q_onward(attrs
, present_attrs
, out_of_range_attr
,
4297 expected_attrs
, flow
, key
, key_len
, src_flow
);
4300 flow
->vlan_tci
= htons(0xffff);
4301 if (present_attrs
& (UINT64_C(1) << OVS_KEY_ATTR_VLAN
)) {
4302 flow
->vlan_tci
= nl_attr_get_be16(attrs
[OVS_KEY_ATTR_VLAN
]);
4303 expected_attrs
|= (UINT64_C(1) << OVS_KEY_ATTR_VLAN
);
4306 return parse_l2_5_onward(attrs
, present_attrs
, out_of_range_attr
,
4307 expected_attrs
, flow
, key
, key_len
, src_flow
);
4310 /* Converts the 'key_len' bytes of OVS_KEY_ATTR_* attributes in 'key' to a flow
4311 * structure in 'flow'. Returns an ODP_FIT_* value that indicates how well
4312 * 'key' fits our expectations for what a flow key should contain.
4314 * The 'in_port' will be the datapath's understanding of the port. The
4315 * caller will need to translate with odp_port_to_ofp_port() if the
4316 * OpenFlow port is needed.
4318 * This function doesn't take the packet itself as an argument because none of
4319 * the currently understood OVS_KEY_ATTR_* attributes require it. Currently,
4320 * it is always possible to infer which additional attribute(s) should appear
4321 * by looking at the attributes for lower-level protocols, e.g. if the network
4322 * protocol in OVS_KEY_ATTR_IPV4 or OVS_KEY_ATTR_IPV6 is IPPROTO_TCP then we
4323 * know that a OVS_KEY_ATTR_TCP attribute must appear and that otherwise it
4324 * must be absent. */
4325 enum odp_key_fitness
4326 odp_flow_key_to_flow(const struct nlattr
*key
, size_t key_len
,
4329 return odp_flow_key_to_flow__(key
, key_len
, NULL
, 0, flow
, flow
);
4332 /* Converts the 'mask_key_len' bytes of OVS_KEY_ATTR_* attributes in 'mask_key'
4333 * to a mask structure in 'mask'. 'flow' must be a previously translated flow
4334 * corresponding to 'mask' and similarly flow_key/flow_key_len must be the
4335 * attributes from that flow. Returns an ODP_FIT_* value that indicates how
4336 * well 'key' fits our expectations for what a flow key should contain. */
4337 enum odp_key_fitness
4338 odp_flow_key_to_mask(const struct nlattr
*mask_key
, size_t mask_key_len
,
4339 const struct nlattr
*flow_key
, size_t flow_key_len
,
4340 struct flow
*mask
, const struct flow
*flow
)
4342 return odp_flow_key_to_flow__(mask_key
, mask_key_len
, flow_key
, flow_key_len
,
4346 /* Returns 'fitness' as a string, for use in debug messages. */
4348 odp_key_fitness_to_string(enum odp_key_fitness fitness
)
4351 case ODP_FIT_PERFECT
:
4353 case ODP_FIT_TOO_MUCH
:
4355 case ODP_FIT_TOO_LITTLE
:
4356 return "too_little";
4364 /* Appends an OVS_ACTION_ATTR_USERSPACE action to 'odp_actions' that specifies
4365 * Netlink PID 'pid'. If 'userdata' is nonnull, adds a userdata attribute
4366 * whose contents are the 'userdata_size' bytes at 'userdata' and returns the
4367 * offset within 'odp_actions' of the start of the cookie. (If 'userdata' is
4368 * null, then the return value is not meaningful.) */
4370 odp_put_userspace_action(uint32_t pid
,
4371 const void *userdata
, size_t userdata_size
,
4372 odp_port_t tunnel_out_port
,
4373 struct ofpbuf
*odp_actions
)
4375 size_t userdata_ofs
;
4378 offset
= nl_msg_start_nested(odp_actions
, OVS_ACTION_ATTR_USERSPACE
);
4379 nl_msg_put_u32(odp_actions
, OVS_USERSPACE_ATTR_PID
, pid
);
4381 userdata_ofs
= odp_actions
->size
+ NLA_HDRLEN
;
4383 /* The OVS kernel module before OVS 1.11 and the upstream Linux kernel
4384 * module before Linux 3.10 required the userdata to be exactly 8 bytes
4387 * - The kernel rejected shorter userdata with -ERANGE.
