/*
- * Copyright (c) 2008, 2009, 2010 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);
= { 0xff, 0xff, 0xff, 0xff, 0xff, 0xff };
static const uint8_t eth_addr_stp[ETH_ADDR_LEN] OVS_UNUSED
- = { 0x01, 0x80, 0xC2, 0x00, 0x00, 0x01 };
+ = { 0x01, 0x80, 0xC2, 0x00, 0x00, 0x00 };
static const uint8_t eth_addr_lacp[ETH_ADDR_LEN] OVS_UNUSED
= { 0x01, 0x80, 0xC2, 0x00, 0x00, 0x02 };
{
/* Local if it is either a locally administered address or a Nicira random
* address. */
- return !!(ea[0] & 2)
- || (ea[0] == 0x00 && ea[1] == 0x23 && ea[2] == 0x20 && !!(ea[3] & 0x80));
+ return ea[0] & 2
+ || (ea[0] == 0x00 && ea[1] == 0x23 && ea[2] == 0x20 && ea[3] & 0x80);
}
static inline bool eth_addr_is_zero(const uint8_t ea[6])
{
uint16_t snap_type,
const uint8_t eth_src[ETH_ADDR_LEN]);
+void eth_push_vlan(struct ofpbuf *, ovs_be16 tci);
+void eth_pop_vlan(struct ofpbuf *);
+
+const char *eth_from_hex(const char *hex, struct ofpbuf **packetp);
+
/* Example:
*
* uint8_t mac[ETH_ADDR_LEN];
#define ETH_TYPE_ARP 0x0806
#define ETH_TYPE_VLAN 0x8100
#define ETH_TYPE_IPV6 0x86dd
-#define ETH_TYPE_CFM 0x8902
#define ETH_TYPE_LACP 0x8809
/* Minimum value for an Ethernet type. Values below this are IEEE 802.2 frame
} __attribute__((packed));
BUILD_ASSERT_DECL(VLAN_ETH_HEADER_LEN == sizeof(struct vlan_eth_header));
-/* A 'ccm' represents a Continuity Check Message from the 802.1ag specification.
- * Continuity Check Messages are broadcast periodically so that hosts can
- * determine who they have connectivity to. */
-#define CCM_LEN 74
-#define CCM_MAID_LEN 48
-struct ccm {
- uint8_t mdlevel_version; /* MD Level and Version */
- uint8_t opcode;
- uint8_t flags;
- uint8_t tlv_offset;
- ovs_be32 seq;
- ovs_be16 mpid;
- uint8_t maid[CCM_MAID_LEN];
- uint8_t zero[16]; /* Defined by ITU-T Y.1731 should be zero */
-} __attribute__((packed));
-BUILD_ASSERT_DECL(CCM_LEN == sizeof(struct ccm));
-
/* The "(void) (ip)[0]" below has no effect on the value, since it's the first
* argument of a comma expression, but it makes sure that 'ip' is a pointer.
* This is useful since a common mistake is to pass an integer instead of a
((uint8_t *) ip)[2], \
((uint8_t *) ip)[3]
+/* Example:
+ *
+ * char *string = "1 33.44.55.66 2";
+ * 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) {
+ * ...
+ * }
+ */
+#define IP_SCAN_FMT "%"SCNu8".%"SCNu8".%"SCNu8".%"SCNu8
+#define IP_SCAN_ARGS(ip) \
+ ((void) (ovs_be32) *(ip), &((uint8_t *) ip)[0]), \
+ &((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. */
static inline bool
uint32_t x = ~ntohl(netmask);
return !(x & (x + 1));
}
+static inline bool
+ip_is_multicast(ovs_be32 ip)
+{
+ return (ip & htonl(0xf0000000)) == htonl(0xe0000000);
+}
+int ip_count_cidr_bits(ovs_be32 netmask);
+void ip_format_masked(ovs_be32 ip, ovs_be32 mask, struct ds *);
#define IP_VER(ip_ihl_ver) ((ip_ihl_ver) >> 4)
#define IP_IHL(ip_ihl_ver) ((ip_ihl_ver) & 15)
};
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_FLAGS(tcp_ctl) (htons(tcp_ctl) & 0x003f)
-#define TCP_OFFSET(tcp_ctl) (htons(tcp_ctl) >> 12)
+#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)
#define TCP_HEADER_LEN 20
struct tcp_header {
} __attribute__((packed));
BUILD_ASSERT_DECL(ARP_ETH_HEADER_LEN == sizeof(struct arp_eth_header));
+/* The IPv6 flow label is in the lower 20 bits of the first 32-bit word. */
+#define IPV6_LABEL_MASK 0x000fffff
+
+/* Example:
+ *
+ * char *string = "1 ::1 2";
+ * char ipv6_s[IPV6_SCAN_LEN + 1];
+ * struct in6_addr ipv6;
+ *
+ * if (sscanf(string, "%d"IPV6_SCAN_FMT"%d", &a, ipv6_s, &b) == 3
+ * && inet_pton(AF_INET6, ipv6_s, &ipv6) == 1) {
+ * ...
