kernel/linux.git/tools/testing/selftests/net/ncdevmem.c, branch v6.12.80

tests/ncdevmem: Fix double-free of queue array

2025-05-22T12:29:40+00:00

[ Upstream commit 97c4e094a4b2edbb4fffeda718f8e806f825a18f ] netdev_bind_rx takes ownership of the queue array passed as parameter and frees it, so a queue array buffer cannot be reused across multiple netdev_bind_rx calls. This commit fixes that by always passing in a newly created queue array to all netdev_bind_rx calls in ncdevmem. Fixes: 85585b4bc8d8 ("selftests: add ncdevmem, netcat for devmem TCP") Signed-off-by: Cosmin Ratiu Acked-by: Stanislav Fomichev Reviewed-by: Joe Damato Reviewed-by: Mina Almasry Link: https://patch.msgid.link/20250508084434.1933069-1-cratiu@nvidia.com Signed-off-by: Jakub Kicinski Signed-off-by: Sasha Levin

selftests: ncdevmem: Switch to AF_INET6

2025-05-22T12:29:40+00:00

[ Upstream commit 933056357a8cf0c9b3fb2ecc4d2d8d142614f0a3 ] Use dualstack socket to support both v4 and v6. v4-mapped-v6 address can be used to do v4. Reviewed-by: Mina Almasry Reviewed-by: Joe Damato Signed-off-by: Stanislav Fomichev Link: https://patch.msgid.link/20241107181211.3934153-7-sdf@fomichev.me Signed-off-by: Jakub Kicinski Stable-dep-of: 97c4e094a4b2 ("tests/ncdevmem: Fix double-free of queue array") Signed-off-by: Sasha Levin

selftests: ncdevmem: Make client_ip optional

2025-05-22T12:29:40+00:00

[ Upstream commit 0ebd75f5f2392c2ada04c6e11447415911fe1506 ] Support 3-tuple filtering by making client_ip optional. When -c is not passed, don't specify src-ip/src-port in the filter. Reviewed-by: Mina Almasry Reviewed-by: Joe Damato Signed-off-by: Stanislav Fomichev Link: https://patch.msgid.link/20241107181211.3934153-5-sdf@fomichev.me Signed-off-by: Jakub Kicinski Stable-dep-of: 97c4e094a4b2 ("tests/ncdevmem: Fix double-free of queue array") Signed-off-by: Sasha Levin

selftests: ncdevmem: Unify error handling

2025-05-22T12:29:40+00:00

[ Upstream commit bfccbaac1b45f9af7d76589d7e31ad921b50c0d7 ] There is a bunch of places where error() calls look out of place. Use the same error(1, errno, ...) pattern everywhere. Reviewed-by: Mina Almasry Reviewed-by: Joe Damato Signed-off-by: Stanislav Fomichev Link: https://patch.msgid.link/20241107181211.3934153-4-sdf@fomichev.me Signed-off-by: Jakub Kicinski Stable-dep-of: 97c4e094a4b2 ("tests/ncdevmem: Fix double-free of queue array") Signed-off-by: Sasha Levin

selftests: ncdevmem: Separate out dmabuf provider

2025-05-22T12:29:40+00:00

[ Upstream commit 8b9049af8066b4705d83bb7847ee3c960fc58d09 ] So we can plug the other ones in the future if needed. Reviewed-by: Mina Almasry Reviewed-by: Joe Damato Signed-off-by: Stanislav Fomichev Link: https://patch.msgid.link/20241107181211.3934153-3-sdf@fomichev.me Signed-off-by: Jakub Kicinski Stable-dep-of: 97c4e094a4b2 ("tests/ncdevmem: Fix double-free of queue array") Signed-off-by: Sasha Levin

selftests: ncdevmem: Redirect all non-payload output to stderr

2025-05-22T12:29:39+00:00

[ Upstream commit 6891f0b523e1ef452523ba43d67ca2a654760e78 ] That should make it possible to do expected payload validation on the caller side. Reviewed-by: Mina Almasry Reviewed-by: Joe Damato Signed-off-by: Stanislav Fomichev Link: https://patch.msgid.link/20241107181211.3934153-2-sdf@fomichev.me Signed-off-by: Jakub Kicinski Stable-dep-of: 97c4e094a4b2 ("tests/ncdevmem: Fix double-free of queue array") Signed-off-by: Sasha Levin

selftests: add ncdevmem, netcat for devmem TCP

2024-09-12T03:44:32+00:00

ncdevmem is a devmem TCP netcat. It works similarly to netcat, but it sends and receives data using the devmem TCP APIs. It uses udmabuf as the dmabuf provider. It is compatible with a regular netcat running on a peer, or a ncdevmem running on a peer. In addition to normal netcat support, ncdevmem has a validation mode, where it sends a specific pattern and validates this pattern on the receiver side to ensure data integrity. Suggested-by: Stanislav Fomichev Signed-off-by: Mina Almasry Link: https://patch.msgid.link/20240910171458.219195-13-almasrymina@google.com Signed-off-by: Jakub Kicinski