/*
- * Copyright (c) 2009, 2010 Nicira Networks.
+ * Copyright (c) 2009, 2010, 2011 Nicira Networks.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* limitations under the License.
*/
+#include <arpa/inet.h>
#include <config.h>
#include "odp-util.h"
+#include <errno.h>
#include <inttypes.h>
+#include <netinet/icmp6.h>
#include <stdlib.h>
#include <string.h>
+#include "byte-order.h"
#include "coverage.h"
#include "dynamic-string.h"
#include "flow.h"
+#include "netlink.h"
+#include "ofpbuf.h"
+#include "openvswitch/tunnel.h"
#include "packets.h"
#include "timeval.h"
#include "util.h"
-union odp_action *
-odp_actions_add(struct odp_actions *actions, uint16_t type)
+/* The interface between userspace and kernel uses an "OVS_*" prefix.
+ * Since this is fairly non-specific for the OVS userspace components,
+ * "ODP_*" (Open vSwitch Datapath) is used as the prefix for
+ * interactions with the datapath.
+ */
+
+/* Returns one the following for the action with the given OVS_ACTION_ATTR_*
+ * 'type':
+ *
+ * - For an action whose argument has a fixed length, returned that
+ * nonnegative length in bytes.
+ *
+ * - For an action with a variable-length argument, returns -2.
+ *
+ * - For an invalid 'type', returns -1. */
+int
+odp_action_len(uint16_t type)
{
- union odp_action *a;
- size_t idx;
-
- idx = actions->n_actions++ & (MAX_ODP_ACTIONS - 1);
- a = &actions->actions[idx];
- memset(a, 0, sizeof *a);
- a->type = type;
- return a;
+ if (type > OVS_ACTION_ATTR_MAX) {
+ return -1;
+ }
+
+ switch ((enum ovs_action_type) type) {
+ case OVS_ACTION_ATTR_OUTPUT: return 4;
+ case OVS_ACTION_ATTR_USERSPACE: return -2;
+ case OVS_ACTION_ATTR_PUSH_VLAN: return 2;
+ case OVS_ACTION_ATTR_POP_VLAN: return 0;
+ case OVS_ACTION_ATTR_SET_DL_SRC: return ETH_ADDR_LEN;
+ case OVS_ACTION_ATTR_SET_DL_DST: return ETH_ADDR_LEN;
+ case OVS_ACTION_ATTR_SET_NW_SRC: return 4;
+ case OVS_ACTION_ATTR_SET_NW_DST: return 4;
+ case OVS_ACTION_ATTR_SET_NW_TOS: return 1;
+ case OVS_ACTION_ATTR_SET_TP_SRC: return 2;
+ case OVS_ACTION_ATTR_SET_TP_DST: return 2;
+ case OVS_ACTION_ATTR_SET_TUNNEL: return 8;
+ case OVS_ACTION_ATTR_SET_PRIORITY: return 4;
+ case OVS_ACTION_ATTR_POP_PRIORITY: return 0;
+ case OVS_ACTION_ATTR_SAMPLE: return -2;
+
+ case OVS_ACTION_ATTR_UNSPEC:
+ case __OVS_ACTION_ATTR_MAX:
+ return -1;
+ }
+
+ return -1;
}
-void
-format_odp_flow_key(struct ds *ds, const struct odp_flow_key *key)
+static void
+format_generic_odp_action(struct ds *ds, const struct nlattr *a)
{
- ds_put_format(ds, "tun_id0x%08x in_port%d tci(",
- key->tun_id, key->in_port);
- if (key->dl_tci) {
- ds_put_format(ds, "vlan%"PRIu16",pcp%d",
- vlan_tci_to_vid(key->dl_tci),
- vlan_tci_to_pcp(key->dl_tci));
- } else {
- ds_put_char(ds, '0');
- }
- ds_put_format(ds, ") mac"ETH_ADDR_FMT"->"ETH_ADDR_FMT" type%04x "
- "proto%"PRId8" tos%"PRIu8" ip"IP_FMT"->"IP_FMT" port%d->%d",
- ETH_ADDR_ARGS(key->dl_src), ETH_ADDR_ARGS(key->dl_dst),
- ntohs(key->dl_type), key->nw_proto, key->nw_tos,
- IP_ARGS(&key->nw_src), IP_ARGS(&key->nw_dst),
- ntohs(key->tp_src), ntohs(key->tp_dst));
+ size_t len = nl_attr_get_size(a);
+
+ ds_put_format(ds, "action%"PRId16, nl_attr_type(a));
+ if (len) {
+ const uint8_t *unspec;
+ unsigned int i;
+
+ unspec = nl_attr_get(a);
+ for (i = 0; i < len; i++) {
+ ds_put_char(ds, i ? ' ': '(');
+ ds_put_format(ds, "%02x", unspec[i]);
+ }
+ ds_put_char(ds, ')');
+ }
}
+static void
+format_odp_sample_action(struct ds *ds, const struct nlattr *attr)
+{
+ static const struct nl_policy ovs_sample_policy[] = {
+ [OVS_SAMPLE_ATTR_PROBABILITY] = { .type = NL_A_U32 },
+ [OVS_SAMPLE_ATTR_ACTIONS] = { .type = NL_A_NESTED }
+ };
+ struct nlattr *a[ARRAY_SIZE(ovs_sample_policy)];
+ double percentage;
+ const struct nlattr *nla_acts;
+ int len;
+
+ ds_put_cstr(ds, "sample");
+
+ if (!nl_parse_nested(attr, ovs_sample_policy, a, ARRAY_SIZE(a))) {
+ ds_put_cstr(ds, "(error)");
+ return;
+ }
+
+ percentage = (100.0 * nl_attr_get_u32(a[OVS_SAMPLE_ATTR_PROBABILITY])) /
+ UINT32_MAX;
+
+ ds_put_format(ds, "(sample=%.1f%%,", percentage);
+
+ ds_put_cstr(ds, "actions(");
+ nla_acts = nl_attr_get(a[OVS_SAMPLE_ATTR_ACTIONS]);
+ len = nl_attr_get_size(a[OVS_SAMPLE_ATTR_ACTIONS]);
+ format_odp_actions(ds, nla_acts, len);
+ ds_put_format(ds, "))");
+}
+
+static void
+format_odp_userspace_action(struct ds *ds, const struct nlattr *attr)
+{
+ static const struct nl_policy ovs_userspace_policy[] = {
+ [OVS_USERSPACE_ATTR_PID] = { .type = NL_A_U32 },
+ [OVS_USERSPACE_ATTR_USERDATA] = { .type = NL_A_U64, .optional = true },
