diff options
Diffstat (limited to 'include/linux')
| -rw-r--r-- | include/linux/can/skb.h | 35 |
1 files changed, 35 insertions, 0 deletions
diff --git a/include/linux/can/skb.h b/include/linux/can/skb.h new file mode 100644 index 000000000000..4b0f24d3a878 --- /dev/null +++ b/include/linux/can/skb.h @@ -0,0 +1,35 @@ +/* + * linux/can/skb.h + * + * Definitions for the CAN network socket buffer + * + * Copyright (C) 2012 Oliver Hartkopp <socketcan@hartkopp.net> + * + */ + +#ifndef CAN_SKB_H +#define CAN_SKB_H + +#include <linux/types.h> +#include <linux/can.h> + +/* + * The struct can_skb_priv is used to transport additional information along + * with the stored struct can(fd)_frame that can not be contained in existing + * struct sk_buff elements. + * N.B. that this information must not be modified in cloned CAN sk_buffs. + * To modify the CAN frame content or the struct can_skb_priv content + * skb_copy() needs to be used instead of skb_clone(). + */ + +/** + * struct can_skb_priv - private additional data inside CAN sk_buffs + * @ifindex: ifindex of the first interface the CAN frame appeared on + * @cf: align to the following CAN frame at skb->data + */ +struct can_skb_priv { + int ifindex; + struct can_frame cf[0]; +}; + +#endif /* CAN_SKB_H */ |