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Initial commit with PostgreSQL support
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,60 @@ | ||
| CC ?= gcc | ||
| CFLAGS_common = -Wall -Iinclude | ||
| CFLAGS_DEBUG = -g -O0 | ||
| CFLAGS_RELEASE = -O3 | ||
| SRC_DIR = src | ||
| OBJ_DIR_DEBUG = obj/debug | ||
| OBJ_DIR_RELEASE = obj/release | ||
| LIB_DIR = lib | ||
| TARGET_DEBUG = $(LIB_DIR)/libscram.a | ||
| TARGET_RELEASE = $(LIB_DIR)/libscram.a | ||
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| # Library directory passed as a parameter | ||
| LIBUSUAL_DIR ?= /path/to/libusual | ||
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| # OpenSSL dir | ||
| LIBOPENSSL_DIR ?= /path/to/openssl | ||
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| # PostgreSQL dir | ||
| POSTGRESQL_DIR ?= /path/to/postgresql | ||
| POSTGRESQL_INCLUDE_DIR = $(POSTGRESQL_DIR)/src/include/ | ||
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| # List all source files | ||
| SRC_FILES := $(wildcard $(SRC_DIR)/*.c) | ||
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| # Generate object file names | ||
| OBJ_FILES_DEBUG := $(patsubst $(SRC_DIR)/%.c,$(OBJ_DIR_DEBUG)/%.o,$(SRC_FILES)) | ||
| OBJ_FILES_RELEASE := $(patsubst $(SRC_DIR)/%.c,$(OBJ_DIR_RELEASE)/%.o,$(SRC_FILES)) | ||
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| # Check if ASAN is enabled | ||
| ifdef ASAN | ||
| CFLAGS_DEBUG += -fsanitize=address | ||
| endif | ||
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| # Define default target | ||
| all: $(TARGET_RELEASE) | ||
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| DEBUG: $(TARGET_DEBUG) | ||
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| RELEASE: $(TARGET_RELEASE) | ||
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| $(OBJ_DIR_DEBUG)/%.o: $(SRC_DIR)/%.c | ||
| @mkdir -p $(@D) | ||
| $(CC) $(CFLAGS_common) $(CFLAGS_DEBUG) -I$(LIBUSUAL_DIR) -I$(LIBOPENSSL_DIR) -I$(POSTGRESQL_INCLUDE_DIR) -c $< -o $@ | ||
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| $(OBJ_DIR_RELEASE)/%.o: $(SRC_DIR)/%.c | ||
| @mkdir -p $(@D) | ||
| $(CC) $(CFLAGS_common) $(CFLAGS_RELEASE) -I$(LIBUSUAL_DIR) -I$(LIBOPENSSL_DIR) -I$(POSTGRESQL_INCLUDE_DIR) -c $< -o $@ | ||
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| $(TARGET_DEBUG): $(OBJ_FILES_DEBUG) | ||
| @mkdir -p $(@D) | ||
| ar rcs $@ $^ | ||
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| $(TARGET_RELEASE): $(OBJ_FILES_RELEASE) | ||
| @mkdir -p $(@D) | ||
| ar rcs $@ $^ | ||
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| clean: | ||
| rm -rf $(OBJ_DIR_DEBUG)/* $(OBJ_DIR_RELEASE)/* $(LIB_DIR)/* | ||
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| .PHONY: all DEBUG RELEASE clean |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,19 @@ | ||
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| /* | ||
| * Required system headers | ||
| */ | ||
| #include <stdint.h> | ||
| #include <limits.h> | ||
| #include <stdbool.h> | ||
| #include <errno.h> | ||
| #include <assert.h> | ||
| #include <string.h> | ||
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| #define int8 int8_t | ||
| #define uint8 uint8_t | ||
| #define uint16 uint16_t | ||
| #define uint32 uint32_t | ||
| #define uint64 uint64_t | ||
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| #define SCRAM_KEY_LEN SCRAM_SHA_256_KEY_LEN | ||
| #define SCRAM_DEFAULT_ITERATIONS SCRAM_SHA_256_DEFAULT_ITERATIONS |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,129 @@ | ||
| /* | ||
| * 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. | ||
| */ | ||
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| /* | ||
| * Ought to match NAMEDATALEN. Some cloud services use longer user | ||
| * names, so give it some extra room. | ||
| */ | ||
| #define MAX_USERNAME 128 | ||
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| /* | ||
| * Some cloud services use very long generated passwords, so give it | ||
| * plenty of room. | ||
| */ | ||
| #define MAX_PASSWORD 2048 | ||
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| struct ScramState { | ||
| char* client_nonce; | ||
| char* client_first_message_bare; | ||
| char* client_final_message_without_proof; | ||
| char* server_nonce; | ||
