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dpctl.c
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/*
* Copyright (c) 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015 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 <arpa/inet.h>
#include <errno.h>
#include <inttypes.h>
#include <sys/socket.h>
#include <net/if.h>
#include <netinet/in.h>
#include <stdarg.h>
#include <stdlib.h>
#include <string.h>
#include <unistd.h>
#include "command-line.h"
#include "compiler.h"
#include "dirs.h"
#include "dpctl.h"
#include "dpif.h"
#include "dynamic-string.h"
#include "flow.h"
#include "match.h"
#include "netdev.h"
#include "netdev-dpdk.h"
#include "netlink.h"
#include "odp-util.h"
#include "ofp-parse.h"
#include "ofpbuf.h"
#include "ovs-numa.h"
#include "packets.h"
#include "shash.h"
#include "simap.h"
#include "smap.h"
#include "sset.h"
#include "timeval.h"
#include "unixctl.h"
#include "util.h"
typedef int dpctl_command_handler(int argc, const char *argv[],
struct dpctl_params *);
struct dpctl_command {
const char *name;
const char *usage;
int min_args;
int max_args;
dpctl_command_handler *handler;
};
static const struct dpctl_command *get_all_dpctl_commands(void);
static void dpctl_print(struct dpctl_params *dpctl_p, const char *fmt, ...)
OVS_PRINTF_FORMAT(2, 3);
static void dpctl_error(struct dpctl_params* dpctl_p, int err_no,
const char *fmt, ...)
OVS_PRINTF_FORMAT(3, 4);
static void
dpctl_puts(struct dpctl_params *dpctl_p, bool error, const char *string)
{
dpctl_p->output(dpctl_p->aux, error, string);
}
static void
dpctl_print(struct dpctl_params *dpctl_p, const char *fmt, ...)
{
char *string;
va_list args;
va_start(args, fmt);
string = xvasprintf(fmt, args);
va_end(args);
dpctl_puts(dpctl_p, false, string);
free(string);
}
static void
dpctl_error(struct dpctl_params* dpctl_p, int err_no, const char *fmt, ...)
{
const char *subprogram_name = get_subprogram_name();
struct ds ds = DS_EMPTY_INITIALIZER;
int save_errno = errno;
va_list args;
if (subprogram_name[0]) {
ds_put_format(&ds, "%s(%s): ", program_name,subprogram_name);
} else {
ds_put_format(&ds, "%s: ", program_name);
}
va_start(args, fmt);
ds_put_format_valist(&ds, fmt, args);
va_end(args);
if (err_no != 0) {
ds_put_format(&ds, " (%s)", ovs_retval_to_string(err_no));
}
ds_put_cstr(&ds, "\n");
dpctl_puts(dpctl_p, true, ds_cstr(&ds));
ds_destroy(&ds);
errno = save_errno;
}
static int dpctl_add_if(int argc, const char *argv[], struct dpctl_params *);
static int
if_up(struct netdev *netdev)
{
return netdev_turn_flags_on(netdev, NETDEV_UP, NULL);
}
/* Retrieve the name of the datapath if exactly one exists. The caller
* is responsible for freeing the returned string. If there is not one
* datapath, aborts with an error message. */
static char *
get_one_dp(struct dpctl_params *dpctl_p)
{
struct sset types;
const char *type;
char *dp_name = NULL;
size_t count = 0;
sset_init(&types);
dp_enumerate_types(&types);
SSET_FOR_EACH (type, &types) {
struct sset names;
sset_init(&names);
if (!dp_enumerate_names(type, &names)) {
count += sset_count(&names);
if (!dp_name && count == 1) {
dp_name = xasprintf("%s@%s", type, SSET_FIRST(&names));
