monotone

Review 1: Make monotone compile against botan 1.10.1.

Created:2011-09-07 19:44:31 (12 years 7 months ago)
Updated:10 years 6 months ago
Author:Martin von Gagern
Commit:7cbb20501714be7f25f30734da82d41c7ac427ca
Description:Make monotone compile against botan 1.10.1.

This should fix the compile time errors occurring when building against botan starting with version 1.9.11. It addresses issue 182.
Reviewers:No reviewers at the moment.
Files: src/database.cc (2 diffs)
src/packet.cc (1 diff)
src/key_store.cc (2 diffs)
src/sha1.cc (1 diff)
src/ssh_agent.cc (1 diff)
src/gzip.cc (6 diffs)
src/gzip.hh (3 diffs)
src/key_packet.cc (1 diff)
 Archive Download the corresponding diff file
src/database.cc
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imp->execute(query("DELETE FROM public_keys WHERE id = ?")␊
% blob(pub_id.inner()()));␊
}␊
␊
void␊
database::encrypt_rsa(key_id const & pub_id,␊
string const & plaintext,␊
rsa_oaep_sha_data & ciphertext)␊
{␊
MM(pub_id);␊
rsa_pub_key pub;␊
get_key(pub_id, pub);␊
␊
SecureVector<Botan::byte> pub_block;␊
pub_block.set(reinterpret_cast<Botan::byte const *>(pub().data()),␊
pub().size());␊
␊
shared_ptr<X509_PublicKey> x509_key(Botan::X509::load_key(pub_block));␊
shared_ptr<RSA_PublicKey> pub_key␊
= shared_dynamic_cast<RSA_PublicKey>(x509_key);␊
if (!pub_key)␊
throw recoverable_failure(origin::system,␊
"Failed to get RSA encrypting key");␊
␊
shared_ptr<PK_Encryptor>␊
encryptor(get_pk_encryptor(*pub_key, "EME1(SHA-1)"));␊
␊
SecureVector<Botan::byte> ct;␊
␊
rsa_sha1_signature const & signature)␊
{␊
MM(id);␊
MM(alleged_text);␊
shared_ptr<PK_Verifier> verifier;␊
␊
verifier_cache::const_iterator i = imp->verifiers.find(id);␊
if (i != imp->verifiers.end())␊
verifier = i->second.first;␊
␊
else␊
{␊
rsa_pub_key pub;␊
SecureVector<Botan::byte> pub_block;␊
␊
if (!public_key_exists(id))␊
return cert_unknown;␊
␊
get_key(id, pub);␊
pub_block.set(reinterpret_cast<Botan::byte const *>(pub().data()),␊
pub().size());␊
␊
L(FL("building verifier for %d-byte pub key") % pub_block.size());␊
shared_ptr<X509_PublicKey> x509_key(Botan::X509::load_key(pub_block));␊
shared_ptr<RSA_PublicKey> pub_key␊
= boost::shared_dynamic_cast<RSA_PublicKey>(x509_key);␊
␊
E(pub_key, id.inner().made_from,␊
F("failed to get RSA verifying key for %s") % id);␊
␊
verifier.reset(get_pk_verifier(*pub_key, "EMSA3(SHA-1)"));␊
␊
/* XXX This is ugly. We need to keep the key around␊
* as long as the verifier is around, but the shared_ptr will go␊
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imp->execute(query("DELETE FROM public_keys WHERE id = ?")␊
% blob(pub_id.inner()()));␊
}␊
␊
void␊
database::encrypt_rsa(key_id const & pub_id,␊
string const & plaintext,␊
rsa_oaep_sha_data & ciphertext)␊
{␊
MM(pub_id);␊
rsa_pub_key pub;␊
get_key(pub_id, pub);␊
␊
SecureVector<Botan::byte> pub_block␊
(reinterpret_cast<Botan::byte const *>(pub().data()), pub().size());␊
␊
shared_ptr<X509_PublicKey> x509_key(Botan::X509::load_key(pub_block));␊
shared_ptr<RSA_PublicKey> pub_key␊
= shared_dynamic_cast<RSA_PublicKey>(x509_key);␊
if (!pub_key)␊
throw recoverable_failure(origin::system,␊
"Failed to get RSA encrypting key");␊
␊
shared_ptr<PK_Encryptor>␊
encryptor(get_pk_encryptor(*pub_key, "EME1(SHA-1)"));␊
␊
SecureVector<Botan::byte> ct;␊
␊
rsa_sha1_signature const & signature)␊
{␊
MM(id);␊
MM(alleged_text);␊
shared_ptr<PK_Verifier> verifier;␊
␊
verifier_cache::const_iterator i = imp->verifiers.find(id);␊
if (i != imp->verifiers.end())␊
verifier = i->second.first;␊
␊
else␊
{␊
rsa_pub_key pub;␊
␊
if (!public_key_exists(id))␊
return cert_unknown;␊
␊
get_key(id, pub);␊
SecureVector<Botan::byte> pub_block␊