4389 * - The kernel silently dropped userdata beyond the first 8 bytes.
4391 * Thus, for maximum compatibility, always put at least 8 bytes. (We
4392 * separately disable features that required more than 8 bytes.) */
4393 memcpy(nl_msg_put_unspec_zero(odp_actions
, OVS_USERSPACE_ATTR_USERDATA
,
4394 MAX(8, userdata_size
)),
4395 userdata
, userdata_size
);
4399 if (tunnel_out_port
!= ODPP_NONE
) {
4400 nl_msg_put_odp_port(odp_actions
, OVS_USERSPACE_ATTR_EGRESS_TUN_PORT
,
4403 nl_msg_end_nested(odp_actions
, offset
);
4405 return userdata_ofs
;
4409 odp_put_tunnel_action(const struct flow_tnl
*tunnel
,
4410 struct ofpbuf
*odp_actions
)
4412 size_t offset
= nl_msg_start_nested(odp_actions
, OVS_ACTION_ATTR_SET
);
4413 tun_key_to_attr(odp_actions
, tunnel
, tunnel
, NULL
);
4414 nl_msg_end_nested(odp_actions
, offset
);
4418 odp_put_tnl_push_action(struct ofpbuf
*odp_actions
,
4419 struct ovs_action_push_tnl
*data
)
4421 int size
= offsetof(struct ovs_action_push_tnl
, header
);
4423 size
+= data
->header_len
;
4424 nl_msg_put_unspec(odp_actions
, OVS_ACTION_ATTR_TUNNEL_PUSH
, data
, size
);
4428 /* The commit_odp_actions() function and its helpers. */
4431 commit_set_action(struct ofpbuf
*odp_actions
, enum ovs_key_attr key_type
,
4432 const void *key
, size_t key_size
)
4434 size_t offset
= nl_msg_start_nested(odp_actions
, OVS_ACTION_ATTR_SET
);
4435 nl_msg_put_unspec(odp_actions
, key_type
, key
, key_size
);
4436 nl_msg_end_nested(odp_actions
, offset
);
4439 /* Masked set actions have a mask following the data within the netlink
4440 * attribute. The unmasked bits in the data will be cleared as the data
4441 * is copied to the action. */
4443 commit_masked_set_action(struct ofpbuf
*odp_actions
,
4444 enum ovs_key_attr key_type
,
4445 const void *key_
, const void *mask_
, size_t key_size
)
4447 size_t offset
= nl_msg_start_nested(odp_actions
,
4448 OVS_ACTION_ATTR_SET_MASKED
);
4449 char *data
= nl_msg_put_unspec_uninit(odp_actions
, key_type
, key_size
* 2);
4450 const char *key
= key_
, *mask
= mask_
;
4452 memcpy(data
+ key_size
, mask
, key_size
);
4453 /* Clear unmasked bits while copying. */
4454 while (key_size
--) {
4455 *data
++ = *key
++ & *mask
++;
4457 nl_msg_end_nested(odp_actions
, offset
);
4460 /* If any of the flow key data that ODP actions can modify are different in
4461 * 'base->tunnel' and 'flow->tunnel', appends a set_tunnel ODP action to
4462 * 'odp_actions' that change the flow tunneling information in key from
4463 * 'base->tunnel' into 'flow->tunnel', and then changes 'base->tunnel' in the
4464 * same way. In other words, operates the same as commit_odp_actions(), but
4465 * only on tunneling information. */
4467 commit_odp_tunnel_action(const struct flow
*flow
, struct flow
*base
,
4468 struct ofpbuf
*odp_actions
)
4470 /* A valid IPV4_TUNNEL must have non-zero ip_dst. */
4471 if (flow
->tunnel
.ip_dst
) {
4472 if (!memcmp(&base
->tunnel
, &flow
->tunnel
, sizeof base
->tunnel
)) {
4475 memcpy(&base
->tunnel
, &flow
->tunnel
, sizeof base
->tunnel
);
4476 odp_put_tunnel_action(&base
->tunnel
, odp_actions
);
4481 commit(enum ovs_key_attr attr
, bool use_masked_set
,
4482 const void *key
, void *base
, void *mask
, size_t size
,
4483 struct ofpbuf
*odp_actions
)
4485 if (memcmp(key
, base
, size
)) {
4486 bool fully_masked
= odp_mask_is_exact(attr
, mask
, size
);