+ * }
+ */
+#define IPV6_SCAN_FMT "%46[0123456789abcdefABCDEF:.]"
+#define IPV6_SCAN_LEN 46
+
extern const struct in6_addr in6addr_exact;
#define IN6ADDR_EXACT_INIT { { { 0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff, \
0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff } } }
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,
+ const struct in6_addr *mask);
struct in6_addr ipv6_addr_bitand(const struct in6_addr *src,
const struct in6_addr *mask);
struct in6_addr ipv6_create_mask(int mask);
int ipv6_count_cidr_bits(const struct in6_addr *netmask);
bool ipv6_is_cidr(const struct in6_addr *netmask);
-/* Masks for lacp_info state member. */
-#define LACP_STATE_ACT 0x01 /* Activity. Active or passive? */
-#define LACP_STATE_TIME 0x02 /* Timeout. Short or long timeout? */
-#define LACP_STATE_AGG 0x04 /* Aggregation. Is the link is bondable? */
-#define LACP_STATE_SYNC 0x08 /* Synchronization. Is the link in up to date? */
-#define LACP_STATE_COL 0x10 /* Collecting. Is the link receiving frames? */
-#define LACP_STATE_DIST 0x20 /* Distributing. Is the link sending frames? */
-#define LACP_STATE_DEF 0x40 /* Defaulted. Using default partner info? */
-#define LACP_STATE_EXP 0x80 /* Expired. Using expired partner info? */
-
-#define LACP_FAST_TIME_TX 1000 /* Fast transmission rate. */
-#define LACP_SLOW_TIME_TX 30000 /* Slow transmission rate. */
-#define LACP_FAST_TIME_RX (LACP_FAST_TIME_TX * 3) /* Fast receive rate. */
-#define LACP_SLOW_TIME_RX (LACP_SLOW_TIME_TX * 3) /* Slow receive rate. */
-
-#define LACP_INFO_LEN 15
-struct lacp_info {
- ovs_be16 sys_priority; /* System priority. */
- uint8_t sys_id[ETH_ADDR_LEN]; /* System ID. */
- ovs_be16 key; /* Operational key. */
- ovs_be16 port_priority; /* Port priority. */
- ovs_be16 port_id; /* Port ID. */
- uint8_t state; /* State mask. See LACP_STATE macros. */
-} __attribute__((packed));
-BUILD_ASSERT_DECL(LACP_INFO_LEN == sizeof(struct lacp_info));
-
-#define LACP_PDU_LEN 110
-struct lacp_pdu {
- uint8_t subtype; /* Always 1. */
- uint8_t version; /* Always 1. */
-
- uint8_t actor_type; /* Always 1. */
- uint8_t actor_len; /* Always 20. */
- struct lacp_info actor; /* LACP actor information. */
- uint8_t z1[3]; /* Reserved. Always 0. */
-
- uint8_t partner_type; /* Always 2. */
- uint8_t partner_len; /* Always 20. */
- struct lacp_info partner; /* LACP partner information. */
- uint8_t z2[3]; /* Reserved. Always 0. */
-
- uint8_t collector_type; /* Always 3. */
- uint8_t collector_len; /* Always 16. */
- ovs_be16 collector_delay; /* Maximum collector delay. Set to UINT16_MAX. */
- uint8_t z3[64]; /* Combination of several fields. Always 0. */
-} __attribute__((packed));
-BUILD_ASSERT_DECL(LACP_PDU_LEN == sizeof(struct lacp_pdu));
-
-void compose_lacp_packet(struct ofpbuf *, const uint8_t eth_src[ETH_ADDR_LEN],
- const struct lacp_pdu *);
-
-void compose_lacp_pdu(const struct lacp_info *actor,
- const struct lacp_info *partner, struct lacp_pdu *);
-
-const struct lacp_pdu *parse_lacp_packet(const struct ofpbuf *);
+void *eth_compose(struct ofpbuf *, const uint8_t eth_dst[ETH_ADDR_LEN],
+ const uint8_t eth_src[ETH_ADDR_LEN], uint16_t eth_type,
+ size_t size);
+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 */
git://git.onelab.eu / sliver-openvswitch.git / blobdiff