Unmapped mbufs allow sendfile to carry multiple pages of data in a single mbuf, without mapping those pages. It is a requirement for Netflix's in-kernel TLS, and provides a 5-10% CPU savings on heavy web serving workloads when used by sendfile, due to effectively compressing socket buffers by an order of magnitude, and hence reducing cache misses. For this new external mbuf buffer type (EXT_PGS), the ext_buf pointer now points to a struct mbuf_ext_pgs structure instead of a data buffer. This structure contains an array of physical addresses (this reduces cache misses compared to an earlier version that stored an array of vm_page_t pointers). It also stores additional fields needed for in-kernel TLS such as the TLS header and trailer data that are currently unused. To more easily detect these mbufs, the M_NOMAP flag is set in m_flags in addition to M_EXT. Various functions like m_copydata() have been updated to safely access packet contents (using uiomove_fromphys()), to make things like BPF safe. NIC drivers advertise support for unmapped mbufs on transmit via a new IFCAP_NOMAP capability. This capability can be toggled via the new 'nomap' and '-nomap' ifconfig(8) commands. For NIC drivers that only transmit packet contents via DMA and use bus_dma, adding the capability to if_capabilities and if_capenable should be all that is required. If a NIC does not support unmapped mbufs, they are converted to a chain of mapped mbufs (using sf_bufs to provide the mapping) in ip_output or ip6_output. If an unmapped mbuf requires software checksums, it is also converted to a chain of mapped mbufs before computing the checksum. Submitted by: gallatin (earlier version) Reviewed by: gallatin, hselasky, rrs Discussed with: ae, kp (firewalls) Relnotes: yes Sponsored by: Netflix Differential Revision: https://reviews.freebsd.org/D20616
1615 lines
38 KiB
C
1615 lines
38 KiB
C
/*-
|
|
* SPDX-License-Identifier: BSD-3-Clause
|
|
*
|
|
* Copyright (c) 1983, 1993
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* The Regents of the University of California. All rights reserved.
|
|
*
|
|
* Redistribution and use in source and binary forms, with or without
|
|
* modification, are permitted provided that the following conditions
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|
* are met:
|
|
* 1. Redistributions of source code must retain the above copyright
|
|
* notice, this list of conditions and the following disclaimer.
|
|
* 2. Redistributions in binary form must reproduce the above copyright
|
|
* notice, this list of conditions and the following disclaimer in the
|
|
* documentation and/or other materials provided with the distribution.
|
|
* 3. Neither the name of the University nor the names of its contributors
|
|
* may be used to endorse or promote products derived from this software
|
|
* without specific prior written permission.
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|
*
|
|
* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
|
|
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
|
|
* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
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|
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
|
|
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
|
|
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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|
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
|
|
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*/
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|
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|
#ifndef lint
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|
static const char copyright[] =
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"@(#) Copyright (c) 1983, 1993\n\
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The Regents of the University of California. All rights reserved.\n";
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#endif /* not lint */
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|
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|
#ifndef lint
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|
#if 0
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static char sccsid[] = "@(#)ifconfig.c 8.2 (Berkeley) 2/16/94";
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|
#endif
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static const char rcsid[] =
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"$FreeBSD$";
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|
#endif /* not lint */
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|
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|
#include <sys/param.h>
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|
#include <sys/ioctl.h>
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|
#include <sys/module.h>
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|
#include <sys/linker.h>
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|
#include <sys/queue.h>
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|
#include <sys/socket.h>
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|
#include <sys/time.h>
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|
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|
#include <net/ethernet.h>
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#include <net/if.h>
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#include <net/if_dl.h>
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#include <net/if_types.h>
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#include <net/route.h>
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|
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|
/* IP */
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#include <netinet/in.h>
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#include <netinet/in_var.h>
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#include <arpa/inet.h>
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#include <netdb.h>
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|
|
|
#include <ifaddrs.h>
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|
#include <ctype.h>
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|
#include <err.h>
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|
#include <errno.h>
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|
#include <fcntl.h>
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|
#ifdef JAIL
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|
#include <jail.h>
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#endif
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|
#include <stdbool.h>
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|
#include <stdio.h>
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|
#include <stdlib.h>
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|
#include <string.h>
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|
#include <unistd.h>
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|
|
|
#include "ifconfig.h"
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|
|
|
/*
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* Since "struct ifreq" is composed of various union members, callers
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* should pay special attention to interpret the value.
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|
* (.e.g. little/big endian difference in the structure.)
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*/
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|
struct ifreq ifr;
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|
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|
char name[IFNAMSIZ];
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char *descr = NULL;
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size_t descrlen = 64;
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|
int setaddr;
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|
int setmask;
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|
int doalias;
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|
int clearaddr;
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|
int newaddr = 1;
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|
int verbose;
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|
int noload;
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|
int printifname = 0;
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|
|
|
int supmedia = 0;
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int printkeys = 0; /* Print keying material for interfaces. */
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|
int exit_code = 0;
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|
|
|
/* Formatter Strings */
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char *f_inet, *f_inet6, *f_ether, *f_addr;
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|
|
static int ifconfig(int argc, char *const *argv, int iscreate,
|
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const struct afswtch *afp);
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|
static void status(const struct afswtch *afp, const struct sockaddr_dl *sdl,
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struct ifaddrs *ifa);
|
|
static void tunnel_status(int s);
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|
static _Noreturn void usage(void);
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|
|
|
static int getifflags(const char *ifname, int us);
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|
|
|
static struct afswtch *af_getbyname(const char *name);
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static struct afswtch *af_getbyfamily(int af);
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|
static void af_other_status(int);
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|
|
|
void printifnamemaybe(void);
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|
|
|
static struct option *opts = NULL;
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|
|
|
struct ifa_order_elt {
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int if_order;
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|
int af_orders[255];
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|
struct ifaddrs *ifa;
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TAILQ_ENTRY(ifa_order_elt) link;
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};
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|
|
TAILQ_HEAD(ifa_queue, ifa_order_elt);
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|
|
|
static struct module_map_entry {
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|
const char *ifname;
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|
const char *kldname;
|
|
} module_map[] = {
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|
{
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|
.ifname = "tun",
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|
.kldname = "if_tuntap",
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|
},
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|
{
|
|
.ifname = "tap",
|
|
.kldname = "if_tuntap",
|
|
},
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|
{
|
|
.ifname = "vmnet",
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|
.kldname = "if_tuntap",
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|
},
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|
{
|
|
.ifname = "ipsec",
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|
.kldname = "ipsec",
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|
},
|
|
{
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|
/*
|
|
* This mapping exists because there is a conflicting enc module
|
|
* in CAM. ifconfig's guessing behavior will attempt to match
|
|
* the ifname to a module as well as if_${ifname} and clash with
|
|
* CAM enc. This is an assertion of the correct module to load.