(reinterpret_cast<Botan::byte const *>(pub().data()), pub().size());␊
␊
L(FL("building verifier for %d-byte pub key") % pub_block.size());␊
shared_ptr<X509_PublicKey> x509_key(Botan::X509::load_key(pub_block));␊
shared_ptr<RSA_PublicKey> pub_key␊
= boost::shared_dynamic_cast<RSA_PublicKey>(x509_key);␊
␊
E(pub_key, id.inner().made_from,␊
F("failed to get RSA verifying key for %s") % id);␊
␊
verifier.reset(get_pk_verifier(*pub_key, "EMSA3(SHA-1)"));␊
␊
/* XXX This is ugly. We need to keep the key around␊
* as long as the verifier is around, but the shared_ptr will go␊
src/packet.cc
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made_from,␊
F("malformed packet: invalid base64 block"));␊
}␊
void validate_key(string const & k) const␊
{␊
E(!k.empty()␊
&& k.find_first_not_of(constants::legal_key_name_bytes) == string::npos,␊
made_from,␊
F("malformed packet: invalid key name"));␊
}␊
void validate_public_key_data(string const & name, string const & keydata) const␊
{␊
string decoded = decode_base64_as<string>(keydata, origin::user);␊
Botan::SecureVector<Botan::byte> key_block;␊
key_block.set(reinterpret_cast<Botan::byte const *>(decoded.c_str()), decoded.size());␊
try␊
{␊
Botan::X509::load_key(key_block);␊
}␊
catch (Botan::Decoding_Error const & e)␊
{␊
E(false, origin::user,␊
F("malformed packet: invalid public key data for '%s': %s")␊
% name % e.what());␊
}␊
}␊
void validate_private_key_data(string const & name, string const & keydata) const␊
{␊
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made_from,␊
F("malformed packet: invalid base64 block"));␊
}␊
void validate_key(string const & k) const␊
{␊
E(!k.empty()␊
&& k.find_first_not_of(constants::legal_key_name_bytes) == string::npos,␊
made_from,␊
F("malformed packet: invalid key name"));␊
}␊
void validate_public_key_data(string const & name, string const & keydata) const␊
{␊
string decoded = decode_base64_as<string>(keydata, origin::user);␊
Botan::SecureVector<Botan::byte> key_block␊
(reinterpret_cast<Botan::byte const *>(decoded.c_str()), decoded.size());␊
try␊
{␊
Botan::X509::load_key(key_block);␊
}␊
catch (Botan::Decoding_Error const & e)␊
{␊
E(false, origin::user,␊
F("malformed packet: invalid public key data for '%s': %s")␊
% name % e.what());␊
}␊
}␊
void validate_private_key_data(string const & name, string const & keydata) const␊
{␊
src/key_store.cc
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string sig_string;␊
ssh_agent & agent = s->get_agent();␊
␊
//sign with ssh-agent (if connected)␊
E(agent.connected() || s->ssh_sign_mode != "only", origin::user,␊
F("you have chosen to sign only with ssh-agent but ssh-agent"␊
" does not seem to be running"));␊
if (s->ssh_sign_mode == "yes"␊
|| s->ssh_sign_mode == "check"␊
|| s->ssh_sign_mode == "only")␊
{␊
if (agent.connected()) {␊
//grab the monotone public key as an RSA_PublicKey␊
SecureVector<Botan::byte> pub_block;␊
pub_block.set(reinterpret_cast<Botan::byte const *>(key.pub().data()),␊
key.pub().size());␊
L(FL("make_signature: building %d-byte pub key") % pub_block.size());␊
shared_ptr<X509_PublicKey> x509_key =␊
shared_ptr<X509_PublicKey>(Botan::X509::load_key(pub_block));␊
shared_ptr<RSA_PublicKey> pub_key = shared_dynamic_cast<RSA_PublicKey>(x509_key);␊
␊
if (!pub_key)␊
throw recoverable_failure(origin::system,␊
"Failed to get monotone RSA public key");␊
␊
agent.sign_data(*pub_key, tosign, sig_string);␊
}␊
if (sig_string.length() <= 0)␊
L(FL("make_signature: monotone and ssh-agent keys do not match, will"␊
// See whether a lua hook will tell us the passphrase.␊
key_identity_info identity;␊
identity.given_name = id;␊
string lua_phrase;␊
