6430144375

Committed 06 Oct 2023 09:53AM UTC coverage: 91.693% (+0.005%) from 91.688%

Build # 6430144375

Build Type

Pull #3732

github

Committed by

web-flow

Commit Message

Merge 870e00833 into 30ecb8719

Pull Request Pull Request #3732: [TLS 1.3] Test Hybrid Schemes Online

Run Details

79955 of 87199 relevant lines covered (91.69%)

8639434.86 hits per line

Source File
Press 'n' to go to next uncovered line, 'b' for previous

76.0

/src/cli/tls_client.cpp

/*
* (C) 2014,2015 Jack Lloyd
*     2016 Matthias Gierlings
*     2017 René Korthaus, Rohde & Schwarz Cybersecurity
*     2022 René Meusel, Hannes Rantzsch - neXenio GmbH
*     2023 René Meusel, Rohde & Schwarz Cybersecurity
*
* Botan is released under the Simplified BSD License (see license.txt)
*/

#include "cli.h"

#if defined(BOTAN_HAS_TLS) && defined(BOTAN_TARGET_OS_HAS_FILESYSTEM) && defined(BOTAN_TARGET_OS_HAS_SOCKETS)

   #include <botan/hex.h>
   #include <botan/ocsp.h>
   #include <botan/tls_callbacks.h>
   #include <botan/tls_client.h>
   #include <botan/tls_policy.h>
   #include <botan/tls_session_manager_memory.h>
   #include <botan/x509path.h>
   #include <fstream>

   #if defined(BOTAN_HAS_TLS_SQLITE3_SESSION_MANAGER)
      #include <botan/tls_session_manager_sqlite.h>
   #endif

   #include <memory>
   #include <string>

   #include "socket_utils.h"
   #include "tls_helpers.h"

namespace Botan_CLI {

class TLS_Client;

namespace {

class Callbacks : public Botan::TLS::Callbacks {
   public:
      Callbacks(TLS_Client& client_command) : m_client_command(client_command), m_peer_closed(false) {}

      std::ostream& output();
      bool flag_set(const std::string& flag_name) const;
      void send(std::span<const uint8_t> buffer);

      int peer_closed() const { return m_peer_closed; }

      void tls_verify_cert_chain(const std::vector<Botan::X509_Certificate>& cert_chain,
                                 const std::vector<std::optional<Botan::OCSP::Response>>& ocsp,
                                 const std::vector<Botan::Certificate_Store*>& trusted_roots,
                                 Botan::Usage_Type usage,
                                 std::string_view hostname,
                                 const Botan::TLS::Policy& policy) override {
         if(cert_chain.empty()) {
            throw Botan::Invalid_Argument("Certificate chain was empty");
         }

         Botan::Path_Validation_Restrictions restrictions(policy.require_cert_revocation_info(),
                                                          policy.minimum_signature_strength());

         auto ocsp_timeout = std::chrono::milliseconds(1000);

         Botan::Path_Validation_Result result = Botan::x509_path_validate(
            cert_chain, restrictions, trusted_roots, hostname, usage, tls_current_timestamp(), ocsp_timeout, ocsp);

         output() << "Certificate validation status: " << result.result_string() << "\n";
         if(result.successful_validation()) {
            auto status = result.all_statuses();

            if(!status.empty() && status[0].contains(Botan::Certificate_Status_Code::OCSP_RESPONSE_GOOD)) {
               output() << "Valid OCSP response for this server\n";
            }
         }
      }

      void tls_session_activated() override { output() << "Handshake complete\n"; }

      void tls_session_established(const Botan::TLS::Session_Summary& session) override {
         output() << "Handshake complete, " << session.version().to_string() << " using "
                  << session.ciphersuite().to_string();

         if(const auto& psk = session.external_psk_identity()) {
            output() << " (utilized PSK identity: " << maybe_hex_encode(psk.value()) << ")";
         }

         output() << std::endl;

         if(const auto& session_id = session.session_id(); !session_id.empty()) {
            output() << "Session ID " << Botan::hex_encode(session_id.get()) << "\n";
         }

