* Initialize callback socket
*/
int
-statd_get_socket(int port)
+statd_get_socket(void)
{
struct sockaddr_in sin;
+ struct servent *se;
+ int loopcnt = 100;
if (sockfd >= 0)
return sockfd;
- if ((sockfd = socket(AF_INET, SOCK_DGRAM, IPPROTO_UDP)) < 0) {
- note(N_CRIT, "Can't create socket: %m");
- return -1;
- }
+ while (loopcnt-- > 0) {
- FD_SET(sockfd, &SVC_FDSET);
+ if (sockfd >= 0) close(sockfd);
- memset(&sin, 0, sizeof(sin));
- sin.sin_family = AF_INET;
- sin.sin_addr.s_addr = INADDR_ANY;
- /*
- * If a local hostname is given (-n option to statd), bind to the address
- * specified. This is required to support clients that ignore the mon_name in
- * the statd protocol but use the source address from the request packet.
- */
- if (MY_NAME) {
- struct hostent *hp = gethostbyname(MY_NAME);
- if (hp)
- sin.sin_addr = *(struct in_addr *) hp->h_addr;
- }
- if (port != 0) {
- sin.sin_port = htons(port);
- if (bind(sockfd, &sin, sizeof(sin)) == 0)
- goto out_success;
- note(N_CRIT, "statd: failed to bind to outgoing port, %d\n"
- " falling back on randomly chosen port\n", port);
- }
- if (bindresvport(sockfd, &sin) < 0) {
- dprintf(N_WARNING,
- "process_hosts: can't bind to reserved port\n");
- }
-out_success:
- return sockfd;
-}
-
-#ifdef HAVE_IFADDRS_H
-/*
- * Using the NL_ADDR(lp), reset (if needed) the hostname
- * that will be put in the SM_NOTIFY to the hostname
- * that is associated with the network interface
- * that was monitored
- */
-static void
-reset_my_name(notify_list *lp)
-{
- struct ifaddrs *ifa = NULL, *ifap;
- struct in_addr netaddr, tmp;
- struct sockaddr_in *sin, *nsin;
- struct hostent *hp;
-
- netaddr.s_addr = inet_netof(NL_ADDR(lp));
- if (getifaddrs(&ifa) >= 0) {
- for (ifap = ifa; ifap != NULL; ifap = ifap->ifa_next) {
- if (!(ifap->ifa_flags & IFF_UP))
- continue;
-
- note(N_DEBUG, "ifa_name %s\n", ifap->ifa_name);
- if (ifap->ifa_addr == NULL)
- continue;
- if (ifap->ifa_addr->sa_family != AF_INET)
- continue;
-
- sin = (struct sockaddr_in *)ifap->ifa_addr;
- nsin = (struct sockaddr_in *)ifap->ifa_netmask;
- tmp.s_addr = sin->sin_addr.s_addr & nsin->sin_addr.s_addr;
- if (memcmp(&tmp.s_addr, &netaddr.s_addr, sizeof(netaddr.s_addr)))
- continue;
- hp = gethostbyaddr((char *)&sin->sin_addr,
- sizeof(sin->sin_addr), AF_INET);
- if (hp == NULL)
- continue;
- if (strcmp(NL_MY_NAME(lp), hp->h_name)) {
- free(NL_MY_NAME(lp));
- NL_MY_NAME(lp)= strdup(hp->h_name);
- note(N_DEBUG, "NL_MY_NAME %s\n", NL_MY_NAME(lp));
- }
+ if ((sockfd = socket(AF_INET, SOCK_DGRAM, IPPROTO_UDP)) < 0) {
+ note(N_CRIT, "Can't create socket: %m");
+ return -1;
}
- }
- return;
-}
-#endif /* HAVE_IFADDRS_H */
-/*
- * Try to resolve host name for notify/callback request
- *
- * When compiled with RESTRICTED_STATD defined, we expect all
- * host names to be dotted quads. See monitor.c for details. --okir
- */
-#ifdef RESTRICTED_STATD
-static int
-try_to_resolve(notify_list *lp)
-{
- char *hname;
-
- if (NL_TYPE(lp) == NOTIFY_REBOOT)
- hname = NL_MON_NAME(lp);
- else
- hname = NL_MY_NAME(lp);
- if (!inet_aton(hname, &(NL_ADDR(lp)))) {
- note(N_ERROR, "%s is not an dotted-quad address", hname);
- NL_TIMES(lp) = 0;
- return 0;
- }
- /* XXX: In order to handle multi-homed hosts, we could do
- * a reverse lookup, a forward lookup, and cycle through
- * all the addresses.
