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libifconfig: multiple feature additions

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Added the ability to:

* Create virtual interfaces
* Create vlan interfaces
* Get interface fib
* Get interface groups
* Get interface status
* Get nd6 info
* Get media status
* Get additional ifaddr info in a convenient struct
* Get vhids
* Get carp info
* Get lagg and laggport status
* Iterate over all interfaces and ifaddrs

And add more examples, too.

Note that this is a backwards-incompatible change. But that's ok, because it's
a private library.

MFC after:	3 weeks
Sponsored by:	Spectra Logic Corp
Differential Revision:	https://reviews.freebsd.org/D14463
This commit is contained in:
Alan Somers 2018-02-23 03:11:43 +00:00
parent beaafe4f86
commit b1d757bc1d
19 changed files with 2037 additions and 162 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

6
lib/libifconfig/Makefile
View File

@ -8,7 +8,9 @@ NO_PIC=
SHLIBDIR?= /lib SHLIBDIR?= /lib
SHLIB_MAJOR= 1 SHLIB_MAJOR= 1
SRCS= libifconfig.c libifconfig_internal.c SRCS= libifconfig.c libifconfig_carp.c libifconfig_inet.c
SRCS+= libifconfig_inet6.c libifconfig_internal.c libifconfig_lagg.c
SRCS+= libifconfig_media.c
INCSDIR= ${INCLUDEDIR} INCSDIR= ${INCLUDEDIR}
INCS= libifconfig.h INCS= libifconfig.h
@ -16,6 +18,6 @@ INCS= libifconfig.h
#MAN= libifconfig.3 #MAN= libifconfig.3
CFLAGS+= -I${.CURDIR} CFLAGS+= -I${.CURDIR}
WARNS?=6 NO_WCAST_ALIGN= yes
.include <bsd.lib.mk> .include <bsd.lib.mk>

