diff options
| author |   tedu <tedu@openbsd.org> | 2013-03-28 02:17:16 +0000 |
|---|---|---|
| committer | tedu <tedu@openbsd.org> | 2013-03-28 02:17:16 +0000 |
| commit | 50c77a8b30b14d7b7d67cf7a910560973c10d651 (patch) | |
| tree | c41dd2d9cc55e139cab370433af59d144a7d346a | |
| parent | Handle the pathconf _PC_PATH_MAX, _PC_PIPE_BUF, _PC_ASYNC_IO, (diff) | |
| download | wireguard-openbsd-50c77a8b30b14d7b7d67cf7a910560973c10d651.tar.xz wireguard-openbsd-50c77a8b30b14d7b7d67cf7a910560973c10d651.zip | |
a better try at pathconf for nfs. there may be lies, but they are better
lies than EINVAL, until we can uncover the truth.
| -rw-r--r-- | sys/nfs/nfs_vnops.c | 54 |
1 files changed, 47 insertions, 7 deletions
diff --git a/sys/nfs/nfs_vnops.c b/sys/nfs/nfs_vnops.c index 5e53298ab64..59a2537c3ae 100644 --- a/sys/nfs/nfs_vnops.c +++ b/sys/nfs/nfs_vnops.c @@ -1,4 +1,4 @@ -/* $OpenBSD: nfs_vnops.c,v 1.141 2013/03/27 01:56:50 tedu Exp $ */ +/* $OpenBSD: nfs_vnops.c,v 1.142 2013/03/28 02:17:16 tedu Exp $ */ /* $NetBSD: nfs_vnops.c,v 1.62.4.1 1996/07/08 20:26:52 jtc Exp $ */ /* @@ -61,6 +61,7 @@ #include <sys/hash.h> #include <sys/queue.h> #include <sys/specdev.h> +#include <sys/unistd.h> #include <uvm/uvm_extern.h> @@ -2938,19 +2939,58 @@ loop: /* * Return POSIX pathconf information applicable to nfs. - * - * The NFS V2 protocol doesn't support this, so just return EINVAL - * for V2. */ /* ARGSUSED */ int nfs_pathconf(void *v) { -#if 0 struct vop_pathconf_args *ap = v; -#endif + struct nfsmount *nmp = VFSTONFS(ap->a_vp->v_mount); + int error = 0; - return (EINVAL); + switch (ap->a_name) { + case _PC_LINK_MAX: + *ap->a_retval = LINK_MAX; + break; + case _PC_NAME_MAX: + *ap->a_retval = NAME_MAX; + break; + case _PC_CHOWN_RESTRICTED: + *ap->a_retval = 1; + break; + case _PC_NO_TRUNC: + *ap->a_retval = 1; + break; + case _PC_ALLOC_SIZE_MIN: + *ap->a_retval = NFS_FABLKSIZE; + break; + case _PC_FILESIZEBITS: + *ap->a_retval = 64; + break; + case _PC_REC_INCR_XFER_SIZE: + *ap->a_retval = min(nmp->nm_rsize, nmp->nm_wsize); + break; + case _PC_REC_MAX_XFER_SIZE: + *ap->a_retval = -1; /* means ``unlimited'' */ + break; + case _PC_REC_MIN_XFER_SIZE: + *ap->a_retval = min(nmp->nm_rsize, nmp->nm_wsize); + break; + case _PC_REC_XFER_ALIGN: + *ap->a_retval = PAGE_SIZE; + break; + case _PC_SYMLINK_MAX: + *ap->a_retval = MAXPATHLEN; + break; + case _PC_2_SYMLINKS: + *ap->a_retval = 1; + break; + default: + error = EINVAL; + break; + } + + return (error); } /* |