+ };
+ struct nlattr *a[ARRAY_SIZE(ovs_userspace_policy)];
+
+ if (!nl_parse_nested(attr, ovs_userspace_policy, a, ARRAY_SIZE(a))) {
+ ds_put_cstr(ds, "userspace(error)");
+ return;
+ }
+
+ ds_put_format(ds, "userspace(pid=%"PRIu32,
+ nl_attr_get_u32(a[OVS_USERSPACE_ATTR_PID]));
+
+ if (a[OVS_USERSPACE_ATTR_USERDATA]) {
+ uint64_t userdata = nl_attr_get_u64(a[OVS_USERSPACE_ATTR_USERDATA]);
+ struct user_action_cookie cookie;
+
+ memcpy(&cookie, &userdata, sizeof cookie);
+
+ if (cookie.type == USER_ACTION_COOKIE_CONTROLLER) {
+ ds_put_format(ds, ",controller,length=%"PRIu32,
+ cookie.data);
+ } else if (cookie.type == USER_ACTION_COOKIE_SFLOW) {
+ ds_put_format(ds, ",sFlow,n_output=%"PRIu8","
+ "vid=%"PRIu16",pcp=%"PRIu8",ifindex=%"PRIu32,
+ cookie.n_output, vlan_tci_to_vid(cookie.vlan_tci),
+ vlan_tci_to_pcp(cookie.vlan_tci), cookie.data);
+ } else {
+ ds_put_format(ds, ",userdata=0x%"PRIx64, userdata);
+ }
+ }
+
+ ds_put_char(ds, ')');
+}
+
+
void
-format_odp_action(struct ds *ds, const union odp_action *a)
+format_odp_action(struct ds *ds, const struct nlattr *a)
{
- switch (a->type) {
- case ODPAT_OUTPUT:
- ds_put_format(ds, "%"PRIu16, a->output.port);
+ const uint8_t *eth;
+ int expected_len;
+ ovs_be32 ip;
+
+ expected_len = odp_action_len(nl_attr_type(a));
+ if (expected_len != -2 && nl_attr_get_size(a) != expected_len) {
+ ds_put_format(ds, "bad length %zu, expected %d for: ",
+ nl_attr_get_size(a), expected_len);
+ format_generic_odp_action(ds, a);
+ return;
+ }
+
+ switch (nl_attr_type(a)) {
+ case OVS_ACTION_ATTR_OUTPUT:
+ ds_put_format(ds, "%"PRIu16, nl_attr_get_u32(a));
break;
- case ODPAT_CONTROLLER:
- ds_put_format(ds, "ctl(%"PRIu32")", a->controller.arg);
+ case OVS_ACTION_ATTR_USERSPACE:
+ format_odp_userspace_action(ds, a);
break;
- case ODPAT_SET_TUNNEL:
- ds_put_format(ds, "set_tunnel(0x%08"PRIx32")", ntohl(a->tunnel.tun_id));
+ case OVS_ACTION_ATTR_SET_TUNNEL:
+ ds_put_format(ds, "set_tunnel(%#"PRIx64")",
+ ntohll(nl_attr_get_be64(a)));
break;
- case ODPAT_SET_DL_TCI:
- ds_put_format(ds, "set_tci(vid=%"PRIu16",pcp=%d)",
- vlan_tci_to_vid(a->dl_tci.tci),
- vlan_tci_to_pcp(a->dl_tci.tci));
+ case OVS_ACTION_ATTR_PUSH_VLAN:
+ ds_put_format(ds, "push_vlan(vid=%"PRIu16",pcp=%d)",
+ vlan_tci_to_vid(nl_attr_get_be16(a)),
+ vlan_tci_to_pcp(nl_attr_get_be16(a)));
break;
- case ODPAT_STRIP_VLAN:
- ds_put_format(ds, "strip_vlan");
+ case OVS_ACTION_ATTR_POP_VLAN:
+ ds_put_format(ds, "pop_vlan");
break;
- case ODPAT_SET_DL_SRC:
- ds_put_format(ds, "set_dl_src("ETH_ADDR_FMT")",
- ETH_ADDR_ARGS(a->dl_addr.dl_addr));
+ case OVS_ACTION_ATTR_SET_DL_SRC:
+ eth = nl_attr_get_unspec(a, ETH_ADDR_LEN);
+ ds_put_format(ds, "set_dl_src("ETH_ADDR_FMT")", ETH_ADDR_ARGS(eth));
break;
- case ODPAT_SET_DL_DST:
- ds_put_format(ds, "set_dl_dst("ETH_ADDR_FMT")",
- ETH_ADDR_ARGS(a->dl_addr.dl_addr));
+ case OVS_ACTION_ATTR_SET_DL_DST:
+ eth = nl_attr_get_unspec(a, ETH_ADDR_LEN);
+ ds_put_format(ds, "set_dl_dst("ETH_ADDR_FMT")", ETH_ADDR_ARGS(eth));
break;
- case ODPAT_SET_NW_SRC:
- ds_put_format(ds, "set_nw_src("IP_FMT")",
- IP_ARGS(&a->nw_addr.nw_addr));
+ case OVS_ACTION_ATTR_SET_NW_SRC:
+ ip = nl_attr_get_be32(a);
+ ds_put_format(ds, "set_nw_src("IP_FMT")", IP_ARGS(&ip));
break;
- case ODPAT_SET_NW_DST:
- ds_put_format(ds, "set_nw_dst("IP_FMT")",
- IP_ARGS(&a->nw_addr.nw_addr));
+ case OVS_ACTION_ATTR_SET_NW_DST:
+ ip = nl_attr_get_be32(a);
+ ds_put_format(ds, "set_nw_dst("IP_FMT")", IP_ARGS(&ip));
break;
- case ODPAT_SET_NW_TOS:
- ds_put_format(ds, "set_nw_tos(%"PRIu8")", a->nw_tos.nw_tos);
+ case OVS_ACTION_ATTR_SET_NW_TOS:
+ ds_put_format(ds, "set_nw_tos(%"PRIu8")", nl_attr_get_u8(a));
break;
- case ODPAT_SET_TP_SRC:
- ds_put_format(ds, "set_tp_src(%"PRIu16")", ntohs(a->tp_port.tp_port));
+ case OVS_ACTION_ATTR_SET_TP_SRC:
+ ds_put_format(ds, "set_tp_src(%"PRIu16")", ntohs(nl_attr_get_be16(a)));
break;
- case ODPAT_SET_TP_DST:
- ds_put_format(ds, "set_tp_dst(%"PRIu16")", ntohs(a->tp_port.tp_port));
+ case OVS_ACTION_ATTR_SET_TP_DST:
+ ds_put_format(ds, "set_tp_dst(%"PRIu16")", ntohs(nl_attr_get_be16(a)));
break;
- case ODPAT_SET_PRIORITY:
- ds_put_format(ds, "set_priority(0x%"PRIx32")", a->priority.priority);
+ case OVS_ACTION_ATTR_SET_PRIORITY:
+ ds_put_format(ds, "set_priority(%#"PRIx32")", nl_attr_get_u32(a));
break;
- case ODPAT_POP_PRIORITY:
+ case OVS_ACTION_ATTR_POP_PRIORITY:
ds_put_cstr(ds, "pop_priority");
break;
- case ODPAT_DROP_SPOOFED_ARP:
- ds_put_cstr(ds, "drop_spoofed_arp");
+ case OVS_ACTION_ATTR_SAMPLE:
+ format_odp_sample_action(ds, a);
