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Diffstat (limited to 'fs/nfsd/nfsd.h')
-rw-r--r--fs/nfsd/nfsd.h138
1 files changed, 103 insertions, 35 deletions
diff --git a/fs/nfsd/nfsd.h b/fs/nfsd/nfsd.h
index 6b641cf2c19..847daf37e56 100644
--- a/fs/nfsd/nfsd.h
+++ b/fs/nfsd/nfsd.h
@@ -11,13 +11,48 @@
#include <linux/types.h>
#include <linux/mount.h>
-#include <linux/nfsd/debug.h>
-#include <linux/nfsd/export.h>
-#include <linux/nfsd/stats.h>
+#include <linux/nfs.h>
+#include <linux/nfs2.h>
+#include <linux/nfs3.h>
+#include <linux/nfs4.h>
+#include <linux/sunrpc/svc.h>
+#include <linux/sunrpc/msg_prot.h>
+
+#include <uapi/linux/nfsd/debug.h>
+
+#include "stats.h"
+#include "export.h"
+
+#undef ifdebug
+#ifdef NFSD_DEBUG
+# define ifdebug(flag) if (nfsd_debug & NFSDDBG_##flag)
+#else
+# define ifdebug(flag) if (0)
+#endif
+
/*
* nfsd version
*/
-#define NFSD_SUPPORTED_MINOR_VERSION 1
+#define NFSD_SUPPORTED_MINOR_VERSION 2
+/*
+ * Maximum blocksizes supported by daemon under various circumstances.
+ */
+#define NFSSVC_MAXBLKSIZE RPCSVC_MAXPAYLOAD
+/* NFSv2 is limited by the protocol specification, see RFC 1094 */
+#define NFSSVC_MAXBLKSIZE_V2 (8*1024)
+
+
+/*
+ * Largest number of bytes we need to allocate for an NFS
+ * call or reply. Used to control buffer sizes. We use
+ * the length of v3 WRITE, READDIR and READDIR replies
+ * which are an RPC header, up to 26 XDR units of reply
+ * data, and some page data.
+ *
+ * Note that accuracy here doesn't matter too much as the
+ * size is rounded up to a page size when allocating space.
+ */
+#define NFSD_BUFSIZE ((RPC_MAX_HEADER_WITH_AUTH+26)*XDR_UNIT + NFSSVC_MAXBLKSIZE)
struct readdir_cd {
__be32 err; /* 0, nfserr, or nfserr_eof */
@@ -27,25 +62,27 @@ struct readdir_cd {
extern struct svc_program nfsd_program;
extern struct svc_version nfsd_version2, nfsd_version3,
nfsd_version4;
-extern u32 nfsd_supported_minorversion;
extern struct mutex nfsd_mutex;
-extern struct svc_serv *nfsd_serv;
extern spinlock_t nfsd_drc_lock;
-extern unsigned int nfsd_drc_max_mem;
-extern unsigned int nfsd_drc_mem_used;
+extern unsigned long nfsd_drc_max_mem;
+extern unsigned long nfsd_drc_mem_used;
extern const struct seq_operations nfs_exports_op;
/*
* Function prototypes.
