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authorJan Engelhardt <jengelh@medozas.de>2009-08-04 03:28:29 -0400
committerDavid S. Miller <davem@davemloft.net>2009-08-05 16:02:57 -0400
commit0d6038ee76f2e06b79d0465807f67e86bf4025de (patch)
treeffb88e2f817ae2a76fece58a7f7d0de3fd37fbaf
parent49c794e94649020248e37b78db16cd25bad38b4f (diff)
net: implement a SO_DOMAIN getsockoption
This sockopt goes in line with SO_TYPE and SO_PROTOCOL. It makes it possible for userspace programs to pass around file descriptors — I am referring to arguments-to-functions, but it may even work for the fd passing over UNIX sockets — without needing to also pass the auxiliary information (PF_INET6/IPPROTO_TCP). Signed-off-by: Jan Engelhardt <jengelh@medozas.de> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat
-rw-r--r--arch/alpha/include/asm/socket.h1
-rw-r--r--arch/arm/include/asm/socket.h1
-rw-r--r--arch/avr32/include/asm/socket.h1
-rw-r--r--arch/cris/include/asm/socket.h1
-rw-r--r--arch/frv/include/asm/socket.h1
-rw-r--r--arch/h8300/include/asm/socket.h1
-rw-r--r--arch/ia64/include/asm/socket.h1
-rw-r--r--arch/m32r/include/asm/socket.h1
-rw-r--r--arch/m68k/include/asm/socket.h1
-rw-r--r--arch/microblaze/include/asm/socket.h1
-rw-r--r--arch/mips/include/asm/socket.h1
-rw-r--r--arch/mn10300/include/asm/socket.h1
-rw-r--r--arch/parisc/include/asm/socket.h1
-rw-r--r--arch/powerpc/include/asm/socket.h1
-rw-r--r--arch/s390/include/asm/socket.h1
-rw-r--r--arch/sparc/include/asm/socket.h1
-rw-r--r--arch/x86/include/asm/socket.h1
-rw-r--r--arch/xtensa/include/asm/socket.h1
-rw-r--r--include/asm-generic/socket.h1
-rw-r--r--net/core/sock.c5
20 files changed, 24 insertions, 0 deletions
diff --git a/arch/alpha/include/asm/socket.h b/arch/alpha/include/asm/socket.h
index 2f8b4d377749..26773e3246e2 100644
--- a/arch/alpha/include/asm/socket.h
+++ b/arch/alpha/include/asm/socket.h
@@ -33,6 +33,7 @@
33#define SO_SNDTIMEO 0x1013 33#define SO_SNDTIMEO 0x1013
34#define SO_ACCEPTCONN 0x1014 34#define SO_ACCEPTCONN 0x1014
35#define SO_PROTOCOL 0x1028 35#define SO_PROTOCOL 0x1028
36#define SO_DOMAIN 0x1029
36 37
37/* linux-specific, might as well be the same as on i386 */ 38/* linux-specific, might as well be the same as on i386 */
38#define SO_NO_CHECK 11 39#define SO_NO_CHECK 11
diff --git a/arch/arm/include/asm/socket.h b/arch/arm/include/asm/socket.h
index 7f47454ffbf3..92ac61d294fd 100644
--- a/arch/arm/include/asm/socket.h
+++ b/arch/arm/include/asm/socket.h
@@ -58,5 +58,6 @@
58#define SCM_TIMESTAMPING SO_TIMESTAMPING 58#define SCM_TIMESTAMPING SO_TIMESTAMPING
59 59
60#define SO_PROTOCOL 38 60#define SO_PROTOCOL 38
61#define SO_DOMAIN 39
61 62
62#endif /* _ASM_SOCKET_H */ 63#endif /* _ASM_SOCKET_H */
diff --git a/arch/avr32/include/asm/socket.h b/arch/avr32/include/asm/socket.h
index 6af2866a4f00..fe863f9794d5 100644
--- a/arch/avr32/include/asm/socket.h
+++ b/arch/avr32/include/asm/socket.h
