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NFS update

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git-svn-id: https://nuttx.svn.sourceforge.net/svnroot/nuttx/trunk@4650 7fd9a85b-ad96-42d3-883c-3090e2eb8679
This commit is contained in:
patacongo
2012-04-23 23:21:30 +00:00
parent 01de46fb3f
commit b1cb7ef744
9 changed files with 97 additions and 327 deletions
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nuttx/include/nuttx/fs/nfs.h
+5 -244
View File
@@ -51,145 +51,7 @@
* Pre-processor Definitions
****************************************************************************/
#define NFS_TICKINTVL 5 /* Desired time for a tick (msec) */
#define NFS_HZ (CLOCKS_PER_SEC / nfs_ticks) /* Ticks/sec */
#define NFS_TIMEO (1 * NFS_HZ) /* Default timeout = 1 second */
#define NFS_MINTIMEO (1 * NFS_HZ) /* Min timeout to use */
#define NFS_MAXTIMEO (60 * NFS_HZ) /* Max timeout to backoff to */
#define NFS_MINIDEMTIMEO (5 * NFS_HZ) /* Min timeout for non-idempotent ops */
#define NFS_TIMEOUTMUL 2 /* Timeout/Delay multiplier */
#define NFS_MAXREXMIT 100 /* Stop counting after this many */
#define NFS_RETRANS 10 /* Num of retrans for soft mounts */
#define NFS_MAXGRPS 16 /* Max. size of groups list */
#define NFS_MINATTRTIMO 5 /* Attribute cache timeout in sec */
#define NFS_MAXATTRTIMO 60
#define NFS_WSIZE 8192 /* Def. write data size <= 8192 */
#define NFS_RSIZE 8192 /* Def. read data size <= 8192 */
#define NFS_READDIRSIZE 8192 /* Def. readdir size */
#define NFS_DEFRAHEAD 1 /* Def. read ahead # blocks */
#define NFS_MAXRAHEAD 4 /* Max. read ahead # blocks */
#define NFS_MAXASYNCDAEMON 20 /* Max. number async_daemons runable */
/* Ideally, NFS_DIRBLKSIZ should be bigger, but I've seen servers with
* broken NFS/ethernet drivers that won't work with anything bigger (Linux..)
*/
#define NFS_DIRBLKSIZ 1024 /* Must be a multiple of DIRBLKSIZ */
#define NFS_READDIRBLKSIZ 512 /* Size of read dir blocks. XXX */
/* Oddballs */
#define NFS_CMPFH(n, f, s) \
((n)->n_fhsize == (s) && !bcmp((void *)(n)->n_fhp, (void *)(f), (s)))
#define NFS_ISV3(i) (VFSTONFS((i)->f_inode)->nm_flag & NFSMNT_NFSV3)
#define NFS_SRVMAXDATA(n) \
(((n)->nd_flag & ND_NFSV3) ? (((n)->nd_nam2) ? \
NFS_MAXDGRAMDATA : NFS_MAXDATA) : NFS_V2MAXDATA)
/* sys/malloc.h needs M_NFSDIROFF, M_NFSRVDESC and M_NFSBIGFH added. */
#ifndef M_NFSRVDESC
# define M_NFSRVDESC M_TEMP
#endif
#ifndef M_NFSDIROFF
# define M_NFSDIROFF M_TEMP
#endif
#ifndef M_NFSBIGFH
# define M_NFSBIGFH M_TEMP
#endif
/* The B_INVAFTERWRITE flag should be set to whatever is required by the
* buffer cache code to say "Invalidate the block after it is written back".
*/
#define B_INVAFTERWRITE B_INVAL
/* Flags for nfssvc() system call. */
#define NFSSVC_BIOD 0x002
#define NFSSVC_NFSD 0x004
#define NFSSVC_ADDSOCK 0x008
#define NFSSVC_AUTHIN 0x010
#define NFSSVC_GOTAUTH 0x040
#define NFSSVC_AUTHINFAIL 0x080
#define NFSSVC_MNTD 0x100
/* fs.nfs sysctl(3) identifiers */
#define NFS_NFSSTATS 1 /* struct: struct nfsstats */
#define NFS_NIOTHREADS 2 /* number of i/o threads */
#define NFS_MAXID 3
#define FS_NFS_NAMES { \
{ 0, 0 }, \
{ "nfsstats", CTLTYPE_STRUCT }, \
{ "iothreads", CTLTYPE_INT } \
}
#define NFSINT_SIGMASK (sigmask(SIGINT)|sigmask(SIGTERM)|sigmask(SIGKILL)| \
sigmask(SIGHUP)|sigmask(SIGQUIT))
/* Socket errors ignored for connectionless sockets??
* For now, ignore them all
*/
#define NFSIGNORE_SOERROR(s, e) \
((e) != EINTR && (e) != ERESTART && (e) != EWOULDBLOCK && \
((s) & PR_CONNREQUIRED) == 0)
/* Flag values for r_flags */
#define R_TIMING 0x01/* timing request (in mntp) */
#define R_SENT 0x02/* request has been sent */
#define R_SOFTTERM 0x04/* soft mnt, too many retries */
#define R_INTR 0x08/* intr mnt, signal pending */
#define R_SOCKERR 0x10/* Fatal error on socket */
#define R_TPRINTFMSG 0x20/* Did a tprintf msg. */
#define R_MUSTRESEND 0x40/* Must resend request */
/* On fast networks, the estimator will try to reduce the
* timeout lower than the latency of the server's disks,
* which results in too many timeouts, so cap the lower
* bound.
*/
#define NFS_MINRTO (NFS_HZ >> 2)
/* Keep the RTO from increasing to unreasonably large values
* when a server is not responding.
