2 * f_flower.c Flower Classifier
4 * This program is free software; you can distribute it and/or
5 * modify it under the terms of the GNU General Public License
6 * as published by the Free Software Foundation; either version
7 * 2 of the License, or (at your option) any later version.
9 * Authors: Jiri Pirko <jiri@resnulli.us>
18 #include <linux/if_arp.h>
19 #include <linux/if_ether.h>
21 #include <linux/tc_act/tc_vlan.h>
27 enum flower_matching_flags
{
31 enum flower_endpoint
{
36 enum flower_icmp_field
{
37 FLOWER_ICMP_FIELD_TYPE
,
38 FLOWER_ICMP_FIELD_CODE
41 static void explain(void)
44 "Usage: ... flower [ MATCH-LIST ]\n"
45 " [ skip_sw | skip_hw ]\n"
46 " [ action ACTION-SPEC ] [ classid CLASSID ]\n"
48 "Where: MATCH-LIST := [ MATCH-LIST ] MATCH\n"
49 " MATCH := { indev DEV-NAME |\n"
51 " vlan_prio PRIORITY |\n"
52 " vlan_ethtype [ ipv4 | ipv6 | ETH-TYPE ] |\n"
53 " dst_mac MASKED-LLADDR |\n"
54 " src_mac MASKED-LLADDR |\n"
55 " ip_proto [tcp | udp | sctp | icmp | icmpv6 | IP-PROTO ] |\n"
56 " ip_tos MASKED-IP_TOS |\n"
57 " ip_ttl MASKED-IP_TTL |\n"
60 " dst_port PORT-NUMBER |\n"
61 " src_port PORT-NUMBER |\n"
62 " tcp_flags MASKED-TCP_FLAGS |\n"
63 " type MASKED-ICMP-TYPE |\n"
64 " code MASKED-ICMP-CODE |\n"
65 " arp_tip IPV4-PREFIX |\n"
66 " arp_sip IPV4-PREFIX |\n"
67 " arp_op [ request | reply | OP ] |\n"
68 " arp_tha MASKED-LLADDR |\n"
69 " arp_sha MASKED-LLADDR |\n"
70 " enc_dst_ip [ IPV4-ADDR | IPV6-ADDR ] |\n"
71 " enc_src_ip [ IPV4-ADDR | IPV6-ADDR ] |\n"
72 " enc_key_id [ KEY-ID ] |\n"
73 " ip_flags IP-FLAGS | \n"
74 " enc_dst_port [ port_number ] }\n"
75 " FILTERID := X:Y:Z\n"
76 " MASKED_LLADDR := { LLADDR | LLADDR/MASK | LLADDR/BITS }\n"
77 " ACTION-SPEC := ... look at individual actions\n"
79 "NOTE: CLASSID, IP-PROTO are parsed as hexadecimal input.\n"
80 "NOTE: There can be only used one mask per one prio. If user needs\n"
81 " to specify different mask, he has to use different prio.\n");
84 static int flower_parse_eth_addr(char *str
, int addr_type
, int mask_type
,
88 char addr
[ETH_ALEN
], *slash
;
90 slash
= strchr(str
, '/');
94 ret
= ll_addr_a2n(addr
, sizeof(addr
), str
);
97 addattr_l(n
, MAX_MSG
, addr_type
, addr
, sizeof(addr
));
102 if (!get_unsigned(&bits
, slash
+ 1, 10)) {
105 /* Extra 16 bit shift to push mac address into
106 * high bits of uint64_t
108 mask
= htonll(0xffffffffffffULL
<< (16 + 48 - bits
));
109 memcpy(addr
, &mask
, ETH_ALEN
);
111 ret
= ll_addr_a2n(addr
, sizeof(addr
), slash
+ 1);
116 memset(addr
, 0xff, ETH_ALEN
);
118 addattr_l(n
, MAX_MSG
, mask_type
, addr
, sizeof(addr
));
127 static int flower_parse_vlan_eth_type(char *str
, __be16 eth_type
, int type
,
128 __be16
*p_vlan_eth_type
,
131 __be16 vlan_eth_type
;
133 if (eth_type
!= htons(ETH_P_8021Q
)) {
135 "Can't set \"vlan_ethtype\" if ethertype isn't 802.1Q\n");
139 if (ll_proto_a2n(&vlan_eth_type
, str
))
140 invarg("invalid vlan_ethtype", str
);
141 addattr16(n
, MAX_MSG
, type
, vlan_eth_type
);
142 *p_vlan_eth_type
= vlan_eth_type
;
146 struct flag_to_string
{
148 enum flower_matching_flags type
;
152 static struct flag_to_string flags_str
[] = {
153 { TCA_FLOWER_KEY_FLAGS_IS_FRAGMENT
, FLOWER_IP_FLAGS
, "frag" },
156 static int flower_parse_matching_flags(char *str
,
157 enum flower_matching_flags type
,
158 __u32
*mtf
, __u32
*mtf_mask
)
165 token
= strtok(str
, "/");
168 if (!strncmp(token
, "no", 2)) {
175 for (i
= 0; i
< ARRAY_SIZE(flags_str
); i
++) {
176 if (type
!= flags_str
[i
].type
)
179 if (!strcmp(token
, flags_str
[i
].string
)) {
181 *mtf
&= ~flags_str
[i
].flag
;
183 *mtf
|= flags_str
[i
].flag
;
185 *mtf_mask
|= flags_str
[i
].flag
;
193 token
= strtok(NULL
, "/");
199 static int flower_parse_ip_proto(char *str
