diff options
Diffstat (limited to 'src/methods/xsalsa20_poly1305/xsalsa20_poly1305.c')
| -rw-r--r-- | src/methods/xsalsa20_poly1305/xsalsa20_poly1305.c | 76 |
1 files changed, 38 insertions, 38 deletions
diff --git a/src/methods/xsalsa20_poly1305/xsalsa20_poly1305.c b/src/methods/xsalsa20_poly1305/xsalsa20_poly1305.c index e11826f..f06e0f8 100644 --- a/src/methods/xsalsa20_poly1305/xsalsa20_poly1305.c +++ b/src/methods/xsalsa20_poly1305/xsalsa20_poly1305.c @@ -45,44 +45,44 @@ static bool method_create_by_name(const char *name, fastd_method_t **method UNUS static void method_destroy(fastd_method_t *method UNUSED) { } -static size_t method_key_length(fastd_context_t *ctx UNUSED, const fastd_method_t *method UNUSED) { +static size_t method_key_length(const fastd_method_t *method UNUSED) { return crypto_secretbox_xsalsa20poly1305_KEYBYTES; } -static fastd_method_session_state_t* method_session_init(fastd_context_t *ctx, const fastd_method_t *method UNUSED, const uint8_t *secret, bool initiator) { +static fastd_method_session_state_t* method_session_init(const fastd_method_t *method UNUSED, const uint8_t *secret, bool initiator) { fastd_method_session_state_t *session = malloc(sizeof(fastd_method_session_state_t)); - fastd_method_common_init(ctx, &session->common, initiator); + fastd_method_common_init(&session->common, initiator); memcpy(session->key, secret, crypto_secretbox_xsalsa20poly1305_KEYBYTES); return session; } -static fastd_method_session_state_t* method_session_init_compat(fastd_context_t *ctx, const fastd_method_t *method, const uint8_t *secret, size_t length, bool initiator) { +static fastd_method_session_state_t* method_session_init_compat(const fastd_method_t *method, const uint8_t *secret, size_t length, bool initiator) { if (length < crypto_secretbox_xsalsa20poly1305_KEYBYTES) - exit_bug(ctx, "xsalsa20-poly1305: tried to init with short secret"); + exit_bug("xsalsa20-poly1305: tried to init with short secret"); - return method_session_init(ctx, method, secret, initiator); + return method_session_init(method, secret, initiator); } -static bool method_session_is_valid(fastd_context_t *ctx, fastd_method_session_state_t *session) { - return (session && fastd_method_session_common_is_valid(ctx, &session->common)); +static bool method_session_is_valid(fastd_method_session_state_t *session) { + return (session && fastd_method_session_common_is_valid(&session->common)); } -static bool method_session_is_initiator(fastd_context_t *ctx UNUSED, fastd_method_session_state_t *session) { +static bool method_session_is_initiator(fastd_method_session_state_t *session) { return fastd_method_session_common_is_initiator(&session->common); } -static bool method_session_want_refresh(fastd_context_t *ctx, fastd_method_session_state_t *session) { - return fastd_method_session_common_want_refresh(ctx, &session->common); +static bool method_session_want_refresh(fastd_method_session_state_t *session) { + return fastd_method_session_common_want_refresh(&session->common); } -static void method_session_superseded(fastd_context_t *ctx, fastd_method_session_state_t *session) { - fastd_method_session_common_superseded(ctx, &session->common); +static void method_session_superseded(fastd_method_session_state_t *session) { + fastd_method_session_common_superseded(&session->common); } -static void method_session_free(fastd_context_t *ctx UNUSED, fastd_method_session_state_t *session) { +static void method_session_free(fastd_method_session_state_t *session) { if(session) { secure_memzero(session, sizeof(fastd_method_session_state_t)); free(session); @@ -96,30 +96,30 @@ static inline void memcpy_nonce(uint8_t *dst, const uint8_t *src) { dst[i] = src[COMMON_NONCEBYTES-i-1]; } -static inline void put_header(fastd_context_t *ctx, fastd_buffer_t *buffer, const uint8_t nonce[COMMON_NONCEBYTES], uint8_t flags) { - fastd_buffer_pull_head_from(ctx, buffer, &flags, 1); +static inline void put_header(fastd_buffer_t *buffer, const uint8_t nonce[COMMON_NONCEBYTES], uint8_t flags) { + fastd_buffer_pull_head_from(buffer, &flags, 1); - fastd_buffer_pull_head(ctx, buffer, COMMON_NONCEBYTES); + fastd_buffer_pull_head(buffer, COMMON_NONCEBYTES); memcpy_nonce(buffer->data, nonce); } -static inline void