16263659650

Committed 14 Jul 2025 09:51AM UTC coverage: 90.624% (+0.001%) from 90.623%

Build # 16263659650

Build Type

Pull #4877

github

Committed by

web-flow

Commit Message

Merge b80c6178f into b71fdb4a3

Pull Request Pull Request #4877: Add FFI for X.509 creation

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80.45

/src/lib/ffi/ffi_cert.cpp

/*
* (C) 2015,2017,2018 Jack Lloyd
* (C) 2025 Dominik Schricker
*
* Botan is released under the Simplified BSD License (see license.txt)
*/

#include <botan/ffi.h>

#include <botan/internal/ffi_cert.h>
#include <botan/internal/ffi_oid.h>
#include <botan/internal/ffi_pkey.h>
#include <botan/internal/ffi_rng.h>
#include <botan/internal/ffi_util.h>
#include <botan/internal/ffi_x509_rpki.h>
#include <memory>

extern "C" {

using namespace Botan_FFI;

int botan_x509_cert_load_file(botan_x509_cert_t* cert_obj, const char* cert_path) {
   if(cert_obj == nullptr || cert_path == nullptr) {
      return BOTAN_FFI_ERROR_NULL_POINTER;
   }

#if defined(BOTAN_HAS_X509_CERTIFICATES) && defined(BOTAN_TARGET_OS_HAS_FILESYSTEM)

   return ffi_guard_thunk(__func__, [=]() -> int {
      auto c = std::make_unique<Botan::X509_Certificate>(cert_path);
      return ffi_new_object(cert_obj, std::move(c));
   });

#else
   return BOTAN_FFI_ERROR_NOT_IMPLEMENTED;
#endif
}

int botan_x509_cert_dup(botan_x509_cert_t* cert_obj, botan_x509_cert_t cert) {
   if(cert_obj == nullptr) {
      return BOTAN_FFI_ERROR_NULL_POINTER;
   }

#if defined(BOTAN_HAS_X509_CERTIFICATES) && defined(BOTAN_TARGET_OS_HAS_FILESYSTEM)

   return ffi_guard_thunk(__func__, [=]() -> int {
      auto c = std::make_unique<Botan::X509_Certificate>(safe_get(cert));
      return ffi_new_object(cert_obj, std::move(c));
   });

#else
   BOTAN_UNUSED(cert);
   return BOTAN_FFI_ERROR_NOT_IMPLEMENTED;
#endif
}

int botan_x509_cert_load(botan_x509_cert_t* cert_obj, const uint8_t cert_bits[], size_t cert_bits_len) {
   if(cert_obj == nullptr || cert_bits == nullptr) {
      return BOTAN_FFI_ERROR_NULL_POINTER;
   }

#if defined(BOTAN_HAS_X509_CERTIFICATES)
   return ffi_guard_thunk(__func__, [=]() -> int {
      Botan::DataSource_Memory bits(cert_bits, cert_bits_len);
      auto c = std::make_unique<Botan::X509_Certificate>(bits);
      return ffi_new_object(cert_obj, std::move(c));
   });
#else
   BOTAN_UNUSED(cert_bits_len);
   return BOTAN_FFI_ERROR_NOT_IMPLEMENTED;
#endif
}

int botan_x509_cert_get_public_key(botan_x509_cert_t cert, botan_pubkey_t* key) {
   if(key == nullptr) {
      return BOTAN_FFI_ERROR_NULL_POINTER;
   }

   *key = nullptr;

#if defined(BOTAN_HAS_X509_CERTIFICATES)
   return ffi_guard_thunk(__func__, [=]() -> int {
      auto public_key = safe_get(cert).subject_public_key();
      return ffi_new_object(key, std::move(public_key));
   });
#else
   BOTAN_UNUSED(cert);
   return BOTAN_FFI_ERROR_NOT_IMPLEMENTED;
#endif
}

int botan_x509_cert_get_issuer_dn(
   botan_x509_cert_t cert, const char* key, size_t index, uint8_t out[], size_t* out_len) {
#if defined(BOTAN_HAS_X509_CERTIFICATES)
   return BOTAN_FFI_VISIT(cert, [=](const auto& c) -> int {
      auto issuer_info = c.issuer_info(key);
      if(index < issuer_info.size()) {
         return write_str_output(out, out_len, c.issuer_info(key).at(index));
      } else {
         return BOTAN_FFI_ERROR_BAD_PARAMETER;
      }
   });
#else
   BOTAN_UNUSED(cert, key, index, out, out_len);
   return BOTAN_FFI_ERROR_NOT_IMPLEMENTED;
#endif
}