, __be16 eth_type
, int type
,
200 __u8
*p_ip_proto
, struct nlmsghdr
*n
)
205 if (eth_type
!= htons(ETH_P_IP
) && eth_type
!= htons(ETH_P_IPV6
))
208 if (matches(str
, "tcp") == 0) {
209 ip_proto
= IPPROTO_TCP
;
210 } else if (matches(str
, "udp") == 0) {
211 ip_proto
= IPPROTO_UDP
;
212 } else if (matches(str
, "sctp") == 0) {
213 ip_proto
= IPPROTO_SCTP
;
214 } else if (matches(str
, "icmp") == 0) {
215 if (eth_type
!= htons(ETH_P_IP
))
217 ip_proto
= IPPROTO_ICMP
;
218 } else if (matches(str
, "icmpv6") == 0) {
219 if (eth_type
!= htons(ETH_P_IPV6
))
221 ip_proto
= IPPROTO_ICMPV6
;
223 ret
= get_u8(&ip_proto
, str
, 16);
227 addattr8(n
, MAX_MSG
, type
, ip_proto
);
228 *p_ip_proto
= ip_proto
;
232 fprintf(stderr
, "Illegal \"eth_type\" for ip proto\n");
236 static int __flower_parse_ip_addr(char *str
, int family
,
237 int addr4_type
, int mask4_type
,
238 int addr6_type
, int mask6_type
,
246 ret
= get_prefix(&addr
, str
, family
);
250 if (family
&& (addr
.family
!= family
)) {
251 fprintf(stderr
, "Illegal \"eth_type\" for ip address\n");
255 addattr_l(n
, MAX_MSG
, addr
.family
== AF_INET
? addr4_type
: addr6_type
,
256 addr
.data
, addr
.bytelen
);
258 memset(addr
.data
, 0xff, addr
.bytelen
);
260 for (i
= 0; i
< addr
.bytelen
/ 4; i
++) {
263 } else if (bits
/ 32 >= 1) {
266 addr
.data
[i
] <<= 32 - bits
;
267 addr
.data
[i
] = htonl(addr
.data
[i
]);
272 addattr_l(n
, MAX_MSG
, addr
.family
== AF_INET
? mask4_type
: mask6_type
,
273 addr
.data
, addr
.bytelen
);
278 static int flower_parse_ip_addr(char *str
, __be16 eth_type
,
279 int addr4_type
, int mask4_type
,
280 int addr6_type
, int mask6_type
,
285 if (eth_type
== htons(ETH_P_IP
)) {
287 } else if (eth_type
== htons(ETH_P_IPV6
)) {
289 } else if (!eth_type
) {
295 return __flower_parse_ip_addr(str
, family
, addr4_type
, mask4_type
,
296 addr6_type
, mask6_type
, n
);
299 static bool flower_eth_type_arp(__be16 eth_type
)
301 return eth_type
== htons(ETH_P_ARP
) || eth_type
== htons(ETH_P_RARP
);
304 static int flower_parse_arp_ip_addr(char *str
, __be16 eth_type
,
305 int addr_type
, int mask_type
,
308 if (!flower_eth_type_arp(eth_type
))
311 return __flower_parse_ip_addr(str
, AF_INET
, addr_type
, mask_type
,
312 TCA_FLOWER_UNSPEC
, TCA_FLOWER_UNSPEC
, n
);
315 static int flower_parse_u8(char *str
, int value_type
, int mask_type
,
316 int (*value_from_name
)(const char *str
,
318 bool (*value_validate
)(__u8 value
),
325 slash
= strchr(str
, '/');
329 ret
= value_from_name
? value_from_name(str
, &value
) : -1;
331 ret
= get_u8(&value
, str
, 10);
336 if (value_validate
&& !value_validate(value
))
340 ret
= get_u8(&mask
, slash
+ 1, 10);
348 addattr8(n
, MAX_MSG
, value_type
, value
);
349 addattr8(n
, MAX_MSG
, mask_type
, mask
);
358 static const char *flower_print_arp_op_to_name(__u8 op
)
370 static int flower_arp_op_from_name(const char *name
, __u8
*op
)
372 if (!strcmp(name
, "request"))
374 else if (!strcmp(name
, "reply"))
382 static bool flow_arp_op_validate(__u8 op
)
384 return !op
|| op
== ARPOP_REQUEST
|| op
== ARPOP_REPLY
;
387 static int flower_parse_arp_op(char *str
, __be16 eth_type
,
388 int op_type
, int mask_type
,
391 if (!flower_eth_type_arp(eth_type
))
394 return flower_parse_u8(str
, op_type
, mask_type
, flower_arp_op_from_name
,
395 flow_arp_op_validate
, n
);
398 static int flower_icmp_attr_type(__be16 eth_type
, __u8 ip_proto
,
399 enum flower_icmp_field field
)
401 if (eth_type
== htons(ETH_P_IP
) && ip_proto
== IPPROTO_ICMP
)
402 return field
== FLOWER_ICMP_FIELD_CODE
?
403 TCA_FLOWER_KEY_ICMPV4_CODE
:
404 TCA_FLOWER_KEY_ICMPV4_TYPE
;
405 else if (eth_type
== htons(ETH_P_IPV6
) && ip_proto
== IPPROTO_ICMPV6
)
406 return field
== FLOWER_ICMP_FIELD_CODE
?
