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#!/usr/bin/env python3
#
# make-pci-ids - Creates a file containing PCI IDs.
# It use the databases from
# https://github.com/pciutils/pciids/raw/master/pci.ids
# to create our file epan/dissectors/pci-ids.c
#
# Wireshark - Network traffic analyzer
#
# By Caleb Chiu <caleb.chiu@macnica.com>
# Copyright 2021
#
# SPDX-License-Identifier: GPL-2.0-or-later
#
import string
import sys
import urllib.request, urllib.error, urllib.parse
OUTPUT_FILE = "epan/pci-ids.c"
MIN_VENDOR_COUNT = 2250 # 2261 on 2021-11-01
MIN_DEVICE_COUNT = 33000 # 33724 on 2021-11-01
CODE_PREFIX = """\
*
* Generated by tools/make-pci-ids.py
* By Caleb Chiu <caleb.chiu@macnica.com>
* Copyright 2021
*
*
* SPDX-License-Identifier: GPL-2.0-or-later
*/
#include <config.h>
#include <stddef.h>
#include "pci-ids.h"
typedef struct
{
uint16_t vid;
uint16_t did;
uint16_t svid;
uint16_t ssid;
const char *name;
} pci_id_t;
typedef struct
{
uint16_t vid;
uint16_t count;
pci_id_t const *ids_ptr;
} pci_vid_index_t;
"""
CODE_POSTFIX = """
static pci_vid_index_t const *get_vid_index(uint16_t vid)
{
uint32_t start_index = 0;
uint32_t end_index = 0;
uint32_t idx = 0;
end_index = sizeof(pci_vid_index)/sizeof(pci_vid_index[0]);
while(start_index != end_index)
{
if(end_index - start_index == 1)
{
if(pci_vid_index[start_index].vid == vid)
return &pci_vid_index[start_index];
break;
}
idx = (start_index + end_index)/2;
if(pci_vid_index[idx].vid < vid)
start_index = idx;
else
if(pci_vid_index[idx].vid > vid)
end_index = idx;
else
return &pci_vid_index[idx];
}
return NULL;
}
const char *pci_id_str(uint16_t vid, uint16_t did, uint16_t svid, uint16_t ssid)
{
unsigned int i;
static const char *not_found = \"Not found\";
pci_vid_index_t const *index_ptr;
pci_id_t const *ids_ptr;
index_ptr = get_vid_index(vid);
if(index_ptr == NULL)
return not_found;
ids_ptr = index_ptr->ids_ptr;
for(i = 0; i < index_ptr->count; ids_ptr++, i++)
if(vid == ids_ptr->vid &&
did == ids_ptr->did &&
svid == ids_ptr->svid &&
ssid == ids_ptr->ssid)
return ids_ptr->name;
return not_found;
}
"""
id_list=[]
count_list=[]
def exit_msg(msg=None, status=1):
if msg is not None:
sys.stderr.write(msg + '\n')
sys.exit(status)
def main():
req_headers = { 'User-Agent': 'Wireshark make-pci-ids' }
req = urllib.request.Request('https://github.com/pciutils/pciids/raw/master/pci.ids', headers=req_headers)
response = urllib.request.urlopen(req)
lines = response.read().decode('UTF-8', 'replace').splitlines()
out_lines = '''\
/* pci-ids.c
*
* pci-ids.c is based on the pci.ids of The PCI ID Repository at
* https://pci-ids.ucw.cz/, fetched indirectly via
* https://github.com/pciutils/pciids
'''
vid = -1
did = -1
svid = -1
entries = 0
line_num = 0
for line in lines:
line = line.strip('\n')
line_num += 1
if line_num <= 15:
line = line.replace('#', ' ', 1)
line = line.lstrip()
line = line.replace("GNU General Public License", "GPL")
if line:
line = ' * ' + line
else:
line = ' *' + line
out_lines += line + '\n'
if line_num == 15:
out_lines += CODE_PREFIX
line = line.replace("\\","\\\\")
line = line.replace("\"","\\\"")
line = line.replace("?","?-")
tabs = len(line) - len(line.lstrip('\t'))
if tabs == 0:
#print line
words = line.split(" ", 1)
if len(words) < 2:
continue
if len(words[0]) != 4:
continue
if all(c in string.hexdigits for c in words[0]):
hex_int = int(words[0], 16)
if vid != -1:
out_lines += "}; /* pci_vid_%04X[] */\n\n" % (vid)
count_list.append(entries)
vid = hex_int
entries = 1
did = -1
svid = -1
ssid = -1
out_lines += "static pci_id_t const pci_vid_%04X[] = {\n" % (vid)
out_lines += "{0x%04X, 0xFFFF, 0xFFFF, 0xFFFF, \"%s(0x%04X)\"},\n" % (vid, words[1].strip(), vid)
id_list.append(vid)
continue
if tabs == 1:
line = line.strip('\t')
words = line.split(" ", 1)
if len(words) < 2:
continue
if len(words[0]) != 4:
continue
if all(c in string.hexdigits for c in words[0]):
hex_int = int(words[0], 16)
did = hex_int
svid = -1
ssid = -1
out_lines += "{0x%04X, 0x%04X, 0xFFFF, 0xFFFF, \"%s(0x%04X)\"},\n" % (vid, did, words[1].strip(), did)
entries += 1
continue
if tabs == 2:
line = line.strip('\t')
words = line.split(" ", 2)
if len(words[0]) != 4:
continue
if all(c in string.hexdigits for c in words[0]):
hex_int = int(words[0], 16)
svid = hex_int
if all(c in string.hexdigits for c in words[1]):
hex_int = int(words[1], 16)
ssid = hex_int
out_lines += "{0x%04X, 0x%04X, 0x%04X, 0x%04X, \"%s(0x%04X-0x%04X)\"},\n" % (vid, did, svid, ssid, words[2].strip(), svid, ssid)
entries += 1
svid = -1
ssid = -1
continue
out_lines += "}; /* pci_vid_%04X[] */\n" % (vid)
count_list.append(entries)
out_lines += "\nstatic pci_vid_index_t const pci_vid_index[] = {\n"
vendor_count = len(id_list)
device_count = 0
for i in range(vendor_count):
out_lines += "{0x%04X, %d, pci_vid_%04X },\n" % (id_list[i], count_list[i], id_list[i])
device_count += count_list[i]
out_lines += "}; /* We have %d VIDs */\n" % (vendor_count)
out_lines += CODE_POSTFIX
if vendor_count < MIN_VENDOR_COUNT:
exit_msg(f'Too few vendors. Wanted {MIN_VENDOR_COUNT}, got {vendor_count}.')
if device_count < MIN_DEVICE_COUNT:
exit_msg(f'Too few devices. Wanted {MIN_DEVICE_COUNT}, got {device_count}.')
with open(OUTPUT_FILE, "w", encoding="utf-8") as pci_ids_f:
pci_ids_f.write(out_lines)
if __name__ == '__main__':
main()
|
