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// copyright (C) 2004 graydon hoare <graydon@pobox.com>
// all rights reserved.
// licensed to the public under the terms of the GNU GPL (>= 2)
// see the file COPYING for details
#include <string>
#include <vector>
#include <utility>
#include "cryptopp/gzip.h"
#include "adler32.hh"
#include "constants.hh"
#include "netcmd.hh"
#include "netio.hh"
#include "numeric_vocab.hh"
#include "sanity.hh"
#include "transforms.hh"
using namespace std;
using namespace boost;
static netcmd_item_type
read_netcmd_item_type(string const & in,
size_t & pos,
string const & name)
{
u8 tmp = extract_datum_lsb<u8>(in, pos, name);
switch (tmp)
{
case static_cast<u8>(revision_item):
return revision_item;
case static_cast<u8>(manifest_item):
return manifest_item;
case static_cast<u8>(file_item):
return file_item;
case static_cast<u8>(cert_item):
return cert_item;
case static_cast<u8>(key_item):
return key_item;
case static_cast<u8>(epoch_item):
return epoch_item;
default:
throw bad_decode(F("unknown item type 0x%x for '%s'")
% static_cast<int>(tmp) % name);
}
}
netcmd::netcmd() : version(constants::netcmd_current_protocol_version),
cmd_code(bye_cmd)
{}
size_t netcmd::encoded_size()
{
string tmp;
insert_datum_uleb128<size_t>(payload.size(), tmp);
return 1 + 1 + tmp.size() + payload.size() + 4;
}
bool
netcmd::operator==(netcmd const & other) const
{
return version == other.version &&
cmd_code == other.cmd_code &&
payload == other.payload;
}
void
write_netcmd(netcmd const & in, string & out)
{
out += static_cast<char>(in.version);
out += static_cast<char>(in.cmd_code);
insert_variable_length_string(in.payload, out);
adler32 check(reinterpret_cast<u8 const *>(in.payload.data()),
in.payload.size());
insert_datum_lsb<u32>(check.sum(), out);
}
bool
read_netcmd(string & inbuf, netcmd & out)
{
size_t pos = 0;
if (inbuf.size() < constants::netcmd_minsz)
return false;
out.version = extract_datum_lsb<u8>(inbuf, pos, "netcmd protocol number");
int v = constants::netcmd_current_protocol_version;
if (out.version != constants::netcmd_current_protocol_version)
throw bad_decode(F("protocol version mismatch: wanted '%d' got '%d'")
% widen<u32,u8>(v)
% widen<u32,u8>(out.version));
u8 cmd_byte = extract_datum_lsb<u8>(inbuf, pos, "netcmd code");
switch (cmd_byte)
{
case static_cast<u8>(error_cmd):
case static_cast<u8>(bye_cmd):
case static_cast<u8>(hello_cmd):
case static_cast<u8>(anonymous_cmd):
case static_cast<u8>(auth_cmd):
case static_cast<u8>(confirm_cmd):
case static_cast<u8>(refine_cmd):
case static_cast<u8>(done_cmd):
case static_cast<u8>(send_data_cmd):
case static_cast<u8>(send_delta_cmd):
case static_cast<u8>(data_cmd):
case static_cast<u8>(delta_cmd):
case static_cast<u8>(nonexistant_cmd):
out.cmd_code = static_cast<netcmd_code>(cmd_byte);
break;
default:
throw bad_decode(F("unknown netcmd code 0x%x") % widen<u32,u8>(cmd_byte));
}
// check to see if we have even enough bytes for a complete uleb128
size_t payload_len = 0;
if (!try_extract_datum_uleb128<size_t>(inbuf, pos, "netcmd payload length", payload_len))
return false;
// they might have given us a bogus size
if (payload_len > constants::netcmd_payload_limit)
throw bad_decode(F("oversized payload of '%d' bytes") % payload_len);
