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ovs/lib/ofp-port.c
Ben Pfaff 29718ad49d Remove support for OpenFlow 1.6 (draft). 
ONF abandoned the OpenFlow specification, so that OpenFlow 1.6 will never
be completed.  It did not contain much in the way of useful features, so
remove what support Open vSwitch already had.

Signed-off-by: Ben Pfaff <blp@ovn.org>
Acked-by: Justin Pettit <jpettit@ovn.org>
2019-02-05 09:21:19 -08:00

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/*
* Copyright (c) 2008-2017 Nicira, Inc.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at:
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
#include <config.h>
#include "openvswitch/ofp-port.h"
#include <ctype.h>
#include "byte-order.h"
#include "flow.h"
#include "openflow/intel-ext.h"
#include "openvswitch/json.h"
#include "openvswitch/ofp-errors.h"
#include "openvswitch/ofp-msgs.h"
#include "openvswitch/ofp-print.h"
#include "openvswitch/ofp-prop.h"
#include "openvswitch/ofpbuf.h"
#include "openvswitch/vlog.h"
VLOG_DEFINE_THIS_MODULE(ofp_port);
static struct vlog_rate_limit rl = VLOG_RATE_LIMIT_INIT(1, 5);
/* ofputil_port_map. */
void
ofputil_port_map_init(struct ofputil_port_map *map)
{
namemap_init(&map->map);
}
void
ofputil_port_map_put(struct ofputil_port_map *map,
ofp_port_t ofp_port, const char *name)
{
namemap_put(&map->map, ofp_to_u16(ofp_port), name);
}
const char *
ofputil_port_map_get_name(const struct ofputil_port_map *map,
ofp_port_t ofp_port)
{
struct namemap_node *node
= (map
? namemap_find_by_number(&map->map, ofp_to_u16(ofp_port))
: NULL);
return node && !node->duplicate ? node->name : NULL;
}
ofp_port_t
ofputil_port_map_get_number(const struct ofputil_port_map *map,
const char *name)
{
struct namemap_node *node
= map ? namemap_find_by_name(&map->map, name) : NULL;
return node && !node->duplicate ? u16_to_ofp(node->number) : OFPP_NONE;
}
void
ofputil_port_map_destroy(struct ofputil_port_map *map)
{
namemap_destroy(&map->map);
}
/* Converts the OpenFlow 1.1+ port number 'ofp11_port' into an OpenFlow 1.0
* port number and stores the latter in '*ofp10_port', for the purpose of
* decoding OpenFlow 1.1+ protocol messages. Returns 0 if successful,
* otherwise an OFPERR_* number. On error, stores OFPP_NONE in '*ofp10_port'.
*
* See the definition of OFP11_MAX for an explanation of the mapping. */
enum ofperr
ofputil_port_from_ofp11(ovs_be32 ofp11_port, ofp_port_t *ofp10_port)
{
uint32_t ofp11_port_h = ntohl(ofp11_port);
if (ofp11_port_h < ofp_to_u16(OFPP_MAX)) {
*ofp10_port = u16_to_ofp(ofp11_port_h);
return 0;
} else if (ofp11_port_h >= ofp11_to_u32(OFPP11_MAX)) {
*ofp10_port = u16_to_ofp(ofp11_port_h - OFPP11_OFFSET);
return 0;
} else {
*ofp10_port = OFPP_NONE;
static struct vlog_rate_limit rll = VLOG_RATE_LIMIT_INIT(1, 5);
VLOG_WARN_RL(&rll, "port %"PRIu32" is outside the supported "
"range 0 through %d or 0x%"PRIx32" through 0x%"PRIx32,
ofp11_port_h, ofp_to_u16(OFPP_MAX) - 1,
ofp11_to_u32(OFPP11_MAX), UINT32_MAX);
return OFPERR_OFPBAC_BAD_OUT_PORT;
}
}
/* Returns the OpenFlow 1.1+ port number equivalent to the OpenFlow 1.0 port
* number 'ofp10_port', for encoding OpenFlow 1.1+ protocol messages.
*
* See the definition of OFP11_MAX for an explanation of the mapping. */
ovs_be32
ofputil_port_to_ofp11(ofp_port_t ofp10_port)
{
return htonl(ofp_to_u16(ofp10_port) < ofp_to_u16(OFPP_MAX)
? ofp_to_u16(ofp10_port)
: ofp_to_u16(ofp10_port) + OFPP11_OFFSET);
}
#define OFPUTIL_NAMED_PORTS \
OFPUTIL_NAMED_PORT(IN_PORT) \
OFPUTIL_NAMED_PORT(TABLE) \
OFPUTIL_NAMED_PORT(NORMAL) \
OFPUTIL_NAMED_PORT(FLOOD) \
OFPUTIL_NAMED_PORT(ALL) \
OFPUTIL_NAMED_PORT(CONTROLLER) \
OFPUTIL_NAMED_PORT(LOCAL) \
OFPUTIL_NAMED_PORT(ANY) \
OFPUTIL_NAMED_PORT(UNSET)
/* For backwards compatibility, so that "none" is recognized as OFPP_ANY */
#define OFPUTIL_NAMED_PORTS_WITH_NONE \
OFPUTIL_NAMED_PORTS \
OFPUTIL_NAMED_PORT(NONE)
/* Stores the port number represented by 's' into '*portp'. 's' may be an
* integer or, for reserved ports, the standard OpenFlow name for the port
* (e.g. "LOCAL"). If 'port_map' is nonnull, also accepts names in it (quoted
* or unquoted).
*
* Returns true if successful, false if 's' is not a valid OpenFlow port number
* or name. The caller should issue an error message in this case, because
* this function usually does not. (This gives the caller an opportunity to
* look up the port name another way, e.g. by contacting the switch and listing
* the names of all its ports).
*
* This function accepts OpenFlow 1.0 port numbers. It also accepts a subset
* of OpenFlow 1.1+ port numbers, mapping those port numbers into the 16-bit
* range as described in include/openflow/openflow-1.1.h. */
bool
ofputil_port_from_string(const char *s,
const struct ofputil_port_map *port_map,
ofp_port_t *portp)
{
unsigned int port32; /* int is at least 32 bits wide. */
if (*s == '-') {
VLOG_WARN("Negative value %s is not a valid port number.", s);
return false;
}
*portp = 0;
if (str_to_uint(s, 10, &port32)) {
if (port32 < ofp_to_u16(OFPP_MAX)) {
/* Pass. */
} else if (port32 < ofp_to_u16(OFPP_FIRST_RESV)) {
VLOG_WARN("port %u is a reserved OF1.0 port number that will "
"be translated to %u when talking to an OF1.1 or "
"later controller", port32, port32 + OFPP11_OFFSET);
} else if (port32 <= ofp_to_u16(OFPP_LAST_RESV)) {
char name[OFP_MAX_PORT_NAME_LEN];
ofputil_port_to_string(u16_to_ofp(port32), NULL,
name, sizeof name);
VLOG_WARN_ONCE("referring to port %s as %"PRIu32" is deprecated "
"for compatibility with OpenFlow 1.1 and later",
name, port32);
} else if (port32 < ofp11_to_u32(OFPP11_MAX)) {
VLOG_WARN("port %u is outside the supported range 0 through "
"%x or 0x%x through 0x%"PRIx32, port32,
UINT16_MAX, ofp11_to_u32(OFPP11_MAX), UINT32_MAX);
return false;
} else {
port32 -= OFPP11_OFFSET;
}
*portp = u16_to_ofp(port32);
return true;
} else {
struct pair {
const char *name;
ofp_port_t value;
};
static const struct pair pairs[] = {
#define OFPUTIL_NAMED_PORT(NAME) {#NAME, OFPP_##NAME},
OFPUTIL_NAMED_PORTS_WITH_NONE
#undef OFPUTIL_NAMED_PORT
};
const struct pair *p;
for (p = pairs; p < &pairs[ARRAY_SIZE(pairs)]; p++) {
if (!strcasecmp(s, p->name)) {
*portp = p->value;
return true;
}
}
ofp_port_t ofp_port = OFPP_NONE;
if (s[0] != '"') {
ofp_port = ofputil_port_map_get_number(port_map, s);
} else {
size_t length = strlen(s);
char *name = NULL;
if (length > 1
&& s[length - 1] == '"'
&& json_string_unescape(s + 1, length - 2, &name)) {
ofp_port = ofputil_port_map_get_number(port_map, name);
}
free(name);
}
if (ofp_port != OFPP_NONE) {
*portp = ofp_port;
return true;
}
return false;
}
}
const char *
ofputil_port_get_reserved_name(ofp_port_t port)
{
switch (port) {
#define OFPUTIL_NAMED_PORT(NAME) case OFPP_##NAME: return #NAME;
OFPUTIL_NAMED_PORTS
#undef OFPUTIL_NAMED_PORT
default:
return NULL;
}
}
/* Appends to 's' a string representation of the OpenFlow port number 'port'.
