| 
									
										
										
										
											2005-04-16 15:20:36 -07:00
										 |  |  | #ifndef _ASM_M32R_SOCKET_H
 | 
					
						
							|  |  |  | #define _ASM_M32R_SOCKET_H
 | 
					
						
							|  |  |  | 
 | 
					
						
							|  |  |  | #include <asm/sockios.h>
 | 
					
						
							|  |  |  | 
 | 
					
						
							|  |  |  | /* For setsockoptions(2) */ | 
					
						
							|  |  |  | #define SOL_SOCKET	1
 | 
					
						
							|  |  |  | 
 | 
					
						
							|  |  |  | #define SO_DEBUG	1
 | 
					
						
							|  |  |  | #define SO_REUSEADDR	2
 | 
					
						
							|  |  |  | #define SO_TYPE		3
 | 
					
						
							|  |  |  | #define SO_ERROR	4
 | 
					
						
							|  |  |  | #define SO_DONTROUTE	5
 | 
					
						
							|  |  |  | #define SO_BROADCAST	6
 | 
					
						
							|  |  |  | #define SO_SNDBUF	7
 | 
					
						
							|  |  |  | #define SO_RCVBUF	8
 | 
					
						
							| 
									
										
										
										
											2005-08-09 19:30:51 -07:00
										 |  |  | #define SO_SNDBUFFORCE	32
 | 
					
						
							|  |  |  | #define SO_RCVBUFFORCE	33
 | 
					
						
							| 
									
										
										
										
											2005-04-16 15:20:36 -07:00
										 |  |  | #define SO_KEEPALIVE	9
 | 
					
						
							|  |  |  | #define SO_OOBINLINE	10
 | 
					
						
							|  |  |  | #define SO_NO_CHECK	11
 | 
					
						
							|  |  |  | #define SO_PRIORITY	12
 | 
					
						
							|  |  |  | #define SO_LINGER	13
 | 
					
						
							|  |  |  | #define SO_BSDCOMPAT	14
 | 
					
						
							|  |  |  | /* To add :#define SO_REUSEPORT 15 */ | 
					
						
							|  |  |  | #define SO_PASSCRED	16
 | 
					
						
							|  |  |  | #define SO_PEERCRED	17
 | 
					
						
							|  |  |  | #define SO_RCVLOWAT	18
 | 
					
						
							|  |  |  | #define SO_SNDLOWAT	19
 | 
					
						
							|  |  |  | #define SO_RCVTIMEO	20
 | 
					
						
							|  |  |  | #define SO_SNDTIMEO	21
 | 
					
						
							|  |  |  | 
 | 
					
						
							|  |  |  | /* Security levels - as per NRL IPv6 - don't actually do anything */ | 
					
						
							|  |  |  | #define SO_SECURITY_AUTHENTICATION		22
 | 
					
						
							|  |  |  | #define SO_SECURITY_ENCRYPTION_TRANSPORT	23
 | 
					
						
							|  |  |  | #define SO_SECURITY_ENCRYPTION_NETWORK		24
 | 
					
						
							|  |  |  | 
 | 
					
						
							|  |  |  | #define SO_BINDTODEVICE	25
 | 
					
						
							|  |  |  | 
 | 
					
						
							|  |  |  | /* Socket filtering */ | 
					
						
							|  |  |  | #define SO_ATTACH_FILTER        26
 | 
					
						
							|  |  |  | #define SO_DETACH_FILTER        27
 | 
					
						
							|  |  |  | 
 | 
					
						
							|  |  |  | #define SO_PEERNAME		28
 | 
					
						
							|  |  |  | #define SO_TIMESTAMP		29
 | 
					
						
							|  |  |  | #define SCM_TIMESTAMP		SO_TIMESTAMP
 | 
					
						
							|  |  |  | 
 | 
					
						
							|  |  |  | #define SO_ACCEPTCONN		30
 | 
					
						
							|  |  |  | 
 | 
					
						
							|  |  |  | #define SO_PEERSEC		31
 | 
					
						
							| 
									
										
											  
