All of your income IS taxable by Indiana since it is your resident state. But you'll be able to claim a credit on your Indiana return for the taxes you pay to non-resident states, so you won't be double-taxed.
Your resident state can tax all your income, regardless of where you earn it.
In TurboTax, be sure to complete both of your non-resident state tax returns before you do your Indiana return, so that the program can calculate and apply the credit.
**Answers are correct to the best of my ability but do not constitute tax or legal advice.