}
}
sset_destroy(&names);
}
sset_destroy(&types);
if (!count) {
dpctl_error(dpctl_p, 0, "no datapaths exist");
} else if (count > 1) {
dpctl_error(dpctl_p, 0, "multiple datapaths, specify one");
free(dp_name);
dp_name = NULL;
}
return dp_name;
}
static int
parsed_dpif_open(const char *arg_, bool create, struct dpif **dpifp)
{
int result;
char *name, *type;
dp_parse_name(arg_, &name, &type);
if (create) {
result = dpif_create(name, type, dpifp);
} else {
result = dpif_open(name, type, dpifp);
}
free(name);
free(type);
return result;
}
static int
dpctl_add_dp(int argc, const char *argv[],
struct dpctl_params *dpctl_p)
{
struct dpif *dpif;
int error;
error = parsed_dpif_open(argv[1], true, &dpif);
if (error) {
dpctl_error(dpctl_p, error, "add_dp");
return error;
}
dpif_close(dpif);
if (argc > 2) {
error = dpctl_add_if(argc, argv, dpctl_p);
}
return error;
}
static int
dpctl_del_dp(int argc OVS_UNUSED, const char *argv[],
struct dpctl_params *dpctl_p)
{
struct dpif *dpif;
int error;
error = parsed_dpif_open(argv[1], false, &dpif);
if (error) {
dpctl_error(dpctl_p, error, "opening datapath");
return error;
}
error = dpif_delete(dpif);
if (error) {
dpctl_error(dpctl_p, error, "del_dp");
}
dpif_close(dpif);
return error;
}
static int
dpctl_add_if(int argc OVS_UNUSED, const char *argv[],
struct dpctl_params *dpctl_p)
{
struct dpif *dpif;
int i, error, lasterror = 0;
error = parsed_dpif_open(argv[1], false, &dpif);
if (error) {
dpctl_error(dpctl_p, error, "opening datapath");
return error;
}
for (i = 2; i < argc; i++) {
const char *name, *type;
char *save_ptr = NULL, *argcopy;
struct netdev *netdev = NULL;
struct smap args;
odp_port_t port_no = ODPP_NONE;
char *option;
argcopy = xstrdup(argv[i]);
name = strtok_r(argcopy, ",", &save_ptr);
type = "system";
if (!name) {
dpctl_error(dpctl_p, 0, "%s is not a valid network device name",
argv[i]);
error = EINVAL;
goto next;
}
smap_init(&args);
while ((option = strtok_r(NULL, ",", &save_ptr)) != NULL) {
char *save_ptr_2 = NULL;
char *key, *value;
key = strtok_r(option, "=", &save_ptr_2);
value = strtok_r(NULL, "", &save_ptr_2);
if (!value) {
value = "";
}
if (!strcmp(key, "type")) {
type = value;
} else if (!strcmp(key, "port_no")) {
port_no = u32_to_odp(atoi(value));
} else if (!smap_add_once(&args, key, value)) {
dpctl_error(dpctl_p, 0, "duplicate \"%s\" option", key);
}
}
error = netdev_open(name, type, &netdev);
if (error) {
dpctl_error(dpctl_p, error, "%s: failed to open network device",
name);
goto next_destroy_args;
}
error = netdev_set_config(netdev, &args, NULL);
if (error) {
goto next_destroy_args;
}
error = dpif_port_add(dpif, netdev, &port_no);
if (error) {
dpctl_error(dpctl_p, error, "adding %s to %s failed", name,
argv[1]);
goto next_destroy_args;
}
error = if_up(netdev);
if (error) {
dpctl_error(dpctl_p, error, "%s: failed bringing interface up",
name);
}
next_destroy_args:
netdev_close(netdev);
smap_destroy(&args);
next:
free(argcopy);
if (error) {
lasterror = error;
}
}
dpif_close(dpif);
return lasterror;
}
static int
dpctl_set_if(int argc, const char *argv[], struct dpctl_params *dpctl_p)
{
struct dpif *dpif;
int i, error, lasterror = 0;