* Most ports' string representation is just the port number, but for special
* ports, e.g. OFPP_LOCAL, it is the name, e.g. "LOCAL". */
void
ofputil_format_port(ofp_port_t port, const struct ofputil_port_map *port_map,
struct ds *s)
{
const char *reserved_name = ofputil_port_get_reserved_name(port);
if (reserved_name) {
ds_put_cstr(s, reserved_name);
return;
}
const char *port_name = ofputil_port_map_get_name(port_map, port);
if (port_name) {
namemap_put_name(port_name, s);
return;
}
ds_put_format(s, "%"PRIu32, port);
}
/* Puts in the 'bufsize' byte in 'namebuf' a null-terminated string
* representation of OpenFlow port number 'port'. Most ports are represented
* as just the port number, but special ports, e.g. OFPP_LOCAL, are represented
* by name, e.g. "LOCAL". */
void
ofputil_port_to_string(ofp_port_t port,
const struct ofputil_port_map *port_map,
char *namebuf, size_t bufsize)
{
const char *reserved_name = ofputil_port_get_reserved_name(port);
if (reserved_name) {
ovs_strlcpy(namebuf, reserved_name, bufsize);
return;
}
const char *port_name = ofputil_port_map_get_name(port_map, port);
if (port_name) {
struct ds s = DS_EMPTY_INITIALIZER;
namemap_put_name(port_name, &s);
ovs_strlcpy(namebuf, ds_cstr(&s), bufsize);
ds_destroy(&s);
return;
}
snprintf(namebuf, bufsize, "%"PRIu32, port);
}
/* ofputil_port_config */
static const char *
ofputil_port_config_to_name(uint32_t bit)
{
enum ofputil_port_config pc = bit;
switch (pc) {
case OFPUTIL_PC_PORT_DOWN: return "PORT_DOWN";
case OFPUTIL_PC_NO_STP: return "NO_STP";
case OFPUTIL_PC_NO_RECV: return "NO_RECV";
case OFPUTIL_PC_NO_RECV_STP: return "NO_RECV_STP";
case OFPUTIL_PC_NO_FLOOD: return "NO_FLOOD";
case OFPUTIL_PC_NO_FWD: return "NO_FWD";
case OFPUTIL_PC_NO_PACKET_IN: return "NO_PACKET_IN";
}
return NULL;
}
void
ofputil_port_config_format(struct ds *s, enum ofputil_port_config config)
{
ofp_print_bit_names(s, config, ofputil_port_config_to_name, ' ');
ds_put_char(s, '\n');
}
/* ofputil_port_state */
static const char *
ofputil_port_state_to_name(uint32_t bit)
{
enum ofputil_port_state ps = bit;
switch (ps) {
case OFPUTIL_PS_LINK_DOWN: return "LINK_DOWN";
case OFPUTIL_PS_BLOCKED: return "BLOCKED";
case OFPUTIL_PS_LIVE: return "LIVE";
case OFPUTIL_PS_STP_LISTEN:
case OFPUTIL_PS_STP_LEARN:
case OFPUTIL_PS_STP_FORWARD:
case OFPUTIL_PS_STP_BLOCK:
/* Handled elsewhere. */
return NULL;
}
return NULL;
}
void
ofputil_port_state_format(struct ds *s, enum ofputil_port_state state)
{
enum ofputil_port_state stp_state;
/* The STP state is a 2-bit field so it doesn't fit in with the bitmask
* pattern. We have to special case it.
*
* OVS doesn't support STP, so this field will always be 0 if we are
* talking to OVS, so we'd always print STP_LISTEN in that case.
* Therefore, we don't print anything at all if the value is STP_LISTEN, to
* avoid confusing users. */
stp_state = state & OFPUTIL_PS_STP_MASK;
if (stp_state) {
ds_put_cstr(s, (stp_state == OFPUTIL_PS_STP_LEARN ? "STP_LEARN"
: stp_state == OFPUTIL_PS_STP_FORWARD ? "STP_FORWARD"
: "STP_BLOCK"));
state &= ~OFPUTIL_PS_STP_MASK;
if (state) {
ofp_print_bit_names(s, state, ofputil_port_state_to_name, ' ');
}
} else {
ofp_print_bit_names(s, state, ofputil_port_state_to_name, ' ');
}
ds_put_char(s, '\n');
}
/* ofputil_phy_port */
/* NETDEV_F_* to and from OFPPF_* and OFPPF10_*. */
BUILD_ASSERT_DECL((int) NETDEV_F_10MB_HD == OFPPF_10MB_HD); /* bit 0 */
BUILD_ASSERT_DECL((int) NETDEV_F_10MB_FD == OFPPF_10MB_FD); /* bit 1 */
BUILD_ASSERT_DECL((int) NETDEV_F_100MB_HD == OFPPF_100MB_HD); /* bit 2 */
BUILD_ASSERT_DECL((int) NETDEV_F_100MB_FD == OFPPF_100MB_FD); /* bit 3 */
BUILD_ASSERT_DECL((int) NETDEV_F_1GB_HD == OFPPF_1GB_HD); /* bit 4 */
BUILD_ASSERT_DECL((int) NETDEV_F_1GB_FD == OFPPF_1GB_FD); /* bit 5 */
BUILD_ASSERT_DECL((int) NETDEV_F_10GB_FD == OFPPF_10GB_FD); /* bit 6 */
/* NETDEV_F_ bits 11...15 are OFPPF10_ bits 7...11: */
BUILD_ASSERT_DECL((int) NETDEV_F_COPPER == (OFPPF10_COPPER << 4));
BUILD_ASSERT_DECL((int) NETDEV_F_FIBER == (OFPPF10_FIBER << 4));
BUILD_ASSERT_DECL((int) NETDEV_F_AUTONEG == (OFPPF10_AUTONEG << 4));
BUILD_ASSERT_DECL((int) NETDEV_F_PAUSE == (OFPPF10_PAUSE << 4));
BUILD_ASSERT_DECL((int) NETDEV_F_PAUSE_ASYM == (OFPPF10_PAUSE_ASYM << 4));
static enum netdev_features
netdev_port_features_from_ofp10(ovs_be32 ofp10_)
{
uint32_t ofp10 = ntohl(ofp10_);
return (ofp10 & 0x7f) | ((ofp10 & 0xf80) << 4);
}
static ovs_be32
netdev_port_features_to_ofp10(enum netdev_features features)
{
return htonl((features & 0x7f) | ((features & 0xf800) >> 4));
}
BUILD_ASSERT_DECL((int) NETDEV_F_10MB_HD == OFPPF_10MB_HD); /* bit 0 */
BUILD_ASSERT_DECL((int) NETDEV_F_10MB_FD == OFPPF_10MB_FD); /* bit 1 */
BUILD_ASSERT_DECL((int) NETDEV_F_100MB_HD == OFPPF_100MB_HD); /* bit 2 */
BUILD_ASSERT_DECL((int) NETDEV_F_100MB_FD == OFPPF_100MB_FD); /* bit 3 */
BUILD_ASSERT_DECL((int) NETDEV_F_1GB_HD == OFPPF_1GB_HD); /* bit 4 */
BUILD_ASSERT_DECL((int) NETDEV_F_1GB_FD == OFPPF_1GB_FD); /* bit 5 */
BUILD_ASSERT_DECL((int) NETDEV_F_10GB_FD == OFPPF_10GB_FD); /* bit 6 */
BUILD_ASSERT_DECL((int) NETDEV_F_40GB_FD == OFPPF11_40GB_FD); /* bit 7 */
BUILD_ASSERT_DECL((int) NETDEV_F_100GB_FD == OFPPF11_100GB_FD); /* bit 8 */
BUILD_ASSERT_DECL((int) NETDEV_F_1TB_FD == OFPPF11_1TB_FD); /* bit 9 */
BUILD_ASSERT_DECL((int) NETDEV_F_OTHER == OFPPF11_OTHER); /* bit 10 */
BUILD_ASSERT_DECL((int) NETDEV_F_COPPER == OFPPF11_COPPER); /* bit 11 */
BUILD_ASSERT_DECL((int) NETDEV_F_FIBER == OFPPF11_FIBER); /* bit 12 */
BUILD_ASSERT_DECL((int) NETDEV_F_AUTONEG == OFPPF11_AUTONEG); /* bit 13 */
BUILD_ASSERT_DECL((int) NETDEV_F_PAUSE == OFPPF11_PAUSE); /* bit 14 */
BUILD_ASSERT_DECL((int) NETDEV_F_PAUSE_ASYM == OFPPF11_PAUSE_ASYM);/* bit 15 */
static enum netdev_features
netdev_port_features_from_ofp11(ovs_be32 ofp11)
{
return ntohl(ofp11) & 0xffff;
}
static ovs_be32
netdev_port_features_to_ofp11(enum netdev_features features)
{
return htonl(features & 0xffff);
}
static enum ofperr
ofputil_decode_ofp10_phy_port(struct ofputil_phy_port *pp,
const struct ofp10_phy_port *opp)
{
pp->port_no = u16_to_ofp(ntohs(opp->port_no));
pp->hw_addr = opp->hw_addr;
ovs_strlcpy_arrays(pp->name, opp->name);
pp->config = ntohl(opp->config) & OFPPC10_ALL;
pp->state = ntohl(opp->state) & OFPPS10_ALL;
pp->curr = netdev_port_features_from_ofp10(opp->curr);
pp->advertised = netdev_port_features_from_ofp10(opp->advertised);
pp->supported = netdev_port_features_from_ofp10(opp->supported);
pp->peer = netdev_port_features_from_ofp10(opp->peer);
pp->curr_speed = netdev_features_to_bps(pp->curr, 0) / 1000;
pp->max_speed = netdev_features_to_bps(pp->supported, 0) / 1000;
return 0;
}
static enum ofperr
ofputil_decode_ofp11_port(struct ofputil_phy_port *pp,
const struct ofp11_port *op)
{
enum ofperr error;
error = ofputil_port_from_ofp11(op->port_no, &pp->port_no);
if (error) {
return error;
