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wlan: map u80211/drv errors into astral errnos

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Matheus
2026-09-14 09:14:34 -03:00
parent f7b4348384
commit 5b088742de
1 changed files with 60 additions and 22 deletions
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kernel-src/io/net/wlan.c
+60 -22
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@@ -25,8 +25,6 @@ typedef struct {
// TODO: handle hotplug
// TODO: in u80211_drv *_tx_buffer ops, pass device handle
// TODO: change how netdesc_t is handled in kernel overall (?)
// TODO: map u80211 errors to errnos
// TODO: map u80211 errors to u80211_drv errors
// TODO: general netdev cleanup:
// - use struct ops instead of having function pointers in netdev struct
// - proper initialize() function
@@ -52,13 +50,55 @@ static void free_id(int id) {
__atomic_fetch_and(&id_bitmap, ~(1lu << id), __ATOMIC_RELAXED);
}
static int u80211_status_to_errno(int status) {
switch (status) {
case U80211_STATUS_SUCCESS:
return 0;
case U80211_STATUS_ENOMEM:
return ENOMEM;
case U80211_STATUS_UNSUPPORTED:
return EOPNOTSUPP;
case U80211_STATUS_NOT_ENOUGH_SPACE:
return ENOBUFS;
case U80211_STATUS_BUSY:
return EBUSY;
case U80211_STATUS_NOT_PERMITTED:
return EPERM;
case U80211_STATUS_RETRY:
return EAGAIN;
case U80211_STATUS_REJECTED:
return ECONNREFUSED;
case U80211_STATUS_TIMED_OUT:
return ETIMEDOUT;
case U80211_STATUS_NOT_ASSOCIATED:
return ENOTCONN;
default:
return EIO;
}
}
static int u80211_drv_status_to_u80211_status(int status) {
switch (status) {
case U80211_DRV_STATUS_SUCCESS:
return U80211_STATUS_SUCCESS;
case U80211_DRV_STATUS_NO_MATCH:
case U80211_DRV_STATUS_NOT_SUPPORTED:
return U80211_STATUS_UNSUPPORTED;
case U80211_DRV_STATUS_TIMEOUT:
return U80211_STATUS_TIMED_OUT;
case U80211_DRV_STATUS_OUT_OF_MEMORY:
return U80211_STATUS_ENOMEM;
default:
return U80211_STATUS_UNKNOWN_ERROR;
}
}
static int allocate_tx_buffer(void *driver_data, size_t size, u80211_tx_buffer_descriptor_t *buffer_descriptor) {
wlan_device_t *wlan = driver_data;
buffer_descriptor->size = size;
buffer_descriptor->current_offset = size;
return wlan->ops->allocate_tx_buffer(size, &buffer_descriptor->data) == U80211_DRV_STATUS_SUCCESS ?
U80211_STATUS_SUCCESS : U80211_STATUS_UNKNOWN_ERROR;
return u80211_drv_status_to_u80211_status(wlan->ops->allocate_tx_buffer(size, &buffer_descriptor->data));
}
static int free_tx_buffer(void *driver_data, u80211_tx_buffer_descriptor_t *buffer_descriptor) {
@@ -101,15 +141,15 @@ static int transmit(void *driver_data, u80211_tx_buffer_descriptor_t *buffer_des
return status;
}
return wlan->ops->transmit(wlan->driver_handle, buffer_descriptor->data, buffer_descriptor->size, buffer_descriptor->current_offset, &drv_options) == U80211_DRV_STATUS_SUCCESS ?
U80211_STATUS_SUCCESS : U80211_STATUS_UNKNOWN_ERROR;
return u80211_drv_status_to_u80211_status(wlan->ops->transmit(wlan->driver_handle,
buffer_descriptor->data, buffer_descriptor->size, buffer_descriptor->current_offset,
&drv_options));
}
static int set_channel(void *driver_data, int channel) {
wlan_device_t *wlan = driver_data;
return wlan->ops->set_channel(wlan->driver_handle, channel) == U80211_DRV_STATUS_SUCCESS ?
U80211_STATUS_SUCCESS : U80211_STATUS_UNKNOWN_ERROR;
return u80211_drv_status_to_u80211_status(wlan->ops->set_channel(wlan->driver_handle, channel));
}
static int set_key(void *driver_data, const u80211_key_t *key) {
@@ -127,8 +167,7 @@ static int set_key(void *driver_data, const u80211_key_t *key) {
if (status != U80211_STATUS_SUCCESS)
return status;
return wlan->ops->set_key(wlan->driver_handle, &drv_key) == U80211_DRV_STATUS_SUCCESS ?
U80211_STATUS_SUCCESS : U80211_STATUS_UNKNOWN_ERROR;
return u80211_drv_status_to_u80211_status(wlan->ops->set_key(wlan->driver_handle, &drv_key));
}
static int del_key(void *driver_data, uint8_t index, const u80211_mac_address_t *peer, uint32_t flags) {
@@ -136,8 +175,7 @@ static int del_key(void *driver_data, uint8_t index, const u80211_mac_address_t
(void)flags;
wlan_device_t *wlan = driver_data;
return wlan->ops->del_key(wlan->driver_handle, index) == U80211_DRV_STATUS_SUCCESS ?
