struct interface *if_get_by_name_len(const char *name, size_t namelen)
{
struct interface *ifp;
return ((ifp = if_lookup_by_name_len(name, namelen)) != NULL) ? ifp :
if_create(name, namelen);
}
/* Get interface by name if given name interface doesn't exist create
one. */
struct interface *if_get_by_name(const char *name)
{
struct interface *ifp;
return ((ifp = if_lookup_by_name(name)) != NULL) ? ifp :
if_create(name, strlen(name));
}
struct interface_FOO *
zebra_interface_add_read (struct stream *s)
{
struct interface_FOO *ifp;
char ifname_tmp[INTERFACE_NAMSIZ];
/* Read interface name. */
stream_get (ifname_tmp, s, INTERFACE_NAMSIZ);
/* Lookup this by interface name. */
ifp = if_lookup_by_name (ifname_tmp);
/* If such interface does not exist, make new one. */
if (! ifp)
ifp = if_create (ifname_tmp, INTERFACE_NAMSIZ);
/* Read interface's index. */
ifp->ifindex = stream_getl (s);
/* Read interface's value. */
ifp->status = stream_getc (s);
ifp->flags = stream_getl (s);
ifp->metric = stream_getl (s);
ifp->mtu = stream_getl (s);
ifp->mtu6 = stream_getl (s);
ifp->bandwidth = stream_getl (s);
#ifdef HAVE_SOCKADDR_DL
stream_get (&ifp->sdl, s, sizeof (ifp->sdl));
#else
ifp->hw_addr_len = stream_getl (s);
if (ifp->hw_addr_len)
stream_get (ifp->hw_addr, s, ifp->hw_addr_len);
#endif /* HAVE_SOCKADDR_DL */
return ifp;
}
/* Interface adding function called from interface_list. */
int
ifm_read (struct if_msghdr *ifm)
{
struct interface *ifp;
struct sockaddr_dl *sdl = NULL;
sdl = (struct sockaddr_dl *)(ifm + 1);
/* Use sdl index. */
ifp = if_lookup_by_index (ifm->ifm_index);
if (ifp == NULL)
{
/* Check interface's address.*/
if (! (ifm->ifm_addrs & RTA_IFP))
{
zlog_warn ("There must be RTA_IFP address for ifindex %d\n",
ifm->ifm_index);
return -1;
}
ifp = if_create ();
strncpy (ifp->name, sdl->sdl_data, sdl->sdl_nlen);
ifp->ifindex = ifm->ifm_index;
ifp->flags = ifm->ifm_flags;
#if defined(__bsdi__)
if_kvm_get_mtu (ifp);
#else
if_get_mtu (ifp);
#endif /* __bsdi__ */
if_get_metric (ifp);
/* Fetch hardware address. */
if (sdl->sdl_family != AF_LINK)
{
zlog_warn ("sockaddr_dl->sdl_family is not AF_LINK");
return -1;
}
memcpy (&ifp->sdl, sdl, sizeof (struct sockaddr_dl));
if_add_update (ifp);
}
else
{
/* There is a case of promisc, allmulti flag modification. */
if (if_is_up (ifp))
{
ifp->flags = ifm->ifm_flags;
if (! if_is_up (ifp))
if_down (ifp);
}
else
{
ifp->flags = ifm->ifm_flags;
if (if_is_up (ifp))
if_up (ifp);
}
}
#ifdef HAVE_NET_RT_IFLIST
ifp->stats = ifm->ifm_data;
#endif /* HAVE_NET_RT_IFLIST */
if (IS_ZEBRA_DEBUG_KERNEL)
zlog_info ("interface %s index %d", ifp->name, ifp->ifindex);
return 0;
}
/*
* Handle struct if_msghdr obtained from reading routing socket or
* sysctl (from interface_list). There may or may not be sockaddrs
* present after the header.
