Modify lib/libstand/nfs.c to use NFSv3 instead of NFSv2.
This allows the nfs_getrootfh() function to return the correct file handle size to pxe.c for pxeboot. It also results in NFSv2 no longer being used by default anywhere in FreeBSD. If built with OLD_NFSV2 defined, the old code that predated this patch will be built and NFSv2 will be used. Tested by: danny at cs.huji.ac.il MFC after: 2 weeks
This commit is contained in:
Rick Macklem
parent
8c6cd8631f
commit
de5f647070
Notes:
svn2git
2020-12-20 02:59:44 +00:00
svn path=/head/; revision=212125
@ -50,7 +50,10 @@ __FBSDID("$FreeBSD$");
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#define NFS_DEBUGxx
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#define NFSREAD_SIZE 1024
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/* Define our own NFS attributes without NQNFS stuff. */
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#ifdef OLD_NFSV2
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struct nfsv2_fattrs {
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n_long fa_type;
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n_long fa_mode;
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@ -68,7 +71,6 @@ struct nfsv2_fattrs {
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struct nfsv2_time fa_ctime;
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};
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struct nfs_read_args {
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u_char fh[NFS_FHSIZE];
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n_long off;
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@ -77,7 +79,6 @@ struct nfs_read_args {
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};
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/* Data part of nfs rpc reply (also the largest thing we receive) */
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#define NFSREAD_SIZE 1024
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struct nfs_read_repl {
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n_long errno;
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struct nfsv2_fattrs fa;
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@ -116,6 +117,72 @@ struct nfs_iodesc {
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u_char fh[NFS_FHSIZE];
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struct nfsv2_fattrs fa; /* all in network order */
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};
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#else /* !OLD_NFSV2 */
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/* NFSv3 definitions */
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#define NFS_V3MAXFHSIZE 64
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#define NFS_VER3 3
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#define RPCMNT_VER3 3
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#define NFSPROCV3_LOOKUP 3
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#define NFSPROCV3_READLINK 5
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#define NFSPROCV3_READ 6
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#define NFSPROCV3_READDIR 16
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typedef struct {
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uint32_t val[2];
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} n_quad;
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struct nfsv3_time {
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uint32_t nfs_sec;
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uint32_t nfs_nsec;
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};
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struct nfsv3_fattrs {
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uint32_t fa_type;
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uint32_t fa_mode;
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uint32_t fa_nlink;
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uint32_t fa_uid;
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uint32_t fa_gid;
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n_quad fa_size;
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n_quad fa_used;
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n_quad fa_rdev;
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n_quad fa_fsid;
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n_quad fa_fileid;
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struct nfsv3_time fa_atime;
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struct nfsv3_time fa_mtime;
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struct nfsv3_time fa_ctime;
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};
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/*
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* For NFSv3, the file handle is variable in size, so most fixed sized
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* structures for arguments won't work. For most cases, a structure
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* that starts with any fixed size section is followed by an array
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* that covers the maximum size required.
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*/
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struct nfsv3_readdir_repl {
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uint32_t errno;
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uint32_t ok;
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struct nfsv3_fattrs fa;
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uint32_t cookiev0;
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uint32_t cookiev1;
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};
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struct nfsv3_readdir_entry {
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uint32_t follows;
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uint32_t fid0;
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uint32_t fid1;
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uint32_t len;
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uint32_t nameplus[0];
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};
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struct nfs_iodesc {
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struct iodesc *iodesc;
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off_t off;
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uint32_t fhsize;
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u_char fh[NFS_V3MAXFHSIZE];
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struct nfsv3_fattrs fa; /* all in network order */
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};
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#endif /* OLD_NFSV2 */
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/*
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* XXX interactions with tftp? See nfswrapper.c for a confusing
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@ -142,6 +209,7 @@ struct fs_ops nfs_fsops = {
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nfs_readdir
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};
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#ifdef OLD_NFSV2
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/*
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* Fetch the root file handle (call mount daemon)
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* Return zero or error number.
