OpenWrt – Rev 1
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/*
* swconfig.c: Switch configuration utility
*
* Copyright (C) 2008 Felix Fietkau <nbd@nbd.name>
* Copyright (C) 2010 Martin Mares <mj@ucw.cz>
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License
* version 2 as published by the Free Software Foundatio.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*/
#include <stdio.h>
#include <string.h>
#include <stdlib.h>
#include <inttypes.h>
#include <errno.h>
#include <stdint.h>
#include <getopt.h>
#include <sys/types.h>
#include <sys/socket.h>
#include <uci.h>
#include <linux/types.h>
#include <linux/netlink.h>
#include <linux/genetlink.h>
#include <netlink/netlink.h>
#include <netlink/genl/genl.h>
#include <netlink/genl/ctrl.h>
#include <linux/switch.h>
#include "swlib.h"
enum {
CMD_NONE,
CMD_GET,
CMD_SET,
CMD_LOAD,
CMD_HELP,
CMD_SHOW,
CMD_PORTMAP,
};
static void
print_attrs(const struct switch_attr *attr)
{
int i = 0;
while (attr) {
const char *type;
switch(attr->type) {
case SWITCH_TYPE_INT:
type = "int";
break;
case SWITCH_TYPE_STRING:
type = "string";
break;
case SWITCH_TYPE_PORTS:
type = "ports";
break;
case SWITCH_TYPE_NOVAL:
type = "none";
break;
default:
type = "unknown";
break;
}
printf("\tAttribute %d (%s): %s (%s)\n", ++i, type, attr->name, attr->description);
attr = attr->next;
}
}
static void
list_attributes(struct switch_dev *dev)
{
printf("%s: %s(%s), ports: %d (cpu @ %d), vlans: %d\n", dev->dev_name, dev->alias, dev->name, dev->ports, dev->cpu_port, dev->vlans);
printf(" --switch\n");
print_attrs(dev->ops);
printf(" --vlan\n");
print_attrs(dev->vlan_ops);
printf(" --port\n");
print_attrs(dev->port_ops);
}
static const char *
speed_str(int speed)
{
switch (speed) {
case 10:
return "10baseT";
case 100:
return "100baseT";
case 1000:
return "1000baseT";
default:
break;
}
return "unknown";
}
static void
print_attr_val(const struct switch_attr *attr, const struct switch_val *val)
{
struct switch_port_link *link;
int i;
switch (attr->type) {
case SWITCH_TYPE_INT:
printf("%d", val->value.i);
break;
case SWITCH_TYPE_STRING:
printf("%s", val->value.s);
break;
case SWITCH_TYPE_PORTS:
for(i = 0; i < val->len; i++) {
printf("%d%s ",
val->value.ports[i].id,
(val->value.ports[i].flags &
SWLIB_PORT_FLAG_TAGGED) ? "t" : "");
}
break;
case SWITCH_TYPE_LINK:
link = val->value.link;
if (link->link)
printf("port:%d link:up speed:%s %s-duplex %s%s%s%s%s",
val->port_vlan,
speed_str(link->speed),
link->duplex ? "full" : "half",
link->tx_flow ? "txflow " : "",
link->rx_flow ? "rxflow " : "",
link->eee & SWLIB_LINK_FLAG_EEE_100BASET ? "eee100 " : "",
link->eee & SWLIB_LINK_FLAG_EEE_1000BASET ? "eee1000 " : "",
link->aneg ? "auto" : "");
else
printf("port:%d link:down", val->port_vlan);
break;
default:
printf("?unknown-type?");
}
}
static void
show_attrs(struct switch_dev *dev, struct switch_attr *attr, struct switch_val *val)
{
while (attr) {
if (attr->type != SWITCH_TYPE_NOVAL) {
printf("\t%s: ", attr->name);
if (swlib_get_attr(dev, attr, val) < 0)
printf("???");
else
print_attr_val(attr, val);
putchar('\n');
}
attr = attr->next;
}
}
static void
show_global(struct switch_dev *dev)
{
struct switch_val val;
printf("Global attributes:\n");
show_attrs(dev, dev->ops, &val);
}
static void
show_port(struct switch_dev *dev, int port)
{
struct switch_val val;
printf("Port %d:\n", port);
val.port_vlan = port;
show_attrs(dev, dev->port_ops, &val);
}
static void
show_vlan(struct switch_dev *dev, int vlan, bool all)
{
struct switch_val val;
struct switch_attr *attr;
val.port_vlan = vlan;
if (all) {
attr = swlib_lookup_attr(dev, SWLIB_ATTR_GROUP_VLAN, "ports");