error = parsed_dpif_open(argv[1], false, &dpif);
if (error) {
dpctl_error(dpctl_p, error, "opening datapath");
return error;
}
for (i = 2; i < argc; i++) {
struct netdev *netdev = NULL;
struct dpif_port dpif_port;
char *save_ptr = NULL;
char *type = NULL;
char *argcopy;
const char *name;
struct smap args;
odp_port_t port_no;
char *option;
int error = 0;
argcopy = xstrdup(argv[i]);
name = strtok_r(argcopy, ",", &save_ptr);
if (!name) {
dpctl_error(dpctl_p, 0, "%s is not a valid network device name",
argv[i]);
goto next;
}
/* Get the port's type from the datapath. */
error = dpif_port_query_by_name(dpif, name, &dpif_port);
if (error) {
dpctl_error(dpctl_p, error, "%s: failed to query port in %s", name,
argv[1]);
goto next;
}
type = xstrdup(dpif_port.type);
port_no = dpif_port.port_no;
dpif_port_destroy(&dpif_port);
/* Retrieve its existing configuration. */
error = netdev_open(name, type, &netdev);
if (error) {
dpctl_error(dpctl_p, error, "%s: failed to open network device",
name);
goto next;
}
smap_init(&args);
error = netdev_get_config(netdev, &args);
if (error) {
dpctl_error(dpctl_p, error, "%s: failed to fetch configuration",
name);
goto next_destroy_args;
}
/* Parse changes to configuration. */
while ((option = strtok_r(NULL, ",", &save_ptr)) != NULL) {
char *save_ptr_2 = NULL;
char *key, *value;
key = strtok_r(option, "=", &save_ptr_2);
value = strtok_r(NULL, "", &save_ptr_2);
if (!value) {
value = "";
}
if (!strcmp(key, "type")) {
if (strcmp(value, type)) {
dpctl_error(dpctl_p, 0,
"%s: can't change type from %s to %s",
name, type, value);
error = EINVAL;
goto next_destroy_args;
}
} else if (!strcmp(key, "port_no")) {
if (port_no != u32_to_odp(atoi(value))) {
dpctl_error(dpctl_p, 0, "%s: can't change port number from"
" %"PRIu32" to %d", name, port_no, atoi(value));
error = EINVAL;
goto next_destroy_args;
}
} else if (value[0] == '\0') {
smap_remove(&args, key);
} else {
smap_replace(&args, key, value);
}
}
/* Update configuration. */
char *err_s = NULL;
error = netdev_set_config(netdev, &args, &err_s);
if (err_s || error) {
dpctl_error(dpctl_p, error, "%s",
err_s ? err_s : "Error updating configuration");
free(err_s);
}
if (error) {
goto next_destroy_args;
}
next_destroy_args:
smap_destroy(&args);
next:
netdev_close(netdev);
free(type);
free(argcopy);
if (error) {
lasterror = error;
}
}
dpif_close(dpif);
return lasterror;
}
static bool
get_port_number(struct dpif *dpif, const char *name, odp_port_t *port,
struct dpctl_params *dpctl_p)
{
struct dpif_port dpif_port;
if (!dpif_port_query_by_name(dpif, name, &dpif_port)) {
*port = dpif_port.port_no;
dpif_port_destroy(&dpif_port);
return true;
} else {
dpctl_error(dpctl_p, 0, "no port named %s", name);
return false;
}
}
static int
dpctl_del_if(int argc, const char *argv[], struct dpctl_params *dpctl_p)
{
struct dpif *dpif;
int i, error, lasterror = 0;
error = parsed_dpif_open(argv[1], false, &dpif);
if (error) {
dpctl_error(dpctl_p, error, "opening datapath");
return error;
}
for (i = 2; i < argc; i++) {
const char *name = argv[i];
odp_port_t port;
if (!name[strspn(name, "0123456789")]) {
port = u32_to_odp(atoi(name));