if (lua.hook_get_passphrase(identity, lua_phrase))␊
phrase = utf8(lua_phrase, origin::user);␊
else␊
get_passphrase(phrase, id, key_id(), false, false);␊
␊
int cycles = 1;␊
for (;;)␊
try␊
{␊
arc4_key.set(reinterpret_cast<Botan::byte const *>(phrase().data()),␊
phrase().size());␊
␊
Pipe arc4_decryptor(get_cipher("ARC4", arc4_key, Botan::DECRYPTION));␊
␊
arc4_decryptor.process_msg(old_priv());␊
␊
// This is necessary because PKCS8::load_key() cannot currently␊
// recognize an unencrypted, raw-BER blob as such, but gets it␊
// right if it's PEM-coded.␊
SecureVector<Botan::byte> arc4_decrypt(arc4_decryptor.read_all());␊
Botan::DataSource_Memory ds(Botan::PEM_Code::encode(arc4_decrypt,␊
"PRIVATE KEY"));␊
#if BOTAN_VERSION_CODE >= BOTAN_VERSION_CODE_FOR(1,7,7)␊
pkcs8_key.reset(Botan::PKCS8::load_key(ds, lazy_rng::get()));␊
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string sig_string;␊
ssh_agent & agent = s->get_agent();␊
␊
//sign with ssh-agent (if connected)␊
E(agent.connected() || s->ssh_sign_mode != "only", origin::user,␊
F("you have chosen to sign only with ssh-agent but ssh-agent"␊
" does not seem to be running"));␊
if (s->ssh_sign_mode == "yes"␊
|| s->ssh_sign_mode == "check"␊
|| s->ssh_sign_mode == "only")␊
{␊
if (agent.connected()) {␊
//grab the monotone public key as an RSA_PublicKey␊
SecureVector<Botan::byte> pub_block␊
(reinterpret_cast<Botan::byte const *>(key.pub().data()),␊
key.pub().size());␊
L(FL("make_signature: building %d-byte pub key") % pub_block.size());␊
shared_ptr<X509_PublicKey> x509_key =␊
shared_ptr<X509_PublicKey>(Botan::X509::load_key(pub_block));␊
shared_ptr<RSA_PublicKey> pub_key = shared_dynamic_cast<RSA_PublicKey>(x509_key);␊
␊
if (!pub_key)␊
throw recoverable_failure(origin::system,␊
"Failed to get monotone RSA public key");␊
␊
agent.sign_data(*pub_key, tosign, sig_string);␊
}␊
if (sig_string.length() <= 0)␊
L(FL("make_signature: monotone and ssh-agent keys do not match, will"␊
// See whether a lua hook will tell us the passphrase.␊
key_identity_info identity;␊
identity.given_name = id;␊
string lua_phrase;␊
if (lua.hook_get_passphrase(identity, lua_phrase))␊
phrase = utf8(lua_phrase, origin::user);␊
else␊
get_passphrase(phrase, id, key_id(), false, false);␊
␊
int cycles = 1;␊
for (;;)␊
try␊
{␊
#if BOTAN_VERSION_CODE >= BOTAN_VERSION_CODE_FOR(1,9,11)␊
arc4_key.resize(phrase().size());␊
arc4_key.copy(reinterpret_cast<Botan::byte const *>(phrase().data()),␊
phrase().size());␊
#else␊
arc4_key.set(reinterpret_cast<Botan::byte const *>(phrase().data()),␊
phrase().size());␊
#endif␊
␊
Pipe arc4_decryptor(get_cipher("ARC4", arc4_key, Botan::DECRYPTION));␊
␊
arc4_decryptor.process_msg(old_priv());␊
␊
// This is necessary because PKCS8::load_key() cannot currently␊
// recognize an unencrypted, raw-BER blob as such, but gets it␊
// right if it's PEM-coded.␊
SecureVector<Botan::byte> arc4_decrypt(arc4_decryptor.read_all());␊
Botan::DataSource_Memory ds(Botan::PEM_Code::encode(arc4_decrypt,␊
"PRIVATE KEY"));␊
#if BOTAN_VERSION_CODE >= BOTAN_VERSION_CODE_FOR(1,7,7)␊
pkcs8_key.reset(Botan::PKCS8::load_key(ds, lazy_rng::get()));␊
src/sha1.cc
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#if BOTAN_VERSION_CODE >= BOTAN_VERSION_CODE_FOR(1,7,23)␊
␊
Botan::AutoSeeded_RNG rng;␊
Botan::Algorithm_Factory& af =␊
Botan::global_state().algorithm_factory();␊
␊
const int milliseconds = 5000;␊
␊
// timer argument was removed in 1.9.4␊
#if BOTAN_VERSION_CODE < BOTAN_VERSION_CODE_FOR(1,9,4)␊
Botan::Default_Benchmark_Timer timer;␊
std::map<std::string, double> results =␊
Botan::algorithm_benchmark("SHA-1", milliseconds, timer, rng, af);␊
#else␊
