From 9556751e3272308b048667e739b1baeeb5a2cbd5 Mon Sep 17 00:00:00 2001 From: Tobias Klauser Date: Mon, 29 Sep 2014 16:54:12 +0200 Subject: netsniff-ng: Fix tpacketv2-only capturing We need to set up the RX ring depending on whether tpacket v3 is available or not. Otherwise end up setting its structure up for tpacket v3, even though only tpacket v2 is available. This should fix packet capturing for tpacket v2 (i.e. corrupted frames in pcap). Reported-by: Mike Reeves Signed-off-by: Tobias Klauser --- built_in.h | 7 +++++++ 1 file changed, 7 insertions(+) (limited to 'built_in.h') diff --git a/built_in.h b/built_in.h index aab4ef6..92996ce 100644 --- a/built_in.h +++ b/built_in.h @@ -96,6 +96,13 @@ typedef uint8_t u8; # define __force /* unimplemented */ #endif +/* see config_enabled et al. in linux/kconfig.h for details. */ +#define __ARG_PLACEHOLDER_1 0, +#define is_defined(cfg) _is_defined(cfg) +#define _is_defined(value) __is_defined(__ARG_PLACEHOLDER_##value) +#define __is_defined(arg1_or_junk) ___is_defined(arg1_or_junk 1, 0) +#define ___is_defined(__ignored, val, ...) val + #ifndef force_cast # define force_cast(type, arg) ((type) (arg)) #endif -- cgit v1.2.3-54-g00ecf