diff options
Diffstat (limited to 'src/omemo')
| -rw-r--r-- | src/omemo/omemo.c | 141 | ||||
| -rw-r--r-- | src/omemo/omemo.h | 2 | ||||
| -rw-r--r-- | src/omemo/store.c | 14 | ||||
| -rw-r--r-- | src/omemo/store.h | 3 |
4 files changed, 105 insertions, 55 deletions
diff --git a/src/omemo/omemo.c b/src/omemo/omemo.c index b293022f..d649ff7e 100644 --- a/src/omemo/omemo.c +++ b/src/omemo/omemo.c @@ -25,6 +25,8 @@ static gboolean loaded; static void omemo_generate_short_term_crypto_materials(ProfAccount *account); +static void load_identity(void); +static void load_sessions(void); static void lock(void *user_data); static void unlock(void *user_data); static void omemo_log(int level, const char *message, size_t len, void *user_data); @@ -188,64 +190,19 @@ omemo_on_connect(ProfAccount *account) omemo_ctx.identity_keyfile = g_key_file_new(); if (g_key_file_load_from_file(omemo_ctx.identity_keyfile, omemo_ctx.identity_filename->str, G_KEY_FILE_KEEP_COMMENTS, NULL)) { - omemo_ctx.device_id = g_key_file_get_uint64(omemo_ctx.identity_keyfile, OMEMO_STORE_GROUP_IDENTITY, OMEMO_STORE_KEY_DEVICE_ID, NULL); - omemo_ctx.registration_id = g_key_file_get_uint64(omemo_ctx.identity_keyfile, OMEMO_STORE_GROUP_IDENTITY, OMEMO_STORE_KEY_REGISTRATION_ID, NULL); - - char *identity_key_public_b64 = g_key_file_get_string(omemo_ctx.identity_keyfile, OMEMO_STORE_GROUP_IDENTITY, OMEMO_STORE_KEY_IDENTITY_KEY_PUBLIC, NULL); - size_t identity_key_public_len; - unsigned char *identity_key_public = g_base64_decode(identity_key_public_b64, &identity_key_public_len); - omemo_ctx.identity_key_store.public = signal_buffer_create(identity_key_public, identity_key_public_len); - - char *identity_key_private_b64 = g_key_file_get_string(omemo_ctx.identity_keyfile, OMEMO_STORE_GROUP_IDENTITY, OMEMO_STORE_KEY_IDENTITY_KEY_PRIVATE, NULL); - size_t identity_key_private_len; - unsigned char *identity_key_private = g_base64_decode(identity_key_private_b64, &identity_key_private_len); - omemo_ctx.identity_key_store.private = signal_buffer_create(identity_key_private, identity_key_private_len); - signal_buffer_create(identity_key_private, identity_key_private_len); - - ec_public_key *public_key; - curve_decode_point(&public_key, identity_key_public, identity_key_public_len, omemo_ctx.signal); - ec_private_key *private_key; - curve_decode_private_point(&private_key, identity_key_private, identity_key_private_len, omemo_ctx.signal); - ratchet_identity_key_pair_create(&omemo_ctx.identity_key_pair, public_key, private_key); - - g_free(identity_key_public); - g_free(identity_key_private); - + load_identity(); omemo_generate_short_term_crypto_materials(account); } omemo_ctx.sessions_keyfile = g_key_file_new(); if (g_key_file_load_from_file(omemo_ctx.sessions_keyfile, omemo_ctx.sessions_filename->str, G_KEY_FILE_KEEP_COMMENTS, NULL)) { - int i; - char **groups = g_key_file_get_groups(omemo_ctx.sessions_keyfile, NULL); - for (i = 0; groups[i] != NULL; i++) { - int j; - GHashTable *device_store = NULL; - - device_store = g_hash_table_lookup(omemo_ctx.session_store, groups[i]); - if (!device_store) { - device_store = g_hash_table_new_full(g_direct_hash, g_direct_equal, NULL, (GDestroyNotify)signal_buffer_free); - g_hash_table_insert(omemo_ctx.session_store, groups[i], device_store); - } - - char **keys = g_key_file_get_keys(omemo_ctx.sessions_keyfile, groups[i], NULL, NULL); - for (j = 0; keys[j] != NULL; j++) { - uint32_t id = strtoul(keys[j], NULL, 10); - char *record_b64 = g_key_file_get_string(omemo_ctx.sessions_keyfile, groups[i], keys[j], NULL); - size_t record_len; - unsigned char *record = g_base64_decode(record_b64, &record_len); - signal_buffer *buffer = signal_buffer_create(record, record_len); - g_hash_table_insert(device_store, GINT_TO_POINTER(id), buffer); - } - } + load_sessions(); } } void