370
lib/libifconfig/libifconfig.c
View File

@ -1,38 +1,7 @@
/*
* Copyright (c) 2016, Marie Helene Kvello-Aune
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without modification,
* are permitted provided that the following conditions are met:
*
* 1. Redistributions of source code must retain the above copyright notice,
* thislist 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 copyright holder nor the names of its contributors
* may be used to endorse or promote products derived from this software without
* specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
* AND 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 COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
* 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) HOWEVER
* CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*
* $FreeBSD$
*/
/* /*
* Copyright (c) 1983, 1993 * Copyright (c) 1983, 1993
* The Regents of the University of California. All rights reserved. * The Regents of the University of California. All rights reserved.
* Copyright (c) 2016-2017, Marie Helene Kvello-Aune. All rights reserved.
* *
* Redistribution and use in source and binary forms, with or without * Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions * modification, are permitted provided that the following conditions
@ -61,65 +30,63 @@
* $FreeBSD$ * $FreeBSD$
*/ */
/*
* Copyright 1996 Massachusetts Institute of Technology
*
* Permission to use, copy, modify, and distribute this software and
* its documentation for any purpose and without fee is hereby
* granted, provided that both the above copyright notice and this
* permission notice appear in all copies, that both the above
* copyright notice and this permission notice appear in all
* supporting documentation, and that the name of M.I.T. not be used
* in advertising or publicity pertaining to distribution of the
* software without specific, written prior permission. M.I.T. makes
* no representations about the suitability of this software for any
* purpose. It is provided "as is" without express or implied
* warranty.
*
* THIS SOFTWARE IS PROVIDED BY M.I.T. ``AS IS''. M.I.T. DISCLAIMS
* ALL EXPRESS OR IMPLIED WARRANTIES WITH REGARD TO THIS SOFTWARE,
* INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
* MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. IN NO EVENT
* SHALL M.I.T. BE LIABLE 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) HOWEVER CAUSED AND
* ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
* OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*
* $FreeBSD$
*/
#include <sys/types.h> #include <sys/types.h>
#include <sys/ioctl.h> #include <sys/ioctl.h>
#include <sys/sysctl.h> #include <sys/sysctl.h>
#include <net/if.h> #include <net/if.h>
#include <net/if_mib.h> #include <net/if_mib.h>
#include <netinet/in.h>
#include <netinet6/in6_var.h>
#include <netinet6/nd6.h>
#include <err.h> #include <err.h>
#include <errno.h> #include <errno.h>
#include <fcntl.h> #include <fcntl.h>
#include <ifaddrs.h>
#include <stdbool.h>
#include <stdio.h> #include <stdio.h>
#include <stdlib.h> #include <stdlib.h>
#include <string.h> #include <string.h>
#include <unistd.h> #include <unistd.h>
#include <net/if_vlan_var.h>
#include "libifconfig.h" #include "libifconfig.h"
#include "libifconfig_internal.h" #include "libifconfig_internal.h"
#define NOTAG ((u_short) -1)
static bool
isnd6defif(ifconfig_handle_t *h, const char *name)
{
struct in6_ndifreq ndifreq;
unsigned int ifindex;
memset(&ndifreq, 0, sizeof(ndifreq));
strlcpy(ndifreq.ifname, name, sizeof(ndifreq.ifname));
ifindex = if_nametoindex(ndifreq.ifname);
if (ifconfig_ioctlwrap(h, AF_INET6, SIOCGDEFIFACE_IN6, &ndifreq) < 0) {
return (false);
}
h->error.errtype = OK;
return (ndifreq.ifindex == ifindex);
}
ifconfig_handle_t * ifconfig_handle_t *
ifconfig_open(void) ifconfig_open(void)
{ {
struct ifconfig_handle *h; ifconfig_handle_t *h;
h = calloc(1, sizeof(*h)); h = calloc(1, sizeof(*h));
if (h == NULL) {
return (NULL);
}
for (int i = 0; i <= AF_MAX; i++) { for (int i = 0; i <= AF_MAX; i++) {
h->sockets[i] = -1; h->sockets[i] = -1;
} }
return (h); return (h);
} }
@ -132,6 +99,7 @@ ifconfig_close(ifconfig_handle_t *h)
(void)close(h->sockets[i]); (void)close(h->sockets[i]);
} }
} }
freeifaddrs(h->ifap);
free(h); free(h);
} }
@ -156,6 +124,46 @@ ifconfig_err_ioctlreq(ifconfig_handle_t *h)
return (h->error.ioctl_request); return (h->error.ioctl_request);
} }
int
ifconfig_foreach_iface(ifconfig_handle_t *h,
ifconfig_foreach_func_t cb, void *udata)
{
int ret;
ret = ifconfig_getifaddrs(h);
if (ret == 0) {
struct ifaddrs *ifa;
char *ifname = NULL;
for (ifa = h->ifap; ifa; ifa = ifa->ifa_next) {
if (ifname != ifa->ifa_name) {
ifname = ifa->ifa_name;
cb(h, ifa, udata);
}
}
}
/* Free ifaddrs so we don't accidentally cache stale data */
freeifaddrs(h->ifap);
h->ifap = NULL;
return (ret);
}
void
ifconfig_foreach_ifaddr(ifconfig_handle_t *h, struct ifaddrs *ifa,
ifconfig_foreach_func_t cb, void *udata)
{
struct ifaddrs *ift;
for (ift = ifa;
ift != NULL &&
ift->ifa_addr != NULL &&
strcmp(ift->ifa_name, ifa->ifa_name) == 0;
ift = ift->ifa_next) {
cb(h, ift, udata);
}
}
int int
ifconfig_get_description(ifconfig_handle_t *h, const char *name, ifconfig_get_description(ifconfig_handle_t *h, const char *name,
char **description) char **description)
@ -179,6 +187,7 @@ ifconfig_get_description(ifconfig_handle_t *h, const char *name,
ifr.ifr_buffer.buffer = descr; ifr.ifr_buffer.buffer = descr;
ifr.ifr_buffer.length = descrlen; ifr.ifr_buffer.length = descrlen;
if (ifconfig_ioctlwrap(h, AF_LOCAL, SIOCGIFDESCR, &ifr) != 0) { if (ifconfig_ioctlwrap(h, AF_LOCAL, SIOCGIFDESCR, &ifr) != 0) {
free(descr);
return (-1); return (-1);
} }
@ -186,6 +195,13 @@ ifconfig_get_description(ifconfig_handle_t *h, const char *name,
if (strlen(descr) > 0) { if (strlen(descr) > 0) {
*description = strdup(descr); *description = strdup(descr);
free(descr); free(descr);
if (description == NULL) {
h->error.errtype = OTHER;
h->error.errcode = ENOMEM;
return (-1);
}
return (0); return (0);
} }
} else if (ifr.ifr_buffer.length > descrlen) { } else if (ifr.ifr_buffer.length > descrlen) {
@ -228,8 +244,7 @@ ifconfig_set_description(ifconfig_handle_t *h, const char *name,
return (-1); return (-1);
} }
if (ifconfig_ioctlwrap(h, AF_LOCAL, SIOCSIFDESCR, if (ifconfig_ioctlwrap(h, AF_LOCAL, SIOCSIFDESCR, &ifr) != 0) {
&ifr) != 0) {
free(ifr.ifr_buffer.buffer); free(ifr.ifr_buffer.buffer);
return (-1); return (-1);
} }
@ -248,8 +263,7 @@ ifconfig_unset_description(ifconfig_handle_t *h, const char *name)
ifr.ifr_buffer.length = 0; ifr.ifr_buffer.length = 0;
ifr.ifr_buffer.buffer = NULL; ifr.ifr_buffer.buffer = NULL;
if (ifconfig_ioctlwrap(h, AF_LOCAL, SIOCSIFDESCR, if (ifconfig_ioctlwrap(h, AF_LOCAL, SIOCSIFDESCR, &ifr) < 0) {
&ifr) < 0) {
return (-1); return (-1);
} }
return (0); return (0);
@ -271,8 +285,7 @@ ifconfig_set_name(ifconfig_handle_t *h, const char *name, const char *newname)
(void)strlcpy(ifr.ifr_name, name, sizeof(ifr.ifr_name)); (void)strlcpy(ifr.ifr_name, name, sizeof(ifr.ifr_name));
ifr.ifr_data = tmpname; ifr.ifr_data = tmpname;
if (ifconfig_ioctlwrap(h, AF_LOCAL, SIOCSIFNAME, if (ifconfig_ioctlwrap(h, AF_LOCAL, SIOCSIFNAME, &ifr) != 0) {
&ifr) != 0) {
free(tmpname); free(tmpname);
return (-1); return (-1);
} }
@ -285,63 +298,62 @@ int
ifconfig_get_orig_name(ifconfig_handle_t *h, const char *ifname, ifconfig_get_orig_name(ifconfig_handle_t *h, const char *ifname,
char **orig_name) char **orig_name)
{ {
struct ifmibdata ifmd;
size_t len; size_t len;
unsigned int ifindex;
int name[6]; int name[6];
int i, maxifno;
ifindex = if_nametoindex(ifname);
if (ifindex == 0) {
goto fail;
}
name[0] = CTL_NET; name[0] = CTL_NET;
name[1] = PF_LINK; name[1] = PF_LINK;
name[2] = NETLINK_GENERIC; name[2] = NETLINK_GENERIC;
name[3] = IFMIB_SYSTEM;
name[4] = IFMIB_IFCOUNT;
len = sizeof maxifno;
if (sysctl(name, 5, &maxifno, &len, 0, 0) < 0) {
h->error.errtype = OTHER;
h->error.errcode = errno;
return (-1);
}
name[3] = IFMIB_IFDATA; name[3] = IFMIB_IFDATA;
name[5] = IFDATA_GENERAL; name[4] = ifindex;
for (i = 1; i <= maxifno; i++) { name[5] = IFDATA_DRIVERNAME;
len = sizeof ifmd;
name[4] = i;
if (sysctl(name, 6, &ifmd, &len, 0, 0) < 0) {
if (errno == ENOENT)
continue;
goto fail; len = 0;
} if (sysctl(name, 6, NULL, &len, 0, 0) < 0) {
goto fail;
if (strncmp(ifmd.ifmd_name, ifname, IFNAMSIZ) != 0)
continue;
len = 0;
name[5] = IFDATA_DRIVERNAME;
if (sysctl(name, 6, NULL, &len, 0, 0) < 0)
goto fail;
*orig_name = malloc(len);
if (*orig_name == NULL)
goto fail;
if (sysctl(name, 6, *orig_name, &len, 0, 0) < 0) {
free(*orig_name);
*orig_name = NULL;
goto fail;
}
return (0);
} }
*orig_name = malloc(len);
if (*orig_name == NULL) {
goto fail;
}
if (sysctl(name, 6, *orig_name, &len, 0, 0) < 0) {
free(*orig_name);
*orig_name = NULL;
goto fail;
}
return (0);
fail: fail:
h->error.errtype = OTHER; h->error.errtype = OTHER;
h->error.errcode = (i <= maxifno) ? errno : ENOENT; h->error.errcode = (errno != 0) ? errno : ENOENT;
return (-1); return (-1);
} }
int
ifconfig_get_fib(ifconfig_handle_t *h, const char *name, int *fib)
{
struct ifreq ifr;
memset(&ifr, 0, sizeof(ifr));
(void)strlcpy(ifr.ifr_name, name, sizeof(ifr.ifr_name));
if (ifconfig_ioctlwrap(h, AF_LOCAL, SIOCGIFFIB, &ifr) == -1) {
return (-1);
}
*fib = ifr.ifr_fib;
return (0);
}
int int
ifconfig_set_mtu(ifconfig_handle_t *h, const char *name, const int mtu) ifconfig_set_mtu(ifconfig_handle_t *h, const char *name, const int mtu)
{ {
@ -351,8 +363,7 @@ ifconfig_set_mtu(ifconfig_handle_t *h, const char *name, const int mtu)
(void)strlcpy(ifr.ifr_name, name, sizeof(ifr.ifr_name)); (void)strlcpy(ifr.ifr_name, name, sizeof(ifr.ifr_name));
ifr.ifr_mtu = mtu; ifr.ifr_mtu = mtu;
if (ifconfig_ioctlwrap(h, AF_LOCAL, SIOCSIFMTU, if (ifconfig_ioctlwrap(h, AF_LOCAL, SIOCSIFMTU, &ifr) < 0) {
&ifr) < 0) {
return (-1); return (-1);
} }
@ -367,8 +378,7 @@ ifconfig_get_mtu(ifconfig_handle_t *h, const char *name, int *mtu)
memset(&ifr, 0, sizeof(ifr)); memset(&ifr, 0, sizeof(ifr));
(void)strlcpy(ifr.ifr_name, name, sizeof(ifr.ifr_name)); (void)strlcpy(ifr.ifr_name, name, sizeof(ifr.ifr_name));
if (ifconfig_ioctlwrap(h, AF_LOCAL, SIOCGIFMTU, if (ifconfig_ioctlwrap(h, AF_LOCAL, SIOCGIFMTU, &ifr) == -1) {
&ifr) == -1) {
return (-1); return (-1);
} }
@ -376,6 +386,24 @@ ifconfig_get_mtu(ifconfig_handle_t *h, const char *name, int *mtu)
return (0); return (0);
} }
int
ifconfig_get_nd6(ifconfig_handle_t *h, const char *name,
struct in6_ndireq *nd)
{
memset(nd, 0, sizeof(*nd));
strlcpy(nd->ifname, name, sizeof(nd->ifname));
if (ifconfig_ioctlwrap(h, AF_INET6, SIOCGIFINFO_IN6, nd) == -1) {
return (-1);
}
if (isnd6defif(h, name)) {
nd->ndi.flags |= ND6_IFF_DEFAULTIF;
} else if (h->error.errtype != OK) {
return (-1);
}
return (0);
}
int int
ifconfig_set_metric(ifconfig_handle_t *h, const char *name, const int metric) ifconfig_set_metric(ifconfig_handle_t *h, const char *name, const int metric)
{ {
@ -385,8 +413,7 @@ ifconfig_set_metric(ifconfig_handle_t *h, const char *name, const int metric)
(void)strlcpy(ifr.ifr_name, name, sizeof(ifr.ifr_name)); (void)strlcpy(ifr.ifr_name, name, sizeof(ifr.ifr_name));
ifr.ifr_metric = metric; ifr.ifr_metric = metric;
if (ifconfig_ioctlwrap(h, AF_LOCAL, SIOCSIFMETRIC, if (ifconfig_ioctlwrap(h, AF_LOCAL, SIOCSIFMETRIC, &ifr) < 0) {
&ifr) < 0) {
return (-1); return (-1);
} }
@ -401,8 +428,7 @@ ifconfig_get_metric(ifconfig_handle_t *h, const char *name, int *metric)
memset(&ifr, 0, sizeof(ifr)); memset(&ifr, 0, sizeof(ifr));
(void)strlcpy(ifr.ifr_name, name, sizeof(ifr.ifr_name)); (void)strlcpy(ifr.ifr_name, name, sizeof(ifr.ifr_name));
if (ifconfig_ioctlwrap(h, AF_LOCAL, SIOCGIFMETRIC, if (ifconfig_ioctlwrap(h, AF_LOCAL, SIOCGIFMETRIC, &ifr) == -1) {
&ifr) == -1) {
return (-1); return (-1);
} }
@ -420,8 +446,7 @@ ifconfig_set_capability(ifconfig_handle_t *h, const char *name,
memset(&ifr, 0, sizeof(ifr)); memset(&ifr, 0, sizeof(ifr));
if (ifconfig_get_capability(h, name, if (ifconfig_get_capability(h, name, &ifcap) != 0) {
&ifcap) != 0) {
return (-1); return (-1);
} }
@ -442,8 +467,7 @@ ifconfig_set_capability(ifconfig_handle_t *h, const char *name,
* set for this request. * set for this request.
*/ */
ifr.ifr_reqcap = flags; ifr.ifr_reqcap = flags;
if (ifconfig_ioctlwrap(h, AF_LOCAL, SIOCSIFCAP, if (ifconfig_ioctlwrap(h, AF_LOCAL, SIOCSIFCAP, &ifr) < 0) {
&ifr) < 0) {
return (-1); return (-1);
} }
return (0); return (0);
@ -458,8 +482,7 @@ ifconfig_get_capability(ifconfig_handle_t *h, const char *name,
memset(&ifr, 0, sizeof(ifr)); memset(&ifr, 0, sizeof(ifr));
(void)strlcpy(ifr.ifr_name, name, sizeof(ifr.ifr_name)); (void)strlcpy(ifr.ifr_name, name, sizeof(ifr.ifr_name));
if (ifconfig_ioctlwrap(h, AF_LOCAL, SIOCGIFCAP, if (ifconfig_ioctlwrap(h, AF_LOCAL, SIOCGIFCAP, &ifr) < 0) {
&ifr) < 0) {
return (-1); return (-1);
} }
capability->curcap = ifr.ifr_curcap; capability->curcap = ifr.ifr_curcap;
@ -467,6 +490,45 @@ ifconfig_get_capability(ifconfig_handle_t *h, const char *name,
return (0); return (0);
} }
int
ifconfig_get_groups(ifconfig_handle_t *h, const char *name,
struct ifgroupreq *ifgr)
{
int len;
memset(ifgr, 0, sizeof(*ifgr));
strlcpy(ifgr->ifgr_name, name, IFNAMSIZ);
if (ifconfig_ioctlwrap(h, AF_LOCAL, SIOCGIFGROUP, ifgr) == -1) {
if ((h->error.errcode == EINVAL) ||
(h->error.errcode == ENOTTY)) {
return (0);
} else {
return (-1);
}
}
len = ifgr->ifgr_len;
ifgr->ifgr_groups = (struct ifg_req *)malloc(len);
if (ifgr->ifgr_groups == NULL) {
return (1);
}
bzero(ifgr->ifgr_groups, len);
if (ifconfig_ioctlwrap(h, AF_LOCAL, SIOCGIFGROUP, ifgr) == -1) {
return (-1);
}
return (0);
}
int
ifconfig_get_ifstatus(ifconfig_handle_t *h, const char *name,
struct ifstat *ifs)
{
strlcpy(ifs->ifs_name, name, sizeof(ifs->ifs_name));
return (ifconfig_ioctlwrap(h, AF_LOCAL, SIOCGIFSTATUS, ifs));
}
int int
ifconfig_destroy_interface(ifconfig_handle_t *h, const char *name) ifconfig_destroy_interface(ifconfig_handle_t *h, const char *name)
{ {
@ -475,8 +537,7 @@ ifconfig_destroy_interface(ifconfig_handle_t *h, const char *name)
memset(&ifr, 0, sizeof(ifr)); memset(&ifr, 0, sizeof(ifr));
(void)strlcpy(ifr.ifr_name, name, sizeof(ifr.ifr_name)); (void)strlcpy(ifr.ifr_name, name, sizeof(ifr.ifr_name));
if (ifconfig_ioctlwrap(h, AF_LOCAL, SIOCIFDESTROY, if (ifconfig_ioctlwrap(h, AF_LOCAL, SIOCIFDESTROY, &ifr) < 0) {
&ifr) < 0) {
return (-1); return (-1);
} }
return (0); return (0);
@ -488,6 +549,7 @@ ifconfig_create_interface(ifconfig_handle_t *h, const char *name, char **ifname)
struct ifreq ifr; struct ifreq ifr;
memset(&ifr, 0, sizeof(ifr)); memset(&ifr, 0, sizeof(ifr));
(void)strlcpy(ifr.ifr_name, name, sizeof(ifr.ifr_name)); (void)strlcpy(ifr.ifr_name, name, sizeof(ifr.ifr_name));
/* /*
@ -512,5 +574,57 @@ ifconfig_create_interface(ifconfig_handle_t *h, const char *name, char **ifname)
} }
*ifname = strdup(ifr.ifr_name); *ifname = strdup(ifr.ifr_name);
if (ifname == NULL) {
h->error.errtype = OTHER;
h->error.errcode = ENOMEM;
return (-1);
}
return (0);
}
int
ifconfig_create_interface_vlan(ifconfig_handle_t *h, const char *name,
char **ifname, const char *vlandev, const unsigned short vlantag)
{
struct ifreq ifr;
struct vlanreq params;
if ((vlantag == NOTAG) || (vlandev[0] == '\0')) {
// TODO: Add proper error tracking here
return (-1);
}
bzero(&params, sizeof(params));
(void)strlcpy(ifr.ifr_name, name, sizeof(ifr.ifr_name));
params.vlr_tag = vlantag;
(void)strlcpy(params.vlr_parent, vlandev, sizeof(params.vlr_parent));
ifr.ifr_data = (caddr_t)&params;
if (ifconfig_ioctlwrap(h, AF_LOCAL, SIOCIFCREATE2, &ifr) < 0) {
// TODO: Add proper error tracking here
return (-1);
}
*ifname = strdup(ifr.ifr_name);
return (0);
}
int
ifconfig_set_vlantag(ifconfig_handle_t *h, const char *name,
const char *vlandev, const unsigned short vlantag)
{
struct ifreq ifr;
struct vlanreq params;
bzero(&params, sizeof(params));
params.vlr_tag = vlantag;
strlcpy(params.vlr_parent, vlandev, sizeof(params.vlr_parent));
ifr.ifr_data = (caddr_t)&params;
(void)strlcpy(ifr.ifr_name, name, sizeof(ifr.ifr_name));
if (ifconfig_ioctlwrap(h, AF_LOCAL, SIOCSETVLAN, &ifr) == -1) {
return (-1);
}
return (0); return (0);
} }

