/*
- * 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 "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)
+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 > ODP_ACTION_ATTR_MAX) {
+ return -1;
+ }
+
+ switch ((enum odp_action_type) type) {
+ case ODP_ACTION_ATTR_OUTPUT: return 4;
+ case ODP_ACTION_ATTR_CONTROLLER: return 8;
+ case ODP_ACTION_ATTR_SET_DL_TCI: return 2;
+ case ODP_ACTION_ATTR_STRIP_VLAN: return 0;
+ case ODP_ACTION_ATTR_SET_DL_SRC: return ETH_ADDR_LEN;
+ case ODP_ACTION_ATTR_SET_DL_DST: return ETH_ADDR_LEN;
+ case ODP_ACTION_ATTR_SET_NW_SRC: return 4;
+ case ODP_ACTION_ATTR_SET_NW_DST: return 4;
+ case ODP_ACTION_ATTR_SET_NW_TOS: return 1;
+ case ODP_ACTION_ATTR_SET_TP_SRC: return 2;
+ case ODP_ACTION_ATTR_SET_TP_DST: return 2;
+ case ODP_ACTION_ATTR_SET_TUNNEL: return 8;
+ case ODP_ACTION_ATTR_SET_PRIORITY: return 4;
+ case ODP_ACTION_ATTR_POP_PRIORITY: return 0;
+ case ODP_ACTION_ATTR_DROP_SPOOFED_ARP: return 0;
+
+ case ODP_ACTION_ATTR_UNSPEC:
+ case __ODP_ACTION_ATTR_MAX:
+ return -1;
+ }
+
+ return -1;
+}
+
+static void
+format_generic_odp_action(struct ds *ds, const struct nlattr *a)
+{
+ 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, ')');
+ }
}
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);
- break;
- case ODPAT_OUTPUT_GROUP:
- ds_put_format(ds, "g%"PRIu16, a->output_group.group);
- break;
- case ODPAT_CONTROLLER:
- ds_put_format(ds, "ctl(%"PRIu32")", a->controller.arg);
+ const uint8_t *eth;
+ ovs_be32 ip;
+
+ if (nl_attr_get_size(a) != odp_action_len(nl_attr_type(a))) {
+ ds_put_format(ds, "bad length %zu, expected %d for: ",
+ nl_attr_get_size(a), odp_action_len(nl_attr_type(a)));
+ format_generic_odp_action(ds, a);
+ return;
+ }
+
+ switch (nl_attr_type(a)) {
+ case ODP_ACTION_ATTR_OUTPUT:
+ ds_put_format(ds, "%"PRIu16, nl_attr_get_u32(a));
break;
- case ODPAT_SET_TUNNEL:
- ds_put_format(ds, "set_tunnel(0x%08"PRIx32")", ntohl(a->tunnel.tun_id));
+ case ODP_ACTION_ATTR_CONTROLLER:
+ ds_put_format(ds, "ctl(%"PRIu64")", nl_attr_get_u64(a));
break;
- case ODPAT_SET_VLAN_VID:
- ds_put_format(ds, "set_vlan(%"PRIu16")", ntohs(a->vlan_vid.vlan_vid));
+ case ODP_ACTION_ATTR_SET_TUNNEL:
+ ds_put_format(ds, "set_tunnel(%#"PRIx64")",
+ ntohll(nl_attr_get_be64(a)));
break;
- case ODPAT_SET_VLAN_PCP:
- ds_put_format(ds, "set_vlan_pcp(%"PRIu8")", a->vlan_pcp.vlan_pcp);
+ case ODP_ACTION_ATTR_SET_DL_TCI:
+ ds_put_format(ds, "set_tci(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:
+ case ODP_ACTION_ATTR_STRIP_VLAN:
ds_put_format(ds, "strip_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 ODP_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 ODP_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 ODP_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 ODP_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 ODP_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 ODP_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 ODP_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 ODP_ACTION_ATTR_SET_PRIORITY:
+ ds_put_format(ds, "set_priority(%#"PRIx32")", nl_attr_get_u32(a));
break;
- case ODPAT_POP_PRIORITY:
+ case ODP_ACTION_ATTR_POP_PRIORITY:
ds_put_cstr(ds, "pop_priority");
break;
+ case ODP_ACTION_ATTR_DROP_SPOOFED_ARP:
+ ds_put_cstr(ds, "drop_spoofed_arp");
+ 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 > ODP_KEY_ATTR_MAX) {
+ return -1;
+ }
+
+ switch ((enum odp_key_type) type) {
+ case ODP_KEY_ATTR_TUN_ID: return 8;
+ case ODP_KEY_ATTR_IN_PORT: return 4;
+ case ODP_KEY_ATTR_ETHERNET: return sizeof(struct odp_key_ethernet);
+ case ODP_KEY_ATTR_8021Q: return sizeof(struct odp_key_8021q);
+ case ODP_KEY_ATTR_ETHERTYPE: return 2;
+ case ODP_KEY_ATTR_IPV4: return sizeof(struct odp_key_ipv4);
+ case ODP_KEY_ATTR_IPV6: return sizeof(struct odp_key_ipv6);