int botan_x509_cert_get_subject_dn(
   botan_x509_cert_t cert, const char* key, size_t index, uint8_t out[], size_t* out_len) {
#if defined(BOTAN_HAS_X509_CERTIFICATES)
   return BOTAN_FFI_VISIT(cert, [=](const auto& c) -> int {
      auto subject_info = c.subject_info(key);
      if(index < subject_info.size()) {
         return write_str_output(out, out_len, c.subject_info(key).at(index));
      } else {
         return BOTAN_FFI_ERROR_BAD_PARAMETER;
      }
   });
#else
   BOTAN_UNUSED(cert, key, index, out, out_len);
   return BOTAN_FFI_ERROR_NOT_IMPLEMENTED;
#endif
}

int botan_x509_cert_to_string(botan_x509_cert_t cert, char out[], size_t* out_len) {
#if defined(BOTAN_HAS_X509_CERTIFICATES)
   return copy_view_str(reinterpret_cast<uint8_t*>(out), out_len, botan_x509_cert_view_as_string, cert);
#else
   BOTAN_UNUSED(cert, out, out_len)
   return BOTAN_FFI_ERROR_NOT_IMPLEMENTED;
#endif
}

int botan_x509_cert_view_as_string(botan_x509_cert_t cert, botan_view_ctx ctx, botan_view_str_fn view) {
#if defined(BOTAN_HAS_X509_CERTIFICATES)
   return BOTAN_FFI_VISIT(cert, [=](const auto& c) { return invoke_view_callback(view, ctx, c.to_string()); });
#else
   BOTAN_UNUSED(cert, ctx, view);
   return BOTAN_FFI_ERROR_NOT_IMPLEMENTED;
#endif
}

int botan_x509_cert_view_pem(botan_x509_cert_t cert, botan_view_ctx ctx, botan_view_str_fn view) {
#if defined(BOTAN_HAS_X509_CERTIFICATES)
   return BOTAN_FFI_VISIT(cert, [=](const auto& c) { return invoke_view_callback(view, ctx, c.PEM_encode()); });
#else
   BOTAN_UNUSED(cert, ctx, view);
   return BOTAN_FFI_ERROR_NOT_IMPLEMENTED;
#endif
}

int botan_x509_cert_allowed_usage(botan_x509_cert_t cert, unsigned int key_usage) {
#if defined(BOTAN_HAS_X509_CERTIFICATES)
   return BOTAN_FFI_VISIT(cert, [=](const auto& c) -> int {
      const Botan::Key_Constraints k = static_cast<Botan::Key_Constraints>(key_usage);
      if(c.allowed_usage(k)) {
         return BOTAN_FFI_SUCCESS;
      }
      return 1;
   });
#else
   BOTAN_UNUSED(cert, key_usage);
   return BOTAN_FFI_ERROR_NOT_IMPLEMENTED;
#endif
}

int botan_x509_get_basic_constraints(botan_x509_cert_t cert, int* is_ca, size_t* limit) {
   if(is_ca == nullptr || limit == nullptr) {
      return BOTAN_FFI_ERROR_NULL_POINTER;
   }

#if defined(BOTAN_HAS_X509_CERTIFICATES)
   return BOTAN_FFI_VISIT(cert, [=](const auto& c) -> int {
      if(c.is_CA_cert()) {
         *is_ca = 1;
         *limit = c.path_limit();
      } else {
         *is_ca = 0;
         *limit = 0;
      }
      return BOTAN_FFI_SUCCESS;
   });
#else
   BOTAN_UNUSED(cert)
   return BOTAN_FFI_ERROR_NOT_IMPLEMENTED;
#endif
}

int botan_x509_get_key_constraints(botan_x509_cert_t cert, uint32_t* usage) {
   if(usage == nullptr) {
      return BOTAN_FFI_ERROR_NULL_POINTER;
   }

#if defined(BOTAN_HAS_X509_CERTIFICATES)
   return BOTAN_FFI_VISIT(cert, [=](const auto& c) -> int {
      *usage = c.constraints().value();
      return BOTAN_FFI_SUCCESS;
   });
#else
   BOTAN_UNUSED(cert)
   return BOTAN_FFI_ERROR_NOT_IMPLEMENTED;
#endif
}

int botan_x509_get_ocsp_responder(botan_x509_cert_t cert, botan_view_ctx ctx, botan_view_str_fn view) {
#if defined(BOTAN_HAS_X509_CERTIFICATES)
   return BOTAN_FFI_VISIT(cert,
                          [=](const auto& c) -> int { return invoke_view_callback(view, ctx, c.ocsp_responder()); });
#else
   BOTAN_UNUSED(cert, ctx, view)
   return BOTAN_FFI_ERROR_NOT_IMPLEMENTED;
#endif
}

int botan_x509_is_self_signed(botan_x509_cert_t cert, int* out) {
   if(out == nullptr) {
      return BOTAN_FFI_ERROR_NULL_POINTER;
   }