159
lib/libifconfig/libifconfig.h
View File

@ -1,5 +1,5 @@
/* /*
* Copyright (c) 2016, Marie Helene Kvello-Aune * Copyright (c) 2016-2017, Marie Helene Kvello-Aune
* All rights reserved. * All rights reserved.
* *
* Redistribution and use in source and binary forms, with or without modification, * Redistribution and use in source and binary forms, with or without modification,
@ -28,8 +28,16 @@
#pragma once #pragma once
#include <netinet/in.h>
#include <netinet6/in6_var.h>
#define ND6_IFF_DEFAULTIF 0x8000
typedef enum { typedef enum {
OTHER, IOCTL, SOCKET OK = 0,
OTHER,
IOCTL,
SOCKET
} ifconfig_errtype; } ifconfig_errtype;
/* /*
@ -37,7 +45,15 @@ typedef enum {
* pointer to it for library use. * pointer to it for library use.
*/ */
struct ifconfig_handle; struct ifconfig_handle;
typedef struct ifconfig_handle ifconfig_handle_t; typedef struct ifconfig_handle ifconfig_handle_t;
struct carpreq;
struct ifaddrs;
struct in6_ndireq;
struct lagg_reqall;
struct lagg_reqflags;
struct lagg_reqopts;
struct lagg_reqport;
struct ifconfig_capabilities { struct ifconfig_capabilities {
/** Current capabilities (ifconfig prints this as 'options')*/ /** Current capabilities (ifconfig prints this as 'options')*/
@ -46,13 +62,44 @@ struct ifconfig_capabilities {
int reqcap; int reqcap;
}; };
/** Stores extra info associated with an inet address */
struct ifconfig_inet_addr {
const struct sockaddr_in *sin;
const struct sockaddr_in *netmask;
const struct sockaddr_in *dst;
const struct sockaddr_in *broadcast;
int prefixlen;
uint8_t vhid;
};
/** Stores extra info associated with an inet6 address */
struct ifconfig_inet6_addr {
struct sockaddr_in6 *sin6;
struct sockaddr_in6 *dstin6;
struct in6_addrlifetime lifetime;
int prefixlen;
uint32_t flags;
uint8_t vhid;
};
/** Stores extra info associated with a lagg(4) interface */
struct ifconfig_lagg_status {
struct lagg_reqall *ra;
struct lagg_reqopts *ro;
struct lagg_reqflags *rf;
};
/** Retrieves a new state object for use in other API calls. /** Retrieves a new state object for use in other API calls.
* Example usage: * Example usage:
*{@code *{@code
* // Create state object * // Create state object
* ifconfig_handle_t *lifh = ifconfig_open(); * ifconfig_handle_t *lifh;
* lifh = ifconfig_open();
* if (lifh == NULL) {
* // Handle error
* }
* *
* // Do stuff with it * // Do stuff with the handle
* *
* // Dispose of the state object * // Dispose of the state object
* ifconfig_close(lifh); * ifconfig_close(lifh);
@ -73,6 +120,28 @@ ifconfig_errtype ifconfig_err_errtype(ifconfig_handle_t *h);
/** Retrieves the errno associated with the error, if any. */ /** Retrieves the errno associated with the error, if any. */
int ifconfig_err_errno(ifconfig_handle_t *h); int ifconfig_err_errno(ifconfig_handle_t *h);
typedef void (*ifconfig_foreach_func_t)(ifconfig_handle_t *h,
struct ifaddrs *ifa, void *udata);
/** Iterate over every network interface
* @param h An open ifconfig state object
* @param cb A callback function to call with a pointer to each interface
* @param udata An opaque value that will be passed to the callback.
* @return 0 on success, nonzero if the list could not be iterated
*/
int ifconfig_foreach_iface(ifconfig_handle_t *h, ifconfig_foreach_func_t cb,
void *udata);
/** Iterate over every address on a single network interface
* @param h An open ifconfig state object
* @param ifa A pointer that was supplied by a previous call to
* ifconfig_foreach_iface
* @param udata An opaque value that will be passed to the callback.
* @param cb A callback function to call with a pointer to each ifaddr
*/
void ifconfig_foreach_ifaddr(ifconfig_handle_t *h, struct ifaddrs *ifa,
ifconfig_foreach_func_t cb, void *udata);
/** If error type was IOCTL, this identifies which request failed. */ /** If error type was IOCTL, this identifies which request failed. */
unsigned long ifconfig_err_ioctlreq(ifconfig_handle_t *h); unsigned long ifconfig_err_ioctlreq(ifconfig_handle_t *h);
int ifconfig_get_description(ifconfig_handle_t *h, const char *name, int ifconfig_get_description(ifconfig_handle_t *h, const char *name,
@ -84,8 +153,12 @@ int ifconfig_set_name(ifconfig_handle_t *h, const char *name,
const char *newname); const char *newname);
int ifconfig_get_orig_name(ifconfig_handle_t *h, const char *ifname, int ifconfig_get_orig_name(ifconfig_handle_t *h, const char *ifname,
char **orig_name); char **orig_name);
int ifconfig_set_fib(ifconfig_handle_t *h, const char *name, int fib);
int ifconfig_get_fib(ifconfig_handle_t *h, const char *name, int *fib);
int ifconfig_set_mtu(ifconfig_handle_t *h, const char *name, const int mtu); int ifconfig_set_mtu(ifconfig_handle_t *h, const char *name, const int mtu);
int ifconfig_get_mtu(ifconfig_handle_t *h, const char *name, int *mtu); int ifconfig_get_mtu(ifconfig_handle_t *h, const char *name, int *mtu);
int ifconfig_get_nd6(ifconfig_handle_t *h, const char *name,
struct in6_ndireq *nd);
int ifconfig_set_metric(ifconfig_handle_t *h, const char *name, int ifconfig_set_metric(ifconfig_handle_t *h, const char *name,
const int metric); const int metric);
int ifconfig_get_metric(ifconfig_handle_t *h, const char *name, int *metric); int ifconfig_get_metric(ifconfig_handle_t *h, const char *name, int *metric);
@ -94,6 +167,70 @@ int ifconfig_set_capability(ifconfig_handle_t *h, const char *name,
int ifconfig_get_capability(ifconfig_handle_t *h, const char *name, int ifconfig_get_capability(ifconfig_handle_t *h, const char *name,
struct ifconfig_capabilities *capability); struct ifconfig_capabilities *capability);
/** Retrieve the list of groups to which this interface belongs
* @param h An open ifconfig state object
* @param name The interface name
* @param ifgr return argument. The caller is responsible for freeing
* ifgr->ifgr_groups
* @return 0 on success, nonzero on failure
*/
int ifconfig_get_groups(ifconfig_handle_t *h, const char *name,
struct ifgroupreq *ifgr);
int ifconfig_get_ifstatus(ifconfig_handle_t *h, const char *name,
struct ifstat *stat);
/** Retrieve the interface media information
* @param h An open ifconfig state object
* @param name The interface name
* @param ifmr Return argument. The caller is responsible for freeing it
* @return 0 on success, nonzero on failure
*/
int ifconfig_media_get_mediareq(ifconfig_handle_t *h, const char *name,
struct ifmediareq **ifmr);
const char *ifconfig_media_get_type(int ifmw);
const char *ifconfig_media_get_subtype(int ifmw);
const char *ifconfig_media_get_status(const struct ifmediareq *ifmr);
void ifconfig_media_get_options_string(int ifmw, char *buf, size_t buflen);
int ifconfig_carp_get_info(ifconfig_handle_t *h, const char *name,
struct carpreq *carpr, int ncarpr);
/** Retrieve additional information about an inet address
* @param h An open ifconfig state object
* @param name The interface name
* @param ifa Pointer to the the address structure of interest
* @param addr Return argument. It will be filled with additional information
* about the address.
* @return 0 on success, nonzero on failure.
*/
int ifconfig_inet_get_addrinfo(ifconfig_handle_t *h,
const char *name, struct ifaddrs *ifa, struct ifconfig_inet_addr *addr);
/** Retrieve additional information about an inet6 address
* @param h An open ifconfig state object
* @param name The interface name
* @param ifa Pointer to the the address structure of interest
* @param addr Return argument. It will be filled with additional information
* about the address.
* @return 0 on success, nonzero on failure.
*/
int ifconfig_inet6_get_addrinfo(ifconfig_handle_t *h,
const char *name, struct ifaddrs *ifa, struct ifconfig_inet6_addr *addr);
/** Retrieve additional information about a lagg(4) interface */
int ifconfig_lagg_get_lagg_status(ifconfig_handle_t *h,
const char *name, struct ifconfig_lagg_status **lagg_status);
/** Retrieve additional information about a member of a lagg(4) interface */
int ifconfig_lagg_get_laggport_status(ifconfig_handle_t *h,
const char *name, struct lagg_reqport *rp);
/** Frees the structure returned by ifconfig_lagg_get_status. Does nothing if
* the argument is NULL
* @param laggstat Pointer to the structure to free
*/
void ifconfig_lagg_free_lagg_status(struct ifconfig_lagg_status *laggstat);
/** Destroy a virtual interface /** Destroy a virtual interface
* @param name Interface to destroy * @param name Interface to destroy
*/ */
@ -105,3 +242,15 @@ int ifconfig_destroy_interface(ifconfig_handle_t *h, const char *name);
*/ */
int ifconfig_create_interface(ifconfig_handle_t *h, const char *name, int ifconfig_create_interface(ifconfig_handle_t *h, const char *name,
char **ifname); char **ifname);
/** Creates a (virtual) interface
* @param name Name of interface to create. Example: vlan0 or ix0.50
* @param name ifname Is set to actual name of created interface
* @param vlandev Name of interface to attach to
* @param vlanid VLAN ID/Tag. Must not be 0.
*/
int ifconfig_create_interface_vlan(ifconfig_handle_t *h, const char *name,
char **ifname, const char *vlandev, const unsigned short vlantag);
int ifconfig_set_vlantag(ifconfig_handle_t *h, const char *name,
const char *vlandev, const unsigned short vlantag);