| char* server_first_message; | ||
| uint8_t* SaltedPassword; | ||
| char cbind_flag; | ||
| bool adhoc; /* SCRAM data made up from plain-text password */ | ||
| int iterations; | ||
| char* salt; /* base64-encoded */ | ||
| uint8_t ClientKey[32]; /* SHA256_DIGEST_LENGTH */ | ||
| uint8_t StoredKey[32]; | ||
| uint8_t ServerKey[32]; | ||
| }; | ||
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| struct PgCredentials { | ||
| char name[MAX_USERNAME]; | ||
| char passwd[MAX_PASSWORD]; | ||
| uint8_t scram_ClientKey[32]; | ||
| uint8_t scram_ServerKey[32]; | ||
| bool has_scram_keys; /* true if the above two are valid */ | ||
| bool mock_auth; | ||
| }; | ||
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| typedef struct ScramState ScramState; | ||
| typedef struct PgCredentials PgCredentials; | ||
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| typedef enum PasswordType { | ||
| PASSWORD_TYPE_PLAINTEXT = 0, | ||
| PASSWORD_TYPE_MD5, | ||
| PASSWORD_TYPE_SCRAM_SHA_256 | ||
| } PasswordType; | ||
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| #ifdef __cplusplus | ||
| extern "C" { | ||
| #endif | ||
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| PasswordType get_password_type(const char* shadow_pass); | ||
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| // Returns the last error message | ||
| const char* scram_error(); | ||
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| // Resets the error message | ||
| void scram_reset_error(); | ||
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| // Initializes a new ScramState object | ||
| ScramState* scram_state_init(); | ||
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| // Frees the memory allocated for a ScramState object | ||
| void free_scram_state(ScramState* scram_state); | ||
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| /* | ||
| * Functions for communicating as a client with the server | ||
| */ | ||
| char *build_client_first_message(ScramState *scram_state); | ||
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| char *build_client_final_message(ScramState *scram_state, | ||
| const PgCredentials *credentials, | ||
| const char *server_nonce, | ||
| const char *salt, | ||
| int saltlen, | ||
| int iterations); | ||
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| bool read_server_first_message(ScramState* scram_state, char *input, | ||
| char **server_nonce_p, char **salt_p, int *saltlen_p, int *iterations_p); | ||
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| bool read_server_final_message(char *input, char *ServerSignature); | ||
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| bool verify_server_signature(ScramState *scram_state, const PgCredentials *credentials, const char *ServerSignature); | ||
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| /* | ||
| * Functions for communicating as a server to the client | ||
| */ | ||
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| bool read_client_first_message(char *input, | ||
| char *cbind_flag_p, | ||
| char **client_first_message_bare_p, | ||
| char **client_nonce_p); | ||
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| bool read_client_final_message(ScramState* scram_state, const uint8_t *raw_input, char *input, | ||
| const char **client_final_nonce_p, | ||
| char **proof_p); | ||
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| char *build_server_first_message(ScramState *scram_state, | ||
| const char *username, const char *stored_secret); | ||
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| char *build_server_final_message(ScramState *scram_state); | ||
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| bool verify_final_nonce(const ScramState *scram_state, const char *client_final_nonce); | ||
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| bool verify_client_proof(ScramState *state, const char *ClientProof); | ||
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| bool scram_verify_plain_password(const char *username, const char *password, const char *secret); | ||
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| #ifdef __cplusplus | ||
| } | ||
| #endif |
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