std::map<std::string, double> results =␊
Botan::algorithm_benchmark("SHA-1", milliseconds, rng, af);␊
#endif␊
␊
for(std::map<std::string, double>::const_iterator i = results.begin();␊
i != results.end(); ++i)␊
{␊
P(F("SHA-1 provider '%s': %s MiB/s") % i->first % i->second);␊
}␊
␊
#else␊
int mebibytes = 100;␊
string test_str(mebibytes << 20, 'a');␊
data test_data(test_str, origin::internal);␊
id foo;␊
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#if BOTAN_VERSION_CODE >= BOTAN_VERSION_CODE_FOR(1,7,23)␊
␊
Botan::AutoSeeded_RNG rng;␊
Botan::Algorithm_Factory& af =␊
Botan::global_state().algorithm_factory();␊
␊
const int milliseconds = 5000;␊
␊
// timer argument was removed in 1.9.4␊
#if BOTAN_VERSION_CODE < BOTAN_VERSION_CODE_FOR(1,9,4)␊
Botan::Default_Benchmark_Timer timer;␊
std::map<std::string, double> results =␊
Botan::algorithm_benchmark("SHA-1", milliseconds, timer, rng, af);␊
#elif BOTAN_VERSION_CODE < BOTAN_VERSION_CODE_FOR(1,9,11)␊
std::map<std::string, double> results =␊
Botan::algorithm_benchmark("SHA-1", milliseconds, rng, af);␊
#else␊
std::map<std::string, double> results =␊
Botan::algorithm_benchmark("SHA-1", af, rng, milliseconds, 16);␊
#endif␊
␊
for(std::map<std::string, double>::const_iterator i = results.begin();␊
i != results.end(); ++i)␊
{␊
P(F("SHA-1 provider '%s': %s MiB/s") % i->first % i->second);␊
}␊
␊
#else␊
int mebibytes = 100;␊
string test_str(mebibytes << 20, 'a');␊
data test_data(test_str, origin::internal);␊
id foo;␊
src/ssh_agent.cc
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E(packet.length() == packet_loc, origin::system,␊
F("ssh_agent: get_keys: not all or too many packet bytes consumed,"␊
" location (%u), length (%i)")␊
% packet_loc␊
% packet.length());␊
␊
return s->keys;␊
}␊
␊
bool␊
ssh_agent::has_key(const keypair & key)␊
{␊
//grab the monotone public key as an RSA_PublicKey␊
SecureVector<Botan::byte> pub_block;␊
pub_block.set(reinterpret_cast<Botan::byte const *>((key.pub)().data()),␊
(key.pub)().size());␊
L(FL("has_key: building %d-byte pub key") % pub_block.size());␊
shared_ptr<X509_PublicKey> x509_key =␊
shared_ptr<X509_PublicKey>(Botan::X509::load_key(pub_block));␊
shared_ptr<RSA_PublicKey> pub_key = shared_dynamic_cast<RSA_PublicKey>(x509_key);␊
␊
if (!pub_key)␊
throw recoverable_failure(origin::system,␊
"has_key: Failed to get monotone RSA public key");␊
␊
vector<RSA_PublicKey> ssh_keys = get_keys();␊
for (vector<RSA_PublicKey>::const_iterator␊
si = ssh_keys.begin(); si != ssh_keys.end(); ++si)␊
{␊
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E(packet.length() == packet_loc, origin::system,␊
F("ssh_agent: get_keys: not all or too many packet bytes consumed,"␊
" location (%u), length (%i)")␊
% packet_loc␊
% packet.length());␊
␊
return s->keys;␊
}␊
␊
bool␊
ssh_agent::has_key(const keypair & key)␊
{␊
//grab the monotone public key as an RSA_PublicKey␊
SecureVector<Botan::byte> pub_block␊
(reinterpret_cast<Botan::byte const *>((key.pub)().data()),␊
(key.pub)().size());␊
L(FL("has_key: building %d-byte pub key") % pub_block.size());␊
shared_ptr<X509_PublicKey> x509_key =␊
shared_ptr<X509_PublicKey>(Botan::X509::load_key(pub_block));␊
shared_ptr<RSA_PublicKey> pub_key = shared_dynamic_cast<RSA_PublicKey>(x509_key);␊
␊
if (!pub_key)␊
throw recoverable_failure(origin::system,␊
"has_key: Failed to get monotone RSA public key");␊
␊
vector<RSA_PublicKey> ssh_keys = get_keys();␊
for (vector<RSA_PublicKey>::const_iterator␊
si = ssh_keys.begin(); si != ssh_keys.end(); ++si)␊
{␊
src/gzip.cc
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* Start Compressing with Gzip *␊
*************************************************/␊
void Gzip_Compression::start_msg()␊