}
pp->hw_addr = op->hw_addr;
ovs_strlcpy_arrays(pp->name, op->name);
pp->config = ntohl(op->config) & OFPPC11_ALL;
pp->state = ntohl(op->state) & OFPPS11_ALL;
pp->curr = netdev_port_features_from_ofp11(op->curr);
pp->advertised = netdev_port_features_from_ofp11(op->advertised);
pp->supported = netdev_port_features_from_ofp11(op->supported);
pp->peer = netdev_port_features_from_ofp11(op->peer);
pp->curr_speed = ntohl(op->curr_speed);
pp->max_speed = ntohl(op->max_speed);
return 0;
}
static enum ofperr
parse_ofp14_port_ethernet_property(const struct ofpbuf *payload,
struct ofputil_phy_port *pp)
{
struct ofp14_port_desc_prop_ethernet *eth = payload->data;
if (payload->size != sizeof *eth) {
return OFPERR_OFPBPC_BAD_LEN;
}
pp->curr = netdev_port_features_from_ofp11(eth->curr);
pp->advertised = netdev_port_features_from_ofp11(eth->advertised);
pp->supported = netdev_port_features_from_ofp11(eth->supported);
pp->peer = netdev_port_features_from_ofp11(eth->peer);
pp->curr_speed = ntohl(eth->curr_speed);
pp->max_speed = ntohl(eth->max_speed);
return 0;
}
static enum ofperr
ofputil_pull_ofp14_port_properties(const void *props, size_t len,
struct ofputil_phy_port *pp)
{
struct ofpbuf properties = ofpbuf_const_initializer(props, len);
while (properties.size > 0) {
struct ofpbuf payload;
enum ofperr error;
uint64_t type;
error = ofpprop_pull(&properties, &payload, &type);
if (error) {
return error;
}
switch (type) {
case OFPPDPT14_ETHERNET:
error = parse_ofp14_port_ethernet_property(&payload, pp);
break;
default:
error = OFPPROP_UNKNOWN(true, "port", type);
break;
}
if (error) {
return error;
}
}
return 0;
}
static enum ofperr
ofputil_pull_ofp14_port(struct ofputil_phy_port *pp, struct ofpbuf *msg)
{
const struct ofp14_port *op = ofpbuf_try_pull(msg, sizeof *op);
if (!op) {
return OFPERR_OFPBRC_BAD_LEN;
}
size_t len = ntohs(op->length);
if (len < sizeof *op || len - sizeof *op > msg->size) {
return OFPERR_OFPBRC_BAD_LEN;
}
len -= sizeof *op;
enum ofperr error = ofputil_port_from_ofp11(op->port_no, &pp->port_no);
if (error) {
return error;
}
pp->hw_addr = op->hw_addr;
ovs_strlcpy_arrays(pp->name, op->name);
pp->config = ntohl(op->config) & OFPPC11_ALL;
pp->state = ntohl(op->state) & OFPPS11_ALL;
return ofputil_pull_ofp14_port_properties(ofpbuf_pull(msg, len), len, pp);
}
static void
ofputil_encode_ofp10_phy_port(const struct ofputil_phy_port *pp,
struct ofp10_phy_port *opp)
{
memset(opp, 0, sizeof *opp);
opp->port_no = htons(ofp_to_u16(pp->port_no));
opp->hw_addr = pp->hw_addr;
ovs_strlcpy_arrays(opp->name, pp->name);
opp->config = htonl(pp->config & OFPPC10_ALL);
opp->state = htonl(pp->state & OFPPS10_ALL);
opp->curr = netdev_port_features_to_ofp10(pp->curr);
opp->advertised = netdev_port_features_to_ofp10(pp->advertised);
opp->supported = netdev_port_features_to_ofp10(pp->supported);
opp->peer = netdev_port_features_to_ofp10(pp->peer);
}
static void
ofputil_encode_ofp11_port(const struct ofputil_phy_port *pp,
struct ofp11_port *op)
{
memset(op, 0, sizeof *op);
op->port_no = ofputil_port_to_ofp11(pp->port_no);
op->hw_addr = pp->hw_addr;
ovs_strlcpy_arrays(op->name, pp->name);
op->config = htonl(pp->config & OFPPC11_ALL);
op->state = htonl(pp->state & OFPPS11_ALL);
op->curr = netdev_port_features_to_ofp11(pp->curr);
op->advertised = netdev_port_features_to_ofp11(pp->advertised);
op->supported = netdev_port_features_to_ofp11(pp->supported);
op->peer = netdev_port_features_to_ofp11(pp->peer);
op->curr_speed = htonl(pp->curr_speed);
op->max_speed = htonl(pp->max_speed);
}
static void
ofputil_encode_ofp14_port_ethernet_prop(
const struct ofputil_phy_port *pp,
struct ofp14_port_desc_prop_ethernet *eth)
{
eth->curr = netdev_port_features_to_ofp11(pp->curr);
eth->advertised = netdev_port_features_to_ofp11(pp->advertised);
eth->supported = netdev_port_features_to_ofp11(pp->supported);
eth->peer = netdev_port_features_to_ofp11(pp->peer);
eth->curr_speed = htonl(pp->curr_speed);
eth->max_speed = htonl(pp->max_speed);
}
static void
ofputil_put_ofp14_port(const struct ofputil_phy_port *pp, struct ofpbuf *b)
{
struct ofp14_port *op;
struct ofp14_port_desc_prop_ethernet *eth;
ofpbuf_prealloc_tailroom(b, sizeof *op + sizeof *eth);
op = ofpbuf_put_zeros(b, sizeof *op);
op->port_no = ofputil_port_to_ofp11(pp->port_no);
op->length = htons(sizeof *op + sizeof *eth);
op->hw_addr = pp->hw_addr;
ovs_strlcpy_arrays(op->name, pp->name);
op->config = htonl(pp->config & OFPPC11_ALL);
op->state = htonl(pp->state & OFPPS11_ALL);
eth = ofpprop_put_zeros(b, OFPPDPT14_ETHERNET, sizeof *eth);
ofputil_encode_ofp14_port_ethernet_prop(pp, eth);
}
void
ofputil_put_phy_port(enum ofp_version ofp_version,
const struct ofputil_phy_port *pp, struct ofpbuf *b)
{
switch (ofp_version) {
case OFP10_VERSION: {
struct ofp10_phy_port *opp = ofpbuf_put_uninit(b, sizeof *opp);
ofputil_encode_ofp10_phy_port(pp, opp);
break;
}
case OFP11_VERSION:
case OFP12_VERSION:
case OFP13_VERSION: {
struct ofp11_port *op = ofpbuf_put_uninit(b, sizeof *op);
ofputil_encode_ofp11_port(pp, op);
break;
}
case OFP14_VERSION:
case OFP15_VERSION:
ofputil_put_ofp14_port(pp, b);
break;
default:
OVS_NOT_REACHED();
}
}
enum ofperr
ofputil_decode_port_desc_stats_request(const struct ofp_header *request,
ofp_port_t *port)
{
struct ofpbuf b = ofpbuf_const_initializer(request,
ntohs(request->length));
enum ofpraw raw = ofpraw_pull_assert(&b);
if (raw == OFPRAW_OFPST10_PORT_DESC_REQUEST) {
*port = OFPP_ANY;
return 0;
} else if (raw == OFPRAW_OFPST15_PORT_DESC_REQUEST) {
ovs_be32 *ofp11_port;
ofp11_port = ofpbuf_pull(&b, sizeof *ofp11_port);
return ofputil_port_from_ofp11(*ofp11_port, port);
} else {
OVS_NOT_REACHED();
}
}
struct ofpbuf *
ofputil_encode_port_desc_stats_request(enum ofp_version ofp_version,
ofp_port_t port)
{
struct ofpbuf *request;
switch (ofp_version) {
case OFP10_VERSION:
case OFP11_VERSION:
case OFP12_VERSION:
case OFP13_VERSION:
case OFP14_VERSION:
request = ofpraw_alloc(OFPRAW_OFPST10_PORT_DESC_REQUEST,
ofp_version, 0);
break;
case OFP15_VERSION: {
struct ofp15_port_desc_request *req;
request = ofpraw_alloc(OFPRAW_OFPST15_PORT_DESC_REQUEST,
ofp_version, 0);
req = ofpbuf_put_zeros(request, sizeof *req);
req->port_no = ofputil_port_to_ofp11(port);
break;
}
default:
OVS_NOT_REACHED();
}
return request;
}
void
ofputil_append_port_desc_stats_reply(const struct ofputil_phy_port *pp,
struct ovs_list *replies)
{
struct ofpbuf *reply = ofpbuf_from_list(ovs_list_back(replies));
size_t start_ofs = reply->size;
ofputil_put_phy_port(ofpmp_version(replies), pp, reply);
ofpmp_postappend(replies, start_ofs);
}
/* Given a buffer 'b' that contains an array of OpenFlow ports of type
* 'ofp_version', tries to pull the first element from the array. If
* successful, initializes '*pp' with an abstract representation of the
* port and returns 0. If no ports remain to be decoded, returns EOF.