*/
-int nfsd_svc(unsigned short port, int nrservs);
+int nfsd_svc(int nrservs, struct net *net);
int nfsd_dispatch(struct svc_rqst *rqstp, __be32 *statp);
-int nfsd_nrthreads(void);
-int nfsd_nrpools(void);
-int nfsd_get_nrthreads(int n, int *);
-int nfsd_set_nrthreads(int n, int *);
+int nfsd_nrthreads(struct net *);
+int nfsd_nrpools(struct net *);
+int nfsd_get_nrthreads(int n, int *, struct net *);
+int nfsd_set_nrthreads(int n, int *, struct net *);
+int nfsd_pool_stats_open(struct inode *, struct file *);
+int nfsd_pool_stats_release(struct inode *, struct file *);
+
+void nfsd_destroy(struct net *net);
#if defined(CONFIG_NFSD_V2_ACL) || defined(CONFIG_NFSD_V3_ACL)
#ifdef CONFIG_NFSD_V2_ACL
@@ -64,7 +101,7 @@ enum vers_op {NFSD_SET, NFSD_CLEAR, NFSD_TEST, NFSD_AVAIL };
int nfsd_vers(int vers, enum vers_op change);
int nfsd_minorversion(u32 minorversion, enum vers_op change);
void nfsd_reset_versions(void);
-int nfsd_create_serv(void);
+int nfsd_create_serv(struct net *net);
extern int nfsd_max_blksize;
@@ -77,20 +114,26 @@ static inline int nfsd_v4client(struct svc_rqst *rq)
* NFSv4 State
*/
#ifdef CONFIG_NFSD_V4
-extern unsigned int max_delegations;
-int nfs4_state_init(void);
+extern unsigned long max_delegations;
+int nfsd4_init_slabs(void);
void nfsd4_free_slabs(void);
int nfs4_state_start(void);
+int nfs4_state_start_net(struct net *net);
void nfs4_state_shutdown(void);
+void nfs4_state_shutdown_net(struct net *net);
void nfs4_reset_lease(time_t leasetime);
int nfs4_reset_recoverydir(char *recdir);
+char * nfs4_recoverydir(void);
#else
-static inline int nfs4_state_init(void) { return 0; }
+static inline int nfsd4_init_slabs(void) { return 0; }
static inline void nfsd4_free_slabs(void) { }
static inline int nfs4_state_start(void) { return 0; }
+static inline int nfs4_state_start_net(struct net *net) { return 0; }
static inline void nfs4_state_shutdown(void) { }
+static inline void nfs4_state_shutdown_net(struct net *net) { }
static inline void nfs4_reset_lease(time_t leasetime) { }
static inline int nfs4_reset_recoverydir(char *recdir) { return 0; }
+static inline char * nfs4_recoverydir(void) {return NULL; }
#endif
/*
@@ -158,6 +201,7 @@ void nfsd_lockd_shutdown(void);
#define nfserr_attrnotsupp cpu_to_be32(NFSERR_ATTRNOTSUPP)
#define nfserr_bad_xdr cpu_to_be32(NFSERR_BAD_XDR)
#define nfserr_openmode cpu_to_be32(NFSERR_OPENMODE)
+#define nfserr_badowner cpu_to_be32(NFSERR_BADOWNER)
#define nfserr_locks_held cpu_to_be32(NFSERR_LOCKS_HELD)
#define nfserr_op_illegal cpu_to_be32(NFSERR_OP_ILLEGAL)
#define nfserr_grace cpu_to_be32(NFSERR_GRACE)
@@ -205,6 +249,12 @@ void nfsd_lockd_shutdown(void);
#define nfserr_reject_deleg cpu_to_be32(NFS4ERR_REJECT_DELEG)
#define nfserr_returnconflict cpu_to_be32(NFS4ERR_RETURNCONFLICT)
#define nfserr_deleg_revoked cpu_to_be32(NFS4ERR_DELEG_REVOKED)
+#define nfserr_partner_notsupp cpu_to_be32(NFS4ERR_PARTNER_NOTSUPP)
+#define nfserr_partner_no_auth cpu_to_be32(NFS4ERR_PARTNER_NO_AUTH)
+#define nfserr_metadata_notsupp cpu_to_be32(NFS4ERR_METADATA_NOTSUPP)
+#define nfserr_offload_denied cpu_to_be32(NFS4ERR_OFFLOAD_DENIED)
+#define nfserr_wrong_lfs cpu_to_be32(NFS4ERR_WRONG_LFS)
+#define nfserr_badlabel cpu_to_be32(NFS4ERR_BADLABEL)
/* error codes for internal use */
/* if a request fails due to kmalloc failure, it gets dropped.
@@ -221,16 +271,8 @@ void nfsd_lockd_shutdown(void);
/* Check for dir entries '.' and '..' */
#define isdotent(n, l) (l < 3 && n[0] == '.' && (l == 1 || n[1] == '.'))
-/*
- * Time of server startup
- */
-extern struct timeval nfssvc_boot;
-
#ifdef CONFIG_NFSD_V4
-extern time_t nfsd4_lease;
-extern time_t nfsd4_grace;
-
/* before processing a COMPOUND operation, we have to check that there
* is enough space in the buffer for XDR encode to succeed. otherwise,
* we might process an operation with side effects, and be unable to
@@ -247,7 +289,7 @@ extern time_t nfsd4_grace;
* reason.
