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											2009-05-13 22:56:27 +00:00
										 |  |  | #ifndef __ASM_GENERIC_SOCKET_H
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							|  |  |  | #define __ASM_GENERIC_SOCKET_H
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							|  |  |  | #include <asm/sockios.h>
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							|  |  |  | /* For setsockopt(2) */ | 
					
						
							|  |  |  | #define SOL_SOCKET	1
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							|  |  |  | #define SO_DEBUG	1
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							|  |  |  | #define SO_REUSEADDR	2
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							|  |  |  | #define SO_TYPE		3
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							|  |  |  | #define SO_ERROR	4
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							|  |  |  | #define SO_DONTROUTE	5
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							|  |  |  | #define SO_BROADCAST	6
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							|  |  |  | #define SO_SNDBUF	7
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							|  |  |  | #define SO_RCVBUF	8
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							|  |  |  | #define SO_SNDBUFFORCE	32
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							|  |  |  | #define SO_RCVBUFFORCE	33
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							|  |  |  | #define SO_KEEPALIVE	9
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							|  |  |  | #define SO_OOBINLINE	10
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							|  |  |  | #define SO_NO_CHECK	11
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							|  |  |  | #define SO_PRIORITY	12
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							|  |  |  | #define SO_LINGER	13
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							|  |  |  | #define SO_BSDCOMPAT	14
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										 |  |  | #define SO_REUSEPORT	15
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										 |  |  | #ifndef SO_PASSCRED /* powerpc only differs in these */
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							|  |  |  | #define SO_PASSCRED	16
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							|  |  |  | #define SO_PEERCRED	17
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							|  |  |  | #define SO_RCVLOWAT	18
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							|  |  |  | #define SO_SNDLOWAT	19
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							|  |  |  | #define SO_RCVTIMEO	20
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							|  |  |  | #define SO_SNDTIMEO	21
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							|  |  |  | #endif
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							|  |  |  | /* Security levels - as per NRL IPv6 - don't actually do anything */ | 
					
						
							|  |  |  | #define SO_SECURITY_AUTHENTICATION		22
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							|  |  |  | #define SO_SECURITY_ENCRYPTION_TRANSPORT	23
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							|  |  |  | #define SO_SECURITY_ENCRYPTION_NETWORK		24
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							|  |  |  | #define SO_BINDTODEVICE	25
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							|  |  |  | /* Socket filtering */ | 
					
						
							|  |  |  | #define SO_ATTACH_FILTER	26
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							|  |  |  | #define SO_DETACH_FILTER	27
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												sk-filter: Add ability to get socket filter program (v2)
The SO_ATTACH_FILTER option is set only. I propose to add the get
ability by using SO_ATTACH_FILTER in getsockopt. To be less
irritating to eyes the SO_GET_FILTER alias to it is declared. This
ability is required by checkpoint-restore project to be able to
save full state of a socket.
There are two issues with getting filter back.
First, kernel modifies the sock_filter->code on filter load, thus in
order to return the filter element back to user we have to decode it
into user-visible constants. Fortunately the modification in question
is interconvertible.
Second, the BPF_S_ALU_DIV_K code modifies the command argument k to
speed up the run-time division by doing kernel_k = reciprocal(user_k).
Bad news is that different user_k may result in same kernel_k, so we
can't get the original user_k back. Good news is that we don't have
to do it. What we need to is calculate a user2_k so, that
  reciprocal(user2_k) == reciprocal(user_k) == kernel_k
i.e. if it's re-loaded back the compiled again value will be exactly
the same as it was. That said, the user2_k can be calculated like this
  user2_k = reciprocal(kernel_k)
with an exception, that if kernel_k == 0, then user2_k == 1.
The optlen argument is treated like this -- when zero, kernel returns
the amount of sock_fprog elements in filter, otherwise it should be
large enough for the sock_fprog array.
changes since v1:
* Declared SO_GET_FILTER in all arch headers
* Added decode of vlan-tag codes
Signed-off-by: Pavel Emelyanov <xemul@parallels.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
											