break;
default:
- ds_put_format(ds, "***bad action 0x%"PRIx16"***", a->type);
+ format_generic_odp_action(ds, a);
break;
}
}
void
-format_odp_actions(struct ds *ds, const union odp_action *actions,
- size_t n_actions)
+format_odp_actions(struct ds *ds, const struct nlattr *actions,
+ size_t actions_len)
{
- size_t i;
- for (i = 0; i < n_actions; i++) {
- if (i) {
- ds_put_char(ds, ',');
+ if (actions_len) {
+ const struct nlattr *a;
+ unsigned int left;
+
+ NL_ATTR_FOR_EACH (a, left, actions, actions_len) {
+ if (a != actions) {
+ ds_put_char(ds, ',');
+ }
+ format_odp_action(ds, a);
}
- format_odp_action(ds, &actions[i]);
- }
- if (!n_actions) {
+ if (left) {
+ if (left == actions_len) {
+ ds_put_cstr(ds, "<empty>");
+ }
+ ds_put_format(ds, ",***%u leftover bytes***", left);
+ }
+ } else {
ds_put_cstr(ds, "drop");
}
}
+\f
+/* Returns the correct length of the payload for a flow key attribute of the
+ * specified 'type', or -1 if 'type' is unknown. */
+static int
+odp_flow_key_attr_len(uint16_t type)
+{
+ if (type > OVS_KEY_ATTR_MAX) {
+ return -1;
+ }
-void
-format_odp_flow_stats(struct ds *ds, const struct odp_flow_stats *s)
+ switch ((enum ovs_key_type) type) {
+ case OVS_KEY_ATTR_TUN_ID: return 8;
+ case OVS_KEY_ATTR_IN_PORT: return 4;
+ case OVS_KEY_ATTR_ETHERNET: return sizeof(struct ovs_key_ethernet);
+ case OVS_KEY_ATTR_8021Q: return sizeof(struct ovs_key_8021q);
+ case OVS_KEY_ATTR_ETHERTYPE: return 2;
+ case OVS_KEY_ATTR_IPV4: return sizeof(struct ovs_key_ipv4);
+ case OVS_KEY_ATTR_IPV6: return sizeof(struct ovs_key_ipv6);
+ case OVS_KEY_ATTR_TCP: return sizeof(struct ovs_key_tcp);
+ case OVS_KEY_ATTR_UDP: return sizeof(struct ovs_key_udp);
+ case OVS_KEY_ATTR_ICMP: return sizeof(struct ovs_key_icmp);
+ case OVS_KEY_ATTR_ICMPV6: return sizeof(struct ovs_key_icmpv6);
+ case OVS_KEY_ATTR_ARP: return sizeof(struct ovs_key_arp);
+ case OVS_KEY_ATTR_ND: return sizeof(struct ovs_key_nd);
+
+ case OVS_KEY_ATTR_UNSPEC:
+ case __OVS_KEY_ATTR_MAX:
+ return -1;
+ }
+
+ return -1;
+}
+
+
+static void
+format_generic_odp_key(const struct nlattr *a, struct ds *ds)
{
- ds_put_format(ds, "packets:%llu, bytes:%llu, used:",
- (unsigned long long int) s->n_packets,
- (unsigned long long int) s->n_bytes);
- if (s->used_sec) {
- long long int used = s->used_sec * 1000 + s->used_nsec / 1000000;
- ds_put_format(ds, "%.3fs", (time_msec() - used) / 1000.0);
- } else {
- ds_put_format(ds, "never");
+ size_t len = nl_attr_get_size(a);
+
+ ds_put_format(ds, "key%"PRId16, nl_attr_type(a));
+ if (len) {
+ const uint8_t *unspec;
+ unsigned int i;
+
+ unspec = nl_attr_get(a);
+ for (i = 0; i < len; i++) {
+ ds_put_char(ds, i ? ' ': '(');
+ ds_put_format(ds, "%02x", unspec[i]);
+ }
+ ds_put_char(ds, ')');
}
}
-void
-format_odp_flow(struct ds *ds, const struct odp_flow *f)
+static void
+format_odp_key_attr(const struct nlattr *a, struct ds *ds)
{
- format_odp_flow_key(ds, &f->key);
- ds_put_cstr(ds, ", ");
- format_odp_flow_stats(ds, &f->stats);
- ds_put_cstr(ds, ", actions:");
- format_odp_actions(ds, f->actions, f->n_actions);
+ const struct ovs_key_ethernet *eth_key;
+ const struct ovs_key_8021q *q_key;
+ const struct ovs_key_ipv4 *ipv4_key;
+ const struct ovs_key_ipv6 *ipv6_key;
+ const struct ovs_key_tcp *tcp_key;
+ const struct ovs_key_udp *udp_key;
+ const struct ovs_key_icmp *icmp_key;
+ const struct ovs_key_icmpv6 *icmpv6_key;
+ const struct ovs_key_arp *arp_key;
+ const struct ovs_key_nd *nd_key;
+
+ if (nl_attr_get_size(a) != odp_flow_key_attr_len(nl_attr_type(a))) {
+ ds_put_format(ds, "bad length %zu, expected %d for: ",
+ nl_attr_get_size(a),
+ odp_flow_key_attr_len(nl_attr_type(a)));
+ format_generic_odp_key(a, ds);
+ return;
+ }
+
+ switch (nl_attr_type(a)) {
+ case OVS_KEY_ATTR_TUN_ID:
+ ds_put_format(ds, "tun_id(%#"PRIx64")", ntohll(nl_attr_get_be64(a)));
+ break;
+
+ case OVS_KEY_ATTR_IN_PORT:
+ ds_put_format(ds, "in_port(%"PRIu32")", nl_attr_get_u32(a));
+ break;
+
+ case OVS_KEY_ATTR_ETHERNET:
+ eth_key = nl_attr_get(a);
+ ds_put_format(ds, "eth(src="ETH_ADDR_FMT",dst="ETH_ADDR_FMT")",
+ ETH_ADDR_ARGS(eth_key->eth_src),
+ ETH_ADDR_ARGS(eth_key->eth_dst));
+ break;
+
+ case OVS_KEY_ATTR_8021Q:
+ q_key = nl_attr_get(a);
+ ds_put_cstr(ds, "vlan(");
+ if (q_key->q_tpid != htons(ETH_TYPE_VLAN)) {
+ ds_put_format(ds, "tpid=0x%04"PRIx16",", ntohs(q_key->q_tpid));
+ }
+ ds_put_format(ds, "vid=%"PRIu16",pcp=%d)",
+ vlan_tci_to_vid(q_key->q_tci),
+ vlan_tci_to_pcp(q_key->q_tci));
+ break;
+
+ case OVS_KEY_ATTR_ETHERTYPE:
+ ds_put_format(ds, "eth_type(0x%04"PRIx16")",
