You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
276 lines
6.8 KiB
276 lines
6.8 KiB
/*
|
|
* iplink_vlan.c VLAN device support
|
|
*
|
|
* This program is free software; you can redistribute it and/or
|
|
* modify it under the terms of the GNU General Public License
|
|
* as published by the Free Software Foundation; either version
|
|
* 2 of the License, or (at your option) any later version.
|
|
*
|
|
* Authors: Patrick McHardy <kaber@trash.net>
|
|
*/
|
|
|
|
#include <stdio.h>
|
|
#include <stdlib.h>
|
|
#include <string.h>
|
|
#include <linux/if_vlan.h>
|
|
|
|
#include "rt_names.h"
|
|
#include "utils.h"
|
|
#include "ip_common.h"
|
|
|
|
static void print_explain(FILE *f)
|
|
{
|
|
fprintf(f,
|
|
"Usage: ... vlan id VLANID\n"
|
|
" [ protocol VLANPROTO ]\n"
|
|
" [ reorder_hdr { on | off } ]\n"
|
|
" [ gvrp { on | off } ]\n"
|
|
" [ mvrp { on | off } ]\n"
|
|
" [ loose_binding { on | off } ]\n"
|
|
" [ ingress-qos-map QOS-MAP ]\n"
|
|
" [ egress-qos-map QOS-MAP ]\n"
|
|
"\n"
|
|
"VLANID := 0-4095\n"
|
|
"VLANPROTO: [ 802.1Q / 802.1ad ]\n"
|
|
"QOS-MAP := [ QOS-MAP ] QOS-MAPPING\n"
|
|
"QOS-MAPPING := FROM:TO\n"
|
|
);
|
|
}
|
|
|
|
static void explain(void)
|
|
{
|
|
print_explain(stderr);
|
|
}
|
|
|
|
static int on_off(const char *msg, const char *arg)
|
|
{
|
|
fprintf(stderr, "Error: argument of \"%s\" must be \"on\" or \"off\", not \"%s\"\n", msg, arg);
|
|
return -1;
|
|
}
|
|
|
|
static int vlan_parse_qos_map(int *argcp, char ***argvp, struct nlmsghdr *n,
|
|
int attrtype)
|
|
{
|
|
int argc = *argcp;
|
|
char **argv = *argvp;
|
|
struct ifla_vlan_qos_mapping m;
|
|
struct rtattr *tail;
|
|
|
|
tail = NLMSG_TAIL(n);
|
|
addattr_l(n, 1024, attrtype, NULL, 0);
|
|
|
|
while (argc > 0) {
|
|
char *colon = strchr(*argv, ':');
|
|
|
|
if (!colon)
|
|
break;
|
|
*colon = '\0';
|
|
|
|
if (get_u32(&m.from, *argv, 0))
|
|
return 1;
|
|
if (get_u32(&m.to, colon + 1, 0))
|
|
return 1;
|
|
argc--, argv++;
|
|
|
|
addattr_l(n, 1024, IFLA_VLAN_QOS_MAPPING, &m, sizeof(m));
|
|
}
|
|
|
|
tail->rta_len = (void *) NLMSG_TAIL(n) - (void *)tail;
|
|
|
|
*argcp = argc;
|
|
*argvp = argv;
|
|
return 0;
|
|
}
|
|
|
|
static int vlan_parse_opt(struct link_util *lu, int argc, char **argv,
|
|
struct nlmsghdr *n)
|
|
{
|
|
struct ifla_vlan_flags flags = { 0 };
|
|
__u16 id, proto;
|
|
|
|
while (argc > 0) {
|
|
if (matches(*argv, "protocol") == 0) {
|
|
NEXT_ARG();
|
|
if (ll_proto_a2n(&proto, *argv))
|
|
invarg("protocol is invalid", *argv);
