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auth.c
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auth.c
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/**
* Copyright Amazon.com, Inc. or its affiliates. All Rights Reserved.
* SPDX-License-Identifier: Apache-2.0.
*/
#include <aws/auth/auth.h>
#include <aws/auth/private/aws_signing.h>
#include <aws/cal/cal.h>
#include <aws/http/http.h>
#include <aws/sdkutils/sdkutils.h>
#include <aws/common/error.h>
#include <aws/common/json.h>
#define AWS_DEFINE_ERROR_INFO_AUTH(CODE, STR) AWS_DEFINE_ERROR_INFO(CODE, STR, "aws-c-auth")
/* clang-format off */
static struct aws_error_info s_errors[] = {
AWS_DEFINE_ERROR_INFO_AUTH(
AWS_AUTH_SIGNING_UNSUPPORTED_ALGORITHM,
"Attempt to sign an http request with an unsupported version of the AWS signing protocol"),
AWS_DEFINE_ERROR_INFO_AUTH(
AWS_AUTH_SIGNING_MISMATCHED_CONFIGURATION,
"Attempt to sign an http request with a signing configuration unrecognized by the invoked signer"),
AWS_DEFINE_ERROR_INFO_AUTH(
AWS_AUTH_SIGNING_NO_CREDENTIALS,
"Attempt to sign an http request without credentials"),
AWS_DEFINE_ERROR_INFO_AUTH(
AWS_AUTH_SIGNING_ILLEGAL_REQUEST_QUERY_PARAM,
"Attempt to sign an http request that includes a query param that signing may add"),
AWS_DEFINE_ERROR_INFO_AUTH(
AWS_AUTH_SIGNING_ILLEGAL_REQUEST_HEADER,
"Attempt to sign an http request that includes a header that signing may add"),
AWS_DEFINE_ERROR_INFO_AUTH(
AWS_AUTH_SIGNING_INVALID_CONFIGURATION,
"Attempt to sign an http request with an invalid signing configuration"),
AWS_DEFINE_ERROR_INFO_AUTH(
AWS_AUTH_CREDENTIALS_PROVIDER_INVALID_ENVIRONMENT,
"Valid credentials could not be sourced from process environment"),
AWS_DEFINE_ERROR_INFO_AUTH(
AWS_AUTH_CREDENTIALS_PROVIDER_INVALID_DELEGATE,
"Valid credentials could not be sourced from the provided vtable"),
AWS_DEFINE_ERROR_INFO_AUTH(
AWS_AUTH_CREDENTIALS_PROVIDER_PROFILE_SOURCE_FAILURE,
"Valid credentials could not be sourced by a profile provider"),
AWS_DEFINE_ERROR_INFO_AUTH(
AWS_AUTH_CREDENTIALS_PROVIDER_IMDS_SOURCE_FAILURE,
"Valid credentials could not be sourced by the IMDS provider"),
AWS_DEFINE_ERROR_INFO_AUTH(
AWS_AUTH_CREDENTIALS_PROVIDER_STS_SOURCE_FAILURE,
"Valid credentials could not be sourced by the STS provider"),
AWS_DEFINE_ERROR_INFO_AUTH(
AWS_AUTH_CREDENTIALS_PROVIDER_HTTP_STATUS_FAILURE,
"Unsuccessful status code returned from credentials-fetching http request"),
AWS_DEFINE_ERROR_INFO_AUTH(
AWS_AUTH_PROVIDER_PARSER_UNEXPECTED_RESPONSE,
"Invalid response document encountered while querying credentials via http"),
AWS_DEFINE_ERROR_INFO_AUTH(
AWS_AUTH_CREDENTIALS_PROVIDER_ECS_SOURCE_FAILURE,
"Valid credentials could not be sourced by the ECS provider"),
AWS_DEFINE_ERROR_INFO_AUTH(
AWS_AUTH_CREDENTIALS_PROVIDER_X509_SOURCE_FAILURE,
"Valid credentials could not be sourced by the X509 provider"),
AWS_DEFINE_ERROR_INFO_AUTH(
AWS_AUTH_CREDENTIALS_PROVIDER_PROCESS_SOURCE_FAILURE,
"Valid credentials could not be sourced by the process provider"),
AWS_DEFINE_ERROR_INFO_AUTH(
AWS_AUTH_CREDENTIALS_PROVIDER_STS_WEB_IDENTITY_SOURCE_FAILURE,
"Valid credentials could not be sourced by the sts web identity provider"),
AWS_DEFINE_ERROR_INFO_AUTH(
AWS_AUTH_SIGNING_UNSUPPORTED_SIGNATURE_TYPE,
"Attempt to sign using an unusupported signature type"),
AWS_DEFINE_ERROR_INFO_AUTH(
AWS_AUTH_SIGNING_MISSING_PREVIOUS_SIGNATURE,
"Attempt to sign a streaming item without supplying a previous signature"),