// there might not be enough data yet in the input buffer
if (inbuf.size() < pos + payload_len + sizeof(u32))
return false;
out.payload = extract_substring(inbuf, pos, payload_len, "netcmd payload");
// they might have given us bogus data
u32 checksum = extract_datum_lsb<u32>(inbuf, pos, "netcmd checksum");
adler32 check(reinterpret_cast<u8 const *>(out.payload.data()),
out.payload.size());
if (checksum != check.sum())
throw bad_decode(F("bad checksum 0x%x vs. 0x%x") % checksum % check.sum());
return true;
}
////////////////////////////////////////////
// payload reader/writer functions follow //
////////////////////////////////////////////
void
read_error_cmd_payload(std::string const & in,
std::string & errmsg)
{
size_t pos = 0;
// syntax is: <errmsg:vstr>
extract_variable_length_string(in, errmsg, pos, "error netcmd, message");
assert_end_of_buffer(in, pos, "error netcmd payload");
}
void
write_error_cmd_payload(std::string const & errmsg,
std::string & out)
{
insert_variable_length_string(errmsg, out);
}
void
read_hello_cmd_payload(string const & in,
rsa_keypair_id & server_keyname,
rsa_pub_key & server_key,
id & nonce)
{
size_t pos = 0;
// syntax is: <server keyname:vstr> <server pubkey:vstr> <nonce:20 random bytes>
string skn_str, sk_str;
extract_variable_length_string(in, skn_str, pos, "hello netcmd, server key name");
server_keyname = rsa_keypair_id(skn_str);
extract_variable_length_string(in, sk_str, pos, "hello netcmd, server key");
server_key = rsa_pub_key(sk_str);
nonce = id(extract_substring(in, pos, constants::merkle_hash_length_in_bytes,
"hello netcmd, nonce"));
assert_end_of_buffer(in, pos, "hello netcmd payload");
}
void
write_hello_cmd_payload(rsa_keypair_id const & server_keyname,
rsa_pub_key const & server_key,
id const & nonce,
string & out)
{
I(nonce().size() == constants::merkle_hash_length_in_bytes);
insert_variable_length_string(server_keyname(), out);
insert_variable_length_string(server_key(), out);
out += nonce();
}
void
read_anonymous_cmd_payload(std::string const & in,
protocol_role & role,
std::string & collection,
id & nonce2)
{
size_t pos = 0;
// syntax is: <role:1 byte> <collection: vstr> <nonce2: 20 random bytes>
u8 role_byte = extract_datum_lsb<u8>(in, pos, "anonymous netcmd, role");
if (role_byte != static_cast<u8>(source_role)
&& role_byte != static_cast<u8>(sink_role)
&& role_byte != static_cast<u8>(source_and_sink_role))
throw bad_decode(F("unknown role specifier %d") % widen<u32,u8>(role_byte));
role = static_cast<protocol_role>(role_byte);
extract_variable_length_string(in, collection, pos, "anonymous netcmd, collection name");
nonce2 = id(extract_substring(in, pos, constants::merkle_hash_length_in_bytes,
"anonymous netcmd, nonce2"));
assert_end_of_buffer(in, pos, "anonymous netcmd payload");
}
void
write_anonymous_cmd_payload(protocol_role role,
std::string const & collection,
id const & nonce2,
std::string & out)
{
I(nonce2().size() == constants::merkle_hash_length_in_bytes);
out += static_cast<char>(role);
insert_variable_length_string(collection, out);
out += nonce2();
}
void
read_auth_cmd_payload(string const & in,
protocol_role & role,
string & collection,
id & client,
id & nonce1,
id & nonce2,
string & signature)
{
size_t pos = 0;
// syntax is: <role:1 byte> <collection: vstr>
