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>
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Felix Fietkau
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3 changed files with 298 additions and 0 deletions
31
package/firmware/wireless-regdb/Makefile
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31
package/firmware/wireless-regdb/Makefile
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@ -0,0 +1,31 @@
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include $(TOPDIR)/rules.mk
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PKG_NAME:=wireless-regdb
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PKG_SOURCE_PROTO:=git
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PKG_SOURCE_URL:=https://git.kernel.org/pub/scm/linux/kernel/git/sforshee/wireless-regdb.git
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PKG_SOURCE_DATE:=2017-10-20
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PKG_SOURCE_VERSION:=4343d359ed5e7404de8803a74df186457b26ab79
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PKG_MIRROR_HASH:=b827bf760de57b907df159c8d38d7c3fb5b4a691781114c47739e20bffb3a312
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PKG_MAINTAINER:=Felix Fietkau <nbd@nbd.name>
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include $(INCLUDE_DIR)/package.mk
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define Package/wireless-regdb
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SECTION:=firmware
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CATEGORY:=Firmware
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URL:=$(patsubst pub/scm,cgit,$(PKG_SOURCE_URL))
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TITLE:=Wireless Regulatory Database
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endef
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define Build/Compile
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python $(PKG_BUILD_DIR)/db2fw.py $(PKG_BUILD_DIR)/regulatory.db $(PKG_BUILD_DIR)/db.txt
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endef
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define Package/wireless-regdb/install
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$(INSTALL_DIR) $(1)/lib/firmware
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$(CP) $(PKG_BUILD_DIR)/regulatory.db $(1)/lib/firmware/
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endef
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$(eval $(call BuildPackage,wireless-regdb))
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@ -0,0 +1,251 @@
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From: Johannes Berg <johannes.berg@intel.com>
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Date: Mon, 9 Oct 2017 11:50:57 +0200
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Subject: [PATCH] regdb: write firmware file format (version code 20)
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TODO: clean up the Makefile stuff ...
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Signed-off-by: Johannes Berg <johannes.berg@intel.com>
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---
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create mode 100755 db2fw.py
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--- a/Makefile
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+++ b/Makefile
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@@ -1,7 +1,5 @@
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# Install prefix
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PREFIX ?= /usr
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-CRDA_PATH ?= $(PREFIX)/lib/crda
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-CRDA_KEY_PATH ?= $(CRDA_PATH)/pubkeys
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MANDIR ?= $(PREFIX)/share/man/
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@@ -30,39 +28,47 @@ REGDB_AUTHOR ?= $(shell if [ -f $(DISTRO
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fi)
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REGDB_PRIVKEY ?= ~/.wireless-regdb-$(REGDB_AUTHOR).key.priv.pem
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-REGDB_PUBKEY ?= $(REGDB_AUTHOR).key.pub.pem
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-
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-REGDB_UPSTREAM_PUBKEY ?= sforshee.key.pub.pem
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+REGDB_PUBCERT ?= $(REGDB_AUTHOR).x509.pem
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REGDB_CHANGED = $(shell $(SHA1SUM) -c --status sha1sum.txt >/dev/null 2>&1; \
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if [ $$? -ne 0 ]; then \
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- echo maintainer-clean $(REGDB_PUBKEY); \
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+ echo maintainer-clean $(REGDB_PUBCERT); \
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fi)
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.PHONY: all clean mrproper install maintainer-clean install-distro-key
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-all: $(REGDB_CHANGED) regulatory.bin sha1sum.txt
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+all: $(REGDB_CHANGED) regulatory.db.p7s sha1sum.txt
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clean:
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@rm -f *.pyc *.gz
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maintainer-clean: clean
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- @rm -f regulatory.bin
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+ @rm -f regulatory.db regulatory.db.p7s
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mrproper: clean maintainer-clean
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- @echo Removed public key, regulatory.bin and compresed man pages
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- @rm -f $(REGDB_PUBKEY) .custom
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+ @echo Removed public key, regulatory.db* and compressed man pages
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+ @rm -f $(REGDB_PUBCERT) .custom
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-regulatory.bin: db.txt $(REGDB_PRIVKEY) $(REGDB_PUBKEY)
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- @echo Generating $@ digitally signed by $(REGDB_AUTHOR)...