#if defined(BOTAN_HAS_X509_CERTIFICATES)
   return BOTAN_FFI_VISIT(cert, [=](const auto& c) {
      if(c.is_self_signed()) {
         *out = 1;
      } else {
         *out = 0;
      }
   });
#else
   BOTAN_UNUSED(cert, out)
   return BOTAN_FFI_ERROR_NOT_IMPLEMENTED;
#endif
}

int botan_x509_cert_destroy(botan_x509_cert_t cert) {
#if defined(BOTAN_HAS_X509_CERTIFICATES)
   return BOTAN_FFI_CHECKED_DELETE(cert);
#else
   BOTAN_UNUSED(cert);
   return BOTAN_FFI_ERROR_NOT_IMPLEMENTED;
#endif
}

int botan_x509_cert_get_time_starts(botan_x509_cert_t cert, char out[], size_t* out_len) {
#if defined(BOTAN_HAS_X509_CERTIFICATES)
   return BOTAN_FFI_VISIT(cert,
                          [=](const auto& c) { return write_str_output(out, out_len, c.not_before().to_string()); });
#else
   BOTAN_UNUSED(cert, out, out_len);
   return BOTAN_FFI_ERROR_NOT_IMPLEMENTED;
#endif
}

int botan_x509_cert_get_time_expires(botan_x509_cert_t cert, char out[], size_t* out_len) {
#if defined(BOTAN_HAS_X509_CERTIFICATES)
   return BOTAN_FFI_VISIT(cert,
                          [=](const auto& c) { return write_str_output(out, out_len, c.not_after().to_string()); });
#else
   BOTAN_UNUSED(cert, out, out_len);
   return BOTAN_FFI_ERROR_NOT_IMPLEMENTED;
#endif
}

int botan_x509_cert_not_before(botan_x509_cert_t cert, uint64_t* time_since_epoch) {
#if defined(BOTAN_HAS_X509_CERTIFICATES)
   return BOTAN_FFI_VISIT(cert, [=](const auto& c) { *time_since_epoch = c.not_before().time_since_epoch(); });
#else
   BOTAN_UNUSED(cert, time_since_epoch);
   return BOTAN_FFI_ERROR_NOT_IMPLEMENTED;
#endif
}

int botan_x509_cert_not_after(botan_x509_cert_t cert, uint64_t* time_since_epoch) {
#if defined(BOTAN_HAS_X509_CERTIFICATES)
   return BOTAN_FFI_VISIT(cert, [=](const auto& c) { *time_since_epoch = c.not_after().time_since_epoch(); });
#else
   BOTAN_UNUSED(cert, time_since_epoch);
   return BOTAN_FFI_ERROR_NOT_IMPLEMENTED;
#endif
}

int botan_x509_cert_get_serial_number(botan_x509_cert_t cert, uint8_t out[], size_t* out_len) {
#if defined(BOTAN_HAS_X509_CERTIFICATES)
   return BOTAN_FFI_VISIT(cert, [=](const auto& c) { return write_vec_output(out, out_len, c.serial_number()); });
#else
   BOTAN_UNUSED(cert, out, out_len);
   return BOTAN_FFI_ERROR_NOT_IMPLEMENTED;
#endif
}

int botan_x509_cert_get_fingerprint(botan_x509_cert_t cert, const char* hash, uint8_t out[], size_t* out_len) {
#if defined(BOTAN_HAS_X509_CERTIFICATES)
   return BOTAN_FFI_VISIT(cert, [=](const auto& c) { return write_str_output(out, out_len, c.fingerprint(hash)); });
#else
   BOTAN_UNUSED(cert, hash, out, out_len);
   return BOTAN_FFI_ERROR_NOT_IMPLEMENTED;
#endif
}

int botan_x509_cert_get_authority_key_id(botan_x509_cert_t cert, uint8_t out[], size_t* out_len) {
#if defined(BOTAN_HAS_X509_CERTIFICATES)
   return BOTAN_FFI_VISIT(cert, [=](const auto& c) { return write_vec_output(out, out_len, c.authority_key_id()); });
#else
   BOTAN_UNUSED(cert, out, out_len);
   return BOTAN_FFI_ERROR_NOT_IMPLEMENTED;
#endif
}

int botan_x509_cert_get_subject_key_id(botan_x509_cert_t cert, uint8_t out[], size_t* out_len) {
#if defined(BOTAN_HAS_X509_CERTIFICATES)
   return BOTAN_FFI_VISIT(cert, [=](const auto& c) { return write_vec_output(out, out_len, c.subject_key_id()); });
#else
   BOTAN_UNUSED(cert, out, out_len);
   return BOTAN_FFI_ERROR_NOT_IMPLEMENTED;
#endif
}

int botan_x509_cert_get_public_key_bits(botan_x509_cert_t cert, uint8_t out[], size_t* out_len) {
   return copy_view_bin(out, out_len, botan_x509_cert_view_public_key_bits, cert);
}

int botan_x509_cert_view_public_key_bits(botan_x509_cert_t cert, botan_view_ctx ctx, botan_view_bin_fn view) {
#if defined(BOTAN_HAS_X509_CERTIFICATES)
   return BOTAN_FFI_VISIT(cert,
                          [=](const auto& c) { return invoke_view_callback(view, ctx, c.subject_public_key_bits()); });
#else
   BOTAN_UNUSED(cert, ctx, view);
   return BOTAN_FFI_ERROR_NOT_IMPLEMENTED;
#endif
}

int botan_x509_cert_hostname_match(botan_x509_cert_t cert, const char* hostname) {
   if(hostname == nullptr) {
      return BOTAN_FFI_ERROR_NULL_POINTER;
   }