*/
int
ifm_read (struct if_msghdr *ifm)
{
struct interface *ifp = NULL;
char ifname[IFNAMSIZ];
short ifnlen = 0;
caddr_t *cp;
/* terminate ifname at head (for strnlen) and tail (for safety) */
ifname[IFNAMSIZ - 1] = '\0';
/* paranoia: sanity check structure */
if (ifm->ifm_msglen < sizeof(struct if_msghdr))
{
zlog_err ("ifm_read: ifm->ifm_msglen %d too short\n",
ifm->ifm_msglen);
return -1;
}
/*
* Check for a sockaddr_dl following the message. First, point to
* where a socakddr might be if one follows the message.
*/
cp = (void *)(ifm + 1);
#ifdef SUNOS_5
/*
* XXX This behavior should be narrowed to only the kernel versions
* for which the structures returned do not match the headers.
*
* if_msghdr_t on 64 bit kernels in Solaris 9 and earlier versions
* is 12 bytes larger than the 32 bit version.
*/
if (((struct sockaddr *) cp)->sa_family == AF_UNSPEC)
cp = cp + 12;
#endif
RTA_ADDR_GET (NULL, RTA_DST, ifm->ifm_addrs, cp);
RTA_ADDR_GET (NULL, RTA_GATEWAY, ifm->ifm_addrs, cp);
RTA_ATTR_GET (NULL, RTA_NETMASK, ifm->ifm_addrs, cp);
RTA_ADDR_GET (NULL, RTA_GENMASK, ifm->ifm_addrs, cp);
RTA_NAME_GET (ifname, RTA_IFP, ifm->ifm_addrs, cp, ifnlen);
RTA_ADDR_GET (NULL, RTA_IFA, ifm->ifm_addrs, cp);
RTA_ADDR_GET (NULL, RTA_AUTHOR, ifm->ifm_addrs, cp);
RTA_ADDR_GET (NULL, RTA_BRD, ifm->ifm_addrs, cp);
if (IS_ZEBRA_DEBUG_KERNEL)
zlog_debug ("%s: sdl ifname %s", __func__, (ifnlen ? ifname : "(nil)"));
/*
* Look up on ifindex first, because ifindices are the primary handle for
* interfaces across the user/kernel boundary, for most systems. (Some
* messages, such as up/down status changes on NetBSD, do not include a
* sockaddr_dl).
*/
if ( (ifp = if_lookup_by_index (ifm->ifm_index)) != NULL )
{
/* we have an ifp, verify that the name matches as some systems,
* eg Solaris, have a 1:many association of ifindex:ifname
* if they dont match, we dont have the correct ifp and should
* set it back to NULL to let next check do lookup by name
*/
if (ifnlen && (strncmp (ifp->name, ifname, IFNAMSIZ) != 0) )
{
if (IS_ZEBRA_DEBUG_KERNEL)
zlog_debug ("%s: ifp name %s doesnt match sdl name %s",
__func__, ifp->name, ifname);
ifp = NULL;
}
}
/*
* If we dont have an ifp, try looking up by name. Particularly as some
* systems (Solaris) have a 1:many mapping of ifindex:ifname - the ifname
* is therefore our unique handle to that interface.
*
* Interfaces specified in the configuration file for which the ifindex
* has not been determined will have ifindex == IFINDEX_INTERNAL, and such
* interfaces are found by this search, and then their ifindex values can
* be filled in.
*/
if ( (ifp == NULL) && ifnlen)
ifp = if_lookup_by_name (ifname);
/*
* If ifp still does not exist or has an invalid index (IFINDEX_INTERNAL),
* create or fill in an interface.
*/
if ((ifp == NULL) || (ifp->ifindex == IFINDEX_INTERNAL))
{
/*
* To create or fill in an interface, a sockaddr_dl (via
* RTA_IFP) is required.
*/
if (!ifnlen)
{
zlog_warn ("Interface index %d (new) missing ifname\n",
ifm->ifm_index);
return -1;
}
#ifndef RTM_IFANNOUNCE
/* Down->Down interface should be ignored here.
* See further comment below.