4488 if (use_masked_set
&& !fully_masked
) {
4489 commit_masked_set_action(odp_actions
, attr
, key
, mask
, size
);
4491 if (!fully_masked
) {
4492 memset(mask
, 0xff, size
);
4494 commit_set_action(odp_actions
, attr
, key
, size
);
4496 memcpy(base
, key
, size
);
4499 /* Mask bits are set when we have either read or set the corresponding
4500 * values. Masked bits will be exact-matched, no need to set them
4501 * if the value did not actually change. */
4507 get_ethernet_key(const struct flow
*flow
, struct ovs_key_ethernet
*eth
)
4509 memcpy(eth
->eth_src
, flow
->dl_src
, ETH_ADDR_LEN
);
4510 memcpy(eth
->eth_dst
, flow
->dl_dst
, ETH_ADDR_LEN
);
4514 put_ethernet_key(const struct ovs_key_ethernet
*eth
, struct flow
*flow
)
4516 memcpy(flow
->dl_src
, eth
->eth_src
, ETH_ADDR_LEN
);
4517 memcpy(flow
->dl_dst
, eth
->eth_dst
, ETH_ADDR_LEN
);
4521 commit_set_ether_addr_action(const struct flow
*flow
, struct flow
*base_flow
,
4522 struct ofpbuf
*odp_actions
,
4523 struct flow_wildcards
*wc
,
4526 struct ovs_key_ethernet key
, base
, mask
;
4528 get_ethernet_key(flow
, &key
);
4529 get_ethernet_key(base_flow
, &base
);
4530 get_ethernet_key(&wc
->masks
, &mask
);
4532 if (commit(OVS_KEY_ATTR_ETHERNET
, use_masked
,
4533 &key
, &base
, &mask
, sizeof key
, odp_actions
)) {
4534 put_ethernet_key(&base
, base_flow
);
4535 put_ethernet_key(&mask
, &wc
->masks
);
4540 pop_vlan(struct flow
*base
,
4541 struct ofpbuf
*odp_actions
, struct flow_wildcards
*wc
)
4543 memset(&wc
->masks
.vlan_tci
, 0xff, sizeof wc
->masks
.vlan_tci
);
4545 if (base
->vlan_tci
& htons(VLAN_CFI
)) {
4546 nl_msg_put_flag(odp_actions
, OVS_ACTION_ATTR_POP_VLAN
);
4552 commit_vlan_action(ovs_be16 vlan_tci
, struct flow
*base
,
4553 struct ofpbuf
*odp_actions
, struct flow_wildcards
*wc
)
4555 if (base
->vlan_tci
== vlan_tci
) {
4559 pop_vlan(base
, odp_actions
, wc
);
4560 if (vlan_tci
& htons(VLAN_CFI
)) {
4561 struct ovs_action_push_vlan vlan
;
4563 vlan
.vlan_tpid
= htons(ETH_TYPE_VLAN
);
4564 vlan
.vlan_tci
= vlan_tci
;
4565 nl_msg_put_unspec(odp_actions
, OVS_ACTION_ATTR_PUSH_VLAN
,
4566 &vlan
, sizeof vlan
);
4568 base
->vlan_tci
= vlan_tci
;
4571 /* Wildcarding already done at action translation time. */
4573 commit_mpls_action(const struct flow
*flow
, struct flow
*base
,
4574 struct ofpbuf
*odp_actions
)
4576 int base_n
= flow_count_mpls_labels(base
, NULL
);
4577 int flow_n
= flow_count_mpls_labels(flow
, NULL
);
4578 int common_n
= flow_count_common_mpls_labels(flow
, flow_n
, base
, base_n
,
4581 while (base_n
> common_n
) {
4582 if (base_n
- 1 == common_n
&& flow_n
> common_n
) {
4583 /* If there is only one more LSE in base than there are common
4584 * between base and flow; and flow has at least one more LSE than
4585 * is common then the topmost LSE of base may be updated using
4587 struct ovs_key_mpls mpls_key
;
4589 mpls_key
.mpls_lse
= flow
->mpls_lse
[flow_n
- base_n
];
4590 commit_set_action(odp_actions
, OVS_KEY_ATTR_MPLS
,
4591 &mpls_key
, sizeof mpls_key
);
4592 flow_set_mpls_lse(base
, 0, mpls_key
.mpls_lse
);
4595 /* Otherwise, if there more LSEs in base than are common between
4596 * base and flow then pop the topmost one. */
4600 /* If all the LSEs are to be popped and this is not the outermost
4601 * LSE then use ETH_TYPE_MPLS as the ethertype parameter of the
4602 * POP_MPLS action instead of flow->dl_type.
