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[10/10] nfsd: add more information to client info file

Message ID 1556201060-7947-11-git-send-email-bfields@redhat.com (mailing list archive)
State New, archived
Headers show
Series exposing knfsd opens to userspace | expand

Commit Message

Bruce Fields April 25, 2019, 2:04 p.m. UTC 
From: "J. Bruce Fields" <bfields@redhat.com>

Add ip address, full client-provided identifier, and minor version.
There's much more that could possibly be useful but this is a start.

As with open owners, client identifiers are opaque binary data, but some
client happen to include some useful information in ascii.
---
 fs/nfsd/nfs4state.c | 5 +++++
 1 file changed, 5 insertions(+)
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Patch

diff --git a/fs/nfsd/nfs4state.c b/fs/nfsd/nfs4state.c
index f53621a65e60..39e1956b1bd2 100644
--- a/fs/nfsd/nfs4state.c
+++ b/fs/nfsd/nfs4state.c
@@ -2208,6 +2208,11 @@  static int client_info_show(struct seq_file *m, void *v)
 	clp = container_of(nc, struct nfs4_client, cl_nfsdfs);
 	memcpy(&clid, &clp->cl_clientid, sizeof(clid));
 	seq_printf(m, "clientid: %llx\n", clid);
+	seq_printf(m, "address: %pISpc\n", (struct sockaddr *)&clp->cl_addr);
+	seq_printf(m, "name: ");
+	seq_escape_mem(m, clp->cl_name.data, clp->cl_name.len,
+			ESCAPE_NP|ESCAPE_HEX|ESCAPE_NOHIGH, NULL);
+	seq_printf(m, "\nminor version: %d\n", clp->cl_minorversion);
 	drop_client(clp);
 
 	return 0;