/*
* SM_NOTIFY: private callback from statd (not part of official NLM proto)
*/
static int
nlm4svc_proc_sm_notify(struct svc_rqst *rqstp, struct nlm_reboot *argp,
void *resp)
{
struct sockaddr_in saddr = rqstp->rq_addr;
struct nlm_host *host;
dprintk("lockd: SM_NOTIFY called\n");
if (saddr.sin_addr.s_addr != htonl(INADDR_LOOPBACK)
|| ntohs(saddr.sin_port) >= 1024) {
printk(KERN_WARNING
"lockd: rejected NSM callback from %08x:%d\n",
ntohl(rqstp->rq_addr.sin_addr.s_addr),
ntohs(rqstp->rq_addr.sin_port));
return rpc_system_err;
}
/* Obtain the host pointer for this NFS server and try to
* reclaim all locks we hold on this server.
*/
saddr.sin_addr.s_addr = argp->addr;
if ((host = nlm_lookup_host(NULL, &saddr, IPPROTO_UDP, 1)) != NULL) {
nlmclnt_recovery(host, argp->state);
nlm_release_host(host);
}
/* If we run on an NFS server, delete all locks held by the client */
if (nlmsvc_ops != NULL) {
struct svc_client *clnt;
saddr.sin_addr.s_addr = argp->addr;
if ((clnt = nlmsvc_ops->exp_getclient(&saddr)) != NULL
&& (host = nlm_lookup_host(clnt, &saddr, 0, 0)) != NULL) {
nlmsvc_free_host_resources(host);
}
nlm_release_host(host);
}
return rpc_success;
}
/*
* SM_NOTIFY: private callback from statd (not part of official NLM proto)
*/
static int
nlm4svc_proc_sm_notify(struct svc_rqst *rqstp, struct nlm_reboot *argp,
void *resp)
{
struct sockaddr_in saddr = rqstp->rq_addr;
int vers = argp->vers;
int prot = argp->proto >> 1;
struct nlm_host *host;
dprintk("lockd: SM_NOTIFY called\n");
if (saddr.sin_addr.s_addr != htonl(INADDR_LOOPBACK)
|| ntohs(saddr.sin_port) >= 1024) {
printk(KERN_WARNING
"lockd: rejected NSM callback from %08x:%d\n",
ntohl(rqstp->rq_addr.sin_addr.s_addr),
ntohs(rqstp->rq_addr.sin_port));
return rpc_system_err;
}
/* Obtain the host pointer for this NFS server and try to
* reclaim all locks we hold on this server.
*/
saddr.sin_addr.s_addr = argp->addr;
if ((argp->proto & 1)==0) {
if ((host = nlmclnt_lookup_host(&saddr, prot, vers)) != NULL) {
nlmclnt_recovery(host, argp->state);
nlm_release_host(host);
}
} else {
/* If we run on an NFS server, delete all locks held by the client */
if ((host = nlm_lookup_host(1, &saddr, prot, vers)) != NULL) {
nlmsvc_free_host_resources(host);
nlm_release_host(host);
}
}
return rpc_success;
}
/*
* Find an NLM client handle in the cache. If there is none, create it.
*/
struct nlm_host *
nlmsvc_lookup_host(struct svc_rqst *rqstp)
{
return nlm_lookup_host(1, &rqstp->rq_addr,
rqstp->rq_prot, rqstp->rq_vers);
}
/*
* Find an NLM server handle in the cache. If there is none, create it.
*/
struct nlm_host *
nlmclnt_lookup_host(struct sockaddr_in *sin, int proto, int version)
{
return nlm_lookup_host(0, sin, proto, version);
}
