BUG/MINOR: flt_trace/htx: Only apply the random forwarding on the message body.
In the function trace_http_payload(), when the random forwarding is enabled,
only blocks of type HTX_BLK_DATA must be considered. Because other blocks must
be forwarding in one time.
This patch must be backported to 1.9. But it will have to be adapted. Because
several changes on the HTX in the 2.0 are missing in the 1.9.
diff --git a/src/flt_trace.c b/src/flt_trace.c
index 4eb8d5f..e001d7b 100644
--- a/src/flt_trace.c
+++ b/src/flt_trace.c
@@ -464,8 +464,32 @@
struct trace_config *conf = FLT_CONF(filter);
int ret = len;
- if (ret && conf->rand_forwarding)
+ if (ret && conf->rand_forwarding) {
+ struct htx *htx = htxbuf(&msg->chn->buf);
+ struct htx_blk *blk;
+ uint32_t sz, data = 0;
+
+ for (blk = htx_get_first_blk(htx); blk; blk = htx_get_next_blk(htx, blk)) {
+ if (htx_get_blk_type(blk) != HTX_BLK_DATA)
+ break;
+
+ sz = htx_get_blksz(blk);
+ if (offset >= sz) {
+ offset -= sz;
+ continue;
+ }
+ data += sz - offset;
+ offset = 0;
+ if (data > len) {
+ data = len;
+ break;
+ }
+ }
+
ret = random() % (ret+1);
+ if (ret > data)
+ ret = len;
+ }
STRM_TRACE(conf, s, "%-25s: channel=%-10s - mode=%-5s (%s) - "
"offset=%u - len=%u - forward=%d",