|
|
*/
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|
.ifname = "enc",
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|
.kldname = "if_enc",
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|
},
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|
};
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|
|
|
|
|
void
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|
opt_register(struct option *p)
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|
{
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|
p->next = opts;
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|
opts = p;
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|
}
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|
|
|
static void
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|
usage(void)
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|
{
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|
char options[1024];
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|
struct option *p;
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|
|
|
/* XXX not right but close enough for now */
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|
options[0] = '\0';
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|
for (p = opts; p != NULL; p = p->next) {
|
|
strlcat(options, p->opt_usage, sizeof(options));
|
|
strlcat(options, " ", sizeof(options));
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|
}
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|
|
|
fprintf(stderr,
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|
"usage: ifconfig [-f type:format] %sinterface address_family\n"
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|
" [address [dest_address]] [parameters]\n"
|
|
" ifconfig interface create\n"
|
|
" ifconfig -a %s[-d] [-m] [-u] [-v] [address_family]\n"
|
|
" ifconfig -l [-d] [-u] [address_family]\n"
|
|
" ifconfig %s[-d] [-m] [-u] [-v]\n",
|
|
options, options, options);
|
|
exit(1);
|
|
}
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|
|
|
#define ORDERS_SIZE(x) sizeof(x) / sizeof(x[0])
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|
|
static int
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|
calcorders(struct ifaddrs *ifa, struct ifa_queue *q)
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|
{
|
|
struct ifaddrs *prev;
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|
struct ifa_order_elt *cur;
|
|
unsigned int ord, af, ifa_ord;
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|
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|
prev = NULL;
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|
cur = NULL;
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|
ord = 0;
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|
ifa_ord = 0;
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|
|
|
while (ifa != NULL) {
|
|
if (prev == NULL ||
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|
strcmp(ifa->ifa_name, prev->ifa_name) != 0) {
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|
cur = calloc(1, sizeof(*cur));
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|
|
|
if (cur == NULL)
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|
return (-1);
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|
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|
TAILQ_INSERT_TAIL(q, cur, link);
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|
cur->if_order = ifa_ord ++;
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|
cur->ifa = ifa;
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|
ord = 0;
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|
}
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|
if (ifa->ifa_addr) {
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|
af = ifa->ifa_addr->sa_family;
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|
|
|
if (af < ORDERS_SIZE(cur->af_orders) &&
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|
cur->af_orders[af] == 0)
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|
cur->af_orders[af] = ++ord;
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|
}
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|
prev = ifa;
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|
ifa = ifa->ifa_next;
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|
}
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|
|
|
return (0);
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|
}
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|
|
static int
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|
cmpifaddrs(struct ifaddrs *a, struct ifaddrs *b, struct ifa_queue *q)
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|
{
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|
struct ifa_order_elt *cur, *e1, *e2;
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|
unsigned int af1, af2;
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|
int ret;
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|
e1 = e2 = NULL;
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|
ret = strcmp(a->ifa_name, b->ifa_name);
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|
if (ret != 0) {
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|
TAILQ_FOREACH(cur, q, link) {
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|
if (e1 && e2)
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|
break;
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|
if (strcmp(cur->ifa->ifa_name, a->ifa_name) == 0)
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e1 = cur;
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|
else if (strcmp(cur->ifa->ifa_name, b->ifa_name) == 0)
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e2 = cur;
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|
}
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|
|
if (!e1 || !e2)
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|
return (0);
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|
else
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|
return (e1->if_order - e2->if_order);
|
|
|
|
} else if (a->ifa_addr != NULL && b->ifa_addr != NULL) {
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TAILQ_FOREACH(cur, q, link) {
|
|
if (strcmp(cur->ifa->ifa_name, a->ifa_name) == 0) {
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|
e1 = cur;
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|
break;
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|
}
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|
}
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|
|
if (!e1)
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|
return (0);
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|
|
af1 = a->ifa_addr->sa_family;
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|
af2 = b->ifa_addr->sa_family;
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|
|
|
if (af1 < ORDERS_SIZE(e1->af_orders) &&
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|
af2 < ORDERS_SIZE(e1->af_orders))
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|
return (e1->af_orders[af1] - e1->af_orders[af2]);
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|
}
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|
|
|
return (0);
|
|
}
|
|
|
|
static void freeformat(void)
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|
{
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|
|
|
if (f_inet != NULL)
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|
free(f_inet);
|
|
if (f_inet6 != NULL)
|
|
free(f_inet6);
|
|
if (f_ether != NULL)
|
|
free(f_ether);
|
|
if (f_addr != NULL)
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|
free(f_addr);
|
|
}
|
|
|
|
static void setformat(char *input)
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|
{
|
|
char *formatstr, *category, *modifier;
|
|
|
|
formatstr = strdup(input);
|
|
while ((category = strsep(&formatstr, ",")) != NULL) {
|
|
modifier = strchr(category, ':');
|
|
if (modifier == NULL || modifier[1] == '\0') {
|
|
warnx("Skipping invalid format specification: %s\n",
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|
category);
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|
continue;
|
|
}
|
|
|
|
/* Split the string on the separator, then seek past it */
|
|
modifier[0] = '\0';
|
|
modifier++;
|
|
|
|
if (strcmp(category, "addr") == 0)
|
|
f_addr = strdup(modifier);
|
|
else if (strcmp(category, "ether") == 0)
|
|
f_ether = strdup(modifier);
|
|
else if (strcmp(category, "inet") == 0)
|
|
f_inet = strdup(modifier);
|
|
else if (strcmp(category, "inet6") == 0)
|
|
f_inet6 = strdup(modifier);
|
|
}
|
|
free(formatstr);
|
|
}
|
|
|
|
#undef ORDERS_SIZE
|
|
|
|
static struct ifaddrs *
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|
sortifaddrs(struct ifaddrs *list,
|
|
int (*compare)(struct ifaddrs *, struct ifaddrs *, struct ifa_queue *),
|
|
struct ifa_queue *q)
|
|
{
|
|
struct ifaddrs *right, *temp, *last, *result, *next, *tail;
|
|
|
|
right = list;
|
|
temp = list;
|
|
last = list;
|
|
result = NULL;
|
|
next = NULL;
|
|
tail = NULL;
|
|
|
|
if (!list || !list->ifa_next)
|
|
return (list);
|
|
|
|
while (temp && temp->ifa_next) {
|
|
last = right;
|
|
right = right->ifa_next;
|
|
temp = temp->ifa_next->ifa_next;
|
|
}
|
|
|
|
last->ifa_next = NULL;
|
|
|
|
list = sortifaddrs(list, compare, q);
|
|
right = sortifaddrs(right, compare, q);
|
|
|
|
while (list || right) {
|
|
|
|
if (!right) {
|
|
next = list;
|
|
list = list->ifa_next;
|
|
} else if (!list) {
|
|
next = right;
|
|
right = right->ifa_next;
|
|
} else if (compare(list, right, q) <= 0) {
|
|
next = list;
|
|
list = list->ifa_next;
|
|
} else {
|
|
next = right;
|
|
right = right->ifa_next;
|
|
}
|
|
|
|
if (!result)
|
|
result = next;
|
|
else
|
|
tail->ifa_next = next;
|
|
|
|
tail = next;
|
|
}
|
|
|
|
return (result);
|
|
}
|
|
|
|
void printifnamemaybe()
|
|
{
|
|
if (printifname)
|
|
printf("%s\n", name);
|
|
}
|
|
|
|
int
|
|
main(int argc, char *argv[])
|
|
{
|
|
int c, all, namesonly, downonly, uponly;
|
|
const struct afswtch *afp = NULL;
|
|
int ifindex;
|
|
struct ifaddrs *ifap, *sifap, *ifa;
|
|
struct ifreq paifr;
|
|
const struct sockaddr_dl *sdl;
|
|
char options[1024], *cp, *envformat, *namecp = NULL;
|
|
struct ifa_queue q = TAILQ_HEAD_INITIALIZER(q);
|
|
struct ifa_order_elt *cur, *tmp;
|
|
const char *ifname;
|
|
struct option *p;
|
|
size_t iflen;
|
|
int flags;
|
|
|
|
all = downonly = uponly = namesonly = noload = verbose = 0;
|
|
f_inet = f_inet6 = f_ether = f_addr = NULL;
|
|
|
|
envformat = getenv("IFCONFIG_FORMAT");
|
|
if (envformat != NULL)
|
|
setformat(envformat);
|
|
|
|
/*
|
|
* Ensure we print interface name when expected to,
|
|
* even if we terminate early due to error.