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@ -745,3 +813,675 @@ nfs_readdir(struct open_file *f, struct dirent *d)
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cookie = ntohl(roff->cookie);
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return 0;
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}
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#else /* !OLD_NFSV2 */
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/*
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* Fetch the root file handle (call mount daemon)
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* Return zero or error number.
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*/
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int
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nfs_getrootfh(struct iodesc *d, char *path, uint32_t *fhlenp, u_char *fhp)
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{
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int len;
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struct args {
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uint32_t len;
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char path[FNAME_SIZE];
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} *args;
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struct repl {
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uint32_t errno;
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uint32_t fhsize;
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u_char fh[NFS_V3MAXFHSIZE];
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uint32_t authcnt;
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uint32_t auth[7];
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} *repl;
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struct {
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uint32_t h[RPC_HEADER_WORDS];
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struct args d;
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} sdata;
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struct {
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uint32_t h[RPC_HEADER_WORDS];
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struct repl d;
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} rdata;
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size_t cc;
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#ifdef NFS_DEBUG
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if (debug)
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printf("nfs_getrootfh: %s\n", path);
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#endif
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args = &sdata.d;
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repl = &rdata.d;
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bzero(args, sizeof(*args));
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len = strlen(path);
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if (len > sizeof(args->path))
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len = sizeof(args->path);
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args->len = htonl(len);
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bcopy(path, args->path, len);
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len = sizeof(uint32_t) + roundup(len, sizeof(uint32_t));
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cc = rpc_call(d, RPCPROG_MNT, RPCMNT_VER3, RPCMNT_MOUNT,
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args, len, repl, sizeof(*repl));
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if (cc == -1)
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/* errno was set by rpc_call */
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return (errno);
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if (cc < 2 * sizeof (uint32_t))
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return (EBADRPC);
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if (repl->errno != 0)
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return (ntohl(repl->errno));
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*fhlenp = ntohl(repl->fhsize);
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bcopy(repl->fh, fhp, *fhlenp);
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return (0);
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}
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/*
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* Lookup a file. Store handle and attributes.
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* Return zero or error number.
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*/
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int
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nfs_lookupfh(struct nfs_iodesc *d, const char *name, struct nfs_iodesc *newfd)
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{
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int len, rlen, pos;
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struct args {
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uint32_t fhsize;
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uint32_t fhplusname[1 +
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(NFS_V3MAXFHSIZE + FNAME_SIZE) / sizeof(uint32_t)];
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} *args;
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struct repl {
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uint32_t errno;
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uint32_t fhsize;
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uint32_t fhplusattr[(NFS_V3MAXFHSIZE +
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2 * (sizeof(uint32_t) +
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sizeof(struct nfsv3_fattrs))) / sizeof(uint32_t)];
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} *repl;
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struct {
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uint32_t h[RPC_HEADER_WORDS];
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struct args d;
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} sdata;
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struct {
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uint32_t h[RPC_HEADER_WORDS];
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struct repl d;
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} rdata;
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ssize_t cc;
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#ifdef NFS_DEBUG
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if (debug)
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printf("lookupfh: called\n");
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#endif
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args = &sdata.d;
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repl = &rdata.d;
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bzero(args, sizeof(*args));
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args->fhsize = htonl(d->fhsize);
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bcopy(d->fh, args->fhplusname, d->fhsize);
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len = strlen(name);
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if (len > FNAME_SIZE)
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len = FNAME_SIZE;
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pos = roundup(d->fhsize, sizeof(uint32_t)) / sizeof(uint32_t);
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args->fhplusname[pos++] = htonl(len);
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bcopy(name, &args->fhplusname[pos], len);
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len = sizeof(uint32_t) + pos * sizeof(uint32_t) +
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roundup(len, sizeof(uint32_t));
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rlen = sizeof(*repl);
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cc = rpc_call(d->iodesc, NFS_PROG, NFS_VER3, NFSPROCV3_LOOKUP,
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args, len, repl, rlen);
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if (cc == -1)
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return (errno); /* XXX - from rpc_call */
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if (cc < 2 * sizeof(uint32_t))
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return (EIO);
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if (repl->errno != 0)
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/* saerrno.h now matches NFS error numbers. */
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return (ntohl(repl->errno));
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newfd->fhsize = ntohl(repl->fhsize);
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bcopy(repl->fhplusattr, &newfd->fh, newfd->fhsize);
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pos = roundup(newfd->fhsize, sizeof(uint32_t)) / sizeof(uint32_t);
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if (repl->fhplusattr[pos++] == 0)
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return (EIO);
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bcopy(&repl->fhplusattr[pos], &newfd->fa, sizeof(newfd->fa));
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return (0);
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}
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#ifndef NFS_NOSYMLINK
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/*
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* Get the destination of a symbolic link.