+ case ODP_KEY_ATTR_TCP: return sizeof(struct odp_key_tcp);
+ case ODP_KEY_ATTR_UDP: return sizeof(struct odp_key_udp);
+ case ODP_KEY_ATTR_ICMP: return sizeof(struct odp_key_icmp);
+ case ODP_KEY_ATTR_ICMPV6: return sizeof(struct odp_key_icmpv6);
+ case ODP_KEY_ATTR_ARP: return sizeof(struct odp_key_arp);
+ case ODP_KEY_ATTR_ND: return sizeof(struct odp_key_nd);
+
+ case ODP_KEY_ATTR_UNSPEC:
+ case __ODP_KEY_ATTR_MAX:
+ return -1;
+ }
+
+ return -1;
+}
+
+
+static void
+format_generic_odp_key(const struct nlattr *a, struct ds *ds)
+{
+ 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, ')');
+ }
+}
+
+static void
+format_odp_key_attr(const struct nlattr *a, struct ds *ds)
+{
+ const struct odp_key_ethernet *eth_key;
+ const struct odp_key_8021q *q_key;
+ const struct odp_key_ipv4 *ipv4_key;
+ const struct odp_key_ipv6 *ipv6_key;
+ const struct odp_key_tcp *tcp_key;
+ const struct odp_key_udp *udp_key;
+ const struct odp_key_icmp *icmp_key;
+ const struct odp_key_icmpv6 *icmpv6_key;
+ const struct odp_key_arp *arp_key;
+ const struct odp_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 ODP_KEY_ATTR_TUN_ID:
+ ds_put_format(ds, "tun_id(%#"PRIx64")", ntohll(nl_attr_get_be64(a)));
+ break;
+
+ case ODP_KEY_ATTR_IN_PORT:
+ ds_put_format(ds, "in_port(%"PRIu32")", nl_attr_get_u32(a));
+ break;
+
+ case ODP_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 ODP_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 ODP_KEY_ATTR_ETHERTYPE:
+ ds_put_format(ds, "eth_type(0x%04"PRIx16")",
+ ntohs(nl_attr_get_be16(a)));
+ break;
+
+ case ODP_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 ODP_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 ODP_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 ODP_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 ODP_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 ODP_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 ODP_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 ODP_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;
+ }
+}
+/* Appends to 'ds' a string representation of the 'key_len' bytes of
+ * ODP_KEY_ATTR_* attributes in 'key'. */
void
-format_odp_flow_stats(struct ds *ds, const struct odp_flow_stats *s)
+odp_flow_key_format(const struct nlattr *key, size_t key_len, 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);
+ 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 {
- ds_put_format(ds, "never");
+ ds_put_cstr(ds, "<empty>");
}
}
+/* Appends a representation of 'flow' as ODP_KEY_ATTR_* attributes to 'buf'. */
void
-format_odp_flow(struct ds *ds, const struct odp_flow *f)
+odp_flow_key_from_flow(struct ofpbuf *buf, const struct flow *flow)
{
- flow_format(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);
+ struct odp_key_ethernet *eth_key;
+
+ if (flow->tun_id != htonll(0)) {
+ nl_msg_put_be64(buf, ODP_KEY_ATTR_TUN_ID, flow->tun_id);
+ }
+
+ nl_msg_put_u32(buf, ODP_KEY_ATTR_IN_PORT, flow->in_port);
+
+ eth_key = nl_msg_put_unspec_uninit(buf, ODP_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 odp_key_8021q *q_key;
+
+ q_key = nl_msg_put_unspec_uninit(buf, ODP_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, ODP_KEY_ATTR_ETHERTYPE, flow->dl_type);
+
+ if (flow->dl_type == htons(ETH_TYPE_IP)) {
+ struct odp_key_ipv4 *ipv4_key;
+
+ ipv4_key = nl_msg_put_unspec_uninit(buf, ODP_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 odp_key_ipv6 *ipv6_key;
+
+ ipv6_key = nl_msg_put_unspec_uninit(buf, ODP_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 odp_key_arp *arp_key;
+
+ arp_key = nl_msg_put_unspec_uninit(buf, ODP_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 odp_key_tcp *tcp_key;
+
+ tcp_key = nl_msg_put_unspec_uninit(buf, ODP_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 odp_key_udp *udp_key;
+