|
|
*/
|
|
atexit(printifnamemaybe);
|
|
|
|
/* Parse leading line options */
|
|
strlcpy(options, "f:adklmnuv", sizeof(options));
|
|
for (p = opts; p != NULL; p = p->next)
|
|
strlcat(options, p->opt, sizeof(options));
|
|
while ((c = getopt(argc, argv, options)) != -1) {
|
|
switch (c) {
|
|
case 'a': /* scan all interfaces */
|
|
all++;
|
|
break;
|
|
case 'd': /* restrict scan to "down" interfaces */
|
|
downonly++;
|
|
break;
|
|
case 'f':
|
|
if (optarg == NULL)
|
|
usage();
|
|
setformat(optarg);
|
|
break;
|
|
case 'k':
|
|
printkeys++;
|
|
break;
|
|
case 'l': /* scan interface names only */
|
|
namesonly++;
|
|
break;
|
|
case 'm': /* show media choices in status */
|
|
supmedia = 1;
|
|
break;
|
|
case 'n': /* suppress module loading */
|
|
noload++;
|
|
break;
|
|
case 'u': /* restrict scan to "up" interfaces */
|
|
uponly++;
|
|
break;
|
|
case 'v':
|
|
verbose++;
|
|
break;
|
|
default:
|
|
for (p = opts; p != NULL; p = p->next)
|
|
if (p->opt[0] == c) {
|
|
p->cb(optarg);
|
|
break;
|
|
}
|
|
if (p == NULL)
|
|
usage();
|
|
break;
|
|
}
|
|
}
|
|
argc -= optind;
|
|
argv += optind;
|
|
|
|
/* -l cannot be used with -a or -m */
|
|
if (namesonly && (all || supmedia))
|
|
usage();
|
|
|
|
/* nonsense.. */
|
|
if (uponly && downonly)
|
|
usage();
|
|
|
|
/* no arguments is equivalent to '-a' */
|
|
if (!namesonly && argc < 1)
|
|
all = 1;
|
|
|
|
/* -a and -l allow an address family arg to limit the output */
|
|
if (all || namesonly) {
|
|
if (argc > 1)
|
|
usage();
|
|
|
|
ifname = NULL;
|
|
ifindex = 0;
|
|
if (argc == 1) {
|
|
afp = af_getbyname(*argv);
|
|
if (afp == NULL) {
|
|
warnx("Address family '%s' unknown.", *argv);
|
|
usage();
|
|
}
|
|
if (afp->af_name != NULL)
|
|
argc--, argv++;
|
|
/* leave with afp non-zero */
|
|
}
|
|
} else {
|
|
/* not listing, need an argument */
|
|
if (argc < 1)
|
|
usage();
|
|
|
|
ifname = *argv;
|
|
argc--, argv++;
|
|
|
|
/* check and maybe load support for this interface */
|
|
ifmaybeload(ifname);
|
|
|
|
ifindex = if_nametoindex(ifname);
|
|
if (ifindex == 0) {
|
|
/*
|
|
* NOTE: We must special-case the `create' command
|
|
* right here as we would otherwise fail when trying
|
|
* to find the interface.
|
|
*/
|
|
if (argc > 0 && (strcmp(argv[0], "create") == 0 ||
|
|
strcmp(argv[0], "plumb") == 0)) {
|
|
iflen = strlcpy(name, ifname, sizeof(name));
|
|
if (iflen >= sizeof(name))
|
|
errx(1, "%s: cloning name too long",
|
|
ifname);
|
|
ifconfig(argc, argv, 1, NULL);
|
|
exit(exit_code);
|
|
}
|
|
#ifdef JAIL
|
|
/*
|
|
* NOTE: We have to special-case the `-vnet' command
|
|
* right here as we would otherwise fail when trying
|
|
* to find the interface as it lives in another vnet.
|
|
*/
|
|
if (argc > 0 && (strcmp(argv[0], "-vnet") == 0)) {
|
|
iflen = strlcpy(name, ifname, sizeof(name));
|
|
if (iflen >= sizeof(name))
|
|
errx(1, "%s: interface name too long",
|
|
ifname);
|
|
ifconfig(argc, argv, 0, NULL);
|
|
exit(exit_code);
|
|
}
|
|
#endif
|
|
errx(1, "interface %s does not exist", ifname);
|
|
} else {
|
|
/*
|
|
* Do not allow use `create` command as hostname if
|
|
* address family is not specified.
|
|
*/
|
|
if (argc > 0 && (strcmp(argv[0], "create") == 0 ||
|
|
strcmp(argv[0], "plumb") == 0)) {
|
|
if (argc == 1)
|
|
errx(1, "interface %s already exists",
|
|
ifname);
|
|
argc--, argv++;
|
|
}
|
|
}
|
|
}
|
|
|
|
/* Check for address family */
|
|
if (argc > 0) {
|
|
afp = af_getbyname(*argv);
|
|
if (afp != NULL)
|
|
argc--, argv++;
|
|
}
|
|
|
|
/*
|
|
* Check for a requested configuration action on a single interface,
|
|
* which doesn't require building, sorting, and searching the entire
|
|
* system address list
|
|
*/
|
|
if ((argc > 0) && (ifname != NULL)) {
|
|
iflen = strlcpy(name, ifname, sizeof(name));
|
|
if (iflen >= sizeof(name)) {
|
|
warnx("%s: interface name too long, skipping", ifname);
|
|
} else {
|
|
flags = getifflags(name, -1);
|
|
if (!(((flags & IFF_CANTCONFIG) != 0) ||
|
|
(downonly && (flags & IFF_UP) != 0) ||
|
|
(uponly && (flags & IFF_UP) == 0)))
|
|
ifconfig(argc, argv, 0, afp);
|
|
}
|
|
goto done;
|
|
}
|
|
|
|
if (getifaddrs(&ifap) != 0)
|
|
err(EXIT_FAILURE, "getifaddrs");
|
|
|
|
cp = NULL;
|
|
|
|
if (calcorders(ifap, &q) != 0)
|
|
err(EXIT_FAILURE, "calcorders");
|
|
|
|
sifap = sortifaddrs(ifap, cmpifaddrs, &q);
|
|
|
|
TAILQ_FOREACH_SAFE(cur, &q, link, tmp)
|
|
free(cur);
|
|
|
|
ifindex = 0;
|
|
for (ifa = sifap; ifa; ifa = ifa->ifa_next) {
|
|
memset(&paifr, 0, sizeof(paifr));
|
|
strlcpy(paifr.ifr_name, ifa->ifa_name, sizeof(paifr.ifr_name));
|
|
if (sizeof(paifr.ifr_addr) >= ifa->ifa_addr->sa_len) {
|
|
memcpy(&paifr.ifr_addr, ifa->ifa_addr,
|
|
ifa->ifa_addr->sa_len);
|
|
}
|
|
|
|
if (ifname != NULL && strcmp(ifname, ifa->ifa_name) != 0)
|
|
continue;
|
|
if (ifa->ifa_addr->sa_family == AF_LINK)
|
|
sdl = (const struct sockaddr_dl *) ifa->ifa_addr;
|
|
else
|
|
sdl = NULL;
|
|
if (cp != NULL && strcmp(cp, ifa->ifa_name) == 0 && !namesonly)
|
|
continue;
|
|
iflen = strlcpy(name, ifa->ifa_name, sizeof(name));
|
|
if (iflen >= sizeof(name)) {
|
|
warnx("%s: interface name too long, skipping",
|
|
ifa->ifa_name);
|
|
continue;
|
|
}
|
|
cp = ifa->ifa_name;
|
|
|
|
if ((ifa->ifa_flags & IFF_CANTCONFIG) != 0)
|
|
continue;
|
|
if (downonly && (ifa->ifa_flags & IFF_UP) != 0)
|
|
continue;
|
|
if (uponly && (ifa->ifa_flags & IFF_UP) == 0)
|
|
continue;
|
|
/*
|
|
* Are we just listing the interfaces?
