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IOS/ES: Implement ES_DIGetTicketView #5002

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Mar 3, 2017
Merged

IOS/ES: Implement ES_DIGetTicketView #5002

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35 changes: 31 additions & 4 deletions Source/Core/Core/IOS/ES/ES.cpp
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Original file line number Diff line number Diff line change
Expand Up @@ -443,8 +443,6 @@ IPCCommandResult ES::IOCtlV(const IOCtlVRequest& request)
return Sign(request);
case IOCTL_ES_GETBOOT2VERSION:
return GetBoot2Version(request);

// Unsupported functions
case IOCTL_ES_DIGETTICKETVIEW:
return DIGetTicketView(request);
case IOCTL_ES_GETOWNEDTITLECNT:
Expand Down Expand Up @@ -1458,10 +1456,39 @@ IPCCommandResult ES::GetBoot2Version(const IOCtlVRequest& request)

IPCCommandResult ES::DIGetTicketView(const IOCtlVRequest& request)
{
if (!request.HasNumberOfValidVectors(0, 1) || request.io_vectors[0].size != 0xd8)
if (!request.HasNumberOfValidVectors(1, 1) ||
request.io_vectors[0].size != sizeof(IOS::ES::TicketView))
{
return GetDefaultReply(ES_PARAMETER_SIZE_OR_ALIGNMENT);
}

// TODO: unimplemented.
const bool has_ticket_vector = request.in_vectors[0].size == 0x2A4;

// This ioctlv takes either a signed ticket or no ticket, in which case the ticket size must be 0.
if (!has_ticket_vector && request.in_vectors[0].size != 0)
return GetDefaultReply(ES_PARAMETER_SIZE_OR_ALIGNMENT);

std::vector<u8> view;

// If no ticket was passed in, IOS returns the ticket view for the current title.
// Of course, this returns -1017 if no title is active and no ticket is passed.
if (!has_ticket_vector)
{
if (!s_title_context.active)
return GetDefaultReply(ES_PARAMETER_SIZE_OR_ALIGNMENT);

view = s_title_context.ticket.GetRawTicketView(0);
}
else
{
std::vector<u8> ticket_bytes(request.in_vectors[0].size);
Memory::CopyFromEmu(ticket_bytes.data(), request.in_vectors[0].address, ticket_bytes.size());
const IOS::ES::TicketReader ticket{std::move(ticket_bytes)};

view = ticket.GetRawTicketView(0);
}

Memory::CopyToEmu(request.io_vectors[0].address, view.data(), view.size());
return GetDefaultReply(IPC_SUCCESS);
}

Expand Down