accel-ppp.git/drivers/vlan_mon, branch sstp-alloc-invariant

vlan_mon: bind ETH_P_ALL packet handler to init_net on kernels >= 6.6

2026-05-02T11:56:26+00:00

The vlan_mon driver registers a global packet_type with type=ETH_P_ALL to intercept PADI/IP/ARP frames before they reach the protocol stack. Since Linux 6.6 the per-net-namespace ptype_all conversion (commit "net: af_packet: switch ptype_all to per-net-namespace lists") requires every ETH_P_ALL packet_type to have either ->dev or ->af_packet_net set; ptype_head() now does: WARN_ON_ONCE(!pt->af_packet_net && !pt->dev); return pt->dev ? &pt->dev->ptype_all : &pt->af_packet_net->ptype_all; With both fields NULL on our static vlan_pt, dev_add_pack() trips the WARN at module load and the handler is never linked into any usable list, so vlan_pt_recv() is never invoked. Userspace sets up the genetlink subscription correctly and gets a clean ACK from VLAN_MON_CMD_ADD, but no notifications ever arrive because the kernel side never sees the PADI. PPPoE-over-VLAN tests time out waiting for PADO. This was visible on Ubuntu's 6.17 azure kernel as a backtrace from vlan_mon_init -> dev_add_pack at net/core/dev.c:609 in dmesg, and as a silent failure of tests/accel-pppd/pppoe/test_pppoe_vlan_mon. Set vlan_pt.af_packet_net = &init_net before dev_add_pack() on kernels new enough to require it. The driver only operates in init_net anyway (all dev_get_by_index() calls are against &init_net), so this matches existing behaviour. Signed-off-by: Denys Fedoryshchenko

Revert "build: add dkms support for ipoe and vlan_mon drivers, ci optimizations"

2024-08-18T12:36:13+00:00

build: add dkms support for ipoe and vlan_mon drivers, ci optimizations

2024-06-02T12:30:48+00:00

Signed-off-by: Sergey V. Lobanov

ipoe/vlan_mon: Add proper accel_ppp_version to vlan_mon and ipoe

2024-04-02T00:15:30+00:00

Signed-off-by: Denys Fedoryshchenko

ipoe:vlan_mon: add support for kernels 6.4+

2023-09-23T09:35:42+00:00

ipoe,vlan_mon: add support for kernels 6.1+

2023-01-24T12:49:04+00:00

Co-authored-by: Martin Zaharinov

ipoe,vlan_mon: add support for kernels 5.2+

2019-12-24T11:50:04+00:00

cmake: reworked debian related package generation rules

2018-01-06T17:56:52+00:00

ipoe,vlan_mon: updated up to kernel 4.14

2017-12-27T20:52:31+00:00

ipoe,vlan_mon: define RHEL_MAJOR=0 if not set

2017-12-15T14:32:44+00:00