/*
- * Copyright (c) 2008, 2009, 2010, 2011, 2012, 2013 Nicira, Inc.
+ * Copyright (c) 2008, 2009, 2010, 2011, 2012, 2013, 2014 Nicira, Inc.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
#include "flow.h"
#include "openvswitch/types.h"
#include "random.h"
+#include "hash.h"
#include "util.h"
struct ofpbuf;
struct ds;
+/* Datapath packet metadata */
+struct pkt_metadata {
+ uint32_t recirc_id; /* Recirculation id carried with the
+ recirculating packets. 0 for packets
+ received from the wire. */
+ uint32_t dp_hash; /* hash value computed by the recirculation
+ action. */
+ struct flow_tnl tunnel; /* Encapsulating tunnel parameters. */
+ uint32_t skb_priority; /* Packet priority for QoS. */
+ uint32_t pkt_mark; /* Packet mark. */
+ union flow_in_port in_port; /* Input port. */
+};
+
+#define PKT_METADATA_INITIALIZER(PORT) \
+ (struct pkt_metadata){ 0, 0, { 0, 0, 0, 0, 0, 0}, 0, 0, {(PORT)} }
+
+static inline struct pkt_metadata
+pkt_metadata_from_flow(const struct flow *flow)
+{
+ struct pkt_metadata md;
+
+ md.recirc_id = flow->recirc_id;
+ md.dp_hash = flow->dp_hash;
+ md.tunnel = flow->tunnel;
+ md.skb_priority = flow->skb_priority;
+ md.pkt_mark = flow->pkt_mark;
+ md.in_port = flow->in_port;
+
+ return md;
+}
+
bool dpid_from_string(const char *s, uint64_t *dpidp);
#define ETH_ADDR_LEN 6
| ((uint64_t) ea[4] << 8)
| ea[5]);
}
+static inline uint64_t eth_addr_vlan_to_uint64(const uint8_t ea[ETH_ADDR_LEN],
+ uint16_t vlan)
+{
+ return (((uint64_t)vlan << 48) | eth_addr_to_uint64(ea));
+}
static inline void eth_addr_from_uint64(uint64_t x, uint8_t ea[ETH_ADDR_LEN])
{
ea[0] = x >> 40;
/* Set the top bit to indicate random Nicira address. */
ea[3] |= 0x80;
}
+static inline uint32_t hash_mac(const uint8_t ea[ETH_ADDR_LEN],
+ const uint16_t vlan, const uint32_t basis)
+{
+ return hash_uint64_basis(eth_addr_vlan_to_uint64(ea, vlan), basis);
+}
bool eth_addr_is_reserved(const uint8_t ea[ETH_ADDR_LEN]);
bool eth_addr_from_string(const char *, uint8_t ea[ETH_ADDR_LEN]);
void compose_rarp(struct ofpbuf *, const uint8_t eth_src[ETH_ADDR_LEN]);
-void eth_push_vlan(struct ofpbuf *, ovs_be16 tci);
+void eth_push_vlan(struct ofpbuf *, ovs_be16 tpid, ovs_be16 tci);
void eth_pop_vlan(struct ofpbuf *);
-void set_ethertype(struct ofpbuf *packet, ovs_be16 eth_type);
-
const char *eth_from_hex(const char *hex, struct ofpbuf **packetp);
void eth_format_masked(const uint8_t eth[ETH_ADDR_LEN],
const uint8_t mask[ETH_ADDR_LEN], struct ds *s);
* uint8_t mac[ETH_ADDR_LEN];
* int a, b;
*
- * if (sscanf(string, "%d"ETH_ADDR_SCAN_FMT"%d",
- * &a, ETH_ADDR_SCAN_ARGS(mac), &b) == 1 + ETH_ADDR_SCAN_COUNT + 1) {
+ * if (ovs_scan(string, "%d"ETH_ADDR_SCAN_FMT"%d",
+ * &a, ETH_ADDR_SCAN_ARGS(mac), &b)) {
* ...