* On an error, returns a positive OFPERR_* value. */
int
ofputil_pull_phy_port(enum ofp_version ofp_version, struct ofpbuf *b,
struct ofputil_phy_port *pp)
{
memset(pp, 0, sizeof *pp);
switch (ofp_version) {
case OFP10_VERSION: {
const struct ofp10_phy_port *opp = ofpbuf_try_pull(b, sizeof *opp);
return opp ? ofputil_decode_ofp10_phy_port(pp, opp) : EOF;
}
case OFP11_VERSION:
case OFP12_VERSION:
case OFP13_VERSION: {
const struct ofp11_port *op = ofpbuf_try_pull(b, sizeof *op);
return op ? ofputil_decode_ofp11_port(pp, op) : EOF;
}
case OFP14_VERSION:
case OFP15_VERSION:
return b->size ? ofputil_pull_ofp14_port(pp, b) : EOF;
default:
OVS_NOT_REACHED();
}
}
void
ofputil_phy_port_format(struct ds *s, const struct ofputil_phy_port *port)
{
char name[sizeof port->name];
int j;
memcpy(name, port->name, sizeof name);
for (j = 0; j < sizeof name - 1; j++) {
if (!isprint((unsigned char) name[j])) {
break;
}
}
name[j] = '\0';
ds_put_char(s, ' ');
ofputil_format_port(port->port_no, NULL, s);
ds_put_format(s, "(%s): addr:"ETH_ADDR_FMT"\n",
name, ETH_ADDR_ARGS(port->hw_addr));
ds_put_cstr(s, " config: ");
ofputil_port_config_format(s, port->config);
ds_put_cstr(s, " state: ");
ofputil_port_state_format(s, port->state);
if (port->curr) {
ds_put_format(s, " current: ");
netdev_features_format(s, port->curr);
}
if (port->advertised) {
ds_put_format(s, " advertised: ");
netdev_features_format(s, port->advertised);
}
if (port->supported) {
ds_put_format(s, " supported: ");
netdev_features_format(s, port->supported);
}
if (port->peer) {
ds_put_format(s, " peer: ");
netdev_features_format(s, port->peer);
}
ds_put_format(s, " speed: %"PRIu32" Mbps now, "
"%"PRIu32" Mbps max\n",
port->curr_speed / UINT32_C(1000),
port->max_speed / UINT32_C(1000));
}
/* qsort comparison function. */
static int
compare_ports(const void *a_, const void *b_)
{
const struct ofputil_phy_port *a = a_;
const struct ofputil_phy_port *b = b_;
uint16_t ap = ofp_to_u16(a->port_no);
uint16_t bp = ofp_to_u16(b->port_no);
return ap < bp ? -1 : ap > bp;
}
/* Given a buffer 'b' that contains an array of OpenFlow ports of type
* 'ofp_version', writes a detailed description of each port into 'string'. */
enum ofperr
ofputil_phy_ports_format(struct ds *string, uint8_t ofp_version,
struct ofpbuf *b)
{
struct ofputil_phy_port *ports;
size_t allocated_ports, n_ports;
int retval;
size_t i;
ports = NULL;
allocated_ports = 0;
for (n_ports = 0; ; n_ports++) {
if (n_ports >= allocated_ports) {
ports = x2nrealloc(ports, &allocated_ports, sizeof *ports);
}
retval = ofputil_pull_phy_port(ofp_version, b, &ports[n_ports]);
if (retval) {
break;
}
}
qsort(ports, n_ports, sizeof *ports, compare_ports);
for (i = 0; i < n_ports; i++) {
ofputil_phy_port_format(string, &ports[i]);
}
free(ports);
return retval != EOF ? retval : 0;
}
/* ofputil_port_status */
/* Decodes the OpenFlow "port status" message in '*ops' into an abstract form
* in '*ps'. Returns 0 if successful, otherwise an OFPERR_* value. */
enum ofperr
ofputil_decode_port_status(const struct ofp_header *oh,
struct ofputil_port_status *ps)
{
struct ofpbuf b = ofpbuf_const_initializer(oh, ntohs(oh->length));
ofpraw_pull_assert(&b);
const struct ofp_port_status *ops = ofpbuf_pull(&b, sizeof *ops);
if (ops->reason != OFPPR_ADD &&
ops->reason != OFPPR_DELETE &&
ops->reason != OFPPR_MODIFY) {
return OFPERR_NXBRC_BAD_REASON;
}
ps->reason = ops->reason;
int retval = ofputil_pull_phy_port(oh->version, &b, &ps->desc);
ovs_assert(retval != EOF);
return retval;
}
/* Converts the abstract form of a "port status" message in '*ps' into an
* OpenFlow message suitable for 'protocol', and returns that encoded form in
* a buffer owned by the caller. */
struct ofpbuf *
ofputil_encode_port_status(const struct ofputil_port_status *ps,
enum ofputil_protocol protocol)
{
struct ofp_port_status *ops;
struct ofpbuf *b;
enum ofp_version version;
enum ofpraw raw;
version = ofputil_protocol_to_ofp_version(protocol);
switch (version) {
case OFP10_VERSION:
raw = OFPRAW_OFPT10_PORT_STATUS;
break;
case OFP11_VERSION:
case OFP12_VERSION:
case OFP13_VERSION:
raw = OFPRAW_OFPT11_PORT_STATUS;
break;
case OFP14_VERSION:
case OFP15_VERSION:
raw = OFPRAW_OFPT14_PORT_STATUS;
break;
default:
OVS_NOT_REACHED();
}
b = ofpraw_alloc_xid(raw, version, htonl(0), 0);
ops = ofpbuf_put_zeros(b, sizeof *ops);
ops->reason = ps->reason;
ofputil_put_phy_port(version, &ps->desc, b);
ofpmsg_update_length(b);
return b;
}
void
ofputil_port_status_format(struct ds *s,
const struct ofputil_port_status *ps)
{
if (ps->reason == OFPPR_ADD) {
ds_put_format(s, " ADD:");
} else if (ps->reason == OFPPR_DELETE) {
ds_put_format(s, " DEL:");
} else if (ps->reason == OFPPR_MODIFY) {
ds_put_format(s, " MOD:");
}
ofputil_phy_port_format(s, &ps->desc);
}
/* ofputil_port_mod */
static enum ofperr
parse_port_mod_ethernet_property(struct ofpbuf *property,
struct ofputil_port_mod *pm)
{
ovs_be32 advertise;
enum ofperr error;
error = ofpprop_parse_be32(property, &advertise);
if (!error) {
pm->advertise = netdev_port_features_from_ofp11(advertise);
}
return error;
}
static enum ofperr
ofputil_decode_ofp10_port_mod(const struct ofp10_port_mod *opm,
struct ofputil_port_mod *pm)
{
pm->port_no = u16_to_ofp(ntohs(opm->port_no));
pm->hw_addr = opm->hw_addr;
pm->config = ntohl(opm->config) & OFPPC10_ALL;
pm->mask = ntohl(opm->mask) & OFPPC10_ALL;
pm->advertise = netdev_port_features_from_ofp10(opm->advertise);
return 0;
}
static enum ofperr
ofputil_decode_ofp11_port_mod(const struct ofp11_port_mod *opm,
struct ofputil_port_mod *pm)
{
enum ofperr error;
error = ofputil_port_from_ofp11(opm->port_no, &pm->port_no);
if (error) {
return error;
}
pm->hw_addr = opm->hw_addr;
pm->config = ntohl(opm->config) & OFPPC11_ALL;
pm->mask = ntohl(opm->mask) & OFPPC11_ALL;
pm->advertise = netdev_port_features_from_ofp11(opm->advertise);
return 0;
}
static enum ofperr
ofputil_decode_ofp14_port_mod_properties(struct ofpbuf *b, bool loose,
struct ofputil_port_mod *pm)
{
while (b->size > 0) {
struct ofpbuf property;
enum ofperr error;
uint64_t type;
error = ofpprop_pull(b, &property, &type);
if (error) {
return error;
}
switch (type) {
case OFPPMPT14_ETHERNET:
error = parse_port_mod_ethernet_property(&property, pm);
break;
default:
error = OFPPROP_UNKNOWN(loose, "port_mod", type);
break;
}
if (error) {
return error;
}
}
return 0;
}
static enum ofperr
ofputil_decode_ofp14_port_mod(struct ofpbuf *b, bool loose,
struct ofputil_port_mod *pm)
{
const struct ofp14_port_mod *opm = ofpbuf_pull(b, sizeof *opm);
enum ofperr error = ofputil_port_from_ofp11(opm->port_no, &pm->port_no);