*/
#define NFS_MAXRTO (20 * NFS_HZ)
#define NFS_MAX_TIMER (NFS_WRITE_TIMER)
#define NFS_INITRTT (NFS_HZ << 3)
/* Bits for "ns_flag" */
#define SLP_VALID 0x01/* connection is usable */
#define SLP_DOREC 0x02/* receive operation required */
#define SLP_NEEDQ 0x04/* connection has data to queue from socket */
#define SLP_DISCONN 0x08/* connection is closed */
#define SLP_GETSTREAM 0x10/* extracting RPC from TCP connection */
#define SLP_LASTFRAG 0x20/* last fragment received on TCP connection */
#define SLP_ALLFLAGS 0xff/* convenience */
#define SLP_INIT 0x01/* NFS data undergoing initialization */
#define SLP_WANTINIT 0x02/* thread waiting on NFS initialization */
/* Bits for "nfsd_flag" */
#define NFSD_WAITING 0x01
#define NFSD_REQINPROG 0x02
#define NFSD_NEEDAUTH 0x04
#define NFSD_AUTHFAIL 0x08
/* Bits for "nd_flag" */
#define ND_NFSV3 0x08
#define NFSD_CHECKSLP 0x01
/* NFS mount option flags */
/* NFS mount option flags */
#define NFSMNT_SOFT 0x00000001 /* soft mount (hard is default) */
#define NFSMNT_WSIZE 0x00000002 /* set write size */
@@ -227,14 +89,14 @@
#define NFSMNT_NOAC 0x00080000 /* Turn off attribute cache */
#define NFS_ARGSVERSION 3 /* change when nfs_args changes */
#define NFS_NPROCS 23
#define NFS_MAXFHSIZE 64
#define NFS_MAXFHSIZE 64
#define NFS_PORT 2049
/****************************************************************************
* Public Types
****************************************************************************/
/* File Handle (32 bytes for version 2), variable up to 64 for version 3. */
/* File Handle (32 bytes for version 2), variable up to 64 for version 3. */
union nfsfh
{
@@ -242,106 +104,6 @@ union nfsfh
};
typedef union nfsfh nfsfh_t;
#undef COMP
#ifdef COMP
/* Structures for the nfssvc(2) syscall.
* Not that anyone besides nfsd(8) should ever use it.
*/
struct nfsd_args
{
int sock; /* Socket to serve */
void *name; /* Client addr for connection based sockets */
int namelen; /* Length of name */
};
struct nfsd_srvargs
{
struct nfsd *nsd_nfsd; /* Pointer to in kernel nfsd struct */
uid_t nsd_uid; /* Effective uid mapped to cred */
uint32_t nsd_haddr; /* IP address of client */
int nsd_authlen; /* Length of auth string (ret) */
unsigned char *nsd_authstr; /* Auth string (ret) */
int nsd_verflen; /* and the verifier */
unsigned char *nsd_verfstr;
struct timeval nsd_timestamp; /* timestamp from verifier */
uint32_t nsd_ttl; /* credential ttl (sec) */
};
#endif
#ifdef COMP
/* The set of signals the interrupt an I/O in progress for NFSMNT_INT mounts.
* What should be in this set is open to debate, but I believe that since
* I/O system calls on ufs are never interrupted by signals the set should
* be minimal. My reasoning is that many current programs that use signals
* such as SIGALRM will not expect file I/O system calls to be interrupted
* by them and break.
*/
/* Nfs outstanding request list element */
struct nfsmount;
struct nfsreq
{
dq_entry_t r_chain;
struct nfsmount *r_nmp;
uint32_t r_xid;
int r_flags; /* flags on request, see below */
int r_rexmit; /* current retrans count */
int r_timer; /* tick counter on reply */
int r_procnum; /* NFS procedure number */
int r_rtt; /* RTT for rpc */
};
enum nfs_rto_timers
{
NFS_DEFAULT_TIMER,
NFS_GETATTR_TIMER,
NFS_LOOKUP_TIMER,
NFS_READ_TIMER,
NFS_WRITE_TIMER,
};
/* Network address hash list element */
union nethostaddr
{
uint32_t had_inetaddr;
};
struct nfssvc_sock
{
// TAILQ_ENTRY(nfssvc_sock) ns_chain; /* List of all nfssvc_sock's */
struct file *ns_fp; /* fp from the... */
struct socket *ns_so; /* ...socket this struct wraps */
int ns_flag; /* socket status flags */
int ns_solock; /* lock for connected socket */
int ns_cc; /* actual chars queued */
int ns_reclen; /* length of first queued record */
uint32_t ns_sref; /* # of refs to this struct */
};
/* One of these structures is allocated for each nfsd. */
struct nfsd
{
//TAILQ_ENTRY(nfsd) nfsd_chain; /* List of all nfsd's */
int nfsd_flag; /* NFSD_ flags */
struct nfssvc_sock *nfsd_slp; /* Current socket */
struct nfsrv_descript *nfsd_nd; /* Associated nfsrv_descript */
};
/* This structure is used by the server for describing each request. */
struct nfsrv_descript
{
unsigned int nd_procnum; /* RPC # */
int nd_flag; /* nd_flag */
int nd_repstat; /* Reply status */
uint32_t nd_retxid; /* Reply xid */
};
#endif
/* Arguments to mount NFS */
struct nfs_args
@@ -363,7 +125,6 @@ struct nfs_args
int readahead; /* # of blocks to readahead */
int leaseterm; /* Term (sec) of lease */
int deadthresh; /* Retrans threshold */
//char *hostname; /* server's name */
int acregmin; /* cache attrs for reg files min time */
int acregmax; /* cache attrs for reg files max time */
int acdirmin; /* cache attrs for dirs min time */