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Fix response latency calculation

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Previously latency calcualted as Response.End - Request.Start
Where both End and Start is a last and first packets

This calcualtion is wrong, because it is total roundtrip

Correct server latency will be Response.End - Request.End

In addition added new `--input-raw-timestamp-type` option
which allows choose more precise packet timestamp source (if available).
This commit is contained in:
Leonid Bugaev
2018-02-05 21:47:48 +02:00
parent f8a1b9dde6
commit 0097c599df
14 changed files with 70 additions and 47 deletions
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settings.go
+5 -2
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@@ -54,6 +54,7 @@ type AppSettings struct {
inputRAWRealIPHeader string
inputRAWExpire time.Duration
inputRAWBpfFilter string
inputRAWTimestampType string
middleware string
@@ -130,6 +131,8 @@ func init() {
flag.StringVar(&Settings.inputRAWBpfFilter, "input-raw-bpf-filter", "", "BPF filter to write custom expressions. Can be useful in case of non standard network interfaces like tunneling or SPAN port. Example: --input-raw-bpf-filter 'dst port 80'")
flag.StringVar(&Settings.inputRAWTimestampType, "input-raw-timestamp-type", "", "Possible values: PCAP_TSTAMP_HOST, PCAP_TSTAMP_HOST_LOWPREC, PCAP_TSTAMP_HOST_HIPREC, PCAP_TSTAMP_ADAPTER, PCAP_TSTAMP_ADAPTER_UNSYNCED. This values not supported on all systems, GoReplay will tell you available values of you put wrong one.")
flag.StringVar(&Settings.middleware, "middleware", "", "Used for modifying traffic using external command")
// flag.Var(&Settings.inputHTTP, "input-http", "Read requests from HTTP, should be explicitly sent from your application:\n\t# Listen for http on 9000\n\tgor --input-http :9000 --output-http staging.com")
@@ -178,9 +181,9 @@ func init() {
flag.Var(&Settings.modifierConfig.headerNegativeFilters, "http-disallow-header", "A regexp to match a specific header against. Requests with matching headers will be dropped:\n\t gor --input-raw :8080 --output-http staging.com --http-disallow-header \"User-Agent: Replayed by Gor\"")
flag.Var(&Settings.modifierConfig.headerBasicAuthFilters, "http-basic-auth-filter", "A regexp to match the decoded basic auth string against. Requests with non-matching headers will be dropped:\n\t gor --input-raw :8080 --output-http staging.com --http-basic-auth-filter \"^customer[0-9].*\"")
flag.Var(&Settings.modifierConfig.headerBasicAuthFilters, "http-basic-auth-filter", "A regexp to match the decoded basic auth string against. Requests with non-matching headers will be dropped:\n\t gor --input-raw :8080 --output-http staging.com --http-basic-auth-filter \"^customer[0-9].*\"")
flag.Var(&Settings.modifierConfig.headerHashFilters, "http-header-limiter", "Takes a fraction of requests, consistently taking or rejecting a request based on the FNV32-1A hash of a specific header:\n\t gor --input-raw :8080 --output-http staging.com --http-header-limiter user-id:25%")
flag.Var(&Settings.modifierConfig.headerHashFilters, "http-header-limiter", "Takes a fraction of requests, consistently taking or rejecting a request based on the FNV32-1A hash of a specific header:\n\t gor --input-raw :8080 --output-http staging.com --http-header-limiter user-id:25%")
flag.Var(&Settings.modifierConfig.headerHashFilters, "output-http-header-hash-filter", "WARNING: `output-http-header-hash-filter` DEPRECATED, use `--http-header-hash-limiter` instead")