|
|
addattr_l(n, 1024, IFLA_VLAN_PROTOCOL, &proto, 2);
|
|
} else if (matches(*argv, "id") == 0) {
|
|
NEXT_ARG();
|
|
if (get_u16(&id, *argv, 0))
|
|
invarg("id is invalid", *argv);
|
|
addattr_l(n, 1024, IFLA_VLAN_ID, &id, 2);
|
|
} else if (matches(*argv, "reorder_hdr") == 0) {
|
|
NEXT_ARG();
|
|
flags.mask |= VLAN_FLAG_REORDER_HDR;
|
|
if (strcmp(*argv, "on") == 0)
|
|
flags.flags |= VLAN_FLAG_REORDER_HDR;
|
|
else if (strcmp(*argv, "off") == 0)
|
|
flags.flags &= ~VLAN_FLAG_REORDER_HDR;
|
|
else
|
|
return on_off("reorder_hdr", *argv);
|
|
} else if (matches(*argv, "gvrp") == 0) {
|
|
NEXT_ARG();
|
|
flags.mask |= VLAN_FLAG_GVRP;
|
|
if (strcmp(*argv, "on") == 0)
|
|
flags.flags |= VLAN_FLAG_GVRP;
|
|
else if (strcmp(*argv, "off") == 0)
|
|
flags.flags &= ~VLAN_FLAG_GVRP;
|
|
else
|
|
return on_off("gvrp", *argv);
|
|
} else if (matches(*argv, "mvrp") == 0) {
|
|
NEXT_ARG();
|
|
flags.mask |= VLAN_FLAG_MVRP;
|
|
if (strcmp(*argv, "on") == 0)
|
|
flags.flags |= VLAN_FLAG_MVRP;
|
|
else if (strcmp(*argv, "off") == 0)
|
|
flags.flags &= ~VLAN_FLAG_MVRP;
|
|
else
|
|
return on_off("mvrp", *argv);
|
|
} else if (matches(*argv, "loose_binding") == 0) {
|
|
NEXT_ARG();
|
|
flags.mask |= VLAN_FLAG_LOOSE_BINDING;
|
|
if (strcmp(*argv, "on") == 0)
|
|
flags.flags |= VLAN_FLAG_LOOSE_BINDING;
|
|
else if (strcmp(*argv, "off") == 0)
|
|
flags.flags &= ~VLAN_FLAG_LOOSE_BINDING;
|
|
else
|
|
return on_off("loose_binding", *argv);
|
|
} else if (matches(*argv, "ingress-qos-map") == 0) {
|
|
NEXT_ARG();
|
|
if (vlan_parse_qos_map(&argc, &argv, n,
|
|
IFLA_VLAN_INGRESS_QOS))
|
|
invarg("invalid ingress-qos-map", *argv);
|
|
continue;
|
|
} else if (matches(*argv, "egress-qos-map") == 0) {
|
|
NEXT_ARG();
|
|
if (vlan_parse_qos_map(&argc, &argv, n,
|
|
IFLA_VLAN_EGRESS_QOS))
|
|
invarg("invalid egress-qos-map", *argv);
|
|
continue;
|
|
} else if (matches(*argv, "help") == 0) {
|
|
explain();
|
|
return -1;
|
|
} else {
|
|
fprintf(stderr, "vlan: unknown command \"%s\"?\n", *argv);
|
|
explain();
|
|
return -1;
|
|
}
|
|
argc--, argv++;
|
|
}
|
|
|
|
if (flags.mask)
|
|
addattr_l(n, 1024, IFLA_VLAN_FLAGS, &flags, sizeof(flags));
|
|
|
|
return 0;
|
|
}
|
|
|
|
static void vlan_print_map(FILE *f,
|
|
const char *name_json,
|
|
const char *name_fp,
|
|
struct rtattr *attr)
|
|
{
|
|
struct ifla_vlan_qos_mapping *m;
|
|
struct rtattr *i;
|
|
int rem;
|
|
|
|
open_json_array(PRINT_JSON, name_json);
|
|
print_string(PRINT_FP, NULL, "\n %s { ", name_fp);
