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/*
* Common ioctl functions for Solaris.
* Copyright (C) 1997, 98 Kunihiro Ishiguro
*
* This file is part of GNU Zebra.
*
* GNU Zebra is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License as published by the
* Free Software Foundation; either version 2, or (at your option) any
* later version.
*
* GNU Zebra is distributed in the hope that it will be useful, but
* WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* General Public License for more details.
*
* You should have received a copy of the GNU General Public License along
* with this program; see the file COPYING; if not, write to the Free Software
* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
*/
#include <zebra.h>
#ifdef SUNOS_5
#include "linklist.h"
#include "if.h"
#include "prefix.h"
#include "ioctl.h"
#include "log.h"
#include "privs.h"
#include "vty.h"
#include "vrf.h"
#include "lib_errors.h"
#include "zebra/rib.h"
#include "zebra/rt.h"
#include "zebra/interface.h"
#include "zebra/ioctl_solaris.h"
#include "zebra/zebra_errors.h"
extern struct zebra_privs_t zserv_privs;
/* clear and set interface name string */
void lifreq_set_name(struct lifreq *lifreq, const char *ifname)
{
strncpy(lifreq->lifr_name, ifname, IFNAMSIZ);
}
int vrf_if_ioctl(unsigned long request, caddr_t buffer, vrf_id_t vrf_id)
{
return if_ioctl(request, buffer);
}
/* call ioctl system call */
int if_ioctl(unsigned long request, caddr_t buffer)
{
int sock;
int ret;
int err;
frr_elevate_privs(&zserv_privs) {
sock = socket(AF_INET, SOCK_DGRAM, 0);
if (sock < 0) {
zlog_err("Cannot create UDP socket: %s",
safe_strerror(errno));
exit(1);
}
if ((ret = ioctl(sock, request, buffer)) < 0)
err = errno;
}
close(sock);
if (ret < 0) {
errno = err;
return ret;
}
return 0;
}
int if_ioctl_ipv6(unsigned long request, caddr_t buffer)
{
int sock;
int ret;
int err;
frr_elevate_privs(&zserv_privs) {
sock = socket(AF_INET6, SOCK_DGRAM, 0);
if (sock < 0) {
zlog_err("Cannot create IPv6 datagram socket: %s",
safe_strerror(errno));
exit(1);
}
if ((ret = ioctl(sock, request, buffer)) < 0)
err = errno;
}
close(sock);
if (ret < 0) {
errno = err;
return ret;
}
return 0;
}
/*
* get interface metric
* -- if value is not avaliable set -1
*/
void if_get_metric(struct interface *ifp)
{
struct lifreq lifreq;
int ret;
lifreq_set_name(&lifreq, ifp->name);
if (ifp->flags & IFF_IPV4)
ret = AF_IOCTL(AF_INET, SIOCGLIFMETRIC, (caddr_t)&lifreq);
#ifdef SOLARIS_IPV6
else if (ifp->flags & IFF_IPV6)
ret = AF_IOCTL(AF_INET6, SIOCGLIFMETRIC, (caddr_t)&lifreq);
#endif /* SOLARIS_IPV6 */
else
ret = -1;
if (ret < 0)
return;
ifp->metric = lifreq.lifr_metric;
if (ifp->metric == 0)
ifp->metric = 1;
}
/* get interface MTU */
void if_get_mtu(struct interface *ifp)
{
struct lifreq lifreq;
int ret;
uint8_t changed = 0;
if (ifp->flags & IFF_IPV4) {
lifreq_set_name(&lifreq, ifp->name);
ret = AF_IOCTL(AF_INET, SIOCGLIFMTU, (caddr_t)&lifreq);
if (ret < 0) {
zlog_info(
"Can't lookup mtu on %s by ioctl(SIOCGLIFMTU)",
ifp->name);
ifp->mtu = -1;
} else {
ifp->mtu = lifreq.lifr_metric;
changed = 1;
}
}
if (ifp->flags & IFF_IPV6) {
memset(&lifreq, 0, sizeof(lifreq));
lifreq_set_name(&lifreq, ifp->name);
ret = AF_IOCTL(AF_INET6, SIOCGLIFMTU, (caddr_t)&lifreq);
if (ret < 0) {
zlog_info(
"Can't lookup mtu6 on %s by ioctl(SIOCGIFMTU)",
ifp->name);
ifp->mtu6 = -1;
} else {
ifp->mtu6 = lifreq.lifr_metric;
changed = 1;
}
}
if (changed)
zebra_interface_up_update(ifp);
}
/* Set up interface's address, netmask (and broadcast? ).
Solaris uses ifname:number semantics to set IP address aliases. */
int if_set_prefix(struct interface *ifp, struct connected *ifc)
{
int ret;
struct ifreq ifreq;
struct sockaddr_in addr;
struct sockaddr_in broad;
struct sockaddr_in mask;
struct prefix_ipv4 ifaddr;
struct prefix_ipv4 *p;
p = (struct prefix_ipv4 *)ifc->address;
ifaddr = *p;
strncpy(ifreq.ifr_name, ifp->name, IFNAMSIZ);
addr.sin_addr = p->prefix;
addr.sin_family = p->family;
memcpy(&ifreq.ifr_addr, &addr, sizeof(struct sockaddr_in));
ret = if_ioctl(SIOCSIFADDR, (caddr_t)&ifreq);
if (ret < 0)
return ret;
/* We need mask for make broadcast addr. */
masklen2ip(p->prefixlen, &mask.sin_addr);
if (if_is_broadcast(ifp)) {
apply_mask_ipv4(&ifaddr);
addr.sin_addr = ifaddr.prefix;
broad.sin_addr.s_addr =
(addr.sin_addr.s_addr | ~mask.sin_addr.s_addr);
broad.sin_family = p->family;
memcpy(&ifreq.ifr_broadaddr, &broad,
sizeof(struct sockaddr_in));
ret = if_ioctl(SIOCSIFBRDADDR, (caddr_t)&ifreq);
if (ret < 0)
return ret;
}
mask.sin_family = p->family;
#ifdef SUNOS_5
memcpy(&mask, &ifreq.ifr_addr, sizeof(mask));
#else
memcpy(&ifreq.ifr_netmask, &mask, sizeof(struct sockaddr_in));
#endif /* SUNOS_5 */
ret = if_ioctl(SIOCSIFNETMASK, (caddr_t)&ifreq);
return ((ret < 0) ? ret : 0);
}
/* Set up interface's address, netmask (and broadcast).