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*/
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int
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nfs_readlink(struct nfs_iodesc *d, char *buf)
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{
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struct args {
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uint32_t fhsize;
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u_char fh[NFS_V3MAXFHSIZE];
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} *args;
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struct repl {
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uint32_t errno;
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uint32_t ok;
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struct nfsv3_fattrs fa;
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uint32_t len;
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u_char path[NFS_MAXPATHLEN];
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} *repl;
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struct {
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uint32_t h[RPC_HEADER_WORDS];
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struct args d;
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} sdata;
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struct {
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uint32_t h[RPC_HEADER_WORDS];
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struct repl d;
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} rdata;
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ssize_t cc;
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#ifdef NFS_DEBUG
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if (debug)
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printf("readlink: called\n");
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#endif
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args = &sdata.d;
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repl = &rdata.d;
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bzero(args, sizeof(*args));
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args->fhsize = htonl(d->fhsize);
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bcopy(d->fh, args->fh, d->fhsize);
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cc = rpc_call(d->iodesc, NFS_PROG, NFS_VER3, NFSPROCV3_READLINK,
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args, sizeof(uint32_t) + roundup(d->fhsize, sizeof(uint32_t)),
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repl, sizeof(*repl));
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if (cc == -1)
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return (errno);
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if (cc < 2 * sizeof(uint32_t))
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return (EIO);
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if (repl->errno != 0)
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return (ntohl(repl->errno));
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if (repl->ok == 0)
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return (EIO);
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repl->len = ntohl(repl->len);
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if (repl->len > NFS_MAXPATHLEN)
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return (ENAMETOOLONG);
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bcopy(repl->path, buf, repl->len);
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buf[repl->len] = 0;
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return (0);
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}
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#endif
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/*
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* Read data from a file.
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* Return transfer count or -1 (and set errno)
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*/
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ssize_t
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nfs_readdata(struct nfs_iodesc *d, off_t off, void *addr, size_t len)
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{
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struct args {
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uint32_t fhsize;
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uint32_t fhoffcnt[NFS_V3MAXFHSIZE / sizeof(uint32_t) + 3];
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} *args;
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struct repl {
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uint32_t errno;
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uint32_t ok;
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struct nfsv3_fattrs fa;
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uint32_t count;
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uint32_t eof;
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uint32_t len;
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u_char data[NFSREAD_SIZE];
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} *repl;
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struct {
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uint32_t h[RPC_HEADER_WORDS];
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struct args d;
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} sdata;
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struct {
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uint32_t h[RPC_HEADER_WORDS];
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struct repl d;
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} rdata;
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size_t cc;
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long x;
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int hlen, rlen, pos;
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args = &sdata.d;
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repl = &rdata.d;
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bzero(args, sizeof(*args));
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args->fhsize = htonl(d->fhsize);
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bcopy(d->fh, args->fhoffcnt, d->fhsize);
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pos = roundup(d->fhsize, sizeof(uint32_t)) / sizeof(uint32_t);
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args->fhoffcnt[pos++] = 0;
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args->fhoffcnt[pos++] = htonl((uint32_t)off);
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if (len > NFSREAD_SIZE)
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len = NFSREAD_SIZE;
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args->fhoffcnt[pos] = htonl((uint32_t)len);
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hlen = sizeof(*repl) - NFSREAD_SIZE;
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cc = rpc_call(d->iodesc, NFS_PROG, NFS_VER3, NFSPROCV3_READ,
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args, 4 * sizeof(uint32_t) + roundup(d->fhsize, sizeof(uint32_t)),
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repl, sizeof(*repl));
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if (cc == -1)
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/* errno was already set by rpc_call */
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return (-1);
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if (cc < hlen) {
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errno = EBADRPC;
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return (-1);
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}
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if (repl->errno != 0) {
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errno = ntohl(repl->errno);
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return (-1);
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}
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rlen = cc - hlen;
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x = ntohl(repl->count);
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if (rlen < x) {
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printf("nfsread: short packet, %d < %ld\n", rlen, x);
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errno = EBADRPC;
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return (-1);
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}
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bcopy(repl->data, addr, x);
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return (x);
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}
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/*
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* Open a file.