} else if (!get_port_number(dpif, name, &port, dpctl_p)) {
lasterror = ENOENT;
continue;
}
error = dpif_port_del(dpif, port);
if (error) {
dpctl_error(dpctl_p, error, "deleting port %s from %s failed",
name, argv[1]);
lasterror = error;
}
}
dpif_close(dpif);
return lasterror;
}
static void
print_stat(struct dpctl_params *dpctl_p, const char *leader, uint64_t value)
{
dpctl_print(dpctl_p, "%s", leader);
if (value != UINT64_MAX) {
dpctl_print(dpctl_p, "%"PRIu64, value);
} else {
dpctl_print(dpctl_p, "?");
}
}
static void
print_human_size(struct dpctl_params *dpctl_p, uint64_t value)
{
if (value == UINT64_MAX) {
/* Nothing to do. */
} else if (value >= 1024ULL * 1024 * 1024 * 1024) {
dpctl_print(dpctl_p, " (%.1f TiB)",
value / (1024.0 * 1024 * 1024 * 1024));
} else if (value >= 1024ULL * 1024 * 1024) {
dpctl_print(dpctl_p, " (%.1f GiB)", value / (1024.0 * 1024 * 1024));
} else if (value >= 1024ULL * 1024) {
dpctl_print(dpctl_p, " (%.1f MiB)", value / (1024.0 * 1024));
} else if (value >= 1024) {
dpctl_print(dpctl_p, " (%.1f KiB)", value / 1024.0);
}
}
static void
show_dpif(struct dpif *dpif, struct dpctl_params *dpctl_p)
{
struct dpif_port_dump dump;
struct dpif_port dpif_port;
struct dpif_dp_stats stats;
struct netdev *netdev;
dpctl_print(dpctl_p, "%s:\n", dpif_name(dpif));
if (!dpif_get_dp_stats(dpif, &stats)) {
dpctl_print(dpctl_p, "\tlookups: hit:%"PRIu64" missed:%"PRIu64
" lost:%"PRIu64"\n\tflows: %"PRIu64"\n",
stats.n_hit, stats.n_missed, stats.n_lost, stats.n_flows);
if (stats.n_masks != UINT32_MAX) {
uint64_t n_pkts = stats.n_hit + stats.n_missed;
double avg = n_pkts ? (double) stats.n_mask_hit / n_pkts : 0.0;
dpctl_print(dpctl_p, "\tmasks: hit:%"PRIu64" total:%"PRIu32
" hit/pkt:%.2f\n",
stats.n_mask_hit, stats.n_masks, avg);
}
}
DPIF_PORT_FOR_EACH (&dpif_port, &dump, dpif) {
dpctl_print(dpctl_p, "\tport %u: %s",
dpif_port.port_no, dpif_port.name);
if (strcmp(dpif_port.type, "system")) {
int error;
dpctl_print(dpctl_p, " (%s", dpif_port.type);
error = netdev_open(dpif_port.name, dpif_port.type, &netdev);
if (!error) {
struct smap config;
smap_init(&config);
error = netdev_get_config(netdev, &config);
if (!error) {
const struct smap_node **nodes;
size_t i;
nodes = smap_sort(&config);
for (i = 0; i < smap_count(&config); i++) {
const struct smap_node *node = nodes[i];
dpctl_print(dpctl_p, "%c %s=%s", i ? ',' : ':',
node->key, node->value);
}
free(nodes);
} else {
dpctl_print(dpctl_p, ", could not retrieve configuration "
"(%s)", ovs_strerror(error));
}
smap_destroy(&config);
netdev_close(netdev);
} else {
dpctl_print(dpctl_p, ": open failed (%s)",
ovs_strerror(error));
}
dpctl_print(dpctl_p, ")");
}
dpctl_print(dpctl_p, "\n");
if (dpctl_p->print_statistics) {
struct netdev_stats s;
int error;
error = netdev_open(dpif_port.name, dpif_port.type, &netdev);
if (error) {
dpctl_print(dpctl_p, ", open failed (%s)",
ovs_strerror(error));
continue;
}
error = netdev_get_stats(netdev, &s);
if (!error) {
netdev_close(netdev);
print_stat(dpctl_p, "\t\tRX packets:", s.rx_packets);
print_stat(dpctl_p, " errors:", s.rx_errors);
print_stat(dpctl_p, " dropped:", s.rx_dropped);
print_stat(dpctl_p, " overruns:", s.rx_over_errors);