omemo_generate_crypto_materials(ProfAccount *account) { - GError *error = NULL; - if (loaded) { return; } @@ -268,9 +225,7 @@ omemo_generate_crypto_materials(ProfAccount *account) g_key_file_set_string(omemo_ctx.identity_keyfile, OMEMO_STORE_GROUP_IDENTITY, OMEMO_STORE_KEY_IDENTITY_KEY_PRIVATE, identity_key_private); g_free(identity_key_private); - if (!g_key_file_save_to_file(omemo_ctx.identity_keyfile, omemo_ctx.identity_filename->str, &error)) { - log_error("Error saving OMEMO identity to: %s, %s", omemo_ctx.identity_filename->str, error->message); - } + omemo_identity_keyfile_save(); omemo_generate_short_term_crypto_materials(account); } @@ -427,6 +382,22 @@ omemo_set_device_list(const char *const jid, GList * device_list) } GKeyFile * +omemo_identity_keyfile(void) +{ + return omemo_ctx.identity_keyfile; +} + +void +omemo_identity_keyfile_save(void) +{ + GError *error = NULL; + + if (!g_key_file_save_to_file(omemo_ctx.identity_keyfile, omemo_ctx.identity_filename->str, &error)) { + log_error("Error saving OMEMO identity to: %s, %s", omemo_ctx.identity_filename->str, error->message); + } +} + +GKeyFile * omemo_sessions_keyfile(void) { return omemo_ctx.sessions_keyfile; @@ -802,3 +773,73 @@ free_omemo_key(omemo_key_t *key) free((void *)key->data); free(key); } + +static void +load_identity(void) +{ + omemo_ctx.device_id = g_key_file_get_uint64(omemo_ctx.identity_keyfile, OMEMO_STORE_GROUP_IDENTITY, OMEMO_STORE_KEY_DEVICE_ID, NULL); + omemo_ctx.registration_id = g_key_file_get_uint64(omemo_ctx.identity_keyfile, OMEMO_STORE_GROUP_IDENTITY, OMEMO_STORE_KEY_REGISTRATION_ID, NULL); + + char *identity_key_public_b64 = g_key_file_get_string(omemo_ctx.identity_keyfile, OMEMO_STORE_GROUP_IDENTITY, OMEMO_STORE_KEY_IDENTITY_KEY_PUBLIC, NULL); + size_t identity_key_public_len; + unsigned char *identity_key_public = g_base64_decode(identity_key_public_b64, &identity_key_public_len); + omemo_ctx.identity_key_store.public = signal_buffer_create(identity_key_public, identity_key_public_len); + + char *identity_key_private_b64 = g_key_file_get_string(omemo_ctx.identity_keyfile, OMEMO_STORE_GROUP_IDENTITY, OMEMO_STORE_KEY_IDENTITY_KEY_PRIVATE, NULL); + size_t identity_key_private_len; + unsigned char *identity_key_private = g_base64_decode(identity_key_private_b64, &identity_key_private_len); + omemo_ctx.identity_key_store.private = signal_buffer_create(identity_key_private, identity_key_private_len); + signal_buffer_create(identity_key_private, identity_key_private_len); + + ec_public_key *public_key; + curve_decode_point(&public_key, identity_key_public, identity_key_public_len, omemo_ctx.signal); + ec_private_key *private_key; + curve_decode_private_point(&private_key, identity_key_private, identity_key_private_len, omemo_ctx.signal); + ratchet_identity_key_pair_create(&omemo_ctx.identity_key_pair, public_key, private_key); + + g_free(identity_key_public); + g_free(identity_key_private); + + char **keys = g_key_file_get_keys(omemo_ctx.identity_keyfile, OMEMO_STORE_GROUP_TRUST, NULL, NULL); + if (keys) { + int i; + for (i = 0; keys[i] != NULL; i++) { + char *key_b64 = g_key_file_get_string(omemo_ctx.identity_keyfile, OMEMO_STORE_GROUP_TRUST, keys[i], NULL); + size_t key_len; + unsigned char *key = g_base64_decode(key_b64, &key_len); + signal_buffer *buffer = signal_buffer_create(key, key_len); + g_hash_table_insert(omemo_ctx.identity_key_store.trusted, keys[i], buffer); + free(key_b64); + } + } +} + +static void +load_sessions(void) +{ + int i; + char **groups = g_key_file_get_groups(omemo_ctx.sessions_keyfile, NULL); + if (groups) { + for (i = 0; groups[i] != NULL; i++) { + int j; + GHashTable *device_store = NULL; + + device_store = g_hash_table_lookup(omemo_ctx.session_store, groups[i]); + if (!device_store) { + device_store = g_hash_table_new_full(g_direct_hash, g_direct_equal, NULL, (GDestroyNotify)signal_buffer_free); + g_hash_table_insert(omemo_ctx.session_store, groups[i], device_store); + } + + char **keys = g_key_file_get_keys(omemo_ctx.sessions_keyfile, groups[i], NULL, NULL); + for (j = 0; keys[j] != NULL; j++) { + uint32_t id = strtoul(keys[j], NULL, 10); + char *record_b64 = g_key_file_get_string(omemo_ctx.sessions_keyfile, groups[i], keys[j], NULL); + size_t record_len; + unsigned char *record = g_base64_decode(record_b64, &record_len); + signal_buffer *buffer = signal_buffer_create(record, record_len); + g_hash_table_insert(device_store, GINT_TO_POINTER(id), buffer); + free(record_b64); + } + } + } +} diff --git a/src/omemo/omemo.h b/src/omemo/omemo.h index 88c6d27c..72d3d3aa 100644 --- a/src/omemo/omemo.h +++ b/src/omemo/omemo.h @@ -26,6 +26,8 @@ void omemo_signed_prekey(unsigned char **output, size_t *length); void omemo_signed_prekey_signature(unsigned char **output, size_t *length); void omemo_prekeys(GList **prekeys, GList **ids, GList **lengths); void omemo_set_device_list(const char *const jid, GList * device_list); +GKeyFile *omemo_identity_keyfile(void); +void omemo_identity_keyfile_save(void); GKeyFile *omemo_sessions_keyfile(void); void omemo_sessions_keyfile_save(void); char *omemo_fingerprint(const unsigned char *const identity_key_public, size_t len); diff --git a/src/omemo/store.c b/src/omemo/store.c index eee58e19..621c902c 100644 --- a/src/omemo/store.c +++ b/src/omemo/store.c @@ -26,7 +26,7 @@ signed_pre_key_store_new(void) void identity_key_store_new(identity_key_store_t *identity_key_store) { - identity_key_store->identity_key_store = g_hash_table_new_full(g_str_hash, g_str_equal, free, (GDestroyNotify)signal_buffer_free); + identity_key_store->trusted = g_hash_table_new_full(g_str_hash, g_str_equal, free, (GDestroyNotify)signal_buffer_free); identity_key_store->private = NULL; identity_key_store->public = NULL; } @@ -279,7 +279,13 @@ save_identity(const signal_protocol_address *address, uint8_t *key_data, char *node = g_strdup_printf("%s:%d", address->name, address->device_id); signal_buffer *buffer = signal_buffer_create(key_data, key_len); - g_hash_table_insert(identity_key_store->identity_key_store, node, buffer); + g_hash_table_insert(identity_key_store->trusted, strdup(node), buffer); + + char *key_b64 = g_base64_encode(key_data, key_len); + g_key_file_set_string(omemo_identity_keyfile(), OMEMO_STORE_GROUP_TRUST, node, key_b64); + + omemo_identity_keyfile_save(); + free(node); return SG_SUCCESS; } @@ -292,9 +298,9 @@ is_trusted_identity(const signal_protocol_address *address, uint8_t *key_data, char *node = g_strdup_printf("%s:%d", address->name, address->device_id); signal_buffer *buffer = signal_buffer_create(key_data, key_len); - signal_buffer *original = g_hash_table_lookup(identity_key_store->identity_key_store, node); + signal_buffer *original = g_hash_table_lookup(identity_key_store->trusted, node); - return original == NULL || signal_buffer_compare(buffer, original) == 0; + return original != NULL && signal_buffer_compare(buffer, original) == 0; } int diff --git a/src/omemo/store.h b/src/omemo/store.h index 986b7c42..03800f84 100644 --- a/src/omemo/store.h +++ b/src/omemo/store.h @@ -3,6 +3,7 @@ #include "config.h" #define OMEMO_STORE_GROUP_IDENTITY "identity" +#define OMEMO_STORE_GROUP_TRUST "trust" #define OMEMO_STORE_KEY_DEVICE_ID "device_id" #define OMEMO_STORE_KEY_REGISTRATION_ID "registration_id" #define OMEMO_STORE_KEY_IDENTITY_KEY_PUBLIC "identity_key_public" @@ -12,7 +13,7 @@ typedef struct { signal_buffer *public; signal_buffer *private; uint32_t registration_id; - GHashTable * identity_key_store; + GHashTable *trusted; } identity_key_store_t; GHashTable * session_store_new(void); |