407 TCA_FLOWER_KEY_ICMPV6_CODE
:
408 TCA_FLOWER_KEY_ICMPV6_TYPE
;
413 static int flower_icmp_attr_mask_type(__be16 eth_type
, __u8 ip_proto
,
414 enum flower_icmp_field field
)
416 if (eth_type
== htons(ETH_P_IP
) && ip_proto
== IPPROTO_ICMP
)
417 return field
== FLOWER_ICMP_FIELD_CODE
?
418 TCA_FLOWER_KEY_ICMPV4_CODE_MASK
:
419 TCA_FLOWER_KEY_ICMPV4_TYPE_MASK
;
420 else if (eth_type
== htons(ETH_P_IPV6
) && ip_proto
== IPPROTO_ICMPV6
)
421 return field
== FLOWER_ICMP_FIELD_CODE
?
422 TCA_FLOWER_KEY_ICMPV6_CODE_MASK
:
423 TCA_FLOWER_KEY_ICMPV6_TYPE_MASK
;
428 static int flower_parse_icmp(char *str
, __u16 eth_type
, __u8 ip_proto
,
429 enum flower_icmp_field field
, struct nlmsghdr
*n
)
431 int value_type
, mask_type
;
433 value_type
= flower_icmp_attr_type(eth_type
, ip_proto
, field
);
434 mask_type
= flower_icmp_attr_mask_type(eth_type
, ip_proto
, field
);
435 if (value_type
< 0 || mask_type
< 0)
438 return flower_parse_u8(str
, value_type
, mask_type
, NULL
, NULL
, n
);
441 static int flower_port_attr_type(__u8 ip_proto
, enum flower_endpoint endpoint
)
443 if (ip_proto
== IPPROTO_TCP
)
444 return endpoint
== FLOWER_ENDPOINT_SRC
?
445 TCA_FLOWER_KEY_TCP_SRC
:
446 TCA_FLOWER_KEY_TCP_DST
;
447 else if (ip_proto
== IPPROTO_UDP
)
448 return endpoint
== FLOWER_ENDPOINT_SRC
?
449 TCA_FLOWER_KEY_UDP_SRC
:
450 TCA_FLOWER_KEY_UDP_DST
;
451 else if (ip_proto
== IPPROTO_SCTP
)
452 return endpoint
== FLOWER_ENDPOINT_SRC
?
453 TCA_FLOWER_KEY_SCTP_SRC
:
454 TCA_FLOWER_KEY_SCTP_DST
;
459 static int flower_parse_port(char *str
, __u8 ip_proto
,
460 enum flower_endpoint endpoint
,
467 type
= flower_port_attr_type(ip_proto
, endpoint
);
471 ret
= get_be16(&port
, str
, 10);
475 addattr16(n
, MAX_MSG
, type
, port
);
480 #define TCP_FLAGS_MAX_MASK 0xfff
482 static int flower_parse_tcp_flags(char *str
, int flags_type
, int mask_type
,
489 slash
= strchr(str
, '/');
493 ret
= get_u16(&flags
, str
, 16);
494 if (ret
< 0 || flags
& ~TCP_FLAGS_MAX_MASK
)
497 addattr16(n
, MAX_MSG
, flags_type
, htons(flags
));
500 ret
= get_u16(&flags
, slash
+ 1, 16);
501 if (ret
< 0 || flags
& ~TCP_FLAGS_MAX_MASK
)
504 flags
= TCP_FLAGS_MAX_MASK
;
506 addattr16(n
, MAX_MSG
, mask_type
, htons(flags
));
515 static int flower_parse_ip_tos_ttl(char *str
, int key_type
, int mask_type
,
522 slash
= strchr(str
, '/');
526 ret
= get_u8(&tos_ttl
, str
, 10);
528 ret
= get_u8(&tos_ttl
, str
, 16);
532 addattr8(n
, MAX_MSG
, key_type
, tos_ttl
);
535 ret
= get_u8(&tos_ttl
, slash
+ 1, 16);
541 addattr8(n
, MAX_MSG
, mask_type
, tos_ttl
);
550 static int flower_parse_key_id(const char *str
, int type
, struct nlmsghdr
*n
)
555 ret
= get_be32(&key_id
, str
, 10);
557 addattr32(n
, MAX_MSG
, type
, key_id
);
562 static int flower_parse_enc_port(char *str
, int type
, struct nlmsghdr
*n
)
567 ret
= get_be16(&port
, str
, 10);
571 addattr16(n
, MAX_MSG
, type
, port
);
576 static int flower_parse_opt(struct filter_util
*qu
, char *handle
,
577 int argc
, char **argv
, struct nlmsghdr
*n
)
580 struct tcmsg
*t
= NLMSG_DATA(n
);
582 __be16 eth_type
= TC_H_MIN(t
->tcm_info
);
583 __be16 vlan_ethtype
= 0;
584 __u8 ip_proto
= 0xff;
590 ret
= get_u32(&t
->tcm_handle
, handle
, 0);
