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Subject[PATCH net-next 03/17] rxrpc: List the held token types in the key description in /proc/keys
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When viewing an rxrpc-type key through /proc/keys, display a list of held
token types.

Signed-off-by: David Howells <dhowells@redhat.com>
---

net/rxrpc/key.c | 29 ++++++++++++++++++++++++++++-
1 file changed, 28 insertions(+), 1 deletion(-)

diff --git a/net/rxrpc/key.c b/net/rxrpc/key.c
index fb4d2a2fca02..197b4cf46b64 100644
--- a/net/rxrpc/key.c
+++ b/net/rxrpc/key.c
@@ -31,6 +31,7 @@ static void rxrpc_free_preparse_s(struct key_preparsed_payload *);
static void rxrpc_destroy(struct key *);
static void rxrpc_destroy_s(struct key *);
static void rxrpc_describe(const struct key *, struct seq_file *);
+static void rxrpc_describe_s(const struct key *, struct seq_file *);
static long rxrpc_read(const struct key *, char *, size_t);

/*
@@ -61,7 +62,7 @@ struct key_type key_type_rxrpc_s = {
.free_preparse = rxrpc_free_preparse_s,
.instantiate = generic_key_instantiate,
.destroy = rxrpc_destroy_s,
- .describe = rxrpc_describe,
+ .describe = rxrpc_describe_s,
};

/*
@@ -494,6 +495,32 @@ static void rxrpc_destroy_s(struct key *key)
* describe the rxrpc key
*/
static void rxrpc_describe(const struct key *key, struct seq_file *m)
+{
+ const struct rxrpc_key_token *token;
+ const char *sep = ": ";
+
+ seq_puts(m, key->description);
+
+ for (token = key->payload.data[0]; token; token = token->next) {
+ seq_puts(m, sep);
+
+ switch (token->security_index) {
+ case RXRPC_SECURITY_RXKAD:
+ seq_puts(m, "ka");
+ break;
+ default: /* we have a ticket we can't encode */
+ seq_printf(m, "%u", token->security_index);
+ break;
+ }
+
+ sep = " ";
+ }
+}
+
+/*
+ * describe the rxrpc server key
+ */
+static void rxrpc_describe_s(const struct key *key, struct seq_file *m)
{
seq_puts(m, key->description);
}

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