#if defined(BOTAN_HAS_X509_CERTIFICATES)
   return BOTAN_FFI_VISIT(cert, [=](const auto& c) { return c.matches_dns_name(hostname) ? 0 : -1; });
#else
   BOTAN_UNUSED(cert);
   return BOTAN_FFI_ERROR_NOT_IMPLEMENTED;
#endif
}

int botan_x509_cert_verify(int* result_code,
                           botan_x509_cert_t cert,
                           const botan_x509_cert_t* intermediates,
                           size_t intermediates_len,
                           const botan_x509_cert_t* trusted,
                           size_t trusted_len,
                           const char* trusted_path,
                           size_t required_strength,
                           const char* hostname_cstr,
                           uint64_t reference_time) {
   if(required_strength == 0) {
      required_strength = 110;
   }

#if defined(BOTAN_HAS_X509_CERTIFICATES)
   return ffi_guard_thunk(__func__, [=]() -> int {
      const std::string hostname((hostname_cstr == nullptr) ? "" : hostname_cstr);
      const Botan::Usage_Type usage = Botan::Usage_Type::UNSPECIFIED;
      const auto validation_time = reference_time == 0
                                      ? std::chrono::system_clock::now()
                                      : std::chrono::system_clock::from_time_t(static_cast<time_t>(reference_time));

      std::vector<Botan::X509_Certificate> end_certs;
      end_certs.push_back(safe_get(cert));
      for(size_t i = 0; i != intermediates_len; ++i) {
         end_certs.push_back(safe_get(intermediates[i]));
      }

      std::unique_ptr<Botan::Certificate_Store> trusted_from_path;
      std::unique_ptr<Botan::Certificate_Store_In_Memory> trusted_extra;
      std::vector<Botan::Certificate_Store*> trusted_roots;

      if(trusted_path && *trusted_path) {
         trusted_from_path = std::make_unique<Botan::Certificate_Store_In_Memory>(trusted_path);
         trusted_roots.push_back(trusted_from_path.get());
      }

      if(trusted_len > 0) {
         trusted_extra = std::make_unique<Botan::Certificate_Store_In_Memory>();
         for(size_t i = 0; i != trusted_len; ++i) {
            trusted_extra->add_certificate(safe_get(trusted[i]));
         }
         trusted_roots.push_back(trusted_extra.get());
      }

      Botan::Path_Validation_Restrictions restrictions(false, required_strength);

      auto validation_result =
         Botan::x509_path_validate(end_certs, restrictions, trusted_roots, hostname, usage, validation_time);

      if(result_code) {
         *result_code = static_cast<int>(validation_result.result());
      }

      if(validation_result.successful_validation()) {
         return 0;
      } else {
         return 1;
      }
   });
#else
   BOTAN_UNUSED(result_code, cert, intermediates, intermediates_len, trusted);
   BOTAN_UNUSED(trusted_len, trusted_path, hostname_cstr, reference_time);
   return BOTAN_FFI_ERROR_NOT_IMPLEMENTED;
#endif
}

const char* botan_x509_cert_validation_status(int code) {
   if(code < 0) {
      return nullptr;
   }

#if defined(BOTAN_HAS_X509_CERTIFICATES)
   Botan::Certificate_Status_Code sc = static_cast<Botan::Certificate_Status_Code>(code);
   return Botan::to_string(sc);
#else
   return nullptr;
#endif
}

int botan_x509_crl_load_file(botan_x509_crl_t* crl_obj, const char* crl_path) {
   if(crl_obj == nullptr || crl_path == nullptr) {
      return BOTAN_FFI_ERROR_NULL_POINTER;
   }

#if defined(BOTAN_HAS_X509_CERTIFICATES) && defined(BOTAN_TARGET_OS_HAS_FILESYSTEM)

   return ffi_guard_thunk(__func__, [=]() -> int {
      auto c = std::make_unique<Botan::X509_CRL>(crl_path);
      return ffi_new_object(crl_obj, std::move(c));
   });

#else
   return BOTAN_FFI_ERROR_NOT_IMPLEMENTED;
#endif
}

int botan_x509_crl_load(botan_x509_crl_t* crl_obj, const uint8_t crl_bits[], size_t crl_bits_len) {
   if(crl_obj == nullptr || crl_bits == nullptr) {
      return BOTAN_FFI_ERROR_NULL_POINTER;
   }