{␊
clear();␊
put_header();␊
pipe.start_msg();␊
count = 0;␊
}␊
␊
/*************************************************␊
* Compress Input with Gzip *␊
*************************************************/␊
void Gzip_Compression::write(const byte input[], u32bit length)␊
{␊
␊
count += length;␊
pipe.write(input, length);␊
␊
zlib->stream.next_in = (Bytef*)input;␊
zlib->stream.avail_in = length;␊
␊
while(zlib->stream.avail_in != 0)␊
{␊
zlib->stream.next_out = (Bytef*)buffer.begin();␊
zlib->stream.avail_out = buffer.size();␊
int rc = deflate(&(zlib->stream), Z_NO_FLUSH);␊
{␊
if (!no_writes)␊
throw Exception("Gzip_Decompression: start_msg after already writing");␊
␊
pipe.start_msg();␊
datacount = 0;␊
pos = 0;␊
in_footer = false;␊
}␊
␊
/*************************************************␊
* Decompress Input with Gzip *␊
*************************************************/␊
void Gzip_Decompression::write(const byte input[], u32bit length)␊
{␊
if(length) no_writes = false;␊
␊
// If we're in the footer, take what we need, then go to the next block␊
if (in_footer)␊
{␊
u32bit eat_len = eat_footer(input, length);␊
input += eat_len;␊
length -= eat_len;␊
if (length == 0)␊
return;␊
}␊
␊
// Check the gzip header␊
if (pos < sizeof(GZIP::GZIP_HEADER))␊
{␊
u32bit len = std::min((u32bit)sizeof(GZIP::GZIP_HEADER)-pos, length);␊
u32bit cmplen = len;␊
// The last byte is the OS flag - we don't care about that␊
if (pos + len - 1 >= GZIP::HEADER_POS_OS)␊
cmplen--;␊
␊
if (std::memcmp(input, &GZIP::GZIP_HEADER[pos], cmplen) != 0)␊
{␊
throw Decoding_Error("Gzip_Decompression: Data integrity error in header");␊
}␊
input += len;␊
length -= len;␊
pos += len;␊
}␊
␊
zlib->stream.avail_in = length;␊
}␊
}␊
}␊
␊
/*************************************************␊
* Store the footer bytes *␊
*************************************************/␊
u32bit Gzip_Decompression::eat_footer(const byte input[], u32bit length)␊
{␊
if (footer.size() >= GZIP::FOOTER_LENGTH)␊
throw Decoding_Error("Gzip_Decompression: Data integrity error in footer");␊
␊
u32bit eat_len = std::min(GZIP::FOOTER_LENGTH-footer.size(), length);␊
footer.append(input, eat_len);␊
␊
if (footer.size() == GZIP::FOOTER_LENGTH)␊
{␊
check_footer();␊
clear();␊
}␊
␊
return eat_len;␊
}␊
␊
/*************************************************␊
* Check the gzip footer *␊
*************************************************/␊
throw Exception("Gzip_Decompression: Error finalizing decompression");␊
␊
pipe.end_msg();␊
␊
// 4 byte CRC32, and 4 byte length field␊
SecureVector<byte> buf(4);␊
SecureVector<byte> tmpbuf(4);␊
pipe.read(tmpbuf.begin(), tmpbuf.size(), Pipe::LAST_MESSAGE);␊
␊
// CRC32 is the reverse order to what gzip expects.␊
for (int i = 0; i < 4; i++)␊
buf[3-i] = tmpbuf[i];␊
␊
tmpbuf.set(footer.begin(), 4);␊
if (buf != tmpbuf)␊
throw Decoding_Error("Gzip_Decompression: Data integrity error - CRC32 error");␊
␊
// Check the length matches - it is encoded LSB-first␊
for (int i = 0; i < 4; i++)␊
{␊
if (footer.begin()[GZIP::FOOTER_LENGTH-1-i] != get_byte(i, datacount))␊
throw Decoding_Error("Gzip_Decompression: Data integrity error - incorrect length");␊
}␊
␊
}␊
␊
/*************************************************␊
␊
throw Exception("Gzip_Decompression: didn't find footer");␊
␊
}␊
␊
/*************************************************␊
* Clean up Decompression Context *␊
*************************************************/␊
void Gzip_Decompression::clear()␊
{␊
no_writes = true;␊
inflateReset(&(zlib->stream));␊
␊
footer.destroy();␊
pos = 0;␊
datacount = 0;␊
}␊
␊
}␊
␊
// Local Variables:␊
// mode: C++␊
// fill-column: 76␊
// c-file-style: "gnu"␊