if (error) {
return error;
}
pm->hw_addr = opm->hw_addr;
pm->config = ntohl(opm->config) & OFPPC11_ALL;
pm->mask = ntohl(opm->mask) & OFPPC11_ALL;
return ofputil_decode_ofp14_port_mod_properties(b, loose, pm);
}
/* Decodes the OpenFlow "port mod" message in '*oh' into an abstract form in
* '*pm'. Returns 0 if successful, otherwise an OFPERR_* value. */
enum ofperr
ofputil_decode_port_mod(const struct ofp_header *oh,
struct ofputil_port_mod *pm, bool loose)
{
memset(pm, 0, sizeof *pm);
struct ofpbuf b = ofpbuf_const_initializer(oh, ntohs(oh->length));
enum ofpraw raw = ofpraw_pull_assert(&b);
enum ofperr error;
if (raw == OFPRAW_OFPT10_PORT_MOD) {
error = ofputil_decode_ofp10_port_mod(b.data, pm);
} else if (raw == OFPRAW_OFPT11_PORT_MOD) {
error = ofputil_decode_ofp11_port_mod(b.data, pm);
} else if (raw == OFPRAW_OFPT14_PORT_MOD) {
error = ofputil_decode_ofp14_port_mod(&b, loose, pm);
} else {
error = OFPERR_OFPBRC_BAD_TYPE;
}
pm->config &= pm->mask;
return error;
}
/* Converts the abstract form of a "port mod" message in '*pm' into an OpenFlow
* message suitable for 'protocol', and returns that encoded form in a buffer
* owned by the caller. */
struct ofpbuf *
ofputil_encode_port_mod(const struct ofputil_port_mod *pm,
enum ofputil_protocol protocol)
{
enum ofp_version ofp_version = ofputil_protocol_to_ofp_version(protocol);
struct ofpbuf *b;
switch (ofp_version) {
case OFP10_VERSION: {
struct ofp10_port_mod *opm;
b = ofpraw_alloc(OFPRAW_OFPT10_PORT_MOD, ofp_version, 0);
opm = ofpbuf_put_zeros(b, sizeof *opm);
opm->port_no = htons(ofp_to_u16(pm->port_no));
opm->hw_addr = pm->hw_addr;
opm->config = htonl(pm->config & OFPPC10_ALL);
opm->mask = htonl(pm->mask & OFPPC10_ALL);
opm->advertise = netdev_port_features_to_ofp10(pm->advertise);
break;
}
case OFP11_VERSION:
case OFP12_VERSION:
case OFP13_VERSION: {
struct ofp11_port_mod *opm;
b = ofpraw_alloc(OFPRAW_OFPT11_PORT_MOD, ofp_version, 0);
opm = ofpbuf_put_zeros(b, sizeof *opm);
opm->port_no = ofputil_port_to_ofp11(pm->port_no);
opm->hw_addr = pm->hw_addr;
opm->config = htonl(pm->config & OFPPC11_ALL);
opm->mask = htonl(pm->mask & OFPPC11_ALL);
opm->advertise = netdev_port_features_to_ofp11(pm->advertise);
break;
}
case OFP14_VERSION:
case OFP15_VERSION: {
struct ofp14_port_mod *opm;
b = ofpraw_alloc(OFPRAW_OFPT14_PORT_MOD, ofp_version, 0);
opm = ofpbuf_put_zeros(b, sizeof *opm);
opm->port_no = ofputil_port_to_ofp11(pm->port_no);
opm->hw_addr = pm->hw_addr;
opm->config = htonl(pm->config & OFPPC11_ALL);
opm->mask = htonl(pm->mask & OFPPC11_ALL);
if (pm->advertise) {
ofpprop_put_be32(b, OFPPMPT14_ETHERNET,
netdev_port_features_to_ofp11(pm->advertise));
}
break;
}
default:
OVS_NOT_REACHED();
}
return b;
}
void
ofputil_port_mod_format(struct ds *s, const struct ofputil_port_mod *pm,
const struct ofputil_port_map *port_map)
{
ds_put_cstr(s, " port: ");
ofputil_format_port(pm->port_no, port_map, s);
ds_put_format(s, ": addr:"ETH_ADDR_FMT"\n",
ETH_ADDR_ARGS(pm->hw_addr));
ds_put_cstr(s, " config: ");
ofputil_port_config_format(s, pm->config);
ds_put_cstr(s, " mask: ");
ofputil_port_config_format(s, pm->mask);
ds_put_cstr(s, " advertise: ");
if (pm->advertise) {
netdev_features_format(s, pm->advertise);
} else {
ds_put_cstr(s, "UNCHANGED\n");
}
}
/* Encode a dump ports request for 'port', the encoded message
* will be for OpenFlow version 'ofp_version'. Returns message
* as a struct ofpbuf. Returns encoded message on success, NULL on error */
struct ofpbuf *
ofputil_encode_dump_ports_request(enum ofp_version ofp_version,
ofp_port_t port)
{
struct ofpbuf *request;
switch (ofp_version) {
case OFP10_VERSION: {
struct ofp10_port_stats_request *req;
request = ofpraw_alloc(OFPRAW_OFPST10_PORT_REQUEST, ofp_version, 0);
req = ofpbuf_put_zeros(request, sizeof *req);
req->port_no = htons(ofp_to_u16(port));
break;
}
case OFP11_VERSION:
case OFP12_VERSION:
case OFP13_VERSION:
case OFP14_VERSION:
case OFP15_VERSION: {
struct ofp11_port_stats_request *req;
request = ofpraw_alloc(OFPRAW_OFPST11_PORT_REQUEST, ofp_version, 0);
req = ofpbuf_put_zeros(request, sizeof *req);
req->port_no = ofputil_port_to_ofp11(port);
break;
}
default:
OVS_NOT_REACHED();
}
return request;
}
static void
ofputil_port_stats_to_ofp10(const struct ofputil_port_stats *ops,
struct ofp10_port_stats *ps10)
{
ps10->port_no = htons(ofp_to_u16(ops->port_no));
memset(ps10->pad, 0, sizeof ps10->pad);
put_32aligned_be64(&ps10->rx_packets, htonll(ops->stats.rx_packets));
put_32aligned_be64(&ps10->tx_packets, htonll(ops->stats.tx_packets));
put_32aligned_be64(&ps10->rx_bytes, htonll(ops->stats.rx_bytes));
put_32aligned_be64(&ps10->tx_bytes, htonll(ops->stats.tx_bytes));
put_32aligned_be64(&ps10->rx_dropped, htonll(ops->stats.rx_dropped));
put_32aligned_be64(&ps10->tx_dropped, htonll(ops->stats.tx_dropped));
put_32aligned_be64(&ps10->rx_errors, htonll(ops->stats.rx_errors));
put_32aligned_be64(&ps10->tx_errors, htonll(ops->stats.tx_errors));
put_32aligned_be64(&ps10->rx_frame_err,
htonll(ops->stats.rx_frame_errors));
put_32aligned_be64(&ps10->rx_over_err, htonll(ops->stats.rx_over_errors));
put_32aligned_be64(&ps10->rx_crc_err, htonll(ops->stats.rx_crc_errors));
put_32aligned_be64(&ps10->collisions, htonll(ops->stats.collisions));
}
static void
ofputil_port_stats_to_ofp11(const struct ofputil_port_stats *ops,
struct ofp11_port_stats *ps11)
{
ps11->port_no = ofputil_port_to_ofp11(ops->port_no);
memset(ps11->pad, 0, sizeof ps11->pad);
ps11->rx_packets = htonll(ops->stats.rx_packets);
ps11->tx_packets = htonll(ops->stats.tx_packets);
ps11->rx_bytes = htonll(ops->stats.rx_bytes);
ps11->tx_bytes = htonll(ops->stats.tx_bytes);
ps11->rx_dropped = htonll(ops->stats.rx_dropped);
ps11->tx_dropped = htonll(ops->stats.tx_dropped);
ps11->rx_errors = htonll(ops->stats.rx_errors);
ps11->tx_errors = htonll(ops->stats.tx_errors);
ps11->rx_frame_err = htonll(ops->stats.rx_frame_errors);
ps11->rx_over_err = htonll(ops->stats.rx_over_errors);
ps11->rx_crc_err = htonll(ops->stats.rx_crc_errors);
ps11->collisions = htonll(ops->stats.collisions);
}
static void
ofputil_port_stats_to_ofp13(const struct ofputil_port_stats *ops,
struct ofp13_port_stats *ps13)
{
ofputil_port_stats_to_ofp11(ops, &ps13->ps);
ps13->duration_sec = htonl(ops->duration_sec);
ps13->duration_nsec = htonl(ops->duration_nsec);
}
static void
ofputil_append_ofp14_port_stats(const struct ofputil_port_stats *ops,
struct ovs_list *replies)
{
struct ofp14_port_stats_prop_ethernet *eth;
struct intel_port_stats_rfc2819 *stats_rfc2819;
struct intel_port_custom_stats *stats_custom;
struct ofp14_port_stats *ps14;
struct ofpbuf *reply;
