void
got_one(void)
{
struct sockaddr_in from;
struct ether_addr hfrom;
struct in_addr ifrom;
ssize_t result;
if ((result = receive_packet(&from, &hfrom)) == -1) {
warning("receive_packet failed on %s: %s", ifi->name,
strerror(errno));
ifi->errors++;
if ((!interface_status(ifi->name)) ||
(ifi->noifmedia && ifi->errors > 20)) {
/* our interface has gone away. */
error("Interface %s no longer appears valid.",
ifi->name);
}
return;
}
if (result == 0)
return;
ifrom.s_addr = from.sin_addr.s_addr;
do_packet(from.sin_port, ifrom, &hfrom);
}
void
got_one(struct protocol *l)
{
struct sockaddr_in from;
struct hardware hfrom;
struct iaddr ifrom;
ssize_t result;
union {
/*
* Packet input buffer. Must be as large as largest
* possible MTU.
*/
unsigned char packbuf[4095];
struct dhcp_packet packet;
} u;
struct interface_info *ip = l->local;
if ((result = receive_packet(ip, u.packbuf, sizeof(u), &from,
&hfrom)) == -1) {
warning("receive_packet failed on %s: %s", ip->name,
strerror(errno));
ip->errors++;
if ((!interface_status(ip)) ||
(ip->noifmedia && ip->errors > 20)) {
/* our interface has gone away. */
warning("Interface %s no longer appears valid.",
ip->name);
ip->dead = 1;
interfaces_invalidated = 1;
close(l->fd);
remove_protocol(l);
free(ip);
}
return;
}
if (result == 0)
return;
if (bootp_packet_handler) {
ifrom.len = 4;
memcpy(ifrom.iabuf, &from.sin_addr, ifrom.len);
(*bootp_packet_handler)(ip, &u.packet, result,
from.sin_port, ifrom, &hfrom);
}
}
static struct timeval *
rtsol_check_timer(void)
{
static struct timeval returnval;
struct timeval now, rtsol_timer;
struct ifinfo *ifinfo;
int flags;
gettimeofday(&now, NULL);
rtsol_timer = tm_max;
for (ifinfo = iflist; ifinfo; ifinfo = ifinfo->next) {
if (TIMEVAL_LEQ(ifinfo->expire, now)) {
if (dflag > 1)
warnmsg(LOG_DEBUG, __func__,
"timer expiration on %s, "
"state = %d", ifinfo->ifname,
ifinfo->state);
switch (ifinfo->state) {
case IFS_DOWN:
case IFS_TENTATIVE:
/* interface_up returns 0 on success */
flags = interface_up(ifinfo->ifname);
if (flags == 0)
ifinfo->state = IFS_DELAY;
else if (flags == IFS_TENTATIVE)
ifinfo->state = IFS_TENTATIVE;
else
ifinfo->state = IFS_DOWN;
break;
case IFS_IDLE:
{
int oldstatus = ifinfo->active;
int probe = 0;
ifinfo->active =
interface_status(ifinfo);
if (oldstatus != ifinfo->active) {
warnmsg(LOG_DEBUG, __func__,
"%s status is changed"
" from %d to %d",
ifinfo->ifname,
oldstatus, ifinfo->active);
probe = 1;
ifinfo->state = IFS_DELAY;
}
else if (ifinfo->probeinterval &&
(ifinfo->probetimer -=
ifinfo->timer.tv_sec) <= 0) {
/* probe timer expired */
ifinfo->probetimer =
ifinfo->probeinterval;
probe = 1;
ifinfo->state = IFS_PROBE;
}
if (probe && mobile_node)
defrouter_probe(ifinfo->sdl->sdl_index);
break;
}
case IFS_DELAY:
ifinfo->state = IFS_PROBE;
sendpacket(ifinfo);
break;
case IFS_PROBE:
if (ifinfo->probes < MAX_RTR_SOLICITATIONS)
sendpacket(ifinfo);
else {
warnmsg(LOG_INFO, __func__,
"No answer "
"after sending %d RSs",
ifinfo->probes);
ifinfo->probes = 0;
ifinfo->state = IFS_IDLE;
}
break;
}
rtsol_timer_update(ifinfo);
}
if (TIMEVAL_LT(ifinfo->expire, rtsol_timer))
rtsol_timer = ifinfo->expire;
}
if (TIMEVAL_EQ(rtsol_timer, tm_max)) {
warnmsg(LOG_DEBUG, __func__, "there is no timer");
return(NULL);
}
else if (TIMEVAL_LT(rtsol_timer, now))
/* this may occur when the interval is too small */
returnval.tv_sec = returnval.tv_usec = 0;
else
TIMEVAL_SUB(&rtsol_timer, &now, &returnval);
if (dflag > 1)
