open-vault/builtin/logical/database/secret_creds.go
Chris Hoffman e4832fdbcf
Database Root Credential Rotation (#3976)
* redoing connection handling

* a little more cleanup

* empty implementation of rotation

* updating rotate signature

* signature update

* updating interfaces again :(

* changing back to interface

* adding templated url support and rotation for postgres

* adding correct username

* return updates

* updating statements to be a list

* adding error sanitizing middleware

* fixing log sanitizier

* adding postgres rotate test

* removing conf from rotate

* adding rotate command

* adding mysql rotate

* finishing up the endpoint in the db backend for rotate

* no more structs, just store raw config

* fixing tests

* adding db instance lock

* adding support for statement list in cassandra

* wip redoing interface to support BC

* adding falllback for Initialize implementation

* adding backwards compat for statements

* fix tests

* fix more tests

* fixing up tests, switching to new fields in statements

* fixing more tests

* adding mssql and mysql

* wrapping all the things in middleware, implementing templating for mongodb

* wrapping all db servers with error santizer

* fixing test

* store the name with the db instance

* adding rotate to cassandra

* adding compatibility translation to both server and plugin

* reordering a few things

* store the name with the db instance

* reordering

* adding a few more tests

* switch secret values from slice to map

* addressing some feedback

* reinstate execute plugin after resetting connection

* set database connection to closed

* switching secret values func to map[string]interface for potential future uses

* addressing feedback
2018-03-21 15:05:56 -04:00

112 lines
2.9 KiB
Go

package database
import (
"context"
"fmt"
"github.com/hashicorp/vault/logical"
"github.com/hashicorp/vault/logical/framework"
)
const SecretCredsType = "creds"
func secretCreds(b *databaseBackend) *framework.Secret {
return &framework.Secret{
Type: SecretCredsType,
Fields: map[string]*framework.FieldSchema{},
Renew: b.secretCredsRenew(),
Revoke: b.secretCredsRevoke(),
}
}
func (b *databaseBackend) secretCredsRenew() framework.OperationFunc {
return func(ctx context.Context, req *logical.Request, data *framework.FieldData) (*logical.Response, error) {
// Get the username from the internal data
usernameRaw, ok := req.Secret.InternalData["username"]
if !ok {
return nil, fmt.Errorf("secret is missing username internal data")
}
username, ok := usernameRaw.(string)
roleNameRaw, ok := req.Secret.InternalData["role"]
if !ok {
return nil, fmt.Errorf("could not find role with name: %s", req.Secret.InternalData["role"])
}
role, err := b.Role(ctx, req.Storage, roleNameRaw.(string))
if err != nil {
return nil, err
}
if role == nil {
return nil, fmt.Errorf("error during renew: could not find role with name %s", req.Secret.InternalData["role"])
}
f := framework.LeaseExtend(role.DefaultTTL, role.MaxTTL, b.System())
resp, err := f(ctx, req, data)
if err != nil {
return nil, err
}
// Get the Database object
db, err := b.GetConnection(ctx, req.Storage, role.DBName)
if err != nil {
return nil, err
}
db.RLock()
defer db.RUnlock()
// Make sure we increase the VALID UNTIL endpoint for this user.
if expireTime := resp.Secret.ExpirationTime(); !expireTime.IsZero() {
err := db.RenewUser(ctx, role.Statements, username, expireTime)
if err != nil {
b.CloseIfShutdown(db, err)
return nil, err
}
}
return resp, nil
}
}
func (b *databaseBackend) secretCredsRevoke() framework.OperationFunc {
return func(ctx context.Context, req *logical.Request, data *framework.FieldData) (*logical.Response, error) {
// Get the username from the internal data
usernameRaw, ok := req.Secret.InternalData["username"]
if !ok {
return nil, fmt.Errorf("secret is missing username internal data")
}
username, ok := usernameRaw.(string)
var resp *logical.Response
roleNameRaw, ok := req.Secret.InternalData["role"]
if !ok {
return nil, fmt.Errorf("no role name was provided")
}
role, err := b.Role(ctx, req.Storage, roleNameRaw.(string))
if err != nil {
return nil, err
}
if role == nil {
return nil, fmt.Errorf("error during revoke: could not find role with name %s", req.Secret.InternalData["role"])
}
// Get our connection
db, err := b.GetConnection(ctx, req.Storage, role.DBName)
if err != nil {
return nil, err
}
db.RLock()
defer db.RUnlock()
if err := db.RevokeUser(ctx, role.Statements, username); err != nil {
b.CloseIfShutdown(db, err)
return nil, err
}
return resp, nil
}
}