- */
- return 1;
-}
-#else
-static int
-try_to_resolve(notify_list *lp)
-{
- struct hostent *hp;
- char *hname;
-
- if (NL_TYPE(lp) == NOTIFY_REBOOT)
- hname = NL_MON_NAME(lp);
- else
- hname = NL_MY_NAME(lp);
-
- dprintf(N_DEBUG, "Trying to resolve %s.", hname);
- if (!(hp = gethostbyname(hname))) {
- herror("gethostbyname");
- NL_TIMES(lp) -= 1;
- return 0;
- }
- if (hp->h_addrtype != AF_INET) {
- note(N_ERROR, "%s is not an AF_INET address", hname);
- NL_TIMES(lp) = 0;
- return 0;
- }
+ memset(&sin, 0, sizeof(sin));
+ sin.sin_family = AF_INET;
+ sin.sin_addr.s_addr = INADDR_ANY;
- /* FIXME: should try all addresses for multi-homed hosts in
- * alternation because one interface might be down/unreachable. */
- NL_ADDR(lp) = *(struct in_addr *) hp->h_addr;
-
- dprintf(N_DEBUG, "address of %s is %s", hname, inet_ntoa(NL_ADDR(lp)));
- return 1;
+ if (bindresvport(sockfd, &sin) < 0) {
+ dprintf(N_WARNING,
+ "process_hosts: can't bind to reserved port\n");
+ break;
+ }
+ se = getservbyport(sin.sin_port, "udp");
+ if (se == NULL)
+ break;
+ /* rather not use that port, try again */
+ }
+ FD_SET(sockfd, &SVC_FDSET);
+ return sockfd;
}
-#endif
static unsigned long
xmit_call(int sockfd, struct sockaddr_in *sin,
{
struct sockaddr_in sin;
struct status new_status;
- stat_chge new_stat;
xdrproc_t func;
void *objp;
u_int32_t proc, vers, prog;
/* __u32 proc, vers, prog; */
- if (lp->addr.s_addr == INADDR_ANY && !try_to_resolve(lp))
- return NL_TIMES(lp);
if (NL_TIMES(lp) == 0) {
note(N_DEBUG, "Cannot notify %s, giving up.\n",
inet_ntoa(NL_ADDR(lp)));
sin.sin_port = lp->port;
/* LH - moved address into switch */
- switch (NL_TYPE(lp)) {
- case NOTIFY_REBOOT:
- prog = SM_PROG;
- vers = SM_VERS;
- proc = SM_NOTIFY;
-
- /* Use source address for notify replies */
- sin.sin_addr = lp->addr;
- /*
- * Unless a static hostname has been defined
- * set the NL_MY_NAME(lp) hostname to the
- * one associated with the network interface
- */
-#ifdef HAVE_IFADDRS_H
- if (!(run_mode & STATIC_HOSTNAME))
- reset_my_name(lp);
-#endif /* HAVE_IFADDRS_H */
- func = (xdrproc_t) xdr_stat_chge;
- new_stat.state = MY_STATE;
- new_stat.mon_name = NL_MY_NAME(lp);
+ prog = NL_MY_PROG(lp);
+ vers = NL_MY_VERS(lp);
+ proc = NL_MY_PROC(lp);
- objp = &new_stat;
- break;
- case NOTIFY_CALLBACK:
- prog = NL_MY_PROG(lp);
- vers = NL_MY_VERS(lp);
- proc = NL_MY_PROC(lp);
-
- /* __FORCE__ loopback for callbacks to lockd ... */
- /* Just in case we somehow ignored it thus far */
- sin.sin_addr.s_addr = htonl(INADDR_LOOPBACK);
-
- func = (xdrproc_t) xdr_status;
- objp = &new_status;
- new_status.mon_name = NL_MON_NAME(lp);
- new_status.state = NL_STATE(lp);
- memcpy(new_status.priv, NL_PRIV(lp), SM_PRIV_SIZE);
- break;
- default:
- note(N_ERROR, "notify_host: unknown notify type %d",
- NL_TYPE(lp));
- return 0;
- }
+ /* __FORCE__ loopback for callbacks to lockd ... */
+ /* Just in case we somehow ignored it thus far */
+ sin.sin_addr.s_addr = htonl(INADDR_LOOPBACK);
+
+ func = (xdrproc_t) xdr_status;
+ objp = &new_status;
+ new_status.mon_name = NL_MON_NAME(lp);
+ new_status.state = NL_STATE(lp);
+ memcpy(new_status.priv, NL_PRIV(lp), SM_PRIV_SIZE);
lp->xid = xmit_call(sockfd, &sin, prog, vers, proc, func, objp);
if (!lp->xid) {
- note(N_WARNING, "notify_host: failed to notify %s\n",
- inet_ntoa(lp->addr));
+ note(N_WARNING, "notify_host: failed to notify port %d\n",
+ ntohs(lp->port));
}
NL_TIMES(lp) -= 1;
return 1;
}
note(N_WARNING, "recv_rply: [%s] service %d not registered",
- inet_ntoa(lp->addr),
- NL_TYPE(lp) == NOTIFY_REBOOT? SM_PROG : NL_MY_PROG(lp));
- } else if (NL_TYPE(lp) == NOTIFY_REBOOT) {
- dprintf(N_DEBUG, "Notification of %s succeeded.",
- NL_MON_NAME(lp));
- xunlink(SM_BAK_DIR, NL_MON_NAME(lp), 0);
+ inet_ntoa(lp->addr), NL_MY_PROG(lp));
} else {
dprintf(N_DEBUG, "Callback to %s (for %d) succeeded.",
NL_MY_NAME(lp), NL_MON_NAME(lp));
time_t now;
int fd;
- if ((fd = statd_get_socket(0)) < 0)
+ if ((fd = statd_get_socket()) < 0)
return 0;
while ((entry = notify) != NULL && NL_WHEN(entry) < time(&now)) {
NL_WHEN(entry) = time(NULL) + NOTIFY_TIMEOUT;
nlist_remove(¬ify, entry);
nlist_insert_timer(¬ify, entry);
- } else if (NL_TYPE(entry) == NOTIFY_CALLBACK) {
+ } else {
note(N_ERROR,
"Can't callback %s (%d,%d), giving up.",
NL_MY_NAME(entry),
NL_MY_PROG(entry),
NL_MY_VERS(entry));
nlist_free(¬ify, entry);
- } else {
- note(N_ERROR,
- "Can't notify %s, giving up.",
- NL_MON_NAME(entry));
- /* PRC: do the HA callout */
- ha_callout("del-client", NL_MON_NAME(entry), NL_MY_NAME(entry), -1);
- xunlink(SM_BAK_DIR, NL_MON_NAME(entry), 0);
- nlist_free(¬ify, entry);
}
}