print_stat(dpctl_p, " frame:", s.rx_frame_errors);
dpctl_print(dpctl_p, "\n");
print_stat(dpctl_p, "\t\tTX packets:", s.tx_packets);
print_stat(dpctl_p, " errors:", s.tx_errors);
print_stat(dpctl_p, " dropped:", s.tx_dropped);
print_stat(dpctl_p, " aborted:", s.tx_aborted_errors);
print_stat(dpctl_p, " carrier:", s.tx_carrier_errors);
dpctl_print(dpctl_p, "\n");
print_stat(dpctl_p, "\t\tcollisions:", s.collisions);
dpctl_print(dpctl_p, "\n");
print_stat(dpctl_p, "\t\tRX bytes:", s.rx_bytes);
print_human_size(dpctl_p, s.rx_bytes);
print_stat(dpctl_p, " TX bytes:", s.tx_bytes);
print_human_size(dpctl_p, s.tx_bytes);
dpctl_print(dpctl_p, "\n");
} else {
dpctl_print(dpctl_p, ", could not retrieve stats (%s)",
ovs_strerror(error));
}
}
}
}
typedef void (*dps_for_each_cb)(struct dpif *, struct dpctl_params *);
static int
dps_for_each(struct dpctl_params *dpctl_p, dps_for_each_cb cb)
{
struct sset dpif_names = SSET_INITIALIZER(&dpif_names),
dpif_types = SSET_INITIALIZER(&dpif_types);
int error, openerror = 0, enumerror = 0;
const char *type, *name;
bool at_least_one = false;
dp_enumerate_types(&dpif_types);
SSET_FOR_EACH (type, &dpif_types) {
error = dp_enumerate_names(type, &dpif_names);
if (error) {
enumerror = error;
}
SSET_FOR_EACH (name, &dpif_names) {
struct dpif *dpif;
at_least_one = true;
error = dpif_open(name, type, &dpif);
if (!error) {
cb(dpif, dpctl_p);
dpif_close(dpif);
} else {
openerror = error;
dpctl_error(dpctl_p, error, "opening datapath %s failed",
name);
}
}
}
sset_destroy(&dpif_names);
sset_destroy(&dpif_types);
/* If there has been an error while opening a datapath it should be
* reported. Otherwise, we want to ignore the errors generated by
* dp_enumerate_names() if at least one datapath has been discovered,
* because they're not interesting for the user. This happens, for
* example, if OVS is using a userspace datapath and the kernel module
* is not loaded. */
if (openerror) {
return openerror;
} else {
return at_least_one ? 0 : enumerror;
}
}
static int
dpctl_show(int argc, const char *argv[], struct dpctl_params *dpctl_p)
{
int error, lasterror = 0;
if (argc > 1) {
int i;
for (i = 1; i < argc; i++) {
const char *name = argv[i];
struct dpif *dpif;
error = parsed_dpif_open(name, false, &dpif);
if (!error) {
show_dpif(dpif, dpctl_p);
dpif_close(dpif);
} else {
dpctl_error(dpctl_p, error, "opening datapath %s failed",
name);
lasterror = error;
}
}
} else {
lasterror = dps_for_each(dpctl_p, show_dpif);
}
return lasterror;
}
static void
dump_cb(struct dpif *dpif, struct dpctl_params *dpctl_p)
{
dpctl_print(dpctl_p, "%s\n", dpif_name(dpif));
}
static int
dpctl_dump_dps(int argc OVS_UNUSED, const char *argv[] OVS_UNUSED,
struct dpctl_params *dpctl_p)
{
return dps_for_each(dpctl_p, dump_cb);
}
static void
format_dpif_flow(struct ds *ds, const struct dpif_flow *f, struct hmap *ports,
struct dpctl_params *dpctl_p)
{
if (dpctl_p->verbosity) {
if (f->ufid_present) {
odp_format_ufid(&f->ufid, ds);
ds_put_cstr(ds, ", ");
} else {
ds_put_cstr(ds, "ufid:<empty>, ");
}
}
odp_flow_format(f->key, f->key_len, f->mask, f->mask_len, ports, ds,
dpctl_p->verbosity);
ds_put_cstr(ds, ", ");