AWS_DEFINE_ERROR_INFO_AUTH(
AWS_AUTH_SIGNING_INVALID_CREDENTIALS,
"Attempt to perform a signing operation with invalid credentials"),
AWS_DEFINE_ERROR_INFO_AUTH(
AWS_AUTH_CANONICAL_REQUEST_MISMATCH,
"Expected canonical request did not match the computed canonical request"),
AWS_DEFINE_ERROR_INFO_AUTH(
AWS_AUTH_SIGV4A_SIGNATURE_VALIDATION_FAILURE,
"The supplied sigv4a signature was not a valid signature for the hashed string to sign"),
AWS_DEFINE_ERROR_INFO_AUTH(
AWS_AUTH_CREDENTIALS_PROVIDER_COGNITO_SOURCE_FAILURE,
"Valid credentials could not be sourced by the cognito provider"),
AWS_DEFINE_ERROR_INFO_AUTH(
AWS_AUTH_CREDENTIALS_PROVIDER_DELEGATE_FAILURE,
"Valid credentials could not be sourced by the delegate provider"),
AWS_DEFINE_ERROR_INFO_AUTH(
AWS_AUTH_SSO_TOKEN_PROVIDER_SOURCE_FAILURE,
"Valid token could not be sourced by the sso token provider"),
AWS_DEFINE_ERROR_INFO_AUTH(
AWS_AUTH_SSO_TOKEN_INVALID,
"Token sourced by the sso token provider is invalid."),
AWS_DEFINE_ERROR_INFO_AUTH(
AWS_AUTH_SSO_TOKEN_EXPIRED,
"Token sourced by the sso token provider is expired."),
AWS_DEFINE_ERROR_INFO_AUTH(
AWS_AUTH_CREDENTIALS_PROVIDER_SSO_SOURCE_FAILURE,
"Valid credentials could not be sourced by the sso credentials provider"),
AWS_DEFINE_ERROR_INFO_AUTH(
AWS_AUTH_IMDS_CLIENT_SOURCE_FAILURE,
"Failed to source the IMDS resource"),
AWS_DEFINE_ERROR_INFO_AUTH(
AWS_AUTH_PROFILE_STS_CREDENTIALS_PROVIDER_CYCLE_FAILURE,
"Failed to resolve credentials because the profile contains a cycle in the assumeRole chain.")
};
/* clang-format on */
static struct aws_error_info_list s_error_list = {
.error_list = s_errors,
.count = sizeof(s_errors) / sizeof(struct aws_error_info),
};
static struct aws_log_subject_info s_auth_log_subject_infos[] = {
DEFINE_LOG_SUBJECT_INFO(
AWS_LS_AUTH_GENERAL,
"AuthGeneral",
"Subject for aws-c-auth logging that defies categorization."),
DEFINE_LOG_SUBJECT_INFO(AWS_LS_AUTH_PROFILE, "AuthProfile", "Subject for config profile related logging."),
DEFINE_LOG_SUBJECT_INFO(
AWS_LS_AUTH_CREDENTIALS_PROVIDER,
"AuthCredentialsProvider",
"Subject for credentials provider related logging."),
DEFINE_LOG_SUBJECT_INFO(AWS_LS_AUTH_SIGNING, "AuthSigning", "Subject for AWS request signing logging."),
};
static struct aws_log_subject_info_list s_auth_log_subject_list = {
.subject_list = s_auth_log_subject_infos,
.count = AWS_ARRAY_SIZE(s_auth_log_subject_infos),
};
static bool s_library_initialized = false;
static struct aws_allocator *s_library_allocator = NULL;
void aws_auth_library_init(struct aws_allocator *allocator) {
if (s_library_initialized) {
return;
}
if (allocator) {
s_library_allocator = allocator;
} else {
s_library_allocator = aws_default_allocator();
}
aws_sdkutils_library_init(s_library_allocator);
aws_cal_library_init(s_library_allocator);
aws_http_library_init(s_library_allocator);
aws_register_error_info(&s_error_list);
aws_register_log_subject_info_list(&s_auth_log_subject_list);
AWS_FATAL_ASSERT(aws_signing_init_signing_tables(allocator) == AWS_OP_SUCCESS);
s_library_initialized = true;
}
void aws_auth_library_clean_up(void) {
if (!s_library_initialized) {
return;
}
s_library_initialized = false;
aws_signing_clean_up_signing_tables();
aws_unregister_log_subject_info_list(&s_auth_log_subject_list);
aws_unregister_error_info(&s_error_list);
aws_http_library_clean_up();
aws_cal_library_clean_up();
aws_sdkutils_library_clean_up();
s_library_allocator = NULL;
}