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| author | J. Bruce Fields <bfields@citi.umich.edu> | 2009-12-14 12:53:32 -0500 |
|---|---|---|
| committer | J. Bruce Fields <bfields@citi.umich.edu> | 2009-12-14 18:51:29 -0500 |
| commit | e8e8753f7a32ce4f636771126fc8eba0dc4ad817 (patch) | |
| tree | b7298d70312e7ea267343ebe4ed001aa8f1986c8 /fs/nfsd/nfsctl.c | |
| parent | 9a74af21330c8d46efa977d088a62cc1bfa954e9 (diff) | |
| download | linux-e8e8753f7a32ce4f636771126fc8eba0dc4ad817.tar.gz linux-e8e8753f7a32ce4f636771126fc8eba0dc4ad817.tar.bz2 linux-e8e8753f7a32ce4f636771126fc8eba0dc4ad817.zip | |
nfsd: new interface to advertise export features
Soon we will add the new V4ROOT flag, and allow the INSECURE flag to
vary by pseudoflavor. It would be useful for nfs-utils (for example,
for improved exportfs error reporting) to be able to know when this
happens. Use this new interface for that purpose.
Signed-off-by: J. Bruce Fields <bfields@citi.umich.edu>
Diffstat (limited to 'fs/nfsd/nfsctl.c')
| -rw-r--r-- | fs/nfsd/nfsctl.c | 21 |
1 files changed, 21 insertions, 0 deletions
diff --git a/fs/nfsd/nfsctl.c b/fs/nfsd/nfsctl.c index 0415680d3f58..e7051ac4dc73 100644 --- a/fs/nfsd/nfsctl.c +++ b/fs/nfsd/nfsctl.c @@ -31,6 +31,7 @@ enum { NFSD_Getfd, NFSD_Getfs, NFSD_List, + NFSD_Export_features, NFSD_Fh, NFSD_FO_UnlockIP, NFSD_FO_UnlockFS, @@ -149,6 +150,24 @@ static const struct file_operations exports_operations = { .owner = THIS_MODULE, }; +static int export_features_show(struct seq_file *m, void *v) +{ + seq_printf(m, "0x%x 0x%x\n", NFSEXP_ALLFLAGS, NFSEXP_SECINFO_FLAGS); + return 0; +} + +static int export_features_open(struct inode *inode, struct file *file) +{ + return single_open(file, export_features_show, NULL); +} + +static struct file_operations export_features_operations = { + .open = export_features_open, + .read = seq_read, + .llseek = seq_lseek, + .release = single_release, +}; + extern int nfsd_pool_stats_open(struct inode *inode, struct file *file); extern int nfsd_pool_stats_release(struct inode *inode, struct file *file); @@ -1306,6 +1325,8 @@ static int nfsd_fill_super(struct super_block * sb, void * data, int silent) [NFSD_Getfd] = {".getfd", &transaction_ops, S_IWUSR|S_IRUSR}, [NFSD_Getfs] = {".getfs", &transaction_ops, S_IWUSR|S_IRUSR}, [NFSD_List] = {"exports", &exports_operations, S_IRUGO}, + [NFSD_Export_features] = {"export_features", + &export_features_operations, S_IRUGO}, [NFSD_FO_UnlockIP] = {"unlock_ip", &transaction_ops, S_IWUSR|S_IRUSR}, [NFSD_FO_UnlockFS] = {"unlock_filesystem", |