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kick client after N bad shares

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Jethro Grassie 2019-07-14 12:33:02 -04:00
parent 2e00515cb4
commit 012edf01c1
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GPG key ID: DE8ED755616565BB
1 changed files with 26 additions and 7 deletions
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33
src/pool.c
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@ -88,6 +88,7 @@ developers.
#define BLOCK_TIME 120 #define BLOCK_TIME 120
#define HR_BLOCK_COUNT 5 #define HR_BLOCK_COUNT 5
#define TEMLATE_HEIGHT_VARIANCE 5 #define TEMLATE_HEIGHT_VARIANCE 5
#define MAX_BAD_SHARES 5
#define uint128_t unsigned __int128 #define uint128_t unsigned __int128
@ -176,6 +177,7 @@ typedef struct client_t
time_t connected_since; time_t connected_since;
bool is_proxy; bool is_proxy;
uint32_t mode; uint32_t mode;
uint8_t bad_shares;
} client_t; } client_t;
typedef struct pool_clients_t typedef struct pool_clients_t
@ -2224,7 +2226,7 @@ client_on_submit(json_object *message, client_t *client)
stratum_get_error_body(body, client->json_id, "Invalid share"); stratum_get_error_body(body, client->json_id, "Invalid share");
evbuffer_add(output, body, strlen(body)); evbuffer_add(output, body, strlen(body));
log_debug("Invalid share"); log_debug("Invalid share");
/* TODO: record and ban if too many */ client->bad_shares++;
free(block); free(block);
free(hashing_blob); free(hashing_blob);
return; return;
@ -2279,8 +2281,9 @@ client_on_submit(json_object *message, client_t *client)
can_store = false; can_store = false;
char body[ERROR_BODY_MAX]; char body[ERROR_BODY_MAX];
stratum_get_error_body(body, client->json_id, "Low difficulty share"); stratum_get_error_body(body, client->json_id, "Low difficulty share");
log_debug("Low difficulty (%lu) share", BN_get_word(jd));
evbuffer_add(output, body, strlen(body)); evbuffer_add(output, body, strlen(body));
log_debug("Low difficulty (%lu) share", BN_get_word(jd));
client->bad_shares++;
} }
BN_free(hd); BN_free(hd);
@ -2291,6 +2294,8 @@ client_on_submit(json_object *message, client_t *client)
if (can_store) if (can_store)
{ {
if (client->bad_shares)
client->bad_shares--;
share_t share; share_t share;
share.height = bt->height; share.height = bt->height;
share.difficulty = job->target; share.difficulty = job->target;
@ -2309,7 +2314,9 @@ client_on_submit(json_object *message, client_t *client)
static void static void
client_on_read(struct bufferevent *bev, void *ctx) client_on_read(struct bufferevent *bev, void *ctx)
{ {
const char unknown_method[] = "Unknown method"; const char *unknown_method = "Removing client. Unknown method called.";
const char *too_bad = "Removing client. Too many bad shares.";
const char *too_long = "Removing client. Message too long.";
struct evbuffer *input, *output; struct evbuffer *input, *output;
char *line; char *line;
size_t n; size_t n;
@ -2325,9 +2332,21 @@ client_on_read(struct bufferevent *bev, void *ctx)
size_t len = evbuffer_get_length(input); size_t len = evbuffer_get_length(input);
if (len > MAX_LINE) if (len > MAX_LINE)
{ {
const char *too_long = "Message too long\n"; char body[ERROR_BODY_MAX];
evbuffer_add(output, too_long, strlen(too_long)); stratum_get_error_body(body, client->json_id, too_long);
log_info("Removing client. Message too long."); evbuffer_add(output, body, strlen(body));
log_info(too_long);
evbuffer_drain(input, len);
client_clear(bev);
return;
}
if (client->bad_shares > MAX_BAD_SHARES)
{
char body[ERROR_BODY_MAX];
stratum_get_error_body(body, client->json_id, too_bad);
evbuffer_add(output, body, strlen(body));
log_info(too_bad);
evbuffer_drain(input, len); evbuffer_drain(input, len);
client_clear(bev); client_clear(bev);
return; return;
@ -2382,7 +2401,7 @@ client_on_read(struct bufferevent *bev, void *ctx)
char body[ERROR_BODY_MAX]; char body[ERROR_BODY_MAX];
stratum_get_error_body(body, client->json_id, unknown_method); stratum_get_error_body(body, client->json_id, unknown_method);
evbuffer_add(output, body, strlen(body)); evbuffer_add(output, body, strlen(body));
log_info("Removing client. Unknown method called."); log_info(unknown_method);
evbuffer_drain(input, len); evbuffer_drain(input, len);
client_clear(bev); client_clear(bev);
return; return;