90 lines
3.0 KiB
C++
90 lines
3.0 KiB
C++
#include <security/pam_appl.h>
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#include <security/pam_client.h>
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#include <security/pam_ext.h>
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#include <security/pam_misc.h>
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#include <security/pam_modules.h>
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#include <rublon/init.hpp>
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#include <rublon/json.hpp>
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#include <rublon/pam.hpp>
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#include <rublon/rublon.hpp>
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#include <rublon/utils.hpp>
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#define DLL_PUBLIC __attribute__((visibility("default")))
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using namespace std;
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DLL_PUBLIC int pam_sm_setcred([[maybe_unused]] pam_handle_t * pamh,
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[[maybe_unused]] int flags,
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[[maybe_unused]] int argc,
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[[maybe_unused]] const char ** argv) {
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return PAM_SUCCESS;
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}
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DLL_PUBLIC int pam_sm_acct_mgmt([[maybe_unused]] pam_handle_t * pamh,
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[[maybe_unused]] int flags,
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[[maybe_unused]] int argc,
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[[maybe_unused]] const char ** argv) {
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return PAM_SUCCESS;
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}
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DLL_PUBLIC int
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pam_sm_authenticate(pam_handle_t * pamh, [[maybe_unused]] int flags, [[maybe_unused]] int argc, [[maybe_unused]] const char ** argv) {
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using namespace rublon;
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LinuxPam pam{pamh};
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auto rublonConfig = ConfigurationFactory{}.systemConfig();
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if(not rublonConfig.has_value()) {
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pam.print("Rublon configuration not exists");
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pam.print("Please create /etc/rublon.config file");
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return PAM_SUCCESS;
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}
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std::byte sharedMemory[32 * 1024] = {};
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std::pmr::monotonic_buffer_resource mr{sharedMemory, std::size(sharedMemory)};
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std::pmr::unsynchronized_pool_resource rublonPoolResource{&mr};
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std::pmr::set_default_resource(&rublonPoolResource);
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CoreHandler CH{rublonConfig.value()};
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auto selectMethod = [&](const MethodSelect & selector) { return selector.create(pam); };
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auto confirmMethod = [&](const PostMethod & confirm) { return confirm.fire(CH); };
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auto confirmCode = [&](const MethodProxy & method) { return method.fire(CH, pam); };
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auto allowLogin = [&](const AuthenticationStatus & status) -> tl::expected< int, Error > {
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if(status.userAuthorized()) {
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rublon::log(rublon::LogLevel::Info, "Auth OK");
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pam.print("RUBLON authentication SUCCESS!\n");
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return PAM_SUCCESS;
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} else {
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rublon::log(rublon::LogLevel::Info, "User unauthorized");
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pam.print("RUBLON authentication FAILED");
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return PAM_MAXTRIES;
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}
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};
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auto mapError = [&](const Error & error) -> tl::expected< int, Error > {
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rublon::log(
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LogLevel::Error, "auth problems due to %d class and %d category", error.errorClass(), static_cast< int >(error.category()));
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if(error.is< PamBaypass >()) {
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pam.print("\n RUBLON authentication bypased");
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return PAM_SUCCESS;
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}
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pam.print("RUBLON authentication FAILED");
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rublon::log(LogLevel::Warning, "User login failed");
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return PAM_MAXTRIES;
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};
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auto ret = Init{rublonConfig.value()}
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.fire(CH, pam) //
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.and_then(selectMethod)
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.and_then(confirmMethod)
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.and_then(confirmCode)
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.and_then(allowLogin)
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.or_else(mapError);
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return ret.value_or(PAM_MAXTRIES);
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}
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