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nfsd: add more information to client info file

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

Signed-off-by: J. Bruce Fields <bfields@redhat.com>
This commit is contained in:
J. Bruce Fields 2019-06-19 12:39:46 -04:00
parent ea053e164c
commit 169319f13c
1 changed files with 12 additions and 0 deletions
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12
fs/nfsd/nfs4state.c
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@ -42,6 +42,7 @@
#include <linux/sunrpc/svcauth_gss.h> #include <linux/sunrpc/svcauth_gss.h>
#include <linux/sunrpc/addr.h> #include <linux/sunrpc/addr.h>
#include <linux/jhash.h> #include <linux/jhash.h>
#include <linux/string_helpers.h>
#include "xdr4.h" #include "xdr4.h"
#include "xdr4cb.h" #include "xdr4cb.h"
#include "vfs.h" #include "vfs.h"
@ -2214,6 +2215,13 @@ find_stateid_by_type(struct nfs4_client *cl, stateid_t *t, char typemask)
return s; return s;
} }
static void seq_quote_mem(struct seq_file *m, char *data, int len)
{
seq_printf(m, "\"");
seq_escape_mem_ascii(m, data, len);
seq_printf(m, "\"");
}
static int client_info_show(struct seq_file *m, void *v) static int client_info_show(struct seq_file *m, void *v)
{ {
struct inode *inode = m->private; struct inode *inode = m->private;
@ -2227,6 +2235,10 @@ static int client_info_show(struct seq_file *m, void *v)
clp = container_of(nc, struct nfs4_client, cl_nfsdfs); clp = container_of(nc, struct nfs4_client, cl_nfsdfs);
memcpy(&clid, &clp->cl_clientid, sizeof(clid)); memcpy(&clid, &clp->cl_clientid, sizeof(clid));
seq_printf(m, "clientid: 0x%llx\n", clid); seq_printf(m, "clientid: 0x%llx\n", clid);
seq_printf(m, "address: \"%pISpc\"\n", (struct sockaddr *)&clp->cl_addr);
seq_printf(m, "name: ");
seq_quote_mem(m, clp->cl_name.data, clp->cl_name.len);
seq_printf(m, "\nminor version: %d\n", clp->cl_minorversion);
drop_client(clp); drop_client(clp);
return 0; return 0;