60
lib/libifconfig/libifconfig_carp.c Normal file
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@ -0,0 +1,60 @@
/*
* Copyright (c) 1983, 1993
* 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
* 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.
*
* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
* 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
* 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)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*
* $FreeBSD$
*/
#include <sys/param.h>
#include <sys/ioctl.h>
#include <net/if.h>
#include <netinet/ip_carp.h>
#include <string.h>
#include <strings.h>
#include "libifconfig.h"
#include "libifconfig_internal.h"
int
ifconfig_carp_get_info(ifconfig_handle_t *h, const char *name,
struct carpreq *carpr, int ncarpr)
{
struct ifreq ifr;
bzero(carpr, sizeof(struct carpreq) * ncarpr);
carpr[0].carpr_count = ncarpr;
strlcpy(ifr.ifr_name, name, sizeof(ifr.ifr_name));
ifr.ifr_data = (caddr_t)carpr;
if (ifconfig_ioctlwrap(h, AF_LOCAL, SIOCGVH, &ifr) != 0) {
return (-1);
}
return (0);
}

98
lib/libifconfig/libifconfig_inet.c Normal file
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@ -0,0 +1,98 @@
/*
* Copyright (c) 1983, 1993
* 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
* 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.
*
* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
* 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
* 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)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*
* $FreeBSD$
*/
#include <sys/param.h>
#include <sys/ioctl.h>
#include <net/if.h>
#include <netinet/in.h>
#include <errno.h>
#include <ifaddrs.h>
#include <string.h>
#include <strings.h>
#include "libifconfig.h"
#include "libifconfig_internal.h"
static const struct sockaddr_in NULL_SIN;
static int
inet_prefixlen(const struct in_addr *addr)
{
int x;
x = ffs(ntohl(addr->s_addr));
return (x == 0 ? 0 : 33 - x);
}
int
ifconfig_inet_get_addrinfo(ifconfig_handle_t *h __unused,
const char *name __unused, struct ifaddrs *ifa,
struct ifconfig_inet_addr *addr)
{
bzero(addr, sizeof(*addr));
/* Set the address */
if (ifa->ifa_addr == NULL) {
return (-1);
} else {
addr->sin = (struct sockaddr_in *)ifa->ifa_addr;
}
/* Set the destination address */
if (ifa->ifa_flags & IFF_POINTOPOINT) {
if (ifa->ifa_dstaddr) {
addr->dst = (struct sockaddr_in *)ifa->ifa_dstaddr;
} else {
addr->dst = &NULL_SIN;
}
}
/* Set the netmask and prefixlen */
if (ifa->ifa_netmask) {
addr->netmask = (struct sockaddr_in *)ifa->ifa_netmask;
} else {
addr->netmask = &NULL_SIN;
}
addr->prefixlen = inet_prefixlen(&addr->netmask->sin_addr);
/* Set the broadcast */
if (ifa->ifa_flags & IFF_BROADCAST) {
addr->broadcast = (struct sockaddr_in *)ifa->ifa_broadaddr;
}
/* Set the vhid */
if (ifa->ifa_data) {
addr->vhid = ((struct if_data *)ifa->ifa_data)->ifi_vhid;
}
return (0);
}

105
lib/libifconfig/libifconfig_inet6.c Normal file
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@ -0,0 +1,105 @@
/*
* Copyright (c) 1983, 1993
* 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
* 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.
*
* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
* 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
* 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)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*
* $FreeBSD$
*/
#include <sys/param.h>
#include <sys/ioctl.h>
#include <net/if.h>
#include <netinet/in.h>
#include <errno.h>
#include <ifaddrs.h>
#include <string.h>
#include <strings.h>
#include "libifconfig.h"
#include "libifconfig_internal.h"
static int
inet6_prefixlen(struct in6_addr *addr)
{
int prefixlen = 0;
int i;
for (i = 0; i < 4; i++) {
int x = ffs(ntohl(addr->__u6_addr.__u6_addr32[i]));
prefixlen += x == 0 ? 0 : 33 - x;
if (x != 1) {
break;
}
}
return (prefixlen);
}
int
ifconfig_inet6_get_addrinfo(ifconfig_handle_t *h,
const char *name, struct ifaddrs *ifa, struct ifconfig_inet6_addr *addr)
{
struct sockaddr_in6 *netmask;
struct in6_ifreq ifr6;
bzero(addr, sizeof(*addr));
/* Set the address */
addr->sin6 = (struct sockaddr_in6 *)ifa->ifa_addr;
/* Set the destination address */
if (ifa->ifa_flags & IFF_POINTOPOINT) {
addr->dstin6 = (struct sockaddr_in6 *)ifa->ifa_dstaddr;
}
/* Set the prefixlen */
netmask = (struct sockaddr_in6 *)ifa->ifa_netmask;
addr->prefixlen = inet6_prefixlen(&netmask->sin6_addr);
/* Set the flags */
strlcpy(ifr6.ifr_name, name, sizeof(ifr6.ifr_name));
ifr6.ifr_addr = *addr->sin6;
if (ifconfig_ioctlwrap(h, AF_INET6, SIOCGIFAFLAG_IN6, &ifr6) < 0) {
return (-1);
}
addr->flags = ifr6.ifr_ifru.ifru_flags6;
/* Set the lifetimes */
memset(&addr->lifetime, 0, sizeof(addr->lifetime));
ifr6.ifr_addr = *addr->sin6;
if (ifconfig_ioctlwrap(h, AF_INET6, SIOCGIFALIFETIME_IN6, &ifr6) < 0) {
return (-1);
}
addr->lifetime = ifr6.ifr_ifru.ifru_lifetime; /* struct copy */
/* Set the vhid */
if (ifa->ifa_data && ifa->ifa_data) {
addr->vhid = ((struct if_data *)ifa->ifa_data)->ifi_vhid;
}
return (0);
}

30
lib/libifconfig/libifconfig_internal.c
View File

@ -1,5 +1,5 @@
/* /*
* Copyright (c) 2016, Marie Helene Kvello-Aune * Copyright (c) 2016-2017, Marie Helene Kvello-Aune
* All rights reserved. * All rights reserved.
* *
* Redistribution and use in source and binary forms, with or without modification, * Redistribution and use in source and binary forms, with or without modification,
@ -31,6 +31,7 @@
#include <net/if.h> #include <net/if.h>
#include <errno.h> #include <errno.h>
#include <ifaddrs.h>
#include <stdio.h> #include <stdio.h>
#include <stdlib.h> #include <stdlib.h>
#include <unistd.h> #include <unistd.h>
@ -38,23 +39,22 @@
#include "libifconfig.h" // Needed for ifconfig_errstate #include "libifconfig.h" // Needed for ifconfig_errstate
#include "libifconfig_internal.h" #include "libifconfig_internal.h"
int int
ifconfig_ioctlwrap_ret(ifconfig_handle_t *h, unsigned long request, int rcode) ifconfig_getifaddrs(ifconfig_handle_t *h)
{ {
int ret;
if (rcode != 0) { if (h->ifap == NULL) {
h->error.errtype = IOCTL; ret = getifaddrs(&h->ifap);
h->error.ioctl_request = request; return (ret);
h->error.errcode = errno; } else {
return (0);
} }
return (rcode);
} }
int int
ifconfig_ioctlwrap(ifconfig_handle_t *h, const int addressfamily, ifconfig_ioctlwrap(ifconfig_handle_t *h, const int addressfamily,
unsigned long request, struct ifreq *ifr) unsigned long request, void *data)
{ {
int s; int s;
@ -62,8 +62,14 @@ ifconfig_ioctlwrap(ifconfig_handle_t *h, const int addressfamily,
return (-1); return (-1);
} }
int rcode = ioctl(s, request, ifr); if (ioctl(s, request, data) != 0) {
return (ifconfig_ioctlwrap_ret(h, request, rcode)); h->error.errtype = IOCTL;
h->error.ioctl_request = request;
h->error.errcode = errno;
return (-1);
}
return (0);
} }
/* /*

13
lib/libifconfig/libifconfig_internal.h
View File

@ -1,5 +1,5 @@
/* /*
* Copyright (c) 2016, Marie Helene Kvello-Aune * Copyright (c) 2016-2017, Marie Helene Kvello-Aune
* All rights reserved. * All rights reserved.
* *
* Redistribution and use in source and binary forms, with or without modification, * Redistribution and use in source and binary forms, with or without modification,
@ -52,8 +52,13 @@ struct errstate {
struct ifconfig_handle { struct ifconfig_handle {
struct errstate error; struct errstate error;
int sockets[AF_MAX + 1]; int sockets[AF_MAX + 1];
/** Cached output of getifaddrs */
struct ifaddrs *ifap;
}; };
/* Fetch the list of interface addrs, if it hasn't already been fetched */
int ifconfig_getifaddrs(ifconfig_handle_t *h);
/** /**
* Retrieves socket for address family <paramref name="addressfamily"> from * Retrieves socket for address family <paramref name="addressfamily"> from
* cache, or creates it if it doesn't already exist. * cache, or creates it if it doesn't already exist.
@ -75,10 +80,6 @@ struct ifconfig_handle {
*/ */
int ifconfig_socket(ifconfig_handle_t *h, const int addressfamily, int *s); int ifconfig_socket(ifconfig_handle_t *h, const int addressfamily, int *s);
/** Function used by other wrapper functions to populate _errstate when appropriate.*/
int ifconfig_ioctlwrap_ret(ifconfig_handle_t *h, unsigned long request,
int rcode);
/** Function to wrap ioctl() and automatically populate ifconfig_errstate when appropriate.*/ /** Function to wrap ioctl() and automatically populate ifconfig_errstate when appropriate.*/
int ifconfig_ioctlwrap(ifconfig_handle_t *h, const int addressfamily, int ifconfig_ioctlwrap(ifconfig_handle_t *h, const int addressfamily,
unsigned long request, struct ifreq *ifr); unsigned long request, void *data);

