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l7: parse memcached delete commands without trailing arguments #384

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RaphaelFakhri wants to merge 1 commit into from
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l7: parse memcached delete commands without trailing arguments #384

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8 changes: 8 additions & 0 deletions ebpftracer/l7/l7_test.go
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Original file line number Diff line number Diff line change
Expand Up @@ -27,6 +27,14 @@ func Test_parseMemcached(t *testing.T) {
cmd, items = ParseMemcached(append([]byte(`gets 1111 2222 3333`), '\r', '\n'))
assert.Equal(t, "gets", cmd)
assert.Equal(t, []string{"1111", "2222", "3333"}, items)

cmd, items = ParseMemcached(append([]byte(`delete 1111`), '\r', '\n'))
assert.Equal(t, "delete", cmd)
assert.Equal(t, []string{"1111"}, items)

cmd, items = ParseMemcached(append([]byte(`delete 1111 noreply`), '\r', '\n'))
assert.Equal(t, "delete", cmd)
assert.Equal(t, []string{"1111"}, items)
}

func TestParseRedis(t *testing.T) {
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6 changes: 5 additions & 1 deletion ebpftracer/l7/memcached.go
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Expand Up @@ -18,7 +18,11 @@ func ParseMemcached(payload []byte) (string, []string) {
command := string(cmd)
switch command {
case "set", "add", "cas", "append", "prepend", "replace", "delete", "incr", "decr", "touch":
if key, _, ok := bytes.Cut(rest, space); ok {
key, _, ok := bytes.Cut(rest, space)
if !ok {
key, _, ok = bytes.Cut(rest, crlf) // e.g., "delete <key>\r\n"
}
if ok {
return command, []string{string(key)}
}
case "gat", "gats":
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