										 
											2012-11-01 02:01:48 +00:00
										 |  |  | #define SO_GET_FILTER		SO_ATTACH_FILTER
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							|  |  |  | #define SO_PEERNAME		28
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							|  |  |  | #define SO_TIMESTAMP		29
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							|  |  |  | #define SCM_TIMESTAMP		SO_TIMESTAMP
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							|  |  |  | #define SO_ACCEPTCONN		30
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							|  |  |  | #define SO_PEERSEC		31
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							|  |  |  | #define SO_PASSSEC		34
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							|  |  |  | #define SO_TIMESTAMPNS		35
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							|  |  |  | #define SCM_TIMESTAMPNS		SO_TIMESTAMPNS
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							|  |  |  | #define SO_MARK			36
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							|  |  |  | #define SO_TIMESTAMPING		37
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							|  |  |  | #define SCM_TIMESTAMPING	SO_TIMESTAMPING
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										 |  |  | #define SO_PROTOCOL		38
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										 |  |  | #define SO_DOMAIN		39
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											2009-08-04 07:28:28 +00:00
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												net: Generalize socket rx gap / receive queue overflow cmsg
Create a new socket level option to report number of queue overflows
Recently I augmented the AF_PACKET protocol to report the number of frames lost
on the socket receive queue between any two enqueued frames.  This value was
exported via a SOL_PACKET level cmsg.  AFter I completed that work it was
requested that this feature be generalized so that any datagram oriented socket
could make use of this option.  As such I've created this patch, It creates a
new SOL_SOCKET level option called SO_RXQ_OVFL, which when enabled exports a
SOL_SOCKET level cmsg that reports the nubmer of times the sk_receive_queue
overflowed between any two given frames.  It also augments the AF_PACKET
protocol to take advantage of this new feature (as it previously did not touch
sk->sk_drops, which this patch uses to record the overflow count).  Tested
successfully by me.
Notes:
1) Unlike my previous patch, this patch simply records the sk_drops value, which
is not a number of drops between packets, but rather a total number of drops.
Deltas must be computed in user space.
2) While this patch currently works with datagram oriented protocols, it will
also be accepted by non-datagram oriented protocols. I'm not sure if thats
agreeable to everyone, but my argument in favor of doing so is that, for those
protocols which aren't applicable to this option, sk_drops will always be zero,
and reporting no drops on a receive queue that isn't used for those
non-participating protocols seems reasonable to me.  This also saves us having
to code in a per-protocol opt in mechanism.
3) This applies cleanly to net-next assuming that commit
977750076d98c7ff6cbda51858bb5a5894a9d9ab (my af packet cmsg patch) is reverted
Signed-off-by: Neil Horman <nhorman@tuxdriver.com>
Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
											
										 
											2009-10-12 13:26:31 -07:00
										 |  |  | #define SO_RXQ_OVFL             40
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											2011-11-09 10:15:42 +01:00
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							|  |  |  | #define SO_WIFI_STATUS		41
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							|  |  |  | #define SCM_WIFI_STATUS	SO_WIFI_STATUS
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										 |  |  | #define SO_PEEK_OFF		42
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											2012-02-11 15:39:30 +00:00
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							|  |  |  | /* Instruct lower device to use last 4-bytes of skb data as FCS */ | 
					
						
							|  |  |  | #define SO_NOFCS		43
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										 |  |  | #define SO_LOCK_FILTER		44
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										 |  |  | #define SO_SELECT_ERR_QUEUE	45
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										 |  |  | #define SO_BUSY_POLL		46
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										 |  |  | #define SO_MAX_PACING_RATE	47
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										 |  |  | #define SO_BPF_EXTENSIONS	48
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										 |  |  | #endif /* __ASM_GENERIC_SOCKET_H */
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