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- ./db2bin.py regulatory.bin db.txt $(REGDB_PRIVKEY)
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+regulatory.db: db.txt db2fw.py
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+ @echo "Generating $@"
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+ ./db2fw.py regulatory.db db.txt
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+
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+regulatory.db.p7s: regulatory.db $(REGDB_PRIVKEY) $(REGDB_PUBCERT)
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+ @echo "Signing regulatory.db (by $(REGDB_AUTHOR))..."
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+ @openssl smime -sign \
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+ -signer $(REGDB_PUBCERT) \
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+ -inkey $(REGDB_PRIVKEY) \
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+ -in $< -nosmimecap -binary \
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+ -outform DER -out $@
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sha1sum.txt: db.txt
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sha1sum $< > $@
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-$(REGDB_PUBKEY): $(REGDB_PRIVKEY)
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- @echo "Generating public key for $(REGDB_AUTHOR)..."
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- openssl rsa -in $(REGDB_PRIVKEY) -out $(REGDB_PUBKEY) -pubout -outform PEM
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+$(REGDB_PUBCERT): $(REGDB_PRIVKEY)
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+ @echo "Generating certificate for $(REGDB_AUTHOR)..."
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+ @openssl req -config regulatory.openssl.conf \
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+ -key $(REGDB_PRIVKEY) -days 36500 -utf8 -nodes -batch \
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+ -x509 -outform PEM -out $(REGDB_PUBCERT)
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@echo $(REGDB_PUBKEY) > .custom
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@@ -97,16 +103,7 @@ install-distro-key: maintainer-clean $(D
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# make maintainer-clean
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# make
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# sudo make install
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-install: regulatory.bin.5.gz
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- install -m 755 -d $(DESTDIR)/$(CRDA_PATH)
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- install -m 755 -d $(DESTDIR)/$(CRDA_KEY_PATH)
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- if [ -f .custom ]; then \
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- install -m 644 -t $(DESTDIR)/$(CRDA_KEY_PATH)/ $(shell cat .custom); \
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- fi
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- install -m 644 -t $(DESTDIR)/$(CRDA_KEY_PATH)/ $(REGDB_UPSTREAM_PUBKEY)
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- install -m 644 -t $(DESTDIR)/$(CRDA_PATH)/ regulatory.bin
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+install: regulatory.db.5.gz
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+ install -m 644 -t $(DESTDIR)/$(CRDA_PATH)/ regulatory.db
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install -m 755 -d $(DESTDIR)/$(MANDIR)/man5/
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- install -m 644 -t $(DESTDIR)/$(MANDIR)/man5/ regulatory.bin.5.gz
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-
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-uninstall:
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- rm -rf $(DESTDIR)/$(CRDA_PATH)/
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+ install -m 644 -t $(DESTDIR)/$(MANDIR)/man5/ regulatory.db.5.gz
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--- a/README
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+++ b/README
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@@ -18,8 +18,8 @@ python module is used by the web viewer
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implemented as a MoinMoin macro (and used on http://wireless.kernel.org)
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to allow viewing the database for verification.
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-The dbparse module is also used by db2bin.py, the `compiler', which
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-compiles and signs the binary database.
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+The dbparse module is also used by db2bin.py and db2fw.py, the `compilers'
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+that compile the database to its binary formats.
