From 64e33bf9adf6c9087327a6e153eed9687723c3c9 Mon Sep 17 00:00:00 2001
From: Oliver Hartkopp <socketcan@hartkopp.net>
Date: Tue, 28 Apr 2020 07:21:52 +0200
Subject: [PATCH] cansniffer: add new interactive commands to enable/disable
 SFF/EFF frames

With the new commands

a<ENTER>        - enable 'a'll SFF CAN-IDs to sniff
n<ENTER>        - enable 'n'one SFF CAN-IDs to sniff
A<ENTER>        - enable 'A'll EFF CAN-IDs to sniff
N<ENTER>        - enable 'N'one EFF CAN-IDs to sniff

the EFF/SFF frames can be added/removed with a single command.
Of course this could be done with the '+' and '-' filters too.
But 'N' is much easier to type then '-0000000000000000' ...

Signed-off-by: Oliver Hartkopp <socketcan@hartkopp.net>
---
 cansniffer.c | 28 ++++++++++++++++++++++++++++
 1 file changed, 28 insertions(+)

diff --git a/cansniffer.c b/cansniffer.c
index d65b6ec..f6206c0 100644
--- a/cansniffer.c
+++ b/cansniffer.c
@@ -171,6 +171,10 @@ void print_usage(char *prg)
 		" *<ENTER>        - clear notched marked\n"
 		" rMYNAME<ENTER>  - read settings file (filter/notch)\n"
 		" wMYNAME<ENTER>  - write settings file (filter/notch)\n"
+		" a<ENTER>        - enable 'a'll SFF CAN-IDs to sniff\n"
+		" n<ENTER>        - enable 'n'one SFF CAN-IDs to sniff\n"
+		" A<ENTER>        - enable 'A'll EFF CAN-IDs to sniff\n"
+		" N<ENTER>        - enable 'N'one EFF CAN-IDs to sniff\n"
 		" +FILTER<ENTER>  - add CAN-IDs to sniff\n"
 		" -FILTER<ENTER>  - remove CAN-IDs to sniff\n"
 		"\n"
@@ -448,6 +452,30 @@ int handle_keyb(int fd){
 
 		break;
 
+	case 'a' : /* all SFF CAN IDs */
+		value = 0;
+		mask = 0xFFFF800; /* cleared flags! */
+		do_modify_sniftab(value, mask, '+');
+		break;
+
+	case 'n' : /* none SFF CAN IDs */
+		value = 0;
+		mask = 0xFFFF800; /* cleared flags! */
+		do_modify_sniftab(value, mask, '-');
+		break;
+
+	case 'A' : /* all EFF CAN IDs */
+		value = CAN_EFF_FLAG;
+		mask = CAN_EFF_FLAG;
+		do_modify_sniftab(value, mask, '+');
+		break;
+
+	case 'N' : /* none EFF CAN IDs */
+		value = CAN_EFF_FLAG;
+		mask = CAN_EFF_FLAG;
+		do_modify_sniftab(value, mask, '-');
+		break;
+
 	case 'w' :
 		writesettings(&cmd[1]);
 		break;