From: Geliang Tang <tanggeliang@kylinos.cn>

v3:
 - a new patch, use sock_kfree_s instead of kfree.

v2:
 - add a new helper mptcp_userspace_pm_get_sock.

In order to implement BPF userspace path manager, it is necessary to
unify the interfaces of the path manager. This set contains some
cleanups for unify the interfaces.

struct mptcp_pm_ops {
        int (*address_announce)(struct mptcp_sock *msk,
                                struct mptcp_pm_addr_entry *local);
        int (*address_remove)(struct mptcp_sock *msk, u8 id);
        int (*subflow_create)(struct mptcp_sock *msk,
                              struct mptcp_pm_addr_entry *local,
                              struct mptcp_addr_info *remote);
        int (*subflow_destroy)(struct mptcp_sock *msk,
                               struct mptcp_pm_addr_entry *local,
                               struct mptcp_addr_info *remote);
        int (*get_local_id)(struct mptcp_sock *msk,
                            struct mptcp_pm_addr_entry *local);
        u8 (*get_flags)(struct mptcp_sock *msk,
                        struct mptcp_addr_info *skc);
        struct mptcp_pm_addr_entry *(*get_addr)(struct mptcp_sock *msk,
                                                u8 id);
        int (*dump_addr)(struct mptcp_sock *msk,
                         struct mptcp_id_bitmap *bitmap);
        int (*set_flags)(struct mptcp_sock *msk,
                         struct mptcp_pm_addr_entry *local,
                         struct mptcp_addr_info *remote);

        u8                      type;
        struct module           *owner;
        struct list_head        list;

        void (*init)(struct mptcp_sock *msk);
        void (*release)(struct mptcp_sock *msk);
} ____cacheline_aligned_in_smp;

Geliang Tang (10):
  mptcp: add struct mptcp_id_bitmap
  mptcp: add mptcp_userspace_pm_get_sock helper
  mptcp: use __lookup_addr in pm_netlink
  mptcp: use sock_kfree_s instead of kfree
  mptcp: add lookup_addr for userspace pm
  mptcp: change remote as mptcp_addr_info
  mptcp: change local as mptcp_pm_addr_entry
  mptcp: make pm wrappers static
  mptcp: drop skb parameter of get_addr
  mptcp: drop skb parameter of set_flags

 net/mptcp/pm.c           |  25 +---
 net/mptcp/pm_netlink.c   |  99 +++++++++-------
 net/mptcp/pm_userspace.c | 244 ++++++++++++++++-----------------------
 net/mptcp/protocol.h     |  18 ++-
 4 files changed, 163 insertions(+), 223 deletions(-)

-- 
2.43.0

Hi Geliang,

Thank you for your modifications, that's great!

Our CI did some validations and here is its report:

- KVM Validation: normal: Success! ✅
- KVM Validation: debug: Success! ✅
- KVM Validation: btf (only bpftest_all): Success! ✅
- Task: https://github.com/multipath-tcp/mptcp_net-next/actions/runs/11214210776

Initiator: Patchew Applier
Commits: https://github.com/multipath-tcp/mptcp_net-next/commits/d1dbc083fdf5
Patchwork: https://patchwork.kernel.org/project/mptcp/list/?series=896160


If there are some issues, you can reproduce them using the same environment as
the one used by the CI thanks to a docker image, e.g.:

    $ cd [kernel source code]
    $ docker run -v "${PWD}:${PWD}:rw" -w "${PWD}" --privileged --rm -it \
        --pull always mptcp/mptcp-upstream-virtme-docker:latest \
        auto-normal

For more details:

    https://github.com/multipath-tcp/mptcp-upstream-virtme-docker


Please note that despite all the efforts that have been already done to have a
stable tests suite when executed on a public CI like here, it is possible some
reported issues are not due to your modifications. Still, do not hesitate to
help us improve that ;-)

Cheers,
MPTCP GH Action bot
Bot operated by Matthieu Baerts (NGI0 Core)