Solaris uses ifname:number semantics to set IP address aliases. */
int if_unset_prefix(struct interface *ifp, struct connected *ifc)
{
int ret;
struct ifreq ifreq;
struct sockaddr_in addr;
struct prefix_ipv4 *p;
p = (struct prefix_ipv4 *)ifc->address;
strncpy(ifreq.ifr_name, ifp->name, IFNAMSIZ);
memset(&addr, 0, sizeof(struct sockaddr_in));
addr.sin_family = p->family;
memcpy(&ifreq.ifr_addr, &addr, sizeof(struct sockaddr_in));
ret = if_ioctl(SIOCSIFADDR, (caddr_t)&ifreq);
if (ret < 0)
return ret;
return 0;
}
/* Get just the flags for the given name.
* Used by the normal 'if_get_flags' function, as well
* as the bootup interface-list code, which has to peek at per-address
* flags in order to figure out which ones should be ignored..
*/
int if_get_flags_direct(const char *ifname, uint64_t *flags, unsigned int af)
{
struct lifreq lifreq;
int ret;
lifreq_set_name(&lifreq, ifname);
ret = AF_IOCTL(af, SIOCGLIFFLAGS, (caddr_t)&lifreq);
if (ret)
zlog_debug("%s: ifname %s, error %s (%d)", __func__, ifname,
safe_strerror(errno), errno);
*flags = lifreq.lifr_flags;
return ret;
}
/* get interface flags */
void if_get_flags(struct interface *ifp)
{
int ret4 = 0, ret6 = 0;
uint64_t newflags = 0;
uint64_t tmpflags;
if (ifp->flags & IFF_IPV4) {
ret4 = if_get_flags_direct(ifp->name, &tmpflags, AF_INET);
if (!ret4)
newflags |= tmpflags;
else if (errno == ENXIO) {
/* it's gone */
UNSET_FLAG(ifp->flags, IFF_UP);
if_flags_update(ifp, ifp->flags);
}
}
if (ifp->flags & IFF_IPV6) {
ret6 = if_get_flags_direct(ifp->name, &tmpflags, AF_INET6);
if (!ret6)
newflags |= tmpflags;
else if (errno == ENXIO) {
/* it's gone */
UNSET_FLAG(ifp->flags, IFF_UP);
if_flags_update(ifp, ifp->flags);
}
}
/* only update flags if one of above succeeded */
if (!(ret4 && ret6))
if_flags_update(ifp, newflags);
}
/* Set interface flags */
int if_set_flags(struct interface *ifp, uint64_t flags)
{
int ret;
struct lifreq lifreq;
lifreq_set_name(&lifreq, ifp->name);
lifreq.lifr_flags = ifp->flags;
lifreq.lifr_flags |= flags;
if (ifp->flags & IFF_IPV4)
ret = AF_IOCTL(AF_INET, SIOCSLIFFLAGS, (caddr_t)&lifreq);
else if (ifp->flags & IFF_IPV6)
ret = AF_IOCTL(AF_INET6, SIOCSLIFFLAGS, (caddr_t)&lifreq);
else
ret = -1;
if (ret < 0)
zlog_info("can't set interface flags on %s: %s", ifp->name,
safe_strerror(errno));
else
ret = 0;
return ret;
}
/* Unset interface's flag. */
int if_unset_flags(struct interface *ifp, uint64_t flags)
{
int ret;
struct lifreq lifreq;
lifreq_set_name(&lifreq, ifp->name);
lifreq.lifr_flags = ifp->flags;
lifreq.lifr_flags &= ~flags;
if (ifp->flags & IFF_IPV4)
ret = AF_IOCTL(AF_INET, SIOCSLIFFLAGS, (caddr_t)&lifreq);
else if (ifp->flags & IFF_IPV6)
ret = AF_IOCTL(AF_INET6, SIOCSLIFFLAGS, (caddr_t)&lifreq);
else
ret = -1;
if (ret < 0)
zlog_info("can't unset interface flags");
else
ret = 0;
return ret;
}
/* Interface's address add/delete functions. */
int if_prefix_add_ipv6(struct interface *ifp, struct connected *ifc)
{
char addrbuf[PREFIX_STRLEN];
flog_warn(LIB_ERR_DEVELOPMENT, "Can't set %s on interface %s",
prefix2str(ifc->address, addrbuf, sizeof(addrbuf)),
ifp->name);
return 0;
}
int if_prefix_delete_ipv6(struct interface *ifp, struct connected *ifc)
{
char addrbuf[PREFIX_STRLEN];
flog_warn(LIB_ERR_DEVELOPMENT, "Can't delete %s on interface %s",
prefix2str(ifc->address, addrbuf, sizeof(addrbuf)),
ifp->name);
return 0;
}
#endif /* SUNOS_5 */
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