[PATCH 014 of 20] knfsd: nfsd: display export secinfo information

[NeilBrown <neilb@suse.de>]

From: J. Bruce Fields <bfields@citi.umich.edu>

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>

### Diffstat output
 ./fs/nfsd/export.c |   29 +++++++++++++++++++++++++++++
 1 file changed, 29 insertions(+)

diff .prev/fs/nfsd/export.c ./fs/nfsd/export.c
--- .prev/fs/nfsd/export.c	2007-07-10 11:46:05.000000000 +1000
+++ ./fs/nfsd/export.c	2007-07-10 11:48:23.000000000 +1000
@@ -641,6 +641,7 @@ static int svc_export_parse(struct cache
 
 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_fi
 				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_fil
 	}
 }
 
+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)
 {

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