// <client: 20 bytes sha1> <nonce1: 20 random bytes> <nonce2: 20 random bytes>
// <signature: vstr>
u8 role_byte = extract_datum_lsb<u8>(in, pos, "auth netcmd, role");
if (role_byte != static_cast<u8>(source_role)
&& role_byte != static_cast<u8>(sink_role)
&& role_byte != static_cast<u8>(source_and_sink_role))
throw bad_decode(F("unknown role specifier %d") % widen<u32,u8>(role_byte));
role = static_cast<protocol_role>(role_byte);
extract_variable_length_string(in, collection, pos, "auth netcmd, collection name");
client = id(extract_substring(in, pos, constants::merkle_hash_length_in_bytes,
"auth netcmd, client identifier"));
nonce1 = id(extract_substring(in, pos, constants::merkle_hash_length_in_bytes,
"auth netcmd, nonce1"));
nonce2 = id(extract_substring(in, pos, constants::merkle_hash_length_in_bytes,
"auth netcmd, nonce2"));
extract_variable_length_string(in, signature, pos, "auth netcmd, signature");
assert_end_of_buffer(in, pos, "auth netcmd payload");
}
void
write_auth_cmd_payload(protocol_role role,
string const & collection,
id const & client,
id const & nonce1,
id const & nonce2,
string const & signature,
string & out)
{
I(client().size() == constants::merkle_hash_length_in_bytes);
I(nonce1().size() == constants::merkle_hash_length_in_bytes);
I(nonce2().size() == constants::merkle_hash_length_in_bytes);
out += static_cast<char>(role);
insert_variable_length_string(collection, out);
out += client();
out += nonce1();
out += nonce2();
insert_variable_length_string(signature, out);
}
void
read_confirm_cmd_payload(string const & in,
string & signature)
{
size_t pos = 0;
// syntax is: <signature: vstr>
extract_variable_length_string(in, signature, pos, "confirm netcmd, signature");
assert_end_of_buffer(in, pos, "confirm netcmd payload");
}
void
write_confirm_cmd_payload(string const & signature,
string & out)
{
insert_variable_length_string(signature, out);
}
void
read_refine_cmd_payload(string const & in, merkle_node & node)
{
// syntax is: <node: a merkle tree node>
read_node(in, node);
}
void
write_refine_cmd_payload(merkle_node const & node, string & out)
{
write_node(node, out);
}
void
read_done_cmd_payload(string const & in,
size_t & level,
netcmd_item_type & type)
{
size_t pos = 0;
// syntax is: <level: uleb128> <type: 1 byte>
level = extract_datum_uleb128<size_t>(in, pos, "done netcmd, level number");
type = read_netcmd_item_type(in, pos, "done netcmd, item type");
assert_end_of_buffer(in, pos, "done netcmd payload");
}
void
write_done_cmd_payload(size_t level,
netcmd_item_type type,
string & out)
{
insert_datum_uleb128<size_t>(level, out);
out += static_cast<char>(type);
}
void
read_send_data_cmd_payload(string const & in,
netcmd_item_type & type,
id & item)
{
size_t pos = 0;
// syntax is: <type: 1 byte> <id: 20 bytes sha1>
type = read_netcmd_item_type(in, pos, "send_data netcmd, item type");
item = id(extract_substring(in, pos, constants::merkle_hash_length_in_bytes,
"send_data netcmd, item identifier"));
assert_end_of_buffer(in, pos, "send_data netcmd payload");
}
void
write_send_data_cmd_payload(netcmd_item_type type,
id const & item,
string & out)
{
I(item().size() == constants::merkle_hash_length_in_bytes);
out += static_cast<char>(type);
out += item();
}
void
read_send_delta_cmd_payload(string const & in,
netcmd_item_type & type,