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* return zero or error number
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*/
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int
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nfs_open(const char *upath, struct open_file *f)
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{
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struct iodesc *desc;
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struct nfs_iodesc *currfd;
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char buf[2 * NFS_V3MAXFHSIZE + 3];
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u_char *fh;
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char *cp;
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int i;
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#ifndef NFS_NOSYMLINK
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struct nfs_iodesc *newfd;
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struct nfsv3_fattrs *fa;
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char *ncp;
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int c;
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char namebuf[NFS_MAXPATHLEN + 1];
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char linkbuf[NFS_MAXPATHLEN + 1];
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int nlinks = 0;
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#endif
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int error;
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char *path;
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#ifdef NFS_DEBUG
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if (debug)
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printf("nfs_open: %s (rootpath=%s)\n", upath, rootpath);
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#endif
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if (!rootpath[0]) {
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printf("no rootpath, no nfs\n");
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return (ENXIO);
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}
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/*
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* This is silly - we should look at dv_type but that value is
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* arch dependant and we can't use it here.
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*/
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#ifndef __i386__
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if (strcmp(f->f_dev->dv_name, "net") != 0)
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return (EINVAL);
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#else
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if (strcmp(f->f_dev->dv_name, "pxe") != 0)
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return (EINVAL);
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#endif
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if (!(desc = socktodesc(*(int *)(f->f_devdata))))
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return (EINVAL);
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/* Bind to a reserved port. */
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desc->myport = htons(--rpc_port);
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desc->destip = rootip;
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if ((error = nfs_getrootfh(desc, rootpath, &nfs_root_node.fhsize,
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nfs_root_node.fh)))
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return (error);
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nfs_root_node.iodesc = desc;
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fh = &nfs_root_node.fh[0];
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buf[0] = 'X';
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cp = &buf[1];
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for (i = 0; i < nfs_root_node.fhsize; i++, cp += 2)
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sprintf(cp, "%02x", fh[i]);
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sprintf(cp, "X");
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setenv("boot.nfsroot.server", inet_ntoa(rootip), 1);
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setenv("boot.nfsroot.path", rootpath, 1);
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setenv("boot.nfsroot.nfshandle", buf, 1);
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sprintf(buf, "%d", nfs_root_node.fhsize);
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setenv("boot.nfsroot.nfshandlelen", buf, 1);
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#ifndef NFS_NOSYMLINK
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/* Fake up attributes for the root dir. */
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fa = &nfs_root_node.fa;
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fa->fa_type = htonl(NFDIR);
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fa->fa_mode = htonl(0755);
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fa->fa_nlink = htonl(2);
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currfd = &nfs_root_node;
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newfd = 0;
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cp = path = strdup(upath);
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if (path == NULL) {
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error = ENOMEM;
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goto out;
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}
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while (*cp) {
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/*
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* Remove extra separators
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*/
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while (*cp == '/')
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cp++;
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if (*cp == '\0')
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break;
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/*
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* Check that current node is a directory.
