#define GNUPGPREFIX "[GNUPG:]"
#define GNUPGBADSIG "[GNUPG:] BADSIG"
+#define GNUPGERRSIG "[GNUPG:] ERRSIG"
#define GNUPGNOPUBKEY "[GNUPG:] NO_PUBKEY"
#define GNUPGVALIDSIG "[GNUPG:] VALIDSIG"
#define GNUPGGOODSIG "[GNUPG:] GOODSIG"
Trusted,
} state;
char name[32];
+
+ State getState() const {
+ std::string optionUntrusted;
+ std::string optionWeak;
+ strprintf(optionUntrusted, "APT::Hashes::%s::Untrusted", name);
+ strprintf(optionWeak, "APT::Hashes::%s::Weak", name);
+ if (_config->FindB(optionUntrusted, state == State::Untrusted) == true)
+ return State::Untrusted;
+ if (_config->FindB(optionWeak, state == State::Weak) == true)
+ return State::Weak;
+
+ return state;
+ }
};
static constexpr Digest Digests[] = {
std::string key;
std::string note;
};
+static bool IsTheSameKey(std::string const &validsig, std::string const &goodsig) {
+ // VALIDSIG reports a keyid (40 = 24 + 16), GOODSIG is a longid (16) only
+ return validsig.compare(24, 16, goodsig, strlen("GOODSIG "), 16) == 0;
+}
class GPGVMethod : public aptMethod
{
protected:
virtual bool URIAcquire(std::string const &Message, FetchItem *Itm) APT_OVERRIDE;
public:
-
GPGVMethod() : aptMethod("gpgv","1.0",SingleInstance | SendConfig) {};
};
// Loop over the output of apt-key (which really is gnupg), and check the signatures.
std::vector<std::string> ValidSigners;
+ std::vector<std::string> ErrSigners;
size_t buffersize = 0;
char *buffer = NULL;
while (1)
std::clog << "Got BADSIG! " << std::endl;
BadSigners.push_back(string(buffer+sizeof(GNUPGPREFIX)));
}
+ else if (strncmp(buffer, GNUPGERRSIG, sizeof(GNUPGERRSIG)-1) == 0)
+ {
+ if (Debug == true)
+ std::clog << "Got ERRSIG " << std::endl;
+ ErrSigners.push_back(string(buffer, strlen(GNUPGPREFIX), strlen("ERRSIG ") + 16));
+ }
else if (strncmp(buffer, GNUPGNOPUBKEY, sizeof(GNUPGNOPUBKEY)-1) == 0)
{
if (Debug == true)
std::clog << "Got NO_PUBKEY " << std::endl;
NoPubKeySigners.push_back(string(buffer+sizeof(GNUPGPREFIX)));
+ ErrSigners.erase(std::remove_if(ErrSigners.begin(), ErrSigners.end(), [&](std::string const &errsig) {
+ return errsig.compare(strlen("ERRSIG "), 16, buffer, strlen(GNUPGNOPUBKEY), 16) == 0; }), ErrSigners.end());
}
else if (strncmp(buffer, GNUPGNODATA, sizeof(GNUPGBADSIG)-1) == 0)
{
while (*p && isxdigit(*p))
p++;
*p = 0;
- if (Debug == true)
- std::clog << "Got VALIDSIG, key ID: " << sig << std::endl;
// Reject weak digest algorithms
Digest digest = FindDigest(tokens[7]);
- switch (digest.state) {
+ switch (digest.getState()) {
case Digest::State::Weak:
// Treat them like an expired key: For that a message about expiry
// is emitted, a VALIDSIG, but no GOODSIG.
SoonWorthlessSigners.push_back({string(sig), digest.name});
+ if (Debug == true)
+ std::clog << "Got weak VALIDSIG, key ID: " << sig << std::endl;
break;
case Digest::State::Untrusted:
// Treat them like an expired key: For that a message about expiry
// is emitted, a VALIDSIG, but no GOODSIG.
WorthlessSigners.push_back(string(sig));
- GoodSigners.erase(std::remove(GoodSigners.begin(), GoodSigners.end(), string(sig)));
+ GoodSigners.erase(std::remove_if(GoodSigners.begin(), GoodSigners.end(), [&](std::string const &goodsig) {
+ return IsTheSameKey(string(sig), goodsig); }), GoodSigners.end());
+ if (Debug == true)
+ std::clog << "Got untrusted VALIDSIG, key ID: " << sig << std::endl;
break;
- case Digest::State::Trusted:
+
+ case Digest::State::Trusted:
+ if (Debug == true)
+ std::clog << "Got trusted VALIDSIG, key ID: " << sig << std::endl;
break;
}
}
fclose(pipein);
free(buffer);
+ std::move(ErrSigners.begin(), ErrSigners.end(), std::back_inserter(WorthlessSigners));
// apt-key has a --keyid parameter, but this requires gpg, so we call it without it
// and instead check after the fact which keyids where used for verification
{
ioprintf(std::clog, "gpgv exited with status %i\n", WEXITSTATUS(status));
}
-
+
+ if (Debug)
+ {
+ std::cerr << "Summary:" << std::endl << " Good: ";
+ std::copy(GoodSigners.begin(), GoodSigners.end(), std::ostream_iterator<std::string>(std::cerr, ", "));
+ std::cerr << std::endl << " Bad: ";
+ std::copy(BadSigners.begin(), BadSigners.end(), std::ostream_iterator<std::string>(std::cerr, ", "));
+ std::cerr << std::endl << " Worthless: ";
+ std::copy(WorthlessSigners.begin(), WorthlessSigners.end(), std::ostream_iterator<std::string>(std::cerr, ", "));
+ std::cerr << std::endl << " SoonWorthless: ";
+ std::for_each(SoonWorthlessSigners.begin(), SoonWorthlessSigners.end(), [](Signer const &sig) { std::cerr << sig.key << ", "; });
+ std::cerr << std::endl << " NoPubKey: ";
+ std::copy(NoPubKeySigners.begin(), NoPubKeySigners.end(), std::ostream_iterator<std::string>(std::cerr, ", "));
+ std::cerr << std::endl;
+ }
+
if (WEXITSTATUS(status) == 0)
{
if (keyIsID)
GoodSigners, BadSigners, WorthlessSigners,
SoonWorthlessSigners, NoPubKeySigners);
-
- // Check if there are any good signers that are not soon worthless
- std::vector<std::string> NotWarnAboutSigners(GoodSigners);
- for (auto const & Signer : SoonWorthlessSigners)
- NotWarnAboutSigners.erase(std::remove(NotWarnAboutSigners.begin(), NotWarnAboutSigners.end(), "GOODSIG " + Signer.key));
- // If all signers are soon worthless, report them.
- if (NotWarnAboutSigners.empty()) {
+ // Check if all good signers are soon worthless and warn in that case
+ if (std::all_of(GoodSigners.begin(), GoodSigners.end(), [&](std::string const &good) {
+ return std::any_of(SoonWorthlessSigners.begin(), SoonWorthlessSigners.end(), [&](Signer const &weak) {
+ return IsTheSameKey(weak.key, good);
+ });
+ }))
+ {
for (auto const & Signer : SoonWorthlessSigners)
// TRANSLATORS: The second %s is the reason and is untranslated for repository owners.
- Warning(_("Weak signature from %s (%s)"), Signer.key.c_str(), Signer.note.c_str());
+ Warning(_("Signature by key %s uses weak digest algorithm (%s)"), Signer.key.c_str(), Signer.note.c_str());
}
if (GoodSigners.empty() || !BadSigners.empty() || !NoPubKeySigners.empty())
projects / apt.git / blobdiff