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Adapted for version 1.1 by Zero_Chaos based on original
From: Paul Fertser <fercerpav@gmail.com>
Date: Wed, 12 Jan 2011 00:27:07 +0300
Subject: [PATCH] aireplay-ng: add an option to ignore channel -1 error
Allow the user to ignore the channel match check when the host kernel is
not providing channel for the used interface. Required with unpatched
cfg80211 kernels.
Signed-off-by: Paul Fertser <fercerpav@gmail.com>
diff -Naur aircrack-ng-1.1-orig/src/aireplay-ng.c aircrack-ng-1.1/src/aireplay-ng.c
--- aircrack-ng-1.1-orig/src/aireplay-ng.c 2011-01-11 19:45:09.000000000 -0500
+++ aircrack-ng-1.1/src/aireplay-ng.c 2011-01-11 19:44:34.000000000 -0500
@@ -205,7 +205,9 @@
"\n"
" Miscellaneous options:\n"
"\n"
-" -R : disable /dev/rtc usage\n"
+" -R : disable /dev/rtc usage\n"
+" --ignore-negative-one : if the interface's channel can't be determined,\n"
+" ignore the mismatch, needed for unpatched cfg80211\n"
"\n"
" Attack modes (numbers can still be used):\n"
"\n"
@@ -274,6 +276,7 @@
int bittest;
int nodetect;
+ int ignore_negative_one;
int rtc;
int reassoc;
@@ -723,6 +726,13 @@
iface_chan = wi_get_channel(wi);
+ if(iface_chan == -1 && !opt.ignore_negative_one)
+ {
+ PCT; printf("Couldn't determine current channel for %s, you should either force the operation with --ignore-negative-one or apply a kernel patch\n",
+ wi_get_ifname(wi));
+ return -1;
+ }
+
if(bssid != NULL)
{
ap_chan = wait_for_beacon(bssid, capa, essid);
@@ -731,7 +741,7 @@
PCT; printf("No such BSSID available.\n");
return -1;
}
- if(ap_chan != iface_chan)
+ if((ap_chan != iface_chan) && (iface_chan != -1 || !opt.ignore_negative_one))
{
PCT; printf("%s is on channel %d, but the AP uses channel %d\n", wi_get_ifname(wi), iface_chan, ap_chan);
return -1;
@@ -6318,6 +6328,7 @@
{"fast", 0, 0, 'F'},
{"bittest", 0, 0, 'B'},
{"migmode", 0, 0, 'W'},
+ {"ignore-negative-one", 0, &opt.ignore_negative_one, 1},
{0, 0, 0, 0 }
};
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