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*/
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if (currfd->fa.fa_type != htonl(NFDIR)) {
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error = ENOTDIR;
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goto out;
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}
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|
||||
/* allocate file system specific data structure */
|
||||
newfd = malloc(sizeof(*newfd));
|
||||
if (newfd == NULL) {
|
||||
error = ENOMEM;
|
||||
goto out;
|
||||
}
|
||||
newfd->iodesc = currfd->iodesc;
|
||||
newfd->off = 0;
|
||||
|
||||
/*
|
||||
* Get next component of path name.
|
||||
*/
|
||||
{
|
||||
int len = 0;
|
||||
|
||||
ncp = cp;
|
||||
while ((c = *cp) != '\0' && c != '/') {
|
||||
if (++len > NFS_MAXNAMLEN) {
|
||||
error = ENOENT;
|
||||
goto out;
|
||||
}
|
||||
cp++;
|
||||
}
|
||||
*cp = '\0';
|
||||
}
|
||||
|
||||
/* lookup a file handle */
|
||||
error = nfs_lookupfh(currfd, ncp, newfd);
|
||||
*cp = c;
|
||||
if (error)
|
||||
goto out;
|
||||
|
||||
/*
|
||||
* Check for symbolic link
|
||||
*/
|
||||
if (newfd->fa.fa_type == htonl(NFLNK)) {
|
||||
int link_len, len;
|
||||
|
||||
error = nfs_readlink(newfd, linkbuf);
|
||||
if (error)
|
||||
goto out;
|
||||
|
||||
link_len = strlen(linkbuf);
|
||||
len = strlen(cp);
|
||||
|
||||
if (link_len + len > MAXPATHLEN
|
||||
|| ++nlinks > MAXSYMLINKS) {
|
||||
error = ENOENT;
|
||||
goto out;
|
||||
}
|
||||
|
||||
bcopy(cp, &namebuf[link_len], len + 1);
|
||||
bcopy(linkbuf, namebuf, link_len);
|
||||
|
||||
/*
|
||||
* If absolute pathname, restart at root.
|
||||
* If relative pathname, restart at parent directory.
|
||||
*/
|
||||
cp = namebuf;
|
||||
if (*cp == '/') {
|
||||
if (currfd != &nfs_root_node)
|
||||
free(currfd);
|
||||
currfd = &nfs_root_node;
|
||||
}
|
||||
|
||||
free(newfd);
|
||||
newfd = 0;
|
||||
|
||||
continue;
|
||||
}
|
||||
|
||||
if (currfd != &nfs_root_node)
|
||||
free(currfd);
|
||||
currfd = newfd;
|
||||
newfd = 0;
|
||||
}
|
||||
|
||||
error = 0;
|
||||
|
||||
out:
|
||||
free(newfd);
|
||||
free(path);
|
||||
#else
|
||||
/* allocate file system specific data structure */
|
||||
currfd = malloc(sizeof(*currfd));
|
||||
if (currfd != NULL) {
|
||||
currfd->iodesc = desc;
|
||||
currfd->off = 0;
|
||||
|
||||
error = nfs_lookupfh(&nfs_root_node, upath, currfd);
|
||||
} else
|
||||
error = ENOMEM;
|
||||
#endif
|
||||
if (!error) {
|
||||
f->f_fsdata = (void *)currfd;
|
||||
return (0);
|
||||
}
|
||||
|
||||
#ifdef NFS_DEBUG
|
||||
if (debug)
|
||||
printf("nfs_open: %s lookupfh failed: %s\n",
|
||||
path, strerror(error));
|
||||
#endif
|
||||
#ifndef NFS_NOSYMLINK
|
||||
if (currfd != &nfs_root_node)
|
||||