4604 * This is because the POP_MPLS action requires its ethertype
4605 * argument to be an MPLS ethernet type but in this case
4606 * flow->dl_type will be a non-MPLS ethernet type.
4608 * When the final POP_MPLS action occurs it use flow->dl_type and
4609 * the and the resulting packet will have the desired dl_type. */
4610 if ((!eth_type_mpls(flow
->dl_type
)) && base_n
> 1) {
4611 dl_type
= htons(ETH_TYPE_MPLS
);
4613 dl_type
= flow
->dl_type
;
4615 nl_msg_put_be16(odp_actions
, OVS_ACTION_ATTR_POP_MPLS
, dl_type
);
4616 popped
= flow_pop_mpls(base
, base_n
, flow
->dl_type
, NULL
);
4622 /* If, after the above popping and setting, there are more LSEs in flow
4623 * than base then some LSEs need to be pushed. */
4624 while (base_n
< flow_n
) {
4625 struct ovs_action_push_mpls
*mpls
;
4627 mpls
= nl_msg_put_unspec_zero(odp_actions
,
4628 OVS_ACTION_ATTR_PUSH_MPLS
,
4630 mpls
->mpls_ethertype
= flow
->dl_type
;
4631 mpls
->mpls_lse
= flow
->mpls_lse
[flow_n
- base_n
- 1];
4632 flow_push_mpls(base
, base_n
, mpls
->mpls_ethertype
, NULL
);
4633 flow_set_mpls_lse(base
, 0, mpls
->mpls_lse
);
4639 get_ipv4_key(const struct flow
*flow
, struct ovs_key_ipv4
*ipv4
, bool is_mask
)
4641 ipv4
->ipv4_src
= flow
->nw_src
;
4642 ipv4
->ipv4_dst
= flow
->nw_dst
;
4643 ipv4
->ipv4_proto
= flow
->nw_proto
;
4644 ipv4
->ipv4_tos
= flow
->nw_tos
;
4645 ipv4
->ipv4_ttl
= flow
->nw_ttl
;
4646 ipv4
->ipv4_frag
= ovs_to_odp_frag(flow
->nw_frag
, is_mask
);
4650 put_ipv4_key(const struct ovs_key_ipv4
*ipv4
, struct flow
*flow
, bool is_mask
)
4652 flow
->nw_src
= ipv4
->ipv4_src
;
4653 flow
->nw_dst
= ipv4
->ipv4_dst
;
4654 flow
->nw_proto
= ipv4
->ipv4_proto
;
4655 flow
->nw_tos
= ipv4
->ipv4_tos
;
4656 flow
->nw_ttl
= ipv4
->ipv4_ttl
;
4657 flow
->nw_frag
= odp_to_ovs_frag(ipv4
->ipv4_frag
, is_mask
);
4661 commit_set_ipv4_action(const struct flow
*flow
, struct flow
*base_flow
,
4662 struct ofpbuf
*odp_actions
, struct flow_wildcards
*wc
,
4665 struct ovs_key_ipv4 key
, mask
, base
;
4667 /* Check that nw_proto and nw_frag remain unchanged. */
4668 ovs_assert(flow
->nw_proto
== base_flow
->nw_proto
&&
4669 flow
->nw_frag
== base_flow
->nw_frag
);
4671 get_ipv4_key(flow
, &key
, false);
4672 get_ipv4_key(base_flow
, &base
, false);
4673 get_ipv4_key(&wc
->masks
, &mask
, true);
4674 mask
.ipv4_proto
= 0; /* Not writeable. */
4675 mask
.ipv4_frag
= 0; /* Not writable. */
4677 if (commit(OVS_KEY_ATTR_IPV4
, use_masked
, &key
, &base
, &mask
, sizeof key
,
4679 put_ipv4_key(&base
, base_flow
, false);
4680 if (mask
.ipv4_proto
!= 0) { /* Mask was changed by commit(). */
4681 put_ipv4_key(&mask
, &wc
->masks
, true);
4687 get_ipv6_key(const struct flow
*flow
, struct ovs_key_ipv6
*ipv6
, bool is_mask
)