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For more information, please see the CRDA git repository:
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--- /dev/null
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+++ b/db2fw.py
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@@ -0,0 +1,133 @@
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+#!/usr/bin/env python
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+
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+from cStringIO import StringIO
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+import struct
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+import hashlib
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+from dbparse import DBParser
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+import sys
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+
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+MAGIC = 0x52474442
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+VERSION = 20
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+
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+if len(sys.argv) < 3:
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+ print 'Usage: %s output-file input-file' % sys.argv[0]
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+ sys.exit(2)
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+
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+def create_rules(countries):
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+ result = {}
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+ for c in countries.itervalues():
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+ for rule in c.permissions:
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+ result[rule] = 1
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+ return result.keys()
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+
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+def create_collections(countries):
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+ result = {}
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+ for c in countries.itervalues():
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+ result[(c.permissions, c.dfs_region)] = 1
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+ return result.keys()
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+
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+
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+def be32(output, val):
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+ output.write(struct.pack('>I', val))
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+def be16(output, val):
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+ output.write(struct.pack('>H', val))
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+
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+class PTR(object):
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+ def __init__(self, output):
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+ self._output = output
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+ self._pos = output.tell()
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+ be16(output, 0)
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+ self._written = False
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+
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+ def set(self, val=None):
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+ if val is None:
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+ val = self._output.tell()
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+ assert val & 3 == 0
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+ self._offset = val
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+ pos = self._output.tell()
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+ self._output.seek(self._pos)
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+ be16(self._output, val >> 2)
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+ self._output.seek(pos)
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+ self._written = True
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+
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+ def get(self):
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+ return self._offset
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+
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+ @property
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+ def written(self):
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+ return self._written
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+
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+p = DBParser()
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+countries = p.parse(file(sys.argv[2]))
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+rules = create_rules(countries)
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+rules.sort(cmp=lambda x, y: cmp(x.freqband, y.freqband))
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+collections = create_collections(countries)
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+collections.sort(cmp=lambda x, y: cmp(x[0][0].freqband, y[0][0].freqband))
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+
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+output = StringIO()
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+
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+# struct regdb_file_header
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+be32(output, MAGIC)
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+be32(output, VERSION)
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+
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+country_ptrs = {}
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+countrynames = countries.keys()
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+countrynames.sort()
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+for alpha2 in countrynames:
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+ coll = countries[alpha2]
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+ output.write(struct.pack('>cc', str(alpha2[0]), str(alpha2[1])))
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+ country_ptrs[alpha2] = PTR(output)
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+output.write('\x00' * 4)
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+
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+reg_rules = {}
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+flags = 0
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+for reg_rule in rules:
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+ freq_range, power_rule = reg_rule.freqband, reg_rule.power
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+ reg_rules[reg_rule] = output.tell()
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+ assert power_rule.max_ant_gain == 0
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+ flags = 0
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+ # convert to new rule flags
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+ assert reg_rule.flags & ~0x899 == 0
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+ if reg_rule.flags & 1<<0:
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+ flags |= 1<<0
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+ if reg_rule.flags & 1<<3:
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+ flags |= 1<<1
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+ if reg_rule.flags & 1<<4:
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+ flags |= 1<<2
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+ if reg_rule.flags & 1<<7:
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+ flags |= 1<<3
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+ if reg_rule.flags & 1<<11:
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+ flags |= 1<<4
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+ rule_len = 16
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+ cac_timeout = 0 # TODO
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+ if not (flags & 1<<2):
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+ cac_timeout = 0
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+ if cac_timeout:
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+ rule_len += 2
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+ output.write(struct.pack('>BBHIII', rule_len, flags, power_rule.max_eirp * 100,
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+ freq_range.start * 1000, freq_range.end * 1000, freq_range.maxbw * 1000,
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+ ))
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+ if cac_timeout:
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+ output.write(struct.pack('>H', cac_timeout))
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+ while rule_len % 4:
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+ output.write('\0')
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+ rule_len += 1
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+
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+for coll in collections:
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+ for alpha2 in countrynames:
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+ if (countries[alpha2].permissions, countries[alpha2].dfs_region) == coll:
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+ assert not country_ptrs[alpha2].written
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+ country_ptrs[alpha2].set()
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+ slen = 3
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+ output.write(struct.pack('>BBBx', slen, len(list(coll[0])), coll[1]))
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+ coll = list(coll[0])
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+ for regrule in coll:
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+ be16(output, reg_rules[regrule] >> 2)
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+ if len(coll) % 2:
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+ be16(output, 0)
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+
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+for alpha2 in countrynames:
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+ assert country_ptrs[alpha2].written
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+
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+outfile = open(sys.argv[1], 'w')
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+outfile.write(output.getvalue())
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@ -0,0 +1,16 @@
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Remove the NO-IR flag from channels 36-48 on the World domain,
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to make it usable for AP mode.
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Signed-off-by: Felix Fietkau <nbd@nbd.name>
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---
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--- a/db.txt
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+++ b/db.txt
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@@ -6,7 +6,7 @@ country 00:
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# Channel 14. Only JP enables this and for 802.11b only
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(2474 - 2494 @ 20), (20), NO-IR, NO-OFDM
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# Channel 36 - 48
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- (5170 - 5250 @ 80), (20), NO-IR, AUTO-BW
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+ (5170 - 5250 @ 80), (20), AUTO-BW
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# Channel 52 - 64
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(5250 - 5330 @ 80), (20), NO-IR, DFS, AUTO-BW
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# Channel 100 - 144
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