warnmsg(LOG_DEBUG, __func__, "New timer is %ld:%08ld",
(long)returnval.tv_sec, (long)returnval.tv_usec);
return(&returnval);
}
static int
ifconfig(char *ifname)
{
struct ifinfo *ifinfo;
struct sockaddr_dl *sdl;
int flags;
if ((sdl = if_nametosdl(ifname)) == NULL) {
warnmsg(LOG_ERR, __func__,
"failed to get link layer information for %s", ifname);
return(-1);
}
if (find_ifinfo(sdl->sdl_index)) {
warnmsg(LOG_ERR, __func__,
"interface %s was already configured", ifname);
free(sdl);
return(-1);
}
if ((ifinfo = malloc(sizeof(*ifinfo))) == NULL) {
warnmsg(LOG_ERR, __func__, "memory allocation failed");
free(sdl);
return(-1);
}
memset(ifinfo, 0, sizeof(*ifinfo));
ifinfo->sdl = sdl;
strncpy(ifinfo->ifname, ifname, sizeof(ifinfo->ifname));
/* construct a router solicitation message */
if (make_packet(ifinfo))
goto bad;
/*
* check if the interface is available.
* also check if SIOCGIFMEDIA ioctl is OK on the interface.
*/
ifinfo->mediareqok = 1;
ifinfo->active = interface_status(ifinfo);
if (!ifinfo->mediareqok) {
/*
* probe routers periodically even if the link status
* does not change.
*/
ifinfo->probeinterval = PROBE_INTERVAL;
}
/* activate interface: interface_up returns 0 on success */
flags = interface_up(ifinfo->ifname);
if (flags == 0)
ifinfo->state = IFS_DELAY;
else if (flags == IFS_TENTATIVE)
ifinfo->state = IFS_TENTATIVE;
else
ifinfo->state = IFS_DOWN;
rtsol_timer_update(ifinfo);
/* link into chain */
if (iflist)
ifinfo->next = iflist;
iflist = ifinfo;
return(0);
bad:
free(ifinfo->sdl);
free(ifinfo);
return(-1);
}
gboolean
NetAgent::invoke(qmf::AgentSession session, qmf::AgentEvent event,
gpointer user_data)
{
if (event.getType() != qmf::AGENT_METHOD) {
return TRUE;
}
const std::string& methodName(event.getMethodName());
qpid::types::Variant::Map& args = event.getArguments();
if (methodName == "list") {
GList *plist = NULL;
GList *interface_list = NULL;
_qtype::Variant::List s_list;
interface_list = mh_network_get_interfaces();
for (plist = g_list_first(interface_list); plist;
plist = g_list_next(plist)) {
struct mh_network_interface *iface =
static_cast<struct mh_network_interface *>(plist->data);
s_list.push_back(mh_network_interface_get_name(iface));
}
g_list_free_full(interface_list, mh_network_interface_destroy);
event.addReturnArgument("iface_map", s_list);
} else if (methodName == "start") {
int rc = interface_status(
args["iface"].asString().c_str());
if (rc == 1) {
mh_network_start(args["iface"].asString().c_str());
rc = interface_status(
args["iface"].asString().c_str());
}
event.addReturnArgument("status", rc);
} else if (methodName == "stop") {
int rc = interface_status(
args["iface"].asString().c_str());
if (rc == 0) {
mh_network_stop(args["iface"].asString().c_str());
rc = interface_status(
args["iface"].asString().c_str());
}
event.addReturnArgument("status", rc);
} else if (methodName == "status") {
event.addReturnArgument("status", interface_status(
args["iface"].asString().c_str()));
} else if (methodName == "get_ip_address") {
char buf[64];
event.addReturnArgument("ip", mh_network_get_ip_address(
args["iface"].asString().c_str(),
buf, sizeof(buf)));
} else if (methodName == "get_mac_address") {
char buf[32];
event.addReturnArgument("mac", mh_network_get_mac_address(
args["iface"].asString().c_str(),
buf, sizeof(buf)));
} else {
session.raiseException(event, mh_result_to_str(MH_RES_NOT_IMPLEMENTED));
goto bail;
}
session.methodSuccess(event);
bail:
return TRUE;
}
