diff options
Diffstat (limited to 'src/config.c')
| -rw-r--r-- | src/config.c | 27 |
1 files changed, 27 insertions, 0 deletions
diff --git a/src/config.c b/src/config.c index ec04726..6296209 100644 --- a/src/config.c +++ b/src/config.c @@ -845,7 +845,31 @@ static void configure_user(fastd_context_t *ctx, fastd_config_t *conf) { conf->n_groups = ngroups; } } +} + +static void configure_method_parameters(fastd_context_t *ctx, fastd_config_t *conf) { + conf->max_packet_size = 0; + conf->min_encrypt_head_space = 0; + conf->min_decrypt_head_space = 0; + conf->min_encrypt_tail_space = 0; + conf->min_decrypt_tail_space = 0; + + int i; + for (i = 0; i < MAX_METHODS; i++) { + if (!conf->methods[i]) + break; + + conf->max_packet_size = max_size_t(conf->max_packet_size, conf->methods[i]->max_packet_size(ctx)); + conf->min_encrypt_head_space = max_size_t(conf->min_encrypt_head_space, conf->methods[i]->min_encrypt_head_space(ctx)); + conf->min_decrypt_head_space = max_size_t(conf->min_decrypt_head_space, conf->methods[i]->min_decrypt_head_space(ctx)); + conf->min_encrypt_tail_space = max_size_t(conf->min_encrypt_tail_space, conf->methods[i]->min_encrypt_tail_space(ctx)); + conf->min_decrypt_tail_space = max_size_t(conf->min_decrypt_tail_space, conf->methods[i]->min_decrypt_tail_space(ctx)); + } + conf->min_encrypt_head_space = alignto(conf->min_encrypt_head_space, 16); + + /* ugly hack to get alignment right for aes128-gcm, which needs data aligned to 16 and has a 24 byte header */ + conf->min_decrypt_head_space = alignto(conf->min_decrypt_head_space, 16) + 8; } void fastd_configure(fastd_context_t *ctx, fastd_config_t *conf, int argc, char *const argv[]) { @@ -902,6 +926,9 @@ void fastd_configure(fastd_context_t *ctx, fastd_config_t *conf, int argc, char exit_error(ctx, "config error: neither fixed peers nor peer dirs have been configured"); configure_user(ctx, conf); + + ctx->conf = conf; + configure_method_parameters(ctx, conf); } static void peer_dirs_read_peer_group(fastd_context_t *ctx, fastd_config_t *new_conf) { |