*/
#define COMPOUND_SLACK_SPACE 140 /* OP_GETFH */
-#define COMPOUND_ERR_SLACK_SPACE 12 /* OP_SETATTR */
+#define COMPOUND_ERR_SLACK_SPACE 16 /* OP_SETATTR */
#define NFSD_LAUNDROMAT_MINTIMEOUT 1 /* seconds */
@@ -292,6 +334,13 @@ extern time_t nfsd4_grace;
#define NFSD4_1_SUPPORTED_ATTRS_WORD2 \
(NFSD4_SUPPORTED_ATTRS_WORD2 | FATTR4_WORD2_SUPPATTR_EXCLCREAT)
+#ifdef CONFIG_NFSD_V4_SECURITY_LABEL
+#define NFSD4_2_SUPPORTED_ATTRS_WORD2 \
+ (NFSD4_1_SUPPORTED_ATTRS_WORD2 | FATTR4_WORD2_SECURITY_LABEL)
+#else
+#define NFSD4_2_SUPPORTED_ATTRS_WORD2 0
+#endif
+
static inline u32 nfsd_suppattrs0(u32 minorversion)
{
return minorversion ? NFSD4_1_SUPPORTED_ATTRS_WORD0
@@ -306,21 +355,28 @@ static inline u32 nfsd_suppattrs1(u32 minorversion)
static inline u32 nfsd_suppattrs2(u32 minorversion)
{
- return minorversion ? NFSD4_1_SUPPORTED_ATTRS_WORD2
- : NFSD4_SUPPORTED_ATTRS_WORD2;
+ switch (minorversion) {
+ default: return NFSD4_2_SUPPORTED_ATTRS_WORD2;
+ case 1: return NFSD4_1_SUPPORTED_ATTRS_WORD2;
+ case 0: return NFSD4_SUPPORTED_ATTRS_WORD2;
+ }
}
/* These will return ERR_INVAL if specified in GETATTR or READDIR. */
-#define NFSD_WRITEONLY_ATTRS_WORD1 \
-(FATTR4_WORD1_TIME_ACCESS_SET | FATTR4_WORD1_TIME_MODIFY_SET)
+#define NFSD_WRITEONLY_ATTRS_WORD1 \
+ (FATTR4_WORD1_TIME_ACCESS_SET | FATTR4_WORD1_TIME_MODIFY_SET)
/* These are the only attrs allowed in CREATE/OPEN/SETATTR. */
-#define NFSD_WRITEABLE_ATTRS_WORD0 \
-(FATTR4_WORD0_SIZE | FATTR4_WORD0_ACL )
-#define NFSD_WRITEABLE_ATTRS_WORD1 \
-(FATTR4_WORD1_MODE | FATTR4_WORD1_OWNER | FATTR4_WORD1_OWNER_GROUP \
- | FATTR4_WORD1_TIME_ACCESS_SET | FATTR4_WORD1_TIME_MODIFY_SET)
+#define NFSD_WRITEABLE_ATTRS_WORD0 \
+ (FATTR4_WORD0_SIZE | FATTR4_WORD0_ACL)
+#define NFSD_WRITEABLE_ATTRS_WORD1 \
+ (FATTR4_WORD1_MODE | FATTR4_WORD1_OWNER | FATTR4_WORD1_OWNER_GROUP \
+ | FATTR4_WORD1_TIME_ACCESS_SET | FATTR4_WORD1_TIME_MODIFY_SET)
+#ifdef CONFIG_NFSD_V4_SECURITY_LABEL
+#define NFSD_WRITEABLE_ATTRS_WORD2 FATTR4_WORD2_SECURITY_LABEL
+#else
#define NFSD_WRITEABLE_ATTRS_WORD2 0
+#endif
#define NFSD_SUPPATTR_EXCLCREAT_WORD0 \
NFSD_WRITEABLE_ATTRS_WORD0
@@ -334,6 +390,18 @@ static inline u32 nfsd_suppattrs2(u32 minorversion)
#define NFSD_SUPPATTR_EXCLCREAT_WORD2 \
NFSD_WRITEABLE_ATTRS_WORD2
+extern int nfsd4_is_junction(struct dentry *dentry);
+extern int register_cld_notifier(void);
+extern void unregister_cld_notifier(void);
+#else /* CONFIG_NFSD_V4 */
+static inline int nfsd4_is_junction(struct dentry *dentry)
+{
+ return 0;
+}
+
+#define register_cld_notifier() 0
+#define unregister_cld_notifier() do { } while(0)
+
#endif /* CONFIG_NFSD_V4 */
#endif /* LINUX_NFSD_NFSD_H */
generated by cgit v1.2.3-70-g09d2 (git 2.46.0) at 2025-11-04 13:17:53 +0000