107
lib/libifconfig/libifconfig_lagg.c Normal file
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@ -0,0 +1,107 @@
/*
* Copyright (c) 1983, 1993
* 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
* 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.
*
* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
* 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
* 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)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*
* $FreeBSD$
*/
#include <sys/param.h>
#include <sys/ioctl.h>
#include <net/ethernet.h>
#include <net/if.h>
#include <net/if_lagg.h>
#include <net/ieee8023ad_lacp.h>
#include <assert.h>
#include <errno.h>
#include <stdlib.h>
#include <string.h>
#include "libifconfig.h"
#include "libifconfig_internal.h"
/* Internal structure used for allocations and frees */
struct _ifconfig_lagg_status {
struct ifconfig_lagg_status l; /* Must be first */
struct lagg_reqall ra;
struct lagg_reqopts ro;
struct lagg_reqflags rf;
struct lagg_reqport rpbuf[LAGG_MAX_PORTS];
};
int
ifconfig_lagg_get_laggport_status(ifconfig_handle_t *h,
const char *name, struct lagg_reqport *rp)
{
strlcpy(rp->rp_ifname, name, sizeof(rp->rp_portname));
strlcpy(rp->rp_portname, name, sizeof(rp->rp_portname));
return (ifconfig_ioctlwrap(h, AF_LOCAL, SIOCGLAGGPORT, rp));
}
int
ifconfig_lagg_get_lagg_status(ifconfig_handle_t *h,
const char *name, struct ifconfig_lagg_status **lagg_status)
{
struct _ifconfig_lagg_status *ls;
ls = calloc(1, sizeof(struct _ifconfig_lagg_status));
if (ls == NULL) {
h->error.errtype = OTHER;
h->error.errcode = ENOMEM;
return (-1);
}
ls->l.ra = &ls->ra;
ls->l.ro = &ls->ro;
ls->l.rf = &ls->rf;
*lagg_status = &ls->l;
ls->ra.ra_port = ls->rpbuf;
ls->ra.ra_size = sizeof(ls->rpbuf);
strlcpy(ls->ro.ro_ifname, name, sizeof(ls->ro.ro_ifname));
ifconfig_ioctlwrap(h, AF_LOCAL, SIOCGLAGGOPTS, &ls->ro);
strlcpy(ls->rf.rf_ifname, name, sizeof(ls->rf.rf_ifname));
if (ifconfig_ioctlwrap(h, AF_LOCAL, SIOCGLAGGFLAGS, &ls->rf) != 0) {
ls->rf.rf_flags = 0;
}
strlcpy(ls->ra.ra_ifname, name, sizeof(ls->ra.ra_ifname));
if (ifconfig_ioctlwrap(h, AF_LOCAL, SIOCGLAGG, &ls->ra) != 0) {
free(ls);
return (-1);
}
return (0);
}
void
ifconfig_lagg_free_lagg_status(struct ifconfig_lagg_status *laggstat)
{
free(laggstat);
}

457
lib/libifconfig/libifconfig_media.c Normal file
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@ -0,0 +1,457 @@
/*
* Copyright (c) 1983, 1993
* 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
* 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.
*
* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
* 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
* 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)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*
* $FreeBSD$
*/
#include <sys/param.h>
#include <sys/ioctl.h>
#include <sys/socket.h>
#include <sys/sysctl.h>
#include <sys/time.h>
#include <net/if.h>
#include <net/if_dl.h>
#include <net/if_types.h>
#include <net/if_media.h>
#include <net/route.h>
#include <assert.h>
#include <ctype.h>
#include <err.h>
#include <errno.h>
#include <fcntl.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <unistd.h>
#include "libifconfig.h"
#include "libifconfig_internal.h"
static struct ifmedia_description *get_toptype_desc(int);
static struct ifmedia_type_to_subtype *get_toptype_ttos(int);
static struct ifmedia_description *get_subtype_desc(int,
struct ifmedia_type_to_subtype *ttos);
#define IFM_OPMODE(x) \
((x) & (IFM_IEEE80211_ADHOC | IFM_IEEE80211_HOSTAP | \
IFM_IEEE80211_IBSS | IFM_IEEE80211_WDS | IFM_IEEE80211_MONITOR | \
IFM_IEEE80211_MBSS))
#define IFM_IEEE80211_STA 0
static struct ifmedia_description ifm_type_descriptions[] =
IFM_TYPE_DESCRIPTIONS;
static struct ifmedia_description ifm_subtype_ethernet_descriptions[] =
IFM_SUBTYPE_ETHERNET_DESCRIPTIONS;
static struct ifmedia_description ifm_subtype_ethernet_aliases[] =
IFM_SUBTYPE_ETHERNET_ALIASES;
static struct ifmedia_description ifm_subtype_ethernet_option_descriptions[] =
IFM_SUBTYPE_ETHERNET_OPTION_DESCRIPTIONS;
static struct ifmedia_description ifm_subtype_tokenring_descriptions[] =
IFM_SUBTYPE_TOKENRING_DESCRIPTIONS;
static struct ifmedia_description ifm_subtype_tokenring_aliases[] =
IFM_SUBTYPE_TOKENRING_ALIASES;
static struct ifmedia_description ifm_subtype_tokenring_option_descriptions[] =
IFM_SUBTYPE_TOKENRING_OPTION_DESCRIPTIONS;
static struct ifmedia_description ifm_subtype_fddi_descriptions[] =
IFM_SUBTYPE_FDDI_DESCRIPTIONS;
static struct ifmedia_description ifm_subtype_fddi_aliases[] =
IFM_SUBTYPE_FDDI_ALIASES;
static struct ifmedia_description ifm_subtype_fddi_option_descriptions[] =
IFM_SUBTYPE_FDDI_OPTION_DESCRIPTIONS;
static struct ifmedia_description ifm_subtype_ieee80211_descriptions[] =
IFM_SUBTYPE_IEEE80211_DESCRIPTIONS;
static struct ifmedia_description ifm_subtype_ieee80211_aliases[] =
IFM_SUBTYPE_IEEE80211_ALIASES;
static struct ifmedia_description ifm_subtype_ieee80211_option_descriptions[] =
IFM_SUBTYPE_IEEE80211_OPTION_DESCRIPTIONS;
static struct ifmedia_description ifm_subtype_ieee80211_mode_descriptions[] =
IFM_SUBTYPE_IEEE80211_MODE_DESCRIPTIONS;
static struct ifmedia_description ifm_subtype_ieee80211_mode_aliases[] =
IFM_SUBTYPE_IEEE80211_MODE_ALIASES;
static struct ifmedia_description ifm_subtype_atm_descriptions[] =
IFM_SUBTYPE_ATM_DESCRIPTIONS;
static struct ifmedia_description ifm_subtype_atm_aliases[] =
IFM_SUBTYPE_ATM_ALIASES;
static struct ifmedia_description ifm_subtype_atm_option_descriptions[] =
IFM_SUBTYPE_ATM_OPTION_DESCRIPTIONS;
static struct ifmedia_description ifm_subtype_shared_descriptions[] =
IFM_SUBTYPE_SHARED_DESCRIPTIONS;
static struct ifmedia_description ifm_subtype_shared_aliases[] =
IFM_SUBTYPE_SHARED_ALIASES;
static struct ifmedia_description ifm_shared_option_descriptions[] =
IFM_SHARED_OPTION_DESCRIPTIONS;
static struct ifmedia_description ifm_shared_option_aliases[] =
IFM_SHARED_OPTION_ALIASES;
struct ifmedia_type_to_subtype {
struct {
struct ifmedia_description *desc;
int alias;
}
subtypes[5];
struct {
struct ifmedia_description *desc;
int alias;
}
options[4];
struct {
struct ifmedia_description *desc;
int alias;
}
modes[3];
};
/* must be in the same order as IFM_TYPE_DESCRIPTIONS */
static struct ifmedia_type_to_subtype ifmedia_types_to_subtypes[] =
{
{
{
{ &ifm_subtype_shared_descriptions[0], 0 },
{ &ifm_subtype_shared_aliases[0], 1 },
{ &ifm_subtype_ethernet_descriptions[0], 0 },
{ &ifm_subtype_ethernet_aliases[0], 1 },
{ NULL, 0 },
},
{
{ &ifm_shared_option_descriptions[0], 0 },
{ &ifm_shared_option_aliases[0], 1 },
{ &ifm_subtype_ethernet_option_descriptions[0], 0 },
{ NULL, 0 },
},
{
{ NULL, 0 },
},
},
{
{
{ &ifm_subtype_shared_descriptions[0], 0 },
{ &ifm_subtype_shared_aliases[0], 1 },
{ &ifm_subtype_tokenring_descriptions[0], 0 },
{ &ifm_subtype_tokenring_aliases[0], 1 },
{ NULL, 0 },
},
{
{ &ifm_shared_option_descriptions[0], 0 },
{ &ifm_shared_option_aliases[0], 1 },
{ &ifm_subtype_tokenring_option_descriptions[0], 0 },
{ NULL, 0 },
},
{
{ NULL, 0 },
},
},
{
{
{ &ifm_subtype_shared_descriptions[0], 0 },
{ &ifm_subtype_shared_aliases[0], 1 },
{ &ifm_subtype_fddi_descriptions[0], 0 },
{ &ifm_subtype_fddi_aliases[0], 1 },
{ NULL, 0 },
},
{
{ &ifm_shared_option_descriptions[0], 0 },
{ &ifm_shared_option_aliases[0], 1 },
{ &ifm_subtype_fddi_option_descriptions[0], 0 },
{ NULL, 0 },
},
{
{ NULL, 0 },
},
},
{
{
{ &ifm_subtype_shared_descriptions[0], 0 },
{ &ifm_subtype_shared_aliases[0], 1 },
{ &ifm_subtype_ieee80211_descriptions[0], 0 },
{ &ifm_subtype_ieee80211_aliases[0], 1 },
{ NULL, 0 },
},
{
{ &ifm_shared_option_descriptions[0], 0 },
{ &ifm_shared_option_aliases[0], 1 },
{ &ifm_subtype_ieee80211_option_descriptions[0], 0 },
{ NULL, 0 },
},
{
{ &ifm_subtype_ieee80211_mode_descriptions[0], 0 },
{ &ifm_subtype_ieee80211_mode_aliases[0], 0 },
{ NULL, 0 },
},
},
{
{
{ &ifm_subtype_shared_descriptions[0], 0 },
{ &ifm_subtype_shared_aliases[0], 1 },
{ &ifm_subtype_atm_descriptions[0], 0 },
{ &ifm_subtype_atm_aliases[0], 1 },
{ NULL, 0 },
},
{
{ &ifm_shared_option_descriptions[0], 0 },
{ &ifm_shared_option_aliases[0], 1 },
{ &ifm_subtype_atm_option_descriptions[0], 0 },
{ NULL, 0 },
},
{
{ NULL, 0 },
},
},
};
static struct ifmedia_description *
get_toptype_desc(int ifmw)
{
struct ifmedia_description *desc;
for (desc = ifm_type_descriptions; desc->ifmt_string != NULL; desc++) {
if (IFM_TYPE(ifmw) == desc->ifmt_word) {
break;
}
}
return (desc);
}
static struct ifmedia_type_to_subtype *
get_toptype_ttos(int ifmw)
{
struct ifmedia_description *desc;
struct ifmedia_type_to_subtype *ttos;
for (desc = ifm_type_descriptions, ttos = ifmedia_types_to_subtypes;
desc->ifmt_string != NULL; desc++, ttos++) {
if (IFM_TYPE(ifmw) == desc->ifmt_word) {
break;
}
}
return (ttos);
}
static struct ifmedia_description *
get_subtype_desc(int ifmw,
struct ifmedia_type_to_subtype *ttos)
{
int i;
struct ifmedia_description *desc;
for (i = 0; ttos->subtypes[i].desc != NULL; i++) {
if (ttos->subtypes[i].alias) {
continue;
}
for (desc = ttos->subtypes[i].desc;
desc->ifmt_string != NULL; desc++) {
if (IFM_SUBTYPE(ifmw) == desc->ifmt_word) {
return (desc);
}
}
}
return (NULL);
}
const char *
ifconfig_media_get_type(int ifmw)
{
struct ifmedia_description *desc;
/*int seen_option = 0, i;*/
/* Find the top-level interface type. */
desc = get_toptype_desc(ifmw);
if (desc->ifmt_string == NULL) {
return ("<unknown type>");
} else {
return (desc->ifmt_string);
}
}
const char *
ifconfig_media_get_subtype(int ifmw)
{
struct ifmedia_description *desc;
struct ifmedia_type_to_subtype *ttos;
ttos = get_toptype_ttos(ifmw);
desc = get_subtype_desc(ifmw, ttos);
return (desc->ifmt_string);
}
/***************************************************************************
* Above this point, this file is mostly copied from sbin/ifconfig/ifmedia.c
***************************************************************************/
/* Internal structure used for allocations and frees */
struct _ifconfig_media_status {
struct ifmediareq ifmr;
int medialist[0];
};
int
ifconfig_media_get_mediareq(ifconfig_handle_t *h, const char *name,
struct ifmediareq **ifmr)
{
struct _ifconfig_media_status *ms, *ms2;
unsigned long cmd = SIOCGIFXMEDIA;
*ifmr = NULL;
ms = calloc(1, sizeof(*ms));
if (ms == NULL) {
h->error.errtype = OTHER;
h->error.errcode = ENOMEM;
return (-1);
}
(void)memset(ms, 0, sizeof(*ms));
(void)strlcpy(ms->ifmr.ifm_name, name, sizeof(ms->ifmr.ifm_name));
/*
* Check if interface supports extended media types.
*/
if (ifconfig_ioctlwrap(h, AF_LOCAL, cmd, &ms->ifmr) < 0) {
cmd = SIOCGIFMEDIA;
if (ifconfig_ioctlwrap(h, AF_LOCAL, cmd, &ms->ifmr) < 0) {
/* Interface doesn't support SIOC{G,S}IFMEDIA. */
h->error.errtype = OK;
free(ms);
return (-1);
}
}
if (ms->ifmr.ifm_count == 0) {
*ifmr = &ms->ifmr;
return (0); /* Interface has no media types ?*/
}
ms2 = realloc(ms, sizeof(*ms) + sizeof(int) * ms->ifmr.ifm_count);
if (ms2 == NULL) {
h->error.errtype = OTHER;
h->error.errcode = ENOMEM;
free(ms);
return (-1);
}
ms2->ifmr.ifm_ulist = &ms2->medialist[0];
if (ifconfig_ioctlwrap(h, AF_LOCAL, cmd, &ms2->ifmr) < 0) {
free(ms2);
return (-1);
}
*ifmr = &ms2->ifmr;
return (0);
}
const char *
ifconfig_media_get_status(const struct ifmediareq *ifmr)
{
switch (IFM_TYPE(ifmr->ifm_active)) {
case IFM_ETHER:
case IFM_ATM:
if (ifmr->ifm_status & IFM_ACTIVE) {
return ("active");
} else {
return ("no carrier");
}
break;
case IFM_FDDI:
case IFM_TOKEN:
if (ifmr->ifm_status & IFM_ACTIVE) {
return ("inserted");
} else {
return ("no ring");
}
break;
case IFM_IEEE80211:
if (ifmr->ifm_status & IFM_ACTIVE) {
/* NB: only sta mode associates */
if (IFM_OPMODE(ifmr->ifm_active) == IFM_IEEE80211_STA) {
return ("associated");
} else {
return ("running");
}
} else {
return ("no carrier");
}
break;
default:
return ("");
}
}
void
ifconfig_media_get_options_string(int ifmw, char *buf, size_t buflen)
{
struct ifmedia_type_to_subtype *ttos;
struct ifmedia_description *desc;
int i, seen_option = 0;
size_t len;
assert(buflen > 0);
buf[0] = '\0';
ttos = get_toptype_ttos(ifmw);
for (i = 0; ttos->options[i].desc != NULL; i++) {
if (ttos->options[i].alias) {
continue;
}
for (desc = ttos->options[i].desc;
desc->ifmt_string != NULL; desc++) {
if (ifmw & desc->ifmt_word) {
if (seen_option++) {
strlcat(buf, ",", buflen);
}
len = strlcat(buf, desc->ifmt_string, buflen);
assert(len < buflen);
buf += len;
buflen -= len;
}
}
}
}

