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hax-driver.py
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hax-driver.py
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#! /usr/bin/env python3
import os
import argparse
import subprocess
import sys
def shell(command, expect=0, cwd=None, env={}):
subprocess_stdout = subprocess.DEVNULL
print("Env:", env)
print("Command: ", end="")
for i, word in enumerate(command):
if i == 4:
print("'{}' ".format(word), end="")
else:
print("{} ".format(word), end="")
print("\nDirectory: {}".format(cwd))
os_env = os.environ
os_env.update(env)
ret = subprocess.run(command, cwd=cwd, env=os_env)
if ret.returncode != expect:
raise Exception("Error {}. Expected {}.".format(ret, expect))
parser = argparse.ArgumentParser(description="Perform proofs using Hax.")
sub_parser = parser.add_subparsers(
description="Extract or typecheck",
dest="sub",
help="Extract and typecheck F* etc. from the Bertie Rust code.",
)
extract_parser = sub_parser.add_parser("extract-fstar")
extract_proverif_parser = sub_parser.add_parser("extract-proverif")
typecheck_parser = sub_parser.add_parser("typecheck")
patch_proverif_parser = sub_parser.add_parser("patch-proverif")
typecheck_proverif_parser = sub_parser.add_parser("typecheck-proverif")
typecheck_parser.add_argument(
"--lax",
action="store_true",
dest="lax",
help="Lax typecheck the code only",
)
typecheck_parser.add_argument(
"--admit",
action="store_true",
dest="admit",
help="Set admit_smt_queries to true for typechecking",
)
typecheck_parser.add_argument(
"--clean",
action="store_true",
dest="clean",
help="Clean before calling make",
)
options = parser.parse_args()
cargo_hax_into = [
"cargo",
"hax",
"-C",
"-p",
"bertie",
"-p",
"rand_core",
"--no-default-features",
";",
"into",
]
cargo_hax_into_pv = [
"cargo",
"hax",
"-C",
"-p",
"bertie",
"--no-default-features",
"--features",
"hax-pv",
";",
"into",
]
hax_env = {}
if options.sub == "extract-fstar":
# The extract sub command.
shell(
cargo_hax_into
+ [
"-i",
"-**::non_hax::** -bertie::stream::**",
"fstar",
"--interfaces",
"+** +!bertie::tls13crypto::** +!bertie::tls13utils::**"
],
cwd=".",
env=hax_env,
)
elif options.sub == "extract-handshake":
# The extract sub command.
shell(
cargo_hax_into
+ [
"-i",
"-** +~bertie::tls13handshake::**",
"fstar",
"--interfaces",
"+!** +bertie::tls13handshake::**"
],
cwd=".",
env=hax_env,
)
elif options.sub == "extract-proverif":
# The extract sub command.
shell(
cargo_hax_into_pv
+ [
"-i",
" ".join([
"-**",
"+~**::tls13handshake::**",
"+~**::server::lookup_db", # to include transitive dependency on tls13utils
"+~**::tls13utils::parse_failed", # transitive dependencies required
"+~**::tls13crypto::zero_key", # transitive dependencies required
]),
"pro-verif",
],
cwd=".",
env=hax_env,
)
elif options.sub == "typecheck":
# Typecheck subcommand.
custom_env = {}
if options.lax:
custom_env.update({"OTHERFLAGS": "--lax"})
if options.admit:
custom_env.update({"OTHERFLAGS": "--admit_smt_queries true"})
if options.clean:
shell(["make", "-C", "proofs/fstar/extraction/", "clean"])
shell(["make", "-C", "proofs/fstar/extraction/"], env=custom_env)
exit(0)
elif options.sub == "patch-proverif":
custom_env = {}
shell(["patch", "proofs/proverif/extraction/lib.pvl", "proofs/proverif/patches/lib.patch"], env=custom_env)
shell(["patch", "proofs/proverif/extraction/analysis.pv", "proofs/proverif/patches/analysis.patch"], env=custom_env)
exit(0)
elif options.sub == "typecheck-proverif":
# Typecheck subcommand.
custom_env = {}
shell(["proverif", "-lib", "proofs/proverif/handwritten_lib", "-lib", "proofs/proverif/extraction/lib", "proofs/proverif/extraction/analysis.pv"], env=custom_env)
exit(0)
else:
parser.print_help()
exit(2)