|
|
*/
|
|
if (namesonly) {
|
|
if (namecp == cp)
|
|
continue;
|
|
if (afp != NULL) {
|
|
/* special case for "ether" address family */
|
|
if (!strcmp(afp->af_name, "ether")) {
|
|
if (sdl == NULL ||
|
|
(sdl->sdl_type != IFT_ETHER &&
|
|
sdl->sdl_type != IFT_L2VLAN &&
|
|
sdl->sdl_type != IFT_BRIDGE) ||
|
|
sdl->sdl_alen != ETHER_ADDR_LEN)
|
|
continue;
|
|
} else {
|
|
if (ifa->ifa_addr->sa_family
|
|
!= afp->af_af)
|
|
continue;
|
|
}
|
|
}
|
|
namecp = cp;
|
|
ifindex++;
|
|
if (ifindex > 1)
|
|
printf(" ");
|
|
fputs(name, stdout);
|
|
continue;
|
|
}
|
|
ifindex++;
|
|
|
|
if (argc > 0)
|
|
ifconfig(argc, argv, 0, afp);
|
|
else
|
|
status(afp, sdl, ifa);
|
|
}
|
|
if (namesonly)
|
|
printf("\n");
|
|
freeifaddrs(ifap);
|
|
|
|
done:
|
|
freeformat();
|
|
exit(exit_code);
|
|
}
|
|
|
|
static struct afswtch *afs = NULL;
|
|
|
|
void
|
|
af_register(struct afswtch *p)
|
|
{
|
|
p->af_next = afs;
|
|
afs = p;
|
|
}
|
|
|
|
static struct afswtch *
|
|
af_getbyname(const char *name)
|
|
{
|
|
struct afswtch *afp;
|
|
|
|
for (afp = afs; afp != NULL; afp = afp->af_next)
|
|
if (strcmp(afp->af_name, name) == 0)
|
|
return afp;
|
|
return NULL;
|
|
}
|
|
|
|
static struct afswtch *
|
|
af_getbyfamily(int af)
|
|
{
|
|
struct afswtch *afp;
|
|
|
|
for (afp = afs; afp != NULL; afp = afp->af_next)
|
|
if (afp->af_af == af)
|
|
return afp;
|
|
return NULL;
|
|
}
|
|
|
|
static void
|
|
af_other_status(int s)
|
|
{
|
|
struct afswtch *afp;
|
|
uint8_t afmask[howmany(AF_MAX, NBBY)];
|
|
|
|
memset(afmask, 0, sizeof(afmask));
|
|
for (afp = afs; afp != NULL; afp = afp->af_next) {
|
|
if (afp->af_other_status == NULL)
|
|
continue;
|
|
if (afp->af_af != AF_UNSPEC && isset(afmask, afp->af_af))
|
|
continue;
|
|
afp->af_other_status(s);
|
|
setbit(afmask, afp->af_af);
|
|
}
|
|
}
|
|
|
|
static void
|
|
af_all_tunnel_status(int s)
|
|
{
|
|
struct afswtch *afp;
|
|
uint8_t afmask[howmany(AF_MAX, NBBY)];
|
|
|
|
memset(afmask, 0, sizeof(afmask));
|
|
for (afp = afs; afp != NULL; afp = afp->af_next) {
|
|
if (afp->af_status_tunnel == NULL)
|
|
continue;
|
|
if (afp->af_af != AF_UNSPEC && isset(afmask, afp->af_af))
|
|
continue;
|
|
afp->af_status_tunnel(s);
|
|
setbit(afmask, afp->af_af);
|
|
}
|
|
}
|
|
|
|
static struct cmd *cmds = NULL;
|
|
|
|
void
|
|
cmd_register(struct cmd *p)
|
|
{
|
|
p->c_next = cmds;
|
|
cmds = p;
|
|
}
|
|
|
|
static const struct cmd *
|
|
cmd_lookup(const char *name, int iscreate)
|
|
{
|
|
const struct cmd *p;
|
|
|
|
for (p = cmds; p != NULL; p = p->c_next)
|
|
if (strcmp(name, p->c_name) == 0) {
|
|
if (iscreate) {
|
|
if (p->c_iscloneop)
|
|
return p;
|
|
} else {
|
|
if (!p->c_iscloneop)
|
|
return p;
|
|
}
|
|
}
|
|
return NULL;
|
|
}
|
|
|
|
struct callback {
|
|
callback_func *cb_func;
|
|
void *cb_arg;
|
|
struct callback *cb_next;
|
|
};
|
|
static struct callback *callbacks = NULL;
|
|
|
|
void
|
|
callback_register(callback_func *func, void *arg)
|
|
{
|
|
struct callback *cb;
|
|
|
|
cb = malloc(sizeof(struct callback));
|
|
if (cb == NULL)
|
|
errx(1, "unable to allocate memory for callback");
|
|
cb->cb_func = func;
|
|
cb->cb_arg = arg;
|
|
cb->cb_next = callbacks;
|
|
callbacks = cb;
|
|
}
|
|
|
|
/* specially-handled commands */
|
|
static void setifaddr(const char *, int, int, const struct afswtch *);
|
|
static const struct cmd setifaddr_cmd = DEF_CMD("ifaddr", 0, setifaddr);
|
|
|
|
static void setifdstaddr(const char *, int, int, const struct afswtch *);
|
|
static const struct cmd setifdstaddr_cmd =
|
|
DEF_CMD("ifdstaddr", 0, setifdstaddr);
|
|
|
|
static int
|
|
ifconfig(int argc, char *const *argv, int iscreate, const struct afswtch *uafp)
|
|
{
|
|
const struct afswtch *afp, *nafp;
|
|
const struct cmd *p;
|
|
struct callback *cb;
|
|
int s;
|
|
|
|
strlcpy(ifr.ifr_name, name, sizeof ifr.ifr_name);
|
|
afp = NULL;
|
|
if (uafp != NULL)
|
|
afp = uafp;
|
|
/*
|
|
* This is the historical "accident" allowing users to configure IPv4
|
|
* addresses without the "inet" keyword which while a nice feature has
|
|
* proven to complicate other things. We cannot remove this but only
|
|
* make sure we will never have a similar implicit default for IPv6 or
|
|
* any other address familiy. We need a fallback though for
|
|
* ifconfig IF up/down etc. to work without INET support as people
|
|
* never used ifconfig IF link up/down, etc. either.
|
|
*/
|
|
#ifndef RESCUE
|
|
#ifdef INET
|
|
if (afp == NULL && feature_present("inet"))
|
|
afp = af_getbyname("inet");
|
|
#endif
|
|
#endif
|
|
if (afp == NULL)
|
|
afp = af_getbyname("link");
|
|
if (afp == NULL) {
|
|
warnx("Please specify an address_family.");
|
|
usage();
|
|
}
|
|
top:
|
|
ifr.ifr_addr.sa_family =
|
|
afp->af_af == AF_LINK || afp->af_af == AF_UNSPEC ?
|
|
AF_LOCAL : afp->af_af;
|
|
|
|
if ((s = socket(ifr.ifr_addr.sa_family, SOCK_DGRAM, 0)) < 0 &&
|
|
(uafp != NULL || errno != EAFNOSUPPORT ||
|
|
(s = socket(AF_LOCAL, SOCK_DGRAM, 0)) < 0))
|
|
err(1, "socket(family %u,SOCK_DGRAM)", ifr.ifr_addr.sa_family);
|
|
|
|
while (argc > 0) {
|
|
p = cmd_lookup(*argv, iscreate);
|
|
if (iscreate && p == NULL) {
|
|
/*
|
|
* Push the clone create callback so the new
|
|
* device is created and can be used for any
|
|
* remaining arguments.
|
|
*/
|
|
cb = callbacks;
|
|
if (cb == NULL)
|
|
errx(1, "internal error, no callback");
|
|
callbacks = cb->cb_next;
|
|
cb->cb_func(s, cb->cb_arg);
|
|
iscreate = 0;
|
|
/*
|
|
* Handle any address family spec that
|
|
* immediately follows and potentially
|
|
* recreate the socket.
|
|
*/
|
|
nafp = af_getbyname(*argv);
|
|
if (nafp != NULL) {
|
|
argc--, argv++;
|
|
if (nafp != afp) {
|
|
close(s);
|
|
afp = nafp;
|
|
goto top;
|
|
}
|
|
}
|
|
/*
|
|
* Look for a normal parameter.
|
|
*/
|
|
continue;
|
|
}
|
|
if (p == NULL) {
|
|
/*
|
|
* Not a recognized command, choose between setting
|
|
* the interface address and the dst address.
|
|
*/
|
|
p = (setaddr ? &setifdstaddr_cmd : &setifaddr_cmd);
|
|
}
|
|
if (p->c_parameter == NEXTARG && p->c_u.c_func) {
|
|
if (argv[1] == NULL)
|
|
errx(1, "'%s' requires argument",
|
|
p->c_name);
|
|
p->c_u.c_func(argv[1], 0, s, afp);
|
|
argc--, argv++;
|
|
} else if (p->c_parameter == OPTARG && p->c_u.c_func) {
|
|
p->c_u.c_func(argv[1], 0, s, afp);
|
|
if (argv[1] != NULL)
|
|
argc--, argv++;
|
|
} else if (p->c_parameter == NEXTARG2 && p->c_u.c_func2) {
|
|
if (argc < 3)
|
|
errx(1, "'%s' requires 2 arguments",
|
|
p->c_name);
|
|
p->c_u.c_func2(argv[1], argv[2], s, afp);
|
|
argc -= 2, argv += 2;
|
|
} else if (p->c_u.c_func)
|
|
p->c_u.c_func(*argv, p->c_parameter, s, afp);
|
|
argc--, argv++;
|
|
}
|
|
|
|
/*
|
|
* Do any post argument processing required by the address family.