|
|
|
|
rem = RTA_PAYLOAD(attr);
|
|
for (i = RTA_DATA(attr); RTA_OK(i, rem); i = RTA_NEXT(i, rem)) {
|
|
m = RTA_DATA(i);
|
|
|
|
if (is_json_context()) {
|
|
open_json_object(NULL);
|
|
print_uint(PRINT_JSON, "from", NULL, m->from);
|
|
print_uint(PRINT_JSON, "to", NULL, m->to);
|
|
close_json_object();
|
|
} else {
|
|
fprintf(f, "%u:%u ", m->from, m->to);
|
|
}
|
|
}
|
|
|
|
close_json_array(PRINT_JSON, NULL);
|
|
print_string(PRINT_FP, NULL, "%s ", "}");
|
|
}
|
|
|
|
static void vlan_print_flags(FILE *fp, __u32 flags)
|
|
{
|
|
open_json_array(PRINT_ANY, is_json_context() ? "flags" : "<");
|
|
#define _PF(f) if (flags & VLAN_FLAG_##f) { \
|
|
flags &= ~VLAN_FLAG_##f; \
|
|
print_string(PRINT_ANY, NULL, flags ? "%s," : "%s", #f); \
|
|
}
|
|
_PF(REORDER_HDR);
|
|
_PF(GVRP);
|
|
_PF(MVRP);
|
|
_PF(LOOSE_BINDING);
|
|
#undef _PF
|
|
if (flags)
|
|
print_hex(PRINT_ANY, NULL, "%x", flags);
|
|
close_json_array(PRINT_ANY, "> ");
|
|
}
|
|
|
|
static void vlan_print_opt(struct link_util *lu, FILE *f, struct rtattr *tb[])
|
|
{
|
|
struct ifla_vlan_flags *flags;
|
|
|
|
SPRINT_BUF(b1);
|
|
|
|
if (!tb)
|
|
return;
|
|
|
|
if (tb[IFLA_VLAN_PROTOCOL] &&
|
|
RTA_PAYLOAD(tb[IFLA_VLAN_PROTOCOL]) < sizeof(__u16))
|
|
return;
|
|
if (!tb[IFLA_VLAN_ID] ||
|
|
RTA_PAYLOAD(tb[IFLA_VLAN_ID]) < sizeof(__u16))
|
|
return;
|
|
|
|
if (tb[IFLA_VLAN_PROTOCOL])
|
|
print_string(PRINT_ANY,
|
|
"protocol",
|
|
"protocol %s ",
|
|
ll_proto_n2a(
|
|
rta_getattr_u16(tb[IFLA_VLAN_PROTOCOL]),
|
|
b1, sizeof(b1)));
|
|
else
|
|
print_string(PRINT_ANY, "protocol", "protocol %s ", "802.1q");
|
|
|
|
print_uint(PRINT_ANY,
|
|
"id",
|
|
"id %u ",
|
|
rta_getattr_u16(tb[IFLA_VLAN_ID]));
|
|
|
|
if (tb[IFLA_VLAN_FLAGS]) {
|
|
if (RTA_PAYLOAD(tb[IFLA_VLAN_FLAGS]) < sizeof(*flags))
|
|
return;
|
|
flags = RTA_DATA(tb[IFLA_VLAN_FLAGS]);
|
|
vlan_print_flags(f, flags->flags);
|
|
}
|
|
if (tb[IFLA_VLAN_INGRESS_QOS])
|
|
vlan_print_map(f,
|
|
"ingress_qos",
|
|
"ingress-qos-map",
|
|
tb[IFLA_VLAN_INGRESS_QOS]);
|
|
if (tb[IFLA_VLAN_EGRESS_QOS])
|
|
vlan_print_map(f,
|
|
"egress_qos",
|
|
"egress-qos-map",
|
|
tb[IFLA_VLAN_EGRESS_QOS]);
|
|
}
|
|
|
|
static void vlan_print_help(struct link_util *lu, int argc, char **argv,
|
|
FILE *f)
|
|
{
|
|
print_explain(f);
|
|
}
|
|
|
|
struct link_util vlan_link_util = {
|
|
.id = "vlan",
|
|
.maxattr = IFLA_VLAN_MAX,
|
|
.parse_opt = vlan_parse_opt,
|
|
.print_opt = vlan_print_opt,
|
|
.print_help = vlan_print_help,
|
|
};
|