#if defined(BOTAN_HAS_X509_CERTIFICATES)
   return ffi_guard_thunk(__func__, [=]() -> int {
      Botan::DataSource_Memory bits(crl_bits, crl_bits_len);
      auto c = std::make_unique<Botan::X509_CRL>(bits);
      return ffi_new_object(crl_obj, std::move(c));
   });
#else
   BOTAN_UNUSED(crl_bits_len);
   return BOTAN_FFI_ERROR_NOT_IMPLEMENTED;
#endif
}

int botan_x509_crl_destroy(botan_x509_crl_t crl) {
#if defined(BOTAN_HAS_X509_CERTIFICATES)
   return BOTAN_FFI_CHECKED_DELETE(crl);
#else
   BOTAN_UNUSED(crl);
   return BOTAN_FFI_ERROR_NOT_IMPLEMENTED;
#endif
}

int botan_x509_is_revoked(botan_x509_crl_t crl, botan_x509_cert_t cert) {
#if defined(BOTAN_HAS_X509_CERTIFICATES)
   return BOTAN_FFI_VISIT(crl, [=](const auto& c) { return c.is_revoked(safe_get(cert)) ? 0 : -1; });
#else
   BOTAN_UNUSED(cert);
   BOTAN_UNUSED(crl);
   return BOTAN_FFI_ERROR_NOT_IMPLEMENTED;
#endif
}

int botan_x509_cert_verify_with_crl(int* result_code,
                                    botan_x509_cert_t cert,
                                    const botan_x509_cert_t* intermediates,
                                    size_t intermediates_len,
                                    const botan_x509_cert_t* trusted,
                                    size_t trusted_len,
                                    const botan_x509_crl_t* crls,
                                    size_t crls_len,
                                    const char* trusted_path,
                                    size_t required_strength,
                                    const char* hostname_cstr,
                                    uint64_t reference_time) {
   if(required_strength == 0) {
      required_strength = 110;
   }

#if defined(BOTAN_HAS_X509_CERTIFICATES)
   return ffi_guard_thunk(__func__, [=]() -> int {
      const std::string hostname((hostname_cstr == nullptr) ? "" : hostname_cstr);
      const Botan::Usage_Type usage = Botan::Usage_Type::UNSPECIFIED;
      const auto validation_time = reference_time == 0
                                      ? std::chrono::system_clock::now()
                                      : std::chrono::system_clock::from_time_t(static_cast<time_t>(reference_time));

      std::vector<Botan::X509_Certificate> end_certs;
      end_certs.push_back(safe_get(cert));
      for(size_t i = 0; i != intermediates_len; ++i) {
         end_certs.push_back(safe_get(intermediates[i]));
      }

      std::unique_ptr<Botan::Certificate_Store> trusted_from_path;
      std::unique_ptr<Botan::Certificate_Store_In_Memory> trusted_extra;
      std::unique_ptr<Botan::Certificate_Store_In_Memory> trusted_crls;
      std::vector<Botan::Certificate_Store*> trusted_roots;

      if(trusted_path && *trusted_path) {
         trusted_from_path = std::make_unique<Botan::Certificate_Store_In_Memory>(trusted_path);
         trusted_roots.push_back(trusted_from_path.get());
      }

      if(trusted_len > 0) {
         trusted_extra = std::make_unique<Botan::Certificate_Store_In_Memory>();
         for(size_t i = 0; i != trusted_len; ++i) {
            trusted_extra->add_certificate(safe_get(trusted[i]));
         }
         trusted_roots.push_back(trusted_extra.get());
      }

      if(crls_len > 0) {
         trusted_crls = std::make_unique<Botan::Certificate_Store_In_Memory>();
         for(size_t i = 0; i != crls_len; ++i) {
            trusted_crls->add_crl(safe_get(crls[i]));
         }
         trusted_roots.push_back(trusted_crls.get());
      }

      Botan::Path_Validation_Restrictions restrictions(false, required_strength);

      auto validation_result =
         Botan::x509_path_validate(end_certs, restrictions, trusted_roots, hostname, usage, validation_time);

      if(result_code) {
         *result_code = static_cast<int>(validation_result.result());
      }

      if(validation_result.successful_validation()) {
         return 0;
      } else {
         return 1;
      }
   });
#else
   BOTAN_UNUSED(result_code, cert, intermediates, intermediates_len, trusted);
   BOTAN_UNUSED(trusted_len, trusted_path, hostname_cstr, reference_time, crls, crls_len);
   return BOTAN_FFI_ERROR_NOT_IMPLEMENTED;
#endif
}

int botan_x509_cert_opts_destroy(botan_x509_cert_opts_t opts) {
#if defined(BOTAN_HAS_X509_CERTIFICATES)
   return BOTAN_FFI_CHECKED_DELETE(opts);
#else
   BOTAN_UNUSED(opts);
   return BOTAN_FFI_ERROR_NOT_IMPLEMENTED;
#endif
}

int botan_x509_ca_destroy(botan_x509_ca_t ca) {
#if defined(BOTAN_HAS_X509_CERTIFICATES)
   return BOTAN_FFI_CHECKED_DELETE(ca);
#else
   BOTAN_UNUSED(ca);
   return BOTAN_FFI_ERROR_NOT_IMPLEMENTED;
#endif
}