@@ -58,5 +58,6 @@
58#define SCM_TIMESTAMPING SO_TIMESTAMPING 58#define SCM_TIMESTAMPING SO_TIMESTAMPING
59 59
60#define SO_PROTOCOL 38 60#define SO_PROTOCOL 38
61#define SO_DOMAIN 39
61 62
62#endif /* __ASM_AVR32_SOCKET_H */ 63#endif /* __ASM_AVR32_SOCKET_H */
diff --git a/arch/cris/include/asm/socket.h b/arch/cris/include/asm/socket.h
index f3859fb0990c..45ec49bdb7b1 100644
--- a/arch/cris/include/asm/socket.h
+++ b/arch/cris/include/asm/socket.h
@@ -60,6 +60,7 @@
60#define SCM_TIMESTAMPING SO_TIMESTAMPING 60#define SCM_TIMESTAMPING SO_TIMESTAMPING
61 61
62#define SO_PROTOCOL 38 62#define SO_PROTOCOL 38
63#define SO_DOMAIN 39
63 64
64#endif /* _ASM_SOCKET_H */ 65#endif /* _ASM_SOCKET_H */
65 66
diff --git a/arch/frv/include/asm/socket.h b/arch/frv/include/asm/socket.h
index 8dab3486ffa4..2dea726095c2 100644
--- a/arch/frv/include/asm/socket.h
+++ b/arch/frv/include/asm/socket.h
@@ -58,6 +58,7 @@
58#define SCM_TIMESTAMPING SO_TIMESTAMPING 58#define SCM_TIMESTAMPING SO_TIMESTAMPING
59 59
60#define SO_PROTOCOL 38 60#define SO_PROTOCOL 38
61#define SO_DOMAIN 39
61 62
62#endif /* _ASM_SOCKET_H */ 63#endif /* _ASM_SOCKET_H */
63 64
diff --git a/arch/h8300/include/asm/socket.h b/arch/h8300/include/asm/socket.h
index ba770d09cd63..1547f01c8e22 100644
--- a/arch/h8300/include/asm/socket.h
+++ b/arch/h8300/include/asm/socket.h
@@ -58,5 +58,6 @@
58#define SCM_TIMESTAMPING SO_TIMESTAMPING 58#define SCM_TIMESTAMPING SO_TIMESTAMPING
59 59
60#define SO_PROTOCOL 38 60#define SO_PROTOCOL 38
61#define SO_DOMAIN 39
61 62
62#endif /* _ASM_SOCKET_H */ 63#endif /* _ASM_SOCKET_H */
diff --git a/arch/ia64/include/asm/socket.h b/arch/ia64/include/asm/socket.h
index 091cd9d47d0f..0b0d5ff062e5 100644
--- a/arch/ia64/include/asm/socket.h
+++ b/arch/ia64/include/asm/socket.h
@@ -67,5 +67,6 @@
67#define SCM_TIMESTAMPING SO_TIMESTAMPING 67#define SCM_TIMESTAMPING SO_TIMESTAMPING
68 68
69#define SO_PROTOCOL 38 69#define SO_PROTOCOL 38
70#define SO_DOMAIN 39
70 71
71#endif /* _ASM_IA64_SOCKET_H */ 72#endif /* _ASM_IA64_SOCKET_H */
diff --git a/arch/m32r/include/asm/socket.h b/arch/m32r/include/asm/socket.h
index d36f5928fb79..3390a864f224 100644
--- a/arch/m32r/include/asm/socket.h
+++ b/arch/m32r/include/asm/socket.h
@@ -58,5 +58,6 @@
58#define SCM_TIMESTAMPING SO_TIMESTAMPING 58#define SCM_TIMESTAMPING SO_TIMESTAMPING
59 59
60#define SO_PROTOCOL 38 60#define SO_PROTOCOL 38
61#define SO_DOMAIN 39
61 62
62#endif /* _ASM_M32R_SOCKET_H */ 63#endif /* _ASM_M32R_SOCKET_H */
diff --git a/arch/m68k/include/asm/socket.h b/arch/m68k/include/asm/socket.h
index 060cb7ed024f..eee01cce921b 100644
--- a/arch/m68k/include/asm/socket.h
+++ b/arch/m68k/include/asm/socket.h
@@ -58,5 +58,6 @@
58#define SCM_TIMESTAMPING SO_TIMESTAMPING 58#define SCM_TIMESTAMPING SO_TIMESTAMPING
59 59
60#define SO_PROTOCOL 38 60#define SO_PROTOCOL 38
61#define SO_DOMAIN 39
61 62
62#endif /* _ASM_SOCKET_H */ 63#endif /* _ASM_SOCKET_H */