3
share/examples/libifconfig/Makefile
View File

@ -4,5 +4,8 @@ default:
$(CC) -Wall -fPIC -lifconfig -g -o example_setmtu setmtu.c $(CC) -Wall -fPIC -lifconfig -g -o example_setmtu setmtu.c
$(CC) -Wall -fPIC -lifconfig -g -o example_ifdestroy ifdestroy.c $(CC) -Wall -fPIC -lifconfig -g -o example_ifdestroy ifdestroy.c
$(CC) -Wall -fPIC -lifconfig -g -o example_ifcreate ifcreate.c $(CC) -Wall -fPIC -lifconfig -g -o example_ifcreate ifcreate.c
$(CC) -Wall -fPIC -lifconfig -g -o example_ifcreatevlan ifcreatevlan.c
$(CC) -Wall -fPIC -lifconfig -g -o example_ifchanagevlan ifchanagevlan.c
$(CC) -Wall -fPIC -lifconfig -g -o example_status status.c
clean: clean:
rm -f example_* rm -f example_*

109
share/examples/libifconfig/ifchangevlan.c Normal file
View File

@ -0,0 +1,109 @@
/*
* Copyright (c) 2017, Marie Helene Kvello-Aune
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without modification,
* are permitted provided that the following conditions are met:
*
* 1. Redistributions of source code must retain the above copyright notice,
* thislist 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.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
* AND 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 COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
* 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) HOWEVER
* CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*
* $FreeBSD$
*/
#include <err.h>
#include <errno.h>
#include <net/if.h>
#include <sys/ioctl.h>
#include <limits.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <libifconfig.h>
#include <net/if_vlan_var.h>
int
main(int argc, char *argv[])
{
char *ifname, *parentif;
unsigned short vlantag;
const char *errstr;
ifconfig_handle_t *lifh;
if (argc != 4) {
errx(EINVAL, "Invalid number of arguments."
" Should provide exactly three arguments: "
"INTERFACE, PARENT_INTERFACE and VLAN_TAG.");
}
/* We have a static number of arguments. Therefore we can do it simple. */
ifname = strdup(argv[1]);
parentif = strdup(argv[2]);
vlantag = strtonum(argv[3], 0, USHRT_MAX, &errstr);
if (errstr != NULL) {
errx(1, "VLAN_TAG must be between 0 and %i.\n", USHRT_MAX);
}
printf("Interface: %s\nNew VLAN tag: %i\n", ifname, vlantag);
lifh = ifconfig_open();
if (lifh == NULL) {
errx(ENOMEM, "Failed to open libifconfig handle.");
return (-1);
}
if (ifconfig_set_vlantag(lifh, ifname, parentif, vlantag) == 0) {
printf("Successfully changed vlan tag.\n");
ifconfig_close(lifh);
lifh = NULL;
free(ifname);
free(parentif);
return (0);
}
switch (ifconfig_err_errtype(lifh)) {
case SOCKET:
warnx("couldn't create socket. This shouldn't happen.\n");
break;
case IOCTL:
if (ifconfig_err_ioctlreq(lifh) == SIOCGETVLAN) {
warnx("Target interface isn't a VLAN interface.\n");
}
if (ifconfig_err_ioctlreq(lifh) == SIOCSETVLAN) {
warnx(
"Couldn't change VLAN properties of interface.\n");
}
break;
default:
warnx(
"This is a thorough example accommodating for temporary"
" 'not implemented yet' errors. That's likely what happened"
" now. If not, your guess is as good as mine. ;)"
" Error code: %d\n", ifconfig_err_errno(
lifh));
break;
}
ifconfig_close(lifh);
lifh = NULL;
free(ifname);
free(parentif);
return (-1);
}

10
share/examples/libifconfig/ifcreate.c
View File

@ -1,5 +1,5 @@
/* /*
* Copyright (c) 2016, Marie Helene Kvello-Aune * Copyright (c) 2016-2017, Marie Helene Kvello-Aune
* All rights reserved. * All rights reserved.
* *
* Redistribution and use in source and binary forms, with or without modification, * Redistribution and use in source and binary forms, with or without modification,
@ -40,6 +40,7 @@ int
main(int argc, char *argv[]) main(int argc, char *argv[])
{ {
char *ifname, *ifactualname; char *ifname, *ifactualname;
ifconfig_handle_t *lifh;
if (argc != 2) { if (argc != 2) {
errx(EINVAL, "Invalid number of arguments." errx(EINVAL, "Invalid number of arguments."
@ -52,7 +53,12 @@ main(int argc, char *argv[])
printf("Requested interface name: %s\n", ifname); printf("Requested interface name: %s\n", ifname);
ifconfig_handle_t *lifh = ifconfig_open(); lifh = ifconfig_open();
if (lifh == NULL) {
errx(ENOMEM, "Failed to open libifconfig handle.");
return (-1);
}
if (ifconfig_create_interface(lifh, ifname, &ifactualname) == 0) { if (ifconfig_create_interface(lifh, ifname, &ifactualname) == 0) {
printf("Successfully created interface '%s'\n", ifactualname); printf("Successfully created interface '%s'\n", ifactualname);
ifconfig_close(lifh); ifconfig_close(lifh);

105
share/examples/libifconfig/ifcreatevlan.c Normal file
View File

@ -0,0 +1,105 @@
/*
* Copyright (c) 2017, Marie Helene Kvello-Aune
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without modification,
* are permitted provided that the following conditions are met:
*
* 1. Redistributions of source code must retain the above copyright notice,
* thislist 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.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
* AND 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 COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
* 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) HOWEVER
* CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*
* $FreeBSD$
*/
#include <err.h>
#include <errno.h>
#include <net/if.h>
#include <sys/ioctl.h>
#include <limits.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <libifconfig.h>
int
main(int argc, char *argv[])
{
char *parentif, *ifactualname;
unsigned short vlantag;
const char *errstr;
ifconfig_handle_t *lifh;
if (argc != 3) {
errx(EINVAL, "Invalid number of arguments."
" Should provide exactly two arguments: "
"PARENT_INTERFACE and VLAN_TAG.");
}
/* We have a static number of arguments. Therefore we can do it simple. */
parentif = strdup(argv[1]);
vlantag = strtonum(argv[2], 0, USHRT_MAX, &errstr);
if (errstr != NULL) {
errx(1, "VLAN_TAG must be between 0 and %i.\n", USHRT_MAX);
}
printf("Parent interface: %s\nVLAN tag: %i\n", parentif, vlantag);
lifh = ifconfig_open();
if (lifh == NULL) {
errx(ENOMEM, "Failed to open libifconfig handle.");
return (-1);
}
if (ifconfig_create_interface_vlan(lifh, "vlan", &ifactualname,
parentif, vlantag) == 0) {
printf("Successfully created interface '%s'\n", ifactualname);
ifconfig_close(lifh);
lifh = NULL;
free(parentif);
free(ifactualname);
return (0);
}
switch (ifconfig_err_errtype(lifh)) {
case SOCKET:
warnx("couldn't create socket. This shouldn't happen.\n");
break;
case IOCTL:
if (ifconfig_err_ioctlreq(lifh) == SIOCIFCREATE2) {
warnx(
"Failed to create interface (SIOCIFCREATE2)\n");
}
break;
default:
warnx(
"This is a thorough example accommodating for temporary"
" 'not implemented yet' errors. That's likely what happened"
" now. If not, your guess is as good as mine. ;)"
" Error code: %d\n", ifconfig_err_errno(
lifh));
break;
}
ifconfig_close(lifh);
lifh = NULL;
free(parentif);
free(ifactualname);
return (-1);
}

