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/*
* PgBouncer - Lightweight connection pooler for PostgreSQL.
*
* Copyright (c) 2007-2009 Marko Kreen, Skype Technologies OÜ
*
* Permission to use, copy, modify, and/or distribute this software for any
* purpose with or without fee is hereby granted, provided that the above
* copyright notice and this permission notice appear in all copies.
*
* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
* ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
* ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
* OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
*/
/*
* SCRAM support
*/
extern int cf_scram_iterations;
void free_scram_state(ScramState *state);
typedef enum PasswordType {
PASSWORD_TYPE_PLAINTEXT = 0,
PASSWORD_TYPE_MD5,
PASSWORD_TYPE_SCRAM_SHA_256
} PasswordType;
PasswordType get_password_type(const char *shadow_pass);
/*
* Functions for communicating as a client with the server
*/
char *build_client_first_message(ScramState *state);
char *build_client_final_message(PgSocket *server,
const PgCredentials *credentials);
bool read_server_first_message(PgSocket *server, char *input);
bool read_server_final_message(PgSocket *server, char *input, char *ServerSignature);
bool verify_server_signature(PgSocket *server, const PgCredentials *credentials, const char *ServerSignature, bool *match);
/*
* Functions for communicating as a server to the client
*/
bool read_client_first_message(PgSocket *client, char *input);
bool read_client_final_message(PgSocket *client, const uint8_t *raw_input, char *input,
const char **client_final_nonce_p,
char **proof_p);
char *build_server_first_message(ScramState *state,
PgCredentials *user, const char *stored_secret);
char *build_server_final_message(PgSocket *client);
bool verify_final_nonce(const ScramState *state, const char *client_final_nonce);
bool verify_client_proof(PgSocket *client, const char *ClientProof);
bool scram_verify_plain_password(PgSocket *client,
const char *username, const char *password,
const char *secret);
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