U80211_STATUS_SUCCESS : U80211_STATUS_UNKNOWN_ERROR;
return u80211_drv_status_to_u80211_status(wlan->ops->del_key(wlan->driver_handle, index));
}
static u80211_device_ops_t ops = {
@@ -158,7 +196,7 @@ static int wlan_alloc_desc(netdev_t *netdev, size_t requested_size, netdesc_t *d
u80211_tx_buffer_descriptor_t u80211_desc;
int status = u80211_allocate_tx_buffer(wlan->u80211_device, &u80211_desc);
if (status != U80211_STATUS_SUCCESS)
return EINVAL;
return u80211_status_to_errno(status);
desc->address = u80211_desc.data;
// the network stack writes forward from curroffset. u80211 builds backward from the end.
@@ -187,7 +225,7 @@ static int wlan_send_packet(netdev_t *netdev, netdesc_t desc, mac_t target, int
.size = desc.size
};
return u80211_transmit_buffer(wlan->u80211_device, &descriptor) == U80211_STATUS_SUCCESS ? 0 : EINVAL;
return u80211_status_to_errno(u80211_transmit_buffer(wlan->u80211_device, &descriptor));
}
int wlan_register(void *handle, const u80211_drv_device_metadata_t *drv_metadata, const u80211_drv_device_ops_t *drv_ops, u80211_drv_network_device_handle_t *network_device) {
@@ -225,7 +263,7 @@ int wlan_register(void *handle, const u80211_drv_device_metadata_t *drv_metadata
free_id(wlan->id);
hashtable_destroy(&wlan->netdev.arpcache);
free(wlan);
return EINVAL;
return u80211_status_to_errno(status);
}
char name[10];
@@ -254,13 +292,13 @@ void wlan_process_packet(u80211_drv_network_device_handle_t handle, void *packet
int wlan_active_scan(netdev_t *netdev) {
wlan_device_t *wlan = (wlan_device_t *)netdev;
return u80211_scan(wlan->u80211_device) == U80211_STATUS_SUCCESS ? 0 : EINVAL;
return u80211_status_to_errno(u80211_scan(wlan->u80211_device));
}
int wlan_wait_for_scan(netdev_t *netdev) {
wlan_device_t *wlan = (wlan_device_t *)netdev;
return u80211_wait_for_scan_completion(wlan->u80211_device) == U80211_STATUS_SUCCESS ? 0 : EINVAL;
return u80211_status_to_errno(u80211_wait_for_scan_completion(wlan->u80211_device));
}
typedef struct {
@@ -350,7 +388,7 @@ int wlan_associate(netdev_t *netdev, uint8_t bssid[6], void *ie, size_t ie_size)
if (ap == NULL)
return EINVAL;
int error = u80211_associate(wlan->u80211_device, ap, ie, ie_size) == U80211_STATUS_SUCCESS ? 0 : EINVAL;
int error = u80211_status_to_errno(u80211_associate(wlan->u80211_device, ap, ie, ie_size));
u80211_ap_release(ap);
return error;
}
@@ -358,13 +396,13 @@ int wlan_associate(netdev_t *netdev, uint8_t bssid[6], void *ie, size_t ie_size)
int wlan_associate_wait(netdev_t *netdev) {
wlan_device_t *wlan = (wlan_device_t *)netdev;
return u80211_wait_for_association_completion(wlan->u80211_device) == U80211_STATUS_SUCCESS ? 0 : EINVAL;
return u80211_status_to_errno(u80211_wait_for_association_completion(wlan->u80211_device));
}
int wlan_disassociate(netdev_t *netdev) {
wlan_device_t *wlan = (wlan_device_t *)netdev;
return u80211_disassociate(wlan->u80211_device) == U80211_STATUS_SUCCESS ? 0 : EINVAL;
return u80211_status_to_errno(u80211_disassociate(wlan->u80211_device));
}
static bool wlan_cipher_to_u80211_cipher(uint8_t cipher, u80211_cipher_t *out) {
@@ -422,7 +460,7 @@ int wlan_set_key(netdev_t *netdev, wlan_key_t *key) {
if (!wlan_cipher_to_u80211_cipher(key->cipher, &u80211_key.cipher))
return EINVAL;
return u80211_set_key(wlan->u80211_device, &u80211_key) == U80211_STATUS_SUCCESS ? 0 : EINVAL;
return u80211_status_to_errno(u80211_set_key(wlan->u80211_device, &u80211_key));
}
int wlan_del_key(netdev_t *netdev, uint8_t index, uint8_t peer[6], uint32_t flags) {
@@ -431,5 +469,5 @@ int wlan_del_key(netdev_t *netdev, uint8_t index, uint8_t peer[6], uint32_t flag
u80211_mac_address_t mac;
memcpy(&mac, peer, 6);
return u80211_del_key(wlan->u80211_device, index, &mac, wlan_flags_to_u80211_flags(flags)) == U80211_STATUS_SUCCESS ? 0 : EINVAL;
return u80211_status_to_errno(u80211_del_key(wlan->u80211_device, index, &mac, wlan_flags_to_u80211_flags(flags)));
}