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/*
* Distributed under the terms of the GNU GPL version 2.
* Copyright (c) 2008, 2009 Nicira Networks
*/
#ifndef OPENFLOW_NICIRA_EXT_H
#define OPENFLOW_NICIRA_EXT_H 1
#include "openflow/openflow.h"
#define NICIRA_OUI_STR "002320"
/* The following vendor extensions, proposed by Nicira Networks, are not yet
* ready for standardization (and may never be), so they are not included in
* openflow.h. */
#define NX_VENDOR_ID 0x00002320
enum nicira_type {
/* Switch status request. The request body is an ASCII string that
* specifies a prefix of the key names to include in the output; if it is
* the null string, then all key-value pairs are included. */
NXT_STATUS_REQUEST,
/* Switch status reply. The reply body is an ASCII string of key-value
* pairs in the form "key=value\n". */
NXT_STATUS_REPLY,
/* Configure an action. Most actions do not require configuration
* beyond that supplied in the actual action call. */
NXT_ACT_SET_CONFIG,
/* Get configuration of action. */
NXT_ACT_GET_CONFIG,
/* Remote command execution. The request body is a sequence of strings
* delimited by null bytes. The first string is a command name.
* Subsequent strings are command arguments. */
NXT_COMMAND_REQUEST,
/* Remote command execution reply, sent when the command's execution
* completes. The reply body is struct nx_command_reply. */
NXT_COMMAND_REPLY,
/* No longer used. */
NXT_FLOW_END_CONFIG__OBSOLETE,
/* No longer used. */
NXT_FLOW_END__OBSOLETE,
/* Management protocol. See "openflow-mgmt.h". */
NXT_MGMT,
};
struct nicira_header {
struct ofp_header header;
uint32_t vendor; /* NX_VENDOR_ID. */
uint32_t subtype; /* One of NXT_* above. */
};
OFP_ASSERT(sizeof(struct nicira_header) == sizeof(struct ofp_vendor_header) + 4);
enum nx_action_subtype {
NXAST_SNAT__OBSOLETE, /* No longer used. */
NXAST_RESUBMIT /* Throw against flow table again. */
};
/* Action structure for NXAST_RESUBMIT. */
struct nx_action_resubmit {
uint16_t type; /* OFPAT_VENDOR. */
uint16_t len; /* Length is 8. */
uint32_t vendor; /* NX_VENDOR_ID. */
uint16_t subtype; /* NXAST_RESUBMIT. */
uint16_t in_port; /* New in_port for checking flow table. */
uint8_t pad[4];
};
OFP_ASSERT(sizeof(struct nx_action_resubmit) == 16);
/* Header for Nicira-defined actions. */
struct nx_action_header {
uint16_t type; /* OFPAT_VENDOR. */
uint16_t len; /* Length is 8. */
uint32_t vendor; /* NX_VENDOR_ID. */
uint16_t subtype; /* NXAST_*. */
uint8_t pad[6];
};
OFP_ASSERT(sizeof(struct nx_action_header) == 16);
/* Status bits for NXT_COMMAND_REPLY. */
enum {
NXT_STATUS_EXITED = 1 << 31, /* Exited normally. */
NXT_STATUS_SIGNALED = 1 << 30, /* Exited due to signal. */
NXT_STATUS_UNKNOWN = 1 << 29, /* Exited for unknown reason. */
NXT_STATUS_COREDUMP = 1 << 28, /* Exited with core dump. */
NXT_STATUS_ERROR = 1 << 27, /* Command could not be executed. */
NXT_STATUS_STARTED = 1 << 26, /* Command was started. */
NXT_STATUS_EXITSTATUS = 0xff, /* Exit code mask if NXT_STATUS_EXITED. */
NXT_STATUS_TERMSIG = 0xff, /* Signal number if NXT_STATUS_SIGNALED. */
};
/* NXT_COMMAND_REPLY. */
struct nx_command_reply {
struct nicira_header nxh;
uint32_t status; /* Status bits defined above. */
/* Followed by any number of bytes of process output. */
};
OFP_ASSERT(sizeof(struct nx_command_reply) == 20);
#endif /* openflow/nicira-ext.h */
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