592 fprintf(stderr
, "Illegal \"handle\"\n");
597 tail
= (struct rtattr
*) (((void *) n
) + NLMSG_ALIGN(n
->nlmsg_len
));
598 addattr_l(n
, MAX_MSG
, TCA_OPTIONS
, NULL
, 0);
601 /*at minimal we will match all ethertype packets */
606 if (matches(*argv
, "classid") == 0 ||
607 matches(*argv
, "flowid") == 0) {
611 ret
= get_tc_classid(&handle
, *argv
);
613 fprintf(stderr
, "Illegal \"classid\"\n");
616 addattr_l(n
, MAX_MSG
, TCA_FLOWER_CLASSID
, &handle
, 4);
617 } else if (matches(*argv
, "ip_flags") == 0) {
619 ret
= flower_parse_matching_flags(*argv
,
624 fprintf(stderr
, "Illegal \"ip_flags\"\n");
627 } else if (matches(*argv
, "skip_hw") == 0) {
628 flags
|= TCA_CLS_FLAGS_SKIP_HW
;
629 } else if (matches(*argv
, "skip_sw") == 0) {
630 flags
|= TCA_CLS_FLAGS_SKIP_SW
;
631 } else if (matches(*argv
, "indev") == 0) {
632 char ifname
[IFNAMSIZ
] = {};
635 strncpy(ifname
, *argv
, sizeof(ifname
) - 1);
636 addattrstrz(n
, MAX_MSG
, TCA_FLOWER_INDEV
, ifname
);
637 } else if (matches(*argv
, "vlan_id") == 0) {
641 if (eth_type
!= htons(ETH_P_8021Q
)) {
643 "Can't set \"vlan_id\" if ethertype isn't 802.1Q\n");
646 ret
= get_u16(&vid
, *argv
, 10);
647 if (ret
< 0 || vid
& ~0xfff) {
648 fprintf(stderr
, "Illegal \"vlan_id\"\n");
651 addattr16(n
, MAX_MSG
, TCA_FLOWER_KEY_VLAN_ID
, vid
);
652 } else if (matches(*argv
, "vlan_prio") == 0) {
656 if (eth_type
!= htons(ETH_P_8021Q
)) {
658 "Can't set \"vlan_prio\" if ethertype isn't 802.1Q\n");
661 ret
= get_u8(&vlan_prio
, *argv
, 10);
662 if (ret
< 0 || vlan_prio
& ~0x7) {
663 fprintf(stderr
, "Illegal \"vlan_prio\"\n");
667 TCA_FLOWER_KEY_VLAN_PRIO
, vlan_prio
);
668 } else if (matches(*argv
, "vlan_ethtype") == 0) {
670 ret
= flower_parse_vlan_eth_type(*argv
, eth_type
,
671 TCA_FLOWER_KEY_VLAN_ETH_TYPE
,
675 } else if (matches(*argv
, "dst_mac") == 0) {
677 ret
= flower_parse_eth_addr(*argv
,
678 TCA_FLOWER_KEY_ETH_DST
,
679 TCA_FLOWER_KEY_ETH_DST_MASK
,
682 fprintf(stderr
, "Illegal \"dst_mac\"\n");
685 } else if (matches(*argv
, "src_mac") == 0) {
687 ret
= flower_parse_eth_addr(*argv
,
688 TCA_FLOWER_KEY_ETH_SRC
,
689 TCA_FLOWER_KEY_ETH_SRC_MASK
,
692 fprintf(stderr
, "Illegal \"src_mac\"\n");
695 } else if (matches(*argv
, "ip_proto") == 0) {
697 ret
= flower_parse_ip_proto(*argv
, vlan_ethtype
?
698 vlan_ethtype
: eth_type
,
699 TCA_FLOWER_KEY_IP_PROTO
,
702 fprintf(stderr
, "Illegal \"ip_proto\"\n");
705 } else if (matches(*argv
, "ip_tos") == 0) {
707 ret
= flower_parse_ip_tos_ttl(*argv
,
708 TCA_FLOWER_KEY_IP_TOS
,
709 TCA_FLOWER_KEY_IP_TOS_MASK
,
712 fprintf(stderr
, "Illegal \"ip_tos\"\n");
715 } else if (matches(*argv
, "ip_ttl") == 0) {
717 ret
= flower_parse_ip_tos_ttl(*argv
,
718 TCA_FLOWER_KEY_IP_TTL
,
719 TCA_FLOWER_KEY_IP_TTL_MASK
,
722 fprintf(stderr
, "Illegal \"ip_ttl\"\n");
725 } else if (matches(*argv
, "dst_ip") == 0) {
727 ret
= flower_parse_ip_addr(*argv
, vlan_ethtype
?
728 vlan_ethtype
: eth_type
,
729 TCA_FLOWER_KEY_IPV4_DST
,
730 TCA_FLOWER_KEY_IPV4_DST_MASK
,
731 TCA_FLOWER_KEY_IPV6_DST
,
732 TCA_FLOWER_KEY_IPV6_DST_MASK
,
735 fprintf(stderr
, "Illegal \"dst_ip\"\n");
738 } else if (matches(*argv
, "src_ip") == 0) {
740 ret
= flower_parse_ip_addr(*argv
, vlan_ethtype
?