#endif
|
||||
free(currfd);
|
||||
|
||||
return (error);
|
||||
}
|
||||
|
||||
int
|
||||
nfs_close(struct open_file *f)
|
||||
{
|
||||
struct nfs_iodesc *fp = (struct nfs_iodesc *)f->f_fsdata;
|
||||
|
||||
#ifdef NFS_DEBUG
|
||||
if (debug)
|
||||
printf("nfs_close: fp=0x%lx\n", (u_long)fp);
|
||||
#endif
|
||||
|
||||
if (fp != &nfs_root_node && fp)
|
||||
free(fp);
|
||||
f->f_fsdata = (void *)0;
|
||||
|
||||
return (0);
|
||||
}
|
||||
|
||||
/*
|
||||
* read a portion of a file
|
||||
*/
|
||||
int
|
||||
nfs_read(struct open_file *f, void *buf, size_t size, size_t *resid)
|
||||
{
|
||||
struct nfs_iodesc *fp = (struct nfs_iodesc *)f->f_fsdata;
|
||||
ssize_t cc;
|
||||
char *addr = buf;
|
||||
|
||||
#ifdef NFS_DEBUG
|
||||
if (debug)
|
||||
printf("nfs_read: size=%lu off=%d\n", (u_long)size,
|
||||
(int)fp->off);
|
||||
#endif
|
||||
while ((int)size > 0) {
|
||||
twiddle();
|
||||
cc = nfs_readdata(fp, fp->off, (void *)addr, size);
|
||||
/* XXX maybe should retry on certain errors */
|
||||
if (cc == -1) {
|
||||
#ifdef NFS_DEBUG
|
||||
if (debug)
|
||||
printf("nfs_read: read: %s", strerror(errno));
|
||||
#endif
|
||||
return (errno); /* XXX - from nfs_readdata */
|
||||
}
|
||||
if (cc == 0) {
|
||||
#ifdef NFS_DEBUG
|
||||
if (debug)
|
||||
printf("nfs_read: hit EOF unexpectantly");
|
||||
#endif
|
||||
goto ret;
|
||||
}
|
||||
fp->off += cc;
|
||||
addr += cc;
|
||||
size -= cc;
|
||||
}
|
||||
ret:
|
||||
if (resid)
|
||||
*resid = size;
|
||||
|
||||
return (0);
|
||||
}
|
||||
|
||||
/*
|
||||
* Not implemented.
|
||||
*/
|
||||
int
|
||||
nfs_write(struct open_file *f, void *buf, size_t size, size_t *resid)
|
||||
{
|
||||
return (EROFS);
|
||||
}
|
||||
|
||||
off_t
|
||||
nfs_seek(struct open_file *f, off_t offset, int where)
|
||||
{
|
||||
struct nfs_iodesc *d = (struct nfs_iodesc *)f->f_fsdata;
|
||||
uint32_t size = ntohl(d->fa.fa_size.val[1]);
|
||||
|
||||
switch (where) {
|
||||
case SEEK_SET:
|
||||
d->off = offset;
|
||||
break;
|
||||
case SEEK_CUR:
|
||||
d->off += offset;
|
||||
break;
|
||||
case SEEK_END:
|
||||
d->off = size - offset;
|
||||
break;
|
||||
default:
|
||||
errno = EINVAL;
|
||||
return (-1);
|
||||
}
|
||||
|
||||
return (d->off);
|
||||
}
|
||||
|
||||
/* NFNON=0, NFREG=1, NFDIR=2, NFBLK=3, NFCHR=4, NFLNK=5, NFSOCK=6, NFFIFO=7 */
|
||||
int nfs_stat_types[9] = {
|
||||
0, S_IFREG, S_IFDIR, S_IFBLK, S_IFCHR, S_IFLNK, S_IFSOCK, S_IFIFO, 0 };
|
||||
|
||||
int
|
||||
nfs_stat(struct open_file *f, struct stat *sb)
|
||||
{
|
||||
struct nfs_iodesc *fp = (struct nfs_iodesc *)f->f_fsdata;
|
||||
uint32_t ftype, mode;
|
||||
|
||||
ftype = ntohl(fp->fa.fa_type);
|
||||
mode = ntohl(fp->fa.fa_mode);
|
||||
mode |= nfs_stat_types[ftype & 7];
|
||||
|
||||