         if(const auto& session_ticket = session.session_ticket()) {
            output() << "Session ticket " << Botan::hex_encode(session_ticket->get()) << "\n";
         }

         if(flag_set("print-certs")) {
            const std::vector<Botan::X509_Certificate>& certs = session.peer_certs();

            for(size_t i = 0; i != certs.size(); ++i) {
               output() << "Certificate " << i + 1 << "/" << certs.size() << "\n";
               output() << certs[i].to_string();
               output() << certs[i].PEM_encode();
            }
         }
      }

      void tls_emit_data(std::span<const uint8_t> buf) override {
         if(flag_set("debug")) {
            output() << "<< " << Botan::hex_encode(buf) << "\n";
         }

         send(buf);
      }

      void tls_alert(Botan::TLS::Alert alert) override { output() << "Alert: " << alert.type_string() << "\n"; }

      void tls_record_received(uint64_t /*seq_no*/, std::span<const uint8_t> buf) override {
         for(const auto c : buf) {
            output() << c;
         }
      }

      std::vector<uint8_t> tls_sign_message(const Botan::Private_Key& key,
                                            Botan::RandomNumberGenerator& rng,
                                            const std::string_view padding,
                                            Botan::Signature_Format format,
                                            const std::vector<uint8_t>& msg) override {
         output() << "Performing client authentication\n";
         return Botan::TLS::Callbacks::tls_sign_message(key, rng, padding, format, msg);
      }

      bool tls_peer_closed_connection() override {
         m_peer_closed = true;
         return Botan::TLS::Callbacks::tls_peer_closed_connection();
      }

   private:
      TLS_Client& m_client_command;
      bool m_peer_closed;
};

}  // namespace

class TLS_Client final : public Command {
   public:
      TLS_Client() :
            Command(
               "tls_client host --port=443 --print-certs --policy=default "
               "--skip-system-cert-store --trusted-cas= --tls-version=default "
               "--session-db= --session-db-pass= --next-protocols= --type=tcp "
               "--client-cert= --client-cert-key= --psk= --psk-identity= --psk-prf=SHA-256 --debug") {
         init_sockets();
      }

      ~TLS_Client() override { stop_sockets(); }

      TLS_Client(const TLS_Client& other) = delete;
      TLS_Client(TLS_Client&& other) = delete;
      TLS_Client& operator=(const TLS_Client& other) = delete;
      TLS_Client& operator=(TLS_Client&& other) = delete;

      std::string group() const override { return "tls"; }

      std::string description() const override { return "Connect to a host using TLS/DTLS"; }

      void go() override {
         std::shared_ptr<Botan::TLS::Session_Manager> session_mgr;

         auto callbacks = std::make_shared<Callbacks>(*this);

         const std::string sessions_db = get_arg("session-db");
         const std::string host = get_arg("host");
         const uint16_t port = get_arg_u16("port");
         const std::string transport = get_arg("type");
         const std::string next_protos = get_arg("next-protocols");
         const bool use_system_cert_store = flag_set("skip-system-cert-store") == false;
         const std::string trusted_CAs = get_arg("trusted-cas");
         const auto tls_version = get_arg("tls-version");

         if(!sessions_db.empty()) {
   #if defined(BOTAN_HAS_TLS_SQLITE3_SESSION_MANAGER)
            const std::string sessions_passphrase = get_passphrase_arg("Session DB passphrase", "session-db-pass");
            session_mgr.reset(
               new Botan::TLS::Session_Manager_SQLite(sessions_passphrase, rng_as_shared(), sessions_db));
   #else
            error_output() << "Ignoring session DB file, sqlite not enabled\n";
   #endif
         }

         if(!session_mgr) {
            session_mgr = std::make_shared<Botan::TLS::Session_Manager_In_Memory>(rng_as_shared());
         }

         auto policy = load_tls_policy(get_arg("policy"));

         if(transport != "tcp" && transport != "udp") {
            throw CLI_Usage_Error("Invalid transport type '" + transport + "' for TLS");
         }

         const std::vector<std::string> protocols_to_offer = Command::split_on(next_protos, ',');

         if(!policy) {
            policy = std::make_shared<Botan::TLS::Policy>();
         }

