/*
- * Copyright (c) 2008, 2009, 2010, 2011 Nicira Networks.
+ * Copyright (c) 2008, 2009, 2010, 2011, 2012 Nicira, Inc.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
struct ofpbuf;
struct ds;
+struct flow;
bool dpid_from_string(const char *s, uint64_t *dpidp);
};
BUILD_ASSERT_DECL(IP_HEADER_LEN == sizeof(struct ip_header));
-#define ICMP_HEADER_LEN 4
+#define ICMP_HEADER_LEN 8
struct icmp_header {
uint8_t icmp_type;
uint8_t icmp_code;
ovs_be16 icmp_csum;
+ union {
+ struct {
+ ovs_be16 id;
+ ovs_be16 seq;
+ } echo;
+ struct {
+ ovs_be16 empty;
+ ovs_be16 mtu;
+ } frag;
+ ovs_be32 gateway;
+ } icmp_fields;
+ uint8_t icmp_data[0];
};
BUILD_ASSERT_DECL(ICMP_HEADER_LEN == sizeof(struct icmp_header));
#define TCP_ACK 0x10
#define TCP_URG 0x20
+#define TCP_CTL(flags, offset) (htons((flags) | ((offset) << 12)))
#define TCP_FLAGS(tcp_ctl) (ntohs(tcp_ctl) & 0x003f)
#define TCP_OFFSET(tcp_ctl) (ntohs(tcp_ctl) >> 12)
void *snap_compose(struct ofpbuf *, const uint8_t eth_dst[ETH_ADDR_LEN],
const uint8_t eth_src[ETH_ADDR_LEN],
unsigned int oui, uint16_t snap_type, size_t size);
+void packet_set_ipv4(struct ofpbuf *, ovs_be32 src, ovs_be32 dst, uint8_t tos,
+ uint8_t ttl);
+void packet_set_tcp_port(struct ofpbuf *, ovs_be16 src, ovs_be16 dst);
+void packet_set_udp_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);
#endif /* packets.h */