Ben Pfaff
e21567dc0d
Previously, you could change the MAC address but that had no effect on the datapath ID, so that there was no way to change the datapath ID at all.
112 lines
3.4 KiB
C
112 lines
3.4 KiB
C
/* Interface exported by OpenFlow module. */
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#ifndef DATAPATH_H
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#define DATAPATH_H 1
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#include <linux/kernel.h>
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#include <linux/mutex.h>
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#include <linux/netlink.h>
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#include <linux/netdevice.h>
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#include <linux/workqueue.h>
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#include <linux/skbuff.h>
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#include "openflow/openflow.h"
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#include "flow.h"
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#define NL_FLOWS_PER_MESSAGE 100
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#ifdef NDEBUG
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#define dprintk(x...)
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#else
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#define dprintk(x...) printk(x)
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#endif
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/* Capabilities supported by this implementation. */
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#define OFP_SUPPORTED_CAPABILITIES ( OFPC_FLOW_STATS \
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| OFPC_TABLE_STATS \
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| OFPC_PORT_STATS \
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| OFPC_MULTI_PHY_TX )
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/* Actions supported by this implementation. */
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#define OFP_SUPPORTED_ACTIONS ( (1 << OFPAT_OUTPUT) \
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| (1 << OFPAT_SET_VLAN_VID) \
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| (1 << OFPAT_SET_VLAN_PCP) \
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| (1 << OFPAT_STRIP_VLAN) \
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| (1 << OFPAT_SET_DL_SRC) \
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| (1 << OFPAT_SET_DL_DST) \
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| (1 << OFPAT_SET_NW_SRC) \
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| (1 << OFPAT_SET_NW_DST) \
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| (1 << OFPAT_SET_TP_SRC) \
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| (1 << OFPAT_SET_TP_DST) )
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struct sk_buff;
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#define DP_MAX_PORTS 255
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struct datapath {
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int dp_idx;
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struct timer_list timer; /* Expiration timer. */
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struct sw_chain *chain; /* Forwarding rules. */
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struct task_struct *dp_task; /* Kernel thread for maintenance. */
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/* Data related to the "of" device of this datapath */
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struct net_device *netdev;
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/* Configuration set from controller */
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uint16_t flags;
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uint16_t miss_send_len;
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/* Switch ports. */
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struct net_bridge_port *ports[DP_MAX_PORTS];
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struct net_bridge_port *local_port; /* OFPP_LOCAL port. */
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struct list_head port_list; /* All ports, including local_port. */
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};
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/* Information necessary to reply to the sender of an OpenFlow message. */
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struct sender {
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uint32_t xid; /* OpenFlow transaction ID of request. */
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uint32_t pid; /* Netlink process ID of sending socket. */
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uint32_t seq; /* Netlink sequence ID of request. */
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};
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struct net_bridge_port {
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u16 port_no;
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u32 config; /* Some subset of OFPPC_* flags. */
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u32 state; /* Some subset of OFPPS_* flags. */
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spinlock_t lock;
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struct work_struct port_task;
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struct datapath *dp;
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struct net_device *dev;
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struct snat_conf *snat; /* Only set if SNAT is configured for this port. */
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struct list_head node; /* Element in datapath.ports. */
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};
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extern struct mutex dp_mutex;
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extern struct notifier_block dp_device_notifier;
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int dp_del_switch_port(struct net_bridge_port *);
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int dp_xmit_skb(struct sk_buff *skb);
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int dp_output_port(struct datapath *, struct sk_buff *, int out_port,
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int ignore_no_fwd);
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int dp_output_control(struct datapath *, struct sk_buff *, uint32_t,
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size_t, int);
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void dp_set_origin(struct datapath *, uint16_t, struct sk_buff *);
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int dp_send_features_reply(struct datapath *, const struct sender *);
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int dp_send_config_reply(struct datapath *, const struct sender *);
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int dp_send_port_status(struct net_bridge_port *p, uint8_t status);
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int dp_send_flow_expired(struct datapath *, struct sw_flow *,
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enum ofp_flow_expired_reason);
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int dp_send_error_msg(struct datapath *, const struct sender *,
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uint16_t, uint16_t, const void *, size_t);
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int dp_update_port_flags(struct datapath *dp, const struct ofp_port_mod *opm);
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int dp_send_echo_reply(struct datapath *, const struct sender *,
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const struct ofp_header *);
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int dp_send_hello(struct datapath *, const struct sender *,
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const struct ofp_header *);
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/* Should hold at least RCU read lock when calling */
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struct datapath *dp_get(int dp_idx);
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#endif /* datapath.h */
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