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sysadm |
1.1 |
#include "log.h"
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#include <stdio.h>
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#include <libssh/libssh.h>
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#include <libssh/server.h>
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#include <libssh/callbacks.h>
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static int ssh_auth_password_cb(ssh_session session, const char *user, const char *password, void *userdata)
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{
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if (strcmp(user, "test") == 0 && strcmp(password, "123456") == 0)
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{
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return SSH_AUTH_SUCCESS;
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}
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log_std("Debug: SSH Auth OK\n");
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return SSH_AUTH_DENIED;
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}
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int ssh_server(const char *hostaddr, unsigned int port)
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{
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ssh_bind sshbind;
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ssh_session session;
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ssh_channel channel;
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int ssh_log_level = SSH_LOG_PROTOCOL;
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struct ssh_server_callbacks_struct cb = {
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.userdata = NULL,
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.auth_password_function = ssh_auth_password_cb};
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ssh_init();
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sshbind = ssh_bind_new();
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if (ssh_bind_options_set(sshbind, SSH_BIND_OPTIONS_BINDADDR, hostaddr) < 0 ||
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ssh_bind_options_set(sshbind, SSH_BIND_OPTIONS_BINDPORT, &port) < 0 ||
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ssh_bind_options_set(sshbind, SSH_BIND_OPTIONS_HOSTKEY, "ssh_host_rsa_key") < 0 ||
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ssh_bind_options_set(sshbind, SSH_BIND_OPTIONS_LOG_VERBOSITY, &ssh_log_level) < 0)
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{
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log_error("Error setting SSH bind options: %s\n", ssh_get_error(sshbind));
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return -1;
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}
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if (ssh_bind_listen(sshbind) < 0)
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{
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log_error("Error listening at SSH server port: %s\n", ssh_get_error(sshbind));
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return -1;
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}
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while (1)
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{
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session = ssh_new();
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if (ssh_bind_accept(sshbind, session) != SSH_OK)
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{
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log_error("Error accept SSH connection: %s\n", ssh_get_error(sshbind));
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}
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ssh_callbacks_init(&cb);
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if (ssh_set_server_callbacks(session, &cb) != SSH_OK)
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{
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log_error("Error set SSH callback: %s\n", ssh_get_error(sshbind));
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}
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ssh_set_auth_methods(session, SSH_AUTH_METHOD_PASSWORD);
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if (ssh_handle_key_exchange(session) != SSH_OK)
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{
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log_error("Error exchanging SSH keys: %s\n", ssh_get_error(sshbind));
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ssh_disconnect(session);
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continue;
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}
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channel = ssh_channel_new(session);
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if (channel == NULL || ssh_channel_open_session(channel) != SSH_OK)
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{
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log_error("Error opening SSH channel: %s\n", ssh_get_error(sshbind));
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ssh_channel_free(channel);
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continue;
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}
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log_std("Debug: #\n");
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ssh_channel_close(channel);
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ssh_disconnect(session);
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ssh_free(session);
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}
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ssh_bind_free(sshbind);
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ssh_finalize();
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return 0;
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}
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int main(int argc, char *argv[])
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{
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if (log_begin("../log/bbsd.log", "../log/error.log") < 0)
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{
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printf("Open log error\n");
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return -1;
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}
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log_std_redirect(STDOUT_FILENO);
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log_err_redirect(STDERR_FILENO);
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ssh_server("0.0.0.0", 2322);
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log_end();
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return 0;
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}
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