741 vlan_ethtype
: eth_type
,
742 TCA_FLOWER_KEY_IPV4_SRC
,
743 TCA_FLOWER_KEY_IPV4_SRC_MASK
,
744 TCA_FLOWER_KEY_IPV6_SRC
,
745 TCA_FLOWER_KEY_IPV6_SRC_MASK
,
748 fprintf(stderr
, "Illegal \"src_ip\"\n");
751 } else if (matches(*argv
, "dst_port") == 0) {
753 ret
= flower_parse_port(*argv
, ip_proto
,
754 FLOWER_ENDPOINT_DST
, n
);
756 fprintf(stderr
, "Illegal \"dst_port\"\n");
759 } else if (matches(*argv
, "src_port") == 0) {
761 ret
= flower_parse_port(*argv
, ip_proto
,
762 FLOWER_ENDPOINT_SRC
, n
);
764 fprintf(stderr
, "Illegal \"src_port\"\n");
767 } else if (matches(*argv
, "tcp_flags") == 0) {
769 ret
= flower_parse_tcp_flags(*argv
,
770 TCA_FLOWER_KEY_TCP_FLAGS
,
771 TCA_FLOWER_KEY_TCP_FLAGS_MASK
,
774 fprintf(stderr
, "Illegal \"tcp_flags\"\n");
777 } else if (matches(*argv
, "type") == 0) {
779 ret
= flower_parse_icmp(*argv
, eth_type
, ip_proto
,
780 FLOWER_ICMP_FIELD_TYPE
, n
);
782 fprintf(stderr
, "Illegal \"icmp type\"\n");
785 } else if (matches(*argv
, "code") == 0) {
787 ret
= flower_parse_icmp(*argv
, eth_type
, ip_proto
,
788 FLOWER_ICMP_FIELD_CODE
, n
);
790 fprintf(stderr
, "Illegal \"icmp code\"\n");
793 } else if (matches(*argv
, "arp_tip") == 0) {
795 ret
= flower_parse_arp_ip_addr(*argv
, vlan_ethtype
?
796 vlan_ethtype
: eth_type
,
797 TCA_FLOWER_KEY_ARP_TIP
,
798 TCA_FLOWER_KEY_ARP_TIP_MASK
,
801 fprintf(stderr
, "Illegal \"arp_tip\"\n");
804 } else if (matches(*argv
, "arp_sip") == 0) {
806 ret
= flower_parse_arp_ip_addr(*argv
, vlan_ethtype
?
807 vlan_ethtype
: eth_type
,
808 TCA_FLOWER_KEY_ARP_SIP
,
809 TCA_FLOWER_KEY_ARP_SIP_MASK
,
812 fprintf(stderr
, "Illegal \"arp_sip\"\n");
815 } else if (matches(*argv
, "arp_op") == 0) {
817 ret
= flower_parse_arp_op(*argv
, vlan_ethtype
?
818 vlan_ethtype
: eth_type
,
819 TCA_FLOWER_KEY_ARP_OP
,
820 TCA_FLOWER_KEY_ARP_OP_MASK
,
823 fprintf(stderr
, "Illegal \"arp_op\"\n");
826 } else if (matches(*argv
, "arp_tha") == 0) {
828 ret
= flower_parse_eth_addr(*argv
,
829 TCA_FLOWER_KEY_ARP_THA
,
830 TCA_FLOWER_KEY_ARP_THA_MASK
,
833 fprintf(stderr
, "Illegal \"arp_tha\"\n");
836 } else if (matches(*argv
, "arp_sha") == 0) {
838 ret
= flower_parse_eth_addr(*argv
,
839 TCA_FLOWER_KEY_ARP_SHA
,
840 TCA_FLOWER_KEY_ARP_SHA_MASK
,
843 fprintf(stderr
, "Illegal \"arp_sha\"\n");
846 } else if (matches(*argv
, "enc_dst_ip") == 0) {
848 ret
= flower_parse_ip_addr(*argv
, 0,
849 TCA_FLOWER_KEY_ENC_IPV4_DST
,
850 TCA_FLOWER_KEY_ENC_IPV4_DST_MASK
,
851 TCA_FLOWER_KEY_ENC_IPV6_DST
,
852 TCA_FLOWER_KEY_ENC_IPV6_DST_MASK
,
855 fprintf(stderr
, "Illegal \"enc_dst_ip\"\n");
858 } else if (matches(*argv
, "enc_src_ip") == 0) {
860 ret
= flower_parse_ip_addr(*argv
, 0,
861 TCA_FLOWER_KEY_ENC_IPV4_SRC
,
862 TCA_FLOWER_KEY_ENC_IPV4_SRC_MASK
,
863 TCA_FLOWER_KEY_ENC_IPV6_SRC
,
864 TCA_FLOWER_KEY_ENC_IPV6_SRC_MASK
,
867 fprintf(stderr
, "Illegal \"enc_src_ip\"\n");
870 } else if (matches(*argv
, "enc_key_id") == 0) {
872 ret
= flower_parse_key_id(*argv
,
873 TCA_FLOWER_KEY_ENC_KEY_ID
, n
);
875 fprintf(stderr
, "Illegal \"enc_key_id\"\n");
878 } else if (matches(*argv
, "enc_dst_port") == 0) {
880 ret
= flower_parse_enc_port(*argv
,
881 TCA_FLOWER_KEY_ENC_UDP_DST_PORT
, n
);
883 fprintf(stderr
, "Illegal \"enc_dst_port\"\n");
886 } else if (matches(*argv
, "action") == 0) {
888 ret
= parse_action(&argc
, &argv
, TCA_FLOWER_ACT
, n
);
890 fprintf(stderr
, "Illegal \"action\"\n");
894 } else if (strcmp(*argv
, "help") == 0) {