// indent-tabs-mode: nil␊
// End:␊
// vim: et:sw=2:sts=2:ts=2:cino=>2s,{s,\:s,+s,t0,g0,^-2,e-2,n-2,p2s,(0,=s:␊
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* Start Compressing with Gzip *␊
*************************************************/␊
void Gzip_Compression::start_msg()␊
{␊
clear();␊
put_header();␊
pipe.start_msg();␊
count = 0;␊
}␊
␊
/*************************************************␊
* Compress Input with Gzip *␊
*************************************************/␊
void Gzip_Compression::write(const byte input[], filter_length_t length)␊
{␊
␊
count += length;␊
pipe.write(input, length);␊
␊
zlib->stream.next_in = (Bytef*)input;␊
zlib->stream.avail_in = length;␊
␊
while(zlib->stream.avail_in != 0)␊
{␊
zlib->stream.next_out = (Bytef*)buffer.begin();␊
zlib->stream.avail_out = buffer.size();␊
int rc = deflate(&(zlib->stream), Z_NO_FLUSH);␊
{␊
if (!no_writes)␊
throw Exception("Gzip_Decompression: start_msg after already writing");␊
␊
pipe.start_msg();␊
datacount = 0;␊
pos = 0;␊
in_footer = false;␊
}␊
␊
/*************************************************␊
* Decompress Input with Gzip *␊
*************************************************/␊
void Gzip_Decompression::write(const byte input[], filter_length_t length)␊
{␊
if(length) no_writes = false;␊
␊
// If we're in the footer, take what we need, then go to the next block␊
if (in_footer)␊
{␊
u32bit eat_len = eat_footer(input, length);␊
input += eat_len;␊
length -= eat_len;␊
if (length == 0)␊
return;␊
}␊
␊
// Check the gzip header␊
if (pos < sizeof(GZIP::GZIP_HEADER))␊
{␊
filter_length_t len = std::min((filter_length_t)sizeof(GZIP::GZIP_HEADER)-pos, length);␊
filter_length_t cmplen = len;␊
// The last byte is the OS flag - we don't care about that␊
if (pos + len - 1 >= GZIP::HEADER_POS_OS)␊
cmplen--;␊
␊
if (std::memcmp(input, &GZIP::GZIP_HEADER[pos], cmplen) != 0)␊
{␊
throw Decoding_Error("Gzip_Decompression: Data integrity error in header");␊
}␊
input += len;␊
length -= len;␊
pos += len;␊
}␊
␊
zlib->stream.avail_in = length;␊
}␊
}␊
}␊
␊
/*************************************************␊
* Store the footer bytes *␊
*************************************************/␊
u32bit Gzip_Decompression::eat_footer(const byte input[], u32bit length)␊
{␊
if (footer.size() >= GZIP::FOOTER_LENGTH)␊
throw Decoding_Error("Gzip_Decompression: Data integrity error in footer");␊
␊
#if BOTAN_VERSION_CODE >= BOTAN_VERSION_CODE_FOR(1,9,11)␊
size_t eat_len = std::min(GZIP::FOOTER_LENGTH-footer.size(),␊
static_cast<size_t>(length));␊
footer += std::make_pair(input, eat_len);␊
#else␊
u32bit eat_len = std::min(GZIP::FOOTER_LENGTH-footer.size(), length);␊
footer.append(input, eat_len);␊
#endif␊
␊
if (footer.size() == GZIP::FOOTER_LENGTH)␊
{␊
check_footer();␊
clear();␊
}␊
␊
return eat_len;␊
}␊
␊
/*************************************************␊
* Check the gzip footer *␊
*************************************************/␊
throw Exception("Gzip_Decompression: Error finalizing decompression");␊
␊
pipe.end_msg();␊
␊
// 4 byte CRC32, and 4 byte length field␊
SecureVector<byte> buf(4);␊
SecureVector<byte> tmpbuf(4);␊
pipe.read(tmpbuf.begin(), tmpbuf.size(), Pipe::LAST_MESSAGE);␊
␊
// CRC32 is the reverse order to what gzip expects.␊
for (int i = 0; i < 4; i++)␊
buf[3-i] = tmpbuf[i];␊
␊
#if BOTAN_VERSION_CODE >= BOTAN_VERSION_CODE_FOR(1,9,11)␊
tmpbuf.resize(4);␊
tmpbuf.copy(footer.begin(), 4);␊
#else␊
tmpbuf.set(footer.begin(), 4);␊
#endif␊
if (buf != tmpbuf)␊
throw Decoding_Error("Gzip_Decompression: Data integrity error - CRC32 error");␊
␊
// Check the length matches - it is encoded LSB-first␊
for (int i = 0; i < 4; i++)␊
{␊