id & base,
id & ident)
{
size_t pos = 0;
// syntax is: <type: 1 byte> <src: 20 bytes sha1> <dst: 20 bytes sha1>
type = read_netcmd_item_type(in, pos, "send_delta netcmd, item type");
base = id(extract_substring(in, pos, constants::merkle_hash_length_in_bytes,
"send_delta netcmd, base item identifier"));
ident = id(extract_substring(in, pos, constants::merkle_hash_length_in_bytes,
"send_delta netcmd, ident item identifier"));
assert_end_of_buffer(in, pos, "send_delta netcmd payload");
}
void
write_send_delta_cmd_payload(netcmd_item_type type,
id const & base,
id const & ident,
string & out)
{
I(base().size() == constants::merkle_hash_length_in_bytes);
I(ident().size() == constants::merkle_hash_length_in_bytes);
out += static_cast<char>(type);
out += base();
out += ident();
}
void
read_data_cmd_payload(string const & in,
netcmd_item_type & type,
id & item,
string & dat)
{
size_t pos = 0;
// syntax is: <type: 1 byte> <id: 20 bytes sha1>
// <compressed_p1: 1 byte> <dat: vstr>
type = read_netcmd_item_type(in, pos, "data netcmd, item type");
item = id(extract_substring(in, pos, constants::merkle_hash_length_in_bytes,
"data netcmd, item identifier"));
dat.clear();
u8 compressed_p = extract_datum_lsb<u8>(in, pos, "data netcmd, compression flag");
extract_variable_length_string(in, dat, pos, "data netcmd, data payload");
if (compressed_p == 1)
dat = xform<CryptoPP::Gunzip>(dat);
assert_end_of_buffer(in, pos, "data netcmd payload");
}
void
write_data_cmd_payload(netcmd_item_type type,
id const & item,
string const & dat,
string & out)
{
I(item().size() == constants::merkle_hash_length_in_bytes);
out += static_cast<char>(type);
out += item();
if (dat.size() > constants::netcmd_minimum_bytes_to_bother_with_gzip)
{
string tmp;
tmp = xform<CryptoPP::Gzip>(dat);
out += static_cast<char>(1); // compressed flag
insert_variable_length_string(tmp, out);
}
else
{
out += static_cast<char>(0); // compressed flag
insert_variable_length_string(dat, out);
}
}
void
read_delta_cmd_payload(string const & in,
netcmd_item_type & type,
id & base, id & ident, delta & del)
{
size_t pos = 0;
// syntax is: <type: 1 byte> <src: 20 bytes sha1> <dst: 20 bytes sha1>
// <compressed_p: 1 byte> <del: vstr>
type = read_netcmd_item_type(in, pos, "delta netcmd, item type");
base = id(extract_substring(in, pos, constants::merkle_hash_length_in_bytes,
"delta netcmd, base identifier"));
ident = id(extract_substring(in, pos, constants::merkle_hash_length_in_bytes,
"delta netcmd, ident identifier"));
u8 compressed_p = extract_datum_lsb<u8>(in, pos, "delta netcmd, compression flag");
string tmp;
extract_variable_length_string(in, tmp, pos, "delta netcmd, delta payload");
if (compressed_p == 1)
tmp = xform<CryptoPP::Gunzip>(tmp);
del = delta(tmp);
assert_end_of_buffer(in, pos, "delta netcmd payload");
}
void
write_delta_cmd_payload(netcmd_item_type & type,
id const & base, id const & ident,
delta const & del, string & out)
{
I(base().size() == constants::merkle_hash_length_in_bytes);
I(ident().size() == constants::merkle_hash_length_in_bytes);
out += static_cast<char>(type);
out += base();
out += ident();
string tmp = del();
if (tmp.size() > constants::netcmd_minimum_bytes_to_bother_with_gzip)
{
out += static_cast<char>(1); // compressed flag
tmp = xform<CryptoPP::Gzip>(tmp);
}
else