*/
if (!CHECK_FLAG (ifm->ifm_flags, IFF_UP))
return 0;
#endif /* !RTM_IFANNOUNCE */
if (ifp == NULL)
{
/* Interface that zebra was not previously aware of, so create. */
ifp = if_create (ifname, ifnlen);
if (IS_ZEBRA_DEBUG_KERNEL)
zlog_debug ("%s: creating ifp for ifindex %d",
__func__, ifm->ifm_index);
}
if (IS_ZEBRA_DEBUG_KERNEL)
zlog_debug ("%s: updated/created ifp, ifname %s, ifindex %d",
__func__, ifp->name, ifp->ifindex);
/*
* Fill in newly created interface structure, or larval
* structure with ifindex IFINDEX_INTERNAL.
*/
ifp->ifindex = ifm->ifm_index;
#ifdef HAVE_BSD_LINK_DETECT /* translate BSD kernel msg for link-state */
bsd_linkdetect_translate(ifm);
#endif /* HAVE_BSD_LINK_DETECT */
if_flags_update (ifp, ifm->ifm_flags);
#if defined(__bsdi__)
if_kvm_get_mtu (ifp);
#else
if_get_mtu (ifp);
#endif /* __bsdi__ */
if_get_metric (ifp);
if_add_update (ifp);
}
else
/*
* Interface structure exists. Adjust stored flags from
* notification. If interface has up->down or down->up
* transition, call state change routines (to adjust routes,
* notify routing daemons, etc.). (Other flag changes are stored
* but apparently do not trigger action.)
*/
{
if (ifp->ifindex != ifm->ifm_index)
{
zlog_warn ("%s: index mismatch, ifname %s, ifp index %d, "
"ifm index %d",
__func__, ifp->name, ifp->ifindex, ifm->ifm_index);
return -1;
}
#ifdef HAVE_BSD_LINK_DETECT /* translate BSD kernel msg for link-state */
bsd_linkdetect_translate(ifm);
#endif /* HAVE_BSD_LINK_DETECT */
/* update flags and handle operative->inoperative transition, if any */
if_flags_update (ifp, ifm->ifm_flags);
#ifndef RTM_IFANNOUNCE
if (!if_is_up (ifp))
{
/* No RTM_IFANNOUNCE on this platform, so we can never
* distinguish between ~IFF_UP and delete. We must presume
* it has been deleted.
* Eg, Solaris will not notify us of unplumb.
*
* XXX: Fixme - this should be runtime detected
* So that a binary compiled on a system with IFANNOUNCE
* will still behave correctly if run on a platform without
*/
if_delete_update (ifp);
}
#endif /* RTM_IFANNOUNCE */
if (if_is_up (ifp))
{
#if defined(__bsdi__)
if_kvm_get_mtu (ifp);
#else
if_get_mtu (ifp);
#endif /* __bsdi__ */
if_get_metric (ifp);
}
}
#ifdef HAVE_NET_RT_IFLIST
ifp->stats = ifm->ifm_data;
#endif /* HAVE_NET_RT_IFLIST */
if (IS_ZEBRA_DEBUG_KERNEL)
zlog_debug ("%s: interface %s index %d",
__func__, ifp->name, ifp->ifindex);
return 0;
}
struct ospf_interface *
ospf_vl_new (struct ospf *ospf, struct ospf_vl_data *vl_data)
{
struct ospf_interface * voi;
struct interface * vi;
char ifname[INTERFACE_NAMSIZ + 1];
struct ospf_area *area;
struct in_addr area_id;
struct connected *co;
struct prefix_ipv4 *p;
if (IS_DEBUG_OSPF_EVENT)
zlog_debug ("ospf_vl_new(): Start");
if (vlink_count == OSPF_VL_MAX_COUNT)
{
if (IS_DEBUG_OSPF_EVENT)
zlog_debug ("ospf_vl_new(): Alarm: "
"cannot create more than OSPF_MAX_VL_COUNT virtual links");
return NULL;
}