         const bool use_tcp = (transport == "tcp");
         Botan::TLS::Protocol_Version version = policy->latest_supported_version(!use_tcp);

         if(tls_version != "default") {
            if(tls_version == "1.2") {
               version = use_tcp ? Botan::TLS::Protocol_Version::TLS_V12 : Botan::TLS::Protocol_Version::DTLS_V12;
            } else if(tls_version == "1.3") {
               version = use_tcp ? Botan::TLS::Protocol_Version::TLS_V13 : Botan::TLS::Protocol_Version::DTLS_V13;
            } else {
               error_output() << "Unknown TLS protocol version " << tls_version << '\n';
            }
         }

         struct sockaddr_storage addrbuf;
         std::string hostname;
         if(!host.empty() && inet_pton(AF_INET, host.c_str(), &addrbuf) != 1 &&
            inet_pton(AF_INET6, host.c_str(), &addrbuf) != 1) {
            hostname = host;
         }

         m_sockfd = connect_to_host(host, port, use_tcp);

         const auto client_crt_path = get_arg_maybe("client-cert");
         const auto client_key_path = get_arg_maybe("client-cert-key");

         auto psk = [this]() -> std::optional<Botan::secure_vector<uint8_t>> {
            auto psk_hex = get_arg_maybe("psk");
            if(psk_hex) {
               return Botan::hex_decode_locked(psk_hex.value());
            } else {
               return {};
            }
         }();
         const std::optional<std::string> psk_identity = get_arg_maybe("psk-identity");
         const std::optional<std::string> psk_prf = get_arg_maybe("psk-prf");

         auto creds = std::make_shared<Basic_Credentials_Manager>(use_system_cert_store,
                                                                  trusted_CAs,
                                                                  client_crt_path,
                                                                  client_key_path,
                                                                  std::move(psk),
                                                                  psk_identity,
                                                                  psk_prf);

         Botan::TLS::Client client(callbacks,
                                   session_mgr,
                                   creds,
                                   policy,
                                   rng_as_shared(),
                                   Botan::TLS::Server_Information(hostname, port),
                                   version,
                                   protocols_to_offer);

         bool first_active = true;
         bool we_closed = false;

         while(!client.is_closed()) {
            fd_set readfds;
            FD_ZERO(&readfds);
            FD_SET(m_sockfd, &readfds);

            if(client.is_active()) {
               FD_SET(STDIN_FILENO, &readfds);
               if(first_active && !protocols_to_offer.empty()) {
                  std::string app = client.application_protocol();
                  if(!app.empty()) {
                     output() << "Server choose protocol: " << client.application_protocol() << "\n";
                  }
                  first_active = false;
               }
            }

            struct timeval timeout = {1, 0};

            ::select(static_cast<int>(m_sockfd + 1), &readfds, nullptr, nullptr, &timeout);

            if(FD_ISSET(m_sockfd, &readfds)) {
               uint8_t buf[4 * 1024] = {0};

               ssize_t got = ::read(m_sockfd, buf, sizeof(buf));

               if(got == 0) {
                  output() << "EOF on socket\n";
                  break;
               } else if(got == -1) {
                  output() << "Socket error: " << errno << " " << err_to_string(errno) << "\n";
                  continue;
               }

               if(flag_set("debug")) {
                  output() << ">> " << Botan::hex_encode(buf, got) << "\n";
               }

               client.received_data(buf, got);
            }

            if(FD_ISSET(STDIN_FILENO, &readfds)) {
               uint8_t buf[1024] = {0};
               ssize_t got = read(STDIN_FILENO, buf, sizeof(buf));

               if(got == 0) {
                  output() << "EOF on stdin\n";
                  client.close();
                  we_closed = true;
                  break;
               } else if(got == -1) {
                  output() << "Stdin error: " << errno << " " << err_to_string(errno) << "\n";
                  continue;
               }

               if(got == 2 && buf[1] == '\n') {
                  char cmd = buf[0];

                  if(cmd == 'R' || cmd == 'r') {
                     output() << "Client initiated renegotiation\n";
                     client.renegotiate(cmd == 'R');
                  } else if(cmd == 'Q') {
                     output() << "Client initiated close\n";
                     client.close();
                     we_closed = true;
                  }
               } else {
                  client.send(buf, got);
               }
            }

            if(client.timeout_check()) {
               output() << "Timeout detected\n";
            }
         }

         set_return_code((we_closed || callbacks->peer_closed()) ? 0 : 1);

