From: Richard Scheffenegger <rsch...@freebsd.org> TCP per RFC793 has 4 reserved flag bits for future use. One of those bits may be used for Accurate ECN. This patch is to include these bits in the LRO code to ease the extensibility if/when these bits are used.
Reviewed By: hselasky, rrs, #transport Sponsored by: NetApp, Inc. Differential Revision: https://reviews.freebsd.org/D34127 --- newlib/libc/sys/rtems/include/netinet/tcp.h | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/newlib/libc/sys/rtems/include/netinet/tcp.h b/newlib/libc/sys/rtems/include/netinet/tcp.h index 6dc7403aa..6a3603287 100644 --- a/newlib/libc/sys/rtems/include/netinet/tcp.h +++ b/newlib/libc/sys/rtems/include/netinet/tcp.h @@ -55,12 +55,12 @@ struct tcphdr { tcp_seq th_seq; /* sequence number */ tcp_seq th_ack; /* acknowledgement number */ #if BYTE_ORDER == LITTLE_ENDIAN - u_char th_x2:4, /* (unused) */ + u_char th_x2:4, /* upper 4 (reserved) flags */ th_off:4; /* data offset */ #endif #if BYTE_ORDER == BIG_ENDIAN u_char th_off:4, /* data offset */ - th_x2:4; /* (unused) */ + th_x2:4; /* upper 4 (reserved) flags */ #endif u_char th_flags; #define TH_FIN 0x01 -- 2.35.3 _______________________________________________ devel mailing list devel@rtems.org http://lists.rtems.org/mailman/listinfo/devel