10
share/examples/libifconfig/ifdestroy.c
View File

@ -1,5 +1,5 @@
/* /*
* Copyright (c) 2016, Marie Helene Kvello-Aune * Copyright (c) 2016-2017, Marie Helene Kvello-Aune
* All rights reserved. * All rights reserved.
* *
* Redistribution and use in source and binary forms, with or without modification, * Redistribution and use in source and binary forms, with or without modification,
@ -40,6 +40,7 @@ int
main(int argc, char *argv[]) main(int argc, char *argv[])
{ {
char *ifname; char *ifname;
ifconfig_handle_t *lifh;
if (argc != 2) { if (argc != 2) {
errx(EINVAL, "Invalid number of arguments." errx(EINVAL, "Invalid number of arguments."
@ -52,7 +53,12 @@ main(int argc, char *argv[])
printf("Interface name: %s\n", ifname); printf("Interface name: %s\n", ifname);
ifconfig_handle_t *lifh = ifconfig_open(); lifh = ifconfig_open();
if (lifh == NULL) {
errx(ENOMEM, "Failed to open libifconfig handle.");
return (-1);
}
if (ifconfig_destroy_interface(lifh, ifname) == 0) { if (ifconfig_destroy_interface(lifh, ifname) == 0) {
printf("Successfully destroyed interface '%s'.", ifname); printf("Successfully destroyed interface '%s'.", ifname);
ifconfig_close(lifh); ifconfig_close(lifh);

15
share/examples/libifconfig/setdescription.c
View File

@ -1,5 +1,5 @@
/* /*
* Copyright (c) 2016, Marie Helene Kvello-Aune * Copyright (c) 2016-2017, Marie Helene Kvello-Aune
* All rights reserved. * All rights reserved.
* *
* Redistribution and use in source and binary forms, with or without modification, * Redistribution and use in source and binary forms, with or without modification,
@ -26,6 +26,9 @@
* $FreeBSD$ * $FreeBSD$
*/ */
#include <arpa/inet.h>
#include <net/if.h>
#include <err.h> #include <err.h>
#include <errno.h> #include <errno.h>
#include <stdio.h> #include <stdio.h>
@ -38,6 +41,7 @@ int
main(int argc, char *argv[]) main(int argc, char *argv[])
{ {
char *ifname, *ifdescr, *curdescr; char *ifname, *ifdescr, *curdescr;
ifconfig_handle_t *lifh;
if (argc != 3) { if (argc != 3) {
errx(EINVAL, "Invalid number of arguments." errx(EINVAL, "Invalid number of arguments."
@ -52,7 +56,12 @@ main(int argc, char *argv[])
printf("Interface name: %s\n", ifname); printf("Interface name: %s\n", ifname);
ifconfig_handle_t *lifh = ifconfig_open(); lifh = ifconfig_open();
if (lifh == NULL) {
errx(ENOMEM, "Failed to open libifconfig handle.");
return (-1);
}
if (ifconfig_get_description(lifh, ifname, &curdescr) == 0) { if (ifconfig_get_description(lifh, ifname, &curdescr) == 0) {
printf("Old description: %s\n", curdescr); printf("Old description: %s\n", curdescr);
} }
@ -71,7 +80,7 @@ main(int argc, char *argv[])
lifh), "IOCTL(%lu) error", lifh), "IOCTL(%lu) error",
ifconfig_err_ioctlreq(lifh)); ifconfig_err_ioctlreq(lifh));
break; break;
case OTHER: default:
err(ifconfig_err_errno(lifh), "Other error"); err(ifconfig_err_errno(lifh), "Other error");
break; break;
} }

10
share/examples/libifconfig/setmtu.c
View File

@ -1,5 +1,5 @@
/* /*
* Copyright (c) 2016, Marie Helene Kvello-Aune * Copyright (c) 2016-2017, Marie Helene Kvello-Aune
* All rights reserved. * All rights reserved.
* *
* Redistribution and use in source and binary forms, with or without modification, * Redistribution and use in source and binary forms, with or without modification,
@ -42,6 +42,7 @@ main(int argc, char *argv[])
{ {
char *ifname, *ptr; char *ifname, *ptr;
int mtu; int mtu;
ifconfig_handle_t *lifh;
if (argc != 3) { if (argc != 3) {
errx(EINVAL, "Invalid number of arguments." errx(EINVAL, "Invalid number of arguments."
@ -56,7 +57,12 @@ main(int argc, char *argv[])
printf("Interface name: %s\n", ifname); printf("Interface name: %s\n", ifname);
printf("New MTU: %d", mtu); printf("New MTU: %d", mtu);
ifconfig_handle_t *lifh = ifconfig_open(); lifh = ifconfig_open();
if (lifh == NULL) {
errx(ENOMEM, "Failed to open libifconfig handle.");
return (-1);
}
if (ifconfig_set_mtu(lifh, ifname, mtu) == 0) { if (ifconfig_set_mtu(lifh, ifname, mtu) == 0) {
printf("Successfully changed MTU of %s to %d\n", ifname, mtu); printf("Successfully changed MTU of %s to %d\n", ifname, mtu);
ifconfig_close(lifh); ifconfig_close(lifh);

