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Merge pull request #20983 from benpicco/gnrc_netif_netdev_new_api-leak

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gnrc_netif: fix packet leak with gnrc_netif_pktq & netdev_new_api
This commit is contained in:
Marian Buschsieweke 2024-11-15 22:46:54 +00:00 committed by GitHub
commit fbf5c66f78
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GPG Key ID: B5690EEEBB952194
3 changed files with 22 additions and 7 deletions
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8
drivers/at86rf215/at86rf215_netdev.c
View File

@ -176,9 +176,11 @@ static int _send(netdev_t *netdev, const iolist_t *iolist)
at86rf215_tx_exec(dev);
}
/* return the number of bytes that were actually loaded into the frame
* buffer/send out */
return (int)len;
/* store successfully sent number of bytes */
dev->tx_frame_len = len;
/* netdev_new just returns 0 on success */
return 0;
}
static int _confirm_send(netdev_t *netdev, void *info)

6
sys/net/gnrc/netif/gnrc_netif.c
View File

@ -1810,7 +1810,7 @@ static void _tx_done(gnrc_netif_t *netif, gnrc_pktsnip_t *pkt,
}
return;
}
else {
else if (gnrc_netif_netdev_legacy_api(netif)) {
/* remove previously held packet */
gnrc_pktbuf_release(pkt);
return;
@ -1882,7 +1882,9 @@ static void _send(gnrc_netif_t *netif, gnrc_pktsnip_t *pkt, bool push_back)
}
/* hold in case device was busy to not having to rewrite *all* the link
* layer implementations in case `gnrc_netif_pktq` is included */
gnrc_pktbuf_hold(pkt, 1);
if (gnrc_netif_netdev_legacy_api(netif)) {
gnrc_pktbuf_hold(pkt, 1);
}
#endif /* IS_USED(MODULE_GNRC_NETIF_PKTQ) */
/* Record send in neighbor statistics if destination is unicast */

15
sys/net/gnrc/netif/gnrc_netif_raw.c
View File

@ -104,13 +104,24 @@ static gnrc_pktsnip_t *_recv(gnrc_netif_t *netif)
return pkt;
}
static gnrc_pktsnip_t *_skip_pkt_head(gnrc_netif_t *netif, gnrc_pktsnip_t *pkt)
{
if (gnrc_netif_netdev_legacy_api(netif)) {
/* we don't need the netif snip: remove it */
return gnrc_pktbuf_remove_snip(pkt, pkt);
}
else {
/* _tx_done() will free the entire list */
return pkt->next;
}
}
static int _send(gnrc_netif_t *netif, gnrc_pktsnip_t *pkt)
{
int res = -ENOBUFS;
if (pkt->type == GNRC_NETTYPE_NETIF) {
/* we don't need the netif snip: remove it */
pkt = gnrc_pktbuf_remove_snip(pkt, pkt);
pkt = _skip_pkt_head(netif, pkt);
}
netdev_t *dev = netif->dev;