         ::close(m_sockfd);
      }

   public:
      using Command::flag_set;
      using Command::output;

      void send(std::span<const uint8_t> buf) const {
         while(!buf.empty()) {
            ssize_t sent = ::send(m_sockfd, buf.data(), buf.size(), MSG_NOSIGNAL);

            if(sent == -1) {
               if(errno == EINTR) {
                  sent = 0;
               } else {
                  throw CLI_Error("Socket write failed errno=" + std::to_string(errno));
               }
            }

            buf = buf.subspan(sent);
         }
      }

   private:
      static socket_type connect_to_host(const std::string& host, uint16_t port, bool tcp) {
         addrinfo hints;
         Botan::clear_mem(&hints, 1);
         hints.ai_family = AF_UNSPEC;
         hints.ai_socktype = tcp ? SOCK_STREAM : SOCK_DGRAM;
         addrinfo *res, *rp = nullptr;

         if(::getaddrinfo(host.c_str(), std::to_string(port).c_str(), &hints, &res) != 0) {
            throw CLI_Error("getaddrinfo failed for " + host);
         }

         socket_type fd = 0;

         for(rp = res; rp != nullptr; rp = rp->ai_next) {
            fd = ::socket(rp->ai_family, rp->ai_socktype, rp->ai_protocol);

            if(fd == invalid_socket()) {
               continue;
            }

            if(::connect(fd, rp->ai_addr, static_cast<socklen_t>(rp->ai_addrlen)) != 0) {
               ::close(fd);
               continue;
            }

            break;
         }

         ::freeaddrinfo(res);

         if(rp == nullptr)  // no address succeeded
         {
            throw CLI_Error("connect failed");
         }

         return fd;
      }

      static void dgram_socket_write(int sockfd, const uint8_t buf[], size_t length) {
         auto r = ::send(sockfd, buf, length, MSG_NOSIGNAL);

         if(r == -1) {
            throw CLI_Error("Socket write failed errno=" + std::to_string(errno));
         }
      }

      socket_type m_sockfd = invalid_socket();
};

namespace {

std::ostream& Callbacks::output() {
   return m_client_command.output();
}

bool Callbacks::flag_set(const std::string& flag_name) const {
   return m_client_command.flag_set(flag_name);
}

void Callbacks::send(std::span<const uint8_t> buffer) {
   m_client_command.send(buffer);
}

}  // namespace

BOTAN_REGISTER_COMMAND("tls_client", TLS_Client);

