summaryrefslogtreecommitdiffstats
path: root/include/linux/lockd
diff options
context:
space:
mode:
Diffstat (limited to 'include/linux/lockd')
-rw-r--r--include/linux/lockd/lockd.h68
-rw-r--r--include/linux/lockd/sm_inter.h48
-rw-r--r--include/linux/lockd/xdr.h15
3 files changed, 54 insertions, 77 deletions
diff --git a/include/linux/lockd/lockd.h b/include/linux/lockd/lockd.h
index 23da3fa69ef..aa6fe7026de 100644
--- a/include/linux/lockd/lockd.h
+++ b/include/linux/lockd/lockd.h
@@ -43,8 +43,8 @@ struct nlm_host {
struct sockaddr_storage h_addr; /* peer address */
size_t h_addrlen;
struct sockaddr_storage h_srcaddr; /* our address (optional) */
- struct rpc_clnt * h_rpcclnt; /* RPC client to talk to peer */
- char * h_name; /* remote hostname */
+ struct rpc_clnt *h_rpcclnt; /* RPC client to talk to peer */
+ char *h_name; /* remote hostname */
u32 h_version; /* interface version */
unsigned short h_proto; /* transport proto */
unsigned short h_reclaiming : 1,
@@ -64,21 +64,29 @@ struct nlm_host {
spinlock_t h_lock;
struct list_head h_granted; /* Locks in GRANTED state */
struct list_head h_reclaim; /* Locks in RECLAIM state */
- struct nsm_handle * h_nsmhandle; /* NSM status handle */
-
- char h_addrbuf[48], /* address eyecatchers */
- h_srcaddrbuf[48];
+ struct nsm_handle *h_nsmhandle; /* NSM status handle */
+ char *h_addrbuf; /* address eyecatcher */
};
+/*
+ * The largest string sm_addrbuf should hold is a full-size IPv6 address
+ * (no "::" anywhere) with a scope ID. The buffer size is computed to
+ * hold eight groups of colon-separated four-hex-digit numbers, a
+ * percent sign, a scope id (at most 32 bits, in decimal), and NUL.
+ */
+#define NSM_ADDRBUF ((8 * 4 + 7) + (1 + 10) + 1)
+
struct nsm_handle {
struct list_head sm_link;
atomic_t sm_count;
- char * sm_name;
+ char *sm_mon_name;
+ char *sm_name;
struct sockaddr_storage sm_addr;
size_t sm_addrlen;
unsigned int sm_monitored : 1,
sm_sticky : 1; /* don't unmonitor */
- char sm_addrbuf[48]; /* address eyecatcher */
+ struct nsm_private sm_priv;
+ char sm_addrbuf[NSM_ADDRBUF];
};
/*
@@ -104,16 +112,6 @@ static inline struct sockaddr *nlm_srcaddr(const struct nlm_host *host)
return (struct sockaddr *)&host->h_srcaddr;
}
-static inline struct sockaddr_in *nsm_addr_in(const struct nsm_handle *handle)
-{
- return (struct sockaddr_in *)&handle->sm_addr;
-}
-
-static inline struct sockaddr *nsm_addr(const struct nsm_handle *handle)
-{
- return (struct sockaddr *)&handle->sm_addr;
-}
-
/*
* Map an fl_owner_t into a unique 32-bit "pid"
*/
@@ -197,6 +195,7 @@ extern struct svc_procedure nlmsvc_procedures4[];
extern int nlmsvc_grace_period;
extern unsigned long nlmsvc_timeout;
extern int nsm_use_hostnames;
+extern int nsm_local_state;
/*
* Lockd client functions
@@ -231,10 +230,20 @@ void nlm_rebind_host(struct nlm_host *);
struct nlm_host * nlm_get_host(struct nlm_host *);
void nlm_release_host(struct nlm_host *);
void nlm_shutdown_hosts(void);
-extern void nlm_host_rebooted(const struct sockaddr_in *, const char *,
- unsigned int, u32);
-void nsm_release(struct nsm_handle *);
+void nlm_host_rebooted(const struct nlm_reboot *);
+/*
+ * Host monitoring
+ */
+int nsm_monitor(const struct nlm_host *host);