if (footer.begin()[GZIP::FOOTER_LENGTH-1-i] != get_byte(i, datacount))␊
throw Decoding_Error("Gzip_Decompression: Data integrity error - incorrect length");␊
}␊
␊
}␊
␊
/*************************************************␊
␊
throw Exception("Gzip_Decompression: didn't find footer");␊
␊
}␊
␊
/*************************************************␊
* Clean up Decompression Context *␊
*************************************************/␊
void Gzip_Decompression::clear()␊
{␊
no_writes = true;␊
inflateReset(&(zlib->stream));␊
␊
#if BOTAN_VERSION_CODE >= BOTAN_VERSION_CODE_FOR(1,9,11)␊
footer.clear();␊
#else␊
footer.destroy();␊
#endif␊
pos = 0;␊
datacount = 0;␊
}␊
␊
}␊
␊
// Local Variables:␊
// mode: C++␊
// fill-column: 76␊
// c-file-style: "gnu"␊
// indent-tabs-mode: nil␊
// End:␊
// vim: et:sw=2:sts=2:ts=2:cino=>2s,{s,\:s,+s,t0,g0,^-2,e-2,n-2,p2s,(0,=s:␊
src/gzip.hh
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/*************************************************␊
* Gzip Compressor Header File *␊
* (C) 2001 Peter J Jones (pjones@pmade.org) *␊
* 2001-2004 Jack Lloyd *␊
*************************************************/␊
␊
#ifndef BOTAN_EXT_GZIP_H__␊
#define BOTAN_EXT_GZIP_H__␊
␊
#include <botan/filter.h>␊
#include <botan/pipe.h>␊
␊
namespace Botan {␊
␊
namespace GZIP {␊
␊
/* A basic header - we only need to set the IDs and compression method */␊
const byte GZIP_HEADER[] = {␊
0x1f, 0x8b, /* Magic ID bytes */␊
0x08, /* Compression method of 'deflate' */␊
0x00, /* Flags all empty */␊
0x00, 0x00, 0x00, 0x00, /* MTIME */␊
0x00, /* Extra flags */␊
0xff, /* Operating system (unknown) */␊
};␊
␊
const unsigned int HEADER_POS_OS = 9;␊
␊
const unsigned int FOOTER_LENGTH = 8;␊
␊
}␊
␊
/*************************************************␊
* Gzip Compression Filter *␊
*************************************************/␊
class Gzip_Compression : public Filter␊
{␊
public:␊
void write(const byte input[], u32bit length);␊
void start_msg();␊
void end_msg();␊
std::string name() const { return "Gzip_Compression"; }␊
␊
Gzip_Compression(u32bit = 1);␊
~Gzip_Compression();␊
private:␊
void clear();␊
void put_header();␊
void put_footer();␊
const u32bit level;␊
SecureVector<byte> buffer;␊
class Zlib_Stream* zlib;␊
Pipe pipe; /* A pipe for the crc32 processing */␊
u32bit count;␊
};␊
␊
/*************************************************␊
* Gzip Decompression Filter *␊
*************************************************/␊
class Gzip_Decompression : public Filter␊
{␊
public:␊
void write(const byte input[], u32bit length);␊
void start_msg();␊
void end_msg();␊
std::string name() const { return "Gzip_Decompression"; }␊
␊
Gzip_Decompression();␊
~Gzip_Decompression();␊
private:␊
u32bit eat_footer(const byte input[], u32bit length);␊
void check_footer();␊
void clear();␊
SecureVector<byte> buffer;␊
class Zlib_Stream* zlib;␊
bool no_writes;␊
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/*************************************************␊
* Gzip Compressor Header File *␊
* (C) 2001 Peter J Jones (pjones@pmade.org) *␊
* 2001-2004 Jack Lloyd *␊
*************************************************/␊
␊
#ifndef BOTAN_EXT_GZIP_H__␊
#define BOTAN_EXT_GZIP_H__␊
␊
#include <botan/version.h>␊
#include <botan/filter.h>␊
#include <botan/pipe.h>␊
␊
namespace Botan {␊
␊
namespace GZIP {␊
␊
/* A basic header - we only need to set the IDs and compression method */␊
const byte GZIP_HEADER[] = {␊
0x1f, 0x8b, /* Magic ID bytes */␊
0x08, /* Compression method of 'deflate' */␊
0x00, /* Flags all empty */␊
0x00, 0x00, 0x00, 0x00, /* MTIME */␊
0x00, /* Extra flags */␊
0xff, /* Operating system (unknown) */␊
};␊
␊
const unsigned int HEADER_POS_OS = 9;␊
␊
