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wlan: finish glue between u80211 and u80211_drv

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Matheus
2026-09-10 10:41:52 -03:00
parent 36369449fa
commit 6a8ed4a99c
4 changed files with 83 additions and 7 deletions
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kernel-src/io/net/wlan.c
+77 -2
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@@ -1,7 +1,9 @@
#include <kernel/wlan.h>
#include <u80211/u80211.h>
#include <u80211_drv/u80211_drv.h>
#include <kernel/net.h>
#include <kernel/eth.h>
#include <kernel/interrupt.h>
#include <logging.h>
#include <string.h>
#include <errno.h>
@@ -16,8 +18,10 @@ typedef struct {
int id;
} wlan_device_t;
// 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: in u80211, change the device ops to take a (void *) handle
// TODO: general netdev cleanup:
// - use struct ops instead of having function pointers in netdev struct
@@ -44,33 +48,92 @@ static void free_id(int id) {
__atomic_fetch_and(&id_bitmap, ~(1lu << id), __ATOMIC_RELAXED);
}
static int allocate_tx_buffer(u80211_device_t *device, size_t size, u80211_tx_buffer_descriptor_t *buffer_descriptor) {
wlan_device_t *wlan = device->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;
}
static int free_tx_buffer(u80211_device_t *device, u80211_tx_buffer_descriptor_t *buffer_descriptor) {
wlan_device_t *wlan = device->driver_data;
wlan->ops->free_tx_buffer(buffer_descriptor->data);
return 0;
}
static int convert_cipher(int cipher, int *drv_cipher) {
switch (cipher) {
case -1:
*drv_cipher = U80211_DRV_CIPHER_NONE;
return U80211_STATUS_SUCCESS;
case U80211_CIPHER_CCMP:
*drv_cipher = U80211_DRV_CIPHER_CCMP;
return U80211_STATUS_SUCCESS;
case U80211_CIPHER_TKIP:
*drv_cipher = U80211_DRV_CIPHER_TKIP;
return U80211_STATUS_SUCCESS;
case U80211_CIPHER_WEP40:
*drv_cipher = U80211_DRV_CIPHER_WEP40;
return U80211_STATUS_SUCCESS;
case U80211_CIPHER_WEP104:
*drv_cipher = U80211_DRV_CIPHER_WEP104;
return U80211_STATUS_SUCCESS;
default:
return U80211_STATUS_UNSUPPORTED;
}
}
static int transmit(u80211_device_t *device, u80211_tx_buffer_descriptor_t *buffer_descriptor, const u80211_transmit_options_t *options) {
wlan_device_t *wlan = device->driver_data;
u80211_drv_transmit_options_t drv_options = {
.key = options->key
};
int status = convert_cipher(options->cipher, &drv_options.cipher);
if (status != U80211_STATUS_SUCCESS) {
wlan->ops->free_tx_buffer(buffer_descriptor->data);
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;
}
static int set_channel(u80211_device_t *device, int channel) {
wlan_device_t *wlan = device->driver_data;
return wlan->ops->set_channel(wlan->driver_handle, channel) == U80211_DRV_STATUS_SUCCESS ?
U80211_STATUS_SUCCESS : U80211_STATUS_UNKNOWN_ERROR;
}
static int set_key(u80211_device_t *device, const u80211_key_t *key) {
wlan_device_t *wlan = device->driver_data;
u80211_drv_key_t drv_key = {
.index = key->index,
.key = key->key,
.key_len = key->key_len,
.flags = key->flags
};
memcpy(drv_key.peer, key->peer.bytes, sizeof(drv_key.peer));
int status = convert_cipher(key->cipher, &drv_key.cipher);
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;
}
static int del_key(u80211_device_t *device, uint8_t index, const u80211_mac_address_t *peer, uint32_t flags) {
(void)peer;
(void)flags;
wlan_device_t *wlan = device->driver_data;
return wlan->ops->del_key(wlan->driver_handle, index) == U80211_DRV_STATUS_SUCCESS ?
U80211_STATUS_SUCCESS : U80211_STATUS_UNKNOWN_ERROR;
}
static u80211_device_ops_t ops = {
@@ -101,6 +164,7 @@ static int wlan_alloc_desc(netdev_t *netdev, size_t requested_size, netdesc_t *d
static int wlan_free_desc(netdev_t *netdev, netdesc_t *desc) {
// TODO: u80211 free descriptor call
return 0;
}
static int wlan_send_packet(netdev_t *netdev, netdesc_t desc, mac_t target, int proto) {
@@ -166,6 +230,17 @@ 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 error;
}
return error;
*network_device = wlan;
return 0;
}
void wlan_process_packet(u80211_drv_network_device_handle_t handle, void *packet, size_t packet_size) {
wlan_device_t *wlan = (wlan_device_t *)handle;
long ipl = interrupt_raiseipl(IPL_DPC);
u80211_process_packet(wlan->u80211_device, packet, packet_size);
interrupt_loweripl(ipl);
}