|
|
*/
|
|
if (afp->af_postproc != NULL)
|
|
afp->af_postproc(s, afp);
|
|
/*
|
|
* Do deferred callbacks registered while processing
|
|
* command-line arguments.
|
|
*/
|
|
for (cb = callbacks; cb != NULL; cb = cb->cb_next)
|
|
cb->cb_func(s, cb->cb_arg);
|
|
/*
|
|
* Do deferred operations.
|
|
*/
|
|
if (clearaddr) {
|
|
if (afp->af_ridreq == NULL || afp->af_difaddr == 0) {
|
|
warnx("interface %s cannot change %s addresses!",
|
|
name, afp->af_name);
|
|
clearaddr = 0;
|
|
}
|
|
}
|
|
if (clearaddr) {
|
|
int ret;
|
|
strlcpy(((struct ifreq *)afp->af_ridreq)->ifr_name, name,
|
|
sizeof ifr.ifr_name);
|
|
ret = ioctl(s, afp->af_difaddr, afp->af_ridreq);
|
|
if (ret < 0) {
|
|
if (errno == EADDRNOTAVAIL && (doalias >= 0)) {
|
|
/* means no previous address for interface */
|
|
} else
|
|
Perror("ioctl (SIOCDIFADDR)");
|
|
}
|
|
}
|
|
if (newaddr) {
|
|
if (afp->af_addreq == NULL || afp->af_aifaddr == 0) {
|
|
warnx("interface %s cannot change %s addresses!",
|
|
name, afp->af_name);
|
|
newaddr = 0;
|
|
}
|
|
}
|
|
if (newaddr && (setaddr || setmask)) {
|
|
strlcpy(((struct ifreq *)afp->af_addreq)->ifr_name, name,
|
|
sizeof ifr.ifr_name);
|
|
if (ioctl(s, afp->af_aifaddr, afp->af_addreq) < 0)
|
|
Perror("ioctl (SIOCAIFADDR)");
|
|
}
|
|
|
|
close(s);
|
|
return(0);
|
|
}
|
|
|
|
/*ARGSUSED*/
|
|
static void
|
|
setifaddr(const char *addr, int param, int s, const struct afswtch *afp)
|
|
{
|
|
if (afp->af_getaddr == NULL)
|
|
return;
|
|
/*
|
|
* Delay the ioctl to set the interface addr until flags are all set.
|
|
* The address interpretation may depend on the flags,
|
|
* and the flags may change when the address is set.
|
|
*/
|
|
setaddr++;
|
|
if (doalias == 0 && afp->af_af != AF_LINK)
|
|
clearaddr = 1;
|
|
afp->af_getaddr(addr, (doalias >= 0 ? ADDR : RIDADDR));
|
|
}
|
|
|
|
static void
|
|
settunnel(const char *src, const char *dst, int s, const struct afswtch *afp)
|
|
{
|
|
struct addrinfo *srcres, *dstres;
|
|
int ecode;
|
|
|
|
if (afp->af_settunnel == NULL) {
|
|
warn("address family %s does not support tunnel setup",
|
|
afp->af_name);
|
|
return;
|
|
}
|
|
|
|
if ((ecode = getaddrinfo(src, NULL, NULL, &srcres)) != 0)
|
|
errx(1, "error in parsing address string: %s",
|
|
gai_strerror(ecode));
|
|
|
|
if ((ecode = getaddrinfo(dst, NULL, NULL, &dstres)) != 0)
|
|
errx(1, "error in parsing address string: %s",
|
|
gai_strerror(ecode));
|
|
|
|
if (srcres->ai_addr->sa_family != dstres->ai_addr->sa_family)
|
|
errx(1,
|
|
"source and destination address families do not match");
|
|
|
|
afp->af_settunnel(s, srcres, dstres);
|
|
|
|
freeaddrinfo(srcres);
|
|
freeaddrinfo(dstres);
|
|
}
|
|
|
|
/* ARGSUSED */
|
|
static void
|
|
deletetunnel(const char *vname, int param, int s, const struct afswtch *afp)
|
|
{
|
|
|
|
if (ioctl(s, SIOCDIFPHYADDR, &ifr) < 0)
|
|
err(1, "SIOCDIFPHYADDR");
|
|
}
|
|
|
|
#ifdef JAIL
|
|
static void
|
|
setifvnet(const char *jname, int dummy __unused, int s,
|
|
const struct afswtch *afp)
|
|
{
|
|
struct ifreq my_ifr;
|
|
|
|
memcpy(&my_ifr, &ifr, sizeof(my_ifr));
|
|
my_ifr.ifr_jid = jail_getid(jname);
|
|
if (my_ifr.ifr_jid < 0)
|
|
errx(1, "%s", jail_errmsg);
|
|
if (ioctl(s, SIOCSIFVNET, &my_ifr) < 0)
|
|
err(1, "SIOCSIFVNET");
|
|
}
|
|
|
|
static void
|
|
setifrvnet(const char *jname, int dummy __unused, int s,
|
|
const struct afswtch *afp)
|
|
{
|
|
struct ifreq my_ifr;
|
|
|
|
memcpy(&my_ifr, &ifr, sizeof(my_ifr));
|
|
my_ifr.ifr_jid = jail_getid(jname);
|
|
if (my_ifr.ifr_jid < 0)
|
|
errx(1, "%s", jail_errmsg);
|
|
if (ioctl(s, SIOCSIFRVNET, &my_ifr) < 0)
|
|
err(1, "SIOCSIFRVNET(%d, %s)", my_ifr.ifr_jid, my_ifr.ifr_name);
|
|
}
|
|
#endif
|
|
|
|
static void
|
|
setifnetmask(const char *addr, int dummy __unused, int s,
|
|
const struct afswtch *afp)
|
|
{
|
|
if (afp->af_getaddr != NULL) {
|
|
setmask++;
|
|
afp->af_getaddr(addr, MASK);
|
|
}
|
|
}
|
|
|
|
static void
|
|
setifbroadaddr(const char *addr, int dummy __unused, int s,
|
|
const struct afswtch *afp)
|
|
{
|
|
if (afp->af_getaddr != NULL)
|
|
afp->af_getaddr(addr, DSTADDR);
|
|
}
|
|
|
|
static void
|
|
notealias(const char *addr, int param, int s, const struct afswtch *afp)
|
|
{
|
|
#define rqtosa(x) (&(((struct ifreq *)(afp->x))->ifr_addr))
|
|
if (setaddr && doalias == 0 && param < 0)
|
|
if (afp->af_addreq != NULL && afp->af_ridreq != NULL)
|
|
bcopy((caddr_t)rqtosa(af_addreq),
|
|
(caddr_t)rqtosa(af_ridreq),
|
|
rqtosa(af_addreq)->sa_len);
|
|
doalias = param;
|
|
if (param < 0) {
|
|
clearaddr = 1;
|
|
newaddr = 0;
|
|
} else
|
|
clearaddr = 0;
|
|
#undef rqtosa
|
|
}
|
|
|
|
/*ARGSUSED*/
|
|
static void
|
|
setifdstaddr(const char *addr, int param __unused, int s,
|
|
const struct afswtch *afp)
|
|
{
|
|
if (afp->af_getaddr != NULL)
|
|
afp->af_getaddr(addr, DSTADDR);
|
|
}
|
|
|
|
static int
|
|
getifflags(const char *ifname, int us)
|
|
{
|
|
struct ifreq my_ifr;
|
|
int s;
|
|
|
|
memset(&my_ifr, 0, sizeof(my_ifr));
|
|
(void) strlcpy(my_ifr.ifr_name, ifname, sizeof(my_ifr.ifr_name));
|
|
if (us < 0) {
|
|
if ((s = socket(AF_LOCAL, SOCK_DGRAM, 0)) < 0)
|
|
err(1, "socket(family AF_LOCAL,SOCK_DGRAM");
|
|
} else
|
|
s = us;
|
|
if (ioctl(s, SIOCGIFFLAGS, (caddr_t)&my_ifr) < 0) {
|
|
Perror("ioctl (SIOCGIFFLAGS)");
|
|
exit(1);
|
|
}
|
|
if (us < 0)
|
|
close(s);
|
|
return ((my_ifr.ifr_flags & 0xffff) | (my_ifr.ifr_flagshigh << 16));
|
|
}
|
|
|
|
/*
|
|
* Note: doing an SIOCIGIFFLAGS scribbles on the union portion
|
|
* of the ifreq structure, which may confuse other parts of ifconfig.
