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commando: runes infrastructure.

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We support the old commando.py plugin, which stores a random secret,
as well as a more modern approach which uses makesecret.

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
This commit is contained in:
Rusty Russell
2022-07-16 22:48:27 +09:30
parent b49703e279
commit 0d94530f13
1 changed files with 37 additions and 0 deletions
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37
plugins/commando.c
View File

@@ -1,6 +1,7 @@
#include "config.h"
#include <ccan/array_size/array_size.h>
#include <ccan/json_out/json_out.h>
#include <ccan/rune/rune.h>
#include <ccan/tal/str/str.h>
#include <common/json_param.h>
#include <common/json_stream.h>
@@ -36,6 +37,8 @@ struct commando {
static struct plugin *plugin;
static struct commando **outgoing_commands;
static struct commando **incoming_commands;
static u64 *rune_counter;
static struct rune *master_rune;
/* NULL peer: don't care about peer. NULL id: don't care about id */
static struct commando *find_commando(struct commando **arr,
@@ -260,6 +263,8 @@ static void handle_incmd(struct node_id *peer,
{
struct commando *incmd;
/* FIXME: don't do *anything* unless they've set up a rune. */
incmd = find_commando(incoming_commands, peer, NULL);
/* Don't let them buffer multiple commands: discard old. */
if (incmd && incmd->id != idnum)
@@ -520,18 +525,50 @@ static void memleak_mark_globals(struct plugin *p, struct htable *memtable)
{
memleak_remove_region(memtable, outgoing_commands, tal_bytelen(outgoing_commands));
memleak_remove_region(memtable, incoming_commands, tal_bytelen(incoming_commands));
if (rune_counter)
memleak_remove_region(memtable, rune_counter, sizeof(*rune_counter));
}
#endif
static const char *init(struct plugin *p,
const char *buf UNUSED, const jsmntok_t *config UNUSED)
{
struct secret rune_secret;
outgoing_commands = tal_arr(p, struct commando *, 0);
incoming_commands = tal_arr(p, struct commando *, 0);
plugin = p;
#if DEVELOPER
plugin_set_memleak_handler(p, memleak_mark_globals);
#endif
rune_counter = tal(p, u64);
if (!rpc_scan_datastore_str(plugin, "commando/rune_counter",
JSON_SCAN(json_to_u64, rune_counter)))
rune_counter = tal_free(rune_counter);
/* Old python commando used to store secret */
if (!rpc_scan_datastore_hex(plugin, "commando/secret",
JSON_SCAN(json_to_secret, &rune_secret))) {
rpc_scan(plugin, "makesecret",
/* $ i commando
* 99 0x63 0143 0b1100011 'c'
* 111 0x6F 0157 0b1101111 'o'
* 109 0x6D 0155 0b1101101 'm'
* 109 0x6D 0155 0b1101101 'm'
* 97 0x61 0141 0b1100001 'a'
* 110 0x6E 0156 0b1101110 'n'
* 100 0x64 0144 0b1100100 'd'
* 111 0x6F 0157 0b1101111 'o'
*/
take(json_out_obj(NULL, "hex", "636F6D6D616E646F")),
"{secret:%}",
JSON_SCAN(json_to_secret, &rune_secret));
}
master_rune = rune_new(plugin, rune_secret.data, ARRAY_SIZE(rune_secret.data),
NULL);
return NULL;
}