+ ntohs(nl_attr_get_be16(a)));
+ break;
+
+ case OVS_KEY_ATTR_IPV4:
+ ipv4_key = nl_attr_get(a);
+ ds_put_format(ds, "ipv4(src="IP_FMT",dst="IP_FMT","
+ "proto=%"PRId8",tos=%"PRIu8")",
+ IP_ARGS(&ipv4_key->ipv4_src),
+ IP_ARGS(&ipv4_key->ipv4_dst),
+ ipv4_key->ipv4_proto, ipv4_key->ipv4_tos);
+ break;
+
+ case OVS_KEY_ATTR_IPV6: {
+ char src_str[INET6_ADDRSTRLEN];
+ char dst_str[INET6_ADDRSTRLEN];
+
+ ipv6_key = nl_attr_get(a);
+ inet_ntop(AF_INET6, ipv6_key->ipv6_src, src_str, sizeof src_str);
+ inet_ntop(AF_INET6, ipv6_key->ipv6_dst, dst_str, sizeof dst_str);
+
+ ds_put_format(ds, "ipv6(src=%s,dst=%s,proto=%"PRId8",tos=%"PRIu8")",
+ src_str, dst_str, ipv6_key->ipv6_proto,
+ ipv6_key->ipv6_tos);
+ break;
+ }
+
+ case OVS_KEY_ATTR_TCP:
+ tcp_key = nl_attr_get(a);
+ ds_put_format(ds, "tcp(src=%"PRIu16",dst=%"PRIu16")",
+ ntohs(tcp_key->tcp_src), ntohs(tcp_key->tcp_dst));
+ break;
+
+ case OVS_KEY_ATTR_UDP:
+ udp_key = nl_attr_get(a);
+ ds_put_format(ds, "udp(src=%"PRIu16",dst=%"PRIu16")",
+ ntohs(udp_key->udp_src), ntohs(udp_key->udp_dst));
+ break;
+
+ case OVS_KEY_ATTR_ICMP:
+ icmp_key = nl_attr_get(a);
+ ds_put_format(ds, "icmp(type=%"PRIu8",code=%"PRIu8")",
+ icmp_key->icmp_type, icmp_key->icmp_code);
+ break;
+
+ case OVS_KEY_ATTR_ICMPV6:
+ icmpv6_key = nl_attr_get(a);
+ ds_put_format(ds, "icmpv6(type=%"PRIu8",code=%"PRIu8")",
+ icmpv6_key->icmpv6_type, icmpv6_key->icmpv6_code);
+ break;
+
+ case OVS_KEY_ATTR_ARP:
+ arp_key = nl_attr_get(a);
+ ds_put_format(ds, "arp(sip="IP_FMT",tip="IP_FMT",op=%"PRIu16","
+ "sha="ETH_ADDR_FMT",tha="ETH_ADDR_FMT")",
+ IP_ARGS(&arp_key->arp_sip), IP_ARGS(&arp_key->arp_tip),
+ ntohs(arp_key->arp_op), ETH_ADDR_ARGS(arp_key->arp_sha),
+ ETH_ADDR_ARGS(arp_key->arp_tha));
+ break;
+
+ case OVS_KEY_ATTR_ND: {
+ char target[INET6_ADDRSTRLEN];
+
+ nd_key = nl_attr_get(a);
+ inet_ntop(AF_INET6, nd_key->nd_target, target, sizeof target);
+
+ ds_put_format(ds, "nd(target=%s", target);
+ if (!eth_addr_is_zero(nd_key->nd_sll)) {
+ ds_put_format(ds, ",sll="ETH_ADDR_FMT,
+ ETH_ADDR_ARGS(nd_key->nd_sll));
+ }
+ if (!eth_addr_is_zero(nd_key->nd_tll)) {
+ ds_put_format(ds, ",tll="ETH_ADDR_FMT,
+ ETH_ADDR_ARGS(nd_key->nd_tll));
+ }
+ ds_put_char(ds, ')');
+ break;
+ }
+
+ default:
+ format_generic_odp_key(a, ds);
+ break;
+ }
}
-\f
+
+/* Appends to 'ds' a string representation of the 'key_len' bytes of
+ * OVS_KEY_ATTR_* attributes in 'key'. */
void
-odp_flow_key_from_flow(struct odp_flow_key *key, const struct flow *flow)
+odp_flow_key_format(const struct nlattr *key, size_t key_len, struct ds *ds)
{
- key->tun_id = flow->tun_id;
- key->nw_src = flow->nw_src;
- key->nw_dst = flow->nw_dst;
- key->in_port = flow->in_port;
- if (flow->dl_vlan == htons(OFP_VLAN_NONE)) {
- key->dl_tci = htons(0);
+ if (key_len) {
+ const struct nlattr *a;
+ unsigned int left;
+
+ NL_ATTR_FOR_EACH (a, left, key, key_len) {
+ if (a != key) {
+ ds_put_char(ds, ',');
+ }
+ format_odp_key_attr(a, ds);
+ }
+ if (left) {
+ if (left == key_len) {
+ ds_put_cstr(ds, "<empty>");
+ }
+ ds_put_format(ds, ",***%u leftover bytes***", left);
+ }
} else {
- uint16_t vid = flow->dl_vlan & htons(VLAN_VID_MASK);
- uint16_t pcp = htons((flow->dl_vlan_pcp << VLAN_PCP_SHIFT)
- & VLAN_PCP_MASK);
- key->dl_tci = vid | pcp | htons(ODP_TCI_PRESENT);
- }
- key->dl_type = flow->dl_type;
- key->tp_src = flow->tp_src;
- key->tp_dst = flow->tp_dst;
- memcpy(key->dl_src, flow->dl_src, ETH_ADDR_LEN);
- memcpy(key->dl_dst, flow->dl_dst, ETH_ADDR_LEN);
- key->nw_proto = flow->nw_proto;
- key->nw_tos = flow->nw_tos;
+ ds_put_cstr(ds, "<empty>");
+ }
+}
+
+static int
+put_nd_key(int n, const char *nd_target_s,
+ const uint8_t *nd_sll, const uint8_t *nd_tll, struct ofpbuf *key)
+{
+ struct ovs_key_nd nd_key;
+
+ memset(&nd_key, 0, sizeof nd_key);
+ if (inet_pton(AF_INET6, nd_target_s, nd_key.nd_target) != 1) {
+ return -EINVAL;
+ }
+ if (nd_sll) {
+ memcpy(nd_key.nd_sll, nd_sll, ETH_ADDR_LEN);
+ }
+ if (nd_tll) {
+ memcpy(nd_key.nd_tll, nd_tll, ETH_ADDR_LEN);
+ }
+ nl_msg_put_unspec(key, OVS_KEY_ATTR_ND, &nd_key, sizeof nd_key);
+ return n;
+}
+
+static int
+parse_odp_key_attr(const char *s, struct ofpbuf *key)
+{
+ /* Many of the sscanf calls in this function use oversized destination
+ * fields because some sscanf() implementations truncate the range of %i
+ * directives, so that e.g. "%"SCNi16 interprets input of "0xfedc" as a
+ * value of 0x7fff. The other alternatives are to allow only a single
+ * radix (e.g. decimal or hexadecimal) or to write more sophisticated
+ * parsers.