int botan_x509_pkcs10_req_destroy(botan_x509_pkcs10_req_t req) {
#if defined(BOTAN_HAS_X509_CERTIFICATES)
   return BOTAN_FFI_CHECKED_DELETE(req);
#else
   BOTAN_UNUSED(req);
   return BOTAN_FFI_ERROR_NOT_IMPLEMENTED;
#endif
}

int botan_x509_time_destroy(botan_x509_time_t time) {
#if defined(BOTAN_HAS_X509_CERTIFICATES)
   return BOTAN_FFI_CHECKED_DELETE(time);
#else
   BOTAN_UNUSED(time);
   return BOTAN_FFI_ERROR_NOT_IMPLEMENTED;
#endif
}

int botan_x509_create_cert_opts(botan_x509_cert_opts_t* opts_obj, const char* opts, uint32_t* expire_time) {
   if(opts_obj == nullptr || opts == nullptr) {
      return BOTAN_FFI_ERROR_NULL_POINTER;
   }

#if defined(BOTAN_HAS_X509_CERTIFICATES)
   return ffi_guard_thunk(__func__, [=]() -> int {
      std::unique_ptr<Botan::X509_Cert_Options> co;
      if(expire_time) {
         co = std::make_unique<Botan::X509_Cert_Options>(opts, *expire_time);
      } else {
         co = std::make_unique<Botan::X509_Cert_Options>(opts);
      }
      return ffi_new_object(opts_obj, std::move(co));
   });
#else
   BOTAN_UNUSED(expire_time);
   return BOTAN_FFI_ERROR_NOT_IMPLEMENTED;
#endif
}

#if defined(BOTAN_HAS_X509_CERTIFICATES)
   // NOLINTNEXTLINE(cppcoreguidelines-macro-usage)
   #define X509_GET_CERT_OPTS_STRING(FIELD_NAME)                                              \
      int botan_x509_cert_opts_##FIELD_NAME(botan_x509_cert_opts_t opts, const char* value) { \
         if(value == nullptr) {                                                               \
            return BOTAN_FFI_ERROR_NULL_POINTER;                                              \
         }                                                                                    \
         return ffi_guard_thunk(__func__, [=]() -> int {                                      \
            safe_get(opts).FIELD_NAME = value;                                                \
            return BOTAN_FFI_SUCCESS;                                                         \
         });                                                                                  \
      }
#else
   // NOLINTNEXTLINE(cppcoreguidelines-macro-usage)
   #define X509_GET_CERT_OPTS_STRING(FIELD_NAME)                                              \
      int botan_x509_cert_opts_##FIELD_NAME(botan_x509_cert_opts_t opts, const char* value) { \
         if(value == nullptr) {                                                               \
            return BOTAN_FFI_ERROR_NULL_POINTER;                                              \
         }                                                                                    \
         BOTAN_UNUSED(opts);                                                                  \
         return BOTAN_FFI_ERROR_NOT_IMPLEMENTED;                                              \
      }
#endif

X509_GET_CERT_OPTS_STRING(common_name)
X509_GET_CERT_OPTS_STRING(country)
X509_GET_CERT_OPTS_STRING(organization)
X509_GET_CERT_OPTS_STRING(org_unit)
X509_GET_CERT_OPTS_STRING(locality)
X509_GET_CERT_OPTS_STRING(state)
X509_GET_CERT_OPTS_STRING(serial_number)
X509_GET_CERT_OPTS_STRING(email)
X509_GET_CERT_OPTS_STRING(uri)
X509_GET_CERT_OPTS_STRING(ip)
X509_GET_CERT_OPTS_STRING(dns)
X509_GET_CERT_OPTS_STRING(xmpp)
X509_GET_CERT_OPTS_STRING(challenge)

#if defined(BOTAN_HAS_X509_CERTIFICATES)
   // NOLINTNEXTLINE(cppcoreguidelines-macro-usage)
   #define X509_GET_CERT_OPTS_VEC(FIELD_NAME)                                                              \
      int botan_x509_cert_opts_##FIELD_NAME(botan_x509_cert_opts_t opts, const char** value, size_t cnt) { \
         if(value == nullptr) {                                                                            \
            return BOTAN_FFI_ERROR_NULL_POINTER;                                                           \
         }                                                                                                 \
         return ffi_guard_thunk(__func__, [=]() -> int {                                                   \
            std::vector<std::string> val;                                                                  \
            for(size_t i = 0; i < cnt; i++) {                                                              \
               if(value[i] == nullptr) {                                                                   \
                  return BOTAN_FFI_ERROR_NULL_POINTER;                                                     \
               }                                                                                           \
               val.push_back(value[i]);                                                                    \
            }                                                                                              \
            safe_get(opts).FIELD_NAME = val;                                                               \
            return BOTAN_FFI_SUCCESS;                                                                      \
         });                                                                                               \
      }
#else
   // NOLINTNEXTLINE(cppcoreguidelines-macro-usage)
   #define X509_GET_CERT_OPTS_VEC(FIELD_NAME)                                                              \
      int botan_x509_cert_opts_##FIELD_NAME(botan_x509_cert_opts_t opts, const char** value, size_t cnt) { \
         if(value == nullptr) {                                                                            \
            return BOTAN_FFI_ERROR_NULL_POINTER;                                                           \
         }                                                                                                 \
         BOTAN_UNUSED(opts, cnt);                                                                          \
         return BOTAN_FFI_ERROR_NOT_IMPLEMENTED;                                                           \
      }
#endif

