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sysdeps/managarm: implement basic NVME_IOCTL_*s #1228

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Jan 20, 2025
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sysdeps/managarm: implement basic NVME_IOCTL_*s #1228

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57 changes: 57 additions & 0 deletions sysdeps/managarm/generic/ioctl.cpp
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Original file line number Diff line number Diff line change
Expand Up @@ -3,6 +3,7 @@
#include <linux/cdrom.h>
#include <linux/input.h>
#include <linux/kd.h>
#include <linux/nvme_ioctl.h>
#include <linux/sockios.h>
#include <linux/usb/cdc-wdm.h>
#include <linux/vt.h>
Expand Down Expand Up @@ -1093,6 +1094,62 @@ int sys_ioctl(int fd, unsigned long request, void *arg, int *result) {
*result = resp.result();
*param = resp.size();
return 0;
} else if (request == NVME_IOCTL_ID) {
managarm::fs::GenericIoctlRequest<MemoryAllocator> req(getSysdepsAllocator());
req.set_command(request);

auto [offer, send_ioctl_req, send_req, recv_resp] = exchangeMsgsSync(
handle,
helix_ng::offer(
helix_ng::sendBragiHeadOnly(ioctl_req, getSysdepsAllocator()),
helix_ng::sendBragiHeadOnly(req, getSysdepsAllocator()),
helix_ng::recvInline()
)
);

HEL_CHECK(offer.error());
HEL_CHECK(send_ioctl_req.error());
HEL_CHECK(send_req.error());
HEL_CHECK(recv_resp.error());

managarm::fs::GenericIoctlReply<MemoryAllocator> resp(getSysdepsAllocator());
resp.ParseFromArray(recv_resp.data(), recv_resp.length());
__ensure(resp.error() == managarm::fs::Errors::SUCCESS);
*result = resp.result();
return 0;
} else if (request == NVME_IOCTL_ADMIN_CMD) {
auto param = reinterpret_cast<struct nvme_admin_cmd *>(arg);

managarm::fs::GenericIoctlRequest<MemoryAllocator> req(getSysdepsAllocator());
req.set_command(request);

auto [offer, send_ioctl_req, send_req, send_buffer, send_data, recv_resp, recv_data] =
exchangeMsgsSync(
handle,
helix_ng::offer(
helix_ng::sendBragiHeadOnly(ioctl_req, getSysdepsAllocator()),
helix_ng::sendBragiHeadOnly(req, getSysdepsAllocator()),
helix_ng::sendBuffer(param, sizeof(*param)),
helix_ng::sendBuffer(reinterpret_cast<void *>(param->addr), param->data_len),
helix_ng::recvInline(),
helix_ng::recvBuffer(reinterpret_cast<void *>(param->addr), param->data_len)
)
);

HEL_CHECK(offer.error());
HEL_CHECK(send_ioctl_req.error());
HEL_CHECK(send_req.error());
HEL_CHECK(send_buffer.error());
HEL_CHECK(send_data.error());
HEL_CHECK(recv_resp.error());
HEL_CHECK(recv_data.error());

managarm::fs::GenericIoctlReply<MemoryAllocator> resp(getSysdepsAllocator());
resp.ParseFromArray(recv_resp.data(), recv_resp.length());
__ensure(resp.error() == managarm::fs::Errors::SUCCESS);
*result = resp.result();
param->result = resp.status();
return 0;
}

mlibc::infoLogger() << "mlibc: Unexpected ioctl with"
Expand Down
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