+ *
+ * The tun_id parser has to use an alternative approach because there is no
+ * type larger than 64 bits. */
+
+ {
+ char tun_id_s[32];
+ int n = -1;
+
+ if (sscanf(s, "tun_id(%31[x0123456789abcdefABCDEF])%n",
+ tun_id_s, &n) > 0 && n > 0) {
+ uint64_t tun_id = strtoull(tun_id_s, NULL, 0);
+ nl_msg_put_be64(key, OVS_KEY_ATTR_TUN_ID, htonll(tun_id));
+ return n;
+ }
+ }
+
+ {
+ unsigned long long int in_port;
+ int n = -1;
+
+ if (sscanf(s, "in_port(%lli)%n", &in_port, &n) > 0 && n > 0) {
+ nl_msg_put_u32(key, OVS_KEY_ATTR_IN_PORT, in_port);
+ return n;
+ }
+ }
+
+ {
+ struct ovs_key_ethernet eth_key;
+ int n = -1;
+
+ if (sscanf(s,
+ "eth(src="ETH_ADDR_SCAN_FMT",dst="ETH_ADDR_SCAN_FMT")%n",
+ ETH_ADDR_SCAN_ARGS(eth_key.eth_src),
+ ETH_ADDR_SCAN_ARGS(eth_key.eth_dst), &n) > 0 && n > 0) {
+ nl_msg_put_unspec(key, OVS_KEY_ATTR_ETHERNET,
+ ð_key, sizeof eth_key);
+ return n;
+ }
+ }
+
+ {
+ uint16_t tpid = ETH_TYPE_VLAN;
+ uint16_t vid;
+ int pcp;
+ int n = -1;
+
+ if ((sscanf(s, "vlan(vid=%"SCNi16",pcp=%i)%n",
+ &vid, &pcp, &n) > 0 && n > 0) ||
+ (sscanf(s, "vlan(tpid=%"SCNi16",vid=%"SCNi16",pcp=%i)%n",
+ &tpid, &vid, &pcp, &n) > 0 && n > 0)) {
+ struct ovs_key_8021q q_key;
+
+ q_key.q_tpid = htons(tpid);
+ q_key.q_tci = htons((vid << VLAN_VID_SHIFT) |
+ (pcp << VLAN_PCP_SHIFT));
+ nl_msg_put_unspec(key, OVS_KEY_ATTR_8021Q, &q_key, sizeof q_key);
+ return n;
+ }
+ }
+
+ {
+ int eth_type;
+ int n = -1;
+
+ if (sscanf(s, "eth_type(%i)%n", ð_type, &n) > 0 && n > 0) {
+ nl_msg_put_be16(key, OVS_KEY_ATTR_ETHERTYPE, htons(eth_type));
+ return n;
+ }
+ }
+
+ {
+ ovs_be32 ipv4_src;
+ ovs_be32 ipv4_dst;
+ int ipv4_proto;
+ int ipv4_tos;
+ int n = -1;
+
+ if (sscanf(s, "ipv4(src="IP_SCAN_FMT",dst="IP_SCAN_FMT","
+ "proto=%i,tos=%i)%n",
+ IP_SCAN_ARGS(&ipv4_src),
+ IP_SCAN_ARGS(&ipv4_dst), &ipv4_proto, &ipv4_tos, &n) > 0
+ && n > 0) {
+ struct ovs_key_ipv4 ipv4_key;
+
+ memset(&ipv4_key, 0, sizeof ipv4_key);
+ ipv4_key.ipv4_src = ipv4_src;
+ ipv4_key.ipv4_dst = ipv4_dst;
+ ipv4_key.ipv4_proto = ipv4_proto;
+ ipv4_key.ipv4_tos = ipv4_tos;
+ nl_msg_put_unspec(key, OVS_KEY_ATTR_IPV4,
+ &ipv4_key, sizeof ipv4_key);
+ return n;
+ }
+ }
+
+ {
+ char ipv6_src_s[IPV6_SCAN_LEN + 1];
+ char ipv6_dst_s[IPV6_SCAN_LEN + 1];
+ int ipv6_proto;
+ int ipv6_tos;
+ int n = -1;
+
+ if (sscanf(s, "ipv6(src="IPV6_SCAN_FMT",dst="IPV6_SCAN_FMT","
+ "proto=%i,tos=%i)%n",
+ ipv6_src_s, ipv6_dst_s,
+ &ipv6_proto, &ipv6_tos, &n) > 0 && n > 0) {
+ struct ovs_key_ipv6 ipv6_key;
+
+ memset(&ipv6_key, 0, sizeof ipv6_key);
+ if (inet_pton(AF_INET6, ipv6_src_s, &ipv6_key.ipv6_src) != 1 ||
+ inet_pton(AF_INET6, ipv6_dst_s, &ipv6_key.ipv6_dst) != 1) {
+ return -EINVAL;
+ }
+ ipv6_key.ipv6_proto = ipv6_proto;
+ ipv6_key.ipv6_tos = ipv6_tos;
+ nl_msg_put_unspec(key, OVS_KEY_ATTR_IPV6,
+ &ipv6_key, sizeof ipv6_key);
+ return n;
+ }
+ }
+
+ {
+ int tcp_src;
+ int tcp_dst;
+ int n = -1;
+
+ if (sscanf(s, "tcp(src=%i,dst=%i)%n",&tcp_src, &tcp_dst, &n) > 0
+ && n > 0) {
+ struct ovs_key_tcp tcp_key;
+
+ tcp_key.tcp_src = htons(tcp_src);
+ tcp_key.tcp_dst = htons(tcp_dst);
+ nl_msg_put_unspec(key, OVS_KEY_ATTR_TCP, &tcp_key, sizeof tcp_key);
+ return n;
+ }
+ }
+
+ {
+ int udp_src;
+ int udp_dst;
+ int n = -1;
+
+ if (sscanf(s, "udp(src=%i,dst=%i)%n", &udp_src, &udp_dst, &n) > 0
+ && n > 0) {
+ struct ovs_key_udp udp_key;
+
+ udp_key.udp_src = htons(udp_src);
+ udp_key.udp_dst = htons(udp_dst);
+ nl_msg_put_unspec(key, OVS_KEY_ATTR_UDP, &udp_key, sizeof udp_key);
+ return n;
+ }
+ }
+
+ {
+ int icmp_type;
+ int icmp_code;
+ int n = -1;
+
+ if (sscanf(s, "icmp(type=%i,code=%i)%n",
+ &icmp_type, &icmp_code, &n) > 0
+ && n > 0) {
+ struct ovs_key_icmp icmp_key;
+
+ icmp_key.icmp_type = icmp_type;
+ icmp_key.icmp_code = icmp_code;
+ nl_msg_put_unspec(key, OVS_KEY_ATTR_ICMP,
+ &icmp_key, sizeof icmp_key);
+ return n;
+ }
+ }
+
+ {
+ struct ovs_key_icmpv6 icmpv6_key;
+ int n = -1;
+
+ if (sscanf(s, "icmpv6(type=%"SCNi8",code=%"SCNi8")%n",
+ &icmpv6_key.icmpv6_type, &icmpv6_key.icmpv6_code,&n) > 0
+ && n > 0) {
+ nl_msg_put_unspec(key, OVS_KEY_ATTR_ICMPV6,
+ &icmpv6_key, sizeof icmpv6_key);
+ return n;
+ }
+ }
+
+ {
+ ovs_be32 arp_sip;
+ ovs_be32 arp_tip;
+ int arp_op;
+ uint8_t arp_sha[ETH_ADDR_LEN];
+ uint8_t arp_tha[ETH_ADDR_LEN];
+ int n = -1;
+
+ if (sscanf(s, "arp(sip="IP_SCAN_FMT",tip="IP_SCAN_FMT","
+ "op=%i,sha="ETH_ADDR_SCAN_FMT",tha="ETH_ADDR_SCAN_FMT")%n",
+ IP_SCAN_ARGS(&arp_sip),
+ IP_SCAN_ARGS(&arp_tip),
