mirror of
https://github.com/oxen-io/lokinet
synced 2023-12-14 06:53:00 +01:00
151 lines
5.2 KiB
C
151 lines
5.2 KiB
C
#include <llarp/crypto_async.h>
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#include <llarp/mem.h>
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#include <string.h>
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struct llarp_async_dh {
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llarp_dh_func client;
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llarp_dh_func server;
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struct llarp_threadpool *tp;
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struct llarp_ev_caller *caller;
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llarp_seckey_t ourkey;
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};
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struct llarp_dh_internal {
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llarp_pubkey_t theirkey;
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uint8_t *ourkey;
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llarp_tunnel_nounce_t nounce;
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struct llarp_dh_result result;
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llarp_dh_func func;
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};
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static void llarp_crypto_dh_work(void *user) {
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struct llarp_dh_internal *impl = (struct llarp_dh_internal *)user;
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impl->func(&impl->result.sharedkey, impl->theirkey, impl->nounce,
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impl->ourkey);
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}
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static void llarp_crypto_dh_result(struct llarp_ev_async_call *call) {
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struct llarp_dh_internal *impl = (struct llarp_dh_internal *)call->user;
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impl->result.hook(&impl->result);
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llarp_g_mem.free(impl);
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}
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static void llarp_async_dh_exec(struct llarp_async_dh *dh, llarp_dh_func func,
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llarp_pubkey_t theirkey,
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llarp_tunnel_nounce_t nounce,
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llarp_dh_complete_hook result, void *user) {
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struct llarp_dh_internal *impl =
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llarp_g_mem.alloc(sizeof(struct llarp_dh_internal), 32);
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struct llarp_thread_job job = {.caller = dh->caller,
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.data = impl,
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.user = impl,
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.work = &llarp_crypto_dh_work};
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memcpy(impl->theirkey, theirkey, sizeof(llarp_pubkey_t));
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memcpy(impl->nounce, nounce, sizeof(llarp_tunnel_nounce_t));
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impl->ourkey = dh->ourkey;
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impl->result.user = user;
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impl->result.hook = result;
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impl->func = func;
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llarp_threadpool_queue_job(dh->tp, job);
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}
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void llarp_async_client_dh(struct llarp_async_dh *dh, llarp_pubkey_t theirkey,
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llarp_tunnel_nounce_t nounce,
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llarp_dh_complete_hook result, void *user) {
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llarp_async_dh_exec(dh, dh->client, theirkey, nounce, result, user);
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}
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void llarp_async_server_dh(struct llarp_async_dh *dh, llarp_pubkey_t theirkey,
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llarp_tunnel_nounce_t nounce,
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llarp_dh_complete_hook result, void *user) {
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llarp_async_dh_exec(dh, dh->server, theirkey, nounce, result, user);
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}
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struct llarp_async_dh *llarp_async_dh_new(llarp_seckey_t ourkey,
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struct llarp_crypto *crypto,
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struct llarp_ev_loop *ev,
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struct llarp_threadpool *tp) {
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struct llarp_async_dh *dh =
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llarp_g_mem.alloc(sizeof(struct llarp_async_dh), 16);
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dh->client = crypto->dh_client;
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dh->server = crypto->dh_server;
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memcpy(dh->ourkey, ourkey, sizeof(llarp_seckey_t));
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dh->tp = tp;
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dh->caller = llarp_ev_prepare_async(ev, &llarp_crypto_dh_result);
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return dh;
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}
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void llarp_async_dh_free(struct llarp_async_dh **dh) {
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if (*dh) {
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llarp_ev_caller_stop((*dh)->caller);
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llarp_g_mem.free(*dh);
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*dh = NULL;
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}
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}
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struct llarp_async_cipher_internal {
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uint8_t *key;
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llarp_nounce_t nounce;
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struct llarp_cipher_result result;
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llarp_sym_cipher_func func;
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};
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struct llarp_async_cipher {
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llarp_sharedkey_t key;
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struct llarp_threadpool *tp;
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struct llarp_ev_caller *caller;
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llarp_sym_cipher_func func;
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};
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static void llarp_crypto_cipher_result(struct llarp_ev_async_call *job) {
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struct llarp_async_cipher_internal *impl =
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(struct llarp_async_cipher_internal *)job->user;
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impl->result.hook(&impl->result);
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llarp_g_mem.free(impl);
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}
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static void llarp_crypto_cipher_work(void *work) {
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struct llarp_async_cipher_internal *impl =
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(struct llarp_async_cipher_internal *)work;
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impl->func(impl->result.buff, impl->key, impl->nounce);
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}
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void llarp_async_cipher_queue_op(struct llarp_async_cipher *c,
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llarp_buffer_t *buff, llarp_nounce_t n,
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llarp_cipher_complete_hook h, void *user) {
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struct llarp_async_cipher_internal *impl =
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llarp_g_mem.alloc(sizeof(struct llarp_async_cipher_internal), 16);
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impl->key = c->key;
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memcpy(impl->nounce, n, sizeof(llarp_nounce_t));
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impl->result.user = user;
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impl->result.buff.base = buff->base;
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impl->result.buff.sz = buff->sz;
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impl->result.hook = h;
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impl->func = c->func;
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struct llarp_thread_job job = {.caller = c->caller,
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.data = impl,
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.user = impl,
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.work = &llarp_crypto_cipher_work};
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llarp_threadpool_queue_job(c->tp, job);
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}
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struct llarp_async_cipher *llarp_async_cipher_new(llarp_sharedkey_t key,
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struct llarp_crypto *crypto,
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struct llarp_ev_loop *ev,
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struct llarp_threadpool *tp) {
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struct llarp_async_cipher *cipher =
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llarp_g_mem.alloc(sizeof(struct llarp_async_cipher), 16);
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cipher->func = crypto->xchacha20;
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cipher->tp = tp;
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cipher->caller = llarp_ev_prepare_async(ev, &llarp_crypto_cipher_result);
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memcpy(cipher->key, key, sizeof(llarp_sharedkey_t));
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return cipher;
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}
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void llarp_async_cipher_free(struct llarp_async_cipher **c) {
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if (*c) {
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llarp_ev_caller_stop((*c)->caller);
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llarp_g_mem.free(*c);
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*c = NULL;
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}
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}
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