X509_GET_CERT_OPTS_VEC(more_org_units)
X509_GET_CERT_OPTS_VEC(more_dns)

int botan_x509_cert_opts_ca_key(botan_x509_cert_opts_t opts, size_t limit) {
#if defined(BOTAN_HAS_X509_CERTIFICATES)
   return BOTAN_FFI_VISIT(opts, [=](auto& o) { o.CA_key(limit); });
#else
   BOTAN_UNUSED(opts, limit);
   return BOTAN_FFI_ERROR_NOT_IMPLEMENTED;
#endif
}

int botan_x509_cert_opts_set_padding_scheme(botan_x509_cert_opts_t opts, const char* scheme) {
   if(scheme == nullptr) {
      return BOTAN_FFI_ERROR_NULL_POINTER;
   }

#if defined(BOTAN_HAS_X509_CERTIFICATES)
   return ffi_guard_thunk(__func__, [=]() -> int {
      safe_get(opts).set_padding_scheme(scheme);
      return BOTAN_FFI_SUCCESS;
   });
#else
   BOTAN_UNUSED(opts);
   return BOTAN_FFI_ERROR_NOT_IMPLEMENTED;
#endif
}

int botan_x509_cert_opts_not_before(botan_x509_cert_opts_t opts, botan_x509_time_t not_before) {
#if defined(BOTAN_HAS_X509_CERTIFICATES)
   return ffi_guard_thunk(__func__, [=]() -> int {
      safe_get(opts).start = safe_get(not_before);
      return BOTAN_FFI_SUCCESS;
   });
#else
   BOTAN_UNUSED(opts, not_before);
   return BOTAN_FFI_ERROR_NOT_IMPLEMENTED;
#endif
}

int botan_x509_cert_opts_not_after(botan_x509_cert_opts_t opts, botan_x509_time_t not_after) {
#if defined(BOTAN_HAS_X509_CERTIFICATES)
   return ffi_guard_thunk(__func__, [=]() -> int {
      safe_get(opts).end = safe_get(not_after);
      return BOTAN_FFI_SUCCESS;
   });
#else
   BOTAN_UNUSED(opts.not_after);
   return BOTAN_FFI_ERROR_NOT_IMPLEMENTED;
#endif
}

int botan_x509_cert_opts_add_constraints(botan_x509_cert_opts_t opts, uint32_t usage) {
#if defined(BOTAN_HAS_X509_CERTIFICATES)
   return BOTAN_FFI_VISIT(opts, [=](auto& o) { o.add_constraints(Botan::Key_Constraints(usage)); });
#else
   BOTAN_UNUSED(opts, usage);
   return BOTAN_FFI_ERROR_NOT_IMPLEMENTED;
#endif
}

int botan_x509_cert_opts_add_ex_constraint(botan_x509_cert_opts_t opts, botan_asn1_oid_t oid) {
#if defined(BOTAN_HAS_X509_CERTIFICATES)
   return ffi_guard_thunk(__func__, [=]() -> int {
      safe_get(opts).add_ex_constraint(safe_get(oid));
      return BOTAN_FFI_SUCCESS;
   });
#else
   BOTAN_UNUSED(opts, oid);
   return BOTAN_FFI_ERROR_NOT_IMPLEMENTED;
#endif
}

int botan_x509_create_time(botan_x509_time_t* time_obj, uint64_t time_since_epoch) {
   if(time_obj == nullptr) {
      return BOTAN_FFI_ERROR_NULL_POINTER;
   }
#if defined(BOTAN_HAS_X509_CERTIFICATES)
   return ffi_guard_thunk(__func__, [=]() -> int {
      auto tp = std::chrono::system_clock::time_point(std::chrono::seconds(time_since_epoch));
      auto time = std::make_unique<Botan::X509_Time>(tp);
      return ffi_new_object(time_obj, std::move(time));
   });
#else
   BOTAN_UNUSED(time_since_epoch);
   return BOTAN_FFI_ERROR_NOT_IMPLEMENTED;
#endif
}

