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Move stats map initialization and increase blocked count for source IPs on blocked map.

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This commit is contained in:
Christian Deacon
2020-06-04 18:06:12 +00:00
parent af26940018
commit f7a2f0ccfb
1 changed files with 13 additions and 6 deletions
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19
src/xdpfw_kern.c
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@@ -115,6 +115,12 @@ int xdp_prog_main(struct xdp_md *ctx)
return XDP_DROP;
}
// Get stats map.
uint32_t key = 0;
struct xdpfw_stats *stats;
stats = bpf_map_lookup_elem(&stats_map, &key);
uint64_t now = bpf_ktime_get_ns();
// Check blacklist map.
@@ -133,6 +139,12 @@ int xdp_prog_main(struct xdp_md *ctx)
}
else
{
// Increase blocked stats entry.
if (stats)
{
__sync_fetch_and_add(&stats->blocked, 1);
}
// They're still blocked. Drop the packet.
return XDP_DROP;
}
@@ -460,12 +472,7 @@ int xdp_prog_main(struct xdp_md *ctx)
if (matched)
{
// Get stats map.
uint32_t key = 0;
struct xdpfw_stats *stats;
stats = bpf_map_lookup_elem(&stats_map, &key);
// Increase allowed or blocked entries on stats map.
if (stats)
{
// Update stats map.