diff options
| author | root <root@rshg054.dnsready.net> | 2012-08-27 00:04:02 +0000 |
|---|---|---|
| committer | root <root@rshg054.dnsready.net> | 2012-08-27 00:04:02 +0000 |
| commit | fda2b119766956ebbf97ba80640e6eeb1519cad4 (patch) | |
| tree | 50f7d948c45070fe310494e3446d50ad132f1100 /core/wireless_tools | |
| parent | ca0c70ec611689e1233665e7e8c0b1bb99415bc0 (diff) | |
Mon Aug 27 00:04:01 UTC 2012
Diffstat (limited to 'core/wireless_tools')
| -rw-r--r-- | core/wireless_tools/PKGBUILD | 17 | ||||
| -rw-r--r-- | core/wireless_tools/dense.patch | 49 |
2 files changed, 59 insertions, 7 deletions
diff --git a/core/wireless_tools/PKGBUILD b/core/wireless_tools/PKGBUILD index cb6de3cd9..6c377cc12 100644 --- a/core/wireless_tools/PKGBUILD +++ b/core/wireless_tools/PKGBUILD @@ -1,21 +1,24 @@ -# $Id: PKGBUILD 147661 2012-01-26 03:32:18Z bisson $ +# $Id: PKGBUILD 165574 2012-08-25 15:33:20Z bisson $ # Maintainer: Gaetan Bisson <bisson@archlinux.org> # Contributor: Giovanni Scafora <giovanni@archlinux.org> # Contributor: Jason Chu <jchu@xentac.net> pkgname=wireless_tools pkgver=29 -pkgrel=6 -pkgdesc='Wireless Tools' +pkgrel=7 +pkgdesc='Tools allowing to manipulate the Wireless Extensions' url='http://www.hpl.hp.com/personal/Jean_Tourrilhes/Linux/Tools.html' -arch=('i686' 'x86_64') license=('GPL') -source=("http://www.hpl.hp.com/personal/Jean_Tourrilhes/Linux/${pkgname}.${pkgver}.tar.gz") -sha1sums=('22040ac1497f4c5f8ddeca365591b01ae3475710') +arch=('i686' 'x86_64') +source=("http://www.hpl.hp.com/personal/Jean_Tourrilhes/Linux/${pkgname}.${pkgver}.tar.gz" + 'dense.patch') +sha1sums=('22040ac1497f4c5f8ddeca365591b01ae3475710' + '5c297c7dff1ec1d2a3d918c20622ab3c6daf5b72') build() { cd "${srcdir}/${pkgname}.${pkgver}" - make CFLAGS="${CFLAGS} -Wall -Wextra -I." LDFLAGS="${LDFLAGS}" + patch -p1 -i ../dense.patch # FS#15363 + make CFLAGS="${CFLAGS} -I." LDFLAGS="${LDFLAGS}" } package() { diff --git a/core/wireless_tools/dense.patch b/core/wireless_tools/dense.patch new file mode 100644 index 000000000..85182cd82 --- /dev/null +++ b/core/wireless_tools/dense.patch @@ -0,0 +1,49 @@ +The length field of wext data (iw_point.data) is 16 bits. The largest +value is thus 65535. During the attempts to increase buffer size the +buffer starts at 4096 and is doubled after each failure to fill. From the +time this length reaches 65536 it is effectively zero. We thus loose all +potential space from 32768 to 65535. + +This problem is clear when scanning in a RF dense environment. + +Without this patch: +~$ iwlist wlan0 scan +print_scanning_info: Allocation failed + +With this patch: +~$ iwlist wlan0 scan | grep Cell | wc -l +86 + +Signed-off-by: Reinette Chatre <reinette.chatre@intel.com> + +--- +A similar patch was recently created to fix wpa_supplicant. + +I could not find a source code repo for this code and created this patch +against version 30-pre7 downloaded from +http://www.hpl.hp.com/personal/Jean_Tourrilhes/Linux/Tools.html + +diff -uprN wireless_tools_org/wireless_tools.30/iwlist.c wireless_tools.30/iwlist.c +--- wireless_tools_org/wireless_tools.30/iwlist.c 2008-01-16 17:45:41.000000000 -0800 ++++ wireless_tools.30/iwlist.c 2009-02-12 14:16:48.000000000 -0800 +@@ -800,7 +800,7 @@ print_scanning_info(int skfd, + if(iw_get_ext(skfd, ifname, SIOCGIWSCAN, &wrq) < 0) + { + /* Check if buffer was too small (WE-17 only) */ +- if((errno == E2BIG) && (range.we_version_compiled > 16)) ++ if((errno == E2BIG) && (range.we_version_compiled > 16) && (buflen < 65535)) + { + /* Some driver may return very large scan results, either + * because there are many cells, or because they have many +@@ -816,6 +816,10 @@ print_scanning_info(int skfd, + else + buflen *= 2; + ++ /* wrq.u.data.length is 16 bits so max size is 65535 */ ++ if(buflen > 65535) ++ buflen = 65535; ++ + /* Try again */ + goto realloc; + } + |