+ &arp_op,
+ ETH_ADDR_SCAN_ARGS(arp_sha),
+ ETH_ADDR_SCAN_ARGS(arp_tha), &n) > 0 && n > 0) {
+ struct ovs_key_arp arp_key;
+
+ memset(&arp_key, 0, sizeof arp_key);
+ arp_key.arp_sip = arp_sip;
+ arp_key.arp_tip = arp_tip;
+ arp_key.arp_op = htons(arp_op);
+ memcpy(arp_key.arp_sha, arp_sha, ETH_ADDR_LEN);
+ memcpy(arp_key.arp_tha, arp_tha, ETH_ADDR_LEN);
+ nl_msg_put_unspec(key, OVS_KEY_ATTR_ARP, &arp_key, sizeof arp_key);
+ return n;
+ }
+ }
+
+ {
+ char nd_target_s[IPV6_SCAN_LEN + 1];
+ uint8_t nd_sll[ETH_ADDR_LEN];
+ uint8_t nd_tll[ETH_ADDR_LEN];
+ int n = -1;
+
+ if (sscanf(s, "nd(target="IPV6_SCAN_FMT")%n",
+ nd_target_s, &n) > 0 && n > 0) {
+ return put_nd_key(n, nd_target_s, NULL, NULL, key);
+ }
+ if (sscanf(s, "nd(target="IPV6_SCAN_FMT",sll="ETH_ADDR_SCAN_FMT")%n",
+ nd_target_s, ETH_ADDR_SCAN_ARGS(nd_sll), &n) > 0
+ && n > 0) {
+ return put_nd_key(n, nd_target_s, nd_sll, NULL, key);
+ }
+ if (sscanf(s, "nd(target="IPV6_SCAN_FMT",tll="ETH_ADDR_SCAN_FMT")%n",
+ nd_target_s, ETH_ADDR_SCAN_ARGS(nd_tll), &n) > 0
+ && n > 0) {
+ return put_nd_key(n, nd_target_s, NULL, nd_tll, key);
+ }
+ if (sscanf(s, "nd(target="IPV6_SCAN_FMT",sll="ETH_ADDR_SCAN_FMT","
+ "tll="ETH_ADDR_SCAN_FMT")%n",
+ nd_target_s, ETH_ADDR_SCAN_ARGS(nd_sll),
+ ETH_ADDR_SCAN_ARGS(nd_tll), &n) > 0
+ && n > 0) {
+ return put_nd_key(n, nd_target_s, nd_sll, nd_tll, key);
+ }
+ }
+
+ return -EINVAL;
+}
+
+/* Parses the string representation of a datapath flow key, in the
+ * format output by odp_flow_key_format(). Returns 0 if successful,
+ * otherwise a positive errno value. On success, the flow key is
+ * appended to 'key' as a series of Netlink attributes. On failure, no
+ * data is appended to 'key'. Either way, 'key''s data might be
+ * reallocated.
+ *
+ * On success, the attributes appended to 'key' are individually syntactically
+ * valid, but they may not be valid as a sequence. 'key' might, for example,
+ * be missing an "in_port" key, have duplicated keys, or have keys in the wrong
+ * order. odp_flow_key_to_flow() will detect those errors. */
+int
+odp_flow_key_from_string(const char *s, struct ofpbuf *key)
+{
+ const size_t old_size = key->size;
+ for (;;) {
+ int retval;
+
+ s += strspn(s, ", \t\r\n");
+ if (!*s) {
+ return 0;
+ }
+
+ retval = parse_odp_key_attr(s, key);
+ if (retval < 0) {
+ key->size = old_size;
+ return -retval;
+ }
+ s += retval;
+ }
+
+ return 0;
}
+/* Appends a representation of 'flow' as OVS_KEY_ATTR_* attributes to 'buf'. */
void
-odp_flow_key_to_flow(const struct odp_flow_key *key, struct flow *flow)
+odp_flow_key_from_flow(struct ofpbuf *buf, const struct flow *flow)
{
- memset(flow->regs, 0, sizeof flow->regs);
- flow->tun_id = key->tun_id;
- flow->nw_src = key->nw_src;
- flow->nw_dst = key->nw_dst;
- flow->in_port = key->in_port;
- if (key->dl_tci) {
- flow->dl_vlan = htons(vlan_tci_to_vid(key->dl_tci));
- flow->dl_vlan_pcp = vlan_tci_to_pcp(key->dl_tci);
- } else {
- flow->dl_vlan = htons(OFP_VLAN_NONE);
- flow->dl_vlan_pcp = 0;
- }
- flow->dl_type = key->dl_type;
- flow->tp_src = key->tp_src;
- flow->tp_dst = key->tp_dst;
- memcpy(flow->dl_src, key->dl_src, ETH_ADDR_LEN);
- memcpy(flow->dl_dst, key->dl_dst, ETH_ADDR_LEN);
- flow->nw_proto = key->nw_proto;
- flow->nw_tos = key->nw_tos;
+ struct ovs_key_ethernet *eth_key;
+
+ if (flow->tun_id != htonll(0)) {
+ nl_msg_put_be64(buf, OVS_KEY_ATTR_TUN_ID, flow->tun_id);
+ }
+
+ if (flow->in_port != OFPP_NONE) {
+ nl_msg_put_u32(buf, OVS_KEY_ATTR_IN_PORT,
+ ofp_port_to_odp_port(flow->in_port));
+ }
+
+ eth_key = nl_msg_put_unspec_uninit(buf, OVS_KEY_ATTR_ETHERNET,
+ sizeof *eth_key);
+ memcpy(eth_key->eth_src, flow->dl_src, ETH_ADDR_LEN);
+ memcpy(eth_key->eth_dst, flow->dl_dst, ETH_ADDR_LEN);
+
+ if (flow->vlan_tci != htons(0)) {
+ struct ovs_key_8021q *q_key;
+
+ q_key = nl_msg_put_unspec_uninit(buf, OVS_KEY_ATTR_8021Q,
+ sizeof *q_key);
+ q_key->q_tpid = htons(ETH_TYPE_VLAN);
+ q_key->q_tci = flow->vlan_tci & ~htons(VLAN_CFI);
+ }
+
+ if (ntohs(flow->dl_type) < ETH_TYPE_MIN) {
+ return;
+ }
+
+ nl_msg_put_be16(buf, OVS_KEY_ATTR_ETHERTYPE, flow->dl_type);
+
+ if (flow->dl_type == htons(ETH_TYPE_IP)) {
+ struct ovs_key_ipv4 *ipv4_key;
+
+ ipv4_key = nl_msg_put_unspec_uninit(buf, OVS_KEY_ATTR_IPV4,
+ sizeof *ipv4_key);
+ memset(ipv4_key, 0, sizeof *ipv4_key);
+ ipv4_key->ipv4_src = flow->nw_src;
+ ipv4_key->ipv4_dst = flow->nw_dst;
+ ipv4_key->ipv4_proto = flow->nw_proto;
+ ipv4_key->ipv4_tos = flow->nw_tos;