898 fprintf(stderr
, "What is \"%s\"?\n", *argv
);
906 ret
= addattr32(n
, MAX_MSG
, TCA_FLOWER_FLAGS
, flags
);
911 ret
= addattr32(n
, MAX_MSG
, TCA_FLOWER_KEY_FLAGS
, htonl(mtf
));
915 ret
= addattr32(n
, MAX_MSG
, TCA_FLOWER_KEY_FLAGS_MASK
, htonl(mtf_mask
));
920 if (eth_type
!= htons(ETH_P_ALL
)) {
921 ret
= addattr16(n
, MAX_MSG
, TCA_FLOWER_KEY_ETH_TYPE
, eth_type
);
926 tail
->rta_len
= (((void *)n
)+n
->nlmsg_len
) - (void *)tail
;
931 static int __mask_bits(char *addr
, size_t len
)
938 for (i
= 0; i
< len
; i
++, addr
++) {
939 for (j
= 7; j
>= 0; j
--) {
940 if (((*addr
) >> j
) & 0x1) {
954 static void flower_print_eth_addr(FILE *f
, char *name
,
955 struct rtattr
*addr_attr
,
956 struct rtattr
*mask_attr
)
961 if (!addr_attr
|| RTA_PAYLOAD(addr_attr
) != ETH_ALEN
)
963 fprintf(f
, "\n %s %s", name
, ll_addr_n2a(RTA_DATA(addr_attr
), ETH_ALEN
,
965 if (!mask_attr
|| RTA_PAYLOAD(mask_attr
) != ETH_ALEN
)
967 bits
= __mask_bits(RTA_DATA(mask_attr
), ETH_ALEN
);
969 fprintf(f
, "/%s", ll_addr_n2a(RTA_DATA(mask_attr
), ETH_ALEN
,
971 else if (bits
< ETH_ALEN
* 8)
972 fprintf(f
, "/%d", bits
);
975 static void flower_print_eth_type(FILE *f
, __be16
*p_eth_type
,
976 struct rtattr
*eth_type_attr
)
983 eth_type
= rta_getattr_u16(eth_type_attr
);
984 fprintf(f
, "\n eth_type ");
985 if (eth_type
== htons(ETH_P_IP
))
987 else if (eth_type
== htons(ETH_P_IPV6
))
989 else if (eth_type
== htons(ETH_P_ARP
))
991 else if (eth_type
== htons(ETH_P_RARP
))
994 fprintf(f
, "%04x", ntohs(eth_type
));
995 *p_eth_type
= eth_type
;
998 static void flower_print_ip_proto(FILE *f
, __u8
*p_ip_proto
,
999 struct rtattr
*ip_proto_attr
)
1006 ip_proto
= rta_getattr_u8(ip_proto_attr
);
1007 fprintf(f
, "\n ip_proto ");
1008 if (ip_proto
== IPPROTO_TCP
)
1010 else if (ip_proto
== IPPROTO_UDP
)
1012 else if (ip_proto
== IPPROTO_SCTP
)
1014 else if (ip_proto
== IPPROTO_ICMP
)
1016 else if (ip_proto
== IPPROTO_ICMPV6
)
1017 fprintf(f
, "icmpv6");
1019 fprintf(f
, "%02x", ip_proto
);
1020 *p_ip_proto
= ip_proto
;
1023 static void flower_print_ip_attr(FILE *f
, char *name
,
1024 struct rtattr
*key_attr
,
1025 struct rtattr
*mask_attr
)
1030 fprintf(f
, "\n %s %x", name
, rta_getattr_u8(key_attr
));
1033 fprintf(f
, "/%x", rta_getattr_u8(mask_attr
));
1036 static void flower_print_matching_flags(FILE *f
, char *name
,
1037 enum flower_matching_flags type
,
1038 struct rtattr
*attr
,
1039 struct rtattr
*mask_attr
)
1046 if (!mask_attr
|| RTA_PAYLOAD(mask_attr
) != 4)
1049 mtf
= ntohl(rta_getattr_u32(attr
));
1050 mtf_mask
= ntohl(rta_getattr_u32(mask_attr
));
1052 for (i
= 0; i
< ARRAY_SIZE(flags_str
); i
++) {
1053 if (type
!= flags_str
[i
].type
)
1055 if (mtf_mask
& flags_str
[i
].flag
) {
1057 fprintf(f
, "\n %s ", name
);
1061 if (mtf
& flags_str
[i
].flag
)
1062 fprintf(f
, "%s", flags_str
[i
].string
);
1064 fprintf(f
, "no%s", flags_str
[i
].string
);
1069 static void flower_print_ip_addr(FILE *f
, char *name
, __be16 eth_type
,
1070 struct rtattr
*addr4_attr
,
1071 struct rtattr
*mask4_attr
,
1072 struct rtattr
*addr6_attr
,
1073 struct rtattr
*mask6_attr
)
1075 struct rtattr
*addr_attr
;
1076 struct rtattr
*mask_attr
;
1081 if (eth_type
== htons(ETH_P_IP
)) {
1083 addr_attr
= addr4_attr
;
1084 mask_attr
= mask4_attr
;
1086 } else if (eth_type
== htons(ETH_P_IPV6
)) {
1088 addr_attr
= addr6_attr
;
1089 mask_attr
= mask6_attr
;
1094 if (!addr_attr
|| RTA_PAYLOAD(addr_attr
) != len
)
1096 fprintf(f