const unsigned int FOOTER_LENGTH = 8;␊
␊
}␊
␊
#if BOTAN_VERSION_CODE >= BOTAN_VERSION_CODE_FOR(1,9,11)␊
typedef size_t filter_length_t;␊
#else␊
typedef u32bit filter_length_t;␊
#endif␊
␊
/*************************************************␊
* Gzip Compression Filter *␊
*************************************************/␊
class Gzip_Compression : public Filter␊
{␊
public:␊
void write(const byte input[], filter_length_t length);␊
void start_msg();␊
void end_msg();␊
std::string name() const { return "Gzip_Compression"; }␊
␊
Gzip_Compression(u32bit = 1);␊
~Gzip_Compression();␊
private:␊
void clear();␊
void put_header();␊
void put_footer();␊
const u32bit level;␊
SecureVector<byte> buffer;␊
class Zlib_Stream* zlib;␊
Pipe pipe; /* A pipe for the crc32 processing */␊
u32bit count;␊
};␊
␊
/*************************************************␊
* Gzip Decompression Filter *␊
*************************************************/␊
class Gzip_Decompression : public Filter␊
{␊
public:␊
void write(const byte input[], filter_length_t length);␊
void start_msg();␊
void end_msg();␊
std::string name() const { return "Gzip_Decompression"; }␊
␊
Gzip_Decompression();␊
~Gzip_Decompression();␊
private:␊
u32bit eat_footer(const byte input[], u32bit length);␊
void check_footer();␊
void clear();␊
SecureVector<byte> buffer;␊
class Zlib_Stream* zlib;␊
bool no_writes;␊
src/key_packet.cc
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made_from,␊
F("malformed key_packet: invalid base64 block"));␊
}␊
void validate_key(string const & k) const␊
{␊
E(!k.empty()␊
&& k.find_first_not_of(constants::legal_key_name_bytes) == string::npos,␊
made_from,␊
F("malformed key_packet: invalid key name"));␊
}␊
void validate_public_key_data(string const & name, string const & keydata) const␊
{␊
string decoded = decode_base64_as<string>(keydata, origin::user);␊
Botan::SecureVector<Botan::byte> key_block;␊
key_block.set(reinterpret_cast<Botan::byte const *>(decoded.c_str()), decoded.size());␊
try␊
{␊
Botan::X509::load_key(key_block);␊
}␊
catch (Botan::Decoding_Error const & e)␊
{␊
E(false, origin::user,␊
F("malformed key_packet: invalid public key data for '%s': %s")␊
% name % e.what());␊
}␊
}␊
void validate_private_key_data(string const & name, string const & keydata) const␊
{␊
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made_from,␊
F("malformed key_packet: invalid base64 block"));␊
}␊
void validate_key(string const & k) const␊
{␊
E(!k.empty()␊
&& k.find_first_not_of(constants::legal_key_name_bytes) == string::npos,␊
made_from,␊
F("malformed key_packet: invalid key name"));␊
}␊
void validate_public_key_data(string const & name, string const & keydata) const␊
{␊
string decoded = decode_base64_as<string>(keydata, origin::user);␊
Botan::SecureVector<Botan::byte> key_block␊
(reinterpret_cast<Botan::byte const *>(decoded.c_str()), decoded.size());␊
try␊
{␊
Botan::X509::load_key(key_block);␊
}␊
catch (Botan::Decoding_Error const & e)␊
{␊
E(false, origin::user,␊
F("malformed key_packet: invalid public key data for '%s': %s")␊
% name % e.what());␊
}␊
}␊
void validate_private_key_data(string const & name, string const & keydata) const␊
{␊

General Comments

Comment 1 by Martin von Gagern, Sep 7, 2011

Updated patch attached to issue 182, which adjusts the runtime check 
as well. Is there some way to update this code review here? Or to 
close it and start a new one?

Comment 2 by Markus Wanner, Sep 23, 2013

This has been committed, thanks. Issue 182 is closed as well.
Status: Accepted

Comment 3 by Markus Wanner, Oct 24, 2013

The status have been updated.
Status: Fixed
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