take_header(fastd_context_t *ctx, fastd_buffer_t *buffer, uint8_t nonce[COMMON_NONCEBYTES], uint8_t *flags) { +static inline void take_header(fastd_buffer_t *buffer, uint8_t nonce[COMMON_NONCEBYTES], uint8_t *flags) { memcpy_nonce(nonce, buffer->data ); - fastd_buffer_push_head(ctx, buffer, COMMON_NONCEBYTES); + fastd_buffer_push_head(buffer, COMMON_NONCEBYTES); - fastd_buffer_push_head_to(ctx, buffer, flags, 1); + fastd_buffer_push_head_to(buffer, flags, 1); } -static inline bool handle_header(fastd_context_t *ctx, const fastd_method_common_t *session, fastd_buffer_t *buffer, uint8_t nonce[COMMON_NONCEBYTES], uint8_t *flags, int64_t *age) { - take_header(ctx, buffer, nonce, flags); - return fastd_method_is_nonce_valid(ctx, session, nonce, age); +static inline bool handle_header(const fastd_method_common_t *session, fastd_buffer_t *buffer, uint8_t nonce[COMMON_NONCEBYTES], uint8_t *flags, int64_t *age) { + take_header(buffer, nonce, flags); + return fastd_method_is_nonce_valid(session, nonce, age); } -static bool method_encrypt(fastd_context_t *ctx, fastd_peer_t *peer UNUSED, fastd_method_session_state_t *session, fastd_buffer_t *out, fastd_buffer_t in) { - fastd_buffer_pull_head_zero(ctx, &in, crypto_secretbox_xsalsa20poly1305_ZEROBYTES); +static bool method_encrypt(fastd_peer_t *peer UNUSED, fastd_method_session_state_t *session, fastd_buffer_t *out, fastd_buffer_t in) { + fastd_buffer_pull_head_zero(&in, crypto_secretbox_xsalsa20poly1305_ZEROBYTES); - *out = fastd_buffer_alloc(ctx, in.len, 0, 0); + *out = fastd_buffer_alloc(in.len, 0, 0); uint8_t nonce[crypto_secretbox_xsalsa20poly1305_NONCEBYTES] __attribute__((aligned(8))) = {}; memcpy_nonce(nonce, session->common.send_nonce); @@ -128,24 +128,24 @@ static bool method_encrypt(fastd_context_t *ctx, fastd_peer_t *peer UNUSED, fast fastd_buffer_free(in); - fastd_buffer_push_head(ctx, out, crypto_secretbox_xsalsa20poly1305_BOXZEROBYTES); - put_header(ctx, out, session->common.send_nonce, 0); + fastd_buffer_push_head(out, crypto_secretbox_xsalsa20poly1305_BOXZEROBYTES); + put_header(out, session->common.send_nonce, 0); fastd_method_increment_nonce(&session->common); return true; } -static bool method_decrypt(fastd_context_t *ctx, fastd_peer_t *peer, fastd_method_session_state_t *session, fastd_buffer_t *out, fastd_buffer_t in) { +static bool method_decrypt(fastd_peer_t *peer, fastd_method_session_state_t *session, fastd_buffer_t *out, fastd_buffer_t in) { if (in.len < COMMON_HEADBYTES) return false; - if (!method_session_is_valid(ctx, session)) + if (!method_session_is_valid(session)) return false; uint8_t in_nonce[COMMON_NONCEBYTES]; uint8_t flags; int64_t age; - if (!handle_header(ctx, &session->common, &in, in_nonce, &flags, &age)) + if (!handle_header(&session->common, &in, in_nonce, &flags, &age)) return false; if (flags) @@ -154,27 +154,27 @@ static bool method_decrypt(fastd_context_t *ctx, fastd_peer_t *peer, fastd_metho uint8_t nonce[crypto_secretbox_xsalsa20poly1305_NONCEBYTES] __attribute__((aligned(8))) = {}; memcpy_nonce(nonce, in_nonce); - fastd_buffer_pull_head_zero(ctx, &in, crypto_secretbox_xsalsa20poly1305_BOXZEROBYTES); + fastd_buffer_pull_head_zero(&in, crypto_secretbox_xsalsa20poly1305_BOXZEROBYTES); - *out = fastd_buffer_alloc(ctx, in.len, 0, 0); + *out = fastd_buffer_alloc(in.len, 0, 0); if (crypto_secretbox_xsalsa20poly1305_open(out->data, in.data, in.len, nonce, session->key) != 0) { fastd_buffer_free(*out); /* restore input buffer */ - fastd_buffer_push_head(ctx, &in, crypto_secretbox_xsalsa20poly1305_BOXZEROBYTES); - put_header(ctx, &in, in_nonce, 0); + fastd_buffer_push_head(&in, crypto_secretbox_xsalsa20poly1305_BOXZEROBYTES); + put_header(&in, in_nonce, 0); return false; } fastd_buffer_free(in); - if (!fastd_method_reorder_check(ctx, peer, &session->common, in_nonce, age)) { + if (!fastd_method_reorder_check(peer, &session->common, in_nonce, age)) { fastd_buffer_free(*out); - *out = fastd_buffer_alloc(ctx, crypto_secretbox_xsalsa20poly1305_ZEROBYTES, 0, 0); + *out = fastd_buffer_alloc(crypto_secretbox_xsalsa20poly1305_ZEROBYTES, 0, 0); } - fastd_buffer_push_head(ctx, out, crypto_secretbox_xsalsa20poly1305_ZEROBYTES); + fastd_buffer_push_head(out, crypto_secretbox_xsalsa20poly1305_ZEROBYTES); return true; } |