, "\n %s %s", name
, rt_addr_n2a_rta(family
, addr_attr
));
1097 if (!mask_attr
|| RTA_PAYLOAD(mask_attr
) != len
)
1099 bits
= __mask_bits(RTA_DATA(mask_attr
), len
);
1101 fprintf(f
, "/%s", rt_addr_n2a_rta(family
, mask_attr
));
1102 else if (bits
< len
* 8)
1103 fprintf(f
, "/%d", bits
);
1105 static void flower_print_ip4_addr(FILE *f
, char *name
,
1106 struct rtattr
*addr_attr
,
1107 struct rtattr
*mask_attr
)
1109 return flower_print_ip_addr(f
, name
, htons(ETH_P_IP
),
1110 addr_attr
, mask_attr
, 0, 0);
1113 static void flower_print_port(FILE *f
, char *name
, struct rtattr
*attr
)
1116 fprintf(f
, "\n %s %d", name
, rta_getattr_be16(attr
));
1119 static void flower_print_tcp_flags(FILE *f
, char *name
,
1120 struct rtattr
*flags_attr
,
1121 struct rtattr
*mask_attr
)
1125 fprintf(f
, "\n %s %x", name
, rta_getattr_be16(flags_attr
));
1128 fprintf(f
, "/%x", rta_getattr_be16(mask_attr
));
1132 static void flower_print_key_id(FILE *f
, const char *name
,
1133 struct rtattr
*attr
)
1136 fprintf(f
, "\n %s %d", name
, rta_getattr_be32(attr
));
1139 static void flower_print_masked_u8(FILE *f
, const char *name
,
1140 struct rtattr
*attr
,
1141 struct rtattr
*mask_attr
,
1142 const char *(*value_to_str
)(__u8 value
))
1144 const char *value_str
= NULL
;
1150 value
= rta_getattr_u8(attr
);
1151 mask
= mask_attr
? rta_getattr_u8(mask_attr
) : UINT8_MAX
;
1152 if (mask
== UINT8_MAX
&& value_to_str
)
1153 value_str
= value_to_str(value
);
1155 fprintf(f
, "\n %s ", name
);
1158 fputs(value_str
, f
);
1160 fprintf(f
, "%d", value
);
1162 if (mask
!= UINT8_MAX
)
1163 fprintf(f
, "/%d", mask
);
1166 static void flower_print_arp_op(FILE *f
, const char *name
,
1167 struct rtattr
*op_attr
,
1168 struct rtattr
*mask_attr
)
1170 flower_print_masked_u8(f
, name
, op_attr
, mask_attr
,
1171 flower_print_arp_op_to_name
);
1174 static int flower_print_opt(struct filter_util
*qu
, FILE *f
,
1175 struct rtattr
*opt
, __u32 handle
)
1177 struct rtattr
*tb
[TCA_FLOWER_MAX
+ 1];
1178 int nl_type
, nl_mask_type
;
1179 __be16 eth_type
= 0;
1180 __u8 ip_proto
= 0xff;
1185 parse_rtattr_nested(tb
, TCA_FLOWER_MAX
, opt
);
1188 fprintf(f
, "handle 0x%x ", handle
);
1190 if (tb
[TCA_FLOWER_CLASSID
]) {
1192 fprintf(f
, "classid %s ",
1193 sprint_tc_classid(rta_getattr_u32(tb
[TCA_FLOWER_CLASSID
]),
1197 if (tb
[TCA_FLOWER_INDEV
]) {
1198 struct rtattr
*attr
= tb
[TCA_FLOWER_INDEV
];
1200 fprintf(f
, "\n indev %s", rta_getattr_str(attr
));
1203 if (tb
[TCA_FLOWER_KEY_VLAN_ID
]) {
1204 struct rtattr
*attr
= tb
[TCA_FLOWER_KEY_VLAN_ID
];
1206 fprintf(f
, "\n vlan_id %d", rta_getattr_u16(attr
));
1209 if (tb
[TCA_FLOWER_KEY_VLAN_PRIO
]) {
1210 struct rtattr
*attr
= tb
[TCA_FLOWER_KEY_VLAN_PRIO
];
1212 fprintf(f
, "\n vlan_prio %d", rta_getattr_u8(attr
));
1215 flower_print_eth_addr(f
, "dst_mac", tb
[TCA_FLOWER_KEY_ETH_DST
],
1216 tb
[TCA_FLOWER_KEY_ETH_DST_MASK
]);
1217 flower_print_eth_addr(f
, "src_mac", tb
[TCA_FLOWER_KEY_ETH_SRC
],
1218 tb
[TCA_FLOWER_KEY_ETH_SRC_MASK
]);
1220 flower_print_eth_type(f
, ð_type
, tb
[TCA_FLOWER_KEY_ETH_TYPE
]);
1221 flower_print_ip_proto(f
, &ip_proto
, tb
[TCA_FLOWER_KEY_IP_PROTO
]);
1223 flower_print_ip_attr(f
, "ip_tos", tb
[TCA_FLOWER_KEY_IP_TOS
],
1224 tb
[TCA_FLOWER_KEY_IP_TOS_MASK
]);
1225 flower_print_ip_attr(f
, "ip_ttl", tb
[TCA_FLOWER_KEY_IP_TTL
],
1226 tb
[TCA_FLOWER_KEY_IP_TTL_MASK
]);
1228 flower_print_ip_addr(f
, "dst_ip", eth_type
,
1229 tb