4689 memcpy(ipv6
->ipv6_src
, &flow
->ipv6_src
, sizeof ipv6
->ipv6_src
);
4690 memcpy(ipv6
->ipv6_dst
, &flow
->ipv6_dst
, sizeof ipv6
->ipv6_dst
);
4691 ipv6
->ipv6_label
= flow
->ipv6_label
;
4692 ipv6
->ipv6_proto
= flow
->nw_proto
;
4693 ipv6
->ipv6_tclass
= flow
->nw_tos
;
4694 ipv6
->ipv6_hlimit
= flow
->nw_ttl
;
4695 ipv6
->ipv6_frag
= ovs_to_odp_frag(flow
->nw_frag
, is_mask
);
4699 put_ipv6_key(const struct ovs_key_ipv6
*ipv6
, struct flow
*flow
, bool is_mask
)
4701 memcpy(&flow
->ipv6_src
, ipv6
->ipv6_src
, sizeof flow
->ipv6_src
);
4702 memcpy(&flow
->ipv6_dst
, ipv6
->ipv6_dst
, sizeof flow
->ipv6_dst
);
4703 flow
->ipv6_label
= ipv6
->ipv6_label
;
4704 flow
->nw_proto
= ipv6
->ipv6_proto
;
4705 flow
->nw_tos
= ipv6
->ipv6_tclass
;
4706 flow
->nw_ttl
= ipv6
->ipv6_hlimit
;
4707 flow
->nw_frag
= odp_to_ovs_frag(ipv6
->ipv6_frag
, is_mask
);
4711 commit_set_ipv6_action(const struct flow
*flow
, struct flow
*base_flow
,
4712 struct ofpbuf
*odp_actions
, struct flow_wildcards
*wc
,
4715 struct ovs_key_ipv6 key
, mask
, base
;
4717 /* Check that nw_proto and nw_frag remain unchanged. */
4718 ovs_assert(flow
->nw_proto
== base_flow
->nw_proto
&&
4719 flow
->nw_frag
== base_flow
->nw_frag
);
4721 get_ipv6_key(flow
, &key
, false);
4722 get_ipv6_key(base_flow
, &base
, false);
4723 get_ipv6_key(&wc
->masks
, &mask
, true);
4724 mask
.ipv6_proto
= 0; /* Not writeable. */
4725 mask
.ipv6_frag
= 0; /* Not writable. */
4727 if (commit(OVS_KEY_ATTR_IPV6
, use_masked
, &key
, &base
, &mask
, sizeof key
,
4729 put_ipv6_key(&base
, base_flow
, false);
4730 if (mask
.ipv6_proto
!= 0) { /* Mask was changed by commit(). */
4731 put_ipv6_key(&mask
, &wc
->masks
, true);
4737 get_arp_key(const struct flow
*flow
, struct ovs_key_arp
*arp
)
4739 /* ARP key has padding, clear it. */
4740 memset(arp
, 0, sizeof *arp
);
4742 arp
->arp_sip
= flow
->nw_src
;
4743 arp
->arp_tip
= flow
->nw_dst
;
4744 arp
->arp_op
= htons(flow
->nw_proto
);
4745 memcpy(arp
->arp_sha
, flow
->arp_sha
, ETH_ADDR_LEN
);
4746 memcpy(arp
->arp_tha
, flow
->arp_tha
, ETH_ADDR_LEN
);
4750 put_arp_key(const struct ovs_key_arp
*arp
, struct flow
*flow
)
4752 flow
->nw_src
= arp
->arp_sip
;
4753 flow
->nw_dst
= arp
->arp_tip
;
4754 flow
->nw_proto
= ntohs(arp
->arp_op
);
4755 memcpy(flow
->arp_sha
, arp
->arp_sha
, ETH_ADDR_LEN
);
4756 memcpy(flow
->arp_tha
, arp
->arp_tha
, ETH_ADDR_LEN
);
4759 static enum slow_path_reason
4760 commit_set_arp_action(const struct flow
*flow
, struct flow
*base_flow
,
4761 struct ofpbuf
*odp_actions
, struct flow_wildcards
*wc
)
4763 struct ovs_key_arp key
, mask
, base
;
4765 get_arp_key(flow
, &key
);
4766 get_arp_key(base_flow
, &base
);
4767 get_arp_key(&wc
->masks
, &mask
);
4769 if (commit(OVS_KEY_ATTR_ARP