if (IS_DEBUG_OSPF_EVENT)
zlog_debug ("ospf_vl_new(): creating pseudo zebra interface");
snprintf (ifname, sizeof(ifname), "VLINK%d", vlink_count);
vi = if_create (ifname, strnlen(ifname, sizeof(ifname)));
co = connected_new ();
co->ifp = vi;
listnode_add (vi->connected, co);
p = prefix_ipv4_new ();
p->family = AF_INET;
p->prefix.s_addr = 0;
p->prefixlen = 0;
co->address = (struct prefix *)p;
voi = ospf_if_new (ospf, vi, co->address);
if (voi == NULL)
{
if (IS_DEBUG_OSPF_EVENT)
zlog_debug ("ospf_vl_new(): Alarm: OSPF int structure is not created");
return NULL;
}
voi->connected = co;
voi->vl_data = vl_data;
voi->ifp->mtu = OSPF_VL_MTU;
voi->type = OSPF_IFTYPE_VIRTUALLINK;
vlink_count++;
if (IS_DEBUG_OSPF_EVENT)
zlog_debug ("ospf_vl_new(): Created name: %s", ifname);
if (IS_DEBUG_OSPF_EVENT)
zlog_debug ("ospf_vl_new(): set if->name to %s", vi->name);
area_id.s_addr = 0;
area = ospf_area_get (ospf, area_id, OSPF_AREA_ID_FORMAT_ADDRESS);
voi->area = area;
if (IS_DEBUG_OSPF_EVENT)
zlog_debug ("ospf_vl_new(): set associated area to the backbone");
ospf_nbr_add_self (voi);
ospf_area_add_if (voi->area, voi);
ospf_if_stream_set (voi);
if (IS_DEBUG_OSPF_EVENT)
zlog_debug ("ospf_vl_new(): Stop");
return voi;
}
int main(int argc, char **argv)
{
struct sigaction sigact;
struct sigevent sev;
struct itimerspec its;
int r = 1;
parse_args(argc, argv);
sigact.sa_handler = sighandler_exit;
sigemptyset(&sigact.sa_mask);
sigact.sa_flags = 0;
sigaction(SIGINT, &sigact, NULL);
sigaction(SIGTERM, &sigact, NULL);
sigaction(SIGQUIT, &sigact, NULL);
sigact.sa_handler = sighandler_wait_child;
sigaction(SIGCHLD, &sigact, NULL);
sigact.sa_handler = sighandler_stats;
sigfillset(&sigact.sa_mask);
if (stats_period == 0)
sigaction(SIGUSR1, &sigact, NULL);
if (logfile != NULL) {
set_wmlogger(argv[0], WMLOGGER_FILE, logfile);
} else if (daemonize) {
set_wmlogger(argv[0], WMLOGGER_SYSLOG, NULL);
} else {
set_wmlogger(argv[0], WMLOGGER_FILE, stderr);
}
if (daemonize) {
daemon(0, 0);
}
if (stats_period != 0) {
sigemptyset(&sigact.sa_mask);
sigaction(SIGRTMIN, &sigact, NULL);
// create the POSIX timer
sev.sigev_notify = SIGEV_SIGNAL;
sev.sigev_signo = SIGRTMIN;
sev.sigev_value.sival_ptr = (void *) &timerid;
if (timer_create(CLOCK_MONOTONIC, &sev, &timerid) == 0) {
// start the POSIX timer
its.it_value.tv_sec = stats_period;
its.it_value.tv_nsec = 0;
its.it_interval.tv_sec = its.it_value.tv_sec;
its.it_interval.tv_nsec = its.it_value.tv_nsec;
timer_settime(timerid, 0, &its, NULL);
}
}
r = libusb_init(&ctx);
if (r < 0) {
wmlog_msg(0, "failed to initialise libusb");
exit_release_resources(1);
}
if (pid_fname && !write_pidfile(pid_fname)) {
wmlog_msg(0, "failed to create pid file %s", pid_fname);
exit_release_resources(1);
}
devh = find_wimax_device();
if (devh == NULL) {
wmlog_msg(0, "Could not find/open device");
exit_release_resources(1);
}
wmlog_msg(0, "Device found");