+ } else if (flow->dl_type == htons(ETH_TYPE_IPV6)) {
+ struct ovs_key_ipv6 *ipv6_key;
+
+ ipv6_key = nl_msg_put_unspec_uninit(buf, OVS_KEY_ATTR_IPV6,
+ sizeof *ipv6_key);
+ memset(ipv6_key, 0, sizeof *ipv6_key);
+ memcpy(ipv6_key->ipv6_src, &flow->ipv6_src, sizeof ipv6_key->ipv6_src);
+ memcpy(ipv6_key->ipv6_dst, &flow->ipv6_dst, sizeof ipv6_key->ipv6_dst);
+ ipv6_key->ipv6_proto = flow->nw_proto;
+ ipv6_key->ipv6_tos = flow->nw_tos;
+ } else if (flow->dl_type == htons(ETH_TYPE_ARP)) {
+ struct ovs_key_arp *arp_key;
+
+ arp_key = nl_msg_put_unspec_uninit(buf, OVS_KEY_ATTR_ARP,
+ sizeof *arp_key);
+ memset(arp_key, 0, sizeof *arp_key);
+ arp_key->arp_sip = flow->nw_src;
+ arp_key->arp_tip = flow->nw_dst;
+ arp_key->arp_op = htons(flow->nw_proto);
+ memcpy(arp_key->arp_sha, flow->arp_sha, ETH_ADDR_LEN);
+ memcpy(arp_key->arp_tha, flow->arp_tha, ETH_ADDR_LEN);
+ }
+
+ if (flow->dl_type == htons(ETH_TYPE_IP)
+ || flow->dl_type == htons(ETH_TYPE_IPV6)) {
+
+ if (flow->nw_proto == IPPROTO_TCP) {
+ struct ovs_key_tcp *tcp_key;
+
+ tcp_key = nl_msg_put_unspec_uninit(buf, OVS_KEY_ATTR_TCP,
+ sizeof *tcp_key);
+ tcp_key->tcp_src = flow->tp_src;
+ tcp_key->tcp_dst = flow->tp_dst;
+ } else if (flow->nw_proto == IPPROTO_UDP) {
+ struct ovs_key_udp *udp_key;
+
+ udp_key = nl_msg_put_unspec_uninit(buf, OVS_KEY_ATTR_UDP,
+ sizeof *udp_key);
+ udp_key->udp_src = flow->tp_src;
+ udp_key->udp_dst = flow->tp_dst;
+ } else if (flow->dl_type == htons(ETH_TYPE_IP)
+ && flow->nw_proto == IPPROTO_ICMP) {
+ struct ovs_key_icmp *icmp_key;
+
+ icmp_key = nl_msg_put_unspec_uninit(buf, OVS_KEY_ATTR_ICMP,
+ sizeof *icmp_key);
+ icmp_key->icmp_type = ntohs(flow->tp_src);
+ icmp_key->icmp_code = ntohs(flow->tp_dst);
+ } else if (flow->dl_type == htons(ETH_TYPE_IPV6)
+ && flow->nw_proto == IPPROTO_ICMPV6) {
+ struct ovs_key_icmpv6 *icmpv6_key;
+
+ icmpv6_key = nl_msg_put_unspec_uninit(buf, OVS_KEY_ATTR_ICMPV6,
+ sizeof *icmpv6_key);
+ icmpv6_key->icmpv6_type = ntohs(flow->tp_src);
+ icmpv6_key->icmpv6_code = ntohs(flow->tp_dst);
+
+ if (icmpv6_key->icmpv6_type == ND_NEIGHBOR_SOLICIT
+ || icmpv6_key->icmpv6_type == ND_NEIGHBOR_ADVERT) {
+ struct ovs_key_nd *nd_key;
+
+ nd_key = nl_msg_put_unspec_uninit(buf, OVS_KEY_ATTR_ND,
+ sizeof *nd_key);
+ memcpy(nd_key->nd_target, &flow->nd_target,
+ sizeof nd_key->nd_target);
+ memcpy(nd_key->nd_sll, flow->arp_sha, ETH_ADDR_LEN);
+ memcpy(nd_key->nd_tll, flow->arp_tha, ETH_ADDR_LEN);
+ }
+ }
+ }
+}
+
+/* Converts the 'key_len' bytes of OVS_KEY_ATTR_* attributes in 'key' to a flow
+ * structure in 'flow'. Returns 0 if successful, otherwise EINVAL. */
+int
+odp_flow_key_to_flow(const struct nlattr *key, size_t key_len,
+ struct flow *flow)
+{
+ const struct nlattr *nla;
+ enum ovs_key_type prev_type;
+ size_t left;
+
+ memset(flow, 0, sizeof *flow);
+ flow->dl_type = htons(FLOW_DL_TYPE_NONE);
+ flow->in_port = OFPP_NONE;
+
+ prev_type = OVS_KEY_ATTR_UNSPEC;
+ NL_ATTR_FOR_EACH (nla, left, key, key_len) {
+ const struct ovs_key_ethernet *eth_key;
+ const struct ovs_key_8021q *q_key;
+ const struct ovs_key_ipv4 *ipv4_key;
+ const struct ovs_key_ipv6 *ipv6_key;
+ const struct ovs_key_tcp *tcp_key;
+ const struct ovs_key_udp *udp_key;
+ const struct ovs_key_icmp *icmp_key;
+ const struct ovs_key_icmpv6 *icmpv6_key;
+ const struct ovs_key_arp *arp_key;
+ const struct ovs_key_nd *nd_key;
+
+ uint16_t type = nl_attr_type(nla);
+ int len = odp_flow_key_attr_len(type);
+
+ if (nl_attr_get_size(nla) != len && len != -1) {
+ return EINVAL;
+ }
+
+#define TRANSITION(PREV_TYPE, TYPE) (((PREV_TYPE) << 16) | (TYPE))
+ switch (TRANSITION(prev_type, type)) {
+ case TRANSITION(OVS_KEY_ATTR_UNSPEC, OVS_KEY_ATTR_TUN_ID):
+ flow->tun_id = nl_attr_get_be64(nla);
+ break;
+
+ case TRANSITION(OVS_KEY_ATTR_UNSPEC, OVS_KEY_ATTR_IN_PORT):
+ case TRANSITION(OVS_KEY_ATTR_TUN_ID, OVS_KEY_ATTR_IN_PORT):
+ if (nl_attr_get_u32(nla) >= UINT16_MAX) {
+ return EINVAL;
+ }
+ flow->in_port = odp_port_to_ofp_port(nl_attr_get_u32(nla));
+ break;
+
+ case TRANSITION(OVS_KEY_ATTR_UNSPEC, OVS_KEY_ATTR_ETHERNET):
+ case TRANSITION(OVS_KEY_ATTR_TUN_ID, OVS_KEY_ATTR_ETHERNET):
+ case TRANSITION(OVS_KEY_ATTR_IN_PORT, OVS_KEY_ATTR_ETHERNET):
+ eth_key = nl_attr_get(nla);
+ memcpy(flow->dl_src, eth_key->eth_src, ETH_ADDR_LEN);
+ memcpy(flow->dl_dst, eth_key->eth_dst, ETH_ADDR_LEN);
+ break;
+
+ case TRANSITION(OVS_KEY_ATTR_ETHERNET, OVS_KEY_ATTR_8021Q):
+ q_key = nl_attr_get(nla);