* }
*/
#define ETH_ADDR_SCAN_FMT "%"SCNx8":%"SCNx8":%"SCNx8":%"SCNx8":%"SCNx8":%"SCNx8
#define ETH_ADDR_SCAN_ARGS(ea) \
&(ea)[0], &(ea)[1], &(ea)[2], &(ea)[3], &(ea)[4], &(ea)[5]
-#define ETH_ADDR_SCAN_COUNT 6
#define ETH_TYPE_IP 0x0800
#define ETH_TYPE_ARP 0x0806
* ovs_be32 ip;
* int a, b;
*
- * if (sscanf(string, "%d"IP_SCAN_FMT"%d",
- * &a, IP_SCAN_ARGS(&ip), &b) == 1 + IP_SCAN_COUNT + 1) {
+ * if (ovs_scan(string, "%d"IP_SCAN_FMT"%d", &a, IP_SCAN_ARGS(&ip), &b)) {
* ...
* }
*/
&((uint8_t *) ip)[1], \
&((uint8_t *) ip)[2], \
&((uint8_t *) ip)[3]
-#define IP_SCAN_COUNT 4
/* Returns true if 'netmask' is a CIDR netmask, that is, if it consists of N
* high-order 1-bits and 32-N low-order 0-bits. */
};
BUILD_ASSERT_DECL(UDP_HEADER_LEN == sizeof(struct udp_header));
-#define TCP_FIN 0x01
-#define TCP_SYN 0x02
-#define TCP_RST 0x04
-#define TCP_PSH 0x08
-#define TCP_ACK 0x10
-#define TCP_URG 0x20
+#define TCP_FIN 0x001
+#define TCP_SYN 0x002
+#define TCP_RST 0x004
+#define TCP_PSH 0x008
+#define TCP_ACK 0x010
+#define TCP_URG 0x020
+#define TCP_ECE 0x040
+#define TCP_CWR 0x080
+#define TCP_NS 0x100
#define TCP_CTL(flags, offset) (htons((flags) | ((offset) << 12)))
-#define TCP_FLAGS(tcp_ctl) (ntohs(tcp_ctl) & 0x003f)
+#define TCP_FLAGS(tcp_ctl) (ntohs(tcp_ctl) & 0x0fff)
#define TCP_OFFSET(tcp_ctl) (ntohs(tcp_ctl) >> 12)
#define TCP_HEADER_LEN 20
* char ipv6_s[IPV6_SCAN_LEN + 1];
* struct in6_addr ipv6;
*
- * if (sscanf(string, "%d"IPV6_SCAN_FMT"%d", &a, ipv6_s, &b) == 3
+ * if (ovs_scan(string, "%d"IPV6_SCAN_FMT"%d", &a, ipv6_s, &b)
* && inet_pton(AF_INET6, ipv6_s, &ipv6) == 1) {
* ...
* }
return dl_type_is_ip_any(flow->dl_type);
}
+static inline bool is_icmpv4(const struct flow *flow)
+{
+ return (flow->dl_type == htons(ETH_TYPE_IP)
+ && flow->nw_proto == IPPROTO_ICMP);
+}
+
+static inline bool is_icmpv6(const struct flow *flow)
+{
+ return (flow->dl_type == htons(ETH_TYPE_IPV6)
+ && flow->nw_proto == IPPROTO_ICMPV6);
+}
+
void format_ipv6_addr(char *addr_str, const struct in6_addr *addr);
void print_ipv6_addr(struct ds *string, const struct in6_addr *addr);
void print_ipv6_masked(struct ds *string, const struct in6_addr *addr,
void packet_set_udp_port(struct ofpbuf *, ovs_be16 src, ovs_be16 dst);
void packet_set_sctp_port(struct ofpbuf *, ovs_be16 src, ovs_be16 dst);
-uint8_t packet_get_tcp_flags(const struct ofpbuf *, const struct flow *);
-void packet_format_tcp_flags(struct ds *, uint8_t);
+void packet_format_tcp_flags(struct ds *, uint16_t);
+const char *packet_tcp_flag_to_string(uint32_t flag);
#endif /* packets.h */