}  // namespace Botan_CLI

#endif

1	/*
2	* (C) 2014,2015 Jack Lloyd
3	* 2016 Matthias Gierlings
4	* 2017 René Korthaus, Rohde & Schwarz Cybersecurity
5	* 2022 René Meusel, Hannes Rantzsch - neXenio GmbH
6	* 2023 René Meusel, Rohde & Schwarz Cybersecurity
7	*
8	* Botan is released under the Simplified BSD License (see license.txt)
9	*/
10
11	#include "cli.h"
12
13	#if defined(BOTAN_HAS_TLS) && defined(BOTAN_TARGET_OS_HAS_FILESYSTEM) && defined(BOTAN_TARGET_OS_HAS_SOCKETS)
14
15	#include <botan/hex.h>
16	#include <botan/ocsp.h>
17	#include <botan/tls_callbacks.h>
18	#include <botan/tls_client.h>
19	#include <botan/tls_policy.h>
20	#include <botan/tls_session_manager_memory.h>
21	#include <botan/x509path.h>
22	#include <fstream>
23
24	#if defined(BOTAN_HAS_TLS_SQLITE3_SESSION_MANAGER)
25	#include <botan/tls_session_manager_sqlite.h>
26	#endif
27
28	#include <memory>
29	#include <string>
30
31	#include "socket_utils.h"
32	#include "tls_helpers.h"
33
34	namespace Botan_CLI {
35
36	class TLS_Client;
37
38	namespace {
39
40	class Callbacks : public Botan::TLS::Callbacks {	7✔
41	public:
42	Callbacks(TLS_Client& client_command) : m_client_command(client_command), m_peer_closed(false) {}	7✔
43
44	std::ostream& output();
45	bool flag_set(const std::string& flag_name) const;
46	void send(std::span<const uint8_t> buffer);
47
48	int peer_closed() const { return m_peer_closed; }	×
49
50	void tls_verify_cert_chain(const std::vector<Botan::X509_Certificate>& cert_chain,	5✔
51	const std::vector<std::optional<Botan::OCSP::Response>>& ocsp,
52	const std::vector<Botan::Certificate_Store*>& trusted_roots,
53	Botan::Usage_Type usage,
54	std::string_view hostname,
55	const Botan::TLS::Policy& policy) override {
56	if(cert_chain.empty()) {	5✔
57	throw Botan::Invalid_Argument("Certificate chain was empty");	×
58	}
59
60	Botan::Path_Validation_Restrictions restrictions(policy.require_cert_revocation_info(),	5✔
61	policy.minimum_signature_strength());	15✔
62
63	auto ocsp_timeout = std::chrono::milliseconds(1000);	5✔
64
65	Botan::Path_Validation_Result result = Botan::x509_path_validate(	5✔
66	cert_chain, restrictions, trusted_roots, hostname, usage, tls_current_timestamp(), ocsp_timeout, ocsp);	5✔
67
68	output() << "Certificate validation status: " << result.result_string() << "\n";	10✔
69	if(result.successful_validation()) {	5✔
70	auto status = result.all_statuses();	5✔
71
72	if(!status.empty() && status[0].contains(Botan::Certificate_Status_Code::OCSP_RESPONSE_GOOD)) {	10✔
73	output() << "Valid OCSP response for this server\n";	×
74	}
75	}	5✔
76	}	5✔
77
78	void tls_session_activated() override { output() << "Handshake complete\n"; }	7✔
79
80	void tls_session_established(const Botan::TLS::Session_Summary& session) override {	7✔
81	output() << "Handshake complete, " << session.version().to_string() << " using "	7✔
82	<< session.ciphersuite().to_string();	28✔
83
84	if(const auto& psk = session.external_psk_identity()) {	7✔
85	output() << " (utilized PSK identity: " << maybe_hex_encode(psk.value()) << ")";	4✔
86	}
87
88	output() << std::endl;	7✔
89
90	if(const auto& session_id = session.session_id(); !session_id.empty()) {	7✔
91	output() << "Session ID " << Botan::hex_encode(session_id.get()) << "\n";	14✔
92	}
93
94	if(const auto& session_ticket = session.session_ticket()) {	7✔
95	output() << "Session ticket " << Botan::hex_encode(session_ticket->get()) << "\n";	×
96	}
97
98	if(flag_set("print-certs")) {	14✔