int botan_x509_cert_opts_add_ext_ip_addr_blocks(botan_x509_cert_opts_t opts,
                                                botan_x509_ext_ip_addr_blocks_t ip_addr_blocks) {
#if defined(BOTAN_HAS_X509_CERTIFICATES)
   return ffi_guard_thunk(__func__, [=]() -> int {
      safe_get(opts).extensions.add(safe_get(ip_addr_blocks).copy());
      return BOTAN_FFI_SUCCESS;
   });
#else
   BOTAN_UNUSED(opts, as_blocks);
   return BOTAN_FFI_ERROR_NOT_IMPLEMENTED;
#endif
}

int botan_x509_cert_opts_add_ext_as_blocks(botan_x509_cert_opts_t opts, botan_x509_ext_as_blocks_t as_blocks) {
#if defined(BOTAN_HAS_X509_CERTIFICATES)
   return ffi_guard_thunk(__func__, [=]() -> int {
      safe_get(opts).extensions.add(safe_get(as_blocks).copy());
      return BOTAN_FFI_SUCCESS;
   });
#else
   BOTAN_UNUSED(opts, as_blocks);
   return BOTAN_FFI_ERROR_NOT_IMPLEMENTED;
#endif
}

int botan_x509_create_self_signed_cert(botan_x509_cert_t* cert_obj,
                                       botan_privkey_t key,
                                       botan_x509_cert_opts_t opts,
                                       const char* hash_fn,
                                       const char* sig_padding,
                                       botan_rng_t rng) {
   if(cert_obj == nullptr || hash_fn == nullptr || sig_padding == nullptr) {
      return BOTAN_FFI_ERROR_NULL_POINTER;
   }
#if defined(BOTAN_HAS_X509_CERTIFICATES)
   return ffi_guard_thunk(__func__, [=]() -> int {
      auto ca_cert = std::make_unique<Botan::X509_Certificate>(
         Botan::X509::create_self_signed_cert(safe_get(opts), safe_get(key), hash_fn, safe_get(rng)));
      return ffi_new_object(cert_obj, std::move(ca_cert));
   });
#else
   BOTAN_UNUSED(key, opts, rng);
   return BOTAN_FFI_ERROR_NOT_IMPLEMENTED;
#endif
}

int botan_x509_create_ca(botan_x509_ca_t* ca_obj,
                         botan_x509_cert_t ca_cert,
                         botan_privkey_t key,
                         const char* hash_fn,
                         const char* sig_padding,
                         botan_rng_t rng) {
   if(ca_obj == nullptr || hash_fn == nullptr || sig_padding == nullptr) {
      return BOTAN_FFI_ERROR_NULL_POINTER;
   }
#if defined(BOTAN_HAS_X509_CERTIFICATES)
   return ffi_guard_thunk(__func__, [=]() -> int {
      auto ca = std::make_unique<Botan::X509_CA>(safe_get(ca_cert), safe_get(key), hash_fn, sig_padding, safe_get(rng));
      return ffi_new_object(ca_obj, std::move(ca));
   });
#else
   BOTAN_UNUSED(ca_cert, key, rng);
   return BOTAN_FFI_ERROR_NOT_IMPLEMENTED;
#endif
}

int botan_x509_create_pkcs10_req(botan_x509_pkcs10_req_t* req_obj,
                                 botan_x509_cert_opts_t opts,
                                 botan_privkey_t key,
                                 const char* hash_fn,
                                 botan_rng_t rng) {
   if(req_obj == nullptr || hash_fn == nullptr) {
      return BOTAN_FFI_ERROR_NULL_POINTER;
   }
#if defined(BOTAN_HAS_X509_CERTIFICATES)
   return ffi_guard_thunk(__func__, [=]() -> int {
      auto req = std::make_unique<Botan::PKCS10_Request>(
         Botan::X509::create_cert_req(safe_get(opts), safe_get(key), hash_fn, safe_get(rng)));
      return ffi_new_object(req_obj, std::move(req));
   });
#else
   BOTAN_UNUSED(opts, key, rng);
   return BOTAN_FFI_ERROR_NOT_IMPLEMENTED;
#endif
}

int botan_x509_sign_req(botan_x509_cert_t* cert_obj,
                        botan_x509_ca_t ca,
                        botan_x509_pkcs10_req_t req,
                        botan_rng_t rng,
                        botan_x509_time_t not_before,
                        botan_x509_time_t not_after) {
   if(cert_obj == nullptr) {
      return BOTAN_FFI_ERROR_NULL_POINTER;
   }
#if defined(BOTAN_HAS_X509_CERTIFICATES)
   return ffi_guard_thunk(__func__, [=]() -> int {
      auto cert = std::make_unique<Botan::X509_Certificate>(safe_get<Botan::X509_CA>(ca).sign_request(
         safe_get(req), safe_get(rng), safe_get(not_before), safe_get(not_after)));
      return ffi_new_object(cert_obj, std::move(cert));
   });
#else
   BOTAN_UNUSED(ca, req, rng, not_before, not_after);
   return BOTAN_FFI_ERROR_NOT_IMPLEMENTED;
#endif
}
}

randombit / botan / 16263659650

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