uint16_t i;
ovs_be64 counter_value;
size_t custom_stats_start, start_ofs;
reply = ofpbuf_from_list(ovs_list_back(replies));
start_ofs = reply->size;
ps14 = ofpbuf_put_uninit(reply, sizeof *ps14);
memset(ps14->pad, 0, sizeof ps14->pad);
ps14->port_no = ofputil_port_to_ofp11(ops->port_no);
ps14->duration_sec = htonl(ops->duration_sec);
ps14->duration_nsec = htonl(ops->duration_nsec);
ps14->rx_packets = htonll(ops->stats.rx_packets);
ps14->tx_packets = htonll(ops->stats.tx_packets);
ps14->rx_bytes = htonll(ops->stats.rx_bytes);
ps14->tx_bytes = htonll(ops->stats.tx_bytes);
ps14->rx_dropped = htonll(ops->stats.rx_dropped);
ps14->tx_dropped = htonll(ops->stats.tx_dropped);
ps14->rx_errors = htonll(ops->stats.rx_errors);
ps14->tx_errors = htonll(ops->stats.tx_errors);
eth = ofpprop_put_zeros(reply, OFPPSPT14_ETHERNET, sizeof *eth);
eth->rx_frame_err = htonll(ops->stats.rx_frame_errors);
eth->rx_over_err = htonll(ops->stats.rx_over_errors);
eth->rx_crc_err = htonll(ops->stats.rx_crc_errors);
eth->collisions = htonll(ops->stats.collisions);
uint64_t prop_type_stats = OFPPROP_EXP(INTEL_VENDOR_ID,
INTEL_PORT_STATS_RFC2819);
stats_rfc2819 = ofpprop_put_zeros(reply, prop_type_stats,
sizeof *stats_rfc2819);
memset(stats_rfc2819->pad, 0, sizeof stats_rfc2819->pad);
stats_rfc2819->rx_1_to_64_packets = htonll(ops->stats.rx_1_to_64_packets);
stats_rfc2819->rx_65_to_127_packets =
htonll(ops->stats.rx_65_to_127_packets);
stats_rfc2819->rx_128_to_255_packets =
htonll(ops->stats.rx_128_to_255_packets);
stats_rfc2819->rx_256_to_511_packets =
htonll(ops->stats.rx_256_to_511_packets);
stats_rfc2819->rx_512_to_1023_packets =
htonll(ops->stats.rx_512_to_1023_packets);
stats_rfc2819->rx_1024_to_1522_packets =
htonll(ops->stats.rx_1024_to_1522_packets);
stats_rfc2819->rx_1523_to_max_packets =
htonll(ops->stats.rx_1523_to_max_packets);
stats_rfc2819->tx_1_to_64_packets = htonll(ops->stats.tx_1_to_64_packets);
stats_rfc2819->tx_65_to_127_packets =
htonll(ops->stats.tx_65_to_127_packets);
stats_rfc2819->tx_128_to_255_packets =
htonll(ops->stats.tx_128_to_255_packets);
stats_rfc2819->tx_256_to_511_packets =
htonll(ops->stats.tx_256_to_511_packets);
stats_rfc2819->tx_512_to_1023_packets =
htonll(ops->stats.tx_512_to_1023_packets);
stats_rfc2819->tx_1024_to_1522_packets =
htonll(ops->stats.tx_1024_to_1522_packets);
stats_rfc2819->tx_1523_to_max_packets =
htonll(ops->stats.tx_1523_to_max_packets);
stats_rfc2819->tx_multicast_packets =
htonll(ops->stats.tx_multicast_packets);
stats_rfc2819->rx_broadcast_packets =
htonll(ops->stats.rx_broadcast_packets);
stats_rfc2819->tx_broadcast_packets =
htonll(ops->stats.tx_broadcast_packets);
stats_rfc2819->rx_undersized_errors =
htonll(ops->stats.rx_undersized_errors);
stats_rfc2819->rx_oversize_errors =
htonll(ops->stats.rx_oversize_errors);
stats_rfc2819->rx_fragmented_errors =
htonll(ops->stats.rx_fragmented_errors);
stats_rfc2819->rx_jabber_errors =
htonll(ops->stats.rx_jabber_errors);
if (ops->custom_stats.counters && ops->custom_stats.size) {
custom_stats_start = reply->size;
uint64_t prop_type_custom = OFPPROP_EXP(INTEL_VENDOR_ID,
INTEL_PORT_STATS_CUSTOM);
stats_custom = ofpprop_put_zeros(reply, prop_type_custom,
sizeof *stats_custom);
stats_custom->stats_array_size = htons(ops->custom_stats.size);
for (i = 0; i < ops->custom_stats.size; i++) {
uint8_t counter_size = strlen(ops->custom_stats.counters[i].name);
/* Counter name size */
ofpbuf_put(reply, &counter_size, sizeof(counter_size));
/* Counter name */
ofpbuf_put(reply, ops->custom_stats.counters[i].name,
counter_size);
/* Counter value */
counter_value = htonll(ops->custom_stats.counters[i].value);
ofpbuf_put(reply, &counter_value,
sizeof(ops->custom_stats.counters[i].value));
}
ofpprop_end(reply, custom_stats_start);
}
ps14 = ofpbuf_at_assert(reply, start_ofs, sizeof *ps14);
ps14->length = htons(reply->size - start_ofs);
ofpmp_postappend(replies, start_ofs);
}
/* Encode a ports stat for 'ops' and append it to 'replies'. */
void
ofputil_append_port_stat(struct ovs_list *replies,
const struct ofputil_port_stats *ops)
{
switch (ofpmp_version(replies)) {
case OFP13_VERSION: {
struct ofp13_port_stats *reply = ofpmp_append(replies, sizeof *reply);
ofputil_port_stats_to_ofp13(ops, reply);
break;
}
case OFP12_VERSION:
case OFP11_VERSION: {
struct ofp11_port_stats *reply = ofpmp_append(replies, sizeof *reply);
ofputil_port_stats_to_ofp11(ops, reply);
break;
}
case OFP10_VERSION: {
struct ofp10_port_stats *reply = ofpmp_append(replies, sizeof *reply);
ofputil_port_stats_to_ofp10(ops, reply);
break;
}
case OFP14_VERSION:
case OFP15_VERSION:
ofputil_append_ofp14_port_stats(ops, replies);
break;
default:
OVS_NOT_REACHED();
}
}
static enum ofperr
ofputil_port_stats_from_ofp10(struct ofputil_port_stats *ops,
const struct ofp10_port_stats *ps10)
{
ops->port_no = u16_to_ofp(ntohs(ps10->port_no));
ops->stats.rx_packets = ntohll(get_32aligned_be64(&ps10->rx_packets));
ops->stats.tx_packets = ntohll(get_32aligned_be64(&ps10->tx_packets));
ops->stats.rx_bytes = ntohll(get_32aligned_be64(&ps10->rx_bytes));
ops->stats.tx_bytes = ntohll(get_32aligned_be64(&ps10->tx_bytes));
ops->stats.rx_dropped = ntohll(get_32aligned_be64(&ps10->rx_dropped));
ops->stats.tx_dropped = ntohll(get_32aligned_be64(&ps10->tx_dropped));
ops->stats.rx_errors = ntohll(get_32aligned_be64(&ps10->rx_errors));
ops->stats.tx_errors = ntohll(get_32aligned_be64(&ps10->tx_errors));
ops->stats.rx_frame_errors =
ntohll(get_32aligned_be64(&ps10->rx_frame_err));
ops->stats.rx_over_errors = ntohll(get_32aligned_be64(&ps10->rx_over_err));
ops->stats.rx_crc_errors = ntohll(get_32aligned_be64(&ps10->rx_crc_err));
ops->stats.collisions = ntohll(get_32aligned_be64(&ps10->collisions));
ops->duration_sec = ops->duration_nsec = UINT32_MAX;
return 0;
}
static enum ofperr
ofputil_port_stats_from_ofp11(struct ofputil_port_stats *ops,
const struct ofp11_port_stats *ps11)
{
enum ofperr error;
error = ofputil_port_from_ofp11(ps11->port_no, &ops->port_no);
if (error) {
return error;
}
ops->stats.rx_packets = ntohll(ps11->rx_packets);
ops->stats.tx_packets = ntohll(ps11->tx_packets);
ops->stats.rx_bytes = ntohll(ps11->rx_bytes);
ops->stats.tx_bytes = ntohll(ps11->tx_bytes);
ops->stats.rx_dropped = ntohll(ps11->rx_dropped);
ops->stats.tx_dropped = ntohll(ps11->tx_dropped);
ops->stats.rx_errors = ntohll(ps11->rx_errors);
ops->stats.tx_errors = ntohll(ps11->tx_errors);
ops->stats.rx_frame_errors = ntohll(ps11->rx_frame_err);
ops->stats.rx_over_errors = ntohll(ps11->rx_over_err);
ops->stats.rx_crc_errors = ntohll(ps11->rx_crc_err);
ops->stats.collisions = ntohll(ps11->collisions);
