domenico/openwrt_NSS_ACW
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity
Files
84f13e19b46a0378c49f0694e111803e4d94788f
openwrt_NSS_ACW/package/firmware/wireless-regdb/patches/100-regdb-write-firmware-file-format-version-code-20.patch
Felix Fietkau a8d751c243 wireless-regdb: add package containing the wireless regulatory database 
Installs to /lib/firmware for newer cfg80211 versions

Signed-off-by: Felix Fietkau <nbd@nbd.name>
2017-11-16 15:23:32 +01:00

252 lines
7.4 KiB
Diff
Raw Blame History

From: Johannes Berg <johannes.berg@intel.com>
Date: Mon, 9 Oct 2017 11:50:57 +0200
Subject: [PATCH] regdb: write firmware file format (version code 20)
TODO: clean up the Makefile stuff ...
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
---
create mode 100755 db2fw.py
--- a/Makefile
+++ b/Makefile
@@ -1,7 +1,5 @@
# Install prefix
PREFIX ?= /usr
-CRDA_PATH ?= $(PREFIX)/lib/crda
-CRDA_KEY_PATH ?= $(CRDA_PATH)/pubkeys
MANDIR ?= $(PREFIX)/share/man/
@@ -30,39 +28,47 @@ REGDB_AUTHOR ?= $(shell if [ -f $(DISTRO
fi)
REGDB_PRIVKEY ?= ~/.wireless-regdb-$(REGDB_AUTHOR).key.priv.pem
-REGDB_PUBKEY ?= $(REGDB_AUTHOR).key.pub.pem
-
-REGDB_UPSTREAM_PUBKEY ?= sforshee.key.pub.pem
+REGDB_PUBCERT ?= $(REGDB_AUTHOR).x509.pem
REGDB_CHANGED = $(shell $(SHA1SUM) -c --status sha1sum.txt >/dev/null 2>&1; \
if [ $$? -ne 0 ]; then \
- echo maintainer-clean $(REGDB_PUBKEY); \
+ echo maintainer-clean $(REGDB_PUBCERT); \
fi)
.PHONY: all clean mrproper install maintainer-clean install-distro-key
-all: $(REGDB_CHANGED) regulatory.bin sha1sum.txt
+all: $(REGDB_CHANGED) regulatory.db.p7s sha1sum.txt
clean:
@rm -f *.pyc *.gz
maintainer-clean: clean
- @rm -f regulatory.bin
+ @rm -f regulatory.db regulatory.db.p7s
mrproper: clean maintainer-clean
- @echo Removed public key, regulatory.bin and compresed man pages
- @rm -f $(REGDB_PUBKEY) .custom
+ @echo Removed public key, regulatory.db* and compressed man pages
+ @rm -f $(REGDB_PUBCERT) .custom
-regulatory.bin: db.txt $(REGDB_PRIVKEY) $(REGDB_PUBKEY)
- @echo Generating $@ digitally signed by $(REGDB_AUTHOR)...
- ./db2bin.py regulatory.bin db.txt $(REGDB_PRIVKEY)
+regulatory.db: db.txt db2fw.py
+ @echo "Generating $@"
+ ./db2fw.py regulatory.db db.txt
+
+regulatory.db.p7s: regulatory.db $(REGDB_PRIVKEY) $(REGDB_PUBCERT)
+ @echo "Signing regulatory.db (by $(REGDB_AUTHOR))..."
+ @openssl smime -sign \
+ -signer $(REGDB_PUBCERT) \
+ -inkey $(REGDB_PRIVKEY) \
+ -in $< -nosmimecap -binary \
+ -outform DER -out $@
sha1sum.txt: db.txt
sha1sum $< > $@
-$(REGDB_PUBKEY): $(REGDB_PRIVKEY)
- @echo "Generating public key for $(REGDB_AUTHOR)..."
- openssl rsa -in $(REGDB_PRIVKEY) -out $(REGDB_PUBKEY) -pubout -outform PEM
+$(REGDB_PUBCERT): $(REGDB_PRIVKEY)
+ @echo "Generating certificate for $(REGDB_AUTHOR)..."
+ @openssl req -config regulatory.openssl.conf \
+ -key $(REGDB_PRIVKEY) -days 36500 -utf8 -nodes -batch \
+ -x509 -outform PEM -out $(REGDB_PUBCERT)
@echo $(REGDB_PUBKEY) > .custom
@@ -97,16 +103,7 @@ install-distro-key: maintainer-clean $(D
# make maintainer-clean
# make
# sudo make install
-install: regulatory.bin.5.gz
- install -m 755 -d $(DESTDIR)/$(CRDA_PATH)
- install -m 755 -d $(DESTDIR)/$(CRDA_KEY_PATH)
- if [ -f .custom ]; then \
- install -m 644 -t $(DESTDIR)/$(CRDA_KEY_PATH)/ $(shell cat .custom); \
- fi
- install -m 644 -t $(DESTDIR)/$(CRDA_KEY_PATH)/ $(REGDB_UPSTREAM_PUBKEY)
- install -m 644 -t $(DESTDIR)/$(CRDA_PATH)/ regulatory.bin
+install: regulatory.db.5.gz
+ install -m 644 -t $(DESTDIR)/$(CRDA_PATH)/ regulatory.db
install -m 755 -d $(DESTDIR)/$(MANDIR)/man5/
- install -m 644 -t $(DESTDIR)/$(MANDIR)/man5/ regulatory.bin.5.gz
-
-uninstall:
- rm -rf $(DESTDIR)/$(CRDA_PATH)/
+ install -m 644 -t $(DESTDIR)/$(MANDIR)/man5/ regulatory.db.5.gz
--- a/README
+++ b/README
@@ -18,8 +18,8 @@ python module is used by the web viewer
