include/uapi/linux/route.h

Source file repositories/reference/linux-study-clean/include/uapi/linux/route.h

File Facts

System
Linux kernel
Corpus path
include/uapi/linux/route.h
Extension
.h
Size
2392 bytes
Lines
71
Domain
Core OS
Bucket
Core Kernel Interface
Inferred role
Core OS: implementation source
Status
source implementation candidate

Why This File Exists

Core operating-system implementation surface: boot, tasks, memory, VFS, syscall-facing interfaces, synchronization, credentials, and isolation.

Dependency Surface

Detected Declarations

Annotated Snippet

struct rtentry {
	unsigned long	rt_pad1;
	struct sockaddr	rt_dst;		/* target address		*/
	struct sockaddr	rt_gateway;	/* gateway addr (RTF_GATEWAY)	*/
	struct sockaddr	rt_genmask;	/* target network mask (IP)	*/
	unsigned short	rt_flags;
	short		rt_pad2;
	unsigned long	rt_pad3;
	void		*rt_pad4;
	short		rt_metric;	/* +1 for binary compatibility!	*/
	char __user	*rt_dev;	/* forcing the device at add	*/
	unsigned long	rt_mtu;		/* per route MTU/Window 	*/
#ifndef __KERNEL__
#define rt_mss	rt_mtu			/* Compatibility :-(            */
#endif
	unsigned long	rt_window;	/* Window clamping 		*/
	unsigned short	rt_irtt;	/* Initial RTT			*/
};


#define	RTF_UP		0x0001		/* route usable		  	*/
#define	RTF_GATEWAY	0x0002		/* destination is a gateway	*/
#define	RTF_HOST	0x0004		/* host entry (net otherwise)	*/
#define RTF_REINSTATE	0x0008		/* reinstate route after tmout	*/
#define	RTF_DYNAMIC	0x0010		/* created dyn. (by redirect)	*/
#define	RTF_MODIFIED	0x0020		/* modified dyn. (by redirect)	*/
#define RTF_MTU		0x0040		/* specific MTU for this route	*/
#define RTF_MSS		RTF_MTU		/* Compatibility :-(		*/
#define RTF_WINDOW	0x0080		/* per route window clamping	*/
#define RTF_IRTT	0x0100		/* Initial round trip time	*/
#define RTF_REJECT	0x0200		/* Reject route			*/

/*
 *	<linux/ipv6_route.h> uses RTF values >= 64k
 */



#endif	/* _LINUX_ROUTE_H */

Annotation

Implementation Notes