ops->duration_sec = ops->duration_nsec = UINT32_MAX;
return 0;
}
static enum ofperr
ofputil_port_stats_from_ofp13(struct ofputil_port_stats *ops,
const struct ofp13_port_stats *ps13)
{
enum ofperr error = ofputil_port_stats_from_ofp11(ops, &ps13->ps);
if (!error) {
ops->duration_sec = ntohl(ps13->duration_sec);
ops->duration_nsec = ntohl(ps13->duration_nsec);
}
return error;
}
static enum ofperr
parse_ofp14_port_stats_ethernet_property(const struct ofpbuf *payload,
struct ofputil_port_stats *ops)
{
const struct ofp14_port_stats_prop_ethernet *eth = payload->data;
if (payload->size != sizeof *eth) {
return OFPERR_OFPBPC_BAD_LEN;
}
ops->stats.rx_frame_errors = ntohll(eth->rx_frame_err);
ops->stats.rx_over_errors = ntohll(eth->rx_over_err);
ops->stats.rx_crc_errors = ntohll(eth->rx_crc_err);
ops->stats.collisions = ntohll(eth->collisions);
return 0;
}
static enum ofperr
parse_intel_port_stats_rfc2819_property(const struct ofpbuf *payload,
struct ofputil_port_stats *ops)
{
const struct intel_port_stats_rfc2819 *rfc2819 = payload->data;
if (payload->size != sizeof *rfc2819) {
return OFPERR_OFPBPC_BAD_LEN;
}
ops->stats.rx_1_to_64_packets = ntohll(rfc2819->rx_1_to_64_packets);
ops->stats.rx_65_to_127_packets = ntohll(rfc2819->rx_65_to_127_packets);
ops->stats.rx_128_to_255_packets = ntohll(rfc2819->rx_128_to_255_packets);
ops->stats.rx_256_to_511_packets = ntohll(rfc2819->rx_256_to_511_packets);
ops->stats.rx_512_to_1023_packets =
ntohll(rfc2819->rx_512_to_1023_packets);
ops->stats.rx_1024_to_1522_packets =
ntohll(rfc2819->rx_1024_to_1522_packets);
ops->stats.rx_1523_to_max_packets =
ntohll(rfc2819->rx_1523_to_max_packets);
ops->stats.tx_1_to_64_packets = ntohll(rfc2819->tx_1_to_64_packets);
ops->stats.tx_65_to_127_packets = ntohll(rfc2819->tx_65_to_127_packets);
ops->stats.tx_128_to_255_packets = ntohll(rfc2819->tx_128_to_255_packets);
ops->stats.tx_256_to_511_packets = ntohll(rfc2819->tx_256_to_511_packets);
ops->stats.tx_512_to_1023_packets =
ntohll(rfc2819->tx_512_to_1023_packets);
ops->stats.tx_1024_to_1522_packets =
ntohll(rfc2819->tx_1024_to_1522_packets);
ops->stats.tx_1523_to_max_packets =
ntohll(rfc2819->tx_1523_to_max_packets);
ops->stats.tx_multicast_packets = ntohll(rfc2819->tx_multicast_packets);
ops->stats.rx_broadcast_packets = ntohll(rfc2819->rx_broadcast_packets);
ops->stats.tx_broadcast_packets = ntohll(rfc2819->tx_broadcast_packets);
ops->stats.rx_undersized_errors = ntohll(rfc2819->rx_undersized_errors);
ops->stats.rx_oversize_errors = ntohll(rfc2819->rx_oversize_errors);
ops->stats.rx_fragmented_errors = ntohll(rfc2819->rx_fragmented_errors);
ops->stats.rx_jabber_errors = ntohll(rfc2819->rx_jabber_errors);
return 0;
}
static enum ofperr
parse_intel_port_custom_property(struct ofpbuf *payload,
struct ofputil_port_stats *ops)
{
const struct intel_port_custom_stats *custom_stats
= ofpbuf_try_pull(payload, sizeof *custom_stats);
if (!custom_stats) {
return OFPERR_OFPBPC_BAD_LEN;
}
ops->custom_stats.size = ntohs(custom_stats->stats_array_size);
netdev_free_custom_stats_counters(&ops->custom_stats);
ops->custom_stats.counters = xcalloc(ops->custom_stats.size,
sizeof *ops->custom_stats.counters);
for (int i = 0; i < ops->custom_stats.size; i++) {
struct netdev_custom_counter *c = &ops->custom_stats.counters[i];
/* Counter name. */
uint8_t *name_len = ofpbuf_try_pull(payload, sizeof *name_len);
char *name = name_len ? ofpbuf_try_pull(payload, *name_len) : NULL;
if (!name_len || !name) {
netdev_free_custom_stats_counters(&ops->custom_stats);
return OFPERR_OFPBPC_BAD_LEN;
}
size_t len = MIN(*name_len, sizeof c->name - 1);
memcpy(c->name, name, len);
c->name[len] = '\0';
/* Counter value. */
ovs_be64 *value = ofpbuf_try_pull(payload, sizeof *value);
if (!value) {
netdev_free_custom_stats_counters(&ops->custom_stats);
return OFPERR_OFPBPC_BAD_LEN;
}
c->value = ntohll(get_unaligned_be64(value));
}
return 0;
}
static enum ofperr
ofputil_pull_ofp14_port_stats(struct ofputil_port_stats *ops,
struct ofpbuf *msg)
{
const struct ofp14_port_stats *ps14 = ofpbuf_try_pull(msg, sizeof *ps14);
if (!ps14) {
return OFPERR_OFPBRC_BAD_LEN;
}
size_t len = ntohs(ps14->length);
if (len < sizeof *ps14 || len - sizeof *ps14 > msg->size) {
return OFPERR_OFPBRC_BAD_LEN;
}
len -= sizeof *ps14;
enum ofperr error = ofputil_port_from_ofp11(ps14->port_no, &ops->port_no);
if (error) {
return error;
}
ops->duration_sec = ntohl(ps14->duration_sec);
ops->duration_nsec = ntohl(ps14->duration_nsec);
ops->stats.rx_packets = ntohll(ps14->rx_packets);
ops->stats.tx_packets = ntohll(ps14->tx_packets);
ops->stats.rx_bytes = ntohll(ps14->rx_bytes);
ops->stats.tx_bytes = ntohll(ps14->tx_bytes);
ops->stats.rx_dropped = ntohll(ps14->rx_dropped);
ops->stats.tx_dropped = ntohll(ps14->tx_dropped);
ops->stats.rx_errors = ntohll(ps14->rx_errors);
ops->stats.tx_errors = ntohll(ps14->tx_errors);
struct ofpbuf properties = ofpbuf_const_initializer(ofpbuf_pull(msg, len),
len);
while (properties.size > 0) {
struct ofpbuf payload;
uint64_t type = 0;
error = ofpprop_pull(&properties, &payload, &type);
if (error) {
netdev_free_custom_stats_counters(&ops->custom_stats);
return error;
}
switch (type) {
case OFPPSPT14_ETHERNET:
error = parse_ofp14_port_stats_ethernet_property(&payload, ops);
break;
case OFPPROP_EXP(INTEL_VENDOR_ID, INTEL_PORT_STATS_RFC2819):
error = parse_intel_port_stats_rfc2819_property(&payload, ops);
break;
case OFPPROP_EXP(INTEL_VENDOR_ID, INTEL_PORT_STATS_CUSTOM):
error = parse_intel_port_custom_property(&payload, ops);
break;
default:
error = OFPPROP_UNKNOWN(true, "port stats", type);
break;
}
if (error) {
netdev_free_custom_stats_counters(&ops->custom_stats);
return error;
}
}
return 0;
}
/* Returns the number of port stats elements in OFPTYPE_PORT_STATS_REPLY
* message 'oh'. */
size_t
ofputil_count_port_stats(const struct ofp_header *oh)
{
struct ofpbuf b = ofpbuf_const_initializer(oh, ntohs(oh->length));
ofpraw_pull_assert(&b);
for (size_t n = 0; ; n++) {
struct ofputil_port_stats ps;
if (ofputil_decode_port_stats(&ps, &b)) {
return n;
}
netdev_free_custom_stats_counters(&ps.custom_stats);
}
}
/* Converts an OFPST_PORT_STATS reply in 'msg' into an abstract
* ofputil_port_stats in 'ps'.
*
* Multiple OFPST_PORT_STATS replies can be packed into a single OpenFlow
* message. Calling this function multiple times for a single 'msg' iterates
* through the replies. The caller must initially leave 'msg''s layer pointers
* null and not modify them between calls.
*
* Returns 0 if successful, EOF if no replies were left in this 'msg',
* otherwise a positive errno value.