											
												[AF_UNIX]: Datagram getpeersec
This patch implements an API whereby an application can determine the
label of its peer's Unix datagram sockets via the auxiliary data mechanism of
recvmsg.
Patch purpose:
This patch enables a security-aware application to retrieve the
security context of the peer of a Unix datagram socket.  The application
can then use this security context to determine the security context for
processing on behalf of the peer who sent the packet.
Patch design and implementation:
The design and implementation is very similar to the UDP case for INET
sockets.  Basically we build upon the existing Unix domain socket API for
retrieving user credentials.  Linux offers the API for obtaining user
credentials via ancillary messages (i.e., out of band/control messages
that are bundled together with a normal message).  To retrieve the security
context, the application first indicates to the kernel such desire by
setting the SO_PASSSEC option via getsockopt.  Then the application
retrieves the security context using the auxiliary data mechanism.
An example server application for Unix datagram socket should look like this:
toggle = 1;
toggle_len = sizeof(toggle);
setsockopt(sockfd, SOL_SOCKET, SO_PASSSEC, &toggle, &toggle_len);
recvmsg(sockfd, &msg_hdr, 0);
if (msg_hdr.msg_controllen > sizeof(struct cmsghdr)) {
    cmsg_hdr = CMSG_FIRSTHDR(&msg_hdr);
    if (cmsg_hdr->cmsg_len <= CMSG_LEN(sizeof(scontext)) &&
        cmsg_hdr->cmsg_level == SOL_SOCKET &&
        cmsg_hdr->cmsg_type == SCM_SECURITY) {
        memcpy(&scontext, CMSG_DATA(cmsg_hdr), sizeof(scontext));
    }
}
sock_setsockopt is enhanced with a new socket option SOCK_PASSSEC to allow
a server socket to receive security context of the peer.
Testing:
We have tested the patch by setting up Unix datagram client and server
applications.  We verified that the server can retrieve the security context
using the auxiliary data mechanism of recvmsg.
Signed-off-by: Catherine Zhang <cxzhang@watson.ibm.com>
Acked-by: Acked-by: James Morris <jmorris@namei.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
											
										 
											2006-06-29 12:27:47 -07:00
										 |  |  | #define SO_PASSSEC		34
 | 
					
						
							| 
									
										
										
										
											2007-03-25 22:14:49 -07:00
										 |  |  | #define SO_TIMESTAMPNS		35
 | 
					
						
							|  |  |  | #define SCM_TIMESTAMPNS		SO_TIMESTAMPNS
 | 
					
						
							| 
									
										
										
										
											2005-04-16 15:20:36 -07:00
										 |  |  | 
 | 
					
						
							| 
									
										
										
										
											2008-01-30 19:08:16 -08:00
										 |  |  | #define SO_MARK			36
 | 
					
						
							|  |  |  | 
 | 
					
						
							| 
									
										
										
										
											2009-02-12 05:03:36 +00:00
										 |  |  | #define SO_TIMESTAMPING		37
 | 
					
						
							|  |  |  | #define SCM_TIMESTAMPING	SO_TIMESTAMPING
 | 
					
						
							|  |  |  | 
 | 
					
						
							| 
									
										
										
										
											2009-08-04 07:28:28 +00:00
										 |  |  | #define SO_PROTOCOL		38
 | 
					
						
							| 
									
										
										
										
											2009-08-04 07:28:29 +00:00
										 |  |  | #define SO_DOMAIN		39
 | 
					
						
							| 
									
										
										
										
											2009-08-04 07:28:28 +00:00
										 |  |  | 
 | 
					
						
							| 
									
										
										
										
											2005-04-16 15:20:36 -07:00
										 |  |  | #endif /* _ASM_M32R_SOCKET_H */
 |