+ udp_key = nl_msg_put_unspec_uninit(buf, ODP_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 odp_key_icmp *icmp_key;
+
+ icmp_key = nl_msg_put_unspec_uninit(buf, ODP_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 odp_key_icmpv6 *icmpv6_key;
+
+ icmpv6_key = nl_msg_put_unspec_uninit(buf, ODP_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 odp_key_nd *nd_key;
+
+ nd_key = nl_msg_put_unspec_uninit(buf, ODP_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 ODP_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 odp_key_type prev_type;
+ size_t left;
+
+ memset(flow, 0, sizeof *flow);
+ flow->dl_type = htons(FLOW_DL_TYPE_NONE);
+
+ prev_type = ODP_KEY_ATTR_UNSPEC;
+ NL_ATTR_FOR_EACH (nla, left, key, key_len) {
+ const struct odp_key_ethernet *eth_key;
+ const struct odp_key_8021q *q_key;
+ const struct odp_key_ipv4 *ipv4_key;
+ const struct odp_key_ipv6 *ipv6_key;
+ const struct odp_key_tcp *tcp_key;
+ const struct odp_key_udp *udp_key;
+ const struct odp_key_icmp *icmp_key;
+ const struct odp_key_icmpv6 *icmpv6_key;
+ const struct odp_key_arp *arp_key;
+ const struct odp_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(ODP_KEY_ATTR_UNSPEC, ODP_KEY_ATTR_TUN_ID):
+ flow->tun_id = nl_attr_get_be64(nla);
+ break;
+
+ case TRANSITION(ODP_KEY_ATTR_UNSPEC, ODP_KEY_ATTR_IN_PORT):
+ case TRANSITION(ODP_KEY_ATTR_TUN_ID, ODP_KEY_ATTR_IN_PORT):
+ if (nl_attr_get_u32(nla) >= UINT16_MAX) {
+ return EINVAL;
+ }
+ flow->in_port = nl_attr_get_u32(nla);
+ break;
+
+ case TRANSITION(ODP_KEY_ATTR_IN_PORT, ODP_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(ODP_KEY_ATTR_ETHERNET, ODP_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(ODP_KEY_ATTR_8021Q, ODP_KEY_ATTR_ETHERTYPE):
+ case TRANSITION(ODP_KEY_ATTR_ETHERNET, ODP_KEY_ATTR_ETHERTYPE):
+ flow->dl_type = nl_attr_get_be16(nla);
+ if (ntohs(flow->dl_type) < 1536) {
+ return EINVAL;
+ }
+ break;
+
+ case TRANSITION(ODP_KEY_ATTR_ETHERTYPE, ODP_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(ODP_KEY_ATTR_ETHERTYPE, ODP_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(ODP_KEY_ATTR_IPV4, ODP_KEY_ATTR_TCP):
+ case TRANSITION(ODP_KEY_ATTR_IPV6, ODP_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(ODP_KEY_ATTR_IPV4, ODP_KEY_ATTR_UDP):
+ case TRANSITION(ODP_KEY_ATTR_IPV6, ODP_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(ODP_KEY_ATTR_IPV4, ODP_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(ODP_KEY_ATTR_IPV6, ODP_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(ODP_KEY_ATTR_ETHERTYPE, ODP_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(ODP_KEY_ATTR_ICMPV6, ODP_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:
+ if (type == ODP_KEY_ATTR_UNSPEC
+ || prev_type == ODP_KEY_ATTR_UNSPEC) {
+ return EINVAL;
+ }
+ return EINVAL;
+ }
+
+ prev_type = type;
+ }
+ if (left) {
+ return EINVAL;
+ }
+
+ switch (prev_type) {
+ case ODP_KEY_ATTR_UNSPEC:
+ return EINVAL;
+
+ case ODP_KEY_ATTR_TUN_ID:
+ case ODP_KEY_ATTR_IN_PORT:
+ return EINVAL;
+
+ case ODP_KEY_ATTR_ETHERNET:
+ case ODP_KEY_ATTR_8021Q:
+ return 0;
+
+ case ODP_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 ODP_KEY_ATTR_IPV4:
+ if (flow->nw_proto == IPPROTO_TCP
+ || flow->nw_proto == IPPROTO_UDP
+ || flow->nw_proto == IPPROTO_ICMP) {
+ return EINVAL;
+ }
+ return 0;
+
+ case ODP_KEY_ATTR_IPV6:
+ if (flow->nw_proto == IPPROTO_TCP
+ || flow->nw_proto == IPPROTO_UDP
+ || flow->nw_proto == IPPROTO_ICMPV6) {
+ return EINVAL;
+ }
+ return 0;
+
+ case ODP_KEY_ATTR_ICMPV6:
+ if (flow->icmp_type == htons(ND_NEIGHBOR_SOLICIT)
+ || flow->icmp_type == htons(ND_NEIGHBOR_ADVERT)) {
+ return EINVAL;
+ }
+ return 0;
+
+ case ODP_KEY_ATTR_TCP:
+ case ODP_KEY_ATTR_UDP:
+ case ODP_KEY_ATTR_ICMP:
+ case ODP_KEY_ATTR_ARP:
+ case ODP_KEY_ATTR_ND:
+ return 0;
+
+ case __ODP_KEY_ATTR_MAX:
+ default:
+ NOT_REACHED();
+ }
+}
git://git.onelab.eu / sliver-openvswitch.git / blobdiff