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generateLocalFiles.py
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generateLocalFiles.py
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#!/usr/bin/python
import os,sys
import json
import termios
import re
from stat import *
import base64
#generate regFiles , FdInfo , fs
PATH = os.getcwd()
inputFile = open(PATH+ "/procfiles.json","r")
str_json = inputFile.read()
data = json.loads(str_json)
dataJson = { "magic":"REG_FILES" }
#fdType= ["UND","REG","PIPE","FIFO","INETSK","UNIXSK","EVENTFD","EVENTPOLL","INOTIFY","SIGNALFD",
# "PACKETSK","TTY","FANOTIFY","NETLINKSK","NS","TUNF","EXT","TIMERFD"]
PID = data["pid"]
threads = data["threads"]
data.pop("threads",None)
data.pop("pid", None)
if "sockets" in data:
data.pop("sockets",None)
maxId =0
for single_file in data["entries"]:
if single_file["type"]=="extracted" or single_file["type"]=="elf":
new_name = single_file["name"].split("/")
new_name_n = PATH + "/" + new_name[len(new_name)-1]
single_file["name"]=new_name_n
if not os.path.isfile(single_file["name"]):
print "Unable to locate file: "+single_file["name"]
exit()
single_file["flags"]=""
single_file["pos"]=0
fownJsonZero = {"uid": 0, "euid": 0, "signum": 0, "pid_type": 0, "pid": 0 }
single_file["fown"]= fownJsonZero
size = os.path.getsize(single_file["name"])
single_file["size"]=size
if single_file["type"]=="extracted":
single_file["pos"]= single_file["size"]
single_file["flags"]="O_LARGEFILE"
single_file.pop("type",None)
if single_file["id"]> maxId:
maxId = single_file["id"]
wkJson= { "id":maxId+1, "flags":"", "pos":0, "fown": fownJsonZero ,"name":PATH }
data["entries"].append(wkJson)
rootJson = { "id":maxId+2, "flags":"", "pos":0, "fown": fownJsonZero ,"name":"/"}
data["entries"].append(rootJson)
ptsJson = { "id":1 , "flags":"O_RDWR | O_LARGEFILE", "pos":0, "fown": fownJsonZero, "name":os.popen("tty").read().rstrip('\n') }
data["entries"].append(ptsJson)
dataJson.update(data)
#generation reg-files
outputFile = open(PATH+ "/reg-files.json","w")
outputFile.write(json.dumps(dataJson , indent=4 , sort_keys=False))
outputFile.close()
inputFile.close()
#generation fs.img
fsJson= {"magic":"FS", "entries":[{"cwd_id":wkJson["id"], "root_id":rootJson["id"], "umask":0}]}
maskmode = oct(os.stat("/")[ST_MODE])[-3:]
umask= int(str(7 - int(maskmode[0]))+str(7-int(maskmode[1]))+str(7-int(maskmode[2])))
fsJson["entries"][0]["umask"]=umask
fsFile = open("fs-"+PID+".json", "w")
fsFile.write(json.dumps(fsJson,indent=4, sort_keys = False))
fsFile.close()
#generation tty.img
ttyJson = {"magic": "TTY_FILES", "entries": [{"id": 1, "tty_info_id": 0, "flags": "0x8002", "fown": fownJsonZero}]}
ttyFile = open("tty.json","w")
ttyFile.write(json.dumps(ttyJson,indent=4, sort_keys = False))
ttyFile.close()
#generation tty__info.img
fdtty = sys.stdin.fileno()
ottyattr = termios.tcgetattr(fdtty)
rows_terminal, col_terminal = os.popen('stty size', 'r').read().split()
frdev= open(ptsJson["name"],"r")
rdev = int(os.fstat(frdev.fileno()).st_rdev)
frdev.close()
tty_infoJson= {
"magic": "TTY_INFO",
"entries": [
{
"id": 0,
"type": "PTY",
"locked": False,
"exclusive": False,
"packet_mode": False,
"sid": 0 ,
"pgrp": 0,
"rdev": rdev,
"termios": {
"c_iflag": ottyattr[0], #[0]
"c_oflag": ottyattr[1], #[1]
"c_cflag": ottyattr[2], #[2]
"c_lflag": ottyattr[3], #[3]
"c_line": 0,
"c_ispeed": ottyattr[4], #[4]
"c_ospeed": ottyattr[5], #[5]
"c_cc": [ #[6]
360651779,
4278255620,
4279898897,
370609938,
255,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0
]
},
"termios_locked": {
"c_iflag": 0,
"c_oflag": 0,
"c_cflag": 0,
"c_lflag": 0,
"c_line": 0,
"c_ispeed": 0,
"c_ospeed": 0,
"c_cc": [
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0