99	const std::vector<Botan::X509_Certificate>& certs = session.peer_certs();
100
101	for(size_t i = 0; i != certs.size(); ++i) {	×
102	output() << "Certificate " << i + 1 << "/" << certs.size() << "\n";	×
103	output() << certs[i].to_string();	×
104	output() << certs[i].PEM_encode();	×
105	}
106	}
107	}	7✔
108
109	void tls_emit_data(std::span<const uint8_t> buf) override {	32✔
110	if(flag_set("debug")) {	64✔
111	output() << "<< " << Botan::hex_encode(buf) << "\n";	×
112	}
113
114	send(buf);	64✔
115	}	32✔
116
117	void tls_alert(Botan::TLS::Alert alert) override { output() << "Alert: " << alert.type_string() << "\n"; }	×
118
119	void tls_record_received(uint64_t /seq_no/, std::span<const uint8_t> buf) override {	10✔
120	for(const auto c : buf) {	1,606✔
121	output() << c;	1,596✔
122	}
123	}	10✔
124
125	std::vector<uint8_t> tls_sign_message(const Botan::Private_Key& key,	×
126	Botan::RandomNumberGenerator& rng,
127	const std::string_view padding,
128	Botan::Signature_Format format,
129	const std::vector<uint8_t>& msg) override {
130	output() << "Performing client authentication\n";	×
131	return Botan::TLS::Callbacks::tls_sign_message(key, rng, padding, format, msg);	×
132	}
133
134	bool tls_peer_closed_connection() override {	×
135	m_peer_closed = true;	×
136	return Botan::TLS::Callbacks::tls_peer_closed_connection();	×
137	}
138
139	private:
140	TLS_Client& m_client_command;
141	bool m_peer_closed;
142	};
143
144	} // namespace
145
146	class TLS_Client final : public Command {
147	public:
148	TLS_Client() :	8✔
149	Command(
150	"tls_client host --port=443 --print-certs --policy=default "
151	"--skip-system-cert-store --trusted-cas= --tls-version=default "
152	"--session-db= --session-db-pass= --next-protocols= --type=tcp "
153	"--client-cert= --client-cert-key= --psk= --psk-identity= --psk-prf=SHA-256 --debug") {	16✔
154	init_sockets();	8✔
155	}	8✔
156
157	~TLS_Client() override { stop_sockets(); }	8✔
158
159	TLS_Client(const TLS_Client& other) = delete;
160	TLS_Client(TLS_Client&& other) = delete;
161	TLS_Client& operator=(const TLS_Client& other) = delete;
162	TLS_Client& operator=(TLS_Client&& other) = delete;
163
164	std::string group() const override { return "tls"; }	1✔
165
166	std::string description() const override { return "Connect to a host using TLS/DTLS"; }	1✔
167
168	void go() override {	7✔
169	std::shared_ptr<Botan::TLS::Session_Manager> session_mgr;	7✔
170
171	auto callbacks = std::make_shared<Callbacks>(*this);	7✔
172
173	const std::string sessions_db = get_arg("session-db");	7✔
174	const std::string host = get_arg("host");	7✔
175	const uint16_t port = get_arg_u16("port");	7✔
176	const std::string transport = get_arg("type");	7✔
177	const std::string next_protos = get_arg("next-protocols");	7✔
178	const bool use_system_cert_store = flag_set("skip-system-cert-store") == false;	7✔
179	const std::string trusted_CAs = get_arg("trusted-cas");	7✔
180	const auto tls_version = get_arg("tls-version");	7✔
181
182	if(!sessions_db.empty()) {	7✔
183	#if defined(BOTAN_HAS_TLS_SQLITE3_SESSION_MANAGER)
184	const std::string sessions_passphrase = get_passphrase_arg("Session DB passphrase", "session-db-pass");	×
185	session_mgr.reset(	×
186	new Botan::TLS::Session_Manager_SQLite(sessions_passphrase, rng_as_shared(), sessions_db));	×
187	#else
188	error_output() << "Ignoring session DB file, sqlite not enabled\n";
189	#endif
190	}	×
191
192	if(!session_mgr) {	7✔
193	session_mgr = std::make_shared<Botan::TLS::Session_Manager_In_Memory>(rng_as_shared());	21✔
