[OpenWrt-Devel] [PATCH] wireless-regdb: Make it build with python2

[Hauke Mehrtens]

This backports a patch to build it work with python2 in addition to
python3.

Signed-off-by: Hauke Mehrtens <hauke at hauke-m.de>
---

After this patch went into master I would like to backport all the 
changes for wireless-regdb from master to OpenWrt 19.07.
There are already some changes to the regulatory rules in this database 
and I would like to stay close to the current legal guidelines for
OpenWrt 19.07 as well.

 ...regdb-fix-compatibility-with-python2.patch | 58 +++++++++++++++++++
 1 file changed, 58 insertions(+)
 create mode 100644 package/firmware/wireless-regdb/patches/010-regdb-fix-compatibility-with-python2.patch

diff --git a/package/firmware/wireless-regdb/patches/010-regdb-fix-compatibility-with-python2.patch b/package/firmware/wireless-regdb/patches/010-regdb-fix-compatibility-with-python2.patch
new file mode 100644
index 0000000000..81f50f5dc0
--- /dev/null
+++ b/package/firmware/wireless-regdb/patches/010-regdb-fix-compatibility-with-python2.patch
@@ -0,0 +1,58 @@
+From 651e39dee8605995b736b6056c6f7dc5c5a9c948 Mon Sep 17 00:00:00 2001
+From: Johannes Berg <johannes.berg at intel.com>
+Date: Thu, 22 Aug 2019 21:46:27 +0200
+Subject: [PATCH] regdb: fix compatibility with python2
+
+Various changes in the commit mentioned below broke
+compatibility with python2. Restore it in a way that
+makes it worth with both versions.
+
+Fixes: f3c4969c2485 ("wireless-regdb: make scripts compatible with Python 3")
+Signed-off-by: Johannes Berg <johannes.berg at intel.com>
+Signed-off-by: Seth Forshee <seth.forshee at canonical.com>
+---
+ db2bin.py  | 2 +-
+ db2fw.py   | 2 +-
+ dbparse.py | 3 +--
+ 3 files changed, 3 insertions(+), 4 deletions(-)
+
+--- a/db2bin.py
++++ b/db2bin.py
+@@ -118,7 +118,7 @@ reg_country_ptr.set()
+ for alpha2 in countrynames:
+     coll = countries[alpha2]
+     # struct regdb_file_reg_country
+-    output.write(struct.pack('>BBxBI', alpha2[0], alpha2[1], coll.dfs_region, reg_rules_collections[coll.permissions]))
++    output.write(struct.pack('>2sxBI', alpha2, coll.dfs_region, reg_rules_collections[coll.permissions]))
+ 
+ 
+ if len(sys.argv) > 3:
+--- a/db2fw.py
++++ b/db2fw.py
+@@ -85,7 +85,7 @@ countrynames = list(countries)
+ countrynames.sort()
+ for alpha2 in countrynames:
+     coll = countries[alpha2]
+-    output.write(struct.pack('>BB', alpha2[0], alpha2[1]))
++    output.write(struct.pack('>2s', alpha2))
+     country_ptrs[alpha2] = PTR(output)
+ output.write(b'\x00' * 4)
+ 
+--- a/dbparse.py
++++ b/dbparse.py
+@@ -1,6 +1,5 @@
+ #!/usr/bin/env python
+ 
+-from builtins import bytes
+ from functools import total_ordering
+ import sys, math
+ from math import ceil, log
+@@ -359,7 +358,7 @@ class DBParser(object):
+         for cname in cnames:
+             if len(cname) != 2:
+                 self._warn("country '%s' not alpha2" % cname)
+-            cname = bytes(cname, 'ascii')
++            cname = cname.encode('ascii')
+             if not cname in self._countries:
+                 self._countries[cname] = Country(dfs_region, comments=self._comments)
+             self._current_countries[cname] = self._countries[cname]
-- 
2.20.1


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