{
out += static_cast<char>(0); // compressed flag
}
I(tmp.size() <= constants::netcmd_payload_limit);
insert_variable_length_string(tmp, out);
}
void
read_nonexistant_cmd_payload(string const & in,
netcmd_item_type & type,
id & item)
{
size_t pos = 0;
// syntax is: <type: 1 byte> <id: 20 bytes sha1>
type = read_netcmd_item_type(in, pos, "nonexistant netcmd, item type");
item = id(extract_substring(in, pos, constants::merkle_hash_length_in_bytes,
"nonexistant netcmd, item identifier"));
assert_end_of_buffer(in, pos, "nonexistant netcmd payload");
}
void
write_nonexistant_cmd_payload(netcmd_item_type type,
id const & item,
string & out)
{
I(item().size() == constants::merkle_hash_length_in_bytes);
out += static_cast<char>(type);
out += item();
}
#ifdef BUILD_UNIT_TESTS
#include "unit_tests.hh"
#include "transforms.hh"
#include <boost/lexical_cast.hpp>
void
test_netcmd_functions()
{
try
{
// error_cmd
{
L(F("checking i/o round trip on error_cmd\n"));
netcmd out_cmd, in_cmd;
string out_errmsg("your shoelaces are untied"), in_errmsg;
string buf;
out_cmd.cmd_code = error_cmd;
write_error_cmd_payload(out_errmsg, out_cmd.payload);
write_netcmd(out_cmd, buf);
BOOST_CHECK(read_netcmd(buf, in_cmd));
read_error_cmd_payload(in_cmd.payload, in_errmsg);
BOOST_CHECK(in_cmd == out_cmd);
BOOST_CHECK(in_errmsg == out_errmsg);
L(F("errmsg_cmd test done, buffer was %d bytes\n") % buf.size());
}
// bye_cmd
{
L(F("checking i/o round trip on bye_cmd\n"));
netcmd out_cmd, in_cmd;
string buf;
out_cmd.cmd_code = bye_cmd;
write_netcmd(out_cmd, buf);
BOOST_CHECK(read_netcmd(buf, in_cmd));
BOOST_CHECK(in_cmd == out_cmd);
L(F("bye_cmd test done, buffer was %d bytes\n") % buf.size());
}
// hello_cmd
{
L(F("checking i/o round trip on hello_cmd\n"));
netcmd out_cmd, in_cmd;
string buf;
rsa_keypair_id out_server_keyname("server@there"), in_server_keyname;
rsa_pub_key out_server_key("9387938749238792874"), in_server_key;
id out_nonce(raw_sha1("nonce it up")), in_nonce;
out_cmd.cmd_code = hello_cmd;
write_hello_cmd_payload(out_server_keyname, out_server_key, out_nonce, out_cmd.payload);
write_netcmd(out_cmd, buf);
BOOST_CHECK(read_netcmd(buf, in_cmd));
read_hello_cmd_payload(in_cmd.payload, in_server_keyname, in_server_key, in_nonce);
BOOST_CHECK(in_cmd == out_cmd);
BOOST_CHECK(in_server_keyname == out_server_keyname);
BOOST_CHECK(in_server_key == out_server_key);
BOOST_CHECK(in_nonce == out_nonce);
L(F("hello_cmd test done, buffer was %d bytes\n") % buf.size());
}
// anonymous_cmd
{
L(F("checking i/o round trip on anonymous_cmd\n"));
netcmd out_cmd, in_cmd;
protocol_role out_role = source_and_sink_role, in_role;
string buf;
id out_nonce2(raw_sha1("nonce start my heart")), in_nonce2;
string out_collection("radishes galore!"), in_collection;
out_cmd.cmd_code = anonymous_cmd;
write_anonymous_cmd_payload(out_role, out_collection, out_nonce2, out_cmd.payload);
write_netcmd(out_cmd, buf);
BOOST_CHECK(read_netcmd(buf, in_cmd));
read_anonymous_cmd_payload(in_cmd.payload, in_role, in_collection, in_nonce2);
BOOST_CHECK(in_cmd == out_cmd);
BOOST_CHECK(in_nonce2 == out_nonce2);
BOOST_CHECK(in_role == out_role);
L(F("anonymous_cmd test done, buffer was %d bytes\n") % buf.size());
}
// auth_cmd
{
L(F("checking i/o round trip on auth_cmd\n"));
netcmd out_cmd, in_cmd;