530
share/examples/libifconfig/status.c Normal file
View File

@ -0,0 +1,530 @@
/*
* Copyright (c) 2017, Spectra Logic Corporation
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without modification,
* are permitted provided that the following conditions are met:
*
* 1. Redistributions of source code must retain the above copyright notice,
* thislist 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.
*
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
* AND 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 COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
* 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) HOWEVER
* CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*
* $FreeBSD$
*/
#include <sys/param.h>
#include <sys/ioctl.h>
#include <sys/socket.h>
#include <arpa/inet.h>
#include <net/ethernet.h>
#include <net/if.h>
#include <net/if_dl.h>
#include <net/if_lagg.h>
#include <net/if_media.h>
#include <net/if_types.h>
#include <netinet/in.h>
#include <netinet/ip_carp.h>
#include <netinet6/in6_var.h>
#include <netinet6/nd6.h>
#include <err.h>
#include <errno.h>
#include <ifaddrs.h>
#include <netdb.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <libifconfig.h>
static const char *carp_states[] = { CARP_STATES };
static void
print_carp(ifconfig_handle_t *lifh, struct ifaddrs *ifa)
{
struct carpreq carpr[CARP_MAXVHID];
int i;
if (ifconfig_carp_get_info(lifh, ifa->ifa_name, carpr, CARP_MAXVHID)) {
return; /* Probably not configured on this interface */
}
for (i = 0; i < carpr[0].carpr_count; i++) {
printf("\tcarp: %s vhid %d advbase %d advskew %d",
carp_states[carpr[i].carpr_state], carpr[i].carpr_vhid,
carpr[i].carpr_advbase, carpr[i].carpr_advskew);
printf("\n");
}
}
static void
print_inet4_addr(ifconfig_handle_t *lifh, struct ifaddrs *ifa)
{
struct ifconfig_inet_addr addr;
char addr_buf[NI_MAXHOST];
if (ifconfig_inet_get_addrinfo(lifh, ifa->ifa_name, ifa, &addr) != 0) {
return;
}
inet_ntop(AF_INET, &addr.sin->sin_addr, addr_buf, sizeof(addr_buf));
printf("\tinet %s", addr_buf);
if (addr.dst) {
printf(" --> %s", inet_ntoa(addr.dst->sin_addr));
}
printf(" netmask 0x%x ", ntohl(addr.netmask->sin_addr.s_addr));
if ((addr.broadcast != NULL) &&
(addr.broadcast->sin_addr.s_addr != 0)) {
printf("broadcast %s ", inet_ntoa(addr.broadcast->sin_addr));
}
if (addr.vhid != 0) {
printf("vhid %d ", addr.vhid);
}
printf("\n");
}
static void
print_inet6_addr(ifconfig_handle_t *lifh, struct ifaddrs *ifa)
{
struct ifconfig_inet6_addr addr;
char addr_buf[NI_MAXHOST];
struct timespec now;
/* Print the address */
if (ifconfig_inet6_get_addrinfo(lifh, ifa->ifa_name, ifa, &addr) != 0) {
err(1, "ifconfig_inet6_get_addrinfo");
}
if (0 != getnameinfo((struct sockaddr *)addr.sin6, addr.sin6->sin6_len,
addr_buf, sizeof(addr_buf), NULL, 0, NI_NUMERICHOST)) {
inet_ntop(AF_INET6, &addr.sin6->sin6_addr, addr_buf,
sizeof(addr_buf));
}
printf("\tinet6 %s", addr_buf);
if (addr.dstin6) {
inet_ntop(AF_INET6, addr.dstin6, addr_buf, sizeof(addr_buf));
printf(" --> %s", addr_buf);
}
/* Print the netmask */
printf(" prefixlen %d ", addr.prefixlen);
/* Print the scopeid*/
if (addr.sin6->sin6_scope_id) {
printf("scopeid 0x%x ", addr.sin6->sin6_scope_id);
}
/* Print the flags */
if ((addr.flags & IN6_IFF_ANYCAST) != 0) {
printf("anycast ");
}
if ((addr.flags & IN6_IFF_TENTATIVE) != 0) {
printf("tentative ");
}
if ((addr.flags & IN6_IFF_DUPLICATED) != 0) {
printf("duplicated ");
}
if ((addr.flags & IN6_IFF_DETACHED) != 0) {
printf("detached ");
}
if ((addr.flags & IN6_IFF_DEPRECATED) != 0) {
printf("deprecated ");
}
if ((addr.flags & IN6_IFF_AUTOCONF) != 0) {
printf("autoconf ");
}
if ((addr.flags & IN6_IFF_TEMPORARY) != 0) {
printf("temporary ");
}
if ((addr.flags & IN6_IFF_PREFER_SOURCE) != 0) {
printf("prefer_source ");
}
/* Print the lifetimes */
clock_gettime(CLOCK_MONOTONIC_FAST, &now);
if (addr.lifetime.ia6t_preferred || addr.lifetime.ia6t_expire) {
printf("pltime ");
if (addr.lifetime.ia6t_preferred) {
printf("%ld ", MAX(0l,
addr.lifetime.ia6t_preferred - now.tv_sec));
} else {
printf("infty ");
}
printf("vltime ");
if (addr.lifetime.ia6t_expire) {
printf("%ld ", MAX(0l,
addr.lifetime.ia6t_expire - now.tv_sec));
} else {
printf("infty ");
}
}
/* Print the vhid */
if (addr.vhid != 0) {
printf("vhid %d ", addr.vhid);
}
printf("\n");
}
static void
print_link_addr(ifconfig_handle_t *lifh, struct ifaddrs *ifa)
{
char addr_buf[NI_MAXHOST];
struct sockaddr_dl *sdl;
int n;
sdl = (struct sockaddr_dl *)ifa->ifa_addr;
if ((sdl != NULL) && (sdl->sdl_alen > 0)) {
if (((sdl->sdl_type == IFT_ETHER) ||
(sdl->sdl_type == IFT_L2VLAN) ||
(sdl->sdl_type == IFT_BRIDGE)) &&
(sdl->sdl_alen == ETHER_ADDR_LEN)) {
ether_ntoa_r((struct ether_addr *)LLADDR(sdl),
addr_buf);
printf("\tether %s\n", addr_buf);
} else {
n = sdl->sdl_nlen > 0 ? sdl->sdl_nlen + 1 : 0;
printf("\tlladdr %s\n", link_ntoa(sdl) + n);
}
}
}
static void
print_ifaddr(ifconfig_handle_t *lifh, struct ifaddrs *ifa, void *udata __unused)
{
switch (ifa->ifa_addr->sa_family) {
case AF_INET:
print_inet4_addr(lifh, ifa);
break;
case AF_INET6:
/*
* printing AF_INET6 status requires calling SIOCGIFAFLAG_IN6
* and SIOCGIFALIFETIME_IN6. TODO: figure out the best way to
* do that from within libifconfig
*/
print_inet6_addr(lifh, ifa);
break;
case AF_LINK:
print_link_addr(lifh, ifa);
break;
case AF_LOCAL:
case AF_UNSPEC:
default:
/* TODO */
break;
}
}
static void
print_nd6(ifconfig_handle_t *lifh, struct ifaddrs *ifa)
{
struct in6_ndireq nd;
if (ifconfig_get_nd6(lifh, ifa->ifa_name, &nd) == 0) {
printf("\tnd6 options=%x\n", nd.ndi.flags);
} else {
err(1, "Failed to get nd6 options");
}
}
static void
print_fib(ifconfig_handle_t *lifh, struct ifaddrs *ifa)
{
int fib;
if (ifconfig_get_fib(lifh, ifa->ifa_name, &fib) == 0) {
printf("\tfib: %d\n", fib);
} else {
err(1, "Failed to get interface FIB");
}
}
static void
print_lagg(ifconfig_handle_t *lifh, struct ifaddrs *ifa)
{
struct lagg_protos lpr[] = LAGG_PROTOS;
struct ifconfig_lagg_status *ls;
struct lacp_opreq *lp;
const char *proto = "<unknown>";
int i;
if (ifconfig_lagg_get_lagg_status(lifh, ifa->ifa_name, &ls) < 0) {
if (ifconfig_err_errno(lifh) == EINVAL) {
return;
}
err(1, "Failed to get interface lagg status");
}
/* First print the proto */
for (i = 0; i < nitems(lpr); i++) {
if (ls->ra->ra_proto == lpr[i].lpr_proto) {
proto = lpr[i].lpr_name;
break;
}
}
printf("\tlaggproto %s", proto);
/* Now print the lagg hash */
if (ls->rf->rf_flags & LAGG_F_HASHMASK) {
const char *sep = "";
printf(" lagghash ");
if (ls->rf->rf_flags & LAGG_F_HASHL2) {
printf("%sl2", sep);
sep = ",";
}
if (ls->rf->rf_flags & LAGG_F_HASHL3) {
printf("%sl3", sep);
sep = ",";
}
if (ls->rf->rf_flags & LAGG_F_HASHL4) {
printf("%sl4", sep);
sep = ",";
}
}
putchar('\n');
printf("\tlagg options:\n");
printf("\t\tflags=%x", ls->ro->ro_opts);
putchar('\n');
printf("\t\tflowid_shift: %d\n", ls->ro->ro_flowid_shift);
if (ls->ra->ra_proto == LAGG_PROTO_ROUNDROBIN) {
printf("\t\trr_limit: %d\n", ls->ro->ro_bkt);
}
printf("\tlagg statistics:\n");
printf("\t\tactive ports: %d\n", ls->ro->ro_active);
printf("\t\tflapping: %u\n", ls->ro->ro_flapping);
for (i = 0; i < ls->ra->ra_ports; i++) {
lp = (struct lacp_opreq *)&ls->ra->ra_port[i].rp_lacpreq;
printf("\tlaggport: %s ", ls->ra->ra_port[i].rp_portname);
printf("flags=%x", ls->ra->ra_port[i].rp_flags);
if (ls->ra->ra_proto == LAGG_PROTO_LACP) {
printf(" state=%x", lp->actor_state);
}
putchar('\n');
}
printf("\n");
ifconfig_lagg_free_lagg_status(ls);
}
static void
print_laggport(ifconfig_handle_t *lifh, struct ifaddrs *ifa)
{
struct lagg_reqport rp;
if (ifconfig_lagg_get_laggport_status(lifh, ifa->ifa_name, &rp) < 0) {
if ((ifconfig_err_errno(lifh) == EINVAL) ||
(ifconfig_err_errno(lifh) == ENOENT)) {
return;
} else {
err(1, "Failed to get lagg port status");
}
}
printf("\tlaggdev: %s\n", rp.rp_ifname);
}
static void
print_groups(ifconfig_handle_t *lifh, struct ifaddrs *ifa)
{
struct ifgroupreq ifgr;
struct ifg_req *ifg;
int len;
int cnt = 0;
if (ifconfig_get_groups(lifh, ifa->ifa_name, &ifgr) != 0) {
err(1, "Failed to get groups");
}
ifg = ifgr.ifgr_groups;
len = ifgr.ifgr_len;
for (; ifg && len >= sizeof(struct ifg_req); ifg++) {
len -= sizeof(struct ifg_req);
if (strcmp(ifg->ifgrq_group, "all")) {
if (cnt == 0) {
printf("\tgroups: ");
}
cnt++;
printf("%s ", ifg->ifgrq_group);
}
}
if (cnt) {
printf("\n");
}
free(ifgr.ifgr_groups);
}
static void
print_media(ifconfig_handle_t *lifh, struct ifaddrs *ifa)
{
int i;
/* Outline:
* 1) Determine whether the iface supports SIOGIFMEDIA or SIOGIFXMEDIA
* 2) Get the full media list
* 3) Print the current media word
* 4) Print the active media word, if different
* 5) Print the status
* 6) Print the supported media list
*
* How to print the media word:
* 1) Get the top-level interface type and description
* 2) Print the subtype
* 3) For current word only, print the top type, if it exists
* 4) Print options list
* 5) Print the instance, if there is one
*
* How to get the top-level interface type
* 1) Shift ifmw right by 0x20 and index into IFM_TYPE_DESCRIPTIONS
*
* How to get the top-level interface subtype
* 1) Shift ifmw right by 0x20, index into ifmedia_types_to_subtypes
* 2) Iterate through the resulting table's subtypes table, ignoring
* aliases. Iterate through the resulting ifmedia_description
* tables, finding an entry with the right media subtype
*/
struct ifmediareq *ifmr;
char opts[80];
if (ifconfig_media_get_mediareq(lifh, ifa->ifa_name, &ifmr) != 0) {
if (ifconfig_err_errtype(lifh) != OK) {
err(1, "Failed to get media info");
} else {
return; /* Interface doesn't support media info */
}
}
printf("\tmedia: %s %s", ifconfig_media_get_type(ifmr->ifm_current),
ifconfig_media_get_subtype(ifmr->ifm_current));
if (ifmr->ifm_active != ifmr->ifm_current) {
printf(" (%s", ifconfig_media_get_subtype(ifmr->ifm_active));
ifconfig_media_get_options_string(ifmr->ifm_active, opts,
sizeof(opts));
if (opts[0] != '\0') {
printf(" <%s>)\n", opts);
} else {
printf(")\n");
}
} else {
printf("\n");
}
if (ifmr->ifm_status & IFM_AVALID) {
printf("\tstatus: %s\n",
ifconfig_media_get_status(ifmr));
}
printf("\tsupported media:\n");
for (i = 0; i < ifmr->ifm_count; i++) {
printf("\t\tmedia %s",
ifconfig_media_get_subtype(ifmr->ifm_ulist[i]));
ifconfig_media_get_options_string(ifmr->ifm_ulist[i], opts,
sizeof(opts));
if (opts[0] != '\0') {
printf(" mediaopt %s\n", opts);
} else {
printf("\n");
}
}
free(ifmr);
}
static void
print_iface(ifconfig_handle_t *lifh, struct ifaddrs *ifa, void *udata __unused)
{
int metric, mtu;
char *description = NULL;
struct ifconfig_capabilities caps;
struct ifstat ifs;
printf("%s: flags=%x ", ifa->ifa_name, ifa->ifa_flags);
if (ifconfig_get_metric(lifh, ifa->ifa_name, &metric) == 0) {
printf("metric %d ", metric);
} else {
err(1, "Failed to get interface metric");
}
if (ifconfig_get_mtu(lifh, ifa->ifa_name, &mtu) == 0) {
printf("mtu %d\n", mtu);
} else {
err(1, "Failed to get interface MTU");
}
if (ifconfig_get_description(lifh, ifa->ifa_name, &description) == 0) {
printf("\tdescription: %s\n", description);
}
if (ifconfig_get_capability(lifh, ifa->ifa_name, &caps) == 0) {
if (caps.curcap != 0) {
printf("\toptions=%x\n", caps.curcap);
}
if (caps.reqcap != 0) {
printf("\tcapabilities=%x\n", caps.reqcap);
}
} else {
err(1, "Failed to get interface capabilities");
}
ifconfig_foreach_ifaddr(lifh, ifa, print_ifaddr, NULL);
/* This paragraph is equivalent to ifconfig's af_other_status funcs */
print_nd6(lifh, ifa);
print_media(lifh, ifa);
print_groups(lifh, ifa);
print_fib(lifh, ifa);
print_carp(lifh, ifa);
print_lagg(lifh, ifa);
print_laggport(lifh, ifa);
if (ifconfig_get_ifstatus(lifh, ifa->ifa_name, &ifs) == 0) {
printf("%s", ifs.ascii);
}
free(description);
}
int
main(int argc, char *argv[])
{
ifconfig_handle_t *lifh;
if (argc != 1) {
errx(1, "Usage: example_status");
}
lifh = ifconfig_open();
if (lifh == NULL) {
errx(1, "Failed to open libifconfig handle.");
}
if (ifconfig_foreach_iface(lifh, print_iface, NULL) != 0) {
err(1, "Failed to get interfaces");
}
ifconfig_close(lifh);
lifh = NULL;
return (-1);
}

2
usr.sbin/wlandebug/wlandebug.c
View File

@ -38,6 +38,8 @@
#include <sys/types.h> #include <sys/types.h>
#include <sys/sysctl.h> #include <sys/sysctl.h>
#include <net/if.h>
#include <stdio.h> #include <stdio.h>
#include <stdlib.h> #include <stdlib.h>
#include <ctype.h> #include <ctype.h>