if (detach_dvd && libusb_kernel_driver_active(devh, IF_DVD) == 1) {
r = libusb_detach_kernel_driver(devh, IF_DVD);
if (r < 0) {
wmlog_msg(0, "kernel driver detach error %d", r);
} else {
wmlog_msg(0, "detached pseudo-DVD kernel driver");
}
}
if (libusb_kernel_driver_active(devh, IF_MODEM) == 1) {
kernel_driver_active = 1;
r = libusb_detach_kernel_driver(devh, IF_MODEM);
if (r < 0) {
wmlog_msg(0, "kernel driver detach error %d", r);
} else {
wmlog_msg(0, "detached modem kernel driver");
}
}
r = libusb_claim_interface(devh, IF_MODEM);
if (r < 0) {
wmlog_msg(0, "Claim usb interface error %d", r);
exit_release_resources(1);
}
wmlog_msg(0, "Claimed interface");
alloc_fds();
libusb_set_pollfd_notifiers(ctx, cb_add_pollfd, cb_remove_pollfd, NULL);
r = init();
if (r < 0) {
wmlog_msg(0, "init error %d", r);
exit_release_resources(1);
}
if_create();
cb_add_pollfd(tap_fd, POLLIN, NULL);
r = scan_loop();
if (r < 0) {
wmlog_msg(0, "scan_loop error %d", r);
exit_release_resources(1);
}
exit_release_resources(0);
return 0;
}
int main(int argc, char **argv)
{
struct sigaction sigact;
int r = 1;
parse_args(argc, argv);
sigact.sa_handler = sighandler_exit;
sigemptyset(&sigact.sa_mask);
sigact.sa_flags = 0;
sigaction(SIGINT, &sigact, NULL);
sigaction(SIGTERM, &sigact, NULL);
sigaction(SIGQUIT, &sigact, NULL);
sigact.sa_handler = sighandler_wait_child;
sigaction(SIGCHLD, &sigact, NULL);
if (logfile != NULL) {
set_wmlogger(argv[0], WMLOGGER_FILE, logfile);
} else if (daemonize) {
set_wmlogger(argv[0], WMLOGGER_SYSLOG, NULL);
} else {
set_wmlogger(argv[0], WMLOGGER_FILE, stderr);
}
if (daemonize) {
daemon(0, 0);
}
r = libusb_init(&ctx);
if (r < 0) {
wmlog_msg(0, "failed to initialise libusb");
exit_release_resources(1);
}
devh = find_wimax_device();
if (devh == NULL) {
wmlog_msg(0, "Could not find/open device");
exit_release_resources(1);
}
wmlog_msg(0, "Device found");
if (detach_dvd && libusb_kernel_driver_active(devh, IF_DVD) == 1) {
r = libusb_detach_kernel_driver(devh, IF_DVD);
if (r < 0) {
wmlog_msg(0, "kernel driver detach error %d", r);
} else {
wmlog_msg(0, "detached pseudo-DVD kernel driver");
}
}
if (libusb_kernel_driver_active(devh, IF_MODEM) == 1) {
kernel_driver_active = 1;
r = libusb_detach_kernel_driver(devh, IF_MODEM);
if (r < 0) {
wmlog_msg(0, "kernel driver detach error %d", r);
} else {
wmlog_msg(0, "detached modem kernel driver");
}
}
r = libusb_claim_interface(devh, IF_MODEM);
if (r < 0) {
wmlog_msg(0, "Claim usb interface error %d", r);
exit_release_resources(1);
}
wmlog_msg(0, "Claimed interface");
alloc_fds();
libusb_set_pollfd_notifiers(ctx, cb_add_pollfd, cb_remove_pollfd, NULL);
r = init();
if (r < 0) {
wmlog_msg(0, "init error %d", r);
exit_release_resources(1);
}
if_create();
cb_add_pollfd(tap_fd, POLLIN, NULL);
r = scan_loop();
if (r < 0) {
wmlog_msg(0, "scan_loop error %d", r);
exit_release_resources(1);
}
exit_release_resources(0);
return 0;
}