dpif_flow_stats_format(&f->stats, ds);
ds_put_cstr(ds, ", actions:");
format_odp_actions(ds, f->actions, f->actions_len);
}
static int
dpctl_dump_flows(int argc, const char *argv[], struct dpctl_params *dpctl_p)
{
struct dpif *dpif;
struct ds ds;
char *name;
char *filter = NULL;
struct flow flow_filter;
struct flow_wildcards wc_filter;
struct dpif_port_dump port_dump;
struct dpif_port dpif_port;
struct hmap portno_names;
struct simap names_portno;
struct dpif_flow_dump_thread *flow_dump_thread;
struct dpif_flow_dump *flow_dump;
struct dpif_flow f;
int pmd_id = PMD_ID_NULL;
int error;
if (argc > 1 && !strncmp(argv[argc - 1], "filter=", 7)) {
filter = xstrdup(argv[--argc] + 7);
}
name = (argc == 2) ? xstrdup(argv[1]) : get_one_dp(dpctl_p);
if (!name) {
error = EINVAL;
goto out_freefilter;
}
error = parsed_dpif_open(name, false, &dpif);
free(name);
if (error) {
dpctl_error(dpctl_p, error, "opening datapath");
goto out_freefilter;
}
hmap_init(&portno_names);
simap_init(&names_portno);
DPIF_PORT_FOR_EACH (&dpif_port, &port_dump, dpif) {
odp_portno_names_set(&portno_names, dpif_port.port_no, dpif_port.name);
simap_put(&names_portno, dpif_port.name,
odp_to_u32(dpif_port.port_no));
}
if (filter) {
char *err = parse_ofp_exact_flow(&flow_filter, &wc_filter.masks,
filter, &names_portno);
if (err) {
dpctl_error(dpctl_p, 0, "Failed to parse filter (%s)", err);
error = EINVAL;
goto out_dpifclose;
}
}
ds_init(&ds);
flow_dump = dpif_flow_dump_create(dpif, false);
flow_dump_thread = dpif_flow_dump_thread_create(flow_dump);
while (dpif_flow_dump_next(flow_dump_thread, &f, 1)) {
if (filter) {
struct flow flow;
struct flow_wildcards wc;
struct match match, match_filter;
struct minimatch minimatch;
odp_flow_key_to_flow(f.key, f.key_len, &flow);
odp_flow_key_to_mask(f.mask, f.mask_len, &wc.masks, &flow);
match_init(&match, &flow, &wc);
match_init(&match_filter, &flow_filter, &wc);
match_init(&match_filter, &match_filter.flow, &wc_filter);
minimatch_init(&minimatch, &match_filter);
if (!minimatch_matches_flow(&minimatch, &match.flow)) {
minimatch_destroy(&minimatch);
continue;
}
minimatch_destroy(&minimatch);
}
ds_clear(&ds);
/* If 'pmd_id' is specified, overlapping flows could be dumped from
* different pmd threads. So, separates dumps from different pmds
* by printing a title line. */
if (pmd_id != f.pmd_id) {
if (f.pmd_id == NON_PMD_CORE_ID) {
ds_put_format(&ds, "flow-dump from non-dpdk interfaces:\n");
} else {
ds_put_format(&ds, "flow-dump from pmd on cpu core: %d\n",
f.pmd_id);
}
pmd_id = f.pmd_id;
}
format_dpif_flow(&ds, &f, &portno_names, dpctl_p);
dpctl_print(dpctl_p, "%s\n", ds_cstr(&ds));
}
dpif_flow_dump_thread_destroy(flow_dump_thread);
error = dpif_flow_dump_destroy(flow_dump);
if (error) {
dpctl_error(dpctl_p, error, "Failed to dump flows from datapath");
}
ds_destroy(&ds);
out_dpifclose:
odp_portno_names_destroy(&portno_names);
simap_destroy(&names_portno);
hmap_destroy(&portno_names);
dpif_close(dpif);
out_freefilter:
free(filter);
return error;
}
/* Extracts the in_port from the parsed keys, and returns the reference
* to the 'struct netdev *' of the dpif port. On error, returns NULL.