]
},
"winsize": {
"ws_row": int(rows_terminal)-1,
"ws_col": int(col_terminal)-1,
"ws_xpixel": 0,
"ws_ypixel": 0
},
"pty": {
"index": 0
},
"dev": 12
}
]
}
ttyinfoFile = open("tty-info.json","w")
ttyinfoFile.write(json.dumps(tty_infoJson,indent=4, sort_keys = False))
ttyinfoFile.close()
#generation inventory.json
inventoryJson = {
"magic": "INVENTORY",
"entries": [
{
"img_version": 2,
"fdinfo_per_id": True,
"root_ids": {
"vm_id": 1,
"files_id": 1,
"fs_id": 1,
"sighand_id": 1,
"pid_ns_id": 1,
"net_ns_id": 2,
"ipc_ns_id": 3,
"uts_ns_id": 4,
"mnt_ns_id": 5,
"user_ns_id": 6
},
"ns_per_id": True,
"root_cg_set": 1
}
]
}
inventoryFile = open("inventory.json","w")
inventoryFile.write(json.dumps(inventoryJson,indent=4, sort_keys = False))
inventoryFile.close()
#generation ids.json
idsJson = {
"magic": "IDS",
"entries": [
{
"vm_id": 2,
"files_id": 2,
"fs_id": 2,
"sighand_id": 2,
"pid_ns_id": 1,
"net_ns_id": 2,
"ipc_ns_id": 3,
"uts_ns_id": 4,
"mnt_ns_id": 5,
"user_ns_id": 6
}
]
}
idsFile = open("ids-"+PID+".json","w")
idsFile.write(json.dumps(idsJson,indent=4, sort_keys = False))
idsFile.close()
#generation rlimits for core-{pid}.json
limits = os.popen("cat /proc/1/limits").readlines()
rlimitsJson = {"rlimits":[] }
for line in limits:
if "Units" in line:
continue
new_line = re.sub(' +',' ',line)
fieldslim = new_line.split(" ")
if "priority" in new_line:
f1 = fieldslim[len(fieldslim)-2]
f2 = fieldslim[len(fieldslim)-3]
else:
f1 = fieldslim[len(fieldslim)-3]
f2 = fieldslim[len(fieldslim)-4]
if f1 == "unlimited":
f1="18446744073709551615"
if f2 == "unlimited":
f2="18446744073709551615"
rlimitsJson["rlimits"].append({"cur":int(str(f2)),"max":int(str(f1))})
# append rlimits for process pid
coreFile = open("core-"+PID+".json","r")
strcore_json = coreFile.read()
dataCore = json.loads(strcore_json)
dataCore["entries"][0]["tc"]["rlimits"]=rlimitsJson
coreFile.close()
coreFile = open("core-"+PID+".json","w")
coreFile.write(json.dumps(dataCore,indent=4, sort_keys = False))
coreFile.close()
# append fown in inetsk.json
inputFileinetsk = open(PATH+ "/inetsk.json","r")
inetstr = inputFileinetsk.read()
inetJson = json.loads(inetstr)
for d in inetJson["entries"]:
d["fown"] = fownJsonZero
inputFileinetsk.close()
inputFileinetsk = open(PATH+ "/inetsk.json","w")
inputFileinetsk.write(json.dumps(inetJson,indent=4, sort_keys = False))
inputFileinetsk.close()
# append fown and file perms in unixsk.json
inputFileunixsk = open(PATH+ "/unixsk.json","r")
inetstr = inputFileunixsk.read()
inetJson = json.loads(inetstr)
for d in inetJson["entries"]:
d["fown"] = fownJsonZero
if d["name"] != "\n":
d["file_perms"] = {"mode":49645, "uid":0, "gid":0}
#we remove pairs ino->peer in order to start again the server with no open connections
arr_delete = []
fd_delete =[]
for d in inetJson["entries"]:
if d["uflags"]=="0x0" and d["name"] != "" and d["peer"]!= 0 :
arr_delete.append(d["ino"])
arr_delete.append(d["peer"])
fd_delete.append(int(d["id"])+1)
newinetJson = []
for d in inetJson["entries"]:
if d["ino"] not in arr_delete:
newinetJson.append(d)
inetJson["entries"]= newinetJson
inputFileunixsk.close()
inputFileunixsk = open(PATH+ "/unixsk.json","w")
inputFileunixsk.write(json.dumps(inetJson,indent=4, sort_keys = False))
inputFileunixsk.close()
#remove fd unixsk opened connection
fdinfoFile = open(PATH+ "/fdinfo-2.json","r")
fdinfostr = fdinfoFile.read()
fdinfoJson = json.loads(fdinfostr)
fdinfoFile.close()
newfdJson = []
for d in fdinfoJson["entries"]:
if d["type"]=="UNIXSK" and d["fd"] in fd_delete:
continue
else:
newfdJson.append(d)
fdinfoJson["entries"]=newfdJson
fdinfoFile = open(PATH+ "/fdinfo-2.json","w")
fdinfoFile.write(json.dumps(fdinfoJson,indent=4, sort_keys = False))
fdinfoFile.close()