implemented as a MoinMoin macro (and used on http://wireless.kernel.org)
to allow viewing the database for verification.
-The dbparse module is also used by db2bin.py, the `compiler', which
-compiles and signs the binary database.
+The dbparse module is also used by db2bin.py and db2fw.py, the `compilers'
+that compile the database to its binary formats.
For more information, please see the CRDA git repository:
--- /dev/null
+++ b/db2fw.py
@@ -0,0 +1,133 @@
+#!/usr/bin/env python
+
+from cStringIO import StringIO
+import struct
+import hashlib
+from dbparse import DBParser
+import sys
+
+MAGIC = 0x52474442
+VERSION = 20
+
+if len(sys.argv) < 3:
+ print 'Usage: %s output-file input-file' % sys.argv[0]
+ sys.exit(2)
+
+def create_rules(countries):
+ result = {}
+ for c in countries.itervalues():
+ for rule in c.permissions:
+ result[rule] = 1
+ return result.keys()
+
+def create_collections(countries):
+ result = {}
+ for c in countries.itervalues():
+ result[(c.permissions, c.dfs_region)] = 1
+ return result.keys()
+
+
+def be32(output, val):
+ output.write(struct.pack('>I', val))
+def be16(output, val):
+ output.write(struct.pack('>H', val))
+
+class PTR(object):
+ def __init__(self, output):
+ self._output = output
+ self._pos = output.tell()
+ be16(output, 0)
+ self._written = False
+
+ def set(self, val=None):
+ if val is None:
+ val = self._output.tell()
+ assert val & 3 == 0
+ self._offset = val
+ pos = self._output.tell()
+ self._output.seek(self._pos)
+ be16(self._output, val >> 2)
+ self._output.seek(pos)
+ self._written = True
+
+ def get(self):
+ return self._offset
+
+ @property
+ def written(self):
+ return self._written
+
+p = DBParser()
+countries = p.parse(file(sys.argv[2]))
+rules = create_rules(countries)
+rules.sort(cmp=lambda x, y: cmp(x.freqband, y.freqband))
+collections = create_collections(countries)
+collections.sort(cmp=lambda x, y: cmp(x[0][0].freqband, y[0][0].freqband))
+
+output = StringIO()
+
+# struct regdb_file_header
+be32(output, MAGIC)
+be32(output, VERSION)
+
+country_ptrs = {}
+countrynames = countries.keys()
+countrynames.sort()
+for alpha2 in countrynames:
+ coll = countries[alpha2]
+ output.write(struct.pack('>cc', str(alpha2[0]), str(alpha2[1])))
+ country_ptrs[alpha2] = PTR(output)
+output.write('\x00' * 4)
+
+reg_rules = {}
+flags = 0
+for reg_rule in rules:
+ freq_range, power_rule = reg_rule.freqband, reg_rule.power
+ reg_rules[reg_rule] = output.tell()
+ assert power_rule.max_ant_gain == 0
+ flags = 0
+ # convert to new rule flags
+ assert reg_rule.flags & ~0x899 == 0
+ if reg_rule.flags & 1<<0:
+ flags |= 1<<0
+ if reg_rule.flags & 1<<3:
+ flags |= 1<<1
+ if reg_rule.flags & 1<<4:
+ flags |= 1<<2
+ if reg_rule.flags & 1<<7:
+ flags |= 1<<3
+ if reg_rule.flags & 1<<11:
+ flags |= 1<<4
+ rule_len = 16
+ cac_timeout = 0 # TODO
+ if not (flags & 1<<2):
+ cac_timeout = 0
+ if cac_timeout:
+ rule_len += 2
+ output.write(struct.pack('>BBHIII', rule_len, flags, power_rule.max_eirp * 100,
+ freq_range.start * 1000, freq_range.end * 1000, freq_range.maxbw * 1000,
+ ))
+ if cac_timeout:
+ output.write(struct.pack('>H', cac_timeout))
+ while rule_len % 4:
+ output.write('\0')
+ rule_len += 1
+
+for coll in collections:
+ for alpha2 in countrynames:
+ if (countries[alpha2].permissions, countries[alpha2].dfs_region) == coll:
+ assert not country_ptrs[alpha2].written
+ country_ptrs[alpha2].set()
+ slen = 3
+ output.write(struct.pack('>BBBx', slen, len(list(coll[0])), coll[1]))
+ coll = list(coll[0])
+ for regrule in coll:
+ be16(output, reg_rules[regrule] >> 2)
+ if len(coll) % 2:
+ be16(output, 0)
+
+for alpha2 in countrynames:
+ assert country_ptrs[alpha2].written
+
+outfile = open(sys.argv[1], 'w')
+outfile.write(output.getvalue())
Reference in New Issue View Git Blame Copy Permalink