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Better detection of when linux has retransmit info in tcp_info.

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This commit is contained in:
Jef Poskanzer 2012-12-03 22:02:31 -08:00
parent 9d1fc7c676
commit d6e2781d18
1 changed files with 7 additions and 2 deletions
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9
src/tcp_info.c
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@ -54,7 +54,12 @@ has_tcpinfo(void)
int
has_tcpinfo_retransmits(void)
{
#if defined(linux)
#if defined(linux) && defined(TCP_MD5SIG)
/* TCP_MD5SIG doesn't actually have anything to do with TCP
** retransmits, it just showed up in the same rev of the header
** file. If it's present then struct tcp_info has the
** tcpi_total_retrans field that we need; if not, not.
*/
return 1;
#else
#if defined(__FreeBSD__) && __FreeBSD_version >= 600000
@ -83,7 +88,7 @@ save_tcpinfo(struct iperf_stream *sp, struct iperf_interval_results *irp)
long
get_tcpinfo_total_retransmits(struct iperf_interval_results *irp)
{
#if defined(linux)
#if defined(linux) && defined(TCP_MD5SIG)
return irp->tcpInfo.tcpi_total_retrans;
#else
#if defined(__FreeBSD__) && __FreeBSD_version >= 600000