diff --git a/arch/microblaze/include/asm/socket.h b/arch/microblaze/include/asm/socket.h
index 96bf8bfa935e..7361ae7cfcde 100644
--- a/arch/microblaze/include/asm/socket.h
+++ b/arch/microblaze/include/asm/socket.h
@@ -67,5 +67,6 @@
67#define SCM_TIMESTAMPING SO_TIMESTAMPING 67#define SCM_TIMESTAMPING SO_TIMESTAMPING
68 68
69#define SO_PROTOCOL 38 69#define SO_PROTOCOL 38
70#define SO_DOMAIN 39
70 71
71#endif /* _ASM_MICROBLAZE_SOCKET_H */ 72#endif /* _ASM_MICROBLAZE_SOCKET_H */
diff --git a/arch/mips/include/asm/socket.h b/arch/mips/include/asm/socket.h
index 289ce5f5f2a3..ae05accd9fe4 100644
--- a/arch/mips/include/asm/socket.h
+++ b/arch/mips/include/asm/socket.h
@@ -43,6 +43,7 @@ To add: #define SO_REUSEPORT 0x0200 /* Allow local address and port reuse. */
43#define SO_RCVTIMEO 0x1006 /* receive timeout */ 43#define SO_RCVTIMEO 0x1006 /* receive timeout */
44#define SO_ACCEPTCONN 0x1009 44#define SO_ACCEPTCONN 0x1009
45#define SO_PROTOCOL 0x1028 /* protocol type */ 45#define SO_PROTOCOL 0x1028 /* protocol type */
46#define SO_DOMAIN 0x1029 /* domain/socket family */
46 47
47/* linux-specific, might as well be the same as on i386 */ 48/* linux-specific, might as well be the same as on i386 */
48#define SO_NO_CHECK 11 49#define SO_NO_CHECK 11
diff --git a/arch/mn10300/include/asm/socket.h b/arch/mn10300/include/asm/socket.h
index 19d7cf709b77..4df75af29d76 100644
--- a/arch/mn10300/include/asm/socket.h
+++ b/arch/mn10300/include/asm/socket.h
@@ -58,5 +58,6 @@
58#define SCM_TIMESTAMPING SO_TIMESTAMPING 58#define SCM_TIMESTAMPING SO_TIMESTAMPING
59 59
60#define SO_PROTOCOL 38 60#define SO_PROTOCOL 38
61#define SO_DOMAIN 39
61 62
62#endif /* _ASM_SOCKET_H */ 63#endif /* _ASM_SOCKET_H */
diff --git a/arch/parisc/include/asm/socket.h b/arch/parisc/include/asm/socket.h
index a658b09df624..960b1e5d8e16 100644
--- a/arch/parisc/include/asm/socket.h
+++ b/arch/parisc/include/asm/socket.h
@@ -25,6 +25,7 @@
25#define SO_ERROR 0x1007 25#define SO_ERROR 0x1007
26#define SO_TYPE 0x1008 26#define SO_TYPE 0x1008
27#define SO_PROTOCOL 0x1028 27#define SO_PROTOCOL 0x1028
28#define SO_DOMAIN 0x1029
28#define SO_PEERNAME 0x2000 29#define SO_PEERNAME 0x2000
29 30
30#define SO_NO_CHECK 0x400b 31#define SO_NO_CHECK 0x400b
diff --git a/arch/powerpc/include/asm/socket.h b/arch/powerpc/include/asm/socket.h
index 609049d7117e..3ab8b3e6feb0 100644
--- a/arch/powerpc/include/asm/socket.h
+++ b/arch/powerpc/include/asm/socket.h
@@ -65,5 +65,6 @@
65#define SCM_TIMESTAMPING SO_TIMESTAMPING 65#define SCM_TIMESTAMPING SO_TIMESTAMPING
66 66
67#define SO_PROTOCOL 38 67#define SO_PROTOCOL 38
68#define SO_DOMAIN 39
68 69
69#endif /* _ASM_POWERPC_SOCKET_H */ 70#endif /* _ASM_POWERPC_SOCKET_H */
diff --git a/arch/s390/include/asm/socket.h b/arch/s390/include/asm/socket.h
index 65baa9a83abc..e42df89a0b85 100644
--- a/arch/s390/include/asm/socket.h
+++ b/arch/s390/include/asm/socket.h
@@ -66,5 +66,6 @@
