| NGM_TCPMSS_CONFIG(config) |
| | This control message configures node to do given MSS adjusting on a particular hook. It requires the
.Vt "struct ng_tcpmss_config" to be supplied as an argument:
struct ng_tcpmss_config {
char inHook[NG_HOOKSIZ];
char outHook[NG_HOOKSIZ];
uint16_t maxMSS;
}
This means: packets received on inHook would be checked for TCP MSS option and the latter would be reduced down to maxMSS if it exceeds maxMSS. After that, packets would be sent to hook outHook. |
| NGM_TCPMSS_GET_STATS(getstats) |
| | This control message obtains statistics for a given hook. The statistics are returned in
.Vt "struct ng_tcpmss_hookstat" :
struct ng_tcpmss_hookstat {
uint64_t Octets; /* total bytes */
uint64_t Packets; /* total packets */
uint16_t maxMSS; /* maximum MSS */
uint64_t SYNPkts; /* TCP SYN packets */
uint64_t FixedPkts; /* changed packets */
};
|
| NGM_TCPMSS_CLR_STATS(clrstats) |
| | This control message clears statistics for a given hook. |
| NGM_TCPMSS_GETCLR_STATS(getclrstats) |
| | This control message obtains and clears statistics for a given hook. |
|
