linux-hardened/net/sunrpc/netns.h
Trond Myklebust 786615bc1c SUNRPC: If the rpcbind channel is disconnected, fail the call to unregister
If rpcbind causes our connection to the AF_LOCAL socket to close after
we've registered a service, then we want to be careful about reconnecting
since the mount namespace may have changed.

By simply refusing to reconnect the AF_LOCAL socket in the case of
unregister, we avoid the need to somehow save the mount namespace. While
this may lead to some services not unregistering properly, it should
be safe.

Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
Cc: Nix <nix@esperi.org.uk>
Cc: Jeff Layton <jlayton@redhat.com>
Cc: stable@vger.kernel.org # 3.9.x
2013-08-07 17:07:18 -04:00

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C

#ifndef __SUNRPC_NETNS_H__
#define __SUNRPC_NETNS_H__
#include <net/net_namespace.h>
#include <net/netns/generic.h>
struct cache_detail;
struct sunrpc_net {
struct proc_dir_entry *proc_net_rpc;
struct cache_detail *ip_map_cache;
struct cache_detail *unix_gid_cache;
struct cache_detail *rsc_cache;
struct cache_detail *rsi_cache;
struct super_block *pipefs_sb;
struct mutex pipefs_sb_lock;
struct list_head all_clients;
spinlock_t rpc_client_lock;
struct rpc_clnt *rpcb_local_clnt;
struct rpc_clnt *rpcb_local_clnt4;
spinlock_t rpcb_clnt_lock;
unsigned int rpcb_users;
unsigned int rpcb_is_af_local : 1;
struct mutex gssp_lock;
wait_queue_head_t gssp_wq;
struct rpc_clnt *gssp_clnt;
int use_gss_proxy;
int pipe_version;
atomic_t pipe_users;
struct proc_dir_entry *use_gssp_proc;
unsigned int gssd_running;
};
extern int sunrpc_net_id;
int ip_map_cache_create(struct net *);
void ip_map_cache_destroy(struct net *);
#endif