, true, &key
, &base
, &mask
, sizeof key
,
4771 put_arp_key(&base
, base_flow
);
4772 put_arp_key(&mask
, &wc
->masks
);
4779 get_nd_key(const struct flow
*flow
, struct ovs_key_nd
*nd
)
4781 memcpy(nd
->nd_target
, &flow
->nd_target
, sizeof flow
->nd_target
);
4782 /* nd_sll and nd_tll are stored in arp_sha and arp_tha, respectively */
4783 memcpy(nd
->nd_sll
, flow
->arp_sha
, ETH_ADDR_LEN
);
4784 memcpy(nd
->nd_tll
, flow
->arp_tha
, ETH_ADDR_LEN
);
4788 put_nd_key(const struct ovs_key_nd
*nd
, struct flow
*flow
)
4790 memcpy(&flow
->nd_target
, &flow
->nd_target
, sizeof flow
->nd_target
);
4791 /* nd_sll and nd_tll are stored in arp_sha and arp_tha, respectively */
4792 memcpy(flow
->arp_sha
, nd
->nd_sll
, ETH_ADDR_LEN
);
4793 memcpy(flow
->arp_tha
, nd
->nd_tll
, ETH_ADDR_LEN
);
4796 static enum slow_path_reason
4797 commit_set_nd_action(const struct flow
*flow
, struct flow
*base_flow
,
4798 struct ofpbuf
*odp_actions
,
4799 struct flow_wildcards
*wc
, bool use_masked
)
4801 struct ovs_key_nd key
, mask
, base
;
4803 get_nd_key(flow
, &key
);
4804 get_nd_key(base_flow
, &base
);
4805 get_nd_key(&wc
->masks
, &mask
);
4807 if (commit(OVS_KEY_ATTR_ND
, use_masked
, &key
, &base
, &mask
, sizeof key
,
4809 put_nd_key(&base
, base_flow
);
4810 put_nd_key(&mask
, &wc
->masks
);
4817 static enum slow_path_reason
4818 commit_set_nw_action(const struct flow
*flow
, struct flow
*base
,
4819 struct ofpbuf
*odp_actions
, struct flow_wildcards
*wc
,
4822 /* Check if 'flow' really has an L3 header. */
4823 if (!flow
->nw_proto
) {
4827 switch (ntohs(base
->dl_type
)) {
4829 commit_set_ipv4_action(flow
, base
, odp_actions
, wc
, use_masked
);
4833 commit_set_ipv6_action(flow
, base
, odp_actions
, wc
, use_masked
);
4834 return commit_set_nd_action(flow
, base
, odp_actions
, wc
, use_masked
);
4837 return commit_set_arp_action(flow
, base
, odp_actions
, wc
);
4843 /* TCP, UDP, and SCTP keys have the same layout. */
4844 BUILD_ASSERT_DECL(sizeof(struct ovs_key_tcp
) == sizeof(struct ovs_key_udp
) &&
4845 sizeof(struct ovs_key_tcp
) == sizeof(struct ovs_key_sctp
));
4848 get_tp_key(const struct flow
*flow
, union ovs_key_tp
*tp
)
4850 tp
->tcp
.tcp_src
= flow
->tp_src
;
4851 tp
->tcp
.tcp_dst
= flow
->tp_dst
;
4855 put_tp_key(const union ovs_key_tp
*tp
, struct flow
*flow
)
4857 flow
->tp_src
= tp
->tcp
.tcp_src
;
4858 flow
->tp_dst
= tp
->tcp
.tcp_dst
;
4862 commit_set_port_action(const struct flow
*flow
, struct flow
*base_flow
,
4863 struct ofpbuf
*odp_actions
, struct flow_wildcards
*wc
,
4866 enum ovs_key_attr key_type
;
4867 union ovs_key_tp key
, mask
, base
;
4869 /* Check if 'flow' really has an L3 header. */
4870 if (!flow
->nw_proto
) {
4874 if (!is_ip_any(base_flow
)) {
