diff options
Diffstat (limited to 'src/uanytun.c')
| -rw-r--r-- | src/uanytun.c | 25 |
1 files changed, 22 insertions, 3 deletions
diff --git a/src/uanytun.c b/src/uanytun.c index 55a73a2..14e0ab5 100644 --- a/src/uanytun.c +++ b/src/uanytun.c @@ -50,14 +50,20 @@ #include "encrypted_packet.h" #include "seq_window.h" -#include "key_derivation.h" + #include "cipher.h" +#ifndef NO_CRYPT +#include "key_derivation.h" #include "auth_algo.h" +#include <gcrypt.h> +#endif + + #include "daemon.h" #include "sysexec.h" -#include <gcrypt.h> +#ifndef NO_CRYPT #define MIN_GCRYPT_VERSION "1.2.0" @@ -83,6 +89,7 @@ int init_libgcrypt() log_printf(NOTICE, "libgcrypt init finished"); return 0; } +#endif int main_loop(tun_device_t* dev, udp_socket_t* sock, options_t* opt) { @@ -105,6 +112,7 @@ int main_loop(tun_device_t* dev, udp_socket_t* sock, options_t* opt) return_value = ret; } +#ifndef NO_CRYPT auth_algo_t aa; ret = auth_algo_init(&aa, opt->auth_algo_); if(ret) { @@ -125,6 +133,9 @@ int main_loop(tun_device_t* dev, udp_socket_t* sock, options_t* opt) log_printf(ERR, "could not initialize outbound key derivation of type %s", opt->kd_prf_); return_value = ret; } +#else + key_derivation_t kd_in, kd_out; +#endif seq_win_t seq_win; ret = seq_win_init(&seq_win, opt->seq_window_size_); @@ -175,7 +186,9 @@ int main_loop(tun_device_t* dev, udp_socket_t* sock, options_t* opt) cipher_encrypt(&c, &kd_out, &plain_packet, &encrypted_packet, seq_nr, opt->sender_id_, opt->mux_); seq_nr++; +#ifndef NO_CRYPT auth_algo_generate(&aa, &kd_out, &encrypted_packet); +#endif len = udp_write(sock, encrypted_packet_get_packet(&encrypted_packet), encrypted_packet_get_length(&encrypted_packet)); if(len == -1) @@ -190,11 +203,13 @@ int main_loop(tun_device_t* dev, udp_socket_t* sock, options_t* opt) } encrypted_packet_set_length(&encrypted_packet, len); - + +#ifndef NO_CRYPT if(!auth_algo_check_tag(&aa, &kd_out, &encrypted_packet)) { log_printf(WARNING, "wrong authentication tag, discarding packet"); continue; } +#endif if(encrypted_packet_get_mux(&encrypted_packet) != opt->mux_) continue; @@ -227,9 +242,11 @@ int main_loop(tun_device_t* dev, udp_socket_t* sock, options_t* opt) } cipher_close(&c); +#ifndef NO_CRYPT auth_algo_close(&aa); key_derivation_close(&kd_out); key_derivation_close(&kd_in); +#endif seq_win_clear(&seq_win); return return_value; @@ -274,12 +291,14 @@ int main(int argc, char* argv[]) log_printf(NOTICE, "just started..."); +#ifndef NO_CRYPT ret = init_libgcrypt(); if(ret) { log_printf(ERR, "error on libgcrpyt initialization, exitting"); options_clear(&opt); exit(ret); } +#endif tun_device_t dev; |