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commando: make blacklist effective.

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Actually check them when we're going to use a rune.
This commit is contained in:
Rusty Russell 2023-03-31 11:54:34 +10:30
parent fb865291b6
commit a4ed3ae72e
1 changed files with 21 additions and 0 deletions
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21
plugins/commando.c
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@ -76,6 +76,24 @@ static bool usage_eq_id(const struct usage *u, u64 id)
HTABLE_DEFINE_TYPE(struct usage, usage_id, id_hash, usage_eq_id, usage_table);
static struct usage_table *usage_table;
static bool is_rune_blacklisted(const struct rune *rune)
{
u64 uid;
/* Every rune *we produce* has a unique_id which is a number, but
* it's legal to have a rune without one. */
if (rune->unique_id == NULL) {
return false;
}
uid = atol(rune->unique_id);
for (size_t i = 0; i < tal_count(blacklist); i++) {
if (blacklist[i].start <= uid && blacklist[i].end >= uid) {
return true;
}
}
return false;
}
/* Every minute we forget entries. */
static void flush_usage_table(void *unused)
{
@ -363,6 +381,9 @@ static const char *check_rune(const tal_t *ctx,
if (!rune)
return "Invalid rune";
if (is_rune_blacklisted(rune))
return "Blacklisted rune";
cinfo.peer = peer;
cinfo.buf = buf;
cinfo.method = method;