4878 if (flow
->nw_proto
== IPPROTO_TCP
) {
4879 key_type
= OVS_KEY_ATTR_TCP
;
4880 } else if (flow
->nw_proto
== IPPROTO_UDP
) {
4881 key_type
= OVS_KEY_ATTR_UDP
;
4882 } else if (flow
->nw_proto
== IPPROTO_SCTP
) {
4883 key_type
= OVS_KEY_ATTR_SCTP
;
4888 get_tp_key(flow
, &key
);
4889 get_tp_key(base_flow
, &base
);
4890 get_tp_key(&wc
->masks
, &mask
);
4892 if (commit(key_type
, use_masked
, &key
, &base
, &mask
, sizeof key
,
4894 put_tp_key(&base
, base_flow
);
4895 put_tp_key(&mask
, &wc
->masks
);
4900 commit_set_priority_action(const struct flow
*flow
, struct flow
*base_flow
,
4901 struct ofpbuf
*odp_actions
,
4902 struct flow_wildcards
*wc
,
4905 uint32_t key
, mask
, base
;
4907 key
= flow
->skb_priority
;
4908 base
= base_flow
->skb_priority
;
4909 mask
= wc
->masks
.skb_priority
;
4911 if (commit(OVS_KEY_ATTR_PRIORITY
, use_masked
, &key
, &base
, &mask
,
4912 sizeof key
, odp_actions
)) {
4913 base_flow
->skb_priority
= base
;
4914 wc
->masks
.skb_priority
= mask
;
4919 commit_set_pkt_mark_action(const struct flow
*flow
, struct flow
*base_flow
,
4920 struct ofpbuf
*odp_actions
,
4921 struct flow_wildcards
*wc
,
4924 uint32_t key
, mask
, base
;
4926 key
= flow
->pkt_mark
;
4927 base
= base_flow
->pkt_mark
;
4928 mask
= wc
->masks
.pkt_mark
;
4930 if (commit(OVS_KEY_ATTR_SKB_MARK
, use_masked
, &key
, &base
, &mask
,
4931 sizeof key
, odp_actions
)) {
4932 base_flow
->pkt_mark
= base
;
4933 wc
->masks
.pkt_mark
= mask
;
4937 /* If any of the flow key data that ODP actions can modify are different in
4938 * 'base' and 'flow', appends ODP actions to 'odp_actions' that change the flow
4939 * key from 'base' into 'flow', and then changes 'base' the same way. Does not
4940 * commit set_tunnel actions. Users should call commit_odp_tunnel_action()
4941 * in addition to this function if needed. Sets fields in 'wc' that are
4942 * used as part of the action.
4944 * Returns a reason to force processing the flow's packets into the userspace
4945 * slow path, if there is one, otherwise 0. */
4946 enum slow_path_reason
4947 commit_odp_actions(const struct flow
*flow
, struct flow
*base
,
4948 struct ofpbuf
*odp_actions
, struct flow_wildcards
*wc
,
4951 enum slow_path_reason slow
;
4953 commit_set_ether_addr_action(flow
, base
, odp_actions
, wc
, use_masked
);
4954 slow
= commit_set_nw_action(flow
, base
, odp_actions
, wc
, use_masked
);
4955 commit_set_port_action(flow
, base
, odp_actions
, wc
, use_masked
);
4956 commit_mpls_action(flow
, base
, odp_actions
);
4957 commit_vlan_action(flow
->vlan_tci
, base
, odp_actions
, wc
);
4958 commit_set_priority_action(flow
, base
, odp_actions
, wc
, use_masked
);
4959 commit_set_pkt_mark_action(flow
, base
, odp_actions
, wc
, use_masked
);