protocol_role out_role = source_and_sink_role, in_role;
string buf;
id out_client(raw_sha1("happy client day")), out_nonce1(raw_sha1("nonce me amadeus")),
out_nonce2(raw_sha1("nonce start my heart")),
in_client, in_nonce1, in_nonce2;
string out_signature(raw_sha1("burble") + raw_sha1("gorby")), out_collection("radishes galore!"),
in_signature, in_collection;
out_cmd.cmd_code = auth_cmd;
write_auth_cmd_payload(out_role, out_collection, out_client, out_nonce1,
out_nonce2, out_signature, out_cmd.payload);
write_netcmd(out_cmd, buf);
BOOST_CHECK(read_netcmd(buf, in_cmd));
read_auth_cmd_payload(in_cmd.payload, in_role, in_collection, in_client,
in_nonce1, in_nonce2, in_signature);
BOOST_CHECK(in_cmd == out_cmd);
BOOST_CHECK(in_client == out_client);
BOOST_CHECK(in_nonce1 == out_nonce1);
BOOST_CHECK(in_nonce2 == out_nonce2);
BOOST_CHECK(in_signature == out_signature);
BOOST_CHECK(in_role == out_role);
L(F("auth_cmd test done, buffer was %d bytes\n") % buf.size());
}
// confirm_cmd
{
L(F("checking i/o round trip on confirm_cmd\n"));
netcmd out_cmd, in_cmd;
string buf;
string out_signature(raw_sha1("egg") + raw_sha1("tomago")), in_signature;
out_cmd.cmd_code = confirm_cmd;
write_confirm_cmd_payload(out_signature, out_cmd.payload);
write_netcmd(out_cmd, buf);
BOOST_CHECK(read_netcmd(buf, in_cmd));
read_confirm_cmd_payload(in_cmd.payload, in_signature);
BOOST_CHECK(in_cmd == out_cmd);
BOOST_CHECK(in_signature == out_signature);
L(F("confirm_cmd test done, buffer was %d bytes\n") % buf.size());
}
// refine_cmd
{
L(F("checking i/o round trip on refine_cmd\n"));
netcmd out_cmd, in_cmd;
string buf;
merkle_node out_node, in_node;
out_node.set_raw_slot(0, id(raw_sha1("The police pulled Kris Kringle over")));
out_node.set_raw_slot(3, id(raw_sha1("Kris Kringle tried to escape from the police")));
out_node.set_raw_slot(8, id(raw_sha1("He was arrested for auto theft")));
out_node.set_raw_slot(15, id(raw_sha1("He was whisked away to jail")));
out_node.set_slot_state(0, subtree_state);
out_node.set_slot_state(3, live_leaf_state);
out_node.set_slot_state(8, dead_leaf_state);
out_node.set_slot_state(15, subtree_state);
out_cmd.cmd_code = refine_cmd;
write_refine_cmd_payload(out_node, out_cmd.payload);
write_netcmd(out_cmd, buf);
BOOST_CHECK(read_netcmd(buf, in_cmd));
read_refine_cmd_payload(in_cmd.payload, in_node);
BOOST_CHECK(in_cmd == out_cmd);
BOOST_CHECK(in_node == out_node);
L(F("refine_cmd test done, buffer was %d bytes\n") % buf.size());
}
// done_cmd
{
L(F("checking i/o round trip on done_cmd\n"));
netcmd out_cmd, in_cmd;
size_t out_level(12), in_level;
netcmd_item_type out_type(key_item), in_type(manifest_item);
string buf;
out_cmd.cmd_code = done_cmd;
write_done_cmd_payload(out_level, out_type, out_cmd.payload);
write_netcmd(out_cmd, buf);
BOOST_CHECK(read_netcmd(buf, in_cmd));
read_done_cmd_payload(in_cmd.payload, in_level, in_type);
BOOST_CHECK(in_level == out_level);
BOOST_CHECK(in_type == out_type);
L(F("done_cmd test done, buffer was %d bytes\n") % buf.size());
}
// send_data_cmd
{
L(F("checking i/o round trip on send_data_cmd\n"));
netcmd out_cmd, in_cmd;
netcmd_item_type out_type(file_item), in_type(key_item);
id out_id(raw_sha1("avocado is the yummiest")), in_id;
string buf;
out_cmd.cmd_code = send_data_cmd;