|
|
* Make a private copy so we can avoid that.
|
|
*/
|
|
static void
|
|
setifflags(const char *vname, int value, int s, const struct afswtch *afp)
|
|
{
|
|
struct ifreq my_ifr;
|
|
int flags;
|
|
|
|
flags = getifflags(name, s);
|
|
if (value < 0) {
|
|
value = -value;
|
|
flags &= ~value;
|
|
} else
|
|
flags |= value;
|
|
memset(&my_ifr, 0, sizeof(my_ifr));
|
|
(void) strlcpy(my_ifr.ifr_name, name, sizeof(my_ifr.ifr_name));
|
|
my_ifr.ifr_flags = flags & 0xffff;
|
|
my_ifr.ifr_flagshigh = flags >> 16;
|
|
if (ioctl(s, SIOCSIFFLAGS, (caddr_t)&my_ifr) < 0)
|
|
Perror(vname);
|
|
}
|
|
|
|
void
|
|
setifcap(const char *vname, int value, int s, const struct afswtch *afp)
|
|
{
|
|
int flags;
|
|
|
|
if (ioctl(s, SIOCGIFCAP, (caddr_t)&ifr) < 0) {
|
|
Perror("ioctl (SIOCGIFCAP)");
|
|
exit(1);
|
|
}
|
|
flags = ifr.ifr_curcap;
|
|
if (value < 0) {
|
|
value = -value;
|
|
flags &= ~value;
|
|
} else
|
|
flags |= value;
|
|
flags &= ifr.ifr_reqcap;
|
|
ifr.ifr_reqcap = flags;
|
|
if (ioctl(s, SIOCSIFCAP, (caddr_t)&ifr) < 0)
|
|
Perror(vname);
|
|
}
|
|
|
|
static void
|
|
setifmetric(const char *val, int dummy __unused, int s,
|
|
const struct afswtch *afp)
|
|
{
|
|
strlcpy(ifr.ifr_name, name, sizeof (ifr.ifr_name));
|
|
ifr.ifr_metric = atoi(val);
|
|
if (ioctl(s, SIOCSIFMETRIC, (caddr_t)&ifr) < 0)
|
|
err(1, "ioctl SIOCSIFMETRIC (set metric)");
|
|
}
|
|
|
|
static void
|
|
setifmtu(const char *val, int dummy __unused, int s,
|
|
const struct afswtch *afp)
|
|
{
|
|
strlcpy(ifr.ifr_name, name, sizeof (ifr.ifr_name));
|
|
ifr.ifr_mtu = atoi(val);
|
|
if (ioctl(s, SIOCSIFMTU, (caddr_t)&ifr) < 0)
|
|
err(1, "ioctl SIOCSIFMTU (set mtu)");
|
|
}
|
|
|
|
static void
|
|
setifpcp(const char *val, int arg __unused, int s, const struct afswtch *afp)
|
|
{
|
|
u_long ul;
|
|
char *endp;
|
|
|
|
ul = strtoul(val, &endp, 0);
|
|
if (*endp != '\0')
|
|
errx(1, "invalid value for pcp");
|
|
if (ul > 7)
|
|
errx(1, "value for pcp out of range");
|
|
ifr.ifr_lan_pcp = ul;
|
|
if (ioctl(s, SIOCSLANPCP, (caddr_t)&ifr) == -1)
|
|
err(1, "SIOCSLANPCP");
|
|
}
|
|
|
|
static void
|
|
disableifpcp(const char *val, int arg __unused, int s,
|
|
const struct afswtch *afp)
|
|
{
|
|
|
|
ifr.ifr_lan_pcp = IFNET_PCP_NONE;
|
|
if (ioctl(s, SIOCSLANPCP, (caddr_t)&ifr) == -1)
|
|
err(1, "SIOCSLANPCP");
|
|
}
|
|
|
|
static void
|
|
setifname(const char *val, int dummy __unused, int s,
|
|
const struct afswtch *afp)
|
|
{
|
|
char *newname;
|
|
|
|
strlcpy(ifr.ifr_name, name, sizeof(ifr.ifr_name));
|
|
|
|
newname = strdup(val);
|
|
if (newname == NULL)
|
|
err(1, "no memory to set ifname");
|
|
ifr.ifr_data = newname;
|
|
if (ioctl(s, SIOCSIFNAME, (caddr_t)&ifr) < 0) {
|
|
free(newname);
|
|
err(1, "ioctl SIOCSIFNAME (set name)");
|
|
}
|
|
printifname = 1;
|
|
strlcpy(name, newname, sizeof(name));
|
|
free(newname);
|
|
}
|
|
|
|
/* ARGSUSED */
|
|
static void
|
|
setifdescr(const char *val, int dummy __unused, int s,
|
|
const struct afswtch *afp)
|
|
{
|
|
char *newdescr;
|
|
|
|
strlcpy(ifr.ifr_name, name, sizeof(ifr.ifr_name));
|
|
|
|
ifr.ifr_buffer.length = strlen(val) + 1;
|
|
if (ifr.ifr_buffer.length == 1) {
|
|
ifr.ifr_buffer.buffer = newdescr = NULL;
|
|
ifr.ifr_buffer.length = 0;
|
|
} else {
|
|
newdescr = strdup(val);
|
|
ifr.ifr_buffer.buffer = newdescr;
|
|
if (newdescr == NULL) {
|
|
warn("no memory to set ifdescr");
|
|
return;
|
|
}
|
|
}
|
|
|
|
if (ioctl(s, SIOCSIFDESCR, (caddr_t)&ifr) < 0)
|
|
err(1, "ioctl SIOCSIFDESCR (set descr)");
|
|
|
|
free(newdescr);
|
|
}
|
|
|
|
/* ARGSUSED */
|
|
static void
|
|
unsetifdescr(const char *val, int value, int s, const struct afswtch *afp)
|
|
{
|
|
|
|
setifdescr("", 0, s, 0);
|
|
}
|
|
|
|
#define IFFBITS \
|
|
"\020\1UP\2BROADCAST\3DEBUG\4LOOPBACK\5POINTOPOINT\7RUNNING" \
|
|
"\10NOARP\11PROMISC\12ALLMULTI\13OACTIVE\14SIMPLEX\15LINK0\16LINK1\17LINK2" \
|
|
"\20MULTICAST\22PPROMISC\23MONITOR\24STATICARP"
|
|
|
|
#define IFCAPBITS \
|
|
"\020\1RXCSUM\2TXCSUM\3NETCONS\4VLAN_MTU\5VLAN_HWTAGGING\6JUMBO_MTU\7POLLING" \
|
|
"\10VLAN_HWCSUM\11TSO4\12TSO6\13LRO\14WOL_UCAST\15WOL_MCAST\16WOL_MAGIC" \
|
|
"\17TOE4\20TOE6\21VLAN_HWFILTER\23VLAN_HWTSO\24LINKSTATE\25NETMAP" \
|
|
"\26RXCSUM_IPV6\27TXCSUM_IPV6\31TXRTLMT\32HWRXTSTMP\33NOMAP"
|
|
|
|
/*
|
|
* Print the status of the interface. If an address family was
|
|
* specified, show only it; otherwise, show them all.