194	}
195
196	auto policy = load_tls_policy(get_arg("policy"));	14✔
197
198	if(transport != "tcp" && transport != "udp") {	7✔
199	throw CLI_Usage_Error("Invalid transport type '" + transport + "' for TLS");	×
200	}
201
202	const std::vector<std::string> protocols_to_offer = Command::split_on(next_protos, ',');	7✔
203
204	if(!policy) {	7✔
205	policy = std::make_shared<Botan::TLS::Policy>();	×
206	}
207
208	const bool use_tcp = (transport == "tcp");	7✔
209	Botan::TLS::Protocol_Version version = policy->latest_supported_version(!use_tcp);	7✔
210
211	if(tls_version != "default") {	7✔
212	if(tls_version == "1.2") {	7✔
213	version = use_tcp ? Botan::TLS::Protocol_Version::TLS_V12 : Botan::TLS::Protocol_Version::DTLS_V12;	2✔
214	} else if(tls_version == "1.3") {	5✔
215	version = use_tcp ? Botan::TLS::Protocol_Version::TLS_V13 : Botan::TLS::Protocol_Version::DTLS_V13;	5✔
216	} else {
217	error_output() << "Unknown TLS protocol version " << tls_version << '\n';	×
218	}
219	}
220
221	struct sockaddr_storage addrbuf;	7✔
222	std::string hostname;	7✔
223	if(!host.empty() && inet_pton(AF_INET, host.c_str(), &addrbuf) != 1 &&	14✔
224	inet_pton(AF_INET6, host.c_str(), &addrbuf) != 1) {	7✔
225	hostname = host;	7✔
226	}
227
228	m_sockfd = connect_to_host(host, port, use_tcp);	7✔
229
230	const auto client_crt_path = get_arg_maybe("client-cert");	7✔
231	const auto client_key_path = get_arg_maybe("client-cert-key");	7✔
232
233	auto psk = [this]() -> std::optional<Botan::secure_vector<uint8_t>> {	14✔
234	auto psk_hex = get_arg_maybe("psk");	7✔
235	if(psk_hex) {	7✔
236	return Botan::hex_decode_locked(psk_hex.value());	2✔
237	} else {
238	return {};	7✔
239	}
240	}();	14✔
241	const std::optional<std::string> psk_identity = get_arg_maybe("psk-identity");	7✔
242	const std::optional<std::string> psk_prf = get_arg_maybe("psk-prf");	7✔
243
244	auto creds = std::make_shared<Basic_Credentials_Manager>(use_system_cert_store,	7✔
245	trusted_CAs,
246	client_crt_path,
247	client_key_path,
248	std::move(psk),	7✔
249	psk_identity,
250	psk_prf);	7✔
251
252	Botan::TLS::Client client(callbacks,	7✔
253	session_mgr,
254	creds,
255	policy,
256	rng_as_shared(),	7✔
257	Botan::TLS::Server_Information(hostname, port),	7✔
258	version,
259	protocols_to_offer);	28✔
260
261	bool first_active = true;	7✔
262	bool we_closed = false;	7✔
263
264	while(!client.is_closed()) {	34✔
265	fd_set readfds;
266	FD_ZERO(&readfds);	578✔
267	FD_SET(m_sockfd, &readfds);	34✔
268
269	if(client.is_active()) {	34✔
270	FD_SET(STDIN_FILENO, &readfds);	21✔
271	if(first_active && !protocols_to_offer.empty()) {	21✔
272	std::string app = client.application_protocol();	×
273	if(!app.empty()) {	×
274	output() << "Server choose protocol: " << client.application_protocol() << "\n";	×
275	}
276	first_active = false;	×
277	}	×
278	}
279
280	struct timeval timeout = {1, 0};	34✔
281
282	::select(static_cast<int>(m_sockfd + 1), &readfds, nullptr, nullptr, &timeout);	34✔
283
284	if(FD_ISSET(m_sockfd, &readfds)) {	34✔
285	uint8_t buf[4 * 1024] = {0};	22✔
286
287	ssize_t got = ::read(m_sockfd, buf, sizeof(buf));	22✔
288
289	if(got == 0) {	22✔
290	output() << "EOF on socket\n";	×
291	break;	×
292	} else if(got == -1) {	22✔
293	output() << "Socket error: " << errno << " " << err_to_string(errno) << "\n";	×
294	continue;	×
295	}
296
297	if(flag_set("debug")) {	22✔
298	output() << ">> " << Botan::hex_encode(buf, got) << "\n";	×
299	}
300
301	client.received_data(buf, got);	22✔