* Users must call 'netdev_close()' after finish using the returned
* reference. */
static struct netdev *
get_in_port_netdev_from_key(struct dpif *dpif, const struct ofpbuf *key)
{
const struct nlattr *in_port_nla;
struct netdev *dev = NULL;
in_port_nla = nl_attr_find(key, 0, OVS_KEY_ATTR_IN_PORT);
if (in_port_nla) {
struct dpif_port dpif_port;
odp_port_t port_no;
int error;
port_no = ODP_PORT_C(nl_attr_get_u32(in_port_nla));
error = dpif_port_query_by_number(dpif, port_no, &dpif_port);
if (error) {
goto out;
}
netdev_open(dpif_port.name, dpif_port.type, &dev);
dpif_port_destroy(&dpif_port);
}
out:
return dev;
}
static int
dpctl_put_flow(int argc, const char *argv[], enum dpif_flow_put_flags flags,
struct dpctl_params *dpctl_p)
{
const char *key_s = argv[argc - 2];
const char *actions_s = argv[argc - 1];
struct netdev *in_port_netdev = NULL;
struct dpif_flow_stats stats;
struct dpif_port dpif_port;
struct dpif_port_dump port_dump;
struct ofpbuf actions;
struct ofpbuf key;
struct ofpbuf mask;
struct dpif *dpif;
ovs_u128 ufid;
bool ufid_present;
char *dp_name;
struct simap port_names;
int n, error;
dp_name = argc == 4 ? xstrdup(argv[1]) : get_one_dp(dpctl_p);
if (!dp_name) {
return EINVAL;
}
error = parsed_dpif_open(dp_name, false, &dpif);
free(dp_name);
if (error) {
dpctl_error(dpctl_p, error, "opening datapath");
return error;
}
ufid_present = false;
n = odp_ufid_from_string(key_s, &ufid);
if (n < 0) {
dpctl_error(dpctl_p, -n, "parsing flow ufid");
return -n;
} else if (n) {
key_s += n;
ufid_present = true;
}
simap_init(&port_names);
DPIF_PORT_FOR_EACH (&dpif_port, &port_dump, dpif) {
simap_put(&port_names, dpif_port.name, odp_to_u32(dpif_port.port_no));
}
ofpbuf_init(&key, 0);
ofpbuf_init(&mask, 0);
error = odp_flow_from_string(key_s, &port_names, &key, &mask);
simap_destroy(&port_names);
if (error) {
dpctl_error(dpctl_p, error, "parsing flow key");
goto out_freekeymask;
}
ofpbuf_init(&actions, 0);
error = odp_actions_from_string(actions_s, NULL, &actions);
if (error) {
dpctl_error(dpctl_p, error, "parsing actions");
goto out_freeactions;
}
/* For DPDK interface, applies the operation to all pmd threads
* on the same numa node. */
in_port_netdev = get_in_port_netdev_from_key(dpif, &key);
if (in_port_netdev && netdev_is_pmd(in_port_netdev)) {
int numa_id;
numa_id = netdev_get_numa_id(in_port_netdev);
if (ovs_numa_numa_id_is_valid(numa_id)) {
struct ovs_numa_dump *dump = ovs_numa_dump_cores_on_numa(numa_id);
struct ovs_numa_info *iter;
FOR_EACH_CORE_ON_NUMA (iter, dump) {
if (ovs_numa_core_is_pinned(iter->core_id)) {
error = dpif_flow_put(dpif, flags,
key.data, key.size,
mask.size == 0 ? NULL : mask.data,
mask.size, actions.data,
actions.size, ufid_present ? &ufid : NULL,
iter->core_id, dpctl_p->print_statistics ? &stats : NULL);
}
}
ovs_numa_dump_destroy(dump);
} else {
error = EINVAL;
}
} else {
error = dpif_flow_put(dpif, flags,
key.data, key.size,
mask.size == 0 ? NULL : mask.data,
mask.size, actions.data,
actions.size, ufid_present ? &ufid : NULL,
PMD_ID_NULL, dpctl_p->print_statistics ? &stats : NULL);
}
if (error) {
dpctl_error(dpctl_p, error, "updating flow table");
goto out_freeactions;
}
if (dpctl_p->print_statistics) {
struct ds s;
ds_init(&s);
dpif_flow_stats_format(&stats, &s);
dpctl_print(dpctl_p, "%s\n", ds_cstr(&s));
ds_destroy(&s);
}
out_freeactions:
ofpbuf_uninit(&actions);
out_freekeymask:
ofpbuf_uninit(&mask);
ofpbuf_uninit(&key);
dpif_close(dpif);
netdev_close(in_port_netdev);
return error;
}
static int
dpctl_add_flow(int argc, const char *argv[], struct dpctl_params *dpctl_p)
{
return dpctl_put_flow(argc, argv, DPIF_FP_CREATE, dpctl_p);
}
static int
dpctl_mod_flow(int argc, const char *argv[], struct dpctl_params *dpctl_p)