*
* On success, the caller must eventually free ps->custom_stats.counters,
* with netdev_free_custom_stats_counters(&ps->custom_stats). */
int
ofputil_decode_port_stats(struct ofputil_port_stats *ps, struct ofpbuf *msg)
{
enum ofperr error;
enum ofpraw raw;
memset(&(ps->stats), 0xFF, sizeof (ps->stats));
memset(&(ps->custom_stats), 0, sizeof (ps->custom_stats));
error = (msg->header ? ofpraw_decode(&raw, msg->header)
: ofpraw_pull(&raw, msg));
if (error) {
return error;
}
if (!msg->size) {
return EOF;
} else if (raw == OFPRAW_OFPST14_PORT_REPLY) {
return ofputil_pull_ofp14_port_stats(ps, msg);
} else if (raw == OFPRAW_OFPST13_PORT_REPLY) {
const struct ofp13_port_stats *ps13;
ps13 = ofpbuf_try_pull(msg, sizeof *ps13);
if (!ps13) {
goto bad_len;
}
return ofputil_port_stats_from_ofp13(ps, ps13);
} else if (raw == OFPRAW_OFPST11_PORT_REPLY) {
const struct ofp11_port_stats *ps11;
ps11 = ofpbuf_try_pull(msg, sizeof *ps11);
if (!ps11) {
goto bad_len;
}
return ofputil_port_stats_from_ofp11(ps, ps11);
} else if (raw == OFPRAW_OFPST10_PORT_REPLY) {
const struct ofp10_port_stats *ps10;
ps10 = ofpbuf_try_pull(msg, sizeof *ps10);
if (!ps10) {
goto bad_len;
}
return ofputil_port_stats_from_ofp10(ps, ps10);
} else {
OVS_NOT_REACHED();
}
bad_len:
VLOG_WARN_RL(&rl, "OFPST_PORT reply has %"PRIu32" leftover "
"bytes at end", msg->size);
return OFPERR_OFPBRC_BAD_LEN;
}
static void
print_port_stat(struct ds *string, const char *leader, uint64_t stat, int more)
{
ds_put_cstr(string, leader);
if (stat != UINT64_MAX) {
ds_put_format(string, "%"PRIu64, stat);
} else {
ds_put_char(string, '?');
}
if (more) {
ds_put_cstr(string, ", ");
} else {
ds_put_cstr(string, "\n");
}
}
static void
print_port_stat_cond(struct ds *string, const char *leader, uint64_t stat)
{
if (stat != UINT64_MAX) {
ds_put_format(string, "%s%"PRIu64", ", leader, stat);
}
}
void
ofputil_format_port_stats(struct ds *string,
const struct ofputil_port_stats *ps,
const struct ofputil_port_map *port_map)
{
ds_put_cstr(string, " port ");
if (ofp_to_u16(ps->port_no) < 10) {
ds_put_char(string, ' ');
}
ofputil_format_port(ps->port_no, port_map, string);
ds_put_cstr(string, ": rx ");
print_port_stat(string, "pkts=", ps->stats.rx_packets, 1);
print_port_stat(string, "bytes=", ps->stats.rx_bytes, 1);
print_port_stat(string, "drop=", ps->stats.rx_dropped, 1);
print_port_stat(string, "errs=", ps->stats.rx_errors, 1);
print_port_stat(string, "frame=", ps->stats.rx_frame_errors, 1);
print_port_stat(string, "over=", ps->stats.rx_over_errors, 1);
print_port_stat(string, "crc=", ps->stats.rx_crc_errors, 0);
ds_put_cstr(string, " tx ");
print_port_stat(string, "pkts=", ps->stats.tx_packets, 1);
print_port_stat(string, "bytes=", ps->stats.tx_bytes, 1);
print_port_stat(string, "drop=", ps->stats.tx_dropped, 1);
print_port_stat(string, "errs=", ps->stats.tx_errors, 1);
print_port_stat(string, "coll=", ps->stats.collisions, 0);
if (ps->duration_sec != UINT32_MAX) {
ds_put_cstr(string, " duration=");
ofp_print_duration(string, ps->duration_sec, ps->duration_nsec);
ds_put_char(string, '\n');
}
struct ds string_ext_stats = DS_EMPTY_INITIALIZER;
ds_init(&string_ext_stats);
print_port_stat_cond(&string_ext_stats, "1_to_64_packets=",
ps->stats.rx_1_to_64_packets);
print_port_stat_cond(&string_ext_stats, "65_to_127_packets=",
ps->stats.rx_65_to_127_packets);
print_port_stat_cond(&string_ext_stats, "128_to_255_packets=",
ps->stats.rx_128_to_255_packets);
print_port_stat_cond(&string_ext_stats, "256_to_511_packets=",
ps->stats.rx_256_to_511_packets);
print_port_stat_cond(&string_ext_stats, "512_to_1023_packets=",
ps->stats.rx_512_to_1023_packets);
print_port_stat_cond(&string_ext_stats, "1024_to_1522_packets=",
ps->stats.rx_1024_to_1522_packets);
print_port_stat_cond(&string_ext_stats, "1523_to_max_packets=",
ps->stats.rx_1523_to_max_packets);
print_port_stat_cond(&string_ext_stats, "broadcast_packets=",
ps->stats.rx_broadcast_packets);
print_port_stat_cond(&string_ext_stats, "undersized_errors=",
ps->stats.rx_undersized_errors);
print_port_stat_cond(&string_ext_stats, "oversize_errors=",
ps->stats.rx_oversize_errors);
print_port_stat_cond(&string_ext_stats, "rx_fragmented_errors=",
ps->stats.rx_fragmented_errors);
print_port_stat_cond(&string_ext_stats, "rx_jabber_errors=",
ps->stats.rx_jabber_errors);
if (string_ext_stats.length != 0) {
/* If at least one statistics counter is reported: */
ds_put_cstr(string, " rx rfc2819 ");
ds_put_buffer(string, string_ext_stats.string,
string_ext_stats.length);
ds_put_cstr(string, "\n");
ds_destroy(&string_ext_stats);
}
ds_init(&string_ext_stats);
print_port_stat_cond(&string_ext_stats, "1_to_64_packets=",
ps->stats.tx_1_to_64_packets);
print_port_stat_cond(&string_ext_stats, "65_to_127_packets=",
ps->stats.tx_65_to_127_packets);
print_port_stat_cond(&string_ext_stats, "128_to_255_packets=",
ps->stats.tx_128_to_255_packets);
print_port_stat_cond(&string_ext_stats, "256_to_511_packets=",
ps->stats.tx_256_to_511_packets);
print_port_stat_cond(&string_ext_stats, "512_to_1023_packets=",
ps->stats.tx_512_to_1023_packets);
print_port_stat_cond(&string_ext_stats, "1024_to_1522_packets=",
ps->stats.tx_1024_to_1522_packets);
print_port_stat_cond(&string_ext_stats, "1523_to_max_packets=",
ps->stats.tx_1523_to_max_packets);
print_port_stat_cond(&string_ext_stats, "multicast_packets=",
ps->stats.tx_multicast_packets);
print_port_stat_cond(&string_ext_stats, "broadcast_packets=",
ps->stats.tx_broadcast_packets);
if (string_ext_stats.length != 0) {
/* If at least one statistics counter is reported: */
ds_put_cstr(string, " tx rfc2819 ");
ds_put_buffer(string, string_ext_stats.string,
string_ext_stats.length);
ds_put_cstr(string, "\n");
ds_destroy(&string_ext_stats);
}
if (ps->custom_stats.size) {
ds_put_cstr(string, " CUSTOM Statistics");
for (int i = 0; i < ps->custom_stats.size; i++) {
/* 3 counters in the row */
if (ps->custom_stats.counters[i].name[0]) {
if (i % 3 == 0) {
ds_put_cstr(string, "\n");
ds_put_cstr(string, " ");
} else {
ds_put_char(string, ' ');
}
ds_put_format(string, "%s=%"PRIu64",",
ps->custom_stats.counters[i].name,
ps->custom_stats.counters[i].value);
}
}
ds_put_cstr(string, "\n");
}
}
/* Parse a port status request message into a 16 bit OpenFlow 1.0
* port number and stores the latter in '*ofp10_port'.
* Returns 0 if successful, otherwise an OFPERR_* number. */
enum ofperr
ofputil_decode_port_stats_request(const struct ofp_header *request,
ofp_port_t *ofp10_port)
{
switch ((enum ofp_version)request->version) {
case OFP15_VERSION:
case OFP14_VERSION:
case OFP13_VERSION:
case OFP12_VERSION:
case OFP11_VERSION: {
const struct ofp11_port_stats_request *psr11 = ofpmsg_body(request);
return ofputil_port_from_ofp11(psr11->port_no, ofp10_port);
}
case OFP10_VERSION: {
const struct ofp10_port_stats_request *psr10 = ofpmsg_body(request);
*ofp10_port = u16_to_ofp(ntohs(psr10->port_no));
return 0;
}
default:
OVS_NOT_REACHED();
}
}
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