66#define SCM_TIMESTAMPING SO_TIMESTAMPING 66#define SCM_TIMESTAMPING SO_TIMESTAMPING
67 67
68#define SO_PROTOCOL 38 68#define SO_PROTOCOL 38
69#define SO_DOMAIN 39
69 70
70#endif /* _ASM_SOCKET_H */ 71#endif /* _ASM_SOCKET_H */
diff --git a/arch/sparc/include/asm/socket.h b/arch/sparc/include/asm/socket.h
index 9cbbfafd0538..3a5ae3d12088 100644
--- a/arch/sparc/include/asm/socket.h
+++ b/arch/sparc/include/asm/socket.h
@@ -30,6 +30,7 @@
30#define SO_ERROR 0x1007 30#define SO_ERROR 0x1007
31#define SO_TYPE 0x1008 31#define SO_TYPE 0x1008
32#define SO_PROTOCOL 0x1028 32#define SO_PROTOCOL 0x1028
33#define SO_DOMAIN 0x1029
33 34
34 35
35/* Linux specific, keep the same. */ 36/* Linux specific, keep the same. */
diff --git a/arch/x86/include/asm/socket.h b/arch/x86/include/asm/socket.h
index 1077d2535a32..b2a8c74f2d06 100644
--- a/arch/x86/include/asm/socket.h
+++ b/arch/x86/include/asm/socket.h
@@ -58,5 +58,6 @@
58#define SCM_TIMESTAMPING SO_TIMESTAMPING 58#define SCM_TIMESTAMPING SO_TIMESTAMPING
59 59
60#define SO_PROTOCOL 38 60#define SO_PROTOCOL 38
61#define SO_DOMAIN 39
61 62
62#endif /* _ASM_X86_SOCKET_H */ 63#endif /* _ASM_X86_SOCKET_H */
diff --git a/arch/xtensa/include/asm/socket.h b/arch/xtensa/include/asm/socket.h
index e47f172142f1..beb3a6bdb61d 100644
--- a/arch/xtensa/include/asm/socket.h
+++ b/arch/xtensa/include/asm/socket.h
@@ -69,5 +69,6 @@
69#define SCM_TIMESTAMPING SO_TIMESTAMPING 69#define SCM_TIMESTAMPING SO_TIMESTAMPING
70 70
71#define SO_PROTOCOL 38 71#define SO_PROTOCOL 38
72#define SO_DOMAIN 39
72 73
73#endif /* _XTENSA_SOCKET_H */ 74#endif /* _XTENSA_SOCKET_H */
diff --git a/include/asm-generic/socket.h b/include/asm-generic/socket.h
index 7e24d186616e..538991cef6f0 100644
--- a/include/asm-generic/socket.h
+++ b/include/asm-generic/socket.h
@@ -61,5 +61,6 @@
61#define SCM_TIMESTAMPING SO_TIMESTAMPING 61#define SCM_TIMESTAMPING SO_TIMESTAMPING
62 62
63#define SO_PROTOCOL 38 63#define SO_PROTOCOL 38
64#define SO_DOMAIN 39
64 65
65#endif /* __ASM_GENERIC_SOCKET_H */ 66#endif /* __ASM_GENERIC_SOCKET_H */
diff --git a/net/core/sock.c b/net/core/sock.c
index ebce661234ac..3ac34ea6ec05 100644
--- a/net/core/sock.c
+++ b/net/core/sock.c
@@ -483,6 +483,7 @@ int sock_setsockopt(struct socket *sock, int level, int optname,
483 break; 483 break;
484 case SO_TYPE: 484 case SO_TYPE:
485 case SO_PROTOCOL: 485 case SO_PROTOCOL:
486 case SO_DOMAIN:
486 case SO_ERROR: 487 case SO_ERROR:
487 ret = -ENOPROTOOPT; 488 ret = -ENOPROTOOPT;
488 break; 489 break;
@@ -769,6 +770,10 @@ int sock_getsockopt(struct socket *sock, int level, int optname,
769 v.val = sk->sk_protocol; 770 v.val = sk->sk_protocol;
770 break; 771 break;
771 772
773 case SO_DOMAIN:
774 v.val = sk->sk_family;
775 break;
776
772 case SO_ERROR: 777 case SO_ERROR:
773 v.val = -sock_error(sk); 778 v.val = -sock_error(sk);
774 if (v.val == 0) 779 if (v.val == 0)
generated by cgit v1.2.2 (git 2.25.0) at 2024-12-11 03:15:19 -0500