sb->st_mode = mode;
|
||||
sb->st_nlink = ntohl(fp->fa.fa_nlink);
|
||||
sb->st_uid = ntohl(fp->fa.fa_uid);
|
||||
sb->st_gid = ntohl(fp->fa.fa_gid);
|
||||
sb->st_size = ntohl(fp->fa.fa_size.val[1]);
|
||||
|
||||
return (0);
|
||||
}
|
||||
|
||||
static int
|
||||
nfs_readdir(struct open_file *f, struct dirent *d)
|
||||
{
|
||||
struct nfs_iodesc *fp = (struct nfs_iodesc *)f->f_fsdata;
|
||||
struct nfsv3_readdir_repl *repl;
|
||||
struct nfsv3_readdir_entry *rent;
|
||||
static char *buf;
|
||||
static uint32_t cookie0 = 0;
|
||||
static uint32_t cookie1 = 0;
|
||||
size_t cc;
|
||||
static uint32_t cookieverf0 = 0;
|
||||
static uint32_t cookieverf1 = 0;
|
||||
int pos;
|
||||
|
||||
struct args {
|
||||
uint32_t fhsize;
|
||||
uint32_t fhpluscookie[5 + NFS_V3MAXFHSIZE];
|
||||
} *args;
|
||||
struct {
|
||||
uint32_t h[RPC_HEADER_WORDS];
|
||||
struct args d;
|
||||
} sdata;
|
||||
static struct {
|
||||
uint32_t h[RPC_HEADER_WORDS];
|
||||
u_char d[NFS_READDIRSIZE];
|
||||
} rdata;
|
||||
|
||||
if (cookie0 == 0 && cookie1 == 0) {
|
||||
refill:
|
||||
args = &sdata.d;
|
||||
bzero(args, sizeof(*args));
|
||||
|
||||
args->fhsize = htonl(fp->fhsize);
|
||||
bcopy(fp->fh, args->fhpluscookie, fp->fhsize);
|
||||
pos = roundup(fp->fhsize, sizeof(uint32_t)) / sizeof(uint32_t);
|
||||
args->fhpluscookie[pos++] = cookie0;
|
||||
args->fhpluscookie[pos++] = cookie1;
|
||||
args->fhpluscookie[pos++] = cookieverf0;
|
||||
args->fhpluscookie[pos++] = cookieverf1;
|
||||
args->fhpluscookie[pos] = htonl(NFS_READDIRSIZE);
|
||||
|
||||
cc = rpc_call(fp->iodesc, NFS_PROG, NFS_VER3, NFSPROCV3_READDIR,
|
||||
args, 6 * sizeof(uint32_t) +
|
||||
roundup(fp->fhsize, sizeof(uint32_t)),
|
||||
rdata.d, sizeof(rdata.d));
|
||||
buf = rdata.d;
|
||||
repl = (struct nfsv3_readdir_repl *)buf;
|
||||
if (repl->errno != 0)
|
||||
return (ntohl(repl->errno));
|
||||
cookieverf0 = repl->cookiev0;
|
||||
cookieverf1 = repl->cookiev1;
|
||||
buf += sizeof (struct nfsv3_readdir_repl);
|
||||
}
|
||||
rent = (struct nfsv3_readdir_entry *)buf;
|
||||
|
||||
if (rent->follows == 0) {
|
||||
/* fid0 is actually eof */
|
||||
if (rent->fid0 != 0) {
|
||||
cookie0 = 0;
|
||||
cookie1 = 0;
|
||||
cookieverf0 = 0;
|
||||
cookieverf1 = 0;
|
||||
return (ENOENT);
|
||||
}
|
||||
goto refill;
|
||||
}
|
||||
|
||||
d->d_namlen = ntohl(rent->len);
|
||||
bcopy(rent->nameplus, d->d_name, d->d_namlen);
|
||||
d->d_name[d->d_namlen] = '\0';
|
||||
|
||||
pos = roundup(d->d_namlen, sizeof(uint32_t)) / sizeof(uint32_t);
|
||||
cookie0 = rent->nameplus[pos++];
|
||||
cookie1 = rent->nameplus[pos++];
|
||||
buf = (u_char *)&rent->nameplus[pos];
|
||||
return (0);
|
||||
}
|
||||
#endif /* OLD_NFSV2 */
|
||||
|
||||
Loading…
Reference in New Issue
Block a user