On Wed, Sep 20, 2023 at 05:26:36PM +0800, Konstantin Meskhidze wrote: > This commit adds network rules support in the ruleset management > helpers and the landlock_create_ruleset syscall. > Refactor user space API to support network actions. Add new network > access flags, network rule and network attributes. Increment Landlock > ABI version. Expand access_masks_t to u32 to be sure network access > rights can be stored. Implement socket_bind() and socket_connect() > LSM hooks, which enables to restrict TCP socket binding and connection > to specific ports. > The new landlock_net_port_attr structure has two fields. The allowed_access > field contains the LANDLOCK_ACCESS_NET_* rights. The port field contains > the port value according to the allowed protocol. This field can > take up to a 64-bit value [1] but the maximum value depends on the related > protocol (e.g. 16-bit for TCP). > > [1] > https://lore.kernel.org/r/278ab07f-7583-a4e0-3d37-1bacd091531d@xxxxxxxxxxx Could you please include here the rationale to not tie access rights to sockets' file descriptor, and link [2]? [2] https://lore.kernel.org/r/263c1eb3-602f-57fe-8450-3f138581bee7@xxxxxxxxxxx