[TCA_FLOWER_KEY_IPV4_DST
],
1230 tb
[TCA_FLOWER_KEY_IPV4_DST_MASK
],
1231 tb
[TCA_FLOWER_KEY_IPV6_DST
],
1232 tb
[TCA_FLOWER_KEY_IPV6_DST_MASK
]);
1234 flower_print_ip_addr(f
, "src_ip", eth_type
,
1235 tb
[TCA_FLOWER_KEY_IPV4_SRC
],
1236 tb
[TCA_FLOWER_KEY_IPV4_SRC_MASK
],
1237 tb
[TCA_FLOWER_KEY_IPV6_SRC
],
1238 tb
[TCA_FLOWER_KEY_IPV6_SRC_MASK
]);
1240 nl_type
= flower_port_attr_type(ip_proto
, FLOWER_ENDPOINT_DST
);
1242 flower_print_port(f
, "dst_port", tb
[nl_type
]);
1243 nl_type
= flower_port_attr_type(ip_proto
, FLOWER_ENDPOINT_SRC
);
1245 flower_print_port(f
, "src_port", tb
[nl_type
]);
1247 flower_print_tcp_flags(f
, "tcp_flags", tb
[TCA_FLOWER_KEY_TCP_FLAGS
],
1248 tb
[TCA_FLOWER_KEY_TCP_FLAGS_MASK
]);
1250 nl_type
= flower_icmp_attr_type(eth_type
, ip_proto
,
1251 FLOWER_ICMP_FIELD_TYPE
);
1252 nl_mask_type
= flower_icmp_attr_mask_type(eth_type
, ip_proto
,
1253 FLOWER_ICMP_FIELD_TYPE
);
1254 if (nl_type
>= 0 && nl_mask_type
>= 0)
1255 flower_print_masked_u8(f
, "icmp_type", tb
[nl_type
],
1256 tb
[nl_mask_type
], NULL
);
1258 nl_type
= flower_icmp_attr_type(eth_type
, ip_proto
,
1259 FLOWER_ICMP_FIELD_CODE
);
1260 nl_mask_type
= flower_icmp_attr_mask_type(eth_type
, ip_proto
,
1261 FLOWER_ICMP_FIELD_CODE
);
1262 if (nl_type
>= 0 && nl_mask_type
>= 0)
1263 flower_print_masked_u8(f
, "icmp_code", tb
[nl_type
],
1264 tb
[nl_mask_type
], NULL
);
1266 flower_print_ip4_addr(f
, "arp_sip", tb
[TCA_FLOWER_KEY_ARP_SIP
],
1267 tb
[TCA_FLOWER_KEY_ARP_SIP_MASK
]);
1268 flower_print_ip4_addr(f
, "arp_tip", tb
[TCA_FLOWER_KEY_ARP_TIP
],
1269 tb
[TCA_FLOWER_KEY_ARP_TIP_MASK
]);
1270 flower_print_arp_op(f
, "arp_op", tb
[TCA_FLOWER_KEY_ARP_OP
],
1271 tb
[TCA_FLOWER_KEY_ARP_OP_MASK
]);
1272 flower_print_eth_addr(f
, "arp_sha", tb
[TCA_FLOWER_KEY_ARP_SHA
],
1273 tb
[TCA_FLOWER_KEY_ARP_SHA_MASK
]);
1274 flower_print_eth_addr(f
, "arp_tha", tb
[TCA_FLOWER_KEY_ARP_THA
],
1275 tb
[TCA_FLOWER_KEY_ARP_THA_MASK
]);
1277 flower_print_ip_addr(f
, "enc_dst_ip",
1278 tb
[TCA_FLOWER_KEY_ENC_IPV4_DST_MASK
] ?
1279 htons(ETH_P_IP
) : htons(ETH_P_IPV6
),
1280 tb
[TCA_FLOWER_KEY_ENC_IPV4_DST
],
1281 tb
[TCA_FLOWER_KEY_ENC_IPV4_DST_MASK
],
1282 tb
[TCA_FLOWER_KEY_ENC_IPV6_DST
],
1283 tb
[TCA_FLOWER_KEY_ENC_IPV6_DST_MASK
]);
1285 flower_print_ip_addr(f
, "enc_src_ip",
1286 tb
[TCA_FLOWER_KEY_ENC_IPV4_SRC_MASK
] ?
1287 htons(ETH_P_IP
) : htons(ETH_P_IPV6
),
1288 tb
[TCA_FLOWER_KEY_ENC_IPV4_SRC
],
1289 tb
[TCA_FLOWER_KEY_ENC_IPV4_SRC_MASK
],
1290 tb
[TCA_FLOWER_KEY_ENC_IPV6_SRC
],
1291 tb
[TCA_FLOWER_KEY_ENC_IPV6_SRC_MASK
]);
1293 flower_print_key_id(f
, "enc_key_id",
1294 tb
[TCA_FLOWER_KEY_ENC_KEY_ID
]);
1296 flower_print_port(f
, "enc_dst_port",
1297 tb
[TCA_FLOWER_KEY_ENC_UDP_DST_PORT
]);
1299 flower_print_matching_flags(f
, "ip_flags",
1301 tb
[TCA_FLOWER_KEY_FLAGS
],
1302 tb
[TCA_FLOWER_KEY_FLAGS_MASK
]);
1304 if (tb
[TCA_FLOWER_FLAGS
]) {
1305 __u32 flags
= rta_getattr_u32(tb
[TCA_FLOWER_FLAGS
]);
1307 if (flags
& TCA_CLS_FLAGS_SKIP_HW
)
1308 fprintf(f
, "\n skip_hw");
1309 if (flags
& TCA_CLS_FLAGS_SKIP_SW
)
1310 fprintf(f
, "\n skip_sw");
1312 if (flags
& TCA_CLS_FLAGS_IN_HW
)
1313 fprintf(f
, "\n in_hw");
1314 else if (flags
& TCA_CLS_FLAGS_NOT_IN_HW
)
1315 fprintf(f
, "\n not_in_hw");
1318 if (tb
[TCA_FLOWER_ACT
])
1319 tc_print_action(f
, tb
[TCA_FLOWER_ACT
], 0);
1324 struct filter_util flower_filter_util
= {
1326 .parse_fopt
= flower_parse_opt
,
1327 .print_fopt
= flower_print_opt
,