write_send_data_cmd_payload(out_type, out_id, out_cmd.payload);
write_netcmd(out_cmd, buf);
BOOST_CHECK(read_netcmd(buf, in_cmd));
read_send_data_cmd_payload(in_cmd.payload, in_type, in_id);
BOOST_CHECK(in_type == out_type);
BOOST_CHECK(in_id == out_id);
L(F("send_data_cmd test done, buffer was %d bytes\n") % buf.size());
}
// send_delta_cmd
{
L(F("checking i/o round trip on send_delta_cmd\n"));
netcmd out_cmd, in_cmd;
netcmd_item_type out_type(file_item), in_type(key_item);
id out_head(raw_sha1("when you board an airplane")), in_head;
id out_base(raw_sha1("always check the exit locations")), in_base;
string buf;
out_cmd.cmd_code = send_delta_cmd;
write_send_delta_cmd_payload(out_type, out_head, out_base, out_cmd.payload);
write_netcmd(out_cmd, buf);
BOOST_CHECK(read_netcmd(buf, in_cmd));
read_send_delta_cmd_payload(in_cmd.payload, in_type, in_head, in_base);
BOOST_CHECK(in_type == out_type);
BOOST_CHECK(in_head == out_head);
BOOST_CHECK(in_base == out_base);
L(F("send_delta_cmd test done, buffer was %d bytes\n") % buf.size());
}
// data_cmd
{
L(F("checking i/o round trip on data_cmd\n"));
netcmd out_cmd, in_cmd;
netcmd_item_type out_type(file_item), in_type(key_item);
id out_id(raw_sha1("tuna is not yummy")), in_id;
string out_dat("thank you for flying northwest"), in_dat;
string buf;
out_cmd.cmd_code = data_cmd;
write_data_cmd_payload(out_type, out_id, out_dat, out_cmd.payload);
write_netcmd(out_cmd, buf);
BOOST_CHECK(read_netcmd(buf, in_cmd));
read_data_cmd_payload(in_cmd.payload, in_type, in_id, in_dat);
BOOST_CHECK(in_id == out_id);
BOOST_CHECK(in_dat == out_dat);
L(F("data_cmd test done, buffer was %d bytes\n") % buf.size());
}
// delta_cmd
{
L(F("checking i/o round trip on delta_cmd\n"));
netcmd out_cmd, in_cmd;
netcmd_item_type out_type(file_item), in_type(key_item);
id out_head(raw_sha1("your seat cusion can be reused")), in_head;
id out_base(raw_sha1("as a floatation device")), in_base;
delta out_delta("goodness, this is not an xdelta"), in_delta;
string buf;
out_cmd.cmd_code = delta_cmd;
write_delta_cmd_payload(out_type, out_head, out_base, out_delta, out_cmd.payload);
write_netcmd(out_cmd, buf);
BOOST_CHECK(read_netcmd(buf, in_cmd));
read_delta_cmd_payload(in_cmd.payload, in_type, in_head, in_base, in_delta);
BOOST_CHECK(in_type == out_type);
BOOST_CHECK(in_head == out_head);
BOOST_CHECK(in_base == out_base);
BOOST_CHECK(in_delta == out_delta);
L(F("delta_cmd test done, buffer was %d bytes\n") % buf.size());
}
// nonexistant_cmd
{
L(F("checking i/o round trip on nonexistant_cmd\n"));
netcmd out_cmd, in_cmd;
netcmd_item_type out_type(file_item), in_type(key_item);
id out_id(raw_sha1("avocado is the yummiest")), in_id;
string buf;
out_cmd.cmd_code = nonexistant_cmd;
write_send_data_cmd_payload(out_type, out_id, out_cmd.payload);
write_netcmd(out_cmd, buf);
BOOST_CHECK(read_netcmd(buf, in_cmd));
read_send_data_cmd_payload(in_cmd.payload, in_type, in_id);
BOOST_CHECK(in_type == out_type);
BOOST_CHECK(in_id == out_id);
L(F("nonexistant_cmd test done, buffer was %d bytes\n") % buf.size());
}
}
catch (bad_decode & d)
{
L(F("bad decode exception: '%s'\n") % d.what);
throw;
}
}
void
add_netcmd_tests(test_suite * suite)
{
suite->add(BOOST_TEST_CASE(&test_netcmd_functions));
}
#endif // BUILD_UNIT_TESTS
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