302	}
303
304	if(FD_ISSET(STDIN_FILENO, &readfds)) {	34✔
305	uint8_t buf[1024] = {0};	14✔
306	ssize_t got = read(STDIN_FILENO, buf, sizeof(buf));	14✔
307
308	if(got == 0) {	14✔
309	output() << "EOF on stdin\n";	7✔
310	client.close();	7✔
311	we_closed = true;	7✔
312	break;	7✔
313	} else if(got == -1) {	7✔
314	output() << "Stdin error: " << errno << " " << err_to_string(errno) << "\n";	×
315	continue;	×
316	}
317
318	if(got == 2 && buf[1] == '\n') {	7✔
319	char cmd = buf[0];	×
320
321	if(cmd == 'R' \|\| cmd == 'r') {	×
322	output() << "Client initiated renegotiation\n";	×
323	client.renegotiate(cmd == 'R');	×
324	} else if(cmd == 'Q') {	×
325	output() << "Client initiated close\n";	×
326	client.close();	×
327	we_closed = true;
328	}
329	} else {
330	client.send(buf, got);	14✔
331	}
332	}
333
334	if(client.timeout_check()) {	27✔
335	output() << "Timeout detected\n";	×
336	}
337	}
338
339	set_return_code((we_closed \|\| callbacks->peer_closed()) ? 0 : 1);	7✔
340
341	::close(m_sockfd);	7✔
342	}	42✔
343
344	public:
345	using Command::flag_set;
346	using Command::output;
347
348	void send(std::span<const uint8_t> buf) const {	32✔
349	while(!buf.empty()) {	64✔
350	ssize_t sent = ::send(m_sockfd, buf.data(), buf.size(), MSG_NOSIGNAL);	32✔
351
352	if(sent == -1) {	32✔
353	if(errno == EINTR) {	×
354	sent = 0;
355	} else {
356	throw CLI_Error("Socket write failed errno=" + std::to_string(errno));	×
357	}
358	}
359
360	buf = buf.subspan(sent);	32✔
361	}
362	}	32✔
363
364	private:
365	static socket_type connect_to_host(const std::string& host, uint16_t port, bool tcp) {	7✔
366	addrinfo hints;	7✔
367	Botan::clear_mem(&hints, 1);	7✔
368	hints.ai_family = AF_UNSPEC;	7✔
369	hints.ai_socktype = tcp ? SOCK_STREAM : SOCK_DGRAM;	7✔
370	addrinfo res, rp = nullptr;	7✔
371
372	if(::getaddrinfo(host.c_str(), std::to_string(port).c_str(), &hints, &res) != 0) {	7✔
373	throw CLI_Error("getaddrinfo failed for " + host);	×
374	}
375
376	socket_type fd = 0;	7✔
377
378	for(rp = res; rp != nullptr; rp = rp->ai_next) {	14✔
379	fd = ::socket(rp->ai_family, rp->ai_socktype, rp->ai_protocol);	14✔
380
381	if(fd == invalid_socket()) {	14✔
382	continue;	×
383	}
384
385	if(::connect(fd, rp->ai_addr, static_cast<socklen_t>(rp->ai_addrlen)) != 0) {	14✔
386	::close(fd);	7✔
387	continue;	7✔
388	}
389
390	break;
391	}
392
393	::freeaddrinfo(res);	7✔
394
395	if(rp == nullptr) // no address succeeded	7✔
396	{
397	throw CLI_Error("connect failed");	×
398	}
399
400	return fd;	7✔
401	}
402
403	static void dgram_socket_write(int sockfd, const uint8_t buf[], size_t length) {
404	auto r = ::send(sockfd, buf, length, MSG_NOSIGNAL);
405
406	if(r == -1) {
407	throw CLI_Error("Socket write failed errno=" + std::to_string(errno));
408	}
409	}
410
411	socket_type m_sockfd = invalid_socket();
412	};
413
414	namespace {
415
416	std::ostream& Callbacks::output() {	1,631✔
417	return m_client_command.output();	1,631✔
418	}
419
420	bool Callbacks::flag_set(const std::string& flag_name) const {	39✔
421	return m_client_command.flag_set(flag_name);	39✔
422	}
423
424	void Callbacks::send(std::span<const uint8_t> buffer) {	32✔
425	m_client_command.send(buffer);	32✔
426	}
427
428	} // namespace
429
430	BOTAN_REGISTER_COMMAND("tls_client", TLS_Client);	8✔
431
432	} // namespace Botan_CLI
433
434	#endif

randombit / botan / 6430144375

Source File Press 'n' to go to next uncovered line, 'b' for previous

Source File
Press 'n' to go to next uncovered line, 'b' for previous