Author: tsoome Date: Thu Mar 30 19:32:25 2017 New Revision: 316287 URL: https://svnweb.freebsd.org/changeset/base/316287
Log: Remove OLD_NFSV2 from loader and libstand We have parallel NFSv2 and NFSv3 reader implementations, only configurable at build time, defaulting to v3. Remove v2. Reviewed by: allanjude Approved by: allanjude (mentor) Differential Revision: https://reviews.freebsd.org/D10206 Modified: head/lib/libstand/nfs.c head/lib/libstand/nfsv2.h head/sys/boot/i386/libi386/pxe.c Modified: head/lib/libstand/nfs.c ============================================================================== --- head/lib/libstand/nfs.c Thu Mar 30 18:21:36 2017 (r316286) +++ head/lib/libstand/nfs.c Thu Mar 30 19:32:25 2017 (r316287) @@ -54,73 +54,6 @@ __FBSDID("$FreeBSD$"); #define NFSREAD_MIN_SIZE 1024 #define NFSREAD_MAX_SIZE 4096 -/* Define our own NFS attributes without NQNFS stuff. */ -#ifdef OLD_NFSV2 -struct nfsv2_fattrs { - n_long fa_type; - n_long fa_mode; - n_long fa_nlink; - n_long fa_uid; - n_long fa_gid; - n_long fa_size; - n_long fa_blocksize; - n_long fa_rdev; - n_long fa_blocks; - n_long fa_fsid; - n_long fa_fileid; - struct nfsv2_time fa_atime; - struct nfsv2_time fa_mtime; - struct nfsv2_time fa_ctime; -}; - -struct nfs_read_args { - u_char fh[NFS_FHSIZE]; - n_long off; - n_long len; - n_long xxx; /* XXX what's this for? */ -}; - -/* Data part of nfs rpc reply (also the largest thing we receive) */ -struct nfs_read_repl { - n_long errno; - struct nfsv2_fattrs fa; - n_long count; - u_char data[NFSREAD_MAX_SIZE]; -}; - -#ifndef NFS_NOSYMLINK -struct nfs_readlnk_repl { - n_long errno; - n_long len; - char path[NFS_MAXPATHLEN]; -}; -#endif - -struct nfs_readdir_args { - u_char fh[NFS_FHSIZE]; - n_long cookie; - n_long count; -}; - -struct nfs_readdir_data { - n_long fileid; - n_long len; - char name[0]; -}; - -struct nfs_readdir_off { - n_long cookie; - n_long follows; -}; - -struct nfs_iodesc { - struct iodesc *iodesc; - off_t off; - u_char fh[NFS_FHSIZE]; - struct nfsv2_fattrs fa; /* all in network order */ -}; -#else /* !OLD_NFSV2 */ - /* NFSv3 definitions */ #define NFS_V3MAXFHSIZE 64 #define NFS_VER3 3 @@ -185,7 +118,6 @@ struct nfs_iodesc { struct nfsv3_fattrs fa; /* all in network order */ uint64_t cookie; }; -#endif /* OLD_NFSV2 */ /* * XXX interactions with tftp? See nfswrapper.c for a confusing @@ -246,612 +178,6 @@ set_nfs_read_size(void) setenv("nfs.read_size", buf, 1); } -#ifdef OLD_NFSV2 -/* - * Fetch the root file handle (call mount daemon) - * Return zero or error number. - */ -int -nfs_getrootfh(struct iodesc *d, char *path, u_char *fhp) -{ - int len; - struct args { - n_long len; - char path[FNAME_SIZE]; - } *args; - struct repl { - n_long errno; - u_char fh[NFS_FHSIZE]; - } *repl; - struct { - n_long h[RPC_HEADER_WORDS]; - struct args d; - } sdata; - struct { - n_long h[RPC_HEADER_WORDS]; - struct repl d; - } rdata; - size_t cc; - -#ifdef NFS_DEBUG - if (debug) - printf("nfs_getrootfh: %s\n", path); -#endif - - args = &sdata.d; - repl = &rdata.d; - - bzero(args, sizeof(*args)); - len = strlen(path); - if (len > sizeof(args->path)) - len = sizeof(args->path); - args->len = htonl(len); - bcopy(path, args->path, len); - len = 4 + roundup(len, 4); - - cc = rpc_call(d, RPCPROG_MNT, RPCMNT_VER1, RPCMNT_MOUNT, - args, len, repl, sizeof(*repl)); - if (cc == -1) { - /* errno was set by rpc_call */ - return (errno); - } - if (cc < 4) - return (EBADRPC); - if (repl->errno) - return (ntohl(repl->errno)); - bcopy(repl->fh, fhp, sizeof(repl->fh)); - - set_nfs_read_size(); - return (0); -} - -/* - * Lookup a file. Store handle and attributes. - * Return zero or error number. - */ -int -nfs_lookupfh(struct nfs_iodesc *d, const char *name, struct nfs_iodesc *newfd) -{ - int len, rlen; - struct args { - u_char fh[NFS_FHSIZE]; - n_long len; - char name[FNAME_SIZE]; - } *args; - struct repl { - n_long errno; - u_char fh[NFS_FHSIZE]; - struct nfsv2_fattrs fa; - } *repl; - struct { - n_long h[RPC_HEADER_WORDS]; - struct args d; - } sdata; - struct { - n_long h[RPC_HEADER_WORDS]; - struct repl d; - } rdata; - ssize_t cc; - -#ifdef NFS_DEBUG - if (debug) - printf("lookupfh: called\n"); -#endif - - args = &sdata.d; - repl = &rdata.d; - - bzero(args, sizeof(*args)); - bcopy(d->fh, args->fh, sizeof(args->fh)); - len = strlen(name); - if (len > sizeof(args->name)) - len = sizeof(args->name); - bcopy(name, args->name, len); - args->len = htonl(len); - len = 4 + roundup(len, 4); - len += NFS_FHSIZE; - - rlen = sizeof(*repl); - - cc = rpc_call(d->iodesc, NFS_PROG, NFS_VER2, NFSPROC_LOOKUP, - args, len, repl, rlen); - if (cc == -1) - return (errno); /* XXX - from rpc_call */ - if (cc < 4) - return (EIO); - if (repl->errno) { - /* saerrno.h now matches NFS error numbers. */ - return (ntohl(repl->errno)); - } - bcopy( repl->fh, &newfd->fh, sizeof(newfd->fh)); - bcopy(&repl->fa, &newfd->fa, sizeof(newfd->fa)); - return (0); -} - -#ifndef NFS_NOSYMLINK -/* - * Get the destination of a symbolic link. - */ -int -nfs_readlink(struct nfs_iodesc *d, char *buf) -{ - struct { - n_long h[RPC_HEADER_WORDS]; - u_char fh[NFS_FHSIZE]; - } sdata; - struct { - n_long h[RPC_HEADER_WORDS]; - struct nfs_readlnk_repl d; - } rdata; - ssize_t cc; - -#ifdef NFS_DEBUG - if (debug) - printf("readlink: called\n"); -#endif - - bcopy(d->fh, sdata.fh, NFS_FHSIZE); - cc = rpc_call(d->iodesc, NFS_PROG, NFS_VER2, NFSPROC_READLINK, - sdata.fh, NFS_FHSIZE, - &rdata.d, sizeof(rdata.d)); - if (cc == -1) - return (errno); - - if (cc < 4) - return (EIO); - - if (rdata.d.errno) - return (ntohl(rdata.d.errno)); - - rdata.d.len = ntohl(rdata.d.len); - if (rdata.d.len > NFS_MAXPATHLEN) - return (ENAMETOOLONG); - - bcopy(rdata.d.path, buf, rdata.d.len); - buf[rdata.d.len] = 0; - return (0); -} -#endif - -/* - * Read data from a file. - * Return transfer count or -1 (and set errno) - */ -ssize_t -nfs_readdata(struct nfs_iodesc *d, off_t off, void *addr, size_t len) -{ - struct nfs_read_args *args; - struct nfs_read_repl *repl; - struct { - n_long h[RPC_HEADER_WORDS]; - struct nfs_read_args d; - } sdata; - struct { - n_long h[RPC_HEADER_WORDS]; - struct nfs_read_repl d; - } rdata; - size_t cc; - long x; - int hlen, rlen; - - args = &sdata.d; - repl = &rdata.d; - - bcopy(d->fh, args->fh, NFS_FHSIZE); - args->off = htonl((n_long)off); - if (len > nfs_read_size) - len = nfs_read_size; - args->len = htonl((n_long)len); - args->xxx = htonl((n_long)0); - hlen = offsetof(struct nfs_read_rpl, data[0]); - - cc = rpc_call(d->iodesc, NFS_PROG, NFS_VER2, NFSPROC_READ, - args, sizeof(*args), - repl, sizeof(*repl)); - if (cc == -1) { - /* errno was already set by rpc_call */ - return (-1); - } - if (cc < hlen) { - errno = EBADRPC; - return (-1); - } - if (repl->errno) { - errno = ntohl(repl->errno); - return (-1); - } - rlen = cc - hlen; - x = ntohl(repl->count); - if (rlen < x) { - printf("nfsread: short packet, %d < %ld\n", rlen, x); - errno = EBADRPC; - return(-1); - } - bcopy(repl->data, addr, x); - return (x); -} - -/* - * Open a file. - * return zero or error number - */ -int -nfs_open(const char *upath, struct open_file *f) -{ - struct iodesc *desc; - struct nfs_iodesc *currfd; - char buf[2 * NFS_FHSIZE + 3]; - u_char *fh; - char *cp; - int i; -#ifndef NFS_NOSYMLINK - struct nfs_iodesc *newfd; - struct nfsv2_fattrs *fa; - char *ncp; - int c; - char namebuf[NFS_MAXPATHLEN + 1]; - char linkbuf[NFS_MAXPATHLEN + 1]; - int nlinks = 0; -#endif - int error; - char *path; - - if (netproto != NET_NFS) - return (EINVAL); - -#ifdef NFS_DEBUG - if (debug) - printf("nfs_open: %s (rootpath=%s)\n", upath, rootpath); -#endif - if (!rootpath[0]) { - printf("no rootpath, no nfs\n"); - return (ENXIO); - } - - /* - * This is silly - we should look at dv_type but that value is - * arch dependant and we can't use it here. - */ -#ifndef __i386__ - if (strcmp(f->f_dev->dv_name, "net") != 0) - return(EINVAL); -#else - if (strcmp(f->f_dev->dv_name, "pxe") != 0) - return(EINVAL); -#endif - - if (!(desc = socktodesc(*(int *)(f->f_devdata)))) - return(EINVAL); - - /* Bind to a reserved port. */ - desc->myport = htons(--rpc_port); - desc->destip = rootip; - if ((error = nfs_getrootfh(desc, rootpath, nfs_root_node.fh))) - return (error); - nfs_root_node.fa.fa_type = htonl(NFDIR); - nfs_root_node.fa.fa_mode = htonl(0755); - nfs_root_node.fa.fa_nlink = htonl(2); - nfs_root_node.iodesc = desc; - - fh = &nfs_root_node.fh[0]; - buf[0] = 'X'; - cp = &buf[1]; - for (i = 0; i < NFS_FHSIZE; i++, cp += 2) - sprintf(cp, "%02x", fh[i]); - sprintf(cp, "X"); - setenv("boot.nfsroot.server", inet_ntoa(rootip), 1); - setenv("boot.nfsroot.path", rootpath, 1); - setenv("boot.nfsroot.nfshandle", buf, 1); - - /* Allocate file system specific data structure */ - currfd = malloc(sizeof(*newfd)); - if (currfd == NULL) { - error = ENOMEM; - goto out; - } - -#ifndef NFS_NOSYMLINK - bcopy(&nfs_root_node, currfd, sizeof(*currfd)); - newfd = NULL; - - cp = path = strdup(upath); - if (path == NULL) { - error = ENOMEM; - goto out; - } - while (*cp) { - /* - * Remove extra separators - */ - while (*cp == '/') - cp++; - - if (*cp == '\0') - break; - /* - * Check that current node is a directory. - */ - if (currfd->fa.fa_type != htonl(NFDIR)) { - error = ENOTDIR; - goto out; - } - - /* allocate file system specific data structure */ - newfd = malloc(sizeof(*newfd)); - newfd->iodesc = currfd->iodesc; - - /* - * 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 == '/') - bcopy(&nfs_root_node, currfd, sizeof(*currfd)); - - free(newfd); - newfd = NULL; - - continue; - } - - free(currfd); - currfd = newfd; - newfd = NULL; - } - - error = 0; - -out: - free(newfd); - free(path); -#else - currfd->iodesc = desc; - - error = nfs_lookupfh(&nfs_root_node, upath, currfd); -#endif - if (!error) { - currfd->off = 0; - f->f_fsdata = (void *)currfd; - return (0); - } - -#ifdef NFS_DEBUG - if (debug) - printf("nfs_open: %s lookupfh failed: %s\n", - path, strerror(error)); -#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) - 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(16); - 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; - n_long size = ntohl(d->fa.fa_size); - - 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 */ -int nfs_stat_types[8] = { - 0, S_IFREG, S_IFDIR, S_IFBLK, S_IFCHR, S_IFLNK, 0 }; - -int -nfs_stat(struct open_file *f, struct stat *sb) -{ - struct nfs_iodesc *fp = (struct nfs_iodesc *)f->f_fsdata; - n_long 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); - - return (0); -} - -static int -nfs_readdir(struct open_file *f, struct dirent *d) -{ - struct nfs_iodesc *fp = (struct nfs_iodesc *)f->f_fsdata; - struct nfs_readdir_args *args; - struct nfs_readdir_data *rd; - struct nfs_readdir_off *roff = NULL; - static char *buf; - static struct nfs_iodesc *pfp = NULL; - static n_long cookie = 0; - size_t cc; - n_long eof; - - struct { - n_long h[RPC_HEADER_WORDS]; - struct nfs_readdir_args d; - } sdata; - static struct { - n_long h[RPC_HEADER_WORDS]; - u_char d[NFS_READDIRSIZE]; - } rdata; - - if (fp != pfp || fp->off != cookie) { - pfp = NULL; - refill: - args = &sdata.d; - bzero(args, sizeof(*args)); - - bcopy(fp->fh, args->fh, NFS_FHSIZE); - args->cookie = htonl(fp->off); - args->count = htonl(NFS_READDIRSIZE); - - cc = rpc_call(fp->iodesc, NFS_PROG, NFS_VER2, NFSPROC_READDIR, - args, sizeof(*args), - rdata.d, sizeof(rdata.d)); - buf = rdata.d; - roff = (struct nfs_readdir_off *)buf; - if (ntohl(roff->cookie) != 0) - return EIO; - pfp = fp; - cookie = fp->off; - } - roff = (struct nfs_readdir_off *)buf; - - if (ntohl(roff->follows) == 0) { - eof = ntohl((roff+1)->cookie); - if (eof) { - cookie = 0; - return ENOENT; - } - goto refill; - } - - buf += sizeof(struct nfs_readdir_off); - rd = (struct nfs_readdir_data *)buf; - d->d_namlen = ntohl(rd->len); - bcopy(rd->name, d->d_name, d->d_namlen); - d->d_name[d->d_namlen] = '\0'; - - buf += (sizeof(struct nfs_readdir_data) + roundup(htonl(rd->len),4)); - roff = (struct nfs_readdir_off *)buf; - fp->off = cookie = ntohl(roff->cookie); - return 0; -} -#else /* !OLD_NFSV2 */ /* * Fetch the root file handle (call mount daemon) * Return zero or error number. @@ -1517,4 +843,3 @@ nfs_readdir(struct open_file *f, struct buf = (u_char *)&rent->nameplus[pos]; return (0); } -#endif /* OLD_NFSV2 */ Modified: head/lib/libstand/nfsv2.h ============================================================================== --- head/lib/libstand/nfsv2.h Thu Mar 30 18:21:36 2017 (r316286) +++ head/lib/libstand/nfsv2.h Thu Mar 30 19:32:25 2017 (r316287) @@ -119,46 +119,3 @@ typedef enum { NFCHR=4, NFLNK=5 } nfstype; - -/* Structs for common parts of the rpc's */ -struct nfsv2_time { - n_long nfs_sec; - n_long nfs_usec; -}; - -/* - * File attributes and setable attributes. - */ -struct nfsv2_fattr { - n_long fa_type; - n_long fa_mode; - n_long fa_nlink; - n_long fa_uid; - n_long fa_gid; - n_long fa_size; - n_long fa_blocksize; - n_long fa_rdev; - n_long fa_blocks; - n_long fa_fsid; - n_long fa_fileid; - struct nfsv2_time fa_atime; - struct nfsv2_time fa_mtime; - struct nfsv2_time fa_ctime; -}; - -struct nfsv2_sattr { - n_long sa_mode; - n_long sa_uid; - n_long sa_gid; - n_long sa_size; - struct nfsv2_time sa_atime; - struct nfsv2_time sa_mtime; -}; - -struct nfsv2_statfs { - n_long sf_tsize; - n_long sf_bsize; - n_long sf_blocks; - n_long sf_bfree; - n_long sf_bavail; -}; Modified: head/sys/boot/i386/libi386/pxe.c ============================================================================== --- head/sys/boot/i386/libi386/pxe.c Thu Mar 30 18:21:36 2017 (r316286) +++ head/sys/boot/i386/libi386/pxe.c Thu Mar 30 19:32:25 2017 (r316287) @@ -88,11 +88,7 @@ static int pxe_netif_get(struct iodesc * static int pxe_netif_put(struct iodesc *desc, void *pkt, size_t len); static void pxe_netif_end(struct netif *nif); -#ifdef OLD_NFSV2 -int nfs_getrootfh(struct iodesc*, char*, u_char*); -#else int nfs_getrootfh(struct iodesc*, char*, uint32_t*, u_char*); -#endif extern struct netif_stats pxe_st[]; extern u_int16_t __bangpxeseg; @@ -468,56 +464,6 @@ pxe_perror(int err) * Reach inside the libstand NFS code and dig out an NFS handle * for the root filesystem. */ -#ifdef OLD_NFSV2 -struct nfs_iodesc { - struct iodesc *iodesc; - off_t off; - u_char fh[NFS_FHSIZE]; - /* structure truncated here */ -}; -extern struct nfs_iodesc nfs_root_node; -extern int rpc_port; - -static void -pxe_rpcmountcall() -{ - struct iodesc *d; - int error; - - if (!(d = socktodesc(pxe_sock))) - return; - d->myport = htons(--rpc_port); - d->destip = rootip; - if ((error = nfs_getrootfh(d, rootpath, nfs_root_node.fh)) != 0) - printf("NFS MOUNT RPC error: %d\n", error); - nfs_root_node.iodesc = d; -} - -static void -pxe_setnfshandle(char *rootpath) -{ - int i; - u_char *fh; - char buf[2 * NFS_FHSIZE + 3], *cp; - - /* - * If NFS files were never opened, we need to do mount call - * ourselves. Use nfs_root_node.iodesc as flag indicating - * previous NFS usage. - */ - if (nfs_root_node.iodesc == NULL) - pxe_rpcmountcall(); - - fh = &nfs_root_node.fh[0]; - buf[0] = 'X'; - cp = &buf[1]; - for (i = 0; i < NFS_FHSIZE; i++, cp += 2) - sprintf(cp, "%02x", fh[i]); - sprintf(cp, "X"); - setenv("boot.nfsroot.nfshandle", buf, 1); -} -#else /* !OLD_NFSV2 */ - #define NFS_V3MAXFHSIZE 64 struct nfs_iodesc { @@ -573,7 +519,6 @@ pxe_setnfshandle(char *rootpath) sprintf(buf, "%d", nfs_root_node.fhsize); setenv("boot.nfsroot.nfshandlelen", buf, 1); } -#endif /* OLD_NFSV2 */ void pxenv_call(int func) _______________________________________________ svn-src-all@freebsd.org mailing list https://lists.freebsd.org/mailman/listinfo/svn-src-all To unsubscribe, send any mail to "svn-src-all-unsubscr...@freebsd.org"
