knfsd: nfsd: display export secinfo information

Add secinfo information to the display in proc/net/sunrpc/nfsd.export/content.

Signed-off-by: "J. Bruce Fields" <bfields@citi.umich.edu>
Signed-off-by: Neil Brown <neilb@suse.de>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

1 files changed, 29 insertions, 0 deletions

diff --git a/fs/nfsd/export.c b/fs/nfsd/export.c
index 06d5cd4a52c4..c7bbf460b009 100644
--- a/fs/nfsd/export.c
+++ b/fs/nfsd/export.c
@@ -641,6 +641,7 @@ static int svc_export_parse(struct cache_detail *cd, char *mesg, int mlen)
 
 static void exp_flags(struct seq_file *m, int flag, int fsid,
                 uid_t anonu, uid_t anong, struct nfsd4_fs_locations *fslocs);
+static void show_secinfo(struct seq_file *m, struct svc_export *exp);
 
 static int svc_export_show(struct seq_file *m,
                            struct cache_detail *cd,
@@ -670,6 +671,7 @@ static int svc_export_show(struct seq_file *m,
                                 seq_printf(m, "%02x", exp->ex_uuid[i]);
                         }
                 }
+                show_secinfo(m, exp);
         }
         seq_puts(m, ")\n");
         return 0;
@@ -1467,6 +1469,33 @@ static void show_expflags(struct seq_file *m, int flags, int mask)
         }
 }
 
+static void show_secinfo_flags(struct seq_file *m, int flags)
+{
+        seq_printf(m, ",");
+        show_expflags(m, flags, NFSEXP_SECINFO_FLAGS);
+}
+
+static void show_secinfo(struct seq_file *m, struct svc_export *exp)
+{
+        struct exp_flavor_info *f;
+        struct exp_flavor_info *end = exp->ex_flavors + exp->ex_nflavors;
+        int lastflags = 0, first = 0;
+
+        if (exp->ex_nflavors == 0)
+                return;
+        for (f = exp->ex_flavors; f < end; f++) {
+                if (first || f->flags != lastflags) {
+                        if (!first)
+                                show_secinfo_flags(m, lastflags);
+                        seq_printf(m, ",sec=%d", f->pseudoflavor);
+                        lastflags = f->flags;
+                } else {
+                        seq_printf(m, ":%d", f->pseudoflavor);
+                }
+        }
+        show_secinfo_flags(m, lastflags);
+}
+
 static void exp_flags(struct seq_file *m, int flag, int fsid,
                 uid_t anonu, uid_t anong, struct nfsd4_fs_locations *fsloc)
 {