|
|
*/
|
|
static void
|
|
status(const struct afswtch *afp, const struct sockaddr_dl *sdl,
|
|
struct ifaddrs *ifa)
|
|
{
|
|
struct ifaddrs *ift;
|
|
int allfamilies, s;
|
|
struct ifstat ifs;
|
|
|
|
if (afp == NULL) {
|
|
allfamilies = 1;
|
|
ifr.ifr_addr.sa_family = AF_LOCAL;
|
|
} else {
|
|
allfamilies = 0;
|
|
ifr.ifr_addr.sa_family =
|
|
afp->af_af == AF_LINK ? AF_LOCAL : afp->af_af;
|
|
}
|
|
strlcpy(ifr.ifr_name, name, sizeof(ifr.ifr_name));
|
|
|
|
s = socket(ifr.ifr_addr.sa_family, SOCK_DGRAM, 0);
|
|
if (s < 0)
|
|
err(1, "socket(family %u,SOCK_DGRAM)", ifr.ifr_addr.sa_family);
|
|
|
|
printf("%s: ", name);
|
|
printb("flags", ifa->ifa_flags, IFFBITS);
|
|
if (ioctl(s, SIOCGIFMETRIC, &ifr) != -1)
|
|
printf(" metric %d", ifr.ifr_metric);
|
|
if (ioctl(s, SIOCGIFMTU, &ifr) != -1)
|
|
printf(" mtu %d", ifr.ifr_mtu);
|
|
putchar('\n');
|
|
|
|
for (;;) {
|
|
if ((descr = reallocf(descr, descrlen)) != NULL) {
|
|
ifr.ifr_buffer.buffer = descr;
|
|
ifr.ifr_buffer.length = descrlen;
|
|
if (ioctl(s, SIOCGIFDESCR, &ifr) == 0) {
|
|
if (ifr.ifr_buffer.buffer == descr) {
|
|
if (strlen(descr) > 0)
|
|
printf("\tdescription: %s\n",
|
|
descr);
|
|
} else if (ifr.ifr_buffer.length > descrlen) {
|
|
descrlen = ifr.ifr_buffer.length;
|
|
continue;
|
|
}
|
|
}
|
|
} else
|
|
warn("unable to allocate memory for interface"
|
|
"description");
|
|
break;
|
|
}
|
|
|
|
if (ioctl(s, SIOCGIFCAP, (caddr_t)&ifr) == 0) {
|
|
if (ifr.ifr_curcap != 0) {
|
|
printb("\toptions", ifr.ifr_curcap, IFCAPBITS);
|
|
putchar('\n');
|
|
}
|
|
if (supmedia && ifr.ifr_reqcap != 0) {
|
|
printb("\tcapabilities", ifr.ifr_reqcap, IFCAPBITS);
|
|
putchar('\n');
|
|
}
|
|
}
|
|
|
|
tunnel_status(s);
|
|
|
|
for (ift = ifa; ift != NULL; ift = ift->ifa_next) {
|
|
if (ift->ifa_addr == NULL)
|
|
continue;
|
|
if (strcmp(ifa->ifa_name, ift->ifa_name) != 0)
|
|
continue;
|
|
if (allfamilies) {
|
|
const struct afswtch *p;
|
|
p = af_getbyfamily(ift->ifa_addr->sa_family);
|
|
if (p != NULL && p->af_status != NULL)
|
|
p->af_status(s, ift);
|
|
} else if (afp->af_af == ift->ifa_addr->sa_family)
|
|
afp->af_status(s, ift);
|
|
}
|
|
#if 0
|
|
if (allfamilies || afp->af_af == AF_LINK) {
|
|
const struct afswtch *lafp;
|
|
|
|
/*
|
|
* Hack; the link level address is received separately
|
|
* from the routing information so any address is not
|
|
* handled above. Cobble together an entry and invoke
|
|
* the status method specially.
|
|
*/
|
|
lafp = af_getbyname("lladdr");
|
|
if (lafp != NULL) {
|
|
info.rti_info[RTAX_IFA] = (struct sockaddr *)sdl;
|
|
lafp->af_status(s, &info);
|
|
}
|
|
}
|
|
#endif
|
|
if (allfamilies)
|
|
af_other_status(s);
|
|
else if (afp->af_other_status != NULL)
|
|
afp->af_other_status(s);
|
|
|
|
strlcpy(ifs.ifs_name, name, sizeof ifs.ifs_name);
|
|
if (ioctl(s, SIOCGIFSTATUS, &ifs) == 0)
|
|
printf("%s", ifs.ascii);
|
|
|
|
if (verbose > 0)
|
|
sfp_status(s, &ifr, verbose);
|
|
|
|
close(s);
|
|
return;
|
|
}
|
|
|
|
static void
|
|
tunnel_status(int s)
|
|
{
|
|
af_all_tunnel_status(s);
|
|
}
|
|
|
|
void
|
|
Perror(const char *cmd)
|
|
{
|
|
switch (errno) {
|
|
|
|
case ENXIO:
|
|
errx(1, "%s: no such interface", cmd);
|
|
break;
|
|
|
|
case EPERM:
|
|
errx(1, "%s: permission denied", cmd);
|
|
break;
|
|
|
|
default:
|
|
err(1, "%s", cmd);
|
|
}
|
|
}
|
|
|
|
/*
|
|
* Print a value a la the %b format of the kernel's printf
|
|
*/
|
|
void
|
|
printb(const char *s, unsigned v, const char *bits)
|
|
{
|
|
int i, any = 0;
|
|
char c;
|
|
|
|
if (bits && *bits == 8)
|
|
printf("%s=%o", s, v);
|
|
else
|
|
printf("%s=%x", s, v);
|
|
if (bits) {
|
|
bits++;
|
|
putchar('<');
|
|
while ((i = *bits++) != '\0') {
|
|
if (v & (1 << (i-1))) {
|
|
if (any)
|
|
putchar(',');
|
|
any = 1;
|
|
for (; (c = *bits) > 32; bits++)
|
|
putchar(c);
|
|
} else
|
|
for (; *bits > 32; bits++)
|
|
;
|
|
}
|
|
putchar('>');
|
|
}
|
|
}
|
|
|
|
void
|
|
print_vhid(const struct ifaddrs *ifa, const char *s)
|
|
{
|
|
struct if_data *ifd;
|
|
|
|
if (ifa->ifa_data == NULL)
|
|
return;
|
|
|
|
ifd = ifa->ifa_data;
|
|
if (ifd->ifi_vhid == 0)
|
|
return;
|
|
|
|
printf(" vhid %d", ifd->ifi_vhid);
|
|
}
|
|
|
|
void
|
|
ifmaybeload(const char *name)
|
|
{
|
|
#define MOD_PREFIX_LEN 3 /* "if_" */
|
|
struct module_stat mstat;
|
|
int i, fileid, modid;
|
|
char ifkind[IFNAMSIZ + MOD_PREFIX_LEN], ifname[IFNAMSIZ], *dp;
|
|
const char *cp;
|
|
struct module_map_entry *mme;
|
|
bool found;
|
|
|
|
/* loading suppressed by the user */
|
|
if (noload)
|
|
return;
|
|
|
|
/* trim the interface number off the end */
|
|
strlcpy(ifname, name, sizeof(ifname));
|
|
for (dp = ifname; *dp != 0; dp++)
|
|
if (isdigit(*dp)) {
|
|
*dp = 0;
|
|
break;
|
|
}
|
|
|
|
/* Either derive it from the map or guess otherwise */
|
|
*ifkind = '\0';
|
|
found = false;
|
|
for (i = 0; i < nitems(module_map); ++i) {
|
|
mme = &module_map[i];
|
|
if (strcmp(mme->ifname, ifname) == 0) {
|
|
strlcpy(ifkind, mme->kldname, sizeof(ifkind));
|
|
found = true;
|
|
break;
|
|
}
|
|
}
|
|
|
|
/* We didn't have an alias for it... we'll guess. */
|
|
if (!found) {
|
|
/* turn interface and unit into module name */
|
|
strlcpy(ifkind, "if_", sizeof(ifkind));
|
|
strlcat(ifkind, ifname, sizeof(ifkind));
|
|
}
|
|
|
|
/* scan files in kernel */
|
|
mstat.version = sizeof(struct module_stat);
|
|
for (fileid = kldnext(0); fileid > 0; fileid = kldnext(fileid)) {
|
|
/* scan modules in file */
|
|
for (modid = kldfirstmod(fileid); modid > 0;
|
|
modid = modfnext(modid)) {
|
|
if (modstat(modid, &mstat) < 0)
|
|
continue;
|
|
/* strip bus name if present */
|
|
if ((cp = strchr(mstat.name, '/')) != NULL) {
|
|
cp++;
|
|
} else {
|
|
cp = mstat.name;
|
|
}
|
|
/*
|
|
* Is it already loaded? Don't compare with ifname if
|
|
* we were specifically told which kld to use. Doing
|
|
* so could lead to conflicts not trivially solved.