+void nsm_unmonitor(const struct nlm_host *host);
+
+struct nsm_handle *nsm_get_handle(const struct sockaddr *sap,
+ const size_t salen,
+ const char *hostname,
+ const size_t hostname_len);
+struct nsm_handle *nsm_reboot_lookup(const struct nlm_reboot *info);
+void nsm_release(struct nsm_handle *nsm);
/*
* This is used in garbage collection and resource reclaim
@@ -282,16 +291,25 @@ static inline struct inode *nlmsvc_file_inode(struct nlm_file *file)
static inline int __nlm_privileged_request4(const struct sockaddr *sap)
{
const struct sockaddr_in *sin = (struct sockaddr_in *)sap;
- return (sin->sin_addr.s_addr == htonl(INADDR_LOOPBACK)) &&
- (ntohs(sin->sin_port) < 1024);
+
+ if (ntohs(sin->sin_port) > 1023)
+ return 0;
+
+ return ipv4_is_loopback(sin->sin_addr.s_addr);
}
#if defined(CONFIG_IPV6) || defined(CONFIG_IPV6_MODULE)
static inline int __nlm_privileged_request6(const struct sockaddr *sap)
{
const struct sockaddr_in6 *sin6 = (struct sockaddr_in6 *)sap;
- return (ipv6_addr_type(&sin6->sin6_addr) & IPV6_ADDR_LOOPBACK) &&
- (ntohs(sin6->sin6_port) < 1024);
+
+ if (ntohs(sin6->sin6_port) > 1023)
+ return 0;
+
+ if (ipv6_addr_type(&sin6->sin6_addr) & IPV6_ADDR_MAPPED)
+ return ipv4_is_loopback(sin6->sin6_addr.s6_addr32[3]);
+
+ return ipv6_addr_type(&sin6->sin6_addr) & IPV6_ADDR_LOOPBACK;
}
#else /* defined(CONFIG_IPV6) || defined(CONFIG_IPV6_MODULE) */
static inline int __nlm_privileged_request6(const struct sockaddr *sap)
diff --git a/include/linux/lockd/sm_inter.h b/include/linux/lockd/sm_inter.h
deleted file mode 100644
index 5a5448bdb17..00000000000
--- a/include/linux/lockd/sm_inter.h
+++ /dev/null
@@ -1,48 +0,0 @@
-/*
- * linux/include/linux/lockd/sm_inter.h
- *
- * Declarations for the kernel statd client.
- *
- * Copyright (C) 1996, Olaf Kirch <okir@monad.swb.de>
- */
-
-#ifndef LINUX_LOCKD_SM_INTER_H
-#define LINUX_LOCKD_SM_INTER_H
-
-#define SM_PROGRAM 100024
-#define SM_VERSION 1
-#define SM_STAT 1
-#define SM_MON 2
-#define SM_UNMON 3
-#define SM_UNMON_ALL 4
-#define SM_SIMU_CRASH 5
-#define SM_NOTIFY 6
-
-#define SM_MAXSTRLEN 1024
-#define SM_PRIV_SIZE 16
-
-/*
- * Arguments for all calls to statd
- */
-struct nsm_args {
- __be32 addr; /* remote address */
- u32 prog; /* RPC callback info */
- u32 vers;
- u32 proc;
-
- char * mon_name;
-};
-
-/*
- * Result returned by statd
- */
-struct nsm_res {
- u32 status;
- u32 state;
-};
-
-int nsm_monitor(struct nlm_host *);
-int nsm_unmonitor(struct nlm_host *);
-extern int nsm_local_state;
-
-#endif /* LINUX_LOCKD_SM_INTER_H */
diff --git a/include/linux/lockd/xdr.h b/include/linux/lockd/xdr.h
index d6b3a802c04..7dc5b6cb44c 100644
--- a/include/linux/lockd/xdr.h
+++ b/include/linux/lockd/xdr.h
@@ -13,6 +13,13 @@
#include <linux/nfs.h>
#include <linux/sunrpc/xdr.h>
+#define SM_MAXSTRLEN 1024
+#define SM_PRIV_SIZE 16
+
+struct nsm_private {
+ unsigned char data[SM_PRIV_SIZE];
+};
+
struct svc_rqst;
#define NLM_MAXCOOKIELEN 32
@@ -77,10 +84,10 @@ struct nlm_res {
* statd callback when client has rebooted
*/
struct nlm_reboot {
- char * mon;
- unsigned int len;
- u32 state;
- __be32 addr;
+ char *mon;
+ unsigned int len;
+ u32 state;
+ struct nsm_private priv;
};
/*
generated by cgit v1.2.3-70-g09d2 (git 2.46.0) at 2024-12-17 23:45:07 +0000