Corosync limit to send/receive message is 1 megabyte. Patch ensures this
limit is never overrun.
Signed-off-by: Jan Friesse <jfriesse@xxxxxxxxxx>
---
exec/main.c | 15 +++++++++++++++
1 files changed, 15 insertions(+), 0 deletions(-)
diff --git a/exec/main.c b/exec/main.c
index cd972b5..3068ac9 100644
--- a/exec/main.c
+++ b/exec/main.c
@@ -714,10 +714,25 @@ int main_mcast (
const struct qb_ipc_request_header *req = iovec->iov_base;
int32_t service;
int32_t fn_id;
+ size_t msg_len;
+ unsigned int i;
service = req->id >> 16;
fn_id = req->id & 0xffff;
+ msg_len = 0;
+
+ for (msg_len = 0, i = 0; i < iov_len; msg_len += iovec[i].iov_len, i++)
+ ;
+
+ if (msg_len > MESSAGE_SIZE_MAX) {
+ log_printf(LOGSYS_LEVEL_ERROR,
+ "IPC client is trying to send message larger (%zu bytes) then allowed maximum %u bytes",
+ msg_len, MESSAGE_SIZE_MAX);
+
+ return (-1);
+ }
+
if (corosync_service[service]) {
icmap_fast_inc(service_stats_tx[service][fn_id]);
}
--
1.7.1
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