|
|
*/
|
|
if ((!found && strcmp(ifname, cp) == 0) ||
|
|
strcmp(ifkind, cp) == 0)
|
|
return;
|
|
}
|
|
}
|
|
|
|
/*
|
|
* Try to load the module. But ignore failures, because ifconfig can't
|
|
* infer the names of all drivers (eg mlx4en(4)).
|
|
*/
|
|
(void) kldload(ifkind);
|
|
}
|
|
|
|
static struct cmd basic_cmds[] = {
|
|
DEF_CMD("up", IFF_UP, setifflags),
|
|
DEF_CMD("down", -IFF_UP, setifflags),
|
|
DEF_CMD("arp", -IFF_NOARP, setifflags),
|
|
DEF_CMD("-arp", IFF_NOARP, setifflags),
|
|
DEF_CMD("debug", IFF_DEBUG, setifflags),
|
|
DEF_CMD("-debug", -IFF_DEBUG, setifflags),
|
|
DEF_CMD_ARG("description", setifdescr),
|
|
DEF_CMD_ARG("descr", setifdescr),
|
|
DEF_CMD("-description", 0, unsetifdescr),
|
|
DEF_CMD("-descr", 0, unsetifdescr),
|
|
DEF_CMD("promisc", IFF_PPROMISC, setifflags),
|
|
DEF_CMD("-promisc", -IFF_PPROMISC, setifflags),
|
|
DEF_CMD("add", IFF_UP, notealias),
|
|
DEF_CMD("alias", IFF_UP, notealias),
|
|
DEF_CMD("-alias", -IFF_UP, notealias),
|
|
DEF_CMD("delete", -IFF_UP, notealias),
|
|
DEF_CMD("remove", -IFF_UP, notealias),
|
|
#ifdef notdef
|
|
#define EN_SWABIPS 0x1000
|
|
DEF_CMD("swabips", EN_SWABIPS, setifflags),
|
|
DEF_CMD("-swabips", -EN_SWABIPS, setifflags),
|
|
#endif
|
|
DEF_CMD_ARG("netmask", setifnetmask),
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DEF_CMD_ARG("metric", setifmetric),
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DEF_CMD_ARG("broadcast", setifbroadaddr),
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DEF_CMD_ARG2("tunnel", settunnel),
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DEF_CMD("-tunnel", 0, deletetunnel),
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DEF_CMD("deletetunnel", 0, deletetunnel),
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#ifdef JAIL
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DEF_CMD_ARG("vnet", setifvnet),
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DEF_CMD_ARG("-vnet", setifrvnet),
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#endif
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DEF_CMD("link0", IFF_LINK0, setifflags),
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DEF_CMD("-link0", -IFF_LINK0, setifflags),
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|
DEF_CMD("link1", IFF_LINK1, setifflags),
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|
DEF_CMD("-link1", -IFF_LINK1, setifflags),
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|
DEF_CMD("link2", IFF_LINK2, setifflags),
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|
DEF_CMD("-link2", -IFF_LINK2, setifflags),
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|
DEF_CMD("monitor", IFF_MONITOR, setifflags),
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|
DEF_CMD("-monitor", -IFF_MONITOR, setifflags),
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|
DEF_CMD("nomap", IFCAP_NOMAP, setifcap),
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|
DEF_CMD("-nomap", -IFCAP_NOMAP, setifcap),
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|
DEF_CMD("staticarp", IFF_STATICARP, setifflags),
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|
DEF_CMD("-staticarp", -IFF_STATICARP, setifflags),
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|
DEF_CMD("rxcsum6", IFCAP_RXCSUM_IPV6, setifcap),
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|
DEF_CMD("-rxcsum6", -IFCAP_RXCSUM_IPV6, setifcap),
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|
DEF_CMD("txcsum6", IFCAP_TXCSUM_IPV6, setifcap),
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|
DEF_CMD("-txcsum6", -IFCAP_TXCSUM_IPV6, setifcap),
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|
DEF_CMD("rxcsum", IFCAP_RXCSUM, setifcap),
|
|
DEF_CMD("-rxcsum", -IFCAP_RXCSUM, setifcap),
|
|
DEF_CMD("txcsum", IFCAP_TXCSUM, setifcap),
|
|
DEF_CMD("-txcsum", -IFCAP_TXCSUM, setifcap),
|
|
DEF_CMD("netcons", IFCAP_NETCONS, setifcap),
|
|
DEF_CMD("-netcons", -IFCAP_NETCONS, setifcap),
|
|
DEF_CMD_ARG("pcp", setifpcp),
|
|
DEF_CMD("-pcp", 0, disableifpcp),
|
|
DEF_CMD("polling", IFCAP_POLLING, setifcap),
|
|
DEF_CMD("-polling", -IFCAP_POLLING, setifcap),
|
|
DEF_CMD("tso6", IFCAP_TSO6, setifcap),
|
|
DEF_CMD("-tso6", -IFCAP_TSO6, setifcap),
|
|
DEF_CMD("tso4", IFCAP_TSO4, setifcap),
|
|
DEF_CMD("-tso4", -IFCAP_TSO4, setifcap),
|
|
DEF_CMD("tso", IFCAP_TSO, setifcap),
|
|
DEF_CMD("-tso", -IFCAP_TSO, setifcap),
|
|
DEF_CMD("toe", IFCAP_TOE, setifcap),
|
|
DEF_CMD("-toe", -IFCAP_TOE, setifcap),
|
|
DEF_CMD("lro", IFCAP_LRO, setifcap),
|
|
DEF_CMD("-lro", -IFCAP_LRO, setifcap),
|
|
DEF_CMD("wol", IFCAP_WOL, setifcap),
|
|
DEF_CMD("-wol", -IFCAP_WOL, setifcap),
|
|
DEF_CMD("wol_ucast", IFCAP_WOL_UCAST, setifcap),
|
|
DEF_CMD("-wol_ucast", -IFCAP_WOL_UCAST, setifcap),
|
|
DEF_CMD("wol_mcast", IFCAP_WOL_MCAST, setifcap),
|
|
DEF_CMD("-wol_mcast", -IFCAP_WOL_MCAST, setifcap),
|
|
DEF_CMD("wol_magic", IFCAP_WOL_MAGIC, setifcap),
|
|
DEF_CMD("-wol_magic", -IFCAP_WOL_MAGIC, setifcap),
|
|
DEF_CMD("txrtlmt", IFCAP_TXRTLMT, setifcap),
|
|
DEF_CMD("-txrtlmt", -IFCAP_TXRTLMT, setifcap),
|
|
DEF_CMD("hwrxtstmp", IFCAP_HWRXTSTMP, setifcap),
|
|
DEF_CMD("-hwrxtstmp", -IFCAP_HWRXTSTMP, setifcap),
|
|
DEF_CMD("normal", -IFF_LINK0, setifflags),
|
|
DEF_CMD("compress", IFF_LINK0, setifflags),
|
|
DEF_CMD("noicmp", IFF_LINK1, setifflags),
|
|
DEF_CMD_ARG("mtu", setifmtu),
|
|
DEF_CMD_ARG("name", setifname),
|
|
};
|
|
|
|
static __constructor void
|
|
ifconfig_ctor(void)
|
|
{
|
|
size_t i;
|
|
|
|
for (i = 0; i < nitems(basic_cmds); i++)
|
|
cmd_register(&basic_cmds[i]);
|
|
}
|