net/can/af_can.c
Source file repositories/reference/linux-study-clean/net/can/af_can.c
File Facts
- System
- Linux kernel
- Corpus path
net/can/af_can.c- Extension
.c- Size
- 25558 bytes
- Lines
- 933
- Domain
- Networking Core
- Bucket
- Sockets, Protocols, Packet Path, And Network Policy
- Inferred role
- Networking Core: exported/initcall integration point
- Status
- integration implementation candidate
Why This File Exists
Networking stack implementation surface: socket APIs, protocol dispatch, packet flow, routing, filtering, and network namespaces.
- Networking stack implementation surface: socket APIs, protocol dispatch, packet flow, routing, filtering, and network namespaces.
- Exports symbols or registers init work; inspect boot/module ordering and who consumes the exported contract.
- Uses kernel synchronization; read lock ordering, sleepability, and interrupt context assumptions before translating.
- Allocates kernel memory; connect allocation flags and lifetime to context constraints.
- Defines or uses C structs; map object ownership, embedded links, reference counts, and lock ownership.
Dependency Surface
linux/module.hlinux/stddef.hlinux/init.hlinux/kmod.hlinux/slab.hlinux/list.hlinux/spinlock.hlinux/rcupdate.hlinux/uaccess.hlinux/net.hlinux/netdevice.hlinux/socket.hlinux/if_ether.hlinux/if_arp.hlinux/skbuff.hlinux/can.hlinux/can/core.hlinux/can/skb.hlinux/can/can-ml.hlinux/ratelimit.hnet/net_namespace.hnet/sock.haf_can.h
Detected Declarations
function can_sock_destructfunction can_put_protofunction can_createfunction can_sendfunction skb_clonefunction effhashfunction maskfunction invertedfunction can_rx_delete_receiverfunction givenfunction deliverfunction can_rcv_filterfunction hlist_for_each_entry_rcufunction can_set_skb_uidfunction can_receivefunction can_rcvfunction canfd_rcvfunction canxl_rcvfunction can_proto_registerfunction can_proto_unregisterfunction can_pernet_initfunction can_pernet_exitfunction can_initfunction can_exitmodule init can_initexport can_sock_destructexport can_sendexport can_rx_registerexport can_rx_unregisterexport can_set_skb_uidexport can_proto_registerexport can_proto_unregister
Annotated Snippet
module_init(can_init);
module_exit(can_exit);Annotation
- Immediate include surface: `linux/module.h`, `linux/stddef.h`, `linux/init.h`, `linux/kmod.h`, `linux/slab.h`, `linux/list.h`, `linux/spinlock.h`, `linux/rcupdate.h`.
- Detected declarations: `function can_sock_destruct`, `function can_put_proto`, `function can_create`, `function can_send`, `function skb_clone`, `function effhash`, `function mask`, `function inverted`, `function can_rx_delete_receiver`, `function given`.
- Atlas domain: Networking Core / Sockets, Protocols, Packet Path, And Network Policy.
- Implementation status: integration implementation candidate.
- Synchronization appears in or near this file; preserve lock ordering, sleepability, and interrupt-context constraints.
Implementation Notes
- This generated page is the file-by-file coverage layer; curated subsystem chapters should link here when they synthesize a multi-file control flow.
- Core OS pages should be promoted from atlas-only to deep-reviewed when they explain data structures, invariants, locking, lifecycle, and C implementation snippets.
- Driver-family pages are intentionally pattern-oriented unless they are part of the selected PCIe/NVMe representative device path.