+ if (q_key->q_tpid != htons(ETH_TYPE_VLAN)) {
+ /* Only standard 0x8100 VLANs currently supported. */
+ return EINVAL;
+ }
+ if (q_key->q_tci & htons(VLAN_CFI)) {
+ return EINVAL;
+ }
+ flow->vlan_tci = q_key->q_tci | htons(VLAN_CFI);
+ break;
+
+ case TRANSITION(OVS_KEY_ATTR_8021Q, OVS_KEY_ATTR_ETHERTYPE):
+ case TRANSITION(OVS_KEY_ATTR_ETHERNET, OVS_KEY_ATTR_ETHERTYPE):
+ flow->dl_type = nl_attr_get_be16(nla);
+ if (ntohs(flow->dl_type) < 1536) {
+ return EINVAL;
+ }
+ break;
+
+ case TRANSITION(OVS_KEY_ATTR_ETHERTYPE, OVS_KEY_ATTR_IPV4):
+ if (flow->dl_type != htons(ETH_TYPE_IP)) {
+ return EINVAL;
+ }
+ ipv4_key = nl_attr_get(nla);
+ flow->nw_src = ipv4_key->ipv4_src;
+ flow->nw_dst = ipv4_key->ipv4_dst;
+ flow->nw_proto = ipv4_key->ipv4_proto;
+ flow->nw_tos = ipv4_key->ipv4_tos;
+ if (flow->nw_tos & IP_ECN_MASK) {
+ return EINVAL;
+ }
+ break;
+
+ case TRANSITION(OVS_KEY_ATTR_ETHERTYPE, OVS_KEY_ATTR_IPV6):
+ if (flow->dl_type != htons(ETH_TYPE_IPV6)) {
+ return EINVAL;
+ }
+ ipv6_key = nl_attr_get(nla);
+ memcpy(&flow->ipv6_src, ipv6_key->ipv6_src, sizeof flow->ipv6_src);
+ memcpy(&flow->ipv6_dst, ipv6_key->ipv6_dst, sizeof flow->ipv6_dst);
+ flow->nw_proto = ipv6_key->ipv6_proto;
+ flow->nw_tos = ipv6_key->ipv6_tos;
+ if (flow->nw_tos & IP_ECN_MASK) {
+ return EINVAL;
+ }
+ break;
+
+ case TRANSITION(OVS_KEY_ATTR_IPV4, OVS_KEY_ATTR_TCP):
+ case TRANSITION(OVS_KEY_ATTR_IPV6, OVS_KEY_ATTR_TCP):
+ if (flow->nw_proto != IPPROTO_TCP) {
+ return EINVAL;
+ }
+ tcp_key = nl_attr_get(nla);
+ flow->tp_src = tcp_key->tcp_src;
+ flow->tp_dst = tcp_key->tcp_dst;
+ break;
+
+ case TRANSITION(OVS_KEY_ATTR_IPV4, OVS_KEY_ATTR_UDP):
+ case TRANSITION(OVS_KEY_ATTR_IPV6, OVS_KEY_ATTR_UDP):
+ if (flow->nw_proto != IPPROTO_UDP) {
+ return EINVAL;
+ }
+ udp_key = nl_attr_get(nla);
+ flow->tp_src = udp_key->udp_src;
+ flow->tp_dst = udp_key->udp_dst;
+ break;
+
+ case TRANSITION(OVS_KEY_ATTR_IPV4, OVS_KEY_ATTR_ICMP):
+ if (flow->nw_proto != IPPROTO_ICMP) {
+ return EINVAL;
+ }
+ icmp_key = nl_attr_get(nla);
+ flow->tp_src = htons(icmp_key->icmp_type);
+ flow->tp_dst = htons(icmp_key->icmp_code);
+ break;
+
+ case TRANSITION(OVS_KEY_ATTR_IPV6, OVS_KEY_ATTR_ICMPV6):
+ if (flow->nw_proto != IPPROTO_ICMPV6) {
+ return EINVAL;
+ }
+ icmpv6_key = nl_attr_get(nla);
+ flow->tp_src = htons(icmpv6_key->icmpv6_type);
+ flow->tp_dst = htons(icmpv6_key->icmpv6_code);
+ break;
+
+ case TRANSITION(OVS_KEY_ATTR_ETHERTYPE, OVS_KEY_ATTR_ARP):
+ if (flow->dl_type != htons(ETH_TYPE_ARP)) {
+ return EINVAL;
+ }
+ arp_key = nl_attr_get(nla);
+ flow->nw_src = arp_key->arp_sip;
+ flow->nw_dst = arp_key->arp_tip;
+ if (arp_key->arp_op & htons(0xff00)) {
+ return EINVAL;
+ }
+ flow->nw_proto = ntohs(arp_key->arp_op);
+ memcpy(flow->arp_sha, arp_key->arp_sha, ETH_ADDR_LEN);
+ memcpy(flow->arp_tha, arp_key->arp_tha, ETH_ADDR_LEN);
+ break;
+
+ case TRANSITION(OVS_KEY_ATTR_ICMPV6, OVS_KEY_ATTR_ND):
+ if (flow->tp_src != htons(ND_NEIGHBOR_SOLICIT)
+ && flow->tp_src != htons(ND_NEIGHBOR_ADVERT)) {
+ return EINVAL;
+ }
+ nd_key = nl_attr_get(nla);
+ memcpy(&flow->nd_target, nd_key->nd_target, sizeof flow->nd_target);
+ memcpy(flow->arp_sha, nd_key->nd_sll, ETH_ADDR_LEN);
+ memcpy(flow->arp_tha, nd_key->nd_tll, ETH_ADDR_LEN);
+ break;
+
+ default:
+ return EINVAL;
+ }
+
+ prev_type = type;
+ }
+ if (left) {
+ return EINVAL;
+ }
+
+ switch (prev_type) {
+ case OVS_KEY_ATTR_UNSPEC:
+ return EINVAL;
+
+ case OVS_KEY_ATTR_TUN_ID:
+ case OVS_KEY_ATTR_IN_PORT:
+ return EINVAL;
+
+ case OVS_KEY_ATTR_ETHERNET:
+ case OVS_KEY_ATTR_8021Q:
+ return 0;
+
+ case OVS_KEY_ATTR_ETHERTYPE:
+ if (flow->dl_type == htons(ETH_TYPE_IP)
+ || flow->dl_type == htons(ETH_TYPE_IPV6)
+ || flow->dl_type == htons(ETH_TYPE_ARP)) {
+ return EINVAL;
+ }
+ return 0;
+
+ case OVS_KEY_ATTR_IPV4:
+ if (flow->nw_proto == IPPROTO_TCP
+ || flow->nw_proto == IPPROTO_UDP
+ || flow->nw_proto == IPPROTO_ICMP) {
+ return EINVAL;
+ }
+ return 0;
+
+ case OVS_KEY_ATTR_IPV6:
+ if (flow->nw_proto == IPPROTO_TCP
+ || flow->nw_proto == IPPROTO_UDP
+ || flow->nw_proto == IPPROTO_ICMPV6) {
+ return EINVAL;
+ }
+ return 0;
+
+ case OVS_KEY_ATTR_ICMPV6:
+ if (flow->tp_src == htons(ND_NEIGHBOR_SOLICIT)
+ || flow->tp_src == htons(ND_NEIGHBOR_ADVERT)) {
+ return EINVAL;
+ }
+ return 0;
+
+ case OVS_KEY_ATTR_TCP:
+ case OVS_KEY_ATTR_UDP:
+ case OVS_KEY_ATTR_ICMP:
+ case OVS_KEY_ATTR_ARP:
+ case OVS_KEY_ATTR_ND:
+ return 0;
+
+ case __OVS_KEY_ATTR_MAX:
+ default:
+ NOT_REACHED();
+ }
}