if (swlib_get_attr(dev, attr, &val) < 0)
return;
if (!val.len)
return;
}
printf("VLAN %d:\n", vlan);
show_attrs(dev, dev->vlan_ops, &val);
}
static void
print_usage(void)
{
printf("swconfig list\n");
printf("swconfig dev <dev> [port <port>|vlan <vlan>] (help|set <key> <value>|get <key>|load <config>|show)\n");
exit(1);
}
static void
swconfig_load_uci(struct switch_dev *dev, const char *name)
{
struct uci_context *ctx;
struct uci_package *p = NULL;
int ret = -1;
ctx = uci_alloc_context();
if (!ctx)
return;
uci_load(ctx, name, &p);
if (!p) {
uci_perror(ctx, "Failed to load config file: ");
goto out;
}
ret = swlib_apply_from_uci(dev, p);
if (ret < 0)
fprintf(stderr, "Failed to apply configuration for switch '%s'\n", dev->dev_name);
out:
uci_free_context(ctx);
exit(ret);
}
int main(int argc, char **argv)
{
int retval = 0;
struct switch_dev *dev;
struct switch_attr *a;
struct switch_val val;
int i;
int cmd = CMD_NONE;
char *cdev = NULL;
int cport = -1;
int cvlan = -1;
char *ckey = NULL;
char *cvalue = NULL;
char *csegment = NULL;
if((argc == 2) && !strcmp(argv[1], "list")) {
swlib_list();
return 0;
}
if(argc < 4)
print_usage();
if(strcmp(argv[1], "dev"))
print_usage();
cdev = argv[2];
for(i = 3; i < argc; i++)
{
char *arg = argv[i];
if (cmd != CMD_NONE) {
print_usage();
} else if (!strcmp(arg, "port") && i+1 < argc) {
cport = atoi(argv[++i]);
} else if (!strcmp(arg, "vlan") && i+1 < argc) {
cvlan = atoi(argv[++i]);
} else if (!strcmp(arg, "help")) {
cmd = CMD_HELP;
} else if (!strcmp(arg, "set") && i+1 < argc) {
cmd = CMD_SET;
ckey = argv[++i];
if (i+1 < argc)
cvalue = argv[++i];
} else if (!strcmp(arg, "get") && i+1 < argc) {
cmd = CMD_GET;
ckey = argv[++i];
} else if (!strcmp(arg, "load") && i+1 < argc) {
if ((cport >= 0) || (cvlan >= 0))
print_usage();
cmd = CMD_LOAD;
ckey = argv[++i];
} else if (!strcmp(arg, "portmap")) {
if (i + 1 < argc)
csegment = argv[++i];
cmd = CMD_PORTMAP;
} else if (!strcmp(arg, "show")) {
cmd = CMD_SHOW;
} else {
print_usage();
}
}
if (cmd == CMD_NONE)
print_usage();
if (cport > -1 && cvlan > -1)
print_usage();
dev = swlib_connect(cdev);
if (!dev) {
fprintf(stderr, "Failed to connect to the switch. Use the \"list\" command to see which switches are available.\n");
return 1;
}
swlib_scan(dev);
if (cmd == CMD_GET || cmd == CMD_SET) {
if(cport > -1)
a = swlib_lookup_attr(dev, SWLIB_ATTR_GROUP_PORT, ckey);
else if(cvlan > -1)
a = swlib_lookup_attr(dev, SWLIB_ATTR_GROUP_VLAN, ckey);
else
a = swlib_lookup_attr(dev, SWLIB_ATTR_GROUP_GLOBAL, ckey);
if(!a)
{
fprintf(stderr, "Unknown attribute \"%s\"\n", ckey);
retval = -1;
goto out;
}
}
switch(cmd)
{
case CMD_SET:
if ((a->type != SWITCH_TYPE_NOVAL) &&
(cvalue == NULL))
print_usage();
if(cvlan > -1)
cport = cvlan;
retval = swlib_set_attr_string(dev, a, cport, cvalue);
if (retval < 0)
{
nl_perror(-retval, "Failed to set attribute");
goto out;
}
break;
case CMD_GET:
if(cvlan > -1)
val.port_vlan = cvlan;
if(cport > -1)
val.port_vlan = cport;
retval = swlib_get_attr(dev, a, &val);
if (retval < 0)
{
nl_perror(-retval, "Failed to get attribute");
goto out;
}
print_attr_val(a, &val);
putchar('\n');
break;
case CMD_LOAD:
swconfig_load_uci(dev, ckey);
break;
case CMD_HELP:
list_attributes(dev);
break;
case CMD_PORTMAP:
swlib_print_portmap(dev, csegment);
break;
case CMD_SHOW:
if (cport >= 0 || cvlan >= 0) {
if (cport >= 0)
show_port(dev, cport);
else
show_vlan(dev, cvlan, false);
} else {
show_global(dev);
for (i=0; i < dev->ports; i++)
show_port(dev, i);
for (i=0; i < dev->vlans; i++)
show_vlan(dev, i, true);
}
break;
}
out:
swlib_free_all(dev);
return retval;
}