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rxrpc: List the held token types in the key description in /proc/keys 

When viewing an rxrpc-type key through /proc/keys, display a list of held
token types.

Signed-off-by: David Howells <dhowells@redhat.com>
This commit is contained in:
David Howells 2020-09-08 22:30:52 +01:00
parent 8a5dc32115
commit 0727d3ec38
1 changed files with 28 additions and 1 deletions
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29
net/rxrpc/key.c
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@ -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);
}